/* roulang page: index */
:root {
            --primary: #0b1a2e;
            --primary-light: #142a45;
            --primary-dark: #06101d;
            --accent: #e5b455;
            --accent-dark: #c99a3e;
            --accent-light: #f6dc94;
            --surface: #ffffff;
            --bg: #f3f6fa;
            --text: #1b2936;
            --text-muted: #64748b;
            --border: #dfe7ef;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-card: 0 4px 16px rgba(11, 26, 46, .07);
            --shadow-hover: 0 12px 32px rgba(11, 26, 46, .14);
            --shadow-hero: 0 20px 60px rgba(0, 0, 0, .35);
            --font-body: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ---------- Header / Nav ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 16px 0;
            background: rgba(243, 246, 250, .85);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(223, 231, 239, .7);
        }
        .nav-panel {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--surface);
            border-radius: 18px;
            padding: 12px 20px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            transition: box-shadow .3s;
        }
        .nav-panel:hover {
            box-shadow: var(--shadow-hover);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: .5px;
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--accent);
            border-radius: 12px;
            font-size: 20px;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: auto;
            margin-right: 20px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-muted);
            transition: all .25s;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(11, 26, 46, .05);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(229, 180, 85, .18);
            font-weight: 700;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--accent);
            font-size: 15px;
            font-weight: 600;
            transition: all .3s;
            box-shadow: 0 4px 12px rgba(11, 26, 46, .2);
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(11, 26, 46, .28);
            color: var(--accent-light);
        }
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--bg);
            color: var(--primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: background .25s;
        }
        .menu-toggle:hover {
            background: var(--border);
        }
        /* ---------- Hero ---------- */
        .hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 120px 0 140px;
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(6, 16, 29, .92) 0%, rgba(11, 26, 46, .78) 50%, rgba(11, 26, 46, .55) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(229, 180, 85, .18);
            border: 1px solid rgba(229, 180, 85, .35);
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 50px;
            margin-bottom: 24px;
            letter-spacing: .5px;
        }
        .hero-title {
            font-size: 52px;
            line-height: 1.2;
            font-weight: 800;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 2px;
        }
        .hero-title span {
            color: var(--accent);
        }
        .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 36px;
            line-height: 1.7;
            max-width: 580px;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 40px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            transition: all .3s;
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary);
            box-shadow: 0 6px 18px rgba(229, 180, 85, .35);
        }
        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(229, 180, 85, .45);
        }
        .btn-glass {
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .25);
            color: #fff;
            backdrop-filter: blur(6px);
        }
        .btn-glass:hover {
            background: rgba(255, 255, 255, .2);
            transform: translateY(-2px);
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            list-style: none;
        }
        .hero-trust li {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, .75);
            font-size: 14px;
        }
        .hero-trust i {
            color: var(--accent);
            font-size: 16px;
        }
        /* ---------- Stats ---------- */
        .stats-section {
            padding: 0;
            margin-top: -60px;
            position: relative;
            z-index: 5;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hover);
            padding: 40px;
            border: 1px solid var(--border);
        }
        .stat-item {
            text-align: center;
        }
        .stat-number {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-number em {
            font-style: normal;
            color: var(--accent);
            font-size: 28px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }
        /* ---------- Sections ---------- */
        .section {
            padding: 96px 0;
        }
        .section-alt {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-dark);
            background: rgba(229, 180, 85, .12);
            padding: 6px 14px;
            border-radius: 50px;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        /* ---------- Feature Cards ---------- */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: all .35s;
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity .35s;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(229, 180, 85, .3);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 58px;
            height: 58px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--accent);
            font-size: 24px;
            border-radius: 16px;
            margin-bottom: 20px;
            box-shadow: 0 6px 16px rgba(11, 26, 46, .2);
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.65;
        }
        /* ---------- Guide / Category Section ---------- */
        .guide-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
        }
        .guide-section::before {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(229, 180, 85, .08);
        }
        .guide-section .section-title {
            color: #fff;
        }
        .guide-section .section-desc {
            color: rgba(255, 255, 255, .7);
        }
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            z-index: 2;
        }
        .guide-card {
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            text-align: center;
            transition: all .3s;
            backdrop-filter: blur(4px);
        }
        .guide-card:hover {
            background: rgba(255, 255, 255, .12);
            transform: translateY(-4px);
            border-color: rgba(229, 180, 85, .4);
        }
        .guide-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(229, 180, 85, .18);
            color: var(--accent);
            font-size: 20px;
            border-radius: 14px;
            margin: 0 auto 16px;
        }
        .guide-card h4 {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }
        .guide-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            line-height: 1.6;
        }
        /* ---------- News / Content List ---------- */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all .3s;
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(229, 180, 85, .3);
        }
        .news-card-inner {
            display: block;
