/* roulang page: index */
:root {
            --primary: #1e5eff;
            --primary-dark: #1746c7;
            --primary-light: #6d8dff;
            --primary-soft: #eaf0ff;
            --accent: #0ea5e9;
            --bg: #f7f9fc;
            --bg-white: #ffffff;
            --text: #0f172a;
            --text-secondary: #334155;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-light: #eef2f7;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 4px 20px -4px rgba(15, 23, 42, 0.1), 0 4px 12px -2px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 16px 40px -8px rgba(15, 23, 42, 0.15), 0 8px 24px -6px rgba(15, 23, 42, 0.08);
            --shadow-xl: 0 24px 56px -12px rgba(15, 23, 42, 0.2);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
            --header-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 100%;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        textarea {
            resize: vertical;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* 通用文字层级 */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.25rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            letter-spacing: -0.02em;
            margin-bottom: 14px;
        }

        .section-desc {
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: var(--spacing-lg);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 999px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 16px -4px rgba(30, 94, 255, 0.4);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #ffffff;
            box-shadow: 0 8px 24px -6px rgba(30, 94, 255, 0.55);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px -1px rgba(30, 94, 255, 0.35);
        }

        .btn-secondary {
            background: #ffffff;
            color: var(--text);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .btn-secondary:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .btn-light {
            background: #ffffff;
            color: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 16px -4px rgba(255, 255, 255, 0.3);
        }
        .btn-light:hover {
            background: var(--primary-soft);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .btn-lg {
            padding: 15px 36px;
            font-size: 1.05rem;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.82rem;
        }
        .btn-block {
            width: 100%;
        }

        /* Focus accessibility */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(30, 94, 255, 0.35);
            outline-offset: 2px;
            border-radius: 8px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px -6px rgba(15, 23, 42, 0.1);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            width: 100%;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            min-height: 48px;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 4px 12px -4px rgba(30, 94, 255, 0.4);
            letter-spacing: -0.02em;
        }
        .logo-text {
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }
        .logo-sub {
            display: block;
            font-size: 0.72rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.03em;
            line-height: 1.3;
        }
        .logo-link {
            display: flex;
            align-items: center;
            text-decoration: none;
            color: inherit;
        }
        .logo-link:hover {
            color: inherit;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all var(--transition-fast);
            cursor: pointer;
            letter-spacing: 0.01em;
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-link.active {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-link .chevron {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
            display: inline-block;
        }
        .nav-item:hover .chevron {
            transform: rotate(180deg);
        }

        .nav-dropdown {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: #ffffff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-light);
            min-width: 240px;
            padding: 10px 8px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all var(--transition-base);
            z-index: 999;
        }
        .nav-item:hover .nav-dropdown {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(4px);
        }
        .nav-dropdown-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            text-decoration: none;
        }
        .nav-dropdown-item:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .nav-dropdown-item .drop-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        .header-search {
            position: relative;
            display: flex;
            align-items: center;
        }
        .header-search input {
            width: 200px;
            padding: 10px 16px 10px 40px;
            font-size: 0.88rem;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: #ffffff;
            color: var(--text);
            transition: all var(--transition-fast);
        }
        .header-search input::placeholder {
            color: var(--text-light);
        }
        .header-search input:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 4px rgba(30, 94, 255, 0.1);
            width: 240px;
        }
        .header-search .search-icon {
            position: absolute;
            left: 14px;
            font-size: 0.9rem;
            color: var(--text-muted);
            pointer-events: none;
        }

        .mobile-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary-soft);
            color: var(--primary);
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            transition: all var(--transition-fast);
            border: none;
            cursor: pointer;
        }
        .mobile-toggle:hover {
            background: var(--primary);
            color: #fff;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: #ffffff;
            z-index: 998;
            padding: var(--spacing-md);
            overflow-y: auto;
            flex-direction: column;
            gap: 4px;
            border-top: 1px solid var(--border-light);
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu .nav-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 14px 18px;
            font-size: 1.05rem;
            border-radius: var(--radius-sm);
            color: var(--text);
            background: transparent;
        }
        .mobile-menu .nav-link:hover,
        .mobile-menu .nav-link.active {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .mobile-submenu {
            padding-left: 18px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-submenu .nav-dropdown-item {
            padding: 12px 14px;
            font-size: 0.95rem;
        }

        /* ============ HERO BENTO ============ */
        .hero {
            padding: var(--spacing-lg) 0 var(--spacing-xl);
            background: var(--bg);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: "";
            position: absolute;
            top: -20%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(30, 94, 255, 0.05) 0%, transparent 70%);
            pointer-events: none;
            border-radius: 50%;
        }
        .hero::after {
            content: "";
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(14, 165, 233, 0.04) 0%, transparent 70%);
            pointer-events: none;
            border-radius: 50%;
        }

        .hero-bento {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            grid-template-rows: auto auto;
            gap: var(--spacing-md);
            position: relative;
            z-index: 1;
        }

