:root{--bg:#f4f5f7;--card:#fff;--fg:#1b1d21;--muted:#6b7280;--line:#e5e7eb;--accent:#2563eb;--accent-fg:#fff;--warn:#d97706;--bad:#dc2626;--ok:#16a34a;--track:#eef0f3;--soft:#f8f9fb}
@media (prefers-color-scheme:dark){:root{--bg:#0f1115;--card:#181b21;--fg:#e8eaed;--muted:#9aa0a6;--line:#2a2e36;--accent:#60a5fa;--accent-fg:#0b1220;--warn:#fbbf24;--bad:#f87171;--ok:#4ade80;--track:#252a32;--soft:#1e2229}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
main{max-width:480px;margin:0 auto;padding:40px 16px 64px}
main.wide{max-width:1040px}
h1{font-size:22px;margin:0 0 4px}
h2{font-size:16px;margin:0 0 12px}
.sub,.muted{color:var(--muted);font-size:14px}
.sub{margin:0 0 24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;margin-top:16px}
.top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.tabs{display:flex;gap:4px;background:var(--track);border-radius:10px;padding:4px;margin-bottom:16px}
.tabs button{flex:1;background:transparent;color:var(--muted);padding:8px}
.tabs button.on{background:var(--card);color:var(--fg)}
label{display:block;font-size:13px;color:var(--muted);margin:12px 0 4px}
input,select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--fg);font:inherit}
input[type=checkbox]{width:auto;margin:0 6px 0 0;vertical-align:middle}
input:focus,select:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:transparent}
button{padding:10px 16px;border:0;border-radius:10px;background:var(--accent);color:var(--accent-fg);font:inherit;font-weight:600;cursor:pointer}
button.ghost{background:transparent;color:var(--fg);border:1px solid var(--line);font-weight:500}
button.link{background:none;color:var(--accent);padding:0;font-weight:500}
button.small{padding:4px 10px;font-size:13px}
button:disabled{opacity:.6;cursor:default}
.full{width:100%;margin-top:16px}
.row{display:flex;gap:8px;align-items:center}
.row>input{flex:1;min-width:0}
.err{color:var(--bad);font-size:14px;margin:10px 0 0}
.ok{color:var(--ok);font-size:14px;margin:10px 0 0}
.hidden{display:none!important}
.badge{font-size:12px;padding:2px 8px;border-radius:999px;border:1px solid currentColor;white-space:nowrap}
.b-ok{color:var(--ok)}.b-bad{color:var(--bad)}.b-warn{color:var(--warn)}.b-muted{color:var(--muted)}
.big{font-size:28px;font-weight:700;letter-spacing:-.5px;font-variant-numeric:tabular-nums}
.bar{height:8px;background:var(--track);border-radius:999px;overflow:hidden;margin:10px 0 6px}
.bar i{display:block;height:100%;background:var(--accent);border-radius:999px}
.bar i.warn{background:var(--warn)}.bar i.bad{background:var(--bad)}
.meta{display:flex;justify-content:space-between;gap:8px;color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums;flex-wrap:wrap}
.sec{padding-top:16px;margin-top:16px;border-top:1px solid var(--line)}
.copy{display:flex;gap:8px;margin-top:6px}
.copy input{font:12px ui-monospace,SFMono-Regular,Consolas,monospace;background:var(--soft)}
.list{margin:0;padding:0;list-style:none;font-size:13px}
.list li{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px solid var(--line)}
.list li:last-child{border-bottom:0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}
.stat{background:var(--soft);border-radius:10px;padding:12px}
.stat b{display:block;font-size:22px}
.table{width:100%;overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:8px;border-bottom:1px solid var(--line);white-space:nowrap}
th{color:var(--muted);font-weight:500}
td.mono,.mono{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
textarea{width:100%;min-height:120px;padding:10px;border:1px solid var(--line);border-radius:10px;background:var(--soft);color:var(--fg);font:13px ui-monospace,SFMono-Regular,Consolas,monospace}
.checks label{display:flex;align-items:center;color:var(--fg);margin:6px 0}
.top select{width:auto;padding:4px 8px;font-size:13px}
.top a{font-size:14px}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:0 12px;align-items:end}
button{white-space:nowrap;touch-action:manipulation}
.nowrap{white-space:nowrap}
.small-text{font-size:13px}

/* 用户页 */
body.user main{padding:20px max(16px,env(safe-area-inset-right)) calc(48px + env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left))}
.appbar{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top)}
.appbar-inner{max-width:480px;margin:0 auto;height:52px;padding:0 max(16px,env(safe-area-inset-left));display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:16px;white-space:nowrap}
.brand-dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 20%,transparent)}
.account{position:relative;min-width:0}
.account>button{max-width:58vw;display:flex;align-items:center;gap:6px}
.account>button span:first-child{overflow:hidden;text-overflow:ellipsis}
.caret{font-size:10px;color:var(--muted)}
.menu{position:absolute;right:0;top:calc(100% + 6px);background:var(--card);border:1px solid var(--line);border-radius:12px;padding:6px;min-width:150px;box-shadow:0 8px 24px rgba(0,0,0,.12)}
.menu button{display:block;width:100%;text-align:left;background:none;color:var(--fg);font-weight:500;padding:10px 12px;border-radius:8px}
.menu button:hover{background:var(--soft)}
.auth-head{margin:12px 0 4px}
.card-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}
.card-head h2{margin:0}
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.tile{background:var(--soft);border-radius:12px;padding:12px 14px;min-width:0}
.tile .label{color:var(--muted);font-size:13px}
.tile .big{font-size:24px;line-height:1.25;margin:2px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.usage{margin-top:14px}
.usage .bar{margin:0 0 6px}
.url{font:12px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--muted);word-break:break-all;margin-top:8px;max-height:3em;overflow:hidden}
.links{margin-top:14px;border-top:1px solid var(--line);padding-top:10px}
.link-row{display:flex;gap:10px;align-items:center;padding:8px 0}
.link-row .url{flex:1;min-width:0;margin:0;white-space:nowrap;text-overflow:ellipsis;max-height:none}
details summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:44px;font-weight:600}
details summary::-webkit-details-marker{display:none}
details summary::after{content:'▾';margin-left:auto;color:var(--muted);font-size:14px;line-height:1;transition:transform .15s}
details[open] summary::after{transform:rotate(180deg)}
.links summary{font-weight:500;font-size:14px;color:var(--muted)}
.fold-card{padding:4px 20px}
.fold-card details+details{border-top:1px solid var(--line)}
.fold-card details[open]{padding-bottom:14px}
.list li span:first-child{min-width:0}
.empty{text-align:center;padding:28px 20px}
.empty-icon{font-size:30px;color:var(--accent);line-height:1}
.empty h2{margin:10px 0 6px}
.empty p{margin:0}
#redeem-code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.5px}
#redeem-card .muted{margin:-6px 0 12px}

@media (max-width:560px){
  main{padding-top:24px}
  .big{font-size:24px}
  .card{padding:16px;border-radius:14px;margin-top:12px}
  .fold-card{padding:2px 16px}
  /* iOS 上小于 16px 的输入框聚焦时会自动放大页面 */
  input,select,textarea{font-size:16px}
  button{min-height:44px}
  button.small{min-height:36px}
  .tile{padding:10px 12px}
  .tile .big{font-size:20px}
  .list li{flex-direction:column;gap:2px}
}
@media (max-width:340px){.tiles{grid-template-columns:1fr}}