托盘绑定，中间品绑定托盘无需验证箱支关系。

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2024-02-20 cc5dc36bc4b5d325c57cbec3635dd0f8798bd854

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.close-base(@top: 0, @icon-font-size: 22px) {
    font-size: @icon-font-size;
    color: @legend-color;
    transition: color @transition-time ease;
    position: relative;
    top: @top;
    &:hover {
        color: #444;
    }
}