*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:"Segoe UI","Helvetica Neue",Arial,"Microsoft YaHei","微软雅黑","PingFang SC",sans-serif;color:#1f2937;background:#f8fafb;line-height:1.75;-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4,h5,h6,p,span,a,li,div,button,input,textarea,select,strong,em,b,small,td,th,label{font-family:"Segoe UI","Helvetica Neue",Arial,"Microsoft YaHei","微软雅黑","PingFang SC",sans-serif;}
a{text-decoration:none;color:inherit;}
img{max-width:100%;display:block;}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px;}
/* header */
header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid #e6f4f1;}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;max-width:1180px;margin:0 auto;padding:14px 20px;flex-wrap:wrap;}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:#0f766e;letter-spacing:.5px;}
.logo .dot{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,#14b8a6,#0f766e);display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;box-shadow:0 6px 16px rgba(20,184,166,.35);}
.nav-links{display:flex;gap:6px;flex-wrap:wrap;}
.nav-links a{padding:8px 14px;border-radius:10px;font-size:14.5px;font-weight:600;color:#33534f;transition:.25s;}
.nav-links a:hover{background:linear-gradient(135deg,#14b8a6,#0f766e);color:#fff;box-shadow:0 6px 16px rgba(20,184,166,.3);}
.nav-links a:first-child{color:#0f766e;}
/* hero */
#hero{background:linear-gradient(140deg,#e6fffb 0%,#f0fdfa 45%,#ffffff 100%);padding:64px 0 58px;position:relative;overflow:hidden;}
#hero:after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(20,184,166,.18),transparent 70%);top:-140px;right:-100px;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;position:relative;z-index:2;}
.hero-tag{display:inline-block;background:linear-gradient(135deg,#14b8a6,#0f766e);color:#fff;font-size:13px;font-weight:700;padding:6px 16px;border-radius:999px;margin-bottom:18px;box-shadow:0 8px 20px rgba(20,184,166,.28);}
h1{font-size:38px;line-height:1.3;font-weight:800;color:#0b3d38;letter-spacing:-.5px;}
h1 span{background:linear-gradient(135deg,#14b8a6,#0f766e);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.hero-btns{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap;}
.btn{padding:12px 26px;border-radius:12px;font-weight:700;font-size:15px;transition:.28s;display:inline-block;}
.btn-main{background:linear-gradient(135deg,#14b8a6,#0f766e);color:#fff;box-shadow:0 10px 24px rgba(20,184,166,.36);}
.btn-main:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(20,184,166,.46);}
.btn-ghost{background:#fff;color:#0f766e;border:1.5px solid #b7ece3;}
.btn-ghost:hover{background:#e6fffb;transform:translateY(-3px);}
.hero-img{border-radius:22px;overflow:hidden;box-shadow:0 22px 50px rgba(15,118,110,.22);}
/* geo */
#geo-intro{padding:56px 0 20px;}
.geo-box{background:#fff;border-radius:22px;padding:34px 36px;box-shadow:0 12px 34px rgba(15,118,110,.09);border-left:6px solid #14b8a6;}
.geo-box p{font-size:15.8px;color:#3f5b57;margin-bottom:14px;}
.geo-box p:last-child{margin-bottom:0;}
h2{font-size:27px;font-weight:800;color:#0b3d38;margin-bottom:10px;letter-spacing:-.3px;}
.sub{color:#5c7a76;font-size:15px;margin-bottom:30px;}
.section{padding:54px 0;}
/* stats */
#data-stats{background:linear-gradient(135deg,#0f766e,#14b8a6);color:#fff;padding:52px 0;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;text-align:center;}
.stat-item{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:18px;padding:24px 14px;transition:.3s;}
.stat-item:hover{background:rgba(255,255,255,.2);transform:translateY(-5px);}
.stat-num{font-size:32px;font-weight:800;letter-spacing:-.5px;}
.stat-label{font-size:14px;opacity:.9;margin-top:4px;}
/* advantage cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{background:#fff;border-radius:18px;padding:28px 26px;box-shadow:0 8px 26px rgba(15,118,110,.08);transition:.3s;border:1px solid #eaf7f4;}
.card:hover{transform:translateY(-6px);box-shadow:0 18px 38px rgba(15,118,110,.16);border-color:#b7ece3;}
.card .ico{width:52px;height:52px;border-radius:15px;background:linear-gradient(135deg,#e6fffb,#ccfbf1);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px;}
.card h3{font-size:18px;font-weight:800;color:#0f4f49;margin-bottom:8px;}
.card p{font-size:14.6px;color:#5c7a76;}
/* brand story */
#brand-story{background:#fff;}
.story-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center;}
.story-img{border-radius:20px;overflow:hidden;box-shadow:0 18px 40px rgba(15,118,110,.18);}
.story-grid p{color:#3f5b57;font-size:15.6px;margin-bottom:14px;}
/* timeline */
#timeline{background:linear-gradient(180deg,#f8fafb,#eefbf8);}
.tl{position:relative;padding-left:30px;}
