/* ═══════════════════════════════════════════════════════════
   疾病百科页样式 · wanhedna.com
   统一医学蓝主题（.biz-yixue）· 类前缀 .ds-（disease）
   ═══════════════════════════════════════════════════════════ */

.ds-page {
  --ink: #0f172a;
  --body: #1f2937;
  --dim: #64748b;
  --mute: #94a3b8;
  --line: #e2e8f0;
  --bg: #fafafa;
  --white: #ffffff;
  --soft: #f8fafc;
  
  /* 医学蓝（疾病页统一主题，和 product 医学页一致）*/
  --primary: #1565C0;
  --primary-d: #0D47A1;
  --primary-l: #E3F2FD;
  --primary-grad: linear-gradient(135deg, #1976D2 0%, #0D47A1 100%);
  --tag-bg: #DBEAFE;
  --tag-ink: #1E40AF;
  
  /* 疾病页特色强调色（提示疾病严重度等）*/
  --warn: #F59E0B;
  --warn-l: #FEF3C7;
  --danger: #DC2626;
  --danger-l: #FEE2E2;
  --success: #10B981;
  --success-l: #D1FAE5;

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

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

/* ─── 图标（和 service.css / product.css 统一规则）─── */
.ds-page svg.ic {
  width: 14px; height: 14px; vertical-align: -2px;
  margin-right: 5px; stroke: currentColor;
  flex-shrink: 0; display: inline-block;
}
.ds-page svg.ic-arr {
  width: 13px; height: 13px; margin-left: 4px; margin-right: 0;
  vertical-align: -1px; transition: transform .2s;
}
.ds-page a:hover svg.ic-arr,
.ds-page .ds-cta-btn:hover svg.ic-arr {
  transform: translateX(3px);
}
.ds-page svg.ic-check {
  width: 12px; height: 12px;
  color: #10b981; margin-left: 3px;
}

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

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

.ds-cat-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;
}
.ds-cat-tag-sep { margin: 0 4px; color: currentColor; opacity: .5; }
.ds-cat-tag-hot {
  margin-left: 8px;
  display: inline-flex; align-items: center; gap: 3px;
  background: var(--warn-l);
  color: var(--warn);
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
}

.ds-h1 {
  font-size: 30px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
  margin: 0 0 6px;
  letter-spacing: -0.3px;
}
.ds-h1-abbr {
  display: inline-block;
  font-size: 18px;
  background: var(--primary-l);
  color: var(--primary-d);
  padding: 3px 10px;
  border-radius: 6px;
  margin-left: 10px;
  vertical-align: middle;
  font-weight: 600;
}
.ds-h1-en {
  color: var(--dim);
  font-size: 15px;
  font-style: italic;
  margin: 0 0 6px;
  font-family: 'DM Sans', sans-serif;
}
.ds-h1-alt {
  color: var(--mute);
  font-size: 13px;
  margin: 0 0 26px;
}

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

.ds-info-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  transition: border-color .2s;
}
.ds-info-card:hover { border-color: var(--primary); }
.ds-info-card.ds-info-primary {
  background: var(--primary-l);
  border-color: var(--primary);
}
.ds-info-label {
  display: flex; align-items: center;
  color: var(--dim);
  font-size: 12px;
  margin-bottom: 6px;
}
.ds-info-value {
  color: var(--ink);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 3px;
  font-family: 'DM Sans', -apple-system, sans-serif;
  letter-spacing: 0.3px;
}
.ds-info-value-small { font-size: 14px; font-weight: 500; line-height: 1.5; font-family: inherit; letter-spacing: 0; }
.ds-info-note { color: var(--mute); font-size: 11px; }

/* 双 CTA */
.ds-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.ds-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;
}
.ds-cta-primary {
  background: var(--primary-grad);
  color: var(--white);
  border: 1px solid var(--primary);
}
.ds-cta-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,.12); }
.ds-cta-line {
  background: var(--white);
  color: var(--ink);
  border: 1px solid var(--line);
}
.ds-cta-line:hover { border-color: var(--primary); color: var(--primary); }

