@charset "UTF-8";

/* ============================================================
   金融知識 TOPページ スタイル
   スマートフォンファースト（375px基準）
   ブレイクポイント：768px（タブレット） / 1024px（PC）
   ============================================================ */


/* ------------------------------------------------------------
   1. デザイントークン
   ※【色の変更】ここを書き換えるとサイト全体の色が変わります
   ------------------------------------------------------------ */
:root {
  /* カラー */
  --color-background: #fafafa;
  --color-surface: #ffffff;
  --color-text-primary: #111111;
  --color-text-secondary: #6b7280;
  --color-border: #e5e7eb;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #eff6ff;
  --color-dark: #111111;
  --color-dark-hover: #2b2b2b;

  /* LINEボタン専用色（ここ以外では緑を使用しない） */
  --color-line: #06c755;
  --color-line-hover: #05b34c;

  /* 角丸 */
  --radius-card: 20px;
  --radius-small: 12px;
  --radius-pill: 999px;

  /* 影 */
  --shadow-card: 0 8px 30px rgba(17, 24, 39, 0.04);
  --shadow-card-hover: 0 14px 40px rgba(17, 24, 39, 0.08);

  /* レイアウト */
  --content-max: 1200px;
  --gutter: 20px;
  --header-height: 64px;

  /* フォント */
  --font-base: Inter, "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}


/* ------------------------------------------------------------
   2. ベース
   ------------------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--color-background);
  color: var(--color-text-primary);
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.8;
  font-weight: 400;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p, ul, ol, figure {
  margin: 0;
  padding: 0;
}

ul, ol {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Lucideアイコンのサイズを統一（CLS防止のため寸法を固定） */
.svg-placeholder,
[data-lucide],
svg.lucide {
  width: 20px;
  height: 20px;
  stroke-width: 1.75;
  flex: none;
  display: inline-block;
  vertical-align: middle;
}

/* フォーカス表示 */
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 6px;
}

/* 本文へスキップ */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--color-dark);
  color: #ffffff;
  padding: 12px 20px;
  border-radius: 0 0 var(--radius-small) 0;
}
.skip-link:focus {
  left: 0;
}


/* ------------------------------------------------------------
   3. レイアウト共通
   ------------------------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section {
  padding-top: 64px;
  padding-bottom: 64px;
  scroll-margin-top: calc(var(--header-height) + 8px);
}

.section--surface {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section--accent {
  background-color: var(--color-primary-light);
}

.section-heading {
  margin-bottom: 28px;
}

.section-heading__title {
  font-size: 24px;
  line-height: 1.45;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-heading__lead {
  margin-top: 12px;
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.8;
}

.section-footer {
  margin-top: 32px;
  display: flex;
  justify-content: center;
}


/* ------------------------------------------------------------
   4. ボタン
   ------------------------------------------------------------ */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  min-height: 56px;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease, transform .12s ease;
}

.button i,
.button svg {
  width: 18px;
  height: 18px;
  transition: transform .2s ease;
}

.button:hover i,
.button:hover svg {
  transform: translateX(3px);
}

.button:active {
  transform: scale(0.98);
}

.button--primary {
  background-color: var(--color-dark);
  color: #ffffff;
}
.button--primary:hover {
  background-color: var(--color-dark-hover);
}

.button--secondary {
  min-height: 52px;
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  border-color: var(--color-border);
}
.button--secondary:hover {
  border-color: #d1d5db;
  background-color: #fcfcfc;
}

.button--line {
  background-color: var(--color-line);
  color: #ffffff;
}
.button--line:hover {
  background-color: var(--color-line-hover);
}

/* アイコンのみのボタン */
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: var(--radius-pill);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: background-color .2s ease;
}
.icon-button:hover {
  background-color: #f3f4f6;
}
.icon-button i,
.icon-button svg {
  width: 22px;
  height: 22px;
}


/* ------------------------------------------------------------
   5. ヘッダー
   ------------------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  width: 100%;
  max-width: var(--content-max);
  height: var(--header-height);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.02em;
}

.site-logo__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.site-logo__mark i,
.site-logo__mark svg {
  width: 19px;
  height: 19px;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 2px;
}

/* PC用ナビゲーション（1024px未満では非表示） */
.global-nav {
  display: none;
}


/* ------------------------------------------------------------
   6. ドロワーメニュー
   ------------------------------------------------------------ */
.drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  background-color: rgba(17, 17, 17, 0.35);
  opacity: 0;
  transition: opacity .25s ease;
}
.drawer-overlay.is-open {
  opacity: 1;
}

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 70;
  width: min(320px, 86vw);
  height: 100%;
  padding: 12px 20px 40px;
  background-color: var(--color-surface);
  border-left: 1px solid var(--color-border);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform .28s ease;
}
.drawer.is-open {
  transform: translateX(0);
}

.drawer__head {
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer__title {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-secondary);
  letter-spacing: 0.06em;
}

.drawer__list {
  margin-top: 8px;
}

.drawer__list li + li {
  border-top: 1px solid var(--color-border);
}

.drawer__list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  padding: 8px 4px;
  font-size: 16px;
  font-weight: 500;
}

