/* ===========================================================
   琛宝智能 · 官网样式表
   纯手写，无框架依赖
   =========================================================== */

:root{
  --blue:#1261C4;
  --blue-dark:#0A3D7C;
  --blue-light:#3D8BEF;
  --orange:#FF7A1A;
  --orange-dark:#E85D04;
  --ink:#1F2A37;
  --gray:#5A6675;
  --gray-light:#8A94A3;
  --line:#E6EAF0;
  --bg:#FFFFFF;
  --bg-soft:#F5F7FA;
  --radius:14px;
  --shadow:0 6px 24px rgba(16,42,84,.08);
  --shadow-hover:0 14px 38px rgba(16,42,84,.16);
  --max:1200px;
  --nav-h:76px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,textarea,select{font-family:inherit;font-size:15px;}

.wrap{max-width:var(--max);margin:0 auto;padding:0 24px;}
.wrap-narrow{max-width:900px;margin:0 auto;padding:0 24px;}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 28px;border-radius:999px;
  font-size:15px;font-weight:600;
  transition:all .25s ease;white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 18px rgba(255,122,26,.32);}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,122,26,.4);}
.btn-outline{border:1.5px solid rgba(255,255,255,.7);color:#fff;}
.btn-outline:hover{background:#fff;color:var(--blue-dark);}
.btn-blue{background:var(--blue);color:#fff;}
.btn-blue:hover{background:var(--blue-dark);transform:translateY(-2px);}
.btn-ghost{border:1.5px solid var(--line);color:var(--ink);background:#fff;}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue);}

/* ---------- 顶部条 ---------- */
.topbar{
  background:var(--blue-dark);color:rgba(255,255,255,.85);
  font-size:13px;padding:7px 0;
}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;}
.topbar span{display:inline-flex;align-items:center;gap:6px;}
.topbar a:hover{color:#fff;}

/* ---------- 导航 ---------- */
.header{
  position:sticky;top:0;z-index:100;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .3s;
}
.header.scrolled{box-shadow:0 4px 20px rgba(16,42,84,.09);}
.nav{height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:24px;}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:42px;height:42px;border-radius:11px;
  background:linear-gradient(135deg,var(--blue) 0%,var(--blue-light) 100%);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:19px;
  letter-spacing:-.5px;box-shadow:0 4px 12px rgba(18,97,196,.3);
}
.logo-txt strong{display:block;font-size:19px;letter-spacing:.5px;line-height:1.2;}
.logo-txt small{display:block;font-size:11px;color:var(--gray-light);letter-spacing:2px;text-transform:uppercase;}

.menu{display:flex;align-items:center;gap:6px;}
.menu a{
  position:relative;padding:10px 16px;font-size:15px;font-weight:500;color:var(--ink);border-radius:8px;
}
.menu a:hover{color:var(--blue);}
.menu a.active{color:var(--blue);font-weight:600;}
.menu a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;
  background:var(--orange);border-radius:2px;
}
.nav-phone{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-phone .num{font-size:20px;font-weight:800;color:var(--orange);letter-spacing:.5px;}
.nav-phone .num small{display:block;font-size:11px;color:var(--gray-light);font-weight:400;letter-spacing:1px;}
.burger{display:none;width:42px;height:42px;border-radius:9px;border:1px solid var(--line);position:relative;}
.burger i{position:absolute;left:11px;width:18px;height:2px;background:var(--ink);transition:.3s;}
.burger i:nth-child(1){top:14px;}
.burger i:nth-child(2){top:20px;}
.burger i:nth-child(3){top:26px;}
.burger.open i:nth-child(1){transform:translateY(6px) rotate(45deg);}
.burger.open i:nth-child(2){opacity:0;}
.burger.open i:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- Hero 轮播 ---------- */
.hero{position:relative;height:560px;overflow:hidden;background:var(--blue-dark);}
.hero-slide{
  position:absolute;inset:0;opacity:0;transition:opacity .8s ease;
  display:flex;align-items:center;
}
.hero-slide.active{opacity:1;}
.hero-bg{position:absolute;inset:0;}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,32,66,.92) 0%,rgba(8,32,66,.68) 55%,rgba(8,32,66,.28) 100%);}
.hero-inner{position:relative;z-index:2;color:#fff;max-width:640px;}
.hero-tag{
  display:inline-block;padding:6px 16px;border-radius:999px;
  background:rgba(255,122,26,.18);border:1px solid rgba(255,122,26,.5);
  color:#FFB27A;font-size:13px;font-weight:600;margin-bottom:20px;letter-spacing:1px;
}
.hero h1{font-size:46px;line-height:1.25;margin-bottom:18px;letter-spacing:.5px;}
.hero h1 em{font-style:normal;color:#FFB27A;}
/* 轮播第 2、3 屏用 h2 保证全页只有一个 H1，视觉与 h1 保持一致 */
.hero .hero-h{font-size:46px;line-height:1.25;margin-bottom:18px;letter-spacing:.5px;}
.hero .hero-h em{font-style:normal;color:#FFB27A;}
.hero p{font-size:17px;color:rgba(255,255,255,.82);margin-bottom:30px;line-height:1.9;}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;}
.hero-dots{position:absolute;left:0;right:0;bottom:32px;z-index:3;display:flex;justify-content:center;gap:10px;}
.hero-dots button{width:28px;height:4px;border-radius:2px;background:rgba(255,255,255,.35);transition:.3s;}
.hero-dots button.active{background:var(--orange);width:44px;}
.hero-arrow{
  position:absolute;top:50%;transform:translateY(-50%);z-index:3;
  width:48px;height:48px;border-radius:50%;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:20px;display:grid;place-items:center;transition:.25s;
}
.hero-arrow:hover{background:#fff;color:var(--blue-dark);}
.hero-prev{left:24px;}
.hero-next{right:24px;}

