/* ============================================
   山西盛联信息科技有限公司 官网 - 全局样式
   风格：空天地一体化 · 科技蓝
   ============================================ */
:root{
  --blue:#0A4DA8;
  --blue-deep:#072E63;
  --blue-dark:#041C3D;
  --blue-light:#2E7BD6;
  --cyan:#18B6D6;
  --bg:#F4F7FC;
  --white:#ffffff;
  --gray:#5A6B82;
  --text:#16233B;
  --line:#E2EAF5;
  --radius:14px;
  --shadow:0 10px 30px rgba(7,46,99,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;color:var(--text);background:#fff;line-height:1.7}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
/* ---------- 顶部工具条 ---------- */
.topbar{background:var(--blue-dark);color:#B8CCE8;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:34px}
.topbar a{color:#B8CCE8}
.topbar a:hover{color:#fff}
.topbar .right span{margin-left:18px}
/* ---------- 导航 ---------- */
.nav{position:sticky;top:0;z-index:999;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);box-shadow:0 2px 12px rgba(4,26,61,.08)}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:12px}
.logo-img{height:46px;width:auto;object-fit:contain}
.logo-badge{width:42px;height:42px;border-radius:10px;background:linear-gradient(135deg,var(--cyan),var(--blue));display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:18px}
.logo-text .cn{font-size:19px;font-weight:700;color:var(--blue-deep);letter-spacing:1px}
.logo-text .en{font-size:11px;color:var(--gray);letter-spacing:2px;text-transform:uppercase}
.nav-menu{display:flex;gap:4px;align-items:center}
.nav-menu a{padding:8px 12px;font-size:14px;color:var(--text);border-radius:8px;transition:.2s;white-space:nowrap}
.nav-menu a:hover,.nav-menu a.active{color:var(--blue);background:rgba(10,77,168,.08)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-cta .phone{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--blue)}
.nav-cta .phone svg{width:18px;height:18px}
.btn{display:inline-block;padding:9px 20px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:.25s;border:none}
.btn-primary{background:linear-gradient(90deg,var(--blue),var(--blue-light));color:#fff;box-shadow:0 6px 16px rgba(10,77,158,.25)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(10,77,158,.35)}
.btn-outline{border:1px solid var(--blue);color:var(--blue);background:transparent}
.btn-outline:hover{background:var(--blue);color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:6px}
.nav-toggle span{width:24px;height:2px;background:var(--blue-deep);border-radius:2px}
/* ---------- Hero Banner ---------- */
.hero{position:relative;min-height:560px;display:flex;align-items:center;color:#fff;overflow:hidden;background:var(--blue-dark)}
.hero-bg{position:absolute;inset:0;background:url('../img/banner-hero.jpg') center/cover no-repeat}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,26,61,.88) 0%,rgba(4,26,61,.55) 55%,rgba(4,26,61,.25) 100%)}
.hero .container{position:relative;z-index:2;padding-top:70px;padding-bottom:70px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(24,182,214,.18);border:1px solid rgba(24,182,214,.5);color:var(--cyan);font-size:13px;padding:6px 14px;border-radius:30px;letter-spacing:1px}
.hero h1{font-size:46px;font-weight:700;line-height:1.25;margin:20px 0 16px}
.hero h1 em{font-style:normal;color:var(--cyan)}
.hero p{font-size:16px;color:#C9D9F0;max-width:640px;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-hero{background:linear-gradient(90deg,var(--cyan),var(--blue));color:#fff;padding:13px 30px;border-radius:8px;font-size:15px;font-weight:600;box-shadow:0 10px 26px rgba(24,184,214,.35);transition:.25s}
.btn-hero:hover{transform:translateY(-2px)}
.btn-ghost{border:1px solid rgba(255,255,255,.6);color:#fff;padding:13px 30px;border-radius:8px;font-size:15px;transition:.25s}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
/* 数据指标 */
.stats{display:flex;gap:14px;flex-wrap:wrap;margin-top:40px}
.stat{flex:1;min-width:150px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:16px 18px;backdrop-filter:blur(4px)}
.stat .num{font-size:28px;font-weight:700;color:#fff}
.stat .num i{font-style:normal;color:var(--cyan)}
.stat .label{font-size:12px;color:#A9C0E0;margin-top:2px}
/* ---------- Section 通用 ---------- */
.section{padding:80px 0}
.section-alt{background:var(--bg)}
.sec-head{text-align:center;max-width:760px;margin:0 auto 50px}
.sec-head .sub{color:var(--blue);font-size:14px;font-weight:600;letter-spacing:3px}
.sec-head h2{font-size:32px;font-weight:700;color:var(--blue-deep);margin:10px 0 12px}
.sec-head p{color:var(--gray);font-size:15px}
