/* =========================================================
   39Visa 设计系统 v7
   深海军蓝 + 信号蓝 + USDT 绿；金属卡面是唯一的“重点”
   ========================================================= */
@font-face{font-family:"Manrope";src:url(fonts/manrope-latin-500-normal.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Manrope";src:url(fonts/manrope-latin-700-normal.woff2) format("woff2");font-weight:600 700;font-display:swap}
@font-face{font-family:"Manrope";src:url(fonts/manrope-latin-800-normal.woff2) format("woff2");font-weight:800;font-display:swap}

:root{
  --ink:#0E1530;          /* 深海军蓝：主暗面 */
  --ink-2:#18213F;
  --ink-3:#26304F;
  --porcelain:#F3F5F9;    /* 应用底色 */
  --paper:#FFFFFF;
  --blue:#3D5AFE;         /* 主操作 */
  --blue-d:#2B45DB;
  --blue-soft:#E8ECFF;
  --usdt:#1E9E74;         /* 余额 / 成功 */
  --usdt-soft:#E3F5EE;
  --brass:#C9A65A;        /* 只用于卡片芯片等细节 */
  --red:#D93B3B; --red-soft:#FCEAEA;
  --amber:#B7791F; --amber-soft:#FBF1DE;
  --text:#1B2133;
  --muted:#667089;
  --line:#E2E6EF;
  --line-2:#EDF0F5;

  --font:"Manrope","PingFang SC","HarmonyOS Sans SC","MiSans","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --r-sm:8px; --r:14px; --r-lg:22px;
  --shadow-1:0 1px 2px rgba(14,21,48,.06),0 2px 8px rgba(14,21,48,.04);
  --shadow-2:0 24px 60px -20px rgba(14,21,48,.35);
  --wrap:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--porcelain);color:var(--text);font-size:15px;line-height:1.65;font-feature-settings:"tnum" 1;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:4px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.muted{color:var(--muted)}
.hide{display:none!important}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:999px;font-weight:700;font-size:15px;white-space:nowrap;transition:background .15s,border-color .15s,color .15s,transform .1s}
.btn:active{transform:translateY(1px)}
.btn-lg{height:56px;padding:0 32px;font-size:17px}
.btn-sm{height:34px;padding:0 14px;font-size:13px}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-d)}
.btn-ghost{border:1px solid var(--line);background:var(--paper);color:var(--text)}
.btn-ghost:hover{border-color:#C8CEDC}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:#E9ECF4}
.btn-line-light{border:1px solid rgba(255,255,255,.28);color:#fff}
.btn-line-light:hover{border-color:#fff}
.btn-danger{background:var(--red-soft);color:var(--red)}
.btn-ok{background:var(--usdt-soft);color:var(--usdt)}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;pointer-events:none}

/* ---------- 表单 ---------- */
.field{display:block;margin-bottom:18px}
.field>span{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:8px}
.input,.field input,.field select,.field textarea{width:100%;height:52px;padding:0 16px;border:1px solid var(--line);border-radius:12px;background:var(--paper);font-size:16px;transition:border-color .15s,box-shadow .15s}
.field textarea{height:auto;min-height:96px;padding:14px 16px;resize:vertical}
.input:focus,.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px var(--blue-soft)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.hint{font-size:13px;color:var(--muted)}

/* ---------- 金属卡面（全站唯一的“重点元素”） ---------- */
.vcard{--w:380px;position:relative;width:var(--w);aspect-ratio:1.586;border-radius:calc(var(--w)*.055);padding:calc(var(--w)*.065);color:#fff;overflow:hidden;
  background:
    radial-gradient(120% 90% at 0% 0%,rgba(255,255,255,.22),transparent 55%),
    repeating-linear-gradient(100deg,rgba(255,255,255,.035) 0 2px,transparent 2px 5px),
    linear-gradient(135deg,#2A3566 0%,#141B3B 55%,#0A0F24 100%);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.14),var(--shadow-2);
  display:flex;flex-direction:column;justify-content:space-between;font-family:var(--font)}
.vcard.t-ai{background:radial-gradient(120% 90% at 0% 0%,rgba(255,255,255,.25),transparent 55%),repeating-linear-gradient(100deg,rgba(255,255,255,.035) 0 2px,transparent 2px 5px),linear-gradient(135deg,#3D5AFE 0%,#2733A8 60%,#151C60 100%)}
.vcard.t-ad{background:radial-gradient(120% 90% at 0% 0%,rgba(255,255,255,.25),transparent 55%),repeating-linear-gradient(100deg,rgba(255,255,255,.035) 0 2px,transparent 2px 5px),linear-gradient(135deg,#1E9E74 0%,#11694F 60%,#083B2D 100%)}
.vcard.t-physical{background:radial-gradient(120% 90% at 0% 0%,rgba(255,255,255,.55),transparent 55%),repeating-linear-gradient(100deg,rgba(0,0,0,.035) 0 2px,transparent 2px 5px),linear-gradient(135deg,#D9DCE3 0%,#A9AEBB 55%,#7C8291 100%);color:#151B2F}
.vcard-top{display:flex;justify-content:space-between;align-items:flex-start}
.vcard-brand{font-weight:800;font-size:calc(var(--w)*.06);letter-spacing:-.02em}
.vcard-kind{font-size:calc(var(--w)*.032);opacity:.8;font-weight:600;text-align:right}
.vcard-chip{width:calc(var(--w)*.12);aspect-ratio:1.3;border-radius:calc(var(--w)*.016);background:linear-gradient(135deg,#E7CF92,var(--brass) 50%,#9C7C36);position:relative;box-shadow:inset 0 0 0 1px rgba(0,0,0,.15)}
.vcard-chip:after{content:"";position:absolute;inset:28% 0;border-top:1px solid rgba(0,0,0,.25);border-bottom:1px solid rgba(0,0,0,.25)}
.vcard-no{font-size:calc(var(--w)*.062);font-weight:700;letter-spacing:.08em;font-variant-numeric:tabular-nums;text-shadow:0 1px 0 rgba(0,0,0,.25)}
.vcard-bot{display:flex;justify-content:space-between;align-items:flex-end;font-size:calc(var(--w)*.034)}
.vcard-bot small{display:block;opacity:.65;font-size:.8em}
.vcard-bot b{font-weight:700;letter-spacing:.04em}
.vcard-net{font-weight:800;font-style:italic;font-size:calc(var(--w)*.075);letter-spacing:-.02em}

