/* ============================================================
   Cadiat Inc. — Corporate Site
   Design: Refined / Minimal / Warm Neutral
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Color Palette */
  --clr-bg:        #faf9f7;
  --clr-bg-alt:    #f4f2ee;
  --clr-text:      #2c2b29;
  --clr-text-sub:  #6b6760;
  --clr-accent:    #b8a98a;     /* warm champagne */
  --clr-accent-lt: #ddd3c0;
  --clr-border:    #e4e0d8;
  --clr-white:     #ffffff;

  /* Business icon color: clear mauve/rose */
  --clr-icon:      #a87898;

  /* Contact section — warm taupe (明るく上品) */
  --clr-contact-bg:    #ede8e0;
  --clr-contact-text:  #2c2b29;
  --clr-contact-sub:   #6b6760;
  --clr-contact-border: #c8bfb0;

  /* Footer — ヘッダーと同系のウォームアイボリー */
  --clr-footer-bg: #f0ede7;

  /* Typography */
  --font-en:   'Cormorant Garamond', 'Georgia', serif;
  --font-ja:   'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-body: 'Lato', 'Noto Sans JP', sans-serif;

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  6rem;
  --space-2xl: 8rem;

  /* Layout */
  --container: 1100px;
  --header-h:  80px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--font-ja);
  font-weight: 300;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.2s var(--ease);
}
a:hover { opacity: 0.65; }

ul { list-style: none; }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 2rem;
}

/* ---------- Section Common ---------- */
.section {
  padding-block: var(--space-xl);
}

.section-header {
  margin-bottom: var(--space-lg);
}

.section-en {
  display: block;
  font-family: var(--font-en);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  letter-spacing: 0.12em;
  color: var(--clr-accent);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.section-title {
  font-family: var(--font-ja);
  font-size: clamp(0.75rem, 1.2vw, 0.85rem);
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--clr-text-sub);
  text-transform: uppercase;
}

/* ---------- HEADER ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(250, 249, 247, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(228, 224, 216, 0.5);
  transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}

.site-header.scrolled {
  background: rgba(250, 249, 247, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--clr-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  transition: opacity 0.2s var(--ease);
}
.logo:hover { opacity: 0.65; }

.logo-text {
  font-family: var(--font-en);
  font-size: 1.55rem;
  font-weight: 300;
  letter-spacing: 0.22em;
  color: var(--clr-text);
  line-height: 1;
}

/* Desktop Nav */
.nav-desktop ul {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-desktop a {
  font-family: var(--font-en);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--clr-text);
  position: relative;
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--clr-accent);
  transition: width 0.3s var(--ease);
}
.nav-desktop a:hover::after { width: 100%; }
.nav-desktop a:hover { opacity: 1; }
.nav-desktop a.active { color: var(--clr-accent); }
.nav-desktop a.active::after { width: 100%; }

.nav-contact {
  padding: 0.45rem 1.2rem;
  border: 1px solid var(--clr-accent);
  border-radius: 2px;
  font-size: 0.95rem !important;
  letter-spacing: 0.12em;
  transition: background 0.25s var(--ease), color 0.25s var(--ease) !important;
}
.nav-contact:hover {
  background: var(--clr-accent);
  color: var(--clr-white) !important;
  opacity: 1 !important;
}
.nav-contact::after { display: none !important; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  flex-shrink: 0;
}

.hamburger span {
  display: block;
  height: 1px;
  background: var(--clr-text);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
  transform-origin: center;
}

.hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Mobile Nav Overlay */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.15);
  z-index: 998;
}
.mobile-overlay.open {
  display: block;
}

.nav-mobile {
  display: none;             /* デフォルトは非表示 */
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  padding-top: var(--header-h);
  background-color: #ffffff; /* 純白固定 */
  z-index: 999;
}

.nav-mobile.open {
  display: flex;             /* 開いたときはflexで表示 */
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.nav-mobile ul {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 2.5rem;
}

.nav-mobile a {
  font-family: var(--font-en);
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 0.18em;
  color: var(--clr-text);
}

