/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #e84c3d;
            --primary-dark: #c0392b;
            --primary-light: #f1948a;
            --secondary: #2c3e50;
            --secondary-light: #34495e;
            --accent: #f39c12;
            --bg-body: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-section-alt: #f0f2f5;
            --text-dark: #1a1a2e;
            --text-body: #2d3436;
            --text-light: #636e72;
            --text-muted: #b2bec3;
            --text-white: #f5f6fa;
            --border-color: #e0e3e8;
            --border-light: #f0f0f0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
            --shadow-hover: 0 12px 36px rgba(232,76,61,0.18);
            --transition: all 0.30s cubic-bezier(0.4, 0, 0.2, 1);
            --font-primary: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
            --spacer-xl: 100px;
            --spacer-lg: 72px;
            --spacer-md: 48px;
            --spacer-sm: 28px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-primary);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-dark); }
        p { margin-bottom: 1rem; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; width: 100%; }

        /* ===== Foundation Overrides ===== */
        .grid-container { max-width: var(--max-width); padding-left: 24px; padding-right: 24px; }
        .grid-x { margin-left: -12px; margin-right: -12px; }
        .cell { padding-left: 12px; padding-right: 12px; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px;
            padding: 12px 32px; border: none; border-radius: var(--radius-md);
            font-weight: 600; font-size: 15px; line-height: 1.4;
            cursor: pointer; transition: var(--transition);
            text-decoration: none; white-space: nowrap;
            background: var(--primary); color: var(--text-white);
            box-shadow: 0 4px 14px rgba(232,76,61,0.30);
        }
        .btn:hover { background: var(--primary-dark); color: var(--text-white); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,76,61,0.40); }
        .btn:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(232,76,61,0.25); }
        .btn:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; }
        .btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); box-shadow: none; }
        .btn-outline:hover { background: var(--primary); color: var(--text-white); border-color: var(--primary); box-shadow: 0 4px 14px rgba(232,76,61,0.25); }
        .btn-sm { padding: 8px 20px; font-size: 13px; border-radius: var(--radius-sm); }
        .btn-lg { padding: 16px 40px; font-size: 17px; border-radius: var(--radius-lg); }
        .btn-white { background: var(--text-white); color: var(--primary); box-shadow: 0 4px 14px rgba(0,0,0,0.10); }
        .btn-white:hover { background: #f0f0f0; color: var(--primary-dark); transform: translateY(-2px); }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block; padding: 4px 14px; border-radius: 100px;
            font-size: 12px; font-weight: 600; letter-spacing: 0.3px;
            background: var(--primary-light); color: var(--primary-dark);
        }
        .badge-secondary { background: #dfe6e9; color: var(--secondary); }
        .badge-accent { background: #fdebd0; color: #b7950b; }

        /* ===== Navigation ===== */
        .site-header {
            position: fixed; top: 0; left: 0; width: 100%; height: var(--nav-height);
            background: rgba(255,255,255,0.96); backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000; transition: var(--transition);
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
        }
        .site-header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,0.08); }
        .header-inner {
            max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
            display: flex; align-items: center; justify-content: space-between;
            height: var(--nav-height);
        }
        .logo {
            font-size: 22px; font-weight: 800; color: var(--text-dark);
            display: flex; align-items: center; gap: 8px;
            letter-spacing: -0.3px; white-space: nowrap;
        }
        .logo i { color: var(--primary); font-size: 26px; }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover { opacity: 0.85; }
        .nav-links {
            display: flex; align-items: center; gap: 4px;
            background: var(--bg-section-alt); padding: 4px; border-radius: var(--radius-xl);
        }
        .nav-links a {
            padding: 8px 22px; border-radius: 100px;
            font-size: 14px; font-weight: 500; color: var(--text-light);
            transition: var(--transition); text-decoration: none;
            white-space: nowrap;
        }
        .nav-links a:hover { color: var(--text-dark); background: rgba(0,0,0,0.04); }
        .nav-links a.active { background: var(--primary); color: var(--text-white); box-shadow: 0 2px 10px rgba(232,76,61,0.25); }
        .nav-links a.active:hover { background: var(--primary-dark); color: var(--text-white); }
        .nav-cta { margin-left: 8px; }
        .mobile-toggle { display: none; font-size: 24px; color: var(--text-dark); background: none; border: none; cursor: pointer; padding: 8px; }

