.xn_warp {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: #2c3e50;
            background: #ffffff;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
            box-sizing: border-box;
        }
        .xn_warp *,
        .xn_warp *::before,
        .xn_warp *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        /* ---------- 面包屑 ---------- */
        .xn_crumb_nav {
            padding: 18px 0 12px 0;
            font-size: 14px;
            color: #7f8c8d;
            letter-spacing: 0.3px;
        }
        .xn_crumb_nav ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
        }
        .xn_crumb_nav li {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .xn_crumb_nav a {
            color: #5d6d7e;
            text-decoration: none;
            transition: color 0.2s;
        }
        .xn_crumb_nav a:hover {
            color: #1a6fb5;
            text-decoration: underline;
        }
        .xn_crumb_sep {
            color: #bdc3c7;
            font-size: 12px;
            user-select: none;
            margin: 0 2px;
        }
        .xn_crumb_cur {
            color: #1a5276;
            font-weight: 600;
            pointer-events: none;
        }

        /* ---------- Banner缩略图区域 ---------- */
        .xn_banner_stage {
            width: 100%;
            aspect-ratio: 2.8 / 1;
            min-height: 200px;
            max-height: 420px;
            background: #f0f4f8;
            border-radius: 6px;
            overflow: hidden;
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            border: 1px solid #e5ecf3;
        }
        .xn_banner_stage img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            display: block;
            background: #f0f4f8;
        }
        /* 图片占位提示（图片未加载时显示，替换图片后自动消失） */
        .xn_banner_placeholder {
            position: absolute;
            pointer-events: none;
            color: #b0bec5;
            font-size: 15px;
            letter-spacing: 0.5px;
            z-index: 0;
            text-align: center;
        }
        .xn_banner_stage img[src=""]~.xn_banner_placeholder,
        .xn_banner_stage img:not([src])~.xn_banner_placeholder {
            display: block;
        }
        .xn_banner_stage img[src]:not([src=""])~.xn_banner_placeholder {
            display: none;
        }

        /* ---------- 主标题区 ---------- */
        .xn_hero_block {
            padding: 8px 0 20px 0;
            border-bottom: 2px solid #eef3f7;
            margin-bottom: 30px;
        }
        .xn_hero_block h1 {
            font-size: 30px;
            font-weight: 700;
            color: #1a3c54;
            letter-spacing: 0.6px;
            line-height: 1.4;
            margin-bottom: 10px;
        }
        .xn_hero_tagline {
            font-size: 16px;
            color: #5d6d7e;
            letter-spacing: 0.3px;
            max-width: 780px;
        }

        /* ---------- 通用区块 ---------- */
        .xn_sect {
            margin-bottom: 36px;
        }
        .xn_sect_h2 {
            font-size: 22px;
            font-weight: 700;
            color: #1a3c54;
            margin-bottom: 16px;
            padding-left: 14px;
            border-left: 3px solid #1a6fb5;
            letter-spacing: 0.4px;
            line-height: 1.35;
        }
        .xn_sect_h3 {
            font-size: 17px;
            font-weight: 600;
            color: #2c3e50;
            margin: 14px 0 8px 0;
            letter-spacing: 0.3px;
        }
        .xn_para {
            font-size: 15px;
            color: #4a5568;
            line-height: 1.8;
            margin-bottom: 12px;
            letter-spacing: 0.2px;
        }
        .xn_para strong {
            color: #1a3c54;
            font-weight: 600;
        }

        /* ---------- 痛点卡片网格 ---------- */
        .xn_pain_grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
            gap: 18px;
            margin-top: 10px;
        }
        .xn_pain_card {
            background: #f9fbfd;
            border: 1px solid #e5ecf3;
            border-radius: 6px;
            padding: 20px 18px;
            transition: border-color 0.2s;
        }
        .xn_pain_card:hover {
            border-color: #b0c4d6;
        }
        .xn_pain_card .xn_pain_icon {
            font-size: 26px;
            margin-bottom: 8px;
            display: block;
        }
        .xn_pain_card h4 {
            font-size: 15px;
            font-weight: 600;
            color: #1a3c54;
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        .xn_pain_card p {
            font-size: 14px;
            color: #5d6d7e;
            line-height: 1.7;
            letter-spacing: 0.2px;
        }

        /* ---------- 适用对象标签列表 ---------- */
        .xn_target_list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            list-style: none;
            margin-top: 6px;
        }
        .xn_target_list li {
            background: #eef6fb;
            color: #1a5276;
            font-size: 14px;
            padding: 8px 16px;
            border-radius: 20px;
            letter-spacing: 0.3px;
            font-weight: 500;
            border: 1px solid #d6e8f5;
        }

        /* ---------- 能力列表 ---------- */
        .xn_cap_list {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 14px;
            margin-top: 8px;
        }
        .xn_cap_list li {
            background: #ffffff;
            border: 1px solid #e5ecf3;
            border-radius: 6px;
            padding: 16px 18px;
            font-size: 14px;
            color: #2c3e50;
            letter-spacing: 0.3px;
            line-height: 1.6;
            position: relative;
            padding-left: 36px;
        }
        .xn_cap_list li::before {
            content: "◆";
            position: absolute;
            left: 14px;
            top: 16px;
            color: #1a6fb5;
            font-size: 10px;
            line-height: 1.6;
        }

