/* ============================================================
   未病コンディショニングサポート LP
   Design unified with reference: xiqwfrsf.gensparkspace.com
   ============================================================ */

/* ============================================================
   CSS VARIABLES  ← 基準LPに完全統一
   ============================================================ */
:root {
  /* ---- モノトーン軸 ---- */
  --black:      #0a0a0a;
  --gray-900:   #111111;
  --gray-800:   #1c1c1c;
  --gray-700:   #2c2c2c;
  --gray-600:   #3d3d3d;
  --gray-500:   #555555;
  --gray-400:   #888888;
  --gray-300:   #aaaaaa;
  --gray-200:   #cccccc;
  --gray-100:   #e5e5e5;
  --gray-50:    #f4f4f4;
  --white:      #ffffff;

  /* ---- ゴールド ---- */
  --gold:       #b8a87a;
  --gold-lt:    #d4c49a;

  /* ---- LINEボタン（基準LP準拠：ゴールドイエロー）---- */
  --line-green: #e6c200;
  --line-dark:  #c9a800;
  --line-text:  #1a1a1a;

  /* ---- フォント ---- */
  --font-serif: 'Noto Serif JP', 'Georgia', serif;
  --font-sans:  'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-en:    'Cormorant Garamond', serif;

  /* ---- その他 ---- */
  --radius-s:   6px;
  --radius-m:   12px;
  --radius-l:   20px;
  --tr:         0.28s ease;
  --sh:         0 4px 28px rgba(0,0,0,0.10);
  --sh-hov:     0 10px 44px rgba(0,0,0,0.18);
  --header-h:   62px;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--gray-50);
  color: var(--gray-800);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  font-size: 17px;
}

img  { max-width: 100%; height: auto; display: block; }
a    { text-decoration: none; color: inherit; }
ul   { list-style: none; }

/* sp-br: モバイルのみ改行 */
.sp-br { display: none; }
@media (max-width: 600px) { .sp-br { display: inline; } }

/* ============================================================
   HEADER — 完全再構築
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: #050505;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  gap: 12px;
  box-sizing: border-box;
  width: 100%;
}

/* ---- ホームボタン（左） ---- */
.home-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 100px;
  height: 40px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.18);
  background: transparent;
  color: #f2f2f2;
  font-size: 14px;
  font-family: var(--font-sans);
  font-weight: 400;
  letter-spacing: 0.04em;
  white-space: nowrap;
  flex-shrink: 0;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s;
}

.home-button svg {
  flex-shrink: 0;
  color: #f2f2f2;
}

.home-button:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.35);
}

/* ---- LINEボタン（右） ---- */
.line-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 20px;
  border-radius: 999px;
  background: #e0c200;
  color: #111111;
  font-size: 14px;
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: 0.03em;
  white-space: nowrap;
  width: auto;
  flex-shrink: 0;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  box-shadow: 0 2px 10px rgba(224,194,0,0.30);
}

.line-button svg {
  flex-shrink: 0;
  color: #111111;
}

.line-button:hover {
  background: #c9ae00;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(224,194,0,0.45);
}

/* フッターで使うbtn-homeは別定義として維持 */
.site-footer .btn-home {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gray-300);
  border: 1px solid var(--gray-600);
  padding: 12px 36px;
  border-radius: 24px;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  margin: 0 auto 28px;
  transition: var(--tr);
  background: transparent;
  text-decoration: none;
}

.site-footer .btn-home:hover {
  background: var(--gray-700);
  color: var(--white);
}

.line-icon {
  display: flex;
  align-items: center;
}

/* ============================================================
   HERO  ← 基準LP準拠（#0a0a0a背景、ゴールドライン装飾）
   ============================================================ */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--black);
  padding: calc(var(--header-h) + 60px) 24px 90px;
  text-align: center;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 縦ライン装飾（基準LP準拠） */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, transparent, rgba(184,168,122,0.06), transparent) center/1px 100% no-repeat,
    linear-gradient(to bottom, transparent, rgba(184,168,122,0.06), transparent) calc(50% - 120px)/1px 100% no-repeat,
    linear-gradient(to bottom, transparent, rgba(184,168,122,0.06), transparent) calc(50% + 120px)/1px 100% no-repeat;
  pointer-events: none;
}

/* 下部ゴールドライン（基準LP準拠） */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
}

.hero-label-en {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.55em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 22px;
}

.hero-label-ja {
  font-family: var(--font-serif);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.45);
  margin-bottom: 28px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.55rem, 5.5vw, 2.8rem);
  font-weight: 300;
  line-height: 1.55;
  color: var(--white);
  margin-bottom: 24px;
  letter-spacing: 0.12em;
}

