/* Research Brand Template V1.0 candidate — sourced from existing IPVI brand-system.css */
:root {
  --xiaotu-purple: #6d3bff;
  --xiaotu-purple-deep: #1f153d;
  --xiaotu-purple-mid: #4d2bd0;
  --xiaotu-purple-soft: #f5f1ff;
  --xiaotu-purple-mist: #eee8fb;
  --xiaotu-purple-line: rgba(109, 59, 255, 0.18);
  --xiaotu-paper: #fffdf7;
  --xiaotu-cream: #faf6ed;
  --xiaotu-ink: #201539;
  --xiaotu-body: #3b3351;
  --xiaotu-muted: #756d8a;
  --xiaotu-white: #ffffff;
  --xiaotu-shadow: rgba(55, 32, 126, 0.16);
  --xiaotu-soft-shadow: rgba(55, 32, 126, 0.08);
  --font-cn-title: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  --font-cn-body: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  --font-en: Inter, Arial, Helvetica, sans-serif;
}