/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #1565c0;
            --primary-dark: #0d47a1;
            --primary-light: #42a5f5;
            --primary-bg: #e3f2fd;
            --secondary: #ff8f00;
            --secondary-light: #ffb300;
            --secondary-bg: #fff8e1;
            --bg: #f5f7fa;
            --bg-white: #ffffff;
            --bg-dark: #0d1b2a;
            --text: #1a1a2e;
            --text-light: #6c7a89;
            --text-white: #ffffff;
            --border: #dee2e6;
            --border-light: #f0f0f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 4px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
        }
        .site-logo i {
            font-size: 1.8rem;
            color: var(--secondary);
        }
        .site-logo span {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .site-logo:hover {
            color: var(--primary-dark);
            transform: scale(1.01);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-list .nav-item {
            margin: 0;
        }
        .nav-list .nav-link {
            display: block;
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            transition: var(--transition);
            position: relative;
        }
        .nav-list .nav-link:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .nav-list .nav-link.active {
            background: var(--primary);
            color: var(--text-white);
            box-shadow: 0 4px 12px rgba(21, 101, 192, 0.3);
        }
        .nav-list .nav-link.active:hover {
            background: var(--primary-dark);
            color: var(--text-white);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            padding: 8px 12px;
            border-radius: var(--radius-xs);
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        /* ===== Hero ===== */
        .hero {
            padding: 100px 0 80px;
            background: linear-gradient(135deg, #e8f0fe 0%, #d4e4f7 50%, #e8f0fe 100%);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(21, 101, 192, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 143, 0, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
        }
        .hero-content {
            flex: 1 1 55%;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--secondary-bg);
            color: var(--secondary);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(255, 143, 0, 0.2);
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--primary-dark);
            letter-spacing: -1px;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-light);
            max-width: 540px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-primary-custom {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--text-white);
            box-shadow: 0 8px 24px rgba(21, 101, 192, 0.35);
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(21, 101, 192, 0.45);
            color: var(--text-white);
        }
        .btn-secondary-custom {
            background: var(--bg-white);
            color: var(--primary);
            border: 2px solid var(--border);
            box-shadow: var(--shadow);
        }
        .btn-secondary-custom:hover {
            border-color: var(--primary);
            color: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .hero-visual {
            flex: 1 1 40%;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 32px 28px;
            box-shadow: var(--shadow-lg);
            width: 100%;
            max-width: 380px;
            border: 1px solid rgba(255, 255, 255, 0.8);
        }
        .hero-card-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: var(--primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .hero-card h4 {
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .hero-card p {
            color: var(--text-light);
            font-size: 0.95rem;
            margin-bottom: 16px;
        }
        .hero-card .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .hero-card .tag {
            background: var(--bg);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-light);
            border: 1px solid var(--border-light);
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-header .subtitle {
            display: inline-block;
            background: var(--primary-bg);
            color: var(--primary);
            padding: 4px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .section-header p {
            color: var(--text-light);
            font-size: 1.05rem;
            max-width: 640px;
            margin: 0 auto;
        }

        /* ===== Features ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 36px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .feature-icon {
            width: 72px;
            height: 72px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            margin: 0 auto 18px;
            color: var(--text-white);
        }
        .feature-icon.blue {
            background: linear-gradient(135deg, #1565c0, #42a5f5);
        }
        .feature-icon.orange {
            background: linear-gradient(135deg, #ff8f00, #ffb300);
        }
        .feature-icon.teal {
            background: linear-gradient(135deg, #00897b, #26a69a);
        }
        .feature-card h4 {
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 12px;
            color: var(--text);
        }
        .feature-card p {
            color: var(--text-light);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* ===== Category Entry ===== */
        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .category-card-body {
            padding: 28px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card-body .cat-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--secondary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--secondary);
            margin-bottom: 16px;
        }
        .category-card-body h4 {
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .category-card-body p {
            color: var(--text-light);
            font-size: 0.95rem;
            flex: 1;
            margin-bottom: 16px;
        }
        .category-card-body .btn-outline {
            align-self: flex-start;
            padding: 8px 24px;
            border-radius: 50px;
            border: 2px solid var(--primary);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            background: transparent;
            transition: var(--transition);
            text-decoration: none;
        }
        .category-card-body .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
        }

