:root{--bg: #0a0a0f;--surface: #12121a;--surface2: #1c1c28;--border: rgba(255,255,255,.07);--accent: #ff3c3c;--accent2: #ff7043;--text: #f0f0f0;--text-muted: #888;--card-radius: 10px;--tab-h: 52px;--header-h: 60px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg);color:var(--text);font-family:Noto Sans JP,sans-serif;min-height:100dvh;position:relative;width:100%;max-width:100%;overflow-x:hidden;overscroll-behavior-x:none}header{position:sticky;top:0;z-index:100;height:var(--header-h);width:100%;max-width:100%;background:#0a0a0feb;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 20px;gap:20px;touch-action:pan-y}.logo{display:flex;align-items:center;gap:8px;font-family:Oswald,sans-serif;font-size:1.25rem;letter-spacing:.05em;color:var(--accent);flex-shrink:0;min-width:0}.logo svg{width:24px;height:24px}.search-box{display:flex;align-items:center;flex:1;min-width:0;max-width:300px;height:36px;background:#ffffff0d;border:1px solid var(--border);border-radius:6px;padding:0 12px;gap:8px}.search-box input{flex:1;background:none;border:none;color:var(--text);font-size:.875rem;outline:none}.search-box input::placeholder{color:var(--text-muted)}.clear-btn{display:none;flex-shrink:0;width:24px;height:24px;background:none;border:none;color:var(--text-muted);cursor:pointer;transition:color .2s;padding:0}.clear-btn:hover{color:var(--text)}.clear-btn.show{display:flex;align-items:center;justify-content:center}.page-description{padding:14px 20px 10px;font-size:.9rem;line-height:1.6;color:var(--text-muted);touch-action:pan-y}.category-tabs{position:sticky;top:var(--header-h);z-index:95;background:#0a0a0ff2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);display:flex;overflow-x:auto;scrollbar-width:none;height:40px;max-width:100%;touch-action:pan-x pan-y}.category-tabs::-webkit-scrollbar{display:none}.category-tab{flex:0 0 auto;padding:0 16px;height:100%;display:flex;align-items:center;font-size:.75rem;font-weight:500;white-space:nowrap;cursor:pointer;border:none;background:none;color:var(--text-muted);position:relative;transition:color .2s}.category-tab:after{content:"";position:absolute;bottom:0;left:16px;right:16px;height:2px;background:var(--accent2);transform:scaleX(0);transition:transform .25s}.category-tab.active{color:var(--text)}.category-tab.active:after{transform:scaleX(1)}.tabs-wrap{position:sticky;top:calc(var(--header-h) + 40px);z-index:90;background:#0a0a0ff2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);max-width:100%;overflow-x:hidden;touch-action:pan-y}.tabs{display:flex;overflow-x:auto;scrollbar-width:none;height:var(--tab-h);max-width:100%;touch-action:pan-x pan-y}.tabs::-webkit-scrollbar{display:none}.tab{flex:0 0 auto;padding:0 20px;height:100%;display:flex;align-items:center;gap:6px;font-size:.82rem;font-weight:500;white-space:nowrap;cursor:pointer;border:none;background:none;color:var(--text-muted);position:relative;transition:color .2s}.tab:after{content:"";position:absolute;bottom:0;left:20px;right:20px;height:2px;background:var(--accent);transform:scaleX(0);transition:transform .25s}.tab.active{color:var(--text)}.tab.active:after{transform:scaleX(1)}.tab .dot{width:6px;height:6px;border-radius:50%;background:var(--text-muted);transition:background .2s}.tab.active .dot{background:var(--accent)}.panels-outer{overflow-x:clip;overflow-y:visible;width:100%;max-width:100%;min-height:calc(100dvh - var(--header-h) - 40px - var(--tab-h))}.panels{display:flex;width:100%;max-width:100%;transition:transform .38s cubic-bezier(.4,0,.2,1);will-change:transform;touch-action:pan-y}.panel{flex:0 0 100%;width:100%;max-width:100%;min-height:calc(100dvh - var(--header-h) - var(--tab-h) - 40px);padding:20px 16px 80px;scroll-margin-top:calc(var(--header-h) + 40px + var(--tab-h))}.channel-head{display:flex;align-items:center;gap:12px;margin-bottom:20px;padding:14px 16px;background:var(--surface);border-radius:12px;border:1px solid var(--border)}.channel-avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;font-family:Oswald,sans-serif;font-size:1.1rem;color:#fff;flex-shrink:0}.channel-info h2{font-size:.95rem;font-weight:700}.channel-info p{font-size:.75rem;color:var(--text-muted);margin-top:2px}.