.ft-common {
    display: none;
}

.use-wrapper {
    width: 100%;
    color: #555;
    font-size: 16px;
    line-height: 1.65;
    margin-top: 5rem;
    user-select: none;
}

.use-title {
    color: var(--main-color);
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 2rem;
}

.use-title span {
    color: #bbb;
    font-size: 18px;
    font-weight: 500;
    margin-left: 10px;
}

.use-head {
    color: #222;
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 0;
    margin-top: 2rem;
    margin-bottom: -1rem;
}

.use-head:first-child {
    margin-top: 0;
}

.use-box-wrapper {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.use-b-title {
    color: #333;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: .5rem;
}


/*==================================================*/
@media (max-width: 550px) {
    .use-wrapper {
        font-size: 13px;
        margin-top: 4rem;
    }

    .use-title {
        font-size: 30px;
        display: flex;
        flex-direction: column;
        gap: 5px;
    }

    .use-title span {
        font-size: 15px;
        margin-left: 0;
    }

    .use-head {
        font-size: 20px;
        margin-top: 1.5rem;
    }

    .use-box-wrapper {
        gap: 1.5rem;
    }

    .use-b-title {
        font-size: 16px;
    }
}