        /* ===== Latest Posts ===== */
        .posts-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .post-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            padding: 24px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .post-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .post-item .post-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .post-item .post-meta .badge-custom {
            background: var(--primary-bg);
            color: var(--primary);
            padding: 2px 14px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.75rem;
        }
        .post-item .post-meta .badge-custom.orange {
            background: var(--secondary-bg);
            color: var(--secondary);
        }
        .post-item h5 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .post-item h5 a {
            color: var(--text);
        }
        .post-item h5 a:hover {
            color: var(--primary);
        }
        .post-item p {
            color: var(--text-light);
            font-size: 0.92rem;
            margin-bottom: 0;
            flex: 1;
        }
        .post-item .post-footer {
            margin-top: 14px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .post-item .post-footer .post-date {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .post-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            color: var(--text-light);
        }
        .post-empty i {
            font-size: 3rem;
            color: var(--border);
            margin-bottom: 16px;
            display: block;
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            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);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .stat-item .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            color: var(--text-light);
            font-size: 0.95rem;
            font-weight: 500;
            margin-top: 8px;
        }

        /* ===== Steps / Process ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 48px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-light), var(--secondary-light));
            z-index: 0;
        }
        .step-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            position: relative;
            z-index: 1;
            transition: var(--transition);
        }
        .step-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            margin: 0 auto 16px;
            color: var(--text-white);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 4px 16px rgba(21, 101, 192, 0.3);
        }
        .step-item h5 {
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-item p {
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            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 {
            padding: 20px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            font-size: 1.2rem;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 28px 20px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), #0d1b2a);
            padding: 80px 0;
            text-align: center;
            color: var(--text-white);
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.85;
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 16px 44px;
            border-radius: 50px;
            background: var(--secondary);
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.1rem;
            border: none;
            transition: var(--transition);
            text-decoration: none;
            box-shadow: 0 8px 28px rgba(255, 143, 0, 0.4);
        }
        .cta-section .btn-cta:hover {
            background: var(--secondary-light);
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(255, 143, 0, 0.5);
            color: var(--text-white);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .site-logo {
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .footer-brand .site-logo span {
            background: linear-gradient(135deg, #fff, #e0e0e0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer-brand p {
            font-size: 0.9rem;
            max-width: 320px;
        }
        .footer-col h5 {
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--secondary-light);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.6rem;
            }
            .hero .container {
                flex-direction: column;
                text-align: center;
            }
            .hero-desc {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-visual {
                width: 100%;
                max-width: 480px;
                margin: 0 auto;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .posts-list {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 20px;
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
                border-bottom: 1px solid var(--border-light);
                gap: 4px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list .nav-link {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-xs);
            }
            .nav-toggle {
                display: block;
            }
            .hero {
                padding: 60px 0 50px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .section {
                padding: 50px 0;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .posts-list {
                grid-template-columns: 1fr;
            }
            .hero-card {
                padding: 24px 20px;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .cta-section .btn-cta {
                padding: 14px 32px;
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .stat-number {
                font-size: 1.6rem;
            }
            .btn-custom {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .post-item {
                padding: 18px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: article */
:root {
            --primary: #e8491d;
            --primary-dark: #c73d17;
            --primary-light: #f55c30;
            --secondary: #1a2a3a;
            --accent: #f5a623;
            --bg-light: #f8f9fa;
            --bg-dark: #0f1a2b;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8a8aaa;
            --border-color: #e8e8f0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow: 0 6px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
            --transition: 0.25s ease;
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
        }

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

        body {
            font-family: var(--font-sans);
            background: #ffffff;
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; }

