* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft Yahei', Arial, sans-serif;
        }
        
        body {
            background: #fff;
            min-height: 100vh;
            padding: 0;
            overflow-x: hidden;
        }

        .header {
            background: #fff;
            border-bottom: 1px solid #eee;
            position: relative;
            z-index: 999;
        }

        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 20px;
        }
        .octive{
            background: #2896F0;
            padding: 6px 10px; border-radius: 5px;
        }
        .menu-btn {
            width: 30px;
            height: 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-around;
            cursor: pointer;
            display: none;
        }

        .menu-btn span {
            width: 100%;
            height: 3px;
            background: #333;
            border-radius: 2px;
        }

        .header-title {
            font-size: 22px;
            color: #333;
            text-align: center;
            flex: 1;
            margin: 0 20px;
        }

        .nav-bar {
            background: #2175d9;
            padding: 14.5px 20px;
        }

        .nav-list {
            list-style: none;
            display: flex;
            gap: 5px;
            justify-content: flex-start;
            max-width: 939.9px;
            margin: 0 auto;
        }

        .nav-list li a {
            color: #fff;
            text-decoration: none;
            font-size: 16px;padding: 6px 10px; 
        }

        .nav-list li a:hover {
           background: #2896F0;
           padding: 6px 10px; border-radius: 5px; 
        }
        
        .container {
            width: 1000px;
            margin: 0 auto;
            padding: 30px;
        }
        
        .input-group {
            margin-bottom: 20px;
        }
        
        .label-with-options {
            display: flex;
            align-items: center;
            gap: 15px;
            flex-wrap: wrap;
            margin-bottom: 8px;
            font-size: 16px;
            font-weight: 600;
            color: #333;
        }
        
        textarea {
            width: 100%;
            height: 203px;
            min-height: 100px;
            max-height: 500px;
            padding: 15px;
            border: 2px solid #eee;
            border-radius: 8px;
            font-size: 28px;
            line-height: 1.5;
            resize: vertical;
            transition: border-color 0.3s ease;
        }
        
        textarea:focus {
            outline: none;
            border-color: #4361ee;
            box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
        }
        
        textarea::placeholder {
            font-size: 16px;
            color: #999;
            opacity: 1;
            line-height: 1.5;
        }
        
        .btn-group {
            display: flex;
            gap: 15px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        
        button {
            padding: 12px 25px;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .btn-primary {
            background: #4361ee;
            color: white;
        }
        
        .btn-primary:hover {
            background: #3a56d4;
        }
        
        .btn-secondary {
            background: #f8f9fa;
            color: #333;
        }
        
        .btn-secondary:hover {
            background: #e9ecef;
        }
        
        .result-group {
            background: #f8f9fa;
            padding: 1px;
            border-radius: 8px;
            margin-bottom: 20px;
            display: none;
        }
        
        .result-group.show {
            display: block;
        }
        
        .result-table-wrapper {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        
        .result-table {
            width: 100%;
            border-collapse: collapse;
            background: white;
            border-radius: 6px;
            overflow: hidden;
            min-width: 600px;
        }
        
        .result-table th, .result-table td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid #eee;
        }
        
        .result-table th {
            background: #f9f9fa;
            font-size: 16px;
            color: #666;
            font-weight: 600;
        }
        
        .result-table th:nth-child(1), .result-table td:nth-child(1) {
           
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .result-table th:nth-child(2), .result-table td:nth-child(2) {
          
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .result-table th:nth-child(3), .result-table td:nth-child(3) {
          
            text-align: center;
        }
        
        .amount-text {
            font-size: 20px;
            color: #333;
        }
        .capital-text {
            font-size: 26px;
            color: #222;
        }
        .error-text {
            color: #dc3545;
            font-weight: 600;
        }
        
        .copy-btn {
            padding: 8px 12px;
            font-size: 14px;
            background: #4361ee;
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.2s ease; 
        }
        
        .copy-btn:hover {
            background: #3a56d4;
        }
        
        .copy-btn.error {
            background: #dc3545;
            cursor: not-allowed;
        }
        
        .copy-btn.error:hover {
            background: #dc3545;
            transform: none;
        }
        
        .unit-options {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: normal;
        }
        
