:root{
/* 圆角偏大 (~22% of element height) */
--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:22px;--radius-2xl:28px;--radius-pill:999px;
/* Shadows */
--shadow-card:0 1px 2px rgba(51,54,58,.06),0 8px 24px rgba(51,54,58,.08);
--shadow-float:0 4px 12px rgba(51,54,58,.10),0 16px 40px rgba(51,54,58,.14);
--shadow-btn:0 2px 8px rgba(255,119,15,.30);
/* 玻璃拟态 Glass (dark surfaces) */
--glass-bg:rgba(255,255,255,.07);--glass-border:1px solid rgba(255,255,255,.18);/* @kind other */--glass-blur:blur(16px);/* @kind other */
--glass-highlight:inset 0 1px 0 rgba(255,255,255,.35);/* @kind shadow */
/* 辉光 Glow */
--glow-soft:0 0 20px rgba(255,119,15,.35);--glow-strong:0 0 12px rgba(255,166,77,.65),0 0 36px rgba(255,119,15,.45);
--glow-ring:0 0 0 1.5px rgba(255,210,160,.75),0 0 18px rgba(255,140,40,.55);
/* 渐晕 Vignette (backgrounds only, never text) */
--bg-vignette:radial-gradient(120% 90% at 50% 40%,#8A3E00 0%,#4A2100 55%,#221000 100%);
--bg-orange-face:radial-gradient(130% 110% at 50% 0%,#FF8F33 0%,#FF770F 55%,#E86905 100%);
/* 浅色顶部导航条 Nav（规范允许的第二处模糊；2026-09-05 接码提出、总后台补） */
--nav-bg:rgba(255,255,255,.82);--nav-blur:blur(12px);/* @kind other */
/* Motion */
--ease-out:cubic-bezier(.22,.9,.32,1);/* @kind other */--dur-fast:120ms;/* @kind other */--dur-base:200ms;/* @kind other */--dur-slow:320ms;/* @kind other */
}