:root{
  --bg:#0b0f17;--panel:#111827;--card:#0f1626;--muted:#1a2235;
  --text:#e6ebf3;--sub:#9aa4b2;
  --brand:#00B2FF;--accent:#FF2A6D;
  --ok:#16c79a;--warn:#f59e0b;--danger:#ef4444;
  --radius:16px;--shadow:0 12px 30px rgba(0,0,0,.35);--glow:0 0 24px rgba(0,178,255,.35);
  --badge-h:22px;--badge-gap:0px;--badge-font:12px;--badge-pad-x:8px
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:linear-gradient(180deg,#0b0f17 0%,#0b0f17 60%,#0d1322 100%);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue",Arial,"Microsoft YaHei",sans-serif}
a{color:var(--brand);text-decoration:none;transition:filter .15s ease,transform .15s ease,opacity .15s ease}
a:visited{color:var(--brand)}
a:active{filter:saturate(110%) brightness(.95)}
a:focus{outline:2px solid rgba(0,178,255,.35);outline-offset:2px}
.wrap{max-width:640px;margin:0 auto;padding:14px}
header{position:sticky;top:0;z-index:50;background:linear-gradient(90deg,rgba(0,178,255,.22),rgba(255,42,109,.22));backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:10px 14px}
.logo{display:flex;align-items:center;gap:10px}
.logo-img{width:40px;height:40px;object-fit:contain;border-radius:8px}
.logo h2{font-size:16px;margin:0}
.safe{display:flex;gap:8px;align-items:center;font-size:12px}
.chip{padding:6px 10px;border-radius:999px;background:linear-gradient(135deg,rgba(0,178,255,.14),rgba(255,42,109,.14));border:1px solid rgba(255,255,255,.12);color:var(--sub);display:inline-flex;align-items:center;gap:6px;transition:filter .15s ease,transform .15s ease,opacity .15s ease}
.chip.primary{color:#001523;background:linear-gradient(135deg,var(--brand),#66D4FF);border-color:transparent;font-weight:700;box-shadow:0 4px 16px rgba(0,178,255,.28)}
.chip:active{filter:saturate(110%) brightness(.95)}
.crumbs{display:flex;gap:6px;align-items:center;font-size:12px;color:var(--sub);padding:8px 14px}
.crumbs a{color:var(--sub)}
main{display:grid;gap:14px;margin-top:10px}
.hero{background:radial-gradient(120% 90% at 50% -10%,rgba(0,178,255,.18),transparent 60%),linear-gradient(180deg,rgba(255,42,109,.10),transparent 40%);border:1px solid rgba(255,255,255,.06);border-radius:calc(var(--radius) + 4px);padding:18px;box-shadow:var(--shadow)}
h1{font-size:20px;margin:0 0 8px 0;letter-spacing:.5px}
.subtitle{font-size:13px;color:var(--sub);line-height:1.6}
.grid{display:grid;gap:12px}
.card{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-head{display:flex;align-items:center;justify-content:space-between;padding:14px;border-bottom:1px solid rgba(255,255,255,.06)}
.card-body{padding:14px}
.ipt{display:flex;gap:10px}
.ipt input{flex:1;background:var(--panel);border:1px solid rgba(255,255,255,.1);border-radius:12px;color:var(--text);padding:12px 14px;font-size:15px;outline:none}
.ipt input:focus{border-color:var(--brand);box-shadow:var(--glow)}
.packages{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.pkg{position:relative;border:1px solid rgba(255,255,255,.08);background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,.01));border-radius:14px;padding:calc(12px + var(--badge-h)) 12px 12px;text-align:center;transition:transform .2s ease,box-shadow .2s ease}
.pkg:hover{transform:translateY(-2px)}
.pkg.selected{outline:2px solid var(--brand);box-shadow:var(--glow)}
.price{font-weight:700;font-size:17px;color:#e6ebf3}
.diam{margin-top:2px;color:var(--sub);font-size:12px}
