.hero-preview {
  position: relative;
  min-height: max(760px, 100svh);
  display: block;
  padding-top: var(--header-h);
  overflow: hidden;
  isolation: isolate;
  background: var(--color-white);
  color: var(--color-white);
}

.hero-preview::before,
.hero-preview::after {
  position: absolute;
  z-index: -1;
  content: "";
  pointer-events: none;
}

.hero-preview::before {
  inset: var(--header-h) 0 0;
  background: rgba(0, 67, 119, 0.2);
}

.hero-preview::after {
  inset: var(--header-h) 30% 0 0;
  background: rgba(0, 71, 149, 0.1);
  clip-path: polygon(0 0, 100% 0, 76% 100%, 0 100%);
}

.hero-photo {
  position: absolute;
  z-index: -2;
  inset: var(--header-h) 0 0;
  width: auto;
  height: auto;
  margin: 0;
  overflow: hidden;
  background: #8ab7d6;
}

.hero-photo img {
  width: min(100%, 2350px);
  height: 100%;
  display: block;
  margin-inline: auto;
  object-fit: cover;
  object-position: 54% 45%;
  filter: saturate(1.08) contrast(1.03);
  animation: hero-image-in var(--duration-hero) var(--ease-standard) both;
}

.hero-preview-inner {
  position: relative;
  width: min(calc(100% - 64px), 2320px);
  max-width: none;
  min-height: calc(max(760px, 100svh) - var(--header-h));
  margin-inline: auto;
  padding: clamp(32px, 3.8vh, 58px) 0 clamp(176px, 10.8vw, 220px) 50px;
}

.hero-technical-scale {
  position: absolute;
  z-index: 2;
  top: calc(var(--header-h) + clamp(78px, 10vh, 118px));
  bottom: 172px;
  left: clamp(12px, 2vw, 32px);
  width: 36px;
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  align-items: start;
  border-left: 1px solid rgba(142, 210, 244, 0.42);
  color: rgba(255, 255, 255, 0.72);
  font-family: var(--font-mono);
}

.hero-technical-scale::before,
.hero-technical-scale::after {
  position: absolute;
  left: -13px;
  width: 25px;
  height: 1px;
  background: rgba(142, 210, 244, 0.42);
  content: "";
}

.hero-technical-scale::before {
  top: 0;
}

.hero-technical-scale::after {
  bottom: 0;
}

.hero-scale-number {
  position: relative;
  padding: 14px 0 0 12px;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.hero-scale-number::before {
  position: absolute;
  top: 19px;
  left: -1px;
  width: 7px;
  height: 1px;
  background: rgba(142, 210, 244, 0.42);
  content: "";
}

.hero-scale-caption {
  position: absolute;
  bottom: 8px;
  left: 16px;
  color: rgba(255, 255, 255, 0.38);
  font-size: 7px;
  line-height: 1;
  letter-spacing: 0.14em;
  white-space: nowrap;
  transform: rotate(-90deg);
  transform-origin: left bottom;
}

.hero-heading-block {
  position: relative;
  max-width: min(1200px, 70vw);
  padding: 0;
  border: 0;
  background: transparent;
  animation: hero-copy-in var(--duration-hero) var(--ease-standard) 100ms both;
}

.hero-kicker {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 0;
  color: rgba(255, 255, 255, 0.92);
  font-family: var(--font-display);
  font-size: clamp(13px, 0.8vw, 18px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.11em;
}

.hero-kicker span {
  width: 28px;
  height: 2px;
  display: block;
  background: var(--color-orange-500);
}

.hero-duration-feature {
  display: flex;
  align-items: flex-end;
  width: fit-content;
  margin-top: clamp(12px, 2vh, 22px);
  color: var(--color-orange-500);
  line-height: 0.78;
}

.hero-duration-number {
  font-family: var(--font-numeric);
  font-size: clamp(154px, 11vw, 260px);
  font-weight: 800;
  letter-spacing: 0;
}

.hero-duration-unit {
  margin: 0 0 0.16em 0.05em;
  font-family: var(--font-jp);
  font-size: clamp(38px, 4.2vw, 92px);
  font-weight: 900;
  line-height: 1;
}

.hero-duration-note {
  margin: 0 0 0.55em 18px;
  color: rgba(255, 255, 255, 0.62);
  font-family: var(--font-display);
  font-size: clamp(13px, 0.72vw, 16px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.12em;
}

