:root {
  --primary-color: #00B894;
  --primary-dark: #00906E;
  --secondary-color: #2C3E50;
  --accent-yellow: #F5D548;
  --accent-pink: #E84393;
  --accent-purple: #6C5CE7;
  --accent-teal: #00CEC9;
  --bg-light: #F8F9FA;
  --bg-yellow: #FFF8DC;
  --text-primary: #2D3436;
  --text-secondary: #636E72;
  --max-width: 1200px;
  --font-sans: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  --transition-base: 250ms ease;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity var(--transition-base);
}

a:hover {
  opacity: 0.8;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: #ffffff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

.site-logo img {
  height: 60px;
  width: auto;
}

.site-nav {
  display: flex;
  gap: 32px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

.site-nav a:hover {
  color: var(--primary-color);
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: 20px;
  background: linear-gradient(to right, #FFD95C, #19C099);
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.cta-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  opacity: 1;
}

/* Hero Section */
.hero {
  background: linear-gradient(to right, #FFD95C, #19C099);
  padding: 30px 0 0px 20px;
  position: relative;
  overflow: hidden;
}

.hero__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: center;
  padding-right: 0;
  padding-left: 24px;
}

.hero__content {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-right: 20px;
  max-width: 600px;
  align-items: center;
  text-align: center;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  color: #2D3436;
  letter-spacing: 0.03em;
  margin-bottom: 4px;
}

.hero__title {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.0;
  color: #2D3436;
  margin-bottom: 0;
  font-weight: 700;
}

.hero__logo {
  font-size: 64px;
  font-weight: 700;
  line-height: 1;
  color: #2D3436;
  letter-spacing: 0.02em;
  margin: 8px 0;
}

.hero__logo img {
  height: 120px;
  width: auto;
}

.hero__subtitle {
  font-size: 20px;
  font-weight: 500;
  color: #ffffff;
  letter-spacing: 0.15em;
  margin-top: -20px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  margin-top: 20px;
}

.hero__actions .cta-button {
  background: #ffffff;
  color: #111827;
  padding: 12px 36px;
  font-size: 20px;
  border-radius: 100px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border: 4px solid transparent;
  background-image: linear-gradient(#ffffff, #ffffff), linear-gradient(to right, #FFD95C, #19C099);
  background-origin: border-box;
  background-clip: padding-box, border-box;
}

.hero__visual {
  position: relative;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding-left: 0;
  margin-right: -24px;
}

.hero__visual img {
  max-width: none;
  width: 120%;
  height: auto;
  margin-left: auto;
}

/* Section */
.section {
  padding: 80px 24px;
}

.section--alt {
  /* background-color: var(--bg-light); */
}

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

.section__header {
  text-align: center;
  margin-bottom: 60px;
}

.section__eyebrow {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section__title {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.section__lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.card {
  background-color: #ffffff;
  border-radius: 16px;
  padding: 40px 32px;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  text-align: center;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card--accent {
  position: relative;
  overflow: hidden;
}

.card--accent::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-teal), var(--primary-color));
}

.card__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
}

.card__title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.card__text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* Timeline */
.timeline {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.timeline__step {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 40px;
  align-items: start;
}

.timeline__number {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
  color: #ffffff;
  font-size: 36px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}

.timeline__body {
  padding-top: 12px;
}

.timeline__title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.timeline__text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* Media Block */
.media-block {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 48px;
  align-items: center;
  margin-top: 60px;
}

.media-block img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
}

/* Highlight Panel */
.highlight-panel {
  background: linear-gradient(135deg, var(--accent-teal) 0%, var(--primary-color) 100%);
  border-radius: 24px;
  padding: 60px 40px;
  position: relative;
  overflow: hidden;
}

.highlight-panel::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.cta-block {
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-block img {
  margin: 0 auto 32px;
  width: 120px;
  height: auto;
}

.highlight-panel__title {
  font-size: 32px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
}

.highlight-panel__text {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 32px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.cta-block .cta-button {
  background-color: #ffffff;
  color: var(--primary-color);
  font-size: 16px;
  padding: 16px 40px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.cta-block .cta-button:hover {
  background-color: #f8f9fa;
}

