/* 首页文章网格 */
#primary {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px;
    box-sizing: border-box;
    width: min(1200px, calc(100% - 48px));
    margin: 64px auto 0;
    background: #fff;
    align-items: start;
}

/* 文章卡片 */
#primary .post-card {
    --card-accent: var(--space-coral);

    display: flex;
    width: auto;
    min-width: 0;
    margin: 0;
    padding: 0;
    align-self: start;
    flex-direction: column;
    overflow: visible;
    text-align: left;
    background: transparent;
    border: 0;
    box-shadow: none;
}

#primary .post-card:nth-child(4n + 1) {
    --card-accent: #e75867;
}

#primary .post-card:nth-child(4n + 2) {
    --card-accent: #d99262;
}

#primary .post-card:nth-child(4n + 3) {
    --card-accent: #78b8c4;
}

#primary .post-card:nth-child(4n + 4) {
    --card-accent: #c49ad9;
}

#primary .post-card:hover {
    box-shadow: none;
    transform: none;
}

/* 封面区域 */
#primary .post-card__media {
    position: relative;
    z-index: auto;
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    margin: 0;
    overflow: hidden;
    background: var(--space-ink);
    border: 1px solid var(--space-ink);
}
#primary .post-card__cover {
    display: block;
    width: 100%;
    height: 100%;
    max-width: none;
    object-fit: cover;
    transition: transform 320ms cubic-bezier(0.22, 1, 0.36, 1);
}
#primary .post-card:hover .post-card__cover {
    transform: scale(1.025);
}
#primary .post-card__media::before {
    position: absolute;
    z-index: 1;
    inset: 0;
    content: "";
    pointer-events: none;
    background: rgba(23, 18, 31, 0.08);
    transition: opacity 180ms ease;
}
#primary .post-card__media::after {
    position: absolute;
    z-index: 2;
    top: 0;
    left: 0;
    width: 58px;
    height: 6px;
    content: "";
    pointer-events: none;
    background: var(--card-accent);
}
#primary .post-card:hover .post-card__media::before {
    opacity: 0.2;
}
/* 文章文字区 */
#primary .post-card .post-card__body {
    position: static;
    display: flex;
    box-sizing: border-box;
    width: auto;
    min-height: 0;
    height: auto;
    padding: 22px 2px 28px;
    flex-direction: column;
    color: var(--space-text);
    background: #fff;
    border: 0;
    border-bottom: 1px solid #d9cfd2;
}

#primary .post-card__date {
    margin: 0;
    color: var(--card-accent);
    font-family: "Source Code Pro", monospace;
    font-size: 10px;
    font-weight: 600;
    line-height: 1;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

#primary .post-card__title {
    margin: 18px 0 0;
    font-size: clamp(24px, 2.2vw, 32px);
    font-weight: 500;
    line-height: 1.22;
    letter-spacing: -0.035em;
}

#primary .post-card__summary {
    display: -webkit-box;
    min-height: 0;
    margin: 16px 0 0;
    overflow: hidden;
    color: #6f6269;
    font-size: 14px;
    line-height: 1.7;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}
#primary .post-card__title-link {
    color: var(--space-text);
    text-decoration: none;
    transition: color 160ms ease;
}

#primary .post-card__title-link::after {
    display: inline-block;
    margin-left: 8px;
    color: var(--card-accent);
    font-family: "Source Code Pro", monospace;
    font-size: 12px;
    content: "↗";
    transition: transform 160ms ease;
}

#primary .post-card:hover .post-card__title-link {
    color: var(--card-accent);
}

#primary .post-card:hover .post-card__title-link::after {
    transform: translate(2px, -2px);
}
/* 加载更多 */
#pager {
    z-index: 1;
    margin: 64px 0 0;
}

#pager a {
    display: inline-block;
    padding: 12px 24px;
    color: #fff;
    font-family: "Source Code Pro", monospace;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.12em;
    background: var(--space-ink);
    border: 2px solid var(--space-ink);
    box-shadow: 4px 4px 0 var(--space-coral);
    transition:
        box-shadow 100ms steps(2, end),
        transform 100ms steps(2, end);
}

#pager a:hover {
    color: var(--space-ink);
    background: var(--space-paper);
    box-shadow: 1px 1px 0 var(--space-coral);
    transform: translate(3px, 3px);
}

/* 平板与手机 */
@media screen and (max-width: 800px) {
    #primary {
        grid-template-columns: 1fr;
        width: min(680px, calc(100% - 36px));
        gap: 30px;
        margin-top: 42px;
    }

    #primary .post-card {
    box-shadow: none;
}

    #primary .post-card .post-card__body {
        min-height: 0;
        padding: 22px;
    }

    #primary .post-card__summary {
        min-height: 0;
    }
}

@media screen and (max-width: 480px) {
    #primary .post-card__title {
        font-size: 24px;
    }

    #primary .post-card__media {
        aspect-ratio: 4 / 3;
    }
}

@media (prefers-reduced-motion: reduce) {
    #primary .post-card,
    #primary .post-card__cover,
    #pager a {
        transition: none;
    }

    #primary .post-card:hover,
    #pager a:hover {
        transform: none;
    }

    #primary .post-card:hover .post-card__cover {
        transform: none;
    }
}