/* =========================================================
   AKKホーム株式会社 コーポレートサイト
   コンセプト: 「はじめての日本に、帰る場所を。」
   エディトリアルモダン × アーキテクチャル × プレイフル
   ========================================================= */

:root {
  /* ロゴの金色(ひまわり/太陽) × 建物外観の青(藍)のパレット */
  --paper: #F5EFE2;        /* 生成りの紙 */
  --paper-deep: #EDE4CE;   /* 少し深い紙 */
  --ink: #1E2A44;          /* 藍(建物の青から) */
  --ink-soft: #4C5871;     /* 薄い藍鼠 */
  --gold: #C29B25;         /* ロゴの金 */
  --gold-deep: #8F7013;    /* 濃い金(小さな文字用) */
  --gold-pale: rgba(194, 155, 37, 0.14);
  --blue: #35569B;         /* 明るめの藍(アクセント用) */
  --blue-pale: rgba(53, 86, 155, 0.10);
  --red: #B5432E;          /* 印(はんこ)の朱 */
  --line: rgba(30, 42, 68, 0.18);
  --line-light: rgba(245, 239, 226, 0.22);

  --font-serif: "Zen Old Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-sans: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-en: "Outfit", "Helvetica Neue", sans-serif;

  --section-pad: clamp(5rem, 12vw, 10rem);
  --side-pad: clamp(1.25rem, 5vw, 6rem);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* 中国語表示時は簡体字グリフのフォントを優先 */
html[lang="zh-CN"] {
  --font-serif: "Noto Serif SC", "Zen Old Mincho", serif;
  --font-sans: "Noto Sans SC", "Zen Kaku Gothic New", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.9;
  font-size: 1rem;
  letter-spacing: 0.04em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
ul, ol { list-style: none; }
em { font-style: normal; }

/* 改行制御 */
.nw { white-space: nowrap; } /* 電話番号・時間など途中で折り返したくない語句 */

/* 本文中のテキストリンク(グループ校サイトなど) */
.txt-link {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  transition: color 0.3s ease, border-color 0.3s ease;
}
.txt-link:hover, .txt-link:focus-visible { color: var(--gold-deep); border-bottom-color: var(--gold-deep); }

/* 見出しは行長のバランスを取り、本文は孤立行(1文字だけの行など)を避ける
   (未対応ブラウザでは無視されるだけなので安全) */
.section-title, .section-sub, .about-catch, .message-catch,
.contact-title, .reason-item h3, .lang-gate-lead { text-wrap: balance; }
.hero-lead, .about-paragraphs p, .message-text p, .service-desc,
.reason-item p, .contact-lead, .section-sub { text-wrap: pretty; }

/* 日本語表示時は見出しを文節単位で折り返す(Chrome系のみ・他は従来通り) */
html[lang="ja"] .section-title,
html[lang="ja"] .about-catch,
html[lang="ja"] .message-catch,
html[lang="ja"] .contact-title,
html[lang="ja"] .reason-item h3 { word-break: auto-phrase; }

.pc-only { display: inline; }
.sp-only { display: none; }
@media (max-width: 768px) {
  .pc-only { display: none; }
  .sp-only { display: inline; }
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.75rem 1.5rem;
  z-index: 200;
}
.skip-link:focus { left: 0; }

/* =========================================================
   スクロール出現アニメーション
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(2.2rem);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  transition-delay: var(--reveal-delay, 0s);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* =========================================================
   ヘッダー
   ========================================================= */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background 0.4s ease, box-shadow 0.4s ease;
}
.site-header.is-scrolled {
  background: rgba(245, 239, 226, 0.92);
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem var(--side-pad);
}
.header-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}
.header-logo img {
  width: clamp(64px, 8vw, 88px);
  height: auto;
}
.header-logo-text {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  line-height: 1.3;
  white-space: nowrap;
}
.header-logo-text span {
  display: block;
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--ink-soft);
  letter-spacing: 0.2em;
}

