.threadlist .thread .xn-thread-cover {
    position: relative;
    display: block;
    flex: 0 0 var(--xn-cover-width);
    width: var(--xn-cover-width);
    height: var(--xn-cover-height);
    margin: .5rem 0 .35rem;
    overflow: hidden;
    border-radius: var(--xn-cover-radius);
    background: transparent;
}

.threadlist .thread .xn-thread-cover-play {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 42px;
    height: 42px;
    border: 1.5px solid #fff;
    border-radius: 50%;
    background: transparent;
    box-shadow: none;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.threadlist .thread .xn-thread-cover-play::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 52%;
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-left: 13px solid #fff;
    transform: translate(-38%, -50%);
}

.threadlist .thread .xn-thread-cover img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: var(--xn-cover-fit);
}

.threadlist .thread .xn-thread-cover.xn-thread-cover--portrait {
    flex-basis: var(--xn-cover-portrait-width, var(--xn-cover-height));
    width: var(--xn-cover-portrait-width, var(--xn-cover-height));
    height: var(--xn-cover-width);
}

.threadlist .thread .xn-thread-cover.xn-thread-cover--portrait img {
    object-fit: contain;
}

.threadlist .thread .xn-thread-cover:hover img {
    opacity: .92;
}

@media (max-width: 575.98px) {
    .threadlist .thread .xn-thread-cover {
        flex-basis: var(--xn-cover-mobile-width);
        width: var(--xn-cover-mobile-width);
        height: var(--xn-cover-mobile-height);
        margin-top: .4rem;
        margin-bottom: .3rem;
    }

    .threadlist .thread .xn-thread-cover.xn-thread-cover--portrait {
        flex-basis: var(--xn-cover-mobile-portrait-width, var(--xn-cover-mobile-height));
        width: var(--xn-cover-mobile-portrait-width, var(--xn-cover-mobile-height));
        height: var(--xn-cover-mobile-width);
    }

    .threadlist .thread .xn-thread-cover-play {
        width: 38px;
        height: 38px;
    }

    .threadlist .thread .xn-thread-cover-play::after {
        border-top-width: 7px;
        border-bottom-width: 7px;
        border-left-width: 12px;
    }

}