/* ==========================================================================
   candidate.css — KIMI redesign-v2 PC 商品详情（完整替换 product-detail-workspace.css）
   依据 CONTRACT.md 与 reference.html 1:1 复刻；仅使用真实 DOM selector。
   真实 DOM（product-detail-workspace.js 挂载后）：
   dialog.product-detail-dialog.mall-product-workspace-dialog.mall-product-sup > div > header
   #productDetailContent.mall-product-workspace
   ├─ .mpw-media   (ribbon? / image-frame>stage>img+status / caption[hidden] / thumbnails /
   │                card-name / card-pill? / summary? / card-foot(code?+mf-toggle-wrap+poster))
   ├─ .mpw-info    (heading / promo(stars>span×4, price(label,value,limit?,total?), comparison?(market,discount)) /
   │                fields / specifications / native-options /
   │                action(purchase(#productSaleAvailability, panel>label>stepper) + stock
   │                       + a.mpw-member-upgrade + .mpw-buy-group(.mpw-cart-button + #productPurchaseButton.primary-action))
   │                / bottom-row / status / copy-value)
   ├─ .mpw-sup-tabs
   ├─ .mpw-sup-overview
   ├─ .mpw-body-heading
   └─ [data-mall-product-content=true].mpw-body
   ========================================================================== */

/* ── 弹窗容器（窄屏回退态；≥721px 走整页版面） ── */
.mall-product-workspace-dialog {
  width: min(1120px, calc(100vw - 48px));
  max-width: calc(100vw - 24px);
  max-height: calc(100dvh - 40px);
  overflow: auto;
  overscroll-behavior: contain;
  color: #1f2329;
  background: #fff;
}
.mall-product-workspace-dialog > div { padding: 24px; gap: 18px; }
.mall-product-workspace-dialog > div > header { align-items: center; }
.mall-product-workspace-dialog > div > header .icon-button {
  display: inline-flex; align-items: center; justify-content: center; flex: 0 0 36px;
  width: 36px; height: 36px; min-width: 36px; padding: 0; border: 0; border-radius: 6px;
  background: transparent; color: #657182; font: inherit; font-size: 25px; line-height: 1; cursor: pointer;
}
.mall-product-workspace-dialog > div > header .icon-button:hover { background: #edf4ff; color: #1565cf; }
.mall-product-workspace-dialog > div > header .icon-button svg { width: 20px; height: 20px; }
.mall-product-workspace-dialog > div > header p { font-size: 13px; color: #596778; margin: 0; }
.mall-product-workspace-dialog > div > header h2 {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip-path: inset(50%); white-space: nowrap;
}

/* ── 设计变量（来自 reference.html :root） ── */
.mall-product-workspace {
  --mpw-blue: #2f7fe5; --mpw-blue-2: #1e9df2; --mpw-blue-deep: #2b5ce6;
  --mpw-blue-soft: #f0f7ff; --mpw-blue-border: #bfddfb;
  --mpw-ink: #1f2329; --mpw-ink-2: #646a73; --mpw-ink-3: #8f959e;
  --mpw-line: #eaeef5; --mpw-panel: #f7f9fc;
  --mpw-red: #f53f3f; --mpw-green: #00b42a; --mpw-orange: #ff7d00;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: start;
  max-height: none;
  overflow: visible;
  min-width: 0;
  color: var(--mpw-ink);
  font-size: 14px;
  line-height: 1.65;
}
.mall-product-workspace * { box-sizing: border-box; }
.mall-product-workspace > * { min-width: 0; grid-column: 1 / -1; }
.mall-product-workspace > .mo-product-cover { display: none; }
.mall-product-workspace [hidden] { display: none !important; }

/* 键盘可见焦点（tab 键） */
.mall-product-workspace :is(button, input, a, [role="tab"]):focus-visible,
.mall-product-workspace-dialog > div > header .icon-button:focus-visible {
  outline: 2px solid var(--mpw-blue); outline-offset: 2px;
}

/* ═══════════════ 左卡：商品媒体卡（无品牌头，只展示商品原图） ═══════════════ */
/* 所有宽度均为圆角白卡并 overflow:hidden，裁住斜角绶带，防止 root scrollWidth 被撑大 */
.mall-product-workspace .mpw-media {
  position: relative; min-width: 0; overflow: hidden;
  display: flex; flex-direction: column; gap: 10px;
  padding: 16px 18px 14px;
  background: #fff; border: 1px solid #edf1f7; border-radius: 20px;
  box-shadow: 0 10px 34px rgba(47, 127, 229, .10), 0 2px 6px rgba(31, 35, 41, .04);
}
/* 斜角绶带（真实文案才渲染）+ 扫光 */
.mall-product-workspace .mpw-ribbon {
  position: absolute; top: 20px; right: -40px; z-index: 3;
  transform: rotate(45deg); overflow: hidden;
  padding: 6px 46px;
  background: linear-gradient(90deg, var(--mpw-blue-2), var(--mpw-blue-deep));
  color: #fff; font-size: 12px; font-weight: 600; letter-spacing: 2px;
  box-shadow: 0 4px 10px rgba(43, 92, 230, .35);
}
.mall-product-workspace .mpw-ribbon::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -60%; width: 34%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .55), transparent);
  transform: skewX(-18deg);
  animation: mpwShineSweep 2.8s ease-in-out infinite;
}
/* 图片区：整张真实封面拉伸铺满，宽 100%，padding 0，3/2。 */
.mall-product-workspace .mpw-image-frame { position: relative; }
.mall-product-workspace .mpw-image-stage {
  display: grid; place-items: center; width: 100%; aspect-ratio: 3 / 2; padding: 0;
  border: 1px solid var(--mpw-line); border-radius: 14px;
  background: var(--mpw-panel); color: var(--mpw-ink-3);
  overflow: hidden; cursor: default;
}
.mall-product-workspace .mpw-image-stage[data-loading="true"] { cursor: progress; }
.mall-product-workspace .mpw-image-stage > img {
  /* Keep the whole authored image visible, per the requested automatic stretch. */
  display: block; width: 100%; height: 100%; min-height: 0; object-fit: fill;
}
/* 无图 / 加载失败可读态 */
.mall-product-workspace .mpw-image-status {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 12px; padding: 20px;
  background: var(--mpw-panel); border-radius: 14px;
  color: var(--mpw-ink-2); font-size: 13px; text-align: center; pointer-events: none;
}
.mall-product-workspace .mpw-image-status-icon { display: flex; color: #8b98a6; }
.mall-product-workspace .mpw-image-status-icon svg { width: 40px; height: 40px; }
/* caption 仅承载失败 retry，由 JS hidden 控制（正常态整行收起） */
.mall-product-workspace .mpw-image-caption { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
/* 缩略图（多图才显示） */
.mall-product-workspace .mpw-thumbnails { display: flex; gap: 10px; overflow-x: auto; padding: 2px 1px 8px; }
.mall-product-workspace .mpw-thumbnail {
  display: grid; place-items: center; flex: 0 0 64px; width: 64px; height: 64px;
  padding: 4px; border: 1px solid #dce3eb; border-radius: 8px; background: #fff;
  color: #667386; font-size: 11px; cursor: pointer; overflow: hidden;
  transition: border-color .18s, box-shadow .18s;
}
.mall-product-workspace .mpw-thumbnail:hover { border-color: var(--mpw-blue-border); }
.mall-product-workspace .mpw-thumbnail[aria-pressed="true"] { border: 2px solid var(--mpw-blue); background: #f4f8ff; }
.mall-product-workspace .mpw-thumbnail img { width: 100%; height: 100%; object-fit: cover; border-radius: 4px; }
/* 图下：名称 / 频道胶囊 / 摘要（真实内容按需显示） */
.mall-product-workspace .mpw-card-name {
  margin: 0; text-align: center; color: var(--mpw-ink);
  font-size: 18px; font-weight: 700; letter-spacing: .5px; overflow-wrap: anywhere;
}
.mall-product-workspace .mpw-card-pill {
  width: fit-content; max-width: 100%; margin: 0 auto; padding: 7px 18px; border-radius: 999px;
  background: linear-gradient(90deg, var(--mpw-blue-2), var(--mpw-blue-deep)); color: #fff;
  font-size: 12.5px; font-weight: 600; letter-spacing: 1px; text-align: center;
  box-shadow: 0 6px 14px rgba(43, 92, 230, .3); overflow-wrap: anywhere;
}
.mall-product-workspace .mpw-summary:empty,
.mall-product-workspace .mpw-notices:empty,
.mall-product-workspace .mpw-fields:empty,
.mall-product-workspace .mpw-specifications:empty,
.mall-product-workspace .mpw-native-options:has(> .product-sku-list[hidden]) { display: none; }
.mall-product-workspace .mpw-summary {
  min-width: 0; color: var(--mpw-ink-2); font-size: 13px; line-height: 1.7; overflow-wrap: anywhere;
}
.mall-product-workspace .product-detail-summary { font-size: 13px; line-height: 1.8; color: var(--mpw-ink-2); overflow-wrap: anywhere; white-space: pre-wrap; }
/* 底行：编号 + 收藏 + 海报 */
.mall-product-workspace .mpw-card-foot {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding-top: 12px; border-top: 1px dashed var(--mpw-line);
  color: var(--mpw-ink-3); font-size: 12.5px;
}
.mall-product-workspace .mpw-card-code { margin-right: auto; }
.mall-product-workspace .mpw-card-foot .mf-toggle-wrap { order: 1; }
.mall-product-workspace .mpw-card-foot .mpw-poster-button { order: 2; }
.mall-product-workspace .mpw-card-code b {
  margin-left: 5px; color: var(--mpw-ink); font-size: 14px;
  font-family: Bahnschrift, "DIN Alternate", sans-serif; font-variant-numeric: tabular-nums;
}
.mall-product-workspace .mpw-card-foot .mf-toggle-wrap { display: inline-flex; align-items: center; gap: 7px; margin: 0; position: static; }
.mall-product-workspace .mpw-card-foot .mf-toggle-caption { color: #657182; font-size: 12.5px; }
.mall-product-workspace .mpw-card-foot .mf-toggle {
  display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 24px; min-height: 24px; flex: 0 0 20px;
  padding: 0; border: 0; border-radius: 4px; background: transparent; color: #7d8da1; box-shadow: none;
  cursor: pointer; transition: transform .18s ease, color .18s ease;
}
.mall-product-workspace .mpw-card-foot .mf-toggle:hover,
.mall-product-workspace .mpw-card-foot .mf-toggle[aria-pressed="true"] {
  color: #e54862; background: transparent; transform: translateY(-2px); box-shadow: none;
}
.mall-product-workspace .mpw-card-foot .mf-toggle svg { width: 16px; height: 16px; flex: 0 0 16px; }
.mall-product-workspace .mpw-card-foot .mf-retry { display: inline-flex; align-items: center; padding: 2px; border: 0; background: transparent; color: inherit; cursor: pointer; }
.mall-product-workspace .mpw-card-foot .mf-retry svg { width: 14px; height: 14px; }
.mall-product-workspace .mpw-poster-button {
  display: inline-flex; align-items: center; gap: 5px; padding: 4px 6px; border: 0; border-radius: 6px;
  background: transparent; color: var(--mpw-ink-3); font: inherit; font-size: 12.5px; cursor: pointer;
  transition: transform .18s ease, color .18s ease, background-color .18s ease;
}
.mall-product-workspace .mpw-poster-button:hover { color: var(--mpw-blue); background: var(--mpw-blue-soft); transform: translateY(-2px); }
.mall-product-workspace .mpw-poster-button svg { width: 14px; height: 14px; flex: none; }

