/* ============================================
   株式会社シズオカ録音企画 — Corporate Site CSS
   Design Philosophy: European Corporate,
   Minimal Whitespace, Editorial Clarity
   ============================================ */

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

:root {
  --color-bg: #FFFFFF;
  --color-bg-warm: #FAFAF8;
  --color-bg-section: #F5F4F2;
  --color-text: #1E1E1E;
  --color-text-light: #555555;
  --color-text-muted: #888888;
  --color-border: #E4E4E0;
  --color-border-dark: #CCCCCC;
  --color-accent: #1E1E1E;
  --font-serif: 'Noto Serif JP', 'Yu Mincho', '游明朝', serif;
  --font-sans: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-display: 'Cormorant Garamond', 'Great Vibes', cursive, serif;
  --fs-body: clamp(0.95rem, 0.9rem + 0.25vw, 1.05rem);
  --lh-body: 1.9;
  --section-gap: clamp(72px, 8vw, 120px);
  --container-max: 1200px;
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

/* --- UTILITY --- */
.pc-only { display: inline; }
@media (max-width: 768px) {
  .pc-only { display: none; }
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.4s ease, border-color 0.4s ease;
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0 clamp(24px, 4vw, 80px);
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0;
}

.site-header:not(.scrolled) {
  padding-top: 16px;
}

/* --- LOGO --- */
.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  position: relative;
}

.logo-img {
  height: 38px;
  width: auto;
  display: block;
  transition: opacity 0.4s ease;
}


/* 未スクロール時（FV上）ロゴ拡大 */
.site-header:not(.scrolled) .logo-img {
  height: 56px;
}

/* 未スクロール時：ライト版を表示、ダーク版を非表示 */
.site-header:not(.scrolled) .logo-img-light {
  opacity: 1;
}
.site-header:not(.scrolled) .logo-img-dark {
  display: none;
}

/* PCのFV表示時のみ、指定ロゴへ差し替え */
.logo-img-fv-pc {
  display: none;
}

@media (min-width: 769px) {
  .site-header:not(.scrolled) .logo-img-light {
    display: none;
  }

  .site-header:not(.scrolled) .logo-img-fv-pc {
    display: block;
    height: 84px;
    width: auto;
    opacity: 1;
  }

  .site-header.scrolled .logo-img-fv-pc {
    display: none;
  }
}

/* スクロール後：ダーク版を表示、ライト版を非表示 */
.site-header.scrolled .logo-img-light {
  display: none;
}
.site-header.scrolled .logo-img-dark {
  display: block;
  opacity: 1;
}

/* --- NAV --- */
.global-nav {
  flex: 0 0 auto;
  display: flex;
  justify-content: flex-end;
  margin-left: auto;
  margin-right: clamp(16px, 2vw, 32px);
}

.nav-list {
  display: flex;
  gap: clamp(16px, 2.5vw, 36px);
  list-style: none;
}

.nav-list a {
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.88);
  transition: color 0.3s ease;
  position: relative;
  font-family: var(--font-display);
  font-style: italic;
}

.site-header.scrolled .nav-list a {
  color: var(--color-text);
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width 0.3s var(--ease-out);
}

.nav-list a:hover::after {
  width: 100%;
}

/* --- HEADER CTA --- */
.header-cta {
  flex-shrink: 0;
}

.btn-header-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #FFFFFF;
  border: 1.5px solid rgba(255,255,255,0.65);
  padding: 9px 18px;
  border-radius: 1px;
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  transition: background 0.3s, color 0.3s, border-color 0.4s, transform 0.2s;
  white-space: nowrap;
}

.btn-header-line:hover {
  background: rgba(255,255,255,0.15);
  transform: translateY(-1px);
}

.site-header.scrolled .btn-header-line {
  background: var(--color-text);
  color: #FFFFFF;
  border-color: var(--color-text);
}