            padding: 28px;
        }
        .news-cat {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            color: var(--accent-dark);
            background: rgba(229, 180, 85, .12);
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 14px;
            letter-spacing: .5px;
        }
        .news-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.45;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--text-muted);
            font-size: 13px;
        }
        .news-meta time {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--primary);
            font-size: 14px;
            transition: gap .3s;
        }
        .news-card:hover .read-more {
            gap: 10px;
            color: var(--accent-dark);
        }
        .empty-state {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 24px;
            background: var(--surface);
            border: 1px dashed var(--border);
            border-radius: var(--radius-md);
            color: var(--text-muted);
            font-size: 16px;
        }
        /* ---------- Process ---------- */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            position: relative;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            counter-increment: step;
            transition: all .3s;
        }
        .step-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .step-num {
            font-size: 14px;
            font-weight: 800;
            color: var(--accent);
            background: rgba(229, 180, 85, .12);
            width: 34px;
            height: 34px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            margin: 0 auto 18px;
            position: relative;
        }
        .step-num::after {
            content: counter(step);
        }
        .step-icon {
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--accent);
            font-size: 22px;
            border-radius: 16px;
            margin: 0 auto 18px;
        }
        .step-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        /* ---------- FAQ ---------- */
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow .3s;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }
        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
        }
        .faq-q i {
            color: var(--accent);
            font-size: 18px;
            flex-shrink: 0;
            transition: transform .3s;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-a {
            display: none;
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        /* ---------- CTA ---------- */
        .cta-section {
            position: relative;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 100px 0;
            text-align: center;
            overflow: hidden;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(6, 16, 29, .92), rgba(11, 26, 46, .85));
        }
        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 620px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-content p {
            font-size: 17px;
            color: rgba(255, 255, 255, .75);
            margin-bottom: 32px;
            line-height: 1.7;
        }
        /* ---------- Footer ---------- */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .7);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-logo i {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 15px;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col a,
        .footer-col p {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            transition: color .25s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }
        /* ---------- Responsive ---------- */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 42px;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                padding: 12px 0;
            }
            .nav-panel {
                padding: 10px 14px;
            }
            .main-nav {
                display: none;
                position: fixed;
                top: 76px;
                left: 16px;
                right: 16px;
                background: var(--surface);
                border-radius: 16px;
                box-shadow: var(--shadow-hover);
                flex-direction: column;
                align-items: stretch;
                padding: 16px;
                gap: 4px;
                z-index: 999;
                border: 1px solid var(--border);
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                padding: 14px 16px;
                justify-content: flex-start;
            }
            .nav-cta {
                margin-top: 8px;
                justify-content: center;
            }
            .menu-toggle {
                display: flex;
            }
            .hero {
                padding: 80px 0 110px;
            }
            .hero-title {
                font-size: 34px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .stats-section {
                margin-top: -40px;
            }
            .stats-grid {
                padding: 24px;
            }
            .section {
                padding: 72px 0;
            }
            .section-title {
                font-size: 28px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .cta-content h2 {
                font-size: 30px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: stretch;
            }
            .btn {
                justify-content: center;
            }
            .feature-grid,
            .guide-grid,
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stat-number {
                font-size: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-logo {
                font-size: 20px;
            }
            .section-title {
                font-size: 26px;
            }
            .faq-q {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-a {
                padding: 0 18px 16px;
                font-size: 14px;
            }
            .cta-content h2 {
                font-size: 26px;
            }
            .nav-cta {
                font-size: 14px;
                padding: 10px 16px;
            }
            .logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0a1e3c;
            --primary-2: #10294f;
            --primary-3: #1b3a6b;
            --accent: #d4a853;
            --accent-2: #b8893b;
            --accent-soft: #f3e6c8;
            --bg: #f4f1ec;
            --bg-white: #ffffff;
            --bg-soft: #ece8df;
            --text: #1b2330;
            --text-muted: #5d6675;
            --border: #ddd6c8;
            --radius: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 8px rgba(10, 30, 60, .06);
            --shadow-md: 0 12px 32px rgba(10, 30, 60, .09);
            --shadow-lg: 0 28px 64px rgba(10, 30, 60, .14);
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .wrap {
            max-width: 1220px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 1024px) {
            .wrap {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--primary);
            position: sticky;
            top: 0;
            z-index: 50;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            min-height: 74px;
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: .6rem;
            color: #fff;
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: .02em;
            flex-shrink: 0;
        }

