:root{
--primary:#1f8a5f;
--primary-dark:#146b48;
--primary-light:#e3f4ec;
--accent:#f0a020;
--text:#1d2b26;
--text-light:#5f7169;
--bg:#ffffff;
--bg-alt:#f4f8f6;
--border:#e0e8e4;
--shadow:0 6px 22px rgba(24,64,48,.08);
--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:1.75;font-size:16px;
-webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
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:32px;letter-spacing:.5px;margin-bottom:14px;}
.section-subtitle{color:var(--text-light);font-size:16px;}
.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);border:1px solid var(--border);transition:transform .3s,box-shadow .3s;}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(24,64,48,.14);}
.card-icon{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:12px;background:var(--primary-light);color:var(--primary-dark);font-size:22px;font-weight:700;margin-bottom:18px;}
.card-title{font-size:19px;margin-bottom:10px;}
.card-text{color:var(--text-light);font-size:15px;}
.card-body{margin-top:14px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:999px;font-size:15px;font-weight:600;border:2px solid transparent;cursor:pointer;transition:all .25s;white-space:nowrap;}
.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-light);}
.btn-sm{padding:8px 18px;font-size:14px;}
.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(24,64,48,.12);}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;height:70px;display:flex;align-items:center;justify-content:space-between;}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:800;color:var(--primary-dark);letter-spacing:1px;}
.nav-logo::before{content:"蛙";display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;font-size:17px;}
.nav-list{display:flex;align-items:center;gap:28px;}
.nav-link{font-size:15px;color:var(--text);font-weight:500;padding:6px 0;position:relative;transition:color .2s;}
.nav-link:hover{color:var(--primary);}
.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:1px solid var(--border);border-radius:10px;background:#fff;cursor:pointer;color:var(--primary-dark);font-size:20px;line-height:1;}
.nav-cta{display:inline-flex;padding:9px 20px;border-radius:999px;background:var(--primary);color:#fff;font-size:14px;font-weight:600;transition:background .2s;}
.nav-cta:hover{background:var(--primary-dark);}
.hero{padding:140px 0 90px;background:linear-gradient(160deg,#eef8f2 0%,#ffffff 55%,#f5f2e8 100%);position:relative;overflow:hidden;}
.hero::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(31,138,95,.12),transparent 70%);top:-120px;right:-100px;}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}
.hero-title{font-size:46px;letter-spacing:1px;margin-bottom:20px;color:var(--text);}
.hero-title strong{color:var(--primary);}
.hero-subtitle{font-size:18px;color:var(--text-light);max-width:680px;margin-bottom:34px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:54px;}
.hero-stats{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 18px;text-align:center;box-shadow:var(--shadow);}
.hero-stat-num{font-size:28px;font-weight:800;color:var(--primary-dark);line-height:1.2;}
.hero-stat-num span{font-size:15px;font-weight:600;color:var(--text-light);margin-left:2px;}
.hero-stat-label{font-size:13px;color:var(--text-light);margin-top:6px;}
.timeline{position:relative;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:28px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-dot{position:absolute;left:-28px;top:6px;width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--primary);}
.timeline-content{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px 22px;box-shadow:var(--shadow);}
.timeline-date{font-size:13px;color:var(--primary-dark);font-weight:600;letter-spacing:.5px;}
.timeline-title{font-size:17px;margin:6px 0 8px;}
.timeline-text{font-size:14px;color:var(--text-light);}
.news-list{display:grid;gap:18px;}
.news-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;}
.news-item:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(24,64,48,.12);}
.news-title{font-size:18px;margin-bottom:8px;}
.news-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text-light);margin-bottom:10px;}
.news-date{font-variant-numeric:tabular-nums;}
.news-category{display:inline-block;padding:2px 10px;border-radius:999px;background:var(--primary-light);color:var(--primary-dark);font-weight:600;}
.news-summary{font-size:14px;color:var(--text-light);}
.news-body{margin-top:12px;font-size:15px;color:var(--text);}
.news-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.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{display:grid;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:16px;font-weight:700;margin-bottom:8px;color:var(--text);}
.faq-answer{font-size:14px;color:var(--text-light);}
.form-group{margin-bottom:18px;}
.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;font-family:inherit;color:var(--text);background:#fff;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 var(--primary-light);}
.form-textarea{min-height:130px;resize:vertical;}
.form-submit{margin-top:6px;}
.form-tip{font-size:13px;color:var(--text-light);margin-top:10px;}
.stat-item{text-align:center;padding:18px 12px;}
.stat-number{font-size:32px;font-weight:800;color:var(--primary-dark);line-height:1.2;}
.stat-label{font-size:14px;color:var(--text-light);margin-top:6px;}
.progress{width:100%;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;}
.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;}
.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);margin-top:8px;}
.badge{display:inline-block;padding:3px 11px;border-radius:999px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;letter-spacing:.5px;}
.customer-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);}
.case-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.honor-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;text-align:center;box-shadow:var(--shadow);}
.partner-logo{display:flex;align-items:center;justify-content:center;height:80px;border:1px dashed var(--border);border-radius:var(--radius);background:#fff;color:var(--text-light);font-size:14px;}
.review-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.benefit-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.step-list{display:grid;gap:18px;}
.step-item{display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);}
.step-number{flex:0 0 auto;width:42px;height:42px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;}
.region-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);}
.support-card{background:var(--primary-light);border:1px solid #cfe9dd;border-radius:var(--radius);padding:26px;}
.footer{background:#10241c;color:#c8d8d1;padding:64px 0 0;}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 20px 48px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;}
.footer-col{}
.footer-title{font-size:16px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-link{display:block;font-size:14px;color:#c8d8d1;margin-bottom:10px;transition:color .2s;}
.footer-link:hover{color:var(--accent);}
.footer-info{font-size:14px;color:#c8d8d1;line-height:1.9;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px;text-align:center;font-size:13px;color:#9db5ab;max-width:1200px;margin:0 auto;}
@media (max-width:1200px){
.hero-title{font-size:40px;}
}
@media (max-width:992px){
.grid-4{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(2,1fr);}
.hero{padding:120px 0 70px;}
.hero-title{font-size:34px;}
.hero-stats{grid-template-columns:repeat(2,1fr);}
.footer-inner{grid-template-columns:1fr 1fr;}
.nav-list{gap:18px;}
}
@media (max-width:768px){
.section{padding:60px 0;}
.section-title{font-size:26px;}
.nav-toggle{display:block;}
.nav-list{position:absolute;top:70px;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;border-bottom:1px solid var(--border);box-shadow:var(--shadow);padding:12px 20px 20px;gap:4px;display:none;}
.nav-list.open{display:flex;}
.nav-link{padding:11px 0;border-bottom:1px solid var(--border);}
.nav-cta{display:none;}
.hero-title{font-size:29px;}
.hero-subtitle{font-size:16px;}
.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
.hero-stats{grid-template-columns:1fr 1fr;}
.bar-chart{gap:10px;}
}
@media (max-width:480px){
.container{padding:0 16px;}
.hero{padding:104px 0 60px;}
.hero-title{font-size:25px;}
.hero-actions{flex-direction:column;align-items:stretch;}
.hero-actions .btn{width:100%;}
.hero-stats{grid-template-columns:1fr;}
.card{padding:22px;}
.section-title{font-size:23px;}
.footer-inner{grid-template-columns:1fr;gap:28px;}
}