/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #6C3CE1;
            --primary-dark: #5A2FC0;
            --secondary: #F5A623;
            --secondary-dark: #E09510;
            --bg-darkest: #14111C;
            --bg-dark: #1E1A2B;
            --bg-card: #2A2440;
            --bg-light: #F9F7FC;
            --text-white: #FFFFFF;
            --text-muted: #C5C0D8;
            --text-dim: #7A74A0;
            --text-emphasis: #F5A623;
            --border-color: #2A2440;
            --border-light: #3D3560;
            --radius-card: 24px;
            --radius-card-sm: 16px;
            --radius-button: 32px;
            --radius-input: 16px;
            --radius-dock: 48px;
            --shadow-card: 0 12px 40px rgba(108, 60, 225, 0.15), 0 4px 12px rgba(0,0,0,0.2);
            --shadow-dock: 0 8px 32px rgba(0,0,0,0.3), 0 0 0 1px rgba(255,255,255,0.05);
            --shadow-btn: 0 8px 24px rgba(108, 60, 225, 0.4);
            --shadow-badge: 0 4px 12px rgba(245, 166, 35, 0.3);
            --gradient-main: 135deg, #6C3CE1, #F5A623;
            --gradient-hero: 180deg, rgba(20, 17, 28, 0.85) 0%, rgba(108, 60, 225, 0.4) 100%;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --container-max: 1200px;
            --spacing-section: 90px;
            --spacing-section-mobile: 56px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-darkest);
            color: var(--text-white);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary); text-decoration: none; transition: color 0.25s ease, opacity 0.25s ease; }
        a:hover { color: var(--secondary); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; outline: none; border: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: 1.3; color: var(--text-white); }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
        @media (max-width: 640px) { .container { padding: 0 16px; } }

        /* ===== Foundation override ===== */
        .row { max-width: var(--container-max); }
        .column, .columns { padding-left: 12px; padding-right: 12px; }

        /* ===== Navigation Dock ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: 90%;
            max-width: 1080px;
            z-index: 1000;
            transition: all 0.3s ease;
        }
        .site-header.scrolled {
            top: 8px;
            width: 94%;
        }
        .nav-dock {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(30, 26, 43, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-dock);
            padding: 0 28px;
            height: 64px;
            box-shadow: var(--shadow-dock);
            transition: all 0.3s ease;
        }
        .site-header.scrolled .nav-dock { height: 56px; }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(var(--gradient-main));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
        }
        .nav-logo .logo-text { color: var(--text-white); }
        .nav-logo .logo-text span { color: var(--secondary); }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu li a {
            display: block;
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: 24px;
            transition: all 0.25s ease;
            position: relative;
        }
        .nav-menu li a:hover { color: var(--text-white); background: rgba(108, 60, 225, 0.15); }
        .nav-menu li a.active { color: var(--secondary); background: rgba(245, 166, 35, 0.1); }
        .nav-menu li a::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
            transition: transform 0.25s ease;
        }
        .nav-menu li a:hover::after { transform: translateX(-50%) scaleX(1); }
        .nav-menu li a.active::after { transform: translateX(-50%) scaleX(1); }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: transparent;
            color: var(--text-muted);
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }
        .nav-search-btn:hover { color: var(--text-white); background: rgba(108, 60, 225, 0.2); border-color: var(--border-light); }
        .nav-cta {
            padding: 8px 22px;
            background: linear-gradient(var(--gradient-main));
            color: var(--text-white);
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-button);
            transition: all 0.3s ease;
            box-shadow: 0 4px 16px rgba(108, 60, 225, 0.3);
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }
        .nav-cta:hover { box-shadow: var(--shadow-btn); transform: translateY(-1px); color: #fff; }
        .nav-cta:active { transform: scale(0.97); }
        .hamburger-btn {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(108, 60, 225, 0.15);
            color: var(--text-white);
            font-size: 20px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            border: none;
            transition: background 0.25s ease;
        }
        .hamburger-btn:hover { background: rgba(108, 60, 225, 0.3); }
        .mobile-menu {
            display: none;
            position: absolute;
            top: calc(100% + 8px);
            left: 0;
            right: 0;
            background: rgba(30, 26, 43, 0.96);
            backdrop-filter: blur(16px);
            border-radius: 24px;
            padding: 16px;
            box-shadow: var(--shadow-dock);
            border: 1px solid var(--border-light);
        }
        .mobile-menu.open { display: block; }
        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: 12px;
            transition: all 0.2s ease;
        }
        .mobile-menu a:hover { color: var(--text-white); background: rgba(108, 60, 225, 0.15); }
        .mobile-menu a.active { color: var(--secondary); background: rgba(245, 166, 35, 0.1); }

        @media (max-width: 768px) {
            .site-header { top: 12px; width: 94%; }
            .nav-dock { padding: 0 16px; height: 56px; }
            .nav-logo { font-size: 20px; }
            .nav-logo .logo-icon { width: 30px; height: 30px; font-size: 14px; }
            .nav-menu { display: none; }
            .nav-actions .nav-cta { display: none; }
            .hamburger-btn { display: flex; }
            .nav-search-btn { width: 34px; height: 34px; font-size: 16px; }
        }
        @media (max-width: 480px) {
            .site-header { top: 8px; width: 96%; }
            .nav-dock { height: 50px; padding: 0 12px; }
            .nav-logo { font-size: 18px; }
            .nav-logo .logo-icon { width: 26px; height: 26px; font-size: 12px; }
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            overflow: hidden;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(var(--gradient-hero));
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(108, 60, 225, 0.25) 0%, transparent 70%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 880px;
            padding: 100px 24px 60px;
        }
        .hero-title {
            font-size: 52px;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 20px;
            text-shadow: 0 4px 24px rgba(0,0,0,0.4);
            letter-spacing: 1px;
        }
        .hero-title .highlight { color: var(--secondary); }
        .hero-subtitle {
            font-size: 22px;
            color: var(--text-muted);
            font-weight: 400;
            line-height: 1.6;
            margin-bottom: 36px;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-cta-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }
        .hero-btn-primary {
            padding: 16px 44px;
            background: linear-gradient(var(--gradient-main));
            color: var(--text-white);
            font-size: 17px;
            font-weight: 600;
            border-radius: var(--radius-button);
            transition: all 0.3s ease;
            box-shadow: 0 8px 28px rgba(108, 60, 225, 0.35);
            cursor: pointer;
            border: none;
            letter-spacing: 0.5px;
        }
        .hero-btn-primary:hover { box-shadow: var(--shadow-btn); transform: translateY(-2px); color: #fff; }
        .hero-btn-primary:active { transform: scale(0.97); }
        .hero-btn-secondary {
            padding: 14px 36px;
            border: 2px solid var(--primary);
            background: transparent;
            color: var(--text-white);
            font-size: 16px;
            font-weight: 500;
            border-radius: var(--radius-button);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        .hero-btn-secondary:hover { background: var(--primary); color: var(--text-white); border-color: var(--primary); }
        .hero-badges {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .hero-badge {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
        }
        .hero-badge .badge-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1;
            text-shadow: 0 2px 12px rgba(245, 166, 35, 0.3);
        }
        .hero-badge .badge-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 400;
            letter-spacing: 0.5px;
        }

        @media (max-width: 768px) {
            .hero-title { font-size: 34px; }
            .hero-subtitle { font-size: 18px; }
            .hero-btn-primary { padding: 14px 32px; font-size: 15px; }
            .hero-badge .badge-number { font-size: 26px; }
            .hero-badges { gap: 24px; }
        }
        @media (max-width: 480px) {
            .hero-title { font-size: 28px; }
            .hero-subtitle { font-size: 16px; }
            .hero-content { padding: 80px 16px 40px; }
            .hero-badge .badge-number { font-size: 22px; }
            .hero-badges { gap: 16px; }
        }

        /* ===== Section Common ===== */
        .section { padding: var(--spacing-section) 0; }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header h2 {
            font-size: 38px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .section-header .section-desc {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-header .section-line {
            width: 60px;
            height: 4px;
            background: linear-gradient(var(--gradient-main));
            border-radius: 4px;
            margin: 16px auto 0;
        }

        @media (max-width: 768px) {
            .section { padding: var(--spacing-section-mobile) 0; }
            .section-header h2 { font-size: 28px; }
            .section-header { margin-bottom: 36px; }
        }

