main.search_v4 div.box_search > div.search_wrap > div.search {
    display: flex;
    width: 100%;
}

main.search_v4 div.box_search div.search > input[type="search"] {
    flex: 1 1 auto;
    width: auto;
    min-width: 0;
}

main.search_v4 div.box_search div.search > button.btn_search {
    flex: 0 0 48px;
    width: 48px;
    height: 48px;
}

main.search_v4 div.box_search div.search > button.btn_search_extended {
    flex: 0 0 120px;
    width: 120px;
    height: 48px;
    margin-left: 8px;
    background: #00A85D;
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
}

main.search_v4 .search_v4_empty {
    width: 100%;
    box-sizing: border-box;
    padding: 48px 16px;
    color: #666;
    line-height: 24px;
    text-align: center;
}

main.search_v4 .search_v4_empty {
    margin-top: 32px;
    border: 1px solid #e5e5e5;
    background: #fafafa;
}

main.search_v4 .search_v4_empty[hidden] {
    display: none;
}

main.search_v4 .search_v4_empty.is_loading {
    border: 0;
    background: transparent;
}

main.search_v4 .search_v4_empty.is_error {
    color: #555;
    background: #fff;
}

@media (max-width: 768px) {
    main.search_v4 div.box_search div.search > button.btn_search_extended {
        flex-basis: 88px;
        width: 88px;
        font-size: 14px;
    }
}