:root{
  --bg:#0b0d17; --bg2:#11142a; --card:#161a33; --line:#252a4a;
  --text:#e9ecff; --muted:#9aa1c7; --pri:#6c5cff; --pri2:#22d3ee; --ok:#22c55e; --usdt:#26a17b; --err:#ef4444;
  --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;display:flex;flex-direction:column}
main{flex:1}
a{color:inherit;text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.grad{background:linear-gradient(90deg,var(--pri),var(--pri2));-webkit-background-clip:text;background-clip:text;color:transparent}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:999px;font-weight:600;font-size:15px;cursor:pointer;border:1px solid transparent;transition:.2s;font-family:inherit;background:none;color:inherit}
.btn-pri{background:linear-gradient(90deg,var(--pri),#8b5cf6);color:#fff;box-shadow:0 8px 30px rgba(108,92,255,.35)}
.btn-pri:hover{transform:translateY(-2px);box-shadow:0 12px 36px rgba(108,92,255,.5)}
.btn-ghost{border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--pri);color:#fff}
.btn-tg{background:linear-gradient(135deg,#229ED9,#1c7fd1);color:#fff;box-shadow:0 8px 26px rgba(34,158,217,.4)}
.btn-sm{padding:7px 14px;font-size:13px}
.inline{display:inline}
section{padding:96px 0}
.sec-title{text-align:center;margin-bottom:56px}
.sec-title h2{font-size:36px;margin-bottom:12px}
.sec-title p{color:var(--muted);font-size:16px}

/* nav */
header{position:sticky;top:0;z-index:50;background:rgba(11,13,23,.78);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.05)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.logo{display:flex;align-items:center}
.logo img{height:38px;width:auto;display:block}
.nav ul{display:flex;gap:28px;list-style:none}
.nav ul a{color:var(--muted);font-size:15px}
.nav ul a:hover{color:#fff}
.nav .act{display:flex;gap:10px;align-items:center}
.nav .act .btn{padding:9px 18px;font-size:14px}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:24px;cursor:pointer}
.m-only{display:none}

/* flash */
.flashes{padding-top:20px}
.flash{padding:12px 18px;border-radius:12px;margin-bottom:10px;font-size:14.5px;border:1px solid}
.flash-success{background:rgba(34,197,94,.1);border-color:rgba(34,197,94,.4);color:#bbf7d0}
.flash-error{background:rgba(239,68,68,.1);border-color:rgba(239,68,68,.4);color:#fecaca}
.flash-banned{background:rgba(239,68,68,.15);border-color:var(--err);color:#fff;font-weight:700;font-size:16px;text-align:center}
.flash-banned a{text-decoration:underline}
.flash-info{background:rgba(108,92,255,.1);border-color:rgba(108,92,255,.4);color:#ddd6fe}

/* hero */
.hero{position:relative;overflow:hidden;padding:110px 0 120px}
.hero::before{content:"";position:absolute;width:700px;height:700px;left:-200px;top:-260px;background:radial-gradient(circle,rgba(108,92,255,.35),transparent 65%)}
.hero::after{content:"";position:absolute;width:600px;height:600px;right:-150px;bottom:-250px;background:radial-gradient(circle,rgba(34,211,238,.22),transparent 65%)}
.hero .wrap{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(108,92,255,.12);border:1px solid rgba(108,92,255,.35);color:#c4bcff;font-size:13px;margin-bottom:22px}
.tag b{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px var(--ok)}
.hero h1{font-size:54px;line-height:1.15;margin-bottom:22px;letter-spacing:-1px}
.hero p.lead{color:var(--muted);font-size:18px;margin-bottom:34px;max-width:540px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.hero .trust{display:flex;gap:28px;margin-top:40px;color:var(--muted);font-size:14px;flex-wrap:wrap}
.hero .trust span::before{content:"✓ ";color:var(--ok);font-weight:700}
.notice{margin-top:22px;display:inline-block;padding:10px 16px;border-radius:12px;background:rgba(250,204,21,.1);border:1px solid rgba(250,204,21,.35);color:#fde68a;font-size:14.5px}
.notice a{color:#fff;font-weight:700;text-decoration:underline}

