:root{--color-bg: #ffffff;--color-text-primary: #111111;--color-text-secondary: #666666;--color-accent: #007aff;--color-primary: #007aff;--color-accent-hover: #0056b3;--color-border: #eaeaea;--color-bg-secondary: #f9f9f9;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;--font-size-base: 16px;--font-size-sm: 14px;--font-size-lg: 18px;--font-size-xl: 24px;--font-size-2xl: 32px;--font-size-3xl: 48px;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 48px;--spacing-3xl: 64px;--container-width: 1200px;--header-height: 60px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--color-bg);color:var(--color-text-primary);line-height:1.5;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit;transition:color .2s ease}ul{list-style:none}button{cursor:pointer;border:none;background:none;font-family:inherit}.container{max-width:var(--container-width);margin:0 auto;padding:0 var(--spacing-md)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-sm) var(--spacing-lg);border-radius:4px;font-weight:500;transition:all .2s ease}.btn-primary{background-color:var(--color-accent);color:#fff}.btn-primary:hover{background-color:var(--color-accent-hover)}.btn-outline{border:1px solid var(--color-border);color:var(--color-text-primary)}.btn-outline:hover{border-color:var(--color-text-primary)}.section{padding:var(--spacing-3xl) 0}.text-center{text-align:center}.text-secondary{color:var(--color-text-secondary)}