:root {
  --secret-ink: #f5f0e6;
  --secret-muted: #c9c2b5;
  --secret-navy: #07172d;
  --secret-navy-deep: #030a16;
  --secret-panel: #0d223d;
  --secret-panel-light: #132e4e;
  --secret-gold: #f3c969;
  --secret-gold-deep: #b98228;
  --secret-red: #ec5545;
  --secret-line: rgba(243, 201, 105, 0.25);
}

.secret-base-page {
  min-height: 100vh;
  color: var(--secret-ink);
  background: var(--secret-navy-deep);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", system-ui, sans-serif;
}

.secret-base-page * { box-sizing: border-box; }
.secret-base-page a { color: inherit; }
.secret-base-shell { width: min(calc(100% - 40px), 1160px); margin: 0 auto; }
.secret-base-mobile-only { display: none; }

.secret-base-header {
  position: relative;
  z-index: 2;
  border-bottom: 1px solid rgba(243, 201, 105, 0.18);
  background: rgba(3, 10, 22, 0.88);
}

.secret-base-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 20px;
}

.secret-base-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--secret-ink);
  text-decoration: none;
  font-family: Arial, "Yu Gothic", sans-serif;
  font-size: 1.18rem;
  font-weight: 900;
  letter-spacing: -0.06em;
}

.secret-base-brand > span:last-child > span { color: var(--secret-red); }
.secret-base-brand__mark { display: grid; width: 34px; height: 34px; place-items: center; color: #1b2740; background: var(--secret-gold); border-radius: 50%; font-size: 1rem; letter-spacing: 0; }
.secret-base-back-link { color: var(--secret-muted); font-size: 0.85rem; text-underline-offset: 3px; }
.secret-base-back-link:hover, .secret-base-back-link:focus-visible { color: var(--secret-gold); }

.secret-base-hero {
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 76% 16%, rgba(243, 201, 105, 0.16), transparent 25rem), linear-gradient(135deg, #07172d 0%, #0a203b 58%, #121b2b 100%);
}

.secret-base-hero::after {
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--secret-line), transparent);
}

.secret-base-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 1fr);
  align-items: center;
  gap: clamp(36px, 7vw, 96px);
  padding-top: clamp(64px, 8vw, 112px);
  padding-bottom: clamp(64px, 8vw, 112px);
}

.secret-base-hero__copy { max-width: 620px; position: relative; z-index: 1; }
.secret-base-eyebrow { margin: 0 0 16px; color: var(--secret-gold); font-family: Arial, sans-serif; font-size: 0.72rem; font-weight: 900; letter-spacing: 0.18em; line-height: 1.4; }
.secret-base-hero h1 { margin: 0; color: #fffaf0; font-family: "Hiragino Mincho ProN", "Yu Mincho", serif; font-size: clamp(2.6rem, 4.8vw, 4.6rem); font-weight: 900; letter-spacing: -0.09em; line-height: 1.08; text-shadow: 0 5px 22px rgba(0, 0, 0, 0.22); text-wrap: balance; }
.secret-base-hero__subtitle { max-width: 30em; margin: 22px 0 0; color: var(--secret-gold); font-size: clamp(1.05rem, 2vw, 1.45rem); font-weight: 800; line-height: 1.55; text-wrap: balance; }
.secret-base-hero__lead { display: grid; max-width: 34em; gap: 8px; margin: 28px 0 0; color: var(--secret-ink); font-size: 1.02rem; line-height: 2; }
.secret-base-hero__lead p { margin: 0; }
.secret-base-hero__note { margin: 18px 0 30px; color: var(--secret-muted); font-size: 0.92rem; line-height: 1.85; }

