.topic-details {
    background: linear-gradient(#007EC3, #A9DCF6);
    padding-top: 40px;
    padding-bottom: 78px;
    position: relative;
    overflow: hidden;
}

.topic-details::after{
    background-image: url('../img/top/top__topix__bg.png');
    content: "";
    display: inline-block;
    background-size: contain;
    position: absolute;
    bottom: 0;
    height: 66.2vw;
    width: 100vw;
    background-repeat: no-repeat;

}

img{
    width: 100%;
}

.topic-details__info{
    width: calc(345/375*100%);
    margin: 0 auto;
}

.content {
    
    background-color: #fff;
    
    text-align: center;
    padding:0 10px;
    border-radius: 10px;
    filter: drop-shadow(8px 8px 1px #00000027);
    color:#434343 ;
    padding-bottom: 22px;
    margin-bottom: 45px;
    position: relative;
    z-index: 10;
}

.content__ttl{
    font-size:24px;
    font-weight: 400;
    text-align: left;
    background-color:#434343 ;
    margin: 0 -10px;
    border-radius: 10px 10px 0 0;
    line-height: calc(32/24);
    padding: 16px 20px;
    color: #fff;
}



.content__time {
    text-align: left;
    font-size: 14px;
    margin: 0 10px;
    margin-top: 20px;
    margin-bottom: 20px;

}

.content h2{
    font-size: 20px;
    line-height:calc(30/20);
    font-weight: normal;
    text-align: left;
    font-family: 'Noto Sans JP', sans-serif;
    margin: 0 10px;


}

.content__img01 {
   
    margin-top: 20px;
    margin-bottom: 20px;
}

.content h3{
    margin: 0 10px;
    font-size: 18px;
    line-height:calc(24/18);
    text-align: left;
    font-weight: normal;
    margin-bottom: 20px;
    font-family: 'Noto Sans JP', sans-serif;

}

.content__txt {
    margin: 0 10px;
    line-height: calc(32/16);
    text-align: left;
}

.content__flex__wrap {
    margin-top: 20px;
}

.content__flex__img {
    margin-bottom: 19px;
}

.content__flex__txt {
    margin: 0 10px;
    line-height: calc(32/16);
    text-align: left;
}

.return__btn-sp {
    width: 191px;
    height:32px;
    background-color: #fff;
    border-radius:50px;
    margin:0 auto;
    margin-bottom: 18px;
    position: relative;
    z-index: 1;

}

.return__btn-sp a{
    display: flex;
    justify-content: center;
    align-items: center;
    width:100%;
    height: 100%;
    color: #707070;
    
}

.btn__list {
    display: flex;
    justify-content:space-between;
    margin:0 15px;
    position: relative;
    z-index: 1;
}


.btn__list__item {
    width: 144px;
    height: 32px;
    background-color: #fff;
    border-radius:50px;
}
.btn__list__item a{
    display: flex;
    justify-content: center;
    align-items: center;
    width:100%;
    height: 100%;
    color: #707070;
}
.btn__list__item span {
    font-size: 30px;
    position: relative;
    top: -3.2px;
   
}
.s-l{
    right: 5px;
}
.s-r{
    left: 5px;
}

.return__btn-pc{
    display: none;
}

/* .bg-1{
    position: relative;
}

.bg-1::before{
    content: " ";
       background-image: url('../img/topic-details/bg-1.png');
       background-size: contain;
       display: inline-block;
       background-repeat: no-repeat;
       bottom:-210px ;
       width:61px;
       height: 79px;
       position: absolute;
      left: 0;
     filter: none !important;
}
.bg-1::after{
    content: " ";
       background-image: url('../img/topic-details/bg-2.png');
       background-size: contain;
       display: inline-block;
       background-repeat: no-repeat;
       bottom:-205px ;
       width:41px;
       height: 252px;
       position: absolute;
      left:auto;
      right:0;
} */

.topic-details48__img{
    max-width: 400px;
    margin-left: auto;
}
p{
    line-height: 1.5;
    text-align: left;
}


@media screen and (min-width: 768px){
    .topic-details {
        padding-top: 60px;
        padding-bottom: 152px;
    }
    

    
    .topic-details__info{
        width: auto;
        margin: 0 auto;
        max-width: 1030px;
        padding: 0 15px;
    }
    
    .content {
        
        background-color: #fff;
        
        text-align: center;
        padding:0 100px 60px;
        border-radius: 10px;
        filter: drop-shadow(8px 8px 1px #00000027);
        color:#434343 ;
        margin-bottom: 45px;
        position: relative;
        z-index: 10;
    }
    
