/* roulang page: index */
:root {
            --brand-primary: #007A87;
            --brand-secondary: #00A3A6;
            --brand-purple: #5A45FF;
            --brand-amber: #FF9F1C;
            --brand-dark: #0B132B;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: #F8FAFC;
            color: #1E293B;
            line-height: 1.75;
        }
        .hero-diagonal {
            clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
        }
        @media (max-width: 768px) {
            .hero-diagonal {
                clip-path: none;
            }
        }
        .text-gradient {
            background: linear-gradient(135deg, #007A87 0%, #00A3A6 50%, #5A45FF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .card-shadow {
            box-shadow: 0 12px 36px -6px rgba(0, 122, 135, 0.08);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .card-shadow:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 40px -8px rgba(0, 122, 135, 0.16);
        }