*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  color-scheme: light;
  --bg: #fff7ea;
  --bg-alt: #fff2d6;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #6b7280;
  --primary: #ff6b6b;
  --primary-dark: #e65c5c;
  --accent: #4d9de0;
  --accent-soft: #e8f2fb;
  --border: #ffe0b2;
  --shadow: 0 20px 50px rgba(31, 41, 51, 0.12);
}

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP",
    "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

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

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

.hero {
  padding: 32px 6vw 80px;
  background: linear-gradient(135deg, #fff7ea 0%, #fff2d6 45%, #ffe9d4 100%);
  position: relative;
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 107, 107, 0.1);
  z-index: 0;
}

.hero::before {
  width: 420px;
  height: 420px;
  top: -140px;
  right: -120px;
}

.hero::after {
  width: 320px;
  height: 320px;
  bottom: -120px;
  left: -80px;
  background: rgba(77, 157, 224, 0.12);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: relative;
  z-index: 1;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}

.logo {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(255, 107, 107, 0.2);
}

.nav-links {
  display: flex;
  gap: 18px;
  font-size: 14px;
  color: var(--muted);
}

.nav-links a {
  padding: 8px 12px;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-links a:hover {
  background: rgba(255, 107, 107, 0.12);
  color: var(--primary-dark);
}

.hero-content {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 36px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(77, 157, 224, 0.15);
  color: var(--accent);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}

.hero-text h1 {
  font-size: clamp(32px, 3.2vw, 52px);
  margin: 0 0 16px;
}

.lead {
  color: var(--muted);
  font-size: 18px;
  margin-bottom: 24px;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 12px;
  font-weight: 600;
  border: 2px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button.primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 20px rgba(255, 107, 107, 0.25);
}

.button.primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.button.ghost {
  background: #fff;
  border-color: var(--border);
  color: var(--text);
}

.button.ghost:hover {
  box-shadow: 0 8px 16px rgba(31, 41, 51, 0.1);
  transform: translateY(-2px);
}

.meta {
  font-size: 13px;
  color: var(--muted);
}

.hero-card {
  background: var(--card);
  padding: 24px;
  border-radius: 24px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 224, 178, 0.6);
}

.card-header {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
}

.steps {
  margin: 0 0 20px 20px;
  padding: 0;
  color: var(--text);
}

.steps li {
  margin-bottom: 8px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 12px;
}

.stat-number {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  display: block;
  font-size: 12px;
  color: var(--muted);
}

.section {
  padding: 72px 6vw;
}

.section.alt {
  background: var(--bg-alt);
}

.section-header {
  max-width: 720px;
  margin-bottom: 36px;
}

.eyebrow {
  font-size: 13px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-header h2 {
  font-size: clamp(24px, 2.4vw, 36px);
  margin: 0 0 12px;
}

.section-lead {
  color: var(--muted);
  font-size: 16px;
  margin: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--card);
  border-radius: 20px;
  padding: 20px;
  border: 1px solid rgba(255, 224, 178, 0.6);
  box-shadow: 0 12px 24px rgba(31, 41, 51, 0.08);
}

.feature-icon {
  font-size: 28px;
  margin-bottom: 12px;
}

.feature-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(255, 224, 178, 0.7);
}

.timeline-step {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.timeline-item h3 {
  margin: 0 0 6px;
}

.timeline-item p {
  margin: 0;
  color: var(--muted);
}

.pill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.pill {
  background: var(--card);
  border-radius: 999px;
  padding: 12px 18px;
  border: 1px solid rgba(255, 224, 178, 0.7);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.callout {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
  background: #fff;
  border-radius: 20px;
  padding: 20px;
  border: 1px solid rgba(255, 224, 178, 0.7);
}

.callout h3 {
  margin: 0 0 8px;
}

.callout p {
  margin: 0;
  color: var(--muted);
}

.callout-badge {
  padding: 10px 16px;
  border-radius: 12px;
  background: rgba(255, 107, 107, 0.1);
  color: var(--primary-dark);
  font-weight: 700;
}

.download-card {
  background: var(--card);
  border-radius: 24px;
  padding: 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 1px solid rgba(255, 224, 178, 0.6);
  box-shadow: var(--shadow);
}

.download-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.download-left img {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  box-shadow: 0 10px 24px rgba(255, 107, 107, 0.25);
}

.download-title {
  margin: 0;
  font-weight: 700;
  font-size: 18px;
}

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

.faq {
  display: grid;
  gap: 14px;
}

.faq-item {
  padding: 18px;
  border-radius: 18px;
  background: var(--card);
  border: 1px solid rgba(255, 224, 178, 0.6);
}

.faq-item h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.faq-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.footer {
  background: #1f2933;
  color: #f9fafb;
  padding: 40px 6vw 24px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-brand img {
  width: 52px;
  height: 52px;
  border-radius: 14px;
}

.footer-title {
  margin: 0;
  font-weight: 700;
}

.footer-subtitle {
  margin: 0;
  color: rgba(249, 250, 251, 0.7);
  font-size: 13px;
}

.footer-contact {
  font-size: 14px;
  color: #fff2d6;
  background: rgba(255, 255, 255, 0.08);
  padding: 10px 14px;
  border-radius: 10px;
}

.footer-note {
  margin: 0;
  font-size: 12px;
  color: rgba(249, 250, 251, 0.6);
  text-align: center;
}

@media (max-width: 900px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .hero-content {
    margin-top: 32px;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 24px 5vw 60px;
  }

  .nav-links {
    gap: 8px;
  }

  .cta {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .download-card {
    flex-direction: column;
    align-items: flex-start;
  }
}