@charset "UTF-8";

:root {
  --navy: #003344;
  --navy-deep: #002c3c;
  --red: #c5482d;
  --gold: #d6a44e;
  --ink: #252525;
  --pale: #edf4f5;
  --cream: #f6f0e4;
  --white: #fff;
  --line: #aeb8b8;
  --shadow: 0 3px 8px rgb(0 47 62 / 12%);
  --content: 700px;
  --ease-out-expo: cubic-bezier(.16, 1, .3, 1);
  --font-serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", "Times New Roman", serif;
  --font-sans: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html { scroll-padding-top: 20px; }
body.menu-open { overflow: hidden; }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
body {
  margin: 0;
  color: var(--ink);
  background: #dfe7e9;
  font-family: var(--font-serif);
  font-size: clamp(14px, 3.7vw, 18px);
  line-height: 1.75;
}
img { display: block; width: 100%; height: auto; }
.hero__pc,
.contact-buttons--hero-pc,
.pc-section-assets,
.sec3__tabs,
.pc-navigation { display: none; }

/* JavaScriptで付与し、画面に入った画像から順番に1度だけ表示する */
img.image-reveal {
  opacity: 0;
  transform: translateY(22px) scale(.985);
  transition:
    opacity 1.5s var(--ease-out-expo),
    transform 1.5s var(--ease-out-expo);
  transition-delay: var(--image-reveal-delay, 0ms);
}
img.image-reveal.is-visible {
  opacity: 1;
  transform: none;
}
html.motion-off img.image-reveal {
  opacity: 1;
  transform: none;
  transition: none;
}

.motion-toggle {
  position: fixed;
  right: 12px;
  bottom: 12px;
  z-index: 100;
  display: none;
  padding: .55rem .75rem;
  border: 1px solid rgb(255 255 255 / 55%);
  border-radius: 4px;
  color: #fff;
  background: rgb(0 44 60 / 92%);
  font: 12px/1.3 var(--font-sans);
  cursor: pointer;
}

