/* ============================================================
   product_class 产品分类页 · EVERGREEN v3
   依赖 theme.css 设计令牌；JS: productclass.js（图片保护/排序）
   ============================================================ */

.pc-main { display: block; background: var(--g-cream); }
.pc-wrap { width: min(var(--g-wrap), calc(100% - 64px)); margin-inline: auto; }
.pc-main :focus-visible { outline: 3px solid var(--g-leaf); outline-offset: 3px; }
.pc-main .g-more { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 700; color: var(--g-green); white-space: nowrap; transition: gap .25s; }
.pc-main .g-more:hover { gap: 14px; text-decoration: underline; text-underline-offset: 5px; }
.pc-main .g-more svg, .pc-main .g-btn svg { width: 17px; height: 17px; }

/* ===== 1. Hero：全幅深色 banner ===== */
.pc-hero {
  position: relative; overflow: hidden; color: #fff;
  background: var(--g-deep) var(--pc-hero-img, url('/images/services/lvzhi-zulin.jpg')) center 42% / cover no-repeat;
}
.pc-hero-veil { position: absolute; inset: 0; pointer-events: none; }
.pc-hero-in { position: relative; z-index: 1; padding: clamp(44px, 5vw, 72px) 0 clamp(34px, 4vw, 52px); }
.pc-crumb { display: flex; align-items: center; gap: 10px; font-size: 13px; color: rgba(255,255,255,.66); margin-bottom: 26px; flex-wrap: wrap; }
.pc-crumb a { color: rgba(255,255,255,.66); text-decoration: none; transition: color .2s; }
.pc-crumb a:hover { color: #fff; }
.pc-crumb [aria-current] { color: rgba(255,255,255,.92); font-weight: 600; }
.pc-hero .g-eyebrow { color: var(--g-leaf); }
.pc-hero .g-eyebrow::before { background: var(--g-leaf); }
.pc-hero h1 {
  color: #fff; font-size: clamp(32px, 4vw, 54px); font-weight: 800;
  letter-spacing: -.03em; margin: 14px 0 16px;
}
.pc-hero-lead { max-width: 62ch; font-size: 15.5px; line-height: 1.9; color: rgba(255,255,255,.82); margin: 0 0 28px; }
.pc-hero-btns { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: clamp(34px, 4vw, 52px); }
.pc-hero .g-btn-primary { background: #fff; color: var(--g-ink); box-shadow: 0 14px 30px -16px rgba(0,0,0,.55); }
.pc-hero .g-btn-primary:hover { background: var(--g-leaf); color: var(--g-deep); }
.pc-hero .g-btn-ghost { color: #fff; border-color: rgba(255,255,255,.5); background: rgba(13,47,34,.25); }
.pc-hero .g-btn-ghost:hover { background: rgba(255,255,255,.14); border-color: #fff; }
.pc-hero-stats {
  display: flex; flex-wrap: wrap; gap: 18px 44px;
  margin: 0; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.18);
}
.pc-hero-stats div { display: flex; align-items: baseline; gap: 12px; }
.pc-hero-stats dd { margin: 0; display: flex; align-items: baseline; gap: 3px; }
.pc-hero-stats b { font-size: clamp(24px, 2.4vw, 34px); font-weight: 800; color: #fff; line-height: 1; letter-spacing: -.02em; }
.pc-hero-stats b span { font-size: .46em; font-weight: 600; color: var(--g-leaf); margin-left: 2px; }
.pc-hero-stats dt { font-size: 12.5px; color: rgba(255,255,255,.62); letter-spacing: .04em; }

