:root{
  --primary:#f4762b;
  --primary-dark:#c9500f;
  --primary-light:#ffe9db;
  --accent:#2b7ef4;
  --text:#22262b;
  --text-light:#5d6670;
  --bg:#ffffff;
  --bg-alt:#faf7f4;
  --border:#e6e1dc;
  --shadow:0 6px 20px rgba(34,38,43,.08);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  color:var(--text);background:var(--bg);line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
img,svg{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.3;font-weight:700}
button{font-family:inherit;cursor:pointer;border: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:32px;color:var(--text);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:16px;font-size:16px;color:var(--text-light)}

.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);transition:transform .3s,box-shadow .3s;border:1px solid var(--border)}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(34,38,43,.12)}
.card-icon{width:52px;height:52px;border-radius:12px;background:var(--primary-light);color:var(--primary-dark);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;color:var(--text)}
.card-text{font-size:15px;color:var(--text-light)}
.card-body{font-size:15px;color:var(--text-light)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:999px;font-size:15px;font-weight:600;transition:background .25s,color .25s,border-color .25s,transform .25s;border:2px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{background:transparent;color:var(--primary-dark);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-sm{padding:8px 18px;font-size:13px}

.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);transition:box-shadow .3s}
.nav.scrolled{box-shadow:0 4px 18px rgba(34,38,43,.1)}
.nav-inner{max-width:1200px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--primary-dark);letter-spacing:.5px}
.nav-logo::before{content:"";width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--primary),#ffb347);display:inline-block}
.nav-list{display:flex;align-items:center;gap:28px}
.nav-link{font-size:15px;color:var(--text-light);font-weight:500;position:relative;padding:6px 0;transition:color .25s}
.nav-link:hover{color:var(--primary-dark)}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;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-radius:10px;background:var(--bg-alt);color:var(--text);font-size:20px;line-height:1}
.nav-cta{display:inline-flex}

.hero{padding:150px 0 90px;background:linear-gradient(160deg,#fff6ef 0%,#ffffff 55%,#f2f7ff 100%);position:relative;overflow:hidden}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;text-align:center}
.hero-title{font-size:48px;font-weight:800;letter-spacing:1px;color:var(--text)}
.hero-title span{color:var(--primary)}
.hero-subtitle{max-width:720px;margin:22px auto 0;font-size:18px;color:var(--text-light)}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:36px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:64px;padding:30px 20px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border)}
.hero-stat{text-align:center}
.hero-stat-num{font-size:30px;font-weight:800;color:var(--primary-dark);line-height:1.2}
.hero-stat-label{font-size:14px;color:var(--text-light);margin-top:6px}

.timeline{position:relative;padding-left:32px}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:var(--border)}
.timeline-item{position:relative;margin-bottom:28px}
.timeline-dot{position:absolute;left:-32px;top:6px;width:18px;height:18px;border-radius:50%;background:var(--primary);border:4px solid var(--primary-light)}
.timeline-content{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow)}
.timeline-date{font-size:13px;color:var(--primary-dark);font-weight:600}
.timeline-title{font-size:17px;margin:6px 0 8px}
.timeline-text{font-size:15px;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,box-shadow .3s}
.news-item:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(34,38,43,.1)}
.news-title{font-size:18px;margin-bottom:10px}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-light);margin-bottom:10px}
.news-date{color:var(--text-light)}
.news-category{background:var(--primary-light);color:var(--primary-dark);padding:2px 10px;border-radius:999px;font-weight:600}
.news-summary{font-size:15px;color:var(--text-light)}
.news-body{font-size:15px;color:var(--text-light);margin-top:10px}
.news-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{font-size:12px;padding:4px 12px;border-radius:999px;background:var(--bg-alt);color:var(--text-light);border:1px solid var(--border)}

.faq-list{display:grid;gap:14px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow)}
.faq-question{font-size:16px;font-weight:700;color:var(--text)}
.faq-answer{font-size:15px;color:var(--text-light);margin-top:10px}

.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;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{display:inline-flex;align-items:center;justify-content:center;padding:13px 34px;border-radius:999px;background:var(--primary);color:#fff;font-size:15px;font-weight:600;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 10px}
.stat-number{font-size:32px;font-weight:800;color:var(--primary-dark)}
.stat-label{font-size:14px;color:var(--text-light);margin-top:6px}
.progress{height:10px;border-radius:999px;background:var(--primary-light);overflow:hidden}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),#ffb347)}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:220px;padding-top:10px}
.bar-item{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:8px;height:100%}
.bar-fill{width:100%;border-radius:8px 8px 0 0;background:linear-gradient(180deg,#ffb347,var(--primary));min-height:8px}
.bar-label{font-size:13px;color:var(--text-light)}

.badge{display:inline-block;font-size:12px;padding:4px 12px;border-radius:999px;background:var(--primary-light);color:var(--primary-dark);font-weight:600}
.customer-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .3s}
.customer-card:hover{transform:translateY(-4px)}
.case-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.honor-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center;box-shadow:var(--shadow)}
.partner-logo{height:70px;border:1px dashed var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:14px;background:#fff}
.review-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.benefit-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.step-list{display:grid;gap:24px}
.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;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px}
.region-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.support-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}

.footer{background:#1f242b;color:#c9cfd6;padding:64px 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{min-width:0}
.footer-title{font-size:16px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-link{display:block;font-size:14px;color:#a8b0b9;margin-bottom:10px;transition:color .25s}
.footer-link:hover{color:var(--primary)}
.footer-info{font-size:14px;color:#a8b0b9;line-height:1.9}
.footer-bottom{max-width:1200px;margin:44px auto 0;padding:22px 20px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#8b939c;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center}

@media (max-width:1199px){
  .hero-title{font-size:42px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:991px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .section{padding:64px 0}
  .hero{padding:130px 0 70px}
}
@media (max-width:768px){
  .nav-list{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:flex-start;
    background:#fff;padding:16px 20px;gap:6px;border-bottom:1px solid var(--border);
    box-shadow:var(--shadow);display:none;
  }
  .nav-list.nav-open{display:flex}
  .nav-link{display:block;width:100%;padding:10px 0}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-cta{display:none}
  .hero-title{font-size:32px}
  .hero-subtitle{font-size:16px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:14px}
  .section-title{font-size:26px}
  .footer-inner{grid-template-columns:1fr}
}
@media (max-width:480px){
  .hero{padding:112px 0 56px}
  .hero-title{font-size:26px}
  .hero-stats{grid-template-columns:1fr}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .card{padding:22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}