.xn-solution-wrap {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: #2c2c2c;
            line-height: 1.72;
            letter-spacing: 0.028em;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 16px;
            box-sizing: border-box;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        .xn-solution-wrap *,
        .xn-solution-wrap *::before,
        .xn-solution-wrap *::after {
            box-sizing: border-box;
        }

        /* ---- 面包屑 ---- */
        .xn-breadcrumb-nav {
            padding: 14px 0 10px;
            font-size: 13px;
            color: #6b6b6b;
            border-bottom: 1px solid #e8e8e8;
            margin-bottom: 0;
        }
        .xn-breadcrumb-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
        }
        .xn-breadcrumb-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .xn-breadcrumb-item a {
            color: #4a4a4a;
            text-decoration: none;
            transition: color 0.18s;
        }
        .xn-breadcrumb-item a:hover {
            color: #1a6fb5;
            text-decoration: underline;
        }
        .xn-breadcrumb-sep {
            color: #b0b0b0;
            user-select: none;
            font-size: 11px;
        }
        .xn-breadcrumb-current {
            color: #1a1a1a;
            font-weight: 600;
            pointer-events: none;
        }

        /* ---- Banner区域（栏目缩略图） ---- */
        .xn-banner-zone {
            margin: 18px 0 28px;
            border-radius: 6px;
            overflow: hidden;
            background: #f0f3f5;
            position: relative;
            aspect-ratio: 2.0 / 1;
            min-height: 200px;
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.07);
        }
        .xn-banner-zone img {
    display: block;
    width: 100%;
    height: 100%;
        }
        .xn-banner-placeholder {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #9aa3ab;
            font-size: 15px;
            letter-spacing: 0.06em;
            pointer-events: none;
            z-index: 0;
        }
        .xn-banner-zone img {
            position: relative;
            z-index: 1;
        }

        /* ---- 核心标题区 ---- */
        .xn-page-title-block {
            margin-bottom: 22px;
        }
        .xn-page-h1 {
            font-size: 28px;
            font-weight: 700;
            color: #1a1a1a;
            margin: 0 0 8px;
            line-height: 1.35;
            letter-spacing: 0.04em;
        }
        .xn-page-subtitle {
            font-size: 15px;
            color: #5e5e5e;
            margin: 0;
            font-weight: 400;
        }

        /* ---- 通用section ---- */
        .xn-section-block {
            margin: 36px 0;
        }
        .xn-section-heading {
            font-size: 21px;
            font-weight: 700;
            color: #1d1d1d;
            margin: 0 0 14px;
            padding-left: 14px;
            border-left: 4px solid #1a6fb5;
            line-height: 1.3;
            letter-spacing: 0.035em;
        }
        .xn-section-subheading {
            font-size: 17px;
            font-weight: 600;
            color: #2a2a2a;
            margin: 18px 0 10px;
            letter-spacing: 0.03em;
        }
        .xn-para {
            margin: 0 0 12px;
            font-size: 15px;
            color: #3d3d3d;
            line-height: 1.78;
        }
        .xn-para-sm {
            font-size: 13.5px;
            color: #5a5a5a;
            line-height: 1.7;
            margin: 0 0 8px;
        }

        /* ---- 痛点卡片网格 ---- */
        .xn-painpoint-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
            gap: 16px;
            margin-top: 10px;
        }
        .xn-painpoint-card {
            background: #f9fafb;
            border: 1px solid #e4e7ea;
            border-radius: 6px;
            padding: 18px 16px;
            transition: box-shadow 0.2s, border-color 0.2s;
        }
        .xn-painpoint-card:hover {
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.07);
            border-color: #c8cdd3;
        }
        .xn-painpoint-icon {
            font-size: 26px;
            margin-bottom: 8px;
            display: block;
        }
        .xn-painpoint-title {
            font-weight: 700;
            font-size: 15px;
            color: #1d1d1d;
            margin: 0 0 6px;
        }
        .xn-painpoint-desc {
            font-size: 13.5px;
            color: #555;
            margin: 0;
            line-height: 1.65;
        }

