:root{
  --primary:#1a7f6b;
  --primary-dark:#12604f;
  --primary-light:#e6f4f0;
  --accent:#f2a93b;
  --text:#1f2a2e;
  --text-light:#5c6b70;
  --bg:#ffffff;
  --bg-alt:#f5f9f8;
  --border:#e0e8e6;
  --shadow:0 4px 18px rgba(26,127,107,.10);
  --radius:14px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,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(--text);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;gap:16px;}
.flex-between{display:flex;align-items:center;justify-content:space-between;gap:16px;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 10px 28px rgba(26,127,107,.16);}
.card-body{display:block;}
.card-icon{
  width:52px;height:52px;border-radius:12px;
  background:var(--primary-light);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;
  font-size:24px;font-weight:700;margin-bottom:18px;
}
.card-title{font-size:19px;margin-bottom:10px;color:var(--text);}
.card-text{font-size:15px;color:var(--text-light);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:100px;font-size:16px;font-weight:600;
  cursor:pointer;border:2px solid transparent;transition:all .25s;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background: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:14px;}

.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 3px 16px rgba(0,0,0,.08);border-color:var(--border);}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 20px;
  height:66px;display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--primary-dark);}
.nav-logo span{font-size:11px;font-weight:600;color:var(--text-light);display:block;line-height:1.2;}
.nav-list{display:flex;align-items:center;gap:6px;}
.nav-link{
  display:block;padding:9px 14px;border-radius:8px;font-size:15px;color:var(--text);
  transition:background .2s,color .2s;white-space:nowrap;
}
.nav-link:hover{background:var(--primary-light);color:var(--primary-dark);}
.nav-cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;background:transparent;border:none;cursor:pointer;
  flex-direction:column;gap:5px;padding:8px;
}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;}

.hero{
  padding:140px 0 80px;
  background:linear-gradient(160deg,#eef8f5 0%,#ffffff 55%,#f7fbfa 100%);
  position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:60px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(26,127,107,.10),transparent 70%);border-radius:50%;
}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}
.hero-title{
  font-size:46px;line-height:1.25;letter-spacing:.5px;max-width:860px;
  color:var(--text);margin-bottom:20px;
}
.hero-title em{font-style:normal;color:var(--primary);}
.hero-subtitle{
  font-size:18px;color:var(--text-light);max-width:680px;margin-bottom:32px;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px;}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:820px;}
.hero-stat{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:22px 24px;box-shadow:var(--shadow);
}
.hero-stat-num{display:block;font-size:30px;font-weight:800;color:var(--primary-dark);line-height:1.2;}
.hero-stat-label{display:block;font-size:14px;color:var(--text-light);margin-top:4px;}

.timeline{position:relative;padding-left:8px;}
.timeline-item{position:relative;padding-left:34px;padding-bottom:32px;}
.timeline-dot{
  position:absolute;left:0;top:6px;width:14px;height:14px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px var(--primary-light);
}
.timeline-content{}
.timeline-date{font-size:13px;color:var(--accent);font-weight:700;letter-spacing:1px;}
.timeline-title{font-size:18px;margin:6px 0 6px;}
.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;margin-bottom:8px;}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-light);margin-bottom:10px;}
.news-date{}
.news-category{background:var(--primary-light);color:var(--primary-dark);padding:2px 10px;border-radius:100px;font-size:12px;}
.news-summary{font-size:15px;color:var(--text-light);}
.news-body{font-size:15px;color:var(--text-light);}
.news-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-block;font-size:12px;padding:3px 10px;border-radius:100px;
  background:var(--bg-alt);color:var(--primary-dark);border:1px solid var(--border);
}

.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:17px;font-weight:700;margin-bottom:8px;}
.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;}
.form-input,.form-select,.form-textarea{
  width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;
  font-size:15px;font-family:inherit;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:120px;resize:vertical;}
.form-submit{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 34px;border-radius:100px;border:none;cursor:pointer;
  background:var(--primary);color:#fff;font-size:16px;font-weight:600;
  transition:background .25s,transform .25s;
}
.form-submit:hover{background:var(--primary-dark);transform:translateY(-2px);}
.form-tip{font-size:13px;color:var(--text-light);margin-top:10px;}

.stat-item{text-align:center;padding:18px;}
.stat-number{display:block;font-size:32px;font-weight:800;color:var(--primary-dark);}
.stat-label{display:block;font-size:14px;color:var(--text-light);margin-top:4px;}
.progress{height:10px;background:var(--bg-alt);border-radius:100px;overflow:hidden;margin-top:10px;}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:100px;}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:200px;padding:12px 0;}
.bar-item{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;}
.bar-fill{width:100%;max-width:46px;background:linear-gradient(180deg,var(--primary),var(--primary-light));border-radius:8px 8px 0 0;}
.bar-label{font-size:12px;color:var(--text-light);margin-top:8px;}

.badge{
  display:inline-block;font-size:12px;font-weight:600;padding:4px 12px;border-radius:100px;
  background:var(--primary-light);color:var(--primary-dark);
}
.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;
}
.customer-card:hover,.case-card:hover,.honor-card:hover,.review-card:hover,
.benefit-card:hover,.region-card:hover,.support-card:hover{transform:translateY(-3px);}
.partner-logo{
  display:flex;align-items:center;justify-content:center;min-height:78px;
  background:#fff;border:1px dashed var(--border);border-radius:var(--radius);
  color:var(--text-light);font-size:14px;
}
.step-list{display:grid;gap:20px;}
.step-item{display:flex;gap:18px;align-items:flex-start;}
.step-number{
  flex:0 0 auto;width:40px;height:40px;border-radius:50%;
  background:var(--primary);color:#fff;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}

.footer{background:#10241f;color:#c9d8d3;padding:64px 0 24px;}
.footer-inner{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;
  max-width:1200px;margin:0 auto;padding:0 20px;
}
.footer-col{}
.footer-title{font-size:16px;color:#fff;margin-bottom:16px;}
.footer-link{display:block;font-size:14px;color:#c9d8d3;padding:5px 0;transition:color .2s;}
.footer-link:hover{color:var(--accent);}
.footer-info{font-size:14px;line-height:1.9;color:#c9d8d3;}
.footer-bottom{
  max-width:1200px;margin:40px auto 0;padding:20px 20px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#8fa5a0;text-align:center;
}

@media (max-width:1200px){
  .hero-title{font-size:40px;}
}
@media (max-width:992px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .footer-inner{grid-template-columns:repeat(2,1fr);}
  .hero-title{font-size:34px;}
  .hero-stats{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section-title{font-size:26px;}
  .hero{padding:110px 0 56px;}
  .hero-title{font-size:28px;}
  .hero-subtitle{font-size:16px;}
  .nav-list{
    position:absolute;top:66px;left:0;right:0;flex-direction:column;
    background:#fff;border-bottom:1px solid var(--border);
    padding:12px 20px;gap:4px;display:none;
  }
  .nav-list.open{display:flex;}
  .nav-link{width:100%;padding:11px 12px;}
  .nav-toggle{display:flex;}
  .nav-cta .btn-sm{display:none;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:1fr;}
  .footer-inner{grid-template-columns:1fr;}
}
@media (max-width:480px){
  .hero-title{font-size:24px;}
  .hero-actions .btn{width:100%;}
  .section-title{font-size:22px;}
  .card{padding:22px;}
}