/* ========== 关于我们页面独立样式（作用域 .about-us-page） ========== */
    .about-us-page {
        font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        color: #1a1a1a;
        line-height: 1.7;
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 20px;
        box-sizing: border-box;
        --brand-blue: #0d3b66;
        --brand-deep: #07273f;
        --brand-accent: #f28c38;
        --text-mid: #3d3d3d;
        --text-light: #6b6b6b;
        --border-soft: #e0e7ef;
        --bg-light: #f9fafb;
        --radius-md: 10px;
        --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
        --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
        --transition-fast: 0.2s ease;
    }
    .about-us-page *,
    .about-us-page *::before,
    .about-us-page *::after {
        box-sizing: border-box;
    }
    .about-us-page a {
        color: var(--brand-accent);
        text-decoration: none;
        transition: color var(--transition-fast);
    }
    .about-us-page a:hover {
        color: var(--brand-blue);
        text-decoration: underline;
    }
    .about-us-page img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    /* 图片容器防崩 */
    .about-us-page .img-container {
        position: relative;
        width: 100%;
        overflow: hidden;
        background: #eef3f8;
        border-radius: var(--radius-md);
    }
    .about-us-page .img-container img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.4s ease;
    }
    .about-us-page .img-container:hover img {
        transform: scale(1.03);
    }
    .about-us-page .aspect-16-9 { aspect-ratio: 16 / 9; }
    .about-us-page .aspect-4-3 { aspect-ratio: 4 / 3; }
    .about-us-page .aspect-1-1 { aspect-ratio: 1 / 1; }

    /* 页面标题区 */
    .about-us-page .page-header {
        text-align: center;
        padding: 60px 0 40px;
    }
    .about-us-page .page-header h1 {
        font-size: 2.2rem;
        font-weight: 700;
        color: var(--brand-deep);
        margin-bottom: 12px;
        letter-spacing: 0.03em;
    }
    .about-us-page .page-header .subtitle {
        font-size: 1.05rem;
        color: var(--text-light);
        letter-spacing: 0.04em;
    }
    .about-us-page .page-header .divider {
        display: block;
        width: 60px;
        height: 3px;
        background: var(--brand-accent);
        margin: 16px auto 0;
        border-radius: 2px;
    }

    /* 通用区块 */
    .about-us-page .section-block {
        padding: 50px 0;
    }
    .about-us-page .section-title {
        text-align: center;
        margin-bottom: 36px;
    }
    .about-us-page .section-title h2 {
        font-size: 1.8rem;
        font-weight: 700;
        color: var(--brand-deep);
        margin-bottom: 6px;
    }
    .about-us-page .section-title .sub {
        font-size: 0.95rem;
        color: var(--text-light);
    }
    .about-us-page .section-title .divider {
        width: 50px;
        height: 3px;
        background: var(--brand-accent);
        margin: 10px auto 0;
        border-radius: 2px;
    }

    /* 企业简介 - 图文混排 */
    .about-us-page .intro-grid {
        display: flex;
        flex-wrap: wrap;
        gap: 36px;
        align-items: center;
    }
    .about-us-page .intro-grid .intro-text {
        flex: 1 1 400px;
    }
    .about-us-page .intro-grid .intro-text p {
        margin-bottom: 16px;
        font-size: 0.95rem;
        color: var(--text-mid);
        line-height: 1.8;
    }
    .about-us-page .intro-grid .intro-img {
        flex: 1 1 300px;
        max-width: 480px;
    }

    /* 文化卡片 */
    .about-us-page .culture-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: 18px;
    }
    .about-us-page .culture-card {
        background: #fff;
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-md);
        padding: 24px 18px;
        text-align: center;
        transition: all var(--transition-fast);
    }
    .about-us-page .culture-card:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-3px);
    }
    .about-us-page .culture-card .culture-icon {
        width: 52px;
        height: 52px;
        border-radius: 50%;
        background: #e8f2fa;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.6rem;
        margin: 0 auto 14px;
        color: var(--brand-blue);
    }
    .about-us-page .culture-card h4 {
        font-size: 1.05rem;
        font-weight: 600;
        color: var(--brand-deep);
        margin-bottom: 8px;
    }
    .about-us-page .culture-card p {
        font-size: 0.85rem;
        color: var(--text-light);
        line-height: 1.5;
    }

