/* 知识库手风琴组件样式 */

/* 知识库容器 */
.knowledge-base {
  margin-top: 1.5rem;
}

.knowledge-base .card {
  border: none;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.knowledge-base .card-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 12px 12px 0 0 !important;
  padding: 1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.knowledge-base .card-header h5 {
  color: #fff;
  margin: 0;
  font-weight: 600;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.knowledge-base .card-header .btn-expand-all {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  transition: all 0.2s ease;
}

.knowledge-base .card-header .btn-expand-all:hover {
  background: rgba(255, 255, 255, 0.3);
}

.knowledge-base .card-body {
  padding: 0;
}

/* 手风琴项 */
.knowledge-accordion {
  border: none;
}

.knowledge-item {
  border-bottom: 1px solid #e9ecef;
}

.knowledge-item:last-child {
  border-bottom: none;
}

/* 手风琴标题 */
.knowledge-header {
  padding: 1rem 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: background-color 0.2s ease;
  user-select: none;
}

.knowledge-header:hover {
  background-color: #f8f9fa;
}

.knowledge-header.active {
  background-color: #f0f4ff;
}

/* 图标 */
.knowledge-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.knowledge-icon.basics {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
}

.knowledge-icon.rates {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  color: #fff;
}

.knowledge-icon.rules {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  color: #fff;
}

.knowledge-icon.calc {
  background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
  color: #fff;
}

.knowledge-icon.adjust {
  background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
  color: #fff;
}

/* 标题文字 */
.knowledge-title {
  flex: 1;
  font-weight: 500;
  color: #333;
  font-size: 0.95rem;
}

/* 箭头图标 */
.knowledge-arrow {
  color: #6c757d;
  transition: transform 0.3s ease;
  font-size: 0.9rem;
}

.knowledge-header.active .knowledge-arrow {
  transform: rotate(180deg);
  color: #667eea;
}

/* 内容区域 */
.knowledge-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  background-color: #fafbfc;
}

.knowledge-content.show {
  max-height: 2000px;
  transition: max-height 0.5s ease-in;
}

.knowledge-content-inner {
  padding: 1rem 1.25rem 1.25rem;
  padding-left: 4rem;
  color: #495057;
  line-height: 1.7;
}

/* Markdown 渲染内容样式 */
.knowledge-content-inner h1,
.knowledge-content-inner h2,
.knowledge-content-inner h3,
.knowledge-content-inner h4 {
  margin-top: 1rem;
  margin-bottom: 0.5rem;
  color: #333;
}

.knowledge-content-inner h1 { font-size: 1.25rem; }
.knowledge-content-inner h2 { font-size: 1.1rem; }
.knowledge-content-inner h3 { font-size: 1rem; }
.knowledge-content-inner h4 { font-size: 0.95rem; }

.knowledge-content-inner h1:first-child,
.knowledge-content-inner h2:first-child {
  margin-top: 0;
}

.knowledge-content-inner p {
  margin-bottom: 0.75rem;
}

.knowledge-content-inner table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.75rem 0;
  font-size: 0.9rem;
}

.knowledge-content-inner table th,
.knowledge-content-inner table td {
  border: 1px solid #dee2e6;
  padding: 0.5rem 0.75rem;
  text-align: left;
}

.knowledge-content-inner table th {
  background-color: #e9ecef;
  font-weight: 600;
}

.knowledge-content-inner table tr:nth-child(even) {
  background-color: #f8f9fa;
}

.knowledge-content-inner ul,
.knowledge-content-inner ol {
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
}

.knowledge-content-inner li {
  margin-bottom: 0.25rem;
}

.knowledge-content-inner code {
  background-color: #e9ecef;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85rem;
}

.knowledge-content-inner pre {
  background-color: #282c34;
  color: #abb2bf;
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 0.75rem 0;
}

.knowledge-content-inner pre code {
  background: none;
  padding: 0;
  color: inherit;
}

.knowledge-content-inner blockquote {
  border-left: 4px solid #667eea;
  padding-left: 1rem;
  margin: 0.75rem 0;
  color: #6c757d;
  background-color: #f8f9fa;
  padding: 0.75rem 1rem;
  border-radius: 0 8px 8px 0;
}

.knowledge-content-inner hr {
  border: none;
  border-top: 1px solid #dee2e6;
  margin: 1rem 0;
}

/* 查看完整链接 */
.knowledge-full-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: #667eea;
  font-size: 0.85rem;
  margin-top: 0.75rem;
  text-decoration: none;
  padding: 0.35rem 0.75rem;
  background-color: #fff;
  border-radius: 20px;
  border: 1px solid #667eea;
  transition: all 0.2s ease;
}

.knowledge-full-link:hover {
  background-color: #667eea;
  color: #fff;
}

/* 加载状态 */
.knowledge-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  color: #6c757d;
}

.knowledge-loading .spinner-border {
  width: 1.5rem;
  height: 1.5rem;
  margin-right: 0.75rem;
}

/* 加载失败时的fallback样式 */
.knowledge-fallback {
  text-align: center;
  padding: 1rem;
}

.knowledge-fallback .alert {
  display: inline-block;
  text-align: left;
}

.knowledge-fallback .btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: none;
  padding: 0.5rem 1.25rem;
  border-radius: 20px;
  font-size: 0.9rem;
}

.knowledge-fallback .btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

/* 移动端适配 */
@media (max-width: 576px) {
  .knowledge-base .card-header {
    padding: 0.85rem 1rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .knowledge-base .card-header h5 {
    font-size: 1rem;
  }

  .knowledge-base .card-header .btn-expand-all {
    align-self: flex-end;
  }

  .knowledge-header {
    padding: 0.85rem 1rem;
  }

  .knowledge-icon {
    width: 32px;
    height: 32px;
    font-size: 0.9rem;
  }

  .knowledge-title {
    font-size: 0.9rem;
  }

  .knowledge-content-inner {
    padding: 0.85rem 1rem 1rem;
    padding-left: 1rem;
    font-size: 0.9rem;
  }

  .knowledge-content-inner table {
    font-size: 0.85rem;
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .knowledge-content-inner table th,
  .knowledge-content-inner table td {
    padding: 0.4rem 0.5rem;
  }
}

/* 平板适配 */
@media (min-width: 577px) and (max-width: 768px) {
  .knowledge-content-inner {
    padding-left: 3.5rem;
  }
}