:root{
  --primary:#2f5d50;
  --primary-dark:#22443b;
  --primary-light:#e6efea;
  --accent:#b07d3b;
  --text:#232a28;
  --text-light:#6b7573;
  --bg:#fbfaf7;
  --bg-alt:#f1efe8;
  --border:#e3e0d8;
  --shadow:0 6px 24px rgba(47,93,80,.08);
  --radius:12px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"Songti SC","STSong","Noto Serif SC",Georgia,"Microsoft YaHei",sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
img{max-width:100%;display:block;}
button{font-family: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:2rem;line-height:1.35;letter-spacing:.04em;
  color:var(--primary-dark);margin-bottom:14px;position:relative;padding-bottom:16px;
}
.section-title::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:56px;height:2px;background:var(--accent);
}
.section-subtitle{color:var(--text-light);font-size:1rem;}
.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-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 14px 34px rgba(47,93,80,.14);}
.card-icon{
  width:52px;height:52px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary-dark);font-size:1.4rem;margin-bottom:18px;
}
.card-title{font-size:1.12rem;color:var(--primary-dark);margin-bottom:10px;letter-spacing:.03em;}
.card-text{color:var(--text-light);font-size:.95rem;}
.card-body{color:var(--text);font-size:.95rem;}
.btn{
  display:inline-block;padding:12px 26px;border-radius:999px;font-size:.95rem;
  border:1px solid transparent;transition:background .25s,color .25s,border-color .25s,transform .25s;
  letter-spacing:.05em;text-align:center;
}
.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);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:8px 18px;font-size:.85rem;}
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(251,250,247,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;transition:box-shadow .3s,border-color .3s;
}
.nav.scrolled{box-shadow:0 4px 18px rgba(47,93,80,.1);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:1.28rem;font-weight:700;color:var(--primary-dark);letter-spacing:.16em;
  display:flex;align-items:center;gap:8px;
}
.nav-logo::before{
  content:"";width:10px;height:22px;border-radius:2px;
  background:linear-gradient(180deg,var(--accent),var(--primary));
}
.nav-list{display:flex;align-items:center;gap:6px;}
.nav-link{
  display:block;padding:8px 14px;border-radius:8px;font-size:.95rem;color:var(--text);
  transition:color .25s,background .25s;
}
.nav-link:hover{color:var(--primary-dark);background:var(--primary-light);}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--border);border-radius:8px;
  width:42px;height:38px;color:var(--primary-dark);font-size:1.2rem;line-height:1;
}
.nav-cta{display:flex;align-items:center;gap:10px;}
.hero{
  padding:150px 0 90px;position:relative;
  background:
    radial-gradient(circle at 85% 12%,rgba(176,125,59,.12),transparent 46%),
    radial-gradient(circle at 8% 82%,rgba(47,93,80,.10),transparent 44%),
    var(--bg);
  border-bottom:1px solid var(--border);
}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;text-align:center;}
.hero-title{
  font-size:2.9rem;line-height:1.32;letter-spacing:.08em;
  color:var(--primary-dark);margin-bottom:20px;font-weight:700;
}
.hero-subtitle{
  max-width:760px;margin:0 auto 34px;color:var(--text-light);font-size:1.08rem;
}
.hero-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:56px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  max-width:900px;margin:0 auto;padding:28px 20px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);
}
.hero-stat{text-align:center;}
.hero-stat-num{font-size:1.9rem;font-weight:700;color:var(--primary);letter-spacing:.03em;display:block;}
.hero-stat-label{font-size:.88rem;color:var(--text-light);}
.timeline{position:relative;max-width:820px;margin:0 auto;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:30px;}
.timeline-dot{
  position:absolute;left:-28px;top:6px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--primary);
}
.timeline-content{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;}
.timeline-date{font-size:.82rem;color:var(--accent);letter-spacing:.06em;}
.timeline-title{font-size:1.05rem;color:var(--primary-dark);margin:6px 0 8px;}
.timeline-text{color:var(--text-light);font-size:.93rem;}
.news-list{display:grid;gap:18px;}
.news-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:24px 28px;transition:box-shadow .3s,transform .3s;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.news-title{font-size:1.05rem;color:var(--primary-dark);margin-bottom:8px;}
.news-meta{display:flex;align-items:center;gap:12px;font-size:.82rem;color:var(--text-light);margin-bottom:8px;}
.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:.78rem;
}
.news-summary{color:var(--text-light);font-size:.93rem;}
