:root { --primary: #6366f1; --neon: #00f2ff; --dark: #0f172a; --text: #f8fafc; }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'Segoe UI', sans-serif; background: var(--dark); color: var(--text); line-height: 1.6; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { padding: 20px 0; border-bottom: 1px solid #334155; position: sticky; top: 0; z-index: 100; background: rgba(15, 23, 42, 0.9); }
        .nav-wrapper { display: flex; justify-content: space-between; align-items: center; }
        .nav-links { display: flex; gap: 0; list-style: none; }
        .nav-links a { color: #fff; text-decoration: none; padding: 10px 15px; transition: 0.3s; }
        .btn { padding: 12px 24px; border-radius: 8px; border: none; cursor: pointer; font-weight: bold; transition: 0.3s; }
        .btn-primary { background: var(--primary); color: white; }
        .hero { padding: 100px 0; text-align: center; }
        h1 { font-size: 3.5rem; background: linear-gradient(to right, #6366f1, #00f2ff); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 20px; }
        .cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-top: 40px; }
        .card { background: #1e293b; padding: 30px; border-radius: 16px; border: 1px solid #334155; transition: 0.3s; }
        .card:hover { transform: translateY(-10px); border-color: var(--neon); }
        table { width: 100%; border-collapse: collapse; margin-top: 20px; background: #1e293b; }
        th, td { padding: 15px; text-align: left; border-bottom: 1px solid #334155; }
        .faq-item { margin-bottom: 15px; border-bottom: 1px solid #334155; }
        .faq-q { cursor: pointer; padding: 15px; font-weight: bold; display: flex; justify-content: space-between; }
        footer { padding: 40px 0; background: #020617; text-align: center; border-top: 1px solid #334155; }
        .float-kefu { position: fixed; right: 20px; bottom: 20px; z-index: 99; }