/* ゴールド強調テキスト（基準LP：グラデーション準拠） */
.hero-title-gold {
  background: linear-gradient(135deg, var(--gold-lt), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(0.88rem, 2vw, 1rem);
  color: var(--gray-300);
  letter-spacing: 0.1em;
  line-height: 2.1;
  margin-bottom: 36px;
}

/* ディバイダー（基準LP準拠） */
.hero-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
}

.divider-line {
  display: block;
  width: 56px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
}

.divider-line:last-child {
  background: linear-gradient(90deg, var(--gold), transparent);
}

/* hero-divider の中央ドットは非表示（基準LPはiアイコン、今回はdot要素）*/
.divider-dot {
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0.7;
}

.hero-note {
  margin-top: 28px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--gray-500);
}

/* CTA直前の訴求テキスト */
.hero-cta-lead {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.06em;
  text-align: center;
  margin-bottom: 18px;
}

/* ---- ヒーローCTAボタン（基準LP：btn-hero-line 準拠）---- */
.btn-line,
.btn-line-hero {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--line-green);
  color: var(--line-text);
  padding: 14px 36px;
  border-radius: 40px;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  box-shadow: 0 4px 20px rgba(230,194,0,0.32);
  transition: var(--tr);
  cursor: pointer;
  border: none;
}

.btn-line:hover,
.btn-line-hero:hover {
  background: var(--line-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(230,194,0,0.45);
}

/* ============================================================
   SECTIONS  共通
   ============================================================ */
.sec {
  padding: 88px 24px;
}

.sec-light {
  background: var(--gray-50);
}

.sec-inner {
  max-width: 760px;
  margin: 0 auto;
}

/* ---- セクションラベル（基準LP：ps-num / ps-tag 準拠）---- */
.sec-label-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.sec-num {
  font-family: var(--font-en);
  font-size: 2.4rem;
  font-weight: 300;
  color: var(--gray-200);
  line-height: 1;
}

.sec-label-badge {
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.4em;
  color: var(--gold);
  text-transform: uppercase;
  border: 1px solid var(--gold);
  padding: 4px 14px;
}

/* ---- セクションタイトル ---- */
.sec-title {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 400;
  line-height: 1.65;
  color: var(--gray-900);
  margin-bottom: 8px;
  letter-spacing: 0.08em;
}

.sec-sub {
  font-size: 0.88rem;
  color: var(--gray-400);
  letter-spacing: 0.08em;
  margin-bottom: 36px;
}

/* ============================================================
   SECTION 01: SYMPTOM LIST
   ============================================================ */
.symptom-list {
  display: flex;
  flex-direction: column;
  margin-bottom: 40px;
  border-top: 1px solid var(--gray-100);
}

.symptom-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 4px;
  border-bottom: 1px solid var(--gray-100);
  font-size: 0.97rem;
  color: var(--gray-700);
  letter-spacing: 0.04em;
  line-height: 1.6;
  transition: background var(--tr);
}

.symptom-item:hover {
  background: rgba(184,168,122,0.06);
}

.symptom-check {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gray-900);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--line-green);
  font-size: 0.82rem;
}

.symptom-item p {
  font-size: 0.97rem;
  color: var(--gray-700);
  line-height: 1.6;
  letter-spacing: 0.04em;
}

/* 共感ノート */
.empathy-note {
  margin-left: 44px;
  padding: 20px 24px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  box-shadow: var(--sh);
}

.empathy-note p {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 2.0;
  letter-spacing: 0.06em;
  word-break: keep-all;
  overflow-wrap: break-word;
}

/* ============================================================
   SECTION 02: FEATURE CARDS
   ============================================================ */
.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-l);
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--sh);
  transition: var(--tr);
}

/* 上部アクセントライン（基準LP：pp-card::before 準拠） */
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gray-700), var(--gray-400));
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--sh-hov);
}

.feature-card--wide {
  grid-column: 1 / -1;
}

.card-icon {
  width: 52px;
  height: 52px;
  background: var(--gray-900);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.0rem;
  font-weight: 400;
  color: var(--gray-900);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}

.card-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-en);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  color: var(--gold);
  background: transparent;
  padding: 0;
  margin-bottom: 10px;
}

/* カードタグの丸ドット */
.card-tag svg {
  color: var(--gray-300);
}

.card-desc {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.85;
  letter-spacing: 0.03em;
}

