/* ========================================
   CHOPLATE — style.css (v2)
   Following jiu10.com design language
   Mobile-first responsive design
   ======================================== */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #ffffff;
  --color-bg-sub: #fafafa;
  --color-bg-sub2: #f5f5f3;
  --color-text: #1a1a1a;
  --color-text-body: #555;
  --color-text-sub: #777;
  --color-text-mute: #aaa;
  --color-border: #e8e8e8;
  --color-border-soft: #f0f0f0;
  --color-accent: #1a1a1a;

  --color-black: #1a1a1a;
  --color-stone: #8c8c84;
  --color-olive: #6b7055;

  --max-width: 1100px;
  --narrow-width: 720px;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-body);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul { list-style: none; }

/* --- Layout utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  width: 100%;
  max-width: var(--narrow-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-center { text-align: center; }

/* --- Section header (jiu10 style) --- */
.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}
.section-header__label {
  font-size: 0.68rem;
  letter-spacing: 0.24em;
  color: var(--color-text-mute);
  margin-bottom: 0.6em;
}
.section-header__title {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin: 0;
}

/* --- Button (jiu10 style) --- */
.btn-choplate {
  display: inline-block;
  border: 1px solid #222;
  color: #222;
  background: transparent;
  padding: 11px 32px;
  letter-spacing: 0.14em;
  font-size: 0.82rem;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
  cursor: pointer;
}
.btn-choplate:hover,
.btn-choplate:focus {
  background: #222;
  color: #fff;
}
.btn-choplate--sm {
  padding: 8px 22px;
  font-size: 0.76rem;
  letter-spacing: 0.18em;
}
.btn-choplate--lg {
  padding: 14px 48px;
  font-size: 0.88rem;
}
.btn-choplate--filled {
  background: #222;
  color: #fff;
}
.btn-choplate--filled:hover,
.btn-choplate--filled:focus {
  background: #000;
  color: #fff;
}

/* ========================================
   1. NAV
   ======================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  /* NOTE: backdrop-filter removed — it creates a containing block for
     fixed-positioned descendants (like .nav__mobile-menu), trapping
     the menu inside the 64px nav. */
  border-bottom: 1px solid var(--color-border);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 64px;
}
.nav__logo img {
  height: 34px;
  width: auto;
  display: block;
}
.nav__links {
  display: none;
  gap: 1.8rem;
  align-items: center;
}
.nav__links a {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--color-text);
  transition: opacity 0.25s;
}
.nav__links a:hover { opacity: 0.5; }
.nav__links .nav__shop-link {
  padding: 7px 18px;
  border: 1px solid var(--color-accent);
  transition: background 0.2s, color 0.2s;
}
.nav__links .nav__shop-link:hover {
  background: var(--color-accent);
  color: #fff;
  opacity: 1;
}

.nav__hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text);
  transition: transform 0.3s, opacity 0.3s;
}
.nav__hamburger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__hamburger.is-open span:nth-child(2) { opacity: 0; }
.nav__hamburger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav__mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  /* height auto — panel fits menu content only (not full viewport) */
  background: #ffffff;
  z-index: 200;
  padding: 2.5rem 2rem;
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}
.nav__mobile-menu.is-open {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.6rem;
}
.nav__mobile-menu a {
  font-size: 1rem;
  letter-spacing: 0.18em;
  color: var(--color-text);
}

/* ========================================
   2. HERO (auto-play video + unmute button)
   ======================================== */
.hero {
  background: #000;
  position: relative;
}
.hero__video-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.hero__video-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.hero__sound-btn {
  position: absolute;
  right: 20px;
  bottom: 20px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: background 0.2s, border-color 0.2s;
}
.hero__sound-btn:hover {
  background: rgba(0, 0, 0, 0.8);
  border-color: #fff;
}
.hero__sound-label {
  font-family: inherit;
}

/* ========================================
   3. CONCEPT HEADLINE (same as jiu10 index #bloc-concept)
   ======================================== */
.concept-headline-block {
  padding: clamp(3rem, 8vw, 6rem) 1.5rem;
  text-align: center;
}
.concept-headline {
  font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  color: #1a1a1a;
  font-size: clamp(1.9rem, 5.2vw, 3.36rem);
  font-weight: 400;
  line-height: 2.0;
  letter-spacing: 0.08em;
  margin: 0;
}
.concept-headline span { display: block; }

/* ========================================
   4. CORE CONCEPT IMAGES — photo background + text PNG overlay
   ======================================== */
.core-concept {
  padding: 0;
  margin: 0;
  background: #fff;
}
.core-concept__frame {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: #f5f5f5;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.core-concept__frame--chop {
  background-image: url("https://tent1000.com/choplate/img/choplate04.jpg");
  aspect-ratio: 16 / 10;
  min-height: 320px;
}
.core-concept__frame--plate {
  background-image: url("https://tent1000.com/choplate/img/choplate03.jpg");
  aspect-ratio: 16 / 10;
  min-height: 320px;
}
.core-concept__frame--logo {
  background: #fff;
  padding: 5rem 1.5rem;
  aspect-ratio: auto;
  min-height: 0;
}
.core-concept__overlay {
  width: 60%;
  max-width: 640px;
  height: auto;
  display: block;
  position: relative;
  z-index: 2;
}
.core-concept__logo {
  width: 100%;
  max-width: 760px;
  height: auto;
  display: block;
}

/* ========================================
   5. STORY INTRO
   ======================================== */
.story-intro {
  padding: 2rem 1.5rem 5rem;
}
.story-intro__text {
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  line-height: 2.2;
  letter-spacing: 0.08em;
  color: #1a1a1a;
  margin-bottom: 2rem;
}

/* ========================================
   6. FEATURES (jiu10-style feature-block)
   ======================================== */
.features {
  padding: 0;
  border-top: 1px solid var(--color-border);
}
.feature-block {
  display: flex;
  align-items: stretch;
  flex-direction: column;
  padding: 40px 20px;
  border-bottom: 1px solid var(--color-border-soft);
}
.feature-block:last-child { border-bottom: none; }
.feature-image {
  flex: 1;
  overflow: hidden;
}
.feature-image img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}
.feature-body {
  flex: 1;
  padding: 28px 0 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: #fff;
}
.feature-body h2 {
  font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 400;
  letter-spacing: 0.1em;
  color: #1a1a1a;
  line-height: 1.8;
  margin-bottom: 1em;
}
.feature-body p {
  font-size: clamp(0.82rem, 1.3vw, 0.94rem);
  line-height: 2.1;
  letter-spacing: 0.04em;
  color: var(--color-text-body);
  margin-bottom: 1.2em;
}
.feature-note {
  font-size: clamp(0.72rem, 1.1vw, 0.82rem) !important;
  color: var(--color-text-sub) !important;
  font-style: italic;
}
.feature-link {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: #333;
  text-decoration: none;
  border-bottom: 1px solid #ccc;
  padding-bottom: 2px;
  align-self: flex-start;
  transition: color 0.2s, border-color 0.2s;
}
.feature-link:hover {
  color: #000;
  border-color: #000;
}

/* ========================================
   7. LINEUP
   ======================================== */
.lineup {
  padding: 80px 0;
  background: var(--color-bg-sub);
}
.lineup__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.lineup-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem 1rem;
}
.product-card {
  text-align: left;
  display: flex;
  flex-direction: column;
  margin-bottom: 1.5rem;
}
.product-card__img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #fff;
  margin-bottom: 1rem;
  transition: opacity 0.25s;
}
.product-card__name {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(0.9rem, 1.5vw, 1.02rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--color-text);
  margin: 0 0 0.5rem;
}
.product-card__price {
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  color: var(--color-text);
  margin-bottom: 0.2rem;
}
.product-card__price span {
  font-size: 0.72rem;
  color: var(--color-text-sub);
  margin-left: 4px;
}
.product-card__spec {
  font-size: 0.72rem;
  line-height: 1.7;
  color: var(--color-text-sub);
  letter-spacing: 0.03em;
  margin-bottom: 1rem;
}
.product-card .btn-choplate {
  align-self: flex-start;
}
.product-card__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 0.5rem;
}
.product-card__btns .btn-choplate {
  flex: 1 1 auto;
  text-align: center;
  min-width: 0;
  padding-left: 10px;
  padding-right: 10px;
}