/* ═══════════════ 右卡：信息区 ═══════════════ */
.mall-product-workspace .mpw-info { display: flex; flex-direction: column; gap: 12px; min-width: 0; align-content: start; }
.mall-product-workspace .mpw-heading { display: flex; align-items: flex-start; gap: 14px; min-width: 0; }
/* 长标题可读：任意处换行不撑破卡 */
.mall-product-workspace .mpw-title {
  margin: 0; flex: 1 1 auto; min-width: 0; color: var(--mpw-ink);
  font-size: 22px; line-height: 1.4; font-weight: 800; letter-spacing: .3px; overflow-wrap: anywhere;
}
/* 编号胶囊 + 微光扫过 */
.mall-product-workspace .mpw-title-code {
  position: relative; overflow: hidden; flex: 0 0 auto; max-width: 46%;
  padding: 5px 14px; border: 1px solid var(--mpw-line); border-radius: 999px;
  background: var(--mpw-panel); color: var(--mpw-ink-3); font-size: 12px; font-weight: 400; overflow-wrap: anywhere;
}
.mall-product-workspace .mpw-title-code::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -50%; width: 30%;
  background: linear-gradient(100deg, transparent, rgba(47, 127, 229, .12), transparent);
  transform: skewX(-18deg); animation: mpwShineSweep 3.5s ease-in-out infinite;
}

/* ── 促销价格横幅（默认橙红；节日皮肤经 data-product-festival-banner） ── */
.mall-product-workspace .mpw-promo {
  --mpw-festival-grad: linear-gradient(105deg, #f42e12 0%, #ff6a1a 55%, #ff8f1f 100%);
  position: relative; overflow: hidden; display: flex; align-items: center; gap: 18px;
  padding: 16px 26px; border-radius: 14px; color: #fff;
  background-color: #f42e12;
  background-image: var(--mpw-festival-banner-image, none), var(--mpw-festival-grad);
  background-size: cover, cover; background-position: center, center;
  box-shadow: 0 12px 26px rgba(245, 63, 63, .28);
  transition: transform .25s, box-shadow .25s;
}
.mall-product-workspace .mpw-promo:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(245, 63, 63, .34); }
.mall-product-workspace .mpw-promo[data-product-festival-banner="national_day"] { --mpw-festival-grad: linear-gradient(105deg, #b71c1c 0%, #e23b2e 55%, #f4511e 100%); }
.mall-product-workspace .mpw-promo[data-product-festival-banner="mid_autumn"] { --mpw-festival-grad: linear-gradient(105deg, #16225c 0%, #2b4a9c 55%, #3e63c8 100%); box-shadow: 0 12px 26px rgba(43, 74, 156, .30); }
.mall-product-workspace .mpw-promo[data-product-festival-banner="spring_festival"] { --mpw-festival-grad: linear-gradient(105deg, #a8071a 0%, #d42313 55%, #f06718 100%); }
.mall-product-workspace .mpw-promo::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(200px 120px at 12% 0%, rgba(255, 214, 102, .35), transparent 60%);
}
/* 内置 SVG 自带图案动效；自定义静态图片和默认渐变也保留柔和流光。
   装饰层不接收点击，文字在上层，避免遮挡价格和市场价。 */
.mall-product-workspace .mpw-promo::after {
  content: ""; position: absolute; inset: -30% -20%; pointer-events: none;
  background: radial-gradient(ellipse at 70% 50%, rgba(255, 255, 255, .28), transparent 42%),
    linear-gradient(110deg, transparent 42%, rgba(255, 255, 255, .15) 50%, transparent 58%);
  animation: mpwFestivalLight 7s ease-in-out infinite;
}
/* 使用背景图自己的星光，避免再叠一组无关星星。保留节点兼容旧详情挂载。 */
.mall-product-workspace .mpw-promo-stars { display: none; position: absolute; inset: 0; pointer-events: none; }
.mall-product-workspace .mpw-promo-stars span {
  position: absolute; line-height: 1; color: rgba(255, 214, 102, .85);
  transform-origin: center; animation: mpwTwinkle 2.6s ease-in-out infinite;
}
.mall-product-workspace .mpw-promo-stars span:nth-child(1) { right: 24%; top: 14%; font-size: 15px; }
.mall-product-workspace .mpw-promo-stars span:nth-child(2) { right: 13%; top: 52%; font-size: 12px; color: rgba(255, 214, 102, .7); animation-delay: -.6s; }
.mall-product-workspace .mpw-promo-stars span:nth-child(3) { right: 32%; top: 62%; font-size: 10px; color: rgba(255, 214, 102, .55); animation-delay: -1.2s; }
.mall-product-workspace .mpw-promo-stars span:nth-child(4) { right: 5%; top: 18%; font-size: 11px; color: rgba(255, 214, 102, .5); animation-delay: -1.8s; }
.mall-product-workspace .mpw-price { position: relative; z-index: 1; display: flex; flex-direction: column; gap: 6px; min-width: 0; padding: 0; background: none; border: 0; }
/* 售价标签：视觉隐藏但保留可访问名 */
.mall-product-workspace .mpw-price-label {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip-path: inset(50%); white-space: nowrap;
}
.mall-product-workspace .mpw-price-value {
  font-family: Bahnschrift, "DIN Alternate", sans-serif;
  font-size: 48px; line-height: 1; font-weight: 800; letter-spacing: 1px; color: #fff;
  font-variant-numeric: tabular-nums; overflow-wrap: anywhere; text-shadow: 0 4px 14px rgba(120, 10, 0, .3);
  animation: mpwPricePulse .7s cubic-bezier(.34, 1.56, .64, 1) .35s backwards;
}
/* 限购 / 合计（有真实数据才显示，hidden 时收起） */
.mall-product-workspace .mpw-limit,
.mall-product-workspace .mpw-total {
  width: fit-content; max-width: 100%; margin: 0; padding: 3px 12px;
  border: 1px solid rgba(255, 255, 255, .35); border-radius: 6px;
  background: rgba(120, 10, 0, .28); color: #fff; font-size: 12px; letter-spacing: .5px; overflow-wrap: anywhere;
}
/* 比价列：市场价金胶囊 + 直降白胶囊（有真实市场价才显示） */
.mall-product-workspace .mpw-promo-comparison {
  position: relative; z-index: 1; margin-left: auto; display: flex; flex-direction: column; align-items: flex-end; gap: 10px;
}
.mall-product-workspace .mpw-market-price {
  width: fit-content; max-width: 100%; padding: 6px 16px; border-radius: 999px;
  background: linear-gradient(90deg, #ffd666, #ffb31a); color: #8a3300;
  font-size: 13px; font-weight: 700; box-shadow: 0 4px 10px rgba(120, 10, 0, .25); overflow-wrap: anywhere;
}
.mall-product-workspace .mpw-discount {
  width: fit-content; max-width: 100%; padding: 6px 16px; border-radius: 999px;
  background: #fff; color: #f42e12; font-size: 13px; font-weight: 700;
  box-shadow: 0 4px 10px rgba(120, 10, 0, .25); overflow-wrap: anywhere;
}

