/* =============================================
   Enowa. — Corporate Site Stylesheet
   Design: Coastal Editorial / Ishigaki Blue
   ============================================= */

/* ---------- CSS Variables ---------- */
:root {
  /* Palette: Ishigaki Sea & Light */
  --navy:        #0a2342;
  --navy-light:  #122d52;
  --teal:        #1a8fa0;
  --teal-light:  #2aafc2;
  --coral:       #e8724a;
  --coral-light: #f08560;
  --sand:        #faf8f4;
  --sand-warm:   #f5f0e8;
  --cream:       #fffdf9;
  --slate:       #4a5568;
  --slate-light: #718096;
  --border:      #e2ddd6;

  /* Typography */
  --font-serif:  'Noto Serif JP', 'Georgia', serif;
  --font-sans:   'Noto Sans JP', sans-serif;
  --font-display:'Cormorant Garamond', 'Georgia', serif;

  /* Sizing */
  --container:   1120px;
  --radius:      12px;
  --radius-lg:   20px;

  /* Transitions */
  --ease:        cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out:    cubic-bezier(0.0, 0, 0.2, 1);

  /* Safari 100vh fix: JSで window.innerHeight から上書きされる */
  --vh: 1vh;
}

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

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

body {
  font-family: var(--font-serif);
  background: var(--cream);
  color: var(--navy);
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 60px);
}

.hidden { display: none !important; }

/* ---------- Typography ---------- */
.section-label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 2rem;
  height: 1px;
  background: var(--teal);
}
.section-label.light {
  color: rgba(255,255,255,0.7);
}
.section-label.light::before {
  background: rgba(255,255,255,0.5);
}

.section-heading {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--navy);
}
.section-heading.light {
  color: #fff;
}
.heading-dot {
  color: var(--coral);
  font-family: var(--font-display);
  font-size: 1.2em;
}

.section-sub {
  margin-top: 1rem;
  font-size: 1rem;
  color: var(--slate);
  font-weight: 300;
}

.section-header {
  margin-bottom: 3.5rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  border-radius: 50px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: all 0.25s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--coral);
  color: #fff;
  box-shadow: 0 4px 20px rgba(232, 114, 74, 0.35);
}
.btn-primary:hover {
  background: var(--coral-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(232, 114, 74, 0.4);
}
.btn-ghost {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--navy);
}
.btn-ghost:hover {
  background: var(--navy);
  color: #fff;
}
.btn-coral {
  background: var(--coral);
  color: #fff;
  box-shadow: 0 4px 20px rgba(232, 114, 74, 0.4);
  font-size: 1.05rem;
  padding: 1rem 2.5rem;
}
.btn-coral:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(232, 114, 74, 0.45);
}
.btn-submit {
  width: 100%;
  background: var(--navy);
  color: #fff;
  padding: 1rem 2rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: var(--font-sans);
  font-weight: 500;
  letter-spacing: 0.05em;
  transition: all 0.25s var(--ease);
  position: relative;
  overflow: hidden;
}
.btn-submit::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--teal), var(--navy));
  opacity: 0;
  transition: opacity 0.3s;
}
.btn-submit:hover::after { opacity: 1; }
.btn-submit span { position: relative; z-index: 1; }
.btn-loading { display: none; }
.btn-submit.loading .btn-text { display: none; }
.btn-submit.loading .btn-loading { display: inline; }

/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes wave {
  0%   { transform: translateX(-50%) translateY(0) scaleY(1); }
  50%  { transform: translateX(-50%) translateY(-8px) scaleY(0.95); }
  100% { transform: translateX(-50%) translateY(0) scaleY(1); }
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}
@keyframes blink {
  0%,100% { opacity: 1; }
  50%      { opacity: 0; }
}
@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
@keyframes scroll-line {
  0%   { height: 0; opacity: 1; }
  100% { height: 40px; opacity: 0; }
}

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
  transition-delay: var(--delay, 0s);
  will-change: transform, opacity;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
  will-change: auto;
}

/* =============================================
   HEADER
   ============================================= */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 300;
  background: rgba(250, 248, 244, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
  padding: 0 clamp(20px, 4vw, 50px);
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
  will-change: transform;
}