/* ============================================================
   SECTION 03: PHILOSOPHY  ← 基準LP：fullbody-card 準拠
   ============================================================ */
.philosophy-block {
  background: var(--black);
  border-radius: var(--radius-l);
  overflow: hidden;
  padding: 52px 48px;
  text-align: center;
  position: relative;
  box-shadow: 0 8px 48px rgba(0,0,0,0.22);
}

/* 上部ゴールドライン */
.philosophy-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

/* 底部グラデーション光彩 */
.philosophy-block::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 110%, rgba(184,168,122,0.07), transparent);
  pointer-events: none;
}

.phi-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 300;
  color: var(--white);
  letter-spacing: 0.1em;
  line-height: 1.4;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.phi-sub {
  font-family: var(--font-serif);
  font-size: 0.65em;
  letter-spacing: 0.15em;
  color: var(--gold-lt);
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.phi-desc {
  font-size: 0.92rem;
  color: var(--gray-400);
  line-height: 1.9;
  letter-spacing: 0.07em;
  max-width: 520px;
  margin: 0 auto 28px;
  position: relative;
  z-index: 1;
}

.phi-divider {
  width: 40px;
  height: 1px;
  background: var(--gold);
  margin: 0 auto 20px;
  position: relative;
  z-index: 1;
}

.phi-label-en {
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.4em;
  color: var(--gray-400);
  text-transform: uppercase;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.phi-label-text {
  font-family: var(--font-serif);
  font-size: 1.0rem;
  color: var(--white);
  font-weight: 300;
  letter-spacing: 0.1em;
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

/* ============================================================
   SECTION 04: CAUTION  ← 基準LP：caution-card 準拠
   ============================================================ */
.caution-block {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-l);
  padding: 36px 40px;
  display: flex;
  align-items: flex-start;
  gap: 24px;
  box-shadow: var(--sh);
  position: relative;
  overflow: hidden;
}

/* 上部グレーライン（基準LP準拠） */
.caution-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gray-400), var(--gray-200));
}

.caution-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--gray-900);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}

.caution-title {
  font-family: var(--font-serif);
  font-size: 1.0rem;
  font-weight: 400;
  color: var(--gray-900);
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

.caution-content {
  flex: 1;
  min-width: 0;
}

.caution-content p {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.85;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.caution-content p:last-child {
  margin-bottom: 0;
}

/* ============================================================
   SECTION 05: REASON BLOCK
   ============================================================ */
.reason-block {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.reason-text {
  font-size: 0.93rem;
  color: var(--gray-500);
  line-height: 2.0;
  letter-spacing: 0.04em;
  padding-left: 18px;
  border-left: 2px solid var(--gray-200);
  transition: border-color var(--tr), color var(--tr);
}

.reason-text:hover {
  border-left-color: var(--gold);
  color: var(--gray-700);
}

/* ============================================================
   SECTION 06: EXISTING CLIENTS  ← 基準LP fullbody-card 系
   ============================================================ */
.existing-block {
  background: var(--black);
  border-radius: var(--radius-l);
  overflow: hidden;
  padding: 52px 48px;
  text-align: center;
  position: relative;
  box-shadow: 0 8px 48px rgba(0,0,0,0.22);
}

.existing-block::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 110%, rgba(184,168,122,0.07), transparent);
  pointer-events: none;
}

.existing-block::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.existing-title {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2.8vw, 1.4rem);
  font-weight: 400;
  color: var(--white);
  letter-spacing: 0.08em;
  line-height: 1.65;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.existing-divider-top {
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 0 auto 28px;
  position: relative;
  z-index: 1;
}

.existing-lead {
  font-family: var(--font-serif);
  font-size: 0.97rem;
  color: var(--white);
  line-height: 2.1;
  letter-spacing: 0.06em;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.existing-em {
  color: var(--gold-lt);
  font-weight: 500;
}

.existing-desc {
  font-size: 0.9rem;
  color: var(--gray-400);
  line-height: 1.9;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.existing-desc--light {
  color: var(--gray-500);
}

.existing-list {
  display: flex;
  flex-direction: column;
  margin: 0 auto 24px;
  max-width: 340px;
  text-align: left;
  border-top: 1px solid var(--gray-700);
  position: relative;
  z-index: 1;
}

.existing-list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 4px;
  border-bottom: 1px solid var(--gray-700);
}

.existing-dot {
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
}

.existing-list-item p {
  font-size: 0.9rem;
  color: var(--gray-300);
  letter-spacing: 0.05em;
}

.existing-divider-mid {
  width: 40px;
  height: 1px;
  background: var(--gray-700);
  margin: 24px auto;
  position: relative;
  z-index: 1;
}

