.xn_cs_scope {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Hiragino Sans GB", sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: #2e3b4e;
            background: #f8f9fb;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            letter-spacing: 0.02em;
            /* 不使用任何CSS变量，避免与:root冲突 */
            box-sizing: border-box;
        }
        .xn_cs_scope *,
        .xn_cs_scope *::before,
        .xn_cs_scope *::after {
            box-sizing: inherit;
            margin: 0;
            padding: 0;
        }
        .xn_cs_scope img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        .xn_cs_scope a {
            text-decoration: none;
            color: inherit;
        }
        .xn_cs_scope ul,
        .xn_cs_scope ol {
            list-style: none;
        }

        /* ---- 面包屑导航 ---- */
        .xn_cs_breadcrumb_nav {
            padding: 16px 0;
            background: transparent;
            font-size: 13px;
            color: #6b7a8d;
            letter-spacing: 0.03em;
            max-width: 1120px;
            margin: 0 auto;
        }
        .xn_cs_breadcrumb_nav .xn_cs_breadcrumb_list {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 4px;
        }
        .xn_cs_breadcrumb_nav .xn_cs_breadcrumb_item {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .xn_cs_breadcrumb_nav .xn_cs_breadcrumb_link {
            color: #4a5b6e;
            transition: color 0.2s;
            font-weight: 400;
        }
        .xn_cs_breadcrumb_nav .xn_cs_breadcrumb_link:hover {
            color: #1a5c8a;
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .xn_cs_breadcrumb_nav .xn_cs_breadcrumb_sep {
            color: #bcc5d0;
            margin: 0 2px;
            user-select: none;
            font-size: 11px;
        }
        .xn_cs_breadcrumb_nav .xn_cs_breadcrumb_current {
            color: #1a3c5e;
            font-weight: 600;
            pointer-events: none;
        }

        /* ---- 主内容区 ---- */
        .xn_cs_main_shell {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 24px 60px;
        }

        /* ---- Banner缩略图区域 ---- */
        .xn_cs_hero_banner_wrap {
            position: relative;
            width: 100%;
            min-height: 180px;
            max-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #e8ecf1;
            border-radius: 6px;
            overflow: hidden;
            margin-bottom: 28px;
            border: 1px solid #dce2e9;
        }
        .xn_cs_hero_banner_wrap .xn_cs_banner_img {
            width: 100%;
            height: auto;
            max-height: 420px;
            object-fit: contain;
            object-position: center;
            display: block;
            /* 确保任何尺寸的缩略图都能百分百完整显示，不被裁剪 */
        }

        /* ---- H1 核心标题 ---- */
        .xn_cs_page_h1 {
            font-size: 28px;
            font-weight: 700;
            color: #0f2439;
            letter-spacing: 0.04em;
            line-height: 1.35;
            margin-bottom: 10px;
            padding-bottom: 14px;
            border-bottom: 3px solid #d0dbe8;
            position: relative;
        }
        .xn_cs_page_h1::after {
            content: '';
            position: absolute;
            bottom: -3px;
            left: 0;
            width: 72px;
            height: 3px;
            background: #1a5c8a;
        }
        .xn_cs_page_subtitle {
            font-size: 15px;
            color: #5f6e82;
            margin-bottom: 32px;
            letter-spacing: 0.025em;
            font-weight: 400;
        }

        /* ---- 双栏信息卡片 ---- */
        .xn_cs_info_grid_2col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-bottom: 36px;
        }
        @media (max-width: 768px) {
            .xn_cs_info_grid_2col {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .xn_cs_page_h1 {
                font-size: 22px;
            }
            .xn_cs_hero_banner_wrap {
                min-height: 140px;
                max-height: 260px;
            }
            .xn_cs_hero_banner_wrap .xn_cs_banner_img {
                max-height: 260px;
            }
            .xn_cs_credential_grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }
        @media (max-width: 480px) {
            .xn_cs_credential_grid {
                grid-template-columns: 1fr;
            }
            .xn_cs_main_shell {
                padding: 0 12px 40px;
            }
        }

