/* ============================================
   BLACK SOLUTION — Corporate Site Styles
   Color: 85% Black / 15% Gold Accent
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --black-deep: #01060c;
  --black-main: #061018;
  --black-card: #0c1218;
  --black-border: #1a2430;
  --gold: #FFD700;
  --gold-light: #FFE566;
  --gold-bright: #FFF4B8;
  --gold-dim: rgba(255, 215, 0, 0.18);
  --gold-glow: rgba(255, 215, 0, 0.48);
  --text-primary: #F0F0F0;
  --text-secondary: #999999;
  --text-muted: #666666;
  --font-serif: 'Cormorant Garamond', 'Noto Serif JP', serif;
  --font-sans: 'Inter', 'Noto Sans JP', sans-serif;
  --header-height: 80px;
  --header-logo-size: calc(var(--header-height) * 0.9);
  --header-logo-left: 100px;
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --brand-stack-width: min(38vw, 420px);
  --brand-stack-gap: 0;
  --brand-stack-gap-mobile: 0;
  --brand-stack-name-lift: calc(-71% + 8px);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: clip;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  height: auto;
  max-height: none;
  max-width: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: #000204;
  background-image:
    radial-gradient(ellipse 130% 90% at 50% 12%, rgba(255, 215, 0, 0.07) 0%, transparent 52%),
    radial-gradient(ellipse 110% 85% at 50% 88%, rgba(6, 16, 24, 0.95) 0%, #01060c 42%, #000204 100%);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: clip;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: none;
  /* iPhone Viewport / safe-area 対応開始 */
  min-height: 100vh;
  min-height: 100dvh;
  padding-bottom: 80px !important;
  padding-bottom: calc(80px + env(safe-area-inset-bottom, 0px)) !important;
  /* iPhone Viewport / safe-area 対応終了 */
  -webkit-font-smoothing: antialiased;
}

/* ★【全画面オープニング動画：再生中は本編スクロール禁止】★ */
html.is-opening-locked,
body.is-opening-locked {
  overflow: hidden;
  height: 100vh;
  height: 100dvh;
  touch-action: none;
}

/* スマホスクロール補正開始：オープニング終了後は縦スクロールを必ず解放 */
body:not(.is-opening-locked) {
  overflow-x: clip;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  height: auto !important;
  max-height: none;
  touch-action: manipulation;
}
/* スマホスクロール補正終了 */

/* ★【全画面オープニング動画システム】★
   ★【オープニング動画サイズ調整・差し替え処理】★
   差し替え動画：assets/BLACKSOLUTION_1.mp4
   表示サイズ：--opening-scale（以前の表示=0.8を100%とし、その50% → 0.4）
   フェード秒数：--opening-fade-ms */
/* オープニングロゴ中央配置開始（iPhone 100dvh・flex強制中央） */
.opening-overlay {
  --opening-fade-ms: 1200ms;
  --opening-scale: 0.4;
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: auto !important;
  bottom: auto !important;
  z-index: 9999 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 100% !important;
  width: 100vw !important;
  max-width: 100vw !important;
  /* フォールバック → Dynamic Viewport Height（バー変動に追従） */
  height: 100vh !important;
  height: 100dvh !important;
  min-height: 100vh !important;
  min-height: 100dvh !important;
  margin: 0 !important;
  margin-top: 0 !important;
  margin-bottom: 0 !important;
  padding: 0 !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  border: 0 !important;
  overflow: hidden !important;
  background: #000000 !important;
  opacity: 1;
  visibility: visible;
  transition: opacity var(--opening-fade-ms) ease, visibility var(--opening-fade-ms) ease;
  pointer-events: auto;
  box-sizing: border-box !important;
  transform: none !important;
}

.opening-overlay.is-fading {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.opening-overlay.is-done {
  display: none !important;
  pointer-events: none;
}

/* PC：画面の絶対中央（top/left 50% + translate） */
.opening-overlay__video {
  position: absolute !important;
  top: 50% !important;
  left: 50% !important;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  margin: 0 !important;
  margin-top: 0 !important;
  padding: 0 !important;
  padding-top: 0 !important;
  border: 0;
  object-fit: cover;
  object-position: center center;
  display: block !important;
  background: #000000;
  transform: translate(-50%, -50%) scale(var(--opening-scale)) !important;
  transform-origin: center center !important;
  right: auto !important;
  bottom: auto !important;
}

/* Apple端末ブラウザ向けロゴ位置上目補正開始 */
/* スマホ版ロゴ位置引き上げ＆ヒーロー余白縮小開始 */
@media (max-width: 768px) {
  .opening-overlay {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    height: 100dvh !important;
    min-height: 100vh !important;
    min-height: 100dvh !important;
    margin: 0 !important;
    margin-top: 0 !important;
    padding: 0 !important;
    padding-top: 0 !important;
  }

  .opening-overlay__video {
    /* さらに上目へ：視覚的中心まで引き上げ */
    width: calc((90vw / 0.557) * var(--opening-scale)) !important;
    max-width: 90vw !important;
    height: auto !important;
    max-height: 80dvh !important;
    margin: 0 !important;
    margin-top: 0 !important;
    padding: 0 !important;
    padding-top: 0 !important;
    object-fit: contain !important;
    object-position: center center !important;
    position: absolute !important;
    top: 40% !important;
    left: 50% !important;
    transform: translate(-50%, calc(-50% - 60px)) !important;
    transform-origin: center center !important;
  }

  /* スマホ版ヒーロー上部余白復元開始 */
  /* スマホ版ヒーロー縦幅＆下部マージン拡張開始 */
  .hero {
    min-height: 100vh !important;
    min-height: 100dvh !important;
    padding-top: 100px !important;
    padding-right: 16px !important;
    padding-bottom: 80px !important;
    padding-left: 16px !important;
    margin: 0 !important;
    margin-top: 0 !important;
    margin-bottom: 80px !important;
    box-sizing: border-box !important;
  }
  /* スマホ版ヒーロー縦幅＆下部マージン拡張終了 */
  /* スマホ版ヒーロー上部余白復元終了 */

