/* roulang page: index */
:root {
            --brand: #2563EB;
            --brand-deep: #1D4ED8;
            --brand-light: #EFF6FF;
            --accent: #F59E0B;
            --bg: #F8FAFC;
            --bg-warm: #FAF5EB;
            --card: #FFFFFF;
            --text: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --success: #10B981;
            --error: #EF4444;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 24px -8px rgba(37,99,235,0.16);
            --shadow-dock: 0 4px 20px rgba(0,0,0,0.08);
            --container: 1200px;
            --space: 96px;
            --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            font-variant-numeric: tabular-nums;
        }

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

        a {
            color: var(--brand);
            text-decoration: none;
            transition: all 0.2s ease;
        }

        a:hover {
            color: var(--brand-deep);
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

        .section-pad {
            padding: var(--space) 0;
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
            transition: all 0.2s ease;
            border: 1px solid transparent;
            line-height: 1.4;
        }

        .btn-primary:hover {
            background: var(--brand-deep);
            box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
            transform: translateY(-1px);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
        }

        .btn-primary:focus-visible {
            outline: 2px solid #93C5FD;
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--brand);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            border: 1px solid var(--brand);
            transition: all 0.2s ease;
            line-height: 1.4;
        }

        .btn-secondary:hover {
            background: var(--brand-light);
            color: var(--brand-deep);
            transform: translateY(-1px);
        }

        .btn-secondary:active {
            transform: translateY(1px);
        }

        .btn-secondary:focus-visible {
            outline: 2px solid #93C5FD;
            outline-offset: 2px;
        }

        .btn-block {
            width: 100%;
        }

        .text-link {
            color: var(--brand);
            font-weight: 500;
            position: relative;
            transition: all 0.2s ease;
        }

        .text-link:hover {
            color: var(--brand-deep);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .text-link:focus-visible {
            outline: 2px solid #93C5FD;
            outline-offset: 2px;
        }

        /* ===== 标签 ===== */
        .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
            background: var(--brand-light);
            color: var(--brand);
        }

        .tag-accent {
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
        }

        /* ===== Dock 导航 ===== */
        .dock-wrap {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: min(920px, calc(100% - 32px));
        }

        .dock-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: #fff;
            border-radius: 999px;
            box-shadow: var(--shadow-dock);
            padding: 8px 20px;
            transition: background 0.3s ease, box-shadow 0.3s ease;
            gap: 12px;
        }

        .dock-nav.scrolled {
            background: rgba(248, 250, 252, 0.92);
            -webkit-backdrop-filter: blur(8px);
            backdrop-filter: blur(8px);
            box-shadow: 0 8px 28px rgba(15, 23, 42, 0.1);
        }

        .dock-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 18px;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .dock-logo:hover {
            color: var(--brand);
        }

        .dock-logo i {
            color: var(--accent);
            font-size: 20px;
        }

        .dock-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .dock-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .dock-links a:hover {
            background: var(--brand-light);
            color: var(--brand);
        }

        .dock-links a.active {
            background: var(--brand);
            color: #fff;
        }

        .dock-links a.active:hover {
            background: var(--brand-deep);
            color: #fff;
        }

        .dock-cta {
            display: inline-flex;
            align-items: center;
            background: var(--brand);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 8px 18px;
            border-radius: 999px;
            transition: all 0.2s ease;
            flex-shrink: 0;
            white-space: nowrap;
        }

        .dock-cta:hover {
            background: var(--brand-deep);
            color: #fff;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }

        .dock-burger {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            font-size: 18px;
            color: var(--text);
            background: var(--bg);
            transition: all 0.2s ease;
            flex-shrink: 0;
        }

        .dock-burger:hover {
            background: var(--brand-light);
            color: var(--brand);
        }

        /* ===== 移动端全屏菜单 ===== */
        .mobile-menu {
            position: fixed;
            inset: 0;
            z-index: 999;
            background: #fff;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 28px;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }

        .mobile-menu.open {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-menu a {
            font-size: 22px;
            font-weight: 600;
            color: var(--text);
            padding: 8px 24px;
            border-radius: 12px;
            transition: all 0.2s ease;
        }

        .mobile-menu a:hover {
            background: var(--brand-light);
            color: var(--brand);
        }

        .mobile-menu-close {
            position: absolute;
            top: 24px;
            right: 24px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--text);
            transition: all 0.2s ease;
        }

        .mobile-menu-close:hover {
            background: var(--brand-light);
            color: var(--brand);
        }

        /* ===== Hero ===== */
        .hero {
            background: linear-gradient(135deg, #F0F7FF 0%, #FFFFFF 60%, #F8FAFC 100%);
            padding: 130px 0 72px;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero .container {
            display: flex;
            align-items: center;
            gap: 56px;
            position: relative;
            z-index: 1;
        }

        .hero-text {
            flex: 0 0 55%;
            max-width: 620px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand);
            margin-bottom: 24px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        }

        .hero-badge i {
            color: var(--accent);
        }

        .hero-title {
            font-size: 46px;
            line-height: 1.22;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }

        .hero-title .hl {
            color: var(--brand);
            position: relative;
        }

        .hero-sub {
            font-size: 18px;
            line-height: 1.6;
            color: var(--text-muted);
            max-width: 480px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .hero-trust {
            display: flex;
            align-items: center;
            gap: 28px;
            flex-wrap: wrap;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }

        .hero-trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-trust-item i {
            color: var(--success);
            font-size: 14px;
        }

        .hero-media {
            flex: 0 0 45%;
            position: relative;
        }

        .hero-frame {
            position: relative;
            border-radius: 16px;
            padding: 12px;
            background: #fff;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-hover);
        }

        .hero-frame::after {
            content: '';
            position: absolute;
            inset: 6px;
            border: 1px dashed rgba(37, 99, 235, 0.3);
            border-radius: 12px;
            pointer-events: none;
        }

        .hero-frame img {
            border-radius: 10px;
            width: 100%;
            height: 360px;
            object-fit: cover;
        }

        .hero-stamp {
            position: absolute;
            bottom: 20px;
            right: 20px;
            width: 86px;
            height: 86px;
            border-radius: 50%;
            border: 2px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            color: #B45309;
            background: rgba(255, 255, 255, 0.92);
            transform: rotate(-12deg);
            z-index: 2;
            letter-spacing: 0.04em;
            text-align: center;
            line-height: 1.3;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        }

        /* ===== 板块标题 ===== */
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--brand);
            background: var(--brand-light);
            padding: 6px 18px;
            border-radius: 999px;
            margin-bottom: 16px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== 痛点清单 ===== */
        .pain-section {
            background: var(--bg);
            padding: var(--space) 0;
        }

        .pain-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .pain-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all 0.25s ease;
            position: relative;
        }

        .pain-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 24px;
            right: 24px;
            height: 3px;
            border-radius: 0 0 4px 4px;
            background: linear-gradient(90deg, var(--brand), rgba(37, 99, 235, 0.2));
            opacity: 0.6;
            transition: all 0.25s ease;
        }

        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(37, 99, 235, 0.4);
        }

        .pain-card:hover::before {
            opacity: 1;
            background: linear-gradient(90deg, var(--accent), rgba(245, 158, 11, 0.3));
        }

        .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--brand-light);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
        }

        .pain-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }

        .pain-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== 方案卡片 ===== */
        .solution-section {
            background: #fff;
            padding: var(--space) 0;
        }

        .solution-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .solution-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all 0.25s ease;
            position: relative;
            overflow: hidden;
        }

        .solution-card::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 80px;
            height: 80px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.06), transparent 70%);
            border-radius: 0 0 0 100%;
            pointer-events: none;
        }

        .solution-card:hover {
            background: var(--card);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(37, 99, 235, 0.35);
        }

        .solution-card .sol-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: #fff;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--brand);
            margin-bottom: 20px;
            transition: all 0.25s ease;
        }

        .solution-card:hover .sol-icon {
            background: var(--brand);
            color: #fff;
            border-color: var(--brand);
            transform: scale(1.05);
        }

        .solution-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }

        .solution-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 20px;
            max-width: 90%;
        }

