:root {
  color-scheme: light;
  /* AGORA本体のデザイントークン（platform の tokens.css）に揃える。読み込めない場合も読めるよう既定値を残す */
  --robotics-ink: var(--color-text, #2e3a4e);
  --robotics-muted: var(--color-text-sub, #5f5e5a);
  --robotics-navy: var(--navy-900, #06264d);
  --robotics-blue: var(--agora-blue, #0146d1);
  --robotics-cyan: var(--agora-blue, #0146d1);
  --robotics-surface: var(--color-surface, #ffffff);
  --robotics-surface-soft: var(--color-surface-muted, #f4f6f9);
  --robotics-border: var(--color-border, #e2e5ea);
  --robotics-info-bg: var(--navy-50, #f0f5ff);
  --robotics-info-border: #7f9fd8;
  --robotics-rainbow: var(--agora-rainbow, linear-gradient(120deg, #f00811, #fea002, #9ab501, #0146d1, #8227c0));
  --robotics-ready-bg: #e8f7ef;
  --robotics-ready-border: #218358;
  --robotics-pending-bg: #fff4d8;
  --robotics-pending-border: #a86b00;
  --robotics-danger-bg: #fff0f0;
  --robotics-danger-border: #c73939;
  --robotics-focus: #ffbf47;
  --robotics-on-navy: #ffffff;          /* 紺のボタン・選択中ナビの文字色（ダークでは紺が明るくなるので暗い文字に） */
  --robotics-ready-ink: #12643f;
  --robotics-pending-ink: #744800;
  --robotics-muted-border: #91a0ae;
  --robotics-muted-bg: #e7edf2;
  --robotics-muted-ink: #455564;
  --robotics-hero-gradient: linear-gradient(135deg, #fff 0%, #f7faff 70%, #eef4ff 100%);
  --robotics-shadow: 0 2px 10px rgb(6 38 77 / 7%);
  --robotics-radius-sm: 0.5rem;
  --robotics-radius: 0.875rem;
  --robotics-content: 76rem;
}

/* ダークモード（D-897）。AGORA本体の tokens.css が `<html class="dark">` で色トークンを反転させるので、
   トークン由来の変数はそのまま追従する。ここでは Robotics 固有の直書き色だけを暗い配色に差し替える */
:root.dark {
  color-scheme: dark;
  --robotics-info-border: #3B6EC2;
  --robotics-ready-bg: #10301f;
  --robotics-ready-border: #34D399;
  --robotics-ready-ink: #A7F3D0;
  --robotics-pending-bg: #3A2E1C;
  --robotics-pending-border: #F0C179;
  --robotics-pending-ink: #FDE68A;
  --robotics-danger-bg: #3A2323;
  --robotics-danger-border: #F3A6A6;
  --robotics-focus: #ffd24a;
  --robotics-on-navy: #0B1420;
  --robotics-muted-border: #3A4452;
  --robotics-muted-bg: #1C2531;
  --robotics-muted-ink: #B0B4BB;
  --robotics-hero-gradient: linear-gradient(135deg, #161D27 0%, #141c2a 70%, #10203A 100%);
  --robotics-shadow: 0 2px 10px rgb(0 0 0 / 45%);
}

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

html {
  min-width: 20rem;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background: var(--robotics-surface-soft);
  color: var(--robotics-ink);
  /* 書体はAGORA本体と同じ（tokens.css の --font-family）。読み込めない場合だけ、これまでの指定に戻る */
  font-family: var(--font-family, "BIZ UDPGothic", "Yu Gothic UI", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif);
  font-size: 1rem;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

