/* =========================================================
   ユニキャスト 清掃ロボット LP — 共有スタイルシート
   モバイルファースト。主ブレークポイントは min-width: 768px。
   ========================================================= */

/* ---------- 1. デザイントークン ---------- */
:root {
  /*
   * アクセシビリティ上の調整（元デザインからの意図的な逸脱）:
   * - 元の primary #2B9FFF に白文字だとコントラスト比が約 2.9:1 で AA 未達のため、
   *   ボタン背景には少し濃い --c-primary (#1873C9, 白文字で約 4.8:1) を使う。
   *   見出しバーなど装飾要素・大きな文字は元の --c-primary-brand のまま。
   * - orange / red も白地で 4.5:1 を確保するため暗めの値を既定にし、
   *   元の明るい値は --c-*-brand として保持（大きな装飾用途のみ）。
   */
  --c-primary: #1873C9;
  --c-primary-brand: #2B9FFF;
  --c-navy: #0B318F;
  --c-faq-q: #0091EA;
  --c-faq-a: #EC407A;
  --c-orange: #CC4400;
  --c-orange-brand: #FF6500;
  --c-red: #D40000;
  --c-red-brand: #FF0000;
  --c-text: #333333;
  --c-black: #000000;
  --c-gray: #4B4B4B;
  --c-white: #FFFFFF;
  --c-bg-light: #F9F9F8;
  --c-bg-footer: #F7F7F7;
  --c-bg-blue: #A6CAEC;
  --c-marker: #CCEEFF;
  --c-spec-th: #DFDFDF;
  --c-hero-card: rgba(255, 255, 255, 0.75);
  --c-card-overlay: rgba(248, 247, 246, 0.8);

  --header-h: 64px;
  --radius: 8px;
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.08);
  --font-body: Inter, "Noto Sans JP", system-ui, sans-serif;
  --font-heading: "Noto Sans JP", Inter, sans-serif;
}

@media (min-width: 768px) {
  :root { --header-h: 72px; }
}

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

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

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

body {
  padding-top: var(--header-h);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
}

body.is-menu-open { overflow: hidden; }

h1, h2, h3 { font-family: var(--font-heading); line-height: 1.4; }

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

a { color: inherit; }

table { border-collapse: collapse; }

strong { font-weight: 700; }

.material-icons {
  font-family: 'Material Icons';
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
}

/* フォーカスリング（キーボード操作で常に見える） */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--c-navy);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* ---------- 3. レイアウト共通 ---------- */
.container {
  max-width: 1040px;
  margin-inline: auto;
  padding-inline: 20px;
}
.container--narrow { max-width: 880px; }

.section { padding-block: 56px; }
.section--light { background: var(--c-bg-light); }

section[id] { scroll-margin-top: 80px; }

@media (min-width: 768px) {
  .section { padding-block: 96px; }
}

/* 強調語 */
.em-orange { color: var(--c-orange); font-weight: 700; }
.em-red { color: var(--c-red); font-weight: 400; }

/* 見出し: マーカー風（お悩み・活用シーン） */
.h-marker {
  margin-bottom: 32px;
  text-align: center;
  font-size: 20px;
  font-weight: 700;
  color: var(--c-black);
}
.h-marker span {
  background: linear-gradient(transparent 55%, var(--c-marker) 55%);
  padding-inline: 4px;
}

/* 見出し: 縦バー風（その他のセクション） */
.h-bar {
  position: relative;
  margin-bottom: 32px;
  padding-left: 20px;
  font-size: 24px;
  font-weight: 700;
}
.h-bar::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.15em;
  bottom: 0.15em;
  width: 10px;
  background: var(--c-primary-brand);
}

@media (min-width: 768px) {
  .h-marker { margin-bottom: 48px; font-size: 40px; }
  .h-bar { margin-bottom: 48px; font-size: 32px; }
}

/* ---------- 4. ボタン ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  text-decoration: none;
  text-align: center;
  transition: opacity 0.2s;
}
.btn:hover { opacity: 0.85; }
.btn .material-icons { font-size: 1.1em; }

.btn--primary { background: var(--c-primary); color: var(--c-white); }

.btn--small { padding: 8px 24px; font-size: 16px; }

@media (min-width: 768px) {
  .btn { padding: 12px 32px; font-size: 24px; }
  .btn--small { padding: 8px 24px; font-size: 16px; }
}

