:root{color-scheme:dark;font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:#101721;color:#f2f6f8}
*{box-sizing:border-box}body{margin:0;min-height:100vh;background:linear-gradient(155deg,#101721 35%,#1c2630 100%)}
.shell{width:min(100% - 32px,920px);margin:0 auto;padding:28px 0 48px}.shell.narrow{max-width:690px}
nav{display:flex;justify-content:space-between;gap:16px;align-items:center;color:#8da0ac;font-size:14px}a{color:#8fe2c7}nav a{text-decoration:none}nav a:hover,footer a:hover{text-decoration:underline}
header{padding:54px 0 30px}.eyebrow{color:#8fe2c7;font-size:12px;font-weight:700}h1{font-size:clamp(36px,7vw,56px);line-height:1.15;margin:12px 0 16px}header p{max-width:670px;font-size:17px;line-height:1.7;color:#c1ccd3;margin:0}
h2{font-size:20px;line-height:1.3;margin:0}.panel{border:1px solid #34444c;border-radius:8px;background:#19242d;padding:26px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px}.section-head span{color:#8da0ac;font-size:13px}.muted{color:#b2c0c9;line-height:1.65;font-size:14px}.info{padding:30px 0 12px}.info p{max-width:740px;color:#b2c0c9;line-height:1.7;font-size:14px}
button{border:1px solid #647982;border-radius:6px;background:#273741;color:#f2f6f8;padding:10px 16px;min-height:44px;font:600 14px system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;cursor:pointer}button:hover{filter:brightness(1.1)}button:disabled{opacity:.55;cursor:wait}.primary{background:#8fe2c7;color:#10251f;border-color:#8fe2c7;font-weight:750}.danger{margin-top:20px;border-color:#e8a59a;color:#ffb6ac;background:transparent}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #ffca86;outline-offset:3px}
.message{min-height:22px;color:#ffd097;font-size:14px}.links{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;margin-top:24px}.links[hidden]{display:none}.links label{display:grid;gap:6px;color:#c4d1d7;font-size:13px;min-width:0}.links input{width:100%;min-width:0;border:1px solid #52636d;border-radius:5px;padding:11px 12px;background:#0c151d;color:#f2f6f8;font:13px/1.4 monospace}.links button{align-self:end}
.camera-frame{position:relative;display:grid;place-items:center;aspect-ratio:4/3;background:#0b1218;border:1px solid #435660;border-radius:6px;overflow:hidden;color:#8da0ac}.camera-frame video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}.camera-frame video[hidden]{display:none}#countdown{position:absolute;top:16px;right:16px;background:#111d24d9;color:#fff;padding:5px 10px;border-radius:4px;font-weight:700}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px}.photo{margin:0;border:1px solid #34444c;border-radius:6px;overflow:hidden;background:#0c151d}.photo img{display:block;width:100%;aspect-ratio:3/4;object-fit:contain}.photo figcaption{padding:8px 10px;font-size:12px;color:#b2c0c9}.empty{padding:26px 0;color:#a9b8c1}footer{margin-top:30px;color:#8da0ac;font-size:12px}
@media(max-width:600px){header{padding:36px 0 24px}header p{font-size:15px}.panel{padding:18px}.links{grid-template-columns:1fr}.links button{justify-self:start}.gallery{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}}