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.nav-logo img {
  max-height: 52px;
  width: auto;
  display: block;
}
.logo-main {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--navy);
  letter-spacing: 0.05em;
}
.logo-sub {
  font-family: var(--font-serif);
  font-size: 0.62rem;
  color: var(--teal);
  letter-spacing: 0.15em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}
.nav-menu a {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 400;
  color: var(--navy);
  letter-spacing: 0.06em;
  transition: color 0.2s;
  position: relative;
}
.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--teal);
  transform: scaleX(0);
  transition: transform 0.25s var(--ease);
}
.nav-menu a:hover::after,
.nav-menu a:focus::after { transform: scaleX(1); }
.nav-menu a.nav-cta {
  background: var(--coral);
  color: #fff;
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  font-weight: 500;
  transition: all 0.25s var(--ease);
}
.nav-menu a.nav-cta::after { display: none; }
.nav-menu a.nav-cta:hover {
  background: var(--coral-light);
  transform: translateY(-1px);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  position: relative;
  z-index: 110;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: calc(var(--vh, 1vh) * 100);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(160deg, var(--navy) 0%, #0d3060 40%, #0e4a5e 70%, #1a7080 100%);
  padding: 100px clamp(20px, 5vw, 60px) 60px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.hero-wave {
  position: absolute;
  bottom: -5%;
  left: 50%;
  width: 200%;
  border-radius: 50% 50% 0 0;
  opacity: 0.08;
}
.wave-1 {
  height: 280px;
  background: var(--teal);
  animation: wave 8s ease-in-out infinite;
}
.wave-2 {
  height: 220px;
  background: var(--teal-light);
  animation: wave 10s ease-in-out infinite 1s;
  opacity: 0.06;
}
.wave-3 {
  height: 160px;
  background: #fff;
  animation: wave 12s ease-in-out infinite 2s;
  opacity: 0.04;
}
.hero-dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 40px 40px;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.7);
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.8s var(--ease-out) 0.2s both;
}
.eyebrow-line {
  width: 2.5rem;
  height: 1px;
  background: var(--teal-light);
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 9vw, 7rem);
  font-weight: 600;
  line-height: 1.15;
  color: #fff;
  letter-spacing: 0.01em;
  margin-bottom: 1.5rem;
}
.headline-line {
  display: block;
}
.line-1 { animation: fadeInUp 0.8s var(--ease-out) 0.4s both; }
.line-2 {
  animation: fadeInUp 0.8s var(--ease-out) 0.6s both;
  color: var(--teal-light);
  font-style: italic;
  font-family: var(--font-display);
  font-size: 1.05em;
}

.hero-sub {
  font-family: var(--font-sans);
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: rgba(255,255,255,0.8);
  margin-bottom: 2.5rem;
  min-height: 1.8em;
  font-weight: 300;
  animation: fadeIn 0.5s var(--ease-out) 0.9s both;
}
.typewriter-text {
  opacity: 0;
  transition: opacity 0.5s ease;
}
.typewriter-text.is-visible {
  opacity: 1;
}
.cursor {
  display: none;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s var(--ease-out) 1s both;
}
.hero-actions .btn-ghost {
  color: rgba(255,255,255,0.85);
  border-color: rgba(255,255,255,0.4);
}
.hero-actions .btn-ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
  color: #fff;
}

/* 案A：KWサブタイトル（H1直下のH2） */
.hero-kw-sub {
  font-family: var(--font-sans);
  font-size: clamp(0.75rem, 1.6vw, 0.9rem);
  font-weight: 300;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.12em;
  margin-top: -0.75rem;
  margin-bottom: 1.75rem;
  animation: fadeIn 0.8s var(--ease-out) 0.8s both;
}

/* 案B：H1内KWライン */
.line-kw {
  font-size: 0.45em;
  font-family: var(--font-sans);
  font-weight: 300;
  font-style: normal;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.1em;
  margin-bottom: 0.25em;
  animation: fadeInUp 0.8s var(--ease-out) 0.3s both;
}

.hero-note {
  margin-top: 1.25rem;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.08em;
  font-family: var(--font-sans);
  animation: fadeIn 0.8s var(--ease-out) 1.2s both;
}