.cta-note {
  margin-top: 16px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
}

/* Footer */
.footer {
  background-color: var(--secondary-color);
  color: rgba(255, 255, 255, 0.8);
  padding: 40px 24px;
  text-align: center;
}

.footer__links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 24px;
  font-size: 14px;
}

.footer__links a:hover {
  color: #ffffff;
}

.footer__copy {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

/* Intro Section */
.intro-section {
  padding: 60px 24px;
}

.intro-section__header {
  margin-bottom: 48px;
}

.intro-section__title {
  font-size: 28px;
  line-height: 1.5;
  font-weight: 700;
}

.intro-section__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 20px;
  align-items: center;
}

.intro-section__image-wrapper {
  position: relative;
  text-align: right;
}

.intro-section__badge {
  position: absolute;
  top: -20px;
  left: -20px;
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--accent-teal), var(--primary-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  box-shadow: 0 8px 24px rgba(0, 206, 201, 0.3);
}

.intro-section__badge-text {
  color: white;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  padding: 12px;
}

.intro-section__image {
  width: 80%;
  position: relative;
  z-index: 1;
  margin-left: auto;
}

.intro-section__features {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.intro-section__subtitle {
  font-size: 24px;
  color: #00906E;
  font-weight: 700;
  margin: auto;
}

.intro-feature {
  display: flex;
  gap: 16px;
  align-items: center;
  background: rgb(240, 240, 240);
  padding: 12px;
  border-radius: 6px;
}

.intro-feature__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.intro-feature__icon--primary {
  border-color: var(--primary-color);
}

.intro-feature__icon--yellow {
  border-color: var(--accent-yellow);
}

.intro-feature__icon img {
  width: 100%;
  height: 100%;
}

.intro-feature__title {
  font-size: 20px;
  font-weight: 700;
  color: #2D3436;
}

.intro-feature__text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* Problems Section */
.problems-section {
  padding: 40px 24px;
  background: #f5f5f5;
}

.problems-section__header {
  margin-bottom: 10px;
}

.problems-section__title {
  font-size: 28px;
  line-height: 1.5;
}

.problems-section__cards {
  gap: 20px;
}

.problem-card {
  padding: 32px 32px 0 32px;
  text-align: left;
}

.problem-card__icon {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.problem-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.problem-card__title {
  font-size: 24px;
  margin-bottom: 16px;
}

.problem-card__text {
  font-size: 16px;
  line-height: 1.8;
  font-weight: 500;
}

/* Approach Section */
.approach-section {
  background-color: #ffd95c;
  padding: 36px 24px;
}

.approach-section__title-box {
  border: 3px solid #2C3E50;
  padding: 4px 32px;
  text-align: center;
  margin-bottom: 4px;
}

.approach-section__title {
  font-size: 28px;
  font-weight: 700;
  color: #2C3E50;
  margin: 0;
}
.approach-section__subtitle {
  text-align: center;
  margin-bottom: 32px;
  font-size: 18px;
}

.approach-section__cards {
  gap: 40px;
}

.approach-card {
  padding: 10px 32px;
  display: flex;
  flex-direction: column;
}

.approach-card__icon {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, #00CEC9, #00B894);
  border-radius: 50%;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 206, 201, 0.3);
}

.approach-card__icon--blue {
  background: linear-gradient(135deg, #74B9FF, #0984E3);
  box-shadow: 0 4px 16px rgba(9, 132, 227, 0.3);
}

.approach-card__icon--green {
  background: linear-gradient(135deg, #55EFC4, #F8D748);
  box-shadow: 0 4px 16px rgba(85, 239, 196, 0.3);
}

.approach-card__icon-text {
  color: white;
  font-size: 15px;
  font-weight: 700;
  text-align: center;
  line-height: 1.3;
}

.approach-card__title {
  font-size: 16px;
  margin-bottom: 16px;
  line-height: 1.5;
}

.approach-card__title-image {
  margin-bottom: 16px;
}

.approach-card__title-image img {
  width: 40%;
  height: auto;
  margin: auto;
}