        .hero-main {
            grid-column: 1 / 2;
            grid-row: 1 / 3;
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            background-image: linear-gradient(140deg, #ffffff 60%, var(--primary-soft) 130%);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .hero-badge-row {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: var(--spacing-md);
            flex-wrap: wrap;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 5px 12px;
            border-radius: 999px;
        }
        .hero-badge .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }

        .hero-title {
            font-size: clamp(1.9rem, 3.8vw, 3rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.03em;
            color: var(--text);
            margin-bottom: var(--spacing-md);
        }
        .hero-title .highlight {
            color: var(--primary);
            position: relative;
        }
        .hero-title .highlight::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 0;
            right: 0;
            height: 6px;
            background: rgba(30, 94, 255, 0.12);
            border-radius: 4px;
            z-index: -1;
        }

        .hero-text {
            font-size: 1.08rem;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-md);
            max-width: 560px;
        }

        .hero-cta-row {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            margin-bottom: var(--spacing-lg);
        }

        .hero-stats {
            display: flex;
            align-items: center;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
            border-top: 1px solid var(--border-light);
            padding-top: var(--spacing-md);
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-stat-number {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.02em;
        }
        .hero-stat-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-mini-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
            min-height: 160px;
            justify-content: center;
        }
        .hero-mini-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--primary-light);
        }
        .hero-mini-card .mini-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 6px;
        }
        .hero-mini-card .mini-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
        }
        .hero-mini-card .mini-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.55;
        }
        .hero-mini-card .mini-bg {
            position: absolute;
            top: 0;
            right: 0;
            width: 80px;
            height: 80px;
            background: rgba(30, 94, 255, 0.04);
            border-radius: 0 0 0 80px;
            pointer-events: none;
        }

        .hero-cta-bar {
            grid-column: 2 / 4;
            grid-row: 2 / 3;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            box-shadow: var(--shadow-md);
            flex-wrap: wrap;
        }
        .hero-cta-bar-text {
            color: #ffffff;
            font-weight: 700;
            font-size: 1.05rem;
            line-height: 1.4;
        }
        .hero-cta-bar-sub {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.82rem;
            font-weight: 500;
            margin-top: 4px;
        }

        /* ============ 通用板块段落 ============ */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-alt {
            background: #ffffff;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .section-soft {
            background: var(--bg);
        }

        /* 数据指标条 */
        .metrics-bar {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .metric-item {
            text-align: center;
            padding: 8px 0;
        }
        .metric-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.03em;
            line-height: 1.3;
        }
        .metric-label {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* 产线能力 */
        .capacity-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .capacity-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .capacity-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }
        .capacity-num {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
        }
        .capacity-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .capacity-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* 参数表 */
        .param-wrap {
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .param-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }
        .param-table th,
        .param-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border-light);
            vertical-align: middle;
        }
        .param-table th {
            background: var(--primary-soft);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .param-table tr:last-child td {
            border-bottom: none;
        }
        .param-table td:first-child {
            font-weight: 600;
            color: var(--text);
            white-space: nowrap;
        }
        .param-table td {
            color: var(--text-secondary);
        }
        .param-table .tag {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            padding: 3px 12px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .param-table tr:hover td {
            background: #fafbff;
        }

        /* 案例现场 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .case-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .case-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }
        .case-thumb {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #f1f5f9;
        }
        .case-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .case-card:hover .case-thumb img {
            transform: scale(1.04);
        }
        .case-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            font-size: 0.72rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 999px;
            box-shadow: var(--shadow-sm);
        }
        .case-body {
            padding: var(--spacing-md);
        }
        .case-title {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 6px;
        }
        .case-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* 流程步骤 */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            counter-reset: flow;
        }
        .flow-step {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: all var(--transition-base);
        }
        .flow-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .flow-step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
        }
        .flow-step-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .flow-step-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 分类入口墙 */
        .entry-wall {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-sm);
        }
        .entry-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            gap: 12px;
            transition: all var(--transition-fast);
        }
        .entry-card:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .entry-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .entry-name {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
        }
        .entry-count {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* CMS 资讯列表 */
        .news-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: var(--spacing-lg);
        }
        .news-main-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .news-item {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: var(--spacing-md);
            align-items: flex-start;
            transition: all var(--transition-fast);
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
            transform: translateX(3px);
        }
        .news-item-img {
            width: 100px;
            height: 74px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: #f1f5f9;
        }
        .news-item-content {
            flex: 1;
            min-width: 0;
        }
        .news-item-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.74rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .news-item-meta .tag {
            background: var(--primary-soft);
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 500;
        }
        .news-item-excerpt {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-top: 2px;
        }

        .news-sidebar {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: fit-content;
        }
        .news-sidebar-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: var(--spacing-sm);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .news-sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-sidebar-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-light);
        }
        .news-sidebar-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .news-sidebar-item .rank {
            width: 26px;
            height: 26px;
            border-radius: 8px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 0.72rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .news-sidebar-item .stitle {
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--text-secondary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .no-updates {
            text-align: center;
            padding: var(--spacing-lg);
            color: var(--text-muted);
            font-size: 0.95rem;
            background: #ffffff;
            border-radius: var(--radius-md);
            border: 1px dashed var(--border);
        }

        /* 合作伙伴 */
        .partner-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: var(--spacing-sm);
        }
        .partner-item {
            background: #ffffff;
            border-radius: var(--radius-sm);
            padding: var(--spacing-md);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            text-align: center;
            transition: all var(--transition-fast);
        }
        .partner-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .partner-logo {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: -0.03em;
        }
        .partner-name {
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--text-secondary);
            line-height: 1.4;
        }

        /* 用户评价 */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .review-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .review-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .review-stars {
            color: #f59e0b;
            font-size: 1.1rem;
            letter-spacing: 3px;
            margin-bottom: 10px;
        }
        .review-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-sm);
        }
        .review-author {
            display: flex;
            align-items: center;
            gap: 10px;
            border-top: 1px solid var(--border-light);
            padding-top: var(--spacing-sm);
        }
        .review-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .review-name {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text);
        }
        .review-role {
            font-size: 0.72rem;
            color: var(--text-muted);
        }

        /* 保障承诺条 */
        .guarantee-bar {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            box-shadow: var(--shadow-md);
        }
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #ffffff;
        }
        .guarantee-item .g-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .guarantee-item .g-text {
            font-size: 0.9rem;
            font-weight: 600;
        }
        .guarantee-item .g-sub {
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.65);
            font-weight: 400;
        }

        /* 询盘表单 */
        .form-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-md);
        }
        .form-info .form-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
        }
        .form-info .form-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
        }
        .form-contact-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .form-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .form-contact-item .fc-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .form-box form {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-sm);
        }
        .form-group label {
            display: block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            font-size: 0.9rem;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: #fff;
            color: var(--text);
            transition: all var(--transition-fast);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 4px rgba(30, 94, 255, 0.08);
        }
        .form-group textarea {
            min-height: 100px;
        }

        /* 页脚 */
        .site-footer {
            background: var(--text);
            color: rgba(255, 255, 255, 0.8);
            padding: var(--spacing-xl) 0 var(--spacing-lg);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-lg);
        }
        .footer-brand .logo-text {
            color: #ffffff;
        }
        .footer-brand .logo-sub {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-desc {
            font-size: 0.85rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-top: var(--spacing-sm);
            max-width: 320px;
        }
        .footer-col-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.02em;
        }
        .footer-col-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col-list a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }
        .footer-col-list a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: var(--spacing-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }
        .footer-copy {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-links {
            display: flex;
            gap: var(--spacing-md);
            font-size: 0.78rem;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-links a:hover {
            color: #ffffff;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .hero-bento {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto auto auto;
            }
            .hero-main {
                grid-column: 1 / 3;
                grid-row: 1 / 2;
            }
            .hero-cta-bar {
                grid-column: 1 / 3;
                grid-row: 3 / 4;
            }
            .hero-mini-card {
                min-height: 130px;
            }
            .metrics-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .capacity-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .entry-wall {
                grid-template-columns: repeat(3, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .partner-grid {
                grid-template-columns: repeat(4, 1fr);
            }
            .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .form-wrap {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
                --spacing-xl: 40px;
                --spacing-lg: 28px;
                --spacing-md: 20px;
            }
            .header-search {
                display: none;
            }
            .main-nav {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .hero-bento {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }
            .hero-main {
                grid-column: 1;
                grid-row: auto;
                padding: var(--spacing-lg);
            }
            .hero-cta-bar {
                grid-column: 1;
                grid-row: auto;
                flex-direction: column;
                text-align: center;
                align-items: stretch;
            }
            .hero-mini-card {
                min-height: auto;
            }
            .hero-stats {
                gap: var(--spacing-md);
            }
            .metrics-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-sm);
            }
            .capacity-grid {
                grid-template-columns: 1fr;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .flow-grid {
                grid-template-columns: 1fr;
            }
            .entry-wall {
                grid-template-columns: repeat(2, 1fr);
            }
            .partner-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .review-grid {
                grid-template-columns: 1fr;
            }
            .guarantee-bar {
                flex-direction: column;
                align-items: stretch;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .param-table th,
            .param-table td {
                padding: 12px 14px;
                font-size: 0.8rem;
            }
            .news-item {
                flex-direction: column;
            }
            .news-item-img {
                width: 100%;
                height: 160px;
            }
            .section-title {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-text {
                font-size: 0.95rem;
            }
            .hero-cta-row {
                flex-direction: column;
                align-items: stretch;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .metrics-bar {
                grid-template-columns: 1fr 1fr;
                padding: var(--spacing-md);
            }
            .metric-number {
                font-size: 1.5rem;
            }
            .entry-wall {
                grid-template-columns: 1fr;
            }
            .partner-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .review-card {
                padding: var(--spacing-md);
            }
            .form-wrap {
                padding: var(--spacing-md);
            }
            .container {
                padding: 0 var(--spacing-sm);
            }
        }

