/* roulang page: index */
:root {
            --primary-graphite: #0B132B;
            --clinical-teal: #0F766E;
            --clinical-teal-light: #14B8A6;
            --diagnostic-amber: #F59E0B;
            --scan-cyan: #06B6D4;
            --bg-clean: #F8FAFC;
            --bg-cold: #F1F5F9;
            --cockpit-dark: #0F172A;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
        }

        body {
            background-color: var(--bg-clean);
            color: var(--text-body);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            -webkit-font-smoothing: antialiased;
        }

        .precision-border {
            border: 1px solid rgba(15, 118, 110, 0.15);
        }

        .precision-border-dark {
            border: 1px solid rgba(6, 182, 212, 0.2);
        }

        .clinical-shadow {
            box-shadow: 0 4px 20px rgba(11, 19, 43, 0.04);
        }

        .clinical-shadow-hover:hover {
            box-shadow: 0 12px 30px rgba(15, 118, 110, 0.08);
            transform: translateY(-2px);
        }

        .reticle-mark {
            background-image: radial-gradient(rgba(15, 118, 110, 0.12) 1px, transparent 1px);
            background-size: 24px 24px;
        }

        .scanline {
            background: linear-gradient(180deg, rgba(6, 182, 212, 0) 0%, rgba(6, 182, 212, 0.18) 50%, rgba(6, 182, 212, 0) 100%);
            animation: scan 4s linear infinite;
        }

        @keyframes scan {
            0% { transform: translateY(-100%); }
            100% { transform: translateY(1000%); }
        }

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