/* ═══ 全局重置 ═══ */
    body { margin: 0; font-family: "Microsoft YaHei", Arial, sans-serif; }
    :root {
        --primary: #da251c;
        --text-dark: #333;
        --text-gray: #666;
        --bg-light: #f5f5f5;
        --max-w: 1200px;
    }

    /* ═══ 内页 Banner ═══ */
    .page-banner { position: relative; width: 100%; overflow: hidden; height: 300px; }
    .page-banner img { width: 100%; height: 100%; display: block; object-fit: cover; }
    .page-banner .banner-overlay {
        position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
        text-align: center; z-index: 2;
    }
    .page-banner .banner-overlay h1 {
        color: #fff; font-size: 36px; font-weight: bold;
        text-shadow: 0 2px 8px rgba(0,0,0,0.3); margin: 0;
    }

    /* ═══ 子导航 + 面包屑 ═══ */
    .page-subnav {
        background: #fff;
        border-bottom: 1px solid #eee;
    }
    .page-subnav .subnav-inner {
        display: flex; align-items: center; justify-content: space-between;
        max-width: var(--max-w); margin: 0 auto; padding: 0 15px;
    }
    .page-subnav .subnav-list {
        display: flex; list-style: none; margin: 0; padding: 0;
        gap: 4px;
    }
    .page-subnav .subnav-list li { margin: 0; }
    .page-subnav .subnav-list a {
        display: block; padding: 14px 20px;
        font-size: 15px; color: var(--text-dark);
        text-decoration: none; transition: all 0.3s;
        border-bottom: 2px solid transparent;
    }
    .page-subnav .subnav-list a:hover,
    .page-subnav .subnav-list .active a {
        color: #da251c;
        border-bottom-color: #da251c;
    }
    .page-subnav .breadcrumb {
        display: flex; align-items: center; gap: 6px;
        font-size: 13px; color: #999;
    }
    .page-subnav .breadcrumb a { color: #999; text-decoration: none; }
    .page-subnav .breadcrumb a:hover { color: var(--text-dark); }
    .page-subnav .breadcrumb .sep { color: #ccc; }

    /* ═══ 关于内容 ═══ */
    .about-content { padding: 50px 0; }
    .about-content:nth-child(even) { background: var(--bg-light); }
    .about-content .content-inner {
        max-width: var(--max-w); margin: 0 auto; padding: 0 15px;
    }
    .about-content .content-title {
        font-size: 28px; color: var(--text-dark); font-weight: bold;
        margin: 0 0 10px; line-height: 1.4;
    }
    .about-content .content-divider {
        border: none; border-top: 3px solid var(--primary);
        width: 60px; margin: 0 0 30px;
    }

    /* 图文布局（intro） */
    .about-content .content-body {
        display: flex; gap: 40px; align-items: flex-start;
    }
    .about-content .content-text {
        flex: 1; font-size: 15px; color: var(--text-gray);
        line-height: 1.8; min-width: 0;
    }
    .about-content .content-text p { margin: 0 0 15px; }
    .about-content .content-image {
        flex: 0 0 400px; max-width: 100%;
    }
    .about-content .content-image img {
        width: 100%; height: auto; display: block; border-radius: 6px;
    }

    /* 数据统计 */
    .stats-wrap {
        display: flex; flex-wrap: wrap; justify-content: center; gap: 30px;
        padding: 40px 20px; background: linear-gradient(135deg, #1C2B3A, #2a4050);
        border-radius: 12px;
    }
    .stats-wrap .stat-item { text-align: center; flex: 1 1 200px; max-width: 280px; }
    .stats-wrap .stat-num {
        font-size: 52px; font-weight: 800; color: #FF8C42; line-height: 1;
        font-family: Arial, sans-serif;
    }
    .stats-wrap .stat-num span { font-size: 24px; color: rgba(255,255,255,0.6); }
    .stats-wrap .stat-label {
        font-size: 15px; color: rgba(255,255,255,0.7);
        margin-top: 10px; line-height: 1.5;
    }