/* ---------- 区块通用 ---------- */
.section{padding:90px 0;}
.section-soft{background:var(--bg-soft);}
.sec-head{text-align:center;margin-bottom:54px;}
.sec-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:3px;
  color:var(--orange);text-transform:uppercase;margin-bottom:12px;
}
.sec-head h2{font-size:34px;margin-bottom:14px;letter-spacing:.5px;}
.sec-head p{color:var(--gray);font-size:16px;max-width:620px;margin:0 auto;}
.sec-head::after{
  content:"";display:block;width:56px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--orange),var(--blue));
  margin:22px auto 0;
}

/* ---------- 产品卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}

.pcard{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:all .3s ease;display:flex;flex-direction:column;
}
.pcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:transparent;}
.pcard-img{
  height:200px;display:grid;place-items:center;position:relative;overflow:hidden;
  background:linear-gradient(160deg,#EEF4FD 0%,#DCE8F9 100%);
}
.pcard-img img{height:150px;width:auto;transition:transform .4s ease;}
.pcard:hover .pcard-img img{transform:scale(1.06);}
.pcard-badge{
  position:absolute;top:12px;left:12px;
  background:var(--orange);color:#fff;font-size:12px;font-weight:600;
  padding:4px 12px;border-radius:999px;
}
.pcard-body{padding:22px;flex:1;display:flex;flex-direction:column;}
.pcard-body h3{font-size:18px;margin-bottom:8px;}
.pcard-body p{color:var(--gray);font-size:14px;flex:1;margin-bottom:16px;}
.pcard-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:16px;}
.pcard-tags span{
  font-size:12px;color:var(--blue);background:#EEF4FD;
  padding:4px 10px;border-radius:6px;
}
.pcard-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--blue);font-weight:600;font-size:14px;
}
.pcard-link:hover{color:var(--orange);gap:10px;}

/* ---------- 优势 ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border-radius:var(--radius);overflow:hidden;}
.feat{background:#fff;padding:34px 28px;transition:.3s;}
.feat:hover{background:var(--bg-soft);}
.feat-ico{
  width:54px;height:54px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue) 0%,var(--blue-light) 100%);
  color:#fff;font-size:24px;font-weight:700;margin-bottom:18px;
}
.feat h3{font-size:17px;margin-bottom:10px;}
.feat p{color:var(--gray);font-size:14px;line-height:1.8;}

/* ---------- 数据统计 ---------- */
.stats{
  background:linear-gradient(120deg,var(--blue-dark) 0%,var(--blue) 60%,var(--blue-light) 100%);
  padding:64px 0;color:#fff;position:relative;overflow:hidden;
}
.stats::before{
  content:"";position:absolute;right:-120px;top:-120px;width:400px;height:400px;
  border-radius:50%;background:rgba(255,255,255,.05);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.stat{text-align:center;}
.stat b{display:block;font-size:44px;font-weight:800;letter-spacing:1px;line-height:1.2;}
.stat b i{font-style:normal;font-size:22px;margin-left:2px;}
.stat span{font-size:15px;color:rgba(255,255,255,.8);}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.case{
  position:relative;border-radius:var(--radius);overflow:hidden;
  aspect-ratio:4/3;background:linear-gradient(140deg,#D9E6F8,#B9D0EE);
  display:grid;place-items:center;cursor:pointer;
}
.case img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.case:hover img{transform:scale(1.08);}
.case-mask{
  position:absolute;inset:auto 0 0 0;padding:18px 16px;
  background:linear-gradient(transparent,rgba(8,32,66,.9));color:#fff;
}
.case-mask strong{font-size:15px;display:block;}
.case-mask span{font-size:12px;opacity:.8;}
.case-ph{
  width:100%;height:100%;display:grid;place-items:center;
  background:linear-gradient(140deg,#DFEAF9 0%,#C2D6F0 100%);
}
.case-ph svg{width:56%;opacity:.75;}

