/* =====================================================
   北检(北京)检测技术研究院 官网样式
   主色：#183883  辅色：#2b57b8 / #e89a3c
   ===================================================== */
:root {
  --primary: #183883;
  --primary-dark: #0f2a66;
  --primary-darker: #0a1e4a;
  --primary-light: #2b57b8;
  --primary-pale: #e8edf8;
  --gold: #e89a3c;
  --gold-dark: #d98a28;
  --text: #2b3445;
  --text-light: #6b7688;
  --line: #e3e8f0;
  --bg: #f5f7fb;
  --white: #ffffff;
  --radius: 10px;
  --shadow: 0 6px 24px rgba(24, 56, 131, 0.08);
  --shadow-hover: 0 12px 32px rgba(24, 56, 131, 0.16);
  --font-num: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px; line-height: 1.75; color: var(--text); background: var(--white);
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-light); }
ul, ol { list-style: none; }
table { border-collapse: collapse; width: 100%; }
.wrap { max-width: 1400px; margin: 0 auto; padding: 0 20px; }
.ico { width: 24px; height: 24px; }
.ico-s { width: 18px; height: 18px; vertical-align: -3px; margin-right: 4px; }
.skip { position: absolute; left: -9999px; top: 0; background: var(--primary); color: #fff; padding: 8px 16px; z-index: 999; }
.skip:focus { left: 0; }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 12px 28px;
  border-radius: 999px; font-size: 16px; font-weight: 600; border: 2px solid transparent;
  cursor: pointer; transition: all .25s; line-height: 1.4;
}
.btn-solid { background: var(--primary); color: #fff; }
.btn-solid:hover { background: var(--primary-light); color: #fff; box-shadow: var(--shadow-hover); }
.btn-gold { background: var(--gold); color: #fff; }
.btn-gold:hover { background: var(--gold-dark); color: #fff; box-shadow: 0 10px 24px rgba(232, 154, 60, .35); }
.btn-ghost { border-color: rgba(255, 255, 255, .7); color: #fff; background: rgba(255, 255, 255, .06); }
.btn-ghost:hover { background: rgba(255, 255, 255, .16); color: #fff; }
.btn-line { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn-line:hover { background: var(--primary); color: #fff; }

/* ---------------- 页头 ---------------- */
.masthead { background: #fff; border-bottom: 1px solid var(--line); }
.masthead .wrap { display: flex; align-items: center; gap: 28px; padding-top: 5px; padding-bottom: 5px; }
.brand { display: flex; align-items: center; flex-shrink: 0; }
.brand-mark { display: block; flex-shrink: 0; }
.site-search { display: flex; flex: 1; max-width: 380px; margin-left: auto; border: 2px solid var(--primary); border-radius: 999px; overflow: hidden; background: #fff; }
.site-search input { flex: 1; border: 0; outline: 0; padding: 9px 16px; font-size: 14px; color: var(--text); background: transparent; min-width: 0; }
.site-search button { border: 0; background: var(--primary); color: #fff; padding: 0 16px; cursor: pointer; display: flex; align-items: center; }
.site-search button:hover { background: var(--primary-light); }
.head-hot { display: flex; align-items: center; gap: 14px; flex-shrink: 0; margin-left: auto; }
.head-hot .hot-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 16px; font-weight: 600; color: var(--text); white-space: nowrap;
}
.head-hot .hot-label .ico-s { width: 22px; height: 22px; margin-right: 0; color: var(--primary); }
.head-hot a {
  font-size: 22px; color: var(--primary); font-weight: 800; letter-spacing: .5px;
  font-family: var(--font-num); font-variant-numeric: lining-nums;
  padding-left: 16px; border-left: 1px solid var(--line); line-height: 1.2;
  transition: color .2s;
}
.head-hot a:hover { color: var(--primary-light); }
.head-hot a:hover strong { color: var(--primary-light); }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; flex-direction: column; gap: 5px; margin-left: auto; }
.nav-toggle span { width: 24px; height: 2.5px; background: var(--primary); border-radius: 2px; transition: all .25s; }

/* ---------------- 主导航 ---------------- */
/* 整个页头（logo 区 + 导航）滚动悬浮固定 */
.site-head { position: sticky; top: 0; z-index: 100; background: #fff; transition: box-shadow .25s; }
.site-head.scrolled { box-shadow: 0 8px 24px rgba(15, 42, 102, .16); }
.mainnav { background: var(--primary); }
.mainnav > ul { display: flex; }
.mainnav > ul > li { position: relative; flex: 1; text-align: center; }
.mainnav > ul > li > a {
  display: block; color: #fff; font-size: 17px; font-weight: 600; padding: 5px 8px; letter-spacing: 2px;
  position: relative; white-space: nowrap;
}
.mainnav > ul > li > a:hover { color: #fff; background: rgba(255, 255, 255, .12); }
.mainnav > ul > li.active > a { background: rgba(255, 255, 255, .16); }
.mainnav > ul > li.active > a::after {
  content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 34px; height: 3px; background: var(--gold); border-radius: 2px 2px 0 0;
}
.caret { display: inline-block; width: 0; height: 0; border-left: 4px solid transparent; border-right: 4px solid transparent; border-top: 5px solid rgba(255,255,255,.8); margin-left: 5px; vertical-align: 2px; }
.subnav {
  position: absolute; left: 50%; top: 100%; transform: translateX(-50%) translateY(8px);
  background: #fff; min-width: 200px; border-radius: 0 0 8px 8px; box-shadow: var(--shadow-hover);
  opacity: 0; visibility: hidden; transition: all .22s; z-index: 95; padding: 8px 0; border-top: 3px solid var(--gold);
}
.mainnav li.has-sub:hover .subnav, .mainnav li.has-sub:focus-within .subnav { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.mainnav li.has-sub.opened .subnav { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.subnav a { display: block; padding: 9px 22px; color: var(--text); font-size: 15px; white-space: nowrap; }
.subnav a:hover { background: var(--primary-pale); color: var(--primary); }