        /* ---- 适用对象标签 ---- */
        .xn-tag-cluster {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 8px;
        }
        .xn-tag-item {
            display: inline-block;
            padding: 7px 16px;
            background: #eef4f8;
            color: #1d4f6e;
            border-radius: 20px;
            font-size: 13.5px;
            font-weight: 500;
            letter-spacing: 0.025em;
            border: 1px solid #d6e2ec;
        }

        /* ---- 技术参数表格 ---- */
        .xn-param-table-wrap {
            overflow-x: auto;
            margin-top: 10px;
            -webkit-overflow-scrolling: touch;
        }
        .xn-param-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 680px;
        }
        .xn-param-table thead th {
            background: #1d3b4f;
            color: #fff;
            padding: 11px 12px;
            text-align: left;
            font-weight: 600;
            font-size: 13.5px;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }
        .xn-param-table tbody td {
            padding: 10px 12px;
            border-bottom: 1px solid #e4e7ea;
            vertical-align: top;
            line-height: 1.6;
        }
        .xn-param-table tbody tr:nth-child(even) td {
            background: #fafbfc;
        }
        .xn-param-table tbody tr:hover td {
            background: #f2f6f9;
        }
        .xn-param-highlight {
            background: #fff9e8 !important;
            font-weight: 600;
            color: #8b5e00;
        }

        /* ---- 优势列表 ---- */
        .xn-advantage-list {
            list-style: none;
            margin: 8px 0 0;
            padding: 0;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 13px;
        }
        .xn-advantage-list li {
            padding: 12px 14px 12px 32px;
            position: relative;
            font-size: 14.5px;
            color: #3a3a3a;
            line-height: 1.65;
            background: #fafcfd;
            border-radius: 4px;
            border: 1px solid #eaedef;
        }
        .xn-advantage-list li::before {
            content: "▸";
            position: absolute;
            left: 12px;
            top: 12px;
            color: #1a6fb5;
            font-weight: 700;
            font-size: 14px;
        }

        /* ---- 资质grid ---- */
        .xn-cert-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 12px;
            margin-top: 8px;
        }
        .xn-cert-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 12px 14px;
            background: #fdfdfd;
            border: 1px solid #e6e9ec;
            border-radius: 5px;
            font-size: 13.5px;
            color: #3a3a3a;
            line-height: 1.55;
        }
        .xn-cert-mark {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            background: #1a6fb5;
            color: #fff;
            border-radius: 3px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            margin-top: 1px;
        }

        /* ---- 报价构成 ---- */
        .xn-quote-structure {
            background: #f8f9fa;
            border-radius: 6px;
            padding: 20px 22px;
            margin-top: 10px;
            border: 1px solid #e5e8eb;
        }
        .xn-quote-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 10px;
            font-size: 14px;
            color: #3d3d3d;
            line-height: 1.65;
        }
        .xn-quote-label {
            font-weight: 600;
            min-width: 140px;
            color: #1d1d1d;
            flex-shrink: 0;
        }
        .xn-quote-detail {
            flex: 1;
            min-width: 200px;
        }

        /* ---- 服务流程 ---- */
        .xn-flow-steps {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 10px;
            counter-reset: xn-flow-counter;
        }
        .xn-flow-step {
            flex: 1;
            min-width: 150px;
            background: #fff;
            border: 1px solid #e4e7ea;
            border-radius: 6px;
            padding: 16px 14px;
            text-align: center;
            position: relative;
            counter-increment: xn-flow-counter;
        }
        .xn-flow-step::before {
            content: counter(xn-flow-counter);
            display: block;
            width: 30px;
            height: 30px;
            line-height: 30px;
            background: #1a6fb5;
            color: #fff;
            border-radius: 50%;
            margin: 0 auto 10px;
            font-weight: 700;
            font-size: 14px;
        }
        .xn-flow-step-title {
            font-weight: 700;
            font-size: 14.5px;
            color: #1d1d1d;
            margin: 0 0 4px;
        }
        .xn-flow-step-desc {
            font-size: 12.5px;
            color: #666;
            margin: 0;
            line-height: 1.5;
        }

