/* roulang page: index */
:root {
            --color-primary: #1a1a2e;
            --color-primary-light: #252540;
            --color-accent: #c8963e;
            --color-accent-light: #d4a843;
            --color-accent-glow: #e8c97a;
            --color-bg: #fafaf8;
            --color-bg-alt: #f3f1ec;
            --color-bg-dark: #1a1a2e;
            --color-surface: #ffffff;
            --color-text: #1f1f1f;
            --color-text-soft: #5a5a5a;
            --color-text-muted: #8a8a8a;
            --color-text-inverse: #f5f5f0;
            --color-border: #e4e1da;
            --color-border-light: #efede8;
            --color-success: #2d8c5a;
            --color-warning: #d4902a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 22px;
            --radius-2xl: 28px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 18px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 14px 48px rgba(0, 0, 0, 0.14);
            --shadow-accent: 0 4px 20px rgba(200, 150, 62, 0.25);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
            --spacing-xs: 6px;
            --spacing-sm: 14px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-2xl: 80px;
            --spacing-3xl: 100px;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        .button {
            cursor: pointer;
            font-family: var(--font-sans);
            transition: all var(--transition-base);
            border: none;
            outline: none;
        }
        button:focus-visible,
        .button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }

        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        input:focus,
        select:focus,
        textarea:focus {
            outline: none;
            border-color: var(--color-accent) !important;
            box-shadow: 0 0 0 3px rgba(200, 150, 62, 0.12) !important;
        }

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 20px;
        }
        .header-logo {
            font-family: var(--font-display);
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }
        .header-logo:hover {
            color: var(--color-accent);
        }
        .header-logo .logo-accent {
            color: var(--color-accent);
        }
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            padding: 4px;
            border-radius: var(--radius-xl);
            background: var(--color-bg-alt);
        }
        .nav-tabs::-webkit-scrollbar {
            display: none;
        }
        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            border-radius: var(--radius-xl);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            white-space: nowrap;
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            letter-spacing: 0.02em;
            position: relative;
        }
        .nav-tab:hover {
            color: var(--color-primary);
            background: rgba(0, 0, 0, 0.04);
        }
        .nav-tab.active {
            color: #fff;
            background: var(--color-primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }
        .nav-tab.active:hover {
            color: #fff;
            background: var(--color-primary-light);
        }
        .header-cta {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            border-radius: var(--radius-xl);
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            white-space: nowrap;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-accent);
            text-decoration: none;
        }
        .header-cta:hover {
            background: var(--color-accent-light);
            color: #fff;
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.35);
            transform: translateY(-1px);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            cursor: pointer;
            padding: 6px;
            border-radius: var(--radius-sm);
        }
        @media (max-width: 1024px) {
            .nav-tabs {
                gap: 2px;
                padding: 3px;
            }
            .nav-tab {
                padding: 7px 13px;
                font-size: 0.82rem;
            }
            .header-cta {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
            .header-logo {
                font-size: 1.25rem;
            }
        }
        @media (max-width: 768px) {
            .nav-tabs {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                flex-direction: column;
                background: #fff;
                border-bottom: 1px solid var(--color-border);
                border-radius: 0;
                padding: 12px 16px;
                gap: 2px;
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-tabs.open {
                display: flex;
            }
            .nav-tab {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
                border-radius: var(--radius-md);
                font-size: 0.95rem;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-cta {
                display: none;
            }
            .header-cta-mobile {
                display: inline-flex !important;
                margin-left: auto;
                padding: 7px 14px;
                font-size: 0.8rem;
            }
        }
        .header-cta-mobile {
            display: none;
        }

        /* ============ FLOATING CTA ============ */
        .floating-cta {
            position: fixed;
            bottom: 28px;
            right: 28px;
            z-index: 999;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 24px;
            border-radius: var(--radius-2xl);
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            box-shadow: 0 8px 32px rgba(200, 150, 62, 0.4);
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            animation: floatPulse 2.8s ease-in-out infinite;
        }
        .floating-cta:hover {
            background: var(--color-accent-light);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(200, 150, 62, 0.5);
            animation: none;
        }
        @keyframes floatPulse {
            0%,
            100% {
                box-shadow: 0 8px 32px rgba(200, 150, 62, 0.4);
            }
            50% {
                box-shadow: 0 14px 44px rgba(200, 150, 62, 0.6);
            }
        }
        @media (max-width: 768px) {
            .floating-cta {
                bottom: 18px;
                right: 14px;
                padding: 11px 18px;
                font-size: 0.85rem;
                border-radius: var(--radius-xl);
            }
        }

        /* ============ SECTIONS ============ */
        section {
            padding: var(--spacing-2xl) 0;
            position: relative;
        }
        @media (max-width: 768px) {
            section {
                padding: var(--spacing-xl) 0;
            }
        }
        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: 10px;
            padding: 5px 14px;
            background: rgba(200, 150, 62, 0.08);
            border-radius: var(--radius-xl);
        }
        .section-title {
            font-family: var(--font-display);
            font-size: 2.1rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            max-width: 620px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.55rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
        }

        /* ============ HERO - 白皮书获客 ============ */
        .hero-section {
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
            background: linear-gradient(175deg, #fafaf8 0%, #f3f1ec 40%, #eae6dd 100%);
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -180px;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        @media (max-width: 768px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        .hero-content h1 {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.04em;
            line-height: 1.2;
            margin-bottom: 18px;
        }
        .hero-content h1 .highlight {
            color: var(--color-accent);
            position: relative;
        }
        .hero-content .hero-desc {
            font-size: 1.08rem;
            color: var(--color-text-soft);
            line-height: 1.75;
            margin-bottom: 24px;
            max-width: 520px;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 20px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-xl);
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-accent);
            text-decoration: none;
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--color-accent-light);
            color: #fff;
            box-shadow: 0 8px 28px rgba(200, 150, 62, 0.4);
            transform: translateY(-2px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-xl);
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            border: 2px solid var(--color-border);
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
        }
        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(200, 150, 62, 0.03);
        }
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-whitepaper-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 30px;
            box-shadow: var(--shadow-xl);
            position: relative;
            max-width: 420px;
            width: 100%;
            transition: transform var(--transition-slow), box-shadow var(--transition-slow);
        }
        .hero-whitepaper-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 18px 50px rgba(0, 0, 0, 0.16);
        }
        .hero-whitepaper-card .wp-cover {
            width: 100%;
            aspect-ratio: 16/11;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin-bottom: 16px;
        }
        .hero-whitepaper-card .wp-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: #fff;
            background: var(--color-accent);
            padding: 4px 12px;
            border-radius: var(--radius-xl);
            margin-bottom: 10px;
        }
        .hero-whitepaper-card .wp-title {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-primary);
            margin-bottom: 6px;
        }
        .hero-whitepaper-card .wp-meta {
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }
        .hero-stats-row {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            margin-top: 8px;
        }
        .hero-stat-item {
            text-align: left;
        }
        .hero-stat-item .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-accent);
            letter-spacing: 0.02em;
        }
        .hero-stat-item .stat-label {
            font-size: 0.82rem;
            color: var(--color-text-muted);
        }
        @media (max-width: 768px) {
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content .hero-desc {
                font-size: 0.95rem;
            }
            .hero-whitepaper-card {
                max-width: 100%;
            }
        }

        /* ============ CARDS & COMPONENTS ============ */
        .card-default {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
        }
        .card-default:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 16px;
            background: rgba(200, 150, 62, 0.1);
            color: var(--color-accent);
        }
        .card-title {
            font-weight: 700;
            font-size: 1.08rem;
            color: var(--color-primary);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .card-desc {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        @media (max-width: 1024px) {
            .grid-3,
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-2 {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 640px) {
            .grid-3,
            .grid-4,
            .grid-2 {
                grid-template-columns: 1fr;
            }
        }

        /* ============ SUCCESS DATA BAR ============ */
        .data-bar-section {
            background: var(--color-bg-dark);
            color: var(--color-text-inverse);
            padding: var(--spacing-xl) 0;
        }
        .data-bar-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        @media (max-width: 768px) {
            .data-bar-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }
        .data-bar-item .data-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-accent-glow);
            letter-spacing: 0.03em;
            line-height: 1.1;
        }
        .data-bar-item .data-label {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
            letter-spacing: 0.04em;
        }

        /* ============ FORM SECTION ============ */
        .form-section {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 40px;
            margin: 0 auto;
            max-width: 700px;
            border: 1px solid var(--color-border-light);
        }
        .form-section .form-title {
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--color-primary);
            margin-bottom: 6px;
            text-align: center;
        }
        .form-section .form-subtitle {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            text-align: center;
            margin-bottom: 24px;
        }
        .form-row {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .form-row input {
            flex: 1;
            min-width: 180px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            border: 1.5px solid var(--color-border);
            background: var(--color-bg);
            font-size: 0.95rem;
        }
        .form-consent {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-bottom: 16px;
        }
        .form-consent input[type="checkbox"] {
            margin-top: 3px;
            accent-color: var(--color-accent);
        }
        .btn-submit {
            width: 100%;
            padding: 14px;
            border-radius: var(--radius-xl);
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.04em;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-accent);
        }
        .btn-submit:hover {
            background: var(--color-accent-light);
            box-shadow: 0 8px 28px rgba(200, 150, 62, 0.4);
        }

        /* ============ NEWS LIST ============ */
        .news-list-item {
            display: flex;
            gap: 18px;
            padding: 18px 0;
            border-bottom: 1px solid var(--color-border-light);
            align-items: flex-start;
            transition: all var(--transition-fast);
        }
        .news-list-item:hover {
            background: rgba(0, 0, 0, 0.015);
            padding-left: 8px;
            border-radius: var(--radius-sm);
        }
        .news-date {
            flex-shrink: 0;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            font-weight: 500;
            min-width: 70px;
            padding-top: 2px;
        }
        .news-content h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
        }
        .news-content p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .news-content .read-more {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .news-content .read-more:hover {
            color: var(--color-accent-light);
        }
        .news-sidebar {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
        }
        .news-sidebar h4 {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-primary);
            margin-bottom: 14px;
        }
        .news-sidebar ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .news-sidebar ul li {
            padding: 8px 0;
            border-bottom: 1px solid var(--color-border-light);
            font-size: 0.88rem;
        }
        .news-sidebar ul li a {
            color: var(--color-text-soft);
            transition: color var(--transition-fast);
        }
        .news-sidebar ul li a:hover {
            color: var(--color-accent);
        }