.secret-base-hero__visual { margin: 0; }
.secret-base-hero__visual-frame { position: relative; overflow: hidden; padding: 8px; border: 1px solid var(--secret-line); border-radius: 28px; background: linear-gradient(140deg, rgba(243, 201, 105, 0.36), rgba(255, 255, 255, 0.02) 55%); box-shadow: 0 24px 70px rgba(0, 0, 0, 0.36); }
.secret-base-hero__visual-frame::after { position: absolute; inset: 8px; pointer-events: none; border: 1px solid rgba(255, 255, 255, 0.24); border-radius: 21px; content: ""; }
.secret-base-hero__visual img { display: block; width: 100%; height: auto; border-radius: 21px; }
.secret-base-hero__visual figcaption { display: flex; align-items: center; gap: 8px; margin-top: 14px; color: var(--secret-muted); font-size: 0.82rem; }
.secret-base-hero__visual figcaption span { color: var(--secret-gold); font-size: 1.1rem; }

.secret-base-button { display: inline-flex; min-height: 54px; align-items: center; justify-content: center; gap: 10px; padding: 12px 24px; border: 1px solid transparent; border-radius: 999px; cursor: pointer; font: inherit; font-size: 0.98rem; font-weight: 900; line-height: 1.2; transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease; }
.secret-base-button:hover, .secret-base-button:focus-visible { transform: translateY(-2px); }
.secret-base-button:focus-visible { outline: 3px solid rgba(255, 255, 255, 0.9); outline-offset: 4px; }
.secret-base-button--gold { color: #131a29; background: linear-gradient(135deg, #ffe395, var(--secret-gold)); box-shadow: 0 10px 26px rgba(243, 201, 105, 0.22); }
.secret-base-button--gold:hover, .secret-base-button--gold:focus-visible { background: #ffe9a9; box-shadow: 0 14px 30px rgba(243, 201, 105, 0.32); }
.secret-base-button--dark { color: #fffaf0; background: var(--secret-red); box-shadow: 0 10px 24px rgba(236, 85, 69, 0.24); }
.secret-base-button--dark:hover, .secret-base-button--dark:focus-visible { background: #f36e5f; }

.secret-base-section { padding: clamp(70px, 9vw, 120px) 0; background: #081a31; }
.secret-base-section-heading { max-width: 700px; margin-bottom: 36px; }
.secret-base-section-heading h2, .secret-base-cta-card h2 { margin: 0; color: #fffaf0; font-family: "Hiragino Mincho ProN", "Yu Mincho", serif; font-size: clamp(2rem, 4vw, 3.4rem); letter-spacing: -0.07em; line-height: 1.2; }
.secret-base-section-heading h2, .secret-base-cta-card h2, .secret-base-community-card h2 { text-wrap: balance; }
.secret-base-section-heading > p:last-child { margin: 18px 0 0; color: var(--secret-muted); font-size: 1rem; line-height: 1.9; }
.secret-base-public-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.secret-base-public-card { display: flex; min-height: 250px; flex-direction: column; padding: 24px; border: 1px solid rgba(243, 201, 105, 0.21); border-radius: 20px; background: linear-gradient(145deg, rgba(19, 46, 78, 0.95), rgba(8, 24, 45, 0.95)); box-shadow: 0 12px 28px rgba(0, 0, 0, 0.14); transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease; }
.secret-base-public-card:hover, .secret-base-public-card:focus-within { border-color: rgba(243, 201, 105, 0.78); box-shadow: 0 16px 34px rgba(0, 0, 0, 0.2); transform: translateY(-3px); }
.secret-base-public-card__top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.secret-base-public-card__icon { display: grid; width: 52px; height: 52px; place-items: center; border-radius: 16px; background: rgba(243, 201, 105, 0.14); font-size: 1.65rem; }
.secret-base-lock-label { padding: 7px 9px; color: #fff4c7; background: rgba(236, 85, 69, 0.18); border: 1px solid rgba(236, 85, 69, 0.38); border-radius: 999px; font-size: 0.72rem; font-weight: 800; white-space: nowrap; }
.secret-base-public-card h2 { margin: 22px 0 10px; color: #fffaf0; font-size: 1.12rem; line-height: 1.55; }
.secret-base-public-card p { margin: 0; color: var(--secret-muted); font-size: 0.92rem; line-height: 1.8; }
.secret-base-public-card__action { display: inline-flex; align-items: center; gap: 8px; width: fit-content; margin-top: auto; padding: 20px 0 0; color: var(--secret-gold); background: transparent; border: 0; cursor: pointer; font: inherit; font-size: 0.78rem; font-weight: 900; line-height: 1.2; }
.secret-base-public-card__action:hover, .secret-base-public-card__action:focus-visible { color: #fff1b8; }

