:root {
  --accent: #f6821f;
  --bg: #ffffff;
  --text: #333333;
  --muted: #777777;
  --border: #e5e5e5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

.site-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px;
  border-bottom: 3px solid var(--accent);
}

.logo {
  width: 48px;
  height: 48px;
}

.site-header h1 {
  margin: 0;
  font-size: 1.4rem;
}

.content {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px;
}

.content section {
  margin-bottom: 32px;
}

.content h2 {
  font-size: 1.15rem;
  border-left: 4px solid var(--accent);
  padding-left: 10px;
}

.content ul {
  padding-left: 20px;
}

.sample-image {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
}

#reload-btn {
  padding: 8px 16px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.95rem;
}

#reload-btn:hover {
  opacity: 0.9;
}

.site-footer {
  padding: 16px 24px;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}