.approach-card h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  text-align: left;
  min-height: 3em;
  display: flex;
  align-items: start;
  justify-content: start;
}

.approach-card__text {
  font-size: 16px;
  line-height: 1.8;
  font-weight: 500;
}

/* Flow Section */
.flow-section {
  background: white;
  padding: 30px 24px 0px 24px;
}

.flow-section__title-box {
  background: #2C3E50;
  border-radius: 16px;
  padding: 20px 32px;
  text-align: center;
  margin-bottom: 48px;
}

.flow-section__title {
  font-size: 24px;
  font-weight: 700;
  color: white;
  margin: 0;
}

.flow-section__image-wrapper {
  text-align: center;
  margin: 0;
}

.flow-section__image {
  max-width: 700px;
  margin: 0 auto;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.flow-section__feature-image {
  width: 80%;
  height: auto;
  margin: auto;
}

.flow-section__steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 900px;
  margin: 48px auto 0;
}

.flow-step {
  border-radius: 16px;
  padding: 32px;
  color: white;
}

.flow-step--pink {
  background: linear-gradient(135deg, #E84393, #6C5CE7);
  box-shadow: 0 4px 16px rgba(232, 67, 147, 0.3);
}

.flow-step--blue {
  background: linear-gradient(135deg, #00CEC9, #0984E3);
  box-shadow: 0 4px 16px rgba(0, 206, 201, 0.3);
}

.flow-step--rose {
  background: linear-gradient(135deg, #FD79A8, #E84393);
  box-shadow: 0 4px 16px rgba(253, 121, 168, 0.3);
}

.flow-step--orange {
  background: linear-gradient(135deg, #FDCB6E, #E17055);
  box-shadow: 0 4px 16px rgba(253, 203, 110, 0.3);
}

.flow-step__number {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 16px;
}

.flow-step__title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.flow-step__text {
  font-size: 14px;
  line-height: 1.7;
  opacity: 0.95;
}

/* Game Elements Section */
.game-elements-section {
  padding: 60px 24px;
}

.game-elements-container {
  background: linear-gradient(135deg, #FFD95C 0%, #FFC94D 100%);
  border-radius: 32px;
  padding: 16px 16px 16px 48px;
  display: flex;
  gap: 48px;
  align-items: stretch;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  max-width: 1100px;
  margin: 0 auto;
}

.game-elements-label {
  flex-shrink: 0;
  width: 240px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-right: 24px;
}

.game-elements-label__title {
  font-size: 28px;
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
  line-height: 1;
  text-align: center;
}

.game-elements-label__text {
  font-size: 18px;
  font-weight: 700;
  color: #2D3436;
  line-height: 1.5;
  text-align: center;
}

.game-elements-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  flex: 1;
}

.game-element {
  background: #f4f3f3;
  border-radius: 20px;
  padding: 16px 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  display: flex;
  flex-direction: column;
}

.game-element__title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #ffd95c;
  background: #2D3436;
  padding: 4px 20px;
  border-radius: 12px;
  text-align: center;
}

.game-element__text {
  font-size: 18px;
  color: #2D3436;
  line-height: 1.7;
  margin-bottom: 24px;
  flex: 1;
}

.game-element__image {
  width: 100%;
  max-width: 250px;
  height: auto;
  margin: 0 auto;
  display: block;
}

/* Features Section */
.features-section {
  background: white;
  padding: 0px 24px;
}

.features-section__title-box {
  background: #2C3E50;
  border-radius: 16px;
  padding: 20px 32px;
  text-align: center;
  margin-bottom: 48px;
}

.features-section__title {
  font-size: 24px;
  font-weight: 700;
  color: white;
  margin: 0;
}

.features-section__image-wrapper {
  text-align: center;
  margin: 0;
}

.features-section__image {
  max-width: 800px;
  margin: 0 auto;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.features-section__feature-image {
  width: 80%;
  height: auto;
  margin: auto;
}

/* Detail Flow Section */
.detail-flow-section {
  padding: 10px 24px 0px 24px;
}

.detail-flow-section__title-box {
  background: #F8D748;
  border-radius: 16px;
  padding: 20px 32px;
  text-align: center;
  margin-bottom: 48px;
}