/* roulang page: article */
:root {
            --primary: #1e5eff;
            --primary-dark: #1746c7;
            --primary-light: #6d8dff;
            --primary-soft: #eaf0ff;
            --accent: #0ea5e9;
            --bg: #f7f9fc;
            --bg-white: #ffffff;
            --text: #0f172a;
            --text-secondary: #334155;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-light: #eef2f7;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 4px 20px -4px rgba(15, 23, 42, 0.1), 0 4px 12px -2px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 16px 40px -8px rgba(15, 23, 42, 0.15), 0 8px 24px -6px rgba(15, 23, 42, 0.08);
            --shadow-xl: 0 24px 56px -12px rgba(15, 23, 42, 0.2);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
            --header-height: 72px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        * {
            box-sizing: border-box;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 100%;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        textarea {
            resize: vertical;
        }
        ul {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 999px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 16px -4px rgba(30, 94, 255, 0.4);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #ffffff;
            box-shadow: 0 8px 24px -6px rgba(30, 94, 255, 0.55);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px -1px rgba(30, 94, 255, 0.35);
        }
        .btn-secondary {
            background: #ffffff;
            color: var(--text);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .btn-secondary:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            box-shadow: var(--shadow-md);
        }
        .btn-light {
            background: #ffffff;
            color: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 16px -4px rgba(255, 255, 255, 0.3);
        }
        .btn-light:hover {
            background: var(--primary-soft);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 14px 36px;
            font-size: 1.05rem;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }
        .header-left {
            display: flex;
            align-items: center;
            gap: 16px;
            min-width: 0;
        }
        .logo-wrap {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }
        .logo-wrap:hover {
            color: inherit;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, #1e5eff 0%, #0ea5e9 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            letter-spacing: -0.02em;
            flex-shrink: 0;
            box-shadow: 0 4px 12px -2px rgba(30, 94, 255, 0.35);
        }
        .logo-text-group {
            display: flex;
            flex-direction: column;
            min-width: 0;
            line-height: 1.25;
        }
        .logo-text {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
        }
        .logo-sub {
            font-size: 0.72rem;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-link.active {
            color: var(--primary);
            background: var(--primary-soft);
            font-weight: 600;
        }
        .chevron {
            font-size: 0.6rem;
            opacity: 0.6;
            transition: transform var(--transition-fast);
        }
        .nav-item:hover .chevron {
            transform: rotate(180deg);
        }
        .nav-dropdown {
            position: absolute;
            top: calc(100% + 12px);
            left: 0;
            min-width: 220px;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-light);
            padding: 8px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all var(--transition-base);
            z-index: 200;
        }
        .nav-item:hover .nav-dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .nav-dropdown-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .nav-dropdown-item:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .drop-icon {
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #f1f5f9;
            border-radius: 999px;
            padding: 6px 14px;
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }
        .header-search:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(30, 94, 255, 0.1);
        }
        .header-search input {
            width: 120px;
            font-size: 0.82rem;
            color: var(--text);
        }
        .header-search input::placeholder {
            color: var(--text-light);
        }
        .header-search .search-icon {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            background: linear-gradient(180deg, #f0f5ff 0%, #f7f9fc 100%);
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb-sep {
            color: var(--text-light);
            margin: 0 2px;
        }
        .breadcrumb-current {
            color: var(--text-secondary);
            font-weight: 500;
            max-width: 360px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* Article Hero */
        .article-hero-section {
            background: #ffffff;
            padding: var(--spacing-lg) 0 var(--spacing-md);
            border-bottom: 1px solid var(--border-light);
        }
        .article-hero-inner {
            max-width: 860px;
        }
        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }
        .article-title {
            font-size: clamp(1.7rem, 4vw, 2.4rem);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.02em;
            color: var(--text);
            margin-bottom: 16px;
        }
        .article-meta-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        .article-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--text-light);
        }

