:root{
  --navy:#0f2350;
  --navy-deep:#0a1938;
  --gold:#c9a15a;
  --gold-soft:#e8d5a8;
  --red:#c0392b;
  --white:#ffffff;
  --ivory:#faf8f4;
  --gray:#6b7280;
  --line:#e6e2d8;
  --radius:4px;
  --shadow:0 8px 30px rgba(15,35,80,.08);
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"Noto Sans JP","Hiragino Sans","Yu Gothic",sans-serif;
  color:#1c2333;
  background:var(--white);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
.container{max-width:1120px;margin:0 auto;padding:0 24px;}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.2em;color:var(--gold);
  font-weight:700;margin-bottom:10px;
}
h2.section-title{
  font-size:28px;font-weight:700;color:var(--navy);letter-spacing:.03em;margin-bottom:8px;
}
.section-sub{color:var(--gray);font-size:14px;margin-bottom:40px;}
.center{text-align:center;}

/* ===== BASE風 店舗ヘッダー ===== */
.base-topbar{
  background:var(--navy-deep);color:#cfd6e6;font-size:12px;
}
.base-topbar .container{display:flex;justify-content:space-between;align-items:center;height:32px;}
.store-header{
  background:var(--white);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:50;
}
.store-header .container{
  display:flex;align-items:center;justify-content:space-between;height:76px;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{width:40px;height:40px;flex:none;}
.brand-text .name{font-size:20px;font-weight:800;color:var(--navy);letter-spacing:.04em;}
.brand-text .tagline{font-size:10px;color:var(--gold);letter-spacing:.15em;}
nav.main-nav{display:flex;gap:32px;}
nav.main-nav a{font-size:14px;font-weight:600;color:#2a3352;position:relative;padding:6px 0;}
nav.main-nav a.active,nav.main-nav a:hover{color:var(--navy);}
nav.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--gold);}
.header-icons{display:flex;align-items:center;gap:18px;}
.header-icons .icon-btn{position:relative;width:22px;height:22px;color:var(--navy);}
.cart-count{
  position:absolute;top:-6px;right:-8px;background:var(--red);color:#fff;
  font-size:10px;width:16px;height:16px;border-radius:50%;display:flex;align-items:center;justify-content:center;
}
.mobile-toggle{display:none;}

/* ===== Hero ===== */
.hero{
  position:relative;background:linear-gradient(135deg,var(--navy) 0%,var(--navy-deep) 65%);
  overflow:hidden;
}
.hero .container{
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
  padding-top:64px;padding-bottom:64px;position:relative;z-index:2;
}
.hero-copy .eyebrow{color:var(--gold-soft);}
.hero-copy h1{
  font-size:40px;color:#fff;font-weight:800;line-height:1.5;margin-bottom:18px;
}
.hero-copy h1 span{color:var(--gold-soft);}
.hero-copy p{color:#c9d1e8;font-size:15px;margin-bottom:28px;max-width:440px;}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px;}
.hero-badges span{
  border:1px solid rgba(232,213,168,.5);color:var(--gold-soft);font-size:12px;
  padding:6px 14px;border-radius:999px;letter-spacing:.05em;
}
.hero-visual{position:relative;}
.hero-visual img{border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.35);}
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  padding:14px 32px;border-radius:2px;font-weight:700;font-size:14px;letter-spacing:.05em;
  cursor:pointer;border:none;transition:.2s;
}
.btn-gold{background:var(--gold);color:var(--navy-deep);}
.btn-gold:hover{background:#d8b876;}
.btn-outline{background:transparent;border:1px solid var(--gold-soft);color:var(--gold-soft);}
.btn-navy{background:var(--navy);color:#fff;}
.btn-navy:hover{background:var(--navy-deep);}
.btn-block{width:100%;}

/* ===== 帯（数値・信頼） ===== */
.trust-strip{background:var(--ivory);border-bottom:1px solid var(--line);padding:22px 0;}
.trust-strip .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px;}
.trust-item{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--navy);font-weight:600;}
.trust-item .ico{width:22px;height:22px;color:var(--gold);flex:none;}

/* ===== セクション共通 ===== */
section{padding:72px 0;}
section.alt{background:var(--ivory);}