.hero-deco {
  position: absolute;
  right: clamp(20px, 8vw, 120px);
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  z-index: 1;
}
.deco-circle {
  position: absolute;
  border-radius: 50%;
}
.c1 {
  width: 280px; height: 280px;
  background: radial-gradient(circle at 30% 30%, rgba(26,143,160,0.3), transparent 70%);
  top: -140px; right: 0;
  animation: float 7s ease-in-out infinite;
}
.c2 {
  width: 180px; height: 180px;
  background: radial-gradient(circle at 70% 70%, rgba(232,114,74,0.2), transparent 70%);
  top: -30px; right: 80px;
  animation: float 9s ease-in-out infinite 1.5s;
}
.deco-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.1);
}
.r1 {
  width: 350px; height: 350px;
  top: -175px; right: -30px;
  animation: spin-slow 30s linear infinite;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.4);
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  animation: fadeIn 1s var(--ease-out) 1.5s both;
}
.scroll-line {
  width: 1px;
  height: 0;
  background: rgba(255,255,255,0.4);
  animation: scroll-line 2s ease-in-out infinite 1.5s;
}

/* =============================================
   ABOUT
   ============================================= */
.about {
  padding: clamp(80px, 12vw, 140px) 0;
  background: var(--cream);
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(60px, 8vw, 120px);
  align-items: center;
}

.about-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.about-mark {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 2;
}
.mark-ja {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 600;
  color: var(--navy);
  letter-spacing: 0.2em;
}
.mark-en {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  color: var(--teal);
  letter-spacing: 0.15em;
}

.about-ring-deco {
  display: none;
}
.ring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px solid;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.ring-outer {
  width: 260px; height: 260px;
  border-color: rgba(26,143,160,0.2);
  animation: spin-slow 25s linear infinite;
}
.ring-inner {
  width: 180px; height: 180px;
  border-color: rgba(232,114,74,0.15);
  animation: spin-slow 18s linear infinite reverse;
}
.ring-dot {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--coral);
  top: -5px; left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 0 4px rgba(232,114,74,0.2);
}

.about-text {}
.about-body {
  margin: 2rem 0;
}
.about-body p {
  margin-bottom: 1.2rem;
  color: var(--slate);
  font-size: 0.97rem;
  line-height: 1.9;
}
.about-body strong {
  color: var(--navy);
  font-weight: 600;
}

.about-stats {
  display: flex;
  gap: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.stat-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--navy);
  line-height: 1;
}
.stat-num small {
  font-size: 0.75rem;
  font-family: var(--font-sans);
}
.stat-label {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--slate-light);
  letter-spacing: 0.05em;
}

/* =============================================
   PROBLEMS
   ============================================= */
.problems {
  padding: clamp(80px, 12vw, 140px) 0;
  background: linear-gradient(150deg, var(--navy) 0%, #0d3060 50%, #0e4a5e 100%);
  position: relative;
  overflow: hidden;
}
.problems::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--coral), var(--teal));
}

.problems-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
  margin-bottom: 3.5rem;
}

.problem-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  transition: all 0.3s var(--ease);
}
.problem-card:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(26,143,160,0.4);
  transform: translateY(-3px);
}
.problem-icon {
  flex-shrink: 0;
  width: 36px; height: 36px;
  color: var(--teal-light);
  margin-top: 0.1rem;
}
.problem-card p {
  font-size: 0.93rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.7;
  font-family: var(--font-sans);
}
.problem-card strong {
  color: #fff;
  font-weight: 500;
}

.problems-cta {
  text-align: center;
  padding-top: 1rem;
}
.problems-cta p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 1.5rem;
  font-family: var(--font-serif);
}
.problems-cta strong {
  color: #fff;
}

/* =============================================
   WHY / STORY
   ============================================= */
.why-section {
  padding: clamp(80px, 12vw, 140px) 0;
  background: var(--sand);
  position: relative;
}
.why-section::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: var(--border);
}

.story-timeline {
  display: grid;
  gap: 0;
  position: relative;
  max-width: 800px;
  margin: 0 auto 4rem;
}
.story-timeline::before {
  content: '';
  position: absolute;
  left: 22px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(to bottom, var(--teal), rgba(26,143,160,0.2));
}

