/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0a2540;
            --primary-light: #1a3a5c;
            --primary-dark: #061a2e;
            --secondary: #00b4d8;
            --secondary-light: #48cae4;
            --accent: #ff6b35;
            --accent-hover: #e85d2c;
            --success: #06d6a0;
            --bg-body: #f6f9fc;
            --bg-card: #ffffff;
            --bg-dark: #0a2540;
            --bg-section-alt: #edf2f7;
            --text-primary: #0f172a;
            --text-secondary: #334155;
            --text-muted: #64748b;
            --text-light: #f1f5f9;
            --text-white: #ffffff;
            --border-color: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(10, 37, 64, 0.06);
            --shadow-md: 0 6px 24px rgba(10, 37, 64, 0.08);
            --shadow-lg: 0 12px 40px rgba(10, 37, 64, 0.12);
            --shadow-xl: 0 20px 60px rgba(10, 37, 64, 0.15);
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
            --dock-radius: 60px;
        }

        /* ===== 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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-body);
        }
        a { color: var(--secondary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary-light); }
        a:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.25; color: var(--text-primary); }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2.2rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.2rem; }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        .section-padding { padding: 90px 0; }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex; align-items: center; gap: 10px;
            padding: 14px 34px; border-radius: 50px;
            font-weight: 600; font-size: 1rem;
            border: none; cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            line-height: 1.2;
        }
        .btn:focus-visible { outline: 2px solid var(--secondary); outline-offset: 3px; }
        .btn-primary {
            background: var(--primary);
            color: var(--text-white);
            box-shadow: 0 4px 16px rgba(10, 37, 64, 0.25);
        }
        .btn-primary:hover { background: var(--primary-light); color: var(--text-white); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(10, 37, 64, 0.3); }
        .btn-secondary {
            background: var(--secondary);
            color: var(--text-white);
            box-shadow: 0 4px 16px rgba(0, 180, 216, 0.3);
        }
        .btn-secondary:hover { background: #0098b8; color: var(--text-white); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0, 180, 216, 0.35); }
        .btn-accent {
            background: var(--accent);
            color: var(--text-white);
            box-shadow: 0 4px 16px rgba(255, 107, 53, 0.35);
        }
        .btn-accent:hover { background: var(--accent-hover); color: var(--text-white); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(255, 107, 53, 0.4); }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover { background: var(--primary); color: var(--text-white); transform: translateY(-2px); }
        .btn-sm { padding: 10px 22px; font-size: 0.9rem; }
        .btn-lg { padding: 18px 44px; font-size: 1.1rem; }

        /* ===== 徽章 ===== */
        .badge {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: rgba(0, 180, 216, 0.12);
            color: var(--secondary);
        }
        .badge-primary { background: rgba(10, 37, 64, 0.08); color: var(--primary); }
        .badge-accent { background: rgba(255, 107, 53, 0.12); color: var(--accent); }
        .badge-success { background: rgba(6, 214, 160, 0.12); color: #059669; }

        /* ===== 浮动Dock导航 ===== */
        .site-header {
            position: fixed;
            top: 20px;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 20px;
            pointer-events: none;
        }
        .nav-dock {
            max-width: 820px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px) saturate(1.4);
            -webkit-backdrop-filter: blur(18px) saturate(1.4);
            border-radius: var(--dock-radius);
            box-shadow: 0 4px 30px rgba(10, 37, 64, 0.08), 0 0 0 1px rgba(255, 255, 255, 0.6);
            padding: 0 28px;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            pointer-events: auto;
            transition: var(--transition);
        }
        .nav-dock.scrolled {
            box-shadow: 0 6px 40px rgba(10, 37, 64, 0.12), 0 0 0 1px rgba(255, 255, 255, 0.8);
        }
        .nav-logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }
        .nav-logo a { color: inherit; text-decoration: none; }
        .nav-logo a:hover { color: var(--primary); }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links a {
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            text-decoration: none;
            position: relative;
        }
        .nav-links a:hover { background: rgba(10, 37, 64, 0.06); color: var(--primary); }
        .nav-links a.active {
            background: var(--primary);
            color: var(--text-white);
            font-weight: 600;
        }
        .nav-links a.active:hover { background: var(--primary-light); color: var(--text-white); }
        .nav-cta-mobile { display: none; }
        .nav-hamburger { display: none; background: none; border: none; font-size: 1.5rem; color: var(--primary); cursor: pointer; padding: 6px; border-radius: 8px; }
        .nav-hamburger:focus-visible { outline: 2px solid var(--secondary); }

