.group-structure {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;               /* 卡片间距 */
    margin: 30px 0 10px;
}

/* -------------------- 通用卡片样式 -------------------- */
.group-card {
    flex: 1 1 280px;          /* 基础宽度280px，可伸缩换行 */
    background: #f8faff;
    border-radius: 16px;
    padding: 25px 20px;
    box-shadow: 0 8px 20px rgba(0, 40, 100, 0.06);
    transition: all 0.2s ease;
    border: 1px solid #e9edf5;
}

.group-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(0, 60, 120, 0.1);
    border-color: #cbd6e9;
}

/* 卡片内公司主名称 (如“浙江明骏”) */
.group-card .company-name {
    font-size: 2.4rem;        /* 与rem适配，根字体由 calculateFontSize 控制 */
    font-weight: 600;
    color: #002b5c;
    margin-bottom: 6px;
    line-height: 1.2;
}

/* 卡片内副标题/分公司后缀 (如“供应链管理有限公司”) */
.group-card .company-sub {
    font-size: 1.4rem;
    color: #3a5f8b;
    border-bottom: 2px solid #dce3f0;
    padding-bottom: 10px;
    margin-bottom: 12px;
    font-weight: 500;
}

/* 卡片描述文字 */
.group-card .company-desc {
    font-size: 1.4rem;
    line-height: 1.6;
    color: #2f4050;
    margin-bottom: 0;
}

/* 卡片底部地址/区域行 */
.group-card .company-location {
    margin-top: 15px;
    color: #4d7eb3;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.group-card .company-location i {
    font-size: 1.5rem;
    width: 1.8rem;
    color: #2a5f9a;
}

/* -------------------- 综述区块 (集团网络介绍) -------------------- */
.group-summary {
    margin: 35px 0 25px;
    background: linear-gradient(145deg, #f0f5fe, #ffffff);
    padding: 25px 30px;
    border-radius: 30px;
    border: 1px solid #e2ebf6;
}

.group-summary h3 {
    color: #002b5c;
    font-weight: 600;
    margin-bottom: 15px;
    font-size: 2rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.group-summary h3 i {
    color: #1d6fb0;
    font-size: 2.2rem;
}

.group-summary p {
    font-size: 1.5rem;
    line-height: 1.7;
    color: #2a405c;
    margin-bottom: 15px;
}

.group-summary .highlight {
    font-size: 1.5rem;
    color: #1f4973;
    margin-top: 15px;
    font-weight: 500;
}

/* -------------------- 联系信息条 (与集团架构呼应) -------------------- */
.group-contact-bar {
    border-left: 6px solid #003c78;
    background: #f2f6fc;
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 25px;
}

.group-contact-bar p {
    font-size: 1.5rem;
    margin: 0;
    color: #1e3a6b;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.group-contact-bar i {
    color: #0f4c81;
    font-size: 1.8rem;
    width: 2.4rem;
}

/* -------------------- 原 aboutnr 内部微调 (确保内边距合适) -------------------- */
.aboutnr {
    padding: 0 25px;          /* 与左右保持呼吸感 */
}

.aboutnr h1 {
    margin-left: 0;           /* 覆盖原行内样式 */
    font-size: 3rem;
    color: #002b5c;
    font-weight: 600;
    letter-spacing: 1px;
}

.aboutwen {
    margin-top: 20px;
}

/* -------------------- 响应式微调 -------------------- */
@media (max-width: 768px) {
    .group-card {
        flex: 1 1 100%;        /* 手机下单列显示 */
    }
    .group-summary {
        padding: 20px 18px;
    }
    .group-summary h3 {
        font-size: 1.8rem;
    }
    .group-contact-bar p {
        font-size: 1.4rem;
        flex-direction: column;
        align-items: flex-start;
    }
    .aboutnr h1 {
        font-size: 2.6rem;
    }
}

@media (max-width: 480px) {
    .group-card .company-name {
        font-size: 2.2rem;
    }
    .group-card .company-sub {
        font-size: 1.3rem;
    }
    .group-summary {
        padding: 18px 15px;
    }
}