/* card mockups */
.cards{position:relative;height:420px}
.vcard{position:absolute;width:360px;height:224px;border-radius:20px;padding:26px;color:#fff;box-shadow:0 30px 60px rgba(0,0,0,.5);display:flex;flex-direction:column;justify-content:space-between;transition:.4s}
.vcard .chip{width:44px;height:32px;border-radius:7px;background:linear-gradient(135deg,#f5d77b,#c49a3a)}
.vcard .num{font-family:"SF Mono",Consolas,monospace;font-size:20px;letter-spacing:3px}
.vcard .row{display:flex;justify-content:space-between;align-items:flex-end;font-size:12px;opacity:.9}
.vcard .row b{display:block;font-size:14px;letter-spacing:1px}
.vcard .net{font-size:22px;font-weight:800;font-style:italic}
.c1{background:linear-gradient(135deg,#6c5cff,#3b1fa8);top:20px;left:10px;transform:rotate(-8deg)}
.c2{background:linear-gradient(135deg,#0ea5e9,#0e7490);top:120px;left:120px;transform:rotate(4deg);z-index:2}
.c3{background:linear-gradient(135deg,#1f2937,#0b0d17);border:1px solid #333a66;top:230px;left:30px;transform:rotate(-3deg);z-index:1}
.cards:hover .c1{transform:rotate(-12deg) translate(-20px,-10px)}
.cards:hover .c2{transform:rotate(6deg) translate(20px,0)}

/* stats */
.stats{padding:0;margin-top:-40px;position:relative;z-index:2}
.stats .grid{display:grid;grid-template-columns:repeat(4,1fr);background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.stats .item{padding:30px;text-align:center;border-right:1px solid var(--line)}
.stats .item:last-child{border-right:0}
.stats .item b{display:block;font-size:34px;font-weight:800}
.stats .item span{color:var(--muted);font-size:14px}

/* features */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.25s}
.feat:hover{border-color:rgba(108,92,255,.6);transform:translateY(-4px)}
.feat .ic{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;font-size:22px;background:rgba(108,92,255,.15);margin-bottom:18px}
.feat h3{font-size:19px;margin-bottom:8px}
.feat p{color:var(--muted);font-size:14.5px}

/* tables */
.alt{background:var(--bg2)}
.tbl-wrap{overflow-x:auto}
.tbl{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.tbl th,.tbl td{padding:14px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl th{color:var(--muted);font-weight:500;background:rgba(255,255,255,.02)}
.tbl tr:last-child td{border-bottom:0}
.tbl tbody tr:hover{background:rgba(108,92,255,.06)}
.tbl .empty{text-align:center;color:var(--muted);padding:30px}
.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}
.p-visa{background:rgba(59,130,246,.15);color:#7fb2ff}
.p-mc{background:rgba(249,115,22,.15);color:#ffa66b}
.p-ok{background:rgba(34,197,94,.15);color:#6ee7a0}
.p-warn{background:rgba(250,204,21,.15);color:#fde68a}
.p-err{background:rgba(239,68,68,.15);color:#fca5a5}
.p-muted{background:rgba(154,161,199,.15);color:var(--muted)}

/* scenes */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.scene{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;text-align:center}
.scene .em{font-size:34px;margin-bottom:10px}
.scene h4{font-size:16px;margin-bottom:4px}
.scene p{color:var(--muted);font-size:13.5px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:s}
.step{position:relative;padding:34px 28px;background:linear-gradient(180deg,var(--card),transparent);border:1px solid var(--line);border-radius:var(--radius)}
.step::before{counter-increment:s;content:"0" counter(s);font-size:44px;font-weight:800;opacity:.18;position:absolute;right:22px;top:12px}
.step h3{font-size:20px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14.5px}

