/* roulang page: index */
:root {
            --color-primary: #1b3d5f;
            --color-primary-dark: #0f2840;
            --color-primary-light: #2a5a8a;
            --color-accent: #e8a817;
            --color-accent-hover: #c98f14;
            --color-accent-light: #fdf3d6;
            --color-bg: #f7f8fa;
            --color-white: #ffffff;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-light: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --color-danger: #ef4444;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1), 0 4px 8px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --nav-height-top: 56px;
            --nav-height-bottom: 48px;
            --nav-total-height: 104px;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

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

        input {
            font-family: inherit;
            outline: none;
        }

        ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        h1, h2, h3, h4, h5, h6 {
            margin: 0;
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-text);
        }

        p {
            margin: 0 0 1rem;
        }

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

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            box-shadow: var(--shadow-md);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-lg);
        }

        /* Top nav row */
        .nav-top {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height-top);
        }

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

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .nav-logo:hover {
            color: var(--color-primary-light);
        }

        .nav-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 900;
            flex-shrink: 0;
        }

        .nav-top-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .nav-search-wrap {
            position: relative;
            display: flex;
            align-items: center;
        }

        .nav-search-input {
            padding: 10px 42px 10px 16px;
            border: 2px solid var(--color-border);
            border-radius: 50px;
            font-size: 0.9rem;
            width: 220px;
            background: var(--color-bg);
            color: var(--color-text);
            transition: all var(--transition-normal);
        }

        .nav-search-input:focus {
            border-color: var(--color-primary-light);
            background: var(--color-white);
            box-shadow: 0 0 0 4px rgba(27, 61, 95, 0.08);
            width: 260px;
        }

        .nav-search-btn {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--color-primary);
            color: #fff;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            transition: all var(--transition-fast);
            border: none;
            cursor: pointer;
        }

        .nav-search-btn:hover {
            background: var(--color-accent);
            transform: translateY(-50%) scale(1.05);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            border-radius: 50px;
            white-space: nowrap;
            transition: all var(--transition-normal);
            text-decoration: none;
            box-shadow: var(--shadow-sm);
        }

        .nav-cta-btn:hover {
            background: var(--color-accent-hover);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            color: #fff;
        }

        .nav-mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            padding: 8px;
            cursor: pointer;
            line-height: 1;
        }

        /* Bottom nav row - Channel Tabs */
        .nav-bottom {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height-bottom);
        }

        .nav-bottom-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            overflow-x: auto;
            white-space: nowrap;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .nav-bottom-inner::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--color-text-secondary);
            border-radius: 50px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            text-decoration: none;
            position: relative;
            cursor: pointer;
        }

        .nav-tab:hover {
            color: var(--color-primary);
            background: rgba(27, 61, 95, 0.04);
        }

        .nav-tab.active {
            color: #fff;
            background: var(--color-primary);
            font-weight: 700;
            box-shadow: var(--shadow-sm);
        }

        .nav-tab.active:hover {
            background: var(--color-primary-dark);
            color: #fff;
        }

        .nav-tab-icon {
            font-size: 0.85rem;
        }

        /* Mobile nav panel */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--color-white);
            z-index: 9999;
            padding: 24px;
            overflow-y: auto;
            transform: translateX(-100%);
            transition: transform var(--transition-normal);
        }

        .mobile-nav-panel.open {
            transform: translateX(0);
        }

        .mobile-nav-close {
            position: absolute;
            top: 18px;
            right: 18px;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--color-text);
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: background var(--transition-fast);
        }

        .mobile-nav-close:hover {
            background: var(--color-bg);
        }

        .mobile-nav-list {
            margin-top: 60px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 18px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            text-decoration: none;
        }

        .mobile-nav-link:hover,
        .mobile-nav-link.active {
            background: var(--color-primary);
            color: #fff;
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(15, 40, 64, 0.88) 0%, rgba(27, 61, 95, 0.82) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-blend-mode: overlay;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232, 168, 23, 0.15) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            padding: 60px 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 16px;
            background: rgba(232, 168, 23, 0.2);
            color: var(--color-accent);
            font-size: 0.85rem;
            font-weight: 700;
            border-radius: 50px;
            border: 1px solid rgba(232, 168, 23, 0.3);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 900;
            color: #ffffff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        .hero-title-highlight {
            color: var(--color-accent);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 560px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 700;
            border-radius: 50px;
            transition: all var(--transition-normal);
            text-decoration: none;
            cursor: pointer;
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

