@charset "UTF-8";

;*, *::before, *::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

html {
    font-size: 62.5%;
    scroll-behavior: smooth;
}

:root {
    --font-base: 'Zen Kaku Gothic New', sans-serif;

    --color-main: #0062B2;
    --color-sub: #009BB2;
    --color-accent: #FFF47A;

    --color-sub-50: rgba(0, 155, 178, 0.5);

    --bg-main: #AED5D9;
    --bg-blue: #0062B2;
    --bg-white: #F5F6EF;
    --bg-skyblue: #D3ECF0;

    --text-main: #231814;
    --text-sub: #F5F6EF;

    --fw-regular: 400;
    --fw-bold: 700;

    --fz-h2: 2.4rem;
    --lh-h2: 1.667;

    --fz-h3: 2rem;
    --lh-h3: 2;

    --fz-section: 1.8rem;
    --lh-section: 2.222;

    --fz-explanation: 1.6rem;
    --lh-explanation: 2.5;

    --fz-follow: 1.5rem;
    --lh-follow: 2.667;

    --fz-history: 1.3rem;
    --lh-history: 2.308;

    --fz-sp-history: 1rem;
    --lh-sp-history: 2;

    --section-space: 27rem;
}

body {
    width: 100%;
    margin: 0;
    padding: 0;
    font-size: 1.6rem;
    line-height: 2.5;
    font-family: var(--font-base);
    background-color: var(--bg-main);
    color: var(--text-main);
}

.zen-kaku-gothic-new-regular {
    font-family: "Zen Kaku Gothic New", sans-serif;
    font-weight: 400;
    font-style: normal;
}

.zen-kaku-gothic-new-bold {
    font-family: "Zen Kaku Gothic New", sans-serif;
    font-weight: 700;
    font-style: normal;
}

p {
    line-height: 2.2;
}

a {
    text-decoration: none;
    color: inherit;
    cursor: pointer; 
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1040px;
    margin: 0 auto;

    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 2rem;
    gap: 5rem;
}

.title {
    display: flex;
    align-items: center;
    text-align: center;
    justify-content: center;
    font-size: var(--fz-h2);
    line-height: var(--lh-h2);
    font-weight: var(--fw-bold);
    color: var(--bg-blue);
}

.top_title_box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.sp_br {
    display: none;
}

.sp_br_small {
    display: none;
}

/* header */
.header {
    width: 100%;
    height: 70px;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;

    position: relative;
    z-index: 1000;
    overflow-x: clip;
}

.header_logo {
    flex: 1;
    min-width: 0;
    max-width: calc(100% - 42px);
}

.header_nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.mainnav {
    display: flex;
    align-items: center;
    white-space: nowrap;
    gap: 2rem;
}

.mainnav_item_text {
    font-size: var(--fz-explanation);
    font-weight: var(--fw-bold);
    color: var(--color-main);
}

.mainnav_item a:hover {
    opacity: 0.6;
}

.sp_mainnav_icon {
    display: none;
}

.sp_mainnav_line {
    display: none;
}

.header_donation_btn {
    width: 140px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    color: var(--color-main);
    border-radius: 1rem;
    text-decoration: none;
    cursor: pointer;
    flex-shrink: 0;

    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-origin: center center;
}

.header_donation_btn:hover {
    transform: scale(1.1);
}

.header_donation_btn:active {
    transform: scale(0.95);
}

.header_hamburger_wrapper {
    display: none;
}

/* kv */
.kv {
    position: relative;
    width: 100%;
    aspect-ratio: 1440 / 700;
    max-width: 1440px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
    margin-bottom: var(--section-space);
    overflow: hidden;
}

.kv_layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.main_illust {
    position: absolute;
    top: 50%;
    left: 51%;
    transform: translate(-52%, -65%);
}

.main_pulse {
    animation: main_pulse_move 8s infinite ease-in-out;
}

@keyframes main_pulse_move {
    0% {transform: scale(1);}
    50% {transform: scale(1.05);}
    100% {transform: scale(1);}
}

.deco_illust.left_top {
    position: absolute; top: -1%; left: 3%;
}

.deco_illust.left_middle {
    position: absolute; top: 45%; left: 6%;
}

.deco_illust.left_bottom {
    position: absolute; top: 50%; left: 12%;
}

.deco_illust.right_top {
    position: absolute; top: 3%; right: 16%;
}

.deco_illust.right_middle {
    position: absolute; top: 20%; right: 3%;
}

.deco_illust.right_bottom {
    position: absolute; top: 60%; right: 20%;
}

.deco_illust {
    position: absolute;
}

.fuwa_box {
    animation: fuwafuwa infinite ease-in-out;
}

.left_top .fuwa_box { animation-duration: 7s; }
.left_middle .fuwa_box { animation-duration: 5s; animation-delay: -1s; }
.left_bottom .fuwa_box { animation-duration: 8s; animation-delay: -3s; }

.right_top .fuwa_box { animation-duration: 6s; }
.right_middle .fuwa_box { animation-duration: 9s; animation-delay: -2s; }
.right_bottom .fuwa_box { animation-duration: 4s; }

@keyframes fuwafuwa {
    0%   { transform: translate(0, 0); }
    50%  { transform: translate(10px, -10px); }
    100% { transform: translate(0, 0); }
}

.kv_photo {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    padding: 0 2rem;
    gap: 4rem;
}

.photo_block {
    position: relative;
    width: 100%;
}

.photo_block.left {
    max-width: 300px;
    transform: translate(-18px, 8px);
}

.photo_block.center {
    max-width: 590px;
    transform: translate(-40px, -74px);
}

.photo_block.right {
    max-width: 350px;
    transform: translate(-40px, -130px);
}

.photo {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: auto;
    opacity: 0;
    animation: fadeSwitch 12s infinite ease-in-out;
}

.photo.active {
    position: relative;
    opacity: 1;
}

.photo:nth-child(2) {
    animation-delay: -6s;
}

@keyframes fadeSwitch {
    0%   { opacity: 1; }
    45%  { opacity: 1; }
    55%  { opacity: 0; }
    95%  { opacity: 0; }
    100% { opacity: 1; }
}

.sp_catch {
    display: none;
}

.catch {
    position: absolute;
    bottom: 10vh;
    z-index: 950;
}

.scroll_sign {
    position: absolute;
    bottom: 4vh;
    max-width: 50px;
    height: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.1rem;
    z-index: 1600;
}

.scroll_text {
    font-size: var(--fz-follow);
    line-height: var(--lh-follow);
    font-weight: var(--fw-bold);
    color: var(--bg-skyblue);
    text-align: center;
}

.scroll_wave {
    max-width: 50px;
}

/* 固定nami_up */
.sp_nami_fixed_up {
    display: none;
}

.nami_fixed_up {
    position: fixed;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1200;

    width: 120%;
    height: 160px;
    display: block;
    overflow: hidden;
}

.nami_fixed_up img.nami_blue_up {
    position: absolute !important;
    bottom: -8px !important;
    left: 50% !important;
    display: block !important;
    
    width: 110%;
    max-width: none;
    height: auto;
    z-index: 2;
    animation: wave-move 6s infinite ease-in-out;
}

.nami_fixed_up img.nami_skyblue_up {
    position: absolute !important;
    bottom: 15px !important;
    left: 50% !important;
    display: block !important;
    
    width: 110%;
    max-width: none;
    height: auto;
    z-index: 1;
    animation: wave-move 7s infinite ease-in-out; 
}

@keyframes wave-move {
    0% { transform: translate(-50%, 0); }
    50% { transform: translate(calc(-50% + 25px), 7px); }
    100% { transform: translate(-50%, 0); }
}

.nami_fixed_up.is-stopped {
    position: absolute;
    top: -120px;
    bottom: auto;
}

