@keyframes breathing-shadow {
            0% { box-shadow: 0 0 15px rgba(59, 130, 246, 0.3); transform: translateY(0); }
            50% { box-shadow: 0 0 30px rgba(59, 130, 246, 0.7); transform: translateY(-5px); }
            100% { box-shadow: 0 0 15px rgba(59, 130, 246, 0.3); transform: translateY(0); }
        }
        .img-breathe {
            animation: breathing-shadow 3s infinite ease-in-out;
            border-radius: 0.75rem;
        }
        /* 强制补充一些基础样式，防止建站系统丢失 Tailwind 卡片效果 */
        .b2b-card {
            background-color: #ffffff;
            padding: 2rem;
            border-radius: 0.75rem;
            box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            border: 1px solid #e5e7eb;
            display: flex;
            flex-direction: column;
        }
        .b2b-card:hover {
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
        }