/* ── 字段行：销售渠道 / 商品服务（标签只来自真实配置） ── */
.mall-product-workspace .mpw-fields { display: grid; gap: 4px; min-width: 0; }
.mall-product-workspace .mpw-field-row { display: flex; align-items: center; gap: 14px; padding: 3px 0; font-size: 14px; }
.mall-product-workspace .mpw-field-label { flex: none; width: 64px; color: var(--mpw-ink-3); font-size: 13px; }
.mall-product-workspace .mpw-field-content { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; min-width: 0; }
.mall-product-workspace .mpw-sup-check {
  display: inline-flex; align-items: center; gap: 6px; padding: 5px 14px; border: 1px solid; border-radius: 8px;
  font-size: 12.5px; font-weight: 600; overflow-wrap: anywhere; cursor: default;
  transition: transform .18s, box-shadow .18s;
}
.mall-product-workspace .mpw-sup-check:hover { transform: translateY(-2px); box-shadow: 0 5px 12px rgba(31, 35, 41, .08); }
.mall-product-workspace .mpw-sup-check svg { width: 13px; height: 13px; flex: none; }
.mall-product-workspace .mpw-field-content .mpw-sup-check:nth-child(3n+1) { background: #f0fbf3; color: var(--mpw-green); border-color: #b7ebc6; }
.mall-product-workspace .mpw-field-content .mpw-sup-check:nth-child(3n+2) { background: var(--mpw-blue-soft); color: var(--mpw-blue); border-color: var(--mpw-blue-border); }
.mall-product-workspace .mpw-field-content .mpw-sup-check:nth-child(3n+3) { background: #fff7e8; color: var(--mpw-orange); border-color: #ffe1b8; }
.mall-product-workspace .mpw-sup-assure { display: inline-flex; align-items: center; gap: 6px; margin-right: 12px; color: var(--mpw-ink-2); font-size: 13.5px; overflow-wrap: anywhere; }
.mall-product-workspace .mpw-sup-assure svg { width: 15px; height: 15px; color: var(--mpw-green); flex: none; }

/* ── 规格：pc-specification-groups 保护 + 原生 SKU 列表 ── */
.mall-product-workspace .mpw-specifications { min-width: 0; }
.mall-product-workspace .pc-specification-groups { padding: 0; border: 0; background: transparent; }
.mall-product-workspace .pc-specification-groups-option { min-width: 0; border-color: #dfe5ed; }
.mall-product-workspace .pc-specification-groups-option:has(input:checked) { border-color: var(--mpw-blue); background: #f5f9ff; }
.mall-product-workspace .pc-specification-groups input { accent-color: var(--mpw-blue); }
.mall-product-workspace [data-specification-error] {
  margin: 0; padding: 10px 12px; background: #fff1f0; border: 1px solid #ffccc7;
  border-radius: 8px; color: #a33142; font-size: 13px; overflow-wrap: anywhere;
}
/* “选择规格”行内标签，与字段行对齐 */
.mall-product-workspace .mpw-native-options:has(> .product-sku-list:not([hidden])) {
  display: flex; align-items: flex-start; gap: 14px; min-width: 0;
}
.mall-product-workspace .mpw-native-options:has(> .product-sku-list:not([hidden]))::before {
  content: "选择规格"; flex: none; width: 64px; padding-top: 12px;
  color: var(--mpw-ink-3); font-size: 13px;
}
.mall-product-workspace .product-sku-list {
  flex: 1 1 auto; display: flex; flex-wrap: wrap; gap: 12px;
  /* Leave room for the selected badge; it must not widen narrow screens. */
  margin: 0; padding: 0 8px 0 0; border: 0; list-style: none; min-width: 0;
}
.mall-product-workspace .product-sku-list li {
  position: relative; flex: 0 1 auto; min-width: 150px; min-height: 80px;
  padding: 10px 20px; border: 1.5px solid var(--mpw-line); border-radius: 12px; background: #fff;
  transition: all .2s cubic-bezier(.34, 1.56, .64, 1);
}
.mall-product-workspace .product-sku-list li:hover { border-color: var(--mpw-blue-border); transform: translateY(-3px); box-shadow: 0 8px 18px rgba(47, 127, 229, .12); }
.mall-product-workspace .product-sku-list li:has(input:checked),
.mall-product-workspace .product-sku-list .mpw-selected {
  border-color: var(--mpw-blue); background: var(--mpw-blue-soft);
  box-shadow: 0 8px 18px rgba(47, 127, 229, .14); transform: translateY(-2px);
}
/* 选中 checkmarker：右上圆形对勾（纯 CSS 绘制） */
.mall-product-workspace .product-sku-list li:has(input:checked)::before,
.mall-product-workspace .product-sku-list .mpw-selected::before {
  content: ""; position: absolute; top: -8px; right: -8px; width: 20px; height: 20px; border-radius: 50%;
  background: linear-gradient(135deg, var(--mpw-blue-2), var(--mpw-blue-deep));
  box-shadow: 0 3px 8px rgba(43, 92, 230, .4);
  animation: mpwPricePulse .45s cubic-bezier(.34, 1.56, .64, 1);
}
.mall-product-workspace .product-sku-list li:has(input:checked)::after,
.mall-product-workspace .product-sku-list .mpw-selected::after {
  content: ""; position: absolute; top: -3px; right: -1px; width: 5px; height: 9px;
  border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg);
}
.mall-product-workspace .product-sku-option label {
  display: flex; flex: 1 1 auto; align-items: center; justify-content: space-between;
  gap: 12px; min-width: 0; width: 100%; cursor: pointer;
}
/* 隐藏 radio 但保留键盘可达 */
.mall-product-workspace .product-sku-option input[name="productSku"] {
  position: absolute; width: 1px; height: 1px; margin: 0; padding: 0;
  opacity: 0; pointer-events: none;
}
.mall-product-workspace .product-sku-list li:has(input:focus-visible) { outline: 2px solid var(--mpw-blue); outline-offset: 2px; }
/* JS 将 b 价格移入 label>span（strong 名称 / b 价格 / small 库存 纵排） */
.mall-product-workspace .product-sku-option label > span { display: grid; grid-template-columns: auto auto; gap: 3px 8px; min-width: 0; line-height: 1.4; }
.mall-product-workspace .product-sku-option label > span > strong { grid-column: 1 / -1; }
.mall-product-workspace .product-sku-list strong { color: #23272f; font-size: 15px; font-weight: 700; overflow-wrap: anywhere; }
.mall-product-workspace .product-sku-list .mpw-selected strong,
.mall-product-workspace .product-sku-list li:has(input:checked) strong { color: var(--mpw-blue); }
.mall-product-workspace .product-sku-list b {
  color: var(--mpw-ink-3); font-size: 12px; font-weight: 400; font-variant-numeric: tabular-nums; overflow-wrap: anywhere;
}
.mall-product-workspace .product-sku-option small { font-size: 12px; color: var(--mpw-ink-3); }
.mall-product-workspace .product-sku-option.is-disabled { opacity: .55; background: #fafbfc; }
.mall-product-workspace .product-sku-option.is-disabled:hover { transform: none; box-shadow: none; border-color: var(--mpw-line); }