  .hero__content {
    margin: 0 !important;
    padding: 0 0 48px !important;
    position: relative !important;
    z-index: 2 !important;
  }

  .hero-statement {
    margin: 0 auto 12px !important;
    margin-top: 0 !important;
    margin-bottom: 12px !important;
  }

  .hero-statement--contact {
    margin-bottom: 12px !important;
  }

  .hero__catchcopy {
    margin: 0 0 14px !important;
    margin-top: 0 !important;
    margin-bottom: 14px !important;
  }

  .hero__cta {
    margin: 0 0 28px !important;
    position: relative !important;
    z-index: 3 !important;
  }

  /* SCROLL 表記が CONTACT US と重ならないよう下端へ退避 */
  .hero__scroll-indicator {
    bottom: 24px !important;
    z-index: 1 !important;
    pointer-events: none !important;
  }

  /* ネットワーク背景付きロゴセクションも縦を圧縮 */
  .logo-attractor {
    height: 56vh !important;
    height: 56dvh !important;
    min-height: 280px !important;
    margin: 0 !important;
    padding: 0 !important;
  }
}

/* Safe Area 対応ブラウザでも同位置へ引き上げ */
@supports (padding: env(safe-area-inset-bottom)) {
  @media (max-width: 768px) {
    .opening-overlay__video {
      top: 40% !important;
      transform: translate(-50%, calc(-50% - 60px)) !important;
    }
  }
}
/* スマホ版ロゴ位置引き上げ＆ヒーロー余白縮小終了 */
/* Apple端末ブラウザ向けロゴ位置上目補正終了 */
/* オープニングロゴ中央配置終了 */

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

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

ul {
  list-style: none;
}

/* --- Particle Canvas Background --- */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  max-width: 100%;
  height: 100vh;
  height: 100dvh;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.8s ease;
}

#particle-canvas.is-active {
  opacity: 1;
}

/* --- Layout Wrapper --- */
/* スマホスクロール補正：縦方向は visible / auto でフッターまで到達可能に */
.page-wrapper {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
  overflow-y: visible;
  height: auto;
  max-height: none;
  min-height: 100vh;
  min-height: 100dvh;
  /* フッター最下部（プライバシーポリシー）が隠れないよう下部余白を強制 */
  padding-bottom: 80px !important;
  padding-bottom: calc(80px + env(safe-area-inset-bottom, 0px)) !important;
  -webkit-overflow-scrolling: touch;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 120px 0;
  position: relative;
}

.section-label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin-bottom: 48px;
  line-height: 1.3;
}

.section-title span {
  color: var(--gold);
}

/* --- Scroll Fade-in --- */
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-delay-1 { transition-delay: 0.15s; }
.fade-in-delay-2 { transition-delay: 0.3s; }
.fade-in-delay-3 { transition-delay: 0.45s; }

/* ============================================
   HEADER
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: background-color var(--transition), box-shadow var(--transition);
}

.header.is-scrolled {
  background-color: rgba(1, 6, 12, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255, 215, 0, 0.1);
}

.header__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.header__logo {
  position: absolute;
  left: var(--header-logo-left);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: flex-start;
  /* ★【マークと社名の黄金比バランス】gap・高さ比率を調整 */
  gap: 10px;
  height: auto;
  line-height: 0;
  flex-shrink: 1;
  min-width: 0;
  max-width: min(42%, 420px);
  z-index: 1;
}

/* ★【watermarkマーク：PC／スマホ切替】★ */
.header__logo-mark--pc {
  display: block;
  /* 主役：マーク高さ = 基準 1 */
  height: calc(var(--header-logo-size) * 0.82);
  max-height: calc(var(--header-logo-size) * 0.82);
  width: auto;
  max-width: 68px;
  object-fit: contain;
  object-position: center center;
  flex: 0 0 auto;
  filter:
    brightness(1.08)
    saturate(1.2)
    drop-shadow(0 0 4px rgba(255, 215, 0, 0.4));
}

.header__logo-mark--sp {
  display: none;
}

/* ★【hero社名ロゴ：マーク高さの約0.85倍で調和】★ */
.header__logo-name--pc {
  display: block;
  height: auto;
  width: auto;
  /* Cap Height ≒ マーク高さ × 0.85 */
  max-height: calc(var(--header-logo-size) * 0.82 * 0.85);
  max-width: min(28vw, 220px);
  object-fit: contain;
  object-position: left center;
  flex: 0 1 auto;
  min-width: 0;
  filter:
    brightness(1.1)
    saturate(1.15)
    drop-shadow(0 0 2px rgba(255, 230, 100, 0.45))
    drop-shadow(0 0 8px rgba(255, 215, 0, 0.28));
}

.header__logo-name--sp {
  display: none;
}

/* ★【PC：マーク主役＋社名0.85／ナビ余白をゆったり】★ */
@media (min-width: 769px) {
  .header {
    overflow: visible;
  }

  .header__inner {
    gap: 32px;
  }

  .header__logo {
    gap: 10px;
    max-width: min(42%, 400px);
  }

  .header__logo-mark--pc {
    height: calc(var(--header-logo-size) * 0.84);
    max-height: calc(var(--header-logo-size) * 0.84);
  }

  .header__logo-name--pc {
    width: auto;
    max-width: min(30vw, 240px);
    max-height: calc(var(--header-logo-size) * 0.84 * 0.85);
    height: auto;
    filter:
      brightness(1.12)
      contrast(1.05)
      saturate(1.15)
      drop-shadow(0 0 2px rgba(255, 244, 184, 0.5))
      drop-shadow(0 0 8px rgba(212, 175, 55, 0.3));
  }

  .header__nav {
    flex-wrap: nowrap;
    gap: clamp(22px, 2.4vw, 36px);
    padding-left: 24px;
  }
}

.header__logo:hover .header__logo-name--pc,
.header__logo:hover .header__logo-name--sp {
  opacity: 0.9;
}