[hidden] {
  display: none !important;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--robotics-blue);
  font-weight: 700;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--robotics-navy);
  text-decoration-thickness: 0.14em;
}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 0.22rem solid var(--robotics-focus);
  outline-offset: 0.2rem;
  border-radius: 0.2rem;
}

h1,
h2,
h3,
p,
li,
dd,
dt,
code,
span {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--robotics-navy);
  line-height: 1.3;
}

h1 {
  margin-bottom: 1rem;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(1.3rem, 2vw, 1.7rem);
}

h3 {
  margin-bottom: 0.4rem;
  font-size: 1.1rem;
}

p,
ul,
ol,
dl {
  margin-top: 0;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.5rem;
  left: 0.5rem;
  min-height: 2.75rem;
  padding: 0.55rem 1rem;
  transform: translateY(-150%);
  border: 0.15rem solid var(--robotics-focus);
  border-radius: var(--robotics-radius-sm);
  background: var(--robotics-navy);
  color: var(--robotics-on-navy);
}

.skip-link:focus {
  transform: translateY(0);
}

.product-header {
  position: sticky;
  z-index: 10;
  top: 0;
  border-bottom: 2px solid transparent;
  border-image: var(--robotics-rainbow) 1;
  background: var(--robotics-surface);
  box-shadow: 0 1px 0 var(--robotics-border);
  color: var(--robotics-navy);
}

.footer-inner {
  width: min(calc(100% - 2rem), var(--robotics-content));
  margin-inline: auto;
}

/* ヘッダーは AGORA 本体と同じ並び（全幅・1行）：☰ ロゴ ……… 権限・ログイン／マイページへ ◐ */
.header-inner {
  display: flex;
  width: 100%;
  height: 3.5rem;
  align-items: center;
  gap: 0.75rem;
  padding: 0 1rem;
}

.header-spacer {
  flex: 1 1 auto;
}

.header-tools {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.5rem;
}

/* JavaScriptが無い場合だけ見える案内リンク（通常は☰のメニューに入っている） */
.noscript-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.noscript-nav a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
  color: var(--robotics-navy);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

.noscript-nav a[aria-current="page"] {
  background: var(--robotics-blue);
  color: var(--robotics-on-navy);
}

.brand {
  display: inline-flex;
  min-height: 2.75rem;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.5rem;
  color: var(--robotics-navy);
  /* サイト名は、AGORA本体の .agora-header .logo と同じ書体・大きさ・太さ・字間 */
  font-family: var(--font-family, inherit);
  font-size: var(--fs-h2, 1.25rem);
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.6;
  text-decoration: none;
}

.brand:hover {
  color: var(--robotics-navy);
  opacity: 0.88;
}

.brand img {
  width: auto;
  height: 32px;
  object-fit: contain;
}

.footer-links a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
  color: var(--robotics-navy);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

/* ログイン／マイページへ：AGORA本体のヘッダーの .header-account-btn と同じ（丸い小さなボタン。
   未ログインの「ログイン」は紺の塗り、ログイン後の「マイページへ」は白地に線） */
.header-tools .login-link {
  display: inline-flex;
  min-height: 0;
  align-items: center;
  padding: 6px 14px;
  border: 1px solid var(--robotics-navy);
  border-radius: 999px;
  background: var(--robotics-navy);
  color: var(--robotics-on-navy);
  font-size: 0.8125rem;
  font-weight: 700;
  white-space: nowrap;
  text-decoration: none;
}

.header-tools .login-link:hover {
  background: var(--navy-700, #123a6e);
  color: var(--robotics-on-navy);
}

.header-tools .login-link[data-session-state="signed_in"] {
  border-color: var(--color-border-strong, #8a96a8);
  background: var(--robotics-surface);
  color: var(--robotics-navy);
}

.header-tools .login-link[data-session-state="signed_in"]:hover {
  background: var(--robotics-surface-soft);
  color: var(--robotics-navy);
}

/* 本文は全幅（ヒーローが画面の端まで届く）。ヒーロー以外は、これまでどおりの幅で中央に置く */
.page-shell {
  width: 100%;
  padding-block: 0 4rem;
}

.page-shell > :not(.page-hero) {
  width: min(calc(100% - 2rem), var(--robotics-content));
  margin-inline: auto;
}

.page-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 1rem;
  /* 左右の余白は本文と同じ位置に揃える（背景と罫線は画面の端まで） */
  padding: 2rem max(1rem, calc((100% - var(--robotics-content)) / 2)) 1.75rem;
  overflow: hidden;
  border: 0;
  border-bottom: 1px solid var(--robotics-border);
  border-radius: 0;
  background: var(--robotics-surface);
  box-shadow: none;
}

