:root {
  --green: #2f7a4f;
  --green-dark: #215c3a;
  --green-soft: #e3f2e9;
  --bg: #f4faf6;
  --text: #1f2d27;
  --muted: #52645b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

.hero {
  padding: 56px 24px 40px;
  text-align: center;
  background: linear-gradient(180deg, var(--green-soft), var(--bg));
  border-bottom: 1px solid #d5e8dd;
}

.avatar {
  width: 160px;
  max-width: 200px;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid #ffffff;
  box-shadow: 0 6px 20px rgba(47, 122, 79, 0.22);
}

.hero h1 {
  margin: 18px 0 6px;
  font-size: 2rem;
  letter-spacing: 0.06em;
  color: var(--green-dark);
}

.tagline {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.container {
  max-width: 820px;
  margin: 0 auto;
  padding: 8px 24px 56px;
}

.section {
  margin-top: 40px;
  padding: 28px;
  background-color: #ffffff;
  border: 1px solid #dce9e1;
  border-radius: 14px;
  box-shadow: 0 2px 10px rgba(47, 122, 79, 0.06);
}

.section h2 {
  margin: 0 0 16px;
  padding-left: 12px;
  font-size: 1.375rem;
  color: var(--green-dark);
  border-left: 4px solid var(--green);
}

.section p {
  margin: 0 0 12px;
}

.section p:last-child {
  margin-bottom: 0;
}

.card-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.card {
  padding: 18px;
  background-color: var(--green-soft);
  border: 1px solid #cbe4d6;
  border-radius: 10px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(47, 122, 79, 0.16);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.0625rem;
  color: var(--green-dark);
}

.card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--muted);
}

a {
  color: var(--green);
  text-decoration: underline;
  text-underline-offset: 3px;
  word-break: break-all;
}

a:hover {
  color: var(--green-dark);
}

@media (max-width: 600px) {
  .hero {
    padding: 40px 18px 30px;
  }

  .hero h1 {
    font-size: 1.625rem;
  }

  .container {
    padding: 4px 16px 40px;
  }

  .section {
    margin-top: 28px;
    padding: 20px;
  }

  .section h2 {
    font-size: 1.1875rem;
  }

  .avatar {
    width: 130px;
  }
}