.preview-hero-title {
  margin: clamp(12px, 2vh, 22px) 0 0;
  color: var(--color-white);
  font-family: var(--font-jp);
  font-size: clamp(57px, 5.4vw, 116px);
  font-weight: 900;
  line-height: 1.07;
  letter-spacing: 0;
  text-shadow: 0 2px 20px rgba(7, 24, 39, 0.32);
}

.preview-hero-title .line {
  display: block;
}

.preview-hero-title .line + .line {
  margin-top: 0.08em;
}

.preview-hero-title .emphasis {
  color: var(--color-white);
  font-weight: 900;
  text-decoration: none;
}

.hero-mobile-visual {
  display: contents;
}

.hero-mobile-photo {
  display: none;
}

.hero-circle-label {
  position: absolute;
  z-index: 2;
  right: clamp(24px, 5vw, 78px);
  bottom: 190px;
  width: clamp(132px, 10vw, 196px);
  aspect-ratio: 1;
  display: grid;
  place-content: center;
  gap: 7px;
  margin: 0;
  border: 1px solid var(--color-sky-500);
  border-radius: 50%;
  color: var(--color-navy-900);
  background: rgba(255, 255, 255, 0.9);
  text-align: center;
  font-size: clamp(16px, 1vw, 21px);
  line-height: 1.35;
}

.hero-circle-label::before,
.hero-circle-label::after {
  position: absolute;
  border: 1px solid rgba(69, 174, 232, 0.72);
  border-radius: 50%;
  content: "";
  inset: 5px;
}

.hero-circle-label::after {
  inset: -5px;
  border-color: rgba(69, 174, 232, 0.42);
}

.hero-circle-label span,
.hero-circle-label strong {
  display: block;
}

.hero-circle-label strong {
  font-weight: 800;
}

.hero-copy-block {
  max-width: 900px;
  margin-top: clamp(14px, 2vh, 24px);
}

.preview-hero-lead {
  margin: 0;
  color: rgba(255, 255, 255, 0.9);
  font-family: var(--font-jp);
  font-size: clamp(19px, 1.15vw, 24px);
  font-weight: 500;
  line-height: 1.8;
  text-shadow: 0 1px 12px rgba(7, 24, 39, 0.42);
}

.preview-hero-lead strong {
  color: var(--color-white);
  font-weight: 700;
}

.hero-eligibility {
  margin: 13px 0 0;
  color: var(--color-white);
  font-size: clamp(18px, 0.9vw, 19px);
  font-weight: 700;
  line-height: 1.4;
}

.hero-eligibility span {
  margin-right: 10px;
  color: var(--color-orange-400);
  font-family: var(--font-mono);
  font-size: clamp(13px, 0.68vw, 15px);
  letter-spacing: 0.1em;
}

.hero-bottom-deck {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  min-height: clamp(168px, 11vw, 220px);
  display: grid;
  grid-template-columns: minmax(350px, 1.8fr) minmax(500px, 2.45fr) minmax(250px, 1.15fr);
  align-items: stretch;
  border-top: 1px solid var(--color-line);
  background: var(--color-sky-50);
}

.hero-benefits {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-right: 1px solid var(--color-line);
  list-style: none;
}

.hero-benefit-item {
  min-width: 0;
  display: grid;
  align-content: center;
  padding: 22px clamp(12px, 1.6vw, 24px);
  border-left: 1px solid var(--color-line);
}

.hero-benefit-item:first-child {
  border-left: 0;
}

.hero-benefit-index {
  color: var(--color-navy-900);
  font-family: var(--font-mono);
  font-size: clamp(13px, 0.72vw, 16px);
  font-weight: 600;
}

.hero-benefit-item p {
  margin: 12px 0 0;
  color: var(--color-ink);
  font-size: clamp(18px, 1.05vw, 22px);
  font-weight: 700;
  line-height: 1.55;
}

.preview-spec-list {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1.15fr) minmax(0, 1.25fr);
  gap: 0;
  align-items: stretch;
  margin: 0;
  padding: 0;
  border: 0;
}

.preview-spec-item,
.preview-spec-item:nth-child(odd) {
  min-width: 0;
  display: grid;
  align-content: center;
  padding: 22px clamp(10px, 1.3vw, 20px);
  border-left: 1px solid var(--color-line);
}

.preview-spec-item:first-child {
  border-left: 0;
}

.preview-spec-label {
  color: var(--color-slate);
  font-family: var(--font-display);
  font-size: clamp(16px, 0.85vw, 18px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.04em;
}

.preview-spec-value {
  margin: 11px 0 0;
  color: var(--color-ink);
  font-family: var(--font-numeric);
  font-size: clamp(40px, 2.55vw, 58px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0;
  white-space: nowrap;
}

