:root{
  --primary:#2b4c7e;
  --primary-dark:#1d3557;
  --primary-light:#e8eef7;
  --accent:#e07a3f;
  --text:#232a33;
  --text-light:#5e6b7d;
  --bg:#ffffff;
  --bg-alt:#f4f6fa;
  --border:#e0e5ee;
  --shadow:0 4px 16px rgba(27,42,68,.08);
  --radius:12px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  color:var(--text);background:var(--bg);line-height:1.7;font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
h1,h2,h3,h4{line-height:1.3;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);margin-bottom:14px;}
.section-subtitle{font-size:16px;color:var(--text-light);}

.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;align-items:center;gap:16px;}
.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 28px rgba(27,42,68,.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:22px;font-weight:700;margin-bottom:16px;
}
.card-title{font-size:18px;color:var(--primary-dark);margin-bottom:10px;}
.card-text{font-size:15px;color:var(--text-light);}
.card-body{font-size:15px;color:var(--text-light);}

.btn{
  display:inline-block;padding:12px 26px;border-radius:999px;font-size:15px;
  font-weight:600;cursor:pointer;border:2px solid transparent;transition:all .25s;
  text-align:center;
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-light);}
.btn-sm{padding:7px 16px;font-size:13px;}

.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);transition:box-shadow .3s;border-bottom:1px solid transparent;
}
.nav.scrolled{box-shadow:0 4px 18px rgba(27,42,68,.12);border-bottom-color:var(--border);}
.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:19px;font-weight:800;color:var(--primary-dark);letter-spacing:.5px;white-space:nowrap;}
.nav-logo span{color:var(--accent);}
.nav-list{display:flex;align-items:center;gap:26px;}
.nav-link{font-size:15px;color:var(--text);font-weight:500;padding:6px 0;position:relative;transition:color .2s;}
.nav-link:hover{color:var(--primary);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--border);border-radius:8px;
  background:#fff;cursor:pointer;font-size:20px;color:var(--primary-dark);line-height:1;
}
.nav-cta{display:flex;align-items:center;gap:10px;}

.hero{
  padding:150px 0 90px;
  background:linear-gradient(160deg,#eef3fb 0%,#f8fafd 55%,#ffffff 100%);
  border-bottom:1px solid var(--border);
}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;text-align:center;}
.hero-title{font-size:44px;color:var(--primary-dark);letter-spacing:1px;margin-bottom:20px;}
.hero-title strong{color:var(--accent);font-weight:800;}
.hero-subtitle{font-size:18px;color:var(--text-light);max-width:760px;margin:0 auto 34px;}
.hero-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:52px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:900px;margin:0 auto;}
.hero-stat{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 12px;box-shadow:var(--shadow);}
.hero-stat-num{display:block;font-size:28px;font-weight:800;color:var(--primary);line-height:1.2;}
.hero-stat-label{display:block;font-size:13px;color:var(--text-light);margin-top:6px;}

.timeline{position:relative;margin-top:10px;padding-left:26px;border-left:2px solid var(--border);}
.timeline-item{position:relative;padding:0 0 30px 20px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-dot{position:absolute;left:-33px;top:5px;width:12px;height:12px;border-radius:50%;background:var(--accent);border:2px solid #fff;box-shadow:0 0 0 2px var(--accent);}
.timeline-date{font-size:13px;color:var(--accent);font-weight:700;margin-bottom:4px;}
.timeline-title{font-size:16px;color:var(--primary-dark);margin-bottom:6px;}
.timeline-text{font-size:14px;color:var(--text-light);}

.news-list{display:flex;flex-direction:column;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:8px;}
.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:999px;font-size:12px;}
.news-summary{font-size:15px;color:var(--text-light);}
.news-body{font-size:15px;color:var(--text-light);margin-top:10px;}
.news-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{background:var(--bg-alt);border:1px solid var(--border);color:var(--text-light);font-size:12px;padding:3px 10px;border-radius:6px;}

