/* ============================================================
   style.css —— 商品内容页专用（全部样式限定在 .product-single 内，
   不再影响全站与页脚）
   ============================================================ */

:root {
  --primary: #8f7040;
  --primary-hover: #b3955c;
  --secondary: #b3955c;
  --secondary-hover: #a5854f;
  --dark: #333333;
  --text: #666666;
  --light: #cccccc;
  --border: #eeeeee;
  --bg: #ffffff;
  --bg-soft: #f4f4f4;
  --container: 1400px;
  --radius: 4px;
  --shadow: 0 5px 30px rgba(0, 0, 0, 0.08);
  --header-h: 88px;
}

/* ---------- 基础重置（:where() 零优先级，不与 wonder.css 组件样式冲突） ---------- */
.product-single { font-size: 15px; line-height: 1.75; color: #3a342c; }
.product-single :where(*) { box-sizing: border-box; margin: 0; padding: 0; }
.product-single :where(a) { color: inherit; text-decoration: none; transition: color .25s; }
.product-single :where(a:hover) { color: var(--primary); }
.product-single :where(img) { max-width: 100%; display: block; }
.product-single :where(ul) { list-style: none; }
.product-single :where(button) { font-family: inherit; cursor: pointer; border: none; background: none; }
.product-single :where(i) { font-style: normal; }

.product-single .container { max-width: var(--container); margin: 0 auto; padding: 0 15px; }
.product-single .row { display: flex; flex-wrap: wrap; }
.product-single .hidden { display: none !important; }

/* ---------- 通用按钮 ---------- */
.product-single .btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 26px; border-radius: var(--radius);
  background: var(--primary); color: #fff; font-weight: 600;
  font-size: 13px; letter-spacing: .02em; transition: background .25s, transform .1s;
}
.product-single .btn:hover { background: var(--primary-hover); color: #fff; }
.product-single .btn--outline { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.product-single .btn--outline:hover { background: var(--primary); color: #fff; }

/* ---------- 区块标题 ---------- */
.product-single .section { margin: 0; }
.product-single .section__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 26px; }
.product-single .section__title { font-size: 24px; font-weight: 800; color: var(--dark); position: relative; padding-left: 16px; }
.product-single .section__title::before { content: ""; position: absolute; left: 0; top: 4px; bottom: 4px; width: 4px; border-radius: 2px; background: var(--primary); }
.product-single .section__title--line { padding-left: 0; border-bottom: 1px solid var(--border); padding-bottom: 12px; position: relative; }
.product-single .section__title--line::before { display: none; }
.product-single .section__title--line::after { content: ""; position: absolute; left: 0; bottom: -1px; width: 40px; height: 2px; background: var(--primary); }

/* ---------- 商品详情主体 ---------- */
.product-single { padding: 34px 0 70px; }
.product-single .section:last-child { margin-bottom: 20px; }
.product-single .pl-sec { margin-top: 6px; }
.product-single__wrap { display: grid; grid-template-columns: 1fr 340px; gap: 36px; align-items: start; }
.product-single .product-side { position: sticky; top: 100px; }
.product-single .product-side > * + * { margin-top: 22px; }
.product-single .product-left > * + * { margin-top: 30px; }
.product-single .product-main { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }

/* 图廊 */
.product-single .product-gallery { position: relative; }
.product-single .product-gallery__stage {
  position: relative; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; background: var(--bg-soft); aspect-ratio: 4 / 4.4;
}
.product-single .zoom-wrap {
  position: relative; width: 100%; height: 100%; cursor: crosshair;
  border-radius: var(--radius); overflow: hidden;
}
.product-single .zoom-img { width: 100%; height: 100%; object-fit: cover; display: block; transition: opacity .3s; }
.product-single .zoom-hint {
  position: absolute; right: 12px; bottom: 12px; z-index: 4;
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: #fff; background: rgba(17,24,39,.55);
  padding: 4px 10px; border-radius: 30px; pointer-events: none;
  opacity: 0; transform: translateY(6px); transition: all .25s;
}
.product-single .zoom-wrap:hover .zoom-hint { opacity: 1; transform: translateY(0); }
.product-single .zoom-lens {
  position: absolute; top: 0; left: 0; display: none; pointer-events: none;
  border: 1px solid rgba(0,0,0,.25); background: rgba(179,149,92,.18);
  z-index: 12;
}
.product-single .zoom-result {
  position: absolute; inset: 0; width: 100%; height: 100%; display: none;
  border-radius: var(--radius); background-color: #fff;
  background-repeat: no-repeat; background-position: center;
  z-index: 11; pointer-events: none;
}

.product-single .product-gallery__badges { position: absolute; top: 12px; left: 12px; display: flex; gap: 6px; z-index: 3; }
.product-single .product-gallery__badges .product-gallery__badge { position: static; }
.product-single .product-gallery__badge { position: absolute; top: 16px; left: 16px; background: var(--secondary); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 30px; z-index: 3; }

/* 缩略图 */
.product-single .product-thumbs { display: flex; align-items: center; gap: 10px; margin-top: 14px; }
.product-single .product-thumbs__track { display: flex; gap: 12px; flex-wrap: nowrap; overflow-x: auto; overflow-y: hidden; scroll-behavior: smooth; width: calc(76px * 5 + 12px * 4); padding: 2px; scrollbar-width: none; -ms-overflow-style: none; }
.product-single .product-thumbs__track::-webkit-scrollbar { display: none; }
.product-single .product-thumb { flex: 0 0 76px; width: 76px; height: 86px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; cursor: pointer; opacity: .6; transition: all .2s; }
.product-single .product-thumb.active, .product-single .product-thumb:hover { border-color: var(--primary); opacity: 1; box-shadow: 0 2px 10px rgba(179,149,92,.2); }
.product-single .product-thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-single .thumbs-prev, .product-single .thumbs-next { flex: 0 0 auto; width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--border); background: #fff; color: var(--dark); cursor: pointer; display: grid; place-items: center; transition: all .2s; }
.product-single .thumbs-prev:hover, .product-single .thumbs-next:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

@media (max-width: 991px) {
  .product-single .zoom-result { display: none !important; }
  .product-single .zoom-wrap { cursor: default; }
  .product-single .product-thumbs__track { width: auto; flex: 1; min-width: 0; max-width: none; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .product-single .product-thumb { flex: 0 0 64px; width: 64px; height: 64px; }
}

/* 信息区 summary */
.product-single .summary__title { font-size: 26px; font-weight: 800; color: var(--dark); margin-bottom: 10px; line-height: 1.3; }
.product-single .summary__cat { font-size: 13px; color: var(--light); margin-bottom: 6px; }
.product-single .summary__cat a { color: var(--primary); }
.product-single .summary__rating { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--light); margin-bottom: 14px; }
.product-single .summary__rating .stars { color: #ffb230; }
.product-single .summary__price { font-size: 26px; font-weight: 700; color: var(--primary); margin-bottom: 16px; }
.product-single .summary__price del { font-size: 16px; color: var(--light); margin-left: 10px; font-weight: 400; }
.product-single .summary__desc { color: var(--text); margin-bottom: 22px; line-height: 1.85; font-size: 13.5px; }
.product-single .summary__desc ul { margin: 0; }
.product-single .summary__desc li { position: relative; padding-left: 24px; margin-bottom: 7px; }
.product-single .summary__desc li::before { content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900; position: absolute; left: 0; top: 1px; color: var(--primary); }
.product-single .summary__meta { display: flex; flex-wrap: wrap; gap: 10px 24px; margin-bottom: 16px; padding: 14px 16px; background: var(--bg-soft); border-radius: var(--radius); font-size: 13px; color: var(--text); }
.product-single .summary__meta em { color: var(--light); font-style: normal; margin-right: 4px; }
.product-single .summary__selling { margin-bottom: 16px; }
.product-single .summary__selling ul { margin: 0; padding: 0; list-style: none; }
.product-single .summary__selling li { position: relative; padding-left: 24px; margin-bottom: 8px; font-size: 13.5px; color: var(--text); }
.product-single .summary__selling li::before { content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900; position: absolute; left: 0; top: 1px; color: var(--primary); }
.product-single .summary-service { display: flex; flex-wrap: wrap; gap: 10px 20px; padding: 14px 16px; border-top: none; border-radius: var(--radius); background: var(--bg-soft); font-size: 12px; color: var(--text); margin-bottom: 18px; }
.product-single .summary-service span { display: inline-flex; align-items: center; gap: 6px; font-weight: 500; }
.product-single .summary-service i { color: var(--primary); }

/* 价格卡片 */
.product-single .summary__price-card { background: linear-gradient(135deg, rgba(143,112,64,.08), rgba(143,112,64,.02)); border: 1px solid rgba(143,112,64,.18); border-radius: var(--radius); padding: 16px 18px; margin-bottom: 16px; }
.product-single .summary__price-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.product-single .summary__price-badge { background: var(--secondary); color: #fff; font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 30px; }
.product-single .summary__price-meta { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; font-size: 12px; color: var(--text); }
.product-single .summary__price-meta .price-save { color: var(--secondary); font-weight: 600; }
.product-single .summary__price-meta .price-save i { margin-right: 4px; }
.product-single .summary__countdown { display: inline-flex; align-items: center; gap: 8px; margin-top: 10px; padding: 6px 12px; background: #fff7f0; color: #d35400; border: 1px solid #ffe4d1; border-radius: 30px; font-size: 12px; font-weight: 600; }
.product-single .summary__countdown i { font-size: 13px; }
.product-single .summary__countdown .countdown-timer { font-variant-numeric: tabular-nums; }

