@charset "UTF-8";

/* ===================================
   基本設定・リセット
   =================================== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 100%;
}

body {
    color: #000;
    font-family: 'YuGothic', 'Yu Gothic', sans-serif;
    font-weight: 400;
    margin: 0;
    padding: 0;
    letter-spacing: 0.1em;
}

img {
    max-width: 100%;
    vertical-align: bottom;
}

li {
    list-style: none;
}

a {
    color: #000;
    text-decoration: none;
    transition: all 0.2s;
}

a:hover {
    opacity: 0.7;
}

h2 {
    font-size: 48px;
}

/* 共通クラス */
.wrapper {
    max-width: 940px;
    padding: 0 20px;
    margin: 0 auto;
}

.wrapper-1080 {
    max-width: 1120px;
    padding: 0 20px;
    margin: 0 auto;
}

.section-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0;
    color: #516881;
}

.section-icon {
    width: 100px;
}

/* ===================================
   波形区切り (Wave Divider)
   =================================== */
.wave-divider {
    width: 100%;
    overflow: hidden;
    line-height: 0;
    display: block;
}

.wave-divider svg {
    display: block;
    width: 100%;
    height: 120px;
}

/* ===================================
   ローディング画面 (Splash)
   =================================== */
#splash {
    display: none;
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: 999;
    background: #fff;
    text-align: center;
    color: #fff;
}

#splash-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

#splash-logo img {
    width: 260px;
}

.fadeUp {
    animation-name: fadeUpAnime;
    animation-duration: 0.5s;
    animation-fill-mode: forwards;
    opacity: 0;
}

@keyframes fadeUpAnime {
    from {
        opacity: 0;
        transform: translateY(100px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   ヘッダー (Header)
   =================================== */
#header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    width: 100%;
    min-height: 76px;
}

/* ロゴ */
.header-logo {
    display: flex;
    align-items: center;
    padding: 0 24px;
    flex-shrink: 0;
}

#header .logo {
    margin: 0;
    font-size: 1rem;
}

#header .logo a {
    display: block;
}

#header .logo img {
    width: 210px;
    display: block;
}

/* ナビゲーション（2段） */
.header-nav-wrap {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* 上段ナビ */
.header-top-nav {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 3px 20px 3px;
    border-bottom: 1px solid #e8f5fd;
    background-color: #f0f9fe;
}

.top-nav-list {
    display: flex;
    gap: 24px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.top-nav-list li a {
    font-size: 12px;
    color: #555;
    transition: color 0.2s;
}

.top-nav-list li a:hover {
    color: #FF6B4A;
    opacity: 1;
}

/* 下段ナビ */
.header-bottom-nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 7px 20px;
}

.bottom-nav-list {
    display: flex;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.bottom-nav-list li a {
    font-size: 15px;
    font-weight: 700;
    color: #333;
    position: relative;
    padding-bottom: 4px;
    transition: color 0.2s;
}

.bottom-nav-list li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #FF6B4A;
    transition: width 0.2s;
}

.bottom-nav-list li a:hover,
.bottom-nav-list li a.active {
    color: #FF6B4A;
    opacity: 1;
}

.bottom-nav-list li a:hover::after,
.bottom-nav-list li a.active::after {
    width: 100%;
}

/* メガメニュー */
.has-dropdown {
    position: relative;
}

.mega-menu {
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background: #fff;
    border-top: 3px solid #FF6B4A;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
    border-radius: 0 0 12px 12px;
    padding: 20px 16px;
    display: flex;
    gap: 12px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
    z-index: 200;
}

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

.mega-top-row {
    display: flex;
    flex-direction: row;
    gap: 12px;
}

.mega-item.mega-item--wide {
    width: 100%;
    flex-direction: row;
    align-items: center;
    gap: 14px;
    background-color: #f5f9fe;
    border-color: #daeaf7;
    padding: 12px 20px;
    justify-content: space-between;
}

.mega-item.mega-item--wide .mega-body {
    flex-direction: row;
    align-items: center;
    gap: 16px;
    padding: 0;
    flex: 1;
    justify-content: space-between;
}

.mega-item.mega-item--wide .mega-title {
    font-size: 14px;
}

.mega-item.mega-item--wide .mega-desc {
    color: #888;
}

.mega-item.mega-item--wide::after {
    content: "→";
    font-size: 16px;
    color: #9fd9f6;
    margin-left: 12px;
    flex-shrink: 0;
}

.mega-case-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background-color: #fe4c7f;
    flex-shrink: 0;
}

.has-dropdown:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.mega-item {
    display: flex;
    flex-direction: column;
    width: 160px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #f0f0f0;
    transition: box-shadow 0.2s, transform 0.2s;
    color: #333;
}

