/* roulang page: index */
:root {
            --brand: #0A332C;
            --brand-light: #145148;
            --gold: #C2A05E;
            --gold-light: #D4B47A;
            --bg: #F5F1E8;
            --card: #ffffff;
            --border: #E3DDCF;
            --text: #14221D;
            --text-weak: #5F6E67;
            --dark: #08241F;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --shadow: 0 1px 2px rgba(8, 36, 31, 0.04), 0 16px 40px rgba(8, 36, 31, 0.08);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            font-family: inherit;
            border: none;
            cursor: pointer;
            background: none;
        }

        .wrap {
            max-width: 1260px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 16px;
            padding-right: 16px;
        }

        @media (min-width: 768px) {
            .wrap {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        /* header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            height: 72px;
            background: rgba(245, 241, 232, .97);
            border-bottom: 1px solid rgba(227, 221, 207, .7);
        }

        .header-flex {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .brand {
            display: flex;
            align-items: baseline;
            gap: 8px;
            flex-shrink: 0;
            line-height: 1.2;
        }

        .brand-main {
            font-size: 26px;
            font-weight: 800;
            color: var(--brand);
            letter-spacing: .5px;
        }

        .brand-sub {
            font-size: 16px;
            font-weight: 600;
            color: var(--gold);
            letter-spacing: 2px;
            padding-left: 8px;
            border-left: 2px solid var(--gold);
        }

        @media (max-width: 480px) {
            .brand-main {
                font-size: 22px;
            }
            .brand-sub {
                font-size: 14px;
                padding-left: 6px;
            }
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 30px;
        }

        .nav-link {
            position: relative;
            font-size: 16px;
            font-weight: 500;
            padding: 30px 2px 28px;
            color: var(--text);
            white-space: nowrap;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 3px;
            background: var(--gold);
            border-radius: 3px 3px 0 0;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform .2s ease;
        }

        .nav-link:hover {
            color: var(--brand);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            transform: scaleX(1);
        }

        .nav-link.active {
            font-weight: 700;
            color: var(--brand);
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 700;
            line-height: 1;
            padding: 14px 24px;
            border-radius: 10px;
            transition: all .2s ease;
            min-height: 44px;
        }

        .btn-gold {
            background: var(--gold);
            color: #14221D;
            box-shadow: 0 1px 2px rgba(8, 36, 31, .12), 0 8px 20px rgba(194, 160, 94, .28);
        }

        .btn-gold:hover {
            background: var(--gold-light);
            color: #14221D;
            box-shadow: 0 14px 28px rgba(194, 160, 94, .30);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--brand-light);
            color: var(--brand);
            box-shadow: none;
        }

        .btn-outline:hover {
            background: var(--brand);
            border-color: var(--brand);
            color: #fff;
        }

        .btn-dark {
            background: var(--dark);
            color: #fff;
        }

        .btn-dark:hover {
            background: var(--brand-light);
            color: #fff;
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            color: var(--brand);
            background: transparent;
            border-radius: 8px;
        }

        .hamburger:hover {
            background: rgba(10, 51, 44, .06);
        }

        .hamburger span {
            width: 20px;
            height: 2px;
            background: var(--brand);
            display: block;
            margin: 2px 0;
            border-radius: 4px;
            transition: all .25s ease;
        }

        .mobile-nav {
            display: none;
        }

        @media (max-width: 1024px) {
            .nav-menu {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .hamburger {
                display: flex;
                flex-direction: column;
            }
            .mobile-nav.open {
                display: block;
            }
            .mobile-nav {
                background: #08241F;
                padding: 20px 24px 28px;
                border-radius: 0 0 18px 18px;
            }
            .mobile-nav .mobile-nav-link {
                display: block;
                padding: 14px 6px;
                color: #F5F1E8;
                font-size: 17px;
                font-weight: 600;
                border-bottom: 1px solid rgba(245, 241, 232, .12);
            }
            .mobile-nav .mobile-nav-link:hover,
            .mobile-nav .mobile-nav-link.active {
                color: #D4B47A;
            }
            .mobile-nav .mobile-nav-cta {
                margin-top: 24px;
                display: inline-flex;
            }
        }

        /* section spacing */
        .section {
            padding-top: 72px;
            padding-bottom: 72px;
        }

        @media (min-width: 768px) {
            .section {
                padding-top: 110px;
                padding-bottom: 110px;
            }
        }

        .section-head {
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--gold);
            background: rgba(194, 160, 94, .14);
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 30px;
            line-height: 1.3;
            font-weight: 800;
            color: var(--brand);
            margin: 0;
            letter-spacing: .5px;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 34px;
            }
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-weak);
            margin-top: 12px;
            max-width: 620px;
        }

        .card {
            background: #ffffff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow);
        }

        .empty-card {
            background: #ffffff;
            border: 2px dashed #d6d0c2;
            border-radius: var(--radius-md);
            max-width: 1200px;
        }

        .footnote {
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
        }
        /* misc */
        .hero-pic-frame {
            position: relative;
            border-radius: 4px;
        }
        .hero-pic-frame::before {
            content: "";
            position: absolute;
            top: -10px;
            right: -10px;
            width: 52%;
            height: 52%;
            border-top: 2px solid var(--gold);
            border-right: 2px solid var(--gold);
            z-index: 0;
            pointer-events: none;
        }

        .hero-pic-frame img {
            position: relative;
            z-index: 1;
            border-radius: 4px;
        }

        /* gallery scroll */
        .scroll-snap {
            display: flex;
            gap: 22px;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: #C2A05E #EDE8DC;
            padding-bottom: 14px;
        }
        .scroll-snap::-webkit-scrollbar {
            height: 6px;
        }
        .scroll-snap::-webkit-scrollbar-track {
            background: #EDE8DC;
            border-radius: 8px;
        }
        .scroll-snap::-webkit-scrollbar-thumb {
            background: #C2A05E;
            border-radius: 8px;
        }

