/* roulang page: index */
:root {
            --primary: #0F62FE;
            --primary-dark: #0043CE;
            --accent: #00D084;
            --accent-dark: #059669;
            --bg-main: #F8FAFC;
            --text-title: #0F172A;
            --text-body: #475569;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-main);
            color: var(--text-body);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        .text-gradient {
            background: linear-gradient(135deg, #0F62FE 0%, #7C3AED 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .card-blur {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
        }
        .badge-glow {
            box-shadow: 0 0 12px rgba(15, 98, 254, 0.2);
        }
        .survey-card {
            border: 2px solid transparent;
            transition: all 0.25s ease-in-out;
        }
        .survey-card:hover, .survey-card.active {
            border-color: #0F62FE;
            background-color: #F0F7FF;
        }