/* about */
.about {
    overflow: hidden;
    width: 100%;
    max-width: 1038px;

    margin: 0 auto var(--section-space);
    padding: 0 2.5rem;
}

.about .container {
    position: relative;
    background-color: var(--bg-white);
    border-radius: 20rem;
    padding: 11rem 5rem;
    gap: 2rem;
}

.about .top_title_box {
    gap: 1.5rem;
}

.about_text {
    text-align: center;
}

.about_text_box {
    margin-bottom: 5rem;
}

.bold_sky {
    font-weight: var(--fw-bold);
    color: var(--color-sub);
}

.bold_blue {
    font-weight: var(--fw-bold);
    color: var(--color-main);
}

.btn_blue {
    width: 100%;
    max-width: 265px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-sub);
    color: var(--text-sub);
    font-weight: var(--fw-bold);
    border-radius: 1rem;
    text-decoration: none;
    cursor: pointer;
    flex-shrink: 0;

    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-origin: center center;
}

.btn_blue:hover {
    transform: scale(1.05);
}

.btn_blue:active {
    transform: scale(0.95);
}

.top_about_illust_top {
    position: absolute;
    max-width: 200px;
    width: 30%;
    top: -10px;
    left: -20px;
    transform: rotate(30deg);
}

.top_about_illust_bottom {
    position: absolute;
    max-width: 203px;
    width: 25%;
    bottom: 10px;
    right: -20px;
    transform: rotate(60deg);
}

/* nami_section_up */
.sp_nami_section_up {
    display: none;
}

.nami_section_up {
    position: relative;
    bottom: -5px;
    left: 0;

    width: 100%;
    height: 200px;
    display: block;
    overflow: hidden;
}

.nami_section_up img.nami_blue_up {
    position: absolute !important;
    bottom: -2px !important;
    left: 50% !important;
    display: block !important;
    
    width: 130%;
    max-width: none;
    height: auto;
    z-index: 2;
    animation: wave-move 6s infinite ease-in-out;
}

.nami_section_up img.nami_skyblue_up {
    position: absolute !important;
    bottom: 20px !important;
    left: 50% !important;
    display: block !important;
    
    width: 130%;
    max-width: none;
    height: auto;
    z-index: 1;
    animation: wave-move 7s infinite ease-in-out; 
}

@keyframes wave-move {
    0% { transform: translate(-50%, 0); }
    50% { transform: translate(calc(-50% + 25px), 7px); }
    100% { transform: translate(-50%, 0); }
}

/* activities */
.activities {
    background-color: var(--bg-blue);
    padding: 10rem 0;

    position: relative;
    height: 330vh;    
}

.activities .container {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;

    width: 100%;
    max-width: 1040px;
    margin: 0 auto;
    height: 100%;
}

.activities_text_box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3rem;

    width: 45%;
    height: 566px;
    position: sticky;
    top: 7vh;
    flex-shrink: 0;
}

.top_activities_title_text {
    color: var(--text-sub);
}

.activities_text {
    display: flex;
    align-items: center;
    text-align: center;
    justify-content: center;
    font-size: var(--fz-section);
    line-height: var(--lh-section);
    color: var(--text-sub);
}

.activities_number_icon_box {
    width: 100%;
    max-width: 175px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.activities_number_icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    width: 100%;
    max-width: 45px;
    height: 45px;

    font-size: var(--fz-h2);
    line-height: var(--lh-h2);
    font-weight: var(--fw-bold);
    color: var(--color-main);
    background-color: var(--bg-white);

    border-radius: 50%;
}

.btn_yellow {
    width: 100%;
    max-width: 265px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    color: var(--color-main);
    font-weight: var(--fw-bold);
    border-radius: 1rem;
    text-decoration: none;
    cursor: pointer;
    flex-shrink: 0;

    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-origin: center center;
}

.btn_yellow:hover {
    transform: scale(1.05);
}

.btn_yellow:active {
    transform: scale(0.95);
}

.activities_card_box {
    width: 50%;
    height: fit-content;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.card_1 {
    width: 100%;
    max-width: 600px;
    height: 566px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 7rem;
    gap: 2rem;

    background: var(--bg-white);
    border-radius: 7rem;
    box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.05);

    position: sticky;
    top: 7vh;
    margin-bottom: 40vh;
    z-index: 1;
}

.card_1:nth-child(1) {
    top: 7vh;
    z-index: 1;
}

.card_1:nth-child(2) {
    top: calc(7vh + 30px);
    z-index: 2;
}

.card_1:nth-child(3) {
    top: calc(7vh + 60px);
    margin-bottom: 40vh;
    z-index: 3;
}

.card_activities_number {
    font-size: 4rem;
    line-height: 1;
    font-weight: var(--fw-bold);
    color: var(--color-main);
}

.card_activities_title {
    font-size: var(--fz-h3);
    line-height: var(--lh-h3);
    font-weight: var(--fw-bold);
    color: var(--color-main);
}

.card_activities_text {
    width: 100%;
    max-width: 482px;
    font-size: var(--fz-explanation);
    line-height: var(--lh-explanation);
    font-weight: var(--fw-regular);
    color: var(--text-main);
}

.card_activities_photo {
    max-width: 400px;
}

/* nami_section_down */
.sp_nami_section_down {
    display: none;
}

.nami_section_down {
    position: relative;
    width: 130%;
    height: 200px;
    display: block;
    overflow: hidden;
    margin-top: -2rem;
    margin-bottom: var(--section-space);
    z-index: 2;
}

.nami_section_down img.nami_blue_down {
    position: absolute !important;
    top: -5px !important;
    left: 50% !important;
    display: block !important;
    
    width: 130%;
    max-width: none;
    height: auto;
    z-index: 2;
    animation: wave-move 6s infinite ease-in-out;
}

.nami_section_down img.nami_skyblue_down {
    position: absolute !important;
    top: 30px !important;
    left: 50% !important;
    display: block !important;
    
    width: 130%;
    max-width: none;
    height: auto;
    z-index: 1;
    animation: wave-move 7s infinite ease-in-out; 
}

@keyframes wave-move {
    0% { transform: translate(-50%, 0); }
    50% { transform: translate(calc(-50% + 25px), 7px); }
    100% { transform: translate(-50%, 0); }
}


/* schedule */
.schedule {
    margin-bottom: var(--section-space);
}

.google_calendar {
    width: 100%;
    max-width: 100%;
    height: 600px;
    display: block;
    overflow: hidden;
    border-radius: 3rem;
}

.google_calendar iframe {
    display: block;
    width: 100%;
    height: 600px;
    border: none;
    filter: contrast(1) saturate(0.9);
}

.calendar_fallback {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-top: -2rem;
}

.calendar_fallback p {
    text-align: center;
    font-size: var(--fz-sp-history);
    line-height: 1.5;
    font-weight: var(--fw-bold);
    color: var(--color-main);
}

.google_link {
    font-weight: var(--fw-bold);
    color: var(--color-sub);
    text-decoration: underline;
}

/* nami label */
.label_nami_youkai {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    left: 0;
    width: 100%;
    height: 70%;
    overflow: hidden;
    margin-bottom: var(--section-space);
}

.label_nami_set {
    width: 110%;
    max-width: 1600px;
    display: block;
    z-index: 80;
}

.label_nami_set img {
    position: absolute;
    left: 50%;
    width: 110%;
    max-width: none;
    height: auto;
}

.label_nami_lightblue {
    top: -10px;
    animation: wave-move 6s infinite ease-in-out;
}

.label_nami_skyblue {
    top: 18px;
    animation: wave-move 7s infinite ease-in-out;
}

@keyframes wave-move {
    0% { transform: translate(-50%, 0); }
    50% { transform: translate(calc(-50% + 25px), 7px); }
    100% { transform: translate(-50%, 0); }
}


/* umigomi_youkai_slider */
/* slider */
.slider_container {
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 350px;
    z-index: 999;
    margin-top: 1.5rem;
}

.slider_youkai_set,
.slider_gomi_set {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
}

.slider_list {
    display: flex;
    gap: 5rem;
    width: max-content;
    animation: infinity-scroll 90s linear infinite;
}

@keyframes infinity-scroll {
    from { transform: translateX(-50%); }
    to { transform: translateX(0); }
}

.slider_youkai_set {
    z-index: 1000;
    clip-path: inset(2% 40% 2% 40% round 12rem);
    background-color: var(--bg-skyblue);
}

.slider_gomi_set {
    z-index: 900;
    margin-top: 4rem;
}

.slider_list li {
    width: 200px;
    flex-shrink: 0;
}

.slider_list img {
    width: 100%;
    height: auto;
    display: block;
}

.slider_gomi_set img {
    width: 80%;
}

/* news */
.news {
    background-color: var(--bg-blue);
    padding: 10rem 0;
}

.top_news_title {
    color: var(--text-sub);
}

.news_card_box {
    width: 100%;
    max-width: 1040px;
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 4rem;
    margin: 0 auto;
}

.card_2 {
    position: relative;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    gap: 3rem;

    background-color: var(--bg-skyblue);
    width: 100%;
    flex: 1;
    max-width: 500px;
    min-width: 0;
    border-radius: 2rem;
    box-sizing: border-box;
}

.card_news_text {
    width: 100%;
    max-width: 380px;
    text-align: center;
    font-size: var(--fz-section);
    line-height: var(--lh-section);
}

/* note */
#note-rss-container {
    width: 100%;
    max-width: 440px;
    height: auto;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4rem;
    overflow: visible;
}

.note_item {
    text-decoration: none;
    color: inherit;
    display: block;
}

.note_item:hover {
    transform: scale(1.05);
}

.note_item:active {
    transform: scale(0.95);
}

.note_card {
    width: 100%;
    max-width: 440px; 
    height: auto;
    min-height: 140px;
    padding: 15px 22px;
    box-sizing: border-box;
    
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background-color: var(--bg-white);
    border-radius: 1rem;
}

.note_img_box {
    display: flex;
    justify-content: center;
    width: 100%;
    max-width: 160px;
    min-height: 110px;
    flex-shrink: 0;
}

.note_img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0.6rem;
}

/* テキスト部分の調整 */
.note_content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex-grow: 1;
    overflow: hidden;
}

.note_title {
    font-size: 1.6rem;
    line-height: 2;
    font-weight: bold;
    margin: 5px 0;
    line-height: 1.5 !important;
    height: auto;
    color: var(--text-main);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.note_date {
    font-size: 1.4rem;
    color: #999;
}

.note_text {
    font-size: 1.4rem;
    color: var(--text-main);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* instagram */
.insta_bubble {
    position: absolute;
    top: 30px;
    right: -20px;
}

.card_news_link {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.insta_photo {
    width: 100%;
    max-width: 150px;
    aspect-ratio: 1 / 1;
    object-fit: cover;
}

/* donation */
.donation {
    padding: 10rem 10rem 5rem 10rem;
    background-color: var(--bg-white);
    border-radius: 10rem;
    margin: 0 2rem 20rem 2rem;
}

.donation .container {
    margin-bottom: 1rem;
}

.donation_title_sub {
    text-align: center;
    font-size: var(--fz-h3);
    line-height: var(--lh-h3);
    font-weight: var(--fw-bold);
    color: var(--color-main);
}

.donation_text {
    text-align: center;
    font-size: var(--fz-section);
    line-height: var(--lh-section);
}

.donation_box {
    width: 100%;
    max-width: 1040px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4rem;
}

.card_3 {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;

    width: 100%;
    max-width: 320px;
    height: 300px;
    border-radius: 2rem;

    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-origin: center center;
}

.card_3:hover {
    transform: scale(1.05);
}

.card_3:active {
    transform: scale(0.95);
}

.card_3.bc {
    background-color: #80BA39;
}

.card_3.individual {
    background-color: rgba(8, 156, 219, 0.8)
}

.card_3.corporation {
    background-color: rgba(0, 155, 178, 0.8)
}

.card_donation_text {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.card_donation_sub_title {
    font-size: var(--fz-h3);
    line-height: var(--lh-h3);
    color: var(--text-sub);
}

.card_donation_sub_title.bc {
    font-size: var(--fz-explanation);
    line-height: 1.438;
    text-align: center;
}

.card_donation_title {
    font-size: 3.2rem;
    font-weight: var(--fw-bold);
    color: var(--text-sub);
}

.participate_comment_sp {
    display: none;
}

.participate_comment_pc {
    max-width: 300px;

    align-self: flex-start;
    margin-top: -4rem;

    font-size: 1.3rem;
    line-height: 1.8;
    font-weight: var(--fw-bold);
    color: #80BA39;
}

/* privacy */
.privacy {
    padding: 10rem 5rem;
    background-color: var(--bg-white);
    border-radius: 10rem;
    margin: 10rem 10rem 20rem;
}

.privacy_inner {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 5rem;
}

.privacy_box {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 2rem;
}

.privacy_title {
    color: var(--color-main);
    font-size: var(--fz-h3);
    line-height: var(--lh-h3);
    font-weight: var(--fw-bold);
    text-align: center;
}

.privacy_text {
    text-align: start;
}

.privacy_uminohi_link {
    color: var(--color-main);
    text-decoration: underline;
}

/* footer */
.footer {
    position: relative !important;
    width: 100%;
    padding-top: 7rem;
    padding-bottom: 2rem;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;

    color: var(--text-sub);
    background-color: var(--bg-blue);
}

.footer_inner_box {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 4rem;
}

.footer_text {
    width: 100%;
    max-width: 1100px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 15rem;
    margin-bottom: 3rem;
}

.footer_left {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 2rem;
}

.fuudo_logo {
    width: 100%;
    max-width: 99px;
}

.fuudo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 3rem;
}

.fuudo_text {
    line-height: 2;
}

.fuudo_items {
    display: flex;
    gap: 2.4rem;
}

.fuudo_info {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 1rem;
}

.fuudo_name {
    font-size: var(--fz-section);
    line-height: var(--lh-section);
    font-weight: var(--fw-bold);
}

.fuudo_address {
    font-size: var(--fz-history);
    line-height: var(--lh-history);
}

.footer_right {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 7rem;
}

.footer_menu_box {
    display: flex;
    flex-direction: column;
    color: var(--text-sub);
    gap: 2rem;
}

.footer_menu_title {
    font-size: var(--fz-section);
    line-height: var(--lh-section);
    font-weight: var(--fw-bold);
}

.footer_menu_items {
    font-size: var(--fz-history);
    line-height: var(--lh-history);
    gap: 1rem;
}

.footer_menu_donation_box {
    display: flex;
    flex-direction: column;
    color: var(--text-sub);
    gap: 2rem;
}

.footer_menu_icon {
    width: 100%;
    max-width: 95px;

    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
}

.footer_bottom_box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.footer_bottom {
    display: flex;
    text-align: center;
    font-size: var(--fz-history);
    line-height: var(--lh-history);
    color: var(--text-sub);
    gap: 1rem;
}

.footer_bottom_text {
    position: relative;
    padding:  0 20px;
}

.footer_bottom_text:not(:last-child)::after {
    content: '';
    position: absolute;
    width: 1px;
    height: 13px;
    background-color: var(--bg-white);

    top: calc(50% + 1px);
    right: -8px;
    transform: translateY(-50%);
}

.copyright {
    text-align: center;
    font-size: var(--fz-history);
    line-height: var(--lh-history);
    color: var(--text-sub);
}

/* follow btn */
.sp_br_follow {
    display: none;
}

.follow_btn {
    display: flex;
    flex-direction: column;
}

.follow_top_btn {
    width: 77px;
    height: 76px;
    font-size: var(--fz-follow);
    line-height: var(--lh-follow);
    font-weight: var(--fw-bold);
    color: var(--text-sub);
    
    text-align: center;
    display: block;
    background: transparent;
    background-image: url(../images/followbtn_base_top.png);
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
    padding: 15px 25px 20px;
    
    position: fixed;
    right: 0.5%;
    bottom: 11%;
    z-index: 1500;

    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-origin: center center;
}

.follow_top_btn:hover {
    transform: scale(1.1);
}

.follow_top_btn:active {
    transform: scale(0.95);
}

.follow_donation_btn {
    width: 125px;
    height: 120px;
    font-size: var(--fz-follow);
    line-height: var(--lh-follow);
    font-weight: var(--fw-bold);
    color: var(--color-main);

    text-align: center;
    display: block;
    background: transparent;
    background-image: url(../images/followbtn_base_donate.png);
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
    padding: 45px 30px;

    position: fixed;
    right: 3.5%;
    bottom: 0.5%;
    z-index: 1500;

    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-origin: center center;
}

.follow_donation_btn:hover {
    transform: scale(1.1);
}

.follow_donation_btn:active {
    transform: scale(0.95);
}

/* page_donation */
.donation_section_box {
    margin: 3rem 2rem 20rem 2rem;
    padding: 5rem;
    background-color: var(--bg-white);
    border-radius: 10rem;
}

.donation_use {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0 10rem 10rem 10rem;
}

.donation_use .top_title_box {
    gap: 1.5rem;
}

.donation_use_text {
    width: 100%;
    max-width: 796px;
    text-align: center;
    font-size: var(--fz-section);
    line-height: var(--lh-section);
}

.donation_use_box {
    width: 100%;
    max-width: 1040px;
    display: flex;
    gap: 2rem;
}

.card_donation_use {
    flex: 1;
    width: 100%;
    max-width: 320px;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    padding: 3rem 2rem;
    gap: 4rem;
    box-sizing: border-box;

    background: var(--bg-skyblue);
    border-radius: 1.5rem;
}

.card_donation_use.event {
    gap: 2.4rem;
}

.card_donation_use_title {
    text-align: center;
    font-size: var(--fz-h3);
    line-height: var(--lh-h3);
    font-weight: var(--fw-bold);
    color: var(--color-main);
}

.card_donation_use_text {
    width: 100%;
    max-width: 275px;
    text-align: center;
    font-size: var(--fz-explanation);
    line-height: var(--lh-explanation);
    font-weight: var(--fw-regular);
    color: var(--text-main);
}

.card_activities_photo {
    max-width: 270px;
    height: 200px;
}

/* aboutpage */
/* concept */
.aboutpage_about {
    margin-top: 10rem;
    margin-bottom: var(--section-space);
}

.aboutpage_about .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10rem;

    width: 100%;
    max-width: 1440px;
}

.aboutpage_about h3 {
    font-size: var(--fz-h3);
    line-height: var(--lh-h3);
    color: var(--color-sub);
}

.about_title_box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.concept_text {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    justify-content: center;
    gap: 2.5rem;
}

.concept_mission_box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-white);
    border-radius: 25rem;
    transform: translateX(-90px);
    padding: 7rem 10rem 10rem;
    gap: 5rem;
}

.mission_deco_box {
    position: relative;
}

.mission_photo_box {
    position: absolute;
    right: calc(50% - 46vw);
    bottom: 19rem;
    width: 411px;
    max-width: 30vw;
}

.mission_photo_box img {
    width: 100%;
    height: auto;
}

.concept_value_box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-white);
    border-radius: 32rem;
    transform: translateX(160px);
    padding: 10rem 20rem;
    gap: 5rem;
}

.value_deco_box {
    display: flex;
    justify-content: flex-end;
    position: relative;
}

.value_photo_box {
    position: absolute;
    left: calc(50% - 37vw);
    bottom: 28rem;
    width: 350px;
    max-width: 25vw;
}

.value_photo_box img {
    width: 100%;
    height: auto;
}

.vision_box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-white);
    border-radius: 15rem;
    padding: 10rem 5rem;
    gap: 5rem;

    width: 92%;
    max-width: 1100px;
    margin-top: 10rem;
    margin-left: auto;
    margin-right: auto;
    position: relative;
}

.vision_box .concept_text {
    width: 100%;
    max-width: 500px;
}

.vision_illust_left {
    position: absolute;
    bottom: 5rem;
    left: -12rem;
}

.ecosystem_box {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 4rem;
    width: 100%;
}

.ecosystem_link_box {
    align-items: flex-start;
    position: relative;
}

.vision_illust_right {
    position: absolute;
    right: -27rem;
    top: -17rem;
    transform: rotate(60deg);
}

.zoom_link {
    display: block;
    transition: 0.3s;
}

.zoom_link:hover {
    opacity: 0.8;
}

.ecosystem_img img {
    max-width: 100%;
    height: auto;
}

.ecosystem_link {
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.ecosystem_link_text {
    line-height: 1.5;
    font-weight: var(--fw-bold);
    color: var(--color-main);
}

/* history */
.sp_history_year {
    display: none;
}

.history {
    margin: 10rem 2rem var(--section-space);
}

.history .container {
    width: 100%;
    max-width: 1300px;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-white);
    border-radius: 10rem;
    padding: 10rem 3rem;
    gap: 5rem;
}

.history_subtitle {
    text-align: center;
    font-size: var(--fz-h3);
    line-height: var(--lh-h3);
    color: var(--color-main);
}

.history_box {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 7rem;
    margin-left: 4rem;
    width: 100%;
    max-width: 1100px;
}

.history_inner_box {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 2rem;

    width: 100%;
    max-width: 460px;
}

.history_year_box {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0.5rem;
}

.history_topic_box {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
}

.year {
    font-size: var(--fz-h2);
    line-height: var(--lh-h2);
    font-weight: var(--fw-bold);
    color: var(--color-sub);
}

.topic_name {
    font-size: var(--fz-section);
    line-height: var(--lh-section);
    font-weight: var(--fw-bold);

    background-color: var(--color-sub);
    color: var(--bg-white);
    padding: 0 1rem;
    border-radius: 1rem;
}

.history_contents_box {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    margin-left: 1rem;
    gap: 1.0rem;
    width: 100%;
}

.month {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: flex-start;
}

.month p {
    font-size: var(--fz-history);
    line-height: var(--lh-history);
    font-weight: var(--fw-bold);
    color: var(--color-sub);
}

.history_contents p {
    font-size: var(--fz-history);
    line-height: var(--lh-history);
}

.history_photo_label {
    display: flex;
    overflow: hidden;
    width: 100%;
    background: transparent;
}

.loop_track {
    display: flex;
    gap: 3rem;
    padding-right: 3rem;
    flex-shrink: 0; 
    min-width: max-content;
    animation: slide_right_to_left 40s linear infinite;
}

@keyframes slide_right_to_left {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-100%);
    }
}

.loop_track img {
    flex-shrink: 0;
    width: 250px;
    height: 180px;
    object-fit: cover;
}

.history_photo_label:hover .loop_track {
    animation-play-state: paused;
}

.achievements {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 4rem;
}

.achievements_box {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 1rem;
}

.achievements_topic {
    font-size: var(--fz-section);
    line-height: var(--lh-section);
    font-weight: var(--fw-bold);

    background-color: var(--color-main);
    color: var(--bg-white);
    padding: 0 1rem;
    border-radius: 1rem;
}