/* ---------- HERO ---------- */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-block: calc(var(--header-h) + var(--space-xl)) var(--space-xl);
  background: var(--clr-bg);
}

/* Hero background image */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
  opacity: 0;
  transform-origin: right center;
  animation: rippleSpread 3.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s forwards;
}

/* 波紋が外側に広がっていくイメージ：拡大状態から通常サイズへズームアウト */
@keyframes rippleSpread {
  0%   { opacity: 0;    transform: scale(1.35); }
  20%  { opacity: 0.72; }
  100% { opacity: 0.72; transform: scale(1); }
}

/* picture要素もフルサイズに */
.hero-bg picture {
  display: block;
  width: 100%;
  height: 100%;
}

/* Subtle gradient overlay to keep text readable */
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(250, 249, 247, 0.92) 0%,
    rgba(250, 249, 247, 0.75) 45%,
    rgba(250, 249, 247, 0.15) 100%
  );
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero-content {
  max-width: 580px;
}

.hero-label {
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.25em;
  color: var(--clr-accent);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-ja);
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  font-weight: 300;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--clr-text);
  margin-bottom: 1.8rem;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.hero-sub {
  font-family: var(--font-ja);
  font-size: clamp(0.875rem, 1.1vw, 0.95rem);
  font-weight: 300;
  line-height: 2.1;
  color: var(--clr-text-sub);
  max-width: 520px;
  margin-bottom: 3rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2.4rem;
  min-width: 160px;
  font-family: var(--font-en);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  border-radius: 2px;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), opacity 0.2s var(--ease);
}
.btn:hover { opacity: 1; }

.btn-primary {
  background: var(--clr-text);
  color: var(--clr-white);
  border: 1px solid var(--clr-text);
}
.btn-primary:hover {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
}

.btn-ghost {
  background: transparent;
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
}
.btn-ghost:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}

/* ---------- BUSINESS ---------- */
.business {
  background: var(--clr-bg-alt);
}

.section-lead {
  font-size: clamp(0.875rem, 1.2vw, 0.95rem);
  font-weight: 300;
  color: var(--clr-text-sub);
  line-height: 2;
  max-width: 600px;
  margin-bottom: var(--space-lg);
}

.business-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}

.business-card {
  background: var(--clr-white);
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transition: box-shadow 0.3s var(--ease);
}
.business-card:hover {
  box-shadow: 0 8px 40px rgba(44, 43, 41, 0.07);
}

.business-card-icon {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
}

.business-card-icon svg {
  width: 100%;
  height: 100%;
}

.business-card-icon--medical {
  background: #b8a98a;   /* champagne gold */
  color: #ffffff;
}

.business-card-icon--beauty {
  background: #c9b99a;   /* warm gold light */
  color: #ffffff;
}

.business-card-title {
  font-family: var(--font-ja);
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  font-weight: 500;
  letter-spacing: 0.03em;
  line-height: 1.65;
  color: var(--clr-text);
}

.business-card-text {
  font-size: 0.875rem;
  font-weight: 300;
  line-height: 2;
  color: var(--clr-text-sub);
  max-width: 480px;
}

.business-card-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--clr-border);
}

.business-card-list li {
  font-size: 0.82rem;
  font-weight: 300;
  color: var(--clr-text-sub);
  padding-left: 1rem;
  position: relative;
  line-height: 1.7;
}
.business-card-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 5px;
  height: 1px;
  background: var(--clr-icon);
}

/* ---------- ABOUT ---------- */
.about {
  background: var(--clr-bg);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.about-body {
  font-size: clamp(0.9rem, 1.1vw, 0.95rem);
  font-weight: 300;
  line-height: 2.1;
  color: var(--clr-text-sub);
  margin-bottom: 1.4rem;
  max-width: 460px;
}
.about-body:last-child { margin-bottom: 0; }

.about-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.about-visual-inner {
  width: 100%;
  aspect-ratio: 1;
  max-width: 360px;
  border: 1px solid var(--clr-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.about-visual-inner::before {
  content: '';
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1px solid var(--clr-accent-lt);
}

