/* about_us */
.about-us {
    padding: 60px 0;
    max-width: 1600px;
    margin: 0 auto;
}

.about-hero {
    display: grid;

    gap: 40px;
    align-items: stretch; /* 确保子元素高度一致 */
    margin: 0 auto;
    padding: 0 20px;
}

.pic {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
    transform: perspective(1000px) rotateY(5deg);
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.pic:hover {
    transform: perspective(1000px) rotateY(0);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.pic img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.7s ease;
    object-fit: cover;
    object-position: center;
}

.pic:hover img {
    transform: scale(1.08);
}

.pic-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(26, 94, 99, 0.15),
        rgba(16, 185, 129, 0.05)
    );
    z-index: 1;
}

.introduction {
    padding: 30px;
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    position: relative;
    height: 100%; /* 继承父容器高度 */
    box-sizing: border-box; /* 确保内边距不影响整体高度 */
}

.introduction::before {
    content: "";
    position: absolute;
    top: -15px;
    left: -15px;
    right: -15px;
    bottom: -15px;
    border: 1px solid rgba(26, 94, 99, 0.1);
    border-radius: 20px;
    z-index: -1;
}

.section-tag {
    display: inline-block;
    padding: 5px 15px;
    background-color: rgba(26, 94, 99, 0.1);
    color: #1a5e63;
    font-size: 0.85rem;
    border-radius: 30px;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.introduction h2 {
    color: #1e293b;
    font-size: 2.2rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
    line-height: 1.2;
}

.introduction h2::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 4px;
    background-color: #10b981;
    border-radius: 2px;
}

.divider {
    width: 100%;
    height: 1px;
    background-color: rgba(0, 0, 0, 0.05);
    margin: 25px 0;
}

.introduction p {
    color: #475569;
    line-height: 1.8;
    margin-bottom: 20px;
    font-size: 1.05rem;
    text-align: left;
}

.read-more-btn {
    display: inline-block;
    padding: 12px 28px;
    background-color: #1a5e63;
    color: #fff;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    margin-top: 15px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(26, 94, 99, 0.2);
}

.read-more-btn:hover {
    background-color: #154c50;
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(26, 94, 99, 0.25);
}

.read-more-btn:active {
    transform: translateY(-1px);
}
@media (min-width: 1366px) {
    .about-hero {
        grid-template-columns: 1fr 1.2fr;
    }
}