.sect_mv img{
    display: block;
    width: 100%;
    height: auto;
}
.sect01{
    padding: 100px 0 150px 0;
}
@media screen and (max-width: 768px) {
    .sect01{
        padding: 60px 0;
    }
}
.topic_list{
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    margin-left: -20px;
    margin-right: -20px;
}
@media screen and (max-width: 768px) {
    .topic_list{
        flex-direction: column;
        margin-left: 0;
        margin-right: 0;
        padding: 0 4vw;
    }
}
.topic_item{
    width: 100%;
    margin: 0 20px;
    padding: 30px 0;
    border-bottom: solid 1px #878787;
}
@media screen and (max-width: 768px) {
    .topic_item{
        margin: 0;
    }    
}
    .topic_item > .title{
        font-size: 18px;
        font-weight: bold;
        margin-bottom: 20px;
        display: none;
    }
    .topic_item.half > .title{
        display: block;
    }
    @media screen and (max-width: 1026px) {
        .topic_item > .title{
            display: block;
        }
    }
    @media screen and (max-width: 768px) {
        .topic_item > .title{
            font-size: 18px;
            line-height: 1.94;
        }
    }
    .topic_item .content{
        width: 100%;
        display: flex;
        flex-direction: row;
    }
    @media screen and (max-width: 768px) {
        .topic_item .content{
            flex-direction: column;
        }
    }
    .topic_item:first-child{
        border-top: solid 1px #878787;
    }
    .topic_item .thumb{
        width: 200px;
        height: auto;
    }
    @media screen and (max-width: 768px) {
        .topic_item .thumb{
            width: 100%;
            height: auto;
            max-height: 50.6vw;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }
    }
        .topic_item .thumb img{
            width: 100%;
        }
    .topic_item .detail{
        width: calc(100% - 200px);
        padding-left: 21px;
    }
    @media screen and (max-width: 768px) {
        .topic_item .detail{
            width: 100%;
            padding-left: 0;
            padding-top: 20px;
        }
    }
    .topic_item .detail .info{
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        margin-bottom: 13px;
    }
        .topic_item .detail .info .date{
            font-size: 13px;
            color: #686868;
        }
        @media screen and (max-width: 768px) {
            .topic_item .detail .info{
                margin-bottom: 20px;
            }
            .topic_item .detail .info .date{
                font-size: 14px;
            }
        }
        .topic_item .detail .info .category{
            font-size: 13px;
            color: #686868;
            border: solid 1px #BCBCBC;
            padding: 2px 9px;
            margin-left: 15px;
        }
        @media screen and (max-width: 768px) {
            .topic_item .detail .info .category{
                font-size: 14px;
                margin-left: 10px;
            }
        }

    .topic_item .detail .title{
        font-size: 20px;
        font-weight: bold;
        margin-bottom: 15px;
    }
    .topic_item.half .detail .title{
        display: none;
    }
    @media screen and (max-width: 1026px) {
        .topic_item .detail .title{
            display: none;
        }
    }
    .topic_item .detail .desc{
        color: #686868;
        line-height: 1.6;
        margin-bottom: 20px;
    }
    @media screen and (max-width: 768px) {
        .topic_item .detail .desc{
            line-height: 2;
        }
    }
    .topic_item .link{
        font-size: 13px;
        font-weight: bold;
        color: #fff;
        width: 120px;
        max-width: 100%;
        height: 26px;
        border-radius: 5px;
        position: relative;
        background-color: #003399;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .topic_item .link::after{
        content: '';
        width: 5px;
        height: 9px;
        background: url('../img/icon-topic-arrow.png');
        position: absolute;
        right: 10px;
        display: block;
    }
    @media screen and (max-width: 768px) {
        .topic_item .link{
            width: 240px;
            height: 50px;
            margin: 0 auto;
            font-size: 15px;
        }
    }

.topic_item.half{
    width: calc((100% - 80px) / 2);
}
@media screen and (max-width: 1026px) {
    .topic_item.half{
        width: 100%;
    }
}

.sect02{
    padding: 100px 0 150px 0;
}
@media screen and (max-width: 768px) {
    .sect02{
        padding: 30px 0 60px 0;
    }
}

.list_btn{
    width: 240px;
    height: 50px;
    border: solid 1px #003399;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    font-size: 13px;
    font-weight: bold;
    color: #003399;
    margin: 40px auto 0 auto;
    position: relative;
}
.list_btn::after{
    content: '';
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 9px;
    background: url('../img/icon-right-blue-arrow.png');
}

@media screen and (max-width: 768px) {
    .list_btn{
        width: 250px;
        height: 50px;
    }
}