/* COMMON_START */
#app {
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    background: #f5f5f7;
}

.default_container {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

.mouse_to_hand:hover {
    cursor: pointer;
}

/* COMMON_END */

/* HEADER_START */
.page_header {
    color: #ffffff;
    background: #064cdb;
    font-size: 18px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
}

.jie {
    /*color: #FFB6C1;*/
    text-shadow: 3px 3px 3px rgba(0, 0, 0, 3);
}

.star {
    /*color: #FFD700;*/
    text-shadow: 3px 3px 3px rgba(0, 0, 0, 3);
}

.chen {
    /*color: #87CEEB;*/
    text-shadow: 3px 3px 3px rgba(0, 0, 0, 3);
}

#countdown {
    color: pink;
    text-shadow: 3px 3px 3px rgba(0, 0, 0, 3);
}

.navigation_button {
    display: none;
    width: 22px;
    height: 22px;
    flex-direction: column;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    position: relative;
}

.navigation_button span {
    height: 3px;
    width: 100%;
    background-color: #ffffff;
    /*box-shadow: 3px 3px 3px rgba(0, 0, 0, 3);*/
    transition: all 0.3s ease;
    position: absolute;
}

.navigation_button .nb_top {
    top: 25%;
}

.navigation_button .nb_bottom {
    bottom: 25%;
}

/* HEADER_END */

/* CENTER_START */
.page_center {
    flex: 1;
    display: flex;
    flex-direction: row;
}

.navigation_menu {
    flex: 2;
}

.navigation_page {
    flex: 8;
}

.navigation_ul {
    margin: 0;
    padding: 0;
}

.navigation_li {
    font-weight: bold;
    list-style-type: none;
}

.navigation_li.active {
    color: #ffffff;
    background: #064cdb;
}

/* CENTER_END */

/* FOOTER_START */
.page_footer {
    color: #ffffff;
    background: #000000;
    font-size: 13px;
    font-family: Microsoft YaHei, Arial, Helvetica, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
}

.copy a {
    outline: none;
    text-decoration: none;
    color: #ffffff;
}

/* FOOTER_END */