:root{
  --primary:#1f3a5f;
  --primary-dark:#152b47;
  --primary-light:#e8eef6;
  --accent:#c9772f;
  --text:#1c2230;
  --text-light:#5c6675;
  --bg:#ffffff;
  --bg-alt:#f5f7fa;
  --border:#e2e7ee;
  --shadow:0 6px 24px rgba(21,43,71,.08);
  --radius:14px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img,svg{max-width:100%;display:block;}
button{font-family:inherit;font-size: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:clamp(22px,3vw,32px);
  font-weight:700;
  letter-spacing:.02em;
  margin-bottom:14px;
  color:var(--primary-dark);
}
.section-subtitle{font-size:15px;color:var(--text-light);}

.grid{display:grid;gap:24px;grid-template-columns: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-wrap:wrap;}
.flex-between{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;}

.card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow);
  transition:transform .3s,box-shadow .3s;
}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(21,43,71,.14);}
.card-icon{
  width:46px;height:46px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);
  font-size:20px;font-weight:700;margin-bottom:16px;
}
.card-title{font-size:18px;font-weight:700;margin-bottom:10px;color:var(--primary-dark);}
.card-text{font-size:14.5px;color:var(--text-light);}
.card-body{margin-top:var(--radius);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;transition:all .25s;
}
.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-light);}
.btn-sm{padding:9px 18px;font-size:13.5px;}

.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s,border-color .3s;
}
.nav.scrolled{box-shadow:0 4px 20px rgba(21,43,71,.10);border-bottom-color:var(--border);}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:14px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.nav-logo{font-size:19px;font-weight:800;color:var(--primary-dark);letter-spacing:.03em;}
.nav-logo span{color:var(--accent);}
.nav-list{display:flex;align-items:center;gap:28px;}
.nav-link{font-size:15px;font-weight:500;color:var(--text-light);transition:color .2s;}
.nav-link:hover{color:var(--primary);}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--border);
  border-radius:10px;padding:8px 11px;color:var(--primary-dark);font-size:18px;line-height:1;
}
.nav-cta{display:flex;align-items:center;gap:12px;}

.hero{
  padding:150px 0 80px;
  background:linear-gradient(160deg,#f2f6fb 0%,#ffffff 60%);
}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;}
.hero-title{
  font-size:clamp(28px,4.6vw,48px);
  font-weight:800;
  line-height:1.3;
  letter-spacing:.01em;
  color:var(--primary-dark);
  max-width:860px;
}
.hero-title em{font-style:normal;color:var(--accent);}
.hero-subtitle{
  margin-top:20px;max-width:720px;
  font-size:17px;color:var(--text-light);
}
.hero-actions{margin-top:34px;display:flex;gap:16px;flex-wrap:wrap;}
.hero-stats{
  margin-top:56px;display:grid;gap:24px;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--border);padding-top:36px;
}
.hero-stat{text-align:left;}
.hero-stat-num{font-size:28px;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:28px;}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--border);}
.timeline-item{position:relative;padding-bottom:28px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-dot{position:absolute;left:-28px;top:6px;width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--primary);}
.timeline-content{}
.timeline-date{font-size:13px;color:var(--accent);font-weight:600;}
.timeline-title{font-size:17px;font-weight:700;color:var(--primary-dark);margin:4px 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:26px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;
}
.news-item:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(21,43,71,.14);}
.news-title{font-size:18px;font-weight:700;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:12px;}
.news-date{}
.news-category{
  background:var(--primary-light);color:var(--primary);
  padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;
}
.news-summary{font-size:14.5px;color:var(--text-light);}
.news-body{margin-top:14px;font-size:14.5px;color:var(--text);}
.news-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px;}
.tag{
  font-size:12.5px;color:var(--text-light);
  background:var(--bg-alt);border:1px solid var(--border);
  padding:3px 10px;border-radius:999px;
}

.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 26px;box-shadow:var(--shadow);}
.faq-question{font-size:16.5px;font-weight:700;color:var(--primary-dark);}
.faq-answer{margin-top:10px;font-size:14.5px;color:var(--text-light);}

.form-group{margin-bottom:18px;}
.form-label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--primary-dark);}
.form-input,.form-select,.form-textarea{
  width:100%;padding:12px 14px;border:1px solid var(--border);
  border-radius:10px;font-size:14.5px;color:var(--text);background:#fff;
  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{min-height:130px;resize:vertical;}
.form-submit{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 30px;border:none;border-radius:999px;
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;transition:background .25s;
}
.form-submit:hover{background:var(--primary-dark);}
.form-tip{font-size:12.5px;color:var(--text-light);margin-top:10px;}

.stat-item{text-align:center;}
.stat-number{font-size:30px;font-weight:800;color:var(--primary);line-height:1.2;}
.stat-label{font-size:14px;color:var(--text-light);margin-top:6px;}
.progress{height:8px;background:var(--primary-light);border-radius:999px;overflow:hidden;}
.progress-fill{height:100%;background:var(--primary);border-radius:999px;}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:200px;}
.bar-item{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;gap:10px;}
.bar-fill{width:100%;background:linear-gradient(180deg,var(--primary),var(--primary-dark));border-radius:8px 8px 0 0;}
.bar-label{font-size:12.5px;color:var(--text-light);}

.badge{
  display:inline-block;padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;background:var(--accent);color:#fff;
}
.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:26px;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);}
.partner-logo{
  display:flex;align-items:center;justify-content:center;
  height:76px;border:1px dashed var(--border);border-radius:var(--radius);
  background:var(--bg-alt);color:var(--text-light);font-size:13px;
}
.step-list{display:grid;gap:22px;}
.step-item{display:flex;gap:18px;align-items:flex-start;}
.step-number{
  flex:none;width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary);color:#fff;font-weight:700;font-size:16px;
}

.footer{background:var(--primary-dark);color:#c8d3e2;padding:64px 0 0;}
.footer-inner{
  max-width:1200px;margin:0 auto;padding:0 20px 44px;
  display:grid;gap:34px;grid-template-columns:1.4fr 1fr 1fr 1.2fr;
}
.footer-col{}
.footer-title{font-size:15.5px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-link{display:block;font-size:14px;color:#c8d3e2;margin-bottom:10px;transition:color .2s;}
.footer-link:hover{color:#fff;}
.footer-info{font-size:14px;color:#c8d3e2;line-height:1.9;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 20px;text-align:center;font-size:13px;color:#9fadc1;
  max-width:1200px;margin:0 auto;
}

@media (max-width:1200px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:992px){
  .section{padding:64px 0;}
  .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){
  .nav-list{
    display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:flex-start;gap:4px;
    background:#fff;padding:16px 20px 22px;
    border-bottom:1px solid var(--border);box-shadow:0 12px 24px rgba(21,43,71,.1);
  }
  .nav-list.open{display:flex;}
  .nav-link{display:block;width:100%;padding:10px 0;}
  .nav-toggle{display:block;}
  .nav-cta .btn{display:none;}
  .hero{padding:126px 0 60px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .footer-inner{grid-template-columns:1fr;padding-bottom:32px;}
  .bar-chart{height:170px;gap:12px;}
}
@media (max-width:480px){
  .section{padding:52px 0;}
  .card{padding:22px;}
  .hero-stats{grid-template-columns:1fr;gap:18px;}
  .hero-actions .btn{width:100%;}
}