.seo-page-shell{place-items:start center;padding:18px;overflow:visible}
.seo-page-card{width:min(100%,1040px);margin:0 auto}
.seo-topbar{margin-bottom:10px}
.seo-breadcrumbs{display:flex;align-items:center;gap:8px;margin:8px 2px 18px;color:var(--muted);font-size:12px;font-weight:700}
.seo-breadcrumbs a{color:inherit;text-decoration:none}
.seo-breadcrumbs a:hover{color:var(--text)}
.seo-video-header,.seo-catalog-header{max-width:850px;margin:0 auto 18px;text-align:center}
.seo-video-header h1,.seo-catalog-header h1{margin:0;color:var(--text);font-size:clamp(28px,4vw,42px);line-height:1.08;letter-spacing:-.045em;font-weight:900}
.seo-video-header p,.seo-catalog-header p{margin:10px auto 0;max-width:700px;color:var(--muted);font-size:13px;line-height:1.5}
.seo-video-player{position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;border:1px solid var(--line);border-radius:24px;background:#000;box-shadow:var(--soft-shadow)}
.seo-video-player iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.seo-video-fallback{display:block;overflow:hidden;border-radius:24px;border:1px solid var(--line);background:var(--surface)}
.seo-video-fallback img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.seo-video-content{max-width:850px;margin:20px auto 0;text-align:left}
.seo-video-description{color:var(--text);font-size:15px;line-height:1.72;white-space:normal}
.seo-youtube-button{display:inline-flex;align-items:center;gap:9px;margin-top:18px;padding:12px 17px;border-radius:14px;background:#ff0033;color:#fff;text-decoration:none;font-size:14px;font-weight:850;box-shadow:0 10px 28px rgba(255,0,51,.18);transition:transform .18s ease,box-shadow .18s ease}
.seo-youtube-button:hover{transform:translateY(-1px);box-shadow:0 14px 32px rgba(255,0,51,.24)}
.seo-youtube-button span{font-size:13px}
.seo-related{margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.seo-related h2{margin:0 0 14px;text-align:center;font-size:23px;line-height:1.2;letter-spacing:-.03em}
.seo-catalog-header{padding:8px 0 4px}
.seo-video-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.seo-video-grid-catalog{margin-top:18px}
.seo-video-card{min-width:0;display:block;overflow:hidden;border:1px solid var(--line);border-radius:20px;background:var(--surface);color:var(--text);text-decoration:none;box-shadow:var(--soft-shadow);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
.seo-video-card:hover{transform:translateY(-2px);border-color:rgba(255,0,51,.2);box-shadow:0 16px 34px rgba(15,20,30,.09)}
.seo-video-card-thumb{display:block;position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;background:var(--control)}
.seo-video-card-thumb img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .22s ease}
.seo-video-card:hover .seo-video-card-thumb img{transform:scale(1.015)}
.seo-video-card-thumb i{position:absolute;left:50%;top:50%;width:46px;height:46px;transform:translate(-50%,-50%);display:grid;place-items:center;padding-left:3px;border-radius:50%;background:rgba(10,12,17,.78);color:#fff;font-style:normal;font-size:17px;box-shadow:0 8px 24px rgba(0,0,0,.22)}
.seo-video-card-copy{display:block;padding:13px 14px 15px}
.seo-video-card-copy strong{display:block;font-size:16px;line-height:1.28;letter-spacing:-.02em}
.seo-video-card-copy small{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:6px;color:var(--muted);font-size:11px;line-height:1.45}
.seo-empty{text-align:center;color:var(--muted);padding:30px 0}

.seo-about{max-width:850px;margin:24px auto 0;padding:18px 20px;display:grid;grid-template-columns:58px minmax(0,1fr);gap:16px;align-items:start;border:1px solid var(--line);border-radius:20px;background:linear-gradient(135deg,var(--surface),rgba(255,255,255,.42));box-shadow:var(--soft-shadow)}
[data-theme="dark"] .seo-about{background:linear-gradient(135deg,var(--surface),rgba(255,255,255,.025))}
.seo-about-catalog{margin:8px auto 20px}
.seo-about-mark{width:58px;height:58px;display:grid;place-items:center;border-radius:16px;background:var(--control);overflow:hidden}
.seo-about-mark img{display:block;width:100%;height:100%;object-fit:contain}
.seo-about-copy h2{margin:1px 0 6px;color:var(--text);font-size:18px;line-height:1.25;letter-spacing:-.025em}
.seo-about-copy p{margin:0;color:var(--muted);font-size:13px;line-height:1.58}
.seo-about-copy .seo-about-footer{margin-top:7px}
.seo-about-copy a{display:inline-block;margin-top:9px;color:var(--text);font-size:12px;font-weight:800;text-decoration:none}
.seo-about-copy a:hover{text-decoration:underline}

@media(max-width:560px){
  .seo-page-shell{padding:10px}
  .seo-about{margin-top:18px;padding:14px;grid-template-columns:46px minmax(0,1fr);gap:12px;border-radius:17px}
  .seo-about-catalog{margin:4px auto 16px}
  .seo-about-mark{width:46px;height:46px;border-radius:13px}
  .seo-about-copy h2{font-size:16px}
  .seo-about-copy p{font-size:12px;line-height:1.52}
  .seo-page-card{padding:14px}
  .seo-breadcrumbs{margin:6px 0 14px;font-size:11px}
  .seo-video-header,.seo-catalog-header{margin-bottom:14px}
  .seo-video-header h1,.seo-catalog-header h1{font-size:clamp(25px,8.5vw,34px)}
  .seo-video-header p,.seo-catalog-header p{font-size:12px}
  .seo-video-player,.seo-video-fallback{border-radius:17px}
  .seo-video-content{margin-top:15px}
  .seo-video-description{font-size:14px;line-height:1.62}
  .seo-youtube-button{width:100%;justify-content:center;margin-top:15px}
  .seo-related{margin-top:24px;padding-top:20px}
  .seo-related h2{font-size:20px}
  .seo-video-grid{grid-template-columns:1fr;gap:10px}
  .seo-video-card{border-radius:17px}
  .seo-video-card-copy strong{font-size:15px}
}