/* ---------------- Hero ---------------- */
.hero {
  background: var(--primary-dark);
  color: #fff; overflow: hidden; position: relative;
  min-height: calc(100vh - 117px);
  display: flex; align-items: center;
}
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-mask {
  position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(18, 42, 94, .88) 0%, rgba(24, 56, 131, .80) 55%, rgba(43, 87, 184, .72) 100%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background-image: radial-gradient(rgba(255,255,255,.09) 1.5px, transparent 1.5px);
  background-size: 26px 26px; opacity: .5;
}
.hero-in { display: flex; align-items: center; gap: 40px; padding-top: 48px; padding-bottom: 48px; position: relative; z-index: 2; width: 100%; }
.hero-txt { flex: 1.2; }
.hero-tag {
  display: inline-flex; align-items: center; font-size: 14px; color: #ffd9a8;
  border: 1px solid rgba(255, 217, 168, .45); border-radius: 999px; padding: 5px 16px; margin-bottom: 20px;
  background: rgba(232, 154, 60, .14);
}
.hero h1 { font-size: 44px; line-height: 1.3; letter-spacing: 2px; }
.hero-h1s { display: block; font-size: 24px; font-weight: 500; color: #c9d7f5; letter-spacing: 4px; margin-top: 8px; }
.hero-sub { margin-top: 18px; max-width: 620px; color: #d4def5; font-size: 15.5px; }
.hero-btns { display: flex; gap: 16px; margin-top: 28px; flex-wrap: wrap; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-top: 30px; }
.hero-chips li { font-size: 14px; color: #e6ecfa; }
.hero-art { flex: .8; max-width: 360px; }
.hero-art svg { width: 100%; height: auto; }

main [id] { scroll-margin-top: 178px; }

/* ---------------- 首页：关于我们（大气版） ---------------- */
.about-home {
  padding: 88px 0; position: relative; overflow: hidden;
  background: linear-gradient(180deg, #fbfcfe 0%, #f2f6fc 100%);
}
.about-home::before {
  content: ""; position: absolute; right: -140px; top: -140px; width: 460px; height: 460px;
  border-radius: 50%; background: var(--primary-pale); opacity: .45;
}
.about-home::after {
  content: ""; position: absolute; left: -80px; bottom: -160px; width: 320px; height: 320px;
  border-radius: 50%; border: 40px solid var(--primary-pale); opacity: .4;
}
.about-in { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 60px; align-items: center; position: relative; }
.sh-kicker { display: inline-flex; align-items: center; gap: 12px; font-size: 14px; letter-spacing: 4px; color: var(--gold-dark); font-weight: 700; margin-bottom: 16px; }
.sh-kicker::before { content: ""; width: 38px; height: 3px; background: var(--gold); border-radius: 2px; }
.about-txt h2 { font-size: 30px; color: var(--primary-dark); letter-spacing: 1px; line-height: 1.3; }
.about-sub { margin-top: 10px; color: var(--text-light); font-size: 15px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.about-p { margin-top: 16px; font-size: 15px; text-align: justify; }
.about-btns { display: flex; gap: 14px; margin-top: 26px; flex-wrap: wrap; }
.about-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.stat {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 22px 20px; transition: all .28s;
}
.stat:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: transparent; }
.st-ico { width: 46px; height: 46px; border-radius: 12px; color: #fff; display: flex; align-items: center; justify-content: center; }
.st-ico .ico { width: 24px; height: 24px; }
.stat h3 { font-size: 17px; color: var(--primary-dark); margin-top: 12px; letter-spacing: 1px; }
.stat p { font-size: 13px; color: var(--text-light); margin-top: 4px; line-height: 1.6; }

/* ---------------- 区块通用 ---------------- */
.sec { padding: 64px 0; }
.sec-alt { background: var(--bg); }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 36px; gap: 16px; }
.sh-t h2 { font-size: 30px; color: var(--primary-dark); letter-spacing: 1px; position: relative; padding-left: 16px; line-height: 1.3; }
.sh-t h2::before { content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 5px; background: linear-gradient(180deg, var(--gold), var(--primary)); border-radius: 3px; }
.sh-en { display: block; font-size: 12px; letter-spacing: 4px; color: #9aa7c4; text-transform: uppercase; margin-top: 4px; padding-left: 16px; }
.sh-more { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--text-light); white-space: nowrap; }
.sh-more svg { width: 16px; height: 16px; }
.sh-more:hover { color: var(--primary); }

/* ---------------- 首页：检测项目（左侧大卡片 + 右侧 9 宫格） ---------------- */
.cat-mosaic { display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 18px; align-items: stretch; }
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cat-feature {
  display: flex; flex-direction: column; align-items: flex-start; gap: 12px;
  background: linear-gradient(150deg, var(--primary-dark) 0%, var(--primary) 60%, #24509e 100%);
  border-radius: var(--radius); padding: 30px 26px 26px; color: #fff; position: relative; overflow: hidden;
}
.cat-feature::after { content: ""; position: absolute; right: -46px; bottom: -46px; width: 160px; height: 160px; border-radius: 50%; background: rgba(255, 255, 255, .07); }
.cat-feature .cat-ico { width: 60px; height: 60px; border-radius: 14px; }
.cat-feature .cat-ico .ico { width: 30px; height: 30px; }
.cat-feature strong { font-size: 24px; letter-spacing: 2px; color: #fff; }
.cf-desc { font-size: 13.5px; color: #c9d6f2; line-height: 1.7; }
.cf-items { margin: 2px 0 6px; position: relative; z-index: 1; align-self: stretch; }
.cf-items li {
  font-size: 14px; color: #e2eafb; padding: 7px 30px 7px 20px; position: relative;
  border-bottom: 1px dashed rgba(255, 255, 255, .14); border-radius: 6px;
  transition: background .25s, padding .25s, color .25s;
}
.cf-items li:last-child { border-bottom: 0; }
.cf-items li::before { content: "›"; position: absolute; left: 2px; color: var(--gold); font-weight: 700; transition: transform .25s; }
.cf-items li::after {
  content: "→"; position: absolute; right: 8px; top: 50%;
  transform: translateY(-50%) translateX(-8px); opacity: 0; color: var(--gold);
  font-weight: 700; transition: all .25s;
}
.cf-items li:hover { background: rgba(255, 255, 255, .12); padding-left: 28px; color: #fff; }
.cf-items li:hover::before { transform: translateX(4px); }
.cf-items li:hover::after { opacity: 1; transform: translateY(-50%) translateX(0); }
.cf-go { margin-top: auto; position: relative; z-index: 1; padding: 9px 20px; font-size: 14px; }
.cat-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 20px 20px; position: relative; overflow: hidden; color: var(--text);
  display: flex; flex-direction: column; gap: 8px; transition: all .28s;
}
.cat-card::after { content: ""; position: absolute; right: -26px; bottom: -26px; width: 90px; height: 90px; border-radius: 50%; background: var(--primary-pale); opacity: .55; transition: all .28s; }
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: transparent; color: var(--text); }
.cat-card:hover::after { transform: scale(2.4); opacity: .3; }
.cat-ico {
  width: 52px; height: 52px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; display: flex; align-items: center; justify-content: center;
}
.cat-ico .ico { width: 27px; height: 27px; }
.cat-card strong { font-size: 18px; color: var(--primary-dark); }
.cat-desc { font-size: 13px; color: var(--text-light); line-height: 1.6; }
.cat-items { font-size: 12px; color: #93a0bd; line-height: 1.6; }
.cat-go { margin-top: auto; font-size: 13px; font-weight: 600; color: var(--primary); position: relative; z-index: 1; }
.cat-go::after { content: "→"; margin-left: 4px; transition: margin .2s; }
.cat-card:hover .cat-go::after { margin-left: 8px; }

