@charset "UTF-8";
/* ============================================================
   JVC Powered by Litheli — 法人向けLP
   ベース: 白＋濃紺 ／ アクセント: Litheliグリーン (#00A870系)
   モバイルファースト（BP: 768px / 1024px）
   ============================================================ */
/* ---------- カスタムプロパティ ---------- */
:root {
  --color-navy: #0d2244; /* 濃紺（コーポレート） */
  --color-navy-dark: #081833;
  --color-navy-light: #1d3a66;
  --color-green: #00a870; /* Litheliグリーン */
  --color-green-dark: #008a5c;
  --color-green-pale: #e6f6f0;
  --color-yellow: #f5b800; /* 安全色（現場セクション用） */
  --color-yellow-pale: #fef7e0;
  --color-red: #d64545;
  --color-text: #1a2333;
  --color-text-sub: #5a6577;
  --color-bg: #ffffff;
  --color-bg-gray: #f4f6f9;
  --color-border: #dde3ec;
  --font-body: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 16px rgba(13, 34, 68, 0.08);
  --shadow-lg: 0 8px 32px rgba(13, 34, 68, 0.14);
  --header-h: 60px;
}

/* ---------- リセット ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  /* モバイル追従CTAに隠れないよう余白確保 */
}

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

a {
  color: inherit;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

input, select, textarea {
  font-family: inherit;
  font-size: 16px;
}

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

.sp-only {
  display: inline;
}

/* ---------- レイアウト共通 ---------- */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-narrow {
  max-width: 760px;
}

.section {
  padding: 56px 0;
}

.section-eyebrow {
  color: var(--color-green);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-title {
  font-size: 26px;
  font-weight: 900;
  line-height: 1.4;
  color: var(--color-navy);
  margin-bottom: 20px;
}

.section-title .accent {
  display: inline-block;
}

.section-lead {
  color: var(--color-text-sub);
  margin-bottom: 28px;
  font-size: 16px;
}

.accent {
  color: var(--color-green);
}

.accent-strong {
  color: var(--color-green-dark);
}

/* ---------- 画像プレースホルダ ---------- */
.img-placeholder {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: repeating-linear-gradient(45deg, #e8edf4, #e8edf4 12px, #f1f5fa 12px, #f1f5fa 24px);
  border: 2px dashed #b8c4d6;
  border-radius: var(--radius-sm);
  color: #6b7a92;
  font-size: 13px;
  font-weight: 500;
  padding: 16px;
  min-height: 160px;
}

/* 実写真の差し込み: プレースホルダ内に <img class="photo-fill"> を置くと
   読み込み成功時に写真がラベルを覆う（失敗時は onerror で除去されラベル表示のまま） */
.img-placeholder .photo-fill {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.img-placeholder.has-photo {
  border: none;
  background: none;
  font-size: 0; /* 読み込み成功後はラベルテキストを非表示（contain表示で脇から見えるのを防ぐ） */
  color: transparent;
}

/* 切り抜き位置の調整: 画像下部を見せる（空調服のファン部など） */
.img-placeholder .photo-fill.photo-pos-bottom {
  object-position: center bottom;
}

/* ロゴ等、切り抜き不可の画像は contain で全体表示
   （.img-placeholder .photo-fill の cover 指定より詳細度を上げる） */
.img-placeholder .photo-fill.photo-fill--contain {
  object-fit: contain;
  padding: 10px;
}

.img-fv {
  min-height: 260px;
}

/* FV写真: 合成2段カットのため切り抜かず全体表示 */
.img-fv.has-photo {
  min-height: 0;
  aspect-ratio: 3/2;
  border-radius: var(--radius);
  overflow: hidden;
}

.img-fv.has-photo .photo-fill.photo-fill--contain {
  padding: 0;
  /* 画像に焼き込まれた白縁・角丸を隠すため1.1倍ズーム（親のoverflow:hiddenでクリップ） */
  object-fit: cover;
  transform: scale(1.1);
}