.global-nav ul {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.2vw, 2rem);
}
.global-nav a {
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  position: relative;
  padding: 0.4rem 0;
  white-space: nowrap;
}
.global-nav a:not(.nav-contact)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s var(--ease-out);
}
.global-nav a:not(.nav-contact):hover::after,
.global-nav a:not(.nav-contact):focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}
.nav-contact {
  background: var(--ink);
  color: var(--paper);
  padding: 0.55rem 1.4rem !important;
  border-radius: 999px;
  transition: background 0.3s ease;
}
.nav-contact:hover, .nav-contact:focus-visible { background: var(--gold-deep); }

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 7px;
  width: 48px;
  height: 48px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 120;
}
.menu-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--ink);
  margin-inline: auto;
  transition: transform 0.35s var(--ease-out), background 0.3s;
}
.menu-toggle.is-open span:nth-child(1) { transform: translateY(4.5px) rotate(45deg); background: var(--paper); }
.menu-toggle.is-open span:nth-child(2) { transform: translateY(-4.5px) rotate(-45deg); background: var(--paper); }

/* 日本語ナビは横幅を取るため、1100px以下でハンバーガーに切替 */
@media (max-width: 1100px) {
  .global-nav { display: none; }
  .menu-toggle { display: flex; }
}

/* モバイルメニュー */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 110;
  background: var(--ink);
  color: var(--paper);
  display: grid;
  place-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.45s ease, visibility 0.45s;
}
.mobile-menu.is-open { opacity: 1; visibility: visible; }
.mobile-menu li {
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
  transition-delay: calc(var(--i) * 0.06s + 0.1s);
}
.mobile-menu.is-open li { opacity: 1; transform: none; }
.mobile-menu a {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 6vw, 1.8rem);
  text-decoration: none;
  padding: 0.55rem 0;
}
.mobile-menu a em {
  font-family: var(--font-en);
  font-size: 0.8rem;
  color: var(--gold);
  letter-spacing: 0.15em;
}
.mobile-menu-note {
  margin-top: 2rem;
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  color: rgba(245, 239, 226, 0.6);
  text-align: center;
}

/* =========================================================
   ヒーロー
   ========================================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 7rem var(--side-pad) 5rem;
  overflow: hidden;
  background:
    radial-gradient(ellipse 50% 45% at 8% 8%, var(--blue-pale), transparent 70%),
    var(--paper);
}

/* 建築的な薄いグリッド線 */
.hero-grid-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px);
  background-size: calc(100% / 6) 100%;
  opacity: 0.35;
  mask-image: linear-gradient(to bottom, transparent, #000 15%, #000 85%, transparent);
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 15%, #000 85%, transparent);
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1200px;
}

.hero-eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1rem;
}
.hero-eyebrow span { white-space: nowrap; }
.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  color: var(--blue);
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
  opacity: 0;
  animation: hero-fade 1s var(--ease-out) 0.2s forwards;
}
.hero-eyebrow .sep {
  width: 3rem;
  height: 1px;
  background: var(--gold);
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.7rem, 8.6vw, 6.4rem);
  line-height: 1.32;
  letter-spacing: 0.06em;
}
.hero-line { display: block; white-space: nowrap; }
.hero-line-2 { padding-left: clamp(1.5rem, 6vw, 5rem); }

/* JSで1文字ずつ<span>化して順に立ち上げる */
.hero-title .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.6em) rotate(4deg);
  animation: char-rise 0.8s var(--ease-out) forwards;
  animation-delay: calc(var(--ci) * 0.045s + 0.45s);
}
@keyframes char-rise {
  to { opacity: 1; transform: none; }
}
/* JS無効時・reduced-motion時も見えるように */
.no-js .hero-title .char,
html:not(.js) .hero-title .char { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .hero-title .char { opacity: 1; transform: none; animation: none; }
}

.hero-lead {
  margin-top: clamp(1.8rem, 4vw, 2.8rem);
  font-size: clamp(0.92rem, 1.6vw, 1.05rem);
  color: var(--ink-soft);
  max-width: 42em;
  opacity: 0;
  animation: hero-fade 1.1s var(--ease-out) 1.3s forwards;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: clamp(2rem, 4vw, 3rem);
  opacity: 0;
  animation: hero-fade 1.1s var(--ease-out) 1.6s forwards;
}

