:root {
      --bg: #f3f7f8;
      --panel: #ffffff;
      --ink: #152528;
      --muted: #718286;
      --line: #dce6e8;
      --brand: #087f8c;
      --brand-dark: #065e68;
      --brand-soft: #e4f4f3;
      --ok: #16865b;
      --ok-soft: #e6f5ed;
      --warn: #d68116;
      --warn-soft: #fff1dc;
      --danger: #d34949;
      --danger-soft: #fdeaea;
      --nav: #102d32;
      --shadow: 0 10px 30px rgba(21, 57, 62, .07);
      --radius: 8px;
    }

    * { box-sizing: border-box; }
    html, body { min-height: 100%; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--bg);
      font-family: "Noto Sans SC", system-ui, sans-serif;
      letter-spacing: 0;
    }
    button, input, select { font: inherit; }
    button { cursor: pointer; }
    .hidden { display: none !important; }
    .icon { width: 18px; height: 18px; stroke-width: 2; flex: 0 0 auto; }

    /* Login */
    .login-screen {
      min-height: 100vh;
      display: grid;
      grid-template-columns: minmax(420px, 1.15fr) minmax(420px, .85fr);
      background: #f8fbfb;
    }
    .login-visual {
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 48px 56px;
      color: white;
      background:
        linear-gradient(145deg, rgba(7, 70, 78, .94), rgba(9, 131, 142, .88)),
        radial-gradient(circle at 80% 18%, rgba(255,255,255,.16), transparent 28%);
    }
    .login-visual::after {
      content: "";
      position: absolute;
      right: -8%;
      bottom: -22%;
      width: 74%;
      aspect-ratio: 1;
      border: 1px solid rgba(255,255,255,.14);
      border-radius: 50%;
      box-shadow: 0 0 0 48px rgba(255,255,255,.035), 0 0 0 96px rgba(255,255,255,.025);
    }
    .brand { position: relative; z-index: 1; display: flex; align-items: center; gap: 12px; font-weight: 700; font-size: 20px; }
    .brand-mark { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 8px; background: #fff; color: var(--brand); }
    .brand-mark .icon { width: 23px; height: 23px; fill: currentColor; stroke-width: 1.5; }
    .login-copy { position: relative; z-index: 1; max-width: 660px; margin-bottom: 10vh; }
    .login-copy .eyebrow { font-size: 13px; font-weight: 700; letter-spacing: 2px; opacity: .72; }
    .login-copy h1 { margin: 18px 0 22px; font-family: Manrope, "Noto Sans SC", sans-serif; font-size: clamp(38px, 4.5vw, 68px); line-height: 1.08; letter-spacing: 0; }
    .login-copy p { max-width: 540px; margin: 0; color: rgba(255,255,255,.76); font-size: 17px; line-height: 1.8; }
    .login-metrics { position: relative; z-index: 1; display: flex; gap: 36px; }
    .login-metric strong { display: block; font: 800 24px Manrope, sans-serif; }
    .login-metric span { color: rgba(255,255,255,.62); font-size: 12px; }
    .login-panel { display: grid; place-items: center; padding: 40px; }
    .login-box { width: min(430px, 100%); }
    .mobile-brand { display: none; color: var(--ink); margin-bottom: 44px; }
    .login-box h2 { margin: 0 0 10px; font-size: 29px; }
    .login-box > p { margin: 0 0 36px; color: var(--muted); }
    .field { margin-bottom: 20px; }
    .field label { display: block; margin-bottom: 9px; font-size: 13px; font-weight: 600; color: #465b5f; }
    .input-wrap { position: relative; }
    .input-wrap > .icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: #8ba0a4; }
    .input-wrap input, .field select {
      width: 100%; height: 48px; border: 1px solid var(--line); border-radius: 7px; background: #fff; color: var(--ink); outline: 0;
    }
    .input-wrap input { padding: 0 44px; }
    .field select { padding: 0 12px; }
    .input-wrap input:focus, .field select:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(8,127,140,.1); }
    .password-toggle { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); width: 36px; height: 36px; border: 0; background: transparent; color: var(--muted); display: grid; place-items: center; }
    .login-options { display: flex; align-items: center; justify-content: space-between; margin: 2px 0 24px; color: var(--muted); font-size: 13px; }