/* FV: メイン画像下の3枚サムネイル */
.fv-thumbs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 10px;
}

.fv-thumbs img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.fv-thumbs--two {
  grid-template-columns: repeat(2, 1fr);
}

.fv-thumb {
  aspect-ratio: 3/2;
  border-radius: var(--radius-sm);
  overflow: hidden; /* ズームした画像を各サムネイル内でクリップ */
}

.fv-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 白縁が焼き込まれた画像のみズームで縁をカット */
.fv-thumb--zoom img {
  transform: scale(1.1);
}

.img-card {
  min-height: 130px;
  margin-bottom: 14px;
}

.img-card.has-photo {
  min-height: 195px;
}

.img-reason {
  min-height: 120px;
  margin-top: 14px;
}

.img-reason.has-photo {
  min-height: 340px;
}

.img-product {
  min-height: 180px;
}

.img-saving {
  min-height: 110px;
  margin-bottom: 10px;
}

.img-usecase {
  min-height: 200px;
  margin: 20px 0;
}

.img-usecase.has-photo {
  min-height: 400px;
}

/* 用途別: 写真2枚の左右分割（モバイルは縦積み） */
.usecase-photo-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 20px 0;
}

.usecase-photo-split .img-usecase {
  margin: 0;
  min-height: 390px;
}

.img-plan {
  min-height: 180px;
  margin: 14px 0;
}

/* 図解画像は縦横比を保って全体表示（文字を切らない） */
.img-plan.has-photo {
  min-height: 0;
  aspect-ratio: 2/1;
}

.img-plan--wide.has-photo {
  aspect-ratio: 1400/788;
}

.img-customize {
  min-height: 140px;
  margin-bottom: 14px;
}

.img-customize.has-photo {
  min-height: 380px;
}

/* ---------- 写真右下の「画像はイメージです」注記 ---------- */
.photo-note {
  position: relative;
}

.photo-note::after {
  content: "画像はイメージです";
  position: absolute;
  right: 6px;
  bottom: 4px;
  z-index: 2;
  font-size: 8px; /* サイズ調整はここ */
  line-height: 1;
  color: #fff;
  opacity: 0.85;
  text-shadow: 0 0 3px rgba(0, 0, 0, 0.7);
  pointer-events: none;
}

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  text-decoration: none;
  text-align: center;
  border: none;
  border-radius: 999px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--color-green);
  color: #fff;
  box-shadow: 0 4px 14px rgba(0, 168, 112, 0.35);
}

.btn-primary:hover {
  background: var(--color-green-dark);
}

.btn-outline {
  background: #fff;
  color: var(--color-navy);
  border: 2px solid var(--color-navy);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 17px;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
}

.btn-block {
  width: 100%;
}

/* ---------- スペックプレースホルダ ---------- */
.spec-placeholder {
  background: #fff3cd;
  border-radius: 3px;
  padding: 0 3px;
  font-weight: 700;
}

/* ============================================================
   ① FV
   ============================================================ */
.fv {
  background: linear-gradient(160deg, var(--color-navy-dark) 0%, var(--color-navy) 55%, var(--color-navy-light) 100%);
  color: #fff;
  padding: 48px 0 56px;
  overflow: hidden;
}

.fv-inner {
  display: flex;
  flex-direction: column;
  gap: 32px;
  position: relative;
}

.fv-eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #7fd4b5;
  margin-bottom: 14px;
}

.fv-title {
  font-size: 50px;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 16px;
}

.fv-title-mid {
  font-size: 24px;
  margin-top: 20px;
  display: inline-block;
}

.fv-title-sm {
  font-size: 18px;
  font-weight: 400;
  margin-top: 20px;
  display: inline-block;
}

.fv-sub {
  font-size: 14px;
  color: #c8d4e6;
  margin-bottom: 24px;
  letter-spacing: 0;
}

.trust-badges {
  display: flex;
  gap: 10px;
  margin-bottom: 28px;
}

.trust-badge {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-sm);
  padding: 10px 6px;
  text-align: center;
}

