/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d3f8e;
            --primary-dark: #0f1a4a;
            --accent: #e8a838;
            --accent-hover: #d4952e;
            --accent-light: #f5d48a;
            --bg: #f5f7fb;
            --bg-card: #ffffff;
            --bg-dark: #0f1a4a;
            --bg-gray: #f0f2f6;
            --text: #1a1a2e;
            --text-light: #6b7a8f;
            --text-white: #ffffff;
            --text-muted: #9aa6b5;
            --border: #e8ecf1;
            --border-light: #f0f2f6;
            --radius: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-xs: 6px;
            --shadow: 0 4px 24px rgba(26,42,108,0.08);
            --shadow-hover: 0 12px 48px rgba(26,42,108,0.15);
            --shadow-lg: 0 24px 64px rgba(26,42,108,0.12);
            --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --spacing-section: 100px;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== 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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
        h1 { font-size: 3rem; }
        h2 { font-size: 2.25rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.25rem; }
        p { margin-bottom: 1rem; }
        strong { font-weight: 700; }

        /* ===== Utility ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-title h2 {
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .section-title p {
            color: var(--text-light);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
        }
        .text-accent { color: var(--accent); }
        .text-center { text-align: center; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .gap-4 { gap: 16px; }
        .gap-6 { gap: 24px; }
        .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
        .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 36px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
            white-space: nowrap;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(232,168,56,0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border-color: rgba(255,255,255,0.5);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.12);
            border-color: var(--text-white);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-light {
            background: var(--text-white);
            color: var(--primary);
            border-color: var(--text-white);
        }
        .btn-light:hover {
            background: var(--bg);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0,0,0,0.1);
        }
        .btn-sm {
            padding: 10px 24px;
            font-size: 0.875rem;
        }
        .btn i { font-size: 1.1em; }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 50px;
            background: var(--accent-light);
            color: var(--primary-dark);
            letter-spacing: 0.02em;
        }
        .badge-primary {
            background: var(--primary);
            color: var(--text-white);
        }
        .badge-outline {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-light);
        }

        /* ===== Card ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 24px;
        }
        .card-body h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-body p {
            color: var(--text-light);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .card-meta i { margin-right: 4px; }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(26,42,108,0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
            transition: background 0.3s;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.02em;
        }
        .site-logo i {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .site-logo:hover { color: var(--accent); }
        .site-logo span { font-weight: 300; color: rgba(255,255,255,0.7); }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 20px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255,255,255,0.8);
            border-radius: 50px;
            transition: var(--transition);
        }
        .nav-list a:hover {
            color: var(--text-white);
            background: rgba(255,255,255,0.1);
        }
        .nav-list a.active {
            color: var(--primary-dark);
            background: var(--accent);
            font-weight: 600;
        }
        .nav-list a.active:hover { color: var(--primary-dark); }
        .nav-list .nav-cta {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
            padding: 8px 24px;
        }
        .nav-list .nav-cta:hover {
            background: var(--accent-hover);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        /* ===== Mobile Bottom Nav ===== */
        .bottom-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            height: 68px;
            background: rgba(26,42,108,0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 0 12px;
            align-items: center;
            justify-content: space-around;
        }
        .bottom-nav a {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            padding: 6px 16px;
            font-size: 0.7rem;
            color: rgba(255,255,255,0.6);
            border-radius: 12px;
            transition: var(--transition);
            min-width: 56px;
        }
        .bottom-nav a i {
            font-size: 1.4rem;
            transition: var(--transition);
        }
        .bottom-nav a:hover,
        .bottom-nav a.active {
            color: var(--accent);
        }
        .bottom-nav a.active i {
            transform: scale(1.1);
        }
        .bottom-nav .brand-tab {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: -0.02em;
        }
        .bottom-nav .brand-tab i {
            font-size: 1.5rem;
            color: var(--accent);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: var(--primary-dark);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.3;
            mix-blend-mode: overlay;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,42,108,0.92) 0%, rgba(15,26,74,0.88) 50%, rgba(26,42,108,0.9) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            padding: 40px 24px;
        }
        .hero-badge {
            display: inline-block;
            padding: 8px 24px;
            background: rgba(232,168,56,0.2);
            border: 1px solid rgba(232,168,56,0.3);
            border-radius: 50px;
            color: var(--accent);
            font-size: 0.9rem;
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.04em;
        }
        .hero h1 {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .hero h1 .highlight {
            color: var(--accent);
        }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.75);
            max-width: 600px;
            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: 48px;
            margin-top: 56px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
            color: var(--text-white);
        }
        .hero-stat .num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            margin-top: 4px;
        }

