/* GOOD COMPANY FORUM 2027 — 共通スタイル */
:root {
  --paper: #efebe0;
  --paper-deep: #e5e0d2;
  --ink: #161514;
  --dark-bg: #33302b;
  --muted: #5b574f;
  --yellow: #f0d22e;
  --teal: #3f9aa6;
  --pink: #e0607e;
  --line: #16151433;
  --soft-line: #efebe055;
  --dim: #efebe0aa;

  --font-mincho: "Zen Old Mincho", serif;
  --font-display: "Oswald", sans-serif;
  --font-label: "Crimson Pro", serif;
  --font-hand: "Yomogi", cursive;
  --font-script: "Mrs Saint Delafield", cursive;

  /* デザインの基準幅 1440px に対する 1px */
  --u: calc(min(100vw, 1440px) / 1440);
  --gutter: 64px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3, p, li, dd { word-break: auto-phrase; text-wrap: pretty; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.wrap {
  width: 100%;
  max-width: calc(1312px + var(--gutter) * 2);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section { padding: 120px 0; scroll-margin-top: 80px; }
.section--deep { background: var(--paper-deep); }
.section--dark { background: var(--dark-bg); color: var(--paper); }
.section--yellow { background: var(--yellow); }

.label {
  display: block;
  font-family: var(--font-label);
  font-weight: 400;
  font-size: 15px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  line-height: 1.2;
}

.h-xl { font-weight: 700; font-size: 64px; line-height: 1.4; }
.h-lg { font-weight: 700; font-size: 52px; line-height: 1.5; }
.h-md { font-weight: 700; font-size: 46px; line-height: 1.55; }
.body-text { font-size: 17px; line-height: 2.1; color: var(--muted); }
.note { font-size: 14px; color: var(--muted); }
.section--dark .note { color: var(--dim); }

/* ボタン */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 20px 32px;
  border-radius: 999px;
  font-family: var(--font-mincho);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  border: 1.5px solid transparent;
  background: none;
  color: inherit;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn--dark { background: var(--ink); color: var(--paper); }
.btn--dark svg { color: var(--yellow); }
.btn--outline { border-color: var(--ink); }
.btn--yellow { background: var(--yellow); color: var(--ink); }
.btn--pink { background: var(--pink); color: var(--ink); }
.btn--teal { background: var(--teal); color: var(--ink); }
.btn--paper { background: var(--paper); color: var(--ink); }
.btn--sm { padding: 18px 28px; font-size: 16px; }

/* ---------- ナビ ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 20px;
  padding-bottom: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  flex: none;
}
.brand img { width: 64px; height: auto; }
.brand span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 32px;
  letter-spacing: 0.05em;
  line-height: 1;
  white-space: nowrap;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav__links a:not(.btn) {
  font-family: var(--font-label);
  font-size: 15px;
  letter-spacing: 0.13em;
  text-decoration: none;
  white-space: nowrap;
}
.nav__links .btn { padding: 12px 22px; font-size: 14px; }
.nav__toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: none;
  padding: 10px;
  cursor: pointer;
  color: var(--ink);
}
.nav__toggle svg { width: 24px; height: 24px; }

/* ---------- HERO（問い＋タイトル） ---------- */
.hero { position: relative; overflow: hidden; }
.hero__stage {
  position: relative;
  max-width: 1440px;
  margin: 0 auto;
  height: calc(var(--u) * 1560);
}
.hero__stage > * { position: absolute; }
.px { /* 位置は style 属性の --x/--y/--w/--h（1440px 基準）で指定 */
  left: calc(var(--u) * var(--x));
  top: calc(var(--u) * var(--y));
  width: calc(var(--u) * var(--w));
  height: calc(var(--u) * var(--h));
  object-fit: contain;
}
.hero__copy {
  left: calc(var(--u) * 64);
  top: calc(var(--u) * 56);
  width: calc(var(--u) * 760);
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 36);
  z-index: 3;
}
.hero__date {
  font-size: max(22px, calc(var(--u) * 40));
  letter-spacing: 0.12em;
  text-transform: none;
}
.hero__title {
  font-weight: 700;
  font-size: calc(var(--u) * 120);
  line-height: 1.22;
  letter-spacing: 0.02em;
}
.hero__sub {
  font-weight: 500;
  font-size: max(16px, calc(var(--u) * 24));
  line-height: 1.9;
}
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  font-size: 16px;
}
.hero__meta li + li { padding-left: 20px; border-left: 1px solid var(--ink); line-height: 1.1; }
.hero__ctas { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; }
.hero__ctas .btn { padding: 22px 36px; font-size: 18px; }
.text-link { font-size: 15px; text-decoration: underline; text-underline-offset: 4px; }

.hero__script {
  left: calc(var(--u) * 985);
  top: calc(var(--u) * 700);
  font-family: var(--font-script);
  font-size: calc(var(--u) * 100);
  line-height: 1;
  color: var(--paper);
  transform: rotate(-12deg);
  transform-origin: top left;
  white-space: nowrap;
  z-index: 2;
}
.hero__blob-note {
  left: calc(var(--u) * 1262);
  top: calc(var(--u) * 858);
  font-family: var(--font-hand);
  font-size: calc(var(--u) * 26);
  line-height: 1.3;
  transform: rotate(-6deg);
  transform-origin: top left;
  z-index: 2;
}
.spark {
  width: calc(var(--u) * 2.5);
  height: calc(var(--u) * 26);
  background: var(--ink);
  transform-origin: top left;
}
.hero__labels {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.25em;
  line-height: 1.9;
}
.vrule { width: 1px; background: var(--ink); }
.hero__wordmark {
  left: calc(var(--u) * 64);
  top: calc(var(--u) * 800);
  z-index: 2;
}
.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: calc(var(--u) * 168);
  line-height: 1.02;
  letter-spacing: 0.012em;
  text-transform: uppercase;
}
.wordmark .o { position: relative; display: inline-block; z-index: 0; }
/* 頭文字（G・C・F）の幅をそろえて、2文字目のOを縦一列に並べる（中央寄せでFを半分だけ寄せる） */
.wordmark .wm-1 { display: inline-block; width: 0.594em; text-align: center; }
.wordmark .o::before {
  content: "";
  position: absolute;
  z-index: -1;
  left: 50%;
  top: 52%;
  width: 0.36em;
  height: 0.625em;
  border-radius: 0.18em;
  transform: translate(-50%, -50%);
}
.wordmark .o--teal::before { background: var(--teal); }
.wordmark .o--pink::before { background: var(--pink); }
.hero__hand {
  left: calc(var(--u) * 560);
  top: calc(var(--u) * 1462);
  font-family: var(--font-hand);
  font-size: max(15px, calc(var(--u) * 26));
  line-height: 1.5;
  transform: rotate(-4deg);
  transform-origin: top left;
  white-space: nowrap;
  z-index: 2;
}

/* スマホ用の絵の並びはパソコンでは出さない */
.hero__art, .hero__people { display: none; }

/* ---------- 2カラムの基本形 ---------- */
.split { display: flex; gap: 96px; }
.split__lead { flex: 0 0 440px; display: flex; flex-direction: column; gap: 28px; align-items: flex-start; }
.split__main { flex: 1; min-width: 0; }

/* ---------- ABOUT ---------- */
.about__top { display: flex; gap: 96px; }
.about__lead { flex: 0 0 600px; display: flex; flex-direction: column; gap: 32px; }
.about__story { flex: 1; display: flex; flex-direction: column; gap: 28px; padding-top: 52px; }
.about__story-lead { font-weight: 600; font-size: 26px; line-height: 1.8; }
.views { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; margin-top: 88px; }
.view { border-top: 1.5px solid var(--ink); padding-top: 28px; display: flex; flex-direction: column; gap: 16px; }
.view__num { font-family: var(--font-display); font-weight: 700; font-size: 44px; line-height: 1; }
.view__title { font-weight: 700; font-size: 26px; line-height: 1.5; }
.view__body { font-size: 16px; line-height: 2; color: var(--muted); }

/* ---------- QUESTION ---------- */
.questions { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; margin-top: 72px; }
.q { display: flex; flex-direction: column; gap: 24px; }
.q:nth-child(2) { padding-top: 64px; }
.q:nth-child(3) { padding-top: 16px; }
.q:nth-child(4) { padding-top: 88px; }
.q__en { font-family: var(--font-label); font-size: 14px; letter-spacing: 0.2em; color: var(--dim); line-height: 1; }
.q__text { font-weight: 600; font-size: 30px; line-height: 1.6; }
.q__rule { width: 56px; height: 2px; }