/* ── 操作行：数量步进器 / 库存 / 升级会员 / 购买组（购物车+立即购买不可拆） ── */
.mall-product-workspace .mpw-action { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; min-width: 0; }
.mall-product-workspace .mpw-action .mpw-purchase { display: contents; }
.mall-product-workspace .mpw-action #productSaleAvailability {
  order: 0; flex: 0 0 100%; margin: 0; overflow-wrap: anywhere; font-size: 12.5px; color: var(--mpw-ink-3);
}
/* 纯成功提示（data-state=open）整行收起；loading/closed/error 仍显示并保留禁买校验 */
.mall-product-workspace .mpw-action #productSaleAvailability[data-state="open"] { display: none; }
/* 数量 panel：外置购买组后只剩步进器，display:contents 让 label 直接参与操作行排布 */
.mall-product-workspace .product-purchase-panel { padding: 0; border: 0; background: transparent; }
.mall-product-workspace-dialog:has(.mall-product-workspace) .mall-product-workspace .product-purchase-panel {
  position: static; inset: auto; z-index: auto; display: contents;
  margin: 0; padding: 0; border: 0; box-shadow: none; background: transparent;
}
.mall-product-workspace-dialog:has(.mall-product-workspace) .mall-product-workspace.product-detail-content { max-height: none; padding-bottom: 0; }
.mall-product-workspace .mpw-action .product-purchase-panel > label {
  order: 1; display: flex; align-items: center; flex: 0 0 auto; min-width: 0; font-size: 0;
}
.mall-product-workspace .mpw-action .mpw-stock { order: 2; flex: 0 0 auto; }
.mall-product-workspace .mpw-action .mpw-member-upgrade { order: 3; flex: 0 0 auto; margin-left: auto; }
.mall-product-workspace .mpw-action .mpw-buy-group { order: 4; }
/* 数量步进器 */
.mall-product-workspace .mpw-stepper {
  display: inline-flex; align-items: stretch; flex: 0 0 auto; width: max-content; max-width: 100%;
  border: 1.5px solid var(--mpw-line); border-radius: 10px; overflow: hidden; background: #fff;
}
.mall-product-workspace .mpw-stepper-btn {
  width: 40px; min-height: 44px; border: 0; background: #fff; color: var(--mpw-ink-2);
  font-size: 18px; cursor: pointer; transition: background .15s, color .15s, transform .15s;
}
.mall-product-workspace .mpw-stepper-btn:hover:not(:disabled) { background: var(--mpw-blue-soft); color: var(--mpw-blue); }
.mall-product-workspace .mpw-stepper-btn:active:not(:disabled) { transform: scale(.94); }
.mall-product-workspace .mpw-stepper-btn:disabled { opacity: .5; cursor: default; }
.mall-product-workspace .mpw-stepper input {
  width: 14ch; max-width: none; padding-inline: 0; height: 44px;
  border: 0 !important; border-left: 1px solid var(--mpw-line) !important; border-right: 1px solid var(--mpw-line) !important;
  border-radius: 0 !important; text-align: center; color: var(--mpw-ink);
  font-size: 15px; font-weight: 600; font-variant-numeric: tabular-nums; background: #fff;
}
.mall-product-workspace .mpw-stepper input::-webkit-outer-spin-button,
.mall-product-workspace .mpw-stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
/* 库存标记 */
.mall-product-workspace .mpw-action .mpw-stock {
  align-self: center; font-size: 12.5px; font-weight: 600; color: var(--mpw-red);
  background: #fff1f0; border: 1px solid #ffccc7; padding: 5px 12px; border-radius: 8px;
}
.mall-product-workspace .mpw-action .mpw-stock.is-empty { color: #a33142; }
/* 升级会员入口（reference .btn-up：浅蓝渐变 + 圆形图标 + 扫光） */
.mall-product-workspace .mpw-member-upgrade {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 50px; padding: 0 24px 0 12px; border: 0; border-radius: 12px;
  background: linear-gradient(135deg, #eaf3ff, #ddeaff); color: #1d5fd1;
  font-size: 15px; font-weight: 700; letter-spacing: .5px; text-decoration: none; cursor: pointer;
  box-shadow: inset 0 0 0 1.5px rgba(43, 92, 230, .2), 0 6px 16px rgba(47, 127, 229, .12);
  transition: transform .22s cubic-bezier(.34, 1.56, .64, 1), box-shadow .22s;
}
.mall-product-workspace .mpw-member-upgrade svg {
  width: 30px; height: 30px; padding: 7px; border-radius: 50%; flex: none; color: #fff;
  background: linear-gradient(135deg, var(--mpw-blue-2), var(--mpw-blue-deep));
  box-shadow: 0 4px 10px rgba(43, 92, 230, .4), inset 0 1px 0 rgba(255, 255, 255, .35);
  transition: transform .3s cubic-bezier(.34, 1.56, .64, 1);
}
.mall-product-workspace .mpw-member-upgrade::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -55%; width: 32%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .6), transparent);
  transform: skewX(-18deg); transition: left .5s ease;
}
.mall-product-workspace .mpw-member-upgrade:hover {
  transform: translateY(-2px);
  box-shadow: inset 0 0 0 1.5px rgba(43, 92, 230, .35), 0 12px 26px rgba(47, 127, 229, .22);
}
.mall-product-workspace .mpw-member-upgrade:hover::after { left: 125%; }
.mall-product-workspace .mpw-member-upgrade:hover svg { transform: rotate(360deg) scale(1.1); }
.mall-product-workspace .mpw-member-upgrade:active { transform: translateY(0) scale(.97); }
/* 购买组：不可拆 inline-flex 组，无间隔，cart 54x50 + buy ≥135 宽，永不换行拆分 */
.mall-product-workspace .mpw-buy-group {
  display: inline-flex; align-items: stretch; gap: 0; flex: 0 0 100%;
  min-width: 0; white-space: nowrap;
}
/* 购物车：54x50 纯图标（JS 已设 aria-label="加入购物车"） */
.mall-product-workspace .mpw-buy-group .mpw-cart-button {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  flex: 0 0 54px; width: 54px; min-width: 54px; height: 50px; min-height: 50px; padding: 0;
  border: 0; border-radius: 12px 0 0 12px;
  background: linear-gradient(135deg, #57b1ff, var(--mpw-blue)); color: #fff; cursor: pointer;
  transition: transform .2s, filter .2s, box-shadow .2s;
}
/* 兼容宿主预置 .mo-secondary 文本：视觉隐藏，保留可访问名 */
.mall-product-workspace .mpw-buy-group .mpw-cart-button span {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip-path: inset(50%); white-space: nowrap;
}
.mall-product-workspace .mpw-buy-group .mpw-cart-button svg { width: 19px; height: 19px; flex: none; }
.mall-product-workspace .mpw-buy-group .mpw-cart-button:hover:not(:disabled) { transform: translateY(-2px); filter: brightness(1.06); }
.mall-product-workspace .mpw-buy-group .mpw-cart-button:active:not(:disabled) { transform: scale(.92); }
.mall-product-workspace .mpw-buy-group .mpw-cart-button:disabled { opacity: .6; cursor: default; }
/* 立即购买：蓝色渐变 + 光晕呼吸 + 扫光 */
.mall-product-workspace .mpw-buy-group .primary-action {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  flex: 1 1 auto; width: auto; min-width: 135px; min-height: 50px; margin: 0; padding: 0 24px;
  border: 0; border-radius: 0 12px 12px 0;
  background: linear-gradient(135deg, var(--mpw-blue-2) 0%, var(--mpw-blue-deep) 100%); color: #fff;
  font-size: 15px; font-weight: 700; letter-spacing: 2px; white-space: nowrap; cursor: pointer;
  box-shadow: 0 10px 24px rgba(43, 92, 230, .35), inset 0 1px 0 rgba(255, 255, 255, .35);
  transition: transform .2s, filter .2s, box-shadow .2s;
  animation: mpwGlowPulse 3s ease-in-out infinite;
}
/* 无购物车回退：独占购买组时恢复完整圆角 */
.mall-product-workspace .mpw-buy-group > .primary-action:first-child { border-radius: 12px; }
.mall-product-workspace .mpw-buy-group .primary-action::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -60%; width: 34%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .5), transparent);
  transform: skewX(-18deg); transition: left .55s ease;
}
.mall-product-workspace .mpw-buy-group .primary-action:hover:not(:disabled) {
  transform: translateY(-1px); filter: brightness(1.05); box-shadow: 0 14px 30px rgba(43, 92, 230, .42);
}
.mall-product-workspace .mpw-buy-group .primary-action:hover:not(:disabled)::after { left: 130%; }
.mall-product-workspace .mpw-buy-group .primary-action:active:not(:disabled) { transform: scale(.97); }
.mall-product-workspace .mpw-buy-group .primary-action:disabled {
  opacity: .6; cursor: default; animation: none; box-shadow: none;
}
/* 购买提示 / 状态 / 复制链接 */
.mall-product-workspace .product-purchase-notice {
  margin: 0; padding: 10px 12px; background: var(--mpw-panel);
  border-left: 3px solid #dde1e8; border-radius: 8px; color: #667386; font-size: 12px; overflow-wrap: anywhere;
}
.mall-product-workspace .mpw-notices { display: grid; gap: 10px; }
.mall-product-workspace .mpw-bottom-row { display: flex; align-items: center; gap: 6px 12px; flex-wrap: wrap; min-width: 0; }
/* 协议、交付和复制共用一行；窄窗或商户填写长提示时自然换行，不截断内容。 */
.mall-product-workspace .mpw-bottom-row .mpw-notices { display: contents; }
.mall-product-workspace .mpw-bottom-row :is(.product-policy-notice, .product-purchase-notice) {
  flex: 0 1 auto; min-width: 0; max-width: 100%; margin: 0; padding: 0;
  border: 0; border-radius: 0; background: transparent; color: var(--mpw-ink-3);
  font-size: 12px; line-height: 1.6; overflow-wrap: anywhere;
}
.mall-product-workspace .mpw-bottom-row .product-policy-notice { order: 1; justify-content: flex-start; }
.mall-product-workspace .mpw-bottom-row .policy-inline-link { text-decoration: none; }
.mall-product-workspace .mpw-bottom-row .product-purchase-notice { order: 2; }
.mall-product-workspace .mpw-bottom-row:has(.product-policy-notice:not([hidden])) .product-purchase-notice {
  padding-left: 12px; border-left: 1px solid var(--mpw-line);
}
.mall-product-workspace .mpw-bottom-row > .mpw-command {
  order: 3; flex: 0 0 auto; min-height: 24px; padding: 0;
  color: var(--mpw-ink-3); font-size: 12px; line-height: 1.6;
}
.mall-product-workspace .mpw-bottom-row:has(:is(.product-policy-notice, .product-purchase-notice):not([hidden])) > .mpw-command {
  padding-left: 12px; border-left: 1px solid var(--mpw-line); border-radius: 0;
}
.mall-product-workspace .mpw-bottom-row > .mpw-command svg { display: none; }
/* 收藏结果及错误仍单独可读，不挤入购买说明。 */
.mall-product-workspace .mpw-bottom-row .mf-store-notice { order: 4; flex: 0 0 100%; min-width: 0; }
.mall-product-workspace .mpw-command {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 36px; max-width: 100%; padding: 6px 8px; border: 0; border-radius: 6px;
  background: transparent; color: #4d617b; font: inherit; font-size: 13px; line-height: 1.5;
  cursor: pointer; overflow-wrap: anywhere; transition: background .18s, color .18s;
}
.mall-product-workspace .mpw-command:hover:not(:disabled) { background: #edf4ff; color: var(--mpw-blue); }
.mall-product-workspace .mpw-command:disabled { opacity: .55; cursor: default; }
.mall-product-workspace .mpw-command svg { width: 17px; height: 17px; flex: 0 0 17px; }
.mall-product-workspace .mpw-status { margin: 0; color: #257348; font-size: 13px; overflow-wrap: anywhere; }
.mall-product-workspace .mpw-status.is-error {
  padding: 10px 12px; background: #fff1f0; border: 1px solid #ffccc7; border-radius: 8px; color: #a33142;
}
.mall-product-workspace .mpw-copy-value {
  width: 100%; min-width: 0; padding: 10px; border: 1px solid #c7d6e7; border-radius: 6px;
  font: inherit; font-size: 12px; background: #fff; color: #263341;
}