/* ---------------- 首页：优势 ---------------- */
.feat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.feat { display: flex; gap: 16px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; transition: all .25s; }
.feat:hover { box-shadow: var(--shadow); border-color: transparent; }
.feat-ico { width: 54px; height: 54px; flex-shrink: 0; border-radius: 50%; background: var(--primary-pale); color: var(--primary); display: flex; align-items: center; justify-content: center; }
.feat-ico .ico { width: 26px; height: 26px; }
.feat h3 { font-size: 17px; color: var(--primary-dark); margin-bottom: 6px; }
.feat p { font-size: 14px; color: var(--text-light); }

/* ---------------- 首页：为什么选择北检院（编号卡片版） ---------------- */
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.why-card {
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid var(--line); border-top: 3px solid var(--primary);
  border-radius: var(--radius); padding: 24px 22px 24px;
  transition: transform .28s, box-shadow .28s, border-top-color .28s;
}
.why-num {
  position: absolute; right: 12px; top: 2px;
  font-size: 64px; line-height: 1; font-weight: 700;
  font-family: Georgia, serif; color: var(--primary-pale);
  transition: color .28s, transform .28s;
  pointer-events: none;
}
.why-ico {
  width: 56px; height: 56px; border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px; box-shadow: 0 8px 18px rgba(24, 56, 131, .22);
  transition: transform .3s;
}
.why-ico .ico { width: 28px; height: 28px; }
.why-card h3 {
  font-size: 18px; color: var(--primary-dark); letter-spacing: 1px;
  position: relative; padding-bottom: 10px; margin-bottom: 10px;
}
.why-card h3::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 28px; height: 3px;
  background: var(--gold); border-radius: 2px; transition: width .3s;
}
.why-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.why-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); border-top-color: var(--gold); }
.why-card:hover .why-num { color: #d5e0f5; transform: translateY(-4px); }
.why-card:hover .why-ico { transform: rotate(-6deg) scale(1.06); }
.why-card:hover h3::after { width: 100%; }

/* 专家团队展示块（左文右图） */
.why-team {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 56px; align-items: center;
  padding-bottom: 46px; margin-bottom: 46px; border-bottom: 1px solid var(--line);
}
.wt-tag {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 3px;
  color: var(--primary); background: var(--primary-pale);
  padding: 4px 16px; border-radius: 999px; margin-bottom: 14px;
}
.why-team-txt h3 { font-size: 24px; color: var(--primary-dark); line-height: 1.4; letter-spacing: 1px; margin-bottom: 12px; }
.wt-p { font-size: 15px; text-align: justify; margin-top: 10px; }
.wt-list { margin: 16px 0 22px; }
.wt-list li { position: relative; padding: 7px 0 7px 32px; font-size: 15px; color: var(--text); }
.wt-list li::before {
  content: "✓"; position: absolute; left: 0; top: 8px; width: 22px; height: 22px;
  background: var(--primary-pale); color: var(--primary); border-radius: 50%;
  font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center;
}
.why-team-img { margin: 0; position: relative; }
.why-team-img::before {
  content: ""; position: absolute; right: -16px; top: -16px; width: 100%; height: 100%;
  border-radius: var(--radius); background: var(--primary-pale);
}
.why-team-img img {
  position: relative; width: 100%; aspect-ratio: 4/3; object-fit: cover;
  border-radius: var(--radius); box-shadow: var(--shadow);
}

/* ---------------- 首页：流程（浅色通栏） ---------------- */
.process-sec { background: linear-gradient(180deg, #f0f5fd, #e8eefb); }
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: step; }
.steps li {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 18px; text-align: center; color: var(--text); position: relative;
  transition: transform .25s, box-shadow .25s;
  box-shadow: 0 4px 14px rgba(24, 56, 131, .05);
}
.steps li:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.step-n { display: block; font-size: 30px; font-weight: 700; font-family: Georgia, serif; color: var(--gold); line-height: 1.2; }
.steps strong { display: block; font-size: 17px; margin: 6px 0 4px; letter-spacing: 1px; color: var(--primary-dark); }
.step-d { font-size: 13px; color: var(--text-light); }
/* 关于页内的流程卡片（浅蓝底适配白色卡片容器） */
.steps-about li { background: var(--bg); border: 1px solid var(--line); box-shadow: none; }
.steps-about li:hover { background: var(--primary-pale); box-shadow: none; }
.steps-about { gap: 12px; }