@media (prefers-reduced-motion: reduce) {
  .motion-toggle { display: block; }
}

a { color: inherit; }
.site-header,
main,
.footer {
  width: min(100%, 750px);
  margin-inline: auto;
}
.site-header { position: relative; background: var(--white); }
.site-header__inner img { aspect-ratio: 750 / 133; object-fit: contain; }
.menu-toggle {
  position: fixed;
  top: 12px;
  right: max(12px, calc((100vw - 750px) / 2 + 12px));
  z-index: 1002;
  display: grid;
  place-content: center;
  width: clamp(50px, 14vw, 64px);
  height: clamp(50px, 14vw, 64px);
  padding: 8px 10px 6px;
  border: 1px solid rgb(255 255 255 / 45%);
  border-radius: 50%;
  color: #fff;
  background: rgb(0 44 60 / 94%);
  box-shadow: 0 3px 12px rgb(0 0 0 / 22%);
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  margin: 2px auto;
  background: currentColor;
  transition: transform .3s ease, opacity .2s ease;
}
.menu-toggle b {
  margin-top: 2px;
  font: 700 8px/1 var(--font-sans);
  letter-spacing: .08em;
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1000;
  visibility: hidden;
  opacity: 0;
  background: rgb(0 22 30 / 58%);
  transition: opacity .3s ease, visibility .3s ease;
}
.global-menu {
  position: fixed;
  top: 0;
  right: max(0px, calc((100vw - 750px) / 2));
  bottom: 0;
  z-index: 1001;
  width: min(82vw, 390px);
  overflow-y: auto;
  padding: 78px clamp(22px, 6vw, 34px) 30px;
  color: #fff;
  background: #002c3c;
  box-shadow: -8px 0 24px rgb(0 0 0 / 24%);
  visibility: hidden;
  transform: translateX(105%);
  transition: transform .38s var(--ease-out-expo), visibility .38s ease;
  font-family: var(--font-sans);
}
body.menu-open .menu-backdrop { visibility: visible; opacity: 1; }
body.menu-open .global-menu { visibility: visible; transform: translateX(0); }
.global-menu__head { padding-bottom: 18px; border-bottom: 1px solid rgb(255 255 255 / 35%); }
.global-menu__head p { margin: 0; font-size: 12px; line-height: 1.6; }
.global-menu__head strong { font-family: var(--font-serif); font-size: 20px; letter-spacing: .12em; }
.global-menu ul { margin: 12px 0 22px; padding: 0; list-style: none; }
.global-menu li { border-bottom: 1px solid rgb(255 255 255 / 18%); }
.global-menu li a { display: block; padding: 12px 3px; font-size: 15px; text-decoration: none; }
.global-menu li a::after { content: "›"; float: right; color: var(--gold); }
.global-menu a:focus-visible,
.menu-toggle:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }
.global-menu__tel,
.global-menu__online {
  display: block;
  padding: 12px;
  border-radius: 999px;
  color: #222;
  background: var(--gold);
  text-align: center;
  font-size: 12px;
  line-height: 1.3;
  text-decoration: none;
}
.global-menu__tel strong { font-size: 20px; letter-spacing: .08em; }
.global-menu__online {
  margin-top: 10px;
  background: #f5865f;
  font-weight: 700;
}
.global-menu__online small {
  font-size: 10px;
  font-weight: 400;
}
.global-menu__legal { display: flex; flex-wrap: wrap; gap: 8px 14px; margin-top: 20px; font-size: 11px; }
.global-menu__legal a { text-decoration: underline; text-underline-offset: 3px; }
.back-to-top {
  position: fixed;
  right: max(14px, calc((100vw - 750px) / 2 + 14px));
  bottom: 18px;
