/* 全局样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f4f7f9;
    color: #333;
    margin: 0;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
}

/* 主容器 */
#fingerprint-container {
    max-width: 900px;
    margin: 0 auto;
}

/* 卡片样式 */
.fp-card {
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    margin-bottom: 20px;
    overflow: hidden; /* 保证子元素的圆角生效 */
}

.fp-card-header {
    background-color: #3498db;
    color: white;
    padding: 12px 20px;
    font-size: 1.2em;
    font-weight: 600;
    text-transform: capitalize; /* 首字母大写 */
}

.fp-card-body {
    padding: 20px;
}

/* 键值对项目 */
.fp-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #ecf0f1;
    font-size: 0.95em;
}
.fp-item:last-child {
    border-bottom: none;
}

.fp-key {
    font-weight: 500;
    color: #555;
    margin-right: 20px;
    flex-shrink: 0; /* 防止key被压缩 */
}

.fp-value {
    color: #2c3e50;
    word-break: break-all; /* 处理长字符串，防止溢出 */
    text-align: right;
}

/* 嵌套对象样式 */
.fp-nested-object {
    margin-top: 10px;
    padding-left: 20px;
    border-left: 2px solid #3498db;
}

/* 加载动画 */
.loading {
    text-align: center;
    padding: 50px;
    font-size: 1.2em;
    color: #7f8c8d;
}
.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); }
}