        /* ===== Feature Cards (爆款片段卡区) ===== */
        .feature-cards-section { background: var(--bg-dark); }
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover { transform: translateY(-6px); box-shadow: 0 20px 50px rgba(108, 60, 225, 0.25), 0 6px 16px rgba(0,0,0,0.25); }
        .feature-card .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            border-radius: var(--radius-card-sm);
            overflow: hidden;
            margin-bottom: 18px;
            background: var(--bg-dark);
        }
        .feature-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
        .feature-card:hover .card-img img { transform: scale(1.05); }
        .feature-card .card-label {
            position: absolute;
            top: 20px;
            right: 20px;
            background: linear-gradient(var(--gradient-main));
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 20px;
            box-shadow: var(--shadow-badge);
            z-index: 2;
        }
        .feature-card h4 {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .feature-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border-color);
        }
        .feature-card .card-meta .badge-data {
            background: rgba(245, 166, 35, 0.15);
            color: var(--secondary);
            font-size: 14px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
        }
        .feature-card.feature-wide {
            grid-column: span 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: center;
        }
        .feature-card.feature-wide .card-img { margin-bottom: 0; aspect-ratio: 4/3; }

        @media (max-width: 768px) {
            .feature-grid { grid-template-columns: 1fr; }
            .feature-card.feature-wide { grid-column: span 1; grid-template-columns: 1fr; }
            .feature-card h4 { font-size: 19px; }
            .feature-card { padding: 20px; }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .feature-grid { grid-template-columns: 1fr 1fr; }
            .feature-card.feature-wide { grid-column: span 2; grid-template-columns: 1fr 1fr; }
        }

        /* =====种草清单 ===== */
        .list-section { background: var(--bg-darkest); }
        .list-wrapper {
            max-width: 880px;
            margin: 0 auto;
            position: relative;
        }
        .list-item {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            padding: 28px 0;
            border-bottom: 1px solid rgba(42, 36, 64, 0.6);
            transition: all 0.25s ease;
        }
        .list-item:last-child { border-bottom: none; }
        .list-item:hover { padding-left: 12px; }
        .list-item .item-index {
            width: 48px;
            height: 48px;
            min-width: 48px;
            border-radius: 50%;
            background: linear-gradient(var(--gradient-main));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            box-shadow: 0 4px 12px rgba(108, 60, 225, 0.3);
        }
        .list-item .item-content { flex: 1; }
        .list-item .item-content h4 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 6px;
        }
        .list-item .item-content p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 600px;
        }
        .list-item .item-link {
            color: var(--secondary);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            margin-top: 4px;
            display: inline-block;
            transition: all 0.25s ease;
        }
        .list-item .item-link:hover { transform: translateX(4px); }
        .list-decor {
            position: absolute;
            right: -80px;
            top: 40px;
            width: 140px;
            height: 140px;
            border-radius: 24px;
            overflow: hidden;
            opacity: 0.3;
            pointer-events: none;
        }
        .list-decor img { width: 100%; height: 100%; object-fit: cover; }

        @media (max-width: 768px) {
            .list-item { gap: 16px; padding: 20px 0; }
            .list-item .item-index { width: 40px; height: 40px; min-width: 40px; font-size: 16px; }
            .list-item .item-content h4 { font-size: 17px; }
            .list-decor { display: none; }
        }

        /* ===== Testimonials ===== */
        .testimonials-section { background: var(--bg-dark); }
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--bg-light);
            border-radius: 20px;
            padding: 28px 24px;
            box-shadow: 0 8px 24px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
        }
        .testimonial-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,0.12); }
        .testimonial-card .stars {
            color: var(--secondary);
            font-size: 16px;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }
        .testimonial-card .quote {
            font-size: 15px;
            color: #333;
            line-height: 1.7;
            margin-bottom: 18px;
            font-style: italic;
            min-height: 60px;
        }
        .testimonial-card .author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-card .author .avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--border-light);
            overflow: hidden;
            flex-shrink: 0;
        }
        .testimonial-card .author .avatar img { width: 100%; height: 100%; object-fit: cover; }
        .testimonial-card .author .info .name { font-size: 15px; font-weight: 600; color: #222; }
        .testimonial-card .author .info .company { font-size: 13px; color: #888; }

        @media (max-width: 768px) {
            .testimonial-grid { grid-template-columns: 1fr; }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
        }

        /* ===== Latest News / CMS ===== */
        .news-section { background: var(--bg-darkest); }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.35s ease;
        }
        .news-card:hover { transform: translateY(-4px); box-shadow: 0 20px 50px rgba(108, 60, 225, 0.2); }
        .news-card .news-img {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-dark);
        }
        .news-card .news-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
        .news-card:hover .news-img img { transform: scale(1.05); }
        .news-card .news-body { padding: 20px 22px 24px; }
        .news-card .news-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            background: rgba(245, 166, 35, 0.12);
            padding: 3px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
        }
        .news-card .news-body h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .news-body .news-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .news-card .news-body .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-dim);
        }
        .news-card .news-body .news-meta a {
            color: var(--primary);
            font-weight: 500;
        }
        .news-card .news-body .news-meta a:hover { color: var(--secondary); }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-dim);
        }
        .news-empty .empty-icon {
            font-size: 64px;
            color: var(--border-light);
            margin-bottom: 16px;
        }
        .news-empty p { font-size: 16px; }
        .news-more-wrap {
            text-align: center;
            margin-top: 36px;
        }
        .news-more-btn {
            display: inline-block;
            padding: 12px 36px;
            border: 2px solid var(--primary);
            color: var(--primary);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-button);
            transition: all 0.3s ease;
            background: transparent;
            cursor: pointer;
        }
        .news-more-btn:hover { background: var(--primary); color: var(--text-white); }

        @media (max-width: 768px) {
            .news-grid { grid-template-columns: 1fr; }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .news-grid { grid-template-columns: repeat(2, 1fr); }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1E1A2B, #2A2440);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(108, 60, 225, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
            padding: 20px 0;
        }
        .cta-content h2 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-content p {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.6;
        }
        .cta-btn-group {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .cta-btn-primary {
            padding: 16px 48px;
            background: linear-gradient(var(--gradient-main));
            color: var(--text-white);
            font-size: 17px;
            font-weight: 600;
            border-radius: var(--radius-button);
            transition: all 0.3s ease;
            box-shadow: 0 8px 28px rgba(108, 60, 225, 0.35);
            cursor: pointer;
            border: none;
        }
        .cta-btn-primary:hover { box-shadow: var(--shadow-btn); transform: translateY(-2px); color: #fff; }
        .cta-btn-primary:active { transform: scale(0.97); }

        @media (max-width: 768px) {
            .cta-content h2 { font-size: 28px; }
            .cta-content p { font-size: 16px; }
            .cta-btn-primary { padding: 14px 32px; font-size: 15px; }
        }

        /* ===== FAQ ===== */
        .faq-section { background: var(--bg-dark); }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-card-sm);
            margin-bottom: 16px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all 0.25s ease;
        }
        .faq-item:hover { border-color: var(--border-light); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 500;
            color: var(--text-white);
            transition: all 0.25s ease;
            user-select: none;
        }
        .faq-question .faq-icon {
            font-size: 14px;
            color: var(--secondary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon { transform: rotate(90deg); }
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        @media (max-width: 768px) {
            .faq-question { padding: 16px 18px; font-size: 15px; }
            .faq-answer { padding: 0 18px 16px; font-size: 14px; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-darkest);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-brand .footer-logo .logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(var(--gradient-main));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            color: #fff;
        }
        .footer-brand .footer-logo span { color: var(--secondary); }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: all 0.2s ease;
        }
        .footer-col ul li a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-col .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .footer-col .contact-item i { color: var(--primary); width: 20px; text-align: center; }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-dim);
        }

        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-brand p { max-width: 100%; }
            .site-footer { padding: 40px 0 0; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-2 { margin-top: 16px; }
        .mb-2 { margin-bottom: 16px; }
        .gap-2 { gap: 16px; }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: var(--bg-darkest); }
        ::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 10px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--primary); }

