:root{--ink: #17201d;--muted: #62716b;--line: #d9e2dc;--panel: #ffffff;--canvas: #f4f7f5;--sidebar: #edf3ef;--accent: #245a44;--accent-2: #b7791f;--accent-soft: #e6f1eb;--danger-soft: #f7ece8;font-family:Noto Sans SC,Microsoft YaHei,Segoe UI,system-ui,sans-serif;color:var(--ink);background:var(--canvas);font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;overflow:hidden}button,input,textarea{font:inherit}button{border:1px solid #cbd4ce;background:var(--panel);color:var(--ink);border-radius:6px;min-height:38px;padding:0 12px;display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer}button:hover{border-color:var(--accent)}.app-shell{min-height:100vh;height:100vh;display:flex;flex-direction:column;overflow:hidden}.topbar{height:82px;padding:12px 20px;border-bottom:1px solid var(--line);background:var(--panel);display:flex;align-items:center;justify-content:space-between;gap:16px}.topbar h1,.topbar p,.editor-toolbar 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20px;color:#4f5e58;font-size:13px}.autosave-indicator{position:fixed;right:14px;bottom:8px;color:var(--muted);font-size:12px;pointer-events:none}@media(max-width:900px){body{overflow:auto}.app-shell{height:auto;min-height:100vh;overflow:visible}.topbar,.editor-toolbar{align-items:stretch;flex-direction:column;height:auto}.editor-actions{align-items:stretch;flex-direction:column}.workspace{grid-template-columns:1fr;overflow:visible}.sidebar{border-right:0;border-bottom:1px solid var(--line);max-height:none}.player-panel{grid-template-columns:1fr;grid-template-rows:auto 260px auto}.player-frame,.video-context,.now-cue{grid-column:1;grid-row:auto}.video-context,.context-actions{align-items:stretch;flex-direction:column}.editor-toolbar h2{max-width:100%}.cue-row{grid-template-columns:1fr}.search-box{width:100%}}