/* ========================================
   sec-header 通用标题组件样式
   命名空间：sec- ，可安全嵌入任何板块
   ======================================== */
.sec-header {
    text-align: center;
    margin-bottom: 40px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    line-height: 1.5;
}

.sec-header-label {
    display: inline-block;
    font-size: 0.8rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #1e56a0;          /* 主题蓝色 */
    margin-bottom: 8px;
    font-weight: 600;
}

.sec-header-title {
    font-size: 2rem;
    font-weight: 700;
    color: #1e293b;
    margin: 0;
    letter-spacing: 0.04em;
}

.sec-header-line {
    display: block;
    width: 48px;
    height: 3px;
    background: #1e56a0;
    margin: 14px auto 0;
    border: none;
    border-radius: 2px;
}

/* 移动端适当缩小 */
@media (max-width: 768px) {
    .sec-header {
        margin-bottom: 32px;
    }
    .sec-header-title {
        font-size: 1.6rem;
    }
}