/* roulang page: index */
:root {
            --primary: #16453F;
            --primary-dark: #0C2D28;
            --accent: #B98A5C;
            --accent-light: #D9BC9E;
            --bg: #F6F4EF;
            --white: #FFFFFF;
            --text: #1D2421;
            --text-muted: #6A7470;
            --border: rgba(22, 69, 63, 0.15);
            --radius: 6px;
            --shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 8px 24px rgba(22, 69, 63, 0.08);
            --transition: 250ms ease;
            --container: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Inter", "Manrope", "Helvetica Neue", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 88px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 12px;
            padding-left: 16px;
            position: relative;
        }

        .section-label::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            transform: translateY(-50%);
        }

        .section-title {
            font-size: 34px;
            line-height: 1.25;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.01em;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.7;
        }

        /* ===== Button ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 46px;
            padding: 0 28px;
            border-radius: 4px;
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--bg);
        }

        .btn-primary:hover {
            background: var(--accent);
            color: var(--text);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(185, 138, 92, 0.25);
        }

        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .btn-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        .btn-light:hover {
            border-color: var(--accent-light);
            color: var(--accent-light);
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 500;
            font-size: 15px;
        }

        .text-link:hover {
            color: var(--accent);
        }

        .text-link .arrow {
            transition: transform var(--transition);
        }

        .text-link:hover .arrow {
            transform: translateX(4px);
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 72px;
            background: rgba(246, 244, 239, 0.92);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            max-width: var(--container);
            margin: 0 auto;
            height: 100%;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .logo-mark svg {
            width: 18px;
            height: 18px;
        }

        .logo-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.01em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 0;
            transition: color var(--transition);
        }

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

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

        .nav-link.active {
            color: var(--primary);
        }

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

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
        }

        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            transition: all 0.3s;
        }

        .menu-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .menu-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 580px;
            padding: 160px 0 80px;
            background: url('/assets/images/backpic/back-1.webp') center center/cover no-repeat;
            display: flex;
            align-items: center;
            isolation: isolate;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(12, 45, 40, 0.9) 15%, rgba(22, 69, 63, 0.72) 55%, rgba(12, 45, 40, 0.4) 100%);
            z-index: -1;
        }

        .hero-inner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            max-width: 680px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border: 1px solid rgba(217, 188, 158, 0.4);
            border-radius: 999px;
            font-size: 13px;
            color: var(--accent-light);
            margin-bottom: 24px;
            letter-spacing: 0.02em;
        }

        .hero-title {
            font-size: 52px;
            line-height: 1.18;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 0.01em;
        }

        .hero-title .accent-text {
            color: var(--accent-light);
        }

        .hero-subtitle {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 36px;
            max-width: 480px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .hero-mark {
            display: flex;
            justify-content: center;
            align-items: center;
            opacity: 0.7;
        }

        .hero-mark svg {
            max-width: 300px;
            height: auto;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--primary-dark);
            padding: 48px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .stat-item {
            text-align: center;
            padding: 12px;
        }

        .stat-number {
            font-family: "Inter", "Manrope", sans-serif;
            font-size: 40px;
            font-weight: 700;
            color: var(--accent-light);
            line-height: 1.2;
        }

        .stat-label {
            margin-top: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }

        /* ===== Directory ===== */
        .directory-section {
            background: var(--bg);
            padding: 88px 0;
        }

        .directory-list {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 56px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }

        .directory-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 10px 12px;
            border-radius: 4px;
            transition: all var(--transition);
        }

        .directory-item:hover {
            background: rgba(185, 138, 92, 0.08);
        }

        .directory-num {
            font-family: "Inter", sans-serif;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.05em;
        }

        .directory-link {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            position: relative;
            padding-bottom: 2px;
        }

        .directory-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 1px;
            background: var(--accent);
            transform: scaleX(0);
            transition: transform var(--transition);
            transform-origin: right;
        }

        .directory-item:hover .directory-link::after {
            transform: scaleX(1);
            transform-origin: left;
        }

        .directory-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-left: 6px;
        }

        /* ===== Card ===== */
        .card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
        }

        .card:hover {
            border-color: var(--accent-light);
            box-shadow: var(--shadow-hover);
        }

        .card-media {
            overflow: hidden;
            position: relative;
            aspect-ratio: 16/10;
        }

        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .card:hover .card-media img {
            transform: scale(1.02);
        }

        .card-body {
            padding: 24px;
        }

        .card-tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 999px;
            background: rgba(185, 138, 92, 0.15);
            font-size: 12px;
            font-weight: 500;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .card-title {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text);
            margin-bottom: 8px;
        }

        .card-title a:hover {
            color: var(--accent);
        }

        .card-desc {
            font-size: 14px;
            line-height: 1.65;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-top: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== News / CMS ===== */
        .news-section {
            background: var(--bg);
            padding: 88px 0;
        }

        .news-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 40px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .news-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 24px;
        }

        .news-card-horizontal {
            display: flex;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }

        .news-card-horizontal:hover {
            border-color: var(--accent-light);
            box-shadow: var(--shadow-hover);
        }

        .news-card-horizontal .card-media {
            width: 260px;
            min-width: 260px;
            height: auto;
            aspect-ratio: 16/10;
        }

        .news-card-horizontal .card-body {
            padding: 24px;
            flex: 1;
        }

        .news-card-vertical .card-media {
            aspect-ratio: 16/9;
        }

        .news-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 24px;
        }

        .news-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 16px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 4px;
            transition: all var(--transition);
        }

        .news-row:hover {
            border-color: var(--accent-light);
            box-shadow: var(--shadow-hover);
        }

        .news-row-title {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 70%;
        }

        .news-row-title:hover {
            color: var(--accent);
        }

        .news-row-date {
            font-size: 13px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .empty-state {
            border: 2px dashed var(--border);
            border-radius: var(--radius);
            padding: 64px 32px;
            text-align: center;
            background: rgba(255, 255, 255, 0.4);
        }

        .empty-mark {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            border: 2px solid var(--border);
            border-radius: 50%;
            position: relative;
        }

        .empty-mark::before {
            content: "H";
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 600;
            color: var(--border);
        }

        .empty-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .empty-desc {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* ===== Feature cards ===== */
        .features-section {
            background: var(--white);
            padding: 88px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .features-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .feature-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 16px;
            border-radius: 4px;
            transition: background var(--transition);
        }

        .feature-item:hover {
            background: rgba(185, 138, 92, 0.06);
        }

        .feature-icon {
            width: 44px;
            height: 44px;
            min-width: 44px;
            background: rgba(22, 69, 63, 0.08);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }

        .feature-icon svg {
            width: 22px;
            height: 22px;
        }

        .feature-text h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .feature-text p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .feature-visual {
            position: relative;
        }

        .feature-visual .card {
            box-shadow: var(--shadow-hover);
        }

        /* ===== Guide ===== */
        .guide-section {
            background: var(--bg);
            padding: 88px 0;
        }

        .guide-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-top: 40px;
        }

        .guide-step {
            position: relative;
            padding: 32px 24px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: all var(--transition);
        }

        .guide-step:hover {
            border-color: var(--accent-light);
            box-shadow: var(--shadow-hover);
        }

        .guide-step-num {
            font-family: "Inter", sans-serif;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.08em;
        }

        .guide-step-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--text);
            margin: 16px 0 8px;
        }

        .guide-step-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        .guide-step::after {
            content: "";
            position: absolute;
            top: 40px;
            right: -20px;
            width: 32px;
            height: 1px;
            background: var(--accent-light);
        }

        .guide-step:last-child::after {
            display: none;
        }

        /* ===== Recommended ===== */
        .reco-section {
            background: var(--white);
            padding: 88px 0;
            border-top: 1px solid var(--border);
        }

        .reco-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .reco-card {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px;
            background: var(--bg);
            border: 1px solid transparent;
            border-radius: 4px;
            transition: all var(--transition);
        }

        .reco-card:hover {
            border-color: var(--accent-light);
            background: var(--white);
            box-shadow: var(--shadow-hover);
        }

        .reco-icon {
            width: 40px;
            height: 40px;
            min-width: 40px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-light);
        }

        .reco-icon svg {
            width: 20px;
            height: 20px;
        }

        .reco-info {
            flex: 1;
        }

        .reco-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
        }

        .reco-desc {
            font-size: 13px;
            color: var(--text-muted);
        }

        .reco-arrow {
            color: var(--accent);
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        .reco-card:hover .reco-arrow {
            transform: translateX(4px);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg);
            padding: 88px 0;
        }

        .faq-list {
            max-width: 780px;
            margin: 40px auto 0;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 8px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            transition: color var(--transition);
            width: 100%;
            text-align: left;
        }

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

        .faq-icon {
            width: 24px;
            height: 24px;
            min-width: 24px;
            margin-left: 16px;
            position: relative;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            background: var(--accent);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .faq-icon::before {
            width: 14px;
            height: 2px;
            top: 11px;
            left: 5px;
        }

        .faq-icon::after {
            width: 2px;
            height: 14px;
            top: 5px;
            left: 11px;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer-inner {
            padding: 0 8px 22px;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-muted);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary-dark);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 240px;
            height: 240px;
            border: 1px solid rgba(185, 138, 92, 0.2);
            border-radius: 50%;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 300px;
            height: 300px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 50%;
        }

