/* =====================================================
   SYNTHXA Ver03_office — Premium Minimalist Office
   ===================================================== */

:root {
  --bg:          #F5F6FA;
  --bg2:         #ECEEF5;
  --surface:     #FFFFFF;
  --navy:        #0D1B2A;
  --navy-mid:    #1E3A5F;
  --navy-light:  #2D5382;
  --purple:      #6B46FF;
  --purple-2:    #8B6CFF;
  --purple-light:#EDE9FF;
  --purple-dim:  #F4F2FF;
  --text:        #0D1B2A;
  --text-mid:    #3D5068;
  --text-light:  #7A8CA0;
  --border:      #E2E6EE;
  --white:       #FFFFFF;
  --shadow-sm:   0 2px 8px rgba(13,27,42,0.06);
  --shadow:      0 4px 24px rgba(13,27,42,0.10);
  --shadow-lg:   0 12px 48px rgba(13,27,42,0.15);
  --radius:      12px;
  --radius-lg:   20px;
  --font:        'Inter', 'Noto Sans JP', sans-serif;
  --transition:  0.25s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
strong { font-weight: 700; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.accent { color: var(--purple); }

/* =====================================================
   NAVIGATION
   ===================================================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  transition: background var(--transition), box-shadow var(--transition);
}
.nav.scrolled {
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--navy);
}
.nav-links {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-mid);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--purple); }
.nav-cta {
  background: var(--purple) !important;
  color: var(--white) !important;
  padding: 9px 20px !important;
  border-radius: 6px !important;
  font-weight: 600 !important;
  transition: background var(--transition) !important, transform var(--transition) !important;
}
.nav-cta:hover {
  background: var(--purple-2) !important;
  color: var(--white) !important;
  transform: translateY(-1px);
}
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--navy);
  transition: transform 0.3s;
}

/* =====================================================
   HERO
   ===================================================== */
.hero {
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 24px 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -120px; right: -120px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(107,70,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -80px; left: -80px;
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(107,70,255,0.05) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
  width: 100%;
}
.hero-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--purple);
  text-transform: uppercase;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-label::before {
  content: '';
  display: block;
  width: 24px; height: 2px;
  background: var(--purple);
}
.hero-title {
  font-size: clamp(2.25rem, 4vw, 4rem);
  font-weight: 900;
  color: var(--navy);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.hero-title .accent {
  color: var(--purple);
}
.hero-sub {
  font-size: 1.05rem;
  color: var(--text-mid);
  line-height: 1.9;
  margin-bottom: 36px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--purple);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(107,70,255,0.35);
}
.btn-primary:hover {
  background: var(--purple-2);
  box-shadow: 0 6px 24px rgba(107,70,255,0.45);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--text-mid);
  border: 1.5px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--purple);
  color: var(--purple);
  background: var(--purple-dim);
}
.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  color: var(--purple);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 16px 40px;
  border-radius: 8px;
  cursor: pointer;
  border: 2px solid var(--white);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  transition: all var(--transition);
  text-decoration: none;
}
.btn-download:hover {
  background: var(--purple-dim);
  border-color: var(--purple-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.trust-item {
  font-size: 0.82rem;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Hero visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-img-wrap {
  position: relative;
  display: inline-block;
}
.hero-mouse {
  width: 100%;
  max-width: 540px;
  border-radius: 16px;
  display: block;
}
.hero-badge {
  position: absolute;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 130px;
  box-shadow: var(--shadow);
}
.hero-badge--top { top: 10%; right: -10%; }
.hero-badge--bottom { bottom: 15%; left: -8%; }
.badge-num {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--purple);
  line-height: 1;
}
.badge-num small { font-size: 0.9rem; }
.badge-label {
  font-size: 0.72rem;
  color: var(--text-mid);
  line-height: 1.4;
}

/* =====================================================
   STATS BAR
   ===================================================== */
.stats-bar {
  background: var(--navy);
  padding: 32px 24px 20px;
  text-align: center;
}
.stats-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 48px;
}
.stat-num {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--purple-2);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-unit {
  font-size: 1.4rem;
  font-weight: 700;
}
.stat-desc {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.02em;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,0.12);
}
.stats-note {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.3);
  margin-top: 16px;
  letter-spacing: 0.03em;
}