        .btn-primary {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(232, 168, 23, 0.35);
        }

        .btn-primary:hover {
            background: var(--color-accent-hover);
            box-shadow: 0 8px 24px rgba(232, 168, 23, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 9px 18px;
            font-size: 0.88rem;
        }

        .btn-lg {
            padding: 16px 34px;
            font-size: 1.1rem;
        }

        .hero-stats-row {
            display: flex;
            gap: 36px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .hero-stat-number {
            font-size: 1.8rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.5px;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 70px 0;
        }

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

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

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--color-accent);
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========== FEATURE CARDS ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

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

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

        .feature-card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: var(--color-accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--color-accent);
            margin-bottom: 18px;
            transition: all var(--transition-normal);
        }

        .feature-card:hover .feature-card-icon {
            background: var(--color-accent);
            color: #fff;
            transform: scale(1.05);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-primary);
        }

        .feature-card p {
            font-size: 0.93rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== CATEGORY ENTRY CARD ========== */
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

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

        .category-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .category-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

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

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

        .category-card-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 40, 64, 0.6) 0%, transparent 50%);
        }

        .category-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .category-card-tag {
            display: inline-block;
            padding: 5px 12px;
            background: var(--color-accent-light);
            color: var(--color-accent);
            font-size: 0.78rem;
            font-weight: 700;
            border-radius: 50px;
            align-self: flex-start;
        }

        .category-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-primary);
        }

        .category-card p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
            margin: 0;
        }

        .category-card-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--color-primary);
            margin-top: 4px;
            transition: gap var(--transition-fast);
        }

        .category-card:hover .category-card-arrow {
            gap: 10px;
            color: var(--color-accent);
        }

        /* ========== CMS LIST ========== */
        .cms-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .cms-list-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            text-decoration: none;
        }

        .cms-list-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--color-primary-light);
        }

        .cms-list-item-thumb {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
        }

        .cms-list-item-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .cms-list-item-cat {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-accent);
            margin-bottom: 4px;
        }

        .cms-list-item-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-list-item-date {
            font-size: 0.8rem;
            color: var(--color-text-light);
        }

        .cms-empty {
            text-align: center;
            padding: 48px 24px;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            color: var(--color-text-secondary);
            font-size: 1rem;
        }

        /* ========== STEPS / PROCESS ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            position: relative;
        }

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

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-size: 1.2rem;
            font-weight: 900;
            margin-bottom: 14px;
            transition: all var(--transition-normal);
        }

        .step-card:hover .step-number {
            background: var(--color-accent);
            transform: scale(1.1);
        }

        .step-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .step-card p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
            margin: 0;
        }

        /* ========== DATA CARDS ========== */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }

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

        .data-card-icon {
            font-size: 2rem;
            color: var(--color-accent);
            margin-bottom: 10px;
        }

        .data-card-number {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--color-primary);
            letter-spacing: -0.5px;
        }

        .data-card-label {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            margin-top: 4px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
        }

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

        .faq-question {
            width: 100%;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: none;
            border: none;
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            cursor: pointer;
            text-align: left;
            transition: all var(--transition-fast);
        }

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

        .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-normal);
            font-size: 0.9rem;
            color: var(--color-text-light);
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--color-accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 0.93rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(232, 168, 23, 0.2) 0%, transparent 50%);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 60px 24px;
        }

        .cta-content h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-content p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 28px;
            max-width: 540px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-content .btn-primary {
            font-size: 1.05rem;
            padding: 15px 34px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-brand-name {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
        }

        .footer-brand-desc {
            font-size: 0.9rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            text-decoration: none;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

            .steps-grid,
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .cms-list {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .hero-title {
                font-size: 2.4rem;
            }

            .hero-section {
                min-height: 480px;
            }

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

            .category-entry-grid {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }
        }

        @media (max-width: 768px) {
            .nav-search-wrap {
                display: none;
            }

            .nav-cta-btn {
                padding: 8px 16px;
                font-size: 0.82rem;
            }

            .nav-logo {
                font-size: 1.15rem;
            }

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

            .nav-mobile-toggle {
                display: block;
            }

            .nav-bottom {
                display: none;
            }

            .mobile-nav-panel {
                display: block;
            }

            .mobile-nav-panel .nav-bottom-inner {
                display: flex;
                flex-direction: column;
                gap: 4px;
                padding: 0;
                overflow-x: visible;
            }

