:root{--ink:#0e1624;--blue:#1f5bff;--bg:#f4f6f9;--text:#1c2433;--muted:#5d6879;--line:#dfe4ec;
--sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;--mono:ui-monospace,"SF Mono",Consolas,monospace}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:64px}
body{font-family:var(--sans);color:var(--text);background:#fff;line-height:1.8;font-size:16px}
img{display:block;max-width:100%}ul,ol{list-style:none}a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.wrap{max-width:1240px;margin:0 auto;padding:0 28px}

.site-header{position:fixed;inset:0 0 auto 0;z-index:30;height:64px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 32px;color:#fff;transition:background .3s}
.site-header.solid{background:rgba(14,22,36,.96)}
.logo{grid-column:2;grid-row:1;display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:.08em}
.mark{display:grid;place-items:center;width:30px;height:30px;background:var(--blue);border-radius:6px;font-size:16px;letter-spacing:0}
.navs{display:contents}
.nav-l,.nav-r{grid-row:1;display:flex;gap:30px;font-size:15px;align-items:center}
.nav-l{grid-column:1}.nav-r{grid-column:3;justify-content:flex-end}
.nav-l a:not(.cta),.nav-r a:not(.cta){padding:4px 0;border-bottom:2px solid transparent}
.nav-l a:not(.cta):hover,.nav-r a:not(.cta):hover{border-color:var(--blue)}
.cta{background:var(--blue);padding:6px 22px;border-radius:4px;font-weight:600}
.cta:hover{background:#4a7bff}
.menu-btn{display:none;grid-column:3;justify-self:end;background:none;border:1px solid rgba(255,255,255,.55);color:#fff;border-radius:4px;padding:3px 14px;font:inherit;cursor:pointer}

.hero{position:relative;min-height:100vh;display:flex;justify-content:center;text-align:center;color:#fff;background:var(--ink);overflow:hidden}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center bottom}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,16,28,.9) 0%,rgba(10,16,28,.55) 38%,rgba(10,16,28,0) 72%)}
.hero-text{position:relative;z-index:1;padding:150px 28px 0;max-width:980px}
.hero h1{font-size:clamp(36px,6vw,80px);font-weight:800;line-height:1.15;letter-spacing:.02em;animation:up .8s ease both}
.hero h1 em{font-style:normal;color:#6f9bff}
.hero p{margin:20px auto 34px;font-size:clamp(16px,1.6vw,20px);color:#d3dcec;max-width:34em;animation:up .8s .12s ease both}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;animation:up .8s .24s ease both;margin:30px;}
.btn{display:inline-block;min-width:160px;padding:20px 44px;font-weight:700;border-radius:4px;border:2px solid var(--blue);transition:background .2s,transform .2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:#4a7bff;border-color:#4a7bff}
.btn-ghost{border-color:#fff;color:#fff}.btn-ghost:hover{background:#fff;color:var(--ink)}
@keyframes up{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}

.section{padding:96px 0}
.label{font-family:var(--mono);font-size:14px;color:var(--blue);letter-spacing:.1em}
h2.t{font-size:clamp(28px,3.4vw,42px);font-weight:800;color:var(--ink);line-height:1.25;margin-top:4px}
.sub{color:var(--muted);margin-top:8px}

.p-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:32px}
.arrows{display:flex;gap:10px}
.arrows button{width:48px;height:48px;border:1.5px solid var(--ink);background:#fff;font-size:20px;cursor:pointer;transition:background .2s,color .2s}
.arrows button:hover{background:var(--ink);color:#fff}
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:0 max(28px,calc((100vw - 1184px)/2)) 20px;scrollbar-width:thin}
.card{flex:0 0 min(360px,80vw);scroll-snap-align:start;cursor:zoom-in}
.card .pic{overflow:hidden;background:var(--ink);border-radius:6px}
.card img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s}
.card:hover img{transform:scale(1.05)}
.card b{display:block;margin-top:14px;font-size:19px;color:var(--ink)}
.card span{font-size:14px;color:var(--muted)}

.about{background:var(--bg)}
.about-grid{display:grid;grid-template-columns:7fr 5fr;gap:72px;align-items:start}
.about p{margin-bottom:16px;text-align:justify}
.tl{border-left:2px solid var(--line);padding-left:30px;display:flex;flex-direction:column;gap:26px;margin-top:8px}
.tl li{position:relative}
.tl li::before{content:"";position:absolute;left:-37px;top:9px;width:12px;height:12px;background:var(--blue);border-radius:2px;transform:rotate(45deg)}
.tl time{font-family:var(--mono);font-weight:700;color:var(--blue)}
.tl b{display:block;color:var(--ink);font-size:18px}.tl span{font-size:14px;color:var(--muted)}

.split{display:grid;grid-template-columns:280px 1fr;gap:56px;align-items:start}
.split .head{position:sticky;top:96px}
.row{display:grid;grid-template-columns:92px 1fr;gap:28px;padding:28px 0;border-bottom:1px solid var(--line)}
.row:first-child{padding-top:4px}
.row time{font-family:var(--mono);line-height:1}
.row time b{display:block;font-size:44px;color:var(--blue)}
.row time span{font-size:13px;color:var(--muted)}
.row h3{font-size:21px;color:var(--ink);line-height:1.5;margin-bottom:6px}
.row .sum{font-size:15px;color:var(--muted);text-align:justify}
.news-b{background:var(--bg)}

.contact{background:var(--ink);color:#c9d3e3;padding:92px 0 0}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;padding-bottom:72px}
.contact h2{font-size:clamp(34px,4.6vw,60px);font-weight:800;color:#fff;line-height:1.2;margin:6px 0 16px}
.contact .info div{display:grid;grid-template-columns:7em 1fr;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.14)}
.contact dt{color:#7fa4ff;font-family:var(--mono);font-size:14px}
.contact dd{color:#fff;font-size:18px}
.copy{border-top:1px solid rgba(255,255,255,.1);text-align:center;font-size:13px;color:#7d8aa0;padding:20px}

.lightbox{position:fixed;inset:0;z-index:60;background:rgba(6,10,18,.94);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:24px}
.lightbox[hidden]{display:none}
.lightbox img{max-height:80vh;max-width:min(92vw,1000px);border-radius:6px}
.lightbox p{color:#fff;font-weight:700}
.lightbox button{position:absolute;top:18px;right:22px;background:#fff;border:0;border-radius:4px;padding:6px 18px;font:inherit;font-weight:700;cursor:pointer}

@media(max-width:1000px){.about-grid,.split,.contact-grid{grid-template-columns:1fr;gap:36px}.split .head{position:static}}
@media(max-width:820px){
 .site-header{display:flex;justify-content:space-between;padding:0 18px}.menu-btn{display:block}
 .navs{display:none;position:absolute;top:64px;left:0;right:0;background:rgba(14,22,36,.98);padding:6px 24px 18px;flex-direction:column}
 .site-header.open .navs{display:flex}
 .nav-l,.nav-r{flex-direction:column;align-items:stretch;gap:0;justify-content:flex-start}
 .nav-l a,.nav-r a{padding:12px 0!important;border-bottom:1px solid rgba(255,255,255,.12)!important}
 .cta{margin-top:10px;text-align:center}
 .section{padding:64px 0}.row{grid-template-columns:70px 1fr;gap:18px}.row time b{font-size:34px}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}