:root {
    --fan-bg-color: #ecf0f3;
    --fan-header-shadow: 8px 8px 8px #cbced1,
    -8px -8px 8px #ffffff;
    --fan-content-shadow: 8px 8px 8px #d2d6d8,
    -8px -8px 8px #ffffff;
    --fan-link-shadow: 7px 7px 9px #c4c7ca,
    -7px -7px 9px #ffffff;
    --fan-sun-linear: linear-gradient(145deg, #fdffff, #d4d8db);
    --fan-sun-shadow: 5px 5px 6px #a0a3a5,
    -5px -5px 6px #ffffff;
    --fan-about-shadow: inset 5px 5px 10px #b1b4b6,
    inset -5px -5px 10px #ffffff;
    --fan-cur-point: url(../cursor/light_pointer.cur), default;
    --fan-cur-link: url(../cursor/light_link.cur), pointer;
    --fan-cur-un: url(../cursor/light_unavailiable.cur), not-allowed;
    --fan-web-shadow: 5px 5px 0 #5e6061,
    -5px -5px 0 #ffffff;
}

.change_bg {
    background-image: url("../image/bg.png");
}

.change_bg_half {
    background-image: url("../image/bg-half.png");
}