:root {
    --color-primary: #F25C05;
    --color-secondary: #FFB300;
    --color-accent: #FF8800;
    --color-text: #000;
    --color-white: #fff;
    --color-text-muted: #E78700;
    --color-bg-light: rgba(255, 179, 0, 0.06);
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    border: 0 solid;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    tab-size: 4;
    line-height: 1.5;
    font-family: "Noto Sans JP", "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", "Gothic Medium BBB", "ヒラギノ角ゴ Pro W3", "メイリオ", sans-serif;
    -webkit-tap-highlight-color: transparent;
    scroll-padding-top: 6rem;
}

body {
    line-height: inherit;
    background-color: var(--color-secondary);
    color: var(--color-text);
    overflow-x: hidden;
}

img,
svg,
video,
canvas {
    display: block;
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

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

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
    background-color: transparent;
    border-radius: 0;
}

ul,
ol {
    list-style: none;
}


.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.875rem;
    background: var(--color-primary);
    border: 2px solid var(--color-primary);
    color: var(--color-white);
    padding: 1rem 1.875rem;
    border-radius: 40px;
    font-family: "Poppins", sans-serif;
    font-size: clamp(17px, 0.908rem + 0.66vw, 23px);
    letter-spacing: 0.053rem;
    cursor: pointer;
    position: relative;
    transition: all 0.3s;
}

.btn-primary span {
    min-width: 160px;
}

.btn-primary i {
    background: var(--color-white);
    padding: .3rem;
    border-radius: 30px;
    display: flex;
    width: 20px;
    height: 20px;
    transition: all 0.2s;
    position: absolute;
    top: 50%;
    margin-top: -10px;
    right: 1.5rem;
}

.btn-primary i:before {
    content: "";
    display: block;
    width: 12px;
    height: 12px;
    background: url(../images/common/arrow-o.svg) no-repeat center center;
}

.btn-primary:hover {
    background: var(--color-white);
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-primary:hover i {
    background: var(--color-primary);
}

.btn-primary:hover i:before {
    content: "";
    display: block;
    width: 12px;
    height: 12px;
    background: url(../images/common/arrow-w.svg) no-repeat center center;
}


/* Layout Utilities */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0;
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

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

.flex-between {
    align-items: center;
    justify-content: space-between;
}

.grid {
    display: grid;
}

.gap-20 {
    gap: 1.25rem;
}

.gap-30 {
    gap: 1.875rem;
}

.gap-50 {
    gap: 3.125rem;
}


.white-bg {
    background: var(--color-white);
    margin-top: -13rem;
    padding-top: 17rem;
    padding-bottom: 120px;
}

/* Header Styles */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 50;
    transition: all 0.3s;
}

#header.scrolled {
    background-color: rgba(242, 92, 5, 0.95);
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    width: 180px;
    transition: opacity 0.3s;
}

.logo:hover {
    opacity: 0.7;
}

.desktop-menu {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.nav-desktop {
    display: none;
    gap: 2rem;
}

.nav-link {
    color: var(--color-white);
    font-family: "Poppins", sans-serif;
    font-size: clamp(14px, 2rem, 20px);
    letter-spacing: 0.1rem;
    transition: opacity 0.3s;
}

.nav-link:hover {
    opacity: 0.7;
}

.social-links {
    display: none;
    gap: 1.25rem;
}

.social-link {
    transition: opacity 0.3s;
}

.social-link:hover {
    opacity: 0.7;
}

/* Hamburger Menu */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 40px;
    height: 20px;
    cursor: pointer;
    z-index: 51;
}

.hamburger span {
    width: 100%;
    height: 1px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: all 0.3s;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100dvh;
    background-color: var(--color-primary);
    z-index: 40;
    transform: translateX(100%);
    transition: transform 0.4s;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem;
    padding-bottom: 5rem;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 3vw;
    margin-bottom: 7vw;
}

.mobile-nav-link {
    color: var(--color-white);
    font-family: "Poppins", sans-serif;
    font-size: clamp(12px, 7vw, 27px);
    letter-spacing: 0.15em;
    transition: opacity 0.3s;
}

.mobile-nav-link:hover {
    opacity: 0.7;
}

.mobile-social {
    display: flex;
    gap: 2rem;
}

/* Main Content */
main {
    padding-top: 6rem;
    overflow: hidden;
}

/* Scroll Slider Section */
.scroll-slider {
    padding: 3rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.slider-row {
    display: flex;
    gap: 1rem;
    animation: scroll-rtl 20s linear infinite;
    width: max-content;
    margin-bottom: 2rem;
}

.slider-row.reverse {
    animation: scroll-ltr 20s linear infinite;
}

.slider-item {
    flex-shrink: 0;
    width: 280px;
}

.slider-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 0.5rem;
}

@keyframes scroll-rtl {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(calc(-100% / 3));
    }
}