.header__nav {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: nowrap;
  flex-shrink: 0;
  align-items: center;
  gap: clamp(16px, 2vw, 32px);
  margin-left: auto;
  padding-left: 12px;
}

.header__nav a {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--text-secondary);
  text-transform: uppercase;
  position: relative;
  padding: 4px 0;
  transition: color var(--transition);
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  transition: width var(--transition);
}

.header__nav a:hover {
  color: var(--gold);
}

.header__nav a:hover::after {
  width: 100%;
}

.header__menu-btn {
  display: none;
  position: relative;
  z-index: 2;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.header__menu-btn span {
  display: block;
  width: 24px;
  height: 1px;
  background-color: var(--gold);
  transition: var(--transition);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--header-height) 20px 56px;
  position: relative;
  box-sizing: border-box;
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: min(92vw, 960px);
  margin: 0 auto;
}

/* --- Hero Center English Statement (Sikumys-style) --- */
.hero-statement {
  margin: 0 auto 32px;
  text-align: center;
}

.hero-statement__title {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.1em;
  font-family: var(--font-sans);
  font-size: clamp(2.1rem, 6.8vw, 4.6rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0.01em;
  background: linear-gradient(
    90deg,
    #ffffff 0%,
    #ffffff 22%,
    #fff6cc 48%,
    #ffe566 72%,
    #ffd700 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  filter:
    drop-shadow(0 0 14px rgba(255, 255, 255, 0.12))
    drop-shadow(0 0 28px rgba(255, 215, 0, 0.22))
    drop-shadow(0 4px 24px rgba(0, 0, 0, 0.45));
}

.hero-statement__line {
  display: block;
  white-space: nowrap;
}

.hero-statement__word {
  display: inline-block;
}

.hero-statement--contact {
  margin-bottom: 24px;
}

.hero-statement--contact .hero-statement__title {
  font-size: clamp(2rem, 7vw, 4rem);
}

.hero__logo {
  width: 180px;
  margin: 0 auto 32px;
  animation: heroFloat 6s ease-in-out infinite;
}

/* --- Vertical Brand Stack (logo mark + logotype) --- */
.brand-stack {
  display: grid;
  justify-items: center;
  align-content: center;
  width: var(--brand-stack-width);
  max-width: calc(100vw - 48px);
  margin-left: auto;
  margin-right: auto;
  gap: var(--brand-stack-gap);
}

.brand-stack__item {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.brand-stack__item--mark {
  filter:
    drop-shadow(0 0 5px rgba(255, 215, 0, 0.35))
    drop-shadow(0 0 18px rgba(255, 215, 0, 0.28));
}

.brand-stack__item--name {
  margin-top: var(--brand-stack-name-lift);
  filter:
    drop-shadow(0 0 6px rgba(255, 215, 0, 0.55))
    drop-shadow(0 0 22px rgba(255, 215, 0, 0.42))
    drop-shadow(0 10px 35px rgba(0, 0, 0, 0.65));
}

.brand-stack__mark,
.brand-stack__name {
  display: block;
  width: 100%;
  height: auto;
  margin: 0;
  object-fit: contain;
  object-position: center center;
}

.brand-stack__mark {
  opacity: 0.72;
}

.brand-stack__name {
  filter: none;
}

.brand-stack--hero {
  margin: 0 auto 22px;
}

.brand-stack--contact {
  margin: 0 auto 20px;
}

.brand-stack--hero .brand-stack__item--mark {
  animation: heroMarkFloat 6s ease-in-out infinite;
}

@keyframes heroMarkFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero__brand {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 300;
  letter-spacing: 0.25em;
  color: var(--text-primary);
  margin-bottom: 8px;
  text-shadow: 0 0 60px rgba(255, 215, 0, 0.15);
}

.hero__brand-sub {
  font-family: var(--font-serif);
  font-size: clamp(0.9rem, 2vw, 1.2rem);
  font-weight: 300;
  letter-spacing: 0.6em;
  color: var(--text-muted);
  margin-bottom: 48px;
}

.hero__catchcopy {
  font-size: clamp(0.82rem, 1.8vw, 0.98rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.62);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.9;
  letter-spacing: 0.06em;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 40px;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.hero__cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  opacity: 0;
  transition: opacity var(--transition);
  z-index: -1;
}

.hero__cta:hover {
  color: var(--black-deep);
  border-color: var(--gold-light);
  box-shadow: 0 0 30px var(--gold-glow);
}

.hero__cta:hover::before {
  opacity: 1;
}

.hero__scroll-indicator {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  animation: scrollBounce 2s ease-in-out infinite;
}

.hero__scroll-indicator::after {
  content: '';
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--gold), transparent);
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================================
   VISION / MISSION
   ============================================ */
.vision-mission {
  background: linear-gradient(180deg, rgba(1, 6, 12, 0.72) 0%, rgba(6, 16, 24, 0.55) 50%, rgba(1, 6, 12, 0.72) 100%);
}

.vm-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.vm-block {
  padding: 48px;
  border: 1px solid var(--black-border);
  background: rgba(12, 18, 24, 0.55);
  position: relative;
  transition: border-color var(--transition);
}

.vm-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
}

.vm-block:hover {
  border-color: rgba(255, 215, 0, 0.3);
}

.vm-block__label {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  letter-spacing: 0.15em;
  color: var(--gold);
  margin-bottom: 24px;
}

.vm-block__text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 2.2;
  letter-spacing: 0.03em;
}

.vm-block--solo {
  max-width: 720px;
  margin: 0 auto;
}

.vision-mission--mission {
  padding-top: 80px;
}

/* ============================================
   【VISION・MISSION間ロゴアニメーション】
   ============================================ */
.logo-attractor {
  position: relative;
  width: 100%;
  max-width: 100%;
  height: 100vh;
  height: 100dvh;
  min-height: 100vh;
  min-height: 100dvh;
  background: transparent;
  overflow: hidden;
  margin: 0;
}

