/* ================================================================
   结构化解决方案卡（Student OS Phase 1）
   ================================================================ */
.ai-chat-message--structured {
  max-width: min(96%, 560px);
  width: 100%;
}
.ai-chat-message--structured .ai-chat-message-body {
  gap: 8px;
}
.ai-solution-card {
  background: var(--card, #FFF);
  border: 1px solid var(--border, #E2E8F0);
  border-radius: 14px;
  padding: 14px 16px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  text-align: left;
  width: 100%;
  box-sizing: border-box;
}
.ai-solution-card--brief {
  border-color: color-mix(in srgb, var(--primary) 22%, var(--border) 78%);
}
.ai-solution-summary {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text-primary, #1E293B);
}
.ai-solution-block { margin-top: 10px; }
.ai-solution-block:first-of-type { margin-top: 0; }
.ai-solution-block-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--text-tertiary, #94A3B8);
  margin-bottom: 6px;
}
.ai-solution-steps {
  margin: 0;
  padding-left: 1.2rem;
  font-size: 13px;
  line-height: 1.55;
  color: var(--text-primary, #1E293B);
}
.ai-solution-steps li { margin-bottom: 5px; }
.ai-solution-steps li:last-child { margin-bottom: 0; }
.ai-solution-institutions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.ai-solution-institution-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  color: var(--primary, #0D9488);
  background: var(--primary-lighter, #F0FDFA);
  border: 1px solid color-mix(in srgb, var(--primary) 18%, transparent);
}
.ai-solution-warnings {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 12px;
  line-height: 1.45;
  color: #B45309;
}
.ai-solution-warnings li {
  margin-bottom: 4px;
}
.ai-solution-warnings li:last-child {
  margin-bottom: 0;
}
.ai-solution-template {
  font-size: 12px;
  color: var(--text-secondary, #64748B);
}
.ai-solution-template-label {
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-primary, #1E293B);
}
.ai-solution-template-body {
  margin: 0;
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 12px;
  line-height: 1.5;
  background: var(--bg-secondary, #F8FAFC);
  border-radius: 8px;
  padding: 8px 10px;
}
.ai-solution-template-locked {
  font-size: 12px;
  color: #868e96;
  margin: 6px 0 0;
}
.ai-chat-message--structured .ai-chat-source,
.ai-chat-message--structured .ai-chat-pro-upsell {
  margin-top: 4px;
}
.ai-chat-message--structured .ai-chat-timestamp {
  align-self: flex-end;
  margin-top: 2px;
}

/* ── 答后动态快捷按钮 ── */
.ai-quick-actions {
  margin-top: 8px;
  width: 100%;
}
.ai-quick-actions-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 2px;
  scrollbar-width: none;
}
.ai-quick-actions-scroll::-webkit-scrollbar {
  display: none;
}
.ai-quick-action-btn {
  flex: 0 0 auto;
  max-width: 168px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--border, #E2E8F0);
  background: var(--card, #FFF);
  color: var(--text-primary, #1E293B);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.25;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.ai-quick-action-btn--high {
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border) 65%);
  background: var(--primary-lighter, #F0FDFA);
  color: var(--primary, #0D9488);
}
.ai-quick-action-btn:hover {
  border-color: var(--primary, #0D9488);
}
.ai-quick-action-btn:active {
  transform: scale(0.98);
}

@media (max-width: 480px) {
  .ai-quick-actions-scroll {
    gap: 6px;
    margin: 0 -2px;
    padding-bottom: 4px;
  }
  .ai-quick-action-btn {
    max-width: 148px;
    padding: 6px 10px;
    font-size: 11px;
  }
  .ai-solution-export {
    flex-direction: column;
  }
  .ai-solution-export-btn {
    width: 100%;
  }
}

/* ── 清单导出 ── */
.ai-solution-export {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
  width: 100%;
}
.ai-solution-export-btn {
  flex: 1 1 auto;
  min-width: 0;
  padding: 7px 12px;
  border-radius: 10px;
  border: 1px solid var(--border, #E2E8F0);
  background: var(--card, #FFF);
  color: var(--text-primary, #1E293B);
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
}
.ai-solution-export-btn--primary {
  border-color: var(--primary, #0D9488);
  background: var(--primary, #0D9488);
  color: #fff;
}
.ai-solution-export-btn--locked {
  border-style: dashed;
  color: var(--text-secondary, #64748B);
  background: var(--bg-secondary, #F8FAFC);
}
.ai-solution-export-btn:hover {
  border-color: var(--primary, #0D9488);
}

/* ── 攻略推荐 chips ── */
.ai-suggested-guides {
  margin-top: 10px;
  width: 100%;
}
.ai-suggested-guides-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary, #64748B);
  margin-bottom: 6px;
}
.ai-suggested-guides-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.ai-suggested-guide-chip {
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--border, #E2E8F0);
  background: var(--bg-secondary, #F8FAFC);
  color: var(--text-primary, #1E293B);
  font-size: 11px;
  font-family: inherit;
  cursor: pointer;
}
.ai-suggested-guide-chip:hover {
  border-color: var(--primary, #0D9488);
  color: var(--primary, #0D9488);
}