        /* ===== Features / Intro ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 28px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
            border: 1px solid var(--border-light);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }
        .feature-card .icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 16px;
            background: var(--bg);
            font-size: 1.8rem;
            color: var(--primary);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .feature-card p {
            color: var(--text-light);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* ===== Categories ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .cat-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            min-height: 280px;
            display: flex;
            align-items: flex-end;
        }
        .cat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .cat-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .cat-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(26,42,108,0.85) 0%, rgba(26,42,108,0.2) 100%);
        }
        .cat-card .info {
            position: relative;
            z-index: 2;
            padding: 32px 28px;
            width: 100%;
            color: var(--text-white);
        }
        .cat-card .info h3 {
            color: var(--text-white);
            font-size: 1.4rem;
            margin-bottom: 6px;
        }
        .cat-card .info p {
            color: rgba(255,255,255,0.75);
            font-size: 0.95rem;
            margin-bottom: 12px;
        }
        .cat-card .info .btn {
            padding: 8px 20px;
            font-size: 0.85rem;
        }

        /* ===== News / Post List ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .news-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .news-card .thumb {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
        }
        .news-card .body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .body .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .news-card .body .meta .cat {
            color: var(--accent);
            font-weight: 600;
        }
        .news-card .body h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            line-height: 1.4;
            flex: 1;
        }
        .news-card .body p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .empty-tip {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-light);
            font-size: 1.1rem;
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .empty-tip i {
            font-size: 2rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: block;
        }

        /* ===== Stats / Data ===== */
        .stats-section {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stats-item .num {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stats-item .label {
            font-size: 1rem;
            color: rgba(255,255,255,0.6);
            margin-top: 6px;
        }
        .stats-item .desc {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
            margin-top: 4px;
        }

