:root{
  --primary:#2f5bd7;
  --primary-dark:#1f3f9c;
  --primary-light:#e8eefc;
  --accent:#ff7a45;
  --text:#1c2233;
  --text-light:#6b7286;
  --bg:#ffffff;
  --bg-alt:#f5f7fc;
  --border:#e2e6f0;
  --shadow:0 6px 24px rgba(28,34,51,.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,"Segoe UI",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:1.3;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:clamp(1.5rem,3vw,2.1rem);letter-spacing:.5px;}
.section-title::after{content:"";display:block;width:56px;height:4px;border-radius:2px;background:var(--accent);margin:16px auto 0;}
.section-subtitle{margin-top:16px;color:var(--text-light);font-size:1rem;}
.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:20px;align-items:center;flex-wrap:wrap;}
.flex-between{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.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(47,91,215,.14);}
.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:1.25rem;font-weight:700;margin-bottom:16px;}
.card-title{font-size:1.1rem;margin-bottom:10px;}
.card-text{color:var(--text-light);font-size:.95rem;}
.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:.95rem;font-weight:600;border:2px solid transparent;cursor:pointer;transition:background .25s,color .25s,border-color .25s,transform .25s;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);}
.btn-outline{border-color:rgba(255,255,255,.7);color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,.14);}
.btn-sm{padding:8px 18px;font-size:.85rem;}
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:box-shadow .3s,border-color .3s;}
.nav.scrolled{box-shadow:0 6px 20px rgba(28,34,51,.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:1.2rem;font-weight:800;color:var(--primary);display:flex;align-items:center;gap:8px;}
.nav-logo::before{content:"";width:12px;height:22px;border-radius:4px;background:linear-gradient(180deg,var(--primary),var(--accent));}
.nav-list{display:flex;gap:28px;align-items:center;}
.nav-link{font-size:.95rem;color:var(--text);position:relative;padding:4px 0;}
.nav-link::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--primary);transition:width .3s;}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:100%;}
.nav-toggle{display:none;background:none;border:1px solid var(--border);border-radius:8px;width:42px;height:42px;cursor:pointer;color:var(--text);font-size:1.1rem;}
.nav-cta{display:flex;align-items:center;gap:12px;}
.hero{position:relative;padding:160px 0 90px;background:linear-gradient(140deg,#1f3f9c 0%,#2f5bd7 55%,#4d78e8 100%);color:#fff;overflow:hidden;}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:rgba(255,255,255,.08);}
.hero-inner{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:0 20px;}
.hero-title{font-size:clamp(1.9rem,4.4vw,3rem);max-width:720px;letter-spacing:1px;}
.hero-subtitle{margin-top:20px;max-width:620px;font-size:1.05rem;color:rgba(255,255,255,.88);}
.hero-actions{margin-top:36px;display:flex;gap:16px;flex-wrap:wrap;}
.hero-stats{margin-top:56px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;border-top:1px solid rgba(255,255,255,.22);padding-top:32px;}
.hero-stat-num{font-size:1.7rem;font-weight:800;letter-spacing:.5px;}
.hero-stat-label{font-size:.85rem;color:rgba(255,255,255,.78);margin-top:4px;}
.timeline{position:relative;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--border);}
.timeline-item{position:relative;padding-bottom:28px;}
.timeline-dot{position:absolute;left:-28px;top:6px;width:18px;height:18px;border-radius:50%;background:#fff;border:3px solid var(--primary);}
.timeline-content{padding-left:6px;}
.timeline-date{font-size:.82rem;color:var(--accent);font-weight:700;letter-spacing:.5px;}
.timeline-title{font-size:1.05rem;margin:4px 0 6px;}
.timeline-text{color:var(--text-light);font-size:.92rem;}
.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:1.05rem;margin-bottom:8px;}
.news-meta{display:flex;gap:12px;align-items:center;font-size:.82rem;color:var(--text-light);margin-bottom:8px;}
.news-date{color:var(--text-light);}
.news-category{background:var(--primary-light);color:var(--primary);border-radius:999px;padding:2px 10px;font-weight:600;}
.news-summary{color:var(--text-light);font-size:.93rem;}
.news-body{margin-top:10px;color:var(--text-light);font-size:.93rem;}
.news-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;}
.tag{display:inline-block;padding:3px 12px;border-radius:999px;background:var(--bg-alt);border:1px solid var(--border);font-size:.78rem;color:var(--text-light);}
.faq-list{display:grid;gap:16px;max-width:900px;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:1.02rem;font-weight:700;margin-bottom:10px;color:var(--primary-dark);}
.faq-answer{color:var(--text-light);font-size:.94rem;}
.form-group{margin-bottom:20px;}
.form-label{display:block;font-size:.9rem;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:.95rem;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{width:100%;}
.form-tip{font-size:.82rem;color:var(--text-light);margin-top:10px;}
.stat-item{text-align:center;padding:24px 16px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);}
.stat-number{font-size:1.8rem;font-weight:800;color:var(--primary);}
.stat-label{font-size:.88rem;color:var(--text-light);margin-top:6px;}
.progress{height:10px;border-radius:999px;background:var(--bg-alt);overflow:hidden;border:1px solid var(--border);}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent));}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:220px;padding:16px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);}
.bar-item{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;gap:8px;}
.bar-fill{width:100%;border-radius:8px 8px 0 0;background:linear-gradient(180deg,var(--primary),var(--primary-dark));}
.bar-label{font-size:.78rem;color:var(--text-light);}
.badge{display:inline-block;padding:4px 12px;border-radius:999px;background:var(--accent);color:#fff;font-size:.75rem;font-weight:700;}
.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;}
.customer-card:hover,.case-card:hover,.honor-card:hover,.review-card:hover,.benefit-card:hover,.region-card:hover,.support-card:hover{transform:translateY(-4px);}
.partner-logo{height:72px;border:1px dashed var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:.85rem;background:#fff;}
.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 40px;width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;}
.footer{background:#131a2b;color:rgba(255,255,255,.78);padding:64px 0 24px;font-size:.92rem;}
.footer-inner{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;}
.footer-col{min-width:0;}
.footer-title{color:#fff;font-size:1rem;margin-bottom:16px;}
.footer-link{display:block;color:rgba(255,255,255,.72);padding:5px 0;transition:color .25s;}
.footer-link:hover{color:#fff;}
.footer-info{line-height:2;color:rgba(255,255,255,.72);}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.82rem;color:rgba(255,255,255,.6);}
#about .grid-2{align-items:start;}
@media (max-width:1200px){
  .container{padding:0 24px;}
}
@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);}
  .footer-inner{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:768px){
  .section{padding:60px 0;}
  .nav-list{position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:10px 20px 18px;border-bottom:1px solid var(--border);box-shadow:0 12px 24px rgba(28,34,51,.1);display:none;}
  .nav-list.active{display:flex;}
  .nav-list li{width:100%;border-bottom:1px solid var(--border);}
  .nav-list li:last-child{border-bottom:none;}
  .nav-link{display:block;padding:12px 0;}
  .nav-toggle{display:block;}
  .nav-cta .btn{display:none;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero{padding:130px 0 70px;}
}
@media (max-width:480px){
  .hero-stats{grid-template-columns:1fr;gap:16px;}
  .footer-inner{grid-template-columns:1fr;}
  .card{padding:22px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
}