/* ===== Scroll Animations ===== */

/* Common base for all scroll-reveal elements */
.sa,
.sa-left,
.sa-right,
.sa-scale {
  opacity: 0;
  transition:
    opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.sa {
  transform: translateY(32px);
}
.sa-left {
  transform: translateX(-48px);
}
.sa-right {
  transform: translateX(48px);
}
.sa-scale {
  transform: scale(0.92);
  transition-duration: 0.8s;
}

.sa.is-show,
.sa-left.is-show,
.sa-right.is-show,
.sa-scale.is-show {
  opacity: 1;
  transform: none;
}

/* Parallax: only for absolute/decorative elements */
[data-plx] {
  will-change: transform;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .sa,
  .sa-left,
  .sa-right,
  .sa-scale {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  [data-plx] {
    will-change: auto !important;
  }
}

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

:root {
  --deep-navy: #0a1628;
  --deep-navy-light: #1a2d4a;
  --deep-navy-pale: #e8eaf0;
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --font-ja:
    'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo,
    sans-serif;
  --font-en: 'Inter', 'Noto Sans JP', sans-serif;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-ja);
  color: var(--text-primary);
  line-height: 1.8;
  background: var(--white);
  overflow-x: hidden;
}

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

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

/* ===== Layout ===== */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section--gray {
  background: var(--gray-50);
}

.section--navy {
  background: var(--deep-navy);
  color: var(--white);
}

.section-label {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.9;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header .section-subtitle {
  margin: 0 auto;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  transition: box-shadow 0.3s;
}

.header.scrolled {
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-family: var(--font-en);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--deep-navy);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--deep-navy);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-ja);
  font-size: 0.9375rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn--primary {
  background: var(--deep-navy);
  color: var(--white);
  padding: 12px 28px;
}

.btn--primary:hover {
  background: var(--deep-navy-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(10, 22, 40, 0.25);
}

.btn--outline {
  background: transparent;
  color: var(--deep-navy);
  padding: 12px 28px;
  border: 1.5px solid var(--gray-300);
}

.btn--outline:hover {
  border-color: var(--deep-navy);
  background: var(--gray-50);
}

.btn--white {
  background: var(--white);
  color: var(--deep-navy);
  padding: 14px 32px;
}

.btn--white:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(255, 255, 255, 0.25);
}

.btn--sm {
  font-size: 0.8125rem;
  padding: 8px 20px;
}

.btn--lg {
  font-size: 1rem;
  padding: 16px 36px;
  border-radius: 10px;
}

/* ===== Hero ===== */
.hero {
  padding-top: 160px;
  padding-bottom: 0;
  background: linear-gradient(
    170deg,
    var(--white) 0%,
    var(--deep-navy-pale) 50%,
    var(--gray-50) 100%
  );
  position: relative;
  overflow: hidden;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(80px);
  opacity: 0.5;
}

.hero-orb--1 {
  width: 400px;
  height: 400px;
  background: rgba(59, 130, 246, 0.12);
  top: -10%;
  left: -5%;
}

.hero-orb--2 {
  width: 300px;
  height: 300px;
  background: rgba(10, 22, 40, 0.06);
  bottom: 20%;
  right: -8%;
}

.hero::after {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 700px;
  height: 700px;
  background: radial-gradient(
    circle,
    rgba(59, 130, 246, 0.06) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.hero-inner {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 56px;
}

.hero-badge {
  display: inline-block;
  background: var(--deep-navy);
  color: var(--white);
  padding: 8px 20px;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--deep-navy) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 36px;
  max-width: 840px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 40px;
}

.hero-authority {
  display: flex;
  align-items: center;
  gap: 16px;
  justify-content: center;
}

.hero-person-img {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--white);
  box-shadow: 0 2px 8px rgba(10, 22, 40, 0.12);
}

.hero-authority-text {
  text-align: left;
  font-size: 0.8125rem;
  color: var(--gray-500);
  line-height: 1.5;
}