.story-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 1.5rem;
  padding-bottom: 2.5rem;
}
.story-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  position: relative;
  z-index: 1;
}
.marker-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--teal);
  border: 2.5px solid var(--sand);
  box-shadow: 0 0 0 3px rgba(26,143,160,0.3);
  margin-top: 4px;
}
.marker-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--teal);
  letter-spacing: 0.1em;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  line-height: 1;
}

.story-content {
  padding-bottom: 0.5rem;
}
.story-content h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}
.story-content p {
  font-size: 0.93rem;
  color: var(--slate);
  line-height: 1.9;
}
.story-content strong {
  color: var(--navy);
  font-weight: 600;
}

.why-statement {
  max-width: 680px;
  margin: 0 auto;
}
blockquote {
  position: relative;
  padding: 2.5rem 3rem;
  background: var(--cream);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--teal);
  box-shadow: 0 4px 30px rgba(10,35,66,0.08);
  text-align: center;
}
blockquote::before {
  content: '\201C';
  position: absolute;
  top: 0.5rem; left: 1.5rem;
  font-family: var(--font-display);
  font-size: 5rem;
  color: rgba(26,143,160,0.1);
  line-height: 1;
}
blockquote p {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--navy);
  font-weight: 500;
  line-height: 1.7;
  position: relative;
  z-index: 1;
}
blockquote cite {
  display: block;
  margin-top: 1rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--slate-light);
  font-style: normal;
  letter-spacing: 0.08em;
}

/* =============================================
   SERVICES
   ============================================= */
.services {
  padding: clamp(80px, 12vw, 140px) 0;
  background: var(--cream);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.4rem;
}

.service-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  transition: all 0.3s var(--ease);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.service-card:hover {
  border-color: var(--teal);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(10,35,66,0.1);
}

.service-card.featured {
  border-color: var(--teal);
  background: linear-gradient(160deg, rgba(26,143,160,0.04) 0%, #fff 60%);
}
.service-card.highlight {
  border-color: var(--coral);
  background: linear-gradient(160deg, rgba(232,114,74,0.04) 0%, #fff 60%);
}
.service-card.full-width {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  gap: 0 1.5rem;
  align-items: start;
}
.service-card.full-width h3 { grid-column: 2; }
.service-card.full-width p { grid-column: 3; }
.service-card.full-width .service-change { grid-column: 4; min-width: 220px; }

.service-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 300;
  color: rgba(10,35,66,0.06);
  line-height: 1;
  position: absolute;
  top: 1.2rem; right: 1.5rem;
}
.service-icon {
  width: 44px; height: 44px;
  color: var(--teal);
  flex-shrink: 0;
}
.service-card.highlight .service-icon { color: var(--coral); }

.service-badge {
  position: absolute;
  top: 1rem; right: 1rem;
  background: var(--teal);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
}
.ai-badge { background: var(--coral); }

.service-card h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.4;
}
.service-card > p {
  font-size: 0.88rem;
  color: var(--slate);
  line-height: 1.8;
  flex: 1;
}
.service-card strong { color: var(--navy); font-weight: 600; }

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.service-tags li {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--teal);
  background: rgba(26,143,160,0.08);
  padding: 0.2rem 0.65rem;
  border-radius: 50px;
  border: 1px solid rgba(26,143,160,0.2);
}
.service-card.highlight .service-tags li {
  color: var(--coral);
  background: rgba(232,114,74,0.08);
  border-color: rgba(232,114,74,0.2);
}
.service-card.integrated {
  border: 2px solid var(--teal);
  border-left: 4px solid var(--teal);
  box-shadow: 0 8px 32px rgba(26,143,160,0.15);
  background: linear-gradient(160deg, rgba(26,143,160,0.04) 0%, #fff 60%);
}
.service-card.integrated:hover {
  box-shadow: 0 12px 40px rgba(26,143,160,0.22);
}
.badge-integrated {
  text-transform: none;
  letter-spacing: 0.06em;
}

