/* the ate — 公式サイト */
:root {
  --bg: #f3f2f2;
  --surface: #eae9e9;
  --text: #201e1d;
  --divider: rgba(32, 30, 29, .4);
  --n200: #eae7e7;
  --n300: #d7d3d3;
  --n700: #605d5d;
  --n800: #444141;
  --pink: #b5155a;
  --rule-light: rgba(255, 255, 255, .85);
  --grad: linear-gradient(120deg, #0fb2c2 0%, #7cc2ce 36%, #c9bcc9 60%, #ee2f7c 100%);
  --grad-soft: linear-gradient(120deg, #0fb2c2, #c9bcc9 60%, #ee2f7c);
  --font-en: "Archivo", system-ui, sans-serif;
  --font-ja: "Noto Sans JP", system-ui, sans-serif;
  --nav-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--font-ja); font-size: 15px; line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: var(--pink); text-underline-offset: 3px; }
a:hover { color: var(--text); }
h1, h2, h3, p { margin: 0; }
button { font: inherit; color: inherit; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--pink); outline-offset: 2px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.en { font-family: var(--font-en); }
.arrow { flex: none; }

@keyframes drift { 0% { background-position: 0% 40%; } 100% { background-position: 100% 60%; } }
.grad-bg {
  color: #fff; background: var(--grad); background-size: 220% 220%;
  animation: drift 16s ease-in-out infinite alternate;
}
.placeholder {
  background: repeating-linear-gradient(135deg, var(--n300) 0 10px, var(--n200) 10px 20px);
  display: flex; align-items: flex-end; padding: 12px;
  font: 11px ui-monospace, Menlo, monospace; color: var(--n800);
}
.grayscale { filter: grayscale(1) contrast(1.08); }

/* ---------- nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 20; height: var(--nav-h);
  display: flex; align-items: center; gap: 28px; padding: 0 28px;
  font-weight: 700; font-size: 13px; color: #fff;
  border-bottom: 2px solid var(--rule-light);
  transition: background .3s, color .3s, border-color .3s;
}
.nav.is-scrolled, .nav.is-open { background: var(--bg); color: var(--text); border-bottom-color: var(--text); }
.nav-logo { display: flex; align-items: center; height: var(--nav-h); margin-right: auto; }
.nav-logo img { height: 30px; width: auto; }
.nav-logo .logo-dark { display: none; }
.nav.is-scrolled .logo-light, .nav.is-open .logo-light { display: none; }
.nav.is-scrolled .logo-dark, .nav.is-open .logo-dark { display: block; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: inherit; text-decoration: none; }
.nav-links a:hover { text-decoration: underline; }
.nav-links .nav-cta {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  min-width: 140px; padding: 9px 14px; text-decoration: none;
  background: #fff; color: var(--text);
}
.nav-links .nav-cta:hover { color: var(--text); text-decoration: none; }
.nav.is-scrolled .nav-links .nav-cta, .nav.is-open .nav-links .nav-cta { background: var(--text); color: var(--bg); }
.nav-toggle {
  display: none; width: 44px; height: 44px; border: 2px solid currentColor;
  background: transparent; cursor: pointer; padding: 0;
  align-items: center; justify-content: center;
}