        .shot-card {
            flex: 0 0 350px;
            background: #fff;
            border: 1px solid #E3DDCF;
            border-top: 3px solid var(--gold);
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 1px 2px rgba(8, 36, 31, .04), 0 12px 28px rgba(8, 36, 31, .06);
        }

        @media (max-width: 520px) {
            .shot-card {
                flex: 0 0 280px;
            }
        }

        /* requirements */
        .spec-row {
            display: grid;
            grid-template-columns: 1fr;
            border-bottom: 1px solid var(--border);
            padding: 22px 2px;
            gap: 4px;
        }
        @media (min-width: 768px) {
            .spec-row {
                grid-template-columns: 240px 1fr 1.2fr;
                align-items: center;
                gap: 24px;
            }
        }

        .spec-row:last-child {
            border-bottom: none;
        }

        .spec-label {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand);
        }

        .spec-value {
            color: var(--text);
            font-size: 15px;
        }

        .spec-note {
            color: var(--text-weak);
            font-size: 14px;
        }

        /* testimonial grid */
        .testimonial-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 26px;
            box-shadow: 0 1px 2px rgba(8, 36, 31, .03);
            transition: all .2s ease;
            height: 100%;
        }

        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: #D4C6A2;
        }

        .star {
            color: #C2A05E;
            font-size: 16px;
            letter-spacing: 2px;
        }

        .testimonial-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
            color: var(--text-weak);
            font-size: 13px;
        }

        .quote {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text);
            margin: 0;
        }

        /* news list */
        .news-feature {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0;
            overflow: hidden;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 18px;
            box-shadow: var(--shadow);
            transition: all .25s ease;
        }
        @media (min-width: 640px) {
            .news-feature {
                grid-template-columns: 6fr 5fr;
            }
        }

        .news-feature:hover {
            box-shadow: 0 2px 4px rgba(8, 36, 31, .06), 0 24px 48px rgba(8, 36, 31, .12);
            transform: translateY(-2px);
        }

        .news-text-block {
            padding: 34px 30px;
        }

        .news-figure {
            min-height: 220px;
            background-color: #EDE8DC;
        }

        .news-figure img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-list-split {
            display: flex;
            flex-direction: column;
            gap: 0;
            margin-top: 24px;
        }

        .news-list-item {
            display: grid;
            grid-template-columns: 1fr;
            gap: 8px;
            padding: 20px 2px;
            border-bottom: 1px solid var(--border);
            align-items: baseline;
        }
        @media (min-width: 768px) {
            .news-list-item {
                grid-template-columns: 150px 1fr auto;
                gap: 24px;
                align-items: center;
                padding: 16px 2px;
            }
        }
        .news-list-item:last-child {
            border-bottom: none;
        }

        .news-item-date {
            font-size: 14px;
            color: var(--text-weak);
        }

        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            background: #F1EBDD;
            color: #8A6D32;
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .badge-gold {
            background: #F5EDDD;
            color: #9C7E3E;
        }

        .clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .clamp-1 {
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* CTA download */
        .download-panel {
            background: linear-gradient(120deg, #08241F, #0A332C 60%, #145148);
            border-radius: 24px;
            position: relative;
            overflow: hidden;
        }

        .download-panel::after {
            content: "";
            background: url('/assets/images/backpic/back-1.webp') no-repeat center / cover;
            position: absolute;
            inset: 0;
            opacity: .16;
            z-index: 0;
        }

        .download-panel>* {
            position: relative;
            z-index: 1;
        }

        .btn-mobile {
            min-width: 180px;
        }

        @media (max-width: 640px) {
            .btn-mobile {
                width: 100%;
            }
        }

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 24px 4px;
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            text-align: left;
            line-height: 1.5;
        }

        .faq-question:hover {
            color: var(--brand);
        }

        .faq-icon {
            flex: 0 0 28px;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #F1EBDD;
            color: var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 400;
            transition: all .2s ease;
        }

        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
            background: var(--gold);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .2s ease;
        }

        .faq-answer-inner {
            padding: 0 44px 24px 4px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-weak);
        }

        /* footer */
        .site-footer {
            background: var(--dark);
            color: #C9D2CC;
        }

        .footer-wrap {
            max-width: 1260px;
            margin: 0 auto;
            padding: 56px 16px 32px;
        }

        @media (min-width: 768px) {
            .footer-wrap {
                padding: 72px 24px 40px;
            }
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            margin-bottom: 44px;
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
                gap: 50px;
            }
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 16px;
            color: #F5F1E8;
            letter-spacing: 1px;
        }

        .footer-link {
            display: block;
            padding: 5px 0;
            font-size: 15px;
            color: #A9B6B0;
        }

        .footer-link:hover {
            color: #D4B47A;
        }

        .footer-copyright {
            border-top: 1px solid rgba(245, 241, 232, .15);
            padding-top: 22px;
            font-size: 14px;
            color: #82908A;
        }

        .cta-panel {
            background: linear-gradient(110deg, #08241F 20%, #0A332C 70%, #145148);
            border-radius: 24px;
            overflow: hidden;
            position: relative;
        }

        .cta-panel::after {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') no-repeat right center / cover;
            opacity: .22;
            z-index: 0;
        }

        .cta-panel>* {
            position: relative;
            z-index: 1;
        }

        :focus-visible {
            outline: 3px solid #C2A05E;
            outline-offset: 2px;
            border-radius: 4px;
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                transition: none !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category1 */
:root {
            --pine: #0A332C;
            --pine-light: #145148;
            --pine-dark: #08241F;
            --brass: #C2A05E;
            --brass-light: #D6B878;
            --paper: #F5F1E8;
            --ink: #14221D;
            --muted: #5F6E67;
            --line: #E3DDCF;
            --card: #FFFFFF;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--paper);
            color: var(--ink);
            line-height: 1.7;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        img {
            max-width: 100%;
            display: block;
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

        :focus-visible {
            outline: 2px solid var(--brass);
            outline-offset: 3px;
        }

