:root{
  --bg:#05070c;
  --bg2:#080d16;
  --card:rgba(14,22,35,.78);
  --line:rgba(90,140,180,.18);
  --line2:rgba(120,190,230,.32);
  --txt:#e6f1fb;
  --dim:#8aa2b8;
  --cyan:#22d3ee;
  --blue:#38bdf8;
  --violet:#8b5cf6;
  --ok:#34d399;
  --warn:#fbbf24;
  --bad:#f87171;
  --mono:"JetBrains Mono","Cascadia Mono",Consolas,ui-monospace,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:radial-gradient(1200px 700px at 80% -10%,#0d2438 0%,transparent 60%),
             radial-gradient(900px 600px at 10% 10%,#1a1035 0%,transparent 55%),
             var(--bg);
  color:var(--txt);
  font-family:"Microsoft YaHei UI","PingFang SC",-apple-system,"Segoe UI",sans-serif;
  min-height:100vh;
  overflow-x:hidden;
}
.bg-grid{
  position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(70,140,180,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(70,140,180,.055) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
}
.bg-glow{
  position:fixed;width:760px;height:760px;left:50%;top:-420px;transform:translateX(-50%);
  background:radial-gradient(circle,rgba(34,211,238,.16),rgba(139,92,246,.08) 45%,transparent 70%);
  filter:blur(20px);pointer-events:none;z-index:0;
}
main,header,footer{position:relative;z-index:1}
a{color:inherit;text-decoration:none}

/* nav */
.nav{
  max-width:1180px;margin:0 auto;padding:22px 28px;
  display:flex;align-items:center;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:42px;height:42px;border-radius:12px;box-shadow:0 0 24px rgba(34,211,238,.22)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:15px;letter-spacing:.16em}
.brand-text span{font-size:11px;color:var(--dim);letter-spacing:.28em}
.nav nav{display:flex;gap:8px;align-items:center}
.nav nav a{
  padding:9px 14px;border-radius:10px;font-size:13.5px;color:var(--dim);
  border:1px solid transparent;transition:.2s;
}
.nav nav a:hover{color:var(--txt);border-color:var(--line);background:rgba(255,255,255,.03)}
.nav nav a.ghost{border-color:var(--line);color:var(--txt)}

/* setup band */
.setup{
  position:relative;max-width:1180px;margin:8px auto 0;padding:0 28px;
}
.setup-inner{
  position:relative;overflow:hidden;text-align:center;
  padding:52px 44px 40px;border-radius:26px;
  background:
    radial-gradient(900px 380px at 50% -10%,rgba(34,211,238,.16),transparent 62%),
    radial-gradient(700px 300px at 15% 110%,rgba(139,92,246,.16),transparent 65%),
    linear-gradient(170deg,rgba(12,22,36,.96),rgba(6,10,17,.98));
  border:1px solid rgba(56,189,248,.26);
  box-shadow:0 30px 90px rgba(0,0,0,.55), inset 0 1px 0 rgba(255,255,255,.05);
}
.setup-inner::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,#22d3ee,#8b5cf6,transparent);
}
.setup-glow{
  position:absolute;left:50%;top:-160px;width:620px;height:320px;transform:translateX(-50%);
  background:radial-gradient(circle,rgba(34,211,238,.22),transparent 68%);
  filter:blur(30px);pointer-events:none;
}
.setup-eyebrow{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;letter-spacing:.26em;color:#7dd3fc;
  padding:6px 16px;border-radius:999px;
  background:rgba(34,211,238,.07);border:1px solid rgba(34,211,238,.26);
}
.setup-eyebrow i{width:5px;height:5px;border-radius:50%;background:#22d3ee;box-shadow:0 0 8px #22d3ee}

