/* Full-screen age gate in the light room (EC-01, 2026-10-28): the Hero's studio and its product
   cutout as two backgrounds, placed exactly as the Hero frame places them (background-position
   p with cover equals the frame's left = p * (100vw - frame width)), under a quiet ink veil.
   Backgrounds are only fetched while the gate is shown, never for a visitor who has answered. */
.agegate {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  background:
    url('../images/hero/hero_product.webp') 68.5% 50% / cover no-repeat,
    url('../images/hero/hero_bg.webp') 68.5% 50% / cover no-repeat,
    var(--surface-ink);
  color: var(--color-canvas);
}
.agegate::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(28, 28, 28, 0.32);
  pointer-events: none;
}
.agegate__inner {
  position: relative;
  width: 100%;
  min-width: 0;
  max-width: calc(480px + var(--page-gutter) * 2);
  padding: 0 var(--page-gutter);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-22);
}
.agegate .heading-sm {
  font-size: var(--text-heading-sm);
  font-weight: var(--weight-display-heading);
  line-height: var(--leading-heading-sm);
}
/* After いいえ the product and the room leave; the refusal stands on the plain ink surface. */
.agegate:has([data-age-denied]:not([hidden])) {
  background: var(--surface-ink);
}
.agegate__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-14);
  margin-top: var(--spacing-14);
}
@media (max-width: 767px) {
  .agegate {
    align-items: flex-start;
    background:
      url('../images/hero/hero-sp_product.webp') 66% 50% / cover no-repeat,
      url('../images/hero/hero-sp_bg.webp') 66% 50% / cover no-repeat,
      var(--surface-ink);
  }
  .agegate__inner {
    padding: 14vh var(--page-gutter-sp) 0;
  }
}

.duos-document {
  padding: var(--spacing-144) 0 var(--band-gap);
  background: var(--surface-canvas);
}
.form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-22);
  max-width: 560px;
}
.form__row {
  display: flex;
  flex-direction: column;
  gap: var(--element-gap);
}
.form__input {
  font: inherit;
  color: var(--color-ink);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-ink);
  padding: var(--spacing-10) 0;
  border-radius: 0;
}
.form__input:focus {
  outline: none;
  border-bottom-color: #000000;
}
.faq {
  margin: 0;
  max-width: 880px;
}
/* カテゴリごとのアコーディオン。開閉の印はヘアライン2本で描く */
.faq__group + .faq__group {
  margin-top: var(--spacing-72);
}
.faq__category {
  margin: 0;
  padding-bottom: var(--spacing-14);
  border-bottom: 1px solid var(--color-ink);
}
.faq__item {
  border-bottom: 1px solid var(--color-graphite);
}
.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-22);
  padding: var(--spacing-22) 0;
  cursor: pointer;
  list-style: none;
}
.faq__question::-webkit-details-marker {
  display: none;
}
.faq__question:focus-visible {
  outline: 1px solid var(--color-ink);
  outline-offset: 4px;
}
.faq__icon {
  position: relative;
  flex: 0 0 14px;
  height: 14px;
}
.faq__icon::before,
.faq__icon::after {
  content: '';
  position: absolute;
  inset: 50% 0 auto;
  height: 1px;
  background: var(--color-ink);
  transition: transform var(--duration-base) var(--ease-out);
}
.faq__icon::after {
  transform: rotate(90deg);
}
.faq__item[open] .faq__icon::after {
  transform: rotate(0deg);
}
.faq__answer {
  padding: 0 0 var(--spacing-29);
  display: flex;
  flex-direction: column;
  gap: var(--element-gap);
}
.faq__item[open] .faq__answer {
  animation: duos-faq-open var(--duration-base) var(--ease-out);
}
@keyframes duos-faq-open {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .faq__icon::before,
  .faq__icon::after { transition: none; }
  .faq__item[open] .faq__answer { animation: none; }
}

.table--legal th[scope='row'] {
  width: 260px;
  vertical-align: top;
}
.legal__line {
  display: block;
}
.legal__line + .legal__line {
  margin-top: var(--element-gap);
}
@media (max-width: 767px) {
  .table--legal,
  .table--legal tbody,
  .table--legal tr,
  .table--legal th,
  .table--legal td {
    display: block;
    width: auto;
  }
  .table--legal tr {
    padding: var(--spacing-16) 0;
    border-bottom: 1px solid var(--color-graphite);
  }
  .table--legal th,
  .table--legal td {
    border-bottom: none;
    padding: 0;
  }
  .table--legal td {
    margin-top: var(--element-gap);
  }
}

