/* ========== 关于我们页面样式 ========== */

/* Hero 区域 */
.about-hero {
    margin-top: 70px;
}

.about-hero img {
    width: 100%;
    display: block;
}

/* 课程简介 */
.course-intro-section {
    width: 100%;
}

.course-intro-section img {
    width: 100%;
    display: block;
}

/* 精品课优势 */
.course-advantages {
    padding: 60px 0;
    background: var(--white);
}

.course-adv-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.course-adv-card {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s;
}

.course-adv-card:hover {
    transform: translateY(-8px);
}

.course-adv-card img {
    width: 100%;
    display: block;
}

/* 全幅图片区域 */
.test-paper-section,
.voucher-section,
.learning-path-section {
    width: 100%;
}

.test-paper-section img,
.voucher-section img,
.learning-path-section img {
    width: 100%;
    display: block;
}

/* 资质证书 */
.certificate-section {
    padding: 80px 0;
    background: var(--white);
}

.certificate-img {
    max-width: 800px;
    margin: 0 auto;
}

.certificate-img img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

/* 响应式 */
@media (max-width: 768px) {
    .course-adv-list {
        grid-template-columns: 1fr;
    }
}