.group-architecture {
    max-width: 1300px;
    margin: 0 auto;
    padding: 30px 15px 50px;
    position: relative;
    background: linear-gradient(135deg, #f9fcff 0%, #f0f5fa 100%);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,20,40,0.1);
}

/* 集团头部 */
.group-header {
    text-align: center;
    margin-bottom: 30px;
    position: relative;
}

.group-name {
    font-size: 48px;
    font-weight: 700;
    color: #0a2540;
    position: relative;
    display: inline-block;
    padding-bottom: 15px;
    letter-spacing: 1px;
}

.group-name:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #1a4a7a, #3a8fd5);
    border-radius: 3px;
}

.group-sub {
    font-size: 18px;
    color: #2a4d6e;
    margin-top: 15px;
    font-weight: 300;
    letter-spacing: 4px;
    text-transform: uppercase;
}

/* 图文混合布局 - 使用原图片 */
.about-showcase {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0,0,0,0.05);
}

.about-text {
    flex: 1.2;
    padding: 35px 30px;
    line-height: 1.8;
    color: #2c3e50;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 15px;
    text-align: justify;
}

.about-text strong {
    color: #1a4a7a;
    font-weight: 600;
}

.about-image {
    flex: 0.8;
    min-height: 350px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* 分公司网格 - 简化版卡片 */
.company-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.company-card {
    background: white;
    border-radius: 16px;
    padding: 22px 20px;
    box-shadow: 0 8px 20px rgba(0,20,40,0.04);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #eef2f6;
}

.company-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26,62,111,0.1);
    border-color: #c44536;
}

.company-name {
    font-size: 18px;
    font-weight: 600;
    color: #1a3e6f;
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 1px solid #e0e7ed;
}

.company-info p {
    margin: 10px 0;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 14px;
    color: #3a4a5a;
}

.company-info i {
    display: inline-block;
    width: 20px;
    font-style: normal;
}

.tel {
    color: #c44536;
    font-weight: 500;
    background: rgba(196,69,54,0.05);
    padding: 2px 10px;
    border-radius: 20px;
}

.address {
    line-height: 1.5;
}

/* 主卡片高亮 */
.main-card {
    border-left: 3px solid #1a4a7a;
    background: #fafcff;
}

/* 响应式 */
@media (max-width: 992px) {
    .about-showcase { flex-direction: column; }
    .about-image { min-height: 250px; }
    .company-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .company-grid { grid-template-columns: 1fr; }