        /* ===== Focus Accessibility ===== */
        a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        /* ===== Responsive Fine-tune ===== */
        @media (max-width: 640px) {
            .hero-title { font-size: 26px; }
            .hero-subtitle { font-size: 15px; }
            .hero-btn-primary { padding: 12px 28px; font-size: 14px; }
            .hero-btn-secondary { padding: 10px 24px; font-size: 14px; }
            .section-header h2 { font-size: 24px; }
            .feature-card h4 { font-size: 17px; }
            .news-card .news-body { padding: 16px 18px 20px; }
            .news-card .news-body h4 { font-size: 16px; }
            .cta-content h2 { font-size: 24px; }
        }

/* roulang page: article */
:root {
            --primary: #6C3CE1;
            --primary-dark: #5A2FC0;
            --secondary: #F5A623;
            --secondary-dark: #E09510;
            --bg-dark: #14111C;
            --bg-section: #1E1A2B;
            --bg-card: #2A2440;
            --bg-card-hover: #322C4E;
            --text-main: #FFFFFF;
            --text-muted: #C5C0D8;
            --text-dim: #7A74A0;
            --border-color: #3D3560;
            --border-light: #2A2440;
            --radius-card: 24px;
            --radius-small: 16px;
            --radius-btn: 32px;
            --radius-nav: 48px;
            --shadow-card: 0 12px 40px rgba(108, 60, 225, 0.15), 0 4px 12px rgba(0, 0, 0, 0.2);
            --shadow-nav: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.05);
            --shadow-btn: 0 8px 24px rgba(108, 60, 225, 0.4);
            --shadow-badge: 0 4px 12px rgba(245, 166, 35, 0.3);
            --gradient-brand: 135deg, #6C3CE1, #F5A623;
            --gradient-hero: radial-gradient(ellipse at center, rgba(108, 60, 225, 0.4), #14111C 80%);
            --font-base: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-heading: "Noto Sans SC", "PingFang SC", sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-base);
            background-color: var(--bg-dark);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        @media screen and (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Floating Dock Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 16px 20px 0;
            display: flex;
            justify-content: center;
            pointer-events: none;
        }

        .nav-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1080px;
            background: rgba(30, 26, 43, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-nav);
            padding: 10px 24px;
            box-shadow: var(--shadow-nav);
            transition: all var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.05);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            pointer-events: auto;
            flex-shrink: 0;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(var(--gradient-brand));
            border-radius: 10px;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            font-family: var(--font-heading);
            letter-spacing: 1px;
        }

        .logo-text span {
            color: var(--secondary);
            font-weight: 600;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 8px;
            margin: 0;
            padding: 0;
            align-items: center;
        }

        .nav-menu li a {
            color: var(--text-muted);
            padding: 8px 16px;
            border-radius: var(--radius-small);
            font-size: 15px;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-menu li a:hover {
            color: var(--text-main);
            background: rgba(108, 60, 225, 0.15);
        }

        .nav-menu li a.active {
            color: var(--secondary);
            background: rgba(245, 166, 35, 0.1);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search-btn {
            background: transparent;
            border: none;
            color: var(--text-muted);
            font-size: 18px;
            cursor: pointer;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }

        .nav-search-btn:hover {
            background: rgba(108, 60, 225, 0.15);
            color: var(--text-main);
        }

        .nav-cta {
            display: inline-block;
            background: linear-gradient(var(--gradient-brand));
            color: #fff;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

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

        .hamburger-btn {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-main);
            font-size: 24px;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 8px;
            transition: background var(--transition);
        }

        .hamburger-btn:hover {
            background: rgba(108, 60, 225, 0.15);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 80px;
            left: 20px;
            right: 20px;
            background: rgba(30, 26, 43, 0.96);
            backdrop-filter: blur(20px);
            border-radius: var(--radius-card);
            padding: 16px;
            box-shadow: var(--shadow-nav);
            border: 1px solid rgba(255, 255, 255, 0.05);
            z-index: 999;
            flex-direction: column;
            gap: 6px;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            color: var(--text-muted);
            padding: 12px 16px;
            border-radius: var(--radius-small);
            font-size: 16px;
            font-weight: 500;
            transition: all var(--transition);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--text-main);
            background: rgba(108, 60, 225, 0.15);
        }

        @media screen and (max-width: 768px) {
            .site-header {
                padding: 12px 12px 0;
            }
            .nav-dock {
                padding: 8px 16px;
                border-radius: 36px;
            }
            .nav-menu {
                display: none;
            }
            .hamburger-btn {
                display: block;
            }
            .nav-cta {
                display: none;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .nav-search-btn {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
        }

        @media screen and (min-width: 769px) {
            .mobile-menu {
                display: none !important;
            }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-section {
            padding: 100px 0 20px;
            background: var(--bg-dark);
        }

        .breadcrumbs {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            padding: 0;
            margin: 0;
        }

        .breadcrumbs li {
            font-size: 14px;
            color: var(--text-dim);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumbs li+li::before {
            content: '/';
            color: var(--text-dim);
            font-size: 14px;
        }

        .breadcrumbs li a {
            color: var(--primary);
            transition: color var(--transition);
        }

        .breadcrumbs li a:hover {
            color: var(--secondary);
        }

        .breadcrumbs li.current {
            color: var(--text-muted);
        }

        /* ===== Article Hero ===== */
        .article-hero {
            padding: 40px 0 30px;
            background: var(--bg-dark);
            border-bottom: 1px solid var(--border-light);
        }

        .article-hero .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            align-items: center;
            font-size: 14px;
            color: var(--text-dim);
            margin-bottom: 16px;
        }

        .article-hero .article-meta .meta-category {
            display: inline-block;
            background: rgba(108, 60, 225, 0.15);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
        }

        .article-hero .article-meta .meta-date {
            color: var(--text-dim);
        }

        .article-hero .article-meta .meta-updated {
            color: var(--text-dim);
            font-size: 13px;
        }

        .article-hero h1 {
            font-family: var(--font-heading);
            font-size: 42px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 8px;
            max-width: 900px;
        }

        @media screen and (max-width: 768px) {
            .article-hero h1 {
                font-size: 28px;
            }
            .article-hero {
                padding: 30px 0 20px;
            }
            .breadcrumb-section {
                padding: 80px 0 10px;
            }
        }

        /* ===== Article Content ===== */
        .article-main {
            padding: 40px 0 60px;
            background: var(--bg-dark);
        }

        .article-content-wrap {
            max-width: 768px;
            margin: 0 auto;
        }

        .article-body {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-main);
        }

        .article-body h2 {
            font-family: var(--font-heading);
            font-size: 32px;
            font-weight: 600;
            margin: 48px 0 20px;
            color: var(--text-main);
            line-height: 1.3;
        }

        .article-body h3 {
            font-family: var(--font-heading);
            font-size: 24px;
            font-weight: 600;
            margin: 36px 0 16px;
            color: var(--text-main);
            line-height: 1.35;
        }

        .article-body p {
            margin-bottom: 20px;
            color: var(--text-muted);
        }

        .article-body strong {
            color: var(--text-main);
            font-weight: 600;
        }

        .article-body blockquote {
            border-left: 4px solid var(--secondary);
            padding: 16px 24px;
            margin: 24px 0;
            background: var(--bg-section);
            border-radius: 0 var(--radius-small) var(--radius-small) 0;
            color: var(--text-muted);
            font-style: italic;
        }

        .article-body ul,
        .article-body ol {
            margin: 16px 0 24px;
            padding-left: 24px;
            color: var(--text-muted);
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body img {
            border-radius: var(--radius-small);
            margin: 32px auto;
            width: 100%;
            max-width: 100%;
        }

        .article-body a {
            color: var(--secondary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

        .article-body a:hover {
            color: var(--primary);
        }

        /* ===== Article Navigation ===== */
        .article-nav {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--border-light);
        }

        .article-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 20px;
            background: var(--bg-section);
            border-radius: var(--radius-small);
            color: var(--text-muted);
            font-size: 15px;
            transition: all var(--transition);
            flex: 1;
            max-width: 48%;
        }

        .article-nav a:hover {
            background: var(--bg-card);
            color: var(--text-main);
        }

        .article-nav .nav-prev {
            justify-content: flex-start;
        }

        .article-nav .nav-next {
            justify-content: flex-end;
        }

        .article-nav a .nav-label {
            font-size: 13px;
            color: var(--text-dim);
            display: block;
            margin-bottom: 2px;
        }

        @media screen and (max-width: 640px) {
            .article-nav {
                flex-direction: column;
            }
            .article-nav a {
                max-width: 100%;
            }
            .article-body h2 {
                font-size: 26px;
            }
            .article-body h3 {
                font-size: 20px;
            }
            .article-body {
                font-size: 16px;
            }
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 60px 0 80px;
            background: var(--bg-section);
        }

