.banner{
  width: 100%;
  position:relative;
  overflow:hidden;
}
.scrolldown{
  position:absolute;
  left:50%;
  bottom:4rem;
  transform: translateX(-50%);
  text-align: center;
  color: #fff;
  cursor: pointer;
}
.scrolldown svg{
  display:block;
  margin:0 auto;
  margin-bottom: 0.8rem;
  width: 4rem;
  height: 4rem;
  color: #fff;
}
.scrolldown span{
  color: #fff;
  font-size: 1.8rem;
}
.bannerSwiper{
  width: 100%;
  height: 100%;
  position: relative;
  overflow:hidden;
}
.bannerSwiper .swiper-slide{
  position:relative;
  overflow:hidden;
}
.ban_pic{
  position:absolute;
  top:50%;
  left:50%;
  width: 100%;
  height: 100%;
  transform: translate(-50%,-50%) scale(1.2);
  transition: 2s ease;
}
.ban_pic>img{
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ani-slide .ban_pic{
  transform:translate(-50%,-50%) scale(1);
}
.bannerSwiper .swiper-slide .warpper{
  height: 100%;
  display:flex;
  align-items: center;
}
.ban_text{
  color: #fff;
  position:relative;
  box-sizing: border-box;
  padding:4rem 0;
  max-width:60%;
}
.ban_text h4{
  font-family:sans-serif;
  color: #ffffff14;
  font-weight: bold;
  font-size: clamp(16rem, 22vw, 34rem);
  line-height: 1;
  position: absolute;
  top: -9rem;
  opacity: 0;
  transition: .3s .3s ease;
}
.ban_text p{
  font-size: clamp(1.6rem, 1.4vw, 3rem);
  position:relative;
  top:20px;
  opacity: 0;
  transition: .8s .4s ease;
}
.ban_text h2{
  font-weight: bold;
  line-height: 1.3;
  margin-top: 3rem;
  margin-bottom: 3rem;
  font-size: clamp(2.8rem,4vw,5.6rem);
  position:relative;
  top:20px;
  opacity: 0;
  transition: .8s .5s ease;
}
.ban_text small{
  text-shadow: 0 0.4rem 0.4rem #00000040;
  font-family: "MiSans";
  font-size: clamp(1.6rem,1.4vw,2.4rem);
  font-style: normal;
  font-weight: 500;
  line-height: normal;
  background: linear-gradient(90deg, #FFF 0%, #ffffff99 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position:relative;
  top:20px;
  opacity: 0;
  transition: .8s .6s ease;
}

.ani-slide .ban_text h4{
  opacity: 1;
}
.ani-slide .ban_text p,
.ani-slide .ban_text h2,
.ani-slide .ban_text small{
  opacity: 1;
  top:0;
}
.banner .swiper-pagination .swiper-pagination-current{
  margin-right: 1rem;
}
.banner .swiper-pagination-fraction{
  color: #fff;
  text-align: left;
  font-weight: bold;
  font-size: clamp(1.6rem,3vw,2.2rem);
  bottom: 3.5rem;
  left:4.5vw;
}
.banner .swiper-pagination-total{
  color: #ffffff66;
  margin-left: 1rem;
}
.banner .swiper-button-next{
  width: 14.7rem;
  height: 14.7rem;
  border-radius: 0.8rem;
  background: #ffffff24;
  backdrop-filter: blur(0.25rem);
  top: initial;
  left:initial;
  bottom:4rem;
  right:8rem;
}
.banner .swiper-button-prev{
  width: 10.7rem;
  height: 10.7rem;
  border-radius: 0.8rem;
  background: #009EE7;
  bottom:16rem;
  right:19.6rem;
  top: initial;
  left:initial;
}
.banner .swiper-button-prev svg,
.banner .swiper-button-next svg{
  width: 3.3rem;
  height: 3.46rem;
  color: #fff;
}
.banner .swiper-button-prev:after,
.banner .swiper-button-next:after{
  display:none;
}

/* ===== 全局fixed背景图层，不在模块内部 ===== */
.fixed-bg{
  position: fixed;
  left:0;
  top:0; /* 锁定视口顶部！ */
  width:100%;
  height:100%;
  background-position: center top; /* 图片对齐顶部 */
  background-size:cover;
  z-index:-1;
  opacity:0;
  pointer-events:none;
}

/*公司简介*/
.indexcom_black{
  position: relative;
  z-index: 2;
  border-radius: 2rem;
  background: #ffffffed;
  box-sizing: border-box;
  padding:5rem 7.5rem;
}
.indexcom{
  display:flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom:8.8rem;
}

