:root{
  --primary:#e8552f;
  --primary-dark:#c23f1e;
  --primary-light:#fdeae4;
  --accent:#1f7a6b;
  --text:#242424;
  --text-light:#6b6b6b;
  --bg:#ffffff;
  --bg-alt:#f7f4f1;
  --border:#e8e2dc;
  --shadow:0 4px 18px rgba(36,36,36,.08);
  --radius:12px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",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;}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
ul,ol{list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
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:780px;margin:0 auto 48px;}
.section-title{font-size:clamp(24px,3vw,34px);color:var(--text);letter-spacing:.5px;}
.section-title::after{content:"";display:block;width:56px;height:4px;border-radius:2px;background:var(--primary);margin:16px auto 0;}
.section-subtitle{margin-top:16px;color:var(--text-light);font-size:16px;}
.grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));}
.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;align-items:center;gap:16px;flex-wrap:wrap;}
.flex-between{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.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 10px 28px rgba(36,36,36,.14);}
.card-icon{width:52px;height:52px;border-radius:14px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;margin-bottom:18px;}
.card-title{font-size:19px;margin-bottom:10px;color:var(--text);}
.card-text{color:var(--text-light);font-size:15px;}
.card-body{margin-top:12px;}
.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:all .25s;border:1.5px solid transparent;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(232,85,47,.28);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent;}
.btn-outline:hover{background:var(--primary-light);}
.btn-sm{padding:8px 18px;font-size:14px;}
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:box-shadow .3s,border-color .3s;}
.nav.scrolled{box-shadow:0 4px 16px rgba(36,36,36,.1);border-bottom-color:var(--border);}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--primary);letter-spacing:.5px;white-space:nowrap;}
.nav-logo::before{content:"黄";display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;font-size:18px;}
.nav-list{display:flex;align-items:center;gap:6px;}
.nav-link{display:block;padding:8px 14px;font-size:15px;color:var(--text);border-radius:8px;transition:color .2s,background .2s;}
.nav-link:hover{color:var(--primary);background:var(--primary-light);}
.nav-cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;align-items:center;justify-content:center;flex-direction:column;gap:5px;}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s;}
.hero{position:relative;padding:150px 0 90px;background:linear-gradient(160deg,#fff6f2 0%,#fdf0e8 45%,#f7f4f1 100%);overflow:hidden;}
.hero::before{content:"";position:absolute;top:-120px;right:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(232,85,47,.14),transparent 70%);pointer-events:none;}
.hero::after{content:"";position:absolute;bottom:-160px;left:-120px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(31,122,107,.1),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:clamp(30px,4.6vw,52px);letter-spacing:1px;max-width:860px;color:#1c1c1c;}
.hero-title em{font-style:normal;color:var(--primary);}
.hero-subtitle{margin-top:22px;max-width:720px;font-size:clamp(15px,1.6vw,18px);color:var(--text-light);}
.hero-actions{margin-top:34px;display:flex;gap:16px;flex-wrap:wrap;}
.hero-stats{margin-top:56px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:900px;}
.hero-stat{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow);}
.hero-stat-num{font-size:28px;font-weight:800;color:var(--primary);line-height:1.2;}
.hero-stat-label{margin-top:6px;font-size:14px;color:var(--text-light);}
.timeline{position:relative;max-width:820px;margin:0 auto;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--border);}
.timeline-item{position:relative;padding-bottom:32px;}
.timeline-dot{position:absolute;left:-28px;top:6px;width:16px;height:16px;border-radius:50%;background:var(--primary);border:3px solid #fff;box-shadow:0 0 0 3px 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);font-weight:700;letter-spacing:.5px;}
.timeline-title{font-size:17px;margin:6px 0 8px;}
.timeline-text{color:var(--text-light);font-size:15px;}
.news-list{display:flex;flex-direction:column;gap:20px;}
.news-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px 28px;box-shadow:var(--shadow);transition:transform .3s;}
.news-item:hover{transform:translateY(-3px);}