/* 自适应卡面：父容器加 .cq，卡面宽度随容器缩放，最大 400px */
.cq{container-type:inline-size;display:flex;justify-content:center;width:100%}
.cq>.vcard{--w:min(400px,100cqw)}

/* =========================================================
   官网
   ========================================================= */
.site-nav{position:sticky;top:0;z-index:50;background:rgba(14,21,48,.86);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid rgba(255,255,255,.06)}
.site-nav .wrap{display:flex;align-items:center;height:76px;gap:40px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;letter-spacing:-.03em;color:#fff}
.logo i{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--blue);font-style:normal;font-size:15px}
.logo.dark{color:var(--ink)}
.site-nav nav{display:flex;gap:32px;flex:1}
.site-nav nav a{color:rgba(255,255,255,.72);font-weight:600;font-size:15px}
.site-nav nav a:hover{color:#fff}
.site-nav .act{display:flex;gap:12px}

.hero{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:auto -10% -40% 30%;height:120%;background:radial-gradient(closest-side,rgba(61,90,254,.38),transparent);pointer-events:none}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;min-height:calc(100vh - 76px);max-height:880px;padding-top:72px;padding-bottom:96px;position:relative}
.hero h1{font-size:clamp(44px,5.6vw,80px);line-height:1.08;font-weight:800;letter-spacing:-.035em;margin-bottom:28px}
.hero p.lead{font-size:20px;line-height:1.7;color:rgba(255,255,255,.72);max-width:30em;margin-bottom:44px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-facts{display:flex;gap:48px;margin-top:64px;padding-top:28px;border-top:1px solid rgba(255,255,255,.1)}
.hero-facts b{display:block;font-size:30px;font-weight:800;letter-spacing:-.02em}
.hero-facts span{font-size:14px;color:rgba(255,255,255,.55)}
.stage{position:relative;height:520px;perspective:1400px}
.stage .vcard{position:absolute;--w:420px;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.stage .c1{right:4%;top:6%;transform:rotate(-14deg) translateZ(-60px);opacity:.75}
.stage .c2{right:16%;top:22%;transform:rotate(-4deg)}
.stage .c3{right:0;top:44%;transform:rotate(7deg) translateZ(40px)}
.stage.lift .c1{transform:rotate(-18deg) translate(-20px,-30px)}
.stage.lift .c3{transform:rotate(10deg) translate(20px,24px)}

.sec{padding:128px 0}
.sec-head{max-width:720px;margin-bottom:64px}
.sec-head h2{font-size:clamp(32px,3.6vw,48px);line-height:1.15;font-weight:800;letter-spacing:-.03em;margin-bottom:16px}
.sec-head p{font-size:18px;color:var(--muted)}

/* 价目表：按行而不是卡片 */
.pricelist{background:var(--paper);border-radius:var(--r-lg);box-shadow:var(--shadow-1);overflow:hidden}
.price-row{display:grid;grid-template-columns:200px 1fr 160px 150px;align-items:center;gap:32px;padding:32px 40px;border-top:1px solid var(--line-2)}
.price-row:first-child{border-top:0}
.price-row .vcard{--w:180px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.14),0 10px 24px -12px rgba(14,21,48,.5)}
.price-row h3{font-size:22px;font-weight:800;letter-spacing:-.02em;margin-bottom:6px}
.price-row p{color:var(--muted)}
.price-row .fee{text-align:right}
.price-row .fee b{font-size:36px;font-weight:800;letter-spacing:-.03em}
.price-row .fee span{display:block;font-size:13px;color:var(--muted)}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:2px solid var(--ink)}
.step{padding:36px 36px 0 0}
.step .n{font-size:64px;font-weight:800;letter-spacing:-.04em;color:var(--blue);line-height:1;margin-bottom:24px}
.step h3{font-size:22px;font-weight:800;margin-bottom:10px}
.step p{color:var(--muted);max-width:22em}

.dark-band{background:var(--ink);color:#fff}
.dark-band .sec-head p{color:rgba(255,255,255,.6)}
.uses{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.1);border-radius:var(--r-lg);overflow:hidden}
.use{background:var(--ink-2);padding:40px 32px;min-height:240px;display:flex;flex-direction:column}
.use h3{font-size:22px;font-weight:800;margin-bottom:12px}
.use p{color:rgba(255,255,255,.6);flex:1}
.use em{font-style:normal;font-size:13px;color:rgba(255,255,255,.4);margin-top:24px}

.trust{display:grid;grid-template-columns:1fr 1fr;gap:96px;align-items:start}
.trust-list{display:grid;gap:0}
.trust-list div{padding:28px 0;border-top:1px solid var(--line)}
.trust-list h3{font-size:19px;font-weight:800;margin-bottom:6px}
.trust-list p{color:var(--muted)}

.faq details{border-top:1px solid var(--line);padding:24px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{font-size:19px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:24px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";font-size:26px;font-weight:500;color:var(--muted);line-height:1}
.faq details[open] summary:after{content:"−"}
.faq details p{margin-top:12px;color:var(--muted);max-width:52em}

.cta-band{background:var(--blue);color:#fff;border-radius:28px;padding:80px;display:flex;justify-content:space-between;align-items:center;gap:40px}
.cta-band h2{font-size:clamp(30px,3.4vw,46px);font-weight:800;letter-spacing:-.03em;line-height:1.15}
.cta-band p{color:rgba(255,255,255,.75);margin-top:12px;font-size:17px}

.site-foot{background:var(--ink);color:rgba(255,255,255,.55);padding:72px 0 40px;margin-top:128px}
.site-foot .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.08)}
.site-foot h4{color:#fff;font-size:15px;margin-bottom:16px}
.site-foot a{display:block;margin-bottom:10px}
.site-foot a:hover{color:#fff}
.site-foot .legal{padding-top:28px;font-size:13px}

