:root {
  --primary: #0066CC;
  --primary-dark: #004fa3;
  --primary-light: #e6f0fb;
  --text: #1a2b3c;
  --text-muted: #5a6b7c;
  --bg: #ffffff;
  --bg-alt: #f6f9fc;
  --border: #e3e8ee;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.08em;
  color: var(--primary);
}

.global-nav {
  display: flex;
  gap: 32px;
}

.global-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

/* ===== Hero ===== */
.hero {
  background:
    radial-gradient(circle at 20% 0%, rgba(0, 102, 204, 0.08), transparent 60%),
    radial-gradient(circle at 100% 100%, rgba(0, 102, 204, 0.06), transparent 50%),
    var(--bg);
  padding: 100px 0 120px;
  text-align: center;
}

.hero-visual {
  max-width: 880px;
  margin: 0 auto 40px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(15, 40, 70, 0.15);
}

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

.hero-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--primary);
  background: var(--primary-light);
  padding: 8px 18px;
  border-radius: 999px;
  margin: 0 0 28px;
}

.hero-title {
  font-size: 48px;
  line-height: 1.4;
  margin: 0 0 28px;
  letter-spacing: 0.02em;
  font-weight: 700;
}

.hero-subtext {
  font-size: 16px;
  color: var(--text-muted);
  margin: 0 0 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 6px 20px rgba(0, 102, 204, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 102, 204, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary-light);
}

.btn-large {
  padding: 18px 48px;
  font-size: 17px;
}

/* ===== Sections common ===== */
.section-eyebrow {
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--primary);
  margin: 0 0 12px;
}

.section-eyebrow-light {
  color: rgba(255, 255, 255, 0.8);
}

.section-title {
  text-align: center;
  font-size: 34px;
  line-height: 1.5;
  margin: 0 0 60px;
  font-weight: 700;
}

.section-title-light {
  color: #ffffff;
}

/* ===== Strengths ===== */
.strengths {
  padding: 100px 0;
  background: var(--bg-alt);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px 32px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(15, 40, 70, 0.08);
  border-color: var(--primary-light);
}

.card-icon {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.card-title {
  font-size: 20px;
  margin: 0 0 14px;
  font-weight: 700;
}

.card-text {
  font-size: 14.5px;
  color: var(--text-muted);
  margin: 0;
}

/* ===== Stats ===== */
.stats {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #ffffff;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat {
  text-align: center;
  padding: 24px 12px;
}

.stat-number {
  font-size: 56px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
}

.stat-unit {
  font-size: 22px;
  font-weight: 600;
  margin-left: 4px;
}

.stat-label {
  margin: 14px 0 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.05em;
}

/* ===== CTA ===== */
.cta {
  padding: 100px 0;
  background: var(--bg);
}

.cta-inner {
  text-align: center;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 72px 40px;
}

.cta-title {
  font-size: 30px;
  margin: 0 0 20px;
  font-weight: 700;
}

.cta-text {
  font-size: 16px;
  color: var(--text-muted);
  margin: 0 0 36px;
}

.cta-note {
  margin: 18px 0 0;
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== Footer ===== */
.site-footer {
  background: #0f1d2e;
  color: rgba(255, 255, 255, 0.6);
  padding: 28px 0;
  text-align: center;
  font-size: 13px;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero {
    padding: 72px 0 88px;
  }
  .hero-title {
    font-size: 32px;
  }
  .section-title {
    font-size: 26px;
    margin-bottom: 44px;
  }
  .cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 16px;
  }
  .stat-number {
    font-size: 44px;
  }
  .cta-inner {
    padding: 48px 24px;
  }
  .cta-title {
    font-size: 22px;
  }
}

@media (max-width: 560px) {
  .global-nav {
    gap: 18px;
  }
  .global-nav a {
    font-size: 13px;
  }
  .hero-title {
    font-size: 26px;
  }
  .hero-subtext br {
    display: none;
  }
  .btn {
    padding: 12px 24px;
    font-size: 14px;
  }
  .btn-large {
    padding: 16px 32px;
    font-size: 15px;
  }
}