        .container {
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
            width: 100%;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(245, 241, 232, 0.94);
            border-bottom: 1px solid rgba(194, 160, 94, 0.36);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 16px;
        }

        .brand {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            line-height: 1.15;
            flex-shrink: 0;
        }

        .brand-main {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--pine);
        }

        .brand-sub {
            font-size: 12px;
            letter-spacing: 3px;
            font-weight: 500;
            color: var(--brass);
            padding-top: 2px;
            border-top: 1px solid var(--brass);
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 34px;
            margin-left: auto;
        }

        .nav-link {
            font-size: 16px;
            font-weight: 500;
            color: #24332D;
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color 0.2s ease;
        }

        .nav-link:hover {
            color: var(--pine-light);
        }

        .nav-link.active {
            font-weight: 700;
            color: var(--pine);
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -3px;
            height: 3px;
            border-radius: 4px;
            background: var(--brass);
        }

        .nav-cta {
            margin-left: 6px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brass);
            color: #10231E;
            font-size: 15px;
            font-weight: 700;
            padding: 11px 22px;
            border-radius: 8px;
            border: 1px solid transparent;
            box-shadow: 0 6px 18px rgba(194, 160, 94, 0.28);
            transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }

        .btn-primary:hover {
            background: var(--brass-light);
            box-shadow: 0 8px 22px rgba(194, 160, 94, 0.36);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid rgba(245, 241, 232, 0.72);
            color: #F5F1E8;
            font-size: 15px;
            font-weight: 600;
            padding: 11px 22px;
            border-radius: 8px;
            transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
        }

        .btn-outline-light:hover {
            background: rgba(245, 241, 232, 0.14);
            border-color: #F5F1E8;
            color: #FFFFFF;
        }

        .nav-toggle {
            display: none;
            position: relative;
            z-index: 70;
            background: transparent;
            border: 0;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            margin-left: 4px;
        }

        .nav-toggle .icon-open,
        .nav-toggle .icon-close {
            width: 26px;
            height: 20px;
            position: relative;
        }

        .nav-toggle span {
            position: absolute;
            left: 0;
            width: 100%;
            height: 3px;
            border-radius: 4px;
            background: var(--pine);
            transition: transform 0.24s ease, opacity 0.24s ease, top 0.24s ease;
        }

        .nav-toggle span:nth-child(1) {
            top: 0;
        }

        .nav-toggle span:nth-child(2) {
            top: 8px;
        }

        .nav-toggle span:nth-child(3) {
            top: 16px;
        }

        .nav-toggle .icon-close {
            display: none;
        }

        body.nav-open .nav-toggle .icon-open {
            display: none;
        }

        body.nav-open .nav-toggle .icon-close {
            display: block;
        }

        body.nav-open .nav-toggle span:nth-child(1) {
            top: 8px;
            transform: rotate(45deg);
            background: #F5F1E8;
        }

        body.nav-open .nav-toggle span:nth-child(2) {
            opacity: 0;
        }

        body.nav-open .nav-toggle span:nth-child(3) {
            top: 8px;
            transform: rotate(-45deg);
            background: #F5F1E8;
        }

        .page-banner {
            position: relative;
            padding: 74px 0 84px;
            background:
                linear-gradient(100deg, rgba(8, 36, 31, 0.94) 12%, rgba(10, 51, 44, 0.86) 56%, rgba(10, 51, 44, 0.68) 100%),
                url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            color: #F5F1E8;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(245, 241, 232, 0.72);
            margin-bottom: 22px;
        }

        .breadcrumb a {
            color: rgba(245, 241, 232, 0.92);
            transition: color 0.2s ease;
        }

        .breadcrumb a:hover {
            color: var(--brass-light);
        }

        .breadcrumb-sep {
            color: rgba(245, 241, 232, 0.46);
        }

        .badge-light {
            display: inline-flex;
            align-items: center;
            background: rgba(194, 160, 94, 0.16);
            border: 1px solid rgba(194, 160, 94, 0.6);
            color: #E3CE9D;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 5px;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }

        .banner-title {
            font-size: clamp(30px, 5vw, 48px);
            line-height: 1.22;
            font-weight: 800;
            letter-spacing: 0.4px;
            margin: 0 0 18px;
            max-width: 760px;
        }

        .banner-title span {
            color: var(--brass-light);
        }

        .banner-desc {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(245, 241, 232, 0.84);
            max-width: 720px;
            margin: 0 0 26px;
        }

        .banner-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .site-section {
            padding: 72px 0;
        }

        .section-head {
            margin-bottom: 44px;
            max-width: 780px;
        }

        .section-overline {
            display: inline-block;
            font-size: 13px;
            letter-spacing: 2px;
            font-weight: 700;
            color: var(--brass);
            text-transform: uppercase;
            margin-bottom: 10px;
            border-left: 3px solid var(--brass);
            padding-left: 12px;
        }

        .section-head h2 {
            font-size: clamp(24px, 3.4vw, 34px);
            line-height: 1.3;
            font-weight: 800;
            color: var(--ink);
            margin: 4px 0 12px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.85;
            margin: 0;
        }

        .step-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 22px;
            counter-reset: step;
        }

        .step-item {
            background: #FFFFFF;
            border: 1px solid var(--line);
            border-radius: 18px;
            padding: 28px 26px;
            position: relative;
            min-height: 180px;
            transition: box-shadow 0.25s ease, transform 0.25s ease;
        }

        .step-item:hover {
            box-shadow: 0 1px 2px rgba(8, 36, 31, 0.04), 0 18px 44px rgba(8, 36, 31, 0.08);
            transform: translateY(-3px);
        }

        .step-item::before {
            counter-increment: step;
            content: counter(step, decimal-leading-zero);
            display: block;
            font-size: 42px;
            font-weight: 800;
            line-height: 1;
            color: var(--brass);
            margin-bottom: 18px;
            font-variant-numeric: tabular-nums;
        }

        .step-item h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--ink);
        }

        .step-item p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--muted);
            margin: 0;
        }