/* ===== 2. 工具区：分类导航 + 排序 + 筛选 ===== */
.pc-tools { background: #fff; border-bottom: 1px solid var(--g-line); padding: 22px 0; }
.pc-catnav-head { display: flex; align-items: center; gap: 14px 22px; flex-wrap: wrap; margin-bottom: 14px; }
.pc-catnav-title { font-size: 20px; margin: 0; }
.pc-catnav-count { margin: 0; font-size: 13px; color: var(--g-muted); }
.pc-catnav-count strong { color: var(--g-green); font-size: 15px; }
.pc-catnav-tools { margin-left: auto; display: flex; align-items: center; gap: 16px; }
.pc-toolbar-clear { font-size: 13px; font-weight: 600; color: var(--g-muted); text-decoration: none; }
.pc-toolbar-clear:hover { color: var(--g-green); }
.pc-sort { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--g-muted); }
.pc-sort select {
  height: 38px; padding: 0 32px 0 14px; border: 1px solid var(--g-line); border-radius: 10px;
  background: var(--g-cream) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7c70' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 10px center / 14px;
  appearance: none; -webkit-appearance: none; font-size: 13.5px; font-weight: 600; color: var(--g-text); cursor: pointer;
}
.pc-sort select:focus { outline: 2px solid var(--g-leaf); outline-offset: 1px; }
.pc-catnav-list { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0; padding: 0; }
.pc-catnav-list > li { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.pc-cat-link {
  display: inline-flex; align-items: center; padding: 8px 16px; border-radius: 999px;
  border: 1px solid var(--g-line); background: var(--g-cream);
  font-size: 13.5px; font-weight: 600; color: var(--g-text); text-decoration: none;
  transition: background .2s, color .2s, border-color .2s;
}
.pc-cat-link:hover { border-color: var(--g-leaf); background: var(--g-mint); }
.pc-cat-link.is-active { background: var(--g-ink); border-color: var(--g-ink); color: #fff; }
.pc-cat-sub { padding: 6px 13px; font-size: 12.5px; font-weight: 500; color: var(--g-muted); background: #fff; }

.pc-filters { margin-top: 16px; padding-top: 16px; border-top: 1px dashed var(--g-line); display: grid; gap: 10px; }
.pc-filter-row { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.pc-filter-label { flex-shrink: 0; font-size: 13px; font-weight: 700; color: var(--g-muted); }
.pc-filter-values { display: flex; flex-wrap: wrap; gap: 8px; }
.pc-filter-chip {
  padding: 5px 13px; border-radius: 999px; border: 1px solid var(--g-line);
  font-size: 12.5px; font-weight: 600; color: var(--g-text); text-decoration: none; background: #fff;
  transition: background .2s, color .2s, border-color .2s;
}
.pc-filter-chip:hover { border-color: var(--g-leaf); background: var(--g-mint); }
.pc-filter-chip.is-active { background: var(--g-green); border-color: var(--g-green); color: #fff; }
.pc-filter-clear { font-size: 12.5px; font-weight: 600; color: var(--g-green); text-decoration: none; }
.pc-filter-clear:hover { text-decoration: underline; }

/* ===== 3. 图库网格 ===== */
.pc-sec { padding: clamp(56px, 6vw, 88px) 0; }
.pc-sec-head { margin-bottom: clamp(28px, 3vw, 44px); }
.pc-sec-head h2 { font-size: clamp(24px, 2.6vw, 34px); letter-spacing: -.02em; margin: 12px 0 10px; }
.pc-sec-head > p { margin: 0; font-size: 14.5px; line-height: 1.8; color: var(--g-muted); max-width: 68ch; }
.pc-sec-head .g-eyebrow { color: var(--g-green); }
.pc-sec-head--split { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 48px); align-items: end; }
.pc-sec-head--split h2 { margin: 12px 0 0; }

.pc-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; list-style: none; margin: 0; padding: 0; }
.pc-prod-card {
  background: #fff; border: 1px solid var(--g-line); border-radius: var(--g-r);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .3s var(--g-ease), box-shadow .3s, border-color .3s;
}
.pc-prod-card:hover { transform: translateY(-5px); box-shadow: var(--g-shadow); border-color: var(--g-mint-2); }
.pc-prod-media { position: relative; display: block; aspect-ratio: 2 / 3; overflow: hidden; background: var(--g-mint); }
.pc-prod-media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .55s var(--g-ease); }
.pc-prod-card:hover .pc-prod-media img { transform: scale(1.05); }
.pc-prod-cat {
  position: absolute; top: 12px; left: 12px; z-index: 1;
  padding: 4px 11px; border-radius: 999px; font-size: 11.5px; font-weight: 700;
  background: rgba(255,255,255,.92); color: var(--g-ink); backdrop-filter: blur(4px);
}
.pc-prod-body { display: flex; flex-direction: column; flex: 1; padding: 16px 18px 18px; }
.pc-prod-title { font-size: 16.5px; margin: 0 0 6px; line-height: 1.4; }
.pc-prod-title a { color: var(--g-ink); text-decoration: none; }
.pc-prod-title a:hover { color: var(--g-green); }
.pc-prod-sum {
  margin: 0 0 14px; font-size: 13px; line-height: 1.7; color: var(--g-muted);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.pc-prod-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-top: 12px; border-top: 1px dashed var(--g-line); }
.pc-prod-more { display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; font-weight: 700; color: var(--g-green); text-decoration: none; transition: gap .25s; }
.pc-prod-more:hover { gap: 11px; }
.pc-prod-more svg { width: 15px; height: 15px; }
.pc-prod-consult {
  padding: 7px 16px; border-radius: 999px; border: 1px solid var(--g-line);
  background: var(--g-cream); font-size: 12.5px; font-weight: 700; color: var(--g-ink);
  cursor: pointer; transition: background .2s, border-color .2s, color .2s;
}
.pc-prod-consult:hover { background: var(--g-ink); border-color: var(--g-ink); color: #fff; }