        .related-section .section-title {
            font-family: var(--font-heading);
            font-size: 32px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 40px;
            text-align: center;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: rgba(108, 60, 225, 0.2);
            background: var(--bg-card-hover);
        }

        .related-card .related-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius-small);
            margin-bottom: 16px;
            background: var(--bg-section);
        }

        .related-card h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .related-card p {
            font-size: 14px;
            color: var(--text-dim);
            line-height: 1.6;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .related-meta {
            font-size: 13px;
            color: var(--text-dim);
        }

        .related-card .related-meta .tag {
            display: inline-block;
            background: rgba(108, 60, 225, 0.12);
            color: var(--primary);
            padding: 2px 10px;
            border-radius: 12px;
            font-size: 12px;
            margin-right: 8px;
        }

        @media screen and (max-width: 768px) {
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .related-section .section-title {
                font-size: 26px;
            }
        }

        @media screen and (min-width: 769px) and (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* ===== Back Link ===== */
        .back-link-wrap {
            text-align: center;
            margin-top: 40px;
        }

        .back-link-wrap a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-size: 16px;
            font-weight: 500;
            transition: color var(--transition);
        }

        .back-link-wrap a:hover {
            color: var(--secondary);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            padding: 60px 0 30px;
            border-top: 1px solid var(--border-light);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            font-family: var(--font-heading);
        }

        .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            font-size: 16px;
        }

        .footer-logo span {
            color: var(--secondary);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-dim);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
        }

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

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 14px;
            transition: color var(--transition);
        }

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

        .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-dim);
            font-size: 14px;
            margin-bottom: 12px;
        }

        .contact-item i {
            width: 20px;
            color: var(--primary);
            font-size: 16px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: var(--text-dim);
        }

        @media screen and (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

        /* ===== Article Empty State ===== */
        .article-empty {
            text-align: center;
            padding: 80px 20px;
        }

        .article-empty .empty-icon {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: var(--bg-card);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 24px;
            font-size: 32px;
            color: var(--text-dim);
        }

        .article-empty h3 {
            font-size: 24px;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .article-empty p {
            color: var(--text-dim);
            font-size: 16px;
            margin-bottom: 24px;
        }

        .article-empty a {
            display: inline-block;
            background: linear-gradient(var(--gradient-brand));
            color: #fff;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            transition: all var(--transition);
        }

        .article-empty a:hover {
            box-shadow: var(--shadow-btn);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--bg-card);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-dim);
        }

        /* ===== Focus Styles ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        /* ===== Transition ===== */
        .fade-in {
            animation: fadeIn 0.6s ease-out forwards;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #6C3CE1;
            --primary-dark: #5A2EC9;
            --secondary: #F5A623;
            --secondary-light: #FFB84D;
            --bg-dark: #14111C;
            --bg-section: #1E1A2B;
            --bg-card: #2A2440;
            --bg-card-hover: #322C50;
            --bg-light: #F9F7FC;
            --text-main: #FFFFFF;
            --text-muted: #C5C0D8;
            --text-dim: #7A74A0;
            --border-color: #2A2440;
            --border-light: #3D3560;
            --gradient-brand: linear-gradient(135deg, #6C3CE1 0%, #F5A623 100%);
            --gradient-hero: linear-gradient(135deg, rgba(108, 60, 225, 0.6) 0%, rgba(245, 166, 35, 0.3) 100%);
            --shadow-card: 0 12px 40px rgba(108, 60, 225, 0.15), 0 4px 12px rgba(0, 0, 0, 0.2);
            --shadow-card-hover: 0 20px 60px rgba(108, 60, 225, 0.25), 0 8px 24px rgba(0, 0, 0, 0.3);
            --shadow-nav: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.05);
            --shadow-btn: 0 8px 24px rgba(108, 60, 225, 0.4);
            --shadow-badge: 0 4px 12px rgba(245, 166, 35, 0.3);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-btn: 32px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --max-width: 1200px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background: var(--bg-dark);
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        a:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-family);
            font-weight: 600;
            line-height: 1.3;
            color: var(--text-main);
        }
        ::selection {
            background: var(--primary);
            color: #fff;
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--bg-card);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--border-light);
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }
        @media screen and (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Section Spacing ===== */
        .section-padding {
            padding: 80px 0;
        }
        @media screen and (max-width: 768px) {
            .section-padding {
                padding: 48px 0;
            }
        }
        .section-title {
            font-size: 36px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 18px;
            color: var(--text-muted);
            text-align: center;
            max-width: 700px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }
        @media screen and (max-width: 768px) {
            .section-title {
                font-size: 28px;
            }
            .section-subtitle {
                font-size: 16px;
                margin-bottom: 32px;
            }
        }

        /* ===== Navigation Dock ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            display: flex;
            justify-content: center;
            padding: 16px 20px 0;
            pointer-events: none;
        }
        .site-header * {
            pointer-events: auto;
        }
        .nav-dock {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(30, 26, 43, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 48px;
            padding: 8px 24px;
            width: 100%;
            max-width: 1080px;
            box-shadow: var(--shadow-nav);
            transition: var(--transition);
            min-height: 60px;
        }
        .site-header.scrolled .nav-dock {
            background: rgba(20, 17, 28, 0.92);
            min-height: 52px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .nav-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--gradient-brand);
            border-radius: 10px;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
        }
        .nav-logo .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
        }
        .nav-logo .logo-text span {
            color: var(--secondary);
            font-weight: 400;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .nav-menu li a {
            display: block;
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: 24px;
            transition: var(--transition);
            text-decoration: none;
            position: relative;
        }
        .nav-menu li a:hover {
            color: var(--text-main);
            background: rgba(108, 60, 225, 0.15);
        }
        .nav-menu li a.active {
            color: var(--secondary);
            background: rgba(245, 166, 35, 0.1);
        }
        .nav-menu li a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: transparent;
            color: var(--text-muted);
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid transparent;
        }
        .nav-search-btn:hover {
            color: var(--secondary);
            background: rgba(245, 166, 35, 0.1);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 8px 24px;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            text-decoration: none;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(108, 60, 225, 0.3);
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-btn);
            color: #fff;
        }
        .hamburger-btn {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: transparent;
            color: var(--text-main);
            font-size: 18px;
            cursor: pointer;
            transition: var(--transition);
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-light);
        }
        .hamburger-btn:hover {
            background: rgba(108, 60, 225, 0.2);
            color: var(--secondary);
        }

        /* ===== Mobile Menu ===== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 80px;
            left: 20px;
            right: 20px;
            background: rgba(30, 26, 43, 0.96);
            backdrop-filter: blur(20px);
            border-radius: var(--radius-md);
            padding: 16px;
            box-shadow: var(--shadow-nav);
            z-index: 999;
            border: 1px solid var(--border-light);
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: 12px;
            transition: var(--transition);
            text-decoration: none;
        }
        .mobile-menu a:hover {
            background: rgba(108, 60, 225, 0.15);
            color: var(--text-main);
        }
        .mobile-menu a.active {
            color: var(--secondary);
            background: rgba(245, 166, 35, 0.1);
        }

        @media screen and (max-width: 768px) {
            .nav-menu {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .nav-dock {
                padding: 6px 16px;
                min-height: 52px;
                border-radius: 32px;
            }
            .nav-logo .logo-text {
                font-size: 17px;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }
            .site-header {
                padding: 12px 12px 0;
            }
        }
        @media screen and (min-width: 769px) {
            .mobile-menu {
                display: none !important;
            }
            .hamburger-btn {
                display: none !important;
            }
        }

        /* ===== Hero Banner (分类页内页小Hero) ===== */
        .page-hero {
            position: relative;
            padding: 140px 0 80px;
            background: var(--bg-dark);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--gradient-hero);
            z-index: 1;
            opacity: 0.6;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            color: #fff;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .page-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .page-hero .breadcrumb a {
            color: var(--text-muted);
            text-decoration: none;
        }
        .page-hero .breadcrumb a:hover {
            color: var(--secondary);
        }
        .page-hero .breadcrumb .sep {
            color: var(--text-dim);
        }
        .page-hero .breadcrumb .current {
            color: var(--secondary);
        }
        .page-hero .hero-desc {
            font-size: 20px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .page-hero .hero-badges {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .page-hero .hero-badges .badge-item {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(42, 36, 64, 0.7);
            backdrop-filter: blur(8px);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(108, 60, 225, 0.3);
        }
        .page-hero .hero-badges .badge-item .num {
            font-size: 28px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.2;
        }
        .page-hero .hero-badges .badge-item .label {
            font-size: 13px;
            color: var(--text-muted);
        }