.site-header.scrolled .btn-header-line:hover {
  background: #3a3a3a;
}

/* --- HAMBURGER --- */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: #FFFFFF;
  transition: all 0.3s var(--ease-out);
}

.site-header.scrolled .hamburger span {
  background: var(--color-text);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(4.5px, 4.5px);
  background: #333333;
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4.5px, -4.5px);
  background: #333333;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 620px;
  overflow: hidden;
}

.hero-slideshow {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.6s ease;
}

/* フォールバック：画像がない場合の背景 */
.hero-slide:nth-child(1) {
  background-color: #1a1a1a;
  background-image: url('./image/hero-slide1.webp');
}
.hero-slide:nth-child(2) {
  background-color: #1e1e1e;
  background-image: url('./image/hero-slide2.webp');
}
.hero-slide:nth-child(3) {
  background-color: #222;
  background-image: url('./image/hero-slide3.webp');
}

.hero-slide.active {
  opacity: 1;
  animation: heroZoom 10s ease-out forwards;
}

@keyframes heroZoom {
  from { transform: scale(1.06); }
  to   { transform: scale(1.0); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    115deg,
    rgba(10, 8, 6, 0.72) 0%,
    rgba(10, 8, 6, 0.42) 55%,
    rgba(10, 8, 6, 0.15) 100%
  );
}

/* スライドドット */
.hero-slide-dots {
  position: absolute;
  bottom: 40px;
  left: clamp(24px, 6vw, 80px);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.slide-dot {
  width: 28px;
  height: 1.5px;
  background: rgba(255,255,255,0.3);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.3s, width 0.4s;
}
.slide-dot.active {
  background: #FFFFFF;
  width: 52px;
}

/* ヒーローコンテンツ */
.hero-inner {
  position: relative;
  z-index: 5;
  width: 100%;
  height: 100%;
  padding: 0 clamp(24px, 6vw, 80px) clamp(80px, 10vh, 130px);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

.hero-content {
  max-width: 600px;
}

.hero-en-label {
  font-family: var(--font-display);
  font-size: clamp(0.68rem, 0.9vw, 0.82rem);
  font-weight: 300;
  font-style: italic;
  letter-spacing: 0.24em;
  color: rgba(255, 255, 255, 0.58);
  margin-bottom: 22px;
  display: block;
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.42;
  margin-bottom: 28px;
  word-break: keep-all;
  overflow-wrap: break-word;
  display: flex;
  flex-direction: column;
}

.hero-title-line {
  display: block;
  font-size: clamp(1.9rem, 4vw, 3.4rem);
  color: #FFFFFF;
  text-shadow: 0 2px 28px rgba(0,0,0,0.3);
}

.hero-title-accent {
  display: block;
  font-size: clamp(1.7rem, 3.6vw, 3.1rem);
  color: #FFFFFF;
  text-shadow: 0 2px 28px rgba(0,0,0,0.3);
  white-space: nowrap;
}

.hero-subtitle {
  font-size: clamp(0.8rem, 1.05vw, 0.92rem);
  line-height: 2;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 40px;
  letter-spacing: 0.04em;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ヒーローボタン */
.btn-hero-line {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-text);
  padding: 16px 36px;
  border-radius: 1px;
  border: 1px solid var(--color-text);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  transition: background 0.25s, color 0.25s, transform 0.2s;
  white-space: nowrap;
}

.btn-hero-line:hover {
  background: var(--color-text);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.btn-hero-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: rgba(255, 255, 255, 0.88);
  padding: 14px 28px;
  border-radius: 1px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  transition: background 0.25s, border-color 0.25s, transform 0.2s;
  white-space: nowrap;
}

.btn-hero-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.88);
  transform: translateY(-1px);
}

/* スクロールインジケーター */
.hero-scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding-bottom: 8px;
  opacity: 0.55;
  align-self: flex-end;
}

