@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap");.demo-page{--bg-dark:#050508;--bg-subtle:#0a0a0f;--bg-card:#0f0f14;--bg-card-hover:#141419;--border:#1a1a22;--border-subtle:#12121a;--text-primary:#f0f0f5;--text-secondary:#8888a0;--text-tertiary:#5a5a70;--accent:#00D4FF;--accent-dim:#0099bb;--accent-glow:rgba(0,212,255,0.4);--header-height:56px;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-dark);color:var(--text-primary);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased}.demo-page *{box-sizing:border-box}.demo-header{position:fixed;top:0;left:0;right:0;height:var(--header-height);z-index:100;background:rgba(5,5,8,.85);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;padding:0 24px}.demo-header-inner{display:flex;justify-content:space-between;align-items:center;width:100%;max-width:1400px;margin:0 auto}.demo-header-left{gap:24px}.demo-header-left,.demo-logo{display:flex;align-items:center}.demo-logo{font-size:20px;font-weight:800;letter-spacing:-.5px;text-decoration:none;gap:1px}.demo-logo-mp4{color:var(--text-primary)}.demo-logo-e{color:var(--accent)}.demo-header-title{font-size:14px;font-weight:600;color:var(--text-secondary);padding-left:24px;border-left:1px solid var(--border)}.demo-header-right{display:flex;align-items:center;gap:12px}.demo-access-code{display:flex;align-items:center;gap:8px}.demo-access-code input{background:var(--bg-subtle);border:1px solid var(--border);color:var(--text-primary);padding:6px 12px;border-radius:6px;font-size:13px;font-family:inherit;width:160px;outline:none;transition:border-color .2s}.demo-access-code input::placeholder{color:var(--text-tertiary)}.demo-access-code input:focus{border-color:var(--accent-dim)}.demo-unlock-btn{background:var(--accent);color:#000;border:none;padding:6px 14px;border-radius:6px;font-size:13px;font-weight:600;font-family:inherit;cursor:pointer;transition:background .2s}.demo-unlock-btn:hover{background:var(--accent-dim)}.demo-unlock-btn:disabled{opacity:.5;cursor:not-allowed}.demo-file-button{background:transparent;color:var(--text-secondary);border:1px solid var(--border);padding:6px 14px;border-radius:6px;font-size:13px;font-weight:500;font-family:inherit;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:6px}.demo-file-button:hover{color:var(--text-primary);border-color:var(--accent-dim);background:rgba(0,212,255,.05)}.demo-content{max-width:1400px;margin:0 auto;padding:calc(var(--header-height) + 32px) 24px 48px}.demo-collection-section{margin-bottom:48px}.demo-collection-header{margin-bottom:20px}.demo-collection-title{font-size:20px;font-weight:700;color:var(--text-primary);margin:0 0 6px}.demo-collection-desc{font-size:13px;color:var(--text-secondary);margin:0}.demo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.demo-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:10px;overflow:hidden;cursor:pointer;transition:all .25s ease}.demo-card:hover{transform:scale(1.02);border-color:var(--accent-dim);box-shadow:0 0 20px rgba(0,212,255,.08)}.demo-card-thumbnail{position:relative;aspect-ratio:16/9;background-color:var(--bg-subtle);background-size:cover;background-position:50%;overflow:hidden}.demo-card-thumbnail:after{content:"";position:absolute;inset:0;background:rgba(0,0,0,.2);transition:background .25s}.demo-card:hover .demo-card-thumbnail:after{background:rgba(0,0,0,.1)}.demo-card-play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;width:48px;height:48px;border-radius:50%;background:rgba(0,0,0,.6);border:2px solid rgba(255,255,255,.3);display:flex;align-items:center;justify-content:center;transition:all .25s}.demo-card:hover .demo-card-play{background:var(--accent);border-color:var(--accent);transform:translate(-50%,-50%) scale(1.1)}.demo-card-play svg{width:18px;height:18px;fill:#fff;margin-left:2px}.demo-card:hover .demo-card-play svg{fill:#000}.demo-card-info{padding:14px 16px}.demo-card-title{font-size:14px;font-weight:600;color:var(--text-primary);margin:0 0 4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.demo-card-desc{font-size:12px;color:var(--text-tertiary);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.demo-player-view{max-width:1400px;margin:0 auto;padding:calc(var(--header-height) + 12px) 24px 