/* Hero 侧栏 */
.ds-hero-aside { display: flex; flex-direction: column; gap: 12px; }
.ds-aside-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
}
.ds-aside-card h4 {
  display: flex; align-items: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 10px;
}
.ds-aside-card h4 svg.ic { width: 16px; height: 16px; color: var(--primary); }
.ds-aside-list {
  margin: 0; padding: 0; list-style: none;
  font-size: 13px; color: var(--body);
}
.ds-aside-list li {
  padding: 5px 0;
  padding-left: 14px;
  position: relative;
  line-height: 1.6;
}
.ds-aside-list li::before {
  content: "";
  position: absolute; left: 0; top: 11px;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--primary);
}
.ds-aside-list li strong { color: var(--ink); font-weight: 600; }
.ds-aside-dim { background: var(--soft); }

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

/* ═══ 模块 2 · 概述 ═══ */
.ds-overview { padding: 40px 0; }
.ds-overview-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px 28px;
}
.ds-para {
  margin: 0 0 14px;
  line-height: 1.85;
  color: var(--body);
  font-size: 15px;
}
.ds-para:last-child { margin-bottom: 0; }
.ds-para strong { color: var(--ink); font-weight: 600; }

/* ═══ 模块 3 · 基因 + 遗传 ═══ */
.ds-gene { padding: 40px 0; background: var(--soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.ds-gene-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 16px;
}
@media (max-width: 768px) { .ds-gene-grid { grid-template-columns: 1fr; } }

.ds-gene-card, .ds-inh-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px 24px;
}
.ds-gene-card h3, .ds-inh-card h3 {
  display: flex; align-items: center;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 14px;
}
.ds-gene-card h3 svg.ic, .ds-inh-card h3 svg.ic {
  width: 18px; height: 18px; color: var(--primary);
}
.ds-gene-dl {
  margin: 0;
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 10px 14px;
  font-size: 14px;
}
.ds-gene-dl dt { color: var(--dim); padding-top: 2px; }
.ds-gene-dl dd { margin: 0; color: var(--body); }
.ds-gene-dl dd strong { color: var(--primary-d); font-family: 'DM Sans', sans-serif; letter-spacing: 0.3px; }
.ds-ext-link {
  display: inline-flex; align-items: center;
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px dashed var(--primary);
}
.ds-ext-link:hover { border-bottom-style: solid; }

.ds-inh-explain p {
  margin: 0 0 10px;
  line-height: 1.8;
  font-size: 14px;
  color: var(--body);
}
.ds-inh-explain strong { color: var(--danger); font-weight: 600; }
.ds-inh-advise {
  padding: 10px 12px;
  background: var(--warn-l);
  border-left: 3px solid var(--warn);
  border-radius: 4px;
  color: var(--body);
  font-size: 13px !important;
}
.ds-inh-more {
  margin-top: 12px !important;
  color: var(--dim) !important;
  font-size: 13px !important;
}

/* ═══ 模块 4 · 症状 ═══ */
.ds-symptoms { padding: 40px 0; }
.ds-symptoms-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
}
@media (max-width: 768px) { .ds-symptoms-grid { grid-template-columns: 1fr; } }
.ds-sym-block {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 22px;
}
.ds-sym-wide { grid-column: 1 / -1; }
.ds-sym-block h3 {
  display: flex; align-items: center;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 10px;
}
.ds-sym-block h3 svg.ic { color: var(--primary); }
.ds-sym-text {
  color: var(--body);
  font-size: 14px;
  line-height: 1.8;
  margin: 0;
}
.ds-symptoms-placeholder {
  background: var(--soft);
  border: 1px dashed var(--line);
  padding: 30px;
  text-align: center;
  border-radius: 10px;
}
.ds-symptoms-placeholder p {
  margin: 0 0 8px;
  color: var(--dim);
  font-size: 14px;
}
.ds-treat-block {
  margin-top: 18px;
  padding: 18px 22px;
  background: var(--primary-l);
  border-left: 3px solid var(--primary);
  border-radius: 4px;
}
.ds-treat-h3 {
  display: flex; align-items: center;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary-d);
  margin: 0 0 10px;
}
.ds-treat-h3 svg.ic { color: var(--primary); width: 16px; height: 16px; }
.ds-treat-block p { margin: 0 0 8px; color: var(--body); font-size: 14px; line-height: 1.7; }
.ds-treat-block p:last-child { margin-bottom: 0; }
.ds-treat-note { color: var(--dim) !important; font-size: 12px !important; padding-top: 8px; border-top: 1px dashed rgba(0,0,0,.08); margin-top: 8px !important; }