        /* 移动端菜单 overlay */
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.35);
            z-index: 999;
            backdrop-filter: blur(4px);
        }
        .mobile-menu-overlay.open { display: block; }
        .mobile-menu-panel {
            position: fixed;
            top: 0; left: 0; bottom: 0;
            width: 300px;
            background: var(--bg-card);
            box-shadow: var(--shadow-xl);
            z-index: 1001;
            padding: 30px 28px;
            transform: translateX(-100%);
            transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            flex-direction: column;
        }
        .mobile-menu-panel.open { transform: translateX(0); }
        .mobile-menu-panel .close-btn {
            align-self: flex-end;
            background: none; border: none; font-size: 1.8rem;
            color: var(--text-secondary); cursor: pointer;
            padding: 4px 8px; border-radius: 8px;
        }
        .mobile-menu-panel .close-btn:hover { color: var(--primary); }
        .mobile-menu-panel a {
            display: block;
            padding: 14px 0;
            font-size: 1.1rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-light);
            text-decoration: none;
        }
        .mobile-menu-panel a:hover { color: var(--primary); }
        .mobile-menu-panel a.active { color: var(--primary); font-weight: 700; }
        .mobile-menu-panel .mobile-cta {
            margin-top: auto;
            padding-top: 20px;
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            background: var(--primary-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.3;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 37, 64, 0.85) 0%, rgba(10, 37, 64, 0.4) 60%, rgba(0, 180, 216, 0.15) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 140px 0 100px;
        }
        .hero-content .container {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 24px;
            border-radius: 50px;
            background: rgba(0, 180, 216, 0.18);
            color: var(--secondary-light);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
        }
        .hero h1 {
            font-size: 3.4rem;
            font-weight: 800;
            color: var(--text-white);
            max-width: 820px;
            margin-bottom: 24px;
            letter-spacing: -0.5px;
            line-height: 1.15;
        }
        .hero h1 span { color: var(--secondary-light); }
        .hero-sub {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.75);
            max-width: 620px;
            margin-bottom: 40px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 60px;
            padding-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.12);
            flex-wrap: wrap;
            justify-content: center;
        }
        .hero-stat-item { text-align: center; }
        .hero-stat-item .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
        }
        .hero-stat-item .num span { color: var(--secondary-light); }
        .hero-stat-item .label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            margin-top: 4px;
        }

        /* ===== 板块通用 ===== */
        .section-title-wrap {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }
        .section-title-wrap h2 {
            margin-bottom: 16px;
        }
        .section-title-wrap .sub {
            font-size: 1.1rem;
            color: var(--text-muted);
        }
        .section-title-wrap .badge { margin-bottom: 16px; }

        .bg-alt { background: var(--bg-section-alt); }
        .bg-dark-section { background: var(--bg-dark); }
        .bg-dark-section h2, .bg-dark-section .sub { color: var(--text-light); }
        .bg-dark-section .sub { opacity: 0.7; }

        /* ===== 服务卡片 ===== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 40px 32px 36px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            text-align: center;
        }
        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .service-card .icon-wrap {
            width: 68px; height: 68px;
            margin: 0 auto 20px;
            display: flex; align-items: center; justify-content: center;
            border-radius: 18px;
            font-size: 1.8rem;
            color: var(--text-white);
            background: var(--primary);
        }
        .service-card .icon-wrap.icon-secondary { background: var(--secondary); }
        .service-card .icon-wrap.icon-accent { background: var(--accent); }
        .service-card h3 { font-size: 1.25rem; margin-bottom: 12px; }
        .service-card p { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 0; }

        /* ===== 特色图文区块 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .feature-grid.reverse { direction: rtl; }
        .feature-grid.reverse > * { direction: ltr; }
        .feature-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            background: var(--bg-card);
        }
        .feature-image img { width: 100%; height: auto; display: block; }
        .feature-text .badge { margin-bottom: 16px; }
        .feature-text h2 { font-size: 2rem; margin-bottom: 20px; }
        .feature-text p { font-size: 1.05rem; color: var(--text-secondary); }
        .feature-list { margin-top: 24px; }
        .feature-list li {
            display: flex; align-items: flex-start; gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 1rem;
            color: var(--text-secondary);
        }
        .feature-list li:last-child { border-bottom: none; }
        .feature-list li i { color: var(--success); font-size: 1.1rem; margin-top: 3px; flex-shrink: 0; }

        /* ===== 资讯/内容列表 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        .news-card .thumb {
            width: 100%; height: 200px;
            object-fit: cover;
            background: var(--bg-section-alt);
        }
        .news-card .body {
            padding: 24px 26px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .news-card .meta .cat {
            background: rgba(0,180,216,0.1);
            color: var(--secondary);
            padding: 2px 12px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.75rem;
        }
        .news-card .meta .date i { margin-right: 4px; }
        .news-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
            flex: 1;
        }
        .news-card h3 a { color: var(--text-primary); text-decoration: none; }
        .news-card h3 a:hover { color: var(--secondary); }
        .news-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .read-more {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--secondary);
            text-decoration: none;
            display: inline-flex; align-items: center; gap: 6px;
        }
        .news-card .read-more:hover { gap: 10px; }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
            font-size: 1.1rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }

        /* ===== 数据/统计板块 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .stat-card {
            text-align: center;
            padding: 40px 20px;
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.08);
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }
        .stat-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
        .stat-card .num {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-card .num span { color: var(--secondary-light); }
        .stat-card .label {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.65);
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .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 { box-shadow: var(--shadow-sm); }
        .faq-question {
            padding: 20px 28px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:focus-visible { outline: 2px solid var(--secondary); outline-offset: -2px; border-radius: var(--radius-md); }
        .faq-question i { transition: var(--transition); color: var(--text-muted); font-size: 1.1rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); color: var(--secondary); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 28px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 28px 24px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(0,180,216,0.15) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 80px 0;
        }
        .cta-content h2 {
            color: var(--text-white);
            font-size: 2.4rem;
            margin-bottom: 16px;
        }
        .cta-content p {
            color: rgba(255,255,255,0.7);
            font-size: 1.15rem;
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-content .btn { font-size: 1.1rem; padding: 16px 44px; }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            display: block;
        }
        .footer-brand p {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.55);
            max-width: 340px;
            line-height: 1.7;
        }
        .footer-col h4 {
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-col a {
            display: block;
            padding: 6px 0;
            color: rgba(255,255,255,0.55);
            font-size: 0.9rem;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--secondary-light); padding-left: 4px; }
        .footer-bottom {
            text-align: center;
            padding-top: 28px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .service-grid { grid-template-columns: repeat(2, 1fr); }
            .news-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
            .feature-grid { grid-template-columns: 1fr; gap: 30px; }
            .feature-grid.reverse { direction: ltr; }
            .hero h1 { font-size: 2.8rem; }
        }

        @media (max-width: 768px) {
            .site-header { top: 12px; padding: 0 12px; }
            .nav-dock { padding: 0 18px; height: 62px; border-radius: 40px; }
            .nav-logo { font-size: 1.05rem; }
            .nav-links { display: none; }
            .nav-hamburger { display: flex; align-items: center; justify-content: center; }
            .nav-cta-mobile { display: flex; }
            .hero { min-height: 90vh; }
            .hero h1 { font-size: 2.2rem; }
            .hero-sub { font-size: 1rem; }
            .hero-stats { gap: 24px; }
            .hero-stat-item .num { font-size: 1.8rem; }
            .section-padding { padding: 60px 0; }
            .section-title-wrap { margin-bottom: 40px; }
            .section-title-wrap h2 { font-size: 1.8rem; }
            .service-grid { grid-template-columns: 1fr; gap: 20px; }
            .service-card { padding: 30px 22px; }
            .news-grid { grid-template-columns: 1fr; gap: 20px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-card { padding: 28px 16px; }
            .stat-card .num { font-size: 2.2rem; }
            .faq-question { padding: 16px 20px; font-size: 0.95rem; }
            .cta-content h2 { font-size: 1.8rem; }
            .cta-content p { font-size: 1rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .feature-text h2 { font-size: 1.6rem; }
            .mobile-menu-panel { width: 280px; }
        }

        @media (max-width: 520px) {
            .hero h1 { font-size: 1.7rem; }
            .hero-sub { font-size: 0.9rem; }
            .hero-actions { flex-direction: column; align-items: center; }
            .btn { padding: 12px 28px; font-size: 0.9rem; }
            .hero-stats { margin-top: 40px; padding-top: 24px; gap: 16px; }
            .hero-stat-item .num { font-size: 1.4rem; }
            .hero-stat-item .label { font-size: 0.8rem; }
            .section-title-wrap h2 { font-size: 1.5rem; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-card .num { font-size: 1.8rem; }
            .news-card .thumb { height: 160px; }
            .news-card .body { padding: 18px 20px; }
            .nav-logo { font-size: 0.95rem; }
            .nav-dock { height: 56px; padding: 0 14px; border-radius: 32px; }
        }

        /* ===== 工具类 ===== */
        .text-center { text-align: center; }
        .mt-12 { margin-top: 12px; }
        .mt-24 { margin-top: 24px; }
        .mb-12 { margin-bottom: 12px; }
        .mb-24 { margin-bottom: 24px; }
        .gap-8 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .w-full { width: 100%; }
        .hidden { display: none; }

        /* 斑马纹背景分隔 */
        .section-divider { height: 1px; background: var(--border-color); margin: 0; }

        /* 滚动动画支持 */
        .fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
        .fade-up.visible { opacity: 1; transform: translateY(0); }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --primary-bg: #eff6ff;
            --secondary: #f59e0b;
            --secondary-dark: #d97706;
            --accent: #10b981;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --bg-dark-2: #1e293b;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.10);
            --shadow-hover: 0 12px 32px rgba(37, 99, 235, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-family);
            color: var(--text-primary);
            background: var(--bg-body);
            line-height: 1.7;
            font-size: 16px;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

        /* ===== 浮动 Dock 导航 ===== */
        .site-header {
            position: fixed; top: 16px; left: 0; right: 0; z-index: 1000;
            pointer-events: none;
        }
        .nav-dock {
            max-width: 900px; margin: 0 auto; padding: 10px 28px;
            background: rgba(255,255,255,0.88);
            backdrop-filter: blur(18px) saturate(1.4);
            -webkit-backdrop-filter: blur(18px) saturate(1.4);
            border-radius: 60px;
            box-shadow: 0 4px 30px rgba(0,0,0,0.08);
            border: 1px solid rgba(255,255,255,0.7);
            display: flex; align-items: center; justify-content: space-between;
            pointer-events: auto;
            transition: var(--transition);
        }
        .nav-dock:hover { box-shadow: 0 8px 40px rgba(0,0,0,0.12); }
        .nav-logo a {
            font-size: 1.25rem; font-weight: 800; color: var(--text-primary);
            letter-spacing: -0.3px; background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-links { display: flex; align-items: center; gap: 4px; }
        .nav-links a {
            padding: 6px 18px; border-radius: 40px; font-size: 0.9rem; font-weight: 500;
            color: var(--text-secondary); transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover { color: var(--primary); background: var(--primary-bg); }
        .nav-links a.active {
            color: #fff; background: var(--primary);
            box-shadow: 0 4px 14px rgba(37,99,235,0.35);
        }
        .nav-cta-mobile { display: block; }
        .nav-hamburger {
            display: none; background: none; border: none; font-size: 1.4rem;
            color: var(--text-primary); cursor: pointer; padding: 4px 8px;
        }

        /* ===== 移动端菜单 ===== */
        .mobile-menu-overlay {
            display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.45); z-index: 2000;
            backdrop-filter: blur(4px);
        }
        .mobile-menu-overlay.open { display: block; }
        .mobile-menu-panel {
            position: fixed; top: 0; right: -300px; width: 280px; height: 100%;
            background: #fff; z-index: 2001; box-shadow: -8px 0 40px rgba(0,0,0,0.12);
            padding: 40px 28px; transition: right 0.35s cubic-bezier(0.4,0,0.2,1);
            display: flex; flex-direction: column; gap: 20px;
        }
        .mobile-menu-panel.open { right: 0; }
        .mobile-menu-panel .close-btn {
            align-self: flex-end; background: none; border: none; font-size: 1.6rem;
            color: var(--text-secondary); cursor: pointer;
        }
        .mobile-menu-panel a {
            font-size: 1.1rem; font-weight: 500; color: var(--text-primary);
            padding: 10px 0; border-bottom: 1px solid var(--border);
        }
        .mobile-menu-panel a.active { color: var(--primary); }

        /* ===== 文章 Hero Banner ===== */
        .article-hero {
            position: relative; padding: 140px 0 80px; margin-top: 0;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover; background-position: center; background-blend-mode: overlay;
            min-height: 340px; display: flex; align-items: center;
        }
        .article-hero::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.85) 0%, rgba(30,41,59,0.70) 100%);
        }
        .article-hero .container { position: relative; z-index: 2; width: 100%; }
        .article-hero h1 {
            color: #fff; font-size: 2.4rem; max-width: 900px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.25); margin-bottom: 16px;
            line-height: 1.25;
        }
        .article-meta {
            display: flex; flex-wrap: wrap; gap: 20px; align-items: center;
            color: rgba(255,255,255,0.8); font-size: 0.9rem;
        }
        .article-meta .meta-item { display: flex; align-items: center; gap: 6px; }
        .article-meta .meta-item i { font-size: 0.85rem; }
        .article-meta .category-badge {
            background: var(--primary); color: #fff; padding: 4px 16px;
            border-radius: 40px; font-size: 0.8rem; font-weight: 600;
        }

        /* ===== 文章主体 ===== */
        .article-main { padding: 60px 0 80px; }
        .article-content {
            max-width: 860px; margin: 0 auto;
            background: var(--bg-card); border-radius: var(--radius-lg);
            box-shadow: var(--shadow); padding: 48px 56px;
        }
        .article-content .content-body {
            font-size: 1.05rem; line-height: 1.9; color: var(--text-secondary);
        }
        .article-content .content-body p { margin-bottom: 1.2em; }
        .article-content .content-body h2,
        .article-content .content-body h3,
        .article-content .content-body h4 {
            margin-top: 1.6em; margin-bottom: 0.6em; color: var(--text-primary);
        }
        .article-content .content-body h2 { font-size: 1.6rem; }
        .article-content .content-body h3 { font-size: 1.3rem; }
        .article-content .content-body ul,
        .article-content .content-body ol {
            margin: 1em 0; padding-left: 1.6em;
        }
        .article-content .content-body ul { list-style: disc; }
        .article-content .content-body ol { list-style: decimal; }
        .article-content .content-body li { margin-bottom: 0.4em; }
        .article-content .content-body img { border-radius: var(--radius-sm); margin: 1.5em 0; }
        .article-content .content-body blockquote {
            border-left: 4px solid var(--primary); padding: 12px 20px; margin: 1.5em 0;
            background: var(--primary-bg); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary); font-style: italic;
        }
        .article-content .content-body a { font-weight: 600; text-decoration: underline; }
        .article-content .content-body code {
            background: #f1f5f9; padding: 2px 8px; border-radius: 4px; font-size: 0.9em;
        }

        /* ===== 内容未找到 ===== */
        .not-found-wrap { text-align: center; padding: 80px 20px; }
        .not-found-wrap .icon-big { font-size: 4rem; color: var(--text-light); margin-bottom: 20px; }
        .not-found-wrap h2 { font-size: 1.8rem; margin-bottom: 12px; }
        .not-found-wrap p { color: var(--text-secondary); margin-bottom: 24px; font-size: 1.05rem; }
        .not-found-wrap .btn-home {
            display: inline-block; padding: 12px 36px; background: var(--primary);
            color: #fff; border-radius: 40px; font-weight: 600;
            transition: var(--transition);
        }
        .not-found-wrap .btn-home:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-hover); }

        /* ===== 相关资讯 ===== */
        .related-section { padding: 60px 0; background: var(--bg-body); }
        .related-section .section-title {
            font-size: 1.6rem; text-align: center; margin-bottom: 40px;
            position: relative;
        }
        .related-section .section-title::after {
            content: ''; display: block; width: 60px; height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px; margin: 12px auto 0;
        }
        .related-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
        }
        .related-card {
            background: var(--bg-card); border-radius: var(--radius);
            box-shadow: var(--shadow); overflow: hidden;
            transition: var(--transition);
        }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
        .related-card .card-img { height: 180px; overflow: hidden; }
        .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
        .related-card:hover .card-img img { transform: scale(1.05); }
        .related-card .card-body { padding: 20px 22px; }
        .related-card .card-body h3 { font-size: 1.05rem; margin-bottom: 8px; }
        .related-card .card-body h3 a { color: var(--text-primary); }
        .related-card .card-body h3 a:hover { color: var(--primary); }
        .related-card .card-body p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; font-size: 0.8rem; color: var(--text-light); }

        /* ===== CTA 区块 ===== */
        .article-cta {
            padding: 60px 0; background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover; background-position: center; background-blend-mode: overlay;
            position: relative;
        }
        .article-cta::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.88) 0%, rgba(30,41,59,0.75) 100%);
        }
        .article-cta .container { position: relative; z-index: 2; text-align: center; }
        .article-cta h2 { color: #fff; font-size: 2rem; margin-bottom: 16px; }
        .article-cta p { color: rgba(255,255,255,0.8); max-width: 600px; margin: 0 auto 28px; font-size: 1.05rem; }
        .article-cta .btn-cta {
            display: inline-block; padding: 14px 44px; background: var(--secondary);
            color: #fff; border-radius: 40px; font-weight: 700; font-size: 1.05rem;
            transition: var(--transition); box-shadow: 0 4px 20px rgba(245,158,11,0.35);
        }
        .article-cta .btn-cta:hover { background: var(--secondary-dark); transform: translateY(-3px); box-shadow: 0 8px 30px rgba(245,158,11,0.45); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.8); padding: 60px 0 30px;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo { font-size: 1.3rem; font-weight: 800; color: #fff; display: block; margin-bottom: 12px; background: linear-gradient(135deg, var(--primary-light), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 360px; }
        .footer-col h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 16px; }
        .footer-col a { display: block; color: rgba(255,255,255,0.6); font-size: 0.9rem; padding: 4px 0; transition: var(--transition); }
        .footer-col a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px;
            display: flex; justify-content: space-between; align-items: center;
            font-size: 0.85rem; color: rgba(255,255,255,0.4); flex-wrap: wrap; gap: 12px;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
            margin-bottom: 20px; font-size: 0.9rem; color: rgba(255,255,255,0.6);
        }
        .breadcrumb a { color: rgba(255,255,255,0.7); }
        .breadcrumb a:hover { color: #fff; }
        .breadcrumb span { color: rgba(255,255,255,0.9); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-content { padding: 36px 32px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
        }
        @media (max-width: 768px) {
            .nav-dock { padding: 8px 18px; max-width: calc(100% - 32px); }
            .nav-links { display: none; }
            .nav-cta-mobile { display: none; }
            .nav-hamburger { display: block; }
            .article-hero { padding: 110px 0 50px; min-height: 240px; }
            .article-hero h1 { font-size: 1.6rem; }
            .article-meta { gap: 12px; font-size: 0.8rem; flex-wrap: wrap; }
            .article-content { padding: 28px 20px; border-radius: var(--radius); }
            .article-content .content-body { font-size: 1rem; }
            .related-grid { grid-template-columns: 1fr; gap: 20px; }
            .article-cta h2 { font-size: 1.4rem; }
            .article-cta p { font-size: 0.95rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .site-header { top: 10px; }
            .nav-dock { padding: 6px 14px; max-width: calc(100% - 20px); }
            .nav-logo a { font-size: 1.05rem; }
            .article-hero h1 { font-size: 1.3rem; }
            .article-content { padding: 20px 16px; }
            .article-content .content-body { font-size: 0.95rem; }
            .related-card .card-body { padding: 16px; }
            .article-cta .btn-cta { padding: 12px 32px; font-size: 0.95rem; }
        }