        .xn_cs_info_panel {
            background: #ffffff;
            border: 1px solid #e2e7ef;
            border-radius: 6px;
            padding: 22px 20px;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
            transition: box-shadow 0.25s;
        }
        .xn_cs_info_panel:hover {
            box-shadow: 0 3px 14px rgba(0, 0, 0, 0.07);
        }
        .xn_cs_info_panel .xn_cs_panel_icon {
            display: inline-block;
            width: 40px;
            height: 40px;
            background: #eaf1f8;
            border-radius: 4px;
            margin-bottom: 10px;
            text-align: center;
            line-height: 40px;
            font-size: 18px;
            color: #1a5c8a;
            font-weight: 700;
        }
        .xn_cs_info_panel .xn_cs_panel_title {
            font-size: 16px;
            font-weight: 700;
            color: #1a3c5e;
            margin-bottom: 8px;
            letter-spacing: 0.03em;
        }
        .xn_cs_info_panel .xn_cs_panel_desc {
            font-size: 14px;
            color: #4d5c6f;
            line-height: 1.65;
        }
        .xn_cs_info_panel .xn_cs_panel_list {
            margin-top: 8px;
            padding-left: 0;
        }
        .xn_cs_info_panel .xn_cs_panel_list li {
            position: relative;
            padding-left: 16px;
            margin-bottom: 5px;
            font-size: 14px;
            color: #3a495c;
            line-height: 1.6;
        }
        .xn_cs_info_panel .xn_cs_panel_list li::before {
            content: '▸';
            position: absolute;
            left: 0;
            top: 0;
            color: #1a5c8a;
            font-size: 11px;
        }

        /* ---- 区块标题 ---- */
        .xn_cs_section_heading {
            font-size: 22px;
            font-weight: 700;
            color: #0f2439;
            letter-spacing: 0.035em;
            margin: 40px 0 18px;
            padding-left: 14px;
            border-left: 4px solid #1a5c8a;
            line-height: 1.3;
        }
        .xn_cs_section_heading:first-of-type {
            margin-top: 32px;
        }

        /* ---- 痛点卡片网格 ---- */
        .xn_cs_painpoint_grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 18px;
            margin-bottom: 32px;
        }
        .xn_cs_painpoint_card {
            background: #fff;
            border: 1px solid #e6eaf0;
            border-radius: 5px;
            padding: 18px 16px;
            border-left: 3px solid #c0392b;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .xn_cs_painpoint_card:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
        }
        .xn_cs_painpoint_card .xn_cs_pp_label {
            font-size: 12px;
            font-weight: 700;
            color: #c0392b;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 6px;
        }
        .xn_cs_painpoint_card .xn_cs_pp_title {
            font-size: 15px;
            font-weight: 700;
            color: #1a2d42;
            margin-bottom: 5px;
        }
        .xn_cs_painpoint_card .xn_cs_pp_detail {
            font-size: 13px;
            color: #5a687c;
            line-height: 1.55;
        }

        /* ---- 技术参数透明表 ---- */
        .xn_cs_param_table_wrap {
            overflow-x: auto;
            margin-bottom: 28px;
            border: 1px solid #dce2e9;
            border-radius: 5px;
            background: #fff;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
        }
        .xn_cs_param_table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 680px;
        }
        .xn_cs_param_table thead th {
            background: #f0f3f7;
            color: #1a3c5e;
            font-weight: 700;
            padding: 13px 14px;
            text-align: left;
            border-bottom: 2px solid #d0d8e2;
            letter-spacing: 0.03em;
            font-size: 13px;
            white-space: nowrap;
        }
        .xn_cs_param_table tbody td {
            padding: 11px 14px;
            border-bottom: 1px solid #e9ecf1;
            color: #3a495c;
            line-height: 1.5;
        }
        .xn_cs_param_table tbody tr:nth-child(even) {
            background: #fafbfc;
        }
        .xn_cs_param_table tbody tr:hover {
            background: #f4f7fa;
        }
        .xn_cs_param_table .xn_cs_highlight_val {
            font-weight: 700;
            color: #1a5c8a;
        }
        .xn_cs_param_note {
            font-size: 13px;
            color: #7a8899;
            margin-top: 8px;
            line-height: 1.5;
            padding-left: 4px;
            border-left: 3px solid #e0e5ec;
            padding: 6px 10px;
            background: #fdfdfe;
            border-radius: 3px;
        }