/* ═══════════════ Tabs 与记录表 ═══════════════ */
.mall-product-workspace .mpw-sup-tabs { min-width: 0; }
.mall-product-workspace .mpw-sup-tablist { display: flex; gap: 8px; flex-wrap: wrap; border-bottom: 1px solid var(--mpw-line); }
.mall-product-workspace .mpw-sup-tab {
  position: relative; border: 0; background: none; padding: 12px 22px; margin-bottom: -1px;
  color: var(--mpw-ink-3); font: inherit; font-size: 15px; cursor: pointer; transition: color .2s;
}
.mall-product-workspace .mpw-sup-tab:hover { color: var(--mpw-blue); }
.mall-product-workspace .mpw-sup-tab[aria-selected="true"] { color: var(--mpw-blue); font-weight: 700; }
.mall-product-workspace .mpw-sup-tab[aria-selected="true"]::after {
  content: ""; position: absolute; left: 22px; right: 22px; bottom: -1px; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, var(--mpw-blue-2), var(--mpw-blue-deep));
  animation: mpwRiseIn .4s cubic-bezier(.22, .68, .32, 1);
}
.mall-product-workspace .mpw-sup-panel { padding: 20px 4px 26px; }
.mall-product-workspace .mpw-sup-empty { margin: 0; padding: 26px 0; text-align: center; color: var(--mpw-ink-3); font-size: 13px; }
.mall-product-workspace .mpw-sup-empty svg { display: block; width: 42px; height: 42px; margin: 0 auto; stroke: #d7dce2; stroke-width: 1; }
.mall-product-workspace .mpw-sup-empty p { margin: 10px 0 0; }
.mall-product-workspace .mpw-sup-table { width: 100%; border-collapse: collapse; }
.mall-product-workspace .mpw-sup-table th { padding: 10px 12px; background: var(--mpw-panel); color: var(--mpw-ink-3); font-size: 12px; font-weight: 550; text-align: left; }
.mall-product-workspace .mpw-sup-table td { padding: 11px 12px; border-top: 1px solid #eef0f4; color: #4a5060; font-size: 13px; overflow-wrap: anywhere; transition: background .2s; }
.mall-product-workspace .mpw-sup-table tbody tr:hover td { background: var(--mpw-blue-soft); }
.mall-product-workspace .mpw-sup-table .mpw-sup-num { font-variant-numeric: tabular-nums; }
.mpw-record-filters { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin: 0 0 12px; }
.mpw-record-filters input, .mpw-record-filters select {
  width: 180px; min-height: 36px; margin: 0; padding: 7px 10px;
  border: 1px solid #ddd; border-radius: 6px; background: #fff; font: inherit; font-size: 13px;
}
.mpw-record-filters select { width: 120px; }
.mpw-record-query { min-height: 36px; border: 0; border-radius: 6px; padding: 7px 20px; background: var(--mpw-blue, #2f7fe5); color: #fff; font: inherit; cursor: pointer; }
.mpw-record-hint { margin-left: auto; color: #89929d; font-size: 12px; }