/* ---------- 产品卡片 ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:28px}
.prod-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s;border:1px solid #EDF2FA}
.prod-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(10,77,158,.16)}
.prod-card .thumb{height:220px;overflow:hidden;background:linear-gradient(180deg,#F6F9FE,#EEF3FA)}
.prod-card .thumb img{width:100%;height:100%;object-fit:contain;transition:.5s;padding:14px}
.prod-card:hover .thumb img{transform:scale(1.05)}
.prod-card .body{padding:24px}
.prod-card .tag{display:inline-block;font-size:12px;color:var(--blue);background:rgba(26,77,158,.08);padding:3px 10px;border-radius:14px;margin-bottom:10px}
.prod-card h3{font-size:19px;color:var(--blue-deep);margin-bottom:8px}
.prod-card p{font-size:14px;color:var(--gray);margin-bottom:14px}
.prod-card .specs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.prod-card .specs li{font-size:12px;background:#F2F6FC;color:var(--text);border:1px solid #E3ECF7;padding:4px 10px;border-radius:6px}
.prod-card .link{font-size:14px;color:var(--blue);font-weight:600}
.prod-card .link:hover{text-decoration:underline}
/* ---------- 解决方案 ---------- */
.sol-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:26px}
.sol-card{position:relative;border-radius:var(--radius);overflow:hidden;height:340px;color:#fff;display:flex;align-items:flex-end;box-shadow:var(--shadow)}
.sol-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.sol-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,26,61,0) 30%,rgba(4,26,61,.88) 100%)}
.sol-card .info{position:relative;z-index:2;padding:26px}
.sol-card .info h3{font-size:20px;margin-bottom:6px}
.sol-card .info p{font-size:13px;color:#C9D9F0;margin-bottom:10px}
.sol-card .info .tags{display:flex;flex-wrap:wrap;gap:6px}
.sol-card .info .tags span{font-size:11px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);padding:2px 10px;border-radius:12px}
/* ---------- 典型案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.case-card{background:#fff;border:1px solid #E9EAF5;border-radius:var(--radius);overflow:hidden;transition:.3s}
.case-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.case-card .thumb{height:180px;overflow:hidden}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.case-card:hover .thumb img{transform:scale(1.06)}
.case-card .body{padding:20px}
.case-card .body h4{font-size:16px;color:var(--blue-deep);margin-bottom:8px}
.case-card .body p{font-size:13px;color:var(--gray)}
.case-card .body .meta{margin-top:12px;font-size:12px;color:var(--blue);font-weight:600}
/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:26px}
.news-card{background:#fff;border:1px solid #EDF1F9;border-radius:var(--radius);padding:24px;transition:.3s;box-shadow:0 4px 14px rgba(10,77,158,.05)}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.news-card .date{font-size:12px;color:#8FA3C0}
.news-card h3{font-size:17px;color:var(--blue-deep);margin:10px 0 8px;line-height:1.5}
.news-card p{font-size:13px;color:var(--gray)}
/* ---------- 导航下拉 ---------- */
.nav-dropdown{position:relative}
.nav-dropdown:hover .dropdown-panel{opacity:1;visibility:visible;transform:translateY(0)}
.nav-arrow{width:10px;height:10px;display:inline-block;vertical-align:middle;margin-left:2px;transition:.2s}
.nav-dropdown:hover .nav-arrow{transform:rotate(180deg)}
.dropdown-panel{position:absolute;top:100%;left:0;min-width:520px;background:#fff;border:1px solid #E2EAF5;border-radius:14px;box-shadow:0 20px 50px rgba(4,26,61,.15);z-index:1000;opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s;padding:22px}
.dropdown-inner{display:flex;gap:24px}
.dd-col{flex:1}
.dd-title{font-size:13px;font-weight:700;color:#0A4DA8;margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid #E8EFF9;letter-spacing:1px}
.dd-item{display:flex;gap:12px;align-items:center;padding:10px;border-radius:10px;transition:.2s;margin-bottom:6px}
.dd-item:hover{background:#F4F7FC}
.dd-img{width:56px;height:56px;border-radius:10px;overflow:hidden;flex-shrink:0;border:1px solid #E2EAF5;background:#fff}
.dd-img img{width:100%;height:100%;object-fit:cover}
.dd-text b{display:block;font-size:14px;color:#16233B;margin-bottom:3px}
.dd-text span{display:block;font-size:12px;color:#5A6B82}
.dd-item-tx{padding:10px 12px;border-radius:10px;transition:.2s;margin-bottom:4px}
.dd-item-tx:hover{background:#F4F7FC}
.dd-item-tx span{font-size:14px;color:#16233B}
.dropdown-panel .dd-item-tx:last-child span{color:#0A4DA8;font-weight:600}
.nav-scrolled{box-shadow:0 4px 20px rgba(4,26,61,.12)}