  z-index: 900;
  display: grid;
  place-content: center;
  width: 54px;
  height: 54px;
  border: 1px solid rgb(255 255 255 / 55%);
  border-radius: 50%;
  color: #fff;
  background: rgb(0 44 60 / 92%);
  box-shadow: 0 3px 12px rgb(0 0 0 / 22%);
  text-align: center;
  text-decoration: none;
  font-family: var(--font-sans);
  line-height: 1;
}
.back-to-top span { font-size: 20px; }
.back-to-top small { margin-top: 2px; font-size: 8px; letter-spacing: .08em; }
.back-to-top:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }
.hero__photo { aspect-ratio: 750 / 396; object-fit: cover; }
.hero__message { position: relative; background: var(--navy); }
.hero__message > img { aspect-ratio: 750 / 954; }
.contact-button {
  display: block;
  width: min(88%, 631px);
  margin: 1.4rem auto 0;
  transition: transform .2s ease, filter .2s ease;
}
.contact-buttons {
  position: absolute;
  left: 50%;
  width: 84%;
  transform: translateX(-50%);
}
.contact-buttons--hero { bottom: 5.5%; }
.contact-buttons--cta { bottom: 5.5%; }
.contact-buttons .contact-button {
  width: 100%;
  margin: 0;
}
.contact-button:focus-visible { outline: 4px solid var(--white); outline-offset: 4px; }
.contact-button:hover { filter: brightness(1.06); }
.contact-buttons .contact-button:hover { transform: scale(1.02); }
.content { width: min(91%, var(--content)); margin-inline: auto; }
.section { padding: 4.2rem 0; }
.section--pale { background: var(--pale); }
.section--white { background: var(--white); }
.section--pattern {
  background-color: #f8f5eb;
  background-image: radial-gradient(circle at 20% 10%, rgb(211 171 51 / 16%) 0 2px, transparent 3px);
  background-size: 48px 48px;
}
.section-title {
  margin: 0 0 1.7rem;
  text-align: center;
  font-size: clamp(26px, 7.3vw, 42px);
  line-height: 1.35;
  letter-spacing: .12em;
  font-weight: 700;
}
.lead {
  margin: 0 0 2.1rem;
  text-align: center;
  font-size: 1.15em;
  letter-spacing: .12em;
}
.lead--small { margin-top: 1.4rem; }
.section-intro { text-align: center; margin: -1rem 0 2.5rem; }
.placeholder {
  display: grid;
  place-items: center;
  margin: 1.7rem 0;
  min-height: 230px;
  color: #fff;
  background: linear-gradient(135deg, #9dafb0, #647d80);
  font-family: var(--font-sans);
  letter-spacing: .12em;
}
.placeholder span {
  padding: .35rem .7rem;
  border: 1px solid rgb(255 255 255 / 60%);
  background: rgb(0 44 60 / 36%);
}
.placeholder--photo { aspect-ratio: 1.44 / 1; }
.placeholder--wide { min-height: 180px; aspect-ratio: 1.8 / 1; }
.placeholder--product { aspect-ratio: 1.5 / 1; }
.placeholder--map { min-height: 330px; background: #d9d9d9; color: #222; }
.question-title {
  margin: 3.8rem 0 1.8rem;
  text-align: center;
  font-size: 1.2em;
  line-height: 1.35;
}
.check-list { margin: 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding: .65rem 0 .65rem 2.1rem; }
.check-list li::before {
  position: absolute;
  top: .72rem;
  left: 0;
  width: 1.25rem;
  height: 1.25rem;
  content: "✓";
  border: 2px solid #333;
  font: 700 1rem/1 var(--font-sans);
}
.promise {
  margin: 3.8rem 0 0;
  padding-top: 2.6rem;
  text-align: center;
  border-top: 1px solid #cfdbdc;
  letter-spacing: .08em;
}
.body-copy { text-align: left; }