/* =====================================================
   WHY
   ===================================================== */
.why { padding: 100px 0; background: var(--white); }
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--purple);
  text-transform: uppercase;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-label::before {
  content: '';
  display: block;
  width: 20px; height: 2px;
  background: var(--purple);
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  color: var(--navy);
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-mid);
  line-height: 1.9;
  max-width: 640px;
  margin-bottom: 56px;
}
.section-desc strong { color: var(--navy); }
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.why-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 0 0 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  border-top: 4px solid var(--purple);
  transition: transform var(--transition), box-shadow var(--transition);
  overflow: hidden;
}
.why-card-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  margin-bottom: 24px;
}
.why-card h3,
.why-card p {
  padding: 0 24px;
}
.why-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.why-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}
.why-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--navy);
}
.why-card p {
  font-size: 0.925rem;
  color: var(--text-mid);
  line-height: 1.8;
}

/* =====================================================
   FEATURES (交互レイアウト)
   ===================================================== */
.feature-row {
  padding: 80px 0;
  background: var(--white);
}
.feature-row--alt { background: var(--bg2); }
.feature-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.feature-row--alt .feature-inner {
  direction: rtl;
}
.feature-row--alt .feature-inner > * { direction: ltr; }

.feature-img-col {}
.feature-img-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.feature-img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* ── 16ボタン overlay visual ───────────────────── */
.btn-visual {
  position: relative;
  aspect-ratio: 4/3;
  background: #0D1B2A;
  background-image: radial-gradient(circle, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 20px 20px;
  overflow: hidden;
}
.btn-visual-mouse {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  mix-blend-mode: screen;
}
.btn-top-highlight {
  position: absolute;
  left: 38%;
  top: 12%;
  width: 22%;
  height: 16%;
  border: 1.5px dashed #6B46FF;
  border-radius: 6px;
  background: rgba(107,70,255,0.10);
}
.btn-side-highlight {
  position: absolute;
  right: 5%;
  top: 24%;
  width: 31%;
  height: 52%;
  border: 1.5px dashed #6B46FF;
  border-radius: 7px;
  background: rgba(107,70,255,0.08);
}
.btn-bottom-highlight {
  position: absolute;
  left: 44%;
  top: 47%;
  width: 12%;
  height: 32%;
  border: 1.5px dashed #6B46FF;
  border-radius: 6px;
  background: rgba(107,70,255,0.10);
}
.btn-badge-group {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 2;
}
.btn-badge {
  padding: 10px 18px;
  border-radius: 9px;
  text-align: center;
  min-width: 88px;
}
.btn-badge--total {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
}
.btn-badge--custom {
  background: rgba(107,70,255,0.25);
  border: 1.5px solid #6B46FF;
}
.btn-badge-num {
  display: block;
  font-size: 1.9rem;
  font-weight: 800;
  line-height: 1;
}
.btn-badge--total .btn-badge-num { color: rgba(255,255,255,0.9); }
.btn-badge--custom .btn-badge-num { color: #8B6CFF; }
.btn-badge-label {
  display: block;
  font-size: 0.6rem;
  letter-spacing: 0.4px;
  margin-top: 4px;
}
.btn-badge--total .btn-badge-label { color: rgba(255,255,255,0.45); }
.btn-badge--custom .btn-badge-label { color: rgba(139,108,255,0.85); }
.btn-visual-label {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 4px;
  color: rgba(255,255,255,0.22);
  white-space: nowrap;
  margin: 0;
}

.feature-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 14px;
  color: var(--purple);
  display: flex;
  align-items: center;
  gap: 8px;
}
.feature-label::before {
  content: '';
  display: block;
  width: 18px; height: 2px;
  background: var(--purple);
}
.label-blue  { color: var(--purple); }
.label-blue::before  { background: var(--purple); }
.label-green { color: var(--purple); }
.label-green::before { background: var(--purple); }
.label-orange{ color: var(--purple); }
.label-orange::before{ background: var(--purple); }
.label-purple{ color: var(--purple); }
.label-purple::before{ background: var(--purple); }

.feature-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin-bottom: 20px;
}
.feature-desc {
  font-size: 0.975rem;
  color: var(--text-mid);
  line-height: 1.9;
  margin-bottom: 24px;
}
.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.925rem;
  color: var(--text);
  line-height: 1.6;
}
.feature-list li::before {
  content: '✓';
  color: var(--purple);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

