:root{
  --bg:#0b0e14;
  --panel:#121721;
  --panel-soft:#171d29;
  --line:#252d3c;
  --line-strong:#334057;
  --text:#ecf1f8;
  --soft:#a4aec0;
  --muted:#748096;
  --blue:#6c96ff;
  --cyan:#48c6d9;
  --green:#56c78c;
  --amber:#e6b75c;
  --rose:#e57991;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  color:var(--text);
  background:
    radial-gradient(circle at 8% 0%,rgba(72,198,217,.10),transparent 34rem),
    radial-gradient(circle at 92% 12%,rgba(108,150,255,.12),transparent 30rem),
    var(--bg);
  font:15px/1.7 "Microsoft YaHei","PingFang SC",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
.site-header{
  position:sticky;
  top:0;
  z-index:20;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:14px max(22px,calc((100vw - 1180px)/2));
  border-bottom:1px solid rgba(255,255,255,.07);
  background:rgba(11,14,20,.84);
  backdrop-filter:blur(16px);
}
.brand{display:flex;align-items:center;gap:11px}
.brand-mark{
  display:grid;
  place-items:center;
  width:38px;
  height:38px;
  border-radius:10px;
  color:#fff;
  background:linear-gradient(145deg,#6c96ff,#48c6d9);
  box-shadow:0 8px 24px rgba(72,198,217,.18);
  font-weight:800;
}
.brand-text strong{display:block;font-size:15px}
.brand-text small{display:block;margin-top:1px;color:var(--muted);font-size:10px;letter-spacing:.16em}
.header-nav{display:flex;align-items:center;gap:5px}
.nav-link{padding:8px 12px;border-radius:8px;color:var(--soft);font-size:13px;transition:.18s ease}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:#fff;background:rgba(108,150,255,.14)}
.page-shell{width:min(1180px,calc(100% - 44px));margin:0 auto;padding:52px 0 76px}
.eyebrow{margin:0;color:var(--cyan);font-size:11px;font-weight:800;letter-spacing:.18em}
.price-hero{
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(340px,.75fr);
  gap:28px;
  align-items:stretch;
}
.hero-copy{
  min-height:270px;
  padding:38px 42px;
  border:1px solid var(--line);
  border-radius:16px;
  background:
    linear-gradient(130deg,rgba(108,150,255,.12),transparent 54%),
    var(--panel);
}
.hero-copy h1{margin:11px 0 12px;font-size:clamp(32px,5vw,56px);line-height:1.05;letter-spacing:-.02em}
.hero-copy p:last-child{max-width:650px;margin:0;color:var(--soft);font-size:16px}
.rate-board{
  display:grid;
  gap:1px;
  margin:0;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:16px;
  background:var(--line);
}
.rate-board div{display:grid;align-content:center;min-height:88px;padding:18px 22px;background:var(--panel-soft)}
.rate-board dt{color:var(--muted);font-size:12px}
.rate-board dd{margin:4px 0 0;font-size:17px;font-weight:750}
.policy-strip{
  display:flex;
  align-items:center;
  gap:10px;
  margin:18px 0 46px;
  padding:12px 15px;
  border:1px solid rgba(86,199,140,.22);
  border-radius:10px;
  color:#b6d9c4;
  background:rgba(86,199,140,.07);
  font-size:13px;
}
.policy-dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 5px rgba(86,199,140,.10)}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:18px}
.section-heading h2,.billing-notes h2,.price-cta h2{margin:5px 0 0;font-size:24px}
.update-time{color:var(--muted);font-size:12px}
.model-grid{display:grid;gap:18px}
.model-card{
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--panel);
  box-shadow:0 18px 50px rgba(0,0,0,.12);
}
.model-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:20px 22px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(110deg,rgba(255,255,255,.025),transparent);
}
.model-identity{display:flex;align-items:center;gap:14px;min-width:0}
.model-mark{
  display:grid;
  place-items:center;
  flex:0 0 auto;
  width:42px;
  height:42px;
  border:1px solid var(--line-strong);
  border-radius:11px;
  font:800 12px ui-monospace,Consolas,monospace;
}
.model-mark.tone-0{color:#a8bcff;background:rgba(108,150,255,.11)}
.model-mark.tone-1{color:#8de3ef;background:rgba(72,198,217,.10)}
.model-mark.tone-2{color:#f1ce87;background:rgba(230,183,92,.10)}