        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 20px; width: 100%; }

        /* ===== Header ===== */
        .site-header {
            background: #ffffff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0,0,0,0.04);
            backdrop-filter: blur(8px);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            flex-shrink: 0;
        }
        .site-logo i { font-size: 1.5rem; }
        .site-logo span { color: var(--text-primary); }
        .site-logo:hover span { color: var(--primary); }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover { background: var(--bg-light); }

        .nav-list {
            display: flex;
            list-style: none;
            gap: 4px;
            align-items: center;
        }
        .nav-item { margin: 0; }
        .nav-link {
            display: block;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
        }
        .nav-link:hover { color: var(--primary); background: rgba(232,73,29,0.06); }
        .nav-link.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 12px rgba(232,73,29,0.3);
        }
        .nav-link.active:hover { color: #fff; background: var(--primary-dark); }

        /* ===== Article Hero ===== */
        .article-hero {
            background: linear-gradient(135deg, #0f1a2b 0%, #1a2a3a 50%, #2a3a4a 100%);
            padding: 60px 0 50px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .article-hero::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(232,73,29,0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .article-hero .container { position: relative; z-index: 1; }
        .article-hero .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.9rem;
            margin-bottom: 20px;
            color: rgba(255,255,255,0.6);
        }
        .article-hero .breadcrumb a { color: rgba(255,255,255,0.7); }
        .article-hero .breadcrumb a:hover { color: #fff; }
        .article-hero .breadcrumb .sep { color: rgba(255,255,255,0.4); }
        .article-hero .breadcrumb .current { color: rgba(255,255,255,0.9); }
        .article-hero h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            max-width: 900px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.95rem;
            color: rgba(255,255,255,0.7);
        }
        .article-meta i { margin-right: 6px; }
        .article-meta .badge-cat {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* ===== Article Main ===== */
        .article-main {
            padding: 60px 0 80px;
            background: #ffffff;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 40px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid var(--primary);
            display: inline-block;
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin: 32px 0 12px;
        }
        .article-body p { margin-bottom: 20px; }
        .article-body ul, .article-body ol { margin-bottom: 20px; padding-left: 24px; }
        .article-body li { margin-bottom: 8px; }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 24px 0;
            background: var(--bg-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body img {
            border-radius: var(--radius);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body a { color: var(--primary); font-weight: 500; }
        .article-body a:hover { text-decoration: underline; }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }
        .article-tags .tag {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 20px;
            background: var(--bg-light);
            color: var(--text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
            transition: all var(--transition);
        }
        .article-tags .tag:hover { background: var(--primary); color: #fff; }

        /* ===== Sidebar ===== */
        .article-sidebar .sidebar-card {
            background: var(--bg-light);
            border-radius: var(--radius);
            padding: 28px 24px;
            margin-bottom: 24px;
            border: 1px solid var(--border-color);
        }
        .sidebar-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
            padding-left: 16px;
        }
        .sidebar-card h4::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }
        .sidebar-list { list-style: none; padding: 0; }
        .sidebar-list li { padding: 10px 0; border-bottom: 1px solid rgba(0,0,0,0.05); }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list a {
            color: var(--text-secondary);
            font-weight: 500;
            transition: color var(--transition);
            display: block;
        }
        .sidebar-list a:hover { color: var(--primary); padding-left: 4px; }
        .sidebar-list .meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            padding: 32px 24px;
            border-radius: var(--radius);
            text-align: center;
        }
        .sidebar-cta h4 { font-size: 1.15rem; font-weight: 700; margin-bottom: 12px; }
        .sidebar-cta h4::before { display: none; }
        .sidebar-cta p { font-size: 0.9rem; opacity: 0.9; margin-bottom: 20px; }
        .sidebar-cta .btn {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            padding: 10px 28px;
            border-radius: 30px;
            border: none;
            transition: all var(--transition);
        }
        .sidebar-cta .btn:hover { background: var(--accent); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

