:root { --primary: #ff3e3e; --secondary: #2563eb; --dark: #1e293b; --light: #f8fafc; }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; line-height: 1.6; color: var(--dark); background: #ffffff; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { padding: 20px 0; border-bottom: 1px solid #eee; display: flex; align-items: center; justify-content: space-between; }
        .nav-links { display: flex; align-items: center; gap: 0; }
        .nav-links a { padding: 10px 15px; color: var(--dark); text-decoration: none; font-weight: 500; }
        .btn { padding: 10px 25px; border-radius: 5px; text-decoration: none; display: inline-block; transition: 0.3s; }
        .btn-primary { background: var(--primary); color: #fff; }
        .hero { padding: 100px 0; text-align: center; background: linear-gradient(135deg, #fff 0%, #fff5f5 100%); }
        h1 { font-size: 3rem; color: var(--dark); margin-bottom: 20px; }
        .section { padding: 80px 0; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
        .card { padding: 30px; border: 1px solid #eee; border-radius: 12px; transition: 0.3s; }
        .card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.1); }
        footer { background: var(--dark); color: #fff; padding: 50px 0; text-align: center; }
        .faq-item { margin-bottom: 15px; border-bottom: 1px solid #333; }
        .faq-q { padding: 15px; cursor: pointer; font-weight: bold; }
        .faq-a { padding: 0 15px 15px; display: none; }