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#FFFFFF;--border-color: #E1E8ED;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .15);--gradient-primary: linear-gradient(135deg, #4A90E2 0%, #50C878 100%);--gradient-soft: linear-gradient(135deg, #E8F4F8 0%, #F0F9F4 100%)}body{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;color:var(--text-primary);line-height:1.6;background-color:var(--bg-white)}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier 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