@keyframes scroll-ltr {
    0% {
        transform: translateX(calc(-100% / 3));
    }

    100% {
        transform: translateX(0);
    }
}

.slider-cta {
    text-align: center;
    padding: 0 1.5rem;
    position: relative;
}

.slider-title {
    font-family: "Poppins", sans-serif;
    font-size: clamp(35px, -0.014rem + 9.39vw, 120px);
    color: rgba(255, 255, 255, 0.2);
    letter-spacing: 0.109rem;
}

.slider-cta .btn-primary span {
    min-width: 200px;
}

/* Section Styles */


.section {
    padding: 3rem 1.5rem 0;
}

#news.section {
    padding-top: 0;
}

.section-title {
    font-family: "Poppins", sans-serif;
    font-size: clamp(32px, 10vw, 80px);
    line-height: 1.3;
    text-align: center;
    margin-bottom: 3rem;
    font-weight: normal;
    letter-spacing: .2rem;
}

.section-title.white {
    color: var(--color-white);
}

.section-title.orange {
    color: var(--color-accent);
}

/* Card Styles */
.card {
    background-color: var(--color-white);
    border-radius: 20px;
    padding: 2.5rem;
    flex-direction: column;
}

.card-title {
    font-family: "Poppins", sans-serif;
    font-weight: normal;
    font-size: clamp(20px, 9vw, 50px);
    line-height: 1;
    color: #FFB300;
    letter-spacing: 0.125rem;
    flex-shrink: 0;
}

/* News Section */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    flex: 1;
}

.news-item {
    display: block;
}


.news-item .news-link {
    display: flex;
    align-items: flex-start;
    transition: opacity .1s linear;
    gap: .25rem;
    flex-direction: column;
}

.news-item a:hover {
    opacity: .4;
}

.news-date {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(231, 135, 0, 0.5);
    letter-spacing: 0.079rem;
    flex-shrink: 0;
}

.news-text {
    font-size: clamp(12px, 3.5vw, 14px);
    line-height: 1.8;
    color: var(--color-accent);
    letter-spacing: 0.05rem;
    flex: 1;
}

/* SNS Section */
.sns-buttons {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    width: 100%;
}

.sns-btn {
    background-color: var(--color-primary);
    width: 100%;
    border-radius: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    color: var(--color-white);
    font-family: "Poppins", sans-serif;
    font-weight: 600;
    font-size: 16px;
    letter-spacing: 0.03rem;
    position: relative;
    transition: opacity 0.3s;
    cursor: pointer;
    padding: 1.25rem .5rem;
}

.sns-btn:hover {
    opacity: .5;
}

.sns-btn span {
    font-weight: 500;
    letter-spacing: .05rem;
    font-size: clamp(12px, 4vw, 16px);
}

/* Member Section */
.member-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.member-card {
    background-color: var(--color-white);
    border-radius: 20px;
    padding: 1.875rem;
    display: flex;
    gap: 1.875rem;
    transition: all 0.3s;
}

.member-image {
    width: 155px;
    height: 233px;
    object-fit: cover;
    flex-shrink: 0;
}

.member-info {
    flex: 1;
    color: var(--color-text-muted);
}

.member-name {
    font-size: 30px;
    line-height: 1.1;
    color: var(--color-accent);
    letter-spacing: 0.169rem;
    margin-bottom: 0.625rem;
    font-weight: normal;
    color: var(--color-accent);
}

.member-name-en {
    font-family: "Poppins", sans-serif;
    font-size: 16px;
    color: rgba(255, 136, 0, 0.5);
    letter-spacing: 0.05rem;
    margin-bottom: .5rem;
}

.member-position {
    font-size: 14px;
    line-height: 1.75;
    margin-bottom: .5rem;
}

.member-bio {
    font-size: 12px;
    line-height: 1.75;
    color: var(--color-text-muted);
    letter-spacing: 0.045rem;
    white-space: pre-wrap;
    display: flex;
    width: 100%;
}

.member-bio > * {
    margin-top: .2rem;
}

.member-bio dt {
    width: 50px;
    position: relative;
}

.member-bio dt::after {
    content: ":";
    display: block;
    position: absolute;
    top: 0;
    right: 10px;
}

.member-social {
    display: flex;
    gap: 0.75rem;
    margin-top: .9rem;
}

.member-social-icon {
    width: 17px;
    height: 17px;
    display: flex;
    align-items: center;
    transition: opacity 0.3s;
    cursor: pointer;
    margin-top: .5rem;
}

.member-social-icon :hover {
    opacity: 0.7;
}

/* Concept Section */
.concept-wrapper {
    position: relative;
    max-width: 1280px;
    margin: 8rem auto 0;
}

