/* roulang page: index */
:root {
            --bg-primary: #060913;
            --bg-secondary: #0b1226;
            --cyan-glow: rgba(14, 165, 233, 0.35);
            --orange-glow: rgba(249, 115, 22, 0.4);
            --border-glass: rgba(56, 189, 248, 0.2);
            --text-main: #F8FAFC;
            --text-muted: #94A3B8;
        }

        body {
            background-color: var(--bg-primary);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }

        .glass-panel {
            background: rgba(15, 23, 42, 0.75);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass);
        }

        .glass-panel-hover {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .glass-panel-hover:hover {
            border-color: rgba(56, 189, 248, 0.55);
            box-shadow: 0 10px 30px -10px var(--cyan-glow);
            transform: translateY(-3px);
        }

        .btn-glow {
            background: linear-gradient(135deg, #0EA5E9 0%, #0284C7 100%);
            box-shadow: 0 0 24px rgba(14, 165, 233, 0.45);
            transition: all 0.25s ease;
        }
        .btn-glow:hover {
            box-shadow: 0 0 35px rgba(14, 165, 233, 0.75);
            transform: translateY(-2px);
        }

        .text-gradient-cyan {
            background: linear-gradient(135deg, #F8FAFC 20%, #38BDF8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .text-gradient-orange {
            background: linear-gradient(135deg, #FED7AA 0%, #F97316 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .section-separator {
            position: relative;
        }
        .section-separator::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 10%;
            width: 80%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.2), transparent);
        }

        /* 隐藏原生滚动条 */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #060913;
        }
        ::-webkit-scrollbar-thumb {
            background: #1e293b;
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #38bdf8;
        }