.badge-mark {
  font-size: 14px;
  font-weight: 900;
  color: #fff;
  white-space: nowrap;
}

.badge-label {
  font-size: 12px;
  line-height: 1.4;
  color: #b9c7dc;
  letter-spacing: 0;
}

@media (max-width: 575px) {
  .badge-label {
    font-size: 10px;
  }
}
/* FVのCTA: モバイルで2つとも縦に視認できるコンパクト構成 */
.fv-cta-group {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: stretch;
}

.fv-cta-sub {
  color: #9fe8cd;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.fv-cta-sub:hover {
  color: #fff;
}

/* ============================================================
   ② 課題提起
   ============================================================ */
.problems {
  background: var(--color-bg-gray);
}

.problem-grid {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.problem-card {
  display: block;
  background: #fff;
  border-radius: var(--radius);
  padding: 20px;
  text-decoration: none;
  box-shadow: var(--shadow);
  border-top: 4px solid var(--color-navy);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.problem-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.problem-construction {
  border-top-color: var(--color-yellow);
}

.problem-bcp {
  border-top-color: var(--color-navy);
}

.problem-event {
  border-top-color: var(--color-green);
}

.problem-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text-sub);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 2px 12px;
  margin-bottom: 10px;
}

.problem-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.6;
  margin-bottom: 12px;
  letter-spacing: 0;
}

.problem-link {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-green);
}

/* ============================================================
   ③ 選ばれる4つの理由
   ============================================================ */
.reason-grid {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.reason-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 20px;
}

.reason-num {
  display: inline-block;
  font-size: 13px;
  font-weight: 900;
  color: var(--color-green);
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.reason-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 10px;
}

.reason-text {
  font-size: 16px;
  color: var(--color-text-sub);
}

.reason-text small {
  font-size: 12px;
}

/* 理由04: 保証・サポートの4アイコングリッド */
.support-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 12px;
  margin-top: 18px;
  text-align: center;
}

.support-icon {
  height: 64px;
  width: auto;
  margin: 0 auto 8px;
}

.support-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.5;
}

.support-name sup {
  font-size: 10px;
  font-weight: 400;
}

.support-desc {
  font-size: 11px;
  color: var(--color-text-sub);
  line-height: 1.6;
  margin-top: 4px;
}

.support-notes {
  margin-top: 16px;
  font-size: 11px;
  color: var(--color-text-sub);
  line-height: 1.7;
  border-top: 1px solid var(--color-border);
  padding-top: 12px;
}

/* ============================================================
   ④ 2機種比較
   ============================================================ */
.compare {
  background: var(--color-bg-gray);
}

.compare-visual {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}

.compare-product {
  flex: 1;
  text-align: center;
}

.compare-product .img-placeholder.has-photo {
  background: #fff; /* 白背景の製品カットをカード状に見せる */
  border-radius: var(--radius-sm);
}

.product-name {
  font-size: 20px;
  font-weight: 900;
  color: var(--color-navy);
  margin-top: 10px;
}

.product-role {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  border-radius: 999px;
  padding: 3px 14px;
  margin-top: 6px;
}

.role-230 {
  background: var(--color-green-pale);
  color: var(--color-green-dark);
}

.role-410 {
  background: #e3eaf6;
  color: var(--color-navy);
}

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.compare-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  background: #fff;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow);
  font-size: 16px;
}

.compare-table th, .compare-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

.compare-table thead th {
  background: var(--color-navy);
  color: #fff;
  font-size: 18px;
  text-align: center;
}

.compare-table thead th:first-child {
  background: var(--color-navy-dark);
}

.compare-table thead .col-230 {
  border-bottom: 3px solid var(--color-green);
}

.compare-table thead .col-410 {
  border-bottom: 3px solid #5b7fb8;
}

.compare-table tbody th {
  background: var(--color-bg-gray);
  font-weight: 700;
  white-space: nowrap;
  width: 130px;
}

