/* common */
.flex {
    display: flex;
}
.justify-center {
    justify-content: center; 
}
.align-center {
    align-items: center; 
}
.flex-column {
    flex-direction: column;
}
.justify-between { 
    justify-content: space-between;
}
/* tab */
.tab {
    width: 100%;
    position: fixed; 
    left: 0;
    top: 30px;          
    z-index: 10;
}
.tab .content {
    max-width: 1800px;
    width: 100%;
    height: 100%;
    padding: 0 clamp(20px, 3vw, 0px);
}
.tab .content .logo {
    width: clamp(160px, 15vw, 280px);
    height: auto;                         
    display: block;
    flex-shrink: 0;                      
}
.tab .content .link {
    gap: clamp(16px, 2vw, 30px);
    flex-shrink: 1;                      
}
.tab .content .link img {
    width: clamp(120px, 11vw, 220px);
    height: auto;
    cursor: pointer;
    display: block;
}
@media screen and (max-width: 1280px) {
    .tab {
        height: 72px;              
    }
    .tab .content .logo {
        width: clamp(140px, 14vw, 200px);
    }
    .tab .content .link img {
        width: clamp(110px, 10vw, 180px);
    }
}