        @media screen and (max-width: 768px) {
            .page-hero {
                padding: 110px 0 48px;
                min-height: 280px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .page-hero .hero-desc {
                font-size: 16px;
            }
            .page-hero .hero-badges {
                gap: 12px;
            }
            .page-hero .hero-badges .badge-item {
                padding: 6px 14px;
            }
            .page-hero .hero-badges .badge-item .num {
                font-size: 22px;
            }
        }

        /* ===== 图文混排区块 (左文右图) ===== */
        .content-row {
            display: flex;
            align-items: center;
            gap: 60px;
            margin-bottom: 0;
        }
        .content-row.reverse {
            flex-direction: row-reverse;
        }
        .content-row .text-col {
            flex: 1;
        }
        .content-row .image-col {
            flex: 1;
        }
        .content-row .image-col img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        .content-row h2 {
            font-size: 34px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.3;
        }
        .content-row h2 span {
            color: var(--secondary);
        }
        .content-row p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .content-row .feature-list {
            margin-top: 20px;
        }
        .content-row .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 8px 0;
            font-size: 15px;
            color: var(--text-muted);
        }
        .content-row .feature-list li i {
            color: var(--secondary);
            font-size: 18px;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .content-row .btn-wrap {
            margin-top: 24px;
        }
        .content-row .btn-wrap .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            text-decoration: none;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(108, 60, 225, 0.3);
        }
        .content-row .btn-wrap .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-btn);
            color: #fff;
        }

        @media screen and (max-width: 768px) {
            .content-row {
                flex-direction: column;
                gap: 32px;
            }
            .content-row.reverse {
                flex-direction: column;
            }
            .content-row h2 {
                font-size: 26px;
            }
            .content-row .image-col img {
                aspect-ratio: 16/9;
            }
        }

        /* ===== 服务场景卡片 ===== */
        .scenes-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 16px;
        }
        .scene-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
            border: 1px solid transparent;
            position: relative;
            overflow: hidden;
        }
        .scene-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-brand);
            opacity: 0;
            transition: var(--transition);
        }
        .scene-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: rgba(108, 60, 225, 0.2);
        }
        .scene-card:hover::before {
            opacity: 1;
        }
        .scene-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(108, 60, 225, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 28px;
            color: var(--secondary);
            transition: var(--transition);
        }
        .scene-card:hover .icon-wrap {
            background: rgba(245, 166, 35, 0.15);
            transform: scale(1.05);
        }
        .scene-card h4 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .scene-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        @media screen and (max-width: 1024px) {
            .scenes-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media screen and (max-width: 560px) {
            .scenes-grid {
                grid-template-columns: 1fr;
            }
            .scene-card {
                padding: 24px 20px;
            }
        }

        /* ===== 服务流程 ===== */
        .process-steps {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: center;
            margin-top: 24px;
            counter-reset: step;
        }
        .process-step {
            flex: 1;
            min-width: 180px;
            max-width: 240px;
            text-align: center;
            position: relative;
            counter-increment: step;
        }
        .process-step::after {
            content: '→';
            position: absolute;
            right: -20px;
            top: 30px;
            font-size: 24px;
            color: var(--primary);
            font-weight: 700;
        }
        .process-step:last-child::after {
            display: none;
        }
        .process-step .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin: 0 auto 16px;
            box-shadow: 0 4px 16px rgba(108, 60, 225, 0.3);
        }
        .process-step h5 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        @media screen and (max-width: 768px) {
            .process-steps {
                gap: 24px;
            }
            .process-step {
                min-width: 140px;
                max-width: 180px;
            }
            .process-step::after {
                display: none;
            }
        }
        @media screen and (max-width: 520px) {
            .process-step {
                min-width: 100%;
                max-width: 100%;
                display: flex;
                align-items: center;
                gap: 16px;
                text-align: left;
            }
            .process-step .step-num {
                margin: 0;
                flex-shrink: 0;
                width: 46px;
                height: 46px;
                font-size: 18px;
            }
            .process-step .step-text {
                flex: 1;
            }
            .process-step h5 {
                margin-bottom: 2px;
            }
        }

        /* ===== 数据指标条 ===== */
        .metrics-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: center;
            padding: 48px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            margin: 40px 0;
        }
        .metrics-bar .metric-item {
            text-align: center;
            min-width: 140px;
        }
        .metrics-bar .metric-item .metric-num {
            font-size: 40px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.2;
            letter-spacing: -1px;
        }
        .metrics-bar .metric-item .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        @media screen and (max-width: 640px) {
            .metrics-bar {
                gap: 20px;
                padding: 32px 0;
            }
            .metrics-bar .metric-item {
                min-width: 100px;
            }
            .metrics-bar .metric-item .metric-num {
                font-size: 30px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(108, 60, 225, 0.3);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 500;
            color: var(--text-main);
            transition: var(--transition);
            user-select: none;
            gap: 16px;
        }
        .faq-item .faq-question:hover {
            color: var(--secondary);
        }
        .faq-item .faq-question .faq-icon {
            font-size: 18px;
            color: var(--secondary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(90deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        @media screen and (max-width: 640px) {
            .faq-item .faq-question {
                padding: 14px 18px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 18px;
                font-size: 14px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* ===== CTA区块 ===== */
        .cta-section {
            background: var(--bg-section);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(108, 60, 225, 0.15) 0%, transparent 70%);
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 16px 48px;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 18px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            text-decoration: none;
            transition: var(--transition);
            box-shadow: 0 8px 32px rgba(108, 60, 225, 0.35);
        }
        .cta-section .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(108, 60, 225, 0.5);
            color: #fff;
        }
        .cta-section .cta-badges {
            display: flex;
            justify-content: center;
            gap: 32px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .cta-section .cta-badges span {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .cta-section .cta-badges span i {
            color: var(--secondary);
        }

        @media screen and (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section p {
                font-size: 16px;
            }
            .cta-section .cta-btn {
                padding: 14px 32px;
                font-size: 16px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #14111C;
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .footer-brand .footer-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--gradient-brand);
            border-radius: 10px;
            font-size: 15px;
            font-weight: 700;
            color: #fff;
        }
        .footer-brand .footer-logo span {
            color: var(--secondary);
            font-weight: 400;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-main);
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-col .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .footer-col .contact-item i {
            color: var(--secondary);
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-dim);
        }

        @media screen and (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .site-footer {
                padding: 40px 0 0;
            }
        }

        /* ===== Utility ===== */
        .text-gradient {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-40 {
            margin-top: 40px;
        }
        .text-center {
            text-align: center;
        }

        /* ===== Foundation Overrides ===== */
        .row {
            max-width: var(--max-width);
        }
        .column,
        .columns {
            padding-left: 12px;
            padding-right: 12px;
        }
        @media screen and (max-width: 640px) {
            .column,
            .columns {
                padding-left: 8px;
                padding-right: 8px;
            }
        }

/* roulang page: category2 */
/* ===== Design Variables ===== */
        :root {
            --primary: #6C3CE1;
            --primary-dark: #5A2EC7;
            --secondary: #F5A623;
            --secondary-dark: #D4911E;
            --bg-dark: #14111C;
            --bg-section: #1E1A2B;
            --bg-card: #2A2440;
            --bg-card-hover: #322C4D;
            --bg-light: #F9F7FC;
            --text-white: #FFFFFF;
            --text-muted: #C5C0D8;
            --text-dim: #7A74A0;
            --border-color: #2A2440;
            --border-light: #3D3560;
            --gradient-main: linear-gradient(135deg, #6C3CE1, #F5A623);
            --gradient-hero: linear-gradient(135deg, rgba(108, 60, 225, 0.92), rgba(20, 17, 28, 0.88));
            --gradient-cta: linear-gradient(135deg, #6C3CE1, #F5A623);
            --shadow-card: 0 12px 40px rgba(108, 60, 225, 0.15), 0 4px 12px rgba(0, 0, 0, 0.2);
            --shadow-card-hover: 0 20px 56px rgba(108, 60, 225, 0.25), 0 8px 24px rgba(0, 0, 0, 0.3);
            --shadow-dock: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.05);
            --shadow-btn: 0 8px 24px rgba(108, 60, 225, 0.4);
            --shadow-badge: 0 4px 12px rgba(245, 166, 35, 0.3);
            --radius-card: 24px;
            --radius-card-sm: 16px;
            --radius-btn: 32px;
            --radius-input: 16px;
            --radius-dock: 48px;
            --radius-badge: 12px;
            --container-width: 1200px;
            --nav-height: 72px;
            --nav-height-scroll: 60px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-white);
            background: var(--bg-dark);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--secondary);
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        ul {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: "Noto Sans SC", "PingFang SC", sans-serif;
            font-weight: 600;
            line-height: 1.3;
            color: var(--text-white);
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Foundation Overrides ===== */
        .row {
            max-width: var(--container-width);
            margin: 0 auto;
        }

