* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: "Microsoft YaHei", Arial, sans-serif;
            background: #fff;
            color: #333;
        }

        .container {
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            margin-bottom: 80px;
            padding: 40px 0;
        }

        .section-title {
            text-align: center;
            font-size: 28px;
            font-weight: bold;
            color: #2c5282;
            margin-bottom: 20px;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 15px;
        }

        .section-title-icon {
            width: 20px;
            height: 20px;
            object-fit: contain;
        }

        /* 政策背景样式 */
        .policy-bg {
            max-width: 1200px;
            padding: 50px 40px;
            margin: 0 auto;
        }

        .policy-content {
            display: flex;
            gap: 50px;
            align-items: flex-start;
        }

        .policy-left {
            flex: 2;
        }

        .policy-text {
            padding: 25px 15px;
            font-size: 16px;
            line-height: 1.8;
            color: #4a5568;
            text-align: justify;
            margin-bottom: 10px;
            background: linear-gradient( 135deg, #EFF5FF 0%, #EBF0FF 100%);
        }

        .policy-docs {
            width: 100%;
        }

        .policy-doc {
            text-align: center;
            font-size: 14px;
            color: #2d3748;
        }

        .policy-doc img {
            width: 100%;
            height: 120px;
            object-fit: contain;
            margin-bottom: 8px;
        }

        .policy-right {
            flex: 1;
            text-align: center;
        }

        .policy-right img {
            max-width: 100%;
            height: auto;
        }

        /* 管理现状样式 */
        .manage-status {
            padding: 50px 40px;
            background: #EDF4FF;
            margin: auto;
            width: 1120px;
        }

        .manage-cards {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            margin-top: 30px;
        }

        .manage-card {
            flex: 1;
            background: linear-gradient(135deg, #4299e1, #2b6cb0);
            text-align: left;
            transition: transform 0.3s ease;
            min-height: 280px;
            position: relative;
            overflow: hidden;
        }

        .manage-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(66, 153, 225, 0.4);
        }

        .manage-card-bg {
            z-index: 1;
        }

        .manage-card-content {
            background: #fff;
            color: #000;
            position: relative;
            z-index: 2;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .manage-icon {
            width: 80px;
            height: 80px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .manage-icon img {
            width: 50px;
            height: 50px;
            object-fit: contain;
        }

        .manage-title {
            font-size: 18px;
            font-weight: bold;
            color: #343434;
            text-align: center;
            margin: 6px;
            line-height: 1.3;
        }

        .manage-desc {
            font-size: 14px;
            color:  #909090;
            padding: 6px;
            line-height: 1.6;
            text-align: justify;
            text-indent: 2em; /* 首行缩进2个字符 */
        }

        /* 系统概述样式 */
        .system-desc {
            background: white;
            padding: 50px 40px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .system-desc-text {
            font-size: 16px;
            line-height: 1.8;
            color: #646464;
            text-align: left;
            margin-bottom: 40px;
        }

        .system-features {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
            margin-bottom: 50px;
        }

        .feature-card {
            background: linear-gradient( 315deg, #E8F0FF 0%, #F3F6FF 100%);
            border-radius: 2px;
            padding: 25px 20px;
            text-align: center;
        }

        .feature-num {
            width: 40px;
            height: 40px;
            background: #4299e1;
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 18px;
            margin: 0 auto 15px;
        }

        .feature-title {
            font-size: 16px;
            font-weight: bold;
            color: #2c5282;
            margin-bottom: 10px;
        }

        .feature-desc {
            text-align: left;
            font-size: 16px;
            color: #909090;
            line-height: 1.5;
        }

        /* 系统功能展示 */
        .system-showcase {
            margin-top: 40px;
        }

        .showcase-item {
            display: flex;
            align-items: center;
            margin-bottom: 30px;
            gap: 30px;
            background: linear-gradient( 315deg, #E8F0FF 0%, #F3F6FF 100%);
            padding: 20px;
            border-radius: 2px;
        }

        .showcase-content {
            flex: 1;
        }

        .showcase-title {
            position: relative;
            font-size: 18px;
            font-weight: bold;
            color: #343434;
            margin-bottom: 30px;
            /* 可选：设置父元素高度以容纳伪元素 */
            /* height: 200px; */
            /* 可选：隐藏溢出的伪元素 */
            /* overflow: hidden; */
        }

        .showcase-title::after {
            position: absolute;
            content: '';
            /* 设置定位：置于父元素左上角，下方层级（不覆盖文字） */
            top: 28px;
            left: 0;
            z-index: 1;
            width: 37px;
            height: 6px;
            background: linear-gradient( 135deg, #0AA9FD 0%, #2E66FD 100%);
            border-radius: 10px 10px 10px 10px;
        }

