:root{--bg:#f4f7fb;--panel:#fff;--ink:#172033;--muted:#718096;--line:#e3e9f2;--blue:#2768d9;--nav:#111a2b}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.5 Inter,"Microsoft YaHei",sans-serif}.hidden{display:none!important}.login{min-height:100vh;display:grid;place-items:center}.login-box{width:min(390px,calc(100% - 32px));background:#fff;border:1px solid var(--line);border-radius:12px;padding:34px;box-shadow:0 18px 50px #18283c14}.mark{width:36px;height:36px;border-radius:9px;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:800}.login h1{margin:16px 0 4px;font-size:24px}.login p,.login small{color:var(--muted)}form{display:grid;gap:12px;margin-top:24px}input,button{font:inherit;border-radius:7px;padding:11px 13px}input{border:1px solid var(--line)}button{border:0;background:var(--blue);color:#fff;font-weight:700;cursor:pointer}#loginError{color:#c0392b;min-height:20px}.app{min-height:100vh;display:flex}.app aside{width:248px;background:var(--nav);color:#dce6f6;padding:22px 16px;display:flex;flex-direction:column;gap:26px}.brand{display:flex;align-items:center;gap:10px;font-weight:800}.brand small{display:block;color:#8797b0;font-size:11px;font-weight:400}.app aside .mark{width:32px;height:32px}.nav{display:block;width:100%;text-align:left;background:transparent;color:#aebbd0;margin:4px 0;font-weight:500}.nav.active,.nav:hover{background:#253a5f;color:#fff}.logout{margin-top:auto;background:#26334a;color:#ced9e9}.app main{flex:1;max-width:1400px;padding:34px 42px;margin:auto}.app header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:26px}.eyebrow{color:var(--blue);font-size:12px;font-weight:700;margin:0}.app h1{margin:4px 0;font-size:29px}.tenant{color:var(--muted);padding-top:10px}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.metric,.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:20px;box-shadow:0 10px 28px #18283c08}.metric span{display:block;color:var(--muted);font-size:12px}.metric b{font-size:27px;display:block;margin-top:8px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}.panel h2{font-size:17px;margin:0 0 16px}.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.panel-head p{color:var(--muted);margin:3px 0}.panel-head button{padding:8px 12px}.row{display:grid;grid-template-columns:1fr auto auto;gap:16px;align-items:center;padding:13px 0;border-bottom:1px solid var(--line)}.row:last-child{border-bottom:0}.row small{display:block;color:var(--muted)}.row time{color:var(--muted);font-size:12px}.status{font-size:12px;padding:4px 8px;border-radius:999px;background:#f0f2f5}.status.online{background:#dff6e9;color:#167044}.status.offline{background:#f0f2f5;color:#768194}.empty{padding:30px;text-align:center;color:var(--muted)}dl{display:grid;grid-template-columns:1fr 1fr;gap:12px 18px;margin:0}dt{color:var(--muted)}dd{margin:0;font-weight:600;text-align:right}.dot{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:6px;background:#21a66f}.plan{border:1px solid #d8e5fb;background:#f4f8ff;padding:18px;border-radius:8px;display:flex;justify-content:space-between;margin-bottom:18px}.plan b{font-size:20px}.plan span{color:#167044}@media(max-width:800px){.app aside{width:190px}.app main{padding:22px}.metrics{grid-template-columns:1fr 1fr}.grid{grid-template-columns:1fr}}@media(max-width:580px){.app{display:block}.app aside{width:auto}.app aside nav{display:grid;grid-template-columns:1fr 1fr}.app main{padding:16px}.app header{display:block}.tenant{padding-top:4px}.metrics{gap:8px}.metric{padding:14px}.metric b{font-size:21px}.row{grid-template-columns:1fr auto}.row time{grid-column:1/-1}}