/* 空状态 */
.pc-empty { max-width: 560px; margin: 0 auto; text-align: center; padding: 56px 24px; background: #fff; border: 1px dashed var(--g-mint-2); border-radius: var(--g-r-lg); color: var(--g-muted); }
.pc-empty svg { color: var(--g-leaf); margin-bottom: 14px; }
.pc-empty p { margin: 0 0 8px; font-size: 15px; font-weight: 600; color: var(--g-ink); }
.pc-empty-note { font-size: 13.5px; font-weight: 400 !important; line-height: 1.8; }
.pc-empty-note a { color: var(--g-green); }
.pc-empty .g-btn { margin-top: 14px; }

/* ===== 服务端分页 ===== */
.pc-pager { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 8px; margin-top: clamp(32px, 4vw, 52px); }
.pc-pg {
  min-width: 40px; height: 40px; padding: 0 14px; border-radius: 12px; border: 1px solid var(--g-line);
  background: #fff; font-size: 14px; font-weight: 700; color: var(--g-text); text-decoration: none;
  display: inline-flex; align-items: center; justify-content: center; transition: background .2s, border-color .2s, color .2s;
}
.pc-pg:hover { border-color: var(--g-green); color: var(--g-green); }
.pc-pg.is-active { background: var(--g-ink); border-color: var(--g-ink); color: #fff; }
.pc-pg.is-disabled { opacity: .35; pointer-events: none; }
.pc-pg-dots { color: var(--g-muted); padding: 0 2px; }

/* ===== 4. 分类简介 + 参数卡 ===== */
.pc-intro { background: var(--g-mint); }
.pc-intro-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: clamp(28px, 4vw, 60px); align-items: start; }
.pc-intro-copy h2 { font-size: clamp(24px, 2.6vw, 34px); margin: 14px 0 16px; }
.pc-intro-text { margin: 0 0 18px; font-size: 15px; line-height: 1.95; color: var(--g-text); }
.pc-intro-checks { list-style: none; margin: 0 0 26px; padding: 0; display: grid; gap: 9px; }
.pc-intro-checks li { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; font-weight: 600; color: var(--g-text); }
.pc-intro-checks svg { width: 16px; height: 16px; color: var(--g-green); flex-shrink: 0; }
.pc-intro-links { display: flex; align-items: center; flex-wrap: wrap; gap: 20px; }
.pc-param-card { background: #fff; border: 1px solid var(--g-line); border-radius: var(--g-r-lg); padding: 28px 28px 24px; box-shadow: var(--g-shadow); }
.pc-param-en { display: block; font-size: 11px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--g-leaf); margin-bottom: 6px; }
.pc-param-card h3 { font-size: 19px; margin: 0 0 16px; }
.pc-param-list { list-style: none; margin: 0; padding: 0; }
.pc-param-list li { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding: 11px 0; border-bottom: 1px dashed var(--g-line); font-size: 13.5px; }
.pc-param-list li:last-child { border-bottom: 0; }
.pc-param-list span { color: var(--g-muted); }
.pc-param-list strong { color: var(--g-ink); font-weight: 700; text-align: right; }

/* ===== 5. 摆放建议 ===== */
.pc-care-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; list-style: none; margin: 0; padding: 0; }
.pc-care-card { position: relative; background: #fff; border: 1px solid var(--g-line); border-radius: var(--g-r); padding: 24px 22px 20px; overflow: hidden; transition: transform .3s var(--g-ease), box-shadow .3s; }
.pc-care-card:hover { transform: translateY(-4px); box-shadow: var(--g-shadow); }
.pc-care-no { position: absolute; top: 14px; right: 16px; font-size: 26px; font-weight: 800; color: var(--g-mint-2); line-height: 1; }
.pc-care-card h3 { font-size: 16.5px; margin: 0 0 8px; }
.pc-care-card p { margin: 0; font-size: 13px; line-height: 1.75; color: var(--g-muted); }

