/* AI摘要 - 现代简洁设计 */
.cesi-ai-summary-box {
  margin: 20px 0;
  background: #ffffff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.03);
  border: 1px solid #f1f5f9;
  position: relative;
}

/* 左侧渐变装饰线 */
.cesi-ai-summary-box::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, #3b82f6 0%, #8b5cf6 100%);
}

/* 头部 */
.cesi-ai-summary-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: #fafbfc;
  border-bottom: 1px solid #f1f5f9;
}

/* 标题区域 */
.cesi-ai-summary-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* AI 字母图标 */
.cesi-ai-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
  border-radius: 6px;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(59, 130, 246, 0.25);
}

.cesi-ai-text {
  font-size: 11px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.5px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* 标题文字 */
.cesi-ai-title-text {
  font-weight: 600;
  font-size: 14px;
  color: #1e293b;
  letter-spacing: 0.2px;
}

/* 切换按钮 */
.cesi-ai-summary-toggle {
  background: #f1f5f9;
  border: none;
  color: #64748b;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  padding: 0;
}

.cesi-ai-summary-toggle:hover {
  background: #e2e8f0;
  color: #475569;
}

.cesi-ai-summary-toggle svg {
  width: 16px;
  height: 16px;
  transition: transform 0.25s ease;
}

.cesi-ai-summary-box.is-collapsed .cesi-ai-summary-toggle svg {
  transform: rotate(-180deg);
}

/* 内容区域 */
.cesi-ai-summary-body {
  padding: 16px;
  max-height: 600px;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease, opacity 0.2s ease;
}

.cesi-ai-summary-box.is-collapsed .cesi-ai-summary-body {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
}

/* 摘要内容 */
.cesi-ai-summary-content {
  font-size: 14px;
  line-height: 1.8;
  color: #334155;
  letter-spacing: 0.2px;
}

/* 底部信息栏 */
.cesi-ai-summary-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid #f1f5f9;
}

/* 元信息 */
.cesi-ai-summary-meta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cesi-ai-meta-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: #94a3b8;
}

.cesi-ai-meta-item svg {
  width: 14px;
  height: 14px;
  color: #cbd5e1;
}

/* 空状态 */
.cesi-ai-summary-empty {
  text-align: center;
  padding: 32px 20px;
  color: #94a3b8;
}

.cesi-ai-empty-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: #f8fafc;
  border-radius: 12px;
  margin-bottom: 12px;
}

.cesi-ai-empty-icon svg {
  width: 24px;
  height: 24px;
  color: #cbd5e1;
}

.cesi-ai-summary-empty p {
  font-size: 13px;
  margin-bottom: 12px;
}

/* 生成按钮 */
.cesi-ai-summary-generate-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.25);
}

.cesi-ai-summary-generate-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.35);
}

.cesi-ai-summary-generate-btn svg {
  width: 14px;
  height: 14px;
}

/* 加载动画 */
.cesi-ai-summary-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px;
  gap: 8px;
  color: #94a3b8;
  font-size: 13px;
}

.cesi-ai-summary-loading::before {
  content: "";
  width: 16px;
  height: 16px;
  border: 2px solid #e2e8f0;
  border-top-color: #3b82f6;
  border-radius: 50%;
  animation: cesi-ai-summary-spin 0.8s linear infinite;
}

@keyframes cesi-ai-summary-spin {
  to {
    transform: rotate(360deg);
  }
}

/* 错误状态 */
.cesi-ai-summary-error {
  text-align: center;
  padding: 30px 20px;
  color: #ef4444;
}

.cesi-ai-summary-error i {
  font-size: 32px;
  color: #fca5a5;
  margin-bottom: 10px;
  display: block;
}

.cesi-ai-summary-error p {
  color: #dc2626;
  margin-bottom: 15px;
  font-size: 13px;
}

.cesi-ai-summary-retry-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.cesi-ai-summary-retry-btn:hover {
  background: #fee2e2;
  border-color: #fca5a5;
}

/* 深色模式适配 - 系统偏好 */
@media (prefers-color-scheme: dark) {
  .cesi-ai-summary-box {
    background: linear-gradient(145deg, #1e293b 0%, #0f172a 100%);
    border-color: rgba(99, 102, 241, 0.2);
    box-shadow: 
      0 1px 3px rgba(0, 0, 0, 0.3),
      0 4px 20px rgba(0, 0, 0, 0.4),
      inset 0 1px 0 rgba(255, 255, 255, 0.05);
  }

  .cesi-ai-summary-box::before {
    background: linear-gradient(180deg, #60a5fa 0%, #a78bfa 50%, #6366f1 100%);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
  }

  .cesi-ai-summary-head {
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.4) 100%);
    border-color: rgba(99, 102, 241, 0.15);
  }

  .cesi-ai-title-text {
    color: #f8fafc;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  }

  .cesi-ai-summary-content {
    color: #e2e8f0;
    line-height: 1.85;
  }

  .cesi-ai-summary-toggle {
    background: rgba(99, 102, 241, 0.15);
    color: #94a3b8;
    border: 1px solid rgba(99, 102, 241, 0.2);
  }

