/* roulang page: index */
:root {
            --primary: #10B981;
            --primary-hover: #059669;
            --accent: #6366F1;
            --bg-main: #F8FAFC;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border-color: #E2E8F0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            color: var(--text-body);
            background-color: var(--bg-main);
            overflow-x: hidden;
        }
        .text-heading { color: var(--text-heading); }
        .text-body { color: var(--text-body); }
        .text-muted { color: var(--text-muted); }
        .card-shadow { box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05); }
        .card-shadow-hover:hover { box-shadow: 0 16px 32px -4px rgba(15, 23, 42, 0.12); }
        .hero-bg {
            background-image: linear-gradient(rgba(11, 15, 25, 0.88), rgba(11, 15, 25, 0.94)), url('/assets/images/bb99063c33a66eb0.webp');
            background-size: cover;
            background-position: center;
        }
        .smooth-transition { transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
        input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }