.nav-one>li{position: relative}.nav-two{z-index: 90;display: none;position: absolute;top: 54px;left: -7px;padding-top: 6px;padding-bottom: 6px;width: 170px;background-color: #ffffff;box-shadow: 1px 0px 10px 0px rgba(50, 54, 65, 0.5)}.nav-two>li{position: relative;border-bottom: 0}.nav-two>li>a{display: block;position: relative;margin-left: 32px;height: 40px;line-height: 40px;font-size: 16px;color: #555;overflow: hidden;text-overflow: ellipsis;white-space: nowrap;transition: all 0.5s}.nav-three,.nav-four{position: absolute;top: -5px;left: 100%;padding-top: 5px;padding-bottom: 6px;display: none;width: 190px;z-index: 66;box-shadow: 1px 0px 10px 0px rgba(50, 54, 65, 0.5);background-color: #ffffff}.nav-three>li,.nav-four>li{position: relative;border-bottom: 0}.nav-three>li>a,.nav-four>li>a{display: block;position: relative;margin-left: 32px;height: 40px;line-height: 40px;font-size: 16px;color: #333333;overflow: hidden;text-overflow: ellipsis;white-space: nowrap;transition: all 0.5s}.nav-two>li>a,.nav-three>li>a,.nav-four>li>a{color: #555}.nav-two>li:hover,.nav-three>li:hover,.nav-four>li:hover{background-color: #ff9c00;border-bottom: 0}.nav-two>li:hover>a,.nav-three>li:hover>a,.nav-four>li:hover>a{color: #222}