:root{
--primary:#2f9e6e;
--primary-dark:#1f7350;
--primary-light:#e3f6ec;
--accent:#8fd6b4;
--text:#22302b;
--text-light:#64756e;
--bg:#ffffff;
--bg-alt:#f5faf7;
--border:#e2ece6;
--shadow:0 4px 18px rgba(47,158,110,.10);
--radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,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{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 56px;}
.section-title{font-size:34px;color:var(--text);margin-bottom:16px;position:relative;}
.section-title::after{content:"";display:block;width:52px;height:4px;border-radius:2px;background:var(--primary);margin:16px auto 0;}
.section-subtitle{color:var(--text-light);font-size:16.5px;}
.grid{display:grid;gap:26px;}
.grid-2{display:grid;gap:26px;grid-template-columns:repeat(2,1fr);}
.grid-3{display:grid;gap:26px;grid-template-columns:repeat(3,1fr);}
.grid-4{display:grid;gap:26px;grid-template-columns:repeat(4,1fr);}
.flex{display:flex;gap:16px;flex-wrap:wrap;align-items:center;}
.flex-between{display:flex;justify-content:space-between;align-items:center;gap:16px;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 12px 28px rgba(47,158,110,.16);}
.card-icon{width:52px;height:52px;border-radius:14px;background:var(--primary-light);color:var(--primary-dark);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{padding-top:4px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:999px;font-size:16px;font-weight:600;cursor:pointer;border:2px solid transparent;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{background:transparent;color:var(--primary-dark);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-light);}
.btn-sm{padding:8px 18px;font-size:14px;}
.nav{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);transition:box-shadow .3s;border-bottom:1px solid transparent;}
.nav.scrolled{box-shadow:0 4px 20px rgba(34,48,43,.10);border-bottom-color:var(--border);}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.nav-logo{font-size:22px;font-weight:800;color:var(--primary-dark);letter-spacing:.5px;display:flex;align-items:center;gap:8px;}
.nav-logo::before{content:"";width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));display:inline-block;}
.nav-list{display:flex;gap:30px;align-items:center;}
.nav-link{font-size:15.5px;color:var(--text);font-weight:500;position:relative;padding:4px 0;transition:color .2s;}
.nav-link:hover{color:var(--primary);}
.nav-link::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--primary);transition:width .25s;}
.nav-link:hover::after{width:100%;}
.nav-cta{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;background:none;border:none;font-size:26px;cursor:pointer;color:var(--primary-dark);line-height:1;}
.hero{padding:150px 0 90px;background:linear-gradient(170deg,var(--primary-light) 0%,var(--bg) 62%);position:relative;overflow:hidden;}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;text-align:center;}
.hero-title{font-size:52px;letter-spacing:1px;color:var(--text);margin-bottom:22px;}
.hero-title span{color:var(--primary);}
.hero-subtitle{font-size:18px;color:var(--text-light);max-width:720px;margin:0 auto 36px;}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:60px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;max-width:900px;margin:0 auto;}
.hero-stat{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px 14px;box-shadow:var(--shadow);}
.hero-stat-num{font-size:30px;font-weight:800;color:var(--primary-dark);display:block;margin-bottom:6px;}
.hero-stat-label{font-size:14px;color:var(--text-light);}
.timeline{position:relative;max-width:820px;margin:0 auto;padding-left:36px;}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:var(--border);}
.timeline-item{position:relative;margin-bottom:34px;}
.timeline-dot{position:absolute;left:-36px;top:6px;width:20px;height:20px;border-radius:50%;background:#fff;border:4px solid var(--primary);}
.timeline-content{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);}
.timeline-date{font-size:13px;font-weight:700;color:var(--primary-dark);margin-bottom:6px;display:block;}
.timeline-title{font-size:17px;margin-bottom:8px;}
.timeline-text{font-size:15px;color:var(--text-light);}
.news-list{display:flex;flex-direction:column;gap:24px;}
.news-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px 28px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;}
.news-item:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(47,158,110,.14);}
.news-title{font-size:19px;margin-bottom:10px;}
.news-meta{display:flex;gap:14px;align-items:center;margin-bottom:12px;font-size:13.5px;color:var(--text-light);}
.news-date{color:var(--text-light);}
.news-category{background:var(--primary-light);color:var(--primary-dark);padding:2px 12px;border-radius:999px;font-weight:600;}
.news-summary{color:var(--text-light);font-size:15px;}
.news-body{color:var(--text-light);font-size:15px;margin-top:10px;}
.news-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px;}
.tag{font-size:13px;padding:3px 12px;border-radius:999px;background:var(--bg-alt);color:var(--primary-dark);border:1px solid var(--border);}