.mega-item:hover {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
    transform: translateY(-3px);
    opacity: 1;
}

.mega-img {
    width: 100%;
    height: 100px;
    overflow: hidden;
    background: #f0f9fe;
}

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

.mega-body {
    padding: 10px 12px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mega-title {
    font-size: 13px;
    font-weight: 700;
    color: #333;
}

.mega-desc {
    font-size: 11px;
    color: #888;
    line-height: 1.5;
}

/* イベント情報ボタン */
.btn-event {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    background-color: #FF6B4A;
    color: #fff;
    font-weight: 700;
    font-size: 15px;
    line-height: 1.5;
    padding: 14px 24px;
    gap: 6px;
    transition: background-color 0.2s;
    flex-shrink: 0;
    white-space: nowrap;
    border-radius: 50px;
    margin: 0 16px;
}

.btn-event:hover {
    background-color: #e55a38;
    opacity: 1;
    color: #fff;
}

.btn-event-arrow {
    font-size: 16px;
    font-weight: 700;
    line-height: 1;
}

/* ハンバーガーボタン（モバイル） */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    width: 48px;
    height: 48px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    margin: auto 12px;
    flex-shrink: 0;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: #333;
    border-radius: 2px;
    transition: all 0.3s;
    transform-origin: center;
}

.hamburger.is-open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger.is-open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.is-open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}


/* モバイルメニュー */
.mobile-menu {
    display: none;
    background: #fff;
    border-top: 2px solid #f0f0f0;
    padding: 0 20px 24px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.mobile-menu.is-open {
    display: block;
}

.mobile-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.mobile-nav-list li a {
    display: block;
    padding: 14px 4px;
    font-size: 15px;
    font-weight: 700;
    color: #333;
    border-bottom: 1px solid #f0f0f0;
}

.mobile-nav-list li.mobile-nav-sep {
    height: 1px;
    background: #ddd;
    margin: 4px 0;
}

.mobile-nav-list li.mobile-nav-sep ~ li a {
    font-size: 13px;
    font-weight: 400;
    color: #666;
}

.mobile-nav-sub {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.mobile-has-sub.is-open .mobile-nav-sub {
    max-height: 300px;
    padding: 4px 0 10px 0;
}

.mobile-sub-arrow {
    display: inline-block;
    margin-left: 6px;
    font-size: 10px;
    transition: transform 0.3s ease;
    color: #999;
}

.mobile-has-sub.is-open .mobile-sub-arrow {
    transform: rotate(180deg);
}

.mobile-nav-sub li a {
    display: inline-block;
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 500;
    color: #516881;
    background: #f0f7fb;
    border-radius: 20px;
    border: 1px solid #9fd9f6;
}

.mobile-event-btn {
    display: block;
    margin-top: 20px;
    background-color: #FF6B4A;
    color: #fff;
    text-align: center;
    padding: 14px 0;
    border-radius: 8px;
    font-weight: 700;
    font-size: 16px;
    transition: background-color 0.2s;
}

.mobile-event-btn:hover {
    background-color: #e55a38;
    opacity: 1;
    color: #fff;
}

/* ===================================
   レスポンシブ：ヘッダー
   =================================== */
@media (max-width: 1100px) {
    .header-nav-wrap {
        display: none;
    }

    .btn-event {
        display: none;
    }

    .hamburger {
        display: flex;
        margin-left: auto;
    }

    .header-inner {
        min-height: 76px;
    }

    #header .logo img {
        width: 160px;
    }
}

/* ===================================
   トップエリア (Hero)
   =================================== */
.top-area {
    display: flex;
    justify-content: flex-end;
    padding: 40px 0 80px;
}

.top-photo {
    width: 1200px;
    max-width: 72%;
    border-radius: 40px;
    overflow: hidden;
    border: 5px solid #9fd9f6;
    position: relative;
}

.top-letter {
    position: absolute;
    bottom: 3%;
    right: 3%;
    width: 22%;
    z-index: 1;
}

.top-letter img {
    width: 100%;
    height: auto;
    display: block;
}

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

/* ===================================
   ホットトピック (Hot Topics)
   =================================== */
.hot-topics {
    width: 100%;
    background-color: #fff;
    padding: 40px 20px 28px;
}

.hot-topics-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    gap: 20px;
}

.ht-banner {
    flex: 1;
    border-radius: 12px;
    overflow: hidden;
    display: block;
    transition: opacity 0.2s, transform 0.2s;
}

.ht-banner:hover {
    opacity: 0.85;
    transform: translateY(-3px);
}

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

@media (max-width: 700px) {
    .hot-topics-inner {
        flex-direction: column;
    }
}

/* ===================================
   ニュースセクション (News)
   =================================== */
.news {
    width: 100%;
    background-color: #9fd9f6;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 70px 0;
}

