:root {
  --primary: #4f7cff;
  --primary-dark: #3a5fd4;
  --accent: #6c5ce7;
  --bg: #f7f8fc;
  --card: #ffffff;
  --text: #1a1f36;
  --text-light: #6b7280;
  --border: #e5e7eb;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(0,0,0,.06);
  --max-w: 1120px;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%}
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}

.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:var(--max-w);margin:0 auto;padding:0 24px}
.logo{font-weight:700;font-size:20px;color:var(--text);display:flex;align-items:center;gap:8px}
.logo:hover{text-decoration:none}
.logo-dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent))}
.nav{display:flex;gap:8px}
.nav a{padding:8px 14px;border-radius:8px;color:var(--text-light);font-size:14px;white-space:nowrap}.nav a:hover{background:var(--bg);color:var(--text);text-decoration:none}.nav a.active{color:var(--primary);background:rgba(79,124,255,.08)}
.header-actions{display:flex;gap:12px;align-items:center}
.status-pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--success);background:rgba(16,185,129,.1);padding:4px 10px;border-radius:999px}.status-pill .dot{width:6px;height:6px;border-radius:50%;background:var(--success);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;border:none;transition:.2s}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);text-decoration:none}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border)}.btn-ghost:hover{background:var(--bg);text-decoration:none}

.hero{padding:80px 0 60px;text-align:center;background:radial-gradient(ellipse at top,rgba(79,124,255,.12),transparent 70%)}
.hero h1{font-size:44px;font-weight:800;letter-spacing:-1px;margin-bottom:16px}
.hero .lead{font-size:18px;color:var(--text-light);max-width:600px;margin:0 auto 32px}
.hero-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

.chips{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:40px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;background:var(--card);border:1px solid var(--border);border-radius:999px;font-size:14px;box-shadow:var(--shadow)}

section{padding:64px 0}
.section-head{text-align:center;margin-bottom:40px}
.section-head .eyebrow{font-size:13px;color:var(--primary);font-weight:600;letter-spacing:1px;text-transform:uppercase;margin-bottom:8px}
.section-head h2{font-size:32px;font-weight:700;margin-bottom:12px}
.section-head p{color:var(--text-light);max-width:600px;margin:0 auto}

.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:.2s}.card:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.08)}
.card h3{font-size:18px;margin-bottom:8px}.card p{color:var(--text-light);font-size:14px}

.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px;justify-content:center}
.tab{padding:8px 16px;border-radius:8px;background:var(--card);border:1px solid var(--border);font-size:13px;cursor:pointer;color:var(--text-light)}.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}

.badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:600}.badge-risk{background:rgba(239,68,68,.1);color:var(--danger)}.badge-normal{background:rgba(16,185,129,.1);color:var(--success)}

.site-footer{background:#11152b;color:#9ca3af;padding:48px 0 24px;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:12px}.footer-col a{color:#9ca3af;font-size:13px;display:block;padding:4px 0}.footer-col a:hover{color:#fff;text-decoration:none}
.footer-bottom{border-top:1px solid #2a2f4a;padding-top:24px;text-align:center;font-size:13px}

.faq-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden}
.faq-q{padding:18px 24px;cursor:pointer;font-weight:500;display:flex;justify-content:space-between;align-items:center}
.faq-q::after{content:"+";font-size:20px;color:var(--text-light);transition:.2s}
.faq-item.open .faq-q::after{content:"\2212"}
.faq-a{padding:0 24px 18px;color:var(--text-light);font-size:14px;display:none}
.faq-item.open .faq-a{display:block}

.price-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:32px 24px;text-align:center;position:relative}.price-card.featured{border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,124,255,.15)}.price-card h3{font-size:16px;color:var(--text-light);margin-bottom:8px}.price{font-size:40px;font-weight:800;margin:8px 0}.price small{font-size:14px;color:var(--text-light);font-weight:400}.price-card ul{list-style:none;text-align:left;margin:16px 0}.price-card li{padding:6px 0;font-size:14px;color:var(--text-light)}.price-card li::before{content:"\2713 ";color:var(--success);font-weight:bold}

.steps{counter-reset:step;display:grid;gap:16px}.step{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;display:flex;gap:16px;align-items:flex-start}.step-num{flex-shrink:0;width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px}

.breadcrumb{padding:16px 0;font-size:13px;color:var(--text-light)}.breadcrumb a{color:var(--text-light)}.breadcrumb span{margin:0 8px}

.status-banner{background:linear-gradient(135deg,rgba(79,124,255,.08),rgba(108,92,231,.08));padding:60px 0;text-align:center}
.status-banner h2{font-size:30px;margin-bottom:12px}.status-banner p{color:var(--text-light);font-size:16px;max-width:640px;margin:0 auto}

.manual-nav{position:sticky;top:80px;align-self:start}.manual-nav a{display:block;padding:6px 0;font-size:13px;color:var(--text-light)}.manual-layout{display:grid;grid-template-columns:220px 1fr;gap:32px}.content-block{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;margin-bottom:24px}.content-block h3{margin-bottom:12px}.content-block h4{margin:16px 0 8px;font-size:15px}.content-block p,.content-block li{font-size:14px;color:var(--text-light)}.content-block ul{padding-left:20px;margin:8px 0}.state-item{display:flex;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--border)}.state-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}@media(max-width:768px){.manual-layout{grid-template-columns:1fr}.manual-nav{display:none}}

table{width:100%;border-collapse:collapse;margin-top:16px}th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border);font-size:14px}th{background:var(--bg);font-weight:600}