/* roulang page: index */
:root {
            --primary: #0F2942;
            --accent: #00A884;
            --surface: #F7F9FC;
            --dark-surface: #091726;
            --border: #E2E8F0;
            --border-dark: #1E3A5F;
            --text-main: #0F172A;
            --text-muted: #475569;
        }
        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        .hero-bg {
            background: linear-gradient(135deg, rgba(15, 41, 66, 0.95) 0%, rgba(9, 23, 38, 0.92) 100%), url('/assets/images/b97bf035bafc5e92.png') center/cover no-repeat;
        }
        .card-hover {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 14px 28px rgba(15, 41, 66, 0.08), 0 10px 10px rgba(15, 41, 66, 0.04);
        }
        .text-glow {
            text-shadow: 0 0 20px rgba(0, 168, 132, 0.4);
        }