@keyframes hero-fade {
  from { opacity: 0; transform: translateY(1rem); }
  to { opacity: 1; transform: none; }
}

/* ボタン */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.95rem 2rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.92rem;
  letter-spacing: 0.1em;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease, transform 0.3s var(--ease-out);
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--ink);
  color: var(--paper);
}
.btn-primary:hover, .btn-primary:focus-visible { background: var(--gold-deep); }
.btn-ghost {
  border: 1px solid var(--line);
  color: var(--ink);
}
.btn-ghost:hover, .btn-ghost:focus-visible { border-color: var(--gold); color: var(--gold-deep); }
.btn-arrow { transition: transform 0.3s var(--ease-out); }
.btn:hover .btn-arrow { transform: translateX(4px); }

/* ヒーロー右下の装飾ロゴ(3段構成: 外側=浮上 / 中=呼吸 / img=パララックス) */
.hero-sun {
  position: absolute;
  right: clamp(-5rem, -2vw, 1rem);
  bottom: clamp(-2rem, 1vw, 3rem);
  width: clamp(300px, 46vw, 660px);
  z-index: 1;
  opacity: 0;
  animation: sun-rise 1.6s var(--ease-out) 0.6s forwards;
  will-change: transform;
}
@keyframes sun-rise {
  from { opacity: 0; transform: translateY(12%); }
  to { opacity: 1; transform: none; }
}
.sun-breathe {
  display: block;
  transform-origin: 60% 55%;
  animation: sun-breathe 7s ease-in-out infinite alternate;
}
.sun-img {
  width: 100%;
  height: auto;
  display: block;
  opacity: 0.2;
}
@keyframes sun-breathe {
  from { transform: scale(0.99); }
  to { transform: scale(1.015); }
}

/* 回転スタンプ */
.hero-stamp {
  position: absolute;
  right: clamp(1.5rem, 6vw, 7rem);
  top: clamp(6.5rem, 14vh, 9rem);
  width: clamp(84px, 10vw, 128px);
  z-index: 2;
  opacity: 0;
  animation: hero-fade 1s ease 2s forwards;
}
.stamp-svg { width: 100%; height: auto; animation: stamp-spin 26s linear infinite; }
@keyframes stamp-spin { to { transform: rotate(360deg); } }
.stamp-text {
  font-family: var(--font-en);
  font-size: 10.5px;
  letter-spacing: 2.4px;
  fill: var(--red);
}
.stamp-inner-circle { fill: none; stroke: var(--red); stroke-width: 1; opacity: 0.7; }
.stamp-kanji {
  font-family: var(--font-serif);
  font-size: 24px;
  fill: var(--red);
}

/* スクロールサイン */
.hero-scroll {
  position: absolute;
  left: var(--side-pad);
  bottom: 2.2rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  z-index: 2;
  opacity: 0;
  animation: hero-fade 1s ease 2.2s forwards;
}
.hero-scroll-text {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.hero-scroll-bar {
  width: 4.5rem;
  height: 1px;
  background: var(--line);
  position: relative;
  overflow: hidden;
}
.hero-scroll-bar::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gold-deep);
  transform: translateX(-100%);
  animation: scroll-slide 2.2s var(--ease-out) infinite;
}
@keyframes scroll-slide {
  0% { transform: translateX(-100%); }
  55% { transform: translateX(0); }
  100% { transform: translateX(100%); }
}

@media (max-width: 768px) {
  .hero { padding-top: 6.5rem; }
  /* ロゴが判別できるよう、はみ出しを抑えて全体を見せる */
  .hero-sun { right: 2vw; bottom: 4vw; width: 76vw; }
  .hero-stamp { right: 1.25rem; top: auto; bottom: 7rem; }
}

/* =========================================================
   マーキー
   ========================================================= */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 1.1rem 0;
  background: var(--paper);
}
.marquee-track {
  display: flex;
  gap: 3.5rem;
  width: max-content;
  animation: marquee-move 36s linear infinite;
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2.4vw, 1.35rem);
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  white-space: nowrap;
}
.marquee-track em { color: var(--blue); }
.marquee-track i { font-style: normal; font-family: var(--font-en); font-weight: 400; color: var(--gold-deep); }
@keyframes marquee-move {
  to { transform: translateX(calc(-100% / 3)); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
}

