/* roulang page: index */
:root {
            --primary: #0F172A;
            --primary-dark: #0B1120;
            --accent-cyan: #0284C7;
            --accent-green: #10B981;
            --accent-neon: #22C55E;
            --bg-light: #F8FAFC;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --border-color: #E2E8F0;
        }

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
        }

        body {
            color: var(--text-main);
            background-color: var(--bg-light);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        .hero-bg {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(11, 17, 32, 0.97)), url('/assets/images/eff467754b06567a.jpg') center/cover no-repeat;
        }

        .grid-pattern {
            background-size: 32px 32px;
            background-image: linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
                              linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
        }

        .card-custom {
            transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 32px -8px rgba(15, 23, 42, 0.12);
        }

        /* 隐藏水平滚动条但保留功能 */
        .no-scrollbar::-webkit-scrollbar {
            display: none;
        }
        .no-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }