@media (max-width: 1100px) {
    /* top banner */
    .top_bana .banner_text p {
        font-size: 1.5rem;
        color: var(--main-color);
    }
    .top_bana .banner_text .top_bana_tel {
        font-size: 2.8rem;
    }
    .top_bana .banner_text .top_bana_grid {
        display: grid;
        grid-template-columns: repeat(3, auto);
        justify-content: center;
        gap: 0.5rem;
        margin-top: 0.5rem;
    }
    .top_bana .banner_text .top_bana_grid a {
        font-size: 0.7rem;
        color: var(--main-color);
        background-color: white;
        padding: 0.4rem 0.5rem;
        box-shadow: 1px 1px 3px var(--main-color);
    }
    /* top banner */
    .br_1100 {
        display: block;
    }
    .br_1100_none {
        display: none;
    }
    .body_top_text {
        padding: 0 0.5rem;
    }
}

@media (max-width: 1000px) {
    #body_top .container-cloud {
        position: relative;
        display: flex;
    }
    .grid_col_5 {
        grid-template-columns: repeat(1, 1fr);
        gap: 1rem;
    }
    .grid_col_4 {
        grid-template-columns: repeat(1, 1fr);
        gap: 1rem;
    }
    .w_100_clouds {
        width: fit-content;
    }
    #fooder .footer_banner a {
        font-size: 2rem;
    }
    #fooder .footer_banner a img {
        width: 3rem;
        margin: 0 0.5rem;
    }
    .br_1000 {
        display: block;
    }
    .m_t_6 {
        margin-top: 4rem;
    }
    .m_b_7 {
        margin-bottom: 5rem;
    }
    .p_t_6 {
        padding-top: 4rem;
    }
}

@media (max-width: 900px) {
    /* top banner */
    .top_bana .banner_text p {
        font-size: 1.5rem;
        color: var(--main-color);
    }
    .top_bana .banner_text .top_bana_tel {
        font-size: 1.8rem;
    }
    .top_bana .banner_text .top_bana_grid {
        display: grid;
        grid-template-columns: repeat(1, auto);
        justify-content: center;
        text-align: center;
        gap: 0.5rem;
        margin-top: 0.5rem;
    }
    .top_bana .banner_text .top_bana_grid a {
        font-size: 1rem;
        color: var(--main-color);
        background-color: white;
        padding: 0.4rem 0.5rem;
        box-shadow: 1px 1px 3px var(--main-color);
    }
    /* top banner */
    .fs_1_4 {
        font-size: 1.2rem;
    }
    .br_900 {
        display: block;
    }
    #fooder .footer_banner {
        background: var(--main-color);
        display: grid;
        grid-template-columns: auto auto;
        justify-content: center;
        gap: 2rem;
        padding: 1.5rem 0;
    }
    #fooder .footer_banner a {
        font-size: 1.8rem;
    }
    #fooder .footer_banner a img {
        width: 3rem;
    }
}

@media (max-width: 800px) {
    .flex-direction_column {
        flex-direction: column;
    }
    .txt_center_800 {
        text-align: center;
        margin-bottom: 0.9rem;
    }
    #body_top .f_flex .text_2 {
        padding-top: 0.9rem;
        padding-left: 0.9rem;
    }
    #body_top .f_flex .text_poz {
        position: relative;
        top: 0;
        right: 0%;
        text-align: center;
    }
}

@media only screen and (max-width: 768px) {
    .top_bana {
        display: none;
    }
    .top_d {
        display: block;
    }
    /* header css and hamburger menu small size*/
    .header {
        position: sticky;
        top: 0;
        z-index: 888;
    }
    .nav-menu {
        position: absolute;
        left: -100%;
        top: 3.9rem;
        flex-direction: column;
        background-color: #fff;
        width: 100%;
        border-radius: 10px;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        z-index: 999;
    }
    .nav-menu.active {
        left: 0;
    }
    .nav-item {
        margin: 1.5rem 0;
    }
    .hamburger {
        display: block;
        cursor: pointer;
    }
    .navbar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 1rem 1.5rem;
        z-index: 999;
    }
    .navbar ul .top_bana_grid2 {
        display: grid;
        gap: 1rem;
        margin-bottom: 1rem;
    }
    .navbar ul .top_bana_grid2 a {
        background: var(--main-color);
        color: var(--light-color);
        padding: 0.5rem;
    }
    .navbar ul li .nav-link {
        color: var(--main-color);
    }
    /* header css and hamburger menu small size*/
    .br_768 {
        display: block;
    }
    .fs_2 {
        font-size: 1.5rem;
    }
    .grid_col_b_a {
        grid-template-columns: auto 14rem auto;
    }
    #body_top .body_top_title {
        text-align: center;
    }
    #body_top .body_top_title .inu_icon {
        width: 1.5rem;
    }
    #body_top .body_top_title p {
        font-size: 1.3rem;
        margin-bottom: 1rem;
    }
    #body_top .body_top_title .sora {
        font-size: 1.8rem;
    }
    #body_top .container-cloud .cloud .cloud_w {
        width: 110px;
        text-align: center;
    }
    #body_top .container-cloud .cloud .cloud_text p {
        font-size: 11px;
    }
    .body_top_text {
        width: 100%;
    }
    #body_top .social_icon {
        width: 5rem;
        margin: 0 2rem;
    }
    .flex-direction_column {
        flex-direction: column;
    }
    .mt_1rem {
        margin-top: 1rem;
    }
    #fooder {
        margin-top: 1rem;
        font-size: 0;
    }
    #fooder .footer_banner {
        grid-template-columns: auto;
        gap: 1rem;
        padding: 1.5rem 0;
    }
    /* utility */
    // .p_t_6 {
    //     padding-top: 4rem;
    // }
    .m_t_6 {
        margin-top: 2rem;
    }
    .m_t_2 {
        margin-top: 1rem;
    }
    .m_b_7 {
        margin-bottom: 2rem;
    }
    .m_b_6 {
        margin-bottom: 2rem;
    }
    .m_b_5 {
        margin-bottom: 2rem;
    }
    .m_b_4 {
        margin-bottom: 1rem;
    }
    .m_y-3 {
        margin: 1rem 0;
    }
    .w_95 {
        width: 95%;
    }
    .w_100_sp {
        width: 100%;
    }
    .m_b_0 {
        margin-bottom: 0;
    }
    .m_t_0 {
        margin-top: 0;
    }
    .fs_1_2 {
        font-size: 1rem;
    }
    /* utility */
}

@media only screen and (max-width: 450px) {
    .txt_center_450 {
        text-align: center;
    }
    .fs_sp_p {
        font-size: 1rem;
    }
    .d_none_sp {
        display: none;
    }
}