/* roulang page: index */
:root {
            --ink-green: #0E2B2A;
            --ink-green-light: #1D3230;
            --ink-green-border: #35524F;
            --sand-gold: #C8A45D;
            --sand-gold-dark: #B8954D;
            --sand-light: #EFE3C8;
            --warm-bg: #F5F1E8;
            --charcoal-bg: #17201F;
            --card-white: #FFFFFF;
            --body-text: #2B2F2E;
            --text-light: #EDE9DF;
            --border-light: #DCE0D7;
            --accent-copper: #C86E3A;
            --radius: 10px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 24px rgba(14, 43, 42, 0.10);
            --shadow-card-hover: 0 16px 36px rgba(14, 43, 42, 0.18);
            --shadow-nav: 0 4px 20px rgba(14, 43, 42, 0.30);
            --transition-base: all 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Source Han Sans SC', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --max-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.75;
            color: var(--body-text);
            background-color: #FFFFFF;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }

        a {
            color: var(--ink-green);
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover,
        a:focus {
            color: var(--sand-gold-dark);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--sand-gold);
            outline-offset: 2px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.35;
            color: var(--ink-green);
            margin-top: 0;
        }

        h1 {
            font-size: clamp(1.75rem, 3.2vw, 2.5rem);
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }

        h2 {
            font-size: clamp(1.5rem, 2.6vw, 2rem);
            letter-spacing: -0.01em;
            margin-bottom: 0.75rem;
        }

        h3 {
            font-size: clamp(1.15rem, 1.8vw, 1.4rem);
            margin-bottom: 0.6rem;
        }

        p {
            margin-bottom: 1rem;
            line-height: 1.8;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .section {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }

        .section-sm {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .section-title {
            text-align: center;
            margin-bottom: 2.5rem;
        }

        .section-title h2 {
            display: inline-block;
            position: relative;
            padding-bottom: 0.75rem;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 56px;
            height: 3px;
            background: var(--sand-gold);
            border-radius: 2px;
        }

        .section-title p {
            color: #5A625E;
            font-size: 0.95rem;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }

        .badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 0.75rem;
            border-radius: 999px;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .badge-gold {
            background: var(--sand-light);
            color: var(--ink-green);
        }

        .badge-dark {
            background: var(--ink-green);
            color: var(--sand-gold);
        }

        .badge-copper {
            background: #F5E0D0;
            color: #8B4513;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 0.8rem 1.8rem;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            line-height: 1.4;
            min-height: 44px;
            letter-spacing: 0.02em;
        }

        .btn-primary {
            background: var(--sand-gold);
            color: var(--ink-green);
            border-color: var(--sand-gold);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--sand-gold-dark);
            border-color: var(--sand-gold-dark);
            color: var(--ink-green);
            box-shadow: inset 0 2px 6px rgba(14, 43, 42, 0.15);
        }

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

        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--ink-green);
            color: var(--text-light);
            border-color: var(--ink-green);
        }

        .btn-light {
            background: #FFFFFF;
            color: var(--ink-green);
            border-color: #FFFFFF;
        }

        .btn-light:hover,
        .btn-light:focus {
            background: var(--sand-light);
            border-color: var(--sand-light);
            color: var(--ink-green);
        }

        .btn-lg {
            padding: 0.95rem 2.2rem;
            font-size: 1.05rem;
        }

        .btn-block {
            display: flex;
            width: 100%;
        }

        /* ========== Header & Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--ink-green);
            box-shadow: var(--shadow-nav);
            border-bottom: 2px solid var(--sand-gold);
        }

        .site-header .top-bar-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 1.5rem;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--sand-gold) !important;
            letter-spacing: 0.04em;
            flex-shrink: 0;
            min-height: 44px;
            line-height: 44px;
        }

        .site-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--sand-gold);
            color: var(--ink-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.95rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .main-nav li {
            margin: 0;
            padding: 0;
        }

        .main-nav a {
            display: block;
            padding: 0.55rem 0.9rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: #EDE9DF;
            border-radius: 6px;
            transition: var(--transition-base);
            white-space: nowrap;
            min-height: 44px;
            line-height: 1.4;
            display: flex;
            align-items: center;
        }

        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--sand-gold);
            background: rgba(200, 164, 93, 0.1);
        }

        .main-nav a.active {
            color: var(--sand-gold);
            border-bottom: 2px solid var(--sand-gold);
            background: transparent;
            font-weight: 600;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 2px solid var(--sand-gold);
            color: var(--sand-gold);
            font-size: 1.4rem;
            padding: 0.4rem 0.7rem;
            border-radius: 6px;
            cursor: pointer;
            min-height: 44px;
            min-width: 44px;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
        }

        .nav-toggle:hover {
            background: rgba(200, 164, 93, 0.15);
        }

        /* Progress steps bar */
        .progress-steps {
            background: rgba(14, 43, 42, 0.95);
            border-top: 1px solid var(--ink-green-border);
            padding: 0.6rem 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .progress-steps-inner {
            display: flex;
            align-items: center;
            gap: 0;
            min-width: max-content;
        }

        .step-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.35rem 0.8rem;
            text-decoration: none;
            color: rgba(237, 233, 223, 0.7);
            transition: var(--transition-base);
            border-radius: 6px;
            cursor: pointer;
            min-height: 44px;
            line-height: 1.3;
        }

        .step-item .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(237, 233, 223, 0.15);
            color: #EDE9DF;
            border: 1px solid rgba(237, 233, 223, 0.3);
            flex-shrink: 0;
            transition: var(--transition-base);
        }

        .step-item .step-name {
            font-size: 0.8rem;
            font-weight: 500;
            white-space: nowrap;
        }

        .step-item:hover,
        .step-item:focus {
            color: var(--sand-gold);
        }

        .step-item.active {
            background: var(--sand-gold);
            color: var(--ink-green);
            font-weight: 600;
        }

        .step-item.active .step-num {
            background: var(--ink-green);
            color: var(--sand-gold);
            border-color: var(--ink-green);
        }

        .step-connector {
            width: 24px;
            height: 2px;
            background: rgba(237, 233, 223, 0.25);
            flex-shrink: 0;
        }

        /* ========== Hero Flash Sale Section ========== */
        .hero-flash {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            background: var(--ink-green);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            overflow: hidden;
        }

