:root{
  --primary:#0f4c81;
  --primary-dark:#0a3560;
  --primary-light:#e6eff8;
  --accent:#ff6a2b;
  --text:#1f2733;
  --text-light:#5f6b7a;
  --bg:#ffffff;
  --bg-alt:#f4f7fb;
  --border:#e2e8f0;
  --shadow:0 6px 20px rgba(15,76,129,.08);
  --radius:14px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;}
.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;line-height:1.3;font-weight:700;color:var(--text);}
.section-subtitle{margin-top:14px;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;flex-wrap:wrap;}
.flex-between{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.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(15,76,129,.14);}
.card-icon{
  width:52px;height:52px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--primary-light);
  color:var(--primary);
  font-size:24px;font-weight:700;
  margin-bottom:18px;
}
.card-title{font-size:19px;font-weight:700;margin-bottom:10px;color:var(--text);}
.card-text{font-size:15px;color:var(--text-light);}
.card-body{margin-top:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  padding:13px 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  border:1.5px solid transparent;
  transition:background .25s,border-color .25s,color .25s,transform .2s;
}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:#e75a1d;}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.btn-outline:hover{background:rgba(255,255,255,.14);}
.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,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s,border-color .3s;
}
.nav.scrolled{box-shadow:0 4px 18px rgba(15,76,129,.12);border-bottom-color:var(--border);}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 20px;
  height:68px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.nav-logo{
  display:flex;align-items:center;gap:10px;
  font-size:20px;font-weight:800;color:var(--primary);letter-spacing:.5px;
}
.nav-logo span{color:var(--accent);}
.nav-list{display:flex;align-items:center;gap:28px;}
.nav-link{font-size:15px;color:var(--text);font-weight:500;transition:color .2s;}
.nav-link:hover{color:var(--primary);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--border);
  background:#fff;border-radius:10px;
  font-size:20px;line-height:1;color:var(--primary);
}
.nav-cta{display:flex;align-items:center;gap:12px;}
.hero{
  position:relative;
  padding:150px 0 90px;
  background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 55%,#1d6fae 100%);
  color:#fff;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;right:-120px;top:-80px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,43,.35),transparent 65%);
}
.hero-inner{position:relative;z-index:2;max-width:860px;}
.hero-title{font-size:44px;line-height:1.25;font-weight:800;letter-spacing:.5px;}
.hero-title em{font-style:normal;color:#ffc9ad;}
.hero-subtitle{margin-top:22px;font-size:18px;color:rgba(255,255,255,.86);max-width:660px;}
.hero-actions{margin-top:34px;display:flex;gap:16px;flex-wrap:wrap;}
.hero-stats{
  margin-top:56px;
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:20px;
  padding-top:32px;
  border-top:1px solid rgba(255,255,255,.2);
}
.hero-stat-num{font-size:30px;font-weight:800;color:#fff;}
.hero-stat-label{font-size:14px;color:rgba(255,255,255,.72);margin-top:6px;}
.timeline{position:relative;margin-top:20px;padding-left:28px;border-left:2px solid var(--border);}
.timeline-item{position:relative;padding-bottom:32px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-dot{position:absolute;left:-37px;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 22px;box-shadow:var(--shadow);}
.timeline-date{font-size:13px;color:var(--accent);font-weight:600;letter-spacing:.4px;}
.timeline-title{font-size:17px;font-weight:700;margin-top:6px;}
.timeline-text{font-size:14px;color:var(--text-light);margin-top:8px;}
.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;font-weight:700;}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:10px;}
.news-date{font-size:13px;color:var(--text-light);}
.news-category{font-size:12px;padding:3px 10px;border-radius:999px;background:var(--primary-light);color:var(--primary);font-weight:600;}
.news-summary{font-size:15px;color:var(--text-light);margin-top:10px;}
.news-body{font-size:15px;color:var(--text-light);margin-top:12px;}
.news-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;}
.tag{font-size:12px;padding:3px 10px;border-radius:6px;background:var(--bg-alt);color:var(--text-light);border:1px solid var(--border);}
.faq-list{display:grid;gap:16px;max-width:860px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);}
.faq-question{font-size:17px;font-weight:700;color:var(--text);display:flex;gap:10px;}
.faq-answer{font-size:15px;color:var(--text-light);margin-top:12px;}
.form-group{margin-bottom:20px;}
.form-label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text);}
.form-input,.form-select,.form-textarea{
  width:100%;padding:12px 14px;
  border:1px solid var(--border);border-radius:10px;
  font-size:15px;color:var(--text);background:#fff;
  transition:border-color .2s,box-shadow .2s;
}
.form-input:focus,.form-select:focus,.form-textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light);
}
.form-textarea{min-height:130px;resize:vertical;}
.form-submit{width:100%;}
.form-tip{font-size:13px;color:var(--text-light);margin-top:12px;}
.stat-item{text-align:center;}
.stat-number{font-size:34px;font-weight:800;color:var(--primary);}
.stat-label{font-size:14px;color:var(--text-light);margin-top:8px;}
.progress{height:10px;border-radius:999px;background:var(--border);overflow:hidden;}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent));}
.bar-chart{display:flex;align-items:flex-end;gap:20px;height:240px;margin-top:20px;}
.bar-item{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;}
.bar-fill{width:100%;border-radius:10px 10px 0 0;background:linear-gradient(180deg,var(--primary),var(--primary-dark));}
.bar-label{font-size:13px;color:var(--text-light);margin-top:10px;}
.badge{display:inline-block;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;background:var(--primary-light);color:var(--primary);}
.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);}
.partner-logo{
  display:flex;align-items:center;justify-content:center;
  height:88px;border:1px dashed var(--border);border-radius:var(--radius);
  background:#fff;color:var(--text-light);font-size:14px;letter-spacing:.5px;
}
.step-list{display:grid;gap:20px;}
.step-item{display:flex;gap:18px;align-items:flex-start;}
.step-number{
  flex:0 0 44px;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary);color:#fff;font-weight:700;
}
.footer{background:#0d1c2c;color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:36px;padding-bottom:44px;}
.footer-col h4{margin:0;}
.footer-title{font-size:16px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-link{display:block;font-size:14px;color:rgba(255,255,255,.66);margin-bottom:10px;transition:color .2s;}
.footer-link:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;font-size:13px;color:rgba(255,255,255,.55);
  text-align:center;
}
.footer-info{font-size:14px;line-height:2;color:rgba(255,255,255,.72);}
@media (max-width:1200px){
  .hero-title{font-size:38px;}
}
@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:repeat(2,1fr);}
}
@media (max-width:768px){
  .nav-list{
    position:absolute;top:68px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--border);
    box-shadow:0 8px 20px rgba(15,76,129,.1);
    display:none;
  }
  .nav-list.active{display:flex;}
  .nav-link{padding:14px 20px;border-bottom:1px solid var(--border);}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-cta .btn{display:none;}
  .section{padding:60px 0;}
  .section-title{font-size:26px;}
  .hero{padding:120px 0 70px;}
  .hero-title{font-size:30px;}
  .hero-subtitle{font-size:16px;}
  .grid,.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .bar-chart{height:200px;gap:12px;}
}
@media (max-width:480px){
  .hero-title{font-size:26px;}
  .hero-stats{grid-template-columns:1fr;gap:14px;}
  .footer-inner{grid-template-columns:1fr;}
  .card{padding:22px;}
  .btn{padding:11px 22px;font-size:14px;}
}