        .showcase-desc {
            line-height: 1.6;
            font-weight: 400;
            font-size: 16px;
            color: #909090;
        }

        .showcase-image {
            flex: 1;
            text-align: center;
        }

        .showcase-image img {
            max-width: 100%;
            height: auto;
            border-radius: 6px;
        }

        /* 大数据分析样式 */
        .bigdata {
            background: #EDF4FF;
            max-width: 1200px;
            padding: 50px 40px;
            margin: 0 auto;
        }

        .bigdata-text {
            font-size: 16px;
            line-height: 1.8;
            color: #646464;
            text-align: left;
            margin-bottom: 40px;
        }

        .bigdata-showcase {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
            margin-bottom: 20px;
        }

        .bigdata-item {
            text-align: center;
        }

        .bigdata-item img {
            width: 100%;
            object-fit: contain;
            border-radius: 6px;
            margin-bottom: 15px;
        }

        .bigdata-item-title {
            font-size: 18px;
            font-weight: bold;
            color: #2c5282;
            margin-bottom: 10px;
        }

        .bigdata-item-desc {
            font-size: 14px;
            color: #4a5568;
            line-height: 1.5;
        }

        .bigdata-highlight {
            background: linear-gradient( 138deg, #19C5FD 0%, #3C71FE 100%);
            color: white;
            border-radius: 8px;
            padding: 30px;
            display: flex;
            align-items: center;
            gap: 30px;
        }

        .bigdata-highlight-content {
            flex: 2;
        }

        .bigdata-highlight-title {
            position: relative;
            font-size: 20px;
            font-weight: bold;
            margin-bottom: 15px;
        }
        .bigdata-highlight-title::after {
            position: absolute;
            content: '';
            /* 设置定位：置于父元素左上角，下方层级（不覆盖文字） */
            top: 28px;
            left: 0;
            z-index: 1;
            width: 37px;
            height: 6px;
            background: #fff;
            border-radius: 10px 10px 10px 10px;
        }

        .bigdata-highlight-desc {
            font-size: 14px;
            line-height: 1.6;
            opacity: 0.95;
        }

        .bigdata-highlight-image {
            flex: 1;
            text-align: center;
        }

        .bigdata-highlight-image img {
            max-width: 100%;
            height: auto;
            border-radius: 6px;
        }

        /* 响应式设计 */
        @media (max-width: 1024px) {
            .manage-cards {
                flex-wrap: wrap;
            }

            .manage-card {
                min-width: calc(50% - 10px);
            }

            .system-features {
                grid-template-columns: repeat(2, 1fr);
            }

            .policy-bg,
            .manage-status,
            .system-desc,
            .bigdata {
                padding: 40px 30px;
            }

            .section-title {
                font-size: 24px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 15px;
            }

            .section {
                margin-bottom: 60px;
                padding: 30px 0;
            }

            .section-title {
                font-size: 22px;
                margin-bottom: 15px;
            }

            .section-title-icon {
                width: 16px;
                height: 16px;
            }

            .policy-bg,
            .manage-status,
            .system-desc,
            .bigdata {
                padding: 30px 20px;
                width: 100%;
                max-width: 100%;
            }

            .policy-content {
                flex-direction: column;
                gap: 30px;
            }

            .policy-text {
                font-size: 15px;
                padding: 20px 15px;
            }

            .manage-cards {
                flex-direction: column;
                gap: 15px;
            }

            .manage-card {
                min-width: auto;
                min-height: 200px;
            }

            .manage-title {
                font-size: 16px;
            }

            .manage-desc {
                font-size: 13px;
            }

            .system-features {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .feature-card {
                padding: 20px 15px;
            }

            .feature-title {
                font-size: 15px;
            }

            .feature-desc {
                font-size: 14px;
            }

            .system-desc-text {
                font-size: 15px;
                margin-bottom: 30px;
            }

            .showcase-item,
            .showcase-item:nth-child(even) {
                flex-direction: column;
                text-align: center;
                padding: 15px;
                gap: 20px;
            }

            .showcase-title {
                font-size: 16px;
                margin-bottom: 20px;
            }

            .showcase-desc {
                font-size: 14px;
            }

            .bigdata-text {
                font-size: 15px;
                margin-bottom: 30px;
            }

            .bigdata-showcase {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .bigdata-highlight {
                flex-direction: column;
                text-align: center;
                padding: 20px;
                gap: 20px;
            }

