:root{
  --primary:#1f4e79;
  --primary-dark:#153a5b;
  --primary-light:#e8f0f7;
  --accent:#c8952f;
  --text:#1c2430;
  --text-light:#5d6b7c;
  --bg:#ffffff;
  --bg-alt:#f5f7fa;
  --border:#dfe5ec;
  --shadow:0 2px 10px rgba(21,58,91,.08);
  --radius:10px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
img{max-width:100%;display:block;}
h1,h2,h3,h4{line-height:1.35;font-weight:700;}
.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(--primary-dark);position:relative;padding-bottom:16px;}
.section-title::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:56px;height:3px;background:var(--accent);border-radius:2px;}
.section-subtitle{margin-top:16px;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;align-items:center;gap:12px;}
.flex-between{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.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 10px 26px rgba(21,58,91,.14);}
.card-icon{width:48px;height:48px;border-radius:10px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;margin-bottom:16px;}
.card-title{font-size:18px;margin-bottom:10px;color:var(--primary-dark);}
.card-text{color:var(--text-light);font-size:15px;}
.card-body{margin-top:12px;}
.btn{display:inline-block;padding:12px 28px;border-radius:var(--radius);font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:background .3s,color .3s,border-color .3s;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent;}
.btn-outline:hover{background:var(--primary);color:#fff;}
.btn-sm{padding:8px 18px;font-size:14px;}
.nav{position:fixed;top:0;left:0;width:100%;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);z-index:1000;transition:box-shadow .3s;border-bottom:1px solid var(--border);}
.nav.scrolled{box-shadow:0 4px 16px rgba(21,58,91,.12);}
.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{font-size:20px;font-weight:800;color:var(--primary-dark);letter-spacing:1px;}
.nav-logo span{color:var(--accent);}
.nav-list{display:flex;align-items:center;gap:26px;}
.nav-link{font-size:15px;color:var(--text-light);padding:6px 0;border-bottom:2px solid transparent;transition:color .3s,border-color .3s;}
.nav-link:hover{color:var(--primary);border-bottom-color:var(--accent);}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--primary-dark);font-size:20px;cursor:pointer;}
.nav-cta{background:var(--primary);color:#fff;padding:9px 20px;border-radius:var(--radius);font-size:14px;font-weight:600;}
.nav-cta:hover{background:var(--primary-dark);}
.hero{padding:150px 0 80px;background:linear-gradient(160deg,#eef3f8 0%,#ffffff 60%);position:relative;overflow:hidden;}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;}
.hero-title{font-size:46px;color:var(--primary-dark);max-width:760px;}
.hero-title span{color:var(--accent);}
.hero-subtitle{margin-top:22px;font-size:17px;color:var(--text-light);max-width:680px;}
.hero-actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:16px;}
.hero-stats{margin-top:56px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-top:32px;border-top:1px solid var(--border);}
.hero-stat{text-align:left;}
.hero-stat-num{font-size:30px;font-weight:800;color:var(--primary);}
.hero-stat-label{font-size:14px;color:var(--text-light);margin-top:4px;}
.timeline{position:relative;padding-left:28px;border-left:2px solid var(--border);}
.timeline-item{position:relative;padding-bottom:30px;}
.timeline-dot{position:absolute;left:-37px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--accent);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 22px;box-shadow:var(--shadow);}
.timeline-date{font-size:13px;color:var(--accent);font-weight:600;}
.timeline-title{font-size:17px;margin:6px 0 8px;color:var(--primary-dark);}
.timeline-text{font-size:15px;color:var(--text-light);}
.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);transition:transform .3s;}
.news-item:hover{transform:translateY(-3px);}
.news-title{font-size:18px;color:var(--primary-dark);margin-bottom:10px;}
.news-meta{display:flex;align-items:center;gap:12px;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{font-size:15px;color:var(--text-light);}
.news-body{margin-top:12px;font-size:15px;color:var(--text-light);}
.news-tags{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;}
.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:16px;max-width:900px;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(--primary-dark);margin-bottom:10px;}
.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;color:var(--text);}
.form-input,.form-select,.form-textarea{width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:8px;font-size:15px;font-family:inherit;color:var(--text);background:#fff;}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary);}
.form-textarea{min-height:120px;resize:vertical;}
.form-submit{margin-top:6px;}
.form-tip{font-size:13px;color:var(--text-light);margin-top:10px;}
.stat-item{text-align:center;}
.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:8px;background:var(--primary-light);border-radius:20px;overflow:hidden;margin-top:10px;}
.progress-fill{height:100%;background:var(--accent);border-radius:20px;}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:200px;padding-top:10px;}
.bar-item{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;}
.bar-fill{width:100%;background:linear-gradient(180deg,var(--primary),var(--primary-dark));border-radius:6px 6px 0 0;}
.bar-label{font-size:13px;color:var(--text-light);margin-top:10px;text-align:center;}
.badge{display:inline-block;background:var(--accent);color:#fff;font-size:12px;padding:3px 10px;border-radius:20px;}
.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:24px;box-shadow:var(--shadow);transition:transform .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:90px;color:var(--text-light);font-size:14px;background:var(--bg-alt);}
.step-list{display:grid;gap:18px;}
.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;}
.footer{background:var(--primary-dark);color:#c9d6e2;padding:64px 0 0;}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:36px;}
.footer-col{font-size:14px;}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-link{display:block;color:#c9d6e2;font-size:14px;margin-bottom:10px;}
.footer-link:hover{color:var(--accent);}
.footer-info{font-size:14px;line-height:2;}
.footer-bottom{max-width:1200px;margin:48px auto 0;padding:22px 20px;border-top:1px solid rgba(255,255,255,.14);font-size:13px;color:#9fb3c8;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;}
@media(max-width:1200px){
  .hero-title{font-size:42px;}
}
@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;}
  .section{padding:64px 0;}
}
@media(max-width:768px){
  .nav-list{position:fixed;top:68px;left:0;width:100%;background:#fff;flex-direction:column;align-items:flex-start;gap:0;padding:0 20px;max-height:0;overflow:hidden;transition:max-height .35s;border-bottom:1px solid var(--border);}
  .nav-list.open{max-height:420px;padding:12px 20px 20px;}
  .nav-list li{width:100%;}
  .nav-link{display:block;width:100%;padding:12px 0;border-bottom:1px solid var(--border);}
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero{padding:120px 0 60px;}
  .hero-title{font-size:32px;}
  .hero-stats{grid-template-columns:1fr 1fr;gap:16px;}
  .section-title{font-size:26px;}
  .bar-chart{height:170px;gap:10px;}
}
@media(max-width:480px){
  .hero-title{font-size:26px;}
  .hero-subtitle{font-size:15px;}
  .hero-stats{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;text-align:center;}
  .card{padding:22px;}
  .footer-inner{grid-template-columns:1fr;}
}