:root{--ink:#191b1e;--muted:#6b7280;--accent:#1e3a8a;--accent-dark:#152d6e;--bg:#fcfcfa;--card:#fff;--rule:#e7e5e0}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:17px}
a{color:var(--accent-dark)}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
header.site{position:sticky;top:0;background:rgba(252,252,250,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule);z-index:50}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;text-decoration:none}
.logo img{height:34px;width:auto;display:block}
nav.main a{color:var(--ink);text-decoration:none;margin-left:22px;font-size:15px;font-weight:600}
nav.main a:hover,nav.main a.active{color:var(--accent)}
nav.main{display:flex;align-items:center}
.menu-btn{display:none;background:none;border:none;font-size:26px;cursor:pointer;color:var(--ink)}
.hero{padding:88px 0 64px}
.hero h1{font-size:clamp(34px,5vw,56px);line-height:1.12;margin:0 0 20px;font-weight:800;letter-spacing:-.01em;max-width:19ch}
.hero h1 em{color:var(--accent);font-style:normal}
.hero p{max-width:62ch;font-size:19px;color:#374151;margin:0 0 14px}
.cta-row{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 26px;border-radius:6px;font-weight:700;text-decoration:none;font-size:16px}
.btn.primary{background:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-dark)}
.btn.ghost{border:2px solid var(--ink);color:var(--ink)}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent)}
section{padding:56px 0}
h2.sec{font-size:28px;font-weight:800;margin:0 0 8px;letter-spacing:-.01em}
p.sec-sub{color:var(--muted);margin:0 0 32px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:26px}
.card{background:var(--card);border:1px solid var(--rule);border-radius:10px;overflow:hidden;text-decoration:none;color:var(--ink);display:flex;flex-direction:column;transition:transform .15s ease,box-shadow .15s ease}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(0,0,0,.09)}
.card .thumb{aspect-ratio:3/2;background:#eceae6;overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.card .body{padding:16px 18px 18px}
.card h3{margin:0 0 6px;font-size:17px;line-height:1.3}
.card .meta{font-size:13px;color:var(--muted)}
.tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--accent-dark);background:#e8eef8;border-radius:4px;padding:2px 8px;margin-bottom:10px}
.filters{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:0 0 30px}
.filters button{border:1.5px solid var(--rule);background:#fff;border-radius:99px;padding:8px 18px;font-size:14px;font-weight:600;cursor:pointer;color:var(--ink)}
.filters button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.filters-gap{width:1px;align-self:stretch;background:var(--rule);margin:2px 8px 2px auto}
.filters button.archive-filter{border-style:dashed;color:var(--muted);background:transparent}
.filters button.archive-filter.on{background:var(--muted);border-color:var(--muted);color:#fff}
.tag.archive-tag{color:var(--muted);background:#eae6dc}
article.case{max-width:760px;margin:0 auto;padding:56px 0 40px}
article.case h1{font-size:clamp(28px,4vw,40px);line-height:1.15;margin:6px 0 10px;letter-spacing:-.01em}
article.case .meta{color:var(--muted);font-size:15px;margin-bottom:34px}
article.case figure{margin:30px 0}
article.case img,article.case video{width:100%;border-radius:8px;display:block}
article.case figcaption{font-size:14px;color:var(--muted);margin-top:8px}
.embed{position:relative;aspect-ratio:16/9;margin:30px 0}
.embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0;border-radius:8px}
.embed.map{aspect-ratio:4/3}
.yt-facade{cursor:pointer;background:#000;border-radius:8px;overflow:hidden}
.yt-facade img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.85;border-radius:8px}
.yt-facade button{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:68px;height:48px;background:rgba(0,0,0,.8);border:none;border-radius:4px;cursor:pointer;display:flex;align-items:center;justify-content:center}
.yt-facade button::after{content:'';border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff}
.yt-facade button:hover{background:#ff0000}
.backlink{font-size:15px;font-weight:600;text-decoration:none}
.pager{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--rule);padding:26px 0 10px;margin-top:40px}
.pager a{font-size:15px;font-weight:600;text-decoration:none;max-width:45%}
footer.site{border-top:1px solid var(--rule);margin-top:60px;padding:38px 0 50px;font-size:14px;color:var(--muted)}
footer.site .wrap{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
footer.site a{color:var(--muted)}
.press-list{max-width:760px}
.press-item{border-bottom:1px solid var(--rule);padding:26px 0}
.press-item h3{margin:0 0 4px;font-size:18px}
.press-item .date{color:var(--muted);font-size:14px}
.press-item img{max-width:340px;width:100%;border-radius:6px;margin-top:14px;display:block}
.info-table{border-collapse:collapse;margin:20px 0}
.info-table td{padding:6px 20px 6px 0;vertical-align:top}
.info-table td:first-child{font-weight:700;white-space:nowrap}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.notice{background:#e8eef8;border-left:4px solid var(--accent);padding:14px 18px;border-radius:0 6px 6px 0;font-size:15px}
.timeline{list-style:none;padding:22px 0 0;margin:20px 0 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:20px 24px;position:relative}
.timeline::before{content:'';position:absolute;top:6px;left:0;right:0;height:2px;background:var(--rule)}
.timeline li{padding:20px 0 0;border-left:none;position:relative}
.timeline li::before{content:'';position:absolute;left:0;top:1px;width:10px;height:10px;border-radius:50%;background:var(--accent)}
.timeline strong{display:block;font-size:14.5px;margin-bottom:4px}
.timeline span{color:var(--muted);font-size:13px;line-height:1.45;display:block}
@media (max-width:640px){.timeline{grid-template-columns:1fr 1fr}}
@media(max-width:720px){
 nav.main{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--rule);flex-direction:column;align-items:flex-start;padding:10px 24px 18px}
 nav.main.open{display:flex}
 nav.main a{margin:10px 0 0;font-size:17px}
 .menu-btn{display:block}
 .two-col{grid-template-columns:1fr}
 .hero{padding:56px 0 40px}
}