/* roulang page: index */
:root {
            --color-primary-navy: #1A365D;
            --color-deep: #0F2027;
            --color-cyan: #0EA5E9;
            --color-gold: #F59E0B;
            --bg-canvas: #F8FAFC;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
            color: #0F172A;
            background-color: var(--bg-canvas);
            -webkit-font-smoothing: antialiased;
        }

        .hero-pattern {
            background-image: radial-gradient(rgba(14, 165, 233, 0.12) 1px, transparent 1px);
            background-size: 24px 24px;
        }

        .card-soft-shadow {
            box-shadow: 0 4px 20px -2px rgba(15, 32, 39, 0.05);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .card-soft-shadow:hover {
            box-shadow: 0 16px 32px -4px rgba(15, 32, 39, 0.12);
            transform: translateY(-4px);
        }

        .btn-shimmer {
            position: relative;
            overflow: hidden;
        }

        .btn-shimmer::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(60deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transform: rotate(30deg);
            transition: all 0.8s ease;
        }

        .btn-shimmer:hover::after {
            left: 100%;
            top: 100%;
        }

        /* 手风琴平滑旋转效果 */
        details summary::-webkit-details-marker {
            display: none;
        }
        details[open] summary .faq-chevron {
            transform: rotate(180deg);
        }

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