        @media (min-width: 768px) {
            .step-list {
                grid-template-columns: repeat(2, 1fr);
            }

            .step-item {
                min-height: 200px;
            }
        }

        @media (min-width: 1180px) {
            .step-list {
                grid-template-columns: repeat(4, 1fr);
            }

            .step-item {
                min-height: 224px;
            }
        }

        .soft-section {
            background: rgba(255, 255, 255, 0.5);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .entry-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }

        .entry-main-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: 22px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
            transition: box-shadow 0.25s ease;
        }

        .entry-main-card:hover {
            box-shadow: 0 1px 2px rgba(8, 36, 31, 0.05), 0 20px 48px rgba(8, 36, 31, 0.08);
        }

        .entry-main-card img {
            width: 100%;
            height: 210px;
            object-fit: cover;
        }

        .entry-main-body {
            padding: 30px 34px 34px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .entry-tag {
            display: inline-flex;
            align-self: flex-start;
            font-size: 13px;
            font-weight: 600;
            color: var(--pine);
            background: rgba(20, 81, 72, 0.08);
            border-radius: 6px;
            padding: 4px 10px;
            margin-bottom: 14px;
        }

        .entry-main-body h3 {
            font-size: clamp(20px, 2.2vw, 25px);
            font-weight: 700;
            margin: 0 0 14px;
            color: var(--ink);
        }

        .entry-main-body p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--muted);
            margin: 0 0 20px;
        }

        .entry-note-list {
            list-style: none;
            padding: 0;
            margin: auto 0 0;
            display: grid;
            gap: 12px;
        }

        .entry-note-list li {
            position: relative;
            padding-left: 28px;
            font-size: 14px;
            color: #33433D;
            line-height: 1.7;
        }

        .entry-note-list li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 7px;
            width: 14px;
            height: 14px;
            background: var(--brass);
            border-radius: 50%;
            box-shadow: inset 0 0 0 3px #F1E7D6;
        }

        .side-entry-stack {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }

        .side-entry-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: 20px;
            padding: 28px;
            min-height: 210px;
            display: flex;
            flex-direction: column;
            transition: box-shadow 0.25s ease;
        }

        .side-entry-card:hover {
            box-shadow: 0 1px 2px rgba(8, 36, 31, 0.04), 0 16px 38px rgba(8, 36, 31, 0.08);
        }

        .side-entry-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 12px;
        }

        .side-entry-card p {
            font-size: 14px;
            line-height: 1.85;
            color: var(--muted);
            margin: 0 0 18px;
        }

        .side-entry-link {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 700;
            color: var(--pine);
            transition: color 0.2s ease;
        }

        .side-entry-link:hover {
            color: var(--brass);
        }

        @media (min-width: 992px) {
            .entry-grid {
                grid-template-columns: 7fr 5fr;
                align-items: stretch;
            }
        }

        .compat-block {
            background: #FFFFFF;
            border: 1px solid var(--line);
            border-radius: 22px;
            overflow: hidden;
        }

        .compat-table {
            width: 100%;
            border-collapse: collapse;
        }

        .compat-table th,
        .compat-table td {
            text-align: left;
            padding: 19px 22px;
            font-size: 15px;
            line-height: 1.7;
        }

        .compat-table thead th {
            background: #0F4037;
            color: #F5F1E8;
            font-weight: 600;
            letter-spacing: 0.4px;
            white-space: nowrap;
        }

        .compat-table tbody td {
            border-bottom: 1px solid rgba(227, 221, 207, 0.9);
            vertical-align: top;
            color: #26362F;
        }

        .compat-table tbody td:first-child {
            font-weight: 700;
            color: var(--pine);
            white-space: nowrap;
        }

        .compat-table tbody tr:last-child td {
            border-bottom: 0;
        }

        .compat-table tbody tr:hover td {
            background: rgba(245, 241, 232, 0.52);
        }

        @media (max-width: 760px) {
            .compat-block {
                overflow-x: auto;
            }

            .compat-table {
                min-width: 620px;
            }

            .compat-table th,
            .compat-table td {
                padding: 14px 14px;
                font-size: 14px;
            }
        }

        .check-block {
            display: grid;
            gap: 14px;
        }

        .check-row {
            display: grid;
            grid-template-columns: 1fr;
            gap: 8px 28px;
            background: #FFFFFF;
            border: 1px solid var(--line);
            border-radius: 18px;
            padding: 25px 26px;
            transition: box-shadow 0.2s ease;
        }

        .check-row:hover {
            box-shadow: 0 1px 2px rgba(8, 36, 31, 0.04), 0 12px 32px rgba(8, 36, 31, 0.06);
        }

        .check-number {
            font-size: 15px;
            font-weight: 800;
            color: var(--brass);
            font-variant-numeric: tabular-nums;
            letter-spacing: 1px;
        }

        .check-row h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 8px;
        }

        .check-row p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.85;
            margin: 0;
        }

        @media (min-width: 768px) {
            .check-row {
                grid-template-columns: 60px 1fr;
                padding: 26px 32px;
            }

            .check-row p {
                grid-column: 2;
            }
        }

        .faq-wrap {
            max-width: 880px;
            display: grid;
            gap: 14px;
        }

        .faq-item {
            background: #FFFFFF;
            border: 1px solid var(--line);
            border-radius: 16px;
            overflow: hidden;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .faq-item[open] {
            border-color: rgba(194, 160, 94, 0.8);
            box-shadow: 0 1px 2px rgba(8, 36, 31, 0.03), 0 12px 32px rgba(8, 36, 31, 0.07);
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            padding: 20px 24px;
            transition: color 0.2s ease;
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            color: var(--pine);
        }

        .faq-icon {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: rgba(194, 160, 94, 0.15);
            color: var(--brass);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
            transition: transform 0.18s ease, background 0.18s ease;
        }

        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            background: var(--brass);
            color: #10231E;
        }

        .faq-answer {
            padding: 0 26px 24px;
            border-top: 1px dashed rgba(227, 221, 207, 0.8);
            margin-top: 2px;
        }