        .site-logo i {
            color: var(--accent);
            font-size: 1.3rem;
        }

        .site-logo span {
            background: linear-gradient(135deg, #fff 30%, var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: .55rem;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .09);
            border-radius: 18px;
            padding: .45rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, .12);
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: .45rem;
            color: #cdd7e6;
            font-size: .95rem;
            font-weight: 500;
            padding: .55rem 1rem;
            border-radius: 12px;
            transition: all .28s ease;
            line-height: 1.4;
        }

        .nav-link i {
            font-size: .85rem;
            color: rgba(255, 255, 255, .5);
            transition: color .28s ease;
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .08);
            transform: translateY(-1px);
        }

        .nav-link:hover i {
            color: var(--accent);
        }

        .nav-link.active {
            background: var(--accent);
            color: var(--primary);
            box-shadow: 0 6px 16px rgba(212, 168, 83, .35);
        }

        .nav-link.active i {
            color: var(--primary);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: .45rem;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: .95rem;
            padding: .55rem 1.2rem;
            border-radius: 12px;
            transition: all .28s ease;
            box-shadow: 0 4px 14px rgba(212, 168, 83, .3);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: #e2bd6d;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(212, 168, 83, .4);
        }

        .nav-cta i {
            font-size: .8rem;
        }

        .nav-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(255, 255, 255, .08);
            color: #fff;
            font-size: 1.1rem;
            border: 1px solid rgba(255, 255, 255, .1);
            transition: background .25s ease;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, .15);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 500px;
            display: flex;
            align-items: center;
            background: linear-gradient(100deg, rgba(6, 18, 38, .94) 0%, rgba(10, 34, 68, .82) 50%, rgba(15, 40, 75, .65) 100%),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 5.5rem 0 4.5rem;
            color: #fff;
            overflow: hidden;
        }

        .hero::after {
            content: "";
            position: absolute;
            inset: auto 0 0 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            opacity: .8;
        }

        .hero-breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            font-size: .9rem;
            color: rgba(255, 255, 255, .72);
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .1);
            padding: .3rem 1rem;
            border-radius: 30px;
            margin-bottom: 1.4rem;
        }

        .hero-breadcrumb a {
            transition: color .25s;
        }

        .hero-breadcrumb a:hover {
            color: var(--accent);
        }

        .hero-breadcrumb i {
            font-size: .7rem;
            color: var(--accent);
        }

        .hero-title {
            font-size: clamp(2rem, 4.6vw, 3.4rem);
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: .01em;
            max-width: 760px;
        }

        .hero-title .accent-text {
            color: var(--accent);
        }

        .hero-sub {
            margin-top: 1.2rem;
            font-size: 1.08rem;
            color: rgba(255, 255, 255, .78);
            max-width: 680px;
            line-height: 1.8;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: .9rem;
            margin-top: 2rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            font-weight: 600;
            border-radius: 14px;
            padding: .8rem 1.6rem;
            font-size: 1rem;
            transition: all .28s ease;
            line-height: 1.5;
        }

        .btn-accent {
            background: var(--accent);
            color: var(--primary);
            box-shadow: 0 8px 24px rgba(212, 168, 83, .35);
        }

        .btn-accent:hover {
            background: #e3bd6f;
            transform: translateY(-2px);
            box-shadow: 0 14px 34px rgba(212, 168, 83, .45);
        }

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, .4);
            color: #fff;
            background: rgba(255, 255, 255, .06);
        }

        .btn-outline-light:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(255, 255, 255, .1);
            transform: translateY(-2px);
        }

        .hero-data {
            display: grid;
            grid-template-columns: repeat(3, auto);
            gap: 1.2rem 2.4rem;
            margin-top: 2.6rem;
            padding-top: 1.8rem;
            border-top: 1px solid rgba(255, 255, 255, .14);
        }

        .hero-data-item .num {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }

        .hero-data-item .label {
            font-size: .88rem;
            color: rgba(255, 255, 255, .65);
        }

        /* ===== Section ===== */
        .section {
            padding: 4.5rem 0;
        }

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

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

        .sec-head {
            max-width: 720px;
            margin-bottom: 3rem;
        }

