:root{
  --bg:#15130f;--bg-2:#1f1b15;--panel:rgba(31,27,21,.82);
  --ink:#f3ede2;--muted:#a69d8c;--line:rgba(243,237,226,.14);
  --gold:#d8b36a;--gold-2:#f1dca7;--gold-dim:rgba(216,179,106,.18);
  --ok:#8cc7a1;--warn:#e9b85a;--bad:#e2705c;
  --serif:"Songti SC","STSong","Noto Serif CJK SC","Source Han Serif SC","SimSun",serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",sans-serif;
  --mono:"SF Mono","Menlo","Consolas","Courier New",monospace;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.bg{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(60% 40% at 20% 0%,rgba(216,179,106,.22),transparent 60%),
    radial-gradient(50% 35% at 90% 100%,rgba(140,103,45,.18),transparent 60%),
    linear-gradient(180deg,#1a1711 0%,#15130f 60%,#100e0b 100%);}
.bg::after{content:"";position:absolute;inset:0;opacity:.08;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");}
.wrap{position:relative;z-index:1;max-width:440px;margin:0 auto;padding:max(28px,env(safe-area-inset-top)) 20px 40px;min-height:100dvh;display:flex;flex-direction:column;gap:22px}

.hero{padding-top:18px}
.eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.28em;color:var(--gold);text-transform:uppercase}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--gold);box-shadow:0 0 12px var(--gold)}
h1{font-family:var(--serif);font-weight:600;font-size:34px;line-height:1.22;margin:14px 0 10px;letter-spacing:.01em}
.lede{color:var(--muted);margin:0;font-size:14px}

.panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:22px 20px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 30px 60px -30px rgba(0,0,0,.8)}
.stage{display:flex;flex-direction:column;gap:12px}
.stage[hidden]{display:none}
label{font-size:12px;color:var(--muted);letter-spacing:.1em}
.field{display:flex;align-items:center;border:1px solid var(--line);border-radius:12px;background:rgba(0,0,0,.25);transition:border-color .2s,box-shadow .2s}
.field:focus-within,input:focus{border-color:var(--gold);box-shadow:0 0 0 3px var(--gold-dim);outline:none}
.prefix{padding:0 12px;color:var(--muted);font-family:var(--mono);font-size:15px;border-right:1px solid var(--line)}
input{width:100%;background:transparent;border:0;color:var(--ink);font:inherit;font-size:18px;padding:14px 14px;font-family:var(--mono);letter-spacing:.06em;border-radius:12px}
input::placeholder{color:#6f6758;font-family:var(--sans);letter-spacing:0;font-size:15px}
.stage>input{border:1px solid var(--line);background:rgba(0,0,0,.25)}
input.code{text-align:center;font-size:28px;letter-spacing:.5em;padding-left:calc(14px + .5em)}
#wechat,#wechat-m{font-family:var(--sans);letter-spacing:0}
#wechat-block{display:flex;flex-direction:column;gap:12px}
#wechat-block[hidden]{display:none}
#wechat-block>input{border:1px solid var(--line);background:rgba(0,0,0,.25)}

.btn{appearance:none;border:0;border-radius:12px;padding:14px 16px;font:inherit;font-size:16px;font-weight:600;cursor:pointer;transition:transform .12s,opacity .2s,background .2s}
.btn:active{transform:scale(.985)}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn.primary{background:linear-gradient(135deg,var(--gold-2),var(--gold) 60%,#b8914a);color:#1a1510;box-shadow:0 10px 24px -10px rgba(216,179,106,.6)}
.btn.ghost{background:transparent;color:var(--muted);border:1px solid var(--line);font-weight:500}
.btn.ghost:hover{color:var(--ink);border-color:rgba(243,237,226,.3)}

.sent{margin:0 0 4px;font-size:14px;color:var(--muted)}
.sent b{color:var(--ink);font-family:var(--mono);font-weight:500;letter-spacing:.04em}
.sent a{margin-left:10px;color:var(--gold);text-decoration:none;font-size:13px}
.hint{margin:0;font-size:13px;color:var(--muted)}
.hint.center{text-align:center}
.err{min-height:1.2em;margin:0;font-size:13px;color:var(--bad)}
.err:empty{display:none}
.debug{margin:-6px 0 14px;padding:10px 12px;border-radius:10px;background:rgba(233,184,90,.12);border:1px dashed rgba(233,184,90,.5);color:var(--warn);font-size:13px}
.debug b{font-family:var(--mono);font-size:16px;letter-spacing:.2em}

.card{position:relative;overflow:hidden;border-radius:18px;padding:22px 22px 20px;color:#1a1510;
  background:linear-gradient(145deg,#f4e3b7 0%,#e2c37c 45%,#c89d55 100%);
  box-shadow:0 30px 60px -24px rgba(216,179,106,.55),inset 0 1px 0 rgba(255,255,255,.5);
  transform-origin:50% 100%;animation:cardIn .7s cubic-bezier(.2,.8,.2,1) both}
.card::before{content:"";position:absolute;inset:0;opacity:.35;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='1.1' numOctaves='2'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>")}
.card::after{content:"";position:absolute;right:-60px;top:-60px;width:200px;height:200px;border-radius:50%;border:1px solid rgba(26,21,16,.18)}
.card>*{position:relative}
.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.pill{font-size:12px;font-weight:700;letter-spacing:.14em;padding:5px 10px;border-radius:999px;background:#1a1510;color:var(--gold-2)}
.pill.soon{background:#8a4b12;color:#ffe3b3}
.pill.expired{background:#7a2a1f;color:#ffd6cf}
.pill.free{background:#1f4d33;color:#cdf1d9}
.pill.unknown{background:#4a443a;color:#e9e2d4}
.chip{font-size:11px;letter-spacing:.22em;color:rgba(26,21,16,.6)}
.card h2{font-family:var(--serif);font-size:26px;margin:0;line-height:1.25;word-break:break-all}
.c-wid{font-family:var(--mono);font-size:12px;color:rgba(26,21,16,.6);margin-top:4px;word-break:break-all}
.c-expire{margin:22px 0 18px;padding:16px 0 0;border-top:1px dashed rgba(26,21,16,.3)}
.c-expire .label{font-size:12px;letter-spacing:.2em;color:rgba(26,21,16,.65)}
.c-expire .date{font-family:var(--mono);font-size:36px;font-weight:700;letter-spacing:.02em;line-height:1.1;margin-top:4px;font-variant-numeric:tabular-nums}
.c-expire .days{font-size:13px;color:rgba(26,21,16,.75);margin-top:6px}
.meta{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px;margin:0}
.meta div{min-width:0}
.meta dt{font-size:11px;letter-spacing:.14em;color:rgba(26,21,16,.55)}
.meta dd{margin:2px 0 0;font-size:14px;font-weight:600;overflow-wrap:anywhere}
.meta dd.mono{font-family:var(--mono);font-weight:500}

.foot{margin-top:auto;text-align:center;font-size:12px;color:#6f6758;letter-spacing:.14em}

.reveal{opacity:0;transform:translateY(14px);animation:rise .7s cubic-bezier(.2,.8,.2,1) forwards;animation-delay:calc(var(--i,0)*.12s)}
@keyframes rise{to{opacity:1;transform:none}}
@keyframes cardIn{from{opacity:0;transform:perspective(900px) rotateX(14deg) translateY(24px)}to{opacity:1;transform:none}}
.shake{animation:shake .4s}
@keyframes shake{20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}
@media (prefers-reduced-motion:reduce){.reveal,.card,.shake{animation:none;opacity:1;transform:none}}