:root {
  --cuit-blue-dark: #003e8c;
  --cuit-blue-light: #0056b3;
  --cuit-orange: #f39800;}

/* ---- 搜索框整体容器 ---- */
.vsb-search-wrap {
  display: flex;
  justify-content: center;
  padding: 0;
  margin-top:0px ;}

/* ---- 搜索框 ---- */
.vsb-search-box {
  display: flex;
  max-width: 680px;
  width: 100%;
  background: #fff;
  border-radius: 40px;
  padding: 6px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.22);
  align-items: center;}

/* 下拉范围选择 */
.vsb-search-box select {
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  color: #475569;
  padding: 0 8px 0 16px;
  cursor: pointer;
  border-right: 1px solid #e2e8f0;
  height: 36px;
  flex-shrink: 0;
   -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;}

/* 关键词输入框 */
.vsb-search-box input[type="text"] {
  flex: 1;
  border: none;
  padding: 0 16px;
  font-size: 16px;
  outline: none;
  color: #1e293b;
  background: transparent;
  height: 36px;
  min-width: 0;}

/* 搜索按钮 */
.vsb-search-box input[type="submit"],
.vsb-search-box input[type="image"] {
  padding: 10px 28px;
  background: linear-gradient(135deg, #0056b3 0%, #00a2ff 100%);
  color: white;
  border: none;
  border-radius: 30px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s;
  font-size: 15px;
  flex-shrink: 0;
  height: 40px;}

.vsb-search-box input[type="submit"]:hover {
  filter: brightness(1.1);
  transform: scale(1.02);}
/* 容器网格布局 */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 25px;
  padding: 20px 0;}

.book-item-link {
  text-decoration: none !important;
  display: block;}

/* 卡片主体 */
.book-item {
  background: #ffffff;
  border-radius: 12px;
  display: flex;
  height: 165px;
  overflow: hidden;
  border: 1px solid #eef2f6;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);}

.book-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 35px rgba(0, 62, 140, 0.12);
  border-color: #d1d9e6;}

/* 左侧图标侧边栏 */
.icon-side {
  width: 100px;
  height: 100%;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;}

/* 装饰文字 */
.module-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 10px;
  font-weight: 900;
  color: white;
  opacity: 0.6;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 1px 4px;
  border-radius: 2px;}

/* 背景渐变色 */
.bg-training {
  background: linear-gradient(135deg, #4e6ef2, #a5b4fc);}

.bg-tool {
  background: linear-gradient(135deg, #7c3aed, #c4b5fd);}

.bg-case {
  background: linear-gradient(135deg, #10b981, #6ee7b7);}

/* 装饰性背景SVG */
.side-svg {
  position: absolute;
  width: 120px;
  height: 120px;
  right: -25px;
  bottom: -25px;
  opacity: 0.2;
  fill: white;
  transform: rotate(-15deg);}

/* 右侧信息区 */
.book-info {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;}

.book-title {
  font-size: 16px;
  font-weight: bold;
  color: #1e293b;
  line-height: 1.4;
  margin: 0 0 8px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;}

.book-desc {
  font-size: 13px;
  color: #64748b;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;}

/* 底部元数据 */
.book-meta {
  font-size: 12px;
  color: #94a3b8;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid #f8fafc;
  padding-top: 10px;}

.book-meta b {
  color: #003e8c;}

/* 响应式调整 */
@media (max-width: 600px) {
  .books-grid {
    grid-template-columns: 1fr;}
  .book-item {
    height: auto;
    min-height: 140px;}
  .icon-side {
    width: 80px;}
}
/* 容器网格布局 */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 25px;
  padding: 20px 0;}

.book-item-link {
  text-decoration: none !important;
  display: block;}

/* 卡片主体 */
.book-item {
  background: #ffffff;
  border-radius: 12px;
  display: flex;
  height: 165px;
  overflow: hidden;
  border: 1px solid #eef2f6;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);}