        .sec-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .sec-tag {
            display: inline-flex;
            align-items: center;
            gap: .35rem;
            font-size: .85rem;
            font-weight: 600;
            color: var(--accent-2);
            background: var(--accent-soft);
            padding: .3rem 1rem;
            border-radius: 30px;
            margin-bottom: .8rem;
        }

        .sec-title {
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            letter-spacing: .01em;
        }

        .sec-sub {
            margin-top: .8rem;
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.8;
        }

        /* ===== Grid ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.4rem;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.4rem;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.4rem;
        }

        @media (min-width: 640px) {
            .grid-2 {
                grid-template-columns: repeat(2, 1fr);
            }

            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

            .grid-4 {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        /* ===== Feature Card ===== */
        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 2rem 1.8rem;
            transition: all .3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
            opacity: 0;
            transition: opacity .3s ease;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(212, 168, 83, .4);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .icon-box {
            width: 58px;
            height: 58px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            background: linear-gradient(135deg, var(--primary-2), var(--primary));
            color: var(--accent);
            margin-bottom: 1.2rem;
            box-shadow: 0 10px 24px rgba(10, 30, 60, .18);
        }

        .feature-card h3 {
            font-size: 1.18rem;
            font-weight: 700;
            margin-bottom: .55rem;
        }

        .feature-card p {
            font-size: .95rem;
            color: var(--text-muted);
            line-height: 1.75;
        }

        /* ===== Media Card ===== */
        .media-card {
            border-radius: var(--radius-lg);
            background: var(--bg-white);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all .3s ease;
        }

        .media-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }

        .media-card img {
            width: 100%;
            height: 150px;
            object-fit: cover;
            transition: transform .5s ease;
        }

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

        .media-body {
            padding: 1.4rem 1.5rem 1.6rem;
        }

        .media-body h3 {
            font-size: 1.12rem;
            font-weight: 700;
            margin-bottom: .4rem;
        }

        .media-body p {
            font-size: .92rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .media-link {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            margin-top: .8rem;
            font-size: .92rem;
            font-weight: 600;
            color: var(--accent-2);
            transition: gap .25s ease;
        }

        .media-link:hover {
            gap: .65rem;
            color: var(--primary);
        }

        /* ===== Access Guide ===== */
        .guide-card {
            display: flex;
            gap: 1rem;
            background: rgba(255, 255, 255, .7);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 1.6rem;
            transition: all .3s ease;
        }

        .guide-card:hover {
            background: #fff;
            box-shadow: var(--shadow-md);
        }

        .guide-icon {
            flex-shrink: 0;
            width: 46px;
            height: 46px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: var(--accent);
            font-size: 1.1rem;
        }

        .guide-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: .3rem;
        }

        .guide-card p {
            font-size: .92rem;
            color: var(--text-muted);
        }

        /* ===== Steps ===== */
        .steps {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.3rem;
            counter-reset: step;
        }

        .step-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 1.6rem 1.7rem;
            position: relative;
            transition: all .3s ease;
        }

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

        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent), var(--accent-2));
            color: var(--primary);
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
            box-shadow: 0 6px 16px rgba(212, 168, 83, .35);
        }

        .step-item h3 {
            font-size: 1.08rem;
            font-weight: 700;
        }

        .step-item p {
            font-size: .92rem;
            color: var(--text-muted);
            margin-top: .3rem;
            line-height: 1.7;
        }

        @media (min-width: 768px) {
            .steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .steps {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        /* ===== Post List ===== */
        .post-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.2rem;
        }

        .post-item {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.2rem 1.5rem;
            transition: all .3s ease;
        }

        .post-item:hover {
            border-color: rgba(212, 168, 83, .45);
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }

        .post-date {
            flex-shrink: 0;
            text-align: center;
            background: var(--primary);
            color: #fff;
            border-radius: 14px;
            padding: .5rem .7rem;
            min-width: 62px;
        }

        .post-date .day {
            font-size: 1.25rem;
            font-weight: 800;
            line-height: 1;
        }

        .post-date .mon {
            font-size: .72rem;
            color: var(--accent);
            margin-top: 2px;
        }

        .post-info {
            flex: 1;
            min-width: 0;
        }

        .post-info h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: .25rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .post-info p {
            font-size: .9rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .post-tag {
            flex-shrink: 0;
            font-size: .78rem;
            font-weight: 600;
            color: var(--accent-2);
            background: var(--accent-soft);
            padding: .25rem .7rem;
            border-radius: 30px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
            max-width: 920px;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 0;
            transition: all .3s ease;
            overflow: hidden;
        }