    /* 发展历程 - 时间轴 */
    .about-us-page .timeline {
        position: relative;
        max-width: 800px;
        margin: 0 auto;
        padding-left: 40px;
    }
    .about-us-page .timeline::before {
        content: '';
        position: absolute;
        left: 18px;
        top: 8px;
        bottom: 8px;
        width: 2px;
        background: var(--border-soft);
    }
    .about-us-page .timeline-item {
        position: relative;
        margin-bottom: 28px;
        padding-left: 24px;
    }
    .about-us-page .timeline-item::before {
        content: '';
        position: absolute;
        left: -28px;
        top: 6px;
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background: var(--brand-blue);
        border: 2px solid #fff;
        box-shadow: 0 0 0 2px var(--brand-blue);
    }
    .about-us-page .timeline-item .year {
        font-weight: 700;
        font-size: 1.1rem;
        color: var(--brand-accent);
        margin-bottom: 4px;
    }
    .about-us-page .timeline-item .desc {
        font-size: 0.9rem;
        color: var(--text-mid);
    }

    /* 资质荣誉 */
    .about-us-page .cert-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 16px;
    }
    .about-us-page .cert-item {
        background: #fff;
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-md);
        padding: 16px 10px;
        text-align: center;
        transition: all var(--transition-fast);
    }
    .about-us-page .cert-item:hover {
        box-shadow: var(--shadow-sm);
    }
    .about-us-page .cert-item .cert-img {
        width: 80px;
        height: 80px;
        margin: 0 auto 10px;
        background: #f0f3f7;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 2rem;
    }
    .about-us-page .cert-item .cert-name {
        font-weight: 600;
        font-size: 0.9rem;
        color: var(--brand-deep);
    }

    /* 团队展示 */
    .about-us-page .team-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: 20px;
    }
    .about-us-page .team-card {
        background: #fff;
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-md);
        overflow: hidden;
        text-align: center;
        transition: all var(--transition-fast);
    }
    .about-us-page .team-card:hover {
        box-shadow: var(--shadow-md);
    }
    .about-us-page .team-card .team-avatar {
        width: 100%;
        aspect-ratio: 1 / 1;
        background: #eef3f8;
        overflow: hidden;
    }
    .about-us-page .team-card .team-avatar img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .about-us-page .team-card .team-info {
        padding: 12px;
    }
    .about-us-page .team-card .team-name {
        font-weight: 600;
        font-size: 0.95rem;
        color: var(--brand-deep);
    }
    .about-us-page .team-card .team-role {
        font-size: 0.78rem;
        color: var(--text-light);
        margin-top: 2px;
    }

    /* 合作品牌 */
    .about-us-page .brand-grid {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 24px;
        align-items: center;
    }
    .about-us-page .brand-item {
        width: 100px;
        height: 60px;
        background: #fff;
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-md);
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 10px;
        transition: all var(--transition-fast);
    }
    .about-us-page .brand-item:hover {
        box-shadow: var(--shadow-sm);
        border-color: #c5d5e5;
    }
    .about-us-page .brand-item img {
        max-width: 80%;
        max-height: 80%;
        object-fit: contain;
    }

    /* CTA区域 */
    .about-us-page .cta-block {
        background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-deep) 100%);
        color: #fff;
        border-radius: var(--radius-md);
        padding: 36px;
        text-align: center;
        margin-top: 30px;
    }
    .about-us-page .cta-block h3 {
        font-size: 1.5rem;
        font-weight: 700;
        margin-bottom: 8px;
    }
    .about-us-page .cta-block p {
        font-size: 0.95rem;
        opacity: 0.9;
        margin-bottom: 20px;
    }
    .about-us-page .btn-cta {
        display: inline-block;
        padding: 12px 28px;
        background: var(--brand-accent);
        color: #fff;
        border-radius: 30px;
        text-decoration: none;
        font-weight: 600;
        font-size: 0.95rem;
        transition: all var(--transition-fast);
    }
    .about-us-page .btn-cta:hover {
        background: #e07a2a;
        transform: translateY(-2px);
        box-shadow: 0 6px 16px rgba(242,140,56,0.4);
        text-decoration: none;
        color: #fff;
    }

    /* 响应式微调 */
    @media (max-width: 640px) {
        .about-us-page .page-header h1 { font-size: 1.6rem; }
        .about-us-page .section-title h2 { font-size: 1.4rem; }
        .about-us-page .intro-grid { flex-direction: column; }
        .about-us-page .timeline { padding-left: 28px; }
    }