@charset "UTF-8";

/* ===================================
   ヒーロー (Hero)
   =================================== */
.st-hero {
    width: 100%;
    background-color: #9fd9f6;
    display: flex;
    justify-content: center;
    padding: 80px 20px 60px;
}

.st-hero-inner {
    max-width: 860px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 40px;
}

.st-hero-chara {
    width: 160px;
    flex-shrink: 0;
}

.st-hero-text {
    flex: 1;
}

.st-hero-en {
    font-size: 13px;
    letter-spacing: 0.2em;
    color: #fff;
    font-weight: bold;
    margin: 0 0 8px;
}

.st-hero-title {
    font-size: 52px;
    color: #516881;
    margin: 0 0 20px;
    letter-spacing: 0.08em;
}

.st-hero-sub {
    font-size: 16px;
    color: #516881;
    line-height: 2;
    margin: 0;
}

/* ===================================
   強み一覧 (List)
   =================================== */
.st-list {
    width: 100%;
    background-color: #fff;
    display: flex;
    justify-content: center;
    padding: 80px 20px 100px;
}

.st-list-inner {
    max-width: 860px;
    width: 100%;
}

/* メイン画像 */
.st-main-photo {
    width: 100%;
    margin-bottom: 60px;
    border-radius: 16px;
    overflow: hidden;
}

.st-main-photo img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    display: block;
}

@media (max-width: 600px) {
    .st-main-photo img {
        height: 240px;
    }
}


/* 区切り線 */
.st-divider {
    border: none;
    border-top: 2px dashed #d9eaf4;
    margin: 60px 0;
}

/* 強みアイテム */
.st-item {
    display: flex;
    align-items: flex-start;
    gap: 40px;
}

.st-item--reverse {
    flex-direction: row-reverse;
}

/* 番号 */
.st-item-num {
    font-size: 72px;
    font-weight: bold;
    color: #9fd9f6;
    line-height: 1;
    flex-shrink: 0;
    width: 120px;
    text-align: center;
    letter-spacing: -0.02em;
}

/* 本文エリア */
.st-item-body {
    flex: 1;
    padding-top: 8px;
}

.st-item-title {
    font-size: 24px;
    font-weight: bold;
    color: #516881;
    margin: 0 0 16px;
}

.st-item-text {
    font-size: 15px;
    color: #555;
    line-height: 1.9;
    margin: 0;
}

/* ===================================
   レスポンシブ
   =================================== */
@media (max-width: 768px) {
    .st-hero {
        padding: 60px 20px 40px;
    }

    .st-hero-inner {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

    .st-hero-chara {
        position: static;
        width: 100px;
        margin-bottom: 8px;
    }

    .st-hero-title-row {
        flex-direction: column;
        gap: 0;
    }

    .st-hero-title {
        font-size: 36px;
    }

    .st-item,
    .st-item--reverse {
        flex-direction: column;
        gap: 16px;
    }

    .st-item-num {
        width: auto;
        font-size: 56px;
        text-align: left;
    }
}

@media (max-width: 480px) {
    .st-hero-title {
        font-size: 28px;
    }

    .st-item-num {
        font-size: 44px;
    }

    .st-item-title {
        font-size: 20px;
    }
}

/* ===================================
   ネットワーク統計バナー
   =================================== */
.st-network-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    background: linear-gradient(135deg, #f0faff 0%, #fff5f8 100%);
    border-radius: 20px;
    padding: 36px 48px;
    margin-top: 32px;
    position: relative;
    overflow: hidden;
}

/* 大きな装飾円 */
.st-network-stats::before {
    content: '';
    position: absolute;
    width: 130px;
    height: 130px;
    border-radius: 50%;
    background: rgba(159, 217, 246, 0.3);
    top: -40px;
    right: 50px;
}

.st-network-stats::after {
    content: '';
    position: absolute;
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: rgba(254, 76, 127, 0.18);
    bottom: -25px;
    left: 40px;
}

.st-network-stat {
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 0 40px;
}

.st-network-stat-num {
    display: block;
    font-size: 58px;
    font-weight: bold;
    line-height: 1;
    font-family: 'Roboto', sans-serif;
    letter-spacing: -0.02em;
}

.st-network-stat--countries .st-network-stat-num {
    color: #30b9bf;
}

.st-network-stat--members .st-network-stat-num {
    color: #fe4c7f;
}

.st-network-stat-unit {
    font-size: 20px;
    font-weight: bold;
    letter-spacing: 0.02em;
}

.st-network-stat-label {
    display: block;
    font-size: 13px;
    color: #888;
    margin-top: 8px;
    letter-spacing: 0.05em;
}

.st-network-stat-sep {
    width: 1px;
    height: 64px;
    background: #d9eaf4;
    flex-shrink: 0;
}

/* 03用カラーバリエーション（パープル・ティール） */
.st-network-stats--purple {
    background: linear-gradient(135deg, #f5f0ff 0%, #f0f9ff 100%);
    align-items: flex-start;
    gap: 0;
    padding: 32px 40px;
}

.st-network-stats--purple::before {
    background: rgba(160, 120, 240, 0.2);
    width: 110px;
    height: 110px;
    top: -30px;
    right: 80px;
    left: auto;
}

