/* TOPページのみ gs-topbar を sticky 維持 */
    .gs-topbar {
      position: sticky;
      top: 0;
      backdrop-filter: blur(18px);
      z-index: 20;
    }
    :root {
      --text-xs: .75rem;
      --text-sm: .875rem;
      --text-base: 1rem;
      --text-lg: 1.125rem;
      --text-xl: clamp(1.45rem, 1.18rem + 1vw, 2rem);
      --color-bg: #f6f8fc;
      --color-surface: #ffffff;
      --color-surface-2: #f8fafd;
      --color-surface-3: #eef3fd;
      --color-border: rgba(60,64,67,.14);
      --color-divider: rgba(60,64,67,.10);
      --color-text: #202124;
      --color-text-muted: #5f6368;
      --color-text-faint: #80868b;
      --color-primary: #1a73e8;
      --color-primary-soft: rgba(26,115,232,.10);
      --color-green: #188038;
      --color-amber: #f29900;
      --shadow-1: 0 1px 2px rgba(60,64,67,.12), 0 1px 3px 1px rgba(60,64,67,.08);
      --shadow-2: 0 2px 6px rgba(60,64,67,.15), 0 8px 24px rgba(60,64,67,.10);
      --tr: 180ms cubic-bezier(.2,0,0,1);
    }
    [data-theme="dark"] {
      --color-bg: #0b1220;
      --color-surface: #111827;
      --color-surface-2: #172033;
      --color-surface-3: #1b2740;
      --color-border: rgba(255,255,255,.10);
      --color-divider: rgba(255,255,255,.08);
      --color-text: #edf2fb;
      --color-text-muted: #c0c9d6;
      --color-text-faint: #8ea0bb;
      --color-primary: #8ab4f8;
      --color-primary-soft: rgba(138,180,248,.14);
      --shadow-1: 0 1px 2px rgba(0,0,0,.35);
      --shadow-2: 0 12px 30px rgba(0,0,0,.30);
    }

    /* ログイン画面（Material Design 風） */
    body.page-bg {
      min-height: 100vh;
      background:
        radial-gradient(circle at 0% 0%, rgba(26,115,232,.10), transparent 26%),
        radial-gradient(circle at 100% 0%, rgba(52,168,83,.08), transparent 18%),
        #f6f8fc;
      font-family: 'Google Sans', 'Noto Sans JP', Arial, sans-serif;
    }
    .login-section {
      display: flex; flex-direction: column;
      align-items: center; justify-content: center;
      min-height: 100vh; padding: 40px 20px;
    }
    .login-container { width: 100%; max-width: 400px; }
    .login-card {
      background: #ffffff !important;
      border: 1px solid rgba(60,64,67,.14) !important;
      box-shadow: 0 2px 6px rgba(60,64,67,.15), 0 8px 24px rgba(60,64,67,.10) !important;
      border-radius: 28px !important;
      padding: 40px 40px 36px !important;
    }
    .login-header { text-align: center; margin-bottom: 28px !important; }
    .login-logo {
      width: 220px; height: auto;
      display: block;
      margin: 0 auto -2px !important;
      background: transparent;
      box-shadow: none;
      padding: 0;
    }
    .login-logo img { display: block; width: 100%; height: auto; }
    .login-header .login-title { margin-top: 0 !important; }
    .login-title {
      font-size: 20px !important; font-weight: 500 !important;
      color: #202124 !important; margin-bottom: 6px !important;
      letter-spacing: 0 !important;
    }
    .login-subtitle {
      font-size: 13px !important; color: #5f6368 !important;
      font-weight: 400 !important;
    }
    .login-card .form-group { margin-bottom: 16px; }
    .login-card label {
      display: block; font-size: 12px; font-weight: 500;
      color: #5f6368 !important; margin-bottom: 6px !important;
    }
    .login-card input[type="text"],
    .login-card input[type="password"] {
      width: 100% !important;
      height: 44px !important;
      border-radius: 9999px !important;
      border: 1px solid rgba(60,64,67,.14) !important;
      background: #ffffff !important;
      color: #202124 !important;
      font-size: 14px !important;
      padding: 0 18px !important;
      outline: none !important;
      box-shadow: 0 1px 2px rgba(60,64,67,.12), 0 1px 3px 1px rgba(60,64,67,.08) !important;
      transition: border-color 180ms, box-shadow 180ms !important;
    }
    .login-card input[type="text"]:focus,
    .login-card input[type="password"]:focus {
      border-color: #1a73e8 !important;
      box-shadow: 0 0 0 3px rgba(26,115,232,.10) !important;
    }
    .login-card .error-message {
      display: none;
      background: rgba(197,34,31,.08) !important;
      border: 1px solid rgba(197,34,31,.2) !important;
      border-radius: 10px !important;
      padding: 10px 14px !important;
      font-size: 12px !important;
      color: #c5221f !important;
      margin-bottom: 14px !important;
      text-align: center;
    }
    #loginBtn {
      width: 100% !important;
      height: 48px !important;
      border-radius: 9999px !important;
      border: none !important;
      background: #1a73e8 !important;
      color: #fff !important;
      font-size: 15px !important;
      font-weight: 500 !important;
      cursor: pointer !important;
      margin-top: 8px !important;
      box-shadow: 0 2px 6px rgba(60,64,67,.15), 0 8px 24px rgba(60,64,67,.10) !important;
      transition: background 180ms !important;
      padding: 0 !important;
    }
    #loginBtn:hover:not(:disabled) { background: #1558b0 !important; }
    #loginBtn:disabled { opacity: .6; cursor: not-allowed; }
    .login-footer {
      margin-top: 32px !important;
      font-size: 11px !important;
      color: #80868b !important;
      text-align: center;
    }

    /* ポータル本体 */
    .portal-section { display: none; }
    body.portal-on {
      background:
        radial-gradient(circle at 0% 0%, rgba(26,115,232,.10), transparent 26%),
        radial-gradient(circle at 100% 0%, rgba(52,168,83,.08), transparent 18%),
        var(--color-bg);
      color: var(--color-text);
      font-family: 'Google Sans', 'Noto Sans JP', Arial, sans-serif;
      min-height: 100vh;
    }

    .portal-wrap {
      max-width: 1200px;
      margin: 0 auto;
      padding: 14px 18px 40px;
    }

    /* トップバー */
    .topbar {
      position: sticky; top: 0; z-index: 20;
      display: flex; align-items: center; justify-content: space-between;
      gap: 10px; padding: 10px 6px;
      margin-bottom: 14px;
      background: transparent;
    }
    /* スクロール時のみうっすら境界を出す（トップ位置では無し） */
    .topbar.scrolled {
      backdrop-filter: blur(18px) saturate(1.2);
      -webkit-backdrop-filter: blur(18px) saturate(1.2);
      background: color-mix(in srgb, var(--color-bg) 40%, transparent);
    }
    .brand { display: flex; align-items: center; gap: 12px; }
    .logo {
      width: 44px; height: 44px;
      border-radius: 16px;
      background: conic-gradient(from 210deg, #1a73e8, #34a853, #fbbc04, #ea4335, #1a73e8);
      padding: 2px;
      box-shadow: var(--shadow-1);
      display: grid; place-items: center;
    }
    .logo svg {
      width: 100%; height: 100%;
      background: var(--color-surface);
      border-radius: 14px;
      padding: 9px;
      color: var(--color-primary);
    }
    .brand-text {
      display: flex; flex-direction: column; line-height: 1.2;
    }
    .brand-text strong { font-size: var(--text-base); font-weight: 700; color: var(--color-text); }
    .brand-text span { font-size: var(--text-xs); color: var(--color-text-muted); }

    .topbar-right { display: flex; align-items: center; gap: 8px; }

    .k-icon-btn {
      width: 44px !important; height: 44px !important;
      border-radius: 9999px !important;
      display: inline-flex !important; align-items: center !important; justify-content: center !important;
      background: var(--color-surface) !important;
      border: 1px solid var(--color-border) !important;
      box-shadow: var(--shadow-1) !important;
      color: var(--color-text) !important;
      padding: 0 !important;
      cursor: pointer;
      transition: transform var(--tr), box-shadow var(--tr);
      text-decoration: none;
    }
    .k-icon-btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-2) !important; }
    .k-icon-btn svg { width: 20px; height: 20px; }

    .k-pill-btn {
      height: 44px !important;
      border-radius: 9999px !important;
      padding: 0 18px !important;
      display: inline-flex !important; align-items: center !important; justify-content: center !important;
      background: var(--color-surface) !important;
      border: 1px solid var(--color-border) !important;
      box-shadow: var(--shadow-1) !important;
      color: var(--color-text) !important;
      font-size: var(--text-sm) !important;
      cursor: pointer;
      font-family: inherit;
      font-weight: 500;
      text-decoration: none;
      gap: 6px;
      transition: transform var(--tr), box-shadow var(--tr);
    }
    .k-pill-btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-2) !important; }

    .k-primary-btn {
      height: 44px !important;
      border-radius: 9999px !important;
      padding: 0 20px !important;
      display: inline-flex !important; align-items: center !important; justify-content: center !important;
      background: var(--color-primary) !important;
      border: none !important;
      color: #fff !important;
      font-size: var(--text-sm) !important;
      font-weight: 500 !important;
      box-shadow: var(--shadow-2) !important;
      cursor: pointer;
      font-family: inherit;
      text-decoration: none;
      gap: 6px;
      transition: transform var(--tr), filter var(--tr);
    }
    .k-primary-btn:hover { transform: translateY(-1px); filter: brightness(1.05); }

    /* ヒーロー */
    .hero {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 14px;
      margin-bottom: 14px;
    }
    .hero-card {
      position: relative; overflow: hidden;
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: 32px;
      padding: clamp(1.25rem, 2.6vw, 2rem);
      box-shadow: var(--shadow-1);
    }
    .hero-card::after {
      content: '';
      position: absolute; right: -60px; bottom: -80px;
      width: 300px; height: 300px;
      background: radial-gradient(circle, rgba(26,115,232,.18), transparent 70%);
      pointer-events: none;
    }
    .hello-badge {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 4px 12px;
      background: var(--color-primary-soft);
      color: var(--color-primary);
      border-radius: 9999px;
      font-size: var(--text-xs);
      font-weight: 500;
      margin-bottom: 14px;
    }
    .hero-card h1 {
      font-size: var(--text-xl);
      font-weight: 700;
      line-height: 1.35;
      color: var(--color-text);
      margin: 0 0 10px;
    }
    .hero-lead {
      font-size: var(--text-sm);
      color: var(--color-text-muted);
      margin-bottom: 18px;
      line-height: 1.6;
    }
    .search-bar {
      display: flex; align-items: center; gap: 10px;
      height: 44px;
      padding: 0 18px;
      background: var(--color-surface-2);
      border: 1px solid var(--color-border);
      border-radius: 9999px !important;
      margin-bottom: 14px;
    }
    .search-bar input {
      flex: 1; border: none; background: none; outline: none;
      font-size: var(--text-sm); font-family: inherit;
      color: var(--color-text);
    }
    .search-bar svg { width: 18px; height: 18px; color: var(--color-text-muted); }
    .hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }

    .summary-col { display: flex; flex-direction: column; gap: 10px; }
    .summary-card {
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: 20px;
      padding: 14px 18px;
      box-shadow: var(--shadow-1);
      display: flex; align-items: center; gap: 14px;
    }
    .summary-icon {
      width: 44px; height: 44px; border-radius: 14px;
      display: grid; place-items: center;
      background: var(--color-primary-soft);
      color: var(--color-primary);
      flex-shrink: 0;
    }
    .summary-icon.green { background: rgba(24,128,56,.10); color: var(--color-green); }
    .summary-icon.amber { background: rgba(242,153,0,.12); color: #b06000; }
    .summary-icon svg { width: 22px; height: 22px; }
    .summary-text { display: flex; flex-direction: column; line-height: 1.3; }
    .summary-label { font-size: var(--text-xs); color: var(--color-text-muted); }
    .summary-value { font-size: var(--text-lg); font-weight: 700; color: var(--color-text); }

    /* メニューパネル */
    .panel {
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: 28px;
      padding: 20px;
      box-shadow: var(--shadow-1);
      margin-bottom: 14px;
    }
    .panel-head {
      display: flex; align-items: center; justify-content: space-between;
      margin-bottom: 12px;
    }
    .panel-title {
      font-size: var(--text-lg); font-weight: 700; color: var(--color-text);
    }
    .section-label {
      font-size: var(--text-xs);
      color: var(--color-text-faint);
      font-weight: 700;
      letter-spacing: .08em;
      margin: 18px 0 10px;
      text-transform: uppercase;
    }
    .section-label:first-child { margin-top: 0; }

    .apps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }

    .app-tile {
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: 24px;
      padding: 16px 18px;
      display: flex; flex-direction: column; gap: 14px;
      box-shadow: var(--shadow-1);
      text-decoration: none;
      color: inherit;
      transition: transform var(--tr), box-shadow var(--tr), border-color var(--tr);
    }
    .app-tile:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-2);
      border-color: color-mix(in srgb, var(--color-primary) 28%, var(--color-border));
    }
    .app-top { display: flex; align-items: flex-start; justify-content: space-between; }
    .app-icon {
      width: 44px; height: 44px; border-radius: 14px;
      display: grid; place-items: center;
      background: var(--color-primary-soft);
      color: var(--color-primary);
    }
    .app-icon.green { background: rgba(24,128,56,.10); color: var(--color-green); }
    .app-icon.amber { background: rgba(242,153,0,.12); color: #b06000; }
    .app-icon svg { width: 22px; height: 22px; }
    .mini-badge {
      font-size: var(--text-xs);
      padding: 3px 10px;
      border-radius: 9999px;
      background: var(--color-primary-soft);
      color: var(--color-primary);
      font-weight: 500;
    }
    .mini-badge.green { background: rgba(24,128,56,.10); color: var(--color-green); }
    .mini-badge.amber { background: rgba(242,153,0,.12); color: #b06000; }

    .app-bottom .app-title {
      font-size: var(--text-lg);
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 4px;
    }
    .app-desc {
      font-size: var(--text-xs);
      color: var(--color-text-muted);
      line-height: 1.5;
    }

    /* 下部2カラム */
    .content-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 14px;
    }
    .task-list { display: flex; flex-direction: column; gap: 8px; }
    .task-row {
      display: flex; align-items: center; gap: 12px;
      padding: 12px 14px;
      background: var(--color-surface-2);
      border-radius: 16px;
      border: 1px solid var(--color-border);
    }
    .status-dot {
      width: 10px; height: 10px; border-radius: 50%;
      background: var(--color-green); flex-shrink: 0;
    }
    .status-dot.alert { background: #ea4335; }
    .status-dot.warn  { background: var(--color-amber); }
    .task-body { flex: 1; line-height: 1.4; }
    .task-title { font-size: var(--text-sm); color: var(--color-text); font-weight: 500; }
    .task-meta  { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: 2px; }

    .info-list { display: flex; flex-direction: column; gap: 10px; }
    .info-row {
      display: flex; justify-content: space-between; align-items: center;
      padding: 10px 14px;
      background: var(--color-surface-2);
      border-radius: 12px;
      font-size: var(--text-sm);
    }
    .info-label { color: var(--color-text-muted); }
    .info-value { color: var(--color-text); font-weight: 500; }

    .portal-footer {
      text-align: center; padding: 24px 0 8px;
      color: var(--color-text-faint);
      font-size: var(--text-xs);
    }

    @media (max-width: 1000px) {
      .hero, .content-grid { grid-template-columns: 1fr; }
      .apps-grid { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 700px) {
      .apps-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 600px) {
      .brand-text span { display: none; }
      .apps-grid { grid-template-columns: repeat(2, 1fr); }
      .portal-wrap { padding: 10px 12px 30px; }
      .k-pill-btn { padding: 0 14px !important; }
    }