:root{
  --primary:#c8102e;
  --primary-dark:#96001f;
  --primary-light:#fdecef;
  --accent:#1f2937;
  --text:#22262e;
  --text-light:#6b7280;
  --bg:#ffffff;
  --bg-alt:#f7f8fa;
  --border:#e5e7eb;
  --shadow:0 4px 18px rgba(20,25,40,.08);
  --radius:14px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
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;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.35;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 52px}
.section-title{font-size:32px;letter-spacing:.5px;position:relative;display:inline-block;padding-bottom:14px}
.section-title::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:56px;height:4px;border-radius:2px;background:var(--primary)}
.section-subtitle{margin-top:18px;color:var(--text-light);font-size:16px}

.grid{display:grid;gap:26px}
.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-wrap:wrap}
.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 30px rgba(20,25,40,.12)}
.card-icon{width:46px;height:46px;border-radius:12px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;margin-bottom:16px}
.card-title{font-size:19px;margin-bottom:10px}
.card-text{color:var(--text-light);font-size:15px}
.card-body{margin-top:8px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:999px;font-size:15px;font-weight:600;border:2px solid transparent;cursor:pointer;transition:all .25s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-sm{padding:8px 18px;font-size:14px}

.nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:box-shadow .3s,background .3s}
.nav.scrolled{box-shadow:0 6px 20px rgba(20,25,40,.1);background:#fff}
.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:21px;font-weight:800;letter-spacing:1px;color:var(--accent);display:flex;align-items:center;gap:8px}
.nav-logo span{color:var(--primary)}
.nav-list{display:flex;gap:26px;align-items:center}
.nav-link{font-size:15px;color:var(--text);position:relative;padding:4px 0;transition:color .25s}
.nav-link:hover{color:var(--primary)}
.nav-link::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--primary);transition:width .25s}
.nav-link:hover::after{width:100%}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--border);border-radius:10px;background:#fff;font-size:20px;color:var(--accent);cursor:pointer}
.nav-cta{display:flex;align-items:center;gap:10px}

.hero{padding:150px 0 80px;background:linear-gradient(160deg,#fff 0%,var(--primary-light) 100%);position:relative;overflow:hidden}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px}
.hero-title{font-size:46px;line-height:1.25;letter-spacing:1px;max-width:900px}
.hero-title em{font-style:normal;color:var(--primary)}
.hero-subtitle{margin-top:22px;font-size:18px;color:var(--text-light);max-width:760px}
.hero-actions{margin-top:34px;display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{margin-top:56px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px 24px}
.hero-stat{text-align:center}
.hero-stat-num{font-size:30px;font-weight:800;color:var(--primary);letter-spacing:.5px}
.hero-stat-label{margin-top:6px;font-size:14px;color:var(--text-light)}

.timeline{position:relative;padding-left:26px;border-left:2px solid var(--border)}
.timeline-item{position:relative;padding-bottom:30px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{position:absolute;left:-34px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--primary);border:3px 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;letter-spacing:.5px}
.timeline-title{font-size:17px;margin:6px 0 8px}
.timeline-text{font-size:14.5px;color:var(--text-light)}

.news-list{display:grid;gap:18px}
.news-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.news-item:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(20,25,40,.11)}
.news-title{font-size:18px;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);border-radius:999px;padding:2px 12px;font-weight:600}
.news-summary{font-size:14.5px;color:var(--text-light)}
.news-body{margin-top:10px;font-size:15px}
.news-tags{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap}
.tag{background:var(--bg-alt);border:1px solid var(--border);border-radius:999px;padding:3px 12px;font-size:12.5px;color:var(--text-light)}

.faq-list{display:grid;gap:14px;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:10px}
.faq-answer{font-size:15px;color:var(--text-light)}

.form-group{margin-bottom:18px}
.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;background:#fff;color:var(--text);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{margin-top:6px}
.form-tip{font-size:13px;color:var(--text-light);margin-top:10px}

.stat-item{text-align:center;padding:22px 14px}
.stat-number{font-size:30px;font-weight:800;color:var(--primary)}
.stat-label{font-size:14px;color:var(--text-light);margin-top:6px}
.progress{height:10px;border-radius:999px;background:var(--bg-alt);overflow:hidden;margin-top:10px}
.progress-fill{height:100%;background:var(--primary);border-radius:999px}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:220px;padding:16px 8px 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:44px;background:linear-gradient(180deg,var(--primary),var(--primary-dark));border-radius:8px 8px 0 0;min-height:6px}
.bar-label{font-size:13px;color:var(--text-light);margin-top:10px;text-align:center}

.badge{display:inline-block;background:var(--primary-light);color:var(--primary);font-size:12.5px;font-weight:600;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: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 30px rgba(20,25,40,.12)}
.partner-logo{height:70px;border:1px dashed var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:14px;background:#fff}
.step-list{display:grid;gap:18px}
.step-item{display:flex;gap:18px;align-items:flex-start}
.step-number{flex:0 0 40px;width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}

.footer{background:var(--accent);color:#cbd2dd;padding:60px 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:34px}
.footer-col{font-size:14.5px}
.footer-title{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px}
.footer-link{display:block;color:#cbd2dd;margin-bottom:10px;font-size:14.5px;transition:color .25s}
.footer-link:hover{color:#fff}
.footer-info{font-size:14.5px;color:#cbd2dd;line-height:2}
.footer-bottom{margin-top:46px;border-top:1px solid rgba(255,255,255,.14);padding:20px;text-align:center;font-size:13.5px;color:#9aa4b2}

@media (max-width:1200px){
  .hero-title{font-size:40px}
  .footer-inner{grid-template-columns:1.3fr 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)}
  .hero-title{font-size:34px}
  .section{padding:64px 0}
  .section-title{font-size:27px}
}
@media (max-width:768px){
  .nav-list{position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:10px 20px;border-bottom:1px solid var(--border);box-shadow:0 12px 24px rgba(20,25,40,.1);display:none}
  .nav-list.open{display:flex}
  .nav-link{display:block;padding:12px 0;width:100%;border-bottom:1px solid var(--border)}
  .nav-toggle{display:block}
  .nav-cta .btn{display:none}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .hero{padding:120px 0 60px}
  .hero-title{font-size:29px}
  .hero-subtitle{font-size:16px}
  .bar-chart{height:180px;gap:10px}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:480px){
  body{font-size:15px}
  .hero-stats{grid-template-columns:1fr;gap:14px;padding:22px 18px}
  .hero-actions .btn{width:100%}
  .card{padding:22px}
  .footer-inner{grid-template-columns:1fr}
  .section-title{font-size:23px}
}