            .mobile-nav-panel .nav-tab {
                border-radius: var(--radius-md);
                padding: 12px 16px;
            }

            .hero-title {
                font-size: 1.9rem;
            }

            .hero-subtitle {
                font-size: 1rem;
            }

            .hero-section {
                min-height: 420px;
            }

            .hero-stats-row {
                gap: 20px;
            }

            .hero-stat-number {
                font-size: 1.4rem;
            }

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

            .category-entry-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .steps-grid,
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .cms-list {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 1.6rem;
            }

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

            .cta-content h2 {
                font-size: 1.5rem;
            }

            .btn {
                padding: 12px 22px;
                font-size: 0.9rem;
            }

            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }

            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .nav-top-inner {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }

            .hero-section {
                min-height: 360px;
            }

            .hero-content {
                padding: 36px 0;
            }

            .hero-stats-row {
                gap: 14px;
                flex-direction: column;
            }

            .steps-grid,
            .data-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .section {
                padding: 36px 0;
            }

            .section-title {
                font-size: 1.35rem;
            }

            .section-header {
                margin-bottom: 28px;
            }

            .container {
                padding: 0 16px;
            }

            .feature-card {
                padding: 22px 18px;
            }

            .cms-list-item {
                flex-direction: column;
                gap: 10px;
            }

            .cms-list-item-thumb {
                width: 100%;
                height: 140px;
            }

            .faq-question {
                font-size: 0.9rem;
                padding: 16px 18px;
            }

            .faq-answer-inner {
                padding: 0 18px 16px;
                font-size: 0.85rem;
            }

            .nav-top-inner {
                padding: 0 12px;
            }

            .nav-cta-btn {
                font-size: 0.78rem;
                padding: 7px 14px;
            }
        }

        @media (min-width: 769px) {
            .mobile-nav-panel {
                display: none !important;
            }
        }

/* roulang page: article */
:root {
            --primary: #1a5fdc;
            --primary-dark: #1349b0;
            --primary-light: #e8f0fe;
            --accent: #f0810f;
            --accent-light: #fff3e6;
            --bg: #f7f8fb;
            --bg-white: #ffffff;
            --text: #1d2130;
            --text-secondary: #5a6070;
            --text-muted: #8891a3;
            --border: #e2e6ed;
            --border-light: #eef1f6;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
            --shadow: 0 2px 12px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition: 0.2s ease;
            --max-width: 1240px;
        }

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

        html { scroll-behavior: smooth; font-size: 16px; }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a { text-decoration: none; color: var(--primary); transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: var(--font-sans); }
        ul { list-style: none; }

        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
        .container-narrow { max-width: 900px; margin: 0 auto; padding: 0 20px; }

        /* ========== HEADER ========== */
        .site-header { background: var(--bg-white); position: sticky; top: 0; z-index: 1000; box-shadow: var(--shadow-sm); border-bottom: 1px solid var(--border-light); }

        .nav-top { background: var(--bg-white); padding: 0 20px; }
        .nav-top-inner { max-width: var(--max-width); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; height: 56px; gap: 16px; }

        .nav-logo { display: flex; align-items: center; gap: 8px; color: var(--text); font-weight: 700; font-size: 1.2rem; flex-shrink: 0; }
        .nav-logo:hover { color: var(--primary); }
        .nav-logo-icon { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; background: var(--primary); color: #fff; border-radius: var(--radius-sm); font-weight: 800; font-size: 1rem; flex-shrink: 0; }

        .nav-top-actions { display: flex; align-items: center; gap: 10px; }
        .nav-search-wrap { display: flex; align-items: center; background: var(--bg); border-radius: 28px; border: 1px solid var(--border); overflow: hidden; transition: border-color var(--transition); }
        .nav-search-wrap:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,95,220,0.08); }
        .nav-search-input { border: none; background: transparent; padding: 9px 14px; font-size: 0.9rem; outline: none; width: 180px; color: var(--text); }
        .nav-search-input::placeholder { color: var(--text-muted); }
        .nav-search-btn { border: none; background: transparent; color: var(--text-secondary); padding: 9px 14px; font-size: 0.95rem; transition: color var(--transition); }
        .nav-search-btn:hover { color: var(--primary); }

