/* ===== 318-variant product grid (2026-09-27) ===== */
.pw-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
  align-items: start;
}
@media (max-width: 1400px) { .pw-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (max-width: 1100px) { .pw-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; } }
@media (max-width: 820px)  { .pw-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; } }
@media (max-width: 460px)  { .pw-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; } }

.pw-card {
  background: #fff;
  border: 1px solid #dbe6f2;
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow .18s ease, transform .18s ease, border-color .18s ease;
}
.pw-card:hover {
  box-shadow: 0 10px 26px rgba(11, 79, 156, .12);
  border-color: #b9d3ee;
  transform: translateY(-2px);
}
.pw-media {
  position: relative;
  aspect-ratio: 1 / 1;
  background: #fff;
  border-bottom: 1px solid #eef3f9;
}
.pw-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
  padding: 6px;
  box-sizing: border-box;
}
.pw-badge {
  position: absolute;
  left: 8px;
  top: 8px;
  background: rgba(11, 79, 156, .88);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .02em;
  padding: 3px 7px;
  border-radius: 6px;
}
.pw-body { padding: 12px 13px 14px; display: flex; flex-direction: column; gap: 8px; }
.pw-name {
  font-size: 15px;
  line-height: 1.3;
  margin: 0;
  color: #0d2b4e;
  font-weight: 700;
}
.pw-cat { margin: 0; font-size: 11.5px; color: #7d93ab; text-transform: uppercase; letter-spacing: .04em; }

.pw-specs { display: flex; flex-wrap: wrap; gap: 6px; align-content: flex-start; }
.pw-spec {
  flex: 1 1 auto;
  min-width: 62px;
  border: 1px solid #cfe0f2;
  background: #f7fbff;
  border-radius: 9px;
  padding: 6px 7px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.25;
  transition: all .15s ease;
  font-family: inherit;
}
.pw-spec:hover { border-color: #7fb0e2; background: #eef7ff; }
.pw-spec.active {
  border-color: #0b4f9c;
  background: #0b4f9c;
  box-shadow: 0 3px 9px rgba(11, 79, 156, .28);
}
.pw-spec-s { font-size: 13px; font-weight: 700; color: #0d2b4e; }
.pw-spec-p { font-size: 11.5px; color: #2f80d8; font-weight: 600; }
.pw-spec.active .pw-spec-s,
.pw-spec.active .pw-spec-p { color: #fff; }

.pw-foot { margin-top: auto; display: flex; flex-direction: column; gap: 8px; padding-top: 2px; }
.pw-gift {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 3px;
  background: #f3f9ff;
  border: 1px dashed #b6d4f0;
  border-radius: 9px;
  padding: 7px 8px;
}
.pw-box {
  width: 11px;
  height: 11px;
  border-radius: 2.5px;
  border: 1.4px solid #c3d8ec;
  background: #fff;
  display: inline-block;
}
.pw-box.on { background: #0b4f9c; border-color: #0b4f9c; }
.pw-box.free.on { background: #1fa971; border-color: #1fa971; }
.pw-plus { font-size: 11px; color: #7d93ab; font-weight: 700; margin: 0 1px; }
.pw-gift-label {
  flex: 1 1 100%;
  font-size: 11.5px;
  color: #14508f;
  font-weight: 600;
  margin-top: 2px;
}
.pw-gift-label b { color: #1fa971; }

.pw-cta {
  display: block;
  text-align: center;
  background: #0b4f9c;
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 10px;
  border-radius: 9px;
  transition: background .15s ease;
}
.pw-cta:hover { background: #093f7d; }
.pw-empty { color: #55677d; padding: 20px 0; }

@media (max-width: 820px) {
  .pw-name { font-size: 13.5px; }
  .pw-body { padding: 9px 10px 11px; gap: 6px; }
  .pw-spec { min-width: 52px; padding: 5px 5px; }
  .pw-spec-s { font-size: 12px; }
  .pw-spec-p { font-size: 10.5px; }
  .pw-badge { font-size: 10px; padding: 2px 5px; }
  .pw-cta { font-size: 12px; padding: 7px 8px; }
  .pw-gift { padding: 6px; }
  .pw-box { width: 9px; height: 9px; }
  .pw-gift-label { font-size: 10.5px; }
}
.coa-noimg { width: 100%; aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center; background: #f4f8fc; border: 1px dashed #c9d8e8; border-radius: 8px; color: #7d93ab; font-size: 13px; }