        /* ===== Process / Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }
        .step-card {
            text-align: center;
            padding: 32px 24px;
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .step-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .step-card .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-white);
            font-size: 1.2rem;
            font-weight: 700;
        }
        .step-card h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }
        .step-card p {
            color: var(--text-light);
            font-size: 0.92rem;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 28px;
            font-size: 1.05rem;
            font-weight: 600;
            cursor: pointer;
            color: var(--text);
            background: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--accent);
            font-size: 1.1rem;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 28px 20px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.8;
            display: none;
        }
        .faq-answer.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            color: var(--text-white);
            text-align: center;
            padding: 80px 0;
        }
        .cta-section h2 {
            color: var(--text-white);
            font-size: 2.2rem;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.7);
            font-size: 1.1rem;
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-section .btn {
            font-size: 1.1rem;
            padding: 16px 48px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.6);
            padding: 48px 0 24px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-brand .site-logo {
            font-size: 1.3rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.5);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            color: var(--text-white);
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            padding: 4px 0;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.5);
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            margin-top: 40px;
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            :root { --spacing-section: 72px; }
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            .hero h1 { font-size: 2.6rem; }
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
            .footer-inner { grid-template-columns: repeat(2, 1fr); gap: 32px; }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 56px;
                --header-height: 64px;
            }
            body { padding-top: var(--header-height); padding-bottom: 68px; }
            .site-header { height: var(--header-height); }
            .nav-list { display: none; }
            .bottom-nav { display: flex; }
            .hero { min-height: 70vh; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 24px; margin-top: 36px; }
            .hero-stat .num { font-size: 1.8rem; }
            .features-grid { grid-template-columns: 1fr; gap: 20px; }
            .categories-grid { grid-template-columns: 1fr; gap: 20px; }
            .news-grid { grid-template-columns: 1fr; gap: 20px; }
            .steps-grid { grid-template-columns: 1fr; gap: 20px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .stats-item .num { font-size: 2rem; }
            .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
            .section-title { margin-bottom: 36px; }
            .section-title h2 { font-size: 1.6rem; }
            .footer-inner { grid-template-columns: 1fr; gap: 28px; text-align: center; }
            .footer-brand p { max-width: 100%; }
            .cat-card { min-height: 220px; }
            .cta-section { padding: 48px 0; }
            .cta-section h2 { font-size: 1.6rem; }
            .faq-question { padding: 16px 20px; font-size: 0.95rem; }
            .faq-answer { padding: 0 20px 16px; }
            .btn { padding: 12px 28px; font-size: 0.95rem; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero h1 { font-size: 1.6rem; }
            .hero p { font-size: 0.9rem; }
            .hero-stat .num { font-size: 1.4rem; }
            .hero-stats { gap: 16px; }
            .stats-item .num { font-size: 1.6rem; }
            .stats-grid { gap: 16px; }
            h2 { font-size: 1.4rem; }
            .card-body { padding: 16px; }
            .cat-card .info { padding: 20px; }
            .cat-card .info h3 { font-size: 1.1rem; }
            .bottom-nav a { padding: 4px 10px; min-width: 48px; }
            .bottom-nav a i { font-size: 1.2rem; }
            .btn { padding: 10px 22px; font-size: 0.9rem; }
            .hero-actions { flex-direction: column; width: 100%; }
            .hero-actions .btn { width: 100%; justify-content: center; }
        }

        /* ===== Focus & Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        .btn:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #0d1b2a;
            --text-dark: #1a1a2e;
            --text-main: #2b2d42;
            --text-muted: #6c757d;
            --text-light: #f8f9fa;
            --border: #e0e0e0;
            --border-light: #f0f0f0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 8px 35px rgba(0, 0, 0, 0.15);
            --shadow-lg: 0 12px 50px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s ease;
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
            --footer-bg: #0d1b2a;
        }

        /* ===== 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: var(--text-dark);
            font-weight: 700;
        }

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

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header ===== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--header-height);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 24px;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.5px;
        }
        .site-logo i {
            color: var(--primary);
            font-size: 28px;
        }
        .site-logo span {
            font-weight: 400;
            color: var(--text-muted);
            font-size: 16px;
            letter-spacing: 0;
        }
        .site-logo:hover {
            color: var(--text-dark);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            color: var(--text-main);
            font-size: 15px;
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover {
            background: rgba(230, 57, 70, 0.06);
            color: var(--primary);
        }
        .nav-list a.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.08);
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-list a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a.nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.35);
        }

        /* ===== Hero / Banner ===== */
        .category-banner {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1a2a4a 100%);
            padding: 80px 0 72px;
            position: relative;
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-banner h1 {
            font-size: 42px;
            color: #fff;
            margin-bottom: 16px;
            font-weight: 800;
            letter-spacing: -0.5px;
        }
        .category-banner h1 i {
            color: var(--primary-light);
            margin-right: 10px;
        }
        .category-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 700px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 12px;
        }
        .banner-tags span {
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.9);
        }
        .banner-tags span i {
            margin-right: 6px;
            color: var(--primary-light);
        }

        /* ===== Section Common ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }

        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-title p {
            color: var(--text-muted);
            font-size: 17px;
            max-width: 600px;
            margin: 0 auto;
        }
        .section-title .title-icon {
            color: var(--primary);
            font-size: 36px;
            margin-bottom: 8px;
            display: block;
        }