.hero-authority-name {
  font-weight: 600;
  color: var(--deep-navy);
}

.hero-image-wrapper {
  width: 100%;
  max-width: 1060px;
  margin: 0 auto;
  position: relative;
}

.hero-image-wrapper::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(to top, var(--gray-50) 0%, transparent 100%);
  z-index: 1;
  pointer-events: none;
}

.hero-img {
  width: 100%;
  border-radius: 16px 16px 0 0;
  box-shadow: 0 -4px 40px rgba(10, 22, 40, 0.08);
}

/* ===== Problem (Editorial) ===== */
.problems-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.problem-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 40px;
  align-items: start;
  padding: 48px 0;
  border-bottom: 1px solid var(--gray-200);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.problem-card:first-child {
  border-top: 1px solid var(--gray-200);
}

.problem-card:hover {
  padding-left: 16px;
}

.problem-number {
  font-family: var(--font-en);
  font-size: 4rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--gray-200);
  transition: color 0.4s;
  min-width: 96px;
  text-align: center;
  padding-top: 4px;
}

.problem-card--coral:hover .problem-number { color: #ef4444; }
.problem-card--amber:hover .problem-number { color: #f59e0b; }
.problem-card--teal:hover .problem-number  { color: #14b8a6; }

.problem-body {
  max-width: 720px;
}

.problem-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

.problem-subtitle {
  font-size: 0.9375rem;
  color: var(--gray-500);
  margin-bottom: 20px;
  line-height: 1.6;
  padding-left: 1px;
}

.problem-card--coral .problem-subtitle { color: #dc2626; }
.problem-card--amber .problem-subtitle { color: #d97706; }
.problem-card--teal .problem-subtitle  { color: #0d9488; }

.problem-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 2;
}

.problem-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ===== Solution ===== */
.solution-hero {
  max-width: 560px;
  margin: 0 auto 48px;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 6px 28px rgba(10, 22, 40, 0.08);
  border: 1px solid var(--gray-200);
}

.solution-hero img {
  width: 100%;
  height: auto;
  display: block;
}

.solution-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.solution-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 36px 32px;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--deep-navy) 0%, var(--accent) 100%);
  opacity: 0;
  transition: opacity 0.35s;
}

.solution-card:hover {
  border-color: transparent;
  box-shadow: 0 8px 30px rgba(10, 22, 40, 0.08);
}

.solution-card:hover::before {
  opacity: 1;
}

.solution-card-num {
  font-family: var(--font-en);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--gray-200);
  margin-bottom: 16px;
  transition: color 0.35s;
}

.solution-card:hover .solution-card-num {
  color: var(--accent);
}

.solution-card-label {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.solution-card-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.6;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.solution-card-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.85;
}

/* ===== Solution Partner ===== */
.solution-partner {
  margin-top: 48px;
}

.solution-partner-inner {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 0;
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.solution-partner-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, #f97066 0%, #fb923c 50%, #fbbf24 100%);
  opacity: 0;
  transition: opacity 0.35s;
}

.solution-partner-inner:hover {
  border-color: transparent;
  box-shadow: 0 8px 32px rgba(10, 22, 40, 0.07);
}

.solution-partner-inner:hover::before {
  opacity: 1;
}

.solution-partner-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 36px 28px;
  border-right: 1px solid var(--gray-200);
  text-align: center;
  gap: 14px;
}

.solution-partner-label {
  font-family: var(--font-en);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-400);
}

.solution-partner-logo {
  height: 42px;
  width: auto;
  object-fit: contain;
}

.solution-partner-company {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.solution-partner-role {
  font-family: var(--font-en);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--gray-400);
  line-height: 1.5;
}

.solution-partner-right {
  padding: 32px 36px;
}

.solution-partner-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 20px;
}

.solution-partner-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

.solution-partner-capabilities {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.solution-partner-cap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px 7px 10px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.25s;
}

