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20px;font-size:13px;z-index:200;box-shadow:var(--shadow);color:var(--text)}.toast.success{border-color:var(--success);color:var(--success)}.toast.error{border-color:var(--danger);color:var(--danger)}@media (max-width: 768px){.sidebar,.blueprint-panel{display:none}.auth-box{padding:24px 20px;margin:16px}.chat-header{padding:12px 16px}.messages{padding:16px;gap:12px}.msg{max-width:95%}.question-area{padding:12px 16px}.input-area{padding:8px 12px}.summary-panel{padding:10px 16px}}@media (max-width: 480px){.auth-wrap{align-items:flex-start;padding-top:40px}.auth-box{padding:20px 16px}.chat-input{font-size:16px}.send-btn{padding:10px 14px}}