/* ---------- EXPERIENCE ---------- */
.exp { display: flex; gap: 96px; }
.exp__lead { flex: 0 0 540px; display: flex; flex-direction: column; gap: 32px; align-items: flex-start; }
.takeaways { flex: 1; min-width: 0; border-top: 1.5px solid var(--ink); }
.takeaway {
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 36px 0;
  border-bottom: 1.5px solid var(--ink);
}
.takeaway__num { flex: 0 0 110px; font-family: var(--font-display); font-weight: 700; font-size: 88px; line-height: 1; }
.takeaway__text { flex: 1; display: flex; flex-direction: column; gap: 10px; }
.takeaway__title { font-weight: 700; font-size: 32px; line-height: 1.4; }
.takeaway__body { font-size: 17px; line-height: 1.9; color: var(--muted); }
.dot { flex: none; width: 28px; height: 28px; border-radius: 50%; }

/* ---------- 表（開催概要・主催） ---------- */
.table { border-top: 1.5px solid var(--ink); }
.table__row { display: flex; gap: 32px; padding: 24px 0; border-bottom: 1px solid var(--ink); }
.table__key { flex: 0 0 140px; font-weight: 700; font-size: 15px; line-height: 1.8; }
.table__val { flex: 1; font-weight: 600; font-size: 19px; line-height: 1.7; }
.section--dark .table { border-color: var(--soft-line); }
.section--dark .table__row { border-color: var(--soft-line); }
.section--dark .table__key { color: var(--dim); }

/* ---------- PROGRAM ---------- */
/* ---------- 会場（写真の帯と開催概要の写真） ---------- */
.venue { position: relative; height: clamp(520px, 56vw, 800px); overflow: hidden; color: var(--paper); }
.venue__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.venue-photos { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 80px; align-items: start; }
.venue-photos figure { margin: 0; }
.venue-photos img { display: block; width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.venue-photos figcaption { display: flex; justify-content: space-between; gap: 12px; margin-top: 10px; font-size: 14px; color: var(--muted); }
.venue-photos figcaption small { font-size: 12px; }
.venue__credit { position: absolute; right: 16px; bottom: 12px; z-index: 1; font-size: 11px; color: rgba(239, 235, 224, 0.9); text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5); }

.program { margin-top: 64px; }
.program__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: 40px; }
.program__title { font-weight: 700; font-size: 40px; line-height: 1.4; }
.program__meta { font-weight: 600; font-size: 18px; }
.program__list { border-top: 1.5px solid var(--ink); }
.prow { display: flex; align-items: center; gap: 40px; padding: 20px 0; border-bottom: 1px solid var(--ink); }
.prow--main { padding: 40px 0; }
.prow__time { flex: 0 0 150px; font-family: var(--font-display); font-weight: 700; font-size: 22px; color: var(--muted); line-height: 1.2; }
.prow--main .prow__time { font-size: 44px; color: var(--ink); }
.prow__part { flex: 0 0 110px; }
.part-badge { display: inline-block; padding: 8px 18px; font-weight: 700; font-size: 16px; line-height: 1.2; }
.prow__body { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 10px; }
.prow__item { font-size: 17px; color: var(--muted); line-height: 1.5; }
.prow--main .prow__item { font-weight: 700; font-size: 30px; color: var(--ink); }
.prow__desc { font-size: 16px; line-height: 1.8; color: var(--muted); }
.prow__who { flex: 0 0 220px; display: flex; justify-content: flex-end; align-items: center; gap: 12px; font-size: 15px; color: var(--muted); }
.pending { display: inline-block; padding: 6px 16px; border: 1px solid var(--ink); border-radius: 999px; font-size: 14px; color: var(--ink); line-height: 1.2; }
.program .note { margin-top: 32px; }

/* ---------- VOICES ---------- */
.head-row { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; }
.head-row__left { display: flex; flex-direction: column; gap: 28px; }
.voices { display: grid; grid-template-columns: repeat(5, 1fr); gap: 32px; margin-top: 72px; }
.voice { display: flex; flex-direction: column; gap: 20px; }
.voice:nth-child(2) { padding-top: 72px; }
.voice:nth-child(3) { padding-top: 24px; }
.voice:nth-child(4) { padding-top: 96px; }
.voice:nth-child(5) { padding-top: 40px; }
.voice__photo { width: 120px; height: 120px; border-radius: 50%; display: grid; place-items: center; }
.voice__photo svg { width: 44px; height: 44px; }
.voice__quote { font-weight: 700; font-size: 20px; line-height: 1.7; }
.voice__role { font-size: 14px; line-height: 1.6; color: var(--muted); }
.voices + .note { margin-top: 72px; }