/* =========================================================
   セクション共通
   ========================================================= */
.section {
  padding: var(--section-pad) var(--side-pad);
  position: relative;
}

.section-head { margin-bottom: clamp(3rem, 7vw, 5.5rem); }
.section-index {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-en);
  color: var(--gold-deep);
  margin-bottom: 1.1rem;
}
.section-index span:first-child {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.1em;
}
.section-index::after {
  content: "";
  flex: 0 0 3rem;
  height: 1px;
  background: var(--gold);
  order: 2;
}
.section-index-en {
  order: 3;
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.35em;
}
.section-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.7rem, 4.4vw, 2.7rem);
  letter-spacing: 0.08em;
  line-height: 1.4;
}
.section-sub {
  margin-top: 1.1rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* =========================================================
   ABOUT
   ========================================================= */
.about {
  background:
    radial-gradient(ellipse 60% 50% at 85% 10%, var(--gold-pale), transparent 70%),
    var(--paper);
}
.about-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(2rem, 6vw, 6rem);
  max-width: 1200px;
}
.about-catch {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0.1em;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.about-paragraphs {
  max-width: 38em;
  display: grid;
  gap: 1.6rem;
  color: var(--ink-soft);
}
.about-side { display: flex; align-items: flex-start; }
.about-vertical {
  writing-mode: vertical-rl;
  font-family: var(--font-serif);
  font-size: clamp(1rem, 1.8vw, 1.3rem);
  letter-spacing: 0.42em;
  color: var(--blue);
  border-left: 1px solid var(--line);
  padding-left: clamp(1.2rem, 2vw, 2rem);
  min-height: 16em;
}
@media (max-width: 768px) {
  .about-body { grid-template-columns: 1fr; }
  .about-side { display: none; }
}

/* =========================================================
   SERVICES (墨色の紙面)
   ========================================================= */
.services {
  background: var(--ink);
  color: var(--paper);
}
.services .section-index { color: var(--gold); }
.services .section-index::after { background: var(--gold); }
.services .section-sub { color: rgba(245, 239, 226, 0.65); }

.service-list {
  max-width: 1100px;
  counter-reset: service;
  border-top: 1px solid var(--line-light);
}
.service-item {
  display: grid;
  grid-template-columns: clamp(4.5rem, 10vw, 8rem) 1fr;
  gap: clamp(1rem, 3vw, 3rem);
  align-items: baseline;
  padding: clamp(1.8rem, 4vw, 2.8rem) 0.5rem;
  border-bottom: 1px solid var(--line-light);
  position: relative;
  transition: background 0.4s ease, padding-left 0.4s var(--ease-out);
}
.service-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gold);
  transform: scaleY(0);
  transition: transform 0.4s var(--ease-out);
  transform-origin: top;
}
.service-item:hover { background: rgba(245, 239, 226, 0.045); padding-left: 1.4rem; }
.service-item:hover::before { transform: scaleY(1); }

.service-num {
  font-family: var(--font-en);
  font-weight: 300;
  font-size: clamp(1.8rem, 4.5vw, 3.4rem);
  color: transparent;
  -webkit-text-stroke: 1px var(--gold);
  line-height: 1;
  transition: color 0.4s ease;
}
.service-item:hover .service-num { color: var(--gold); }

.service-main h3 {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2.8vw, 1.75rem);
  font-weight: 500;
  letter-spacing: 0.1em;
  display: inline-block;
  margin-right: 1rem;
}
.service-en {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  color: var(--gold);
  vertical-align: 0.35em;
}
.service-desc {
  margin-top: 0.7rem;
  font-size: 0.92rem;
  color: rgba(245, 239, 226, 0.72);
  max-width: 42em;
}
@media (max-width: 600px) {
  .service-item { grid-template-columns: 1fr; gap: 0.4rem; }
  .service-item:hover { padding-left: 0.5rem; }
}

