/* roulang page: index */
:root {
            --cherry-main: #be123c;
            --cherry-deep: #881337;
            --cherry-light: #fff1f2;
            --text-dark: #0f172a;
            --text-muted: #475569;
            --border-subtle: #f1f5f9;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-dark);
            background-color: #fcfcfd;
            overflow-x: hidden;
            line-height: 1.65;
        }

        .gradient-nav {
            background: linear-gradient(135deg, #881337 0%, #be123c 60%, #e11d48 100%);
        }

        .hero-mesh {
            background-color: #0f172a;
            background-image: 
                radial-gradient(at 0% 0%, rgba(190, 18, 60, 0.45) 0px, transparent 50%),
                radial-gradient(at 100% 100%, rgba(136, 19, 55, 0.5) 0px, transparent 50%),
                radial-gradient(at 50% 50%, rgba(15, 23, 42, 0.9) 0px, transparent 75%);
        }

        .metric-glow-card {
            background: rgba(255, 255, 255, 0.04);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

        .card-surface {
            background: #ffffff;
            border: 1px solid #e2e8f0;
            transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .card-surface:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 32px -8px rgba(190, 18, 60, 0.08), 0 4px 12px -2px rgba(15, 23, 42, 0.04);
            border-color: #fda4af;
        }

        .badge-pill {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.8125rem;
            font-weight: 600;
        }

        .timeline-step::before {
            content: '';
            position: absolute;
            top: 24px;
            left: 50%;
            width: 100%;
            height: 2px;
            background: #e2e8f0;
            z-index: 0;
        }

        @media (max-width: 768px) {
            .timeline-step::before {
                display: none;
            }
        }