body {
  font-family: 'Noto Serif SC', 'PingFang SC', 'Microsoft YaHei', serif;
  background: var(--dark);
  color: var(--text);
  line-height: 1.8;
  min-height: 100vh;
  padding: 40px 20px;
}
:root {
  --primary: #8a7050;
  --accent: #a08040;
  --dark: #f5f0e8;
  --dark-card: #ffffff;
  --text: #5a5045;
  --text-light: #8a7e70;
  --text-bright: #2a221a;
  --border: #d8cfc0;
}
html.dark {
  --primary: #b8a080;
  --accent: #c9a961;
  --dark: #0d0b09;
  --dark-card: #161210;
  --text: #b0a898;
  --text-light: #8a7e70;
  --text-bright: #e8ddd0;
  --border: #2a221a;
}
.container { max-width: 800px; margin: 0 auto; }
.file-name-bar {
  background: var(--dark-card);
  padding: 20px;
  border-radius: 12px;
  margin-bottom: 20px;
  border: 1px solid var(--border);
}
.file-name-bar .name {
  font-size: 18px;
  color: var(--text-bright);
}
.file-name-bar .meta {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 6px;
}
.text-content {
  background: var(--dark-card);
  padding: 30px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-size: 16px;
  line-height: 2.2;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
}
.action-bar {
  text-align: center;
  margin-top: 20px;
}
.action-bar a {
  display: inline-block;
  padding: 10px 24px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--dark);
  border-radius: 8px;
  text-decoration: none;
  font-size: 14px;
}
.back-btn {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--primary);
  text-decoration: none;
}