:root {
  --color-background: #f9f4ed;
  --color-surface: rgba(255, 253, 248, 0.88);
  --color-card: rgba(255, 255, 255, 0.92);
  --color-border: rgba(203, 174, 133, 0.35);
  --color-primary: #d48c3d;
  --color-primary-soft: rgba(212, 140, 61, 0.16);
  --color-secondary: #f8d9b8;
  --text-strong: #3b2f2f;
  --text-body: rgba(67, 54, 44, 0.9);
  --text-muted: rgba(125, 101, 79, 0.7);
  --shadow-lg: 0 24px 60px rgba(117, 91, 64, 0.18);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --max-width: 960px;
  font-family: "Outfit", "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at 15% 20%, rgba(248, 217, 184, 0.4), transparent 55%),
    radial-gradient(circle at 80% 10%, rgba(212, 140, 61, 0.18), transparent 50%),
    var(--color-background);
  color: var(--text-body);
  letter-spacing: 0.01em;
}

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

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

a:hover,
a:focus {
  color: var(--color-primary);
}

.page-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 20px clamp(20px, 4vw, 48px);
  background: rgba(255, 253, 248, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(203, 174, 133, 0.25);
}

.header-inner {
  width: min(var(--max-width), 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  color: var(--text-strong);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(212, 140, 61, 0.95), rgba(248, 217, 184, 0.95));
  font-size: 14px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fffaf2;
}

.brand-name {
  font-size: 20px;
  letter-spacing: 0.08em;
}

.site-nav {
  display: flex;
  gap: 24px;
  font-size: 15px;
  color: var(--text-muted);
}

.site-nav a {
  padding: 6px 0;
  transition: color 0.2s ease, opacity 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus {
  color: var(--text-strong);
  opacity: 1;
}

.cta-link {
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--color-primary);
  color: #fffaf2;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(212, 140, 61, 0.28);
}

main {
  flex: 1;
}

.section {
  padding: clamp(60px, 8vw, 120px) clamp(20px, 6vw, 48px);
  width: min(var(--max-width), 100%);
  margin: 0 auto;
}

.section-heading {
  max-width: 580px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-heading h2 {
  margin: 12px 0 16px;
  font-size: clamp(28px, 3.4vw, 44px);
  color: var(--text-strong);
}

.section-heading p {
  margin: 0;
  font-size: 16px;
  color: var(--text-body);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 16px;
  margin: 0;
  border-radius: 999px;
  border: 1px solid rgba(203, 174, 133, 0.4);
  color: #a3682f;
  font-size: 12px;
  letter-spacing: 0.18em;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(360px, 3fr) minmax(240px, 2fr);
  gap: clamp(32px, 4vw, 56px);
  align-items: center;
  padding: clamp(80px, 11vw, 140px) clamp(20px, 5vw, 48px);
  margin: 0 auto;
  width: min(var(--max-width), 100%);
  border: 1px solid rgba(203, 174, 133, 0.32);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(248, 217, 184, 0.65));
  box-shadow: 0 24px 60px rgba(117, 91, 64, 0.2);
}

.hero::before,
.hero::after {
  content: none;
}

.hero-copy {
  max-width: 640px;
}

.hero-copy h1 {
  margin: 16px 0 20px;
  font-size: clamp(34px, 4.6vw, 52px);
  line-height: 1.1;
  color: var(--text-strong);
}

.lead {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-body);
}



.hero-actions {
  display: flex;
  gap: 16px;
  margin: 32px 0 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn.primary {
  background: linear-gradient(135deg, rgba(212, 140, 61, 0.95), rgba(240, 192, 132, 0.9));
  color: #fffaf2;
  box-shadow: 0 16px 40px rgba(212, 140, 61, 0.3);
}

.btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 45px rgba(212, 140, 61, 0.35);
}

.btn.secondary {
  border: 1px solid rgba(203, 174, 133, 0.6);
  color: var(--text-strong);
  background: rgba(255, 255, 255, 0.75);
}

.btn.secondary:hover {
  background: rgba(255, 244, 228, 0.95);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: flex-end;
}

.glass-card {
  position: relative;
  padding: 24px;
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(203, 174, 133, 0.25);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
  max-width: 320px;
}

.glass-card img {
  border-radius: calc(var(--radius-xl) - 10px);
  border: 1px solid rgba(203, 174, 133, 0.35);
}

.floating-tag {
  position: absolute;
  bottom: 16px;
  right: 16px;
  padding: 10px 20px;
  border-radius: 999px;
  background: rgba(244, 200, 150, 0.95);
  color: var(--text-strong);
  font-weight: 600;
  font-size: 14px;
  box-shadow: 0 20px 40px rgba(212, 140, 61, 0.28);
}