        /* ===== Cards Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .card-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .card-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .card-item .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius) var(--radius) 0 0;
            display: block;
        }
        .card-item .card-body {
            padding: 24px 22px 26px;
        }
        .card-item .card-body h3 {
            font-size: 19px;
            margin-bottom: 10px;
            font-weight: 700;
        }
        .card-item .card-body h3 a {
            color: var(--text-dark);
        }
        .card-item .card-body h3 a:hover {
            color: var(--primary);
        }
        .card-item .card-body p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .card-item .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .card-item .card-meta i {
            margin-right: 4px;
            color: var(--primary-light);
        }
        .card-item .badge {
            display: inline-block;
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        /* ===== Icon Grid (赛事类型) ===== */
        .icon-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .icon-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 32px 20px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: default;
        }
        .icon-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .icon-card .icon-wrap {
            width: 68px;
            height: 68px;
            margin: 0 auto 18px;
            background: rgba(230, 57, 70, 0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            color: var(--primary);
            transition: var(--transition);
        }
        .icon-card:hover .icon-wrap {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .icon-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .icon-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.6;
        }

        /* ===== Steps / Flow ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 32px 22px 28px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            position: relative;
            transition: var(--transition);
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-card::before {
            counter-increment: step;
            content: '0' counter(step);
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 42px;
            font-weight: 900;
            color: rgba(230, 57, 70, 0.08);
            line-height: 1;
        }
        .step-card .step-icon {
            font-size: 36px;
            color: var(--primary);
            margin-bottom: 16px;
            display: block;
        }
        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .step-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
        }

        /* ===== Featured List ===== */
        .featured-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .featured-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            background: var(--bg-white);
            padding: 20px 24px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .featured-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .featured-item .fi-rank {
            font-size: 28px;
            font-weight: 900;
            color: var(--primary-light);
            min-width: 40px;
            line-height: 1;
        }
        .featured-item .fi-rank.gold {
            color: #f4a261;
        }
        .featured-item .fi-rank.silver {
            color: #a8b5c5;
        }
        .featured-item .fi-rank.bronze {
            color: #cd7f32;
        }
        .featured-item .fi-body h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .featured-item .fi-body p {
            color: var(--text-muted);
            font-size: 14px;
        }
        .featured-item .fi-body .fi-tag {
            display: inline-block;
            background: rgba(69, 123, 157, 0.1);
            color: var(--secondary-light);
            padding: 1px 10px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            margin-top: 6px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item summary {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-dark);
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 18px;
            color: var(--primary);
            transition: var(--transition);
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px solid var(--border-light);
            padding-top: 16px;
            margin-top: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 18px;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 16px;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .cta-btn-primary {
            background: #fff;
            color: var(--primary);
        }
        .cta-btn-primary:hover {
            background: transparent;
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
        }
        .cta-btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }
        .cta-btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--footer-bg);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand .site-logo {
            color: #fff;
            margin-bottom: 14px;
            display: inline-flex;
        }
        .footer-brand .site-logo span {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 10px;
            max-width: 360px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-col a i {
            margin-right: 8px;
            width: 16px;
            color: var(--primary-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 40px;
            padding: 20px 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Mobile Bottom Tab ===== */
        .mobile-bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--bg-white);
            border-top: 1px solid var(--border);
            padding: 6px 0 env(safe-area-inset-bottom, 6px);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.06);
            justify-content: space-around;
            align-items: center;
        }
        .mobile-bottom-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            font-size: 11px;
            color: var(--text-muted);
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            min-width: 60px;
        }
        .mobile-bottom-tab a i {
            font-size: 20px;
        }
        .mobile-bottom-tab a.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }
        .mobile-bottom-tab a.active i {
            transform: scale(1.1);
        }
        .mobile-bottom-tab a:hover {
            color: var(--primary);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .icon-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-banner h1 {
                font-size: 34px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .nav-list a {
                padding: 6px 12px;
                font-size: 14px;
            }
            .nav-list a.nav-cta {
                padding: 6px 16px;
                font-size: 13px;
            }
            .category-banner {
                padding: 56px 0 48px;
                min-height: 280px;
            }
            .category-banner h1 {
                font-size: 28px;
            }
            .category-banner p {
                font-size: 16px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title h2 {
                font-size: 26px;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .icon-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .featured-list {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-btn {
                padding: 12px 28px;
                font-size: 15px;
            }
            .banner-tags span {
                font-size: 12px;
                padding: 4px 14px;
            }
            .site-header {
                padding-bottom: 0;
            }
            .mobile-bottom-tab {
                display: flex;
            }
            body {
                padding-bottom: 64px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 16px;
            }
            .nav-list a {
                font-size: 12px;
                padding: 4px 10px;
            }
            .nav-list a.nav-cta {
                padding: 4px 14px;
                font-size: 12px;
            }
            .site-logo {
                font-size: 20px;
            }
            .site-logo span {
                font-size: 13px;
            }
            .category-banner h1 {
                font-size: 24px;
            }
            .category-banner p {
                font-size: 14px;
            }
            .icon-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .icon-card {
                padding: 20px 14px;
            }
            .icon-card .icon-wrap {
                width: 52px;
                height: 52px;
                font-size: 22px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .step-card {
                padding: 24px 18px 22px;
            }
            .section-title h2 {
                font-size: 22px;
            }
            .faq-item summary {
                padding: 14px 18px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 18px 16px;
                font-size: 14px;
            }
            .cta-section {
                padding: 44px 0;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .cta-btn-group {
                flex-direction: column;
                align-items: center;
            }
            .mobile-bottom-tab a {
                font-size: 10px;
                min-width: 50px;
            }
            .mobile-bottom-tab a i {
                font-size: 18px;
            }
        }