/* ---------- 滚动渐入动画 ---------- */
.rellax{opacity:0;transform:translateY(30px)}
.fade-in-up{animation:fadeInUp .6s ease forwards}
@keyframes fadeInUp{to{opacity:1;transform:translateY(0)}}

/* ---------- 核心合作伙伴LOGO墙 ---------- */
.partner-section{padding:70px 0 60px;background:#fff}
.partner-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:24px;max-width:900px;margin:0 auto}
.partner-logo-cn{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:180px;height:100px;background:#fff;border:1px solid #E8EFF9;border-radius:14px;padding:18px 28px;transition:.3s;box-shadow:0 4px 12px rgba(10,77,158,.04)}
.partner-logo-cn:hover{border-color:#0A4DA8;box-shadow:0 8px 24px rgba(10,77,158,.12);transform:translateY(-4px)}
.partner-logo-img{height:44px;width:auto;object-fit:contain;max-width:150px}

/* ---------- 视频展示区 ---------- */
.video-section{background:linear-gradient(180deg,#fff,#F4F7FC)}
.video-wrap{display:grid;grid-template-columns:1fr 320px;gap:24px;max-width:1080px;margin:0 auto}
.video-main{position:relative;border-radius:16px;overflow:hidden;box-shadow:0 16px 40px rgba(4,26,61,.18);background:#041C3D;aspect-ratio:16/9}
.video-frame{width:100%;height:100%;border:none;display:block;background:#041C3D}
.video-caption-bar{position:absolute;bottom:0;left:0;right:0;padding:12px 20px;background:linear-gradient(180deg,transparent,rgba(4,26,61,.85));color:#fff;font-size:14px;font-weight:600;letter-spacing:1px;pointer-events:none}
.video-list{display:flex;flex-direction:column;gap:12px}
.video-item{display:flex;gap:12px;align-items:center;padding:10px;border-radius:12px;cursor:pointer;transition:.25s;border:2px solid transparent;background:#fff;box-shadow:0 4px 12px rgba(10,77,158,.05)}
.video-item:hover{border-color:rgba(10,77,168,.3);transform:translateX(4px)}
.video-item.active{border-color:#0A4DA8;background:linear-gradient(135deg,rgba(24,182,214,.08),rgba(10,77,168,.08))}
.vi-thumb{width:80px;height:48px;border-radius:8px;overflow:hidden;flex-shrink:0}
.vi-thumb img{width:100%;height:100%;object-fit:cover}
.vi-info b{display:block;font-size:13px;color:#16233B;margin-bottom:2px}
.vi-info span{display:block;font-size:11px;color:#8FA3C0}
@media(max-width:900px){
  .video-wrap{grid-template-columns:1fr}
  .video-list{flex-direction:row;overflow-x:auto;gap:10px}
  .video-item{flex-shrink:0;min-width:240px}
}