/* =========================================================
   REASON
   ========================================================= */
.reason {
  background:
    radial-gradient(ellipse 50% 40% at 10% 90%, var(--gold-pale), transparent 70%),
    var(--paper);
}
.reason-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3.5vw, 3rem);
  max-width: 1200px;
}
.reason-item {
  position: relative;
  padding: clamp(2.2rem, 4vw, 3rem) clamp(1.4rem, 2.5vw, 2.2rem) clamp(1.8rem, 3vw, 2.4rem);
  border: 1px solid var(--line);
  background: rgba(255, 253, 247, 0.55);
  transition: transform 0.45s var(--ease-out), box-shadow 0.45s ease, border-color 0.45s ease;
}
.reason-item:nth-child(2) { transform: translateY(clamp(1rem, 3vw, 2.5rem)); }
.reason-item:hover {
  transform: translateY(-6px);
  border-color: var(--gold);
  box-shadow: 0 18px 40px -18px rgba(30, 42, 68, 0.3);
}
.reason-item:nth-child(2):hover { transform: translateY(calc(clamp(1rem, 3vw, 2.5rem) - 6px)); }
.reason-num {
  position: absolute;
  top: -0.9em;
  left: 1.2rem;
  font-family: var(--font-serif);
  font-size: 2.1rem;
  color: var(--gold);
  background: var(--paper);
  padding: 0 0.4rem;
  line-height: 1;
}
.reason-item h3 {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 2vw, 1.35rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.7;
  margin-bottom: 1rem;
}
.reason-item p {
  font-size: 0.92rem;
  color: var(--ink-soft);
}
@media (max-width: 860px) {
  .reason-list { grid-template-columns: 1fr; max-width: 560px; }
  .reason-item:nth-child(2) { transform: none; }
  .reason-item:nth-child(2):hover { transform: translateY(-6px); }
}

/* =========================================================
   MESSAGE (深い金の紙面)
   ========================================================= */
.message {
  background:
    radial-gradient(ellipse 70% 60% at 90% 100%, rgba(194, 155, 37, 0.22), transparent 65%),
    var(--paper-deep);
}
.message-body {
  max-width: 900px;
  margin-inline: auto;
}
.message-catch {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0.12em;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  position: relative;
  padding-left: clamp(1.4rem, 3vw, 2.4rem);
}
.message-catch::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.3em;
  bottom: 0.3em;
  width: 3px;
  background: var(--gold);
}
.message-text {
  display: grid;
  gap: 1.7rem;
  color: var(--ink-soft);
  font-size: 0.98rem;
}
.message-sign {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  text-align: right;
}
.message-sign-title {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--ink-soft);
  margin-bottom: 0.5rem;
}
.message-sign-name {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  font-weight: 500;
  letter-spacing: 0.35em;
}

/* =========================================================
   COMPANY
   ========================================================= */
.company-table {
  max-width: 860px;
  border-top: 1px solid var(--line);
}
.company-row {
  display: grid;
  grid-template-columns: clamp(7rem, 18vw, 12rem) 1fr;
  border-bottom: 1px solid var(--line);
  transition: background 0.3s ease;
}
.company-row:hover { background: var(--gold-pale); }
.company-row dt {
  padding: 1.1rem 1rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--blue);
}
.company-row dd {
  padding: 1.1rem 1rem;
  font-size: 0.95rem;
}
.company-row a {
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  transition: color 0.3s;
  overflow-wrap: anywhere;
}
.company-row a:hover { color: var(--gold-deep); }
@media (max-width: 560px) {
  .company-row { grid-template-columns: 1fr; }
  .company-row dt { padding-bottom: 0; }
  .company-row dd { padding-top: 0.3rem; }
}

/* =========================================================
   ACCESS
   ========================================================= */
.access { padding-top: 0; }
.access-body {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  max-width: 1100px;
  border: 1px solid var(--line);
  padding: clamp(2rem, 5vw, 4rem);
  background: rgba(255, 253, 247, 0.55);
}
.access-address {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  line-height: 2;
  letter-spacing: 0.08em;
  margin-bottom: 1.8rem;
}
.access-mark-en {
  font-family: var(--font-en);
  font-weight: 300;
  font-size: clamp(1.3rem, 3vw, 2rem);
  letter-spacing: 0.18em;
  line-height: 1.5;
  color: var(--blue);
  text-align: right;
  border-right: 3px solid var(--gold);
  padding-right: 1.2rem;
}
@media (max-width: 700px) {
  .access-body { grid-template-columns: 1fr; }
  .access-mark { display: none; }
}