/* ═══ 模块 5 · 检测 + 产品 ═══ */
.ds-detection { padding: 40px 0; background: var(--soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.ds-methods-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 22px;
}
.ds-methods-card h3 {
  display: flex; align-items: center;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 12px;
}
.ds-methods-card h3 svg.ic { color: var(--primary); width: 17px; height: 17px; }
.ds-methods-card p { margin: 0 0 10px; line-height: 1.8; font-size: 14px; color: var(--body); }
.ds-methods-list {
  margin: 0; padding: 0; list-style: none;
  font-size: 14px;
}
.ds-methods-list li {
  padding: 6px 0 6px 20px;
  position: relative;
  line-height: 1.7;
  color: var(--body);
}
.ds-methods-list li::before {
  content: "▸";
  position: absolute; left: 0; top: 6px;
  color: var(--primary);
  font-weight: bold;
}
.ds-methods-list li strong { color: var(--ink); font-weight: 600; }
.ds-methods-advise { color: var(--dim) !important; font-size: 13px !important; padding-top: 10px; border-top: 1px dashed rgba(0,0,0,.06); margin-top: 10px !important; }

.ds-related-h3 {
  display: flex; align-items: center;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin: 28px 0 14px;
}
.ds-related-h3 svg.ic { color: var(--warn); width: 20px; height: 20px; }
.ds-related-count { color: var(--dim); font-weight: 400; font-size: 14px; margin-left: 6px; }

.ds-prod-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 900px) { .ds-prod-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .ds-prod-grid { grid-template-columns: 1fr; } }

.ds-prod-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
  text-decoration: none;
  display: block;
  transition: all .15s;
}
.ds-prod-card:hover { border-color: var(--primary); transform: translateY(-1px); box-shadow: 0 4px 10px rgba(0,0,0,.05); }
.ds-prod-header {
  display: flex; align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 8px;
  gap: 8px;
}
.ds-prod-name {
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  flex: 1;
}
.ds-prod-tag {
  flex-shrink: 0;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 500;
  white-space: nowrap;
}
.ds-prod-tag-flagship { background: var(--warn-l); color: var(--warn); }
.ds-prod-tag-mainline { background: var(--primary-l); color: var(--primary-d); }
.ds-prod-meta {
  display: flex; gap: 6px;
  color: var(--dim);
  font-size: 12px;
  margin-bottom: 10px;
}
.ds-prod-price { color: var(--primary-d); font-weight: 700; font-size: 14px; }
.ds-prod-cta {
  display: flex; align-items: center;
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  padding-top: 8px;
  border-top: 1px dashed var(--line);
}

.ds-no-products {
  background: var(--white);
  border: 1px dashed var(--line);
  padding: 30px;
  text-align: center;
  border-radius: 10px;
  color: var(--dim);
}
.ds-no-products p { margin: 0 0 8px; font-size: 14px; }
.ds-no-products-actions { margin-top: 14px; }
.ds-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;
}
.ds-btn-line:hover { border-color: var(--primary); color: var(--primary); }

/* ═══ 模块 6 · 740 城市（和 product-740-cities 同构）═══ */
.ds-cities { padding: 40px 0; }
.ds-cities-search {
  display: flex; align-items: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0 16px;
  margin-bottom: 18px;
}
.ds-cities-search svg.ic { color: var(--mute); }
.ds-cities-search input {
  flex: 1;
  border: 0;
  padding: 12px 8px;
  font-size: 14px;
  outline: none;
  background: transparent;
  color: var(--ink);
}
.ds-cities-tabs {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 18px;
}
.ds-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;
}
.ds-tab:hover { border-color: var(--primary); color: var(--primary); }
.ds-tab-active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.ds-tab-active:hover { color: var(--white); }

