/* seemb8 右侧悬浮条（与 seemb4 site-right-float-rail 交互一致，样式独立） */
.site-right-float-rail {
    position: fixed;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    z-index: 990;
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 42px;
    align-items: stretch;
    box-sizing: border-box;
}

@media (max-width: 991.98px) {
    html:not([data-mobile-show-sidebar="1"]) .site-right-float-rail {
        display: none;
    }
}

/* 收起/展开把手：仅 ≤768px 显示 */
.site-right-float-rail__toggle {
    display: none;
}

@media (max-width: 768px) {
    .site-right-float-rail {
        width: 34px;
        transform: translateY(-50%) translateX(100%);
        transition: transform 0.25s ease;
    }

    .site-right-float-rail.is-open {
        transform: translateY(-50%) translateX(0);
    }

    .site-right-float-rail__btn {
        padding: 5px 3px;
        border-radius: 8px 0 0 8px;
    }

    .site-right-float-rail__icon-svg {
        width: 24px;
        height: 24px;
    }

    .site-right-float-rail__icon-svg .site-right-float-rail__svg {
        width: 18px;
        height: 18px;
    }

    .site-right-float-rail__toggle {
        position: absolute;
        left: -22px;
        top: 50%;
        transform: translateY(-50%);
        width: 22px;
        height: 56px;
        margin: 0;
        padding: 0;
        border: 0;
        border-radius: 8px 0 0 8px;
        background: var(--cat-primary, #4267b2);
        color: #fff;
        box-shadow: -2px 0 10px rgba(15, 23, 42, 0.18);
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .site-right-float-rail__toggle .iconfont {
        font-size: 14px;
        transform: rotate(180deg);
        transition: transform 0.25s ease;
    }

    .site-right-float-rail.is-open .site-right-float-rail__toggle .iconfont {
        transform: rotate(0deg);
    }
}

.site-right-float-rail__btn {
    margin: 0;
    border: 0;
    border-radius: 10px 0 0 10px;
    background: #fff;
    box-shadow: -2px 0 14px rgba(15, 23, 42, 0.1);
    cursor: pointer;
    color: var(--cat-primary, #4267b2);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 6px 4px;
    min-height: 0;
    text-decoration: none;
    font: inherit;
    box-sizing: border-box;
    width: 100%;
}

.site-right-float-rail__btn:hover {
    background: var(--cat-bg, #f6f8fc);
}

.site-right-float-rail__btn:focus-visible {
    outline: 2px solid var(--cat-primary, #4267b2);
    outline-offset: 2px;
}

.site-right-float-rail__btn--display-only {
    cursor: default;
}

.site-right-float-rail__btn--display-only:hover {
    background: #fff;
}

.site-right-float-rail__kefu-strip--media {
    min-width: 0;
    max-width: min(200px, 46vw);
    padding: 8px;
}

.site-right-float-rail__kefu-strip--media img {
    display: block;
    width: 160px;
    height: auto;
    max-width: min(184px, 42vw);
    max-height: min(220px, 50vh);
    object-fit: contain;
}

.site-right-float-rail__icon-svg {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    flex-shrink: 0;
    color: inherit;
    pointer-events: none;
}

.site-right-float-rail__icon-svg .site-right-float-rail__svg {
    display: block;
    width: 22px;
    height: 22px;
}

.site-right-float-rail__kefu-wrap {
    position: relative;
    width: 100%;
    flex-shrink: 0;
}

.site-right-float-rail__kefu-strip {
    position: absolute;
    right: calc(100% + 6px);
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.18s ease, visibility 0.18s ease;
    background: #fff;
    color: var(--cat-text, #333);
    font-size: 0.8125rem;
    line-height: 1.35;
    white-space: normal;
    word-break: break-word;
    padding: 8px 14px;
    border-radius: 8px;
    box-shadow: -4px 0 14px rgba(15, 23, 42, 0.12);
    min-width: 120px;
}

.site-right-float-rail__kefu-wrap:hover .site-right-float-rail__kefu-strip,
.site-right-float-rail__kefu-wrap:focus-within .site-right-float-rail__kefu-strip {
    visibility: visible;
    opacity: 1;
}