.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; }
    }


    .detail-body img { max-width:100%; height:auto; border-radius:10px; }
    .detail-body p { margin: 0 0 16px; }
    .detail-body h2, .detail-body h3 { margin: 28px 0 14px; color:#0f172a; }

        /* ===== 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;
            }
        }

        /* ===== 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;
            }
        }