        /* ===== Hero ===== */
        .hero {
            padding: calc(var(--nav-height) + 60px) 0 80px;
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            position: relative; overflow: hidden;
            min-height: 520px; display: flex; align-items: center;
        }
        .hero::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25; z-index: 0;
        }
        .hero-overlay {
            position: absolute; inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232,76,61,0.18) 0%, transparent 60%);
            z-index: 1;
        }
        .hero .container { position: relative; z-index: 2; text-align: center; }
        .hero-badge {
            display: inline-block; padding: 6px 20px; border-radius: 100px;
            background: rgba(255,255,255,0.12); color: var(--text-white);
            font-size: 13px; font-weight: 500; letter-spacing: 0.5px;
            backdrop-filter: blur(6px); margin-bottom: 20px;
            border: 1px solid rgba(255,255,255,0.10);
        }
        .hero h1 {
            font-size: 44px; font-weight: 800; color: var(--text-white);
            max-width: 820px; margin: 0 auto 20px; line-height: 1.25;
            letter-spacing: -0.5px;
        }
        .hero h1 .highlight { background: linear-gradient(135deg, #f39c12, #e74c3c); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero p {
            font-size: 18px; color: rgba(255,255,255,0.75);
            max-width: 640px; margin: 0 auto 36px; line-height: 1.7;
        }
        .hero-actions { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }
        .hero-stats {
            display: flex; justify-content: center; gap: 40px; margin-top: 48px;
            flex-wrap: wrap;
        }
        .hero-stat { text-align: center; }
        .hero-stat .num { font-size: 28px; font-weight: 800; color: var(--text-white); }
        .hero-stat .label { font-size: 13px; color: rgba(255,255,255,0.55); margin-top: 2px; }

        /* ===== Section Common ===== */
        .section { padding: var(--spacer-lg) 0; }
        .section-alt { background: var(--bg-section-alt); }
        .section-white { background: var(--bg-white); }
        .section-dark { background: var(--bg-dark); }
        .section-title {
            text-align: center; margin-bottom: var(--spacer-md);
        }
        .section-title h2 {
            font-size: 32px; font-weight: 800; margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-title p {
            color: var(--text-light); max-width: 580px; margin: 0 auto;
            font-size: 16px;
        }
        .section-title .badge { margin-bottom: 10px; }

        /* ===== Feature Cards ===== */
        .features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .feature-card {
            background: var(--bg-white); border-radius: var(--radius-md);
            padding: 32px 24px; text-align: center;
            box-shadow: var(--shadow-sm); border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
        .feature-card .icon { width: 60px; height: 60px; margin: 0 auto 18px; border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 26px; color: var(--text-white); background: linear-gradient(135deg, var(--primary), var(--accent)); }
        .feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
        .feature-card p { font-size: 14px; color: var(--text-light); margin-bottom: 0; }

        /* ===== Service / Content Cards ===== */
        .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .service-card {
            background: var(--bg-white); border-radius: var(--radius-md);
            overflow: hidden; box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
        .service-card .thumb {
            height: 200px; background: var(--bg-section-alt);
            position: relative; overflow: hidden;
        }
        .service-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .service-card:hover .thumb img { transform: scale(1.05); }
        .service-card .body { padding: 24px; }
        .service-card .body h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
        .service-card .body p { font-size: 14px; color: var(--text-light); margin-bottom: 12px; }
        .service-card .body .badge { margin-bottom: 8px; }
        .service-card .body .link { font-weight: 600; font-size: 14px; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
        .service-card .body .link:hover { color: var(--primary-dark); gap: 10px; }

        /* ===== CMS / News List ===== */
        .news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
        .news-card {
            background: var(--bg-white); border-radius: var(--radius-md);
            overflow: hidden; box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition); display: flex; flex-direction: column;
        }
        .news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .news-card .thumb { height: 180px; background: var(--bg-section-alt); position: relative; overflow: hidden; }
        .news-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .news-card:hover .thumb img { transform: scale(1.04); }
        .news-card .meta { padding: 20px 20px 0; display: flex; align-items: center; gap: 12px; font-size: 12px; color: var(--text-muted); }
        .news-card .meta .cat { color: var(--primary); font-weight: 600; }
        .news-card .title { padding: 8px 20px 0; font-size: 16px; font-weight: 700; color: var(--text-dark); line-height: 1.4; }
        .news-card .title a { color: inherit; text-decoration: none; }
        .news-card .title a:hover { color: var(--primary); }
        .news-card .summary { padding: 8px 20px 20px; font-size: 13px; color: var(--text-light); flex: 1; }
        .news-empty { text-align: center; padding: 40px 20px; color: var(--text-light); font-size: 15px; background: var(--bg-white); border-radius: var(--radius-md); border: 1px dashed var(--border-color); }