        .faq-item.open {
            border-color: rgba(212, 168, 83, .55);
            box-shadow: var(--shadow-sm);
        }

        .faq-q {
            display: flex;
            align-items: center;
            gap: .9rem;
            padding: 1.15rem 1.4rem;
            cursor: pointer;
            font-size: 1.02rem;
            font-weight: 600;
            color: var(--text);
            width: 100%;
            text-align: left;
            background: none;
        }

        .faq-q i {
            color: var(--accent);
            font-size: .92rem;
            transition: transform .3s ease;
        }

        .faq-q i:last-child {
            margin-left: auto;
            color: var(--accent-2);
        }

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

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease, padding .3s ease;
            padding: 0 1.4rem;
            font-size: .95rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .faq-item.open .faq-a {
            padding: 0 1.4rem 1.2rem;
        }

        /* ===== CTA ===== */
        .cta-panel {
            position: relative;
            border-radius: 26px;
            overflow: hidden;
            padding: 4rem 2rem;
            text-align: center;
            color: #fff;
            background: linear-gradient(120deg, rgba(6, 18, 38, .93), rgba(16, 41, 79, .88)),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            box-shadow: var(--shadow-lg);
        }

        .cta-panel h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 700;
            margin-bottom: .8rem;
        }

        .cta-panel p {
            max-width: 580px;
            margin: 0 auto 2rem;
            color: rgba(255, 255, 255, .78);
            font-size: 1.02rem;
        }

        .cta-btns {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: .9rem;
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
        }

        .btn-white:hover {
            background: var(--accent-soft);
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, .72);
            padding-top: 3.5rem;
            margin-top: 4rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.2rem;
            padding-bottom: 2.4rem;
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr;
                gap: 3rem;
            }
        }

        .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: .6rem;
            margin-bottom: .8rem;
        }

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

        .footer-brand p {
            font-size: .93rem;
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 1rem;
            position: relative;
            padding-bottom: .55rem;
        }

        .footer-col h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 30px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .footer-col ul li {
            margin-bottom: .55rem;
        }

        .footer-col ul li a {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            color: rgba(255, 255, 255, .72);
            transition: all .25s ease;
            font-size: .94rem;
        }

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

        .footer-col ul li i {
            color: var(--accent);
            font-size: .8rem;
        }

        .footer-col ul li p {
            display: flex;
            align-items: center;
            gap: .5rem;
            color: rgba(255, 255, 255, .72);
            font-size: .94rem;
            margin: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 1.3rem 0;
            text-align: center;
            font-size: .88rem;
            color: rgba(255, 255, 255, .5);
        }

        .footer-bottom p {
            margin: 0;
        }

        /* ===== Responsive Nav ===== */
        @media (max-width: 767px) {
            .nav-toggle {
                display: inline-flex;
            }

            .main-nav {
                position: fixed;
                top: 74px;
                left: 1rem;
                right: 1rem;
                z-index: 60;
                flex-direction: column;
                align-items: stretch;
                gap: .5rem;
                background: rgba(10, 30, 60, .98);
                border: 1px solid rgba(255, 255, 255, .1);
                border-radius: 18px;
                padding: 1rem;
                display: none;
                box-shadow: 0 30px 60px rgba(0, 0, 0, .35);
                backdrop-filter: blur(12px);
            }

            .main-nav.nav-open {
                display: flex;
            }

            .nav-link,
            .nav-cta {
                justify-content: center;
                padding: .75rem 1rem;
                font-size: 1rem;
            }

            .nav-cta {
                margin-top: .2rem;
            }
        }

        @media (min-width: 768px) {
            .hero {
                min-height: 440px;
            }
        }

        @media (min-width: 1024px) {
            .hero {
                min-height: 520px;
            }
        }

        @media (max-width: 640px) {
            .section {
                padding: 3.2rem 0;
            }

            .hero {
                padding: 4rem 0 3.5rem;
                min-height: auto;
            }

            .hero-data {
                grid-template-columns: 1fr;
                gap: .8rem;
            }

            .hero-data-item {
                display: flex;
                align-items: baseline;
                gap: .5rem;
            }

            .post-item {
                flex-wrap: wrap;
                padding: 1rem;
            }

            .post-tag {
                margin-left: auto;
            }

            .cta-panel {
                padding: 3rem 1.4rem;
            }
        }

        :focus-visible {
            outline: 3px solid rgba(212, 168, 83, .55);
            outline-offset: 2px;
            border-radius: 6px;
        }

