:root {
  --ink: #3b2408;
  --muted: #6b4a20;
  --panel: #fff8e8;
  --accent: #e98a1f;
  --sky: #68b5f8;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: var(--ink);
  background: linear-gradient(#bfe3ff, #e9f6ff 320px, #ffffff 640px);
}
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}
header { text-align: center; margin-bottom: 24px; }
header img { width: 112px; height: 112px; border-radius: 24px; box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18); }
h1 { margin: 16px 0 4px; font-size: 2rem; }
h2 { margin-top: 2rem; font-size: 1.3rem; border-bottom: 2px solid #f1d9b0; padding-bottom: 4px; }
h3 { font-size: 1.05rem; margin-bottom: 0.3rem; }
.panel {
  background: var(--panel);
  border: 2px solid #f1d9b0;
  border-radius: 18px;
  padding: 20px 24px;
}
.muted { color: var(--muted); }
a { color: #1d5e9a; }
table { width: 100%; border-collapse: collapse; margin: 0.5rem 0 1rem; font-size: 0.95rem; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid #f1d9b0; }
th { background: #fdeccd; }
footer { margin-top: 40px; text-align: center; font-size: 0.9rem; color: var(--muted); }