/* roulang page: index */
:root {
            --primary: #f0b840;
            --primary-dark: #d49920;
            --primary-light: #f9d77e;
            --accent: #4da8da;
            --accent-dark: #2e8ab8;
            --bg-deep: #0a0e20;
            --bg-card: #111630;
            --bg-card-hover: #181d3a;
            --bg-nav: rgba(10, 14, 32, 0.94);
            --text: #e8eaf0;
            --text-strong: #ffffff;
            --text-soft: #a8b0c8;
            --text-muted: #6b7290;
            --border: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.14);
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.25);
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(240, 184, 64, 0.25);
            --shadow-glow-blue: 0 0 28px rgba(77, 168, 218, 0.22);
            --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --section-gap: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text);
            line-height: 1.7;
            min-height: 100vh;
            background-image: radial-gradient(ellipse at 50% 10%, rgba(77, 168, 218, 0.07) 0%, transparent 70%),
                radial-gradient(ellipse at 85% 60%, rgba(240, 184, 64, 0.05) 0%, transparent 55%),
                radial-gradient(ellipse at 15% 40%, rgba(120, 80, 200, 0.04) 0%, transparent 50%);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            outline: none;
            transition: all var(--transition);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }

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

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-nav);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .brand-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-strong);
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition);
        }
        .brand-logo:hover {
            color: var(--primary);
        }
        .brand-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary), #e89420);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 800;
            color: #1a0a00;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-links li a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 30px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-soft);
            white-space: nowrap;
            transition: all var(--transition);
            border: 1px solid transparent;
            background: transparent;
        }
        .nav-links li a:hover {
            color: var(--text-strong);
            background: rgba(255, 255, 255, 0.04);
            border-color: var(--border-light);
        }
        .nav-links li a.nav-active {
            color: #1a0a00;
            background: var(--primary);
            border-color: var(--primary);
            font-weight: 600;
            box-shadow: var(--shadow-glow);
        }
        .nav-links li a.nav-active:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            box-shadow: 0 0 36px rgba(240, 184, 64, 0.35);
        }
        .nav-cta {
            margin-left: 10px;
        }
        .nav-cta a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #1a0a00;
            background: var(--primary);
            white-space: nowrap;
            box-shadow: var(--shadow-glow);
            transition: all var(--transition);
        }
        .nav-cta a:hover {
            background: var(--primary-dark);
            box-shadow: 0 0 40px rgba(240, 184, 64, 0.4);
            transform: translateY(-1px);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-strong);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 6px;
            line-height: 1;
        }
        @media (max-width: 860px) {
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-nav);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                gap: 0;
                padding: 16px 20px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                z-index: 99;
                box-shadow: var(--shadow-lg);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links li a {
                display: flex;
                width: 100%;
                padding: 14px 16px;
                border-radius: var(--radius);
                font-size: 1rem;
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 6px;
                width: 100%;
            }
            .nav-cta a {
                display: flex;
                width: 100%;
                justify-content: center;
                padding: 14px;
                border-radius: var(--radius);
            }
            .menu-toggle {
                display: block;
            }
        }

