<style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', 'PingFang SC', Roboto, 'Helvetica Neue', sans-serif;
            background-color: #fff;
            color: #1f2d3d;
            line-height: 1.5;
        }

        /* 红色主色调 */
        :root {
            --primary-red: #e34b2b;
            --primary-dark: #c23a1c;
            --light-bg: #fef6f3;
            --gray-light: #f5f7fa;
            --text-dark: #1e2a3e;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 头部 */
        .header {
            background: #fff;
            box-shadow: 0 2px 12px rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .nav-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            padding: 16px 0;
        }
        .logo h1 {
            font-size: 28px;
            font-weight: 700;
            margin: 0;
        }
        .logo a {
            text-decoration: none;
            color: var(--primary-red);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo-icon {
            font-size: 32px;
            font-weight: bold;
            background: var(--primary-red);
            color: white;
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
        }
        .nav-links {
            display: flex;
            gap: 32px;
            list-style: none;
        }
        .nav-links a {
            text-decoration: none;
            font-weight: 500;
            color: #2c3e50;
            transition: color 0.2s;
        }
        .nav-links a:hover, .nav-links a.active {
            color: var(--primary-red);
        }
        /* 按钮 */
        .btn-primary {
            background: var(--primary-red);
            color: white;
            border: none;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: inline-block;
            text-decoration: none;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
        }
        .btn-outline {
            border: 1px solid var(--primary-red);
            background: transparent;
            color: var(--primary-red);
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
            text-decoration: none;
            display: inline-block;
        }
        /* 下载英雄区 */
        .hero-download {
            background: linear-gradient(135deg, #fff2ed 0%, #ffe8e1 100%);
            padding: 70px 0;
            text-align: center;
        }
        .stats-grid {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .stat-card {
            background: white;
            padding: 20px 32px;
            border-radius: 32px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.05);
            min-width: 180px;
        }
        .star-rating {
            color: #f5b042;
            font-size: 20px;
        }
        /* 通用卡片 */
        .section {
            padding: 70px 0;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 48px;
            color: var(--text-dark);
        }
        .ai-content {
            background: var(--light-bg);
            border-radius: 48px;
            padding: 48px;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            align-items: flex-start;
        }
        .ai-text {
            flex: 2;
            text-align: left;
        }
        .ai-text p {
            margin-bottom: 18px;
            line-height: 1.7;
        }
        .icon-cards {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .icon-card {
            background: white;
            padding: 20px;
            border-radius: 24px;
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.03);
        }
        .platform-grid, .reason-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 30px;
            margin-top: 20px;
        }
        .platform-card, .reason-card {
            background: white;
            border-radius: 24px;
            padding: 28px 20px;
            text-align: center;
            box-shadow: 0 8px 24px rgba(0,0,0,0.05);
            transition: transform 0.2s;
        }
        .faq-item {
            background: #fff;
            border: 1px solid #eaeef2;
            border-radius: 20px;
            margin-bottom: 16px;
            overflow: hidden;
        }
        .faq-question {
            background: #f9fafc;
            padding: 18px 24px;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background: white;
            border-top: 0px solid #eee;
        }
        .faq-item.open .faq-answer {
            padding: 20px 24px;
            max-height: 500px;
            border-top: 1px solid #edf2f7;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .news-item {
            display: flex;
            justify-content: space-between;
            border-bottom: 1px solid #edf2f7;
            padding-bottom: 12px;
        }
        .footer {
            background: #1e2a3e;
            color: #cddfe7;
            padding: 48px 0 24px;
        }
        .footer a {
            color: #cddfe7;
            text-decoration: none;
        }
        .keyword-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin: 24px 0;
        }
        .keyword-cloud span {
            background: rgba(255,255,255,0.12);
            padding: 6px 14px;
            border-radius: 40px;
            font-size: 13px;
        }
        @media (max-width: 768px) {
            .nav-bar {
                flex-direction: column;
                gap: 12px;
            }
            .stats-grid {
                gap: 20px;
            }
            .ai-content {
                padding: 28px;
            }
        }
    </style>