/* 公共样式文件 */
body{
  position: relative;
}
.page {
  margin: 0 auto;
  max-width: 1920px;
}

/* 头部菜单 */
.header {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translate(-50%, 0);

  display: flex;
  justify-content: space-between;

  padding: 0 208px;
  width: 1186px;
  height: 75px;
  line-height: 75px;

  background: url('https://fftu.oss-accelerate.aliyuncs.com/src/src_sq/images/common/bg-header.png');
  z-index: 999;
}

.menu-list {
  display: flex;
  justify-content: space-between;
}
.menu-list li {
  display: flex;
  align-items: center;
}
.menu-list li + li {
  margin-left: 50px;
}
.menu-list .menu-item {
  display: block;
  width: 64px;
  height: 28px;

  transition: background ease-in .2s;
}
.menu-list .menu-item-1 {
  background-image: url('https://fftu.oss-accelerate.aliyuncs.com/src/src_sq/images/common/bg-menu-1.png');
}
.menu-list .menu-item-1.active,
.menu-list .menu-item-1:hover {
  background-image: url('https://fftu.oss-accelerate.aliyuncs.com/src/src_sq/images/common/bg-menu-1-active.png');
}
.menu-list .menu-item-2 {
  background-image: url('https://fftu.oss-accelerate.aliyuncs.com/src/src_sq/images/common/bg-menu-2.png');
}
.menu-list .menu-item-2.active,
.menu-list .menu-item-2:hover {
  background-image: url('https://fftu.oss-accelerate.aliyuncs.com/src/src_sq/images/common/bg-menu-2-active.png');
}
.menu-list .menu-item-3 {
  background-image: url('https://fftu.oss-accelerate.aliyuncs.com/src/src_sq/images/common/bg-menu-3.png');
}
.menu-list .menu-item-3.active,
.menu-list .menu-item-3:hover {
  background-image: url('https://fftu.oss-accelerate.aliyuncs.com/src/src_sq/images/common/bg-menu-3-active.png');
}
.menu-list .menu-item-4 {
  background-image: url('https://fftu.oss-accelerate.aliyuncs.com/src/src_sq/images/common/bg-menu-4.png');
}
.menu-list .menu-item-4.active,
.menu-list .menu-item-4:hover {
  background-image: url('https://fftu.oss-accelerate.aliyuncs.com/src/src_sq/images/common/bg-menu-4-active.png');
}
.menu-list .menu-item-5 {
  background-image: url('https://fftu.oss-accelerate.aliyuncs.com/src/src_sq/images/common/bg-menu-5.png');
}
.menu-list .menu-item-5.active,
.menu-list .menu-item-5:hover {
  background-image: url('https://fftu.oss-accelerate.aliyuncs.com/src/src_sq/images/common/bg-menu-5-active.png');
}

.page {
  min-width: 1420px;
  height: 100vh;
  background-image: url('https://fftu.oss-accelerate.aliyuncs.com/src/src_sq/images/common/bg-page.png');
  background-size: 100% 100%;
  background-position: center center;
  padding-bottom: 0px;
}
.page-tit {
  text-align: center;
}
footer{
  display: block;
  position: absolute;
  font-size: 13px;
  color: #ccc;
  text-align: center;
  width: 100%;
  bottom: 30px;
}


/*定义滚动条高宽及背景
 高宽分别对应横竖滚动条的尺寸*/
 ::-webkit-scrollbar
 {
	 width:3px;
	 height:3px;
	 border-radius: 3px;
	 background-color:#f5f5f5;
 }
 /*定义滚动条轨道
  内阴影+圆角*/
 ::-webkit-scrollbar-track
 {
	 -webkit-box-shadow:inset 0 0 1px rgb(0, 0, 0);
	 border-radius:3px;
	 background-color:#F5F5F5;
 }
 /*定义滑块
  内阴影+圆角*/
 ::-webkit-scrollbar-thumb
 {
	 border-radius:3px;
	 -webkit-box-shadow:inset 0 0 1px rgb(0, 0, 0);
	 background-color:#3682c9;
 }