@charset "utf-8";
/* CSS Document */

*{
        margin: 0;
        padding:0;
		font-family:HarmonyOS Sans SC;
		box-sizing: border-box;
}



#nav,#banner,#content,#footer{
	width:100%;
	margin:0 auto;
}

#nav{
	height:77px;
	/* border-bottom: 2px #CCCCCC solid; */
	background-color: #FFFFFF;
}

#nav_content{
	margin:0 auto;
}

#nav_content img{
	height:85px;
	float:left;
	margin-left:15px;
	margin-top: -8.4px;
}

#nav_content ul{
	list-style-type: none;
	float:right
}

#nav_content li{
	float:left;
}

#nav_content a{
	font-size:17px;
	text-decoration:none;
	color:#242424;
	display:block;
	line-height:35px;
	margin-left:35px;
	margin-right:30px;
	margin-top:20px;
	border-bottom:4px solid transparent;
	transition:all 0.3s ease;
	position: relative; 
}

#nav_content a::after {
  content: "";
  position: absolute;
  left:0;
  bottom:0; 
  width:0;
  height:4px;
  background-color:#cb212d;
  transition:all 0.3s ease;
}

#nav_content a:hover::after {
  width:100%;
}

#background {
	position:relative;
	display: block;
	width: 100%;
    overflow: visible; /* 设计稿整体缩放时不裁剪飞入动画和浮层内容。 */
}

#background img{
	display: block;
	width: 100%;
	height: auto;
}

#feature-panel {
	position: absolute;
	top: 24.5%;
	right: 4%;
	width: 42%;
	display: grid;
	grid-template-rows: repeat(4, auto);
	row-gap: 30px; /* 固定 PC 设计稿间距，避免手机 viewport 的 vw 改变布局。 */
	justify-items: end;
}

#content1{
	position: relative;
	z-index: 10;
	animation: slideInRight 0.8s ease-out forwards;
    opacity: 0; 
	margin-right: 0;
}

@keyframes slideInRight {
  from {
    transform: translateX(50%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

#content1 img{
	display: block;
	width: 569px;
	height: auto;
}

#content1 .img-hover {
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  opacity:0;
  transition:opacity 0.2s ease;
}

#content1:hover .img-hover {
  opacity: 1;
}

#content2{
	position: relative;
	z-index: 20;
	animation: slideInRight 0.8s ease-out 0.3s forwards;
    opacity: 0; 
	justify-self: start;
	margin-left: 34px;
}

@keyframes slideInRight {
  from {
    transform: translateX(50%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

#content2 img{
	display: block;
	width: 569px;
	height: auto;
}

#content2 .img-hover {
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  opacity:0;
  transition:opacity 0.2s ease;
}

#content2:hover .img-hover {
  opacity: 1;
}

#content3{
	position: relative;
	z-index: 20;
	animation: slideInRight 0.8s ease-out 0.6s forwards;
    opacity: 0; 
	margin-right: 15px;
}

@keyframes slideInRight {
  from {
    transform: translateX(50%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

#content3 img{
	display: block;
	width: 569px;
	height: auto;

}

#content3 .img-hover {
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  opacity:0;
  transition:opacity 0.2s ease;
}

#content3:hover .img-hover {
  opacity: 1;
}

#content4{
	position: relative;
	z-index: 20;
	animation: slideInRight 0.8s ease-out 0.6s forwards;
    opacity: 0; 
	justify-self: start;
	margin-left: 58px;
}

@keyframes slideInRight {
  from {
    transform: translateX(50%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

#content4 img{
	display: block;
	width: 569px;
	height: auto;

}

#content4 .img-hover {
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  opacity:0;
  transition:opacity 0.2s ease;
}

#content4:hover .img-hover {
  opacity: 1;
}

#footer {
  width: min(1720px, calc(100% - 80px));
  min-height: 300px;
  background-color: #FFFFFF;
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: start;
  padding: 56px 56px 40px;
  margin: 0 auto;
}

#footer-left {
  min-width: 0;
  max-width: 620px;
}

#footer-left h3 {
  font-size: 24px;
  color: #000000;
  margin-bottom: 20px;
  font-weight: bold;
}

#footer-left p {
  font-size: 15px;
  color: #8f919b;
  line-height: 30px;
}

#footer-center p {
	color:#8f919b;
	font-size: 15px;
	margin: 0;
	white-space: nowrap;
	text-align: center;
}

#footer-center {
  position: absolute;
  left: 50%;
  top: 132px;
  transform: translateX(-50%);
  padding-top: 0;
}

#footer-right {
  text-align: center;
}

#footer-right img {
  width: 137px;
  height: auto;
  margin-bottom: 15px;
  display: block; 
  margin: 0 auto 15px;
}

#footer-right p {
  font-size: 15px;
  color: #000000; 
}