            .bigdata-highlight-title {
                font-size: 18px;
                margin-bottom: 10px;
            }

            .bigdata-highlight-desc {
                font-size: 13px;
            }
        }

        @media (max-width: 480px) {
            .section {
                margin-bottom: 40px;
                padding: 20px 0;
            }

            .section-title {
                font-size: 20px;
                margin-bottom: 10px;
                gap: 10px;
            }

            .section-title-icon {
                width: 14px;
                height: 14px;
            }

            .policy-bg,
            .manage-status,
            .system-desc,
            .bigdata {
                padding: 20px 15px;
            }

            .policy-text {
                font-size: 14px;
                padding: 15px 10px;
                line-height: 1.6;
            }

            .policy-text p {
                margin-bottom: 15px;
            }

            .manage-card {
                min-height: 180px;
            }

            .manage-title {
                font-size: 15px;
                margin: 5px;
            }

            .manage-desc {
                font-size: 12px;
                padding: 5px;
            }

            .feature-card {
                padding: 15px 10px;
            }

            .feature-title {
                font-size: 14px;
                margin-bottom: 8px;
            }

            .feature-desc {
                font-size: 13px;
                line-height: 1.4;
            }

            .system-desc-text {
                font-size: 14px;
                line-height: 1.6;
                margin-bottom: 25px;
            }

            .showcase-item {
                padding: 10px;
                gap: 15px;
            }

            .showcase-title {
                font-size: 15px;
                margin-bottom: 15px;
            }

            .showcase-title::after {
                top: 22px;
                width: 30px;
                height: 4px;
            }

            .showcase-desc {
                font-size: 13px;
                line-height: 1.5;
            }

            .bigdata-text {
                font-size: 14px;
                line-height: 1.6;
                margin-bottom: 25px;
            }

            .bigdata-highlight {
                padding: 15px;
                gap: 15px;
            }

            .bigdata-highlight-title {
                font-size: 16px;
                margin-bottom: 8px;
            }

            .bigdata-highlight-title::after {
                top: 22px;
                width: 30px;
                height: 4px;
            }

            .bigdata-highlight-desc {
                font-size: 12px;
                line-height: 1.5;
            }

            .bigdata-item-title {
                font-size: 16px;
                margin-bottom: 8px;
            }

            .bigdata-item-desc {
                font-size: 13px;
            }

            /* 优化图片显示 */
            .policy-right img,
            .showcase-image img,
            .bigdata-highlight-image img {
                max-width: 100%;
                height: auto;
            }

            /* 优化按钮触控体验 */
            a img {
                transition: opacity 0.3s ease;
            }

            a img:hover {
                opacity: 0.8;
            }

            /* 优化文字选择 */
            p {
                -webkit-user-select: text;
                -moz-user-select: text;
                -ms-user-select: text;
                user-select: text;
            }
        }

        /* 超小屏幕适配 */
        @media (max-width: 360px) {
            .section-title {
                font-size: 18px;
                flex-direction: column;
                gap: 8px;
            }

            .section-title-icon {
                width: 12px;
                height: 12px;
            }

            .policy-bg,
            .manage-status,
            .system-desc,
            .bigdata {
                padding: 15px 10px;
            }

            .policy-text {
                font-size: 13px;
                padding: 12px 8px;
            }

            .manage-card {
                min-height: 160px;
            }

            .manage-title {
                font-size: 14px;
            }

            .manage-desc {
                font-size: 11px;
            }

            .feature-card {
                padding: 12px 8px;
            }

            .feature-title {
                font-size: 13px;
            }

            .feature-desc {
                font-size: 12px;
            }

            .showcase-title {
                font-size: 14px;
            }

            .showcase-desc {
                font-size: 12px;
            }

            .bigdata-highlight-title {
                font-size: 15px;
            }

            .bigdata-highlight-desc {
                font-size: 11px;
            }
        }

        /* 横屏手机适配 */
        @media (max-width: 896px) and (orientation: landscape) {
            .section {
                margin-bottom: 50px;
                padding: 25px 0;
            }

            .manage-cards {
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                gap: 15px;
            }

            .manage-card {
                min-height: 150px;
            }

            .system-features {
                grid-template-columns: repeat(2, 1fr);
            }

            .bigdata-showcase {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* 触摸设备优化 */
        @media (hover: none) {
            .manage-card:hover {
                transform: none;
                box-shadow: none;
            }

            .manage-card:active {
                transform: scale(0.98);
            }

            a img:hover {
                opacity: 1;
            }

            a img:active {
                opacity: 0.8;
            }
        }