<style>
       .section-1 {
            background-color: #ffffff;
            font-family: Microsoft YaHei；
        }
        .section-main-title {
            font-size: 24px;
            color: #1a1a1a;
            font-weight: bold;
            text-align: center;
            margin-bottom: 40px;
        }
        .intro-top {
            display: flex;
            gap: 40px;
            align-items: center;
            margin-bottom: 50px;
            font-family: Microsoft YaHei；
        }
        .intro-text {
            flex: 1;
        }
        .intro-text p {
            font-size: 18px;
            color: #333333;
            margin-bottom: 16px;
            text-align: justify;
        }
        .intro-image {
            flex: 1;
        }
        .placeholder-img {
            width: 100%;
            height: 400px;
            background-color: #e9ecef;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #6c757d;
            font-size: 20px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            width: 100%;
        }
        .stat-item {
            background-color: #ffffff;
            padding: 25px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            text-align: center;
            min-width: 180px;
            font-family: Microsoft YaHei；
        }
        .stat-number {
            font-size: 48px;
            font-weight: bold;
            color: #0066cc;
            line-height: 1.2;
            display: inline-block;
        }
        .stat-unit {
            font-size: 24px;
            color: #0066cc;
            display: inline-block;
            margin-left: 4px;
        }
        .stat-label {
            font-size: 20px;
            color: #666666;
            margin-top: 8px;
            font-weight: 500;
            text-align: center;
        }

        .section-2 {
            background-color: #f8f9fa;
            font-family: Microsoft YaHei；
        }
        .section-title {
            font-size: 24px;
            color: #1a1a1a;
            margin-bottom: 30px;
            text-align: center;
            font-weight: bold;
            padding-top:40px;
        }
        .video-wrapper {
            width: 100%;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        video {
            width: 100%;
            height: auto;
            display: block;
            background-color: #000;
        }
        .section-3 {
            background-color: #ffffff;
            font-family: Microsoft YaHei；
        }
        .office-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .office-item {
            background-color: #e9ecef;
            height: 250px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #6c757d;
            font-size: 18px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
        }
        @media (max-width: 992px) {
            .intro-top {
                flex-direction: column;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .office-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .office-grid {
                grid-template-columns: 1fr;
            }
        }</style>