:root{
  --primary:#e2472f;
  --primary-dark:#b8331f;
  --primary-light:#ff7a5c;
  --accent:#1f9d8f;
  --text:#22252b;
  --text-light:#6b7178;
  --bg:#ffffff;
  --bg-alt:#f6f7f9;
  --border:#e4e7ec;
  --shadow:0 6px 24px rgba(20,25,35,.08);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}

.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 52px;}
.section-title{font-size:34px;font-weight:700;line-height:1.3;letter-spacing:.5px;}
.section-subtitle{margin-top:14px;color:var(--text-light);font-size:16px;}

.grid{display:grid;gap:26px;}
.grid-2{display:grid;gap:26px;grid-template-columns:repeat(2,1fr);}
.grid-3{display:grid;gap:26px;grid-template-columns:repeat(3,1fr);}
.grid-4{display:grid;gap:22px;grid-template-columns:repeat(4,1fr);}
.flex{display:flex;align-items:center;}
.flex-between{display:flex;align-items:center;justify-content:space-between;}

.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(20,25,35,.12);}
.card-icon{
  width:52px;height:52px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary-light),var(--primary));
  color:#fff;font-size:22px;font-weight:700;margin-bottom:18px;
}
.card-title{font-size:19px;font-weight:700;margin-bottom:10px;}
.card-text{color:var(--text-light);font-size:15px;line-height:1.75;}
.card-body{margin-top:12px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 28px;border-radius:999px;font-size:15px;font-weight:600;
  transition:all .25s;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(226,71,47,.28);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);}
.btn-outline{border:1.5px solid var(--border);color:var(--text);background:#fff;}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);}
.btn-sm{padding:9px 20px;font-size:14px;}

.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;transition:all .3s;
}
.nav.scrolled{box-shadow:0 4px 20px rgba(20,25,35,.09);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;
}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;letter-spacing:.5px;}
.nav-logo span{color:var(--primary);}
.nav-logo .logo-mark{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;font-weight:800;
}
.nav-list{display:flex;align-items:center;gap:30px;}
.nav-link{font-size:15px;color:var(--text-light);font-weight:500;transition:color .2s;position:relative;}
.nav-link:hover{color:var(--primary);}
.nav-cta{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--border);align-items:center;justify-content:center;
  font-size:20px;color:var(--text);
}

.hero{
  position:relative;padding:150px 0 90px;overflow:hidden;
  background:linear-gradient(160deg,#fff5f2 0%,#ffffff 45%,#f2fbfa 100%);
}
.hero::before{
  content:"";position:absolute;top:-160px;right:-140px;width:520px;height:520px;
  border-radius:50%;background:radial-gradient(circle,rgba(226,71,47,.14),transparent 68%);
}
.hero::after{
  content:"";position:absolute;bottom:-180px;left:-120px;width:460px;height:460px;
  border-radius:50%;background:radial-gradient(circle,rgba(31,157,143,.13),transparent 68%);
}
.hero-inner{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:0 20px;text-align:center;}
.hero-title{font-size:50px;font-weight:800;line-height:1.22;letter-spacing:1px;}
.hero-title em{font-style:normal;color:var(--primary);}
.hero-subtitle{margin:22px auto 0;max-width:720px;font-size:18px;color:var(--text-light);line-height:1.8;}
.hero-actions{margin-top:38px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}
.hero-stats{
  margin-top:64px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  max-width:900px;margin-left:auto;margin-right:auto;
}
.hero-stat{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:24px 14px;box-shadow:var(--shadow);
}
.hero-stat-num{font-size:28px;font-weight:800;color:var(--primary);line-height:1.2;}
.hero-stat-label{margin-top:6px;font-size:14px;color:var(--text-light);}

.timeline{position:relative;padding-left:34px;}
.timeline::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:var(--border);}
.timeline-item{position:relative;padding-bottom:34px;}
.timeline-dot{
  position:absolute;left:-34px;top:6px;width:20px;height:20px;border-radius:50%;
  background:#fff;border:3px solid var(--primary);
}
.timeline-content{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);}
.timeline-date{font-size:13px;color:var(--primary);font-weight:700;letter-spacing:.5px;}
.timeline-title{font-size:17px;font-weight:700;margin:8px 0;}
.timeline-text{color:var(--text-light);font-size:15px;}

