:root{--canvas:#f5f7fa;--surface:#f9fafc;--ink:#111827;--muted:#667085;--line:#dfe4ea;--blue:#0071e3;--green:#0a7f42;--amber:#b26a00;--red:#b42318;color:var(--ink);background:var(--canvas);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,Noto Sans SC,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input{font:inherit}button{-webkit-tap-highlight-color:transparent}input[type=checkbox]{width:16px;height:16px;accent-color:var(--blue)}.login-page,.app-shell{min-height:100vh}.login-page{background:linear-gradient(#ffffffe0,#f6f8fbf5),#f5f7fa;grid-template-columns:minmax(320px,420px) minmax(420px,720px);justify-content:center;align-items:center;gap:32px;padding:40px;display:grid}.login-panel,.login-snapshot,.panel,.device-panel,.health-tile,.metric{border:1px solid var(--line);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#ffffffeb;box-shadow:0 18px 45px #19202c14}.login-panel{border-radius:18px;padding:28px}.brand-row{align-items:center;gap:14px;margin-bottom:26px;display:flex}.brand-mark{color:#fff;background:#111827;border-radius:14px;justify-content:center;align-items:center;width:48px;height:48px;display:inline-flex;box-shadow:inset 0 1px #ffffff38}.brand-mark.small{border-radius:10px;width:34px;height:34px}.eyebrow{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin:0 0 4px;font-size:12px;font-weight:700}.login-panel h1,.topbar h2{color:var(--ink);letter-spacing:0;margin:0}.login-panel h1{font-size:30px}.login-panel label{color:var(--muted);margin-top:16px;font-size:13px;font-weight:600;display:block}.login-panel input,.input-with-icon input{width:100%;min-width:0;color:var(--ink);background:0 0;border:0;outline:none}.login-panel label input{border:1px solid 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span{color:var(--muted);font-size:12px}.sidebar nav{gap:4px;padding:8px 12px;display:grid}.nav-item{color:#4b5563;text-align:left;background:0 0;border-radius:10px;gap:10px;padding:10px 12px;font-weight:650}.nav-item.active{color:#0b63ce;background:#eaf2ff}.sidebar-footer{margin-top:auto;padding:14px}.role-switch{width:100%;color:var(--ink);border:1px solid var(--line);background:#fff;border-radius:10px;gap:8px;padding:10px}.portal-domain{border:1px solid var(--line);background:#fff;border-radius:10px;flex-direction:column;align-items:flex-start;gap:4px;padding:10px 12px}.portal-domain span{color:var(--muted);font-size:12px}.portal-domain strong{color:var(--ink);letter-spacing:0;font-size:13px}.workspace{min-width:0;padding:22px}.topbar{z-index:3;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#f6f8fbdb;justify-content:space-between;gap:18px;margin:-22px -22px 22px;padding:18px 22px;position:sticky;top:0}.topbar 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