:root {
  /* 颜色系统 *//*无需理会报错，代码是可以正确运行 */

--mewx1:#EDEDED;
--mewx2:#F7F7F7;

--mebai:#FFFFFF;

--mehei1:#111827;
--mehei2:#404757;
--mehei3:#707581;
--mehei4:#a5a9b6;
--mehei5:#E7E8EA;
--mehei6:#F6F8FA;

--mezhu1:#4EA540;
--mezhu2:#7ABB56;
--mezhu3:#A5CD74;
--mezhu4:#D5E6AE;
--mezhu5:#F5F9EC;

--meci1:#00A5D6;
--meci2:#1BB3E2;
--meci3:#7BCAEC;
--meci4:#B6DEF2;
--meci5:#EAF6FD;

--mete1:#DA4E52;
--mete2:#E6756E;
--mete3:#EF9995;
--mete4:#F7CFCA;
--mete5:#FEF3F2;

--mefu1:#8A2176;
--mefu2:#BC488E;
--mefu3:#DDA0C3;
--mefu4:#EDCDE0;
--mefu5:#F9F2F7;

--mebu1:#DA4E52;
--mebu2:#E6756E;
--mebu3:#EF9995;
--mebu4:#F7CFCA;
--mebu5:#FEF3F2;


}


.pt-10 {padding-top: 2.5rem;}

/*全局通用：隐藏所有滚动条*/
  html, body {
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  html::-webkit-scrollbar, 
  body::-webkit-scrollbar {
    display: none;
  }
/*全局通用：隐藏所有滚动条*/ 
/*全局通用返回顶部按钮样式*/
.back-to-top {
  position: fixed;
  bottom: 25px;
  right: 25px;
  width: 40px;
  height: 40px;
  background: rgba(0,0,0,0.4);
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 25px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 19999;
  border: none;
  backdrop-filter: blur(4px);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: rgba(0,0,0,0.8);
  transform: translateY(-3px);
}

.back-to-top i {
  font-size: 24px;
  line-height: 1;
}
/*全局通用返回顶部按钮样式*/