/* ---------- PARTNERS ---------- */
.partners { display: flex; align-items: center; gap: 96px; }
.partners__lead { flex: 1; display: flex; flex-direction: column; gap: 28px; }
.partners__side { flex: 0 0 500px; }

/* ---------- JOIN US ---------- */
.join__title { margin-top: 28px; color: var(--paper); }
.join { margin-top: 56px; }
.join__row {
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 40px 0;
  border-top: 1px solid var(--soft-line);
}
.join__row:last-child { border-bottom: 1px solid var(--soft-line); }
.join__verb { flex: 0 0 360px; font-weight: 700; font-size: 56px; line-height: 1.3; }
.join__who { flex: 1; font-size: 18px; }

/* ---------- PEOPLE ---------- */
.people { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; margin-top: 72px; }
.person { display: flex; flex-direction: column; gap: 18px; }
.person__face { height: 280px; background: var(--paper); display: grid; place-items: center; }
.person__face svg { width: 56px; height: 56px; }
.person__quote { font-family: var(--font-hand); font-size: 22px; line-height: 1.5; }
.person__name { font-weight: 700; font-size: 20px; line-height: 1.5; }
.person__role { font-size: 14px; }

/* ---------- 主催＋フッター ---------- */
.closing { padding: 96px 0 0; }
.closing__row { display: flex; align-items: flex-end; gap: 96px; }
.closing__title { font-weight: 700; font-size: 48px; line-height: 1.45; }
.footer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 80px;
  padding: 32px 0 40px;
  border-top: 1px solid var(--soft-line);
}
.footer-brand { display: flex; align-items: center; gap: 16px; text-decoration: none; }
.footer-brand__badge { width: 60px; height: 60px; border-radius: 50%; background: var(--paper); display: grid; place-items: center; flex: none; }
.footer-brand__badge img { width: 38px; }
.footer-brand span { font-family: var(--font-display); font-weight: 700; font-size: 26px; letter-spacing: 0.06em; color: var(--paper); white-space: nowrap; }
.footer-links { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 32px; font-size: 14px; }
.footer-links a { color: var(--paper); text-decoration: none; }
.footer-links small { font-size: 14px; color: var(--dim); }
.footer--plain { background: var(--dark-bg); color: var(--paper); }
.footer--plain .footer-bar { margin-top: 0; border-top: 0; }

/* ---------- スマホ下部の固定ボタン ---------- */
.sticky-cta { display: none; }

/* ---------- 開催情報の受け取り（ダイアログ） ---------- */
.dialog {
  width: min(560px, calc(100vw - 32px));
  padding: 0;
  border: 0;
  background: var(--paper);
  color: var(--ink);
}
.dialog::backdrop { background: #161514aa; }
.dialog__inner { padding: 48px 40px 40px; display: flex; flex-direction: column; gap: 24px; position: relative; }
.dialog__close { position: absolute; top: 12px; right: 12px; width: 44px; height: 44px; border: 0; background: none; cursor: pointer; color: var(--ink); }
.dialog__close svg { width: 22px; height: 22px; }
.dialog__title { font-weight: 700; font-size: 30px; line-height: 1.4; }
.dialog__done { display: none; }
.dialog.is-done .dialog__form { display: none; }
.dialog.is-done .dialog__done { display: flex; flex-direction: column; gap: 20px; align-items: flex-start; }

