/* roulang page: index */
:root {
            --bg-base: #0B0F14;
            --bg-surface: #141A22;
            --bg-card: rgba(22, 31, 46, 0.75);
            --primary-blue: #0066FF;
            --accent-cyan: #00E599;
            --text-heading: #F1F5F9;
            --text-body: #94A3B8;
            --border-subtle: rgba(56, 189, 248, 0.15);
            --border-glow: rgba(0, 102, 255, 0.4);
        }

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

        /* 芯片网格与光效背景 */
        .chip-grid-bg {
            background-image: 
                radial-gradient(circle at 50% 0%, rgba(0, 102, 255, 0.18) 0%, transparent 60%),
                linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
                linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
            background-size: 100% 100%, 48px 48px, 48px 48px;
        }

        .wafer-texture {
            background: linear-gradient(135deg, rgba(20, 26, 34, 0.9) 0%, rgba(11, 15, 20, 0.95) 100%);
            border: 1px solid var(--border-subtle);
            box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.8);
        }

        .card-hover-fx {
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .card-hover-fx:hover {
            transform: translateY(-4px);
            border-color: var(--border-glow);
            box-shadow: 0 12px 30px -10px rgba(0, 102, 255, 0.25);
        }

        .glow-btn {
            box-shadow: 0 0 20px rgba(0, 102, 255, 0.35);
            transition: all 0.25s ease;
        }
        .glow-btn:hover {
            box-shadow: 0 0 30px rgba(0, 102, 255, 0.6);
            transform: translateY(-1px);
        }

        /* 手风琴动画控制 */
        .faq-item input:checked ~ .faq-content {
            max-height: 380px;
            opacity: 1;
            padding-top: 1rem;
        }
        .faq-item input:checked ~ label .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent-cyan);
        }
        .faq-item input:checked ~ label {
            border-color: var(--primary-blue);
        }

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