/* 河南安研智能仪器仪表有限公司 官网 - 蓝白工业风 */
:root{
  --blue:#0a6b78;
  --blue-dark:#00525d;
  --blue-deep:#032e35;
  --blue-light:#e8f4f6;
  --accent:#2bb5c4;
  --text:#23303c;
  --text-sub:#5a6b7a;
  --line:#dbe6ef;
  --bg:#ffffff;
  --bg-soft:#f5f9fc;
  --shadow:0 4px 20px rgba(14,95,168,.08);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:"Microsoft YaHei","PingFang SC","Segoe UI",sans-serif;color:var(--text);background:var(--bg);line-height:1.7;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.container{width:min(1200px,92%);margin:0 auto;}

/* 顶部信息条 */
.topbar{background:var(--blue-deep);color:#bcd4ea;font-size:13px;}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px;}
.topbar a{color:#ffd98a;}

/* 导航 */
header.nav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;box-shadow:0 2px 10px rgba(7,46,84,.06);}
header.nav .container{display:flex;align-items:center;justify-content:space-between;height:72px;}
.logo{display:flex;align-items:center;gap:12px;}
.logo .mark{display:none;}
.logo img{height:54px;width:auto;}
.logo .name{font-size:19px;font-weight:700;color:var(--blue-deep);letter-spacing:1px;}
.logo .en{font-size:10px;color:var(--text-sub);letter-spacing:.5px;}
nav.menu{display:flex;gap:6px;}
nav.menu a{padding:8px 18px;border-radius:6px;font-size:15px;color:var(--text);transition:.2s;}
nav.menu a:hover{color:var(--blue);background:var(--blue-light);}
nav.menu a.active{color:#fff;background:var(--blue);}
.nav-toggle{display:none;font-size:26px;color:var(--blue-deep);background:none;border:none;cursor:pointer;}

/* 首屏横幅 */
.hero{position:relative;background:linear-gradient(120deg,var(--blue-deep) 0%,var(--blue) 55%,#1a7ec2 100%);color:#fff;overflow:hidden;}
.hero .bg-img{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.22;}
.hero .inner{position:relative;padding:110px 0 120px;}
.hero .tag{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);padding:5px 16px;border-radius:99px;font-size:13px;letter-spacing:2px;margin-bottom:22px;}
.hero h1{font-size:44px;letter-spacing:2px;line-height:1.35;margin-bottom:16px;}
.hero h1 span{color:#8fe3ec;}
.hero p{font-size:17px;color:#d8e9f7;max-width:640px;margin-bottom:34px;}
.btn-row{display:flex;gap:16px;flex-wrap:wrap;}
.btn{display:inline-block;padding:13px 34px;border-radius:8px;font-size:15px;letter-spacing:1px;transition:.2s;cursor:pointer;border:none;}
.btn.primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(43,181,196,.35);}
.btn.primary:hover{background:#22a4b2;transform:translateY(-2px);}
.btn.ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55);}
.btn.ghost:hover{background:rgba(255,255,255,.12);}
.hero .stats{display:flex;gap:0;margin-top:70px;border-top:1px solid rgba(255,255,255,.2);padding-top:30px;flex-wrap:wrap;}
.hero .stats .item{flex:1;min-width:150px;padding-right:20px;}
.hero .stats b{display:block;font-size:34px;color:#8fe3ec;font-family:Arial,sans-serif;}
.hero .stats i{font-style:normal;font-size:13px;color:#bcd4ea;letter-spacing:1px;}

/* 区块通用 */
section.block{padding:80px 0;}
section.block.soft{background:var(--bg-soft);}
.sec-head{text-align:center;margin-bottom:50px;}
.sec-head .kicker{color:var(--accent);font-size:13px;letter-spacing:4px;text-transform:uppercase;}
.sec-head h2{font-size:32px;color:var(--blue-deep);letter-spacing:2px;margin:8px 0 12px;}
.sec-head .bar{width:56px;height:4px;background:linear-gradient(90deg,var(--blue),var(--accent));margin:0 auto;border-radius:2px;}
.sec-head p{color:var(--text-sub);margin-top:16px;font-size:15px;}

/* 卡片 */
.grid{display:grid;gap:26px;}
.g4{grid-template-columns:repeat(4,1fr);}
.g3{grid-template-columns:repeat(3,1fr);}
.g2{grid-template-columns:repeat(2,1fr);}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:34px 28px;transition:.25s;box-shadow:var(--shadow);}
.card:hover{transform:translateY(-6px);border-color:var(--accent);box-shadow:0 12px 30px rgba(14,95,168,.14);}
.card .icon{width:56px;height:56px;border-radius:12px;background:var(--blue-light);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:20px;}
.card h3{font-size:19px;color:var(--blue-deep);margin-bottom:12px;letter-spacing:1px;}
.card p{font-size:14px;color:var(--text-sub);}