.book-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 35px rgba(0, 62, 140, 0.12);
  border-color: #d1d9e6;}

/* 左侧图标侧边栏 */
.icon-side {
  width: 100px;
  height: 100%;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;}

/* 装饰文字 */
.module-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 10px;
  font-weight: 900;
  color: white;
  opacity: 0.6;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 1px 4px;
  border-radius: 2px;}

/* 背景渐变色 */
.bg-training {
  background: linear-gradient(135deg, #4e6ef2, #a5b4fc);}

.bg-tool {
  background: linear-gradient(135deg, #7c3aed, #c4b5fd);}

.bg-case {
  background: linear-gradient(135deg, #10b981, #6ee7b7);}

/* 装饰性背景SVG */
.side-svg {
  position: absolute;
  width: 120px;
  height: 120px;
  right: -25px;
  bottom: -25px;
  opacity: 0.2;
  fill: white;
  transform: rotate(-15deg);}

/* 右侧信息区 */
.book-info {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;}

.book-title {
  font-size: 16px;
  font-weight: bold;
  color: #1e293b;
  line-height: 1.4;
  margin: 0 0 8px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;}

.book-desc {
  font-size: 13px;
  color: #64748b;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;}

/* 底部元数据 */
.book-meta {
  font-size: 12px;
  color: #94a3b8;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid #f8fafc;
  padding-top: 10px;}

.book-meta b {
  color: #003e8c;}

/* 响应式调整 */
@media (max-width: 600px) {
  .books-grid {
    grid-template-columns: 1fr;}
  .book-item {
    height: auto;
    min-height: 140px;}
  .icon-side {
    width: 80px;}
}
/* 容器网格布局 */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 25px;
  padding: 20px 0;}

.book-item-link {
  text-decoration: none !important;
  display: block;}

/* 卡片主体 */
.book-item {
  background: #ffffff;
  border-radius: 12px;
  display: flex;
  height: 165px;
  overflow: hidden;
  border: 1px solid #eef2f6;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);}

.book-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 35px rgba(0, 62, 140, 0.12);
  border-color: #d1d9e6;}

/* 左侧图标侧边栏 */
.icon-side {
  width: 100px;
  height: 100%;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;}

/* 装饰文字 */
.module-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 10px;
  font-weight: 900;
  color: white;
  opacity: 0.6;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 1px 4px;
  border-radius: 2px;}

/* 背景渐变色 */
.bg-training {
  background: linear-gradient(135deg, #4e6ef2, #a5b4fc);}

.bg-tool {
  background: linear-gradient(135deg, #7c3aed, #c4b5fd);}

.bg-case {
  background: linear-gradient(135deg, #10b981, #6ee7b7);}

/* 装饰性背景SVG */
.side-svg {
  position: absolute;
  width: 120px;
  height: 120px;
  right: -25px;
  bottom: -25px;
  opacity: 0.2;
  fill: white;
  transform: rotate(-15deg);}

/* 右侧信息区 */
.book-info {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;}

.book-title {
  font-size: 16px;
  font-weight: bold;
  color: #1e293b;
  line-height: 1.4;
  margin: 0 0 8px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;}

.book-desc {
  font-size: 13px;
  color: #64748b;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;}

/* 底部元数据 */
.book-meta {
  font-size: 12px;
  color: #94a3b8;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid #f8fafc;
  padding-top: 10px;}

.book-meta b {
  color: #003e8c;}

/* 响应式调整 */
@media (max-width: 600px) {
  .books-grid {
    grid-template-columns: 1fr;}
  .book-item {
    height: auto;
    min-height: 140px;}
  .icon-side {
    width: 80px;}
}
/* 容器网格布局 */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 25px;
  padding: 20px 0;}

.book-item-link {
  text-decoration: none !important;
  display: block;}

/* 卡片主体 */
.book-item {
  background: #ffffff;
  border-radius: 12px;
  display: flex;
  height: 165px;
  overflow: hidden;
  border: 1px solid #eef2f6;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);}