/* ---------------- 首页：资讯 tabs ---------------- */
.tab-btns { display: flex; gap: 8px; border-bottom: 2px solid var(--line); margin-bottom: 24px; flex-wrap: wrap; }
.tab-btn {
  border: 0; background: none; padding: 10px 22px; font-size: 16px; color: var(--text-light);
  cursor: pointer; position: relative; font-family: inherit; letter-spacing: 1px;
}
.tab-btn.on { color: var(--primary); font-weight: 700; }
.tab-btn.on::after { content: ""; position: absolute; left: 50%; bottom: -2px; transform: translateX(-50%); width: 40px; height: 3px; background: var(--primary); border-radius: 2px; }
.tab-panel { display: none; }
.tab-panel.on { display: block; animation: fade .35s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.news-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 28px; }
.news-layout > * { min-width: 0; }
.news-feat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: box-shadow .25s; }
.news-feat:hover { box-shadow: var(--shadow); }
.news-feat h3 { font-size: 20px; line-height: 1.5; margin-bottom: 12px; }
.news-feat p { font-size: 14.5px; color: var(--text-light); margin-bottom: 14px; }
.news-feat time { font-size: 13px; color: #9aa7c4; }
.news-list li { display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 13px 4px; border-bottom: 1px dashed var(--line); }
.news-list li a { flex: 1; min-width: 0; font-size: 15px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-list li a::before { content: ""; display: inline-block; width: 5px; height: 5px; border-radius: 50%; background: var(--primary); margin-right: 10px; vertical-align: 3px; }
.news-list li a:hover { color: var(--primary); }
.news-list time { font-size: 13px; color: #9aa7c4; white-space: nowrap; }

/* ---------------- 首页：设备/荣誉 ---------------- */
.eq-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.eq-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: all .28s; display: block; color: var(--text); padding-bottom: 16px; }
.eq-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); color: var(--text); }
.eq-card img { width: 100%; aspect-ratio: 32/21; object-fit: cover; }
.eq-card strong { display: block; padding: 14px 16px 2px; font-size: 16px; color: var(--primary-dark); line-height: 1.45; }
.eq-card span { display: block; padding: 0 16px; font-size: 13px; color: var(--text-light); }
.eq-card .eq-desc { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin: 6px 0 0; padding: 0 16px; font-size: 13px; color: var(--text-light); line-height: 1.6; }
.eq-grid2 { grid-template-columns: repeat(2, 1fr); }
.eq-grid3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.eq-table td { font-size: 13.5px; }
.eq-table td:nth-child(4) { color: var(--text); }
.eq-lg { display: flex; flex-direction: column; padding-bottom: 0; }
.eq-bd { padding: 18px 20px 22px; }
.eq-bd h2 { font-size: 18px; color: var(--primary-dark); margin-bottom: 6px; }
.eq-model { font-size: 13px; color: var(--gold-dark); margin-bottom: 8px; font-weight: 600; }
.eq-bd p { font-size: 14px; color: var(--text-light); }
.hg-row { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; }
.hg-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; text-align: center; transition: all .25s; }
.hg-item:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.hg-item img { width: 100%; aspect-ratio: 3/4; object-fit: contain; background: #fff; border: 1px solid var(--line); border-radius: 6px; margin-bottom: 10px; padding: 6px; box-sizing: border-box; }
.hg-item span { font-size: 14px; font-weight: 600; color: var(--primary-dark); }

/* ---------------- 首页：CTA（浅色） ---------------- */
.cta-band {
  background: linear-gradient(120deg, #f2f6fd 0%, #e9effb 100%);
  color: var(--text); padding: 48px 0;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.cta-in { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.cta-txt h2 { font-size: 26px; letter-spacing: 1px; color: var(--primary-dark); }
.cta-txt p { color: var(--text-light); margin-top: 6px; font-size: 15px; }
.btn-xl { padding: 16px 46px; font-size: 17px; }
.btn-xl .ico-s { width: 20px; height: 20px; vertical-align: -4px; margin-right: 8px; }

/* ---------------- 面包屑 ---------------- */
.crumb { padding: 16px 20px; }
.crumb ol { display: flex; flex-wrap: wrap; gap: 4px 0; font-size: 13.5px; color: var(--text-light); }
.crumb li { display: flex; align-items: center; }
.crumb li + li::before { content: "›"; margin: 0 10px; color: #b6c0d8; }
.crumb a { color: var(--text-light); }
.crumb a:hover { color: var(--primary); }
.crumb span[aria-current] { color: var(--primary); font-weight: 600; }

/* ---------------- 内页布局 ---------------- */
.page-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 30px; align-items: start; padding-bottom: 60px; }
.page-layout > * { min-width: 0; }
.page-narrow { max-width: 860px; padding-bottom: 60px; }
.page-intro { background: linear-gradient(120deg, var(--primary-pale), #fff); border-left: 5px solid var(--primary); border-radius: 0 var(--radius) var(--radius) 0; padding: 26px 30px; margin-bottom: 28px; }
.page-intro h1 { font-size: 28px; color: var(--primary-dark); letter-spacing: 1px; line-height: 1.4; }
.page-intro p { margin-top: 8px; color: var(--text-light); font-size: 15px; }

/* ---------------- 列表页 Banner ---------------- */
.list-banner {
  background: var(--primary-dark);
  color: #fff; padding: 130px 0 140px; margin-bottom: 40px; position: relative; overflow: hidden;
}
.banner-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.banner-mask {
  position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(15, 42, 102, .88) 0%, rgba(24, 56, 131, .80) 55%, rgba(43, 87, 184, .72) 100%);
}
.list-banner::before {
  content: ""; position: absolute; right: -90px; top: -110px; width: 320px; height: 320px;
  border-radius: 50%; background: rgba(255, 255, 255, .07); z-index: 0;
}
.list-banner::after {
  content: ""; position: absolute; right: 130px; bottom: -130px; width: 230px; height: 230px;
  border-radius: 50%; background: rgba(255, 255, 255, .05); z-index: 0;
}
.list-banner .wrap { position: relative; z-index: 1; }
/* 加高版 Banner（设备仪器页） */
.banner-tall {
  min-height: 580px;
  display: flex; align-items: center;
}
.banner-tall .wrap { width: 100%; }
.list-banner .wrap { position: relative; }
.lb-crumb { padding: 14px 0 0; margin-top: 18px; border-top: 1px solid rgba(255, 255, 255, .16); }
.lb-crumb ol { gap: 10px; }
.lb-crumb li + li::before { content: none; }
.lb-crumb a, .lb-crumb span {
  display: inline-flex; align-items: center;
  padding: 5px 16px; border-radius: 999px;
  background: rgba(255, 255, 255, .10);
  color: #dbe5f8; font-size: 13px; line-height: 1.6;
  transition: background .2s, color .2s;
}
.lb-crumb a:hover { background: rgba(255, 255, 255, .22); color: #fff; }
.lb-crumb span[aria-current] { background: var(--gold); color: #fff; font-weight: 600; }
.list-banner h1 { font-size: 30px; letter-spacing: 1px; line-height: 1.3; position: relative; padding-left: 16px; }
.list-banner h1::before {
  content: ""; position: absolute; left: 0; top: 7px; bottom: 7px; width: 5px;
  border-radius: 3px; background: var(--gold);
}
.lb-desc { margin-top: 10px; color: #c9d6f2; font-size: 14.5px; max-width: 780px; }