.badge{position:absolute;top:0;right:0;height:var(--badge-h);display:inline-flex;align-items:center;padding:0 var(--badge-pad-x);font-size:var(--badge-font);font-weight:700;line-height:1;border-top-right-radius:14px;border-bottom-left-radius:999px;border-top-left-radius:0;border-bottom-right-radius:0;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;box-shadow:0 2px 8px rgba(0,0,0,.25);pointer-events:none;z-index:1}
.badge.hot{display:none !important}
.pkg .badge + .badge{display:inline-flex;right:0}
.pay-tabs{display:flex;gap:10px}
.tab{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;border:1px solid rgba(255,255,255,.1);background:var(--panel);padding:10px;border-radius:12px;color:var(--text);font-size:14px;transition:filter .15s ease,transform .15s ease}
.tab.active{border-color:var(--brand);box-shadow:var(--glow)}
.tab:active{filter:saturate(110%) brightness(.95)}
.pay-icon{width:18px;height:18px;display:inline-block;object-fit:contain}
.custom{display:flex;gap:8px;margin-top:8px}
.custom input{flex:1}
.hint{font-size:12px;color:var(--sub);margin-top:6px}
.summary{display:grid;gap:8px}
.row{display:flex;justify-content:space-between;font-size:14px}
.total{font-size:16px}
.cta{display:flex;gap:10px;margin-top:10px}
.btn{flex:1;display:flex;align-items:center;justify-content:center;padding:12px;border-radius:12px;background:linear-gradient(135deg,var(--brand),#61f2ff);color:#001417;font-weight:700;border:none}
.btn:disabled{opacity:.5}
.btn:active{filter:saturate(110%) brightness(.95)}
.sec-title{font-size:15px;margin:0 0 8px 0}
.list{display:grid;gap:10px}
.item{background:var(--panel);border:1px solid rgba(255,255,255,.06);border-radius:12px;padding:12px}
.item h4{margin:0 0 4px 0;font-size:14px}
.item p{margin:0;color:var(--sub);font-size:12px;line-height:1.7}
.faq details{background:var(--panel);border:1px solid rgba(255,255,255,.06);border-radius:12px;padding:12px}
.faq summary{cursor:pointer;font-size:14px;font-weight:600;outline:none}
.faq p{color:var(--sub);font-size:12px;line-height:1.7}
footer{margin:18px 0 40px 0;color:var(--sub);font-size:12px}
.icp{display:grid;gap:6px;justify-items:center}
.blink{animation:blink 1.6s infinite}
@keyframes blink{0%,100%{opacity:.6}50%{opacity:1}}
.shine{position:relative;overflow:hidden}
.shine::after{content:"";position:absolute;inset:auto -40% 0 -40%;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);animation:shine 3.6s linear infinite}
@keyframes shine{0%{transform:translateX(-60%)}100%{transform:translateX(160%)}}
@media (max-width:360px){
  .packages{grid-template-columns:repeat(2,1fr)}
  :root{--badge-h:20px;--badge-font:11px;--badge-pad-x:6px}
}
@media (max-width: 420px){
  footer{ text-align:center; }
  .icp{
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:6px;
    width:100%;
  }
  .icp>*{ text-align:center; width:100%; }
  .icp a{ display:inline-block; }
  .icp{ overflow-wrap:anywhere; }
}
header .nav{ flex-wrap:nowrap; min-width:0 }
.safe{ display:flex; gap:8px; flex:1 1 auto; justify-content:flex-end; min-width:0 }
.chip{ flex:0 1 auto; white-space:nowrap }


header .nav{ flex-wrap:nowrap; min-width:0; padding:6px 10px; }
.logo{ flex:0 0 auto; min-width:0; }
.safe{ flex:1 1 auto; min-width:0; display:flex; justify-content:flex-end; gap:8px; }


.chip{ 
  flex:0 1 auto; 
  min-width:0; 
  white-space:nowrap; 
  line-height:1.1;
}


@media (max-width:375px){
  .safe{ gap:6px; }
  .chip{ padding:4px 9px; font-size:12px; }
}


@media (max-width:360px){
  .safe{ gap:4px; }
  .chip{ padding:3px 7px; font-size:11.5px; }
}


@supports (font-size:clamp(10px, 2.8vw, 12px)){
  @media (max-width:375px){
    .chip{ font-size:clamp(10px, 2.8vw, 12px); }
  }
}