body {
    font-family: 'Segoe UI', 'Meiryo', sans-serif;
    background: #f7f9fb;
    color: #222;
    margin: 0;
    padding: 0;
}

header {
    background: linear-gradient(90deg, #4f8cff 0%, #6ad7ff 100%);
    color: #fff;
    padding: 2rem 0 1rem 0;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
    letter-spacing: 2px;
}

header p {
    margin: 0.5rem 0 0 0;
    font-size: 1.2rem;
}

main {
    max-width: 900px;
    margin: 2rem auto;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.07);
    padding: 2rem;
}

section {
    margin-bottom: 2.5rem;
}

h2 {
    color: #4f8cff;
    border-left: 5px solid #4f8cff;
    padding-left: 0.5em;
    margin-bottom: 1em;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1em;
    background: #f4f8ff;
    border-radius: 8px;
    overflow: hidden;
}

th, td {
    padding: 0.9em 0.7em;
    text-align: center;
}

th {
    background: #e3f0ff;
    color: #2a4d7a;
    font-weight: 600;
}

tr:nth-child(even) {
    background: #fafdff;
}

tr:hover {
    background: #eaf6ff;
}

ul, li {
    margin: 0;
    padding: 0;
    list-style: none;
}

ul {
    margin-left: 1.2em;
    margin-bottom: 1em;
}

ul > li {
    margin-bottom: 0.5em;
    font-size: 1em;
    text-align: left;
}

footer {
    text-align: center;
    color: #888;
    padding: 1.5rem 0 1rem 0;
    font-size: 0.95rem;
    background: #f4f8ff;
    border-top: 1px solid #e3f0ff;
    margin-top: 2rem;
}

a {
    color: #4f8cff;
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: #2a4d7a;
}

@media (max-width: 600px) {
    main {
        padding: 1rem;
    }
    table, th, td {
        font-size: 0.95em;
    }
}