.about-visual-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  position: relative;
  z-index: 1;
}

.about-visual-en {
  font-family: var(--font-en);
  font-size: clamp(0.82rem, 1.2vw, 0.95rem);
  font-weight: 300;
  letter-spacing: 0.14em;
  color: var(--clr-text-sub);
}

.about-visual-sep {
  font-family: var(--font-en);
  font-size: 1.2rem;
  color: var(--clr-accent);
  font-weight: 300;
}

/* ---------- COMPANY ---------- */
.company {
  background: var(--clr-bg-alt);
}

.company-table-wrap {
  max-width: 680px;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
}

.company-table th,
.company-table td {
  padding: 1.1rem 1.5rem;
  text-align: left;
  font-size: 0.875rem;
  font-weight: 300;
  border-bottom: 1px solid var(--clr-border);
  vertical-align: top;
}

.company-table th {
  width: 150px;
  font-weight: 400;
  color: var(--clr-text-sub);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.company-table td {
  color: var(--clr-text);
}

.company-table tr:first-child th,
.company-table tr:first-child td {
  border-top: 1px solid var(--clr-border);
}

.company-table tr:hover th,
.company-table tr:hover td {
  background: rgba(184, 169, 138, 0.04);
}

/* 会社名の全角英字 — 文字間を自然に */
.company-table td:first-of-type {
  font-feature-settings: "palt";
  letter-spacing: 0.01em;
}

.company-kana {
  font-size: 0.8rem;
  color: var(--clr-text-sub);
  margin-left: 0.4rem;
  font-weight: 300;
  letter-spacing: 0.04em;
}

.company-biz-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.company-biz-list li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.875rem;
  line-height: 1.7;
}
.company-biz-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 5px;
  height: 1px;
  background: var(--clr-accent);
}

/* ---------- PROFILE ---------- */
.profile {
  background: var(--clr-bg);
}

.profile-inner {
  max-width: 680px;
}

.profile-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-left: 3px solid var(--clr-accent);
  padding: 3rem;
  margin-top: var(--space-md);
}

.profile-name-block {
  margin-bottom: 1.5rem;
}

.profile-name-ja {
  font-family: var(--font-ja);
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--clr-text);
  margin-bottom: 0.35rem;
}

.profile-title-ja {
  font-size: 0.85rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  color: var(--clr-text-sub);
  font-feature-settings: "palt";
}

.profile-divider {
  width: 40px;
  height: 1px;
  background: var(--clr-accent);
  margin-bottom: 1.5rem;
}

.profile-bio p {
  font-size: 0.875rem;
  font-weight: 300;
  line-height: 2.1;
  color: var(--clr-text-sub);
  margin-bottom: 1.1rem;
  max-width: 560px;
}
.profile-bio p:last-child { margin-bottom: 0; }

/* ---------- CONTACT ---------- */
.contact {
  background: var(--clr-contact-bg);
}

.contact-inner {
  max-width: 600px;
  margin-inline: auto;
  text-align: center;
}

.contact .section-header {
  text-align: center;
}

.contact .section-en {
  color: var(--clr-accent);
}

.contact .section-title {
  color: var(--clr-contact-sub);
}

.contact-lead {
  font-size: 0.875rem;
  font-weight: 300;
  line-height: 2.1;
  color: var(--clr-contact-sub);
  margin-bottom: 2.5rem;
}

.contact-email-block {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.contact-email {
  font-family: var(--font-en);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  color: var(--clr-contact-text);
  border-bottom: 1px solid var(--clr-contact-border);
  padding-bottom: 2px;
  transition: border-color 0.25s var(--ease), opacity 0.2s var(--ease);
}
.contact-email:hover {
  border-color: var(--clr-accent);
  opacity: 0.75;
}

.copy-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1rem;
  border: 1px solid var(--clr-contact-border);
  border-radius: 2px;
  color: var(--clr-contact-sub);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.copy-btn:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}
.copy-btn svg {
  width: 16px;
  height: 16px;
}

