/* ============================================================
   中析研究所 - 全站样式（美化升级版）
   容器宽度：1400px | banner通栏
   ============================================================ */
:root{
  --primary:#0e5fa8;
  --primary-dark:#0a4479;
  --primary-deep:#082f54;
  --accent:#ff8a00;
  --accent-dark:#e67800;
  --sky:#eef5fb;
  --sky-2:#f7fafd;
  --text:#2b3440;
  --muted:#6b7684;
  --border:#e6ebf1;
  --radius:12px;
  --shadow:0 8px 24px rgba(10,68,121,.08);
  --shadow-lg:0 16px 40px rgba(10,68,121,.14);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;overflow-x:clip;}
body{
  font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  background:#fff;
  overflow-x:clip;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none;transition:color .2s;}
a:hover{color:var(--accent);}
img{max-width:100%;height:auto;display:block;}
ul,ol{list-style-position:outside;}
.container{max-width:1400px;margin:0 auto;padding:0 24px;}

/* ============ 顶部工具条 ============ */
.topbar{
  background:linear-gradient(90deg,var(--primary-deep),var(--primary-dark));
  font-size:13px;color:rgba(255,255,255,.82);
  padding:8px 0;
}
.topbar .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:6px;}
.topbar strong{color:#ffbe5c;font-weight:600;}

/* ============ 头部 ============ */
.site-header{
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(8px);
  box-shadow:0 2px 16px rgba(10,68,121,.08);
  position:sticky;top:0;z-index:99;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 0;flex-wrap:wrap;gap:12px;}
.logo{display:flex;align-items:center;gap:12px;}
.logo img{height:56px;width:auto;display:block;}
.logo-mark{
  width:52px;height:52px;
  background:linear-gradient(135deg,var(--primary),#1f8ad6);
  color:#fff;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:bold;letter-spacing:1px;
  box-shadow:0 6px 14px rgba(14,95,168,.35);
}
.logo-name{font-size:22px;font-weight:bold;color:var(--primary-dark);letter-spacing:1px;line-height:1.3;}
.logo-sub{font-size:12px;color:var(--muted);letter-spacing:.5px;}
.main-nav ul{display:flex;list-style:none;gap:6px;flex-wrap:wrap;}
.main-nav li{position:relative;}
.main-nav .caret{
  display:inline-block;font-size:12px;margin-left:6px;
  color:var(--accent);font-weight:bold;
  transition:transform .25s;
}
.main-nav a:hover .caret,.main-nav a.active .caret{transform:rotate(180deg);}
.main-nav .dropdown{
  display:none;position:absolute;top:calc(100% + 6px);left:50%;transform:translateX(-50%);
  min-width:176px;background:#fff;border:1px solid var(--border);border-radius:12px;
  box-shadow:0 16px 40px rgba(10,68,121,.16);padding:8px 0;z-index:100;
  list-style:none;text-align:left;
}
.main-nav .dropdown::before{
  content:"";position:absolute;top:-6px;left:0;right:0;height:6px;
}
.main-nav .has-dropdown:hover .dropdown,
.main-nav .has-dropdown:focus-within .dropdown{display:block;}
.main-nav .dropdown a{
  display:block;padding:9px 22px;font-size:14px;color:var(--text);
  white-space:nowrap;border-radius:0;
}
.main-nav .dropdown a:hover{background:var(--sky);color:var(--primary);}
.main-nav .dropdown a::after{display:none;}
.main-nav a{
  display:block;padding:10px 20px;color:var(--text);
  font-size:16px;font-weight:500;border-radius:8px;position:relative;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:4px;
  width:0;height:3px;border-radius:3px;background:var(--accent);
  transform:translateX(-50%);transition:width .25s;
}
.main-nav a:hover{color:var(--primary);background:var(--sky);}
.main-nav a:hover::after{width:40%;}
.main-nav a.active{color:#fff;background:linear-gradient(135deg,var(--primary),#1f8ad6);box-shadow:0 4px 12px rgba(14,95,168,.3);}
.main-nav a.active::after{display:none;}

/* ============ Banner（通栏） ============ */
.banner{
  position:relative;overflow:hidden;color:#fff;
  width:100%;
  min-height:calc(100vh - 88px);
  display:flex;align-items:center;justify-content:center;
  background:
    radial-gradient(ellipse 900px 420px at 85% -10%,rgba(255,138,0,.28),transparent 60%),
    radial-gradient(ellipse 700px 500px at -5% 110%,rgba(31,138,214,.5),transparent 60%),
    linear-gradient(120deg,var(--primary-deep) 0%,var(--primary-dark) 45%,#1173c4 100%);
  text-align:center;
}
.banner::before,.banner::after{
  content:"";position:absolute;border-radius:50%;
  border:1px solid rgba(255,255,255,.14);pointer-events:none;
}
.banner::before{width:520px;height:520px;top:-220px;right:-120px;}
.banner::after{width:360px;height:360px;bottom:-160px;left:-100px;}
.banner .container{position:relative;z-index:2;}
/* 视频背景层 */
.banner-video{
  position:absolute;inset:0;z-index:0;
  width:100%;height:100%;
  object-fit:cover;display:block;
}
.banner-mask{
  position:absolute;inset:0;z-index:1;display:block;
  background:linear-gradient(120deg,rgba(8,47,84,.38) 0%,rgba(10,68,121,.22) 45%,rgba(17,115,196,.15) 100%);
}
/* 移动端：隐藏视频，显示指定图片（图片缺失时自动回落到渐变背景） */
@media(max-width:768px){
  .banner-video{display:none;}
  .banner{
    background:
      linear-gradient(120deg,rgba(8,47,84,.85),rgba(10,68,121,.7)),
      url("../images/indexsp.jpg") center/cover no-repeat,
      linear-gradient(120deg,var(--primary-deep),#1173c4);
  }
}
.banner h1{font-size:42px;letter-spacing:2px;margin-bottom:18px;color:#fff;text-shadow:0 2px 6px rgba(0,0,0,.65),0 0 24px rgba(0,0,0,.4);}
.banner p{
  font-size:18px;margin:0 auto 34px;max-width:760px;
  letter-spacing:1px;color:#fff;text-shadow:0 2px 6px rgba(0,0,0,.65);
}
.btn{
  display:inline-block;
  background:linear-gradient(135deg,var(--accent),#ffab3d);
  color:#fff !important;padding:14px 44px;border-radius:999px;
  font-size:17px;font-weight:bold;letter-spacing:1px;
  box-shadow:0 10px 24px rgba(255,138,0,.4);
  transition:transform .2s,box-shadow .2s;
}
.btn:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(255,138,0,.5);}
/* 透明描边按钮（视频banner用） */
.btn-ghost{
  background:transparent !important;
  border:2px solid rgba(255,255,255,.85);
  box-shadow:none;
}
.btn-ghost:hover{
  background:rgba(255,255,255,.18) !important;
  border-color:#fff;box-shadow:none;
}