/* VR 全景展示区（点击播放） */
.vr-box {
  position: relative; margin: 18px 0 26px; border-radius: var(--radius); overflow: hidden;
  cursor: pointer; aspect-ratio: 16/9; background: var(--primary-darker);
  box-shadow: var(--shadow); outline: none;
}
.vr-box:focus-visible { box-shadow: 0 0 0 3px var(--gold); }
.vr-cover {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 18px;
  background: linear-gradient(120deg, #122a5e 0%, var(--primary) 55%, #2b57b8 100%);
}
.vr-cover::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.09) 1.5px, transparent 1.5px);
  background-size: 26px 26px; opacity: .5;
}
.vr-play {
  position: relative; width: 78px; height: 78px; border-radius: 50%;
  background: rgba(255, 255, 255, .14); border: 2px solid rgba(255, 255, 255, .55);
  display: flex; align-items: center; justify-content: center;
  transition: transform .25s, background .25s;
}
.vr-play::before {
  content: ""; position: absolute; inset: -12px; border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, .35); animation: vrpulse 2s ease-out infinite;
}
@keyframes vrpulse { 0% { transform: scale(.82); opacity: .9; } 100% { transform: scale(1.28); opacity: 0; } }
.vr-play svg { width: 30px; height: 30px; fill: #fff; margin-left: 5px; }
.vr-box:hover .vr-play { transform: scale(1.1); background: var(--gold); border-color: var(--gold); }
.vr-tip { font-size: 14px; color: #c9d6f2; letter-spacing: 3px; position: relative; }
.vr-box.vr-playing { cursor: default; }
.vr-tip-off { color: #ffd9a8; padding: 24px; text-align: center; font-size: 14.5px; }

/* ---------------- 灯箱 ---------------- */
img.has-lb { cursor: zoom-in; }
.lightbox { position: fixed; inset: 0; z-index: 300; display: none; }
.lightbox.on { display: block; }
.lb-backdrop { position: absolute; inset: 0; background: rgba(10, 18, 40, .92); }
.lb-body {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  max-width: min(1200px, 92vw); max-height: 86vh; margin: 0;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.lb-body .lb-img {
  max-width: 100%; max-height: calc(86vh - 70px);
  width: auto; height: auto; object-fit: contain;
  border-radius: 8px; box-shadow: 0 20px 60px rgba(0, 0, 0, .5); background: #fff;
}
.lb-cap { color: #dfe7f6; font-size: 15px; letter-spacing: 1px; text-align: center; }
.lightbox button {
  position: absolute; border: 1px solid rgba(255, 255, 255, .4); background: rgba(255, 255, 255, .1);
  color: #fff; cursor: pointer; border-radius: 50%; transition: all .2s;
  display: flex; align-items: center; justify-content: center;
}
.lightbox button:hover { background: var(--gold); border-color: var(--gold); }
.lb-close { top: 26px; right: 30px; width: 44px; height: 44px; font-size: 22px; }
.lb-prev { left: 30px; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; font-size: 26px; }
.lb-next { right: 30px; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; font-size: 26px; }
.lb-prev:hover, .lb-next:hover { transform: translateY(-50%) scale(1.08); }

/* 分页 */
.pagination { display: flex; align-items: center; justify-content: center; gap: 8px; margin: 34px 0 4px; flex-wrap: wrap; }
.pg-info { font-size: 13.5px; color: var(--text-light); margin-right: 8px; }
.pg-item {
  min-width: 40px; height: 40px; padding: 0 12px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: 8px; background: #fff;
  color: var(--text); font-size: 14.5px; transition: all .2s;
}
a.pg-item:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-pale); }
.pg-item.pg-cur { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 600; }
.pg-item.pg-disabled { color: #b9c2d4; background: var(--bg); cursor: not-allowed; }
.pg-nav { letter-spacing: 1px; }

/* 列表页紧凑标题行 */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* 文章列表卡片 */
.art-list { display: flex; flex-direction: column; gap: 16px; }
.art-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 26px; transition: all .25s; }
.art-card:hover { box-shadow: var(--shadow); border-color: transparent; }
.art-card h2, .art-card h3 { font-size: 19px; line-height: 1.5; margin-bottom: 8px; }
.art-card h2 a, .art-card h3 a { color: var(--primary-dark); }
.art-card h2 a:hover, .art-card h3 a:hover { color: var(--primary-light); }
.art-card p { font-size: 14.5px; color: var(--text-light); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ac-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 14px; margin-top: 14px; font-size: 13px; color: #9aa7c4; }
.ac-meta time, .ac-cat { white-space: nowrap; }
.ac-cat { background: var(--primary-pale); color: var(--primary); border-radius: 4px; padding: 2px 10px; }
.tag { background: var(--bg); border: 1px solid var(--line); border-radius: 4px; padding: 2px 10px; color: var(--text-light); }
.ac-more { margin-left: auto; font-weight: 600; }

/* 栏目枢纽页 */
.hub-panels { display: flex; flex-direction: column; gap: 28px; }
.hub-cat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 28px; }
.hub-cat-hd { display: flex; align-items: center; gap: 14px; padding-bottom: 16px; border-bottom: 1px solid var(--line); margin-bottom: 18px; flex-wrap: wrap; }
.hub-cat-hd > .ico { width: 38px; height: 38px; color: var(--primary); flex-shrink: 0; }
.hub-cat-hd h2 { font-size: 20px; color: var(--primary-dark); }
.hub-cat-hd p { font-size: 13.5px; color: var(--text-light); }
.hub-cat-hd .sh-more { margin-left: auto; }
.hub-items { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px 24px; }
.hub-items a { display: block; padding: 9px 12px; font-size: 15px; color: var(--text); border-radius: 6px; background: var(--bg); }
.hub-items a::before { content: "›"; margin-right: 8px; color: var(--primary); font-weight: 700; }
.hub-items a:hover { background: var(--primary-pale); color: var(--primary); }