        .nav-cta-btn { display: inline-flex; align-items: center; gap: 6px; background: var(--primary); color: #fff; padding: 9px 18px; border-radius: 28px; font-weight: 600; font-size: 0.9rem; white-space: nowrap; transition: background var(--transition), box-shadow var(--transition); flex-shrink: 0; }
        .nav-cta-btn:hover { background: var(--primary-dark); color: #fff; box-shadow: var(--shadow); }
        .nav-cta-btn i { font-size: 0.85rem; }

        .nav-mobile-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; padding: 6px 8px; border-radius: var(--radius-sm); }
        .nav-mobile-toggle:hover { color: var(--primary); background: var(--primary-light); }

        .nav-bottom { background: var(--bg-white); border-top: 1px solid var(--border-light); padding: 0 20px; }
        .nav-bottom-inner { max-width: var(--max-width); margin: 0 auto; display: flex; align-items: center; gap: 4px; height: 46px; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
        .nav-bottom-inner::-webkit-scrollbar { display: none; }

        .nav-tab { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 24px; font-size: 0.9rem; font-weight: 500; color: var(--text-secondary); white-space: nowrap; transition: all var(--transition); flex-shrink: 0; }
        .nav-tab:hover { color: var(--primary); background: var(--primary-light); }
        .nav-tab.active { background: var(--primary); color: #fff; font-weight: 600; box-shadow: var(--shadow-sm); }
        .nav-tab-icon { font-size: 0.85rem; }

        /* ========== BREADCRUMB BAR ========== */
        .breadcrumb-bar { background: var(--bg-white); border-bottom: 1px solid var(--border-light); padding: 14px 0; }
        .breadcrumb-list { display: flex; align-items: center; gap: 6px; font-size: 0.88rem; flex-wrap: wrap; color: var(--text-muted); }
        .breadcrumb-list a { color: var(--text-secondary); }
        .breadcrumb-list a:hover { color: var(--primary); }
        .breadcrumb-sep { color: var(--border); user-select: none; }
        .breadcrumb-current { color: var(--text); font-weight: 500; }

        /* ========== MAIN LAYOUT ========== */
        .article-main { flex: 1; padding: 32px 0 48px; }
        .article-grid { display: grid; grid-template-columns: 1fr 320px; gap: 32px; align-items: start; }

        /* ========== ARTICLE CONTENT ========== */
        .article-card { background: var(--bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow); overflow: hidden; }

        .article-cover { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; display: block; border-bottom: 1px solid var(--border-light); }
        .article-body { padding: 32px 36px; }

        .article-meta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-bottom: 10px; }
        .article-cat-tag { display: inline-block; background: var(--primary-light); color: var(--primary); padding: 5px 12px; border-radius: 20px; font-size: 0.82rem; font-weight: 600; }
        .article-date { color: var(--text-muted); font-size: 0.85rem; display: flex; align-items: center; gap: 4px; }
        .article-date i { font-size: 0.8rem; }

        .article-title { font-size: 1.8rem; font-weight: 700; line-height: 1.35; color: var(--text); margin-bottom: 20px; }

        .article-text { color: var(--text); line-height: 1.85; font-size: 1rem; }
        .article-text h2 { font-size: 1.4rem; font-weight: 700; margin: 28px 0 14px; color: var(--text); }
        .article-text h3 { font-size: 1.18rem; font-weight: 600; margin: 22px 0 10px; color: var(--text); }
        .article-text p { margin-bottom: 14px; }
        .article-text ul, .article-text ol { margin-bottom: 14px; padding-left: 20px; }
        .article-text ul { list-style: disc; }
        .article-text ol { list-style: decimal; }
        .article-text li { margin-bottom: 6px; }
        .article-text img { border-radius: var(--radius); margin: 16px 0; }
        .article-text blockquote { border-left: 4px solid var(--primary); background: var(--primary-light); padding: 14px 20px; margin: 18px 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-secondary); }
        .article-text code { background: #f4f5f7; padding: 2px 7px; border-radius: 4px; font-size: 0.9rem; color: #c7254e; }
        .article-text pre { background: #1d2130; color: #e8f0fe; padding: 18px 22px; border-radius: var(--radius); overflow-x: auto; margin: 16px 0; font-size: 0.88rem; line-height: 1.6; }

        /* ========== SIDEBAR ========== */
        .sidebar { display: flex; flex-direction: column; gap: 22px; position: sticky; top: 120px; }