.achievements_box p {
    font-size: var(--fz-history);
    line-height: var(--lh-history);
}

.achievements_contents_box {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 1rem;
}

.achievements_year {
    font-size: var(--fz-h2);
    line-height: var(--lh-h2);
    font-weight: var(--fw-bold);
    color: var(--color-main);
}

/* message */
.message {
    margin: 10rem 2rem var(--section-space);
}

.message .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-skyblue);
    border-radius: 10rem;
    padding: 10rem;
    gap: 5rem;
}

.message_box {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 5rem;
}

.message_photo {
    width: 100%;
    max-width: 300px;
}

.message_text_box {
    display: flex;
    flex-direction: column;
    text-align: start;
    gap: 5rem;
}

.message_text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    width: 100%;
    max-width: 655px;
    gap: 3rem;
}

.message_person {
    text-align: end;
}

/* about_fuudo */
.about_fuudo {
    margin: 10rem 2rem var(--section-space);
}

.about_fuudo .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-white);
    border-radius: 10rem;
    padding: 10rem;
    gap: 5rem;
}

.about_fuudo_box {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 7rem;
}

.about_fuudo_text {
    text-align: center;
}

.about_fuudo_link_box {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6rem;
}

.about_fuudo_logo {
    width: 100%;
    max-width: 177px;
}

.about_fuudo_btn_box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;

    width: 100%;
    max-width: 247px;
}

/* activitiespage */
.activitiespage {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20rem;
    margin-bottom: 10rem;
}

.activitiespage_activities {
    margin-top: 10rem;
    margin-bottom: 15rem;
}

.activitiespage_activities .container {
    width: 100%;
    max-width: 1240px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10rem;
}

.activitiespage_title {
    width: 100%;
    max-width: 403px;
}

/* umigomizero */
.umigomi_zero_sp_separater {
    display: none;
}

.umigomi_zero {
    width: 100%;
    max-width: 1240px;
    background-color: var(--bg-white);
    border-radius: 10rem;
    padding: 10rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10rem;
}

.activitiespage_title_box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.activitiespage_topic_number {
    color: var(--color-main);
    font-size: 3.5rem;
    line-height: var(--lh-h2);
    font-weight: var(--fw-bold);
}

.activitiespage_topic {
    color: var(--color-sub);
    font-size: var(--fz-h3);
    line-height: var(--lh-h3);
    font-weight: var(--fw-bold);
}

.activitiespage_text_decobox {
    position: relative;
}

.umigomi_zero_deco_left {
    position: absolute;
    top: -15rem;
    left: -17rem;
}

.umigomi_zero_deco_right {
    position: absolute;
    top: -18rem;
    right: -36rem;
}

.umigomi_zero_deco_right img {
    width: 50%;
}

.activitiespage_text {
    text-align: center;
}

/* data */
.data {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4rem;
    padding: 7rem 12rem 3rem;

    background-color: var(--bg-skyblue);
    border-radius: 10rem;
}

.data_title_decobox {
    position: relative;
}

.data_title_deco {
    position: absolute;
    top: -3rem;
    left: -9rem;
}

.data_title_deco img {
    width: 40%;
}

.data_title_box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.data_title {
    font-size: var(--fz-section);
    line-height: var(--lh-section);
    font-weight: var(--fw-bold);
    color: var(--color-main);
}

.data_cards {
    display: flex;
    align-items: center;
    justify-content: center;
    max-height: 262px;
    gap: 2rem;
}

.sp_data_cards {
    display: none;
}

/* beachclean */
.umigomi_zero_box {
    width: 100%;
    max-width: 1036px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 2.5rem;
}

.gomizero_title_box {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 1rem;
}

.gomizero_title_icon {
    width: 60px;
    height: 60px;

    font-size: var(--fz-follow);
    line-height: 1.3;
    font-weight: var(--fw-bold);
    color: var(--bg-white);

    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-sub);
    border-radius: 50%;
}

.gomizero_title_inner_box {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 1rem;
}

.gomizero_topic {
    font-size: 1.5rem;
    line-height: 1;
    font-weight: var(--fw-bold);
}

.gomizero_title {
    font-size: var(--fz-h3);
    line-height: 1;
    color: var(--color-sub);
    font-weight: var(--fw-bold);
}

.gomizero_text {
    text-align: start;
}

.gomizero_photo_box {
    display: grid;
    grid-template-columns: repeat(4, 1fr); 
    gap: 1.2rem;
    margin-bottom: 2rem;
    width: 100%;
}

.gomizero_photo_box img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.bc_btn_box {
    width: 100%;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    align-self: center;
    justify-content: center;
    gap: 1rem;
}

.bc_btn_info {
    position: absolute;
    right: 5rem;
}

.sp_bc_btn_info {
    display: none;
}

/* badukuri */
.badukuri_btn_box {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    align-self: center;
    justify-content: center;
}

/* kyousou */
.kyousou {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.kyousou_box {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 3rem;
}

.kyousou_inner_box {
    width: 100%;
    max-width: 500px;
    height: auto;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;

    background-color: var(--bg-skyblue);
    border-radius: 5rem;
    padding: 3rem;
}

.umigomi_youkai_title_decobox {
    position: relative;
}

.umigomi_youkai_title_left {
    position: absolute;
    top: -5rem;
    left: -19rem;
}

.umigomi_youkai_title_right {
    position: absolute;
    top: -5rem;
    right: -19.5rem;
}

.kyousou_title {
    font-size: var(--fz-h3);
    line-height: var(--lh-h3);
    font-weight: var(--fw-bold);
    color: var(--color-main);
    margin-top: 2rem;
    margin-bottom: -1rem;
}

.umigomi_youkai_photo_box {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}

.umigomi_youkai_btn_box {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    align-self: center;
    justify-content: center;
}

.kaishu_photo_box {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

/* amamo */
.amamo {
    background-color: var(--bg-white);
    border-radius: 10rem;
    padding: 10rem;
    width: calc(100% - 4rem);
    max-width: 1240px;
    margin-inline: auto;
    margin-top: 0;
    margin-bottom: 15rem;
}

.amamo .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5rem;
}

.amamo_btn {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: -3rem;
}

/* kyousei_site */
.kyousei {
    background-color: var(--bg-white);
    border-radius: 10rem;
    padding: 10rem;
    width: calc(100% - 4rem);
    max-width: 1240px;
    margin-inline: auto;
    margin-top: 0;
    margin-bottom: 15rem;
}

.kyousei .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5rem;
}

.kyousei_inner_box {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 5rem;
}

.kyousei_left_box {
    width: 100%;
    max-width: 660px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 3rem;
}

.kyousei_text_box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 2rem;
}

.kyousei_text_info {
    font-size: 1.3rem;
}

.kyousei_photo_box {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.kyousei_right_box {
    width: 100%;
    max-width: 397px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 2.5rem;
}

.kyousei_img_box {
    width: 100%;
    max-width: 390px;
}

.kyousei_img {
    margin-bottom: 1.5rem;
}

.MOE_link {
    width: 100%;
    max-width: 394px;
    font-size: 1.3rem;
    line-height: 1.2;
    word-break: break-all;
    overflow-wrap: break-word;
}

.kyousei_btn_box {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: -3rem;
}

.kyousei_btn .btn_blue {
    width: auto;
    max-width: 330px;
    padding: 1rem 2rem;
}

/* -----------------------------
Responsive
----------------------------- */

@media (max-width: 1300px) {
/* aboutpage_value */
    .concept_value_box {
        transform: translateX(70px);
        padding: 10rem 15rem;
    }
}

@media (max-width: 1150px) {
/* ヘッダー切り替え */
    .header {
        padding: 0 1.5rem;
    }