.secret-base-community-section { padding: 0 0 26px; background: #081a31; }
.secret-base-community-card { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 24px 40px; padding: clamp(30px, 5vw, 52px); border: 1px solid rgba(243, 201, 105, 0.32); border-radius: 26px; background: linear-gradient(135deg, rgba(236, 85, 69, 0.14), rgba(243, 201, 105, 0.08) 48%, #102b4b 100%); box-shadow: 0 18px 44px rgba(0, 0, 0, 0.16); }
.secret-base-community-card__copy { max-width: 760px; }
.secret-base-community-card h2 { margin: 0; color: #fffaf0; font-family: "Hiragino Mincho ProN", "Yu Mincho", serif; font-size: clamp(1.8rem, 3.8vw, 3rem); letter-spacing: -0.07em; line-height: 1.25; }
.secret-base-community-card__copy > p:last-child { margin: 18px 0 0; color: var(--secret-muted); line-height: 1.9; }
.secret-base-community-card__action { display: flex; min-width: 280px; flex-direction: column; align-items: center; gap: 10px; }
.secret-base-community-card__action .secret-base-button { width: 100%; }
.secret-base-community-card__action a.secret-base-button--gold { color: #131a29; }
.secret-base-community-card__note { margin: 0; color: var(--secret-muted); font-size: 0.75rem; line-height: 1.5; text-align: center; }

.secret-base-cta-section { padding: 0 0 clamp(70px, 9vw, 120px); background: #081a31; }
.secret-base-cta-card { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 16px 36px; padding: clamp(30px, 5vw, 52px); border: 1px solid rgba(243, 201, 105, 0.32); border-radius: 26px; background: radial-gradient(circle at 85% 15%, rgba(243, 201, 105, 0.15), transparent 16rem), #102b4b; }
.secret-base-cta-card .secret-base-eyebrow, .secret-base-cta-card h2, .secret-base-cta-card p { grid-column: 1; }
.secret-base-cta-card h2 { font-size: clamp(1.75rem, 3.5vw, 2.8rem); }
.secret-base-cta-card p { margin: 0; color: var(--secret-muted); line-height: 1.8; }
.secret-base-cta-card .secret-base-button { grid-column: 2; grid-row: 1 / span 4; min-width: 245px; }

.secret-base-footer { padding: 22px 0; border-top: 1px solid rgba(243, 201, 105, 0.14); background: var(--secret-navy-deep); color: var(--secret-muted); font-size: 0.78rem; }
.secret-base-footer .secret-base-shell { display: flex; justify-content: space-between; gap: 18px; }
.secret-base-footer a { color: var(--secret-ink); font-weight: 800; text-decoration: none; }

.secret-base-dialog { width: min(calc(100% - 32px), 480px); padding: 0; color: var(--secret-ink); background: transparent; border: 0; }
.secret-base-dialog::backdrop { background: rgba(1, 6, 14, 0.76); backdrop-filter: blur(5px); }
.secret-base-dialog__inner { position: relative; padding: 34px; border: 1px solid rgba(243, 201, 105, 0.42); border-radius: 24px; background: linear-gradient(145deg, #102b4b, #07172d); box-shadow: 0 24px 70px rgba(0, 0, 0, 0.44); }
.secret-base-dialog__inner h2 { margin: 0; color: #fffaf0; font-family: "Hiragino Mincho ProN", "Yu Mincho", serif; font-size: 2rem; letter-spacing: -0.06em; }
.secret-base-dialog__inner > p:not(.secret-base-eyebrow) { margin: 14px 0 22px; color: var(--secret-muted); line-height: 1.8; }
.secret-base-dialog__close { position: absolute; top: 14px; right: 16px; width: 36px; height: 36px; padding: 0; color: var(--secret-muted); background: transparent; border: 0; border-radius: 50%; cursor: pointer; font-size: 1.8rem; line-height: 1; }
.secret-base-dialog__close:hover, .secret-base-dialog__close:focus-visible { color: var(--secret-gold); background: rgba(255, 255, 255, 0.08); }
.secret-base-dialog form { display: grid; gap: 10px; }
.secret-base-dialog label { color: var(--secret-ink); font-size: 0.85rem; font-weight: 800; }
.secret-base-dialog input { width: 100%; min-height: 50px; padding: 12px 14px; color: #132038; background: #fffaf0; border: 2px solid transparent; border-radius: 12px; font: inherit; font-size: 1rem; }
.secret-base-dialog input:focus { border-color: var(--secret-gold); outline: none; }
.secret-base-dialog form .secret-base-button { width: 100%; margin-top: 8px; }
.secret-base-form-status { min-height: 1.5em; margin: 4px 0 0; color: #ffd8a6; font-size: 0.86rem; line-height: 1.6; }

