:root { --primary: #2d8a68; --bg: #f8fcfb; --text: #333; --light: #ffffff; }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; line-height: 1.6; color: var(--text); background: var(--bg); }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { background: var(--light); padding: 15px 0; border-bottom: 1px solid #eee; position: sticky; top: 0; z-index: 1000; }
        .nav-wrapper { display: flex; justify-content: space-between; align-items: center; }
        .nav-links { display: flex; gap: 0; align-items: center; }
        .nav-links a { padding: 0 15px; text-decoration: none; color: var(--text); font-weight: 500; }
        .hero { padding: 80px 0; text-align: center; background: linear-gradient(135deg, #e8f5e9, #ffffff); }
        .hero h1 { font-size: 2.5rem; margin-bottom: 20px; color: var(--primary); }
        .btn { display: inline-block; padding: 12px 30px; background: var(--primary); color: #fff; border-radius: 5px; text-decoration: none; margin-top: 20px; }
        section { padding: 60px 0; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
        .card { background: var(--light); padding: 30px; border-radius: 10px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); transition: 0.3s; }
        .card:hover { transform: translateY(-5px); box-shadow: 0 10px 15px rgba(0,0,0,0.1); }
        footer { background: #333; color: #fff; padding: 40px 0; text-align: center; }
        .faq-item { margin-bottom: 15px; border-bottom: 1px solid #ddd; }
        .faq-q { cursor: pointer; padding: 15px; font-weight: bold; }
        .faq-a { padding: 10px; display: none; }