.book-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 35px rgba(0, 62, 140, 0.12);
  border-color: #d1d9e6;}

/* 左侧图标侧边栏 */
.icon-side {
  width: 100px;
  height: 100%;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;}

/* 装饰文字 */
.module-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 10px;
  font-weight: 900;
  color: white;
  opacity: 0.6;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 1px 4px;
  border-radius: 2px;}

/* 背景渐变色 */
.bg-training {
  background: linear-gradient(135deg, #4e6ef2, #a5b4fc);}

.bg-tool {
  background: linear-gradient(135deg, #7c3aed, #c4b5fd);}

.bg-case {
  background: linear-gradient(135deg, #10b981, #6ee7b7);}

/* 装饰性背景SVG */
.side-svg {
  position: absolute;
  width: 120px;
  height: 120px;
  right: -25px;
  bottom: -25px;
  opacity: 0.2;
  fill: white;
  transform: rotate(-15deg);}

/* 右侧信息区 */
.book-info {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;}

.book-title {
  font-size: 16px;
  font-weight: bold;
  color: #1e293b;
  line-height: 1.4;
  margin: 0 0 8px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;}

.book-desc {
  font-size: 13px;
  color: #64748b;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;}

/* 底部元数据 */
.book-meta {
  font-size: 12px;
  color: #94a3b8;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid #f8fafc;
  padding-top: 10px;}

.book-meta b {
  color: #003e8c;}

/* 响应式调整 */
@media (max-width: 600px) {
  .books-grid {
    grid-template-columns: 1fr;}
  .book-item {
    height: auto;
    min-height: 140px;}
  .icon-side {
    width: 80px;}
}
/* 容器网格布局 */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 25px;
  padding: 20px 0;}

.book-item-link {
  text-decoration: none !important;
  display: block;}

/* 卡片主体 */
.book-item {
  background: #ffffff;
  border-radius: 12px;
  display: flex;
  height: 165px;
  overflow: hidden;
  border: 1px solid #eef2f6;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);}

.book-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 35px rgba(0, 62, 140, 0.12);
  border-color: #d1d9e6;}

/* 左侧图标侧边栏 */
.icon-side {
  width: 100px;
  height: 100%;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;}

/* 装饰文字 */
.module-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 10px;
  font-weight: 900;
  color: white;
  opacity: 0.6;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 1px 4px;
  border-radius: 2px;}

/* 背景渐变色 */
.bg-training {
  background: linear-gradient(135deg, #4e6ef2, #a5b4fc);}

.bg-tool {
  background: linear-gradient(135deg, #7c3aed, #c4b5fd);}

.bg-case {
  background: linear-gradient(135deg, #10b981, #6ee7b7);}

/* 装饰性背景SVG */
.side-svg {
  position: absolute;
  width: 120px;
  height: 120px;
  right: -25px;
  bottom: -25px;
  opacity: 0.2;
  fill: white;
  transform: rotate(-15deg);}

/* 右侧信息区 */
.book-info {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;}

.book-title {
  font-size: 16px;
  font-weight: bold;
  color: #1e293b;
  line-height: 1.4;
  margin: 0 0 8px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;}

.book-desc {
  font-size: 13px;
  color: #64748b;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;}

/* 底部元数据 */
.book-meta {
  font-size: 12px;
  color: #94a3b8;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid #f8fafc;
  padding-top: 10px;}

.book-meta b {
  color: #003e8c;}

/* 响应式调整 */
@media (max-width: 600px) {
  .books-grid {
    grid-template-columns: 1fr;}
  .book-item {
    height: auto;
    min-height: 140px;}
  .icon-side {
    width: 80px;}
}
/* 容器网格布局 */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 25px;
  padding: 20px 0;}