/* App switching demo */
.feature-apps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  padding: 16px 20px;
  background: var(--bg);
  border-radius: 8px;
  border: 1px solid var(--border);
}
.app-tag {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 6px;
  background: var(--white);
  border: 1px solid var(--border);
  color: var(--text-mid);
}
.app-tag.app-active {
  background: var(--purple);
  color: var(--white);
  border-color: var(--purple);
}
.app-arrow {
  color: var(--text-light);
  font-size: 0.75rem;
}

/* Metric highlight */
.feature-metric {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 24px;
  background: var(--purple-dim);
  border-left: 3px solid var(--purple);
  border-radius: 0 8px 8px 0;
}
.metric-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--purple);
  line-height: 1;
}
.metric-unit { font-size: 1rem; color: var(--text-mid); }
.metric-label {
  font-size: 0.82rem;
  color: var(--purple);
  font-weight: 500;
}

/* Compare table */
.compare-table {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
  margin-top: 24px;
}
.compare-row {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1.5fr;
  border-bottom: 1px solid var(--border);
}
.compare-row:last-child { border-bottom: none; }
.compare-row > span {
  padding: 12px 16px;
  font-size: 0.875rem;
  color: var(--text-mid);
  border-right: 1px solid var(--border);
}
.compare-row > span:last-child { border-right: none; }
.compare-row--head {
  background: var(--bg2);
  font-weight: 700;
  color: var(--navy) !important;
}
.compare-row--head > span { font-weight: 700; color: var(--navy); }
.compare-row:not(.compare-row--head):nth-child(even) > span { background: var(--bg); }
.good { color: var(--purple) !important; font-weight: 600 !important; }
.bad  { color: #DC2626 !important; }

/* =====================================================
   IMPACT
   ===================================================== */
.impact {
  padding: 100px 0;
  background: var(--bg2);
}
.impact .section-desc { margin-bottom: 48px; }
.impact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: start;
}

/* Before/after card */
.impact-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.impact-before-after {
  display: flex;
  align-items: stretch;
  gap: 0;
}
.impact-col {
  flex: 1;
  padding: 28px 24px;
}
.impact-before { background: var(--bg); border-right: 1px solid var(--border); }
.impact-after  { background: var(--purple-dim); }
.col-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-light);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.impact-after .col-label { color: var(--purple); }
.impact-arrow {
  display: flex;
  align-items: center;
  padding: 0 12px;
  font-size: 1.5rem;
  color: var(--purple);
  background: var(--bg2);
  font-weight: 700;
}
.time-block {
  display: flex;
  flex-direction: column;
  margin-bottom: 20px;
}
.time-val {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--text-light);
  line-height: 1;
  margin-bottom: 4px;
}
.time-val small { font-size: 0.9rem; }
.time-val.accent { color: var(--purple); }
.time-desc {
  font-size: 0.78rem;
  color: var(--text-light);
  line-height: 1.5;
}
.impact-total {
  background: var(--navy);
  color: var(--white);
  padding: 20px 28px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.total-label {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.total-val {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--white);
}
.total-sub { font-size: 1rem; font-weight: 400; color: rgba(255,255,255,0.6); }
.total-money {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
}
.total-money strong { color: var(--purple-2); }

/* Usecase list */
.impact-usecase {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 32px 28px;
  box-shadow: var(--shadow);
}
.impact-usecase h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--navy);
}
.usecase-list { display: flex; flex-direction: column; gap: 20px; }
.usecase-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.usecase-item:last-child { border-bottom: none; padding-bottom: 0; }
.usecase-icon { font-size: 1.5rem; flex-shrink: 0; margin-top: 2px; }
.usecase-item strong {
  display: block;
  font-size: 0.925rem;
  color: var(--navy);
  margin-bottom: 4px;
}
.usecase-item p {
  font-size: 0.845rem;
  color: var(--text-mid);
  line-height: 1.7;
}