/* 暗背景 CTA 用の白ボタン */
.btn--light {
  width: 90%;
  max-width: 300px;
  padding: 12px;
  border-radius: 4px;
  background: #F8F7F6;
  color: var(--c-black);
  font-size: 14px;
  font-weight: 600;
}
.btn--light .material-icons { font-size: 20px; }

@media (min-width: 768px) {
  .btn--light { width: 300px; padding: 12px; font-size: 14px; }
}

/* ---------- 5. ヘッダー・SPメニュー ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--c-white);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
  transition: box-shadow 0.2s;
}
.site-header.is-scrolled { box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18); }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding-inline: 16px;
}

.site-header__logo img { width: 180px; height: auto; }

.gnav, .site-header__cta { display: none; }

.menu-toggle, .sp-menu__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--c-text);
  cursor: pointer;
}
.menu-toggle .material-icons { font-size: 32px; }

.sp-menu {
  position: fixed;
  inset: 0;
  z-index: 200;
  overflow-y: auto;
  padding: 0 16px 32px;
  background: var(--c-bg-light);
}
.sp-menu[hidden] { display: none; }

.sp-menu__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}
.sp-menu__close {
  border-radius: 50%;
  background: var(--c-primary);
  color: var(--c-white);
}

.sp-menu__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 24px;
  margin-top: 24px;
  list-style: none;
}
.sp-menu__link {
  display: block;
  padding: 16px 4px;
  border-bottom: 1px solid #999;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  text-decoration: none;
}

.sp-menu__cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-top: 32px;
}

@media (min-width: 768px) {
  .site-header__inner { padding-inline: 24px; }
  .site-header__logo img { width: 230px; }
  .menu-toggle, .sp-menu { display: none !important; }

  .gnav { display: block; margin-left: auto; margin-right: 16px; }
  .gnav__list { display: flex; gap: 14px; list-style: none; }
  .gnav__link {
    white-space: nowrap;
    font-size: 14px;
    font-weight: 600;
    color: var(--c-text);
    text-decoration: none;
  }
  .gnav__link:hover { text-decoration: underline; }

  .site-header__cta { display: flex; gap: 12px; }
  .site-header__cta .btn { white-space: nowrap; }
}

/* 1024px 以上では元ページと同じ文字サイズ・間隔に戻す（768〜1023px は折り返し防止のため詰める） */
@media (min-width: 1024px) {
  .gnav { margin-right: 24px; }
  .gnav__list { gap: 20px; }
  .gnav__link { font-size: 16px; }
}

/* ---------- 6. トライアル固定ボタン ---------- */
.trial-fab {
  position: fixed;
  right: 8px;
  bottom: 24px;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: var(--c-navy);
  color: var(--c-white);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

@media (min-width: 768px) {
  .trial-fab {
    right: 16px;
    bottom: auto;
    top: min(600px, calc(100vh - 140px));
    width: 120px;
    height: 120px;
    font-size: 15px;
  }
}

/* ---------- 7. ヒーロー ---------- */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 520px;
  background: #ddd url("/assets/img/cleaning-robot/hero-office.jpg") center / cover no-repeat;
}
.hero__inner { position: relative; z-index: 1; padding-top: 24px; }

.hero__card {
  display: inline-block;
  max-width: 100%;
  padding: 16px 20px;
  border-radius: var(--radius);
  background: var(--c-hero-card);
}
.hero__title { font-size: 26px; font-weight: 700; color: var(--c-black); }
.hero__lead { margin-top: 8px; font-size: 14px; font-weight: 500; color: var(--c-text); }

.hero__robot {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 92%;
  max-width: 440px;
  transform: translateX(-50%);
}

@media (min-width: 768px) {
  .hero { display: flex; align-items: center; min-height: 700px; }
  .hero__inner { width: 100%; padding-top: 0; }
  .hero__card { padding: 32px 40px; }
  .hero__title { font-size: 48px; }
  .hero__lead { margin-top: 12px; font-size: 20px; }

  .hero__robot {
    left: auto;
    right: -200px; /* 元ページ同様、ロボットを右寄せして画像の余白を画面外へ逃がす */
    width: auto;
    max-width: none;
    height: 100%;
    transform: none;
  }
}

/* ---------- 8. CTA（上部・レンタルプラン内） ---------- */
.cta__inner { text-align: center; }
.cta__title { font-size: 16px; font-weight: 700; color: var(--c-black); }
.cta__note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  margin-top: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-red);
}
.cta__buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
}