.compare-table tbody td {
  text-align: center;
}

/* 「動かせないもの」注意ボックス */
.caution-box {
  margin-top: 20px;
  background: var(--color-yellow-pale);
  border: 2px solid var(--color-yellow);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  font-size: 14px;
}

.caution-title {
  font-weight: 900;
  color: #8a6400;
  margin-bottom: 6px;
}

.compare-guide {
  margin-top: 28px;
  text-align: center;
  font-size: 17px;
  font-weight: 500;
  line-height: 2;
}

/* ============================================================
   ④b 着脱式モバイルバッテリー BH-U4
   ============================================================ */
.bhu4-trio {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 28px;
}

.bhu4-trio img {
  display: block;
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.bhu4-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 40px;
}

.bhu4-feature {
  display: flex;
  align-items: center;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px;
}

.bhu4-feature-img {
  flex: 0 0 120px;
  width: 120px;
  height: 120px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.bhu4-feature-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.bhu4-feature-text h3 {
  font-size: 16px;
  font-weight: 900;
  color: var(--color-navy);
  margin-bottom: 6px;
}

.bhu4-feature-text h3 sup {
  font-size: 10px;
  font-weight: 400;
}

.bhu4-feature-text p {
  font-size: 15px;
  color: var(--color-text-sub);
}

.u4-block {
  background: var(--color-bg-gray);
  border-radius: var(--radius);
  padding: 28px 20px;
}

.u4-title {
  font-size: 20px;
  font-weight: 900;
  color: var(--color-navy);
  text-align: center;
  line-height: 1.5;
  margin-bottom: 14px;
}

.u4-desc {
  font-size: 16px;
  color: var(--color-text-sub);
  max-width: 760px;
  margin: 0 auto 20px;
}

.u4-diagram {
  margin: 0 0 20px;
}

.u4-diagram img {
  width: 100%;
  border-radius: var(--radius-sm);
  background: #fff;
}

.u4-devices {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px 12px;
}

.u4-devices li {
  text-align: center;
}

.u4-devices img {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
}

.u4-devices span {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-navy);
}

.bhu4-note {
  margin-top: 18px;
  font-size: 12px;
  color: var(--color-text-sub);
}

/* ============================================================
   ⑤ 燃料費・CO2削減の試算
   ============================================================ */
.saving-flow {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: stretch;
  margin-bottom: 20px;
}

.saving-step {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  flex: 1;
}

.saving-result {
  border: 2px solid var(--color-green);
  background: var(--color-green-pale);
}

.saving-label {
  font-weight: 900;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.saving-value {
  font-size: 14px;
  color: var(--color-text-sub);
}

.saving-arrow {
  text-align: center;
  font-size: 24px;
  color: var(--color-green);
  transform: rotate(90deg);
  line-height: 1;
}

.disclaimer {
  font-size: 12px;
  color: var(--color-text-sub);
  background: var(--color-bg-gray);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  line-height: 1.7;
}

/* ============================================================
   ⑥ 用途別シーン
   ============================================================ */
.bhu4 {
  background: var(--color-bg-gray);
}

/* タブナビ（JS有効時のみ表示） */
.tab-nav {
  display: none;
}

.js .tab-nav {
  display: flex;
  gap: 6px;
  margin-bottom: 24px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 4px;
}

.tab-btn {
  flex: 1;
  white-space: nowrap;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 700;
  background: #fff;
  color: var(--color-text-sub);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: background 0.15s, color 0.15s;
}

.tab-btn.is-active {
  background: var(--color-navy);
  color: #fff;
  border-color: var(--color-navy);
}

/* パネル: JSオフでは全て表示（プログレッシブエンハンスメント） */
.usecase-panel {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px 20px;
  border: 1px solid var(--color-border);
  margin-bottom: 24px;
}

.js .usecase-panel {
  display: none;
  margin-bottom: 0;
}

.js .usecase-panel.is-active {
  display: block;
}

.usecase-head {
  margin-bottom: 8px;
}

.usecase-badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  border-radius: 999px;
  padding: 4px 16px;
  margin-bottom: 12px;
}

