@charset "utf-8";

/*========================== 
common 
==========================*/
:root {
    --darkblue: #012F7B;
    --rightblue: #3DA9FC;
    --skyblue: #EEF8FF;
    --black: #46484C;
    --rightgray: #F6F6F6;
    --beige: #F7F6F3;
    --white: #fff;
    --link-hover: #F6AD55;
    --link-active: #EAA858;
    --link-hover2: #D5EEFF;
    --contentPadding: 89.3%;
}

html {
    font-size: 62.5%;
    scroll-behavior: smooth;
}

body {
    font-family: fot-cezanne-pron, 'Noto Sans JP', Arial, sans-serif;
    font-style: normal;
    font-weight: 500;
    font-size: 1.6rem;
    color: var(--black);
    background-color: #fff;
}

html,
body {
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
}

.section_ttl {
    color: var(--rightblue);
    text-align: center;
    font-family: fot-cezanne-pron, 'Noto Sans JP', Arial, sans-serif;
    font-style: normal;
    font-weight: 500;
    margin-top: 64px;
    font-size: 2rem;
}

.en {
    color: var(--darkblue);
    font-size: 3.2rem;
    line-height: 1.6;
    font-style: normal;
    font-weight: 400;
}

.subTtl {
    color: #FFF;
    text-align: center;
    font-weight: 500;
    line-height: 1.6;
}

.p {
    color: var(--black);
    font-family: "Noto Sans JP";
    font-size: 1.8rem;
    font-style: normal;
    font-weight: 400;
    line-height: 1.6;
}

@media (min-width: 768px) {
    .section_ttl {
        font-size: 2.1rem;
        margin-top: 96px;
    }

    .en {
        font-size: 5.6rem;
    }

    .subttl {
        font-size: 2.4rem;
    }
}

/* .nav */
.header {
    background-image: url(../img/bg_dairiseki_skyblue.png);
}

.header_wrap {
    background-image: url(../img/bg_dairiseki_skyblue.png);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

/* ===== ヘッダー ===== */
.header_area {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 18px 5.6%;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: transparent;
    z-index: 200;
    /* navより下に設定（navは1200） */
    isolation: isolate;
}

/* 背景は ::before。既定=見える */
.header_area::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url(../img/bg_dairiseki_skyblue.png);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    opacity: 1;
    transition: opacity .5s ease;
    z-index: 0;
    pointer-events: none;
}

.header_area>* {
    position: relative;
    z-index: 1;
}

.header_logo_txt {
    color: var(--darkblue);
    font-family: fot-cezanne-pron, 'Noto Sans JP', Arial, sans-serif;
    font-style: normal;
    font-weight: 500;
    font-weight: 400;
    line-height: 1.6;
    font-size: 1.8rem;
    opacity: 1;
    transition: opacity .5s ease;
}

/* ハンバーガーは常時右上（SP/タブレット） */
.btn_hamburger {
    position: fixed;
    top: 20px;
    right: 5.6%;
    z-index: 1201;
    pointer-events: auto;
}

/* --- ホームだけ：初期非表示／スクロール後に表示 --- */
.is-home .header_area::before {
    opacity: 0;
}

.is-home .header_logo_txt {
    opacity: 0;
}

.is-home.after-hero .header_area::before {
    opacity: 1;
}

.is-home.after-hero .header_logo_txt {
    opacity: 1;
}

/* ===== ハンバーガーUI ===== */
.drawer_hidden {
    display: none;
}

.drawer_open {
    display: flex;
    width: 22px;
    height: 20.533px;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 1300;
    cursor: pointer;
}

.drawer_open span,
.drawer_open span:before,
.drawer_open span:after {
    content: '';
    display: block;
    height: 1px;
    width: 22px;
    border-radius: 3px;
    background: #012F7B;
    transition: 0.5s;
    position: absolute;
}

.drawer_open span:before {
    bottom: 8px;
}

.drawer_open span:after {
    top: 8px;
}

/* メニュー（オーバーレイ） */
.nav {
    box-shadow: 4px 0 8px rgba(70, 72, 76, 0.2);
    background-image: url(../img/bg_dairiseki_skyblue.png);
    background-repeat: no-repeat;
    background-size: cover;
    position: fixed;
    padding-bottom: 42px;
    inset: 0;
    /* 画面フル */
    z-index: 1200;
    /* ← ヘッダーより上に */
    transform: translateX(100%);
    /* 右へ退避 */
    transition: transform .80s ease;
    overflow-y: auto;
    /* navだけスクロール */
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

.header:has(#drawer_input:checked) .nav {
    transform: translateX(0);
}

body:has(#drawer_input:checked) {
    overflow: hidden;
}

.header:has(#drawer_input:checked)~.main,
.header:has(#drawer_input:checked)~.footer {
    overscroll-behavior: contain;
}

.header:has(#drawer_input:checked) .header_area {
    pointer-events: none;
}

.header:has(#drawer_input:checked) .btn_hamburger,
.header:has(#drawer_input:checked) .drawer_open {
    pointer-events: auto;
}

.nav_top {
    margin: 49px auto 0;
    padding-inline: 16px;
    inline-size: fit-content;
    max-inline-size: 100%;
    text-align: center;
}

.nav_logo_blue {
    display: block;
    margin: 0 auto;
    width: 95px;
    height: 74px;
    inline-size: clamp(48px, 24vw, 95px);
    block-size: auto;
}

.nav_logo_txt {
    color: var(--darkblue);
    text-align: center;
    font-family: fot-cezanne-pron, 'Noto Sans JP', Arial, sans-serif;
    font-style: normal;
    font-weight: 500;
    font-size: clamp(16px, 6vw, 22px);
    line-height: normal;
    margin-top: 20px;
    white-space: nowrap;
}

.nav_content {
    margin-top: 32px;
}

.nav_list {
    display: block;
    margin: 32px 0 0 23.4%;
}

.menu_list {
    color: var(--darkblue);
    font-family: 'Noto Sans JP';
    font-size: 1.6rem;
    font-style: normal;
    font-weight: 400;
    line-height: 1.6;
    margin-top: 16px;
}

.menu_list a {
    display: block;
    text-decoration: none;
}

.nav li a:hover {
    color: var(--link-hover);
}

.menu_list_btn {
    padding: 6px 1em;
    margin: 0 22.6%;
    background-color: var(--white);
    border: 1px solid var(--darkblue);
    border-radius: 5px;
    display: inline-flex;
    align-items: center;
    color: var(--darkblue);
    font-family: fot-cezanne-pron, 'Noto Sans JP', Arial, sans-serif;
    font-style: normal;
    font-weight: 500;
    line-height: 1.6;
    margin-top: 24px;
    font-size: 1.6rem;
    font-weight: 400;
    min-width: max-content;
}

/* .menu_list_btn::before {
    content: "";
    display: inline-block;
    color: var(--darkblue);
    width: 6px;
    height: 6px;
    border-right: 1px solid var(--darkblue);
    border-bottom: 1px solid var(--darkblue);
    transform: rotate(-45deg);
    transform-origin: center;
} */

.menu_list_btn:hover {
    background-color: var(--link-hover);
    border: 1px solid var(--white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: .2s;
    color: var(--white);
}

/* .menu_list_btn:hover::before {
    border-color: var(--white);
    transition: .2s;
} */

.menu_list_btn:active {
    background-color: var(--link-active);
}

.nav_info {
    margin-left: 22.6%;
    margin-top: 32px;
}

.nav_banner {
    background-color: var(--skyblue);
    padding: 12px 19px;
    margin: 24px 18.4% 0;
    box-shadow: 2px 2px 4px 0 rgba(0, 0, 0, 0.25);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav_btn_txt {
    color: var(--darkblue);
    font-family: "Noto Sans JP";
    font-size: 1.4rem;
    font-style: normal;
    font-weight: 400;
    line-height: 1.6;
}

.nav_btn_img {
    width: 52px;
    height: 52px;
    flex-shrink: 0;
}

.nav_banner:hover,
.nav_banner:active {
    background-color: var(--link-hover2);
    transition: .2s;
    border-radius: 50px;
}

/* ハンバーガー × 変形 */
#drawer_input:checked~.drawer_open span {
    background: rgba(255, 255, 255, 0);
}

#drawer_input:checked~.drawer_open span::before {
    bottom: 0;
    transform: rotate(45deg);
}

#drawer_input:checked~.drawer_open span::after {
    top: 0;
    transform: rotate(-45deg);
}

/* ==========================
   PCレイアウト（左サイド固定）
   1025px以上
========================== */
@media (min-width: 1025px) {

    .btn_hamburger,
    .drawer_open,
    #drawer_input {
        display: none !important;
    }