        .hero-flash::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(14, 43, 42, 0.92) 0%, rgba(14, 43, 42, 0.65) 50%, rgba(14, 43, 42, 0.85) 100%);
            z-index: 1;
        }

        .hero-flash .container {
            position: relative;
            z-index: 2;
        }

        .flash-ticker {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 1.5rem;
            background: rgba(200, 164, 93, 0.15);
            border: 1px solid rgba(200, 164, 93, 0.4);
            border-radius: var(--radius);
            padding: 0.7rem 1.2rem;
        }

        .flash-ticker .flash-label {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--sand-gold);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            white-space: nowrap;
        }

        .flash-countdown {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: #EDE9DF;
        }

        .flash-countdown .count-num {
            background: var(--sand-gold);
            color: var(--ink-green);
            padding: 0.15rem 0.45rem;
            border-radius: 4px;
            font-size: 0.85rem;
            font-weight: 700;
            min-width: 32px;
            text-align: center;
        }

        .hero-flash-content {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 2.5rem;
            align-items: center;
        }

        .hero-flash-main h1 {
            color: #FFFFFF;
            font-size: clamp(1.8rem, 3.4vw, 2.6rem);
            margin-bottom: 1rem;
            line-height: 1.3;
        }

        .hero-flash-main h1 .gold-text {
            color: var(--sand-gold);
        }

        .hero-flash-main .hero-desc {
            color: #EDE9DF;
            font-size: 1.05rem;
            line-height: 1.8;
            margin-bottom: 1.5rem;
            max-width: 520px;
        }

        .hero-flash-actions {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
        }

        .hero-flash-actions .btn {
            font-size: 0.95rem;
        }

        .hero-flash-card {
            background: var(--card-white);
            border-radius: var(--radius-lg);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
            overflow: hidden;
            border: 2px solid rgba(200, 164, 93, 0.5);
        }

        .hero-flash-card .card-img {
            height: 160px;
            overflow: hidden;
            background: #F5F1E8;
        }

        .hero-flash-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        .hero-flash-card .card-body {
            padding: 1.25rem 1.5rem;
        }

        .hero-flash-card .card-body h3 {
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
            color: var(--ink-green);
        }

        .hero-flash-card .card-body p {
            font-size: 0.85rem;
            color: #5A625E;
            margin-bottom: 0.9rem;
        }

        .hero-flash-card .price-row {
            display: flex;
            align-items: baseline;
            gap: 0.6rem;
            margin-bottom: 1rem;
        }

        .hero-flash-card .price-current {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent-copper);
        }

        .hero-flash-card .price-original {
            font-size: 0.85rem;
            color: #9AA09C;
            text-decoration: line-through;
        }

        .hero-flash-card .btn {
            width: 100%;
            min-height: 44px;
        }

        /* ========== Brand Story Section ========== */
        .brand-story {
            background: var(--warm-bg);
        }

        .brand-story-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }

        .brand-story-text h2 {
            margin-bottom: 0.75rem;
            position: relative;
            padding-bottom: 0.6rem;
        }

        .brand-story-text h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 48px;
            height: 3px;
            background: var(--sand-gold);
            border-radius: 2px;
        }

        .brand-story-text p {
            font-size: 0.95rem;
            color: #3D4642;
            line-height: 1.85;
        }

        .brand-story-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            min-height: 280px;
            background: #E8E3D8;
        }

        .brand-story-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        /* ========== Metrics Dashboard Section ========== */
        .metrics-dashboard {
            background: #FFFFFF;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }

        .metric-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 1.5rem 1.25rem;
            text-align: center;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--sand-gold);
            border-radius: var(--radius) var(--radius) 0 0;
        }

        .metric-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--sand-gold);
            transform: translateY(-3px);
        }

        .metric-card .metric-value {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--ink-green);
            line-height: 1.2;
            margin-bottom: 0.25rem;
        }

        .metric-card .metric-unit {
            font-size: 0.85rem;
            color: #5A625E;
            font-weight: 500;
        }

        .metric-card .metric-label {
            font-size: 0.82rem;
            color: #6B7470;
            margin-top: 0.4rem;
        }

        .metric-card .metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.75rem;
            font-weight: 600;
            color: #3A7D5D;
            margin-top: 0.5rem;
        }

        .metric-card .metric-trend.down {
            color: var(--accent-copper);
        }

        /* ========== Services Matrix Section ========== */
        .services-matrix {
            background: var(--warm-bg);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .service-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 0;
            overflow: hidden;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--sand-gold);
            transform: translateY(-4px);
        }

        .service-card .service-img {
            height: 180px;
            overflow: hidden;
            background: #F0EBE0;
        }

        .service-card .service-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        .service-card .service-body {
            padding: 1.25rem 1.5rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card .service-body h3 {
            font-size: 1.1rem;
            margin-bottom: 0.6rem;
            color: var(--ink-green);
        }

        .service-card .service-body p {
            font-size: 0.88rem;
            color: #5A625E;
            line-height: 1.7;
            margin-bottom: 0.9rem;
            flex: 1;
        }

        .service-card .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }

        .service-card .service-tags .tag {
            font-size: 0.72rem;
            font-weight: 600;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            background: var(--sand-light);
            color: var(--ink-green);
        }

        /* ========== Featured Content Cards ========== */
        .featured-content {
            background: #FFFFFF;
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }

        .featured-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition-base);
            box-shadow: 0 2px 8px rgba(14, 43, 42, 0.05);
        }

        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--sand-gold);
            transform: translateY(-3px);
        }

        .featured-card .featured-img {
            height: 140px;
            overflow: hidden;
            background: #F0EBE0;
        }

        .featured-card .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        .featured-card .featured-body {
            padding: 1rem 1.2rem 1.2rem;
        }

        .featured-card .featured-body h4 {
            font-size: 0.95rem;
            margin-bottom: 0.4rem;
            color: var(--ink-green);
            font-weight: 600;
        }

        .featured-card .featured-body p {
            font-size: 0.8rem;
            color: #6B7470;
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== Result Comparison Section ========== */
        .result-compare {
            background: var(--ink-green);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
        }

        .result-compare .section-title h2 {
            color: #FFFFFF;
        }

        .result-compare .section-title p {
            color: rgba(237, 233, 223, 0.75);
        }