.detail-flow-section__title {
  font-size: 24px;
  font-weight: 700;
  color: #2D3436;
  margin: 0;
}

.detail-flow-section__image-wrapper {
  text-align: center;
  margin: 0;
}

.detail-flow-section__image {
  max-width: 900px;
  margin: 0 auto;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.detail-flow-section__feature-image {
  width: 80%;
  height: auto;
  margin: auto;
}

/* Usage Flow Section */
.usage-flow-section {
  background: #F5F5F5;
  padding: 20px 24px 50px 24px;
}

.usage-flow-section__header {
  text-align: center;
  margin-bottom: 28px;
}

.usage-flow-section__title {
  font-size: 32px;
  font-weight: 700;
  color: #2D3436;
  margin: 0;
}

.usage-flow-section__steps {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.usage-step {
  display: flex;
  gap: 0;
  align-items: stretch;
}

.usage-step__button {
  flex-shrink: 0;
  background-color: #19c099;
  width: 220px;
  color: white;
  font-size: 24px;
  font-weight: 700;
  padding: 24px 20px;
  border-radius: 16px 0 0 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0, 206, 201, 0.3);
}

.usage-step__content {
  flex: 1;
  background: white;
  border-radius: 0 16px 16px 0;
  padding: 24px 28px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.usage-step__text {
  font-size: 14px;
  color: #2D3436;
  line-height: 1.8;
  margin: 0;
}

/* Epilogue Section */
.epilogue-section {
  background: #F8F9FA;
  padding: 60px 24px;
}

.epilogue-section__image-wrapper {
  text-align: center;
}

.epilogue-section__image {
  max-width: 600px;
  margin: 0 auto;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

/* Final CTA Section */
.final-cta-section {
  background: linear-gradient(to right, #FFD95C, #19C099);
  padding: 0;
}

.final-cta-section__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 450px;
  max-width: 1400px;
  margin: 0 auto;
}

.final-cta-section__image-side {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  position: relative;
}

.final-cta-section__image {
  width: auto;
  height: 100%;
  max-height: 450px;
}

.final-cta-section__content-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: white;
}

.final-cta-section__logo {
  margin-bottom: 24px;
}

.final-cta-section__logo img {
  height: 70px;
  width: auto;
}

.final-cta-section__headline {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 10px;
  color: rgb(0, 0, 0);
  line-height: 1.5;
  text-align: center;
}

.final-cta-section__subtext {
  font-size: 22px;
  font-weight: 500;
  color: rgb(0, 0, 0);
  margin-bottom: 32px;
  text-align: center;
}

.final-cta-section__cta {
  text-align: center;
}

.final-cta-button {
  background: white;
  color: #111827;
  font-size: 18px;
  padding: 18px 56px;
  font-weight: 700;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  border-radius: 40px;
  border: 3px solid transparent;
  background-image: linear-gradient(#ffffff, #ffffff), linear-gradient(to right, #FFD95C, #19C099);
  background-origin: border-box;
  background-clip: padding-box, border-box;
}

/* Contact Section */
.contact-section {
  background: white;
  padding: 60px 24px;
}

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

.contact-section__title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #2D3436;
}

.contact-section__text {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.8;
}

/* Contact Form */
.section-form {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

.form-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 3px solid var(--primary-color);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.label-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.required {
  background: linear-gradient(to right, #FFD95C, #19C099);
  color: white;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid #E0E0E0;
  border-radius: 8px;
  font-size: 15px;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: white;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="tel"]:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(25, 192, 153, 0.1);
}

.form-group input::placeholder {
  color: #B0B0B0;
}

.form-group 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 fill='%232D3436' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.textarea-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  display: block;
  margin-bottom: 8px;
}

.form-group textarea {
  width: 100%;
  min-height: 140px;
  padding: 14px 16px;
  border: 2px solid #E0E0E0;
  border-radius: 8px;
  font-size: 15px;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: white;
  resize: vertical;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(25, 192, 153, 0.1);
}

.form-group textarea::placeholder {
  color: #B0B0B0;
}

.privacy-notice {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  text-align: center;
  margin: 8px 0;
}

