/* ============================================
   公共页面顶部样式
   包含：面包屑导航、页面标题、分类导航
   设计风格参考：实训风采页面
   ============================================ */

/* 面包屑导航 */
.breadcrumb {
    background: #f5f5f5;
    padding: 15px 0;
    font-size: 14px;
}
.breadcrumb .wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}
.breadcrumb a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}
.breadcrumb a:hover {
    color: #00b0a0;
}
.breadcrumb span {
    color: #999;
    margin: 0 8px;
}
.breadcrumb .current {
    color: #00b0a0;
}

/* 页面标题 */
.mainer > .wrap > .title {
    text-align: center;
    margin-bottom: 30px;
    position: relative;
}
.mainer > .wrap > .title h3 {
    font-size: 28px;
    color: #333;
    font-weight: normal;
    position: relative;
    z-index: 9;
}
.mainer > .wrap > .title label {
    display: block;
    height: 3px;
    width: 50px;
    background: #00b0a0;
    margin: 15px auto 0;
}
.mainer > .wrap > .title span {
    display: block;
    font-size: 60px;
    color: #f0f2f5 !important;
    text-transform: uppercase;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    letter-spacing: 3px;
    z-index: 1;
    font-weight: bold;
}

/* 分类导航 */
.class_nav {
    background: #fff;
    margin-bottom: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.class_nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
}
.class_nav li {
    padding: 12px 25px;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}
.class_nav li a {
    color: #666;
    text-decoration: none;
    font-size: 15px;
}
.class_nav li:hover a,
.class_nav li.on a {
    color: #00b0a0;
}
.class_nav li.on::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: #00b0a0;
    border-radius: 3px;
}
.class_nav .clear {
    clear: both;
}

/* 响应式 */
@media (max-width: 768px) {
    .mainer > .wrap > .title h3 {
        font-size: 22px;
    }
    .mainer > .wrap > .title span {
        font-size: 36px;
    }
    .class_nav li {
        padding: 10px 15px;
    }
    .class_nav li a {
        font-size: 13px;
    }
}