        .sidebar-card { background: var(--bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 22px; }
        .sidebar-card-title { font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: 14px; padding-bottom: 10px; border-bottom: 2px solid var(--primary-light); display: flex; align-items: center; gap: 7px; }
        .sidebar-card-title i { color: var(--primary); font-size: 0.95rem; }

        .sidebar-post-list { display: flex; flex-direction: column; gap: 2px; }
        .sidebar-post-item { }
        .sidebar-post-link { display: block; padding: 10px 12px; border-radius: var(--radius-sm); font-size: 0.9rem; color: var(--text-secondary); transition: all var(--transition); line-height: 1.4; }
        .sidebar-post-link:hover { background: var(--primary-light); color: var(--primary); }
        .sidebar-post-date { font-size: 0.76rem; color: var(--text-muted); display: block; margin-top: 2px; }

        .sidebar-cta-card { background: linear-gradient(135deg, var(--primary) 0%, #0f4cc0 100%); color: #fff; border-radius: var(--radius-lg); padding: 24px 22px; text-align: center; }
        .sidebar-cta-card h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; color: #fff; }
        .sidebar-cta-card p { font-size: 0.88rem; opacity: 0.9; margin-bottom: 14px; line-height: 1.5; }
        .sidebar-cta-btn { display: inline-block; background: #fff; color: var(--primary); padding: 10px 22px; border-radius: 24px; font-weight: 700; font-size: 0.9rem; transition: all var(--transition); }
        .sidebar-cta-btn:hover { background: #e8f0fe; color: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(0,0,0,0.18); }

        /* ========== NOT FOUND ========== */
        .not-found-block { background: var(--bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 60px 40px; text-align: center; }
        .not-found-icon { font-size: 4rem; color: var(--text-muted); margin-bottom: 16px; }
        .not-found-block h2 { font-size: 1.6rem; font-weight: 700; margin-bottom: 8px; color: var(--text); }
        .not-found-block p { color: var(--text-secondary); margin-bottom: 20px; }
        .not-found-btn { display: inline-block; background: var(--primary); color: #fff; padding: 11px 28px; border-radius: 24px; font-weight: 600; transition: all var(--transition); }
        .not-found-btn:hover { background: var(--primary-dark); color: #fff; box-shadow: var(--shadow-md); }

        /* ========== CTA SECTION ========== */
        .cta-section { background: var(--bg-white); padding: 48px 0; border-top: 1px solid var(--border-light); }
        .cta-inner { text-align: center; max-width: 620px; margin: 0 auto; padding: 0 20px; }
        .cta-section h2 { font-size: 1.6rem; font-weight: 700; margin-bottom: 10px; color: var(--text); }
        .cta-section p { color: var(--text-secondary); margin-bottom: 22px; font-size: 1rem; }
        .cta-btn-group { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
        .btn-primary-lg { display: inline-flex; align-items: center; gap: 7px; background: var(--primary); color: #fff; padding: 13px 30px; border-radius: 28px; font-weight: 700; font-size: 1rem; transition: all var(--transition); border: none; }
        .btn-primary-lg:hover { background: var(--primary-dark); color: #fff; box-shadow: var(--shadow-md); transform: translateY(-1px); }
        .btn-outline-lg { display: inline-flex; align-items: center; gap: 7px; background: transparent; color: var(--primary); padding: 13px 30px; border-radius: 28px; font-weight: 700; font-size: 1rem; border: 2px solid var(--primary); transition: all var(--transition); }
        .btn-outline-lg:hover { background: var(--primary-light); color: var(--primary-dark); }

        /* ========== FOOTER ========== */
        .site-footer { background: #1d2130; color: #c4c8d4; padding: 48px 0 20px; margin-top: 0; }
        .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 36px; margin-bottom: 32px; }
        .footer-brand-name { font-size: 1.3rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
        .footer-brand-desc { font-size: 0.9rem; line-height: 1.6; color: #a0a5b2; max-width: 340px; }
        .footer-col h4 { font-size: 1rem; font-weight: 600; color: #fff; margin-bottom: 12px; }
        .footer-col ul { display: flex; flex-direction: column; gap: 7px; }
        .footer-col ul li a { color: #a0a5b2; font-size: 0.9rem; transition: color var(--transition); }
        .footer-col ul li a:hover { color: #fff; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 18px; text-align: center; font-size: 0.82rem; color: #7a7f8c; }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .article-grid { grid-template-columns: 1fr; gap: 24px; }
            .sidebar { position: static; top: auto; flex-direction: row; flex-wrap: wrap; gap: 16px; }
            .sidebar-card { flex: 1 1 260px; }
            .sidebar-cta-card { flex: 1 1 260px; }
            .nav-search-input { width: 130px; }
            .article-body { padding: 24px; }
        }