.about {
  background: transparent;
}

.about-content {
  max-width: 700px;
  margin: 0 auto;
  display: grid;
  gap: 20px;
  text-align: left;
}

.about-content h2 {
  margin: 0;
  font-size: clamp(30px, 3.6vw, 40px);
  color: var(--text-strong);
}

.about-content p {
  margin: 0;
  line-height: 1.7;
}

.earn {
  background: rgba(255, 247, 235, 0.7);
  border-radius: var(--radius-xl);
  box-shadow: 0 16px 40px rgba(117, 91, 64, 0.16);
}

.earn-simple {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  display: grid;
  gap: 20px;
}

.earn-simple h2 {
  margin: 0;
  color: var(--text-strong);
  font-size: clamp(30px, 3.4vw, 42px);
}

.community {
  padding-bottom: clamp(80px, 10vw, 140px);
}

.community-card {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 72px);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.94), rgba(248, 217, 184, 0.6));
  border: 1px solid rgba(203, 174, 133, 0.32);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.community-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(248, 217, 184, 0.5), transparent 65%);
  opacity: 0.5;
  mix-blend-mode: screen;
}

.community-card .section-heading {
  margin-bottom: 32px;
}

.community-card .section-heading,
.community-card ul {
  position: relative;
  z-index: 1;
}

.community-highlights {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  font-size: 16px;
}

.community-highlights li {
  padding: 18px 20px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(203, 174, 133, 0.3);
  box-shadow: 0 12px 28px rgba(117, 91, 64, 0.16);
}

.download {
  background: transparent;
}

.download-content {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  display: grid;
  gap: 24px;
}

.download-content h2 {
  margin: 0;
  color: var(--text-strong);
  font-size: clamp(28px, 4vw, 44px);
}

.download-content p {
  margin: 0;
  font-size: 17px;
}

.store-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border-radius: 12px;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.store-badge:hover {
  transform: translateY(-2px);
  filter: drop-shadow(0 8px 18px rgba(117, 91, 64, 0.2));
}

.store-badge img {
  height: 56px;
  width: auto;
  display: block;
}

.download-note {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
}

.support {
  position: relative;
  background: rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: clamp(60px, 8vw, 100px);
}

.support-card {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
  padding: clamp(32px, 5vw, 52px);
  display: grid;
  gap: 24px;
  text-align: center;
}

.support-card p {
  margin: 0;
  line-height: 1.7;
}

.support-bg {
  position: absolute;
  inset: -40% -30% 40% 40%;
  background: radial-gradient(circle at top left, rgba(212, 140, 61, 0.25), transparent 55%),
    radial-gradient(circle at bottom right, rgba(248, 217, 184, 0.5), transparent 60%);
  z-index: -1;
  transform: rotate(-8deg);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.faq-list {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  gap: 16px;
}

.faq-list details {
  padding: 20px 24px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(203, 174, 133, 0.3);
  box-shadow: 0 12px 28px rgba(117, 91, 64, 0.14);
}

.faq-list summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text-strong);
}

.faq-list p {
  margin: 12px 0 0;
  line-height: 1.6;
}

.site-footer {
  padding: 32px clamp(20px, 6vw, 48px);
  color: var(--text-muted);
  font-size: 14px;
  border-top: 1px solid rgba(203, 174, 133, 0.25);
  background: rgba(255, 253, 248, 0.92);
}

.footer-inner {
  width: min(var(--max-width), 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-company {
  font-weight: 600;
  color: var(--text-strong);
}

.footer-company:hover {
  color: var(--color-primary);
}

.footer-copy {
  color: var(--text-muted);
}

@media (max-width: 880px) {
  .header-inner {
    flex-wrap: wrap;
    gap: 16px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
  }

  .cta-link {
    order: 2;
  }

  .hero {
    padding-top: clamp(60px, 8vw, 100px);
    grid-template-columns: 1fr;
  }

  .hero-visual {
    justify-content: center;
  }

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

  .cta-form button {
    width: 100%;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .about-content {
    padding: clamp(24px, 6vw, 40px);
  }

  .store-badge img {
    height: 52px;
  }
}

@media (max-width: 600px) {
  .site-nav {
    gap: 16px;
  }

  .floating-tag {
    position: static;
    margin-top: 16px;
  }

  .brand-name {
    font-size: 18px;
  }

  .footer-inner {
    align-items: flex-start;
  }

  .reward-card {
    padding: clamp(24px, 6vw, 36px);
  }

  .store-badge img {
    height: 48px;
  }
}