*{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;
background:linear-gradient(180deg,#0f172a 0%,#0a1020 45%,#020617 100%);
color:#cbd5e1;
line-height:1.85;
font-size:16px;
-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,span,a,li,div,td,th,strong,em,blockquote{
font-family:"Segoe UI","Helvetica Neue",Arial,"Microsoft YaHei","微软雅黑","PingFang SC",sans-serif;
}
a{color:#22d3ee;text-decoration:none}
a:hover{color:#67e8f9}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
header.site-header{
position:sticky;top:0;z-index:99;
background:rgba(2,6,23,.88);
backdrop-filter:blur(12px);
border-bottom:1px solid #1e293b;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 20px;max-width:1180px;margin:0 auto;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#f8fafc;letter-spacing:.5px}
.logo span.dot{width:10px;height:10px;border-radius:50%;background:#22d3ee;box-shadow:0 0 14px #22d3ee;display:inline-block}
.nav-links{display:flex;flex-wrap:wrap;gap:6px 20px;align-items:center}
.nav-links a{color:#94a3b8;font-size:15px;padding:4px 2px;border-bottom:2px solid transparent;transition:.25s}
.nav-links a:hover{color:#22d3ee;border-bottom-color:#22d3ee}
section{padding:62px 0}
.sec-title{font-size:26px;color:#f1f5f9;font-weight:700;letter-spacing:.5px;margin-bottom:10px}
.sec-title::after{content:"";display:block;width:52px;height:3px;background:linear-gradient(90deg,#22d3ee,#0ea5e9);margin-top:12px;border-radius:2px}
.sec-desc{color:#94a3b8;margin-bottom:34px;font-size:15px;max-width:820px}
/* hero */
#hero{padding:74px 0 64px;position:relative;overflow:hidden}
#hero::before{
content:"";position:absolute;top:-180px;right:-140px;width:520px;height:520px;border-radius:50%;
background:radial-gradient(circle,rgba(34,211,238,.18),transparent 68%);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center}
h1{font-size:34px;line-height:1.45;color:#f8fafc;font-weight:800;letter-spacing:.5px;margin-bottom:20px}
h1 em{font-style:normal;color:#22d3ee}
.hero-sub{color:#94a3b8;font-size:16px;margin-bottom:26px}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 28px;border-radius:8px;font-size:15px;font-weight:600;transition:.25s;border:1px solid transparent}
.btn-main{background:linear-gradient(135deg,#22d3ee,#0ea5e9);color:#02202b}
.btn-main:hover{color:#02202b;box-shadow:0 0 26px rgba(34,211,238,.45);transform:translateY(-2px)}
.btn-ghost{border-color:#334155;color:#cbd5e1}
.btn-ghost:hover{border-color:#22d3ee;color:#22d3ee}
.hero-img{border-radius:16px;overflow:hidden;border:1px solid #1e293b;box-shadow:0 24px 60px rgba(2,6,23,.8)}
.hero-img img{display:block;width:100%;height:auto}
/* geo */
#geo-intro{background:linear-gradient(180deg,rgba(15,23,42,.65),rgba(2,6,23,0))}
.geo-box{
border:1px solid #1e293b;border-left:3px solid #22d3ee;border-radius:12px;
background:rgba(15,23,42,.72);padding:30px 32px;color:#b6c2d1;font-size:15.5px;
}
.geo-box p+p{margin-top:16px}
/* stats */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}
.stat-card{
background:rgba(15,23,42,.7);border:1px solid #1e293b;border-radius:14px;padding:26px 22px;text-align:center;transition:.28s;
}
.stat-card:hover{border-color:#22d3ee;transform:translateY(-4px);box-shadow:0 14px 34px rgba(34,211,238,.12)}
.stat-card .num{font-size:30px;font-weight:800;color:#22d3ee;letter-spacing:1px}
.stat-card .lbl{color:#94a3b8;font-size:14px;margin-top:6px}
/* advantages */
.adv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.adv-card{
background:rgba(15,23,42,.66);border:1px solid #1e293b;border-radius:14px;padding:26px;transition:.28s;
}
.adv-card:hover{border-color:#0ea5e9;background:rgba(15,23,42,.95)}
.adv-card .ico{font-size:24px;margin-bottom:12px;display:block}
