@charset "UTF-8";

/**
 * トップページ用スタイル(common.css の後に読み込む)
 *
 * 目次
 *   1. トップ画像
 *   2. クリンボンの説明
 *   3. 施工実績
 *   4. クリンボン！の強み！
 *   5. 商品ラインナップ
 *   6. よくある質問(アコーディオン)
 *   7. レスポンシブ
 *   8. 印刷
 */


/* =========================================================
   1. トップ画像
   ========================================================= */
.hero {
    position: relative;
}

.hero__img {
    display: block;
    width: 100%;
}

/* 下端を次のセクションの色へなじませる */
.hero::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 56px;
    background: linear-gradient(rgba(226, 242, 252, 0), #e2f2fc);
    pointer-events: none;
}


/* =========================================================
   2. クリンボンの説明
   背景写真(sec2_bg)の白地とロゴ画像(白背景のJPG)を、乗算で淡い水色になじませる
   ========================================================= */
.intro {
    position: relative;
    padding: 72px 0 200px;
    text-align: center;
    background-color: #e2f2fc;
    background-image:
        url("../images/sec2_bg.webp"),
        linear-gradient(180deg, #e2f2fc 0%, #eef8fe 45%, #f7fcff 100%);
    background-position: center bottom, 0 0;
    background-size: cover, 100% 100%;
    background-repeat: no-repeat;
    background-blend-mode: multiply, normal;
    overflow: hidden;
}

/* やわらかい光と小さな泡で、余白が単調にならないように */
.intro::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse 60% 45% at 50% 30%, rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0) 70%),
        radial-gradient(circle at 12% 22%, rgba(255, 255, 255, 0) 0 9px, rgba(255, 255, 255, 0.9) 10px 11px, rgba(255, 255, 255, 0) 12px),
        radial-gradient(circle at 84% 16%, rgba(255, 255, 255, 0) 0 14px, rgba(255, 255, 255, 0.85) 15px 16px, rgba(255, 255, 255, 0) 17px),
        radial-gradient(circle at 90% 44%, rgba(255, 255, 255, 0) 0 6px, rgba(255, 255, 255, 0.9) 7px 8px, rgba(255, 255, 255, 0) 9px),
        radial-gradient(circle at 7% 52%, rgba(255, 255, 255, 0) 0 5px, rgba(255, 255, 255, 0.9) 6px 7px, rgba(255, 255, 255, 0) 8px);
}

.intro .container {
    position: relative;
}

.intro__logo {
    display: block;
    width: min(440px, 70%);
    margin: 0 auto;
    mix-blend-mode: multiply;
}

.intro__text {
    margin-top: 32px;
    font-size: clamp(17px, 1.8vw, 22px);
    font-weight: 700;
    line-height: 2.1;
    color: var(--color-primary-dark);
    text-shadow: 0 0 6px #fff, 0 0 12px #fff, 0 0 18px #fff;
}


/* =========================================================
   3. 施工実績
   ========================================================= */
.works__list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    list-style: none;
}

.works__item {
    padding: 16px;
    background-color: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
}

.works__item img {
    display: block;
    width: 100%;
}


/* =========================================================
   4. クリンボン！の強み！
   写真を背景にした3列を画面幅いっぱいに並べ、文字を重ねる(当初のデザインを踏襲)
   ========================================================= */
.strengths {
    padding-bottom: 0;
}

.strengths .section-title {
    margin-bottom: 48px;
    font-size: clamp(28px, 3.4vw, 44px);
}

.strengths__list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}

.point {
    min-height: clamp(600px, 48vw, 760px);
    padding: 64px 24px 240px;
    text-align: center;
    background-color: #e6f5fc;
    background-position: center bottom;
    background-size: cover;
    background-repeat: no-repeat;
}

/* 上部を白くぼかして文字を読みやすく */
.point--1 {
    background-image: linear-gradient(rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0) 55%), url("../images/sec3_bg2.webp");
    background-position: 6% bottom;
}

.point--2 {
    background-image: linear-gradient(rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0) 55%), url("../images/sec4_bg.webp");
}

.point--3 {
    background-image: linear-gradient(rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0) 55%), url("../images/sec5_bg2.webp");
    background-position: 22% bottom;
}

.point__num {
    display: inline-block;
    padding: 0 4px 2px;
    font-size: clamp(22px, 2vw, 30px);
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--color-primary-dark);
    background: linear-gradient(transparent 82%, rgba(0, 102, 255, 0.7) 82%);
}

.point__title {
    margin-top: 12px;
    font-size: clamp(36px, 3.4vw, 52px);
    font-weight: 900;
    line-height: 1.3;
    letter-spacing: 0.04em;
    color: var(--color-primary-dark);
    text-shadow: 0 0 8px #fff, 0 0 16px #fff;
}

.point__text {
    margin-top: 20px;
    font-size: clamp(14px, 1.22vw, 19px);
    font-weight: 700;
    line-height: 2.1;
    text-shadow: 0 0 4px #fff, 0 0 8px #fff, 0 0 12px #fff;
}


/* =========================================================
   5. 商品ラインナップ
   ========================================================= */
.lineup__slider {
    padding: 32px;
    background-color: #fff;
    border-radius: 18px;
    box-shadow: var(--shadow-card);
}

.lineup .swiper {
    --swiper-navigation-size: 44px;
    --swiper-navigation-color: var(--color-primary);
    --swiper-navigation-sides-offset: 0px;
}