.image-section {
  overflow: hidden;
  background: var(--white);
}
.image-section > img {
  display: block;
  width: 100%;
  min-height: 1px;
}
.image-section--sec1 {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(34px, 7vw, 56px);
  padding: clamp(48px, 9vw, 76px) 0 clamp(52px, 10vw, 84px);
  background: #eff3f4;
}
.image-section--sec1 > .image-section--sec1__part--1 {
  width: min(89.87%, 674px);
}
.image-section--sec1 > .image-section--sec1__part--2 {
  width: min(89.74%, 673px);
}
.image-section--sec1 > .image-section--sec1__part--3 {
  width: min(78.14%, 586px);
}
.image-cta {
  position: relative;
  overflow: hidden;
  background: var(--navy-deep);
}
.sec3 {
  overflow: hidden;
  padding: clamp(45px, 8vw, 72px) 0 clamp(55px, 10vw, 90px);
  background-image: url("../images/sec3_background.webp");
  background-position: center top;
  background-repeat: no-repeat;
  background-size: cover;
  background-attachment: fixed;
}
.sec3__title {
  display: block;
  width: 86.4%;
  margin: 0 auto clamp(34px, 7vw, 58px);
}
.sec3__title img { width: 100%; }
.sec3__product {
  margin: 0 0 clamp(50px, 10vw, 86px);
}
.sec3__product--tai,
.sec3__product--card {
  width: min(93.34%, 700px);
  margin-right: auto;
  margin-left: auto;
  padding: clamp(20px, 4vw, 34px) 0 clamp(24px, 5vw, 40px);
  background: #fff;
}
.sec3__item {
  display: block;
  width: min(90%, 675px);
  margin: 0 auto clamp(18px, 3.5vw, 28px);
}
.sec3__item > img { width: 100%; }
.sec3__item--tai {
  width: min(93.72%, 656px);
  margin-bottom: clamp(18px, 4vw, 30px);
}
.sec3__item--hamo {
  width: min(93.86%, 657px);
  margin-bottom: clamp(18px, 4vw, 30px);
}
.sec3__item--fugu {
  width: min(93.72%, 656px);
  margin-bottom: clamp(18px, 4vw, 30px);
}
.sec3__accordion,
.tai-accordion {
  width: 89.1%;
  margin: 0 auto;
}
.tai-accordion {
  overflow: hidden;
  position: relative;
  z-index: 1;
  width: min(93.86%, 657px);
}
.product-accordion--wide {
  width: min(95.43%, 668px);
}
.tai-accordion__summary {
  position: relative;
  display: block;
  cursor: pointer;
  list-style: none;
}
.tai-accordion__summary::-webkit-details-marker {
  display: none;
}
.tai-accordion__summary::marker {
  display: none;
  content: "";
}
.tai-accordion__summary:focus-visible {
  outline: 3px solid var(--navy);
  outline-offset: 4px;
}
.tai-accordion__summary img {
  width: 100%;
}
.tai-accordion__icon {
  position: absolute;
  top: 50%;
  right: clamp(12px, 3.5vw, 28px);
  color: #fff;
  font: 700 clamp(15px, 4vw, 24px)/1 var(--font-sans);
  transform: translateY(-50%);
  transition: transform .45s var(--ease-out-expo);
}
.tai-accordion[open] .tai-accordion__icon {
  transform: translateY(-50%) rotate(180deg);
}
.tai-accordion__body {
  margin-top: 0;
  padding: clamp(25px, 6vw, 46px) clamp(14px, 4vw, 30px) clamp(34px, 8vw, 64px);
  border: 0;
  border-top: 1px solid #d4d7d8;
  background: #f6f7f7;
  font-family: var(--font-sans);
  animation: accordionBodyIn .55s var(--ease-out-expo);
}
@keyframes accordionBodyIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: none; }
}
.tai-detail + .tai-detail {
  margin-top: clamp(44px, 10vw, 76px);
}
.tai-detail > h3 {
  margin: 0 0 clamp(24px, 6vw, 42px);
  padding-bottom: .55rem;
  border-bottom: 2px solid var(--navy);
  color: var(--navy);
  font-family: var(--font-serif);
  text-align: center;
  font-size: clamp(22px, 6vw, 34px);
  line-height: 1.4;
  letter-spacing: .08em;
}
.tai-detail__card {
  display: flex;
  flex-direction: column;
  margin: 0 0 clamp(34px, 8vw, 58px);
}
.tai-detail__card > div:not(.tai-detail__gallery) {
  display: contents;
}
.tai-detail__card:last-child {
  margin-bottom: 0;
}
.tai-detail__card img {
  order: 2;
  width: min(100%, 450px);
  margin: 0 auto 1rem;
}
.tai-detail__gallery {
  order: 2;
  display: grid;
  gap: .75rem;
  margin-bottom: 1rem;
}
.tai-detail__gallery img {
  margin-bottom: 0;
}
.tai-detail__card h4 {
  order: 1;
  margin: 0 0 .65rem;
  padding-left: .8rem;
  border-left: 5px solid var(--gold);
  font-family: var(--font-serif);
  font-size: clamp(17px, 4.5vw, 23px);
  line-height: 1.45;
}
.tai-detail__card p {
  order: 3;
  margin: 0;
  font-size: clamp(13px, 3.5vw, 17px);
  line-height: 1.9;
  text-align: left;
}
.sec3__note {
  display: block;
  width: 82.7%;
  margin: 0 auto;
}
.sec3__note img { width: 100%; }