    .checkbox-line { display: flex; align-items: center; gap: 8px; }
    .checkbox-line input { accent-color: var(--brand); }
    .text-link { border: 0; background: none; color: var(--brand); padding: 0; }
    .primary-btn { width: 100%; height: 48px; display: flex; justify-content: center; align-items: center; gap: 9px; border: 0; border-radius: 7px; background: var(--brand); color: #fff; font-weight: 700; box-shadow: 0 8px 18px rgba(8,127,140,.18); }
    .primary-btn:hover { background: var(--brand-dark); }
    .demo-tip { margin-top: 20px; padding: 13px 15px; background: var(--brand-soft); color: #426d70; border-radius: 6px; font-size: 12px; line-height: 1.6; }
    .login-error { min-height: 21px; margin: -10px 0 8px; color: var(--danger); font-size: 12px; }

    /* App shell */
    .app { min-height: 100vh; display: grid; grid-template-columns: 224px 1fr; }
    .app.sidebar-collapsed { grid-template-columns: 72px 1fr; }
    .app, .sidebar { transition: grid-template-columns .22s ease, width .22s ease, padding .22s ease; }
    .app.sidebar-collapsed .sidebar { padding-inline: 10px; }
    .app.sidebar-collapsed .sidebar .brand { justify-content: center; padding-inline: 0; }
    .app.sidebar-collapsed .sidebar .brand span:not(.brand-mark),
    .app.sidebar-collapsed .nav-label,
    .app.sidebar-collapsed .nav-item span:not(.nav-badge),
    .app.sidebar-collapsed .sidebar .nav-badge,
    .app.sidebar-collapsed .user-mini > div:nth-child(2),
    .app.sidebar-collapsed .user-mini .icon-btn { display: none; }
    .app.sidebar-collapsed .nav-item { justify-content: center; padding: 0; }
    .app.sidebar-collapsed .user-mini { grid-template-columns: 1fr; justify-items: center; padding: 0; }
    .sidebar { min-height: 100vh; position: sticky; top: 0; height: 100vh; padding: 24px 16px 18px; display: flex; flex-direction: column; color: #d9e7e8; background: var(--nav); }
    .sidebar .brand { padding: 0 8px 28px; }
    .sidebar .brand-mark { width: 34px; height: 34px; }
    .nav-label { margin: 10px 12px 8px; font-size: 10px; font-weight: 700; letter-spacing: 1.6px; color: #6f9297; }
    .nav-list { display: grid; gap: 5px; }
    .nav-item { height: 42px; display: flex; align-items: center; gap: 12px; width: 100%; padding: 0 12px; border: 0; border-radius: 6px; color: #aac0c3; background: transparent; text-align: left; font-size: 14px; }
    .nav-item:hover { color: white; background: rgba(255,255,255,.055); }
    .nav-item.active { color: white; background: #1a5057; }
    .nav-item .nav-badge { margin-left: auto; min-width: 20px; height: 20px; display: grid; place-items: center; padding: 0 6px; border-radius: 10px; color: #ffdca6; background: rgba(214,129,22,.22); font: 700 11px Manrope, sans-serif; }
    .sidebar-footer { margin-top: auto; border-top: 1px solid rgba(255,255,255,.08); padding-top: 16px; }
    .user-mini { display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 10px; padding: 0 8px; }
    .avatar { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: #dceff0; color: var(--brand-dark); font-size: 12px; font-weight: 700; }
    .user-mini strong { display: block; font-size: 12px; color: #fff; }
    .user-mini span { color: #78989d; font-size: 10px; }
    .icon-btn { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: #60777b; }
    .icon-btn:hover { color: var(--brand); border-color: #b9d4d7; }
    .sidebar .icon-btn { width: 30px; height: 30px; border: 0; color: #8aa7ab; background: transparent; }

    .main { min-width: 0; }
    .topbar { height: 68px; display: flex; align-items: center; padding: 0 28px; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.92); backdrop-filter: blur(12px); position: sticky; top: 0; z-index: 10; }
    .page-title { min-width: 0; margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 19px; font-weight: 700; }
    .topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }
    .live-chip { display: flex; align-items: center; gap: 7px; padding: 7px 10px; border: 1px solid #cfe5dc; border-radius: 6px; color: var(--ok); background: #f4fbf7; font-size: 12px; font-weight: 600; }
    .live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 4px rgba(22,134,91,.10); animation: pulse 1.8s infinite; }
    @keyframes pulse { 50% { box-shadow: 0 0 0 7px rgba(22,134,91,0); } }
    .clock { min-width: 122px; color: var(--muted); font: 600 12px Manrope, sans-serif; }
    .mobile-menu { display: none; }
    .sidebar-toggle { margin-right: 12px; }
    .content { padding: 24px 28px 36px; }
    .view { display: none; }
    .view.active { display: block; }

    /* Dashboard */
    .summary-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 18px; }
    .summary-card { min-height: 110px; display: grid; grid-template-columns: 44px 1fr; align-items: center; gap: 14px; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); box-shadow: var(--shadow); }
    .summary-icon { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 7px; background: var(--brand-soft); color: var(--brand); }
    .summary-card.warn .summary-icon { background: var(--warn-soft); color: var(--warn); }
    .summary-card.danger .summary-icon { background: var(--danger-soft); color: var(--danger); }
    .summary-card.ok .summary-icon { background: var(--ok-soft); color: var(--ok); }
    .summary-value { font: 800 28px Manrope, sans-serif; line-height: 1; }
    .summary-value small { margin-left: 3px; color: var(--muted); font: 500 12px "Noto Sans SC", sans-serif; }
    .summary-label { margin-top: 8px; color: var(--muted); font-size: 12px; }
    .section-bar { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin: 22px 0 13px; }
    .section-bar h2 { margin: 0 0 4px; font-size: 16px; }
    .section-bar p { margin: 0; color: var(--muted); font-size: 12px; }
    .filter-tabs { display: flex; padding: 3px; border: 1px solid var(--line); border-radius: 7px; background: #eaf0f1; }
    .filter-tab { min-width: 68px; height: 31px; padding: 0 12px; border: 0; border-radius: 5px; color: var(--muted); background: transparent; font-size: 12px; }
    .filter-tab.active { color: var(--ink); background: #fff; box-shadow: 0 1px 5px rgba(20,50,54,.08); font-weight: 600; }
    .device-scroll-viewport { height: calc(100vh - 350px); min-height: 360px; overflow: hidden; }
    .device-loop, .alarm-loop { will-change: transform; }
    .device-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; padding-bottom: 14px; }
    .alarm-scroll-viewport { height: calc(100vh - 260px); min-height: 500px; overflow: hidden; }
    .tv-layout { display: grid; grid-template-columns: minmax(0, 3fr) minmax(300px, 1fr); align-items: start; gap: 18px; }
    .monitor-column { min-width: 0; }
    .alarm-column { min-width: 0; position: sticky; top: 92px; }
    .alert-center { overflow: hidden; border: 1px solid #edc6c6; border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
    .alert-center-head { min-height: 110px; display: flex; align-items: center; gap: 12px; padding: 10px 16px; border-bottom: 1px solid #f1dcdc; background: #fffafa; }
    .alert-center-head .summary-icon { width: 38px; height: 38px; background: var(--danger-soft); color: var(--danger); }
    .alert-center-head h2 { margin: 0 0 3px; font-size: 15px; }
    .alert-center-head p { margin: 0; color: var(--muted); font-size: 11px; }
    .alert-type-summary { margin-left: auto; display: flex; flex-direction: column; align-items: flex-end; gap: 5px; }
    .alert-type-chip { padding: 6px 9px; border-radius: 5px; color: #75613f; background: var(--warn-soft); font-size: 10px; font-weight: 600; }
    .alert-type-chip.fault { color: #973b3b; background: var(--danger-soft); }
    .alert-table-wrap { overflow-x: auto; }
    .alert-table { min-width: 900px; }
    .alert-table td { height: 54px; }
    .alert-level { display: inline-flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 700; }
    .alert-level::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--warn); }
    .alert-level.critical { color: var(--danger); }
    .alert-level.critical::before { background: var(--danger); box-shadow: 0 0 0 4px rgba(211,73,73,.10); }
    .alert-title strong { display: block; font-size: 12px; }
    .alert-title span { display: block; max-width: 360px; margin-top: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: 10px; }
    .alert-title .alert-item { display: block; max-width: 410px; margin: 2px 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: 10px; line-height: 1.45; }
    .code-chip { display: inline-block; padding: 3px 6px; border: 1px solid #e5d3d3; border-radius: 4px; color: #8c4545; background: #fff9f9; font: 700 10px Manrope, sans-serif; }
    .alert-pager { min-height: 48px; display: flex; align-items: center; padding: 0 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
    .alert-pager strong { color: var(--ink); }
    .alert-pager-controls { margin-left: auto; display: flex; align-items: center; gap: 7px; }
    .alert-pager .page-btn:disabled { opacity: .4; cursor: not-allowed; }
    .alarm-list { display: grid; }
    .alarm-item { padding: 14px 15px; border-bottom: 1px solid rgba(110,120,122,.14); background: #fff; }
    .alarm-item:last-child { border-bottom: 0; }
    .alarm-item.fault { border-left: 4px solid var(--danger); padding-left: 11px; background: #fff0f0; }
    .alarm-item.water { border-left: 4px solid var(--warn); padding-left: 11px; background: #fff8e8; }
    .alarm-item.fault:nth-child(even) { background: #fde8e8; }
    .alarm-item.water:nth-child(even) { background: #fff3d7; }
    .alarm-meta { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 9px; }
    .alarm-location { min-width: 0; flex: 1 1 auto; display: flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; }
    .alarm-location .icon { flex: 0 0 auto; width: 15px; height: 15px; color: var(--danger); }
    .alarm-location span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .alarm-time { margin-left: auto; color: var(--muted); font: 600 10px Manrope, sans-serif; white-space: nowrap; }
    .alarm-kind { display: inline-flex; flex: 0 0 auto; padding: 3px 6px; border-radius: 4px; font-size: 9px; font-weight: 700; }
    .alarm-kind.fault { color: #a33131; background: rgba(211,73,73,.13); }
    .alarm-kind.water { color: #9a6010; background: rgba(214,129,22,.14); }
    .alarm-detail { padding: 8px 0; border-top: 1px dashed #ebeeee; }
    .alarm-detail:first-of-type { padding-top: 0; border-top: 0; }
    .alarm-detail strong { display: block; margin-bottom: 4px; font-size: 11px; }
    .alarm-detail p { display: -webkit-box; overflow: hidden; margin: 0; color: var(--muted); font-size: 10px; line-height: 1.55; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
    .alarm-empty { min-height: 180px; display: grid; place-items: center; color: var(--muted); font-size: 12px; }
    .device-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); box-shadow: 0 7px 20px rgba(21,57,62,.045); }
    .device-grid .device-card { height: 100%; }
    .device-card[data-status="offline"] { opacity: .74; }
    .device-head { display: flex; align-items: center; gap: 10px; padding: 14px 14px 12px; border-bottom: 1px solid #edf2f3; }
    .device-number { width: 35px; height: 35px; display: grid; place-items: center; border-radius: 6px; background: #edf6f6; color: var(--brand-dark); font: 800 12px Manrope, sans-serif; }
    .device-name { min-width: 0; }
    .device-name strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
    .device-name span { display: block; margin-top: 2px; color: var(--muted); font-size: 10px; }
    .status-pill { margin-left: auto; display: flex; align-items: center; gap: 5px; color: var(--ok); font-size: 10px; white-space: nowrap; }
    .status-pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
    .status-pill.warn { color: var(--warn); }
    .status-pill.danger, .status-pill.offline { color: var(--danger); }
    .health-area { display: grid; grid-template-columns: 76px 1fr; align-items: center; gap: 12px; padding: 15px 14px 10px; }
    .health-ring { --score: 90; --ring: var(--ok); width: 72px; aspect-ratio: 1; display: grid; place-items: center; border-radius: 50%; background: conic-gradient(var(--ring) calc(var(--score) * 1%), #e8eff0 0); position: relative; }
    .health-ring::after { content: ""; position: absolute; inset: 7px; border-radius: 50%; background: white; }
    .health-ring span { position: relative; z-index: 1; font: 800 19px Manrope, sans-serif; }
    .health-ring span small { font-size: 9px; color: var(--muted); }
    .health-main label { color: var(--muted); font-size: 10px; }
    .health-main strong { display: block; margin: 4px 0 8px; font-size: 15px; }
    .health-main .issue { min-height: 28px; color: var(--muted); font-size: 10px; line-height: 1.4; }
    .health-main .issue.alert { color: var(--danger); }
    .device-data { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0 14px; padding: 11px 0 13px; border-top: 1px solid #edf2f3; }
    .datum { text-align: center; border-right: 1px solid #edf2f3; }
    .datum:last-child { border-right: 0; }
    .datum strong { display: block; font: 700 12px Manrope, sans-serif; }
    .datum span { color: var(--muted); font-size: 9px; }
    .filter-bar { height: 5px; background: #e8eff0; }
    .filter-bar > span { display: block; height: 100%; background: var(--ok); }
    .filter-bar > span.warn { background: var(--warn); }
    .filter-bar > span.danger { background: var(--danger); }
    .device-grid.compact .device-head { padding: 10px 12px 8px; }
    .device-grid.compact .health-area { grid-template-columns: 58px 1fr; padding: 10px 12px 7px; }
    .device-grid.compact .health-ring { width: 56px; }
    .device-grid.compact .health-ring span { font-size: 16px; }
    .device-grid.compact .health-main strong { margin: 2px 0 4px; font-size: 13px; }
    .device-grid.compact .device-data { padding: 7px 0 9px; }
    .device-grid.ultra-compact .device-head { padding: 7px 9px 6px; }
    .device-grid.ultra-compact .device-number { width: 29px; height: 29px; }
    .device-grid.ultra-compact .health-area { grid-template-columns: 46px 1fr; gap: 8px; padding: 7px 9px 5px; }
    .device-grid.ultra-compact .health-ring { width: 46px; }
    .device-grid.ultra-compact .health-ring::after { inset: 5px; }
    .device-grid.ultra-compact .health-ring span { font-size: 13px; }
    .device-grid.ultra-compact .health-main label { display: none; }
    .device-grid.ultra-compact .health-main strong { margin: 0 0 2px; font-size: 12px; }
    .device-grid.ultra-compact .health-main .issue { min-height: 14px; display: -webkit-box; overflow: hidden; -webkit-line-clamp: 1; -webkit-box-orient: vertical; }
    .device-grid.ultra-compact .device-data { margin: 0 9px; padding: 5px 0 6px; }
    .device-grid.ultra-compact .datum strong { font-size: 10px; }

    /* Management */
    .toolbar { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
    .search-box { position: relative; width: min(340px, 100%); }
    .search-box .icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: #8aa0a4; }
    .search-box input { width: 100%; height: 40px; padding: 0 12px 0 38px; border: 1px solid var(--line); border-radius: 6px; outline: 0; background: #fff; }
    .search-box input:focus { border-color: var(--brand); }
    .spacer { flex: 1; }
    .btn { height: 40px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 0 14px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: #42585c; font-size: 13px; font-weight: 600; }
    .btn:hover { border-color: #a9c5c8; color: var(--brand-dark); }
    .btn.primary { border-color: var(--brand); background: var(--brand); color: #fff; }
    .table-panel { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
    table { width: 100%; border-collapse: collapse; }
    th { height: 44px; padding: 0 16px; background: #f7f9fa; color: #677b7f; font-size: 11px; text-align: left; font-weight: 600; }
    td { height: 62px; padding: 0 16px; border-top: 1px solid #edf1f2; font-size: 13px; }
    .person-cell { display: flex; align-items: center; gap: 10px; }
    .person-cell .avatar { width: 32px; height: 32px; }
    .person-cell strong { display: block; font-size: 12px; }
    .person-cell span { color: var(--muted); font-size: 10px; }
    .role { display: inline-flex; padding: 4px 8px; border-radius: 4px; color: var(--brand-dark); background: var(--brand-soft); font-size: 10px; }
    .role.gray { color: #586a6e; background: #edf1f2; }
    .bind-count { color: var(--brand); font-weight: 700; }
    .row-actions { display: flex; gap: 5px; }
    .row-actions .icon-btn { width: 32px; height: 32px; }
    .table-footer { height: 52px; display: flex; align-items: center; padding: 0 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
    .pagination { margin-left: auto; display: flex; gap: 5px; }
    .page-btn { width: 29px; height: 29px; border: 1px solid var(--line); border-radius: 5px; background: #fff; color: var(--muted); }
    .page-btn.active { border-color: var(--brand); color: #fff; background: var(--brand); }

    /* Binding */
    .binding-layout { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 16px; }
    .user-list-panel, .bind-panel { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
    .panel-head { min-height: 60px; display: flex; align-items: center; padding: 0 18px; border-bottom: 1px solid var(--line); }
    .panel-head h3 { margin: 0; font-size: 14px; }
    .panel-head span { margin-left: auto; color: var(--muted); font-size: 11px; }
    .user-select-list { padding: 8px; }
    .user-select { width: 100%; display: grid; grid-template-columns: 32px 1fr auto; align-items: center; gap: 9px; padding: 10px; border: 0; border-radius: 6px; background: transparent; text-align: left; }
    .user-select:hover { background: #f4f8f8; }
    .user-select.active { background: var(--brand-soft); }
    .user-select .avatar { width: 32px; height: 32px; }
    .user-select strong { display: block; font-size: 12px; }
    .user-select small { color: var(--muted); font-size: 10px; }
    .user-select em { color: var(--brand); font: normal 700 11px Manrope, sans-serif; }
    .bind-panel { overflow: hidden; }
    .bind-summary { padding: 18px; display: flex; align-items: center; gap: 14px; border-bottom: 1px solid var(--line); background: #fbfdfd; }
    .bind-summary .avatar { width: 42px; height: 42px; }
    .bind-summary strong { display: block; font-size: 14px; }
    .bind-summary span { color: var(--muted); font-size: 11px; }
    .bind-summary .btn { margin-left: auto; }
    .machine-check-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; padding: 18px; }
    .machine-check { position: relative; display: grid; grid-template-columns: 42px 1fr auto; align-items: center; gap: 11px; min-height: 72px; padding: 11px 13px; border: 1px solid var(--line); border-radius: 7px; cursor: pointer; }
    .machine-check:has(input:checked) { border-color: #74b9bf; background: #f3fafa; box-shadow: inset 0 0 0 1px #74b9bf; }
    .machine-check:has(input:disabled) { opacity: .58; cursor: not-allowed; background: #f5f7f7; }
    .machine-check input { position: absolute; top: 10px; right: 10px; accent-color: var(--brand); }
    .machine-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 6px; color: var(--brand); background: var(--brand-soft); }
    .machine-check strong { display: block; font-size: 12px; }
    .machine-check span { color: var(--muted); font-size: 10px; }
    .mini-state { align-self: end; color: var(--ok); font-size: 9px; }
    .mini-state.warn { color: var(--warn); }
    .mini-state.offline { color: var(--danger); }

    /* Modal + toast */
    .modal-backdrop { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 20px; background: rgba(10,30,33,.52); backdrop-filter: blur(3px); }
    .modal { width: min(520px, 100%); border-radius: 8px; background: #fff; box-shadow: 0 24px 70px rgba(0,0,0,.22); }
    .modal-head { height: 62px; display: flex; align-items: center; padding: 0 20px; border-bottom: 1px solid var(--line); }
    .modal-head h3 { margin: 0; font-size: 16px; }
    .modal-head .icon-btn { margin-left: auto; }
    .modal-body { padding: 20px; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
    .form-grid .full { grid-column: 1 / -1; }
    .modal-foot { height: 66px; display: flex; align-items: center; justify-content: flex-end; gap: 9px; padding: 0 20px; border-top: 1px solid var(--line); }
    .toast { position: fixed; right: 24px; bottom: 24px; z-index: 80; display: flex; align-items: center; gap: 10px; min-width: 280px; padding: 14px 16px; border-radius: 7px; color: #fff; background: #17494f; box-shadow: 0 14px 30px rgba(0,0,0,.18); font-size: 13px; transform: translateY(20px); opacity: 0; pointer-events: none; transition: .25s; }
    .toast.show { transform: translateY(0); opacity: 1; }
    .toast.error { background: var(--danger); }
    .config-value { width: 100%; min-width: 220px; height: 34px; padding: 0 10px; border: 1px solid var(--line); border-radius: 5px; color: var(--ink); background: #fff; font: 12px Manrope, "Noto Sans SC", sans-serif; }
    .config-value:focus { outline: 0; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(8,127,140,.1); }

    @media (min-width: 1550px) {
      .app { grid-template-columns: 244px 1fr; }
      .content { padding: 28px 34px 40px; }
      .device-grid { gap: 18px; }
      .device-card { min-height: 250px; }
    }
    @media (max-width: 1260px) {
      .device-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
      .tv-layout { grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr); }
    }
    @media (max-width: 980px) {
      .login-screen { grid-template-columns: 1fr; }
      .login-visual { display: none; }
      .mobile-brand { display: flex; }
      .app { grid-template-columns: 72px 1fr; }
      .sidebar { padding-inline: 10px; }
      .sidebar .brand span, .nav-label, .nav-item span:not(.nav-badge), .user-mini > div:nth-child(2), .sidebar .nav-badge { display: none; }
      .sidebar .brand { justify-content: center; padding-inline: 0; }
      .nav-item { justify-content: center; padding: 0; }
      .user-mini { grid-template-columns: 1fr; justify-items: center; padding: 0; }
      .user-mini .icon-btn { display: none; }
      .summary-grid { grid-template-columns: repeat(2, 1fr); }
      .device-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .device-scroll-viewport, .alarm-scroll-viewport { height: auto; min-height: 0; overflow: visible; }
      .tv-layout { grid-template-columns: 1fr; }
      .alarm-column { position: static; }
      .binding-layout { grid-template-columns: 230px minmax(0, 1fr); }
      .machine-check-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 720px) {
      .app { display: block; }
      .app.sidebar-collapsed { display: block; }
      .sidebar { position: fixed; left: -240px; z-index: 40; width: 224px; transition: left .2s; }
      .sidebar.open { left: 0; }
      .sidebar .brand span, .nav-label, .nav-item span:not(.nav-badge), .user-mini > div:nth-child(2), .sidebar .nav-badge { display: initial; }
      .nav-item { justify-content: flex-start; padding: 0 12px; }
      .user-mini { grid-template-columns: 34px 1fr auto; justify-items: initial; padding: 0 8px; }
      .user-mini .icon-btn { display: grid; }
      .mobile-menu { display: grid; margin-right: 10px; }
      .sidebar-toggle { display: none; }
      .topbar { height: 60px; padding: 0 14px; }
      .clock { display: none; }
      .content { padding: 16px 14px 28px; }
      .summary-grid, .device-grid { grid-template-columns: 1fr; }
      .section-bar { align-items: stretch; flex-direction: column; }
      .alert-center-head { align-items: flex-start; }
      .alert-type-summary { margin-left: 0; flex-direction: column; }
      .filter-tabs { align-self: flex-start; }
      .toolbar { flex-wrap: wrap; }
      .toolbar .search-box { width: 100%; }
      .toolbar .spacer { display: none; }
      .table-panel { overflow-x: auto; }
      table { min-width: 760px; }
      .binding-layout { grid-template-columns: 1fr; }
      .user-list-panel { max-height: 280px; overflow: auto; }
      .machine-check-grid { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .form-grid .full { grid-column: auto; }
      .login-panel { padding: 28px 20px; }
    }