/* roulang page: index */
:root {
            --bg-base: #060B19;
            --bg-surface: rgba(17, 30, 56, 0.65);
            --border-glow: rgba(0, 242, 254, 0.2);
            --cyan-glow: #00F2FE;
            --blue-glow: #3B82F6;
            --emerald-glow: #10B981;
            --text-title: #F8FAFC;
            --text-body: #94A3B8;
            --text-muted: #64748B;
        }

        body {
            background-color: var(--bg-base);
            color: var(--text-body);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.75;
            overflow-x: hidden;
        }

        /* 玻璃拟态卡片 */
        .glass-panel {
            background: rgba(13, 25, 48, 0.72);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(0, 242, 254, 0.16);
            box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
            transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .glass-panel:hover {
            border-color: rgba(0, 242, 254, 0.45);
            transform: translateY(-4px);
            box-shadow: 0 15px 35px -5px rgba(0, 242, 254, 0.15);
        }

        /* 发光按钮 */
        .btn-glow {
            background: linear-gradient(135deg, #00F2FE 0%, #3B82F6 100%);
            color: #040814;
            font-weight: 700;
            box-shadow: 0 0 20px rgba(0, 242, 254, 0.35);
            transition: all 0.3s ease;
        }

        .btn-glow:hover {
            box-shadow: 0 0 30px rgba(0, 242, 254, 0.65);
            transform: scale(1.02);
            color: #000;
        }

        /* 幽灵描边按钮 */
        .btn-outline-glow {
            background: rgba(0, 242, 254, 0.05);
            border: 1px solid rgba(0, 242, 254, 0.4);
            color: #E2E8F0;
            transition: all 0.3s ease;
        }

        .btn-outline-glow:hover {
            background: rgba(0, 242, 254, 0.15);
            border-color: #00F2FE;
            color: #00F2FE;
            box-shadow: 0 0 15px rgba(0, 242, 254, 0.25);
        }

        /* 标题渐变 */
        .text-gradient {
            background: linear-gradient(135deg, #FFFFFF 30%, #00F2FE 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        /* 脉冲光效点 */
        .glow-dot {
            width: 8px;
            height: 8px;
            background-color: #00F2FE;
            border-radius: 50%;
            box-shadow: 0 0 12px #00F2FE;
            animation: pulse-glow 2s infinite;
        }

        @keyframes pulse-glow {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.85); }
        }

        /* 滚动条定制 */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #060B19;
        }
        ::-webkit-scrollbar-thumb {
            background: #11264E;
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #00F2FE;
        }