:root{
  --primary:#f0871f;
  --primary-dark:#c96a0c;
  --primary-light:#fdeedd;
  --accent:#3f7fd6;
  --text:#22262c;
  --text-light:#6b7280;
  --bg:#ffffff;
  --bg-alt:#f7f8fa;
  --border:#e6e8ec;
  --shadow:0 6px 22px rgba(24,32,48,.08);
  --radius:14px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;}
a:hover{color:var(--primary-dark);}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0 0 12px;}
img{max-width:100%;display:block;}
.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;line-height:1.35;font-weight:700;letter-spacing:.5px;}
.section-subtitle{color:var(--text-light);font-size:16px;}
.grid{display:grid;gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.flex{display:flex;gap:16px;align-items:center;}
.flex-between{display:flex;gap:16px;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,border-color .3s;
}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(24,32,48,.14);border-color:var(--primary-light);}
.card-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;border-radius:12px;margin-bottom:16px;
  background:var(--primary-light);color:var(--primary-dark);
  font-size:22px;font-weight:700;
}
.card-title{font-size:19px;font-weight:700;margin-bottom:8px;}
.card-text{color:var(--text-light);font-size:15px;margin:0;}
.card-body{margin-top:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;transition:all .25s;
  background:var(--primary-light);color:var(--primary-dark);
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);}
.btn-outline{background:transparent;border-color:var(--border);color:var(--text);}
.btn-outline:hover{border-color:var(--primary);color:var(--primary-dark);}
.btn-sm{padding:8px 18px;font-size:14px;}
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.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(24,32,48,.1);border-color:var(--border);}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:12px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:.5px;}
.nav-logo::before{
  content:"橘";display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;
  font-size:17px;font-weight:700;
}
.nav-list{display:flex;align-items:center;gap:8px;}
.nav-link{padding:8px 14px;border-radius:8px;font-size:15px;color:var(--text);transition:background .2s,color .2s;}
.nav-link:hover{background:var(--primary-light);color:var(--primary-dark);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--border);background:#fff;
  border-radius:10px;cursor:pointer;position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:20px;height:2px;background:var(--text);border-radius:2px;transition:.25s;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;}
.nav-toggle span::after{content:"";top:6px;}
.nav-cta{display:flex;align-items:center;gap:10px;}
.hero{
  padding:150px 0 70px;
  background:linear-gradient(160deg,#fffaf3 0%,#ffffff 55%,#f4f7fd 100%);
  position:relative;overflow:hidden;
}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;text-align:center;}
.hero-title{font-size:44px;line-height:1.3;font-weight:800;letter-spacing:1px;margin-bottom:16px;}
.hero-title em{font-style:normal;color:var(--primary-dark);}
.hero-subtitle{max-width:720px;margin:0 auto 30px;color:var(--text-light);font-size:17px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:52px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:880px;margin:0 auto;}
.hero-stat{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 14px;box-shadow:var(--shadow);}
.hero-stat-num{font-size:26px;font-weight:800;color:var(--primary-dark);}
.hero-stat-label{font-size:14px;color:var(--text-light);}
.timeline{position:relative;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--border);}
.timeline-item{position:relative;margin-bottom:26px;}
.timeline-dot{position:absolute;left:-28px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--primary);border:3px solid var(--primary-light);}
.timeline-content{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px 22px;}
.timeline-date{font-size:13px;color:var(--primary-dark);font-weight:600;}
.timeline-title{font-size:17px;font-weight:700;margin:4px 0 6px;}
.timeline-text{color:var(--text-light);font-size:15px;margin:0;}
.news-list{display:grid;gap:18px;}
.news-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 26px;transition:box-shadow .3s,transform .3s;}
.news-item:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(24,32,48,.12);}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:8px;font-size:13px;}
.news-date{color:var(--text-light);}
.news-category{background:var(--primary-light);color:var(--primary-dark);padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;}
.news-title{font-size:18px;font-weight:700;margin-bottom:8px;}
.news-summary{color:var(--text-light);font-size:15px;margin:0;}
.news-body{margin-top:10px;color:var(--text);font-size:15px;}
.news-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.tag{background:var(--bg-alt);border:1px solid var(--border);color:var(--text-light);font-size:12px;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:20px 24px;box-shadow:var(--shadow);}
.faq-question{font-size:17px;font-weight:700;margin-bottom:8px;}
.faq-answer{color:var(--text-light);font-size:15px;margin:0;}
.form-group{margin-bottom:18px;}
.form-label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;}
.form-input,.form-select,.form-textarea{
  width:100%;padding:11px 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;gap:8px;
  padding:12px 30px;border-radius:999px;border:none;cursor:pointer;
  background:var(--primary);color:#fff;font-size:15px;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:8px;}
.stat-item{text-align:center;padding:18px 10px;}
.stat-number{font-size:30px;font-weight:800;color:var(--primary-dark);}
.stat-label{font-size:14px;color:var(--text-light);}
.progress{height:10px;background:var(--bg-alt);border-radius:999px;overflow:hidden;}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:999px;}
.bar-chart{display:flex;align-items:flex-end;gap:16px;height:200px;padding:12px 4px;}
.bar-item{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;}
.bar-fill{width:100%;background:linear-gradient(180deg,var(--primary),var(--primary-dark));border-radius:8px 8px 0 0;}
.bar-label{font-size:13px;color:var(--text-light);margin-top:8px;}
.badge{display:inline-block;background:var(--primary-light);color:var(--primary-dark);font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;}
.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:24px;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 14px 32px rgba(24,32,48,.14);
}
.partner-logo{
  display:flex;align-items:center;justify-content:center;height:86px;
  background:#fff;border:1px dashed var(--border);border-radius:var(--radius);
  color:var(--text-light);font-size:14px;letter-spacing:1px;
}
.step-list{display:grid;gap:18px;}
.step-item{display:flex;gap:16px;align-items:flex-start;}
.step-number{
  flex:0 0 auto;width:38px;height:38px;border-radius:50%;
  background:var(--primary);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.footer{background:#1d2129;color:#c6cbd4;padding:64px 0 0;}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-col{font-size:14px;}
.footer-title{color:#fff;font-size:16px;font-weight:700;margin-bottom:14px;}
.footer-link{display:block;color:#a9b0bb;padding:5px 0;transition:color .2s;}
.footer-link:hover{color:var(--primary);}
.footer-info{font-size:14px;line-height:1.9;color:#a9b0bb;}
.footer-bottom{
  max-width:1200px;margin:40px auto 0;padding:20px;
  border-top:1px solid #2c323d;font-size:13px;color:#8a919c;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
}
@media (max-width:992px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .hero-title{font-size:36px;}
  .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:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--border);padding:10px 20px 18px;box-shadow:0 12px 24px rgba(24,32,48,.1);
  }
  .nav-list.open{display:flex;}
  .nav-list .nav-link{padding:12px 6px;border-bottom:1px solid var(--bg-alt);}
  .nav-toggle{display:block;}
  .nav-cta .btn{display:none;}
  .section{padding:60px 0;}
  .section-title{font-size:26px;}
  .hero{padding:120px 0 56px;}
  .hero-title{font-size:30px;}
  .grid,.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .bar-chart{height:160px;}
}
@media (max-width:480px){
  .hero-title{font-size:25px;}
  .hero-subtitle{font-size:15px;}
  .hero-stats{grid-template-columns:1fr;}
  .btn{padding:11px 20px;font-size:14px;}
  .card{padding:22px;}
  .footer-inner{grid-template-columns:1fr;}
}