:root {
    --gradation: linear-gradient(to right, #FFA702, #FF6D02);
}
.mid02 {
    font-family: 'Lato', 'Noto Sans';
    font-size: 3em;
    line-height: 0.85em;
    margin-bottom: 0.3em;
    font-weight: 900;
    letter-spacing: 0.1em;
}
.mid02 span {
    font-family: 'Noto Sans JP';
    display: block;
    font-size: 0.4em;
    font-weight: 400;
    letter-spacing: 0.03rem;
}
.mid_right_line {
    display: flex;
    align-items: center;
    font-size: 1.6em;
    font-weight: 700;
    margin-bottom: 0.3rem;
    letter-spacing: 0.1em;
}
.mid_right_line::after {
    content: '';
    display: block;
    width: 4rem;
    height: 1px;
    background: #000;
    margin-left: 0.5em;
}
.btn01 {
    text-align: center;
}
.btn01 a {
    padding: 1em 4.5em 1em 2em;
    border-radius: 50vh;
    background: var(--gradation);
    color: #fff;
    font-weight: 500;
    text-align: left;
    position: relative;
    font-size: 1.05em;
    display: inline-block;
    transition: all .2s;
    letter-spacing: 0.1em;
}
.btn01 a::before {
    content: '';
    display: block;
    width: 30px;
    height: 7px;
    background: url(library/images/arrow01.png) no-repeat center;
    background-size: contain;
    position: absolute;
    inset: 50% 2em 50% auto;
    transform: translateY(-50%);
    transition: all .2s;
}
.btn01 a:hover::before {
    inset: 50% 1.7em 50% auto;
}
.mid02_cen {
    text-align: center;
    font-family: 'Lato', 'Open Sans', 'Noto Sans';
    font-weight: 800;
    font-size: 4em;
    line-height: 0.8em;
    letter-spacing: .1em;
    margin-bottom: 6rem;
}
.mid02_cen span {
    font-size: 0.4em;
    display: block;
    font-family: 'Noto Sans JP';
    font-weight: 600;
    letter-spacing: 0.08em;
}
.mid03 {
    padding: 7.8rem 0;
    text-align: center;
    color: #1C69A9;
    font-size: 2rem;
    letter-spacing: 0.2rem;
}
.mid03 span {
    display: block;
    font-size: 1.1rem;
    letter-spacing: 0.15rem;
    letter-spacing: 0.01rem;
}
@media screen and (max-width: 1300px) {
    .mid03 {
        padding: 6rem 0;
    }
}
@media screen and (max-width: 1100px) {
    .mid02 {
        font-size: 3em;
    }
    .mid02_cen {
        font-size: 3em;
    }
    .mid_right_line {
        font-size: 1.7em;
    }
}
@media screen and (max-width: 800px) {
    .mid02_cen {
        margin-bottom: 3rem;
    }
    .mid03 {
        padding: 4rem 0;
    }
}
@media screen and (max-width: 640px) {
    .mid02 {
        font-size: 2.5em;
    }
    .mid02_cen {
        font-size: 2.5em;
    }
    #top04 .mid_right_line {
        font-size: 1.4em;
    }
    .mid_right_line::after {
        width: 2rem;
    }
    .btn01 a {
        padding: 1em 4.5em 1em 1em;
        font-size: 1em;
    }
    .mid03 {
        font-size: 1.6rem;
    }
    .mid03 span {
        font-size: 1rem;
    }
}