/* roulang page: index */
:root {
            --color-primary: #1B4332;
            --color-primary-dark: #081C15;
            --color-accent: #DDA15E;
            --color-accent-hover: #BC6C25;
            --color-bg-light: #F8F9FA;
            --color-bg-soft: #E9F5ED;
            --color-text-main: #1F2937;
            --color-text-muted: #4B5563;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--color-text-main);
            background-color: var(--color-bg-light);
            scroll-behavior: smooth;
        }
        .btn-gold {
            background-color: var(--color-accent);
            color: #ffffff;
            transition: all 0.25s ease;
        }
        .btn-gold:hover {
            background-color: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 15px -3px rgba(221, 161, 94, 0.3);
        }
        .hero-banner-bg {
            background-image: linear-gradient(rgba(8, 28, 21, 0.85), rgba(8, 28, 21, 0.88)), url('/assets/images/fab9a2186ffa0036.jpg');
            background-size: cover;
            background-position: center;
        }
        .tech-center-bg {
            background-image: linear-gradient(rgba(8, 28, 21, 0.94), rgba(8, 28, 21, 0.96)), url('/assets/images/840b2f18bebc6ec4.jpg');
            background-size: cover;
            background-position: center;
        }