.guide-meta{display:flex;gap:10px 22px;flex-wrap:wrap;margin:22px 0 30px;color:var(--muted);font-size:13px;font-weight:600}.guide-meta span::before{content:'•';margin-right:8px;color:var(--green)}.watch-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}.watch-panel{min-width:0;scroll-margin-top:20px}.watch-panel video{display:block;width:100%;height:auto;aspect-ratio:16/9;background:#101827;border-radius:16px;border:1px solid var(--line)}.watch-panel video:focus-visible{outline:3px solid var(--blue);outline-offset:4px}.watch-caption{padding:18px 0 0}.watch-caption strong{font-size:14px}.watch-caption p,.player-tip,.privacy-note,.support-note{color:var(--muted);font-size:14px}.watch-caption p{margin-top:8px}.player-tip{margin:10px 0 0}.chapter-panel{padding:20px;background:var(--card);border:1px solid var(--line);border-radius:16px}.chapter-panel h2{font-size:18px;margin-bottom:4px}.chapter-panel>p{font-size:13px;color:var(--muted);margin-bottom:16px}.chapters{list-style:none;padding:0;margin:0;max-height:430px;overflow:auto;overscroll-behavior:auto;scrollbar-width:auto}.chapters a{display:grid;grid-template-columns:22px minmax(0,1fr) 35px;gap:8px;align-items:center;min-height:52px;padding:9px 7px;border-radius:8px;text-decoration:none;color:var(--text);font-size:13px;line-height:1.4}.chapters a:hover,.chapters a[aria-current="true"]{background:var(--bg);color:var(--green)}.chapters a:focus-visible{outline-offset:-3px}.chapter-number,.chapters time{color:var(--muted);font-size:11px;font-variant-numeric:tabular-nums}.chapters time{text-align:right}.quick-start{margin:48px 0 30px;padding-top:30px;border-top:1px solid var(--line)}.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin:24px 0}.quick-number{font-size:12px;color:var(--green);font-weight:800}.quick-grid h3{font-size:17px;line-height:1.4;margin:8px 0 12px}.quick-grid p{color:var(--muted);font-size:14px}.guide-next{padding:24px;border:1px solid var(--line);border-radius:16px;background:var(--card);display:flex;align-items:center;justify-content:space-between;gap:22px}.guide-next h2{margin-bottom:6px}.guide-next p{color:var(--muted);font-size:14px;margin:0}.guide-next .actions{margin:0;flex-shrink:0}.support-note{margin-top:22px}#video-status:empty{display:none}#video-status{color:var(--muted);font-size:14px;margin:10px 0}@media(min-width:1000px){main:has(.watch-layout){max-width:1220px}main:has(.watch-layout)>.intro{max-width:820px}}@media(max-width:800px){.watch-layout{grid-template-columns:1fr}.chapter-panel{padding:18px}.chapters{max-height:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 12px}.quick-grid{grid-template-columns:1fr;gap:14px}.quick-grid article{padding-bottom:8px}.guide-next{display:block}.guide-next .actions{margin-top:20px}}@media(max-width:480px){.chapters{grid-template-columns:1fr}.guide-meta{gap:6px 14px;font-size:12px;margin-bottom:22px}.watch-panel video{border-radius:10px}.guide-next .actions{flex-direction:column}.guide-next .button{width:100%}}