        /* ===== 打印 ===== */
        @media print {
            .site-header, .article-cta, .site-footer, .related-section { display: none; }
            .article-hero { padding: 40px 0; background: #fff !important; min-height: auto; }
            .article-hero::before { display: none; }
            .article-hero h1 { color: #000; text-shadow: none; }
            .article-hero .breadcrumb, .article-hero .article-meta { color: #666; }
            .article-hero .breadcrumb a { color: #333; }
            .article-main { padding: 20px 0; }
            .article-content { box-shadow: none; padding: 0; }
        }
        .page-loading { opacity: 0; animation: fadeIn 0.5s ease forwards; }
        @keyframes fadeIn { to { opacity: 1; } }

/* roulang page: category1 */
/* ===== DESIGN VARIABLES ===== */
        :root {
            --primary: #0a58ca;
            --primary-dark: #084298;
            --primary-light: #3d7ed9;
            --primary-soft: #e8f0fe;
            --secondary: #6c5ce7;
            --secondary-dark: #5a4bd1;
            --accent: #00b894;
            --accent-light: #55efc4;
            --dark: #0b0d17;
            --dark-alt: #12162a;
            --gray-900: #1a1f36;
            --gray-800: #2d3348;
            --gray-700: #4a516a;
            --gray-600: #6b7280;
            --gray-400: #9ca3af;
            --gray-300: #cbd5e1;
            --gray-200: #e2e8f0;
            --gray-100: #f1f5f9;
            --gray-50: #f8fafc;
            --white: #ffffff;
            --body-bg: #f8fafc;
            --text: #1e293b;
            --text-light: #64748b;
            --border: #e2e8f0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 30px 70px rgba(0, 0, 0, 0.16);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 76px;
        }

        /* ===== RESET & BASE ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background: var(--body-bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--dark);
            margin: 0 0 0.5rem 0;
        }
        p {
            margin: 0 0 1rem 0;
            color: var(--text-light);
        }
        p:last-child {
            margin-bottom: 0;
        }

        /* ===== CONTAINER ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ===== HEADER / DOCK NAVIGATION ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            pointer-events: none;
            background: transparent;
        }
        .nav-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(18px) saturate(1.3);
            -webkit-backdrop-filter: blur(18px) saturate(1.3);
            border-radius: 60px;
            padding: 8px 18px 8px 28px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08), 0 1px 4px rgba(0, 0, 0, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.5);
            max-width: 900px;
            width: 100%;
            transition: var(--transition);
        }
        .nav-dock:hover {
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.10);
        }
        .nav-logo a {
            font-size: 1.25rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.3px;
        }
        .nav-logo a:hover {
            opacity: 0.85;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links a {
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-links a.active {
            color: var(--white);
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            box-shadow: 0 4px 14px rgba(10, 88, 202, 0.30);
        }
        .nav-cta-mobile {
            display: flex;
            align-items: center;
        }
        .nav-cta-mobile .btn {
            padding: 8px 22px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.85rem;
        }
        .nav-hamburger {
            display: none;
            background: transparent;
            border: none;
            font-size: 1.4rem;
            color: var(--text);
            padding: 6px 10px;
            cursor: pointer;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-hamburger:hover {
            background: var(--gray-100);
        }

