:root {
    --red: #c0392b;
    --red-light: #e74c3c;
    --ink: #2c2c2c;
    --muted: #888;
    --bg: #fafaf8;
    --surface: #fff;
    --border: #e0d5c1;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
    --radius: 8px;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }

  body {
    font-family: "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: #f0ede8;
    color: var(--ink);
    min-height: 100vh;
  }

  /* ===== Header ===== */
  .header {
    position: relative;
    background: var(--red);
    color: #fff;
    padding: 16px 24px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(192,57,43,0.25);
  }

  .header-actions {
    position: absolute;
    top: 12px;
    right: 20px;
    display: flex;
    gap: 10px;
    align-items: center;
  }
  .header-github {
    color: #fff;
    opacity: 0.85;
    display: flex;
    align-items: center;
    transition: opacity 0.2s;
  }
  .header-github:hover {
    opacity: 1;
  }
  .lang-switcher {
    background: rgba(255,255,255,0.2);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.4);
    border-radius: 14px;
    padding: 3px 12px;
    font-size: 12px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
  }
  .lang-switcher:hover {
    background: rgba(255,255,255,0.35);
  }
  .header h1 {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 2px;
  }
  .header p {
    font-size: 12px;
    opacity: 0.85;
    margin-top: 2px;
  }

  /* ===== Container ===== */
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
  }

  /* ===== Settings Panel ===== */
  .settings {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 20px 24px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
  }
  .settings h2 {
    font-size: 15px;
    color: var(--red);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .settings h2::before {
    content: "⚙";
    font-size: 16px;
  }

  .setting-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 12px;
  }
  .setting-row:last-child { margin-bottom: 0; }

  .setting-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    min-width: 70px;
    white-space: nowrap;
  }

  .btn-group {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
  }
  .btn-opt {
    padding: 6px 16px;
    border: 1.5px solid var(--border);
    border-radius: 20px;
    background: var(--surface);
    cursor: pointer;
    font-size: 13px;
    color: var(--ink);
    transition: all 0.2s;
    font-family: inherit;
    white-space: nowrap;
  }
  .btn-opt:hover { border-color: var(--red); color: var(--red); }
  .btn-opt.active {
    background: var(--red);
    color: #fff;
    border-color: var(--red);
  }

  .btn-primary {
    padding: 10px 28px;
    background: var(--red);
    color: #fff;
    border: none;
    border-radius: 24px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    letter-spacing: 1px;
    transition: all 0.2s;
    box-shadow: 0 3px 10px rgba(192,57,43,0.3);
  }
  .btn-primary:hover {
    background: var(--red-light);
    transform: translateY(-1px);
    box-shadow: 0 5px 16px rgba(192,57,43,0.4);
  }
  .btn-primary:active { transform: translateY(0); }

  .btn-secondary {
    padding: 9px 20px;
    background: var(--surface);
    color: var(--red);
    border: 1.5px solid var(--red);
    border-radius: 24px;
    font-size: 13px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
  }
  .btn-secondary:hover {
    background: var(--red);
    color: #fff;
  }

  .btn-outline {
    padding: 9px 20px;
    background: var(--surface);
    color: var(--ink);
    border: 1.5px solid var(--border);
    border-radius: 24px;
    font-size: 13px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
  }
  .btn-outline:hover {
    border-color: var(--red);
    color: var(--red);
  }

  .btn-sm {
    padding: 5px 12px;
    font-size: 12px;
    border-radius: 16px;
  }

  .category-section { margin-top: 12px; }
  .category-toggle { cursor: pointer; font-size: 13px; font-weight: 600; color: var(--ink); padding: 6px 0; }
  .category-toggle:hover { color: var(--red); }
  .category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 4px; margin-top: 8px; }
  .category-grid label { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink); cursor: pointer; }
  .category-grid label input { cursor: pointer; accent-color: var(--red); }
  .category-grid label .cat-count { color: var(--muted); font-size: 11px; }
  .category-actions { display: flex; gap: 8px; margin-top: 8px; }

  /* ===== Stats Bar ===== */
  .stats-bar {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    padding: 10px 16px;
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 16px;
    font-size: 12px;
    color: var(--muted);
    align-items: center;
  }
  .stats-bar strong {
    color: var(--red);
    font-size: 14px;
  }
  .stat-divider {
    width: 1px;
    height: 16px;
    background: var(--border);
  }

