* {
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            margin: 0;
            padding: 20px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: #333;
            min-height: 100vh;
        }

        .container {
            max-width: 900px;
            margin: 0 auto;
            background-color: #fff;
            padding: 40px;
            border-radius: 16px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            animation: fadeInUp 0.6s ease-out;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        h1 {
            color: #2c3e50;
            text-align: center;
            margin-bottom: 30px;
            font-size: 2.2em;
            font-weight: 600;
            position: relative;
        }

        h1::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, #667eea, #764ba2);
            border-radius: 2px;
        }
        
        .settings-group {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            border: 2px solid #e9ecef;
            border-radius: 12px;
            padding: 25px;
            margin-bottom: 30px;
            transition: all 0.3s ease;
        }

        .settings-group:hover {
            border-color: #667eea;
            box-shadow: 0 8px 25px rgba(102, 126, 234, 0.1);
        }

        .settings-group h2 {
            margin-top: 0;
            margin-bottom: 20px;
            color: #34495e;
            font-size: 1.3em;
            font-weight: 600;
            border-bottom: 2px solid #667eea;
            padding-bottom: 12px;
        }
        
        .input-row {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 18px;
        }

        .input-row label {
            font-weight: 600;
            flex-shrink: 0;
            width: 100px;
            color: #495057;
        }

        .input-row input, .input-row select {
            flex-grow: 1;
            padding: 12px 16px;
            border: 2px solid #e9ecef;
            border-radius: 8px;
            font-size: 14px;
            background-color: #fff;
            transition: all 0.3s ease;
        }

        .input-row input:focus, .input-row select:focus {
            outline: none;
            border-color: #667eea;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
        }
        
        textarea {
            width: 100%;
            box-sizing: border-box;
            height: 180px;
            margin-bottom: 25px;
            padding: 16px;
            border: 2px solid #e9ecef;
            border-radius: 12px;
            font-size: 14px;
            resize: vertical;
            transition: all 0.3s ease;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        textarea:focus {
            outline: none;
            border-color: #667eea;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
        }

        button {
            display: block;
            width: 100%;
            padding: 15px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: #fff;
            border: none;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
            transition: left 0.5s;
        }

        button:hover::before {
            left: 100%;
        }

        button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
        }

        button:disabled {
            background: #95a5a6;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }

        .results {
            margin-top: 40px;
        }

        .result-category {
            margin-bottom: 25px;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInCategory 0.5s ease-out forwards;
        }

        @keyframes fadeInCategory {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .result-category:hover {
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
        }

        .result-category h2 {
            margin: 0;
            padding: 16px 20px;
            font-size: 1.1em;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .result-category h2 .count-badge {
            background: rgba(255, 255, 255, 0.2);
            color: inherit;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.85em;
            font-weight: 500;
            min-width: 24px;
            text-align: center;
        }

        .category-valid h2 { 
            background: linear-gradient(135deg, #2ecc71, #27ae60); 
            color: white;
        }
        .category-quota h2 { 
            background: linear-gradient(135deg, #f39c12, #e67e22); 
            color: white;
        }
        .category-suspended h2 { 
            background: linear-gradient(135deg, #e74c3c, #c0392b); 
            color: white;
        }
        .category-invalid h2 { 
            background: linear-gradient(135deg, #9b59b6, #8e44ad); 
            color: white;
        }
        .category-project-quota h2 { 
            background: linear-gradient(135deg, #3498db, #2980b9); 
            color: white;
        }
        .category-unknown h2 { 
            background: linear-gradient(135deg, #95a5a6, #7f8c8d); 
            color: white;
        }

        .results-content {
            padding: 20px;
            font-size: 14px;
            min-height: 50px;
            max-height: 300px;
            overflow-y: auto;
            white-space: pre-wrap;
            word-break: break-all;
            background: #fafafa;
        }

        .invalid-token {
            display: flex;
            background: linear-gradient(135deg, #fff5f5, #ffeaea);
            padding: 15px;
            margin-bottom: 12px;
            border-radius: 8px;
            border-left: 4px solid #e74c3c;
            transition: all 0.3s ease;
        }

        .invalid-token:hover {
            transform: translateX(5px);
            box-shadow: 0 4px 15px rgba(231, 76, 60, 0.1);
        }

        .invalid-token-content {
            display: flex;
            flex-direction: column;
            width: 100%;
        }

        .invalid-token-token {
            font-family: 'Courier New', monospace;
            background-color: #fff;
            padding: 8px 12px;
            border-radius: 6px;
            margin-bottom: 8px;
            border: 1px solid #ffcccb;
            word-break: break-all;
            font-size: 13px;
        }

