.mainpage section.common {
    margin: 7.765vw 9.804vw 8vw 17.647vw;
    z-index: 1;
    position: relative;
}
.mainpage section.common i.picture-1-mobile {
    display: none;
}
.mainpage section.common a {
    color: #000;
    text-decoration: none;
}
.mainpage section.common a:hover {
    color: rgba(0, 137, 242);
    text-decoration: none;
}
.mainpage section.common div.title {
    font-size: 4.118vw;
    line-height: 1.2;
    font-family: "title", serif;
    font-weight: bold;
}
.mainpage section.common div.row {
    display: flex;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}
.mainpage section.common div.col {
    flex: 0 0 auto;
    width: 18.627vw;
    font-family: "main_sans", sans-serif;
    font-size: 1.078vw;
    padding-top: 2.941vw;
}
.mainpage section.common div.col-2 {
    flex: 0 0 auto;
    width: 45.2vw;
    font-family: "main_sans", sans-serif;
    font-size: 1.078vw;
    padding-top: 2.941vw;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.mainpage section.common div.col-2 > h2 {
    font-size: 2vw;
    line-height: 2.5vw;
    font-family: 'title', serif;
}
.mainpage section.common div.col-2 > div {
    font-size: 1.1vw;
    line-height: 1.6vw;
    font-family: 'quotes', serif;
}
.mainpage section.common div.col.cat-picture {
    width: 22.2vw;
    display: flex;
    align-items: center;
    position: relative;
}
.mainpage section.common div.col.cat-picture div {
    position: relative;
}
.mainpage section.common div.col.cat-picture img {
    width: 100%;
    margin: 7vw 0;
}
.mainpage section.common div.col.cat-picture div:before,
.mainpage section.common div.col.cat-picture div:after {
    content: "";
    display: block;
    width: 5vw;
    height: 0.6vw;
    background: center url(../img/cat-wave.svg) no-repeat;
    background-size: contain;
    position: absolute;
    top: 3vw;
}
.mainpage section.common div.col.cat-picture div:before {
    bottom: 3vw;
    top: unset;
}
.mainpage section.common div.col > a {
    display: block;
    margin-bottom: 2.451vw;
}

.mainpage section.other-posts {
    margin: 7.765vw 9.804vw 8vw 17.647vw;
    z-index: 1;
    position: relative;
}
.mainpage section.other-posts h2 {
    font-size: 3vw;
    line-height: 3.6vw;
    font-family: 'title', serif;
}
.mainpage section.other-posts .row {
    display: flex;
    flex-wrap: wrap;
}
.mainpage section.other-posts .row .col {
    flex: 0 0 33%;
    padding-right: 10%;
    box-sizing: border-box;
    font-size: 1vw;
    line-height: 1.7vw;
    padding-bottom: 1vw;
}
.mainpage section.other-posts .row .col a {
    color: #000;
    text-decoration: none;
    font-size: 1.2vw;
    line-height: 1.6vw;
}

.mainpage section.other-posts .row .col.physiology .category a {
    color: #e9987f;
}
.mainpage section.other-posts .row .col.society .category a {
    color: #eee500;
}
.mainpage section.other-posts .row .col.psychology .category a {
    color: #dd2323;
}
.mainpage section.other-posts .row .col.culture .category a {
    color: #ffb85b;
}
.mainpage section.other-posts .row .col.technologies .category a {
    color: #39bcc4;
}
.mainpage section.other-posts .row .col.history .category a {
    color: #007a3d;
}

.mainpage section.physiology .picture-1 {
    position: relative;
}
.mainpage section.physiology .picture-1 i {
    position: absolute;
    display: block;
    width: 21.3vw;
    height: 24.3vw;
    background: center url(../img/cat-physiology-1.jpg) no-repeat;
    background-size: contain;
    bottom: 4vw;
    left: -5vw;
}

.mainpage section.psychology .col.picture-1 {
    position: relative;
    padding-top: 10vw;
}
.mainpage section.psychology .picture-1 i {
    position: absolute;
    display: block;
    width: 23.5vw;
    height: 18.2vw;
    background: center url(../img/cat-phychology-1.jpg) no-repeat;
    background-size: contain;
    top: -10vw;
    left: -5vw;
}
.mainpage section.psychology .center-col {
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 49.51vw;
    position: relative;
    z-index: 2;
    margin-left: -3vw;
}
.mainpage section.psychology .center-col::before {
    content: "";
    display: block;
    position: absolute;
    width: 11.176vw;
    height: 9.608vw;
    z-index: 0;
    background: center center url(../img/ball-orange.png) no-repeat;
    background-size: contain;
    top: -3vw;
    right: 0.49vw;
    animation: tictac 5s linear infinite;
}
.mainpage section.psychology .center-col a.subtitle {
    font-family: "title", sans-serif;
    font-size: 4.104vw;
    line-height: 7.843vw;
    font-weight: bold;
    margin-bottom: 1.961vw;
    margin-top: -3.431vw;
    z-index: 2;
    position: relative;
}
.mainpage section.psychology .center-col a.subtitle::before,
.mainpage section.psychology .center-col a.subtitle::after {
    content: "";
    background: center center url(../img/wave-black.png) no-repeat;
    background-size: contain;
    display: inline-block;
    width: 3.922vw;
    height: 2.451vw;
    position: absolute;
    top: 2.941vw;
}
.mainpage section.psychology .center-col a.subtitle::before {
    left: -0.98vw;
}
.mainpage section.psychology .center-col a.subtitle::after {
    right: -1.176vw;
}
.mainpage section.psychology .center-col a.info {
    font-family: "quotes", sans-serif;
    font-size: 1.078vw;
    margin-bottom: 0.49vw;
    z-index: 1;
}
.mainpage section.psychology .center-col span.source {
    font-family: "main_sans", sans-serif;
    font-size: 0.784vw;
    color: #6d6d6d;
}
.mainpage section.psychology .center-col span.source>a {
    color: #0089f2;
}