        /* ============ FAQ ACCORDION ============ */
        .faq-accordion .accordion-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            background: #fff;
            transition: box-shadow var(--transition-base);
        }
        .faq-accordion .accordion-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-accordion .accordion-header {
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition-fast);
        }
        .faq-accordion .accordion-header:hover {
            background: var(--color-bg);
        }
        .faq-accordion .accordion-header .faq-icon {
            transition: transform var(--transition-base);
            font-size: 0.75rem;
            color: var(--color-accent);
        }
        .faq-accordion .accordion-item.open .accordion-header .faq-icon {
            transform: rotate(180deg);
        }
        .faq-accordion .accordion-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 22px;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }
        .faq-accordion .accordion-item.open .accordion-body {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* ============ HOT LIST ============ */
        .hot-list-numbered {
            list-style: none;
            padding: 0;
            margin: 0;
            counter-reset: hot-counter;
        }
        .hot-list-numbered li {
            counter-increment: hot-counter;
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: #fff;
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .hot-list-numbered li:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
            border-color: transparent;
        }
        .hot-list-numbered li::before {
            content: counter(hot-counter);
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--color-accent);
            min-width: 36px;
            text-align: center;
            flex-shrink: 0;
        }
        .hot-list-numbered .hot-info {
            flex: 1;
        }
        .hot-list-numbered .hot-info .hot-name {
            font-weight: 600;
            color: var(--color-primary);
            font-size: 0.95rem;
        }
        .hot-list-numbered .hot-info .hot-desc {
            font-size: 0.82rem;
            color: var(--color-text-muted);
        }
        .hot-list-numbered .btn-sm {
            flex-shrink: 0;
            padding: 7px 16px;
            border-radius: var(--radius-xl);
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--color-accent);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-decoration: none;
        }
        .hot-list-numbered .btn-sm:hover {
            background: var(--color-accent-light);
            color: #fff;
        }

        /* ============ REVIEW CARDS ============ */
        .review-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            position: relative;
        }
        .review-card .review-stars {
            color: var(--color-accent);
            font-size: 0.9rem;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }
        .review-card .review-text {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            margin-bottom: 12px;
            font-style: italic;
        }
        .review-card .review-author {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-primary);
        }

        /* ============ PRIVACY SECTION ============ */
        .privacy-notice {
            background: var(--color-bg-alt);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            border: 1px solid var(--color-border);
        }
        .privacy-notice h4 {
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
            font-size: 0.88rem;
            line-height: 1.8;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: var(--spacing-lg);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-glow);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: var(--color-accent-glow);
        }
        .footer-logo-text {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.2rem;
            color: #fff;
            letter-spacing: 0.04em;
        }

        /* ============ UTILITY ============ */
        .text-center {
            text-align: center;
        }
        .mb-1 {
            margin-bottom: var(--spacing-sm);
        }
        .mb-2 {
            margin-bottom: var(--spacing-md);
        }
        .mb-3 {
            margin-bottom: var(--spacing-lg);
        }
        .mb-4 {
            margin-bottom: var(--spacing-xl);
        }
        .mt-2 {
            margin-top: var(--spacing-md);
        }
        .mt-3 {
            margin-top: var(--spacing-lg);
        }
        .bg-alt {
            background: var(--color-bg-alt);
        }
        .bg-white {
            background: #fff;
        }
        .divider {
            height: 1px;
            background: var(--color-border-light);
            margin: var(--spacing-lg) 0;
        }
        .tag-chip {
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-xl);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            background: rgba(200, 150, 62, 0.1);
            color: var(--color-accent);
            margin: 3px;
        }
        .fade-in-up {
            animation: fadeInUp 0.7s ease forwards;
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        @media (prefers-reduced-motion: reduce) {
            .fade-in-up {
                animation: none;
                opacity: 1;
                transform: none;
            }
            .floating-cta {
                animation: none;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #1a1a2e;
            --color-primary-light: #252540;
            --color-accent: #c8963e;
            --color-accent-light: #d4a843;
            --color-accent-glow: #e8c97a;
            --color-bg: #fafaf8;
            --color-bg-alt: #f3f1ec;
            --color-bg-dark: #1a1a2e;
            --color-surface: #ffffff;
            --color-text: #1f1f1f;
            --color-text-soft: #5a5a5a;
            --color-text-muted: #8a8a8a;
            --color-text-inverse: #f5f5f0;
            --color-border: #e4e1da;
            --color-border-light: #efede8;
            --color-success: #2d8c5a;
            --color-warning: #d4902a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 22px;
            --radius-2xl: 28px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 18px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 14px 48px rgba(0, 0, 0, 0.14);
            --shadow-accent: 0 4px 20px rgba(200, 150, 62, 0.25);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
            --spacing-xs: 6px;
            --spacing-sm: 14px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-2xl: 80px;
            --spacing-3xl: 100px;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        .button {
            cursor: pointer;
            font-family: var(--font-sans);
            transition: all var(--transition-base);
            border: none;
            outline: none;
        }

        button:focus-visible,
        .button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }

        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        input:focus,
        select:focus,
        textarea:focus {
            outline: none;
            border-color: var(--color-accent) !important;
            box-shadow: 0 0 0 3px rgba(200, 150, 62, 0.12) !important;
        }

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 20px;
        }

        .header-logo {
            font-family: var(--font-display);
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }

        .header-logo:hover {
            color: var(--color-accent);
        }

        .header-logo .logo-accent {
            color: var(--color-accent);
        }

        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            background: var(--color-bg-alt);
            border-radius: var(--radius-xl);
            padding: 4px 6px;
        }

        .nav-tab {
            display: inline-block;
            padding: 8px 18px;
            border-radius: var(--radius-xl);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            text-decoration: none;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .nav-tab:hover {
            color: var(--color-primary);
            background: rgba(200, 150, 62, 0.08);
        }

        .nav-tab.active {
            background: var(--color-primary);
            color: #ffffff;
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }

        .nav-tab.active:hover {
            color: #ffffff;
            background: var(--color-primary-light);
        }

        .mobile-nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-nav-toggle:hover {
            background: var(--color-bg-alt);
        }

        /* ============ HERO SECTION ============ */
        .hero-section {
            position: relative;
            background: var(--color-bg-dark);
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(212, 168, 67, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content h1 {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--color-text-inverse);
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: 0.03em;
        }

        .hero-content h1 .highlight {
            color: var(--color-accent-glow);
            position: relative;
        }

        .hero-content .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(245, 245, 240, 0.75);
            margin-bottom: 30px;
            line-height: 1.6;
            max-width: 480px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: var(--color-accent);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-xl);
            text-decoration: none;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-accent);
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: var(--color-accent-light);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(200, 150, 62, 0.35);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: transparent;
            color: #f5f5f0;
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: var(--radius-xl);
            text-decoration: none;
            border: 2px solid rgba(245, 245, 240, 0.35);
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }

        .btn-outline-light:hover {
            border-color: var(--color-accent-glow);
            color: var(--color-accent-glow);
            background: rgba(200, 150, 62, 0.06);
        }

        .hero-demo {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-xl);
            padding: 28px 24px;
            backdrop-filter: blur(4px);
        }

        .demo-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
            padding-bottom: 14px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .demo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-accent);
            box-shadow: 0 0 10px rgba(200, 150, 62, 0.6);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 8px rgba(200, 150, 62, 0.5);
            }
            50% {
                box-shadow: 0 0 20px rgba(200, 150, 62, 0.9);
            }
        }

        .demo-label {
            color: rgba(245, 245, 240, 0.7);
            font-size: 0.85rem;
            letter-spacing: 0.04em;
        }

        .demo-grid-numbers {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 8px;
            margin-bottom: 16px;
        }

        .demo-ball {
            aspect-ratio: 1;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            color: #fff;
            transition: all var(--transition-base);
            border: 2px solid transparent;
        }

        .demo-ball.hot {
            background: rgba(200, 150, 62, 0.35);
            border-color: var(--color-accent);
            color: var(--color-accent-glow);
            box-shadow: 0 0 12px rgba(200, 150, 62, 0.3);
        }

        .demo-ball.warm {
            background: rgba(212, 168, 67, 0.2);
            border-color: rgba(212, 168, 67, 0.5);
            color: #e8c97a;
        }

        .demo-insight {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .demo-stat {
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-md);
            padding: 12px 16px;
            flex: 1;
            min-width: 90px;
            text-align: center;
        }

        .demo-stat .stat-val {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-accent-glow);
        }

        .demo-stat .stat-lbl {
            font-size: 0.75rem;
            color: rgba(245, 245, 240, 0.5);
            margin-top: 2px;
        }

        /* ============ SECTION TITLES ============ */
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-heading {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 14px;
            line-height: 1.3;
            letter-spacing: 0.02em;
        }

        .section-subheading {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            margin-bottom: 10px;
            line-height: 1.6;
            max-width: 600px;
        }

        /* ============ VALUE PROPOSITION ============ */
        .value-section {
            padding: var(--spacing-2xl) 0;
            background: var(--color-surface);
        }

        .value-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .value-image-wrap {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .value-image-wrap img {
            width: 100%;
            height: auto;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .value-image-wrap:hover img {
            transform: scale(1.03);
        }

        .value-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .value-list li {
            display: flex;
            gap: 14px;
            padding: 16px 0;
            border-bottom: 1px solid var(--color-border-light);
            align-items: flex-start;
            transition: all var(--transition-fast);
        }

        .value-list li:last-child {
            border-bottom: none;
        }

        .value-list li:hover {
            padding-left: 6px;
        }

        .value-icon-circle {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--color-accent);
            font-size: 1.1rem;
            transition: all var(--transition-base);
        }

        .value-list li:hover .value-icon-circle {
            background: var(--color-accent);
            color: #fff;
        }

        .value-item-title {
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 2px;
            font-size: 0.95rem;
        }

        .value-item-desc {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.5;
        }

        /* ============ SKILL CATEGORIES ============ */
        .skills-section {
            padding: var(--spacing-2xl) 0;
            background: var(--color-bg-alt);
        }

        .skills-masonry {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .skill-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
            cursor: default;
        }

        .skill-card::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 100px;
            height: 100px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            transition: all var(--transition-slow);
            pointer-events: none;
        }

        .skill-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .skill-card:hover::after {
            width: 160px;
            height: 160px;
            top: -60px;
            right: -60px;
        }

        .skill-card .skill-icon {
            font-size: 2rem;
            color: var(--color-accent);
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .skill-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }

        .skill-card p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            margin: 0;
            position: relative;
            z-index: 1;
        }

        .skill-tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--color-bg-alt);
            border-radius: 20px;
            font-size: 0.75rem;
            color: var(--color-accent);
            font-weight: 500;
            margin-top: 12px;
            position: relative;
            z-index: 1;
            letter-spacing: 0.03em;
        }

        /* ============ SCENARIOS ============ */
        .scenarios-section {
            padding: var(--spacing-2xl) 0;
            background: var(--color-surface);
        }

        .scenario-timeline {
            position: relative;
            padding-left: 40px;
        }

        .scenario-timeline::before {
            content: '';
            position: absolute;
            left: 18px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--color-accent), var(--color-border-light), var(--color-accent));
            border-radius: 1px;
        }

        .scenario-item {
            position: relative;
            margin-bottom: 36px;
            padding: 22px 28px;
            background: var(--color-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }

        .scenario-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .scenario-item::before {
            content: '';
            position: absolute;
            left: -32px;
            top: 28px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--color-accent);
            border: 3px solid var(--color-surface);
            box-shadow: 0 0 0 3px var(--color-accent);
            z-index: 2;
        }

