:root {
    --ltorange: #f56403;
    --drorange: #f54b00;
    --yellow: rgba(245, 236, 0, 0.65);
    --txt: #383838;
}


/* =========================
   Simple Reset
========================= */

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    font-family: 'M PLUS 1p', 'Helvetica Neue', Arial, sans-serif;
    color: var(--txt);
}

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

p,
h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
}


/* =========================
   UMA → CTA エリア
========================= */

.signup-area,
.info-area,
.review-area,
.message-area {
    width: 100%;
    margin: 0;
    padding: 0;
    text-align: center;
}


/* =========================
   UMA画像
   元画像以上に拡大しない
========================= */
.signup-area>img,
.info-area>img,
.review-area>img,
.message-area>img {
    width: auto;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
    padding: 0;
}


/* =========================
   CTA背景
========================= */

.friend-area {
    position: relative;
    width: fit-content;
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
    overflow: hidden;
}


/* friend.png
   元画像以上に拡大しない
========================= */

.friend-bg {
    width: auto;
    max-width: 100%;
    height: auto;
    margin: 0;
    padding: 0;
}


/* =========================
   LINEボタン
========================= */

.line-btn {
    position: absolute;
    left: 50%;
    bottom: 18%;
    transform: translateX(-50%);
    /* ボタンも元画像以上に拡大しない */
    width: 100%;
    display: block;
    z-index: 10;
    animation: lineFloat 1.4s ease-in-out infinite;
}


.line-btn img {
    width: auto;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}

/* =========================

   注意書き

========================= */

.note-box {
    position: absolute;
    left: 50%;
    bottom: 1%;
    transform: translateX(-50%);
    width: 90%;
    text-align: left;
    z-index: 2;

}

.note-txt {
    margin: 0;
    font-size: 12px;
    font-weight: 500;
    line-height: 1.5;
    color: var(--txt);

}

/* =========================
   LINEボタン 上下アニメーション
========================= */

@keyframes lineFloat {
    0%,
    100% {
        transform: translate(-50%, 0);
    }
    50% {
        transform: translate(-50%, -10px);
    }
}

/* =========================

   メッセージ背景

========================= */

.message-box {
    position: relative;
    width: fit-content;
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
    overflow: hidden;

}

.message-bg {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    margin: 0;
    padding: 0;

}

/* =========================

   メッセージ本文

========================= */

.message-txt {
    position: absolute;
    /* タイトルの下から文章開始 */
    top: 38%;
    left: 50%;
    transform: translateX(-50%);
    width: 84%;
    text-align: left;
    z-index: 2;

}

.message-txt p {
    margin: 0 0 19px;
    font-size: clamp(13px, 3.3vw, 34px);
    font-weight: 600;
    line-height: 1.9;
    letter-spacing: 0.02em;
    color: var(--txt);

}

/* 2段落目だけ少し強調 */

.message-point {
    padding: 14px 0;
    font-size: clamp(13px, 4vw, 40px) !important;
    font-weight: bold !important;

}

/* 最後の段落だけ余白なし */

.message-txt p:last-child {
    margin-bottom: 0;

}

/* =========================

   アンダーライン

========================= */

.message-marker {
    background-image: linear-gradient(rgba(245, 236, 0, 0.65),
            rgba(245, 236, 0, 0.65));
    background-repeat: no-repeat;
    /* 最初はラインなし */
    background-size: 0% 6px;
    /* 文字の下側 */
    background-position: left 92%;
    transition: background-size 0.9s ease;

}

/* JSでis-showが付いたらラインを引く */

.message-point.is-show .message-marker {
    background-size: 100% 6px;

}

/* 画面に入ったら左 → 右へ伸ばす */

.message-point.is-show::after {
    transform: scaleX(1);

}

/* =========================

   REVIEW AREA

========================= */

.review-area {
    width: 100%;
    margin: 0;
    padding: 0;
    text-align: center;
    overflow: hidden;

}

/* 背景画像 */

.review-bg {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    margin: 0 auto;

}

/* =========================

   TITLE TAB

========================= */

.review-tab {
    display: block;
    width: 70% !important;
    max-width: 70% !important;
    margin: 0 auto 0 0 !important;
    height: auto;
}