        .unit-option {
            display: flex;
            align-items: center;
            gap: 5px;
            cursor: pointer;
            font-size: 14px;
            position: relative;
        }
        
        .unit-option input[type="radio"] {
            width: 16px;
            height: 16px;
            accent-color: #4361ee;
            display: none;
        }
        
        .unit-option .radio-custom {
            width: 16px;
            height: 16px;
            border: 2px solid #4361ee;
            border-radius: 50%;
            position: relative;
            cursor: pointer;
        }
        
        .unit-option input[type="radio"]:checked + .radio-custom::after {
            content: '';
            width: 8px;
            height: 8px;
            background: #4361ee;
            border-radius: 50%;
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }
        
        .unit-option label {
            margin: 0;
            font-weight: normal;
            cursor: pointer;
            margin-left: 5px;
        }
        
        .map-table-group {
            margin-top: 20px;
            padding: 20px;
            background: #f8f9fa;
            border-radius: 8px;
        }
        
        .map-table-title {
            font-size: 20px;
            font-weight: 600;
            color: #333;
            margin-bottom: 25px;
            text-align: left;
        }
        
        .char-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 110px;
            margin-bottom: 30px;margin-left: 30px;
            justify-content: flex-start;
        }
        
        .char-box {
            display: flex;
            flex-direction: column;
            align-items: center;
            width: 80px;
        }
        
        .char-big {
            width: 130px;
            height: 130px;
            border: 1px solid #ccc;
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 80px;
            font-weight: 500;
            margin-bottom: 8px;
            background: #fff;
        }
        
        .char-small {
            font-size: 26px;
            color: #333;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .char-red {
            color: #d32f2f;
            font-weight: 600;
            font-size: 26px;
        }
        
        .map-subtitle {
            font-size: 18px;
            font-weight: 600;
            color: #333;
            margin: 20px 0 15px 0;
            border-top: 1px solid #eee;
            padding-top: 15px;
        }

        .common-amount-table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: 8px;
            overflow: hidden;
            margin-top: 20px;
        }
        
        .common-amount-table th,
        .common-amount-table td {
            padding: 14px 20px;
            text-align: left;
            border-bottom: 1px solid #eee;
        }
        
        .common-amount-table th {
            background: #f9f9fa;
            font-size: 16px;
            color: #333;
            font-weight: 600;
        }
        
        .common-amount-table td {
            font-size: 15px;
            color: #555;
        }
        
        .common-amount-table td:nth-child(2) {
            color: #2175d9;
            font-weight: 500;
        }
        
        .common-amount-table tr:last-child td {
            border-bottom: none;
        }
        
        .knowledge-section {
            margin-top: 20px;
            padding: 20px;
            background: #f8f9fa;
            border-radius: 8px;
        }
        
        .knowledge-title {
            font-size: 18px;
            font-weight: 600;
            color: #333;
            margin-bottom: 12px;
            border-bottom: 1px solid #eee;
            padding-bottom: 8px;
        }
        
        .knowledge-content {
            font-size: 16px;
            line-height: 1.8;
            color: #555;
            margin-bottom: 15px;
        }
        
        .knowledge-content p {
            margin-bottom: 10px;
        }
        
        .knowledge-content ul {
            margin-left: 20px;
            margin-bottom: 10px;
        }
        
        .knowledge-content li {
            margin-bottom: 8px;
        }
        
       
        .history-conversion-section {
            margin: 25px 0;
            padding: 20px;
            background: #f8f9fa;
            border-radius: 8px;
        }
        
        .history-title {
            font-size: 18px;
            font-weight: 600;
            color: #333;
            margin-bottom: 12px;
            border-bottom: 1px solid #eee;
            padding-bottom: 8px;
        }
        
        .history-numbers {
            font-size: 16px;
            color: #555;
            line-height: 1.8; word-wrap: break-word; 
    white-space: normal;
        }
        
        .history-number-link {
            color: #2175d9;
            text-decoration: none;
            cursor: pointer;
            transition: color 0.3s ease; 
        }
        
        .history-number-link:hover {
            color: #ff0000;
            text-decoration: none;
        }
        
  
        .auto-convert-tip {
            background: #e8f4fd;
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 20px;
            border-left: 4px solid #2175d9;
        }
        