    .header_area {
        display: none;
    }

    /* PCはサイドバーのみ */

    .nav {
        position: fixed !important;
        outline: solid 2px var(--darkblue);
        outline-offset: -12px;
        inset: auto;
        padding-bottom: 0;
        top: 0;
        left: 0;
        bottom: 0;
        width: 300px;
        transform: none !important;
        transition: none !important;
        z-index: 1200;
        /* PCでも最前面（ただし重なりは気にならない） */
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    body:has(#drawer_input:checked) {
        overflow: auto !important;
    }

    .header:has(#drawer_input:checked)~.main,
    .header:has(#drawer_input:checked)~.footer {
        overscroll-behavior: auto !important;
    }

    body {
        margin-left: 300px;
    }

    .section_ttl {
        font-size: 2.4rem;
    }

    .en {
        font-size: 6.2rem;
    }

    .subttl {
        font-size: 2.8rem;
    }

    .p {
        font-size: 2rem;
    }

    .main_img_content,
    .main {
        padding-left: 0;
    }

    .nav_top {
        margin: 60px auto 0;
        padding-inline: 24.3%;
    }

    .nav_logo_txt {
        color: var(--darkblue);
        text-align: center;
        font-family: fot-cezanne-pron, 'Noto Sans JP', Arial, sans-serif;
        font-style: normal;
        font-weight: 500;
        font-size: 2.2rem;
        line-height: normal;
    }

    .nav_content {
        margin-top: 24px;
    }

    .nav_list {
        padding-inline: 49px;
        margin: 0 auto;
    }

    .menu_list {
        margin-top: 16px;
    }

    .menu_list:first-of-type {
        margin-top: 42px;
    }

    .menu_list a {
        display: block;
        white-space: nowrap;
    }

    .menu_list_btn {
        margin: 32px 48px 0;
        width: auto;
    }

    .nav_info {
        margin-left: 48px;
        margin-top: 24px;
    }

    .nav_banner {
        margin: 32px 31.5px;
    }
}


/* product_btn */
.normal_btn {
    display: block;
    background-color: #fff;
    border-radius: 5px;
    border: 2px solid var(--darkblue);
    padding: 14px 0 13px;
    margin: 96px auto 0;
    text-align: center;
    color: var(--darkblue);
    text-align: center;
    font-family: "Noto Sans JP";
    font-size: 2rem;
    font-style: normal;
    font-weight: 400;
    line-height: 1.6;
    width: 335px;
}

.normal_btn::before {
    content: "";
    display: inline-block;
    color: var(--darkblue);
    width: 12px;
    height: 12px;
    border-right: 1px solid var(--darkblue);
    border-bottom: 1px solid var(--darkblue);
    transform: rotate(-45deg);
    transform-origin: center;
    margin-right: 21px;
}

.normal_btn:hover {
    background-color: var(--link-hover);
    border: 2px solid var(--white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: .2s;
    color: var(--white);
}

.normal_btn:hover::before {
    border-color: var(--white);
    transition: .2s;
}

.normal_btn:active {
    background-color: var(--link-active);
}


@media (max-width: 370px) {
    .normal_btn {
        width: calc(100% - 10.6%);
        margin-inline: 5.3%;
    }
}

@media (min-width: 768px) {
    .normal_btn {
        margin: 96px auto 0;
    }
}

/* footer */
.footer {
    position: relative;
    background: var(--skyblue);
    padding: 30px 0 24px;
}

.footer::before {
    content: "";
    position: absolute;
    left: 0;
    top: -30px;
    width: 100%;
    height: 30px;
    background: radial-gradient(circle at 30px 30px, var(--skyblue) 30px, transparent 31px) repeat-x;
    background-size: 60px 60px;
    pointer-events: none;
}

.footer_ttl {
    color: var(--darkblue);
    text-align: center;
    font-family: fot-cezanne-pron, 'Noto Sans JP', Arial, sans-serif;
    font-style: normal;
    font-weight: 500;
    font-size: 3.2rem;
    line-height: normal;
}

.footer_sns {
    display: flex;
    gap: 14.7%;
    align-items: center;
    justify-content: center;
    margin: 24px 25% 0;
}

.footer_sns a {
    flex-shrink: 0;
    aspect-ratio: 1/1;
    width: 23%;
}

.footer_btn {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

/* .snsBtn_bg {
    background-color: var(--darkblue);
    border-radius: 50%;
    width: 23%;
} */

/* .footer_btn_store {
    flex-shrink: 0;
    aspect-ratio: 1/1;
    width: 100%;
    height: auto;
    padding: 26.3% 26.3% 24%;
}

