#app{width:100%;height:100vh;overflow:hidden}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #6c5ce7;--primary-light: #a29bfe;--bg-dark: #1a1a2e;--bg-medium: #16213e;--bg-light: #0f3460;--text-primary: #ffffff;--text-secondary: #b2bec3;--text-muted: #636e72;--bubble-user: #6c5ce7;--bubble-assistant: #2d3436;--border-color: rgba(255, 255, 255, .1);--shadow: 0 4px 20px rgba(0, 0, 0, .3)}html,body{width:100%;height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg-dark);color:var(--text-primary);overflow:hidden;-webkit-font-smoothing:antialiased}#app{width:100%;height:100%}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#fff3;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#ffffff4d}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border:none;border-radius:12px;font-size:16px;font-weight:500;cursor:pointer;transition:all .2s ease;outline:none}.btn-primary{background:linear-gradient(135deg,var(--primary-color),var(--primary-light));color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #6c5ce766}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.input{width:100%;padding:14px 16px;border:1px solid var(--border-color);border-radius:12px;background:#ffffff0d;color:var(--text-primary);font-size:16px;outline:none;transition:all .2s ease}.input:focus{border-color:var(--primary-color);background:#ffffff14}.input::placeholder{color:var(--text-muted)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.fade-in{animation:fadeIn .3s ease}.pulse{animation:pulse 1.5s ease-in-out infinite}