/* 细线风格美化样式 */
        .tool-form {
          max-width: 100%;
          border: none;
          box-shadow: none;
          padding: 0;
          margin: 0;
          font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }
        
        .row {
          display: flex;
          flex-wrap: wrap;
          gap: 20px;
          margin-bottom: 20px;
        }
        
        .col-2 {
          flex: 1;
          min-width: 300px;
        }
        
        .panel {
          border: 1px solid #e0e0e0;
          border-radius: 2px;
          background: #fff;
          transition: border-color 0.2s ease;
        }
        
        .panel:hover {
          border-color: #bdbdbd;
        }
        
        .panel-heading {
          padding: 12px 15px;
          background: #fafafa;
          border-bottom: 1px solid #e0e0e0;
        }
        
        .panel-heading h5 {
          margin: 0;
          font-size: 14px;
          font-weight: 600;
          color: #333;
          letter-spacing: 0.5px;
        }
        
        .panel-body {
          padding: 20px 15px;
        }
        
        .form-field {
          margin-bottom: 15px;
        }
        
        .form-field label {
          display: block;
          margin-bottom: 5px;
          font-size: 13px;
          font-weight: 500;
          color: #555;
        }
        
        .form-field label.form-block {
          font-weight: 600;
          color: #333;
          font-size: 12px;
          text-transform: uppercase;
          letter-spacing: 0.5px;
          margin-bottom: 8px;
        }
        
        .form-input {
          width: 100%;
          padding: 8px 10px;
          border: 1px solid #ddd;
          border-radius: 1px;
          font-size: 13px;
          line-height: 1.5;
          color: #333;
          background: #fff;
          transition: all 0.2s ease;
          box-sizing: border-box;
        }
        
        .form-input:focus {
          outline: none;
          border-color: #4285f4;
          box-shadow: 0 0 0 1px rgba(66, 133, 244, 0.1);
        }
        
        .form-input.form-block {
          border-color: #ccc;
          background: #f9f9f9;
        }
        
        .form-input.form-block:focus {
          background: #fff;
          border-color: #4285f4;
        }
        
        .form-btn {
          margin-top: 20px;
          padding-top: 15px;
          border-top: 1px solid #eee;
        }
        
        .btn {
          display: inline-block;
          padding: 8px 20px;
          font-size: 13px;
          font-weight: 500;
          line-height: 1.5;
          text-align: center;
          text-decoration: none;
          white-space: nowrap;
          cursor: pointer;
          border: 1px solid transparent;
          border-radius: 1px;
          transition: all 0.2s ease;
          letter-spacing: 0.5px;
        }
        
        .btn-success {
          color: #fff;
          background-color: #34a853;
          border-color: #34a853;
        }
        
        .btn-success:hover {
          background-color: #2e9449;
          border-color: #2e9449;
        }
        
        .btn-success:active {
          background-color: #27833f;
          border-color: #27833f;
        }
        
        .radio {
          display: inline-flex;
          align-items: center;
          margin-right: 20px;
          cursor: pointer;
          font-size: 13px;
          color: #555;
        }
        
        .radio input[type="radio"] {
          margin: 0 6px 0 0;
          width: 14px;
          height: 14px;
          cursor: pointer;
        }
        
        .tool-form > .form-field:first-child {
          margin-bottom: 20px;
          padding-bottom: 15px;
          border-bottom: 1px solid #eee;
        }
        
        .tips {
          font-size: 12px;
          color: #666;
          margin: 15px 0;
          padding: 8px 12px;
          background: #f5f5f5;
          border-left: 3px solid #4285f4;
          border-radius: 1px;
        }
        
        .tool-info {
          margin-top: 25px;
          padding: 15px;
          background: #f8f9fa;
          border-top: 1px solid #e9ecef;
          border-radius: 1px;
        }
        
        .tool-info h5 {
          margin: 0 0 10px 0;
          font-size: 14px;
          font-weight: 600;
          color: #333;
        }
        
