:root{
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --primary-light:#dbeafe;
  --accent:#f97316;
  --text:#1f2937;
  --text-light:#6b7280;
  --bg:#ffffff;
  --bg-alt:#f5f7fb;
  --border:#e5e7eb;
  --shadow:0 4px 16px rgba(17,24,39,.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}
h1,h2,h3,h4{line-height:1.3;font-weight:700}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.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:2rem;color:var(--text);margin-bottom:14px}
.section-subtitle{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:16px;align-items:center}
.flex-between{display:flex;gap:16px;align-items:center;justify-content:space-between}
.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(17,24,39,.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:1.5rem;font-weight:700;margin-bottom:18px}
.card-title{font-size:1.15rem;margin-bottom:10px;color:var(--text)}
.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:1rem;font-weight:600;transition:all .25s;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px)}
.btn-outline{border:2px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:8px 18px;font-size:.875rem}
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);transition:box-shadow .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.scrolled{box-shadow:0 4px 20px rgba(17,24,39,.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:1.25rem;font-weight:800;color:var(--primary);letter-spacing:.5px;display:flex;align-items:center;gap:8px}
.nav-logo span{width:28px;height:28px;border-radius:8px;background:var(--primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:.9rem}
.nav-list{display:flex;gap:28px;align-items:center}
.nav-link{font-size:.95rem;color:var(--text);font-weight:500;transition:color .2s}
.nav-link:hover{color:var(--primary)}
.nav-toggle{display:none;font-size:1.5rem;color:var(--text);width:40px;height:40px;align-items:center;justify-content:center}
.nav-cta{display:inline-flex}
.hero{padding:150px 0 90px;background:linear-gradient(160deg,#eef4ff 0%,#f8fafc 60%,#ffffff 100%);position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;top:-120px;right:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(37,99,235,.14),transparent 70%);pointer-events:none}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
.hero-title{font-size:2.75rem;line-height:1.25;color:var(--text);max-width:820px;margin-bottom:20px}
.hero-title em{font-style:normal;color:var(--primary)}
.hero-subtitle{font-size:1.1rem;color:var(--text-light);max-width:680px;margin-bottom:32px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;border-top:1px solid var(--border);padding-top:36px;max-width:900px}
.hero-stat{text-align:left}
.hero-stat-num{font-size:1.85rem;font-weight:800;color:var(--primary);display:block}
.hero-stat-label{font-size:.9rem;color:var(--text-light)}
.timeline{position:relative;padding-left:32px;border-left:2px solid var(--border);max-width:820px;margin:0 auto}
.timeline-item{position:relative;padding-bottom:36px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{position:absolute;left:-41px;top:4px;width:16px;height:16px;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:22px;box-shadow:var(--shadow)}
.timeline-date{font-size:.85rem;color:var(--accent);font-weight:700;margin-bottom:6px;display:block}
.timeline-title{font-size:1.1rem;margin-bottom:8px}
.timeline-text{color:var(--text-light);font-size:.95rem}
.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,box-shadow .3s}
.news-item:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(17,24,39,.12)}
.news-title{font-size:1.15rem;margin-bottom:10px}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:10px;font-size:.85rem;color:var(--text-light)}
.news-date{color:var(--text-light)}
.news-category{background:var(--primary-light);color:var(--primary-dark);padding:2px 10px;border-radius:999px;font-size:.78rem;font-weight:600}
.news-summary{color:var(--text-light);font-size:.95rem}
.news-body{margin-top:12px;color:var(--text-light);font-size:.95rem}
.news-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{background:var(--bg-alt);border:1px solid var(--border);color:var(--text-light);font-size:.78rem;padding:3px 10px;border-radius:999px}
.faq-list{max-width:820px;margin:0 auto;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:1.05rem;font-weight:700;color:var(--text);display:flex;gap:10px;margin-bottom:10px}
.faq-question::before{content:"Q";color:var(--primary);font-weight:800}
.faq-answer{color:var(--text-light);font-size:.95rem;padding-left:26px}
.form-group{margin-bottom:20px}
.form-label{display:block;font-size:.9rem;font-weight:600;margin-bottom:8px;color:var(--text)}
.form-input,.form-select,.form-textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;font-size:.95rem;color:var(--text);background:#fff;transition:border-color .2s,box-shadow .2s;font-family:inherit}
.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:8px}
.form-tip{font-size:.82rem;color:var(--text-light);margin-top:10px}
.stat-item{text-align:center;padding:24px 12px}
.stat-number{font-size:2rem;font-weight:800;color:var(--primary);display:block}
.stat-label{font-size:.9rem;color:var(--text-light);margin-top:6px}
.progress{height:10px;background:var(--bg-alt);border-radius:999px;overflow:hidden}
.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:16px 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:56px;background:linear-gradient(180deg,var(--primary),var(--primary-dark));border-radius:8px 8px 0 0;transition:height .6s}
.bar-label{font-size:.82rem;color:var(--text-light);margin-top:10px}
.badge{display:inline-block;background:var(--accent);color:#fff;font-size:.75rem;font-weight:700;padding:3px 10px;border-radius:999px}
.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:28px;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(17,24,39,.12)}
.partner-logo{height:80px;background:var(--bg-alt);border:1px dashed var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:.85rem}
.step-list{display:grid;gap:20px;max-width:820px;margin:0 auto}
.step-item{display:flex;gap:20px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.step-number{flex:0 0 44px;width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.footer{background:#111827;color:#cbd5e1;padding:64px 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:36px}
.footer-col{min-width:0}
.footer-title{color:#fff;font-size:1rem;font-weight:700;margin-bottom:16px}
.footer-link{display:block;color:#cbd5e1;font-size:.9rem;padding:5px 0;transition:color .2s}
.footer-link:hover{color:#fff}
.footer-info{font-size:.9rem;color:#cbd5e1;line-height:1.9}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 20px;text-align:center;font-size:.85rem;color:#94a3b8}
@media (max-width:1199px){
  .hero-title{font-size:2.4rem}
  .footer-inner{grid-template-columns:1.4fr 1fr 1fr;}
}
@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)}
  .section{padding:64px 0}
}
@media (max-width:768px){
  .nav-list{position:fixed;top:62px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:12px 20px 20px;box-shadow:0 12px 24px rgba(17,24,39,.1);transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;border-bottom:1px solid var(--border)}
  .nav-list.open{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav-list li{width:100%}
  .nav-link{display:block;padding:12px 0;border-bottom:1px solid var(--border)}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .hero{padding:120px 0 64px}
  .hero-title{font-size:1.95rem}
  .hero-subtitle{font-size:1rem}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .section-title{font-size:1.6rem}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:480px){
  body{font-size:15px}
  .hero{padding:104px 0 56px}
  .hero-title{font-size:1.65rem}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-stats{grid-template-columns:1fr 1fr;gap:18px}
  .section{padding:52px 0}
  .card{padding:22px}
  .footer-inner{grid-template-columns:1fr}
  .step-item{flex-direction:column;gap:14px}
}