:root{
  --primary:#c0392b;
  --primary-dark:#8e2a20;
  --primary-light:#f2d7d3;
  --accent:#f39c12;
  --text:#1f2328;
  --text-light:#5b6470;
  --bg:#ffffff;
  --bg-alt:#f7f5f3;
  --border:#e6e2df;
  --shadow:0 4px 18px rgba(31,35,40,.08);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  padding-top:68px;
}
a{text-decoration:none;color:inherit;}
ul,ol{list-style:none;}
img,svg{max-width:100%;display:block;}
.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:30px;line-height:1.35;letter-spacing:.5px;color:var(--text);margin-bottom:14px;}
.section-subtitle{font-size:16px;color:var(--text-light);}
.grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));}
.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;gap:16px;align-items:center;}
.flex-between{display:flex;gap:16px;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 12px 28px rgba(31,35,40,.13);}
.card-icon{
  width:48px;height:48px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary-dark);
  font-size:22px;font-weight:700;margin-bottom:18px;
}
.card-title{font-size:18px;margin-bottom:10px;color:var(--text);}
.card-text{font-size:14.5px;color:var(--text-light);}
.card-body{margin-top:14px;}

.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:1px solid transparent;cursor:pointer;transition:.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-dark);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-light);transform:translateY(-2px);}
.btn-sm{padding:8px 18px;font-size:13.5px;}

.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--border);
  transition:box-shadow .3s, background .3s;
  backdrop-filter:saturate(160%) blur(6px);
}
.nav.scrolled{box-shadow:0 4px 18px rgba(31,35,40,.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:21px;font-weight:800;letter-spacing:1px;color:var(--primary-dark);
  display:flex;align-items:center;gap:9px;
}
.nav-logo::before{
  content:"";width:12px;height:12px;border-radius:3px;
  background:var(--primary);display:inline-block;transform:rotate(45deg);
}
.nav-list{display:flex;align-items:center;gap:8px;}
.nav-link{
  display:inline-block;padding:9px 14px;border-radius:8px;
  font-size:15px;color:var(--text-light);transition:.2s;
}
.nav-link:hover{color:var(--primary-dark);background:var(--primary-light);}
.nav-cta{
  display:inline-flex;align-items:center;padding:10px 20px;border-radius:999px;
  background:var(--primary);color:#fff;font-size:14.5px;font-weight:600;transition:.25s;
}
.nav-cta:hover{background:var(--primary-dark);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--border);border-radius:10px;
  background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);position:relative;transition:.2s;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--text);transition:.2s;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.hero{
  position:relative;
  padding:90px 0 70px;
  background:
    radial-gradient(700px 320px at 12% 0%, rgba(192,57,43,.10), transparent 70%),
    radial-gradient(620px 300px at 88% 12%, rgba(243,156,18,.12), transparent 70%),
    var(--bg);
  border-bottom:1px solid var(--border);
}
.hero-inner{max-width:900px;margin:0 auto;padding:0 20px;text-align:center;}
.hero-title{font-size:42px;line-height:1.3;letter-spacing:1px;margin-bottom:20px;color:var(--text);}
.hero-subtitle{font-size:17px;color:var(--text-light);max-width:680px;margin:0 auto 32px;}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:52px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  border-top:1px dashed var(--border);padding-top:36px;
}
.hero-stat{text-align:center;}
.hero-stat-num{font-size:30px;font-weight:800;color:var(--primary-dark);line-height:1.2;}
.hero-stat-label{font-size:13.5px;color:var(--text-light);margin-top:6px;}

.timeline{position:relative;padding-left:30px;}
.timeline::before{
  content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--primary-light);
}
.timeline-item{position:relative;padding-bottom:28px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-dot{
  position:absolute;left:-30px;top:7px;width:18px;height:18px;border-radius:50%;
  background:#fff;border:4px solid var(--primary);
}
.timeline-content{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px 22px;box-shadow:var(--shadow);}
.timeline-date{font-size:13px;color:var(--primary-dark);font-weight:600;letter-spacing:.4px;}
.timeline-title{font-size:16.5px;margin:6px 0 6px;}
.timeline-text{font-size:14.5px;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 26px rgba(31,35,40,.12);}
.news-title{font-size:18px;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{
  display:inline-block;padding:2px 10px;border-radius:999px;
  background:var(--primary-light);color:var(--primary-dark);font-size:12.5px;font-weight:600;
}
.news-summary{font-size:14.5px;color:var(--text-light);}
.news-body{font-size:14.5px;color:var(--text-light);margin-top:12px;}
.news-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-block;padding:3px 11px;border-radius:999px;
  border:1px solid var(--border);background:var(--bg-alt);
  font-size:12.5px;color:var(--text-light);
}

.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow);}
.faq-question{font-size:16.5px;font-weight:700;color:var(--text);}
.faq-answer{font-size:14.5px;color:var(--text-light);margin-top:10px;}

.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 14px;font-size:14.5px;color:var(--text);
  border:1px solid var(--border);border-radius:10px;background:#fff;font-family:inherit;
  transition:.2s;
}
.form-input:focus,.form-select:focus,.form-textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(192,57,43,.12);
}
.form-textarea{min-height:130px;resize:vertical;}
.form-submit{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 34px;border-radius:999px;border:1px solid var(--primary);
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:.25s;
}
.form-submit:hover{background:var(--primary-dark);border-color:var(--primary-dark);}
.form-tip{font-size:13px;color:var(--text-light);margin-top:10px;}

.stat-item{text-align:center;padding:8px;}
.stat-number{font-size:32px;font-weight:800;color:var(--primary-dark);line-height:1.2;}
.stat-label{font-size:13.5px;color:var(--text-light);margin-top:6px;}
.progress{width:100%;height:10px;border-radius:999px;background:var(--primary-light);overflow:hidden;}
.progress-fill{height:100%;border-radius:999px;background:var(--primary);}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:200px;padding-top:12px;}
.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:var(--primary);}
.bar-label{font-size:12.5px;color:var(--text-light);}

.badge{
  display:inline-block;padding:3px 10px;border-radius:6px;
  background:var(--accent);color:#fff;font-size:12px;font-weight:700;
}
.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:24px;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 12px 28px rgba(31,35,40,.13);
}
.partner-logo{
  display:flex;align-items:center;justify-content:center;
  height:72px;border:1px dashed var(--border);border-radius:12px;
  background:#fff;font-size:13.5px;color:var(--text-light);letter-spacing:.5px;
}
.step-list{display:grid;gap:18px;}
.step-item{display:flex;gap:16px;align-items:flex-start;}
.step-number{
  flex:0 0 38px;width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary);color:#fff;font-weight:700;font-size:15px;
}

.footer{background:#21262c;color:#c8cdd4;padding:60px 0 0;}
.footer-inner{
  max-width:1200px;margin:0 auto;padding:0 20px 44px;
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;
}
.footer-col{display:flex;flex-direction:column;gap:10px;}
.footer-title{font-size:15.5px;color:#fff;font-weight:700;margin-bottom:8px;letter-spacing:.5px;}
.footer-link{font-size:14px;color:#a9b1ba;transition:.2s;}
.footer-link:hover{color:#fff;}
.footer-info{font-size:13.5px;color:#a9b1ba;line-height:1.9;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px;text-align:center;font-size:13px;color:#8d959e;
}

@media (max-width:1199px){
  .hero-title{font-size:38px;}
  .footer-inner{grid-template-columns:1.4fr 1fr 1fr;gap:30px;}
}
@media (max-width:991px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:24px;}
  .hero-title{font-size:34px;}
  .section{padding:64px 0;}
  .footer-inner{grid-template-columns:1fr 1fr;}
  .nav-list{
    position:absolute;top:68px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border-bottom:1px solid var(--border);
    padding:12px 20px;display:none;
  }
  .nav-list.open{display:flex;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
}
@media (max-width:767px){
  .grid,.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero{padding:64px 0 52px;}
  .hero-title{font-size:28px;}
  .hero-subtitle{font-size:15.5px;}
  .section-title{font-size:24px;}
  .section{padding:52px 0;}
  .section-header{margin-bottom:34px;}
  .card{padding:22px;}
  .footer-inner{grid-template-columns:1fr;gap:26px;padding-bottom:32px;}
}
@media (max-width:479px){
  body{padding-top:62px;}
  .nav-inner{height:62px;}
  .nav-list{top:62px;}
  .nav-logo{font-size:18px;}
  .hero-title{font-size:24px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-stat-num{font-size:24px;}
  .bar-chart{gap:10px;height:170px;}
}