*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:#f5f5f5;color:#333}.app{min-height:100vh;display:flex;flex-direction:column}.header{background-color:#2c3e50;color:#fff;padding:1rem 2rem;box-shadow:0 2px 4px rgba(0,0,0,.1)}.header h1{font-size:1.5rem}.main{flex:1 1}.container{display:flex;height:calc(100vh - 60px)}.sidebar{width:300px;background-color:#fff;border-right:1px solid #e0e0e0;overflow-y:auto}.new-doc-btn{width:100%;padding:1rem;background-color:#3498db;color:#fff;border:none;font-size:1rem;cursor:pointer;transition:background-color .3s}.new-doc-btn:hover{background-color:#2980b9}.document-list{padding:1rem}.document-list h3{margin-bottom:1rem;color:#2c3e50}.empty-list{color:#999;text-align:center;padding:2rem}.document-list ul{list-style:none}.document-item{border:1px solid #e0e0e0;border-radius:4px;margin-bottom:.5rem;display:flex;align-items:center;transition:all .3s}.document-item:hover{background-color:#f8f9fa}.document-item.selected{background-color:#e3f2fd;border-color:#3498db}.doc-info{flex:1 1;padding:.75rem;cursor:pointer}.doc-info h4{font-size:.9rem;margin-bottom:.25rem}.doc-date{font-size:.75rem;color:#666}.delete-btn{padding:.5rem 1rem;margin-right:.5rem;background-color:#e74c3c;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.8rem;transition:background-color .3s}.delete-btn:hover{background-color:#c0392b}.main-content{flex:1 1}.empty-state,.main-content{display:flex;flex-direction:column}.empty-state{align-items:center;justify-content:center;height:100%;color:#666}.empty-state h2{margin-bottom:1rem}.document-editor{display:flex;flex-direction:column;height:100%}.editor-header{display:flex;padding:1rem;background-color:#fff;border-bottom:1px solid #e0e0e0;gap:1rem}.title-input{flex:1 1;padding:.75rem;font-size:1.2rem;border:1px solid #e0e0e0;border-radius:4px}.save-btn{padding:.75rem 2rem;background-color:#27ae60;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:1rem;transition:background-color .3s}.save-btn:hover{background-color:#229954}.content-textarea{flex:1 1;padding:1.5rem;border:none;resize:none;font-size:1rem;line-height:1.6;font-family:inherit}.content-textarea:focus{outline:none}@media (max-width:768px){.container{flex-direction:column}.sidebar{width:100%;height:40%;border-right:none;border-bottom:1px solid #e0e0e0}}.loading{height:100vh;font-size:1.2rem;color:#666}.loading,.login-container{display:flex;justify-content:center;align-items:center}.login-container{min-height:calc(100vh - 60px);background-color:#f5f5f5}.login-form{background:#fff;padding:2rem;border-radius:8px;box-shadow:0 4px 6px rgba(0,0,0,.1);width:100%;max-width:400px}.login-form h2{text-align:center;margin-bottom:2rem;color:#2c3e50}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.5rem;color:#333;font-weight:500}.form-group input{width:100%;padding:.75rem;border:1px solid #ddd;border-radius:4px;font-size:1rem}.form-group input:focus{outline:none;border-color:#3498db}.error-message{color:#e74c3c;font-size:.9rem;margin-bottom:1rem;text-align:center}.login-btn{width:100%;padding:.75rem;background-color:#3498db;color:#fff;border:none;border-radius:4px;font-size:1rem;cursor:pointer;transition:background-color .3s}.login-btn:hover{background-color:#2980b9}.guest-section{text-align:center;margin:1.5rem 0}.guest-section p{color:#666;margin-bottom:.5rem}.guest-btn{padding:.5rem 1rem;background-color:#95a5a6;color:#fff;border:none;border-radius:4px;cursor:pointer;transition:background-color .3s}.guest-btn:hover{background-color:#7f8c8d}.login-hint{margin-top:1.5rem;padding:1rem;background-color:#f8f9fa;border-radius:4px;border-left:4px solid #3498db}.login-hint p{font-size:.9rem;color:#666;margin:0;text-align:center}.user-info{display:flex;justify-content:space-between;align-items:center;padding:.75rem 2rem;background-color:#ecf0f1;border-bottom:1px solid #bdc3c7}.user-role{font-weight:500;color:#2c3e50}.logout-btn{padding:.5rem 1rem;background-color:#e74c3c;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.9rem;transition:background-color .3s}.logout-btn:hover{background-color:#c0392b}.readonly-notice{position:absolute;bottom:1rem;right:1rem;background-color:#f39c12;color:#fff;padding:.5rem 1rem;border-radius:4px;font-size:.9rem}.document-editor{position:relative}.title-input:-moz-read-only{background-color:#f8f9fa;cursor:default}.title-input:read-only{background-color:#f8f9fa;cursor:default}.content-textarea:-moz-read-only{background-color:#f8f9fa;cursor:default}.content-textarea:read-only{background-color:#f8f9fa;cursor:default}.container{height:calc(100vh - 120px)}@media (max-width:768px){.user-info{padding:.5rem 1rem;flex-direction:column;gap:.5rem}.container{height:calc(100vh - 140px)}.login-form{margin:1rem;padding:1.5rem}}.user-info .user-role{padding:.25rem .75rem;border-radius:12px;font-size:.85rem}.user-info .user-role:contains("管理员"){background-color:#27ae60;color:#fff}.user-info .user-role:contains("游客"){background-color:#f39c12;color:#fff}.delete-btn:disabled,.new-doc-btn:disabled,.save-btn:disabled{background-color:#bdc3c7;cursor:not-allowed}.loading-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);display:flex;justify-content:center;align-items:center;color:#fff;font-size:1.2rem;z-index:1000}