body {
    margin: 0;
}

.index_title_1 {
    font-size: 2.8125rem;
    font-weight: 500;
    color: #f2f2f2;
    line-height: 4.5625rem;
    margin: 0;
    text-shadow: 0px 2px 4px rgba(0, 0, 0, 0.5);
}

.index_title_2 {
    font-size: 2.625rem;
    font-weight: 500;
    color: #f2f2f2;
    line-height: 3.5rem;
    text-shadow: 0px 2px 4px rgba(0, 0, 0, 0.5);
}

.index_title_3 {
    font-size: 2.325rem;
    font-weight: 500;
    color: #f2f2f2;
    line-height: 3.25rem;
    text-shadow: 0px 2px 4px rgba(0, 0, 0, 0.5);
}

.index_title_4 {
    font-size: 1.625rem;
    font-weight: 500;
    color: #f2f2f2;
    line-height: 2.875rem;
    text-shadow: 0px 2px 4px rgba(0, 0, 0, 0.5);
}

.index_content_1 {
    font-size: 1.125rem;
    font-weight: 300;
    color: #f2f2f2;
    line-height: 2.3125rem;
    font-family: auto;
    text-shadow: 0px 2px 4px rgba(0, 0, 0, 0.5);
}

.index_content_4 {
    font-size: 1.3125rem;
    font-weight: 300;
    color: #f2f2f2;
    line-height: 2.625rem;
    font-family: auto;
    text-shadow: 0px 2px 4px rgba(0, 0, 0, 0.5);
}

.index_header {
    height: 4rem;
    position: fixed;
    top: 0;
    width: 100vw;
    background: transparent;
}

.hidden_header {
    position: fixed;
    top: -4.1rem;
    transition: top 0.3s;
    z-index: 1000;
}

.header_show {
    top: 0rem;
}

#header_img img {
    height: 3.5rem;
}

#header_img_narrow img {
    height: 3rem;
}

.header_white a {
    color: #f2f2f2;
    font-weight: 300;
}

.header_white .now {
    font-weight: 500;
}

.header_white a:hover {
    border-bottom: 0.2rem solid #f2f2f2;
}

.header_dark a {
    color: #333;
}

.header_dark .now {
    color: #0A4ECC;
}

.header_dark a:hover {
    color: #0A4ECC;
    border-bottom: 0.2rem solid #0A4ECC;
}

.header_a {
    line-height: 4rem;
    margin: 0 0.4rem;
    border-bottom: 0.2rem solid transparent;
    text-decoration: none;
    min-width: max-content;
}

.header_narrow_a {
    line-height: 4.5rem;
    margin: 0 0.4rem;
    text-decoration: none;
    min-width: max-content;
    font-size: 1.4rem;
    color: #333;
    border-bottom: 1px solid #eee;
    padding: 0 4vw;
}

.narrow_now {
    color: #0A4ECC;
}

.header_a:hover {
    cursor: pointer;
}

.now {
    color: #f2f2f2;
    border-bottom: 0.2rem solid;
}

.header_a_color_dark {
    color: #333;
}

.header_a_color_dark .now{
    border-color: #0A4ECC;
}

.left_now {
    border-bottom: none;
    border-left: 0.2rem solid #0A4ECC
}

.narrow_header {
    display: none;
}

.narrow_header_button {
    border: none;
    background-color: transparent;
}

.narrow_header_button:active {
    background-color: #eee;
}

.right_header_bar {
    position: fixed;
    top: 0;
    right: 0;
    width: 0;
    height: 100vh;
    background-color: #fff;
    z-index: 1000;
    transition: width 0.3s;
    overflow: hidden;
}

.footer_wide {
    display: block;
}

.footer_narrow {
    display: none;
    width: 100%;
}

.footer_narrow .accordion-item {
    background: transparent;
    border: none;
}

.footer_narrow_button {
    width: 100%;
    background-color: transparent;
    border: none;
    padding: 10px 0;
    border-top: 1px solid #ccc;
    /* border-bottom: 1px solid #333; */
}

.footer_narrow_button_body {
    padding: 0 0.4vw;
    /* height: 0; */
    overflow: hidden;
    transition: height 0.3s;
    background-color: #f4f4f4;
    border-left: 4px solid #fff;
}

.footer_narrow_button_body:hover{
    background-color: #ddd;
}

.footer_narrow_button_body p {
    margin: 10px 0;
}

.footer_narrow_button span {
    transition: 0.3s;
    color: #eee;
}

.rotate {
    transform: rotate(180deg);
}

/* @media (max-width: 800px) {
    .footer_wide {
        display: none;
    }
    .footer_narrow {
        display: block;
    }
} */

@media (max-width: 1000px) {
    .wide_header {
        display: none;
    }
    .narrow_header {
        display: flex;
    }
    .index_header {
        height: 3.5rem;
    }
}

.footer_a {
    text-decoration: none;
    line-height: 2rem;
    padding-right: 1rem;
}

.cs_a {
    text-decoration: none;
    border-bottom: 0.2rem solid #fff;
    line-height: 3rem;
    color: #222;
}

.cs_a:hover {
    cursor: pointer;
    color: #0A4ECC;
    border-bottom: 0.2rem solid #0A4ECC;
}

.hover_a:hover {
    color: #0A4ECC;
    text-decoration: underline;
    transform: scale(1.025);
}

.now_a {
    color: #0A4ECC;
    border-color: #0A4ECC;
}

.tab_content {
    display: none;
}

.tab_now {
    display: block;
}

.padding_header {
    padding: 0 4rem;
}

.header_icon img {
    height: 2.135rem;
}

.join_box_div {
    width: 1rem;
    height: 1rem;
    margin-right: 0.5rem;
    background-color: #0A4ECC;
}

.join_box {
    width: 230px;
    height: 230px;
    background-color: #fff;
    color: #333;
    padding: 1.4rem 0.3rem 1.4rem 1rem;
    border-radius: 4px;
    box-shadow: 0px 6px 8px 2px #33333310;
}

.join_box:hover {
    background-color: #0A4ECC;
    color: #f2f2f2;
}

.join_box p {
    color: #777;
    font-size: 0.9rem;
    line-height: 1.8rem;
}

.join_box:hover .join_box_div{
    background-color: #fff;
}

.join_box:hover p{
    color: #ccc;
}

.join_jd_box {
    padding: 4px 0;
    text-align: left;
    border-top: 1px solid #ddd;
}

.join_jd_box:hover {
    background-color: #f4f4f4;
    cursor: pointer;
}

.join_select {
    border-radius: 4px;
    border: 1px solid #ddd;
    margin-right: 1rem;
    color: #333;
    width: 10rem;
    height: 2rem;
    padding: 0 0.5rem;
}

.join_select:focus-visible {
    outline: #0A4ECC;
    border: 1px solid #0A4ECC;
}

.join_jd_a {
    color: #0A4ECC;
    border-bottom: 1.4px solid #0a4ecc;
}

.join_jd_a:hover {
    cursor: pointer;
    color: #0A4ECC;
    border-color: #0a4ecc;
    transform: scale(1.1);
}

.hover_a_white {
    text-decoration: none;
    color: #999;
}

.hover_a_white:hover {
    color: #f2f2f2;
}

.link_button {
    text-decoration: none;
    padding: 0.8rem 1.6rem;
    border-radius: 0.25rem;
    
}

.bg_blue {
    background: #0A4ECC;
}

.hover_blue:hover {
    background:#409eff;
}