.news-list{display:flex;flex-direction:column;gap:20px;}
.news-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:transform .3s;}
.news-item:hover{transform:translateY(-3px);}
.news-title{font-size:19px;font-weight:700;margin-bottom:10px;}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap;}
.news-date{font-size:13px;color:var(--text-light);}
.news-category{font-size:12px;padding:3px 12px;border-radius:999px;background:rgba(226,71,47,.1);color:var(--primary);font-weight:600;}
.news-summary{color:var(--text-light);font-size:15px;}
.news-body{margin-top:14px;color:var(--text-light);font-size:15px;}
.news-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px;}
.tag{font-size:13px;padding:4px 14px;border-radius:999px;background:var(--bg-alt);border:1px solid var(--border);color:var(--text-light);}

.faq-list{display:flex;flex-direction:column;gap:16px;max-width:880px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);}
.faq-question{font-size:17px;font-weight:700;display:flex;gap:12px;align-items:flex-start;}
.faq-question::before{content:"问";flex:0 0 auto;width:24px;height:24px;border-radius:7px;background:var(--primary);color:#fff;font-size:13px;display:flex;align-items:center;justify-content:center;}
.faq-answer{margin-top:12px;padding-left:36px;color:var(--text-light);font-size:15px;}

.form-group{margin-bottom:20px;}
.form-label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.form-input,.form-select,.form-textarea{
  width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:10px;
  font-size:15px;font-family:inherit;background:#fff;color:var(--text);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-flex;align-items:center;justify-content:center;
  padding:13px 34px;border-radius:999px;background:var(--primary);color:#fff;
  font-size:15px;font-weight:600;transition:all .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:22px 14px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);}
.stat-number{font-size:30px;font-weight:800;color:var(--primary);}
.stat-label{margin-top:6px;font-size:14px;color:var(--text-light);}
.progress{height:9px;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(--primary-light));}
.bar-chart{display:flex;align-items:flex-end;gap:22px;height:230px;padding-top:16px;}
.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;}
.bar-fill{width:100%;max-width:54px;border-radius:8px 8px 0 0;background:linear-gradient(180deg,var(--primary-light),var(--primary));}
.bar-label{margin-top:10px;font-size:13px;color:var(--text-light);text-align:center;}

.badge{display:inline-block;font-size:12px;padding:4px 12px;border-radius:999px;background:rgba(31,157,143,.12);color:var(--accent);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);}
.partner-logo{
  display:flex;align-items:center;justify-content:center;height:76px;
  border:1px dashed var(--border);border-radius:var(--radius);color:var(--text-light);
  font-size:14px;background:#fff;
}
.step-list{display:flex;flex-direction:column;gap:18px;}
.step-item{display:flex;gap:18px;align-items:flex-start;}
.step-number{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;background:var(--primary);
  color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:17px;
}

.footer{background:#171a20;color:#b9bfc9;padding:64px 0 26px;}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;}
.footer-col{font-size:14px;line-height:2;}
.footer-title{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px;}
.footer-link{display:block;color:#b9bfc9;font-size:14px;transition:color .2s;}
.footer-link:hover{color:var(--primary-light);}
.footer-info{font-size:14px;line-height:2;color:#b9bfc9;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid #2b2f38;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#8a919c;
}

@media (max-width:1200px){
  .container,.nav-inner,.hero-inner{max-width:1000px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:992px){
  .section{padding:64px 0;}
  .hero{padding:130px 0 70px;}
  .hero-title{font-size:40px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .footer-inner{grid-template-columns:1fr 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:0;background:#fff;border-bottom:1px solid var(--border);
    padding:10px 20px 18px;box-shadow:0 12px 24px rgba(20,25,35,.09);
  }
  .nav-list.open{display:flex;}
  .nav-list .nav-link{display:block;width:100%;padding:12px 0;border-bottom:1px solid var(--border);}
  .nav-toggle{display:flex;}
  .nav-cta .btn{display:none;}
  .hero-title{font-size:32px;}
  .hero-subtitle{font-size:16px;}
  .section-title{font-size:26px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .bar-chart{gap:12px;height:190px;}
}
@media (max-width:480px){
  .hero{padding:118px 0 60px;}
  .hero-title{font-size:26px;}
  .hero-stats{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .section{padding:50px 0;}
  .card{padding:22px;}
  .footer-inner{grid-template-columns:1fr;}
}