        .column,
        .columns {
            padding-left: 12px;
            padding-right: 12px;
        }

        /* ===== Navigation Dock ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 16px 20px 0;
            display: flex;
            justify-content: center;
            pointer-events: none;
        }

        .nav-dock {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1080px;
            background: rgba(30, 26, 43, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-dock);
            padding: 0 24px;
            height: var(--nav-height);
            box-shadow: var(--shadow-dock);
            pointer-events: auto;
            transition: var(--transition);
        }

        .site-header.scrolled .nav-dock {
            height: var(--nav-height-scroll);
            background: rgba(30, 26, 43, 0.92);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            color: var(--text-white);
            text-decoration: none;
            font-size: 22px;
            font-weight: 700;
        }

        .nav-logo:hover {
            color: var(--text-white);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--gradient-main);
            border-radius: 10px;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
        }

        .logo-text span {
            color: var(--secondary);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li a {
            display: block;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-menu li a:hover {
            color: var(--text-white);
            background: rgba(108, 60, 225, 0.15);
        }

        .nav-menu li a.active {
            color: var(--secondary);
            background: rgba(245, 166, 35, 0.1);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: none;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .nav-search-btn:hover {
            background: rgba(108, 60, 225, 0.2);
            color: var(--primary);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 10px 24px;
            background: var(--gradient-main);
            color: #fff;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            white-space: nowrap;
        }

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

        .hamburger-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: none;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
            font-size: 18px;
            cursor: pointer;
            transition: var(--transition);
            align-items: center;
            justify-content: center;
        }

        .hamburger-btn:hover {
            background: rgba(108, 60, 225, 0.2);
            color: var(--primary);
        }

        /* Mobile Menu */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 88px;
            left: 20px;
            right: 20px;
            background: rgba(30, 26, 43, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-card);
            padding: 16px;
            box-shadow: var(--shadow-dock);
            z-index: 999;
            flex-direction: column;
            gap: 4px;
            border: 1px solid var(--border-light);
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-card-sm);
            color: var(--text-muted);
            font-size: 16px;
            font-weight: 500;
            transition: var(--transition);
        }

        .mobile-menu a:hover {
            background: rgba(108, 60, 225, 0.15);
            color: var(--text-white);
        }

        .mobile-menu a.active {
            color: var(--secondary);
            background: rgba(245, 166, 35, 0.1);
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }

            .hamburger-btn {
                display: flex;
            }

            .nav-cta {
                display: none;
            }

            .nav-dock {
                padding: 0 16px;
                height: 60px;
            }

            .site-header {
                padding: 12px 12px 0;
            }

            .logo-text {
                font-size: 17px;
            }

            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }

            .mobile-menu {
                top: 72px;
                left: 12px;
                right: 12px;
            }
        }

        @media (max-width: 520px) {
            .nav-dock {
                height: 56px;
                padding: 0 12px;
            }

            .logo-text {
                font-size: 15px;
            }

            .logo-icon {
                width: 26px;
                height: 26px;
                font-size: 12px;
            }

            .nav-search-btn {
                width: 34px;
                height: 34px;
                font-size: 14px;
            }

            .hamburger-btn {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }

            .site-header {
                padding: 8px 8px 0;
            }

            .mobile-menu {
                top: 64px;
                left: 8px;
                right: 8px;
            }
        }

        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            min-height: 60vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 140px 0 80px;
            background: var(--bg-dark);
            overflow: hidden;
        }

        .category-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.3;
            z-index: 0;
        }

        .category-hero-overlay {
            position: absolute;
            inset: 0;
            background: var(--gradient-hero);
            z-index: 1;
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .category-hero h1 {
            font-size: 52px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .category-hero h1 span {
            background: var(--gradient-main);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-hero .hero-sub {
            font-size: 20px;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 32px;
            line-height: 1.6;
        }

        .category-hero .hero-metrics {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 16px;
        }

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

        .hero-metric .num {
            font-size: 32px;
            font-weight: 700;
            color: var(--secondary);
            display: block;
        }

        .hero-metric .label {
            font-size: 14px;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .category-hero {
                min-height: 50vh;
                padding: 120px 0 60px;
            }

            .category-hero h1 {
                font-size: 34px;
            }

            .category-hero .hero-sub {
                font-size: 17px;
            }

            .hero-metric .num {
                font-size: 26px;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 28px;
            }

            .category-hero .hero-sub {
                font-size: 15px;
            }

            .category-hero .hero-metrics {
                gap: 24px;
            }

            .hero-metric .num {
                font-size: 22px;
            }
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }

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

        .section-title {
            font-size: 36px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 18px;
            color: var(--text-muted);
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }

            .section-title {
                font-size: 28px;
            }

            .section-subtitle {
                font-size: 16px;
                margin-bottom: 32px;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding: 40px 0;
            }

            .section-title {
                font-size: 24px;
            }
        }

        /* ===== Solution Intro (上文下图) ===== */
        .solution-intro {
            padding: 80px 0 40px;
        }

        .solution-intro .intro-text {
            max-width: 800px;
            margin: 0 auto 40px;
            text-align: center;
        }

        .solution-intro .intro-text h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .solution-intro .intro-text p {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .solution-intro .intro-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            max-width: 900px;
            margin: 0 auto;
        }

        .solution-intro .intro-image img {
            width: 100%;
            height: auto;
            display: block;
        }

        @media (max-width: 768px) {
            .solution-intro {
                padding: 56px 0 24px;
            }

            .solution-intro .intro-text h2 {
                font-size: 26px;
            }

            .solution-intro .intro-text p {
                font-size: 15px;
            }
        }

        /* ===== Solution Cards ===== */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .solution-card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            padding: 32px 24px 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .solution-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(108, 60, 225, 0.2);
            background: var(--bg-card-hover);
        }

        .solution-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-card-sm);
            background: rgba(108, 60, 225, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .solution-card:hover .icon-wrap {
            background: var(--gradient-main);
            color: #fff;
        }

        .solution-card h4 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .solution-card p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .solution-card .tag {
            display: inline-block;
            margin-top: 16px;
            padding: 4px 14px;
            border-radius: var(--radius-btn);
            background: rgba(245, 166, 35, 0.12);
            color: var(--secondary);
            font-size: 13px;
            font-weight: 500;
        }

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

        @media (max-width: 640px) {
            .solutions-grid {
                grid-template-columns: 1fr;
            }

            .solution-card {
                padding: 24px 20px;
            }
        }

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

        .scenario-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--bg-card);
            border-radius: var(--radius-card-sm);
            padding: 24px 20px;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .scenario-item:hover {
            border-color: rgba(108, 60, 225, 0.15);
            background: var(--bg-card-hover);
        }

        .scenario-item .s-num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--gradient-main);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .scenario-item .s-content h5 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .scenario-item .s-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

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

        @media (max-width: 520px) {
            .scenario-item {
                padding: 18px 16px;
                flex-direction: column;
                gap: 12px;
            }

            .scenario-item .s-num {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }

            .scenario-item .s-content h5 {
                font-size: 16px;
            }
        }

        /* ===== Process ===== */
        .process-steps {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            counter-reset: step;
        }

        .process-step {
            flex: 1 1 180px;
            max-width: 220px;
            text-align: center;
            padding: 28px 16px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            position: relative;
        }

        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .process-step .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--gradient-main);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin: 0 auto 16px;
        }

        .process-step h5 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .process-step::after {
            content: "→";
            position: absolute;
            right: -18px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 22px;
            color: var(--secondary);
            font-weight: 700;
        }