/* ---------- フォーム部品 ---------- */
.form { display: flex; flex-direction: column; gap: 36px; }
.field { display: flex; flex-direction: column; gap: 12px; border: 0; margin: 0; padding: 0; min-width: 0; }
.field__label { display: flex; align-items: center; gap: 12px; font-weight: 700; font-size: 16px; padding: 0; }
.req { font-size: 13px; color: #c43d5e; font-weight: 500; }
.opt { font-size: 13px; color: var(--muted); font-weight: 500; }
.input, .textarea {
  width: 100%;
  padding: 18px 20px;
  border: 1px solid var(--line);
  background: #fff;
  font-family: var(--font-mincho);
  font-size: 16px;
  color: var(--ink);
  border-radius: 0;
}
.textarea { min-height: 200px; resize: vertical; line-height: 1.8; }
.input:focus, .textarea:focus { outline: 2px solid var(--ink); outline-offset: 1px; }
.input::placeholder, .textarea::placeholder { color: #5b574f99; }
.chips { display: flex; flex-wrap: wrap; gap: 12px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.chip span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.2;
}
.chip span::before { content: ""; width: 14px; height: 14px; border-radius: 50%; border: 1.5px solid var(--ink); box-sizing: border-box; flex: none; }
.chip input:checked + span { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.chip input:checked + span::before { background: var(--yellow); border-color: var(--yellow); }
.chip input:focus-visible + span { outline: 2px solid var(--ink); outline-offset: 2px; }
.consent { display: flex; align-items: center; gap: 14px; font-size: 15px; }
.consent input { width: 24px; height: 24px; accent-color: var(--ink); margin: 0; }
.form .btn--dark { align-self: flex-start; padding: 22px 56px; font-size: 18px; }

.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-error { color: #c43d5e; font-size: 15px; font-weight: 600; }
.form button[disabled] { opacity: 0.5; cursor: wait; }

/* ---------- プライバシーポリシー ---------- */
.policy { display: flex; flex-direction: column; gap: 16px; font-size: 16px; line-height: 2; }
.policy h2 { font-size: 22px; font-weight: 700; line-height: 1.5; margin-top: 28px; }
.policy ul { list-style: disc; padding-left: 1.4em; }
.policy a { text-underline-offset: 3px; }

/* ---------- 問い合わせ・送信完了ページ ---------- */
.page-main { padding: 72px 0 120px; }
.page-split { display: flex; gap: 96px; }
.page-split__lead { flex: 0 0 440px; display: flex; flex-direction: column; gap: 28px; align-items: flex-start; }
.back-link { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; }
.back-link svg { width: 16px; height: 16px; }
.thanks { display: flex; align-items: center; gap: 64px; }
.thanks__lead { flex: 1; display: flex; flex-direction: column; gap: 32px; }
.thanks__title { font-weight: 700; font-size: 72px; line-height: 1.4; }
.thanks__body { font-weight: 600; font-size: 22px; line-height: 2; }
.thanks__art { position: relative; flex: 0 0 560px; height: 520px; }
.thanks__art img { position: absolute; }
.thanks__note { position: absolute; left: 400px; top: 30px; font-family: var(--font-hand); font-size: 26px; line-height: 1.3; transform: rotate(-6deg); }

/* =========================================================
   タブレット以下
   ========================================================= */
@media (max-width: 1180px) {
  .nav__links a:not(.btn) { display: none; }
  .about__lead { flex-basis: 46%; }
  .exp__lead { flex-basis: 42%; }
  .split__lead { flex-basis: 36%; }
  .partners__side { flex-basis: auto; }
  .join__verb { flex-basis: 240px; font-size: 44px; }
  .voices { grid-template-columns: repeat(3, 1fr); }
  .voice:nth-child(n) { padding-top: 0; }
  .prow__who { flex-basis: auto; }
  .thanks__art { flex-basis: 420px; height: 400px; }
}

/* =========================================================
   スマホ
   ========================================================= */
@media (max-width: 767px) {
  /* 会場 */
  .venue { height: 72vw; }
  .venue__img { object-position: 40% center; }
  .venue-photos { grid-template-columns: 1fr; gap: 20px; margin-top: 48px; }

  :root { --gutter: 20px; }
  body { padding-bottom: 76px; }
  .section { padding: 72px 0; }
  .h-xl { font-size: 36px; }
  .h-lg { font-size: 30px; }
  .h-md { font-size: 26px; }
  .body-text { font-size: 15px; line-height: 2; }
  .btn { padding: 16px 24px; font-size: 15px; }
  .label { font-size: 13px; }

  /* ナビ */
  .nav__inner { padding-top: 12px; padding-bottom: 12px; }
  .brand img { width: 40px; }
  .brand span { font-size: 20px; }
  .nav__links { display: none; }
  .nav__toggle { display: block; }
  .nav.is-open .nav__links {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    padding: 24px var(--gutter) 32px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
  }
  .nav.is-open .nav__links a:not(.btn) { display: block; font-size: 16px; }

