:root {
  --seats-blue: #0b438d;
  --seats-blue-dark: #082f68;
  --seats-gold: #d8a83e;
  --seats-gold-pale: #f6e9bf;
  --seats-sky: #eaf6fb;
  --seats-ink: #112f51;
  --seats-paper: #fbfaf6;
}

.seatsPreview { color: var(--seats-ink); background: var(--seats-paper); }
.seatsMain {
  overflow: clip;
  background:
    radial-gradient(circle at 8% 10%, rgba(107, 193, 223, .17), transparent 29rem),
    radial-gradient(circle at 92% 52%, rgba(216, 168, 62, .10), transparent 30rem),
    linear-gradient(180deg, #f7fbfc, #fff 28rem, #fbfaf6);
}

.seatsPageShell {
  display: grid;
  grid-template-columns: 220px minmax(0, 1080px);
  gap: clamp(30px, 3.5vw, 52px);
  width: min(1370px, calc(100% - 48px));
  margin: 0 auto;
}

.seatsPageNav {
  position: sticky;
  top: 110px;
  align-self: start;
  max-height: calc(100vh - 135px);
  margin-top: clamp(58px, 6vw, 88px);
  padding: 23px 15px 17px;
  overflow-y: auto;
  border-radius: 15px;
  background: rgba(255,255,255,.86);
  box-shadow: 0 16px 45px rgba(8,47,104,.1);
  backdrop-filter: blur(12px);
}

.seatsPageNav__label { margin: 0 10px 13px; color: var(--seats-gold); font-family: "acumin-pro-condensed", sans-serif; font-size: 12px; font-weight: 700; letter-spacing: .16em; }
.seatsPageNav__links { display: grid; gap: 3px; }
.seatsPageNav a { display: flex; align-items: center; gap: 10px; min-height: 42px; padding: 8px 10px; border-radius: 8px; color: #52677f; font-size: 13px; font-weight: 700; line-height: 1.45; transition: color .2s, background-color .2s; }
.seatsPageNav a span { flex: 0 0 29px; color: #8091a5; font-family: "acumin-pro-condensed", sans-serif; font-size: 12px; letter-spacing: .06em; }
.seatsPageNav a.is-sub { min-height: 36px; padding-top: 6px; padding-bottom: 6px; padding-left: 18px; font-size: 12px; }
.seatsPageNav a:hover { color: var(--seats-blue); background: var(--seats-sky); }
.seatsPageNav a.is-active { color: #fff; background: var(--seats-blue); }
.seatsPageNav a.is-active span { color: #bfe5f4; }

.seatsArticle {
  width: 100%;
  margin: 0;
  padding: clamp(58px, 6vw, 88px) 0 clamp(82px, 9vw, 125px);
}

.seatsArticle__header { max-width: 850px; margin: 0 auto clamp(52px, 6vw, 78px); text-align: center; }
.seatsArticle__eyebrow,
.seatsSection__heading p {
  color: var(--seats-gold);
  font-family: "acumin-pro-condensed", sans-serif;
  font-weight: 700;
  letter-spacing: .16em;
}
.seatsArticle__eyebrow { font-size: 15px; }
.seatsArticle__badge {
  display: inline-block;
  margin-top: 22px;
  padding: 8px 18px;
  border: 1px solid rgba(216,168,62,.62);
  border-radius: 999px;
  color: #76550d;
  background: rgba(246,233,191,.65);
  font-size: 14px;
  font-weight: 700;
}
.seatsArticle h1 {
  margin-top: 24px;
  color: var(--seats-blue);
  font-size: clamp(34px, 5vw, 58px);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: .04em;
}
.seatsArticle__lead { margin-top: 22px; font-size: 19px; line-height: 1.85; }

.seatsSection { padding: clamp(54px, 6vw, 82px) 0; border-top: 1px solid rgba(11,67,141,.16); }
.seatsSection__heading { display: flex; align-items: center; gap: 17px; margin-bottom: 28px; }
.seatsSection__heading > span {
  display: grid;
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--seats-blue);
  font-family: "acumin-pro-condensed", sans-serif;
  font-size: 14px;
  font-weight: 700;
}
.seatsSection__heading p { font-size: 13px; }
.seatsSection__heading h2 { margin-top: 4px; color: var(--seats-blue); font-size: clamp(28px, 3.5vw, 42px); font-weight: 800; letter-spacing: .05em; }

