/* ============================================================
   宠物医用产品官网 - 专业医疗风
   占位品牌名：宠安医疗（可全文替换）
   ============================================================ */
:root {
  --primary: #0a6ebd;        /* 医疗蓝 */
  --primary-dark: #085a9c;
  --accent: #0e9488;         /* 辅助青绿 */
  --bg-light: #f5f9fc;
  --text-main: #1f2d3d;
  --text-sub: #5b6b7c;
  --border: #e3edf5;
  --white: #ffffff;
  --shadow: 0 4px 20px rgba(10, 110, 189, 0.08);
  --radius: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-main);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; transition: color .2s; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-bar {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 700; color: var(--primary); }
.logo-mark {
  width: 40px; height: 40px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 20px;
}
.logo small { font-size: 12px; font-weight: 400; color: var(--text-sub); margin-left: 6px; letter-spacing: 1px; }

.nav-links { display: flex; gap: 8px; }
.nav-links a {
  padding: 8px 16px; border-radius: 8px;
  font-size: 15px; color: var(--text-main); font-weight: 500;
}
.nav-links a:hover { color: var(--primary); background: var(--bg-light); }
.nav-links a.active { color: var(--primary); background: var(--bg-light); font-weight: 600; }

.nav-toggle { display: none; background: none; border: none; font-size: 26px; color: var(--primary); cursor: pointer; }

/* ---------- Hero 首屏 ---------- */
.hero {
  background: linear-gradient(135deg, #eaf4fb 0%, #f2fbf9 100%);
  padding: 90px 0 100px;
  overflow: hidden;
}
.hero-inner { display: flex; align-items: center; gap: 48px; }
.hero-text { flex: 1.1; }
.hero-text .tag {
  display: inline-block; padding: 6px 14px; border-radius: 999px;
  background: rgba(10,110,189,.1); color: var(--primary);
  font-size: 14px; font-weight: 600; margin-bottom: 20px;
}
.hero-text h1 { font-size: 42px; line-height: 1.3; margin-bottom: 18px; }
.hero-text h1 span { color: var(--primary); }
.hero-text p { font-size: 17px; color: var(--text-sub); margin-bottom: 32px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-block; padding: 13px 30px; border-radius: 10px;
  font-size: 16px; font-weight: 600; cursor: pointer; border: none;
  transition: transform .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 16px rgba(10,110,189,.3); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }

.hero-visual {
  flex: 0.9; height: 360px; border-radius: 20px;
  background: linear-gradient(150deg, var(--primary) 0%, var(--accent) 100%);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 20px 50px rgba(10,110,189,.25);
  position: relative; overflow: hidden;
}
.hero-visual svg { width: 65%; height: auto; }

/* ---------- 通用区块 ---------- */
.section { padding: 80px 0; }
.section.alt { background: var(--bg-light); }
.section-head { text-align: center; margin-bottom: 50px; }
.section-head .sub { color: var(--accent); font-weight: 600; letter-spacing: 3px; font-size: 14px; text-transform: uppercase; }
.section-head h2 { font-size: 32px; margin: 10px 0 12px; }
.section-head p { color: var(--text-sub); max-width: 640px; margin: 0 auto; }

/* ---------- 产品分类卡片 ---------- */
.grid { display: grid; gap: 24px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--white); border-radius: var(--radius);
  border: 1px solid var(--border); padding: 32px 26px;
  transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.card-icon {
  width: 56px; height: 56px; border-radius: 14px; margin-bottom: 20px;
  background: rgba(10,110,189,.08); color: var(--primary);
  display: flex; align-items: center; justify-content: center; font-size: 28px;
}
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--text-sub); }

/* ---------- 数据条 ---------- */
.stats { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 24px; text-align: center; }
.stat-item .num { font-size: 40px; font-weight: 800; color: var(--primary); }
.stat-item .num small { font-size: 18px; }
.stat-item .label { color: var(--text-sub); font-size: 15px; margin-top: 4px; }

/* ---------- 产品页 ---------- */
.filter-bar { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-bottom: 40px; }
.filter-btn {
  padding: 9px 22px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--white); color: var(--text-sub); font-size: 14.5px; cursor: pointer;
  transition: all .2s;
}
.filter-btn.active, .filter-btn:hover { background: var(--primary); border-color: var(--primary); color: #fff; }

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.product-card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: transform .2s, box-shadow .2s;
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.product-thumb {
  height: 190px; display: flex; align-items: center; justify-content: center;
  font-size: 52px; color: #fff;
}
.pt-1 { background: linear-gradient(135deg, #0a6ebd, #4aa3df); }
.pt-2 { background: linear-gradient(135deg, #0e9488, #3ec9bb); }
.pt-3 { background: linear-gradient(135deg, #5b8def, #93b6f7); }
.pt-4 { background: linear-gradient(135deg, #1479a8, #4fb3d9); }
.product-info { padding: 22px 22px 26px; }
.product-info h3 { font-size: 18px; margin-bottom: 8px; }
.product-info p { font-size: 14px; color: var(--text-sub); margin-bottom: 14px; }
.product-info .tags { display: flex; gap: 8px; flex-wrap: wrap; }
.product-info .tag-chip {
  font-size: 12.5px; padding: 4px 12px; border-radius: 999px;
  background: var(--bg-light); color: var(--primary); border: 1px solid var(--border);
}

/* ---------- 新闻列表 ---------- */
.news-list { display: grid; gap: 20px; max-width: 860px; margin: 0 auto; }
.news-item {
  display: flex; gap: 24px; align-items: center;
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px 28px; transition: box-shadow .2s, transform .2s;
}
.news-item:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.news-date {
  flex-shrink: 0; width: 76px; text-align: center; padding: 10px 0;
  background: var(--bg-light); border-radius: 10px; border: 1px solid var(--border);
}
.news-date .d { font-size: 26px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.news-date .y { font-size: 12px; color: var(--text-sub); }
.news-item h3 { font-size: 17.5px; margin-bottom: 6px; }
.news-item p { font-size: 14px; color: var(--text-sub); }
.news-item .more { color: var(--primary); font-size: 14px; font-weight: 600; margin-top: 8px; display: inline-block; }

/* ---------- 关于我们 / 时间线 ---------- */
.about-block { display: flex; gap: 48px; align-items: flex-start; }
.about-block .text { flex: 1.2; }
.about-block .text p { color: var(--text-sub); margin-bottom: 16px; }
.about-visual {
  flex: 0.8; min-height: 300px; border-radius: 18px;
  background: linear-gradient(150deg, #eaf4fb, #e6f7f4);
  display: flex; align-items: center; justify-content: center; font-size: 80px;
}

.timeline { position: relative; max-width: 720px; margin: 0 auto; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 2px; background: var(--border); }
.timeline-item { position: relative; padding-bottom: 34px; }
.timeline-item::before {
  content: ""; position: absolute; left: -28px; top: 8px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--white); border: 3px solid var(--primary);
}
.timeline-item .year { font-weight: 700; color: var(--primary); font-size: 17px; }
.timeline-item p { color: var(--text-sub); font-size: 14.5px; }

/* ---------- 资质证书 ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.cert-card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 20px; text-align: center; transition: box-shadow .2s, transform .2s;
}
.cert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.cert-icon {
  width: 90px; height: 120px; margin: 0 auto 18px;
  border: 2px dashed var(--primary); border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--primary); font-size: 34px; background: var(--bg-light);
}
.cert-card h3 { font-size: 16px; margin-bottom: 6px; }
.cert-card p { font-size: 13px; color: var(--text-sub); }

.case-card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 28px;
}
.case-card .quote { color: var(--primary); font-size: 30px; font-weight: 700; line-height: 1; margin-bottom: 12px; }
.case-card p { color: var(--text-sub); font-size: 14.5px; margin-bottom: 16px; }
.case-card .who { font-weight: 600; font-size: 15px; }
.case-card .who span { color: var(--text-sub); font-weight: 400; font-size: 13.5px; display: block; }

/* ---------- 联系我们 ---------- */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; }
.contact-info .info-item { display: flex; gap: 16px; margin-bottom: 26px; align-items: flex-start; }
.contact-info .info-icon {
  width: 48px; height: 48px; border-radius: 12px; flex-shrink: 0;
  background: rgba(10,110,189,.08); color: var(--primary);
  display: flex; align-items: center; justify-content: center; font-size: 22px;
}
.contact-info h3 { font-size: 16px; margin-bottom: 4px; }
.contact-info p { color: var(--text-sub); font-size: 14.5px; }

.contact-form { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14.5px; font-family: inherit; color: var(--text-main);
  outline: none; transition: border-color .2s; background: var(--bg-light);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--primary); background: #fff; }
.form-note { font-size: 13px; color: var(--text-sub); margin-top: 14px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #10283f; color: #b8c9d9; padding: 60px 0 30px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 44px; }
.footer-grid h4 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer-grid p, .footer-grid a { font-size: 14px; color: #b8c9d9; line-height: 2; }
.footer-grid a:hover { color: #fff; }
.footer-logo { color: #fff; font-size: 20px; font-weight: 700; margin-bottom: 14px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12); padding-top: 24px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  font-size: 13px; color: #7f96ab;
}

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero-inner { flex-direction: column; }
  .hero-text h1 { font-size: 32px; }
  .grid-4, .grid-3, .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .about-block { flex-direction: column; }
}
@media (max-width: 640px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    flex-direction: column; padding: 12px 24px; gap: 4px;
  }
  .nav-links.open { display: flex; }
  .grid-4, .grid-3, .cert-grid, .product-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .news-item { flex-direction: column; align-items: flex-start; }
  .form-row { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
}

/* ============================================================
   GEO / C 端改造新增样式
   ============================================================ */

/* ---------- 顶部信任条 ---------- */
.trust-bar {
  background: linear-gradient(90deg, #0a6ebd, #0e9488);
  color: #fff;
  font-size: 13px;
}
.trust-inner {
  display: flex; gap: 28px; flex-wrap: wrap; justify-content: center;
  padding: 9px 24px; opacity: .96;
}
.trust-inner span { white-space: nowrap; }

/* ---------- 导航调整（7 项 + CTA） ---------- */
.nav-bar { gap: 16px; }
.nav-links { gap: 0; }
.nav-links a { padding: 8px 11px; font-size: 14.5px; }
.nav-cta { flex-shrink: 0; }
.btn-sm { padding: 8px 15px; font-size: 13.5px; }

/* ---------- 面包屑 ---------- */
.breadcrumb {
  font-size: 13px; color: #8ba0b3;
  padding: 16px 0 0; display: flex; flex-wrap: wrap; align-items: center; gap: 7px;
}
.breadcrumb a { color: #8ba0b3; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #c9d8e4; }
.breadcrumb span[aria-current] { color: var(--text-sub); }

/* ---------- 首屏要点 ---------- */
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 20px; }
.hero-points li {
  font-size: 14px; color: var(--primary); font-weight: 500;
  padding-left: 20px; position: relative;
}
.hero-points li::before {
  content: '✓'; position: absolute; left: 0; top: 0;
  color: var(--accent); font-weight: 700;
}

/* ---------- 实体定义答案框（AI 摘取区） ---------- */
.intro-strip { padding: 0; margin-top: -46px; }
.answer-box {
  background: #fff; border-radius: var(--radius);
  border-left: 4px solid var(--accent);
  box-shadow: 0 8px 30px rgba(10,110,189,.1);
  padding: 26px 30px;
}
.answer-label {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .04em;
  color: var(--accent); background: rgba(14,148,136,.1);
  padding: 3px 10px; border-radius: 999px; margin-bottom: 12px;
}
.answer-box p { font-size: 15.5px; line-height: 1.85; color: var(--text-sub); }

/* ---------- 场景入口 ---------- */
.section-scene { padding-top: 64px; }
.scene-card {
  display: block; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 22px;
  transition: transform .22s, box-shadow .22s, border-color .22s;
}
.scene-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow);
  border-color: rgba(10,110,189,.3);
}
.scene-icon { font-size: 30px; margin-bottom: 12px; }
.scene-card h3 { font-size: 17px; margin-bottom: 8px; }
.scene-card p { font-size: 14px; color: var(--text-sub); line-height: 1.75; min-height: 48px; }
.scene-arrow { display: inline-block; margin-top: 12px; font-size: 13px; color: var(--primary); font-weight: 600; }

/* ---------- 服务承诺 ---------- */
.promise-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px 22px; position: relative; overflow: hidden;
}
.promise-num {
  font-size: 40px; font-weight: 800; line-height: 1;
  color: rgba(10,110,189,.09); position: absolute; right: 16px; top: 10px;
}
.promise-card h3 { font-size: 16px; margin-bottom: 10px; color: var(--primary); }
.promise-card p { font-size: 14px; color: var(--text-sub); line-height: 1.8; }