        .tool-info p {
          margin: 0;
          font-size: 13px;
          line-height: 1.5;
          color: #666;
        }
        
        #tool-tips-msg0,
        #tool-tips-msg1,
        #tool-tips-msg2,
        #tool-tips-msg3 {
          font-size: 12px;
          color: #666;
          margin-top: 10px;
          padding: 5px 0;
          min-height: 20px;
        }
        
        .hide {
          display: none;
        }
        
        .table {
          width: 100%;
          border-collapse: collapse;
          border-spacing: 0;
          font-size: 12px;
          margin-top: 10px;
          border: 1px solid #e0e0e0;
        }
        
        .table th,
        .table td {
          padding: 8px 10px;
          text-align: left;
          border: 1px solid #e0e0e0;
        }
        
        .table th {
          background-color: #f8f9fa;
          font-weight: 600;
          color: #333;
          border-bottom-width: 2px;
        }
        
        .table tbody tr:hover {
          background-color: #f5f5f5;
        }
        
        .btn-copyit {
          cursor: pointer;
          color: #4285f4;
          transition: color 0.2s ease;
          text-decoration: none;
          border: none;
          background: none;
          padding: 0;
          font: inherit;
        }
        
        .btn-copyit:hover {
          color: #3367d6;
          text-decoration: underline;
        }
        
        .tool-result {
          margin-top: 10px;
          padding: 15px;
          background: #f8f9fa;
          border: 1px solid #e9ecef;
          border-radius: 1px;
          font-size: 13px;
          line-height: 1.6;
        }
        
        .tool-result p {
          margin: 0 0 8px 0;
          color: #333;
        }
        
        .tool-result p:last-child {
          margin-bottom: 0;
        }
        
        .btn-list {
          margin-top: 10px;
          text-align: right;
        }
        
        .btn-copy-p {
          background-color: #4285f4;
          color: white;
          border: none;
          padding: 6px 16px;
          font-size: 12px;
          border-radius: 1px;
          cursor: pointer;
          transition: background-color 0.2s ease;
          font-weight: 500;
        }
        
        .btn-copy-p:hover {
          background-color: #3367d6;
        }
        
        @media (max-width: 768px) {
          .col-2 {
            min-width: 100%;
          }
          
          .row {
            gap: 15px;
          }
        }
        
        input[type="number"] {
          -moz-appearance: textfield;
        }
        
        input[type="number"]::-webkit-outer-spin-button,
        input[type="number"]::-webkit-inner-spin-button {
          -webkit-appearance: none;
          margin: 0;
        }
        
        .tips-error {
          color: #dc3545;
          background-color: #f8d7da;
          border-left: 3px solid #dc3545;
          padding: 8px 12px;
          border-radius: 1px;
          font-size: 12px;
          margin-top: 10px;
        }
        
        .tips-success {
          color: #28a745;
          background-color: #d4edda;
          border-left: 3px solid #28a745;
          padding: 8px 12px;
          border-radius: 1px;
          font-size: 12px;
          margin-top: 10px;
        }
        
        .tips-loading {
          color: #17a2b8;
          background-color: #d1ecf1;
          border-left: 3px solid #17a2b8;
          padding: 8px 12px;
          border-radius: 1px;
          font-size: 12px;
          margin-top: 10px;
        }
        /* 输出结果格式样式 */
        .tool-form > .form-field:first-child {
          margin-bottom: 20px;
          padding-bottom: 15px;
          border-bottom: 1px solid #eee;
          display: flex;
          align-items: center;
          gap: 15px;
        }
        
        .tool-form > .form-field:first-child label:first-child {
          margin: 0;
          white-space: nowrap;
          font-size: 13px;
          font-weight: 500;
          color: #333;
        }
        
        .tool-form > .form-field:first-child .radio {
          margin: 0;
          display: inline-flex;
          align-items: center;
        }
        
        .tool-form > .form-field:first-child .radio:not(:last-child) {
          margin-right: 20px;
        }