        .cta-inner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .cta-title {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 480px;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            padding: 64px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-brand {
            max-width: 340px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: all var(--transition);
            padding-bottom: 2px;
            border-bottom: 1px solid transparent;
        }

        .footer-links a:hover {
            color: var(--accent-light);
            border-bottom-color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .copyright {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Mobile Float CTA ===== */
        .mobile-float-cta {
            display: none;
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 99;
            background: rgba(246, 244, 239, 0.88);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 8px;
            box-shadow: 0 8px 32px rgba(22, 69, 63, 0.15);
            gap: 8px;
        }

        .mobile-float-cta .btn {
            height: 38px;
            padding: 0 18px;
            font-size: 14px;
        }

        /* ===== Focus visible ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Reveal animation ===== */
        .reveal {
            opacity: 0;
            transform: translateY(8px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== Responsive ===== */
        @media (max-width: 992px) {
            .hero {
                min-height: 520px;
                padding: 130px 0 60px;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 0;
            }

            .hero-mark {
                display: none;
            }

            .hero-title {
                font-size: 40px;
            }

            .menu-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: var(--bg);
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
                align-items: stretch;
            }

            .main-nav.open {
                transform: translateY(0);
            }

            .main-nav a {
                padding: 14px 12px;
                border-radius: 4px;
                font-size: 16px;
            }

            .main-nav a:hover {
                background: rgba(217, 188, 158, 0.1);
            }

            .news-grid {
                grid-template-columns: 1fr;
            }

            .news-list {
                grid-template-columns: 1fr;
            }

            .features-grid {
                grid-template-columns: 1fr;
            }

            .guide-steps {
                grid-template-columns: 1fr;
            }

            .reco-grid {
                grid-template-columns: 1fr;
            }

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

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }

            .hero {
                min-height: auto;
                padding: 110px 0 48px;
            }

            .hero-title {
                font-size: 32px;
            }

            .hero-subtitle {
                font-size: 16px;
            }

            .section-title {
                font-size: 27px;
            }

            .news-card-horizontal {
                flex-direction: column;
            }

            .news-card-horizontal .card-media {
                width: 100%;
                min-width: 0;
                aspect-ratio: 16/9;
            }

            .cta-inner {
                flex-direction: column;
                text-align: center;
            }

            .cta-actions {
                justify-content: center;
            }

            .mobile-float-cta {
                display: flex;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .header-inner {
                padding: 0 16px;
            }

            .logo-text {
                font-size: 16px;
            }

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

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .stat-number {
                font-size: 32px;
            }

            .directory-list {
                flex-direction: column;
                gap: 4px;
            }

            .directory-desc {
                display: block;
                margin-left: 0;
                margin-top: 2px;
            }

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

            .cta-title {
                font-size: 24px;
            }
        }

/* roulang page: category1 */
/* ========== CSS 变量与 Reset ========== */
    :root {
        --primary: #16453F;
        --primary-dark: #0C2D28;
        --accent: #B98A5C;
        --accent-light: #D9BC9E;
        --bg: #F6F4EF;
        --card-bg: #FFFFFF;
        --text: #1D2421;
        --text-light: #6A7470;
        --border: rgba(22, 69, 63, 0.15);
        --radius: 6px;
        --radius-sm: 4px;
        --shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
        --shadow-hover: 0 8px 24px rgba(22, 69, 63, 0.08);
        --container: 1200px;
        --header-h: 72px;
        --transition: all 0.25s ease;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }
    body {
        font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        background: var(--bg);
        color: var(--text);
        font-size: 16px;
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
    }
    img {
        max-width: 100%;
        display: block;
    }
    a {
        color: var(--primary);
        text-decoration: none;
        transition: var(--transition);
    }
    button {
        font-family: inherit;
        cursor: pointer;
        border: none;
        background: none;
    }
    input,
    textarea {
        font-family: inherit;
        font-size: 15px;
    }
    ul,
    ol {
        list-style: none;
    }
    h1,
    h2,
    h3,
    h4 {
        font-weight: 700;
        line-height: 1.3;
        color: var(--text);
    }
    .container {
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ========== 按钮 ========== */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 44px;
        padding: 0 24px;
        border-radius: var(--radius-sm);
        font-size: 15px;
        font-weight: 600;
        letter-spacing: 0.01em;
        transition: var(--transition);
        white-space: nowrap;
    }
    .btn-primary {
        background: var(--primary);
        color: #F6F4EF;
    }
    .btn-primary:hover {
        background: var(--accent);
        color: var(--text);
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgba(185, 138, 92, 0.25);
    }
    .btn-secondary {
        background: transparent;
        color: var(--primary);
        border: 1px solid var(--primary);
    }
    .btn-secondary:hover {
        border-color: var(--accent);
        color: var(--accent);
    }
    .btn-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        height: 44px;
        padding: 0 4px;
        color: var(--primary);
        font-weight: 600;
        font-size: 15px;
        border-bottom: 1px solid transparent;
    }
    .btn-link span {
        transition: transform 0.25s ease;
    }
    .btn-link:hover {
        color: var(--accent);
        border-bottom-color: var(--accent);
    }
    .btn-link:hover span {
        transform: translateX(4px);
    }
    .btn:focus-visible,
    a:focus-visible,
    button:focus-visible {
        outline: 2px solid var(--accent);
        outline-offset: 2px;
    }

    /* ========== 导航 ========== */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: var(--header-h);
        background: rgba(246, 244, 239, 0.92);
        -webkit-backdrop-filter: blur(8px);
        backdrop-filter: blur(8px);
        border-bottom: 1px solid var(--border);
        z-index: 100;
    }
    .header-inner {
        height: var(--header-h);
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
    }
    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .logo-mark {
        display: inline-flex;
        width: 32px;
        height: 32px;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--primary);
        border-radius: var(--radius-sm);
        background: var(--primary);
    }
    .logo-mark svg {
        width: 18px;
        height: 18px;
        stroke: var(--accent-light);
        fill: none;
    }
    .logo-text {
        font-size: 18px;
        font-weight: 700;
        color: var(--primary);
        letter-spacing: 0.01em;
    }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 28px;
    }
    .nav-link {
        position: relative;
        font-size: 15px;
        font-weight: 500;
        color: var(--text);
        padding: 8px 2px;
        transition: var(--transition);
    }
    .nav-link::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: 0;
        width: 0;
        height: 2px;
        background: var(--accent);
        transition: width 0.25s ease;
    }
    .nav-link:hover {
        color: var(--accent);
    }
    .nav-link:hover::after {
        width: 100%;
    }
    .nav-link.active {
        color: var(--primary);
        font-weight: 600;
    }
    .nav-link.active::after {
        width: 100%;
    }
    .nav-toggle {
        display: none;
        flex-direction: column;
        gap: 5px;
        width: 40px;
        height: 40px;
        align-items: center;
        justify-content: center;
        border-radius: var(--radius-sm);
        transition: var(--transition);
    }
    .nav-toggle span {
        display: block;
        width: 20px;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
        transition: var(--transition);
    }
    .nav-toggle:hover {
        background: rgba(185, 138, 92, 0.12);
    }
    .nav-toggle.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    .nav-toggle.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    /* ========== Hero ========== */
    .guide-hero {
        margin-top: var(--header-h);
        background: linear-gradient(135deg, rgba(12, 45, 40, 0.92) 0%, rgba(22, 69, 63, 0.82) 100%), url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
        color: #F6F4EF;
        padding: 120px 0 76px;
        position: relative;
    }
    .guide-hero .hero-eyebrow {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.08em;
        color: var(--accent-light);
        background: rgba(217, 188, 158, 0.1);
        border: 1px solid rgba(217, 188, 158, 0.25);
        padding: 4px 14px;
        border-radius: 999px;
        margin-bottom: 20px;
    }
    .guide-hero h1 {
        font-size: 48px;
        line-height: 1.15;
        color: #F6F4EF;
        max-width: 720px;
        letter-spacing: 0.01em;
        margin-bottom: 20px;
    }
    .guide-hero .hero-desc {
        font-size: 17px;
        line-height: 1.8;
        color: rgba(246, 244, 239, 0.85);
        max-width: 640px;
        margin-bottom: 32px;
    }
    .hero-actions {
        display: flex;
        align-items: center;
        gap: 20px;
        flex-wrap: wrap;
        margin-bottom: 44px;
    }
    .hero-actions .btn-primary {
        background: var(--accent);
        color: var(--text);
    }
    .hero-actions .btn-primary:hover {
        background: var(--accent-light);
    }
    .hero-actions .btn-link {
        color: rgba(246, 244, 239, 0.9);
    }
    .hero-actions .btn-link:hover {
        color: var(--accent-light);
        border-bottom-color: var(--accent-light);
    }
    .hero-bottom {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-wrap: wrap;
        padding-top: 24px;
        border-top: 1px solid rgba(217, 188, 158, 0.2);
    }
    .hero-bottom-label {
        font-size: 13px;
        color: rgba(246, 244, 239, 0.65);
        margin-right: 4px;
    }
    .hero-tag {
        display: inline-block;
        font-size: 13px;
        color: rgba(246, 244, 239, 0.85);
        background: rgba(246, 244, 239, 0.08);
        border: 1px solid rgba(246, 244, 239, 0.2);
        padding: 4px 14px;
        border-radius: 999px;
        transition: var(--transition);
    }
    .hero-tag:hover {
        background: var(--accent);
        color: var(--primary-dark);
        border-color: var(--accent);
    }

