@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@600;700;800&family=Noto+Sans+JP:wght@400;500;700&family=Noto+Serif+JP:wght@500;600&display=swap");

.rf-lp {
  --rf-white: #ffffff;
  --rf-off-white: #fbfaf7;
  --rf-ivory: #f7f4ee;
  --rf-blue-tint: #f3f9fc;
  --rf-navy: #1a2435;
  --rf-text: #202632;
  --rf-muted: #6b7280;
  --rf-soft: #eef0f3;
  --rf-line: #e8eaee;
  --rf-copper: #b9854f;
  --rf-copper-dark: #8a633f;
  --rf-site-header-height: 57px;
  --rf-sticky-offset: 156px;
  --rf-font-ui: Montserrat, Inter, "Helvetica Neue", "Noto Sans JP", sans-serif;
  --rf-font-sans: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", "YuGothic", Meiryo, sans-serif;
  --rf-font-serif: "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
  color: var(--rf-text);
  background: var(--rf-white);
  font-family: var(--rf-font-sans);
  line-height: 1.82;
  letter-spacing: 0.025em;
  overflow-x: clip;
}

.rf-lp *,
.rf-lp *::before,
.rf-lp *::after {
  box-sizing: border-box;
}

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

.rf-lp a {
  color: inherit;
}

.rf-site-header {
  position: sticky;
  top: 0;
  z-index: 70;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid var(--rf-line);
  background: rgba(255, 255, 255, 0.96);
  padding: 14px 18px;
}

.rf-site-logo {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  text-decoration: none;
}

.rf-site-logo img {
  width: auto;
  height: 30px;
}

.rf-site-nav,
.rf-product-nav__links {
  display: flex;
  align-items: center;
  gap: 18px;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}

.rf-site-nav::-webkit-scrollbar,
.rf-product-nav__links::-webkit-scrollbar,
.rf-hero-models::-webkit-scrollbar {
  display: none;
}

.rf-site-nav a,
.rf-product-nav a {
  color: #555b66;
  font-family: var(--rf-font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-decoration: none;
}

.rf-site-nav a:hover,
.rf-product-nav a:hover {
  color: var(--rf-navy);
}

.rf-site-nav .rf-site-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  color: #111827;
  letter-spacing: 0;
}

.rf-site-icon svg {
  display: block;
  width: 18px;
  height: 18px;
}

.rf-site-icon rect,
.rf-site-icon circle,
.rf-site-icon path {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.rf-site-icon[aria-label="YouTube"] rect {
  fill: currentColor;
}

.rf-site-icon[aria-label="YouTube"] path {
  fill: #fff;
  stroke: none;
}

.rf-product-nav {
  position: sticky;
  top: var(--rf-site-header-height);
  z-index: 60;
  display: grid;
  gap: 10px;
  border-bottom: 1px solid var(--rf-line);
  background: var(--rf-white);
  padding: 12px 18px;
  backdrop-filter: blur(14px);
}

.rf-product-nav__title {
  color: var(--rf-navy) !important;
  font-size: 0.92rem !important;
}

.rf-hero {
  position: relative;
  background: var(--rf-white);
  padding: 0;
  overflow: hidden;
}

.rf-hero::before {
  content: none;
}

.rf-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
  max-width: 1180px;
  margin: 0 auto;
}

.rf-eyebrow,
.rf-kicker {
  margin: 0 0 12px;
  color: #111827;
  font-family: var(--rf-font-ui);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.rf-hero h1,
.rf-section h2,
.rf-final-cta h2 {
  margin: 0;
  color: var(--rf-navy);
  font-family: var(--rf-font-serif);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: 0.04em;
}

.rf-hero h1 {
  max-width: 12em;
  font-size: clamp(1.7rem, 5vw, 3.1rem);
}

.rf-hero__lead {
  max-width: 25em;
  margin: 14px 0 0;
  color: var(--rf-navy);
  font-size: 0.98rem;
  font-weight: 600;
}

.rf-hero__sub {
  margin: 10px 0 0;
  color: var(--rf-muted);
  font-size: 0.94rem;
}

.rf-hero__visual {
  position: relative;
}

.rf-hero-picture {
  display: block;
}

.rf-hero__visual img {
  width: 100%;
  height: auto;
  border-radius: 0;
  object-fit: contain;
  object-position: center;
}

.rf-hero__overlay {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  min-height: 560px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 48px 18px;
}

.rf-hero__overlay .rf-btn {
  width: fit-content;
  margin-top: 22px;
}

.rf-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 20px 0 0;
  list-style: none;
}

