:root{
  --primary:#1f5f8b;
  --primary-dark:#154766;
  --primary-light:#e8f1f7;
  --accent:#c98a3c;
  --text:#1f2933;
  --text-light:#5c6b78;
  --bg:#ffffff;
  --bg-alt:#f4f7f9;
  --border:#e0e6ec;
  --shadow:0 4px 18px rgba(21,71,102,.08);
  --radius:12px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
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;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul,ol{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;line-height:1.3;color:var(--primary-dark);position:relative;margin-bottom:14px;letter-spacing:.5px}
.section-title::after{content:"";display:block;width:56px;height:3px;background:var(--accent);margin:16px auto 0;border-radius:2px}
.section-subtitle{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;align-items:center;gap:16px}
.flex-between{display:flex;align-items:center;justify-content:space-between;gap:16px}
.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 12px 28px rgba(21,71,102,.14)}
.card-icon{width:52px;height:52px;display:flex;align-items:center;justify-content:center;border-radius:10px;background:var(--primary-light);color:var(--primary);font-size:24px;font-weight:700;margin-bottom:18px}
.card-title{font-size:19px;color:var(--primary-dark);margin-bottom:10px}
.card-text{color:var(--text-light);font-size:15px}
.card-body{margin-top:12px}
.btn{display:inline-block;padding:13px 30px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .25s,color .25s,border-color .25s,transform .25s;text-align:center}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px)}
.btn-outline{border-color:#fff;color:#fff;background:transparent}
.btn-outline:hover{background:#fff;color:var(--primary-dark);transform:translateY(-2px)}
.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,.94);backdrop-filter:blur(8px);transition:box-shadow .3s}
.nav.scrolled{box-shadow:0 4px 16px rgba(21,71,102,.12)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:68px}
.nav-logo{font-size:21px;font-weight:700;color:var(--primary-dark);letter-spacing:1px;display:flex;align-items:center;gap:8px}
.nav-logo span{color:var(--accent)}
.nav-list{display:flex;align-items:center;gap:28px}
.nav-link{font-size:15px;color:var(--text);position:relative;padding:6px 0;transition:color .25s}
.nav-link:hover{color:var(--primary)}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);transition:width .3s}
.nav-link:hover::after{width:100%}
.nav-cta{display:inline-block;padding:9px 22px;border-radius:999px;background:var(--primary);color:#fff;font-size:14px;font-weight:600;transition:background .25s}
.nav-cta:hover{background:var(--primary-dark)}
.nav-toggle{display:none;width:40px;height:40px;border:none;background:none;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.nav-toggle span{width:24px;height:2px;background:var(--primary-dark);border-radius:2px}
.hero{position:relative;padding:150px 0 100px;background:linear-gradient(135deg,#154766 0%,#1f5f8b 55%,#2c7ba8 100%);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:rgba(201,138,60,.18);top:-160px;right:-140px}
.hero::after{content:"";position:absolute;width:340px;height:340px;border-radius:50%;background:rgba(255,255,255,.06);bottom:-120px;left:-90px}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:2;text-align:center}
.hero-title{font-size:46px;line-height:1.25;letter-spacing:1px;margin-bottom:20px}
.hero-subtitle{font-size:18px;max-width:760px;margin:0 auto 36px;color:rgba(255,255,255,.88)}
.hero-actions{display:flex;justify-content:center;gap:18px;flex-wrap:wrap;margin-bottom:56px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:900px;margin:0 auto}
.hero-stat{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);padding:22px 12px}
.hero-stat-num{font-size:30px;font-weight:700;color:#fff;display:block}
.hero-stat-label{font-size:14px;color:rgba(255,255,255,.78)}
.timeline{position:relative;padding-left:32px;border-left:2px solid var(--border)}
.timeline-item{position:relative;padding-bottom:32px}
.timeline-dot{position:absolute;left:-41px;top:4px;width:16px;height:16px;border-radius:50%;background:var(--accent);border:3px solid #fff;box-shadow:0 0 0 2px var(--accent)}
.timeline-content{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px 22px;box-shadow:var(--shadow)}
.timeline-date{font-size:13px;color:var(--accent);font-weight:600;letter-spacing:1px}
.timeline-title{font-size:17px;color:var(--primary-dark);margin:6px 0}
.timeline-text{font-size:14px;color:var(--text-light)}
.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(-3px)}
.news-title{font-size:18px;color:var(--primary-dark);margin-bottom:8px}
.news-meta{display:flex;gap:14px;align-items:center;margin-bottom:10px;font-size:13px}
.news-date{color:var(--text-light)}