/* よくある質問。機種ごとの値を左右に並べて見比べられるようにする */
.faq__models {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-43);
}
.faq__model {
  display: flex;
  flex-direction: column;
  gap: var(--element-gap);
  padding-top: var(--spacing-10);
  border-top: 1px solid var(--color-graphite);
}
@media (max-width: 767px) {
  .faq__models {
    grid-template-columns: 1fr;
    gap: var(--spacing-16);
  }
}
.legal-doc {
  max-width: 760px;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-14);
}
.legal-doc .subheading {
  margin-top: var(--spacing-29);
}
.legal-doc__p {
  margin: 0;
}
.legal-doc__strong {
  margin: var(--spacing-6) 0 0;
  font-weight: var(--weight-semibold);
  font-size: var(--text-body);
}
.legal-doc__list {
  margin: 0;
  padding-left: 1.6em;
  list-style: decimal;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
  font-size: var(--text-body);
  line-height: var(--leading-body);
}
.legal-doc__list--sub {
  margin-top: var(--spacing-6);
}
.agegate__body span { display: block; }
.agegate__actions .pill { white-space: nowrap; }
.agegate[hidden], .agegate [hidden] { display: none !important; }
.agegate { overflow-y: auto; overscroll-behavior: contain; }
.agegate [data-age-question] { display: flex; flex-direction: column; gap: var(--spacing-22); }
.agegate p { margin: 0; }
.agegate .pill--inverted:hover { color: var(--color-canvas); border-color: var(--color-canvas); }
body.duos-site:not(.duos-home) .site-header { padding: 0; margin: 0; border: 0; background: var(--surface-canvas); }
body.duos-site:not(.duos-home) #masthead .nav { position: relative; }
body.duos-site #colophon { padding: 0; background: var(--surface-ink); }
body.duos-site #colophon > .col-full { max-width: none; margin: 0; padding: 0; }
.duos-root .form__input { box-shadow: none; }
.duos-root .table--legal:not(.has-background) tbody tr th,
.duos-root .table--legal:not(.has-background) tbody tr td { background: transparent; }
.duos-root .form .pill:disabled { color: var(--color-graphite); border-color: var(--color-graphite); cursor: default; }
@media (max-width: 767px) {
  .duos-document { padding: var(--spacing-72) 0; }
  .duos-root .table--legal { font-size: var(--text-caption); }
  .duos-root .table--legal th[scope='row'] { width: auto; }
  .duos-root .table--legal th, .duos-root .table--legal td { padding: 0; border-bottom: none; }
}
@media (max-width: 767px) {
  .agegate__actions .pill { padding-inline: var(--spacing-14); }
}
@media (max-width: 374px) {
  .agegate__actions .pill { padding-inline: var(--spacing-10); }
}
@media (max-height: 420px) {
  .agegate { align-items: flex-start; padding-block: var(--spacing-22); }
}
/* Outside the product canvas, in the page gutter. */
.duos-back-top {
  position: fixed; left: 14px; bottom: calc(14px + env(safe-area-inset-bottom));
  z-index: 41; width: 48px; height: 48px; padding: 3px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  border: 1px solid #fff; border-radius: 9999px;
  color: #fff; background: #1c1c1c; box-shadow: none;
  font: 11px/1.2 var(--font-text); cursor: pointer;
}
.duos-back-top span:first-child { font-size: 18px; }
/* Phones: keep the control off the left-aligned copy that sits low in pinned sections. */
@media (max-width: 767px) {
  .duos-back-top { left: auto; right: 14px; }
}
.duos-back-top[hidden] { display: none; }
.duos-back-top:hover { background: #ececec; color: #1c1c1c; }
.duos-back-top:focus-visible { outline: 2px solid #1c1c1c; outline-offset: 3px; }

/* Page frames for the third phase (EC-16 to EC-20). Paper surfaces stand in for content to come. */
.frame__lead {
  max-width: 640px;
  margin: var(--spacing-22) 0 var(--spacing-72);
}
.frame__section + .frame__section {
  margin-top: var(--spacing-72);
}
.frame__section .heading-sm {
  margin: 0 0 var(--spacing-22);
}
.frame__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-43) var(--spacing-29);
  margin: 0;
  padding: 0;
  list-style: none;
}
.frame__card,
.frame__cardLink {
  display: flex;
  flex-direction: column;
  gap: var(--element-gap);
}
.frame__cardLink {
  color: inherit;
  text-decoration: none;
}
.frame__cardLink:hover .frame__title {
  text-decoration: underline;
  text-underline-offset: 2px;
}
.frame__image,
.frame__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  border-radius: var(--radius-cards);
  background: var(--surface-paper);
  object-fit: cover;
}
.frame__image {
  aspect-ratio: 4 / 3;
}
.frame__logo {
  aspect-ratio: 3 / 2;
}
.frame__logo img {
  max-width: 60%;
  max-height: 60%;
  object-fit: contain;
}
.frame__title {
  margin: 0;
}
.frame__external {
  margin-top: var(--spacing-7);
  color: var(--color-ink);
  font-size: var(--text-caption);
  font-weight: var(--weight-medium);
}
.frame__external[aria-disabled='true'] {
  color: var(--color-graphite);
}
.frame__externalNote {
  margin-left: var(--spacing-4);
  color: var(--color-graphite);
  font-weight: var(--weight-regular);
}
.frame__list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--color-graphite);
  list-style: none;
}
.frame__row {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr) auto;
  gap: var(--spacing-22);
  align-items: baseline;
  padding: var(--spacing-22) 0;
  border-bottom: 1px solid var(--color-graphite);
}
.frame__rowBody {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}
.frame__hero {
  display: block;
  width: 100%;
  height: auto;
  margin: var(--spacing-29) 0;
  border-radius: var(--radius-cards);
}
.frame__content {
  max-width: 720px;
}
@media (max-width: 767px) {
  .frame__grid {
    grid-template-columns: 1fr;
  }
  .frame__row {
    grid-template-columns: 1fr;
    gap: var(--spacing-7);
  }
}