        /* ===== Extra Utilities ===== */
        .text-center {
            text-align: center;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .badge-primary {
            display: inline-block;
            background: rgba(230, 57, 70, 0.12);
            color: var(--primary);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
        }

        /* scrollbar */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-light);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-muted);
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
    :root {
        --primary: #e63946;
        --primary-dark: #c1121f;
        --primary-light: #ff6b6b;
        --secondary: #1d3557;
        --secondary-light: #457b9d;
        --accent: #f4a261;
        --bg-body: #f8f9fa;
        --bg-card: #ffffff;
        --bg-dark: #1d3557;
        --bg-dark-light: #264653;
        --text-primary: #1a1a2e;
        --text-secondary: #4a4a6a;
        --text-light: #8a8aaa;
        --text-white: #ffffff;
        --border-color: #e8e8f0;
        --radius-sm: 6px;
        --radius-md: 12px;
        --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);
        --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font-sans: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
        --container-w: 1200px;
        --header-h: 72px;
    }

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

    /* ===== 容器 ===== */
    .container {
        width: 100%;
        max-width: var(--container-w);
        margin: 0 auto;
        padding: 0 24px;
    }
    @media (max-width: 768px) { .container { padding: 0 16px; } }

    /* ===== 导航 ===== */
    .site-header {
        position: fixed;
        top: 0; left: 0; right: 0;
        height: var(--header-h);
        background: rgba(255,255,255,0.96);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border-color);
        z-index: 1000;
        transition: box-shadow var(--transition);
    }
    .site-header.scrolled { box-shadow: var(--shadow-sm); }
    .header-inner {
        max-width: var(--container-w);
        margin: 0 auto;
        padding: 0 24px;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .site-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 24px;
        font-weight: 800;
        color: var(--primary);
        letter-spacing: -0.5px;
    }
    .site-logo i { font-size: 28px; color: var(--accent); }
    .site-logo span {
        font-weight: 400;
        font-size: 16px;
        color: var(--text-light);
        letter-spacing: 0;
    }
    .nav-list {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .nav-list a {
        padding: 8px 18px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text-secondary);
        border-radius: var(--radius-sm);
        transition: all var(--transition);
        position: relative;
    }
    .nav-list a:hover { color: var(--primary); background: rgba(230,57,70,0.06); }
    .nav-list a.active {
        color: var(--primary);
        background: rgba(230,57,70,0.10);
        font-weight: 600;
    }
    .nav-list a.nav-cta {
        background: var(--primary);
        color: #fff;
        padding: 8px 22px;
        border-radius: 50px;
        font-weight: 600;
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .nav-list a.nav-cta:hover {
        background: var(--primary-dark);
        transform: translateY(-1px);
        box-shadow: 0 4px 15px rgba(230,57,70,0.35);
    }

