:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #1f2330;
  --muted: #6b7280;
  --accent: #4f46e5;
  --accent-soft: #eef2ff;
  --border: #e5e7eb;
  --shadow: 0 4px 24px rgba(31, 35, 48, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1117;
    --card: #181b24;
    --text: #e8eaf0;
    --muted: #9aa1b1;
    --accent: #818cf8;
    --accent-soft: #232846;
    --border: #262a36;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 680px;
  margin: 0 auto;
  padding: 64px 20px 32px;
}

.hero {
  text-align: center;
  margin-bottom: 40px;
}

.avatar {
  width: 88px;
  height: 88px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 40px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  box-shadow: var(--shadow);
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(2rem, 6vw, 2.75rem);
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.card h2 {
  margin: 0 0 12px;
  font-size: 1.2rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.card p + p {
  margin-top: 0.75em;
}

.focus {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.focus li {
  padding: 16px;
  border-radius: 12px;
  background: var(--accent-soft);
}

.focus h3 {
  margin: 0 0 4px;
  font-size: 1rem;
  color: var(--accent);
}

.focus p {
  font-size: 0.925rem;
}

.work {
  list-style: none;
  margin: 0;
  padding: 0;
}

.work li {
  padding: 14px 0 14px 16px;
  border-left: 3px solid var(--accent);
}

.work li + li {
  margin-top: 12px;
}

.work h3 {
  margin: 0 0 4px;
  font-size: 1rem;
}

.work p {
  font-size: 0.925rem;
}

.contact {
  list-style: none;
  margin: 0;
  padding: 0;
}

.contact li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.contact li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.label {
  display: inline-block;
  min-width: 64px;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
}

.contact a {
  color: var(--text);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.contact a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.875rem;
  margin-top: 40px;
}

@media (max-width: 480px) {
  .container {
    padding-top: 40px;
  }
  .card {
    padding: 22px 18px;
  }
  .focus {
    grid-template-columns: 1fr;
  }
}