/*調整用*/

.migration ul:not([class]) li {
    position: relative;
    padding-left: 1.5em; /* アイコン分の余白 */
    margin-bottom: 0.8em;
    line-height: 1.6;
}

    .migration ul:not([class]) li::before {
        content: "";
        position: absolute;
        left: 0;
        top: 0.15em; /* テキストの中心に合わせる微調整 */
        width: 1.4em;
        height: 1.4em;
        /* ご提示のSVGを埋め込み */
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 -960 960 960' fill='%23D77619'%3E%3Cpath d='M400-280v-400l200 200-200 200Z'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: center;
        background-size: contain;
    }