        .invalid-token-message {
            color: #c0392b;
            font-weight: 600;
            font-size: 13px;
        }

        .loader {
            border: 3px solid rgba(255, 255, 255, 0.3);
            border-top: 3px solid #fff;
            border-radius: 50%;
            width: 18px;
            height: 18px;
            animation: spin 1s linear infinite;
            display: inline-block;
            vertical-align: middle;
            margin-right: 10px;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .copy-button {
            background: linear-gradient(135deg, #6c757d, #5a6268);
            padding: 8px 16px;
            font-size: 13px;
            flex-grow: 0;
            width: auto;
            margin-top: 0;
            border-radius: 8px;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .copy-button:hover {
            background: linear-gradient(135deg, #5a6268, #495057);
            transform: translateY(-1px);
        }

        .button-group {
            display: flex;
            gap: 10px;
            margin-top: 12px;
            justify-content: flex-end;
            padding: 0 20px 20px;
        }

        .button-group .copy-button {
            flex: 1;
            margin-top: 0;
            max-width: 120px;
        }

        /* 滚动条样式 */
        .results-content::-webkit-scrollbar {
            width: 6px;
        }

        .results-content::-webkit-scrollbar-track {
            background: #f1f1f1;
            border-radius: 3px;
        }

        .results-content::-webkit-scrollbar-thumb {
            background: #c1c1c1;
            border-radius: 3px;
        }

        .results-content::-webkit-scrollbar-thumb:hover {
            background: #a8a8a8;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .container {
                padding: 20px;
                margin: 10px;
            }
            
            .input-row {
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
            }
            
            .input-row label {
                width: auto;
            }
            
            .button-group {
                flex-direction: column;
            }
            
            .button-group .copy-button {
                max-width: none;
            }
        }
        .status-panel {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            padding: 15px;
            background: #f8f9fa;
            border-radius: 12px;
            margin-bottom: 30px;
            border: 1px solid #e9ecef;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
        }

        .status-item {
            font-size: 14px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 20px;
            background-color: #e9ecef;
            color: #495057;
        }

        .status-item span {
            font-weight: 700;
        }

        .status-valid { background-color: #e9f7ef; color: #2ecc71; }
        .status-quota { background-color: #fef5e7; color: #f39c12; }
        .status-project-quota { background-color: #ebf5fb; color: #3498db; }
        .status-suspended { background-color: #fdedec; color: #e74c3c; }
        .status-invalid { background-color: #f5eef8; color: #9b59b6; }
        .status-unknown { background-color: #f4f6f6; color: #95a5a6; }
        .status-retry { background-color: #fff8e1; color: #f1c40f; }

        .results-layout {
            display: flex;
            margin-top: 30px;
            gap: 20px;
            min-height: 400px;
        }

        .sidebar {
            width: 220px;
            flex-shrink: 0;
            background: #f8f9fa;
            border-radius: 12px;
            padding: 15px;
            border: 1px solid #e9ecef;
        }

        .sidebar-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 15px;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.2s ease;
            margin-bottom: 8px;
            font-weight: 500;
        }

        .sidebar-item:hover {
            background-color: #e9ecef;
        }

        .sidebar-item.active {
            font-weight: 600;
            color: #fff;
        }
        
        .sidebar-item .count-badge {
            background: rgba(0,0,0,0.1);
            color: inherit;
            padding: 2px 10px;
            border-radius: 12px;
            font-size: 0.8em;
        }

        .sidebar-item.active .count-badge {
            background: rgba(255,255,255,0.2);
        }

        /* Sidebar Color Themes */
        .sidebar-item.category-valid.active { background: linear-gradient(135deg, #2ecc71, #27ae60); }
        .sidebar-item.category-quota.active { background: linear-gradient(135deg, #f39c12, #e67e22); }
        .sidebar-item.category-project-quota.active { background: linear-gradient(135deg, #3498db, #2980b9); }
        .sidebar-item.category-suspended.active { background: linear-gradient(135deg, #e74c3c, #c0392b); }
        .sidebar-item.category-invalid.active { background: linear-gradient(135deg, #9b59b6, #8e44ad); }
        .sidebar-item.category-unknown.active { background: linear-gradient(135deg, #95a5a6, #7f8c8d); }
        .sidebar-item.category-duplicate.active { background: linear-gradient(135deg, #bdc3c7, #95a5a6); }


        .content-area {
            flex-grow: 1;
            background: #fff;
            border-radius: 12px;
            border: 1px solid #e9ecef;
            padding: 20px;
        }

        .content-item {
            display: none; /* Default hidden */
        }

        .content-item.active {
            display: block; /* Show active content */
        }