:root{
  --primary:#0b3d91;
  --primary-dark:#072a66;
  --primary-light:#2f6bd6;
  --accent:#00c2c7;
  --text:#1c2430;
  --text-light:#5b6675;
  --bg:#ffffff;
  --bg-alt:#f3f6fb;
  --border:#e2e8f2;
  --shadow:0 6px 24px rgba(11,61,145,.08);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.35;font-weight:700}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-alt{background:var(--bg-alt)}
.section-header{text-align:center;max-width:760px;margin:0 auto 48px}
.section-title{font-size:32px;color:var(--primary-dark);margin-bottom:14px}
.section-subtitle{font-size:16px;color:var(--text-light)}
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.flex{display:flex;gap:16px;align-items:center}
.flex-between{display:flex;justify-content:space-between;align-items:center}
.card{background:#fff;border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;border:1px solid var(--border)}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(11,61,145,.14)}
.card-icon{font-size:30px;color:var(--accent);margin-bottom:14px;font-weight:700}
.card-title{font-size:19px;margin-bottom:10px;color:var(--primary-dark)}
.card-text{font-size:15px;color:var(--text-light)}
.card-body{margin-top:12px}
.btn{display:inline-block;padding:13px 30px;border-radius:40px;font-size:15px;font-weight:600;cursor:pointer;border:2px solid transparent;transition:all .25s;text-align:center}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-sm{padding:8px 18px;font-size:13px}
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);transition:box-shadow .3s}
.nav.scrolled{box-shadow:0 4px 18px rgba(11,61,145,.12)}
.nav-inner{max-width:1200px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.nav-logo{font-size:20px;font-weight:800;color:var(--primary-dark);letter-spacing:.5px}
.nav-logo span{color:var(--accent)}
.nav-list{display:flex;gap:26px;align-items:center}
.nav-link{font-size:15px;color:var(--text);font-weight:500;padding:6px 0;border-bottom:2px solid transparent;transition:color .2s,border-color .2s}
.nav-link:hover{color:var(--primary);border-color:var(--accent)}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;background:none;border:none;font-size:24px;color:var(--primary-dark);cursor:pointer}
.hero{padding:150px 0 90px;background:linear-gradient(150deg,#071c47 0%,#0b3d91 55%,#0f5aa8 100%);color:#fff;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(0,194,199,.28),transparent 65%);top:-160px;right:-160px}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:2}
.hero-title{font-size:48px;margin-bottom:20px;letter-spacing:.5px}
.hero-subtitle{font-size:18px;color:#cddcf5;max-width:720px;margin-bottom:34px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px}
.hero-actions .btn-outline{color:#fff;border-color:rgba(255,255,255,.7)}
.hero-actions .btn-outline:hover{background:#fff;color:var(--primary-dark)}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;border-top:1px solid rgba(255,255,255,.2);padding-top:32px}
.hero-stat-num{font-size:30px;font-weight:800;color:var(--accent)}
.hero-stat-label{font-size:14px;color:#cddcf5}
.timeline{position:relative;padding-left:30px}
.timeline-item{position:relative;padding-bottom:30px}
.timeline-dot{position:absolute;left:-30px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--accent)}
.timeline-content{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.timeline-date{font-size:13px;color:var(--accent);font-weight:700}
.timeline-title{font-size:17px;margin:6px 0}
.timeline-text{font-size:14px;color:var(--text-light)}
.news-list{display:grid;gap:20px}
.news-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.news-title{font-size:18px;margin-bottom:8px;color:var(--primary-dark)}
.news-meta{display:flex;gap:14px;font-size:13px;color:var(--text-light);margin-bottom:10px}
.news-date{color:var(--text-light)}
.news-category{color:var(--accent);font-weight:600}
.news-summary{font-size:15px;color:var(--text-light)}
.news-body{font-size:15px;color:var(--text-light)}
.news-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.tag{font-size:12px;padding:4px 12px;border-radius:20px;background:rgba(0,194,199,.12);color:var(--primary-dark)}
.faq-list{display:grid;gap:16px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px}
.faq-question{font-size:17px;font-weight:700;color:var(--primary-dark);margin-bottom:10px}
.faq-answer{font-size:15px;color:var(--text-light)}
.form-group{margin-bottom:20px}
.form-label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.form-input,.form-select,.form-textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;font-size:15px;font-family:inherit;color:var(--text);background:#fff}
.form-textarea{min-height:120px;resize:vertical}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary-light)}
.form-submit{display:inline-block;background:var(--primary);color:#fff;border:none;padding:14px 40px;border-radius:40px;font-size:15px;font-weight:600;cursor:pointer;transition:background .25s}
.form-submit:hover{background:var(--primary-dark)}
.form-tip{font-size:13px;color:var(--text-light);margin-top:10px}
.stat-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;text-align:center}
.stat-number{font-size:32px;font-weight:800;color:var(--primary)}
.stat-label{font-size:14px;color:var(--text-light);margin-top:6px}
.progress{height:10px;background:var(--bg-alt);border-radius:20px;overflow:hidden;margin-top:10px}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:20px}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:220px;padding:20px;background:#fff;border:1px solid var(--border);border-radius:var(--radius)}
.bar-item{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%}
.bar-fill{width:100%;background:linear-gradient(180deg,var(--accent),var(--primary));border-radius:8px 8px 0 0}
.bar-label{font-size:13px;color:var(--text-light);margin-top:10px}
.badge{display:inline-block;font-size:12px;padding:4px 12px;border-radius:20px;background:var(--primary);color:#fff}
.customer-card,.case-card,.honor-card,.review-card,.benefit-card,.region-card,.support-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.customer-card:hover,.case-card:hover,.honor-card:hover,.review-card:hover,.benefit-card:hover,.region-card:hover,.support-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(11,61,145,.14)}
.partner-logo{height:80px;border:1px dashed var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:14px;background:#fff}
.step-list{display:grid;gap:20px}
.step-item{display:flex;gap:18px;align-items:flex-start}
.step-number{flex:0 0 44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.footer{background:#071c47;color:#c3d2ea;padding:60px 0 24px}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:36px}
.footer-col h4,.footer-title{color:#fff;font-size:16px;margin-bottom:16px}
.footer-link{display:block;font-size:14px;color:#c3d2ea;margin-bottom:10px}
.footer-link:hover{color:var(--accent)}
.footer-info{font-size:14px;line-height:1.9}
.footer-bottom{max-width:1200px;margin:36px auto 0;padding:20px 20px 0;border-top:1px solid rgba(255,255,255,.14);font-size:13px;text-align:center;color:#8fa4c6}
@media(max-width:1200px){
  .hero-title{font-size:42px}
}
@media(max-width:992px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1fr 1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .section{padding:56px 0}
  .hero{padding:120px 0 70px}
  .hero-title{font-size:34px}
  .hero-subtitle{font-size:16px}
  .section-title{font-size:26px}
  .nav-toggle{display:block}
  .nav-list{position:absolute;top:100%;left:0;right:0;flex-direction:column;background:#fff;padding:18px 20px;gap:14px;box-shadow:0 12px 24px rgba(11,61,145,.12);display:none}
  .nav-list.active{display:flex}
  .nav-cta .btn{padding:9px 18px;font-size:13px}
  .grid,.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .bar-chart{height:180px}
}
@media(max-width:480px){
  .hero-title{font-size:28px}
  .hero-stats{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .hero-actions{flex-direction:column;align-items:stretch}
}