/* roulang page: index */
:root {
            --bg-main: #0B0D11;
            --bg-card: #141820;
            --bg-highlight: #1C222E;
            --primary: #00DC82;
            --indigo: #6366F1;
            --text-main: #F1F5F9;
            --text-muted: #94A3B8;
            --border: rgba(255, 255, 255, 0.08);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--bg-main);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
            line-height: 1.6;
        }
        .code-font {
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
        }
        .inset-glow-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .inset-glow-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 220, 130, 0.4);
            box-shadow: 0 20px 40px -15px rgba(0, 220, 130, 0.15);
        }
        .hero-banner-bg {
            background-image: linear-gradient(to bottom, rgba(11, 13, 17, 0.88), rgba(11, 13, 17, 0.98)), url('/assets/images/6f31979a72961a09.png');
            background-size: cover;
            background-position: center;
        }
        .guarantee-bar {
            background: linear-gradient(90deg, rgba(20, 24, 32, 0.95) 0%, rgba(99, 102, 241, 0.15) 50%, rgba(20, 24, 32, 0.95) 100%);
        }