/* ═══════════════════════════════════════════════════════════
   产品详情页样式 · wanhedna.com
   V8 色系：亲子 #DC2626 / 医学 #1565C0（决策 D2）
   类前缀 .pr- （product）· 与 .sc- 并行不冲突
   ═══════════════════════════════════════════════════════════ */

/* ─── 设计令牌 · 双业务主题切换（与 service.css 对齐）─── */
.pr-page {
  --ink: #0f172a;
  --body: #1f2937;
  --dim: #64748b;
  --mute: #94a3b8;
  --line: #e2e8f0;
  --bg: #fafafa;
  --white: #ffffff;
  --soft: #f8fafc;

  --qinzi: #DC2626;
  --qinzi-d: #B91C1C;
  --qinzi-l: #FEF2F2;
  --yixue: #1565C0;
  --yixue-d: #0D47A1;
  --yixue-l: #E3F2FD;

  color: var(--body);
  background: var(--bg);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

.pr-page.biz-qinzi {
  --primary: #DC2626;
  --primary-d: #B91C1C;
  --primary-l: #FEF2F2;
  --primary-grad: linear-gradient(135deg, #DC2626 0%, #B91C1C 100%);
  --tag-bg: #FEE2E2;
  --tag-ink: #991B1B;
}

.pr-page.biz-yixue {
  --primary: #1565C0;
  --primary-d: #0D47A1;
  --primary-l: #E3F2FD;
  --primary-grad: linear-gradient(135deg, #1976D2 0%, #0D47A1 100%);
  --tag-bg: #DBEAFE;
  --tag-ink: #1E40AF;
}

.pr-wrap { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ─── SVG 图标规则（复用 service.css 约定）─── */
.pr-page svg.ic {
  width: 14px; height: 14px; vertical-align: -2px;
  margin-right: 5px; stroke: currentColor;
  flex-shrink: 0; display: inline-block;
}
.pr-page svg.ic-arr {
  width: 13px; height: 13px; margin-left: 4px; margin-right: 0;
  vertical-align: -1px; transition: transform .2s;
}
.pr-page a:hover svg.ic-arr,
.pr-page button:hover svg.ic-arr,
.pr-page .pr-cta-btn:hover svg.ic-arr {
  transform: translateX(3px);
}
.pr-page svg.ic-check {
  width: 12px; height: 12px;
  color: #10b981; margin-left: 3px;
}

/* ─── 面包屑 ─── */
.pr-crumb {
  background: var(--white);
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
  font-size: 13px;
  color: var(--dim);
}
.pr-crumb a { color: var(--dim); text-decoration: none; transition: color .15s; }
.pr-crumb a:hover { color: var(--primary); }
.pr-crumb .sep { margin: 0 8px; color: var(--mute); }
.pr-crumb span:last-child { color: var(--ink); font-weight: 500; }

/* ═══ 模块 1 · Hero ═══ */
.pr-hero {
  background: linear-gradient(180deg, var(--white) 0%, var(--soft) 100%);
  padding: 40px 0 50px;
  border-bottom: 1px solid var(--line);
}
.pr-hero-inner {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
}
@media (max-width: 900px) { .pr-hero-inner { grid-template-columns: 1fr; } }

.pr-biz-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--tag-bg);
  color: var(--tag-ink);
  padding: 5px 12px;
  border-radius: 14px;
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 14px;
}
.pr-biz-tag-sep { margin: 0 4px; color: currentColor; opacity: .5; }

.pr-h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
  margin: 0 0 10px;
  letter-spacing: -0.3px;
}
.pr-h1-sub {
  font-size: 15px;
  color: var(--dim);
  margin: 0 0 28px;
  line-height: 1.7;
}

/* 4 格基础信息卡 */
.pr-info-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}
@media (max-width: 700px) { .pr-info-cards { grid-template-columns: repeat(2, 1fr); } }

.pr-info-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  transition: border-color .2s;
}
.pr-info-card:hover { border-color: var(--primary); }
.pr-info-card.pr-info-primary {
  background: var(--primary-l);
  border-color: var(--primary);
}
.pr-info-label {
  display: flex; align-items: center;
  color: var(--dim);
  font-size: 12px;
  margin-bottom: 6px;
}
.pr-info-value {
  color: var(--ink);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 3px;
}
.pr-info-value-small { font-size: 14px; font-weight: 500; line-height: 1.5; }
.pr-info-note { color: var(--mute); font-size: 11px; }
.pr-price-number { color: var(--primary); font-size: 26px; font-weight: 700; }