/* ============ 通用区块 ============ */
.section{padding:72px 0;}
.section.alt{background:linear-gradient(180deg,var(--sky-2),var(--sky));}
.section-title{text-align:center;margin-bottom:48px;}
.section-title h2{
  font-size:30px;color:var(--primary-dark);letter-spacing:1px;
  margin-bottom:10px;position:relative;display:inline-block;padding-bottom:16px;
}
.section-title h2::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:56px;height:4px;border-radius:4px;
  background:linear-gradient(90deg,var(--accent),#ffc46b);
}
.section-title p{color:var(--muted);font-size:16px;letter-spacing:2px;}

.grid{display:grid;gap:26px;}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(310px,1fr));}

.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:32px 26px;position:relative;overflow:hidden;
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--primary),#1f8ad6);
  transform:scaleX(0);transform-origin:left;transition:transform .3s;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent;}
.card:hover::before{transform:scaleX(1);}
.card h3{color:var(--primary-dark);font-size:19px;margin-bottom:12px;}
.card p{color:var(--muted);font-size:14px;}
.card .icon{
  width:64px;height:64px;border-radius:16px;margin-bottom:16px;
  background:linear-gradient(135deg,var(--sky),#dbeafe);
  display:flex;align-items:center;justify-content:center;font-size:30px;
}

/* ============ 图文双栏 ============ */
.split{display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:center;}
@media(max-width:900px){.split{grid-template-columns:1fr;}}
.split .section-title{text-align:left;margin-bottom:20px;}
.split .section-title h2::after{left:0;transform:none;}
.split .section-title h2{display:block;padding-bottom:14px;}
.img-box{
  background:
    radial-gradient(circle at 30% 25%,rgba(255,255,255,.9),transparent 45%),
    linear-gradient(135deg,#dce9f5,#bcd8ee);
  border-radius:var(--radius);min-height:300px;
  display:flex;align-items:center;justify-content:center;
  color:#4d779c;font-size:14px;text-align:center;padding:24px;
  border:1px solid #cbdbec;line-height:2;
}
.split .more{margin-top:22px;}
.split-img{width:100%;height:100%;min-height:320px;object-fit:cover;border-radius:var(--radius);border:1px solid #cbdbec;box-shadow:var(--shadow);}

/* ============ 数据条 ============ */
.stats{
  background:
    radial-gradient(ellipse 600px 260px at 90% 0%,rgba(255,138,0,.22),transparent 60%),
    linear-gradient(100deg,var(--primary-dark),#1173c4);
  color:#fff;padding:46px 0;
}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:24px;text-align:center;}
@media(max-width:768px){.stats-grid{grid-template-columns:repeat(2,1fr);gap:18px;}}
.stats-grid strong{display:block;font-size:38px;margin-bottom:4px;color:#ffbe5c;font-family:Georgia,serif;}
.stats-grid span{font-size:16px;opacity:.88;letter-spacing:2px;}

/* ============ 检测领域 ============ */
.field-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px;}
.field-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:30px 16px;text-align:center;color:var(--text);
  transition:transform .25s,box-shadow .25s;
}
.field-card .icon{
  width:70px;height:70px;border-radius:50%;margin:0 auto 14px;
  background:linear-gradient(135deg,var(--sky),#d6e8f8);
  display:flex;align-items:center;justify-content:center;font-size:34px;
  transition:transform .3s;
}
.field-card h3{font-size:17px;margin-bottom:6px;color:var(--text);}
.field-card p{font-size:12.5px;color:var(--muted);}
.field-card:hover{
  background:linear-gradient(150deg,var(--primary),#1173c4);
  border-color:transparent;color:#fff;
  transform:translateY(-6px);box-shadow:var(--shadow-lg);
}
.field-card:hover h3,.field-card:hover p{color:#fff;}
.field-card:hover .icon{background:rgba(255,255,255,.18);transform:scale(1.1);}

/* ============ 团队介绍（深色卡片风格，区别于简介） ============ */
.team-sec{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--primary-deep) 0%,var(--primary-dark) 55%,#1173c4 100%);}
.team-sec::before{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(255,255,255,.12);right:-100px;top:-140px;pointer-events:none;
}
.team-sec::after{
  content:"";position:absolute;width:260px;height:260px;border-radius:50%;
  background:rgba(255,138,0,.14);left:-80px;bottom:-90px;pointer-events:none;
}
.team-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:52px;align-items:center;position:relative;z-index:1;}
@media(max-width:900px){.team-wrap{grid-template-columns:1fr;}}
.team-photo{
  position:relative;border-radius:var(--radius);overflow:hidden;
  box-shadow:0 24px 60px rgba(0,0,0,.35);
  border:6px solid rgba(255,255,255,.16);
}
.team-photo img{width:100%;height:400px;object-fit:cover;display:block;}
.team-photo .ph{
  height:400px;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at 30% 25%,rgba(255,255,255,.16),transparent 45%),rgba(255,255,255,.1);
  color:rgba(255,255,255,.85);font-size:14px;text-align:center;line-height:2;
}
.team-photo .tag{
  position:absolute;left:18px;bottom:18px;
  background:rgba(8,30,50,.72);color:#fff;font-size:13px;
  padding:8px 18px;border-radius:999px;letter-spacing:1px;
  backdrop-filter:blur(4px);
}
.team-info .section-title{text-align:left;margin-bottom:18px;}
.team-info .section-title h2{display:block;padding-bottom:14px;color:#fff;}
.team-info .section-title h2::after{left:0;transform:none;}
.team-info .section-title p{color:rgba(255,255,255,.75);}
.team-info p.desc{color:rgba(255,255,255,.88);margin-bottom:14px;}
.team-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:22px 0 26px;}
.team-points li{
  list-style:none;display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);
  border-radius:8px;padding:9px 14px;font-size:14px;color:#fff;
}
.team-points li::before{content:"✓";color:#ffbe5c;font-weight:bold;}

