#app{height:100%}:root{--primary: #4F46E5;--primary-light: #6366F1;--primary-bg: #EEF2FF;--bg: #F9FAFB;--white: #FFFFFF;--border: #E5E7EB;--text-primary: #111827;--text-secondary: #6B7280;--text-muted: #9CA3AF;--danger: #EF4444;--success: #10B981;--sidebar-width: 300px;--chat-bg: #F3F4F6;--user-bubble: #4F46E5;--assistant-bubble: #FFFFFF;--shadow: 0 1px 3px rgba(0,0,0,.08);--radius: 12px;--radius-sm: 8px}*{margin:0;padding:0;box-sizing:border-box}html,body,#app{height:100%;width:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:14px;color:var(--text-primary);background:var(--bg);overflow:hidden}button{border:none;background:none;cursor:pointer;font-family:inherit;font-size:inherit}input,textarea{border:none;outline:none;font-family:inherit;font-size:inherit}a{color:var(--primary);text-decoration:none}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--text-muted);border-radius:2px}.fade-enter-active,.fade-leave-active{transition:opacity .2s ease}.fade-enter-from,.fade-leave-to{opacity:0}.hljs code{max-height:24rem}.markdown-body pre{position:relative}.code-actions{position:absolute;top:4px;right:8px;display:flex;gap:4px;z-index:2;opacity:0;transition:opacity .15s}.markdown-body pre:hover .code-actions{opacity:1}.code-action-btn{padding:2px 8px;font-size:12px;border-radius:4px;background:rgba(0,0,0,.4);color:#fff;border:1px solid rgba(255,255,255,.1);cursor:pointer;transition:background .1s;line-height:1.5}.code-action-btn:hover{background:rgba(0,0,0,.6)}.code-truncate-gap{display:inline;color:#9ca3af;font-size:13px;padding:0 4px}.code-expand-btn{background:none;border:none;color:#60a5fa;cursor:pointer;font-family:inherit;font-size:13px;padding:0 2px;text-decoration:underline}.code-expand-btn:hover{color:#93c5fd}.code-fold-btn{display:block;margin-top:8px;background:none;border:none;color:#60a5fa;cursor:pointer;font-family:inherit;font-size:13px;text-decoration:underline;padding:0}.code-fold-btn:hover{color:#93c5fd}.markdown-body pre{max-height:1000px}.markdown-body pre.code-truncated{max-height:200px;overflow:hidden}