:root {
  color-scheme: light;
  font-family: Tahoma, Arial, sans-serif;
  background: #f7faf9;
  color: #172554;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: linear-gradient(135deg, #fff8f0, #eaf4f4);
  color: #172554;
  line-height: 1.9;
}

a { color: #0f766e; }

.site-header {
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid #dbe8e6;
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-nav {
  align-items: center;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1080px;
  min-height: 64px;
  padding: 8px 20px;
}

.brand {
  align-items: center;
  color: #1f3c88;
  display: flex;
  font-size: 18px;
  font-weight: 800;
  gap: 10px;
  text-decoration: none;
}

.brand img { border-radius: 8px; height: 40px; width: 40px; }
.nav-links { display: flex; flex-wrap: wrap; gap: 16px; }
.nav-links a { color: #334155; font-size: 14px; font-weight: 700; text-decoration: none; }

main { margin: 0 auto; max-width: 1080px; padding: 36px 20px 72px; }

.hero {
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1fr) 240px;
  align-items: center;
  min-height: 410px;
}

.hero h1 { font-size: clamp(32px, 6vw, 54px); line-height: 1.35; margin: 0 0 16px; }
.hero p { color: #475569; font-size: 18px; max-width: 720px; }
.hero img { border-radius: 8px; display: block; max-width: 240px; width: 100%; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.button {
  align-items: center;
  background: #1f3c88;
  border: 1px solid #1f3c88;
  border-radius: 8px;
  color: #fff;
  display: inline-flex;
  font-weight: 800;
  min-height: 46px;
  padding: 8px 18px;
  text-decoration: none;
}
.button.secondary { background: #fff; color: #1f3c88; }

.section { border-top: 1px solid #dbe8e6; padding: 34px 0; }
.section h2 { font-size: 28px; margin: 0 0 10px; }
.section > p { color: #475569; max-width: 820px; }

.breadcrumbs {
  align-items: center;
  color: #64748b;
  display: flex;
  flex-wrap: wrap;
  font-size: 14px;
  gap: 8px;
  margin-bottom: 24px;
}

.breadcrumbs a { font-weight: 700; text-decoration: none; }
.breadcrumbs a::after { color: #94a3b8; content: "‹"; margin-right: 8px; }

.article { margin: 0 auto; max-width: 900px; }
.article h1 { font-size: clamp(32px, 6vw, 50px); line-height: 1.4; margin: 0 0 16px; }
.article h2 { border-top: 1px solid #dbe8e6; font-size: 27px; margin: 36px 0 10px; padding-top: 30px; }
.article p { color: #475569; font-size: 17px; }
.article .lead { color: #334155; font-size: 20px; }
.article .grid { margin-bottom: 30px; }

.level-list { display: grid; gap: 12px; margin-top: 20px; }
.level-list section {
  align-items: center;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid #dbe8e6;
  border-radius: 8px;
  display: grid;
  gap: 16px;
  grid-template-columns: 70px minmax(0, 1fr);
  padding: 16px;
}
.level-list strong { color: #0f766e; font-size: 24px; text-align: center; }
.level-list h3 { margin: 0; }
.level-list p { font-size: 15px; margin: 2px 0 0; }

.grid { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 20px; }
.item {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid #dbe8e6;
  border-radius: 8px;
  padding: 18px;
}
.item h3 { margin: 0 0 6px; }
.item p { color: #64748b; margin: 0; }
.item.recommended { border-color: #0f766e; box-shadow: inset 0 3px 0 #0f766e; }
.badge { color: #0f766e; font-size: 13px; font-weight: 800; }

.notice {
  background: #fff7e6;
  border-right: 4px solid #d97706;
  border-radius: 8px;
  color: #7c4a03;
  margin-top: 18px;
  padding: 14px 16px;
}

.site-footer { border-top: 1px solid #dbe8e6; color: #64748b; padding: 28px 20px; text-align: center; }
.app-legal-links {
  align-items: center;
  background: rgba(255, 255, 255, 0.94);
  border-top: 1px solid #dbe8e6;
  bottom: 0;
  display: flex;
  font-family: Tahoma, Arial, sans-serif;
  font-size: 12px;
  gap: 16px;
  justify-content: center;
  left: 0;
  padding: 7px 12px;
  position: fixed;
  right: 0;
  z-index: 8;
}
.app-legal-links a { color: #475569; text-decoration: none; }

@media (max-width: 700px) {
  .site-nav { align-items: flex-start; flex-direction: column; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero img { max-width: 150px; order: -1; }
  .grid { grid-template-columns: 1fr; }
  .article h1 { font-size: 34px; }
  .article .lead { font-size: 18px; }
}