        .auto-convert-tip h3 {
            font-size: 18px;
            color: #1756b8;
            margin-bottom: 10px;
        }
        
        .auto-convert-tip p {
            font-size: 16px;
            color: #333;
            line-height: 1.6;
        }
        
        .auto-convert-result {
            color: #d32f2f;
            font-weight: 600;
            font-size: 18px;
        }
        
        .footer {
            text-align: center;
            padding: 20px;
            color: #666;
            font-size: 14px;
            background: #f8f9fa;
            margin-top: 30px;
        }
        .footer a{
            
            color: #666;  text-decoration: none;

     
        }
              .footer a:hover{
            
            color: #ff0000;  

     
        }
        
        .copy-success {
            position: fixed;
            top: 30%;
            left: 50%;
            transform: translate(-50%, -50%) scale(0.8);
            background: rgba(46, 204, 113, 0.95);
            color: white;
            padding: 15px 30px;
            border-radius: 8px;
            box-shadow: 0 8px 24px rgba(0,0,0,0.3);
            z-index: 9999;
            opacity: 0;
            transition: all 0.3s ease;
            text-align: center;
            font-size: 18px;
            font-weight: 600;
        }
        
        .copy-success.show {
            opacity: 1;
            transform: translate(-50%, -50%) scale(1);
        }

        .mobile-menu {
            position: fixed;
            top: 0;
            left: -280px;
            width: 280px;
            height: 100vh;
            background: #fff;
            box-shadow: 2px 0 10px rgba(0,0,0,0.2);
            padding-top: 70px;
            transition: left 0.3s ease;
            z-index: 9999;
        }

        .mobile-menu.active {
            left: 0;
        }

        .mobile-nav-list {
            list-style: none;
            padding: 0 20px;
        }

        .mobile-nav-list li {
            border-bottom: 1px solid #eee;
        }

        .mobile-nav-list li a {
            display: block;
            padding: 15px 0;
            color: #333;
            text-decoration: none;
            font-size: 16px;
        }

        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 9998;
        }

        .overlay.active {
            opacity: 1;
            visibility: visible;
        }
        
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: #4361ee;
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 9999;
        }
        
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }
        
        .back-to-top:hover {
            background: #3a56d4;
        }
        
        @media (max-width: 1024px) {
            .container {
                width: 100%;
                padding: 20px;
            }

            .menu-btn {
                display: flex;
            }

            .nav-bar {
                display: none;
            }
            
            .result-table th, .result-table td {
                padding: 12px;
            }
            
            .label-with-options {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            
            textarea {
                font-size: 22px;
                line-height: 1.5;
            }
            
            textarea::placeholder {
                font-size: 16px;
            }
            
            .amount-text, .capital-text {
                font-size: 18px;
            }
            
            .copy-btn {
                padding: 6px 10px;
                font-size: 13px;
            }
            
            .copy-success {
                padding: 12px 24px;
                font-size: 16px;
                min-width: 200px;
            }
            
            .char-grid {
                gap: 15px;
            }
            
            .char-box {
                width: 60px;
            }
            
            .char-big {
                width: 55px;
                height: 55px;
                font-size: 32px;
            }
            
            .char-small {
                font-size: 14px;
            }
            
            .char-red {
                font-size: 16px;
            }
            
            .knowledge-content {
                font-size: 14px;
            }

            .common-amount-table th,
            .common-amount-table td {
                padding: 10px 12px;
                font-size: 14px;
            }
            
            .back-to-top {
                width: 45px;
                height: 45px;
                font-size: 20px;
                bottom: 20px;
                right: 20px;
            }
            
            .history-conversion-section {
                padding: 15px;
            }
            
            .history-title {
                font-size: 16px;
            }
            
            .history-numbers {
                font-size: 14px;
            }
            
            .auto-convert-tip {
                padding: 12px;
            }
            
            .auto-convert-tip h3 {
                font-size: 16px;
            }
            
            .auto-convert-tip p {
                font-size: 14px;
            }
            
            .auto-convert-result {
                font-size: 16px;
            }
           
        } .zhuan{
                display: none;
            }
                    h1 {font-size: 36px;margin-top: 20px;margin-bottom: 10px;text-align: center;}
        h2 {font-size: 20px;margin-top: 20px;margin-bottom: 10px;text-align: left;}