        /* ===== Stats / Evidence ===== */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .stat-card {
            background: rgba(255,255,255,0.06); border-radius: var(--radius-md);
            padding: 36px 24px; text-align: center;
            border: 1px solid rgba(255,255,255,0.08);
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }
        .stat-card:hover { background: rgba(255,255,255,0.10); transform: translateY(-4px); }
        .stat-card .num { font-size: 36px; font-weight: 800; color: var(--text-white); }
        .stat-card .label { font-size: 14px; color: rgba(255,255,255,0.6); margin-top: 4px; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 760px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-white); border-radius: var(--radius-md);
            margin-bottom: 12px; box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light); overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow-md); }
        .faq-q {
            padding: 18px 24px; font-weight: 600; color: var(--text-dark);
            cursor: pointer; display: flex; align-items: center; justify-content: space-between;
            font-size: 15px; user-select: none;
            transition: var(--transition);
        }
        .faq-q i { color: var(--primary); font-size: 14px; transition: var(--transition); }
        .faq-q.active i { transform: rotate(180deg); }
        .faq-a {
            padding: 0 24px; max-height: 0; overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            font-size: 14px; color: var(--text-light); line-height: 1.7;
        }
        .faq-a.open { padding: 0 24px 18px; max-height: 300px; }

        /* ===== CTA ===== */
        .cta-section {
            padding: var(--spacer-lg) 0;
            background: linear-gradient(135deg, var(--primary), #c0392b);
            text-align: center; 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: 0.10; z-index: 0;
        }
        .cta-section .container { position: relative; z-index: 1; }
        .cta-section h2 { font-size: 34px; font-weight: 800; color: var(--text-white); margin-bottom: 12px; }
        .cta-section p { font-size: 17px; color: rgba(255,255,255,0.8); max-width: 520px; margin: 0 auto 28px; }
        .cta-section .btn { box-shadow: 0 6px 24px rgba(0,0,0,0.25); }
        .cta-section .btn:hover { transform: translateY(-3px); box-shadow: 0 10px 32px rgba(0,0,0,0.30); }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.65);
            padding: 52px 0 28px;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
        .footer-brand .logo { color: var(--text-white); font-size: 20px; margin-bottom: 12px; }
        .footer-brand .logo i { color: var(--primary); }
        .footer-brand p { font-size: 14px; line-height: 1.7; max-width: 300px; }
        .footer-col h4 { font-size: 15px; font-weight: 700; color: var(--text-white); margin-bottom: 14px; }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul li a { color: rgba(255,255,255,0.55); font-size: 14px; text-decoration: none; transition: var(--transition); }
        .footer-col ul li a:hover { color: var(--primary); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            margin-top: 36px; padding-top: 20px;
            display: flex; align-items: center; justify-content: space-between;
            flex-wrap: wrap; gap: 12px;
            font-size: 13px; color: rgba(255,255,255,0.40);
        }
        .footer-bottom a { color: rgba(255,255,255,0.50); }
        .footer-bottom a:hover { color: var(--primary); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .service-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .hero h1 { font-size: 36px; }
        }

        @media (max-width: 768px) {
            :root { --nav-height: 64px; --spacer-lg: 56px; --spacer-md: 36px; }
            .mobile-toggle { display: block; }
            .nav-links {
                position: fixed; top: var(--nav-height); left: 0; width: 100%;
                flex-direction: column; background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px); border-radius: 0;
                padding: 12px 24px 20px; gap: 6px;
                box-shadow: 0 8px 32px rgba(0,0,0,0.12);
                transform: translateY(-110%); opacity: 0; pointer-events: none;
                transition: var(--transition); border-bottom: 1px solid var(--border-light);
            }
            .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .nav-links a { width: 100%; text-align: center; padding: 12px 16px; border-radius: var(--radius-sm); }
            .nav-cta { display: none; }
            .hero { padding: calc(var(--nav-height) + 40px) 0 56px; min-height: auto; }
            .hero h1 { font-size: 30px; }
            .hero p { font-size: 16px; }
            .hero-stats { gap: 24px; }
            .hero-stat .num { font-size: 22px; }
            .section-title h2 { font-size: 26px; }
            .features-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .feature-card { padding: 24px 16px; }
            .service-grid { grid-template-columns: 1fr; gap: 20px; }
            .news-grid { grid-template-columns: 1fr; gap: 20px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-card .num { font-size: 28px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
            .cta-section h2 { font-size: 26px; }
            .cta-section p { font-size: 15px; }
        }

        @media (max-width: 520px) {
            .container { padding-left: 16px; padding-right: 16px; }
            .hero h1 { font-size: 26px; }
            .hero p { font-size: 15px; }
            .hero-stats { flex-direction: column; gap: 12px; align-items: center; }
            .features-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-card { padding: 24px 16px; }
            .stat-card .num { font-size: 24px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .section-title h2 { font-size: 22px; }
            .btn-lg { padding: 14px 28px; font-size: 15px; }
            .nav-links a { font-size: 15px; padding: 10px 14px; }
        }

        /* ===== Fade-in animation ===== */
        .fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
        .fade-in.visible { opacity: 1; transform: translateY(0); }
        .delay-1 { transition-delay: 0.1s; }
        .delay-2 { transition-delay: 0.2s; }
        .delay-3 { transition-delay: 0.3s; }
        .delay-4 { transition-delay: 0.4s; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #d43f2a;
            --primary-dark: #b32e1a;
            --primary-light: #f05a42;
            --secondary: #f7b731;
            --secondary-light: #fdd47a;
            --accent: #1a7a5c;
            --bg-light: #f8f6f4;
            --bg-white: #ffffff;
            --bg-dark: #1e1b1a;
            --text-dark: #2d2a28;
            --text-mid: #5e5a58;
            --text-light: #8c8885;
            --text-white: #faf8f6;
            --border-light: #e8e4e0;
            --border-mid: #d4cfca;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 14px 40px rgba(0,0,0,0.10);
            --font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }

        /* ===== Reset / Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-family);
            background: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: color var(--transition); }
        button, input, textarea { font-family: inherit; }
        ul { list-style: none; padding: 0; margin: 0; }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container { padding: 0 16px; }
        }

        /* ===== Site Header ===== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
            padding: 0 24px;
        }
        .site-header .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .site-header .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
        }
        .site-header .logo i { font-size: 1.6rem; color: var(--secondary); }
        .site-header .logo span { color: var(--text-dark); letter-spacing: 0.5px; }
        .site-header .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .site-header .nav-links a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-mid);
            transition: background var(--transition), color var(--transition);
            position: relative;
        }
        .site-header .nav-links a:hover {
            background: rgba(212,63,42,0.06);
            color: var(--primary);
        }
        .site-header .nav-links a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 10px rgba(212,63,42,0.25);
        }
        .site-header .nav-links a.active:hover {
            background: var(--primary-dark);
        }
        .site-header .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 4px;
        }
        @media (max-width: 768px) {
            .site-header .header-inner { height: 60px; }
            .site-header .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                padding: 12px 20px 20px;
                gap: 4px;
            }
            .site-header .nav-links.open { display: flex; }
            .site-header .nav-links a { padding: 10px 16px; width: 100%; }
            .site-header .menu-toggle { display: block; }
        }

        /* ===== Hero / Banner ===== */
        .hero-banner {
            position: relative;
            background: linear-gradient(135deg, #2d2a28 0%, #1e1b1a 100%);
            min-height: 480px;
            display: flex;
            align-items: center;
            overflow: hidden;
            padding: 80px 0 60px;
        }
        .hero-banner .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.3;
            mix-blend-mode: overlay;
        }
        .hero-banner .container { position: relative; z-index: 2; }
        .hero-banner .hero-content { max-width: 720px; }
        .hero-banner .hero-badge {
            display: inline-block;
            background: var(--secondary);
            color: #1e1b1a;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 40px;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            text-transform: uppercase;
        }
        .hero-banner h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-banner h1 span { color: var(--secondary); }
        .hero-banner .hero-desc {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.8);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 600px;
        }
        .hero-banner .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
        .hero-banner .btn-primary {
            background: var(--secondary);
            color: #1e1b1a;
            padding: 14px 36px;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: transform var(--transition), box-shadow var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .hero-banner .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(247,183,49,0.35);
        }
        .hero-banner .btn-outline {
            background: transparent;
            color: var(--text-white);
            padding: 14px 36px;
            border-radius: 60px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255,255,255,0.3);
            cursor: pointer;
            transition: background var(--transition), border-color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .hero-banner .btn-outline:hover {
            background: rgba(255,255,255,0.08);
            border-color: var(--secondary);
            color: var(--secondary);
        }
        @media (max-width: 768px) {
            .hero-banner { min-height: 380px; padding: 60px 0 40px; }
            .hero-banner h1 { font-size: 2.2rem; }
            .hero-banner .hero-desc { font-size: 1rem; }
            .hero-banner .hero-actions { flex-direction: column; align-items: flex-start; }
        }
        @media (max-width: 520px) {
            .hero-banner h1 { font-size: 1.8rem; }
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt { background: var(--bg-white); }
        .section-title {
            text-align: center;
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-sub {
            text-align: center;
            font-size: 1.05rem;
            color: var(--text-mid);
            max-width: 640px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section { padding: 56px 0; }
            .section-title { font-size: 1.7rem; }
            .section-sub { font-size: 0.95rem; margin-bottom: 32px; }
        }