/* ---------- 关于 ---------- */
.about-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;}
.about-txt p{color:var(--gray);margin-bottom:18px;line-height:2;}
.about-visual{
  border-radius:var(--radius);overflow:hidden;background:linear-gradient(140deg,#DFEAF9,#C2D6F0);
  aspect-ratio:5/4;display:grid;place-items:center;position:relative;
}
.about-visual svg{width:60%;}
.about-badge{
  position:absolute;bottom:-24px;left:-24px;background:#fff;border-radius:var(--radius);
  padding:20px 26px;box-shadow:var(--shadow);text-align:center;
}
.about-badge b{display:block;font-size:30px;color:var(--orange);}
.about-badge span{font-size:13px;color:var(--gray);}

/* ---------- 新闻 ---------- */
.news-list{display:flex;flex-direction:column;gap:2px;}
.news-item{
  display:grid;grid-template-columns:100px 1fr auto;gap:26px;align-items:center;
  padding:24px;border-radius:var(--radius);transition:.3s;border:1px solid transparent;
}
.news-item:hover{background:#fff;border-color:var(--line);box-shadow:var(--shadow);}
.news-date{
  text-align:center;background:var(--bg-soft);border-radius:10px;padding:12px 0;
}
.news-item:hover .news-date{background:var(--blue);color:#fff;}
.news-date b{display:block;font-size:26px;line-height:1.1;}
.news-date span{font-size:12px;opacity:.7;}
.news-item h3{font-size:17px;margin-bottom:6px;transition:.2s;}
.news-item:hover h3{color:var(--blue);}
.news-item p{color:var(--gray-light);font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.news-more{color:var(--blue);font-size:14px;font-weight:600;white-space:nowrap;}

/* ---------- CTA ---------- */
.cta{
  background:linear-gradient(120deg,var(--orange-dark),var(--orange));
  padding:60px 0;color:#fff;text-align:center;
}
.cta h2{font-size:32px;margin-bottom:12px;}
.cta p{opacity:.92;margin-bottom:28px;font-size:16px;}
.cta .btn-outline{background:#fff;color:var(--orange-dark);border-color:#fff;}
.cta .btn-outline:hover{background:rgba(255,255,255,.9);}

/* ---------- 页脚 ---------- */
.footer{background:#0E1B2C;color:rgba(255,255,255,.66);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer h3,.footer h4{color:#fff;font-size:16px;margin-bottom:20px;position:relative;padding-left:12px;}
.footer h3::before,.footer h4::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;background:var(--orange);border-radius:2px;}
.footer li{margin-bottom:11px;font-size:14px;}
.footer li a:hover{color:var(--orange);}
.footer-about p{font-size:14px;line-height:1.9;margin-bottom:18px;}
.contact-line{display:flex;gap:10px;margin-bottom:12px;font-size:14px;align-items:flex-start;}
.contact-line b{color:#fff;font-weight:600;flex-shrink:0;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0;
  font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
}

/* ---------- 面包屑 & 页头 ---------- */
.page-head{
  background:linear-gradient(120deg,var(--blue-dark),var(--blue));
  padding:64px 0 58px;color:#fff;text-align:center;
}
.page-head h1{font-size:36px;margin-bottom:12px;}
.page-head p{color:rgba(255,255,255,.8);}
.crumb{padding:16px 0;font-size:13px;color:var(--gray-light);border-bottom:1px solid var(--line);background:var(--bg-soft);}
.crumb a:hover{color:var(--blue);}
.crumb span{margin:0 8px;}

/* ---------- 产品页 ---------- */
.pfilter{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:40px;}
.pfilter button{
  padding:9px 22px;border-radius:999px;border:1px solid var(--line);
  background:#fff;font-size:14px;color:var(--gray);transition:.25s;
}
.pfilter button:hover{border-color:var(--blue);color:var(--blue);}
.pfilter button.active{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:600;}
.price{color:var(--orange);font-weight:800;font-size:19px;}
.price small{font-size:13px;font-weight:500;}