        /* ---- FAQ ---- */
        .xn-faq-item {
            border-bottom: 1px solid #e8e8e8;
            padding: 14px 0;
        }
        .xn-faq-q {
            font-weight: 700;
            font-size: 15px;
            color: #1d1d1d;
            margin: 0 0 6px;
            cursor: default;
        }
        .xn-faq-a {
            font-size: 14px;
            color: #4a4a4a;
            margin: 0;
            line-height: 1.7;
        }

        /* ---- CTA区域 ---- */
        .xn-cta-zone {
            background: #1d3b4f;
            color: #e8edf1;
            border-radius: 8px;
            padding: 28px 24px;
            margin: 36px 0 20px;
            text-align: center;
        }
        .xn-cta-title {
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 8px;
            color: #fff;
        }
        .xn-cta-text {
            font-size: 14.5px;
            margin: 0 0 16px;
            color: #c5d2db;
            line-height: 1.6;
        }
        .xn-cta-inline {
            display: inline-flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .xn-cta-btn {
            display: inline-block;
            padding: 10px 28px;
            background: #fff;
            color: #1d3b4f;
            font-weight: 600;
            border-radius: 4px;
            text-decoration: none;
            font-size: 14.5px;
            letter-spacing: 0.03em;
            transition: background 0.2s, box-shadow 0.2s;
            border: none;
            cursor: pointer;
        }
        .xn-cta-btn:hover {
            background: #e6f0f5;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
        }
        .xn-cta-btn-outline {
            background: transparent;
            color: #fff;
            border: 1.5px solid #7a9db3;
        }
        .xn-cta-btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: #b0c8d6;
        }

        /* ---- 图片通用容器（可替换图） ---- */
        .xn-figure-box {
            margin: 16px 0;
            border-radius: 5px;
            overflow: hidden;
            background: #f4f5f6;
            aspect-ratio: 16 / 9;
            position: relative;
        }
        .xn-figure-box img {
            display: block;
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center;
            position: relative;
            z-index: 1;
        }
        .xn-figure-caption {
            font-size: 12.5px;
            color: #888;
            text-align: center;
            margin-top: 6px;
        }

        /* ---- 响应式 ---- */
        @media (max-width: 768px) {
            .xn-page-h1 {
                font-size: 22px;
            }
            .xn-section-heading {
                font-size: 18px;
                padding-left: 10px;
                border-left-width: 3px;
            }
            .xn-banner-zone {
                aspect-ratio: 2 / 1;
                min-height: 150px;
            }
            .xn-painpoint-grid,
            .xn-advantage-list,
            .xn-cert-grid {
                grid-template-columns: 1fr;
            }
            .xn-flow-steps {
                flex-direction: column;
            }
            .xn-flow-step {
                min-width: auto;
            }
            .xn-quote-row {
                flex-direction: column;
                gap: 4px;
            }
            .xn-quote-label {
                min-width: auto;
            }
            .xn-param-table {
                font-size: 12.5px;
                min-width: 520px;
            }
        }
        @media (max-width: 480px) {
            .xn-solution-wrap {
                padding: 0 10px;
            }
            .xn-page-h1 {
                font-size: 19px;
            }
            .xn-banner-zone {
                aspect-ratio: 1.8 / 1;
                min-height: 130px;
            }
            .xn-tag-cluster {
                gap: 6px;
            }
            .xn-tag-item {
                font-size: 12px;
                padding: 5px 11px;
            }
            .xn-cta-zone {
                padding: 20px 14px;
            }
            .xn-cta-title {
                font-size: 17px;
            }
        }

        /* 打印样式 */
        @media print {
            .xn-cta-zone {
                background: #f0f0f0 !important;
                color: #1a1a1a !important;
                border: 1px solid #ccc;
            }
            .xn-cta-btn {
                border: 1px solid #333;
            }
        }