/* ---------- 文章卡片 ---------- */
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.article-card {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px 22px; transition: transform .22s, box-shadow .22s;
}
.article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.article-cat {
  display: inline-block; align-self: flex-start;
  font-size: 12px; font-weight: 600; color: var(--accent);
  background: rgba(14,148,136,.1); padding: 3px 10px; border-radius: 999px;
  margin-bottom: 12px;
}
.article-card h2, .article-card h3 { font-size: 17px; line-height: 1.5; margin-bottom: 10px; }
.article-card > p { font-size: 14px; color: var(--text-sub); line-height: 1.8; }
.article-meta { margin-top: auto; padding-top: 14px; font-size: 12.5px; color: #9aabb9; }
.tldr-mini { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.tldr-mini li {
  font-size: 13px; color: #47586a; line-height: 1.6;
  padding-left: 14px; position: relative;
}
.tldr-mini li::before { content: '·'; position: absolute; left: 4px; color: var(--accent); font-weight: 700; }

/* ---------- FAQ 手风琴 ---------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: #fff; border: 1px solid var(--border); border-radius: 10px;
  padding: 0 20px; transition: border-color .2s, box-shadow .2s;
}
.faq-item[open] { border-color: rgba(10,110,189,.28); box-shadow: 0 3px 16px rgba(10,110,189,.07); }
.faq-item summary {
  cursor: pointer; list-style: none;
  padding: 17px 30px 17px 0; position: relative;
  font-size: 15.5px; font-weight: 600; color: var(--text-main); line-height: 1.6;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+'; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  font-size: 20px; font-weight: 400; color: var(--primary); line-height: 1;
}
.faq-item[open] summary::after { content: '−'; }
.faq-answer { padding: 0 0 20px; font-size: 14.5px; line-height: 1.9; color: #3d4e60; }
.faq-answer p { margin-bottom: 12px; }
.faq-answer p:last-child { margin-bottom: 0; }
.faq-answer h2 { font-size: 16px; margin: 18px 0 10px; color: var(--text-main); }
.faq-group { margin-top: 44px; }
.faq-group-title {
  font-size: 20px; margin-bottom: 18px; padding-left: 12px;
  border-left: 4px solid var(--accent);
}

/* ---------- 提示框 / 区块动作 ---------- */
.notice-box {
  margin-top: 40px; padding: 20px 24px; border-radius: 10px;
  background: var(--bg-light); border: 1px solid var(--border);
  font-size: 14px; line-height: 1.9; color: var(--text-sub);
}
.notice-box strong { color: var(--text-main); }
.notice-box a { color: var(--primary); font-weight: 500; }
.section-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 36px; }
.card-more { display: inline-block; margin-top: 10px; font-size: 13px; color: var(--primary); font-weight: 600; }

/* ---------- 底部转化区 ---------- */
.cta-band {
  background: linear-gradient(120deg, #0a6ebd, #0e8f9c);
  padding: 54px 0; color: #fff;
}
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-inner h2 { font-size: 26px; margin-bottom: 10px; color: #fff; }
.cta-inner p { font-size: 14.5px; line-height: 1.85; color: rgba(255,255,255,.85); max-width: 620px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-white { background: #fff; color: var(--primary); border: 1px solid #fff; }
.btn-white:hover { background: rgba(255,255,255,.9); }
.btn-outline-white { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.6); }
.btn-outline-white:hover { background: rgba(255,255,255,.14); color: #fff; }

/* ---------- 产品列表补充 ---------- */
.filter-sub { margin-top: 10px; }
.filter-label { font-size: 13.5px; color: var(--text-sub); margin-right: 4px; }
.filter-btn.sm { padding: 6px 14px; font-size: 13px; }
.aud-badge {
  display: inline-block; font-size: 11.5px; font-weight: 600;
  padding: 2px 9px; border-radius: 999px; margin-bottom: 8px;
}
.aud-badge.home { background: rgba(14,148,136,.12); color: #0b7a70; }
.aud-badge.clinic { background: rgba(10,110,189,.1); color: var(--primary); }