        /* ===== Cards Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid var(--border-light);
        }
        .card-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .card-item .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .card-item .card-body {
            padding: 24px 20px 28px;
        }
        .card-item .card-tag {
            display: inline-block;
            background: rgba(212,63,42,0.08);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 40px;
            margin-bottom: 10px;
        }
        .card-item .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-item .card-desc {
            font-size: 0.92rem;
            color: var(--text-mid);
            line-height: 1.6;
            margin-bottom: 14px;
        }
        .card-item .card-link {
            font-weight: 600;
            color: var(--primary);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .card-item .card-link i { font-size: 0.75rem; transition: transform var(--transition); }
        .card-item .card-link:hover i { transform: translateX(4px); }
        @media (max-width: 1024px) {
            .card-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        }
        @media (max-width: 640px) {
            .card-grid { grid-template-columns: 1fr; gap: 18px; }
            .card-item .card-img { height: 180px; }
        }

        /* ===== Feature Grid ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .feature-item {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: background var(--transition), transform var(--transition);
        }
        .feature-item:hover {
            background: var(--bg-white);
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }
        .feature-item .feat-icon {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.7rem;
            color: #fff;
        }
        .feature-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-dark);
        }
        .feature-item p {
            font-size: 0.92rem;
            color: var(--text-mid);
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .feature-item { padding: 28px 20px; }
        }
        @media (max-width: 520px) {
            .feature-grid { grid-template-columns: 1fr; }
        }

        /* ===== Step / Process ===== */
        .step-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
            margin-top: 20px;
        }
        .step-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            position: relative;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition);
        }
        .step-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .step-item .step-num {
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 auto 16px;
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--text-mid);
            line-height: 1.6;
        }
        @media (max-width: 900px) {
            .step-list { grid-template-columns: repeat(2, 1fr); gap: 16px; }
        }
        @media (max-width: 520px) {
            .step-list { grid-template-columns: 1fr; }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow-sm); }
        .faq-item .faq-q {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--bg-white);
            transition: background var(--transition);
        }
        .faq-item .faq-q:hover { background: rgba(212,63,42,0.03); }
        .faq-item .faq-q i { color: var(--text-light); transition: transform var(--transition); }
        .faq-item.active .faq-q i { transform: rotate(180deg); color: var(--primary); }
        .faq-item .faq-a {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-mid);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-a { display: block; }
        @media (max-width: 640px) {
            .faq-item .faq-q { padding: 16px 18px; font-size: 0.95rem; }
            .faq-item .faq-a { padding: 0 18px 14px; font-size: 0.9rem; }
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-block .cta-content { position: relative; z-index: 2; }
        .cta-block h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .cta-block p {
            font-size: 1.05rem;
            opacity: 0.9;
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-block .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--secondary);
            color: #1e1b1a;
            padding: 16px 44px;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: transform var(--transition), box-shadow var(--transition);
            border: none;
            cursor: pointer;
        }
        .cta-block .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(247,183,49,0.35);
        }
        @media (max-width: 768px) {
            .cta-block { padding: 40px 24px; }
            .cta-block h2 { font-size: 1.5rem; }
            .cta-block p { font-size: 0.95rem; }
            .cta-block .cta-btn { padding: 14px 32px; font-size: 0.95rem; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
            margin-top: 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
        }
        .site-footer .footer-brand .logo i { color: var(--secondary); }
        .site-footer .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.6);
            max-width: 320px;
        }
        .site-footer .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .site-footer .footer-col ul li { margin-bottom: 10px; }
        .site-footer .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            transition: color var(--transition);
        }
        .site-footer .footer-col ul li a:hover { color: var(--secondary); }
        .site-footer .footer-col ul li a i { margin-right: 6px; width: 18px; text-align: center; }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }
        .site-footer .footer-bottom a {
            color: rgba(255,255,255,0.5);
            transition: color var(--transition);
        }
        .site-footer .footer-bottom a:hover { color: var(--secondary); }
        @media (max-width: 900px) {
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .site-footer .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .site-footer .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Scene Cards ===== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scene-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px 28px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .scene-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .scene-item .scene-icon {
            font-size: 2.4rem;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .scene-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .scene-item p {
            font-size: 0.9rem;
            color: var(--text-mid);
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .scene-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
        }
        @media (max-width: 520px) {
            .scene-grid { grid-template-columns: 1fr; }
        }