/* ---------- 优势卡片 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.adv-card{background:#fff;border:1px solid #E9F0FA;border-radius:16px;padding:32px 28px;box-shadow:0 6px 16px rgba(10,77,158,.05);transition:.3s;position:relative;overflow:hidden}
.adv-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#18B6D6,#0A4DA8);transform:scaleX(0);transform-origin:left;transition:.3s}
.adv-card:hover{transform:translateY(-6px);box-shadow:0 16px 36px rgba(10,77,158,.12)}
.adv-card:hover::before{transform:scaleX(1)}
.adv-ic{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,rgba(24,182,214,.14),rgba(10,77,168,.14));display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:#0A4DA8}
.adv-ic svg{width:28px;height:28px}
.adv-card h3{font-size:18px;color:var(--blue-deep);margin-bottom:10px}
.adv-card p{font-size:13px;color:var(--gray);line-height:1.8}
/* ---------- CTA ---------- */
.cta{background:linear-gradient(120deg,var(--blue-dark),var(--blue-deep) 55%,var(--blue));color:#fff;text-align:center;padding:70px 0}
.cta h2{font-size:30px;margin-bottom:12px}
.cta p{color:#BCD0EC;margin-bottom:28px}
.cta .btn-white{background:#fff;color:var(--blue-deep);padding:14px 36px;border-radius:8px;font-weight:700;font-size:15px;transition:.25s;display:inline-block}
.cta .btn-white:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.2)}
/* ---------- 页脚 ---------- */
.footer{background:var(--blue-dark);color:#A9BFDF;font-size:13px}
.footer-top{padding:50px 0 30px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer .container{display:flex;gap:40px;flex-wrap:wrap}
.foot-col{flex:1;min-width:200px}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:1px}
.foot-col ul li{margin-bottom:9px}
.foot-col ul li a:hover{color:#fff}
.foot-col p{line-height:2}
.foot-contact .phone{font-size:22px;color:#fff;font-weight:700}
.footer-bottom{padding:16px 0;text-align:center;color:#7C93B8}
.footer-bottom a{color:#9FBCE8}
.footer-beian{margin-bottom:6px;display:inline-block}
.footer-beian a{color:#9FBCE8;text-decoration:none;display:inline-flex;align-items:center;vertical-align:middle}
.footer-beian a:hover{color:#fff}
.beian-gap{margin:0 8px;color:#5A7290}
.beian-ico{width:20px;height:20px;margin-right:4px;vertical-align:middle}
.footer-copy{font-size:13px}
/* ---------- 通用页面（内部页） ---------- */
.page-hero{background:linear-gradient(120deg,var(--blue-dark),var(--blue-deep) 60%,var(--blue));color:#fff;padding:64px 0}
.page-hero h1{font-size:34px;font-weight:700}
.page-hero p{color:#C3D7F2;margin-top:10px;max-width:720px}
.crumb{font-size:13px;color:#9FBCE8;margin-top:14px}
.crumb a:hover{color:#fff}
/* ---------- 联系表单 ---------- */
.form-card{background:#fff;border-radius:var(--radius);padding:34px;box-shadow:var(--shadow);border:1px solid #EAF1FA}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-item{display:flex;flex-direction:column}
.form-item.full{grid-column:1/-1}
.form-item label{font-size:13px;font-weight:600;color:var(--blue-deep);margin-bottom:7px}
.form-item input,.form-item select,.form-item textarea{border:1px solid #DCE7F4;border-radius:8px;padding:11px 14px;font-size:14px;font-family:inherit;outline:none;transition:.2s;background:#FBFDFF}
.form-item input:focus,.form-item select:focus,.form-item textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(26,77,158,.12)}
.form-item textarea{resize:vertical;min-height:120px}
.form-msg{margin-top:16px;font-size:14px;font-weight:600;display:none}
.form-msg.ok{display:block;color:#0E7A3D}
.form-msg.err{display:block;color:#C0392B}
/* ---------- 联系我们页 ---------- */
.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:30px}
.info-card{background:#fff;border:1px solid #E9EAF5;border-radius:var(--radius);padding:24px;display:flex;gap:16px;align-items:flex-start;box-shadow:0 4px 10px rgba(10,77,158,.05)}
.info-card .ic{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,rgba(24,182,214,.15),rgba(10,77,158,.15));display:flex;align-items:center;justify-content:center;flex-shrink:0}
.info-card h4{font-size:15px;color:var(--blue-deep);margin-bottom:6px}
.info-card p{font-size:13px;color:var(--gray);line-height:1.8}
/* ---------- 通用文本 ---------- */
.page-body{padding:60px 0}
.rich-text h2{font-size:24px;color:var(--blue-deep);margin:30px 0 14px;padding-left:14px;border-left:4px solid var(--blue)}
.rich-text h3{font-size:18px;color:var(--blue-deep);margin:22px 0 10px}
.rich-text p{margin-bottom:14px;color:var(--text);font-size:15px}
.rich-text ul{padding-left:20px;margin-bottom:14px}
.rich-text ul li{list-style:disc;margin-bottom:8px;font-size:15px}
/* ---------- 响应式 ---------- */
@media(max-width:900px){
  .nav-menu{position:fixed;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:18px;box-shadow:0 10px 30px rgba(4,26,61,.12);display:none;max-height:80vh;overflow-y:auto}
  .nav-menu.open{display:flex}
  .nav-toggle{display:flex}
  .nav-cta .phone{display:none}
  .nav-dropdown:hover .dropdown-panel{display:none}
  .hero h1{font-size:30px}
  .hero{min-height:480px}
  .sec-head h2{font-size:26px}
  .contact-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .stats{flex-direction:column}
  .stat{min-width:auto}
  .partner-logo-cn{min-width:140px;height:80px;padding:12px 20px}
  .dropdown-panel{position:static;min-width:auto;box-shadow:none;border:none;padding:0}
  .dropdown-inner{flex-direction:column;gap:10px}