/* 数字亮点 */
.numcard{text-align:center;padding:30px 16px;}
.numcard b{font-size:42px;color:var(--blue);font-family:Arial,sans-serif;}
.numcard b small{font-size:18px;}
.numcard p{color:var(--text-sub);font-size:14px;margin-top:6px;letter-spacing:1px;}

/* 产品卡 */
.product-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.25s;display:flex;flex-direction:column;}
.product-card:hover{transform:translateY(-6px);box-shadow:0 14px 34px rgba(14,95,168,.15);border-color:var(--accent);}
.product-card .pic{background:#0d1620;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;overflow:hidden;}
.product-card .pic img{max-height:88%;max-width:88%;object-fit:contain;}
.product-card .body{padding:24px 26px 28px;flex:1;display:flex;flex-direction:column;}
.product-card h3{font-size:19px;color:var(--blue-deep);margin-bottom:8px;}
.product-card .sub{font-size:13px;color:var(--accent);margin-bottom:14px;letter-spacing:1px;}
.product-card ul{list-style:none;font-size:13.5px;color:var(--text-sub);flex:1;}
.product-card ul li{padding:4px 0 4px 20px;position:relative;}
.product-card ul li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:2px;background:var(--accent);}
.product-card .more{display:inline-block;margin-top:18px;color:var(--blue);font-size:14px;font-weight:600;}
.product-card .more:hover{color:var(--accent);}

/* 场景卡 */
.scene-card{position:relative;border-radius:12px;overflow:hidden;aspect-ratio:4/3;}
.scene-card img{width:100%;height:100%;object-fit:cover;transition:.4s;}
.scene-card:hover img{transform:scale(1.06);}
.scene-card .cap{position:absolute;left:0;right:0;bottom:0;padding:44px 22px 18px;background:linear-gradient(transparent,rgba(7,46,84,.9));color:#fff;}
.scene-card .cap b{font-size:17px;letter-spacing:1px;display:block;}
.scene-card .cap span{font-size:12.5px;color:#b9d4ea;}

/* 页面小横幅 */
.page-hero{position:relative;background:linear-gradient(120deg,var(--blue-deep),var(--blue));color:#fff;padding:70px 0 66px;}
.page-hero .bg-img{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.16;}
.page-hero .inner{position:relative;}
.page-hero h1{font-size:34px;letter-spacing:2px;margin-bottom:10px;}
.page-hero p{color:#cfe2f4;font-size:15px;}
.breadcrumb{font-size:13px;color:#9fb9d4;margin-top:18px;}
.breadcrumb a:hover{color:#fff;}

/* 表格 */
table.spec{width:100%;border-collapse:collapse;background:#fff;font-size:14.5px;}
table.spec th{background:var(--blue);color:#fff;padding:13px 18px;text-align:left;font-weight:600;letter-spacing:1px;}
table.spec td{padding:12px 18px;border-bottom:1px solid var(--line);}
table.spec tr:nth-child(even) td{background:var(--bg-soft);}
table.spec td:first-child{color:var(--blue-deep);font-weight:600;white-space:nowrap;}

/* 时间线 */
.timeline{position:relative;padding-left:30px;}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--line);}
.timeline .item{position:relative;padding:0 0 30px 22px;}
.timeline .item::before{content:"";position:absolute;left:-30px;top:6px;width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid var(--accent);}
.timeline .item b{display:block;font-size:16px;color:var(--blue-deep);margin-bottom:6px;}
.timeline .item p{font-size:14px;color:var(--text-sub);}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start;}
.info-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px dashed var(--line);}
.info-item .icon{width:48px;height:48px;flex:none;border-radius:10px;background:var(--blue-light);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:22px;}
.info-item b{display:block;font-size:15.5px;color:var(--blue-deep);margin-bottom:4px;}
.info-item p{font-size:14px;color:var(--text-sub);}
form.quote{background:#fff;border:1px solid var(--line);border-radius:12px;padding:34px;box-shadow:var(--shadow);}
form.quote h3{font-size:20px;color:var(--blue-deep);margin-bottom:6px;}
form.quote .tip{font-size:13px;color:var(--text-sub);margin-bottom:22px;}
form.quote .row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
form.quote label{display:block;font-size:13.5px;color:var(--text);margin:14px 0 6px;}
form.quote input,form.quote textarea,form.quote select{width:100%;border:1px solid var(--line);border-radius:8px;padding:11px 14px;font-size:14px;font-family:inherit;background:var(--bg-soft);transition:.2s;}
form.quote input:focus,form.quote textarea:focus,form.quote select:focus{outline:none;border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(43,181,196,.15);}
form.quote textarea{min-height:110px;resize:vertical;}
form.quote .ok{display:none;margin-top:16px;padding:12px 16px;border-radius:8px;background:#e8f8ee;color:#177245;font-size:14px;}