        .faq-answer p {
            margin: 16px 0 0;
            font-size: 15px;
            line-height: 1.9;
            color: var(--muted);
        }

        .cta-section {
            background: var(--pine-dark);
            color: #F5F1E8;
            padding: 96px 0;
            margin-top: 18px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 260px;
            height: 260px;
            background: rgba(194, 160, 94, 0.12);
            border-radius: 50%;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 760px;
        }

        .cta-inner .section-overline {
            color: var(--brass-light);
            border-color: var(--brass-light);
        }

        .cta-inner h2 {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            line-height: 1.3;
            margin: 6px 0 16px;
            color: #FFFFFF;
        }

        .cta-inner p {
            color: rgba(245, 241, 232, 0.8);
            font-size: 16px;
            line-height: 1.9;
            margin: 0 0 28px;
        }

        .site-footer {
            background: var(--pine-dark);
            color: rgba(245, 241, 232, 0.8);
            padding: 60px 0 0;
            border-top: 1px solid rgba(194, 160, 94, 0.18);
        }

        .footer-wrap {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            padding-bottom: 44px;
        }

        .footer-title {
            color: #F5F1E8;
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 1px;
            margin: 0 0 18px;
        }

        .footer-link {
            display: block;
            color: rgba(245, 241, 232, 0.65);
            font-size: 14px;
            line-height: 2;
            transition: color 0.2s ease;
        }

        .footer-link:hover {
            color: var(--brass-light);
        }

        .footer-copyright {
            border-top: 1px solid rgba(245, 241, 232, 0.1);
            padding: 22px 0;
            font-size: 13px;
            color: rgba(245, 241, 232, 0.5);
            flex-wrap: wrap;
            gap: 8px;
        }

        @media (min-width: 720px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.3fr 1fr 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                padding: 0 0;
            }

            .header-inner {
                height: 70px;
            }

            .site-nav {
                position: fixed;
                inset: 0 0 0 auto;
                width: min(82vw, 330px);
                background: #08241F;
                flex-direction: column;
                align-items: flex-start;
                justify-content: flex-start;
                gap: 8px;
                padding: 96px 28px 44px;
                margin-left: 0;
                transform: translateX(103%);
                transition: transform 0.26s ease;
                box-shadow: -10px 0 40px rgba(0, 0, 0, 0.18);
            }

            body.nav-open .site-nav {
                transform: translateX(0);
            }

            .site-nav a.nav-link {
                color: #EBE4D8;
                font-size: 19px;
                padding: 10px 0;
                width: 100%;
            }

            .site-nav .nav-link.active {
                color: var(--brass-light);
                font-weight: 700;
            }

            .site-nav .nav-link.active::after {
                display: none;
            }

            .nav-cta {
                margin-top: 30px;
                width: 100%;
            }

            .nav-cta .btn-primary {
                width: 100%;
            }

            .nav-toggle {
                display: flex;
            }

            .page-banner {
                padding: 52px 0 60px;
            }

            .site-section {
                padding: 56px 0;
            }
        }

        @media (max-width: 480px) {
            .brand-main {
                font-size: 19px;
            }

            .btn-primary,
            .btn-outline-light {
                width: 100%;
            }

            .banner-actions {
                flex-direction: column;
            }
        }

/* roulang page: article */
:root {
            --green-950: #08241F;
            --green-900: #0A332C;
            --green-700: #145148;
            --gold: #C2A05E;
            --gold-hover: #CDAF72;
            --paper: #F5F1E8;
            --paper-soft: #EEE8DC;
            --ink: #14221D;
            --muted: #5F6E67;
            --line: #E3DDCF;
            --white: #FFFFFF;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --shadow-card: 0 1px 2px rgba(8, 36, 31, 0.04), 0 16px 40px rgba(8, 36, 31, 0.06);
            --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--paper);
            color: var(--ink);
            font-family: var(--font);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        body,
        div,
        section,
        article,
        aside,
        nav,
        header,
        footer,
        main,
        figure,
        p,
        h1,
        h2,
        h3,
        h4,
        ul,
        ol,
        li,
        blockquote,
        pre {
            margin: 0;
            padding: 0;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        button,
        input,
        textarea,
        select {
            font: inherit;
            border: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .container-site {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container-site {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        :target {
            scroll-margin-top: 90px;
        }

        ::selection {
            background: rgba(194, 160, 94, 0.28);
            color: var(--green-900);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(245, 241, 232, 0.97);
            border-bottom: 1px solid var(--line);
        }

        .header-wrap {
            position: relative;
            display: flex;
            align-items: center;
            gap: 24px;
            min-height: 72px;
        }

        .brand {
            flex-shrink: 0;
            display: inline-flex;
            flex-direction: column;
            align-items: flex-start;
            line-height: 1.15;
            gap: 2px;
        }

        .brand-main {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--green-900);
        }

        .brand-sub {
            font-size: 12px;
            font-weight: 600;
            color: var(--gold);
            letter-spacing: 0.18em;
            padding-left: 2px;
            border-left: 2px solid var(--gold);
            padding-left: 6px;
        }

        .nav-menu {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink);
            border-radius: 8px;
            transition: color 0.2s ease, background 0.2s ease;
        }

        .nav-link:hover {
            color: var(--green-700);
            background: rgba(20, 81, 72, 0.06);
        }

        .nav-link.active {
            color: var(--green-900);
            font-weight: 700;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 5px;
            height: 2px;
            border-radius: 2px;
            background: var(--gold);
        }

        .header-cta {
            flex-shrink: 0;
            margin-left: auto;
        }

        .btn-gold {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 11px 22px;
            border-radius: 10px;
            background: var(--gold);
            color: var(--green-950);
            border: 1px solid rgba(0, 0, 0, 0.04);
            font-size: 15px;
            font-weight: 700;
            white-space: nowrap;
            transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            cursor: pointer;
        }