.badge-construction {
  background: var(--color-yellow);
  color: #4a3800;
}

.badge-bcp {
  background: var(--color-navy);
  color: #fff;
}

.badge-event {
  background: var(--color-green);
  color: #fff;
}

.usecase-copy {
  font-size: 18px;
  font-weight: 900;
  color: var(--color-navy);
  line-height: 1.5;
  letter-spacing: 0;
}

/* 現場セクションのみ安全色の差し色 */
.usecase-construction {
  border-left: 6px solid var(--color-yellow);
}

.usecase-bcp {
  border-left: 6px solid var(--color-navy);
}

.usecase-event {
  border-left: 6px solid var(--color-green);
}

.scene-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 16px;
  margin: 8px 0 20px;
}

.scene-table th, .scene-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}

.scene-table thead th {
  background: var(--color-bg-gray);
  font-size: 18px;
}

.scene-table td:last-child {
  white-space: nowrap;
}

.model-chip {
  display: inline-block;
  font-size: 12px;
  font-weight: 900;
  border-radius: 4px;
  padding: 2px 8px;
  margin-right: 4px;
}

.chip-230 {
  background: var(--color-green-pale);
  color: var(--color-green-dark);
}

.chip-410 {
  background: #e3eaf6;
  color: var(--color-navy);
}

.motive-box {
  background: var(--color-bg-gray);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  margin-bottom: 20px;
  margin-top: 15px;
}

.motive-title {
  font-size: 16px;
  font-weight: 900;
  color: var(--color-navy);
  margin-bottom: 10px;
}

.motive-list li {
  position: relative;
  padding-left: 20px;
  font-size: 16px;
  margin-bottom: 8px;
}

.motive-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-green);
  font-weight: 900;
}

.motive-list small, .model-plan-text small {
  color: var(--color-text-sub);
}

.motive-text {
  font-size: 15px;
}

.model-plan {
  border: 2px solid var(--color-green);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  background: #fff;
}

.model-plan-title {
  font-size: 18px;
  font-weight: 900;
  color: var(--color-green-dark);
  margin-bottom: 6px;
  letter-spacing: 0;
}

.model-plan-text {
  font-size: 14px;
}

.plan-list li {
  font-size: 14px;
  margin-bottom: 8px;
}

/* ============================================================
   ⑦ 台数別価格構造
   ============================================================ */
.pricing-tiers {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}

.tier-card {
  position: relative;
  background: #fff;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
}

.tier-mid {
  border-color: var(--color-navy-light);
}

.tier-top {
  border-color: var(--color-green);
  background: var(--color-green-pale);
}

.tier-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-green);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  border-radius: 999px;
  padding: 3px 14px;
  white-space: nowrap;
}

.tier-qty {
  font-size: 28px;
  font-weight: 900;
  color: var(--color-navy);
}

.tier-top .tier-qty {
  color: var(--color-green-dark);
}

.tier-label {
  font-size: 14px;
  font-weight: 700;
  margin: 2px 0 6px;
}

.tier-note {
  font-size: 13px;
  color: var(--color-text-sub);
}

.pricing-proof {
  text-align: center;
  font-size: 15px;
  margin-bottom: 24px;
  letter-spacing: 0;
}

.pricing-cta {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: stretch;
  max-width: 480px;
  margin: 0 auto;
}

.pricing-cta .btn-outline {
  padding: 13px 24px;
  font-size: 15px;
}

/* ============================================================
   ⑧ 導入フロー
   ============================================================ */
.flow-steps {
  display: flex;
  flex-direction: column;
  gap: 14px;
  counter-reset: flow;
}

.flow-step {
  position: relative;
  background: #fff;
  border-radius: var(--radius);
  padding: 20px 20px 20px 64px;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
}

.flow-num {
  position: absolute;
  left: 18px;
  top: 20px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-green);
  color: #fff;
  font-weight: 900;
  border-radius: 50%;
  font-size: 15px;
}