.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:16px;}
.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(--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;color:var(--primary-dark);margin-bottom:8px;}
.form-input,.form-select,.form-textarea{
  width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:8px;
  font-size:15px;font-family:inherit;color:var(--text);background:#fff;transition:border-color .2s;
}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary);}
.form-textarea{min-height:130px;resize:vertical;}
.form-submit{
  display:inline-block;padding:13px 34px;background:var(--primary);color:#fff;border:none;
  border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;transition:background .25s;
}
.form-submit:hover{background:var(--primary-dark);}
.form-tip{font-size:13px;color:var(--text-light);margin-top:10px;}

.stat-item{text-align:center;padding:18px 10px;}
.stat-number{display:block;font-size:30px;font-weight:800;color:var(--primary);}
.stat-label{display:block;font-size:14px;color:var(--text-light);margin-top:6px;}
.progress{width:100%;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:200px;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%;max-width:48px;background:linear-gradient(180deg,var(--primary),var(--primary-light));border-radius:6px 6px 0 0;}
.bar-label{font-size:13px;color:var(--text-light);margin-top:8px;}

.badge{display:inline-block;background:var(--accent);color:#fff;font-size:12px;padding:3px 10px;border-radius:999px;font-weight:600;}
.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);box-shadow:0 10px 28px rgba(27,42,68,.14);}
.partner-logo{
  display:flex;align-items:center;justify-content:center;min-height:84px;
  background:#fff;border:1px dashed var(--border);border-radius:var(--radius);
  color:var(--text-light);font-size:14px;
}
.step-list{display:flex;flex-direction:column;gap:18px;}
.step-item{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;}
.step-number{
  flex:0 0 40px;width:40px;height:40px;border-radius:50%;background:var(--primary);
  color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:16px;
}

.footer{background:var(--primary-dark);color:#c8d4e6;padding:60px 0 0;margin-top:0;}
.footer-inner{
  max-width:1200px;margin:0 auto;padding:0 20px 44px;
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:36px;
}
.footer-col{font-size:14px;}
.footer-title{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px;}
.footer-link{display:block;color:#c8d4e6;font-size:14px;padding:5px 0;transition:color .2s;}
.footer-link:hover{color:#fff;}
.footer-info{font-size:14px;line-height:2;color:#c8d4e6;}
.footer-info a{color:#c8d4e6;}
.footer-info a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px;text-align:center;font-size:13px;color:#9fb1cb;}

@media (max-width:1200px){
  .container,.nav-inner,.hero-inner,.footer-inner{padding-left:20px;padding-right:20px;}
  .hero-title{font-size:38px;}
}
@media (max-width:992px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .footer-inner{grid-template-columns:repeat(2,1fr);}
  .section{padding:64px 0;}
  .section-title{font-size:28px;}
}
@media (max-width:768px){
  .nav-inner{height:60px;}
  .nav-list{
    display:none;position:absolute;top:60px;left:0;right:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;padding:10px 20px 18px;
    box-shadow:0 12px 24px rgba(27,42,68,.12);border-bottom:1px solid var(--border);
  }
  .nav-list.open{display:flex;}
  .nav-list .nav-link{padding:12px 0;border-bottom:1px solid var(--border);}
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
  .hero{padding:110px 0 64px;}
  .hero-title{font-size:30px;}
  .hero-subtitle{font-size:16px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .section{padding:52px 0;}
  .bar-chart{height:160px;gap:10px;}
}
@media (max-width:480px){
  body{font-size:15px;}
  .hero-title{font-size:25px;}
  .hero-stats{grid-template-columns:1fr;}
  .card,.news-item,.customer-card,.case-card,.honor-card,.review-card,.benefit-card,.region-card,.support-card{padding:20px;}
  .footer-inner{grid-template-columns:1fr;gap:26px;}
  .section-title{font-size:24px;}
}