.existing-cta-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
  position: relative;
  z-index: 1;
}

.existing-cta-label {
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  color: var(--gray-400);
  text-transform: uppercase;
}

/* 既存顧客向けCTAボタン */
.btn-existing-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--line-green);
  color: var(--line-text);
  padding: 14px 32px;
  border-radius: 40px;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-align: center;
  white-space: normal;
  line-height: 1.5;
  box-shadow: 0 4px 18px rgba(230,194,0,0.28);
  transition: var(--tr);
  border: none;
  cursor: pointer;
}

.btn-existing-cta:hover {
  background: var(--line-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(230,194,0,0.42);
}

/* ============================================================
   CONTACT CARD（ラストビューCTAエリア）← 基準LP：line-cta-section 準拠
   ============================================================ */
.contact-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-l);
  overflow: hidden;
  padding: 56px 56px;
  text-align: center;
  position: relative;
  box-shadow: var(--sh);
}

/* 上部ゴールドラベル風アクセント */
.contact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

/* セクションラベルバッジ（contact-card内） */
.contact-card .sec-label-wrap {
  justify-content: center;
}

.contact-title {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.5vw, 1.9rem);
  font-weight: 400;
  color: var(--gray-900);
  letter-spacing: 0.07em;
  line-height: 1.6;
  margin-bottom: 14px;
}

.contact-desc {
  font-size: 0.93rem;
  color: var(--gray-500);
  line-height: 1.95;
  letter-spacing: 0.05em;
  margin-bottom: 32px;
}

/* コンタクトエリア内CTAボタン */
.btn-line-contact {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--line-green);
  color: var(--line-text);
  padding: 15px 36px;
  border-radius: 40px;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  box-shadow: 0 4px 22px rgba(230,194,0,0.28);
  transition: var(--tr);
  border: none;
  cursor: pointer;
}

.btn-line-contact:hover {
  background: var(--line-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(230,194,0,0.42);
}

/* ============================================================
   FOOTER  ← 基準LP：site-footer / footer-inner 準拠
   ============================================================ */
.site-footer {
  background: var(--black);
  padding: 56px 24px 100px;
  text-align: center;
  border-top: none;
}

.site-footer .footer-inner-wrap {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

/* ---- Topへ戻るボタン — 画像仕様に完全一致 ---- */
.footer-top-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 180px;
  height: 44px;
  padding: 0 20px;
  background: #0b0b0b;
  color: #eaeaea;
  border: 1px solid rgba(90, 90, 90, 0.8);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.08em;
  font-family: var(--font-sans);
  text-decoration: none;
  margin: 40px auto 24px;
  transition: var(--tr);
  box-sizing: border-box;
}

.footer-top-btn svg {
  color: #eaeaea;
  flex-shrink: 0;
}

.footer-top-btn:hover {
  background: #1a1a1a;
  border-color: rgba(120, 120, 120, 0.9);
  color: var(--white);
}

.footer-copy {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--gray-700);
}

/* ============================================================
   FLOATING LINE BUTTON  ← 基準LP準拠（ゴールドイエロー + pulse）
   ============================================================ */
.float-line-btn {
  position: fixed;
  bottom: 32px;
  right: 28px;
  z-index: 200;
  background: var(--line-green);
  color: var(--line-text);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 68px;
  height: 68px;
  border-radius: 50%;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  gap: 2px;
  box-shadow: 0 6px 24px rgba(230,194,0,0.45);
  transition: var(--tr);
  animation: pulse 3s ease-in-out infinite;
}

.float-line-btn svg {
  width: 28px;
  height: 28px;
}

.float-line-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 10px 36px rgba(230,194,0,0.60);
}

.float-line-text {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 6px 24px rgba(230,194,0,0.45); }
  50%       { box-shadow: 0 6px 40px rgba(230,194,0,0.65); }
}

/* ============================================================
   SCROLL FADE-IN  ← 基準LP準拠
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   RESPONSIVE — Tablet
   ============================================================ */
@media (max-width: 900px) {
  .sec {
    padding: 72px 20px;
  }
  .contact-card {
    padding: 44px 36px;
  }
  .philosophy-block,
  .existing-block {
    padding: 44px 36px;
  }
}

/* ============================================================
   RESPONSIVE — Mobile
   ============================================================ */
@media (max-width: 600px) {
  /* ---- Header ---- */
  .header-inner {
    padding: 10px 14px;
    gap: 10px;
  }

  .home-button {
    min-width: 0;
    height: 38px;
    padding: 0 14px;
    font-size: 13px;
    gap: 6px;
  }

