:root{
  --primary:#2b4eff;
  --primary-dark:#1a35c4;
  --primary-light:#e8ecff;
  --accent:#ff6a2b;
  --text:#1c2033;
  --text-light:#5f6785;
  --bg:#ffffff;
  --bg-alt:#f5f7fc;
  --border:#e2e7f2;
  --shadow:0 6px 24px rgba(28,32,51,.08);
  --radius:14px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  color:var(--text);background:var(--bg);line-height:1.75;font-size:16px;
}
h1,h2,h3,h4{line-height:1.3;font-weight:700;color:var(--text);}
a{color:inherit;text-decoration:none;transition:color .25s;}
a:hover{color:var(--primary);}
ul,ol{list-style:none;}
img,svg{display:block;max-width:100%;}
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;letter-spacing:.5px;margin-bottom:14px;}
.section-subtitle{color:var(--text-light);font-size:16px;}
.grid{display:grid;gap:24px;}
.grid-2{display:grid;gap:24px;grid-template-columns:repeat(2,1fr);}
.grid-3{display:grid;gap:24px;grid-template-columns:repeat(3,1fr);}
.grid-4{display:grid;gap:24px;grid-template-columns:repeat(4,1fr);}
.flex{display:flex;}
.flex-between{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;}
.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(28,32,51,.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);margin-bottom:18px;font-size:22px;font-weight:700;
}
.card-title{font-size:19px;margin-bottom:10px;}
.card-text{color:var(--text-light);font-size:15px;}
.card-body{margin-top:16px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 30px;border-radius:999px;border:2px solid transparent;
  font-size:16px;font-weight:600;transition:all .25s;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(43,78,255,.28);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);}
.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:14px;}
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);transition:box-shadow .3s,background .3s;
}
.nav.scrolled{box-shadow:0 4px 18px rgba(28,32,51,.1);background:#fff;}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.nav-logo{font-size:22px;font-weight:800;color:var(--primary);letter-spacing:.5px;display:flex;align-items:center;gap:10px;}
.nav-logo span{color:var(--text);}
.nav-list{display:flex;align-items:center;gap:30px;}
.nav-link{font-size:15px;font-weight:500;color:var(--text);position:relative;padding:6px 0;}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--primary);transition:width .25s;}
.nav-link:hover::after{width:100%;}
.nav-toggle{display:none;background:none;border:none;width:42px;height:42px;flex-direction:column;justify-content:center;gap:5px;align-items:center;}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;}
.nav-cta{display:flex;align-items:center;gap:12px;}
.hero{
  padding:150px 0 90px;
  background:linear-gradient(155deg,#f0f4ff 0%,#ffffff 55%,#fff6f1 100%);
  position:relative;overflow:hidden;
}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;text-align:center;}
.hero-title{font-size:46px;line-height:1.25;margin-bottom:22px;letter-spacing:.5px;}
.hero-title strong{color:var(--primary);}
.hero-subtitle{max-width:760px;margin:0 auto 36px;font-size:18px;color:var(--text-light);}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:60px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:900px;margin:0 auto;}
.hero-stat{background:#fff;border-radius:var(--radius);padding:24px 16px;box-shadow:var(--shadow);border:1px solid var(--border);}
.hero-stat-num{font-size:30px;font-weight:800;color:var(--primary);line-height:1.2;}
.hero-stat-label{font-size:14px;color:var(--text-light);margin-top:6px;}
.timeline{position:relative;padding-left:8px;}
.timeline-item{position:relative;padding-left:34px;padding-bottom:32px;border-left:2px solid var(--border);}
.timeline-item:last-child{border-left-color:transparent;padding-bottom:0;}
.timeline-dot{position:absolute;left:-9px;top:4px;width:16px;height:16px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px var(--primary-light);}
.timeline-content{padding-left:4px;}
.timeline-date{font-size:13px;color:var(--accent);font-weight:700;letter-spacing:.5px;}
.timeline-title{font-size:17px;margin:6px 0 6px;}
.timeline-text{color:var(--text-light);font-size:15px;}
.news-list{display:flex;flex-direction:column;gap:18px;}
.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 30px rgba(28,32,51,.12);}
.news-title{font-size:18px;margin-bottom:8px;}