.ds-prov-block {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 10px;
}
.ds-prov-h4 {
  display: flex; align-items: center;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 10px;
}
.ds-prov-h4 svg.ic { color: var(--primary); width: 16px; height: 16px; }
.ds-prov-count {
  margin-left: 8px;
  color: var(--dim);
  font-weight: 400;
  font-size: 12px;
}
.ds-city-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.ds-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;
}
.ds-city-chip:hover {
  background: var(--primary-l);
  color: var(--primary-d);
  border-color: var(--primary);
}
.ds-cities-empty {
  background: var(--white);
  border: 1px dashed var(--line);
  padding: 30px;
  text-align: center;
  border-radius: 10px;
  color: var(--dim);
}
.ds-cities-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

/* ═══ 模块 7 · FAQ 空态提示 ═══ */
.ds-faq-empty {
  margin: 30px auto;
  text-align: center;
  padding: 24px;
  color: var(--dim);
  font-size: 14px;
  background: var(--soft);
  border-radius: 10px;
}

/* ═══ 模块 8 · 时效合规 ═══ */
.ds-last-reviewed { padding: 30px 0 50px; }
.ds-compliance {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 22px;
}
.ds-review-line {
  display: flex; align-items: center;
  color: var(--dim);
  font-size: 13px;
  margin: 0 0 10px;
}
.ds-review-line svg.ic { color: var(--primary); }
.ds-disclaimer {
  margin: 0;
  color: var(--mute);
  font-size: 12px;
  line-height: 1.8;
}
.ds-disclaimer strong { color: var(--danger); }

/* ─── 电话链接（统一）─── */
.ds-page .tel-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px dashed var(--primary);
}
.ds-page .tel-link:hover { border-bottom-style: solid; }

/* ═══ List 页（/disease/）═══ */
.ds-list { padding: 30px 0 60px; }
.ds-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;
}
.ds-list-h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 8px;
}
.ds-list-lead {
  color: var(--dim);
  font-size: 14px;
  line-height: 1.7;
  max-width: 800px;
  margin: 0 0 6px;
}
.ds-list-stats {
  font-size: 13px;
  margin-top: 8px;
}
.ds-list-stats strong {
  color: var(--primary-d);
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
}

.ds-list-body { padding: 20px 0; }
.ds-cat-block { margin-bottom: 34px; }
.ds-cat-title {
  display: flex; align-items: center;
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
}
.ds-cat-count {
  margin-left: 10px;
  color: var(--dim);
  font-weight: 400;
  font-size: 13px;
}

.ds-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
@media (max-width: 900px) { .ds-list-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .ds-list-grid { grid-template-columns: 1fr; } }

.ds-list-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  text-decoration: none;
  display: block;
  transition: all .15s;
}
.ds-list-card:hover { border-color: var(--primary); transform: translateY(-1px); box-shadow: 0 4px 10px rgba(0,0,0,.05); }

.ds-list-card-header {
  display: flex; align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}
.ds-list-card-name {
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  flex: 1;
}
.ds-list-card-abbr {
  display: inline-block;
  font-size: 11px;
  color: var(--primary-d);
  background: var(--primary-l);
  padding: 1px 6px;
  border-radius: 4px;
  margin-left: 4px;
  font-weight: 600;
  vertical-align: middle;
  font-family: 'DM Sans', sans-serif;
}
.ds-list-card-hot {
  flex-shrink: 0;
  display: inline-flex; align-items: center; gap: 2px;
  font-size: 10px;
  color: var(--warn);
  background: var(--warn-l);
  padding: 2px 6px;
  border-radius: 8px;
}
.ds-list-card-meta {
  font-size: 12px;
  color: var(--dim);
  margin-bottom: 3px;
}
.ds-list-card-gene {
  font-family: 'DM Sans', sans-serif;
  color: var(--primary-d);
  font-weight: 600;
  letter-spacing: 0.3px;
}
.ds-list-card-inh {}
.ds-list-card-desc {
  color: var(--mute);
  font-size: 12px;
  margin-top: 4px;
  line-height: 1.5;
}