.preview-spec-item:first-child .preview-spec-value {
  font-size: clamp(30px, 2.4vw, 48px);
}

.preview-spec-value small {
  display: block;
  margin: 7px 0 0;
  color: var(--color-slate);
  font-family: var(--font-jp);
  font-size: clamp(12px, 0.7vw, 15px);
  font-weight: 600;
  line-height: 1.2;
}

.preview-spec-item:last-child .preview-spec-value {
  font-family: var(--font-jp);
  font-size: clamp(18px, 1.4vw, 30px);
  font-weight: 700;
  line-height: 1.25;
  white-space: normal;
  text-wrap: balance;
}

.hero-actions {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 0;
  margin: 0;
  background: var(--color-orange-600);
}

.hero-button {
  min-height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding-inline: 18px;
  border: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.34);
  color: var(--color-ink);
  font-family: var(--font-jp);
  font-size: clamp(18px, 0.95vw, 20px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.02em;
  text-align: center;
  white-space: normal;
  transition:
    color var(--duration-base) var(--ease-standard),
    background var(--duration-base) var(--ease-standard);
}

.hero-button.primary {
  gap: 14px;
  border-top: 0;
  background: var(--color-orange-600);
  color: var(--color-action-ink);
}

.hero-button:not(.primary) {
  margin: 0 18px 14px;
  min-height: 56px;
  align-self: end;
  border: 1px solid var(--color-navy-900);
  background: var(--color-white);
  color: var(--color-navy-900);
}

.hero-button.primary span {
  transition: transform var(--duration-base) var(--ease-standard);
}

.hero-button.primary:hover,
.hero-button.primary:focus-visible {
  background: var(--color-navy-900);
  color: var(--color-white);
}

.hero-button.primary:hover span,
.hero-button.primary:focus-visible span {
  transform: translateX(5px);
}

.hero-button:not(.primary):hover,
.hero-button:not(.primary):focus-visible {
  background: var(--color-navy-900);
  color: var(--color-white);
}

@keyframes hero-copy-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes hero-image-in {
  from {
    opacity: 0.76;
    transform: scale(1.02);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@media (max-width: 1240px) {
  .hero-preview-inner {
    width: min(calc(100% - 48px), 2320px);
    padding-left: 42px;
  }

  .hero-bottom-deck {
    min-height: 156px;
    grid-template-columns: minmax(300px, 1.5fr) minmax(450px, 2.25fr) minmax(230px, 1.15fr);
  }

  .preview-spec-item,
  .preview-spec-item:nth-child(odd) {
    padding-inline: 6px;
  }

  .hero-circle-label {
    right: 28px;
  }
}

@media (max-width: 980px) {
  .hero-preview {
    min-height: 0;
    padding-top: var(--header-h);
    background: var(--color-white);
  }

  .hero-preview::before,
  .hero-preview::after,
  .hero-photo,
  .hero-technical-scale {
    display: none;
  }

  .hero-preview-inner {
    width: 100%;
    min-height: 0;
    padding: 0;
  }

  .hero-mobile-visual {
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    isolation: isolate;
    background: #0c659b;
  }

  .hero-mobile-visual::after {
    position: absolute;
    z-index: -1;
    content: "";
    inset: 0;
    pointer-events: none;
    background: rgba(0, 67, 119, 0.28);
  }

  .hero-heading-block {
    z-index: 1;
    max-width: none;
    padding: clamp(36px, 7vw, 64px) clamp(24px, 6vw, 52px) clamp(30px, 5vw, 46px);
  }

  .hero-kicker {
    color: rgba(255, 255, 255, 0.92);
  }

  .hero-duration-note {
    color: rgba(255, 255, 255, 0.74);
  }

  .hero-duration-number {
    font-size: clamp(102px, 18vw, 154px);
  }

  .hero-duration-unit {
    font-size: clamp(36px, 6vw, 54px);
  }

  .preview-hero-title {
    max-width: 820px;
    font-size: clamp(48px, 7.4vw, 57px);
    color: var(--color-white);
    text-shadow: 0 2px 20px rgba(7, 24, 39, 0.38);
  }

  .preview-hero-title .emphasis {
    color: var(--color-white);
  }

  .hero-mobile-photo {
    position: absolute;
    z-index: -2;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    margin: 0;
    overflow: hidden;
    background: #9bcbe5;
  }

  .hero-mobile-photo img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: 54% 46%;
  }

  .hero-circle-label {
    right: clamp(20px, 5vw, 44px);
    bottom: clamp(154px, 24vw, 196px);
    width: clamp(116px, 18vw, 148px);
  }

