:root{--color-primary: #FF6B00;--color-primary-hover: #E55D00;--color-secondary: #15803D;--color-success: #22C55E;--color-warning: #F59E0B;--color-danger: #EF4444;--color-gold: #D97706;--color-text-primary: #1a1a2e;--color-text-secondary: #666666;--color-text-light: #999999;--color-bg: #FFFFFF;--color-bg-card: #FFFFFF;--color-bg-page: #F5F5F5;--color-bg-hover: #F8F8F8;--gradient-nav: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);--nav-height: 48px;--tab-height: 56px;--radius-sm: 8px;--radius-md: 12px;--radius-card: 16px;--radius-round: 50%;--shadow-card: 0 4px 12px rgba(0, 0, 0, .1);--shadow-card-hover: 0 6px 18px rgba(0, 0, 0, .15);--font-family-base: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;--font-size-xs: 12px;--font-size-sm: 14px;--font-size-md: 16px;--font-size-lg: 20px;--font-size-xl: 24px;--font-size-xxl: 32px;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 16px;--spacing-xl: 20px;--spacing-xxl: 24px;--z-content: 0;--z-sticky: 100;--z-dropdown: 200;--z-overlay: 300;--z-modal: 400;--z-toast: 500;--z-topmost: 600}*{margin:0;padding:0;box-sizing:border-box}html,body{font-family:var(--font-family-base);font-size:14px;color:var(--color-text-primary);background-color:var(--color-bg-page);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none}a{color:var(--color-primary);text-decoration:none}img{max-width:100%;display:block}.safe-area-top{padding-top:constant(safe-area-inset-top);padding-top:env(safe-area-inset-top)}.safe-area-bottom{padding-bottom:constant(safe-area-inset-bottom);padding-bottom:env(safe-area-inset-bottom)}