        /* ===== Badge ===== */
        .badge {
            display: inline-block;
            background: rgba(212,63,42,0.08);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 14px;
            border-radius: 40px;
        }
        .badge-secondary {
            background: rgba(247,183,49,0.15);
            color: #8a6d0b;
        }

        /* ===== Extra ===== */
        .text-center { text-align: center; }
        .mt-12 { margin-top: 12px; }
        .mt-24 { margin-top: 24px; }
        .mb-16 { margin-bottom: 16px; }
        .gap-8 { gap: 8px; }

        /* ===== Hero cover overlay ===== */
        .hero-cover {
            position: relative;
            background: linear-gradient(135deg, #2d2a28 0%, #1e1b1a 100%);
        }
        .hero-cover .cover-img {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/coverpic/cover-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --accent-light: #ffd166;
            --bg-dark: #0b1a2e;
            --bg-mid: #1a2d42;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --text-dark: #1a1a2e;
            --text-mid: #4a4a6a;
            --text-light: #8a8aaa;
            --text-white: #ffffff;
            --border: #e8e8ee;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
            --shadow-glow: 0 0 30px rgba(230,57,70,0.25);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-main: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }

        /* ===== 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-main);
            color: var(--text-dark);
            background: var(--bg-white);
            line-height: 1.6;
            font-size: 16px;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover, a:focus { color: var(--primary-dark); outline: none; }
        a:focus-visible { outline: 2px solid var(--primary); 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 { line-height: 1.25; font-weight: 700; color: var(--text-dark); }
        h1 { font-size: 2.4rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1rem; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 12px 32px; border-radius: 50px;
            font-weight: 600; font-size: 1rem;
            border: none; cursor: pointer;
            transition: var(--transition);
            text-align: center; white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff; box-shadow: var(--shadow-sm);
        }
        .btn-primary:hover, .btn-primary:focus {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff; transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }
        .btn-secondary {
            background: var(--secondary); color: #fff;
        }
        .btn-secondary:hover {
            background: var(--secondary-light); color: #fff; transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent; color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary); color: #fff; transform: translateY(-2px);
        }
        .btn-sm { padding: 8px 20px; font-size: 0.9rem; }
        .btn-lg { padding: 16px 40px; font-size: 1.1rem; }

        /* ===== Badges & Tags ===== */
        .badge {
            display: inline-block; padding: 4px 14px; border-radius: 50px;
            font-size: 0.75rem; font-weight: 600; letter-spacing: 0.3px;
            background: var(--primary); color: #fff;
        }
        .badge-secondary { background: var(--secondary); color: #fff; }
        .badge-accent { background: var(--accent); color: #fff; }
        .badge-light { background: var(--bg-light); color: var(--text-mid); }
        .tag {
            display: inline-block; padding: 3px 12px; border-radius: 6px;
            font-size: 0.75rem; font-weight: 500;
            background: var(--bg-light); color: var(--text-mid);
            border: 1px solid var(--border); transition: var(--transition);
        }
        .tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed; top: 0; left: 0; width: 100%;
            height: var(--header-h); z-index: 1000;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex; align-items: center; justify-content: space-between;
            height: var(--header-h);
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.4rem; font-weight: 800;
            color: var(--secondary);
        }
        .logo i { color: var(--primary); font-size: 1.6rem; }
        .logo span { background: linear-gradient(135deg, var(--secondary), var(--primary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-links { display: flex; align-items: center; gap: 6px; }
        .nav-links a {
            padding: 8px 18px; border-radius: 50px;
            font-size: 0.9rem; font-weight: 500; color: var(--text-mid);
            transition: var(--transition);
        }
        .nav-links a:hover { color: var(--primary); background: rgba(230,57,70,0.06); }
        .nav-links a.active { color: #fff; background: var(--primary); box-shadow: var(--shadow-sm); }
        .nav-cta { display: flex; align-items: center; gap: 12px; }
        .nav-cta .btn { padding: 8px 22px; font-size: 0.9rem; }