/* ---------- hero ---------- */
.hero { position: relative; padding-top: var(--nav-h); }
.hero-top, .hero-bottom, .hero-word { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); }
.hero-top { min-height: 340px; }
.hero-copy {
  grid-column: span 4; padding: 32px 28px;
  font-weight: 900; font-size: clamp(34px, 5vw, 72px); line-height: 1.25; letter-spacing: .02em;
}
.hero-photo {
  grid-column: span 2; border-left: 2px solid var(--rule-light); border-right: 2px solid var(--rule-light);
  background: repeating-linear-gradient(135deg, rgba(255,255,255,.3) 0 10px, rgba(255,255,255,.12) 10px 20px);
  display: flex; align-items: flex-end; padding: 14px; font: 12px ui-monospace, Menlo, monospace;
}
.hero-scroll {
  display: flex; align-items: flex-end; padding: 14px 18px;
  font-family: var(--font-en); font-weight: 800; font-size: 11px; letter-spacing: .14em;
}
.hero-word {
  border-top: 2px solid var(--rule-light); border-bottom: 2px solid var(--rule-light);
  font-family: var(--font-en); font-weight: 800; font-size: 15.6vw; line-height: 1; overflow: hidden;
}
.hero-word > span { padding: 1.6vw 0 1.4vw 1.4vw; border-right: 2px solid var(--rule-light); }
.hero-word > span:last-child { border-right: 0; }
.hero-word span span { display: block; }
.hero-word .on { background: rgba(255,255,255,.95); color: #d81d6b; }
.hero-word .outline { color: transparent; -webkit-text-stroke: 2px #fff; }
.hero-next { grid-column: span 3; padding: 22px 28px; }
.kicker { font-family: var(--font-en); font-weight: 800; font-size: 12px; letter-spacing: .12em; }
.hero-next-title { font-weight: 900; font-size: clamp(26px, 3.1vw, 44px); line-height: 1.3; }
.hero-next-meta { font-weight: 700; font-size: 13px; }
.hero-name {
  grid-column: span 3; padding: 22px 18px; font-weight: 700; font-size: 14px; line-height: 1.8;
  border-left: 2px solid var(--rule-light); border-right: 2px solid var(--rule-light);
}
.hero-cta-wrap { display: flex; align-items: flex-end; padding: 18px; }
.hero-cta {
  width: 100%; display: flex; justify-content: space-between; gap: 8px;
  background: #fff; color: var(--text); padding: 14px 16px;
  font-weight: 900; font-size: 14px; text-decoration: none;
}
.hero-cta:hover { background: var(--text); color: #fff; }

/* ---------- sections ---------- */
.sec {
  scroll-margin-top: var(--nav-h);
  display: grid; grid-template-columns: repeat(7, minmax(0, 1fr));
  border-bottom: 2px solid var(--text);
}
.sec-head { grid-column: span 2; padding: 40px 28px; border-right: 2px solid var(--divider); }
.sec-num { font-family: var(--font-en); font-weight: 800; font-size: 12px; letter-spacing: .12em; color: var(--pink); }
.sec-title {
  font-family: var(--font-en); font-weight: 900; font-size: clamp(32px, 3.6vw, 52px);
  line-height: 1; margin: 10px 0 8px; letter-spacing: .06em; white-space: nowrap;
}
.sec-sub { font-weight: 700; font-size: 14px; }
.sec-body { grid-column: span 5; }

/* next */
.next-body { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); }
.next-flyer { grid-column: span 2; align-self: start; border-right: 2px solid var(--divider); }
.next-flyer img { width: 100%; height: auto; aspect-ratio: 1856 / 2464; object-fit: cover; }
.next-info { grid-column: span 3; padding: 40px 32px; display: flex; flex-direction: column; gap: 24px; }
.next-label { font-weight: 700; font-size: 13px; color: var(--n700); }
.next-title { font-weight: 900; font-size: clamp(32px, 4vw, 60px); line-height: 1.2; }
.spec { display: grid; grid-template-columns: 112px 1fr; border-top: 2px solid var(--text); font-size: 14px; margin: 0; }
.spec dt, .spec dd { padding: 12px 0; border-bottom: 1px solid var(--divider); margin: 0; }
.spec dt { font-weight: 700; }
.price-list { display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; margin: 0; padding: 0; list-style: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn-line, .btn-solid {
  display: flex; justify-content: space-between; align-items: center; gap: 40px; min-width: 240px;
  font-weight: 900; font-size: 14px; text-decoration: none; cursor: pointer; font-family: var(--font-ja);
}
.btn-line { padding: 12px 14px; border: 2px solid var(--text); color: var(--text); background: transparent; }
.btn-line:hover { background: var(--surface); color: var(--text); }
.btn-solid { padding: 14px 16px; border: 0; background: var(--text); color: var(--bg); }
.btn-solid:hover { background: var(--n800); color: var(--bg); }
.btn-solid[aria-disabled="true"] { opacity: .35; cursor: not-allowed; }
.btn-plain {
  display: inline-flex; align-items: center; padding: 10px 14px; min-height: 44px;
  border: 1px solid var(--divider); background: transparent; cursor: pointer;
  font-weight: 700; font-size: 14px; font-family: var(--font-ja);
}
.btn-plain:hover { background: rgba(32, 30, 29, .07); }

/* archive */
.archive-body { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.archive-card { border-right: 2px solid var(--divider); }
.archive-card:last-child { border-right: 0; }
.archive-card .placeholder { aspect-ratio: 4 / 3; }
.archive-img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; }
.card-text { padding: 16px 18px 28px; border-top: 2px solid var(--divider); }
.card-year { font-family: var(--font-en); font-weight: 800; font-size: 11px; letter-spacing: .1em; color: var(--n700); }
.card-title { font-weight: 900; font-size: 18px; }