/* Color swatches */
.color-swatches {
  display: flex;
  gap: 8px;
  margin: 0 0 0.7rem;
}
.color-swatch {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: inline-block;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
  border: 1px solid rgba(0, 0, 0, 0.1);
}
.color-swatch:hover {
  transform: scale(1.25);
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.2);
}
.color-swatch.active {
  transform: scale(1.25);
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.5);
}

/* ========================================
   8. GALLERY
   ======================================== */
.gallery {
  padding: 80px 0;
}
.gallery__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
  max-width: 100%;
}
.gallery__grid img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #f5f5f5;
}
.gallery__text {
  padding-top: 3rem;
}
.gallery__lead {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 400;
  line-height: 2;
  letter-spacing: 0.08em;
  color: var(--color-text);
  margin-bottom: 1.5rem;
}
.gallery__sub {
  font-size: clamp(0.82rem, 1.3vw, 0.92rem);
  line-height: 2;
  letter-spacing: 0.05em;
  color: var(--color-text-body);
}
.gallery__sub strong {
  font-weight: 600;
  color: var(--color-text);
}

/* ========================================
   9. SHOP
   ======================================== */
.shop {
  padding: 80px 0;
  background: var(--color-bg-sub);
  text-align: center;
}
.shop__inner {
  max-width: var(--narrow-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.shop__lead {
  font-size: clamp(0.88rem, 1.5vw, 1rem);
  line-height: 2;
  letter-spacing: 0.05em;
  color: var(--color-text-body);
  margin-bottom: 2rem;
}
.shop__btn-wrap {
  margin-top: 1rem;
}

/* ========================================
   PLATE PAGE — HERO
   ======================================== */
.plate-hero {
  position: relative;
  background: var(--color-bg-sub);
}
.plate-hero__img-wrap {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--color-bg-sub);
}
.plate-hero__img-wrap img {
  width: 100%;
  height: 60vh;
  min-height: 320px;
  max-height: 720px;
  object-fit: cover;
  display: block;
}
/* PC only: keep bottom of image visible (trim from top) */
@media (min-width: 768px) {
  .plate-hero--trim-top .plate-hero__img-wrap img {
    object-position: center bottom;
  }
}
.plate-hero__text-wrap {
  padding: 3rem 1.5rem 4rem;
  text-align: center;
  max-width: var(--narrow-width);
  margin: 0 auto;
  background: var(--color-bg-sub);
}
.plate-hero__copy {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(1.8rem, 4.4vw, 2.8rem);
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin: 0.6rem 0 1.5rem;
}
.plate-hero__badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem 1.2rem;
  margin: 0 0 1.8rem;
  padding: 0;
}
.plate-hero__badges li {
  font-size: clamp(0.82rem, 1.3vw, 0.95rem);
  letter-spacing: 0.12em;
  color: var(--color-text);
  padding: 0.3rem 0.9rem;
  border: 1px solid var(--color-border);
  background: #fff;
  border-radius: 999px;
}
.plate-hero__badges li span {
  font-weight: 600;
  margin-left: 0.15em;
  color: var(--color-text);
}
.plate-hero__sub {
  font-size: clamp(0.78rem, 1.2vw, 0.88rem);
  letter-spacing: 0.14em;
  color: var(--color-text-sub);
}

/* ========================================
   PLATE PAGE — GALLERY
   ======================================== */
.plate-gallery {
  padding: 0;
  background: #fff;
}
.plate-gallery__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
  max-width: 100%;
}
.plate-gallery__grid img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #f5f5f5;
  display: block;
}