        /* Hero */
        .hero-section {
            position: relative;
            padding: 90px 0 100px;
            text-align: center;
            overflow: hidden;
            background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            background-color: var(--bg-deep);
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 32, 0.55) 0%, rgba(10, 14, 32, 0.82) 60%, var(--bg-deep) 100%);
            z-index: 1;
        }
        .hero-section .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 30px;
            background: rgba(240, 184, 64, 0.12);
            border: 1px solid rgba(240, 184, 64, 0.28);
            color: var(--primary-light);
            font-size: 0.9rem;
            font-weight: 500;
            margin-bottom: 28px;
            letter-spacing: 0.03em;
        }
        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            animation: pulse-dot 1.6s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 6px var(--primary), 0 0 14px var(--primary);
            }
            50% {
                box-shadow: 0 0 18px var(--primary), 0 0 40px rgba(240, 184, 64, 0.6);
            }
        }
        .hero-title {
            font-size: clamp(2.2rem, 5vw, 3.5rem);
            font-weight: 800;
            color: var(--text-strong);
            line-height: 1.25;
            letter-spacing: 0.01em;
            margin-bottom: 20px;
        }
        .hero-title .highlight {
            color: var(--primary);
            position: relative;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-soft);
            max-width: 640px;
            margin: 0 auto 38px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #e89420);
            color: #1a0a00;
            box-shadow: var(--shadow-glow);
            border: none;
        }
        .btn-primary:hover {
            box-shadow: 0 0 44px rgba(240, 184, 64, 0.45);
            transform: translateY(-2px);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
        }
        .btn-outline {
            background: transparent;
            color: var(--text-strong);
            border: 2px solid var(--border-light);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(240, 184, 64, 0.06);
            box-shadow: var(--shadow-glow);
        }
        .btn-sm {
            padding: 9px 20px;
            font-size: 0.88rem;
            border-radius: 24px;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 32px;
            margin-top: 48px;
        }
        .hero-stat {
            text-align: center;
            min-width: 100px;
        }
        .hero-stat .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .hero-stat .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* Section common */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 10px;
        }
        .section-title {
            font-size: clamp(1.6rem, 3.5vw, 2.2rem);
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 10px;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-soft);
            max-width: 560px;
            margin: 0 auto;
        }

        /* Category Cards */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .cat-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .cat-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow);
            transform: translateY(-4px);
            background: var(--bg-card-hover);
        }
        .cat-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: var(--bg-card-hover);
        }
        .cat-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .cat-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
        }
        .cat-card-body p {
            font-size: 0.9rem;
            color: var(--text-soft);
            line-height: 1.6;
            flex: 1;
        }
        .cat-card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 12px;
            font-weight: 600;
            color: var(--primary);
            font-size: 0.9rem;
            transition: gap var(--transition);
        }
        .cat-card-link:hover {
            gap: 10px;
            color: var(--primary-light);
        }

        /* News list */
        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 20px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 22px 24px;
            border: 1px solid var(--border);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
            transform: translateY(-3px);
            background: var(--bg-card-hover);
        }
        .news-card .news-meta {
            display: flex;
            gap: 10px;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            flex-wrap: wrap;
        }
        .news-card .news-meta .tag {
            background: rgba(77, 168, 218, 0.15);
            color: var(--accent);
            padding: 3px 10px;
            border-radius: 12px;
            font-weight: 500;
            font-size: 0.76rem;
        }
        .news-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .news-card h3 a:hover {
            color: var(--primary);
        }
        .news-card .news-excerpt {
            font-size: 0.88rem;
            color: var(--text-soft);
            line-height: 1.6;
            flex: 1;
        }
        .news-empty {
            text-align: center;
            padding: 40px;
            color: var(--text-muted);
            font-size: 1rem;
            grid-column: 1 / -1;
        }

        /* Features */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .feature-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(240, 184, 64, 0.2), rgba(240, 184, 64, 0.05));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
        }
        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-soft);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            background: none;
            color: var(--text-strong);
            font-size: 0.98rem;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            cursor: pointer;
        }
        .faq-question .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition);
            font-size: 0.7rem;
            color: var(--text-muted);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
            color: var(--text-soft);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #141a35 0%, #1a1f40 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(240, 184, 64, 0.07);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: var(--text-soft);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }
        .cta-section .btn {
            position: relative;
            z-index: 1;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border);
            padding: 40px 0 28px;
            margin-top: var(--section-gap);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 12px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--text-soft);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid var(--border);
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 48px;
            }
            .hero-section {
                padding: 56px 0 64px;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat .stat-num {
                font-size: 1.5rem;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .news-list {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.92rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

/* roulang page: article */
:root {
            --color-primary: #1e3a5f;
            --color-primary-light: #2c5282;
            --color-accent: #e8870a;
            --color-accent-hover: #c57208;
            --color-accent-glow: #f59e0b;
            --color-bg: #f1f5f9;
            --color-surface: #ffffff;
            --color-surface-alt: #f8fafc;
            --color-dark: #0f1a2e;
            --color-text: #1e293b;
            --color-text-soft: #64748b;
            --color-text-light: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow: 0 4px 16px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.04);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
            --shadow-lg: 0 16px 40px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.06);
            --shadow-glow: 0 0 0 3px rgba(232,135,10,0.12), 0 8px 24px rgba(232,135,10,0.1);
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-stack: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
            --max-width-article: 800px;
            --nav-height: 68px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

