/* 产品库 CSS 变量：抽屉/遮罩在 .library-page 外，需挂到 :root */
:root {
  --lib-accent: #eb6120;
  --lib-ink: #1a1a1a;
  --lib-muted: #6b7280;
  --lib-line: #e8e4df;
  --lib-bg: #f7f4f0;
  --lib-card: #fff;
}

/* 产品库无 Hero：顶部导航用黑底，避免透明导航叠在白底上（白字不可见） */
body:has(.library-page) .site-header:not(.scrolled) {
  background: #000;
}

body:has(.library-page) .site-header:not(.scrolled) .nav-menu a {
  color: #fff;
}

body:has(.library-page) .site-header:not(.scrolled) .nav-menu a:hover,
body:has(.library-page) .site-header:not(.scrolled) .nav-menu a.active {
  color: #f7941d;
}

body:has(.library-page) .site-header:not(.scrolled) .search-btn,
body:has(.library-page) .site-header:not(.scrolled) .mobile-menu-btn {
  color: #fff;
}

body:has(.library-page) .site-header:not(.scrolled) .search-btn svg,
body:has(.library-page) .site-header:not(.scrolled) .mobile-menu-btn svg {
  stroke: #fff;
  color: #fff;
}

/* 产品库前台样式 */
.library-page {
  max-width: 1280px;
  margin: 0 auto;
  padding: 96px 20px 64px;
}

.library-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.library-toolbar h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--lib-ink);
  margin: 0;
}

.library-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.lib-lang {
  display: inline-flex;
  border: 1px solid var(--lib-line);
  border-radius: 999px;
  overflow: hidden;
  background: #fff;
}

.lib-lang button,
.lib-lang a.lib-lang-link {
  border: 0;
  background: transparent;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 13px;
  color: var(--lib-muted);
  text-decoration: none;
  display: inline-block;
  line-height: 1.2;
}

.lib-lang button.active,
.lib-lang a.lib-lang-link.active {
  background: var(--lib-ink);
  color: #fff;
}

.lib-side a {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--lib-ink);
  font-size: 14px;
  text-decoration: none;
  box-sizing: border-box;
}

.lib-side a.active,
.lib-side a:hover {
  background: #fff1e8;
  color: var(--lib-accent);
}

.lib-pager a {
  min-width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--lib-line);
  background: #fff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--lib-ink);
  padding: 0 8px;
  box-sizing: border-box;
}

.lib-pager a.active {
  background: var(--lib-ink);
  color: #fff;
  border-color: var(--lib-ink);
}

.lib-btn {
  border: 0;
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 14px;
  cursor: pointer;
  transition: .15s ease;
}

.lib-btn-primary {
  background: var(--lib-accent, #eb6120);
  color: #fff !important;
}

.lib-btn-primary:hover { filter: brightness(1.05); }

.lib-btn-ghost {
  background: #fff;
  border: 1px solid var(--lib-line);
  color: var(--lib-ink);
}

.lib-btn-block { width: 100%; }

.lib-icon-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #fff;
  border: 1px solid var(--lib-line);
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
  text-decoration: none;
  color: var(--lib-ink);
  font-size: 14px;
}

.lib-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  background: var(--lib-accent);
  color: #fff;
  font-size: 11px;
  line-height: 18px;
  text-align: center;
  padding: 0 4px;
}

.library-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
}

.lib-side {
  background: var(--lib-card);
  border: 1px solid var(--lib-line);
  border-radius: 14px;
  padding: 12px;
  height: fit-content;
  position: sticky;
  top: 88px;
}

.lib-side button {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--lib-ink);
  font-size: 14px;
}

.lib-side button.active,
.lib-side button:hover {
  background: #fff1e8;
  color: var(--lib-accent);
}

.lib-search {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.lib-search input {
  flex: 1;
  border: 1px solid var(--lib-line);
  border-radius: 10px;
  padding: 11px 14px;
  font-size: 14px;
}

.lib-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.lib-card {
  background: var(--lib-card);
  border: 1px solid var(--lib-line);
  border-radius: 14px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: box-shadow .2s ease, transform .2s ease;
}

.lib-card:hover {
  box-shadow: 0 10px 28px rgba(0,0,0,.08);
  transform: translateY(-2px);
}

.lib-card .thumb {
  aspect-ratio: 1;
  background: var(--lib-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.lib-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lib-card .body {
  padding: 12px 14px 14px;
}

.lib-card .title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  min-height: 2.8em;
  margin: 0 0 8px;
}

.lib-card .price {
  color: var(--lib-accent);
  font-weight: 700;
  font-size: 16px;
}

.lib-muted { color: var(--lib-muted); font-size: 13px; }

.lib-detail {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 32px;
}

@media (max-width: 900px) {
  .lib-detail { grid-template-columns: 1fr; }
}

.lib-gallery .main {
  border-radius: 16px;
  overflow: hidden;
  background: var(--lib-bg);
  aspect-ratio: 1;
}

