/* WCAG 2.2 1.4.3 contrast on white:
 * navy 16.59:1 / text-secondary 9.03:1 / muted 4.83:1
 * gold is used as a filled CTA with navy text for 8.84:1 contrast.
 */

:root {
  --font-public: "Noto Sans JP", "Hiragino Kaku Gothic ProN", Meiryo, system-ui, sans-serif;
  --navy: #0e1e3a;
  --navy-2: #1a2332;
  --text-secondary: #3d4a5a;
  --text-muted: #6b7280;
  --bg-tint: #f6f8fb;
  --public-border: #d8dee8;
  --success: #00876a;
  --success-text: #006b4f;
  --gold: #f5b04a;
  --gold-strong: #f2a52f;
  --gold-soft: #fff7e6;
  --gold-border: #f1d59b;
  --focus: #005bd3;
  --danger: #b42318;
}

/* 公開サイトの共通シェル。デザイン原本（Main.dc.html / Detail.dc.html）の
 * ナビ・フッターの実測値に合わせている。角丸は 4px、区切りは 1px の罫線だけ。 */
:root {
  --public-site-header-height: 68px;
  --public-site-rule: #eef1f6;
}

.public-site-shell {
  min-height: 100vh;
  background: #fff;
  color: var(--navy);
  font-family: var(--font-public);
}

.public-site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--public-site-rule);
}

.public-site-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 12px 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.public-site-header-lead {
  display: flex;
  align-items: center;
  gap: 44px;
  min-width: 0;
}

.public-site-brand-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--navy);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.public-site-brand-mark {
  display: block;
  flex-shrink: 0;
}

.public-site-brand-mark-header {
  width: 26px;
  height: 26px;
  border-radius: 4px;
}

.public-site-brand-mark-footer {
  width: 22px;
  height: 22px;
  border-radius: 4px;
}

.public-site-brand-wordmark {
  display: inline-block;
}

.public-site-header-nav-list {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
  align-items: center;
}

.public-site-header-nav-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: #3d4a5a;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
}

.public-site-header-nav-link:hover {
  color: var(--navy);
}

.public-site-header-action {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

/* 狭い幅でだけ出す開閉メニュー。広い幅では横並びのナビが全項目を出すので隠す。 */
.public-site-header-menu {
  display: none;
  position: relative;
}

.public-site-header-menu-toggle {
  list-style: none;
  width: 44px;
  height: 44px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}

.public-site-header-menu-toggle::-webkit-details-marker {
  display: none;
}

.public-site-header-menu-toggle > span {
  width: 20px;
  height: 2px;
  background: var(--navy);
}

.public-site-header-menu-panel {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  min-width: 220px;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--public-site-rule);
  border-radius: 4px;
  box-shadow: 0 12px 32px rgba(14, 30, 58, 0.12);
}

.public-site-header-menu-panel ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.public-site-header-menu-link {
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  color: #3d4a5a;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
}

.public-site-header-menu-link:hover {
  color: var(--navy);
}

.public-site-header-menu-action {
  padding: 8px 12px 4px;
  border-top: 1px solid var(--public-site-rule);
}

.public-site-footer {
  background: #fff;
  border-top: 1px solid var(--public-site-rule);
}

.public-site-footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 48px 80px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 48px;
}

.public-site-footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--navy);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.public-site-footer-note {
  max-width: 420px;
  margin: 14px 0 0;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.85;
}

/* address 要素の既定の斜体を打ち消し、注記と同じ見た目に揃える */
.public-site-footer-address {
  max-width: 420px;
  margin: 12px 0 0;
  color: var(--text-muted);
  font-size: 12px;
  font-style: normal;
  line-height: 1.85;
}

.public-site-footer-copyright {
  margin: 12px 0 0;
  color: var(--text-muted);
  font-size: 12px;
}

.public-site-footer-groups {
  display: flex;
  gap: 56px;
}

.public-site-footer-group-heading {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy);
}

.public-site-footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 10px 0 0;
  padding: 0;
}

.public-site-footer-link {
  color: #3d4a5a;
  text-decoration: none;
  font-size: 13px;
}

.public-site-footer-link:hover {
  color: var(--navy);
  text-decoration: underline;
}

.public-site-brand-link:focus-visible,
.public-site-header-nav-link:focus-visible,
.public-site-header-menu-toggle:focus-visible,
.public-site-header-menu-link:focus-visible,
.public-site-header-cta:focus-visible,
.public-site-footer-link:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 4px;
}