/* ---------- 关于页 ---------- */
.timeline{position:relative;padding-left:34px;}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--line);}
.tl-item{position:relative;padding-bottom:32px;}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:7px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--blue);
}
.tl-item b{color:var(--blue);font-size:19px;display:block;margin-bottom:6px;}
.tl-item p{color:var(--gray);font-size:14px;}
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.cert{
  border:1px solid var(--line);border-radius:var(--radius);padding:26px 18px;text-align:center;
  transition:.3s;background:#fff;
}
.cert:hover{border-color:var(--blue);transform:translateY(-4px);box-shadow:var(--shadow);}
.cert-ico{font-size:30px;margin-bottom:10px;}
.cert b{display:block;font-size:15px;margin-bottom:6px;}
.cert span{font-size:13px;color:var(--gray-light);}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;}
.cinfo{display:flex;flex-direction:column;gap:20px;}
.cinfo-item{display:flex;gap:16px;align-items:flex-start;padding:20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;}
.cinfo-ico{width:44px;height:44px;border-radius:11px;background:#EEF4FD;color:var(--blue);display:grid;place-items:center;flex-shrink:0;font-size:19px;}
.cinfo-item b{display:block;margin-bottom:4px;}
.cinfo-item span{color:var(--gray);font-size:14px;}
.cinfo-photo{position:relative;margin:0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);}
.cinfo-photo img{display:block;width:100%;height:230px;object-fit:cover;}
.cinfo-photo figcaption{position:absolute;left:0;right:0;bottom:0;padding:28px 16px 12px;color:#fff;font-size:13px;background:linear-gradient(transparent,rgba(15,35,60,.75));}
.cinfo-photo::after{content:'实景参考';position:absolute;top:12px;right:12px;padding:3px 10px;border-radius:99px;background:rgba(255,122,26,.92);color:#fff;font-size:12px;}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow);}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.form-row label i{color:var(--orange);font-style:normal;}
.form-row input,.form-row textarea,.form-row select{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:9px;
  transition:.2s;background:#fff;
}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{
  outline:0;border-color:var(--blue);box-shadow:0 0 0 3px rgba(18,97,196,.1);
}
.form-row textarea{resize:vertical;min-height:110px;}
.form-err{color:#E5484D;font-size:13px;margin-top:6px;display:none;}
.form-err.show{display:block;}
.form-ok{
  background:#E8F7EF;border:1px solid #A6E3C2;color:#0F7B47;
  padding:14px;border-radius:9px;font-size:14px;display:none;margin-bottom:18px;
}
.form-ok.show{display:block;}
.map-ph{
  background:linear-gradient(140deg,#E4EDF9,#CBDCF2);border-radius:var(--radius);
  aspect-ratio:16/7;display:grid;place-items:center;color:var(--blue);
  border:1px solid var(--line);text-align:center;margin-top:28px;
}
.map-box{margin-top:28px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;}
.map-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:15px 20px;border-bottom:1px solid var(--line);}
.map-head b{font-size:15px;}
.map-head span{color:var(--gray);font-size:13px;}
.map-head .btn{margin-left:auto;padding:8px 16px;font-size:13px;}
.map-view{position:relative;}
.map-view img{display:block;width:100%;height:420px;object-fit:cover;}
.map-pin{
  position:absolute;left:49.5%;top:38%;transform:translateX(-50%);
  padding:6px 14px;border-radius:99px;background:var(--blue);color:#fff;
  font-size:13px;white-space:nowrap;box-shadow:0 6px 18px rgba(18,97,196,.35);
}
.map-pin::after{content:'';position:absolute;left:50%;bottom:-6px;transform:translateX(-50%);
  border:6px solid transparent;border-top-color:var(--blue);border-bottom:0;}

/* ---------- 悬浮客服 ---------- */
.floatbar{position:fixed;right:18px;bottom:88px;z-index:90;display:flex;flex-direction:column;gap:10px;}
.fbtn{
  width:52px;height:52px;border-radius:13px;background:#fff;
  box-shadow:0 6px 20px rgba(16,42,84,.16);display:grid;place-items:center;
  color:var(--blue);transition:.25s;position:relative;
}
.fbtn:hover{background:var(--blue);color:#fff;transform:translateY(-3px);}
.fbtn svg{width:22px;height:22px;}
.fbtn .tip{
  position:absolute;right:62px;top:50%;transform:translateY(-50%);
  background:var(--ink);color:#fff;font-size:13px;padding:7px 12px;border-radius:7px;
  white-space:nowrap;opacity:0;pointer-events:none;transition:.25s;
}
.fbtn:hover .tip{opacity:1;}
.fbtn.top{background:var(--blue);color:#fff;}
.fbtn.top:hover{background:var(--blue-dark);}