/* ═══════════════ 详情页签概览：商品信息表 + 购买流程 ═══════════════ */
.mall-product-workspace .mpw-sup-overview { display: grid; grid-template-columns: minmax(0, 1fr); gap: 28px; min-width: 0; }
.mall-product-workspace .mpw-ov-col { min-width: 0; }
.mall-product-workspace .mpw-ov-title { display: flex; align-items: center; gap: 10px; margin: 0 0 18px; color: var(--mpw-ink); font-size: 16px; font-weight: 700; }
.mall-product-workspace .mpw-ov-title::before { content: ""; width: 4px; height: 15px; border-radius: 2px; background: linear-gradient(var(--mpw-blue-2), var(--mpw-blue-deep)); }
.mall-product-workspace .mpw-ov-spec { border: 1px solid var(--mpw-line); border-radius: 14px; overflow: hidden; }
.mall-product-workspace .mpw-ov-row { display: flex; font-size: 14px; border-bottom: 1px solid var(--mpw-line); transition: background .2s; }
.mall-product-workspace .mpw-ov-row:last-child { border-bottom: 0; }
.mall-product-workspace .mpw-ov-row:nth-child(odd) { background: #fbfcfe; }
.mall-product-workspace .mpw-ov-row:hover { background: var(--mpw-blue-soft); }
.mall-product-workspace .mpw-ov-k { flex: none; width: 120px; padding: 14px 20px; border-right: 1px solid var(--mpw-line); color: var(--mpw-ink-3); }
.mall-product-workspace .mpw-ov-v { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; min-width: 0; padding: 14px 20px; color: var(--mpw-ink); overflow-wrap: anywhere; }
.mall-product-workspace .mpw-ov-chip { padding: 2px 10px; border: 1px solid #b7ebc6; border-radius: 999px; background: #f0fbf3; color: var(--mpw-green); font-size: 11px; }
.mall-product-workspace .mpw-ov-steps { display: flex; flex-direction: column; }
.mall-product-workspace .mpw-ov-step { position: relative; display: flex; gap: 16px; padding-bottom: 26px; }
.mall-product-workspace .mpw-ov-step:last-child { padding-bottom: 0; }
.mall-product-workspace .mpw-ov-step::before { content: ""; position: absolute; left: 16px; top: 36px; bottom: 2px; width: 2px; background: linear-gradient(var(--mpw-blue-border), var(--mpw-blue-soft)); }
.mall-product-workspace .mpw-ov-step:last-child::before { display: none; }
.mall-product-workspace .mpw-ov-n {
  display: grid; place-items: center; flex: none; width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(135deg, var(--mpw-blue-2), var(--mpw-blue-deep)); color: #fff;
  font-family: Bahnschrift, "DIN Alternate", sans-serif; font-size: 14px; font-weight: 700;
  box-shadow: 0 4px 10px rgba(43, 92, 230, .3);
  transition: transform .3s cubic-bezier(.34, 1.56, .64, 1);
}
.mall-product-workspace .mpw-ov-step:hover .mpw-ov-n { transform: rotate(360deg) scale(1.12); }
.mall-product-workspace .mpw-ov-t b { display: block; margin-bottom: 3px; font-size: 14.5px; font-weight: 600; }
.mall-product-workspace .mpw-ov-t p { margin: 0; color: var(--mpw-ink-3); font-size: 12.5px; line-height: 1.6; }

/* ═══════════════ 商品详情正文 ═══════════════ */
.mall-product-workspace .mpw-body-heading { padding-top: 24px; border-top: 1px solid #e4eaf1; overflow-wrap: anywhere; }
.mall-product-workspace .mpw-body-heading:has(+ .mpw-body) { margin-bottom: -16px; }
.mall-product-workspace .mpw-body-heading h3 { margin: 0; color: #29384b; font-size: 18px; line-height: 1.5; }
.mall-product-workspace .mpw-product-code { margin: 6px 0 0; font-size: 12px; color: #657182; }
.mall-product-workspace .mpw-content-empty { margin: 16px 0 0; color: #657182; }
.mall-product-workspace .mpw-body { margin: 0; padding: 0; min-width: 0; overflow-wrap: anywhere; }
.mall-product-workspace .mpw-body .mps-product-description { font-size: 14px; line-height: 1.9; color: #4e5e72; }
.mall-product-workspace .mpw-body :is(img, video, iframe) { max-width: 100%; }
.mall-product-workspace .mpw-body .mps-product-gallery img { max-height: none; }
.mall-product-workspace .mpw-body table { display: block; max-width: 100%; overflow: auto; }

/* ═══════════════ 动效关键帧（命名 mpw 前缀，避免污染） ═══════════════ */
@keyframes mpwPageIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes mpwRiseIn { from { opacity: 0; transform: translateY(26px) scale(.985); } to { opacity: 1; transform: none; } }
@keyframes mpwShineSweep { from { left: -60%; } to { left: 130%; } }
@keyframes mpwTwinkle { 0%, 100% { opacity: .35; transform: scale(.85); } 50% { opacity: 1; transform: scale(1.1); } }
@keyframes mpwFestivalLight {
  0%, 100% { transform: translateX(-14%); opacity: .35; }
  50% { transform: translateX(14%); opacity: .85; }
}
@keyframes mpwPricePulse { 0% { transform: scale(.92); } 55% { transform: scale(1.05); } 100% { transform: scale(1); } }
@keyframes mpwGlowPulse { 0%, 100% { box-shadow: 0 10px 24px rgba(43, 92, 230, .35), inset 0 1px 0 rgba(255, 255, 255, .35); } 50% { box-shadow: 0 14px 34px rgba(43, 92, 230, .55), inset 0 1px 0 rgba(255, 255, 255, .35); } }

/* 入场瀑布（backwards：延迟期套用首帧，结束后交还 transform 给 3D 倾斜变量） */
.mall-product-workspace > .mpw-media { animation: mpwRiseIn .6s cubic-bezier(.22, .68, .32, 1) backwards; }
.mall-product-workspace > .mpw-info { animation: mpwRiseIn .6s cubic-bezier(.22, .68, .32, 1) .12s backwards; }
.mall-product-workspace > .mpw-sup-tabs,
.mall-product-workspace > .mpw-sup-overview,
.mall-product-workspace > .mpw-body-heading,
.mall-product-workspace > .mpw-body { animation: mpwRiseIn .6s cubic-bezier(.22, .68, .32, 1) .24s backwards; }
/* 商品卡 3D 倾斜：根窗口 JS 写入 --mpw-tilt-x(rotateX) / --mpw-tilt-y(rotateY) */
.mall-product-workspace > .mpw-media {
  transform: perspective(900px) rotateX(var(--mpw-tilt-x, 0deg)) rotateY(var(--mpw-tilt-y, 0deg));
  transform-style: preserve-3d; will-change: transform;
  transition: box-shadow .3s;
}