.logo-attractor__canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
}

.logo-attractor__logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  width: clamp(96px, 11.2vw, 168px);
  pointer-events: none;
}

.logo-attractor__logo::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 180%;
  height: 180%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.22) 0%, transparent 68%);
  z-index: -1;
  pointer-events: none;
}

.logo-attractor__logo img {
  width: 100%;
  height: auto;
  filter:
    drop-shadow(0 0 10px rgba(255, 215, 0, 0.65))
    drop-shadow(0 0 28px rgba(255, 215, 0, 0.35))
    drop-shadow(0 0 48px rgba(255, 215, 0, 0.15));
}

/* ============================================
   SERVICE
   ============================================ */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service-card {
  background: rgba(12, 18, 24, 0.72);
  border: 1px solid var(--black-border);
  padding: 48px 32px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  transition: width var(--transition);
}

.service-card:hover {
  border-color: rgba(255, 215, 0, 0.25);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.service-card:hover::after {
  width: 80%;
}

.service-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--gold-dim);
  border-radius: 50%;
  color: var(--gold);
  font-size: 1.4rem;
}

.service-card__icon-svg {
  width: 26px;
  height: 26px;
  display: block;
}

.service-card__title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.service-card__desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 2;
}

/* ============================================
   PRICE
   ============================================ */
.price {
  background: transparent;
}

/* ★【PRICE：ホームページ制作見出し】★ */
.price__service-label {
  text-align: center;
  font-size: 1rem;
  letter-spacing: 0.18em;
  color: var(--gold);
  margin: -8px 0 40px;
}

.price__initial {
  text-align: center;
  margin-bottom: 64px;
  padding: 48px;
  border: 1px solid rgba(255, 215, 0, 0.2);
  position: relative;
}

.price__initial::before,
.price__initial::after {
  content: '';
  position: absolute;
  width: 40px;
  height: 40px;
  border-color: var(--gold);
  border-style: solid;
}

.price__initial::before {
  top: -1px;
  left: -1px;
  border-width: 1px 0 0 1px;
}

.price__initial::after {
  bottom: -1px;
  right: -1px;
  border-width: 0 1px 1px 0;
}

.price__initial-label {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.price__initial-amount {
  /* ★【PRICE：初期費用／印刷物／動画の金額もゴシック体に統一】★ */
  font-family: var(--font-sans);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.05em;
  line-height: 1.2;
}

.price__initial-amount small {
  font-family: var(--font-sans);
  font-size: 0.4em;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
}

.price__initial-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 12px;
  letter-spacing: 0.05em;
}

.price__plans-label {
  text-align: center;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

/* ★【PRICE：印刷物／動画の追加カード】★ */
.price-extra-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 56px;
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
}

.price-extra-card {
  margin-bottom: 0;
  max-width: none;
  width: 100%;
  box-sizing: border-box;
}

.price__initial-amount--sm {
  font-size: clamp(2rem, 4.5vw, 2.8rem);
}

.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.price-card {
  background: rgba(12, 18, 24, 0.72);
  border: 1px solid var(--black-border);
  padding: 40px 28px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
  position: relative;
}

.price-card--featured {
  border-color: var(--gold);
  box-shadow: 0 0 40px rgba(255, 215, 0, 0.1);
}

.price-card--featured::before {
  content: 'RECOMMENDED';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--black-deep);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  padding: 4px 16px;
}

.price-card:hover {
  border-color: rgba(255, 215, 0, 0.4);
  transform: translateY(-4px);
}

.price-card__name {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 16px;
  text-align: center;
}

.price-card__amount {
  text-align: center;
  margin-bottom: 8px;
}

.price-card__amount .yen {
  /* ★【PRICE：月額数字をゴシック体に】★ */
  font-family: var(--font-sans);
  font-size: 2.8rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.price-card--featured .price-card__amount .yen {
  color: var(--gold);
}

.price-card__amount .unit {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: block;
  margin-top: 4px;
}

.price-card__tax {
  text-align: center;
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.price-card__divider {
  width: 40px;
  height: 1px;
  background: var(--gold);
  margin: 0 auto 24px;
}

.price-card__features {
  flex: 1;
  margin-bottom: 32px;
}

.price-card__features li {
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding: 10px 0;
  border-bottom: 1px solid var(--black-border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.price-card__features li::before {
  content: '—';
  color: var(--gold);
  flex-shrink: 0;
}

.price-card__btn {
  display: block;
  text-align: center;
  padding: 14px;
  border: 1px solid var(--gold-dim);
  color: var(--gold);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: all var(--transition);
}

.price-card__btn:hover {
  background: var(--gold);
  color: var(--black-deep);
  border-color: var(--gold);
}

.price-card--featured .price-card__btn {
  background: var(--gold);
  color: var(--black-deep);
  border-color: var(--gold);
}

.price-card--featured .price-card__btn:hover {
  background: var(--gold-light);
  box-shadow: 0 0 20px var(--gold-glow);
}

/* ★【スマホ限定・料金プラン選択切り替えシステム】★
   PCでは非表示。プラン増減は .price-card の追加/削除のみで対応 */
.price-tabs {
  display: none;
}

@keyframes pricePanelIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   ★ WORKS実績カルーセル（PC＋スマホモックアップ）
   ============================================ */
.works {
  overflow: hidden;
}

.works-carousel {
  position: relative;
  width: 100%;
  margin-top: 40px;
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0;
  box-sizing: border-box;
}

.works-carousel__viewport {
  position: relative;
  flex: 1 1 auto;
  width: 100%;
  overflow: hidden;
  cursor: grab;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
}

.works-carousel.is-grabbing .works-carousel__viewport,
.works-carousel.is-grabbing {
  cursor: grabbing;
}

.works-carousel.is-grabbing .works-item {
  pointer-events: none;
}

.works-carousel__track {
  display: flex;
  align-items: flex-end;
  gap: 48px;
  width: max-content;
  animation: worksCarouselScroll 45s linear infinite;
  will-change: transform;
  transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  contain: layout paint;
}

