* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 2.5em;
}

h3 {
    color: #34495e;
    margin-bottom: 15px;
    font-size: 1.3em;
}

/* 控制区域样式 */
.control-section,
.data-section {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.port-controls {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: nowrap;
}

.port-controls label {
    font-weight: bold;
    color: #2c3e50;
}

/* 自定义端口选择框样式 */
.port-select-wrapper {
    position: relative;
    display: inline-block;
    flex: 1;
    min-width: 100px;
}

#portSelect {
    padding: 8px 12px;
    border: 2px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    min-width: 100px;
    background-color: white;
    width: 100%;
}

#portSelect:focus {
    outline: none;
    border-color: #3498db;
}

.port-options {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    max-height: 200px;
    overflow-y: auto;
    display: none;
}

.port-options.show {
    display: block;
}

.port-option {
    padding: 8px 12px;
    cursor: pointer;
    border-bottom: 1px solid #eee;
}

.port-option:hover {
    background-color: #f5f5f5;
}

.port-option:last-child {
    border-bottom: none;
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-left: auto;
}

.btn-group .btn {
    padding: 12px 12px ;
    flex: 0 0 auto;
    min-width: 100px;
}

/* 当按钮组单独占一行时，让按钮平均分布并拉伸 */
@media (max-width: 768px) {
    .btn-group {
        width: 100%;
        margin-left: 0;
        margin-top: 10px;
    }
    
    .btn-group .btn {
        flex: 1;
        min-width: 0;
    }
}

/* 当容器空间不足时，按钮组换行并拉伸 */
@container (max-width: 600px) {
    .port-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn-group {
        width: 100%;
        margin-left: 0;
        margin-top: 10px;
    }
    
    .btn-group .btn {
        flex: 1;
        min-width: 0;
    }
}

/* 为了支持容器查询，需要给父容器添加容器上下文 */
.port-controls {
    container-type: inline-size;
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

/* 按钮样式 */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    transition: all 0.3s ease;
    text-transform: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-primary {
    background-color: #3498db;
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background-color: #2980b9;
}

.btn-secondary {
    background-color: #95a5a6;
    color: white;
}

.btn-secondary:hover:not(:disabled) {
    background-color: #7f8c8d;
}

.btn-warning {
    background-color: #f39c12;
    color: white;
}

.btn-warning:hover:not(:disabled) {
    background-color: #e67e22;
}

.btn-info {
    background-color: #17a2b8;
    color: white;
}

.btn-info:hover:not(:disabled) {
    background-color: #138496;
}

.btn-success {
    background-color: #27ae60;
    color: white;
}

.btn-success:hover:not(:disabled) {
    background-color: #229954;
}

/* 数据控制区域 */
.data-controls {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.input-group {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.input-group label {
    font-weight: bold;
    color: #2c3e50;
    min-width: 80px;
}

.input-group input {
    flex: 1;
    padding: 8px 12px;
    border: 2px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    min-width: 200px;
}

.input-group input:focus {
    outline: none;
    border-color: #3498db;
}

/* 复选框控制区域 */
.checkbox-section {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* 日志区域样式 */
.log-section {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* 复选框组样式 */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 5px;
    border: 1px solid #e9ecef;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    font-weight: 500;
    color: #495057;
    cursor: pointer;
    user-select: none;
}

.checkbox-group input[type="checkbox"] {
    margin-right: 8px;
    transform: scale(1.2);
}

/* 数据表格样式 */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
    background-color: white;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.data-table th,
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

.data-table th {
    background-color: #3498db;
    color: white;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table tr:nth-child(even) {
    background-color: #f8f9fa;
}

.data-table tr:hover {
    background-color: #e9f7fe;
}

.data-table td {
    color: #495057;
}

.log-output {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 15px;
    border-radius: 4px;
    height: 400px;
    overflow-y: auto;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    line-height: 1.4;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.log-output::-webkit-scrollbar {
    width: 8px;
}

.log-output::-webkit-scrollbar-track {
    background: #34495e;
}

.log-output::-webkit-scrollbar-thumb {
    background: #7f8c8d;
    border-radius: 4px;
}

.log-output::-webkit-scrollbar-thumb:hover {
    background: #95a5a6;
}

/* 日志消息样式 */
.log-message {
    margin-bottom: 5px;
    padding: 2px 0;
}

.log-message.info {
    color: #3498db;
}

.log-message.success {
    color: #27ae60;
}

.log-message.warning {
    color: #f39c12;
}

.log-message.error {
    color: #e74c3c;
}

.log-message.read {
    color: #17a2b8;
}

.log-message.write {
    color: #27ae60;
}

.log-message.open {
    color: #f39c12;
}

.log-message.close {
    color: #e74c3c;
}

/* 状态区域 */
.status-section {
    text-align: center;
    padding: 10px;
}

.status {
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 14px;
}

.status.connected {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.status.disconnected {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .port-controls {
        flex-direction: row;
        align-items: center;
        flex-wrap: wrap;
        gap: 10px;
    }

    .port-controls>* {
        margin-bottom: 0;
    }

    .input-group {
        flex-direction: column;
        align-items: stretch;
    }

    .input-group label {
        min-width: auto;
    }

    .input-group input {
        min-width: auto;
    }

    .log-output {
        height: 300px;
        font-size: 12px;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

.log-message {
    animation: fadeIn 0.3s ease-out;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

    100% {
        transform: rotate(360deg);
    }
}