    /* ========== 板块通用 ========== */
    .section {
        padding: 88px 0;
    }
    .section-kicker {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.1em;
        color: var(--accent);
        text-transform: uppercase;
        margin-bottom: 10px;
    }
    .section h2 {
        font-size: 34px;
        line-height: 1.3;
        color: var(--text);
        margin-bottom: 12px;
    }
    .section-head {
        max-width: 560px;
        margin-bottom: 48px;
    }
    .section-head p {
        color: var(--text-light);
        font-size: 16px;
    }

    /* ========== 目录区 ========== */
    .guide-directory {
        padding: 88px 0 64px;
        background: var(--bg);
    }
    .guide-directory .directory-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 24px;
        margin-bottom: 36px;
        flex-wrap: wrap;
    }
    .guide-directory .directory-head h2 {
        font-size: 34px;
    }
    .directory-list {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .directory-item {
        position: relative;
        display: flex;
        align-items: center;
        gap: 16px;
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 20px 24px;
        min-height: 84px;
        box-shadow: var(--shadow);
        transition: var(--transition);
    }
    .directory-item:hover {
        border-color: var(--accent-light);
        box-shadow: var(--shadow-hover);
        transform: translateY(-2px);
    }
    .dir-num {
        font-size: 15px;
        font-weight: 700;
        color: var(--accent);
        font-family: "Inter", "Manrope", "Helvetica Neue", sans-serif;
        flex-shrink: 0;
    }
    .dir-text {
        display: flex;
        flex-direction: column;
        gap: 2px;
        flex: 1;
    }
    .dir-name {
        font-size: 17px;
        font-weight: 600;
        color: var(--primary);
    }
    .dir-desc {
        font-size: 13px;
        color: var(--text-light);
    }
    .dir-arrow {
        font-size: 16px;
        color: var(--text-light);
        transition: var(--transition);
    }
    .directory-item:hover .dir-arrow {
        color: var(--accent);
        transform: translateX(4px);
    }

    /* ========== 精选教程 ========== */
    .guide-tutorials {
        padding: 72px 0 96px;
        background: var(--bg);
    }
    .guide-tutorials .section-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        max-width: none;
        flex-wrap: wrap;
        gap: 16px;
    }
    .guide-tutorials .section-head h2 {
        margin-bottom: 0;
    }
    .guide-tutorials .section-head p {
        max-width: 460px;
        text-align: right;
    }
    .tutorial-grid {
        display: grid;
        grid-template-columns: repeat(12, 1fr);
        gap: 24px;
    }
    .tutorial-card {
        position: relative;
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        overflow: hidden;
        box-shadow: var(--shadow);
        transition: var(--transition);
    }
    .tutorial-card:hover {
        border-color: var(--accent-light);
        box-shadow: var(--shadow-hover);
        transform: translateY(-3px);
    }
    .tutorial-card:hover img {
        transform: scale(1.02);
    }
    .tutorial-card .card-thumb {
        overflow: hidden;
    }
    .tutorial-card img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }
    .tutorial-card .card-body {
        padding: 24px 28px 26px;
    }
    .tutorial-card .tag {
        display: inline-block;
        font-size: 12px;
        font-weight: 600;
        color: var(--primary);
        background: rgba(217, 188, 158, 0.2);
        border-radius: 999px;
        padding: 3px 12px;
        margin-bottom: 12px;
    }
    .tutorial-card h3 {
        font-size: 20px;
        line-height: 1.4;
        color: var(--primary);
        margin-bottom: 8px;
    }
    .tutorial-card p {
        font-size: 14px;
        line-height: 1.7;
        color: var(--text-light);
        margin-bottom: 16px;
    }
    .card-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 14px;
        font-weight: 600;
        color: var(--primary);
    }
    .card-link span {
        transition: transform 0.25s ease;
    }
    .card-link:hover {
        color: var(--accent);
    }
    .card-link:hover span {
        transform: translateX(4px);
    }
    .tutorial-card.card-wide {
        grid-column: span 12;
        display: grid;
        grid-template-columns: 320px 1fr;
        min-height: 220px;
    }
    .tutorial-card.card-wide .card-thumb {
        height: 100%;
        min-height: 220px;
    }
    .tutorial-card.card-wide .card-body {
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding: 32px 40px;
    }
    .tutorial-card.card-wide h3 {
        font-size: 24px;
    }
    .tutorial-card.card-wide p {
        font-size: 15px;
    }
    .tutorial-card.card-half {
        grid-column: span 6;
    }
    .tutorial-card.card-half .card-thumb {
        height: 180px;
    }
    .tutorial-card.card-half .card-body {
        padding: 20px 24px 22px;
    }
    .tutorial-card.card-half h3 {
        font-size: 19px;
    }
    .tutorial-card.card-half p {
        font-size: 14px;
        margin-bottom: 12px;
    }

    /* ========== 新手流程 ========== */
    .guide-steps {
        padding: 96px 0;
        background: var(--primary-dark);
        color: #F6F4EF;
        background-image: linear-gradient(rgba(12, 45, 40, 0.92), rgba(12, 45, 40, 0.92)), url('/assets/images/backpic/back-2.webp');
        background-size: cover;
        background-position: center;
    }
    .steps-layout {
        display: grid;
        grid-template-columns: 5fr 7fr;
        gap: 64px;
        align-items: start;
    }
    .steps-intro .section-kicker {
        color: var(--accent-light);
    }
    .steps-intro h2 {
        color: #F6F4EF;
        font-size: 34px;
        margin-bottom: 16px;
    }
    .steps-intro p {
        color: rgba(246, 244, 239, 0.75);
        font-size: 16px;
        line-height: 1.8;
    }
    .steps-list {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }
    .step-item {
        display: flex;
        gap: 20px;
        background: rgba(246, 244, 239, 0.06);
        border: 1px solid rgba(217, 188, 158, 0.18);
        border-radius: var(--radius);
        padding: 24px 28px;
        transition: var(--transition);
    }
    .step-item:hover {
        background: rgba(246, 244, 239, 0.1);
        border-color: rgba(217, 188, 158, 0.4);
    }
    .step-num {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 42px;
        height: 42px;
        border-radius: 50%;
        background: var(--accent);
        color: var(--primary-dark);
        font-size: 16px;
        font-weight: 700;
        font-family: "Inter", "Manrope", sans-serif;
        flex-shrink: 0;
        margin-top: 4px;
    }
    .step-content {
        flex: 1;
    }
    .step-content h3 {
        font-size: 18px;
        color: #F6F4EF;
        margin-bottom: 6px;
    }
    .step-content p {
        font-size: 14px;
        line-height: 1.7;
        color: rgba(246, 244, 239, 0.7);
    }

    /* ========== 注意事项 ========== */
    .guide-tips {
        padding: 96px 0;
        background: var(--bg);
    }
    .tips-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
    .tip-card {
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 28px 24px;
        transition: var(--transition);
        box-shadow: var(--shadow);
    }
    .tip-card:hover {
        box-shadow: var(--shadow-hover);
        border-color: var(--accent-light);
        transform: translateY(-3px);
    }
    .tip-icon {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: var(--radius-sm);
        background: rgba(185, 138, 92, 0.12);
        color: var(--accent);
        margin-bottom: 16px;
        font-size: 20px;
    }
    .tip-card h3 {
        font-size: 17px;
        color: var(--primary);
        margin-bottom: 8px;
    }
    .tip-card p {
        font-size: 14px;
        line-height: 1.7;
        color: var(--text-light);
    }

    /* ========== FAQ ========== */
    .guide-faq {
        padding: 96px 0;
        background: var(--card-bg);
    }
    .guide-faq .section-head {
        margin-bottom: 40px;
    }
    .faq-list {
        max-width: 760px;
        border-top: 1px solid var(--border);
    }
    .faq-item {
        border-bottom: 1px solid var(--border);
    }
    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        width: 100%;
        padding: 22px 4px;
        font-size: 16px;
        font-weight: 600;
        color: var(--primary);
        text-align: left;
        cursor: pointer;
        transition: var(--transition);
    }
    .faq-question:hover {
        color: var(--accent);
    }
    .faq-icon {
        position: relative;
        width: 16px;
        height: 16px;
        flex-shrink: 0;
        transition: transform 0.3s ease;
    }
    .faq-icon::before,
    .faq-icon::after {
        content: "";
        position: absolute;
        background: var(--accent);
        border-radius: 1px;
        transition: all 0.3s ease;
    }
    .faq-icon::before {
        top: 7px;
        left: 0;
        width: 16px;
        height: 2px;
    }
    .faq-icon::after {
        top: 0;
        left: 7px;
        width: 2px;
        height: 16px;
    }
    .faq-item.open .faq-icon {
        transform: rotate(45deg);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
        padding: 0 4px;
    }
    .faq-answer-inner {
        padding: 0 0 22px;
        font-size: 15px;
        color: var(--text-light);
        line-height: 1.8;
    }

