:root {
  color: #1c242e;
  background: #f5f7fa;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  line-height: 1.65;
}

* { box-sizing: border-box; }

body { margin: 0; }

main {
  width: calc(100% - 40px);
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(72px, 16vw, 168px) 0 80px;
}

.eyebrow {
  margin: 0 0 18px;
  color: #546a86;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

h1 {
  margin: 0;
  font-size: clamp(3.2rem, 12vw, 6.4rem);
  letter-spacing: -0.07em;
  line-height: 0.95;
}

.lead { margin: 20px 0 52px; color: #54606f; font-size: 1.1rem; }

.blog-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 24px;
  border-radius: 14px;
  background: #1c242e;
  color: #fff;
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
}

.blog-link:hover, .blog-link:focus-visible { background: #34567a; }
.blog-link:focus-visible { outline: 3px solid #7aabdd; outline-offset: 3px; }

section {
  margin-top: 52px;
  padding: 24px;
  border: 1px solid #d7dee8;
  border-radius: 14px;
  background: #fff;
}

h2 { margin: 0 0 10px; font-size: 1.1rem; }
section p { margin: 0; color: #687586; }

@media (max-width: 480px) {
  main { width: calc(100% - 32px); padding-top: 64px; }
  .lead { margin-bottom: 40px; }
  section { margin-top: 32px; }
}