/* 产品参数 */
.product-single .summary__meta { background: #fff; border: 1px solid var(--border); }
.product-single .summary__meta span { display: inline-flex; align-items: center; }

/* 库存/物流/售后 */
.product-single .summary__fulfilment { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-bottom: 18px; padding: 14px 16px; background: var(--bg-soft); border-radius: var(--radius); font-size: 12px; color: var(--text); }
.product-single .summary__fulfilment span { display: inline-flex; align-items: center; gap: 6px; }
.product-single .summary__fulfilment i { color: var(--primary); }

/* 规格选择 */
.product-single .summary__variants { margin-bottom: 18px; }
.product-single .variant { margin-bottom: 14px; }
.product-single .variant__label { display: block; font-size: 13px; color: var(--dark); font-weight: 600; margin-bottom: 8px; }
.product-single .variant__options { display: flex; flex-wrap: wrap; gap: 10px; }
.product-single .variant__options button { min-width: 44px; padding: 0 16px; height: 36px; border: 1px solid var(--border); border-radius: 30px; background: #fff; color: var(--text); font-size: 13px; transition: all .2s; }
.product-single .variant__options button:hover { border-color: var(--primary); color: var(--primary); }
.product-single .variant__options button.active { border-color: var(--primary); background: var(--primary); color: #fff; box-shadow: 0 3px 10px rgba(143,112,64,.18); }

/* 底部操作栏（收藏/对比/分享） */
.product-single .summary__foot { display: flex; align-items: center; gap: 18px; padding-top: 18px; border-top: 1px solid var(--border); flex-wrap: wrap; font-size: 13px; color: var(--text); }
.product-single .summary__foot > a { display: inline-flex; align-items: center; gap: 6px; transition: color .2s; }
.product-single .summary__foot > a:hover { color: var(--primary); }
.product-single .summary__foot > a.active { color: var(--secondary); }
.product-single .summary__foot .social { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.product-single .summary__foot .social span { color: var(--light); }
.product-single .summary__foot .social a { width: 34px; height: 34px; border: 1px solid var(--border); border-radius: 50%; display: grid; place-items: center; color: var(--text); transition: all .2s; }
.product-single .summary__foot .social a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* 数量 + 加购 */
.product-single .cart-form { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; flex-wrap: nowrap; }
.product-single .cart-form .buy-now-form { display: contents; }
.product-single .cart-form .quantity button { width: 38px; height: 46px; }
.product-single .cart-form .quantity input { width: 56px; }
.product-single .cart-form .btn-cart { flex: 1 1 0; min-width: 0; padding: 0 20px; white-space: nowrap; justify-content: center; }
@media (max-width: 575px) {
  .product-single .cart-form { flex-wrap: wrap; gap: 10px; }
  .product-single .cart-form .quantity { flex: 0 0 auto; }
  .product-single .cart-form .btn-cart { flex: 1 1 100%; }
}
.product-single .quantity { display: inline-flex; align-items: center; border: 1px solid var(--border); border-radius: 30px; overflow: hidden; background: #fff; }
.product-single .quantity button { width: 38px; height: 46px; font-size: 16px; color: var(--dark); background: #fff; transition: color .2s; }
.product-single .quantity button:hover { color: var(--primary); }
.product-single .quantity input { width: 56px; border: none; text-align: center; font-size: 15px; font-weight: 600; outline: none; -moz-appearance: textfield; color: var(--dark); }
.product-single .quantity input::-webkit-outer-spin-button, .product-single .quantity input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.product-single .btn-cart { padding: 0 26px; height: 44px; display: inline-flex; align-items: center; gap: 7px; border-radius: 22px; background: var(--primary); color: #fff; font-weight: 600; font-size: 13px; transition: all .2s; border: 1px solid transparent; box-shadow: 0 4px 12px rgba(143,112,64,.18); }
.product-single .btn-cart:hover { background: var(--primary-hover); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(143,112,64,.25); }
.product-single .btn-cart:active { transform: translateY(0); }
.product-single .btn-cart--outline { background: #fff; color: var(--dark); border-color: var(--border); }
.product-single .btn-cart--outline:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(143,112,64,.22); }
.product-single .btn-cart--outline:active { transform: translateY(0); }
.product-single .btn-cart--red { background: #b3955c; color: #fff; border-color: #b3955c; box-shadow: 0 4px 12px rgba(179,149,92,.18); }
.product-single .btn-cart--red:hover { background: #8f7040; border-color: #8f7040; color: #fff; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(143,112,64,.25); }
.product-single .btn-cart--red:active { transform: translateY(0); }