.scroll-line {
  display: block;
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.85));
  animation: scrollPulse 2.2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.35; transform: scaleY(0.75); }
  50% { opacity: 1; transform: scaleY(1); }
}

.scroll-text {
  font-family: var(--font-display);
  font-size: 0.58rem;
  letter-spacing: 0.32em;
  color: rgba(255, 255, 255, 0.65);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-style: italic;
}

/* ============================================
   SECTIONS COMMON
   ============================================ */
.section {
  padding: var(--section-gap) clamp(20px, 5vw, 60px);
}

.section-container {
  max-width: var(--container-max);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: clamp(48px, 6vw, 80px);
}

.section-en {
  display: block;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(0.7rem, 0.9vw, 0.82rem);
  letter-spacing: 0.28em;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.section-en-deco {
  display: block;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  color: var(--color-text);
  opacity: 0.08;
  letter-spacing: 0.04em;
  line-height: 1;
  margin-bottom: 8px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  font-weight: 600;
  letter-spacing: 0.07em;
  line-height: 1.5;
  color: var(--color-text);
}

.section-lead {
  margin-top: 16px;
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.9;
}

/* ============================================
   ABOUT
   ============================================ */
.section-about {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
}

.about-img-wrapper {
  position: relative;
}

.about-photo {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  border-radius: 2px;
  display: block;
}

.placeholder-img {
  width: 100%;
  aspect-ratio: 3/4;
  background: linear-gradient(145deg, #F0EDEA 0%, #E8E5E0 100%);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.placeholder-img--dark {
  background: linear-gradient(145deg, #E8E5E2 0%, #DEDAD6 100%);
  aspect-ratio: 4/3;
}

.placeholder-img--balloon {
  background: linear-gradient(145deg, #F5F2EE 0%, #EDE9E4 100%);
  aspect-ratio: 4/3;
}

.placeholder-inner {
  text-align: center;
  color: var(--color-text-muted);
  padding: 24px;
}

.placeholder-inner svg {
  margin: 0 auto 12px;
  opacity: 0.4;
}

.placeholder-inner p {
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  line-height: 1.6;
  opacity: 0.6;
}

.balloon-placeholder-icon {
  font-size: 3rem;
  margin-bottom: 12px;
  opacity: 0.5;
}

.about-text-col {
  padding: clamp(0px, 2vw, 24px) 0;
}

.about-lead {
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  font-weight: 600;
  line-height: 1.7;
  letter-spacing: 0.04em;
  margin-bottom: 24px;
  color: var(--color-text);
}

.about-body {
  font-size: 0.92rem;
  line-height: 2;
  color: var(--color-text-light);
  margin-bottom: 40px;
}

.about-stats {
  display: flex;
  align-items: center;
  gap: 0;
  border-top: 1px solid var(--color-border);
  padding-top: 32px;
}

.stat-item {
  flex: 1;
  text-align: center;
  padding: 0 16px;
}

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--color-text);
  line-height: 1.2;
  margin-bottom: 6px;
}

.stat-label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
  flex-shrink: 0;
}

/* ============================================
   SERVICES
   ============================================ */
.section-services {
  background: var(--color-bg-warm);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 40px);
}

.service-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  overflow: hidden;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s, border-color 0.3s;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.09);
  border-color: var(--color-border-dark);
}

.service-img-wrapper {
  overflow: hidden;
  aspect-ratio: 4/3;
}

.service-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s var(--ease-out);
}

.service-card:hover .service-photo {
  transform: scale(1.04);
}

.service-body {
  padding: clamp(20px, 2.5vw, 32px);
}

.service-number {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-style: italic;
  letter-spacing: 0.2em;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.service-title {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
  color: var(--color-text);
  line-height: 1.4;
}

.service-title-en {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 300;
  font-style: italic;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-left: 8px;
}

.service-text {
  font-size: 0.88rem;
  line-height: 1.95;
  color: var(--color-text-light);
}

