#mainBody {
    --color-red: #EB0A1E;
    --color-blue: #0A42EB;
    --color-yellow: #FCFF00;
    --color-white: #fff;
    --color-black: #000;
    --color-orange: #FF7F48;
}

input,
button,
textarea,
select {
    font: inherit;
    padding: 0;
    border: none;
}

@media (min-width: 641px) {
    #mainBody {
        --header-height: 10.2rem;
    }
    [disp-only]:not([disp-only~='pc']) {
        display: none !important;
    }
    .box_shadow {
        box-shadow: 0.6rem 0.6rem 0 0 var(--color-black);
    }
    @media(hover:hover){
        .hover_opacity {
            transition: opacity .3s;
        }
        .hover_opacity:hover {
            opacity: .7;
        }
    }
}
@media (max-width: 640px) {
    #mainBody {
        --header-height: 6.9rem;
    }
    [disp-only]:not([disp-only~='sp']) {
        display: none !important;
    }
    .box_shadow {
        box-shadow: 0.4rem 0.4rem 0 0 var(--color-black);
    }
}

.fw400 {
    font-weight: 400;
}

.cont_tab_nav {
    position: fixed;
    z-index: 100;
    font-weight: 700;
}
.cont_tab_nav_list {
    display: flex;
    z-index: 2;
}
.cont_tab_nav_link_taikyu {
    --theme-color: var(--color-blue);
}
.cont_tab_nav_link_nur {
    --theme-color: var(--color-yellow);
}
.cont_tab_nav_link_rallyjapan {
    --theme-color: var(--color-red);
}
.cont_tab_nav_link {
    display: flex;
    justify-content: flex-start;
    width: 100%;
    background-color: var(--color-black);
}
.cont_tab_nav_link.is_active .cont_tab_nav_link_inner {
    background-color: var(--theme-color);
}
.cont_tab_nav_link_nur.is_active .cont_tab_nav_link_inner {
    color: var(--color-black);
}
.cont_tab_nav_link .cont_tab_nav_link_ttl,
.cont_tab_nav_link .cont_tab_nav_link_date,
.cont_tab_nav_link .cont_tab_nav_link_arrow::after {
    opacity: 0.5;
}
.cont_tab_nav_link.is_active .cont_tab_nav_link_ttl,
.cont_tab_nav_link.is_active .cont_tab_nav_link_date,
.cont_tab_nav_link.is_active .cont_tab_nav_link_arrow::after {
    opacity: 1;
}
.cont_tab_nav_link_inner {
    display: flex;
    flex-direction: column;
    padding: 1.4rem 0.8rem;
    background: #61818E;
    justify-content: center;
    align-items: flex-start;
    color: var(--color-white);
    width: 100%;
}
.cont_tab_nav_link_arrow {
    background-color: var(--color-black);
    position: relative;
    padding-inline: 0.25rem;
    display: flex;
    justify-content: center;
    align-items: center;
}
.cont_tab_nav_link_arrow::after {
    content: '';
    display: block;
    width: 1rem;
    height: 0.8rem;
    margin: auto;
    background-color: var(--color-white);
    clip-path: polygon(100% 0, 0 0, 50% 100%);
}
@media screen and (min-width:641px) {
    .cont_tab_nav {
        top: 50%;
        translate: 0 -50%;
        right: 0;
    }
    .cont_tab_nav_list {
        gap: 0.8rem 0;
        flex-direction: column;
    }
    .cont_tab_nav_link_ttl {
        font-size: 1.5rem;
    }
    .cont_tab_nav_link_date {
        font-size: 1.2rem;
    }
    .cont_tab_nav_link_inner {
        transition: background-color .3s, color .3s;
    }
    .cont_tab_nav_link_arrow {
        transition: background-color .3s;
        height: 6.85rem;
    }
    .cont_tab_nav_link:hover {
        translate: 0.3rem 0.3rem;
        box-shadow: 0.3rem 0.3rem 0 0 var(--color-black);
        background-color: var(--color-white);
    }
    .cont_tab_nav_link:hover .cont_tab_nav_link_inner {
        background-color: var(--color-white);
    }
    .cont_tab_nav_link:hover .cont_tab_nav_link_arrow {
        background-color: var(--theme-color);
    }
    .cont_tab_nav_link_taikyu:hover .cont_tab_nav_link_inner {
        color: var(--theme-color);
    }
    .cont_tab_nav_link_nur:hover .cont_tab_nav_link_inner {
        background-color: var(--color-white);
        color: var(--color-black);
    }
    .cont_tab_nav_link_nur:hover .cont_tab_nav_link_arrow::after {
        background-color: var(--color-black);
    }
    .cont_tab_nav_link_rallyjapan:hover .cont_tab_nav_link_inner {
        color: var(--theme-color);
    }