/* ============ 我们的优势（8小格·大气版） ============ */
.adv-sec{
  position:relative;
  background:linear-gradient(180deg,#fff 0%,var(--sky-2) 100%);
  overflow:hidden;
}
.adv-sec::before{
  content:"";position:absolute;width:460px;height:460px;border-radius:50%;
  border:1px solid rgba(14,95,168,.1);left:-160px;top:-160px;pointer-events:none;
}
.adv-sec::after{
  content:"";position:absolute;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,0,.08),transparent 65%);
  right:-120px;bottom:-120px;pointer-events:none;
}
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;position:relative;z-index:1;}
@media(max-width:1100px){.adv-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:560px){.adv-grid{grid-template-columns:1fr;}}
.adv-card{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,#fff 55%,var(--sky-2));
  border-radius:16px;padding:34px 28px 30px;
  border:1px solid var(--border);
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.adv-card::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:4px;
  background:linear-gradient(90deg,var(--primary),#1f8ad6);
  transform:scaleX(0);transform-origin:left;transition:transform .35s;
}
.adv-card::after{
  content:attr(data-num);
  position:absolute;right:18px;bottom:6px;
  font-size:56px;font-weight:bold;line-height:1;
  color:rgba(14,95,168,.07);font-family:Georgia,serif;
  transition:color .3s;
}
.adv-card .icon{
  width:64px;height:64px;border-radius:16px;margin-bottom:18px;
  background:linear-gradient(135deg,var(--primary),#1f8ad6);
  box-shadow:0 10px 22px rgba(14,95,168,.32);
  display:flex;align-items:center;justify-content:center;font-size:30px;
  transition:transform .35s,box-shadow .35s;
}
.adv-card h3{font-size:18px;margin-bottom:10px;color:var(--primary-dark);letter-spacing:1px;}
.adv-card p{font-size:14px;color:var(--muted);line-height:1.8;}
.adv-card:hover{
  transform:translateY(-8px);
  box-shadow:0 20px 48px rgba(10,68,121,.18);
  border-color:transparent;
}
.adv-card:hover::before{transform:scaleX(1);}
.adv-card:hover::after{color:rgba(255,138,0,.16);}
.adv-card:hover .icon{transform:scale(1.12) rotate(-6deg);box-shadow:0 14px 30px rgba(14,95,168,.42);}

/* ============ 荣誉资质图片（2行×4张） ============ */
.honor-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
@media(max-width:1100px){.honor-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:560px){.honor-grid{grid-template-columns:1fr;}}
.honor-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:16px;text-align:center;
  transition:transform .25s,box-shadow .25s;
}
.honor-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
.honor-card .img-box{min-height:220px;margin-bottom:14px;padding:12px;}
.honor-card .cert-img{
  width:100%;height:220px;object-fit:contain;display:block;
  margin-bottom:14px;border-radius:8px;border:1px solid var(--border);background:#fff;
  cursor:zoom-in;transition:transform .25s,box-shadow .25s;
}
.honor-card:hover .cert-img{transform:scale(1.02);box-shadow:var(--shadow);}

/* ============ 图片灯箱 ============ */
.lightbox{
  position:fixed;inset:0;z-index:999;display:none;
  align-items:center;justify-content:center;
  background:rgba(8,30,50,.88);
  padding:40px;cursor:zoom-out;
}
.lightbox.open{display:flex;animation:lbIn .25s ease;}
@keyframes lbIn{from{opacity:0;}to{opacity:1;}}
.lightbox img{
  max-width:100%;max-height:100%;
  background:#fff;border-radius:8px;padding:8px;
  box-shadow:0 24px 70px rgba(0,0,0,.55);
  cursor:default;
}
.lightbox .lb-close{
  position:absolute;top:16px;right:28px;
  width:44px;height:44px;border:none;border-radius:50%;
  background:rgba(255,255,255,.15);color:#fff;font-size:26px;line-height:1;
  cursor:pointer;transition:background .2s;
}
.lightbox .lb-close:hover{background:var(--accent);}
.lightbox .lb-tip{
  position:absolute;bottom:20px;left:50%;transform:translateX(-50%);
  color:rgba(255,255,255,.7);font-size:13px;letter-spacing:1px;
}
.honor-card h3{font-size:16px;color:var(--text);font-weight:600;}

/* ============ 仪器设备轮播 ============ */
.equip-slider{position:relative;}
.equip-slider-viewport{overflow:hidden;border-radius:var(--radius);}
.equip-track{display:flex;transition:transform .45s ease;}
.equip-slide{flex:0 0 100%;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
@media(max-width:1100px){.equip-slide{grid-template-columns:repeat(2,1fr);}}
@media(max-width:560px){.equip-slide{grid-template-columns:1fr;}}
.equip-slider .arrow{
  position:absolute;top:50%;transform:translateY(-50%);z-index:5;
  width:48px;height:48px;border-radius:50%;border:none;cursor:pointer;
  background:linear-gradient(135deg,var(--primary-dark),var(--primary-deep));
  color:#fff;font-size:22px;line-height:1;
  box-shadow:0 8px 20px rgba(8,47,84,.4);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;
  transition:opacity .25s,visibility .25s,background .2s,transform .2s;
}
.equip-slider:hover .arrow{opacity:1;visibility:visible;}
.equip-slider .arrow:hover{background:linear-gradient(135deg,var(--accent),var(--accent-dark));}
.equip-slider .arrow.prev{left:-16px;}
.equip-slider .arrow.next{right:-16px;}
.equip-slider .arrow:disabled{cursor:default;background:linear-gradient(135deg,#5a7186,#48607a);}
.equip-slider .arrow:disabled:hover{background:linear-gradient(135deg,#5a7186,#48607a);}
.equip-slider:hover .arrow:disabled{opacity:.5;}
.equip-dots{display:flex;gap:10px;justify-content:center;margin-top:24px;}
.equip-dots button{
  width:11px;height:11px;border-radius:50%;border:none;cursor:pointer;
  background:#c6d4e2;transition:background .2s,transform .2s;padding:0;
}
.equip-dots button.active{background:var(--accent);transform:scale(1.25);}
.equip-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:transform .25s,box-shadow .25s;
}
.equip-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
.equip-card .img-box{min-height:200px;border-radius:0;border:none;}
.equip-card .equip-img{width:100%;height:200px;object-fit:cover;display:block;cursor:zoom-in;transition:transform .3s;}
.equip-card:hover .equip-img{transform:scale(1.04);}
.equip-card .body{padding:18px 20px 22px;border-top:3px solid var(--sky);}
.equip-card h3{font-size:16px;color:var(--primary-dark);margin-bottom:6px;}
.equip-card p{font-size:13px;color:var(--muted);}

