:root{
  --primary:#2f6fed;
  --primary-dark:#1f4fbb;
  --primary-light:#e8f0ff;
  --accent:#ff8a3d;
  --text:#1d2433;
  --text-light:#5b6478;
  --bg:#ffffff;
  --bg-alt:#f5f7fb;
  --border:#e3e8f0;
  --shadow:0 6px 24px rgba(29,36,51,.08);
  --radius:14px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
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;
  padding-top:68px;
}
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 48px}
.section-title{font-size:32px;line-height:1.35;font-weight:800;letter-spacing:.5px;color:var(--text)}
.section-subtitle{margin-top:14px;color:var(--text-light);font-size:16px}

.grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.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-wrap:wrap;align-items:center}
.flex-between{display:flex;gap:16px;flex-wrap:wrap;align-items:center;justify-content:space-between}

.card{
  background:#fff;
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow);
  transition:transform .3s ease,box-shadow .3s ease;
  border:1px solid var(--border);
}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(29,36,51,.12)}
.card-icon{
  width:52px;height:52px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);
  font-size:22px;font-weight:800;margin-bottom:18px;
}
.card-title{font-size:19px;font-weight:700;margin-bottom:10px;color:var(--text)}
.card-text{color:var(--text-light);font-size:15px;line-height:1.75}
.card-body{margin-top:10px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:999px;font-size:15px;font-weight:600;
  transition:all .25s ease;border:2px solid transparent;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(47,111,237,.28)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-light)}
.btn-sm{padding:8px 18px;font-size:13px}

.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 var(--border);
  transition:box-shadow .3s ease;
}
.nav.scrolled{box-shadow:0 4px 20px rgba(29,36,51,.1)}
.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{
  display:flex;align-items:center;gap:10px;
  font-size:20px;font-weight:800;color:var(--primary);white-space:nowrap;
}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-link{
  display:block;padding:8px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--text-light);
  transition:all .2s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-light)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:8px;
  align-items:center;justify-content:center;font-size:22px;color:var(--text);
  border:1px solid var(--border);
}
.nav-cta{display:inline-flex}

.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#f0f5ff 0%,#ffffff 55%,#fff4ec 100%);
  padding:72px 0 64px;
}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;text-align:center}
.hero-title{
  font-size:46px;line-height:1.25;font-weight:900;letter-spacing:1px;
  color:var(--text);
}
.hero-title span{color:var(--primary)}
.hero-subtitle{
  margin:22px auto 0;max-width:720px;
  font-size:17px;color:var(--text-light);line-height:1.85;
}
.hero-actions{
  margin-top:34px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap;
}
.hero-stats{
  margin-top:56px;display:grid;gap:20px;grid-template-columns:repeat(4,1fr);
  max-width:960px;margin-left:auto;margin-right: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:28px;font-weight:800;color:var(--primary);line-height:1.2}
.hero-stat-label{margin-top:6px;font-size:13px;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:28px}
.timeline-item:last-child{margin-bottom:0}
.timeline-dot{
  position:absolute;left:-28px;top:6px;width:18px;height:18px;border-radius:50%;
  background:var(--primary);border:4px solid #fff;box-shadow:0 0 0 2px var(--primary-light);
}
.timeline-content{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow)}
.timeline-date{font-size:13px;color:var(--primary);font-weight:600;margin-bottom:6px}
.timeline-title{font-size:17px;font-weight:700;margin-bottom:8px}
.timeline-text{font-size:14px;color:var(--text-light)}

