:root{--bg: #f4f7fb;--surface: #fff;--sidebar: #10233d;--sidebar-hover: #1c385d;--text: #172033;--muted: #748096;--line: #e5eaf1;--primary: #1677ff;--primary-dark: #075dcc;--green: #18a874;--danger: #dc3545}*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Segoe UI,PingFang SC,sans-serif;background:var(--bg);color:var(--text)}button,input,select{font:inherit}button{cursor:pointer}.hidden{display:none!important}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 20% 10%,#dcebff,transparent 34%),#f4f7fb}.login-card{width:min(430px,100%);padding:42px;border-radius:22px;background:var(--surface);box-shadow:0 22px 70px #26436924}.logo,.brand-mark{display:grid;place-items:center;background:var(--primary);color:#fff;font-weight:800}.logo{width:58px;height:58px;border-radius:16px;margin-bottom:24px;font-size:19px}.login-card h1{margin:0 0 8px;font-size:29px}.login-card>p{margin:0 0 28px;color:var(--muted)}label{display:flex;flex-direction:column;gap:8px;margin-bottom:17px;color:#526078;font-size:14px}input,select{width:100%;padding:12px 14px;border:1px solid #d7deea;border-radius:10px;background:#fff;color:var(--text);outline:none}input:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #1677ff1f}.primary,.secondary,.text-btn,.nav-item,.close,.action-btn{border:0;border-radius:9px}.primary{width:100%;padding:13px 18px;background:var(--primary);color:#fff;font-weight:650}.primary:hover{background:var(--primary-dark)}.primary.compact{width:auto;padding:10px 17px}.secondary{padding:10px 16px;background:#edf2f8;color:#3d4c63}.text-btn{padding:9px;background:transparent;color:#b9c5d4}.status{min-height:20px;margin:10px 0;color:var(--muted);font-size:14px}.copy{margin:18px 0 0;color:var(--muted);font-size:12px;line-height:1.5;text-align:center}.side-bottom .copy.muted{margin-top:14px;color:#7f8fa3}.app{min-height:100vh;display:grid;grid-template-columns:230px 1fr}.sidebar{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;padding:24px 16px;background:var(--sidebar);color:#fff}.brand{display:flex;align-items:center;gap:12px;padding:0 8px 28px}.brand-mark{width:42px;height:42px;border-radius:12px}.brand strong,.brand span{display:block}.brand strong{font-size:17px}.brand span{color:#9bacc1;font-size:12px;margin-top:3px}nav{display:grid;gap:8px}.nav-item{display:flex;align-items:center;gap:12px;width:100%;padding:13px 15px;background:transparent;color:#b9c5d4;text-align:left;font-size:16px}.nav-item:hover,.nav-item.active{background:var(--sidebar-hover);color:#fff}.nav-item.active{box-shadow:inset 3px 0 var(--primary)}.side-bottom{margin-top:auto}.side-bottom label{color:#9bacc1}.side-bottom input{background:#0b1a2f;border-color:#294563;color:#fff}.side-bottom .primary{margin:2px 0 8px}.workspace{min-width:0;padding:0 30px 40px}.topbar{min-height:90px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.topbar h2{margin:0;font-size:22px}.topbar p,.toolbar p{margin:5px 0 0;color:var(--muted);font-size:13px}.screen-state{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:20px;background:#eaf8f3;color:#147b59;font-size:13px}.screen-state i{width:8px;height:8px;border-radius:50%;background:var(--green)}.page{display:none;padding-top:26px}.page.active{display:block}.toolbar{display:flex;align-items:center;gap:10px;margin-bottom:18px}.toolbar .search{flex:1;max-width:420px}.toolbar h3{margin:0}.toolbar>div:first-child:not(.search){flex:1}.table-wrap{overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:14px}table{width:100%;border-collapse:collapse}th,td{padding:16px 18px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}th{background:#f8fafc;color:#637086;font-weight:600}tbody tr:last-child td{border-bottom:0}.member-name{display:flex;align-items:center;gap:10px;font-weight:650}.avatar{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:#e5f0ff;color:var(--primary)}.badge{display:inline-flex;padding:4px 9px;border-radius:12px;background:#edf2f8;color:#65738a;font-size:12px}.badge.online{background:#e7f8f1;color:#11815a}.action-btn{padding:7px 11px;background:#eaf2ff;color:var(--primary)}.action-btn.danger{margin-left:6px;background:#fff0f1;color:var(--danger)}.empty{padding:52px 20px;text-align:center;color:var(--muted)}.device-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(265px,1fr));gap:16px}.device-card{padding:20px;background:#fff;border:1px solid var(--line);border-radius:14px}.device-card header{display:flex;justify-content:space-between;align-items:center}.device-card h4{margin:0;font-size:16px}.device-card dl{margin:18px 0 0;display:grid;grid-template-columns:auto 1fr;gap:9px 14px;font-size:13px}.device-card dt{color:var(--muted)}.device-card dd{margin:0;text-align:right}dialog{width:min(520px,calc(100% - 32px));padding:0;border:0;border-radius:16px;box-shadow:0 24px 80px #0a1d3740}dialog::backdrop{background:#0815277a}.dialog-card{padding:24px}.dialog-card header{display:flex;justify-content:space-between;margin-bottom:22px}.dialog-card h3{margin:0;font-size:20px}.dialog-card header p{margin:5px 0 0;color:var(--muted);font-size:13px}.close{width:34px;height:34px;background:#eff3f8;color:#526078;font-size:22px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:22px}@media(max-width:820px){.app{grid-template-columns:84px 1fr}.sidebar{padding:18px 10px}.brand>div:last-child,.nav-item:not(.active) span+*,.nav-item{font-size:0}.brand{justify-content:center;padding-inline:0}.nav-item{justify-content:center}.nav-item span{font-size:20px}.side-bottom label{font-size:0}.side-bottom input{font-size:11px;padding:8px 5px}.side-bottom .primary{font-size:12px;padding:10px 5px}.side-bottom .copy{display:none}.workspace{padding-inline:16px}.table-wrap{overflow-x:auto}table{min-width:720px}}