.contact-band {
  padding: 3rem 0 2.3rem;
  color: var(--white);
  background-color: var(--navy-deep);
  background-image: repeating-linear-gradient(135deg, transparent 0 24px, rgb(17 92 107 / 32%) 25px 27px);
}
.contact-band h2 { margin: 0 0 1rem; font-size: 1.3em; line-height: 1.45; letter-spacing: .08em; }
.contact-band p { margin: 0; font-size: .9em; }
.product { margin: 0 0 4.4rem; }
.product__number { margin: 0; text-align: center; font-size: .95em; }
.product h3 {
  margin: -.1rem 0 1rem;
  padding-bottom: .45rem;
  text-align: center;
  border-bottom: 1px solid #888;
  font-size: 1.65em;
  line-height: 1.2;
}
.product a {
  display: flex;
  justify-content: center;
  gap: 1rem;
  padding: .55rem 1rem;
  color: var(--white);
  background: #686868;
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: .9em;
}
.product-note { text-align: center; font-weight: 700; }
.sec4 {
  overflow: hidden;
  padding: clamp(52px, 10vw, 84px) 0 clamp(58px, 11vw, 94px);
  background: #eff3f4;
}
.sec4__heading {
  display: block;
  width: min(59.07%, 443px);
  margin: 0 auto clamp(36px, 7vw, 58px);
}
.sec4__heading img { width: 100%; }
.sec4__socials {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: min(4vw, 30px);
  width: 100%;
}
.sec4__social {
  flex: 0 0 auto;
  color: var(--ink);
  text-align: center;
  text-decoration: none;
  font-family: var(--font-sans);
}
.sec4__social:focus-visible {
  outline: 3px solid var(--navy);
  outline-offset: 5px;
}
.sec4__social--facebook,
.sec4__social--x {
  width: min(24%, 180px);
}
.sec4__social--line {
  width: min(24.8%, 186px);
}
.sec4__social img {
  width: 100%;
  margin: 0 auto clamp(8px, 2vw, 14px);
}
.sec4__social p {
  margin: 0;
  font-size: clamp(13px, 3.7vw, 19px);
  line-height: 1.45;
}
.sec4__social small {
  font-size: .9em;
}
.sec5 {
  overflow: hidden;
  padding: clamp(58px, 11vw, 92px) 0 clamp(64px, 12vw, 102px);
  background: #fff;
}
.sec5__heading {
  display: block;
  width: min(57.47%, 431px);
  margin: 0 auto clamp(42px, 8vw, 68px);
}
.sec5__heading img { width: 100%; }
.sec5__list {
  width: min(91.47%, 686px);
  margin: 0 auto;
}
.sec5__item {
  overflow: hidden;
  margin: 0 0 clamp(14px, 3vw, 24px);
}
.sec5__summary {
  position: relative;
  display: block;
  cursor: pointer;
  list-style: none;
}
.sec5__summary::-webkit-details-marker { display: none; }
.sec5__summary::marker { content: ""; }
.sec5__summary:focus-visible {
  outline: 3px solid var(--navy);
  outline-offset: 3px;
}
.sec5__summary img { width: 100%; }
.sec5__summary picture { display: block; }
.sec5__toggle {
  position: absolute;
  top: 50%;
  right: clamp(14px, 3.5vw, 26px);
  color: #333;
  font: 400 clamp(25px, 6vw, 38px)/1 var(--font-sans);
  transform: translateY(-50%);
}
.sec5__item[open] .sec5__toggle { font-size: 0; }
.sec5__item[open] .sec5__toggle::after {
  content: "−";
  font-size: clamp(25px, 6vw, 38px);
}
.sec5__answer {
  display: flex;
  flex-direction: column;
  width: calc(100% - clamp(16px, 4vw, 30px));
  margin: clamp(-14px, -1.8vw, -7px) auto 0;
  padding: clamp(24px, 5vw, 40px);
  border: 0;
  background: #f6f7f7;
  font-family: var(--font-sans);
  animation: accordionBodyIn .55s var(--ease-out-expo);
}
.sec5__answer > div {
  display: contents;
}
.sec5__answer > img {
  order: 2;
  width: min(100%, 250px);
  margin: 0 auto clamp(18px, 4vw, 30px);
}
.sec5__answer h3 {
  order: 1;
  margin: 0 0 .8rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(17px, 4.5vw, 23px);
  line-height: 1.65;
}
.sec5__answer p {
  order: 3;
  margin: 0 0 .8rem;
  font-size: clamp(13px, 3.5vw, 17px);
  line-height: 1.9;
  text-align: left;
}
.sec5__answer p:last-child { margin-bottom: 0; }
.sec6 {
  overflow: hidden;
  padding: clamp(52px, 10vw, 84px) 0 clamp(68px, 13vw, 110px);
  background-color: #f8f8f6;
  background-image: url("../images/sec6_background.webp");
  background-position: center top;
  background-repeat: repeat-y;
  background-size: 100% auto;
  background-attachment: fixed;
}
.sec6__map {
  width: min(86.67%, 650px);
  margin: 0 auto clamp(44px, 9vw, 74px);
  font-family: var(--font-sans);
  text-align: center;
}
.sec6__map iframe {
  display: block;
  width: 100%;
  aspect-ratio: 650 / 420;
  border: 0;
  background: #d0d0d0;
}
.sec6__heading {
  display: block;
  width: min(31.47%, 236px);
  margin: 0 auto clamp(40px, 8vw, 66px);
}
.sec6__heading img { width: 100%; }
.sec6__guide {
  display: block;
  width: min(94%, 705px);
  margin-right: auto;
  margin-left: auto;
}
.sec6__guide img { width: 100%; }
.sec6__guide--public {
  margin-bottom: clamp(48px, 10vw, 82px);
}
.sec7 {
  overflow: hidden;
  padding: clamp(56px, 11vw, 88px) 0 clamp(68px, 13vw, 104px);
  background: var(--white);
}
.sec7__heading {
  display: block;
  width: min(35.87%, 269px);
  margin: 0 auto clamp(36px, 7vw, 58px);
}
.sec7__heading img { width: 100%; }
.sec7__content { display: contents; }
.sec7__photo,
.sec7__table {
  width: min(89.2%, 669px);
  margin-right: auto;
  margin-left: auto;
}
.sec7__photo {
  margin-bottom: clamp(34px, 7vw, 54px);
}
.sec7__table {
  border-collapse: collapse;
  table-layout: fixed;
  font-family: var(--font-sans);
  font-size: clamp(12px, 3.2vw, 16px);
  line-height: 1.75;
}
.sec7__table th,
.sec7__table td {
  padding: clamp(10px, 2.7vw, 18px) clamp(8px, 2.4vw, 16px);
  border-top: 1px solid #b8a89c;
  vertical-align: top;
  text-align: left;
}
.sec7__table tr:last-child th,
.sec7__table tr:last-child td {
  border-bottom: 1px solid #b8a89c;
}
.sec7__table th {
  width: 27%;
  color: #333;
  background: #f4f1ec;
  font-weight: 700;
}
.sec7__table td { background: #fff; }
.sec7__table a {
  text-decoration-line: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: .22em;
}
.sec7__table a:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}
.footer {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--white);
  background: #252525;
  font-family: var(--font-sans);
  font-size: .8em;
}
.copyright { margin: .8rem 0 0; }