        .scenario-item:last-child {
            margin-bottom: 0;
        }

        .scenario-item h4 {
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
            font-size: 1rem;
        }

        .scenario-item p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.6;
        }

        .scenario-badge {
            display: inline-block;
            padding: 3px 10px;
            background: var(--color-accent);
            color: #fff;
            border-radius: 14px;
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 8px;
        }

        /* ============ DATA SECTION ============ */
        .data-section {
            padding: var(--spacing-2xl) 0;
            background: var(--color-bg-dark);
            color: var(--color-text-inverse);
            position: relative;
            overflow: hidden;
        }

        .data-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: 30%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .data-section .section-heading {
            color: #f5f5f0;
        }

        .data-section .section-subheading {
            color: rgba(245, 245, 240, 0.7);
        }

        .data-stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 30px;
            position: relative;
            z-index: 1;
        }

        .data-stat-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            transition: all var(--transition-base);
        }

        .data-stat-card:hover {
            background: rgba(255, 255, 255, 0.09);
            transform: translateY(-4px);
            border-color: rgba(200, 150, 62, 0.3);
        }

        .data-stat-card .big-number {
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--color-accent-glow);
            line-height: 1;
            margin-bottom: 6px;
        }

        .data-stat-card .stat-desc {
            font-size: 0.85rem;
            color: rgba(245, 245, 240, 0.6);
        }

        /* ============ TESTIMONIALS ============ */
        .testimonials-section {
            padding: var(--spacing-2xl) 0;
            background: var(--color-bg-alt);
        }

        .testimonial-carousel {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .testimonial-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            position: relative;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .testimonial-card .quote-mark {
            font-size: 3rem;
            color: var(--color-accent);
            opacity: 0.3;
            line-height: 1;
            position: absolute;
            top: 14px;
            left: 18px;
            font-family: Georgia, serif;
        }

        .testimonial-card .quote-text {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            margin-bottom: 16px;
            padding-top: 10px;
            position: relative;
            z-index: 1;
        }

        .testimonial-card .quote-author {
            font-weight: 600;
            color: var(--color-primary);
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .testimonial-card .quote-author .avatar-dot {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--color-accent);
            flex-shrink: 0;
        }

        /* ============ PROCESS SECTION ============ */
        .process-section {
            padding: var(--spacing-2xl) 0;
            background: var(--color-surface);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }

        .process-step {
            text-align: center;
            padding: 24px 16px;
            position: relative;
            transition: all var(--transition-base);
        }

        .process-step:hover {
            transform: translateY(-4px);
        }

        .process-step .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .process-step:hover .step-number {
            background: var(--color-accent);
            box-shadow: var(--shadow-accent);
        }

        .process-step h4 {
            font-weight: 700;
            color: var(--color-primary);
            font-size: 0.95rem;
            margin-bottom: 6px;
        }

        .process-step p {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            line-height: 1.5;
            margin: 0;
        }

        .process-connector {
            display: none;
        }

        /* ============ FAQ ============ */
        .faq-section {
            padding: var(--spacing-2xl) 0;
            background: var(--color-bg-alt);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
            font-size: 0.95rem;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-question:hover {
            color: var(--color-accent);
        }

        .faq-question .faq-icon {
            font-size: 0.8rem;
            transition: transform var(--transition-base);
            flex-shrink: 0;
            color: var(--color-accent);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px 22px;
        }

        .faq-answer p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            margin: 0;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            padding: var(--spacing-2xl) 0;
            background: var(--color-bg-dark);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translate(-50%, 0);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.12) 0%, transparent 60%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .section-heading {
            color: #f5f5f0;
            position: relative;
            z-index: 1;
        }

        .cta-section .section-subheading {
            color: rgba(245, 245, 240, 0.7);
            margin: 0 auto 30px;
            max-width: 550px;
            position: relative;
            z-index: 1;
        }

        .cta-btn-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 15px 36px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-xl);
            text-decoration: none;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-accent);
            letter-spacing: 0.03em;
            position: relative;
            z-index: 1;
        }

        .cta-btn-large:hover {
            background: var(--color-accent-light);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(200, 150, 62, 0.4);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 28px;
            font-size: 0.88rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 30px;
        }

        .footer-logo-text {
            font-family: var(--font-display);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color var(--transition-fast);
            font-size: 0.84rem;
        }

        .footer-col ul li a:hover {
            color: var(--color-accent-glow);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding-top: 22px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--color-accent-glow);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .skills-masonry {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-carousel {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .value-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-tabs {
                gap: 2px;
            }
            .nav-tab {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            .hero-content h1 {
                font-size: 1.8rem;
            }
            .hero-section {
                padding: var(--spacing-xl) 0 var(--spacing-lg);
                min-height: auto;
            }
            .skills-masonry {
                grid-template-columns: 1fr;
            }
            .data-stats-row {
                grid-template-columns: 1fr 1fr;
            }
            .testimonial-carousel {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
            }
            .scenario-timeline {
                padding-left: 28px;
            }
            .scenario-item::before {
                left: -22px;
                width: 10px;
                height: 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .section-heading {
                font-size: 1.5rem;
            }
            .nav-tabs {
                display: none;
            }
            .mobile-nav-toggle {
                display: block;
            }
            .nav-tabs.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                border-radius: 0;
                padding: 12px;
                box-shadow: var(--shadow-lg);
                gap: 2px;
                z-index: 999;
            }
            .nav-tabs.mobile-open .nav-tab {
                display: block;
                width: 100%;
                text-align: center;
                padding: 10px;
                border-radius: var(--radius-md);
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .data-stats-row {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .demo-grid-numbers {
                grid-template-columns: repeat(5, 1fr);
                gap: 5px;
            }
            .demo-ball {
                font-size: 0.7rem;
            }
            .container-custom {
                padding-left: 12px;
                padding-right: 12px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a1a2e;
            --color-primary-light: #252540;
            --color-accent: #c8963e;
            --color-accent-light: #d4a843;
            --color-accent-glow: #e8c97a;
            --color-bg: #fafaf8;
            --color-bg-alt: #f3f1ec;
            --color-bg-dark: #1a1a2e;
            --color-surface: #ffffff;
            --color-text: #1f1f1f;
            --color-text-soft: #5a5a5a;
            --color-text-muted: #8a8a8a;
            --color-text-inverse: #f5f5f0;
            --color-border: #e4e1da;
            --color-border-light: #efede8;
            --color-success: #2d8c5a;
            --color-warning: #d4902a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 22px;
            --radius-2xl: 28px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 18px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 14px 48px rgba(0, 0, 0, 0.14);
            --shadow-accent: 0 4px 20px rgba(200, 150, 62, 0.25);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
            --spacing-xs: 6px;
            --spacing-sm: 14px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-2xl: 80px;
            --spacing-3xl: 100px;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        .button {
            cursor: pointer;
            font-family: var(--font-sans);
            transition: all var(--transition-base);
            border: none;
            outline: none;
        }
        button:focus-visible,
        .button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }

        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        input:focus,
        select:focus,
        textarea:focus {
            outline: none;
            border-color: var(--color-accent) !important;
            box-shadow: 0 0 0 3px rgba(200, 150, 62, 0.12) !important;
        }

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 20px;
        }
        .header-logo {
            font-family: var(--font-display);
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }
        .header-logo:hover {
            color: var(--color-accent);
        }
        .header-logo .logo-accent {
            color: var(--color-accent);
        }

        /* 分段标签导航 */
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            background: var(--color-bg-alt);
            border-radius: var(--radius-xl);
            padding: 4px 5px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            flex-shrink: 1;
            min-width: 0;
        }
        .nav-tabs::-webkit-scrollbar {
            display: none;
        }
        .nav-tab {
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
            padding: 9px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            border-radius: var(--radius-xl);
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
            flex-shrink: 0;
            position: relative;
            background: transparent;
            text-decoration: none;
        }
        .nav-tab:hover {
            color: var(--color-primary);
            background: rgba(200, 150, 62, 0.08);
            text-decoration: none;
        }
        .nav-tab.active {
            background: var(--color-surface);
            color: var(--color-primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
            text-decoration: none;
        }
        .nav-tab.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }
        .header-cta-btn {
            flex-shrink: 0;
            background: var(--color-accent);
            color: #fff;
            padding: 10px 22px;
            border-radius: var(--radius-xl);
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-base);
            white-space: nowrap;
            text-decoration: none;
            box-shadow: var(--shadow-accent);
        }
        .header-cta-btn:hover {
            background: var(--color-accent-light);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.35);
            text-decoration: none;
        }

        /* 移动端汉堡菜单 */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            cursor: pointer;
            padding: 6px;
            flex-shrink: 0;
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            z-index: 999;
            padding: 20px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }
        .mobile-nav-overlay.is-open {
            display: flex;
        }
        .mobile-nav-overlay .nav-tab {
            font-size: 1.05rem;
            padding: 14px 20px;
            border-radius: var(--radius-md);
            width: 100%;
            justify-content: center;
        }

        /* ============ MAIN LAYOUT ============ */
        main {
            min-height: 60vh;
        }

        /* ============ HERO BANNER (矮横幅) ============ */
        .hero-banner {
            position: relative;
            background: linear-gradient(135deg, #fafaf8 0%, #f3f1ec 40%, #ede8dc 100%);
            padding: 50px 0 44px;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border-light);
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.10) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-banner-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: 36px;
            flex-wrap: wrap;
        }
        .hero-banner-text {
            flex: 1 1 420px;
            min-width: 280px;
        }
        .hero-banner-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 5px 14px;
            border-radius: var(--radius-xl);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            margin-bottom: 14px;
        }
        .hero-banner h1 {
            font-family: var(--font-display);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
            margin: 0 0 12px;
            letter-spacing: 0.03em;
        }
        .hero-banner .hero-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            margin: 0 0 20px;
            max-width: 560px;
        }
        .hero-banner-stats {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--color-text-soft);
        }
        .hero-stat-item strong {
            font-size: 1.35rem;
            color: var(--color-accent);
            font-weight: 700;
        }
        .hero-banner-visual {
            flex: 0 0 260px;
            min-width: 200px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            transition: transform var(--transition-slow);
        }
        .hero-banner-visual:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
        }
        .hero-banner-visual img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-lg);
        }

        /* ============ SECTION COMMON ============ */
        .section-block {
            padding: var(--spacing-xl) 0;
        }
        .section-block-alt {
            background: var(--color-bg-alt);
            padding: var(--spacing-xl) 0;
        }
        .section-block-dark {
            background: var(--color-bg-dark);
            padding: var(--spacing-xl) 0;
            color: var(--color-text-inverse);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-family: var(--font-display);
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 10px;
            letter-spacing: 0.02em;
            line-height: 1.35;
        }
        .section-dark .section-title {
            color: var(--color-text-inverse);
        }
        .section-desc {
            font-size: 1rem;
            color: var(--color-text-soft);
            max-width: 640px;
            margin: 0 0 28px;
            line-height: 1.65;
        }
        .section-dark .section-desc {
            color: rgba(245, 245, 240, 0.7);
        }