.faq-list{display:flex;flex-direction:column;gap:16px;max-width:880px;margin:0 auto;}
.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;margin-bottom:10px;color:var(--text);}
.faq-answer{font-size:15px;color:var(--text-light);}
.form-group{margin-bottom:20px;}
.form-label{display:block;font-size:14.5px;font-weight:600;margin-bottom:8px;color:var(--text);}
.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;background:#fff;color:var(--text);transition:border-color .2s,box-shadow .2s;}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,158,110,.14);}
.form-textarea{min-height:130px;resize:vertical;}
.form-submit{display:inline-flex;align-items:center;justify-content:center;padding:13px 38px;border-radius:999px;background:var(--primary);color:#fff;font-size:16px;font-weight:600;border:none;cursor:pointer;transition:background .25s,transform .25s;}
.form-submit:hover{background:var(--primary-dark);transform:translateY(-2px);}
.form-tip{font-size:13px;color:var(--text-light);margin-top:10px;}
.stat-item{text-align:center;padding:26px 14px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);}
.stat-number{display:block;font-size:32px;font-weight:800;color:var(--primary-dark);}
.stat-label{font-size:14px;color:var(--text-light);}
.progress{height:10px;border-radius:999px;background:var(--bg-alt);overflow:hidden;margin:10px 0 18px;}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent));}
.bar-chart{display:flex;align-items:flex-end;gap:22px;height:220px;padding:20px 10px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);}
.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;gap:8px;}
.bar-fill{width:100%;border-radius:8px 8px 0 0;background:linear-gradient(180deg,var(--accent),var(--primary));}
.bar-label{font-size:13px;color:var(--text-light);}
.badge{display:inline-block;font-size:13px;font-weight:600;padding:4px 14px;border-radius:999px;background:var(--primary-light);color:var(--primary-dark);}
.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,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(47,158,110,.15);}
.partner-logo{display:flex;align-items:center;justify-content:center;height:86px;border:1px dashed var(--border);border-radius:var(--radius);background:var(--bg-alt);color:var(--text-light);font-size:14px;font-weight:600;letter-spacing:.5px;}
.step-list{display:grid;gap:24px;grid-template-columns:repeat(4,1fr);}
.step-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow);position:relative;}
.step-number{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;font-weight:800;font-size:17px;margin-bottom:14px;}
.footer{background:#173229;color:#cfe3d9;padding:64px 0 26px;}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;max-width:1200px;margin:0 auto;padding:0 20px;}
.footer-col{font-size:14.5px;}
.footer-title{font-size:16px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-link{display:block;color:#a9c6b9;margin-bottom:10px;transition:color .2s;}
.footer-link:hover{color:#8fd6b4;}
.footer-bottom{max-width:1200px;margin:44px auto 0;padding:22px 20px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#8ba79a;text-align:center;line-height:1.9;}
.footer-info{font-size:14px;color:#a9c6b9;line-height:2;}
.footer-info a{color:#8fd6b4;}
.about-grid{display:grid;gap:26px;grid-template-columns:repeat(2,1fr);}
.keyword-box{background:linear-gradient(135deg,var(--primary-light),#fff);border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);margin-bottom:30px;}
.keyword-box h3{font-size:20px;margin-bottom:12px;color:var(--primary-dark);}
.keyword-box p{color:var(--text-light);font-size:15.5px;margin-bottom:10px;}
@media (max-width:1200px){
.hero-title{font-size:46px;}
}
@media (max-width:992px){
.section{padding:64px 0;}
.grid-4{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(2,1fr);}
.hero-stats{grid-template-columns:repeat(2,1fr);}
.hero-title{font-size:40px;}
.footer-inner{grid-template-columns:1fr 1fr;}
.step-list{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:768px){
.nav-list{position:fixed;top:72px;left:0;width:100%;flex-direction:column;background:#fff;padding:20px;gap:6px;box-shadow:0 14px 24px rgba(34,48,43,.12);display:none;align-items:flex-start;}
.nav-list.open{display:flex;}
.nav-link{display:block;padding:10px 0;width:100%;border-bottom:1px solid var(--border);}
.nav-toggle{display:block;}
.nav-cta{display:none;}
.hero{padding:120px 0 64px;}
.hero-title{font-size:32px;}
.hero-subtitle{font-size:16px;}
.grid-2,.grid-3,.grid-4,.about-grid{grid-template-columns:1fr;}
.section-title{font-size:27px;}
.hero-actions{flex-direction:column;align-items:stretch;}
.hero-actions .btn{width:100%;}
.section-header{margin-bottom:40px;}
}
@media (max-width:480px){
.container{padding:0 16px;}
.section{padding:48px 0;}
.hero-title{font-size:26px;}
.hero-stats{grid-template-columns:1fr;}
.step-list{grid-template-columns:1fr;}
.footer-inner{grid-template-columns:1fr;}
.card{padding:22px;}
.hero{padding:110px 0 52px;}
}