/* 合作方专区 - 完整样式设计 */


  /* 基础容器样式 */
  .containerb {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
  }

  @media (min-width: 640px) {
    .containerb {
      max-width: 640px;
    }
  }

  @media (min-width: 768px) {
    .containerb {
      max-width: 768px;
    }
  }

  @media (min-width: 1024px) {
    .containerb {
      max-width: 1024px;
    }
  }

  @media (min-width: 1280px) {
    .containerb {
      max-width: 1280px;
    }
  }

  /* 间距样式 */
  .py-8b {
    padding-top: 2rem;
    padding-bottom: 2rem;
  }

  .py-10b {
    padding-top: 2.5rem;
    padding-bottom: 2.5rem;
  }

  .mb-3b {
    margin-bottom: 0.75rem;
  }

  .mb-4b {
    margin-bottom: 1rem;
  }

  .mb-6b {
    margin-bottom: 1.5rem;
  }

  .mb-8b {
    margin-bottom: 2rem;
  }

  .mt-8b {
    margin-top: 2rem;
  }

  .mt-12b {
    margin-top: 3rem;
  }

  /* 文本样式 */
  .text-centerb {
    text-align: center;
  }

  .text-smb {
    font-size: 0.875rem;
  }

  .text-lg {
    font-size: 1.125rem;
    line-height: 1.75rem;
  }

  .text-2xlb {
    font-size: 1.5rem;
    line-height: 2rem;
  }

  .text-3xl {
    font-size: 1.875rem;
    line-height: 2.25rem;
  }

  .text-4xl {
    font-size: 2.25rem;
    line-height: 2.5rem;
  }

  @media (min-width: 768px) {
    .text-3xl {
      font-size: 2.25rem;
      line-height: 2.5rem;
    }
    
    .text-2xlb {
      font-size: 1.875rem;
      line-height: 2.25rem;
    }
  }

  /* 字体权重 */
  .font-boldb {
    font-weight: 700;
  }

  .font-mediumb {
    font-weight: 500;
  }

  /* 颜色样式 */
  .text-gray-300b {
    color: #d1d5db;
  }

  .text-gray-500b {
    color: #6b7280;
  }

  .text-gray-600b {
    color: #4b5563;
  }

  .text-gray-700b {
    color: #374151;
  }

  .text-gray-800b {
    color: #1f2937;
  }

  .text-whiteb {
    color: white;
  }

  .text-primaryb {
    color: #3b82f6;
  }

  /* 背景颜色 */
  .bg-whiteb {
    background-color: white;
  }

  .bg-primaryb {
    background-color: #3b82f6;
  }

  .bg-gradient-to-br {
    background-image: linear-gradient(135deg, var(--tw-gradient-from) 0%, var(--tw-gradient-to) 100%);
  }

  .from-gray-50b {
    --tw-gradient-from: #f9fafb;
  }

  .to-gray-100b {
    --tw-gradient-to: #f3f4f6;
  }

  /* 边框和圆角 */
  .rounded-lgb {
    border-radius: 0.75rem;
  }

  .rounded-xlb {
    border-radius: 1rem;
  }

  .rounded-fullb {
    border-radius: 9999px;
  }

  /* 阴影 */
  .shadow-smb {
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  }

  .shadow-mdb {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  }

  /* 弹性布局 */
  .flexb {
    display: flex;
  }

  .flex-colb {
    flex-direction: column;
  }

  .justify-centerb {
    justify-content: center;
  }

  .justify-betweenb {
    justify-content: space-between;
  }

  .items-centerb {
    align-items: center;
  }

  @media (min-width: 768px) {
    .md\:flex-rowb {
      flex-direction: row;
    }
    
    .md\:w-autob {
      width: auto;
    }
  }

  /* 间距和宽度 */
  .space-x-2b > * + * {
    margin-left: 0.5rem;
  }

  .space-x-6b > * + * {
    margin-left: 1.5rem;
  }

  .p-4b {
    padding: 1rem;
  }

  .p-5b {
    padding: 1.25rem;
  }

  .p-6b {
    padding: 1.5rem;
  }

  .p-8b {
    padding: 2rem;
  }

  .py-2b {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
  }

  .px-4b {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .px-6b {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  .py-3b {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
  }

  .w-full {
    width: 100%;
  }

  /* 溢出处理 */
  .overflow-x-autob {
    overflow-x: auto;
  }

  .whitespace-nowrapb {
    white-space: nowrap;
  }

  /* 合作方头部样式 */


  @media (min-width: 768px) {
    .brand-herob {
      padding: 3rem 2rem;
    }
  }

  /* 面包屑导航 */
  .breadcrumbsb {
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    color: #6b7280;
  }

  /* 统计信息 */
  .brand-statsb {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
  }

  .stat-itemb {
    flex: 1;
    min-width: 100px;
    text-align: center;
  }

  .stat-numberb {
    font-size: 2.25rem;
    line-height: 2.5rem;
    color: #3b82f6;
    margin-bottom: 0.25rem;
  }