/* ---------- 产品详情页 ---------- */
.product-detail {
  display: grid; grid-template-columns: 420px 1fr; gap: 48px;
  align-items: start; padding-bottom: 44px;
  border-bottom: 1px solid var(--border);
}
.pd-visual {
  position: relative; background: var(--bg-light); border-radius: var(--radius);
  min-height: 320px; display: flex; align-items: center; justify-content: center;
  overflow: hidden; border: 1px solid var(--border);
}
.pd-visual img { width: 100%; height: 100%; object-fit: cover; }
.pd-emoji { font-size: 96px; }
.pd-gallery { width: 100%; }
.pd-main-img { width: 100%; max-height: 420px; object-fit: contain; background: var(--bg-light); border-radius: var(--radius); }
.pd-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 10px; padding: 0 0 14px; }
.pd-thumb { width: 100%; height: 72px; object-fit: cover; border-radius: 8px; border: 2px solid var(--border); cursor: pointer; opacity: .75; transition: opacity .15s, border-color .15s; }
.pd-thumb.active, .pd-thumb:hover { opacity: 1; border-color: var(--primary); }
.pd-aud {
  position: absolute; left: 14px; top: 14px;
  font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 999px;
  background: rgba(255,255,255,.94); color: var(--primary);
}
.pd-aud.home { color: #0b7a70; }
.pd-cat { font-size: 13px; color: var(--accent); font-weight: 600; letter-spacing: .03em; margin-bottom: 8px; }
.pd-main h1 { font-size: 30px; line-height: 1.35; margin-bottom: 14px; }
.pd-desc { font-size: 16px; color: var(--text-sub); line-height: 1.85; }
.pd-scene {
  margin-top: 20px; padding: 16px 20px; border-radius: 10px;
  background: var(--bg-light); border-left: 3px solid var(--primary);
}
.pd-scene strong { display: block; font-size: 13px; color: var(--primary); margin-bottom: 6px; }
.pd-scene p { font-size: 14.5px; color: var(--text-sub); line-height: 1.85; }
.pd-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }

.pd-body { display: grid; grid-template-columns: 1fr 320px; gap: 48px; padding-top: 44px; }
.pd-content h2, .block-title {
  font-size: 21px; margin: 36px 0 16px; padding-left: 12px;
  border-left: 4px solid var(--primary); line-height: 1.4;
}
.pd-content h2:first-child { margin-top: 0; }
.pd-content p { font-size: 15.5px; line-height: 1.95; color: #3d4e60; margin-bottom: 16px; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.spec-table th, .spec-table td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.spec-table th { width: 34%; background: var(--bg-light); color: var(--text-sub); font-weight: 600; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: none; }
.pd-disclaimer {
  margin: 30px 0 10px; padding: 16px 20px; border-radius: 10px;
  background: #fdf8ef; border: 1px solid #f4e6cc;
  font-size: 13.5px; line-height: 1.85; color: #8a6d3b;
}

/* ---------- 侧栏卡片 ---------- */
.pd-side, .article-side { display: flex; flex-direction: column; gap: 20px; }
.side-card {
  background: var(--bg-light); border-radius: var(--radius);
  padding: 22px 22px; border: 1px solid var(--border);
}
.side-card h3 { font-size: 15.5px; margin-bottom: 12px; }
.side-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.side-list li {
  font-size: 13.5px; color: var(--text-sub); line-height: 1.7;
  padding-left: 16px; position: relative;
}
.side-list li::before { content: '·'; position: absolute; left: 5px; color: var(--accent); font-weight: 700; }
.side-text { font-size: 13.5px; color: var(--text-sub); line-height: 1.85; margin-bottom: 12px; }
.side-link {
  display: block; font-size: 13.5px; color: var(--text-sub);
  line-height: 1.7; padding: 9px 0; border-bottom: 1px dashed var(--border);
}
.side-link:last-child { border-bottom: none; }
.side-link:hover { color: var(--primary); }