.news-title{font-size:18px;margin-bottom:8px;}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-light);flex-wrap:wrap;}
.news-date{color:var(--text-light);}
.news-category{background:var(--primary-light);color:var(--primary);padding:2px 10px;border-radius:999px;font-weight:600;}
.news-summary{margin-top:10px;color:var(--text-light);font-size:15px;}
.news-body{margin-top:8px;color:var(--text-light);font-size:15px;}
.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);color:var(--text-light);font-size:13px;}
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:16px;}
.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:700;color:var(--text);display:flex;gap:10px;}
.faq-question::before{content:"问";flex:0 0 auto;width:24px;height:24px;border-radius:8px;background:var(--primary-light);color:var(--primary);font-size:13px;display:inline-flex;align-items:center;justify-content:center;font-weight:700;}
.faq-answer{margin-top:12px;padding-left:34px;color:var(--text-light);font-size:15px;}
.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;font-size:15px;font-family:inherit;border:1px solid var(--border);border-radius:10px;background:#fff;color:var(--text);outline:none;transition:border-color .2s,box-shadow .2s;}
.form-input:focus,.form-select:focus,.form-textarea:focus{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 36px;border-radius:999px;background:var(--primary);color:#fff;font-weight:600;font-size:15px;transition:background .25s,transform .25s;}
.form-submit:hover{background:var(--primary-dark);transform:translateY(-2px);}
.form-tip{margin-top:10px;font-size:13px;color:var(--text-light);}
.stat-item{text-align:center;padding:24px 16px;}
.stat-number{font-size:32px;font-weight:800;color:var(--primary);line-height:1.2;}
.stat-label{margin-top:6px;font-size:14px;color:var(--text-light);}
.progress{height:10px;border-radius:999px;background:var(--border);overflow:hidden;}
.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:200px;padding:12px 0;}
.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;gap:8px;}
.bar-fill{width:100%;max-width:46px;border-radius:8px 8px 0 0;background:linear-gradient(180deg,var(--primary),var(--primary-dark));}
.bar-label{font-size:13px;color:var(--text-light);}
.badge{display:inline-block;padding:3px 12px;border-radius:999px;background:var(--primary);color:#fff;font-size:12px;font-weight:600;letter-spacing:.5px;}
.customer-card,.case-card,.honor-card,.benefit-card,.region-card,.support-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:transform .3s;}
.customer-card:hover,.case-card:hover,.honor-card:hover,.benefit-card:hover,.region-card:hover,.support-card:hover{transform:translateY(-4px);}
.partner-logo{display:flex;align-items:center;justify-content:center;height:76px;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);}
.step-list{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));}
.step-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.step-number{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:14px;}
.footer{background:#1e1b1a;color:#cfc8c2;padding:64px 0 0;}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;}
.footer-col{min-width:0;}
.footer-title{font-size:16px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-link{display:block;color:#cfc8c2;font-size:14px;padding:5px 0;transition:color .2s;}
.footer-link:hover{color:var(--primary);}
.footer-info{font-size:14px;line-height:2;color:#b8b0a9;word-break:break-all;}
.footer-bottom{max-width:1200px;margin:48px auto 0;padding:22px 20px;border-top:1px solid #353030;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#9a938d;}
@media (max-width:1200px){
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .footer-inner{grid-template-columns:1fr 1fr;}
}
@media (max-width:992px){
  .section{padding:64px 0;}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .nav-list{display:none;}
  .nav-toggle{display:flex;}
  .nav-list.open{display:flex;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;padding:12px 20px 20px;gap:4px;box-shadow:0 12px 24px rgba(36,36,36,.12);border-bottom:1px solid var(--border);}
}
@media (max-width:768px){
  .hero{padding:120px 0 64px;}
  .grid,.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:1fr 1fr;}
  .section-header{margin-bottom:36px;}
  .footer-inner{grid-template-columns:1fr;}
}
@media (max-width:480px){
  .hero-stats{grid-template-columns:1fr;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .nav-cta .btn{width:auto;}
}