.seatsPeriod {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: clamp(22px, 4vw, 52px);
  padding: clamp(32px, 4vw, 50px);
  border-radius: 24px;
  color: #fff;
  background: linear-gradient(135deg, var(--seats-blue-dark), #1269a5);
  box-shadow: 0 26px 70px rgba(8,47,104,.18);
}
.seatsPeriod__date { text-align: center; }
.seatsPeriod__date span,
.seatsPeriod__date em { display: block; font-family: "acumin-pro-condensed", sans-serif; font-weight: 700; letter-spacing: .14em; }
.seatsPeriod__date span { color: #edd17d; font-size: 16px; }
.seatsPeriod__date strong { display: inline-block; margin: 7px 0 3px; font-family: "acumin-pro-condensed", sans-serif; font-size: clamp(54px, 8vw, 90px); line-height: 1; letter-spacing: .02em; }
.seatsPeriod__date em { font-size: 15px; font-style: normal; }
.seatsPeriod__arrow { color: #edd17d; font-size: clamp(36px, 5vw, 60px); }
.seatsPeriod__ja { margin-top: 22px; color: var(--seats-blue); font-size: 22px; font-weight: 800; text-align: center; }
.seatsPeriod__note { max-width: 700px; margin: 14px auto 0; padding: 13px 22px; border-radius: 10px; color: #7a5610; background: var(--seats-gold-pale); font-size: 16px; font-weight: 700; text-align: center; }

.seatsMethodGrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.seatsMethodCard {
  position: relative;
  min-height: 285px;
  padding: 35px 24px 28px;
  overflow: hidden;
  border: 1px solid rgba(11,67,141,.17);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(8,47,104,.08);
  text-align: center;
}
.seatsMethodCard__number { position: absolute; top: 18px; left: 20px; color: var(--seats-gold); font-family: "acumin-pro-condensed", sans-serif; font-size: 14px; font-weight: 700; letter-spacing: .1em; }
.seatsMethodCard__icon { display: grid; width: 82px; height: 82px; margin: 7px auto 20px; place-items: center; border-radius: 50%; background: var(--seats-sky); }
.seatsMethodCard svg { width: 47px; fill: none; stroke: var(--seats-blue); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.seatsMethodCard h3 { color: var(--seats-blue); font-size: 27px; font-weight: 800; letter-spacing: .04em; }
.seatsMethodCard p { margin-top: 15px; font-size: 16px; line-height: 1.8; }
.seatsMethodNote { margin-top: 22px; padding: 21px 28px; border-left: 5px solid var(--seats-gold); background: var(--seats-sky); text-align: center; }
.seatsMethodNote p { color: var(--seats-blue); font-size: 18px; font-weight: 800; }
.seatsMethodNote small { display: block; margin-top: 8px; color: #52677f; font-size: 14px; }

.seatsSection--details { padding-bottom: 0; }
.seatsDetailContent { font-size: 16px; line-height: 1.9; }
.seatsDetailContent__intro { padding: 28px 32px; border-left: 5px solid var(--seats-gold); background: #fff; box-shadow: 0 14px 42px rgba(8,47,104,.07); }
.seatsDetailContent__intro strong,
.seatsDetailBlock strong { color: var(--seats-blue); }

.seatsSummaryTable { margin-top: 30px; overflow: hidden; border: 1px solid rgba(11,67,141,.2); border-radius: 16px; background: #fff; }
.seatsSummaryTable dl { display: grid; grid-template-columns: 210px 1fr; margin: 0; border-bottom: 1px solid rgba(11,67,141,.14); }
.seatsSummaryTable dl:last-child { border-bottom: 0; }
.seatsSummaryTable dt,
.seatsSummaryTable dd { margin: 0; padding: 15px 20px; }
.seatsSummaryTable dt { color: #fff; background: var(--seats-blue); font-weight: 700; }
.seatsSummaryTable dd { display: flex; align-items: center; background: rgba(255,255,255,.92); }

.seatsDetailBlock { margin-top: 46px; }
.seatsDetailBlock h3 { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; padding: 14px 18px; border-radius: 9px; color: var(--seats-blue); background: var(--seats-sky); font-size: 25px; font-weight: 800; }
.seatsDetailBlock h3 span { flex: 0 0 auto; color: var(--seats-blue); font-family: "acumin-pro-condensed", sans-serif; font-size: 17px; font-weight: 800; letter-spacing: .08em; }
.seatsDetailBlock__emphasis { padding: 22px; border-radius: 12px; color: var(--seats-blue); background: var(--seats-sky); font-size: 21px; font-weight: 800; text-align: center; }
.seatsDetailBlock__note { margin-top: 10px; color: #76550d; font-size: 14px; font-weight: 700; }