/* plans */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.plans4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-bottom:40px}
.plan{position:relative;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:30px 26px;display:flex;flex-direction:column;transition:.25s}
.plan:hover{border-color:rgba(108,92,255,.6)}
.plan.hot{border-color:var(--pri);box-shadow:0 0 0 1px var(--pri),0 20px 60px rgba(108,92,255,.25)}
.badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:linear-gradient(90deg,var(--pri),var(--pri2));padding:4px 14px;border-radius:999px;font-size:12px;font-weight:700;white-space:nowrap}
.plan .em{font-size:30px;margin-bottom:8px}
.plan h3{font-size:19px}
.plan .desc{color:var(--muted);font-size:14px;margin:4px 0 18px}
.plan .price{font-size:42px;font-weight:800;line-height:1.1}
.plan .price small{font-size:15px;color:var(--muted);font-weight:500}
.plan ul{list-style:none;margin:20px 0 24px;flex:1}
.plan li{padding:6px 0;font-size:14.5px;color:#cfd3f5}
.plan li::before{content:"✓";color:var(--ok);margin-right:10px;font-weight:700}
.plan .btn,.plan form{width:100%}
.amt{display:flex;align-items:center;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:0 14px;margin-top:4px}
.amt:focus-within{border-color:var(--pri)}
.amt span{color:var(--muted);font-weight:700;font-size:20px}
.amt input{flex:1;width:100%;background:none;border:0;outline:0;color:#fff;font-size:24px;font-weight:800;padding:10px 8px;font-family:inherit}
.amt input::-webkit-outer-spin-button,.amt input::-webkit-inner-spin-button{-webkit-appearance:none}
.quick{display:flex;gap:8px;margin-top:10px}
.quick button{flex:1;padding:6px 0;border-radius:9px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer;font-family:inherit}
.quick button:hover{border-color:var(--pri);color:#fff}
.calc{margin-top:12px;font-size:13.5px;color:var(--muted);background:var(--bg);border-radius:10px;padding:10px 12px}
.calc b{color:#6ee7b7}
.vip{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;background:linear-gradient(135deg,rgba(108,92,255,.25),rgba(34,211,238,.15));border:1px solid rgba(108,92,255,.45);border-radius:20px;padding:28px 32px;margin-bottom:80px}
.vip h3{font-size:22px;margin-bottom:4px}
.vip p{color:#cfd3f5}
.page-head{text-align:center;padding:56px 0 36px}
.page-head h1{font-size:40px;margin-bottom:10px}
.page-head p{color:var(--muted)}

/* forms */
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:6px}
.input,.field input,.field select,.field textarea{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:12px 14px;color:#fff;font-size:15px;font-family:inherit;outline:0}
.input:focus,.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--pri)}
.auth{max-width:440px;margin:60px auto 100px;background:var(--card);border:1px solid var(--line);border-radius:22px;padding:38px 34px}
.auth h1{font-size:28px;margin-bottom:6px}
.auth .sub{color:var(--muted);margin-bottom:26px;font-size:14.5px}
.auth .btn{width:100%;margin-top:6px}
.auth .alt-link{text-align:center;color:var(--muted);margin-top:18px;font-size:14px}
.auth .alt-link a{color:#a99eff}