/* =========================================================
   登录 / 注册（左右分栏）
   ========================================================= */
.auth{display:grid;grid-template-columns:1fr 1fr;min-height:100vh}
.auth-side{background:var(--ink);color:#fff;padding:48px 64px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.auth-side:before{content:"";position:absolute;inset:30% -30% -30% 0;background:radial-gradient(closest-side,rgba(61,90,254,.35),transparent)}
.auth-side>*{position:relative}
.auth-side h2{font-size:44px;line-height:1.15;font-weight:800;letter-spacing:-.03em;margin-bottom:16px}
.auth-side p{color:rgba(255,255,255,.6);font-size:17px;max-width:24em}
.auth-side .vcard{--w:400px;transform:rotate(-6deg);margin:48px 0 0 24px}
.auth-main{display:flex;align-items:center;justify-content:center;padding:48px 32px;background:var(--paper)}
.auth-box{width:100%;max-width:420px}
.auth-box h1{font-size:34px;font-weight:800;letter-spacing:-.03em;margin-bottom:8px}
.auth-box .sub{color:var(--muted);margin-bottom:36px}
.auth-box .alt{margin-top:28px;text-align:center;color:var(--muted)}
.auth-box .alt a{color:var(--blue);font-weight:700}

/* =========================================================
   应用外壳（用户中心 + 后台共用）
   ========================================================= */
.app{display:grid;grid-template-columns:264px 1fr;min-height:100vh;background:linear-gradient(90deg,var(--ink) 264px,transparent 264px)}
.side{background:var(--ink);color:#fff;padding:28px 18px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}
.side .logo{padding:0 12px 32px}
.side .tag{font-size:12px;font-weight:600;color:rgba(255,255,255,.45);padding:0 14px;margin:8px 0 10px}
.side nav a{display:flex;align-items:center;gap:14px;height:48px;padding:0 14px;border-radius:12px;color:rgba(255,255,255,.66);font-weight:600;font-size:15px;margin-bottom:4px}
.side nav a svg{width:20px;height:20px;flex:none}
.side nav a:hover{color:#fff;background:rgba(255,255,255,.05)}
.side nav a.on{background:var(--blue);color:#fff}
.side .foot{margin-top:auto;padding:16px 14px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:rgba(255,255,255,.5)}
.side .foot b{display:block;color:#fff;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.side .foot button{margin-top:10px;color:rgba(255,255,255,.7);font-weight:600}
.side .foot button:hover{color:#fff}

.main{min-width:0}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;height:84px;padding:0 48px;border-bottom:1px solid var(--line);background:var(--paper);position:sticky;top:0;z-index:20}
.topbar h1{font-size:24px;font-weight:800;letter-spacing:-.02em}
.topbar .right{display:flex;align-items:center;gap:12px}
.bal-pill{display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:999px;background:var(--usdt-soft);color:var(--usdt);font-weight:800}
.menu-btn{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);place-items:center}
.content{padding:40px 48px 80px;max-width:1360px}

.panel{background:var(--paper);border-radius:var(--r-lg);box-shadow:var(--shadow-1);padding:32px}
.panel+.panel,.panel-gap{margin-top:24px}
.panel-h{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}
.panel-h h2{font-size:20px;font-weight:800;letter-spacing:-.01em}
.panel-h .tools{display:flex;gap:10px;align-items:center;flex-wrap:wrap}

/* 总览英雄区 */
.overview{display:grid;grid-template-columns:1.25fr 1fr;gap:24px}
.balance-hero{background:var(--ink);color:#fff;border-radius:var(--r-lg);padding:40px;display:flex;flex-direction:column;justify-content:space-between;min-height:300px;position:relative;overflow:hidden}
.balance-hero:after{content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;background:radial-gradient(closest-side,rgba(30,158,116,.45),transparent)}
.balance-hero>*{position:relative;z-index:1}
.balance-hero .lbl{color:rgba(255,255,255,.6);font-weight:600}
.balance-hero .amt{font-size:clamp(48px,5vw,72px);font-weight:800;letter-spacing:-.04em;line-height:1.05;margin:12px 0 6px}
.balance-hero .amt small{font-size:.32em;font-weight:700;color:rgba(255,255,255,.6);margin-left:10px;letter-spacing:0}
.balance-hero .acts{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}

.kpis{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.kpi{background:var(--paper);border-radius:var(--r-lg);box-shadow:var(--shadow-1);padding:28px;display:flex;flex-direction:column;justify-content:space-between;min-height:138px}
.kpi span{color:var(--muted);font-weight:600;font-size:14px}
.kpi b{font-size:34px;font-weight:800;letter-spacing:-.03em;line-height:1.1}
.kpi b small{font-size:14px;color:var(--muted);font-weight:700;margin-left:4px;letter-spacing:0}
.kpi-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}

/* 卡包 */
.wallet{display:flex;gap:28px;overflow-x:auto;padding:8px 4px 20px;scroll-snap-type:x mandatory}
.wallet .item{scroll-snap-align:start;flex:none}
.wallet .vcard{--w:340px}
.wallet .meta{display:flex;justify-content:space-between;align-items:center;margin-top:14px;padding:0 4px}
.wallet .meta button{color:var(--blue);font-weight:700;font-size:14px}
.empty{padding:56px 24px;text-align:center;border:1.5px dashed var(--line);border-radius:var(--r)}
.empty h3{font-size:18px;font-weight:800;margin-bottom:6px}
.empty p{color:var(--muted);margin-bottom:20px}

/* 开卡类型选择 */
.types{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.type{position:relative;border:1.5px solid var(--line);border-radius:var(--r);padding:24px;cursor:pointer;transition:border-color .15s,box-shadow .15s;background:var(--paper)}
.type:hover{border-color:#C8CEDC}
.type input{position:absolute;opacity:0}
.type{container-type:inline-size}
.type .vcard{--w:100cqw;margin-bottom:20px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.14)}
.type h3{font-size:18px;font-weight:800}
.type p{color:var(--muted);font-size:14px;margin:4px 0 12px}
.type .fee{font-size:24px;font-weight:800}
.type .fee small{font-size:13px;color:var(--muted);font-weight:700}
.type:has(input:checked){border-color:var(--blue);box-shadow:0 0 0 4px var(--blue-soft)}