.seatsApplyTable { margin-top: 20px; overflow: hidden; border: 1px solid rgba(11,67,141,.2); border-radius: 14px; background: #fff; }
.seatsApplyTable__head,
.seatsApplyTable__row { display: grid; grid-template-columns: 130px 1fr 220px; }
.seatsApplyTable__head { color: #fff; background: var(--seats-blue); font-weight: 700; text-align: center; }
.seatsApplyTable__head span,
.seatsApplyTable__row > * { padding: 14px 16px; border-right: 1px solid rgba(11,67,141,.16); }
.seatsApplyTable__head span:last-child,
.seatsApplyTable__row > *:last-child { border-right: 0; }
.seatsApplyTable__row { align-items: stretch; border-top: 1px solid rgba(11,67,141,.16); }
.seatsApplyTable__row strong { display: flex; align-items: center; justify-content: center; color: var(--seats-blue); background: var(--seats-sky); }
.seatsApplyTable__row span { display: flex; align-items: center; }
.seatsApplyTable__row small { color: #52677f; font-size: 12px; line-height: 1.6; }

.seatsRequiredList { display: grid; grid-template-columns: repeat(2, 1fr); gap: 9px 24px; padding: 22px 26px; border-radius: 14px; background: #fff; counter-reset: required; }
.seatsRequiredList li { position: relative; padding-left: 2.2em; counter-increment: required; }
.seatsRequiredList li::before { position: absolute; left: 0; color: var(--seats-gold); font-weight: 800; content: counter(required, decimal-leading-zero); }

.seatsNotesList { padding: 24px 26px 24px 3.5em; border-radius: 14px; background: #fff; list-style: decimal; }
.seatsNotesList li { padding-left: .45em; }
.seatsNotesList li + li { margin-top: 8px; }

.seatsPostalAddress { padding: 24px 28px; border-radius: 14px; color: var(--seats-blue-dark); background: var(--seats-sky); font-size: 18px; font-style: normal; font-weight: 700; line-height: 1.85; }
.seatsFormNotice { display: grid; grid-template-columns: 180px 1fr; align-items: center; margin-top: 48px; overflow: hidden; border-radius: 15px; color: #fff; background: linear-gradient(135deg, var(--seats-blue-dark), #1269a5); box-shadow: 0 20px 55px rgba(8,47,104,.16); }
.seatsFormNotice > span { align-self: stretch; display: grid; place-items: center; background: var(--seats-gold); font-weight: 800; }
.seatsFormNotice p { padding: 22px 26px; }
.seatsFormNotice strong { color: #f7d77a; }

#section-period,
#section-method,
#section-details,
#section-detail-period,
#section-detail-method,
#section-detail-required,
#section-detail-lottery,
#section-detail-notes,
#section-detail-address { scroll-margin-top: 32px; }

@media (max-width: 1050px) {
  .seatsPageShell { display: block; width: 100%; }
  .seatsPageNav { position: sticky; z-index: 9; top: 72px; max-height: none; margin: 0; padding: 9px 0; overflow: hidden; border-radius: 0; background: rgba(255,255,255,.93); box-shadow: 0 7px 24px rgba(8,47,104,.12); }
  .seatsPageNav__label { display: none; }
  .seatsPageNav__links { display: flex; gap: 6px; padding: 0 18px; overflow-x: auto; overscroll-behavior-x: contain; scrollbar-width: none; }
  .seatsPageNav__links::-webkit-scrollbar { display: none; }
  .seatsPageNav a,
  .seatsPageNav a.is-sub { flex: 0 0 auto; min-height: 38px; padding: 8px 12px; border-radius: 999px; font-size: 12px; white-space: nowrap; }
  .seatsPageNav a span { flex-basis: auto; font-size: 11px; }
  .seatsArticle { width: min(1080px, calc(100% - 48px)); margin: 0 auto; }
  #section-period,
  #section-method,
  #section-details,
  #section-detail-period,
  #section-detail-method,
  #section-detail-required,
  #section-detail-lottery,
  #section-detail-notes,
  #section-detail-address { scroll-margin-top: 142px; }
}