    /* ===== 移动端底部 Tab ===== */
    .mobile-bottom-nav {
        display: none;
        position: fixed;
        bottom: 0; left: 0; right: 0;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-top: 1px solid var(--border-color);
        z-index: 1001;
        padding: 6px 0 env(safe-area-inset-bottom, 6px) 0;
        justify-content: space-around;
        box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
    }
    .mobile-bottom-nav a {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 2px;
        padding: 6px 12px;
        font-size: 11px;
        color: var(--text-light);
        transition: all var(--transition);
        border-radius: var(--radius-sm);
        min-width: 60px;
    }
    .mobile-bottom-nav a i { font-size: 20px; }
    .mobile-bottom-nav a.active { color: var(--primary); font-weight: 600; }
    .mobile-bottom-nav a.nav-cta-mobile {
        background: var(--primary);
        color: #fff;
        border-radius: 50px;
        padding: 6px 18px;
        flex-direction: row;
        gap: 6px;
        font-weight: 600;
        margin-top: -4px;
    }
    .mobile-bottom-nav a.nav-cta-mobile i { font-size: 16px; }

    /* ===== 文章 Banner ===== */
    .article-hero {
        position: relative;
        margin-top: var(--header-h);
        padding: 100px 0 80px;
        background: linear-gradient(135deg, var(--secondary) 0%, #0f1a2e 100%);
        overflow: hidden;
        min-height: 320px;
        display: flex;
        align-items: center;
    }
    .article-hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
        opacity: 0.20;
        mix-blend-mode: overlay;
    }
    .article-hero .hero-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(to bottom, rgba(29,53,87,0.3) 0%, rgba(29,53,87,0.92) 100%);
    }
    .article-hero .container {
        position: relative;
        z-index: 2;
    }
    .article-hero .category-tag {
        display: inline-block;
        padding: 6px 18px;
        background: var(--primary);
        color: #fff;
        font-size: 13px;
        font-weight: 600;
        border-radius: 50px;
        letter-spacing: 0.5px;
        margin-bottom: 16px;
    }
    .article-hero h1 {
        font-size: 36px;
        font-weight: 800;
        color: #fff;
        max-width: 900px;
        line-height: 1.25;
        margin-bottom: 20px;
        text-shadow: 0 2px 20px rgba(0,0,0,0.3);
    }
    .article-hero .meta-info {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        color: rgba(255,255,255,0.8);
        font-size: 14px;
    }
    .article-hero .meta-info span {
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .article-hero .meta-info i { color: var(--accent); }

    /* ===== 文章正文 ===== */
    .article-main {
        padding: 60px 0 40px;
        background: var(--bg-body);
    }
    .article-content {
        max-width: 820px;
        margin: 0 auto;
        background: #fff;
        border-radius: var(--radius-lg);
        padding: 48px 56px;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--border-color);
    }
    .article-content p {
        font-size: 17px;
        line-height: 1.85;
        color: var(--text-secondary);
        margin-bottom: 1.4em;
    }
    .article-content h2 {
        font-size: 26px;
        margin: 1.8em 0 0.6em;
        color: var(--text-primary);
    }
    .article-content h3 {
        font-size: 21px;
        margin: 1.6em 0 0.5em;
        color: var(--text-primary);
    }
    .article-content img {
        border-radius: var(--radius-md);
        margin: 1.8em auto;
        box-shadow: var(--shadow-sm);
    }
    .article-content blockquote {
        border-left: 4px solid var(--primary);
        background: #fef2f2;
        padding: 18px 24px;
        margin: 1.6em 0;
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        color: var(--text-secondary);
        font-style: italic;
    }
    .article-content ul, .article-content ol {
        margin: 1.2em 0;
        padding-left: 1.8em;
        color: var(--text-secondary);
    }
    .article-content li { margin-bottom: 0.5em; list-style: disc; }
    .article-content ol li { list-style: decimal; }
    .article-content a {
        color: var(--primary);
        border-bottom: 1px solid transparent;
    }
    .article-content a:hover { border-bottom-color: var(--primary); }