        /* ===== 图文混排 ===== */
        .split-section {
            background: var(--bg-warm);
            padding: var(--space) 0;
            position: relative;
            border-top: 1px dashed var(--border);
            border-bottom: 1px dashed var(--border);
        }

        .split-grid {
            display: flex;
            align-items: center;
            gap: 64px;
        }

        .split-media {
            flex: 0 0 46%;
            position: relative;
        }

        .split-media img {
            border-radius: 16px;
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border);
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        .split-media::before {
            content: '';
            position: absolute;
            inset: -12px 12px 12px -12px;
            border: 1px dashed rgba(37, 99, 235, 0.35);
            border-radius: 20px;
            pointer-events: none;
        }

        .split-media .media-tag {
            position: absolute;
            top: -14px;
            right: 16px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 999px;
            box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
        }

        .split-content {
            flex: 1;
        }

        .split-content .section-label {
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
        }

        .split-content h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .split-content>p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .split-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .split-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            background: rgba(255, 255, 255, 0.75);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 16px 20px;
            transition: all 0.2s ease;
        }

        .split-item:hover {
            background: #fff;
            border-color: rgba(37, 99, 235, 0.3);
            box-shadow: var(--shadow-card);
        }

        .split-item i {
            color: var(--brand);
            font-size: 16px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .split-item h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }

        .split-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 数据区 ===== */
        .stats-section {
            padding: var(--space) 0;
            background: var(--bg);
        }

        .stats-box {
            background: #EEF2FF;
            border-radius: 24px;
            padding: 48px 32px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            border: 1px solid rgba(37, 99, 235, 0.08);
            box-shadow: inset 0 1px 4px rgba(255, 255, 255, 0.6);
        }

        .stats-item {
            text-align: center;
            position: relative;
            padding: 8px 0;
        }

        .stats-item+.stats-item::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            height: 48px;
            width: 1px;
            background: var(--border);
        }

        .stats-num {
            font-size: 44px;
            font-weight: 700;
            color: var(--brand);
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 6px;
        }

        .stats-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ===== CMS 内容动态区 ===== */
        .cms-section {
            background: #fff;
            padding: var(--space) 0;
        }

        .cms-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            margin-bottom: 36px;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            background: var(--card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .cms-item {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 24px;
            border-bottom: 1px solid var(--border);
            transition: all 0.2s ease;
            background: #fff;
        }

        .cms-item:last-child {
            border-bottom: none;
        }

        .cms-item:hover {
            background: var(--bg);
        }

        .cms-item:hover h3 {
            color: var(--brand);
        }

        .cms-thumb {
            width: 120px;
            height: 80px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand-light), #dbeafe);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand);
            font-size: 22px;
            overflow: hidden;
        }

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

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

        .cms-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 6px;
        }

        .cms-cat {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--brand);
            background: var(--brand-light);
            padding: 3px 10px;
            border-radius: 999px;
        }

        .cms-meta time {
            font-size: 12px;
            color: var(--text-muted);
        }

        .cms-info h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 6px;
            transition: color 0.2s ease;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
        }

        .cms-info p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .cms-empty {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 64px 24px;
            gap: 16px;
            text-align: center;
        }

        .cms-empty i {
            font-size: 44px;
            color: #CBD5E1;
        }

        .cms-empty p {
            font-size: 15px;
            color: var(--text-muted);
        }

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

        /* ===== CTA 触发区 ===== */
        .cta-section {
            background: linear-gradient(135deg, #F0F7FF 0%, #FFFFFF 70%);
            padding: var(--space) 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .cta-box {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.35;
            margin-bottom: 14px;
        }

        .cta-box p {
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 28px;
        }

        .cta-box .btn-primary {
            padding: 14px 40px;
            font-size: 16px;
        }

        .cta-privacy {
            font-size: 12px;
            color: #94A3B8;
            margin-top: 14px;
        }

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

        .cta-privacy a:hover {
            color: var(--brand);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg);
            padding: var(--space) 0;
        }

        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 8px 32px;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            text-align: left;
            padding: 22px 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            background: none;
            transition: all 0.2s ease;
        }

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

        .faq-question:focus-visible {
            outline: 2px solid #93C5FD;
            outline-offset: 2px;
            border-radius: 8px;
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--brand);
            transition: all 0.3s ease;
            flex-shrink: 0;
            background: var(--bg);
        }

        .faq-item.active .faq-icon {
            background: var(--brand);
            color: #fff;
            border-color: var(--brand);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            opacity: 0;
            transition: max-height 0.35s ease, opacity 0.3s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            opacity: 1;
        }

        .faq-answer p {
            padding: 0 0 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #fff;
            border-top: 1px solid var(--border);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding: 64px 0 48px;
        }

        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .footer-logo i {
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 260px;
            margin-bottom: 20px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: var(--text-muted);
            background: var(--bg);
            transition: all 0.2s ease;
        }

        .footer-social a:hover {
            background: var(--brand);
            color: #fff;
            border-color: var(--brand);
        }

        .footer-col h3 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 18px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: var(--text-muted);
            transition: all 0.2s ease;
        }

        .footer-col ul a:hover {
            color: var(--brand);
            padding-left: 4px;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .footer-contact-item i {
            color: var(--brand);
            margin-top: 4px;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom .copyright {
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom .footer-legal {
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-bottom .footer-legal a {
            color: var(--text-muted);
        }

        .footer-bottom .footer-legal a:hover {
            color: var(--brand);
        }

        /* ===== 表单弹层 ===== */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.5);
            z-index: 2000;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.25s ease;
        }

        .modal-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        .modal-card {
            background: #fff;
            border-radius: 20px;
            max-width: 480px;
            width: 100%;
            padding: 32px;
            position: relative;
            box-shadow: 0 24px 48px rgba(15, 23, 42, 0.2);
            transform: translateY(16px);
            transition: transform 0.3s ease;
        }

        .modal-overlay.open .modal-card {
            transform: translateY(0);
        }

        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--text-muted);
            transition: all 0.2s ease;
        }

        .modal-close:hover {
            background: var(--brand-light);
            color: var(--brand);
        }

        .modal-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .modal-card .modal-sub {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            height: 44px;
            border-radius: 10px;
            border: 1px solid #CBD5E1;
            padding: 0 14px;
            font-size: 14px;
            color: var(--text);
            background: #fff;
            transition: all 0.2s ease;
            outline: none;
        }

        .form-group textarea {
            height: 90px;
            padding: 12px 14px;
            resize: vertical;
        }

        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .modal-submit {
            margin-top: 20px;
        }

        .modal-privacy {
            font-size: 11px;
            color: #94A3B8;
            text-align: center;
            margin-top: 16px;
            line-height: 1.5;
        }

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

        .modal-privacy a:hover {
            color: var(--brand);
        }

        .form-success {
            display: none;
            text-align: center;
            padding: 32px 0 20px;
        }

        .form-success i {
            font-size: 48px;
            color: var(--success);
            margin-bottom: 14px;
        }