.secret-base-member .secret-base-main { padding: 0 0 100px; }
.secret-base-member__hero { padding: 72px 0 56px; background: radial-gradient(circle at 80% 18%, rgba(243, 201, 105, 0.15), transparent 22rem), #07172d; }
.secret-base-member__hero h1 { margin: 0; color: #fffaf0; font-family: "Hiragino Mincho ProN", "Yu Mincho", serif; font-size: clamp(2.1rem, 5vw, 4.2rem); letter-spacing: -0.08em; line-height: 1.12; }
.secret-base-member__hero p:last-child { margin: 18px 0 0; color: var(--secret-muted); line-height: 1.8; }
.secret-base-member-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 34px; }
.secret-base-member-card { display: flex; min-height: 245px; flex-direction: column; padding: 24px; color: var(--secret-ink); background: linear-gradient(145deg, #132e4e, #0a1d35); border: 1px solid rgba(243, 201, 105, 0.24); border-radius: 18px; text-decoration: none; transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease; }
.secret-base-member-card:hover, .secret-base-member-card:focus-visible { color: var(--secret-ink); border-color: rgba(243, 201, 105, 0.8); box-shadow: 0 16px 34px rgba(0, 0, 0, 0.2); transform: translateY(-3px); }
.secret-base-member-card__icon { font-size: 1.8rem; }
.secret-base-member-card h2 { margin: 22px 0 10px; color: #fffaf0; font-size: 1.2rem; line-height: 1.55; }
.secret-base-member-card p { margin: 0; color: var(--secret-muted); font-size: 0.92rem; line-height: 1.8; }
.secret-base-member-card__cta { display: block; margin-top: auto; padding-top: 20px; color: var(--secret-gold); font-size: 0.82rem; font-weight: 900; }