/* 收藏/对比/分享 */
.product-single .product-links { display: flex; align-items: center; gap: 18px; padding-top: 18px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.product-single .product-links > a { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text); }
.product-single .product-links > a:hover { color: var(--primary); }
.product-single .product-links .social { margin-left: auto; display: flex; gap: 8px; }
.product-single .product-links .social a { width: 34px; height: 34px; border: 1px solid var(--border); border-radius: 50%; display: grid; place-items: center; color: var(--text); }
.product-single .product-links .social a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* 联系信息列表 */
.product-single .product-links {
    display: block;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}
.product-single .contact-info-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 10px 24px;
}
.product-single .contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13.5px;
    color: var(--text);
    line-height: 1.6;
}
.product-single .contact-item i {
    width: 22px;
    font-size: 14px;
    color: var(--primary);
    flex-shrink: 0;
    text-align: center;
}
.product-single .contact-item span {
    word-break: break-all;
}

/* Tab */
.product-single .product-tabs { margin: 50px 0; }
.product-single .product-tabs .nav-tabs { display: flex; gap: 0; background: #fff; border: 1px solid var(--border); border-bottom: none; border-radius: var(--radius) var(--radius) 0 0; padding: 0 12px; margin-bottom: 0; list-style: none; }
.product-single .product-tabs .nav-tabs li { display: flex; }
.product-single .product-tabs .nav-tabs a { display: block; padding: 16px 22px; font-size: 15px; font-weight: 700; color: var(--text); position: relative; transition: color .2s; }
.product-single .product-tabs .nav-tabs a:hover { color: var(--dark); }
.product-single .product-tabs .nav-tabs a.active { color: var(--primary); }
.product-single .product-tabs .nav-tabs a.active::after { content: ""; position: absolute; left: 22px; right: 22px; bottom: 0; height: 2px; background: var(--primary); }
.product-single .tab-content { background: #fff; border: 1px solid var(--border); border-top: none; border-radius: 0 0 var(--radius) var(--radius); overflow: hidden; }
.product-single .tab-body { padding: 30px; }
.product-single .product-detail { margin: 50px 0; }
.product-single .product-detail__body { background: transparent; border: none; padding: 20px 0; }
.product-single .tab-pane { display: none; animation: pdFadeIn .3s; }
.product-single .tab-pane.active { display: block; }
@keyframes pdFadeIn { from { opacity: 0; } to { opacity: 1; } }
.product-single .tab-pane h2 { font-size: 20px; margin-bottom: 14px; color: var(--dark); }
.product-single .tab-pane p { line-height: 1.9; margin-bottom: 14px; }
.product-single .tab-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 10px; }
.product-single .tab-cols h4 { font-size: 15px; margin-bottom: 8px; color: var(--dark); display: flex; align-items: baseline; gap: 8px; }
.product-single .tab-cols h4 .num { color: var(--primary); font-weight: 800; }
.product-single .tab-cols p { font-size: 13px; line-height: 1.7; color: var(--text); }
.product-single .tab-media { float: right; width: 48%; margin: 0 0 16px 24px; border-radius: var(--radius); overflow: hidden; position: relative; }
.product-single .tab-media img { width: 100%; }
.product-single .tab-media .play { position: absolute; inset: 0; display: grid; place-items: center; }
.product-single .tab-media .play a { width: 60px; height: 60px; border-radius: 50%; background: #fff; color: var(--primary); display: grid; place-items: center; font-size: 20px; box-shadow: 0 5px 14px rgba(0,0,0,.2); }

/* 规格参数表格 */
.product-single .specs-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.product-single .specs-table th, .product-single .specs-table td { padding: 14px 18px; border-bottom: 1px solid var(--border); text-align: left; }
.product-single .specs-table th { width: 180px; background: var(--bg-soft); color: var(--dark); font-weight: 600; }
.product-single .specs-table td { color: var(--text); }
.product-single .specs-table tr:last-child th, .product-single .specs-table tr:last-child td { border-bottom: none; }

/* 暂无评价占位 */
.product-single .reviews-placeholder { text-align: center; padding: 70px 20px; color: var(--light); }
.product-single .reviews-placeholder i { font-size: 52px; margin-bottom: 18px; color: var(--border); }
.product-single .reviews-placeholder h4 { font-size: 17px; color: var(--dark); margin-bottom: 8px; font-weight: 600; }
.product-single .reviews-placeholder p { font-size: 13px; color: var(--text); }

/* ---------- 响应式 ---------- */
@media (max-width: 1200px) {
  .product-single__wrap { grid-template-columns: 1fr; }
  .product-single .product-side { position: static; }
}
@media (max-width: 992px) {
  .product-single .product-main { grid-template-columns: 1fr; gap: 24px; }
  .product-single .tab-cols { grid-template-columns: 1fr; }
  .product-single .tab-media { float: none; width: 100%; margin: 0 0 16px; }
}