        .process-step:last-child::after {
            display: none;
        }

        @media (max-width: 768px) {
            .process-steps {
                gap: 12px;
            }

            .process-step {
                flex: 1 1 140px;
                max-width: 180px;
                padding: 20px 12px 18px;
            }

            .process-step::after {
                display: none;
            }

            .process-step .step-num {
                width: 40px;
                height: 40px;
                font-size: 17px;
            }
        }

        @media (max-width: 520px) {
            .process-step {
                flex: 1 1 100%;
                max-width: 100%;
                display: flex;
                align-items: center;
                gap: 16px;
                text-align: left;
                padding: 16px 18px;
            }

            .process-step .step-num {
                margin: 0;
                flex-shrink: 0;
            }
        }

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

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-card-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-light);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            cursor: pointer;
            user-select: none;
            transition: var(--transition);
        }

        .faq-question h5 {
            font-size: 17px;
            font-weight: 500;
            margin: 0;
            color: var(--text-white);
        }

        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--secondary);
            transition: var(--transition);
            flex-shrink: 0;
            margin-left: 16px;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(90deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        @media (max-width: 520px) {
            .faq-question {
                padding: 14px 16px;
            }

            .faq-question h5 {
                font-size: 15px;
            }

            .faq-answer {
                padding: 0 16px;
            }

            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-box {
            background: var(--gradient-main);
            border-radius: var(--radius-card);
            padding: 56px 48px;
            text-align: center;
            box-shadow: 0 16px 56px rgba(108, 60, 225, 0.3);
            position: relative;
            overflow: hidden;
        }

        .cta-box::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            pointer-events: none;
        }

        .cta-box h3 {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-box p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }

        .cta-box .cta-btn {
            display: inline-flex;
            align-items: center;
            padding: 16px 40px;
            background: #fff;
            color: var(--primary);
            border-radius: var(--radius-btn);
            font-size: 17px;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }

        .cta-box .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
            color: var(--primary-dark);
        }

        .cta-box .cta-badges {
            display: flex;
            justify-content: center;
            gap: 28px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .cta-box .cta-badges span {
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .cta-box .cta-badges i {
            color: rgba(255, 255, 255, 0.7);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 56px 0;
            }

            .cta-box {
                padding: 40px 24px;
            }

            .cta-box h3 {
                font-size: 26px;
            }

            .cta-box p {
                font-size: 16px;
            }

            .cta-box .cta-btn {
                padding: 14px 32px;
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .cta-box {
                padding: 32px 18px;
            }

            .cta-box h3 {
                font-size: 22px;
            }

            .cta-box .cta-badges {
                gap: 16px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #14111C;
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .footer-brand .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            font-size: 16px;
        }

        .footer-brand .footer-logo span {
            color: var(--secondary);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 16px;
        }

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

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 12px;
        }

        .contact-item i {
            width: 20px;
            color: var(--primary);
            font-size: 15px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-dim);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-brand p {
                max-width: 100%;
            }

            .site-footer {
                padding: 40px 0 0;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                gap: 24px;
            }

            .footer-brand .footer-logo {
                font-size: 19px;
            }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--bg-card);
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--border-light);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-area {
            padding: 100px 0 0;
            background: var(--bg-dark);
        }

        .breadcrumb-area .breadcrumbs {
            padding: 12px 0;
            font-size: 14px;
            color: var(--text-muted);
        }

        .breadcrumb-area .breadcrumbs a {
            color: var(--text-muted);
        }

        .breadcrumb-area .breadcrumbs a:hover {
            color: var(--primary);
        }

        .breadcrumb-area .breadcrumbs .current {
            color: var(--secondary);
        }

        .breadcrumb-area .breadcrumbs .divider {
            margin: 0 8px;
            color: var(--text-dim);
        }

/* roulang page: category3 */
/* ===== CSS 设计变量 ===== */
        :root {
            --primary: #6C3CE1;
            --primary-dark: #5A2FC0;
            --secondary: #F5A623;
            --secondary-light: #FFB84D;
            --bg-dark: #14111C;
            --bg-section: #1E1A2B;
            --bg-card: #2A2440;
            --bg-card-hover: #352F4D;
            --bg-input: #2A2440;
            --border-color: #3D3560;
            --text-main: #FFFFFF;
            --text-secondary: #C5C0D8;
            --text-muted: #7A74A0;
            --text-accent: #F5A623;
            --gradient-brand: linear-gradient(135deg, #6C3CE1 0%, #F5A623 100%);
            --gradient-hero: radial-gradient(ellipse at center, rgba(108, 60, 225, 0.3) 0%, rgba(20, 17, 28, 0.9) 70%);
            --shadow-card: 0 12px 40px rgba(108, 60, 225, 0.15), 0 4px 12px rgba(0, 0, 0, 0.2);
            --shadow-card-hover: 0 20px 56px rgba(108, 60, 225, 0.25), 0 8px 24px rgba(0, 0, 0, 0.3);
            --shadow-btn: 0 8px 24px rgba(108, 60, 225, 0.4);
            --shadow-badge: 0 4px 12px rgba(245, 166, 35, 0.3);
            --shadow-dock: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.05);
            --radius-card: 24px;
            --radius-card-sm: 16px;
            --radius-btn: 32px;
            --radius-input: 16px;
            --radius-dock: 48px;
            --radius-badge: 12px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-heading: "Noto Sans SC", "PingFang SC", sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
            --gap-section: 100px;
            --gap-section-mobile: 64px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background: var(--bg-dark);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        a:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 600;
            line-height: 1.3;
            color: var(--text-main);
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 导航 Dock ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            display: flex;
            justify-content: center;
            padding: 16px 20px 0;
            pointer-events: none;
        }

        .nav-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1080px;
            background: rgba(30, 26, 43, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-dock);
            padding: 12px 24px;
            box-shadow: var(--shadow-dock);
            transition: var(--transition);
        }

        .site-header.scrolled .nav-dock {
            padding: 8px 24px;
            background: rgba(30, 26, 43, 0.92);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
            color: var(--text-main);
        }
        .nav-logo:hover {
            color: var(--text-main);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--gradient-brand);
            border-radius: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .logo-text {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 22px;
            color: var(--text-main);
            letter-spacing: 0.5px;
        }
        .logo-text span {
            color: var(--secondary);
            font-weight: 400;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
        }
        .nav-menu li a {
            display: block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 24px;
            transition: var(--transition);
            position: relative;
            text-decoration: none;
        }
        .nav-menu li a:hover {
            color: var(--text-main);
            background: rgba(108, 60, 225, 0.15);
        }
        .nav-menu li a.active {
            color: var(--secondary);
            background: rgba(245, 166, 35, 0.1);
        }
        .nav-menu li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: transparent;
            color: var(--text-secondary);
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            border: none;
        }
        .nav-search-btn:hover {
            background: rgba(108, 60, 225, 0.2);
            color: var(--primary);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 10px 24px;
            background: var(--gradient-brand);
            color: #fff !important;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            text-decoration: none;
            box-shadow: 0 4px 16px rgba(108, 60, 225, 0.3);
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-btn);
            color: #fff !important;
        }
        .nav-cta:active {
            transform: scale(0.97);
        }

        .hamburger-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: transparent;
            color: var(--text-main);
            font-size: 20px;
            cursor: pointer;
            border: none;
            align-items: center;
            justify-content: center;
        }
        .hamburger-btn:hover {
            background: rgba(108, 60, 225, 0.15);
        }

        /* 移动端菜单 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 80px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 40px);
            max-width: 480px;
            background: rgba(30, 26, 43, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: 24px;
            padding: 20px;
            box-shadow: var(--shadow-dock);
            z-index: 999;
            flex-direction: column;
            gap: 6px;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 20px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 16px;
            transition: var(--transition);
            text-decoration: none;
        }
        .mobile-menu a:hover {
            background: rgba(108, 60, 225, 0.15);
            color: var(--text-main);
        }
        .mobile-menu a.active {
            color: var(--secondary);
            background: rgba(245, 166, 35, 0.1);
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .nav-dock {
                padding: 10px 16px;
                border-radius: 32px;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .site-header {
                padding: 12px 12px 0;
            }
            .mobile-menu {
                width: calc(100% - 24px);
                top: 72px;
            }
        }