        /* Article Body */
        .article-body-section {
            background: #ffffff;
            padding: var(--spacing-md) 0 var(--spacing-xl);
        }
        .article-body-inner {
            max-width: 860px;
        }
        .article-cover-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: var(--spacing-lg);
            box-shadow: var(--shadow-lg);
        }
        .article-cover-wrap img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }
        .article-content-body {
            font-size: 1.02rem;
            line-height: 1.85;
            color: var(--text-secondary);
        }
        .article-content-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
            margin: 2.2rem 0 1rem;
            padding-left: 1rem;
            border-left: 4px solid var(--primary);
            line-height: 1.4;
        }
        .article-content-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text);
            margin: 1.8rem 0 0.8rem;
        }
        .article-content-body p {
            margin-bottom: 1.2rem;
        }
        .article-content-body ul,
        .article-content-body ol {
            margin: 0 0 1.2rem 1.5rem;
            padding-left: 0;
        }
        .article-content-body ul {
            list-style: disc;
        }
        .article-content-body ol {
            list-style: decimal;
        }
        .article-content-body li {
            margin-bottom: 0.4rem;
        }
        .article-content-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem auto;
        }
        .article-content-body blockquote {
            background: #f8fafc;
            border-left: 4px solid var(--accent);
            padding: 16px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.5rem 0;
            color: var(--text-secondary);
            font-size: 0.98rem;
        }
        .article-content-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content-body a:hover {
            color: var(--primary-dark);
        }
        .article-content-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.92rem;
        }
        .article-content-body th,
        .article-content-body td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }
        .article-content-body th {
            background: #f8fafc;
            font-weight: 600;
            color: var(--text);
        }
        .article-not-found {
            text-align: center;
            padding: 60px 24px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }
        .article-not-found h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        /* Article Highlights */
        .article-highlights-section {
            background: var(--bg);
            padding: var(--spacing-xl) 0;
        }
        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .highlight-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }
        .highlight-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }
        .highlight-icon {
            font-size: 1.8rem;
            margin-bottom: 12px;
        }
        .highlight-card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }
        .highlight-card-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* Related Posts */
        .related-section {
            background: #ffffff;
            padding: var(--spacing-xl) 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .related-card {
            display: block;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            color: inherit;
        }
        .related-card-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .related-card:hover .related-card-title {
            color: var(--primary);
        }
        .related-card-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* CTA Section */
        .article-cta-section {
            background: linear-gradient(135deg, #1e5eff 0%, #0ea5e9 100%);
            padding: var(--spacing-xl) 0;
            position: relative;
            overflow: hidden;
        }
        .article-cta-section::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            top: -220px;
            right: -100px;
        }
        .article-cta-section::after {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            bottom: -180px;
            left: -60px;
        }
        .article-cta-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .article-cta-text h2 {
            font-size: clamp(1.4rem, 3vw, 2rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .article-cta-text p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.95rem;
            max-width: 520px;
            line-height: 1.7;
        }
        .article-cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* FAQ Section */
        .article-faq-section {
            background: var(--bg);
            padding: var(--spacing-xl) 0;
        }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            list-style: none;
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-icon {
            font-size: 1.2rem;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform var(--transition-fast);
        }
        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.9rem;
            line-height: 1.75;
            color: var(--text-muted);
        }