/* ---------------- 文章内容页 ---------------- */
.post { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px 38px; }
.post-head { border-bottom: 1px solid var(--line); padding-bottom: 18px; margin-bottom: 24px; }
.post-head h1 { font-size: 26px; color: var(--primary-dark); line-height: 1.5; }
.post-name { font-size: 22px; font-weight: 700; color: var(--primary-dark); line-height: 1.5; letter-spacing: 1px; margin: 0; }
.post-sub, .post-meta { margin-top: 10px; font-size: 13.5px; color: #9aa7c4; display: flex; flex-wrap: wrap; gap: 4px 18px; }
.post-meta time { color: var(--text-light); }
.post h2 { font-size: 20px; color: var(--primary-dark); margin: 30px 0 14px; padding-left: 12px; border-left: 4px solid var(--primary); line-height: 1.4; }
.post h3 { font-size: 17px; color: var(--primary-dark); margin: 22px 0 10px; }
.post-body p, .post > p { margin: 12px 0; font-size: 15.5px; text-align: justify; }
.dot-list { margin: 12px 0 12px 6px; }
.dot-list li { position: relative; padding: 5px 0 5px 24px; font-size: 15.5px; }
.dot-list li::before { content: ""; position: absolute; left: 4px; top: 15px; width: 7px; height: 7px; border-radius: 50%; background: var(--gold); }
.num-list { margin: 14px 0; counter-reset: n; }
.num-list li { position: relative; padding: 8px 0 8px 44px; font-size: 15.5px; }
.num-list li::before {
  counter-increment: n; content: counter(n, decimal-leading-zero);
  position: absolute; left: 0; top: 8px; width: 30px; height: 30px; border-radius: 8px;
  background: var(--primary-pale); color: var(--primary); font-size: 13px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.param-wrap { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0; }
.param-chip { background: var(--primary-pale); color: var(--primary); border-radius: 6px; padding: 5px 14px; font-size: 14px; font-weight: 600; }
.std-table { margin: 14px 0; font-size: 14.5px; }
.std-table th, .std-table td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; vertical-align: top; }
.std-table thead th { background: var(--primary); color: #fff; font-weight: 600; letter-spacing: 1px; }
.std-table tbody tr:nth-child(even) { background: var(--bg); }
.std-table tbody th { background: var(--primary-pale); color: var(--primary-dark); width: 140px; white-space: nowrap; }
.note { font-size: 13.5px; color: #9aa7c4; background: var(--bg); border-radius: 8px; padding: 12px 16px; }

/* 文末 CTA */
.post-cta {
  margin-top: 30px; background: linear-gradient(120deg, var(--primary-pale), #f2f6ff);
  border: 1px dashed var(--primary-light); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 26px; flex-wrap: wrap;
}
.post-cta strong { display: block; font-size: 17px; color: var(--primary-dark); }
.post-cta span { font-size: 13.5px; color: var(--text-light); }
.post-cta .cta-r { display: flex; gap: 12px; flex-wrap: wrap; }
.post-cta .btn { padding: 10px 22px; font-size: 15px; }

/* 相关推荐 / 上下篇 */
.related { margin-top: 26px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 28px; }
.related h2 { font-size: 18px; color: var(--primary-dark); margin-bottom: 14px; }
.rel-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 24px; }
.rel-grid a { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; padding: 9px 12px; background: var(--bg); border-radius: 6px; font-size: 14.5px; color: var(--text); line-height: 1.6; }
.rel-grid a::before { content: "›"; margin-right: 8px; color: var(--primary); font-weight: 700; }
.rel-grid a:hover { background: var(--primary-pale); color: var(--primary); }
.pager { display: flex; justify-content: space-between; gap: 16px; margin-top: 22px; font-size: 14px; flex-wrap: wrap; }
.pager a, .pager span { color: var(--text-light); background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 10px 18px; min-width: 0; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pager a:hover { border-color: var(--primary); color: var(--primary); }

/* ---------------- 侧栏 ---------------- */
.sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 178px; }
.sb-box { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.sb-box h3 { font-size: 16px; color: var(--primary-dark); padding-bottom: 10px; border-bottom: 1px solid var(--line); margin-bottom: 12px; letter-spacing: 1px; }
.sb-links li a { display: block; padding: 7px 2px 7px 16px; font-size: 14.5px; color: var(--text); position: relative; }
.sb-links li a::before { content: ""; position: absolute; left: 0; top: 15px; width: 6px; height: 6px; border-radius: 50%; background: #c9d3ea; transition: background .2s; }
.sb-links li a:hover, .sb-links li a.cur { color: var(--primary); font-weight: 600; }
.sb-links li a:hover::before, .sb-links li a.cur::before { background: var(--gold); }
.sb-cats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.sb-cats li a {
  display: flex; flex-direction: column; align-items: center; gap: 7px;
  padding: 12px 4px 10px; border: 1px solid var(--line); border-radius: 10px;
  font-size: 12.5px; color: var(--text); text-align: center;
  transition: all .2s;
}
.sb-cat-ico {
  width: 34px; height: 34px; border-radius: 9px; color: #fff; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 10px rgba(24, 56, 131, .18);
}
.sb-cat-ico .ico { width: 18px; height: 18px; }
.sb-cat-name { width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; letter-spacing: .5px; }
.sb-cats li a:hover { border-color: transparent; box-shadow: var(--shadow-hover); transform: translateY(-3px); color: var(--primary); }
.sb-hot li { padding: 9px 0; border-bottom: 1px dashed var(--line); }
.sb-hot li:last-child { border-bottom: 0; }
.sb-hot a { display: block; font-size: 14px; color: var(--text); line-height: 1.55; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.sb-hot time { font-size: 12px; color: #9aa7c4; }
/* 侧栏资质轮播 */
.sb-honor .hg-slider {
  position: relative; aspect-ratio: 3/4; border: 1px solid var(--line);
  border-radius: 8px; overflow: hidden; background: #fff;
}
.hg-slide {
  position: absolute; inset: 0; margin: 0; display: flex; flex-direction: column;
  opacity: 0; visibility: hidden; transition: opacity .3s;
}
.hg-slide.on { opacity: 1; visibility: visible; }
.hg-slide img { flex: 1; width: 100%; min-height: 0; object-fit: contain; padding: 8px; box-sizing: border-box; cursor: zoom-in; }
.hg-slide figcaption {
  text-align: center; font-size: 13px; font-weight: 600; color: var(--primary-dark);
  padding: 8px 6px; background: var(--primary-pale); letter-spacing: 1px;
}
.hg-nav { display: flex; align-items: center; justify-content: space-between; margin-top: 10px; }
.hg-btn {
  width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--line);
  background: #fff; color: var(--primary); font-size: 17px; line-height: 1;
  cursor: pointer; transition: all .2s; font-family: Georgia, serif;
}
.hg-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.hg-count { font-size: 12.5px; color: var(--text-light); font-family: var(--font-num); letter-spacing: 1px; }