24px}.demo-player-top-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;min-height:36px;position:relative;z-index:20}.demo-back-button{display:flex;align-items:center;gap:6px;background:transparent;border:1px solid var(--border);color:var(--text-secondary);padding:6px 12px;border-radius:6px;font-size:13px;font-family:inherit;cursor:pointer;transition:all .2s}.demo-back-button:hover{color:var(--text-primary);border-color:var(--accent-dim)}.demo-back-button svg{width:14px;height:14px}.demo-controls{display:flex;align-items:center;gap:12px}.demo-toggle-wrapper{display:flex;align-items:center;gap:8px}.demo-toggle-label{font-size:13px;color:var(--text-secondary);font-weight:500;user-select:none}.demo-toggle{position:relative;width:36px;height:20px;border-radius:10px;background:var(--border);cursor:pointer;transition:background .2s;border:none;padding:0}.demo-toggle.active{background:var(--accent)}.demo-toggle-knob{position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;background:#fff;transition:transform .2s}.demo-toggle.active .demo-toggle-knob{transform:translateX(16px)}.demo-player-container{width:100%;aspect-ratio:16/9;background:#000;border-radius:10px;overflow:hidden;border:1px solid var(--border-subtle);position:relative;z-index:1}.demo-player-container>div{width:100%;height:100%}.demo-video-switcher{gap:6px;flex:1;min-width:0}.demo-nav-button,.demo-video-switcher{display:flex;align-items:center;justify-content:center}.demo-nav-button{width:26px;height:26px;border-radius:5px;border:1px solid var(--border);background:transparent;color:var(--text-secondary);cursor:pointer;transition:all .15s;flex-shrink:0}.demo-nav-button:hover:not(:disabled){border-color:var(--accent-dim);color:var(--text-primary);background:rgba(0,212,255,.05)}.demo-nav-button:disabled{opacity:.3;cursor:not-allowed}.demo-nav-button svg{width:12px;height:12px}.demo-video-switcher-list{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}.demo-video-switcher-list::-webkit-scrollbar{display:none}.demo-switcher-item{flex-shrink:0;padding:2px;border-radius:4px;border:2px solid transparent;background:transparent;cursor:pointer;transition:all .15s;font-family:inherit}.demo-switcher-item:hover{border-color:var(--border)}.demo-switcher-item.active{border-color:var(--accent)}.demo-switcher-thumb{width:56px;height:32px;border-radius:2px;background-color:var(--bg-subtle);background-size:cover;background-position:50%;display:flex;align-items:center;justify-content:center;overflow:hidden}.demo-switcher-thumb svg{width:10px;height:10px;color:var(--text-tertiary);fill:var(--text-tertiary)}.demo-empty{flex-direction:column;padding:80px 24px;text-align:center}.demo-empty,.demo-empty-icon{display:flex;align-items:center;justify-content:center}.demo-empty-icon{width:64px;height:64px;border-radius:16px;background:var(--bg-card);border:1px solid var(--border);margin-bottom:20px}.demo-empty-icon svg{width:28px;height:28px;color:var(--text-tertiary)}.demo-empty-text{font-size:15px;color:var(--text-secondary);margin:0 0 20px}.demo-loading{display:flex;align-items:center;justify-content:center;padding:120px 24px}.demo-spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:demo-spin .8s linear infinite}@keyframes demo-spin{to{transform:rotate(1turn)}}.demo-error{background:rgba(239,68,68,.08);border:1px solid rgba(239,68,68,.2);border-radius:8px;padding:12px 16px;margin-bottom:24px;font-size:13px;color:#f87171}@media (max-width:1024px){.demo-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.demo-header-inner{flex-wrap:wrap;gap:8px;padding:8px 16px}.demo-header{height:auto;min-height:var(--header-height);padding:0}.demo-header-title{display:none}.demo-header-right{flex-wrap:wrap;gap:8px}.demo-access-code input{width:120px}.demo-content{padding-top:calc(var(--header-height) + 48px);padding-left:16px;padding-right:16px}.demo-grid{grid-template-columns:1fr;gap:16px}.demo-player-view{padding-left:16px;padding-right:16px}.demo-player-top-bar{gap:8px}.demo-video-switcher{display:none}}@media (max-width:480px){.demo-access-code{flex-direction:column;align-items:stretch;gap:6px}.demo-access-code input{width:100%}.demo-card-play{width:40px;height:40px}.demo-card-play svg{width:14px;height:14px}}