.niliu-comment-mention-menu {
    position: fixed;
    z-index: 2147483000;
    width: min(300px, calc(100vw - 20px));
    max-height: min(286px, calc(100vh - 24px));
    padding: 5px;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    border: 1px solid rgba(72, 84, 110, .12);
    border-radius: 13px;
    background: rgba(255, 255, 255, .98);
    box-shadow: 0 14px 38px rgba(30, 42, 68, .16), 0 2px 8px rgba(30, 42, 68, .06);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    animation: niliu-mention-menu-in .12s ease-out both;
}

.niliu-comment-mention-menu::-webkit-scrollbar {
    width: 5px;
}

.niliu-comment-mention-menu::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: rgba(96, 108, 136, .22);
}

.niliu-comment-mention-item {
    display: flex;
    align-items: center;
    width: 100%;
    min-height: 44px;
    gap: 10px;
    padding: 6px 8px;
    border: 0;
    border-radius: 9px;
    background: transparent;
    color: #303745;
    font: inherit;
    text-align: left;
    cursor: pointer;
    transition: background-color .12s ease, transform .12s ease;
}

.niliu-comment-mention-item + .niliu-comment-mention-item {
    margin-top: 1px;
}

.niliu-comment-mention-item:hover,
.niliu-comment-mention-item:focus-visible,
.niliu-comment-mention-item.is-active {
    background: rgba(82, 113, 255, .085);
    outline: none;
}

.niliu-comment-mention-item:active {
    transform: scale(.99);
}

.niliu-comment-mention-avatar-wrap {
    position: relative;
    width: 32px;
    height: 32px;
    flex: 0 0 32px;
    border-radius: 50%;
    background: rgba(103, 116, 145, .08);
    box-shadow: inset 0 0 0 1px rgba(72, 84, 110, .08);
}

.niliu-comment-mention-avatar {
    display: block;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.niliu-comment-mention-info {
    display: flex;
    min-width: 0;
    flex: 1 1 auto;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 1px;
}

.niliu-comment-mention-name {
    min-width: 0;
    overflow: hidden;
    color: inherit;
    font-size: 13px;
    font-weight: 600;
    line-height: 1.35;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.niliu-comment-mention-username {
    max-width: 100%;
    overflow: hidden;
    color: #9097a6;
    font-size: 10px;
    font-weight: 500;
    line-height: 1.25;
    text-overflow: ellipsis;
    white-space: nowrap;
}


.niliu-comment-mention-ai {
    margin-left: auto;
    padding: 2px 7px;
    flex: 0 0 auto;
    border: 1px solid rgba(82, 113, 255, .14);
    border-radius: 999px;
    background: rgba(82, 113, 255, .08);
    color: #5965e8;
    font-size: 10px;
    font-weight: 700;
    line-height: 1.45;
}

.niliu-comment-mention-caret-mirror {
    z-index: -1;
}

.dark .niliu-comment-mention-menu,
.theme-dark .niliu-comment-mention-menu,
[data-theme="dark"] .niliu-comment-mention-menu {
    border-color: rgba(255, 255, 255, .09);
    background: rgba(31, 34, 42, .97);
    box-shadow: 0 16px 42px rgba(0, 0, 0, .38), 0 2px 8px rgba(0, 0, 0, .18);
}

.dark .niliu-comment-mention-item,
.theme-dark .niliu-comment-mention-item,
[data-theme="dark"] .niliu-comment-mention-item {
    color: rgba(255, 255, 255, .9);
}

.dark .niliu-comment-mention-username,
.theme-dark .niliu-comment-mention-username,
[data-theme="dark"] .niliu-comment-mention-username {
    color: rgba(255, 255, 255, .46);
}

.dark .niliu-comment-mention-item:hover,
.dark .niliu-comment-mention-item:focus-visible,
.dark .niliu-comment-mention-item.is-active,
.theme-dark .niliu-comment-mention-item:hover,
.theme-dark .niliu-comment-mention-item:focus-visible,
.theme-dark .niliu-comment-mention-item.is-active,
[data-theme="dark"] .niliu-comment-mention-item:hover,
[data-theme="dark"] .niliu-comment-mention-item:focus-visible,
[data-theme="dark"] .niliu-comment-mention-item.is-active {
    background: rgba(111, 132, 255, .14);
}


@keyframes niliu-mention-menu-in {
    from {
        opacity: 0;
        transform: translateY(-3px) scale(.985);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 480px) {
    .niliu-comment-mention-menu {
        width: min(270px, calc(100vw - 16px));
        max-height: min(250px, calc(100vh - 18px));
        padding: 4px;
        border-radius: 11px;
    }

    .niliu-comment-mention-item {
        min-height: 42px;
        padding: 5px 7px;
    }

    .niliu-comment-mention-avatar-wrap,
    .niliu-comment-mention-avatar {
        width: 30px;
        height: 30px;
        flex-basis: 30px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .niliu-comment-mention-menu,
    .niliu-comment-mention-item {
        animation: none !important;
        transition: none !important;
    }
}

.niliu-comment-mention-link{font-weight:600;text-decoration:none;color:var(--theme-color,#6c78ff)}
.niliu-comment-mention-link:hover{text-decoration:underline}