        /* Mobile menu overlay */
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .mobile-menu-overlay.open {
            display: block;
            opacity: 1;
        }
        .mobile-menu-panel {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100%;
            background: var(--white);
            z-index: 1001;
            padding: 30px 24px;
            box-shadow: -4px 0 30px rgba(0, 0, 0, 0.12);
            transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .mobile-menu-panel.open {
            right: 0;
        }
        .mobile-menu-panel .close-btn {
            align-self: flex-end;
            background: transparent;
            border: none;
            font-size: 1.6rem;
            color: var(--text);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
        }
        .mobile-menu-panel .close-btn:hover {
            background: var(--gray-100);
        }
        .mobile-menu-panel a {
            display: block;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            color: var(--text);
            font-size: 1.05rem;
            transition: var(--transition);
        }
        .mobile-menu-panel a:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .mobile-menu-panel a.active {
            background: var(--primary);
            color: var(--white);
        }
        .mobile-menu-panel .btn {
            margin-top: 12px;
            text-align: center;
            padding: 14px;
            border-radius: var(--radius-sm);
            font-weight: 600;
        }

        /* ===== HERO ===== */
        .hero-section {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 60px 24px 80px;
            background: var(--dark-alt);
            overflow: hidden;
        }
        .hero-section::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;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 13, 23, 0.88) 0%, rgba(18, 22, 42, 0.80) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
            text-align: center;
            color: var(--white);
        }
        .hero-content .hero-badge {
            display: inline-block;
            padding: 6px 20px;
            border-radius: 40px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            font-size: 0.82rem;
            font-weight: 500;
            letter-spacing: 0.3px;
            color: var(--accent-light);
            margin-bottom: 28px;
        }
        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 18px;
            letter-spacing: -0.8px;
            line-height: 1.2;
        }
        .hero-content h1 span {
            background: linear-gradient(135deg, #60a5fa, var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-content p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .hero-actions .btn {
            padding: 14px 38px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.02rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .hero-actions .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--white);
            box-shadow: 0 8px 30px rgba(10, 88, 202, 0.35);
        }
        .hero-actions .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(10, 88, 202, 0.45);
        }
        .hero-actions .btn-outline {
            background: transparent;
            color: var(--white);
            border: 2px solid rgba(255, 255, 255, 0.35);
            backdrop-filter: blur(4px);
        }
        .hero-actions .btn-outline:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px;
            margin-top: 48px;
            padding-top: 36px;
            border-top: 1px solid rgba(255, 255, 255, 0.10);
        }
        .hero-stats .stat-item {
            text-align: center;
        }
        .hero-stats .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--white);
            line-height: 1.2;
        }
        .hero-stats .stat-number small {
            font-size: 1rem;
            font-weight: 500;
            color: var(--accent-light);
        }
        .hero-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 4px;
        }

        /* ===== SECTION COMMON ===== */
        .section {
            padding: 80px 0;
        }
        .section-dark {
            background: var(--dark-alt);
            color: var(--white);
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark .section-subtitle {
            color: var(--white);
        }
        .section-dark p {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-gray {
            background: var(--gray-100);
        }
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 52px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 14px;
            letter-spacing: -0.4px;
        }
        .section-header .section-subtitle {
            font-size: 1.08rem;
            color: var(--text-light);
            line-height: 1.7;
        }
        .section-header .section-badge {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 40px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        /* ===== CARDS ===== */
        .card {
            background: var(--white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 32px 28px;
            transition: var(--transition);
            border: 1px solid rgba(0, 0, 0, 0.04);
            height: 100%;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-soft);
        }
        .card .card-icon {
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 16px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 1.6rem;
            margin-bottom: 18px;
            transition: var(--transition);
        }
        .card:hover .card-icon {
            background: var(--primary);
            color: var(--white);
        }
        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--dark);
        }
        .card p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.6;
        }
        .card .card-tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 30px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        /* ===== GRID ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        /* ===== SCENARIO CARDS ===== */
        .scenario-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--white);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            border: 1px solid rgba(0, 0, 0, 0.04);
        }
        .scenario-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .scenario-card .scenario-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .scenario-card .scenario-body {
            padding: 22px 24px 26px;
        }
        .scenario-card .scenario-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .scenario-card .scenario-body p {
            font-size: 0.92rem;
            color: var(--text-light);
        }
        .scenario-card .scenario-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            padding: 4px 14px;
            border-radius: 30px;
            background: rgba(10, 88, 202, 0.85);
            backdrop-filter: blur(6px);
            color: var(--white);
            font-size: 0.75rem;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.20);
        }