.drawer__list a:hover {
  color: var(--color-primary);
}

.drawer__list i,
.drawer__list svg {
  width: 18px;
  height: 18px;
  color: var(--color-text-secondary);
}

/* メニュー展開中は背面のスクロールを止める */
body.is-menu-open {
  overflow: hidden;
}


/* ------------------------------------------------------------
   7. ファーストビュー
   ------------------------------------------------------------ */
.hero {
  padding-top: 48px;
  padding-bottom: 56px;
}

.hero__label {
  display: inline-block;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.6;
}

.hero__title {
  margin-top: 20px;
  font-size: 32px;
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero__lead {
  margin-top: 20px;
  color: var(--color-text-secondary);
  font-size: 16px;
  line-height: 1.85;
}

.hero__actions {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ヒーローの抽象ビジュアル */
.hero__visual {
  margin-top: 44px;
}

.hero-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.hero-stack__card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hero-stack__card--a { margin-right: 32px; }
.hero-stack__card--b { margin-left: 32px; }
.hero-stack__card--c { margin-right: 16px; }

.hero-stack__eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
}

.hero-stack__row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-stack__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}
.hero-stack__icon i,
.hero-stack__icon svg {
  width: 22px;
  height: 22px;
}

.hero-stack__name {
  font-size: 17px;
  font-weight: 700;
}

.hero-stack__name--sm {
  font-size: 15px;
}

.hero-stack__track {
  display: block;
  height: 8px;
  border-radius: var(--radius-pill);
  background-color: #f3f4f6;
  overflow: hidden;
}

.hero-stack__bar {
  display: block;
  width: 35%;
  height: 100%;
  border-radius: var(--radius-pill);
  background-color: var(--color-primary);
}


/* ------------------------------------------------------------
   8. カテゴリカード（人生から探す／金融カテゴリから探す 共通）
   ------------------------------------------------------------ */
.category-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.entry-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.entry-card:hover {
  transform: translateY(-4px);
  border-color: #d1d5db;
  box-shadow: var(--shadow-card-hover);
}

.entry-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 6px;
  border-radius: 14px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}
.entry-card__icon i,
.entry-card__icon svg {
  width: 24px;
  height: 24px;
}

.entry-card__title {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.5;
}

.entry-card__text {
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.8;
  flex-grow: 1;
}

.entry-card__action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 700;
}

.entry-card__action i,
.entry-card__action svg {
  width: 17px;
  height: 17px;
  transition: transform .2s ease;
}

.entry-card:hover .entry-card__action {
  text-decoration: underline;
}

.entry-card:hover .entry-card__action i,
.entry-card:hover .entry-card__action svg {
  transform: translateX(4px);
}


/* ------------------------------------------------------------
   9. 学習ロードマップ
   ------------------------------------------------------------ */
.roadmap {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.roadmap__step {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

/* 縦タイムラインの接続線（スマートフォン） */
.roadmap__step::after {
  content: "";
  position: absolute;
  left: 46px;
  bottom: -16px;
  width: 1px;
  height: 16px;
  background-color: var(--color-border);
}

.roadmap__step:last-child::after {
  display: none;
}

.roadmap__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.roadmap__title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
}

.roadmap__text {
  margin-top: 8px;
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.8;
}


/* ------------------------------------------------------------
   10. 記事カード（カテゴリページでも再利用できます）
   ------------------------------------------------------------ */
.article-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.article-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.article-card:hover {
  transform: translateY(-4px);
  border-color: #d1d5db;
  box-shadow: var(--shadow-card-hover);
}

.article-card__link {
  display: block;
  height: 100%;
}

.article-card__content {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 24px;
}

.article-card__category {
  align-self: flex-start;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.6;
}

.article-card__title {
  margin-top: 14px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.6;
  word-break: break-word;
}

.article-card__description {
  margin-top: 10px;
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.8;
  flex-grow: 1;
}

.article-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.article-card__footer time {
  color: var(--color-text-secondary);
  font-size: 14px;
}

.article-card__button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 700;
}

.article-card__button i,
.article-card__button svg {
  width: 17px;
  height: 17px;
  transition: transform .2s ease;
}

.article-card:hover .article-card__button {
  text-decoration: underline;
}

.article-card:hover .article-card__button i,
.article-card:hover .article-card__button svg {
  transform: translateX(4px);
}

/* サムネイル画像を使う場合（任意・article-card__content の前に配置） */
.article-card__thumb {
  aspect-ratio: 16 / 9;
  background-color: #f3f4f6;
}
.article-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}


/* ------------------------------------------------------------
   11. AI金融アシスタント
   ------------------------------------------------------------ */
.ai-assistant {
  background-color: var(--color-surface);
  border: 1px solid #dbe6fd;
  border-radius: var(--radius-card);
  padding: 32px 24px;
  box-shadow: var(--shadow-card);
  text-align: left;
}

.ai-assistant__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}
.ai-assistant__icon i,
.ai-assistant__icon svg {
  width: 26px;
  height: 26px;
}

.ai-assistant__title {
  margin-top: 18px;
  font-size: 23px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
}

