body {
    font-family: sans-serif;
    background-color: #f0f0f0;
    line-height: 1.6;
    color: #333;
    max-width: 700px;
    margin: 40px auto;
    padding: 0 20px;
}

h2 {
    text-align: center;
    margin-bottom: 40px;
}

.image-container {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

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

.section-title {
    font-weight: bold;
    text-decoration: underline;
    margin-top: 30px;
    margin-bottom: 10px;
}

p {
    margin-bottom: 16px;
}

.indented {
    margin-left: 2em; /* ← インデントではなくマージン */
}

.footer-nav {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #ccc;
    text-align: center;
    font-size: 14px;
}

.footer-nav a {
    margin: 0 15px;
    text-decoration: none;
    color: #007BFF;
    transition: color 0.3s;
}

.footer-nav a:hover {
    color: #0056b3;
    text-decoration: underline;
}

.kokorozashi{
    font-family: 'Zen Old Mincho', serif;
    font-style: normal;
    font-size: 1.05em;
    color: #000000;
    text-align: center;
    margin: 40px 0 40px;
}

.video-container {
    position: relative;
    width: 100%;
    max-width: 100%;
    padding-top: 56.25%; /* 16:9のアスペクト比（9/16=0.5625） */
    margin: 0 auto;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
}