.scene-setup { max-width: 700px; margin: 0 auto; }
        .mode-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin: 24px 0; }
        .mode-card { border: var(--border-sketch); padding: 20px; text-align: center; cursor: pointer; transition: all 0.15s; background: var(--paper); }
        .mode-card:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-lift); }
        .mode-card.selected { background: var(--ink); color: var(--paper); border-color: var(--ink); }
        .mode-card h3 { margin-bottom: 6px; }
        .mode-card p { font-size: 0.9rem; opacity: 0.8; }
        .mode-card .mode-icon { font-size: 2rem; margin-bottom: 8px; display: block; }

        .chat-container { max-width: 700px; margin: 0 auto; display: none; }
        .chat-header { display: flex; justify-content: space-between; align-items: center; padding: 16px 0; border-bottom: var(--border-sketch); margin-bottom: 16px; }
        .chat-header-info { flex: 1; }
        .chat-scene-title { font-family: var(--font-body); font-weight: 700; font-size: 1.3rem; }
        .chat-characters { font-family: var(--font-hand); font-size: 1rem; color: var(--ink-light); }

        .chat-messages { min-height: 300px; max-height: 500px; overflow-y: auto; padding: 16px 0; }
        .chat-msg { margin-bottom: 16px; display: flex; gap: 12px; }
        .chat-msg-avatar { width: 40px; height: 40px; border-radius: 50%; border: 2px solid var(--ink); display: flex; align-items: center; justify-content: center; font-family: var(--font-body); font-weight: 700; font-size: 1rem; flex-shrink: 0; }
        .chat-msg-user .chat-msg-avatar { background: var(--accent-gold-light); }
        .chat-msg-ai .chat-msg-avatar { background: var(--accent-red-light); }
        .chat-msg-content { flex: 1; }
        .chat-msg-name { font-family: var(--font-hand); font-weight: 700; font-size: 0.9rem; margin-bottom: 2px; }
        .chat-msg-text { font-family: var(--font-read); line-height: 1.6; font-size: 1rem; }
        .chat-msg-text em { font-style: italic; color: var(--ink-faint); }
        .chat-msg-typing { color: var(--ink-faint); font-style: italic; }

        .chat-input-area { display: flex; gap: 8px; padding: 16px 0; border-top: var(--border-light); }
        .chat-input-area textarea { flex: 1; font-family: var(--font-read); font-size: 1rem; padding: 12px; border: var(--border-sketch); border-radius: var(--radius); background: var(--paper); color: var(--ink); resize: none; min-height: 48px; max-height: 120px; }
        .chat-input-area textarea:focus { border-color: var(--accent-gold); outline: none; }

        .chat-actions { display: flex; gap: 8px; flex-wrap: wrap; padding: 8px 0; }

        .suggestion-cards { display: grid; grid-template-columns: 1fr; gap: 12px; margin: 16px 0; }
        .suggestion-card { border: var(--border-light); padding: 16px; cursor: pointer; transition: all 0.15s; }
        .suggestion-card:hover { border-color: var(--accent-gold); background: var(--paper-warm); }
        .suggestion-card h4 { font-family: var(--font-body); font-weight: 700; margin-bottom: 4px; }
        .suggestion-card p { font-size: 0.9rem; color: var(--ink-light); margin-bottom: 6px; }
        .suggestion-card .chars { font-family: var(--font-hand); font-size: 0.9rem; color: var(--accent-red); }

        .technique-answer { background: var(--paper-warm); border: var(--border-light); padding: 20px; margin-top: 16px; white-space: pre-wrap; line-height: 1.7; }

        .feedback-panel { background: var(--paper-warm); border-left: 4px solid var(--accent-gold); padding: 20px; margin: 16px 0; white-space: pre-wrap; line-height: 1.7; font-size: 0.95rem; }

@keyframes libSpin { to { transform: rotate(360deg); } }

@keyframes pulse { 0%,100% { opacity: 1 } 50% { opacity: .3 } }