:root{
  --yyc-green-950:#0b2f28;--yyc-green-900:#0d3d33;--yyc-green-800:#0f513f;--yyc-green-700:#12664f;--yyc-green-600:#18765d;
  --yyc-green-200:#bfd8ce;--yyc-green-100:#e7f1ed;--yyc-gold-500:#c89e4f;--yyc-gold-100:#f6ead0;
  --yyc-ink:#123a31;--yyc-text:#294b43;--yyc-muted:#667d75;--yyc-line:#cfded7;--yyc-soft:#f5f8f6;--yyc-cream:#fbf7ee;--yyc-white:#fff;
  --yyc-font:Inter,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Noto Sans SC",ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --yyc-space-1:.25rem;--yyc-space-2:.5rem;--yyc-space-3:.75rem;--yyc-space-4:1rem;--yyc-space-5:1.25rem;--yyc-space-6:1.5rem;--yyc-space-8:2rem;--yyc-space-10:2.5rem;--yyc-space-12:3rem;
  --yyc-r-sm:10px;--yyc-r-md:14px;--yyc-r-lg:20px;--yyc-r-pill:999px;
  --yyc-shadow-sm:0 8px 24px rgba(10,61,48,.06);--yyc-shadow-md:0 18px 48px rgba(10,61,48,.10);
  --yyc-focus:0 0 0 3px rgba(24,118,93,.22);--yyc-max:1280px;
}