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px}@media (min-width: 600px){.video-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}}@media (min-width: 900px){.video-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}}.card{cursor:pointer;border-radius:var(--card-radius);background:var(--surface);border:1px solid var(--border);overflow:hidden;transition:transform .18s,box-shadow .18s,border-color .18s}.card:hover{transform:translateY(-3px);box-shadow:0 10px 30px #00000080;border-color:#ff3c3c4d}.card:active{transform:translateY(0)}.thumb-wrap{position:relative;aspect-ratio:16/9;overflow:hidden;background:#1a1a24}.thumb-wrap img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s}.card:hover .thumb-wrap img{transform:scale(1.05)}.play-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#0000;transition:background .2s}.card:hover .play-overlay{background:#00000059}.play-icon{width:42px;height:42px;background:#ff3c3ceb;border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transform:scale(.7);transition:opacity .2s,transform .2s}.card:hover .play-icon{opacity:1;transform:scale(1)}.play-icon svg{margin-left:3px}.card-body{padding:10px 12px 12px}.card-title{font-size:.78rem;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--text);font-weight:500}.card-date{font-size:.7rem;color:var(--text-muted);margin-top:5px}.skeleton{border-radius:var(--card-radius);background:var(--surface);border:1px solid var(--border);overflow:hidden;animation:shimmer 1.5s infinite}.skeleton-thumb{aspect-ratio:16/9;background:var(--surface2)}.skeleton-body{padding:10px 12px 12px}.skeleton-line{height:10px;border-radius:5px;background:var(--surface2);margin-bottom:6px}.skeleton-line.short{width:60%}@keyframes shimmer{0%,to{opacity:1}50%{opacity:.5}}.error-state{text-align:center;padding:40px 20px;color:var(--text-muted);grid-column:1 / -1}.error-state svg{width:40px;height:40px;margin-bottom:12px;opacity:.4}.error-state p{font-size:.85rem}.retry-btn{margin-top:14px;padding:8px 20px;border:1px solid var(--accent);background:none;color:var(--accent);border-radius:20px;cursor:pointer;font-size:.82rem;transition:background .2s,color .2s}.retry-btn:hover{background:var(--accent);color:#fff}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:999;background:#000000e0;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .25s;padding:16px}.modal-backdrop.open{opacity:1;pointer-events:all}.modal{width:100%;max-width:860px;background:var(--surface);border-radius:14px;overflow:hidden;border:1px solid var(--border);transform:scale(.94) translateY(20px);transition:transform .28s cubic-bezier(.34,1.56,.64,1);box-shadow:0 30px 80px #000000b3}.modal-backdrop.open .modal{transform:scale(1) translateY(0)}.modal-top{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--border);gap:12px}.modal-title{font-size:.85rem;font-weight:500;line-height:1.4;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.close-btn{flex-shrink:0;width:34px;height:34px;border-radius:50%;border:1px solid var(--border);background:var(--surface2);color:var(--text);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,border-color .2s}.close-btn:hover{background:var(--accent);border-color:var(--accent)}.video-wrap{position:relative;aspect-ratio:16/9;background:#000}.video-wrap iframe{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:none}.modal-footer{padding:10px 16px;font-size:.72rem;color:var(--text-muted)}.swipe-hint{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:#1e1e28eb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--border);border-radius:20px;padding:8px 18px;font-size:.75rem;color:var(--text-muted);display:flex;align-items:center;gap:6px;pointer-events:none;z-index:50;opacity:1;transition:opacity .5s}.swipe-hint.hidden{opacity:0}@media (max-width: 640px){header{padding:0 12px;gap:12px}.logo{font-size:1rem;letter-spacing:.03em}.logo svg{width:20px;height:20px}.search-box{max-width:none;height:34px;padding:0 10px}.page-description,.panel{padding-left:12px;padding-right:12px}}