/* 双 CTA */
.pr-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.pr-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: all .2s;
}
.pr-cta-primary {
  background: var(--primary-grad);
  color: var(--white);
  border: 1px solid var(--primary);
}
.pr-cta-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,.12); }
.pr-cta-line {
  background: var(--white);
  color: var(--ink);
  border: 1px solid var(--line);
}
.pr-cta-line:hover { border-color: var(--primary); color: var(--primary); }

/* Hero 侧栏 */
.pr-hero-aside { display: flex; flex-direction: column; gap: 12px; }
.pr-aside-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
}
.pr-aside-card h4 {
  display: flex; align-items: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 10px;
}
.pr-aside-card h4 svg.ic { width: 16px; height: 16px; color: var(--primary); }
.pr-aside-list {
  margin: 0; padding: 0; list-style: none;
  font-size: 13px; color: var(--body);
}
.pr-aside-list li {
  padding: 4px 0;
  padding-left: 14px;
  position: relative;
  line-height: 1.6;
}
.pr-aside-list li::before {
  content: "";
  position: absolute; left: 0; top: 11px;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--primary);
}
.pr-aside-dim { background: var(--soft); }

/* ═══ 模块 2 · 高密度知识块 ═══ */
.pr-kb { padding: 40px 0; }
.pr-kb-h2 {
  display: flex; align-items: center;
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 6px;
}
.pr-kb-h2 svg.ic { width: 20px; height: 20px; color: var(--primary); margin-right: 8px; }
.pr-kb-sub {
  color: var(--dim);
  font-size: 14px;
  margin: 0 0 20px;
}
.pr-kb-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px 28px;
}
.pr-kb-para {
  margin: 0 0 14px;
  line-height: 1.85;
  color: var(--body);
  font-size: 15px;
}
.pr-kb-para:last-child { margin-bottom: 0; }
.pr-kb-para strong { color: var(--ink); font-weight: 600; }
.pr-kb-datablock {
  background: var(--primary-l);
  padding: 14px 18px;
  border-radius: 8px;
  border-left: 3px solid var(--primary);
}
.pr-kb-datablock em {
  font-style: normal;
  color: var(--primary-d);
  font-weight: 600;
}

/* ═══ Section 通用 ═══ */
.pr-section-h2 {
  display: flex; align-items: center;
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 6px;
}
.pr-section-h2 svg.ic { width: 20px; height: 20px; color: var(--primary); margin-right: 8px; }
.pr-section-sub {
  color: var(--dim);
  font-size: 14px;
  margin: 0 0 22px;
  line-height: 1.7;
}

/* ═══ 模块 3 · 六层信任 ═══ */
.pr-trust { padding: 40px 0; background: var(--soft); border-top: 1px solid var(--line); }
.pr-trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 16px;
}
@media (max-width: 768px) { .pr-trust-grid { grid-template-columns: 1fr; } }

.pr-trust-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px 24px;
  position: relative;
}
.pr-trust-wide { grid-column: 1 / -1; }
.pr-trust-num {
  position: absolute;
  top: 18px; right: 20px;
  color: var(--primary);
  opacity: .15;
  font-size: 44px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -2px;
}
.pr-trust-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 6px;
}
.pr-trust-lead {
  color: var(--dim);
  font-size: 13px;
  margin: 0 0 14px;
  line-height: 1.6;
}
.pr-trust-facts {
  margin: 0; padding: 0; list-style: none;
  font-size: 14px;
  color: var(--body);
}
.pr-trust-facts li {
  padding: 6px 0 6px 20px;
  position: relative;
  line-height: 1.6;
}
.pr-trust-facts li::before {
  content: "✓";
  position: absolute; left: 0; top: 6px;
  color: var(--primary);
  font-weight: bold;
}

