:root{
  --primary:#c8102e;
  --primary-dark:#8f0a20;
  --primary-light:#fbe3e7;
  --accent:#1f2b3a;
  --text:#232323;
  --text-light:#6b7280;
  --bg:#ffffff;
  --bg-alt:#f6f7f9;
  --border:#e6e8ec;
  --shadow:0 4px 18px rgba(31,43,58,.08);
  --radius:12px;
}
*{margin:0;padding:0;box-sizing:border-box;}
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;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
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;font-weight:700;letter-spacing:.5px;color:var(--accent);}
.section-title::after{content:"";display:block;width:56px;height:3px;background:var(--primary);border-radius:2px;margin:16px auto 0;}
.section-subtitle{margin-top:16px;color:var(--text-light);font-size:16px;}
.grid{display:grid;gap:24px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
.flex{display:flex;gap:16px;align-items:center;}
.flex-between{display:flex;align-items:center;justify-content:space-between;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 12px 28px rgba(31,43,58,.14);}
.card-icon{width:48px;height:48px;border-radius:10px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;margin-bottom:18px;}
.card-title{font-size:18px;font-weight:700;color:var(--accent);margin-bottom:10px;}
.card-text{color:var(--text-light);font-size:15px;}
.card-body{margin-top:12px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .25s;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);}
.btn-outline{background:transparent;color:var(--accent);border-color:var(--accent);}
.btn-outline:hover{background:var(--accent);color:#fff;}
.btn-sm{padding:8px 16px;font-size:14px;}
.nav{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:box-shadow .3s,border-color .3s;}
.nav.scrolled{box-shadow:0 4px 18px rgba(31,43,58,.1);border-color:var(--border);}
.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{font-size:20px;font-weight:800;color:var(--accent);letter-spacing:.5px;display:flex;align-items:center;gap:8px;}
.nav-logo::before{content:"";width:10px;height:22px;border-radius:2px;background:var(--primary);display:inline-block;}
.nav-list{display:flex;align-items:center;gap:6px;}
.nav-link{padding:8px 14px;border-radius:8px;font-size:15px;color:var(--text);transition:color .2s,background .2s;}
.nav-link:hover{color:var(--primary);background:var(--primary-light);}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;border:1px solid var(--border);border-radius:8px;background:#fff;cursor:pointer;}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--accent);margin:0 auto;}
.nav-cta{display:inline-flex;}
.hero{padding:140px 0 80px;background:linear-gradient(160deg,#1f2b3a 0%,#2c3e50 55%,#8f0a20 100%);color:#fff;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;}
.hero-title span{color:#ff8fa0;}
.hero-subtitle{margin:22px auto 0;max-width:760px;font-size:17px;color:rgba(255,255,255,.85);}
.hero-actions{margin-top:36px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}
.hero-actions .btn-outline{color:#fff;border-color:rgba(255,255,255,.7);}
.hero-actions .btn-outline:hover{background:#fff;color:var(--accent);}
.hero-stats{margin-top:56px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.hero-stat{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:22px 16px;}
.hero-stat-num{font-size:28px;font-weight:800;color:#ff8fa0;}
.hero-stat-label{margin-top:6px;font-size:14px;color:rgba(255,255,255,.8);}
.timeline{position:relative;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:32px;}
.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:20px 22px;box-shadow:var(--shadow);}
.timeline-date{font-size:13px;color:var(--primary);font-weight:700;}
.timeline-title{font-size:17px;font-weight:700;color:var(--accent);margin:6px 0;}
.timeline-text{color:var(--text-light);font-size:15px;}
.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(-4px);}
.news-title{font-size:18px;font-weight:700;color:var(--accent);}
.news-meta{display:flex;align-items:center;gap:12px;margin:10px 0;}
.news-date{font-size:13px;color:var(--text-light);}
.news-category{font-size:12px;color:#fff;background:var(--primary);border-radius:999px;padding:2px 10px;}
.news-summary{color:var(--text-light);font-size:15px;}
.news-body{margin-top:12px;color:var(--text);font-size:15px;}
.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);border-radius:999px;padding:3px 10px;}
.faq-list{display:grid;gap:16px;max-width:880px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);}
.faq-question{font-size:17px;font-weight:700;color:var(--accent);display:flex;gap:10px;}
.faq-question::before{content:"问";flex:0 0 auto;width:24px;height:24px;border-radius:6px;background:var(--primary-light);color:var(--primary);font-size:13px;display:flex;align-items:center;justify-content:center;}
.faq-answer{margin-top:12px;color:var(--text-light);font-size:15px;padding-left:34px;}
.form-group{margin-bottom:20px;}
.form-label{display:block;font-size:14px;font-weight:600;color:var(--accent);margin-bottom:8px;}
.form-input,.form-select,.form-textarea{width:100%;border:1px solid var(--border);border-radius:10px;padding:12px 14px;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 32px;border:none;border-radius:999px;background:var(--primary);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:background .25s;}
.form-submit:hover{background:var(--primary-dark);}
.form-tip{margin-top:12px;font-size:13px;color:var(--text-light);}
.stat-item{text-align:center;}
.stat-number{font-size:32px;font-weight:800;color:var(--primary);}
.stat-label{margin-top:6px;font-size:14px;color:var(--text-light);}
.progress{height:8px;border-radius:999px;background:var(--bg-alt);overflow:hidden;}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),#ff8fa0);}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:220px;}
.bar-item{flex:1;display:flex;flex-direction:column;justify-content:flex-end;height:100%;text-align:center;}
.bar-fill{background:linear-gradient(180deg,#ff8fa0,var(--primary));border-radius:8px 8px 0 0;}
.bar-label{margin-top:8px;font-size:13px;color:var(--text-light);}
.badge{display:inline-block;font-size:12px;font-weight:600;color:var(--primary);background:var(--primary-light);border-radius:999px;padding:3px 12px;}
.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 12px 28px rgba(31,43,58,.14);}
.partner-logo{height:72px;display:flex;align-items:center;justify-content:center;border:1px dashed var(--border);border-radius:var(--radius);background:#fff;color:var(--text-light);font-size:14px;}
.step-list{display:grid;gap:20px;}
.step-item{display:flex;gap:16px;align-items:flex-start;}
.step-number{flex:0 0 auto;width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;}
.footer{background:var(--accent);color:rgba(255,255,255,.78);padding:56px 0 0;}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 20px 40px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-col{display:flex;flex-direction:column;gap:10px;}
.footer-title{color:#fff;font-size:16px;font-weight:700;margin-bottom:6px;}
.footer-link{color:rgba(255,255,255,.72);font-size:14px;transition:color .2s;}
.footer-link:hover{color:#ff8fa0;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px;text-align:center;font-size:13px;color:rgba(255,255,255,.6);}
.footer-info{font-size:14px;line-height:1.9;}
@media (max-width:1200px){
  .hero-title{font-size:38px;}
}
@media (max-width:992px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .footer-inner{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section-title{font-size:26px;}
  .nav-list{position:absolute;top:68px;left:0;width:100%;flex-direction:column;align-items:stretch;background:#fff;border-bottom:1px solid var(--border);padding:12px 20px;gap:4px;display:none;}
  .nav-list.open{display:flex;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .hero{padding:110px 0 60px;}
  .hero-title{font-size:30px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .footer-inner{grid-template-columns:1fr;}
}
@media (max-width:480px){
  .hero-title{font-size:26px;}
  .hero-stats{grid-template-columns:1fr;}
  .btn{width:100%;}
  .hero-actions .btn{width:100%;}
}