.setup-price{
  position:relative;display:flex;align-items:baseline;justify-content:center;gap:10px;
  margin:18px 0 2px;
}
.setup-price .num{
  font-family:var(--mono);font-weight:700;line-height:.95;letter-spacing:-.04em;
  font-size:clamp(64px,9.5vw,118px);
  background:linear-gradient(180deg,#ffffff 0%,#a5f3fc 42%,#38bdf8 72%,#8b5cf6 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 8px 40px rgba(56,189,248,.35));
}
.setup-price .unit{
  font-family:var(--mono);font-size:clamp(15px,2vw,22px);color:#7dd3fc;
  letter-spacing:.16em;padding-bottom:14px;
}
.setup-title{
  position:relative;margin:6px 0 14px;
  font-size:clamp(24px,3.4vw,38px);font-weight:700;letter-spacing:-.01em;color:#eaf6ff;
}
.setup-title em{
  font-style:normal;
  background:linear-gradient(100deg,#67e8f9,#38bdf8 45%,#a78bfa);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.setup-lead{
  position:relative;max-width:660px;margin:0 auto;
  font-size:14.5px;line-height:1.9;color:#9fb6c9;
}

.setup-pillars{
  position:relative;display:grid;grid-template-columns:repeat(3,1fr);
  gap:12px;margin:30px 0 0;text-align:left;
}
.pillar{
  padding:18px 20px;border-radius:14px;
  background:rgba(255,255,255,.028);
  border:1px solid rgba(120,190,230,.14);
}
.pillar b{
  display:block;font-size:13.5px;color:#cfeaf7;margin-bottom:7px;letter-spacing:.04em;
}
.pillar b::before{
  content:"";display:inline-block;width:5px;height:5px;margin-right:8px;vertical-align:2px;
  border-radius:50%;background:linear-gradient(135deg,#22d3ee,#8b5cf6);
}
.pillar span{font-size:12.5px;line-height:1.75;color:#8aa2b8}

.setup-actions{
  position:relative;display:flex;gap:12px;justify-content:center;margin:30px 0 0;
}
.setup-actions .btn{padding:14px 34px;font-size:15px;border-radius:13px}
.setup-note{
  position:relative;margin:18px 0 0;font-size:11.5px;color:#6d8399;letter-spacing:.03em;
}

/* hero *//* hero */
.hero{
  max-width:1180px;margin:0 auto;padding:56px 28px 10px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center;
}
.pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 14px;border-radius:999px;font-size:12.5px;color:#a9e9f6;
  background:rgba(34,211,238,.07);border:1px solid rgba(34,211,238,.25);
}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
h1{font-size:52px;line-height:1.1;margin:20px 0 14px;letter-spacing:-.02em}
h1 span{
  background:linear-gradient(100deg,#67e8f9,#38bdf8 40%,#a78bfa);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{color:var(--dim);font-size:15.5px;line-height:1.75;max-width:540px;margin:0}
.hero-actions{display:flex;gap:12px;margin:28px 0 34px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:12px;font-size:14.5px;cursor:pointer;
  border:1px solid var(--line2);background:rgba(255,255,255,.035);color:var(--txt);
  transition:.18s;font-family:inherit;
}
.btn:hover{background:rgba(255,255,255,.08);transform:translateY(-1px)}
.btn.primary{
  border:none;background:linear-gradient(100deg,#22d3ee,#3b82f6 55%,#8b5cf6);
  color:#031018;font-weight:700;box-shadow:0 10px 34px rgba(56,189,248,.28);
}
.btn.primary:hover{box-shadow:0 14px 40px rgba(56,189,248,.4)}
.btn.small{padding:9px 16px;font-size:13px;border-radius:9px}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}
.metrics{display:flex;gap:38px}
.metrics div{display:flex;flex-direction:column;gap:4px}
.metrics b{font-family:var(--mono);font-size:19px}
.metrics span{font-size:11.5px;color:var(--dim);letter-spacing:.04em}

.hero-art{position:relative;display:grid;place-items:center}
.hero-art img{width:330px;height:330px;border-radius:64px;position:relative;z-index:2;
  filter:drop-shadow(0 24px 60px rgba(34,211,238,.22))}
.ring{
  position:absolute;width:400px;height:400px;border-radius:50%;
  border:1px dashed rgba(56,189,248,.25);
  animation:spin 26s linear infinite;
}
.ring::after{
  content:"";position:absolute;top:-4px;left:50%;width:8px;height:8px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 14px var(--cyan);
}
@keyframes spin{to{transform:rotate(360deg)}}

/* sections */
.section{max-width:1180px;margin:0 auto;padding:74px 28px 0}
.section-head h2{font-size:27px;margin:0 0 8px;letter-spacing:-.01em}
.section-head p{color:var(--dim);margin:0 0 26px;font-size:14px}