.mainpage section.culture .center-col {
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 24.51vw;
    position: relative;
    z-index: 2;
    margin-left: -3vw;
    margin-top: 8vw;
}
.mainpage section.culture .center-col::before {
    content: "";
    display: block;
    position: absolute;
    width: 11.176vw;
    height: 9.608vw;
    z-index: 0;
    background: center center url(../img/ball-orange.png) no-repeat;
    background-size: contain;
    top: -3vw;
    right: 0.49vw;
    animation: tictac 5s linear infinite;
}
.mainpage section.culture .center-col a.subtitle {
    font-family: "title", sans-serif;
    font-size: 9.804vw;
    line-height: 7.843vw;
    font-weight: bold;
    margin-bottom: 1.961vw;
    margin-top: -3.431vw;
    z-index: 2;
    position: relative;
}
.mainpage section.culture .center-col a.subtitle::before,
.mainpage section.culture .center-col a.subtitle::after {
    content: "";
    background: center center url(../img/wave-black.png) no-repeat;
    background-size: contain;
    display: inline-block;
    width: 3.922vw;
    height: 2.451vw;
    position: absolute;
    top: 2.941vw;
}
.mainpage section.culture .center-col a.subtitle::before {
    left: -0.98vw;
}
.mainpage section.culture .center-col a.subtitle::after {
    right: -1.176vw;
}
.mainpage section.culture .center-col a.info {
    font-family: "quotes", sans-serif;
    font-size: 1.078vw;
    margin-bottom: 0.49vw;
    z-index: 1;
}
.mainpage section.culture .center-col span.source {
    font-family: "main_sans", sans-serif;
    font-size: 0.784vw;
    color: #6d6d6d;
}
.mainpage section.culture .center-col span.source>a {
    color: #0089f2;
}

.mainpage section.culture .col.picture-1 {
    position: relative;
    padding-top: 10vw;
}
.mainpage section.culture .picture-1 i {
    position: absolute;
    display: block;
    width: 22.2vw;
    height: 17.7vw;
    background: center url(../img/cat-culture-1.jpg) no-repeat;
    background-size: contain;
    top: -9vw;
    left: -5vw;
}

.mainpage section.technologies .col.picture-1 {
    position: relative;
    padding-top: 10vw;
}
.mainpage section.technologies .picture-1 i {
    position: absolute;
    display: block;
    width: 18vw;
    height: 20vw;
    background: center url(../img/cat-technologies-1.jpg) no-repeat;
    background-size: contain;
    top: -12vw;
    left: -1.9vw;
}

.mainpage section.history .col.picture-1 {
    position: relative;
    padding-top: 10vw;
}
.mainpage section.history .picture-1 i {
    position: absolute;
    display: block;
    width: 24.3vw;
    height: 15.8vw;
    background: center url(../img/cat-history-1.jpg) no-repeat;
    background-size: contain;
    top: -8vw;
    left: -4vw;
}

.mainpage section.society .col.picture-1 {
    position: relative;
    padding-top: 10vw;
}
.mainpage section.society .picture-1 i {
    position: absolute;
    display: block;
    width: 26.2vw;
    height: 18.5vw;
    background: center url(../img/cat-society-1.jpg) no-repeat;
    background-size: contain;
    top: -10vw;
    left: -4vw;
}