/* 流程时间线 */
.pr-timeline {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.pr-timeline-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 18px;
  padding: 14px 0;
  border-left: 2px solid var(--line);
  padding-left: 20px;
  margin-left: 12px;
  position: relative;
}
.pr-timeline-item::before {
  content: "";
  position: absolute;
  left: -7px; top: 22px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--white);
}
.pr-timeline-step {
  display: inline-block;
  background: var(--primary-l);
  color: var(--primary-d);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  height: fit-content;
}
.pr-timeline-content strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
}
.pr-timeline-content p {
  margin: 0;
  color: var(--body);
  font-size: 14px;
  line-height: 1.7;
}

/* ═══ 模块 4 · 740 城市 ═══ */
.pr-cities { padding: 40px 0; }
.pr-cities-search {
  display: flex; align-items: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0 16px;
  margin-bottom: 18px;
}
.pr-cities-search svg.ic { color: var(--mute); }
.pr-cities-search input {
  flex: 1;
  border: 0;
  padding: 12px 8px;
  font-size: 14px;
  outline: none;
  background: transparent;
  color: var(--ink);
}
.pr-cities-tabs {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 18px;
}
.pr-tab {
  background: var(--white);
  border: 1px solid var(--line);
  color: var(--body);
  padding: 7px 14px;
  border-radius: 18px;
  font-size: 13px;
  cursor: pointer;
  transition: all .15s;
}
.pr-tab:hover { border-color: var(--primary); color: var(--primary); }
.pr-tab-active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.pr-tab-active:hover { color: var(--white); }

.pr-prov-block {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 10px;
}
.pr-prov-h4 {
  display: flex; align-items: center;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 10px;
}
.pr-prov-h4 svg.ic { color: var(--primary); width: 16px; height: 16px; }
.pr-prov-count {
  margin-left: 8px;
  color: var(--dim);
  font-weight: 400;
  font-size: 12px;
}

.pr-city-chips {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.pr-city-chip {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--soft);
  color: var(--body);
  padding: 5px 11px;
  border-radius: 6px;
  font-size: 13px;
  text-decoration: none;
  transition: all .15s;
  border: 1px solid transparent;
}
.pr-city-chip:hover {
  background: var(--primary-l);
  color: var(--primary-d);
  border-color: var(--primary);
}
.pr-cities-empty {
  background: var(--white);
  border: 1px dashed var(--line);
  padding: 30px;
  text-align: center;
  border-radius: 10px;
  color: var(--dim);
}
.pr-cities-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

/* ═══ 模块 5 · 相关 ═══ */
.pr-related { padding: 40px 0; background: var(--soft); border-top: 1px solid var(--line); }
.pr-related-block + .pr-related-block { margin-top: 28px; }
.pr-related-h3 {
  display: flex; align-items: center;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 12px;
}
.pr-related-h3 svg.ic { color: var(--primary); width: 18px; height: 18px; }
.pr-related-h3-sub { color: var(--dim); font-weight: 400; font-size: 14px; margin-left: 6px; }
.pr-related-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.pr-related-chip {
  display: inline-flex; align-items: center;
  background: var(--white);
  border: 1px solid var(--line);
  color: var(--body);
  padding: 7px 13px;
  border-radius: 18px;
  font-size: 13px;
  text-decoration: none;
  transition: all .15s;
}
.pr-related-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.pr-sib-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
@media (max-width: 800px) { .pr-sib-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 500px) { .pr-sib-grid { grid-template-columns: 1fr; } }
.pr-sib-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  text-decoration: none;
  display: block;
  transition: all .15s;
}
.pr-sib-card:hover { border-color: var(--primary); transform: translateY(-1px); }
.pr-sib-name {
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 6px;
}
.pr-sib-meta { color: var(--dim); font-size: 12px; margin-bottom: 3px; }
.pr-sib-price { color: var(--primary); font-weight: 600; }
.pr-sib-method { color: var(--mute); font-size: 11px; }

.pr-related-more { margin-top: 14px; text-align: right; }
.pr-related-link {
  color: var(--primary);
  text-decoration: none;
  font-size: 13px;
  display: inline-flex; align-items: center;
}

.pr-related-sp { padding: 18px 22px; background: var(--white); border: 1px solid var(--line); border-radius: 12px; }
.pr-related-text { color: var(--body); font-size: 14px; line-height: 1.8; margin: 0 0 12px; }
.pr-related-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.pr-btn-line {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 14px;
  background: var(--white);
  border: 1px solid var(--line);
  color: var(--body);
  border-radius: 6px;
  font-size: 13px;
  text-decoration: none;
  transition: all .15s;
}
.pr-btn-line:hover { border-color: var(--primary); color: var(--primary); }

