:root{--primary-blue: #4a6bff;--primary-green: #36c997;--primary-orange: #ff9a3c;--primary-purple: #9d5bff;--primary-red: #ff5a7d;--primary-cyan: #2dd4bf;--primary-pink: #ff6b9d;--text-dark: #1e293b;--text-light: #64748b;--text-muted: #94a3b8;--bg-color: #f8fafc;--card-bg: #ffffff;--border-color: #e2e8f0;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .05);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .1);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px}*{margin:0;padding:0;box-sizing:border-box;font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}body{background-color:var(--bg-color);color:var(--text-dark);min-height:100vh;line-height:1.5}a{text-decoration:none;color:inherit}ul{list-style:none}