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

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

        .container-narrow {
            width: 100%;
            max-width: var(--max-width-article);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ HEADER & NAV ============ */
        .site-header {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            background: rgba(255,255,255,0.95);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 24px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo-link:hover {
            color: var(--color-primary);
            opacity: 0.9;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-panel {
            display: flex;
            align-items: center;
            background: var(--color-surface-alt);
            border-radius: var(--radius-xl);
            padding: 6px;
            border: 1px solid var(--color-border);
            gap: 4px;
        }

        .nav-links {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 2px;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            border-radius: var(--radius-lg);
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--color-text);
            background: var(--color-surface);
            box-shadow: var(--shadow-sm);
        }

        .nav-links li a.nav-active {
            color: var(--color-primary);
            background: var(--color-surface);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }

        .nav-cta a {
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%) !important;
            color: #fff !important;
            font-weight: 600 !important;
            padding: 10px 22px !important;
            border-radius: var(--radius-lg) !important;
            box-shadow: 0 2px 8px rgba(232,135,10,0.3) !important;
            transition: all var(--transition-fast) !important;
        }

        .nav-cta a:hover {
            box-shadow: var(--shadow-glow) !important;
            transform: translateY(-1px);
            background: linear-gradient(135deg, var(--color-accent-hover) 0%, var(--color-accent) 100%) !important;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--color-text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-menu-btn:hover {
            background: var(--color-surface-alt);
        }

        /* ============ ARTICLE BANNER ============ */
        .article-banner {
            background: linear-gradient(135deg, var(--color-dark) 0%, #1a2d45 40%, #1e3a5f 100%);
            position: relative;
            padding: 48px 0;
            overflow: hidden;
        }

        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
        }

        .article-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--color-bg) 0%, transparent 100%);
        }

        .article-banner-inner {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            gap: 16px;
            padding: 16px 0 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.7);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .separator {
            color: rgba(255,255,255,0.4);
            font-size: 0.7rem;
        }

        .breadcrumb .current {
            color: rgba(255,255,255,0.55);
        }

        .article-banner .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(4px);
            color: var(--color-accent-glow);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            width: fit-content;
            border: 1px solid rgba(255,255,255,0.15);
        }

        .article-banner .category-badge i {
            font-size: 0.7rem;
        }

        .article-banner h1 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            letter-spacing: -0.01em;
            max-width: 700px;
        }

        .article-meta-row {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            color: rgba(255,255,255,0.65);
            font-size: 0.88rem;
        }

        .article-meta-row span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta-row i {
            font-size: 0.8rem;
            opacity: 0.8;
        }

        /* ============ MAIN CONTENT ============ */
        .article-main {
            flex: 1;
            padding: 0 0 60px;
            margin-top: -20px;
            position: relative;
            z-index: 2;
        }

        .article-content-wrapper {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 40px 48px;
            margin-top: 0;
        }

        .article-cover {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: var(--shadow);
        }

        .article-cover img {
            width: 100%;
            display: block;
            transition: transform var(--transition-slow);
        }

        .article-cover img:hover {
            transform: scale(1.01);
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--color-text);
        }

        .article-body h2 {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 36px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-border-light);
            letter-spacing: -0.01em;
        }

        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 28px 0 12px;
        }

        .article-body p {
            margin-bottom: 16px;
        }

        .article-body ul,
        .article-body ol {
            margin: 12px 0 20px 20px;
        }

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

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

        .article-body blockquote {
            border-left: 4px solid var(--color-accent);
            background: var(--color-surface-alt);
            padding: 16px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0;
            color: var(--color-text-soft);
            font-style: italic;
        }

        .article-body code {
            background: var(--color-surface-alt);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--color-accent-hover);
            border: 1px solid var(--color-border);
        }

        /* ============ NOT FOUND ============ */
        .not-found-state {
            text-align: center;
            padding: 60px 24px;
        }

        .not-found-icon {
            font-size: 4rem;
            color: var(--color-text-light);
            margin-bottom: 20px;
        }