/* ============================================
   BALLOON (Special Feature)
   ============================================ */
.section-balloon {
  background: #F7F5F2;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.balloon-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
}

.balloon-badge {
  display: inline-block;
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-dark);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  padding: 5px 14px;
  border-radius: 1px;
  margin-bottom: 16px;
}

.balloon-deco-en {
  text-align: left;
  margin-bottom: 4px;
}

.balloon-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.4;
  margin-bottom: 28px;
  color: var(--color-text);
}

.balloon-title-sub {
  display: block;
  font-size: clamp(1.2rem, 2.2vw, 1.8rem);
  color: var(--color-text-light);
  font-weight: 400;
}

.balloon-body {
  font-size: 0.92rem;
  line-height: 2;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.balloon-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  margin-top: 32px;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border: 1px solid var(--color-text);
  border-radius: 1px;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--color-text);
  transition: background 0.3s, color 0.3s;
  position: relative;
}

.btn-outline:hover {
  background: var(--color-text);
  color: var(--color-bg);
}

.btn-badge {
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-dark);
  padding: 2px 8px;
  border-radius: 20px;
  white-space: nowrap;
  transition: color 0.3s, border-color 0.3s;
}

.btn-outline:hover .btn-badge {
  color: rgba(255,255,255,0.65);
  border-color: rgba(255,255,255,0.4);
}

.btn-text {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-text);
  padding-bottom: 4px;
  transition: gap 0.3s var(--ease-out);
}

.btn-text:hover {
  gap: 14px;
}

.btn-arrow {
  transition: transform 0.3s var(--ease-out);
}

.btn-text:hover .btn-arrow {
  transform: translateX(4px);
}

.balloon-img-wrapper {
  position: relative;
}

.balloon-photo {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 2px;
  display: block;
}

/* ============================================
   COMPANY
   ============================================ */
.section-company {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.company-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 5vw, 80px);
  align-items: start;
}

.company-table {
  border-top: 1px solid var(--color-border);
}

.company-row {
  display: grid;
  grid-template-columns: 7em 1fr;
  gap: 0 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
  align-items: baseline;
}

.company-row dt {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.company-row dd {
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--color-text);
}

.company-map {
  border-radius: 2px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  position: sticky;
  top: 100px;
}

.company-map iframe {
  width: 100%;
  display: block;
}

/* ============================================
   CONTACT
   ============================================ */
.section-contact {
  position: relative;
  background-color: var(--color-text);
  background-image: url('./image/contact-bg.webp');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: #FFFFFF;
  isolation: isolate;
}

.section-contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 10, 0.78);
  z-index: -1;
}

.section-contact .section-container {
  position: relative;
  z-index: 1;
}

.section-contact .section-en {
  color: rgba(255,255,255,0.4);
}

.section-contact .section-en-deco {
  color: #FFFFFF;
  opacity: 0.06;
}

.section-contact .section-title {
  color: #FFFFFF;
}

.section-contact .section-lead {
  color: rgba(255,255,255,0.7);
}

.contact-inner {
  text-align: center;
}

.contact-header {
  margin-bottom: clamp(40px, 5vw, 64px);
}

.contact-deco-en {
  text-align: center;
}

.contact-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.btn-contact-line {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #FFFFFF;
  color: var(--color-text);
  padding: 20px 52px;
  border-radius: 1px;
  border: 1px solid #FFFFFF;
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  transition: background 0.25s, color 0.25s, transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}

.btn-contact-line:hover {
  background: transparent;
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.contact-tel {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.06em;
}

.contact-tel-link {
  color: rgba(255,255,255,0.7);
  border-bottom: 1px solid rgba(255,255,255,0.3);
  padding-bottom: 1px;
  transition: color 0.2s, border-color 0.2s;
}