.service-change {
  background: var(--sand-warm);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
}
.change-label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--teal);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.3rem;
}
.service-change p {
  font-size: 0.82rem !important;
  color: var(--navy) !important;
  line-height: 1.6 !important;
  font-family: var(--font-sans);
}

/* Anchor offset for fixed header (header height 80px + 20px margin) */
[id^="pricing-"] {
  scroll-margin-top: 100px;
}

.service-pricing-link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 13px;
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}
.service-pricing-link:hover { opacity: 0.7; }

.services-cta {
  text-align: center;
  margin-top: 3rem;
}

/* =============================================
   DIFFERENTIATORS
   ============================================= */
.differentiators {
  padding: clamp(80px, 12vw, 140px) 0;
  background: linear-gradient(150deg, var(--navy) 0%, #0d3060 50%, #0e4a5e 100%);
  position: relative;
}
.differentiators::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--coral), var(--teal));
}

.diff-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.diff-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  transition: all 0.3s var(--ease);
}
.diff-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
  border-color: rgba(26,143,160,0.4);
}
.diff-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  line-height: 1;
}
.diff-card h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.75rem;
}
.diff-card p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.72);
  line-height: 1.8;
  font-family: var(--font-sans);
}
.diff-card strong {
  color: var(--teal-light);
  font-weight: 500;
}

/* =============================================
   WORKS
   ============================================= */
.works {
  padding: clamp(80px, 12vw, 140px) 0;
  background: var(--sand);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.4rem;
}

.work-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  transition: all 0.3s var(--ease);
}
.work-card:hover {
  border-color: var(--teal);
  box-shadow: 0 12px 32px rgba(10,35,66,0.09);
}
.work-card.placeholder {
  background: var(--sand-warm);
  border-style: dashed;
}
.work-category {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--teal);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.work-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--navy);
}
.work-loc {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--slate-light);
}
.work-desc p {
  font-size: 0.88rem;
  color: var(--slate);
  line-height: 1.8;
}
.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.work-tags span {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--navy);
  background: var(--sand-warm);
  padding: 0.2rem 0.65rem;
  border-radius: 50px;
  border: 1px solid var(--border);
}
.work-result {
  background: rgba(26,143,160,0.06);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  border-left: 3px solid var(--teal);
}
.result-label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--teal);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.3rem;
}
.work-result p {
  font-size: 0.85rem;
  color: var(--navy);
  line-height: 1.6;
  font-family: var(--font-sans);
}

/* =============================================
   PROFILE
   ============================================= */
.profile {
  padding: clamp(80px, 12vw, 140px) 0;
  background: var(--cream);
}

.profile-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: clamp(60px, 8vw, 100px);
  align-items: start;
}

.profile-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  position: sticky;
  top: 100px;
}

.profile-photo-frame {
  position: relative;
  width: 280px;
}
.photo-placeholder {
  width: 280px; height: 320px;
  background: var(--sand-warm);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--slate-light);
  padding: 1rem;
}
.photo-deco {
  position: absolute;
  bottom: -12px; right: -12px;
  width: 100%; height: 100%;
  border: 2px solid var(--teal);
  border-radius: var(--radius-lg);
  opacity: 0.3;
  z-index: -1;
}

.profile-name-block {
  text-align: center;
}
.profile-name-ja {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: 0.1em;
}
.profile-name-en {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--slate-light);
  letter-spacing: 0.12em;
  margin-top: 0.2rem;
}
.profile-title {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--teal);
  margin-top: 0.4rem;
  letter-spacing: 0.06em;
}

.profile-body {
  margin: 2rem 0;
}
.profile-body p {
  margin-bottom: 1.2rem;
  font-size: 0.95rem;
  color: var(--slate);
  line-height: 1.9;
}
.profile-body strong {
  color: var(--navy);
  font-weight: 600;
}

.career-label {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1rem;
}
.career-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}
.career-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 1rem;
  font-size: 0.88rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--border);
}
.career-item:last-child { border-bottom: none; }
.career-item dt {
  font-family: var(--font-display);
  color: var(--teal);
  font-weight: 400;
  padding-top: 0.1rem;
}
.career-item dd {
  color: var(--slate);
  line-height: 1.7;
  font-family: var(--font-sans);
}