}
@media(max-width:1200px){
  .nav-menu .nav-dropdown .dropdown-panel{min-width:440px}
}
.text-primary{color:var(--blue)}
.mt-10{margin-top:10px}
.mt-20{margin-top:20px}
.mt-30{margin-top:30px}
.mt-40{margin-top:40px}
.mb-20{margin-bottom:20px}
.text-center{text-align:center}
/* ---------- 方案详情页 ---------- */
.sol-hero{background:linear-gradient(120deg,var(--blue-dark),var(--blue-deep) 60%,var(--blue));color:#fff;padding:70px 0;position:relative;overflow:hidden}
.sol-hero::after{content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(24,182,214,.25),transparent 70%)}
.sol-hero .container{position:relative;z-index:2}
.sol-hero .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(24,182,214,.18);border:1px solid rgba(24,182,214,.5);color:var(--cyan);font-size:13px;padding:5px 14px;border-radius:30px;letter-spacing:1px}
.sol-hero h1{font-size:38px;font-weight:700;margin:16px 0 12px}
.sol-hero p{color:#C3D7F2;max-width:760px;font-size:15px}
.sol-hero .crumb{font-size:13px;color:#9FBCE8;margin-top:16px}
.sol-hero .crumb a:hover{color:#fff}
.sol-hero .sol-hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:26px}
.sol-hero .sol-hero-meta div{display:flex;align-items:center;gap:8px;font-size:14px;color:#D8E7FA}
.sol-hero .sol-hero-meta svg{width:18px;height:18px;color:var(--cyan)}
/* 分层架构图 */
.arch-box{background:linear-gradient(160deg,var(--blue-dark),var(--blue-deep));border-radius:16px;padding:34px;color:#fff;box-shadow:var(--shadow)}
.arch-title{text-align:center;font-size:16px;font-weight:700;letter-spacing:2px;color:var(--cyan);margin-bottom:22px}
.arch-layer{display:flex;align-items:stretch;gap:14px;margin-bottom:14px;border-radius:12px;overflow:hidden;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}
.arch-layer:last-child{margin-bottom:0}
.arch-tag{flex:0 0 110px;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;letter-spacing:1px;writing-mode:horizontal-tb;padding:14px 8px}
.arch-tag.sky{background:linear-gradient(180deg,rgba(24,182,214,.35),rgba(24,182,214,.12))}
.arch-tag.mid{background:linear-gradient(180deg,rgba(10,77,168,.35),rgba(10,77,168,.12))}
.arch-tag.ground{background:linear-gradient(180deg,rgba(46,123,214,.4),rgba(46,123,214,.14))}
.arch-items{flex:1;display:flex;flex-wrap:wrap;gap:10px;padding:14px}
.arch-item{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:8px 14px;font-size:13px}
.arch-item b{color:var(--cyan);font-weight:600}
.arch-down{text-align:center;color:#7FA8D8;font-size:13px;margin:2px 0 14px;letter-spacing:4px}
/* 能力卡片 */
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px}
.feat-card{background:#fff;border:1px solid #E9F0FA;border-radius:14px;padding:26px;box-shadow:0 6px 16px rgba(10,77,158,.06);transition:.3s}
.feat-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(10,77,158,.12)}
.feat-card .fc-ic{width:50px;height:50px;border-radius:12px;background:linear-gradient(135deg,rgba(24,182,214,.16),rgba(10,77,158,.16));display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.feat-card h3{font-size:17px;color:var(--blue-deep);margin-bottom:8px}
.feat-card p{font-size:13px;color:var(--gray);line-height:1.8}
/* 场景卡片 */
.scene-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.scene-card{background:var(--bg);border:1px solid #E2EAF5;border-radius:12px;padding:20px;transition:.3s}
.scene-card:hover{border-color:var(--blue);transform:translateY(-3px)}
.scene-card h4{font-size:15px;color:var(--blue-deep);margin-bottom:6px;display:flex;align-items:center;gap:8px}
.scene-card h4::before{content:"";width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--blue));flex-shrink:0}
.scene-card p{font-size:13px;color:var(--gray)}
/* 配置/技术表 */
.cfg-table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;box-shadow:var(--shadow);border:1px solid #E9F0FA}
.cfg-table th{background:linear-gradient(120deg,var(--blue-deep),var(--blue));color:#fff;font-size:14px;font-weight:600;padding:13px 16px;text-align:left}
.cfg-table td{border-top:1px solid #EDF2FA;padding:12px 16px;font-size:13px;color:var(--text);vertical-align:top}
.cfg-table td:first-child{color:var(--blue-deep);font-weight:600;white-space:nowrap}
.cfg-table tr:hover td{background:#F7FAFF}
/* 流程步骤 */
.process-steps{display:flex;gap:0;flex-wrap:wrap;counter-reset:step}
.process-step{flex:1;min-width:180px;position:relative;padding:0 16px 0 0;text-align:center}
.process-step::before{content:"";position:absolute;top:24px;left:calc(50% + 28px);width:calc(100% - 56px);height:2px;background:linear-gradient(90deg,var(--cyan),var(--blue));opacity:.35}
.process-step:last-child::before{display:none}
.process-step .step-num{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--blue));color:#fff;font-weight:700;font-size:18px;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;box-shadow:0 8px 18px rgba(10,77,158,.25)}
.process-step h4{font-size:15px;color:var(--blue-deep);margin-bottom:6px}
.process-step p{font-size:12px;color:var(--gray);line-height:1.7;padding:0 6px}
/* 方案详情顶部回列表 */
.sol-back{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--gray);margin-bottom:18px}
.sol-back:hover{color:var(--blue)}
.sol-detail-section{padding:60px 0}
.sol-detail-section.alt{background:var(--bg)}
@media(max-width:900px){
  .sol-hero h1{font-size:28px}
  .arch-layer{flex-direction:column}
  .arch-tag{flex:none}
}