.footer_btn_insta {
    flex-shrink: 0;
    aspect-ratio: 1/1;
    width: 100%;
    height: auto;
    padding: 26% 28.95% 26.3%;
}

.footer_btn_line {
    flex-shrink: 0;
    aspect-ratio: 1/1;
    width: 100%;
    height: auto;
    padding: 30% 27.5% 26.6% 26.2%;
} */

.top {
    display: none;
}

.top_lesson {
    display: none;
}

@media (min-width: 768px) {
    .footer_ttl {
        font-size: 4.2rem;
    }

    .footer_sns {
        display: flex;
        gap: 14.7%;
        margin: 72px 40.2% 0;
    }

    .footer_sns a {
        width: 23.4%;
    }

    .top {
        display: block;
        background-image: url(../img/bg_dairiseki_skyblue.png);
        padding: 64px 0;
        text-align: center;
    }

    .top_lesson {
        display: block;
        background-image: url(../img/bg_dairiseki_beige.png);
        padding: 64px 0;
        text-align: center;
    }

    .top p,
    .top_lesson p {
        color: var(--darkblue);
        text-align: center;
        font-family: fot-cezanne-pron, 'Noto Sans JP', Arial, sans-serif;
        font-style: normal;
        font-weight: 500;
        font-size: 4.2rem;
        line-height: normal;
    }
}

/* 注意事項 */
.caution_txtarea {
    margin: 46px 5.3% 0;
    padding: 27px 9.4%;
    background-color: var(--rightgray);
    border: 1px solid var(--darkblue);
}

.caution_ttl {
    color: var(--darkblue);
    font-family: fot-cezanne-pron, 'Noto Sans JP', Arial, sans-serif;
    font-style: normal;
    font-weight: 500;
    font-size: 2rem;
    line-height: 1.6;
}

.caution_txt {
    color: var(--black);
    font-family: "Noto Sans JP";
    font-size: 1.6rem;
    font-style: normal;
    font-weight: 400;
    line-height: 1.6;
    margin-top: 12px;
}

.copy {
    color: var(--darkblue);
    text-align: center;
    font-family: "Noto Sans JP";
    font-size: 1.2rem;
    font-style: normal;
    font-weight: 400;
    line-height: 1.6;
    margin-top: 54px;
}

@media (min-width: 768px) {
    .caution_txtarea {
        margin: 116px 4.2%;
        padding: 27px 3.5%;
    }

    .caution_ttl {
        font-size: 2.4rem;
    }

    .caution_txt {
        font-size: 1.8rem;
        margin-top: 24px;
    }

    .copy {
        margin-top: 42px;
    }
}

.fadeIn {
    opacity: 0;
    transition: opacity 0.6s ease-in;
}

.fadeIn.show {
    opacity: 1;
}

.fadeInSlow {
    opacity: 0;
    transition: opacity 1.2s ease-in;
}

.fadeInSlow.show {
    opacity: 1;
}

.fadeInSlow1 {
    opacity: 0;
    transition: opacity 1.6s ease-in;
}

.fadeInSlow1.show {
    opacity: 1;
}

/* ▼ PAGE TOP */
.page-top {
    position: fixed;
    right: 20px;
    bottom: -160px;
    width: 160px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    border: 0;
    border-radius: 100px 100px 0 0;
    background: var(--rightblue, #3DA9FC);
    color: #fff;
    letter-spacing: .08em;
    font-weight: 700;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
    transition: bottom .25s ease, opacity .25s ease, visibility .25s ease;
}

.page-top i {
    position: absolute;
    top: 14px;
    font-size: 28px;
    line-height: 1;
}

.page-top span {
    position: absolute;
    bottom: 12px;
    margin: 0;
    font-size: 14px;
}

.page-top.is-active {
    bottom: 0;
    opacity: 1;
    visibility: visible;
}

.page-top:hover {
    filter: brightness(1.05);
    transform: translateY(-2px);
}

@media (prefers-reduced-motion: reduce) {
    .page-top {
        transition: none;
    }
}

@media (max-width: 767px) {
    .page-top {
        width: 120px;
        height: 60px;
        border-radius: 80px 80px 0 0;
        /* 半径も縮める */
        right: 12px;
        /* 少し内側に寄せるなら */
    }

    .page-top i {
        top: 10px;
        font-size: 22px;
    }

    .page-top span {
        bottom: 8px;
        font-size: 12px;
    }
}