.lib-gallery .main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lib-thumbs {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  overflow-x: auto;
}

.lib-thumbs button {
  width: 64px;
  height: 64px;
  border-radius: 8px;
  border: 1px solid var(--lib-line);
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
}

.lib-thumbs button.active { border-color: var(--lib-accent); }

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

.lib-sku-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 20px;
}

.lib-sku-list button {
  border: 1px solid var(--lib-line);
  background: #fff;
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 13px;
}

.lib-sku-list button.active {
  border-color: var(--lib-accent);
  color: var(--lib-accent);
  background: #fff1e8;
}

.lib-qty {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--lib-line);
  border-radius: 8px;
  overflow: hidden;
}

.lib-qty button {
  width: 36px;
  height: 36px;
  border: 0;
  background: #f5f5f5;
  cursor: pointer;
}

.lib-qty input {
  width: 56px;
  height: 36px;
  border: 0;
  text-align: center;
}

.lib-cart-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 14px; overflow: hidden; }
.lib-cart-table th, .lib-cart-table td { padding: 14px; border-bottom: 1px solid var(--lib-line); text-align: left; vertical-align: middle; }
.lib-cart-item { display: flex; gap: 12px; align-items: center; }
.lib-cart-item img { width: 64px; height: 64px; object-fit: cover; border-radius: 8px; background: var(--lib-bg); }

.lib-form {
  max-width: 560px;
  background: #fff;
  border: 1px solid var(--lib-line);
  border-radius: 14px;
  padding: 24px;
}

.lib-form label { display: block; margin-bottom: 14px; font-size: 13px; color: var(--lib-muted); }
.lib-form input, .lib-form textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  border: 1px solid var(--lib-line);
  border-radius: 10px;
  padding: 11px 12px;
  font-size: 14px;
}

/* AI 面板（需高于 .site-header 的 z-index:1000，避免顶栏遮挡） */
.lib-drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.35);
  z-index: 2000;
  display: none;
}
.lib-drawer-mask.show { display: block; }

.lib-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(420px, 100%);
  height: 100%;
  max-height: 100vh;
  max-height: 100dvh;
  background: #fff;
  z-index: 2001;
  transform: translateX(100%);
  transition: transform .25s ease;
  display: flex;
  flex-direction: column;
  box-shadow: -8px 0 30px rgba(0,0,0,.12);
  box-sizing: border-box;
}
.lib-drawer.show { transform: translateX(0); }

.lib-drawer-hd {
  flex-shrink: 0;
  padding: 18px 20px;
  border-bottom: 1px solid var(--lib-line);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.lib-drawer-bd {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  padding: 16px 20px;
}
.lib-drawer-ft {
  flex-shrink: 0;
  padding: 16px 20px;
  border-top: 1px solid var(--lib-line);
  background: #fff;
}

.lib-drawer-bd textarea#lib-ai-query {
  display: block;
  width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--lib-line);
  border-radius: 10px;
  padding: 11px 12px;
  font-size: 14px;
  resize: vertical;
  min-height: 96px;
  max-height: 40vh;
}

/* AI 打开时锁定页面滚动（抽屉内可滚） */
body.lib-scroll-lock {
  position: fixed;
  left: 0;
  right: 0;
  width: 100%;
  overflow: hidden;
}
html:has(body.lib-scroll-lock) {
  overflow: hidden;
}

.lib-ai-results { display: flex; flex-direction: column; gap: 12px; margin-top: 14px; }
.lib-ai-card {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 10px;
  border: 1px solid var(--lib-line);
  border-radius: 12px;
  padding: 10px;
}
.lib-ai-card img { width: 72px; height: 72px; object-fit: cover; border-radius: 8px; background: var(--lib-bg); }
.lib-ai-card .reason { font-size: 12px; color: var(--lib-muted); margin: 4px 0 8px; }