/* 成分6つの力 */
.power-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.power-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;
  box-shadow:var(--shadow);position:relative;
}
.power-num{
  position:absolute;top:-14px;left:22px;width:30px;height:30px;border-radius:50%;
  background:var(--navy);color:#fff;font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.power-card h3{font-size:16px;color:var(--navy);margin:10px 0 4px;font-weight:800;}
.power-card .mg{font-size:12px;color:var(--gold);font-weight:700;margin-bottom:10px;}
.power-card ul{list-style:none;font-size:12.5px;color:var(--gray);}
.power-card li{padding-left:16px;position:relative;margin-bottom:4px;}
.power-card li::before{content:"✓";position:absolute;left:0;color:var(--gold);font-weight:800;}

/* 商品グリッド */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.product-card{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;
  transition:.2s;position:relative;
}
.product-card:hover{box-shadow:var(--shadow);transform:translateY(-2px);}
.product-card .thumb{aspect-ratio:1/1;overflow:hidden;background:#f4f1ea;display:flex;align-items:center;justify-content:center;}
.product-card .thumb img{width:100%;height:100%;object-fit:contain;}
.product-card .thumb.photo img{object-fit:cover;}
.product-card .badge{
  position:absolute;top:12px;left:12px;background:var(--red);color:#fff;font-size:11px;
  padding:4px 10px;border-radius:2px;font-weight:700;z-index:2;
}
.product-card .info{padding:16px 18px 20px;}
.product-card .info .cat{font-size:11px;color:var(--gold);font-weight:700;letter-spacing:.08em;}
.product-card .info h3{font-size:15px;color:var(--navy);margin:6px 0 8px;font-weight:700;}
.product-card .price{font-size:18px;font-weight:800;color:var(--navy-deep);}
.product-card .price small{font-size:11px;color:var(--gray);font-weight:400;margin-left:6px;}
.product-card .add-cart{
  margin-top:12px;width:100%;padding:10px;background:var(--navy);color:#fff;font-size:12.5px;
  font-weight:700;border:none;border-radius:2px;cursor:pointer;
}
.product-card .add-cart:hover{background:var(--navy-deep);}

/* お客様の声 */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.voice-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;}
.voice-stars{color:var(--gold);font-size:14px;margin-bottom:10px;letter-spacing:2px;}
.voice-card p{font-size:13.5px;color:#3a4258;margin-bottom:14px;}
.voice-person{display:flex;align-items:center;gap:10px;}
.voice-person img{width:38px;height:38px;border-radius:50%;object-fit:cover;}
.voice-person .who{font-size:12px;color:var(--gray);}
.voice-person .who b{color:var(--navy);display:block;font-size:13px;}

/* ブランドストーリー */
.story{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center;}
.story img{border-radius:6px;}
.story .eyebrow{color:var(--gold);}
.story h2{font-size:26px;color:var(--navy);margin-bottom:16px;font-weight:800;}
.story p{color:#4b5468;font-size:14.5px;margin-bottom:14px;}

/* Instagram風ギャラリー */
.gallery-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;}
.gallery-grid .gitem{aspect-ratio:1/1;overflow:hidden;border-radius:2px;background:#f4f1ea;display:flex;align-items:center;justify-content:center;}
.gallery-grid .gitem img{width:100%;height:100%;object-fit:cover;}
.gallery-grid .gitem.contain img{object-fit:contain;}

/* フッター */
footer{background:var(--navy-deep);color:#aab4cf;padding:56px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:40px;}
.footer-brand .name{color:#fff;font-size:18px;font-weight:800;margin-bottom:10px;}
.footer-brand p{font-size:12.5px;color:#8b96b8;max-width:280px;}
footer h4{color:#fff;font-size:13px;margin-bottom:16px;letter-spacing:.05em;}
footer ul{list-style:none;}
footer li{margin-bottom:10px;font-size:12.5px;}
footer a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-top:20px;font-size:11.5px;
  display:flex;justify-content:space-between;color:#7684a8;flex-wrap:wrap;gap:10px;
}

/* 固定SPカート（モバイル購入導線） */
.sp-fixed-bar{display:none;}

/* パンくず */
.breadcrumb{font-size:12px;color:var(--gray);padding:16px 0;border-bottom:1px solid var(--line);}
.breadcrumb a{color:var(--gray);}
.breadcrumb a:hover{color:var(--navy);}
.breadcrumb .sep{margin:0 6px;}