@media (min-width: 768px) {
  .cta__title { font-size: 28px; }
  .cta__note { margin-top: 12px; font-size: 28px; }
  .cta__buttons { flex-direction: row; justify-content: center; gap: 16px; margin-top: 24px; }
}

/* ---------- 9. お悩み・カード ---------- */
.problem { text-align: center; }

.problem__list {
  display: inline-block;
  list-style: none;
  text-align: left;
  font-size: 16px;
}
.problem__list li { display: flex; align-items: center; gap: 4px; margin-bottom: 4px; }
.problem__list .material-icons { font-size: 20px; color: var(--c-black); }

.problem__etc { margin-top: 8px; font-size: 14px; }
.problem__summary { margin-top: 20px; font-size: 18px; }
.problem__summary-em { font-size: 26px; font-weight: 600; color: var(--c-red); }
.problem__lead { margin-top: 20px; font-size: 16px; }
.problem__arrow { margin-top: 20px; font-size: 48px; }

.cases { display: grid; gap: 28px; margin-top: 40px; text-align: left; }

.case {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 240px;
  padding: 32px 20px;
  border-radius: var(--radius);
  background: #e8e8e8 center / cover no-repeat;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.18);
}
.case__label {
  position: absolute;
  top: -12px;
  left: -8px;
  padding: 2px 20px;
  background: var(--c-black);
  color: var(--c-white);
  font-size: 18px;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.case__panel {
  width: 100%;
  padding: 24px 16px;
  border-radius: var(--radius);
  background: var(--c-card-overlay);
  text-align: center;
}
.case__title { font-size: 22px; font-weight: 900; color: var(--c-black); }
.case__body { margin-top: 12px; font-size: 14px; }
.case__price { margin-top: 8px; font-size: 16px; }
.case__price-value { font-size: 30px; font-weight: 600; color: var(--c-orange); }
.case__note { margin-top: 8px; font-size: 13px; text-align: left; }
.case__note--lg { font-size: 14px; text-align: center; }

.chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
  list-style: none;
}
.chips li {
  padding: 4px 12px;
  border-radius: 4px;
  background: var(--c-white);
  font-size: 16px;
  font-weight: 500;
}

@media (min-width: 768px) {
  .problem__list { font-size: 24px; }
  .problem__list li { gap: 8px; margin-bottom: 8px; }
  .problem__list .material-icons { font-size: 28px; }
  .problem__etc { font-size: 20px; }
  .problem__summary { margin-top: 24px; font-size: 24px; }
  .problem__summary-em { font-size: 32px; }
  .problem__lead { margin-top: 28px; font-size: 24px; }
  .problem__arrow { margin-top: 24px; font-size: 64px; }

  .cases { grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; }
  .case { min-height: 0; padding: 28px 12px 16px; }
  .case__label { top: -14px; left: -14px; font-size: 26px; }
  .case__panel { padding: 20px 12px; }
  .case__title { font-size: 24px; }
  .case__body { font-size: 17px; }
  .case__price { font-size: 24px; }
  .case__price-value { font-size: 36px; }
}

/* ---------- 10. 活用シーン（カルーセル） ---------- */
.scene { background: var(--c-white); }

.carousel { position: relative; }

.carousel__track {
  display: flex;
  gap: 16px;
  margin: 0;
  padding: 0 calc(50% - 150px);
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}
.carousel__track::-webkit-scrollbar { display: none; }

.carousel__slide { flex: 0 0 auto; scroll-snap-align: center; }

.scene-card {
  position: relative;
  width: 300px;
  height: 220px;
  overflow: hidden;
  border-radius: var(--radius);
}
.scene-card__img {
  position: absolute;
  inset: 0;
  background: #ddd center / cover no-repeat;
}
.scene-card__label {
  position: absolute;
  left: 16px;
  bottom: 16px;
  padding: 6px 16px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.85);
  color: var(--c-black);
  font-size: 18px;
  font-weight: 900;
}

.carousel__btn {
  position: absolute;
  top: 50%;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--c-white);
  color: var(--c-primary);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
  cursor: pointer;
  transform: translateY(-50%);
}
.carousel__btn[aria-disabled="true"] { opacity: 0.4; cursor: default; }
.carousel__btn--prev { left: 8px; }
.carousel__btn--next { right: 8px; }