/* 支付弹窗 */
.lib-modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.lib-modal {
  width: min(520px, 100%);
  background: #fff;
  border-radius: 16px;
  padding: 28px 24px 24px;
  position: relative;
  box-shadow: 0 20px 50px rgba(0,0,0,.18);
}
.lib-modal-close {
  position: absolute;
  right: 14px;
  top: 10px;
  border: 0;
  background: transparent;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  color: #999;
}
.lib-modal-title { margin: 0 0 10px; font-size: 22px; }
.lib-modal-msg { margin: 0 0 16px; color: var(--lib-ink); line-height: 1.6; }
.lib-pay-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  background: var(--lib-bg);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 16px;
  font-size: 13px;
}
.lib-pay-meta span { display: block; color: var(--lib-muted); margin-bottom: 4px; }
.lib-pay-actions {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 16px;
  margin-bottom: 12px;
  align-items: start;
}
.lib-pay-actions .lib-pay-wechat { text-align: center; }
@media (max-width: 560px) {
  .lib-pay-actions, .lib-pay-meta { grid-template-columns: 1fr; }
}
.lib-pay-label { font-size: 12px; color: var(--lib-muted); margin-bottom: 8px; text-transform: uppercase; letter-spacing: .04em; }
.lib-pay-email-link { display: block; word-break: break-all; color: var(--lib-accent); margin-bottom: 10px; font-weight: 600; }
.lib-pay-qr { width: 140px; height: 140px; object-fit: contain; background: #fff; border: 1px solid var(--lib-line); border-radius: 10px; }
.lib-pay-qr-lg { width: 220px; height: 220px; display: block; margin: 0 auto; }
.lib-pay-wechat-native { text-align: center; margin-bottom: 12px; }
.lib-pay-scan-tip { margin: 12px 0 4px; font-weight: 600; color: var(--lib-ink); }
.lib-pay-waiting { margin: 0 0 8px; }
.lib-pay-hint { margin: 0 0 16px; }

.lib-toast {
  position: fixed;
  left: 50%;
  bottom: 40px;
  transform: translateX(-50%) translateY(20px);
  background: rgba(0,0,0,.82);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  opacity: 0;
  transition: .25s ease;
  z-index: 120;
}
.lib-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.lib-empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--lib-muted);
}

.lib-pager {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 24px;
}
.lib-pager button {
  min-width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--lib-line);
  background: #fff;
  cursor: pointer;
}
.lib-pager button.active {
  background: var(--lib-ink);
  color: #fff;
  border-color: var(--lib-ink);
}

/* ========== 移动端适配（须放在基础样式之后） ========== */
@media (max-width: 900px) {
  .library-layout { grid-template-columns: 1fr; gap: 14px; }
  .library-page { padding: 72px 14px 48px; }

  .library-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-bottom: 14px;
  }

  .library-toolbar h1 {
    font-size: 22px;
  }

  .library-actions {
    gap: 8px;
  }

  .library-actions .lib-btn,
  .library-actions .lib-icon-btn,
  .lib-lang button,
  .lib-lang a.lib-lang-link {
    padding: 8px 12px;
    font-size: 13px;
  }

  .lib-search {
    margin-bottom: 12px;
  }

  .lib-search input {
    min-width: 0;
    font-size: 16px; /* 避免 iOS 聚焦放大 */
    padding: 10px 12px;
  }

  .lib-search .lib-btn {
    flex-shrink: 0;
    padding: 10px 14px;
  }

  /* 分类：横向滑动芯片；取消 sticky，避免滚动后盖住商品 */
  .lib-side {
    position: static;
    top: auto;
    display: flex;
    flex-wrap: nowrap;
    gap: 8px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 10px;
    border-radius: 12px;
  }

  .lib-side::-webkit-scrollbar {
    display: none;
  }

  .lib-side a,
  .lib-side button {
    display: inline-flex;
    align-items: center;
    width: auto;
    flex: 0 0 auto;
    white-space: nowrap;
    padding: 8px 12px;
    font-size: 13px;
  }

  .lib-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .lib-card {
    border-radius: 12px;
  }

  .lib-card .body {
    padding: 10px 10px 12px;
  }

  .lib-card .title {
    font-size: 13px;
    min-height: 2.6em;
    margin-bottom: 6px;
  }

  .lib-card .price {
    font-size: 15px;
  }

  .lib-pager {
    flex-wrap: wrap;
    gap: 6px;
  }

  .lib-pager a,
  .lib-pager button {
    min-width: 32px;
    height: 32px;
    font-size: 13px;
  }

  /* 购物车表格：卡片化 */
  .lib-cart-table,
  .lib-cart-table thead,
  .lib-cart-table tbody,
  .lib-cart-table th,
  .lib-cart-table td,
  .lib-cart-table tr {
    display: block;
  }

  .lib-cart-table thead {
    display: none;
  }

  .lib-cart-table tr {
    border-bottom: 1px solid var(--lib-line);
    padding: 12px;
  }

  .lib-cart-table td {
    border: 0;
    padding: 6px 0;
  }

  .lib-cart-item img {
    width: 56px;
    height: 56px;
  }

  .lib-form {
    padding: 16px;
    border-radius: 12px;
  }

  .lib-form input,
  .lib-form textarea {
    font-size: 16px;
  }

  .lib-detail h1 {
    font-size: 22px !important;
  }

  .lib-drawer-bd textarea#lib-ai-query {
    font-size: 16px;
  }
}

@media (max-width: 380px) {
  .library-page { padding-left: 12px; padding-right: 12px; }
  .lib-grid { gap: 8px; }
  .lib-card .title { font-size: 12px; }
}