main > .head {
    position: relative;
    width: 100%;
    height: 22vw;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-content: center;
    justify-content: center;
    align-items: center;
}

main > .head > img {
    position: relative;
    width: 100%;
    height: 100%;
}


main > .solution {
    position: relative;
    width: 100%;
    padding: 2vw 10vw;
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    align-content: center;
    justify-content: flex-start;
    align-items: flex-start;
}

main > .solution > .select {
    position: relative;
    margin: 2vw 6vw;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-content: center;
    justify-content: flex-start;
    align-items: center;
    border-radius: 1.4vw;
    background-color: #f1f1f1;
}

main > .solution > .select > button {
    position: relative;
    width: 8vw;
    height: 2.6vw;
    border: none;
    font-size: 1vw;
    border-radius: 1.3vw;
    background-color: #f1f1f1;
    transition: font-size 0.1s linear;
}

main > .solution > .select > button:hover{
    font-size: 1.1vw;
}

main > .solution > .select > .red {
    background-color: #a61b29;
    color: white;
    border-radius: 1.3vw;
}

main > .solution > .content {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-content: center;
    justify-content: center;
    align-items: center;
}

main > .solution > .content > ul {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    align-content: center;
    justify-content: center;
    align-items: center;
}

main > .solution > .content > #Hardware{
    display: none;
}

main > .solution > .content > ul > li {
    position: relative;
    margin-bottom: 50px;
    width: 100%;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-content: center;
    justify-content: center;
    align-items: center;
}

main > .solution > .content > ul > li > .once {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    align-content: center;
    justify-content: center;
    align-items: center;
}

main > .solution > .content > ul > li > .once > span {
    position: relative;
    height: 2vw;
    font-size: 1.6vw;
}

main > .solution > .content > ul > li > .once > .article {
    position: relative;
    width: 100%;
    font-size: 1vw;
    padding: 40px 20px;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-content: center;
    justify-content: space-between;
    align-items: center;
}

main > .solution > .content > ul > li > .once > .article > img {
    width: 40%;
    height: 18vw;
    border-radius: 1vw;
}

main > .solution > .content > ul > li > .once > .article > article {
    width: 55%;
    line-height: 2;
}