:root{
  --primary:#0f5ea8;
  --primary-dark:#0a4276;
  --primary-light:#e6f0fa;
  --accent:#ff7a18;
  --text:#1e2733;
  --text-light:#5b6a7d;
  --bg:#ffffff;
  --bg-alt:#f5f8fc;
  --border:#e2e8f0;
  --shadow:0 4px 18px rgba(15,94,168,.08);
  --radius:12px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
h1,h2,h3,h4{line-height:1.3;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:34px;color:var(--text);margin-bottom:14px;}
.section-subtitle{font-size:16px;color:var(--text-light);}

.grid{display:grid;gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.flex{display:flex;align-items:center;gap:16px;}
.flex-between{display:flex;align-items:center;justify-content:space-between;}

.card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow);
  transition:transform .3s, box-shadow .3s;
}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(15,94,168,.16);}
.card-icon{
  width:52px;height:52px;border-radius:12px;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:24px;font-weight:700;margin-bottom:18px;
}
.card-title{font-size:19px;margin-bottom:10px;color:var(--text);}
.card-text{font-size:15px;color:var(--text-light);}
.card-body{display:flex;flex-direction:column;}

.btn{
  display:inline-block;padding:13px 30px;border-radius:8px;
  font-size:16px;font-weight:600;cursor:pointer;
  transition:all .3s;border:2px solid transparent;text-align:center;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);}
.btn-outline{border-color:#fff;color:#fff;background:transparent;}
.btn-outline:hover{background:#fff;color:var(--primary);}
.btn-sm{padding:8px 18px;font-size:14px;}

.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  transition:box-shadow .3s, background .3s;
}
.nav.scrolled{box-shadow:0 2px 16px rgba(15,94,168,.12);}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:14px 20px;
  display:flex;align-items:center;justify-content:space-between;
}
.nav-logo{font-size:22px;font-weight:800;color:var(--primary);letter-spacing:.5px;}
.nav-logo span{color:var(--accent);}
.nav-list{display:flex;align-items:center;gap:30px;}
.nav-link{font-size:15px;color:var(--text);font-weight:500;transition:color .3s;position:relative;}
.nav-link:hover{color:var(--primary);}
.nav-toggle{display:none;background:none;border:none;font-size:26px;cursor:pointer;color:var(--primary);}
.nav-cta{display:flex;align-items:center;gap:14px;}

.hero{
  position:relative;padding:150px 0 90px;
  background:linear-gradient(135deg,#0a4276 0%,#0f5ea8 55%,#1a7fd4 100%);
  color:#fff;overflow:hidden;
}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:2;}
.hero-title{font-size:46px;line-height:1.25;margin-bottom:20px;letter-spacing:.5px;}
.hero-subtitle{font-size:18px;opacity:.92;max-width:760px;margin-bottom:34px;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;max-width:900px;}
.hero-stat{border-left:3px solid var(--accent);padding-left:16px;}
.hero-stat-num{font-size:30px;font-weight:800;color:#fff;}
.hero-stat-label{font-size:14px;opacity:.85;margin-top:4px;}

.timeline{position:relative;padding-left:30px;}
.timeline::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:var(--border);}
.timeline-item{position:relative;margin-bottom:32px;}
.timeline-dot{position:absolute;left:-30px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--primary);border:3px solid var(--primary-light);}
.timeline-content{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow);}
.timeline-date{font-size:14px;color:var(--accent);font-weight:600;margin-bottom:6px;}
.timeline-title{font-size:18px;margin-bottom:8px;}
.timeline-text{font-size:15px;color:var(--text-light);}

.news-list{display:flex;flex-direction:column;gap:24px;}
.news-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;}
.news-item:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(15,94,168,.16);}
.news-title{font-size:19px;margin-bottom:10px;}
.news-meta{display:flex;gap:14px;align-items:center;font-size:13px;color:var(--text-light);margin-bottom:12px;}
.news-date{color:var(--text-light);}
.news-category{background:var(--primary-light);color:var(--primary);padding:2px 12px;border-radius:20px;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:10px;flex-wrap:wrap;margin-top:14px;}
.tag{font-size:13px;color:var(--text-light);background:var(--bg-alt);border:1px solid var(--border);padding:3px 12px;border-radius:20px;}