  /* HERO：縦に積む */
  .hero__stage { height: auto; display: grid; grid-template-columns: 100%; }
  .hero__stage > * { position: static; top: auto; left: auto; }
  /* 問いの文字と絵を同じマスに重ねる（絵は文字の後ろで薄く、下にいくほど濃く） */
  .hero__copy { grid-area: 1 / 1; position: relative; z-index: 2; width: auto; padding: 40px var(--gutter) 0; gap: 0; }
  .hero__date { margin-top: 28px; font-size: 24px; }
  .hero__title { font-size: 44px; line-height: 1.4; }
  .hero__sub { margin-top: 32px; font-size: 16px; line-height: 2.2; }
  /* スマホでは開催情報のタグと「GCFについて知る」は出さない */
  .hero__meta,
  .hero__ctas .text-link { display: none; }
  .hero__ctas { margin-top: 44px; }
  .hero__ctas .btn { padding: 18px 28px; font-size: 16px; }
  .hero__art {
    display: block;
    grid-area: 1 / 1;
    justify-self: end;
    position: relative !important;
    z-index: 1;
    width: 100vw;
    height: 142vw;
    margin: 40vw -14vw 0 0;
    -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,.38) 0%, rgba(0,0,0,.38) 48%, #000 64%);
    mask-image: linear-gradient(to bottom, rgba(0,0,0,.38) 0%, rgba(0,0,0,.38) 48%, #000 64%);
  }
  .hero__art > * { position: absolute; }
  .hero__art .a-brush { left: 40%; top: 0; width: 62%; height: 58%; }
  .hero__art .a-circle { left: 8%; top: 7%; width: 80%; height: 50%; }
  .hero__art .a-thinker { left: 26%; top: 0; width: 70%; height: 92%; object-fit: contain; object-position: top; }
  .hero__art .a-blob { left: 64%; top: 72%; width: 30%; height: 22%; }
  .hero__art .a-note { left: 68%; top: 80%; white-space: nowrap; font-family: var(--font-hand); font-size: 3.8vw; line-height: 1.3; transform: rotate(-6deg); transform-origin: top left; }
  .hero__art .a-script { left: 42%; top: 64%; font-family: var(--font-script); font-size: 8.5vw; line-height: 1; color: var(--paper); transform: rotate(-12deg); transform-origin: top left; white-space: nowrap; }
  .hero__stage > .px,
  .hero__stage > .spark,
  .hero__stage > .hero__script,
  .hero__stage > .hero__blob-note,
  .hero__stage > .hero__labels,
  .hero__stage > .vrule { display: none; }
  /* 像の足元からタイトル、そのまま線と人へつなげる */
  .hero__wordmark { grid-row: 2; position: relative !important; z-index: 3; margin-top: -41.5vw; padding: 0 var(--gutter); }
  .wordmark { font-size: 19vw; }
  .hero__people { display: block; grid-row: 3; position: relative !important; z-index: 2; height: 78vw; margin-top: 4vw; }
  .hero__people > * { position: absolute; }
  .hero__people .p-line { left: 2%; top: 0; width: 46%; height: 40%; }
  .hero__people .p-people { right: 0; top: 0; width: 66%; height: 86%; object-fit: contain; object-position: right top; }
  .hero__people .p-hand { left: var(--gutter); bottom: 2%; font-family: var(--font-hand); font-size: 15px; line-height: 1.5; transform: rotate(-4deg); white-space: nowrap; }
  .hero__people .p-labels { display: none; }
  .hero__stage > .hero__hand { display: none; }

  /* 2カラム→1カラム */
  .about__top,
  .exp,
  .split,
  .partners,
  .closing__row,
  .page-split,
  .thanks { flex-direction: column; gap: 40px; align-items: stretch; }
  .about__lead, .exp__lead, .split__lead, .page-split__lead, .partners__side { flex: none; }
  .about__story { padding-top: 0; }
  .about__story-lead { font-size: 17px; }
  .about__story-lead br { display: none; }
  .views { grid-template-columns: 1fr; gap: 32px; margin-top: 56px; }
  .view__title { font-size: 21px; }

  .questions { grid-template-columns: 1fr 1fr; gap: 32px 20px; margin-top: 48px; }
  .q:nth-child(n) { padding-top: 0; }
  .q:nth-child(even) { padding-top: 32px; }
  .q__text { font-size: 19px; }