        .btn-gold:hover {
            background: var(--gold-hover);
            box-shadow: 0 8px 22px rgba(194, 160, 94, 0.22);
        }

        .btn-gold:focus-visible,
        .nav-link:focus-visible,
        .nav-toggle:focus-visible {
            outline: 3px solid rgba(194, 160, 94, 0.4);
            outline-offset: 2px;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--line);
            border-radius: 10px;
            background: var(--white);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            cursor: pointer;
        }

        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--green-900);
            border-radius: 2px;
            margin: 3px 0;
            transition: background 0.2s ease;
        }

        .nav-toggle:hover {
            border-color: var(--gold);
        }

        .crumb-wrap {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
        }

        .crumb-wrap a {
            color: var(--green-700);
            transition: color 0.2s ease;
        }

        .crumb-wrap a:hover {
            color: var(--gold);
        }

        .crumb-sep {
            color: #B7A98B;
        }

        .crumb-current {
            color: var(--ink);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 460px;
        }

        .article-cat {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(194, 160, 94, 0.14);
            border: 1px solid rgba(194, 160, 94, 0.35);
            color: #7A5C27;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }

        .article-title {
            font-size: clamp(30px, 4.6vw, 46px);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
            color: var(--green-950);
        }

        .detail-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px 22px;
            color: var(--muted);
            font-size: 14px;
            padding-top: 18px;
            border-top: 1px solid var(--line);
        }

        .detail-meta a {
            color: var(--green-700);
            font-weight: 500;
        }

        .detail-meta a:hover {
            color: var(--gold);
        }

        .detail-meta-divider {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: #C8BCA4;
        }

        .article-cover {
            border: 1px solid var(--line);
            border-radius: 20px;
            overflow: hidden;
            background: var(--white);
            box-shadow: var(--shadow-card);
        }

        .article-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 16 / 8;
        }

        .article-body {
            font-size: 17px;
            line-height: 1.85;
            color: #22332B;
            word-break: break-word;
        }

        .article-body p {
            margin: 0 0 1.6em;
        }

        .article-body h2 {
            font-size: 26px;
            line-height: 1.4;
            font-weight: 700;
            color: var(--green-950);
            margin: 1.8em 0 0.8em;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--line);
        }

        .article-body h3 {
            font-size: 21px;
            line-height: 1.45;
            font-weight: 700;
            color: var(--green-900);
            margin: 1.6em 0 0.7em;
        }

        .article-body h4 {
            font-size: 18px;
            line-height: 1.5;
            font-weight: 700;
            color: var(--green-900);
            margin: 1.4em 0 0.6em;
        }

        .article-body ul {
            margin: 0 0 1.7em;
            padding-left: 22px;
            list-style: disc;
        }

        .article-body ol {
            margin: 0 0 1.7em;
            padding-left: 22px;
            list-style: decimal;
        }

        .article-body li {
            margin-bottom: 0.45em;
        }

        .article-body a {
            color: var(--green-700);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-color: rgba(194, 160, 94, 0.7);
            transition: color 0.2s ease;
        }

        .article-body a:hover {
            color: var(--gold);
        }

        .article-body blockquote {
            border-left: 4px solid var(--gold);
            background: rgba(194, 160, 94, 0.1);
            padding: 16px 20px;
            margin: 0 0 1.7em;
            border-radius: 0 10px 10px 0;
            color: #3D4D46;
        }

        .article-body img {
            border-radius: 16px;
            margin: 32px 0;
            border: 1px solid var(--line);
        }

        .article-body pre {
            background: var(--green-950);
            color: #E9EFEB;
            padding: 20px;
            border-radius: 14px;
            overflow-x: auto;
            font-size: 14px;
            line-height: 1.7;
            margin: 0 0 1.7em;
        }

        .article-body code {
            font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
            background: #E9E3D5;
            color: #4A2F12;
            border-radius: 6px;
            padding: 2px 7px;
            font-size: 14px;
        }

        .article-body pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 0 0 1.9em;
            font-size: 15px;
        }

        .article-body th,
        .article-body td {
            border: 1px solid var(--line);
            padding: 12px 14px;
            text-align: left;
        }

        .article-body th {
            background: var(--paper-soft);
            color: var(--green-900);
            font-weight: 600;
        }

        .empty-content {
            border: 2px dashed #CFC5AF;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.65);
            padding: 64px 24px;
            text-align: center;
            color: var(--muted);
        }

        .empty-content .empty-title {
            font-size: 22px;
            font-weight: 600;
            color: var(--green-900);
            margin-bottom: 10px;
        }

        .empty-content .btn-gold {
            margin-top: 18px;
        }

        .post-foot-nav {
            border-top: 1px solid var(--line);
            margin-top: 44px;
            padding-top: 20px;
            display: grid;
            gap: 12px;
        }

        .post-foot-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            padding: 12px 14px;
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: 12px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .post-foot-item:hover {
            border-color: rgba(194, 160, 94, 0.6);
            box-shadow: 0 8px 24px rgba(8, 36, 31, 0.06);
        }

        .post-foot-label {
            flex-shrink: 0;
            font-size: 13px;
            font-weight: 700;
            color: var(--gold);
            background: rgba(194, 160, 94, 0.1);
            padding: 3px 10px;
            border-radius: 6px;
        }

        .post-foot-item a {
            color: var(--green-700);
            font-weight: 600;
            font-size: 15px;
        }

        .post-foot-item a:hover {
            color: var(--green-900);
            text-decoration: underline;
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 44px;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.14em;
            color: #8A6930;
            margin-bottom: 12px;
            padding: 5px 14px;
            border: 1px solid rgba(194, 160, 94, 0.35);
            background: rgba(194, 160, 94, 0.08);
            border-radius: 999px;
        }

        .section-title {
            font-size: clamp(26px, 3.2vw, 36px);
            font-weight: 800;
            color: var(--green-950);
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .section-desc {
            margin-top: 14px;
            font-size: 16px;
            color: var(--muted);
            line-height: 1.75;
        }

