.about_us {
    display: flex;
    position: relative;
}

.about_us img {
    position: absolute;
    bottom: 5px;
    left: 100px;
}

.banner {
    background: linear-gradient(to bottom, #4E5252, #1E201E);
    min-height: 600px;
    padding: 5%;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    box-sizing: border-box;
}

.banner-content {
    max-width: 1440px;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5%;
}

.banner-text {
    width: 100%;
}

.company-img {
    width: 70%;
}

.content div img {
    width: 20%;
}

.sub-title h3 {
    margin-bottom: 1%;
    line-height: normal;
}

.timeline {
    padding: 5% 0%;
}

.timeline-mobile {
    display: none;
}

.timeline-header {
    padding: 0 5%;
}

.timeline-container {
    position: relative;
    margin-top: 5%;
    padding-top: 7%;
}

.timeline-row {
    display: flex;
    border-top: 4px solid #7F8487;
    justify-content: flex-start;
    gap: 5%;
    padding: 0% 5%;
}

.column h2,
.column-right h2 {
    font-family: "Cormorant Infant", serif;
    font-size: 32px;
    line-height: normal;
    align-items: center;
}

.column h3,
.column-right h3 {
    font-family: "Cormorant Infant", serif;
    line-height: normal;
    margin: 0%;
}

.column img,
.column-right img {
    width: 90%;
}

.date,
.date-red {
    position: absolute;
    top: 0;
    display: flex;
    width: 25%;
    justify-content: center;
}


.date h3,
.date-red h3 {
    font-size: 40px;
}

.date-red h3 {
    color: #C1182B;
}

.arrow,
.arrow-even,
.arrow-last,
.arrow-red {
    position: absolute;
    width: 3%;
    top: 20%;
}

.arrow-even {
    transform: rotate(180deg);
    top: 19%;
}

.arrow-red {
    width: 4%;
}

@media screen and (max-width:1200px) {
    .banner-content {
        min-height: 500px;
    }

    .company-img {
        width: 100%;
    }

    .content div img {
        width: 40%;
    }

    .date h3,
    .date-red h3 {
        font-size: 32px;
    }

    .arrow,
    .arrow-even,
    .arrow-red,
    .arrow-last {
        top: 17%;
    }

    .arrow-last {
        top: 16.5%;
    }
}

@media screen and (max-width:1000px) {

    .date h3,
    .date-red h3 {
        font-size: 28px;
    }

    .column h2,
    .column-right h2 {
        font-size: 28px;
    }

    .arrow,
    .arrow-last {
        top: 16%;
    }

}

@media screen and (max-width:900px) {

    .column h2,
    .column-right h2 {
        font-size: 25px;
    }

    .date h2 {
        font-size: 32px;
    }
}

/*tablet*/
@media screen and (max-width: 797px) {
    .next-page {
        position: absolute;
        right: 3%;
    }
}

@media screen and (max-width:768px) {
    .banner-content {
        min-height: 600px;
        position: relative;
        display: flex;
        align-items: flex-start;
    }

    .banner-text {
        width: 100%;
    }

    .key-people {
        position: absolute;
        display: flex;
        width: 90%;
        left: 0;
        bottom: 0;
        padding: 2% 5%;
        justify-content: center;
        background-color: #7F8487;
    }

    .key-people div {
        padding: 0% 5%;
    }

    .key-people div:last-child {
        border-left: 2px solid white;
    }

    .timeline-mobile {
        display: block;
        margin-top: 10%;
    }

    .timeline {
        display: none;
    }

    .timeline-header {
        text-align: center;
    }

    .timeline-container {
        position: static;
        padding-top: 0%;
        display: flex;
        flex-direction: column;
        margin-bottom: 10%;
    }

    .column,
    .column-right {
        width: 45%;
        text-align: center;
        padding: 0px 2.45%;
        position: relative;
    }

    .column {
        border-right: 2px solid white;
    }

    .column-right {
        align-self: flex-end;
        border-left: 2px solid white;
    }

    .column div,
    .column-right div {
        display: flex;
        flex-direction: column-reverse;
        align-items: center;
    }

    .column img,
    .column-right img {
        width: 80%;
    }

    .column h2,
    .column-right h2 {
        font-size: 20px;
    }

    .date {
        position: static;
        width: 100%;
    }

    .date h2 {
        font-size: 32px;
    }

    .date-red {
        position: absolute;
        width: 100%;
        top: -18%;
        left: -1%;
    }


    .arrow,
    .arrow-even,
    .arrow-red {
        position: absolute;
        width: 10%;
        transform: rotate(90deg);
    }

    .arrow {
        right: -5%;
    }

    .arrow-even {
        left: -5%;
    }

    .arrow-red {
        width: 15%;
        transform: rotate(270deg);
        left: -3%;

    }
}

@media screen and (max-width:700px) {
    .banner-content {
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        text-align: center;
        padding-bottom: 25%;
    }

    .banner-content div {
        padding-top: 2%;
    }

    .key-people div {
        padding-top: 0%;
    }
}

/*mobile*/
@media screen and (max-width:700px) {
    .banner-content h4 {
        font-family: "Amiko", sans-serif;
        font-size: 12px;
    }

    .column h2,
    .column-right h2 {
        font-family: "Amiko", sans-serif;
        font-size: 12px;
    }

    .column h3,
    .column-right h3 {
        font-size: 18px;
    }

    .date h2 {
        font-family: "Cormorant Infant", serif;
        font-size: 24px;
    }
}

@media screen and (max-width:466px) {
    .sub-title h3 {
        font-size: 24px;
    }

    .member p {
        font-size: 12px;
    }
}