/* =========================================================
   CONTACT
   ========================================================= */
.contact { padding-bottom: var(--section-pad); }
.contact-panel {
  max-width: 1100px;
  margin-inline: auto;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(3rem, 7vw, 5.5rem) clamp(1.5rem, 5vw, 5rem);
  position: relative;
  overflow: hidden;
}
.contact-panel::before {
  content: "";
  position: absolute;
  right: -8rem;
  bottom: -10rem;
  width: 26rem;
  height: 26rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(194, 155, 37, 0.35), transparent 65%);
  pointer-events: none;
}
.contact-eyebrow {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.4em;
  color: var(--gold);
  margin-bottom: 1.2rem;
}
.contact-title {
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 4.5vw, 2.8rem);
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.5;
  margin-bottom: 1.4rem;
}
.contact-lead {
  color: rgba(245, 239, 226, 0.75);
  font-size: 0.95rem;
  margin-bottom: clamp(2.2rem, 4vw, 3.2rem);
}
.contact-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem;
  position: relative;
}
.contact-card {
  display: grid;
  gap: 0.4rem;
  padding: 1.6rem 1.8rem;
  border: 1px solid var(--line-light);
  text-decoration: none;
  transition: border-color 0.35s ease, background 0.35s ease, transform 0.35s var(--ease-out);
}
.contact-card:hover {
  border-color: var(--gold);
  background: rgba(194, 155, 37, 0.08);
  transform: translateY(-4px);
}
.contact-card-label {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--gold);
}
.contact-card-value {
  font-family: var(--font-en);
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  font-weight: 400;
  letter-spacing: 0.05em;
}
.contact-card-mail {
  font-size: clamp(0.95rem, 2.2vw, 1.25rem);
  overflow-wrap: anywhere;
}
.contact-card-note {
  font-size: 0.75rem;
  color: rgba(245, 239, 226, 0.6);
  letter-spacing: 0.1em;
}

/* =========================================================
   フッター
   ========================================================= */
.site-footer {
  background: var(--paper);
  border-top: 1px solid var(--line);
  padding: clamp(3rem, 6vw, 4.5rem) var(--side-pad) 1.8rem;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  max-width: 1200px;
  margin-bottom: 3rem;
}
.footer-brand img { width: 96px; margin-bottom: 1rem; }
.footer-company {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.8rem;
}
.footer-address, .footer-license {
  font-size: 0.82rem;
  color: var(--ink-soft);
  line-height: 2;
}
.footer-license { margin-top: 0.4rem; }
.footer-group { margin-top: 1rem; font-size: 0.85rem; color: var(--ink-soft); }
.footer-nav ul {
  display: grid;
  gap: 0.6rem;
}
.footer-nav a {
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  transition: color 0.3s;
}
.footer-nav a:hover { color: var(--blue); }
.footer-copy {
  text-align: center;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  padding-top: 1.6rem;
}
@media (max-width: 700px) {
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
}

/* =========================================================
   言語切替(ヘッダー)
   ========================================================= */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  margin-left: clamp(0.5rem, 1.5vw, 1.2rem);
}
.lang-switch button {
  appearance: none;
  background: none;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 0.32rem 0.6rem;
  color: var(--ink-soft);
  transition: color 0.3s ease, border-color 0.3s ease;
}
.lang-switch button:hover { color: var(--blue); }
.lang-switch button.is-active {
  border-color: var(--gold);
  color: var(--gold-deep);
}
@media (max-width: 420px) {
  .header-logo-text { display: none; }
}

/* =========================================================
   言語選択ゲート(初回訪問時)
   ========================================================= */
body.gate-open { overflow: hidden; }