.faq-list{display:flex;flex-direction:column;gap:16px;max-width:860px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 26px;box-shadow:var(--shadow);}
.faq-question{font-size:17px;font-weight:700;color:var(--text);margin-bottom:10px;}
.faq-answer{font-size:15px;color:var(--text-light);}

.form-group{margin-bottom:20px;}
.form-label{display:block;font-size:15px;font-weight:600;margin-bottom:8px;color:var(--text);}
.form-input,.form-select,.form-textarea{
  width:100%;padding:12px 14px;font-size:15px;
  border:1px solid var(--border);border-radius:8px;
  font-family:inherit;color:var(--text);background:#fff;transition:border-color .3s;
}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary);}
.form-textarea{min-height:130px;resize:vertical;}
.form-submit{
  width:100%;padding:14px;background:var(--primary);color:#fff;
  border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:background .3s;
}
.form-submit:hover{background:var(--primary-dark);}
.form-tip{font-size:13px;color:var(--text-light);margin-top:10px;}

.stat-item{text-align:center;padding:20px;}
.stat-number{font-size:36px;font-weight:800;color:var(--primary);}
.stat-label{font-size:15px;color:var(--text-light);margin-top:6px;}
.progress{background:var(--primary-light);border-radius:20px;height:12px;overflow:hidden;margin-bottom: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:20px;height:240px;padding:20px 0;}
.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;}
.bar-fill{width:100%;background:linear-gradient(180deg,var(--primary),var(--primary-light));border-radius:8px 8px 0 0;transition:height .6s;}
.bar-label{font-size:13px;color:var(--text-light);margin-top:10px;text-align:center;}

.badge{display:inline-block;background:var(--accent);color:#fff;font-size:13px;font-weight:600;padding:3px 12px;border-radius:20px;}
.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 12px 28px rgba(15,94,168,.16);}
.partner-logo{
  display:flex;align-items:center;justify-content:center;
  height:80px;border:1px dashed var(--border);border-radius:8px;
  color:var(--text-light);font-size:14px;background:#fff;
}

.step-list{display:flex;flex-direction:column;gap:26px;}
.step-item{display:flex;gap:20px;align-items:flex-start;}
.step-number{
  flex-shrink:0;width:46px;height:46px;border-radius:50%;
  background:var(--primary);color:#fff;font-weight:800;font-size:18px;
  display:flex;align-items:center;justify-content:center;
}

.footer{background:#0a1f33;color:#c7d4e2;padding:64px 0 0;}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:44px;}
.footer-col{font-size:14px;}
.footer-title{color:#fff;font-size:16px;font-weight:700;margin-bottom:18px;}
.footer-link{display:block;color:#c7d4e2;font-size:14px;margin-bottom:10px;transition:color .3s;}
.footer-link:hover{color:#fff;}
.footer-info{font-size:14px;line-height:2;color:#c7d4e2;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;text-align:center;font-size:13px;color:#8fa3ba;}

@media (max-width:992px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .footer-inner{grid-template-columns:1fr 1fr;}
  .hero-title{font-size:38px;}
  .section-title{font-size:29px;}
}
@media (max-width:768px){
  .nav-list{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:10px 20px;box-shadow:0 8px 20px rgba(15,94,168,.12);}
  .nav-list.active{display:flex;}
  .nav-list .nav-link{display:block;padding:14px 0;border-bottom:1px solid var(--border);width:100%;}
  .nav-toggle{display:block;}
  .nav-cta .btn{display:none;}
  .hero{padding:130px 0 70px;}
  .hero-title{font-size:30px;}
  .hero-subtitle{font-size:16px;}
  .section{padding:56px 0;}
  .section-header{margin-bottom:34px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:1fr 1fr;gap:20px;}
}
@media (max-width:480px){
  .hero-stats{grid-template-columns:1fr;}
  .hero-title{font-size:26px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .footer-inner{grid-template-columns:1fr;}
  .card{padding:22px;}
}