body {
    background-color: #0f2a1f; /* 深緑 */
    font-family: 'Noto Sans JP', sans-serif; /* 本文は読みやすく */
}

.collection {
    max-width: 1100px;
    margin: 0 auto;
    padding: 180px 20px 80px;
    font-family: 'Noto Sans JP', serif;
    background: transparent; /* ← これが重要 */
    color: #e6efe9; /* ← 深緑背景用の文字色 */
}

.collection-title {
    font-family: 'Cormorant Garamond', 'Cinzel', serif;
    text-align: center;
    font-size: 47px;
    letter-spacing: 0.15em;
    margin-bottom: 40px;
    color: var(--accent-gold);
}

.collection-lead {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 80px;
}

.highlight-gold {
    color: var(--accent-gold);
    font-weight: 500;
    letter-spacing: 0.08em;
    text-shadow: 0 0 6px rgba(198, 166, 100, 0.25);
}

.ingredient {
    display: flex;
    gap: 40px;
    margin-bottom: 80px;
    align-items: center;
}

.ingredient.reverse {
    flex-direction: row-reverse;
}

.ingredient-img {
    flex: 0 0 48%;
    min-width: 0;
}

.ingredient-img img {
    border-radius: 5px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}

.ingredient-text {
    flex: 0 0 48%;
    min-width: 0;
}

.ingredient-text h2 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.ingredient-title {
    font-family: 'Cinzel', serif;
    font-size: 1.8rem;
    letter-spacing: 0.12em;
}

.ingredient-title .num {
    margin-right: 0.6em;
    color: #bfa36a; /* ゴールド */
}

/* =========================
   How to Use
========================= */

.how-to-use {
    max-width: 1000px;
    margin: 0 auto 120px;
}

.how-to-title {
    font-family: 'Cormorant Garamond', 'Cinzel', serif;
    text-align: center;
    font-size: 1.8rem;
    letter-spacing: 0.15em;
    margin-bottom: 60px;
    color: var(--accent-gold);
}

.how-to-inner {
    display: flex;
    gap: 48px;
    align-items: center;
}

.how-to-text {
    flex: 1;
    line-height: 1.9;
    font-size: 0.95rem;
}

.how-to-text p {
    margin-bottom: 1.4em;
}

.how-to-image {
    flex: 1;
}

.how-to-image img {
    width: 100%;
    border-radius: 5px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.35);
}


.product-name {
    text-align: center;
    font-size: 1.6rem;
    margin: 80px 0 40px;
}

.price-notice {
    text-align: center;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: rgba(255,255,255,0.75);
    margin-bottom: 20px;
}

.price-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

/* 価格カード全体 */
.price-card {
    background: rgba(255, 255, 255, 0.04); /* 深緑の上に浮く面 */
    border: 1px solid rgba(201, 162, 77, 0.35); /* ゴールド枠 */
    padding: 28px 24px;
    text-align: center;
    border-radius: 5px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
    transition: transform .3s, box-shadow .3s;
    line-height: 1.6;
}

/* ホバー（PCのみ） */
.price-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}

/* カード内文字 */
.price-card h3 {
    color: #f2f7f4;
    font-size: 1.05rem;   /* 小さめ・上品 */
    line-height: 1.4;}


.price {
    color: #ffffff;
    font-size: 1.25rem;  /* 数字が主役になるサイズ */
    line-height: 1.3;
    margin: 20px 0 32px; 
    font-family: 'Cinzel', serif;   
}

.price-amount {
    display: block;
    font-size: 2.0rem;      /* ← 金額をしっかり大きく */
    font-weight: 300;
    letter-spacing: 0.05em;
    font-family: 'Cinzel', serif;       
}

.price-tax {
    display: block;
    font-size: 1.0rem;     /* ← 税込は小さく */
    opacity: 0.7;
    margin-top: 4px;
}

/* 割引率 */
.price-card h3 span {
    color: var(--accent-gold);
    font-size: 0.8rem;
}
/* 購入ボタン */
.btn-buy {
    border: 1px solid var(--accent-gold);
    color: var(--accent-gold);
    padding: 10px 22px;   /* 縦を抑える */
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    border-radius: 3px;
}