        .category-card {
            display: flex;
            flex-direction: column;
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: 18px;
            padding: 30px;
            box-shadow: 0 1px 2px rgba(8, 36, 31, 0.03);
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }

        .category-card:hover {
            border-color: rgba(194, 160, 94, 0.55);
            box-shadow: 0 18px 44px rgba(8, 36, 31, 0.08);
            transform: translateY(-3px);
        }

        .category-card .card-icon {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(194, 160, 94, 0.14);
            color: var(--gold);
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 18px;
        }

        .category-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--green-950);
            margin-bottom: 10px;
        }

        .category-card p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.75;
            flex: 1;
        }

        .card-arrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 22px;
            color: var(--green-700);
            font-weight: 600;
            font-size: 15px;
        }

        .card-arrow:hover {
            color: var(--gold);
        }

        .faq-section {
            background: var(--paper-soft);
        }

        .faq-list {
            max-width: 900px;
            margin: 0 auto;
            display: grid;
            gap: 14px;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: 14px;
            overflow: hidden;
            transition: border-color 0.2s ease;
        }

        .faq-item[open] {
            border-color: rgba(194, 160, 94, 0.55);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            list-style: none;
            font-weight: 600;
            color: var(--green-950);
            font-size: 16px;
            line-height: 1.5;
            transition: color 0.2s ease;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            color: var(--green-700);
        }

        .faq-icon {
            position: relative;
            flex-shrink: 0;
            width: 22px;
            height: 22px;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            background: var(--gold);
            border-radius: 2px;
            transition: transform 0.2s ease, opacity 0.2s ease;
        }

        .faq-icon::before {
            width: 14px;
            height: 2px;
            left: 4px;
            top: 10px;
        }

        .faq-icon::after {
            width: 2px;
            height: 14px;
            left: 10px;
            top: 4px;
        }

        .faq-item[open] .faq-icon::after {
            transform: rotate(90deg);
            opacity: 0;
        }

        .faq-content {
            padding: 0 22px 22px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px solid var(--line);
            padding-top: 14px;
        }

        .cta-deep {
            background: var(--green-950);
            color: var(--paper);
            border-top: 1px solid rgba(194, 160, 94, 0.25);
        }

        .cta-deep .cta-kicker {
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.12em;
            color: var(--gold);
            text-transform: uppercase;
        }

        .cta-deep h2 {
            font-size: clamp(28px, 3.8vw, 40px);
            font-weight: 800;
            color: #F5F1E8;
            line-height: 1.3;
            margin: 18px 0 16px;
        }

        .cta-deep p {
            color: #A9B6B0;
            max-width: 620px;
            margin: 0 auto;
            font-size: 16px;
        }

        .cta-deep .btn-gold {
            margin-top: 30px;
        }

        .site-footer {
            background: var(--green-950);
            color: #E9EFEB;
            padding: 64px 0 28px;
        }

        .footer-wrap {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        @media (min-width: 768px) {
            .footer-wrap {
                padding: 0 1.5rem;
            }
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 44px;
            padding-bottom: 42px;
            border-bottom: 1px solid rgba(194, 160, 94, 0.2);
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #F5F1E8;
            margin-bottom: 18px;
            letter-spacing: 0.04em;
        }

        .footer-link {
            display: block;
            font-size: 14px;
            color: #A9B6B0;
            padding: 6px 0;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .footer-link:hover {
            color: var(--gold);
            padding-left: 4px;
        }

        .footer-copyright {
            padding-top: 26px;
            font-size: 13px;
            color: #7E8E86;
        }

        @media (max-width: 991px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 767px) {
            .header-wrap {
                min-height: 66px;
            }

            .nav-menu {
                display: none;
                position: absolute;
                top: 66px;
                left: -20px;
                right: -20px;
                flex-direction: column;
                align-items: stretch;
                background: var(--green-900);
                padding: 18px 24px 24px;
                border-bottom: 1px solid rgba(194, 160, 94, 0.4);
                box-shadow: 0 18px 40px rgba(8, 36, 31, 0.18);
                gap: 4px;
            }

            .container-site .nav-menu {
                left: 0;
                right: 0;
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-link {
                color: #E9EFEB;
                justify-content: flex-start;
                padding: 12px 16px;
                border-radius: 10px;
            }

            .nav-link:hover {
                color: var(--gold);
                background: rgba(194, 160, 94, 0.12);
            }

            .nav-link.active {
                color: var(--gold);
                font-weight: 700;
            }

            .nav-link.active::after {
                display: none;
            }

            .header-cta {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
                margin-left: auto;
            }

            .container-site {
                padding-left: 20px;
                padding-right: 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 520px) {
            .brand-main {
                font-size: 19px;
            }

            .article-title {
                font-size: 28px;
            }

            .article-body {
                font-size: 16px;
            }

            .post-foot-item {
                align-items: flex-start;
                flex-direction: column;
                gap: 8px;
            }