        /* ============ CARDS ============ */
        .card-custom {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card-custom .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(200, 150, 62, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--color-accent);
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .card-custom h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 8px;
            letter-spacing: 0.02em;
        }
        .card-custom p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.6;
            flex-grow: 1;
        }
        .card-custom .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-accent);
            margin-top: 14px;
            transition: gap var(--transition-fast);
            text-decoration: none;
        }
        .card-custom .card-link:hover {
            gap: 10px;
            color: var(--color-accent-light);
            text-decoration: none;
        }
        .card-custom .card-link i {
            font-size: 0.75rem;
        }

        /* 特色卡片（深色） */
        .card-feature-dark {
            background: var(--color-primary-light);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition-base);
            height: 100%;
            text-align: center;
        }
        .card-feature-dark:hover {
            border-color: rgba(200, 150, 62, 0.3);
            box-shadow: var(--shadow-accent);
            transform: translateY(-3px);
        }
        .card-feature-dark .feature-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
            margin-bottom: 8px;
            letter-spacing: -0.03em;
        }
        .card-feature-dark h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-inverse);
            margin: 0 0 6px;
        }
        .card-feature-dark p {
            font-size: 0.85rem;
            color: rgba(245, 245, 240, 0.6);
            margin: 0;
            line-height: 1.5;
        }

        /* ============ 流程/步骤 ============ */
        .step-list {
            list-style: none;
            margin: 0;
            padding: 0;
            counter-reset: step-counter;
        }
        .step-list li {
            counter-increment: step-counter;
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 20px 0;
            border-bottom: 1px solid var(--color-border-light);
            position: relative;
        }
        .step-list li:last-child {
            border-bottom: none;
        }
        .step-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: var(--shadow-accent);
        }
        .step-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 4px;
        }
        .step-content p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.5;
        }

        /* ============ 场景卡片 ============ */
        .scenario-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .scenario-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .scenario-card-body {
            padding: 20px 18px;
        }
        .scenario-card-body h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 6px;
        }
        .scenario-card-body p {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.5;
        }

        /* ============ 数据展示条 ============ */
        .data-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            padding: 24px 0;
        }
        .data-strip-item {
            flex: 0 0 auto;
            min-width: 130px;
            text-align: center;
            padding: 18px 24px;
            background: var(--color-surface);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .data-strip-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-accent);
        }
        .data-strip-item .data-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
            letter-spacing: -0.02em;
        }
        .data-strip-item .data-label {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        /* ============ 价格/套餐卡片 ============ */
        .pricing-card {
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
            text-align: center;
            position: relative;
        }
        .pricing-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .pricing-card.featured {
            border: 2px solid var(--color-accent);
            box-shadow: var(--shadow-accent);
            transform: scale(1.03);
        }
        .pricing-card.featured:hover {
            transform: scale(1.03) translateY(-4px);
        }
        .pricing-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-accent);
            color: #fff;
            padding: 5px 16px;
            border-radius: var(--radius-xl);
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            white-space: nowrap;
        }
        .pricing-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 8px;
        }
        .pricing-card .price {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-accent);
            margin: 0 0 4px;
            letter-spacing: -0.03em;
        }
        .pricing-card .price-sub {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-bottom: 18px;
        }
        .pricing-features {
            list-style: none;
            margin: 0 0 20px;
            padding: 0;
            text-align: left;
        }
        .pricing-features li {
            padding: 6px 0;
            font-size: 0.85rem;
            color: var(--color-text-soft);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .pricing-features li i {
            color: var(--color-success);
            font-size: 0.8rem;
        }
        .pricing-btn {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 11px 28px;
            border-radius: var(--radius-xl);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-base);
            text-decoration: none;
            box-shadow: var(--shadow-accent);
        }
        .pricing-btn:hover {
            background: var(--color-accent-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(200, 150, 62, 0.35);
            text-decoration: none;
        }

        /* ============ FAQ ============ */
        .faq-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: 0;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 18px 0;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
            font-family: var(--font-sans);
            letter-spacing: 0.02em;
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--color-accent);
            transition: all var(--transition-base);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0;
        }
        .faq-item.is-open .faq-answer {
            max-height: 300px;
            padding: 0 0 16px;
        }
        .faq-item.is-open .faq-icon {
            transform: rotate(45deg);
            background: var(--color-accent);
            color: #fff;
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.65;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #1e1e38 100%);
            padding: 56px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            font-family: var(--font-display);
            font-size: 1.7rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(245, 245, 240, 0.7);
            margin: 0 0 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-btn-large {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 14px 36px;
            border-radius: var(--radius-xl);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.04em;
            transition: all var(--transition-base);
            text-decoration: none;
            box-shadow: var(--shadow-accent);
            position: relative;
            z-index: 1;
        }
        .cta-btn-large:hover {
            background: var(--color-accent-light);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 10px 34px rgba(200, 150, 62, 0.4);
            text-decoration: none;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-inverse);
            padding: 48px 0 20px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 7px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-glow);
            text-decoration: none;
        }
        .footer-logo-text {
            font-family: var(--font-display);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.8rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: var(--color-accent-glow);
            text-decoration: none;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .hero-banner h1 {
                font-size: 1.8rem;
            }
            .hero-banner-visual {
                flex: 0 0 200px;
                min-width: 160px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .nav-tab {
                padding: 8px 13px;
                font-size: 0.82rem;
            }
            .header-cta-btn {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
        }
        @media (max-width: 768px) {
            .nav-tabs {
                display: none;
            }
            .header-cta-btn {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .hero-banner {
                padding: 36px 0 32px;
            }
            .hero-banner-inner {
                flex-direction: column;
                gap: 20px;
            }
            .hero-banner h1 {
                font-size: 1.5rem;
            }
            .hero-banner-visual {
                flex: 0 0 auto;
                width: 100%;
                max-width: 320px;
            }
            .hero-banner-stats {
                gap: 12px;
            }
            .section-block,
            .section-block-alt,
            .section-block-dark {
                padding: var(--spacing-lg) 0;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .pricing-card.featured {
                transform: scale(1);
            }
            .pricing-card.featured:hover {
                transform: scale(1) translateY(-4px);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .data-strip {
                gap: 10px;
            }
            .data-strip-item {
                min-width: 100px;
                padding: 14px 16px;
            }
            .data-strip-item .data-value {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .hero-banner h1 {
                font-size: 1.3rem;
            }
            .hero-banner .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-banner-stats {
                flex-direction: column;
                gap: 8px;
            }
            .section-title {
                font-size: 1.15rem;
            }
            .card-custom {
                padding: 20px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .container-custom {
                padding-left: 12px;
                padding-right: 12px;
            }
            .step-list li {
                gap: 12px;
                padding: 14px 0;
            }
            .step-number {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #1a1a2e;
            --color-primary-light: #252540;
            --color-accent: #c8963e;
            --color-accent-light: #d4a843;
            --color-accent-glow: #e8c97a;
            --color-bg: #fafaf8;
            --color-bg-alt: #f3f1ec;
            --color-bg-dark: #1a1a2e;
            --color-surface: #ffffff;
            --color-text: #1f1f1f;
            --color-text-soft: #5a5a5a;
            --color-text-muted: #8a8a8a;
            --color-text-inverse: #f5f5f0;
            --color-border: #e4e1da;
            --color-border-light: #efede8;
            --color-success: #2d8c5a;
            --color-warning: #d4902a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 22px;
            --radius-2xl: 28px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 18px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 14px 48px rgba(0, 0, 0, 0.14);
            --shadow-accent: 0 4px 20px rgba(200, 150, 62, 0.25);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
            --spacing-xs: 6px;
            --spacing-sm: 14px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-2xl: 80px;
            --spacing-3xl: 100px;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        .button {
            cursor: pointer;
            font-family: var(--font-sans);
            transition: all var(--transition-base);
            border: none;
            outline: none;
        }

        button:focus-visible,
        .button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }

        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        input:focus,
        select:focus,
        textarea:focus {
            outline: none;
            border-color: var(--color-accent) !important;
            box-shadow: 0 0 0 3px rgba(200, 150, 62, 0.12) !important;
        }

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 20px;
        }

        .header-logo {
            font-family: var(--font-display);
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }

        .header-logo:hover {
            color: var(--color-accent);
        }

        .header-logo .logo-accent {
            color: var(--color-accent);
        }

        /* 分段标签导航 */
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            background: var(--color-bg-alt);
            border-radius: var(--radius-xl);
            padding: 5px 6px;
            border: 1px solid var(--color-border-light);
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-lg);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            text-decoration: none;
            white-space: nowrap;
            transition: all var(--transition-base);
            position: relative;
            letter-spacing: 0.02em;
        }

        .nav-tab:hover {
            color: var(--color-primary);
            background: rgba(255, 255, 255, 0.6);
        }

        .nav-tab.active {
            background: var(--color-surface);
            color: var(--color-primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
        }

        .nav-tab.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }

        .header-cta {
            flex-shrink: 0;
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            border-radius: var(--radius-xl);
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-accent);
            white-space: nowrap;
        }

        .btn-accent:hover {
            background: var(--color-accent-light);
            color: #fff;
            box-shadow: 0 6px 28px rgba(200, 150, 62, 0.35);
            transform: translateY(-1px);
        }

        .btn-accent:active {
            transform: translateY(0);
            box-shadow: var(--shadow-accent);
        }

        /* 移动端汉堡菜单 */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            cursor: pointer;
            padding: 6px;
            line-height: 1;
        }

        /* ============ HERO SECTION ============ */
        .hero-section {
            position: relative;
            background: var(--color-bg-dark);
            background-image: linear-gradient(160deg, rgba(26, 26, 46, 0.92) 0%, rgba(37, 37, 64, 0.88) 40%, rgba(26, 26, 46, 0.94) 100%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 580px;
            display: flex;
            align-items: center;
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -120px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -100px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(212, 168, 67, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content h1 {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--color-text-inverse);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .hero-content h1 .highlight {
            color: var(--color-accent-glow);
            position: relative;
        }

        .hero-content .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(245, 245, 240, 0.78);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            border: 2px solid rgba(255, 255, 255, 0.55);
            color: #fff;
            font-weight: 500;
            border-radius: var(--radius-xl);
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-base);
            background: transparent;
        }

        .btn-outline-light:hover {
            border-color: var(--color-accent-glow);
            color: var(--color-accent-glow);
            background: rgba(200, 150, 62, 0.08);
        }

        /* 进度环区域 */
        .hero-visual {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }

        .progress-ring-wrapper {
            position: relative;
            width: 200px;
            height: 200px;
        }

        .progress-ring {
            transform: rotate(-90deg);
            width: 200px;
            height: 200px;
        }

        .progress-ring .bg-circle {
            fill: none;
            stroke: rgba(255, 255, 255, 0.12);
            stroke-width: 10;
        }

