body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            background-color: #f4f4f9;
            color: #333;
        }

        header {
            background-color: #004080;
            color: #fff;
            padding: 20px 10%;
            text-align: center;
        }

        header h1 {
            margin: 0;
            font-size: 2.5em;
        }

        modoru {
            padding-top: 15px;
            max-width: 800px;
            margin: 20px auto;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        main {
            max-width: 800px;
            margin: 20px auto;
            background: #fff;
            padding: 20px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
            border-radius: 8px;
        }

        .profile-header {
            display: flex;
            align-items: center;
            border-bottom: 2px solid #004080;
            padding-bottom: 15px;
            margin-bottom: 20px;
        }

        .profile-header img {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            margin-right: 20px;
        }

        .profile-header div {
            flex: 1;
        }

        .profile-header h2 {
            margin: 0;
            font-size: 1.8em;
            color: #004080;
        }

        .profile-header p {
            margin: 5px 0;
        }

        section {
            margin-bottom: 20px;
        }

        section h3 {
            margin-bottom: 10px;
            color: #004080;
            font-size: 1.5em;
        }

        section ul {
            list-style-type: none;
            padding: 0;
        }

        section ul li {
            margin-bottom: 5px;
            padding: 5px 10px;
            background: #f0f8ff;
            border-radius: 5px;
        }

        .message {
            font-style: italic;
            background: #eaf4ff;
            padding: 15px;
            border-left: 4px solid #004080;
            border-radius: 5px;
        }
        .sns-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            padding-top: 25px;
            border-top: 1px solid #ddd;
            gap: 10px;
        }

        .sns-links a {
            text-decoration: none;
            color: #004080;
            font-weight: bold;
            flex-basis: calc(20% - 20px);
            text-align: center;
        }

        footer {
            text-align: center;
            padding: 10px;
            background-color: #004080;
            color: white;
            font-size: 0.9em;
        }