.news-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text-light);margin-bottom:10px;flex-wrap:wrap;}
.news-date{color:var(--text-light);}
.news-category{background:var(--primary-light);color:var(--primary);padding:2px 12px;border-radius:999px;font-weight:600;}
.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:14px;}
.tag{font-size:12px;padding:3px 12px;border-radius:999px;background:var(--bg-alt);color:var(--text-light);border:1px solid var(--border);}
.faq-list{display:flex;flex-direction:column;gap:16px;max-width:900px;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{color:var(--text-light);font-size:15px;}
.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 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:140px;resize:vertical;}
.form-submit{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 40px;border:none;border-radius:999px;background:var(--primary);color:#fff;
  font-size:16px;font-weight:600;transition:background .25s,transform .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 12px;background:#fff;border-radius:var(--radius);border:1px solid var(--border);}
.stat-number{font-size:30px;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:999px;overflow:hidden;margin:10px 0 6px;}
.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:10px 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-dark));border-radius:8px 8px 0 0;transition:height .4s;}
.bar-label{font-size:13px;color:var(--text-light);margin-top:10px;}
.badge{display:inline-block;font-size:12px;font-weight:600;padding:3px 12px;border-radius:999px;background:var(--accent);color:#fff;}
.customer-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.case-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s;}
.case-card:hover{transform:translateY(-4px);}
.honor-card{background:#fff;border:1px dashed var(--border);border-radius:var(--radius);padding:24px;text-align:center;color:var(--text-light);}
.partner-logo{background:#fff;border:1px solid var(--border);border-radius:10px;padding:18px;text-align:center;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:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.step-list{display:flex;flex-direction:column;gap:20px;}
.step-item{display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);}
.step-number{flex:0 0 40px;width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;}
.region-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);}
.support-card{background:var(--primary-light);border-radius:var(--radius);padding:26px;border:1px solid var(--border);}
.footer{background:#141826;color:#c3c8d8;padding:64px 0 0;}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;}
.footer-col{}
.footer-title{font-size:16px;color:#fff;margin-bottom:18px;font-weight:700;}
.footer-link{display:block;font-size:14px;color:#9aa2b8;margin-bottom:10px;}
.footer-link:hover{color:#fff;}
.footer-bottom{max-width:1200px;margin:44px auto 0;padding:22px 20px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#8a91a8;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;}
.footer-info{font-size:14px;color:#9aa2b8;line-height:2;}
@media (max-width:992px){
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .footer-inner{grid-template-columns:1fr 1fr;}
  .nav-list{gap:20px;}
  .hero-title{font-size:38px;}
}
@media (max-width:768px){
  .section{padding:60px 0;}
  .section-title{font-size:26px;}
  .nav-list{
    position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;
    align-items:flex-start;gap:0;padding:0 20px;max-height:0;overflow:hidden;
    transition:max-height .35s ease;border-bottom:1px solid var(--border);
  }
  .nav-list.open{max-height:420px;padding:14px 20px 22px;}
  .nav-link{display:block;width:100%;padding:12px 0;}
  .nav-toggle{display:flex;}
  .nav-cta .btn{padding:9px 18px;font-size:14px;}
  .hero{padding:120px 0 70px;}
  .hero-title{font-size:31px;}
  .hero-subtitle{font-size:16px;}
  .grid-3,.grid-4{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:14px;}
  .bar-chart{gap:10px;}
}
@media (max-width:480px){
  .hero-title{font-size:25px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .grid-2{grid-template-columns:1fr;}
  .footer-inner{grid-template-columns:1fr;}
  .card{padding:22px;}
  .hero-stat-num{font-size:24px;}
}
@media (min-width:1200px){
  .container,.hero-inner,.nav-inner,.footer-inner,.footer-bottom{max-width:1200px;}
}