.contact-tel-link:hover {
  color: #FFFFFF;
  border-color: rgba(255,255,255,0.7);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: #111111;
  color: var(--color-bg);
  padding: clamp(48px, 6vw, 80px) clamp(20px, 5vw, 60px);
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  text-align: center;
}

.footer-logo-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-logo-image {
  display: block;
  width: min(80px, 22.5vw);
  height: auto;
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.footer-logo-en {
  font-family: var(--font-display);
  font-size: 0.68rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.14em;
  font-weight: 300;
  font-style: italic;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 32px;
}

.footer-nav a {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.08em;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: #FFFFFF;
}

.footer-sns {
  display: flex;
  gap: 20px;
  align-items: center;
}

.sns-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  color: rgba(255,255,255,0.55);
  transition: color 0.2s, border-color 0.2s, transform 0.2s;
}

.sns-link:hover {
  color: #FFFFFF;
  border-color: rgba(255,255,255,0.6);
  transform: translateY(-2px);
}

.footer-copy {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.06em;
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.scroll-hidden {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s var(--ease-out), transform 0.75s var(--ease-out);
}

.scroll-hidden.is-visible {
  opacity: 1;
  transform: none;
}

/* サービスカード：スタガーアニメーション */
.service-card.scroll-hidden:nth-child(2) {
  transition-delay: 0.12s;
}
.service-card.scroll-hidden:nth-child(3) {
  transition-delay: 0.24s;
}

/* PC版ではスマホ専用お問い合わせ項目を非表示 */
@media (min-width: 769px) {
  .nav-contact-mobile {
    display: none;
  }
}

/* ============================================
   RESPONSIVE — 1024px
   ============================================ */
@media (max-width: 1024px) {
  .global-nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .global-nav.active {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    justify-content: center;
    align-items: center;
    z-index: 999;
  }

  .global-nav.active .nav-list {
    flex-direction: column;
    align-items: center;
    gap: 36px;
  }

  .global-nav.active .nav-list a {
    font-size: 1.3rem;
    color: var(--color-text);
    letter-spacing: 0.14em;
  }

  .header-cta {
    display: none;
  }

  .about-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-img-wrapper {
    max-width: 480px;
    margin: 0 auto;
  }

  .services-grid {
    grid-template-columns: 1fr;
    max-width: 560px;
    margin: 0 auto;
  }

  .balloon-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .balloon-image-col {
    order: -1;
    max-width: 480px;
    margin: 0 auto;
    width: 100%;
  }

  .company-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .company-map {
    position: static;
  }

  .hero-scroll-indicator {
    display: none;
  }
}

/* ============================================
   RESPONSIVE — 768px
   ============================================ */
@media (max-width: 768px) {
  .header-inner {
    padding: 0 20px;
    height: 60px;
  }

  .site-header:not(.scrolled) {
    padding-top: 8px;
  }

  .logo-img {
    height: 30px;
  }

  .site-header:not(.scrolled) .logo-img {
    height: 40px;
  }

  .hero {
    min-height: 88vh;
  }

  .hero-inner {
    padding: 0 20px clamp(56px, 12vw, 80px);
  }

  .hero-title-line {
    font-size: clamp(1.7rem, 7.5vw, 2.4rem);
  }

  .hero-title-accent {
    font-size: clamp(1.5rem, 6.5vw, 2.2rem);
    white-space: normal;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .btn-hero-line,
  .btn-hero-ghost {
    width: 100%;
    justify-content: center;
    font-size: 0.88rem;
  }

  .section {
    padding-left: 20px;
    padding-right: 20px;
  }

  .about-stats {
    gap: 0;
  }

  .stat-item {
    padding: 0 10px;
  }

  .services-grid {
    grid-template-columns: 1fr;
    max-width: 100%;
  }

  .company-row {
    grid-template-columns: 6em 1fr;
    gap: 0 12px;
    padding: 16px 0;
  }

  .btn-contact-line {
    padding: 18px 32px;
    font-size: 0.95rem;
    width: 100%;
    justify-content: center;
  }