        /* Bottom CTA */
        .article-bottom-cta {
            background: #ffffff;
            padding: var(--spacing-lg) 0;
            border-top: 1px solid var(--border-light);
        }
        .bottom-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .bottom-cta-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
        }
        .bottom-cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: #0f172a;
            color: rgba(255, 255, 255, 0.8);
            padding: var(--spacing-2xl) 0 var(--spacing-md);
            font-size: 0.88rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-brand .logo-wrap {
            margin-bottom: 16px;
        }
        .footer-desc {
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.75;
            font-size: 0.85rem;
            max-width: 360px;
        }
        .footer-col-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col-list a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }
        .footer-col-list a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-copy {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.82rem;
        }
        .footer-links {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.82rem;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .highlights-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                gap: 10px;
                padding: 8px 0;
            }
            .header-left {
                flex: 1;
            }
            .main-nav {
                order: 3;
                width: 100%;
                overflow-x: auto;
                gap: 2px;
                padding-bottom: 4px;
                -webkit-overflow-scrolling: touch;
            }
            .nav-link {
                padding: 6px 12px;
                font-size: 0.82rem;
            }
            .header-actions {
                flex-shrink: 0;
            }
            .header-search input {
                width: 80px;
            }
            .nav-dropdown {
                display: none;
            }
            .article-hero-section {
                padding: var(--spacing-md) 0;
            }
            .article-body-section {
                padding: var(--spacing-md) 0 var(--spacing-lg);
            }
            .highlights-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .article-cta-actions {
                width: 100%;
            }
            .blog-cta-actions .btn {
                width: 100%;
            }
            .bottom-cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .bottom-cta-actions {
                width: 100%;
            }
            .bottom-cta-actions .btn {
                flex: 1;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .article-title {
                font-size: 1.5rem;
            }
            .breadcrumb-current {
                max-width: 180px;
            }
        }
        @media (max-width: 520px) {
            .header-search {
                display: none;
            }
            .header-actions .btn {
                padding: 7px 14px;
                font-size: 0.78rem;
            }
            .logo-text {
                font-size: 0.92rem;
            }
            .logo-sub {
                font-size: 0.65rem;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
                border-radius: 10px;
            }
            .article-meta-row {
                gap: 10px;
                font-size: 0.8rem;
            }
            .article-cover-wrap {
                border-radius: var(--radius-md);
            }
            .article-content-body {
                font-size: 0.95rem;
            }
            .faq-item summary {
                padding: 14px 16px;
                font-size: 0.88rem;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1e5eff;
            --primary-dark: #1746c7;
            --primary-light: #6d8dff;
            --primary-soft: #eaf0ff;
            --accent: #0ea5e9;
            --bg: #f7f9fc;
            --bg-white: #ffffff;
            --text: #0f172a;
            --text-secondary: #334155;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-light: #eef2f7;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 4px 20px -4px rgba(15, 23, 42, 0.1), 0 4px 12px -2px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 16px 40px -8px rgba(15, 23, 42, 0.15), 0 8px 24px -6px rgba(15, 23, 42, 0.08);
            --shadow-xl: 0 24px 56px -12px rgba(15, 23, 42, 0.2);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
            --header-height: 72px;
            --gold: #f59e0b;
            --gold-soft: #fef3c7;
            --silver: #94a3b8;
            --silver-soft: #f1f5f9;
            --bronze: #d97706;
            --bronze-soft: #fffbeb;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: var(--header-height);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 100%;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        textarea {
            resize: vertical;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* 通用文字层级 */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.25rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            letter-spacing: -0.02em;
            margin-bottom: 14px;
        }
        .section-desc {
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: var(--spacing-lg);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 999px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 16px -4px rgba(30, 94, 255, 0.4);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #ffffff;
            box-shadow: 0 8px 24px -6px rgba(30, 94, 255, 0.55);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px -1px rgba(30, 94, 255, 0.35);
        }
        .btn-secondary {
            background: #ffffff;
            color: var(--text);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .btn-secondary:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            box-shadow: var(--shadow-md);
        }
        .btn-light {
            background: #ffffff;
            color: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 16px -4px rgba(255, 255, 255, 0.3);
        }
        .btn-light:hover {
            background: var(--primary-soft);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: var(--spacing-md);
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #1e5eff 0%, #0ea5e9 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.02em;
            box-shadow: 0 4px 10px -2px rgba(30, 94, 255, 0.35);
        }
        .logo-text {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
        }
        .logo-sub {
            display: block;
            font-size: 0.7rem;
            color: var(--text-muted);
            font-weight: 400;
            letter-spacing: 0.01em;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
        }
        .nav-item {
            position: relative;
            display: flex;
            align-items: center;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-link.active {
            color: var(--primary);
            background: var(--primary-soft);
            font-weight: 600;
        }
        .nav-link .chevron {
            font-size: 0.65rem;
            transition: transform var(--transition-fast);
        }
        .nav-item:hover .chevron {
            transform: rotate(180deg);
        }
        .nav-dropdown {
            position: absolute;
            top: calc(100% + 8px);
            left: 0;
            min-width: 220px;
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: var(--spacing-xs);
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all var(--transition-fast);
            z-index: 100;
        }
        .nav-item:hover .nav-dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .nav-dropdown-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .nav-dropdown-item:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .nav-dropdown-item .drop-icon {
            font-size: 1rem;
            width: 24px;
            text-align: center;
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 6px 12px 6px 16px;
            transition: all var(--transition-fast);
        }
        .header-search:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 4px var(--primary-soft);
            background: #fff;
        }
        .header-search input {
            width: 140px;
            font-size: 0.82rem;
            color: var(--text);
            background: transparent;
            border: none;
            outline: none;
        }
        .header-search input::placeholder {
            color: var(--text-light);
        }
        .header-search button {
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            border-radius: 50%;
            transition: all var(--transition-fast);
        }
        .header-search button:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            background: var(--primary-soft);
            border-radius: var(--radius-sm);
            color: var(--primary);
            font-size: 1.3rem;
            transition: all var(--transition-fast);
        }
        .nav-toggle:hover {
            background: var(--primary);
            color: #fff;
        }