/* 表格 */
.tbl-wrap{overflow-x:auto;margin:0 -32px;padding:0 32px}
table.tbl{width:100%;border-collapse:collapse;font-size:14px;min-width:640px}
.tbl th{text-align:left;font-weight:700;color:var(--muted);font-size:13px;padding:0 16px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl td{padding:16px;border-bottom:1px solid var(--line-2);vertical-align:middle}
.tbl tr:last-child td{border-bottom:0}
.tbl tbody tr:hover td{background:#FAFBFD}
.tbl th:first-child,.tbl td:first-child{padding-left:0}
.tbl th:last-child,.tbl td:last-child{padding-right:0}
.tbl .r{text-align:right}
.tbl .acts{display:flex;gap:6px;justify-content:flex-end;flex-wrap:wrap}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px}
.trunc{max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:700;white-space:nowrap}
.badge:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.b-ok{background:var(--usdt-soft);color:var(--usdt)}
.b-wait{background:var(--amber-soft);color:var(--amber)}
.b-bad{background:var(--red-soft);color:var(--red)}
.b-info{background:var(--blue-soft);color:var(--blue)}
.b-mute{background:var(--line-2);color:var(--muted)}

/* 分段选择 */
.seg{display:inline-flex;background:var(--line-2);border-radius:999px;padding:4px}
.seg button{height:32px;padding:0 14px;border-radius:999px;font-weight:700;font-size:13px;color:var(--muted)}
.seg button.on{background:var(--paper);color:var(--text);box-shadow:var(--shadow-1)}

/* 充值 */
.pay-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.quick{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:18px}
.quick button{height:48px;border:1px solid var(--line);border-radius:12px;font-weight:800;background:var(--paper)}
.quick button:hover,.quick button.on{border-color:var(--blue);color:var(--blue);background:var(--blue-soft)}
.amount-input{position:relative}
.amount-input input{height:72px!important;font-size:32px!important;font-weight:800;padding-right:90px!important;letter-spacing:-.02em}
.amount-input em{position:absolute;right:20px;top:50%;transform:translateY(-50%);font-style:normal;font-weight:800;color:var(--muted)}
.paybox{text-align:center}
.paybox .timer{font-size:56px;font-weight:800;letter-spacing:-.03em;line-height:1;margin:8px 0 20px}
.paybox .timer.late{color:var(--red)}
.paybox .qr{width:220px;height:220px;margin:0 auto 20px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:16px}
.paybox .qr svg,.paybox .qr img{width:100%;height:100%}
.copyline{display:flex;align-items:center;gap:8px;background:var(--porcelain);border-radius:12px;padding:6px 6px 6px 16px;text-align:left;margin-bottom:12px}
.copyline code{flex:1;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px;word-break:break-all}
.paybox .big{font-size:40px;font-weight:800;letter-spacing:-.03em}
.notes{display:grid;gap:12px;margin-top:8px}
.notes li{list-style:none;padding-left:20px;position:relative;color:var(--muted)}
.notes li:before{content:"";position:absolute;left:0;top:.7em;width:8px;height:2px;background:var(--blue)}

/* 步进器 */
.stepper{display:flex;gap:0;margin-bottom:40px}
.stepper div{flex:1;padding-top:16px;border-top:3px solid var(--line);color:var(--muted);font-weight:700}
.stepper div b{display:block;font-size:13px;font-weight:700}
.stepper div.on{border-color:var(--blue);color:var(--text)}
.stepper div.done{border-color:var(--usdt);color:var(--text)}

/* 推广 */
.invite{display:grid;grid-template-columns:1.4fr 1fr;gap:24px}
.invite-hero{background:linear-gradient(135deg,var(--blue),#2733A8);color:#fff;border-radius:var(--r-lg);padding:40px}
.invite-hero h2{font-size:30px;font-weight:800;letter-spacing:-.02em;margin-bottom:8px}
.invite-hero p{color:rgba(255,255,255,.75);margin-bottom:28px}
.invite-hero .copyline{background:rgba(255,255,255,.12)}
.invite-hero .copyline code{color:#fff}
.rates{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border-radius:var(--r);overflow:hidden}
.rates div{background:var(--paper);padding:20px}
.rates span{font-size:13px;color:var(--muted);font-weight:600}
.rates b{display:block;font-size:28px;font-weight:800;letter-spacing:-.02em}

/* 弹窗 + 提示 */
.modal{position:fixed;inset:0;background:rgba(14,21,48,.55);display:grid;place-items:center;padding:24px;z-index:200;animation:fade .15s}
.modal-box{background:var(--paper);border-radius:var(--r-lg);padding:36px;width:100%;max-width:480px;max-height:90vh;overflow:auto;animation:pop .2s cubic-bezier(.2,.8,.2,1)}
.modal-box h3{font-size:22px;font-weight:800;margin-bottom:6px}
.modal-box .sub{color:var(--muted);margin-bottom:24px}
.modal-box .acts{display:flex;gap:10px;justify-content:flex-end;margin-top:24px}
@keyframes fade{from{opacity:0}}
@keyframes pop{from{opacity:0;transform:translateY(12px) scale(.98)}}
.toast-host{position:fixed;top:24px;left:50%;transform:translateX(-50%);z-index:300;display:grid;gap:8px}
.toast{background:var(--ink);color:#fff;padding:14px 22px;border-radius:12px;font-weight:600;box-shadow:var(--shadow-2);animation:pop .2s}
.toast.err{background:var(--red)}
.toast.ok{background:var(--usdt)}