        .not-found-state h2 {
            font-size: 1.6rem;
            color: var(--color-text);
            margin-bottom: 12px;
        }

        .not-found-state p {
            color: var(--color-text-soft);
            margin-bottom: 28px;
            font-size: 1.05rem;
        }

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-primary);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-lg);
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow);
        }

        .btn-back:hover {
            background: var(--color-primary-light);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        /* ============ SHARE & ACTIONS ============ */
        .article-actions-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 28px;
            margin-top: 32px;
            border-top: 1px solid var(--color-border);
        }

        .share-buttons {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .share-buttons span {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            margin-right: 4px;
        }

        .share-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--color-border);
            background: var(--color-surface);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-fast);
            color: var(--color-text-soft);
            font-size: 0.9rem;
            text-decoration: none;
        }

        .share-btn:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            box-shadow: var(--shadow);
        }

        /* ============ RELATED POSTS ============ */
        .related-section {
            padding: 0 0 60px;
            position: relative;
            z-index: 2;
        }

        .section-header {
            text-align: center;
            margin-bottom: 32px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.01em;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
            gap: 20px;
        }

        .related-card {
            background: var(--color-surface);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: var(--color-text);
        }

        .related-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }

        .related-card-image {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
            background: var(--color-surface-alt);
        }

        .related-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

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

        .related-card-body {
            padding: 16px 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .related-card-category {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .related-card-title {
            font-weight: 600;
            font-size: 1rem;
            line-height: 1.4;
            color: var(--color-text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-date {
            font-size: 0.8rem;
            color: var(--color-text-light);
            margin-top: auto;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: linear-gradient(135deg, var(--color-dark) 0%, #1a2d45 50%, #1e3a5f 100%);
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }

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

        .cta-inner h2 {
            font-size: clamp(1.5rem, 2.5vw, 1.9rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-inner p {
            color: rgba(255,255,255,0.7);
            font-size: 1.05rem;
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
            color: #fff;
            padding: 14px 36px;
            border-radius: var(--radius-xl);
            font-weight: 700;
            font-size: 1.05rem;
            text-decoration: none;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 20px rgba(232,135,10,0.35);
            border: none;
            cursor: pointer;
        }

        .btn-cta:hover {
            box-shadow: 0 8px 32px rgba(232,135,10,0.45);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--color-dark);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255,255,255,0.55);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .article-content-wrapper {
                padding: 32px 28px;
            }

            .nav-links li a {
                padding: 8px 14px;
                font-size: 0.82rem;
            }

            .related-grid {
                grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
            }

            .header-inner {
                gap: 12px;
            }

            .logo-link {
                font-size: 1rem;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }

            .nav-panel {
                border-radius: var(--radius);
                padding: 4px;
            }

            .nav-links li a {
                padding: 7px 11px;
                font-size: 0.78rem;
                border-radius: var(--radius-sm);
            }

            .nav-cta a {
                padding: 8px 16px !important;
                font-size: 0.8rem !important;
            }

            .article-banner {
                padding: 32px 0;
            }

            .article-banner h1 {
                font-size: 1.4rem;
            }

            .article-content-wrapper {
                padding: 24px 18px;
                border-radius: var(--radius);
            }

            .article-body {
                font-size: 1rem;
            }

            .article-body h2 {
                font-size: 1.25rem;
            }

            .article-actions-row {
                flex-direction: column;
                align-items: flex-start;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .cta-section {
                padding: 40px 0;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }

            .container-narrow {
                padding: 0 14px;
            }

            .header-inner {
                gap: 8px;
            }

            .logo-link {
                font-size: 0.9rem;
            }

            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.8rem;
            }

            .nav-panel {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
                max-width: 100%;
                border-radius: var(--radius-sm);
            }

            .nav-panel::-webkit-scrollbar {
                display: none;
            }

            .nav-links {
                flex-wrap: nowrap;
                gap: 1px;
            }

            .nav-links li a {
                padding: 7px 10px;
                font-size: 0.75rem;
                white-space: nowrap;
                border-radius: var(--radius-sm);
            }

            .nav-cta a {
                padding: 7px 12px !important;
                font-size: 0.75rem !important;
            }