/* ========================================
   PLATE PAGE — SIZE PICKER
   ======================================== */
.size-picker {
  padding: 80px 0;
}
.size-picker__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.size-block {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 3rem 0;
  border-top: 1px solid var(--color-border);
}
.size-block:last-of-type {
  border-bottom: 1px solid var(--color-border);
}
.size-block__img img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #f5f5f5;
  display: block;
}
.size-block__body {
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.size-block__size {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--color-text);
  margin: 0 0 0.2em;
}
.size-block__size span {
  font-size: 0.4em;
  letter-spacing: 0.18em;
  color: var(--color-text-sub);
  margin-left: 0.3em;
}
.size-block__heading {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  line-height: 1.8;
  color: var(--color-text);
  margin: 0.5rem 0 1rem;
}
.size-block__desc {
  font-size: clamp(0.85rem, 1.3vw, 0.95rem);
  line-height: 2;
  letter-spacing: 0.04em;
  color: var(--color-text-body);
  margin-bottom: 1.2rem;
}
.size-block__price {
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--color-text);
  margin-bottom: 1.2rem;
  font-weight: 500;
}
.size-block__price span {
  font-size: 0.76rem;
  color: var(--color-text-sub);
  font-weight: 400;
  margin-left: 0.3em;
}
.size-block .btn-choplate {
  align-self: flex-start;
}
.size-block .color-swatches {
  margin: 0.2rem 0 1.2rem;
}
.size-block .color-swatch {
  width: 20px;
  height: 20px;
}

@media (min-width: 768px) {
  .size-block {
    flex-direction: row;
    gap: 3rem;
    align-items: center;
    padding: 4rem 0;
  }
  .size-block--reverse { flex-direction: row-reverse; }
  .size-block__img { flex: 1; }
  .size-block__body { flex: 1; }
}

/* ========================================
   PLATE PAGE — COMPARE
   ======================================== */
.size-compare {
  padding: 80px 0;
  background: var(--color-bg-sub);
}
.size-compare__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.size-compare__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}
.size-compare__item {
  text-align: center;
}
.size-compare__item img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #fff;
  margin-bottom: 0.8rem;
}
.size-compare__label {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(0.95rem, 1.6vw, 1.15rem);
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin: 0 0 0.3rem;
}
.size-compare__guide {
  font-size: clamp(0.72rem, 1.2vw, 0.85rem);
  line-height: 1.8;
  letter-spacing: 0.04em;
  color: var(--color-text-sub);
  margin: 0;
}
.size-compare__note {
  font-size: clamp(0.82rem, 1.3vw, 0.92rem);
  line-height: 2;
  letter-spacing: 0.04em;
  color: var(--color-text-body);
  text-align: center;
  max-width: 620px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .size-compare__grid { gap: 2rem; }
}

/* ========================================
   PLATE PAGE — COLORS & BUY
   ======================================== */
.colors-buy {
  padding: 80px 0;
  background: #fff;
}
.colors-buy__inner {
  max-width: var(--narrow-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  text-align: center;
}
.colors-buy__swatches {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.colors-buy__swatch {
  text-align: center;
}
.swatch-dot {
  display: block;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  margin: 0 auto 0.5rem;
  border: 1px solid rgba(0, 0, 0, 0.08);
}
.swatch-name {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--color-text-body);
  margin: 0;
}
.colors-buy__note {
  font-size: 0.78rem;
  color: var(--color-text-sub);
  letter-spacing: 0.04em;
  margin-bottom: 3rem;
}
.colors-buy__links {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  max-width: 380px;
  margin: 0 auto;
}
.colors-buy__links .btn-choplate {
  text-align: center;
}

@media (min-width: 768px) {
  .colors-buy__links { gap: 1rem; }
}

/* ========================================
   CAROUSEL (shared)
   ======================================== */
.carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: #f5f5f5;
  aspect-ratio: 1 / 1; /* SP default: square, no crop */
}
.carousel__track {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}
.carousel__track img {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  object-fit: contain; /* SP default: full image visible */
  display: block;
}
.carousel__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  border: none;
  color: #222;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  transition: background 0.2s, opacity 0.2s;
  opacity: 0;
}
.carousel:hover .carousel__btn,
.carousel:focus-within .carousel__btn {
  opacity: 1;
}
.carousel__btn:hover {
  background: #fff;
}
.carousel__btn--prev { left: 10px; padding-right: 2px; }
.carousel__btn--next { right: 10px; padding-left: 2px; }
.carousel__dots {
  position: absolute;
  bottom: 12px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 6px;
  z-index: 2;
  pointer-events: none;
}
.carousel__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  border: none;
  padding: 0;
  cursor: pointer;
  pointer-events: auto;
  transition: background 0.2s, transform 0.2s;
}
.carousel__dot.is-active {
  background: #fff;
  transform: scale(1.4);
}