.ai-assistant__lead {
  margin-top: 12px;
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.8;
}

.ai-assistant__field {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
  padding: 16px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background-color: var(--color-background);
  color: var(--color-text-secondary);
  font-size: 15px;
}
.ai-assistant__field i,
.ai-assistant__field svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
}

.ai-assistant__examples-label {
  margin-top: 24px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-secondary);
}

.ai-assistant__examples {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  margin-bottom: 28px;
}

.ai-assistant__examples li {
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background-color: var(--color-background);
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-primary);
}

.ai-assistant__note {
  margin-top: 20px;
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.7;
}


/* ------------------------------------------------------------
   12. LINE登録
   ------------------------------------------------------------ */
.line-cta {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 32px 24px;
}

.line-cta__title {
  font-size: 21px;
  font-weight: 700;
  line-height: 1.5;
}

.line-cta__text {
  margin-top: 12px;
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.8;
}

.line-cta .button--line {
  margin-top: 24px;
}


/* ------------------------------------------------------------
   13. フッター
   ------------------------------------------------------------ */
.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding-top: 48px;
  padding-bottom: 40px;
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.site-logo--footer {
  font-size: 16px;
}

.site-footer__description {
  margin-top: 14px;
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.8;
}

.site-footer__nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px 20px;
}

.site-footer__heading {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.site-footer__group ul {
  margin-top: 12px;
}

.site-footer__group li + li {
  margin-top: 4px;
}

.site-footer__group a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.site-footer__group a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.site-footer__disclaimer {
  margin-top: 40px;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background-color: var(--color-background);
  color: var(--color-text-secondary);
  font-size: 13px;
  line-height: 1.8;
}

.site-footer__copyright {
  margin-top: 24px;
  color: var(--color-text-secondary);
  font-size: 13px;
}


/* ------------------------------------------------------------
   14. スクロールアニメーション
   （.js が付いている＝JavaScript有効時のみ初期状態を隠す）
   ------------------------------------------------------------ */
.js .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s ease, transform .5s ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}


/* ------------------------------------------------------------
   15. タブレット（768px以上）
   ------------------------------------------------------------ */
@media (min-width: 768px) {
  :root {
    --gutter: 32px;
  }

  .section {
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .section-heading {
    margin-bottom: 36px;
  }

  .section-heading__title {
    font-size: 30px;
  }

  .section-heading__lead {
    font-size: 16px;
  }

  .button {
    width: auto;
  }

  .hero {
    padding-top: 72px;
    padding-bottom: 80px;
  }

  .hero__title {
    font-size: 44px;
  }

  .hero__lead {
    font-size: 17px;
  }

  .hero__actions {
    flex-direction: row;
    align-items: center;
  }

  .hero__visual {
    margin-top: 56px;
  }

  .hero-stack {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .hero-stack__card--a,
  .hero-stack__card--b,
  .hero-stack__card--c {
    margin: 0;
  }

  .hero-stack__card--c {
    grid-column: 1 / -1;
  }

  .category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .article-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .roadmap {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .roadmap__step::after {
    display: none;
  }

  .ai-assistant {
    padding: 44px 40px;
  }

  .ai-assistant__title {
    font-size: 28px;
  }

  .line-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding: 40px;
  }

  .line-cta .button--line {
    margin-top: 0;
    flex: none;
  }

  .site-footer__top {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .site-footer__nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}


/* ------------------------------------------------------------
   16. PC（1024px以上）
   ------------------------------------------------------------ */
@media (min-width: 1024px) {
  :root {
    --gutter: 40px;
    --header-height: 72px;
  }

  .section {
    padding-top: 104px;
    padding-bottom: 104px;
  }

  .section-heading__title {
    font-size: 34px;
  }

  /* PCではグローバルナビを表示し、ハンバーガーを隠す */
  .global-nav {
    display: block;
    flex: 1;
    margin-left: 24px;
  }

  .global-nav__list {
    display: flex;
    align-items: center;
    gap: 22px;
  }

  .global-nav__list a {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color .2s ease;
  }

  .global-nav__list a:hover {
    color: var(--color-text-primary);
  }

  .menu-button {
    display: none;
  }

  .hero {
    padding-top: 96px;
    padding-bottom: 112px;
  }

  .hero__inner {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 64px;
  }

  .hero__title {
    font-size: 54px;
  }

  .hero__visual {
    margin-top: 0;
  }

  .hero-stack__card--a {
    transform: translateY(-10px);
  }

  .hero-stack__card--b {
    transform: translateY(10px);
  }

  .category-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .article-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .roadmap {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
  }

  .roadmap__step {
    flex-direction: column;
    gap: 18px;
  }

  .roadmap__number {
    width: 52px;
    height: 52px;
    font-size: 19px;
  }

  .ai-assistant {
    max-width: 780px;
    margin: 0 auto;
    padding: 56px;
    text-align: center;
  }

  .ai-assistant__examples {
    justify-content: center;
  }

  .ai-assistant__field {
    text-align: left;
  }
}


/* ------------------------------------------------------------
   17. アニメーションを減らす設定への対応
   ------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}