.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 汎用スタイル */
.section-padding {
    padding: 80px 0;
    margin-top: 80px;
    padding-top: 0;
    padding-bottom: 0;
}

.bg-light-sky {
    background-color: #f5f8f9; /* 明るい青みがかったグレー */
    padding-top: 50px;
}

/* --- アニメーション設定 --- */
.fade-in,
.problem-card-sky,
.merit-item-sky,
.demand-card-sky {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

.fade-in.visible,
.problem-card-sky.visible,
.merit-item-sky.visible,
.demand-card-sky.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- ヒーローセクション --- */
.hero-sky {
    background: linear-gradient(135deg, #00796b 0%, #004d40 100%); /* 深い緑のグラデーション */
    color: #fff;
    text-align: center;
    padding: 120px 0;
}

.tag-sky {
    display: inline-block;
    background-color: #ffd700;
    color: #004d40;
    padding: 8px 20px;
    border-radius: 25px;
    font-weight: bold;
    margin-bottom: 20px;
    font-size: 18px;
}

.hero-sky h1 {
    font-size: 48px;
    margin-bottom: 30px;
}

.lead-text {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.btn-cta-sky {
    display: inline-block;
    padding: 15px 35px;
    border-radius: 50px;
    font-weight: bold;
    text-decoration: none;
    font-size: 20px;
    transition: background-color 0.3s, transform 0.3s;
}

.btn-primary-sky {
    background-color: #ff5722; /* オレンジ */
    color: #fff;
    box-shadow: 0 5px 15px rgba(255, 87, 34, 0.4);
}

.btn-primary-sky:hover {
    background-color: #e64a19;
    transform: translateY(-2px);
}

.btn-large-sky {
    padding: 20px 60px;
    font-size: 24px;
}

/* --- タイトル共通 --- */
.section-title-sky {
    font-size: 32px;
    text-align: center;
    margin-bottom: 50px;
    color: #004d40;
}

.section-title-sky i {
    color: #ff5722;
    margin-right: 10px;
}

/* --- 悩みセクション --- */
.problem-grid-sky {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.problem-card-sky {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    text-align: center;
    flex: 1;
}

.problem-card-sky i {
    font-size: 40px;
    color: #ff5722;
    margin-bottom: 15px;
}

.problem-card-sky h3 {
    font-size: 20px;
    color: #333;
    margin-top: 5px !important;
}

/* --- メリットセクション --- */
.merit-item-sky {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 60px;
    padding: 50px;
    border-radius: 10px;
    background-color: #fff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.merit-item-sky.reverse {
    flex-direction: row-reverse; /* 画像とテキストを交互に配置 */
}

.merit-icon-sky {
    flex-shrink: 0;
    width: 100px;
    height: 100px;
    background-color: #004d40;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.merit-icon-sky i {
    font-size: 45px;
    color: #ffd700;
}

.merit-text-sky {
    flex-grow: 1;
}

.merit-h3-sky {
    font-size: 24px;
    color: #ff5722;
    border-bottom: 2px solid #e0e0e0;
    padding-bottom: 5px;
    margin-top: 0;
}

/* --- 地域ニーズセクション --- */
.demand-grid-sky {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.demand-card-sky {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    text-align: center;
    flex: 1 1 300px; /* 300pxの最小幅で折り返す */
}

.demand-card-sky i {
    font-size: 40px;
    color: #004d40;
    margin-bottom: 15px;
}

.demand-card-sky h3 {
    font-size: 22px;
    color: #333;
    margin-top: 10px !important;
}

/* --- CTAボックス --- */
.cta-box-sky {
    background-color: #34495e; /* 暗めの背景色 */
    color: #fff;
    text-align: center;
    padding: 60px 0;
}

.cta-box-sky h2 {
    font-size: 32px;
    margin-top: 0;
}

.cta-box-sky p {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
}

/* ============================ */
/* レスポンシブ対応 */
/* ============================ */

@media (max-width: 992px) {
    .hero-sky h1 {
        font-size: 40px;
    }
    .problem-grid-sky {
        flex-wrap: wrap;
    }
    .problem-card-sky {
        flex: 1 1 45%;
    }
    .merit-item-sky,
    .merit-item-sky.reverse {
        flex-direction: column;
        text-align: center;
    }
    .merit-icon-sky {
        margin-bottom: 20px;
    }
    .merit-text-sky {
        text-align: left; /* テキストは左寄せに戻す */
    }
    .demand-card-sky {
        flex: 1 1 45%;
    }
}

@media (max-width: 576px) {
    .hero-sky h1 {
        font-size: 30px;
    }
    .problem-card-sky,
    .demand-card-sky {
        flex: 1 1 100%;
        padding: 25px;
    }
    .btn-large-sky {
        padding: 15px 40px;
        font-size: 20px;
    }
    .merit-h3-sky {
        font-size: 20px;
        margin-bottom: 20px;
    }
}


/* --- 事例セクション --- */
.example-grid-sky {
    display: flex;
    gap: 40px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 50px;
}

.example-card-sky {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    flex: 1 1 450px; /* ある程度の幅を確保しつつ折り返す */
    max-width: 500px; /* カードの最大幅 */
}

.example-card-sky img {
    width: 100%;
    height: 300px; /* 画像の高さを固定 */
    object-fit: cover; /* 画像がはみ出す場合は中央を基準にトリミング */
    display: block;
}

.example-content-sky {
    padding: 25px;
}

.example-content-sky h3 {
    font-size: 22px;
    color: #004d40;
    margin-top: 0;
    margin-bottom: 10px;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
}

.example-content-sky .tag-location {
    font-size: 14px;
    color: #888;
    background-color: #e0f2f1;
    display: inline-block;
    padding: 3px 10px;
    border-radius: 5px;
    margin-bottom: 15px;
    font-weight: bold;
}