/* ---------- 弹层 ---------- */
.modal{
  position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;
  background:rgba(11,26,45,.6);padding:24px;backdrop-filter:blur(3px);
}
.modal.show{display:flex;}
.modal-box{
  background:#fff;border-radius:16px;max-width:820px;width:100%;max-height:86vh;overflow:auto;
  position:relative;animation:pop .28s ease;
}
@keyframes pop{from{opacity:0;transform:translateY(20px) scale(.98);}to{opacity:1;transform:none;}}
.modal-close{
  position:absolute;right:16px;top:16px;width:34px;height:34px;border-radius:50%;
  background:#F1F4F8;color:var(--ink);display:grid;place-items:center;font-size:20px;z-index:5;
}
.modal-close:hover{background:var(--orange);color:#fff;}
.modal-body{display:grid;grid-template-columns:.85fr 1.15fr;}
.modal-img{background:linear-gradient(160deg,#EEF4FD,#DCE8F9);display:grid;place-items:center;padding:30px;min-height:280px;}
.modal-img img{height:220px;}
.modal-txt{padding:34px 32px;}
.modal-txt h3{font-size:24px;margin-bottom:8px;}
.modal-txt .price{font-size:22px;display:block;margin-bottom:16px;}
.spec{width:100%;border-collapse:collapse;font-size:14px;margin-bottom:20px;}
.spec th,.spec td{border-bottom:1px solid var(--line);padding:10px 0;text-align:left;}
.spec th{width:96px;color:var(--gray-light);font-weight:500;}
.spec td{color:var(--ink);}
/* 企业档案卡（about 页工商登记信息） */
.entity-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px 8px;margin-top:24px;}
.entity-card .spec{margin-bottom:6px;}
.entity-card .spec th{width:150px;}
@media(max-width:600px){
  .entity-card{padding:16px;}
  .entity-card .spec th{width:110px;}
  .map-view img{height:300px;}
  .map-pin{left:50%;top:40%;font-size:12px;}
  .map-head .btn{margin-left:0;width:100%;justify-content:center;}
}

/* ---------- 滚动动画 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease;}
.reveal.in{opacity:1;transform:none;}

/* ---------- 行业解决方案 ---------- */
.sol-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 24px 22px;transition:all .3s ease;
}
.sol-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:transparent;}
.sol-badge{align-self:flex-start;background:#EEF4FD;color:var(--blue);font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;margin-bottom:12px;}
.sol-card h3{font-size:20px;margin-bottom:8px;}
.sol-tag{color:var(--orange);font-size:14px;font-weight:600;margin-bottom:10px;}
.sol-intro{color:var(--gray);font-size:14px;flex:1;margin-bottom:14px;line-height:1.85;}
.sol-scenes{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:18px;}
.sol-scenes span{font-size:12px;color:var(--gray);background:var(--bg-soft);padding:4px 9px;border-radius:6px;}

.scene-chip{
  display:inline-block;padding:8px 18px;border:1px solid var(--line);border-radius:999px;
  font-size:14px;background:#fff;margin:0 8px 8px 0;transition:.25s;
}
.scene-chip:hover{border-color:var(--blue);color:var(--blue);}

.pain-item{display:flex;gap:16px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:.3s;}
.pain-item:hover{border-color:#FFD5B0;box-shadow:var(--shadow);}
.pain-no{flex-shrink:0;width:44px;height:44px;border-radius:11px;background:#FFF1E6;color:var(--orange);display:grid;place-items:center;font-weight:800;}
.pain-item h3{font-size:16px;margin-bottom:6px;}
.pain-item p{color:var(--gray);font-size:14px;line-height:1.8;}

.arch{display:flex;flex-direction:column;gap:8px;max-width:920px;margin:0 auto;}
.arch-layer{display:grid;grid-template-columns:118px 1fr;gap:16px;align-items:center;}
.arch-label{text-align:right;font-weight:700;color:var(--blue-dark);font-size:15px;}
.arch-boxes{display:flex;flex-wrap:wrap;gap:10px;}
.arch-box{flex:1;min-width:130px;padding:14px 16px;border-radius:10px;text-align:center;font-size:14px;transition:.3s;border:1px solid var(--line);}
.arch-box:hover{transform:translateY(-2px);box-shadow:var(--shadow);}
.arch-layer.l1 .arch-box{background:#FFF6EF;border-color:#FFDDBF;}
.arch-layer.l2 .arch-box{background:#F3F8FF;border-color:#D6E5FA;}
.arch-layer.l3 .arch-box{background:#EFF8F2;border-color:#C9E7D5;}
.arch-layer.l4 .arch-box{background:#FBF7FF;border-color:#E2D6F5;}
.arch-arrow{text-align:center;color:var(--blue-light);font-size:16px;line-height:1;}

.step-item{position:relative;text-align:center;padding:0 10px;}
.step-no{width:46px;height:46px;margin:0 auto 14px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--blue-light));color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;box-shadow:0 6px 16px rgba(18,97,196,.25);}
.step-item h3,.step-item h4{font-size:16px;margin-bottom:8px;}
.step-item p{color:var(--gray);font-size:14px;line-height:1.8;}

.faq-item{border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;background:#fff;margin-bottom:12px;transition:.3s;}
.faq-item:hover{border-color:var(--blue);}
.faq-item b{font-size:16px;}
.faq-item p{color:var(--gray);font-size:14px;margin-top:8px;line-height:1.9;}

