@font-face {
  font-family: "SiYuanHeiRegular";
	src: url("/assets/fonts/hIpa0eBBs6Lo.woff2"),
  url("/assets/fonts/hIpa0eBBs6Lo.woff");
  font-display: swap;
}
@font-face {
  font-family: "SiYuanHeiMedium";
	src: url("/assets/fonts/D3JRnGWaK0T8.woff2"),
  url("/assets/fonts/D3JRnGWaK0T8.woff");
  font-display: swap;
}
@font-face {
  font-family: "SiYuanHeiLight";
	src: url("/assets/fonts/fnwfyiAsLTYn.woff2"),
  url("/assets/fonts/fnwfyiAsLTYn.woff");
  font-display: swap;
}

.mt10{
  margin-top: 1rem;
}
.mt15{
  margin-top: 1.5rem;
}
.mt20{
  margin-top: 2rem;
}
.mt25{
  margin-top: 2.5rem;
}
.mt30{
  margin-top: 2rem;
}
.mt40{
  margin-top: 4rem;
}
.mt47{
  margin-top: 4.7rem;
}
.mt50{
  margin-top: 5rem;
}
.mt-fu50{
  margin-top: -5rem;
}
.mt60{
  margin-top: 6rem;
}
.mt70{
  margin-top: 7rem;
}
.mt80{
  margin-top: 8rem;
}
.mt90{
  margin-top: 9rem;
}
.mt-fu90{
  margin-top: -9rem;
}
.mt110{
  margin-top: 11rem;
}
.mt120{
  margin-top: 12rem;
}
.mt125{
  margin-top: 12.5rem;
}
.mt130{
  margin-top: 14rem;
}
.mt140{
  margin-top: 14rem;
}
.mt150{
  margin-top: 15rem;
}
.mt160{
  margin-top: 16rem;
}
.mt180{
  margin-top: 18rem;
}
.mt190{
  margin-top: 19rem;
}
.mt200{
  margin-top: 20rem;
}
.mt208{
  margin-top: 20.8rem;
}
.mt228{
  margin-top: 22.8rem;
}
.mt230{
  margin-top: 23rem;
}
.mt300{
  margin-top: 30rem;
}
.mt310{
  margin-top: 31rem;
}
.mt240{
  margin-top: 24rem;
}
.mr60{
  margin-right: 6rem;
}
.ml20{
  margin-left: 2rem;
}
.ml30{
  margin-left: 3rem;
}
.ml40{
  margin-left: 4rem;
}
.ml70{
  margin-left: 7rem;
}
.ml80{
  margin-left: 8rem;
}
.ml130{
  margin-left: 13rem;
}
.ml160{
  margin-left: 16rem;
}
.pl84{
  padding-left: 8.4rem;
}
.wid580{
  max-width: 58rem;
}
.wid620{
  max-width: 62rem;
}
.dropdown-toggle::after {
  display: inline-block;
  width: .6em;
  height: .6em;
  margin: -.3em 0 0 .4em;
  vertical-align: middle;
  content: "";
  border: .2em solid #858788;
  border-width: 0 .15em .15em 0;
  transform: rotateZ(45deg)
}
/* 关键样式：将下拉菜单的触发方式从点击改为悬停 */
.dropdown:hover .dropdown-menu {
  display: block;
  margin-top: 3rem;
  /* 消除与父菜单之间的间隙 */
}

/* 可选：添加动画效果使过渡更平滑 */
.dropdown-menu {
  transition: all 0.3s ease-in-out;
  opacity: 0;
  visibility: hidden;
  display: block;
  transform: translateY(10px);
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
/*右侧漂浮图标*/
.relative-container {
  position: fixed;
  top: 50%;
  right: 0rem;
  transform: translateY(-50%);
  z-index: 100;
  transition: all 0.3s ease;
  width: 7.6rem;
  height: 7.4rem;
  border-top-left-radius: 0.8rem;
  border-bottom-left-radius: 0.8rem;
  background-color: #484848;
  cursor: pointer;
}
.relative-container:hover{
  animation: backgroundChangeRed 0.5s 1;
  animation-fill-mode: forwards;
}
.absolute-image{
  width: 2.5rem;
  height: 2.3rem;
}

/*应用案例特效*/
.card-case {
  position: relative;
  overflow: hidden;
  width: 36rem;
  height: 36rem;
  border-radius: 2rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.card-case:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* 图片样式 */
.card-case-img {
  width: 36rem;
  height: 36rem;
  transition: all 0.5s ease;
}
/*悬停图片*/
.card-category-img{
  width: auto;
  height: 26rem;
}

/* 悬停效果1：文字从底部滑入 */
.effect-1 .card-overlay {
  position: absolute;
  inset: 0;
  /*background: linear-gradient(to top, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.4), transparent);*/
  background-color: #ddd;
  opacity: 0;
  transition: all 0.5s ease;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
}

.effect-1:hover .card-overlay {
  opacity: 1;
}

.effect-1 .card-title,
.effect-1 .card-description {
  transform: translateY(1rem);
  transition: transform 0.3s ease;
  color: #000;
}

.effect-1:hover .card-title,
.effect-1:hover .card-description {
  transform: translateY(0);
}

.effect-1:hover .card-description {
  transition-delay: 0.15s;
}