/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #8B5E3C;
            --primary-dark: #6B4226;
            --primary-light: #A87A56;
            --accent: #C9A87C;
            --accent-light: #E8D5B7;
            --dark: #1F1A15;
            --text: #2D251E;
            --text-light: #6B6158;
            --bg: #FAF7F2;
            --bg-alt: #F0EAE1;
            --bg-dark: #201913;
            --white: #FFFFFF;
            --border: #E5DBCC;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(107, 66, 38, 0.06);
            --shadow: 0 8px 28px rgba(107, 66, 38, 0.09);
            --shadow-hover: 0 14px 44px rgba(107, 66, 38, 0.16);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --container: 1200px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 14px;
            color: var(--text);
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航 - 悬浮胶囊 ===== */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 100;
            padding: 0 20px;
        }
        .nav-container {
            max-width: var(--container);
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 60px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 18px 10px 24px;
            transition: var(--transition);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            min-width: 0;
        }
        .logo-icon {
            font-size: 24px;
            line-height: 1;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .logo-text {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 320px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-light);
            padding: 8px 18px;
            border-radius: 40px;
        }
        .nav-link:hover,
        .nav-link.active {
            color: var(--primary-dark);
            background: var(--accent-light);
        }
        .nav-btn {
            font-size: 14px;
            font-weight: 600;
            color: var(--white);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            padding: 9px 20px;
            border-radius: 40px;
            box-shadow: 0 4px 14px rgba(107, 66, 38, 0.3);
        }
        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(107, 66, 38, 0.38);
        }
        .nav-btn:active {
            transform: translateY(0);
        }
        .nav-btn:focus-visible,
        .nav-link:focus-visible {
            outline: 3px solid rgba(201, 168, 124, 0.6);
            outline-offset: 2px;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 100px 0 90px;
            background: var(--bg-dark);
            background-image: linear-gradient(rgba(32, 25, 19, 0.78), rgba(32, 25, 19, 0.86)), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            color: var(--white);
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: 0;
            right: 0;
            height: 80px;
            background: var(--bg);
            border-radius: 50% 50% 0 0 / 100% 100% 0 0;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 56px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 168, 124, 0.18);
            border: 1px solid rgba(201, 168, 124, 0.35);
            color: var(--accent-light);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 40px;
            margin-bottom: 22px;
            letter-spacing: 0.04em;
        }
        .hero-tag span {
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .hero h1 {
            font-size: 42px;
            line-height: 1.28;
            font-weight: 800;
            letter-spacing: 0.01em;
            margin-bottom: 18px;
            color: var(--white);
        }
        .hero h1 em {
            font-style: normal;
            color: var(--accent);
        }
        .hero-desc {
            font-size: 16px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.82);
            max-width: 540px;
            margin-bottom: 28px;
        }
        .hero-data {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-bottom: 30px;
        }
        .hero-data-item {
            display: flex;
            flex-direction: column;
        }
        .hero-data-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-data-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 2px;
        }
        .hero-form-card {
            background: rgba(255, 255, 255, 0.98);
            border-radius: 24px;
            padding: 30px 28px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            color: var(--text);
        }
        .hero-form-card h2 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
        .hero-form-card p {
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 20px;
        }
        .form-group {
            margin-bottom: 14px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .form-group select,
        .form-group input {
            width: 100%;
            padding: 12px 14px;
            border: 1.5px solid var(--border);
            border-radius: 10px;
            background: var(--white);
            font-size: 14px;
            transition: var(--transition);
            appearance: auto;
        }
        .form-group select:focus,
        .form-group input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(139, 94, 60, 0.15);
        }
        .hero-form-card button {
            width: 100%;
            padding: 14px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--white);
            font-size: 15px;
            font-weight: 700;
            border-radius: 10px;
            margin-top: 8px;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(107, 66, 38, 0.3);
        }
        .hero-form-card button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(107, 66, 38, 0.4);
        }
        .form-privacy {
            font-size: 12px;
            color: var(--text-light);
            text-align: center;
            margin-top: 12px;
            line-height: 1.5;
        }

        /* ===== 通用 Section ===== */
        .section {
            padding: 88px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-head {
            margin-bottom: 48px;
            max-width: 720px;
        }
        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-head h2 span {
            color: var(--primary);
        }
        .section-head p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.75;
        }

        /* ===== 最新动态 ===== */
        .news-section {
            padding: 88px 0;
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .news-post {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .news-post:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }
        .news-post img {
            width: 100%;
            height: 230px;
            object-fit: cover;
        }
        .news-post-body {
            padding: 24px;
        }
        .news-post-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .news-post-body h3 a:hover {
            color: var(--primary);
        }
        .news-post-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.65;
        }
        .news-meta {
            display: flex;
            gap: 14px;
            font-size: 12px;
            color: var(--text-light);
            margin-bottom: 10px;
        }
        .timeline {
            position: relative;
            padding-left: 24px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 6px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: linear-gradient(to bottom, var(--accent), var(--primary-light), transparent);
        }
        .timeline-item {
            position: relative;
            padding: 0 0 28px 20px;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -22px;
            top: 6px;
            width: 12px;
            height: 12px;
            background: var(--accent);
            border: 3px solid var(--bg);
            border-radius: 50%;
            box-shadow: 0 0 0 2px var(--accent);
        }
        .timeline-date {
            font-size: 12px;
            color: var(--text-light);
            letter-spacing: 0.03em;
            margin-bottom: 4px;
        }
        .timeline-item h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
            line-height: 1.45;
        }
        .timeline-item h4 a:hover {
            color: var(--primary);
        }
        .timeline-item p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== 快速解答 FAQ ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow);
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 20px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            background: var(--white);
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--accent-light);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
            transition: var(--transition);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: var(--white);
        }
        .faq-answer {
            padding: 0 22px 22px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.75;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== 核心特色 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 34px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--primary));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-8px);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--accent-light);
            color: var(--primary-dark);
            font-size: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 22px;
        }
        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== 资讯板块 ===== */
        .insights-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: start;
        }
        .insight-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .insight-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: var(--transition);
        }
        .insight-item:hover {
            box-shadow: var(--shadow);
            border-color: var(--accent);
            transform: translateX(4px);
        }
        .insight-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            min-width: 40px;
            text-align: center;
            padding-top: 4px;
        }
        .insight-content h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .insight-content h4 a:hover {
            color: var(--primary);
        }
        .insight-content p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }
        .insight-tag {
            display: inline-block;
            font-size: 11px;
            background: var(--accent-light);
            color: var(--primary-dark);
            padding: 3px 10px;
            border-radius: 30px;
            margin-top: 8px;
            font-weight: 600;
        }
        .sidebar-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            margin-bottom: 18px;
        }
        .sidebar-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .sidebar-card-body {
            padding: 22px;
        }
        .sidebar-card-body h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .sidebar-card-body p {
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 14px;
            line-height: 1.65;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            font-size: 12px;
            padding: 5px 12px;
            background: var(--bg-alt);
            border-radius: 30px;
            color: var(--text-light);
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .tag-cloud a:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            border-color: var(--accent);
        }

        /* ===== 安全体系 ===== */
        .safety-section {
            background: var(--bg-dark);
            color: var(--white);
            position: relative;
            overflow: hidden;
        }
        .safety-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(201, 168, 124, 0.18), transparent 70%);
            pointer-events: none;
        }
        .safety-section .section-head h2 {
            color: var(--white);
        }
        .safety-section .section-head p {
            color: rgba(255, 255, 255, 0.65);
        }
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            z-index: 2;
        }
        .safety-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            transition: var(--transition);
        }
        .safety-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
            border-color: rgba(201, 168, 124, 0.4);
        }
        .safety-icon {
            font-size: 32px;
            margin-bottom: 16px;
            line-height: 1;
        }
        .safety-item h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--accent-light);
        }
        .safety-item p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
        }

        /* ===== 用户口碑 ===== */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .review-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border);
            position: relative;
            transition: var(--transition);
        }
        .review-card::before {
            content: '\201C';
            position: absolute;
            top: 12px;
            right: 22px;
            font-size: 64px;
            line-height: 1;
            color: var(--accent-light);
            font-family: Georgia, serif;
        }
        .review-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }
        .review-stars {
            color: var(--accent);
            font-size: 14px;
            letter-spacing: 3px;
            margin-bottom: 14px;
        }
        .review-text {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text);
            margin-bottom: 20px;
        }
        .review-user {
            display: flex;
            align-items: center;
            gap: 10px;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }
        .review-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
        }
        .review-name {
            font-size: 14px;
            font-weight: 600;
        }
        .review-meta {
            font-size: 12px;
            color: var(--text-light);
        }