.page-hero.has-mark {
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

.page-hero.has-mark > div:first-child {
  grid-column: 1;
}

.page-hero.has-mark .action-row {
  grid-column: 1;
}

/* 大きなロゴの飾りは、AGORA本体のヒーローに無いため出さない（ロゴはヘッダーにある） */
.hero-mark {
  display: none;
}

.page-hero > * {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin-bottom: 0.7rem;
  color: var(--robotics-muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* AGORA本体の見出し上にある、虹色の短い帯 */
.eyebrow::before {
  display: block;
  width: 2.5rem;
  height: 0.25rem;
  margin-bottom: 0.6rem;
  border-radius: 999px;
  background: var(--robotics-rainbow);
  content: "";
}

.lead {
  max-width: 58rem;
  margin-bottom: 0;
  color: var(--robotics-ink);
  font-size: clamp(1rem, 1.4vw, 1.12rem);
}

.source-health {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 0.35rem 1rem;
  margin-block: 1.25rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--robotics-info-border);
  border-left-width: 0.35rem;
  border-radius: var(--robotics-radius-sm);
  background: var(--robotics-info-bg);
}

.source-health[data-state="ready"] {
  border-color: var(--robotics-ready-border);
  background: var(--robotics-ready-bg);
}

.source-health[data-state="not_implemented"] {
  border-color: var(--robotics-pending-border);
  background: var(--robotics-pending-bg);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(16rem, 0.72fr);
  align-items: start;
  gap: 1.25rem;
}

.main-stack,
.rail {
  display: grid;
  min-width: 0;
  gap: 1.25rem;
}

.panel,
.card,
.empty-state {
  min-width: 0;
  border: 1px solid var(--robotics-border);
  border-radius: var(--robotics-radius);
  background: var(--robotics-surface);
}

.panel {
  padding: clamp(1.15rem, 2.5vw, 2rem);
  box-shadow: var(--robotics-shadow);
}

.rail .panel {
  padding: 1.25rem;
  box-shadow: none;
}

.card-grid,
.comparison {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
  gap: 1rem;
}

.card {
  padding: 1.2rem;
  border-top: 0.25rem solid var(--robotics-blue);
}

.card p:last-child,
.panel > :last-child,
.empty-state > :last-child {
  margin-bottom: 0;
}

.empty-state {
  padding: 1.25rem;
  border-style: dashed;
  background: var(--robotics-surface-soft);
}

.tag,
.state-badge {
  display: inline-flex;
  min-height: 1.7rem;
  align-items: center;
  margin-bottom: 0.65rem;
  padding: 0.1rem 0.55rem;
  border: 1px solid var(--robotics-ready-border);
  border-radius: 999px;
  background: var(--robotics-ready-bg);
  color: var(--robotics-ready-ink);
  font-size: 0.77rem;
  font-weight: 800;
}

.tag.pending {
  border-color: var(--robotics-pending-border);
  background: var(--robotics-pending-bg);
  color: var(--robotics-pending-ink);
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.button {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1rem;
  border: 2px solid var(--robotics-navy);
  border-radius: var(--robotics-radius-sm);
  background: var(--robotics-navy);
  color: var(--robotics-on-navy);
  font-weight: 800;
  line-height: 1.35;
  text-align: center;
  text-decoration: none;
}

.button:hover {
  background: var(--navy-700, #123a6e);
  color: var(--robotics-on-navy);
}

.button.secondary {
  border-color: var(--robotics-border);
  background: var(--robotics-surface);
  color: var(--robotics-navy);
}

.button.secondary:hover {
  border-color: var(--robotics-navy);
  background: var(--robotics-info-bg);
  color: var(--robotics-navy);
}

.button.muted,
.button[aria-disabled="true"] {
  border-color: var(--robotics-muted-border);
  background: var(--robotics-muted-bg);
  color: var(--robotics-muted-ink);
  cursor: not-allowed;
}

.rail a:not(.button),
.card a:not(.button),
.empty-state a:not(.button),
.link-list a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
}

.truth-list,
.steps,
.link-list {
  padding-left: 1.4rem;
}

.truth-list li,
.steps li,
.link-list li {
  margin-block: 0.45rem;
}

.steps li::marker {
  color: var(--robotics-blue);
  font-weight: 800;
}

.definition-list {
  display: grid;
  grid-template-columns: minmax(6rem, 0.4fr) minmax(0, 1fr);
  gap: 0.45rem 1rem;
}

.definition-list dt {
  color: var(--robotics-muted);
  font-weight: 800;
}

.definition-list dd {
  margin: 0;
}

.code-block {
  max-width: 100%;
  padding: 1rem;
  overflow: auto;
  border-radius: var(--robotics-radius-sm);
  background: #0c1c30;
  color: #f6f9fc;
  font: 0.92rem/1.65 ui-monospace, SFMono-Regular, Consolas, monospace;
  white-space: pre-wrap;
}

.small {
  color: var(--robotics-muted);
  font-size: 0.9rem;
}

.product-footer {
  border-top: 2px solid transparent;
  border-image: var(--robotics-rainbow) 1;
  background: var(--robotics-surface);
  color: var(--robotics-muted);
}

.product-footer strong {
  color: var(--robotics-navy);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(14rem, 0.8fr) minmax(0, 1.2fr);
  gap: 2rem;
  padding-block: 2rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.25rem;
}

.footer-links a {
  color: var(--robotics-muted);
  font-weight: 600;
}

.footer-links a:hover {
  background: var(--robotics-surface-soft);
  color: var(--robotics-navy);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.75rem;
  min-height: 2.75rem;
  margin-left: 0;
  padding: 0.25rem 0.5rem;
  border: 0;
  border-radius: var(--robotics-radius-sm);
  background: transparent;
  color: var(--navy-700, var(--robotics-navy));
  font: inherit;
  font-size: 1.375rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s;
}

.theme-toggle:hover {
  background: rgb(6 38 77 / 6%);
  color: var(--navy-900, var(--robotics-navy));
}

.theme-toggle[aria-pressed="true"] {
  background: transparent;
}

.theme-toggle:focus-visible {
  outline: 0.2rem solid var(--robotics-focus);
  outline-offset: 0.15rem;
}

@media (max-width: 64rem) {
  .content-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .rail {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  }
}

@media (max-width: 45rem) {
  .footer-inner,
  .page-shell > :not(.page-hero) {
    width: min(calc(100% - 1.25rem), var(--robotics-content));
  }

  /* 狭い画面：ヘッダーは1行のまま。権限の表示は短くし、折り返さない */
  .header-inner {
    gap: 0.4rem;
    padding-inline: 0.5rem;
  }

  .brand {
    gap: 0.5rem;
  }

  .header-tools .button {
    min-height: 2.5rem;
    padding-inline: 0.75rem;
    font-size: 0.85rem;
  }

  .noscript-nav {
    display: none;
  }

  .page-hero {
    padding-inline: 0.75rem;
  }

  .page-hero,
  .page-hero.has-mark {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.2rem;
  }

  .hero-mark {
    display: none;
  }

  .page-hero .button,
  .action-row .button {
    width: 100%;
  }

  .source-health {
    grid-template-columns: minmax(0, 1fr);
  }

  .definition-list,
  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    justify-content: stretch;
  }
}

@media (max-width: 24rem) {
  .footer-links {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (forced-colors: active) {
  .panel,
  .card,
  .empty-state,
  .source-health,
  .button,
  .context-switcher select {
    border: 1px solid CanvasText;
  }

  .tag,
  .state-badge {
    border: 1px solid CanvasText;
    forced-color-adjust: none;
  }
}

@media print {
  :root {
    color-scheme: light;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 11pt;
  }

  .skip-link,
  .header-tools,
  .noscript-nav,
  .action-row,
  .footer-links {
    display: none !important;
  }

  .product-header,
  .product-footer {
    border: 0;
    background: #fff;
    color: #000;
  }

  .brand,
  a {
    color: #000;
  }

  .page-shell,
  .header-inner,
  .footer-inner {
    width: 100%;
  }

  .page-hero,
  .content-grid,
  .footer-inner {
    display: block;
  }

  .page-hero,
  .panel,
  .card,
  .empty-state,
  .source-health {
    break-inside: avoid;
    box-shadow: none;
  }

  .rail {
    margin-top: 1rem;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    font-weight: 400;
  }
}

/* ── ☰サイドメニュー（AGORA本体と同じ「左から開くメニュー」）。js/sidenav.js が作る ───────── */
/* ☰・◐は、AGORA本体のヘッダーの .icon-btn と同じ（背景・枠なし。紺。ホバーで薄い背景） */
.sidenav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  min-width: 2.75rem;
  min-height: 2.75rem;
  margin-right: 0;
  padding: 0.25rem 0.5rem;
  border: 0;
  border-radius: var(--robotics-radius-sm);
  background: transparent;
  color: var(--navy-700, var(--robotics-navy));
  font: inherit;
  font-size: 1.375rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s;
}

.sidenav-toggle:hover {
  background: rgb(6 38 77 / 6%);
  color: var(--navy-900, var(--robotics-navy));
}

.sidenav-toggle:focus-visible,
.sidenav-close:focus-visible,
.sidenav-link:focus-visible {
  outline: 0.2rem solid var(--robotics-focus);
  outline-offset: 0.15rem;
}

.sidenav-backdrop {
  position: fixed;
  z-index: 90;
  inset: 0;
  background: rgb(6 20 40 / 45%);
}

.product-sidenav {
  position: fixed;
  z-index: 100;
  top: 0;
  bottom: 0;
  left: 0;
  width: min(86vw, 20rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0 0 2rem;
  border-right: 1px solid var(--robotics-border);
  background: var(--robotics-surface);
  color: var(--robotics-ink);
  box-shadow: 0 0 2rem rgb(0 0 0 / 25%);
}

.product-sidenav[hidden],
.sidenav-backdrop[hidden] {
  display: none;
}

.sidenav-head {
  position: sticky;
  z-index: 1;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid transparent;
  border-image: var(--robotics-rainbow) 1;
  background: var(--robotics-surface);
  color: var(--robotics-navy);
}

.sidenav-close {
  min-width: 2.75rem;
  min-height: 2.75rem;
  border: 1px solid var(--robotics-border);
  border-radius: 999px;
  background: var(--robotics-surface);
  color: var(--robotics-ink);
  font: inherit;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}

.sidenav-section {
  padding: 0.75rem 0.5rem 0;
}

.sidenav-title {
  margin: 0;
  padding: 0.25rem 0.75rem;
  color: var(--robotics-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.sidenav-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.sidenav-link {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.65rem;
  padding: 0.45rem 0.75rem;
  border-radius: var(--robotics-radius-sm);
  color: var(--robotics-ink);
  font-size: 0.95rem;
  text-decoration: none;
}

.sidenav-link:hover {
  background: var(--robotics-surface-soft);
}

.sidenav-link[aria-current="page"] {
  background: var(--robotics-info-bg);
  color: var(--robotics-navy);
  font-weight: 700;
}

.sidenav-icon {
  width: 1.5rem;
  flex: 0 0 auto;
  text-align: center;
}

html.sidenav-open {
  overflow: hidden;
}

@media (prefers-reduced-motion: no-preference) {
  .product-sidenav:not([hidden]) {
    animation: sidenav-in 0.16s ease-out;
  }
}

@keyframes sidenav-in {
  from {
    transform: translateX(-1.5rem);
    opacity: 0;
  }
}

@media print {
  .sidenav-toggle,
  .sidenav-backdrop,
  .product-sidenav {
    display: none;
  }
}

/* ── AGORA本体との共通デザイン（フッター・レール・コンテンツ） ─────────────────────────────────────────── */

/* フッター：AGORA・AGORA Stoa と同じ「ブランド＋カテゴリ別の列＋著作権」（.portal-footer と同じ見た目） */
.product-footer {
  padding: 2rem 1rem 1.5rem;
  border-top: 1px solid var(--robotics-border);
  border-image: none;
  background: var(--robotics-surface);
  color: var(--robotics-ink);
  font-size: 0.8125rem;
}

.footer-grid {
  display: grid;
  width: min(100%, var(--robotics-content));
  margin: 0 auto 1.5rem;
  grid-template-columns: minmax(12rem, 1.3fr) repeat(6, minmax(8rem, 1fr));
  gap: 1.5rem;
  text-align: left;
}

.footer-brand {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-brand p {
  margin: 0;
}

.footer-brand-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--robotics-navy);
  font-family: var(--font-family, inherit);
  font-size: var(--fs-h3, 1rem);
  font-weight: 700;
  text-decoration: none;
}

.footer-brand-link img {
  width: 2rem;
  height: 2rem;
  object-fit: contain;
}

.footer-note {
  color: var(--robotics-muted);
  font-size: 0.75rem;
  line-height: 1.6;
}

.footer-nav {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.25rem;
}

.footer-nav h3 {
  margin: 0 0 0.25rem;
  color: var(--navy-700, var(--robotics-navy));
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.footer-nav a {
  display: inline-block;
  padding-block: 0.2rem;
  color: var(--robotics-ink);
  text-decoration: none;
}

.footer-nav a:hover {
  text-decoration: underline;
}

.footer-nav a:focus-visible,
.footer-brand-link:focus-visible {
  outline: 0.2rem solid var(--robotics-focus);
  outline-offset: 0.15rem;
}

.footer-bottom {
  width: min(100%, var(--robotics-content));
  margin: 0 auto;
  padding-top: 1.25rem;
  border-top: 1px solid var(--robotics-border);
  color: var(--robotics-ink);
  font-size: 0.6875rem;
  opacity: 0.7;
  text-align: center;
}

@media (max-width: 64rem) {
  .footer-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 40rem) {
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* レール：AGORA本体の .rail-panel と同じ「見出しの帯＋本文」。中身（説明・リンク）は各ページのまま */
.rail .panel,
.app-rail .panel {
  padding: 0;
  overflow: hidden;
  border-radius: var(--robotics-radius);
  box-shadow: none;
}

.rail .panel > h2,
.app-rail .panel > h2 {
  margin: 0;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--robotics-border);
  color: var(--robotics-muted);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0;
}

.rail .panel > :not(h2):not(.rail-link),
.app-rail .panel > :not(h2):not(.rail-link) {
  margin-inline: 1rem;
}

.rail .panel > h2 + :not(.rail-link),
.app-rail .panel > h2 + :not(.rail-link) {
  margin-top: 0.75rem;
}

.rail .panel > :last-child:not(.rail-link),
.app-rail .panel > :last-child:not(.rail-link) {
  margin-bottom: 1rem;
}

.rail-links {
  padding-bottom: 0.25rem;
}

.rail-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  color: inherit;
  text-decoration: none;
}

.rail-link:hover {
  background: var(--robotics-surface-soft);
}

.rail-link:focus-visible {
  outline: 0.2rem solid var(--robotics-focus);
  outline-offset: -0.2rem;
}

.rail-link-icon {
  display: flex;
  width: 2rem;
  height: 2rem;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border-radius: var(--robotics-radius-sm);
  background: var(--robotics-info-bg);
  font-size: 0.95rem;
}

.rail-link-body {
  display: flex;
  min-width: 0;
  flex: 1 1 auto;
  flex-direction: column;
}

.rail-link-title {
  overflow: hidden;
  color: var(--robotics-ink);
  font-size: 0.8125rem;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rail-link-desc {
  color: var(--robotics-muted);
  font-size: 0.6875rem;
}

