.post-header {
    margin-bottom: 3em;
}
.post-header__ttl {
    font-size: 1.5em;
    line-height: 1.6em;
}
.post-thum {
    max-width: 58rem;
    display: block;
    margin: 3em auto;
}
.post-body {
    margin-top: 3em;
}
.post-content__side__ttl {
    background-color: var(--color-green);
    color: white;
    padding: 1em;
}
.post-content__side ul {
    margin: 1em;
    display: flex;
    flex-direction: column;
    gap: .75em;
}
.wp-pagenavi {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1em;
    margin: var(--space-md) 0 3em 0;
    color: var(--color-green);
    font-family: var(--font-en);
}
.wp-pagenavi span.current,.wp-pagenavi a.page {
    font-size: 1.4rem;
    line-height: 1em;
    font-weight: 400;
    width: 2.5em;
    height: 2.5em;
    text-align: center;
    border: 1px solid var(--color-green);
    border-radius: 1.5em;
    display: flex;
    align-items: center;
    justify-content: center;
    border-color: var(--color-green);
    color: var(--color-green);
}
.wp-pagenavi span.current {
    background-color: var(--color-green);
    color: white;
}
.wp-pagenavi .previouspostslink,.wp-pagenavi .nextpostslink {
    line-height: 1em;
}
.post-content__nav {
    position: relative;
    width: 100%;
    margin: 2.5em 0;
}
.post-content__nav .post-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-green);
}
.post-content__nav .post-nav a {
    color: var(--color-green);
}
.post-content__nav .button a {
    margin: 0 auto;
}
.post-content__nav .button a span::after {
    display: none;
}
.post-content__nav .button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    width: 20rem;
}
.post-content__nav .button a span::before {
    content: "←";
    margin-right: 1em;
}

@media screen and (max-width: 767px) {
    .post-content__side {
        border: 1px solid var(--color-green);
        margin-top: 2.5em;
    }
    
}
@media screen and (min-width: 768px) {
   .post-content {
    display: grid;
    grid-template-columns: auto 25rem;
    gap: 3em;
    column-gap: 5em;
    row-gap: 4em;
    grid-template-areas:
		"areaA areaB"
		"areaC areaC";
   }
   .post-content .post-content__main {
        grid-area: areaA;
   }
   .post-content .post-content__side {
        grid-area: areaB;
   }
   .post-content .post-content__nav {
        grid-area: areaC;
   }
   .post-header__ttl {
        font-size: 2.5em;
    }
    .post__meta .post__date,
    .post__meta .post__cat .cat {
        font-size: 1.6rem;
    }
}