/* plans */
.plans{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.plan{
  position:relative;padding:24px 20px 20px;border-radius:18px;
  background:var(--card);border:1px solid var(--line);
  backdrop-filter:blur(12px);transition:.22s;cursor:pointer;overflow:hidden;
}
.plan::before{
  content:"";position:absolute;inset:0;border-radius:18px;padding:1px;
  background:linear-gradient(160deg,rgba(56,189,248,.5),transparent 45%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:.22s;
}
.plan:hover{transform:translateY(-4px);border-color:var(--line2);box-shadow:0 18px 44px rgba(2,10,20,.6)}
.plan:hover::before{opacity:1}
.plan.hot{background:linear-gradient(170deg,rgba(34,211,238,.1),rgba(139,92,246,.08));border-color:rgba(56,189,248,.42)}
.plan .tag{
  position:absolute;top:14px;right:14px;font-size:10.5px;padding:4px 9px;border-radius:999px;
  background:rgba(34,211,238,.14);border:1px solid rgba(34,211,238,.35);color:#a5f3fc;
  letter-spacing:.06em;
}
.plan h3{font-size:16px;margin:0 0 16px;color:#cfe6f5;font-weight:600}
.plan .price{font-family:var(--mono);font-size:30px;letter-spacing:-.02em;line-height:1}
.plan .price small{font-size:12px;color:var(--dim);margin-left:5px;letter-spacing:.04em}
.plan .per{font-size:12px;color:var(--dim);margin:9px 0 16px}
.plan .per b{color:#7dd3fc;font-family:var(--mono)}
.plan .desc{font-size:12px;color:var(--dim);min-height:32px;line-height:1.6}
.plan-buy{
  width:100%;margin-top:14px;padding:9px 0;font-size:12.5px;
  border-color:var(--line2);background:rgba(255,255,255,.04);
}
.plan.hot .plan-buy{
  border:none;background:linear-gradient(100deg,#22d3ee,#3b82f6 55%,#8b5cf6);
  color:#031018;font-weight:700;
}
.in-stock{color:#34d399}
.no-stock{color:#fbbf24}
.plan .off{
  display:inline-block;margin-top:10px;font-size:11px;color:#6ee7b7;
  background:rgba(52,211,153,.09);border:1px solid rgba(52,211,153,.25);
  padding:3px 8px;border-radius:7px;
}
.loading{grid-column:1/-1;color:var(--dim);padding:30px;text-align:center}

/* credits */
.credit-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;border-radius:16px;margin-bottom:16px;
  background:var(--card);border:1px solid var(--line);
}
.credit-bar span{display:block;font-size:11.5px;color:var(--dim);letter-spacing:.08em}
.credit-bar b{font-family:var(--mono);font-size:24px;color:#67e8f9}
.credit-hint{font-size:12px;color:var(--dim)}
.credit-plans{grid-template-columns:repeat(4,1fr)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.step{
  padding:22px;border-radius:16px;background:var(--card);border:1px solid var(--line);
}
.step span{font-family:var(--mono);font-size:12px;color:#67e8f9;letter-spacing:.2em}
.step h3{margin:12px 0 8px;font-size:15px}
.step p{margin:0;font-size:13px;color:var(--dim);line-height:1.7}

/* lookup */
.lookup-card{display:flex;gap:10px;max-width:560px}
input{
  flex:1;padding:13px 16px;border-radius:11px;background:rgba(255,255,255,.04);
  border:1px solid var(--line);color:var(--txt);font-family:var(--mono);font-size:13.5px;outline:none;
}
input:focus{border-color:rgba(56,189,248,.55);box-shadow:0 0 0 3px rgba(56,189,248,.1)}
.lookup-result{margin-top:16px;font-size:13.5px;color:var(--dim);line-height:1.9}

/* faq */
.faq details{
  border:1px solid var(--line);border-radius:13px;padding:15px 18px;margin-bottom:10px;
  background:rgba(255,255,255,.02);
}
.faq summary{cursor:pointer;font-size:14px;color:#cfe6f5}
.faq p{color:var(--dim);font-size:13px;line-height:1.8;margin:10px 0 0}

footer{
  max-width:1180px;margin:90px auto 0;padding:26px 28px 46px;
  border-top:1px solid var(--line);display:flex;align-items:center;gap:14px;
}
footer img{width:34px;height:34px;border-radius:9px;opacity:.85}
footer b{display:block;font-size:13px;letter-spacing:.14em}
footer span{font-size:11.5px;color:var(--dim);font-family:var(--mono)}