.rail-link-arrow {
  flex: 0 0 auto;
  color: var(--robotics-muted);
}

/* コンテンツ：AGORA本体のカードと同じ（上の青い太線をやめ、罫線・角丸・薄い影。見出しは紺で統一） */
.card {
  border-top: 1px solid var(--robotics-border);
  box-shadow: var(--shadow-sm, 0 1px 2px rgb(0 0 0 / 5%));
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.card:hover {
  border-color: var(--robotics-border);
  box-shadow: var(--shadow-card, 0 2px 12px rgb(0 0 0 / 8%));
}

.main-stack > .panel,
.content-grid > .panel {
  box-shadow: var(--shadow-sm, 0 1px 2px rgb(0 0 0 / 5%));
}

.panel > h2,
.main-stack h2 {
  color: var(--robotics-navy);
  font-weight: 800;
}

@media (prefers-reduced-motion: reduce) {
  .card {
    transition: none;
  }
}

@media print {
  .product-footer .footer-grid {
    display: block;
  }
}

/* ── リンクをボタンに・5つの入口（D-970） ─────────────────────────────────────────── */

/* ボタン：AGORA本体の .btn-outline と同じ「白地＋閉じた細い枠」（D-942の上下線だけは、端が開いて崩れて見えたため改めた）。
   パネル・カードの中に単独で置かれたリンク（「問い合わせ」「安全のルールを読む」等）も、同じボタンにする。
   文章の途中のリンクは、そのまま（直下の子だけが対象） */
.button.secondary,
.panel > a:not(.button):not(.rail-link),
.card > a:not(.button),
.empty-state > a:not(.button),
.entry-card > a:not(.button) {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border-strong, #c7ccd4);
  border-radius: 0.625rem;
  background: var(--robotics-surface);
  color: var(--robotics-ink);
  font-weight: 700;
  text-decoration: none;
}

.button.secondary:hover,
.panel > a:not(.button):not(.rail-link):hover,
.card > a:not(.button):hover,
.empty-state > a:not(.button):hover,
.entry-card > a:not(.button):hover {
  background: var(--robotics-surface-soft);
  color: var(--robotics-ink);
}

.panel > a:not(.button):not(.rail-link):focus-visible,
.card > a:not(.button):focus-visible,
.empty-state > a:not(.button):focus-visible,
.entry-card > a:not(.button):focus-visible {
  outline: 0.2rem solid var(--robotics-focus);
  outline-offset: 0.15rem;
}

/* 5つの入口：学ぶ→設計→仮想で組む→検証→現実、の順を、番号つきのカードで。上段3枚・下段2枚で、空きを作らない */
.entry-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1rem;
}

.entry-card {
  display: flex;
  min-width: 0;
  grid-column: span 2;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.1rem 1.15rem 1.15rem;
  border: 1px solid var(--robotics-border);
  border-radius: var(--robotics-radius);
  background: var(--robotics-surface);
  box-shadow: var(--shadow-sm, 0 1px 2px rgb(0 0 0 / 5%));
}

.entry-card:nth-child(n + 4) {
  grid-column: span 3;
}

.entry-card[data-state="open"] {
  border-color: var(--robotics-ready-border);
}

.entry-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.entry-icon {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 0.6rem;
  background: var(--navy-100, var(--robotics-info-bg));
  font-size: 1.3rem;
  line-height: 1;
}

.entry-no {
  color: var(--robotics-muted);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.entry-head .tag {
  margin-left: auto;
}

.entry-card h3 {
  margin: 0.15rem 0 0;
  color: var(--robotics-navy);
  font-size: 1.1rem;
  font-weight: 800;
}

.entry-card p {
  margin: 0;
  color: var(--robotics-ink);
  font-size: 0.9rem;
  line-height: 1.75;
}

.entry-card > a {
  margin-top: auto;
  align-self: flex-start;
}

@media (max-width: 64rem) {
  .entry-card,
  .entry-card:nth-child(n + 4) {
    grid-column: span 3;
  }

  .entry-card:last-child {
    grid-column: span 6;
  }
}

@media (max-width: 40rem) {
  .entry-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .entry-card,
  .entry-card:nth-child(n + 4),
  .entry-card:last-child {
    grid-column: auto;
  }
}