        /* ---- 设备配套说明 ---- */
        .xn_cs_equip_block {
            background: #fff;
            border: 1px solid #e2e7ef;
            border-radius: 6px;
            padding: 22px 20px;
            margin-bottom: 28px;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
        }
        .xn_cs_equip_block .xn_cs_equip_title {
            font-size: 17px;
            font-weight: 700;
            color: #1a3c5e;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .xn_cs_equip_block .xn_cs_equip_grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 14px;
        }
        .xn_cs_equip_block .xn_cs_equip_item {
            padding: 10px 12px;
            background: #f8f9fb;
            border-radius: 4px;
            font-size: 13px;
            color: #3a495c;
            line-height: 1.5;
            border: 1px solid #eef1f5;
        }
        .xn_cs_equip_block .xn_cs_equip_item strong {
            color: #1a3c5e;
            font-weight: 700;
        }
        .xn_cs_equip_disclaimer {
            font-size: 12px;
            color: #8896a8;
            margin-top: 12px;
            padding-top: 10px;
            border-top: 1px dashed #dce2e9;
            line-height: 1.5;
        }

        /* ---- 资质墙 ---- */
        .xn_cs_credential_grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 12px;
            margin-bottom: 28px;
        }
        .xn_cs_credential_badge {
            background: #fff;
            border: 1px solid #e2e7ef;
            border-radius: 5px;
            padding: 14px 12px;
            text-align: center;
            font-size: 13px;
            font-weight: 600;
            color: #1a3c5e;
            letter-spacing: 0.025em;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
            transition: border-color 0.2s;
            line-height: 1.4;
        }
        .xn_cs_credential_badge:hover {
            border-color: #1a5c8a;
        }
        .xn_cs_credential_badge .xn_cs_cred_icon {
            display: block;
            font-size: 22px;
            margin-bottom: 6px;
            color: #1a5c8a;
        }

        /* ---- 报价构成 ---- */
        .xn_cs_quote_structure {
            background: #fff;
            border: 1px solid #e2e7ef;
            border-radius: 6px;
            padding: 22px 20px;
            margin-bottom: 28px;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
        }
        .xn_cs_quote_structure .xn_cs_quote_title {
            font-size: 17px;
            font-weight: 700;
            color: #1a3c5e;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .xn_cs_quote_list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px 20px;
        }
        @media (max-width: 600px) {
            .xn_cs_quote_list {
                grid-template-columns: 1fr;
            }
        }
        .xn_cs_quote_list .xn_cs_quote_item {
            font-size: 14px;
            color: #3a495c;
            padding: 6px 0;
            border-bottom: 1px dotted #e9ecf1;
            line-height: 1.5;
        }
        .xn_cs_quote_list .xn_cs_quote_item strong {
            color: #1a3c5e;
        }
        .xn_cs_quote_note {
            font-size: 13px;
            color: #6b7a8d;
            margin-top: 12px;
            padding: 10px 12px;
            background: #fdfcf8;
            border-left: 3px solid #e0c97f;
            border-radius: 3px;
            line-height: 1.55;
        }

        /* ---- 服务流程 ---- */
        .xn_cs_flow_strip {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            margin-bottom: 28px;
            border-radius: 6px;
            overflow: hidden;
            border: 1px solid #dce2e9;
        }
        @media (max-width: 768px) {
            .xn_cs_flow_strip {
                flex-direction: column;
            }
        }
        .xn_cs_flow_step {
            flex: 1 1 0;
            min-width: 100px;
            background: #fff;
            padding: 18px 14px;
            text-align: center;
            border-right: 1px solid #eef1f5;
            position: relative;
            transition: background 0.2s;
        }
        .xn_cs_flow_step:last-child {
            border-right: none;
        }
        .xn_cs_flow_step:hover {
            background: #f8fafc;
        }
        .xn_cs_flow_step .xn_cs_flow_num {
            display: inline-block;
            width: 32px;
            height: 32px;
            line-height: 32px;
            border-radius: 50%;
            background: #1a5c8a;
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            margin-bottom: 8px;
        }
        .xn_cs_flow_step .xn_cs_flow_label {
            font-size: 13px;
            font-weight: 700;
            color: #1a3c5e;
            letter-spacing: 0.03em;
        }
        .xn_cs_flow_step .xn_cs_flow_desc {
            font-size: 11px;
            color: #6b7a8d;
            margin-top: 3px;
            line-height: 1.4;
        }