.flow-title {
  font-size: 16px;
  font-weight: 900;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.flow-text {
  font-size: 13px;
  color: var(--color-text-sub);
  letter-spacing: 0;
}

.flow-note {
  margin-top: 20px;
  font-size: 13px;
  background: #fff;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

/* ============================================================
   ⑨ カスタマイズ対応
   ============================================================ */
.customize-grid {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.customize-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
}

.customize-title {
  font-size: 16px;
  font-weight: 900;
  color: var(--color-navy);
  margin-bottom: 8px;
}

.customize-text {
  font-size: 14px;
  color: var(--color-text-sub);
}

.customize-note {
  margin-top: 18px;
  font-size: 13px;
  color: var(--color-text-sub);
  text-align: center;
}

/* ============================================================
   ⑩ FAQ（details/summary によるアコーディオン）
   ============================================================ */
.faq {
  background: var(--color-bg-gray);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  background: #fff;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.faq-q {
  position: relative;
  list-style: none;
  cursor: pointer;
  font-weight: 700;
  font-size: 15px;
  padding: 18px 48px 18px 48px;
  color: var(--color-navy);
}

.faq-q::-webkit-details-marker {
  display: none;
}

.faq-q::before {
  content: "Q";
  position: absolute;
  left: 16px;
  top: 16px;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-navy);
  color: #fff;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 900;
}

.faq-q::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: 400;
  color: var(--color-green);
  transition: transform 0.2s;
}

.faq-item[open] .faq-q::after {
  content: "−";
}

.faq-a {
  padding: 0 20px 18px 48px;
  font-size: 14px;
  color: var(--color-text-sub);
}

/* ============================================================
   ⑪ クロージング：見積フォーム
   ============================================================ */
.closing {
  background: linear-gradient(160deg, var(--color-navy-dark) 0%, var(--color-navy) 100%);
  color: #fff;
  padding-bottom: 72px;
  position: relative;
}

.section-eyebrow-light {
  color: #7fd4b5;
}

.section-title-light {
  color: #fff;
}

.closing-lead {
  color: #c8d4e6;
  margin-bottom: 28px;
}

.closing .formmailer-embed {
  position: relative;
}

.closing .formmailer-embed::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 3.2rem;
  background-color: var(--color-navy-dark);
  top: 0;
  left: 0;
}

.closing .formmailer-embed::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 3.5rem;
  background-color: var(--color-navy);
  bottom: 0;
  left: 0;
}

.estimate-form {
  background: #fff;
  color: var(--color-text);
  border-radius: var(--radius);
  padding: 28px 20px;
  box-shadow: var(--shadow-lg);
}

.form-lead {
  font-size: 13px;
  color: var(--color-text-sub);
  line-height: 1.9;
  margin-bottom: 28px;
}

.form-lead-em {
  color: var(--color-red);
}

.form-row {
  margin-bottom: 20px;
}

.form-note {
  font-size: 12px;
  color: var(--color-text-sub);
  margin-top: 4px;
}

.form-sublabel {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin: 12px 0 4px;
}

/* 姓名・フリガナの2分割入力 */
.form-pair {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.pair-label {
  font-size: 13px;
}

.form-input--half {
  width: 150px;
  flex: none;
}

/* 電話番号・郵便番号の分割入力 */
.form-tel, .form-zip {
  display: flex;
  align-items: center;
  gap: 6px;
}

.form-input--tel {
  width: 90px;
  flex: none;
  text-align: center;
}

.form-input--zip3 {
  width: 76px;
  flex: none;
  text-align: center;
}

.form-input--zip4 {
  width: 90px;
  flex: none;
  text-align: center;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 6px;
}

.required-mark, .optional-mark {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  border-radius: 3px;
  padding: 1px 8px;
  margin-left: 6px;
  vertical-align: 1px;
}

.required-mark {
  background: var(--color-red);
  color: #fff;
}

.optional-mark {
  background: var(--color-border);
  color: var(--color-text-sub);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  background: #fff;
  transition: border-color 0.15s;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-green);
  box-shadow: 0 0 0 3px rgba(0, 168, 112, 0.15);
}