@media (min-width: 751px) {
  body { font-size: 18px; }
  .site-header,
  main,
  .footer { box-shadow: 0 0 40px rgb(0 35 46 / 18%); }
}

@media (min-width: 900px) {
  :root { --content: 1100px; }
  body { min-width: 900px; background: #fff; font-size: 16px; }
  .site-header,
  main,
  .footer { width: 100%; max-width: 2000px; box-shadow: none; }
  .site-header { overflow: hidden; }
  .site-header__inner { position: relative; }
  .site-header__inner picture,
  .site-header__inner img { display: block; width: 100%; aspect-ratio: 2000 / 111; object-fit: cover; }
  .site-header__inner picture {
    transform: translateX(-125px) scale(1.12);
    transform-origin: center center;
  }
  .pc-navigation {
    position: absolute;
    top: 0;
    right: max(32px, calc((100% - 1100px) / 2));
    bottom: 0;
    display: none;
    align-items: center;
    gap: clamp(14px, 1.35vw, 27px);
    font-family: var(--font-sans);
    font-size: 16px;
    white-space: nowrap;
  }
  .pc-navigation a {
    position: relative;
    color: #292929;
    text-decoration: none;
  }
  .pc-navigation a::after {
    position: absolute;
    right: 0;
    bottom: -7px;
    left: 0;
    height: 1px;
    content: "";
    background: var(--red);
    transform: scaleX(0);
    transition: transform .25s ease;
  }
  .pc-navigation a:hover::after,
  .pc-navigation a:focus-visible::after { transform: scaleX(1); }
  .pc-navigation a:focus-visible { outline: 2px solid var(--gold); outline-offset: 6px; }
  .menu-toggle { right: 18px; }
  .global-menu { right: 0; }
  .back-to-top { right: 24px; bottom: 24px; }

  .hero {
    position: relative;
    width: 100%;
    height: 720px;
    overflow: hidden;
  }
  .hero__sp { display: none; }
  .hero__pc {
    position: relative;
    left: 50%;
    display: block;
    width: 2000px;
    max-width: none;
    height: 720px;
    object-fit: contain;
    transform: translateX(-50%);
  }
  .hero__pc.image-reveal {
    transform: translateX(-50%) translateY(22px) scale(.985);
  }
  .hero__pc.image-reveal.is-visible,
  html.motion-off .hero__pc.image-reveal {
    transform: translateX(-50%);
  }
  .contact-buttons--hero-pc {
    position: absolute;
    bottom: 7%;
    left: calc(50% + 30px);
    display: grid;
    gap: 10px;
    width: 360px;
    transform: none;
  }
  .contact-buttons--hero-pc .contact-button { width: 100%; margin: 0; }

