/* roulang page: index */
:root {
            --primary: #0066FF;
            --accent: #00F0FF;
            --purple: #7000FF;
            --bg-deep: #030712;
            --bg-card: rgba(6, 13, 31, 0.75);
            --border-glow: rgba(0, 240, 255, 0.2);
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            background-color: var(--bg-deep);
            color: #e2e8f0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
            line-height: 1.6;
        }

        /* 玻璃拟态卡片系统 */
        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glow);
            box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.45);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .glass-card:hover {
            border-color: rgba(0, 240, 255, 0.5);
            box-shadow: 0 12px 40px 0 rgba(0, 240, 255, 0.15);
            transform: translateY(-2px);
        }

        /* 痛点微光边缘卡片 */
        .pain-card {
            background: rgba(15, 23, 42, 0.65);
            backdrop-filter: blur(14px);
            border: 1px solid rgba(225, 29, 72, 0.25);
            box-shadow: 0 8px 25px -5px rgba(225, 29, 72, 0.1);
            transition: all 0.3s ease;
        }

        .pain-card:hover {
            border-color: rgba(225, 29, 72, 0.55);
            box-shadow: 0 12px 35px -5px rgba(225, 29, 72, 0.25);
            transform: translateY(-2px);
        }

        /* 发光按钮系统 */
        .btn-neon {
            background: linear-gradient(135deg, #0066FF 0%, #00F0FF 100%);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
            color: #ffffff;
            font-weight: 600;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .btn-neon:hover {
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.65);
            transform: scale(1.02);
        }

        .btn-neon:active {
            transform: scale(0.98);
        }

        .btn-outline-glow {
            border: 1px solid rgba(0, 240, 255, 0.4);
            background: rgba(0, 102, 255, 0.1);
            color: #00F0FF;
            transition: all 0.3s ease;
        }

        .btn-outline-glow:hover {
            background: rgba(0, 240, 255, 0.2);
            border-color: #00F0FF;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
        }

        /* 状态指示呼吸灯 */
        .pulse-dot {
            width: 8px;
            height: 8px;
            background-color: #00F0FF;
            border-radius: 50%;
            box-shadow: 0 0 10px #00F0FF;
            animation: pulse-ring 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
        }

        @keyframes pulse-ring {
            0%, 100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.3);
            }
        }

        /* 荧光下划线导航动效 */
        .nav-link {
            position: relative;
            color: #94a3b8;
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.25s ease;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: -6px;
            left: 0;
            background: #00F0FF;
            box-shadow: 0 0 8px #00F0FF;
            transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .nav-link:hover {
            color: #ffffff;
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

        .nav-link.active {
            color: #00F0FF;
        }

        /* 泳道机制连接线 */
        .swimlane-connector {
            background: linear-gradient(90deg, rgba(0, 102, 255, 0.1) 0%, rgba(0, 240, 255, 0.6) 50%, rgba(0, 102, 255, 0.1) 100%);
            height: 2px;
        }

        /* 无障碍焦点样式 */
        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 2px solid #00F0FF;
            outline-offset: 3px;
        }

        /* 隐藏原生数字输入箭头 */
        input::-webkit-outer-spin-button,
        input::-webkit-inner-spin-button {
            -webkit-appearance: none;
            margin: 0;
        }