.news-img-icon {
    width: 100px;
}

.news-title {
    color: #1e3a5a;
    margin: 0;
}

.news-title-ja {
    color: #1e3a5a;
    font-size: 20px;
}

.news-list {
    width: 760px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 2px 2px #898787;
    padding: 50px;
}

.news-item {
    display: flex;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #eee;
}

.news-item a {
    color: #333;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.cat-label {
    display: inline-block;
    width: 64px;
    text-align: center;
    padding: 5px 0;
    font-size: 11px;
    border-radius: 4px;
    color: #fff;
    line-height: 1;
    margin-right: 16px;
    white-space: nowrap;
    flex-shrink: 0;
}

.cat-event {
    background-color: #fe4c7f;
}

.cat-announce {
    background-color: #3498db;
}

.date {
    margin-right: 12px;
    font-size: 13px;
    color: #aaa;
    white-space: nowrap;
    flex-shrink: 0;
}

.news-name {
    font-size: 15px;
    color: #1e3a5a;
}

.new-badge {
    margin-left: auto;
    font-size: 13px;
    font-weight: bold;
    color: #fe4c7f;
    white-space: nowrap;
    letter-spacing: 0.05em;
}

/* ===================================
   私たちの想いセクション (Opening Remark)
   =================================== */
.opening-remark {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 36px 0;
}

/* ===================================
   プログラムセクション (Program)
   =================================== */
.program {
    width: 100%;
    background-color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 70px 0;
}

.program-subtitle {
    display: block;
    text-align: center;
    margin-top: 8px;
}

.program-area {
    padding: 20px;
}

/* SERVICE カード 共通 */
.service-card {
    position: relative;
    width: 800px;
    background: #fffaf9;
    border-radius: 16px;
    padding: 36px 40px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.07);
    margin-bottom: 20px;
    overflow: hidden;
    display: flex;
    gap: 30px;
    align-items: flex-start;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.1);
}

.service-bg-number {
    position: absolute;
    top: -14px;
    left: 18px;
    font-size: 110px;
    font-weight: 900;
    line-height: 1;
    pointer-events: none;
    user-select: none;
}

.service-card:nth-child(1) .service-bg-number {
    color: rgba(254, 76, 127, 0.12);
}

.service-card:nth-child(2) .service-bg-number {
    color: rgba(48, 185, 191, 0.12);
}

.service-card:nth-child(3) .service-bg-number {
    color: rgba(254, 76, 127, 0.12);
}

.service-card-body {
    flex: 1;
    position: relative;
    z-index: 1;
}

.service-card-photo {
    width: 220px;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.service-card-photo img {
    width: 100%;
    border-radius: 12px;
    object-fit: cover;
}

.service-card-illust {
    width: 80%;
}

/* SERVICE 共通パーツ */
.service-head {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    font-size: 14px;
}

.service-letter {
    background-color: #fe4c7f;
    border-radius: 3px;
    color: #fff;
    padding: 2px 5px;
    margin-right: 10px;
    font-size: 12px;
}

.class-title {
    font-size: 22px;
    font-weight: 700;
    color: #30b9bf;
    border-left: 4px solid #30b9bf;
    padding: 4px 0 4px 12px;
    margin: 6px 0 16px;
    display: block;
}

.service-text {
    font-size: 14px;
    line-height: 1.6;
}

/* SERVICE リンクボタン */
.service-link {
    display: inline-block;
    margin-top: 12px;
    color: #30b9bf;
    font-size: 14px;
    font-weight: bold;
    text-decoration: none;
    border-bottom: 1px solid #30b9bf;
    padding-bottom: 2px;
    transition: color 0.2s, border-color 0.2s;
}

.service-link::after {
    content: ' →';
}

.service-link:hover {
    color: #fe4c7f;
    border-color: #fe4c7f;
}

/* SERVICE 1 サブセクション（出張教室・コンテンツ紹介） */
.service1-sub {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    border-top: 1px solid #e8f5fd;
    margin-top: 24px;
    padding-top: 24px;
}

.service1-sub-left,
.service1-sub-right {
    flex: 1;
    background-color: #f0f9fe;
    border-radius: 8px;
    padding: 20px;
}

.service1-sub-heading {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.service1-sub-heading img {
    width: 30px;
    margin-right: 10px;
}

.service1-sub-label {
    font-weight: bold;
    font-size: 18px;
}

/* ===================================
   実績セクション (Achievements)
   =================================== */
.achievements {
    background-color: #c8e6c9;
    padding: 80px 20px;
    text-align: center;
}

.achievements-inner {
    max-width: 860px;
    margin: 0 auto;
}

.achievements-label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.3em;
    color: #388e3c;
    margin-bottom: 10px;
}

