:root{--bg: #f4f6f9;--panel: #ffffff;--border: #e2e7ef;--text: #24303f;--muted: #7b8794;--primary: #1f6feb;--primary-dark: #1a5fd0;--green: #2e9e5b;--red: #d6453d;--orange: #e8912d;--shadow: 0 1px 3px rgba(20, 30, 50, .08)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);font-size:14px}h1,h2,h3{font-weight:600}h2{font-size:20px;margin:0}h3{font-size:15px;margin:0 0 10px}.muted{color:var(--muted)}.mono{font-variant-numeric:tabular-nums}.center{text-align:center}.shell{display:flex;min-height:100vh}.sidebar{width:210px;flex-shrink:0;background:#1c2733;color:#d7dee8;display:flex;flex-direction:column}.brand{padding:20px 18px;font-size:17px;font-weight:700;color:#fff;letter-spacing:.3px}.brand-mark{color:var(--primary)}.sidebar nav{display:flex;flex-direction:column;padding:8px;gap:2px}.nav-link{padding:10px 12px;border-radius:6px;color:#b8c2cf;text-decoration:none;transition:background .15s,color .15s}.nav-link:hover{background:#ffffff0f;color:#fff}.nav-link.active{background:var(--primary);color:#fff}.nav-badge{display:inline-block;margin-left:8px;min-width:18px;padding:1px 5px;border-radius:9px;background:var(--red);color:#fff;font-size:11px;font-weight:700;line-height:16px;text-align:center}.main{flex:1;display:flex;flex-direction:column;min-width:0}.topbar{height:56px;background:var(--panel);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 20px}.topbar-title{font-weight:600}.topbar-actions{display:flex;align-items:center;gap:12px}.content{padding:20px;overflow:auto}.page-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:16px}.btn{padding:7px 14px;border:1px solid var(--border);border-radius:6px;background:var(--panel);color:var(--text);cursor:pointer;font-size:13px}.btn:hover:not(:disabled){border-color:#c6cfdb}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-ghost{border-color:transparent;color:var(--muted)}.btn-ghost:hover:not(:disabled){color:var(--text)}input,select{padding:6px 8px;border:1px solid var(--border);border-radius:5px;font-size:13px;color:var(--text);background:#fff}input:focus,select:focus{outline:2px solid rgba(31,111,235,.25);border-color:var(--primary)}.input-invalid{border-color:var(--red)}.form-error{color:var(--red);font-size:13px}.saved-note{color:var(--green);font-size:13px}.lang-switch{display:inline-flex;border:1px solid var(--border);border-radius:6px;overflow:hidden}.lang-switch button{padding:5px 12px;border:none;background:var(--panel);color:var(--muted);cursor:pointer;font-size:13px}.lang-switch button.active{background:var(--primary);color:#fff}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;position:relative}.login-lang{position:absolute;top:20px;right:24px}.login-card{width:340px;background:var(--panel);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);padding:28px;display:flex;flex-direction:column;gap:14px}.login-card h1{font-size:19px;margin:0}.login-card p{margin:-6px 0 4px}.login-card label{display:flex;flex-direction:column;gap:5px;font-size:13px}.legend{display:flex;align-items:center;gap:14px;font-size:13px}.legend-item{display:inline-flex;align-items:center;gap:5px}.dot{width:10px;height:10px;border-radius:50%;display:inline-block}.dot-normal{background:var(--green)}.dot-alert{background:var(--red)}.dot-responding{background:var(--orange)}.room-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.room-card{background:var(--panel);border:1px solid var(--border);border-left:4px solid var(--green);border-radius:8px;box-shadow:var(--shadow);padding:10px 12px}.room-card.status-alert{border-left-color:var(--red);background:#fdf1f0;animation:pulse 1.4s ease-in-out infinite}.room-card.status-responding{border-left-color:var(--orange);background:#fdf7ee}@keyframes pulse{0%,to{box-shadow:var(--shadow)}50%{box-shadow:0 0 0 4px #d6453d40}}.room-card-top{display:flex;align-items:center;justify-content:space-between}.room-name{font-weight:600;font-size:13px}.device-dot{width:8px;height:8px;border-radius:50%}.device-dot.on{background:var(--green)}.device-dot.off{background:#b0b8c4;outline:2px solid rgba(214,69,61,.5)}.room-resident{font-size:12px;margin:3px 0 6px}.room-vitals{display:flex;gap:12px;font-size:12px;font-variant-numeric:tabular-nums}.room-vitals em{font-style:normal;color:var(--muted);font-size:10px}.btn-planned-exit{margin-top:8px;width:100%;padding:3px 8px;font-size:11px}.btn-planned-exit.strict{background:#fdf3e3;border-color:var(--orange);color:#b26a10;font-weight:600}.btn-planned-exit.strict:hover:not(:disabled){border-color:#b26a10}.toast{position:fixed;bottom:24px;right:24px;z-index:100;background:#1c2733;color:#fff;padding:10px 16px;border-radius:8px;box-shadow:0 4px 14px #141e324d;font-size:13px}.toast.error{background:var(--red)}.panel{background:var(--panel);border:1px solid var(--border);border-radius:8px;box-shadow:var(--shadow);padding:16px;margin-bottom:16px}.chart-panel{padding:20px 12px}.data-table{width:100%;border-collapse:collapse;font-size:13px}.data-table th{text-align:left;color:var(--muted);font-weight:600;padding:8px 10px;border-bottom:1px solid var(--border);white-space:nowrap}.data-table td{padding:8px 10px;border-bottom:1px solid #eef1f6}.data-table tr:last-child td{border-bottom:none}.table-empty{padding:8px 10px}.settings-table input[type=text]{width:130px}.settings-table input[type=number]{width:64px}.panel-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-bottom:8px}.panel-head h3{margin:0}.toolbar-tight{margin-bottom:0}.add-room-form{margin-top:14px;padding-top:12px;border-top:1px solid var(--border)}.add-room-form h4{margin:0 0 4px}.add-room-form .toolbar{align-items:center}.add-room-form input[type=text]{width:150px}.row-strict td{background:#fdf9f0}.strict-badge{display:inline-block;margin-left:6px;padding:1px 6px;border-radius:8px;background:#fdf3e3;color:#b26a10;font-size:11px;white-space:nowrap}.kpi-caption{margin:0 0 6px;font-size:12px}.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;margin-bottom:16px}.kpi-card{background:var(--panel);border:1px solid var(--border);border-radius:8px;box-shadow:var(--shadow);padding:12px 14px}.kpi-value{font-size:22px;font-weight:600;font-variant-numeric:tabular-nums}.kpi-label{font-size:12px;color:var(--muted);margin-top:2px}.type-badge,.status-badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px;white-space:nowrap}.type-fall{background:#fdecea;color:var(--red)}.type-bed_exit{background:#fdf3e3;color:#b26a10}.type-heart_rate{background:#eaf1fd;color:var(--primary)}.st-ringing{background:var(--red);color:#fff}.st-responding{background:var(--orange);color:#fff}.st-closed{background:#eef1f6;color:var(--muted)}.toolbar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:14px}.toolbar label{display:inline-flex;align-items:center;gap:6px;font-size:13px}.room-card.clickable{cursor:pointer;transition:box-shadow .12s,transform .12s}.room-card.clickable:hover{box-shadow:0 4px 14px #141e321f;transform:translateY(-1px)}.room-card.clickable:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.back-link{font-size:12px;color:var(--muted);text-decoration:none}.back-link:hover{color:var(--text)}.room-code-tag{font-weight:400;font-size:14px}.room-detail-head{display:flex;flex-wrap:wrap;gap:26px;padding:14px 16px;margin-bottom:14px}.rd-fact{display:flex;flex-direction:column;gap:2px}.rd-label{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.03em}.rd-value{font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}.rd-value em{font-size:11px;font-weight:400;color:var(--muted);font-style:normal}.rd-time-selector{gap:8px}.btn-toggle{font-size:12px;padding:5px 12px}.btn-toggle.active{background:var(--primary);color:#fff;border-color:var(--primary)}.rd-date-pick{margin-left:auto;font-size:12px}.rd-date-pick input{font-size:12px;padding:4px 6px;border:1px solid var(--border);border-radius:6px}