/* 交互与动效（纯 CSS，无外部依赖） */
header{transition:box-shadow .3s,background .3s}
header .wrap{transition:height .3s}
header.shrink .wrap{height:50px}header.shrink{box-shadow:0 4px 14px rgba(0,0,0,.25);background:rgba(10,42,94,.97)}
header.shrink .logo{font-size:18px}
.hero{position:relative;overflow:hidden}
.hero canvas.net{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.hero .wrap{position:relative;z-index:1}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.card{transition:transform .25s,box-shadow .25s,border-color .25s}
.card:hover{transform:translateY(-5px);box-shadow:0 14px 30px rgba(10,42,94,.14);border-color:#b9cdf0}
.btn{transition:transform .2s,box-shadow .2s,background .2s,color .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.25)}
.btn.ghost:hover{background:#fff;color:#0a2a5e}
figure img.shot{cursor:zoom-in;transition:transform .3s,box-shadow .3s}
figure img.shot:hover{transform:scale(1.015);box-shadow:0 14px 34px rgba(10,42,94,.2)}
.counters{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;text-align:center}
.counters .num{font-size:44px;font-weight:800;color:#0b3d91;line-height:1.1}
.counters .num small{font-size:16px;font-weight:600;margin-left:4px}
.counters p{color:#5b6b85;font-size:14px}
/* 灯箱 */
.lb{position:fixed;inset:0;background:rgba(6,16,36,.92);z-index:100;display:flex;align-items:center;justify-content:center;flex-direction:column;opacity:0;visibility:hidden;transition:opacity .25s}
.lb.open{opacity:1;visibility:visible}
.lb img{max-width:92vw;max-height:80vh;border-radius:6px;box-shadow:0 20px 60px rgba(0,0,0,.5);user-select:none;-webkit-user-drag:none}
.lb .cap{color:#dbe6ff;max-width:900px;text-align:center;margin-top:14px;font-size:14px;padding:0 20px}
.lb button{position:absolute;background:rgba(255,255,255,.12);color:#fff;border:0;font-size:30px;width:52px;height:52px;border-radius:50%;cursor:pointer;transition:background .2s}
.lb button:hover{background:rgba(255,255,255,.28)}
.lb .prev{left:20px;top:50%}.lb .next{right:20px;top:50%}.lb .close{right:20px;top:20px;font-size:24px}
.lb .cnt{color:#9fb3d8;font-size:12px;margin-top:6px}
/* 筛选与搜索 */
.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin:10px 0 24px}
.chips button{border:1px solid #c9d6ee;background:#fff;color:#0b3d91;border-radius:20px;padding:5px 16px;margin:0 6px 6px 0;cursor:pointer;font-size:14px;transition:all .2s}
.chips button.on,.chips button:hover{background:#0b3d91;color:#fff;border-color:#0b3d91}
.toolbar input{border:1px solid #c9d6ee;border-radius:20px;padding:7px 16px;min-width:240px;font-size:14px;outline:none;transition:border-color .2s,box-shadow .2s}
.toolbar input:focus{border-color:#0b3d91;box-shadow:0 0 0 3px rgba(11,61,145,.12)}
.fitem.hide{display:none!important}
.empty{display:none;text-align:center;color:#5b6b85;padding:20px}
.card.link{display:block;color:inherit}
.card .thumb{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:6px;margin-bottom:12px;background:#eef2f8}
.meta{font-size:13px;color:#5b6b85;margin-bottom:6px}
.article{max-width:880px;margin:0 auto}.article img{max-width:100%;height:auto}.article p{margin:0 0 12px}
.article h1{font-size:28px;color:#0a2a5e;margin-bottom:8px;line-height:1.4}
.crumb{font-size:13px;color:#5b6b85;margin-bottom:18px}
.logos{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}.logos img{width:100%;border:1px solid #e3e9f3;border-radius:6px;background:#fff;transition:transform .25s}.logos img:hover{transform:scale(1.05)}
.old-note{font-size:13px;color:#8a94a6;margin-top:20px}
/* 移动端菜单 */
@media(max-width:900px){
 nav{display:block!important;max-height:0;overflow:hidden;padding:0 20px!important;transition:max-height .35s ease,padding .35s}
 nav.open{max-height:520px;padding:10px 20px!important}
 .menu-btn{transition:transform .3s}.menu-btn.x{transform:rotate(90deg)}
 .counters{grid-template-columns:1fr 1fr}.logos{grid-template-columns:repeat(3,1fr)}
 header.shrink nav{top:50px}
}
@media(prefers-reduced-motion:reduce){
 *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
 .reveal{opacity:1;transform:none}
}
.logo img{height:40px;width:auto;display:block;transition:height .3s}
header.shrink .logo img{height:30px}