/* roulang page: article */
:root {
            --primary: #1e3a5f;
            --primary-dark: #14283f;
            --primary-light: #2d4c7a;
            --accent: #d4a24e;
            --accent-light: #ecd9b8;
            --bg: #f6f8fb;
            --card-bg: #ffffff;
            --text: #1b2a3a;
            --text-muted: #5a6c7d;
            --border: #e7edf3;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 10px rgba(30, 58, 95, .06);
            --shadow: 0 10px 30px rgba(30, 58, 95, .08);
            --shadow-lg: 0 20px 50px rgba(30, 58, 95, .14);
            --transition: .25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: 1220px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            background: rgba(255, 255, 255, .92);
            border-bottom: 1px solid var(--border);
            transition: box-shadow .3s;
        }

        .site-header.scrolled {
            box-shadow: 0 8px 30px rgba(30, 58, 95, .08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 11px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: .3px;
            transition: opacity .25s;
        }

        .logo:hover {
            opacity: .85;
        }

        .logo i {
            font-size: 24px;
            color: var(--accent);
            background: linear-gradient(135deg, #f6e3c4, #d4a24e);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            background: #f1f5f9;
            padding: 6px;
            border-radius: 999px;
            box-shadow: inset 0 1px 2px rgba(30, 58, 95, .04);
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 999px;
            color: var(--text);
            font-weight: 600;
            font-size: 14.5px;
            white-space: nowrap;
            transition: all var(--transition);
        }

        .nav-link i {
            font-size: 14px;
            opacity: .8;
        }

        .nav-link:hover {
            background: rgba(255, 255, 255, .85);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(30, 58, 95, .25);
        }

        .nav-link.active i {
            opacity: 1;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 999px;
            background: linear-gradient(135deg, #d4a24e, #e0b96c);
            color: #1b2a3a;
            font-weight: 700;
            font-size: 14.5px;
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(212, 162, 78, .3);
            transition: all var(--transition);
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(212, 162, 78, .4);
        }

        .menu-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border: 1px solid var(--border);
            border-radius: 12px;
            background: #fff;
            color: var(--primary);
            font-size: 18px;
            cursor: pointer;
            transition: all .25s;
        }

        .menu-toggle:hover {
            background: var(--bg);
            border-color: var(--primary);
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            padding: 110px 0 96px;
            background: linear-gradient(135deg, #101f2f 0%, #1e3a5f 60%, #2d4c7a 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            isolation: isolate;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(16, 31, 47, .94) 20%, rgba(30, 58, 95, .82) 55%, rgba(45, 76, 122, .45));
            z-index: -1;
        }

        .article-hero .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 13.5px;
            color: rgba(255, 255, 255, .65);
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, .75);
            transition: color .25s;
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb i {
            font-size: 11px;
        }

        .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .22);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 7px 16px;
            border-radius: 999px;
            backdrop-filter: blur(6px);
            margin-bottom: 20px;
        }

        .article-hero h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.35;
            color: #fff;
            max-width: 860px;
            margin-bottom: 24px;
            text-wrap: balance;
        }

        .article-meta-line {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: rgba(255, 255, 255, .72);
            font-size: 14px;
        }

        .article-meta-line span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .article-meta-line i {
            color: var(--accent);
            font-size: 13px;
        }

        /* ===== Article Main ===== */
        .article-main {
            padding: 64px 0 40px;
        }

        .article-wrap {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        .article-body {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: var(--shadow);
        }

        .content-body {
            color: #2a3b4c;
            font-size: 16px;
            line-height: 1.9;
        }

        .content-body h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin: 38px 0 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border);
        }

        .content-body h3 {
            font-size: 19px;
            font-weight: 650;
            color: var(--primary-dark);
            margin: 30px 0 12px;
        }

        .content-body p {
            margin-bottom: 20px;
        }

        .content-body ul,
        .content-body ol {
            margin: 16px 0 22px 24px;
        }

        .content-body ul {
            list-style: disc;
        }

        .content-body ol {
            list-style: decimal;
        }

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

        .content-body img {
            border-radius: 14px;
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }

        .content-body blockquote {
            border-left: 4px solid var(--accent);
            background: #faf7f0;
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 26px 0;
            color: #5c5144;
        }

        .content-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .content-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }

        .content-body th,
        .content-body td {
            border: 1px solid var(--border);
            padding: 11px 15px;
            text-align: left;
        }