.achievements-title {
    font-size: 28px;
    font-weight: 700;
    color: #1e3a5a;
    margin: 0 0 60px;
    letter-spacing: 0.08em;
}

.achievements-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}

.stat-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.stat-number-wrap {
    display: flex;
    align-items: flex-start;
    line-height: 1;
}

.stat-number {
    font-size: 80px;
    font-weight: 900;
    color: #1e3a5a;
    letter-spacing: -0.02em;
    font-family: 'Roboto', sans-serif;
}

.stat-plus {
    font-size: 36px;
    font-weight: 700;
    color: #FF6B4A;
    margin-top: 10px;
    font-family: 'Roboto', sans-serif;
}

.stat-label {
    font-size: 16px;
    font-weight: 700;
    color: #1e3a5a;
    letter-spacing: 0.05em;
}

.stat-sublabel {
    font-size: 12px;
    color: rgba(30, 58, 90, 0.6);
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    height: 100px;
    background: rgba(30, 58, 90, 0.2);
    flex-shrink: 0;
}

/* ===================================
   共通ボタン (Button)
   =================================== */
.btn-area {
    padding: 50px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.btn-more-info {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f5f29f;
    width: 250px;
    height: 50px;
    border-radius: 25px;
    box-shadow: 2px 2px #898787;
    transition: all 0.1s;
    position: relative;
    overflow: hidden;
}

.btn-more-info:hover {
    box-shadow: none;
    transform: translate(2px, 2px);
}

.btn-more-info img {
    height: 50px;
    width: auto;
    margin-right: 10px;
}

.btn-letter {
    font-size: 14px;
}

/* ===================================
   ボランティア募集セクション (Volunteer)
   =================================== */
.volunteer {
    width: 100%;
    background-color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 70px 20px;
}

.volunteer-content {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 860px;
    padding: 0 180px;
}

.volunteer-face {
    position: absolute;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid #fff;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.volunteer-face-1 { top: 20px;   left: 10px;  width: 120px; height: 120px; transform: rotate(-11deg); }
.volunteer-face-2 { top: 60px;   right: 0px;  width: 145px; height: 145px; transform: rotate(7deg);   }
.volunteer-face-3 { bottom: 40px; left: 30px; width: 135px; height: 135px; transform: rotate(4deg);   }
.volunteer-face-4 { bottom: 20px; right: 15px; width: 115px; height: 115px; transform: rotate(-14deg); }

@media (max-width: 900px) {
    .volunteer-content {
        padding: 0 20px;
    }
    .volunteer-face {
        display: none;
    }
}

.volunteer-lead {
    text-align: center;
    font-size: 15px;
    line-height: 2;
    color: #516881;
    margin: 30px 0 60px;
}

.volunteer-points {
    display: flex;
    gap: 24px;
    max-width: 860px;
    width: 100%;
    margin-bottom: 10px;
}

.volunteer-point {
    flex: 1;
    background-color: #9fd9f6;
    border-radius: 20px;
    padding: 36px 24px 32px;
    text-align: center;
    box-shadow: 5px 5px 0 rgba(81, 104, 129, 0.25);
}

.volunteer-point-num {
    width: 60px;
    height: 60px;
    background-color: #fe4c7f;
    border-radius: 50%;
    color: #fff;
    font-size: 20px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    letter-spacing: 0.05em;
}

.volunteer-point:nth-child(2) .volunteer-point-num {
    background-color: #30b9bf;
}

.volunteer-point:nth-child(3) .volunteer-point-num {
    background-color: #f87a6d;
}

.volunteer-point-title {
    font-size: 16px;
    font-weight: bold;
    color: #516881;
    margin: 0 0 12px;
}

.volunteer-point-text {
    font-size: 13px;
    line-height: 1.8;
    color: #666;
    margin: 0;
}

/* ===================================
   スポンサーセクション (Sponsors)
   =================================== */
.sponsors {
    width: 100%;
    background-color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 60px 20px;
}

.sponsors-heading {
    text-align: center;
    margin-bottom: 48px;
}

.sponsors-title {
    color: #1e3a5a;
    margin: 0 0 10px;
    letter-spacing: 0.08em;
}

.sponsors-subtitle {
    font-size: 15px;
    color: #1e3a5a;
    line-height: 2;
    text-align: center;
}

@media (max-width: 768px) {
    .sponsors-subtitle {
        font-size: 14px;
        line-height: 1.9;
    }
}

.sponsors-table {
    width: 100%;
    max-width: 960px;
}

.sponsors-row {
    display: flex;
    align-items: center;
    gap: 32px;
    padding: 28px 0;
    border-bottom: 1px solid rgba(30, 58, 90, 0.15);
}

