/* roulang page: index */
:root {
            --primary: #10B981;
            --primary-dark: #059669;
            --accent: #F97316;
            --cyan: #06B6D4;
            --bg-pitch: #0A0F1D;
            --card-pitch: #131B2E;
            --border-pitch: #1E293B;
            --text-main: #F8FAFC;
            --text-muted: #94A3B8;
        }
        body {
            background-color: var(--bg-pitch);
            color: var(--text-muted);
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
        }
        .glow-emerald {
            box-shadow: 0 0 25px rgba(16, 185, 129, 0.2);
        }
        .glow-cyan {
            box-shadow: 0 0 25px rgba(6, 182, 212, 0.15);
        }
        .text-glow {
            text-shadow: 0 0 12px rgba(16, 185, 129, 0.4);
        }
        .step-line {
            background: linear-gradient(90deg, #10B981 0%, #06B6D4 100%);
        }
        .accordion-content {
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
        }
        .accordion-content.open {
            max-height: 500px;
            transition: max-height 0.3s ease-in-out;
        }