/* =============================================
   CONTACT
   ============================================= */
.contact {
  padding: clamp(80px, 12vw, 140px) 0;
  background: linear-gradient(150deg, var(--navy) 0%, #0d3060 60%, #0e4a5e 100%);
  position: relative;
  overflow: hidden;
}
.contact::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--coral));
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: start;
  position: relative;
}
.contact-layout::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(255,255,255,0.15);
  pointer-events: none;
}

.contact-sub {
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
  line-height: 1.9;
  margin: 1.5rem 0 2rem;
  font-family: var(--font-sans);
}

.contact-line-col {
  padding-right: clamp(2rem, 4vw, 3.5rem);
}
.contact-form-col {
  padding-left: clamp(2rem, 4vw, 3.5rem);
  padding-top: clamp(10rem, 18vw, 16rem);
}
.contact-line-block {
  margin-top: 2.5rem;
  background: rgba(6, 199, 85, 0.1);
  border: 1px solid rgba(6, 199, 85, 0.25);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.contact-line-heading {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 0.5rem;
}
.contact-line-sub {
  display: block;
  font-size: 0.9rem;
  font-weight: 400;
  color: rgba(255,255,255,0.6);
  font-family: var(--font-sans);
}
.contact-line-desc {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  margin: 0.75rem 0 1.5rem;
}
.line-add-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
  background: #06C755;
  color: #fff;
  padding: 1rem 1.5rem;
  border-radius: 50px;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  box-shadow: 0 4px 24px rgba(6, 199, 85, 0.4);
  transition: all 0.25s var(--ease);
}
.line-add-btn:hover {
  background: #05b34c;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(6, 199, 85, 0.5);
}
.contact-line-id {
  text-align: center;
  margin-top: 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.1em;
}
.form-heading {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.contact-form-block {
  background: rgba(232, 114, 74, 0.08);
  border: 1px solid rgba(232, 114, 74, 0.22);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.contact-form-heading {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 0.75rem;
}
.contact-form-desc {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.85;
  margin-bottom: 1.75rem;
}
.contact-form-block .btn-ghost {
  width: 100%;
  justify-content: center;
  color: rgba(255,255,255,0.85);
  border-color: rgba(255,255,255,0.4);
}
.contact-form-block .btn-ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
  color: #fff;
  transform: none;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.channel-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.25s var(--ease);
  width: fit-content;
}
.channel-btn svg { width: 22px; height: 22px; flex-shrink: 0; }
.line-btn {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
}
.line-btn:hover {
  background: #06C755;
  border-color: transparent;
  transform: translateX(4px);
}
.sns-btn {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
}
.sns-btn:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.4);
  transform: translateX(4px);
}
.form-btn {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
}
.form-btn:hover {
  background: rgba(255,255,255,0.18);
  border-color: rgba(255,255,255,0.45);
  transform: translateX(4px);
}

/* Form */
.contact-form-wrap {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: clamp(1rem, 3vw, 1.5rem);
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  overflow: hidden;
}
.gform-wrap {
  width: 100%;
  overflow: hidden;
}
.gform-wrap iframe {
  display: block;
  width: 100%;
  max-width: 100%;
  border: none;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}
.form-group label {
  font-family: var(--font-sans);
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--navy);
  letter-spacing: 0.03em;
}
.required {
  color: var(--coral);
  font-size: 0.75rem;
  margin-left: 0.15rem;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--navy);
  background: var(--cream);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(74,85,104,0.5);
  font-size: 0.85rem;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(26,143,160,0.12);
  background: #fff;
}
.form-group input.error,
.form-group textarea.error {
  border-color: var(--coral);
}
.form-error {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--coral);
  min-height: 1em;
}

.form-note {
  text-align: center;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--slate-light);
  margin-top: 0.75rem;
}

.form-success {
  text-align: center;
  padding: 3rem 2rem;
}
.success-icon {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: rgba(26,143,160,0.1);
  color: var(--teal);
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}
.form-success h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--navy);
  margin-bottom: 0.75rem;
}
.form-success p {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--slate);
  line-height: 1.8;
}

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,0.7);
  padding: 4rem 0 2rem;
}