    /* ===== 文章底部信息 ===== */
    .article-footer-info {
        max-width: 820px;
        margin: 24px auto 0;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        padding: 20px 28px;
        background: #fff;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--border-color);
    }
    .article-footer-info .left {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        align-items: center;
    }
    .article-footer-info .tag {
        padding: 4px 14px;
        background: var(--bg-body);
        border: 1px solid var(--border-color);
        border-radius: 50px;
        font-size: 13px;
        color: var(--text-secondary);
    }
    .article-footer-info .tag i { margin-right: 4px; color: var(--primary); }
    .article-footer-info .right a {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 8px 20px;
        background: var(--primary);
        color: #fff;
        border-radius: 50px;
        font-size: 14px;
        font-weight: 600;
        transition: all var(--transition);
    }
    .article-footer-info .right a:hover {
        background: var(--primary-dark);
        transform: translateY(-2px);
        box-shadow: 0 4px 15px rgba(230,57,70,0.3);
    }

    /* ===== 文章不存在提示 ===== */
    .article-not-found {
        text-align: center;
        padding: 60px 30px;
    }
    .article-not-found i {
        font-size: 60px;
        color: var(--text-light);
        margin-bottom: 20px;
    }
    .article-not-found h2 {
        font-size: 28px;
        margin-bottom: 12px;
    }
    .article-not-found p {
        color: var(--text-secondary);
        margin-bottom: 24px;
    }
    .article-not-found a {
        display: inline-block;
        padding: 12px 32px;
        background: var(--primary);
        color: #fff;
        border-radius: 50px;
        font-weight: 600;
        transition: all var(--transition);
    }
    .article-not-found a:hover {
        background: var(--primary-dark);
        transform: translateY(-2px);
    }

    /* ===== 相关文章 ===== */
    .related-section {
        padding: 60px 0;
        background: #fff;
    }
    .related-section .section-title {
        text-align: center;
        font-size: 30px;
        margin-bottom: 12px;
    }
    .related-section .section-sub {
        text-align: center;
        color: var(--text-light);
        font-size: 16px;
        margin-bottom: 40px;
    }
    .related-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .related-card {
        background: var(--bg-body);
        border-radius: var(--radius-md);
        overflow: hidden;
        border: 1px solid var(--border-color);
        transition: all var(--transition);
    }
    .related-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-md);
    }
    .related-card .card-img {
        width: 100%;
        height: 200px;
        object-fit: cover;
        background: var(--border-color);
    }
    .related-card .card-body {
        padding: 20px 22px 24px;
    }
    .related-card .card-body h3 {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 8px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .related-card .card-body p {
        font-size: 14px;
        color: var(--text-secondary);
        margin-bottom: 12px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .related-card .card-body .date {
        font-size: 13px;
        color: var(--text-light);
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .related-card .card-body .date i { color: var(--primary); }

    /* ===== CTA ===== */
    .cta-section {
        padding: 70px 0;
        background: linear-gradient(135deg, var(--secondary) 0%, #0f1a2e 100%);
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
        opacity: 0.10;
        mix-blend-mode: overlay;
    }
    .cta-section .container { position: relative; z-index: 2; }
    .cta-section h2 {
        font-size: 32px;
        color: #fff;
        margin-bottom: 14px;
    }
    .cta-section p {
        color: rgba(255,255,255,0.8);
        font-size: 18px;
        max-width: 600px;
        margin: 0 auto 32px;
    }
    .cta-section .cta-btn {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 16px 40px;
        background: var(--primary);
        color: #fff;
        font-size: 18px;
        font-weight: 700;
        border-radius: 50px;
        transition: all var(--transition);
    }
    .cta-section .cta-btn:hover {
        background: var(--primary-dark);
        transform: translateY(-3px);
        box-shadow: 0 8px 30px rgba(230,57,70,0.4);
    }