    /* ========== CTA ========== */
    .guide-cta {
        padding: 64px 0 96px;
        background: var(--bg);
    }
    .cta-box {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 40px;
        background: var(--primary);
        border-radius: var(--radius);
        padding: 48px 56px;
        flex-wrap: wrap;
        box-shadow: var(--shadow-hover);
    }
    .cta-text h2 {
        color: #F6F4EF;
        font-size: 28px;
        margin-bottom: 10px;
    }
    .cta-text p {
        color: rgba(246, 244, 239, 0.75);
        font-size: 15px;
        max-width: 480px;
    }
    .cta-actions {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
    }
    .cta-actions .btn-primary {
        background: var(--accent);
        color: var(--text);
    }
    .cta-actions .btn-primary:hover {
        background: var(--accent-light);
    }
    .cta-actions .btn-secondary {
        border-color: rgba(246, 244, 239, 0.5);
        color: #F6F4EF;
    }
    .cta-actions .btn-secondary:hover {
        border-color: var(--accent-light);
        color: var(--accent-light);
    }

    /* ========== 页脚 ========== */
    .site-footer {
        background: var(--primary-dark);
        color: rgba(246, 244, 239, 0.7);
        padding: 72px 0 32px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr;
        gap: 56px;
        margin-bottom: 56px;
    }
    .footer-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 16px;
    }
    .footer-logo .logo-mark {
        width: 28px;
        height: 28px;
        border-color: transparent;
        background: rgba(217, 188, 158, 0.15);
    }
    .footer-logo .logo-mark svg {
        width: 16px;
        height: 16px;
        stroke: var(--accent-light);
    }
    .footer-logo-text {
        font-size: 17px;
        font-weight: 700;
        color: #F6F4EF;
    }
    .footer-desc {
        font-size: 14px;
        line-height: 1.8;
        color: rgba(246, 244, 239, 0.6);
        max-width: 340px;
        margin-bottom: 0;
    }
    .footer-title {
        font-size: 14px;
        font-weight: 600;
        color: #F6F4EF;
        margin-bottom: 16px;
        letter-spacing: 0.04em;
    }
    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .footer-links a {
        font-size: 14px;
        color: rgba(246, 244, 239, 0.6);
        transition: var(--transition);
    }
    .footer-links a:hover {
        color: var(--accent);
        padding-left: 4px;
    }
    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding-top: 28px;
        border-top: 1px solid rgba(246, 244, 239, 0.1);
        flex-wrap: wrap;
    }
    .copyright {
        font-size: 13px;
        color: rgba(246, 244, 239, 0.45);
    }

    /* ========== Toast ========== */
    .toast {
        position: fixed;
        bottom: 32px;
        left: 50%;
        transform: translateX(-50%) translateY(20px);
        background: var(--primary-dark);
        color: #F6F4EF;
        font-size: 14px;
        font-weight: 500;
        padding: 12px 28px;
        border-radius: 999px;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
        opacity: 0;
        visibility: hidden;
        transition: all 0.35s ease;
        z-index: 999;
        border: 1px solid rgba(217, 188, 158, 0.3);
        pointer-events: none;
    }
    .toast.show {
        opacity: 1;
        visibility: visible;
        transform: translateX(-50%) translateY(0);
    }

    /* ========== 响应式 ========== */
    @media (max-width: 992px) {
        .nav-toggle {
            display: flex;
        }
        .main-nav {
            position: fixed;
            top: var(--header-h);
            left: 0;
            right: 0;
            background: var(--bg);
            flex-direction: column;
            align-items: stretch;
            gap: 0;
            padding: 8px 24px 20px;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
            transform: translateY(-120%);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        .main-nav.open {
            transform: translateY(0);
            opacity: 1;
            visibility: visible;
        }
        .nav-link {
            padding: 14px 4px;
            font-size: 16px;
            border-bottom: 1px solid rgba(22, 69, 63, 0.08);
        }
        .nav-link:last-child {
            border-bottom: none;
        }
        .nav-link::after {
            display: none;
        }
        .nav-link.active {
            color: var(--accent);
        }
        .directory-list {
            grid-template-columns: 1fr;
        }
        .steps-layout {
            grid-template-columns: 1fr;
            gap: 40px;
        }
        .tips-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .tutorial-card.card-wide {
            grid-template-columns: 1fr;
        }
        .tutorial-card.card-wide .card-thumb {
            height: 220px;
            min-height: 0;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
    }
    @media (max-width: 768px) {
        .container {
            padding: 0 20px;
        }
        .guide-hero {
            padding: 88px 0 56px;
        }
        .guide-hero h1 {
            font-size: 36px;
        }
        .guide-hero .hero-desc {
            font-size: 16px;
        }
        .section {
            padding: 64px 0;
        }
        .guide-directory {
            padding: 64px 0 48px;
        }
        .guide-tutorials {
            padding: 56px 0 72px;
        }
        .guide-steps {
            padding: 72px 0;
        }
        .guide-tips {
            padding: 72px 0;
        }
        .guide-faq {
            padding: 72px 0;
        }
        .section h2 {
            font-size: 28px;
        }
        .directory-item {
            min-height: 0;
        }
        .tutorial-grid {
            grid-template-columns: 1fr;
        }
        .tutorial-card.card-wide,
        .tutorial-card.card-half {
            grid-column: span 1;
        }
        .tutorial-card.card-wide .card-body {
            padding: 24px 24px 28px;
        }
        .tutorial-card.card-half .card-thumb {
            height: 190px;
        }
        .tips-grid {
            grid-template-columns: 1fr;
        }
        .cta-box {
            padding: 36px 28px;
            gap: 24px;
            flex-direction: column;
            align-items: flex-start;
        }
        .cta-actions {
            width: 100%;
        }
        .cta-actions .btn {
            flex: 1;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
        }
        .hero-actions {
            flex-direction: column;
            align-items: stretch;
        }
        .hero-actions .btn {
            width: 100%;
        }
        .hero-actions .btn-link {
            justify-content: center;
        }
    }
    @media (max-width: 520px) {
        .guide-hero h1 {
            font-size: 30px;
        }
        .guide-hero .hero-desc {
            font-size: 15px;
        }
        .section h2 {
            font-size: 26px;
        }
        .logo-text {
            font-size: 16px;
        }
        .tutorial-card.card-wide .card-thumb {
            height: 180px;
        }
        .tutorial-card img {
            height: auto;
        }
        .cta-actions {
            flex-direction: column;
        }
    }

/* roulang page: article */
:root {
            --primary: #16453F;
            --primary-dark: #0C2D28;
            --accent: #B98A5C;
            --accent-light: #D9BC9E;
            --bg: #F6F4EF;
            --card: #FFFFFF;
            --text: #1D2421;
            --text-weak: #6A7470;
            --border: rgba(22, 69, 63, 0.15);
            --radius: 6px;
            --shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 8px 24px rgba(22, 69, 63, 0.08);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --font-num: "Inter", "Manrope", "Helvetica Neue", sans-serif;
        }

        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            font-size: 16px;
        }

        a {
            color: var(--primary);
            text-decoration: none;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            max-width: 780px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(246, 244, 239, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 32px;
            height: 32px;
            border: 1.5px solid var(--primary);
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            background: transparent;
        }

        .logo-mark svg {
            width: 18px;
            height: 18px;
        }

        .logo-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 0;
            transition: color 250ms ease;
        }

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

        .nav-link.active {
            color: var(--primary);
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--accent-light);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 4px;
            cursor: pointer;
            padding: 0;
        }

        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
            transition: transform 250ms ease, opacity 250ms ease;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

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

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            font-size: 15px;
            font-weight: 500;
            border-radius: 4px;
            border: 1px solid transparent;
            cursor: pointer;
            transition: background 250ms ease, color 250ms ease, border-color 250ms ease, transform 250ms ease, box-shadow 250ms ease;
            line-height: 1;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--bg);
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #1D2421;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }

        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-secondary:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .btn-light {
            background: transparent;
            color: var(--bg);
            border-color: rgba(217, 188, 158, 0.45);
        }

        .btn-light:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: var(--primary-dark);
        }

        .btn:focus-visible,
        .nav-toggle:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid rgba(185, 138, 92, 0.6);
            outline-offset: 2px;
        }

        .tag-chip {
            display: inline-block;
            padding: 3px 14px;
            border-radius: 999px;
            background: rgba(217, 188, 158, 0.35);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            line-height: 1.6;
            transition: background 250ms ease, color 250ms ease;
            white-space: nowrap;
        }

        .tag-chip:hover {
            background: var(--accent);
            color: #1D2421;
        }

        /* ===== Article Page ===== */
        .article-main {
            padding-bottom: 0;
        }

        .article-breadcrumb-row {
            padding-top: 24px;
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            padding-bottom: 14px;
            border-bottom: 1px solid var(--border);
        }

        .article-breadcrumb a {
            color: var(--primary);
            transition: color 250ms ease;
        }

        .article-breadcrumb a:hover {
            color: var(--accent);
        }

        .article-breadcrumb .sep {
            color: rgba(22, 69, 63, 0.35);
            font-family: var(--font-num);
        }

        .article-breadcrumb .crumb-current {
            color: var(--text-weak);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 260px;
        }

        .article-detail {
            position: relative;
            padding: 0 0 64px;
        }