@media only screen and (max-width: 480px) {
    .mainpage section.common {
        margin: 10vw 4vw 5vw 4vw;
    }
    .mainpage section.common i.picture-1-mobile {
        display: block;
        margin: 0 auto;
    }
    .mainpage section.common .picture-1 i {
        display: none !important;
    }
    .mainpage section.common div.title {
        font-size: 8vw;
        line-height: 1.2;
        margin-top: 5vw;
    }
    .mainpage section.common div.row {
        flex-direction: column;
    }
    .mainpage section.common div.col {
        width: unset;
        font-size: 4vw;
        padding-top: 4vw;
    }
    .mainpage section.common div.col-2 {
        width: unset;
        font-size: 4vw;
        padding-top: 4vw;
    }
    .mainpage section.common div.col-2 > h2 {
        font-size: 6vw;
        line-height: 7.5vw;
        margin: 0;
    }
    .mainpage section.common div.col-2 > div {
        font-size: 4vw;
        line-height: 5vw;
        padding-bottom: 5vw;
    }
    .mainpage section.common div.col.cat-picture {
        width: 80vw;
    }
    .mainpage section.common div.col.cat-picture img {
        margin: 5vw 0 0 0;
    }
    .mainpage section.common div.col.cat-picture div:before,
    .mainpage section.common div.col.cat-picture div:after {
        content: "";
        display: block;
        width: 10vw;
        height: 1.2vw;
        top: -5vw;
        left: 0;
    }
    .mainpage section.common div.col.cat-picture div:before {
        display: none;
    }
    .mainpage section.common div.col-2:after {
        content: "";
        background: center center url(../img/cat-wave.svg) no-repeat;
        background-size: contain;
        width: 10vw;
        height: 1.2vw;
        position: absolute;
        bottom: 2vw;
    }
    .mainpage section.common div.col > a {
        margin-bottom: 5vw;
    }
    
    .mainpage section.other-posts {
        margin: 10vw 4vw;
    }
    .mainpage section.other-posts h2 {
        font-size: 8vw;
        line-height: 10vw;
    }
    .mainpage section.other-posts .row {
        flex-direction: column;
    }
    .mainpage section.other-posts .row .col {
        flex: 0 0 auto;
        padding-right: 0;
        font-size: 4vw;
        line-height: 5vw;
        padding-bottom: 2vw;
    }
    .mainpage section.other-posts .row .col a {
        font-size: 4.5vw;
        line-height: 6vw;
    }
    .mainpage section.physiology i.picture-1-mobile {
        width: 83.2vw;
        height: 97.2vw;
        background: center url(../img/cat-physiology-1.jpg) no-repeat;
        background-size: contain;
    }
    
    .mainpage section.psychology i.picture-1-mobile {
        width: 92vw;
        height: 72vw;
        background: center url(../img/cat-phychology-1.jpg) no-repeat;
        background-size: contain;
    }
    .mainpage section.psychology .center-col {
        width: 72vw;
        margin: 15vw auto 0 auto;
    }
    .mainpage section.psychology .center-col::before {
        width: 33vw;
        height: 28vw;
        top: -19vw;
        right: 1.5vw;
    }
    .mainpage section.psychology .center-col a.subtitle {
        font-size: 29vw;
        line-height: 23vw;
        margin-bottom: 5.5vw;
        margin-top: -10vw;
    }
    .mainpage section.psychology .center-col a.subtitle::before,
    .mainpage section.psychology .center-col a.subtitle::after {
        width: 12vw;
        height: 7.5vw;
        top: 9vw;
    }
    .mainpage section.psychology .center-col a.subtitle::before {
        left: -3vw;
    }
    .mainpage section.psychology .center-col a.subtitle::after {
        right: -3.5vw;
    }
    .mainpage section.psychology .center-col a.info {
        font-size: 3vw;
        margin-bottom: 1.5vw;
    }
    .mainpage section.psychology .center-col span.source {
        font-size: 2.5vw;
    }
    
    .mainpage section.culture .center-col {
        width: 72vw;
        margin: 15vw auto 0 auto;
    }
    .mainpage section.culture .center-col::before {
        width: 33vw;
        height: 28vw;
        top: -19vw;
        right: 1.5vw;
    }
    .mainpage section.culture .center-col a.subtitle {
        font-size: 29vw;
        line-height: 23vw;
        margin-bottom: 5.5vw;
        margin-top: -10vw;
    }
    .mainpage section.culture .center-col a.subtitle::before,
    .mainpage section.culture .center-col a.subtitle::after {
        width: 12vw;
        height: 7.5vw;
        top: 9vw;
    }
    .mainpage section.culture .center-col a.subtitle::before {
        left: -3vw;
    }
    .mainpage section.culture .center-col a.subtitle::after {
        right: -3.5vw;
    }
    .mainpage section.culture .center-col a.info {
        font-size: 3vw;
        margin-bottom: 1.5vw;
    }
    .mainpage section.culture .center-col span.source {
        font-size: 2.5vw;
    }
    
    .mainpage section.culture i.picture-1-mobile {
        width: 88vw;
        height: 70vw;
        background: center url(../img/cat-culture-1.jpg) no-repeat;
        background-size: contain;
    }
    
    .mainpage section.technologies i.picture-1-mobile {
        width: 72vw;
        height: 80vw;
        background: center url(../img/cat-technologies-1.jpg) no-repeat;
        background-size: contain;
    }
    
    .mainpage section.history i.picture-1-mobile {
        width: 92vw;
        height: 60vw;
        background: center url(../img/cat-history-1.jpg) no-repeat;
        background-size: contain;
    }
    
    .mainpage section.society i.picture-1-mobile {
        width: 92vw;
        height: 70vw;
        background: center url(../img/cat-society-1.jpg) no-repeat;
        background-size: contain;
    }
}