.adv-card h3{font-size:17px;color:#e2e8f0;margin-bottom:10px;font-weight:700}
.adv-card p{color:#94a3b8;font-size:14.5px}
/* story */
.story-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:center}
.story-img{border-radius:16px;overflow:hidden;border:1px solid #1e293b}
.story-img img{display:block;width:100%;height:auto}
.story-text p{color:#a8b6c6;font-size:15.5px;margin-bottom:16px}
/* events */
.event-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:22px}
.event-card{
border:1px solid #1e293b;border-radius:14px;overflow:hidden;background:rgba(15,23,42,.72);transition:.28s;
}
.event-card:hover{border-color:#22d3ee;transform:translateY(-4px)}
.event-card img{width:100%;height:170px;object-fit:cover;display:block;filter:brightness(.85)}
.event-body{padding:20px 22px 24px}
.event-body h3{font-size:17px;color:#e2e8f0;margin-bottom:8px}
.event-body p{font-size:14.5px;color:#94a3b8}
.tag{display:inline-block;font-size:12px;padding:3px 10px;border-radius:20px;background:rgba(34,211,238,.14);color:#22d3ee;margin-bottom:10px;letter-spacing:.5px}
/* news */
.news-list{display:grid;gap:22px}
.news-item{
border:1px solid #1e293b;border-radius:14px;padding:26px 28px;
background:rgba(15,23,42,.66);transition:.28s;
}
.news-item:hover{border-color:#0ea5e9;background:rgba(15,23,42,.95)}
.news-item h3{font-size:18px;color:#e2e8f0;margin-bottom:10px;font-weight:700}
.news-item .date{display:inline-block;font-size:12.5px;color:#22d3ee;border:1px solid rgba(34,211,238,.35);border-radius:20px;padding:2px 12px;margin-bottom:12px}
.news-item p{font-size:14.8px;color:#94a3b8}
/* rankings */
.rank-table{width:100%;border-collapse:collapse;font-size:14.5px;overflow:hidden;border-radius:14px}
.rank-table th{background:rgba(34,211,238,.1);color:#22d3ee;text-align:left;padding:14px 18px;font-weight:600;border-bottom:1px solid #1e293b}
.rank-table td{padding:14px 18px;color:#b6c2d1;border-bottom:1px solid #16233a}
.rank-table tr:hover td{background:rgba(34,211,238,.05)}
.rank-no{color:#22d3ee;font-weight:700}
/* faq */
.faq-list{display:grid;gap:16px}
.faq-item{border:1px solid #1e293b;border-radius:12px;background:rgba(15,23,42,.66);overflow:hidden}
.faq-item h3{font-size:16px;color:#e2e8f0;padding:20px 24px;font-weight:700;border-bottom:1px solid #16233a;background:rgba(34,211,238,.05)}
.faq-item h3::before{content:"Q";display:inline-block;width:24px;height:24px;line-height:24px;text-align:center;border-radius:6px;background:rgba(34,211,238,.16);color:#22d3ee;font-size:13px;margin-right:10px;font-weight:700}
.faq-item p{padding:18px 24px 22px;color:#94a3b8;font-size:14.8px}
/* cta */
#cta{padding-bottom:80px}
.cta-box{
border:1px solid #1e293b;border-radius:18px;padding:48px 40px;text-align:center;
background:radial-gradient(circle at 50% 0%,rgba(34,211,238,.14),rgba(15,23,42,.9) 62%);
}
.cta-box h2{font-size:24px;color:#f1f5f9;margin-bottom:14px}
.cta-box p{color:#94a3b8;max-width:720px;margin:0 auto 26px;font-size:15px}
/* footer */
footer{border-top:1px solid #1e293b;background:rgba(2,6,23,.9);padding:44px 0 30px;font-size:14px;color:#8494a8}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;margin-bottom:30px}
footer h4{color:#e2e8f0;font-size:15px;margin-bottom:14px;font-weight:700}
footer ul{list-style:none}
footer ul li{margin-bottom:9px;color:#8494a8}
footer a{color:#94a3b8}
footer a:hover{color:#22d3ee}
.footer-bottom{border-top:1px solid #16233a;padding-top:20px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:#64748b;font-size:13.5px}
@media(max-width:880px){
.hero-grid,.story-grid{grid-template-columns:1fr}
h1{font-size:26px}
.footer-grid{grid-template-columns:1fr}
section{padding:48px 0}
}