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

html {
  scroll-behavior: smooth; 
}

*{
        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: inline-block;
	width: 100%;
    overflow: visible; /* 设计稿整体缩放时不裁剪页面内容。 */
}

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

#content1{
	position: absolute;
	z-index: 10;
	left: 50%;
	transform: translateX(-50%) ;
	top:100px;
	width: 1100px; 
}

#content1-title{
	width: 176px;
	left:450px;
	position: absolute;
}

#content1-title img {
  display: block;
  width: 100%;
  height: auto;
}

#content1-cards {
  position: relative;
  width: 100%;
  height: 450px;
  top:80px;
}

.card {
  position: absolute;
  transition: all 0.3s ease;
  z-index: 2;
  left: 50%;
  top: 0;
  opacity: 0;
}

.card a {
  display: block; 
}

.card img {
  display: block;
  height: auto;
}


#content1-1 img{
	width:416px;
}

#content1-2 img{
	width:432px;
}

#content1-3 img{
	width:416px;
}

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

@keyframes slideFromCenterLeft {
  from {
    opacity: 0;
    transform: translateX(-50%) rotate(0deg);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateX(-20px) rotate(-10deg);
  }
}

@keyframes slideFromCenterRight {
  from {
    opacity: 0;
    transform: translateX(-50%) rotate(0deg);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateX(220px) rotate(10deg);
  }
}

#content1-1 {
  left: 250px;
  top: 30px;
  transform: rotate(-10deg);
  animation: slideFromCenterLeft 0.8s ease-out 0.3s forwards;
}

#content1-1:hover {
  transform: rotate(-10deg) scale(1.2);
  z-index: 99;
}

#content1-2 {
  left: 50%;
  transform: translateX(-50%) scale(1.1);
  z-index: 3;
  animation: centerFadeIn 0.6s ease-out forwards;
}

#content1-2:hover {
  transform: translateX(-50%) scale(1.2);
  z-index: 99;
}

#content1-3 {
  right: 350px;
  top: 30px;
  transform: rotate(10deg);
  animation: slideFromCenterRight 0.8s ease-out 0.3s forwards;
}
#content1-3:hover {
  transform: rotate(10deg) scale(1.2); 
  z-index: 99;
}


#mcn {
  position: absolute;
  z-index: 10;
  left: 50%;
  transform: translateX(-50%);
  top: 1200px;  
  scroll-margin-top: 100px; 
}

#mcn-title {
  position: absolute;
  left: -700px;
  top: 300px;
  transform: translateY(-50%);
  width: 350px; 
}

#mcn-title img {
  display: block;
  width: 100%;
  height: auto;
}

#mcn-cards {
  position: absolute;
  right: -960px; /* 控制右边界不超过 1920px 设计宽度，避免横向滚动。 */
  top: 350px;
  transform: translateY(-50%);
  display: flex;
  gap: 15px; 
  width: 1200px;
}

.cards {
  position: relative;
  width: 370px;
  transition: all 0.3s ease;
  z-index: 2;
}
.cards a {
  display: block;
}
.cards img {
  display: block;
  width: 200px; 
  height: auto;
}

.cards:hover {
  transform: scale(1.1);
  z-index: 99;
}


#brand {
  position: absolute;
  z-index: 10;
  left: 50%;
  transform: translateX(-50%);
  top: 2200px; 
  scroll-margin-top: 400px; 
}

#brand-title {
  position: absolute;
  left: -700px;
  top: 50%;
  transform: translateY(-50%);  
  width: 350px; 
}

#brand-title img {
  display: block;
  width: 100%;
  height: auto;
}

#brand-cards {
  position: absolute;
  right: -820px; /* 控制 hover 前内容在 1920px 设计宽度内。 */
  top: 50px;
  transform: translateY(-50%);
  display: flex;
  gap: 20px; 
  width:1000px;
}

.card1 {
  position: relative;
  width: 350px;
  transition: all 0.3s ease;
  z-index: 2;
}
.card1 a {
  display: block; 
}
.card1 img {
  display: block;
  width: 350px; 
  height: auto;
}

.card1:hover {
  transform: scale(1.1); 
  z-index: 99;
}


#cross-border {
  position: absolute;
  z-index: 10;
  left: 50%;
  transform: translateX(-50%);
  top: 2600px; 
  scroll-margin-top: 150px; 
}

#cross-border-title {
  position: absolute;
  left: -700px;
  top: 300px;
  transform: translateY(-50%);  
  width: 350px;
}

#cross-border-title img {
  display: block;
  width: 100%;
  height: auto;
}

#cross-border-cards {
  position: absolute;
  right: -820px; /* 控制 hover 前内容在 1920px 设计宽度内。 */
  top: 310px;
  transform: translateY(-50%);
  display: flex;
  gap: 20px; 
  width:1000px;
}

.card2 {
  position: relative;
  width: 1000px;
  transition: all 0.3s ease;
  z-index: 2;
}
.card2 a {
  display: block; 
}
.card2 img {
  display: block;
  width: 1000px; 
  height: auto;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.card2:hover {
  transform: scale(1.1); 
  z-index: 99;
}


#footer {
  width: 100%;
  height: 350px;
  margin-top: -350px;
  background-color: #FFFFFF !important;
  z-index: 9999 !important;
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 100px;
  box-sizing: border-box;

}

#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-top:90px;
	margin-left: -200px;
}

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

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