* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

html {
    font-size: 62.5%;
}

/* 导航 */
.header {
    /* position: sticky; */
    /* top: 10rem; */
    margin: 1rem;
    max-width: 100%;
    position: sticky;
    top: 1rem;
    z-index: 10000;
}

.menu-box {
    width: 100%;
    height: 3rem;
    background-color: #fff;
    align-items: center;
    padding: 0 1rem;
    border-radius: 1rem;
    box-shadow: 0 0.5rem 1.5rem 0 rgba(0, 0, 0, 0.15);
}

.logo {
    width: 5rem;
}

.logo img {
    width: 100%;
    padding-right: 1rem;
}

nav{
    flex: 1;
}
nav ul {
    /* 移除默认内边距（解决左侧缩进问题） */
    padding: 0;
    /* 移除默认外边距（避免与其他元素产生不必要的间距） */
    margin: 0;
    /* 移除项目符号（圆点、数字等） */
    list-style: none;
}
.menu{
    text-decoration: none; /* 移除下划线 */
    color: inherit; /* 继承父元素颜色 */
}
.menu.on,
.menu:hover {
  color: #fe1a17;
}

section{
    margin-top: -6rem;
}
/* banner */
.banner-box{
    background-image: url(../images/banBg.png);
    background-repeat: no-repeat;
    background-position: center;
    background-size: 100% 100%;
}
.banner-content{
    width: 100%;
    padding-top: 5rem;
}
.img-box{
    width: 100vw;
    padding: 0 10%;
}
.img-box img:nth-child(1){
    width: 100%;
    z-index: 10;
    position: relative;
    top: 1rem;
}
.img-box img:nth-child(2){
    width: 100%;
    padding-left: 3%;
    z-index: 10;
    position: relative;
    top: -2rem;
}
.img-box .title{
    width: 100%;
    color: #fff;
    text-align: center;
    font-size: 1.2rem;
    letter-spacing: 0.6rem;
    margin-top: -2rem;
}
.img-box .content{
    width: 80vw;
    color: #fff;
    text-align: center;
    font-size: 0.8rem;
    white-space: nowrap;
    margin-top: 2rem;
    padding-bottom: 2rem;
}

.about-box{
    background-color: #faf8f8;
    background-repeat: no-repeat;
    background-position: center top;
    background-image: url(../images/IndAboutBg.jpg?123);
    background-size: 100% 100%;
    width: 100vw;
}


.a-article p{
    margin-top: 2rem;
}
.a-video{
    height: 6rem;
}
.a-dec{
    margin-top: 2rem
}
.a-dec .y-line {
    background-repeat: no-repeat;
    background-position: center;
    background-image: url(../images/y-line.png);
    background-size: contain;
    width: 0.2rem;
}
.a-dec p{
    color: #b2b2b2;
}

.dev-box{
    background-color: #ededed;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    background-position: center;
    background-image: url(../images/time-bg.jpg);
    position: relative;
}

.slogan span{
    color: #ff1a00;
}
.history{
    flex-wrap: wrap;
    
}
.history-bg{
    background-image: url(../images/time-pic.png);
    background-repeat: no-repeat;
    width: 100vw;
    background-size: 100% 100%;
    height: 15rem;
    position: absolute;
    bottom: 0;
    z-index: 10;
}
.history .item{
    width: 20vw;

}
.history .item:nth-child(1){
    padding-top: 6rem;
}
.history .item:nth-child(2){
    padding-top: 4rem;
}
.history .item:nth-child(3){
    padding-top: 2rem;
}
.history .item:nth-child(5){
    padding-top: 7rem;
    z-index: 15;
}
.history .item:nth-child(6){
    padding-top: 5rem;
    z-index: 15;
}
.history .item:nth-child(7){
    padding-top: 3rem;
    z-index: 15;
}
.history .item:nth-child(8){
    padding-top: 1rem;
    z-index: 15;
}
.item .year{
    background: linear-gradient(#fe5d5d, #fd3e3b);
    border-radius: 0.5rem;
    color: #fff;
    margin-bottom: 0.5rem;
    padding: 0.2rem 0;
    font-size: 0.8rem;
}
.item .details{
    font-size: 0.7rem;
    color: #575757;
}
.item .second-row{
    color: #fff;
}
.item .details .red{
    color: #fd2e2b;
}