        .form-success p {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .form-success span {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --space: 80px;
            }
            .hero-title {
                font-size: 38px;
            }
            .hero .container {
                gap: 32px;
            }
            .hero-frame img {
                height: 300px;
            }
            .pain-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space: 64px;
            }
            .dock-links {
                display: none;
            }
            .dock-cta {
                display: none;
            }
            .dock-burger {
                display: flex;
            }
            .hero {
                padding-top: 110px;
                padding-bottom: 56px;
            }
            .hero .container {
                flex-direction: column;
                gap: 40px;
            }
            .hero-text {
                flex: none;
                max-width: 100%;
                text-align: center;
            }
            .hero-sub {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-trust {
                justify-content: center;
                gap: 18px;
            }
            .hero-media {
                flex: none;
                width: 100%;
                max-width: 480px;
            }
            .hero-title {
                font-size: 32px;
                line-height: 1.3;
            }
            .solution-grid {
                grid-template-columns: 1fr;
            }
            .split-grid {
                flex-direction: column;
                gap: 40px;
            }
            .split-media {
                flex: none;
                width: 100%;
                max-width: 480px;
            }
            .stats-box {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 16px;
            }
            .stats-item+.stats-item::before {
                display: none;
            }
            .cms-item {
                padding: 18px;
                gap: 16px;
            }
            .cms-thumb {
                width: 80px;
                height: 60px;
                font-size: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 640px) {
            body {
                padding-bottom: 80px;
            }
            .dock-wrap {
                top: auto;
                bottom: 12px;
                left: 50%;
                transform: translateX(-50%);
                width: calc(100% - 24px);
            }
            .dock-nav {
                padding: 6px 16px;
                border-radius: 18px;
                box-shadow: 0 6px 24px rgba(0, 0, 0, 0.1);
            }
            .dock-logo {
                font-size: 16px;
            }
            .hero {
                padding-top: 96px;
                padding-bottom: 48px;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
            }
            .hero-trust {
                gap: 12px;
                flex-direction: column;
                align-items: flex-start;
                padding-top: 16px;
            }
            .hero-frame img {
                height: 240px;
            }
            .hero-stamp {
                width: 70px;
                height: 70px;
                font-size: 10px;
                bottom: 12px;
                right: 12px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .section-head p {
                font-size: 15px;
            }
            .pain-grid {
                grid-template-columns: 1fr;
            }
            .solution-card {
                padding: 24px;
            }
            .solution-card p {
                max-width: 100%;
            }
            .split-content h2 {
                font-size: 26px;
            }
            .split-item {
                padding: 14px 16px;
            }
            .stats-box {
                grid-template-columns: 1fr 1fr;
                padding: 32px 20px;
            }
            .stats-num {
                font-size: 32px;
            }
            .cms-list {
                border-radius: 12px;
            }
            .cms-item {
                flex-direction: row;
                align-items: flex-start;
                padding: 16px;
            }
            .cms-thumb {
                width: 80px;
                height: 60px;
            }
            .cms-info h3 {
                font-size: 15px;
                -webkit-line-clamp: 2;
            }
            .cms-info p {
                font-size: 13px;
                -webkit-line-clamp: 2;
            }
            .faq-wrap {
                padding: 0 20px;
            }
            .faq-question {
                font-size: 15px;
                padding: 18px 0;
            }
            .cta-box h2 {
                font-size: 26px;
            }
            .cta-box .btn-primary {
                padding: 13px 32px;
                font-size: 15px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding: 48px 0 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .modal-card {
                padding: 24px;
            }
        }

/* roulang page: category1 */
:root {
        --brand: #2563EB;
        --brand-dark: #1D4ED8;
        --accent: #F59E0B;
        --bg: #F8FAFC;
        --ink: #0F172A;
        --body: #334155;
        --muted: #64748B;
        --line: #E2E8F0;
        --success: #10B981;
        --error: #EF4444;
        --card-radius: 16px;
        --btn-radius: 12px;
        --input-radius: 10px;
        --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06);
        --shadow-hover: 0 12px 24px -8px rgba(37, 99, 235, 0.15);
        --shadow-dock: 0 4px 20px rgba(0, 0, 0, 0.08);
        --shadow-btn: 0 4px 12px rgba(37, 99, 235, 0.25);
        --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font-family);
        background-color: var(--bg);
        color: var(--body);
        line-height: 1.7;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
    }

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

    a {
        color: var(--brand);
        text-decoration: none;
        transition: all 0.2s ease;
    }

    a:hover {
        text-decoration: underline;
    }

    button {
        font-family: inherit;
        cursor: pointer;
        border: none;
        background: none;
        transition: all 0.2s ease;
    }

    input,
    select,
    textarea {
        font-family: inherit;
        font-size: 15px;
        width: 100%;
        height: 44px;
        border: 1px solid #CBD5E1;
        border-radius: var(--input-radius);
        padding: 0 14px;
        background: #fff;
        color: var(--ink);
        outline: none;
        transition: all 0.2s ease;
    }

    input:focus,
    select:focus,
    textarea:focus {
        border-color: var(--brand);
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }

    textarea {
        height: 100px;
        padding: 12px 14px;
        resize: vertical;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }

    .section {
        padding: 96px 0;
    }

    @media (max-width: 768px) {
        .section {
            padding: 64px 0;
        }
    }

    /* ===== Dock 导航 ===== */
    .dock-wrap {
        position: fixed;
        top: 16px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 1000;
        width: min(920px, calc(100% - 32px));
        border-radius: 999px;
        background: #fff;
        box-shadow: var(--shadow-dock);
        padding: 8px 20px;
        transition: all 0.3s ease;
    }

    .dock-wrap.scrolled {
        background: rgba(248, 250, 252, 0.92);
        backdrop-filter: blur(10px);
    }

    .dock-nav {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
    }

    .dock-logo {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 18px;
        font-weight: 700;
        color: var(--ink);
        white-space: nowrap;
    }

    .dock-logo i {
        color: var(--brand);
        font-size: 20px;
    }

    .dock-links {
        display: flex;
        align-items: center;
        gap: 4px;
    }

    .dock-links a {
        padding: 8px 16px;
        border-radius: 8px;
        font-size: 14px;
        font-weight: 500;
        color: var(--body);
        transition: all 0.2s ease;
        white-space: nowrap;
    }

    .dock-links a:hover {
        background: #EFF6FF;
        color: var(--brand);
        text-decoration: none;
    }

    .dock-links a.active {
        background: #EFF6FF;
        color: var(--brand);
        font-weight: 600;
    }

    .dock-cta {
        padding: 8px 22px;
        background: var(--brand);
        color: #fff;
        border-radius: 10px;
        font-size: 14px;
        font-weight: 600;
        box-shadow: var(--shadow-btn);
        white-space: nowrap;
        transition: all 0.2s ease;
    }

    .dock-cta:hover {
        background: var(--brand-dark);
        color: #fff;
        text-decoration: none;
        transform: translateY(-1px);
        box-shadow: 0 6px 16px rgba(37, 99, 235, 0.3);
    }

    .dock-burger {
        display: none;
        width: 40px;
        height: 40px;
        border-radius: 10px;
        background: #F1F5F9;
        color: var(--ink);
        font-size: 18px;
        align-items: center;
        justify-content: center;
    }

    .mobile-menu {
        position: fixed;
        inset: 0;
        background: #fff;
        z-index: 999;
        display: flex;
        flex-direction: column;
        padding: 80px 32px 32px;
        transform: translateX(100%);
        transition: transform 0.3s ease;
    }

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

    .mobile-menu a {
        padding: 16px 0;
        font-size: 18px;
        font-weight: 600;
        color: var(--ink);
        border-bottom: 1px solid var(--line);
    }

    .mobile-menu a.active {
        color: var(--brand);
    }

    .mobile-menu-close {
        position: absolute;
        top: 24px;
        right: 24px;
        width: 44px;
        height: 44px;
        border-radius: 12px;
        background: #F1F5F9;
        color: var(--ink);
        font-size: 20px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    @media (max-width: 768px) {
        .dock-links {
            display: none;
        }

        .dock-cta {
            display: none;
        }

        .dock-burger {
            display: flex;
        }

        .dock-wrap {
            padding: 8px 16px;
        }
    }

    /* ===== Hero ===== */
    .page-hero {
        padding: 160px 0 80px;
        background: linear-gradient(180deg, #F0F7FF 0%, #FFFFFF 100%);
        position: relative;
        overflow: hidden;
    }

    .page-hero-bg {
        position: absolute;
        inset: 0;
        background-image: url('/assets/images/backpic/back-1.png');
        background-size: cover;
        background-position: center;
        opacity: 0.08;
    }

    .page-hero-inner {
        position: relative;
        text-align: center;
        max-width: 800px;
        margin: 0 auto;
    }

    .page-hero h1 {
        font-size: 40px;
        font-weight: 700;
        color: var(--ink);
        line-height: 1.3;
        letter-spacing: -0.02em;
        margin-bottom: 20px;
    }

    .page-hero h1 span {
        color: var(--brand);
    }

    .page-hero p {
        font-size: 17px;
        color: var(--muted);
        max-width: 560px;
        margin: 0 auto 28px;
        line-height: 1.8;
    }

