:root{
  --primary:#1f6feb;
  --primary-dark:#174ea6;
  --primary-light:#e8f1ff;
  --accent:#ff7a45;
  --text:#1c2733;
  --text-light:#5b6b7c;
  --bg:#ffffff;
  --bg-alt:#f5f8fc;
  --border:#e2e8f0;
  --shadow:0 6px 20px rgba(28,39,51,.08);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;transition:color .25s;}
a:hover{color:var(--primary);}
ul{list-style:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
.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;font-weight:700;letter-spacing:.5px;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;align-items:center;}
.flex-between{display:flex;align-items:center;justify-content:space-between;}
.card{
  background:#fff;border-radius:var(--radius);padding:28px;
  box-shadow:var(--shadow);border:1px solid var(--border);
  transition:transform .3s,box-shadow .3s;
}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(28,39,51,.12);}
.card-icon{
  width:54px;height:54px;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;font-weight:700;margin-bottom:10px;}
.card-text{font-size:15px;color:var(--text-light);}
.card-body{display:flex;flex-direction:column;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:999px;font-size:15px;font-weight:600;
  transition:all .25s;cursor:pointer;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);}
.btn-outline{border:2px solid var(--primary);color:var(--primary);background:transparent;}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 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);
  border-bottom:1px solid transparent;transition:box-shadow .3s,border-color .3s;
}
.nav.scrolled{box-shadow:0 4px 20px rgba(28,39,51,.1);border-bottom-color:var(--border);}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 20px;height:72px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.nav-logo{
  font-size:20px;font-weight:800;color:var(--text);letter-spacing:.5px;
  display:flex;align-items:center;gap:8px;white-space:nowrap;
}
.nav-logo::before{
  content:"";width:16px;height:16px;border-radius:5px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:inline-block;
}
.nav-list{display:flex;align-items:center;gap:28px;}
.nav-link{font-size:15px;font-weight:500;color:var(--text-light);}
.nav-link:hover{color:var(--primary);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  background:var(--bg-alt);color:var(--text);font-size:20px;
  align-items:center;justify-content:center;
}
.nav-cta{display:flex;align-items:center;gap:12px;}
.hero{
  position:relative;padding:160px 0 90px;
  background:linear-gradient(160deg,#eef5ff 0%,#ffffff 55%,#fff4ec 100%);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-140px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(31,111,235,.16),transparent 70%);
}
.hero-inner{position:relative;z-index:1;max-width:900px;margin:0 auto;text-align:center;}
.hero-title{font-size:46px;font-weight:800;line-height:1.28;letter-spacing:1px;margin-bottom:22px;}
.hero-subtitle{font-size:18px;color:var(--text-light);margin-bottom:36px;}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:56px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:28px 20px;
}
.hero-stat{text-align:center;}
.hero-stat-num{font-size:28px;font-weight:800;color:var(--primary);line-height:1.3;}
.hero-stat-label{font-size:14px;color:var(--text-light);margin-top:6px;}
.timeline{position:relative;padding-left:32px;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:-41px;top:4px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--primary);
}
.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(--primary);font-weight:600;margin-bottom:6px;}
.timeline-title{font-size:17px;font-weight:700;margin-bottom:8px;}
.timeline-text{font-size:14px;color:var(--text-light);}
.news-list{display:grid;gap:22px;}
.news-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;
}
.news-item:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(28,39,51,.1);}
.news-title{font-size:18px;font-weight:700;margin-bottom:10px;}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px;font-size:13px;color:var(--text-light);}
.news-date{color:var(--text-light);}
.news-category{
  display:inline-block;padding:2px 10px;border-radius:999px;
  background:var(--primary-light);color:var(--primary);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;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-block;padding:3px 12px;border-radius:999px;font-size:13px;
  background:var(--bg-alt);color:var(--text-light);border:1px solid var(--border);
}
.faq-list{display:grid;gap:18px;max-width:860px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);}
.faq-question{font-size:17px;font-weight:700;margin-bottom:10px;color:var(--text);}
.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 16px;border:1px solid var(--border);border-radius:10px;
  font-size:15px;font-family:inherit;color:var(--text);background:#fff;transition:border-color .25s,box-shadow .25s;
}
.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{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 34px;border-radius:999px;background:var(--primary);color:#fff;
  font-size:15px;font-weight:600;transition:all .25s;
}
.form-submit:hover{background:var(--primary-dark);transform:translateY(-2px);}
.form-tip{font-size:13px;color:var(--text-light);margin-top:10px;}
.stat-item{text-align:center;padding:24px 16px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);}
.stat-number{font-size:30px;font-weight:800;color:var(--primary);}
.stat-label{font-size:14px;color:var(--text-light);margin-top:6px;}
.progress{width:100%;height:10px;background:var(--bg-alt);border-radius:999px;overflow:hidden;margin-bottom:20px;}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:999px;}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:220px;padding:20px 0;}
.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;gap:10px;}
.bar-fill{width:100%;max-width:54px;background:linear-gradient(180deg,var(--primary),var(--primary-dark));border-radius:8px 8px 0 0;transition:height .4s;}
.bar-label{font-size:13px;color:var(--text-light);}
.badge{
  display:inline-block;padding:4px 12px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--accent);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 32px rgba(28,39,51,.12);
}
.partner-logo{
  height:80px;display:flex;align-items:center;justify-content:center;
  background:var(--bg-alt);border:1px dashed var(--border);border-radius:var(--radius);
  color:var(--text-light);font-size:14px;letter-spacing:1px;
}
.step-list{display:grid;gap:24px;}
.step-item{display:flex;gap:20px;align-items:flex-start;}
.step-number{
  flex-shrink:0;width:48px;height:48px;border-radius:50%;
  background:var(--primary);color:#fff;font-size:19px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.footer{background:#101c2b;color:#b6c2d1;padding:64px 0 0;}
.footer-inner{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:36px;}
.footer-col{min-width:0;}
.footer-title{font-size:16px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-link{display:block;font-size:14px;color:#b6c2d1;margin-bottom:12px;}
.footer-link:hover{color:#fff;}
.footer-info{font-size:14px;line-height:2;color:#b6c2d1;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;font-size:13px;color:#8496a8;text-align:center;
}
@media (max-width:1200px){
  .hero-title{font-size:40px;}
  .footer-inner{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
}
@media (max-width:992px){
  .section{padding:64px 0;}
  .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:fixed;top:72px;left:0;right:0;background:#fff;
    flex-direction:column;align-items:flex-start;gap:0;
    max-height:0;overflow:hidden;transition:max-height .3s;
    border-bottom:1px solid var(--border);padding:0 20px;
  }
  .nav-list.open{max-height:420px;padding:16px 20px;}
  .nav-list .nav-link{display:block;width:100%;padding:12px 0;border-bottom:1px solid var(--border);}
  .nav-toggle{display:flex;}
  .nav-cta .btn{display:none;}
  .hero{padding:130px 0 64px;}
  .hero-title{font-size:30px;}
  .hero-subtitle{font-size:16px;}
  .section-title{font-size:26px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .bar-chart{height:180px;gap:10px;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .section{padding:52px 0;}
  .hero{padding:118px 0 52px;}
  .hero-title{font-size:24px;}
  .hero-stats{grid-template-columns:1fr;padding:22px 16px;}
  .hero-stat-num{font-size:24px;}
  .hero-actions .btn{width:100%;}
  .card{padding:22px;}
  .footer-inner{grid-template-columns:1fr;}
}