.solution-partner-cap:hover {
  border-color: var(--deep-navy);
  color: var(--deep-navy);
}

.solution-partner-cap svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  stroke: var(--accent);
}

/* ===== Demo ===== */
.section--demo {
  background: var(--deep-navy);
  color: var(--white);
}

.section--demo .section-label {
  color: var(--accent-light);
}

.section--demo .section-title {
  color: var(--white);
}

.section--demo .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.demo-wrapper {
  max-width: 960px;
  margin: 0 auto;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.demo-image-link {
  display: block;
  position: relative;
  cursor: pointer;
  text-decoration: none;
}

.demo-image {
  width: 100%;
  height: auto;
  display: block;
}

.demo-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.35);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.demo-image-link:hover .demo-overlay {
  opacity: 1;
}

.demo-overlay-text {
  color: #fff;
  font-size: 1.25rem;
  font-weight: 600;
  padding: 0.75rem 2rem;
  background: var(--primary);
  border-radius: 8px;
}

/* ===== Features ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 36px 32px;
  transition: all 0.3s;
}

.feature-card:hover {
  border-color: transparent;
  box-shadow: 0 8px 30px rgba(10, 22, 40, 0.08);
}

.feature-card-icon {
  width: 52px;
  height: 52px;
  background: var(--deep-navy-pale);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-card-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--deep-navy);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.feature-card-subtitle {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--deep-navy);
  background: var(--deep-navy-pale);
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===== How It Works ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: calc(16.67% + 20px);
  right: calc(16.67% + 20px);
  height: 2px;
  background: var(--gray-200);
}

.step {
  text-align: center;
}

.step-num {
  width: 80px;
  height: 80px;
  background: var(--deep-navy);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 24px;
  position: relative;
  z-index: 1;
}

.step h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.step p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.steps-note {
  max-width: 640px;
  margin: 48px auto 0;
}

.steps-note-inner {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px 28px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
}

.steps-note-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--deep-navy);
  margin-top: 2px;
}

.steps-note-inner p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0;
}

/* ===== About (Who) ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  align-items: start;
}

.about-photo {
  background: linear-gradient(135deg, var(--deep-navy-pale), var(--gray-100));
  border-radius: 16px;
  padding: 40px 32px;
  text-align: center;
}

.about-photo-img {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 20px;
  border: 3px solid var(--white);
  box-shadow: 0 4px 12px rgba(10, 22, 40, 0.1);
}

.about-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.about-role {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.about-books {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 20px;
}

.about-book {
  text-align: center;
}

.about-book img {
  width: 90px;
  height: 128px;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(10, 22, 40, 0.15);
  transition: transform 0.2s;
}

.about-book img:hover {
  transform: scale(1.05);
}

.about-book-award {
  font-size: 0.625rem;
  font-weight: 600;
  color: #b45309;
  margin-top: 6px;
  line-height: 1.3;
}

.about-book-title {
  font-size: 0.625rem;
  color: var(--gray-600);
  margin-top: 2px;
  line-height: 1.4;
  max-width: 100px;
}

.about-awards {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
}

.about-award {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 0.75rem;
  color: var(--gray-600);
  background: var(--white);
  padding: 10px 20px;
  border-radius: 8px;
  text-align: center;
  width: fit-content;
}

.about-award-icon {
  color: #f59e0b;
  flex-shrink: 0;
  font-size: 1rem;
  line-height: 1;
}

.about-speaking-title {
  font-size: 0.875rem;
  font-weight: 700;
  margin-top: 24px;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.about-photo .about-speaking {
  text-align: left;
}

.about-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.about-content h3 + .trust-pillars {
  margin-top: -4px;
}

/* Trust Pillars */
.trust-pillars {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.trust-pillar {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 20px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  transition: border-color 0.3s;
}

.trust-pillar:hover {
  border-color: var(--deep-navy);
}

.trust-pillar-num {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
  min-width: 28px;
  padding-top: 2px;
}