    .hero-actions {
        display: flex;
        gap: 16px;
        justify-content: center;
        flex-wrap: wrap;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 12px 28px;
        border-radius: var(--btn-radius);
        font-size: 15px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.2s ease;
    }

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

    .btn-primary:hover {
        background: var(--brand-dark);
        color: #fff;
        text-decoration: none;
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
    }

    .btn-primary:active {
        transform: translateY(0);
    }

    .btn-outline {
        background: #fff;
        color: var(--brand);
        border: 1px solid var(--brand);
    }

    .btn-outline:hover {
        background: #EFF6FF;
        color: var(--brand);
        text-decoration: none;
        transform: translateY(-2px);
    }

    .hero-trust {
        display: flex;
        justify-content: center;
        gap: 32px;
        margin-top: 40px;
        flex-wrap: wrap;
        border-top: 1px solid var(--line);
        padding-top: 24px;
        max-width: 620px;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-trust span {
        font-size: 13px;
        color: var(--muted);
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .hero-trust i {
        color: var(--brand);
    }

    @media (max-width: 768px) {
        .page-hero {
            padding: 120px 0 56px;
        }

        .page-hero h1 {
            font-size: 32px;
        }

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

    /* ===== 卖点卡片 ===== */
    .section-header {
        text-align: center;
        max-width: 640px;
        margin: 0 auto 48px;
    }

    .section-header .badge {
        display: inline-block;
        padding: 4px 16px;
        background: #EFF6FF;
        color: var(--brand);
        border-radius: 999px;
        font-size: 13px;
        font-weight: 600;
        margin-bottom: 16px;
    }

    .section-header h2 {
        font-size: 32px;
        font-weight: 700;
        color: var(--ink);
        line-height: 1.3;
        margin-bottom: 12px;
    }

    .section-header p {
        font-size: 15px;
        color: var(--muted);
        line-height: 1.8;
    }

    .feature-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .feature-card {
        background: #fff;
        border-radius: var(--card-radius);
        padding: 32px 24px;
        box-shadow: var(--shadow-card);
        border: 1px solid var(--line);
        transition: all 0.3s ease;
        position: relative;
        overflow: hidden;
    }

    .feature-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 4px;
        background: var(--brand);
        transition: all 0.3s ease;
    }

    .feature-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-4px);
        border-color: rgba(37, 99, 235, 0.4);
    }

    .feature-card:hover::before {
        background: var(--accent);
    }

    .feature-icon {
        width: 56px;
        height: 56px;
        border-radius: 14px;
        background: #EFF6FF;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 24px;
        color: var(--brand);
        margin-bottom: 20px;
    }

    .feature-card h3 {
        font-size: 20px;
        font-weight: 700;
        color: var(--ink);
        margin-bottom: 10px;
    }

    .feature-card p {
        font-size: 14px;
        color: var(--muted);
        line-height: 1.8;
    }

    @media (max-width: 1024px) {
        .feature-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (max-width: 640px) {
        .feature-grid {
            grid-template-columns: 1fr;
        }

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

    /* ===== 图文交错区 ===== */
    .split-block {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 64px;
        align-items: center;
        margin-bottom: 80px;
    }

    .split-block.reverse {
        direction: rtl;
    }

    .split-block.reverse>* {
        direction: ltr;
    }

    .split-image {
        border-radius: 16px;
        overflow: hidden;
        box-shadow: var(--shadow-hover);
        border: 1px solid var(--line);
        aspect-ratio: 4/3;
        position: relative;
    }

    .split-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .split-content .tag {
        display: inline-block;
        padding: 4px 14px;
        background: #FEF3C7;
        color: #92400E;
        border-radius: 999px;
        font-size: 12px;
        font-weight: 600;
        margin-bottom: 16px;
    }

    .split-content h2 {
        font-size: 28px;
        font-weight: 700;
        color: var(--ink);
        line-height: 1.4;
        margin-bottom: 16px;
    }

    .split-content p {
        font-size: 15px;
        color: var(--muted);
        line-height: 1.9;
        margin-bottom: 16px;
    }

    .split-list {
        list-style: none;
        margin: 20px 0 0;
    }

    .split-list li {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        padding: 8px 0;
        font-size: 15px;
        color: var(--body);
    }

    .split-list li i {
        color: var(--brand);
        margin-top: 4px;
        font-size: 16px;
        flex-shrink: 0;
    }

    .text-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--brand);
        font-weight: 600;
        font-size: 15px;
        margin-top: 20px;
        transition: all 0.2s ease;
    }

    .text-link:hover {
        gap: 10px;
        text-decoration: none;
    }

    @media (max-width: 768px) {
        .split-block {
            grid-template-columns: 1fr;
            gap: 32px;
            margin-bottom: 56px;
        }

        .split-block.reverse {
            direction: ltr;
        }

        .split-content h2 {
            font-size: 24px;
        }
    }

    /* ===== 适用场景 ===== */
    .scenario-section {
        background: #fff;
        border-top: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
    }

    .scenario-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .scenario-card {
        background: var(--bg);
        border-radius: var(--card-radius);
        padding: 32px 24px;
        border: 1px solid var(--line);
        transition: all 0.3s ease;
        text-align: center;
    }

    .scenario-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-4px);
        background: #fff;
    }

    .scenario-card .num {
        font-size: 14px;
        font-weight: 700;
        color: var(--accent);
        margin-bottom: 12px;
        letter-spacing: 0.05em;
    }

    .scenario-card h3 {
        font-size: 18px;
        font-weight: 700;
        color: var(--ink);
        margin-bottom: 10px;
    }

    .scenario-card p {
        font-size: 14px;
        color: var(--muted);
        line-height: 1.8;
    }

    .scenario-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        background: #EFF6FF;
        color: var(--brand);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        margin: 0 auto 16px;
    }

    @media (max-width: 1024px) {
        .scenario-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (max-width: 640px) {
        .scenario-grid {
            grid-template-columns: 1fr;
        }
    }

    /* ===== 流程 ===== */
    .process-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
        position: relative;
    }

    .process-grid::before {
        content: '';
        position: absolute;
        top: 32px;
        left: 10%;
        right: 10%;
        height: 2px;
        background: var(--line);
        z-index: 0;
    }

    .process-step {
        text-align: center;
        position: relative;
        z-index: 1;
        background: var(--bg);
        border-radius: var(--card-radius);
        padding: 24px;
        border: 1px solid var(--line);
        transition: all 0.3s ease;
    }

    .process-step:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-4px);
        background: #fff;
    }

    .process-circle {
        width: 64px;
        height: 64px;
        border-radius: 50%;
        background: var(--brand);
        color: #fff;
        font-size: 24px;
        font-weight: 700;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 16px;
        box-shadow: var(--shadow-btn);
    }

    .process-step h3 {
        font-size: 16px;
        font-weight: 700;
        color: var(--ink);
        margin-bottom: 8px;
    }

    .process-step p {
        font-size: 13px;
        color: var(--muted);
        line-height: 1.7;
    }

    @media (max-width: 1024px) {
        .process-grid {
            grid-template-columns: repeat(2, 1fr);
        }

        .process-grid::before {
            display: none;
        }
    }

    @media (max-width: 640px) {
        .process-grid {
            grid-template-columns: 1fr;
        }
    }

    /* ===== FAQ ===== */
    .faq-section {
        max-width: 860px;
        margin: 0 auto;
    }

    .faq-wrap {
        background: #fff;
        border-radius: 16px;
        border: 1px solid var(--line);
        box-shadow: var(--shadow-card);
        overflow: hidden;
    }

    .faq-item {
        border-bottom: 1px solid var(--line);
    }

    .faq-item:last-child {
        border-bottom: none;
    }

    .faq-q {
        width: 100%;
        text-align: left;
        padding: 20px 24px;
        font-size: 16px;
        font-weight: 600;
        color: var(--ink);
        background: #fff;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        transition: all 0.2s ease;
    }

    .faq-q:hover {
        background: #F8FAFC;
    }

    .faq-q .faq-icon {
        width: 24px;
        height: 24px;
        border-radius: 50%;
        background: #EFF6FF;
        color: var(--brand);
        font-size: 14px;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        transition: all 0.3s ease;
    }