            .article-banner {
                padding: 24px 0;
            }

            .article-banner h1 {
                font-size: 1.2rem;
            }

            .article-meta-row {
                font-size: 0.78rem;
                gap: 12px;
            }

            .article-content-wrapper {
                padding: 18px 14px;
                border-radius: var(--radius-sm);
            }

            .article-body {
                font-size: 0.95rem;
                line-height: 1.75;
            }

            .article-body h2 {
                font-size: 1.15rem;
                margin: 24px 0 10px;
            }

            .article-body h3 {
                font-size: 1.05rem;
                margin: 20px 0 8px;
            }

            .article-cover {
                border-radius: var(--radius-sm);
                margin-bottom: 20px;
            }

            .section-title {
                font-size: 1.3rem;
            }

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

            .cta-inner h2 {
                font-size: 1.3rem;
            }

            .cta-inner p {
                font-size: 0.9rem;
            }

            .btn-cta {
                padding: 12px 28px;
                font-size: 0.95rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-col h4 {
                font-size: 0.9rem;
            }

            .not-found-state {
                padding: 40px 14px;
            }

            .not-found-icon {
                font-size: 3rem;
            }

            .not-found-state h2 {
                font-size: 1.3rem;
            }
        }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --bg-primary: #080c1a;
            --bg-secondary: #0f1425;
            --bg-card: #151b30;
            --bg-card-hover: #1c2440;
            --bg-nav: rgba(15, 20, 37, 0.95);
            --bg-hero-overlay: rgba(8, 12, 26, 0.75);
            --text-primary: #f1f5f9;
            --text-secondary: #b0bdd0;
            --text-muted: #6b7d99;
            --accent-gold: #d4a843;
            --accent-gold-light: #e8c56d;
            --accent-gold-dark: #b8922e;
            --accent-warm: #e8753a;
            --accent-warm-light: #f0965e;
            --accent-blue: #4da6ff;
            --accent-blue-dark: #2d7dd2;
            --accent-green: #3ccf91;
            --border-color: #1e2a45;
            --border-light: #2a3655;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.35);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 20px rgba(212,168,67,0.2);
            --shadow-card: 0 4px 16px rgba(0,0,0,0.3);
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, sans-serif;
            --container-max: 1240px;
            --container-narrow: 960px;
            --nav-height: 72px;
        }

        /* ============ 基础 Reset ============ */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul, ol {
            list-style: none;
        }
        h1, h2, h3, h4, h5, h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
        }
        button:focus-visible, a:focus-visible, input:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

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

        /* ============ Header / 导航 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-nav);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            height: var(--nav-height);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-display);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
        }
        .header-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-warm));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #fff;
            flex-shrink: 0;
        }
        .header-logo:hover {
            color: var(--accent-gold-light);
        }
        #navMenu .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        #navMenu .nav-links li a {
            display: inline-block;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        #navMenu .nav-links li a:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,0.04);
        }
        #navMenu .nav-links li a.nav-active {
            color: var(--accent-gold);
            background: rgba(212,168,67,0.08);
            font-weight: 600;
        }
        #navMenu .nav-links li a.nav-active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent-gold);
        }
        .nav-cta a {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark)) !important;
            color: #1a0e00 !important;
            font-weight: 700 !important;
            padding: 10px 22px !important;
            border-radius: var(--radius-full) !important;
            letter-spacing: 0.03em;
            box-shadow: 0 2px 12px rgba(212,168,67,0.3);
            transition: all var(--transition-base) !important;
        }
        .nav-cta a:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(212,168,67,0.45) !important;
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold)) !important;
            color: #1a0e00 !important;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            width: 40px;
            height: 40px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            z-index: 1001;
            border-radius: var(--radius-xs);
            padding: 6px;
        }
        .mobile-menu-btn span {
            display: block;
            width: 26px;
            height: 2.5px;
            border-radius: 2px;
            background: var(--text-primary);
            transition: all var(--transition-base);
        }
        .mobile-menu-btn.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .mobile-menu-btn.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .mobile-menu-btn.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* ============ 分类 Banner Hero ============ */
        .category-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--bg-hero-overlay);
            background: linear-gradient(180deg, rgba(8,12,26,0.7) 0%, rgba(8,12,26,0.85) 40%, rgba(8,12,26,0.95) 100%);
        }
        .category-hero::after {
            content: '';
            position: absolute;
            top: -30%;
            left: 50%;
            transform: translateX(-50%);
            width: 700px;
            height: 700px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(212,168,67,0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 60px 0;
        }
        .category-badge {
            display: inline-block;
            padding: 7px 20px;
            border-radius: var(--radius-full);
            background: rgba(212,168,67,0.12);
            border: 1px solid rgba(212,168,67,0.3);
            color: var(--accent-gold-light);
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            margin-bottom: 18px;
            text-transform: uppercase;
        }
        .category-hero h1 {
            font-family: var(--font-display);
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.03em;
            margin-bottom: 14px;
            line-height: 1.2;
        }
        .category-hero h1 .gold-text {
            color: var(--accent-gold);
            position: relative;
        }
        .category-hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 620px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .category-hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
            padding: 10px 20px;
        }
        .hero-stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
            letter-spacing: 0.04em;
        }
        .hero-stat-divider {
            width: 1px;
            background: var(--border-light);
            align-self: stretch;
            margin: 8px 0;
        }

