body {
    cursor: url(../images/arrow.cur) 5 5,progress;
}

a:hover {
    cursor: url(../images/hand.cur) 5 5,progress;
}

/* 触屏设备：禁用自定义光标和 .cur 文件，使用系统默认 */
@media (pointer: coarse), (hover: none) {
    body {
        cursor: default;
    }

    a:hover {
        cursor: pointer;
    }

    #cursor {
        display: none;
    }
}

@media (max-width: 580px) {
    #cursor {
        display: none;
    }
}
#cursor {
    position: fixed;
    width: 16px;
    height: 16px;
    background: #000000;
    border-radius: 8px;
    opacity: 0.25;
    z-index: 999999;
    pointer-events: none;
    transition: 0.2s ease-in-out;
    transition-property: background, opacity, transform;
}

#cursor.hidden {
    opacity: 0;
}

#cursor.hover {
    opacity: 0.1;
    transform: scale(2.5);
}

#cursor.active {
    opacity: 0.5;
    transform: scale(0.5);
}

a:hover {
    opacity: 1;
}

#clickME {
    cursor: pointer;
    display: inline-block;
    border: 1px solid #000;
}