.main-idea { max-width: 760px; margin: 0 auto; }
.main-idea .idea-heading h2 { font-size: 24px; margin: 0 0 6px; color: var(--accent); }
.main-idea .idea-heading p { font-size: 13px; color: var(--muted); margin: 0; }
.main-idea .idea-reading-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 16px 0 20px; padding-bottom: 15px; border-bottom: 1px solid var(--line); }
.main-idea .idea-reading-tools span { margin-right: auto; font-size: 12px; color: var(--muted); }
.main-idea .idea-reading-tools button { font-size: 12px; padding: 6px 12px; }
.main-idea .idea-form-hint { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.main-idea .idea-input-label { display: block; font-size: 13px; font-weight: 600; margin: 16px 0 7px; }
.main-idea .reading-composer textarea { min-height: 80px; padding: 10px 12px; }
.main-idea .input-tools { justify-content: flex-end; }
.main-idea .idea-submit-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; }
.main-idea .idea-submit-row .input-hint { margin: 0; }
.main-idea .idea-original { padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; margin-bottom: 16px; }
.main-idea h3 { font-size: 13px; font-weight: 600; margin: 0 0 10px; }
.main-idea .idea-original p, .main-idea .idea-reference-content p { display: flex; align-items: flex-start; gap: 12px; margin: 8px 0 0; }
.main-idea .idea-label { color: var(--muted); font-size: 12px; flex: 0 0 40px; line-height: 1.9; padding-top: 2px; }
.main-idea .idea-text { white-space: pre-wrap; overflow-wrap: anywhere; font-size: var(--font); }
.main-idea .idea-reference { padding: 18px; border: 1px solid #dce4d3; background: #f0f4e9; border-radius: 14px; }
.main-idea .idea-invitation { font-size: calc(var(--font) * 1.03); line-height: 1.8; margin-bottom: 16px; }
.main-idea .idea-keywords { display: flex; gap: 6px; flex-wrap: wrap; font-size: var(--font); }
.main-idea .idea-keywords > span { display: inline-block; padding: 1px 9px; background: #fffefa; border: 1px solid #dce4d3; border-radius: 5px; }
.main-idea .idea-decision { display: flex; align-items: center; gap: 10px; margin-top: 16px; padding-bottom: 4px; }
.main-idea .idea-decision button { min-width: 110px; }
.main-idea .idea-chat { margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--line); }
.main-idea .idea-transcript { max-height: 380px; overflow-y: auto; overscroll-behavior: contain; scrollbar-gutter: stable; padding-right: 4px; }
.main-idea .idea-transcript:empty { display: none; }
.main-idea .idea-turn { padding-bottom: 18px; }
.main-idea .idea-question { margin-left: 28px; padding: 12px 14px; background: #eeefe8; border-radius: 12px 12px 3px 12px; }
.main-idea .idea-speaker { display: block; font-size: 11px; color: var(--muted); margin-bottom: 4px; }
.main-idea .idea-question > p, .main-idea .idea-reply > p { white-space: pre-wrap; overflow-wrap: anywhere; font-size: var(--font); line-height: 1.8; margin: 0; }
.main-idea .idea-reply { padding: 14px 2px 0; }
.main-idea .idea-evidence { margin-top: 12px; }
.main-idea .idea-evidence blockquote { border-left: 2px solid #adbca0; margin: 8px 0 0; padding: 8px 12px; background: #f5f6ef; border-radius: 0 7px 7px 0; }
.main-idea .idea-evidence blockquote p { white-space: pre-wrap; overflow-wrap: anywhere; font-family: Georgia, 'Microsoft YaHei', serif; font-size: var(--font); line-height: 1.8; margin: 4px 0 0; }
.main-idea .idea-evidence-label { display: flex; align-items: center; gap: 8px; font-size: 11px; color: var(--muted); }
.main-idea .idea-later { color: #795d34; border: 1px solid #e4d8c3; border-radius: 4px; padding: 0 5px; background: #faf4e7; }
.main-idea .idea-turn-retry { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin: 10px 0 0; font-size: 12px; color: var(--muted); }
.main-idea .idea-turn-retry button { font-size: 12px; padding: 6px 10px; }
.main-idea .idea-presets { display: flex; flex-wrap: wrap; gap: 7px; margin: 6px 0 14px; }
.main-idea .idea-presets button { font-size: 12px; padding: 6px 10px; border-radius: 8px; text-align: left; }
.main-idea .idea-chat-composer textarea { min-height: 96px; }
.main-idea .idea-chat .input-hint { margin: 7px 0 0; }
.main-idea .idea-error { color: #8a513a; background: #fbf0e6; border-radius: 8px; font-size: 13px; padding: 10px 12px; margin: 12px 0 0; }
.main-idea .idea-loading { color: var(--muted); padding: 20px 0; font-size: 14px; }
@media (max-width: 760px) {
  .main-idea .idea-heading h2 { font-size: 22px; }
  .main-idea .idea-reading-tools { margin: 13px 0 16px; gap: 6px; }
  .main-idea .idea-reference { padding: 14px; }
  .main-idea .idea-original { padding: 12px; }
  .main-idea .idea-transcript { max-height: 45dvh; }
  .main-idea .idea-question { margin-left: 15px; }
  .main-idea .idea-original p, .main-idea .idea-reference-content p { gap: 8px; }
  .main-idea .idea-submit-row { align-items: flex-end; }
  .main-idea .idea-decision button { flex: 1; min-width: 0; }
}