.news-category{background:var(--primary-light);color:var(--primary);padding:2px 10px;border-radius:999px;font-size:12px}
.news-summary{font-size:14px;color:var(--text-light)}
.news-body{margin-top:12px;font-size:14px;color:var(--text-light)}
.news-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{display:inline-block;padding:3px 12px;border-radius:999px;background:var(--bg-alt);color:var(--text-light);font-size:12px;border:1px solid var(--border)}
.faq-list{display:grid;gap:16px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.faq-question{font-size:17px;color:var(--primary-dark);font-weight:600;margin-bottom:8px}
.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;color:var(--primary-dark)}
.form-input,.form-select,.form-textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:8px;font-size:15px;font-family:inherit;color:var(--text);background:#fff;transition:border-color .25s}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary)}
.form-textarea{min-height:130px;resize:vertical}
.form-submit{width:100%;padding:14px;border:none;border-radius:8px;background:var(--primary);color:#fff;font-size:16px;font-weight:600;cursor:pointer;transition:background .25s}
.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:20px}
.stat-number{font-size:34px;font-weight:700;color:var(--primary);display:block}
.stat-label{font-size:14px;color:var(--text-light)}
.progress{height:10px;background:var(--border);border-radius:999px;overflow:hidden;margin-top:10px}
.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:220px;padding:0 10px}
.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:6px 6px 0 0;min-height:6px}
.bar-label{font-size:13px;color:var(--text-light);margin-top:8px;text-align:center}
.badge{display:inline-block;padding:4px 12px;border-radius:999px;background:var(--accent);color:#fff;font-size:12px;font-weight:600}
.customer-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.case-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:transform .3s}
.case-card:hover{transform:translateY(-4px)}
.honor-card{background:var(--primary-light);border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center}
.partner-logo{display:flex;align-items:center;justify-content:center;height:90px;border:1px dashed var(--border);border-radius:var(--radius);color:var(--text-light);font-size:14px;background:#fff}
.review-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.benefit-card{background:#fff;border-left:4px solid var(--accent);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.step-list{display:grid;gap:22px}
.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;font-size:18px;font-weight:700;display:flex;align-items:center;justify-content:center}
.region-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;text-align:center;box-shadow:var(--shadow)}
.support-card{background:var(--primary-light);border-radius:var(--radius);padding:24px;border:1px solid var(--border)}
.footer{background:#123a52;color:rgba(255,255,255,.78);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:36px}
.footer-col h4{}
.footer-title{font-size:16px;color:#fff;margin-bottom:18px;font-weight:600}
.footer-link{display:block;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:10px;transition:color .25s}
.footer-link:hover{color:var(--accent)}
.footer-info{font-size:14px;line-height:2;color:rgba(255,255,255,.72)}
.footer-bottom{max-width:1200px;margin:44px auto 0;padding:20px 20px;border-top:1px solid rgba(255,255,255,.14);font-size:13px;color:rgba(255,255,255,.6);text-align:center}
@media (max-width:1200px){
  .hero-title{font-size:40px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:992px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:repeat(2,1fr)}
  .hero{padding:130px 0 80px}
  .section{padding:64px 0}
}
@media (max-width:768px){
  .nav-toggle{display:flex}
  .nav-list{position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:12px 20px 20px;box-shadow:0 12px 24px rgba(21,71,102,.12);display:none}
  .nav-list.active{display:flex}
  .nav-link{width:100%;padding:12px 0;border-bottom:1px solid var(--border)}
  .nav-cta{display:none}
  .hero-title{font-size:32px}
  .hero-subtitle{font-size:16px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:14px}
  .hero-actions{flex-direction:column;align-items:stretch;max-width:320px;margin-left:auto;margin-right:auto}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .section-title{font-size:26px}
  .bar-chart{height:180px;gap:12px}
}
@media (max-width:480px){
  .hero{padding:110px 0 64px}
  .hero-title{font-size:27px}
  .hero-stat-num{font-size:24px}
  .hero-stats{grid-template-columns:1fr}
  .card{padding:22px}
  .footer-inner{grid-template-columns:1fr}
  .section{padding:52px 0}
}