/* =========================

   SLIDER

========================= */

.review-slider {
    position: relative;
    width: 100%;
    max-width: 750px;
    margin: 0 auto;
    padding: 35px 0 28px;

}

/* 表示範囲 */

.review-slider-viewport {
    width: 100%;
    overflow: visible;

}

/* カードを横並び */

.review-slider-track {
    display: flex;
    align-items: center;
    transition: transform 0.55s cubic-bezier(.22, .61, .36, 1);

}

/* =========================

   REVIEW CARD

========================= */

.review-card {
    flex: 0 0 32%;
    padding: 0 5px;
    box-sizing: border-box;
    opacity: 0.58;
    transform: scale(0.82);
    transition:
        transform 0.4s cubic-bezier(.22, .61, .36, 1),
        opacity 0.4s ease,
        filter 0.4s ease;
    cursor: pointer;

}

/* 画像 */

.review-card img {
    display: block;
    width: 100%;
    height: 260px;
    object-fit: contain;
    margin: 0 auto;
    border-radius: 6px;
    background: #fff;
    box-shadow:
        0 5px 14px rgba(0, 0, 0, 0.12),
        0 12px 28px rgba(0, 0, 0, 0.08);
    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease;

}

/* =========================

   中央カード

========================= */

.review-card.is-center {
    position: relative;
    z-index: 5;
    opacity: 1;
    transform: scale(1.08);

}

/* 中央だけ少し強めの影 */

.review-card.is-center img {
    box-shadow:
        0 0 0 2px rgba(255, 91, 0, 0.22),
        0 8px 18px rgba(0, 0, 0, 0.15),
        0 18px 36px rgba(255, 91, 0, 0.12);

}

/* =========================

   タップした画像をその場で少し拡大

========================= */

.review-card.is-zoom img {
    transform: scale(1.13);
    box-shadow:
        0 8px 20px rgba(0, 0, 0, 0.18),
        0 20px 40px rgba(0, 0, 0, 0.14);

}

/* =========================

   ARROW

========================= */

.review-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 38px;
    height: 38px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: var(--ltorange);
    color: #fff;
    font-size: 30px;
    display: flex;
    align-items: baseline;
    justify-content: center;
    line-height: 1;
    cursor: pointer;
    z-index: 20;

}

.review-arrow--prev {
    left: 8px;
    padding-top: 1.5px;
    padding-right: 2px;

}

.review-arrow--next {
    right: 8px;
    padding-top: 1.5px;
    padding-left: 2px;

}

/* =========================

   DOTS

========================= */

.review-dots {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 28px;

}

.review-dot {
    width: 8px;
    height: 8px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: #d3d3d3;
    transition:
        width 0.25s ease,
        background 0.25s ease;
    cursor: pointer;

}

.review-dot.is-active {
    width: 22px;
    border-radius: 10px;
    background: #ff5a00;

}

/* =========================

   FOOTER

========================= */

footer {
    width: 100%;
    font-size: 13px;
    margin: 0 auto;
    padding: 8px 8px 16px;
    color: #fff;
    background-color: #1a1a1a;
}

footer .copyright {
    text-align: center;
}

footer ul {
    padding: 0 0 16px;
    margin: 0;
}

footer li {
    list-style: none;
    padding: .3em 0;
    text-align: left;
}

footer li a {
    color: #fff;
    text-decoration: none;
}

/* =========================

   SMARTPHONE

========================= */

@media screen and (max-width: 600px) {
    .review-slider {
        padding: 15px 0 24px;
    }
    .review-card {
        /* 中央＋左右が少し見える */
        flex-basis: 52%;
        padding: 0 4px;
    }
    .review-card img {
        height: 230px;
    }
    .review-card.is-center {
        transform: scale(1.05);
    }
    .review-card.is-zoom img {
        transform: scale(1.1);
    }
    .review-arrow {
        width: 34px;
        height: 34px;
        font-size: 26px;
    }
    .review-arrow--prev {
        left: 5px;
    }
    .review-arrow--next {
        right: 5px;
    }

}