/* members */
.members-body { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.member { border-right: 2px solid var(--divider); transition: background .35s, color .35s; }
.member:last-child { border-right: 0; }
.member-photo { overflow: hidden; border-bottom: 2px solid var(--divider); }
.member-photo .placeholder { aspect-ratio: 3 / 4; transition: transform .5s cubic-bezier(.2,.7,.2,1); }
.member-text { padding: 16px 16px 24px; display: flex; flex-direction: column; gap: 6px; }
.member-no { font-family: var(--font-en); font-weight: 800; font-size: 11px; letter-spacing: .08em; transition: letter-spacing .5s; }
.member-role { font-weight: 900; font-size: 22px; }
.member-name { font-size: 13px; font-weight: 500; }
.member:hover, .member:focus-within { background: var(--grad-soft); color: #fff; }
.member:hover .member-photo .placeholder { transform: scale(1.05); }
.member:hover .member-no { letter-spacing: .24em; }

/* about */
.about-body { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); }
.about-full { grid-column: 1 / -1; grid-template-columns: repeat(7, minmax(0, 1fr)); }
.about-full .about-text {
  grid-column: span 4; padding: 48px 40px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
}
.about-head { display: flex; align-items: center; justify-content: center; flex-wrap: nowrap; gap: 12px 20px; margin-bottom: 28px; }
.about-full .about-text .about-lead { margin: 0; text-align: left; white-space: nowrap; }
@media (max-width: 1180px) { .about-head { flex-wrap: wrap; } }
.about-head .about-sub {
  display: inline-flex; flex-direction: column; margin: 0 0 28px; padding: 14px 20px 16px;
  background: var(--text); color: var(--bg); text-align: left; line-height: 1;
}
.about-sub .ja { font-weight: 900; font-size: clamp(16px, 1.5vw, 22px); letter-spacing: .08em; }
.about-sub .en { font-family: var(--font-en); font-weight: 900; font-size: clamp(26px, 2.7vw, 42px); letter-spacing: .01em; margin-top: 8px; }
.about-copy p { margin-left: auto; margin-right: auto; max-width: none; }
.about-full .formula { grid-column: span 3; padding: 44px 48px; }
.about-text { grid-column: span 3; padding: 40px 32px; border-right: 2px solid var(--divider); }
.about-text .about-lead { font-weight: 900; font-size: clamp(26px, 3vw, 44px); line-height: 1.35; margin-bottom: 24px; }
.about-sub {
  display: inline-block; margin: 0 0 28px; padding: 6px 12px;
  background: var(--text); color: var(--bg); font-weight: 900; font-size: 15px; letter-spacing: .04em;
}
.about-sub .en { font-weight: 800; }
.about-copy p { font-size: 15px; line-height: 2; max-width: 600px; text-wrap: pretty; margin-bottom: 1em; }
.about-copy .about-call { font-weight: 900; font-size: 17px; margin: 1.2em 0 0; }
.about-link { margin-top: 20px; width: fit-content; }

/* theater = the ate + er */
.formula {
  grid-column: span 2; padding: 40px 28px; display: flex; flex-direction: column;
  justify-content: space-between; gap: 32px; background: var(--surface);
}
.f-kicker { font-family: var(--font-en); font-weight: 800; font-size: 13px; letter-spacing: .2em; color: var(--n700); }
.f-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); row-gap: 12px; width: 100%; }
.f-grid .ch {
  grid-row: 1; font-family: var(--font-en); font-weight: 900; font-size: clamp(52px, 6.4vw, 112px);
  line-height: .9; text-align: center; padding-bottom: 10px;
}
.f-grid .ch.shared { color: var(--pink); }
.f-bar { height: 14px; }
.f-bar.is-ate { grid-row: 2; grid-column: 1 / 7; background: var(--grad-soft); }
.f-label { display: flex; align-items: baseline; gap: 12px; white-space: nowrap; font-size: 15px; font-weight: 700; }
.f-label b { font-size: clamp(20px, 1.8vw, 28px); font-weight: 900; }
.f-label.is-ate { grid-row: 3; grid-column: 1 / 6; }
.f-bar.is-er { grid-row: 4; grid-column: 6 / 8; background: var(--text); margin-top: 20px; }
.f-label.is-er { grid-row: 5; grid-column: 2 / 8; justify-content: flex-end; }
.f-result { border-top: 2px solid var(--text); padding-top: 24px; display: flex; flex-direction: column; gap: 8px; }
.f-result .f-lead { font-weight: 900; font-size: clamp(20px, 1.8vw, 28px); line-height: 1.3; }
.f-result strong { font-weight: 900; font-size: clamp(34px, 3.8vw, 60px); line-height: 1.15; }