.sb-contact {
  background: linear-gradient(160deg, var(--primary-darker) 0%, var(--primary) 75%, #24509e 100%);
  border: 0; color: #fff; position: relative; overflow: hidden;
}
.sb-contact::before {
  content: ""; position: absolute; right: -34px; top: -34px; width: 120px; height: 120px;
  border-radius: 50%; background: rgba(255, 255, 255, .06);
}
.sb-contact h3 { color: #fff; border-bottom-color: rgba(255, 255, 255, .2); }
.sb-lead { font-size: 14px; color: #dbe5f8; line-height: 1.8; margin: 2px 0 14px; }
.sb-perks { margin-bottom: 18px; }
.sb-perks li {
  position: relative; padding: 8px 0 8px 26px; font-size: 14px; color: #e9eefb;
  border-bottom: 1px dashed rgba(255, 255, 255, .16);
}
.sb-perks li:last-child { border-bottom: 0; }
.sb-perks li::before {
  content: "✓"; position: absolute; left: 0; top: 9px; width: 18px; height: 18px;
  background: var(--gold); color: #fff; border-radius: 50%;
  font-size: 11px; font-weight: 700; display: flex; align-items: center; justify-content: center;
}
.sb-btn { display: flex; justify-content: center; width: 100%; padding: 13px 20px; font-size: 16px; letter-spacing: 1px; }
.sb-btn .ico-s { width: 19px; height: 19px; vertical-align: -4px; margin-right: 6px; }
.sb-addr {
  margin-top: 16px; padding-top: 14px; border-top: 1px dashed rgba(255, 255, 255, .2);
  font-size: 12.5px; color: #b9c6e6; line-height: 1.7;
}

/* ---------------- FAQ ---------------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq { border: 1px solid var(--line); border-radius: 8px; background: var(--bg); }
.faq summary { padding: 14px 18px; cursor: pointer; font-weight: 600; color: var(--primary-dark); font-size: 15.5px; list-style: none; position: relative; padding-right: 44px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font-size: 20px; color: var(--primary); font-weight: 400; }
.faq[open] summary::after { content: "−"; }
.faq p { padding: 0 18px 16px; font-size: 14.5px; color: var(--text-light); }

/* ---------------- 设备/荣誉页 ---------------- */
.hn-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.hn-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: all .25s; }
.hn-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.hn-card img { width: 100%; aspect-ratio: 3/4; object-fit: cover; }
/* 荣誉页：三张大图资质 */
.hg-hero { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; max-width: 1150px; margin: 0 auto; }
.hg-big {
  margin: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: all .28s;
}
.hg-big:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.hg-big img {
  display: block; width: 100%; aspect-ratio: 3/4; object-fit: contain;
  background: #fff; padding: 10px; box-sizing: border-box;
}
.hg-cap {
  padding: 14px 16px; text-align: center; font-size: 15px; font-weight: 600;
  color: var(--primary-dark); background: var(--primary-pale); letter-spacing: 1px;
}
/* 荣誉页：资质文案区域 */
.honor-copy { max-width: 1400px; margin: 0 auto; }
.honor-copy h2 { font-size: 28px; color: var(--primary-dark); letter-spacing: 1px; margin-bottom: 18px; }
.honor-copy .hp { margin: 12px 0; font-size: 15px; text-align: justify; }
.honor-copy .sh-kicker { margin-bottom: 12px; }
/* 荣誉墙：一行5个 */
.hg-wall { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 18px; }
.hg-wall .hg-item img { aspect-ratio: 4/3; object-fit: contain; }

.hn-bd { padding: 18px 20px 22px; }
.hn-bd h2 { font-size: 17px; color: var(--primary-dark); }
.hn-org { font-size: 13px; color: var(--gold-dark); margin: 4px 0 8px; }
.hn-bd p { font-size: 14px; color: var(--text-light); }
.contact-table th { background: var(--primary-pale); }

/* ---------------- 搜索 / 404 ---------------- */
.search-lg { max-width: 640px; margin: 10px 0 30px; }
.search-lg input { padding: 13px 20px; font-size: 15px; }
.e404 { text-align: center; padding: 90px 20px 110px; }
.e404 h1 { font-size: 90px; color: var(--primary); font-family: Georgia, serif; line-height: 1; }
.e404 p { margin: 18px 0 30px; color: var(--text-light); font-size: 17px; }
.e404 .hero-btns { justify-content: center; }