/* carousel on mobile: always show arrows */
@media (max-width: 767px) {
  .carousel__btn {
    opacity: 0.85;
    width: 32px;
    height: 32px;
    font-size: 1.2rem;
  }
}

/* PC: carousel fills feature-image container, uses cover */
@media (min-width: 768px) {
  .feature-image .carousel {
    aspect-ratio: auto;
    height: 100%;
    min-height: 360px;
  }
  .feature-image .carousel .carousel__track img {
    object-fit: cover;
  }
}

/* ========================================
   PRODUCT PAGE — BUY (color swatches + spec table)
   Shared by bowl/knife/chopstick pages
   ======================================== */
.product-buy {
  padding: 80px 0;
  background: var(--color-bg-sub);
}
.product-buy__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.product-buy__main {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-bottom: 3rem;
  padding: 2rem;
  background: #fff;
  border-radius: 0;
}
.product-buy__img img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #f5f5f5;
  display: block;
  transition: opacity 0.3s;
}
.product-buy__body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: left;
}
.product-buy__name {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--color-text);
  margin: 0 0 1rem;
}
.product-buy__body .color-swatches {
  margin: 0.2rem 0 1.3rem;
}
.product-buy__body .color-swatch {
  width: 22px;
  height: 22px;
}
.product-buy__price {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text);
  margin: 0 0 1.5rem;
}
.product-buy__price span {
  font-size: 0.75rem;
  color: var(--color-text-sub);
  font-weight: 400;
  margin-left: 0.3em;
}
.product-buy__body .btn-choplate {
  align-self: flex-start;
}

/* Spec table */
.product-spec {
  max-width: var(--narrow-width);
  margin: 0 auto;
  padding: 0;
  border-top: 1px solid var(--color-border);
}
.product-spec__row {
  display: flex;
  flex-direction: column;
  padding: 1rem 0.2rem;
  border-bottom: 1px solid var(--color-border);
  gap: 0.3rem;
}
.product-spec__row dt {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--color-text-sub);
  margin: 0;
  font-weight: 400;
  text-transform: uppercase;
  flex-shrink: 0;
}
.product-spec__row dd {
  font-size: clamp(0.88rem, 1.4vw, 0.98rem);
  letter-spacing: 0.03em;
  color: var(--color-text);
  margin: 0;
  line-height: 1.7;
}

@media (min-width: 768px) {
  .product-buy__main {
    flex-direction: row;
    align-items: center;
    gap: 3rem;
    padding: 3rem;
  }
  .product-buy__img { flex: 1; }
  .product-buy__body { flex: 1; }
  .product-spec__row {
    flex-direction: row;
    align-items: baseline;
    gap: 2rem;
    padding: 1.2rem 1rem;
  }
  .product-spec__row dt {
    flex-basis: 140px;
  }
  .product-spec__row dd {
    flex: 1;
  }
}

/* ========================================
   STORY PAGE
   ======================================== */
.story-hero {
  padding: 6rem 1.5rem 4rem;
  background: var(--color-bg-sub);
  text-align: center;
}
.story-hero__inner {
  max-width: var(--narrow-width);
  margin: 0 auto;
}
.story-hero__title {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin: 0.7rem 0 1.5rem;
}
.story-hero__lead {
  font-size: clamp(0.85rem, 1.4vw, 0.98rem);
  line-height: 2;
  letter-spacing: 0.04em;
  color: var(--color-text-body);
}

.story {
  padding: 4rem 0 6rem;
  background: #fff;
}
.story__body {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 1.5rem;
  font-size: clamp(0.92rem, 1.4vw, 1rem);
  line-height: 2.1;
  letter-spacing: 0.04em;
  color: var(--color-text);
}
.story__body > p {
  margin: 0 0 1.5em;
}
.story__body a {
  color: var(--color-text);
  border-bottom: 1px solid #ccc;
  transition: border-color 0.2s;
}
.story__body a:hover {
  border-bottom-color: var(--color-text);
}
.story__body strong {
  font-weight: 600;
  background: linear-gradient(transparent 65%, rgba(200, 200, 100, 0.25) 65%);
  padding: 0 0.05em;
}