/* ============ 图文展现（资讯） ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
@media(max-width:1100px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:680px){.news-grid{grid-template-columns:1fr;}}
.news-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s,box-shadow .25s;
}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
.news-card .img-box{min-height:200px;border-radius:0;border:none;}
.news-card .body{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column;}
.news-card h3{font-size:17px;margin-bottom:8px;line-height:1.5;}
.news-card h3 a{color:var(--text);}
.news-card h3 a:hover{color:var(--primary);}
.news-card p{font-size:13.5px;color:var(--muted);flex:1;}
.news-card .meta{font-size:12px;color:#9aa5b1;margin-top:14px;padding-top:12px;border-top:1px dashed var(--border);}

/* ============ 内页视频横幅（关于我们） ============ */
.page-banner{
  position:relative;overflow:hidden;color:#fff;
  min-height:calc(100vh - 88px);display:flex;align-items:center;
  background:
    radial-gradient(ellipse 600px 260px at 85% 0%,rgba(255,138,0,.2),transparent 60%),
    linear-gradient(120deg,var(--primary-deep),var(--primary-dark) 50%,#1173c4);
}
.page-banner .container{position:relative;z-index:2;}
.page-banner h1{font-size:34px;letter-spacing:2px;margin-bottom:10px;color:#fff;text-shadow:0 2px 6px rgba(0,0,0,.6);}
.page-banner .banner-h{font-size:34px;letter-spacing:2px;margin-bottom:10px;color:#fff;text-shadow:0 2px 6px rgba(0,0,0,.6);font-weight:bold;}
.page-banner.mid .container,.page-banner.short .container{text-align:center;}
.sub-wrap{
  display:inline-block;
  background:rgba(8,30,50,.38);
  border-radius:14px;
  padding:14px 30px;
}
.page-banner .sub{
  display:block;
  font-size:16px;color:rgba(255,255,255,.95);letter-spacing:1px;
  text-shadow:0 2px 6px rgba(0,0,0,.5);
  margin:0 0 6px;
}
.page-banner .sub:last-child{margin-bottom:0;}
.page-banner .breadcrumb{font-size:13px;color:rgba(255,255,255,.85);}
.page-banner .breadcrumb a{color:rgba(255,255,255,.9);}
.page-banner .breadcrumb a:hover{color:#ffbe5c;}
/* 荣誉资质等内页：缩小高度 */
.page-banner.short{min-height:420px;}
.page-banner.mid{min-height:560px;}
@media(max-width:768px){
  .page-banner.short{min-height:300px;}
  .page-banner.mid{min-height:360px;}
  .page-banner h1{font-size:26px;}
  .page-banner .banner-h{font-size:26px;}
  .page-banner.short .banner-video,.page-banner.mid .banner-video{display:none;}
}
@media(max-width:768px){
  .page-banner{min-height:62vh;}
  .page-banner .banner-video{display:none;}
}

/* ============ 向下滚动指示（鼠标图标·黑色，固定左上） ============ */
.scroll-hint{
  display:block;width:36px;height:58px;
  border:.5px solid #1c2b36;border-radius:20px;
  position:fixed;left:32px;top:200px;z-index:90;
  background:rgba(255,255,255,.7);
  transition:border-color .2s;
}
.scroll-hint:hover{border-color:var(--accent);}
.scroll-hint::before{
  content:"";position:absolute;top:10px;left:50%;margin-left:-2px;
  width:4px;height:10px;border-radius:2px;background:#1c2b36;
  animation:mousewheel 1.8s ease-out infinite;
}
@keyframes mousewheel{
  0%{top:10px;opacity:1;}
  75%{top:28px;opacity:0;}
  100%{top:10px;opacity:0;}
}
/* banner外面包屑条 */
.crumb-bar{background:var(--sky-2);border-bottom:1px solid var(--border);padding:13px 0;}
.crumb-bar .breadcrumb{margin:0;}
.crumb-bar .breadcrumb a{color:var(--muted);}
.crumb-bar .breadcrumb a:hover{color:var(--primary);}

/* ============ 列表页 ============ */
.page-head{
  background:
    radial-gradient(ellipse 500px 200px at 90% 0%,rgba(255,138,0,.18),transparent 60%),
    linear-gradient(110deg,var(--primary-deep),var(--primary-dark) 60%,#1173c4);
  padding:44px 0;color:#fff;
}
.page-head h1{font-size:30px;letter-spacing:1px;}
.page-head .breadcrumb{margin-top:10px;font-size:13px;color:rgba(255,255,255,.75);}
.page-head .breadcrumb a{color:rgba(255,255,255,.85);}
.page-head .breadcrumb a:hover{color:#ffbe5c;}
/* 服务列表条目：左色条+图标+内容+箭头 */
.list-item{
  display:flex;align-items:center;gap:22px;
  background:linear-gradient(160deg,#fff 60%,var(--sky-2));
  border:1px solid var(--border);border-left:5px solid var(--primary);
  border-radius:14px;padding:24px 28px;margin-bottom:18px;
  position:relative;overflow:hidden;
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.list-item::after{
  content:"›";position:absolute;right:22px;top:50%;
  transform:translateY(-50%) translateX(6px);
  font-size:26px;color:var(--primary);opacity:0;
  transition:opacity .25s,transform .25s;
}
.list-item:hover{
  transform:translateX(6px);
  box-shadow:var(--shadow-lg);border-color:transparent;border-left-color:var(--accent);
}
.list-item:hover::after{opacity:1;transform:translateY(-50%) translateX(0);}
.list-item .li-icon{
  width:88px;min-height:56px;height:auto;flex:none;align-self:stretch;
  border-radius:14px;
  background:linear-gradient(135deg,var(--primary),#1f8ad6);
  color:#fff;font-size:34px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(14,95,168,.3);
}
.list-item .li-main{flex:1;min-width:0;}
.list-item h2{font-size:18px;margin-bottom:8px;line-height:1.5;}
.list-item h2 a{color:var(--text);}
.list-item h2 a:hover{color:var(--primary);}
.list-item .li-foot{margin-top:12px;}
.list-item .tag{
  display:inline-block;background:var(--sky);color:var(--primary);
  border-radius:6px;padding:2px 12px;font-size:12px;font-weight:normal;
}
.list-item p{color:var(--muted);font-size:14px;}
.list-item .date{flex:none;color:#9aa5b1;font-size:13px;white-space:nowrap;margin-right:30px;}
@media(max-width:640px){
  .list-item .date{display:none;}
  .list-item .li-icon{display:none;}
}
.pagination{display:flex;gap:10px;justify-content:center;margin-top:40px;}
.pagination a,.pagination span{
  padding:9px 16px;border:1px solid var(--border);border-radius:8px;
  font-size:14px;color:var(--text);background:#fff;transition:.2s;
}
.pagination a:hover{border-color:var(--primary);color:var(--primary);}
.pagination .current{background:linear-gradient(135deg,var(--primary),#1f8ad6);color:#fff;border-color:transparent;font-weight:bold;}