        @media (max-width: 768px) {
            .nav-search-wrap { display: none; }
            .nav-cta-btn span { display: none; }
            .nav-cta-btn { padding: 9px 12px; font-size: 0.85rem; }
            .nav-cta-btn i { margin: 0; font-size: 1rem; }
            .nav-mobile-toggle { display: block; }
            .nav-bottom-inner { gap: 2px; }
            .nav-tab { padding: 7px 12px; font-size: 0.82rem; }
            .nav-tab-icon { display: none; }
            .article-body { padding: 20px; }
            .article-title { font-size: 1.4rem; }
            .sidebar { flex-direction: column; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
            .footer-brand { grid-column: 1 / -1; }
            .cta-btn-group { flex-direction: column; align-items: center; }
        }

        @media (max-width: 520px) {
            .nav-logo span { font-size: 1rem; }
            .nav-logo-icon { width: 28px; height: 28px; font-size: 0.85rem; }
            .nav-top-inner { height: 48px; }
            .nav-bottom-inner { height: 40px; }
            .nav-tab { padding: 6px 10px; font-size: 0.78rem; }
            .article-body { padding: 16px; }
            .article-title { font-size: 1.25rem; }
            .article-meta { gap: 8px; }
            .article-text { font-size: 0.95rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 18px; }
            .breadcrumb-list { font-size: 0.8rem; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #1a6fb5;
            --color-primary-dark: #145686;
            --color-primary-light: #e8f4fd;
            --color-accent: #e8831a;
            --color-accent-hover: #c96e14;
            --color-bg: #f7f9fc;
            --color-white: #ffffff;
            --color-text: #1e2a36;
            --color-text-weak: #5c6b7a;
            --color-text-muted: #8a95a3;
            --color-border: #dce3ea;
            --color-border-light: #e9eef4;
            --color-success: #2d9d5a;
            --color-warning: #f0a030;
            --color-danger: #d14343;
            --color-card-shadow: 0 2px 12px rgba(26, 111, 181, 0.07);
            --color-card-hover-shadow: 0 8px 30px rgba(26, 111, 181, 0.14);
            --color-nav-shadow: 0 2px 18px rgba(0, 0, 0, 0.07);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-pill: 50px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            text-decoration: none;
            color: var(--color-primary);
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1, h2, h3, h4, h5, h6 {
            margin: 0;
            line-height: 1.3;
            color: var(--color-text);
        }
        p {
            margin: 0;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 通用板块间距 ===== */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-lg {
            padding: var(--spacing-2xl) 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 10px;
            color: var(--color-text);
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-weak);
            text-align: center;
            margin-bottom: var(--spacing-lg);
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-divider {
            width: 56px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
            margin: 8px auto 30px;
        }

        /* ===== 站点头部 ===== */
        .site-header {
            background: var(--color-white);
            box-shadow: var(--color-nav-shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .nav-top {
            border-bottom: 1px solid var(--color-border-light);
        }
        .nav-top-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.3px;
            text-decoration: none;
            transition: opacity var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-logo:hover {
            opacity: 0.82;
            color: var(--color-text);
        }
        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-md);
            font-weight: 800;
            font-size: 1.15rem;
            flex-shrink: 0;
        }
        .nav-top-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search-wrap {
            display: flex;
            align-items: center;
            background: var(--color-bg);
            border-radius: var(--radius-pill);
            padding: 6px 6px 6px 16px;
            border: 1px solid var(--color-border);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .nav-search-wrap:focus-within {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(26, 111, 181, 0.1);
        }
        .nav-search-input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.9rem;
            width: 180px;
            color: var(--color-text);
        }
        .nav-search-input::placeholder {
            color: var(--color-text-muted);
        }
        .nav-search-btn {
            background: var(--color-primary);
            border: none;
            color: #fff;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-search-btn:hover {
            background: var(--color-primary-dark);
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent);
            color: #fff;
            padding: 9px 18px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            white-space: nowrap;
            transition: background var(--transition-fast), transform var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-cta-btn:hover {
            background: var(--color-accent-hover);
            color: #fff;
            transform: translateY(-1px);
        }
        .nav-mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--color-text);
            cursor: pointer;
            padding: 6px 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .nav-mobile-toggle:hover {
            background: var(--color-bg);
        }
        /* 第二行频道 Tabs */
        .nav-bottom {
            background: var(--color-white);
        }
        .nav-bottom-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            gap: 4px;
            height: 48px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .nav-bottom-inner::-webkit-scrollbar {
            display: none;
        }
        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--color-text-weak);
            text-decoration: none;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-tab:hover {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }
        .nav-tab.active {
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
        }
        .nav-tab.active:hover {
            background: var(--color-primary-dark);
            color: #fff;
        }
        .nav-tab-icon {
            font-size: 0.85rem;
        }