.sponsors-row:last-child {
    border-bottom: none;
}

.sponsors-row-label {
    width: 140px;
    flex-shrink: 0;
    font-size: 16px;
    font-weight: bold;
    color: #1e3a5a;
    line-height: 1.7;
}

.sponsors-row-logos {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: center;
}

.sponsor-card {
    background-color: #fff;
    border-radius: 12px;
    padding: 18px 16px 14px;
    width: 140px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 4px 4px 0 rgba(81, 104, 129, 0.2);
    color: inherit;
}

a.sponsor-card {
    transition: transform 0.2s, box-shadow 0.2s;
}

a.sponsor-card:hover {
    transform: translateY(-4px);
    box-shadow: 4px 8px 0 rgba(81, 104, 129, 0.2);
    opacity: 1;
}

.sponsor-logo-wrap {
    width: 100px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.sponsor-logo-wrap img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.sponsor-logo-placeholder {
    width: 100px;
    height: 60px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: bold;
    letter-spacing: 0.15em;
    color: #fff;
}

.sp-color-1 { background-color: #fe4c7f; }
.sp-color-2 { background-color: #30b9bf; }
.sp-color-3 { background-color: #f87a6d; }
.sp-color-4 { background-color: #516881; }
.sp-color-5 { background-color: #9fd9f6; color: #516881; }
.sp-color-6 { background-color: #f5c842; color: #516881; }

.sponsor-name {
    font-size: 13px;
    color: #516881;
    font-weight: bold;
    text-align: center;
    margin: 0;
    line-height: 1.5;
}

/* ===================================
   お問い合わせセクション (Contact)
   =================================== */
.contact {
    width: 100%;
    background-color: #9fd9f6;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 60px 20px 70px;
}

.contact-inner {
    width: 100%;
    max-width: 680px;
}

.contact-heading {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 50px;
}

.contact-title {
    font-size: 36px;
    color: #516881;
    margin: 0 0 12px;
    letter-spacing: 0.05em;
}

.contact-subtitle {
    font-size: 14px;
    color: #888;
    margin: 0;
    line-height: 1.8;
    text-align: center;
}

/* フォーム行 */
.form-row {
    display: flex;
    flex-direction: column;
    margin-bottom: 28px;
}

.form-label {
    font-size: 14px;
    font-weight: bold;
    color: #516881;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-required {
    background-color: #fe4c7f;
    color: #fff;
    font-size: 10px;
    font-weight: bold;
    padding: 2px 7px;
    border-radius: 3px;
    letter-spacing: 0.05em;
}

.form-optional {
    background-color: #aaa;
    color: #fff;
    font-size: 10px;
    font-weight: bold;
    padding: 2px 7px;
    border-radius: 3px;
    letter-spacing: 0.05em;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 13px 16px;
    border: 2px solid #d9eaf4;
    border-radius: 10px;
    font-size: 14px;
    font-family: inherit;
    color: #333;
    background-color: #f7fbfe;
    outline: none;
    transition: border-color 0.2s, background-color 0.2s;
    letter-spacing: 0.05em;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: #9fd9f6;
    background-color: #fff;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: #bbb;
}

/* セレクトボックス */
.form-select-wrap {
    position: relative;
}

.form-select-wrap::after {
    content: '▾';
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #9fd9f6;
    font-size: 18px;
    pointer-events: none;
}

.form-select {
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
}

/* テキストエリア */
.form-textarea {
    resize: vertical;
    min-height: 140px;
    line-height: 1.7;
}

/* 個人情報保護方針チェック */
.form-privacy {
    background-color: #f7fbfe;
    border: 2px solid #d9eaf4;
    border-radius: 12px;
    padding: 20px 24px;
    font-size: 13px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 36px;
}

.privacy-link {
    color: #30b9bf;
    font-weight: bold;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.privacy-link:hover {
    opacity: 0.75;
}

.privacy-check-label {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 14px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    color: #516881;
}

.privacy-check {
    display: none;
}

.privacy-check-custom {
    width: 22px;
    height: 22px;
    border: 2px solid #9fd9f6;
    border-radius: 6px;
    background-color: #fff;
    flex-shrink: 0;
    position: relative;
    transition: background-color 0.2s, border-color 0.2s;
}

.privacy-check:checked + .privacy-check-custom {
    background-color: #30b9bf;
    border-color: #30b9bf;
}

.privacy-check:checked + .privacy-check-custom::after {
    content: '';
    position: absolute;
    left: 4px;
    top: 1px;
    width: 6px;
    height: 11px;
    border-right: 2px solid #fff;
    border-bottom: 2px solid #fff;
    transform: rotate(45deg);
}

/* 送信ボタン */
.form-submit-area {
    display: flex;
    justify-content: center;
}