/* ═══════════════ redesign-v2 PC 整页版面（≥721px） ═══════════════ */
@media (min-width: 721px) {
  dialog.product-detail-dialog {
    inset: 0; width: 100vw; max-width: none; height: 100dvh; max-height: 100dvh;
    margin: 0; padding: 0; border: 0; border-radius: 0;
    background: #f5f7fa; box-shadow: none;
    scroll-padding-bottom: 110px;
  }
  dialog.product-detail-dialog::backdrop { background: #f5f7fa; }
  dialog.product-detail-dialog[open] { animation: mpwPageIn .18s ease-out; }
  dialog.product-detail-dialog > div { display: block; padding: 0; gap: 0; }
  /* 蓝色面包屑通栏（保持原样） */
  dialog.product-detail-dialog > div > header {
    position: sticky; top: 0; z-index: 10;
    align-items: center; height: 54px;
    padding: 0 max(24px, calc((100vw - var(--store-content-width, 1240px)) / 2));
    background: linear-gradient(90deg, #1fa2f0 0%, #2e7ce6 100%);
    border-bottom: 0; color: #fff;
  }
  dialog.product-detail-dialog > div > header p {
    margin: 0; color: #fff; font-size: 13.5px; letter-spacing: .01em;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: calc(100vw - 120px);
  }
  dialog.product-detail-dialog > div > header p::before { content: "⌂ "; opacity: .9; }
  dialog.product-detail-dialog > div > header .icon-button { border-radius: 8px; color: #fff; }
  dialog.product-detail-dialog > div > header .icon-button:hover { background: rgb(255 255 255 / .16); color: #fff; }
  dialog.product-detail-dialog > div > footer { display: none; }
  dialog.product-detail-dialog .product-detail-content { max-height: none; overflow: visible; }
  /* 加载/错误态居中小卡 */
  dialog.product-detail-dialog .product-detail-content:not(.mall-product-workspace) {
    max-width: 620px; margin: 56px auto; padding: 30px;
    background: #fff; border: 1px solid #edf1f7; border-radius: 20px;
  }
  /* 主体：左 380 右自适应双白卡同行齐平，间隔 22，20 圆角；窗口变窄不溢出 */
  .mall-product-workspace {
    width: min(var(--store-content-width, 1240px), calc(100vw - 48px));
    margin: 24px auto 0; padding: 0 0 110px;
    grid-template-columns: 380px minmax(0, 1fr); gap: 0 22px; align-items: stretch;
    background: transparent; border: 0; box-shadow: none;
  }
  .mall-product-workspace > .mpw-media {
    grid-column: 1; grid-row: 1; position: relative; overflow: hidden;
    display: flex; flex-direction: column; gap: 12px; padding: 18px 20px 16px;
    background: #fff; border: 1px solid #edf1f7; border-radius: 20px;
    box-shadow: 0 10px 34px rgba(47, 127, 229, .10), 0 2px 6px rgba(31, 35, 41, .04);
  }
  .mall-product-workspace > .mpw-media:hover {
    box-shadow: 0 24px 50px rgba(47, 127, 229, .18), 0 4px 10px rgba(31, 35, 41, .06);
  }
  .mall-product-workspace > .mpw-info {
    grid-column: 2; grid-row: 1; display: flex; flex-direction: column; gap: 12px;
    padding: 26px 30px 22px;
    background: #fff; border: 1px solid #edf1f7; border-radius: 20px;
    box-shadow: 0 10px 34px rgba(47, 127, 229, .07), 0 2px 6px rgba(31, 35, 41, .04);
  }
  .mall-product-workspace .mpw-card-foot { margin-top: auto; }
  .mall-product-workspace .mpw-heading { padding: 0; border: 0; }
  /* 操作行同排：数量 | 库存 | 升级会员 | 购买组（54 购物车 + 立即购买） */
  .mall-product-workspace .mpw-action { margin-top: auto; gap: 14px; flex-wrap: wrap; }
  .mall-product-workspace .mpw-action .mpw-buy-group { flex: 0 0 auto; }
  .mall-product-workspace .mpw-buy-group .primary-action { padding: 0 42px; font-size: 16.5px; letter-spacing: 3px; }
  .mall-product-workspace .mpw-notices { padding-top: 0; }
  /* 下方页签与详情组成一张通栏白卡（overview 仍是 root 直接子，CSS 视觉合卡） */
  .mall-product-workspace .mpw-sup-tabs {
    grid-column: 1 / -1; grid-row: 2; margin-top: 24px; padding: 16px 26px 0;
    background: #fff; border: 1px solid #edf1f7; border-bottom: 0; border-radius: 20px 20px 0 0;
    box-shadow: 0 10px 34px rgba(47, 127, 229, .06);
  }
  .mall-product-workspace .mpw-sup-overview {
    grid-column: 1 / -1; grid-row: 3; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 48px;
    padding: 28px 32px 10px; background: #fff; border: 1px solid #edf1f7; border-top: 0;
  }
  .mall-product-workspace .mpw-body-heading {
    grid-column: 1 / -1; grid-row: 4; margin: 0; padding: 18px 32px 0;
    background: #fff; border: 1px solid #edf1f7; border-top: 0; border-bottom: 0;
  }
  .mall-product-workspace .mpw-body-heading:has(+ .mpw-body) { margin: 0; }
  .mall-product-workspace .mpw-body {
    grid-column: 1 / -1; grid-row: 5; padding: 12px 32px 34px;
    background: #fff; border: 1px solid #edf1f7; border-top: 0; border-radius: 0 0 20px 20px;
    box-shadow: 0 10px 34px rgba(47, 127, 229, .06);
  }
  /* 合卡兜底：正文缺失时由最后一个区块封底圆角 */
  .mall-product-workspace > .mpw-body-heading:last-child,
  .mall-product-workspace > .mpw-sup-overview:last-child {
    border-bottom: 1px solid #edf1f7; border-radius: 0 0 20px 20px;
    box-shadow: 0 10px 34px rgba(47, 127, 229, .06); padding-bottom: 26px;
  }
  /* 订单/调价页签：隐藏概览与正文，tabs 仍保持 20 圆角整卡 */
  .mall-product-workspace.mpw-tab-orders .mpw-sup-overview, .mall-product-workspace.mpw-tab-orders .mpw-body-heading,
  .mall-product-workspace.mpw-tab-orders .mpw-body, .mall-product-workspace.mpw-tab-pricing .mpw-sup-overview,
  .mall-product-workspace.mpw-tab-pricing .mpw-body-heading, .mall-product-workspace.mpw-tab-pricing .mpw-body { display: none; }
  .mall-product-workspace.mpw-tab-orders .mpw-sup-tabs, .mall-product-workspace.mpw-tab-pricing .mpw-sup-tabs {
    border-bottom: 1px solid #edf1f7; border-radius: 20px; padding-bottom: 6px;
  }
}

/* ── ≤1100：左卡 300，紧凑右卡 ── */
@media (min-width: 721px) and (max-width: 1100px) {
  dialog.product-detail-dialog > div > header { padding: 0 18px; }
  .mall-product-workspace { grid-template-columns: 300px minmax(0, 1fr); gap: 0 16px; width: calc(100vw - 36px); margin: 18px auto 0; }
  .mall-product-workspace > .mpw-info { padding: 20px 22px 18px; }
  .mall-product-workspace .mpw-title { font-size: 19px; }
  .mall-product-workspace .mpw-promo { padding: 14px 16px; }
  .mall-product-workspace .mpw-price-value { font-size: 36px; }
  .mall-product-workspace .mpw-member-upgrade { height: 46px; padding: 0 16px 0 10px; font-size: 13.5px; }
  .mall-product-workspace .mpw-buy-group .primary-action { min-width: 135px; padding: 0 22px; letter-spacing: 2px; }
  .mall-product-workspace .mpw-sup-overview { grid-template-columns: minmax(0, 1fr); gap: 28px; padding: 22px 22px 8px; }
  .mall-product-workspace .mpw-body-heading, .mall-product-workspace .mpw-body { padding-left: 22px; padding-right: 22px; }
}