    .faq-item.open .faq-icon {
        transform: rotate(45deg);
        background: var(--brand);
        color: #fff;
    }

    .faq-a {
        display: none;
        padding: 0 24px 20px;
        font-size: 14px;
        color: var(--muted);
        line-height: 1.9;
    }

    .faq-item.open .faq-a {
        display: block;
    }

    /* ===== CTA ===== */
    .cta-section {
        background: linear-gradient(135deg, #EFF6FF 0%, #F8FAFC 100%);
        border-radius: 24px;
        padding: 56px 40px;
        text-align: center;
        border: 1px solid var(--line);
        position: relative;
        overflow: hidden;
    }

    .cta-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--brand), var(--accent));
    }

    .cta-section h2 {
        font-size: 30px;
        font-weight: 700;
        color: var(--ink);
        margin-bottom: 12px;
    }

    .cta-section p {
        font-size: 15px;
        color: var(--muted);
        max-width: 560px;
        margin: 0 auto 24px;
        line-height: 1.8;
    }

    .cta-actions {
        display: flex;
        gap: 16px;
        justify-content: center;
        flex-wrap: wrap;
    }

    .privacy-note {
        font-size: 12px;
        color: var(--muted);
        margin-top: 16px;
    }

    @media (max-width: 640px) {
        .cta-section {
            padding: 40px 24px;
        }

        .cta-section h2 {
            font-size: 24px;
        }
    }

    /* ===== 表单弹层 ===== */
    .modal-overlay {
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.5);
        z-index: 2000;
        display: none;
        align-items: center;
        justify-content: center;
        padding: 20px;
    }

    .modal-overlay.active {
        display: flex;
    }

    .modal-card {
        background: #fff;
        border-radius: 20px;
        max-width: 480px;
        width: 100%;
        padding: 32px;
        position: relative;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    }

    .modal-close {
        position: absolute;
        top: 20px;
        right: 20px;
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: #F1F5F9;
        color: var(--muted);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
    }

    .modal-close:hover {
        background: var(--error);
        color: #fff;
    }

    .modal-card h3 {
        font-size: 22px;
        font-weight: 700;
        color: var(--ink);
        margin-bottom: 8px;
    }

    .modal-card>p {
        font-size: 14px;
        color: var(--muted);
        margin-bottom: 24px;
    }

    .form-group {
        margin-bottom: 16px;
    }

    .form-group label {
        display: block;
        font-size: 13px;
        font-weight: 600;
        color: var(--body);
        margin-bottom: 6px;
    }

    .modal-submit {
        width: 100%;
        height: 44px;
        background: var(--brand);
        color: #fff;
        border-radius: var(--input-radius);
        font-size: 15px;
        font-weight: 600;
        margin-top: 8px;
        box-shadow: var(--shadow-btn);
    }

    .modal-submit:hover {
        background: var(--brand-dark);
        transform: translateY(-1px);
    }

    .modal-privacy {
        font-size: 11px;
        color: var(--muted);
        text-align: center;
        margin-top: 16px;
    }

    .modal-success {
        text-align: center;
        padding: 32px 0;
        display: none;
    }

    .modal-success.show {
        display: block;
    }

    .modal-success .success-icon {
        width: 64px;
        height: 64px;
        border-radius: 50%;
        background: var(--success);
        color: #fff;
        font-size: 28px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 16px;
    }

    .modal-success h4 {
        font-size: 18px;
        font-weight: 700;
        color: var(--ink);
        margin-bottom: 8px;
    }

    .modal-success p {
        font-size: 14px;
        color: var(--muted);
    }

    /* ===== 页脚 ===== */
    .footer {
        background: #fff;
        border-top: 1px solid var(--line);
        padding-top: 64px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
        padding-bottom: 48px;
    }

    .footer-logo {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 20px;
        font-weight: 700;
        color: var(--ink);
        margin-bottom: 14px;
    }

    .footer-logo i {
        color: var(--brand);
    }

    .footer-brand p {
        font-size: 13px;
        color: var(--muted);
        line-height: 1.8;
        max-width: 260px;
        margin-bottom: 20px;
    }

    .footer-social {
        display: flex;
        gap: 12px;
    }

    .footer-social a {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: #F1F5F9;
        color: var(--muted);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        transition: all 0.2s ease;
    }

    .footer-social a:hover {
        background: var(--brand);
        color: #fff;
        text-decoration: none;
        transform: translateY(-2px);
    }

    .footer-col h3 {
        font-size: 15px;
        font-weight: 700;
        color: var(--ink);
        margin-bottom: 16px;
    }

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

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

    .footer-col ul li a {
        font-size: 14px;
        color: var(--muted);
        transition: all 0.2s ease;
    }

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

    .footer-contact-item {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 14px;
        color: var(--muted);
        margin-bottom: 12px;
    }

    .footer-contact-item i {
        color: var(--brand);
        width: 16px;
        text-align: center;
    }

    .footer-bottom {
        border-top: 1px solid var(--line);
        padding: 20px 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 13px;
        color: var(--muted);
    }

    @media (max-width: 1024px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
    }

    @media (max-width: 640px) {
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
        }

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

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --brand: #2563EB;
            --brand-dark: #1D4ED8;
            --brand-light: #EFF6FF;
            --accent: #F59E0B;
            --bg: #F8FAFC;
            --ink: #0F172A;
            --body: #334155;
            --muted: #64748B;
            --line: #E2E8F0;
            --success: #10B981;
            --danger: #EF4444;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-input: 10px;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 24px -8px rgba(37,99,235,0.15);
            --shadow-dock: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-btn: 0 4px 12px rgba(37,99,235,0.25);
            --container: 1200px;
            --space-section: 96px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--body);
            line-height: 1.6;
            font-size: 16px;
            font-variant-numeric: tabular-nums;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        a {
            color: var(--brand);
            text-decoration: none;
            transition: all 0.2s ease;
        }
        a:hover {
            color: var(--brand-dark);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all 0.2s ease;
        }
        input, select, textarea {
            font-family: inherit;
            font-size: 14px;
            transition: all 0.2s ease;
        }
        ul, ol {
            list-style: none;
        }

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

        /* ===== Dock 导航 ===== */
        .dock-wrap {
            position: fixed;
            top: 20px;
            left: 50%;
            transform: translateX(-50%);
            width: min(920px, calc(100% - 32px));
            z-index: 1000;
            transition: all 0.3s ease;
        }
        .dock-wrap.is-scrolled .dock-nav {
            background: rgba(248,250,252,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-dock);
        }
        .dock-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: #ffffff;
            border-radius: 999px;
            padding: 8px 20px;
            box-shadow: var(--shadow-dock);
            border: 1px solid rgba(226,232,240,0.7);
            transition: all 0.3s ease;
            min-height: 60px;
        }
        .dock-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 18px;
            color: var(--ink);
            white-space: nowrap;
        }
        .dock-logo i {
            color: var(--brand);
            font-size: 22px;
        }
        .dock-logo span {
            max-width: 168px;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .dock-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .dock-links a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--body);
            line-height: 1.4;
        }
        .dock-links a:hover {
            background: var(--brand-light);
            color: var(--brand);
        }
        .dock-links a.active {
            background: var(--brand);
            color: #fff;
            font-weight: 600;
        }
        .dock-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--brand);
            color: #fff;
            border-radius: 999px;
            padding: 9px 22px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
        }
        .dock-cta:hover {
            background: var(--brand-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(37,99,235,0.35);
        }
        .dock-cta:active {
            transform: translateY(1px);
        }
        .dock-burger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 999px;
            align-items: center;
            justify-content: center;
            color: var(--ink);
            font-size: 18px;
            border: 1px solid var(--line);
            background: #fff;
        }
        .dock-burger:hover {
            background: var(--brand-light);
            color: var(--brand);
        }

