:root{--color-primary:#007aff;--color-primary-dark:#0056b3;--color-background:#fff;--color-background-secondary:#f5f5f5;--color-background-tertiary:#f9f9f9;--color-text:#000;--color-text-secondary:#666;--color-text-tertiary:#999;--color-border:#e0e0e0;--color-border-light:#f0f0f0;--spacing-xs:4px;--spacing-sm:8px;--spacing-md:12px;--spacing-lg:16px;--spacing-xl:20px;--spacing-2xl:24px;--spacing-3xl:32px;--font-size-xs:12px;--font-size-sm:13px;--font-size-base:14px;--font-size-md:16px;--font-size-lg:18px;--font-size-xl:20px;--font-size-2xl:24px;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--header-height:56px;--sidebar-width:360px;--sidebar-width-mobile:100vw;--border-radius-sm:4px;--border-radius-md:6px;--border-radius-lg:8px;--border-radius-xl:12px;--border-radius-full:9999px;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow-md:0 4px 6px rgba(0,0,0,.1);--shadow-lg:0 10px 15px rgba(0,0,0,.1);--transition-fast:0.15s;--transition-base:0.2s;--transition-slow:0.3s;--z-index-dropdown:100;--z-index-modal:1000;--z-index-toast:2000}@supports (padding:max(0px)){:root{--safe-area-inset-top:env(safe-area-inset-top);--safe-area-inset-right:env(safe-area-inset-right);--safe-area-inset-bottom:env(safe-area-inset-bottom);--safe-area-inset-left:env(safe-area-inset-left)}}*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{color:var(--color-text);background:var(--color-background)}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;background:none}input,textarea{outline:none}@media (max-width:767px){html{-webkit-overflow-scrolling:touch}body{min-height:-webkit-fill-available}}