/* 讲师页面样式 */
.lecturer-page {
    padding-top: 70px;
}

/* 页面标题区域 */
.page-hero {
    height: 400px;
    background: linear-gradient(rgba(0, 0, 0, 0.267), rgba(0, 0, 0, 0.415)), url('../image/banner1.jpg');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.5rem;
    opacity: 0.9;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 讲师分类 */
.lecturer-categories {
    padding: 2rem 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}

.category-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.category-tab {
    padding: 0.8rem 1.5rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.category-tab:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.category-tab.active {
    background: #ffc801;
    color: #333;
}

/* 讲师列表 */
.lecturer-list {
    padding: 4rem 0;
    background: var(--bg-primary);
}

.lecturer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.lecturer-card {
    cursor: pointer;
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease;
}

.lecturer-card:hover {
    transform: translateY(-5px);
}

.lecturer-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.lecturer-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.lecturer-card:hover .lecturer-image img {
    transform: scale(1.05);
}

.lecturer-info {
    padding: 1.5rem;
}

.lecturer-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.lecturer-info .title {
    color: #ffc801;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.lecturer-info .description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tags span {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .process-steps {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .process-step:not(:last-child)::after {
        display: none;
    }

    .category-tabs {
        flex-direction: column;
        align-items: center;
    }

    .category-tab {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
}