.form-input.is-invalid, .form-select.is-invalid {
  border-color: var(--color-red);
}

.form-error {
  color: var(--color-red);
  font-size: 12px;
  font-weight: 700;
  margin-top: 4px;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235a6577' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}

.form-submit {
  margin-top: 26px;
}

/* 送信成功メッセージ */
.form-success {
  background: #fff;
  color: var(--color-text);
  border-radius: var(--radius);
  padding: 48px 24px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.success-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-green);
  color: #fff;
  font-size: 28px;
  border-radius: 50%;
}

.success-title {
  font-size: 20px;
  font-weight: 900;
  color: var(--color-navy);
  margin-bottom: 10px;
}

.success-text {
  font-size: 14px;
  color: var(--color-text-sub);
}

.closing-contact {
  margin-top: 32px;
  text-align: center;
}

.contact-label {
  font-size: 14px;
  color: #c8d4e6;
  margin-bottom: 8px;
}

.contact-tel {
  display: inline-block;
  font-size: 26px;
  font-weight: 900;
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.03em;
}

.contact-hours {
  font-size: 12px;
  color: #93a5c1;
  margin: 6px 0 20px;
}

.contact-download {
  color: #9fe8cd;
  font-size: 14px;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.contact-attn {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  font-size: 12px;
  font-weight: 300;
  display: flex;
  justify-content: center;
  width: 100%;
}

footer {
  margin-top: 0 !important;
}

/* ============================================================
   モバイル追従CTA
   ============================================================ */
.sticky-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  display: flex;
  gap: 10px;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(6px);
  border-top: 1px solid var(--color-border);
}

.sticky-tel {
  flex: 0 0 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-navy);
  color: #fff;
  font-size: 20px;
  border-radius: 999px;
  text-decoration: none;
}

