html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8fafc;
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
        }
        .typing-cursor {
            display: inline-block;
            border-right: 3px solid #DC143C;
            white-space: nowrap;
            overflow: hidden;
            animation: blinkCaret 0.75s step-end infinite;
        }
        @keyframes blinkCaret {
            50% { border-color: transparent; }
        }
        .card-hover {
            transition: all 0.25s ease;
        }
        .card-hover:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -12px rgba(0, 0, 0, 0.1);
        }
        /* 自定义加载效果 */
        .feature-icon-bg {
            background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%);
        }
        .gradient-text {
            background: linear-gradient(135deg, #0055ff, #DC143C);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        /* 金字塔沙漏结构样式 */
        .stats-grid {
            backdrop-filter: blur(4px);
        }
        .contact-float {
            transition: transform 0.2s;
        }
        .contact-float:hover {
            transform: scale(1.02);
        }
        @media (max-width: 640px) {
            .container-padding {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
        }