/* ---------- 内页UI增强 ---------- */
/* 案例标签筛选器 */
.case-filter{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.cf-btn{padding:8px 18px;border-radius:30px;border:1.5px solid #E2EAF5;background:#fff;font-size:14px;color:#5A6B82;cursor:pointer;transition:.25s}
.cf-btn:hover{border-color:#0A4DA8;color:#0A4DA8}
.cf-btn.active{background:linear-gradient(90deg,#0A4DA8,#2E7BD6);color:#fff;border-color:transparent;box-shadow:0 6px 16px rgba(10,77,158,.25)}

/* page-hero 装饰光晕 */
.page-hero{position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-160px;top:-160px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(24,182,214,.2),transparent 70%);pointer-events:none}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{position:relative;display:inline-block}
.page-hero h1::after{content:"";position:absolute;bottom:-8px;left:0;width:46px;height:4px;border-radius:2px;background:linear-gradient(90deg,#18B6D6,#0A4DA8)}

/* 内页卡片统一渐入 */
.page-body .prod-card,.page-body .sol-card,.page-body .case-card,.page-body .news-card{opacity:0;transform:translateY(30px)}
.page-body .prod-card.fade-in-up,.page-body .sol-card.fade-in-up,.page-body .case-card.fade-in-up,.page-body .news-card.fade-in-up{opacity:1;transform:translateY(0)}

/* 产品卡片标签增强 */
.prod-card .tag{display:inline-flex;align-items:center;gap:4px}
.prod-card .tag::before{content:"";width:6px;height:6px;border-radius:50%;background:#18B6D6}
.prod-card .link{display:inline-flex;align-items:center;gap:4px;transition:.2s}
.prod-card .link:hover{gap:8px}

/* 案例卡片增强 */
.case-card .body{position:relative}
.case-card .body::before{content:"";position:absolute;top:0;left:0;width:0;height:3px;background:linear-gradient(90deg,#18B6D6,#0A4DA8);transition:.3s}
.case-card:hover .body::before{width:100%}

/* 新闻卡片增强 */
.news-card{position:relative;overflow:hidden}
.news-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#18B6D6,#0A4DA8);transform:scaleX(0);transform-origin:left;transition:.3s}
.news-card:hover::before{transform:scaleX(1)}
.news-card .date{display:inline-block;background:linear-gradient(135deg,rgba(24,182,214,.1),rgba(10,77,168,.1));padding:4px 12px;border-radius:6px;font-weight:600}
.news-card h3{transition:.2s}
.news-card:hover h3{color:#0A4DA8}
.news-card::after{content:"→";position:absolute;right:24px;bottom:24px;font-size:18px;color:#0A4DA8;opacity:0;transform:translateX(-8px);transition:.25s}
.news-card:hover::after{opacity:1;transform:translateX(0)}

/* 内页 section-head 增强 */
.page-hero p{animation:pageHeroFade .8s ease both}
@keyframes pageHeroFade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}

/* 富文本增强 */
.rich-text h2{position:relative;padding-left:16px}
.rich-text h2::before{content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:2px;background:linear-gradient(180deg,#18B6D6,#0A4DA8)}
.rich-text ul li{transition:.2s;padding:4px 8px 4px 0;border-radius:6px}
.rich-text ul li:hover{background:rgba(10,77,168,.04);padding-left:8px}
.rich-text a:hover{text-decoration:underline}

/* 联系表单增强 */
.form-card{position:relative;overflow:hidden}
.form-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#18B6D6,#0A4DA8,#2E7BD6)}
.form-item input,.form-item select,.form-item textarea{transition:.25s}
.form-item input:hover,.form-item select:hover,.form-item textarea:hover{border-color:#B8CCE8}
.info-card{transition:.3s}
.info-card:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(10,77,158,.1)}