        /* ===== App / 移动端 ===== */
        .app-banner {
            background: linear-gradient(135deg, var(--primary-dark), var(--dark));
            border-radius: 28px;
            padding: 50px 48px;
            position: relative;
            overflow: hidden;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
            color: var(--white);
        }
        .app-banner::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(201, 168, 124, 0.25), transparent 70%);
        }
        .app-banner h3 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .app-banner p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .app-points {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 24px;
        }
        .app-point {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.1);
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 13px;
            color: var(--accent-light);
        }
        .app-point::before {
            content: '✓';
            font-weight: 700;
        }
        .app-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .app-btn {
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            background: var(--accent);
            color: var(--dark);
            transition: var(--transition);
        }
        .app-btn:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
        }
        .app-btn-outline {
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            color: var(--white);
            transition: var(--transition);
        }
        .app-btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .app-visual {
            text-align: center;
            position: relative;
            z-index: 2;
        }
        .app-visual img {
            border-radius: 20px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
            max-height: 260px;
            width: auto;
            margin: 0 auto;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 40px 0 110px;
        }
        .cta-box {
            background: linear-gradient(135deg, var(--accent-light), #f5e6d0);
            border-radius: 28px;
            padding: 48px 50px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
        }
        .cta-box h3 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 6px;
        }
        .cta-box p {
            font-size: 14px;
            color: var(--text-light);
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: var(--white);
            font-size: 15px;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 40px;
            box-shadow: 0 6px 20px rgba(139, 94, 60, 0.35);
            transition: var(--transition);
        }
        .cta-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(139, 94, 60, 0.45);
        }
        .cta-btn:active {
            transform: translateY(0);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.6);
            padding: 48px 0 30px;
            font-size: 14px;
        }
        .footer-top {
            display: flex;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand .logo-text {
            color: var(--white);
            font-size: 18px;
            font-weight: 700;
        }
        .footer-brand p {
            margin-top: 12px;
            font-size: 13px;
            max-width: 340px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-tagline {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            margin-top: 14px;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .footer-tagline a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 26px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 浮动转化条 ===== */
        .float-cta {
            position: fixed;
            bottom: 24px;
            left: 50%;
            transform: translateX(-50%) translateY(80px);
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 12px 12px 12px 22px;
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
            z-index: 200;
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .float-cta.visible {
            transform: translateX(-50%) translateY(0);
        }
        .float-cta span {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            white-space: nowrap;
        }
        .float-cta a {
            background: var(--primary);
            color: var(--white);
            font-size: 13px;
            font-weight: 600;
            padding: 9px 20px;
            border-radius: 40px;
            white-space: nowrap;
        }
        .float-cta a:hover {
            background: var(--primary-dark);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .safety-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .insights-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .news-layout {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .app-banner {
                grid-template-columns: 1fr;
                padding: 40px 30px;
            }
            .app-visual {
                display: none;
            }
            .cta-box {
                padding: 36px 30px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
            .news-section {
                padding: 64px 0;
            }
            .hero {
                padding: 80px 0 70px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .hero-form-card {
                padding: 24px 20px;
            }
            .nav-container {
                padding: 8px 16px;
            }
            .logo-text {
                max-width: 160px;
                font-size: 13px;
            }
            .nav-link {
                display: none;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .safety-grid {
                grid-template-columns: 1fr;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .timeline {
                padding-left: 20px;
            }
            .cta-box {
                flex-direction: column;
                text-align: center;
            }
            .app-banner h3 {
                font-size: 22px;
            }
            .app-actions {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .site-header {
                top: 10px;
                padding: 0 10px;
            }
            .logo-text {
                max-width: 130px;
                font-size: 12px;
            }
            .nav-btn {
                font-size: 12px;
                padding: 8px 14px;
            }
            .hero h1 {
                font-size: 22px;
            }
            .hero-desc {
                font-size: 14px;
            }
            .hero-data {
                gap: 18px;
            }
            .hero-data-num {
                font-size: 22px;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .news-post-body h3 {
                font-size: 18px;
            }
            .faq-question {
                font-size: 14px;
                padding: 16px 14px;
            }
            .faq-answer {
                padding: 0 14px 16px;
                font-size: 13px;
            }
            .feature-card {
                padding: 26px 20px;
            }
            .review-card {
                padding: 24px 20px;
            }
            .float-cta {
                width: calc(100% - 32px);
                max-width: 420px;
                justify-content: space-between;
            }
            .float-cta span {
                font-size: 13px;
            }
            .footer-top {
                flex-direction: column;
                gap: 24px;
            }
            .app-banner {
                padding: 32px 24px;
                border-radius: 20px;
            }
            .cta-box {
                padding: 28px 20px;
            }
            .cta-btn {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 焦点状态 ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(139, 94, 60, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: index */
:root {
            --primary: #173e2e;
            --primary-light: #2b5d45;
            --primary-bg: #e8efe9;
            --accent: #c8a46e;
            --accent-dark: #a98348;
            --accent-light: #f3e9d9;
            --bg: #f8f5f0;
            --bg-white: #ffffff;
            --bg-dark: #11251d;
            --text: #2a2a2a;
            --text-light: #6e6e6e;
            --text-white: #f5f8f5;
            --border: #e4dccc;
            --border-light: #f0eade;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.10);
            --transition: 0.3s ease;
            --container: 1200px;
            --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }
        ul {
            list-style: none;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 96px 0;
        }
        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }
        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text);
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
            margin-top: 12px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition);
            line-height: 1;
            border: 2px solid transparent;
            justify-content: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(23, 62, 46, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 164, 110, 0.3);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-light {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
            backdrop-filter: blur(4px);
        }
        .btn-light:hover {
            background: rgba(255, 255, 255, 0.25);
            border-color: rgba(255, 255, 255, 0.7);
            transform: translateY(-2px);
        }

        /* ===== Header Nav ===== */
        .site-header {
            position: fixed;
            top: 20px;
            left: 0;
            right: 0;
            z-index: 100;
            pointer-events: none;
        }
        .nav-wrap {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 20px;
            pointer-events: auto;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-radius: 60px;
            padding: 12px 28px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.6);
        }
        .nav-logo {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-logo i {
            color: var(--accent);
            font-size: 20px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
        }
        .nav-links a:hover,
        .nav-links a.active {
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-cta .btn {
            padding: 10px 22px;
            font-size: 14px;
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 18px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 180px 0 100px;
            background: linear-gradient(135deg, rgba(23, 62, 46, 0.92), rgba(23, 62, 46, 0.78)), url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            color: #fff;
            min-height: 720px;
            display: flex;
            align-items: center;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: center;
        }
        .hero-content .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.03em;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero-content .hero-badge i {
            color: var(--accent);
            margin-right: 6px;
        }
        .hero-content h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 20px;
            color: #fff;
        }
        .hero-content .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.9);
            max-width: 480px;
            margin-bottom: 30px;
        }
        .hero-cta-row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .hero-stats {
            display: flex;
            gap: 36px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 24px;
        }
        .hero-stat .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 4px;
        }

        .hero-form-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
            color: var(--text);
        }
        .hero-form-card h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .hero-form-card p {
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 24px;
            line-height: 1.6;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }
        .form-group input,
        .form-group select {
            width: 100%;
            padding: 13px 16px;
            border: 1.5px solid var(--border);
            border-radius: 10px;
            background: #fafaf7;
            font-size: 15px;
            color: var(--text);
            transition: all var(--transition);
        }
        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--accent);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(200, 164, 110, 0.15);
        }
        .hero-form-card .btn {
            width: 100%;
            margin-top: 4px;
        }
        .form-note {
            font-size: 12px;
            color: var(--text-light);
            text-align: center;
            margin-top: 16px;
            line-height: 1.5;
        }

        /* ===== 最新动态 ===== */
        .news-section {
            background: var(--bg-white);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .news-card {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .news-card .news-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 20px;
        }
        .news-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
            line-height: 1.4;
        }
        .news-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 18px;
            font-size: 13px;
            color: var(--text-light);
        }
        .news-card .news-meta i {
            color: var(--accent);
        }
        .news-card .news-meta .badge {
            background: var(--accent-light);
            color: var(--accent-dark);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }

        /* ===== 卖点三连 ===== */
        .feature-section {
            background: var(--bg);
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
        }
        .feature-card .feature-icon {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin: 0 auto 24px;
            box-shadow: 0 8px 24px rgba(23, 62, 46, 0.2);
        }
        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text);
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ===== 快速解答 ===== */
        .faq-section {
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            background: var(--bg-white);
            padding: 30px 32px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-q {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }
        .faq-q .q-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
        }
        .faq-a {
            padding-left: 46px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ===== 资讯区 ===== */
        .info-section {
            background: var(--bg);
        }
        .info-layout {
            display: grid;
            grid-template-columns: 1.4fr 0.6fr;
            gap: 40px;
        }
        .info-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .info-item {
            display: flex;
            gap: 20px;
            padding: 28px;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
        }
        .info-item:last-child {
            border-bottom: none;
        }
        .info-item:hover {
            background: var(--accent-light);
        }
        .info-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--accent);
            font-style: italic;
            min-width: 40px;
            line-height: 1;
            padding-top: 4px;
        }
        .info-item-content h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
            line-height: 1.4;
        }
        .info-item-content h3:hover {
            color: var(--accent-dark);
        }
        .info-item-content p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .info-item-tag {
            display: inline-block;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 12px;
            padding: 4px 14px;
            border-radius: 20px;
            margin-top: 10px;
            font-weight: 500;
        }

        .info-side {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .side-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .side-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-card h3 i {
            color: var(--accent);
        }
        .side-rank {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .side-rank-item {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .side-rank-item .rank-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .side-rank-item .rank-num.top {
            background: var(--accent);
            color: #fff;
        }
        .side-rank-item span {
            font-size: 14px;
            color: var(--text);
            font-weight: 500;
        }
        .side-pick {
            margin-top: 20px;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-light);
            cursor: pointer;
            transition: all var(--transition);
        }
        .side-pick:hover {
            box-shadow: var(--shadow-md);
        }
        .side-pick img {
            width: 100%;
            height: 120px;
            object-fit: cover;
        }
        .side-pick .pick-info {
            padding: 16px;
        }
        .side-pick .pick-info strong {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            display: block;
        }
        .side-pick .pick-info small {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 4px;
            display: block;
        }

        /* ===== 安全体系 ===== */
        .safety-section {
            background: var(--bg-dark);
            color: #e8f0eb;
            position: relative;
            overflow: hidden;
        }
        .safety-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.12;
        }
        .safety-section .container {
            position: relative;
            z-index: 2;
        }
        .safety-section .section-title {
            color: #fff;
        }
        .safety-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-top: 48px;
        }
        .safety-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 32px;
            transition: all var(--transition);
            backdrop-filter: blur(4px);
        }
        .safety-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-4px);
        }
        .safety-card .safety-icon {
            width: 58px;
            height: 58px;
            border-radius: 16px;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }
        .safety-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .safety-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
        }

        /* ===== App ===== */
        .app-section {
            background: var(--bg-white);
            overflow: hidden;
        }
        .app-layout {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 60px;
            align-items: center;
        }
        .app-content h2 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 20px;
        }
        .app-content p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .app-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 36px;
        }
        .app-feature {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
        }
        .app-feature i {
            color: var(--accent-dark);
            font-size: 18px;
        }
        .app-download {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .app-download-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 14px 24px;
            background: var(--bg-dark);
            color: #fff;
            border-radius: 14px;
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
            border: 1px solid var(--bg-dark);
        }
        .app-download-btn:hover {
            background: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(23, 62, 46, 0.3);
        }
        .app-download-btn i {
            font-size: 24px;
        }
        .app-download-btn small {
            display: block;
            font-size: 12px;
            font-weight: 400;
            opacity: 0.8;
        }
        .app-showcase {
            position: relative;
        }
        .app-showcase .mockup {
            border-radius: 30px;
            border: 8px solid var(--bg-dark);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            transform: rotate(2deg);
            transition: transform var(--transition);
        }
        .app-showcase .mockup:hover {
            transform: rotate(0deg);
        }
        .app-showcase .mockup img {
            width: 100%;
            height: auto;
        }
        .app-showcase .mockup2 {
            position: absolute;
            bottom: -30px;
            right: -10px;
            width: 60%;
            border-radius: 20px;
            border: 6px solid var(--bg-dark);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            transform: rotate(-3deg);
            transition: transform var(--transition);
        }
        .app-showcase .mockup2:hover {
            transform: rotate(0deg);
        }

        /* ===== 浮动转化条 ===== */
        .floating-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 99;
            background: rgba(23, 62, 46, 0.95);
            backdrop-filter: blur(10px);
            color: #fff;
            padding: 16px 24px;
            transform: translateY(100%);
            transition: transform 0.4s ease;
            box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15);
        }
        .floating-cta.visible {
            transform: translateY(0);
        }
        .floating-cta .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }
        .floating-cta .cta-text {
            font-size: 16px;
            font-weight: 600;
            flex: 1;
            min-width: 220px;
        }
        .floating-cta .cta-text i {
            color: var(--accent);
            margin-right: 8px;
        }
        .floating-cta .cta-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }
        .floating-cta .cta-form input {
            padding: 10px 18px;
            border-radius: 50px;
            border: none;
            font-size: 14px;
            min-width: 220px;
            background: rgba(255, 255, 255, 0.9);
        }
        .floating-cta .cta-form input:focus {
            box-shadow: 0 0 0 3px rgba(200, 164, 110, 0.3);
        }
        .floating-cta .cta-form .btn {
            padding: 10px 24px;
            font-size: 14px;
            white-space: nowrap;
        }
        .floating-cta .cta-close {
            background: transparent;
            color: rgba(255, 255, 255, 0.6);
            font-size: 20px;
            cursor: pointer;
            padding: 8px;
            border-radius: 50%;
            transition: all var(--transition);
        }
        .floating-cta .cta-close:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 70px 0 30px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.5fr 0.8fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            opacity: 0.8;
            margin-top: 16px;
            max-width: 360px;
        }
        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand .footer-logo i {
            color: var(--accent);
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 28px;
            text-align: center;
            font-size: 13px;
            opacity: 0.6;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 48px;
            }
            .hero {
                padding: 160px 0 80px;
            }
            .hero-content h1 {
                font-size: 36px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                gap: 20px;
            }
            .info-layout {
                grid-template-columns: 1fr;
            }
            .safety-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .app-layout {
                grid-template-columns: 1fr;
                gap: 48px;
            }
            .app-showcase .mockup2 {
                right: 20px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
            .nav-cta .btn {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .hero {
                padding: 140px 0 60px;
                min-height: auto;
            }
            .hero-content h1 {
                font-size: 28px;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat .num {
                font-size: 24px;
            }
            .nav-bar {
                padding: 10px 18px;
                border-radius: 40px;
            }
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: calc(100% + 10px);
                left: 20px;
                right: 20px;
                background: #fff;
                border-radius: 20px;
                padding: 20px;
                box-shadow: var(--shadow-lg);
                border: 1px solid var(--border-light);
                gap: 4px;
            }
            .nav-links.open a {
                padding: 12px 20px;
                border-radius: 12px;
            }
            .nav-links.open a.active {
                background: var(--primary-bg);
                color: var(--primary);
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .faq-item {
                padding: 22px;
            }
            .faq-a {
                padding-left: 0;
            }
            .faq-q {
                align-items: flex-start;
            }
            .info-item {
                flex-direction: column;
                gap: 12px;
                padding: 22px;
            }
            .info-num {
                font-size: 20px;
            }
            .app-features {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .floating-cta .container {
                flex-direction: column;
                align-items: flex-start;
            }
            .floating-cta .cta-form {
                width: 100%;
            }
            .floating-cta .cta-form input {
                flex: 1;
                min-width: 0;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .hero {
                padding: 120px 0 48px;
            }
            .hero-content h1 {
                font-size: 24px;
            }
            .hero-content .hero-desc {
                font-size: 15px;
            }
            .hero-cta-row {
                flex-direction: column;
            }
            .hero-cta-row .btn {
                width: 100%;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .hero-form-card {
                padding: 28px 22px;
            }
            .nav-logo {
                font-size: 14px;
            }
            .nav-logo i {
                font-size: 16px;
            }
            .nav-bar {
                padding: 8px 14px;
            }
            .feature-card {
                padding: 30px 22px;
            }
            .faq-item {
                padding: 18px;
            }
            .info-item-content h3 {
                font-size: 16px;
            }
            .safety-card {
                padding: 26px 20px;
            }
            .app-content h2 {
                font-size: 24px;
            }
            .app-download {
                flex-direction: column;
            }
            .app-download-btn {
                justify-content: center;
            }
            .footer-top {
                gap: 24px;
            }
            .floating-cta .cta-text {
                font-size: 14px;
            }
        }