.pc-extra { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 28px; }
.pc-extra-card { background: #fff; border: 1px solid var(--g-line); border-radius: var(--g-r); padding: 26px 28px; }
.pc-extra-en { display: block; font-size: 11px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--g-leaf); margin-bottom: 6px; }
.pc-extra-card h3 { font-size: 18px; margin: 0 0 10px; }
.pc-extra-card p { margin: 0; font-size: 13.5px; line-height: 1.85; color: var(--g-muted); }
.nq-adv-img { width: 100%; height: auto; border-radius: 10px; margin: 4px 0 12px; display: block; }

/* ===== 6. 相关分类 ===== */
.pc-link-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; list-style: none; margin: 0; padding: 0; }
.pc-link-grid a {
  display: flex; align-items: center; gap: 10px; padding: 15px 18px;
  background: #fff; border: 1px solid var(--g-line); border-radius: 12px;
  font-size: 14px; font-weight: 600; color: var(--g-ink); text-decoration: none;
  transition: border-color .2s, background .2s, transform .25s var(--g-ease);
}
.pc-link-grid a:hover { border-color: var(--g-leaf); background: var(--g-mint); transform: translateY(-2px); }
.pc-link-mark { width: 8px; height: 8px; border-radius: 50%; background: var(--g-leaf); flex-shrink: 0; }
.pc-link-txt { margin-left: auto; font-size: 12px; font-weight: 500; color: var(--g-muted); white-space: nowrap; }

/* ===== 7. FAQ ===== */
.pc-faq-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.4fr); gap: clamp(28px, 4vw, 64px); align-items: start; }
.pc-faq-intro h2 { font-size: clamp(24px, 2.6vw, 34px); margin: 14px 0 12px; }
.pc-faq-intro p { margin: 0 0 20px; font-size: 14.5px; line-height: 1.85; color: var(--g-muted); }
.pc-faq-list { display: grid; gap: 12px; }
.pc-qa { background: #fff; border: 1px solid var(--g-line); border-radius: var(--g-r); overflow: hidden; }
.pc-qa summary {
  display: flex; align-items: center; gap: 14px; padding: 17px 20px; cursor: pointer;
  font-size: 15px; font-weight: 700; color: var(--g-ink); list-style: none; user-select: none;
}
.pc-qa summary::-webkit-details-marker { display: none; }
.pc-qa-n { flex-shrink: 0; font-size: 12.5px; font-weight: 800; color: var(--g-green); }
.pc-qa-plus { margin-left: auto; position: relative; width: 16px; height: 16px; flex-shrink: 0; }
.pc-qa-plus::before, .pc-qa-plus::after { content: ""; position: absolute; inset: 0; margin: auto; background: var(--g-green); border-radius: 2px; transition: transform .25s; }
.pc-qa-plus::before { width: 16px; height: 2px; }
.pc-qa-plus::after { width: 2px; height: 16px; }
.pc-qa[open] .pc-qa-plus::after { transform: scaleY(0); }
.pc-qa-a { padding: 0 20px 18px 46px; }
.pc-qa-a p { margin: 0 0 10px; font-size: 13.5px; line-height: 1.85; color: var(--g-muted); }
.pc-qa-a a { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; color: var(--g-green); text-decoration: none; }
.pc-qa-a a svg { width: 15px; height: 15px; flex-shrink: 0; }
.pc-qa-a a:hover { text-decoration: underline; }

/* ===== 响应式 ===== */
@media (max-width: 1280px) {
  .pc-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .pc-care-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pc-link-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 992px) {
  .pc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  .pc-intro-grid, .pc-faq-grid, .pc-sec-head--split { grid-template-columns: 1fr; }
  .pc-extra { grid-template-columns: 1fr; }
  .pc-catnav-tools { margin-left: 0; width: 100%; }
}
@media (max-width: 768px) {
  .pc-wrap { width: calc(100% - 36px); }
  .pc-hero-stats { gap: 14px 28px; }
  .pc-link-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .pc-grid { grid-template-columns: 1fr; }
  .pc-care-grid { grid-template-columns: 1fr; }
  .pc-link-grid { grid-template-columns: 1fr; }
  .pc-hero-btns .g-btn { flex: 1 1 100%; justify-content: center; }
  .pc-cta-act { width: 100%; }
  .pc-cta-act .g-btn { flex: 1 1 100%; justify-content: center; }
  .pc-catnav-head { align-items: flex-start; flex-direction: column; gap: 8px; }
  .pc-catnav-tools { margin-left: 0; }
  /* 移动端底部四宫格客服栏已覆盖联系入口，隐藏右侧浮动客服按钮（body 前缀压过 theme.css） */
  body .cs-float { display: none; }
  .pc-hero-stats div { flex-direction: column; gap: 4px; }
}