        .article-head {
            position: relative;
            padding: 48px 0 32px;
            border-bottom: 1px solid var(--border);
        }

        .article-head::before {
            content: "H";
            position: absolute;
            top: 16px;
            right: 0;
            font-family: var(--font-num);
            font-size: 170px;
            line-height: 1;
            font-weight: 800;
            color: rgba(22, 69, 63, 0.045);
            pointer-events: none;
            user-select: none;
            z-index: 0;
        }

        .article-kicker {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--accent);
            text-transform: uppercase;
        }

        .kicker-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        .article-title {
            position: relative;
            z-index: 1;
            font-size: clamp(30px, 4.2vw, 46px);
            line-height: 1.2;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
            margin: 18px 0 20px;
            text-wrap: balance;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-weak);
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .meta-sep {
            color: rgba(22, 69, 63, 0.3);
        }

        .article-content {
            position: relative;
            z-index: 1;
            padding-top: 40px;
            font-size: 17px;
            line-height: 1.9;
            color: var(--text);
            word-wrap: break-word;
        }

        .article-content p {
            margin-bottom: 24px;
        }

        .article-content h2 {
            font-size: 28px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text);
            margin: 56px 0 20px;
        }

        .article-content h3 {
            font-size: 22px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text);
            margin: 40px 0 16px;
        }

        .article-content h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin: 32px 0 14px;
        }

        .article-content img {
            max-width: 100%;
            border-radius: 6px;
            margin: 28px 0;
            height: auto;
        }

        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 4px;
            text-decoration-color: var(--accent);
            transition: color 250ms ease;
        }

        .article-content a:hover {
            color: var(--accent);
        }

        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: rgba(255, 255, 255, 0.75);
            padding: 16px 22px;
            margin: 28px 0;
            border-radius: 0 6px 6px 0;
            color: var(--text-weak);
            font-size: 15px;
        }

        .article-content blockquote p {
            margin-bottom: 0;
        }

        .article-content ul,
        .article-content ol {
            padding-left: 24px;
            margin-bottom: 24px;
        }

        .article-content li {
            margin-bottom: 8px;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 24px;
            font-size: 15px;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }

        .article-content table th {
            background: rgba(22, 69, 63, 0.06);
            font-weight: 600;
        }

        .article-content hr {
            border: 0;
            border-top: 1px solid var(--border);
            margin: 32px 0;
        }

        .article-content iframe,
        .article-content video {
            max-width: 100%;
            border-radius: 6px;
            margin: 24px 0;
        }

        .article-content code {
            font-family: "SF Mono", "Consolas", monospace;
            font-size: 14px;
            background: rgba(22, 69, 63, 0.06);
            padding: 2px 6px;
            border-radius: 4px;
        }

        .article-content pre {
            background: var(--primary-dark);
            color: #F6F4EF;
            padding: 20px;
            border-radius: 6px;
            overflow-x: auto;
            margin: 24px 0;
            line-height: 1.55;
        }

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

        /* ===== Article Footer ===== */
        .article-footer {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .article-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .article-actions .btn {
            height: 40px;
            padding: 0 20px;
            font-size: 14px;
        }

        /* ===== Pager ===== */
        .article-pager {
            display: flex;
            gap: 16px;
            margin-top: 36px;
        }

        .pager-link {
            flex: 1;
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: border-color 250ms ease, box-shadow 250ms ease, transform 250ms ease;
        }

        .pager-link:hover {
            border-color: var(--accent-light);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .pager-link.right {
            justify-content: flex-end;
            text-align: right;
        }

        .pager-arrow {
            font-family: var(--font-num);
            font-size: 18px;
            color: var(--accent);
            flex-shrink: 0;
        }

        .pager-pair {
            display: flex;
            flex-direction: column;
            gap: 4px;
            min-width: 0;
        }

        .pager-label {
            font-size: 13px;
            color: var(--text-weak);
        }

        .pager-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .pager-link:hover .pager-title {
            color: var(--primary);
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: 72px 0;
            background: rgba(255, 255, 255, 0.55);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 16px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 600;
            line-height: 1.3;
            color: var(--text);
        }

        .section-head p {
            font-size: 14px;
            color: var(--text-weak);
            margin: 0;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            display: flex;
            flex-direction: column;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: border-color 250ms ease, box-shadow 250ms ease, transform 250ms ease;
            min-width: 0;
        }

        .related-card:hover {
            border-color: var(--accent-light);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .related-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--primary-dark);
        }

        .related-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 250ms ease;
        }

        .related-card:hover .related-img img {
            transform: scale(1.02);
        }

        .related-body {
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 22px 22px 24px;
            flex: 1;
        }

        .related-body h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
        }

        .related-body p {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-weak);
            margin: 0;
            flex: 1;
        }

        .related-link {
            margin-top: 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color 250ms ease;
        }

        .related-link em {
            font-style: normal;
            display: inline-block;
            transition: transform 250ms ease;
        }

        .related-card:hover .related-link {
            color: var(--accent);
        }

        .related-card:hover .related-link em {
            transform: translateX(4px);
        }

        /* ===== CTA ===== */
        .bottom-cta {
            padding: 72px 0 88px;
        }

        .cta-panel {
            position: relative;
            overflow: hidden;
            background: var(--primary);
            border-radius: 10px;
            padding: 44px 48px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 32px;
            color: var(--bg);
        }

        .cta-panel::after {
            content: "H";
            position: absolute;
            right: 18px;
            bottom: -32px;
            font-family: var(--font-num);
            font-size: 130px;
            line-height: 1;
            font-weight: 800;
            color: rgba(217, 188, 158, 0.09);
            pointer-events: none;
            user-select: none;
        }

        .cta-cell {
            position: relative;
            z-index: 1;
        }

        .cta-cell h3 {
            font-size: 26px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .cta-cell p {
            color: rgba(246, 244, 239, 0.75);
            font-size: 15px;
            margin: 0;
        }

        .cta-cell-right {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        /* ===== Not Found ===== */
        .not-found {
            text-align: center;
            padding: 80px 0 56px;
            border-bottom: 1px solid var(--border);
        }

        .nf-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            border: 1.5px solid var(--accent-light);
            border-radius: 8px;
            font-family: var(--font-num);
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 24px;
        }

        .not-found .article-title {
            font-size: 36px;
            margin: 16px 0;
        }

        .not-found p {
            color: var(--text-weak);
            margin-bottom: 28px;
        }

        /* ===== Mobile Fab ===== */
        .mobile-fab {
            display: none;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: var(--bg);
            padding: 64px 0 28px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(217, 188, 158, 0.18);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--bg);
            letter-spacing: 0.02em;
        }

        .footer-logo .logo-mark {
            border-color: var(--accent-light);
            color: var(--accent-light);
        }

        .footer-desc {
            line-height: 1.7;
            color: rgba(246, 244, 239, 0.7);
            margin-top: 16px;
            max-width: 380px;
            font-size: 14px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--bg);
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            color: rgba(246, 244, 239, 0.7);
            transition: color 250ms ease;
        }

        .footer-links a:hover {
            color: var(--accent-light);
            text-decoration: underline;
            text-underline-offset: 4px;
            text-decoration-color: rgba(217, 188, 158, 0.4);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            flex-wrap: wrap;
            gap: 8px;
        }

        .copyright {
            color: rgba(246, 244, 239, 0.5);
            font-size: 13px;
        }

        /* ===== Toast ===== */
        .toast {
            position: fixed;
            bottom: 32px;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: var(--primary-dark);
            color: var(--bg);
            padding: 12px 24px;
            border-radius: 6px;
            font-size: 14px;
            opacity: 0;
            transition: opacity 250ms ease, transform 250ms ease;
            z-index: 1200;
            pointer-events: none;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
            font-weight: 500;
        }

        .toast.show {
            opacity: 1;
            transform: translateX(-50%) translateY(0);
        }

        /* ===== Responsive ===== */
        @media (max-width: 991px) {
            .nav-toggle {
                display: inline-flex;
            }

            .main-nav {
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                display: none;
                padding: 8px 24px 16px;
                background: var(--bg);
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 24px rgba(12, 45, 40, 0.06);
            }

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

            .nav-link {
                padding: 14px 0;
                border-bottom: 1px solid var(--border);
                font-size: 16px;
                width: 100%;
            }

            .nav-link.active::after {
                left: 0;
                width: 24px;
            }

            .nav-link:last-child {
                border-bottom: none;
            }

            .related-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }

            .article-head {
                padding: 36px 0 24px;
            }

            .article-head::before {
                font-size: 96px;
                top: 8px;
            }

            .article-content {
                padding-top: 28px;
                font-size: 16px;
            }

            .article-footer {
                flex-direction: column;
                align-items: flex-start;
            }

            .article-pager {
                flex-direction: column;
            }

            .pager-link.right {
                justify-content: flex-start;
                text-align: left;
            }

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

            .section-head {
                flex-direction: column;
                align-items: flex-start;
                margin-bottom: 24px;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

            .bottom-cta {
                padding: 56px 0 120px;
            }

            .cta-panel {
                flex-direction: column;
                align-items: flex-start;
                padding: 32px 24px;
                gap: 24px;
            }

