body{
    margin: 0;
    padding: 0;
    background:#F1F1F1;
    padding-top: 12vh;
}

*{
    margin: 0;
    padding: 0;  
}



.banner{
    width: 88%;
    height: 85vh;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-around;
}
.banner-left{
    width: 86%;
    height: 100%;
    /* background: palegoldenrod; */
    padding: 1vw;
    position: relative;
}
.banner-left-video{  
    border-radius: 18px;
    overflow: hidden;
    width: 100%;
    height: 70vh;

}

.banner-left-title{
    width: 50%;
    /* height: 10vh; */
    /* background: palevioletred; */
    position: absolute;
    bottom: 10vw;
    left:5vw;
    color: #fff;
}

.banner-left-title p{
    font-size: 4vw;
    font-weight: bold;
    margin: 0;
    font-weight: 400;
    padding: 0;
}
.banner-left-title p:last-child{
    font-size: 0.8vw;
    color: rgba(255, 255, 255, 0.8);
}

.banner-left-button{
    position: absolute;
    bottom: 10vw;
    right:5vw;
    background: #fff;
    padding: 0.4vw 1vw;
    border-radius: 30px;
    display: flex;
    align-items: center;
  cursor: pointer;
  box-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.1);
  transition: all 0.2s;
}
.banner-left-button:hover{
   transform: scale(1.05);
}

.banner-left-button:hover .right-arrow{
    border-left: 8px solid #3478FD;
 }

 .banner-left-button:hover a{
    color: #3478FD;
 }
.banner-left-button a{
    text-decoration: none;   
    font-size: 0.9vw;
    font-weight: 400;
    color: #1A2B3C;
}
.right-arrow{
    display: inline-block;
    margin-left: 6px;
    width: 0;
    height: 0;
    vertical-align: middle;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-left: 8px solid #1A2B3C;
    transition: transform 0.2s;
    transition: all 0.2s;
}




.banner-right{
    width: 30%;
    height: 100%;
    position: relative;
    /* background: palevioletred; */
}

.banner-right-top,.banner-right-bottom{
    width: 90%;
    height: 40%;
    /* background: paleturquoise; */
}

.banner-right-top img{
 width: auto;
 height: 100%;
}

.banner-right-bottom{
   margin-top: 1vw;
}

.banner-right-bottom img{
    width: auto;
    height: 100%;
}

.right-button-top{
    position: absolute;
    height: 2.5vh;
    top: 24vh;
    right: 4vw;
    bottom: 0;
}

.right-button{
    position: absolute;
    bottom: 10vw;
    right: 4vw;
}


/* -------------------------------- */

.business{
    width: 100%;
    height: 80vh;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    background-image: url(../imgs/home/bg1.svg), url(../imgs/home/bg2.svg);
    background-size: 100% 75%, 80% 90%; /* 每个背景图片的尺寸 */
    background-repeat: no-repeat, no-repeat;  /* 每个背景图片是否平铺 */
    background-position: 100% 180%,222% 180%; /* 每个背景图片的位置 */
  
}

/* business区主内容布局 */
.business-content {
  width: 88%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3vw 4vw;


}

.business-text {
 width: 50%;
 box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: #1A2B3C;
  /* background: palegoldenrod; */
  margin-right: 3vw;
  padding-left: 10%;
}
.business-text h2 {
  width: 60%;
  font-size: 5vw;
  font-weight: 500;
  margin-bottom: 1.2vw;
}
.business-text .subtitle {
    width: 80%;
  font-size: 1vw;
  color: #5B5B5B;
  margin-bottom: 2vw;
  text-align: justify;
  font-weight: 500;
}
.business-btn {
    width: 5vw;
  display: inline-block;
  background: #3478FD;
  color: #fff;
  border-radius: 24px;
  padding: 0.6vw 2vw;
  font-size: 1vw;
  font-weight: 500;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(52,120,253,0.08);
  transition: background 0.2s, box-shadow 0.2s, color 0.2s;
  text-align: center;
  transition: all 0.2s;
}
.business-btn:focus,
.business-btn:hover {
  color: #fff;
  box-shadow: 0 4px 16px rgba(52,120,253,0.18);
  transform: scale(1.05);
}

.business-gallery {
  width: 45%;
  height: 32vw;
  min-height: 420px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  /* background: palegreen; */
}
.gallery-list {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.8s cubic-bezier(.4,0,.2,1);}
.gallery-list img {
  width: auto;
 
  height: 23vw;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 4px 24px rgba(52,120,253,0.10);
  margin-bottom: 2vw;
  background: #f6f8fa;
  transition: box-shadow 0.2s, filter 0.2s;
}
.gallery-list img:last-child {
  margin-bottom: 0;
}

/* 遮罩层 */
.gallery-mask {
  position: absolute;
  left: 0;
  width: 98%;
  height: 48px;
  pointer-events: none;
  z-index: 2;
}
.gallery-mask.top {
  
  
    top: -3px;
    background:
      /* 主扩散渐变 */
      linear-gradient(to bottom, rgba(241,241,241,0.92) 60%, rgba(241,241,241,0.0) 100%),
      /* 两侧椭圆扩散 */
      radial-gradient(ellipse at 20% 0%, rgba(241,241,241,0.5) 0%, rgba(241,241,241,0) 80%),
      radial-gradient(ellipse at 80% 0%, rgba(241,241,241,0.5) 0%, rgba(241,241,241,0) 80%);
    filter: blur(2px);
  }
  
