/* roulang page: index */
:root {
            --primary: #1e40af;
            --primary-hover: #1d4ed8;
            --accent: #0ea5e9;
            --bg-main: #f8fafc;
            --border-color: #e2e8f0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-main);
            color: #1e293b;
            -webkit-font-smoothing: antialiased;
        }
        .custom-card-shadow {
            box-shadow: 0 4px 20px -2px rgba(30, 64, 175, 0.05), 0 2px 6px -1px rgba(0, 0, 0, 0.03);
            transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .custom-card-shadow:hover {
            box-shadow: 0 12px 28px -4px rgba(30, 64, 175, 0.12), 0 4px 10px -2px rgba(0, 0, 0, 0.04);
            transform: translateY(-2px);
        }

/* roulang page: article */
:root {
            --primary: #1e40af;
            --primary-hover: #1d4ed8;
            --accent: #0ea5e9;
            --bg-main: #f8fafc;
            --border-color: #e2e8f0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-main);
            color: #1e293b;
            -webkit-font-smoothing: antialiased;
        }
        .custom-card-shadow {
            box-shadow: 0 4px 20px -2px rgba(30, 64, 175, 0.05), 0 2px 6px -1px rgba(0, 0, 0, 0.03);
            transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .custom-card-shadow:hover {
            box-shadow: 0 12px 28px -4px rgba(30, 64, 175, 0.12), 0 4px 10px -2px rgba(0, 0, 0, 0.04);
            transform: translateY(-2px);
        }
        .prose-article {
            color: #334155;
            font-size: 1.0625rem;
            line-height: 1.85;
        }
        .prose-article h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: #0f172a;
            margin-top: 2rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        .prose-article h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: #1e293b;
            margin-top: 1.5rem;
            margin-bottom: 0.75rem;
        }
        .prose-article p {
            margin-bottom: 1.25rem;
            text-align: justify;
        }
        .prose-article ul, .prose-article ol {
            margin-bottom: 1.25rem;
            padding-left: 1.5rem;
        }
        .prose-article li {
            margin-bottom: 0.5rem;
        }
        .prose-article blockquote {
            border-left: 4px solid var(--primary);
            padding: 0.75rem 1.25rem;
            background-color: #f1f5f9;
            color: #475569;
            font-style: italic;
            border-radius: 0 0.5rem 0.5rem 0;
            margin: 1.5rem 0;
        }
        .prose-article img {
            border-radius: 0.75rem;
            margin: 1.5rem auto;
            max-width: 100%;
            height: auto;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
        }