        /* 移动端全屏抽屉菜单 */
        .mobile-drawer {
            position: fixed;
            inset: 0;
            background: #fff;
            z-index: 999;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 24px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-12px);
            transition: all 0.3s ease;
        }
        .mobile-drawer.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .mobile-drawer a {
            font-size: 20px;
            font-weight: 600;
            color: var(--ink);
            padding: 12px 28px;
            border-radius: 12px;
        }
        .mobile-drawer a:hover {
            background: var(--brand-light);
            color: var(--brand);
        }
        .mobile-drawer a.m-drawer-btn {
            background: var(--brand);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .mobile-drawer-close {
            position: absolute;
            top: 24px;
            right: 24px;
            width: 44px;
            height: 44px;
            border-radius: 999px;
            border: 1px solid var(--line);
            background: #fff;
            font-size: 18px;
            color: var(--ink);
        }
        .mobile-drawer-close:hover {
            background: #fee2e2;
            color: var(--danger);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-section {
            padding: 110px 0 0;
            background: linear-gradient(180deg, #F0F7FF 0%, var(--bg) 100%);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            padding: 16px 0;
        }
        .breadcrumb a {
            color: var(--muted);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--brand);
        }
        .breadcrumb .sep {
            color: #cbd5e1;
        }
        .breadcrumb .current {
            color: var(--ink);
            font-weight: 600;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 240px;
        }

        /* ===== 文章头部 ===== */
        .article-header {
            padding-bottom: 32px;
        }
        .article-header h1 {
            font-size: clamp(30px, 4.5vw, 40px);
            line-height: 1.25;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: -0.01em;
            margin: 8px 0 16px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 24px;
        }
        .article-meta span,
        .article-meta a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .category-tag {
            display: inline-block;
            background: var(--brand-light);
            color: var(--brand);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
        }
        .article-intro {
            background: linear-gradient(135deg, #F0F7FF 0%, #EFF6FF 60%, #ffffff 100%);
            border: 1px solid #dbeafe;
            border-radius: 16px;
            padding: 24px 28px;
            font-size: 16px;
            line-height: 1.8;
            color: var(--body);
            border-left: 4px solid var(--brand);
        }

        /* ===== 正文区 ===== */
        .article-content {
            padding: 0 0 24px;
        }
        .article-body {
            max-width: 780px;
            margin: 0 auto;
            background: #fff;
            border-radius: 20px;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
            padding: 48px 56px;
            font-size: 16px;
            line-height: 1.8;
            color: var(--body);
        }
        .article-body p {
            margin-bottom: 1.5em;
        }
        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--ink);
            margin: 2em 0 0.8em;
            padding-top: 0.4em;
            border-top: 1px solid var(--line);
        }
        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--ink);
            margin: 1.6em 0 0.6em;
        }
        .article-body h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--ink);
            margin: 1.4em 0 0.5em;
        }
        .article-body ul {
            margin: 1em 0 1.5em;
            padding-left: 24px;
            list-style: disc;
        }
        .article-body ol {
            margin: 1em 0 1.5em;
            padding-left: 24px;
            list-style: decimal;
        }
        .article-body li {
            margin-bottom: 0.5em;
        }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            background: #fffbeb;
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 1.5em 0;
            color: #92400e;
            font-style: normal;
        }
        .article-body img {
            border-radius: 12px;
            margin: 1.5em 0;
            border: 1px solid var(--line);
        }
        .article-body a {
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
            font-size: 14px;
        }
        .article-body th {
            background: var(--brand-light);
            color: var(--ink);
            font-weight: 600;
            text-align: left;
            padding: 12px 14px;
            border: 1px solid var(--line);
        }
        .article-body td {
            padding: 10px 14px;
            border: 1px solid var(--line);
        }
        .article-body code {
            background: #f1f5f9;
            border-radius: 6px;
            padding: 2px 8px;
            font-size: 14px;
            color: #be185d;
        }

        /* ===== 文章空态 ===== */
        .article-empty {
            padding: 160px 0 120px;
            text-align: center;
        }
        .article-empty .empty-icon {
            font-size: 56px;
            color: #cbd5e1;
            margin-bottom: 16px;
        }
        .article-empty h1 {
            font-size: 28px;
            color: var(--ink);
            margin-bottom: 8px;
        }
        .article-empty p {
            color: var(--muted);
            margin-bottom: 24px;
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 64px 0;
        }
        .section-head {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: -0.01em;
        }
        .section-head p {
            color: var(--muted);
            margin-top: 6px;
            font-size: 15px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(37,99,235,0.4);
        }
        .related-card .related-thumb {
            height: 160px;
            overflow: hidden;
            background: var(--brand-light);
            position: relative;
        }
        .related-card .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .related-card:hover .related-thumb img {
            transform: scale(1.04);
        }
        .related-card .related-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .related-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }
        .related-card .related-meta {
            font-size: 13px;
            color: #94a3b8;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .back-block {
            text-align: center;
            margin-top: 40px;
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            padding: 64px 0 96px;
        }
        .cta-box {
            background: linear-gradient(120deg, #F0F7FF 0%, #ffffff 60%, #FDF4FF 100%);
            border: 1px solid #dbeafe;
            border-radius: 24px;
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-card);
        }
        .cta-box::before {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(37,99,235,0.05);
        }
        .cta-left {
            flex: 1;
        }
        .cta-left h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }
        .cta-left p {
            color: var(--muted);
            font-size: 15px;
            max-width: 480px;
        }
        .cta-right {
            flex-shrink: 0;
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ===== 按钮系统 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--brand);
            color: #fff;
            box-shadow: var(--shadow-btn);
            border: 1px solid transparent;
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            color: #fff;
            box-shadow: 0 8px 20px rgba(37,99,235,0.35);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-secondary {
            background: #fff;
            color: var(--brand);
            border: 1px solid var(--brand);
        }
        .btn-secondary:hover {
            background: var(--brand-light);
            color: var(--brand-dark);
            border-color: var(--brand-dark);
        }
        .btn-outline {
            background: transparent;
            color: var(--muted);
            border: 1px solid var(--line);
        }
        .btn-outline:hover {
            background: var(--bg);
            color: var(--ink);
            border-color: #cbd5e1;
        }
        .btn-block {
            width: 100%;
        }
        .btn:focus-visible {
            outline: 2px solid #93C5FD;
            outline-offset: 2px;
        }
        .text-link {
            color: var(--brand);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .text-link:hover {
            color: var(--brand-dark);
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        .text-link:focus-visible {
            outline: 2px solid #93C5FD;
            outline-offset: 4px;
            border-radius: 4px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #ffffff;
            border-top: 1px solid var(--line);
            padding-top: 64px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 14px;
        }
        .footer-logo i {
            color: var(--brand);
            font-size: 24px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.8;
            max-width: 300px;
            margin-bottom: 18px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 999px;
            background: var(--bg);
            border: 1px solid var(--line);
            color: var(--muted);
            font-size: 14px;
        }
        .footer-social a:hover {
            background: var(--brand);
            border-color: var(--brand);
            color: #fff;
        }
        .footer-col h3 {
            font-size: 14px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--muted);
        }
        .footer-col ul li a:hover {
            color: var(--brand);
        }
        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 12px;
        }
        .footer-contact-item i {
            margin-top: 4px;
            color: var(--brand);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid var(--line);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: #94a3b8;
        }

        /* ===== 表单弹层 ===== */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15,23,42,0.5);
            z-index: 2000;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }
        .modal-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        .modal-card {
            background: #fff;
            border-radius: 20px;
            max-width: 480px;
            width: 100%;
            padding: 32px;
            box-shadow: 0 24px 60px rgba(0,0,0,0.15);
            transform: translateY(20px) scale(0.98);
            transition: all 0.3s ease;
            position: relative;
        }
        .modal-overlay.active .modal-card {
            transform: translateY(0) scale(1);
        }
        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 36px;
            height: 36px;
            border-radius: 999px;
            background: var(--bg);
            border: 1px solid var(--line);
            color: var(--muted);
            font-size: 14px;
        }
        .modal-close:hover {
            background: #fee2e2;
            color: var(--danger);
            border-color: #fecaca;
        }
        .modal-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 6px;
        }
        .modal-card > p {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 24px;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            height: 44px;
            border: 1px solid #CBD5E1;
            border-radius: var(--radius-input);
            padding: 0 14px;
            background: #fff;
            color: var(--ink);
            outline: none;
        }
        .form-group textarea {
            height: auto;
            padding: 12px 14px;
            resize: vertical;
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #94a3b8;
        }
        .form-privacy {
            font-size: 11px;
            color: #94a3b8;
            text-align: center;
            margin-top: 14px;
        }
        .form-privacy a {
            color: var(--brand);
        }
        .form-success {
            display: none;
            text-align: center;
            padding: 32px 0;
        }
        .form-success.show {
            display: block;
        }
        .form-success i {
            font-size: 56px;
            color: var(--success);
            margin-bottom: 12px;
        }
        .form-success p {
            font-size: 16px;
            color: var(--ink);
            font-weight: 600;
        }