        /* ============ 板块通用 ============ */
        .section {
            padding: 70px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-label {
            display: inline-block;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            background: rgba(212,168,67,0.08);
            color: var(--accent-gold);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
            border: 1px solid rgba(212,168,67,0.2);
        }
        .section-title {
            font-family: var(--font-display);
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.02em;
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
        }

        /* ============ 内容卡片网格 ============ */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-light);
            background: var(--bg-card-hover);
        }
        .article-card-image {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-secondary);
        }
        .article-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .article-card:hover .article-card-image img {
            transform: scale(1.06);
        }
        .article-card-image .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            background: rgba(0,0,0,0.65);
            backdrop-filter: blur(6px);
            color: var(--accent-gold-light);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            z-index: 1;
        }
        .article-card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card-body h3 {
            font-size: 1.12rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
            color: #fff;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card-body h3 a:hover {
            color: var(--accent-gold-light);
        }
        .article-card-body .card-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 14px;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .article-card-meta .read-more {
            color: var(--accent-gold);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }
        .article-card-meta .read-more:hover {
            color: var(--accent-gold-light);
        }
        .article-card-meta .read-more i {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
        }
        .article-card-meta .read-more:hover i {
            transform: translateX(3px);
        }

        /* ============ 下载流程步骤 ============ */
        .steps-section {
            background: var(--bg-secondary);
            position: relative;
            overflow: hidden;
        }
        .steps-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -200px;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(212,168,67,0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .steps-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            z-index: 1;
        }
        .step-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 30px 24px;
            text-align: center;
            border: 1px solid var(--border-color);
            position: relative;
            transition: all var(--transition-base);
        }
        .step-item:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: #1a0e00;
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 16px;
            box-shadow: 0 4px 16px rgba(212,168,67,0.35);
        }
        .step-item h4 {
            font-size: 1.08rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .step-connector {
            display: none;
        }

        /* ============ 横向滚动热门推荐 ============ */
        .hot-scroll-section {
            overflow: hidden;
        }
        .hot-scroll-wrapper {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            padding: 8px 0 16px;
            margin: 0 -24px;
            padding-left: 24px;
            padding-right: 24px;
            scrollbar-width: thin;
            scrollbar-color: var(--border-light) transparent;
        }
        .hot-scroll-wrapper::-webkit-scrollbar {
            height: 6px;
        }
        .hot-scroll-wrapper::-webkit-scrollbar-track {
            background: transparent;
        }
        .hot-scroll-wrapper::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 3px;
        }
        .hot-scroll-card {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all var(--transition-base);
            cursor: pointer;
            min-width: 260px;
        }
        .hot-scroll-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-light);
        }
        .hot-scroll-card .scroll-card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-secondary);
        }
        .hot-scroll-card .scroll-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .hot-scroll-card:hover .scroll-card-img img {
            transform: scale(1.05);
        }
        .hot-scroll-card .scroll-card-info {
            padding: 16px 18px;
        }
        .hot-scroll-card .scroll-card-info h4 {
            font-size: 0.98rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: #fff;
        }
        .hot-scroll-card .scroll-card-info .scroll-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            background: rgba(232,117,58,0.15);
            color: var(--accent-warm-light);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .scroll-nav-btns {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin-top: 20px;
        }
        .scroll-nav-btn {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-fast);
            font-size: 1rem;
        }
        .scroll-nav-btn:hover {
            background: var(--bg-card-hover);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
        }

