* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    line-height: 1.8;
    color: #333;
    background-color: #fff;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

header {
    margin-bottom: 50px;
    border-bottom: 2px solid #333;
    padding-bottom: 20px;
}

header h1 {
    font-size: 2.5em;
    font-weight: bold;
    color: #000;
}

main {
    margin-top: 40px;
}

section {
    margin-bottom: 60px;
}

section h2 {
    font-size: 1.8em;
    font-weight: bold;
    margin-bottom: 25px;
    margin-top: 40px;
    color: #000;
    padding-bottom: 10px;
    border-bottom: 1px solid #ddd;
    position: relative;
}

section.intro h2 {
    margin-top: 0;
}

section h2::before {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 60px;
    height: 2px;
    background-color: #333;
}

section p {
    margin-bottom: 20px;
    font-size: 1em;
    line-height: 1.9;
}

section ul {
    margin: 20px 0 20px 30px;
    list-style-type: disc;
}

section ul li {
    margin-bottom: 10px;
    line-height: 1.8;
}

section.room {
    padding-top: 20px;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .container {
        padding: 20px 15px;
    }

    header h1 {
        font-size: 2em;
    }

    section h2 {
        font-size: 1.5em;
    }

    section p {
        font-size: 0.95em;
    }
}