:root{--bg: #000;--panel: rgba(20, 22, 26, .75);--panel-solid: #1a1d24;--border: rgba(255,255,255,.1);--text: #fff;--text-muted: #999;--accent: #ff8c00;--accent-hover: #ffa333;--radius: 8px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;overflow:hidden;height:100vh;width:100vw;-webkit-user-select:none;user-select:none}button{cursor:pointer;background:transparent;border:none;color:inherit;outline:none;font-family:inherit}button:disabled{opacity:.5;cursor:not-allowed}.drag-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000c;z-index:9999;display:none;align-items:center;justify-content:center;border:4px dashed var(--accent)}.drag-overlay.active{display:flex}.drag-text{font-size:24px;color:var(--accent);pointer-events:none}.main-stage{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center}.video-wrapper{position:relative;max-width:100%;max-height:100%;background:#000;box-shadow:0 0 20px #00000080}video{display:block;width:100%;height:100%;object-fit:contain}#annotationCanvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;pointer-events:none;z-index:10}.canvas-text-input{position:absolute;background:#000000a6;border:1px dashed rgba(255,140,0,.8);border-radius:4px;color:#fff;font-family:sans-serif;font-size:24px;font-weight:700;padding:4px 8px;margin:0;outline:none;resize:none;min-width:120px;max-width:80%;z-index:30;overflow:hidden;line-height:1.2;box-sizing:border-box;white-space:pre-wrap}.canvas-text-input::placeholder{color:#fff6;font-weight:400;font-size:14px}.top-bar{position:absolute;top:0;left:0;right:0;height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;z-index:100;pointer-events:none}.top-bar>*{pointer-events:auto}.upload-btn{width:44px;height:44px;background:#fff;color:#000;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 2px 10px #0000004d;transition:transform .2s}.upload-btn:hover{transform:scale(1.05)}.top-info{background:#0009;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:6px 16px;border-radius:20px;font-size:13px;display:flex;gap:12px;align-items:center;white-space:nowrap}.hash-status{color:var(--text-muted);font-size:12px}.user-info{background:#fff;color:#000;padding:6px 16px;border-radius:20px;font-size:14px;font-weight:500;cursor:pointer;box-shadow:0 2px 10px #0000004d}.bottom-controls{position:absolute;bottom:0;left:0;right:0;height:64px;background:linear-gradient(to top,rgba(0,0,0,.8),transparent);display:flex;align-items:flex-end;padding:0 24px 16px;z-index:100}.controls-row{display:flex;align-items:center;width:100%;gap:16px}.play-btn,.fullscreen-btn{color:#fff;display:flex;align-items:center;justify-content:center;width:32px;height:32px}.play-btn:hover,.fullscreen-btn:hover{color:var(--accent)}.time-display{font-size:13px;color:#ccc;font-variant-numeric:tabular-nums;min-width:90px}.progress-container{flex:1;height:20px;position:relative;display:flex;align-items:center;cursor:pointer}.progress-bg{position:absolute;left:0;right:0;height:4px;background:#fff3;border-radius:2px}.progress-fill{position:absolute;left:0;height:4px;background:var(--accent);border-radius:2px;pointer-events:none;width:0%}.dots-layer{position:absolute;left:0;right:0;height:100%;pointer-events:none}.dot-marker{position:absolute;top:50%;transform:translate(-50%,-50%);width:10px;height:10px;background:var(--accent);border:2px solid #000;border-radius:50%;pointer-events:auto;cursor:pointer;transition:transform .15s}.dot-marker:hover{transform:translate(-50%,-50%) scale(1.3)}.add-marker-btn{position:absolute;top:-12px;transform:translate(-50%);width:20px;height:20px;background:var(--accent);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px #00000080;z-index:10;transition:transform .15s}.add-marker-btn:hover{transform:translate(-50%) scale(1.1)}.add-marker-btn.hidden{display:none}.sidebar{position:absolute;top:72px;right:0;bottom:80px;width:320px;background:var(--panel);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border);border-right:none;border-radius:16px 0 0 16px;z-index:90;display:flex;transition:transform .3s cubic-bezier(.4,0,.2,1);transform:translate(0)}.sidebar.collapsed{transform:translate(100%)}.sidebar-toggle{position:absolute;left:-32px;top:50%;transform:translateY(-50%);width:32px;height:48px;background:var(--panel);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border);border-right:none;border-radius:8px 0 0 8px;color:var(--text-muted);display:flex;align-items:center;justify-content:center;transition:background .2s}.sidebar-toggle:hover{background:#ffffff1a;color:#fff}.sidebar.collapsed .sidebar-toggle svg{transform:rotate(180deg)}.sidebar-inner{flex:1;display:flex;flex-direction:column;overflow:hidden;padding:16px}.sidebar-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.sidebar-header h2{font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px}.badge{background:#ffffff26;padding:2px 8px;border-radius:12px;font-size:12px;color:#ddd}.comment-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:8px}.comment-list::-webkit-scrollbar{width:4px}.comment-list::-webkit-scrollbar-thumb{background:#fff3;border-radius:2px}.thread{background:#0006;border:1px solid var(--border);border-radius:8px;padding:10px;cursor:pointer;transition:all .2s}.thread:hover{border-color:#ffffff4d;background:#0009}.thread.selected{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent);background:#ff8c001a}.thread-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}.head-left{display:flex;align-items:center;gap:10px}.head-right{display:flex;align-items:center;gap:4px;opacity:0;transition:opacity .2s}.thread:hover .head-right,.thread.selected .head-right{opacity:1}.icon-btn{width:22px;height:22px;display:flex;align-items:center;justify-content:center;border-radius:4px;color:var(--text-muted);font-size:14px;transition:all 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#eee;background:#f9f9f9}.tool-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:6px;color:#666}.tool-btn:hover{background:#eee;color:#000}.tool-btn.active{background:#e0e0e0;color:#000;box-shadow:inset 0 1px 3px #0000001a}.divider{width:1px;height:16px;background:#ddd;margin:0 4px}input[type=color]{width:28px;height:28px;padding:0;border:1px solid #ddd;border-radius:4px;cursor:pointer}select{border:1px solid #ddd;border-radius:4px;height:28px;outline:none;font-size:12px}.draft-row{padding:12px;display:flex;flex-direction:column;gap:8px}.draft-time{font-size:12px;color:#ff8c00;font-weight:600}textarea{width:100%;border:1px solid #ddd;border-radius:6px;padding:8px;font-size:13px;resize:none;outline:none;font-family:inherit}textarea:focus{border-color:#ff8c00}.draft-actions{display:flex;justify-content:flex-end;gap:8px}.draft-actions button{padding:6px 12px;border-radius:6px;font-size:13px}.draft-actions .ghost{color:#666}.draft-actions .ghost:hover{background:#eee}.draft-actions .primary{background:#3b82f6;color:#fff}.draft-actions .primary:hover{background:#2563eb}.draft-actions .primary:disabled{background:#93c5fd}.hidden{display:none!important}.reply{font-size:12px;margin-bottom:4px}.reply .author{color:var(--text-muted);margin-right:4px}.reply-body{color:#ccc}.r2r-btn:hover{color:#fff!important;text-decoration:underline}