@media (min-width: 768px) {
  .carousel__track { padding: 0 calc(50% - 315px); }
  .scene-card { width: 630px; height: 360px; }
  .scene-card__label { left: 24px; bottom: 24px; padding: 8px 24px; font-size: 24px; }
  .carousel__btn--prev { left: calc(50% - 365px); }
  .carousel__btn--next { right: calc(50% - 365px); }
}

/* ---------- 11. 4つのPOINT ---------- */
.feature { padding-block: 24px; background: var(--c-bg-light); }

/* 元デザインの大きな楕円（wave 画像）は、角丸の楕円で再現する */
.feature__blob {
  padding: 80px 16px;
  background: var(--c-bg-blue);
  border-radius: 50% / 60px;
}

.feature__card {
  max-width: 880px;
  margin-inline: auto;
  padding: 32px 20px;
  border-radius: var(--radius);
  background: var(--c-white);
}
.feature__card .h-bar { margin-bottom: 24px; }

.point { display: grid; gap: 16px; padding-block: 24px; }
.point + .point { border-top: 1px solid var(--c-black); }
.point__title { font-size: 20px; font-weight: 500; }
.point__body { margin-top: 8px; font-size: 14px; }
.point__img { width: 100%; }

@media (min-width: 768px) {
  .feature { padding-block: 40px; }
  .feature__blob { padding: 160px 24px; border-radius: 50% / 120px; }
  .feature__card { padding: 48px 24px; }
  .feature__card .h-bar { margin-bottom: 32px; }

  .point { grid-template-columns: 1fr 387px; align-items: center; gap: 40px; padding-block: 32px; }
  .point--reverse { grid-template-columns: 387px 1fr; }
  .point--reverse .point__img { order: -1; }
  .point__text { padding-inline: 16px; }
  .point__title { font-size: 24px; }
  .point__body { margin-top: 16px; font-size: 18px; }
}

/* ---------- 12. 白カード共通（その他の特徴・ラインアップ） ---------- */
.cards { display: grid; gap: 24px; }

.card {
  padding: 32px 20px;
  border-radius: var(--radius);
  background: var(--c-white);
  box-shadow: var(--shadow-card);
  text-align: center;
}
.card__title { font-size: 20px; font-weight: 900; color: var(--c-black); }
.card__body { margin-top: 12px; font-size: 16px; }
.card__img { margin: 16px auto 0; }

@media (min-width: 768px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .card { padding: 32px 24px; }
  .card__title { font-size: 28px; }
  .card__body { font-size: 20px; }
}

/* 対応床材 */
.floors {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin: 16px 0;
  list-style: none;
}
.floors__item { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.floors__thumb {
  position: relative;
  display: block;
  width: 60px;
  height: 60px;
  overflow: hidden;
  border-radius: 4px;
  background: #ddd center / cover no-repeat;
}
.floors__badge {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 1px 0;
  background: rgba(0, 0, 0, 0.6);
  color: var(--c-white);
  font-size: 12px;
  line-height: 1.4;
}
.floors__label { font-size: 14px; }

@media (min-width: 768px) {
  .floors__label { font-size: 16px; }
  .floors__badge { font-size: 14px; }
}

/* ラインアップ */
.lineup-card__robot {
  width: auto;
  height: 200px;
  max-width: 100%;
  margin: 16px auto 0;
  object-fit: contain;
}
.functions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  list-style: none;
}
.function { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.function img { width: 64px; height: 64px; }
.function__label { font-size: 14px; font-weight: 600; color: var(--c-gray); }

@media (min-width: 768px) {
  .lineup-card__robot { height: 240px; }
  .functions { gap: 8px 16px; margin-top: 32px; }
  .function img { width: 80px; height: 80px; }
  .function__label { font-size: 18px; }
}

/* ---------- 13. レンタルプラン ---------- */
.fee__lead {
  margin-bottom: 40px;
  text-align: center;
  font-size: 20px;
  font-weight: 700;
  color: var(--c-text);
}
.fee .cases { margin-top: 0; }
.fee__cta { margin-top: 48px; }
.fee__cta .cta__note { margin-top: 0; }

.case--rental { min-height: 200px; }
.case--rental .case__panel { min-height: 160px; }

@media (min-width: 768px) {
  .fee__lead { margin-bottom: 56px; font-size: 36px; }
  .fee__cta { margin-top: 64px; }
}