.btn-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background-color: #f5f29f;
    border: none;
    width: 260px;
    height: 54px;
    border-radius: 27px;
    box-shadow: 2px 2px #898787;
    cursor: pointer;
    font-size: 15px;
    font-family: inherit;
    font-weight: bold;
    color: #333;
    letter-spacing: 0.1em;
    transition: transform 0.1s, box-shadow 0.1s;
}

.btn-submit img {
    height: 50px;
    width: auto;
}

.btn-submit:hover {
    box-shadow: none;
    transform: translate(2px, 2px);
}

/* ===================================
   フッター (Footer)
   =================================== */
#footer {
    background-color: #516881;
    color: #fff;
    padding: 60px 0 30px;
}

.footer-inner {
    max-width: 1060px;
    padding: 0 40px;
    margin: 0 auto;
}

.footer-top {
    display: flex;
    align-items: flex-start;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
}

.footer-col--brand {
    flex: 0 0 180px;
}

.footer-col--nav {
    flex: 0 0 180px;
}

.footer-col--nav2 {
    flex: 1;
}

.footer-col--contact {
    flex: 0 0 220px;
}

.footer-logo {
    display: block;
    margin-bottom: 16px;
}

.footer-logo img {
    width: 140px;
    height: auto;
}

.footer-tagline {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin: 0;
}

.footer-col-title {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    margin: 0 0 14px;
}

.footer-nav-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 0;
    padding: 0;
}

.footer-nav-list li a {
    color: rgba(255, 255, 255, 0.85);
    font-size: 14px;
    transition: color 0.2s, opacity 0.2s;
}

.footer-nav-list li a:hover {
    color: #9fd9f6;
    opacity: 1;
}

.footer-nav-sub {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin: 6px 0 0 12px;
    padding: 0;
}

.footer-nav-sub li a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
}

.footer-nav-sub li a::before {
    content: "– ";
}

.footer-address {
    font-style: normal;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.9;
    margin: 0 0 20px;
}

.footer-address a {
    color: #9fd9f6;
}

.footer-address a:hover {
    opacity: 0.8;
}

.footer-sns {
    display: flex;
    justify-content: flex-start;
    gap: 12px;
}

.sns-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    color: #fff;
    transition: background-color 0.2s, color 0.2s;
}

.sns-link:hover {
    background-color: #9fd9f6;
    color: #516881;
    opacity: 1;
}

.sns-link svg {
    width: 20px;
    height: 20px;
}

.footer-copy {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.25);
    gap: 16px;
}

.footer-copy-links {
    display: flex;
    gap: 24px;
}

.footer-copy-links a {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.65);
    transition: color 0.2s;
}

.footer-copy-links a:hover {
    color: #9fd9f6;
    opacity: 1;
}

.footer-copy p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.65);
    margin: 0;
    letter-spacing: 0.08em;
}

/* 水色背景セクションのセクションタイトル上書き */
.column-section .section-title {
    color: #1e3a5a;
}

.column-lead {
    text-align: center;
    font-size: 15px;
    line-height: 2;
    color: #1e3a5a;
    margin: 10px 0 0;
}

@media (max-width: 768px) {
    .column-lead {
        font-size: 14px;
        line-height: 1.9;
    }
}

/* ===================================
   レスポンシブ：全体共通
   =================================== */

/* h2 グローバルサイズ縮小 */
@media (max-width: 768px) {
    h2 { font-size: 34px; }
}
@media (max-width: 480px) {
    h2 { font-size: 26px; }
}

/* モバイル専用イベントボタン（PC では非表示） */
.top-event-btn-wrap {
    display: none;
}

/* ===================================
   レスポンシブ：ヒーローエリア (top-area)
   =================================== */
@media (max-width: 900px) {
    .hot-topics {
        display: none;
    }

    .top-area {
        padding: 0 0 40px;
    }

    .top-photo {
        width: 100%;
        max-width: 100%;
        border-radius: 0 0 30px 30px;
        border: none;
        aspect-ratio: 4 / 5;
        height: auto;
    }

    .top-photo img {
        height: 100%;
    }

    .top-letter {
        width: 28%;
        bottom: 7%;
        right: 7%;
    }

    .top-event-btn-wrap {
        display: flex;
        justify-content: center;
        padding: 20px 24px 0;
    }

    .top-event-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        width: 100%;
        max-width: 360px;
        background: linear-gradient(135deg, #FF6B4A 0%, #ff8c3a 100%);
        color: #fff;
        font-weight: 700;
        font-size: 16px;
        padding: 16px 24px;
        border-radius: 50px;
        box-shadow: 0 4px 16px rgba(255, 107, 74, 0.35);
        transition: transform 0.2s, box-shadow 0.2s;
        letter-spacing: 0.03em;
    }

    .top-event-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(255, 107, 74, 0.45);
        color: #fff;
        opacity: 1;
    }