/* ============ 内容页 ============ */
.article-layout{display:grid;grid-template-columns:1fr 340px;gap:36px;padding:48px 0;align-items:start;}
@media(max-width:960px){.article-layout{grid-template-columns:1fr;}}
.article{
  background:#fff;border:1px solid var(--border);border-radius:16px;
  padding:40px 44px;box-shadow:var(--shadow);
}
@media(max-width:640px){.article{padding:26px 20px;}}
.article h1{font-size:28px;line-height:1.5;margin-bottom:16px;color:var(--primary-deep);}
.article .meta{
  display:flex;flex-wrap:wrap;gap:8px;
  border-bottom:1px solid var(--border);padding-bottom:18px;margin-bottom:28px;
}
.article .meta span{
  background:var(--sky-2);border:1px solid var(--border);border-radius:999px;
  padding:4px 16px;font-size:13px;color:var(--muted);
}
.article h2{
  font-size:20px;color:var(--primary-dark);
  margin:30px 0 14px;padding-left:14px;position:relative;line-height:1.5;
}
.article h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--accent),#ffc46b);
}
.article p{margin-bottom:15px;color:#3a4654;}
.article ul,.article ol{margin:0 0 15px 24px;color:#3a4654;}
.article li{margin-bottom:6px;}
.article strong{color:var(--primary-dark);}
/* 文章标签与上下篇 */
.article-tags{
  margin-top:30px;padding-top:20px;border-top:1px dashed var(--border);
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.article-tags b{font-size:14px;color:var(--primary-dark);flex:none;}
.article-tags a{
  background:var(--sky);color:var(--primary);border-radius:999px;
  padding:4px 16px;font-size:13px;transition:background .2s,color .2s;
}
.article-tags a:hover{background:var(--primary);color:#fff;}
.article-nav{display:flex;gap:16px;margin-top:22px;}
@media(max-width:560px){.article-nav{flex-direction:column;}}
.article-nav a{
  flex:1;background:var(--sky-2);border:1px solid var(--border);border-radius:12px;
  padding:14px 18px;font-size:14px;color:var(--text);
  transition:background .2s,border-color .2s,color .2s;
}
.article-nav a:hover{background:var(--sky);border-color:var(--primary);color:var(--primary);}
.article-nav a.next{text-align:right;}
.article-nav small{display:block;color:#9aa5b1;font-size:12px;margin-bottom:4px;}
/* 侧边栏吸顶 */
.sidebar{position:sticky;top:104px;}
.sidebar .box{
  border:1px solid var(--border);border-radius:14px;
  padding:24px;margin-bottom:24px;background:#fff;overflow:hidden;
  box-shadow:var(--shadow);
}
.sidebar .box h2{
  font-size:17px;color:var(--primary-dark);
  border-bottom:2px solid var(--sky);padding-bottom:12px;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.sidebar .box h2::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--accent);}
.sidebar .box ul{list-style:none;margin:0;}
.sidebar .box li{padding:9px 0;border-bottom:1px dashed var(--border);font-size:14px;}
.sidebar .box li:last-child{border-bottom:none;}
.sidebar .box li a{color:var(--text);}
.sidebar .box li a:hover{color:var(--primary);}
.sidebar .contact{
  background:linear-gradient(150deg,var(--primary-deep),#1173c4);
  border:none;color:#fff;position:relative;overflow:hidden;
}
.sidebar .contact::after{
  content:"";position:absolute;width:160px;height:160px;border-radius:50%;
  background:rgba(255,255,255,.06);top:-60px;right:-60px;
}
.sidebar .contact h2{color:#fff !important;border-color:rgba(255,255,255,.25);}
.sidebar .contact h2::before{background:#ffbe5c;}
.sidebar .contact p{font-size:14px;line-height:2.2;position:relative;z-index:1;}
/* 侧栏咨询报价卡片 */
.consult-side{text-align:left;}
.consult-side .desc{font-size:13.5px;color:var(--muted);margin:14px 0 18px;line-height:1.8;}
.consult-side .btn{display:block;text-align:center;padding-left:0;padding-right:0;}

/* 内容页页面导航 */
.anchor{scroll-margin-top:104px;}
.page-nav a{display:block;position:relative;padding-left:16px;}
.page-nav a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:#c6d4e2;transition:background .2s;
}
.page-nav a.active{color:var(--primary);font-weight:600;}
.page-nav a.active::before{background:var(--accent);}

/* 相关阅读 */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media(max-width:1100px){.rel-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:680px){.rel-grid{grid-template-columns:1fr;}}
.rel-card{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  padding:24px 26px;display:flex;flex-direction:column;gap:10px;
  transition:transform .25s,box-shadow .25s;
}
.rel-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);}
.rel-card h3{font-size:16px;line-height:1.5;}
.rel-card h3 a{color:var(--text);}
.rel-card h3 a:hover{color:var(--primary);}
.rel-card p{font-size:13.5px;color:var(--muted);flex:1;}
.rel-card .meta{font-size:12px;color:#9aa5b1;}

/* ============ 实验室体系（1主+6副布局） ============ */
.lab-wrap{display:grid;grid-template-columns:1fr 2.1fr;gap:26px;align-items:stretch;}
.lab-main{
  position:relative;overflow:hidden;
  display:flex;flex-direction:column;justify-content:center;align-items:center;
  text-align:center;padding:40px 30px;border-radius:16px;color:#fff;
  background:linear-gradient(150deg,var(--primary-deep) 0%,var(--primary-dark) 50%,#1173c4 100%);
  box-shadow:0 16px 40px rgba(10,68,121,.3);
  transition:transform .3s,box-shadow .3s;
}
.lab-main::before{
  content:"";position:absolute;width:300px;height:300px;border-radius:50%;
  border:1px solid rgba(255,255,255,.14);top:-100px;right:-80px;pointer-events:none;
}
.lab-main::after{
  content:"";position:absolute;width:200px;height:200px;border-radius:50%;
  background:rgba(255,138,0,.15);left:-60px;bottom:-70px;pointer-events:none;
}
.lab-main:hover{transform:translateY(-6px);box-shadow:0 22px 52px rgba(10,68,121,.4);}
.lab-main .icon{
  width:84px;height:84px;border-radius:22px;margin-bottom:18px;font-size:42px;
  background:rgba(255,255,255,.16);
  display:flex;align-items:center;justify-content:center;position:relative;z-index:1;
}
.lab-main h3{font-size:24px;letter-spacing:3px;margin-bottom:12px;position:relative;z-index:1;}
.lab-main p{font-size:14px;color:rgba(255,255,255,.85);position:relative;z-index:1;}
.lab-side{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
@media(max-width:1000px){
  .lab-wrap{grid-template-columns:1fr;}
  .lab-side{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:560px){.lab-side{grid-template-columns:1fr;}}