/* ---------------- 页脚 ---------------- */
.site-foot { background: var(--primary-darker); color: #a8b6dd; }
.foot-main { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 36px; padding: 52px 20px 40px; }
.foot-col h3 { color: #fff; font-size: 16px; letter-spacing: 1px; margin-bottom: 14px; }
.foot-col h3.mt { margin-top: 20px; }
.foot-about p { font-size: 13.5px; line-height: 1.8; }
.foot-tel { margin-top: 14px; }
.foot-tel a { color: #ffd9a8; font-size: 21px; font-weight: 800; font-family: var(--font-num); margin-left: 6px; letter-spacing: .5px; }
.foot-links li { float: left; width: 50%; }
.foot-links a { display: block; padding: 4.5px 0; color: #a8b6dd; font-size: 13.5px; }
.foot-links a:hover { color: #fff; }
.foot-links::after { content: ""; display: block; clear: both; }
.foot-contact li { display: flex; gap: 8px; padding: 5px 0; font-size: 13.5px; line-height: 1.7; }
.foot-contact .ico-s { flex-shrink: 0; margin-top: 5px; color: #7f93c9; }
.foot-contact a { color: #cdd9f3; }
.foot-bar { border-top: 1px solid rgba(255, 255, 255, .12); padding: 18px 0; font-size: 12.5px; }
.foot-bar .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1100px) {
  .cat-mosaic { grid-template-columns: 320px minmax(0, 1fr); }
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .eq-grid { grid-template-columns: repeat(3, 1fr); }
  .eq-grid3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .hg-row { grid-template-columns: repeat(3, 1fr); }
  .hn-grid { grid-template-columns: repeat(2, 1fr); }
  .mainnav > ul > li > a { font-size: 15.5px; letter-spacing: 1px; }
  .site-search { max-width: 260px; }
}
@media (max-width: 1020px) {
  /* 视频背景仅电脑端显示：平板/手机恢复原渐变背景与原内边距 */
  .hero-video, .banner-video, .hero-mask, .banner-mask { display: none; }
  .hero { background: linear-gradient(128deg, #122a5e 0%, var(--primary) 45%, #2b57b8 100%); min-height: 0; display: block; }
  .list-banner {
    background: linear-gradient(120deg, var(--primary-dark) 0%, var(--primary) 55%, #2b57b8 100%);
    padding: 26px 0 34px; margin-bottom: 40px;
  }
  .banner-tall { display: block; min-height: 0; }
  .nav-toggle { display: flex; }
  .site-search { display: none; }
  .head-hot { margin-left: auto; flex-shrink: 0; }
  .mainnav { display: none; position: absolute; left: 0; right: 0; top: 100%; }
  body.nav-open .mainnav { display: block; }
  body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
  body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
  body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }
  .mainnav > ul { flex-direction: column; max-height: 72vh; overflow-y: auto; }
  .mainnav > ul > li { text-align: left; border-bottom: 1px solid rgba(255, 255, 255, .1); }
  .mainnav > ul > li > a { padding: 13px 22px; font-size: 16px; }
  .mainnav > ul > li.active > a::after { display: none; }
  .subnav {
    position: static; transform: none !important; opacity: 1; visibility: hidden; display: none;
    box-shadow: none; border-top: 0; background: rgba(255, 255, 255, .06); border-radius: 0; padding: 4px 0;
  }
  .mainnav li.opened .subnav, .mainnav li.has-sub.opened .subnav, .mainnav li.has-sub:hover .subnav, .mainnav li.has-sub:focus-within .subnav { display: block; visibility: visible; opacity: 1; }
  .mainnav li.opened > a { background: rgba(255, 255, 255, .1); }
  .subnav a { color: #cdd9f3; padding: 9px 40px; }
  .subnav a:hover { background: rgba(255, 255, 255, .08); color: #fff; }
  .hero-in { flex-direction: column; text-align: center; padding-top: 52px; padding-bottom: 52px; }
  .hero-art { max-width: 260px; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-btns, .hero-chips { justify-content: center; }
  .about-home { padding: 60px 0; }
  .about-in { grid-template-columns: 1fr; gap: 36px; }
  .about-txt h2 { font-size: 24px; }
  .about-home::before, .about-home::after { display: none; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .cat-mosaic { grid-template-columns: 1fr; }
  .cat-feature { padding: 24px 20px 22px; }
  .cat-grid { grid-template-columns: repeat(3, 1fr); gap: 14px; }
  .news-layout { grid-template-columns: 1fr; }
  .page-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}
@media (max-width: 720px) {
  .masthead .wrap { gap: 14px; padding-top: 5px; padding-bottom: 5px; }
  .head-hot .hot-label { display: none; }
  .head-hot a { font-size: 19px; padding-left: 12px; }
  .hero h1 { font-size: 30px; }
  .hero-h1s { font-size: 17px; letter-spacing: 2px; }
  .hero-art { display: none; }
  .sec { padding: 44px 0; }
  .sh-t h2 { font-size: 24px; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .cat-card { padding: 18px 14px 14px; }
  .cat-card strong { font-size: 16px; }
  .cat-desc { display: none; }
  .feat-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .why-card { padding: 20px 18px 18px; }
  .why-team { grid-template-columns: 1fr; gap: 30px; padding-bottom: 34px; margin-bottom: 34px; }
  .why-team-txt h3 { font-size: 24px; }
  .why-team-img::before { display: none; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .eq-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .eq-grid2 { grid-template-columns: 1fr; }
  .eq-grid3 { grid-template-columns: 1fr; }
  /* 仪器大全表格：移动端改为卡片式 */
  .eq-table thead { display: none; }
  .eq-table, .eq-table tbody { display: block; }
  .eq-table tbody tr {
    display: block; background: #fff; border: 1px solid var(--line); border-radius: 10px;
    padding: 8px 14px; margin-bottom: 12px; box-shadow: 0 3px 10px rgba(24, 56, 131, .05);
  }
  .eq-table tbody tr:nth-child(even) { background: #fff; }
  .eq-table tbody td { display: flex; border: 0; padding: 4px 0; font-size: 13.5px; text-align: left; }
  .eq-table tbody td::before {
    content: attr(data-label) "："; flex-shrink: 0; width: 82px;
    font-weight: 600; color: var(--primary);
  }
  .eq-table tbody td:nth-child(1)::before { color: var(--text-light); }
  .hg-row { grid-template-columns: repeat(2, 1fr); }
  .hn-grid { grid-template-columns: 1fr; }
  .hub-items { grid-template-columns: 1fr 1fr; }
  .rel-grid { grid-template-columns: 1fr; }
  .foot-main { grid-template-columns: 1fr; gap: 28px; padding: 40px 20px 30px; }
  .foot-links li { width: 33.3%; }
  .post { padding: 24px 18px; }
  .art-card { padding: 18px 16px; }
  .page-intro { padding: 20px 18px; }
  .page-intro h1 { font-size: 23px; }
  .post-head h1 { font-size: 21px; }
  .cta-in { flex-direction: column; text-align: center; }
  .btn-xl { width: 100%; justify-content: center; }
  .pager { flex-direction: column; }
  .news-list li a { white-space: normal; }
  .hub-cat { padding: 20px 16px; }
  .hub-cat-hd .sh-more { margin-left: 0; }
  .hub-cat-hd { align-items: flex-start; }
}
@media (max-width: 480px) {
  .head-hot { display: none; }
}
@media (max-width: 420px) {
  .cat-grid, .eq-grid, .hub-items, .steps { grid-template-columns: 1fr; }
  .cat-desc { display: block; }
  .foot-links li { width: 50%; }
}

/* 无障碍减弱动效 */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}