.case-box{border:1px solid var(--line);border-left:4px solid var(--orange);border-radius:var(--radius);padding:28px 30px;background:#fff;}
.case-box strong{font-size:19px;}
.case-box p{color:var(--gray);margin-top:10px;line-height:2;}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .grid-4,.case-grid{grid-template-columns:repeat(3,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .menu{
    position:fixed;top:var(--nav-h);left:0;right:0;background:#fff;
    flex-direction:column;align-items:stretch;padding:14px 20px 22px;
    box-shadow:0 12px 28px rgba(16,42,84,.14);
    transform:translateY(-130%);transition:transform .35s ease;gap:0;
  }
  .menu.open{transform:none;}
  .menu a{padding:14px 4px;border-bottom:1px solid var(--line);}
  .menu a.active::after{display:none;}
  .burger{display:block;}
  /* 手机端靠悬浮拨号按钮与页脚承接电话展示，此处收起避免撑宽导航 */
  .nav-phone{display:none;}
  .hero{height:480px;}
  .hero h1{font-size:32px;}
  .hero .hero-h{font-size:32px;}
  .grid-3,.grid-2,.feat-grid,.contact-grid,.about-wrap{grid-template-columns:1fr;}
  .about-badge{left:16px;bottom:16px;}
  .news-item{grid-template-columns:1fr;gap:12px;}
  /* 单列后摘要必须允许换行，否则 nowrap 的 min-content 会把 grid 撑宽 */
  .news-item > *{min-width:0;}
  .news-item p{white-space:normal;}
  .news-date{display:flex;gap:10px;align-items:baseline;justify-content:flex-start;padding:10px 16px;width:fit-content;}
  .news-date b{font-size:19px;}
  .cert-grid{grid-template-columns:repeat(2,1fr);}
  .arch-layer{grid-template-columns:1fr;gap:8px;}
  .arch-label{text-align:left;}
  .modal-body{grid-template-columns:1fr;}
  .modal-img{min-height:200px;}
  .modal-img img{height:160px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:30px;}
  .stat b{font-size:34px;}
  .section{padding:60px 0;}
  .sec-head h2{font-size:26px;}
  .hero-arrow{display:none;}
  .qr-inner{grid-template-columns:1fr;text-align:center;}
  .wecom-card{flex-direction:column;text-align:center;}
}

/* ---------- 企业微信客服 / 线索对接 ---------- */
.qr-box{max-width:520px;padding:36px 30px 30px;}
.qr-inner{display:grid;grid-template-columns:.9fr 1.1fr;gap:26px;align-items:center;}
.qr-pic{background:#F6F8FB;border:1px solid var(--line);border-radius:14px;padding:14px;display:grid;place-items:center;}
.qr-pic img{width:100%;max-width:190px;display:block;}
.qr-txt b{display:block;font-size:19px;margin-bottom:10px;}
.qr-txt p{color:var(--gray);font-size:14px;line-height:1.9;margin-bottom:16px;}
.qr-tel{margin-top:16px;font-size:13px;color:var(--gray-light);}
.qr-tel b{color:var(--orange);font-size:15px;}
/* 双入口切换（客服直聊 / 客户服务群） */
.qr-tabs{display:flex;gap:8px;margin-bottom:22px;}
.qr-tab{
  flex:1;padding:10px 0;font-size:15px;font-family:inherit;cursor:pointer;
  background:#F3F5F8;border:1px solid var(--line);border-radius:10px;color:var(--gray);transition:.2s;
}
.qr-tab.active{background:var(--orange);border-color:var(--orange);color:#fff;font-weight:600;}
.qr-pane{display:none;}
.qr-pane.active{display:block;}
@media(max-width:600px){
  .qr-box{padding:30px 20px 24px;}
  .qr-inner{grid-template-columns:1fr;gap:18px;text-align:center;}
  .qr-pic img{max-width:170px;margin:0 auto;}
}
.wecom-card-grp{
  background:linear-gradient(135deg,#F1F6FF,#E8F0FE);border-color:#C7DBFB;
}
.fbtn-wecom{background:linear-gradient(140deg,#2E7CF6,#1B5FD0);color:#fff;}
.fbtn-wecom:hover{background:linear-gradient(140deg,#1B5FD0,#154BA8);}
.wecom-card{
  display:flex;gap:20px;align-items:center;margin-bottom:20px;padding:20px 22px;
  background:linear-gradient(135deg,#FFF6EE,#FFEFE2);border:1px solid #FFD9BC;border-radius:var(--radius);
}
.wc-qr{flex:0 0 96px;background:#fff;border-radius:10px;padding:8px;box-shadow:var(--shadow);}
.wc-qr img{width:96px;height:96px;display:block;}
.wc-txt b{font-size:17px;display:block;margin-bottom:6px;}
.wc-txt p{color:var(--gray);font-size:13px;line-height:1.8;margin-bottom:12px;}
.wc-tel{margin-top:12px;font-size:13px;color:var(--gray-light);}
.wc-tel b{color:var(--orange);}
.form-ok.bad{background:#FDECEC;border-color:#F5B5B7;color:#B42318;}
.icp-link{color:inherit;text-decoration:underline;text-underline-offset:3px;opacity:.9;}
.icp-link:hover{color:var(--orange);opacity:1;}

