@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;1,400&family=Lato:wght@300&family=Noto+Sans+JP:wght@300;400;500;700&family=Noto+Serif+JP:wght@400;500&display=swap');

:root {
  --color-bg: #F5F2ED;
  --color-bg-alt: #EDE8DF;
  --color-text: #2E2B27;
  --color-text-soft: #6B665D;
  --color-accent: #9C8574;
  --color-line: #D8D3C9;
  --color-white: #FFFFFF;
  --font-display: 'Cormorant Garamond', serif;
  --font-body: 'Noto Sans JP', sans-serif;
  --font-mincho: 'Noto Serif JP', serif;
  --ratio-w: 760;
  --ratio-h: 980;
}

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

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.9;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
}

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

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

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 見出し用フォント内の数字は必ずこのクラスで上書きする（JS側で自動付与） */
.num {
  font-family: 'Lato', sans-serif;
  font-weight: 400;
  letter-spacing: 0;
  vertical-align: baseline;
  line-height: 1;
}

.heading-lg .num,
.heading-md .num,
.fv__en .num {
  font-size: 0.9em;
  position: relative;
  top: -0.03em;
}

.eyebrow {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0.16em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 14px;
  display: inline-block;
}

.heading-lg {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 32px;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.heading-md {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 24px;
  line-height: 1.6;
}

.body-text {
  font-size: 15px;
  color: var(--color-text-soft);
  line-height: 2.1;
}

.section {
  padding: 88px 0;
  position: relative;
}

.section--alt {
  background: var(--color-bg-alt);
}

.divider {
  width: 100%;
  height: 24px;
  overflow: hidden;
}

.divider svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* ============ クーポンエリア ============ */
.coupon-area {
  padding: 32px 0;
  background: var(--color-text);
}

.coupon-area__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.coupon-area__card {
  text-align: center;
  padding: 22px 10px 24px;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.coupon-area__label {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 22px;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.coupon-area__label .num {
  color: var(--color-accent);
}

.coupon-area__main {
  font-size: 15px;
  color: var(--color-white);
  letter-spacing: 0.02em;
  margin-bottom: 6px;
}

.coupon-area__num {
  font-family: 'Lato', sans-serif;
  font-weight: 400;
  font-size: 24px;
  color: var(--color-white);
  margin: 0 2px;
}

.coupon-area__note {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.02em;
  margin-bottom: 14px;
}

.coupon-area__btn {
  display: inline-block;
  min-width: 120px;
  padding: 9px 20px;
  border: 1px solid var(--color-accent);
  color: var(--color-white);
  font-family: 'Lato', sans-serif;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.coupon-area__btn:hover {
  background: var(--color-accent);
}

/* placeholder image block: aspect ratio 760:980 */
.ph {
  position: relative;
  width: 100%;
  aspect-ratio: var(--ratio-w) / var(--ratio-h);
  background-color: #D4CBBB;
  background-image: linear-gradient(135deg, #E4DED2, #D4CBBB);
  background-size: cover;
  background-position: center;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ph::after {
  content: '';
}

.ph--wide {
  aspect-ratio: 4 / 3;
}

/* ============ FV / 共感 ============ */
.fv {
  padding: 0;
  min-height: 21vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  background: linear-gradient(180deg, #E9E3D8 0%, #F5F2ED 70%);
}

.fv__visual {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.fv__slide {
  position: absolute;
  inset: 0;
  background-color: #DCD3C2;
  background-image: linear-gradient(160deg, #DCD3C2, #C9BEAA);
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.4s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: rgba(46, 43, 39, 0.35);
}

.fv__slide::after {
  content: '';
}

.fv__slide.is-active {
  opacity: 1;
}

.fv__slide:nth-child(2) {
  background: linear-gradient(160deg, #D6CBB8, #BEB19B);
}

.fv__slide:nth-child(3) {
  background: linear-gradient(160deg, #E2D8C8, #CFC2AA);
}

.fv__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: rgba(245, 242, 237, 0.4);
}

.fv__body {
  position: relative;
  z-index: 2;
  padding: 32px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.fv__catch {
  font-family: var(--font-mincho);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text);
  margin-bottom: 10px;
}

.fv__en {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 40px;
  letter-spacing: 0.04em;
  color: var(--color-text);
  margin-bottom: 8px;
}

.fv__jp {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--color-text-soft);
}

/* ============ 提案する未来 / シリーズ紹介（統合） ============ */
.intro-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.intro-layout__media {
  width: 45%;
}