    .header_logo {
        width: 35%;
        min-width: 248px;
        z-index: 1001;
    }

    .header_nav {
        flex-direction: column;
        position: absolute;
        max-width: 375px;
        width: 100%;
        top: 0;
        right: 0;
        padding: 60.5px 0 70px;
        background: var(--bg-main);
        opacity: 0;
        transition: opacity 0.5s ease-in-out;
    }

    .header_nav.is-open {
        opacity: 1;
    }

    .mainnav {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        padding: 0 3rem;
        width: 100%;
    }

    .mainnav_item {
        width: 100%;
    }

    .mainnav_item_inner {
        display: flex;
        align-items: center;
        justify-content: flex-start;
        gap: 1rem;
        margin-bottom: 2rem;
    }

    .sp_mainnav_icon {
        display: block;
        width: 10px;
        height: 10px;
    }

    .sp_mainnav_item_box {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 2rem;
    }

    .sp_mainnav_line {
        display: block;
        max-width: 312px;
        width: 100%;
        height: 2px;
        background: var(--color-main);
    }

    a.header_donation_btn {
        width: 325px;
        height: 60px;
    }

    .header_hamburger_wrapper {
        display: flex;
        justify-content: center;
        align-items: center;
        position: relative;
        width: 30px;
        height: 24px;
        z-index: 1001;
    }
    
    .header_hamburger {
        width: 30px;
        height: 24px;
        display: flex;
        flex-direction: column;
        justify-content: center;

        cursor: pointer;
        background: transparent;
        border: none;
        padding: 0;
        position: relative;
        z-index: 1002;
    }

    .header_hamburger_line {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 0.6rem;
    }
    
    .header_hamburger_line span {
        display: block;
        width: 100%;
        height: 2px;
        background: var(--color-main);
        transition: transform 0.3s ease;
    }

    .header_hamburger.is-open .header_hamburger_line span:nth-child(1) {
        transform: rotate(-45deg) translate(-1.5px, 4.5px);
        width: 24px;
    }

    .header_hamburger.is-open .header_hamburger_line span:nth-child(2) {
        transform: rotate(45deg) translate(-1.5px, -4px);
        width: 24px;
    }

    .header_hamburger_menu {
        width: 100%;
        height: 12px;
        font-size: var(--fz-sp-history);
        line-height: var(--lh-sp-history);
        font-weight: var(--fw-bold);
        color: var(--color-main);
    }

    .kv {
        aspect-ratio: 4 / 3;
    }

    /* sp_about_page_mission/value */
    .concept_mission_box {
        padding: 7rem 8rem 10rem;
        margin-left: 9rem;
        width: auto;
        max-width: calc(100% - 9rem);
    }

    .mission_photo_box {
        max-width: 22vw;
    }

    .concept_value_box {
        transform: translateX(50px);
        padding: 10rem;
    }

    .value_photo_box {
        transform: translateX(-4rem);
    }

    /* sp_donation */
    .donation_section_box {
        padding: 0;
    }

    .donation {
        border-radius: 10rem;
        padding: 7rem 2rem;
        margin-bottom: 15rem;
    }

    .donation_box {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 3rem;
    }

    .card_3 {
        display: flex;
        flex-direction: unset;
        align-items: center;
        justify-content: center;

        width: 100%;
        max-width: 320px;
        max-height: 160px;
    }

    .card_donation_text {
        gap: 1rem;
    }
    
    .card_donation_title {
        display: flex;
        font-size: var(--fz-h2);
        line-height: var(--lh-h2);
        flex-wrap: nowrap;
    }
    
    .participate_comment_sp {
        display: block;
        align-self: center;
        margin-top: -2rem;
        
        max-width: 320px;
        font-size: 1.3rem;
        line-height: 1.6;
        font-weight: var(--fw-bold);
        color: #80BA39;
    }

    .participate_comment_pc {
        display: none;
    }

    /* sp_donation_use */
    .donation_use {
        padding: 0 2rem 10rem 2rem;
        margin-bottom: 15rem;
    }

    .donation_use_box {
        width: 100%;
        max-width: 325px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 4rem;
    }

    .card_donation_use {
        gap: 2rem;
    }

    /* activitiespage */
    /* umigomizero */
    .umigomi_youkai_photo_box img {
        width: 100%;
        max-width: 150px;
    }

    .bc_btn_info {
        display: none;
    }

    .bc_btn_box {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 1rem;
    }

    .sp_bc_btn_info {
        text-align: center;
        display: block;
        font-size: 1.2rem;
        line-height: 2;
        font-weight: var(--fw-bold);
        color: var(--color-main);
    }

    .kyousou_box {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        gap: 5rem;
        margin-bottom: 3rem;
    }

    /* kyousei */
    .kyousei_inner_box {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        gap: 2rem;
    }

    .kyousei_btn_box {
        margin-top: -1rem;
    }
}

@media (max-width: 850px) {
    .sp_br {
        display: block;
    }

    .concept_br {
        display: none;
    }

    /* aboutpage_concept */
    .aboutpage_about {
        margin-top: 5rem;
    }

    .mission_deco_box {
        position: static;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .concept_mission_box {
        transform: none;
        margin: 0 auto;
        padding: 7rem 9rem 10rem;
        border-radius: 15rem;
    }

    .mission_photo_box {
        position: static;
        transform: translate(22rem, -18rem);
        width: 100%;
        max-width: 45vw;
        margin-bottom: -18rem;
    }

    .value_deco_box {
        margin-bottom: 10rem;
    }

    .concept_value_box {
        transform: none;
        margin: 0 3rem 10rem;
        border-radius: 15rem;
    }

    .value_photo_box {
        transform: translate(-7rem, 33rem);
        max-width: 33vw;
    }

    .ecosystem_box {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 7rem;
    }

    .vision_illust_left {
        position: absolute;
        bottom: -3rem;
        left: -2rem;
    }

    .vision_illust_right {
        position: absolute;
        right: -20rem;
        top: -17rem;
        max-width: 20vw;
    }

    .history_box {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2rem;
    }

    .loop_track img {
        flex-shrink: 0;
        width: 200px;
        height: auto;
        object-fit: cover;
    }

    .achievements {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: 2rem;
    }

    .message .container {
        padding: 10rem 7rem;
    }

    .message_box {
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
    }

    .message_photo {
        max-width: 50vw;
    }

    /* sp_fuudo_link */
    .about_fuudo .container {
        padding: 7rem 4rem;
        gap: 5rem;
    }

    .about_fuudo_link_box {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5rem;
    }

    /* activitiespage */
    .activitiespage_activities {
        margin-top: 5rem;
    }

    .activitiespage_title {
        margin-bottom: -5rem;
    }

    /* data */
    .data {
        padding: 7rem 6rem 5rem;
    }

    .data_comment {
        font-size: 1.2rem;
        line-height: 1.5;
    }

    /* umigomi */
    .umigomi_zero_deco_right {
        top: -22rem;
        right: -30rem;
    }

    .umigomi_zero_deco_left {
        top: -19rem;
        left: -9rem;
    }

    .gomizero_photo_box {
        grid-template-columns: repeat(2, 1fr);
        align-items: center;
        justify-content: center;
        gap: 2rem;
        max-width: 360px;
        margin-inline: auto;
    }

    .gomizero_photo_box img {
        width: 100%;
        max-width: 170px;
    }
}

@media (max-width: 768px) {
    :root {
        --fz-h2: 2.0rem;
        --lh-h2: 2;

        --fz-h3: 1.6rem;
        --lh-h3: 2;

        --fz-section: 1.5rem;
        --lh-section: 1.867;

        --fz-explanation: 1.4rem;
        --lh-explanation: 1.786;

        --fz-follow: 1rem;
        --lh-follow: 1.2;