        @media (max-width: 640px) {
            .nav-dock {
                padding: 8px 12px;
                border-radius: 28px;
            }
            .logo-text {
                font-size: 16px;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 12px;
                border-radius: 8px;
            }
            .nav-search-btn {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
            .hamburger-btn {
                width: 36px;
                height: 36px;
                font-size: 18px;
            }
        }

        /* ===== Hero 全宽图 + 文字叠加 ===== */
        .hero-overlay {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: var(--bg-dark);
            overflow: hidden;
            margin-top: 0;
            padding-top: 80px;
        }
        .hero-overlay-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            filter: brightness(0.5) saturate(0.8);
            z-index: 0;
        }
        .hero-overlay::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--gradient-hero);
            z-index: 1;
        }
        .hero-overlay-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            padding: 60px 20px;
        }
        .hero-overlay-content h1 {
            font-size: 52px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            text-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .hero-overlay-content h1 span {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-overlay-content p {
            font-size: 20px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .hero-overlay-content .hero-badges {
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 24px;
        }
        .hero-overlay-content .hero-badges .badge-item {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(8px);
            padding: 12px 24px;
            border-radius: var(--radius-badge);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero-overlay-content .hero-badges .badge-item .num {
            font-size: 28px;
            font-weight: 700;
            color: var(--secondary);
        }
        .hero-overlay-content .hero-badges .badge-item .label {
            font-size: 14px;
            color: var(--text-secondary);
        }

        @media (max-width: 768px) {
            .hero-overlay {
                min-height: 60vh;
                padding-top: 70px;
            }
            .hero-overlay-content h1 {
                font-size: 36px;
            }
            .hero-overlay-content p {
                font-size: 17px;
            }
            .hero-overlay-content .hero-badges {
                gap: 12px;
            }
            .hero-overlay-content .hero-badges .badge-item {
                padding: 10px 18px;
            }
            .hero-overlay-content .hero-badges .badge-item .num {
                font-size: 22px;
            }
            .hero-overlay-content .hero-badges .badge-item .label {
                font-size: 13px;
            }
        }

        @media (max-width: 640px) {
            .hero-overlay {
                min-height: 50vh;
                padding-top: 60px;
            }
            .hero-overlay-content h1 {
                font-size: 28px;
            }
            .hero-overlay-content p {
                font-size: 15px;
            }
            .hero-overlay-content .hero-badges .badge-item {
                padding: 8px 14px;
            }
            .hero-overlay-content .hero-badges .badge-item .num {
                font-size: 18px;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section);
        }

        .section-title {
            font-size: 38px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 16px;
            color: var(--text-main);
        }
        .section-subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            text-align: center;
            max-width: 640px;
            margin: 0 auto 56px;
            line-height: 1.8;
        }
        .section-title span {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .section-title {
                font-size: 30px;
            }
            .section-subtitle {
                font-size: 16px;
                margin-bottom: 40px;
            }
        }

        @media (max-width: 640px) {
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .section-subtitle {
                font-size: 15px;
                margin-bottom: 32px;
            }
        }

        /* ===== 步骤/流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 24px;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .step-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-brand);
            opacity: 0;
            transition: var(--transition);
        }
        .step-card:hover::before {
            opacity: 1;
        }
        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            background: var(--bg-card-hover);
        }
        .step-card .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .step-card h4 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-main);
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-card {
                padding: 24px 20px;
            }
            .step-card .step-num {
                width: 48px;
                height: 48px;
                font-size: 18px;
            }
            .step-card h4 {
                font-size: 18px;
            }
        }

        @media (max-width: 640px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ===== 适用场景 ===== */
        .scenes-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .scene-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-card-sm);
            padding: 28px 24px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
            align-items: flex-start;
        }
        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            background: var(--bg-card-hover);
        }
        .scene-card .scene-icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(108, 60, 225, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--primary);
        }
        .scene-card .scene-text h4 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .scene-card .scene-text p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .scenes-grid {
                grid-template-columns: 1fr;
            }
            .scene-card {
                padding: 24px 20px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-card-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 500;
            color: var(--text-main);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            gap: 16px;
        }
        .faq-question .faq-arrow {
            font-size: 14px;
            color: var(--secondary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question .faq-arrow.open {
            transform: rotate(90deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-answer.open {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        @media (max-width: 640px) {
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-answer {
                font-size: 14px;
            }
            .faq-answer.open {
                padding: 0 18px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-section);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(108, 60, 225, 0.08), transparent 60%);
            animation: ctaGlow 8s ease-in-out infinite alternate;
        }
        @keyframes ctaGlow {
            0% {
                transform: translate(0, 0);
            }
            100% {
                transform: translate(5%, 5%);
            }
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .cta-section h2 span {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .cta-section p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 540px;
            margin: 0 auto 32px;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 16px 40px;
            background: var(--gradient-brand);
            color: #fff !important;
            font-size: 17px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            box-shadow: 0 8px 32px rgba(108, 60, 225, 0.35);
            transition: var(--transition);
            text-decoration: none;
        }
        .cta-btn:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 48px rgba(108, 60, 225, 0.5);
            color: #fff !important;
        }
        .cta-btn:active {
            transform: scale(0.97);
        }
        .cta-btn i {
            font-size: 18px;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 60px 0;
            }
            .cta-section h2 {
                font-size: 30px;
            }
            .cta-section p {
                font-size: 16px;
            }
            .cta-btn {
                padding: 14px 32px;
                font-size: 15px;
            }
        }

        @media (max-width: 640px) {
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-btn {
                padding: 12px 28px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 内容区块（图文混排） ===== */
        .content-row {
            display: flex;
            align-items: center;
            gap: 48px;
        }
        .content-row.reverse {
            flex-direction: row-reverse;
        }
        .content-row .content-text {
            flex: 1;
        }
        .content-row .content-text h3 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-main);
        }
        .content-row .content-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .content-row .content-text .data-badge-row {
            display: flex;
            gap: 20px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .content-row .content-text .data-badge-row .data-badge {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            background: rgba(245, 166, 35, 0.08);
            border-radius: var(--radius-badge);
            border: 1px solid rgba(245, 166, 35, 0.15);
        }
        .content-row .content-text .data-badge-row .data-badge .num {
            font-size: 24px;
            font-weight: 700;
            color: var(--secondary);
        }
        .content-row .content-text .data-badge-row .data-badge .label {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .content-row .content-image {
            flex: 1;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .content-row .content-image img {
            width: 100%;
            height: auto;
            display: block;
        }

        @media (max-width: 768px) {
            .content-row {
                flex-direction: column;
                gap: 32px;
            }
            .content-row.reverse {
                flex-direction: column;
            }
            .content-row .content-text h3 {
                font-size: 26px;
            }
            .content-row .content-text p {
                font-size: 15px;
            }
            .content-row .content-text .data-badge-row .data-badge .num {
                font-size: 20px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 20px;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .footer-brand .footer-logo .logo-icon {
            width: 32px;
            height: 32px;
            font-size: 14px;
            border-radius: 8px;
        }
        .footer-brand .footer-logo span:last-child {
            color: var(--secondary);
            font-weight: 400;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 20px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: var(--transition);
            text-decoration: none;
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 14px;
        }
        .contact-item i {
            width: 20px;
            color: var(--primary);
            font-size: 16px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .site-footer {
                padding: 40px 0 0;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                gap: 28px;
            }
            .footer-col h5 {
                margin-bottom: 14px;
            }
            .footer-bottom {
                padding: 18px 0;
                font-size: 12px;
            }
        }

        /* ===== 通用工具 ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 16px;
        }
        .mt-2 {
            margin-top: 32px;
        }
        .mb-1 {
            margin-bottom: 16px;
        }
        .mb-2 {
            margin-bottom: 32px;
        }
        .gap-1 {
            gap: 16px;
        }
        .gap-2 {
            gap: 24px;
        }

        /* ===== 滚动条美化 ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary);
        }

        /* ===== 选中文本 ===== */
        ::selection {
            background: rgba(108, 60, 225, 0.3);
            color: #fff;
        }

        /* ===== 导航 active 状态同步 ===== */
        .nav-menu li a[data-slug="pg-guide"] {
            color: var(--secondary);
            background: rgba(245, 166, 35, 0.1);
        }
        .nav-menu li a[data-slug="pg-guide"]::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
        }

        .mobile-menu a[data-slug="pg-guide"] {
            color: var(--secondary);
            background: rgba(245, 166, 35, 0.1);
        }