  .takeaway { gap: 20px; padding: 24px 0; }
  .takeaway__num { flex-basis: 56px; font-size: 48px; }
  .takeaway__title { font-size: 21px; }
  .takeaway__body { font-size: 14px; }
  .dot { width: 16px; height: 16px; }

  .table__row { gap: 16px; padding: 18px 0; }
  .table__key { flex-basis: 76px; font-size: 13px; }
  .table__val { font-size: 16px; }

  .program { margin-top: 56px; }
  .program__head { flex-direction: column; align-items: flex-start; gap: 8px; margin-bottom: 24px; }
  .program__title { font-size: 26px; }
  .program__meta { font-size: 15px; }
  .prow { flex-wrap: wrap; gap: 6px 14px; padding: 16px 0; }
  .prow--main { padding: 24px 0; }
  .prow__time { flex: 0 0 auto; font-size: 17px; }
  .prow--main .prow__time { font-size: 28px; }
  .prow__part { flex: 0 0 auto; }
  .part-badge { font-size: 13px; padding: 5px 12px; }
  .prow__body { flex: 1 1 100%; }
  .prow:not(.prow--main) .prow__body { flex: 1 1 auto; }
  .prow--main .prow__item { font-size: 20px; }
  .prow__desc { font-size: 14px; }
  .prow__who { flex: 1 1 100%; justify-content: flex-start; font-size: 13px; }
  .prow:not(.prow--main) .prow__who { flex: 0 0 auto; }

  .head-row { flex-direction: column; align-items: flex-start; gap: 24px; }
  .voices { grid-template-columns: 1fr; gap: 28px; margin-top: 48px; }
  .voice { display: grid; grid-template-columns: 72px 1fr; column-gap: 18px; row-gap: 6px; align-items: center; }
  .voice:nth-child(n) { padding-top: 0; }
  .voice__photo { grid-row: span 2; width: 72px; height: 72px; }
  .voice__quote br { display: none; }
  .voice__photo svg { width: 30px; height: 30px; }
  .voice__quote { font-size: 16px; }
  .voice__role { font-size: 12px; }
  .voices + .note { margin-top: 40px; font-size: 12px; }

  .join { margin-top: 40px; }
  .join__row { flex-wrap: wrap; gap: 8px 16px; padding: 28px 0; }
  .join__verb { flex: 1 1 100%; font-size: 32px; }
  .join__who { flex: 1 1 100%; font-size: 15px; margin-bottom: 8px; }

  .people { grid-template-columns: 1fr 1fr; gap: 28px 16px; margin-top: 48px; }
  .person__face { height: auto; aspect-ratio: 1 / 1; }
  .person__face svg { width: 40px; height: 40px; }
  .person__quote { font-size: 16px; }
  .person__name { font-size: 16px; }
  .person__role { font-size: 12px; }

  .closing { padding-top: 72px; }
  .closing__title { font-size: 32px; }
  .footer-bar { flex-direction: column; align-items: flex-start; margin-top: 56px; }
  .footer-brand__badge { width: 48px; height: 48px; }
  .footer-brand__badge img { width: 30px; }
  .footer-brand span { font-size: 20px; }
  .footer-links { font-size: 13px; gap: 10px 20px; }

  .sticky-cta {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 60;
    padding: 12px var(--gutter) calc(12px + env(safe-area-inset-bottom));
    background: var(--paper);
    border-top: 1px solid var(--line);
  }
  .sticky-cta { transform: translateY(110%); transition: transform 0.25s ease; }
  .sticky-cta.is-visible { transform: none; }
  .sticky-cta .btn { width: 100%; justify-content: center; padding: 16px; font-size: 16px; }
  .page-noticky { padding-bottom: 0; }

  .dialog__inner { padding: 44px 20px 28px; }
  .dialog__title { font-size: 24px; }

  .page-main { padding: 40px 0 72px; }
  .chip span { padding: 12px 16px; font-size: 14px; }
  .form .btn--dark { align-self: stretch; justify-content: center; }
  .thanks__title { font-size: 40px; }
  .thanks__body { font-size: 17px; }
  .thanks__art { flex: none; width: 100%; height: 88vw; }
  .thanks__art img:first-child { left: 8% !important; top: 0 !important; width: 82% !important; height: auto !important; }
  .thanks__art img:nth-child(2) { left: 0 !important; top: 8% !important; width: 92% !important; height: auto !important; }
  .thanks__note { left: 68%; top: 0; font-size: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}