.secret-base-detail { padding: 62px 0 100px; background: #081a31; }
.secret-base-detail__head { max-width: 820px; margin-bottom: 32px; }
.secret-base-detail__head h1 { margin: 0; color: #fffaf0; font-family: "Hiragino Mincho ProN", "Yu Mincho", serif; font-size: clamp(2rem, 5vw, 3.8rem); letter-spacing: -0.08em; line-height: 1.2; }
.secret-base-detail__head p { margin: 16px 0 0; color: var(--secret-muted); line-height: 1.8; }
.secret-base-detail__body { max-width: 820px; padding: clamp(22px, 5vw, 46px); border: 1px solid rgba(243, 201, 105, 0.2); border-radius: 22px; background: #0d223d; }
.secret-base-detail__body h2 { margin: 48px 0 16px; padding-left: 14px; color: #fffaf0; border-left: 4px solid var(--secret-gold); font-size: clamp(1.35rem, 3vw, 1.85rem); line-height: 1.45; }
.secret-base-detail__body h3 { margin: 34px 0 12px; color: #fffaf0; font-size: 1.25rem; line-height: 1.5; }
.secret-base-detail__body h2:first-child, .secret-base-detail__body h3:first-child { margin-top: 0; }
.secret-base-detail__body p, .secret-base-detail__body li { color: var(--secret-ink); font-size: 1rem; line-height: 2; }
.secret-base-detail__body p { margin: 0 0 18px; }
.secret-base-detail__body ul { margin: 0 0 24px; padding-left: 1.4em; }
.secret-base-detail__body a { color: var(--secret-gold); text-underline-offset: 3px; }
.secret-base-detail__body blockquote { margin: 22px 0; padding: 14px 18px; border-left: 3px solid var(--secret-red); color: var(--secret-muted); background: rgba(236, 85, 69, 0.08); }
.secret-base-detail__body blockquote p { color: var(--secret-muted); }
.secret-base-detail__gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 22px 0 36px; }
.secret-base-detail__gallery figure { margin: 0; padding: 7px; border: 1px solid rgba(243, 201, 105, 0.18); border-radius: 14px; background: #07172d; }
.secret-base-detail__gallery figure.secret-base-detail__gallery-figure--wide { grid-column: 1 / -1; }
.secret-base-detail__gallery img { display: block; width: 100%; height: auto; border-radius: 9px; }
.secret-base-detail__accordion { margin: 22px 0; border: 1px solid rgba(243, 201, 105, 0.2); border-radius: 16px; background: rgba(7, 23, 45, 0.52); overflow: hidden; }
.secret-base-detail__accordion summary { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 18px 20px; color: #fffaf0; cursor: pointer; font-size: 1.06rem; font-weight: 900; line-height: 1.5; list-style: none; }
.secret-base-detail__accordion summary::-webkit-details-marker { display: none; }
.secret-base-detail__accordion summary::after { flex: 0 0 auto; color: var(--secret-gold); content: "＋"; font-size: 1.3rem; font-weight: 400; }
.secret-base-detail__accordion[open] > summary::after { content: "−"; }
.secret-base-detail__accordion-body { padding: 4px 20px 20px; border-top: 1px solid rgba(243, 201, 105, 0.14); }
.secret-base-detail__accordion-body h3:first-child { margin-top: 20px; }
.secret-base-detail__back { display: inline-flex; margin-top: 28px; color: var(--secret-gold); font-size: 0.9rem; font-weight: 800; text-underline-offset: 4px; }

@media (max-width: 900px) {
  .secret-base-hero__inner { grid-template-columns: 1fr; gap: 36px; }
  .secret-base-hero__copy { max-width: 720px; }
  .secret-base-hero__visual { width: min(100%, 760px); }
  .secret-base-public-grid, .secret-base-member-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .secret-base-shell { width: min(calc(100% - 32px), 720px); }
  .secret-base-header__inner { min-height: 64px; }
  .secret-base-brand { font-size: 1rem; }
  .secret-base-brand__mark { width: 30px; height: 30px; }
  .secret-base-back-link { font-size: 0.75rem; }
  .secret-base-mobile-only { display: inline; }
  .secret-base-hero__inner { padding-top: 52px; padding-bottom: 60px; }
  .secret-base-hero h1 { font-size: clamp(2.3rem, 12vw, 3.2rem); }
  .secret-base-hero__lead { font-size: 0.96rem; line-height: 1.85; }
  .secret-base-hero__note { font-size: 0.85rem; }
  .secret-base-button { width: 100%; min-height: 56px; }
  .secret-base-public-grid, .secret-base-member-grid { grid-template-columns: 1fr; }
  .secret-base-public-card, .secret-base-member-card { min-height: 0; }
  .secret-base-cta-card { display: block; padding: 28px 22px; }
  .secret-base-cta-card h2 { margin-bottom: 12px; }
  .secret-base-cta-card p { margin-bottom: 22px; }
  .secret-base-cta-card .secret-base-button { width: 100%; }
  .secret-base-community-card { display: block; padding: 28px 22px; }
  .secret-base-community-card__action { min-width: 0; margin-top: 24px; }
  .secret-base-community-card__note { margin-top: 10px; }
  .secret-base-footer .secret-base-shell { flex-direction: column; gap: 8px; }
  .secret-base-dialog__inner { padding: 28px 22px; }
  .secret-base-detail { padding-top: 48px; }
  .secret-base-detail__body { padding: 22px 18px; }
  .secret-base-detail__body p, .secret-base-detail__body li { font-size: 0.96rem; line-height: 1.9; }
  .secret-base-detail__gallery { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .secret-base-page *, .secret-base-page *::before, .secret-base-page *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}