.service-box .details{
    font-size: 0.7rem;
}
.IndAdvantagePic{
    position: relative;
}
.IndAdvantagePic img{
    width: 100%;
}
.IndAdvantagePic .tag{
    display: inline-block;
    padding: 0.4rem 0.8rem;
    background-color: #ff4d4f; /* 背景色，可按需修改 */
    color: #fff; /* 文字颜色 */
    font-size: 0.8rem; /* 文字大小 */
    border-radius: 0.2rem; /* 圆角，让标签更圆润 */
    position: relative; /* 为伪元素定位做准备 */
}
.IndAdvantagePic .tag::after {
    /* 小三角通过伪元素实现 */
    content: "";
    position: absolute;
    left: 50%; /* 水平居中 */
    bottom: -0.4rem; /* 让三角在标签底部，调整距离 */
    transform: translateX(-50%);
    border-width: 0.6rem 0.6rem 0 0.6rem; /* 控制三角大小，上边框为 0，左右和下边框有值 */
    border-style: solid; 
    border-color: #ff4d4f transparent transparent transparent; /* 三角颜色与标签背景色一致，其他边透明 */
}
.advantage_tips{
    position: absolute;
}
.advantage_tips_1{
    top: 0;
    left: 20%;
}
.advantage_tips_2{
    top: 0;
    right: 20%;
}
.advantage_tips_3{
    bottom: 30%;
    left: 10%;
}
.advantage_tips_4{
    bottom: 40%;
    right: 10%;
}
.advantage_tips_5{
    bottom: 10%;
    right: 40%;
}
.icon-ani {
    animation: icon-move 1.5s infinite;
}
@keyframes icon-move {
    0% {
      top: 0;
    }
    50% {
      top: 50%;
      transform: translateY(-50%);
    }
    100% {
      top: 0;
    }
}
@-webkit-keyframes icon-move {
    0% {
      top: 0;
    }
    50% {
      top: 50%;
      transform: translateY(-50%);
    }
    100% {
      top: 0;
    }
}

.channel-box .details{
    font-size: 0.7rem;
    margin-bottom: 4rem;
}
.IndCoverageC{
    width: 100%;
    position: relative;
}
.IndCoverageC .circle{
    width: 100%;
    /* margin-top: 4rem; */
    /* padding-top: 4rem; */
}
.circle img{
    width: 100%;
}
.circle-nei{
    width: 30%;
    position: absolute;
    left: 35%;
    top: 0;
}
.circle-nei img{
    width: 100%;
}
.circle-nei h3{
    display: inline-block;
    width: 100%;
    position: absolute;
    top: 40%;
    left: 0;
    color: #fff;
}
.channel-box .borther{
    position: absolute;
    width: 90%;
    height: 90%;
    top: 5%;
    left: 5%;
    border: 1px solid red;
    border-radius: 50%;
}

.circle .ball{
    width: 2rem;
    height: 2rem;
    position: absolute;
}

.partner-box img{
    width: 80%;
}
.partner-box .title{
    margin-bottom: 2rem;
}
.partner-box .p-slogan{
    margin-top: -3rem;
}
.p-slogan span{
    color: #fd2e2b;
}

.IndPartnerPic {
  margin-top: 50px;
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  width: 100%;
}
.IndPartnerBg {
  z-index: 0;
  position: absolute;
  transform-origin: center;
  vertical-align: middle;
}
.IndPartnerBg1 {
  background-repeat: no-repeat;
  background-position: center;
  background-size: 100% 100%;
}
.IndPartnerBg2 {
  background-repeat: no-repeat;
  background-position: center;
  background-size: 100% 100%;
}
.IndPartnerPic {
  width: 100%;
  height: 15rem;
  margin-top: 1rem;
  perspective: 30rem;
}
.IndPartnerBg {
  left: -22%;
  right: -22%;
  top: -50%;
  transform: rotateX(20deg);
}
.IndPartnerBg1 {
  height: 80rem;
  animation: top_bg1 12s linear infinite;
}
.IndPartnerBg2 {
  height: 80rem;
  animation: top_bg2 12s linear infinite;
}
@keyframes top_bg1 {
  0% {
    transform: translateY(0);
  }