.concept-content {
    background-color: var(--color-accent);
    border-radius: 300px;
    text-align: center;
    padding: 5rem 2rem;
    position: relative;
}

.concept-content .section-title {
    margin-bottom: 1rem;
}

.concept-text {
    font-size: clamp(13px, 2vw, 18px);
    line-height: 1.875;
    color: var(--color-white);
    letter-spacing: 0.06rem;
    max-width: 800px;
    margin: 0 auto;
}

.concept-text span {
    display: inline-block;
}

.concept-images {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 10;
}

.concept-images img {
    position: absolute;
    object-fit: cover;
}

/* Sponsor Section */
.sponsor-card {
    background-color: var(--color-bg-light);
    padding: 1.5rem;
    margin-bottom: 5px;
    color: var(--color-accent);
}

.sponsor-card.top-card {
    border-radius: 15px 15px 0 0;
}

.sponsor-card.bottom-card {
    border-radius: 0 0 15px 15px;
}

.sponsor-title {
    font-weight: 600;
    font-size: clamp(15px, 3.5vw, 20px);
    line-height: 1;
    letter-spacing: 0.1rem;
}

.sponsor-group:last-child {
    margin-bottom: 0;
}


.sponsor-subtitle {
    font-weight: 400;
    font-size: clamp(15px, 2.5vw, 18px);
    line-height: 1;
    letter-spacing: 0.1rem;
}

.sponsor-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    color: var(--color-text-muted);
    margin: .5rem 0 1rem;
}

.sponsor-list > div + div {
    margin-top: 1rem;
}

.sponsor-list > div strong {
    font-weight: normal;
    margin-bottom: 0.5rem;
    display: inline-block;
    font-size: clamp(12px, 1.5vw, 14px);
    line-height: 1.7;
    letter-spacing: 0.05rem;
}

.sponsor-item {
    font-size: clamp(12px, 1.5vw, 14px);
    line-height: 1.8;
    letter-spacing: 0.05rem;
}

/* Contact Section */
.contact-form {
    background-color: var(--color-bg-light);
    border-radius: 20px;
    padding: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.form-label {
    font-weight: 600;
    font-size: clamp(14px, 3vw, 16px);
    line-height: 1;
    color: var(--color-accent);
    letter-spacing: 0.09rem;
    flex-shrink: 0;
}

.form-group .wpcf7-form-control-wrap {
    display: block;
    width: 100%;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: min(3vw, 15px);
    border-radius: 5px;
    border: 1px solid rgba(231, 135, 0, 0.3);
    background-color: var(--color-white);
    transition: border-color 0.3s;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--color-primary);
    outline: none;
}

.form-textarea {
    height: auto;
    min-height: 186px;
    padding: 1.25rem 1.5rem;
    resize: vertical;
}

.form-input::placeholder {
    color: rgba(231, 135, 0, 0.5);
    font-size: 14px;
    letter-spacing: 0.079rem;
}

.form-submit {
    display: flex;
    justify-content: center;
    padding-top: 1rem;
}


/* Footer */
footer {
    padding: 3rem 1.5rem;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.footer-logo {
    width: 152px;
    height: 65px;
}

.footer-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 1.25rem;
}

.footer-text {
    font-family: "Poppins", sans-serif;
    font-weight: normal;
    font-size: 12px;
    line-height: 1;
    color: var(--color-white);
    letter-spacing: 0.079rem;
    text-align: right;
}

/* Animation */
.fade-in-section {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */

@media (max-width: 1023px) {
    .card {
        gap: 2rem;
        align-items: center;
    }

}

@media (max-width: 767px) {

    .member-card {
        flex-direction: column;
        align-items: center;
    }

    .member-info {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .member-name {
        font-size: clamp(18px, 6vw, 30px);
    }

    .member-name-en {
        font-size: clamp(14px, 3.5vw, 16px);
    }

    .member-bio {
        justify-content: center;
    }

    .concept-content {
        padding: 5rem 100px;
        width: calc(100vw + 100px);
        margin-left: -75px;
    }

    .concept-images img.concept-img01 {
        width: 133px;
        top: -29px;
        left: -60px;
    }

    .concept-images img.concept-img02 {
        width: 110px;
        top: 170px;
        left: -80px;
    }

    .concept-images img.concept-img03 {
        width: 140px;
        bottom: -52px;
        left: -70px;
    }

    .concept-images img.concept-img04 {
        width: 133px;
        top: -23px;
        right: -60px;
    }

    .concept-images img.concept-img05 {
        width: 140px;
        top: 145px;
        right: -90px;
    }

    .concept-images img.concept-img06 {
        width: 190px;
        bottom: -80px;
        right: -96px;
    }