        /* ---- 信任信号区 ---- */
        .xn_cs_trust_block {
            background: #fafbfc;
            border: 1px solid #e2e7ef;
            border-radius: 6px;
            padding: 20px 18px;
            margin-bottom: 28px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: flex-start;
        }
        .xn_cs_trust_block .xn_cs_trust_item {
            flex: 1 1 160px;
            min-width: 140px;
            font-size: 13px;
            color: #3a495c;
            line-height: 1.5;
            padding: 8px 10px;
            background: #fff;
            border-radius: 4px;
            text-align: center;
            border: 1px solid #eef1f5;
        }
        .xn_cs_trust_block .xn_cs_trust_item strong {
            display: block;
            font-size: 15px;
            color: #1a5c8a;
            margin-bottom: 3px;
        }

        /* ---- CTA区域 ---- */
        .xn_cs_cta_zone {
            background: #fff;
            border: 2px solid #1a5c8a;
            border-radius: 6px;
            padding: 28px 22px;
            text-align: center;
            margin-bottom: 20px;
            box-shadow: 0 2px 10px rgba(26, 92, 138, 0.08);
        }
        .xn_cs_cta_zone .xn_cs_cta_title {
            font-size: 20px;
            font-weight: 700;
            color: #0f2439;
            margin-bottom: 8px;
            letter-spacing: 0.03em;
        }
        .xn_cs_cta_zone .xn_cs_cta_desc {
            font-size: 14px;
            color: #5a687c;
            margin-bottom: 16px;
            line-height: 1.6;
        }
        .xn_cs_cta_zone .xn_cs_cta_phone {
            display: inline-block;
            font-size: 24px;
            font-weight: 700;
            color: #1a5c8a;
            letter-spacing: 0.04em;
            padding: 8px 20px;
            background: #f4f8fb;
            border-radius: 4px;
            border: 1px solid #d0dce8;
            transition: background 0.25s;
        }
        .xn_cs_cta_zone .xn_cs_cta_phone:hover {
            background: #e8f0f6;
        }

        /* ---- FAQ折叠区 ---- */
        .xn_cs_faq_block {
            margin-bottom: 28px;
        }
        .xn_cs_faq_item {
            background: #fff;
            border: 1px solid #e2e7ef;
            border-radius: 5px;
            margin-bottom: 8px;
            overflow: hidden;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
        }
        .xn_cs_faq_q {
            font-weight: 700;
            font-size: 14px;
            color: #1a3c5e;
            padding: 14px 16px;
            cursor: pointer;
            background: #fafbfc;
            letter-spacing: 0.025em;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: background 0.2s;
            user-select: none;
        }
        .xn_cs_faq_q:hover {
            background: #f0f3f7;
        }
        .xn_cs_faq_q .xn_cs_faq_arrow {
            font-size: 11px;
            color: #1a5c8a;
            transition: transform 0.2s;
            flex-shrink: 0;
        }
        .xn_cs_faq_a {
            font-size: 13px;
            color: #4d5c6f;
            padding: 0 16px 14px 16px;
            line-height: 1.6;
            display: none;
        }
        .xn_cs_faq_item.xn_cs_faq_open .xn_cs_faq_a {
            display: block;
        }
        .xn_cs_faq_item.xn_cs_faq_open .xn_cs_faq_arrow {
            transform: rotate(90deg);
        }

        /* ---- 辅助文字 ---- */
        .xn_cs_text_muted {
            color: #7a8899;
            font-size: 12px;
            line-height: 1.5;
        }
        .xn_cs_text_strong {
            font-weight: 700;
            color: #1a3c5e;
        }
        .xn_cs_divider_light {
            border: none;
            border-top: 1px solid #e2e7ef;
            margin: 24px 0;
        }
        .xn_cs_tag_inline {
            display: inline-block;
            background: #eaf1f8;
            color: #1a5c8a;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 3px;
            letter-spacing: 0.03em;
            margin-right: 4px;
        }