.rf-labels li {
  border: 1px solid rgba(185, 133, 79, 0.35);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  padding: 6px 11px;
  color: var(--rf-copper-dark);
  font-size: 0.76rem;
  font-weight: 600;
}

.rf-actions {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.rf-btn,
.rf-link-btn,
.rf-purchase-toggle {
  display: inline-flex;
  position: relative;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: 4px;
  padding: 11px 18px;
  font-family: var(--rf-font-ui);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.4;
  text-decoration: none;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.rf-btn:hover,
.rf-link-btn:hover,
.rf-purchase-toggle:hover {
  transform: translateY(-1px);
}

.rf-btn--primary,
.rf-purchase-toggle {
  border: 1px solid #c18a52;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0) 42%),
    linear-gradient(180deg, #c89154 0%, var(--rf-copper) 58%, #9f7041 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.38),
    inset 0 -2px 0 rgba(86, 54, 27, 0.16),
    0 8px 16px rgba(138, 99, 63, 0.2);
  color: #fff !important;
  text-shadow: 0 1px 1px rgba(67, 38, 18, 0.28);
}

.rf-btn--primary:hover,
.rf-purchase-toggle:hover {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0) 42%),
    linear-gradient(180deg, #d19a60 0%, #bd8650 58%, #96683e 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.42),
    inset 0 -2px 0 rgba(86, 54, 27, 0.18),
    0 10px 18px rgba(138, 99, 63, 0.24);
}

.rf-btn--secondary {
  border: 1px solid var(--rf-line);
  background: var(--rf-white);
  color: var(--rf-navy);
}

.rf-link-btn {
  width: fit-content;
  min-height: 0;
  margin-top: 12px;
  padding: 0;
  color: var(--rf-muted);
  font-size: 0.9rem;
}

.rf-hero-models {
  position: relative;
  z-index: 1;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(230px, 1fr);
  gap: 12px;
  max-width: 1180px;
  margin: 24px auto 0;
  overflow-x: auto;
  padding: 0 0 4px;
  scroll-snap-type: x mandatory;
}

.rf-mini-card {
  scroll-snap-align: start;
  border: 1px solid var(--rf-line);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.86);
  padding: 15px;
  text-decoration: none;
}

.rf-mini-card span,
.rf-model-card__tag {
  color: var(--rf-copper-dark);
  font-family: var(--rf-font-ui);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.rf-mini-card strong,
.rf-mini-card em {
  display: block;
  font-style: normal;
}

.rf-mini-card strong {
  margin-top: 6px;
  color: var(--rf-navy);
  line-height: 1.5;
}

.rf-mini-card em {
  margin-top: 4px;
  color: var(--rf-muted);
  font-size: 0.82rem;
}

.rf-section {
  scroll-margin-top: var(--rf-sticky-offset);
  background: var(--rf-white);
  padding: 64px 18px;
}

.rf-hero,
.rf-final-cta,
.rf-model-card,
.rf-choice-card {
  scroll-margin-top: var(--rf-sticky-offset);
}

.rf-choose,
.rf-safety,
.rf-brand {
  background: var(--rf-off-white);
}

.rf-section__head,
.rf-media-block,
.rf-feature-grid,
.rf-choice-grid,
.rf-model-grid,
.rf-scene-grid,
.rf-table-wrap,
.rf-faq-list,
.rf-brand {
  max-width: 1120px;
  margin-right: auto;
  margin-left: auto;
}

.rf-section__head {
  margin-bottom: 24px;
}

.rf-section h2,
.rf-final-cta h2 {
  font-size: clamp(1.62rem, 4.9vw, 2.58rem);
}

.rf-section__head p:not(.rf-kicker),
.rf-media-block p,
.rf-final-cta p {
  max-width: 680px;
  color: var(--rf-muted);
  line-height: 1.9;
}

.rf-feature-grid,
.rf-choice-grid,
.rf-model-grid,
.rf-scene-grid {
  display: grid;
  gap: 14px;
}

.rf-design-media {
  display: grid;
  gap: 14px;
  max-width: 1120px;
  margin: 0 auto 24px;
}

.rf-design-media figure {
  margin: 0;
  background: var(--rf-off-white);
}

.rf-design-media img {
  width: 100%;
  height: 100%;
  aspect-ratio: 3 / 2;
  border-radius: 3px;
  object-fit: cover;
}

.rf-design-points {
  max-width: 1120px;
  margin: 0 auto;
}

.rf-design-points img {
  width: 100%;
  height: auto;
  border-radius: 3px;
}

.rf-feature-grid article,
.rf-choice-card,
.rf-model-card,
.rf-brand-card {
  border: 1px solid var(--rf-line);
  border-radius: 3px;
  background: var(--rf-white);
}

