/* roulang page: index */
:root {
            --brand-navy: #0B192C;
            --brand-electric: #005BFF;
            --brand-emerald: #00BA7C;
            --bg-titanium: #F4F6F9;
            --text-main: #1E293B;
            --text-sub: #475569;
            --border-light: #E2E8F0;
        }
        html {
            scroll-behavior: smooth;
            font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        body {
            color: var(--text-main);
            background-color: #FFFFFF;
            line-height: 1.7;
        }
        .hero-bg-overlay {
            background: linear-gradient(135deg, rgba(7, 16, 29, 0.94) 0%, rgba(11, 25, 44, 0.88) 55%, rgba(0, 91, 255, 0.65) 100%);
        }
        .hero-bg-wrapper {
            background-image: url('/assets/images/dd8109545b447fdc.jpg');
            background-size: cover;
            background-position: center;
        }
        .badge-pulse {
            box-shadow: 0 0 0 0 rgba(0, 186, 124, 0.7);
            animation: pulse-ring 2s infinite cubic-bezier(0.66, 0, 0, 1);
        }
        @keyframes pulse-ring {
            0% { box-shadow: 0 0 0 0 rgba(0, 186, 124, 0.7); }
            70% { box-shadow: 0 0 0 10px rgba(0, 186, 124, 0); }
            100% { box-shadow: 0 0 0 0 rgba(0, 186, 124, 0); }
        }
        details summary::-webkit-details-marker {
            display: none;
        }
        .focus-outline:focus-visible {
            outline: 2px solid #005BFF;
            outline-offset: 2px;
        }