    /* ===== 页脚 ===== */
    .site-footer {
        background: var(--bg-dark);
        color: rgba(255,255,255,0.85);
        padding: 60px 0 0;
    }
    .footer-inner {
        max-width: var(--container-w);
        margin: 0 auto;
        padding: 0 24px;
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1.2fr;
        gap: 40px;
    }
    .footer-brand .site-logo {
        color: #fff;
        margin-bottom: 14px;
    }
    .footer-brand .site-logo span { color: rgba(255,255,255,0.5); }
    .footer-brand p {
        font-size: 14px;
        line-height: 1.7;
        color: rgba(255,255,255,0.65);
        max-width: 340px;
    }
    .footer-col h4 {
        color: #fff;
        font-size: 16px;
        font-weight: 700;
        margin-bottom: 18px;
        position: relative;
        padding-bottom: 10px;
    }
    .footer-col h4::after {
        content: '';
        position: absolute;
        bottom: 0; left: 0;
        width: 32px;
        height: 3px;
        background: var(--primary);
        border-radius: 2px;
    }
    .footer-col a {
        display: block;
        padding: 5px 0;
        font-size: 14px;
        color: rgba(255,255,255,0.65);
        transition: all var(--transition);
    }
    .footer-col a:hover { color: #fff; padding-left: 4px; }
    .footer-col a i { width: 20px; color: var(--primary-light); }
    .footer-bottom {
        margin-top: 40px;
        padding: 20px 24px;
        text-align: center;
        border-top: 1px solid rgba(255,255,255,0.10);
        font-size: 14px;
        color: rgba(255,255,255,0.45);
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        .article-content { padding: 36px 32px; }
        .related-grid { grid-template-columns: repeat(2, 1fr); }
        .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
    }

    @media (max-width: 768px) {
        .nav-list a { padding: 6px 12px; font-size: 14px; }
        .nav-list a.nav-cta { padding: 6px 16px; font-size: 14px; }
        .article-hero { padding: 80px 0 60px; min-height: 260px; }
        .article-hero h1 { font-size: 26px; }
        .article-hero .meta-info { gap: 12px; font-size: 13px; }
        .article-content { padding: 28px 20px; }
        .article-content p { font-size: 16px; }
        .article-footer-info { flex-direction: column; gap: 16px; align-items: flex-start; }
        .related-grid { grid-template-columns: 1fr; }
        .cta-section h2 { font-size: 26px; }
        .cta-section p { font-size: 16px; }
        .footer-inner { grid-template-columns: 1fr; gap: 28px; }
        .mobile-bottom-nav { display: flex; }
        body { padding-bottom: 64px; }
        .article-content h2 { font-size: 22px; }
        .article-content h3 { font-size: 18px; }
    }

    @media (max-width: 520px) {
        .site-logo { font-size: 20px; }
        .site-logo span { font-size: 13px; }
        .nav-list a { font-size: 13px; padding: 4px 10px; }
        .nav-list a.nav-cta { padding: 4px 14px; font-size: 13px; }
        .article-hero h1 { font-size: 22px; }
        .article-hero .meta-info { font-size: 12px; gap: 8px; }
        .article-content { padding: 20px 16px; }
        .article-content p { font-size: 15px; }
        .cta-section .cta-btn { padding: 14px 28px; font-size: 16px; }
        .related-card .card-img { height: 160px; }
    }

    /* ===== 工具类 ===== */
    .text-center { text-align: center; }
    .mt-20 { margin-top: 20px; }
    .mb-20 { margin-bottom: 20px; }
    .gap-8 { gap: 8px; }
    .flex-center { display: flex; align-items: center; justify-content: center; }