:root{
  --primary:#1f6feb;
  --primary-dark:#1554b5;
  --primary-light:#e8f1fe;
  --accent:#ff6b3d;
  --text:#1c2230;
  --text-light:#5b6577;
  --bg:#ffffff;
  --bg-alt:#f5f7fb;
  --border:#e3e8f0;
  --shadow:0 6px 22px rgba(22,38,70,.08);
  --radius:14px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--text);
  background:var(--bg);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
img{max-width:100%;display:block;}
button{font-family:inherit;}
.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:780px;margin:0 auto 48px;}
.section-title{font-size:clamp(24px,3vw,34px);line-height:1.35;letter-spacing:.5px;font-weight:700;}
.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{margin-top:16px;color:var(--text-light);font-size:16px;}
.grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));}
.grid-2{display:grid;gap:28px;grid-template-columns:repeat(2,1fr);}
.grid-3{display:grid;gap:24px;grid-template-columns:repeat(3,1fr);}
.grid-4{display:grid;gap:22px;grid-template-columns:repeat(4,1fr);}
.flex{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.flex-between{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.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 34px rgba(22,38,70,.14);}
.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;font-weight:700;margin-bottom:10px;}
.card-text{color:var(--text-light);font-size:15px;}
.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:2px solid transparent;cursor:pointer;transition:all .25s;white-space:nowrap;}
.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:14px;}
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);transition:box-shadow .3s,background .3s;}
.nav.scrolled{box-shadow:0 4px 18px rgba(22,38,70,.1);background:#fff;}
.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;letter-spacing:.5px;color:var(--text);}
.nav-logo span{color:var(--primary);}
.nav-logo::before{content:"";width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--primary),var(--accent));box-shadow:0 4px 12px rgba(31,111,235,.35);}
.nav-list{display:flex;align-items:center;gap:30px;}
.nav-link{font-size:15px;color:var(--text-light);font-weight:500;position:relative;padding:6px 0;transition:color .25s;}
.nav-link:hover,.nav-link:focus{color:var(--primary);}
.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;width:42px;height:42px;border:1px solid var(--border);border-radius:10px;background:#fff;cursor:pointer;position:relative;}
.nav-toggle::before,.nav-toggle::after{content:"";position:absolute;left:11px;width:20px;height:2px;background:var(--text);transition:.3s;}
.nav-toggle::before{top:15px;}
.nav-toggle::after{top:25px;}
.nav-cta{display:inline-flex;}
.hero{position:relative;padding:150px 0 90px;background:radial-gradient(circle at 15% 10%,var(--primary-light) 0%,transparent 55%),radial-gradient(circle at 88% 80%,rgba(255,107,61,.12) 0%,transparent 50%),var(--bg);overflow:hidden;}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;text-align:center;}
.hero-title{font-size:clamp(30px,5vw,52px);line-height:1.22;font-weight:800;letter-spacing:1px;}
.hero-subtitle{max-width:720px;margin:22px auto 0;color:var(--text-light);font-size:clamp(15px,1.6vw,18px);}
.hero-actions{display:flex;justify-content:center;gap:16px;margin-top:36px;flex-wrap:wrap;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:880px;margin:60px auto 0;}
.hero-stat{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 14px;box-shadow:var(--shadow);}
.hero-stat-num{font-size:clamp(22px,2.6vw,30px);font-weight:800;color:var(--primary);}
.hero-stat-label{font-size:13px;color:var(--text-light);margin-top:6px;}
.timeline{position:relative;padding-left:28px;border-left:2px solid var(--border);}
.timeline-item{position:relative;padding:0 0 30px 24px;}
.timeline-dot{position:absolute;left:-35px;top:6px;width:14px;height:14px;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:18px 20px;box-shadow:var(--shadow);}
.timeline-date{font-size:13px;color:var(--accent);font-weight:600;}
.timeline-title{font-size:16px;font-weight:700;margin:6px 0 6px;}
.timeline-text{font-size:14px;color:var(--text-light);}
.news-list{display:grid;gap:20px;}