  .home-button svg {
    width: 13px;
    height: 13px;
  }

  .line-button {
    height: 38px;
    padding: 0 16px;
    font-size: 13px;
    gap: 6px;
  }

  .line-button svg {
    width: 14px;
    height: 14px;
  }

  /* ---- Hero ---- */
  .hero {
    padding: 84px 28px 72px;
  }

  /* hero-inner：テキスト横幅を制限して左右余白を確保 */
  .hero-inner {
    max-width: 90%;
    padding: 0;
    margin-left: auto;
    margin-right: auto;
  }

  /* ① 英字ラベル */
  .hero-label-en {
    font-size: 0.62rem;
    letter-spacing: 0.38em;
    margin-bottom: 12px;
  }

  /* ② 和文ラベル */
  .hero-label-ja {
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    margin-bottom: 22px;
  }

  /* ③ メインキャッチ：意味区切り改行・分断禁止 */
  .hero-title {
    font-size: clamp(1.3rem, 5.8vw, 1.65rem);
    line-height: 1.85;
    letter-spacing: 0.07em;
    margin-bottom: 22px;
    word-break: keep-all;
    overflow-wrap: break-word;
  }

  /* 「新しい健康習慣。」を途中で分断しない */
  .hero-nowrap {
    display: inline-block;
    white-space: nowrap;
  }

  /* ④ サブキャッチ */
  .hero-sub {
    font-size: 0.84rem;
    line-height: 1.95;
    letter-spacing: 0.07em;
    margin-bottom: 30px;
    word-break: keep-all;
    overflow-wrap: break-word;
  }

  /* ⑤ CTA直前の一文 */
  .hero-cta-lead {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.85);
    letter-spacing: 0.04em;
    line-height: 1.8;
    margin-bottom: 18px;
    word-break: keep-all;
    overflow-wrap: break-word;
  }

  /* ⑥ 注意書き */
  .hero-note {
    font-size: 0.72rem;
    margin-top: 22px;
    letter-spacing: 0.05em;
    line-height: 1.8;
  }

  /* ディバイダー余白 */
  .hero-divider {
    margin-bottom: 30px;
  }

  /* ---- Sections ---- */
  .sec {
    padding: 60px 16px;
  }

  .sec-title {
    font-size: clamp(1.15rem, 5vw, 1.45rem);
    line-height: 1.55;
    word-break: keep-all;
    overflow-wrap: break-word;
  }

  /* 「？」が行末に落ちないよう、この見出しのみ word-break を上書き */
  .sec-title--nowrap {
    word-break: normal;
    overflow-wrap: break-word;
  }

  .ps-num { font-size: 1.8rem; }

  /* ---- Cards ---- */
  .card-grid {
    grid-template-columns: 1fr;
  }

  .feature-card--wide {
    grid-column: 1;
  }

  .philosophy-block,
  .existing-block,
  .contact-card {
    padding: 36px 24px;
  }

  /* ---- Caution ---- */
  .caution-block {
    flex-direction: column;
    gap: 12px;
    padding: 28px 22px;
  }

  .caution-block::before {
    height: 3px;
  }

  /* ---- Empathy note ---- */
  .empathy-note {
    margin-left: 0;
    padding: 24px 22px;
    text-align: center;
  }

  .empathy-note p {
    font-size: 0.88rem;
    line-height: 1.85;
    letter-spacing: 0.05em;
    max-width: 88%;
    margin-left: auto;
    margin-right: auto;
    word-break: keep-all;
    overflow-wrap: break-word;
  }

  /* ---- Contact ---- */
  .contact-title {
    font-size: clamp(1.1rem, 5vw, 1.45rem);
    line-height: 1.55;
    word-break: keep-all;
    overflow-wrap: break-word;
  }

  .contact-desc {
    font-size: 0.86rem;
    line-height: 1.85;
    word-break: keep-all;
  }

  /* ---- Buttons ---- */
  .btn-line,
  .btn-line-hero {
    font-size: 0.85rem;
    padding: 13px 24px;
  }

  .btn-line-contact {
    font-size: 0.88rem;
    padding: 13px 24px;
  }

  /* ---- Float btn ---- */
  .float-line-btn {
    bottom: 20px;
    right: 16px;
    width: 62px;
    height: 62px;
  }

  .float-line-btn svg {
    width: 24px;
    height: 24px;
  }

  /* ---- Footer ---- */
  .site-footer {
    padding: 0 20px 80px;
  }

  .footer-top-btn {
    width: 180px;
    height: 44px;
    font-size: 14px;
    margin: 40px auto 24px;
  }
}