.example-content-sky p {
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.example-content-sky ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.example-content-sky li {
    font-size: 15px;
    color: #555;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
}

.example-content-sky li i {
    color: #2dcc70; /* 緑のチェックマーク */
    margin-right: 8px;
    font-size: 1.1em;
}

/* ============================ */
/* レスポンシブ対応 (既存の@mediaブロックに追加) */
/* ============================ */

@media (max-width: 992px) {
    .example-grid-sky {
        flex-direction: column;
        align-items: center;
    }
    .example-card-sky {
        max-width: 100%; /* スマホでは全幅に */
        flex: 1 1 100%;
    }
}

@media (max-width: 576px) {
    .example-content-sky h3 {
        font-size: 20px;
    }
    .example-card-sky img {
        height: 200px; /* スマホでの画像高さを調整 */
    }
    .example-content-sky p,
    .example-content-sky li {
        font-size: 14px;
    }
}

/* --- スカイボックス詳細セクション --- */
.detail-block-sky {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 70px;
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.detail-block-sky.reverse {
    flex-direction: row-reverse; /* 画像とテキストを交互に配置 */
}

.detail-block-sky img {
    flex-shrink: 0;
    width: 45%; /* 画像の幅 */
    height: auto;
    border-radius: 8px;
    object-fit: cover;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.detail-content-sky {
    flex-grow: 1;
}

.detail-content-sky h3 {
    font-size: 26px;
    color: #004d40;
    margin-top: 0;
    margin-bottom: 20px;
}

.detail-content-sky p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 15px;
}

.detail-content-sky ul {
    list-style: none;
    padding: 0;
    margin: 20px 0 0 0;
}

.detail-content-sky li {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
    color: #333;
}

.detail-content-sky li i {
    color: #ff5722; /* オレンジのアイコン */
    margin-right: 10px;
    font-size: 1.2em;
    flex-shrink: 0;
}

/* 用途グリッド */
.purpose-title-sky {
    font-size: 28px;
    text-align: center;
    color: #004d40;
    margin-top: 60px;
    margin-bottom: 40px;
}

.purpose-title-sky i {
    color: #ff5722;
    margin-right: 10px;
}

.purpose-grid-sky {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); /* 自動調整グリッド */
    gap: 30px;
}

.purpose-card-sky {
    background-color: #e0f7fa; /* 薄い水色 */
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.purpose-card-sky h4 {
    font-size: 20px;
    color: #00796b;
    margin-top: 0;
    font-weight: bold;
    margin-bottom: 20px;
    border-bottom: 2px solid #b2dfdb;
    padding-bottom: 10px;
}

.purpose-card-sky ul {
    list-style: disc; /* 黒い点 */
    padding-left: 20px;
    margin: 0;
}

.purpose-card-sky li {
    font-size: 15px;
    margin-bottom: 8px;
    color: #444;
}


/* ============================ */
/* レスポンシブ対応 (既存の@mediaブロックに追加) */
/* ============================ */

@media (max-width: 992px) {
    .detail-block-sky,
    .detail-block-sky.reverse {
        flex-direction: column; /* カラム表示に変更 */
        text-align: center;
        padding: 20px !important;
        /* border-radius: 0 !important; */
        gap: 0 !important;
        /* border-radius: 0; */
        margin-bottom: 0px;
    }
    .detail-block-sky img {
        width: 80%; /* 画像の幅を広げる */
        margin-bottom: 30px;
    }
    .detail-content-sky {
        text-align: left; /* テキストは左寄せに戻す */
    }
    .purpose-title-sky {
        font-size: 24px;
        margin-bottom: 15px;
    }
}

@media (max-width: 576px) {
    .detail-block-sky img {
        width: 100%;
        border-radius: 0;
    }
    .detail-content-sky h3 {
        font-size: 22px;
    }
    .purpose-grid-sky {
        grid-template-columns: 1fr; /* スマホでは1列表示 */
    }
    .purpose-card-sky h4 {
        font-size: 18px;
    }
}

/* アニメーション対象への追加 (既存のJSスクリプトのセレクタにも追加済み) */
.fade-in,
.problem-card-sky,
.merit-item-sky,
.demand-card-sky,
.example-card-sky,
.detail-block-sky, /* ここに追加 */
.purpose-card-sky /* ここに追加 */
{ 
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease-out var(--animation-delay, 0s), 
                transform 0.4s ease-out var(--animation-delay, 0s);
}

.fade-in.visible,
.problem-card-sky.visible,
.merit-item-sky.visible,
.demand-card-sky.visible,
.example-card-sky.visible,
.detail-block-sky.visible, /* ここに追加 */
.purpose-card-sky.visible /* ここに追加 */
{ 
    opacity: 1;
    transform: translateY(0);
}

#skybox-detail {
    padding: 80px 0 50px 0;
}

#problem-sky {
    padding: 80px 0 50px 0;
}

#area-demand {
    padding: 80px 0 50px 0;
}

@media screen and (max-width: 768px) {
    #skybox-detail {
        padding: 50px 0 50px 0;
    }

    #problem-sky {
        padding: 50px 0 50px 0;
    }
    
    #area-demand {
        padding: 50px 0 50px 0;
    }

    .section-title-sky {
        font-size: 28px;
        text-align: center;
        margin-bottom: 20px;
    }

    .lead-text {
        font-size: 18px;
        margin-bottom: 40px;
    }

    .detail-block-sky {
        gap: 40px;
        margin-bottom: 70px;
        padding: 30px;
        border-radius: 10px;
    }

    .merit-item-sky {
        gap: 0px;
        margin-bottom: 60px;
        padding: 35px;
        border-radius: 10px;
    }
}