/* ============ 仪器设备页 ============ */
.eq-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;}
@media(max-width:1100px){.eq-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:600px){.eq-grid{grid-template-columns:1fr;}}
.eq-mg{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
@media(max-width:1000px){.eq-mg{grid-template-columns:repeat(2,1fr);}}
@media(max-width:600px){.eq-mg{grid-template-columns:1fr;}}
/* 设备概况：左标题右内容 */
.eq-intro{display:grid;grid-template-columns:340px 1fr;gap:0;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-lg);}
@media(max-width:900px){.eq-intro{grid-template-columns:1fr;}}
.eq-intro-side{
  position:relative;overflow:hidden;padding:40px 34px;color:#fff;
  background:linear-gradient(150deg,var(--primary-deep),var(--primary-dark) 55%,#1173c4);
  display:flex;flex-direction:column;justify-content:center;
}
.eq-intro-side::before{
  content:"";position:absolute;width:260px;height:260px;border-radius:50%;
  border:1px solid rgba(255,255,255,.14);top:-90px;right:-70px;pointer-events:none;
}
.eq-intro-side::after{
  content:"";position:absolute;width:180px;height:180px;border-radius:50%;
  background:rgba(255,138,0,.15);left:-60px;bottom:-60px;pointer-events:none;
}
.eq-intro-side h3{font-size:24px;letter-spacing:2px;margin-bottom:12px;position:relative;z-index:1;}
.eq-intro-side p{font-size:14px;color:rgba(255,255,255,.82);position:relative;z-index:1;}
.eq-intro-side .big{
  margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,255,255,.2);
  position:relative;z-index:1;
}
.eq-intro-side .big strong{display:block;font-size:34px;color:#ffbe5c;font-family:Georgia,serif;line-height:1.2;}
.eq-intro-side .big span{font-size:13px;color:rgba(255,255,255,.75);}
.eq-intro-main{
  background:#fff;padding:40px 42px;
  display:flex;flex-direction:column;justify-content:center;
}
.eq-intro-main p{font-size:15px;color:#3a4654;margin-bottom:14px;}
.eq-labs{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px;}
.eq-labs span{
  background:var(--sky);color:var(--primary-dark);
  border:1px solid #d3e4f3;border-radius:999px;
  padding:6px 18px;font-size:13px;font-weight:600;
}

/* ============ 荣誉资质页 ============ */
/* 资质体系：左宫格右文 */
.sys-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:center;}
@media(max-width:960px){.sys-wrap{grid-template-columns:1fr;}}
.sys-text p{color:var(--muted);font-size:16px;margin-bottom:12px;}
.sys-points{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
@media(max-width:520px){.sys-points{grid-template-columns:1fr;}}
.sys-point{
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--border);border-radius:12px;
  padding:18px 16px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;
}
.sys-point:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.sys-point .ic{
  width:46px;height:46px;flex:none;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),#1f8ad6);
  color:#fff;font-size:22px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 16px rgba(14,95,168,.3);
}
.sys-point b{display:block;font-size:15px;color:var(--primary-dark);}
.sys-point span{font-size:12.5px;color:var(--muted);}

/* 核心资质：三大证书卡片（徽章式） */
.core-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;}
@media(max-width:1000px){.core-grid{grid-template-columns:1fr;}}
.core-card{
  position:relative;background:#fff;border:1px solid var(--border);
  border-radius:18px;overflow:hidden;text-align:center;
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.core-card::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:4px;
  background:linear-gradient(90deg,var(--primary),#1f8ad6);
  transform:scaleX(0);transform-origin:left;transition:transform .35s;z-index:1;
}
.core-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent;}
.core-card:hover::before{transform:scaleX(1);}
.core-card .cert-img{width:100%;height:280px;object-fit:contain;display:block;background:#fff;padding:22px 22px 0;cursor:zoom-in;}
.core-body{padding:0 24px 28px;position:relative;}
.core-tag{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:78px;padding:7px 20px;margin:-24px auto 14px;
  border-radius:999px;position:relative;
  background:linear-gradient(135deg,var(--primary),#1f8ad6);color:#fff;
  font-family:Georgia,serif;font-size:20px;font-weight:800;letter-spacing:2px;
  box-shadow:0 10px 22px rgba(14,95,168,.35);
  border:3px solid #fff;
}
.core-body h3{font-size:17px;color:var(--primary-dark);margin-bottom:8px;}
.core-body .core-desc{font-size:13.5px;color:var(--muted);}

/* 质量保证措施：3列×2行填满 */
.qa-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
@media(max-width:1000px){.qa-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:620px){.qa-grid{grid-template-columns:1fr;}}

/* 荣誉证书：5列 */
.honor-grid.five{grid-template-columns:repeat(5,1fr);}
@media(max-width:1200px){.honor-grid.five{grid-template-columns:repeat(3,1fr);}}
@media(max-width:700px){.honor-grid.five{grid-template-columns:repeat(2,1fr);}}
.complaint-banner{
  margin-top:30px;border-radius:14px;padding:22px 32px;text-align:center;
  background:linear-gradient(120deg,var(--primary-deep),#1173c4);
  color:rgba(255,255,255,.9);font-size:15px;letter-spacing:1px;
  box-shadow:var(--shadow-lg);
}
.complaint-banner strong{color:#ffbe5c;font-size:17px;margin:0 4px;}

/* ============ 发展历程时间轴 ============ */
.timeline{position:relative;max-width:1000px;margin:0 auto;padding:12px 0 4px;}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:4px;
  transform:translateX(-50%);border-radius:4px;
  background:linear-gradient(180deg,var(--primary),#1f8ad6);
}
.tl-item{position:relative;width:50%;padding:0 44px 46px;}
.tl-item:nth-child(odd){left:0;text-align:right;}
.tl-item:nth-child(even){left:50%;text-align:left;}
.tl-item::before{
  content:"";position:absolute;top:8px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:4px solid var(--primary);z-index:1;
  box-shadow:0 0 0 5px rgba(14,95,168,.14);
}
.tl-item:nth-child(odd)::before{right:-8px;}
.tl-item:nth-child(even)::before{left:-8px;}
.tl-year{
  display:inline-block;color:#fff;font-size:17px;font-weight:bold;
  background:linear-gradient(135deg,var(--primary),#1f8ad6);
  padding:3px 20px;border-radius:999px;margin-bottom:12px;letter-spacing:1px;
  box-shadow:0 6px 16px rgba(14,95,168,.32);
}
.tl-card{
  display:inline-block;text-align:left;background:#fff;
  border:1px solid var(--border);border-radius:12px;
  padding:16px 20px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.tl-card h3{font-size:15px;color:var(--primary-dark);margin-bottom:6px;}
.tl-card p{font-size:13.5px;color:var(--muted);}
@media(max-width:760px){
  .timeline::before{left:10px;transform:none;}
  .tl-item{width:100%;left:0 !important;text-align:left !important;padding:0 0 34px 38px;}
  .tl-item::before{left:2px !important;right:auto !important;}
}