        .compare-grid {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 0;
            align-items: stretch;
            max-width: 900px;
            margin: 0 auto;
        }

        .compare-panel {
            background: rgba(29, 50, 48, 0.9);
            border: 1px solid var(--ink-green-border);
            border-radius: var(--radius);
            padding: 1.75rem 1.5rem;
            transition: var(--transition-base);
        }

        .compare-panel.featured {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--sand-gold);
            box-shadow: 0 0 40px rgba(200, 164, 93, 0.2);
        }

        .compare-panel h3 {
            color: var(--sand-gold);
            font-size: 1.15rem;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .compare-panel .compare-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .compare-panel .compare-list li {
            padding: 0.55rem 0;
            font-size: 0.88rem;
            color: #EDE9DF;
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
            line-height: 1.6;
            border-bottom: 1px solid rgba(53, 82, 79, 0.5);
        }

        .compare-panel .compare-list li:last-child {
            border-bottom: none;
        }

        .compare-panel .compare-list li i {
            color: var(--sand-gold);
            font-size: 0.8rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .compare-vs {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 0.8rem;
        }

        .compare-vs span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--sand-gold);
            color: var(--ink-green);
            font-weight: 700;
            font-size: 0.85rem;
            box-shadow: 0 4px 16px rgba(200, 164, 93, 0.4);
        }

        /* ========== Testimonials Section ========== */
        .testimonials {
            background: var(--warm-bg);
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .testimonial-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--sand-gold);
        }

        .testimonial-card .quote-icon {
            color: var(--sand-gold);
            font-size: 1.5rem;
            margin-bottom: 0.5rem;
        }

        .testimonial-card .quote-text {
            font-size: 0.88rem;
            color: #3D4642;
            line-height: 1.75;
            margin-bottom: 1rem;
        }

        .testimonial-card .quote-author {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .testimonial-card .quote-author .avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--ink-green);
            color: var(--sand-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .testimonial-card .quote-author .author-info {
            font-size: 0.8rem;
            color: #5A625E;
        }

        /* ========== News Section ========== */
        .news-section {
            background: #FFFFFF;
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr 0.6fr;
            gap: 2rem;
        }

        .news-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .news-list li {
            padding: 0.9rem 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: flex-start;
            gap: 0.8rem;
            transition: var(--transition-base);
        }

        .news-list li:hover {
            background: #FAF8F2;
            padding-left: 0.5rem;
            border-radius: 4px;
        }

        .news-list li:last-child {
            border-bottom: none;
        }

        .news-list .news-date {
            font-size: 0.75rem;
            color: #9AA09C;
            white-space: nowrap;
            min-width: 64px;
            padding-top: 0.15rem;
            flex-shrink: 0;
        }

        .news-list .news-content {
            flex: 1;
        }

        .news-list .news-content h4 {
            font-size: 0.92rem;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: var(--ink-green);
            line-height: 1.4;
        }

        .news-list .news-content h4 a {
            color: var(--ink-green);
        }

        .news-list .news-content h4 a:hover {
            color: var(--sand-gold-dark);
        }

        .news-list .news-content p {
            font-size: 0.82rem;
            color: #6B7470;
            margin-bottom: 0;
            line-height: 1.65;
        }

        .news-sidebar {
            background: var(--warm-bg);
            border-radius: var(--radius);
            padding: 1.5rem;
            border: 1px solid var(--border-light);
            height: fit-content;
        }

        .news-sidebar h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            color: var(--ink-green);
            border-bottom: 2px solid var(--sand-gold);
            padding-bottom: 0.5rem;
        }

        .news-sidebar ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .news-sidebar ul li {
            padding: 0.5rem 0;
            font-size: 0.82rem;
            border-bottom: 1px solid rgba(220, 224, 215, 0.6);
        }

        .news-sidebar ul li:last-child {
            border-bottom: none;
        }

        .news-sidebar ul li a {
            color: #3D4642;
            display: block;
            line-height: 1.5;
        }

        .news-sidebar ul li a:hover {
            color: var(--sand-gold-dark);
        }

        /* ========== Partners Capabilities ========== */
        .partners-section {
            background: var(--warm-bg);
        }

        .partners-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
        }

        .partner-capability {
            display: flex;
            align-items: flex-start;
            gap: 0.8rem;
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 1.1rem 1.2rem;
            transition: var(--transition-base);
        }

        .partner-capability:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--sand-gold);
        }

        .partner-capability .cap-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--ink-green);
            color: var(--sand-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .partner-capability .cap-info h4 {
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 0.25rem;
            color: var(--ink-green);
        }

        .partner-capability .cap-info p {
            font-size: 0.8rem;
            color: #6B7470;
            margin-bottom: 0;
            line-height: 1.55;
        }

        /* ========== FAQ Section ========== */
        .faq-section {
            background: #FFFFFF;
        }

        .faq-layout {
            display: grid;
            grid-template-columns: 0.35fr 0.65fr;
            gap: 2.5rem;
            margin-top: 2rem;
        }

        .faq-intro h3 {
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
        }

        .faq-intro p {
            font-size: 0.88rem;
            color: #5A625E;
        }

        .faq-accordion .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-accordion .faq-item.open {
            border-color: var(--sand-gold);
            box-shadow: 0 4px 16px rgba(14, 43, 42, 0.08);
        }

        .faq-accordion .faq-question {
            width: 100%;
            text-align: left;
            background: #FAF8F2;
            border: none;
            padding: 1rem 1.2rem;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--ink-green);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem;
            min-height: 44px;
            transition: var(--transition-base);
            letter-spacing: 0.01em;
        }

        .faq-accordion .faq-question:hover {
            background: var(--sand-light);
        }

        .faq-accordion .faq-question .faq-icon {
            font-size: 1rem;
            color: var(--sand-gold-dark);
            flex-shrink: 0;
            transition: var(--transition-base);
        }

        .faq-accordion .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-accordion .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease-in-out;
            background: #FFFFFF;
            padding: 0 1.2rem;
        }

        .faq-accordion .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 1.2rem 1rem;
        }

        .faq-accordion .faq-answer p {
            font-size: 0.86rem;
            color: #4A524E;
            line-height: 1.75;
            margin-bottom: 0;
            padding-top: 0.8rem;
        }

