/* roulang page: index */
@layer base {
            :root {
                --color-sand: #FAF8F4;
                --color-mist: #F1EEE8;
                --color-smoke: #E3DED4;
                --color-forest: #23402F;
                --color-ink: #1C1917;
                --color-brass: #B08D4F;
                --color-moss: #4C6B55;
            }
            * {
                box-sizing: border-box;
            }
            html {
                scroll-behavior: smooth;
            }
            body {
                background-color: var(--color-sand);
                color: #2A2723;
                font-family: -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
                line-height: 1.6;
            }
            img {
                max-width: 100%;
                display: block;
            }
            a {
                color: inherit;
                text-decoration: none;
            }
            ul, ol {
                padding-left: 0;
            }
            @media (prefers-reduced-motion: reduce) {
                * {
                    animation-duration: 0.01ms !important;
                    animation-iteration-count: 1 !important;
                    transition-duration: 0.01ms !important;
                    scroll-behavior: auto !important;
                }
            }
        }

        @layer components {
            .container-custom {
                max-width: 80rem;
                margin-left: auto;
                margin-right: auto;
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
            @media (min-width: 1024px) {
                .container-custom {
                    padding-left: 2rem;
                    padding-right: 2rem;
                }
            }

            .btn-primary {
                display: inline-flex;
                align-items: center;
                gap: 0.5rem;
                background-color: var(--color-forest);
                color: var(--color-sand);
                border-radius: 2px;
                padding: 0.75rem 1.5rem;
                font-size: 0.875rem;
                font-weight: 500;
                transition: all 0.2s ease;
            }
            .btn-primary:hover {
                background-color: var(--color-ink);
            }
            .btn-primary svg {
                transition: transform 0.2s ease;
            }
            .btn-primary:hover svg {
                transform: translateX(4px);
            }

            .btn-outline {
                display: inline-flex;
                align-items: center;
                gap: 0.5rem;
                border: 1px solid rgba(250, 248, 244, 0.5);
                color: var(--color-sand);
                border-radius: 2px;
                padding: 0.75rem 1.5rem;
                font-size: 0.875rem;
                font-weight: 500;
                transition: all 0.2s ease;
            }
            .btn-outline:hover {
                background-color: var(--color-sand);
                color: var(--color-ink);
                border-color: var(--color-sand);
            }

            .btn-ghost {
                display: inline-flex;
                align-items: center;
                gap: 0.5rem;
                border: 1px solid var(--color-forest);
                color: var(--color-forest);
                border-radius: 2px;
                padding: 0.75rem 1.5rem;
                font-size: 0.875rem;
                font-weight: 500;
                transition: all 0.2s ease;
            }
            .btn-ghost:hover {
                background-color: var(--color-forest);
                color: var(--color-sand);
            }

            .pill-nav {
                display: inline-flex;
                align-items: center;
                white-space: nowrap;
                border-radius: 9999px;
                padding: 0.5rem 1.25rem;
                font-size: 0.875rem;
                border: 1px solid var(--color-smoke);
                background-color: #FFFFFF;
                color: rgba(28, 25, 23, 0.6);
                transition: all 0.2s ease;
            }
            .pill-nav:hover {
                border-color: var(--color-brass);
                color: var(--color-ink);
            }
            .pill-nav.active {
                background-color: var(--color-forest);
                color: var(--color-sand);
                border-color: transparent;
                box-shadow: 0 1px 3px rgba(0,0,0,0.1);
            }

            .section-eyebrow {
                display: inline-block;
                font-size: 0.75rem;
                letter-spacing: 0.1em;
                color: var(--color-brass);
                font-weight: 500;
                margin-bottom: 1rem;
            }

            .section-title {
                font-family: Georgia, "Noto Serif SC", "Songti SC", serif;
                font-weight: 600;
                font-size: 1.875rem;
                line-height: 1.2;
                color: var(--color-ink);
                letter-spacing: -0.01em;
            }
            @media (min-width: 768px) {
                .section-title {
                    font-size: 2.25rem;
                }
            }