/* ---- 就地询价（产品页不跳页留资） ---- */
.quote-box{max-width:460px;padding:32px;}
.quote-box h3{font-size:21px;margin:6px 0 16px;}
.quote-prod{background:#F1F6FC;border:1px solid #DCE8F9;border-radius:9px;
  padding:12px 14px;font-size:14px;margin-bottom:18px;color:var(--gray);}
.quote-prod b{color:var(--blue);}
.quote-tip{text-align:center;font-size:12px;color:var(--gray-light);margin-top:14px;}
.quote-tip a{color:var(--orange);}
.pcard-acts{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.pcard-quote{background:var(--orange);color:#fff;border-radius:8px;padding:8px 14px;
  font-size:13px;white-space:nowrap;transition:.2s;}
.pcard-quote:hover{background:var(--orange-dark);}
.modal-acts{display:flex;gap:10px;flex-wrap:wrap;}
.modal-acts .btn{flex:1 1 auto;justify-content:center;}
@media(max-width:600px){
  .quote-box{padding:24px 20px;}
  .pcard-acts{gap:10px;}
  .pcard-quote{padding:7px 10px;font-size:12px;}
  .modal-acts{flex-direction:column;}
}

/* 案例详解（GEO：给 AI 可采信的项目背景 / 方案 / 成果）*/
.case-detail{border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;background:#fff;margin-bottom:16px;}
.case-detail h3{font-size:17px;margin-bottom:4px;}
.cd-tag{display:inline-block;font-size:12px;color:var(--orange);background:#FFF2E6;border-radius:999px;padding:3px 12px;margin-bottom:10px;}
.case-detail dl,.cd-list{margin:0;display:grid;grid-template-columns:74px 1fr;gap:8px 14px;font-size:14px;}
.case-detail dt,.cd-list dt{color:var(--gray-light);font-weight:600;}
.case-detail dd,.cd-list dd{margin:0;color:var(--gray);line-height:1.85;}
.case{cursor:pointer;}

@media (max-width:600px){
  .topbar{display:none;}
  .grid-4,.case-grid,.grid-3{grid-template-columns:repeat(2,1fr);gap:14px;}
  .hero{height:420px;}
  .hero h1{font-size:26px;}
  .hero .hero-h{font-size:26px;}
  .hero p{font-size:15px;}
  .footer-grid{grid-template-columns:1fr;}
  .floatbar{right:10px;bottom:70px;}
  .fbtn{width:46px;height:46px;}
  .case-grid{grid-template-columns:1fr;}
  .sec-head h2{font-size:23px;}
}


/* ---------- 全国服务办事处（联系页地图下方）---------- */
.svc-box{margin-top:28px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;}
.svc-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:15px 20px;border-bottom:1px solid var(--line);}
.svc-head b{font-size:15px;}
.svc-head>span{color:var(--gray);font-size:13px;}
.svc-hotline{margin-left:auto;font-size:13px;color:var(--gray);}
.svc-hotline b{color:var(--orange);font-size:14px;}
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);}
.svc-card{background:#fff;padding:20px 22px;transition:background .25s;}
.svc-card:hover{background:#FAFCFF;}
.svc-city{font-size:16px;font-weight:600;color:var(--ink);display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:10px;}
.svc-tag{padding:2px 9px;border-radius:99px;background:#EEF4FD;color:var(--blue);font-size:12px;font-weight:400;white-space:nowrap;}
.svc-row{display:flex;gap:8px;margin-top:5px;font-size:13px;color:var(--gray);line-height:1.65;}
.svc-row i{font-style:normal;flex:0 0 auto;}
.svc-row a{color:var(--gray);}
.svc-row a:hover{color:var(--blue);}
.svc-note{margin-top:9px;font-size:12px;color:var(--gray-light);}
@media(max-width:1080px){ .svc-grid{grid-template-columns:repeat(3,1fr);} }
@media(max-width:900px){ .svc-grid{grid-template-columns:repeat(2,1fr);} .svc-hotline{margin-left:0;} }
@media(max-width:600px){ .svc-grid{grid-template-columns:1fr;} .svc-card{padding:16px 18px;} .svc-city{font-size:15px;} }