    .top-event-btn-arrow {
        font-size: 18px;
        font-weight: 700;
        margin-left: 2px;
    }
}

@media (max-width: 480px) {
}

/* ===================================
   レスポンシブ：ニュースセクション
   =================================== */
@media (max-width: 860px) {
    .news-list {
        width: calc(100% - 40px);
        padding: 32px 24px;
    }
}

@media (max-width: 600px) {
    .news-list {
        width: calc(100% - 32px);
        padding: 20px 16px;
        box-shadow: 2px 2px #898787;
    }

    .news-item {
        flex-wrap: wrap;
        gap: 6px;
        padding: 10px 0;
    }

    .news-item a {
        flex-wrap: wrap;
        gap: 4px;
    }

    .cat-label {
        margin-right: 8px;
    }

    .date {
        font-size: 13px;
    }

    .news-name {
        font-size: 14px;
    }

    .new-badge {
        font-size: 11px;
    }
}

/* ===================================
   レスポンシブ：プログラムセクション
   =================================== */
@media (max-width: 920px) {
    .program-area {
        width: 100%;
        padding: 20px;
        box-sizing: border-box;
    }

    .service-card {
        width: 100%;
        flex-direction: column;
        gap: 20px;
    }

    .service-card-photo {
        width: 100%;
        flex-direction: row;
        justify-content: center;
        align-items: center;
        gap: 20px;
    }

    .service-card-photo img:not(.service-card-illust) {
        max-width: 240px;
        width: 100%;
    }

    .service-card-illust {
        display: none;
    }

    .service-bg-number {
        font-size: 80px;
    }
}

@media (max-width: 600px) {
    .service-card {
        padding: 24px 16px;
    }

    .service1-sub {
        flex-direction: column;
        gap: 12px;
    }

    .class-title {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .service-card-photo {
        flex-direction: column;
    }

    .service-card-photo img:not(.service-card-illust) {
        max-width: 100%;
    }
}

/* ===================================
   レスポンシブ：ボランティア募集セクション
   =================================== */
@media (max-width: 700px) {
    .volunteer-points {
        flex-direction: column;
        gap: 16px;
    }
}

@media (max-width: 600px) {
    .volunteer-lead {
        font-size: 14px;
        line-height: 1.9;
        margin: 20px 0 40px;
    }
}

/* ===================================
   レスポンシブ：スポンサーセクション
   =================================== */
@media (max-width: 700px) {
    .sponsors-row {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .sponsors-row-label {
        width: auto;
        font-size: 14px;
    }

    .sponsors-row-logos {
        gap: 12px;
    }
}

/* ===================================
   レスポンシブ：実績セクション (Achievements)
   =================================== */
@media (max-width: 700px) {
    .achievements {
        padding: 60px 20px;
    }

    .achievements-title {
        font-size: 22px;
        margin-bottom: 40px;
    }

    .achievements-stats {
        flex-direction: column;
        gap: 36px;
    }

    .stat-divider {
        width: 80px;
        height: 1px;
    }

    .stat-number {
        font-size: 64px;
    }
}

@media (max-width: 480px) {
    .stat-number {
        font-size: 52px;
    }

    .stat-plus {
        font-size: 28px;
    }

    .stat-label {
        font-size: 14px;
    }
}

/* ===================================
   レスポンシブ：フッター (Footer)
   =================================== */
@media (max-width: 860px) {
    .footer-top {
        flex-wrap: wrap;
        gap: 36px;
    }
    .footer-col--brand {
        flex: 0 0 100%;
    }
    .footer-col--nav {
        flex: 1;
        min-width: 140px;
    }
    .footer-col--nav2 {
        flex: 1;
        min-width: 140px;
    }
    .footer-col--contact {
        flex: 1;
        min-width: 200px;
    }
}

@media (max-width: 560px) {
    .footer-inner {
        padding: 0 20px;
    }
    .footer-top {
        flex-direction: column;
        gap: 28px;
        padding-bottom: 32px;
    }
    .footer-col--nav,
    .footer-col--nav2,
    .footer-col--contact {
        flex: 0 0 100%;
    }
    .footer-copy {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .footer-copy p {
        font-size: 11px;
    }
}

/* ===================================
   コラムスライダーセクション (Column Slider)
   =================================== */
.column-section {
    width: 100%;
    background-color: #9fd9f6;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 60px 0 44px;
}

/* スライダー全体ラッパー */
.column-slider-wrap {
    display: flex;
    align-items: center;
    gap: 16px;
    max-width: 1500px;
    width: 100%;
    padding: 30px 20px 10px;
    box-sizing: border-box;
}

/* ビューポート（スライドの見える窓） */
.column-viewport {
    overflow: hidden;
    flex: 1;
    min-width: 0;
}