        /* ===== PROCESS / STEPS ===== */
        .process-steps {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: center;
            counter-reset: step;
        }
        .process-step {
            flex: 1 1 160px;
            max-width: 200px;
            text-align: center;
            position: relative;
            padding: 28px 16px 20px;
            background: var(--white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }
        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .process-step .step-number {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--white);
            font-weight: 800;
            font-size: 1.1rem;
            margin: 0 auto 14px;
            box-shadow: 0 4px 14px rgba(10, 88, 202, 0.25);
        }
        .process-step h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--dark);
        }
        .process-step p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-item .faq-question {
            padding: 20px 28px;
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-item .faq-question:hover {
            background: var(--gray-50);
        }
        .faq-item .faq-question i {
            color: var(--primary);
            font-size: 0.9rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 28px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 28px 22px;
        }
        .faq-item .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--dark-alt), var(--gray-900));
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 14px;
            letter-spacing: -0.4px;
        }
        .cta-content p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 32px;
        }
        .cta-content .btn {
            padding: 16px 44px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.08rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent), #00a381);
            color: var(--white);
            box-shadow: 0 8px 30px rgba(0, 184, 148, 0.35);
        }
        .cta-content .btn:hover {
            transform: translateY(-4px);
            box-shadow: 0 14px 45px rgba(0, 184, 148, 0.45);
        }
        .cta-content .btn-secondary-cta {
            background: transparent;
            color: var(--white);
            border: 2px solid rgba(255, 255, 255, 0.25);
            margin-left: 12px;
            box-shadow: none;
        }
        .cta-content .btn-secondary-cta:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.5);
            box-shadow: none;
        }

        /* ===== BUTTONS ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--white);
            box-shadow: 0 6px 24px rgba(10, 88, 202, 0.30);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(10, 88, 202, 0.40);
            color: var(--white);
        }
        .btn-secondary {
            background: var(--secondary);
            color: var(--white);
            box-shadow: 0 6px 24px rgba(108, 92, 231, 0.30);
        }
        .btn-secondary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(108, 92, 231, 0.40);
            color: var(--white);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--white);
            transform: translateY(-3px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 1.08rem;
        }

        /* ===== BADGE ===== */
        .badge {
            display: inline-block;
            padding: 3px 14px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.2px;
        }
        .badge-primary {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .badge-accent {
            background: rgba(0, 184, 148, 0.12);
            color: var(--accent);
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--dark-alt);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 30px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .site-footer .footer-brand .logo {
            font-size: 1.35rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .site-footer .footer-brand p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 12px;
            line-height: 1.7;
            max-width: 320px;
        }
        .site-footer .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 16px;
        }
        .site-footer .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: var(--white);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-content h1 {
                font-size: 2.6rem;
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 900px) {
            .nav-links a {
                padding: 6px 14px;
                font-size: 0.85rem;
            }
            .nav-dock {
                padding: 6px 14px 6px 20px;
                max-width: 100%;
                border-radius: 40px;
            }
        }
        @media (max-width: 768px) {
            body {
                padding-top: 68px;
            }
            .site-header {
                height: 68px;
                padding: 8px 16px;
            }
            .nav-dock {
                padding: 5px 12px 5px 16px;
                border-radius: 36px;
            }
            .nav-logo a {
                font-size: 1.05rem;
            }
            .nav-links a {
                display: none;
            }
            .nav-cta-mobile .btn {
                display: none;
            }
            .nav-hamburger {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .hero-content p {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stats .stat-number {
                font-size: 1.6rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .grid-4 {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .process-steps {
                flex-direction: column;
                align-items: center;
            }
            .process-step {
                max-width: 320px;
                width: 100%;
            }
            .cta-content h2 {
                font-size: 1.8rem;
            }
            .cta-content .btn-secondary-cta {
                margin-left: 0;
                margin-top: 12px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-brand p {
                max-width: 100%;
            }
            .hero-actions .btn {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
            .faq-item .faq-question {
                padding: 16px 20px;
                font-size: 0.95rem;
            }
            .faq-item .faq-answer {
                padding: 0 20px;
            }
            .faq-item.open .faq-answer {
                padding: 0 20px 18px;
            }
            .card {
                padding: 24px 20px;
            }
            .scenario-card .scenario-body {
                padding: 18px 18px 22px;
            }
        }
        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .hero-content p {
                font-size: 0.92rem;
            }
            .hero-stats {
                gap: 16px;
                flex-direction: column;
                align-items: center;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .cta-content h2 {
                font-size: 1.5rem;
            }
            .cta-content .btn {
                padding: 14px 28px;
                font-size: 0.95rem;
                width: 100%;
                justify-content: center;
            }
            .cta-content .btn-secondary-cta {
                margin-left: 0;
                width: 100%;
                justify-content: center;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                justify-content: center;
            }
            .nav-dock {
                padding: 4px 10px 4px 14px;
            }
            .nav-logo a {
                font-size: 0.95rem;
            }
        }

        /* ===== UTILITY ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 8px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 28px;
        }
        .mt-4 {
            margin-top: 40px;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 28px;
        }
        .gap-sm {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }

        /* ===== FOUNDATION OVERRIDES ===== */
        .grid-container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
        }
        .cell {
            margin-bottom: 0;
        }
        .grid-x>.cell {
            padding: 0;
        }
        .grid-margin-x>.cell {
            margin-left: 0;
            margin-right: 0;
        }