/* news */
.news-body { padding: 28px 32px 40px; }
.news-list { list-style: none; margin: 0; padding: 0; }
.news-item {
  display: grid; grid-template-columns: 120px 120px 1fr 24px; align-items: center; gap: 16px;
  padding: 18px 8px; border-bottom: 1px solid var(--divider); color: var(--text); text-decoration: none;
}
.news-item:hover { background: var(--surface); color: var(--text); }
.news-date { font-family: var(--font-en); font-weight: 600; font-size: 13px; }
.tag { justify-self: start; font-size: 11px; letter-spacing: .02em; padding: 3px 10px; background: #f8f4f4; color: var(--n800); }
.news-title { font-weight: 700; font-size: 15px; }

/* ticket */
.ticket .sec-head { border-right-color: var(--rule-light); }
.ticket .sec-num { color: #fff; }
.ticket-name { font-weight: 900; font-size: 22px; margin-top: 32px; }
.ticket-meta { font-size: 12px; font-weight: 700; margin-top: 8px; }
.ticket-body { padding: 40px 32px; }
.ticket-box { background: var(--bg); color: var(--text); }
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-bottom: 2px solid var(--text); list-style: none; margin: 0; padding: 0; }
.steps li {
  padding: 14px 18px; font-weight: 700; font-size: 13px; display: flex; gap: 10px; align-items: baseline;
  border-right: 2px solid var(--divider); transition: background .3s, color .3s;
}
.steps li:last-child { border-right: 0; }
.steps li b { font-family: var(--font-en); font-weight: 800; }
.steps li.is-done { background: var(--text); color: var(--bg); }
.panel[hidden] { display: none !important; }
.select-grid { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); }
.select-main { padding: 24px; border-right: 2px solid var(--divider); display: flex; flex-direction: column; gap: 20px; }
.field-label { font-size: 12px; font-weight: 700; margin-bottom: 8px; }
fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
legend { padding: 0; }
.dates {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  border-top: 1px solid var(--divider); border-left: 1px solid var(--divider);
}
.date-opt {
  font: 700 14px var(--font-en), var(--font-ja); text-align: left; padding: 14px 12px; min-height: 48px;
  border: 0; border-right: 1px solid var(--divider); border-bottom: 1px solid var(--divider);
  cursor: pointer; background: transparent;
}
.date-opt:hover { background: var(--surface); }
.date-opt[aria-pressed="true"] { background: var(--text); color: var(--bg); }
.seats { border-top: 1px solid var(--divider); }
.seat { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--divider); }
.seat-name { font-weight: 700; }
.seat-price { font-size: 12px; color: var(--n700); }
.stepper { display: flex; align-items: center; border: 1px solid var(--divider); }
.stepper button { width: 44px; height: 44px; border: 0; background: transparent; font-size: 18px; cursor: pointer; }
.stepper button:hover { background: var(--n200); }
.stepper output { width: 40px; text-align: center; font-family: var(--font-en); font-weight: 800; }
.summary { padding: 24px; display: flex; flex-direction: column; gap: 12px; }
.summary-date { font-family: var(--font-en); font-weight: 800; font-size: 18px; }
.summary-total { border-top: 2px solid var(--text); padding-top: 12px; display: flex; justify-content: space-between; align-items: baseline; }
.summary-total b { font-family: var(--font-en); font-weight: 900; font-size: 32px; }
.summary .btn-solid { margin-top: auto; min-width: 0; gap: 12px; }
.hint { font-size: 12px; color: var(--n700); min-height: 18px; }
.form-grid { padding: 24px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 24px; }
.field label { display: block; font-size: 12px; margin-bottom: 5px; color: rgba(32, 30, 29, .7); }
.input {
  width: 100%; min-height: 44px; padding: 8px 10px; font: inherit; font-size: 16px; color: var(--text);
  caret-color: var(--pink); background: var(--surface); border: 1px solid var(--divider); border-radius: 0;
}
.input:hover { border-color: rgba(32, 30, 29, .55); }
.input:focus-visible { border-color: var(--pink); outline-offset: 0; }
textarea.input { min-height: 140px; resize: vertical; }
.err { font-size: 12px; color: var(--pink); min-height: 18px; margin-top: 4px; }
.form-actions {
  grid-column: span 2; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  border-top: 2px solid var(--divider); padding-top: 18px;
}
.confirm { padding: 24px; }
.confirm .spec { grid-template-columns: 140px 1fr; }
.confirm .form-actions { border-top: 0; }
.done-grid { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); }
.done-main { padding: 32px 24px; border-right: 2px solid var(--divider); }
.done-title { font-weight: 900; font-size: 32px; line-height: 1.3; margin: 8px 0 12px; }
.done-side { padding: 32px 24px; display: flex; flex-direction: column; gap: 8px; }
.res-no { font-family: var(--font-en); font-weight: 900; font-size: 34px; }
.done-side .btn-plain { margin-top: auto; align-self: flex-start; }
.form-error { font-size: 13px; color: var(--pink); font-weight: 700; }