        /* ===== 焦点可见性 ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid #93C5FD;
            outline-offset: 2px;
            border-radius: 8px;
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 1024px) {
            :root {
                --space-section: 72px;
            }
            .dock-links a {
                padding: 7px 12px;
                font-size: 14px;
            }
            .related-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            .dock-wrap {
                top: auto;
                bottom: 16px;
                left: 50%;
                transform: translateX(-50%);
                width: calc(100% - 32px);
            }
            .dock-nav {
                min-height: 56px;
                padding: 6px 14px;
            }
            .dock-links {
                display: none;
            }
            .dock-cta {
                display: none;
            }
            .dock-burger {
                display: flex;
            }
            .dock-logo i {
                font-size: 20px;
            }
            .dock-logo span {
                font-size: 16px;
                max-width: 140px;
            }
            .dock-wrap.is-scrolled .dock-nav {
                background: rgba(248,250,252,0.96);
            }

            .breadcrumb-section {
                padding-top: 40px;
            }
            .breadcrumb {
                font-size: 13px;
                padding: 14px 0;
            }
            .breadcrumb .current {
                max-width: 180px;
            }

            .article-header h1 {
                font-size: 28px;
            }
            .article-body {
                padding: 28px 24px;
                font-size: 15px;
                border-radius: 16px;
            }
            .article-intro {
                padding: 20px;
                font-size: 15px;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .related-card .related-thumb {
                height: 180px;
            }

            .cta-box {
                flex-direction: column;
                text-align: center;
                padding: 36px 24px;
            }
            .cta-left p {
                margin: 0 auto;
            }
            .cta-right {
                justify-content: center;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .modal-card {
                padding: 24px;
                border-radius: 16px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .dock-logo span {
                max-width: 120px;
                font-size: 15px;
            }
            .article-meta {
                gap: 12px;
                font-size: 13px;
            }
            .article-body {
                padding: 22px 18px;
            }
            .article-body h2 {
                font-size: 20px;
            }
            .article-body h3 {
                font-size: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-brand {
                grid-column: auto;
            }
            .cta-box {
                padding: 28px 20px;
                border-radius: 16px;
            }
            .btn {
                padding: 11px 20px;
                font-size: 14px;
            }
            .cta-right .btn {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root {
            --brand: #2563EB;
            --brand-dark: #1D4ED8;
            --brand-light: #EFF6FF;
            --accent: #F59E0B;
            --bg: #F8FAFC;
            --text-main: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --success: #10B981;
            --error: #EF4444;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-input: 10px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 24px -8px rgba(37, 99, 235, 0.15);
            --shadow-btn: 0 4px 12px rgba(37, 99, 235, 0.25);
            --font-base: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-base);
            background: var(--bg);
            color: var(--text-body);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
        }
        a {
            color: var(--brand);
            text-decoration: none;
            transition: all 0.2s ease;
        }
        a:hover {
            color: var(--brand-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 96px 0;
            position: relative;
        }
        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 56px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 14px;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.7;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--brand-light);
            color: var(--brand);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            letter-spacing: 0.02em;
            margin-bottom: 12px;
            border: 1px solid rgba(37, 99, 235, 0.15);
        }
        .section-tag::before {
            content: '';
            width: 6px;
            height: 6px;
            background: var(--brand);
            border-radius: 50%;
            display: inline-block;
        }
        /* ===== Dock Nav ===== */
        .dock-wrap {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: min(920px, calc(100% - 32px));
            z-index: 100;
        }
        .dock-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(10px);
            border-radius: 999px;
            padding: 8px 20px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            border: 1px solid var(--border);
            transition: all 0.3s ease;
        }
        .dock-nav.scrolled {
            background: rgba(248, 250, 252, 0.92);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.1);
        }
        .dock-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 18px;
            color: var(--text-main);
            white-space: nowrap;
        }
        .dock-logo i {
            color: var(--brand);
            font-size: 20px;
        }
        .dock-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .dock-links a {
            padding: 8px 16px;
            border-radius: 999px;
            color: var(--text-body);
            font-size: 15px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
        }
        .dock-links a:hover {
            background: var(--brand-light);
            color: var(--brand);
        }
        .dock-links a.active {
            color: var(--brand);
            background: var(--brand-light);
            font-weight: 600;
        }
        .dock-cta {
            background: var(--brand);
            color: #fff;
            padding: 10px 22px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 14px;
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .dock-cta:hover {
            background: var(--brand-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }
        .dock-burger {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text-main);
            padding: 6px;
            border-radius: 8px;
        }
        .dock-burger:hover {
            background: var(--brand-light);
        }
        /* ===== Mobile Menu ===== */
        .mobile-menu {
            position: fixed;
            inset: 0;
            background: #fff;
            z-index: 200;
            padding: 24px;
            display: flex;
            flex-direction: column;
            transform: translateY(-100%);
            transition: transform 0.3s ease;
            visibility: hidden;
        }
        .mobile-menu.open {
            transform: translateY(0);
            visibility: visible;
        }
        .mobile-menu-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
        }
        .mobile-menu-close {
            background: none;
            border: none;
            font-size: 28px;
            color: var(--text-main);
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .mobile-menu-close:hover {
            background: var(--bg);
        }
        .mobile-menu-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .mobile-menu-links a {
            padding: 14px 16px;
            border-radius: 12px;
            font-size: 18px;
            color: var(--text-body);
            font-weight: 500;
            border: 1px solid transparent;
        }
        .mobile-menu-links a:hover,
        .mobile-menu-links a.active {
            background: var(--brand-light);
            color: var(--brand);
            border-color: rgba(37, 99, 235, 0.1);
        }
        .mobile-menu-cta {
            margin-top: 24px;
        }
        /* ===== Hero ===== */
        .hero {
            padding: 160px 0 80px;
            background: linear-gradient(180deg, #F0F7FF 0%, #FFFFFF 100%);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(circle at 1px 1px, rgba(37, 99, 235, 0.07) 1px, transparent 0);
            background-size: 22px 22px;
            pointer-events: none;
        }
        .hero-inner {
            display: grid;
            grid-template-columns: 55% 45%;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--border);
            border-left: 3px solid var(--brand);
            color: var(--brand);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 8px;
            margin-bottom: 20px;
            box-shadow: var(--shadow-card);
        }
        .hero-text h1 {
            font-size: 48px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        .hero-text h1 .highlight {
            color: var(--brand);
            position: relative;
        }
        .hero-sub {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 480px;
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .hero-note {
            font-size: 13px;
            color: #94a3b8;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .hero-visual {
            position: relative;
        }
        .hero-visual img {
            border-radius: 20px;
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border);
            width: 100%;
            height: 320px;
            object-fit: cover;
        }
        .hero-visual-deco {
            position: absolute;
            top: -12px;
            right: -12px;
            width: 100%;
            height: 100%;
            border: 2px dashed var(--brand);
            border-radius: 24px;
            z-index: -1;
            opacity: 0.25;
        }
        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 15px;
            border: 1px solid transparent;
            transition: all 0.2s ease;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--brand);
            color: #fff;
            border-color: var(--brand);
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: #fff;
            color: var(--brand);
            border-color: var(--brand);
        }
        .btn-outline:hover {
            background: var(--brand-light);
            color: var(--brand-dark);
            border-color: var(--brand-dark);
        }
        .btn-lg {
            padding: 14px 36px;
            font-size: 16px;
        }
        /* ===== Pain Cards ===== */
        .pain-section {
            background: #fff;
        }
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .pain-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            transition: all 0.2s ease;
            position: relative;
            overflow: hidden;
        }
        .pain-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--brand);
            opacity: 0;
            transition: all 0.2s ease;
        }
        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(37, 99, 235, 0.25);
        }
        .pain-card:hover::after {
            opacity: 1;
        }
        .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--brand-light);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }
        .pain-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .pain-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }
        /* ===== Solution Cards ===== */
        .solution-section {
            background: var(--bg);
        }
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }
        .solution-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            position: relative;
            overflow: hidden;
            transition: all 0.2s ease;
            box-shadow: var(--shadow-card);
        }
        .solution-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--brand);
            transition: all 0.2s ease;
        }
        .solution-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(37, 99, 235, 0.3);
        }
        .solution-card:hover::before {
            background: var(--accent);
        }
        .solution-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--brand-light);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }
        .solution-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .solution-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 20px;
        }
        .text-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .text-link i {
            font-size: 12px;
            transition: transform 0.2s ease;
        }
        .text-link:hover {
            color: var(--brand-dark);
        }
        .text-link:hover i {
            transform: translateX(4px);
        }
        /* ===== Content Blocks ===== */
        .content-blocks {
            background: #fff;
        }
        .content-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            margin-bottom: 88px;
        }
        .content-row:last-child {
            margin-bottom: 0;
        }
        .content-media {
            position: relative;
            padding: 16px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 20px;
            box-shadow: var(--shadow-card);
        }
        .content-media::before {
            content: '';
            position: absolute;
            top: 8px;
            left: 8px;
            right: -8px;
            bottom: -8px;
            border: 2px dashed rgba(37, 99, 235, 0.2);
            border-radius: 20px;
            z-index: 0;
        }
        .content-media img {
            border-radius: 14px;
            position: relative;
            z-index: 1;
            width: 100%;
            height: 280px;
            object-fit: cover;
        }
        .content-text h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .content-text p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 20px;
        }
        .check-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 20px;
        }
        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text-body);
        }
        .check-list li i {
            color: var(--success);
            margin-top: 4px;
            font-size: 14px;
            background: rgba(16, 185, 129, 0.1);
            width: 20px;
            height: 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        /* ===== Stats ===== */
        .stats-section {
            background: var(--bg);
        }
        .stats-box {
            display: flex;
            align-items: center;
            justify-content: space-around;
            background: #EEF2FF;
            border-radius: 24px;
            padding: 48px 40px;
            border: 1px solid rgba(37, 99, 235, 0.08);
        }
        .stat-item {
            text-align: center;
            padding: 0 32px;
            position: relative;
            flex: 1;
        }
        .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 48px;
            background: var(--border);
        }
        .stat-num {
            font-size: 42px;
            font-weight: 700;
            color: var(--brand);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
        }
        /* ===== Process ===== */
        .process-section {
            background: #fff;
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .process-step {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            position: relative;
            transition: all 0.2s ease;
        }
        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(37, 99, 235, 0.25);
        }
        .step-num {
            font-size: 36px;
            font-weight: 700;
            color: var(--brand);
            opacity: 0.25;
            display: block;
            margin-bottom: 12px;
            font-variant-numeric: tabular-nums;
            line-height: 1;
        }
        .process-step h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            background: #fff;
            border-radius: 20px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            transition: all 0.2s ease;
            gap: 16px;
        }
        .faq-question:hover {
            background: #F8FAFC;
            color: var(--brand);
        }
        .faq-question i {
            font-size: 14px;
            color: var(--brand);
            flex-shrink: 0;
            transition: transform 0.2s ease;
            background: var(--brand-light);
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-item.open .faq-question i {
            transform: rotate(45deg);
            background: var(--brand);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer p {
            padding: 0 28px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        /* ===== CTA ===== */
        .cta-section {
            background: #fff;
        }
        .cta-box {
            background: linear-gradient(135deg, #EEF2FF 0%, #F8FAFC 100%);
            border: 1px solid var(--border);
            border-radius: 28px;
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 120px;
            height: 120px;
            border: 2px dashed var(--brand);
            border-radius: 50%;
            opacity: 0.25;
        }
        .cta-box h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 14px;
        }
        .cta-box p {
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 32px;
        }
        .cta-privacy {
            display: block;
            margin-top: 16px;
            font-size: 12px;
            color: #94a3b8;
        }
        /* ===== Footer ===== */
        .footer {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 64px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .footer-logo i {
            color: var(--brand);
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
            margin-bottom: 20px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            border: 1px solid var(--border);
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 16px;
        }
        .footer-social a:hover {
            background: var(--brand-light);
            color: var(--brand);
            border-color: rgba(37, 99, 235, 0.3);
            transform: translateY(-2px);
        }
        .footer-col h3 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: 0.05em;
            position: relative;
            padding-bottom: 12px;
        }
        .footer-col h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--brand);
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
        }
        .footer-col ul li a:hover {
            color: var(--brand);
            padding-left: 4px;
        }
        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .footer-contact-item i {
            color: var(--brand);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--brand);
        }
        /* ===== Modal ===== */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.5);
            z-index: 300;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 24px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.25s ease;
        }
        .modal-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        .modal-card {
            background: #fff;
            border-radius: 20px;
            max-width: 480px;
            width: 100%;
            padding: 32px;
            position: relative;
            transform: translateY(20px);
            transition: transform 0.3s ease;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
        }
        .modal-overlay.active .modal-card {
            transform: translateY(0);
        }
        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--bg);
            border: none;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            font-size: 18px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .modal-close:hover {
            background: #fee2e2;
            color: var(--error);
        }
        .modal-card h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .modal-card>p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            height: 44px;
            border: 1px solid #CBD5E1;
            border-radius: 10px;
            padding: 0 14px;
            font-size: 15px;
            outline: none;
            transition: all 0.2s ease;
            background: #fff;
            color: var(--text-main);
        }
        .form-group textarea {
            height: auto;
            padding: 12px 14px;
            resize: vertical;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
        }
        .modal-submit {
            width: 100%;
            background: var(--brand);
            color: #fff;
            border: none;
            border-radius: 12px;
            padding: 14px;
            font-size: 15px;
            font-weight: 600;
            margin-top: 8px;
            box-shadow: var(--shadow-btn);
            transition: all 0.2s ease;
        }
        .modal-submit:hover {
            background: var(--brand-dark);
            transform: translateY(-1px);
        }
        .privacy-note {
            text-align: center;
            font-size: 12px;
            color: #94a3b8;
            margin-top: 16px;
        }
        .privacy-note a {
            color: var(--text-muted);
            text-decoration: underline;
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .dock-links a {
                padding: 8px 12px;
                font-size: 14px;
            }
            .dock-cta {
                padding: 10px 16px;
                font-size: 13px;
            }
            .hero-text h1 {
                font-size: 38px;
            }
            .pain-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
            .footer-col:last-child {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
            .dock-links,
            .dock-cta {
                display: none;
            }
            .dock-burger {
                display: block;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-text h1 {
                font-size: 32px;
            }
            .hero-visual img {
                height: 240px;
            }
            .solution-grid {
                grid-template-columns: 1fr;
            }
            .content-row {
                grid-template-columns: 1fr;
                gap: 32px;
                margin-bottom: 64px;
            }
            .content-row:nth-child(2) .content-media {
                order: -1;
            }
            .stats-box {
                flex-wrap: wrap;
                gap: 24px;
            }
            .stat-item {
                flex: 0 0 calc(50% - 24px);
                padding: 0 16px;
            }
            .stat-item:nth-child(2)::after {
                display: none;
            }
            .stat-num {
                font-size: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero {
                padding: 140px 0 56px;
            }
            .hero-text h1 {
                font-size: 28px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .pain-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .content-text h2 {
                font-size: 22px;
            }
            .content-media img {
                height: 200px;
            }
            .stats-box {
                padding: 24px;
            }
            .stat-item {
                flex: 0 0 100%;
                padding: 16px 0;
            }
            .stat-item::after {
                display: none;
            }
            .cta-box {
                padding: 40px 24px;
            }
            .cta-box h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-col {
                display: block;
            }
            .footer-col:last-child {
                display: block;
            }
            .modal-card {
                padding: 24px;
            }
        }