.indexcom-left{
  width: 46%;
}
.indexcom-left p{
  color: #3b3b3b;
  font-size: clamp(1.4rem,2vw,2rem);
}
.indexcom-left h3{
  color: #3b3b3b;
  font-size: clamp(2rem,2vw,3rem);
  font-weight: bold;
  line-height: 1.2;
}
.indexcom-left h3 span{color: #009ee7;}
.indexcom-right{
  width: 48%;
}
.indexcom-right-cont{
  color: #3b3b3b;
  font-size: clamp(1.8rem,1.4vw,2.6rem);
  line-height: 1.3;
  margin-bottom: 1vw;
  display: -webkit-box; /* 弹性盒子模型 */
  -webkit-box-orient: vertical;/* 垂直排列 */
  -webkit-line-clamp: 3; /* 限制显示3行 */
  overflow: hidden;
}

.indexcom-ul{
  width: 100%;
  display:grid;
  justify-content: space-between;
  grid-template-columns: repeat(4, minmax(0, 35rem));
}
.indexcom-ul li h3{
  color: #3b3b3b;
  font-size: clamp(1.6rem,1.8vw,3.2rem);
  font-weight: bold;
}
.indexcom-ul li h3 span{
  font-size: clamp(2rem,2vw,4.2rem);
}
.indexcom-ul li b{
  width: 5.6rem;
  height: 5.6rem;
  display:flex;
  justify-content: center;
  align-items: center;

}
.indexcom-ul li b img{
  max-width: 100%;
  max-height: 100%;
}
.indexcom-ul li p{
  color: #656565;
  font-size: clamp(1.4rem,1.2vw,2rem);
  line-height: 1.3;
}


/*indexpro*/
.indexprobg{
}
.indexpro{
  display:grid;
  justify-content: space-between;
  grid-template-columns: repeat(4, 1fr);
  gap:4.4rem;
}
.indexpro li{
  background: #F6F6F6;
  border-radius: 2rem;
  overflow:hidden;
  position:relative;
}
.indexpro li:before{
  display:block;
  content: '';
  background: rgba(0, 158, 231, 0.58);
  filter: blur(16rem);
  position:absolute;
  left:50%;
  top:50%;
  transform: translate(-50%,-50%) scale(0.5);
  border-radius: 2rem;
  width: 100%;
  height: 100%;
  transition: 0.4s ease;
  opacity: 0;
}
.indexpro li:hover:before{
  transform: translate(-50%,-50%) scale(1.1);
  opacity: 1;
}
.indexpro a{
  display:block;
  position:relative;
  width: 100%;
  box-sizing: border-box;
  padding:3.2rem;
  text-align: center;
}
.indexpro a>h3{
  color: #505050;
  font-size: clamp(1.8rem,3vw,2.6rem);
  text-align: center;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow:hidden;
  width: 100%;
  font-weight: bold;
  transition: 0.4s 0.1s ease;
}
.indexpro li:hover a h3{
  color: #fff;
}
.indexpro a>b{
  width: 100%;
  height: 20vw;
  border-radius: 1rem;
  background: #FFF;
  margin-top: 2.4rem;
  margin-bottom: 2rem;
}
.indexpro a>.btn{
  margin:0 auto;
}
.indexpro a>.btn>i{
  width: 3.3rem;
  height: 3.3rem;
  background: #009EE7;
  border-radius: 50%;
  display:flex;
  justify-content: center;
  align-items: center;
  margin-left: 1rem;
}
.indexpro a>.btn>i svg{
  color: #fff;
  width: 1.8rem;
  height: 1.8rem;
  margin-left: 0;
}

/*case*/
.casebg_change{
  position:absolute;
  left:0;top:0;width:100%;
  height:100vh; /* 替换JS动态赋值，或者保留setBannerHeight */
}
.casebg_change>b{
  display:block;
  width: 100%;
  height: 100%;
  position:absolute;
  left:0;top:0;
  transform: scale(1.2);
  transform-origin: center;
  opacity: 0;
  transition: opacity 0.2s linear, transform 2s linear 0.1s;
}
.casebg_change>b.active{
  opacity: 1;
  transform: scale(1);
}
.casetit{
  position:absolute!important;
  width: 100%;
  top:5vh;
  z-index: 99;
}
.gallery-pin {
  height: 3000px;//用总长度来控制滑动速度
  position: relative;
}
.gallery-sticky {
  height: 100vh;
  position: sticky;
  top: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: #fafaf7;
}
.gallery-viewport {
  width: 100%;
  overflow: hidden;
}
.gallery-track {
  display: flex;
  gap: 0;
  align-items: center;
  height: 100vh;
}
.gallery-card {
  flex: 0 0 auto;
  width: 500px;
  height: 100%;
  overflow: hidden;
  position: relative;
  cursor: pointer;
}
.gallery-card a{
  display:flex;
  align-items: flex-end;
  width: 100%;
  height: 100%;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.gallery-card a:before{
  display:block;
  content: '';
  position:absolute;
  left:0;
  top:0;
  width: 100%;
  height: 100%;
  background: linear-gradient(0deg, #009ee700 0.06%, #009EE7 99.94%);
  opacity:0;
  transition: .3s ease;
}
.gallery-card a:hover:before{
  opacity:1;
}
.gallery-card a>div{
  position:relative;
  box-sizing: border-box;
  padding: 10vh 2rem;
  padding-bottom: 8vh;
  transition: .3s 0s ease;
}
.gallery-card a:hover>div{
  padding-bottom: 10vh;
}
.gallery-card a h4{
  color: #FFFFFF;
  font-weight: bold;
  line-height: 1;
  font-size: clamp(2rem,2vw,3.4rem);
    transform: translateY(10px);
  transition: .3s 0s ease;
}
.gallery-card a p{
  font-size: clamp(1.2rem,1.6vw,1.4rem);
  margin-top: 1rem;
  margin-bottom: 2rem;
  transform: translateY(30px);
  transition: .3s .1s ease;
}
.gallery-card a>div{
  perspective: 100px;
}
.gallery-card a .btn{
  transform-origin: center bottom;
  transform: translateY(30px);
  opacity: 0;
  transition: .3s .2s ease;
}
.gallery-card a:hover h4,
.gallery-card a:hover p{
  transform: translateY(0);
}
.gallery-card a:hover .btn {
  transform: translateY(0);
  opacity: 1;
}