  to {
    transform: translateY(-80rem);
  }
}

@keyframes top_bg2 {
  0% {
    transform: translateY(0);
  }

  to {
    transform: translateY(-80rem);
  }
}
.news-box{
    background-repeat: no-repeat;
    background-size: 100% 100%;
    background-position: center;
    background-image: url(../images/IndNewsBg.jpg);
    padding-bottom: 1rem;
}

.IndNewsW{
    padding: 0 8vw;
}
.IndNewsL{
    list-style: none;
}
.IndNewsI{
    background-color: #fff;
    margin-bottom: 2rem;
    padding: 0.5rem 0;
}
.IndNewsI a{
    /* 清除下划线 */
    text-decoration: none;
    /* 清除默认文本颜色（通常是蓝色） */
    color: inherit;
    /* 清除点击时的焦点边框（部分浏览器） */
    outline: none;
    /* 清除点击时的背景高亮（移动端） */
    -webkit-tap-highlight-color: transparent;
}
.IndNewsTime{
    min-width: 5rem;
}
.IndNewsTime h3{
    padding: 0.5rem 0;
}
.IndNewsTime span{
    font-size: 0.8rem;
}
.IndNewsTime i{
    display: block;
    width: 3rem;
    height: 0.2rem;
    background-color: #ff9382;
    margin: 0.3rem auto 0 auto;
}
.IndNewsPic{
    width: 10rem;
    height: 6rem;
    margin-right: 0.5rem;
}
.IndNewsPic img{
    width: 10rem;
    height: 6rem;
}
.IndNewsText{
    flex: 1;
}
.IndNewsText h3{
    font-size: 0.9rem;
    padding: 0.3rem;
}
.IndNewsText p{
    font-size: 0.8rem;
    padding: 0.3rem;
    color: #9a9a9a;
}

.culture-box .item{
    width: 23vw;
    height: 34vw;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    background-position: center;
}
.culture-box .item:nth-child(1){
    background-image: url(../images/Culture-pic01.jpg);
}
.culture-box .item:nth-child(2){
    background-image: url(../images/Culture-pic02.jpg);
}
.culture-box .item:nth-child(3){
    background-image: url(../images/Culture-pic03.jpg);
}
.culture-box .item:nth-child(4){
    background-image: url(../images/Culture-pic04.jpg);
}
.IndCultureIW{
    width: 100%;
    height: 100%;
    text-align: center;
    padding-top: 10%;
    color: #fff;
}
.mask{
    background-color: #000;
    opacity: 0.5;
}
.IndCultureIW span{
    color: #f72e0f;
}
.IndCultureIW h4{
    font-size: 0.6rem;
}
.IndCultureIW i{
    display: block;
    width: 30%;
    height: 0.1rem;
    background-color: #f72e0f;
    margin: 0.2rem auto;
}
.IndCultureIW p{
    font-size: 0.6rem;
    line-height: 1rem;
}

.vision{
    padding: 1vw;
    color: #fff;
}
.vision p{
    font-size: 1rem;
}
.v-img{
    width: 98vw;
    min-height: 24.5vw;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    background-position: center;
    background-image: url(../images/IndVisionBg.jpg);
}
.tit span{
    color: #f72e0f;
}
.tit h2{
    padding-top: 0.5rem;
}

.footer{
    background-color: #1c1818;
    padding: 0.5rem 2rem 2rem 2rem;
}
.copyright img{
    width: 4rem;
}
.copyright p{
    font-size: 0.6rem;
    color: #fff;
}

.address{
    color: #fff;
    padding-top: 1rem;
    flex: 1;
    font-size: 0.6rem;
}
.ft-r{
    width: 20vw;
    height: 20vw;
}
.ft-r img{
    width: 100%;
    height: 100%;
}