/* ── ≤900：单列堆叠；操作行整组换行（购买组整组一行，cart+buy 永不拆开） ── */
@media (min-width: 721px) and (max-width: 900px) {
  .mall-product-workspace { grid-template-columns: minmax(0, 1fr); gap: 22px; }
  .mall-product-workspace > .mpw-media { grid-column: 1; grid-row: auto; width: 100%; max-width: 520px; justify-self: center; }
  .mall-product-workspace > .mpw-info { grid-column: 1; grid-row: auto; }
  .mall-product-workspace > .mpw-sup-tabs { grid-row: auto; margin-top: 2px; }
  .mall-product-workspace > .mpw-sup-overview,
  .mall-product-workspace > .mpw-body-heading,
  .mall-product-workspace > .mpw-body { grid-column: 1 / -1; grid-row: auto; }
  .mall-product-workspace .mpw-action .mpw-buy-group { flex: 0 0 100%; }
}

/* ── ≤720：窄窗单列，控件与长规格不撑宽 ── */
@media (max-width: 720px) {
  .mall-product-workspace .mpw-bottom-row:has(.product-policy-notice:not([hidden])) .product-purchase-notice,
  .mall-product-workspace .mpw-bottom-row:has(:is(.product-policy-notice, .product-purchase-notice):not([hidden])) > .mpw-command { padding-left: 0; border-left: 0; }
  .mall-product-workspace-dialog { width: calc(100vw - 20px); max-height: calc(100dvh - 20px); }
  .mall-product-workspace-dialog > div { padding: 16px; gap: 16px; }
  .mall-product-workspace-dialog > div > header .icon-button { flex-basis: 40px; width: 40px; min-width: 40px; height: 40px; }
  .mall-product-workspace { grid-template-columns: minmax(0, 1fr); gap: 22px; }
  .mall-product-workspace .mpw-media {
    width: 100%; max-width: 440px; justify-self: center;
    display: flex; flex-direction: column; gap: 10px;
  }
  .mall-product-workspace .mpw-ribbon { top: 16px; right: -38px; padding: 5px 42px; font-size: 11px; }
  .mall-product-workspace .mpw-title { font-size: 20px; }
  .mall-product-workspace .mpw-title-code { max-width: 100%; }
  .mall-product-workspace .mpw-promo { flex-wrap: wrap; padding: 14px 16px; border-radius: 12px; }
  .mall-product-workspace .mpw-price-value { font-size: 32px; }
  .mall-product-workspace .mpw-promo-comparison { flex-direction: row; flex-wrap: wrap; align-items: center; margin-left: 0; }
  .mall-product-workspace .mpw-image-caption { gap: 4px; }
  .mall-product-workspace .mpw-thumbnail { flex-basis: 56px; width: 56px; height: 56px; }
  .mall-product-workspace .mpw-field-row { gap: 12px; padding: 8px 0; font-size: 12px; }
  .mall-product-workspace .mpw-field-label { width: auto; }
  .mall-product-workspace .mpw-field-content { min-width: 0; overflow-wrap: anywhere; }
  .mall-product-workspace .mpw-native-options:has(> .product-sku-list:not([hidden])) { display: block; }
  .mall-product-workspace .mpw-native-options:has(> .product-sku-list:not([hidden]))::before { display: block; width: auto; padding-top: 0; margin-bottom: 8px; }
  .mall-product-workspace .product-sku-list li { min-width: 0; flex: 1 1 100%; }
  .mall-product-workspace .mpw-stepper { display: flex; width: max-content; max-width: 100%; }
  .mall-product-workspace .mpw-stepper-btn { flex: 0 0 28px; width: 28px; min-height: 40px; padding: 0; }
  .mall-product-workspace .mpw-stepper input { flex: 0 0 auto; min-width: 0; width: 14ch; max-width: none; height: 40px; padding: 0; }
  .mall-product-workspace .mpw-action .mpw-stock { align-self: center; }
  .mall-product-workspace .mpw-member-upgrade { height: 46px; padding: 0 16px 0 10px; font-size: 13.5px; }
  .mall-product-workspace .mpw-buy-group .primary-action { padding: 0 18px; font-size: 15px; letter-spacing: 2px; }
  .mall-product-workspace .mpw-sup-tablist { gap: 4px; }
  .mall-product-workspace .mpw-sup-tab { padding: 10px 12px; }
  .mall-product-workspace .mpw-sup-panel { max-width: 100%; overflow: auto; }
  .mall-product-workspace .mpw-sup-table { font-size: 12px; }
  .mall-product-workspace .mpw-sup-table th, .mall-product-workspace .mpw-sup-table td { padding: 8px; }
  .mall-product-workspace .mpw-ov-k { width: 84px; padding: 11px 12px; }
  .mall-product-workspace .mpw-ov-v { padding: 11px 12px; }
  .mall-product-workspace .mpw-body-heading { padding-top: 18px; }
}

/* ── ≤420（390/320）：进一步紧凑，无横向溢出 ── */
@media (max-width: 420px) {
  .mall-product-workspace-dialog > div { padding: 12px; gap: 12px; }
  .mall-product-workspace { gap: 16px; }
  .mall-product-workspace .mpw-title { font-size: 18px; }
  .mall-product-workspace .mpw-price-value { font-size: 30px; }
  .mall-product-workspace .mpw-card-name { font-size: 16px; }
  .mall-product-workspace .mpw-member-upgrade { gap: 7px; padding: 0 12px 0 8px; font-size: 13px; letter-spacing: 0; }
  .mall-product-workspace .mpw-member-upgrade svg { width: 26px; height: 26px; padding: 6px; }
  .mall-product-workspace .mpw-buy-group .primary-action { min-width: 0; padding: 0 14px; font-size: 14.5px; letter-spacing: 1px; }
  .mall-product-workspace .mpw-card-foot { gap: 8px; }
}

/* ═══════════════ prefers-reduced-motion：彻底停用所有动效 ═══════════════ */
@media (prefers-reduced-motion: reduce) {
  dialog.product-detail-dialog[open] { animation: none !important; }
  dialog.product-detail-dialog .mall-product-workspace,
  dialog.product-detail-dialog .mall-product-workspace *,
  dialog.product-detail-dialog .mall-product-workspace *::before,
  dialog.product-detail-dialog .mall-product-workspace *::after,
  .mall-product-workspace,
  .mall-product-workspace *,
  .mall-product-workspace *::before,
  .mall-product-workspace *::after {
    animation: none !important;
    transition: none !important;
  }
  /* 交互位移/倾斜/悬停 transform 一并归零（保留绶带定位与对勾绘制所需 transform 的元素除外） */
  .mall-product-workspace > .mpw-media,
  .mall-product-workspace .mpw-promo,
  .mall-product-workspace .mpw-sup-check,
  .mall-product-workspace .product-sku-list li,
  .mall-product-workspace .mpw-member-upgrade,
  .mall-product-workspace .mpw-member-upgrade svg,
  .mall-product-workspace .mpw-buy-group .mpw-cart-button,
  .mall-product-workspace .mpw-buy-group .primary-action,
  .mall-product-workspace .mpw-stepper-btn,
  .mall-product-workspace .mpw-poster-button,
  .mall-product-workspace .mpw-card-foot .mf-toggle,
  .mall-product-workspace .mpw-ov-step:hover .mpw-ov-n {
    transform: none !important;
  }
}