.page-banner {
        position: relative;
        overflow: hidden;
        background: linear-gradient(180deg, #0B1E4D 0%, #123A8F 60%, #1D5AC8 100%);
        padding: 132px 0 72px;
    }
    .page-banner::before {
        content: "";
        position: absolute;
        right: -120px;
        top: -140px;
        width: 380px;
        height: 380px;
        border-radius: 50%;
        background: rgba(255, 255, 255, .06);
    }
    .page-banner::after {
        content: "";
        position: absolute;
        right: 140px;
        bottom: -190px;
        width: 300px;
        height: 300px;
        border-radius: 50%;
        background: rgba(255, 255, 255, .04);
    }
    .banner-inner {
        position: relative;
        z-index: 1;
        width: 1200px;
        max-width: 100%;
        margin: 0 auto;
        padding: 0 24px;
        display: flex;
        flex-direction: column;
        gap: 14px;
        color: #fff;
    }
    .breadcrumb { font-size: 13px; color: #A9B9DA; }
    .breadcrumb a { color: #A9B9DA; text-decoration: none; }
    .breadcrumb a:hover { color: #fff; }
    .banner-title { margin: 0; font-size: 40px; font-weight: 700; letter-spacing: 1px; }
    .banner-sub { margin: 0; font-size: 15px; color: #B9C7E8; }
    .banner-en { font-size: 12px; letter-spacing: 4px; color: rgba(255,255,255,.45); text-transform: uppercase; }
    @media (max-width: 900px) {
        .page-banner { padding: 108px 0 52px; }
        .banner-title { font-size: 28px; }
    }

    /* ===== 分类筛选（新闻栏目页）===== */
    .news-tabs {
        width: 1200px;
        max-width: 100%;
        margin: 0 auto;
        padding: 34px 24px 30px;
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 12px;
    }
    .news-tab {
        display: inline-flex;
        align-items: center;
        padding: 9px 26px;
        border-radius: 999px;
        border: 1px solid #e2e8f0;
        background: #fff;
        color: #64748b;
        font-size: .92rem;
        font-weight: 500;
        line-height: 1;
        text-decoration: none;
        white-space: nowrap;
        box-shadow: 0 1px 2px rgba(15, 23, 42, .03);
        transition: color .25s ease, background .25s ease, border-color .25s ease, box-shadow .25s ease, transform .25s ease;
    }
    .news-tab:hover {
        color: #2563eb;
        border-color: #bfdbfe;
        background: #f4f8ff;
        transform: translateY(-1px);
    }
    .news-tab.active,
    .news-tab.active:hover {
        color: #fff;
        border-color: transparent;
        background: linear-gradient(135deg, #2563eb, #0ea5e9);
        box-shadow: 0 8px 20px rgba(37, 99, 235, .28);
        font-weight: 600;
    }
    @media (max-width: 640px) {
        .news-tabs { padding: 26px 16px 22px; gap: 10px; }
        .news-tab { padding: 8px 18px; font-size: .86rem; }
    }

    /* ===== 产品服务下拉菜单 ===== */
    .nav-dd { position: relative; }
    .nav-dd > a .dd-arrow { font-size: 10px; margin-left: 4px; transition: transform .25s; display: inline-block; }
    .nav-dd:hover > a .dd-arrow { transform: rotate(180deg); }
    .nav-dd::after { content: ''; position: absolute; left: 0; right: 0; top: 100%; height: 18px; }
    .dd-menu {
        position: absolute; top: calc(100% + 16px); left: 50%;
        transform: translateX(-50%) translateY(8px);
        min-width: 250px; background: #fff; border-radius: 14px;
        box-shadow: 0 18px 50px rgba(15, 23, 42, .14);
        border: 1px solid #eef2f6; padding: 10px; margin: 0;
        opacity: 0; visibility: hidden; transition: all .25s; list-style: none; z-index: 1100;
    }
    .nav-dd:hover .dd-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
    .dd-menu li { width: 100%; }
    .dd-menu li a { display: flex; align-items: center; gap: 12px; padding: 11px 14px; border-radius: 10px; }
    .dd-menu li a::after { display: none; }
    .dd-menu li a:hover { background: #f1f5ff; }
    .dd-menu li a i.fa-database, .dd-menu li a i.fa-robot, .dd-menu li a i.fa-headset, .dd-menu li a i.fa-users, .dd-menu li a i.fa-user-shield {
        width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
        background: #e8effd; color: #2563eb; border-radius: 9px; font-size: 14px; flex-shrink: 0;
    }
    .dd-menu li a b { display: block; font-size: .9rem; color: #1e293b; font-weight: 600; }
    .dd-menu li a span { display: block; font-size: .74rem; color: #94a3b8; margin-top: 2px; }
    @media (max-width: 768px) {
        .nav-dd::after { display: none; }
        .dd-menu {
            position: static; opacity: 1; visibility: visible; transform: none;
            box-shadow: none; border: none; background: #f8fafc;
            min-width: 0; width: 100%; padding: 6px 0 6px 10px; margin-top: 6px;
        }
    }