:root{
  --primary:#1f6feb;
  --primary-dark:#1548a3;
  --primary-light:#e8f0fe;
  --accent:#f2683c;
  --text:#1c2330;
  --text-light:#5b6779;
  --bg:#ffffff;
  --bg-alt:#f5f7fb;
  --border:#e2e7f0;
  --shadow:0 6px 24px rgba(21,42,84,.08);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","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;}
ul,ol{list-style:none;}
h1,h2,h3,h4{line-height:1.3;font-weight:700;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
img,svg{display:block;max-width:100%;}
.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(--text);margin-bottom:14px;letter-spacing:.5px;
}
.section-title::after{
  content:"";display:block;width:56px;height:4px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  margin:16px auto 0;
}
.section-subtitle{color:var(--text-light);font-size:16px;}
.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;align-items:center;justify-content:space-between;}
.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(21,42,84,.13);}
.card-icon{
  width:52px;height:52px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);font-size:22px;font-weight:700;margin-bottom:18px;
}
.card-title{font-size:18px;margin-bottom:10px;color:var(--text);}
.card-text{color:var(--text-light);font-size:15px;}
.card-body{margin-top:12px;color:var(--text-light);font-size:14px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 30px;border-radius:40px;font-size:15px;font-weight:600;
  transition:all .25s ease;border:2px solid transparent;
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-light);transform:translateY(-2px);}
.btn-sm{padding:8px 18px;font-size:13px;}
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);transition:box-shadow .3s,background .3s;border-bottom:1px solid transparent;
}
.nav.scrolled{box-shadow:0 4px 20px rgba(21,42,84,.1);background:#fff;border-bottom-color:var(--border);}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 20px;height:70px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--primary);}
.nav-logo::before{
  content:"";width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:inline-block;
}
.nav-list{display:flex;align-items:center;gap:6px;}
.nav-link{
  padding:8px 14px;border-radius:8px;font-size:15px;color:var(--text);font-weight:500;
  transition:color .2s,background .2s;
}
.nav-link:hover{color:var(--primary);background:var(--primary-light);}
.nav-cta{display:inline-flex;}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border-radius:8px;background:var(--bg-alt);
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);margin:0 auto;border-radius:2px;}
.hero{
  padding:150px 0 90px;position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 88% 12%,rgba(242,104,60,.12),transparent 42%),
    radial-gradient(circle at 8% 82%,rgba(31,111,235,.13),transparent 45%),
    linear-gradient(180deg,#f8fbff 0%,#ffffff 100%);
}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;text-align:center;}
.hero-title{font-size:46px;letter-spacing:1px;margin-bottom:20px;color:var(--text);}
.hero-title strong{color:var(--primary);}
.hero-subtitle{font-size:18px;color:var(--text-light);max-width:760px;margin:0 auto 34px;}
.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;
  max-width:900px;margin:0 auto;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);padding:30px 20px;box-shadow:var(--shadow);
}
.hero-stat{text-align:center;}
.hero-stat-num{display:block;font-size:28px;font-weight:800;color:var(--primary);margin-bottom:4px;}
.hero-stat-label{font-size:14px;color:var(--text-light);}
.timeline{position:relative;padding-left:28px;border-left:2px solid var(--border);}
.timeline-item{position:relative;padding:0 0 30px 22px;}
.timeline-dot{
  position:absolute;left:-9px;top:6px;width:16px;height:16px;border-radius:50%;
  background:var(--primary);border:3px solid #fff;box-shadow:0 0 0 2px var(--primary-light);
}
.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:600;margin-bottom:6px;}
.timeline-title{font-size:17px;margin-bottom:8px;}
.timeline-text{color:var(--text-light);font-size:14px;}
.news-list{display:grid;gap:20px;}
.news-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:box-shadow .3s,transform .3s;}
.news-item:hover{box-shadow:var(--shadow);transform:translateY(-3px);}
.news-title{font-size:18px;margin-bottom:8px;}
.news-meta{display:flex;gap:14px;align-items:center;font-size:13px;color:var(--text-light);margin-bottom:10px;}
.news-date{color:var(--text-light);}
