:root {
        --primary-color: #F1302B;
        --text-color: #222222;
        --bg-light: #f9f9f9;
        --border-color: #e5e5e5;
        --transition: all 0.3s ease;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif; line-height: 1.6; color: var(--text-color); padding: 15px; }
    .product-container { max-width: 1200px; margin: 0 auto; }
    
    h2.section-title { font-size: 24px; color: var(--text-color); text-align: center; margin: 40px 0 20px; position: relative; padding-bottom: 10px; text-transform: uppercase; letter-spacing: 1px; }
    h2.section-title::after { content: ''; width: 40px; height: 3px; background-color: var(--primary-color); position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); }

    /* 图片悬浮效果 */
    .img-zoom { overflow: hidden; border-radius: 4px; }
    .img-zoom img { transition: transform 0.5s ease; width: 100%; display: block; }
    .img-zoom:hover img { transform: scale(1.05); }

    .hero-section { display: flex; flex-direction: column; gap: 20px; margin-bottom: 40px; }
    .hero-text { background-color: var(--bg-light); padding: 25px; border-radius: 4px; border-left: 4px solid var(--primary-color); transition: var(--transition); }
    .hero-text:hover { background-color: #f1f1f1; box-shadow: 0 5px 15px rgba(0,0,0,0.1); }

    /* 表格交互 */
    .table-responsive { border: 1px solid var(--border-color); border-radius: 4px; overflow: hidden; margin-bottom: 40px; }
    table { width: 100%; border-collapse: collapse; }
    th, td { padding: 14px 15px; border-bottom: 1px solid var(--border-color); transition: var(--transition); }
    th { background-color: #111111; color: white; text-transform: uppercase; font-size: 13px; }
    tr:hover td { background-color: #fff4f4; cursor: default; }

    /* 特性卡片交互 */
    .features-grid { display: grid; grid-template-columns: 1fr; gap: 15px; margin-bottom: 40px; }
    .feature-item { background: var(--bg-light); padding: 20px; border-radius: 4px; border: 1px solid transparent; transition: var(--transition); }
    .feature-item:hover { border-color: var(--primary-color); transform: translateY(-5px); box-shadow: 0 8px 20px rgba(0,0,0,0.08); }

    /* 组件卡片交互 */
    .components-list { list-style: none; display: grid; gap: 20px; }
    .component-card { border: 1px solid var(--border-color); padding: 15px; transition: var(--transition); }
    .component-card:hover { border-color: var(--primary-color); box-shadow: 0 8px 20px rgba(0,0,0,0.1); }

    @media (min-width: 768px) {
        .hero-section { flex-direction: row; align-items: stretch; }
        .hero-img { width: 50%; }
        .hero-text { width: 50%; }
        .features-grid { grid-template-columns: repeat(2, 1fr); }
        .components-list { grid-template-columns: repeat(3, 1fr); }
    }