.trust-pillar-body {
  flex: 1;
}

.trust-pillar-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--deep-navy);
  margin-bottom: 4px;
  line-height: 1.5;
}

.trust-pillar-body p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 0;
}

.about-content p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-content blockquote {
  border-left: 3px solid var(--deep-navy);
  padding-left: 20px;
  margin: 24px 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--deep-navy);
  line-height: 1.8;
}

.about-content h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-top: 24px;
  margin-bottom: 12px;
}

.about-speaking {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 2;
}

.about-speaking li::before {
  content: "・";
}

.about-frameworks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.about-framework-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 28px 24px;
  transition: all 0.3s;
}

.about-framework-card:hover {
  border-color: var(--deep-navy);
  box-shadow: 0 4px 16px rgba(10, 22, 40, 0.06);
}

.about-framework-num {
  font-family: var(--font-en);
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.about-framework-name {
  font-family: var(--font-en);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--deep-navy);
  margin-bottom: 4px;
  line-height: 1.4;
}

.about-framework-name-ja {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.about-framework-tagline {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--deep-navy);
  line-height: 1.6;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--gray-200);
}

.about-framework-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 8px;
}

.about-framework-desc:last-of-type {
  margin-bottom: 0;
}

.about-framework-source {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.6875rem;
  color: var(--gray-400);
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--gray-100);
}

/* ===== Testimonials ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 32px;
}

.testimonial-text {
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  background: var(--deep-navy-pale);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--deep-navy);
}

.testimonial-name {
  font-size: 0.875rem;
  font-weight: 600;
}

.testimonial-role {
  font-size: 0.8125rem;
  color: var(--gray-500);
}

/* ===== Press / Media ===== */
.press-grid {
  display: flex;
  justify-content: center;
  gap: 28px;
}

.press-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  overflow: hidden;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  max-width: 520px;
  width: 100%;
}

.press-card:hover {
  border-color: transparent;
  box-shadow: 0 8px 30px rgba(10, 22, 40, 0.1);
  transform: translateY(-2px);
}

.press-card-image {
  width: 100%;
  aspect-ratio: 1200 / 630;
  object-fit: cover;
  border-bottom: 1px solid var(--gray-100);
}

.press-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.press-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.press-card-source {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(59, 130, 246, 0.08);
  padding: 3px 10px;
  border-radius: 4px;
}

.press-card-date {
  font-size: 0.75rem;
  color: var(--gray-400);
  font-family: var(--font-en);
}

.press-card-title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: 12px;
  flex: 1;
}

.press-card-excerpt {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.press-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap 0.2s;
}

.press-card:hover .press-card-link {
  gap: 10px;
}

.press-card-link svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

/* ===== Pricing / Beta ===== */
.beta-card {
  background: var(--white);
  border: 2px solid var(--deep-navy);
  border-radius: 20px;
  padding: 56px;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.beta-badge {
  display: inline-block;
  background: var(--deep-navy);
  color: var(--white);
  padding: 8px 20px;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.beta-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.beta-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 8px;
}

.beta-timeline {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin: 32px 0;
  padding: 20px 0;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}

.beta-timeline-item {
  text-align: center;
}

.beta-timeline-value {
  font-family: var(--font-en);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--deep-navy);
}

.beta-timeline-label {
  font-size: 0.8125rem;
  color: var(--gray-500);
}

.beta-card .btn {
  margin-top: 24px;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.3s;
}

.faq-item:hover {
  border-color: var(--gray-300);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 0.9375rem;
  font-weight: 600;
  background: var(--white);
  border: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-ja);
  color: var(--text-primary);
}

.faq-question:hover {
  background: var(--gray-50);
}

.faq-arrow {
  transition: transform 0.3s;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* FAQ "OTB Core に聞いてみました" badge */
.faq-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 8px 20px;
  font-size: 0.9375rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--deep-navy) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  border: none;
  border-radius: 0;
  letter-spacing: 0.02em;
}