.pager{display:flex;justify-content:space-between;align-items:center;margin-top:20px;color:var(--muted);font-size:14px}
.pager div{display:flex;gap:8px}
.skel{color:var(--muted);padding:32px 0;text-align:center}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:1100px){
  .hero .wrap{grid-template-columns:1fr;min-height:0;max-height:none;padding-top:56px}
  .stage{height:380px;max-width:520px}
  .stage .vcard{--w:320px}
  .price-row{grid-template-columns:140px 1fr 120px;padding:28px}
  .price-row .vcard{--w:140px}
  .price-row .go{grid-column:2/4;justify-self:end}
  .uses{grid-template-columns:1fr 1fr}
  .trust{grid-template-columns:1fr;gap:40px}
  .overview,.invite,.pay-grid{grid-template-columns:1fr}
  .kpi-row{grid-template-columns:1fr 1fr}
  .types{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .wrap{padding:0 20px}
  .site-nav nav{display:none}
  .site-nav .wrap{justify-content:space-between}
  .sec{padding:80px 0}
  .hero-facts{gap:28px;flex-wrap:wrap}
  .steps{grid-template-columns:1fr}
  .step{padding:28px 0;border-bottom:1px solid var(--line)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:48px 28px}
  .site-foot .cols{grid-template-columns:1fr}
  .auth{grid-template-columns:1fr}
  .auth-side{display:none}
  .app{grid-template-columns:1fr;background:none}
  .side{position:fixed;left:0;top:0;bottom:0;width:280px;z-index:100;transform:translateX(-100%);transition:transform .25s}
  .app.nav-open .side{transform:none;box-shadow:var(--shadow-2)}
  .menu-btn{display:grid}
  .topbar{padding:0 16px;height:68px}
  .topbar h1{font-size:19px}
  .content{padding:20px 16px 64px}
  .panel{padding:22px}
  .tbl-wrap{margin:0 -22px;padding:0 22px}
  .balance-hero{padding:28px;min-height:0}
  .kpis{grid-template-columns:1fr 1fr;gap:12px}
  .kpi{padding:20px;min-height:110px}
  .kpi b{font-size:26px}
  .kpi-row{gap:12px}
  .wallet .vcard{--w:290px}
  .types{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .quick{grid-template-columns:repeat(2,1fr)}
  .rates b{font-size:22px}
}
@media (max-width:560px){
  .hero h1{font-size:40px}
  .hero p.lead{font-size:17px}
  .stage{height:300px}
  .stage .vcard{--w:250px}
  .site-nav .act .btn-line-light{display:none}
  .price-row{grid-template-columns:1fr;gap:16px}
  .price-row .vcard{--w:200px}
  .price-row .fee{text-align:left}
  .price-row .go{grid-column:auto;justify-self:start}
  .uses{grid-template-columns:1fr}
  .use{min-height:0}
  .bal-pill{display:none}
}
.pay-grid>.panel,.invite>.panel,.overview>.panel{margin-top:0}
.panel-h h2{white-space:nowrap}@media (max-width:860px){.panel-h{flex-wrap:wrap}.panel-h .tools .hint{display:none}}

/* =========================================================
   v8 新增
   ========================================================= */
.logo img{display:block}
.side .tag{margin-top:18px}
.side nav .tag:first-child{margin-top:0}
.side nav a{position:relative}
.side nav a .dot{margin-left:auto;min-width:20px;height:20px;padding:0 6px;border-radius:999px;background:var(--red);color:#fff;font-style:normal;font-size:12px;font-weight:800;display:grid;place-items:center}
.side{overflow-y:auto}
.side .foot .who{display:flex;gap:12px;align-items:center}
.ava{flex:none;width:36px;height:36px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:800}
.side .foot button{display:flex;align-items:center;gap:8px}
.side .foot button svg{width:16px;height:16px}
.notice-bar{display:flex;align-items:center;gap:12px;padding:12px 48px;background:var(--amber-soft);color:#7A4E0E;font-weight:600;font-size:14px}
.notice-bar svg{width:18px;height:18px;flex:none}
.notice-bar span{flex:1}
.notice-bar a{font-weight:800;text-decoration:underline}

/* 官网顶部导航 v8 */
.site-nav .logo img{height:32px}
.site-nav nav a.on{color:#fff}
.top-notice{background:var(--blue);color:#fff;font-size:14px;font-weight:600;text-align:center;padding:10px 20px}
.top-notice a{text-decoration:underline;margin-left:8px}

/* 子页面头图 */
.page-hero{background:var(--ink);color:#fff;padding:88px 0 96px;position:relative;overflow:hidden}
.page-hero:before{content:"";position:absolute;right:-10%;top:-60%;width:70%;height:200%;background:radial-gradient(closest-side,rgba(61,90,254,.32),transparent);pointer-events:none}
.page-hero .wrap{position:relative}
.page-hero .crumb{font-size:14px;color:rgba(255,255,255,.5);margin-bottom:20px}
.page-hero .crumb a:hover{color:#fff}
.page-hero h1{font-size:clamp(36px,4.4vw,60px);font-weight:800;letter-spacing:-.035em;line-height:1.12;max-width:16em}
.page-hero p{font-size:19px;color:rgba(255,255,255,.66);max-width:36em;margin-top:20px}
.page-hero .cta{display:flex;gap:12px;margin-top:36px;flex-wrap:wrap}

/* 正文排版 */
.prose{max-width:760px;font-size:16px;line-height:1.85;color:#2B3247}
.prose h2{font-size:26px;font-weight:800;letter-spacing:-.02em;margin:48px 0 16px;color:var(--text)}
.prose h3{font-size:19px;font-weight:800;margin:32px 0 10px;color:var(--text)}
.prose p,.prose ul,.prose ol{margin-bottom:16px}
.prose ul,.prose ol{padding-left:22px}
.prose li{margin-bottom:6px}
.prose a{color:var(--blue);font-weight:600}
.prose table{width:100%;border-collapse:collapse;margin:16px 0 24px;font-size:15px}
.prose th,.prose td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line)}
.prose th{color:var(--muted);font-size:13px;font-weight:700}
.prose code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.88em;background:var(--line-2);padding:2px 6px;border-radius:6px}
.prose pre{background:var(--ink);color:#DDE3F5;border-radius:14px;padding:20px 22px;overflow-x:auto;font-size:13.5px;line-height:1.7;margin:16px 0 24px}
.prose pre code{background:none;padding:0;color:inherit}
.prose blockquote{border-left:3px solid var(--blue);padding:4px 0 4px 18px;color:var(--muted);margin:16px 0}

/* 文档两栏 */
.doc{display:grid;grid-template-columns:240px 1fr;gap:64px;align-items:start}
.doc-nav{position:sticky;top:100px;display:grid;gap:2px;font-size:14px}
.doc-nav b{font-size:12px;color:var(--muted);margin:16px 0 6px;font-weight:700}
.doc-nav b:first-child{margin-top:0}
.doc-nav a{padding:7px 12px;border-radius:8px;color:#3A4259;font-weight:600}
.doc-nav a:hover{background:var(--line-2)}
.doc .prose{max-width:820px}
.ep{display:inline-flex;gap:8px;align-items:center;font-family:ui-monospace,Menlo,monospace;font-size:14px;background:var(--line-2);padding:6px 12px;border-radius:8px;margin:4px 0 12px}
.ep i{font-style:normal;font-weight:800;font-size:12px;padding:2px 8px;border-radius:6px;background:var(--blue);color:#fff}
.ep i.get{background:var(--usdt)}

/* 栅格块 */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.tile{background:var(--paper);border-radius:var(--r-lg);padding:36px;box-shadow:var(--shadow-1)}
.tile h3{font-size:21px;font-weight:800;letter-spacing:-.01em;margin-bottom:10px}
.tile p{color:var(--muted)}
.tile .ic{width:48px;height:48px;border-radius:14px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;margin-bottom:24px}
.tile .ic svg{width:24px;height:24px}
a.tile{display:block;transition:box-shadow .15s}
a.tile:hover{box-shadow:0 10px 30px -12px rgba(14,21,48,.25)}
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat-band div{padding:40px 28px;border-left:1px solid var(--line)}
.stat-band div:first-child{border-left:0;padding-left:0}
.stat-band b{display:block;font-size:44px;font-weight:800;letter-spacing:-.035em;line-height:1.1}
.stat-band span{color:var(--muted)}
.timeline{display:grid;gap:0;border-left:2px solid var(--line);margin-left:6px}
.timeline div{padding:0 0 32px 28px;position:relative}
.timeline div:before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--blue)}
.timeline b{display:block;font-size:14px;color:var(--blue);margin-bottom:4px}
.timeline h3{font-size:18px;font-weight:800;margin-bottom:4px}
.timeline p{color:var(--muted)}

/* 新闻 */
.news-list{display:grid;gap:0}
.news-item{display:grid;grid-template-columns:120px 1fr auto;gap:32px;align-items:baseline;padding:28px 0;border-top:1px solid var(--line)}
.news-item:last-child{border-bottom:1px solid var(--line)}
.news-item time{color:var(--muted);font-size:14px;font-variant-numeric:tabular-nums}
.news-item h3{font-size:20px;font-weight:800;letter-spacing:-.01em;margin-bottom:6px}
.news-item h3 a:hover{color:var(--blue)}
.news-item p{color:var(--muted)}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:32px}
.chip{height:38px;padding:0 18px;border-radius:999px;border:1px solid var(--line);background:var(--paper);font-weight:700;font-size:14px;display:inline-flex;align-items:center;color:var(--muted)}
.chip.on,.chip:hover{border-color:var(--ink);color:var(--ink)}
.chip.on{background:var(--ink);color:#fff}
.article-meta{display:flex;gap:16px;color:rgba(255,255,255,.55);margin-top:20px;font-size:14px}

/* 首页新闻条 */
.home-news{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.home-news a{display:block;padding:28px;background:var(--paper);border-radius:var(--r);box-shadow:var(--shadow-1)}
.home-news a:hover h3{color:var(--blue)}
.home-news time{font-size:13px;color:var(--muted)}
.home-news h3{font-size:18px;font-weight:800;margin:8px 0 6px;line-height:1.4}
.home-news p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 页脚 v8 */
.site-foot .cols{grid-template-columns:2fr 1fr 1fr 1fr 1fr}
.site-foot .legal{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.site-foot .contact-line{margin-top:16px;display:grid;gap:6px;font-size:14px}

/* 登录注册 v8 */
.auth-side .points{display:grid;gap:14px;margin-top:36px}
.auth-side .points div{display:flex;gap:12px;align-items:flex-start;color:rgba(255,255,255,.78)}
.auth-side .points svg{width:20px;height:20px;flex:none;color:#8FA0FF;margin-top:3px}
.auth-side .trust{display:flex;gap:28px;font-size:13px;color:rgba(255,255,255,.45)}
.pw-wrap{position:relative}
.pw-wrap input{padding-right:56px!important}
.pw-wrap button{position:absolute;right:8px;top:50%;transform:translateY(-50%);height:36px;padding:0 10px;border-radius:8px;font-size:13px;font-weight:700;color:var(--muted)}
.pw-wrap button:hover{background:var(--line-2)}
.strength{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin-top:10px}
.strength i{height:4px;border-radius:2px;background:var(--line)}
.strength[data-s="1"] i:nth-child(-n+1){background:var(--red)}
.strength[data-s="2"] i:nth-child(-n+2){background:var(--amber)}
.strength[data-s="3"] i:nth-child(-n+3){background:var(--usdt)}
.strength[data-s="4"] i{background:var(--usdt)}
.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);margin:4px 0 20px;cursor:pointer}
.check input{width:18px;height:18px;margin-top:2px;accent-color:var(--blue);flex:none}
.check a{color:var(--blue);font-weight:700}
.row-between{display:flex;justify-content:space-between;align-items:center;gap:12px}
.link{color:var(--blue);font-weight:700}
.divider{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:13px;margin:28px 0}
.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--line)}

/* 工单对话 */
.thread{display:grid;gap:16px}
.msg{max-width:80%;padding:16px 20px;border-radius:16px;background:var(--porcelain);white-space:pre-wrap;word-break:break-word}
.msg.me{justify-self:end;background:var(--blue-soft)}
.msg.staff{border:1px solid var(--line);background:var(--paper)}
.msg small{display:block;color:var(--muted);font-size:12px;margin-bottom:6px;font-weight:700}

/* 代码块 / 密钥 */
.keybox{background:var(--ink);color:#DDE3F5;border-radius:14px;padding:20px 22px;display:grid;gap:14px}
.keybox div{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.keybox span{color:rgba(255,255,255,.5);font-size:13px;width:90px;flex:none}
.keybox code{flex:1;font-family:ui-monospace,Menlo,monospace;font-size:14px;word-break:break-all;min-width:0}