.works-carousel.is-paused .works-carousel__track {
  animation-play-state: paused;
}

@keyframes worksCarouselScroll {
  0% { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(-50%, 0, 0); }
}

.works-carousel__btn {
  /* ★【WORKS：左右矢印は全デバイス非表示】★ */
  display: none !important;
}

.works-item {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  width: 360px;
  text-decoration: none;
  color: inherit;
}

.works-item__mockup {
  position: relative;
  width: 320px;
  padding-bottom: 28px;
}

.works-item__pc {
  width: 320px;
  background: linear-gradient(180deg, #1a1f26 0%, #0c1016 100%);
  border: 2px solid rgba(255, 215, 0, 0.28);
  border-radius: 10px 10px 4px 4px;
  position: relative;
  overflow: hidden;
  box-shadow:
    0 18px 40px rgba(0, 0, 0, 0.45),
    0 0 20px rgba(255, 215, 0, 0.08);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.works-item__pc::before {
  content: '';
  display: block;
  height: 18px;
  background: linear-gradient(180deg, #2a3038 0%, #151a20 100%);
  border-bottom: 1px solid rgba(255, 215, 0, 0.15);
}

.works-item__pc-screen {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #05080c;
  overflow: hidden;
}

.works-item__pc-img,
.works-item__phone-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transform: translateZ(0);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  content-visibility: auto;
  transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.works-item__pc-stand {
  width: 64px;
  height: 8px;
  background: #1a1f26;
  border: 1px solid rgba(255, 215, 0, 0.18);
  margin: 0 auto;
  border-radius: 0 0 4px 4px;
}

.works-item__phone {
  width: 88px;
  height: 178px;
  position: absolute;
  right: -28px;
  bottom: 8px;
  background: linear-gradient(180deg, #1c222a 0%, #0a0e14 100%);
  border: 2px solid rgba(255, 215, 0, 0.35);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.5);
  z-index: 2;
}

.works-item__phone::before {
  content: '';
  position: absolute;
  top: 7px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 215, 0, 0.25);
  z-index: 2;
}

.works-item__phone-screen {
  position: absolute;
  top: 16px;
  left: 5px;
  right: 5px;
  bottom: 12px;
  border-radius: 6px;
  overflow: hidden;
  background: #05080c;
}

.works-item__label {
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  text-align: center;
  transition: color var(--transition);
}

.works-item:hover .works-item__pc,
.works-item:focus-visible .works-item__pc {
  border-color: rgba(255, 215, 0, 0.55);
  box-shadow:
    0 22px 48px rgba(0, 0, 0, 0.5),
    0 0 28px rgba(255, 215, 0, 0.16);
  transform: translateY(-4px);
}

.works-item:hover .works-item__pc-img,
.works-item:hover .works-item__phone-img,
.works-item:focus-visible .works-item__pc-img,
.works-item:focus-visible .works-item__phone-img {
  transform: translateZ(0) scale(1.04);
}

.works-item:hover .works-item__label,
.works-item:focus-visible .works-item__label {
  color: var(--gold);
}

/* ★【WORKS：ドットインジケーター】★ */
.works-carousel__dots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
}

.works-carousel__dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 1px solid rgba(255, 215, 0, 0.45);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
}

.works-carousel__dot.is-active {
  background: var(--gold);
  border-color: var(--gold);
  transform: scale(1.2);
}

.works-carousel__dot:hover,
.works-carousel__dot:focus-visible {
  border-color: var(--gold-light);
}

@media (max-width: 768px) {
  /* ★【スマホ：矢印なし／スワイプ専用／表示最大化】★ */
  .works-carousel {
    margin-top: 24px;
    padding: 0;
    gap: 0;
  }

  .works-carousel__btn {
    display: none !important;
  }

  .works-carousel__viewport {
    width: 100%;
    cursor: grab;
    mask-image: linear-gradient(to right, transparent, black 4%, black 96%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 4%, black 96%, transparent);
    touch-action: pan-y;
  }

  .works-carousel__track {
    gap: 22px;
    animation-duration: 36s;
    padding: 0 4vw 8px;
  }

  .works-item {
    width: min(88vw, 340px);
    gap: 14px;
  }

  .works-item__mockup {
    width: min(82vw, 300px);
    padding-bottom: 22px;
  }

  .works-item__pc {
    width: 100%;
    border-radius: 8px 8px 3px 3px;
  }

  .works-item__pc::before {
    height: 14px;
  }

  .works-item__phone {
    width: clamp(58px, 18vw, 78px);
    height: clamp(118px, 36vw, 158px);
    right: -14px;
    bottom: 6px;
    border-radius: 11px;
  }

  .works-item__phone::before {
    width: 20px;
    height: 3px;
    top: 5px;
  }

  .works-item__phone-screen {
    top: 12px;
    left: 4px;
    right: 4px;
    bottom: 9px;
  }

  .works-item__label {
    font-size: 0.78rem;
    max-width: min(88vw, 320px);
  }

  .works-carousel__dots {
    display: flex;
    margin-top: 20px;
    gap: 12px;
  }

  .works-carousel__dot {
    width: 9px;
    height: 9px;
  }
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
  background: transparent;
}

.contact__inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.contact__lead {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 48px;
  line-height: 2;
}

.contact__form {
  text-align: left;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  background: var(--black-card);
  border: 1px solid var(--black-border);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  transition: border-color var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 1px var(--gold-dim);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23FFD700' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  cursor: pointer;
}

.contact__submit {
  width: 100%;
  padding: 18px;
  background: transparent;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition);
  margin-top: 8px;
}

.contact__submit:hover {
  background: var(--gold);
  color: var(--black-deep);
  box-shadow: 0 0 30px var(--gold-glow);
}

.header__nav a.is-active {
  color: var(--gold);
}

.header__nav a.is-active::after {
  width: 100%;
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-page {
  min-height: calc(100vh - 160px);
  min-height: calc(100dvh - 160px);
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 32px);
  padding-bottom: 72px;
}