  .gallery-mask.bottom {
   
    bottom: -3px;
    background:
      linear-gradient(to top, rgba(241,241,241,0.92) 60%, rgba(241,241,241,0.0) 100%),
      radial-gradient(ellipse at 20% 100%, rgba(241,241,241,0.5) 0%, rgba(241,241,241,0) 80%),
      radial-gradient(ellipse at 80% 100%, rgba(241,241,241,0.5) 0%, rgba(241,241,241,0) 80%);
    filter: blur(2px);
  }
/* -----------------AI模型------------------------------- */

.aimodel{
    width: 100%;
    min-height: 100vh;
    margin: 0 auto;
    position: relative;
    
     
   
}
.aimodel-bg{
    /* width: 100%; */
  
      /* background: palegoldenrod; */
      margin: 0;

      background:
      linear-gradient(
        to bottom,
        #55BEFF 0%,
        #55BEFF 80%,
        #f1f1f1 100%
      ),
      url(../imgs/home/bg3.svg);
  
    background-size: 100% 100%, 100% 50%;      /* 渐变和图片都铺满 */
    background-repeat: no-repeat, no-repeat;
    background-position: 0 0, 100% 50%;

}

.aimodel-content{
    width: 88%;
    /* height: 100%;    */
    margin: 0 auto;
    padding-top: 8vh;
    /* background: paleturquoise; */
}

.aimodel-top{
    width: 100%;
    height: 58vh;
    display: flex;  
    justify-content: center;
    /* background: palegoldenrod; */
    padding-left: 5vw;
    overflow: hidden;
}

.aimodel-top-left{
    width: 32vw;
    height: 100%;
    /* background: palegoldenrod; */
}

.aimodel-top-left img{
    width: 32vw;
    height: auto;
    object-fit: cover;
}

.aimodel-text{
    width: 40vw;
    height: 100%;
    /* background: palegoldenrod; */
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #1A2B3C;
    /* background: palegoldenrod; */
    margin-right: 1vw;
    padding-left: 6%;
}

.aimodel-text h2{
    width: 33vw;
    font-size: 4.5vw;
    font-weight: 500;
    color: #fff;
    margin: 0;

}

.aimodel-text .subtitle{
    width: 32vw;
    font-size: 0.95vw;   
    margin: 0;
   margin: 5vh 0;
   text-align: justify;
   line-height: 3vh;
   color: #444444;
}

.aimodel-bottom{
    width: 100%;
    height: 100vh;
    /* background: palegreen; */
}

.aimodel-bottom-list{
    width: 100%;
    height: 60vh;
    display: flex;    
    align-items: center;
    justify-content: space-around;
    flex-wrap: wrap;
}

.aimodel-bottom-list li{
    width: 48%;
    height: 35vh;
    background: #FFFFFF;
    margin-top: 5vh;
    list-style: none;
    border-radius: 18px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.list-item-imgBox{
    width: 15vw;
    /* background: palegoldenrod; */
    height: 90%;
    display: flex;
    align-items: center;
    justify-content: left;
}

.list-item-imgBox img{
    width:auto;
    height: 80%;
    
}

.list-item-text{
    width: 20vw;
    height: 100%;
    padding-top: 10vh;
}

.list-item-text h3{
    font-size: 1.5vw;
    font-weight: 500;
    color: #1A2B3C;
}

.list-item-text p{
    font-size: 1.1vw;
    color: #5B5B5B;
    margin-top: 1vh;
}


.section-divider-img {
    position: absolute; /* 或 absolute/fixed，视你的布局而定 */
    display: block;
    width: 100%;        /* 或你想要的宽度 */
    height: auto;
    margin-top: -40px;  /* 让图片上移，覆盖在两个色块交界处 */
    z-index: 10;        /* 保证在背景色之上 */
    pointer-events: none; /* 避免挡住鼠标事件 */
    top: 58%;
    left: 0;
  }


/* 优势区 */

.advantage-bg{
    width: 100%;
    height: 100vh;
    background: #FFFFFF;
    background: linear-gradient(
        to top,
        #f1f1f1 0%,         /* 顶部蓝色 */
        #f1f1f1 80%,        /* 蓝色到底部80% */
        #f1f1f1 100%        /* 渐变到底部的灰色 */
      );
      /* background: palevioletred; */
      margin: 0;      
      /* margin-top: -1vw; */
      box-sizing: border-box;
      overflow: hidden;
      padding-top: 0;

      
}
.advantage-content{
    width: 88%;
    height: 100%;
    margin: 0 auto;
    /* background: palegoldenrod; */
}

.advantage-content h2{
    width: 100%;
   
    font-size: 5vw;
    font-weight: 500;
    color: #1A2B3D;
    text-align: center;
}

.advantage-list{
    width: 100%;
    height: 50vh;
    display: flex;
    align-items: center;
    justify-content: space-around;
    /* background: palegoldenrod; */
}

.advantage-list-item{
    width: 23vw;
    height: 40vh;
    background: #fff;
    list-style: none;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 5px 5px 10px 3px rgba(0, 0, 0, 0.1);
    padding: 1vw;
    box-sizing: border-box;
    text-align: center;
}

.advantage-list-item img{
    width: 17vw;
    height: auto;
}

.advantage-list-item p{
    width: 80%;
    margin: 0 auto;
    font-size: 1vw;
    color: #5B5B5B;
    margin-top: 1vh;
    text-align: left;
}

.advantage-list-item-img{
    width: 70%;
    height: 10vh;
    display: flex;
    align-items: center;
    justify-content: space-around;
    margin: 0 auto;
    padding-left: 2vw;
    margin-top: 5vh;
}

.advantage-list-item-img img{
    width: 16vw;
    height: auto;
}