        /* ============ 亮点特色区 ============ */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 26px;
            border: 1px solid var(--border-color);
            text-align: center;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-warm));
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .feature-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 58px;
            height: 58px;
            border-radius: var(--radius-sm);
            background: rgba(212,168,67,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.5rem;
            color: var(--accent-gold);
            transition: all var(--transition-base);
        }
        .feature-card:hover .feature-icon {
            background: rgba(212,168,67,0.18);
            box-shadow: 0 0 20px rgba(212,168,67,0.2);
        }
        .feature-card h4 {
            font-size: 1.08rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--bg-secondary);
        }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--accent-gold-light);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(212,168,67,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--accent-gold);
            transition: all var(--transition-base);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(212,168,67,0.2);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ============ CTA ============ */
        .cta-section {
            text-align: center;
            padding: 80px 0;
            position: relative;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            background-attachment: fixed;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(8,12,26,0.88);
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-family: var(--font-display);
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .cta-inner p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 38px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: #1a0e00;
            font-weight: 700;
            font-size: 1.1rem;
            letter-spacing: 0.04em;
            box-shadow: 0 6px 28px rgba(212,168,67,0.4);
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
        }
        .btn-cta-large:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(212,168,67,0.55);
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold));
        }
        .btn-cta-large i {
            font-size: 0.9rem;
            transition: transform var(--transition-fast);
        }
        .btn-cta-large:hover i {
            transform: translateX(4px);
        }

        /* ============ Footer ============ */
        .site-footer {
            background: #060a16;
            border-top: 1px solid var(--border-color);
            padding: 50px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-gold-light);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ============ 动画 ============ */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(28px); }
            to { opacity: 1; transform: translateY(0); }
        }
        @keyframes shimmer {
            0% { background-position: -200% 0; }
            100% { background-position: 200% 0; }
        }
        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
            opacity: 0;
        }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        .delay-4 { animation-delay: 0.4s; }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-hero h1 {
                font-size: 2.4rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: flex;
            }
            #navMenu .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--bg-nav);
                backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding: 40px 24px;
                gap: 8px;
                transform: translateX(100%);
                transition: transform var(--transition-base);
                z-index: 999;
                overflow-y: auto;
            }
            #navMenu .nav-links.active {
                transform: translateX(0);
            }
            #navMenu .nav-links li a {
                font-size: 1.1rem;
                padding: 14px 24px;
                width: 100%;
                text-align: center;
            }
            .nav-cta a {
                width: 100%;
                text-align: center;
                margin-top: 8px;
            }
            .articles-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .category-hero {
                min-height: 340px;
                background-attachment: scroll;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero-desc {
                font-size: 1rem;
            }
            .hero-stat-number {
                font-size: 1.6rem;
            }
            .hero-stat-divider {
                display: none;
            }
            .category-hero-stats {
                gap: 20px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .cta-inner h2 {
                font-size: 1.8rem;
            }
            .cta-section {
                background-attachment: scroll;
            }
            .hot-scroll-card {
                flex: 0 0 240px;
                min-width: 220px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header-logo {
                font-size: 1.1rem;
            }
            .header-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
            .articles-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .steps-list {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .category-hero {
                min-height: 300px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-hero-desc {
                font-size: 0.9rem;
            }
            .category-hero-stats {
                gap: 12px;
            }
            .hero-stat-number {
                font-size: 1.3rem;
            }
            .hero-stat-label {
                font-size: 0.75rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .btn-cta-large {
                padding: 14px 28px;
                font-size: 1rem;
            }
            .cta-inner h2 {
                font-size: 1.5rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer-inner {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
            .hot-scroll-card {
                flex: 0 0 200px;
                min-width: 180px;
            }
            .hot-scroll-wrapper {
                gap: 14px;
                margin: 0 -16px;
                padding-left: 16px;
                padding-right: 16px;
            }
        }