        --fz-sp-history: 1rem;
        --lh-sp-history: 3;

        --section-space: 16rem;
    }

    .html {
        overflow: hidden;
    }

    /* sp_follow_btn */
    .sp_br_follow {
        display: block;
    }

    .follow_top_btn {
        width: 50px;
        height: 50px;
        padding: 15px 17px 20px;
        bottom: 8%;
    }

    .follow_donation_btn {
        width: 65px;
        height: 60px;
        padding: 20px 10px;
    }

    /* sp_kv */
    .kv {
        aspect-ratio: 4 / 5;
    }

    .kv_photo {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        top: 3%;
        gap: 1rem;
    }
    
    .photo_block.center {
        width: 110%;
        max-width: 450px;
        transform: translate(1rem, -7.5rem);
    }
    
    .photo_block.right {
        width: 110%;
        max-width: 270px;
        transform: translate(19.5rem, -10rem);
    }
    
    .photo_block.left {
        width: 110%;
        max-width: 250px;
        transform: translate(-16rem, 1rem);
    }

    .main_illust {
        width: 100%;
        max-width: 450px;
        height: 250px;
        top: 38%;
        left: 55%;
    }
    
    .deco_illust.left_top {
        top: -9%;
        left: -9%;
        transform: rotate(-110deg);
    }
    
    .deco_illust.left_top img {
        width: 70%;
    }
    
    .deco_illust.left_middle {
        top: 40%;
        left: 4%;
    }
    
    .deco_illust.left_middle img {
        width: 70%;
    }
    
    .deco_illust.left_bottom {
        top: 62%;
        left: -1%;
        transform: rotate(20deg);
    }
    
    .deco_illust.left_bottom img {
        width: 60%;
    }
    
    .deco_illust.right_top {
        top: 45%;
        right: -9%;
        transform: rotate(100deg);
    }
    
    .deco_illust.right_top img {
        width: 30%;
    }

    .deco_illust.right_middle {
        top: 4%;
        right: -3%;
        transform: rotate(90deg);
    }

    .deco_illust.right_middle img {
        width: 60%;
    }
    
    .deco_illust.right_bottom {
        top: 61%;
        right: -1%;
    }

    .deco_illust.right_bottom img {
        width: 80%;
    }

    .catch {
        display: none;
    }

    .catch img {
        width: 70%;
    }

    .sp_catch {
        display: flex;
        flex-direction: column;
        z-index: 800;
    }

    .sp_catch_top {
        transform: translate(-14rem, -7rem) rotate(-8deg);
    }

    .sp_catch_top img {
        width: 90%;
    }

    .sp_catch_middle {
        transform: translate(-9rem, -35rem) rotate(-10deg);
    }

    .sp_catch_middle img {
        width: 100%;
    }

    .sp_catch_bottom {
        width: 120%;
        transform: translate(-2rem, -28rem);
    }

    .sp_catch_bottom img {
        width: 100%;
    }

    /* sp_about */
    .about .container {
        border-radius: 12rem;
        padding: 8rem 4rem;
        gap: 3rem;
    }

    /* sp_activities */
    .activities {
        height: auto; 
    }

    .activities .container {
        flex-direction: column;
        height: auto;
        gap: 5rem;
    }

    .activities_text_box {
        width: 100%;
        position: static;
        height: auto;
        text-align: center;
    }

    .activities_card_box {
        width: 100%;
        height: auto;
        top: 0;
        gap: 3rem;
    }

    .card_1 {
        width: 100%;
        max-width: 325px;
        height: auto;
        min-height: 410px;
        position: static;
        transform: none;
        animation: none;
        margin-bottom: 2rem;
        top: 0;
        padding: 2rem 2rem 4rem;
        border-radius: 3rem;
    }

    .card_1:last-child {
        margin-bottom: 0;
    }

    .card_activities_photo {
        height: 170px;
    }

    /* sp_schedule */
    .google_calendar {
        width: 100%;
        overflow: hidden;
        height: auto;
    }

    .google_calendar iframe {
        width: 100%;
        min-width: 100%;
        height: 400px;
    }

    /* sp_youkai_slider */
    .label_nami_youkai {
        margin-bottom: 0;
    }

    .label_nami_skyblue {
        top: 11px;
    }

    .label_nami_lightblue {
        top: 0;
    }

    .slider_youkai_set {
        z-index: 1000;
        clip-path: inset(0% 42% 20% 42% round 12rem);
        background-color: var(--bg-skyblue);
    }

    .slider_gomi_set {
        margin-top: 1rem;
    }

    .slider_container {
        margin-top: 40px;
    }

    .slider_list {
        gap: 2rem;
    }

    .slider_list li {
        width: 80px;
        flex-shrink: 0;
    }

    /* sp_news */
    .note_card {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 1rem;
        background-color: var(--bg-white);
        border-radius: 1rem;
    }

    .note_img_box {
        width: 100%;
        max-width: 180px;
        min-height: 110px;
    }

    .note_content {
        max-width: 200px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding: 0 0.8rem;
        overflow: hidden;
    }

    .news_card_box {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 4rem;
    }

    .card_2 {
        width: 100%;
        max-width: 325px;
    }

    .insta_bubble {
        width: 30%;
        top: 50px;
        right: -35px;
    }

    /* sp_nami_fixed */
    .nami_fixed_up.is-stopped {
        top: -150px;
    }

    /* privacy */
    .privacy_text {
        font-size: var(--fz-explanation);
    }

    /* sp_footer */
    .footer_inner_box {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 4rem;
    }

    .footer_logo {
        width: 35%;
        min-width: 248px;
    }

    .footer_text {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 4rem;
    }

    .fuudo_text {
        display: flex;
        text-align: center;
        justify-content: center;
        font-size: 1.3rem;
    }

    .fuudo_info {
        display: flex;
        flex-direction: column;
        text-align: center;
        justify-content: center;
    }

    .footer_right {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2rem;
    }

    .footer_menu_items {
        display: none;
    }

    .footer_bottom_text {
        font-size: var(--fz-follow);
    }

    .copyright {
        font-size: var(--fz-follow);
    }
}

@media (max-width: 475px) {
    /* sp_schedule */
    .schedule .container {
        max-width: 370px;
        gap: 4rem;
    }

    .sp_br {
        display: block;
    }

    .container {
        max-width: 325px;
        gap: 7rem;
    }

    .privacy {
        padding: 7rem 2rem;
        border-radius: 5rem;
        margin: 5rem 3rem 15rem;
    }

    .ecosystem_link {
        gap: 1.5rem;
    }

    .message_person{
        font-size: var(--fz-explanation);
    }
}

@media (max-width: 375px) {
    .sp_br_small {
        display: block;
    }

    .about .container {
        border-radius: 8rem;
        padding: 10rem 3rem;
        gap: 0;
    }

    /* sp_kv 375px */
    .kv {
        aspect-ratio: 375 / 600;
    }

    .kv_photo {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        top: 0;
        gap: 3rem;
    }
    
    .photo_block.center {
        width: 110%;
        max-width: 256px;
        transform: translate(1rem, -3.5rem);
    }
    
    .photo_block.right {
        width: 110%;
        max-width: 145px;
        transform: translate(9.5rem, -5rem);
    }
    
    .photo_block.left {
        width: 110%;
        max-width: 130px;
        transform: translate(-7rem, 1rem);
    }

    .main_illust {
        width: 100%;
        max-width: 270px;
        height: 250px;
        top: 50%;
    }

    .deco_illust.left_bottom,
    .deco_illust.right_middle {
        display: none;
    }

    .deco_illust.left_top {
        top: -4%;
        left: 4%;
        transform: rotate(-12deg);
    }

    .deco_illust.left_top img {
        width: 40%;
    }

    .deco_illust.left_middle {
        top: 68%;
        left: -5%;
        transform: rotate(40deg);
    }