.sticky-btn {
  flex: 1;
  padding: 14px 10px;
  font-size: 15px;
}

/* ============================================================
   タブレット以上（768px〜）
   ============================================================ */
@media (min-width: 768px) {
  body {
    padding-bottom: 0;
  }
  .sp-only {
    display: none;
  }
  .section {
    padding: 80px 0;
  }
  .section-title {
    font-size: 34px;
  }
  .sticky-cta {
    display: none;
  }
  .header-tel {
    display: inline-block;
  }
  /* FV */
  .fv {
    padding: 72px 0 80px;
  }
  .fv-inner {
    flex-direction: row;
    align-items: center;
  }
  .fv-copy {
    flex: 1.1;
  }
  .fv-visual {
    flex: 1;
  }
  .fv-title {
    font-size: 26px;
  }
  .fv-title-mid {
    font-size: 20px;
  }
  .fv-title-sm {
    font-size: 18px;
    font-weight: 400;
  }
  .fv-sub {
    font-size: 15px;
    letter-spacing: 0;
  }
  .fv-cta-group {
    flex-direction: row;
    align-items: center;
    gap: 24px;
  }
  .img-fv {
    min-height: 360px;
  }
  .trust-badges {
    max-width: 480px;
  }
  /* ② 課題提起: 3カラム */
  .problem-grid {
    flex-direction: row;
  }
  .problem-card {
    flex: 1;
  }
  /* ③ 理由: 2×2 */
  .reason-grid {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .reason-card {
    flex: 0 0 calc(50% - 9px);
  }
  /* ④b BH-U4: 3枚ギャラリー横並び・特徴2×2・対応家電5列 */
  .bhu4-trio {
    grid-template-columns: repeat(3, 1fr);
  }
  .bhu4-features {
    grid-template-columns: repeat(2, 1fr);
  }
  .u4-devices {
    grid-template-columns: repeat(5, 1fr);
  }
  .u4-block {
    padding: 36px 40px;
  }
  .u4-desc {
    text-align: center;
  }
  /* ⑤ 試算: 横並び */
  .saving-flow {
    flex-direction: row;
    align-items: stretch;
  }
  /* ⑥ 用途別: 写真を左右分割 */
  .usecase-photo-split {
    grid-template-columns: 1fr 1fr;
  }
  .saving-arrow {
    transform: none;
    align-self: center;
  }
  /* ⑦ 価格: 横並び */
  .pricing-tiers {
    flex-direction: row;
  }
  .tier-card {
    flex: 1;
  }
  .pricing-cta {
    flex-direction: row;
    justify-content: center;
    max-width: none;
  }
  .pricing-cta .btn {
    min-width: 280px;
  }
  /* ⑧ フロー: 横並び */
  .flow-steps {
    flex-direction: row;
  }
  .flow-step {
    flex: 1;
    padding: 56px 18px 20px;
    text-align: center;
  }
  .flow-num {
    left: 50%;
    transform: translateX(-50%);
    top: 14px;
  }
  /* ⑨ カスタマイズ: 3カラム */
  .customize-grid {
    flex-direction: row;
  }
  .customize-card {
    flex: 1;
  }
  /* フォーム */
  .estimate-form {
    padding: 40px 48px;
  }
}
/* ============================================================
   デスクトップ（1024px〜）
   ============================================================ */
@media (min-width: 1024px) {
  .fv-title {
    font-size: 50px;
    letter-spacing: 0;
  }
  .fv-title-mid {
    font-size: 26px;
  }
  .fv-title-sm {
    font-size: 17px;
    font-weight: 400;
  }
  .usecase-panel {
    padding: 40px;
  }
  .compare-visual {
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 36px;
  }
}
/* ---------- モーション配慮 ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    transition: none !important;
  }
}
@media (max-width: 575px) {
  .bhu4-feature {
    flex-direction: column;
  }
  .fv-title {
    font-size: 24px;
  }
  .fv-title-mid {
    font-size: 18px;
  }
  .fv-title-sm {
    font-size: 16px;
    font-weight: 400;
  }
}
/* ============================================================
   表の横スクロール合図（.compare-table / .scene-table 共通）
   JS が .table-scroll を .table-scroll-hint でラップし、バッジを挿入する
   ============================================================ */
.table-scroll-hint {
  position: relative;
}

.table-scroll-hint::before,
.table-scroll-hint::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 32px;
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.table-scroll-hint::before {
  left: 0;
  background: linear-gradient(to right, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0));
}

.table-scroll-hint::after {
  right: 0;
  background: linear-gradient(to left, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0));
}

.table-scroll-hint.can-scroll-left::before {
  opacity: 1;
}

.table-scroll-hint.can-scroll-right::after {
  opacity: 1;
}

.scroll-hint-badge {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-green);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 8px 14px;
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(0, 168, 112, 0.4);
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, -50%) translateY(6px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  white-space: nowrap;
}

.scroll-hint-badge svg {
  width: 16px;
  height: 16px;
  display: block;
}

.scroll-hint-badge .hand {
  animation: swipe-hint 1.4s ease-in-out infinite;
}

.table-scroll-hint.can-scroll-right .scroll-hint-badge {
  opacity: 1;
  transform: translate(-50%, -50%) translateY(0);
}

.table-scroll-hint.is-scrolled .scroll-hint-badge {
  opacity: 0;
  transform: translate(-50%, -50%) translateY(6px);
}

@keyframes swipe-hint {
  0%, 100% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(-5px);
  }
}
/* タブレット以上（横スクロールしない幅）では非表示。
   compare-table=min-width:560px / scene-table=480px のため 768px 以上は不要 */
@media (min-width: 768px) {
  .table-scroll-hint::before,
  .table-scroll-hint::after,
  .scroll-hint-badge {
    display: none;
  }
}
@media (prefers-reduced-motion: reduce) {
  .scroll-hint-badge .hand {
    animation: none;
  }
}
#usecases .tab-nav {
  display: none;
}

#usecases .usecase-panel {
  display: block;
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .closing .formmailer-embed::after {
    display: none;
  }
  .closing .formmailer-embed::before {
    display: none;
  }
}