/* ── 商品库：管理页 + 弹窗表单 ─────────── */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
      gap: 10px;
      margin-top: 6px;
    }
    .product-card {
      display: flex;
      flex-direction: column;
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: 10px;
      overflow: hidden;
      transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
    }
    .product-card:hover {
      border-color: var(--border-strong);
      transform: translateY(-1px);
      box-shadow: var(--shadow-sm);
    }
    .pc-hero {
      position: relative;
      aspect-ratio: 4 / 3;
      background: var(--bg-soft);
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--fg-muted);
      font-size: var(--fs-12);
    }
    .pc-hero img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }
    .pc-hero-count {
      position: absolute;
      right: 6px;
      bottom: 6px;
      padding: 2px 6px;
      border-radius: 999px;
      background: rgba(0,0,0,0.55);
      color: #fff;
      font-size: var(--fs-10);
      font-weight: 600;
      letter-spacing: 0.3px;
    }
    .pc-body {
      padding: 8px 10px;
      display: flex;
      flex-direction: column;
      gap: 4px;
      flex: 1;
      min-width: 0;
    }
    .pc-name {
      font-size: var(--fs-13);
      font-weight: 600;
      color: var(--fg);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .pc-price-line {
      display: flex;
      align-items: center;
      gap: 6px;
      flex-wrap: wrap;
    }
    .pc-price {
      font-size: var(--fs-13);
      font-weight: 700;
      color: #dc2626;
    }
    [data-theme="dark"] .pc-price { color: #f87171; }
    .pc-campaign {
      font-size: var(--fs-11);
      color: var(--fg);
      background: var(--accent-soft, var(--bg-soft));
      border: 1px solid var(--border);
      padding: 1px 6px;
      border-radius: 999px;
    }
    .pc-points {
      margin: 2px 0 0;
      padding: 0;
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 2px;
    }
    .pc-points li {
      font-size: var(--fs-11);
      color: var(--fg-dim);
      padding-left: 14px;
      position: relative;
      line-height: 1.55;
      overflow: hidden;
      text-overflow: ellipsis;
      display: -webkit-box;
      -webkit-line-clamp: 1;
      -webkit-box-orient: vertical;
    }
    .pc-points li::before {
      content: "·";
      position: absolute;
      left: 4px;
      top: -1px;
      color: var(--fg-muted);
      font-weight: 700;
    }
    .pc-points .pc-points-more {
      font-size: var(--fs-11);
      color: var(--fg-muted);
      padding-left: 12px;
    }
    .pc-empty {
      grid-column: 1 / -1;
      padding: 40px 10px;
      text-align: center;
      color: var(--fg-muted);
      font-size: var(--fs-14);
      border: 1px dashed var(--border);
      border-radius: 12px;
      background: var(--panel);
    }
    .pc-actions {
      display: flex;
      gap: 5px;
      padding: 0 8px 8px;
    }
    .pc-actions button {
      flex: 1;
      height: 36px;
      padding: 0;
      border-radius: 6px;
      border: 1px solid var(--border);
      background: var(--bg);
      color: var(--fg);
      cursor: pointer;
      transition: background 0.15s, border-color 0.15s, color 0.15s;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .pc-actions button:hover {
      background: var(--bg-soft);
      border-color: var(--border-strong);
    }
    .pc-actions button svg {
      width: 16px;
      height: 16px;
      stroke: currentColor;
      fill: none;
      stroke-width: 1.8;
      stroke-linecap: round;
      stroke-linejoin: round;
      display: block;
    }
    .pc-actions button.primary {
      background: var(--fg);
      color: var(--bg);
      border-color: var(--fg);
    }
    .pc-actions button.primary:hover {
      opacity: 0.9;
    }
    .pc-actions button.danger {
      color: #dc2626;
    }
    [data-theme="dark"] .pc-actions button.danger {
      color: #f87171;
    }
    .pc-actions button.danger:hover {
      background: color-mix(in srgb, #dc2626 12%, transparent);
      border-color: color-mix(in srgb, #dc2626 40%, var(--border));
    }
    [data-theme="dark"] .pc-actions button.danger:hover {
      background: color-mix(in srgb, #f87171 14%, transparent);
      border-color: color-mix(in srgb, #f87171 40%, var(--border));
      color: #fca5a5;
    }