            .link-underline {
                position: relative;
            }
            .link-underline::after {
                content: '';
                position: absolute;
                bottom: -2px;
                left: 0;
                height: 2px;
                width: 100%;
                background-color: var(--color-brass);
                transform: scaleX(0);
                transform-origin: right;
                transition: transform 0.2s ease;
            }
            .link-underline:hover::after {
                transform: scaleX(1);
                transform-origin: left;
            }

            .news-card {
                background: #FFFFFF;
                border: 1px solid var(--color-smoke);
                border-radius: 4px;
                overflow: hidden;
                transition: all 0.3s ease;
            }
            .news-card:hover {
                border-color: var(--color-brass);
                box-shadow: 0 12px 30px -12px rgba(28, 25, 23, 0.15);
                transform: translateY(-2px);
            }
            .news-card:hover .news-card-image img {
                transform: scale(1.03);
            }
            .news-card-image {
                overflow: hidden;
            }
            .news-card-image img {
                transition: transform 0.5s ease;
            }

            .faq-item {
                border-bottom: 1px solid var(--color-smoke);
            }
            .faq-question {
                display: flex;
                align-items: center;
                gap: 1rem;
                padding: 1.5rem 0;
                cursor: pointer;
            }
            .faq-question .icon {
                transition: transform 0.3s ease;
                margin-left: auto;
            }
            .faq-item.active .faq-question .icon {
                transform: rotate(45deg);
            }
            .faq-answer {
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease;
                padding-left: 3.5rem;
                padding-right: 1rem;
            }
            .faq-item.active .faq-answer {
                max-height: 300px;
                padding-bottom: 1.5rem;
            }

            .reveal {
                opacity: 0;
                transform: translateY(16px);
                transition: opacity 0.5s ease-out, transform 0.5s ease-out;
            }
            .reveal.revealed {
                opacity: 1;
                transform: none;
            }

            .input-line {
                background: transparent;
                border: none;
                border-bottom: 1px solid rgba(250, 248, 244, 0.4);
                color: var(--color-sand);
                padding: 0.75rem 0.25rem;
                font-size: 0.875rem;
                width: 100%;
                outline: none;
                transition: border-color 0.2s ease;
            }
            .input-line::placeholder {
                color: rgba(250, 248, 244, 0.4);
            }
            .input-line:focus {
                border-bottom-color: var(--color-brass);
            }

            .focus-visible:focus-visible {
                outline: 2px solid var(--color-brass);
                outline-offset: 2px;
            }
        }