.intro-layout__media .ph {
  aspect-ratio: var(--ratio-w) / var(--ratio-h);
}

.intro-layout__body {
  text-align: center;
  max-width: 480px;
}

.center-block {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.series-copy {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 32px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  margin: 18px 0 28px;
}

.season-copy {
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

/* ============ 機能紹介 ============ */
.benefits {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px 24px;
}

.benefit-card {
  text-align: center;
  padding: 32px 16px;
  background: var(--color-white);
  border: 1px solid var(--color-line);
}

.benefit-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background-color: var(--color-bg-alt);
  background-size: 60%;
  background-repeat: no-repeat;
  background-position: center;
  border-radius: 50%;
}

.benefit-card__title {
  font-family: var(--font-display);
  font-size: 18px;
  margin-bottom: 8px;
}

.benefit-card__text {
  font-size: 12.5px;
  color: var(--color-text-soft);
  line-height: 1.9;
}

.note {
  font-size: 11.5px;
  color: var(--color-text-soft);
  border-top: 1px solid var(--color-line);
  padding-top: 14px;
  margin-top: 28px;
}

/* ============ 検査結果 ============ */
.test-report {
  position: relative;
}

.test-report__card {
  display: none;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  padding: 32px 24px;
  height: 380px;
  overflow: hidden;
}

.test-report__card.is-active {
  display: block;
}

.test-report__dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
}

.test-report__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: var(--color-line);
  padding: 0;
  cursor: pointer;
}

.test-report__dot.is-active {
  background: var(--color-accent);
}

.test-report__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 34px;
  height: 34px;
  border: 1px solid var(--color-line);
  background: var(--color-white);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.test-report__arrow--prev {
  left: -14px;
}

.test-report__arrow--next {
  right: -14px;
}

.test-report__arrow:hover {
  background: var(--color-bg-alt);
}

.test-report__title {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: 15px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-line);
}

.test-report__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 12.5px;
  color: var(--color-text-soft);
  padding: 8px 0;
  border-bottom: 1px dashed var(--color-line);
}

.test-report__row:last-of-type {
  border-bottom: none;
}

.test-report__value {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 16px;
  color: var(--color-accent);
}

.test-report__note {
  font-size: 11.5px;
  color: var(--color-text-soft);
  line-height: 1.9;
  margin-top: 14px;
}

/* ============ シーン提案 ============ */
.scenes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 12px;
}

.scene-card {
  display: flex;
  flex-direction: column;
}

.scene-card .ph {
  aspect-ratio: var(--ratio-w) / var(--ratio-h);
  position: relative;
}

.scene-card .ph::before {
  content: '';
  position: absolute;
  top: 10px;
  left: 10px;
  width: 22px;
  height: 22px;
  border-top: 1px solid var(--color-accent);
  border-left: 1px solid var(--color-accent);
}

.scene-card__body {
  padding: 14px 4px 0;
}

.scene-card__en {
  display: block;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.scene-card__title {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: 14px;
  margin-bottom: 6px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-line);
}

.scene-card__text {
  font-size: 11.5px;
  color: var(--color-text-soft);
  line-height: 1.8;
}

/* ============ 同シリーズの人気アイテム ============ */
.popular-series__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.popular-series__card {
  display: block;
  text-align: left;
}

.popular-series__card .ph {
  position: relative;
}

.popular-series__sales-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 24px 0 32px;
  text-align: center;
}

.popular-series__sales {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 17px;
  letter-spacing: 0.03em;
  color: var(--color-accent);
}

.popular-series__no {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--color-accent);
  letter-spacing: 0.06em;
  margin-top: 14px;
}

.popular-series__date {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 10.5px;
  color: var(--color-text-soft);
  letter-spacing: 0.04em;
  margin-left: 8px;
  padding: 2px 8px;
  border: 1px solid var(--color-line);
}

.popular-series__name {
  font-family: var(--font-mincho);
  font-size: 15px;
  margin: 6px 0 10px;
}

.popular-series__desc {
  font-size: 12.5px;
  color: var(--color-text-soft);
  line-height: 1.9;
  margin-bottom: 14px;
}

.popular-series__btn {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--color-text);
  padding-bottom: 2px;
}

/* ============ ラインナップ ============ */
.lineup-group-label {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: 15px;
  color: var(--color-text);
  text-align: center;
  padding-bottom: 10px;
  margin: 40px 0 20px;
  border-bottom: 1px solid var(--color-line);
}

.lineup-group-label:first-of-type {
  margin-top: 0;
}

.lineup-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px 10px;
}

.lineup-grid--half .lineup-card:last-child {
  grid-column: 2;
}

.lineup-card {
  text-align: left;
}

.lineup-card .ph {
  position: relative;
}

.lineup-card__badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--color-text);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 9px;
  letter-spacing: 0.06em;
  padding: 3px 7px;
}

