:root{--bg:#0f1115;--card:#1a1e27;--line:#2a2f3a;--fg:#e7eaf0;--muted:#9aa4b2;--accent:#4f8cff;--danger:#ff5c6c;--ok:#39d98a}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"PingFang TC","Noto Sans TC",system-ui,sans-serif;background:var(--bg);color:var(--fg);-webkit-text-size-adjust:100%}
.wrap{max-width:720px;margin:0 auto;padding:16px 14px 84px}
header.top{position:sticky;top:0;background:rgba(15,17,21,.92);backdrop-filter:blur(8px);padding:14px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;z-index:10}
header.top h1{font-size:17px;margin:0;font-weight:600}
header.top a{color:var(--muted);text-decoration:none;font-size:13px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;margin:12px 0}
.row{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--line)}
.row:last-child{border-bottom:0}
.kpi{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.kpi .card{margin:0;text-align:center}
.kpi .big{font-size:26px;font-weight:700;margin-top:6px}
.muted{color:var(--muted);font-size:13px}
.debt{color:var(--danger);font-weight:600}
.ok{color:var(--ok);font-weight:600}
.tag{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:2px 8px}
a.item{display:block;color:inherit;text-decoration:none}
nav.tabbar{position:fixed;left:0;right:0;bottom:0;display:flex;background:rgba(20,24,31,.96);backdrop-filter:blur(8px);border-top:1px solid var(--line)}
nav.tabbar a{flex:1;text-align:center;padding:10px 4px;color:var(--muted);text-decoration:none;font-size:11px}
nav.tabbar a.active{color:var(--accent)}
nav.tabbar .ic{display:block;font-size:18px;margin-bottom:2px}
form.auth{max-width:360px;margin:40px auto}
input{width:100%;padding:12px;border-radius:10px;border:1px solid var(--line);background:#0c0e13;color:var(--fg);font-size:16px;margin:8px 0}
button{width:100%;padding:12px;border:0;border-radius:10px;background:var(--accent);color:#fff;font-size:16px;font-weight:600}
.err{color:var(--danger);font-size:14px}
.msg{color:var(--ok);font-size:14px}
@media(min-width:720px){.kpi{grid-template-columns:repeat(4,1fr)}}