        .progress-ring .fg-circle {
            fill: none;
            stroke: var(--color-accent);
            stroke-width: 10;
            stroke-linecap: round;
            stroke-dasharray: 565.48;
            stroke-dashoffset: 113.1;
            transition: stroke-dashoffset 1.2s cubic-bezier(0.22, 0.61, 0.36, 1);
        }

        .progress-center-text {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
            color: #fff;
        }

        .progress-center-text .pct {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--color-accent-glow);
            line-height: 1;
        }

        .progress-center-text .pct-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

        .tier-preview-cards {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .tier-preview-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            text-align: center;
            min-width: 90px;
            color: #fff;
            transition: all var(--transition-base);
            cursor: default;
        }

        .tier-preview-card:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
        }

        .tier-preview-card .tier-name {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent-glow);
            margin-bottom: 4px;
        }

        .tier-preview-card .tier-desc {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.6);
        }

        /* ============ SECTION COMMONS ============ */
        .section-padding {
            padding: var(--spacing-2xl) 0;
        }

        .section-padding-lg {
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
        }

        .section-header {
            text-align: left;
            margin-bottom: var(--spacing-lg);
        }

        .section-header.center {
            text-align: center;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 8px;
            background: rgba(200, 150, 62, 0.08);
            padding: 4px 14px;
            border-radius: 20px;
        }

        .section-header h2 {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 8px 0 10px;
            letter-spacing: 0.02em;
        }

        .section-header .section-desc {
            color: var(--color-text-soft);
            font-size: 1rem;
            max-width: 600px;
            line-height: 1.7;
        }

        .section-header.center .section-desc {
            margin: 0 auto;
        }

        /* ============ VALUE PROPOSITION ============ */
        .value-props-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .value-prop-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .value-prop-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--color-accent);
            border-radius: 0 3px 3px 0;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .value-prop-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-border);
        }

        .value-prop-card:hover::before {
            opacity: 1;
        }

        .value-prop-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(200, 150, 62, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--color-accent);
            margin-bottom: 16px;
        }

        .value-prop-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .value-prop-card p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            margin: 0;
        }

        /* ============ FEATURE GROUPING ============ */
        .feature-group-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: var(--color-surface);
            border-radius: var(--radius-2xl);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            margin-bottom: 32px;
        }

        .feature-group-block.reverse {
            direction: rtl;
        }

        .feature-group-block.reverse>* {
            direction: ltr;
        }

        .feature-group-image {
            height: 100%;
            min-height: 320px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .feature-group-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .feature-group-content {
            padding: 40px 36px;
        }

        .feature-group-content h3 {
            font-family: var(--font-display);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
        }

        .feature-group-content p {
            color: var(--color-text-soft);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .feature-list li {
            padding: 8px 0;
            padding-left: 24px;
            position: relative;
            color: var(--color-text);
            font-size: 0.95rem;
        }

        .feature-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--color-accent);
            font-weight: 700;
            font-size: 0.85rem;
        }

        /* ============ SCENARIO CARDS ============ */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .scenario-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
            text-align: center;
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: var(--color-border);
        }

        .scenario-card .scenario-img {
            height: 140px;
            background-size: cover;
            background-position: center;
        }

        .scenario-card .scenario-body {
            padding: 18px 14px;
        }

        .scenario-card .scenario-body h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .scenario-card .scenario-body p {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.5;
        }

        .scenario-badge {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            background: rgba(200, 150, 62, 0.12);
            color: var(--color-accent);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 8px;
        }

        /* ============ STATS STRIP ============ */
        .stats-strip {
            background: var(--color-bg-dark);
            padding: var(--spacing-xl) 0;
            position: relative;
            overflow: hidden;
        }

        .stats-strip::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .stat-item .stat-number {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--color-accent-glow);
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-item .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.03em;
        }

        /* ============ CASE / TESTIMONIAL ============ */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .case-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-base);
            position: relative;
        }

        .case-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
        }

        .case-card .case-quote {
            font-size: 1rem;
            color: var(--color-text);
            line-height: 1.7;
            font-style: italic;
            margin-bottom: 16px;
            position: relative;
            padding-left: 20px;
        }

        .case-card .case-quote::before {
            content: '"';
            position: absolute;
            left: 0;
            top: -4px;
            font-size: 2rem;
            color: var(--color-accent);
            font-weight: 700;
            line-height: 1;
            font-style: normal;
        }

        .case-card .case-author {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        .case-card .case-tag {
            display: inline-block;
            font-size: 0.7rem;
            background: rgba(45, 140, 90, 0.1);
            color: var(--color-success);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 10px;
            font-weight: 600;
        }

        /* ============ TIER / PRICING ============ */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }

        .tier-card {
            background: var(--color-surface);
            border: 2px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition-base);
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .tier-card.featured {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-accent);
            transform: scale(1.03);
            z-index: 2;
        }

        .tier-card.featured::before {
            content: '热门推荐';
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 14px;
            letter-spacing: 0.04em;
        }

        .tier-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .tier-card.featured:hover {
            transform: scale(1.03) translateY(-3px);
        }

        .tier-card .tier-icon {
            font-size: 2rem;
            margin-bottom: 12px;
            color: var(--color-accent);
        }

        .tier-card .tier-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .tier-card .tier-price {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-accent);
            margin: 10px 0;
        }

        .tier-card .tier-price span {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            font-weight: 400;
        }

        .tier-card .tier-features {
            list-style: none;
            padding: 0;
            margin: 16px 0 20px;
            text-align: left;
            flex-grow: 1;
        }

        .tier-card .tier-features li {
            padding: 6px 0;
            font-size: 0.85rem;
            color: var(--color-text-soft);
            border-bottom: 1px solid var(--color-border-light);
        }

        .tier-card .tier-features li:last-child {
            border-bottom: none;
        }

        .btn-tier {
            display: block;
            width: 100%;
            padding: 12px;
            border-radius: var(--radius-xl);
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-base);
            text-align: center;
        }

        .btn-tier-primary {
            background: var(--color-accent);
            color: #fff;
            box-shadow: var(--shadow-accent);
        }

        .btn-tier-primary:hover {
            background: var(--color-accent-light);
            color: #fff;
            box-shadow: 0 6px 28px rgba(200, 150, 62, 0.35);
        }

        .btn-tier-outline {
            background: transparent;
            border: 2px solid var(--color-border);
            color: var(--color-primary);
        }

        .btn-tier-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1rem;
            user-select: none;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--color-accent);
        }

        .faq-question .faq-arrow {
            transition: transform var(--transition-base);
            font-size: 0.8rem;
            color: var(--color-text-muted);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--color-accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
            color: var(--color-text-soft);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: var(--color-bg-dark);
            background-image: linear-gradient(150deg, rgba(26, 26, 46, 0.95) 0%, rgba(37, 37, 64, 0.9) 100%), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: var(--spacing-2xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            left: 50%;
            transform: translateX(-50%);
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-family: var(--font-display);
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.05rem;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-accent {
            font-size: 1rem;
            padding: 13px 32px;
            position: relative;
            z-index: 1;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-inverse);
            padding: var(--spacing-xl) 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: var(--spacing-lg);
        }

        .footer-logo-text {
            font-family: var(--font-display);
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--color-accent-glow);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.8rem;
        }

        .footer-bottom a:hover {
            color: var(--color-accent-glow);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
                text-align: center;
            }
            .hero-content .hero-subtitle {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-visual {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
            }
            .value-props-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .tier-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tier-card.featured {
                transform: none;
            }
            .tier-card.featured:hover {
                transform: translateY(-3px);
            }
            .feature-group-block {
                grid-template-columns: 1fr;
            }
            .feature-group-block.reverse {
                direction: ltr;
            }
            .feature-group-image {
                min-height: 220px;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .nav-tabs {
                gap: 2px;
                padding: 4px;
            }
            .nav-tab {
                padding: 7px 12px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                gap: 10px;
            }
            .nav-tabs {
                order: 3;
                width: 100%;
                overflow-x: auto;
                flex-wrap: nowrap;
                justify-content: flex-start;
                border-radius: var(--radius-md);
                padding: 4px;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
            }
            .nav-tabs::-webkit-scrollbar {
                display: none;
            }
            .nav-tab {
                flex-shrink: 0;
                font-size: 0.78rem;
                padding: 7px 13px;
            }
            .header-cta {
                order: 2;
            }
            .header-logo {
                order: 1;
            }
            .mobile-menu-toggle {
                display: block;
                order: 0;
            }
            .hero-section {
                min-height: auto;
                padding: var(--spacing-xl) 0;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .progress-ring-wrapper {
                width: 150px;
                height: 150px;
            }
            .progress-ring {
                width: 150px;
                height: 150px;
            }
            .progress-center-text .pct {
                font-size: 2rem;
            }
            .value-props-grid {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
            .tier-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
                margin: 0 auto;
            }
            .tier-card.featured {
                transform: none;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-content .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .tier-preview-cards {
                flex-direction: column;
                align-items: center;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .section-padding {
                padding: var(--spacing-xl) 0;
            }
            .section-padding-lg {
                padding: var(--spacing-xl) 0;
            }
            .feature-group-content {
                padding: 24px 18px;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
        }

        /* 细节动效 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
        }

        .animate-in-delay-1 {
            animation-delay: 0.1s;
            opacity: 0;
        }
        .animate-in-delay-2 {
            animation-delay: 0.2s;
            opacity: 0;
        }
        .animate-in-delay-3 {
            animation-delay: 0.3s;
            opacity: 0;
        }
        .animate-in-delay-4 {
            animation-delay: 0.4s;
            opacity: 0;
        }

/* roulang page: category6 */
:root {
            --color-primary: #1a1a2e;
            --color-primary-light: #252540;
            --color-accent: #c8963e;
            --color-accent-light: #d4a843;
            --color-accent-glow: #e8c97a;
            --color-bg: #fafaf8;
            --color-bg-alt: #f3f1ec;
            --color-bg-dark: #1a1a2e;
            --color-surface: #ffffff;
            --color-text: #1f1f1f;
            --color-text-soft: #5a5a5a;
            --color-text-muted: #8a8a8a;
            --color-text-inverse: #f5f5f0;
            --color-border: #e4e1da;
            --color-border-light: #efede8;
            --color-success: #2d8c5a;
            --color-warning: #d4902a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 22px;
            --radius-2xl: 28px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 18px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 14px 48px rgba(0, 0, 0, 0.14);
            --shadow-accent: 0 4px 20px rgba(200, 150, 62, 0.25);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
            --spacing-xs: 6px;
            --spacing-sm: 14px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-2xl: 80px;
            --spacing-3xl: 100px;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        .button {
            cursor: pointer;
            font-family: var(--font-sans);
            transition: all var(--transition-base);
            border: none;
            outline: none;
        }

        button:focus-visible,
        .button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }

        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        input:focus,
        select:focus,
        textarea:focus {
            outline: none;
            border-color: var(--color-accent) !important;
            box-shadow: 0 0 0 3px rgba(200, 150, 62, 0.12) !important;
        }

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 20px;
        }

        .header-logo {
            font-family: var(--font-display);
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }

        .header-logo:hover {
            color: var(--color-accent);
        }

        .header-logo .logo-accent {
            color: var(--color-accent);
        }

        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            overflow-x: auto;
            scrollbar-width: thin;
            -ms-overflow-style: none;
        }

        .nav-tabs::-webkit-scrollbar {
            height: 3px;
        }

        .nav-tabs::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 10px;
        }

        .nav-tab {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            border-radius: 20px;
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.02em;
        }

        .nav-tab:hover {
            color: var(--color-accent);
            background: rgba(200, 150, 62, 0.06);
        }

        .nav-tab.active {
            color: var(--color-accent);
            background: rgba(200, 150, 62, 0.12);
            font-weight: 600;
        }

        .nav-cta-btn {
            display: inline-block;
            padding: 9px 20px;
            font-size: 0.88rem;
            font-weight: 600;
            color: #fff;
            background: var(--color-accent);
            border-radius: 20px;
            white-space: nowrap;
            transition: all var(--transition-base);
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .nav-cta-btn:hover {
            background: var(--color-accent-light);
            color: #fff;
            box-shadow: var(--shadow-accent);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            cursor: pointer;
            padding: 6px;
        }

        /* ============ HERO ============ */
        .hero-platform {
            position: relative;
            background: var(--color-bg-dark);
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            padding: 80px 20px 90px;
            text-align: center;
            overflow: hidden;
        }

        .hero-platform::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 26, 46, 0.88) 0%, rgba(26, 26, 46, 0.78) 100%);
            z-index: 1;
        }

        .hero-platform .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
            margin: 0 auto;
        }

        .hero-platform .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(200, 150, 62, 0.2);
            border: 1px solid rgba(200, 150, 62, 0.35);
            color: var(--color-accent-glow);
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
        }

        .hero-platform h1 {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: 0.03em;
            line-height: 1.25;
        }

        .hero-platform .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.78);
            margin: 0 auto 32px;
            max-width: 600px;
            line-height: 1.6;
        }

        .hero-search-wrap {
            display: flex;
            align-items: center;
            max-width: 560px;
            margin: 0 auto 28px;
            background: #fff;
            border-radius: 30px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            transition: box-shadow var(--transition-base);
        }

        .hero-search-wrap:focus-within {
            box-shadow: 0 0 0 4px rgba(200, 150, 62, 0.25), var(--shadow-xl);
        }

        .hero-search-wrap input {
            flex: 1;
            border: none;
            padding: 15px 22px;
            font-size: 1rem;
            background: transparent;
            color: var(--color-text);
            min-width: 0;
        }

        .hero-search-wrap input::placeholder {
            color: var(--color-text-muted);
        }

        .hero-search-wrap .search-btn {
            padding: 15px 24px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: background var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .hero-search-wrap .search-btn:hover {
            background: var(--color-accent-light);
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            position: relative;
            z-index: 2;
        }

        .hero-tag {
            display: inline-block;
            padding: 8px 18px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.22);
            color: rgba(255, 255, 255, 0.9);
            border-radius: 22px;
            font-size: 0.88rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .hero-tag:hover {
            background: rgba(200, 150, 62, 0.25);
            border-color: rgba(200, 150, 62, 0.5);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ============ SECTION COMMON ============ */
        .section-pad {
            padding: 70px 20px;
        }

        .section-pad-sm {
            padding: 50px 20px;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            margin-bottom: 36px;
            max-width: 640px;
            line-height: 1.6;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .text-center {
            text-align: center;
        }

        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ CARDS ============ */
        .platform-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .platform-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: transparent;
            transform: translateY(-3px);
        }

        .platform-card .card-rank {
            position: absolute;
            top: 14px;
            right: 16px;
            font-size: 2.4rem;
            font-weight: 800;
            color: rgba(200, 150, 62, 0.12);
            font-family: var(--font-display);
            line-height: 1;
            pointer-events: none;
        }

        .platform-card .card-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            background: rgba(200, 150, 62, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-accent);
            margin-bottom: 16px;
        }

        .platform-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--color-primary);
            letter-spacing: 0.02em;
        }

        .platform-card .card-desc {
            font-size: 0.92rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            margin: 0;
        }

        .platform-card .card-meta {
            display: flex;
            gap: 16px;
            margin-top: 14px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: var(--color-text-muted);
        }

        .platform-card .card-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .platform-card .card-meta .meta-star {
            color: var(--color-accent);
        }

        .platform-card.featured {
            border-color: var(--color-accent);
            border-width: 2px;
            background: linear-gradient(135deg, #fffdf7 0%, #fff 100%);
        }

        .platform-card.featured::after {
            content: '推荐';
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 12px;
            letter-spacing: 0.04em;
        }

        /* ============ COMPARISON TABLE ============ */
        .compare-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            background: var(--color-surface);
            box-shadow: var(--shadow-sm);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            font-size: 0.93rem;
        }

        .compare-table thead th {
            background: var(--color-bg-dark);
            color: #fff;
            padding: 14px 16px;
            font-weight: 600;
            text-align: center;
            letter-spacing: 0.03em;
            font-size: 0.9rem;
            white-space: nowrap;
        }

        .compare-table thead th:first-child {
            text-align: left;
            border-radius: var(--radius-lg) 0 0 0;
        }

        .compare-table thead th:last-child {
            border-radius: 0 var(--radius-lg) 0 0;
        }

        .compare-table tbody td {
            padding: 13px 16px;
            text-align: center;
            border-bottom: 1px solid var(--color-border-light);
            vertical-align: middle;
        }

        .compare-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--color-primary);
        }

        .compare-table tbody tr:last-child td {
            border-bottom: none;
        }

        .compare-table tbody tr:hover {
            background: rgba(200, 150, 62, 0.03);
        }

        .compare-check {
            color: var(--color-success);
            font-weight: 700;
            font-size: 1.1rem;
        }

        .compare-dash {
            color: var(--color-text-muted);
        }

        .compare-star {
            color: var(--color-accent);
        }

        /* ============ BUTTONS ============ */
        .btn-accent {
            display: inline-block;
            padding: 12px 28px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            border-radius: 24px;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-base);
            text-align: center;
        }

        .btn-accent:hover {
            background: var(--color-accent-light);
            color: #fff;
            box-shadow: var(--shadow-accent);
            transform: translateY(-2px);
        }

        .btn-outline {
            display: inline-block;
            padding: 11px 26px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            border-radius: 24px;
            font-size: 0.93rem;
            letter-spacing: 0.03em;
            border: 2px solid var(--color-border);
            transition: all var(--transition-base);
            text-align: center;
        }

        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(200, 150, 62, 0.04);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.84rem;
            border-radius: 18px;
        }

        /* ============ BADGE / TAG ============ */
        .badge-accent {
            display: inline-block;
            padding: 5px 12px;
            background: rgba(200, 150, 62, 0.12);
            color: var(--color-accent);
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }

        .badge-success {
            display: inline-block;
            padding: 5px 12px;
            background: rgba(45, 140, 90, 0.1);
            color: var(--color-success);
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }

        /* ============ STAT BLOCK ============ */
        .stat-block {
            text-align: center;
            padding: 20px;
        }

        .stat-number {
            font-family: var(--font-display);
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.1;
            letter-spacing: 0.02em;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            margin-top: 6px;
        }

        /* ============ FAQ ============ */
        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: 20px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--color-border-light);
        }

        .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
        }

        .faq-item:hover .faq-question {
            color: var(--color-accent);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--color-accent);
            transition: all var(--transition-fast);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            color: var(--color-text-soft);
            font-size: 0.93rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--color-accent);
            color: #fff;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: var(--color-bg-dark);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 70px 20px;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(26, 26, 46, 0.85);
            z-index: 1;
        }

        .cta-section .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 600px;
            margin: 0 auto;
        }

        .cta-section h2 {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 28px;
            font-size: 1.02rem;
            line-height: 1.6;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-inverse);
            padding: 50px 20px 28px;
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            max-width: var(--max-width);
            margin: 0 auto;
        }

        .footer-logo-text {
            font-family: var(--font-display);
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 6px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }

        .footer-col ul li a:hover {
            color: var(--color-accent-glow);
        }

        .footer-bottom {
            max-width: var(--max-width);
            margin: 32px auto 0;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--color-accent-glow);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .hero-platform h1 {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .section-pad {
                padding: 50px 16px;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .compare-table {
                min-width: 600px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 768px) {
            .nav-tabs {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                gap: 0;
                padding: 10px 0;
                border-bottom: 1px solid var(--color-border-light);
                box-shadow: var(--shadow-md);
                z-index: 999;
            }
            .nav-tabs.open {
                display: flex;
            }
            .nav-tab {
                padding: 12px 20px;
                border-radius: 0;
                font-size: 0.95rem;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-cta-btn {
                font-size: 0.8rem;
                padding: 7px 14px;
            }
            .hero-platform h1 {
                font-size: 1.75rem;
            }
            .hero-platform .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-search-wrap {
                max-width: 100%;
            }
            .hero-search-wrap input {
                padding: 12px 16px;
                font-size: 0.9rem;
            }
            .hero-search-wrap .search-btn {
                padding: 12px 16px;
                font-size: 0.85rem;
            }
            .hero-tags {
                gap: 6px;
            }
            .hero-tag {
                padding: 6px 13px;
                font-size: 0.78rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .section-pad {
                padding: 40px 14px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .platform-card {
                padding: 20px 16px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .compare-table-wrap {
                border-radius: var(--radius-md);
            }
        }

        @media (max-width: 520px) {
            .hero-platform {
                padding: 50px 14px 60px;
            }
            .hero-platform h1 {
                font-size: 1.45rem;
            }
            .hero-platform .hero-subtitle {
                font-size: 0.85rem;
            }
            .hero-tag {
                padding: 5px 10px;
                font-size: 0.72rem;
            }
            .section-pad {
                padding: 32px 12px;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .btn-accent,
            .btn-outline {
                padding: 10px 20px;
                font-size: 0.85rem;
            }
            .platform-card .card-rank {
                font-size: 1.8rem;
                top: 10px;
                right: 10px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #1a1a2e;
            --color-primary-light: #252540;
            --color-accent: #c8963e;
            --color-accent-light: #d4a843;
            --color-accent-glow: #e8c97a;
            --color-bg: #fafaf8;
            --color-bg-alt: #f3f1ec;
            --color-bg-dark: #1a1a2e;
            --color-surface: #ffffff;
            --color-text: #1f1f1f;
            --color-text-soft: #5a5a5a;
            --color-text-muted: #8a8a8a;
            --color-text-inverse: #f5f5f0;
            --color-border: #e4e1da;
            --color-border-light: #efede8;
            --color-success: #2d8c5a;
            --color-warning: #d4902a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 22px;
            --radius-2xl: 28px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 18px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 14px 48px rgba(0, 0, 0, 0.14);
            --shadow-accent: 0 4px 20px rgba(200, 150, 62, 0.25);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
            --spacing-xs: 6px;
            --spacing-sm: 14px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-2xl: 80px;
            --spacing-3xl: 100px;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        .button {
            cursor: pointer;
            font-family: var(--font-sans);
            transition: all var(--transition-base);
            border: none;
            outline: none;
        }
        button:focus-visible,
        .button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }

        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        input:focus,
        select:focus,
        textarea:focus {
            outline: none;
            border-color: var(--color-accent) !important;
            box-shadow: 0 0 0 3px rgba(200, 150, 62, 0.12) !important;
        }

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 20px;
        }
        .header-logo {
            font-family: var(--font-display);
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }
        .header-logo:hover {
            color: var(--color-accent);
        }
        .header-logo .logo-accent {
            color: var(--color-accent);
        }
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            background: var(--color-bg-alt);
            border-radius: var(--radius-xl);
            padding: 5px 6px;
            border: 1px solid var(--color-border-light);
        }
        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-xl);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            white-space: nowrap;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
            position: relative;
        }
        .nav-tab:hover {
            color: var(--color-primary);
            background: rgba(255, 255, 255, 0.6);
        }
        .nav-tab.active {
            background: var(--color-surface);
            color: var(--color-primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }
        .nav-tab.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }
        .header-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            background: var(--color-accent);
            color: #fff;
            border-radius: var(--radius-xl);
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            letter-spacing: 0.03em;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-accent);
            flex-shrink: 0;
        }
        .header-cta-btn:hover {
            background: var(--color-accent-light);
            color: #fff;
            box-shadow: 0 6px 28px rgba(200, 150, 62, 0.35);
            transform: translateY(-1px);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
        }
        .mobile-menu-toggle:hover {
            background: var(--color-bg-alt);
        }

        /* ============ HERO SECTION ============ */
        .hero-section {
            position: relative;
            background: linear-gradient(170deg, #1a1a2e 0%, #1e1e35 40%, #252540 100%);
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(212, 168, 67, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 780px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(200, 150, 62, 0.15);
            border: 1px solid rgba(200, 150, 62, 0.3);
            border-radius: var(--radius-xl);
            color: var(--color-accent-glow);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.05em;
            margin-bottom: var(--spacing-md);
        }
        .hero-title {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 700;
            color: #ffffff;
            line-height: 1.25;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.02em;
        }
        .hero-title .highlight {
            color: var(--color-accent-glow);
        }
        .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: var(--spacing-lg);
            line-height: 1.6;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-search-wrap {
            display: flex;
            max-width: 560px;
            margin: 0 auto var(--spacing-lg);
            background: rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-2xl);
            padding: 5px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(8px);
        }
        .hero-search-input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 14px 20px;
            color: #fff;
            font-size: 1rem;
            border-radius: var(--radius-2xl);
            outline: none;
        }
        .hero-search-input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .hero-search-btn {
            padding: 14px 28px;
            background: var(--color-accent);
            color: #fff;
            border-radius: var(--radius-2xl);
            font-weight: 600;
            font-size: 0.95rem;
            white-space: nowrap;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
        }
        .hero-search-btn:hover {
            background: var(--color-accent-light);
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.4);
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-xl);
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.88rem;
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
        }
        .hero-tag:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.35);
            color: #fff;
            transform: translateY(-2px);
        }
        .hero-tag i {
            margin-right: 6px;
            color: var(--color-accent-glow);
            font-size: 0.8rem;
        }

        /* ============ SECTION COMMON ============ */
        .section {
            padding: var(--spacing-2xl) 0;
        }
        .section-alt {
            background: var(--color-bg-alt);
        }
        .section-dark {
            background: var(--color-bg-dark);
            color: var(--color-text-inverse);
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }
        .section-label {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(200, 150, 62, 0.1);
            color: var(--color-accent);
            border-radius: var(--radius-xl);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: var(--spacing-sm);
        }
        .section-title {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.02em;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-desc {
            color: var(--color-text-soft);
            max-width: 640px;
            margin: 0 auto;
            font-size: 1.05rem;
            line-height: 1.7;
        }
        .section-dark .section-desc {
            color: rgba(255, 255, 255, 0.65);
        }

        /* ============ CARDS ============ */
        .card-custom {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card-custom .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card-custom .card-body {
            padding: var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-custom .card-tag {
            display: inline-block;
            padding: 3px 10px;
            background: rgba(200, 150, 62, 0.12);
            color: var(--color-accent);
            border-radius: var(--radius-sm);
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 8px;
            width: fit-content;
        }
        .card-custom .card-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .card-custom .card-text {
            color: var(--color-text-soft);
            font-size: 0.9rem;
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
        }
        .card-custom .card-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: auto;
        }
        .card-custom .card-link {
            font-weight: 600;
            color: var(--color-accent);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap var(--transition-fast);
        }
        .card-custom .card-link:hover {
            gap: 9px;
            color: var(--color-accent-light);
        }

        /* ============ FEATURE LIST ============ */
        .feature-row {
            display: flex;
            align-items: center;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }
        .feature-row.reverse {
            flex-direction: row-reverse;
        }
        .feature-row .feature-img {
            flex: 1;
            min-width: 280px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .feature-row .feature-img img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .feature-row .feature-img:hover img {
            transform: scale(1.04);
        }
        .feature-row .feature-content {
            flex: 1;
            min-width: 260px;
        }
        .feature-row .feature-content h3 {
            font-family: var(--font-display);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
        }
        .feature-row .feature-content p {
            color: var(--color-text-soft);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .feature-list-check {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .feature-list-check li {
            padding: 6px 0 6px 28px;
            position: relative;
            color: var(--color-text-soft);
            font-size: 0.95rem;
        }
        .feature-list-check li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 6px;
            color: var(--color-accent);
            font-size: 0.8rem;
        }

        /* ============ STATS BLOCK ============ */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg) var(--spacing-md);
            text-align: center;
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.22);
            transform: translateY(-2px);
        }
        .stat-number {
            font-family: var(--font-display);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--color-accent-glow);
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-label {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: linear-gradient(135deg, #1a1a2e 0%, #1f1f38 50%, #252540 100%);
            padding: var(--spacing-2xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 650px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .cta-title {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }
        .cta-desc {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: var(--spacing-lg);
            font-size: 1.05rem;
            line-height: 1.7;
        }
        .cta-btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: var(--color-accent);
            color: #fff;
            border-radius: var(--radius-xl);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-accent);
            letter-spacing: 0.03em;
        }
        .btn-primary:hover {
            background: var(--color-accent-light);
            color: #fff;
            box-shadow: 0 8px 32px rgba(200, 150, 62, 0.4);
            transform: translateY(-2px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.35);
            border-radius: var(--radius-xl);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-base);
            letter-spacing: 0.03em;
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question .faq-icon {
            transition: transform var(--transition-base);
            color: var(--color-accent);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 18px;
        }
        .faq-answer p {
            color: var(--color-text-soft);
            line-height: 1.7;
            margin: 0;
            font-size: 0.95rem;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #12121f;
            color: rgba(255, 255, 255, 0.7);
            padding: var(--spacing-2xl) 0 0;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
            padding-bottom: var(--spacing-xl);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-glow);
        }
        .footer-logo-text {
            font-family: var(--font-display);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: var(--spacing-md) 0;
            gap: 14px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--color-accent-glow);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-row {
                flex-direction: column !important;
                gap: var(--spacing-md);
            }
            .feature-row .feature-img,
            .feature-row .feature-content {
                flex: none;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-tabs {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                flex-direction: column;
                background: #fff;
                border-radius: 0;
                padding: 12px;
                border: none;
                box-shadow: var(--shadow-lg);
                z-index: 999;
                gap: 2px;
            }
            .nav-tabs.mobile-open {
                display: flex;
            }
            .nav-tab {
                border-radius: var(--radius-md);
                padding: 10px 16px;
                width: 100%;
                text-align: left;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-cta-btn {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-search-wrap {
                flex-direction: column;
                background: transparent;
                border: none;
                padding: 0;
                gap: 10px;
            }
            .hero-search-input {
                background: rgba(255, 255, 255, 0.1);
                border: 1px solid rgba(255, 255, 255, 0.2);
                border-radius: var(--radius-xl);
                padding: 12px 16px;
            }
            .hero-search-btn {
                border-radius: var(--radius-xl);
                width: 100%;
                text-align: center;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .cta-btn-group {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-tags {
                gap: 6px;
            }
            .hero-tag {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .stat-label {
                font-size: 0.78rem;
            }
            .section {
                padding: var(--spacing-xl) 0;
            }
            .card-custom .card-body {
                padding: 14px;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #1a1a2e;
            --color-primary-light: #252540;
            --color-accent: #c8963e;
            --color-accent-light: #d4a843;
            --color-accent-glow: #e8c97a;
            --color-bg: #fafaf8;
            --color-bg-alt: #f3f1ec;
            --color-bg-dark: #1a1a2e;
            --color-surface: #ffffff;
            --color-text: #1f1f1f;
            --color-text-soft: #5a5a5a;
            --color-text-muted: #8a8a8a;
            --color-text-inverse: #f5f5f0;
            --color-border: #e4e1da;
            --color-border-light: #efede8;
            --color-success: #2d8c5a;
            --color-warning: #d4902a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 22px;
            --radius-2xl: 28px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 18px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 14px 48px rgba(0, 0, 0, 0.14);
            --shadow-accent: 0 4px 20px rgba(200, 150, 62, 0.25);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
            --spacing-xs: 6px;
            --spacing-sm: 14px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-2xl: 80px;
            --spacing-3xl: 100px;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }

        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        .button {
            cursor: pointer;
            font-family: var(--font-sans);
            transition: all var(--transition-base);
            border: none;
            outline: none;
        }

        button:focus-visible,
        .button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }

        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        input:focus,
        select:focus,
        textarea:focus {
            outline: none;
            border-color: var(--color-accent) !important;
            box-shadow: 0 0 0 3px rgba(200, 150, 62, 0.12) !important;
        }

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 20px;
        }

        .header-logo {
            font-family: var(--font-display);
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }

        .header-logo:hover {
            color: var(--color-accent);
        }

        .header-logo i {
            color: var(--color-accent);
            margin-right: 4px;
            font-size: 1.2rem;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 4px 0;
        }

        .header-nav::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            white-space: nowrap;
            transition: all var(--transition-fast);
            background: transparent;
            border: 1px solid transparent;
            letter-spacing: 0.02em;
            cursor: pointer;
            text-decoration: none;
        }

        .nav-tab:hover {
            color: var(--color-primary);
            background: var(--color-bg-alt);
            border-color: var(--color-border);
        }

        .nav-tab.active {
            color: #ffffff;
            background: var(--color-accent);
            border-color: var(--color-accent);
            font-weight: 600;
            box-shadow: var(--shadow-accent);
        }

        .nav-tab.active:hover {
            color: #ffffff;
            background: var(--color-accent-light);
        }

        .header-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #ffffff;
            background: var(--color-primary);
            white-space: nowrap;
            transition: all var(--transition-base);
            text-decoration: none;
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .header-cta-btn:hover {
            background: var(--color-accent);
            color: #ffffff;
            box-shadow: var(--shadow-accent);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: var(--color-bg-alt);
        }

        @media (max-width: 1024px) {
            .header-nav {
                gap: 2px;
            }
            .nav-tab {
                padding: 7px 12px;
                font-size: 0.82rem;
            }
            .header-cta-btn {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                padding: 0 12px;
                gap: 10px;
            }
            .header-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                padding: 16px;
                gap: 6px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }
            .header-nav.open {
                display: flex;
            }
            .nav-tab {
                width: 100%;
                justify-content: center;
                padding: 12px 16px;
                border-radius: var(--radius-md);
                font-size: 0.9rem;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-cta-btn {
                font-size: 0.8rem;
                padding: 8px 14px;
            }
        }

        /* ============ HERO SECTION ============ */
        .hero-section {
            position: relative;
            padding: var(--spacing-2xl) 0 var(--spacing-xl);
            background: linear-gradient(175deg, var(--color-bg) 0%, #f7f5f0 40%, var(--color-bg-alt) 100%);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(26, 26, 46, 0.04) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content {
            padding-right: 20px;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(200, 150, 62, 0.1);
            color: var(--color-accent);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            border: 1px solid rgba(200, 150, 62, 0.2);
        }

        .hero-title {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 700;
            line-height: 1.25;
            color: var(--color-primary);
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }

        .hero-title span {
            color: var(--color-accent);
            position: relative;
        }

        .hero-title span::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-accent-glow);
            border-radius: 2px;
            opacity: 0.5;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--color-text-soft);
            line-height: 1.75;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .hero-kpi-row {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .hero-kpi {
            text-align: left;
        }

        .hero-kpi-number {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1;
        }

        .hero-kpi-number.accent {
            color: var(--color-accent);
        }

        .hero-kpi-label {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-top: 4px;
            letter-spacing: 0.03em;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
            background: var(--color-accent);
            text-decoration: none;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
            box-shadow: var(--shadow-accent);
        }

        .btn-primary:hover {
            background: var(--color-accent-light);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(200, 150, 62, 0.35);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            background: transparent;
            border: 2px solid var(--color-border);
            text-decoration: none;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }

        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(200, 150, 62, 0.04);
            transform: translateY(-2px);
        }

        .hero-image-wrap {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-image-frame {
            position: relative;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-xl);
            transform: rotate(-0.6deg);
            transition: transform var(--transition-slow);
            border: 6px solid #ffffff;
            background: #ffffff;
        }

        .hero-image-frame:hover {
            transform: rotate(0deg);
        }

        .hero-image-frame img {
            width: 100%;
            height: auto;
            border-radius: calc(var(--radius-2xl) - 4px);
            object-fit: cover;
            aspect-ratio: 16/11;
        }

        .hero-accent-dot {
            position: absolute;
            width: 22px;
            height: 22px;
            background: var(--color-accent);
            border-radius: 50%;
            top: -11px;
            right: -11px;
            box-shadow: 0 0 0 8px rgba(200, 150, 62, 0.15);
            z-index: 2;
            animation: dotPulse 3s ease-in-out infinite;
        }

        @keyframes dotPulse {
            0%,
            100% {
                box-shadow: 0 0 0 8px rgba(200, 150, 62, 0.15);
            }
            50% {
                box-shadow: 0 0 0 18px rgba(200, 150, 62, 0.05);
            }
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
        }

        @media (max-width: 768px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                text-align: center;
            }
            .hero-content {
                padding-right: 0;
                order: 1;
            }
            .hero-image-wrap {
                order: 0;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-desc {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-kpi-row {
                justify-content: center;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-kpi {
                text-align: center;
            }
            .hero-image-frame {
                transform: rotate(0deg);
                max-width: 90%;
                margin: 0 auto;
            }
            .hero-section {
                padding: var(--spacing-xl) 0 var(--spacing-lg);
            }
        }

        /* ============ SECTION COMMONS ============ */
        .section {
            padding: var(--spacing-2xl) 0;
        }

        .section-alt {
            background: var(--color-bg-alt);
        }

        .section-dark {
            background: var(--color-bg-dark);
            color: var(--color-text-inverse);
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }

        .section-tag {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(200, 150, 62, 0.08);
            color: var(--color-accent);
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-dark .section-title {
            color: #ffffff;
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }
        .section-dark .section-tag {
            background: rgba(200, 150, 62, 0.2);
            color: var(--color-accent-glow);
        }

        /* ============ PLAY CATEGORY CARDS ============ */
        .play-cat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .play-cat-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 28px 22px 22px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            cursor: pointer;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-xs);
        }

        .play-cat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-slow);
            border-radius: 0 0 3px 3px;
        }

        .play-cat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-accent);
        }

        .play-cat-card:hover::before {
            transform: scaleX(1);
        }

        .play-cat-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            color: var(--color-accent);
            transition: all var(--transition-base);
        }

        .play-cat-card:hover .play-cat-icon {
            background: var(--color-accent);
            color: #ffffff;
            box-shadow: var(--shadow-accent);
        }

        .play-cat-name {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .play-cat-desc {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            line-height: 1.5;
        }

        @media (max-width: 1024px) {
            .play-cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .play-cat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .play-cat-card {
                padding: 20px 14px 16px;
            }
        }

        /* ============ DETAILED PLAY SECTIONS ============ */
        .play-detail-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: var(--spacing-xl);
            background: #ffffff;
            border-radius: var(--radius-2xl);
            padding: 36px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base);
        }

        .play-detail-block:hover {
            box-shadow: var(--shadow-md);
        }

        .play-detail-block:nth-child(even) .play-detail-image {
            order: -1;
        }

        .play-detail-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .play-detail-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(200, 150, 62, 0.1);
            color: var(--color-accent);
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .play-detail-title {
            font-family: var(--font-display);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
        }

        .play-detail-desc {
            color: var(--color-text-soft);
            line-height: 1.7;
            font-size: 0.95rem;
            margin-bottom: 14px;
        }

        .play-detail-features {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .play-detail-features li {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.82rem;
            color: var(--color-text-soft);
            background: var(--color-bg-alt);
            padding: 5px 12px;
            border-radius: 16px;
        }

        .play-detail-features li i {
            color: var(--color-accent);
            font-size: 0.7rem;
        }

        @media (max-width: 768px) {
            .play-detail-block {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 24px;
            }
            .play-detail-block:nth-child(even) .play-detail-image {
                order: 0;
            }
            .play-detail-title {
                font-size: 1.3rem;
            }
        }

        /* ============ SCENARIO CARDS ============ */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 30px 24px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            position: relative;
            box-shadow: var(--shadow-xs);
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-accent);
        }

        .scenario-number {
            font-family: var(--font-display);
            font-size: 3rem;
            font-weight: 800;
            color: rgba(200, 150, 62, 0.12);
            line-height: 1;
            margin-bottom: 8px;
        }

        .scenario-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .scenario-desc {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .scenario-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 520px) {
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ COMPARISON TABLE ============ */
        .compare-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            background: #ffffff;
            border: 1px solid var(--color-border-light);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            font-size: 0.9rem;
        }

        .compare-table thead th {
            background: var(--color-primary);
            color: #ffffff;
            padding: 14px 16px;
            font-weight: 600;
            text-align: center;
            font-size: 0.85rem;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .compare-table tbody td {
            padding: 13px 16px;
            text-align: center;
            border-bottom: 1px solid var(--color-border-light);
            color: var(--color-text-soft);
        }

        .compare-table tbody tr:hover {
            background: rgba(200, 150, 62, 0.03);
        }

        .compare-table tbody tr:last-child td {
            border-bottom: none;
        }

        .compare-table .highlight-col {
            color: var(--color-accent);
            font-weight: 600;
        }

        .compare-table .play-name-col {
            font-weight: 700;
            color: var(--color-primary);
            text-align: left;
        }

        /* ============ WIN STORIES ============ */
        .stories-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .story-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .story-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .story-card-image {
            height: 200px;
            overflow: hidden;
        }

        .story-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .story-card:hover .story-card-image img {
            transform: scale(1.04);
        }

        .story-card-body {
            padding: 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .story-card-tag {
            font-size: 0.75rem;
            color: var(--color-accent);
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 6px;
        }

        .story-card-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .story-card-excerpt {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            flex: 1;
        }

        .story-card-meta {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            margin-top: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        @media (max-width: 768px) {
            .stories-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ STEPS ============ */
        .steps-list {
            list-style: none;
            padding: 0;
            margin: 0;
            counter-reset: step-counter;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .steps-list li {
            counter-increment: step-counter;
            display: flex;
            align-items: flex-start;
            gap: 18px;
            background: #ffffff;
            padding: 22px 24px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            box-shadow: var(--shadow-xs);
        }

        .steps-list li:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-accent);
        }

        .step-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }

        .step-content h4 {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-primary);
            margin-bottom: 4px;
        }

        .step-content p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.6;
        }

        /* ============ TIPS GRID ============ */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .tip-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 22px;
            border-left: 4px solid var(--color-accent);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-base);
        }

        .tip-card:hover {
            box-shadow: var(--shadow-md);
            border-left-color: var(--color-primary);
        }

        .tip-card h4 {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .tip-card p {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 600px) {
            .tips-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-xs);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 18px 22px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary);
            user-select: none;
            transition: background var(--transition-fast);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
        }

        .faq-question:hover {
            background: rgba(200, 150, 62, 0.03);
        }

        .faq-question i {
            transition: transform var(--transition-base);
            color: var(--color-accent);
            font-size: 0.9rem;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 22px;
            max-height: 0;
            overflow: hidden;
            transition: all var(--transition-base);
            color: var(--color-text-soft);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            padding: 0 22px 18px;
            max-height: 400px;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            position: relative;
            padding: var(--spacing-2xl) 0;
            background: var(--color-bg-dark);
            overflow: hidden;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-title {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
        }

        .cta-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .cta-btn-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            border-radius: 30px;
            font-size: 1.1rem;
            font-weight: 700;
            color: #ffffff;
            background: var(--color-accent);
            text-decoration: none;
            transition: all var(--transition-base);
            letter-spacing: 0.03em;
            box-shadow: 0 6px 28px rgba(200, 150, 62, 0.4);
        }

        .cta-btn-large:hover {
            background: var(--color-accent-light);
            color: #ffffff;
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(200, 150, 62, 0.5);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #14141f;
            color: rgba(255, 255, 255, 0.7);
            padding: var(--spacing-xl) 0 0;
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 36px;
            padding-bottom: var(--spacing-lg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo-text {
            font-family: var(--font-display);
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.04em;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 7px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }

        .footer-col ul li a:hover {
            color: var(--color-accent-glow);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 20px 0;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--color-accent-glow);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ UTILITY ANIMATIONS ============ */
        .fade-in-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.7rem;
            }
            .section {
                padding: var(--spacing-xl) 0;
            }
            .hero-title {
                font-size: 1.8rem;
            }
        }