.copy-feedback {
  margin-top: 1rem;
  font-size: 0.78rem;
  color: var(--clr-accent);
  letter-spacing: 0.08em;
  min-height: 1.2em;
}

/* ---------- FOOTER ---------- */
.site-footer {
  background: var(--clr-footer-bg);
  border-top: 1px solid var(--clr-border);
  padding-block: var(--space-lg);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  transition: opacity 0.2s var(--ease);
}
.footer-logo:hover { opacity: 0.55; }

.footer-logo .logo-text {
  font-size: 1.35rem;
  color: var(--clr-text-sub);
}

.footer-nav ul {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-nav a {
  font-family: var(--font-en);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--clr-text-sub);
  transition: color 0.2s var(--ease), opacity 0.2s var(--ease);
}
.footer-nav a:hover {
  color: var(--clr-accent);
  opacity: 1;
}

.footer-bottom {
  border-top: 1px solid var(--clr-border);
  padding-top: 1.5rem;
}

.footer-copy {
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  color: var(--clr-text-sub);
}

/* ---------- Scroll Reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ---------- Focus Styles ---------- */
:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 3px;
}

/* ---------- Selection ---------- */
::selection {
  background: var(--clr-accent-lt);
  color: var(--clr-text);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* デスクトップ・タブレットではnav-mobileを完全非表示 */
@media (min-width: 641px) {
  .nav-mobile,
  .mobile-overlay {
    display: none !important;
  }
  .hamburger {
    display: none !important;
  }
}

/* ---------- Tablet ---------- */
@media (max-width: 900px) {
  .business-grid {
    grid-template-columns: 1fr;
  }
  .about-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .about-visual {
    display: none !important;
  }
}

/* ---------- Mobile ---------- */
@media (max-width: 640px) {
  :root {
    --space-xl:  4rem;
    --space-lg:  2.5rem;
    --space-md:  1.75rem;
    --header-h:  64px;
  }

  /* ---- Container ---- */
  .container {
    padding-inline: 1.5rem;
  }

  /* ---- Header ---- */
  .nav-desktop { display: none !important; }
  .hamburger   { display: flex !important; }
  /* nav-mobileはdisplay:blockはデフォルトで設定済み。visibilityで制御 */

  .header-inner {
    padding-inline: 1.5rem;
  }

  .logo-text {
    font-size: 1.3rem;
    letter-spacing: 0.22em;
  }

  /* ---- Mobile nav overlay ---- */
  .nav-mobile ul {
    gap: 2.5rem;
  }
  .nav-mobile a {
    font-size: 1.5rem;
    letter-spacing: 0.18em;
  }

  /* ---- Section common ---- */
  .section {
    padding-block: 4rem 3.5rem;
  }

  .section-header {
    margin-bottom: 2rem;
  }

  /* section-en はモバイルでも大きく・エレガントに保つ */
  .section-en {
    font-size: clamp(1.8rem, 10vw, 2.4rem);
    letter-spacing: 0.1em;
  }

  .section-title {
    font-size: 0.78rem;
    letter-spacing: 0.14em;
  }

  .section-lead {
    font-size: 0.9rem;
    line-height: 2;
    margin-bottom: 2rem;
  }

  /* ---- Hero ---- */
  .hero {
    min-height: 100svh;
    padding-block: calc(var(--header-h) + 2.5rem) 4rem;
    align-items: center;
  }

  /* スマホ版波紋：PC版と同じ拡大→通常サイズのズームアウトで波紋が広がる演出 */
  .hero-bg-img {
    object-position: center center;
    opacity: 0;
    transform-origin: center center;
    animation: rippleSpread 3.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s forwards;
  }

  /* スマホ用ビジュアル：PC版と同じ明るい波紋が見えるようオーバーレイを極力薄く */
  .hero-bg::after {
    background: linear-gradient(
      to bottom,
      rgba(250, 249, 247, 0.25) 0%,
      rgba(250, 249, 247, 0.10) 50%,
      rgba(250, 249, 247, 0.05) 100%
    );
  }

