/* roulang page: index */
:root {
            --primary: #0F2B3C;
            --accent: #F26419;
            --bg-soft: #E8EFF5;
            --text-main: #1F2937;
            --text-sub: #64748B;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: #F8FAFC;
        }
        .hero-slant {
            clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
        }
        @media (max-width: 768px) {
            .hero-slant {
                clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
            }
        }
        .text-glow {
            text-shadow: 0 2px 10px rgba(0,0,0,0.3);
        }
        .card-shadow {
            box-shadow: 0 4px 20px -2px rgba(15, 43, 60, 0.08);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-shadow:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 28px -4px rgba(15, 43, 60, 0.16);
        }