/* ============================================================
 * 三步引导 / NPS（2026-10-02）
 * 主色 #FF2442；动效只用 transform & opacity；尊重 prefers-reduced-motion
 * ============================================================ */
.ob-mask {
  position: fixed; inset: 0; z-index: var(--z-top, 99990);
  background: rgba(28, 18, 22, .5);
  display: flex; align-items: center; justify-content: center; padding: 18px;
  opacity: 0;
  pointer-events: none; transition: opacity .22s ease;
}
.ob-mask.on { opacity: 1; pointer-events: auto; }

.ob-card {
  width: 100%; max-width: 460px; max-height: 86vh; overflow: auto;
  background: var(--bg-surface, #fff); border-radius: 18px; padding: 22px 22px 18px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, .22);
  transform: translateY(14px) scale(.98); opacity: 0;
  transition: transform .28s var(--ease-spring, cubic-bezier(.34,1.56,.64,1)), opacity .22s ease;
}
.ob-mask.on .ob-card { transform: none; opacity: 1; }

.ob-steps { display: flex; gap: 6px; margin-bottom: 14px; }
.ob-steps i {
  height: 4px; flex: 1; border-radius: 999px; background: var(--line, #ececec);
  transform: scaleX(.4); transform-origin: left center; opacity: .6;
  transition: transform .3s var(--ease-out, cubic-bezier(.22,.61,.36,1)), opacity .3s, background .3s;
}
.ob-steps i.on { background: var(--xhs-red, #ff2442); transform: scaleX(1); opacity: 1; }

.ob-title { display: block; font-size: 17px; font-weight: 800; color: var(--ink, #1f1f1f); }
.ob-sub { font-size: 12.5px; color: var(--ink3, #6E6869); margin: 5px 0 14px; line-height: 1.6; }

.ob-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.ob-opt {
  border: 1.5px solid var(--border-subtle, #f3d0d7); border-radius: 12px; padding: 9px 11px;
  background: var(--bg-surface, #fff); text-align: left; cursor: pointer;
  transition: transform .18s var(--ease-out, cubic-bezier(.22,.61,.36,1)), border-color .18s, background .18s;
}
.ob-opt b { display: block; font-size: 13.5px; color: var(--ink, #1f1f1f); }
.ob-opt span { display: block; font-size: 12px; color: var(--ink3, #6E6869); margin-top: 2px; }
.ob-opt:hover { transform: translateY(-2px); }
.ob-opt:active { transform: scale(.98); }
.ob-opt.on { border-color: var(--xhs-red, #ff2442); background: var(--bg-subtle, #fff5f6); }

.ob-list { display: flex; flex-direction: column; gap: 8px; }
.ob-row {
  border: 1.5px solid var(--border-subtle, #f3d0d7); border-radius: 12px; padding: 10px 12px;
  background: var(--bg-surface, #fff); text-align: left; cursor: pointer;
  transition: transform .18s var(--ease-out, cubic-bezier(.22,.61,.36,1)), border-color .18s, background .18s;
}
.ob-row b { display: block; font-size: 13.5px; color: var(--ink, #1f1f1f); }
.ob-row span { display: block; font-size: 12px; color: var(--ink3, #6E6869); margin-top: 2px; }
.ob-row:hover { transform: translateY(-2px); }
.ob-row:active { transform: scale(.99); }
.ob-row.on { border-color: var(--xhs-red, #ff2442); background: var(--bg-subtle, #fff5f6); }

.ob-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.ob-skip { font-size: 12px; color: var(--ink3, #6E6869); text-decoration: underline; }
.ob-nav { display: flex; gap: 8px; margin-left: auto; }
.ob-back, .ob-next {
  border-radius: 10px; padding: 8px 16px; font-size: 13px;
  transition: transform .18s var(--ease-out, cubic-bezier(.22,.61,.36,1)), background .18s;
}
.ob-back { background: var(--bg-hover, #f6f6f6); color: var(--ink2, #4b4b4b); }
.ob-next { background: var(--xhs-red-solid, #E01230); color: #fff; font-weight: 600; }
.ob-back:active, .ob-next:active { transform: scale(.96); }
.ob-next[disabled] { background: var(--line, #ececec); color: var(--ink3, #6E6869); cursor: not-allowed; }

/* ---------- NPS ---------- */
.ob-nps {
  margin-top: 14px; padding: 12px 14px; border-radius: 12px;
  background: var(--bg-subtle, #fffafb); border: 1px solid var(--border-subtle, #f3d0d7);
}
.ob-nps-t { font-size: 12.5px; color: var(--ink2, #4b4b4b); line-height: 1.6; }
.ob-nps-scores { display: flex; gap: 4px; flex-wrap: wrap; margin: 8px 0; }
.ob-nps-b {
  min-width: 30px; height: 30px; border-radius: 8px; font-size: 12px;
  background: var(--bg-surface, #fff); border: 1px solid var(--line, #ececec); color: var(--ink2, #4b4b4b);
  transition: transform .16s var(--ease-out, cubic-bezier(.22,.61,.36,1)), background .16s, color .16s;
}
.ob-nps-b:hover { background: var(--xhs-red-solid, #E01230); color: #fff; transform: translateY(-2px); }
.ob-nps-b:active { transform: scale(.92); }
.ob-nps-why {
  width: 100%; box-sizing: border-box; padding: 7px 10px; font-size: 12.5px;
  border: 1px solid var(--line, #ececec); border-radius: 9px; background: var(--bg-surface, #fff); color: var(--ink, #1f1f1f);
}
.ob-nps-msg { font-size: 12px; color: var(--xhs-red-text, #D81B37); margin-top: 6px; min-height: 16px; }

@media (max-width: 480px) {
  .ob-grid { grid-template-columns: 1fr; }
  .ob-card { padding: 18px 16px 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .ob-mask, .ob-card, .ob-steps i, .ob-opt, .ob-row, .ob-back, .ob-next, .ob-nps-b { transition: none !important; }
  .ob-card { transform: none !important; opacity: 1 !important; }
  .ob-mask { opacity: 1 !important; }
  .ob-steps i { transform: scaleX(1) !important; }
  .ob-opt:hover, .ob-row:hover, .ob-nps-b:hover { transform: none !important; }
  .ob-opt:active, .ob-row:active, .ob-back:active, .ob-next:active, .ob-nps-b:active { transform: none !important; }
}
html.ss-reduced-motion .ob-mask,
html.ss-reduced-motion .ob-card,
html.ss-reduced-motion .ob-steps i,
html.ss-reduced-motion .ob-opt,
html.ss-reduced-motion .ob-row,
html.ss-reduced-motion .ob-nps-b { transition: none !important; }
html.ss-reduced-motion .ob-card { transform: none !important; opacity: 1 !important; }