:root {
  --background: #f5f8fc;
  --surface: #ffffff;
  --surface-soft: #eef4fb;
  --text: #142033;
  --muted: #607086;
  --primary: #1667d9;
  --primary-dark: #0e4ea9;
  --border: #dce5f0;
  --shadow: 0 18px 45px rgba(26, 55, 92, 0.1);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--background);
  line-height: 1.65;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 750;
  font-size: 1.08rem;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: white;
  font-weight: 800;
  font-size: 1.2rem;
  background: linear-gradient(145deg, #0b4ea2, #2388f2);
  box-shadow: 0 8px 22px rgba(22, 103, 217, 0.25);
}

nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 0.95rem;
}

nav a {
  color: var(--muted);
  font-weight: 600;
}

nav a:hover {
  color: var(--primary);
  text-decoration: none;
}

.hero {
  padding: 96px 0 72px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 60px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 18px;
  padding: 7px 13px;
  border: 1px solid #c9dcf5;
  border-radius: 999px;
  color: var(--primary-dark);
  background: #eaf3ff;
  font-weight: 700;
  font-size: 0.83rem;
  letter-spacing: 0.02em;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.8rem, 7vw, 5.6rem);
  letter-spacing: -0.055em;
}

h2 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.035em;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.15rem;
}

.hero-copy {
  max-width: 700px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.18rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 13px;
  font-weight: 700;
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

.button:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.button-primary {
  color: white;
  background: var(--primary);
  box-shadow: 0 10px 24px rgba(22, 103, 217, 0.24);
}

.button-secondary {
  color: var(--text);
  background: white;
  border: 1px solid var(--border);
}

.hero-card {
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: 30px;
  background: linear-gradient(160deg, #ffffff, #eaf3ff);
  box-shadow: var(--shadow);
}

.hero-card-title {
  margin-bottom: 20px;
  font-weight: 750;
  font-size: 1.2rem;
}

.hero-list {
  display: grid;
  gap: 14px;
}

.hero-list-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px;
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.76);
}

.check {
  width: 25px;
  height: 25px;
  flex: 0 0 25px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: white;
  background: var(--primary);
  font-size: 0.8rem;
  font-weight: 800;
}

.section {
  padding: 72px 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.section-heading p,
.card p,
.content-page p,
.content-page li {
  color: var(--muted);
}

.grid-three {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 8px 24px rgba(26, 55, 92, 0.05);
}

.card-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 13px;
  color: var(--primary-dark);
  background: var(--surface-soft);
  font-weight: 800;
}

.link-panel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.link-card {
  display: block;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  background: var(--surface);
}

.link-card:hover {
  border-color: #aac8ed;
  box-shadow: var(--shadow);
  text-decoration: none;
}

.link-card span {
  display: block;
  margin-top: 7px;
  color: var(--muted);
}

.content-page {
  max-width: 860px;
  margin: 0 auto;
  padding: 72px 0 96px;
}

.content-page h1 {
  margin-bottom: 16px;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
}

.content-page h2 {
  margin-top: 48px;
  font-size: 1.65rem;
}

.content-page h3 {
  margin-top: 30px;
}

.content-page ul,
.content-page ol {
  padding-left: 24px;
}

.notice {
  margin: 28px 0;
  padding: 20px 22px;
  border-left: 4px solid var(--primary);
  border-radius: 12px;
  background: var(--surface-soft);
}

.site-footer {
  padding: 38px 0;
  border-top: 1px solid var(--border);
  background: white;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

@media (max-width: 820px) {
  .hero {
    padding-top: 64px;
  }

  .hero-grid,
  .grid-three,
  .link-panel {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 36px;
  }

  nav {
    gap: 14px;
    font-size: 0.86rem;
  }

  nav a:first-child {
    display: none;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .header-inner {
    min-height: 64px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
  }

  h1 {
    font-size: 2.75rem;
  }

  .actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .footer-inner {
    flex-direction: column;
  }
}