.md-about-1.md21886 {
  padding-bottom: 1rem;
  overflow: hidden;
  position: relative;
}
.md-about-1.md21886 .layout {
  margin-left: auto;
  margin-right: auto;
  width: 16rem;
  max-width: 92%;
}
.md-about-1.md21886 .h2 {
  line-height: 1;
}
.md-about-1.md21886 .desc {
  line-height: 1.2;
  margin-top: 0.1rem;
}
.md-about-1.md21886 .md {
  position: absolute;
  left: 0;
  top: -1.5rem;
}
.md-about-1.md21886 .box-1 {
  padding-top: 1rem;
  padding-bottom: 0.6rem;
  background-color: rgba(241, 244, 246, 0.6);
}
.md-about-1.md21886 .c-pic {
  width: 48.75%;
}
.md-about-1.md21886 .img {
  padding-top: calc( 500 / 780 * 100%);
}
.md-about-1.md21886 .text {
  width: calc( 760 / 1600 * 100%);
}
.md-about-1.md21886 .intro {
  line-height: 1.4;
  margin-top: 0.3rem;
}
.md-about-1.md21886 .box-2 {
  position: relative;
}
.md-about-1.md21886 .box-2::before {
  content: "";
  position: absolute;
  left: 0%;
  top: 0%;
  width: 100%;
  height: 50%;
  background-color: rgba(241, 244, 246, 0.6);
}
.md-about-1.md21886 .nlist {
  position: relative;
  padding: 0.56rem 0;
  box-shadow: 0px 8px 8px 0px rgba(66, 135, 194, 0.1);
}
.md-about-1.md21886 .nitem {
  flex: 1;
  position: relative;
}
.md-about-1.md21886 .nitem:last-child::before {
  display: none;
}
.md-about-1.md21886 .nitem::before {
  content: "";
  width: 1px;
  height: 0.5rem;
  background-color: #000;
  opacity: 0.15;
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
}
.md-about-1.md21886 .nitem .n11 {
  color: var(--theme);
  line-height: 1;
}
.md-about-1.md21886 .nitem .n12 {
  line-height: calc( 28 / 18 );
  margin-top: 0.2rem;
}
@media screen and (max-width: 900px) {
  .md-about-1.md21886 .c-pic {
    width: 100%;
  }
  .md-about-1.md21886 .text {
    width: 100%;
    margin-top: 0.3rem;
  }
  .md-about-1.md21886 .nlist {
    flex-wrap: wrap;
    padding: 0.3rem 0;
  }
  .md-about-1.md21886 .nitem {
    width: 50%;
    flex: none;
    margin: 0.3rem 0;
  }
  .md-about-1.md21886 .nitem::before {
    display: none;
  }
}

.md-about-2.md21887 {
  padding-top: 0.88rem;
  padding-bottom: 0.77rem;
  overflow: hidden;
  background-color: #f4f6f8;
  position: relative;
}
.md-about-2.md21887 .layout {
  margin-left: auto;
  margin-right: auto;
  width: 16rem;
  max-width: 92%;
}
.md-about-2.md21887 .h2 {
  line-height: 1;
}
.md-about-2.md21887 .desc {
  line-height: 1.2;
  margin-top: 0.1rem;
}
.md-about-2.md21887 .md {
  position: absolute;
  left: 0;
  top: -1.5rem;
}
.md-about-2.md21887 .swiper {
  position: relative;
  width: calc(100% + 0.4rem);
  margin-left: -0.2rem;
}
.md-about-2.md21887 .swiper-container {
  padding: 0.4rem 0.2rem;
}
.md-about-2.md21887 .sw {
  height: auto;
  background-color: #fff;
  cursor: pointer;
  transition: 0.5s;
  margin-bottom: 0.2rem;
}
.md-about-2.md21887 .sw:hover {
  box-shadow: 0px 0.1rem 0.4rem 0px rgba(21, 64, 145, 0.1);
}
.md-about-2.md21887 .top {
  position: relative;
  padding: 0.4rem;
}
.md-about-2.md21887 .img {
  padding-top: calc( 300 / 305 * 100%);
}
.md-about-2.md21887 svg {
  width: 1em;
  height: 1em;
  position: absolute;
  right: 0.3rem;
  bottom: 0.2rem;
  color: #999;
}
.md-about-2.md21887 .text {
  padding: 0.24rem 0.4rem 0.32rem;
  border-top: 1px solid #eee;
}
.md-about-2.md21887 .sbtn {
  position: absolute;
  top: calc(50% - 0.5em);
  width: 1em;
  height: 1em;
  box-shadow: 0 0 0 1px inset rgba(0, 0, 0, 0.1);
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: 0.5s;
  z-index: 30;
}
.md-about-2.md21887 .sbtn:hover {
  background-color: var(--theme);
}
.md-about-2.md21887 .sbtn:hover i {
  filter: brightness(0) invert(1);
}
.md-about-2.md21887 .sbtn i {
  width: 0.2em;
  height: 0.2em;
  border-left: 1px solid #000;
  border-bottom: 1px solid #000;
}
.md-about-2.md21887 .prev {
  left: calc(-1em - 0.2rem);
}
.md-about-2.md21887 .prev i {
  transform: rotate(45deg) translateX(25%);
}
.md-about-2.md21887 .next {
  right: calc(-1em - 0.2rem);
}
.md-about-2.md21887 .next i {
  transform: rotate(-135deg) translateX(25%);
}
.md-about-2.md21887 .swiper-pagination {
  position: static;
  margin-top: 0.2rem;
}
.md-about-2.md21887 .swiper-pagination-bullet {
  width: 1em;
  height: 3px;
  background-color: rgba(0, 0, 0, 0.2);
  margin: 0 0.05rem;
  border-radius: 0;
  opacity: 1;
}
.md-about-2.md21887 .swiper-pagination-bullet-active {
  background-image: linear-gradient(90deg, #054075 0%, var(--theme) 100%);
}
@media screen and (max-width: 900px) {
  .md-about-2.md21887 .prev {
    left: 0;
  }
  .md-about-2.md21887 .next {
    right: 0;
  }
}

