:root{--bg:#0f1221;--panel:#1a1f36;--line:#2a3050;--fg:#e8ecf5;--muted:#8a93b2;--accent:#4c7dff;--ok:#2ecc71;--bad:#ff5c6c;}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:"Microsoft JhengHei","Segoe UI",system-ui,sans-serif;background:var(--bg);color:var(--fg);min-height:100vh;}
.hidden{display:none!important;}
.center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px;}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px;}
.login-card{width:100%;max-width:360px;display:flex;flex-direction:column;gap:10px;}
.login-card h1{font-size:20px;}
.muted{color:var(--muted);font-size:13px;}
input,select{background:#0e1226;border:1px solid var(--line);color:var(--fg);border-radius:8px;padding:10px 12px;font-size:15px;width:100%;}
button{cursor:pointer;border:none;border-radius:8px;padding:10px 14px;font-size:15px;font-weight:600;}
button.primary{background:var(--accent);color:#fff;}
button.ghost{background:transparent;color:var(--muted);border:1px solid var(--line);}
button.small{padding:6px 10px;font-size:13px;}
.msg{font-size:13px;min-height:18px;}
.msg.err{color:var(--bad);} .msg.ok{color:var(--ok);}
.demo{font-size:12px;color:var(--muted);} .demo p{margin-top:6px;line-height:1.6;}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;}
.brand{font-weight:700;}
.user{display:flex;align-items:center;gap:10px;font-size:14px;}
.tabs{display:flex;gap:4px;padding:8px 12px;overflow-x:auto;border-bottom:1px solid var(--line);}
.tab{background:transparent;color:var(--muted);border:1px solid transparent;}
.tab.active{color:var(--fg);border-color:var(--line);background:var(--panel);}
main{padding:16px;max-width:980px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px;}
.panel h2{font-size:16px;margin-bottom:10px;color:#cdd6f4;}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center;}
.row>*{flex:1;min-width:120px;}
table{width:100%;border-collapse:collapse;font-size:14px;}
th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);}
th{color:var(--muted);font-weight:600;}
.tag{display:inline-block;padding:2px 8px;border-radius:20px;font-size:12px;}
.tag.ok{background:rgba(46,204,113,.15);color:var(--ok);}
.tag.bad{background:rgba(255,92,108,.15);color:var(--bad);}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:8px;}
@media(max-width:560px){.grid2{grid-template-columns:1fr;} main{padding:12px;}}
.hint{font-size:12px;color:var(--muted);}