/* pay */
.paybox{display:grid;grid-template-columns:1fr 1.15fr;background:var(--card);border:1px solid var(--line);border-radius:24px;overflow:hidden;margin-bottom:24px}
.paybox .left{padding:34px;border-right:1px solid var(--line);display:flex;flex-direction:column;align-items:center;text-align:center}
.paybox .right{padding:34px}
.netbadge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(38,161,123,.15);border:1px solid rgba(38,161,123,.4);color:#6ee7b7;font-size:13px;font-weight:600;margin-bottom:20px}
.netbadge b{width:20px;height:20px;border-radius:50%;background:var(--usdt);color:#fff;display:grid;place-items:center;font-size:12px}
.qr{background:#fff;padding:14px;border-radius:18px;box-shadow:0 20px 50px rgba(0,0,0,.45)}
.qr img{display:block;width:220px;height:220px}
.scan{color:var(--muted);font-size:13.5px;margin-top:14px}
.kv{display:flex;justify-content:space-between;align-items:center;padding:11px 0;border-bottom:1px dashed var(--line);font-size:15px;gap:12px}
.kv span{color:var(--muted)}
.total{font-size:34px;font-weight:800;color:#6ee7b7}
.total small{font-size:15px;color:var(--muted);margin-left:4px}
.label{color:var(--muted);font-size:14px;margin:20px 0 8px}
.addr{display:flex;align-items:center;gap:10px;background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:12px 12px 12px 16px}
.addr code{flex:1;font-family:"SF Mono",Consolas,monospace;font-size:15px;word-break:break-all;color:#fff}
.copy{flex:none;padding:9px 18px;border-radius:10px;border:0;background:var(--usdt);color:#fff;font-weight:700;cursor:pointer;font-family:inherit;font-size:14px;transition:.2s}
.copy.done{background:var(--ok)}
.warn{margin-top:18px;padding:14px 16px;border-radius:12px;background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.35);color:#fecaca;font-size:13.5px}
.warn b{color:#fff}
.panel{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:26px 30px;margin-bottom:24px}
.panel h3{font-size:18px;margin-bottom:14px}
.panel ol{padding-left:20px;color:#cfd3f5}
.panel li{padding:4px 0}
.panel li b{color:#fde68a}
.txform{display:flex;gap:10px;margin-top:14px}
.txform input{flex:1}
.actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:90px}
.toast{position:fixed;left:50%;top:90px;transform:translate(-50%,-20px);background:var(--ok);color:#fff;padding:12px 22px;border-radius:12px;font-weight:600;opacity:0;pointer-events:none;transition:.3s;z-index:200}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* account */
.acc-head{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;background:linear-gradient(135deg,rgba(108,92,255,.25),rgba(34,211,238,.12));border:1px solid rgba(108,92,255,.4);border-radius:22px;padding:30px 34px;margin:36px 0 30px}
.acc-head .email{color:var(--muted);font-size:14px}
.acc-head .bal{font-size:40px;font-weight:800}
.acc-head .bal small{font-size:16px;color:var(--muted);margin-left:6px}
.h2{font-size:22px;margin:34px 0 16px;display:flex;align-items:center;gap:10px}
.mycards{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:22px}
.mycard{position:relative;border-radius:20px;padding:24px 26px;color:#fff;min-height:214px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 20px 40px rgba(0,0,0,.4);background:linear-gradient(135deg,#6c5cff,#3b1fa8)}
.mycard.MASTERCARD{background:linear-gradient(135deg,#0ea5e9,#0e7490)}
.mycard.physical{background:linear-gradient(135deg,#334155,#0f172a);border:1px solid #475569}
.mycard .top{display:flex;justify-content:space-between;align-items:center}
.mycard .net{font-size:20px;font-weight:800;font-style:italic}
.mycard .num{font-family:"SF Mono",Consolas,monospace;font-size:21px;letter-spacing:2px;margin:18px 0 14px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.mycard .meta{display:flex;gap:30px;font-size:12px;opacity:.95}
.mycard .meta b{display:block;font-size:16px;letter-spacing:1px;font-family:"SF Mono",Consolas,monospace}
.mini-btn{border:1px solid rgba(255,255,255,.4);background:rgba(255,255,255,.12);color:#fff;border-radius:8px;padding:3px 9px;font-size:12px;cursor:pointer;font-family:inherit}
.mini-btn:hover{background:rgba(255,255,255,.25)}
.empty-card{border:2px dashed var(--line);border-radius:20px;padding:40px;text-align:center;color:var(--muted)}