.md-about-4.md24865 {
    padding-top: 1.6rem;
    padding-bottom: 0.77rem;
    overflow: hidden;

    position: relative;
}

.md-about-4.md24865 .layout {
    margin-left: auto;
    margin-right: auto;
    width: 16rem;
    max-width: 92%;
}

.md-about-4.md24865 .h2 {
    line-height: 1;
}

.md-about-4.md24865 .box {
    display: flex;

    justify-content: flex-start;
}


.md-about-4.md24865 .left {
    max-width: 8rem;
    max-height: 6.8rem;

}

.md-about-4.md24865 .left img {
    width: 100%;

}

.md-about-4.md24865 .right {
    display: flex;
    flex-direction: column;
    padding-left: 0.5rem;
    gap: 0.5rem;

flex-wrap: wrap;
}

.md-about-4.md24865 .item {
    background-color: rgb(247, 247, 247);

}

.md-about-4.md24865 .item {

    display: inline-flex;
    align-items: center;
    justify-content: center;


    padding: 0.2rem 0.5rem;

    /* 视觉样式 */
    background-color: #f5f5f5;
    border-radius: 0.2rem;
    text-decoration: none;
    color: #333333;

    font-weight: 500;


    transition: all 0.3s ease;
    border: 1px solid transparent;
}

/* 3. 图标样式 */
.md-about-4.md24865 .item img {

    width: auto;
    margin-right: 0.5rem;
    display: block;
}


.md-about-4.md24865 .item:hover {
     transform: scale(1.08); 
    
    /* 2. 增加阴影，增强立体浮起感 */
    box-shadow: 0 0.08rem 0.2rem rgba(0, 0, 0, 0.12);
}

@media screen and (max-width: 750px) {
   /* 1. 核心：将盒子布局改为纵向排列 */
    .md-about-4.md24865 .box {
        flex-direction: column; /* 改为垂直方向，图片在上，按钮在下 */
        align-items: flex-start; /* 确保内容靠左对齐 */
    }

    /* 2. 图片区域：宽度占满，去掉多余限制 */
    .md-about-4.md24865 .left {
        max-width: 100%; /* 图片宽度撑满容器 */
        max-height: none; /* 解除高度限制，防止图片变形 */
        width: 100%;
        margin-bottom: 15px; /* 图片和按钮之间留出一点空隙 */
    }

    /* 3. 按钮区域：改为横向并排 */
    .md-about-4.md24865 .right {
        flex-direction: row; /* 关键：让按钮横向排列 */
        padding-left: 0;     /* 去掉左侧缩进，让按钮顶格 */
        width: 100%;         /* 按钮区域占满宽度 */
        justify-content: flex-start; /* 按钮靠左对齐 (如果想居中显示改为 center) */
        gap: 10px;           /* 两个按钮之间的间距 */
        box-sizing: border-box; /* 确保间距不会撑破宽度 */
    }

    /* 4. 单个按钮样式微调 */
    .md-about-4.md24865 .item {
        flex: 1; /* 让两个按钮平分宽度，看起来更整齐 */
        justify-content: center; /* 确保按钮内的文字和图片居中 */
        margin: 0; /* 清除可能存在的默认外边距 */
    }

}

.md-about-3.md21888 {
  padding-top: 0.88rem;
  padding-bottom: 0.9rem;
  overflow: hidden;
  position: relative;
}
.md-about-3.md21888 .layout {
  margin-left: auto;
  margin-right: auto;
  width: 16rem;
  max-width: 92%;
}
.md-about-3.md21888 .h2 {
  line-height: 1;
}
.md-about-3.md21888 .desc {
  line-height: 1.2;
  margin-top: 0.1rem;
}
.md-about-3.md21888 .md {
  position: absolute;
  left: 0;
  top: -1.5rem;
}
.md-about-3.md21888 .swiper {
  position: relative;
  margin-top: 0.3rem;
}
.md-about-3.md21888 .sw:hover .img {
  transform: scale(1.1);
}
.md-about-3.md21888 .img {
  padding-top: calc( 325 / 520 * 100%);
}
.md-about-3.md21888 .text {
  margin-top: 0.12rem;
}
.md-about-3.md21888 .sbtn {
  position: absolute;
  top: calc(50% - 0.5em);
  width: 1em;
  height: 1em;
  box-shadow: 0 0 0 1px inset rgba(0, 0, 0, 0.1);
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: 0.5s;
  z-index: 30;
}
.md-about-3.md21888 .sbtn:hover {
  background-color: var(--theme);
}
.md-about-3.md21888 .sbtn:hover i {
  filter: brightness(0) invert(1);
}
.md-about-3.md21888 .sbtn i {
  width: 0.2em;
  height: 0.2em;
  border-left: 1px solid #000;
  border-bottom: 1px solid #000;
}
.md-about-3.md21888 .prev {
  left: calc(-1em - 0.4rem);
}
.md-about-3.md21888 .prev i {
  transform: rotate(45deg) translateX(25%);
}
.md-about-3.md21888 .next {
  right: calc(-1em - 0.4rem);
}
.md-about-3.md21888 .next i {
  transform: rotate(-135deg) translateX(25%);
}
@media screen and (max-width: 900px) {
  .md-about-3.md21888 .prev {
    left: 0;
  }
  .md-about-3.md21888 .next {
    right: 0;
  }
  .md-about-3.md21888 .sbtn {
    background-color: #fff;
  }
}