        /* ========== CTA Form Section ========== */
        .cta-form-section {
            background: linear-gradient(145deg, var(--ink-green) 0%, #0A201F 60%, #1D3230 100%);
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }

        .cta-form-wrapper {
            max-width: 760px;
            margin: 0 auto;
            background: rgba(29, 50, 48, 0.85);
            border: 1px solid rgba(200, 164, 93, 0.35);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
        }

        .cta-form-wrapper h2 {
            color: #FFFFFF;
            text-align: center;
            margin-bottom: 0.5rem;
        }

        .cta-form-wrapper .cta-desc {
            color: rgba(237, 233, 223, 0.8);
            text-align: center;
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
        }

        .cta-form .form-group {
            margin-bottom: 1rem;
            position: relative;
        }

        .cta-form .form-group input,
        .cta-form .form-group select {
            width: 100%;
            min-height: 48px;
            padding: 0.7rem 1rem;
            font-size: 0.92rem;
            font-family: var(--font-sans);
            border: 1px solid rgba(237, 233, 223, 0.25);
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.08);
            color: #EDE9DF;
            transition: var(--transition-base);
            letter-spacing: 0.02em;
        }

        .cta-form .form-group input::placeholder,
        .cta-form .form-group select::placeholder {
            color: rgba(237, 233, 223, 0.5);
        }

        .cta-form .form-group input:focus,
        .cta-form .form-group select:focus {
            border-color: var(--sand-gold);
            box-shadow: 0 0 0 3px rgba(200, 164, 93, 0.2);
            outline: none;
            background: rgba(255, 255, 255, 0.12);
        }

        .cta-form .form-group select option {
            color: var(--body-text);
            background: #FFFFFF;
        }

        .cta-form .btn-primary {
            width: 100%;
            min-height: 48px;
            font-size: 1rem;
        }

        .cta-form-note {
            text-align: center;
            font-size: 0.75rem;
            color: rgba(237, 233, 223, 0.55);
            margin-top: 0.75rem;
            margin-bottom: 0;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--ink-green);
            border-top: 2px solid var(--sand-gold);
            padding: 3rem 0 2rem;
            color: #EDE9DF;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 1fr 0.8fr;
            gap: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid var(--ink-green-border);
        }

        .footer-brand .site-logo {
            font-size: 1.2rem;
            margin-bottom: 0.8rem;
        }

        .footer-brand p {
            font-size: 0.82rem;
            color: rgba(237, 233, 223, 0.7);
            line-height: 1.7;
        }

        .footer-col h4 {
            color: var(--sand-gold);
            font-size: 0.9rem;
            margin-bottom: 0.9rem;
            font-weight: 700;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.45rem;
        }

        .footer-col ul li a {
            color: rgba(237, 233, 223, 0.75);
            font-size: 0.82rem;
            transition: var(--transition-base);
            display: inline-block;
            line-height: 1.5;
        }

        .footer-col ul li a:hover {
            color: var(--sand-gold);
        }

        .footer-bottom {
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem;
            font-size: 0.78rem;
            color: rgba(237, 233, 223, 0.55);
        }

        .footer-bottom a {
            color: rgba(237, 233, 223, 0.7);
            font-size: 0.78rem;
        }

        .footer-bottom a:hover {
            color: var(--sand-gold);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            :root {
                --spacing-section: 64px;
            }

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

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

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

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

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

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

        @media (max-width: 768px) {
            :root {
                --spacing-section: 48px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--ink-green);
                flex-direction: column;
                padding: 0.75rem 1.25rem;
                border-top: 1px solid var(--ink-green-border);
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
            }

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

            .main-nav a {
                width: 100%;
                padding: 0.75rem 0;
                font-size: 0.9rem;
                border-bottom: 1px solid rgba(53, 82, 79, 0.4);
                border-radius: 0;
            }

            .main-nav li:last-child a {
                border-bottom: none;
            }

            .main-nav a.active {
                border-bottom: 1px solid var(--sand-gold);
            }

            .hero-flash-content {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .brand-story-content {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .compare-grid {
                grid-template-columns: 1fr;
                gap: 0.8rem;
            }

            .compare-vs {
                padding: 0.4rem 0;
            }

            .news-layout {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .faq-layout {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: 1fr;
            }

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

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

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

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

            .hero-flash-actions .btn {
                width: 100%;
                min-height: 48px;
            }

            .flash-ticker {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.4rem;
            }
        }

/* roulang page: category2 */
:root {
            --ink-green: #0E2B2A;
            --ink-green-light: #1D3230;
            --ink-green-border: #35524F;
            --sand-gold: #C8A45D;
            --sand-gold-dark: #B8954D;
            --sand-light: #EFE3C8;
            --warm-bg: #F5F1E8;
            --charcoal-bg: #17201F;
            --card-white: #FFFFFF;
            --body-text: #2B2F2E;
            --text-light: #EDE9DF;
            --border-light: #DCE0D7;
            --accent-copper: #C86E3A;
            --radius: 10px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 24px rgba(14, 43, 42, 0.10);
            --shadow-card-hover: 0 16px 36px rgba(14, 43, 42, 0.18);
            --shadow-nav: 0 4px 20px rgba(14, 43, 42, 0.30);
            --transition-base: all 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Source Han Sans SC', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --spacing-section: 72px;
            --spacing-section-mobile: 48px;
            --max-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.75;
            color: var(--body-text);
            background-color: #FFFFFF;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }

        a {
            color: var(--ink-green);
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover,
        a:focus {
            color: var(--sand-gold-dark);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--sand-gold);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .section {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }

        .section-sm {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .section-title {
            text-align: center;
            margin-bottom: 2.5rem;
        }

        .section-title h2 {
            display: inline-block;
            position: relative;
            padding-bottom: 0.75rem;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--ink-green);
            margin-bottom: 0.5rem;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 56px;
            height: 3px;
            background: var(--sand-gold);
            border-radius: 2px;
        }

        .section-title p {
            color: #5A625E;
            font-size: 0.95rem;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
            margin-top: 0.75rem;
        }

        .badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 0.75rem;
            border-radius: 999px;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .badge-gold {
            background: var(--sand-light);
            color: var(--ink-green);
        }