.news-item{border:1px solid var(--border);border-radius:var(--radius);padding:22px;background:#fff;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;}
.news-item:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(22,38,70,.12);}
.news-title{font-size:17px;font-weight:700;margin-bottom:8px;}
.news-meta{display:flex;align-items:center;gap:12px;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);border-radius:999px;padding:2px 10px;font-size:12px;}
.news-summary{font-size:14px;color:var(--text-light);}
.news-body{font-size:14px;color:var(--text-light);margin-top:10px;}
.news-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;}
.tag{display:inline-block;padding:3px 10px;border-radius:999px;background:var(--bg-alt);border:1px solid var(--border);font-size:12px;color:var(--text-light);}
.faq-list{display:grid;gap:14px;max-width:880px;margin:0 auto;}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);background:#fff;padding:18px 22px;box-shadow:var(--shadow);}
.faq-question{font-size:16px;font-weight:700;}
.faq-answer{margin-top:10px;font-size:14px;color:var(--text-light);}
.form-group{margin-bottom:20px;}
.form-label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;}
.form-input,.form-select,.form-textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;font-size:14px;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{margin-top:6px;}
.form-tip{font-size:12px;color:var(--text-light);margin-top:10px;}
.stat-item{text-align:center;padding:10px;}
.stat-number{font-size:clamp(24px,3vw,34px);font-weight:800;color:var(--primary);}
.stat-label{font-size:13px;color:var(--text-light);margin-top:4px;}
.progress{height:8px;border-radius:999px;background:var(--bg-alt);overflow:hidden;margin-top:10px;}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent));}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:200px;padding:12px 0;}
.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;gap:8px;}
.bar-fill{width:100%;max-width:46px;border-radius:8px 8px 0 0;background:linear-gradient(180deg,var(--primary),var(--primary-light));}
.bar-label{font-size:12px;color:var(--text-light);}
.badge{display:inline-block;padding:3px 10px;border-radius:999px;background:var(--accent);color:#fff;font-size:12px;font-weight:600;}
.customer-card,.case-card,.honor-card,.partner-logo,.review-card,.benefit-card,.region-card,.support-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;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 30px rgba(22,38,70,.12);}
.partner-logo{display:flex;align-items:center;justify-content:center;min-height:86px;color:var(--text-light);font-size:14px;background:var(--bg-alt);}
.step-list{display:grid;gap:20px;}
.step-item{display:flex;gap:16px;align-items:flex-start;}
.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;}
.footer{background:#101725;color:#c6cedd;padding:64px 0 0;}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;}
.footer-col{font-size:14px;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-link{display:block;color:#c6cedd;font-size:14px;margin-bottom:10px;transition:color .25s;}
.footer-link:hover{color:#fff;}
.footer-info{font-size:14px;line-height:1.9;color:#a9b3c4;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding:20px;text-align:center;font-size:13px;color:#8a94a6;}
@media (max-width:1199px){
  .hero{padding:130px 0 80px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:992px){
  .nav-list{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:flex-start;gap:0;background:#fff;border-bottom:1px solid var(--border);box-shadow:0 12px 24px rgba(22,38,70,.1);padding:8px 20px 16px;}
  .nav-list.active{display:flex;}
  .nav-link{display:block;width:100%;padding:12px 0;border-bottom:1px solid var(--bg-alt);}
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
  .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){
  .section{padding:60px 0;}
  .grid-2{grid-template-columns:1fr;}
  .grid-3{grid-template-columns:1fr;}
  .hero{padding:120px 0 64px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:14px;margin-top:44px;}
  .footer-inner{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .grid,.grid-4{grid-template-columns:1fr;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr;}
  .card{padding:22px;}
  .bar-chart{gap:10px;}
}