/* Chapter heading */
.story__chapter {
  max-width: 680px;
  margin: 5rem auto 2rem;
  padding: 3rem 1.5rem 0;
  text-align: center;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(1.2rem, 2.3vw, 1.45rem);
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: 0.1em;
  color: var(--color-text);
  border-top: 1px solid var(--color-border);
  position: relative;
}
.story__chapter::before {
  content: "CHAPTER " attr(data-chapter);
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  color: var(--color-text-mute);
  margin-bottom: 0.9em;
  font-weight: 400;
}

/* Story image */
.story-img {
  margin: 2.5em 0;
}
.story-img img {
  width: 100%;
  height: auto;
  display: block;
}
.story-img figcaption {
  margin-top: 0.8em;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--color-text-sub);
  text-align: center;
  font-style: italic;
}
.story-img--two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.story-img--two img {
  aspect-ratio: 1 / 1;
  object-fit: cover;
}
.story-img--four {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  align-items: start;
}
.story-img--four img {
  width: 100%;
  height: auto;
  /* no crop: preserve full image */
  aspect-ratio: auto;
  object-fit: contain;
}

/* Dialogue */
.dialog {
  margin: 0 0 1.8em;
}
.dialog__speaker {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--color-text-sub);
  margin: 0 0 0.5em;
  font-weight: 500;
  text-transform: uppercase;
}
.dialog__text {
  margin: 0;
  padding-left: 1em;
  border-left: 2px solid var(--color-border);
}
.dialog__text > p {
  margin: 0 0 1em;
}
.dialog__text > p:last-child {
  margin-bottom: 0;
}

/* Quote */
.story-quote {
  margin: 2em 0;
  padding: 1.5em 1.8em;
  background: var(--color-bg-sub);
  border-left: 3px solid #bbb;
}
.story-quote p {
  margin: 0 0 0.8em;
  font-style: normal;
  font-size: 0.94em;
}
.story-quote__tag {
  display: inline-block;
  margin-left: 0.4em;
  font-weight: 600;
  color: var(--color-text);
}
.story-quote footer {
  font-size: 0.76rem;
  color: var(--color-text-sub);
  letter-spacing: 0.04em;
}
.story-quote footer a { color: inherit; }

/* Inline callout (quoted commentary) */
.story-callout {
  margin: 2em 0 !important;
  padding: 1.2em 1.5em;
  background: var(--color-bg-sub);
  font-size: 0.95em;
  line-height: 2;
  border-radius: 0;
}

/* Closing */
.story__body--closing {
  margin-top: 5rem;
  padding-top: 3rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
}
.story__body--closing > p {
  font-size: clamp(0.9rem, 1.5vw, 1.05rem);
  line-height: 2.2;
}

/* SP adjustments */
@media (max-width: 767px) {
  .story-hero {
    padding: 4rem 1.5rem 3rem;
  }
  .story {
    padding: 3rem 0 4rem;
  }
  .story__chapter {
    margin: 4rem auto 1.5rem;
    padding: 2.5rem 1.5rem 0;
  }
  .dialog__text {
    padding-left: 0.8em;
  }
  .story-img--two,
  .story-img--four {
    gap: 6px;
  }
}

/* ========================================
   5.5 SERIES (photo nav: 4 products)
   ======================================== */
.series {
  padding: 64px 0;
  background: var(--color-bg-sub);
}
.series__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.series__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem 1rem;
}
.series__grid--3 {
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem 0.7rem;
}
.series__card {
  display: block;
  text-align: center;
  color: var(--color-text);
  transition: transform 0.3s;
}
.series__card:hover {
  transform: translateY(-3px);
}
.series__img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #fff;
  margin-bottom: 0.7rem;
}
.series__name {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(0.8rem, 1.3vw, 0.95rem);
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--color-text);
  margin: 0;
}

@media (min-width: 768px) {
  .series {
    padding: 96px 0;
  }
  .series__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
  .series__grid--3 {
    grid-template-columns: repeat(3, 1fr);
    max-width: 780px;
    margin: 0 auto;
  }
}