/* CTA增强脉冲 */
.cta .btn-white{position:relative;overflow:hidden}
.cta .btn-white::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(10,77,168,.15),transparent);transform:translateX(-100%);transition:.5s}
.cta .btn-white:hover::before{transform:translateX(100%)}

/* ---------- 关于页：发展数据 ---------- */
.about-stats{display:flex;justify-content:space-around;flex-wrap:wrap;gap:20px;text-align:center}
.about-stat{min-width:140px}
.about-num{font-size:42px;font-weight:700;color:#0A4DA8;line-height:1.1}
.about-num span{font-size:18px;color:#18B6D6;margin-left:2px}
.about-label{font-size:14px;color:#5A6B82;margin-top:8px}

/* ---------- 关于页：时间轴 ---------- */
.timeline{position:relative;max-width:800px;margin:0 auto;padding-left:28px}
.timeline::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,#18B6D6,#0A4DA8,#2E7BD6);border-radius:1px}
.tl-item{position:relative;padding:0 0 32px 32px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{position:absolute;left:-24px;top:4px;width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid #0A4DA8;box-shadow:0 0 0 4px rgba(10,77,168,.1)}
.tl-year{font-size:13px;font-weight:700;color:#0A4DA8;margin-bottom:6px}
.tl-content b{font-size:16px;color:#16233B;display:block;margin-bottom:4px}
.tl-content p{font-size:14px;color:#5A6B82;line-height:1.8}
@media(max-width:900px){
  .about-stats{gap:14px}
  .about-stat{min-width:100px}
  .about-num{font-size:32px}
}

/* ============================================
   增强响应式适配（平板 768px / 手机 480px）
   ============================================ */

/* ---- 搜索引擎收录：隐藏导航下拉 hover 在触屏端 ---- */

@media(max-width:768px){
  /* 顶部工具条 */
  .topbar .container{height:auto;flex-direction:column;gap:4px;padding:6px 20px;font-size:12px}
  .topbar .right span{margin-left:10px}

  /* 导航 */
  .nav .container{height:56px}
  .logo-img{height:36px}
  .nav-cta{gap:6px}
  .nav-cta .btn{padding:7px 14px;font-size:13px}

  /* Hero */
  .hero{min-height:420px}
  .hero .container{padding-top:50px;padding-bottom:50px}
  .hero h1{font-size:26px;line-height:1.3}
  .hero p{font-size:14px;max-width:100%}
  .hero-eyebrow{font-size:12px;padding:5px 12px}
  .btn-hero,.btn-ghost{padding:11px 22px;font-size:14px}
  .stats{gap:10px;margin-top:30px}
  .stat{min-width:140px;padding:12px 14px}
  .stat .num{font-size:22px}
  .stat .label{font-size:11px}

  /* Section 通用 */
  .section{padding:50px 0}
  .sec-head{margin-bottom:36px}
  .sec-head h2{font-size:22px}
  .sec-head p{font-size:14px}
  .sec-head .sub{font-size:13px}

  /* 产品卡片 */
  .prod-grid{grid-template-columns:1fr;gap:18px}
  .prod-card .thumb{height:180px}
  .prod-card .body{padding:18px}
  .prod-card h3{font-size:17px}

  /* 解决方案卡片 */
  .sol-grid{grid-template-columns:1fr;gap:18px}
  .sol-card{height:260px}

  /* 典型案例 */
  .case-grid{grid-template-columns:1fr;gap:16px}
  .case-card .thumb{height:160px}

  /* 新闻 */
  .news-grid{grid-template-columns:1fr;gap:16px}
  .news-card{padding:20px}

  /* 合作伙伴 */
  .partner-section{padding:40px 0 36px}
  .partner-grid{gap:12px}
  .partner-logo-cn{min-width:130px;height:72px;padding:10px 16px}
  .partner-logo-img{height:34px;max-width:110px}

  /* 视频区域 */
  .video-wrap{gap:16px}
  .video-list{gap:8px}
  .video-item{min-width:210px;padding:8px}
  .vi-thumb{width:64px;height:40px}
  .vi-info b{font-size:12px}
  .vi-info span{font-size:10px}
  .video-caption-bar{font-size:12px;padding:10px 14px}

  /* 优势卡片 */
  .adv-grid{grid-template-columns:1fr;gap:16px}
  .adv-card{padding:22px 20px}
  .adv-card h3{font-size:16px}
  .adv-card p{font-size:13px}