/* ---------- 14. 独自の強み ---------- */
.strength__body {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.strength__img { width: 100%; max-width: 338px; }
.strength__text { font-size: 16px; }
.strength__text .em-red { font-size: 20px; }

@media (min-width: 768px) {
  .strength__body { flex-direction: row; justify-content: center; gap: 48px; }
  .strength__img { flex: 0 0 338px; }
  .strength__text { font-size: 24px; }
  .strength__text .em-red { font-size: 28px; }
}

/* ---------- 15. 製品仕様 ---------- */
.spec__block + .spec__block { margin-top: 56px; }
.spec__body { display: flex; flex-direction: column; align-items: center; gap: 24px; overflow: hidden; }
/* 製品写真は透過 PNG 由来で周囲に余白が大きいので、元ページ同様に拡大して見せる（余白は透明なので重なっても問題ない） */
.spec__img { width: 100%; max-width: 420px; object-fit: contain; transform: scale(1.3); transform-origin: center; }

.spec-table { width: 100%; font-size: 14px; }
.spec-table th, .spec-table td {
  padding: 4px 8px;
  border: 1px solid var(--c-black);
  text-align: center;
  font-weight: 400;
}
.spec-table th { width: 38%; }
.spec-table tr:nth-child(odd) th,
.spec-table tr:nth-child(odd) td { background: var(--c-spec-th); }

@media (min-width: 768px) {
  .spec__block + .spec__block { margin-top: 96px; }
  .spec__body { flex-direction: row; gap: 24px; }
  .spec__img { flex: 0 1 420px; transform: scale(1.55); }
  .spec-table { flex: 0 0 600px; width: 600px; font-size: 18px; }
  .spec-table th { width: 171px; }
}

/* ---------- 16. Q&A ---------- */
.faq { display: grid; gap: 16px; }

.faq__q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border: 2px solid var(--c-black);
  border-radius: var(--radius);
  background: var(--c-white);
  cursor: pointer;
  list-style: none;
}
.faq__q::-webkit-details-marker { display: none; }

.faq__q-mark { font-size: 20px; font-weight: 700; color: var(--c-faq-q); }
.faq__q-text { flex: 1; font-size: 15px; font-weight: 700; }
.faq__arrow { transition: transform 0.2s; }
.faq__item[open] .faq__arrow { transform: rotate(180deg); }

.faq__a { display: flex; gap: 12px; padding: 12px 16px; }
.faq__a-mark {
  font-family: Lato, sans-serif;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--c-faq-a);
}
.faq__a p { font-size: 15px; color: var(--c-text); }

@media (min-width: 768px) {
  .faq__q { padding: 16px 24px; }
  .faq__q-text { font-size: 20px; }
  .faq__a { padding: 12px 24px; }
  .faq__a p { font-size: 20px; }
}

/* ---------- 17. 最終 CTA（暗背景） ---------- */
.cta-dark {
  display: flex;
  align-items: center;
  min-height: 440px;
  padding-block: 56px;
  background: #000 url("/assets/img/cleaning-robot/cta-network.jpg") center / cover no-repeat;
  text-align: center;
}
.cta-dark__inner { width: 100%; }
.cta-dark__title { font-size: 20px; font-weight: 700; color: var(--c-white); }
.cta-dark__buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-top: 32px;
}

@media (min-width: 768px) {
  .cta-dark__title { font-size: 28px; }
  .cta-dark__buttons { flex-direction: row; justify-content: center; margin-top: 40px; }
}

/* ---------- 18. フッター ---------- */
.site-footer {
  padding-block: 48px;
  background: var(--c-bg-footer);
  text-align: center;
}
.site-footer__inner { display: flex; flex-direction: column; align-items: center; gap: 24px; }
.site-footer__logo img { width: 200px; height: auto; }

.site-footer__links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  list-style: none;
}
.site-footer__links a {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-black);
  text-decoration: none;
}
.site-footer__links a:hover { text-decoration: underline; }
.site-footer__links .material-icons { font-size: 18px; }

.site-footer__copy { font-size: 12px; font-weight: 700; color: #555; }

@media (min-width: 768px) {
  .site-footer__logo img { width: 240px; }
  .site-footer__links { flex-direction: row; flex-wrap: wrap; justify-content: center; gap: 12px 24px; }
}