:root{
  --primary:#3b5bdb;
  --primary-dark:#2b45b0;
  --primary-light:#e7ecfd;
  --accent:#f2733f;
  --text:#1f2430;
  --text-light:#5b6474;
  --bg:#ffffff;
  --bg-alt:#f6f7fb;
  --border:#e3e6ef;
  --shadow:0 4px 18px rgba(31,36,48,.08);
  --radius:14px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);}
a{text-decoration:none;color:inherit;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
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:1.35;font-weight:700;letter-spacing:.5px;}
.section-subtitle{margin-top:14px;color:var(--text-light);font-size:16px;}
.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;align-items:center;justify-content:space-between;}
.card{background:#fff;border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;border:1px solid var(--border);}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(31,36,48,.12);}
.card-icon{width:52px;height:52px;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;font-weight:600;margin-bottom:10px;}
.card-text{color:var(--text-light);font-size:15px;}
.card-body{margin-top:14px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:background .25s,color .25s,border-color .25s,transform .25s;line-height:1.2;}
.btn-primary{background:var(--primary);color:#fff;}
.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);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:box-shadow .3s,border-color .3s;}
.nav.scrolled{box-shadow:0 2px 16px rgba(31,36,48,.1);border-bottom-color:var(--border);}
.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:19px;font-weight:700;color:var(--primary);display:flex;align-items:center;gap:8px;white-space:nowrap;}
.nav-list{display:flex;align-items:center;gap:26px;}
.nav-link{font-size:15px;color:var(--text-light);position:relative;padding:4px 0;transition:color .25s;}
.nav-link:hover{color:var(--primary);}
.nav-toggle{display:none;background:transparent;border:1px solid var(--border);border-radius:10px;width:42px;height:42px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;}
.nav-cta{display:inline-flex;}
.hero{padding:150px 0 90px;background:linear-gradient(160deg,#eef1fd 0%,#ffffff 62%);}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.hero-title{font-size:44px;line-height:1.28;font-weight:800;letter-spacing:.5px;}
.hero-subtitle{margin-top:20px;font-size:17px;color:var(--text-light);max-width:560px;}
.hero-actions{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap;}
.hero-stats{margin-top:44px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.hero-stat{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px;}
.hero-stat-num{font-size:26px;font-weight:800;color:var(--primary);}
.hero-stat-label{margin-top:6px;font-size:13px;color:var(--text-light);}
.timeline{position:relative;padding-left:26px;border-left:2px solid var(--border);}
.timeline-item{position:relative;padding:0 0 32px 20px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-dot{position:absolute;left:-33px;top:5px;width:12px;height:12px;border-radius:50%;background:var(--primary);border:2px 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;}
.timeline-date{font-size:13px;color:var(--accent);font-weight:600;}
.timeline-title{margin-top:6px;font-size:17px;font-weight:600;}
.timeline-text{margin-top:8px;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;font-weight:600;}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:8px;font-size:13px;color:var(--text-light);}
.news-category{background:var(--primary-light);color:var(--primary);padding:2px 10px;border-radius:999px;font-size:12px;}
.news-date{font-size:13px;color:var(--text-light);}
.news-summary{margin-top:12px;font-size:15px;color:var(--text-light);}
.news-body{margin-top:12px;font-size:15px;color:var(--text-light);}
.news-tags{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap;}
.tag{display:inline-block;padding:3px 12px;border:1px solid var(--border);border-radius:999px;font-size:12px;color:var(--text-light);background:#fff;}
.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 26px;box-shadow:var(--shadow);}
.faq-question{font-size:17px;font-weight:600;display:flex;gap:10px;}
.faq-answer{margin-top:10px;font-size:15px;color:var(--text-light);line-height:1.75;}
.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 .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{margin-top:10px;font-size:13px;color:var(--text-light);}
.stat-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center;}
.stat-number{font-size:30px;font-weight:800;color:var(--primary);}
.stat-label{margin-top:6px;font-size:14px;color:var(--text-light);}
.progress{height:10px;background:var(--primary-light);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 8px;}
.bar-item{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;gap:10px;}
.bar-fill{width:100%;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);}
.badge{display:inline-block;padding:3px 10px;border-radius:6px;background:var(--accent);color:#fff;font-size:12px;font-weight:600;}
.customer-card,.case-card,.honor-card,.review-card,.benefit-card,.region-card,.support-card,.partner-logo{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,.partner-logo:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(31,36,48,.12);}
.partner-logo{display:flex;align-items:center;justify-content:center;min-height:96px;font-size:14px;color:var(--text-light);}
.step-list{display:grid;gap:20px;}
.step-item{display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);}
.step-number{flex:0 0 42px;height:42px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;}
.footer{background:#1b2130;color:#c8cdd8;padding:60px 0 0;}
.footer-inner{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-col{font-size:14px;line-height:2;}
.footer-title{font-size:16px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-link{display:block;color:#c8cdd8;font-size:14px;line-height:2;transition:color .25s;}
.footer-link:hover{color:#fff;}
.footer-info{font-size:14px;line-height:2;}
.footer-bottom{margin-top:44px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:13px;color:#9aa2b1;text-align:center;}
@media (max-width:1199px){
  .hero-title{font-size:38px;}
  .grid-4{grid-template-columns:repeat(3,1fr);}
  .footer-inner{grid-template-columns:1.4fr 1fr 1fr;}
}
@media (max-width:992px){
  .nav-list{display:none;}
  .nav-toggle{display:flex;}
  .nav-list.open{display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;background:#fff;padding:18px 20px;gap:14px;box-shadow:0 12px 24px rgba(31,36,48,.12);}
  .nav-cta{display:none;}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding-top:20px;}
  .hero{padding:130px 0 70px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .footer-inner{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .section{padding:60px 0;}
  .section-title{font-size:26px;}
  .hero-title{font-size:30px;}
  .hero-subtitle{font-size:16px;}
  .hero-stats{grid-template-columns:1fr 1fr;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .bar-chart{height:180px;gap:10px;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .hero{padding:118px 0 56px;}
  .hero-title{font-size:25px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr;}
  .footer-inner{grid-template-columns:1fr;}
  .card{padding:22px;}
}