.contact-page__inner {
  /* ★【CONTACT：フォーム枠拡大（スマホ基準）／PCは下の min-width でさらに拡大】★ */
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
  width: 100%;
}

.contact-page__lead {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.8;
}

.contact-panel {
  background: rgba(17, 17, 17, 0.92);
  border: 1px solid rgba(255, 215, 0, 0.35);
  padding: 48px 40px;
  text-align: left;
  position: relative;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

/* ★【PC表示：CONTACT枠をさらに横幅拡大】★ */
@media (min-width: 769px) {
  .contact-page__inner {
    max-width: 1080px;
  }

  .contact__inner {
    max-width: 900px;
  }

  .contact-panel {
    padding: 56px 52px;
  }
}

.contact-panel::before,
.contact-panel::after {
  content: '';
  position: absolute;
  width: 48px;
  height: 48px;
  border-color: var(--gold);
  border-style: solid;
  pointer-events: none;
}

.contact-panel::before {
  top: -1px;
  left: -1px;
  border-width: 1px 0 0 1px;
}

.contact-panel::after {
  bottom: -1px;
  right: -1px;
  border-width: 0 1px 1px 0;
}

.form-badge {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 8px;
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  vertical-align: middle;
  text-transform: none;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
}

/* STEP VALIDATION & DYNAMIC BADGE FIX：必須バッジ初期＝グレー */
.form-badge--required {
  color: #999;
  background: #2a2a2a;
  border: 1px solid #555;
  border-radius: 2px;
}

/* 入力完了時：黄色発光 */
.form-badge--required.is-active {
  color: #0a0a0a;
  background-color: #ffdc00;
  border-color: #ffdc00;
  box-shadow: 0 0 14px rgba(255, 220, 0, 0.45);
}

.form-badge--optional {
  color: var(--text-muted);
  border: 1px solid var(--black-border);
}

.form-group.is-invalid input,
.form-group.is-invalid textarea,
.form-group.is-invalid select {
  border-color: rgba(255, 215, 0, 0.8);
  box-shadow: 0 0 0 1px rgba(255, 215, 0, 0.2);
}

.form-error {
  margin-top: 8px;
  font-size: 0.75rem;
  color: var(--gold-light);
  letter-spacing: 0.04em;
}

.form-group--checkbox {
  margin-top: 8px;
  margin-bottom: 32px;
}

/* ============================================
   STEP VALIDATION & DYNAMIC BADGE FIX
   テキスト左・バッジ右／5項目完了 ↔ 送信ボタン連動
   ============================================ */
.form-privacy-toggle {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.form-privacy-toggle__text {
  display: inline;
  margin: 0;
  cursor: pointer;
  text-transform: none;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.6;
  font-weight: 400;
}

/* プライバシーバッジ（テキスト右側） */
#badge-privacy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  min-width: 4.5em;
  margin-left: 0;
  padding: 4px 10px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.4;
  cursor: pointer;
  user-select: none;
}

.form-checkbox__link {
  color: var(--gold);
  border-bottom: 1px solid rgba(255, 215, 0, 0.4);
  transition: color var(--transition), border-color var(--transition);
}

.form-checkbox__link:hover {
  color: var(--gold-light);
  border-color: var(--gold-light);
}

/* 送信ボタン：未完了は半透明・クリック不可 */
.contact__submit--gold {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #e6b800 0%, var(--gold) 45%, var(--gold-light) 100%);
  border-color: var(--gold-light);
  color: var(--black-deep);
  font-weight: 600;
  box-shadow: 0 8px 28px rgba(255, 215, 0, 0.25);
  opacity: 0.5;
  pointer-events: none;
  transition: opacity var(--transition), box-shadow var(--transition), background var(--transition), filter var(--transition);
}

/* 5項目すべて完了：送信許可＋黄色い発光 */
.contact__submit--gold.is-ready,
.contact__form.is-form-ready .contact__submit--gold {
  opacity: 1;
  pointer-events: auto;
  background: linear-gradient(135deg, #ffdc00 0%, var(--gold) 40%, var(--gold-light) 100%);
  border-color: #ffe566;
  box-shadow:
    0 0 24px rgba(255, 220, 0, 0.55),
    0 8px 32px rgba(255, 215, 0, 0.35);
  filter: saturate(1.15);
}

.contact__submit--gold::before {
  content: '';
  position: absolute;
  top: 0;
  left: -120%;
  width: 80%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transform: skewX(-20deg);
  transition: left 0.7s ease;
  z-index: 1;
  pointer-events: none;
}

.contact__submit--gold.is-ready:hover,
.contact__form.is-form-ready .contact__submit--gold:hover {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 50%, #f0d78c 100%);
  color: var(--black-deep);
  border-color: #f0d78c;
  box-shadow: 0 0 40px rgba(255, 215, 0, 0.7);
}

.contact__submit--gold.is-ready:hover::before,
.contact__form.is-form-ready .contact__submit--gold:hover::before {
  left: 140%;
}

.form-success {
  display: none;
  margin-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.form-success.is-visible {
  display: block;
}

.form-error--submit {
  display: none;
  margin-top: 16px;
  text-align: center;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: #ff8a8a;
}

.form-error--submit.is-visible {
  display: block;
}

@media (max-width: 768px) {
  .contact-panel {
    padding: 32px 20px;
  }

  .contact-page {
    padding-top: calc(var(--header-height) + 24px);
  }
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 48px 0 80px !important;
  padding-bottom: 80px !important;
  padding-bottom: calc(80px + env(safe-area-inset-bottom, 0px)) !important;
  border-top: 1px solid var(--black-border);
  text-align: center;
}

.footer__logo img {
  height: 36px;
  margin: 0 auto 20px;
  opacity: 0.7;
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px 20px;
  margin: 0 0 18px;
}

.footer__link {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition), text-shadow var(--transition);
}

