:root{--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:48px;--space-8:64px;--radius-sm:8px;--radius:14px;--radius-lg:22px;--radius-pill:999px;--radius-full:50%;--shadow-sm:0 1px 2px rgba(18,23,42,0.06);--shadow:0 6px 24px rgba(18,23,42,0.08);--shadow-lg:0 18px 48px rgba(18,23,42,0.12);--maxw:1140px;--header-h:56px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;--breakpoint-xs:480px;--breakpoint-sm:768px;--breakpoint-md:1024px;--breakpoint-lg:1280px;--breakpoint-xl:1440px;--z-header:100;--z-dropdown:1000;--z-sticky:1020;--z-fixed:1030;--z-backdrop:1040;--z-modal:1050;--z-popover:1060;--z-tooltip:1070;--z-toast:1080;--text-xs:12px;--text-sm:14px;--text-base:16px;--text-lg:20px;--text-xl:24px;--text-2xl:32px;--scrollbar-thumb:rgba(100,116,139,0.45);--scrollbar-thumb-hover:rgba(100,116,139,0.7);--scrollbar-track:transparent;--dur-fast:150ms;--dur-base:200ms;--dur-slow:300ms;--ease:cubic-bezier(0.4,0,0.2,1)}html{scrollbar-color:var(--scrollbar-thumb) var(--scrollbar-track);scrollbar-width:thin}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--scrollbar-track)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:8px}::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover)}[data-theme="dark"]{--shadow-sm:0 1px 2px rgba(0,0,0,0.4);--shadow:0 6px 24px rgba(0,0,0,0.45);--shadow-lg:0 18px 48px rgba(0,0,0,0.5);--scrollbar-thumb:rgba(148,163,184,0.35);--scrollbar-thumb-hover:rgba(148,163,184,0.6)}