/* modal */
.modal{
  position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:20px;
  background:rgba(2,5,10,.76);backdrop-filter:blur(8px);
}
.modal[hidden]{display:none}
.modal-card{
  position:relative;width:min(520px,100%);max-height:90vh;overflow:auto;
  background:linear-gradient(170deg,#0b1420,#080d15);
  border:1px solid rgba(90,150,190,.3);border-radius:20px;padding:30px;
  box-shadow:0 40px 120px rgba(0,0,0,.7);
}
.close{
  position:absolute;top:14px;right:16px;background:none;border:none;color:var(--dim);
  font-size:26px;cursor:pointer;line-height:1;
}
.close:hover{color:#fff}
.modal h3{margin:0 0 6px;font-size:20px}
.modal .sub{color:var(--dim);font-size:13px;margin:0 0 22px}
.pay-grid{display:grid;grid-template-columns:150px 1fr;gap:18px;align-items:start}
.qr-box{
  width:150px;height:150px;border-radius:14px;background:#fff;padding:8px;display:grid;place-items:center;
}
.qr-box img{width:100%;height:100%;image-rendering:pixelated}
.field{margin-bottom:13px}
.field label{display:block;font-size:11.5px;color:var(--dim);letter-spacing:.08em;margin-bottom:6px}
.copyrow{display:flex;gap:8px;align-items:center}
.copyrow code{
  flex:1;font-family:var(--mono);font-size:12.5px;padding:10px 12px;border-radius:9px;
  background:rgba(255,255,255,.045);border:1px solid var(--line);word-break:break-all;
}
.copyrow button{
  padding:9px 12px;border-radius:9px;border:1px solid var(--line2);background:rgba(255,255,255,.05);
  color:var(--txt);cursor:pointer;font-size:12px;font-family:inherit;
}
.copyrow button:hover{background:rgba(255,255,255,.1)}
.amount{
  font-family:var(--mono);font-size:26px;color:#67e8f9;letter-spacing:-.01em;
}
.warn{font-size:12px;color:var(--warn);line-height:1.7;margin:14px 0 0}
.statusline{
  display:flex;align-items:center;gap:9px;font-size:13px;color:var(--dim);
  margin-top:20px;padding-top:16px;border-top:1px solid var(--line);
}
.dot{width:7px;height:7px;border-radius:50%;background:var(--warn);box-shadow:0 0 10px var(--warn)}
.dot.ok{background:var(--ok);box-shadow:0 0 10px var(--ok)}
.dot.bad{background:var(--bad);box-shadow:0 0 10px var(--bad)}
.spin{width:13px;height:13px;border-radius:50%;border:2px solid rgba(255,255,255,.2);
  border-top-color:var(--cyan);animation:spin .8s linear infinite}
.keybox{
  font-family:var(--mono);font-size:19px;letter-spacing:.08em;color:#a5f3fc;
  padding:16px;border-radius:12px;background:rgba(34,211,238,.06);
  border:1px dashed rgba(34,211,238,.4);text-align:center;margin:6px 0 16px;word-break:break-all;
}
.dl{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.note{font-size:12px;color:var(--dim);line-height:1.75}

@media (max-width:1000px){
  .setup-inner{padding:40px 26px 34px}
  .setup-pillars{grid-template-columns:1fr;gap:10px}
  .hero{grid-template-columns:1fr;padding-top:14px}
  .hero-art{display:none}
  .plans{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  h1{font-size:38px}
}
@media (max-width:620px){
  .nav nav a:not(.ghost){display:none}
  .setup{padding:0 16px}
  .setup-inner{padding:32px 20px 28px;border-radius:20px}
  .setup-lead{font-size:13.5px;line-height:1.8}
  .setup-actions{flex-direction:column;gap:10px}
  .setup-actions .btn{width:100%}
  .pillar{padding:15px 16px}
  .plans{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .pay-grid{grid-template-columns:1fr}
  .metrics{gap:20px}
  .modal-card{padding:22px}
}