    .deco_illust.left_middle img {
        width: 50%;
    }

    .deco_illust.right_top {
        top: 31%;
        right: -39%;
        transform: rotate(70deg);
    }

    .deco_illust.right_top img {
        width: 30%;
    }

    .deco_illust.right_bottom {
        top: 61%;
        right: -35%;
        transform: rotate(10deg);
    }

    .deco_illust.right_bottom img {
        width: 50%;
    }

    .catch {
        display: none;
    }

    .catch img {
        width: 70%;
    }

    .sp_catch {
        display: flex;
        flex-direction: column;
        z-index: 800;
    }

    .sp_catch_top {
        transform: translate(0, -7.5rem) rotate(-5deg);
    }

    .sp_catch_top img {
        width: 65%;
    }

    .sp_catch_middle {
        transform: translate(2rem, -22rem) rotate(-9deg);
    }

    .sp_catch_middle img {
        width: 71%;
    }

    .sp_catch_bottom {
        transform: translate(3.5rem, -17rem);
    }

    .sp_catch_bottom img {
        width: 75%;
    }

    /* sp_nami 375px */
    .nami_fixed_up {
        display: none;
    }

    .nami_section_up,
    .nami_section_down {
        display: none;
    }

    /* sp_nammi_fixed */
    .sp_nami_fixed_up {
        display: block;
        position: fixed;
        /* bottom: -1px; */
        top: auto;
        bottom: -60px;

        left: 0;
        width: 100%;
        height: auto;
        z-index: 1400;

        font-size: 0;
        line-height: 0;
        padding-bottom: 0 !important;
        /* margin-bottom: env(safe-area-inset-bottom); */
        overflow: hidden;
    }

    .sp_nami_fixed_up img {
        display: block !important;
        width: 100% !important;
        height: auto !important;
        margin: 0;
        /* vertical-align: bottom !important; */
        vertical-align: top !important;

    }

    .sp_nami_fixed_up.is-stopped {
        position: absolute !important;
        bottom: calc(100% - 60px) !important;
        top: auto !important;
        left: 0 !important;
        margin: 0 !important;
        transform: none !important;
        width: 100% !important;
    }

    /* sp_nami_section */
    .sp_nami_section_up {
        display: block;        
        width: 100%;
        height: 79px;
        margin-bottom: -1px;
    }

    .sp_nami_section_down {
        display: block;
        width: 100%;
        height: 79px;

        overflow: hidden;
        margin-top: -5px;
        margin-bottom: var(--section-space);
    }

    .sp_nami_section_up img,
    .sp_nami_section_down img {
        display: block;
        width: 100%;
        height: auto;
    }

    /* sp_slider 375px */
    .slider_youkai_set {
        z-index: 1000;
        clip-path: inset(0% 38% 20% 38% round 12rem);
        background-color: var(--bg-skyblue);
    }

    .slider_gomi_set {
        margin-top: 1rem;
    }

    .slider_container {
        margin-top: 1rem;
    }

    /* sp_donation 375px */
    .donation .container {
        padding: 0;
        width: 100%;
        max-width: 255px;
    }

    .donation {
        margin-bottom: 10rem;
    }

    .donation_use .container {
        padding: 0;
    }

    .donation_use_box {
        gap: 2rem;
    }

    /* sp_aboutpage_concept */
    .concept_title {
        width: 100%;
        max-width: 340px;
        margin-bottom: -6rem;
    }

    .concept_text {
        font-size: var(--fz-section);
        line-height: var(--lh-section);
    }

    .mission_deco_box {
        position: static;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .concept_mission_box {
        padding: 8rem 4rem;
        margin: 0 1rem;
        border-radius: 10rem;
        width: 100%;
        max-width: 325px;
    }

    .mission_photo_box {
        transform: translate(8rem, -12rem);
        max-width: 55vw;
    }

    .value_deco_box {
        margin-bottom: 10rem;
    }

    .concept_value_box {
        padding: 8rem 4rem;
        margin: 0 1rem;
        border-radius: 10rem;
        width: 100%;
        max-width: 325px;
    }

    .value_photo_box {
        transform: translate(-4rem, 39rem);
        max-width: 50vw;
    }

    .vision_box {
        border-radius: 10rem;
        margin: 10rem 2rem;
    }

    .vision_illust_right {
        right: -9rem;
        top: -110rem;
        max-width: 35vw;
    }

    /* sp_history */

    .sp_history_year {
        display: block;
    }

    .history_contents_box p {
        font-size: var(--fz-sp-history);
        line-height: var(--lh-sp-history);
    }

    .history_box {
        margin-left: 0;
    }

    .history_topic_box {
        gap: 1rem;
    }

    .month {
        flex-shrink: 0;
    }

    .loop_track {
        gap: 2rem;
    }

    .loop_track img {
        width: 170px;
        height: 125px;
    }

    .achievements_box {
        width: 100%;
    }

    .achievements_year {
        flex-shrink: 0;
    }

    .achievements_box p {
    font-size: var(--fz-sp-history);
    line-height: var(--lh-sp-history);
    }

    /* sp_message */
    .message .container {
        padding: 7rem 3rem;
    }

    .message_text {
        font-size: var(--fz-section);
        line-height: var(--lh-section);
    }

    /* sp_umigomizero */
    .activitiespage_title {
        margin-bottom: -5rem;
    }

    .umigomi_zero_sp_separater {
        display: block;
    }

    .activitiespage_activities {
        margin-top: 5rem;
        margin-bottom: 10rem;
    }

    .umigomi_zero {
        padding: 4rem;
        gap: 8rem;
    }

    .activitiespage_topic_number {
        font-size: 2.5rem;
    }

    .umigomi_zero .activitiespage_text {
        margin-top: 3rem;
    }

    .umigomi_zero_deco_left {
        top: -4rem;
        left: -6rem;
        width: 40%;
    }

    .umigomi_zero_deco_right {
        top: -6rem;
        right: -17rem;
        width: 90%;
    }

    .data {
        padding: 5rem 3rem;
    }

    .data_title_deco {
        top: -4rem;
        left: -5rem;
    }

    .data_cards {
        display: none;
    }

    .sp_data_cards {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        gap: 3rem;
    }

    .gomizero_topic,
    .gomizero_title {
        line-height: 1.5;
    }

    .gomizero_title {
        font-size: 1.8rem;
    }

    .gomizero_title_icon {
        font-size: var(--fz-explanation);
    }

    .umigomi_youkai_title_right {
        top: -2rem;
        right: -12.5rem;
        width: 130%;
    }

    .umigomi_youkai_title_left {
        top: -2rem;
        left: -13rem;
        width: 150%;
    }

    .kyousou_inner_box {
        padding: 3rem 2rem;
    }

    .umigomi_youkai_photo_box {
        gap: 1rem;
    }

    .umigomi_youkai_photo_box img {
        width: 100%;
        max-width: 105px;
    }

    .kaishu_photo_box {
        grid-template-columns: repeat(2, 1fr);
    }

    /* sp_amamo */
    .amamo {
        padding: 5rem 3rem;
        margin-bottom: 10rem;
    }

    /* sp_kyousei */
    .kyousei {
        padding: 5rem 3rem;
        margin-bottom: 10rem;
    }

    .sp_br_delete {
        display: none;
    }

    .kyousei_photo_box {
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: 2rem;
        margin-bottom: 2rem;
    }

    .MOE_link {
        font-size: var(--fz-follow);
    }

    .kyousei_btn .btn_blue {
        line-height: 1.5;
    }

    .kyousei_btn_info {
        font-size: 1.2rem;
    }

    /* sp_footer 375px*/
    .footer_bottom_text {
        line-height: 1.5;
    }

}