:root{
  --bg:#0b0c0f;
  --muted:#6b7280;
  --card:#111318;
  --border:#1f2937;
  --text:#e5e7eb;
  --brand:#4f46e5;
  --brand-2:#06b6d4;
  --shadow:0 10px 25px rgba(0,0,0,.2);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter, "PingFang SC","Hiragino Sans GB","Microsoft Yahei",Arial,sans-serif;
  background:#ffffff;
  color:#111827;
  line-height:1.6;
}
body.theme-dark{
  background:var(--bg);
  color:var(--text);
}
.container{max-width:1100px;margin:0 auto;padding:24px}
.center{ text-align:center }
.muted{ color:#6b7280 }
.theme-dark .muted{ color:var(--muted) }

.site-header{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit}
.brand .avatar{width:44px;height:44px;border-radius:50%;object-fit:cover;border:2px solid #e5e7eb}
.theme-dark .brand .avatar{border-color:#374151}
.brand-text{font-weight:700;font-size:20px}
.nav-toggle{display:none}
.nav-list{display:flex;gap:18px;list-style:none;margin:0;padding:0;align-items:center}
.nav-list a{text-decoration:none;color:inherit;border-bottom:2px solid transparent;padding-bottom:4px}
.nav-list a:hover{border-color:var(--brand)}

.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center}
.hero .lead{font-size:18px;opacity:.9}
.cta-group{display:flex;gap:12px;margin:16px 0 8px}
.btn{border:1px solid #d1d5db;background:#fff;padding:10px 16px;border-radius:12px;cursor:pointer;text-decoration:none;color:#111827;display:inline-flex;align-items:center;gap:8px;box-shadow:var(--shadow)}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:linear-gradient(90deg,var(--brand),var(--brand-2));border:0;color:#fff}
.btn.ghost{background:transparent;border-color:#cbd5e1;color:inherit;box-shadow:none}
.btn.small{padding:6px 12px;border-radius:10px}
.socials{display:flex;gap:12px;margin-top:8px}
.social{font-size:14px;color:inherit;opacity:.8;text-decoration:none;border-bottom:1px dashed #cbd5e1}
.hero-image img{width:100%;border-radius:16px;border:1px solid #e5e7eb;box-shadow:var(--shadow)}
.theme-dark .hero-image img{border-color:#1f2937}

h1,h2,h3{line-height:1.3}
h1{font-size:36px;margin:0 0 10px}
h2{font-size:28px;margin:24px 0 8px}
h3{font-size:20px;margin:0 0 6px}
.split{display:grid;grid-template-columns:1fr .9fr;gap:24px;align-items:start}

.card{background:#ffffff;border:1px solid #e5e7eb;border-radius:16px;padding:18px;box-shadow:var(--shadow)}
.theme-dark .card{background:var(--card);border-color:var(--border)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cards .card p{margin:8px 0 12px}
.link{color:var(--brand);text-decoration:none}

.bullets{padding-left:18px}
.bullets li{margin:6px 0}

.timeline{list-style:none;margin:0;padding:0}
.timeline li{display:flex;gap:10px;padding:8px 0;border-bottom:1px dashed #e5e7eb}
.timeline li:last-child{border-bottom:0}
.timeline span{display:inline-block;min-width:80px;color:#6b7280}
.theme-dark .timeline li{border-color:#374151}

.calendar{display:flex;flex-direction:column;gap:12px}
.slot{display:flex;align-items:center;justify-content:space-between;background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:14px;box-shadow:var(--shadow)}
.theme-dark .slot{background:var(--card);border-color:var(--border)}
.when{font-weight:600}
.note{font-size:13px;color:#6b7280;margin-top:6px}

.product{position:relative}
.product .tag{position:absolute;top:12px;right:12px;background:#111827;color:#fff;font-size:12px;padding:4px 8px;border-radius:10px;opacity:.9}
.product .price{font-weight:700;margin:6px 0}
.product .row{display:flex;gap:10px}

.contact-grid{grid-template-columns:1.2fr .8fr}
.qrcode img{width:220px;height:220px;border:1px dashed #cbd5e1;border-radius:12px;object-fit:cover}

.site-footer{display:flex;align-items:center;justify-content:space-between;padding-bottom:40px;border-top:1px dashed #e5e7eb;margin-top:24px}
.theme-dark .site-footer{border-color:#374151}

.center-screen{min-height:100vh;display:grid;place-items:center}
.notfound{ text-align:center }
.notfound h1{font-size:72px;margin:0 0 4px}

body.theme-dark .btn{background:#181a20;color:#e5e7eb;border-color:#30343b}
body.theme-dark .btn.ghost{background:transparent;border-color:#30343b}
body.theme-dark .btn.primary{color:#fff}
body.theme-dark .card, body.theme-dark .slot{box-shadow:none}

@media (max-width: 900px){
  .hero{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr 1fr}
  .nav-toggle{display:block}
  .nav-list{display:none;position:absolute;right:16px;top:68px;background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:10px 12px;flex-direction:column;box-shadow:var(--shadow)}
  body.theme-dark .nav-list{background:var(--card);border-color:var(--border)}
  .nav.open .nav-list{display:flex}
}
@media (max-width: 560px){
  .grid{grid-template-columns:1fr}
  .qrcode img{width:180px;height:180px}
}