:root{--bg-primary: #0a0a0c;--bg-surface: #131318;--bg-surface-2: #1a1a22;--border: #2a2a35;--border-light: #3a3a48;--text-primary: #ffffff;--text-secondary: #a0a0b0;--text-muted: #606070;--accent: #00e68a;--accent-dim: rgba(0, 230, 138, .15);--left-color: #23c47e;--right-color: #ff9f43;--warning: #ff9f43;--info: #4a9eff;--font-sans: "DM Sans", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "Space Mono", "SF Mono", monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.5;overflow-x:hidden}.header{display:flex;justify-content:space-between;align-items:center;padding:12px 24px;background:var(--bg-surface);border-bottom:1px solid var(--border)}.logo{display:flex;align-items:center;gap:10px}.logo-icon{width:32px;height:32px;background:var(--accent);color:var(--bg-primary);border-radius:6px;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:18px}.logo-text{font-weight:600;font-size:16px;letter-spacing:2px}.model-status{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-secondary)}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}.status-dot.loading{background:var(--warning);animation:pulse 1.5s ease-in-out infinite}.status-dot.error{background:#f44}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.main-container{display:grid;grid-template-columns:1fr 380px;height:calc(100vh - 57px);overflow:hidden}.video-section{display:flex;flex-direction:column;background:var(--bg-primary);overflow:hidden}.video-container{flex:1;position:relative;display:flex;align-items:center;justify-content:center;background:#000;overflow:hidden}.upload-zone{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px;cursor:pointer;transition:background .2s}.upload-zone:hover{background:#ffffff05}.upload-zone.drag-over{background:var(--accent-dim);border:2px dashed var(--accent)}.upload-zone.hidden{display:none}.upload-content{text-align:center}.upload-icon{color:var(--text-muted);margin-bottom:16px}.upload-text{font-size:16px;color:var(--text-primary);margin-bottom:8px}.upload-hint{font-size:13px;color:var(--text-muted)}.filming-tips{position:absolute;bottom:24px;left:24px;right:24px;padding:12px 16px;background:var(--bg-surface);border:1px solid 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