/* faq */
.faq{max-width:820px;margin:0 auto}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:12px;padding:0 22px}
.faq summary{cursor:pointer;list-style:none;padding:20px 0;font-weight:600;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--muted);transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--muted);padding-bottom:20px;font-size:14.5px}

/* cta */
.cta-box{background:linear-gradient(135deg,#3b1fa8,#6c5cff 50%,#0e7490);border-radius:24px;padding:64px 40px;text-align:center}
.cta-box h2{font-size:34px;margin-bottom:12px}
.cta-box p{opacity:.85;margin-bottom:28px}
.cta-box .btn{background:#fff;color:#2a1d8a}

/* footer */
footer{border-top:1px solid var(--line);padding:56px 0 28px;color:var(--muted);font-size:14px}
footer.mini{padding:24px 0}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:40px}
.foot h5{color:var(--text);font-size:15px;margin-bottom:14px}
.foot a{display:block;padding:4px 0}
.foot a:hover{color:#fff}
.copyright{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
footer.mini .copyright{border:0;padding:0}

/* 浮动客服 */
.kefu{position:fixed;right:22px;bottom:26px;z-index:99;display:flex;align-items:center;gap:10px;padding:14px 22px 14px 16px;border-radius:999px;background:linear-gradient(135deg,#229ED9,#1c7fd1);color:#fff;font-weight:700;font-size:16px;box-shadow:0 10px 30px rgba(34,158,217,.55);animation:kefu-bob 2.4s ease-in-out infinite}
.kefu::before{content:"";position:absolute;inset:0;border-radius:999px;border:2px solid #229ED9;animation:kefu-ping 1.8s ease-out infinite}
.kefu svg{width:28px;height:28px;flex:none}
.kefu .dot{position:absolute;top:-4px;right:-2px;width:16px;height:16px;border-radius:50%;background:#ef4444;border:2px solid var(--bg)}
.kefu:hover{transform:scale(1.06)}
@keyframes kefu-ping{0%{transform:scale(1);opacity:.8}100%{transform:scale(1.35);opacity:0}}
@keyframes kefu-bob{0%,100%{translate:0 0}50%{translate:0 -5px}}

.rv{opacity:0;transform:translateY(24px);transition:.7s ease}
.rv.in{opacity:1;transform:none}

@media(max-width:1020px){.plans4{grid-template-columns:1fr 1fr;row-gap:30px}}
@media(max-width:960px){
  .hero .wrap{grid-template-columns:1fr}
  .cards{height:380px;max-width:480px;margin:0 auto;width:100%}
  .feat-grid,.price-grid,.steps{grid-template-columns:1fr 1fr}
  .scene-grid{grid-template-columns:1fr 1fr}
  .stats .grid{grid-template-columns:1fr 1fr}
  .stats .item:nth-child(2){border-right:0}
  .stats .item:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .foot{grid-template-columns:1fr 1fr}
  .nav ul{display:none}
  .nav ul.open{display:flex;flex-direction:column;position:absolute;top:68px;left:0;right:0;background:var(--bg2);padding:20px 24px;gap:16px;border-bottom:1px solid var(--line)}
  .menu-btn{display:block}
  .m-only{display:list-item}
  .paybox{grid-template-columns:1fr}
  .paybox .left{border-right:0;border-bottom:1px solid var(--line)}
}
@media(max-width:600px){
  .hero h1{font-size:36px}
  .sec-title h2,.page-head h1{font-size:28px}
  .feat-grid,.price-grid,.steps,.plans4{grid-template-columns:1fr}
  .vcard{width:290px;height:182px;padding:20px}
  .vcard .num{font-size:16px}
  .c2{left:40px}
  .nav .act .btn-ghost{display:none}
  .logo img{height:32px}
  .addr,.txform{flex-direction:column;align-items:stretch}
  .mycards{grid-template-columns:1fr}
  .mycard .num{font-size:17px}
  .kefu{right:14px;bottom:16px;padding:12px 18px 12px 14px;font-size:15px}
  .auth{padding:30px 22px;margin-top:30px}
}