:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #17201c;
  background: #f5f7f6;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  background: #f5f7f6;
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 24px;
}

.intro {
  width: min(100%, 520px);
  padding: 56px 40px;
  text-align: center;
  background: #ffffff;
  border: 1px solid #e2e8e5;
  border-radius: 24px;
  box-shadow: 0 18px 50px rgba(30, 52, 42, 0.08);
}

.mark {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin: 0 auto 24px;
  color: #ffffff;
  font-size: 24px;
  font-weight: 700;
  background: #23875f;
  border-radius: 16px;
}

.label {
  width: fit-content;
  margin: 0 auto 14px;
  padding: 5px 12px;
  color: #23875f;
  font-size: 13px;
  font-weight: 600;
  background: #eaf5f0;
  border-radius: 999px;
}

h1 {
  margin: 0;
  font-size: clamp(32px, 8vw, 48px);
  line-height: 1.2;
  letter-spacing: 0.08em;
}

.summary {
  margin: 18px 0 0;
  color: #64716b;
  font-size: 16px;
  line-height: 1.8;
}

.guide {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 28px;
  padding: 14px 18px;
  color: #244c3b;
  font-size: 14px;
  font-weight: 600;
  background: #f2f8f5;
  border: 1px solid #dcebe4;
  border-radius: 14px;
}

.guide-dot {
  width: 4px;
  height: 4px;
  background: #7a9d8e;
  border-radius: 50%;
}

.scope {
  margin: 20px 0 0;
  color: #8a9690;
  font-size: 12px;
  line-height: 1.6;
}

@media (max-width: 480px) {
  .intro {
    padding: 44px 24px;
    border-radius: 20px;
  }

  .guide {
    flex-direction: column;
    gap: 6px;
  }
}