  input[type="text"] {
            outline: solid 0.2px #414141;
            border-radius: 30px;
            color: #ffffff;
            background-color: #626262;
            padding: 10px;
            height: 20px;
            width: 225px;
            font-size: 15px;
            border: none;
        }

        body {
            font-family: 'Roboto', sans-serif;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            background-color: #f0f0f0;
        }

        .swiper {
            width: 100%;
            max-width: 600px;
        }

        .swiper-slide {
            margin: 20px 0;
        }

        .highlight-box {
            border: 2px solid #000;
            padding: 10px;
            margin: 10px 0;
            border-radius: 25px;
            background-color: #21242A;
        }

        .highlight-box h1 {
            color: #ffffff;
            font-size: 24px;
            text-align: center;
            font-family: sans-serif;
        }

        .highlight-box p {
            color: #fff;
            font-size: 16px;
            line-height: 1.5;
            margin: 0;
        }

        .input-container {
            display: flex;
            align-items: center;
        }

        .input-container input[type="text"] {
            margin-right: 10px;
        }

        .highlight-box .signin {
            display: block;
            margin-top: 10px;
            padding: 10px 20px;
              margin: 25px auto 0;
            width: 300px;
            font-family: sans-serif;
            font-size: 16px;
            color: #002D64;
            background-color: #AAC7FF;
            border: none;
            border-radius: 25px;
            cursor: pointer;
            text-align: center;
        }

        .highlight-box .signin:hover {
            background-color: #82ACFF;
        }

        /* 共通のalert-buttonスタイル */
        .alert-button {
            padding: 10px 20px;
            font-family: sans-serif;
            font-size: 16px;
            color: #002D64;
            background-color: #AAC7FF;
            width: 130px;
            border: none;
            border-radius: 25px;
            cursor: pointer;
            text-align: center;
        }

        .alert-button:hover {
            background-color: #82ACFF;
        }

        /* 特定のスタイルを適用するためのクラス */
        .alert-button1 {
            width: 150px;
            background-color: #AAC7FF;
                border: none;
            font-family: sans-serif;
            font-size: 16px;
            color: #002D64;
               border-radius: 25px;
            height: 48px;
        }

        .alert-button2 {
            width: 230px;
            background-color: #AAC7FF;
                border: none;
            font-family: sans-serif;
            font-size: 16px;
            color: #002D64;
               border-radius: 25px;
        }

        .alert-button-container {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin-top: 20px;
        }

        .swiper-pagination-bullet {
            background: #000;
        }

        .swiper-pagination-bullet-active {
            background: #fff;
        }