/* roulang page: article */
:root {
            --color-sand: #FAF8F4;
            --color-mist: #F1EEE8;
            --color-smoke: #E3DED4;
            --color-forest: #23402F;
            --color-ink: #1C1917;
            --color-brass: #B08D4F;
            --color-moss: #4C6B55;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--color-sand);
            color: #2A2723;
            font-family: -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            line-height: 1.6;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        .container-custom {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background-color: var(--color-forest);
            color: var(--color-sand);
            border-radius: 2px;
            padding: 0.75rem 1.5rem;
            font-size: 0.875rem;
            font-weight: 500;
            transition: all 0.2s ease;
        }
        .btn-primary:hover {
            background-color: var(--color-ink);
        }
        .btn-primary svg {
            transition: transform 0.2s ease;
        }
        .btn-primary:hover svg {
            transform: translateX(4px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            border: 1px solid rgba(250, 248, 244, 0.5);
            color: var(--color-sand);
            border-radius: 2px;
            padding: 0.75rem 1.5rem;
            font-size: 0.875rem;
            font-weight: 500;
            transition: all 0.2s ease;
        }
        .btn-outline:hover {
            background-color: var(--color-sand);
            color: var(--color-ink);
            border-color: var(--color-sand);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            border: 1px solid var(--color-forest);
            color: var(--color-forest);
            border-radius: 2px;
            padding: 0.75rem 1.5rem;
            font-size: 0.875rem;
            font-weight: 500;
            transition: all 0.2s ease;
        }
        .btn-ghost:hover {
            background-color: var(--color-forest);
            color: var(--color-sand);
        }
        .pill-nav {
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
            border-radius: 9999px;
            padding: 0.5rem 1.25rem;
            font-size: 0.875rem;
            border: 1px solid var(--color-smoke);
            background-color: #FFFFFF;
            color: rgba(28, 25, 23, 0.6);
            transition: all 0.2s ease;
        }
        .pill-nav:hover {
            border-color: var(--color-brass);
            color: var(--color-ink);
        }
        .pill-nav.active {
            background-color: var(--color-forest);
            color: var(--color-sand);
            border-color: transparent;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
        }
        .section-eyebrow {
            display: inline-block;
            font-size: 0.75rem;
            letter-spacing: 0.1em;
            color: var(--color-brass);
            font-weight: 500;
            margin-bottom: 1rem;
        }
        .section-title {
            font-family: Georgia, "Noto Serif SC", "Songti SC", serif;
            font-weight: 600;
            font-size: 1.875rem;
            line-height: 1.2;
            color: var(--color-ink);
            letter-spacing: -0.01em;
        }
        .news-card {
            background: #FFFFFF;
            border: 1px solid var(--color-smoke);
            border-radius: 4px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .news-card:hover {
            border-color: var(--color-brass);
            box-shadow: 0 12px 30px -12px rgba(28, 25, 23, 0.15);
            transform: translateY(-2px);
        }
        .news-card:hover .news-card-image img {
            transform: scale(1.03);
        }
        .news-card-image {
            overflow: hidden;
        }
        .news-card-image img {
            transition: transform 0.5s ease;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-smoke);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1.5rem 0;
            cursor: pointer;
        }
        .faq-question .icon {
            transition: transform 0.3s ease;
            margin-left: auto;
        }
        .faq-item.active .faq-question .icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding-left: 3.5rem;
            padding-right: 1rem;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 1.5rem;
        }
        .input-line {
            background: transparent;
            border: none;
            border-bottom: 1px solid rgba(250, 248, 244, 0.4);
            color: var(--color-sand);
            padding: 0.75rem 0.25rem;
            font-size: 0.875rem;
            width: 100%;
            outline: none;
            transition: border-color 0.2s ease;
        }
        .input-line::placeholder {
            color: rgba(250, 248, 244, 0.4);
        }
        .input-line:focus {
            border-bottom-color: var(--color-brass);
        }
        .article-body h2 {
            font-family: Georgia, "Noto Serif SC", "Songti SC", serif;
            font-size: 1.5rem;
            font-weight: 600;
            margin-top: 3.5rem;
            margin-bottom: 1rem;
            color: var(--color-ink);
            line-height: 1.3;
        }
        .article-body h3 {
            font-family: Georgia, "Noto Serif SC", "Songti SC", serif;
            font-size: 1.25rem;
            font-weight: 600;
            margin-top: 2.5rem;
            margin-bottom: 0.75rem;
            color: var(--color-ink);
            line-height: 1.35;
        }
        .article-body p {
            margin-bottom: 1.5rem;
        }
        .article-body blockquote {
            border-left: 4px solid var(--color-brass);
            background-color: var(--color-mist);
            padding: 1.5rem 2rem;
            font-style: italic;
            margin: 2rem 0;
        }
        .article-body blockquote p {
            margin-bottom: 0;
        }
        .article-body img {
            border-radius: 4px;
        }
        .article-body ul {
            list-style: disc;
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .article-body ol {
            list-style: decimal;
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .article-body li {
            margin-bottom: 0.5rem;
        }
        .article-body a {
            color: var(--color-forest);
            border-bottom: 1px solid var(--color-brass);
            transition: all 0.2s ease;
        }
        .article-body a:hover {
            border-bottom-width: 2px;
            color: var(--color-brass);
        }
        .sidebar-card {
            background: #FFFFFF;
            border: 1px solid var(--color-smoke);
            border-radius: 4px;
            padding: 1.5rem;
        }
        .reveal {
            opacity: 0;
            transform: translateY(16px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }
        .reveal.revealed {
            opacity: 1;
            transform: none;
        }
        .hide-scrollbar {
            scrollbar-width: none;
        }
        .hide-scrollbar::-webkit-scrollbar {
            display: none;
        }
        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }
        @media (min-width: 768px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
            .section-title {
                font-size: 2.25rem;
            }
        }
        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }