/* ============ 设计令牌 + 重置 ============ */
:root {
  --primary: #2c6b96;
  --primary-2: #6BA5D7;
  --accent: #B23A2A;
  --gold: #D9A441;
  --red: #c0392b;
  --bg: #f5f7fa;
  --card: #ffffff;
  --text: #22303c;
  --text-2: #5b6b7a;
  --border: #e6ebf0;
  --shadow: 0 6px 20px rgba(20, 40, 70, .08);
  --radius: 16px;
  --topbar-h: 56px;
  --panel-w: 360px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
img { display: block; max-width: 100%; }