/* =========================================
           全局 & 基础变量 (加 adv- 前缀避免冲突)
           ========================================= */
           :root {
            --adv-primary-blue: #001880;
            --adv-primary-cyan: #0AFFAB;
            --adv-bg-gray: #F1F1F1;
            --adv-text-dark: #1a1a1a;
            --adv-text-light: #ffffff;
            --adv-text-blue: #001880;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: "Microsoft YaHei", "Microsoft YaHei UI", sans-serif;
        }

        body {
            background-color: #ffffff;
            /* 保留底层大背景图的纹理 */
            background-image: url('../static/picture/1xnyBoVYfcOjeDXTIPLTNBEDR3s.png');
            background-size: 100% auto;
            background-repeat: repeat-y;
            background-position: top center;
            color: var(--adv-text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* 核心中心容器：1440px 居中 */
        .adv-container {
            width: 100%;
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 通用区块标题与描述 */
        .adv-section {
            padding: 80px 0;
        }

        .adv-section-title {
            font-size: 48px;
            font-weight: bold;
            color: var(--adv-text-dark);
            text-align: center;
            margin-bottom: 30px;
            line-height: 1.3;
        }

        .adv-section-desc {
            font-size: 18px;
            line-height: 1.75;
            color: var(--adv-text-dark);
            text-align: center;
            max-width: 1100px;
            margin: 0 auto 60px;
            opacity: 0.9;
        }

        .adv-text-white {
            color: var(--adv-text-light) !important;
        }

        /* =========================================
           第一部分：业务亮点 (ROI / 部署快 / 支持好)
           ========================================= */
        .adv-highlights-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: center;
        }

        .adv-highlight-card {
            flex: 1;
            min-width: 320px;
            background-color: #ffffff;
            border-radius: 30px;
            padding: 0px;
            box-shadow: 0 20px 40px rgba(0, 24, 128, 0.08);
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            transition: transform 0.3s;
        }

        .adv-highlight-card:hover {
            transform: translateY(-10px);
        }

        .adv-highlight-img {
            width: 100%;
            height: auto;
            object-fit: contain;
            margin-bottom: 30px;
            border-top-right-radius: 30px;
            border-top-left-radius: 30px;
        }

        .adv-highlight-title {
            font-size: 30px;
            font-weight: bold;
            color: var(--adv-text-blue);
            margin-bottom: 15px;
            padding-left: 40px;
            padding-right: 40px;
        }

        .adv-highlight-desc {
            font-size: 14px;
            line-height: 1.75;
            color: var(--adv-text-dark);
            padding-left: 40px;
            padding-right: 40px;
            padding-bottom: 40px;
        }

        /* =========================================
           第二部分：技术优势 (Tech Advantages)
           ========================================= */
        .adv-tech-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            justify-content: center;
        }

        .adv-tech-card {
            width: calc(25% - 22.5px);
           
            background-image: url('../static/picture/adbg.png');
            background-size: cover;
            background-position: center;
            border-radius: 30px;
            padding: 40px 30px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s;
            position: relative;
            padding-top: 20px;
            padding-bottom: 160px;
        }

        .adv-tech-card:hover {
            transform: translateY(-8px);
        }

        /* 还原原图中的亮青色发光圆形背景 */
        .adv-tech-icon-wrap {
            width: 90px;
            height: 90px;
            background-color: var(--adv-primary-cyan);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 0px;
            box-shadow: 0 10px 20px rgba(10, 255, 171, 0.4);
            position: absolute;
            bottom: 40px;
            right: 80px;
        }

        .adv-tech-icon-wrap img {
            width: 45px;
            height: 45px;
            object-fit: contain;
        }

        .adv-tech-title {
            font-size: 30px;
            font-weight: bold;
            color: var(--adv-text-blue);
            margin-bottom: 15px;
        }

        .adv-tech-desc {
            font-size: 14px;
            line-height: 1.75;
            color: var(--adv-text-dark);
        }

        /* =========================================
           第三部分：商业优势 (Commercial Advantages) 纯色背景
           ========================================= */
        .adv-commercial-section {
            background-color: var(--adv-primary-blue);
          
            background-size: cover;
            padding: 100px 0;
            margin-top: 0px;
        }

        /* =========================================
           第四部分：对比传统方式 / 竞品 (Comparison)
           ========================================= */
        .adv-compare-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 0px;
            align-items: center;
        }

        .adv-compare-card {
            flex: 1;
            min-width: 320px;
            border-radius: 30px;
            padding: 60px 50px;
            display: flex;
            flex-direction: column;
        }

        /* 左侧：传统方式 (浅灰底) */
        .adv-compare-card.light {
            background-color: var(--adv-bg-gray);
            color: var(--adv-text-dark);
            max-width: 600px;
            border-top-right-radius: 0;
            border-bottom-right-radius: 0;
        }

        /* 右侧：ONEBOX方案 (深蓝底) */
        .adv-compare-card.dark {
            background-color: var(--adv-primary-blue);
            color: var(--adv-text-light);
            box-shadow: 0 20px 40px rgba(0, 24, 128, 0.2);
        }

        .adv-compare-title {
            font-size: 36px;
            font-weight: bold;
            margin-bottom: 40px;
            text-align: left;
        }

        .adv-compare-card.light .adv-compare-title {
            font-size: 30px;
        }

        .adv-compare-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .adv-compare-list li {
            display: flex;
            align-items: center;
            gap: 20px;
            font-size: 20px;
            font-weight: 500;
        }

        .advbg{
            width: 100%;
        }

        .adv-compare-card.dark  .adv-compare-list{
            gap:50px;
        }

        .adv-compare-card.dark .adv-compare-list img{
            width: 59px;
            height:59px;
        }

        .adv-compare-card.dark .adv-compare-list li{
            font-size: 24px;
        }

        .adv-compare-list img {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            object-fit: contain;
        }

        /* =========================================
           响应式适配
           ========================================= */
        @media (max-width: 1024px) {
            .adv-tech-card { width: calc(50% - 15px); }
            .adv-compare-grid { flex-direction: column; }
            .adv-section-title { font-size: 38px; }
        }

        @media (max-width: 768px) {
            .adv-tech-card { width: 100%; }
            .adv-highlight-card { padding: 30px 20px; }
            .adv-compare-card { padding: 40px 20px; }
            .adv-section-title { font-size: 32px; }
            .adv-section-desc { font-size: 16px; margin-bottom: 40px; }
            .adv-compare-list li { font-size: 16px; }
            .adv-compare-list img { width: 30px; height: 30px; gap: 15px; }
            .adv-highlight-img { height: 180px; }
        }