/* =====================================================
   SOFTWARE
   ===================================================== */
.software { padding: 0; }
.software-bg { background: var(--navy); padding: 100px 0; }
.software-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.software-bg .section-label {
  color: rgba(255,255,255,0.5);
}
.software-bg .section-label::before {
  background: var(--purple);
}
.software-bg .section-title {
  color: var(--white);
}
.software-desc {
  font-size: 0.975rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.9;
  margin-bottom: 32px;
}
.software-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.software-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.sw-check {
  width: 22px; height: 22px;
  background: var(--purple);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--white);
  flex-shrink: 0;
  margin-top: 2px;
}
.software-list li strong {
  display: block;
  font-size: 0.925rem;
  color: var(--white);
  margin-bottom: 3px;
}
.software-list li p {
  font-size: 0.845rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.6;
}
.screen-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 80px rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.08);
}
.app-img { width: 100%; }

/* =====================================================
   SPECS
   ===================================================== */
.specs { padding: 100px 0; background: var(--white); }
.specs-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  margin-top: 40px;
}
.specs-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
}
.specs-table th {
  background: var(--bg2);
  padding: 14px 20px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-mid);
  text-align: left;
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.05em;
}
.specs-table td {
  padding: 16px 20px;
  font-size: 0.925rem;
  color: var(--text-mid);
  border-bottom: 1px solid var(--border);
}
.specs-table tr:last-child td { border-bottom: none; }
.specs-table tr:hover td { background: var(--bg); }
.specs-table td:first-child { font-weight: 500; color: var(--navy); }
.specs-table td strong { color: var(--navy); }

/* =====================================================
   CTA
   ===================================================== */
.cta {
  background: linear-gradient(135deg, #4A28E0, #6B46FF, #8B6CFF);
  padding: 100px 0;
  text-align: center;
}
.cta-inner { position: relative; }
.cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.cta-sub {
  font-size: 1rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.9;
  margin-bottom: 28px;
}
.cta-badges {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}
.ctabadge {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.85);
  padding: 6px 16px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 100px;
  background: rgba(255,255,255,0.1);
}
.cta-note {
  margin-top: 24px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.8;
}

/* =====================================================
   Q&A
   ===================================================== */
.qa {
  padding: 100px 0;
  background: var(--bg);
}
.qa .section-title { margin-bottom: 40px; }

.qa-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 820px;
}

.qa-item {
  border: 1px solid var(--border);
  border-bottom: none;
  background: var(--white);
  transition: border-color var(--transition);
  border-radius: 0;
}
.qa-item:first-child { border-radius: var(--radius) var(--radius) 0 0; }
.qa-item:last-child {
  border-bottom: 1px solid var(--border);
  border-radius: 0 0 var(--radius) var(--radius);
}
.qa-item[open] {
  border-color: var(--purple);
}
.qa-item[open] + .qa-item {
  border-top-color: var(--purple);
}

.qa-question {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--navy);
  user-select: none;
  transition: color var(--transition), background var(--transition);
}
.qa-question::-webkit-details-marker { display: none; }
.qa-question::after {
  content: '+';
  font-size: 20px;
  font-weight: 400;
  color: var(--purple);
  flex-shrink: 0;
  line-height: 1;
}
.qa-item[open] .qa-question::after {
  content: '×';
}
.qa-question:hover {
  color: var(--purple);
  background: var(--purple-dim);
}

.qa-answer {
  padding: 0 24px 20px;
}
.qa-answer p {
  font-size: 0.925rem;
  color: var(--text-mid);
  line-height: 1.9;
  border-left: 3px solid var(--purple);
  padding-left: 16px;
}

/* =====================================================
   CONTACT
   ===================================================== */
.contact {
  padding: 100px 0;
  background: var(--white);
  border-top: 1px solid var(--border);
}
.contact .section-title { margin-bottom: 12px; }

.contact-desc {
  font-size: 0.975rem;
  color: var(--text-mid);
  margin-bottom: 48px;
  line-height: 1.8;
}

.contact-form {
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: 0.02em;
}

.form-input,
.form-select,
.form-textarea {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  width: 100%;
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-light); }
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(107,70,255,0.1);
}
.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237A8CA0' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  background-color: var(--white);
}
.form-select option { background: var(--white); color: var(--text); }
.form-textarea { resize: vertical; min-height: 140px; line-height: 1.7; }