/* ============ 关于我们单页 ============ */
/* ============ 检测方针（美化版） ============ */
.culture-sec{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,var(--sky-2) 0%,#fff 100%);
}
.culture-sec::before{
  content:"";position:absolute;width:460px;height:460px;border-radius:50%;
  border:1px solid rgba(14,95,168,.1);right:-150px;top:-190px;pointer-events:none;
}
.culture-sec .section-title p{color:var(--muted);}
.culture-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;z-index:1;}
@media(max-width:1000px){.culture-grid{grid-template-columns:repeat(2,1fr);}}
.culture-card{
  position:relative;overflow:hidden;text-align:center;
  background:#fff;
  border:1px solid var(--border);
  border-radius:18px;padding:40px 20px 34px;
  box-shadow:var(--shadow);
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.culture-card::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:4px;
  background:linear-gradient(90deg,var(--accent),#ffc46b);
  transform:scaleX(0);transform-origin:left;transition:transform .35s;
}
.culture-card .zh{
  display:block;font-size:30px;font-weight:bold;letter-spacing:8px;
  margin-bottom:4px;text-indent:8px;
  background:linear-gradient(180deg,var(--primary-dark),#1f8ad6);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.culture-card .en{
  display:block;font-size:12px;letter-spacing:3px;text-transform:uppercase;
  color:#9db3c6;margin-bottom:14px;
}
.culture-card .divider{
  width:28px;height:3px;border-radius:3px;margin:0 auto 14px;
  background:linear-gradient(90deg,var(--accent),#ffc46b);
}
.culture-card p{font-size:13.5px;color:var(--muted);}
.culture-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
  border-color:transparent;
}
.culture-card:hover::before{transform:scaleX(1);}
.principle-banner{
  position:relative;z-index:1;
  margin-top:34px;border-radius:16px;padding:28px 40px;
  background:linear-gradient(120deg,var(--primary-deep),#1173c4);
  color:#fff;text-align:center;font-size:16px;letter-spacing:2px;
  box-shadow:var(--shadow-lg);
}
.principle-banner strong{color:#ffbe5c;margin:0 6px;}

.step-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;}
@media(max-width:1000px){.step-flow{grid-template-columns:repeat(3,1fr);}}
@media(max-width:680px){.step-flow{grid-template-columns:1fr 1fr;}}
.step-card{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  padding:28px 16px;text-align:center;transition:transform .3s,box-shadow .3s;
}
.step-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
.step-card .num{
  width:46px;height:46px;border-radius:50%;margin:0 auto 14px;
  background:linear-gradient(135deg,var(--primary),#1f8ad6);color:#fff;
  font-size:18px;font-weight:bold;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(14,95,168,.3);
}
.step-card h3{font-size:16px;color:var(--primary-dark);margin-bottom:8px;}
.step-card p{font-size:13px;color:var(--muted);}

.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
@media(max-width:800px){.contact-grid{grid-template-columns:1fr;}}
.contact-card{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  padding:28px;display:flex;gap:16px;align-items:flex-start;transition:.3s;
}
.contact-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);}
.contact-card .icon{
  width:52px;height:52px;flex:none;border-radius:12px;
  background:linear-gradient(135deg,var(--sky),#d6e8f8);
  display:flex;align-items:center;justify-content:center;font-size:24px;
}
.contact-card h3{font-size:16px;color:var(--primary-dark);margin-bottom:6px;}
.contact-card p{font-size:14px;color:var(--muted);}
.contact-card .val{font-size:17px;font-weight:600;color:var(--text);}

/* ============ 单页 ============ */
.page-content{padding:48px 0;}
.page-content h2{
  font-size:22px;color:var(--primary-dark);
  margin:34px 0 16px;padding-left:14px;position:relative;
}
.page-content h2:first-child{margin-top:0;}
.page-content h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--accent),#ffc46b);
}
.page-content p{margin-bottom:15px;color:#3a4654;max-width:1100px;}
.page-content ul,.page-content ol{margin:0 0 15px 24px;color:#3a4654;}
.page-content li{margin-bottom:7px;}

/* ============ 底部咨询引导区（通栏） ============ */
.cta-sec{
  position:relative;overflow:hidden;
  padding:44px 0;
  background:linear-gradient(120deg,var(--primary-deep) 0%,var(--primary-dark) 55%,#1173c4 100%);
}
.cta-sec::before{
  content:"";position:absolute;width:380px;height:380px;border-radius:50%;
  border:1px solid rgba(255,255,255,.12);right:-130px;top:-170px;pointer-events:none;
}
.cta-sec::after{
  content:"";position:absolute;width:260px;height:260px;border-radius:50%;
  background:rgba(255,138,0,.14);left:-90px;bottom:-110px;pointer-events:none;
}
.cta-wrap{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
}
.cta-info h2{color:#fff;font-size:26px;letter-spacing:1px;margin-bottom:8px;line-height:1.4;}
.cta-info p{color:rgba(255,255,255,.85);font-size:15px;}
.cta-actions{display:flex;align-items:center;flex-wrap:wrap;gap:18px;flex:none;}
.cta-actions .btn{padding:14px 70px;}

/* ============ 移动端导航与自适应优化 ============ */
.nav-toggle{
  display:none;width:46px;height:42px;flex:none;
  border:1px solid var(--border);border-radius:10px;background:#fff;
  cursor:pointer;position:relative;padding:0;
}
.nav-toggle span,.nav-toggle::before,.nav-toggle::after{
  display:block;width:20px;height:2px;background:var(--primary-dark);
  border-radius:2px;position:absolute;left:12px;transition:all .25s;
}
.nav-toggle::before{content:"";top:13px;}
.nav-toggle span{top:20px;}
.nav-toggle::after{content:"";top:27px;}
.nav-toggle.open::before{top:20px;transform:rotate(45deg);}
.nav-toggle.open span{opacity:0;}
.nav-toggle.open::after{top:20px;transform:rotate(-45deg);}