.footer__link:hover,
.footer__link:focus-visible,
.footer__link.is-active {
  color: var(--gold);
  text-shadow: 0 0 12px var(--gold-glow);
}

.footer__copy {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

/* ============================================
   PRIVACY POLICY
   ============================================ */
.privacy-page {
  padding-top: calc(var(--header-height) + 48px);
  padding-bottom: 80px;
}

.privacy-page__inner {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

.privacy-page__lead {
  margin: 0 auto 40px;
  max-width: 36em;
  font-size: 0.92rem;
  line-height: 1.9;
  color: var(--text-secondary);
}

.privacy-panel {
  position: relative;
  text-align: left;
  padding: 40px 36px;
  background: rgba(12, 18, 24, 0.72);
  border: 1px solid rgba(255, 215, 0, 0.16);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.privacy-panel::before,
.privacy-panel::after {
  content: '';
  position: absolute;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 215, 0, 0.45);
  pointer-events: none;
}

.privacy-panel::before {
  top: 10px;
  left: 10px;
  border-right: none;
  border-bottom: none;
}

.privacy-panel::after {
  right: 10px;
  bottom: 10px;
  border-left: none;
  border-top: none;
}

.privacy-block + .privacy-block {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 215, 0, 0.1);
}

.privacy-block__title {
  margin-bottom: 14px;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.privacy-block__text {
  font-size: 0.88rem;
  line-height: 1.95;
  color: var(--text-secondary);
}

.privacy-block__list {
  margin: 14px 0 0;
  padding-left: 1.2em;
  font-size: 0.88rem;
  line-height: 1.95;
  color: var(--text-secondary);
}

.privacy-block__list li + li {
  margin-top: 6px;
}

.privacy-contact {
  margin-top: 18px;
  padding: 18px 20px;
  border: 1px solid rgba(255, 215, 0, 0.14);
  background: rgba(1, 6, 12, 0.45);
  font-size: 0.88rem;
  line-height: 1.9;
  color: var(--text-secondary);
}

.privacy-contact__name {
  margin-bottom: 4px;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  letter-spacing: 0.14em;
  color: var(--text-primary);
}

.privacy-contact a {
  color: var(--gold);
  text-decoration: none;
  transition: text-shadow var(--transition);
}

.privacy-contact a:hover,
.privacy-contact a:focus-visible {
  text-shadow: 0 0 12px var(--gold-glow);
}

.privacy-updated {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 215, 0, 0.1);
  font-size: 0.78rem;
  line-height: 1.8;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.privacy-br {
  display: inline;
}

@media (max-width: 768px) {
  .privacy-page {
    padding-top: calc(var(--header-height) + 28px);
    padding-bottom: 56px;
  }

  .privacy-page__lead {
    margin-bottom: 28px;
    font-size: 0.85rem;
  }

  .privacy-page__lead .privacy-br {
    display: none;
  }

  .privacy-panel {
    padding: 28px 18px;
  }

  .privacy-block__title {
    font-size: 0.94rem;
  }

  .privacy-block__text,
  .privacy-block__list,
  .privacy-contact {
    font-size: 0.84rem;
  }

  .footer__link {
    font-size: 0.68rem;
    letter-spacing: 0.08em;
  }

  .footer__copy {
    font-size: 0.64rem;
    letter-spacing: 0.06em;
  }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-height: 820px) and (min-width: 769px) {
  :root {
    --brand-stack-width: min(34vw, 380px);
    --brand-stack-name-lift: calc(-71% + 6px);
  }

  .brand-stack--hero {
    margin-bottom: 16px;
  }

  .hero__catchcopy {
    margin-bottom: 20px;
    line-height: 1.65;
  }

  .hero {
    padding-bottom: 44px;
  }

  .hero__scroll-indicator {
    bottom: 18px;
  }
}

@media (max-width: 768px) and (max-height: 700px) {
  :root {
    --brand-stack-width: min(72vw, 300px);
    --brand-stack-name-lift: calc(-71% + 4px);
  }

  .brand-stack--hero,
  .brand-stack--contact {
    margin-bottom: 12px;
  }

  .hero__catchcopy {
    margin-bottom: 14px;
    font-size: 0.8rem;
  }

  .hero__scroll-indicator {
    display: none;
  }
}

@media (max-width: 1024px) {
  .service-grid,
  .price-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .price-extra-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
  }

  .vm-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .page-wrapper {
    overflow-x: clip;
  }

  .header {
    width: 100%;
    max-width: 100%;
    /* ★【スマホ用ハンバーガーメニュー開閉システム】★
       overflow:hidden だと fixed メニューがヘッダー外で切り取られるため visible 必須 */
    overflow: visible;
  }

  .header__inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 100%;
    height: var(--header-height);
    padding: 0 14px;
    box-sizing: border-box;
    gap: 8px;
    overflow: visible;
  }

  /* ★【スマホ限定・ヘッダーロゴ（マーク1：社名0.85・黄金比）】★ */
  .header__logo {
    position: static;
    transform: none;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: flex-start;
    gap: 5px;
    flex: 1 1 auto;
    min-width: 0;
    max-width: calc(100% - 52px);
    height: 100%;
    z-index: 1;
  }

  .header__logo-mark--pc,
  .header__logo-name--pc {
    display: none;
  }

  .header__logo-mark--sp {
    display: block;
    /* 主役：マーク高さ = 1 */
    height: calc(var(--header-height) * 0.32);
    max-height: calc(var(--header-height) * 0.32);
    width: auto;
    max-width: min(12vw, 44px);
    flex: 0 0 auto;
    object-fit: contain;
    object-position: center center;
    filter:
      brightness(1.08)
      saturate(1.2)
      drop-shadow(0 0 3px rgba(255, 215, 0, 0.4));
  }

