body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            margin: 0;
            padding: 0;
            background:  linear-gradient(135deg,#f5f7fa 0%, #ffffff 100%);
            color: #333;
            overflow-x: hidden;
        }
        .one_content {
            max-width: 1100px;
            margin: 40px auto;
            padding: 0 20px;
        }
        .one_intro {
            text-align: center;
            margin-bottom: 40px;
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInUp 1s ease-out 1.3s forwards;
        }
        .one_intro h1 {
            font-size: 1.8rem;
            color: #2a5c40;
            margin-bottom: 20px;
        }
        .one_intro p {
            font-size: 1.1rem;
            line-height: 1.8;
            max-width: 800px;
            margin: 0 auto;
            color: #555;
        }
        .benefits {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 20px;
            margin-top: 40px;
        }
        .benefit-card {
            width: calc(25% - 20px);
            background-color: white;
            border-radius: 12px;
            box-shadow: linear-gradient(to bottom, #ffffff, #f7f7f7);
            overflow: hidden;
            transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
            position: relative;
            margin-bottom: 20px;
            border: 1px solid rgba(0,0,0,0.08);
            opacity: 0;
            transform: translateY(50px);
        }
        .benefit-card:nth-child(1) {
            animation: fadeInUp 0.8s ease-out 2s forwards;
        }
        .benefit-card:nth-child(2) {
            animation: fadeInUp 0.8s ease-out 2.2s forwards;
        }
        .benefit-card:nth-child(3) {
            animation: fadeInUp 0.8s ease-out 2.4s forwards;
        }
        .benefit-card:nth-child(4) {
            animation: fadeInUp 0.8s ease-out 2.6s forwards;
        }
        .benefit-card:hover {
            transform: translateY(-10px) scale(1.03);
            box-shadow: 0 20px 40px rgba(0,0,0,0.25), 
                        0 12px 20px rgba(0,0,0,0.2),
                        inset 0 -4px 12px rgba(0,0,0,0.1),
                        0 0 0 1px rgba(0,0,0,0.05);
            z-index: 20;
        }
        .benefit-img-container {
            position: relative;
            overflow: hidden;
            height: 200px;
            border-radius: 12px 12px 0 0;
            box-shadow: inset 0 -2px 10px rgba(0,0,0,0.1);
        }
        .benefit-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
            filter: brightness(0.98) contrast(1.05);
        }
        .benefit-card:hover .benefit-img {
            transform: scale(1.08);
            filter: brightness(1) contrast(1.1);
        }
        .benefit-content {
            padding-bottom: 40px;
            text-align: center;
            border-radius: 0 0 12px 12px;
            position: relative;
            z-index: 2;
        }
        .benefit-content:before {
            content: '';
            position: absolute;
            top: -10px;
            left: 0;
            right: 0;
            height: 10px;
            background: linear-gradient(to bottom, rgba(0,0,0,0.05), transparent);
        }
        .benefit-title {
            font-size: 1.4rem;
            color: #2a5c40;
            margin-bottom: 15px;
            font-weight: 700;
            text-shadow: 1px 1px 2px rgba(0,0,0,0.05);
        }
        .benefit-desc {
            font-size: 1.05rem;
            line-height: 1.7;
            color: #555;
            position: relative;
            z-index: 1;
        }
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        @keyframes fadeInUp {
            from { 
                opacity: 0;
                transform: translateY(50px);
            }
            to { 
                opacity: 1;
                transform: translateY(0);
            }
        }
        @media (max-width: 992px) {
            .benefit-card {
                width: calc(50% - 15px);
            }
            .benefit-card:nth-child(1), 
            .benefit-card:nth-child(2) {
                animation-delay: 2s;
            }
            .benefit-card:nth-child(3), 
            .benefit-card:nth-child(4) {
                animation-delay: 2.2s;
            }
        }
        @media (max-width: 576px) {
            .benefit-card {
                width: 100%;
                animation-delay: 2s !important;
            }
            .header h1 {
                font-size: 2rem;
                left: 5%;
            }
            .benefit-img-container {
                height: 180px;
            }
        }