/*news*/
.swi-news{
  width: 100%;
  padding:20px 0;
}
.news_style{
  display:block;
  width: 100%;
  border-radius: 2rem;
  overflow:hidden;
  background: #F6F6F6;
  position: relative;
  top:0;
  transition: .3s ease;


  opacity:0;
  transform: translateY(32px);
}
.news_style:hover{
  top:-20px
}
.news_style>b{
  width: 100%;
  height: 15vw;
}
.news_text{
  box-sizing: border-box;
  padding:2.4rem;
}
.news_text>p{
  display:flex;
  align-items: center;
}
.news_text>p svg{
  color: #676767;
  width: 1.8rem;
  height: 1.8rem;
}
.news_text>p span{
  color: #676767;
  padding-left: 5px;
  font-size: clamp(1.3rem,calc(1.3rem + 0.26vw),1.8rem);
}
.news_text>h4{
  color: #373737;
  font-weight: bold;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow:hidden;
  margin-bottom: 1rem;
  font-size: clamp(1.8rem,1.4vw,3.4rem);
}
.news_text>small{
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  color: #656565;
  margin-bottom: 2rem;
  font-size: clamp(1.5rem,calc(1.5rem + 0.312vw),2.1rem);
}

.news_text:hover>p svg{
  color: #009EE7;
}
.news_text:hover>p span{
  color: #009EE7;
}

/*留言*/
.indexmsg{
  position: relative;
  overflow: hidden;
}
#indexform{
  width: 110rem;
  border-radius: 1.8rem;
  background: #ffffff29;
  backdrop-filter: blur(3rem);
  box-sizing: border-box;
  padding:6.4rem 4.8rem;
  display:flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  margin:0 auto;
}
.form_left{
  width: 49%;
  display:grid;
  gap: 0 2.2rem;
  grid-template-columns: 1fr 1fr;
}
.form_right{
  width: 49%;
}
.formtext{
  grid-column: 1 / -1;
}
.formtext h2{
  font-weight: bold;
  font-size:clamp(1.8rem, 2vw, 4rem);
  line-height: 1;
  color: #fff;
}
.formtext p{
  color: #ffffff;
  font-size: 1.8rem;
  margin-top: 0.6rem;
  margin-bottom: 0.6rem;
}
.formtext b{
  display:block;
  width: 2.4rem;
  height: 0.4rem;
  background: #009EE7;
  margin-bottom: 1.2rem;
}

#indexform label{
  display:block;
  color: #ffffff;
  font-size: 1.8rem;
  line-height: 3.2;
}
#indexform .form-tr>input{
  height: 5rem;
  line-height: 1;
}
#indexform .form-tr>input,#indexform textarea{
  width: 100%;
  border-radius: 0.6rem;
  background: #ffffff66;
  padding:0.9rem;
  color: #ffffff;
  box-sizing: border-box;
}
#indexform input::placeholder,#indexform textarea::placeholder{
  color: rgba(255, 255, 255, 0.79);
  font-size: 1.4rem;
}
#indexform .code{
  height: 5rem;
  width: 100%;
  display:flex;
  justify-content: space-between;
  align-items: center;
  border-radius: 0.6rem;
  background: #ffffff66;
  overflow:hidden;
}
#indexform .code input{
  width: calc(100% - 12rem);
  height: 100%;
  line-height: 1;
  background:none;
  color: #ffffff;
  padding:0.9rem;
  box-sizing: border-box;
}
#indexform .code .verify{
  width: 12rem;
  height: 100%;
  display:flex;
  justify-content: center;
  align-items: center;
  background:#f3fbfe;
}
#indexform .code .verify img{
  max-height: 100%;
  max-width: 100%;
}
#indexform textarea{
  height: 19rem;
}
#indexform .submit{
  width: 100%;
  display:block;
  height: 5rem;
  line-height: 5rem;
  border-radius: 0.6rem;
  background: #009EE7;
  text-align: center;
  color: #fff;
  font-size: 1.8rem;
  margin-top: 2rem;
}