.desktop-circle-btn-bottom{width:140vh;height:70vh;border-radius:140vh 140vh 0 0;background-position:center calc(-84vh * 1/6)}.desktop-circle-btn-bottom,.desktop-circle-btn-second{position:absolute;left:50%;transform:translate(-50%);bottom:0;background-repeat:no-repeat;background-size:168vh 84vh;transition:background-image .2s ease}.desktop-circle-btn-second{width:calc(140vh * 32/42);height:calc(70vh * 32/42);border-radius:calc(140vh * 32/42) calc(140vh * 32/42) 0 0;background-position:center calc(-84vh * 1/6 + -70vh * 10/42)}.desktop-circle-btn-third{position:absolute;left:50%;transform:translate(-50%);bottom:0;width:calc(140vh * 23/42);height:calc(70vh * 23/42);border-radius:calc(140vh * 23/42) calc(140vh * 23/42) 0 0;background-repeat:no-repeat;background-size:168vh 84vh;background-position:center calc(-84vh * 1/6 + -70vh * 19/42);transition:background-image .2s ease}.desktop-circle-btn-fourth{position:fixed;left:50%;transform:translateX(-50%);bottom:0;width:46vh;height:23vh;border-radius:46vh 46vh 0 0}.desktop-default-img{background-image:url(/pictures/moduleSelect/circleButtonBeforeClick.png)}.desktop-border-security-img{background-image:url(/pictures/moduleSelect/clickBorderSecurity.png)}.desktop-point-security-img{background-image:url(/pictures/moduleSelect/clickPointSecurity.png)}.desktop-application-security-img{background-image:url(/pictures/moduleSelect/clickApplicationSecurity.png)}.desktop-security-management-img{background-image:url(/pictures/moduleSelect/clickSecurityManagement.png)}.desktop-business-security-img{background-image:url(/pictures/moduleSelect/clickBusinessSecurity.png)}.desktop-data-security-img{background-image:url(/pictures/moduleSelect/clickDataSecurity.png)}.desktop-circle-btn-bottom:hover,.desktop-circle-btn-second:hover,.desktop-circle-btn-third:hover{cursor:pointer}