        /* Mobile Nav Toggle */
        .nav-toggle {
            display: none; flex-direction: column; gap: 5px;
            cursor: pointer; background: none; border: none; padding: 6px;
        }
        .nav-toggle span {
            width: 26px; height: 3px; background: var(--text-dark);
            border-radius: 3px; transition: var(--transition);
        }

        /* ===== Hero / Banner ===== */
        .article-hero {
            margin-top: var(--header-h);
            position: relative; min-height: 380px;
            display: flex; align-items: center;
            background: var(--bg-dark) url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        }
        .article-hero::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(11,26,46,0.85) 0%, rgba(230,57,70,0.55) 100%);
        }
        .article-hero .container { position: relative; z-index: 2; width: 100%; }
        .article-hero .hero-meta {
            display: flex; flex-wrap: wrap; align-items: center; gap: 12px;
            margin-bottom: 16px;
        }
        .article-hero .hero-meta .badge { font-size: 0.8rem; padding: 5px 16px; }
        .article-hero .hero-meta span { color: rgba(255,255,255,0.75); font-size: 0.85rem; }
        .article-hero .hero-meta i { margin-right: 4px; }
        .article-hero h1 {
            font-size: 2.6rem; color: #fff; max-width: 860px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
            margin-bottom: 16px;
        }
        .article-hero .hero-desc {
            color: rgba(255,255,255,0.85); font-size: 1.05rem;
            max-width: 700px; line-height: 1.7;
        }

        /* ===== Article Content ===== */
        .article-section { padding: 60px 0; }
        .article-body {
            max-width: 820px; margin: 0 auto;
            font-size: 1.05rem; line-height: 1.9;
            color: var(--text-dark);
        }
        .article-body p { margin-bottom: 1.4rem; }
        .article-body h2, .article-body h3 { margin-top: 2rem; margin-bottom: 0.8rem; }
        .article-body img { border-radius: var(--radius); margin: 1.6rem 0; box-shadow: var(--shadow-sm); }
        .article-body ul, .article-body ol { margin-bottom: 1.4rem; padding-left: 1.6rem; }
        .article-body li { margin-bottom: 0.4rem; list-style: disc; }
        .article-body blockquote {
            border-left: 4px solid var(--primary); padding: 12px 20px;
            background: var(--bg-light); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.6rem 0; color: var(--text-mid);
        }
        .article-body a { color: var(--primary); font-weight: 500; text-decoration: underline; }

        .article-info-bar {
            display: flex; flex-wrap: wrap; align-items: center; gap: 20px;
            padding: 20px 0; margin: 30px 0 0;
            border-top: 1px solid var(--border);
            color: var(--text-light); font-size: 0.9rem;
        }
        .article-info-bar i { margin-right: 6px; }
        .article-info-bar .share-links { display: flex; gap: 10px; margin-left: auto; }
        .article-info-bar .share-links a {
            display: inline-flex; align-items: center; justify-content: center;
            width: 36px; height: 36px; border-radius: 50%;
            background: var(--bg-light); color: var(--text-mid);
            transition: var(--transition);
        }
        .article-info-bar .share-links a:hover { background: var(--primary); color: #fff; }