        /* ===== Related Section ===== */
        .related-section {
            background: var(--bg-light);
            padding: 60px 0;
        }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 32px;
            text-align: center;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .related-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
        .related-card .cat-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(232,73,29,0.08);
            padding: 2px 12px;
            border-radius: 12px;
            margin-bottom: 10px;
        }
        .related-card h5 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
        .related-card h5 a { color: var(--text-primary); }
        .related-card h5 a:hover { color: var(--primary); }
        .related-card p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 0; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .site-logo { margin-bottom: 16px; }
        .footer-brand .site-logo span { color: #fff; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 360px; }
        .footer-col h5 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h5::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .footer-col ul { list-style: none; padding: 0; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul a { color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: color var(--transition); }
        .footer-col ul a:hover { color: var(--primary); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom a { color: rgba(255,255,255,0.7); }
        .footer-bottom a:hover { color: var(--primary); }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg-light);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
        }
        .not-found-box i { font-size: 3rem; color: var(--text-muted); margin-bottom: 20px; }
        .not-found-box h2 { font-size: 1.6rem; margin-bottom: 12px; }
        .not-found-box p { color: var(--text-secondary); margin-bottom: 24px; }
        .not-found-box .btn { background: var(--primary); color: #fff; padding: 10px 32px; border-radius: 30px; border: none; font-weight: 600; transition: all var(--transition); }
        .not-found-box .btn:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,73,29,0.3); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; gap: 32px; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
            .related-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .site-header .container { height: 60px; }
            .nav-toggle { display: block; }
            .nav-list {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 20px;
                box-shadow: 0 12px 32px rgba(0,0,0,0.1);
                border-bottom: 2px solid var(--primary);
                gap: 2px;
            }
            .nav-list.open { display: flex; }
            .nav-link { padding: 12px 16px; width: 100%; }

            .article-hero { padding: 40px 0 36px; }
            .article-hero h1 { font-size: 1.5rem; }

            .article-main { padding: 40px 0 60px; }
            .article-body { font-size: 1rem; }
            .article-body h2 { font-size: 1.3rem; }
            .article-sidebar { grid-template-columns: 1fr; }

            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .site-logo { font-size: 1.1rem; }
            .site-logo i { font-size: 1.2rem; }
            .article-hero h1 { font-size: 1.25rem; }
            .article-meta { gap: 12px; font-size: 0.85rem; flex-wrap: wrap; }
            .footer-grid { grid-template-columns: 1fr; }
            .sidebar-card { padding: 20px 16px; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6C3CF5;
            --primary-dark: #5228D9;
            --primary-light: #8B6FF7;
            --primary-gradient: linear-gradient(135deg, #6C3CF5 0%, #A855F7 100%);
            --secondary: #F59E0B;
            --secondary-light: #FCD34D;
            --accent: #EC4899;
            --bg-body: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-light: #F1F5F9;
            --bg-dark: #0F172A;
            --text-primary: #0F172A;
            --text-secondary: #475569;
            --text-muted: #94A3B8;
            --text-white: #FFFFFF;
            --border-color: #E2E8F0;
            --border-light: rgba(108, 60, 245, 0.15);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.12);
            --shadow-primary: 0 8px 24px rgba(108, 60, 245, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础重置 ===== */
        *,
        *::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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            padding-top: var(--header-height);
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--primary-dark);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: 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 {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 吸顶导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-primary);
            font-weight: 800;
            font-size: 22px;
            letter-spacing: -0.5px;
            transition: var(--transition);
        }

        .site-logo i {
            font-size: 26px;
            color: var(--primary);
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .site-logo span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .site-logo:hover {
            opacity: 0.85;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            font-size: 24px;
            color: var(--text-primary);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: var(--bg-light);
            color: var(--primary);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-item .nav-link {
            display: block;
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }

        .nav-item .nav-link:hover {
            color: var(--primary);
            background: var(--border-light);
        }

        .nav-item .nav-link.active {
            color: var(--text-white);
            background: var(--primary-gradient);
            box-shadow: var(--shadow-primary);
        }

