body {
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    line-height: 1.8;
    margin: 0;
    padding: 0;
    background-color: #f0f2f5;
    color: #333;
}
.container {
    max-width: 900px;
    margin: auto;
    padding: 0 20px;
}
header {
    background: #fff;
    color: #333;
    padding: 2rem 0;
    text-align: center;
    border-bottom: 1px solid #eee;
}
header h1 {
    margin: 0;
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: #2c3e50;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}
main {
    padding: 2rem 0;
}
section {
    background: #fff;
    margin-bottom: 25px;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}
h2 {
    font-size: 1.6rem;
    color: #333;
    border-bottom: 2px solid #4a90e2;
    padding-bottom: 10px;
    margin-top: 0;
}
ul {
    list-style: none;
    padding: 0;
}
ul li {
    background: #f0f2f5;
    margin-bottom: 10px;
    padding: 15px;
    border-left: 4px solid #4a90e2;
    border-radius: 4px;
}
.contact-info a {
    color: #4a90e2;
    text-decoration: none;
    font-weight: bold;
}
.contact-info a:hover {
    text-decoration: underline;
}
footer {
    text-align: center;
    padding: 25px;
    margin-top: 20px;
    background: #fff;
    color: #666;
    border-top: 1px solid #eee;
    font-size: 0.9rem;
}