.privacy-notice a {
  color: var(--primary-color);
  text-decoration: underline;
  font-weight: 600;
}

.privacy-notice a:hover {
  opacity: 0.8;
}

.btn-submit {
  width: 100%;
  max-width: 400px;
  margin: 24px auto 0;
  padding: 18px 40px;
  background: linear-gradient(to right, #FFD95C, #19C099);
  color: white;
  font-size: 16px;
  font-weight: 700;
  font-family: var(--font-sans);
  border: none;
  border-radius: 40px;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  display: block;
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.btn-submit:active {
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero {
    padding: 30px 0;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 40px;
    margin: 0 auto;
    padding-left: 0;
    padding-right: 0;
  }

  .hero__visual {
    display: none;
  }

  .hero__content {
    text-align: center;
    padding-right: 0;
    padding-left: 0;
    margin: 0 auto;
    max-width: 100%;
  }

  .hero__title {
    font-size: 20px;
  }

  .hero__logo {
    display: flex;
    justify-content: center;
  }

  .hero__logo img {
    height: 140px;
    margin: 0 auto;
  }

  .hero__actions {
    justify-content: center;
    margin-top: 0;
    margin-bottom: 40px;
  }

  .cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .intro-section__grid {
    grid-template-columns: 1fr;
  }

  .intro-section__image {
    width: 100%;
    margin: 0 auto;
  }

  .game-elements-container {
    flex-direction: column;
    padding: 32px 24px;
  }

  .game-elements-label {
    width: 100%;
    padding: 0;
    margin-bottom: 24px;
  }

  .game-elements-grid {
    grid-template-columns: 1fr;
  }

  .flow-section__feature-image,
  .features-section__feature-image,
  .detail-flow-section__feature-image {
    width: 100%;
  }

  .final-cta-section__container {
    grid-template-columns: 1fr;
  }

  .final-cta-section__image-side {
    display: none;
  }

  .final-cta-section__content-side {
    padding: 60px 40px;
  }
}

@media (max-width: 768px) {
  .site-logo img {
    height: 40px;
  }

  .cta-button {
    font-size: 11px;
    padding: 8px 16px;
  }

  .hero {
    padding: 20px 16px;
  }

  .hero__inner {
    gap: 24px;
  }

  .hero__title {
    font-size: clamp(16px, 3.5vw, 20px);
  }

  .hero__logo img {
    height: 100px;
  }

  .hero__subtitle {
    font-size: clamp(13px, 2.5vw, 16px);
  }

  .hero__actions .cta-button {
    font-size: 16px;
    padding: 10px 28px;
  }

  .section {
    padding: 40px 16px;
  }

  .section__title,
  .intro-section__title,
  .problems-section__title,
  .approach-section__title,
  .usage-flow-section__title {
    font-size: clamp(18px, 4.2vw, 24px);
  }

  .approach-section__subtitle {
    font-size: clamp(13px, 2.8vw, 16px);
  }

  .cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .problem-card,
  .approach-card {
    padding: 24px 20px;
  }

  .problem-card__title,
  .approach-card h3 {
    font-size: clamp(17px, 3.8vw, 22px);
  }

  .problem-card__text,
  .approach-card__text {
    font-size: clamp(14px, 2.8vw, 16px);
  }

  .intro-section__subtitle {
    font-size: 20px;
  }

  .intro-feature__title {
    font-size: 16px;
  }

  .game-elements-label__title {
    font-size: 24px;
  }

  .game-elements-label__text {
    font-size: 14px;
  }

  .game-element__title {
    font-size: 18px;
  }

  .game-element__text {
    font-size: 14px;
  }

  .usage-step {
    flex-direction: column;
  }

  .usage-step__button {
    width: 100%;
    border-radius: 16px 16px 0 0;
    font-size: 20px;
    padding: 16px;
  }