  .hero-inner {
    padding-bottom: 0;
  }

  .hero-content {
    max-width: 100%;
    display: block;        /* 左寄せに戻す */
    text-align: left;
  }

  /* スマホのヒーロータイトル改行制御 */
  .hero-title-line1,
  .hero-title-line2,
  .hero-title-line3 {
    display: block;   /* 1行ずつ改行 */
  }

  .hero-label {
    font-size: 0.68rem;
    letter-spacing: 0.25em;
    margin-bottom: 1.5rem;
  }

  /* スマホヒーロータイトル：小さめにして上品な余白感 */
  .hero-title {
    font-size: clamp(1.2rem, 6.5vw, 1.65rem);
    line-height: 2.0;
    letter-spacing: 0.06em;
    margin-bottom: 1.8rem;
  }

  .hero-sub {
    font-size: 0.9rem;
    line-height: 2;
    max-width: 100%;
    margin-bottom: 2.5rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;   /* ボタンのみ中央揃え */
    gap: 0.85rem;
    width: 100%;
  }

  .btn {
    width: 100%;
    max-width: 280px;
    text-align: center;
    padding: 1rem 2rem;
    font-size: 1rem;       /* デスクトップと同じサイズ */
    letter-spacing: 0.16em;
  }

  /* ---- Business ---- */
  .business-grid {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .business-card {
    padding: 2.5rem 1.75rem;
    gap: 1.25rem;
  }

  .business-card-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    margin-bottom: 0;
  }

  .business-card-title {
    font-size: 1.05rem;
    line-height: 1.6;
  }

  .business-card-text {
    font-size: 0.875rem;
    line-height: 2;
  }

  .business-card-list {
    font-size: 0.84rem;
    gap: 0.6rem;
    padding-top: 1rem;
  }

  /* ---- About ---- */
  .about-inner {
    grid-template-columns: 1fr;
  }

  .about-body {
    font-size: 0.9rem;
    line-height: 2.1;
  }

  /* ---- Company ---- */
  .company-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .company-table {
    min-width: 300px;
  }

  .company-table th {
    width: 88px;
    padding: 1rem 0.85rem;
    font-size: 0.8rem;
    white-space: nowrap;
  }

  .company-table td {
    padding: 1rem 0.85rem;
    font-size: 0.84rem;
    line-height: 1.8;
  }

  /* ---- Profile ---- */
  .profile-inner {
    max-width: 100%;
  }

  .profile-card {
    padding: 2.25rem 1.75rem;
    border-left-width: 3px;
  }

  .profile-name-ja {
    font-size: 1.25rem;
  }

  .profile-title-ja {
    font-size: 0.82rem;
  }

  .profile-bio p {
    font-size: 0.875rem;
    line-height: 2.05;
  }

  /* ---- Contact ---- */
  .contact-inner {
    padding: 3rem 1.75rem;
  }

  .contact-lead {
    font-size: 0.875rem;
    line-height: 2;
    margin-bottom: 2rem;
  }

  .contact-email-block {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .contact-email {
    font-size: 1.05rem;
    word-break: break-all;
    letter-spacing: 0.05em;
  }

  .copy-btn {
    width: 100%;
    max-width: 220px;
    justify-content: center;
    padding: 0.6rem 1.2rem;
  }

  /* ---- Footer ---- */
  .footer-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 2rem;
  }

  .footer-logo .logo-text {
    font-size: 1.2rem;
    letter-spacing: 0.22em;
  }

  .footer-nav ul {
    display: grid;
    grid-template-columns: repeat(3, auto);
    gap: 0.85rem 2rem;
    justify-content: start;
  }

  .footer-nav a {
    font-size: 0.8rem;
    letter-spacing: 0.1em;
  }

  .footer-bottom {
    padding-top: 1.5rem;
  }

  .footer-copy {
    font-size: 0.74rem;
    letter-spacing: 0.06em;
  }

}