.lineup-card__badge--sales {
  left: auto;
  right: 8px;
  background: var(--color-accent);
}

.lineup-card__no {
  font-family: var(--font-display);
  font-size: 11px;
  color: var(--color-accent);
  letter-spacing: 0.06em;
  margin-top: 10px;
}

.lineup-card__date {
  font-size: 10px;
  color: var(--color-text-soft);
  letter-spacing: 0.04em;
  margin-top: 2px;
}

.lineup-card__name {
  font-size: 11.5px;
  margin: 4px 0 8px;
  line-height: 1.5;
}

.lineup-card__btn {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--color-text);
  padding-bottom: 2px;
}

/* ============ 品番解説 ============ */
.product-detail {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-bottom: 1px solid var(--color-line);
  padding: 48px 0;
}

.product-detail:first-of-type {
  padding-top: 0;
}

.product-detail__body {
  padding-top: 24px;
}

.pd-slider {
  position: relative;
}

.pd-slider__slide {
  display: none;
}

.pd-slider__slide.is-active {
  display: flex;
}

.pd-slider__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 34px;
  height: 34px;
  border: 1px solid var(--color-line);
  background: var(--color-white);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pd-slider__arrow--prev {
  left: 10px;
}

.pd-slider__arrow--next {
  right: 10px;
}

.pd-slider__arrow:hover {
  background: var(--color-bg-alt);
}

.product-detail__no {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--color-accent);
  letter-spacing: 0.06em;
}

.product-detail__date {
  font-size: 12px;
  color: var(--color-text-soft);
  letter-spacing: 0.04em;
  margin-top: 4px;
}

.product-detail__name {
  font-family: var(--font-mincho);
  font-weight: 400;
  font-size: 22px;
  margin: 8px 0 16px;
}

.product-detail__desc {
  font-size: 13.5px;
  color: var(--color-text-soft);
  line-height: 2;
  margin-bottom: 20px;
}

.product-detail__row {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  padding: 10px 0;
  border-top: 1px solid var(--color-line);
}

.product-detail__row span:first-child {
  color: var(--color-text-soft);
  letter-spacing: 0.04em;
}

.product-detail__price {
  font-family: var(--font-display);
  font-size: 22px;
  margin: 18px 0;
}

.buy-btn {
  display: block;
  text-align: center;
  padding: 15px;
  background: var(--color-text);
  color: var(--color-white);
  font-size: 13px;
  letter-spacing: 0.1em;
}

/* ============ フッター ============ */
.lp-footer {
  text-align: center;
  padding: 56px 24px 40px;
  background: var(--color-bg-alt);
}

.lp-footer__logo {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 22px;
  letter-spacing: 0.08em;
  color: var(--color-text);
  margin-bottom: 10px;
}

.lp-footer__copyright {
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--color-text-soft);
}

/* ============ アニメーション ============ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ PC ============ */
@media (min-width: 768px) {
  .section { padding: 140px 0; }

  .coupon-area { padding: 44px 0; }
  .coupon-area__grid { max-width: 640px; margin: 0 auto; gap: 24px; }
  .coupon-area__label { font-size: 26px; }
  .coupon-area__main { font-size: 17px; }
  .coupon-area__num { font-size: 28px; }

  .fv { min-height: 42vh; }
  .fv__en { font-size: 64px; }
  .fv__catch { font-size: 20px; }
  .fv__jp { font-size: 13px; }

  .season-copy { font-size: 18px; }

  .intro-layout { flex-direction: row; align-items: center; gap: 64px; }
  .intro-layout__media { width: 42%; flex: 0 0 42%; }
  .intro-layout__body { text-align: left; max-width: none; }

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

  .test-report { max-width: 640px; margin: 0 auto; }
  .test-report__arrow--prev { left: -50px; }
  .test-report__arrow--next { right: -50px; }
  .scenes { grid-template-columns: repeat(3, 1fr); gap: 24px; }

  .popular-series__sales-row { flex-direction: row; justify-content: center; gap: 60px; }
  .popular-series__grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .lineup-grid { grid-template-columns: repeat(4, 1fr); }
  .lineup-grid--half .lineup-card:last-child { grid-column: auto; }

  .product-detail {
    flex-direction: row;
    gap: 56px;
    align-items: flex-start;
  }
  .product-detail__media { flex: 0 0 380px; }
  .product-detail__body { flex: 1; padding-top: 0; }
}