.lang-gate {
  position: fixed;
  inset: 0;
  z-index: 300;
  background:
    radial-gradient(ellipse 55% 45% at 85% 12%, var(--gold-pale), transparent 70%),
    radial-gradient(ellipse 50% 45% at 10% 95%, var(--blue-pale), transparent 70%),
    var(--paper);
  display: grid;
  place-items: center;
  overflow-y: auto;
  transition: opacity 0.6s ease;
}
.lang-gate.is-leaving { opacity: 0; pointer-events: none; }
/* display:grid が [hidden] のUAスタイルに勝ってしまうのを防ぐ */
.lang-gate[hidden] { display: none; }

.lang-gate-inner {
  text-align: center;
  padding: 2.5rem 1.5rem;
}
.lang-gate-logo {
  width: clamp(190px, 30vw, 280px);
  height: auto;
  margin-inline: auto;
  display: block;
  margin-bottom: 1.6rem;
  animation: gate-logo-in 1s var(--ease-out) both;
}
@keyframes gate-logo-in {
  from { opacity: 0; transform: translateY(0.7rem) scale(0.97); }
  to { opacity: 1; transform: none; }
}
.lang-gate-name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.25rem, 3.4vw, 1.7rem);
  letter-spacing: 0.14em;
  margin-bottom: 0.4rem;
}
.lang-gate-name span {
  display: block;
  font-family: var(--font-en);
  font-weight: 400;
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  color: var(--ink-soft);
  margin-top: 0.5rem;
}
.lang-gate-lead {
  font-size: 0.85rem;
  color: var(--ink-soft);
  letter-spacing: 0.1em;
  margin: 1.6rem 0 2rem;
}
.lang-gate-lead span::before { content: "／"; margin: 0 0.6em; color: var(--line); }
.lang-gate-lead, .lang-gate-lead span { white-space: nowrap; }
@media (max-width: 560px) {
  /* 狭い画面では言語ごとに1行ずつ縦に並べる */
  .lang-gate-lead { white-space: normal; }
  .lang-gate-lead span { display: block; margin-top: 0.3em; }
  .lang-gate-lead span::before { content: none; }
}
.lang-gate-buttons {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 168px));
  gap: clamp(0.8rem, 2vw, 1.2rem);
  justify-content: center;
}
.lang-gate-btn {
  appearance: none;
  background: rgba(255, 253, 247, 0.6);
  border: 1px solid var(--line);
  cursor: pointer;
  display: grid;
  justify-items: center;
  gap: 0.35rem;
  padding: 1.5rem 1rem 1.2rem;
  font-family: inherit;
  color: var(--ink);
  transition: border-color 0.35s ease, transform 0.35s var(--ease-out), box-shadow 0.35s ease;
  opacity: 0;
  transform: translateY(1rem);
  animation: hero-fade 0.7s var(--ease-out) forwards;
  animation-delay: calc(var(--g) * 0.12s + 0.3s);
}
.lang-gate-btn:hover, .lang-gate-btn:focus-visible {
  border-color: var(--gold);
  transform: translateY(-4px);
  box-shadow: 0 16px 32px -18px rgba(30, 42, 68, 0.35);
}
.lang-ico {
  display: grid;
  place-items: center;
  width: 3.1rem;
  height: 3.1rem;
  border: 1px solid var(--gold);
  border-radius: 50%;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--gold-deep);
  margin-bottom: 0.4rem;
  transition: background 0.35s ease, color 0.35s ease;
}
.lang-gate-btn:hover .lang-ico, .lang-gate-btn:focus-visible .lang-ico {
  background: var(--gold);
  color: #fff;
}
.lang-name {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.1em;
}
.lang-sub {
  font-family: var(--font-en);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--ink-soft);
}
@media (max-width: 560px) {
  .lang-gate-buttons { grid-template-columns: minmax(200px, 240px); }
  .lang-gate-btn {
    grid-template-columns: auto 1fr auto;
    align-items: center;
    justify-items: start;
    padding: 0.9rem 1.2rem;
    text-align: left;
  }
  .lang-ico { width: 2.5rem; height: 2.5rem; font-size: 1.1rem; margin-bottom: 0; margin-right: 0.9rem; }
  .lang-sub { justify-self: end; }
}
@media (prefers-reduced-motion: reduce) {
  .lang-gate-btn { opacity: 1; transform: none; animation: none; }
  .lang-gate-logo { opacity: 1; transform: none; animation: none; }
}