.header {
    background-color: #1D3E72;
}

.header-text {
    width: 60%;
    padding: 150px 210px 0;
}

.header-image {
    width: 40%;
    position: absolute;
    right: 140px;
    top: 100px;
}

.header-image img {
    width: 700px;
    height: auto;
}

header::after {
    content: "";
    display: block;
    width: 100%;
    min-height: 37.4vh;
    background-image: url(../image/aboutus_header.png);
    background-size: cover;
    background-repeat: no-repeat;
}
.title {
    color: #fff;
    font-size: 40px;
    font-weight: 500;
}
.message {
    color: #93A4BD;
    font-size: 18px;
    font-weight: 400;
    margin-top: 10px;
}

.content-image {
    display: flex;
    justify-content: center;
    flex: 1;
    margin: 100px;
}

.content-text {
    flex: 1;
    margin: 100px 0;
}

.content-text li {
    color: #3B4D66;
    font-size: 38px;
    font-weight: 800;
}

.content-text li p {
    font-size: 16px;
    font-weight: 200;
    margin-bottom: 40px;
    margin-top: 10px;
    color: #3B4D66;
}

@media (max-width:767px) {
    .about-us {
        flex-direction: column;
    }
    .content-image {
        margin: 45px auto 10px;
    }

    .content-image img {
        width: 250px;
        height: auto;
    }

    .content-text {
        margin: 10px 0;
        text-align: center;
    }

    header::after {
        content: "";
        display: none
    }

    .header-text {
        padding: 45px 40px;
    }

    .header-image {
        position: inherit;
        display: flex;
        justify-content: center;
    }

    .header-image img {
        width: 230px;
        height: auto;
    }

    .title {
        font-size: 16px;
        font-weight: 500;
    }
    .message {
        font-size: 12px;
        font-weight: 400;
    }

    .content-text li {
        font-size: 30px;
    }

    .content-text li p {
        font-size: 14px;
        margin-bottom: 30px;
    }

}

@media screen and (max-width: 512px) {
    .title {
        font-size: 14px;
    }

    .message {
        font-size: 10px;
    }

    .content-text li {
        font-size: 25px;
    }

    .content-text li p {
        font-size: 12px;
    }
}