.form-submit {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--purple);
  color: var(--white);
  border: none;
  border-radius: 8px;
  padding: 14px 40px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(107,70,255,0.35);
  transition: all var(--transition);
  letter-spacing: 0.01em;
}
.form-submit:hover {
  background: var(--purple-2);
  box-shadow: 0 6px 24px rgba(107,70,255,0.45);
  transform: translateY(-2px);
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
  background: var(--navy);
  padding: 24px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-logo {
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--white);
}
.footer-copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
}

/* =====================================================
   WHY NOTE
   ===================================================== */
.why-note {
  font-size: 0.78rem;
  color: var(--text-light);
  margin-top: 8px;
  line-height: 1.7;
}
.why-note a {
  color: var(--purple);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}
.why-note a:hover { color: var(--purple-2); text-decoration: underline; }

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 1024px) {
  .hero-inner    { grid-template-columns: 1fr; text-align: center; }
  .hero-label    { justify-content: center; }
  .hero-actions  { justify-content: center; }
  .hero-trust    { justify-content: center; }
  .hero-badge--top { top: 0; right: 5%; }
  .hero-badge--bottom { bottom: 0; left: 5%; }
  .why-grid      { grid-template-columns: 1fr 1fr; }
  .feature-inner { grid-template-columns: 1fr; gap: 40px; }
  .feature-row--alt .feature-inner { direction: ltr; }
  .impact-grid   { grid-template-columns: 1fr; }
  .software-inner{ grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 768px) {
  .hero { padding: 90px 24px 60px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-title  { font-size: 2rem; }
  .hero-visual { display: none; }
  .why-grid    { grid-template-columns: 1fr; }
  .stats-inner { gap: 0; }
  .stat        { padding: 16px 24px; }
  .stat-divider{ display: none; }
  .compare-table { font-size: 0.78rem; }
  .impact-before-after { flex-direction: column; }
  .impact-arrow { padding: 10px 0; justify-content: center; font-size: 0; }
  .impact-arrow::before { content: "↓"; font-size: 1.5rem; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .nav-hamburger { display: flex; }
  .footer-inner { flex-direction: column; text-align: center; }
  .qa { padding: 80px 0; }
  .qa-question { padding: 16px 20px; font-size: 0.9rem; }
  .qa-answer { padding: 0 20px 16px; }
  .contact { padding: 80px 0; }
  .form-row { grid-template-columns: 1fr; }
  .form-submit { width: 100%; }
}

@media (max-width: 480px) {
  .btn { width: 100%; justify-content: center; }
  .hero-actions { flex-direction: column; }
}

/* ヒーローの上下余白を詰める（画面いっぱいの高さをやめ、中身の高さに合わせる） */
.hero { min-height: auto; padding-top: 104px; padding-bottom: 56px; }
@media (max-width: 768px) { .hero { padding-top: 88px; padding-bottom: 36px; } }

/* 数字の帯：4項目をPCで1段に収める */
@media (min-width: 900px) {
  .stats-inner { max-width: 1100px; flex-wrap: nowrap; }
  .stat { padding: 12px 32px; flex: 1 1 0; min-width: 0; text-align: center; }
}

/* スマホではスペック表を1項目ずつのカード型にする */
@media (max-width: 600px) {
  .specs-table thead { display: none; }
  .specs-table, .specs-table tbody, .specs-table tr, .specs-table td { display: block; width: 100%; }
  .specs-table tr { padding: 14px 18px; border-bottom: 1px solid var(--border); }
  .specs-table tr:last-child { border-bottom: none; }
  .specs-table td, .specs-table tr:last-child td { padding: 0; border: none; background: none; }
  .specs-table tr:hover td { background: none; }
  .specs-table td:first-child { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; color: var(--muted, var(--text-light)); margin-bottom: 4px; }
  .specs-table td:nth-child(2) { font-size: 1rem; margin-bottom: 4px; }
  .specs-table td:nth-child(3) { font-size: 0.82rem; }
}

/* 日本語を言葉のまとまりで改行する（未対応のブラウザでは従来どおり） */
body { word-break: auto-phrase; line-break: strict; }
h1, h2, h3 { text-wrap: balance; }
p, li { text-wrap: pretty; }

.spec-note { font-size: 0.8rem; color: var(--text-light); line-height: 1.7; margin: 0; padding: 14px 18px 16px; }