/* ================= 产品中心 / 产品详情 / 采购车 =================
   仅依赖 theme.css 与 site.css 的全局变量，跟随配色主题与深浅色模式自动适配 */

/* ---------- 筛选栏 ---------- */
.shop-filter {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 24px;
}

.shop-filter select,
.shop-filter input[type="text"] {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--ink);
  font-size: 15px;
  width: 180px;
}

.shop-filter input[type="text"] { flex: 1; min-width: 180px; }

/* ---------- 产品卡片 ---------- */
.shop-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(4, 1fr);
}

.shop-card {
  background: var(--card);
  border: 1px solid var(--card-line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
  display: flex;
  flex-direction: column;
}

.shop-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }

.shop-card__img {
  position: relative;
  padding-top: 72%;
  background: var(--bg-warm);
  overflow: hidden;
}

.shop-card__img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s;
}

.shop-card:hover .shop-card__img img { transform: scale(1.05); }

.shop-card__body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.shop-card__title {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 小字号副信息用 --ink-sub 而非 --muted：--muted 在白底上对比度不足 3:1，正文级别信息读不清 */
.shop-card__spec { font-size: 13px; color: var(--ink-sub); }

.shop-card__price {
  font-size: 21px;
  font-weight: 700;
  color: var(--red);
}

.shop-card__price small { font-size: 13px; font-weight: 400; color: var(--ink-sub); }

.shop-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--ink-sub);
  gap: 8px;
}

.shop-card__actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
  padding-top: 6px;
}

.shop-card__actions .btn { flex: 1; padding: 9px 8px; font-size: 14px; }

/* 公益捐赠角标 */
.donate-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--tag-green-bg);
  color: var(--green);
}

.shop-card__donate {
  position: absolute;
  left: 10px;
  top: 10px;
}

/* ---------- 数量步进器 ---------- */
.qty {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--input-bg);
}

.qty button {
  width: 38px;
  height: 38px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 18px;
  cursor: pointer;
}

.qty button:hover { background: var(--bg-warm); }

.qty input {
  width: 56px;
  height: 38px;
  border: 0;
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  text-align: center;
  background: transparent;
  color: var(--ink);
  font-size: 15px;
}

/* ---------- 产品详情 ---------- */
.detail-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: start;
}

.gallery__main {
  border: 1px solid var(--card-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-warm);
  aspect-ratio: 4 / 3;
}

.gallery__main img { width: 100%; height: 100%; object-fit: cover; }

.gallery__thumbs {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.gallery__thumbs img {
  width: 76px;
  height: 76px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
}

.gallery__thumbs img.is-active { border-color: var(--orange); }

.detail-price {
  background: var(--grad-soft);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 16px 0;
}

.detail-price strong { color: var(--red); font-size: 30px; }
.detail-price small { color: var(--ink-sub); font-size: 14px; }

.detail-rows { display: grid; gap: 10px; margin: 16px 0; }

.detail-rows div { display: flex; gap: 10px; font-size: 15px; }
.detail-rows span:first-child { width: 84px; color: var(--ink-sub); flex: none; }

.detail-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 18px; }

/* 富文本详情：占满两列，排版沿用新闻详情的阅读宽度 */
.detail-content { grid-column: 1 / -1; margin-top: 12px; }
.detail-content h3 { font-size: 20px; margin: 0 0 10px; }

.shop-rich-text { color: var(--ink-soft); line-height: 1.9; font-size: 16px; }
.shop-rich-text p { margin: 0 0 12px; }
.shop-rich-text img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }
.shop-rich-text h1, .shop-rich-text h2, .shop-rich-text h3 { color: var(--ink); margin: 18px 0 10px; }
.shop-rich-text ul { padding-left: 22px; }

/* ---------- 采购车 ---------- */
/* 列表宽、汇总窄的两栏；≤1023px 直接单列，否则每行「图/信息/数量/金额/删除」
   五列会被挤进 400px 宽度里，数量框和删除按钮会缩成一团 */
.cart-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 1fr);
  gap: 28px;
  align-items: start;
}

.cart-row {
  display: grid;
  grid-template-columns: 96px 1fr auto auto auto;
  gap: 16px;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.cart-row__img {
  width: 96px;
  height: 72px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--bg-warm);
}

.cart-sum {
  background: var(--card);
  border: 1px solid var(--card-line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  position: sticky;
  top: 88px;
}

/* 与采购车汇总卡同款式，但用于页面底部整宽卡片时不吸顶 */
.cart-sum--plain { position: static; }

.cart-sum__row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 15px;
  color: var(--ink-soft);
}

.cart-sum__row--total { font-size: 19px; color: var(--ink); font-weight: 700; border-top: 1px solid var(--line); margin-top: 8px; padding-top: 12px; }
.cart-sum__row--donate strong { color: var(--red); }
.cart-sum__row--settle strong { color: var(--green); }

/* ---------- 下单表单 ---------- */
.order-form-grid { display: grid; gap: 14px; grid-template-columns: repeat(2, 1fr); }

.order-items {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px;
  max-height: 220px;
  overflow: auto;
  background: var(--bg-warm);
}

.order-items__row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 0;
  font-size: 14px;
  border-bottom: 1px dashed var(--line);
}

.order-items__row:last-child { border-bottom: 0; }

/* ---------- 下单弹窗 ---------- */
.pw-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .55);
  z-index: 998;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow: auto;
}

.pw-modal__box {
  background: var(--card);
  border-radius: var(--radius);
  width: min(720px, 100%);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  /* 头/身/脚三段各自滚动，圆角才不会被内部内容顶破 */
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .28);
}

.pw-modal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}

.pw-modal__head h3 { margin: 0; font-size: 19px; }

.pw-modal__close {
  border: 0;
  background: transparent;
  font-size: 26px;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
}

.pw-modal__body { padding: 20px; overflow: auto; }

.pw-modal__foot {
  padding: 14px 20px;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1199px) {
  .shop-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1023px) {
  .cart-layout { grid-template-columns: 1fr; }
  .cart-layout .cart-sum { position: static; }
}

@media (max-width: 767px) {
  .shop-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .detail-wrap { grid-template-columns: 1fr; gap: 20px; }
  /* 五列在手机上放不下：改为「图 + 信息 / 数量 + 金额 / 删除」的三段布局，
     图片纵向跨两行，避免数量框与删除按钮被压进 72px 的窄列里 */
  .cart-row { grid-template-columns: 72px 1fr auto; gap: 10px 12px; }
  .cart-row__img { grid-row: span 2; width: 72px; height: 56px; }
  .cart-row__info { grid-column: 2 / 4; }
  .cart-row__qty { grid-column: 2; }
  .cart-row__amount { grid-column: 3; text-align: right; }
  .cart-row__del { grid-column: 3; }
  .cart-sum { position: static; }
  .shop-filter select, .shop-filter input[type="text"] { width: 100%; flex: none; }
  /* 按钮撑满整行，避免「筛选」与「采购车」在窄屏上挤成两半 */
  .shop-filter .btn { flex: 1; min-width: 120px; }
  .order-form-grid { grid-template-columns: 1fr; }
  .detail-actions .btn { flex: 1 1 100%; }
}

/* 小屏双列卡片只剩 ~150px 宽，两个并排按钮会把「加入采购车」挤断行，改为上下排列 */
@media (max-width: 480px) {
  .shop-grid { gap: 12px; }
  .shop-card__body { padding: 12px; }
  .shop-card__actions { flex-direction: column; }
  .shop-card__actions .btn { width: 100%; }
}