.sea-yt-wrap{max-width:1200px;margin:0 auto}
.sea-yt-title{margin:0 0 12px;line-height:1.2}
.sea-yt-grid{display:grid;grid-template-columns:repeat(var(--sea-yt-cols,3),1fr);gap:14px}
@media(max-width:980px){.sea-yt-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.sea-yt-grid{grid-template-columns:1fr}}
.sea-yt-card{background:#fff;border:1px solid #e9e9e9;border-radius:14px;overflow:hidden;box-shadow:0 8px 24px rgba(0,0,0,.06);transition:transform .2s}
.sea-yt-card:hover{transform:translateY(-2px)}
.sea-yt-thumb{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}
.sea-yt-meta{padding:10px 12px}
.sea-yt-title2{font-size:14px;line-height:1.35;margin:0 0 6px;color:#111}
.sea-yt-date{font-size:12px;color:#666;margin:0}
.sea-yt-lb{position:fixed;inset:0;background:var(--sea-lb-bg,rgba(0,0,0,.9));backdrop-filter:blur(var(--sea-lb-blur,0px));display:none;align-items:center;justify-content:center;z-index:999999;padding:20px;opacity:0;transition:opacity .18s ease-out}
.sea-yt-lb.is-open{display:flex;opacity:1}
.sea-yt-lb-inner{position:relative;width:90vw;max-width:var(--sea-lb-maxw,1200px);aspect-ratio:var(--sea-lb-aspect,16/9);background:#000;border-radius:12px;box-shadow:0 15px 40px rgba(0,0,0,.5);overflow:hidden;transform:scale(1);transition:transform .18s ease-out}
.sea-yt-lb[data-anim="zoom"] .sea-yt-lb-inner{transform:scale(.96)}
.sea-yt-lb.is-open[data-anim="zoom"] .sea-yt-lb-inner{transform:scale(1)}
.sea-yt-lb iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.sea-yt-lb-close{position:absolute;top:8px;right:8px;background:#fff;color:#111;border-radius:10px;padding:6px 10px;font-weight:700;line-height:1;cursor:pointer;border:0;box-shadow:0 2px 10px rgba(0,0,0,.25)}
.sea-yt-lb-nav{position:absolute;inset:0;display:flex;align-items:center;justify-content:space-between;pointer-events:none}
.sea-yt-lb-btn{pointer-events:auto;display:inline-flex;align-items:center;justify-content:center;width:var(--sea-lb-btn-size,44px);height:var(--sea-lb-btn-size,44px);margin:0 10px;border:0;border-radius:999px;background:var(--sea-lb-btn-bg,#ffffff);color:var(--sea-lb-btn-col,#111111);opacity:.92;cursor:pointer;font-size:var(--sea-lb-btn-font,22px);box-shadow:0 2px 10px rgba(0,0,0,.25)}
.sea-yt-lb-cap{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(transparent, rgba(0,0,0,.65));color:#fff;padding:10px 14px;font-size:14px;display:var(--sea-lb-cap,block)}