.faq-badge-icon {
  display: flex;
  align-items: center;
}

.faq-badge-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--accent);
}

/* FAQ speaker tag */
.faq-speaker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
  padding: 3px 12px 3px 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: rgba(59, 130, 246, 0.08);
  border-radius: 4px;
}

.faq-speaker-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: faq-pulse 2s ease-in-out infinite;
}

@keyframes faq-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.faq-speaker--ops {
  color: var(--gray-500);
  background: var(--gray-100);
  border-radius: 4px;
}

.faq-speaker--ops .faq-speaker-dot {
  background: var(--gray-400);
  animation: none;
}

.faq-note {
  font-size: 0.8125rem;
  color: var(--gray-400);
  margin-top: 8px;
}

.faq-answer-inner--rich p {
  margin: 0 0 1em;
}

.faq-answer-inner--rich p:last-child {
  margin-bottom: 0;
}

.faq-answer-inner--rich strong {
  color: var(--text-primary);
  font-weight: 600;
}

.faq-key-points {
  margin: 1em 0;
  padding-left: 1.4em;
  list-style: none;
}

.faq-key-points li {
  position: relative;
  padding-left: 0.2em;
  margin-bottom: 0.5em;
}

.faq-key-points li::before {
  content: '—';
  position: absolute;
  left: -1.4em;
  color: var(--primary);
  font-weight: 600;
}

/* ===== Final CTA ===== */
.final-cta {
  text-align: center;
  padding: 100px 24px;
}

.final-cta h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}

.final-cta p {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 40px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

.final-cta-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
}

/* ===== Footer ===== */
.footer {
  background: var(--deep-navy);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 48px 0 32px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 32px;
  margin-bottom: 40px;
}

.footer-logo {
  font-family: var(--font-en);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.footer-desc {
  font-size: 0.8125rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-links {
  display: flex;
  gap: 48px;
}

.footer-links h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 12px;
}

.footer-links a {
  display: block;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 8px;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
}

.footer-companies {
  display: flex;
  gap: 24px;
}

/* ===== Mobile ===== */
.mobile-menu-btn {
  display: none;
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }
  .section-title {
    font-size: 1.5rem;
  }
  .section-header {
    margin-bottom: 40px;
  }

  .nav {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
  }

  .hero {
    padding-top: 110px;
    padding-bottom: 0;
  }
  .hero h1 {
    font-size: 1.875rem;
  }
  .hero-description {
    font-size: 0.8125rem;
    line-height: 1.8;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
  }

  .problems-grid {
    grid-template-columns: 1fr;
  }

  .problem-card {
    grid-template-columns: 1fr;
    gap: 8px 0;
    padding: 32px 0;
  }

  .problem-number {
    font-size: 2.5rem;
    min-width: unset;
    text-align: left;
  }

  .problem-card:hover {
    padding-left: 0;
  }

  .solution-cards,
  .features-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .solution-partner-inner {
    grid-template-columns: 1fr;
  }

  .solution-partner-left {
    border-right: none;
    border-bottom: 1px solid var(--gray-200);
    padding: 28px 24px;
  }

  .solution-partner-right {
    padding: 24px;
  }

  .solution-partner-capabilities {
    flex-direction: column;
  }

  .solution-partner-cap {
    width: fit-content;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .steps::before {
    display: none;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-frameworks {
    grid-template-columns: 1fr;
  }
  .trust-pillar {
    padding: 14px 16px;
  }

  .press-grid {
    grid-template-columns: 1fr;
  }

  .beta-card {
    padding: 32px 24px;
  }
  .beta-timeline {
    gap: 20px;
  }

  .final-cta {
    padding: 64px 24px;
  }
  .final-cta h2 {
    font-size: 1.5rem;
  }
  .final-cta-actions {
    flex-direction: column;
    align-items: center;
  }

  .footer-inner {
    flex-direction: column;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
}