.lineup .swiper-slide {
    padding: 0 60px;
}

.lineup .swiper-slide img {
    display: block;
    width: 100%;
}

.lineup .swiper-button-prev,
.lineup .swiper-button-next {
    background-color: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
    transition: background-color 0.25s;
}

.lineup .swiper-button-prev:hover,
.lineup .swiper-button-next:hover {
    background-color: var(--color-bg-tint);
}

.lineup .swiper-button-prev svg,
.lineup .swiper-button-next svg {
    width: 14px;
    height: 14px;
}

/* サムネイル(製品の切替) */
.swiper-my-pagination {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 12px;
    margin-top: 28px;
}

.lineup .swiper-my-pagination .swiper-pagination-bullet {
    display: block;
    width: auto;
    height: auto;
    margin: 0;
    padding: 8px 6px;
    background-color: #fff;
    border: 2px solid var(--color-border);
    border-radius: 10px;
    opacity: 1;
    cursor: pointer;
    transition: border-color 0.25s, box-shadow 0.25s;
}

.lineup .swiper-my-pagination .swiper-pagination-bullet:hover {
    border-color: #a9cbe6;
}

.lineup .swiper-my-pagination .swiper-pagination-bullet-active {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(11, 124, 208, 0.18);
}

.swiper-my-pagination img {
    display: block;
    width: 100%;
}


/* =========================================================
   6. よくある質問(アコーディオン)
   ========================================================= */
.accordion__item {
    margin-bottom: 12px;
    background-color: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
}

.accordion__q {
    position: relative;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 64px 18px 20px;
    font-size: 17px;
    font-weight: 700;
    line-height: 1.6;
    list-style: none;
    cursor: pointer;
    transition: background-color 0.25s;
}

.accordion__q::-webkit-details-marker {
    display: none;
}

.accordion__q:hover {
    background-color: var(--color-bg-tint);
}

/* 開閉アイコン */
.accordion__q::after {
    content: "";
    position: absolute;
    top: 50%;
    right: 28px;
    width: 10px;
    height: 10px;
    margin-top: -7px;
    border-right: 2px solid var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    transform: rotate(45deg);
    transition: transform 0.3s, margin-top 0.3s;
}

.accordion__item[open] .accordion__q::after {
    margin-top: -2px;
    transform: rotate(-135deg);
}

.accordion__item::details-content {
    block-size: 0;
    overflow: hidden;
    transition: block-size 0.35s ease, content-visibility 0.35s allow-discrete;
}

.accordion__item[open]::details-content {
    block-size: auto;
}

.accordion__a {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin: 0 20px;
    padding: 20px 0 24px;
    border-top: 1px dashed var(--color-border);
}

.accordion__a p {
    flex: 1;
    padding-top: 4px;
    font-size: 15.5px;
}


/* =========================================================
   7. レスポンシブ
   ========================================================= */

/* --- 〜1099px:強みは1列(画面幅いっぱい)に --- */
@media screen and (max-width: 1099px) {
    .strengths__list {
        grid-template-columns: 1fr;
    }

    .point {
        min-height: 560px;
        padding: 56px 24px 260px;
    }

    .point--1 {
        background-position: 20% bottom;
    }

    .point__text {
        font-size: 17px;
    }
}

/* --- スマホ(〜767px) --- */
@media screen and (max-width: 767px) {
    .hero::after {
        height: 32px;
    }

    .intro {
        padding: 48px 0 104px;
    }

    .intro__logo {
        width: 210px;
    }

    .intro__text {
        margin-top: 20px;
        font-size: 16px;
        line-height: 2;
    }

    .works__list {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .works__item {
        padding: 10px;
    }

    .strengths .section-title {
        margin-bottom: 28px;
        font-size: 28px;
    }

    .point {
        min-height: 0;
        padding: 40px 16px 220px;
    }

    .point__num {
        font-size: 20px;
    }

    .point__title {
        margin-top: 8px;
        font-size: 30px;
    }

    .point__text {
        margin-top: 14px;
        font-size: min(15px, 3.8vw);
        line-height: 2;
    }

    .lineup__slider {
        padding: 16px 12px 20px;
        border-radius: 14px;
    }

    .lineup .swiper-slide {
        padding: 0;
    }

    /* スマホはスワイプとサムネイルで操作するため矢印は出さない */
    .lineup .swiper-button-prev,
    .lineup .swiper-button-next {
        display: none;
    }

    .swiper-my-pagination {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        margin-top: 16px;
    }

    .lineup .swiper-my-pagination .swiper-pagination-bullet {
        padding: 6px 4px;
        border-radius: 8px;
    }

    .accordion__item {
        margin-bottom: 10px;
    }

    .accordion__q {
        gap: 12px;
        padding: 14px 44px 14px 14px;
        font-size: 15px;
    }

    .accordion__q::after {
        right: 18px;
        width: 8px;
        height: 8px;
    }

    .accordion__a {
        gap: 12px;
        margin: 0 14px;
        padding: 14px 0 18px;
    }

    .accordion__a p {
        padding-top: 2px;
        font-size: 14.5px;
    }
}


/* =========================================================
   8. 印刷
   ========================================================= */
@media print {
    .accordion__item::details-content {
        block-size: auto;
        content-visibility: visible;
    }

    .works__item,
    .point {
        break-inside: avoid;
        box-shadow: none;
    }
}