.rf-feature-grid article,
.rf-choice-card,
.rf-brand-card {
  padding: 20px;
}

.rf-feature-grid h3,
.rf-choice-card h3,
.rf-model-card h3,
.rf-brand-card h3 {
  margin: 0 0 8px;
  color: var(--rf-navy);
  font-family: var(--rf-font-sans);
  font-weight: 700;
  line-height: 1.45;
}

.rf-feature-grid p,
.rf-choice-card p,
.rf-model-card p,
.rf-brand-card p {
  margin: 0;
  color: var(--rf-muted);
}

.rf-media-block {
  display: grid;
  gap: 28px;
}

.rf-media-block figure,
.rf-model-card figure,
.rf-scene-grid figure {
  margin: 0;
}

.rf-media-block img,
.rf-model-card img,
.rf-scene-grid img {
  width: 100%;
  border-radius: 3px;
  object-fit: cover;
}

.rf-media-block img {
  aspect-ratio: 4 / 3;
}

.rf-cooling .rf-media-block figure {
  display: flex;
  justify-content: center;
}

.rf-media-block img.rf-cooling__image {
  max-width: 420px;
  aspect-ratio: auto;
  object-fit: contain;
}

.rf-cooling-note {
  border-left: 2px solid var(--rf-copper);
  margin-top: 18px;
  padding-left: 14px;
  color: var(--rf-navy) !important;
  font-weight: 650;
}

.rf-cooling-note small,
.rf-note {
  display: block;
  color: var(--rf-muted);
  font-size: 0.78rem;
  font-weight: 400;
}

.rf-compare > .rf-note {
  max-width: 1120px;
  margin: 14px auto 0;
  padding: 0;
}

.rf-choice-card {
  text-decoration: none;
}

.rf-choice-card span {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--rf-copper-dark);
  font-size: 0.82rem;
  font-weight: 700;
}

.rf-section-cta {
  max-width: 1120px;
  margin: 26px auto 0;
}

.rf-section-cta .rf-btn {
  width: fit-content;
}

.rf-model-card {
  overflow: hidden;
}

.rf-model-card figure {
  background: var(--rf-off-white);
}

.rf-model-card img {
  aspect-ratio: 4 / 5;
}

.rf-model-card img.rf-model-card__image--square {
  aspect-ratio: 1 / 1;
}

.rf-model-card__body {
  padding: 18px;
}

.rf-model-card ul {
  padding-left: 1.1em;
  margin: 14px 0 0;
}

.rf-actions--stack {
  grid-template-columns: 1fr;
}

.rf-purchase-toggle {
  width: 100%;
  margin-top: 18px;
  cursor: pointer;
}

.rf-purchase-panel {
  margin-top: 10px;
}

.rf-scene-grid {
  grid-template-columns: repeat(2, 1fr);
}

.rf-scene-grid img {
  aspect-ratio: 1 / 1;
}

.rf-scene-grid figcaption {
  margin-top: 8px;
  color: var(--rf-navy);
  font-family: var(--rf-font-sans);
  font-weight: 700;
}

#rf-safety .rf-safety-visual {
  width: min(100%, 1120px);
  max-width: 1120px;
  margin: 0 auto;
  padding: 0;
}

#rf-safety .rf-safety-visual img {
  width: 100%;
  height: auto;
  border-radius: 3px;
}

.rf-scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 1120px;
  padding: 0;
  margin: 22px auto 0;
  list-style: none;
}

.rf-scene-tags li {
  border: 1px solid var(--rf-line);
  border-radius: 999px;
  background: var(--rf-white);
  padding: 7px 12px;
  color: var(--rf-muted);
  font-size: 0.84rem;
}

.rf-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--rf-line);
  border-radius: 3px;
  background: var(--rf-white);
}

.rf-table {
  width: 100%;
  min-width: 860px;
  border-collapse: collapse;
}

.rf-table th,
.rf-table td {
  border-bottom: 1px solid var(--rf-line);
  font-family: var(--rf-font-sans);
  padding: 14px;
  text-align: left;
  vertical-align: top;
}

.rf-table thead th {
  background: var(--rf-off-white);
  color: var(--rf-navy);
  font-weight: 700;
}

.rf-table tbody th {
  width: 150px;
  color: var(--rf-navy);
}

.rf-table a {
  color: var(--rf-copper-dark);
  font-weight: 700;
}

.rf-faq-list {
  display: grid;
  gap: 10px;
}

.rf-faq-item {
  border: 1px solid var(--rf-line);
  border-radius: 3px;
  background: var(--rf-white);
}