@media (max-width: 767px) {
  .seatsArticle { width: min(100% - 36px, 560px); padding: 44px 0 78px; }
  .seatsArticle__header { margin-bottom: 50px; }
  .seatsArticle__eyebrow { font-size: 13px; }
  .seatsArticle__badge { margin-top: 17px; font-size: 12px; }
  .seatsArticle h1 { margin-top: 19px; font-size: 31px; }
  .seatsArticle__lead { margin-top: 20px; font-size: 15px; line-height: 1.9; text-align: left; }

  .seatsSection { padding: 48px 0; }
  .seatsSection__heading { gap: 12px; margin-bottom: 22px; }
  .seatsSection__heading > span { flex-basis: 39px; width: 39px; height: 39px; font-size: 12px; }
  .seatsSection__heading p { font-size: 11px; }
  .seatsSection__heading h2 { font-size: 27px; }

  .seatsPeriod { gap: 12px; padding: 25px 15px; border-radius: 16px; }
  .seatsPeriod__date span { font-size: 11px; }
  .seatsPeriod__date strong { margin-top: 5px; font-size: clamp(38px, 12vw, 50px); }
  .seatsPeriod__date em { font-size: 11px; }
  .seatsPeriod__arrow { font-size: 25px; }
  .seatsPeriod__ja { margin-top: 16px; font-size: 16px; line-height: 1.7; }
  .seatsPeriod__note { margin-top: 10px; padding: 12px 15px; font-size: 13px; line-height: 1.6; }

  .seatsMethodGrid { grid-template-columns: 1fr; gap: 14px; }
  .seatsMethodCard { display: grid; grid-template-columns: 74px 1fr; grid-template-rows: auto auto; align-items: center; min-height: 0; padding: 24px 20px 24px 28px; border-radius: 15px; text-align: left; }
  .seatsMethodCard__number { top: 10px; left: 12px; font-size: 10px; }
  .seatsMethodCard__icon { grid-row: 1 / 3; width: 60px; height: 60px; margin: 0; }
  .seatsMethodCard svg { width: 35px; }
  .seatsMethodCard h3 { font-size: 20px; }
  .seatsMethodCard p { margin-top: 5px; font-size: 13px; line-height: 1.6; }
  .seatsMethodNote { margin-top: 20px; padding: 20px 17px; text-align: left; }
  .seatsMethodNote p { font-size: 15px; }
  .seatsMethodNote small { font-size: 12px; line-height: 1.7; }

  .seatsDetailContent { font-size: 14px; line-height: 1.8; }
  .seatsDetailContent__intro { padding: 21px 18px; }
  .seatsSummaryTable { margin-top: 22px; border-radius: 12px; }
  .seatsSummaryTable dl { grid-template-columns: 112px 1fr; }
  .seatsSummaryTable dt,
  .seatsSummaryTable dd { padding: 12px 11px; }
  .seatsSummaryTable dd { display: block; }
  .seatsDetailBlock { margin-top: 36px; }
  .seatsDetailBlock h3 { gap: 11px; margin-bottom: 16px; padding: 11px 13px; border-radius: 7px; font-size: 20px; }
  .seatsDetailBlock h3 span { font-size: 14px; }
  .seatsDetailBlock__emphasis { padding: 17px 12px; font-size: 16px; line-height: 1.7; }
  .seatsDetailBlock__note { font-size: 12px; line-height: 1.65; }
  .seatsApplyTable { border: 0; border-radius: 0; background: transparent; }
  .seatsApplyTable__head { display: none; }
  .seatsApplyTable__row { display: grid; grid-template-columns: 92px 1fr; margin-top: 10px; overflow: hidden; border: 1px solid rgba(11,67,141,.18); border-radius: 11px; background: #fff; }
  .seatsApplyTable__row > * { padding: 11px 12px; border: 0; }
  .seatsApplyTable__row strong { grid-row: 1 / 3; }
  .seatsApplyTable__row span:last-child { border-top: 1px solid rgba(11,67,141,.12); color: #76550d; font-weight: 700; }
  .seatsRequiredList { grid-template-columns: 1fr; gap: 8px; padding: 19px 17px; }
  .seatsNotesList { padding: 20px 16px 20px 3em; }
  .seatsNotesList li + li { margin-top: 9px; }
  .seatsPostalAddress { padding: 20px 18px; font-size: 14px; }
  .seatsFormNotice { grid-template-columns: 1fr; margin-top: 36px; text-align: center; }
  .seatsFormNotice > span { padding: 9px; }
  .seatsFormNotice p { padding: 17px 16px 20px; }
}