        /* ===== 分类 Banner ===== */
        .category-banner {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 70px 0;
            display: flex;
            align-items: center;
            min-height: 280px;
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 111, 181, 0.88) 0%, rgba(20, 86, 134, 0.94) 100%);
            z-index: 1;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
        }
        .category-banner-content {
            text-align: center;
            color: #fff;
        }
        .category-banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.6px;
            margin-bottom: 16px;
            border: 1px solid rgba(255, 255, 255, 0.25);
        }
        .category-banner-content h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }
        .category-banner-content .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.9);
            max-width: 600px;
            margin: 0 auto 20px;
            line-height: 1.6;
        }
        .category-banner-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
        }
        .category-banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* ===== 分类介绍卡片 ===== */
        .category-intro-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: var(--color-card-shadow);
            border: 1px solid var(--color-border-light);
            margin-top: -40px;
            position: relative;
            z-index: 5;
        }
        .category-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .category-intro-text h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--color-text);
        }
        .category-intro-text p {
            color: var(--color-text-weak);
            font-size: 0.98rem;
            line-height: 1.75;
        }
        .category-stats-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: flex-end;
        }
        .stat-item {
            text-align: center;
            background: var(--color-primary-light);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            min-width: 100px;
            flex: 1;
            max-width: 150px;
        }
        .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 4px;
        }
        .stat-label {
            font-size: 0.82rem;
            color: var(--color-text-weak);
        }

        /* ===== 文章卡片网格 ===== */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--color-card-shadow);
            border: 1px solid var(--color-border-light);
            transition: transform var(--transition-normal), box-shadow var(--transition-normal);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--color-card-hover-shadow);
        }
        .article-card-img {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #e8eef4;
        }
        .article-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .article-card:hover .article-card-img img {
            transform: scale(1.06);
        }
        .article-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--color-primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.3px;
            z-index: 2;
        }
        .article-card-body {
            padding: 20px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card-body h3 {
            font-size: 1.08rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .article-card-body h3 a {
            color: var(--color-text);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .article-card-body h3 a:hover {
            color: var(--color-primary);
        }
        .article-card-excerpt {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--color-border-light);
        }
        .article-card-footer .card-date {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .article-card-footer .card-read-more {
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.82rem;
            display: flex;
            align-items: center;
            gap: 3px;
            transition: gap var(--transition-fast);
        }
        .article-card-footer .card-read-more:hover {
            gap: 6px;
        }

        /* ===== 流程步骤 ===== */
        .steps-section {
            background: var(--color-white);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            box-shadow: var(--color-card-shadow);
            border: 1px solid var(--color-border-light);
            margin: 0 auto;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step-counter;
        }
        .step-item {
            text-align: center;
            position: relative;
            padding: 28px 16px 20px;
            border-radius: var(--radius-lg);
            background: var(--color-bg);
            transition: transform var(--transition-normal), box-shadow var(--transition-normal);
            counter-increment: step-counter;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: 0 6px 20px rgba(26, 111, 181, 0.1);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 50%;
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 14px;
        }
        .step-item h4 {
            font-size: 1.02rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--color-text);
        }
        .step-item p {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            line-height: 1.55;
        }
        .step-connector {
            display: none;
        }