.rf-faq-item button {
  position: relative;
  width: 100%;
  border: 0;
  background: transparent;
  padding: 18px 44px 18px 18px;
  color: var(--rf-navy);
  font-family: var(--rf-font-sans);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.65;
  text-align: left;
  cursor: pointer;
}

.rf-faq-item button::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--rf-copper);
  font-size: 1.3rem;
}

.rf-faq-item button[aria-expanded="true"]::after {
  content: "-";
}

.rf-faq-panel {
  display: none;
  padding: 0 18px 18px;
  color: var(--rf-muted);
}

.rf-faq-item.is-open .rf-faq-panel {
  display: block;
}

.rf-brand {
  padding-top: 34px;
  padding-bottom: 34px;
  background: var(--rf-off-white);
}

.rf-brand-card--muted {
  background: var(--rf-off-white);
}

.rf-brand-footer {
  display: grid;
  gap: 14px;
  align-items: center;
  border: 1px solid var(--rf-line);
  border-radius: 3px;
  background: var(--rf-white);
  padding: 20px;
}

.rf-brand-footer .rf-kicker {
  margin: 0;
  white-space: nowrap;
}

.rf-brand-footer p:not(.rf-kicker) {
  margin: 0;
  color: var(--rf-muted);
  font-size: 0.95rem;
  line-height: 1.9;
}

.rf-brand-footer a {
  color: var(--rf-navy);
  font-family: var(--rf-font-ui);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  white-space: nowrap;
}

.rf-brand-footer a:hover {
  color: var(--rf-copper-dark);
}

.rf-final-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--rf-blue-tint);
  padding: 82px 18px;
  text-align: center;
}

#rf-online-shop > .rf-kicker,
#rf-online-shop > h2 {
  align-self: center;
  display: block;
  width: 100%;
  max-width: 1120px;
  margin-right: auto;
  margin-left: auto;
  text-align: center !important;
}

.rf-final-cta > * {
  max-width: 720px;
  margin-right: auto;
  margin-left: auto;
}

.rf-final-cta .rf-actions {
  max-width: 360px;
}

.rf-shop-grid {
  display: grid;
  gap: 14px;
  width: 100%;
  max-width: 1120px;
  margin: 34px auto 0;
  text-align: left;
}

.rf-shop-card {
  border: 1px solid var(--rf-line);
  border-radius: 3px;
  background: var(--rf-white);
  padding: 22px;
}

.rf-shop-card__use {
  margin: 0 0 8px;
  color: var(--rf-copper-dark);
  font-size: 0.82rem;
  font-weight: 700;
}

.rf-shop-card h3 {
  margin: 0;
  color: var(--rf-navy);
  font-family: var(--rf-font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.55;
}

.rf-shop-card__actions {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

@media (max-width: 767px) {
  .rf-site-header {
    align-items: center;
    flex-wrap: nowrap;
  }

  .rf-site-nav {
    min-width: 0;
    flex: 1;
  }

  .rf-hero {
    min-height: 0;
  }
}

@media (min-width: 640px) {
  .rf-actions {
    grid-template-columns: minmax(180px, 280px);
  }

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

  .rf-feature-grid--four {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .rf-site-header,
  .rf-product-nav {
    padding-right: 26px;
    padding-left: 26px;
  }

  .rf-product-nav {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
  }

  .rf-product-nav__links {
    justify-content: flex-end;
  }

  .rf-hero {
    padding: 0;
  }

  .rf-hero__inner {
    grid-template-columns: minmax(340px, 0.86fr) minmax(0, 1.14fr);
    align-items: center;
    min-height: 620px;
  }

  .rf-hero__visual {
    margin: 0;
  }

  .rf-hero__visual img {
    border-radius: 0;
  }

  .rf-hero-models {
    grid-auto-flow: initial;
    grid-template-columns: repeat(3, 1fr);
    overflow: visible;
  }

  .rf-section {
    padding: 82px 28px;
  }

  .rf-media-block {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .rf-design-media {
    margin-bottom: 30px;
  }

  .rf-media-block--reverse figure {
    order: 2;
  }

  .rf-model-grid {
    grid-template-columns: repeat(3, 1fr);
    align-items: stretch;
  }

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

  .rf-brand-footer {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 24px;
  }

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

@media (min-width: 1024px) {
  .rf-feature-grid--four {
    grid-template-columns: repeat(4, 1fr);
  }
}