  .pc-section-assets { display: flex; flex-direction: column; align-items: center; margin-inline: auto; }
  .image-section--sec1 { gap: 0; padding: 105px 40px 96px; }
  .image-section--sec1 > img { display: none; }
  .pc-section-assets--sec1 { gap: 50px; width: min(100%, 1108px); }
  .pc-section-assets--sec1 img:first-child { width: 100%; }
  .pc-section-assets--sec1 img:last-child { width: min(58%, 641px); }
  .image-section--sec2 { padding: 88px 40px 98px; }
  .image-section--sec2 > img { display: none; }
  .pc-section-assets--sec2 { gap: 42px; width: min(100%, 963px); }
  .pc-section-assets--sec2 img { width: 100%; }

  .image-cta { height: 368px; }
  .image-cta > picture {
    position: relative;
    left: 50%;
    display: block;
    width: 2000px;
    height: 368px;
    transform: translateX(-50%);
  }
  .image-cta > picture img {
    display: block;
    width: 2000px;
    max-width: none;
    height: 368px;
  }
  .image-cta > .contact-buttons--cta {
    bottom: 11%;
    left: calc(50% + 312px);
    display: grid;
    gap: 9px;
    width: 360px;
  }
  .image-cta > .contact-buttons--cta .contact-button { width: 100%; }

  .sec3 {
    padding: 90px 40px 105px;
    background-color: #f8f5eb;
    background-image: url("../images/sec3_background.webp");
    background-position: center top;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
  }
  .sec3__title { display: block; width: min(100%, 419px); margin: 0 auto 42px; }
  .sec3__title img { width: 100%; }
  .sec3__tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    width: min(100%, 1100px);
    margin: 0 auto 68px;
  }
  .sec3__tab {
    position: relative;
    overflow: hidden;
    padding: 0;
    border: 4px solid transparent;
    background: #0b3441;
    cursor: pointer;
  }
  .sec3__tab img { transition: opacity .25s ease, transform .25s ease; }
  .sec3__tab:not(.is-active) img { opacity: .55; }
  .sec3__tab:hover img { opacity: .82; transform: scale(1.015); }
  .sec3__tab.is-active { border-color: var(--gold); }
  .sec3__tab:focus-visible { outline: 3px solid var(--navy); outline-offset: 4px; }
  .sec3__product { display: none; }
  .sec3__product.is-pc-active { display: block; }
  .sec3__product--tai,
  .sec3__product--card {
    width: min(100%, 1100px);
    margin: 0 auto;
    padding: 0;
    background: #fff;
  }
  .sec3__item,
  .sec3__item--tai,
  .sec3__item--hamo,
  .sec3__item--fugu {
    display: block;
    width: 100%;
    margin: 0;
  }
  .sec3__item img { width: 100%; }
  .tai-accordion,
  .product-accordion--wide { width: 100%; }
  .tai-accordion__summary picture,
  .tai-accordion__summary picture img { display: block; width: 100%; }
  .tai-accordion__icon { right: 24px; font-size: 20px; }
  .tai-accordion__body { padding: 58px 42px 70px; }
  .tai-detail {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 34px 26px;
  }
  #about-hamo .tai-detail,
  #about-fugu .tai-detail { grid-template-columns: repeat(2, 1fr); }
  .tai-detail + .tai-detail { margin-top: 70px; padding-top: 60px; border-top: 1px solid #d4d7d8; }
  .tai-detail > h3 { grid-column: 1 / -1; margin: 0; font-size: 30px; }
  .tai-detail__card { margin: 0; padding: 0 0 22px; background: #fff; box-shadow: 0 2px 8px rgb(0 44 60 / 10%); }
  .tai-detail__card h4 {
    min-height: 82px;
    margin: 0;
    padding: 18px 18px 14px;
    border: 0;
    border-left: 5px solid var(--gold);
    font-size: 20px;
    line-height: 1.55;
  }
  .tai-detail__card img { width: 100%; margin: 0 0 16px; aspect-ratio: 450 / 283; object-fit: cover; }
  .tai-detail__gallery { gap: 8px; margin: 0 0 16px; }
  .tai-detail__gallery img { margin: 0; }
  .tai-detail__card p { padding: 0 20px; font-size: 15px; line-height: 2; }
  .sec3__note { width: min(100%, 649px); margin-top: 38px; }