        .badge-dark {
            background: var(--ink-green);
            color: var(--sand-gold);
        }

        .badge-copper {
            background: #F5E0D0;
            color: #8B4513;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 0.8rem 1.8rem;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            line-height: 1.4;
            min-height: 44px;
            letter-spacing: 0.02em;
        }

        .btn-primary {
            background: var(--sand-gold);
            color: var(--ink-green);
            border-color: var(--sand-gold);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--sand-gold-dark);
            border-color: var(--sand-gold-dark);
            color: var(--ink-green);
            box-shadow: inset 0 2px 6px rgba(14, 43, 42, 0.15);
        }

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

        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--ink-green);
            color: var(--text-light);
            border-color: var(--ink-green);
        }

        .btn-light {
            background: #FFFFFF;
            color: var(--ink-green);
            border-color: #FFFFFF;
        }

        .btn-light:hover,
        .btn-light:focus {
            background: var(--sand-light);
            border-color: var(--sand-light);
            color: var(--ink-green);
        }

        .btn-lg {
            padding: 0.95rem 2.2rem;
            font-size: 1.05rem;
        }

        .btn-block {
            display: flex;
            width: 100%;
        }

        /* ========== Header & Navigation ========== */
        .site-header {
            background: var(--ink-green);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-nav);
        }

        .top-bar-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.85rem 0;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--sand-gold);
            text-decoration: none;
            white-space: nowrap;
        }

        .site-logo:hover,
        .site-logo:focus {
            color: var(--sand-gold);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--sand-gold);
            color: var(--ink-green);
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 700;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .main-nav li {
            margin: 0;
        }

        .main-nav a {
            display: inline-block;
            color: var(--text-light);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 0.5rem 0.9rem;
            border-radius: 6px;
            border-bottom: 2px solid transparent;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--sand-gold);
            border-bottom-color: var(--sand-gold);
            background: rgba(200, 164, 93, 0.08);
        }

        .main-nav a.active {
            color: var(--sand-gold);
            border-bottom-color: var(--sand-gold);
            font-weight: 600;
            background: rgba(200, 164, 93, 0.12);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--sand-gold);
            color: var(--sand-gold);
            font-size: 1.3rem;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
        }

        .nav-toggle:hover,
        .nav-toggle:focus {
            background: rgba(200, 164, 93, 0.15);
            border-color: var(--sand-gold);
            color: var(--sand-gold);
        }

        /* Progress Steps */
        .progress-steps {
            background: rgba(14, 43, 42, 0.85);
            border-top: 1px solid var(--ink-green-border);
            padding: 0.65rem 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .progress-steps-inner {
            display: flex;
            align-items: center;
            gap: 0.3rem;
            min-width: max-content;
        }

        .step-item {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            color: rgba(237, 233, 223, 0.7);
            font-size: 0.82rem;
            font-weight: 500;
            padding: 0.35rem 0.65rem;
            border-radius: 6px;
            transition: var(--transition-base);
            white-space: nowrap;
            text-decoration: none;
        }

        .step-item:hover,
        .step-item:focus {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
        }

        .step-item.active {
            background: var(--sand-gold);
            color: var(--ink-green);
            font-weight: 600;
        }

        .step-num {
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            background: rgba(255, 255, 255, 0.12);
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
        }

        .step-item.active .step-num {
            background: rgba(14, 43, 42, 0.2);
        }

        .step-connector {
            display: inline-block;
            width: 24px;
            height: 1px;
            background: var(--ink-green-border);
            flex-shrink: 0;
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-bar {
            background: var(--warm-bg);
            border-bottom: 1px solid var(--border-light);
            padding: 0.8rem 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: #5A625E;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .breadcrumb li {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            margin: 0;
        }

        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: #9AA29E;
            margin: 0 0.2rem;
        }

        .breadcrumb a {
            color: var(--ink-green);
            font-weight: 500;
        }

        .breadcrumb a:hover,
        .breadcrumb a:focus {
            color: var(--sand-gold-dark);
        }

        .breadcrumb .current {
            color: var(--sand-gold-dark);
            font-weight: 600;
        }

        /* ========== Category Hero ========== */
        .category-hero {
            background: linear-gradient(135deg, var(--ink-green) 0%, #143A38 50%, #0E2B2A 100%);
            color: var(--text-light);
            padding: 4rem 0 3rem;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -15%;
            width: 55%;
            height: 180%;
            background: radial-gradient(circle at center, rgba(200, 164, 93, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: 5%;
            width: 40%;
            height: 140%;
            background: radial-gradient(circle at center, rgba(200, 110, 58, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero-inner {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 2.5rem;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .category-hero h1 {
            color: #FFFFFF;
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
        }

        .category-hero h1 .highlight {
            color: var(--sand-gold);
            border-bottom: 2px solid var(--sand-gold);
            padding-bottom: 0.15rem;
        }

        .category-hero-desc {
            font-size: 1rem;
            color: rgba(237, 233, 223, 0.85);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 1.5rem;
        }

        .category-hero-actions {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
        }

        .category-hero-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
            border: 1px solid var(--ink-green-border);
            background: var(--ink-green-light);
            min-height: 280px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .category-hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        /* ========== Pain Point Topics ========== */
        .topics-section {
            background: #FFFFFF;
        }

        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .topic-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 1.75rem 1.5rem;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .topic-card:hover,
        .topic-card:focus-within {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--sand-gold);
            transform: translateY(-3px);
        }

        .topic-icon {
            width: 48px;
            height: 48px;
            background: var(--sand-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--ink-green);
            font-size: 1.3rem;
            flex-shrink: 0;
        }

        .topic-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--ink-green);
            margin: 0;
            line-height: 1.4;
        }

        .topic-card p {
            font-size: 0.9rem;
            color: #5A625E;
            line-height: 1.75;
            margin: 0;
            flex-grow: 1;
        }

        .topic-tag {
            font-size: 0.75rem;
            color: var(--accent-copper);
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        /* ========== Steps Guide ========== */
        .steps-section {
            background: var(--warm-bg);
        }

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

        .step-guide-card {
            display: grid;
            grid-template-columns: auto 1fr;
            gap: 1.25rem;
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 1.5rem 1.75rem;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            counter-increment: step-counter;
        }