/* ---------- 导航「产品中心」下拉分类 ---------- */
.nav-item{position:relative;}
.nav-item.no-sub .nav-caret{display:none;}
.nav-caret{display:inline-block;width:0;height:0;margin-left:5px;vertical-align:middle;border:4px solid transparent;border-top-color:#8A94A3;transition:transform .22s;}
.nav-item:hover .nav-caret{transform:rotate(180deg);}
.nav-item::after{content:'';position:absolute;top:100%;left:0;right:0;height:14px;} /* 鼠标移过去的桥梁，避免断在缝隙里 */
.nav-sub{position:absolute;top:calc(100% + 6px);left:50%;transform:translateX(-50%) translateY(6px);min-width:172px;padding:8px;background:#fff;border:1px solid var(--line);border-radius:11px;box-shadow:0 14px 34px rgba(15,40,80,.15);opacity:0;visibility:hidden;transition:opacity .2s,transform .2s,visibility .2s;z-index:70;}
.nav-item:hover .nav-sub{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);}
.nav-sub a{display:block;padding:9px 13px;border-radius:8px;font-size:14px;color:var(--ink);white-space:nowrap;transition:background .18s,color .18s;}
.nav-sub a:hover{background:#EEF4FD;color:var(--blue);}
.nav-sub a.sub-all{margin-top:5px;border-top:1px solid var(--line);border-radius:0 0 8px 8px;color:var(--orange);font-weight:600;}
@media(max-width:900px){
  .nav-item{display:block;}
  .nav-caret{display:none;}
  .menu .nav-sub{position:static;transform:none;opacity:1;visibility:visible;min-width:0;padding:0 0 8px 12px;background:transparent;border:0;box-shadow:none;}
  .menu .nav-sub a{padding:9px 4px;font-size:13px;color:var(--gray);border-bottom:0;}
  .menu .nav-sub a:hover{background:transparent;color:var(--blue);}
  .menu .nav-sub a.sub-all{border-top:0;color:var(--orange);}
}
@media(max-width:600px){ .nav-sub{min-width:0;} }

/* ---------- 新闻详情页：SEO/GEO 排版 ----------
   要点：正文要有分段小标题（AI 抓取与百度摘要优先取 h2/h3），
   摘要卡放正文前，问答区与 JSON-LD 完全一致。 */
.n-summary{margin:0 0 26px;padding:18px 22px;background:#F4F8FE;border-left:4px solid var(--blue);border-radius:0 10px 10px 0;}
.n-summary-t{font-size:13px;font-weight:700;color:var(--blue);letter-spacing:.05em;margin-bottom:8px;}
.n-summary p{margin:0;font-size:15px;line-height:1.95;color:#44525F;}
.n-p{margin:0 0 18px;color:#5A6675;line-height:2;font-size:15.5px;}
.n-h2{font-size:21px;line-height:1.5;color:var(--ink);margin:38px 0 16px;font-weight:700;}
.n-h3{font-size:17px;line-height:1.6;color:var(--ink);margin:26px 0 12px;font-weight:600;}
.n-ul{margin:0 0 20px;padding-left:22px;color:#5A6675;line-height:2;font-size:15.5px;}
.n-ul li{margin-bottom:7px;}
.n-faq{margin-top:40px;padding-top:26px;border-top:1px solid var(--line);}
.n-faq-item{padding:14px 0;border-bottom:1px dashed var(--line);}
.n-faq-item:last-child{border-bottom:0;}
.n-faq-item h3{font-size:16px;color:var(--ink);margin-bottom:8px;}
.n-faq-item p{margin:0;font-size:14.5px;line-height:1.95;color:#5A6675;}
.n-tags{margin-top:30px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.n-tags-t{font-size:13px;color:var(--gray-light);flex:0 0 auto;}
.n-tags a{display:inline-block;padding:5px 13px;border-radius:99px;background:#F1F5FA;color:#4A5A6B;font-size:13px;transition:background .2s,color .2s;}
.n-tags a:hover{background:var(--blue);color:#fff;}
.n-related{margin-top:36px;padding:22px 24px;border:1px solid var(--line);border-radius:12px;background:#FCFDFE;}
.n-related h2{margin:0 0 14px;}
.n-related ul{list-style:none;margin:0;padding:0;}
.n-related li{padding:11px 0;border-bottom:1px dashed var(--line);}
.n-related li:last-child{border-bottom:0;}
.n-related a{font-size:15px;color:var(--ink);display:block;margin-bottom:4px;}
.n-related a:hover{color:var(--blue);}
.n-related span{font-size:12.5px;color:var(--gray-light);}
@media(max-width:600px){
  .n-h2{font-size:19px;margin:30px 0 12px;}
  .n-p,.n-ul{font-size:15px;}
  .n-summary{padding:15px 16px;}
  .n-related{padding:16px 18px;}
}