.book-item-link {
  text-decoration: none !important;
  display: block;}

/* 卡片主体 */
.book-item {
  background: #ffffff;
  border-radius: 12px;
  display: flex;
  height: 165px;
  overflow: hidden;
  border: 1px solid #eef2f6;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);}

.book-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 35px rgba(0, 62, 140, 0.12);
  border-color: #d1d9e6;}

/* 左侧图标侧边栏 */
.icon-side {
  width: 100px;
  height: 100%;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;}

/* 装饰文字 */
.module-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 10px;
  font-weight: 900;
  color: white;
  opacity: 0.6;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 1px 4px;
  border-radius: 2px;}

/* 背景渐变色 */
.bg-training {
  background: linear-gradient(135deg, #4e6ef2, #a5b4fc);}

.bg-tool {
  background: linear-gradient(135deg, #7c3aed, #c4b5fd);}

.bg-case {
  background: linear-gradient(135deg, #10b981, #6ee7b7);}

/* 装饰性背景SVG */
.side-svg {
  position: absolute;
  width: 120px;
  height: 120px;
  right: -25px;
  bottom: -25px;
  opacity: 0.2;
  fill: white;
  transform: rotate(-15deg);}

/* 右侧信息区 */
.book-info {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;}

.book-title {
  font-size: 16px;
  font-weight: bold;
  color: #1e293b;
  line-height: 1.4;
  margin: 0 0 8px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;}

.book-desc {
  font-size: 13px;
  color: #64748b;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;}

/* 底部元数据 */
.book-meta {
  font-size: 12px;
  color: #94a3b8;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid #f8fafc;
  padding-top: 10px;}

.book-meta b {
  color: #003e8c;}

/* 响应式调整 */
@media (max-width: 600px) {
  .books-grid {
    grid-template-columns: 1fr;}
  .book-item {
    height: auto;
    min-height: 140px;}
  .icon-side {
    width: 80px;}
}
/* 容器网格布局 */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 25px;
  padding: 20px 0;}

.book-item-link {
  text-decoration: none !important;
  display: block;}

/* 卡片主体 */
.book-item {
  background: #ffffff;
  border-radius: 12px;
  display: flex;
  height: 165px;
  overflow: hidden;
  border: 1px solid #eef2f6;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);}

.book-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 35px rgba(0, 62, 140, 0.12);
  border-color: #d1d9e6;}

/* 左侧图标侧边栏 */
.icon-side {
  width: 100px;
  height: 100%;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;}

/* 装饰文字 */
.module-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 10px;
  font-weight: 900;
  color: white;
  opacity: 0.6;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 1px 4px;
  border-radius: 2px;}

/* 背景渐变色 */
.bg-training {
  background: linear-gradient(135deg, #4e6ef2, #a5b4fc);}

.bg-tool {
  background: linear-gradient(135deg, #7c3aed, #c4b5fd);}

.bg-case {
  background: linear-gradient(135deg, #10b981, #6ee7b7);}

/* 装饰性背景SVG */
.side-svg {
  position: absolute;
  width: 120px;
  height: 120px;
  right: -25px;
  bottom: -25px;
  opacity: 0.2;
  fill: white;
  transform: rotate(-15deg);}

/* 右侧信息区 */
.book-info {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;}

.book-title {
  font-size: 16px;
  font-weight: bold;
  color: #1e293b;
  line-height: 1.4;
  margin: 0 0 8px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;}

.book-desc {
  font-size: 13px;
  color: #64748b;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;}

/* 底部元数据 */
.book-meta {
  font-size: 12px;
  color: #94a3b8;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid #f8fafc;
  padding-top: 10px;}

.book-meta b {
  color: #003e8c;}

/* 响应式调整 */
@media (max-width: 600px) {
  .books-grid {
    grid-template-columns: 1fr;}
  .book-item {
    height: auto;
    min-height: 140px;}
  .icon-side {
    width: 80px;}
}