/* 古卷云 · 十二分类导读插画。正文仍使用原来的 59em 阅读宽度。 */
.guji-brief-art {
    display: none;
    pointer-events: none;
    user-select: none;
}

@media screen and (min-width: 1200px) {
    .guji-brief:has(.guji-brief-art) {
        isolation: isolate;
    }

    .guji-brief .guji-brief-art {
        display: block;
        position: absolute;
        z-index: -1;
        top: 50%;
        right: 0;
        height: min(calc(100% - 110px), 540px);
        transform: translateY(-50%);
        /* 仅向正文末端延伸少许；延伸区域由遮罩完全消隐。 */
        width: max(0px, calc(100% - 59em + 28px));
        background-position: right center;
        background-size: auto 100%;
        background-repeat: no-repeat;
        opacity: .85;
        -webkit-mask-image: linear-gradient(to right, transparent, transparent 72px, #000 90%),
            linear-gradient(to bottom, transparent, #000 14%, #000 84%, transparent);
        -webkit-mask-composite: source-in;
        mask-image: linear-gradient(to right, transparent, transparent 72px, #000 90%),
            linear-gradient(to bottom, transparent, #000 14%, #000 84%, transparent);
        mask-composite: intersect;
    }

    /* 占位不需要插画；折叠后不留残影，也不让装饰撑高卡片。 */
    .guji-brief.is-pending .guji-brief-art,
    .guji-brief.is-failed .guji-brief-art,
    .guji-brief.is-folded .guji-brief-art {
        display: none;
    }

    .guji-brief-art[data-brief-art="buddhism"] { background-image: url('../img/brief-backgrounds/buddhism.webp'); }
    .guji-brief-art[data-brief-art="medicine"] { background-image: url('../img/brief-backgrounds/medicine.webp'); }
    .guji-brief-art[data-brief-art="daily-life"] { background-image: url('../img/brief-backgrounds/daily-life.webp'); }
    .guji-brief-art[data-brief-art="ancient-maps"] { background-image: url('../img/brief-backgrounds/ancient-maps.webp'); }
    .guji-brief-art[data-brief-art="medical-classics"] { background-image: url('../img/brief-backgrounds/medical-classics.webp'); }
    .guji-brief-art[data-brief-art="tuibeitu"] { background-image: url('../img/brief-backgrounds/tuibeitu.webp'); }
    .guji-brief-art[data-brief-art="yijing"] { background-image: url('../img/brief-backgrounds/yijing.webp'); }
    .guji-brief-art[data-brief-art="yongle"] { background-image: url('../img/brief-backgrounds/yongle.webp'); }
    .guji-brief-art[data-brief-art="zhuyou"] { background-image: url('../img/brief-backgrounds/zhuyou.webp'); }
    .guji-brief-art[data-brief-art="dao-philosophy"] { background-image: url('../img/brief-backgrounds/dao-philosophy.webp'); }
    .guji-brief-art[data-brief-art="taoism"] { background-image: url('../img/brief-backgrounds/taoism.webp'); }
    .guji-brief-art[data-brief-art="fengshui"] { background-image: url('../img/brief-backgrounds/fengshui.webp'); }
}

@media print, (forced-colors: active) {
    .guji-brief .guji-brief-art { display: none; }
}