  .stat-labelb {
    font-size: 0.875rem;
    color: #6b7280;
  }

  .stat-dividerb {
    width: 1px;
    height: 3rem;
    background-color: #e5e7eb;
  }

  @media (max-width: 768px) {
    .stat-dividerb {
      display: none;
    }
  }

  /* 字母筛选器样式 */
  .letter-filter-wrapperb {
    position: relative;
    scrollbar-width: thin;
    scrollbar-color: #cbd5e1 #f1f5f9;
    overflow-x: auto;
  }

  .letter-filter-wrapperb::-webkit-scrollbar {
    height: 4px;
  }

  .letter-filter-wrapperb::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 2px;
  }

  .letter-filter-wrapperb::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 2px;
  }

  .brand-letter-filterb {
    display: flex;
    padding: 0.5rem 0;
  }

  .letter-itemb {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.5rem;
    background: #f8fafc;
    color: #64748b;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid transparent;
  }

  .letter-itemb:hover {
    background: #e2e8f0;
    transform: translateY(-1px);
  }

  .letter-itemb.active {
    background: #3b82f6;
    color: white;
    border-color: #3b82f6;
  }

  /* 合作方网格布局 */
  .gridb {
    display: grid;
    gap: 1.25rem;
  }

  /* 响应式网格列 */
  .grid-cols-2b {
    grid-template-columns: repeat(2, 1fr);
  }

  @media (min-width: 640px) {
    .sm\:grid-cols-3b {
      grid-template-columns: repeat(3, 1fr);
    }
  }

  @media (min-width: 768px) {
    .md\:grid-cols-4b {
      grid-template-columns: repeat(4, 1fr);
    }
  }

  @media (min-width: 1024px) {
    .lg\:grid-cols-5b {
      grid-template-columns: repeat(5, 1fr);
    }
  }

  @media (min-width: 1280px) {
    .xl\:grid-cols-6b {
      grid-template-columns: repeat(6, 1fr);
    }
  }

  /* 间距 */
  .gap-5b {
    gap: 1.25rem;
  }

  /* 合作方卡片样式 */
  .brand-itembc {
    position: relative;
  }

  .blockb {
    display: block;
  }

  .brand-cardb {
    background: white;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    height: 100%;
    position: relative;
  }

  /* 卡片悬停效果 */
  .transition-allb {
    transition: all 0.3s ease;
  }

  .duration-300b {
    transition-duration: 300ms;
  }

  .duration-500b {
    transition-duration: 500ms;
  }

  .group-hover\:shadow-lgb:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  }

  .group-hover\:-translate-y-1b:hover {
    transform: translateY(-1px);
  }

  .transition-transformb {
    transition: transform 0.5s ease;
  }

  .group-hover\:scale-110b:hover {
    transform: scale(1.1);
  }

  .transition-opacityb {
    transition: opacity 0.3s ease;
  }

  .group-hover\:opacity-100:hover {
    opacity: 1;
  }

  /* Logo容器 */
  .brand-logo-wrapperb {
    position: relative;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    height: 180px;
  }

  .logo-containerb {
    width: 120px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .brand-logob {
    width: 100%;
    height: 100%;
    object-fit: contain;
  }

  /* 品牌信息 */
  .brand-infobc {
    padding: 1rem;
    text-align: center;
    position: relative;
  }

  .brand-nameb {
    font-weight: 500;
    color: #1f2937;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin: 0;
    font-size: 0.875rem;
  }

  /* 覆盖层 */
  .absoluteb {
    position: absolute;
  }

  .inset-0b {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
  }

  .bg-opacity-90b {
    background-opacity: 0.9;
  }

  /* 无数据提示 */
  .no-brandsb {
    background: white;
    border-radius: 0.75rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    padding: 4rem 1rem;
    text-align: center;
    margin-top: 1.5rem;
  }

  .py-16b {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  /* 按钮样式 */
  .btnb {
    display: inline-block;
    text-decoration: none;
    font-weight: 500;
    text-align: center;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    line-height: 1.25;
    border-radius: 9999px;
    transition: all 0.3s ease;
  }

  .btn-primaryb {
    color: white;
    background-color: #3b82f6;
    border-color: #3b82f6;
  }

  .btn-primaryb:hover {
    background-color: #2563eb;
    border-color: #2563eb;
    transform: translateY(-1px);
  }

  /* 合作方专区底部 */
  .brand-showcase-footerb {
    margin-top: 3rem;
    text-align: center;
  }

  /* 响应式优化 */
  @media (max-width: 640px) {
    .py-8b {
      padding-top: 1.5rem;
      padding-bottom: 1.5rem;
    }
    
    .mb-8b {
      margin-bottom: 1.5rem;
    }
    
    .p-8b {
      padding: 1.5rem;
    }
    
    .brand-logo-wrapperb {
      height: 150px;
      padding: 1rem;
    }
    
    .logo-containerb {
      width: 100px;
      height: 60px;
    }
  }

  /* 触摸设备优化 */
  @media (hover: none) and (pointer: coarse) {
    .brand-cardb {
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    
    .brand-cardb:active {
      transform: scale(0.98);
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    }
  }