  /* CTA */
  .cta{padding:50px 0}
  .cta h2{font-size:22px}
  .cta p{font-size:13px;margin-bottom:22px}
  .cta .btn-white{padding:12px 28px;font-size:14px}

  /* 页脚 */
  .footer .container{flex-direction:column;gap:24px;padding:36px 20px 24px}
  .foot-col{min-width:auto}
  .foot-col h4{font-size:14px;margin-bottom:12px}
  .foot-contact .phone{font-size:20px}
  .footer-bottom{font-size:12px;padding:12px 0}

  /* 方案详情页 */
  .sol-hero{padding:50px 0}
  .sol-hero h1{font-size:24px}
  .sol-hero p{font-size:14px}
  .sol-hero .sol-hero-meta{gap:14px;margin-top:20px}
  .sol-hero .sol-hero-meta div{font-size:13px}
  .sol-detail-section{padding:40px 0}
  .arch-box{padding:20px}
  .arch-title{font-size:14px;margin-bottom:16px}
  .arch-tag{flex:none;padding:10px 6px;font-size:13px}
  .arch-items{padding:10px;gap:8px}
  .arch-item{font-size:12px;padding:6px 10px}
  .feat-grid{grid-template-columns:1fr;gap:14px}
  .feat-card{padding:20px}
  .scene-grid{grid-template-columns:1fr;gap:12px}
  .process-steps{flex-direction:column;gap:24px}
  .process-step{min-width:auto;padding:0}
  .process-step::before{display:none}
  .cfg-table{font-size:12px}
  .cfg-table th,.cfg-table td{padding:10px 10px}

  /* 页面 Hero */
  .page-hero{padding:44px 0}
  .page-hero h1{font-size:24px}
  .page-hero p{font-size:13px}

  /* 联系表单 */
  .form-card{padding:22px 18px}
  .contact-grid{gap:18px}

  /* 富文本 */
  .rich-text h2{font-size:20px}
  .rich-text h3{font-size:16px}
  .rich-text p,.rich-text ul li{font-size:14px}

  /* 关于页 */
  .about-num{font-size:30px}

  /* 导航下拉在触屏端改为点击展开（CSS 仅处理 hover 不可用情况） */
  .nav-dropdown:hover .dropdown-panel{display:none}
}

@media(max-width:480px){
  /* 顶部工具条隐藏右侧 */
  .topbar .right{display:none}
  .topbar .container{flex-direction:row;justify-content:center;padding:5px 16px}

  /* 导航 */
  .nav .container{padding:0 14px}
  .logo-img{height:32px}

  /* Hero 进一步缩小 */
  .hero{min-height:360px}
  .hero .container{padding-top:36px;padding-bottom:36px}
  .hero h1{font-size:22px;margin:14px 0 12px}
  .hero p{font-size:13px;margin-bottom:20px}
  .btn-hero,.btn-ghost{display:block;width:100%;text-align:center;padding:11px 0;font-size:14px;margin-bottom:8px}
  .hero-actions{width:100%}
  .stats{flex-direction:column;margin-top:24px}
  .stat{min-width:auto}
  .stat .num{font-size:20px}

  /* Section 标题 */
  .sec-head h2{font-size:20px}
  .section{padding:36px 0}

  /* 产品卡片缩略图 */
  .prod-card .thumb{height:160px}
  .prod-card .body{padding:16px}
  .prod-card h3{font-size:16px}
  .prod-card .specs li{font-size:11px;padding:3px 8px}

  /* 视频区 */
  .video-item{min-width:180px}
  .vi-thumb{width:56px;height:36px}

  /* 合作伙伴 */
  .partner-logo-cn{min-width:110px;height:62px;padding:8px 12px}
  .partner-logo-img{height:28px;max-width:90px}

  /* CTA */
  .cta h2{font-size:20px}
  .cta .btn-white{padding:11px 22px;font-size:13px}

  /* 页脚 */
  .footer .container{padding:28px 16px 20px}
  .foot-col h4{font-size:13px}

  /* 方案详情 */
  .sol-hero h1{font-size:22px}
  .arch-box{padding:16px}
  .arch-title{font-size:13px;letter-spacing:1px;margin-bottom:14px}
  .arch-item{font-size:11px;padding:5px 8px}

  /* 页面 Hero */
  .page-hero{padding:36px 0}
  .page-hero h1{font-size:22px}

  /* 表格横向滚动 */
  .cfg-table{display:block;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}

  /* 导航菜单占满高度并带滚动 */
  .nav-menu{max-height:75vh}

  /* 关于页数据 */
  .about-stats{gap:10px}
  .about-stat{min-width:80px}
  .about-num{font-size:26px}
  .about-num span{font-size:15px}
}