.footer-layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  margin-bottom: 1rem;
}
.footer-logo .logo-main { font-size: 1.6rem; }
.footer-logo .logo-sub { color: rgba(255,255,255,0.4); }

.footer-tagline {
  font-size: 0.82rem;
  line-height: 1.8;
  font-family: var(--font-sans);
  color: rgba(255,255,255,0.5);
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer-nav a {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.04em;
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--teal-light); }

.footer-info {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.footer-info p {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.6;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.5rem;
}
.footer-bottom p {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
}

.footer-share {
  display: flex;
  gap: 1rem;
}
.footer-share a {
  color: rgba(255,255,255,0.4);
  transition: color 0.2s;
}
.footer-share a:hover { color: var(--teal-light); }

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px; height: 44px;
  background: var(--navy);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s var(--ease);
  box-shadow: 0 4px 16px rgba(10,35,66,0.3);
  z-index: 50;
  will-change: transform;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}
.back-to-top:hover {
  background: var(--teal);
  transform: translateY(-3px);
}

/* =============================================
   DESKTOP NAV — portalled outside header (JS)
   nav-menuをheaderの外に移動した後の位置補正
   ============================================= */
@media (min-width: 769px) {
  .nav-menu.portalled {
    position: fixed;
    top: 0;
    right: clamp(20px, 4vw, 50px);
    height: 80px;
    z-index: 350;
  }
}

/* =============================================
   RESPONSIVE — TABLET
   ============================================= */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .service-card.full-width {
    grid-column: auto;
    grid-template-columns: 1fr;
    display: flex;
  }
  .diff-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .about-visual {
    order: -1;
    flex-direction: row;
    justify-content: flex-start;
    gap: 2rem;
  }
  .about-ring-deco { display: none; }
  .profile-layout {
    grid-template-columns: 260px 1fr;
    gap: 3rem;
  }
  .contact-layout {
    grid-template-columns: 1fr 1fr;
    gap: 0;
  }
  .footer-layout {
    grid-template-columns: 1fr 1fr;
  }
  .footer-layout > .footer-brand {
    grid-column: 1 / -1;
  }
}

/* =============================================
   RESPONSIVE — MOBILE
   ============================================= */
@media (max-width: 768px) {
  /* Nav */
  .hamburger { display: flex; }
  .nav-menu {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(10,35,66,0.97);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    z-index: 200;
    padding-top: 80px;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a {
    color: rgba(255,255,255,0.85);
    font-size: 1.1rem;
  }
  .nav-menu a.nav-cta {
    background: var(--coral);
    color: #fff;
  }
  .nav-menu a::after { display: none; }

  /* Hero */
  .hero { padding-top: 90px; padding-bottom: 80px; min-height: calc(var(--vh, 1vh) * 90); }
  .hero-sub { min-height: 3.6em; } /* モバイルで長文が2行に折り返す場合の高さ確保 */
  .hero-deco { display: none; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; max-width: 280px; }

  /* Sections */
  .about-visual { flex-direction: column; align-items: center; }
  .about-stats { gap: 1.2rem; flex-wrap: wrap; }
  .services-grid { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .works-grid { grid-template-columns: 1fr; }
  .profile-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .profile-visual {
    position: static;
    align-items: center;
  }
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .contact-layout::after { display: none; }
  .contact-line-col,
  .contact-form-col {
    padding-left: 0;
    padding-right: 0;
    padding-top: 0;
  }
  .contact-cta-grid {
    grid-template-columns: 1fr;
  }
  .footer-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  .story-timeline::before { display: none; }
  .story-item {
    grid-template-columns: 1fr;
  }
  .story-marker { flex-direction: row; justify-content: flex-start; }
  .marker-label { writing-mode: horizontal-tb; transform: none; }
  blockquote { padding: 1.75rem 1.5rem; }
  .career-item { grid-template-columns: 80px 1fr; }
  .back-to-top { bottom: 1rem; right: 1rem; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: clamp(2.4rem, 11vw, 3.5rem); }
  .section-heading { font-size: clamp(1.5rem, 6vw, 2rem); }
  .problems-grid { grid-template-columns: 1fr; }
}