    .cont_tab_nav_link_ttl,
    .cont_tab_nav_link_date,
    .cont_tab_nav_link_arrow::after {
        transition: opacity .3s;
    }
    .cont_tab_nav_link:hover .cont_tab_nav_link_ttl,
    .cont_tab_nav_link:hover .cont_tab_nav_link_date,
    .cont_tab_nav_link:hover .cont_tab_nav_link_arrow::after {
        opacity: 1;
    }
}
@media screen and (max-width:640px) {
    .cont_tab_nav {
        bottom: calc(4/390*100vw);
        left: 0;
        width: 100%;
    }
    
    .cont_tab_nav_list {
        gap: 0 calc(8/390*100vw);
        width: 100%;
        flex-direction: row;
        justify-content: center;
    }
    .cont_tab_nav_link {
        flex-direction: column;
    }
    .cont_tab_nav_link_inner {
        width: calc(111/390*100vw);
        align-items: center;
        gap: calc(4/390*100vw);
        padding: calc(4/390*100vw) 0;
    }
    .cont_tab_nav_link_arrow {
        padding-block: 2px;
        width: 100%;
    }
    .cont_tab_nav_link_arrow::after {
        clip-path: polygon(50% 0, 100% 100%, 0% 100%);
    }
    .cont_tab_nav_link_ttl {
        font-size: calc(14/390*100vw);
        line-height: 1;
    }
    .cont_tab_nav_link_date {
        font-size: calc(11/390*100vw);
    }
}

.cont_tab_section:not(.cont_show) {
    display: none;
}

/* loading */
.animation_loaded {
    overflow: hidden;
}
.animation_loaded.loading_end {
    overflow: auto;
}
.loading_end .loading {
    pointer-events: none;
}
.loading {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 200;
    width: 100%;
    height: 100dvh;
    background-color: #fff;
}
.loading_cont {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
.loading_txt {
    position: absolute;
}
.loading_txt img {
    width: 100%;
    height: auto;
}
@media screen and (min-width:641px) {
    .loading_1 {
        background: url(./images/loading_bg1.webp) no-repeat center / cover;
    }
    .loading_1_txt {
        left: calc(40 / 1440 * 100vw);
        bottom: calc(40 / 1440 * 100vw);
        width: calc(843 / 1440 * 100vw);
    }
    .loading_2 {
        background: url(./images/loading_bg2.webp) no-repeat center / cover;
    }
    .loading_2_txt {
        right: calc(44 / 1440 * 100vw);
        top: calc(var(--header-height) + (40 / 1440 * 100vw));
        width: calc(1069 / 1440 * 100vw);
    }
    .loading_3 {
        background: url(./images/loading_bg3.webp) no-repeat center / cover;
    }
    .loading_3_txt {
        left: calc(40 / 1440 * 100vw);
        top: calc(var(--header-height) + (40 / 1440 * 100vw));
        width: calc(778 / 1440 * 100vw);
    }
    .loading_4 {
        background: url(./images/loading_bg4.webp) no-repeat center / cover;
    }
    .loading_4_txt {
        left: 0;
        top: calc(var(--header-height) + (81 / 1440 * 100vw));
        width: 100%;
    }
}
@media screen and (max-width:640px) {
    .loading_1 {
        background: url(./images/loading_bg1_sp.webp) no-repeat center bottom / cover;
    }
    .loading_txt {
        inset-inline: 0;
        margin-inline: auto;
    }
    .loading_1_txt {
        bottom: calc(24 / 390 * 100vw);
        width: calc(318 / 390 * 100vw);
    }
    .loading_2 {
        background: url(./images/loading_bg2_sp.webp) no-repeat center bottom / cover;
    }
    .loading_2_txt {
        top: calc(var(--header-height) + (31 / 390 * 100vw));
        width: calc(335 / 390 * 100vw);
    }
    .loading_3 {
        background: url(./images/loading_bg3_sp.webp) no-repeat center bottom / cover;
    }
    .loading_3_txt {
        top: calc(var(--header-height) + (31 / 390 * 100vw));
        width: calc(341 / 390 * 100vw);
    }
    .loading_4 {
        background: url(./images/loading_bg4_sp.webp) no-repeat center bottom / cover;
    }
    .loading_4_txt {
        top: calc(var(--header-height) + (-17 / 390 * 100vw));
        width: calc(395 / 390 * 100vw);
    }
}


.loading_cont {
    --loading-duration: 0.3s;
    --loading-time: 0s;
}
.loading_cont,
.loading_txt,
.animation_loaded .loading {
    opacity: 0;
}
.loading_txt {
    transition: opacity 0.3s;
}
.loading_cont {
    transition: opacity 0.5s;
}
.loading_1 {
    opacity: 1;
    --loading-time: -0.3s;
}
.loading_2 {
    --loading-time: 1.2s;
}
.loading_3 {
    --loading-time: 2.7s;
}
.loading_4 {
    --loading-time: 4.2s;
}
.loading {
    transition: opacity 0.8s 6s;
}
.loading_cont {
    transition-delay: var(--loading-time);
}
.loading_txt {
    transition-delay: calc(var(--loading-time) + 0.6s);
}
.animation_loaded .loading_cont,
.animation_loaded .loading_txt {
    opacity: 1;
}