:root{--background:#fff;--foreground:#030712;--primary:#101828;--primary-foreground:#f9fafb;--muted:#f3f4f6;--muted-foreground:#6a7282;--border:#e5e7eb;--ring:#99a1af;--radius:12px;--header-height:64px;color:var(--foreground);background:var(--background);-webkit-font-smoothing:antialiased;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}*,:before,:after{box-sizing:border-box}body{min-height:100vh;margin:0}body:has(dialog[open]){overflow:hidden}#root{flex-direction:column;min-height:100vh;display:flex}main{flex:1}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}:focus-visible{outline:2px solid var(--ring);outline-offset:2px}.site-header{z-index:10;height:var(--header-height);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border-bottom:1px solid var(--border);background:#fffffff2;position:sticky;top:0}.site-header__inner{align-items:center;height:100%;display:flex}.brand{color:var(--foreground);align-items:center;gap:10px;text-decoration:none;display:inline-flex}.brand__logo{width:26px;height:26px;color:var(--primary)}.brand__name{font-size:1.25rem;font-weight:700}.brand__divider{background:var(--border);width:1px;height:20px}.brand__section{color:var(--muted-foreground);font-size:1rem;font-weight:500}main.container{padding-top:32px}.intro{max-width:720px;color:var(--foreground);margin:0 0 28px;font-size:clamp(1.05rem,2vw,1.25rem);font-weight:600;line-height:1.4}.empty-state{text-align:center;color:var(--muted-foreground);background:var(--muted);border-radius:var(--radius);padding:48px 24px}.video-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;padding-bottom:64px;display:grid}.video-card{color:inherit;background:var(--background);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;flex-direction:column;text-decoration:none;transition:transform .15s,box-shadow .15s;display:flex;overflow:hidden}.video-card:hover{transform:translateY(-2px);box-shadow:0 10px 24px -12px #10182859}.video-card__thumb{aspect-ratio:16/9;background:var(--muted);position:relative;overflow:hidden}.video-card__thumb img{object-fit:cover;width:100%;height:100%;display:block;position:absolute;inset:0}.video-card__play{width:56px;height:56px;color:var(--primary-foreground);background:#101828cc;border-radius:50%;place-items:center;margin:auto;transition:background .15s,transform .15s;display:grid;position:absolute;inset:0}.video-card__placeholder{background:linear-gradient(135deg,#101828,#364153);position:absolute;inset:0}.video-card__placeholder-logo{color:#ffffffe6;width:28px;height:28px;position:absolute;top:16px;left:16px}.video-card__play svg{width:24px;height:24px;margin-left:3px}.video-card:hover .video-card__play{background:var(--primary);transform:scale(1.08)}.video-card__body{flex-direction:column;gap:6px;padding:16px;display:flex}.video-card__title{margin:0;font-size:1.05rem;font-weight:600;line-height:1.35}.video-card__desc{color:var(--muted-foreground);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:.925rem;line-height:1.5;display:-webkit-box;overflow:hidden}.video-card__meta{color:var(--muted-foreground);margin:0;font-size:.825rem}.modal{border-radius:var(--radius);background:var(--background);width:min(1000px,100vw - 32px);max-height:calc(100vh - 32px);color:inherit;border:none;padding:0;overflow:auto}.modal::backdrop{background:#030712bf}.modal__header{justify-content:space-between;align-items:center;gap:16px;padding:12px 12px 12px 20px;display:flex}.modal__title{margin:0;font-size:1.1rem;font-weight:600}.modal__header form{margin:0}.modal__close{width:36px;height:36px;color:var(--foreground);cursor:pointer;background:0 0;border:none;border-radius:8px;place-items:center;padding:0;display:grid}.modal__close:hover{background:var(--muted)}.modal__close svg{width:20px;height:20px}.modal__player{aspect-ratio:16/9;background:#000}.modal__player iframe{border:0;width:100%;height:100%;display:block}.modal__player--post{aspect-ratio:auto;background:var(--muted);height:min(75vh,760px)}.modal__player--post iframe{background:var(--background);max-width:560px;margin:0 auto}.modal__meta{padding:16px 20px 20px}.modal__desc{color:var(--muted-foreground);white-space:pre-line;margin:0 0 12px;line-height:1.6}.modal__footer{color:var(--muted-foreground);justify-content:space-between;align-items:center;gap:16px;font-size:.9rem;display:flex}.modal__footer a{color:var(--primary);margin-left:auto;font-weight:500}.site-footer{color:var(--muted-foreground);border-top:1px solid var(--border);padding:24px 0;font-size:.875rem}@media (width<=640px){main.container{padding-top:16px}.video-grid{grid-template-columns:1fr;gap:16px}.modal{border-radius:0;width:100vw;max-width:100vw;max-height:100vh}}@media (prefers-reduced-motion:reduce){.video-card,.video-card__play{transition:none}}