/* ---------- 文章详情 ---------- */
.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 56px; align-items: start; }
.article-head h1 { font-size: 32px; line-height: 1.4; margin: 14px 0 14px; }
.article-head .article-cat { align-self: flex-start; }
.article-sub { font-size: 13.5px; color: #94a3b8; display: flex; gap: 8px; align-items: center; margin-bottom: 18px; }
.article-summary {
  font-size: 16px; color: var(--text-sub); line-height: 1.9;
  padding-left: 16px; border-left: 3px solid var(--border);
}
.tldr-box {
  margin: 30px 0; padding: 24px 26px; border-radius: var(--radius);
  background: linear-gradient(135deg, #f0f8fd, #eefaf7);
  border: 1px solid #d8ecf7;
}
.tldr-title {
  font-size: 13px; font-weight: 700; color: var(--primary);
  letter-spacing: .04em; margin-bottom: 14px;
}
.tldr-box ul { display: flex; flex-direction: column; gap: 11px; }
.tldr-box li {
  font-size: 15px; line-height: 1.8; color: #2c4257;
  padding-left: 22px; position: relative;
}
.tldr-box li::before {
  content: '✓'; position: absolute; left: 0; top: 0;
  color: var(--accent); font-weight: 700;
}
.article-body { font-size: 16px; line-height: 1.95; color: #33475b; }
.article-body p { margin-bottom: 18px; }
.article-body h2 {
  font-size: 21px; margin: 38px 0 16px; padding-left: 12px;
  border-left: 4px solid var(--accent); line-height: 1.45;
}
.article-body h3 { font-size: 17.5px; margin: 26px 0 12px; }
.article-disclaimer {
  margin: 34px 0 10px; padding: 16px 20px; border-radius: 10px;
  background: #fdf8ef; border: 1px solid #f4e6cc;
  font-size: 13.5px; line-height: 1.85; color: #8a6d3b;
}
.rel-product {
  display: flex; align-items: center; gap: 20px;
  margin: 36px 0 10px; padding: 22px 24px;
  background: var(--bg-light); border: 1px solid var(--border);
  border-radius: var(--radius); flex-wrap: wrap;
}
.rel-product-icon { font-size: 38px; }
.rel-product-body { flex: 1; min-width: 200px; }
.rel-label { font-size: 12px; color: var(--accent); font-weight: 600; margin-bottom: 5px; }
.rel-product-body h3 { font-size: 16.5px; margin-bottom: 6px; }
.rel-product-body p { font-size: 13.5px; color: var(--text-sub); line-height: 1.75; }
.article-nav {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  margin-top: 46px; padding-top: 26px; border-top: 1px solid var(--border);
}
.article-nav-item { display: flex; flex-direction: column; gap: 6px; }
.article-nav-item span { font-size: 12.5px; color: #9aabb9; }
.article-nav-item strong { font-size: 14.5px; line-height: 1.6; font-weight: 600; }
.article-nav-item:hover strong { color: var(--primary); }
.article-nav-item.right { text-align: right; }

/* ---------- 关于页公司信息卡 ---------- */
.entity-card {
  margin: 0 0 60px; padding: 28px 32px;
  background: var(--bg-light); border: 1px solid var(--border);
  border-radius: var(--radius);
}
.entity-title {
  font-size: 13px; font-weight: 700; color: var(--primary);
  letter-spacing: .04em; margin-bottom: 20px;
}
.entity-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 40px; }
.entity-grid > div { display: flex; gap: 14px; align-items: baseline; }
.entity-grid dt { font-size: 13.5px; color: #8ba0b3; flex-shrink: 0; width: 70px; }
.entity-grid dd { font-size: 14.5px; color: var(--text-main); line-height: 1.75; }

/* ---------- 页脚补充 ---------- */
.footer-brand { max-width: 320px; }
.footer-entity { margin-top: 16px; font-size: 13px; line-height: 2; color: #8fa6ba; }
.footer-entity strong { color: #d7e3ee; font-weight: 600; }
.footer-entity a { font-size: 13px; color: #b8c9d9; }
.footer-note { font-size: 12.5px !important; color: #8fa6ba !important; line-height: 1.9 !important; }
.footer-disclaimer {
  font-size: 12.5px; line-height: 1.9; color: #7f96ab;
  padding: 18px 0; border-top: 1px solid rgba(255,255,255,.1); margin-bottom: 10px;
}

/* ---------- 新增区块响应式 ---------- */
@media (max-width: 1080px) {
  .nav-links a { padding: 8px 8px; font-size: 14px; }
  .product-detail { grid-template-columns: 340px 1fr; gap: 32px; }
  .pd-body { grid-template-columns: 1fr; gap: 34px; }
  .article-layout { grid-template-columns: 1fr; gap: 40px; }
  .article-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 960px) {
  .intro-strip { margin-top: -30px; }
  .answer-box { padding: 22px 22px; }
  .product-detail { grid-template-columns: 1fr; }
  .pd-visual { min-height: 240px; }
  .article-grid { grid-template-columns: repeat(2, 1fr); }
  .entity-grid { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 640px) {
  .trust-inner { gap: 6px 16px; font-size: 12px; padding: 8px 16px; }
  .trust-inner span:nth-child(3) { display: none; }
  .nav-cta { display: none; }
  .hero-points { gap: 8px 14px; }
  .hero-points li { font-size: 13px; }
  .article-grid { grid-template-columns: 1fr; }
  .article-head h1 { font-size: 24px; }
  .article-layout { gap: 32px; }
  .pd-main h1 { font-size: 24px; }
  .article-nav { grid-template-columns: 1fr; }
  .article-nav-item.right { text-align: left; }
  .answer-box { padding: 20px 18px; }
  .answer-box p { font-size: 14.5px; }
  .cta-inner h2 { font-size: 21px; }
  .entity-card { padding: 22px 20px; }
  .spec-table th, .spec-table td { padding: 10px 12px; font-size: 13.5px; }
}