@charset "UTF-8";

/* 赤打ち消し線 */
.red_strike{
    text-decoration: line-through;
    color: red;
}
.red_strike>.black_text{
    color: #3C3C44;
}


/* 四角白抜き数字 */
.add_square_reverse{
    background-color: #3C3C44;
    color: white;
}

.subheading{ font-weight: bold; }

.news_img_right{
    float: right;
    margin-left: 2rem;
    margin-bottom: 1rem;
    width: 100%;
}
.news_img_left{
    float: left;
    margin-right: 2rem;
    margin-bottom: 1rem;
    width: 100%;
}
@media screen and (min-width : 1100px){
    .news_right_margin{
        margin-right: 2rem;
    }
}
.news_img_right.with_border,
.news_img_left.with_border{ border: 1px solid #3C3C43; }

.note{
    font-size: .875rem;
    text-indent: -1em;
    padding-left: 1em;
    /* 効かない
    margin-top: 0;
    */
}



a.link{
    color: #af8f68;
    text-decoration: underline;
}
a.link.rika,
a.link.science,
a.link.college_physics{ color: #45b036; }
a.link.seikatsu{ color: #ee791d; }
a.link.sansu,
a.link.math,
a.link.college_math{ color: #0078b9; }
a.link.taiiku,
a.link.pe{ color: #7d4798; }

a.noline{
    text-decoration: none;
}

.width100{ width: 100%;}

@media screen and (max-width : 902px){
    .width30, .width35{
        display: block;
        margin: 0 auto;
        float: none;
        max-width: 100%;
    }
}
@media screen and (max-width : 742px){
    .width25, .width20, .width15, .width10{
        display: block;
        margin: 0 auto;
        float: none;
        max-width: 100%;
    }
}
@media screen and (min-width : 601px){
    .width35{ width: 35rem;}
    .width30{ width: 30rem;}
    .width25{ width: 25rem;}
    .width20{ width: 20rem;}
    .width15{ width: 15rem;}
    .width10{ width: 10rem;}
    .minus_width35{ width: calc(100% - 35rem); }
    .minus_width30{ width: calc(100% - 30rem); }
    .minus_width25{ width: calc(100% - 25rem); }
    .minus_width20{ width: calc(100% - 20rem); }
    .minus_width15{ width: calc(100% - 15rem); }
    .minus_width10{ width: calc(100% - 10rem); }
    .minus_width35_plus2{ width: calc(100% - 37rem); }
    .minus_width30_plus2{ width: calc(100% - 32rem); }
    .minus_width25_plus2{ width: calc(100% - 27rem); }
    .minus_width20_plus2{ width: calc(100% - 22rem); }
    .minus_width15_plus2{ width: calc(100% - 17rem); }
    .minus_width10_plus2{ width: calc(100% - 12rem); }
}

/* 枠線 */
.border_gray{
	border:solid 1px gray;
}

/* マージン・パディング */
.margin_point5{ margin: .5rem; }
.left1{ margin-left: 1rem; }
.pad_0222{
    padding: 0 2rem 2rem;
}
.pad_b1{ padding-bottom: 1rem; }
.pad_b2{ padding-bottom: 2rem; }


/* 下線 */
.underline{
	text-decoration: underline;
}
.underline.gold{
	text-decoration-color: #af8f68;
}