    .content__ttl{
        font-size:28px;
        font-weight: 400;
        text-align: left;
        background-color:#434343 ;
        margin: 0 -100px;
        border-radius: 10px 10px 0 0;
        line-height: calc(32/24);
        padding: 28px 100px;
        color: #fff;
    }
    
    
    
    .content__time {
        text-align: left;
        font-size: 16px;
        margin: 0 ;
        margin-top: 20px;
        margin-bottom: 40px;
    
    }
    
    .content h2{
        font-size: 24px;
        line-height:calc(30/24);
        font-weight: normal;
        text-align: left;
        font-family: 'Noto Sans JP', sans-serif;
        margin: 0;
    
    
    }
    
    .content__img01 {
       
        margin-top: 18px;
        margin-bottom: 30px;
    }
    
    .content h3{
        margin: 0 10px;
        font-size: 20px;
        line-height:calc(26/20);
        text-align: left;
        font-weight: normal;
        margin-bottom: 20px;
        font-family: 'Noto Sans JP', sans-serif;
    
    }
    
    .content__txt {
        margin: 0 10px;
        line-height: calc(32/16);
        text-align: left;
    }
    
    .content__flex__wrap {
        margin-top: 30px;
      /*   display: flex; */
    }
    
    .content__flex__img {
        margin-bottom: 0;
        width: 50%;
        margin-right: 5%;
    }
    
    .content__flex__txt {
        margin: 0 ;
        width: 46%;
    }
/* 仮 */
    .content__flex__img {
        width: 100%;
    }
    .content__flex__txt{ width: 100%;}

    /*  */
    
    .return__btn-sp {
        width: 191px;
        height:32px;
        background-color: #fff;
        border-radius:50px;
        margin:0 auto;
        margin-bottom: 18px;

        display: none;
    
    }
    
    .return__btn-sp a{
        display: flex;
        justify-content: center;
        align-items: center;
        width:100%;
        height: 100%;
        color: #707070;
        
    }
    
    .btn__list {
        display: flex;
        justify-content:space-between;
        margin:0 auto;
        position: relative;
        max-width: 559px;

        z-index: 1;
    }
    
    
    .btn__list__item {
        width: 144px;
        height: 32px;
        background-color: #fff;
        border-radius:50px;
    }
    .btn__list__item a{
        display: flex;
        justify-content: center;
        align-items: center;
        width:100%;
        height: 100%;
        color: #707070;
    }
    .btn__list__item span {
        font-size: 30px;
        position: relative;
        top: -3.2px;
       
    }
   
    
    .return__btn-pc{
        display: block;
        width: 191px;
        height:32px;
    }
    
    /* .bg-1{
        position: relative;
    }
    
    .bg-1::before{
        content: " ";
           background-image: url('../img/topic-details/bg-1.png');
           background-size: contain;
           display: inline-block;
           background-repeat: no-repeat;
           bottom:-237px ;
           width:123px;
           height: 159px;
           position: absolute;
          left: -100px;
         filter: none !important;
    }
    .bg-1::after{
        content: " ";
           background-image: url('../img/topic-details/bg-2.png');
           background-size: contain;
           display: inline-block;
           background-repeat: no-repeat;
           bottom:-231px ;
           width:81px;
           height: 500px;
           position: absolute;
          left:auto;
          right:-95px;
    }

    .topic-details{
        position: relative
    }

    .topic-details::before{
        content: " ";
        background-image: url('../img/topic-details/bg-3.png');
        background-size: contain;
        display: inline-block;
        background-repeat: no-repeat;
        top: 20%;
        width:47px;
        height:149px;
        position: absolute;
        left: 5%;
    }
    .topic-details::after{
        content: " ";
        background-image: url('../img/topic-details/bg-4.png');
        background-size: contain;
        display: inline-block;
        background-repeat: no-repeat;
        top: 35%;
        width:120px;
        height:138px;
        position: absolute;
        left: auto;
        right: 2%;
    }

    @media screen and (max-width: 1250px){
        .bg-1::before{
            content: " ";
               background-image: url('../img/topic-details/bg-1.png');
               background-size: contain;
               display: inline-block;
               background-repeat: no-repeat;
               bottom:-237px ;
               width:123px;
               height: 159px;
               position: absolute;
              left: -0;
             filter: none !important;
        }
        .bg-1::after{
            content: " ";
               background-image: url('../img/topic-details/bg-2.png');
               background-size: contain;
               display: inline-block;
               background-repeat: no-repeat;
               bottom:-231px ;
               width:81px;
               height: 500px;
               position: absolute;
              left:auto;
              right:-0;
        }



    } */
}