        /* ===== FAQ 折叠 ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: box-shadow var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 18px 50px 18px 22px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            position: relative;
            line-height: 1.5;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: var(--color-bg);
        }
        .faq-question::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 1rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-normal);
        }
        .faq-item.open .faq-question::after {
            transform: translateY(-50%) rotate(180deg);
            color: var(--color-primary);
        }
        .faq-answer {
            display: none;
            padding: 0 22px 20px;
            font-size: 0.93rem;
            color: var(--color-text-weak);
            line-height: 1.75;
            border-top: 1px solid var(--color-border-light);
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(26, 111, 181, 0.06);
        }

        /* ===== CTA 板块 ===== */
        .cta-section-alt {
            background: linear-gradient(145deg, #1a6fb5 0%, #145686 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #fff;
        }
        .cta-section-alt h2 {
            color: #fff;
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .cta-section-alt .cta-desc {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1rem;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-btn-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: #fff;
            color: var(--color-primary);
            padding: 13px 30px;
            border-radius: var(--radius-pill);
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }
        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
            color: var(--color-primary-dark);
        }
        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: transparent;
            color: #fff;
            padding: 13px 30px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            border: 2px solid rgba(255, 255, 255, 0.55);
            transition: all var(--transition-fast);
        }
        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #1a2633;
            color: #c0c9d2;
            padding: 50px 0 0;
            margin-top: var(--spacing-xl);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand-name {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-brand-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #9ca7b3;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #9ca7b3;
            font-size: 0.9rem;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.85rem;
            color: #7a8896;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-row {
            padding: 16px 0 0;
            font-size: 0.88rem;
            color: var(--color-text-muted);
        }
        .breadcrumb-row a {
            color: var(--color-text-weak);
        }
        .breadcrumb-row a:hover {
            color: var(--color-primary);
        }
        .breadcrumb-row .separator {
            margin: 0 8px;
        }

        /* ===== 标签云 ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
            margin-top: 10px;
        }
        .tag-pill {
            display: inline-block;
            background: var(--color-primary-light);
            color: var(--color-primary);
            padding: 6px 15px;
            border-radius: var(--radius-pill);
            font-size: 0.84rem;
            font-weight: 500;
            text-decoration: none;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }
        .tag-pill:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        /* ===== 分页 ===== */
        .pagination-row {
            display: flex;
            justify-content: center;
            gap: 6px;
            margin-top: 32px;
        }
        .page-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--color-white);
            color: var(--color-text);
            border: 1px solid var(--color-border);
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        .page-num:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .page-num.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .page-num.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* ===== 响应式设计 ===== */
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-intro-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .category-stats-row {
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .category-banner-content h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-search-wrap {
                display: none;
            }
            .nav-cta-btn {
                padding: 7px 14px;
                font-size: 0.82rem;
            }
            .nav-mobile-toggle {
                display: block;
            }
            .nav-bottom-inner {
                gap: 2px;
                padding: 0 10px;
            }
            .nav-tab {
                padding: 7px 12px;
                font-size: 0.84rem;
            }
            .article-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .category-banner {
                padding: 50px 0;
                min-height: 220px;
            }
            .category-banner-content h1 {
                font-size: 1.7rem;
            }
            .category-banner-content .banner-desc {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.55rem;
            }
            .category-intro-card {
                margin-top: -24px;
                padding: 24px 18px;
            }
            .cta-section-alt {
                padding: 36px 20px;
            }
            .cta-section-alt h2 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .steps-section {
                padding: 28px 18px;
            }
        }
        @media (max-width: 520px) {
            .nav-top-inner {
                height: 52px;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .nav-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.95rem;
            }
            .nav-cta-btn {
                font-size: 0.78rem;
                padding: 6px 11px;
                gap: 3px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .category-banner-content h1 {
                font-size: 1.45rem;
            }
            .category-stats-row {
                gap: 10px;
            }
            .stat-item {
                padding: 14px 12px;
                min-width: 70px;
            }
            .stat-num {
                font-size: 1.35rem;
            }
            .pagination-row {
                gap: 4px;
            }
            .page-num {
                width: 34px;
                height: 34px;
                font-size: 0.82rem;
            }
            .btn-cta-primary,
            .btn-cta-outline {
                padding: 11px 20px;
                font-size: 0.9rem;
            }
        }

        /* ===== 移动端导航面板（简化抽屉） ===== */
        @media (max-width: 768px) {
            .nav-bottom {
                overflow-x: auto;
            }
            .nav-bottom-inner {
                flex-wrap: nowrap;
                justify-content: flex-start;
            }
        }