.news-body{color:var(--text);font-size:.95rem;}
.news-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.tag{
  display:inline-block;padding:3px 12px;border-radius:999px;font-size:.78rem;
  background:var(--bg-alt);color:var(--text-light);border:1px solid var(--border);
}
.faq-list{display:grid;gap:16px;max-width:860px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 26px;}
.faq-question{font-size:1.02rem;color:var(--primary-dark);margin-bottom:8px;font-weight:700;}
.faq-answer{color:var(--text-light);font-size:.94rem;}
.form-group{margin-bottom:20px;}
.form-label{display:block;font-size:.9rem;color:var(--primary-dark);margin-bottom:8px;}
.form-input,.form-select,.form-textarea{
  width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:8px;
  font-size:.95rem;font-family:inherit;color:var(--text);background:#fff;
  transition:border-color .25s,box-shadow .25s;
}
.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-block;padding:12px 34px;border:none;border-radius:999px;
  background:var(--primary);color:#fff;font-size:.95rem;letter-spacing:.06em;
  transition:background .25s,transform .25s;
}
.form-submit:hover{background:var(--primary-dark);transform:translateY(-2px);}
.form-tip{font-size:.82rem;color:var(--text-light);margin-top:10px;}
.stat-item{text-align:center;}
.stat-number{font-size:2rem;font-weight:700;color:var(--primary);display:block;letter-spacing:.02em;}
.stat-label{font-size:.88rem;color:var(--text-light);}
.progress{height:10px;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(--accent));}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:220px;padding-top:10px;}
.bar-item{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;}
.bar-fill{width:100%;max-width:52px;border-radius:8px 8px 0 0;background:linear-gradient(180deg,var(--primary-light),var(--primary));}
.bar-label{font-size:.8rem;color:var(--text-light);margin-top:8px;text-align:center;}
.badge{
  display:inline-block;padding:3px 12px;border-radius:999px;font-size:.78rem;
  background:var(--accent);color:#fff;letter-spacing:.05em;
}
.customer-card,.case-card,.honor-card,.review-card,.benefit-card,.support-card,.region-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,.support-card:hover,.region-card:hover{transform:translateY(-4px);}
.partner-logo{
  display:flex;align-items:center;justify-content:center;min-height:76px;
  border:1px dashed var(--border);border-radius:var(--radius);
  background:#fff;color:var(--text-light);font-size:.86rem;letter-spacing:.06em;
}
.step-list{display:grid;gap:22px;}
.step-item{display:flex;gap:18px;align-items:flex-start;}
.step-number{
  flex:0 0 auto;width:42px;height:42px;border-radius:50%;
  background:var(--primary-light);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;font-weight:700;
}
.footer{background:var(--primary-dark);color:#dfe6e2;padding:60px 0 0;}
.footer-inner{
  max-width:1200px;margin:0 auto;padding:0 20px 44px;
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;
}
.footer-col{font-size:.9rem;}
.footer-title{color:#fff;font-size:1rem;margin-bottom:16px;letter-spacing:.08em;}
.footer-link{display:block;color:#c4d1cb;padding:5px 0;transition:color .25s;}
.footer-link:hover{color:#fff;}
.footer-info{color:#c4d1cb;line-height:2;font-size:.9rem;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:18px 20px;text-align:center;
  font-size:.82rem;color:#a9bcb5;
}
@media (max-width:1200px){
  .container,.nav-inner,.hero-inner,.footer-inner{padding-left:18px;padding-right:18px;}
  .hero-title{font-size:2.5rem;}
}
@media (max-width:992px){
  .section{padding:64px 0;}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .footer-inner{grid-template-columns:repeat(2,1fr);}
  .nav-list{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:var(--bg);border-bottom:1px solid var(--border);
    box-shadow:0 12px 24px rgba(47,93,80,.1);
    padding:10px 16px 16px;display:none;
  }
  .nav-list.open{display:flex;}
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
  .hero{padding:130px 0 72px;}
}
@media (max-width:768px){
  body{font-size:15px;}
  .section{padding:52px 0;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero-title{font-size:2rem;letter-spacing:.05em;}
  .hero-subtitle{font-size:1rem;}
  .hero-stats{grid-template-columns:repeat(2,1fr);padding:22px 14px;}
  .hero-stat-num{font-size:1.5rem;}
  .section-title{font-size:1.5rem;}
  .card{padding:22px;}
  .footer-inner{grid-template-columns:1fr;gap:26px;}
}
@media (max-width:480px){
  .hero{padding:118px 0 56px;}
  .hero-title{font-size:1.62rem;}
  .hero-stats{grid-template-columns:1fr;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .news-item,.faq-item{padding:18px;}
  .timeline{padding-left:22px;}
}