/* 商品詳細ページ */
.pd-layout{display:grid;grid-template-columns:1fr 1fr;gap:56px;padding:48px 0;}
.pd-gallery .main-img{border:1px solid var(--line);border-radius:6px;overflow:hidden;margin-bottom:12px;aspect-ratio:1/1;background:#f4f1ea;display:flex;align-items:center;justify-content:center;}
.pd-gallery .main-img img{width:100%;height:100%;object-fit:contain;}
.pd-thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;}
.pd-thumbs img{aspect-ratio:1/1;object-fit:contain;background:#f4f1ea;border:2px solid transparent;border-radius:4px;cursor:pointer;}
.pd-thumbs img[data-full$=".jpeg"]{object-fit:cover;}
.pd-thumbs img.active{border-color:var(--gold);}
.pd-info .cat-tag{font-size:12px;color:var(--gold);font-weight:700;letter-spacing:.08em;}
.pd-info h1{font-size:26px;color:var(--navy);margin:10px 0 12px;font-weight:800;}
.pd-rating{display:flex;align-items:center;gap:8px;margin-bottom:20px;font-size:13px;color:var(--gray);}
.pd-rating .stars{color:var(--gold);}
.pd-price-box{
  background:var(--ivory);border:1px solid var(--line);border-radius:6px;padding:22px;margin-bottom:24px;
}
.pd-price{font-size:30px;font-weight:800;color:var(--navy-deep);}
.pd-price .tax{font-size:12px;color:var(--gray);font-weight:400;margin-left:8px;}
.pd-price-note{font-size:12px;color:var(--red);margin-top:6px;font-weight:600;}
.pd-options{margin-bottom:22px;}
.pd-options label{font-size:13px;font-weight:700;color:var(--navy);display:block;margin-bottom:8px;}
.qty-select{display:flex;gap:10px;}
.qty-select select{
  border:1px solid var(--line);padding:10px 14px;border-radius:4px;font-size:14px;flex:1;background:#fff;
}
.buy-row{display:flex;gap:12px;margin-bottom:20px;}
.buy-row .btn{flex:1;padding:16px;font-size:15px;}
.pd-trust{display:flex;flex-direction:column;gap:10px;margin-bottom:30px;}
.pd-trust .item{display:flex;gap:10px;font-size:12.5px;color:#4b5468;align-items:flex-start;}
.pd-trust .ico{width:18px;height:18px;color:var(--gold);flex:none;margin-top:1px;}
.pd-tabs{display:flex;border-bottom:2px solid var(--line);margin-top:8px;}
.pd-tabs button{
  padding:12px 20px;border:none;background:none;font-size:13.5px;font-weight:700;color:var(--gray);
  cursor:pointer;position:relative;top:2px;
}
.pd-tabs button.active{color:var(--navy);border-bottom:2px solid var(--gold);}
.pd-tab-panel{display:none;padding:28px 0;font-size:13.5px;color:#3a4258;}
.pd-tab-panel.active{display:block;}
.spec-table{width:100%;border-collapse:collapse;}
.spec-table th,.spec-table td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);font-size:13px;}
.spec-table th{width:150px;color:var(--navy);background:var(--ivory);font-weight:700;}

/* 関連商品 */
.related-title{font-size:20px;color:var(--navy);font-weight:800;margin-bottom:24px;}

/* 会社紹介ページ */
.about-hero{background:var(--navy);color:#fff;padding:70px 0;text-align:center;}
.about-hero .eyebrow{color:var(--gold-soft);}
.about-hero h1{font-size:30px;font-weight:800;margin-top:10px;}
.about-hero p{color:#c9d1e8;margin-top:14px;max-width:560px;margin-left:auto;margin-right:auto;font-size:14px;}
.info-table{width:100%;border-collapse:collapse;margin-top:10px;}
.info-table th,.info-table td{padding:16px 20px;border-bottom:1px solid var(--line);text-align:left;font-size:13.5px;}
.info-table th{width:180px;color:var(--navy);font-weight:700;background:var(--ivory);}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.value-card{text-align:center;padding:30px 20px;border:1px solid var(--line);border-radius:6px;}
.value-card .ico{width:38px;height:38px;color:var(--gold);margin:0 auto 16px;}
.value-card h3{font-size:15px;color:var(--navy);margin-bottom:10px;font-weight:800;}
.value-card p{font-size:12.5px;color:var(--gray);}

