:root{
  --primary:#1f7a4d;
  --primary-dark:#155c39;
  --primary-light:#e6f3ec;
  --accent:#f0a500;
  --text:#22282c;
  --text-light:#6a737b;
  --bg:#ffffff;
  --bg-alt:#f5f8f6;
  --border:#e2e8e4;
  --shadow:0 6px 20px rgba(24,60,42,.08);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box;}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
h1,h2,h3,h4{line-height:1.35;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(22px,2.6vw,32px);color:var(--text);margin-bottom:14px;letter-spacing:.5px;}
.section-title::after{content:"";display:block;width:52px;height:4px;border-radius:2px;background:var(--primary);margin:14px auto 0;}
.section-subtitle{color:var(--text-light);font-size:15.5px;}

.grid{display:grid;gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.flex{display:flex;align-items:center;gap:16px;}
.flex-between{display:flex;align-items:center;justify-content:space-between;gap:16px;}

.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(24,60,42,.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:22px;font-weight:700;margin-bottom:16px;}
.card-title{font-size:18px;margin-bottom:10px;color:var(--text);}
.card-text{color:var(--text-light);font-size:14.5px;}
.card-body{margin-top:10px;}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:999px;font-size:15.5px;font-weight:600;transition:all .25s;line-height:1;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(31,122,77,.28);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);}
.btn-outline{border:1.5px solid var(--primary);color:var(--primary);background:transparent;}
.btn-outline:hover{background:var(--primary-light);}
.btn-sm{padding:9px 20px;font-size:14px;}

.nav{position:fixed;top:0;left:0;right:0;z-index:999;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);transition:box-shadow .3s;border-bottom:1px solid transparent;}
.nav.scrolled{box-shadow:0 4px 20px rgba(24,60,42,.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;}
.nav-logo{font-size:20px;font-weight:800;color:var(--primary);letter-spacing:1px;display:flex;align-items:center;gap:8px;}
.nav-logo::before{content:"";width:12px;height:12px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px var(--primary-light);}
.nav-list{display:flex;align-items:center;gap:30px;}
.nav-link{font-size:15px;color:var(--text);transition:color .2s;position:relative;}
.nav-link:hover{color:var(--primary);}
.nav-toggle{display:none;font-size:24px;color:var(--text);}
.nav-cta{padding:9px 22px;border-radius:999px;background:var(--primary);color:#fff;font-size:14.5px;font-weight:600;}

.hero{padding:150px 0 80px;background:linear-gradient(160deg,var(--primary-light) 0%,#ffffff 60%);position:relative;overflow:hidden;}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;text-align:center;}
.hero-title{font-size:clamp(28px,4.4vw,48px);color:var(--primary-dark);margin-bottom:20px;letter-spacing:1px;}
.hero-subtitle{font-size:clamp(15px,1.7vw,18px);color:var(--text-light);max-width:720px;margin:0 auto 34px;}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:56px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:900px;margin:0 auto;}
.hero-stat{background:#fff;border-radius:var(--radius);padding:22px 14px;box-shadow:var(--shadow);border:1px solid var(--border);}
.hero-stat-num{font-size:26px;font-weight:800;color:var(--primary);display:block;}
.hero-stat-label{font-size:13.5px;color:var(--text-light);}

.timeline{position:relative;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:6px;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:14px;height:14px;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:18px 20px;box-shadow:var(--shadow);}
.timeline-date{font-size:13px;color:var(--primary);font-weight:600;margin-bottom:6px;}
.timeline-title{font-size:16.5px;margin-bottom:6px;}
.timeline-text{font-size:14px;color:var(--text-light);}

.news-list{display:flex;flex-direction:column;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;margin-bottom:8px;}
.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);padding:2px 12px;border-radius:999px;font-size:12.5px;}
.news-summary{font-size:14.5px;color:var(--text-light);}
.news-body{margin-top:12px;font-size:14.5px;color:var(--text-light);}
.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:12.5px;padding:3px 12px;border-radius:999px;}

.faq-list{display:flex;flex-direction:column;gap:14px;max-width:860px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow);}
.faq-question{font-size:16.5px;font-weight:700;margin-bottom:8px;color:var(--primary-dark);}
.faq-answer{font-size:14.5px;color:var(--text-light);}

.form-group{margin-bottom:20px;}
.form-label{display:block;font-size:14.5px;font-weight:600;margin-bottom:8px;}
.form-input,.form-select,.form-textarea{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:10px;font-size:15px;font-family:inherit;color:var(--text);background:#fff;transition:border-color .2s;}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary);}
.form-textarea{min-height:130px;resize:vertical;}
.form-submit{width:100%;padding:14px;border-radius:10px;background:var(--primary);color:#fff;font-size:16px;font-weight:700;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;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px 16px;box-shadow:var(--shadow);}
.stat-number{font-size:28px;font-weight:800;color:var(--primary);display:block;}
.stat-label{font-size:14px;color:var(--text-light);margin-top:6px;}
.progress{height:10px;background:var(--bg-alt);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:20px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);}
.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;}
.bar-fill{width:100%;background:linear-gradient(180deg,var(--primary),var(--primary-light));border-radius:8px 8px 0 0;min-height:8px;}
.bar-label{font-size:12.5px;color:var(--text-light);margin-top:10px;}

.badge{display:inline-block;padding:4px 12px;border-radius:999px;background:var(--primary-light);color:var(--primary);font-size:12.5px;font-weight:600;}
.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:26px;box-shadow:var(--shadow);transition:transform .3s;}
.customer-card:hover,.case-card:hover,.honor-card:hover{transform:translateY(-4px);}
.partner-logo{height:70px;display:flex;align-items:center;justify-content:center;background:var(--bg-alt);border:1px dashed var(--border);border-radius:10px;color:var(--text-light);font-size:13.5px;}

.step-list{display:flex;flex-direction:column;gap:18px;}
.step-item{display:flex;gap:16px;align-items:flex-start;}
.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:700;}

.footer{background:#14261d;color:#c8d6cd;padding:64px 0 24px;}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:36px;max-width:1200px;margin:0 auto;padding:0 20px 40px;}
.footer-col{display:flex;flex-direction:column;gap:10px;}
.footer-title{color:#fff;font-size:16px;margin-bottom:6px;}
.footer-link{color:#9fb3a7;font-size:14px;transition:color .2s;}
.footer-link:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;text-align:center;font-size:13.5px;color:#8ba296;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
.footer-info{font-size:14px;color:#9fb3a7;line-height:1.9;}

@media (max-width:1200px){
  .grid-4{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:992px){
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .footer-inner{grid-template-columns:1fr 1fr;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .nav-list{position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:12px 20px;box-shadow:var(--shadow);display:none;}
  .nav-list.active{display:flex;}
  .nav-list .nav-link{padding:12px 0;width:100%;border-bottom:1px solid var(--border);}
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero{padding:120px 0 60px;}
  .footer-inner{grid-template-columns:1fr;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .hero-stats{grid-template-columns:1fr;}
  .hero-actions{flex-direction:column;}
  .btn{width:100%;}
}