/* --- 2026-09-27 产品详情页规格按钮 --- */
.pw-detail-specs { display:flex; flex-wrap:wrap; gap:8px; margin:14px 0 6px; }
.pw-detail-specs .pw-spec {
  font: inherit; font-size:.86rem; font-weight:600; cursor:pointer;
  padding:7px 14px; border-radius:20px; border:1px solid #c9d8e8;
  background:#fff; color:#123a6b; transition:.15s;
}
.pw-detail-specs .pw-spec:hover { border-color:#0a8f5b; color:#0a8f5b; }
.pw-detail-specs .pw-spec.active { background:#0a8f5b; border-color:#0a8f5b; color:#fff; }
.detail-media { display:flex; align-items:flex-start; justify-content:center; background:#fff; border:1px solid #e6eef7; border-radius:16px; padding:22px; }
.detail-media img { width:auto; max-width:100%; max-height:420px; height:auto; object-fit:contain; border-radius:12px; display:block; }


/* --- 2026-09-27 产品详情页 COA 报告预览 --- */
.detail-media-col { display:flex; flex-direction:column; gap:16px; }
.pw-coa-preview {
  background:#fff; border:1px solid #e6eef7; border-radius:16px; padding:16px;
  display:flex; flex-direction:column; gap:10px;
}
.pw-coa-head { display:flex; flex-direction:column; gap:3px; }
.pw-coa-tag { font-size:11px; font-weight:700; letter-spacing:.06em; text-transform:uppercase; color:#0a8f5b; }
.pw-coa-head strong { font-size:15px; color:#0d2b4e; }
.pw-coa-thumb { position:relative; display:block; width:104px; margin:0 auto; border:1px solid #e2ebf5; border-radius:9px; overflow:hidden; background:#fff; cursor:zoom-in; padding:0; transition:box-shadow .15s, border-color .15s, transform .15s; }
.pw-coa-thumb:hover { border-color:#7fb0e2; box-shadow:0 6px 16px rgba(11,79,156,.14); transform:translateY(-2px); }
.pw-coa-thumb img { width:100%; height:136px; object-fit:cover; object-position:top center; display:block; }
.pw-coa-zoom {
  position:absolute; right:8px; bottom:8px; background:rgba(11,79,156,.9); color:#fff;
  font-size:11.5px; font-weight:600; padding:4px 9px; border-radius:7px;
}
.pw-coa-meta { display:grid; grid-template-columns:repeat(2,1fr); gap:6px 14px; }
.pw-coa-meta > div { display:flex; justify-content:space-between; gap:8px; font-size:12.5px; border-bottom:1px dashed #eef3f9; padding-bottom:4px; }
.pw-coa-meta b { color:#7d93ab; font-weight:600; }
.pw-coa-meta span { color:#0d2b4e; font-weight:600; text-align:right; }
.pw-coa-link {
  text-align:center; font-size:13px; font-weight:600; color:#0b4f9c; text-decoration:none;
  border:1px solid #cfe0f2; border-radius:9px; padding:8px; background:#fff; cursor:pointer; font-family:inherit; width:100%;
}
.pw-coa-link:hover { background:#f3f9ff; border-color:#7fb0e2; }

.pw-coa-inline-link { background:none; border:none; padding:0; font:inherit; font-weight:600; color:#0b4f9c; cursor:pointer; text-decoration:underline; }
.pw-coa-inline-link:hover { color:#093f7d; }

/* --- 2026-09-27 详情页：购买按钮上方的 COA 缩略条 --- */
.pw-detail-coa-strip {
  display:flex; align-items:center; gap:14px;
  background:#f7fbff; border:1px solid #dfebf8; border-radius:12px;
  padding:10px 14px; margin:16px 0 4px;
}
.pw-detail-coa-strip .pw-coa-thumb {
  width:66px; margin:0; flex:0 0 auto; border-radius:8px;
}
.pw-detail-coa-strip .pw-coa-thumb img { height:86px; }
.pw-detail-coa-info { display:flex; flex-direction:column; gap:2px; min-width:0; }
.pw-detail-coa-info strong { font-size:14.5px; color:#0d2b4e; }
.pw-detail-coa-sub { font-size:12px; color:#7d93ab; }
.pw-coa-tag { font-size:10.5px; font-weight:700; letter-spacing:.06em; text-transform:uppercase; color:#0a8f5b; }

.pw-code { font-size:.55em; font-weight:600; color:#7d93ab; letter-spacing:.04em; vertical-align:middle; }

/* --- 2026-09-27 卡片双按钮（购买 + 购物车） --- */
.pw-cta-row { display:flex; gap:8px; }
.pw-cta-row .pw-cta { flex:1 1 0; min-width:0; }
.pw-cta-buy { background:#0b4f9c; }
.pw-cta-cart { background:#0a8f5b; border:none; font-family:inherit; cursor:pointer; }
.pw-cta-cart:hover { background:#087a4d; }