        /* ===== Related Articles ===== */
        .related-section {
            padding: 60px 0; background: var(--bg-light);
        }
        .related-section .section-title {
            text-align: center; margin-bottom: 40px;
        }
        .related-section .section-title h2 { font-size: 1.8rem; }
        .related-section .section-title p { color: var(--text-light); font-size: 1rem; max-width: 520px; margin: 8px auto 0; }
        .related-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
        }
        .related-card {
            background: #fff; border-radius: var(--radius);
            overflow: hidden; box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
        .related-card .card-img {
            width: 100%; height: 200px; object-fit: cover;
            background: var(--bg-light);
        }
        .related-card .card-body { padding: 20px; }
        .related-card .card-body h3 { font-size: 1.05rem; margin-bottom: 8px; }
        .related-card .card-body h3 a { color: var(--text-dark); }
        .related-card .card-body h3 a:hover { color: var(--primary); }
        .related-card .card-body p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 0; }
        .related-card .card-meta { font-size: 0.8rem; color: var(--text-light); margin-top: 12px; display: flex; align-items: center; gap: 12px; }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 0; background: #fff;
        }
        .faq-section .section-title { text-align: center; margin-bottom: 40px; }
        .faq-section .section-title h2 { font-size: 1.8rem; }
        .faq-section .section-title p { color: var(--text-light); max-width: 520px; margin: 8px auto 0; }
        .faq-grid {
            max-width: 780px; margin: 0 auto;
            display: flex; flex-direction: column; gap: 12px;
        }
        .faq-item {
            background: var(--bg-light); border-radius: var(--radius);
            padding: 0; overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .faq-item summary {
            padding: 18px 24px; cursor: pointer;
            font-weight: 600; font-size: 1rem;
            display: flex; align-items: center; gap: 12px;
            color: var(--text-dark); user-select: none;
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary i { color: var(--primary); font-size: 1.1rem; transition: var(--transition); }
        .faq-item[open] summary i { transform: rotate(45deg); }
        .faq-item .faq-answer {
            padding: 0 24px 18px; color: var(--text-mid); line-height: 1.7; font-size: 0.95rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0; background: var(--bg-dark);
            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;
        }
        .cta-section .container { position: relative; z-index: 2; text-align: center; }
        .cta-section h2 { color: #fff; font-size: 2rem; margin-bottom: 12px; }
        .cta-section p { color: rgba(255,255,255,0.7); font-size: 1.05rem; max-width: 580px; margin: 0 auto 28px; }
        .cta-section .btn { font-size: 1.1rem; padding: 16px 44px; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--secondary); color: rgba(255,255,255,0.7);
            padding: 50px 0 0; font-size: 0.9rem;
        }
        .footer-grid {
            display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px;
            padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,0.10);
        }
        .footer-brand .logo { color: #fff; font-size: 1.3rem; margin-bottom: 14px; }
        .footer-brand .logo i { color: var(--primary-light); }
        .footer-brand .logo span { -webkit-text-fill-color: #fff; background: none; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 360px; color: rgba(255,255,255,0.6); }
        .footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; font-weight: 600; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.6); transition: var(--transition); }
        .footer-col ul li a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-col ul li a i { margin-right: 8px; width: 18px; text-align: center; }
        .footer-bottom {
            display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center;
            padding: 20px 0; font-size: 0.85rem; color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--primary-light); }
        .footer-bottom span { margin: 4px 0; }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center; padding: 80px 20px;
            background: var(--bg-light); border-radius: var(--radius);
            margin: 40px auto; max-width: 500px;
        }
        .not-found-box i { font-size: 3rem; color: var(--text-light); margin-bottom: 16px; }
        .not-found-box h3 { font-size: 1.4rem; margin-bottom: 8px; }
        .not-found-box p { color: var(--text-light); margin-bottom: 20px; }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 16px 0; font-size: 0.85rem; color: var(--text-light);
            margin-top: var(--header-h); background: var(--bg-light);
        }
        .breadcrumb a { color: var(--text-light); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb span { margin: 0 6px; }
        .breadcrumb .current { color: var(--text-mid); font-weight: 500; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .article-hero h1 { font-size: 2.2rem; }
        }

        @media (max-width: 768px) {
            :root { --header-h: 64px; }
            .nav-links { display: none; }
            .nav-links.open { display: flex; flex-direction: column; position: absolute; top: var(--header-h); left: 0; width: 100%; background: rgba(255,255,255,0.98); backdrop-filter: blur(12px); padding: 16px 24px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-md); gap: 4px; }
            .nav-links.open a { width: 100%; text-align: center; padding: 12px; border-radius: var(--radius-sm); }
            .nav-toggle { display: flex; }
            .nav-cta .btn { padding: 6px 16px; font-size: 0.85rem; }
            .article-hero { min-height: 300px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-hero .hero-desc { font-size: 0.95rem; }
            .article-body { font-size: 1rem; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; gap: 6px; }
            .article-info-bar .share-links { margin-left: 0; width: 100%; justify-content: flex-start; }
            .cta-section h2 { font-size: 1.6rem; }
            .faq-item summary { font-size: 0.95rem; padding: 14px 18px; }
            .faq-item .faq-answer { padding: 0 18px 14px; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-hero h1 { font-size: 1.5rem; }
            .article-hero { min-height: 240px; }
            .btn-lg { padding: 12px 28px; font-size: 1rem; }
            h2 { font-size: 1.4rem; }
            .related-card .card-img { height: 160px; }
        }