.st-network-stats--purple::after {
    background: rgba(48, 185, 191, 0.18);
    bottom: -20px;
    right: auto;
    left: 60px;
}

.st-tags-block {
    flex: 1;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.st-tags-block--lang {
    border-left: 1px solid #ddd8f5;
}

.st-tags-heading {
    font-size: 11px;
    font-weight: bold;
    color: #aaa;
    letter-spacing: 0.12em;
    margin: 0 0 12px;
}

.st-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.st-tag {
    font-size: 12px;
    color: #7b5ea7;
    background: rgba(255, 255, 255, 0.85);
    border: 1.5px solid #c5aee8;
    border-radius: 20px;
    padding: 5px 14px;
    font-weight: bold;
    line-height: 1.4;
}

.st-tag--lang {
    color: #30b9bf;
    border-color: #9fd9f6;
}

@media (max-width: 640px) {
    .st-network-stats--purple {
        flex-direction: column;
        gap: 24px;
    }

    .st-tags-block--lang {
        border-left: none;
        border-top: 1px solid #ddd8f5;
        padding-top: 20px;
    }
}

/* 05用カラーバリエーション（インディゴ・ティール） */
.st-network-stats--navy {
    background: linear-gradient(135deg, #f0f4ff 0%, #f0faff 100%);
}

.st-network-stats--navy::before {
    background: rgba(80, 120, 220, 0.2);
    width: 120px;
    height: 120px;
    top: -35px;
    left: 60px;
    right: auto;
}

.st-network-stats--navy::after {
    background: rgba(48, 185, 191, 0.2);
    bottom: -20px;
    right: 50px;
    left: auto;
}

.st-check-mark--navy {
    color: #5078dc;
}

@media (max-width: 480px) {
    .st-network-stats--navy .st-network-stat {
        padding: 0 12px;
    }
}

/* 04用カラーバリエーション（オレンジ・ゴールド） */
.st-network-stats--warm {
    background: linear-gradient(135deg, #fffbf0 0%, #fff8f0 100%);
}

.st-network-stats--warm::before {
    background: rgba(255, 190, 60, 0.25);
    width: 120px;
    height: 120px;
    top: -35px;
    right: 60px;
    left: auto;
}

.st-network-stats--warm::after {
    background: rgba(255, 140, 60, 0.18);
    bottom: -20px;
    left: 50px;
    right: auto;
}

.st-network-stat--check {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.st-check-mark {
    font-size: 40px;
    font-weight: bold;
    line-height: 1;
    color: #f5a623;
}

.st-check-text {
    font-size: 16px;
    font-weight: bold;
    color: #516881;
    text-align: center;
    line-height: 1.5;
    letter-spacing: 0.03em;
}

@media (max-width: 480px) {
    .st-network-stats--warm .st-network-stat {
        padding: 0 12px;
    }

    .st-check-text {
        font-size: 14px;
    }
}

/* 02用カラーバリエーション（黄緑・オレンジ） */
.st-network-stats--green {
    background: linear-gradient(135deg, #f2fbf5 0%, #fffbf0 100%);
}

.st-network-stats--green::before {
    background: rgba(100, 210, 140, 0.25);
    top: -35px;
    left: 50px;
    right: auto;
}

.st-network-stats--green::after {
    background: rgba(255, 180, 60, 0.2);
    bottom: -20px;
    right: 40px;
    left: auto;
}

.st-network-stat--programs .st-network-stat-num {
    color: #3dba72;
}

.st-network-stat--participants .st-network-stat-num {
    color: #f5a623;
}

@media (max-width: 480px) {
    .st-network-stats {
        padding: 28px 20px;
        gap: 0;
    }

    .st-network-stat {
        padding: 0 20px;
    }

    .st-network-stat-num {
        font-size: 40px;
    }

    .st-network-stat-unit {
        font-size: 15px;
    }
}

/* ===================================
   関連コラム (Related Columns)
   =================================== */
.st-related {
    width: 100%;
    background-color: #9fd9f6;
    padding: 70px 20px 80px;
}

.st-related-inner {
    max-width: 980px;
    margin: 0 auto;
}

.st-related-head {
    text-align: center;
    margin-bottom: 48px;
}

.st-related-en {
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 0.3em;
    color: #516881;
    margin: 0 0 8px;
}

.st-related-title {
    font-size: 30px;
    font-weight: bold;
    color: #1e3a5a;
    margin: 0 0 12px;
}

.st-related-sub {
    font-size: 14px;
    color: #516881;
    margin: 0;
}

.st-related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.st-related-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
}

.st-related-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.st-related-thumb {
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
}

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

.st-related-body {
    padding: 16px 20px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.st-related-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: bold;
    padding: 3px 10px;
    border-radius: 20px;
    background-color: #e8f4fb;
    color: #516881;
}

.st-related-title-text {
    font-size: 14px;
    font-weight: bold;
    color: #1e3a5a;
    line-height: 1.6;
    margin: 0;
}

.st-related-more {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

@media (max-width: 760px) {
    .st-related-grid {
        grid-template-columns: 1fr;
    }
    
    .st-hero-chara {
        width: 100px;
    }
}