  /* ===== Actions Bar ===== */
  .actions-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 16px;
    align-items: center;
  }

  /* ===== Preview Area ===== */
  .preview-area {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
  }

  .preview-tabs {
    display: flex;
    gap: 6px;
    margin-bottom: 16px;
    flex-wrap: wrap;
  }
  .preview-tab {
    padding: 7px 16px;
    border: 1.5px solid var(--border);
    border-radius: 20px;
    cursor: pointer;
    font-size: 13px;
    background: var(--surface);
    color: var(--ink);
    transition: all 0.2s;
    font-family: inherit;
  }
  .preview-tab:hover { border-color: var(--red); }
  .preview-tab.active {
    background: var(--red);
    color: #fff;
    border-color: var(--red);
  }
  .preview-tab.host-tab {
    border-color: #e67e22;
    color: #e67e22;
  }
  .preview-tab.host-tab.active {
    background: #e67e22;
    color: #fff;
    border-color: #e67e22;
  }

  .preview-content {
    min-height: 200px;
  }

  /* ===== Card Preview (screen) ===== */
  .card-preview {
    border: 2px dashed var(--red);
    border-radius: 6px;
    padding: 14px 16px;
    background: #fffef9;
    max-width: 560px;
    margin: 0 auto;
  }
  .card-preview.style-simple {
    border: 2px solid #333;
    border-radius: 2px;
    background: #fff;
  }

  .card-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border);
  }
  .card-preview-header .title {
    font-size: 14px;
    font-weight: 700;
    color: var(--red);
  }
  .card-preview.style-simple .card-preview-header .title {
    color: #333;
  }
  .card-preview-header .badge {
    font-size: 10px;
    color: var(--muted);
  }

  .card-preview-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2px 8px;
  }
  .card-preview-item {
    display: flex;
    align-items: center;
    gap: 2px;
    font-size: 11px;
    line-height: 1.7;
    padding: 1px 0;
  }
  .card-preview-item .num {
    color: var(--red);
    font-weight: 600;
    font-size: 10px;
    min-width: 18px;
    text-align: right;
    flex-shrink: 0;
  }
  .card-preview.style-simple .card-preview-item .num {
    color: #555;
  }
  .card-preview-item .word {
    white-space: nowrap;
  }

  /* Host card highlights */
  .card-preview.host-card .card-preview-item.diff .word {
    color: var(--red);
    font-weight: 700;
    background: #fff0f0;
    padding: 0 3px;
    border-radius: 3px;
  }
  .card-preview.host-card .card-preview-item.diff .num {
    color: var(--red);
  }

  /* Host card: single card with base+variant */
  .card-preview.host-single .host-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 3px 8px;
  }
  .card-preview.host-single .host-item {
    display: flex;
    flex-direction: column;
    font-size: 11px;
    line-height: 1.5;
    padding: 2px 0;
  }
  .card-preview.host-single .host-item .host-base {
    display: flex;
    align-items: center;
    gap: 2px;
  }
  .card-preview.host-single .host-item .host-base .num {
    color: var(--red);
    font-weight: 600;
    font-size: 10px;
    min-width: 18px;
    text-align: right;
    flex-shrink: 0;
  }
  .card-preview.host-single .host-item .host-base .word {
    color: var(--ink);
  }
  .card-preview.host-single .host-item .host-variant {
    font-size: 10px;
    color: var(--red);
    padding-left: 20px;
    font-weight: 600;
  }
  .card-preview.host-single.style-simple .host-item .host-base .num { color: #555; }
  .card-preview.host-single.style-simple .host-item .host-variant { color: #e74c3c; }

  /* ===== Empty State ===== */
  .empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--muted);
  }
  .empty-state .icon {
    font-size: 48px;
    margin-bottom: 12px;
  }
  .empty-state p {
    font-size: 14px;
    line-height: 1.8;
  }

  /* ===== All Cards Grid (screen) ===== */
  .cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
  }

  /* ===== Import Modal ===== */
  .modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 20px;
  }
  .modal-overlay.show { display: flex; }

  .modal {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 24px;
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
  }
  .modal h3 {
    font-size: 16px;
    color: var(--red);
    margin-bottom: 12px;
  }
  .modal textarea {
    width: 100%;
    height: 200px;
    border: 1.5px solid var(--border);
    border-radius: 6px;
    padding: 12px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 12px;
    resize: vertical;
    line-height: 1.6;
  }
  .modal .hint {
    font-size: 11px;
    color: var(--muted);
    margin: 8px 0 16px;
    line-height: 1.6;
  }
  .modal .hint code {
    background: #f5f0e8;
    padding: 1px 6px;
    border-radius: 3px;
    font-size: 11px;
  }
  .modal-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
  }
  .modal .status-msg {
    font-size: 12px;
    margin-top: 8px;
    min-height: 18px;
  }
  .modal .status-msg.success { color: #27ae60; }
  .modal .status-msg.error { color: var(--red); }

  /* ===== Edit Modal ===== */
  .edit-modal {
    max-width: 800px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
  }
  .edit-toolbar {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 12px;
    flex-wrap: wrap;
  }
  .edit-search {
    flex: 1;
    min-width: 180px;
    padding: 7px 12px;
    border: 1.5px solid var(--border);
    border-radius: 20px;
    font-size: 13px;
    font-family: inherit;
    outline: none;
  }
  .edit-search:focus { border-color: var(--red); }
  .edit-count {
    font-size: 12px;
    color: var(--muted);
    white-space: nowrap;
  }
  .edit-table-wrap {
    flex: 1;
    overflow-y: auto;
    max-height: 50vh;
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-bottom: 12px;
  }
  .edit-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
  }
  .edit-table thead {
    position: sticky;
    top: 0;
    z-index: 1;
  }
  .edit-table th {
    background: #f5f0e8;
    padding: 8px 12px;
    text-align: left;
    font-weight: 600;
    color: var(--ink);
    border-bottom: 2px solid var(--border);
    font-size: 12px;
  }
  .edit-table td {
    padding: 6px 12px;
    border-bottom: 1px solid #f0ebe0;
    vertical-align: middle;
  }
  .edit-table tr:hover td { background: #fffdf8; }
  .edit-table .td-num {
    width: 40px;
    color: var(--muted);
    font-size: 11px;
    text-align: center;
  }
  .edit-table .td-base {
    font-weight: 600;
    color: var(--ink);
  }
  .edit-table .td-variants {
    color: var(--muted);
    font-size: 12px;
  }
  .edit-table .td-actions {
    width: 80px;
    white-space: nowrap;
    text-align: center;
  }
  .edit-table .td-cat {
    font-size: 11px;
    color: var(--muted);
    white-space: nowrap;
  }
  .edit-table .btn-icon {
    display: inline-block;
    padding: 4px 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    background: var(--surface);
    margin: 0 2px;
    transition: all 0.15s;
  }
  .edit-table .btn-icon:hover { border-color: var(--red); color: var(--red); }
  .edit-table .btn-icon.del:hover { border-color: var(--red); color: var(--red); background: #fff0f0; }
  .edit-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .edit-row-modal {
    max-width: 450px;
  }
  .edit-row-form label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 4px;
    margin-top: 12px;
  }
  .edit-row-form label:first-child { margin-top: 0; }
  .edit-row-form input {
    width: 100%;
    padding: 8px 12px;
    border: 1.5px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    outline: none;
  }
  .edit-row-form input:focus { border-color: var(--red); }

  /* ===== Footer ===== */
  .footer {
    text-align: center;
    padding: 20px;
    font-size: 11px;
    color: var(--muted);
  }

  /* ===== Print Styles ===== */
  @media print {
    body { background: #fff; }
    .header, .settings, .stats-bar, .actions-bar, .preview-tabs, .footer { display: none !important; }
    .preview-area {
      box-shadow: none;
      padding: 0;
      background: #fff;
    }
    .card-preview {
      border: 1.5px dashed #999;
      background: #fff;
      page-break-inside: avoid;
      margin-bottom: 4mm;
      break-inside: avoid;
    }
    .card-preview.host-single .host-variant {
      color: #c0392b;
      font-weight: 700;
    }
    .cards-grid {
      display: block;
    }
  }

  /* ===== Responsive ===== */
  @media (max-width: 768px) {
    .container { padding: 10px; }
    .settings { padding: 14px 16px; }
    .setting-row { gap: 6px; }
    .btn-opt { padding: 5px 12px; font-size: 12px; }
    .cards-grid {
      grid-template-columns: 1fr;
    }
    .card-preview { max-width: 100%; }
    .card-preview-grid { gap: 1px 4px; }
    .card-preview-item { font-size: 10px; }
  }