body,
        html {
            height: 100%;
            margin: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: #fff;
            font-family: Verdana, sans-serif;
        }

        .container {
            display: flex;
            align-items: flex-start;
            gap: 20px;
        }

        .side-title {
            font-family: Georgia, serif;
            font-size: 40px;
            font-style: italic;
            line-height: 0.8;
            color: #000;
            writing-mode: vertical-rl;
            transform: rotate(180deg);
            border-left: 1px solid #CC3333;
            padding-bottom: 10px;
        }

        .content-box {
            max-width: 400px;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }


        .contact-list {
            text-align: left;
            background: #f6efd2;
            padding: 15px;
            border: 1px solid #e9e9e9;
            font-size: 11px;
            line-height: 1.8;
        }


        .channels-list {
            text-align: left;
            background: #f6efd2;
            padding: 12px 15px;
            /* Отличается типом рамки */
            border: 1px dashed #d1ba8a;
            font-size: 11px;
            line-height: 1.9;
        }

        .label {
            color: #888;
            margin-right: 5px;
        }

        a {
            color: #330;
            text-decoration: none;
            border-bottom: 1px dotted #330;
        }

        a:hover {
            color: #699;
            border-bottom-color: #699;
        }

        .back-link {
            margin-top: 5px;
            display: block;
            font-size: 10px;
            text-align: right;
        }

        @media (max-width: 600px) {
            .container {
                flex-direction: column;
                align-items: center;
                width: 100%;
                padding: 20px;
                box-sizing: border-box;
            }

            .side-title {
                writing-mode: horizontal-tb;
                transform: none;
                border-left: none;
                border-bottom: 1px solid #CC3333;
                padding-bottom: 5px;
                margin-bottom: 20px;
                width: 100%;
                text-align: center;
                line-height: 1;
            }

            .content-box {
                width: 100%;
                max-width: none;
            }
        }