/* 404 */
.nf{min-height:100vh;display:grid;place-items:center;background:var(--ink);color:#fff;text-align:center;padding:24px}
.nf b{display:block;font-size:clamp(96px,16vw,180px);font-weight:800;letter-spacing:-.05em;line-height:1;background:linear-gradient(135deg,#8FA0FF,#3D5AFE);-webkit-background-clip:text;background-clip:text;color:transparent}
.nf h1{font-size:28px;font-weight:800;margin:16px 0 8px}
.nf p{color:rgba(255,255,255,.6);margin-bottom:32px}

@media (max-width:1100px){
  .doc{grid-template-columns:1fr}
  .doc-nav{position:static;grid-template-columns:repeat(2,1fr)}
  .grid3,.home-news{grid-template-columns:1fr 1fr}
  .stat-band{grid-template-columns:1fr 1fr}
  .stat-band div:nth-child(3){border-left:0;padding-left:0}
  .site-foot .cols{grid-template-columns:1fr 1fr 1fr}
  .site-foot .cols>div:first-child{grid-column:1/-1}
}
@media (max-width:860px){
  .notice-bar{padding:12px 16px}
  .page-hero{padding:56px 0 64px}
  .grid3,.grid2,.home-news{grid-template-columns:1fr}
  .tile{padding:28px}
  .news-item{grid-template-columns:1fr;gap:6px}
  .stat-band b{font-size:32px}
  .stat-band div{padding:24px 16px}
  .msg{max-width:92%}
  .hide-m{display:none!important}
  .site-foot .cols{grid-template-columns:1fr 1fr}
}
.quick-acts{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.quick-acts a{background:var(--paper);border-radius:var(--r);box-shadow:var(--shadow-1);padding:20px 12px;display:flex;flex-direction:column;align-items:center;gap:10px;font-weight:700;font-size:14px;transition:box-shadow .15s,color .15s}
.quick-acts a:hover{color:var(--blue);box-shadow:0 10px 24px -12px rgba(14,21,48,.3)}
.quick-acts svg{width:26px;height:26px;color:var(--blue)}
.news-mini{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-top:1px solid var(--line-2)}
.news-mini:first-child{border-top:0;padding-top:0}
.news-mini b{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-mini:hover b{color:var(--blue)}
.news-mini time{color:var(--muted);font-size:13px;flex:none}
.wallet a.item{display:block}
@media (max-width:1100px){.quick-acts{grid-template-columns:repeat(3,1fr)}}
@media (max-width:860px){.quick-acts{gap:10px}.quick-acts a{padding:16px 8px}}
.settings-nav{flex-wrap:wrap;border-radius:14px}
.save-bar{position:sticky;bottom:0;margin-top:24px;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-radius:var(--r);box-shadow:0 -6px 24px -12px rgba(14,21,48,.25);padding:14px 20px;display:flex;justify-content:space-between;align-items:center;gap:12px;z-index:5}
.editor-bar{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.editor-bar button{height:32px;padding:0 12px;border:1px solid var(--line);border-radius:8px;font-size:13px;font-weight:700;background:var(--paper)}
.editor{min-height:280px;border:1px solid var(--line);border-radius:12px;padding:16px 18px;background:var(--paper);max-width:none}
.editor:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px var(--blue-soft)}
.side nav a .dot[hidden]{display:none}
.doc>*,.grid2>*,.grid3>*,.pay-grid>*,.overview>*,.invite>*{min-width:0}
.dash-split{grid-template-columns:1.4fr 1fr}
@media (max-width:1100px){.dash-split{grid-template-columns:1fr}}
.prose pre{max-width:100%}
.prose table{display:block;overflow-x:auto}.ep{max-width:100%;overflow-x:auto;white-space:nowrap}.prose{overflow-wrap:anywhere}
.field>span.row-between{display:flex}
@media (max-width:1100px){
  .doc-nav{display:flex;flex-wrap:wrap;gap:8px}
  .doc-nav b{display:none}
  .doc-nav a{border:1px solid var(--line);background:var(--paper);border-radius:999px;padding:6px 14px}
}
@media (max-width:860px){
  .tbl th,.tbl td{white-space:nowrap}
  .tbl td .muted,.tbl td div{white-space:normal;min-width:160px}
}

/* =========================================================
   v8.1 登录 / 注册 / 后台登录 / 安装向导
   ========================================================= */
.auth{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);background:var(--paper)}
.auth-side{padding:56px 72px;background:
  radial-gradient(70% 60% at 85% 100%,rgba(61,90,254,.45),transparent 70%),
  radial-gradient(50% 40% at 0% 0%,rgba(30,158,116,.18),transparent 70%),var(--ink)}
.auth-side:before{display:none}
.auth-side .logo img{height:38px!important}
.auth-side h2{font-size:clamp(40px,3.8vw,58px);line-height:1.1;letter-spacing:-.04em;margin-bottom:20px}
.auth-side p{font-size:18px;max-width:26em}
.auth-fan{position:relative;height:300px;margin:48px 0 8px;max-width:560px}
.auth-fan .vcard{position:absolute;--w:min(360px,30vw);transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.auth-fan .f1{left:0;top:40px;transform:rotate(-12deg);opacity:.7}
.auth-fan .f2{left:18%;top:10px;transform:rotate(-3deg)}
.auth-fan .f3{left:36%;top:70px;transform:rotate(8deg)}
.auth-side .points{grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px;padding-top:28px;border-top:1px solid rgba(255,255,255,.1)}
.auth-side .points div{flex-direction:column;gap:6px;font-size:14px}
.auth-side .points b{color:#fff;font-size:22px;font-weight:800;letter-spacing:-.02em}
.auth-main{position:relative;padding:56px}
.auth-main .back{position:absolute;top:32px;right:40px;font-size:14px;font-weight:700;color:var(--muted)}
.auth-main .back:hover{color:var(--blue)}
.auth-box{max-width:440px}
.auth-box h1{font-size:40px;letter-spacing:-.035em}
.auth-box .sub{font-size:16px;margin-bottom:40px}
.auth-box .field input{height:56px;font-size:16px;border-radius:14px;background:#F8F9FC}
.auth-box .field input:focus{background:#fff}
.auth-box .btn-lg{height:58px;border-radius:14px;font-size:17px}
.auth-box .logo.dark{display:none}
.auth-tabs{display:flex;gap:4px;background:var(--line-2);border-radius:14px;padding:4px;margin-bottom:36px}
.auth-tabs a{flex:1;text-align:center;height:44px;line-height:44px;border-radius:11px;font-weight:700;color:var(--muted)}
.auth-tabs a.on{background:#fff;color:var(--text);box-shadow:var(--shadow-1)}
.secure-note{display:flex;gap:10px;align-items:center;margin-top:28px;padding:14px 16px;border-radius:12px;background:var(--porcelain);font-size:13px;color:var(--muted)}
.secure-note svg{width:18px;height:18px;color:var(--usdt);flex:none}