        /* ---------- 技术参数透明表 ---------- */
        .xn_tech_table_wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            margin-top: 10px;
            border: 1px solid #e5ecf3;
            border-radius: 6px;
        }
        .xn_tech_table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            letter-spacing: 0.3px;
            min-width: 680px;
        }
        .xn_tech_table thead th {
            background: #f4f7fa;
            color: #1a3c54;
            font-weight: 600;
            padding: 12px 14px;
            text-align: left;
            border-bottom: 2px solid #dce5ed;
            white-space: nowrap;
        }
        .xn_tech_table tbody td {
            padding: 11px 14px;
            border-bottom: 1px solid #eef3f7;
            color: #4a5568;
            vertical-align: top;
        }
        .xn_tech_table tbody tr:hover {
            background: #fafcfd;
        }
        .xn_tech_table .xn_tbl_note {
            font-size: 12px;
            color: #8899a6;
            display: block;
            margin-top: 2px;
        }

        /* ---------- 资质证书网格 ---------- */
        .xn_cert_grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 14px;
            margin-top: 8px;
        }
        .xn_cert_item {
            background: #f9fbfd;
            border: 1px solid #e5ecf3;
            border-radius: 6px;
            padding: 16px 16px;
            font-size: 14px;
            color: #2c3e50;
            letter-spacing: 0.3px;
            line-height: 1.5;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .xn_cert_badge {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            background: #1a6fb5;
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            letter-spacing: 0;
            line-height: 1;
        }

        /* ---------- 服务流程步骤 ---------- */
        .xn_flow_steps {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 10px;
            counter-reset: xn_step;
        }
        .xn_flow_step {
            flex: 1 1 160px;
            min-width: 140px;
            background: #ffffff;
            border: 1px solid #e5ecf3;
            border-radius: 6px;
            padding: 18px 14px 14px 14px;
            text-align: center;
            position: relative;
            counter-increment: xn_step;
        }
        .xn_flow_step::before {
            content: counter(xn_step);
            display: block;
            width: 32px;
            height: 32px;
            background: #1a6fb5;
            color: #fff;
            border-radius: 50%;
            margin: 0 auto 10px auto;
            font-weight: 700;
            font-size: 15px;
            line-height: 32px;
            text-align: center;
        }
        .xn_flow_step h4 {
            font-size: 14px;
            font-weight: 600;
            color: #1a3c54;
            margin-bottom: 4px;
            letter-spacing: 0.3px;
        }
        .xn_flow_step p {
            font-size: 13px;
            color: #6b7d8e;
            line-height: 1.6;
            letter-spacing: 0.2px;
        }

        /* ---------- 报价说明区块 ---------- */
        .xn_quote_block {
            background: #fafcfd;
            border: 1px solid #e5ecf3;
            border-radius: 8px;
            padding: 22px 20px;
            margin-top: 10px;
        }
        .xn_quote_block .xn_para {
            margin-bottom: 8px;
        }
        .xn_quote_factors {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            list-style: none;
            margin-top: 10px;
        }
        .xn_quote_factors li {
            background: #ffffff;
            border: 1px dashed #c5d3e0;
            border-radius: 4px;
            padding: 8px 14px;
            font-size: 13px;
            color: #4a5568;
            letter-spacing: 0.3px;
        }

        /* ---------- 标准引用区块 ---------- */
        .xn_std_list {
            list-style: disc;
            padding-left: 22px;
            color: #4a5568;
            font-size: 14px;
            letter-spacing: 0.3px;
            line-height: 1.9;
        }
        .xn_std_list li {
            margin-bottom: 4px;
        }

        /* ---------- CTA引导条 ---------- */
        .xn_cta_bar {
            background: #1a3c54;
            color: #ffffff;
            border-radius: 8px;
            padding: 24px 28px;
            margin-top: 30px;
            margin-bottom: 10px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            letter-spacing: 0.3px;
        }
        .xn_cta_bar .xn_cta_text {
            font-size: 16px;
            font-weight: 500;
            line-height: 1.6;
        }
        .xn_cta_bar .xn_cta_text strong {
            color: #ffd966;
            font-weight: 700;
        }
        .xn_cta_btn {
            display: inline-block;
            background: #ffffff;
            color: #1a3c54;
            font-weight: 700;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: 30px;
            text-decoration: none;
            letter-spacing: 0.4px;
            transition: background 0.2s, transform 0.15s;
            white-space: nowrap;
            border: 2px solid transparent;
        }
        .xn_cta_btn:hover {
            background: #e8f0f6;
            transform: translateY(-1px);
        }

        /* ---------- 响应式微调 ---------- */
        @media (max-width: 768px) {
            .xn_warp {
                padding: 0 14px;
            }
            .xn_hero_block h1 {
                font-size: 23px;
            }
            .xn_banner_stage {
                aspect-ratio: 2.2 / 1;
                min-height: 150px;
                max-height: 280px;
            }
            .xn_sect_h2 {
                font-size: 18px;
            }
            .xn_pain_grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .xn_cap_list {
                grid-template-columns: 1fr;
            }
            .xn_cert_grid {
                grid-template-columns: 1fr;
            }
            .xn_flow_steps {
                flex-direction: column;
            }
            .xn_cta_bar {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .xn_pain_grid {
                grid-template-columns: 1fr;
            }
            .xn_target_list li {
                font-size: 13px;
                padding: 6px 12px;
            }
            .xn_hero_block h1 {
                font-size: 20px;
            }
            .xn_banner_stage {
                aspect-ratio: 1.8 / 1;
                min-height: 130px;
                max-height: 220px;
            }
        }