/* ═══ 模块 6（FAQ）复用 product_faq_section.html 自己的样式 ═══ */

/* ═══ 模块 7 · 时效与合规 ═══ */
.pr-last-reviewed { padding: 30px 0 50px; }
.pr-compliance {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 22px;
}
.pr-review-line {
  display: flex; align-items: center;
  color: var(--dim);
  font-size: 13px;
  margin: 0 0 10px;
}
.pr-review-line svg.ic { color: var(--primary); }
.pr-disclaimer {
  margin: 0;
  color: var(--mute);
  font-size: 12px;
  line-height: 1.8;
}

/* 电话链接 */
.pr-page .tel-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px dashed var(--primary);
}
.pr-page .tel-link:hover { border-bottom-style: solid; }

/* ═══ 列表页（list.html）═══ */
.pr-list { padding: 30px 0 60px; }
.pr-list-hero {
  background: linear-gradient(180deg, var(--white) 0%, var(--soft) 100%);
  padding: 40px 0 30px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 30px;
}
.pr-list-h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 8px;
}
.pr-list-lead {
  color: var(--dim);
  font-size: 14px;
  line-height: 1.7;
  max-width: 700px;
}
.pr-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 900px) { .pr-list-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .pr-list-grid { grid-template-columns: 1fr; } }

.pr-list-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
  text-decoration: none;
  display: block;
  transition: all .15s;
}
.pr-list-card:hover { border-color: #1565C0; transform: translateY(-1px); box-shadow: 0 4px 10px rgba(0,0,0,.05); }
.pr-list-card-name {
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
}
.pr-list-card-meta {
  display: flex; gap: 8px;
  color: var(--dim);
  font-size: 12px;
  margin-bottom: 8px;
}
.pr-list-card-price { color: #DC2626; font-weight: 600; font-size: 14px; }
.pr-list-card-desc {
  color: var(--body);
  font-size: 13px;
  line-height: 1.6;
  opacity: .75;
}

/* 大类/子类分组（列表页）*/
.pr-cat-block { margin-bottom: 28px; }
.pr-cat-title {
  display: flex; align-items: center;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--line);
}
.pr-cat-title-count {
  margin-left: 8px;
  color: var(--dim);
  font-weight: 400;
  font-size: 13px;
}

/* FAQ 容器统一用 pr-wrap 宽度 */
.pr-page .prod-faq-sec { max-width: 1200px; margin: 0 auto 40px; padding: 30px 20px; }
.pr-page .prod-faq-h2 { font-size: 22px; font-weight: 600; color: #0f172a; margin: 0 0 6px; }
.pr-page .prod-faq-sub { color: #64748b; font-size: 14px; margin: 0 0 20px; }
.pr-page .prod-faqs { display: flex; flex-direction: column; gap: 0; background: #fff; border: 1px solid #e2e8f0; border-radius: 12px; }
.pr-page .prod-faq { border-bottom: 1px solid #e2e8f0; }
.pr-page .prod-faq:last-child { border-bottom: 0; }
.pr-page .prod-faq-q { display: flex; align-items: center; padding: 16px 22px; cursor: pointer; list-style: none; font-weight: 500; color: #0f172a; font-size: 15px; }
.pr-page .prod-faq-q::-webkit-details-marker { display: none; }
.pr-page .prod-faq-q svg { width: 16px; height: 16px; color: #1565C0; flex-shrink: 0; margin-right: 10px; transition: transform .2s; }
.pr-page .prod-faq[open] .prod-faq-q svg { transform: rotate(180deg); }
.pr-page .prod-faq-a { padding: 0 22px 16px 48px; color: #1f2937; font-size: 14px; line-height: 1.8; }
.pr-page .prod-faq-cta { padding: 16px 22px; text-align: center; color: #64748b; font-size: 13px; background: #f8fafc; border-radius: 0 0 12px 12px; }
.pr-page .prod-faq-cta-phone { color: #DC2626; font-weight: 600; border-bottom: 1px dashed #DC2626; }
.pr-page.biz-yixue .prod-faq-cta-phone { color: #1565C0; border-bottom-color: #1565C0; }