        .step-guide-card:hover,
        .step-guide-card:focus-within {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--sand-gold);
        }

        .step-guide-num {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            background: var(--ink-green);
            color: var(--sand-gold);
            border-radius: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .step-guide-content h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--ink-green);
            margin: 0 0 0.4rem;
        }

        .step-guide-content p {
            font-size: 0.9rem;
            color: #5A625E;
            line-height: 1.75;
            margin: 0;
        }

        /* ========== Related Cards ========== */
        .related-section {
            background: #FFFFFF;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .related-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover,
        .related-card:focus-within {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--sand-gold);
            transform: translateY(-3px);
        }

        .related-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--ink-green-light);
        }

        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: var(--transition-base);
        }

        .related-card:hover .related-card-img img {
            transform: scale(1.04);
        }

        .related-card-body {
            padding: 1.3rem 1.4rem 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
            flex-grow: 1;
        }

        .related-card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--ink-green);
            margin: 0;
            line-height: 1.4;
        }

        .related-card-body p {
            font-size: 0.88rem;
            color: #5A625E;
            line-height: 1.7;
            margin: 0;
            flex-grow: 1;
        }

        .related-card-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--sand-gold-dark);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            margin-top: 0.3rem;
        }

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

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--charcoal-bg);
            color: var(--text-light);
        }

        .faq-section .section-title h2 {
            color: #FFFFFF;
        }

        .faq-section .section-title p {
            color: rgba(237, 233, 223, 0.7);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .faq-item {
            background: var(--ink-green-light);
            border: 1px solid var(--ink-green-border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover,
        .faq-item:focus-within {
            border-color: var(--sand-gold);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.1rem 1.4rem;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: #FFFFFF;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition-base);
            min-height: 44px;
        }

        .faq-question:hover,
        .faq-question:focus {
            color: var(--sand-gold);
        }

        .faq-toggle-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(200, 164, 93, 0.15);
            border-radius: 50%;
            color: var(--sand-gold);
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

        .faq-item.open .faq-toggle-icon {
            transform: rotate(45deg);
            background: var(--sand-gold);
            color: var(--ink-green);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), padding 0.3s ease;
            padding: 0 1.4rem;
            color: rgba(237, 233, 223, 0.8);
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 1.4rem 1.25rem;
        }

        /* ========== CTA Form ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--ink-green) 0%, #1A403E 60%, #0E2B2A 100%);
            color: var(--text-light);
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 80%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(200, 164, 93, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-wrapper {
            position: relative;
            z-index: 1;
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-wrapper h2 {
            color: #FFFFFF;
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }

        .cta-wrapper p {
            color: rgba(237, 233, 223, 0.75);
            font-size: 0.95rem;
            max-width: 560px;
            margin: 0 auto 2rem;
        }

        .cta-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            text-align: left;
        }

        .form-field {
            display: flex;
            flex-direction: column;
            gap: 0.3rem;
        }

        .form-field.full {
            grid-column: 1 / -1;
        }

        .form-field label {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--sand-gold);
        }

        .form-field input,
        .form-field select,
        .form-field textarea {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--ink-green-border);
            border-radius: 8px;
            padding: 0.75rem 1rem;
            font-size: 0.92rem;
            color: var(--text-light);
            font-family: var(--font-sans);
            transition: var(--transition-base);
            min-height: 44px;
            width: 100%;
        }

        .form-field input::placeholder,
        .form-field textarea::placeholder {
            color: rgba(237, 233, 223, 0.45);
        }

        .form-field input:focus,
        .form-field select:focus,
        .form-field textarea:focus {
            border-color: var(--sand-gold);
            background: rgba(255, 255, 255, 0.12);
            outline: none;
            box-shadow: 0 0 0 3px rgba(200, 164, 93, 0.15);
        }

        .form-field textarea {
            resize: vertical;
            min-height: 100px;
        }

        .cta-form .btn {
            grid-column: 1 / -1;
            justify-self: center;
            min-width: 220px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--ink-green);
            color: rgba(237, 233, 223, 0.75);
            padding: 3rem 0 1.5rem;
            border-top: 3px solid var(--sand-gold);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid var(--ink-green-border);
            margin-bottom: 1.5rem;
        }

        .footer-brand .site-logo {
            margin-bottom: 0.8rem;
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.8;
            color: rgba(237, 233, 223, 0.65);
            max-width: 280px;
            margin: 0.5rem 0 0;
        }

        .footer-col h4 {
            color: var(--sand-gold);
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-col ul li {
            margin: 0;
        }

        .footer-col ul a {
            color: rgba(237, 233, 223, 0.7);
            font-size: 0.85rem;
            transition: var(--transition-base);
        }

        .footer-col ul a:hover,
        .footer-col ul a:focus {
            color: var(--sand-gold);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            justify-content: space-between;
            align-items: center;
            font-size: 0.78rem;
            color: rgba(237, 233, 223, 0.55);
        }

        .footer-bottom a {
            color: rgba(237, 233, 223, 0.6);
        }

        .footer-bottom a:hover,
        .footer-bottom a:focus {
            color: var(--sand-gold);
        }

        /* ========== Responsive ========== */
        @media screen and (max-width: 1024px) {
            .topics-grid,
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .category-hero-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .category-hero-image {
                min-height: 220px;
            }

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

        @media screen and (max-width: 768px) {
            :root {
                --spacing-section: 48px;
            }

            .top-bar-row {
                flex-wrap: wrap;
            }

            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--ink-green-light);
                border-radius: 8px;
                padding: 0.5rem;
                gap: 0.15rem;
                margin-top: 0.5rem;
                border: 1px solid var(--ink-green-border);
            }

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

            .main-nav a {
                width: 100%;
                padding: 0.65rem 1rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                border-radius: 6px;
            }

            .main-nav a.active {
                border-bottom-color: var(--sand-gold);
            }

            .nav-toggle {
                display: flex;
            }

            .progress-steps {
                padding: 0.5rem 0;
            }

            .step-item {
                font-size: 0.75rem;
                padding: 0.3rem 0.5rem;
            }

            .step-connector {
                width: 14px;
            }

            .category-hero {
                padding: 2.5rem 0 2rem;
            }

            .category-hero h1 {
                font-size: 1.7rem;
            }

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

            .step-guide-card {
                grid-template-columns: 1fr;
                gap: 0.75rem;
                padding: 1.2rem 1.3rem;
            }

            .step-guide-num {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }

            .cta-form {
                grid-template-columns: 1fr;
            }

            .cta-form .form-field.full,
            .cta-form .btn {
                grid-column: 1;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.4rem;
            }

            .section-title h2 {
                font-size: 1.5rem;
            }
        }

        @media screen and (max-width: 520px) {
            .container {
                padding-left: 0.9rem;
                padding-right: 0.9rem;
            }

            .category-hero h1 {
                font-size: 1.45rem;
            }

            .category-hero-desc {
                font-size: 0.9rem;
            }

            .category-hero-actions {
                flex-direction: column;
                width: 100%;
            }

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

            .category-hero-image {
                min-height: 180px;
            }

            .topic-card {
                padding: 1.3rem 1.1rem;
            }

            .step-guide-card {
                padding: 1rem 1.1rem;
            }

            .cta-wrapper h2 {
                font-size: 1.4rem;
            }
        }

/* roulang page: category1 */
:root {
            --ink-green: #0E2B2A;
            --ink-green-light: #1D3230;
            --ink-green-border: #35524F;
            --sand-gold: #C8A45D;
            --sand-gold-dark: #B8954D;
            --sand-light: #EFE3C8;
            --warm-bg: #F5F1E8;
            --charcoal-bg: #17201F;
            --card-white: #FFFFFF;
            --body-text: #2B2F2E;
            --text-light: #EDE9DF;
            --border-light: #DCE0D7;
            --accent-copper: #C86E3A;
            --radius: 10px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 24px rgba(14, 43, 42, 0.10);
            --shadow-card-hover: 0 16px 36px rgba(14, 43, 42, 0.18);
            --shadow-nav: 0 4px 20px rgba(14, 43, 42, 0.30);
            --transition-base: all 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Source Han Sans SC', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --max-width: 1200px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.75;
            color: var(--body-text);
            background-color: #FFFFFF;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        a {
            color: var(--ink-green);
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:hover,
        a:focus {
            color: var(--sand-gold-dark);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--sand-gold);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        .section {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }
        .section-sm {
            padding-top: 56px;
            padding-bottom: 56px;
        }
        .section-title {
            text-align: center;
            margin-bottom: 2.5rem;
        }
        .section-title h2 {
            display: inline-block;
            position: relative;
            padding-bottom: 0.75rem;
            color: var(--ink-green);
        }
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 56px;
            height: 3px;
            background: var(--sand-gold);
            border-radius: 2px;
        }
        .section-title p {
            color: #5A625E;
            font-size: 0.95rem;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }
        .badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 0.75rem;
            border-radius: 999px;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }
        .badge-gold {
            background: var(--sand-light);
            color: var(--ink-green);
        }
        .badge-dark {
            background: var(--ink-green);
            color: var(--sand-gold);
        }
        .badge-copper {
            background: #F5E0D0;
            color: #8B4513;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 0.8rem 1.8rem;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            line-height: 1.4;
            min-height: 44px;
            letter-spacing: 0.02em;
        }
        .btn-primary {
            background: var(--sand-gold);
            color: var(--ink-green);
            border-color: var(--sand-gold);
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--sand-gold-dark);
            border-color: var(--sand-gold-dark);
            color: var(--ink-green);
            box-shadow: inset 0 2px 6px rgba(14, 43, 42, 0.15);
        }
        .btn-secondary {
            background: transparent;
            color: var(--ink-green);
            border-color: var(--ink-green);
        }
        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--ink-green);
            color: var(--text-light);
            border-color: var(--ink-green);
        }
        .btn-light {
            background: #FFFFFF;
            color: var(--ink-green);
            border-color: #FFFFFF;
        }
        .btn-light:hover,
        .btn-light:focus {
            background: var(--sand-light);
            border-color: var(--sand-light);
            color: var(--ink-green);
        }
        .btn-lg {
            padding: 0.95rem 2.2rem;
            font-size: 1.05rem;
        }
        .btn-block {
            display: flex;
            width: 100%;
        }

        /* Header & Navigation */
        .site-header {
            background: var(--ink-green);
            position: sticky;
            top: 0;
            z-index: 999;
            box-shadow: var(--shadow-nav);
            width: 100%;
        }
        .top-bar-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.85rem 0;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--sand-gold);
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            white-space: nowrap;
        }
        .site-logo:hover,
        .site-logo:focus {
            color: var(--sand-gold);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--sand-gold);
            color: var(--ink-green);
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            font-weight: 700;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--ink-green-border);
            color: var(--text-light);
            font-size: 1.3rem;
            padding: 0.5rem 0.9rem;
            border-radius: var(--radius-sm);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            transition: var(--transition-base);
        }
        .nav-toggle:hover {
            background: var(--ink-green-light);
            border-color: var(--sand-gold);
            color: var(--sand-gold);
        }
        .main-nav {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.35rem;
            flex-wrap: wrap;
        }
        .main-nav li {
            margin: 0;
        }
        .main-nav a {
            display: inline-block;
            padding: 0.55rem 0.95rem;
            color: var(--text-light);
            font-size: 0.92rem;
            font-weight: 500;
            border-bottom: 2px solid transparent;
            border-radius: 4px 4px 0 0;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--sand-gold);
            border-bottom-color: var(--sand-gold);
        }
        .main-nav a.active {
            color: var(--sand-gold);
            border-bottom-color: var(--sand-gold);
            font-weight: 600;
        }

        /* Progress Steps Navigation */
        .progress-steps {
            background: var(--ink-green-light);
            border-top: 1px solid var(--ink-green-border);
            padding: 0.7rem 0;
        }
        .progress-steps-inner {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--ink-green-border) transparent;
        }
        .progress-steps-inner::-webkit-scrollbar {
            height: 4px;
        }
        .progress-steps-inner::-webkit-scrollbar-thumb {
            background: var(--ink-green-border);
            border-radius: 2px;
        }
        .step-item {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 0.9rem;
            border-radius: var(--radius-sm);
            color: rgba(237, 233, 223, 0.65);
            font-size: 0.82rem;
            font-weight: 500;
            white-space: nowrap;
            transition: var(--transition-base);
            border: 1px solid transparent;
        }
        .step-item:hover,
        .step-item:focus {
            color: var(--sand-gold);
            border-color: var(--ink-green-border);
        }
        .step-item.active {
            background: var(--sand-gold);
            color: var(--ink-green);
            font-weight: 600;
            border-color: var(--sand-gold);
        }
        .step-num {
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            min-width: 24px;
        }
        .step-connector {
            display: inline-block;
            width: 24px;
            height: 1px;
            background: var(--ink-green-border);
            flex-shrink: 0;
        }