/* 后台登录：深色整屏 */
.adm-auth .auth-side{background:
  radial-gradient(60% 60% at 100% 100%,rgba(201,166,90,.22),transparent 70%),
  radial-gradient(60% 50% at 0% 0%,rgba(61,90,254,.35),transparent 70%),#0A1028}
.adm-auth .badge-line{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;background:rgba(255,255,255,.08);color:rgba(255,255,255,.75);font-size:13px;font-weight:700;margin-bottom:28px}
.adm-auth .badge-line i{width:8px;height:8px;border-radius:50%;background:#2BD99A;box-shadow:0 0 0 4px rgba(43,217,154,.18)}
.adm-feat{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:44px;max-width:560px}
.adm-feat div{padding:20px;border-radius:16px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08)}
.adm-feat b{display:block;color:#fff;font-size:16px;margin-bottom:4px}
.adm-feat span{color:rgba(255,255,255,.55);font-size:13px}

/* 安装向导 */
.iw-shell{display:grid;grid-template-columns:380px 1fr;min-height:100vh;background:var(--porcelain)}
.iw-side{background:radial-gradient(80% 50% at 0% 100%,rgba(61,90,254,.4),transparent 70%),var(--ink);color:#fff;padding:48px 40px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.iw-side h2{font-size:30px;font-weight:800;letter-spacing:-.03em;margin:44px 0 8px}
.iw-side>p{color:rgba(255,255,255,.55)}
.iw-steps{margin-top:44px;display:grid;gap:0;counter-reset:s}
.iw-steps div{position:relative;padding:0 0 30px 52px;color:rgba(255,255,255,.45)}
.iw-steps div:before{counter-increment:s;content:counter(s);position:absolute;left:0;top:-4px;width:34px;height:34px;border-radius:50%;border:1.5px solid rgba(255,255,255,.2);display:grid;place-items:center;font-weight:800;font-size:14px}
.iw-steps div:after{content:"";position:absolute;left:17px;top:34px;bottom:2px;width:1.5px;background:rgba(255,255,255,.12)}
.iw-steps div:last-child:after{display:none}
.iw-steps b{display:block;color:inherit;font-size:16px}
.iw-steps small{font-size:13px}
.iw-steps .on{color:#fff}
.iw-steps .on:before{background:var(--blue);border-color:var(--blue)}
.iw-steps .done{color:rgba(255,255,255,.75)}
.iw-steps .done:before{content:"✓";background:var(--usdt);border-color:var(--usdt)}
.iw-side .ver{margin-top:auto;font-size:13px;color:rgba(255,255,255,.4)}
.iw-main{padding:64px 72px;max-width:900px;width:100%}
.iw-main h1{font-size:40px;font-weight:800;letter-spacing:-.035em;margin-bottom:8px}
.iw-main .lead{color:var(--muted);font-size:17px;margin-bottom:36px}
.iw-step{display:none}
.iw-step.on{display:block;animation:pop .25s}
.env{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.env div{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-radius:14px;background:var(--paper);box-shadow:var(--shadow-1)}
.env b{font-weight:700}
.env span{font-weight:800;font-size:14px}
.env .ok span{color:var(--usdt)}
.env .bad{box-shadow:inset 0 0 0 1.5px var(--red)}
.env .bad span{color:var(--red)}
.iw-nav{display:flex;justify-content:space-between;gap:12px;margin-top:32px}
.iw-alert{background:var(--red-soft);color:var(--red);padding:16px 20px;border-radius:14px;font-weight:600;margin-bottom:24px}
.iw-done{text-align:left}
.iw-done .big-ok{width:72px;height:72px;border-radius:22px;background:var(--usdt);color:#fff;display:grid;place-items:center;font-size:36px;font-weight:800;margin-bottom:28px}
.next-steps{display:grid;gap:14px;margin:32px 0}
.next-steps div{display:grid;grid-template-columns:44px 1fr;gap:16px;padding:22px 24px;border-radius:16px;background:var(--paper);box-shadow:var(--shadow-1)}
.next-steps i{font-style:normal;width:44px;height:44px;border-radius:12px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;font-weight:800}
.next-steps b{display:block;font-size:16px;margin-bottom:4px}
.next-steps code{font-family:ui-monospace,Menlo,monospace;font-size:13px;background:var(--line-2);padding:2px 8px;border-radius:6px;word-break:break-all}

@media (max-width:1100px){
  .auth-side{padding:48px}
  .auth-fan{height:240px}
  .auth-side .points{grid-template-columns:1fr}
  .iw-shell{grid-template-columns:1fr}
  .iw-side{position:static;height:auto;padding:32px 24px}
  .iw-side h2{margin-top:24px}
  .iw-steps{grid-template-columns:repeat(4,1fr);margin-top:24px}
  .iw-steps div{padding:44px 0 0;font-size:13px}
  .iw-steps div:after{display:none}
  .iw-steps small{display:none}
  .iw-main{padding:40px 24px}
}
@media (max-width:860px){
  .auth-main{padding:72px 20px 40px}
  .auth-main .back{top:24px;right:20px}
  .auth-box .logo.dark{display:flex}
  .auth-box h1{font-size:32px}
  .env{grid-template-columns:1fr}
}
@media (max-width:860px){.auth{grid-template-columns:1fr}.auth-side{display:none}.auth-box{max-width:none}}