.btn-buy:hover {
    background: var(--accent-gold);
    color: #ffffff;
}

/* 定期購入カード（特別扱い） */
.price-card.subscription {
    background: linear-gradient(
        135deg,
        rgba(201, 162, 77, 0.22),
        rgba(201, 162, 77, 0.06)
    );
    border: 1px solid rgba(201, 162, 77, 0.7);
    box-shadow:
        0 0 0 1px rgba(201, 162, 77, 0.25),
        0 18px 45px rgba(0, 0, 0, 0.45);
    transform: none;
}

.price-card.subscription:hover {
    transform: translateY(-6px);
}

.price-card.subscription .btn-buy {
    background: var(--accent-gold);
    color: #ffffff;
}

.price-card.subscription .btn-buy:hover {
    box-shadow: 0 15px 30px rgba(197, 160, 89, 0.4);    
}

.subscription {
    background: #f3f6f4;
}

.product-section {
    margin-top: 120px;
    padding: 80px 20px;
    background: rgba(255, 255, 255, 0.05);
}

.section-divider {
    margin: 120px auto 100px;
    width: 180px;
    height: 1px;
    background: linear-gradient(
        to right,
        transparent,
        var(--accent-gold),
        transparent
    );
}

.product-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 100px auto 80px;
    gap: 40px;
}

.product-img {
    width: 280px;
    max-width: 40vw;
    border-radius: 5px; /* 角を少し丸く */
    box-shadow: 0 20px 40px rgba(0,0,0,0.35);
}

.product-img.sub {
    transform: translateY(90px);
    opacity: 0.95;
}

.external-note {
    text-align: center;
    font-size: 0.7rem;
    opacity: 0.6;
    margin-top: 24px;
}

.product-video {
    max-width: 900px;
    margin: 120px auto 120px;
    text-align: center;
}

.video-title {
    font-family: 'Cormorant Garamond', 'Cinzel', serif;
    font-size: 1.6rem;
    letter-spacing: 0.15em;
    margin-bottom: 32px;
    color: var(--accent-gold);
}
.video-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 */
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.35);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.video-note {
    font-size: 0.75rem;
    opacity: 0.7;
    margin-top: 16px;
}

.subscription-note {
    font-size: 0.7rem;
    opacity: 0.7;
    margin-top: 8px;
}

/* =========================
   スマホ最適化
========================= */
@media (max-width: 768px) {

    /* 全体余白を少しタイトに */
    .collection {
        padding: 120px 16px;
    }

    /* タイトル */
    .collection-title {
        font-size: 1.8rem;
        letter-spacing: 0.1em;
        margin-bottom: 24px;
    }

    .collection-lead {
        font-size: 0.95rem;
        margin-bottom: 60px;
    }

    /* 成分ブロック：縦並び */
    .ingredient,
    .ingredient.reverse {
        flex-direction: column;
        gap: 24px;
        margin-bottom: 60px;
    }

    .ingredient-img,
    .ingredient-text {
        flex: 0 0 100%;
        min-width: 0;
    }

    /* 画像をスマホでしっかり見せる */
    .ingredient-img img {
        max-width: 100%;
        border-radius: 10px;
    }

    /* 見出し */
    .ingredient-text h2 {
        font-size: 1.2rem;
    }

    .ingredient-text p {
        font-size: 0.95rem;
        line-height: 1.8;
    }
	 .how-to-inner {
	      flex-direction: column;
	      gap: 32px;
	  }

	  .how-to-title {
	      font-size: 1.4rem;
	      margin-bottom: 40px;
	  }

	  .how-to-text {
	      font-size: 0.95rem;
	  }    

    /* 商品名 */
    .product-name {
        font-size: 1.3rem;
        margin: 60px 0 32px;
    }

    /* 価格カード */
    .price-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .price-card {
        padding: 20px;
    }

    .price {
        font-size: 1.3rem;
    }

    /* 購入ボタン：押しやすく */
    .btn-buy {
        padding: 14px 20px;
        font-size: 1rem;
        line-height: 1.6;    /* ← 文字の上下も安定 */
        box-sizing: border-box;        
    }
    
    .product-visual {
        flex-direction: column;
        margin: 60px auto;
    }

    .product-img {
        width: 70%;
        max-width: 320px;
    }

    .product-img.sub {
        transform: none;
        margin-top: -20px;
    }   
    .price-amount {
        font-size: 1.8rem;
    }

    .price-tax {
        font-size: 1.0rem;
    }
    
    .product-video {
        margin: 80px auto;
        padding: 0 10px;
    }

    .video-title {
        font-size: 1.3rem;
    }

    .video-wrapper {
        border-radius: 8px;
    }         
}