.news-category{background:var(--primary-light);color:var(--primary);padding:2px 10px;border-radius:20px;font-size:12px;}
.news-summary{color:var(--text-light);font-size:15px;}
.news-body{color:var(--text-light);font-size:15px;margin-top:10px;}
.news-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.tag{background:var(--bg-alt);border:1px solid var(--border);color:var(--text-light);font-size:12px;padding:3px 10px;border-radius:20px;}
.faq-list{display:grid;gap:14px;max-width:880px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;}
.faq-question{font-size:16px;font-weight:700;margin-bottom:8px;color:var(--text);}
.faq-answer{color:var(--text-light);font-size:15px;}
.form-group{margin-bottom:18px;}
.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;background:#fff;color:var(--text);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{resize:vertical;min-height:120px;}
.form-submit{
  background:var(--primary);color:#fff;padding:13px 32px;border-radius:40px;
  font-size:15px;font-weight:600;transition:background .25s;
}
.form-submit:hover{background:var(--primary-dark);}
.form-tip{font-size:13px;color:var(--text-light);margin-top:10px;}
.stat-item{text-align:center;}
.stat-number{display:block;font-size:30px;font-weight:800;color:var(--primary);}
.stat-label{font-size:14px;color:var(--text-light);}
.progress{height:10px;background:var(--bg-alt);border-radius:20px;overflow:hidden;margin:10px 0;}
.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:200px;padding-top:20px;}
.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;}
.bar-fill{width:100%;max-width:46px;background:linear-gradient(180deg,var(--primary),var(--primary-light));border-radius:8px 8px 0 0;}
.bar-label{font-size:13px;color:var(--text-light);margin-top:10px;}
.badge{display:inline-block;background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:600;padding:4px 12px;border-radius:20px;}
.customer-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center;}
.case-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.honor-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;text-align:center;}
.partner-logo{
  display:flex;align-items:center;justify-content:center;height:80px;
  background:var(--bg-alt);border:1px dashed var(--border);border-radius:var(--radius);
  color:var(--text-light);font-size:14px;
}
.review-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.benefit-card{background:var(--primary-light);border-radius:var(--radius);padding:26px;}
.step-list{display:grid;gap:18px;counter-reset:step;}
.step-item{position:relative;padding-left:64px;min-height:48px;}
.step-number{
  position:absolute;left:0;top:0;width:44px;height:44px;border-radius:50%;
  background:var(--primary);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.region-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;text-align:center;}
.support-card{background:#fff;border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:var(--radius);padding:22px;}
.footer{background:#121a28;color:#c4ccda;padding:60px 0 24px;}
.footer-inner{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;max-width:1200px;margin:0 auto;padding:0 20px;}
.footer-col{}
.footer-title{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-link{display:block;color:#9aa6ba;font-size:14px;padding:5px 0;transition:color .2s;}
.footer-link:hover{color:#fff;}
.footer-bottom{
  max-width:1200px;margin:40px auto 0;padding:22px 20px 0;border-top:1px solid #232e42;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px;color:#7d8aa0;
}
.footer-info{font-size:14px;color:#9aa6ba;line-height:2;}
@media (max-width:1200px){
  .hero-title{font-size:40px;}
}
@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);}
  .hero-title{font-size:34px;}
  .section-title{font-size:28px;}
}
@media (max-width:768px){
  .nav-list{
    display:none;position:absolute;top:70px;left:0;right:0;background:#fff;
    flex-direction:column;align-items:stretch;padding:12px 20px;
    border-bottom:1px solid var(--border);box-shadow:var(--shadow);gap:2px;
  }
  .nav-list.open{display:flex;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .grid,.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero{padding:120px 0 64px;}
  .hero-title{font-size:29px;}
  .hero-subtitle{font-size:16px;}
  .section{padding:56px 0;}
  .section-title{font-size:24px;}
}
@media (max-width:480px){
  .hero-stats{grid-template-columns:1fr;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .footer-inner{grid-template-columns:1fr;}
  .hero-stat-num{font-size:24px;}
}