/* 服务流程 */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(6,1fr);gap:18px;}
.step{background:#fff;border:1px solid var(--line);border-radius:10px;padding:26px 14px;text-align:center;position:relative;}
.step::before{counter-increment:s;content:counter(s,decimal-leading-zero);display:block;font-size:26px;font-weight:700;color:#c8dcf0;font-family:Arial;}
.step b{display:block;font-size:15.5px;color:var(--blue-deep);margin:8px 0 6px;}
.step span{font-size:12.5px;color:var(--text-sub);}

/* CTA */
.cta{background:linear-gradient(120deg,var(--blue-deep),var(--blue));border-radius:16px;color:#fff;padding:56px 60px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;}
.cta h2{font-size:28px;letter-spacing:2px;margin-bottom:10px;}
.cta p{color:#cfe2f4;font-size:15px;}
.cta .phone{font-size:30px;font-weight:700;color:#8fe3ec;font-family:Arial;}

/* 页脚 */
footer{background:var(--blue-deep);color:#9fb9d4;padding:60px 0 0;margin-top:80px;}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1);}
footer h4{color:#fff;font-size:16px;letter-spacing:1px;margin-bottom:18px;}
footer p{font-size:13.5px;line-height:2;}
footer a{font-size:13.5px;display:block;padding:3px 0;}
footer a:hover{color:#fff;}
footer .copy{padding:22px 0;font-size:12.5px;text-align:center;letter-spacing:1px;}

/* 文章页 */
.article{background:#fff;border:1px solid var(--line);border-radius:12px;padding:46px 52px;box-shadow:var(--shadow);}
.article h1{font-size:28px;color:var(--blue-deep);letter-spacing:1px;line-height:1.5;margin-bottom:10px;}
.article .meta{font-size:13px;color:var(--text-sub);padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:28px;}
.article h2{font-size:21px;color:var(--blue-dark);margin:34px 0 14px;padding-left:12px;border-left:4px solid var(--accent);}
.article h3{font-size:17px;color:var(--blue-deep);margin:24px 0 10px;}
.article p{font-size:15px;color:var(--text);margin:12px 0;}
.article ul,.article ol{padding-left:24px;margin:12px 0;}
.article li{font-size:14.5px;margin:6px 0;}
.article blockquote{background:var(--blue-light);border-left:4px solid var(--blue);border-radius:0 8px 8px 0;padding:16px 20px;margin:18px 0;font-size:14.5px;color:var(--blue-dark);}
.article img{border-radius:10px;margin:18px auto;border:1px solid var(--line);}
.article table{margin:18px 0;}
.knowledge-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px;transition:.25s;box-shadow:var(--shadow);display:block;}
.knowledge-card:hover{transform:translateY(-5px);border-color:var(--accent);}
.knowledge-card .kt{font-size:11px;color:var(--accent);letter-spacing:2px;margin-bottom:10px;}
.knowledge-card h3{font-size:18px;color:var(--blue-deep);margin-bottom:10px;line-height:1.5;}
.knowledge-card p{font-size:13.5px;color:var(--text-sub);}
.side-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px;box-shadow:var(--shadow);margin-bottom:24px;}
.side-card h3{font-size:16px;color:var(--blue-deep);margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--accent);}
.side-card a{display:block;font-size:14px;padding:8px 0;border-bottom:1px dashed var(--line);color:var(--text-sub);}
.side-card a:hover{color:var(--blue);}
.kw{display:inline-block;background:var(--blue-light);color:var(--blue-dark);border-radius:6px;padding:3px 12px;font-size:12.5px;margin:4px 6px 4px 0;}
.feat-img{border-radius:12px;overflow:hidden;box-shadow:var(--shadow);}
.feat-img img{width:100%;}
.spec-img{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;box-shadow:var(--shadow);}
.spec-img img{width:100%;border-radius:8px;}

/* 响应式 */
@media (max-width:960px){
  .g4{grid-template-columns:repeat(2,1fr);}
  .g3{grid-template-columns:repeat(2,1fr);}
  .g2{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(3,1fr);}
  .contact-grid{grid-template-columns:1fr;}
  footer .cols{grid-template-columns:1fr 1fr;}
  nav.menu{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:14px;border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(7,46,84,.12);}
  nav.menu.open{display:flex;}
  .nav-toggle{display:block;}
  .hero h1{font-size:32px;}
  .hero .inner{padding:70px 0 80px;}
  .topbar .container{justify-content:center;}
  .topbar .mail{display:none;}
}
@media (max-width:600px){
  .g4,.g3{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,1fr);}
  footer .cols{grid-template-columns:1fr;}
  .hero h1{font-size:26px;}
  .cta{padding:36px 28px;}
  form.quote .row{grid-template-columns:1fr;}
  .article{padding:26px 20px;}
  .article h1{font-size:22px;}
}