  .footer-nav {
    flex-direction: column;
    gap: 12px;
  }

  /* 1. ハンバーガーメニュー右寄せ */
  .header-inner {
    justify-content: space-between;
  }
  .hamburger {
    margin-left: auto;
  }

  /* 2. About Us 見出し左寄せ・br非表示 */
  .section-about .section-title {
    text-align: left;
    font-size: clamp(0.95rem, 3.8vw, 1.15rem);
  }
  .section-about .section-title br {
    display: none;
  }

  /* 3. Services 本文テキスト左寄せ */
  .service-text {
    text-align: left;
  }

  /* スマホ用ヒーロースライド画像切り替え */
  .hero-slide:nth-child(1) {
    background-image: url('./image/hero-slide1-sp.webp');
  }
  .hero-slide:nth-child(2) {
    background-image: url('./image/hero-slide2-sp.webp');
  }
  .hero-slide:nth-child(3) {
    background-image: url('./image/hero-slide3-sp.webp');
  }
}

/* ============================================
   RESPONSIVE — 480px
   ============================================ */
@media (max-width: 480px) {
  .hero-title-line {
    font-size: clamp(1.5rem, 8vw, 2rem);
  }

  .hero-title-accent {
    font-size: clamp(1.3rem, 7vw, 1.8rem);
  }

  .about-stats {
    flex-wrap: wrap;
    gap: 16px;
  }

  .stat-divider {
    display: none;
  }

  .stat-item {
    flex: 1 0 30%;
  }

  .company-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .company-row dt {
    font-size: 0.72rem;
    color: var(--color-text-muted);
  }

  .balloon-actions {
    align-items: stretch;
  }

  .btn-outline {
    justify-content: center;
  }
}

/* ===== 社名変更バナー ===== */

/* PC：サイトアクセス時に表示する社名変更お知らせモーダル */
.rename-banner {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 32px;
  background: rgba(0, 0, 0, 0.56);
}

.rename-banner.is-visible {
  display: flex;
}

.rename-banner__dialog {
  position: relative;
  width: min(640px, 100%);
  padding: 28px;
  background: #FFFFFF;
  border-radius: 4px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.38);
}

.rename-banner__dialog::before {
  content: '';
  position: absolute;
  top: 0;
  left: 36px;
  width: 112px;
  height: 4px;
  background: var(--color-text);
}

.rename-banner__close {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid rgba(30, 30, 30, 0.22);
  border-radius: 50%;
  background: #FFFFFF;
  color: var(--color-text);
  font-size: 1.7rem;
  font-weight: 300;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.rename-banner__close:hover {
  background: var(--color-text);
  color: #FFFFFF;
  transform: scale(1.06);
}

.rename-banner img {
  display: block;
  width: 100%;
  height: auto;
}

/* スマホ：PC固定バナーを消去 */
@media (max-width: 768px) {
  .rename-banner,
  .rename-banner.is-visible {
    display: none;
  }
}

/* スマホ：FV直下インラインバナー */
.rename-banner-sp {
  display: none;
}

@media (max-width: 768px) {
  .rename-banner-sp {
    display: block;
    width: 100%;
    padding: 12px 16px;
    box-sizing: border-box;
  }

  .rename-banner-sp img {
    display: block;
    width: 100%;
    height: auto;
  }
}

/* PC：スマホ用インラインバナーを非表示 */
@media (min-width: 769px) {
  .rename-banner-sp {
    display: none;
  }
}

/* お問い合わせフォームへの補助導線 */
.contact-form-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 28px;
  border-color: rgba(255, 255, 255, 0.8);
  color: #FFFFFF;
  font-size: 18px;
}

.contact-form-link:hover {
  background: #FFFFFF;
  color: var(--color-text);
}

@media (max-width: 768px) {
  .contact-form-link {
    width: 100%;
    padding: 16px 24px;
  }
}