/* ---------- Focus Styles (Accessibility) ---------- */
:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Print ---------- */
@media print {
  .site-header,
  .scroll-indicator,
  .back-to-top,
  .hero-deco,
  .hero-bg { display: none; }
  .hero { min-height: auto; background: none; color: var(--navy); }
  .hero-headline,
  .hero-sub,
  .hero-eyebrow { color: var(--navy) !important; }
}

/* =============================================
   LINE導線強化スタイル（追加分）
   ============================================= */

/* Hero LINEボタン */
.btn-line-hero {
  background: #06C755;
  color: #fff;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 500;
  font-family: var(--font-sans);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: 0 4px 24px rgba(6,199,85,0.4);
  transition: all 0.25s var(--ease);
  letter-spacing: 0.04em;
}
.btn-line-hero:hover {
  background: #05b34c;
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(6,199,85,0.5);
}

/* 課題セクションLINE注記 */
.problems-line-note {
  margin-top: 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.06em;
}
.btn-line-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

/* Contactセクション：LINEプライマリバナー */
.contact-cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: stretch;
}

.line-primary-banner {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  background: #06C755;
  color: #fff;
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  transition: all 0.25s var(--ease);
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(6,199,85,0.35);
  position: relative;
  overflow: hidden;
}
.line-primary-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.12) 0%, transparent 60%);
  pointer-events: none;
}
.line-primary-banner:hover {
  background: #05b34c;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(6,199,85,0.45);
}
.line-banner-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px; height: 48px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
}
.line-banner-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.line-banner-text strong {
  font-family: var(--font-sans);
  font-size: 0.97rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.3;
}
.line-banner-text span {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.85);
  letter-spacing: 0.04em;
}
.line-banner-arrow {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.8);
  flex-shrink: 0;
  transition: transform 0.2s;
}
.line-primary-banner:hover .line-banner-arrow {
  transform: translateX(4px);
}

/* Contactセクション：Googleフォームプライマリバナー */
.form-primary-banner {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  background: #E8674A;
  color: #fff;
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  transition: all 0.25s var(--ease);
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(232,103,74,0.35);
  position: relative;
  overflow: hidden;
}
.form-primary-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.12) 0%, transparent 60%);
  pointer-events: none;
}
.form-primary-banner:hover {
  background: #d45a3e;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(232,103,74,0.45);
}
.form-primary-banner:hover .line-banner-arrow {
  transform: translateX(4px);
}

/* 仕切り線 */
.contact-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  color: rgba(255,255,255,0.35);
}
.contact-divider::before,
.contact-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,0.15);
}
.contact-divider span {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  white-space: nowrap;
  letter-spacing: 0.06em;
}

/* モバイル対応 */
@media (max-width: 480px) {
  .line-primary-banner { padding: 1rem 1.2rem; gap: 0.9rem; }
  .line-banner-icon { width: 40px; height: 40px; }
  .line-banner-text strong { font-size: 0.88rem; }
}

/* ===== FAQ Section ===== */
.faq-section {
  background: var(--color-bg, #fafafa);
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border, #e5e5e5);
  padding: 1.5rem 0;
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border, #e5e5e5);
}

.faq-question {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text, #111);
  margin-bottom: 0.75rem;
  padding-left: 1.5rem;
  position: relative;
}

.faq-question::before {
  content: "Q.";
  position: absolute;
  left: 0;
  color: var(--color-accent, #2a6b5e);
  font-weight: 700;
}

.faq-answer {
  font-size: 0.95rem;
  color: var(--color-text-muted, #555);
  line-height: 1.8;
  padding-left: 1.5rem;
  margin: 0;
  position: relative;
}

.faq-answer::before {
  content: "A.";
  position: absolute;
  left: 0;
  color: var(--color-text-muted, #555);
  font-weight: 700;
}

/* Enowa-brushup: sticky-line-btn */
.sticky-line-btn {
  position: fixed;
  bottom: 24px;
  right: 20px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 8px;
  background: #06C755;
  color: #fff;
  font-weight: 700;
  font-size: 0.875rem;
  padding: 12px 18px;
  border-radius: 999px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.18);
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}
.sticky-line-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.22);
}
@media (max-width: 480px) {
  .sticky-line-btn { bottom: 16px; right: 12px; }
}