/* roulang page: index */
:root {
            --brand-main: #1E40AF;
            --brand-light: #2563EB;
            --brand-bg: #F8FAFC;
            --border-color: #E2E8F0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--brand-bg);
            color: #1e293b;
            overflow-x: hidden;
        }
        .code-matrix {
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
        }
        .pulse-light {
            animation: pulse-dot 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.85); }
        }
        .drawer-mask {
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }
        .drawer-body {
            transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
        }

/* roulang page: category1 */
:root {
            --brand-main: #1E40AF;
            --brand-light: #2563EB;
            --brand-bg: #F8FAFC;
            --border-color: #E2E8F0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--brand-bg);
            color: #1e293b;
            overflow-x: hidden;
        }
        .code-matrix {
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
        }
        .drawer-mask {
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }
        .drawer-body {
            transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .category-card-shadow {
            box-shadow: 0 10px 25px -5px rgba(30, 64, 175, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.03);
        }
        .category-card-shadow:hover {
            box-shadow: 0 20px 30px -10px rgba(30, 64, 175, 0.1), 0 10px 15px -5px rgba(15, 23, 42, 0.04);
        }

/* roulang page: article */
:root {
            --brand-main: #1E40AF;
            --brand-light: #2563EB;
            --brand-bg: #F8FAFC;
            --border-color: #E2E8F0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--brand-bg);
            color: #1e293b;
            overflow-x: hidden;
        }
        .code-matrix {
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
        }
        .drawer-mask {
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }
        .drawer-body {
            transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .article-prose {
            color: #334155;
            font-size: 1.0625rem;
            line-height: 1.85;
        }
        .article-prose h2 {
            font-size: 1.625rem;
            font-weight: 700;
            color: #0f172a;
            margin-top: 2.5rem;
            margin-bottom: 1.25rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #e2e8f0;
            display: flex;
            align-items: center;
        }
        .article-prose h2::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 1.25rem;
            background: #2563EB;
            border-radius: 2px;
            margin-right: 0.75rem;
        }
        .article-prose h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: #1e293b;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        .article-prose p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .article-prose blockquote {
            position: relative;
            background: #f1f5f9;
            border-left: 4px solid #2563EB;
            padding: 1.25rem 1.5rem;
            border-radius: 0 0.75rem 0.75rem 0;
            color: #475569;
            font-style: normal;
            margin: 1.75rem 0;
        }
        .article-prose ul {
            list-style-type: disc;
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .article-prose ol {
            list-style-type: decimal;
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .article-prose li {
            margin-bottom: 0.5rem;
        }
        .article-prose table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            font-size: 0.9375rem;
        }
        .article-prose th, .article-prose td {
            border: 1px solid #e2e8f0;
            padding: 0.75rem 1rem;
            text-align: left;
        }
        .article-prose th {
            background-color: #f8fafc;
            color: #0f172a;
            font-weight: 600;
        }
        .article-prose code {
            background-color: #f1f5f9;
            color: #1e40af;
            padding: 0.2rem 0.4rem;
            border-radius: 0.25rem;
            font-size: 0.875em;
        }

/* roulang page: category2 */
:root {
            --brand-main: #1E40AF;
            --brand-light: #2563EB;
            --brand-bg: #F8FAFC;
            --border-color: #E2E8F0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--brand-bg);
            color: #1e293b;
            overflow-x: hidden;
        }
        .code-matrix {
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
        }
        .drawer-mask {
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }
        .drawer-body {
            transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .soft-card-shadow {
            box-shadow: 0 10px 25px -5px rgba(30, 64, 175, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.03);
        }
        .hover-card-lift {
            transition: all 0.25s ease;
        }
        .hover-card-lift:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 30px -6px rgba(30, 64, 175, 0.08), 0 10px 12px -5px rgba(15, 23, 42, 0.04);
        }