            .cta-cell-right {
                width: 100%;
            }

            .cta-cell-right .btn {
                flex: 1;
            }

            .mobile-fab {
                display: flex;
                position: fixed;
                bottom: 16px;
                left: 16px;
                right: 16px;
                z-index: 110;
                background: rgba(246, 244, 239, 0.92);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                border: 1px solid var(--border);
                border-radius: 999px;
                padding: 6px;
                box-shadow: 0 8px 24px rgba(12, 45, 40, 0.12);
                justify-content: center;
                gap: 10px;
                opacity: 0;
                transform: translateY(calc(100% + 24px));
                transition: opacity 300ms ease, transform 300ms ease;
            }

            .mobile-fab.show {
                opacity: 1;
                transform: translateY(0);
            }

            .fab-btn {
                flex: 1;
                height: 40px;
                border: none;
                background: transparent;
                color: var(--primary);
                font-size: 14px;
                font-weight: 600;
                border-radius: 999px;
                cursor: pointer;
                transition: background 250ms ease, color 250ms ease;
            }

            .fab-btn.fab-solid {
                background: var(--primary);
                color: var(--bg);
            }

            .fab-btn:hover {
                background: var(--accent-light);
            }

            .fab-solid:hover {
                background: var(--accent);
                color: #1D2421;
            }

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

            .footer-bottom {
                flex-direction: column;
                justify-content: flex-start;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 17px;
            }

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

            .article-breadcrumb .crumb-current {
                max-width: 160px;
            }

            .article-actions {
                width: 100%;
            }

            .article-actions .btn {
                flex: 1;
            }

            .btn {
                white-space: normal;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }

            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: category2 */
:root {
    --brand-green: #16453F;
    --brand-green-deep: #0C2D28;
    --brand-green-dark: #0A2621;
    --brand-bronze: #B98A5C;
    --brand-bronze-light: #D9BC9E;
    --bg-warm: #F6F4EF;
    --card-white: #FFFFFF;
    --text-dark: #1D2421;
    --text-muted: #6A7470;
    --border-color: rgba(22,69,63,0.15);
    --radius: 6px;
    --radius-sm: 4px;
    --shadow-light: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-hover: 0 8px 24px rgba(22,69,63,0.08);
    --container-max: 1200px;
    --transition: 250ms ease;
    --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Inter", "Manrope", "Helvetica Neue", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { font-family: var(--font-sans); background: var(--bg-warm); color: var(--text-dark); font-size: 16px; line-height: 1.75; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--brand-green); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--brand-bronze); }
button { font-family: inherit; cursor: pointer; }
ul, ol { list-style: none; }
input { font-family: inherit; }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-head { margin-bottom: 44px; max-width: 720px; }
.section-head .section-label { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 0.04em; color: var(--brand-bronze); text-transform: uppercase; margin-bottom: 8px; }
.section-head h2 { font-size: 34px; line-height: 1.3; color: var(--brand-green); font-weight: 700; }
.section-head p { margin-top: 12px; font-size: 15px; color: var(--text-muted); line-height: 1.7; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Header */
.site-header { position: fixed; top: 0; left: 0; width: 100%; height: 72px; background: rgba(246,244,239,0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--border-color); z-index: 1000; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark { display: flex; width: 36px; height: 36px; align-items: center; justify-content: center; border: 1px solid var(--brand-green); border-radius: var(--radius-sm); background: transparent; transition: border-color var(--transition); }
.logo-mark svg { width: 20px; height: 20px; }
.logo-text { font-size: 18px; font-weight: 700; color: var(--brand-green); letter-spacing: 0.01em; }
.logo:hover .logo-mark { border-color: var(--brand-bronze); }
.main-nav { display: flex; gap: 28px; }
.nav-link { position: relative; font-size: 15px; font-weight: 500; color: var(--text-dark); padding: 8px 2px; line-height: 1.4; }
.nav-link::after { content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 2px; background: var(--brand-bronze); transform: scaleX(0); transform-origin: right; transition: transform var(--transition); }
.nav-link:hover { color: var(--brand-bronze); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); transform-origin: left; }
.nav-link.active { color: var(--brand-green); font-weight: 600; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; background: transparent; border: 0; padding: 8px; border-radius: var(--radius-sm); }
.menu-toggle span { width: 22px; height: 2px; background: var(--brand-green); border-radius: 2px; transition: all var(--transition); }
.menu-toggle:hover span { background: var(--brand-bronze); }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Buttons */
.btn-primary { display: inline-flex; height: 44px; padding: 0 26px; align-items: center; justify-content: center; background: var(--brand-green); color: #F6F4EF; border: 1px solid var(--brand-green); border-radius: var(--radius-sm); font-size: 15px; font-weight: 600; letter-spacing: 0.02em; transition: all var(--transition); }
.btn-primary:hover { background: var(--brand-bronze); border-color: var(--brand-bronze); color: var(--text-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(185,138,92,0.25); }
.btn-outline { display: inline-flex; height: 44px; padding: 0 26px; align-items: center; justify-content: center; background: transparent; color: var(--brand-green); border: 1px solid var(--brand-green); border-radius: var(--radius-sm); font-size: 15px; font-weight: 600; transition: all var(--transition); }
.btn-outline:hover { border-color: var(--brand-bronze); color: var(--brand-bronze); }
.btn-outline-light { color: #F6F4EF; border-color: rgba(246,244,239,0.6); }
.btn-outline-light:hover { color: var(--brand-bronze); border-color: var(--brand-bronze); background: rgba(246,244,239,0.06); }
.btn-text { display: inline-flex; align-items: center; gap: 6px; font-size: 15px; font-weight: 600; color: var(--brand-green); background: transparent; border: 0; padding: 6px 0; transition: color var(--transition); }
.btn-text .arrow { transition: transform var(--transition); }
.btn-text:hover { color: var(--brand-bronze); }
.btn-text:hover .arrow { transform: translateX(4px); }

/* Hero */
.page-hero { position: relative; padding: 160px 0 90px; background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat; overflow: hidden; }
.page-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(115deg, rgba(12,45,40,0.92) 0%, rgba(22,69,63,0.82) 55%, rgba(10,38,33,0.7) 100%); }
.page-hero::after { content: ""; position: absolute; right: -60px; bottom: -80px; width: 320px; height: 320px; border: 2px solid rgba(217,188,158,0.18); border-radius: 50%; pointer-events: none; }
.hero-content { position: relative; z-index: 2; max-width: 800px; }
.hero-title { font-size: 50px; line-height: 1.15; color: #F6F4EF; font-weight: 700; letter-spacing: 0.01em; margin-bottom: 18px; }
.hero-title .hero-mark { color: var(--brand-bronze-light); }
.hero-subtitle { font-size: 17px; color: rgba(246,244,239,0.88); line-height: 1.8; max-width: 560px; margin-bottom: 34px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.hero-bottom-line { position: absolute; bottom: 0; left: 0; width: 100%; height: 1px; background: linear-gradient(90deg, rgba(217,188,158,0.6), transparent 70%); z-index: 2; }

/* Breadcrumb */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(246,244,239,0.7); margin-bottom: 24px; flex-wrap: wrap; }
.breadcrumb a { color: rgba(246,244,239,0.85); }
.breadcrumb a:hover { color: var(--brand-bronze); }
.breadcrumb .sep { color: rgba(246,244,239,0.4); }

/* Anchor Section */
.anchor-section { padding: 56px 0 24px; border-bottom: 1px solid var(--border-color); }
.anchor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.anchor-item { display: flex; align-items: center; gap: 14px; padding: 18px 20px; background: var(--card-white); border: 1px solid var(--border-color); border-radius: var(--radius); box-shadow: var(--shadow-light); transition: all var(--transition); }
.anchor-item .num { font-family: "Inter", "Manrope", sans-serif; font-size: 14px; font-weight: 700; color: var(--brand-bronze); line-height: 1; }
.anchor-item .anchor-text { font-size: 15px; font-weight: 600; color: var(--text-dark); line-height: 1.4; }
.anchor-item:hover { border-color: var(--brand-bronze-light); box-shadow: var(--shadow-hover); transform: translateY(-2px); }

/* Feature Cards */
.features-section { padding: 72px 0 48px; }
.feature-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; margin-bottom: 24px; align-items: stretch; }
.feature-card { border: 1px solid var(--border-color); border-radius: var(--radius); overflow: hidden; background: var(--card-white); box-shadow: var(--shadow-light); transition: all var(--transition); }
.feature-card:hover { border-color: var(--brand-bronze-light); box-shadow: var(--shadow-hover); }
.feature-card .card-img { overflow: hidden; position: relative; }
.feature-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms ease; }
.feature-card:hover .card-img img { transform: scale(1.02); }
.feature-card .card-body { padding: 24px; }
.feature-card .card-tag { display: inline-block; padding: 4px 12px; background: rgba(217,188,158,0.2); border-radius: 999px; font-size: 12px; font-weight: 600; color: var(--brand-green); margin-bottom: 12px; }
.feature-card h3 { font-size: 20px; line-height: 1.4; color: var(--text-dark); font-weight: 700; margin-bottom: 8px; }
.feature-card .card-text { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.feature-card .card-link { display: inline-flex; align-items: center; gap: 4px; margin-top: 16px; font-size: 14px; font-weight: 600; color: var(--brand-green); }
.feature-card .card-link:hover { color: var(--brand-bronze); }
.feature-card .card-link .arrow { transition: transform var(--transition); }
.feature-card .card-link:hover .arrow { transform: translateX(4px); }