    /* 商品弹窗（复用 modal-overlay，单表单，不需要左 tab） */
    .product-modal {
      max-width: 720px;
      height: min(720px, 90vh);
    }
    .product-form {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .product-form .pf-row {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .product-form .pf-row.horizontal {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    @media (max-width: 640px) {
      .product-form .pf-row.horizontal { grid-template-columns: 1fr; }
    }
    .product-form label {
      font-size: var(--fs-12);
      font-weight: 600;
      color: var(--fg-dim);
      text-transform: uppercase;
      letter-spacing: 0.4px;
    }
    .product-form input[type="text"],
    .product-form textarea {
      width: 100%;
      padding: 9px 12px;
      font: inherit;
      font-size: var(--fs-14);
      color: var(--fg);
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 9px;
      outline: none;
      transition: border-color 0.15s, box-shadow 0.15s;
      resize: vertical;
    }
    .product-form input[type="text"]:focus,
    .product-form textarea:focus {
      border-color: var(--fg);
      box-shadow: 0 0 0 3px color-mix(in srgb, var(--fg) 12%, transparent);
    }
    .product-form .pf-hint {
      font-size: var(--fs-12);
      color: var(--fg-muted);
      font-weight: 400;
      text-transform: none;
      letter-spacing: normal;
    }

    /* 效果图编辑网格 */
    .pf-images {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
      gap: 10px;
    }
    .pf-image-cell {
      position: relative;
      aspect-ratio: 1 / 1;
      border: 1px solid var(--border);
      border-radius: 10px;
      overflow: hidden;
      background: var(--bg-soft);
    }
    .pf-image-cell img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }
    .pf-image-cell .pf-img-remove {
      position: absolute;
      top: 4px;
      right: 4px;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      border: none;
      background: rgba(0,0,0,0.7);
      color: #fff;
      cursor: pointer;
      font-size: var(--fs-14);
      line-height: 1;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .pf-image-cell .pf-img-remove:hover { background: rgba(220,38,38,0.9); }
    .pf-add-image {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      aspect-ratio: 1 / 1;
      border: 1.5px dashed var(--border-strong);
      border-radius: 10px;
      background: var(--panel);
      color: var(--fg-dim);
      font-size: var(--fs-12);
      cursor: pointer;
      gap: 4px;
      text-align: center;
      padding: 6px;
    }
    .pf-add-image:hover {
      background: var(--bg-soft);
      color: var(--fg);
    }
    .pf-add-image .pf-plus { font-size: var(--fs-20); line-height: 1; font-weight: 300; }

    .modal-foot {
      padding: 12px 22px;
      border-top: 1px solid var(--divider);
      display: flex;
      gap: 10px;
      justify-content: flex-end;
      align-items: center;
      flex-shrink: 0;
    }
    .modal-foot .mf-hint {
      flex: 1;
      font-size: var(--fs-12);
      color: var(--fg-muted);
      text-align: left;
    }
    .modal-foot button {
      padding: 8px 16px;
      font: inherit;
      font-size: var(--fs-14);
      border-radius: 9px;
      border: 1px solid var(--border);
      background: var(--panel);
      color: var(--fg);
      cursor: pointer;
      transition: background 0.15s, border-color 0.15s;
    }
    .modal-foot button:hover {
      background: var(--bg-soft);
      border-color: var(--border-strong);
    }
    .modal-foot button.primary {
      background: var(--fg);
      color: var(--bg);
      border-color: var(--fg);
      font-weight: 600;
    }
    .modal-foot button.primary:hover {
      opacity: 0.9;
    }
    .modal-foot button:disabled {
      opacity: 0.55;
      cursor: not-allowed;
    }

    @media (max-width: 720px) {
      .products-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; }
      .product-modal { height: calc(100vh - 30px); }
      .pc-body { padding: 6px 8px; }
      .pc-actions { padding: 0 6px 6px; gap: 4px; }
      .pc-actions button { padding: 4px 4px; font-size: var(--fs-11); }
    }