.tl:before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:3px;background:linear-gradient(180deg,#14b8a6,#0f766e);border-radius:3px;}
.tl-item{position:relative;margin-bottom:26px;background:#fff;border-radius:16px;padding:20px 24px;box-shadow:0 8px 22px rgba(15,118,110,.08);}
.tl-item:before{content:"";position:absolute;left:-28px;top:26px;width:14px;height:14px;border-radius:50%;background:#14b8a6;border:3px solid #fff;box-shadow:0 0 0 3px rgba(20,184,166,.22);}
.tl-item h4{font-size:16.5px;color:#0f4f49;margin-bottom:6px;font-weight:800;}
.tl-item p{font-size:14.6px;color:#5c7a76;}
/* news */
#news-list{background:#fff;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{background:#fff;border:1px solid #eaf7f4;border-radius:18px;overflow:hidden;box-shadow:0 8px 24px rgba(15,118,110,.07);transition:.3s;display:flex;flex-direction:column;}
.news-card:hover{transform:translateY(-6px);box-shadow:0 18px 38px rgba(15,118,110,.15);border-color:#b7ece3;}
.news-top{padding:20px 22px 0;}
.news-date{display:inline-block;font-size:12.5px;font-weight:700;color:#0f766e;background:#e6fffb;padding:3px 11px;border-radius:999px;margin-bottom:10px;}
.news-card h3{font-size:16.5px;font-weight:800;color:#0f4f49;line-height:1.5;margin-bottom:8px;}
.news-card p{font-size:14.2px;color:#5c7a76;padding:0 22px 20px;}
.news-top h3{padding:0;}
/* featured events */
#featured-events{background:linear-gradient(180deg,#eefbf8,#f8fafb);}
.event-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.event-card{background:#fff;border-radius:18px;padding:24px;box-shadow:0 8px 24px rgba(15,118,110,.08);display:flex;gap:18px;align-items:center;border:1px solid #eaf7f4;transition:.3s;}
.event-card:hover{transform:translateY(-5px);box-shadow:0 16px 34px rgba(15,118,110,.16);}
.event-card .eico{width:58px;height:58px;border-radius:16px;background:linear-gradient(135deg,#14b8a6,#0f766e);display:flex;align-items:center;justify-content:center;font-size:26px;flex:none;}
.event-card h4{font-size:16.5px;color:#0f4f49;margin-bottom:4px;}
.event-card p{font-size:14px;color:#5c7a76;}
/* download */
#download{background:#fff;}
.dl-box{background:linear-gradient(135deg,#0f766e,#14b8a6);border-radius:24px;padding:44px 40px;color:#fff;display:grid;grid-template-columns:1.2fr .8fr;gap:34px;align-items:center;box-shadow:0 20px 44px rgba(15,118,110,.28);}
.dl-box h2{color:#fff;}
.dl-box p{opacity:.94;font-size:15.4px;margin-bottom:20px;}
.dl-list{list-style:none;display:grid;gap:8px;margin-bottom:22px;}
.dl-list li{font-size:14.6px;opacity:.95;}
.btn-white{background:#fff;color:#0f766e;font-weight:800;box-shadow:0 10px 24px rgba(0,0,0,.14);}
.btn-white:hover{transform:translateY(-3px);}
.dl-img{border-radius:18px;overflow:hidden;box-shadow:0 14px 30px rgba(0,0,0,.22);}
/* faq */
#faq{background:linear-gradient(180deg,#f8fafb,#eefbf8);}
.faq-list{display:grid;gap:14px;max-width:920px;margin:0 auto;}
.faq-item{background:#fff;border-radius:16px;padding:22px 26px;box-shadow:0 8px 22px rgba(15,118,110,.07);border:1px solid #eaf7f4;transition:.25s;}
.faq-item:hover{border-color:#b7ece3;box-shadow:0 14px 30px rgba(15,118,110,.13);}
.faq-q{font-size:16px;font-weight:800;color:#0f4f49;display:flex;gap:10px;margin-bottom:10px;}
.faq-q .qi{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,#14b8a6,#0f766e);color:#fff;font-size:13px;display:flex;align-items:center;justify-content:center;flex:none;margin-top:1px;}
.faq-a{font-size:14.6px;color:#5c7a76;padding-left:36px;}
/* cta */
#cta{background:linear-gradient(135deg,#0f766e,#14b8a6);color:#fff;text-align:center;padding:58px 0;}
#cta h2{color:#fff;}
#cta p{opacity:.94;max-width:720px;margin:0 auto 24px;font-size:15.6px;}
/* footer */
footer{background:#08302c;color:#c7dcda;padding:48px 0 0;font-size:14.4px;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;padding-bottom:36px;}
footer h4{color:#fff;font-size:16px;margin-bottom:14px;font-weight:800;}
footer p{font-size:14px;line-height:1.9;color:#a8c6c3;}
footer ul{list-style:none;display:grid;gap:9px;}
footer ul a{color:#a8c6c3;transition:.2s;}
footer ul a:hover{color:#5eead4;}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;text-align:center;font-size:13.4px;color:#8fb3b0;}
.foot-bottom a{color:#5eead4;}
@media(max-width:900px){
  .hero-grid,.story-grid,.dl-box{grid-template-columns:1fr;}
  .cards,.news-grid{grid-template-columns:1fr 1fr;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .event-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  h1{font-size:29px;}
}
@media(max-width:600px){
  .cards,.news-grid{grid-template-columns:1fr;}
  h1{font-size:25px;}
  h2{font-size:22px;}
  .geo-box{padding:26px 22px;}
}