/* ========================================
   9.5 ALSO (related products — legacy, unused)
   ======================================== */
.also {
  padding: 64px 0;
  background: var(--color-bg-sub);
  text-align: center;
}
.also__inner {
  max-width: var(--narrow-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.also__list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.also__item a {
  display: inline-block;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--color-text);
  padding: 0.5em 0;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s, opacity 0.25s;
}
.also__item a:hover {
  border-bottom-color: var(--color-text);
  opacity: 0.7;
}

@media (min-width: 768px) {
  .also {
    padding: 96px 0;
  }
  .also__list {
    flex-direction: row;
    justify-content: center;
    gap: 3rem;
  }
  .also__item a {
    font-size: 1.05rem;
  }
}

/* ========================================
   9.8 FAQ (Accordion via <details>)
   ======================================== */
.faq {
  padding: 80px 0;
  background: var(--color-bg);
}
.faq__inner {
  max-width: var(--narrow-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.faq__item {
  border-bottom: 1px solid var(--color-border);
}
.faq__item:first-of-type {
  border-top: 1px solid var(--color-border);
}
.faq__q {
  position: relative;
  padding: 1.3rem 2.5rem 1.3rem 1.6rem;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(0.92rem, 1.5vw, 1.02rem);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  line-height: 1.7;
  transition: color 0.2s;
}
.faq__q::-webkit-details-marker { display: none; }
.faq__q::before {
  content: "Q";
  display: inline-block;
  font-weight: 400;
  margin-right: 0.8rem;
  color: var(--color-text-sub);
  letter-spacing: 0.1em;
}
.faq__q::after {
  content: "";
  position: absolute;
  right: 1rem;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 1.5px solid var(--color-text);
  border-bottom: 1.5px solid var(--color-text);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.3s;
}
.faq__item[open] .faq__q::after {
  transform: translateY(-30%) rotate(-135deg);
}
.faq__q:hover {
  color: var(--color-text);
  opacity: 0.65;
}
.faq__a {
  padding: 0 1.6rem 1.5rem 3.1rem;
  font-size: clamp(0.84rem, 1.3vw, 0.92rem);
  line-height: 2;
  color: var(--color-text-body);
  letter-spacing: 0.04em;
}
.faq__a p { margin-bottom: 1em; }
.faq__a p:last-child { margin-bottom: 0; }
.faq__a strong {
  font-weight: 600;
  color: var(--color-text);
}

@media (min-width: 768px) {
  .faq { padding: 112px 0; }
  .faq__q {
    padding: 1.6rem 3rem 1.6rem 2rem;
  }
  .faq__a {
    padding: 0 2rem 1.8rem 3.8rem;
  }
}

/* ========================================
   10. FOOTER
   ======================================== */
.footer {
  background: #f5f5f5;
  padding: 3rem 1.5rem 2rem;
  border-top: 1px solid var(--color-border);
}
.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}
.footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}
.footer__links a {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--color-text-sub);
  transition: color 0.2s;
}
.footer__links a:hover { color: var(--color-text); }
.footer__copy {
  font-size: 0.72rem;
  color: var(--color-text-mute);
  letter-spacing: 0.05em;
}

/* ========================================
   PC (768px+)
   ======================================== */
@media (min-width: 768px) {
  .nav__links { display: flex; }
  .nav__hamburger { display: none; }

  .core-concept__frame--chop,
  .core-concept__frame--plate {
    aspect-ratio: 16 / 9;
    min-height: 480px;
  }
  .core-concept__frame--logo {
    padding: 8rem 2rem;
  }
  .core-concept__overlay {
    width: 50%;
    max-width: 720px;
  }

  .feature-block {
    flex-direction: row-reverse;
    align-items: stretch;
    padding: 56px 0;
  }
  .feature-image { min-height: 280px; }
  .feature-image img { height: 100%; object-fit: cover; }
  .feature-body { padding: 52px 44px; }

  .lineup-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem 2rem;
  }

  .gallery__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .hero__sound-btn {
    right: 32px;
    bottom: 32px;
    padding: 12px 20px;
    font-size: 0.8rem;
  }
}

/* ========================================
   Large screens (1200px+)
   ======================================== */
@media (min-width: 1200px) {
  .nav__logo img { height: 38px; }
}