/* roulang page: index */
:root {
            --brand-primary: #FF5500;
            --brand-secondary: #00E599;
            --brand-bg: #F8FAFC;
            --brand-dark: #0B0E14;
        }
        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        .hero-slant {
            clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
        }
        .text-glow {
            text-shadow: 0 0 20px rgba(255, 85, 0, 0.4);
        }
        .card-hover-effect {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-hover-effect:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 30px -10px rgba(0, 0, 0, 0.08);
        }
        .badge-glow {
            box-shadow: 0 0 12px rgba(0, 229, 153, 0.35);
        }
        .btn-gradient {
            background: linear-gradient(135deg, #FF5500 0%, #FF8800 100%);
            box-shadow: 0 10px 25px -5px rgba(255, 85, 0, 0.4);
            transition: all 0.25s ease;
        }
        .btn-gradient:hover {
            background: linear-gradient(135deg, #E04B00 0%, #FF7700 100%);
            box-shadow: 0 14px 28px -5px rgba(255, 85, 0, 0.55);
            transform: translateY(-1px);
        }