:root{--primary:#2d5016;--primary-light:#4a7c28;--bg-white:#fff;--bg-gray:#f7f8f6;--text-primary:#1a1a1a;--text-secondary:#555;--text-light:#999;--border:#e8e8e8;--border-light:#f0f0f0;--ai-bubble:#f5f5f5;--user-bubble:#2d5016;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--shadow-sm:0 1px 3px #0000000f;--transition:all .2s ease;--sidebar-width:260px}*{box-sizing:border-box;margin:0;padding:0}html{height:100%;overflow:auto}body{color:#333;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#f0f2f5;height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.6;overflow:auto}#app{width:100%;min-height:100svh;overflow:auto}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#ddd;border-radius:3px}