        .content-body th {
            background: var(--bg);
            font-weight: 600;
            color: var(--primary);
        }

        .content-body code {
            background: #f0f3f7;
            border-radius: 6px;
            padding: 2px 8px;
            font-size: 14px;
            color: var(--primary);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 110px;
        }

        .side-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 26px;
            box-shadow: var(--shadow-sm);
            transition: transform .3s, box-shadow .3s;
        }

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

        .side-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 9px;
        }

        .side-card h4 i {
            color: var(--accent);
            font-size: 15px;
        }

        .side-info-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 14.5px;
            color: var(--text);
        }

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

        .side-info-list li i {
            color: var(--primary);
            width: 18px;
            text-align: center;
            font-size: 14px;
        }

        .side-info-list .info-label {
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag {
            display: inline-block;
            background: #eef2f7;
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 5px 14px;
            border-radius: 999px;
            border: 1px solid transparent;
            transition: all .25s;
        }

        .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .accent-card {
            background: linear-gradient(140deg, #1e3a5f, #2d4c7a);
            border: none;
            color: #fff;
        }

        .accent-card h4 {
            color: #fff;
        }

        .accent-card h4 i {
            color: var(--accent);
        }

        .accent-card p {
            color: rgba(255, 255, 255, .8);
            font-size: 14px;
            margin: 0 0 18px;
            line-height: 1.7;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            padding: 12px 26px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 14.5px;
            border: none;
            cursor: pointer;
            transition: all .28s;
        }

        .btn i {
            font-size: 14px;
            transition: transform .25s;
        }

        .btn:hover i {
            transform: translateX(4px);
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(30, 58, 95, .22);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(30, 58, 95, .3);
        }

        .btn-accent {
            background: linear-gradient(135deg, #d4a24e, #e0b96c);
            color: #1b2a3a;
            box-shadow: 0 6px 18px rgba(212, 162, 78, .35);
            width: 100%;
            justify-content: center;
        }

        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(212, 162, 78, .45);
        }

        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
            font-weight: 600;
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-light {
            background: #fff;
            color: var(--primary);
        }

        .btn-light:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, .25);
        }

        /* ===== Not Found ===== */
        .not-found {
            text-align: center;
            padding: 48px 20px;
        }

        .not-found i {
            font-size: 54px;
            color: var(--accent);
            display: block;
            margin-bottom: 18px;
        }

        .not-found h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .not-found p {
            color: var(--text-muted);
            margin-bottom: 26px;
            font-size: 15px;
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: 60px 0 70px;
            background: transparent;
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-header h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: -12px;
            transform: translateX(-50%);
            width: 48px;
            height: 3px;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 15px;
            margin-top: 24px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .related-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all .35s;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(30, 58, 95, .15);
        }

        .related-thumb {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: #e8edf3;
        }

        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .related-card:hover .related-thumb img {
            transform: scale(1.06);
        }

        .related-thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(20, 40, 63, .42));
            pointer-events: none;
        }

        .badge-date {
            position: absolute;
            left: 16px;
            bottom: 14px;
            z-index: 2;
            background: rgba(255, 255, 255, .92);
            color: var(--primary);
            font-size: 12.5px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            backdrop-filter: blur(6px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, .12);
        }

        .related-info {
            padding: 22px 24px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-cat {
            font-size: 12.5px;
            color: var(--accent);
            font-weight: 700;
            letter-spacing: .3px;
            text-transform: uppercase;
            margin-bottom: 9px;
        }

        .related-info h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-info p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }

        .related-link {
            margin-top: auto;
            font-size: 13.5px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 7px;
            transition: gap .25s;
        }

        .related-link i {
            font-size: 12px;
        }

        .related-card:hover .related-link {
            gap: 11px;
            color: var(--primary-dark);
        }

        .no-related {
            text-align: center;
            padding: 40px;
            color: var(--text-muted);
            font-size: 15px;
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }

        /* ===== Platform Overview ===== */
        .platform-overview {
            padding: 80px 0;
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .overview-grid {
            display: grid;
            grid-template-columns: 1.05fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .overview-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .overview-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 380px;
        }

        .overview-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(30, 58, 95, .08), transparent 60%);
            pointer-events: none;
        }

        .overview-content h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 18px;
        }

        .overview-content>p {
            color: var(--text-muted);
            font-size: 15.5px;
            line-height: 1.8;
            margin-bottom: 26px;
        }

        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-bottom: 30px;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 13px;
            font-size: 15px;
            color: var(--text);
        }

        .feature-list li i {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #d4a24e, #e0b96c);
            border-radius: 50%;
            font-size: 10px;
            color: #fff;
            margin-top: 4px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 80px 0;
            background: var(--bg);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px;
            transition: all .3s;
        }

        .faq-item:hover {
            border-color: rgba(30, 58, 95, .18);
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }

        .faq-item h3 {
            font-size: 16.5px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 11px;
            margin-bottom: 14px;
        }

        .faq-item h3 i {
            color: var(--accent);
            font-size: 17px;
        }

        .faq-item p {
            color: var(--text-muted);
            font-size: 14.5px;
            line-height: 1.75;
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 84px 0;
            background: linear-gradient(135deg, #14283f, #1e3a5f 55%, #2d4c7a);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
            isolation: isolate;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(16, 31, 47, .78);
            z-index: -1;
        }

        .cta-inner {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, .78);
            font-size: 16px;
            margin-bottom: 32px;
            line-height: 1.75;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0e1b28;
            color: rgba(255, 255, 255, .7);
            padding: 70px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 11px;
            font-size: 21px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer-logo i {
            color: var(--accent);
            font-size: 23px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .58);
            max-width: 360px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 22px;
            position: relative;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 26px;
            height: 2px;
            border-radius: 3px;
            background: var(--accent);
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-col ul a {
            color: rgba(255, 255, 255, .6);
            font-size: 14.5px;
            display: inline-flex;
            align-items: center;
            gap: 9px;
            transition: all .25s;
        }

        .footer-col ul a i {
            font-size: 11px;
            color: var(--accent);
            transition: transform .25s;
        }

        .footer-col ul a:hover {
            color: #fff;
        }

        .footer-col ul a:hover i {
            transform: translateX(4px);
        }

        .footer-col ul li {
            color: rgba(255, 255, 255, .6);
            font-size: 14.5px;
            display: flex;
            align-items: center;
            gap: 9px;
        }

        .footer-col ul li i {
            color: var(--accent);
            font-size: 13px;
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, .06);
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-wrap {
                grid-template-columns: 1fr;
            }

            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
                gap: 20px;
            }

            .side-card {
                flex: 1 1 260px;
            }

            .accent-card {
                flex-basis: 100%;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .overview-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .overview-media img {
                min-height: 300px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 66px;
            }

            .menu-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: 72px;
                left: 16px;
                right: 16px;
                background: rgba(255, 255, 255, .98);
                border-radius: 18px;
                box-shadow: 0 20px 50px rgba(15, 30, 45, .2);
                flex-direction: column;
                align-items: stretch;
                padding: 14px;
                display: none;
                z-index: 200;
                border: 1px solid var(--border);
            }

            .main-nav.open {
                display: flex;
            }

            .nav-link,
            .nav-cta {
                width: 100%;
                justify-content: center;
                border-radius: 12px;
                padding: 14px 18px;
            }

            .article-hero {
                padding: 80px 0 68px;
            }

            .article-hero h1 {
                font-size: 27px;
            }

            .article-body {
                padding: 30px 24px;
            }

            .content-body {
                font-size: 15px;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

            .cta-inner h2 {
                font-size: 26px;
            }

            .faq-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

            .logo {
                font-size: 19px;
            }

            .logo i {
                font-size: 21px;
            }

            .article-hero h1 {
                font-size: 23px;
            }

            .article-meta-line {
                gap: 12px;
                font-size: 13px;
                flex-direction: column;
                align-items: flex-start;
            }

            .article-body {
                padding: 24px 18px;
                border-radius: 16px;
            }

            .content-body h2 {
                font-size: 20px;
            }

            .content-body h3 {
                font-size: 17px;
            }

            .section-header h2 {
                font-size: 24px;
            }

            .section-header p {
                font-size: 14px;
            }

            .related-info {
                padding: 18px 18px 22px;
            }

            .overview-content h2 {
                font-size: 24px;
            }

            .overview-media img {
                min-height: 220px;
            }

            .faq-item {
                padding: 22px 20px;
            }

            .cta-section {
                padding: 64px 0;
            }

            .cta-inner h2 {
                font-size: 23px;
            }

            .footer-grid {
                gap: 32px;
            }

            .footer-col h4 {
                margin-bottom: 18px;
            }
        }

        @media (max-width: 360px) {
            .logo {
                font-size: 17px;
                gap: 8px;
            }

            .article-meta-line span {
                flex-wrap: wrap;
            }
        }