    /* 时间轴 */
    .timeline-wrap { position: relative; padding: 10px 0 10px 40px; }
    .timeline-wrap::before {
        content: ''; position: absolute; left: 14px; top: 0;
        width: 3px; height: 100%; background: #e0e0e0; border-radius: 2px;
    }
    .timeline-wrap .tl-item { position: relative; margin-bottom: 30px; padding-left: 30px; }
    .timeline-wrap .tl-item::before {
        content: ''; position: absolute; left: -32px; top: 22px;
        width: 14px; height: 14px; background: var(--primary);
        border: 3px solid #fff; border-radius: 50%;
        box-shadow: 0 0 0 3px var(--primary); z-index: 2;
    }
    .timeline-wrap .tl-card {
        background: #fff; padding: 20px 25px; border-radius: 8px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        border-left: 3px solid var(--primary);
    }
    .timeline-wrap .tl-year { font-size: 13px; color: var(--primary); font-weight: 700; margin-bottom: 4px; }
    .timeline-wrap .tl-card h4 { font-size: 17px; color: var(--text-dark); margin: 0 0 6px; }
    .timeline-wrap .tl-card p { font-size: 14px; color: var(--text-gray); margin: 0; line-height: 1.6; }

    /* 卡片网格（共用于 culture / feature / honor） */
    .card-grid { display: grid; gap: 25px; }
    .card-grid.col-3 { grid-template-columns: repeat(3, 1fr); }
    .card-grid.col-4 { grid-template-columns: repeat(4, 1fr); }
    .card-item {
        background: #fff; border-radius: 10px; overflow: hidden;
        transition: all 0.3s; text-align: center;
    }
    .card-item:hover { transform: translateY(-4px); box-shadow: 0 8px 25px rgba(0,0,0,0.08); }
    .card-body { padding: 30px 20px; }
    .card-body .card-icon { font-size: 46px; display: block; margin-bottom: 12px; }
    .card-body .card-title { font-size: 18px; color: var(--text-dark); font-weight: bold; margin: 0 0 8px; }
    .card-body .card-desc { font-size: 14px; color: var(--text-gray); line-height: 1.7; margin: 0; }

    /* 荣誉资质专用 — 上方图片 */
    .honor-card .card-img {
        width: 100%; height: 230px; overflow: hidden; display: flex;
        align-items: center; justify-content: center; background: #fafafa;
    }
    .honor-card .card-img img { max-width: 90%; max-height: 90%; object-fit: contain; }

    /* 团队专用 — 圆形头像 */
    .team-card { text-align: center; padding: 40px 20px; }
    .team-card .team-avatar {
        width: 120px; height: 120px; border-radius: 50%; overflow: hidden;
        margin: 0 auto 15px; background: #f0f0f0;
    }
    .team-card .team-avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
    .team-card .team-name { font-size: 18px; color: var(--text-dark); font-weight: bold; margin: 0 0 4px; }
    .team-card .team-role { font-size: 14px; color: var(--primary); font-weight: 600; margin: 0 0 10px; }
    .team-card .team-desc { font-size: 14px; color: var(--text-gray); line-height: 1.7; margin: 0; }

    @media screen and (max-width: 768px) {
        .page-subnav .subnav-inner { flex-direction: column; align-items: stretch; }
        .page-subnav .subnav-list { overflow-x: auto; gap: 0; }
        .page-subnav .subnav-list a { white-space: nowrap; padding: 12px 15px; font-size: 14px; }
        .page-subnav .breadcrumb { display: none; }
        .about-content .content-body { flex-direction: column; }
        .about-content .content-image { flex: 0 0 100%; }
        .card-grid.col-3, .card-grid.col-4 { grid-template-columns: 1fr; }
        .timeline-wrap { padding-left: 20px; }
    }