@media(max-width:900px){
  .header-inner{flex-wrap:nowrap;padding:12px 0;}
  .logo img{height:44px;}
  .nav-toggle{display:block;}
  .main-nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:#fff;border-top:1px solid var(--border);
    box-shadow:0 16px 32px rgba(10,68,121,.14);
    padding:10px 16px 16px;max-height:72vh;overflow-y:auto;
  }
  .main-nav.open{display:block;}
  .main-nav ul{flex-direction:column;gap:2px;}
  .main-nav li{width:100%;}
  .main-nav a{padding:12px 14px;font-size:15px;}
  .main-nav .dropdown{
    position:static;transform:none;min-width:0;margin:2px 0 8px;
    box-shadow:none;border:1px solid var(--border);
    background:var(--sky-2);border-radius:10px;padding:4px 0;
  }
  .main-nav .dropdown a{padding:9px 16px 9px 26px;font-size:14px;}
  .sidebar{position:static;}
  .equip-slider .arrow{width:38px;height:38px;font-size:18px;}
  .equip-slider .arrow.prev{left:6px;}
  .equip-slider .arrow.next{right:6px;}
  .team-photo img,.team-photo .ph{height:240px;}
  .split-img{min-height:200px;}
  .eq-intro-side,.eq-intro-main{padding:26px 22px;}
  .eq-intro-side .big strong{font-size:28px;}
  .stats{padding:32px 0;}
  .stats-grid strong{font-size:28px;}
  .banner .btn{padding:12px 32px;font-size:15px;}
  .section{padding:44px 0;}
  .section-title{margin-bottom:32px;}
  .section-title h2{font-size:22px;}
  .article-layout{padding:28px 0;}
  .page-banner .sub{font-size:18px;}
  .sub-wrap{padding:10px 18px;}
  .crumb-bar{padding:10px 0;}
  .scroll-hint{display:none;}
  .lb-close{top:10px;right:14px;}
  .honor-card .cert-img{height:170px;}
  .core-card .cert-img{height:200px;}
  .principle-banner{padding:20px 18px;font-size:14px;letter-spacing:0;}
  .culture-card{padding:28px 14px 24px;}
  .culture-card .zh{font-size:24px;letter-spacing:4px;text-indent:4px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .cta-sec{padding:36px 22px;}
  .cta-wrap{text-align:center;justify-content:center;}
  .cta-info h2{font-size:20px;}
  .cta-info p{font-size:14px;}
  .cta-actions .btn{padding:12px 46px;}
}

/* ============ 图标CSS替代样式（无emoji，纯CSS绘制） ============ */
/* 检测领域/实验室卡片：标题上方渐变短横条 */
.field-card h3::before{
  content:"";display:block;width:38px;height:6px;border-radius:3px;
  background:linear-gradient(90deg,var(--primary),#1f8ad6);
  margin:0 auto 12px;transition:background .25s;
}
.field-card:hover h3::before{background:rgba(255,255,255,.85);}
/* 优势/质量保证/设备管理卡片标题：前置小色块 */
.adv-card h3::before,.card h3::before,.contact-card h3::before{
  content:"";display:inline-block;width:10px;height:10px;border-radius:3px;
  background:linear-gradient(135deg,var(--accent),#ffc46b);
  margin-right:9px;vertical-align:1px;
}
.card h3::before,.contact-card h3::before{background:linear-gradient(135deg,var(--primary),#1f8ad6);}
/* 资质体系要点：前置小色块 */
.sys-point::before{
  content:"";flex:none;width:10px;height:10px;border-radius:3px;
  background:linear-gradient(135deg,var(--primary),#1f8ad6);
  box-shadow:0 4px 10px rgba(14,95,168,.3);
}
.sys-point .ic-ghost{display:none;}
/* 物理实验室主卡：发光圆环 */
.lab-main h3::before{
  content:"";display:block;width:54px;height:54px;border-radius:50%;
  border:3px solid rgba(255,255,255,.5);
  background:radial-gradient(circle at 50% 42%,rgba(255,255,255,.28),transparent 62%);
  margin:0 auto 18px;
}
/* 服务列表条目：左侧文档样式色块（CSS绘制） */
.list-item::before{
  content:"";flex:none;width:88px;min-height:56px;align-self:stretch;
  border-radius:14px;
  background:
    repeating-linear-gradient(180deg,transparent 0 12px,rgba(255,255,255,.92) 12px 15px,transparent 15px 27px) center/36px 46px no-repeat,
    linear-gradient(135deg,var(--primary),#1f8ad6);
  box-shadow:0 8px 18px rgba(14,95,168,.3);
}
@media(max-width:640px){
  .list-item::before{display:none;}
}

/* ============ 页脚 ============ */
.site-footer{
  background:linear-gradient(180deg,#0c2136,var(--primary-deep));
  color:#a8bacb;padding:56px 0 0;font-size:14px;position:relative;
}
.site-footer::before{
  content:"";height:4px;display:block;
  background:var(--accent);
  position:absolute;top:0;left:0;right:0;
}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:36px;padding-bottom:38px;}
.site-footer h3{color:#fff;font-size:17px;margin-bottom:18px;letter-spacing:1px;}
.site-footer ul{list-style:none;margin:0;}
.site-footer li{margin-bottom:10px;}
.site-footer a{color:#a8bacb;}
.site-footer a:hover{color:#ffbe5c;}
.site-footer p{color:#8fa5ba;line-height:1.9;}
.copyright{
  border-top:1px solid rgba(255,255,255,.1);
  text-align:center;padding:18px 0;font-size:13px;color:#7d93a8;
}

/* ============ 浮动咨询 ============ */
.float-contact{
  position:fixed;right:20px;bottom:110px;z-index:98;
  background:linear-gradient(150deg,var(--primary),#1173c4);
  color:#fff;border-radius:14px;padding:16px 18px;text-align:center;font-size:13px;
  box-shadow:0 12px 28px rgba(10,68,121,.35);
}
.float-contact::before{
  content:"☎";display:block;font-size:26px;margin-bottom:6px;
}
.float-contact strong{display:block;font-size:16px;margin-bottom:2px;letter-spacing:.5px;}

/* ============ 响应式 ============ */
@media(max-width:768px){
  .banner{min-height:52vh;padding:40px 0;}
  .banner h1{font-size:26px;}
  .banner p{font-size:14px;}
  .section{padding:44px 0;}
  .section-title h2{font-size:22px;}
  .page-head h1{font-size:22px;}
}