  .cesi-ai-summary-toggle:hover {
    background: rgba(99, 102, 241, 0.25);
    color: #e2e8f0;
    border-color: rgba(99, 102, 241, 0.35);
  }

  .cesi-ai-summary-body {
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.2) 0%, transparent 100%);
  }

  .cesi-ai-summary-footer {
    border-color: rgba(99, 102, 241, 0.1);
  }

  .cesi-ai-meta-item {
    color: #64748b;
  }

  .cesi-ai-meta-item svg {
    color: #6366f1;
    opacity: 0.7;
  }

  .cesi-ai-empty-icon {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    border: 1px solid rgba(99, 102, 241, 0.15);
  }

  .cesi-ai-empty-icon svg {
    color: #6366f1;
    opacity: 0.6;
  }
}

/* 深色模式适配 - Zibll主题 (.dark-theme) */
.dark-theme .cesi-ai-summary-box {
  background: linear-gradient(145deg, #1e293b 0%, #0f172a 100%);
  border-color: rgba(99, 102, 241, 0.2);
  box-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.3),
    0 4px 20px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.dark-theme .cesi-ai-summary-box::before {
  background: linear-gradient(180deg, #60a5fa 0%, #a78bfa 50%, #6366f1 100%);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
}

.dark-theme .cesi-ai-summary-head {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.4) 100%);
  border-color: rgba(99, 102, 241, 0.15);
}

.dark-theme .cesi-ai-title-text {
  color: #f8fafc;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.dark-theme .cesi-ai-summary-content {
  color: #e2e8f0;
  line-height: 1.85;
}

.dark-theme .cesi-ai-summary-toggle {
  background: rgba(99, 102, 241, 0.15);
  color: #94a3b8;
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.dark-theme .cesi-ai-summary-toggle:hover {
  background: rgba(99, 102, 241, 0.25);
  color: #e2e8f0;
  border-color: rgba(99, 102, 241, 0.35);
}

.dark-theme .cesi-ai-summary-body {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.2) 0%, transparent 100%);
}

.dark-theme .cesi-ai-summary-footer {
  border-color: rgba(99, 102, 241, 0.1);
}

.dark-theme .cesi-ai-meta-item {
  color: #64748b;
}

.dark-theme .cesi-ai-meta-item svg {
  color: #6366f1;
  opacity: 0.7;
}

.dark-theme .cesi-ai-empty-icon {
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  border: 1px solid rgba(99, 102, 241, 0.15);
}

.dark-theme .cesi-ai-empty-icon svg {
  color: #6366f1;
  opacity: 0.6;
}

/* 移动端适配 */
@media (max-width: 640px) {
  .cesi-ai-summary-box {
    margin: 16px 0;
    border-radius: 10px;
  }

  .cesi-ai-summary-head {
    padding: 12px 14px;
  }

  .cesi-ai-icon {
    width: 24px;
    height: 24px;
    border-radius: 5px;
  }

  .cesi-ai-text {
    font-size: 10px;
  }

  .cesi-ai-title-text {
    font-size: 13px;
  }

  .cesi-ai-summary-toggle {
    width: 24px;
    height: 24px;
  }

  .cesi-ai-summary-toggle svg {
    width: 14px;
    height: 14px;
  }

  .cesi-ai-summary-body {
    padding: 14px;
  }

  .cesi-ai-summary-content {
    font-size: 13px;
    line-height: 1.7;
  }

  .cesi-ai-summary-footer {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }

  .cesi-ai-summary-meta {
    flex-wrap: wrap;
    gap: 12px;
  }

  .cesi-ai-meta-item {
    font-size: 11px;
  }

  .cesi-ai-meta-item svg {
    width: 12px;
    height: 12px;
  }
}

/* 超小屏幕适配 */
@media (max-width: 375px) {
  .cesi-ai-summary-box {
    margin: 12px 0;
    border-radius: 8px;
  }

  .cesi-ai-summary-head {
    padding: 10px 12px;
  }

  .cesi-ai-summary-body {
    padding: 12px;
  }

  .cesi-ai-summary-content {
    font-size: 12px;
  }
}

/* 论坛帖子专用样式 */
.forum-article .cesi-ai-summary-box {
  margin: 0 0 20px 0;
}

/* 论坛帖子移动端适配 */
@media (max-width: 640px) {
  .forum-article .cesi-ai-summary-box {
    margin: 0 0 16px 0;
    border-radius: 10px;
  }

  .forum-article .cesi-ai-summary-head {
    padding: 12px 14px;
  }

  .forum-article .cesi-ai-summary-body {
    padding: 14px;
  }

  .forum-article .cesi-ai-summary-content {
    font-size: 13px;
    line-height: 1.7;
  }
}

@media (max-width: 375px) {
  .forum-article .cesi-ai-summary-box {
    margin: 0 0 12px 0;
    border-radius: 8px;
  }

  .forum-article .cesi-ai-summary-head {
    padding: 10px 12px;
  }

  .forum-article .cesi-ai-summary-body {
    padding: 12px;
  }

  .forum-article .cesi-ai-summary-content {
    font-size: 12px;
  }
}