    .sponsor-card {
        padding: 2rem 1.5rem
    }

    .sponsor-title {
        margin-bottom: 1.5rem;
    }

    .sponsor-list {
        margin: .75rem 0 0;
    }

    .sponsor-group {
        margin-top: 1rem;
    }

    .form-input,
    .form-textarea {
        border-radius: 10px;
    }
}

@media (max-width: 428px) {
    html {
        scroll-padding-top: 4rem;
    }

    .header-container {
        padding: 1rem;
    }

    .logo {
        width: 150px;
    }

    main {
        padding-top: 4rem;
    }

    .card {
        padding: 1.5rem;
        gap: 1rem;
    }
}

@media (min-width: 768px) {
    .logo {
        width: 20rem;
        max-width: 230px;
    }

    .header-container {
        padding: 1.5rem 2.5rem;
    }

    .section {
        padding: 2rem 1.5rem 0;
    }

    .member-info {
        flex-direction: column;
        align-items: center;
    }

    .member-name {
        font-size: clamp(16px, 6.5vw, 30px);
    }

    .member-name-en {
        font-size: clamp(13px, 3vw, 16px);
    }


    .concept-images img.concept-img01 {
        width: 203px;
        top: -53px;
        left: 106px;
    }

    .concept-images img.concept-img02 {
        width: 180px;
        top: 151px;
        left: -37px;
    }

    .concept-images img.concept-img03 {
        width: 240px;
        bottom: -102px;
        left: 50px;
    }

    .concept-images img.concept-img04 {
        width: 224px;
        top: -53px;
        right: 90px;
    }

    .concept-images img.concept-img05 {
        width: 240px;
        top: 95px;
        right: -80px;
    }

    .concept-images img.concept-img06 {
        width: 303px;
        bottom: -152px;
        right: 66px;
    }
}

@media (min-width: 1023px) and (max-width: 1260px) {
    .desktop-menu {
        align-items: self-end;
        gap: 1rem;
        flex-direction: column-reverse;
    }
}

@media (min-width: 1024px) {
    html {
        scroll-padding-top: 7rem;
    }

    .nav-desktop {
        display: flex;
    }

    .social-links {
        display: flex;
    }

    .hamburger {
        display: none;
    }

    .mobile-menu {
        display: none;
    }

    .header-container {
        max-width: inherit;
        padding: 2.1875rem 50px;
        gap: 3rem;
    }

    main {
        padding-top: 7rem;
    }

    .slider-item {
        width: 370px;
    }

    .slider-item img {
        height: 207px;
    }

    .btn-primary {
        padding: 1.25rem 2.5rem;
        letter-spacing: 0.072rem;
    }

    .slider-cta .btn-primary {
        position: absolute;
        top: 20px;
        right: 5rem;
    }

    .slider-cta .btn-primary span {
        min-width: 270px;
    }

    .section {
        padding: 6.25rem 50px 0;
    }

    .section-title {
        margin-bottom: 60px;
    }

    .card {
        flex-direction: row;
        gap: 2.5rem;
        padding: 3rem;
    }

    .card-title {

        letter-spacing: 0.156rem;
    }

    .news-list {
        gap: 1.25rem;
    }

    .news-item .news-link {
        gap: 1.25rem;
        flex-direction: row;
    }

    .sns-buttons {
        flex-direction: row;
        gap: 1.5625rem;
        width: 100%;
    }

    .sns-btn {
        width: 33%;
    }

    .member-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 3.125rem;
    }

    .concept-content {
        padding: 5rem 4rem;
    }

    .concept-text {
        line-height: 1.8;
        letter-spacing: 0.1rem;
    }

    .sponsor-card {
        padding: 3rem 2.5rem;
        display: flex;
        gap: 2rem;
    }

    .sponsor-card.top-card {
        border-radius: 20px 20px 0 0;
    }

    .sponsor-card.bottom-card {
        border-radius: 0 0 20px 20px;
    }

    .sponsor-title {
        letter-spacing: 0.1rem;
        width: 200px;
        font-weight: 500;
    }

    .sponsor-group-wrap {
        display: flex;
        flex-direction: column;
        flex-wrap: wrap;
        gap: 2rem;
    }

    .sponsor-group {
        display: flex;
        flex-wrap: wrap;
        gap: 2rem;
    }

    .sponsor-group h4 {
        width: 250px;
    }

    /*.sponsor-group ul {*/
    /*    width: calc(100% - 250px)*/
    /*}*/

    .sponsor-list {
        margin: 0;
    }

    .contact-form {
        padding: 3.75rem 3.125rem;
    }

    .form-group {
        flex-direction: row;
        gap: 2rem;
        align-items: center;
    }

    .form-label {
        width: 170px;
    }


    footer {
        padding: 3.75rem 6.25rem;
    }

    .footer-container {
        flex-direction: row;
    }

    .footer-info {
        align-items: flex-end;
    }
}