/* スライドトラック */
.column-track {
    display: flex;
    gap: 20px;
    transition: transform 0.4s ease;
    will-change: transform;
}

/* カード */
.column-card {
    flex-shrink: 0;
    background-color: #fff;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 2px 2px #898787;
    cursor: pointer;
}

/* カテゴリ別シャドウ */
.column-card:has(.col-tag-edu)      { box-shadow: 5px 5px #516881; }
.column-card:has(.col-tag-culture)  { box-shadow: 5px 5px #30b9bf; }
.column-card:has(.col-tag-volunteer){ box-shadow: 5px 5px #f87a6d; }
.column-card:has(.col-tag-report)   { box-shadow: 5px 5px #fe4c7f; }

/* サムネイル（仮置き画像） */
.column-thumb {
    width: 100%;
    height: 225px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.column-thumb::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(30, 58, 90, 0.55) 0%, rgba(30, 58, 90, 0.1) 50%, transparent 100%);
    pointer-events: none;
}

.column-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.column-thumb-label {
    font-size: 11px;
    font-weight: bold;
    letter-spacing: 0.15em;
    color: rgba(255, 255, 255, 0.75);
}

.col-thumb-1 { background-color: #30b9bf; }
.col-thumb-2 { background-color: #fe4c7f; }
.col-thumb-3 { background-color: #f87a6d; }
.col-thumb-4 { background-color: #516881; }
.col-thumb-5 { background-color: #FF6B4A; }
.col-thumb-6 { background-color: #f5c842; }

/* カード本文 */
.column-body {
    padding: 16px 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* 日付＋執筆者行 */
.column-bottom-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.column-card-author {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.column-card-author:hover .column-card-author-name {
    text-decoration: underline;
}

.column-card-author-img {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid #d0e4f0;
}

.column-card-author-name {
    font-size: 14px;
    font-weight: bold;
    color: #555;
    white-space: nowrap;
}

/* カテゴリタグ */
.column-tag {
    display: inline-block;
    font-size: 10px;
    font-weight: bold;
    padding: 3px 10px;
    border-radius: 20px;
    color: #fff;
    letter-spacing: 0.05em;
    align-self: flex-start;
    white-space: nowrap;
}

.col-tag-culture  { background-color: #30b9bf; }
.col-tag-edu      { background-color: #516881; }
.col-tag-report   { background-color: #fe4c7f; }
.col-tag-volunteer{ background-color: #f87a6d; }

/* タイトル・本文・日付 */
.column-title {
    font-size: 14px;
    font-weight: bold;
    color: #333;
    line-height: 1.6;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.column-excerpt {
    font-size: 12px;
    color: #666;
    line-height: 1.7;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.column-date {
    font-size: 11px;
    color: #aaa;
    margin-top: 4px;
    display: block;
}

/* 矢印ボタン */
.column-btn {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid #fff;
    background-color: #fff;
    color: #516881;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 3px 3px 0 rgba(81, 104, 129, 0.25);
    transition: background-color 0.2s, color 0.2s, box-shadow 0.2s;
}

.column-btn:hover {
    background-color: #516881;
    color: #fff;
    border-color: #516881;
}

.column-btn:disabled {
    opacity: 0.35;
    cursor: default;
    pointer-events: none;
}

/* ドットインジケーター */
.column-dots-wrap {
    display: flex;
    gap: 8px;
    margin-top: 24px;
}

.column-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(81, 104, 129, 0.3);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: background-color 0.25s, transform 0.25s;
}

.column-dot.is-active {
    background-color: #516881;
    transform: scale(1.4);
}

/* ===================================
   コラムスライダー レスポンシブ
   =================================== */
@media (max-width: 768px) {
    .column-slider-wrap {
        gap: 10px;
        padding: 20px 12px 10px;
    }

    .column-btn {
        width: 36px;
        height: 36px;
        font-size: 15px;
    }
}

@media (max-width: 600px) {
    .column-btn {
        display: none;
    }

    .column-slider-wrap {
        padding: 20px 0 10px;
    }

    .column-viewport {
        overflow-x: scroll;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding: 0 16px;
        box-sizing: border-box;
    }

    .column-track {
        transform: none !important;
        padding: 4px 0;
    }

    .column-card {
        width: 82vw !important;
        scroll-snap-align: start;
        flex-shrink: 0;
    }
}

/* ===================================
   スクロールリビール
   =================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.is-revealed {
    opacity: 1;
    transform: translateY(0);
}
.reveal-d1 { transition-delay: 0.10s; }
.reveal-d2 { transition-delay: 0.20s; }
.reveal-d3 { transition-delay: 0.30s; }
.reveal-d4 { transition-delay: 0.40s; }