        .nav-item .nav-link.active:hover {
            color: var(--text-white);
            background: var(--primary-gradient);
            opacity: 0.92;
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }

            .nav-list {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px;
                gap: 8px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                box-shadow: var(--shadow-lg);
            }

            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .nav-item .nav-link {
                padding: 12px 18px;
                font-size: 16px;
                width: 100%;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .site-logo {
                font-size: 18px;
            }

            .site-logo i {
                font-size: 20px;
            }
        }

        /* ===== 页面标题区 ===== */
        .page-hero {
            background: var(--primary-gradient);
            padding: 80px 0 72px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.06'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            opacity: 0.5;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
            letter-spacing: -1px;
        }

        .page-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 6px 18px;
            border-radius: 100px;
            color: var(--text-white);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .page-hero .hero-badge i {
            font-size: 14px;
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 56px 0 48px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .page-hero p {
                font-size: 16px;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 26px;
            }
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            padding: 16px 0;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
        }

        .breadcrumb-wrap .breadcrumb {
            margin: 0;
            background: transparent;
            padding: 0;
        }

        .breadcrumb-wrap .breadcrumb-item {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
        }

        .breadcrumb-wrap .breadcrumb-item a {
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .breadcrumb-wrap .breadcrumb-item a:hover {
            color: var(--primary);
        }

        .breadcrumb-wrap .breadcrumb-item.active {
            color: var(--primary);
            font-weight: 600;
        }

        .breadcrumb-wrap .breadcrumb-item+.breadcrumb-item::before {
            color: var(--text-muted);
            content: '/';
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .section-header p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-header .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--border-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 100px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }

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

            .section-header h2 {
                font-size: 26px;
            }

            .section-header p {
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding: 40px 0;
            }

            .section-header h2 {
                font-size: 22px;
            }
        }

        /* ===== 攻略分类卡片 ===== */
        .guide-categories {
            background: var(--bg-white);
        }

        .cat-card {
            background: var(--bg-body);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .cat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary-gradient);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.4s ease;
        }

        .cat-card:hover::before {
            transform: scaleX(1);
        }

        .cat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .cat-card .cat-icon {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-sm);
            background: var(--primary-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 28px;
            color: var(--text-white);
            box-shadow: 0 8px 24px rgba(108, 60, 245, 0.25);
            transition: var(--transition);
        }

        .cat-card:hover .cat-icon {
            transform: scale(1.05) rotate(-3deg);
        }

        .cat-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .cat-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .cat-card .cat-count {
            display: inline-block;
            margin-top: 14px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--border-light);
            padding: 2px 14px;
            border-radius: 100px;
        }

        @media (max-width: 768px) {
            .cat-card {
                padding: 24px 16px;
            }

            .cat-card .cat-icon {
                width: 52px;
                height: 52px;
                font-size: 22px;
            }

            .cat-card h3 {
                font-size: 16px;
            }
        }

        /* ===== 攻略列表 ===== */
        .guide-list-section {
            background: var(--bg-body);
        }

        .guide-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .guide-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 48px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .guide-card:hover .card-img {
            transform: scale(1.02);
        }

        .guide-card .card-body {
            padding: 24px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .guide-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }

        .guide-card .card-tags .badge-tag {
            font-size: 12px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 100px;
            background: var(--border-light);
            color: var(--primary);
            transition: var(--transition);
        }

        .guide-card .card-tags .badge-tag.hot {
            background: #FEF3C7;
            color: #D97706;
        }

        .guide-card .card-tags .badge-tag.new {
            background: #D1FAE5;
            color: #059669;
        }

        .guide-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .guide-card h3 a {
            color: inherit;
            transition: var(--transition);
        }

        .guide-card h3 a:hover {
            color: var(--primary);
        }

        .guide-card .card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .guide-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
        }

        .guide-card .card-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .guide-card .card-meta i {
            font-size: 14px;
        }

        @media (max-width: 768px) {
            .guide-card .card-img {
                height: 160px;
                font-size: 36px;
            }