            .section-head {
                margin-bottom: 32px;
            }
        }

/* roulang page: category2 */
:root {
            --brand-dark: #0A332C;
            --brand-mid: #145148;
            --brand-near-black: #08241F;
            --gold: #C2A05E;
            --gold-light: #D4B87E;
            --paper: #F5F1E8;
            --white: #FFFFFF;
            --ink: #14221D;
            --ink-soft: #5F6E67;
            --line: #E3DDCF;
            --radius-sm: 8px;
            --radius-card: 16px;
            --radius-large: 20px;
            --shadow-soft: 0 1px 2px rgba(8, 36, 31, 0.04), 0 16px 40px rgba(8, 36, 31, 0.08);
            --container-max: 1280px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--paper);
            color: var(--ink);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        /* Typography */
        h1, h2, h3, h4, h5, h6 {
            line-height: 1.25;
            font-weight: 700;
        }
        .display-hero {
            font-size: clamp(2.25rem, 5vw, 4.25rem);
            letter-spacing: -0.02em;
            font-weight: 800;
        }
        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            letter-spacing: -0.01em;
        }
        .card-title {
            font-size: 1.375rem;
        }
        .lead-text {
            font-size: 1.125rem;
            color: var(--ink-soft);
        }
        .small-label {
            font-size: 0.8125rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        /* Container */
        .container-x {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* Header / Nav */
        .site-header {
            background: rgba(245, 241, 232, 0.96);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(227, 221, 207, 0.8);
        }
        .nav-link {
            color: var(--ink);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 0.25rem;
            margin: 0 0.75rem;
            border-bottom: 2px solid transparent;
            transition: color 0.2s ease, border-color 0.2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--brand-mid);
            border-bottom-color: var(--gold);
        }
        .nav-link.active {
            font-weight: 700;
            color: var(--ink);
            border-bottom: 2px solid var(--gold);
        }
        .brand-main {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--brand-dark);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }
        .brand-sub {
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.2em;
            padding: 0.1rem 0.35rem;
            border-left: 3px solid var(--gold);
            color: var(--gold);
            line-height: 1.4;
        }
        .btn-gold {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gold);
            color: #14221D;
            font-weight: 700;
            padding: 0.65rem 1.5rem;
            border-radius: 6px;
            border: 1px solid var(--gold);
            transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
        }
        .btn-gold:hover {
            background: var(--gold-light);
            border-color: var(--gold-light);
            box-shadow: 0 8px 20px rgba(194, 160, 94, 0.25);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--brand-dark);
            font-weight: 600;
            padding: 0.65rem 1.5rem;
            border-radius: 6px;
            border: 1px solid rgba(10, 51, 44, 0.4);
            transition: background 0.2s, color 0.2s;
        }
        .btn-outline:hover {
            background: var(--brand-dark);
            color: #F5F1E8;
        }
        .btn-dark-green {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand-dark);
            color: #F5F1E8;
            font-weight: 700;
            padding: 0.65rem 1.5rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .btn-dark-green:hover {
            background: var(--brand-near-black);
        }
        .btn-light-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: #F5F1E8;
            font-weight: 600;
            padding: 0.65rem 1.5rem;
            border-radius: 6px;
            border: 1px solid rgba(245, 241, 232, 0.5);
            transition: background 0.2s, color 0.2s;
        }
        .btn-light-outline:hover {
            background: #F5F1E8;
            color: #0A332C;
        }

        /* Mobile nav */
        .mobile-menu {
            display: none;
            background: var(--brand-near-black);
            border-radius: 0 0 16px 16px;
            padding: 0.75rem 1.5rem 1.5rem;
        }
        .mobile-menu.open {
            display: block;
            background: var(--brand-near-black);
        }
        .mobile-menu .mobile-nav-link {
            color: #E3DDCF;
            padding: 0.85rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 1rem;
            font-weight: 500;
            display: block;
        }
        .mobile-menu .mobile-nav-link:hover {
            color: #F5F1E8;
        }
        .mobile-menu .mobile-nav-link.active {
            color: var(--gold);
        }
        .mobile-menu .btn-gold {
            margin-top: 1.25rem;
            width: 100%;
        }

        #mobileToggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }
        @media (max-width: 1024px) {
            .desktop-nav {
                display: none;
            }
            #mobileToggle {
                display: flex;
            }
        }
        @media (min-width: 1025px) {
            .mobile-menu, .mobile-menu.open {
                display: none;
            }
        }

        /* Page hero band */
        .band-image-bg {
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center 30%;
            position: relative;
        }
        .band-image-bg::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(8, 36, 31, 0.94), rgba(10, 51, 44, 0.82));
            z-index: 1;
        }
        .band-image-bg > * {
            position: relative;
            z-index: 2;
        }

        /* Cards */
        .card-white {
            background: #FFFFFF;
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-soft);
        }
        .card-white-hover {
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .card-white-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 2px 4px rgba(8,36,31,0.04), 0 28px 48px rgba(8,36,31,0.1);
            border-color: #C2A05E;
        }

        .spec-row {
            display: grid;
            grid-template-columns: 180px 1fr 160px;
            gap: 1.5rem;
            padding: 1.5rem 0.5rem;
            border-bottom: 1px solid var(--line);
            align-items: start;
        }
        @media (max-width: 1023px) {
            .spec-row {
                grid-template-columns: 130px 1fr 120px;
            }
        }
        @media (max-width:767px) {
            .spec-row {
                grid-template-columns: 1fr;
                gap: 0.4rem;
                padding: 1.3rem 0.25rem;
            }
        }
        .spec-label {
            font-weight: 700;
            color: var(--ink);
            font-size: 1rem;
        }
        .spec-detail {
            color: var(--ink-soft);
            font-size: 0.95rem;
        }
        .spec-ver {
            font-size: 0.8rem;
            background: rgba(10, 51, 44, 0.06);
            padding: 0.2rem 0.7rem;
            border-radius: 4px;
            color: var(--brand-dark);
            font-weight: 500;
            justify-self: start;
        }

        .timeline-item {
            position: relative;
            padding-left: 1rem;
        }
        .timeline-item::before {
            content: "";
            position: absolute;
            left: -0.3rem;
            top: 0.35rem;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--gold);
        }

        .mode-tab {
            background: rgba(194, 160, 94, 0.15);
            border: 1px solid rgba(194, 160, 94, 0.4);
            color: var(--brand-dark);
            font-weight: 600;
        }

        footer {
            background: var(--brand-near-black);
            color: #A9B6B0;
        }
        .footer-title {
            color: #F5F1E8;
            font-weight: 700;
            letter-spacing: 0.04em;
            font-size: 0.95rem;
        }
        .footer-link {
            display: block;
            color: #A9B6B0;
            font-size: 0.875rem;
            padding: 0.2rem 0;
            transition: color 0.2s;
        }
        .footer-link:hover {
            color: #C2A05E;
        }

        @media (max-width: 640px) {
            .container-x {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        @media (max-width: 767px) {
            .brand-main {
                font-size: 1.2rem;
            }
        }