.about {
}
.about-wrapper {
    padding: 6% 2% 4%;
    box-sizing: content-box;
}
.introduction-txt-strong {
    padding-bottom: 4%;
    font-size: 30px;
    font-weight: bold;
    text-align: center;
    color: #FF0000;
}
.about-txt {
    padding-bottom: 3%;
    font-size: 22px;
    text-align: center;
}
.about-txt-strong {
    font-size: 28px;
    font-weight: bold;
    color: #00357D;
}
.about-txt .-link {
    color: #00357D;
    text-decoration: underline;
}
.about-txt .-link:hover {
    text-decoration: none;
}

.about-txt:last-child {
    padding: 0;
}

@media screen and (max-width:768px) {
    .about {
        background-image: none;
        background-color: #FFF;
    }
    .about-wrapper {
        padding: 12% 4%;
        box-sizing: border-box;
    }
    .introduction-txt-strong {
        padding-bottom: 6%;
        font-size: 16px;
    }
    .about-txt {
        padding-bottom: 8%;
        font-size: 13px;
        text-align: center;
    }
    .about-txt-strong {
        font-size: 16px;
    }
}

.overview {
    background-color: #e60000;
}
.overview-wrapper {
    padding: 10% 4%;
    box-sizing: content-box;
}
.overview-contents {
    padding-bottom: 5%;
}
.overview-contents-ttl {
    max-width: 284px;
    margin: 0 auto 10px;
    padding: 6px 0;
    font-size: 24px;
    font-weight: bold;
    text-align: center;
    color: #FFF;
    border: 1px solid #FFF;
    border-radius: 25px;
    line-height: 1;
}
.overview-contents-txt {
    font-size: 22px;
    color: #FFF;
    text-align: center;
    letter-spacing: .1em;
}
.overview-contents-txt-note {
    font-size: 17px;
    text-align: center;
    color: #FFF;
}
.overview-contents-txt-y {
    color: #ffff00;
}
.overview-contents-txt strong {
    font-size: 27px;
}
.special-ttl {
    font-size: 22px;
    color: #FFF;
    font-weight: bold;
    text-align: center;
}
.special-txt {
    font-size: 17px;
    color: #FFF;
    text-align: center;
}
.special-txt-en {
    font-size: 17px;
    font-weight: bold;
    color: #ffff00;
    text-align: center;
}
.special-txt-en strong {
    font-size: 27px;
}
.overview .btn_blue {
    position: relative;
    display: block;
    width: 100%;
    max-width: 274px;
    margin: 4% auto 0;
    padding: 1% 0;
    text-align: center;
    color: #FFF;
    font-weight: bold;
    font-size: 18px;
    background-image: url(../images/common/btn_blue.jpg);
    background-size: cover;
    background-position: center;
    transition: .3s;
}
.overview .btn_blue:after {
    content: "";
    position: absolute;
    top: 50%;
    right: 15px;
    width: 10px;
    height: 10px;
    transform: translateY(-50%) rotate(45deg);
    border-top: 2px solid #FFF;
    border-right: 2px solid #FFF;
}
.overview .btn_blue:hover {
    opacity: .7;
}
@media screen and (max-width:768px) {
    .overview-wrapper {
        width: 90%;
        margin: auto;
        padding: 10% 0;
    }
    .overview-contents {
        padding-bottom: 30px;
    }
    .overview-contents-ttl {
        max-width: 160px;
        margin: 0 auto 10px;
        padding: 6px 0;
        font-size: 15px;
    }
    .overview-contents-txt-note {
        font-size: 13px;
    }
    .overview-contents-txt {
        font-size: 13px;
    }
    .overview-contents-txt strong {
        font-size: 15px;
    }
    .special-ttl {
        font-size: 18px;
    }
    .special-txt {
        font-size: 13px;
    }
    .special-txt-en {
        font-size: 15px;
    }
    .special-txt-en strong {
        font-size: 15px;
    }
    .overview .btn_blue {
        width: 90%;
        max-width: none;
        margin: 18% auto 0px;
        padding: 4% 0;
        font-size: 4vw;
    }
}


@media screen and (max-width:768px) {

}