.card-large { grid-column: span 7; display: flex; flex-direction: column; }
.card-large .card-img { height: 260px; flex-shrink: 0; }
.card-large .card-body { flex: 1; }

.card-col { grid-column: span 5; display: flex; flex-direction: column; gap: 24px; }
.card-col .feature-card { flex: 1; display: flex; align-items: stretch; }
.card-col .card-img { width: 45%; min-height: 160px; flex-shrink: 0; }
.card-col .card-img img { height: 100%; }
.card-col .card-body { flex: 1; padding: 20px; display: flex; flex-direction: column; justify-content: center; }
.card-col h3 { font-size: 17px; }
.card-col .card-text { font-size: 13px; -webkit-line-clamp: 2; display: -webkit-box; -webkit-box-orient: vertical; overflow: hidden; }

.card-row { grid-column: span 6; display: flex; align-items: center; }
.card-row .card-img { width: 38%; min-width: 170px; height: 150px; flex-shrink: 0; }
.card-row .card-body { flex: 1; padding: 20px 24px; }
.card-row h3 { font-size: 17px; }
.card-row .card-text { font-size: 13px; }

/* Steps */
.steps-section { background: var(--card-white); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step-item { padding: 36px 24px 32px; text-align: center; background: var(--bg-warm); border: 1px solid var(--border-color); border-radius: var(--radius); position: relative; transition: all var(--transition); }
.step-item:hover { border-color: var(--brand-bronze-light); box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.step-num { font-family: "Inter", "Manrope", sans-serif; font-size: 36px; font-weight: 800; color: var(--brand-bronze); line-height: 1; opacity: 0.85; }
.step-title { font-size: 17px; font-weight: 700; color: var(--text-dark); margin: 14px 0 8px; }
.step-desc { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

/* Tip Box */
.tip-section { padding: 56px 0 0; }
.tip-box { display: flex; gap: 20px; align-items: flex-start; background: var(--card-white); border: 1px solid var(--border-color); border-left: 4px solid var(--brand-bronze); border-radius: var(--radius); padding: 28px 32px; box-shadow: var(--shadow-light); }
.tip-icon { font-size: 24px; line-height: 1; color: var(--brand-bronze); flex-shrink: 0; margin-top: 2px; }
.tip-content h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; color: var(--text-dark); }
.tip-content p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* FAQ */
.faq-section { background: var(--card-white); }
.faq-list { max-width: 860px; border-top: 1px solid var(--border-color); margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border-color); }
.faq-question { display: flex; justify-content: space-between; align-items: center; gap: 16px; width: 100%; padding: 22px 8px; background: transparent; border: 0; font-size: 16px; font-weight: 600; color: var(--text-dark); text-align: left; transition: color var(--transition); }
.faq-question:hover { color: var(--brand-bronze); }
.faq-icon { position: relative; width: 16px; height: 16px; flex-shrink: 0; }
.faq-icon::before, .faq-icon::after { content: ""; position: absolute; background: var(--brand-green); border-radius: 2px; transition: all var(--transition); }
.faq-icon::before { width: 16px; height: 2px; top: 50%; left: 0; transform: translateY(-50%); }
.faq-icon::after { width: 2px; height: 16px; left: 50%; top: 0; transform: translateX(-50%); }
.faq-item.active .faq-icon::after { transform: translateX(-50%) rotate(90deg); opacity: 0; }
.faq-item.active .faq-question { color: var(--brand-bronze); }
.faq-answer { display: none; padding: 0 8px 24px; font-size: 15px; color: var(--text-muted); line-height: 1.8; }
.faq-item.active .faq-answer { display: block; animation: fadeUp 300ms ease; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* Recommendation */
.recommend-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.recommend-card { display: flex; align-items: center; gap: 20px; padding: 24px; background: var(--card-white); border: 1px solid var(--border-color); border-radius: var(--radius); box-shadow: var(--shadow-light); transition: all var(--transition); }
.recommend-card:hover { border-color: var(--brand-bronze-light); box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.recommend-icon { width: 56px; height: 56px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; background: rgba(217,188,158,0.18); color: var(--brand-green); flex-shrink: 0; }
.recommend-icon svg { width: 26px; height: 26px; }
.recommend-info { flex: 1; }
.recommend-info h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.recommend-info p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }
.recommend-link { display: inline-flex; align-items: center; gap: 4px; font-size: 14px; font-weight: 600; margin-top: 8px; }
.recommend-link .arrow { transition: transform var(--transition); }
.recommend-link:hover .arrow { transform: translateX(4px); }

/* CTA */
.cta-section { background: var(--brand-green-deep); position: relative; overflow: hidden; }
.cta-section::before { content: ""; position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat; opacity: 0.15; }
.cta-inner { position: relative; z-index: 2; display: flex; justify-content: space-between; align-items: center; gap: 40px; flex-wrap: wrap; }
.cta-title { font-size: 30px; line-height: 1.3; color: #F6F4EF; font-weight: 700; margin-bottom: 10px; }
.cta-desc { font-size: 15px; color: rgba(246,244,239,0.75); line-height: 1.7; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.copy-tip { position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%) translateY(80px); background: var(--brand-green-deep); color: #F6F4EF; padding: 12px 24px; border-radius: 999px; font-size: 14px; font-weight: 500; box-shadow: 0 8px 24px rgba(0,0,0,0.2); opacity: 0; transition: all 350ms ease; z-index: 2000; border: 1px solid var(--brand-bronze-light); }
.copy-tip.show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* Footer */
.site-footer { background: var(--brand-green-deep); padding: 64px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(246,244,239,0.1); }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo-mark { display: flex; width: 32px; height: 32px; align-items: center; justify-content: center; border: 1px solid rgba(217,188,158,0.6); border-radius: var(--radius-sm); }
.footer-logo-mark svg { width: 18px; height: 18px; }
.footer-logo-text { font-size: 18px; font-weight: 700; color: #F6F4EF; }
.footer-desc { font-size: 14px; color: rgba(246,244,239,0.65); line-height: 1.7; max-width: 340px; }
.footer-title { font-size: 14px; font-weight: 600; color: #F6F4EF; margin-bottom: 16px; letter-spacing: 0.03em; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: rgba(246,244,239,0.65); transition: all var(--transition); }
.footer-links a:hover { color: var(--brand-bronze); padding-left: 4px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 24px; flex-wrap: wrap; gap: 12px; }
.copyright { font-size: 13px; color: rgba(246,244,239,0.5); }

/* Responsive */
@media (max-width: 992px) {
    .menu-toggle { display: flex; }
    .main-nav { position: fixed; top: 72px; left: 0; width: 100%; background: var(--bg-warm); flex-direction: column; gap: 0; padding: 12px 24px 20px; border-bottom: 1px solid var(--border-color); box-shadow: 0 12px 24px rgba(0,0,0,0.06); transform: translateY(-12px); opacity: 0; visibility: hidden; transition: all 250ms ease; }
    .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
    .nav-link { padding: 14px 4px; border-bottom: 1px solid var(--border-color); font-size: 16px; }
    .nav-link:last-child { border-bottom: 0; }
    .nav-link::after { display: none; }
    .nav-link.active { color: var(--brand-bronze); font-weight: 700; }
    .anchor-grid { grid-template-columns: repeat(2, 1fr); }
    .feature-grid { grid-template-columns: 1fr 1fr; }
    .card-large, .card-col { grid-column: span 2; }
    .card-col { flex-direction: row; gap: 20px; }
    .card-row { grid-column: span 1; }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .recommend-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .hero-title { font-size: 40px; }
}
@media (max-width: 768px) {
    .section { padding: 56px 0; }
    .hero-title { font-size: 32px; }
    .hero-subtitle { font-size: 15px; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-actions .btn-primary, .hero-actions .btn-outline { width: 100%; }
    .anchor-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .anchor-item { padding: 14px 16px; gap: 10px; }
    .anchor-text { font-size: 14px; }
    .feature-grid { grid-template-columns: 1fr; }
    .card-large, .card-col, .card-row { grid-column: span 1; }
    .card-col { flex-direction: column; }
    .card-col .card-img { width: 100%; min-height: 160px; }
    .card-col .card-body { padding: 20px; }
    .card-row { flex-direction: column; align-items: stretch; }
    .card-row .card-img { width: 100%; min-height: 150px; }
    .steps-grid { grid-template-columns: 1fr; }
    .step-item { padding: 28px 20px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .cta-inner { flex-direction: column; align-items: flex-start; }
    .cta-actions { width: 100%; }
    .cta-actions .btn-primary, .cta-actions .btn-outline { flex: 1; }
    .tip-box { flex-direction: column; gap: 12px; padding: 24px; }
    .faq-question { font-size: 15px; padding: 18px 4px; }
    .faq-answer { font-size: 14px; }
    .copy-tip { bottom: 24px; left: 24px; right: 24px; transform: translateY(80px); }
    .copy-tip.show { transform: translateY(0); }
}
@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .hero-title { font-size: 28px; }
    .section-head h2 { font-size: 26px; }
    .anchor-grid { grid-template-columns: 1fr; }
    .btn-primary, .btn-outline { width: 100%; }
    .cta-actions { flex-direction: column; }
}

