:root{
  --primary:#e0303a;
  --primary-dark:#b3222b;
  --primary-light:#ff5f68;
  --accent:#1b2a4a;
  --text:#1f2329;
  --text-light:#5c6570;
  --bg:#ffffff;
  --bg-alt:#f5f6f8;
  --border:#e4e7ec;
  --shadow:0 6px 20px rgba(20,25,40,.08);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",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{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;justify-content:space-between;align-items:center;gap:16px;}
.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 14px 32px rgba(20,25,40,.14);}
.card-icon{width:52px;height:52px;border-radius:12px;background:rgba(224,48,58,.1);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;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);}
.card-body{font-size:15px;color:var(--text-light);}
.btn{display:inline-block;padding:13px 30px;border-radius:40px;font-size:16px;font-weight:600;cursor:pointer;border:2px solid transparent;transition:all .3s;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:#fff;border-color:rgba(255,255,255,.7);}
.btn-outline:hover{background:#fff;color:var(--primary);}
.btn-sm{padding:8px 20px;font-size:14px;}
.nav{position:fixed;top:0;left:0;width:100%;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);z-index:1000;transition:box-shadow .3s;border-bottom:1px solid transparent;}
.nav.scrolled{box-shadow:0 4px 18px rgba(20,25,40,.1);border-bottom-color:var(--border);}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.nav-logo{font-size:22px;font-weight:800;color:var(--primary);letter-spacing:1px;}
.nav-logo span{color:var(--accent);}
.nav-list{display:flex;gap:26px;align-items:center;}
.nav-link{font-size:15px;color:var(--text);font-weight:500;position:relative;transition:color .3s;}
.nav-link:hover{color:var(--primary);}
.nav-toggle{display:none;background:none;border:none;font-size:26px;color:var(--text);cursor:pointer;line-height:1;}
.nav-cta{padding:9px 22px;background:var(--primary);color:#fff;border-radius:40px;font-size:14px;font-weight:600;transition:background .3s;}
.nav-cta:hover{background:var(--primary-dark);}
.hero{position:relative;background:linear-gradient(135deg,#141c30 0%,#1b2a4a 55%,#3a1d24 100%);color:#fff;padding:150px 0 90px;overflow:hidden;}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:2;}
.hero-title{font-size:46px;letter-spacing:1px;margin-bottom:20px;max-width:820px;}
.hero-title em{color:var(--primary-light);font-style:normal;}
.hero-subtitle{font-size:18px;color:rgba(255,255,255,.85);max-width:680px;margin-bottom:34px;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;border-top:1px solid rgba(255,255,255,.14);padding-top:34px;}
.hero-stat{text-align:left;}
.hero-stat-num{font-size:30px;font-weight:800;color:#fff;display:block;}
.hero-stat-label{font-size:14px;color:rgba(255,255,255,.7);}
.timeline{position:relative;padding-left:28px;border-left:2px solid var(--border);}
.timeline-item{position:relative;padding-bottom:32px;}
.timeline-dot{position:absolute;left:-37px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--primary);border:3px solid #fff;box-shadow:0 0 0 2px var(--primary);}
.timeline-content{padding-left:6px;}
.timeline-date{font-size:13px;color:var(--primary);font-weight:700;}
.timeline-title{font-size:18px;margin:6px 0 8px;}
.timeline-text{font-size:15px;color:var(--text-light);}
.news-list{display:flex;flex-direction:column;gap:20px;}
.news-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;}
.news-item:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(20,25,40,.12);}
.news-title{font-size:19px;margin-bottom:8px;}
.news-meta{display:flex;gap:12px;align-items:center;font-size:13px;color:var(--text-light);margin-bottom:10px;}
.news-date{color:var(--text-light);}
.news-category{background:rgba(224,48,58,.1);color:var(--primary);padding:2px 12px;border-radius:20px;font-weight:600;font-size:12px;}
.news-summary{font-size:15px;color:var(--text-light);}
.news-body{font-size:15px;color:var(--text-light);margin-top:10px;}
.news-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{font-size:12px;color:var(--accent);background:var(--bg-alt);border:1px solid var(--border);padding:3px 12px;border-radius:20px;}
.faq-list{display:flex;flex-direction:column;gap:16px;max-width:860px;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;color:var(--text);margin-bottom:10px;}
.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;color:var(--text);}
.form-input,.form-select,.form-textarea{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:10px;font-size:15px;color:var(--text);font-family:inherit;background:#fff;transition:border-color .3s;}
.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-block;padding:13px 38px;background:var(--primary);color:#fff;border:none;border-radius:40px;font-size:16px;font-weight:600;cursor:pointer;transition:background .3s;}
.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:24px 16px;}
.stat-number{font-size:34px;font-weight:800;color:var(--primary);display:block;}
.stat-label{font-size:14px;color:var(--text-light);}
.progress{height:10px;background:var(--bg-alt);border-radius:20px;overflow:hidden;margin-top:10px;}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--primary-light));border-radius:20px;}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:220px;padding:20px 0;}
.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;}
.bar-fill{width:70%;background:linear-gradient(180deg,var(--primary-light),var(--primary));border-radius:8px 8px 0 0;min-height:6px;}
.bar-label{font-size:13px;color:var(--text-light);margin-top:10px;}
.badge{display:inline-block;font-size:12px;font-weight:700;color:var(--primary);background:rgba(224,48,58,.1);padding:4px 14px;border-radius:20px;margin-bottom:14px;}
.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);box-shadow:0 14px 32px rgba(20,25,40,.13);}
.partner-logo{height:76px;display:flex;align-items:center;justify-content:center;background:#fff;border:1px dashed var(--border);border-radius:var(--radius);color:var(--text-light);font-size:14px;}
.step-list{display:flex;flex-direction:column;gap:22px;}
.step-item{display:flex;gap:18px;align-items:flex-start;}
.step-number{flex-shrink:0;width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;}
.footer{background:var(--accent);color:rgba(255,255,255,.78);padding:60px 0 0;}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:36px;}
.footer-col{font-size:14px;}
.footer-title{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px;}
.footer-link{display:block;color:rgba(255,255,255,.72);font-size:14px;margin-bottom:10px;transition:color .3s;}
.footer-link:hover{color:var(--primary-light);}
.footer-info{font-size:14px;line-height:2;color:rgba(255,255,255,.72);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:44px;padding:22px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.55);}
@media (max-width:1200px){
  .hero-title{font-size:40px;}
  .footer-inner{grid-template-columns:1.6fr 1fr 1fr;gap:28px;}
}
@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);gap:26px;}
  .hero-title{font-size:34px;}
  .footer-inner{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section-title{font-size:26px;}
  .nav-list{position:fixed;top:70px;left:0;width:100%;background:#fff;flex-direction:column;gap:0;padding:10px 0;border-bottom:1px solid var(--border);box-shadow:0 10px 24px rgba(20,25,40,.1);transform:translateY(-140%);transition:transform .3s;max-height:calc(100vh - 70px);overflow-y:auto;}
  .nav-list.open{transform:translateY(0);}
  .nav-list li{width:100%;}
  .nav-link{display:block;padding:14px 24px;}
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
  .hero{padding:120px 0 70px;}
  .hero-title{font-size:29px;}
  .hero-subtitle{font-size:16px;}
  .grid-3,.grid-4,.grid-2{grid-template-columns:repeat(2,1fr);}
  .footer-inner{grid-template-columns:1fr;}
}
@media (max-width:480px){
  .hero-title{font-size:25px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .btn{width:100%;}
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:1fr 1fr;}
  .hero-stat-num{font-size:24px;}
  .card{padding:22px;}
}