/* カート・購入手続きページ */
.cart-layout{display:grid;grid-template-columns:1.6fr 1fr;gap:40px;padding:48px 0;align-items:start;}
.step-flow{display:flex;justify-content:space-between;margin-bottom:36px;font-size:12px;color:var(--gray);}
.step-flow .step{display:flex;flex-direction:column;align-items:center;gap:6px;flex:1;position:relative;}
.step-flow .step .dot{width:26px;height:26px;border-radius:50%;background:var(--line);color:#8890a4;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:12px;}
.step-flow .step.done .dot{background:var(--gold);color:#fff;}
.step-flow .step.current .dot{background:var(--navy);color:#fff;}
.step-flow .step:not(:last-child)::after{content:"";position:absolute;top:13px;left:60%;right:-40%;height:2px;background:var(--line);}
.cart-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line);}
.cart-item img{width:80px;height:80px;object-fit:cover;border-radius:4px;}
.cart-item .meta{flex:1;}
.cart-item .meta h4{font-size:14px;color:var(--navy);margin-bottom:6px;}
.cart-item .meta .opt{font-size:12px;color:var(--gray);}
.cart-item .price{font-weight:800;color:var(--navy-deep);}
.summary-box{border:1px solid var(--line);border-radius:6px;padding:24px;background:var(--ivory);}
.summary-row{display:flex;justify-content:space-between;font-size:13.5px;margin-bottom:12px;color:#3a4258;}
.summary-row.total{font-size:17px;font-weight:800;color:var(--navy-deep);border-top:1px solid var(--line);padding-top:14px;margin-top:6px;}
.pay-icons{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap;}
.pay-icons span{border:1px solid var(--line);border-radius:4px;padding:6px 10px;font-size:11px;color:var(--gray);}

/* Before/After比較 */
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--line);border-radius:6px;overflow:hidden;}
.compare-col{background:#fff;padding:26px;}
.compare-col.before{background:#f7f7f5;}
.compare-col .tag{display:inline-block;font-size:11px;font-weight:800;padding:4px 12px;border-radius:999px;margin-bottom:14px;}
.compare-col.before .tag{background:#e5e5e5;color:#666;}
.compare-col.after .tag{background:var(--gold);color:#fff;}
.compare-col ul{list-style:none;font-size:13px;color:#4b5468;}
.compare-col li{padding-left:18px;position:relative;margin-bottom:10px;}
.compare-col.before li::before{content:"✕";position:absolute;left:0;color:#b5b5b5;}
.compare-col.after li::before{content:"✓";position:absolute;left:0;color:var(--gold);font-weight:800;}

/* レスポンシブ */
@media(max-width:960px){
  nav.main-nav{display:none;}
  .hero .container{grid-template-columns:1fr;padding-top:36px;padding-bottom:36px;}
  .hero-copy h1{font-size:28px;}
  .power-grid,.product-grid,.voice-grid{grid-template-columns:repeat(2,1fr);}
  .story{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .gallery-grid{grid-template-columns:repeat(3,1fr);}
  .pd-layout{grid-template-columns:1fr;gap:28px;}
  .cart-layout{grid-template-columns:1fr;}
  .compare-wrap{grid-template-columns:1fr;}
  .value-grid{grid-template-columns:1fr;}
  section{padding:48px 0;}
  .sp-fixed-bar{
    display:flex;position:fixed;bottom:0;left:0;right:0;background:#fff;
    border-top:1px solid var(--line);padding:10px 14px;gap:10px;z-index:60;
    box-shadow:0 -6px 20px rgba(0,0,0,.08);
  }
  .sp-fixed-bar .price-mini{flex:0 0 auto;display:flex;flex-direction:column;justify-content:center;}
  .sp-fixed-bar .price-mini b{font-size:16px;color:var(--navy-deep);}
  .sp-fixed-bar .price-mini span{font-size:10px;color:var(--gray);}
  .sp-fixed-bar .btn{flex:1;padding:13px;}
  body.has-sp-bar{padding-bottom:70px;}
}
@media(max-width:600px){
  .product-grid,.power-grid,.voice-grid{grid-template-columns:1fr 1fr;}
  .gallery-grid{grid-template-columns:repeat(3,1fr);}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .pd-thumbs{grid-template-columns:repeat(4,1fr);}
}