/* contact */
.contact-body { padding: 40px 32px; }
.line-box { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--divider); }
.line-label { font-weight: 900; font-size: 15px; margin-bottom: 12px; }
.line-qr { width: 148px; height: auto; background: #fff; padding: 6px; border: 1px solid var(--divider); }
.contact-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 24px; max-width: 820px; }
.span-2 { grid-column: span 2; }
.seg { display: flex; flex-wrap: wrap; border: 1px solid var(--divider); width: fit-content; }
.seg label { position: relative; cursor: pointer; }
.seg input { position: absolute; opacity: 0; width: 0; height: 0; }
.seg span {
  display: block; padding: 11px 14px; font-weight: 700; font-size: 13px;
  border-right: 1px solid var(--divider);
}
.seg label:last-child span { border-right: 0; }
.seg input:checked + span { background: var(--text); color: var(--bg); }
.seg input:focus-visible + span { outline: 2px solid var(--pink); outline-offset: -2px; }
.seg label:hover input:not(:checked) + span { background: var(--surface); }
.sent { border-top: 2px solid var(--text); padding-top: 24px; max-width: 640px; }
.sent h3 { font-weight: 900; font-size: 28px; margin-bottom: 8px; }
.sent p { font-size: 14px; line-height: 1.9; margin-bottom: 16px; }
.hp { display: none; }

/* footer */
.footer { background: var(--text); color: var(--bg); }
.sns { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-bottom: 2px solid var(--n700); list-style: none; margin: 0; padding: 0; }
.sns li { border-right: 2px solid var(--n700); }
.sns li:last-child { border-right: 0; }
.sns a {
  display: flex; justify-content: space-between; padding: 22px 28px; color: inherit; text-decoration: none;
  font-family: var(--font-en); font-weight: 800; font-size: 16px;
}
.sns a:hover { background: var(--n800); color: #fff; }
.footer-brand {
  display: flex; flex-direction: column; align-items: center; gap: clamp(16px, 2vw, 28px);
  padding: clamp(48px, 6vw, 96px) 28px; color: #fff; text-align: center;
  background: linear-gradient(105deg, #a6effd 0%, #86cff8 28%, #b6bff9 50%, #e7a9f3 72%, #fea4e3 100%);
}
.footer-copy { font-weight: 900; font-size: clamp(18px, 2vw, 28px); letter-spacing: .14em; }
.footer-logo { width: min(620px, 72%); height: auto; }
.footer-bottom { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 20px 28px; font-size: 12px; border-top: 2px solid var(--n700); }

/* ---------- reveal ---------- */
.js [data-rise] { opacity: 0; transform: translateY(28px); transition: opacity .9s ease, transform .9s cubic-bezier(.2,.7,.2,1); }
.js [data-open] { opacity: 0; letter-spacing: -.3em; transition: opacity .9s ease, letter-spacing 1.4s cubic-bezier(.2,.7,.2,1); }
.js .is-in[data-rise] { opacity: 1; transform: none; }
.js .is-in[data-open] { opacity: 1; letter-spacing: .06em; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .grad-bg { animation: none; }
  .js [data-rise], .js [data-open] { opacity: 1; transform: none; letter-spacing: .06em; transition: none; }
  .member, .member-photo .placeholder, .member-no { transition: none; }
}