            .guide-card .card-body {
                padding: 18px 16px 16px;
            }

            .guide-card h3 {
                font-size: 16px;
            }
        }

        /* ===== 热门攻略排行 ===== */
        .ranking-section {
            background: var(--bg-white);
        }

        .rank-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 18px 20px;
            border-radius: var(--radius-sm);
            background: var(--bg-body);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            margin-bottom: 12px;
        }

        .rank-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }

        .rank-item .rank-num {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            background: var(--border-light);
            color: var(--primary);
            transition: var(--transition);
        }

        .rank-item:nth-child(1) .rank-num {
            background: var(--primary-gradient);
            color: var(--text-white);
            box-shadow: var(--shadow-primary);
        }

        .rank-item:nth-child(2) .rank-num {
            background: var(--primary-gradient);
            color: var(--text-white);
            box-shadow: var(--shadow-primary);
        }

        .rank-item:nth-child(3) .rank-num {
            background: var(--primary-gradient);
            color: var(--text-white);
            box-shadow: var(--shadow-primary);
        }

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

        .rank-item .rank-info h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-primary);
        }

        .rank-item .rank-info p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.5;
        }

        .rank-item .rank-stats {
            flex-shrink: 0;
            text-align: right;
            font-size: 13px;
            color: var(--text-muted);
        }

        .rank-item .rank-stats i {
            color: var(--secondary);
            margin-right: 4px;
        }

        @media (max-width: 768px) {
            .rank-item {
                padding: 14px 16px;
                gap: 14px;
                flex-wrap: wrap;
            }

            .rank-item .rank-num {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }

            .rank-item .rank-info h4 {
                font-size: 15px;
            }

            .rank-item .rank-stats {
                width: 100%;
                text-align: left;
                padding-left: 48px;
            }
        }

        /* ===== 新手教程专区 ===== */
        .tutorial-section {
            background: var(--bg-light);
        }

        .tutorial-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            position: relative;
        }

        .tutorial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .tutorial-card .tut-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 16px;
            transition: var(--transition);
        }

        .tutorial-card:hover .tut-icon {
            background: var(--primary-gradient);
            color: var(--text-white);
            box-shadow: var(--shadow-primary);
        }

        .tutorial-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .tutorial-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .tutorial-card .tut-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .tutorial-card .tut-link:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        @media (max-width: 768px) {
            .tutorial-card {
                padding: 20px 18px;
            }

            .tutorial-card h3 {
                font-size: 16px;
            }
        }

        /* ===== 版本更新时间线 ===== */
        .timeline-section {
            background: var(--bg-white);
        }

        .timeline {
            position: relative;
            padding-left: 40px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 15px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border-color);
        }

        .timeline-item {
            position: relative;
            padding-bottom: 36px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary-gradient);
            border: 3px solid var(--bg-white);
            box-shadow: 0 0 0 3px rgba(108, 60, 245, 0.2);
            z-index: 2;
        }

        .timeline-item .tl-date {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 4px;
        }

        .timeline-item h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .timeline-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .timeline-item .tl-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .timeline-item .tl-tags span {
            font-size: 12px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 100px;
            background: var(--border-light);
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .timeline {
                padding-left: 32px;
            }

            .timeline::before {
                left: 11px;
            }

            .timeline-item::before {
                left: -22px;
                width: 10px;
                height: 10px;
            }

            .timeline-item h4 {
                font-size: 16px;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-light);
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary-light);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            transition: var(--transition);
            background: transparent;
            width: 100%;
            text-align: left;
            border: none;
        }

        .faq-item .faq-question:hover {
            color: var(--primary);
        }

        .faq-item .faq-question i {
            font-size: 16px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .faq-item .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-item .faq-answer {
            padding: 0 22px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .faq-item .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }

            .faq-item .faq-answer {
                padding: 0 16px 14px;
                font-size: 14px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary-gradient);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M50 50v-4h-4v4h-4v4h4v4h4v-4h4v-4h-4zm0-40V6h-4v4h-4v4h4v4h4v-4h4v-4h-4zM10 50v-4H6v4H2v4h4v4h4v-4h4v-4H10zM10 10V6H6v4H2v4h4v4h4v-4h4v-4H10z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            opacity: 0.4;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--text-white);
            color: var(--primary);
            padding: 14px 36px;
            border-radius: 100px;
            font-size: 17px;
            font-weight: 700;
            border: none;
            transition: var(--transition);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
        }

        .cta-section .btn-cta:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
            color: var(--primary-dark);
        }

        .cta-section .btn-cta i {
            font-size: 18px;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }

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

            .cta-section p {
                font-size: 16px;
            }

            .cta-section .btn-cta {
                padding: 12px 28px;
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .cta-section h2 {
                font-size: 22px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer .footer-brand .site-logo {
            color: var(--text-white);
            margin-bottom: 14px;
            display: inline-flex;
        }

        .site-footer .footer-brand .site-logo span {
            -webkit-text-fill-color: var(--text-white);
            background: none;
        }

        .site-footer .footer-brand .site-logo i {
            -webkit-text-fill-color: var(--primary-light);
            background: none;
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }

        .site-footer .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .site-footer .footer-col ul li {
            margin-bottom: 10px;
        }

        .site-footer .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }

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

        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 8px;
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }

        .site-footer .footer-bottom a:hover {
            color: var(--primary-light);
        }

        @media (max-width: 992px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .site-footer {
                padding: 40px 0 0;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .site-footer .footer-brand p {
                max-width: 100%;
            }

            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .site-footer .footer-col h5 {
                font-size: 14px;
            }

            .site-footer .footer-col ul li a {
                font-size: 13px;
            }
        }

        /* ===== 按钮通用 ===== */
        .btn-outline-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border: 2px solid var(--primary);
            border-radius: 100px;
            font-weight: 600;
            font-size: 15px;
            color: var(--primary);
            background: transparent;
            transition: var(--transition);
        }

        .btn-outline-primary-custom:hover {
            background: var(--primary);
            color: var(--text-white);
            box-shadow: var(--shadow-primary);
            transform: translateY(-2px);
        }

        /* ===== 标签云 ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
        }

        .tag-cloud .tag-item {
            display: inline-block;
            padding: 6px 18px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 100px;
            transition: var(--transition);
        }

        .tag-cloud .tag-item:hover {
            color: var(--primary);
            border-color: var(--primary-light);
            background: var(--border-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        /* ===== 分页 ===== */
        .pagination-custom {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: 40px;
        }

        .pagination-custom .page-link {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            color: var(--text-secondary);
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .pagination-custom .page-link:hover {
            color: var(--primary);
            border-color: var(--primary-light);
            background: var(--border-light);
        }

        .pagination-custom .page-link.active {
            background: var(--primary-gradient);
            color: var(--text-white);
            border-color: transparent;
            box-shadow: var(--shadow-primary);
        }

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

        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 辅助 ===== */
        .text-gradient {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .bg-soft-primary {
            background: var(--border-light);
        }

        .rounded-pill-custom {
            border-radius: 100px;
        }

        .gap-2 {
            gap: 8px;
        }

        .gap-3 {
            gap: 16px;
        }

        .gap-4 {
            gap: 24px;
        }

        .mb-1 {
            margin-bottom: 4px;
        }

        .mb-2 {
            margin-bottom: 8px;
        }

        .mb-3 {
            margin-bottom: 16px;
        }

        .mb-4 {
            margin-bottom: 24px;
        }

        .mb-5 {
            margin-bottom: 40px;
        }

        .mt-3 {
            margin-top: 16px;
        }

        .mt-4 {
            margin-top: 24px;
        }

        .mt-5 {
            margin-top: 40px;
        }

        .text-center {
            text-align: center;
        }

        .text-muted {
            color: var(--text-muted);
        }

        @media (max-width: 576px) {
            .container {
                padding: 0 12px;
            }
        }