/* 页面横幅样式 */
.page-banner {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
    margin-bottom: 2rem;
}

.page-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* 课程特色部分 */
.course-features {
    padding: 2rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.feature-item {
    text-align: center;
    padding: 2rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-item h3 {
    color: #4a6741;
    margin-bottom: 1rem;
}

.feature-item p {
    color: #666;
}

/* 课程列表部分 */
.course-list {
    padding: 2rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.courses-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.course-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s ease;
}

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

.course-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-content {
    padding: 1.5rem;
}

.course-content h3 {
    color: #4a6741;
    margin-bottom: 1rem;
}

.course-desc {
    color: #666;
    margin-bottom: 1rem;
}

.course-details {
    list-style: none;
    padding: 0;
    margin-bottom: 1.5rem;
}

.course-details li {
    color: #666;
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.course-details li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #4a6741;
}

.enroll-btn {
    display: block;
    width: 100%;
    padding: 0.8rem;
    background: #4a6741;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.enroll-btn:hover {
    background: #3a5233;
}

/* 报名表单模态框 */
.enroll-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.modal-content {
    position: relative;
    background: #fff;
    width: 90%;
    max-width: 500px;
    margin: 2rem auto;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: #666;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
}

.submit-btn {
    display: block;
    width: 100%;
    padding: 1rem;
    background: #4a6741;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s ease;
}

.submit-btn:hover {
    background: #3a5233;
}

/* 响应式设计 */
@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .courses-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}