/* roulang page: category3 */
:root {
  --primary: #16453F;
  --primary-dark: #0C2D28;
  --accent: #B98A5C;
  --accent-light: #D9BC9E;
  --bg: #F6F4EF;
  --card-bg: #FFFFFF;
  --text: #1D2421;
  --text-muted: #6A7470;
  --border: rgba(22, 69, 63, 0.15);
  --border-hover: rgba(185, 138, 92, 0.4);
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(22, 69, 63, 0.08);
  --container-max: 1200px;
  --transition: 250ms ease;
}
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "Inter", "Manrope", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.no-scroll {
  overflow: hidden;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: var(--primary);
  transition: color var(--transition);
}
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid rgba(185, 138, 92, 0.55);
  outline-offset: 2px;
  border-radius: 4px;
}
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 244, 239, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-mark {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent-light);
  border-radius: var(--radius-sm);
  color: var(--primary);
  background: rgba(255, 255, 255, 0.6);
}
.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  padding: 8px 0;
  transition: color var(--transition);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition);
}
.nav-link:hover {
  color: var(--accent);
}
.nav-link.active {
  color: var(--primary);
}
.nav-link.active::after {
  transform: scaleX(1);
}
.nav-toggle {
  display: none;
  background: none;
  border: 0;
  width: 40px;
  height: 40px;
  cursor: pointer;
  position: relative;
  z-index: 110;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--primary);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-primary {
  background: var(--primary);
  color: var(--bg);
}
.btn-primary:hover {
  background: var(--accent);
  color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(22, 69, 63, 0.18);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}
.btn-light {
  background: var(--bg);
  color: var(--primary);
}
.btn-light:hover {
  background: var(--accent);
  color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}
.btn-ghost {
  background: transparent;
  border-color: rgba(246, 244, 239, 0.45);
  color: var(--bg);
}
.btn-ghost:hover {
  border-color: var(--accent-light);
  color: var(--accent-light);
  transform: translateY(-1px);
}
.btn-ghost-dark {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-ghost-dark:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

/* ===== Hero ===== */
.cat-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 130px 0 110px;
  overflow: hidden;
}
.cat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(12, 45, 40, 0.92) 0%, rgba(12, 45, 40, 0.7) 55%, rgba(12, 45, 40, 0.45) 100%);
}
.cat-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 780px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  margin-bottom: 18px;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--accent-light);
  opacity: 0.8;
}
.cat-hero-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.18;
  color: var(--bg);
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}
.cat-hero-desc {
  font-size: 17px;
  color: rgba(246, 244, 239, 0.82);
  max-width: 570px;
  margin-bottom: 34px;
}
.cat-hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-deco {
  position: absolute;
  right: 42px;
  bottom: 36px;
  width: 130px;
  height: 130px;
  pointer-events: none;
  opacity: 0.4;
  z-index: 1;
}

/* ===== Section base ===== */
.section {
  padding: 88px 0;
}
.section-alt {
  background: #FBF9F5;
}
.section-head {
  max-width: 760px;
  margin-bottom: 46px;
}
.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-tag::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--accent);
}
.section-head h2 {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 12px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ===== Catalog / Directory ===== */
.catalog-section {
  padding: 48px 0 36px;
  border-bottom: 1px solid var(--border);
}
.catalog-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 48px;
  border-top: 1px solid var(--border);
  padding-top: 28px;
}
.catalog-link {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  padding: 8px 2px;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.catalog-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent-light);
}
.catalog-num {
  font-family: "Inter", "Manrope", sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

/* ===== Service cards ===== */
.service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.service-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}
.service-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.service-card--feature {
  grid-column: span 2;
}
.service-img {
  overflow: hidden;
  aspect-ratio: 16 / 8;
  background: #EDEAE3;
}
.service-card--feature .service-img {
  aspect-ratio: 24 / 9;
}
.service-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}
.service-card:hover .service-img img {
  transform: scale(1.02);
}
.service-body {
  padding: 26px 28px 28px;
}
.card-tag {
  display: inline-flex;
  align-items: center;
  background: rgba(217, 188, 158, 0.3);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.service-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.4;
}
.service-body p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}
.card-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition), gap var(--transition);
}
.card-more:hover {
  color: var(--accent);
  gap: 10px;
}
.card-more svg {
  width: 14px;
  height: 14px;
}

/* ===== Process Section ===== */
.process-section {
  background: var(--primary);
  color: var(--bg);
}
.process-section .section-tag {
  color: var(--accent-light);
}
.process-section .section-tag::before {
  background: var(--accent-light);
}
.process-section .section-head h2 {
  color: var(--bg);
}
.process-section .section-desc {
  color: rgba(246, 244, 239, 0.7);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  counter-reset: step;
}
.process-step {
  border-top: 1px solid rgba(246, 244, 239, 0.22);
  padding-top: 22px;
  position: relative;
}
.step-num {
  display: block;
  font-family: "Inter", "Manrope", sans-serif;
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent-light);
  margin-bottom: 16px;
  opacity: 0.8;
}
.process-step h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--bg);
  margin-bottom: 8px;
}
.process-step p {
  font-size: 14px;
  color: rgba(246, 244, 239, 0.7);
  line-height: 1.7;
}

/* ===== Scene Section ===== */
.scene-section {
  background: #FBF9F5;
}
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}
.scene-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}
.scene-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.scene-card:nth-child(2) {
  margin-top: 32px;
}
.scene-card:nth-child(3) {
  margin-top: 16px;
}
.scene-num {
  display: block;
  font-family: "Inter", "Manrope", sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 14px;
}
.scene-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.scene-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== Related ===== */
.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.related-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 22px 26px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.related-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}
.related-label {
  display: block;
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}
.related-text p {
  font-size: 14px;
  color: var(--text-muted);
}
.related-icon {
  color: var(--accent);
  flex-shrink: 0;
  transition: transform var(--transition);
}
.related-card:hover .related-icon {
  transform: translateX(4px);
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg);
}
.faq-wrap {
  max-width: 840px;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child {
  border-top: 1px solid var(--border);
}
.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 4px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: color var(--transition);
  background: none;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary:hover {
  color: var(--accent);
}
.faq-item summary::after {
  content: "+";
  font-family: "Inter", sans-serif;
  font-size: 24px;
  font-weight: 400;
  color: var(--accent);
  line-height: 1;
  transition: transform 0.25s ease;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}
.faq-item p {
  padding: 0 4px 22px;
  max-width: 760px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--primary-dark);
  color: var(--bg);
  padding: 72px 0;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-text h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--bg);
}
.cta-text p {
  color: rgba(246, 244, 239, 0.72);
  font-size: 15px;
}
.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(246, 244, 239, 0.8);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand {
  max-width: 360px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.logo-mark--footer {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(217, 188, 158, 0.5);
  border-radius: 4px;
}
.footer-logo-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--bg);
}
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(246, 244, 239, 0.6);
}
.footer-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--bg);
  margin-bottom: 18px;
  letter-spacing: 0.04em;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  display: inline-block;
  color: rgba(246, 244, 239, 0.65);
  font-size: 14px;
  text-decoration: none;
  transition: color var(--transition), transform var(--transition);
}
.footer-links a:hover {
  color: var(--accent-light);
  transform: translateX(2px);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(246, 244, 239, 0.12);
  padding-top: 24px;
  font-size: 13px;
  color: rgba(246, 244, 239, 0.4);
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .nav-toggle {
    display: block;
  }
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px 24px 24px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-110%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s;
    box-shadow: 0 16px 32px rgba(22, 69, 63, 0.08);
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-link {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
    font-size: 16px;
  }
  .nav-link:last-child {
    border-bottom: 0;
  }
  .nav-link::after {
    display: none;
  }
  .process-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px 24px;
  }
  .scene-grid {
    grid-template-columns: 1fr 1fr;
  }
  .scene-card:nth-child(2) {
    margin-top: 0;
  }
  .scene-card:nth-child(3) {
    margin-top: 0;
  }
  .cat-hero-title {
    font-size: 40px;
  }
}
@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }
  .cat-hero {
    padding: 96px 0 84px;
  }
  .cat-hero-title {
    font-size: 34px;
  }
  .cat-hero-desc {
    font-size: 16px;
  }
  .service-grid {
    grid-template-columns: 1fr;
  }
  .service-card--feature {
    grid-column: span 1;
  }
  .service-card--feature .service-img {
    aspect-ratio: 16 / 9;
  }
  .service-body {
    padding: 22px;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .scene-grid {
    grid-template-columns: 1fr;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .related-card:hover {
    transform: translateY(-2px);
  }
  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .cta-actions {
    width: 100%;
  }
  .cta-actions .btn {
    flex: 1;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .section-head h2 {
    font-size: 28px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  .cat-hero-actions {
    flex-direction: column;
  }
  .cat-hero-actions .btn {
    width: 100%;
  }
  .catalog-row {
    gap: 8px 24px;
  }
  .scene-card,
  .related-card {
    padding: 24px;
  }
  .faq-item summary {
    font-size: 15px;
  }
  .cta-actions {
    flex-direction: column;
  }
  .cta-actions .btn {
    width: 100%;
  }
}