  .header__logo-name--sp {
    display: block;
    /* 社名高さ ≒ マーク × 0.85 */
    height: calc(var(--header-height) * 0.32 * 0.85);
    max-height: calc(var(--header-height) * 0.32 * 0.85);
    width: auto;
    max-width: min(42vw, 140px);
    flex: 0 1 auto;
    min-width: 0;
    object-fit: contain;
    object-position: left center;
    filter:
      brightness(1.1)
      saturate(1.15)
      drop-shadow(0 0 2px rgba(255, 230, 100, 0.55))
      drop-shadow(0 0 5px rgba(255, 215, 0, 0.28));
  }

  /* ★【スマホ用ハンバーガーメニュー開閉システム】★ */
  .header__nav {
    display: flex;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    width: 100%;
    max-width: 100%;
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 12px 0 28px;
    background:
      linear-gradient(180deg, rgba(1, 6, 12, 0.98) 0%, rgba(10, 10, 10, 0.96) 100%);
    border-bottom: 1px solid rgba(255, 215, 0, 0.28);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.55);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-12px);
    transition:
      opacity 0.35s ease,
      transform 0.35s ease,
      visibility 0.35s ease;
  }

  .header__nav.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .header__nav a {
    width: 100%;
    max-width: 100%;
    padding: 16px 24px;
    text-align: center;
    color: var(--text-primary);
    font-size: 0.85rem;
    letter-spacing: 0.22em;
    border-bottom: 1px solid rgba(255, 215, 0, 0.08);
    transition: color 0.3s ease, background-color 0.3s ease;
  }

  .header__nav a:last-child {
    border-bottom: none;
  }

  .header__nav a:hover,
  .header__nav a:active,
  .header__nav a.is-active {
    color: var(--gold);
    background: rgba(255, 215, 0, 0.06);
  }

  .header__menu-btn {
    display: flex;
    flex: 0 0 40px;
    flex-shrink: 0;
    margin-left: 0;
    width: 40px;
    height: 40px;
    padding: 8px;
    align-items: center;
    justify-content: center;
    gap: 6px;
    z-index: 1002;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
  }

  .header__menu-btn span {
    width: 20px;
    transition: transform 0.3s ease, opacity 0.3s ease, background-color 0.3s ease;
  }

  .header__menu-btn.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .header__menu-btn.is-open span:nth-child(2) {
    opacity: 0;
  }

  .header__menu-btn.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .section {
    padding: 80px 0;
    overflow-x: clip;
    max-width: 100%;
  }

  .vm-block {
    padding: 32px 24px;
  }

  .vision-mission--mission {
    padding-top: 56px;
  }

  .logo-attractor {
    /* 高さは「スマホ版ロゴ位置引き上げ＆ヒーロー余白縮小」で上書き */
    height: 56vh;
    height: 56dvh;
    min-height: 280px;
  }

  .logo-attractor__logo {
    width: clamp(80px, 22.4vw, 128px);
  }

  :root {
    --brand-stack-width: min(78vw, 340px);
    --brand-stack-gap: var(--brand-stack-gap-mobile);
    --brand-stack-name-lift: calc(-71% + 6px);
  }

  .hero {
    /* 縦幅・下部余白は「スマホ版ヒーロー縦幅＆下部マージン拡張」で強制指定 */
    min-height: 100dvh;
    padding-top: 100px;
    padding-right: 16px;
    padding-bottom: 80px;
    padding-left: 16px;
    margin-bottom: 80px;
    overflow-x: clip;
    max-width: 100%;
  }

  .hero::before {
    width: min(100%, 480px);
  }

  .hero__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  .hero-statement {
    margin-bottom: 20px;
  }

  .hero-statement__title {
    gap: 0.08em;
    font-size: clamp(1.65rem, 7.5vw, 2.6rem);
    letter-spacing: 0.01em;
    line-height: 1.12;
  }

  .hero-statement__line {
    white-space: normal;
  }

  .hero-statement--contact {
    margin-bottom: 18px;
  }

  .hero__catchcopy {
    font-size: 0.85rem;
    margin-bottom: 20px;
    line-height: 1.65;
  }

  .hero__cta {
    padding: 12px 32px;
    font-size: 0.75rem;
  }

  .hero__scroll-indicator {
    bottom: 16px;
    font-size: 0.6rem;
  }

  .hero__scroll-indicator::after {
    height: 28px;
  }

  .container {
    max-width: 100%;
    padding: 0 16px;
  }

  /* ★【スマホ限定・料金プラン選択切り替えシステム】★ */
  .price-tabs {
    display: flex;
    gap: 8px;
    margin: 0 0 24px;
    padding: 4px;
    border: 1px solid rgba(255, 215, 0, 0.28);
    background: rgba(10, 10, 10, 0.72);
  }

  .price-tabs[hidden] {
    display: none !important;
  }

  .price-tabs__btn {
    flex: 1 1 0;
    min-width: 0;
    padding: 12px 6px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition:
      color 0.35s ease,
      background-color 0.35s ease,
      border-color 0.35s ease,
      box-shadow 0.35s ease;
  }

  .price-tabs__btn:hover {
    color: var(--gold-light);
    border-color: rgba(255, 215, 0, 0.35);
  }

  .price-tabs__btn.is-active {
    color: var(--black-deep);
    background: linear-gradient(135deg, var(--gold), var(--gold-light));
    border-color: var(--gold);
    box-shadow: 0 0 18px rgba(255, 215, 0, 0.28);
  }

  .price-grid {
    max-width: none;
    margin: 0;
    gap: 0;
  }

  .price-card {
    display: none;
    transform: none;
  }

  .price-card:hover {
    transform: none;
  }

  .price-card.is-price-active {
    display: flex;
    animation: pricePanelIn 0.4s ease;
  }

  .works {
    overflow-x: clip;
    max-width: 100%;
  }

  .contact-page {
    padding-top: calc(var(--header-height) + 20px);
    padding-bottom: 56px;
  }

  .contact-page__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .contact-page__lead {
    font-size: 0.85rem;
    margin-bottom: 28px;
    line-height: 1.65;
  }

  .section-title {
    margin-bottom: 32px;
  }
}