/* ---------- tablet / phone ---------- */
@media (max-width: 1080px) {
  .nav { gap: 18px; padding: 0 20px; }
  .nav-links { gap: 18px; }
}
@media (max-width: 900px) {
  .nav { padding: 0 16px; }
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); color: var(--text); padding: 8px 16px 24px; overflow-y: auto;
    font-size: 16px; display: none;
  }
  .nav.is-open .nav-links { display: flex; }
  .nav-links a { padding: 16px 4px; border-bottom: 1px solid var(--divider); }
  .nav-links .nav-cta { margin-top: 16px; padding: 16px; border: 0; }

  .hero-top { grid-template-columns: 1fr; min-height: 0; }
  .hero-copy { grid-column: auto; padding: 28px 16px; font-size: clamp(30px, 9vw, 52px); }
  .hero-photo { grid-column: auto; border: 0; border-top: 2px solid var(--rule-light); }
  .hero-scroll { display: none; }
  .hero-bottom { grid-template-columns: 1fr; }
  .hero-next, .hero-name { grid-column: auto; padding: 20px 16px; }
  .hero-name { border: 0; border-top: 2px solid var(--rule-light); }
  .hero-cta-wrap { display: none; }
  .hero-photo { min-height: 160px; }

  .sec { display: block; }
  .sec-head { padding: 32px 16px 20px; border-right: 0; border-bottom: 2px solid var(--divider); }
  .ticket .sec-head { border-bottom-color: var(--rule-light); }
  .next-body, .about-body { grid-template-columns: 1fr; }
  .next-flyer { border-right: 0; border-bottom: 2px solid var(--divider); }
  .next-flyer img { max-width: 520px; margin: 0 auto; }
  .next-info, .about-text { padding: 28px 16px; }
  .formula, .about-full .formula { padding: 32px 16px; }
  .about-full .about-text { padding: 32px 16px; }
  .br-pc { display: none; }
  .about-head { flex-wrap: wrap; }
  .about-copy p { text-wrap: balance; }
  .about-link { width: 100%; }
  .about-text { border-right: 0; border-bottom: 2px solid var(--divider); }
  .archive-body { grid-template-columns: 1fr; }
  .archive-card { border-right: 0; border-bottom: 2px solid var(--divider); }
  .archive-card:last-child { border-bottom: 0; }
  .members-body { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .member:nth-child(2n) { border-right: 0; }
  .member:nth-child(-n+2) { border-bottom: 2px solid var(--divider); }
  .news-body { padding: 12px 16px 28px; }
  .news-item { grid-template-columns: auto 1fr 24px; gap: 6px 12px; padding: 16px 4px; }
  .news-item .news-title { grid-column: 1 / 3; grid-row: 2; }
  .news-item .arrow { grid-row: 1 / 3; grid-column: 3; }
  .ticket-body { padding: 24px 16px; }
  .ticket-name { margin-top: 20px; }
  .select-grid, .done-grid { grid-template-columns: 1fr; }
  .select-main, .done-main { border-right: 0; border-bottom: 2px solid var(--divider); }
  .select-main, .summary, .form-grid, .confirm { padding: 20px 16px; }
  .steps li { padding: 12px 10px; font-size: 12px; flex-direction: column; gap: 2px; }
  .form-grid, .contact-form { grid-template-columns: 1fr; }
  .form-actions, .span-2 { grid-column: auto; }
  .contact-body { padding: 28px 16px; }
  .line-box { display: flex; align-items: center; gap: 16px; }
  .line-label { margin: 0; }
  .line-qr { width: 120px; }
  .btn-line, .btn-solid { min-width: 0; width: 100%; }
  .confirm .spec, .spec { grid-template-columns: 96px 1fr; }
  .sns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sns li:nth-child(2n) { border-right: 0; }
  .sns li:nth-child(-n+2) { border-bottom: 2px solid var(--n700); }
  .sns a { padding: 18px 16px; }
  .footer-bottom { padding: 18px 16px; }
}
@media (max-width: 480px) {
  .members-body { grid-template-columns: 1fr; }
  .member { border-right: 0; border-bottom: 2px solid var(--divider); }
  .member:last-child { border-bottom: 0; }
  .member-photo .placeholder { aspect-ratio: 4 / 3; }
  .done-title { font-size: 26px; }
}