.model-mark.tone-3{color:#ef9db0;background:rgba(229,121,145,.10)}
.model-head h3{margin:0;font-size:18px}
.model-head p{margin:3px 0 0;color:var(--muted);font-size:13px}
.model-head code{max-width:100%;overflow-wrap:anywhere;padding:5px 9px;border:1px solid var(--line);border-radius:7px;color:#b9c9e8;background:#0e131c;font:12px ui-monospace,Consolas,monospace}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{padding:14px 20px;text-align:left;border-bottom:1px solid rgba(255,255,255,.055);vertical-align:middle}
th{color:var(--muted);background:rgba(255,255,255,.018);font-size:11px;font-weight:700;letter-spacing:.08em}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:rgba(108,150,255,.035)}
.quality-badge{display:inline-block;min-width:38px;padding:3px 7px;border:1px solid rgba(108,150,255,.28);border-radius:6px;color:#b9c9ff;background:rgba(108,150,255,.09);font-size:12px;font-weight:800;text-align:center}
td small{display:block;margin-top:4px;color:var(--muted)}
.point-price{font-size:20px;color:#fff}
.yuan-price{color:var(--green);font-weight:750}
.empty-price{display:grid;place-items:center;min-height:220px;padding:28px;border:1px dashed var(--line-strong);border-radius:14px;color:var(--muted);text-align:center}
.empty-price strong{display:block;margin-bottom:6px;color:var(--text);font-size:17px}
.billing-notes{display:grid;grid-template-columns:250px 1fr;gap:34px;margin-top:58px;padding-top:34px;border-top:1px solid var(--line)}
.note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.note-grid article{min-height:150px;padding:20px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.018)}
.note-grid span{color:var(--cyan);font:800 11px ui-monospace,Consolas,monospace}
.note-grid h3{margin:18px 0 7px;font-size:15px}
.note-grid p{margin:0;color:var(--muted);font-size:13px}
.price-cta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  margin-top:54px;
  padding:30px 34px;
  border:1px solid var(--line);
  border-radius:16px;
  background:
    linear-gradient(120deg,rgba(108,150,255,.13),rgba(72,198,217,.07) 58%,transparent),
    var(--panel-soft);
}
.price-cta h2{margin-top:0}
.price-cta p{max-width:660px;margin:7px 0 0;color:var(--soft)}
.cta-actions{display:flex;flex:0 0 auto;gap:10px}
.button-primary,.button-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:9px 16px;border-radius:9px;font-size:13px;font-weight:750;transition:.18s ease}
.button-primary{color:#fff;background:#5c86ee;box-shadow:0 10px 28px rgba(92,134,238,.22)}
.button-primary:hover{background:#6f96f7;transform:translateY(-1px)}
.button-secondary{border:1px solid var(--line-strong);color:var(--soft);background:rgba(255,255,255,.025)}
.button-secondary:hover{color:#fff;border-color:#53617a;transform:translateY(-1px)}
.site-footer{display:flex;justify-content:space-between;gap:20px;width:min(1180px,calc(100% - 44px));margin:0 auto;padding:25px 0 30px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
@media(max-width:920px){
  .price-hero{grid-template-columns:1fr}
  .rate-board{grid-template-columns:repeat(3,1fr)}
  .billing-notes{grid-template-columns:1fr}
  .note-grid{grid-template-columns:1fr}
  .note-grid article{min-height:0}
}
@media(max-width:700px){
  .site-header{align-items:flex-start;padding:12px 16px}
  .header-nav{flex-wrap:wrap;justify-content:flex-end}
  .nav-link{padding:6px 8px}
  .page-shell{width:min(100% - 28px,1180px);padding-top:30px}
  .hero-copy{padding:28px 24px}
  .rate-board{grid-template-columns:1fr}
  .rate-board div{min-height:72px}
  .section-heading,.price-cta,.site-footer{align-items:flex-start;flex-direction:column}
  .model-head{align-items:flex-start;flex-direction:column;gap:12px}
  th,td{padding:12px 14px;white-space:nowrap}
  .price-cta{padding:24px}
  .cta-actions{width:100%;flex-direction:column}
  .button-primary,.button-secondary{width:100%}
  .site-footer{width:calc(100% - 28px)}
}