  /* 商品案内より下は、PCワイヤーフレームの中央1100px構成を維持 */
  .sec4 { padding: 88px 40px 96px; }
  .sec4__heading { width: min(100%, 506px); margin-bottom: 54px; }
  .sec4__socials { gap: 78px; }
  .sec4__social--facebook,
  .sec4__social--x,
  .sec4__social--line { width: 160px; }
  .sec4__social p { font-size: 18px; }

  .sec5 { padding: 92px 40px 105px; }
  .sec5__heading { width: min(100%, 270px); margin-bottom: 58px; }
  .sec5__list { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 38px; width: min(100%, 1010px); }
  .sec5__item { margin: 0; }
  .sec5__summary picture,
  .sec5__summary img { width: 100%; }
  .sec5__toggle { right: 18px; font-size: 30px; }
  .sec5__item[open] .sec5__toggle::after { font-size: 30px; }
  .sec5__answer { width: calc(100% - 24px); padding: 30px; }
  .sec5__answer h3 { font-size: 20px; }
  .sec5__answer p { font-size: 15px; }

  .sec6 { padding: 92px 40px 110px; background-attachment: fixed; }
  .sec6__heading { width: min(100%, 149px); margin-bottom: 55px; }
  .sec6__map { width: min(100%, 1010px); margin-bottom: 62px; }
  .sec6__map iframe { aspect-ratio: 1010 / 460; }
  .sec6__guide { width: min(100%, 1010px); }
  .sec6__guide--public { margin-bottom: 58px; }

  .sec7 { padding: 94px 40px 112px; }
  .sec7__heading { width: min(100%, 166px); margin-bottom: 58px; }
  .sec7__content {
    display: grid;
    grid-template-columns: 56% 44%;
    align-items: start;
    gap: 42px;
    width: min(100%, 1100px);
    margin-inline: auto;
  }
  .sec7__photo,
  .sec7__table { width: 100%; margin: 0; }
  .sec7__table { order: 1; }
  .sec7__photo { order: 2; }
  .sec7__table { font-size: 14px; }
  .sec7__table th { width: 29%; }
  .sec7__table th,
  .sec7__table td { padding: 12px 14px; }
  .footer { padding: 36px 20px; }
}

@media (min-width: 900px) and (max-width: 1099px) {
  .hero { height: 65.4545vw; }
  .hero__pc {
    width: 181.8182vw;
    height: 65.4545vw;
  }
  .contact-buttons--hero-pc {
    left: calc(50% + 2.7273vw);
    gap: .9091vw;
    width: 32.7273vw;
  }
  .image-cta { height: 33.4545vw; }
  .image-cta > picture {
    width: 181.8182vw;
    height: 33.4545vw;
  }
  .image-cta > picture img {
    width: 181.8182vw;
    height: 33.4545vw;
  }
  .image-cta > .contact-buttons--cta {
    left: calc(50% + 28.3636vw);
    gap: .8182vw;
    width: 32.7273vw;
  }
  .sec4__socials { gap: 5vw; }
  .sec7__content { grid-template-columns: 1fr; width: min(100%, 760px); }
  .sec7__photo { width: min(100%, 669px); margin-inline: auto; }
}

@media (min-width: 900px) {
  .menu-toggle,
  .menu-backdrop,
  .global-menu { display: none; }
  .pc-navigation { display: flex; }
}

@media (max-width: 420px) {
  .section { padding: 3.3rem 0; }
  .placeholder { min-height: 180px; }
  .placeholder--map { min-height: 270px; }
}