:root {
  color-scheme: light;
  --brand: #0b664f;
  --brand-soft: #e8f2ee;
  --accent: #ef7f28;
  --ink: #17352d;
  --muted: #61736d;
  --line: #dfe8e4;
  --paper: #ffffff;
  --page: #f4f7f5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Microsoft YaHei", sans-serif;
  line-height: 1.75;
}

a {
  color: var(--brand);
}

.shell {
  width: min(920px, calc(100% - 32px));
  margin: 32px auto 64px;
}

.hero,
.card {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--paper);
  box-shadow: 0 14px 34px rgba(23, 53, 45, 0.07);
}

.hero {
  padding: 34px;
  color: white;
  border: 0;
  background: linear-gradient(135deg, #075941, #18765d);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border-radius: 16px;
  color: var(--accent);
  background: white;
  font-size: 28px;
  font-weight: 800;
}

h1,
h2 {
  line-height: 1.35;
}

h1 {
  margin: 22px 0 8px;
  font-size: clamp(28px, 5vw, 42px);
}

h2 {
  margin: 30px 0 10px;
  font-size: 20px;
}

.hero p,
.updated {
  margin: 0;
  opacity: 0.82;
}

.card {
  margin-top: 18px;
  padding: 30px 34px;
}

.notice {
  padding: 16px 18px;
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  background: #fff7ef;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 12px;
  color: white;
  background: var(--brand);
  font-weight: 700;
  text-decoration: none;
}

.button.secondary {
  color: var(--brand);
  background: var(--brand-soft);
}

ul {
  padding-left: 22px;
}

footer {
  padding: 28px 0;
  color: var(--muted);
  text-align: center;
  font-size: 14px;
}

@media (max-width: 600px) {
  .shell {
    width: min(100% - 20px, 920px);
    margin-top: 10px;
  }

  .hero,
  .card {
    border-radius: 17px;
  }

  .hero,
  .card {
    padding: 24px 20px;
  }
}