  .usage-step__content {
    border-radius: 0 0 16px 16px;
    padding: 20px;
  }

  .final-cta-section__container {
    min-height: auto;
  }

  .final-cta-section__image-side {
    padding: 24px 16px;
  }

  .final-cta-section__content-side {
    padding: 40px 24px;
  }

  .final-cta-section__logo img {
    height: 50px;
  }

  .final-cta-section__headline {
    font-size: 24px;
  }

  .final-cta-section__subtext {
    font-size: 16px;
  }

  .final-cta-button {
    font-size: 16px;
    padding: 14px 40px;
  }

  .contact-section__title {
    font-size: 24px;
    gap: 16px;
    text-align: center;
  }

  .section-form {
    padding: 0 16px;
  }

  .form-title {
    font-size: 24px;
    margin-bottom: 32px;
  }

  .btn-submit {
    font-size: 15px;
    padding: 16px 32px;
  }

  .timeline__number {
    margin: 0 auto;
  }

  .media-block {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .highlight-panel {
    padding: 40px 24px;
  }

  .highlight-panel__title {
    font-size: 24px;
  }

  .game-elements-grid {
    grid-template-columns: 1fr;
  }

  .usage-flow-section__steps {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .site-header__inner {
    padding: 8px 12px;
  }

  .site-logo img {
    height: 32px;
  }

  .cta-button {
    font-size: 10px;
    padding: 6px 12px;
  }

  .hero {
    padding: 16px 12px;
  }

  .hero__title {
    font-size: 16px;
  }

  .hero__logo img {
    height: 80px;
  }

  .hero__subtitle {
    font-size: 12px;
  }

  .hero__actions {
    flex-direction: column;
    margin-bottom: 10px;
  }

  .hero__actions .cta-button {
    font-size: 14px;
    padding: 10px 24px;
  }

  .section {
    padding: 32px 12px;
  }


  .section__title,
  .intro-section__title,
  .problems-section__title,
  .approach-section__title,
  .usage-flow-section__title {
    font-size: clamp(16px, 4.5vw, 20px);
  }

  .approach-section__subtitle {
    font-size: 12px;
  }

  .problem-card__title,
  .approach-card h3 {
    font-size: 16px;
  }

  .problem-card__text,
  .approach-card__text {
    font-size: 13px;
  }

  .game-elements-container {
    padding: 24px 16px;
  }

  .game-elements-label__title {
    font-size: 20px;
  }

  .game-element__title {
    font-size: 16px;
  }

  .usage-step__button {
    font-size: 18px;
  }

  .final-cta-section__headline {
    font-size: 20px;
  }

  .final-cta-section__subtext {
    font-size: 14px;
  }

  .final-cta-button {
    font-size: 14px;
    padding: 12px 32px;
  }

  .hero__link {
    width: 100%;
    justify-content: center;
  }

  .section__title {
    /* font-size: 24px; */
  }

  .card {
    padding: 32px 24px;
  }

  .section-form {
    padding: 0 12px;
  }

  .form-title {
    font-size: 20px;
    margin-bottom: 24px;
  }

  .label-text {
    font-size: 14px;
  }

  .required {
    font-size: 10px;
    padding: 2px 8px;
  }

  .form-group input[type="text"],
  .form-group input[type="email"],
  .form-group input[type="tel"],
  .form-group select,
  .form-group textarea {
    font-size: 14px;
    padding: 12px 14px;
  }

  .btn-submit {
    font-size: 14px;
    padding: 14px 28px;
    max-width: 100%;
  }

  .privacy-notice {
    font-size: 12px;
  }
}

/* Site Footer */
.site-footer {
  background-color: #1F2937;
  padding: 40px 24px;
  text-align: center;
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.site-footer__copyright {
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  margin: 0;
}

.site-footer__link {
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  text-decoration: underline;
  transition: color var(--transition-base);
}

.site-footer__link:hover {
  color: #ffffff;
  opacity: 1;
}

@media (max-width: 768px) {
  .site-footer {
    padding: 32px 16px;
  }

  .site-footer__inner {
    flex-direction: column;
  }

  .site-footer__copyright,
  .site-footer__link {
    font-size: 13px;
  }
}

@media (max-width: 480px) {
  .site-footer {
    padding: 24px 12px;
  }

  .site-footer__copyright,
  .site-footer__link {
    font-size: 12px;
  }
}