        /* Hero Section - 分类页Hero */
        .cat-hero {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 45%, #1e5eff 100%);
            padding: var(--spacing-2xl) 0 var(--spacing-xl);
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/fed135037f9d52b6.jpg') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .cat-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.55) 0%, rgba(15, 23, 42, 0.3) 50%, rgba(15, 23, 42, 0.6) 100%);
            z-index: 0;
        }
        .cat-hero .container {
            position: relative;
            z-index: 1;
        }
        .cat-hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }
        .cat-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(6px);
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 600;
            color: #fff;
            letter-spacing: 0.03em;
            margin-bottom: var(--spacing-md);
        }
        .cat-hero-badge .hot-dot {
            width: 8px;
            height: 8px;
            background: #ef4444;
            border-radius: 50%;
            animation: pulse-dot 1.2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.3); }
        }
        .cat-hero h1 {
            font-size: clamp(2.2rem, 4.5vw, 3.5rem);
            font-weight: 700;
            color: #ffffff;
            line-height: 1.25;
            letter-spacing: -0.03em;
            margin-bottom: var(--spacing-md);
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }
        .cat-hero p {
            font-size: 1.05rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: var(--spacing-sm);
            max-width: 560px;
        }
        .cat-hero-actions {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            margin-top: var(--spacing-lg);
        }
        .cat-hero-stats {
            display: flex;
            gap: var(--spacing-lg);
            margin-top: var(--spacing-lg);
            flex-wrap: wrap;
        }
        .cat-hero-stat {
            text-align: left;
        }
        .cat-hero-stat .stat-num {
            font-size: 1.8rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: -0.02em;
        }
        .cat-hero-stat .stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 0.02em;
        }
        .cat-hero-panel {
            background: #ffffff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: var(--spacing-lg);
            position: relative;
            overflow: hidden;
        }
        .cat-hero-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #1e5eff, #0ea5e9, #f59e0b);
        }
        .panel-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: var(--spacing-sm);
        }
        .panel-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .panel-list li {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.88rem;
            color: var(--text-secondary);
        }
        .panel-list li:last-child {
            border-bottom: none;
        }
        .panel-list .tag-highlight {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.72rem;
            font-weight: 600;
            color: #fff;
            background: #ef4444;
            padding: 4px 10px;
            border-radius: 999px;
            white-space: nowrap;
        }
        .panel-list .tag-hot {
            background: #f59e0b;
        }
        .panel-list .tag-new {
            background: #10b981;
        }

        /* Sections */
        .section {
            padding: var(--spacing-2xl) 0;
        }
        .section-alt {
            background: #ffffff;
        }
        .section-alt-soft {
            background: var(--primary-soft);
        }

        /* 卖点三连 */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .feature-card {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            text-align: left;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #1e5eff, #0ea5e9);
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .feature-card:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            background: var(--primary-soft);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: var(--spacing-md);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* 场景演示 */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
        }
        .scene-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .scene-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .scene-card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .scene-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .scene-card:hover .scene-card-img img {
            transform: scale(1.05);
        }
        .scene-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(15, 23, 42, 0.75);
            color: #fff;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            backdrop-filter: blur(4px);
        }
        .scene-card-body {
            padding: var(--spacing-md);
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .scene-card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .scene-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: var(--spacing-sm);
            flex-grow: 1;
        }
        .scene-link {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-fast);
        }
        .scene-link:hover {
            gap: 8px;
        }

        /* 社会认同 */
        .proof-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
        }
        .proof-item {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }
        .proof-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .proof-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .proof-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .testimonial-card {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: all var(--transition-base);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border);
        }
        .testimonial-stars {
            color: var(--gold);
            font-size: 0.9rem;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }
        .testimonial-text {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-sm);
        }
        .testimonial-author {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--text-muted);
        }

        /* 对比差异 */
        .compare-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .compare-card {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            position: relative;
            transition: all var(--transition-base);
        }
        .compare-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .compare-card.highlight {
            border-color: var(--primary);
            box-shadow: 0 8px 32px -8px rgba(30, 94, 255, 0.3);
        }
        .compare-card .compare-emoji {
            font-size: 1.8rem;
            margin-bottom: 10px;
        }
        .compare-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .compare-card p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 10px;
        }
        .compare-card .compare-score {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 10px;
            border-radius: 999px;
        }

        /* 资讯列表 - 排名字样式 */
        .rank-section {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .rank-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: var(--spacing-md);
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }
        .rank-header .section-title {
            margin-bottom: 0;
            font-size: 1.3rem;
        }
        .rank-row {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            padding: 14px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .rank-row:hover {
            background: var(--bg);
            padding-left: 8px;
            border-radius: var(--radius-sm);
        }
        .rank-row:last-child {
            border-bottom: none;
        }
        .rank-number {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            border-radius: 50%;
            flex-shrink: 0;
            background: var(--bg);
            color: var(--text-muted);
        }
        .rank-number.gold {
            background: var(--gold-soft);
            color: var(--gold);
        }
        .rank-number.silver {
            background: var(--silver-soft);
            color: var(--silver);
        }
        .rank-number.bronze {
            background: var(--bronze-soft);
            color: var(--bronze);
        }
        .rank-row .rank-content {
            flex-grow: 1;
            min-width: 0;
        }
        .rank-row .rank-title {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 2px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .rank-row .rank-excerpt {
            font-size: 0.78rem;
            color: var(--text-muted);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .rank-row .rank-stars {
            color: var(--gold);
            font-size: 0.78rem;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .rank-row .rank-score {
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
            min-width: 48px;
            text-align: right;
        }
        .rank-empty {
            text-align: center;
            padding: var(--spacing-lg);
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* FAQ */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            padding: 16px 20px;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            transition: all var(--transition-fast);
            background: transparent;
            width: 100%;
            text-align: left;
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-soft);
            border-radius: 50%;
            color: var(--primary);
            font-size: 1rem;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding-bottom: 16px;
        }

