main {
    margin: auto 140px;
    padding-top: 200px;
}

.project-info-block {
    margin-bottom: 30px;
    color: #305662;
    margin-bottom: 72px;
    /* あなたのサイトの落ち着いた青緑 */
}

.project-tech {
    font-size: 14px;
    letter-spacing: 1px;
    margin-bottom: 6px;
    opacity: 0.8;
}

.project-name {
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 1px;
}

.project-detail {
    max-width: 900px;
    margin: 0 auto;
    padding: 120px 20px 80px;
    /* ヘッダー固定分 + 余白 */
}

.project-title-main {
    text-align: center;
    font-size: 28px;
    margin-bottom: 40px;
    color: #305662;
}

.project-hero img {
    width: 100%;
    margin-bottom: 40px;
}

.project-section {
    margin-bottom: 40px;
}

.project-section h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: #305662;
}

.tech-list,
.feature-list {
    padding-left: 20px;
    line-height: 1.8;
}




/* 画像を包む薄いグレーのボックス */
.project-image-frame {
    background-color: #f5f5f5;
    /* 薄いグレー */
    padding: 40px;
    margin-bottom: 60px;

}

/* 画像2枚を縦に並べる */
.project-hero-images {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin: 48px auto;
}

/* ボックス内の画像 */
.project-hero-images img {
    width: 80%;
    margin: auto;
    margin-bottom: 48px;
    object-fit: cover;
    /* box-shadow:
        0 8px 20px rgba(0, 0, 0, 0.08),
        0 0 25px rgba(0, 0, 0, 0.04); */

    box-shadow: 8px 8px 10px rgba(0, 0, 0, 0.30);
}


/* 写真の上にリンクを重ねる */
.project-hero-wrap {
    position: relative;
    margin-bottom: 40px;
    padding-top: px;
}

.project-hero-overlay {
    /* position: absolute;
    top: 20px;
    left: 20px; */
    display: flex;
    gap: 15px;
    z-index: 10;
    margin-bottom: 24px;
}

/* Visit Site / GitHub ボタン */
.hero-btn {
    background-color: rgba(0, 0, 0, 0.75);
    color: #fff;
    padding: 8px 14px;
    text-decoration: none;
    font-size: 12px;
    letter-spacing: 0.5px;
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.hero-btn:hover {
    opacity: 0.7;
    transform: translateY(-2px);
}