  .hero-copy-block {
    position: relative;
    z-index: 1;
    max-width: none;
    margin: 0;
    padding: clamp(28px, 5vw, 42px) clamp(24px, 6vw, 52px);
    background: transparent;
  }

  .preview-hero-lead {
    font-size: clamp(16px, 2.25vw, 19px);
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 12px rgba(7, 24, 39, 0.42);
  }

  .preview-hero-lead strong,
  .hero-eligibility {
    color: var(--color-white);
  }

  .hero-eligibility span {
    color: var(--color-orange-400);
  }

  .hero-eligibility {
    font-size: clamp(16px, 2.1vw, 18px);
  }

  .hero-bottom-deck {
    position: static;
    min-height: 0;
    grid-template-columns: 1fr;
    border-top-color: var(--color-line);
  }

  .hero-benefits {
    min-height: 148px;
    border-right: 0;
    border-bottom: 1px solid var(--color-line);
    background: transparent;
  }

  .preview-spec-list {
    min-height: 150px;
    background: transparent;
  }

  .hero-benefit-item p {
    font-size: clamp(16px, 2.15vw, 18px);
  }

  .preview-spec-label {
    font-size: clamp(16px, 2.05vw, 18px);
  }

  .preview-spec-value {
    font-size: clamp(39px, 5.1vw, 40px);
  }

  .hero-button {
    font-size: clamp(16px, 2.15vw, 18px);
  }

  .hero-actions {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    padding: 0;
    background: var(--color-orange-600);
  }

  .hero-button {
    width: 100%;
    min-height: 64px;
    margin: 0;
    border: 0;
  }

  .hero-button:not(.primary) {
    width: calc(100% - 32px);
    min-height: 56px;
    margin: 0 16px 14px;
    border: 1px solid var(--color-navy-900);
    background: var(--color-white);
    color: var(--color-navy-900);
  }
}

@media (max-width: 640px) {
  .hero-heading-block {
    padding: 28px 20px 26px;
  }

  .hero-kicker {
    gap: 8px;
    font-size: 13px;
    letter-spacing: 0.07em;
  }

  .hero-kicker span {
    width: 20px;
  }

  .hero-duration-feature {
    margin-top: 14px;
  }

  .hero-duration-number {
    font-size: clamp(96px, 27vw, 112px);
  }

  .hero-duration-unit {
    margin-bottom: 0.12em;
    font-size: clamp(38px, 10.5vw, 44px);
  }

  .hero-duration-note {
    max-width: 112px;
    margin: 0 0 0.4em 10px;
    font-size: 13px;
    line-height: 1.35;
  }

  .preview-hero-title {
    margin-top: 18px;
    font-size: clamp(40px, 10.8vw, 48px);
    line-height: 1.1;
  }

  .hero-mobile-photo {
    height: 100%;
    min-height: 0;
  }

  .hero-mobile-photo img {
    object-position: 56% 45%;
  }

  .hero-circle-label {
    position: relative;
    right: auto;
    bottom: auto;
    width: 104px;
    align-self: flex-end;
    gap: 4px;
    margin: -6px 20px 24px 0;
    font-size: 16px;
  }

  .hero-copy-block {
    padding: 26px 20px 28px;
  }

  .preview-hero-lead {
    font-size: 16px;
    line-height: 1.82;
  }

  .hero-eligibility {
    font-size: 16px;
  }

  .hero-benefits {
    min-height: 148px;
  }

  .hero-benefit-item {
    padding: 18px 10px;
  }

  .hero-benefit-item p {
    margin-top: 9px;
    font-size: 16px;
    line-height: 1.5;
  }

  .preview-spec-list {
    min-height: 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .preview-spec-item,
  .preview-spec-item:nth-child(odd) {
    min-height: 126px;
    padding: 18px 14px;
    border-top: 1px solid var(--color-line);
    border-left: 1px solid var(--color-line);
  }

  .preview-spec-item:nth-child(odd) {
    border-left: 0;
  }

  .preview-spec-item:nth-child(-n + 2) {
    border-top: 0;
  }

  .preview-spec-value {
    font-size: clamp(39px, 5.1vw, 40px);
  }

  .preview-spec-label {
    font-size: 16px;
  }

  .preview-spec-value small {
    font-size: 13px;
  }

  .preview-spec-item:last-child .preview-spec-value {
    font-size: clamp(20px, 5.8vw, 24px);
  }

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

  .hero-button {
    font-size: 16px;
  }

  .hero-button.primary {
    border-top: 0;
    background: var(--color-orange-600);
    color: var(--color-action-ink);
  }

}