.news-list{display:grid;gap:18px}
.news-item{border:1px solid var(--border);border-radius:var(--radius);padding:22px;background:#fff;transition:box-shadow .3s ease}
.news-item:hover{box-shadow:var(--shadow)}
.news-title{font-size:17px;font-weight:700;margin-bottom:8px}
.news-meta{display:flex;gap:12px;align-items:center;font-size:13px;color:var(--text-light);margin-bottom:10px;flex-wrap:wrap}
.news-date{color:var(--text-light)}
.news-category{background:var(--primary-light);color:var(--primary);padding:2px 10px;border-radius:999px;font-weight:600}
.news-summary{font-size:14px;color:var(--text-light)}
.news-body{font-size:14px;color:var(--text-light);margin-top:10px}
.news-tags{display:flex;gap:8px;flex-wrap:wrap;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}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);padding:22px;background:#fff}
.faq-question{font-size:16px;font-weight:700;margin-bottom:10px;color:var(--text)}
.faq-answer{font-size:14px;color:var(--text-light);line-height:1.8}

.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 ease;
}
.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 36px;border-radius:999px;background:var(--primary);color:#fff;
  font-size:15px;font-weight:600;transition:background .25s ease;
}
.form-submit:hover{background:var(--primary-dark)}
.form-tip{font-size:12px;color:var(--text-light);margin-top:10px}

.stat-item{text-align:center;padding:16px}
.stat-number{font-size:30px;font-weight:800;color:var(--primary)}
.stat-label{font-size:13px;color:var(--text-light);margin-top:4px}
.progress{height:10px;background:var(--bg-alt);border-radius:999px;overflow:hidden;margin-top:8px}
.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:16px 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:46px;background:linear-gradient(180deg,var(--primary),var(--primary-dark));border-radius:8px 8px 0 0;transition:height .4s ease}
.bar-label{font-size:12px;color:var(--text-light);margin-top:8px}

.badge{
  display:inline-block;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;
  background:var(--primary-light);color:var(--primary);
}
.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 ease,box-shadow .3s ease;
}
.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:80px;border:1px dashed var(--border);border-radius:var(--radius);
  color:var(--text-light);font-size:14px;background:#fff;
}
.step-list{display:grid;gap:20px}
.step-item{display:flex;gap:18px;align-items:flex-start}
.step-number{
  flex:0 0 44px;width:44px;height:44px;border-radius:50%;
  background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:17px;
}

.footer{background:#141a26;color:#c3cad8;padding:60px 0 0}
.footer-inner{
  max-width:1200px;margin:0 auto;padding:0 20px 48px;
  display:grid;gap:36px;grid-template-columns:repeat(4,1fr);
}
.footer-col{min-width:0}
.footer-title{font-size:16px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-link{display:block;font-size:14px;color:#c3cad8;padding:5px 0;transition:color .2s ease}
.footer-link:hover{color:#fff}
.footer-info{font-size:14px;line-height:2;color:#c3cad8}
.footer-bottom{
  border-top:1px solid #28303f;padding:20px;
  text-align:center;font-size:13px;color:#8b95a8;
}

@media (min-width:1200px){
  .hero-title{font-size:50px}
}
@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)}
  .hero-title{font-size:38px}
  .footer-inner{grid-template-columns:repeat(2,1fr)}
  .nav-list{display:none}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .nav-list.open{
    display:flex;flex-direction:column;align-items:stretch;
    position:absolute;top:68px;left:0;right:0;background:#fff;
    padding:14px 20px 22px;border-bottom:1px solid var(--border);
    box-shadow:0 12px 24px rgba(29,36,51,.1);gap:4px;
  }
}
@media (max-width:768px){
  body{font-size:15px}
  .section{padding:56px 0}
  .section-title{font-size:26px}
  .hero{padding:52px 0 46px}
  .hero-title{font-size:30px}
  .hero-subtitle{font-size:15px}
  .grid,.grid-2,.grid-3{grid-template-columns:1fr}
  .card{padding:22px}
  .bar-chart{height:160px}
}
@media (max-width:480px){
  .hero-title{font-size:26px}
  .hero-stats{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .footer-inner{grid-template-columns:1fr}
  .section-title{font-size:23px}
  .btn{padding:12px 22px;font-size:14px}
}