/* 全局重置 & 基础样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", "思源黑体", sans-serif;
        }
        body {
            color: #333;
            background: #fff;
            line-height: 1.6;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        /* 通用样式 */
        .red-text {
            color: #e63946;
        }
        .bold {
            font-weight: 700;
        }
        .section-title {
            text-align: center;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 40px;
            color: #1d3557;
        }
        .btn-red {
            display: inline-block;
            background: #e63946;
            color: #fff;
            padding: 10px 25px;
            text-decoration: none;
            border-radius: 4px;
            font-weight: 600;
            transition: background 0.3s;
        }
        .btn-red:hover {
            background: #d62828;
        }
        /* 图片核心样式 - 保证任意尺寸完整显示 + 快速加载 */
        .img-responsive {
            display: block;
            width: 100%;
            height: 100%;
            object-fit: cover; /* 保持比例，完整显示 */
            object-position: center; /* 居中展示核心内容 */
            border-radius: inherit;
            /* 优化加载性能 */
            image-rendering: -webkit-optimize-contrast;
            image-rendering: crisp-edges;
        }
        /* 图片容器统一样式 */
        .img-box {
            overflow: hidden; /* 隐藏超出部分 */
            border-radius: 4px;
        }
        /* Banner 区域 */
        .banner {
            background: linear-gradient(135deg, #1d3557 0%, #457b9d 100%);
            color: #fff;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
            height: 605px;
        }
        /* Banner背景图容器 - 独立控制尺寸和层级 */
        .banner-img-box {
            position: absolute;
            top: 0;
            right: 0;
            width: 40%;
            height: 100%;
            opacity: 0.2;
            z-index: 1;
        }
        .banner-content {
            position: relative;
            z-index: 2; /* 保证文字在图片上层 */
        }
        .banner-title {
            font-size: 42px;
            font-weight: 700;
            margin-bottom: 15px;
            margin-top: 150px;
        }
        .banner-subtitle {
            font-size: 18px;
            margin-bottom: 30px;
            max-width: 700px;
        }
        .banner-cta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .banner-contact {
            font-size: 16px;
        }
        /* 面包屑导航 */
        .breadcrumb {
            background: #fff;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 99;
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            gap: 10px;
            align-items: center;
        }
        .breadcrumb-item a {
            color: #333;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s;
        }
        .breadcrumb-item a:hover {
            color: #e63946;
        }
        .breadcrumb-item .separator {
            color: #999;
            margin: 0 5px;
        }
        .breadcrumb-item.active {
            color: #e63946;
            font-weight: 500;
        }
        /* 应用场景板块 */
        .scenes {
            padding: 80px 0;
        }
        .scenes-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .scene-card {
            background: #f8f9fa;
            padding: 25px;
            border-radius: 8px;
            transition: transform 0.3s;
        }
        .scene-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        }
        .scene-img-box {
            width: 100%;
            height: 180px;
            margin-bottom: 20px;
        }
        .scene-title {
            font-size: 18px;
            font-weight: 700;
            color: #1d3557;
            margin-bottom: 15px;
        }
        .scene-list {
            list-style: disc;
            padding-left: 20px;
            font-size: 14px;
            color: #555;
        }
        .scene-list li {
            margin-bottom: 8px;
        }
        /* 核心优势板块 */
        .advantages {
            padding: 80px 0;
            background: #f1faee;
        }
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .advantage-card {
            background: linear-gradient(180deg, #fff 0%, #f8f9fa 100%);
            padding: 30px;
            border-radius: 8px;
            text-align: center;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }
        .advantage-icon-box {
            width: 100px;
            height: 100px;
            margin: 0 auto 20px;
        }
        .advantage-title {
            font-size: 18px;
            font-weight: 700;
            color: #1d3557;
            margin-bottom: 15px;
        }
        .advantage-desc {
            font-size: 14px;
            color: #555;
            line-height: 1.7;
        }
        /* 痛点解决方案板块 */
        .solutions {
            padding: 80px 0;
        }
        .solution-item {
            display: flex;
            align-items: center;
            margin-bottom: 60px;
            gap: 40px;
        }
        .solution-item:last-child {
            margin-bottom: 0;
        }
        .solution-text {
            flex: 1;
        }
        .solution-img-box {
            flex: 1;
            height: 300px;
        }
        .solution-title {
            font-size: 20px;
            font-weight: 700;
            color: #1d3557;
            margin-bottom: 20px;
        }
        .solution-list {
            list-style: none;
            font-size: 16px;
            color: #555;
        }
        .solution-list li {
            margin-bottom: 12px;
            padding-left: 20px;
            position: relative;
        }
        .solution-list li::before {
            content: "●";
            color: #e63946;
            position: absolute;
            left: 0;
        }
        /* 服务体系板块 */
        .services {
            padding: 80px 0;
            background: #f8f9fa;
        }
        .services-flow {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .service-step {
            flex: 1;
            background: linear-gradient(135deg, #fff 0%, #e0f7fa 100%);
            padding: 30px 20px;
            border-radius: 8px;
            text-align: center;
            position: relative;
        }
        .service-step:not(:last-child)::after {
            content: "→";
            position: absolute;
            right: -25px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 24px;
            color: #1d3557;
            font-weight: 700;
        }
        .service-icon-box {
            width: 100px;
            height: 100px;
            margin: 0 auto 15px;
        }
        .service-title {
            font-size: 18px;
            font-weight: 700;
            color: #1d3557;
            margin-bottom: 15px;
        }
        .service-desc {
            font-size: 14px;
            color: #555;
            line-height: 1.6;
        }
        /* 响应式适配 */
        @media (max-width: 992px) {
            .scenes-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .solution-item {
                flex-direction: column;
            }
            .solution-text, .solution-img-box {
                flex: none;
                width: 100%;
            }
            .services-flow {
                flex-wrap: wrap;
            }
            .service-step {
                flex: 0 0 48%;
                margin-bottom: 20px;
            }
            .service-step:not(:last-child)::after {
                display: none;
            }
        }
        @media (max-width: 576px) {
            .banner-title {
                font-size: 32px;
            }
            .scenes-grid {
                grid-template-columns: 1fr;
            }
            .advantages-grid {
                grid-template-columns: 1fr;
            }
            .service-step {
                flex: 0 0 100%;
            }
            .breadcrumb-list {
                flex-wrap: wrap;
                gap: 8px;
            }
            .banner-cta {
                flex-direction: column;
                align-items: flex-start;
            }
        }