:root {
  color-scheme: light;

  /* Canvas */
  --platform-canvas: #f2f0ef;
  --platform-canvas-secondary: #dce1e5;
  --platform-surface: rgba(248, 249, 249, 0.38);

  /* Text */
  --platform-text-primary: #202227;
  --platform-text-secondary: #626873;
  --platform-text-muted: #818690;

  /* Glass */
  --glass-clear-bg: linear-gradient(132deg, rgba(255, 255, 255, 0.21), rgba(244, 247, 249, 0.065) 62%, rgba(219, 225, 230, 0.085));
  --glass-frosted-bg: linear-gradient(138deg, rgba(255, 255, 255, 0.3), rgba(239, 243, 246, 0.11) 58%, rgba(204, 214, 222, 0.13));
  --glass-dense-bg: linear-gradient(138deg, rgba(255, 255, 255, 0.46), rgba(238, 242, 245, 0.24) 58%, rgba(206, 215, 222, 0.22));
  --glass-control-bg: linear-gradient(145deg, rgba(255, 255, 255, 0.17), rgba(239, 243, 247, 0.035) 58%, rgba(199, 209, 218, 0.075));
  --glass-dark-bg: linear-gradient(145deg, rgba(35, 38, 46, 0.76), rgba(17, 20, 27, 0.68) 58%, rgba(47, 41, 45, 0.7));
  --glass-clear-blur: 15px;
  --glass-frosted-blur: 27px;
  --glass-dense-blur: 34px;
  --glass-control-blur: 8px;
  --glass-highlight: rgba(255, 255, 255, 0.88);
  --glass-border: rgba(255, 255, 255, 0.68);
  --glass-bottom-edge: rgba(41, 48, 58, 0.18);
  --glass-shadow: 0 26px 68px rgba(44, 49, 59, 0.105);

  /* Actions */
  --action-primary: rgba(27, 30, 37, 0.78);
  --action-primary-hover: rgba(38, 42, 50, 0.82);
  --action-primary-active: rgba(18, 21, 27, 0.86);
  --action-secondary: rgba(255, 255, 255, 0.14);
  --action-disabled: rgba(102, 107, 116, 0.35);

  /* Form */
  --input-background: rgba(255, 255, 255, 0.12);
  --input-border: rgba(255, 255, 255, 0.72);
  --input-border-focus: rgba(67, 73, 82, 0.72);
  --input-error: #8f3f3a;
  --input-success: #4e7159;

  /* Typography */
  --font-latin: Inter, Geist, "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-zh: "Noto Sans SC", "Microsoft YaHei UI", "PingFang SC", sans-serif;
  --font-display-platform: Georgia, "Times New Roman", Times, serif;
  --display-size: clamp(3.5rem, 7vw, 7.25rem);
  --h1-size: clamp(2.45rem, 5vw, 5.4rem);
  --h2-size: clamp(1.9rem, 3.4vw, 3.8rem);
  --h3-size: clamp(1.08rem, 1.6vw, 1.42rem);
  --body-large-size: clamp(1.04rem, 1.35vw, 1.24rem);
  --body-size: 1rem;
  --caption-size: 0.78rem;

  /* Geometry */
  --radius-small: 10px;
  --radius-medium: 16px;
  --radius-large: 24px;
  --radius-panel: 34px;
  --radius-pill: 999px;

  /* Layout */
  --page-width: 1260px;
  --content-width: 760px;
  --page-gutter: clamp(16px, 4vw, 48px);
  --section-gap: clamp(72px, 10vw, 132px);

  /* Motion */
  --motion-fast: 160ms;
  --motion-standard: 320ms;
  --motion-slow: 620ms;
  --ease-standard: cubic-bezier(0.2, 0.75, 0.25, 1);
  --ease-enter: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-exit: cubic-bezier(0.7, 0, 0.84, 0);

  /* Product scope */
  --product-accent: #343941;
  --product-accent-soft: rgba(205, 183, 133, 0.2);
  --product-visual-texture: url("/assets/mai-light-field.webp?v=unified-platform-aicore-version-history-20260825-1106");
}