:root {
  /* Huawei Mate 60 竖屏基准：1216 × 2688，逻辑宽约 390px */
  --mate60-px-w: 1216;
  --mate60-px-h: 2688;
  --mate60-width: 390px;
  --mate60-height: 861px;
  --mate60-aspect: 1216 / 2688;

  --bg-page: #e8ecf2;
  --bg-surface: #e8ecf2;
  --bg-muted: #eef1f6;
  --text: #1a1a1a;
  --text-muted: #666666;
  --border: #d9d9d9;
  --border-strong: #999999;
  --primary: #1677ff;
  --primary-hover: #4096ff;
  --outline-bg: #ffffff;
  --font-body: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --page-max: var(--mate60-width);
  --radius: 6px;
  /* 顶行校验：左右二维码贴边，中间条码等高紧贴 */
  --verify-qr-size: clamp(4.75rem, 20vw, 6.25rem);
  --verify-bar-h: var(--verify-qr-size);
  --barcode-w: var(--verify-qr-size);
  --task-icon-size: clamp(2.35rem, 6.8vw, 2.65rem);
  --upload-slot-w: 3.5rem;
  --action-col-w: 2.5rem;
  --task-action-h: clamp(2.25rem, 6vw, 2.55rem);
  --task-desc-w: clamp(5.5rem, 22vw, 7.25rem);
  --task-reward-w: 3rem;
  --task-stripe-w: 2px;
  --font-mono: ui-monospace, 'Cascadia Code', 'SF Mono', Consolas, monospace;
  --shell-pad-x: clamp(0.85rem, 3.8vw, 1.1rem);
  --hero-magazine-size: 0.84rem;
  --hero-magazine-lh: 1.55;
  --hero-magazine-lines: 5;

  /* 任务区分段操作条 */
  --task-btn-radius: 4px;
  --task-btn-secondary-bg: #f6f7f9;
  --task-btn-secondary-border: #d8dde5;
  --task-btn-secondary-text: #3d4654;
  --task-btn-primary-bg: #1c2430;
  --task-btn-primary-text: #f4f6f8;
  --task-btn-primary-border: #1c2430;
  --task-btn-current-bg: #1c2430;
  --task-btn-current-text: #ffffff;
  --task-btn-done-bg: #eef8f1;
  --task-btn-done-text: #1a6b3c;
  --task-btn-review-bg: #eef0f3;
  --task-btn-review-text: #4a5563;
  --task-btn-reupload-bg: #fff5ef;
  --task-btn-reupload-text: #9a3412;
  --task-btn-reward-bg: #eef4ff;
  --task-btn-reward-border: #c8dcff;
  --task-btn-reward-text: #1565e0;
}