        /* 保障条 */
        .assurance-bar {
            background: linear-gradient(135deg, #1e5eff 0%, #1746c7 100%);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            color: #fff;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
            position: relative;
            overflow: hidden;
        }
        .assurance-bar::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
        }
        .assurance-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            position: relative;
            z-index: 1;
        }
        .assurance-item .ass-icon {
            width: 42px;
            height: 42px;
            background: rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .assurance-item h4 {
            font-size: 0.92rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .assurance-item p {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.72);
            line-height: 1.5;
            margin-bottom: 0;
        }

        /* 底部固定转化条 */
        .fixed-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-light);
            z-index: 999;
            padding: 10px 0;
            transform: translateY(100%);
            transition: transform var(--transition-slow);
            box-shadow: 0 -8px 30px rgba(15, 23, 42, 0.08);
        }
        .fixed-cta-bar.show {
            transform: translateY(0);
        }
        .fixed-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }
        .fixed-cta-text {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .fixed-cta-text strong {
            color: var(--text);
            display: block;
            font-size: 0.92rem;
        }

        /* Footer */
        .site-footer {
            background: #0f172a;
            color: #fff;
            padding: var(--spacing-2xl) 0 var(--spacing-md);
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-brand .logo-wrap {
            margin-bottom: var(--spacing-sm);
        }
        .footer-desc {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 320px;
        }
        .footer-col-title {
            font-size: 0.85rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.03em;
        }
        .footer-col-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col-list a {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }
        .footer-col-list a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }
        .footer-copy {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-links {
            display: flex;
            gap: var(--spacing-md);
        }
        .footer-links a {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: #ffffff;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            :root {
                --spacing-2xl: 48px;
                --spacing-xl: 40px;
            }
            .cat-hero-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .cat-hero {
                min-height: auto;
                padding: var(--spacing-xl) 0;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .compare-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .proof-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-md);
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 60px;
                --spacing-2xl: 40px;
                --spacing-xl: 32px;
                --spacing-lg: 24px;
                --spacing-md: 18px;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                align-items: flex-start;
                padding: var(--spacing-md);
                gap: 6px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-lg);
                transform: translateY(-110%);
                transition: transform var(--transition-base);
                z-index: 99;
                max-height: 80vh;
                overflow-y: auto;
            }
            .main-nav.mobile-open {
                transform: translateY(0);
            }
            .nav-item {
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-link {
                width: 100%;
                justify-content: space-between;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 0.92rem;
            }
            .nav-dropdown {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                border: none;
                border-left: 3px solid var(--primary-light);
                border-radius: 0;
                padding-left: var(--spacing-sm);
                margin-left: var(--spacing-md);
                display: none;
                min-width: auto;
                background: transparent;
            }
            .nav-item:hover .nav-dropdown,
            .nav-item:focus-within .nav-dropdown {
                display: block;
            }
            .nav-dropdown-item {
                padding: 8px 12px;
                font-size: 0.82rem;
            }
            .header-search {
                display: none;
            }
            .header-cta .btn {
                display: none;
            }
            .cat-hero h1 {
                font-size: clamp(1.6rem, 5vw, 2rem);
            }
            .cat-hero p {
                font-size: 0.9rem;
            }
            .cat-hero-stats {
                gap: var(--spacing-md);
            }
            .cat-hero-stat .stat-num {
                font-size: 1.4rem;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
            .proof-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-sm);
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .assurance-bar {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            .rank-row {
                flex-wrap: wrap;
                gap: 8px;
            }
            .rank-row .rank-content {
                flex-basis: calc(100% - 50px);
            }
            .rank-row .rank-stars,
            .rank-row .rank-score {
                font-size: 0.72rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .fixed-cta-bar {
                padding: 8px 0;
            }
            .fixed-cta-inner {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .fixed-cta-text {
                font-size: 0.78rem;
            }
        }

        @media (max-width: 520px) {
            .cat-hero {
                padding: var(--spacing-lg) 0;
            }
            .cat-hero h1 {
                font-size: 1.5rem;
            }
            .cat-hero p {
                font-size: 0.85rem;
                line-height: 1.6;
            }
            .cat-hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .cat-hero-actions .btn {
                width: 100%;
            }
            .cat-hero-stats {
                gap: var(--spacing-sm);
            }
            .cat-hero-stat .stat-num {
                font-size: 1.2rem;
            }
            .cat-hero-stat .stat-label {
                font-size: 0.7rem;
            }
            .cat-hero-panel {
                padding: var(--spacing-md);
            }
            .proof-strip {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .proof-num {
                font-size: 1.5rem;
            }
            .proof-label {
                font-size: 0.7rem;
            }
            .section {
                padding: var(--spacing-xl) 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-desc {
                font-size: 0.88rem;
            }
            .rank-section {
                padding: var(--spacing-md);
            }
            .rank-row .rank-title {
                font-size: 0.82rem;
            }
            .rank-row .rank-excerpt {
                font-size: 0.7rem;
            }
            .faq-question {
                font-size: 0.85rem;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 0.8rem;
            }
        }