/* 全局样式重置和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 头部样式 */
header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
}

header h1 {
    color: #2c3e50;
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 10px;
}

/* 主要内容样式 */
main {
    flex: 1;
}

/* 输入区域样式 */
.input-section {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.input-group label {
    font-weight: 600;
    color: #2c3e50;
    font-size: 1.1rem;
}

.input-group input {
    padding: 15px;
    border: 2px solid #e1e8ed;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.input-group button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.input-group button:hover {
    background-color: #2980b9;
}

.input-group button:active {
    transform: translateY(1px);
}

/* 结果区域样式 */
.result-section {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

/* 加载状态样式 */
#loading {
    text-align: center;
    padding: 50px 20px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

/* 错误信息样式 */
.error {
    background-color: #fee;
    border: 1px solid #fcc;
    color: #c33;
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 20px;
}

/* 结果内容样式 */
#result-content h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.result-item {
    background-color: #f9f9f9;
    padding: 15px;
    border-radius: 6px;
    border: 1px solid #e1e8ed;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.result-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.result-item.full-width {
    grid-column: 1 / -1;
}

.result-item strong {
    color: #2c3e50;
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.result-item span,
.result-item div {
    color: #555;
    word-break: break-word;
    line-height: 1.7;
}

/* 多行文本样式 */
.result-item span br {
    margin-bottom: 6px;
}

/* 预格式化文本样式 */
.result-item pre {
    background-color: #f0f2f5;
    border-radius: 4px;
    padding: 15px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

/* 格式化显示的键值对样式 */
.certificate-field {
    margin-bottom: 6px;
}

.certificate-field-label {
    font-weight: 500;
    color: #2c3e50;
}

.certificate-field-value {
    color: #555;
}

/* 底部样式 */
footer {
    text-align: center;
    padding: 30px 0;
    margin-top: 50px;
    color: #7f8c8d;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .input-section,
    .result-section {
        padding: 20px;
    }
    
    .result-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 15px;
    }
    
    header h1 {
        font-size: 1.5rem;
    }
    
    .input-group button {
        padding: 12px 20px;
    }
}

/* 隐藏元素的通用类 */
.hidden {
    display: none !important;
}