/* 個別 LP のヘッダー CTA。面の色ではなく navy の面で受ける */
.public-site-header-cta {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 18px;
  border-radius: 4px;
  background: var(--navy);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}

.public-site-header-cta:hover {
  background: #0a1730;
}

@media (max-width: 1024px) {
  .public-site-header-inner,
  .public-site-footer-inner {
    padding-left: 40px;
    padding-right: 40px;
  }

  .public-site-header-lead {
    gap: 24px;
  }

  .public-site-header-nav-list {
    gap: 18px;
  }

  .public-site-footer-inner {
    flex-direction: column;
    gap: 32px;
  }
}

/* 開閉メニューへ切り替える幅。920px は実測値で、
   6 項目のナビと action が並ぶと 885px あたりで両者が重なり始める。 */
@media (max-width: 920px) {
  .public-site-header-nav,
  .public-site-header-action {
    display: none;
  }

  .public-site-header-menu {
    display: block;
  }
}

@media (max-width: 720px) {
  .public-site-header-inner,
  .public-site-footer-inner {
    padding-left: 20px;
    padding-right: 20px;
  }

  .public-site-footer-groups {
    flex-wrap: wrap;
    gap: 24px 40px;
  }
}

/* 見出し面の差し色。LP hero と同じ 4 点セット（ドットの地・回した帯・白へ溶かす膜・drift）。 */
.public-site-tint-surface {
  position: relative;
  /* 帯とドットは LP hero と同じく画面の端まで敷く。中身は読み幅のまま中央に置く。
     `overflow: clip` は scroll container を作らないので、右カラムの sticky が生きたままはみ出しを切れる
     （`hidden` にすると sticky が効かなくなる） */
  overflow: clip;
  width: 100vw;
  margin-inline: calc(50% - 50vw);
  margin-bottom: 48px;
  padding: 40px calc(50vw - 50%) 44px;
  border-bottom: 1px solid var(--public-border);
  background-color: #fff;
  background-image: radial-gradient(
    circle at 1px 1px,
    #e5e7eb 1px,
    transparent 0
  );
  background-size: 24px 24px;
}

.public-site-tint-surface
  > *:not(.public-site-tint-ribbon):not(.public-site-tint-veil) {
  position: relative;
  z-index: 1;
  margin-bottom: 0;
}

.public-site-tint-ribbon {
  position: absolute;
  z-index: 0;
  inset: -30% -10% -30% 46%;
  pointer-events: none;
}

.public-site-tint-band {
  position: absolute;
  border-radius: 50%;
  transform: rotate(-24deg);
  /* 位置だけを 26 秒以上でゆっくり動かす。形は変えない */
  animation: public-site-tint-drift 30s ease-in-out infinite alternate;
  will-change: translate;
}

.public-site-tint-band:nth-child(1) {
  left: 14%;
  top: -6%;
  width: 18%;
  height: 130%;
  background: rgba(245, 176, 74, 0.85);
  filter: blur(46px);
}

.public-site-tint-band:nth-child(2) {
  left: 38%;
  top: -12%;
  width: 14%;
  height: 136%;
  background: rgba(0, 91, 211, 0.42);
  filter: blur(44px);
  animation-duration: 34s;
  animation-delay: -9s;
}

.public-site-tint-band:nth-child(3) {
  left: 60%;
  top: 2%;
  width: 12%;
  height: 128%;
  background: rgba(14, 30, 58, 0.3);
  filter: blur(50px);
  animation-duration: 26s;
  animation-delay: -14s;
}

@keyframes public-site-tint-drift {
  from {
    translate: 0 0;
    scale: 1;
  }

  to {
    translate: -6% 3%;
    scale: 1.08;
  }
}

@media (prefers-reduced-motion: reduce) {
  .public-site-tint-band {
    animation: none;
  }
}

/* 白へ溶かす膜。帯のぼかしは容器の外へはみ出すので、面の全幅に敷かないと縁が線になる。
   見出しが乗る左側を白で覆うので、帯を強くしても文字のコントラストは落ちない */
.public-site-tint-veil {
  position: absolute;
  z-index: 0;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    90deg,
    #fff 0%,
    #fff 44%,
    rgba(255, 255, 255, 0.84) 58%,
    rgba(255, 255, 255, 0) 78%
  );
}