:root { --primary: #4f46e5; --text: #1f2937; --bg: #f9fafb; --accent: #ec4899; }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'PingFang SC', sans-serif; color: var(--text); background: var(--bg); line-height: 1.6; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { background: #fff; border-bottom: 1px solid #e5e7eb; position: sticky; top: 0; z-index: 100; }
        nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
        .logo { font-weight: bold; font-size: 20px; color: var(--primary); }
        .nav-links { display: flex; align-items: center; gap: 0; }
        .nav-links a { padding: 0 15px; color: #4b5563; text-decoration: none; font-size: 14px; }
        .hero { padding: 80px 0; text-align: center; background: linear-gradient(135deg, #eef2ff 0%, #fdf2f8 100%); }
        .hero h1 { font-size: 3rem; margin-bottom: 20px; color: #111827; }
        .btn { display: inline-block; padding: 12px 30px; background: var(--primary); color: white; border-radius: 8px; text-decoration: none; transition: 0.3s; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; padding: 60px 0; }
        .card { background: #fff; padding: 24px; border-radius: 16px; border: 1px solid #e5e7eb; transition: 0.3s; }
        .card:hover { transform: translateY(-5px); box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
        section { padding: 60px 0; }
        table { width: 100%; border-collapse: collapse; margin: 20px 0; }
        th, td { border: 1px solid #e5e7eb; padding: 12px; text-align: left; }
        footer { background: #111827; color: #9ca3af; padding: 40px 0; text-align: center; }
        .faq-item { margin-bottom: 15px; border-bottom: 1px solid #374151; padding-bottom: 10px; cursor: pointer; }