        /* Breadcrumb */
        .breadcrumb-wrapper {
            background: var(--warm-bg);
            border-bottom: 1px solid var(--border-light);
            padding: 0.75rem 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: #5A625E;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .breadcrumb li {
            margin: 0;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .breadcrumb a {
            color: var(--ink-green);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--sand-gold-dark);
        }
        .breadcrumb .separator {
            color: #A0A5A1;
            font-size: 0.75rem;
        }
        .breadcrumb .current {
            color: var(--ink-green);
            font-weight: 600;
        }

        /* Category Hero */
        .category-hero {
            background: linear-gradient(135deg, var(--ink-green) 0%, var(--ink-green-light) 60%, #1A3A38 100%);
            padding: 3.5rem 0 3rem;
            position: relative;
            overflow: hidden;
            color: var(--text-light);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 164, 93, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: 5%;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 110, 58, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero-inner {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 2.5rem;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            color: #FFFFFF;
            font-size: 2.2rem;
            line-height: 1.3;
            margin-bottom: 1rem;
            font-weight: 700;
        }
        .category-hero h1 .gold {
            color: var(--sand-gold);
        }
        .category-hero .hero-desc {
            color: rgba(237, 233, 223, 0.85);
            font-size: 1.03rem;
            line-height: 1.8;
            margin-bottom: 1.5rem;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .hero-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 20px 48px rgba(0, 0, 0, 0.35);
            border: 2px solid var(--ink-green-border);
        }
        .hero-image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        /* Sidebar + Main Layout */
        .page-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 2.5rem;
            align-items: start;
            padding-top: 2.5rem;
            padding-bottom: 2.5rem;
        }
        .page-sidebar {
            position: sticky;
            top: 160px;
        }
        .sidebar-nav {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 1.25rem;
        }
        .sidebar-nav h3 {
            font-size: 1rem;
            color: var(--ink-green);
            font-weight: 700;
            margin-bottom: 0.85rem;
            padding-bottom: 0.6rem;
            border-bottom: 2px solid var(--sand-light);
        }
        .sidebar-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-nav li {
            margin-bottom: 0.35rem;
        }
        .sidebar-nav a {
            display: block;
            padding: 0.5rem 0.75rem;
            border-radius: var(--radius-sm);
            font-size: 0.88rem;
            color: var(--body-text);
            border-left: 3px solid transparent;
            transition: var(--transition-base);
        }
        .sidebar-nav a:hover,
        .sidebar-nav a:focus {
            background: var(--warm-bg);
            color: var(--ink-green);
            border-left-color: var(--sand-gold);
        }
        .sidebar-nav a.active {
            background: var(--sand-light);
            color: var(--ink-green);
            border-left-color: var(--sand-gold);
            font-weight: 600;
        }
        .sidebar-cta {
            margin-top: 1.25rem;
            background: var(--ink-green);
            border-radius: var(--radius);
            padding: 1.25rem;
            color: var(--text-light);
            text-align: center;
        }
        .sidebar-cta h4 {
            color: var(--sand-gold);
            font-size: 0.95rem;
            margin-bottom: 0.5rem;
            font-weight: 700;
        }
        .sidebar-cta p {
            font-size: 0.82rem;
            color: rgba(237, 233, 223, 0.8);
            margin-bottom: 0.85rem;
        }
        .sidebar-cta .btn {
            font-size: 0.82rem;
            padding: 0.55rem 1.2rem;
        }

        /* Sub-category Tiles */
        .sub-tiles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
        }
        .sub-tile {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 1.5rem 1.25rem;
            text-align: center;
            transition: var(--transition-base);
        }
        .sub-tile:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--sand-gold);
            transform: translateY(-3px);
            box-shadow: 0 16px 36px rgba(14, 43, 42, 0.18), 0 0 0 2px var(--sand-gold);
        }
        .sub-tile-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            background: var(--sand-light);
            color: var(--ink-green);
            border-radius: 50%;
            font-size: 1.35rem;
            margin-bottom: 0.85rem;
            transition: var(--transition-base);
        }
        .sub-tile:hover .sub-tile-icon {
            background: var(--sand-gold);
            color: var(--ink-green);
        }
        .sub-tile h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--ink-green);
            margin-bottom: 0.5rem;
        }
        .sub-tile p {
            font-size: 0.85rem;
            color: #5A625E;
            line-height: 1.65;
            margin: 0;
        }

        /* Info Card Stream */
        .info-card-stream {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .info-stream-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 1.75rem 2rem;
            display: grid;
            grid-template-columns: 180px 1fr;
            gap: 1.5rem;
            transition: var(--transition-base);
        }
        .info-stream-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--sand-gold);
        }
        .info-stream-card .stream-image {
            border-radius: var(--radius);
            overflow: hidden;
            height: 130px;
        }
        .info-stream-card .stream-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius);
        }
        .info-stream-card .stream-content h3 {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--ink-green);
            margin-bottom: 0.55rem;
        }
        .info-stream-card .stream-content p {
            font-size: 0.92rem;
            color: #4A524F;
            line-height: 1.75;
            margin-bottom: 0.75rem;
        }
        .stream-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }
        .stream-tags .badge {
            font-size: 0.7rem;
            padding: 0.2rem 0.65rem;
        }

        /* Data Highlights */
        .data-highlights-section {
            background: var(--charcoal-bg);
        }
        .data-highlights-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }
        .data-highlight-card {
            background: var(--ink-green-light);
            border: 1px solid var(--ink-green-border);
            border-radius: var(--radius);
            padding: 1.75rem 1.25rem;
            text-align: center;
            color: var(--text-light);
            transition: var(--transition-base);
        }
        .data-highlight-card:hover {
            border-color: var(--sand-gold);
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.25);
        }
        .data-highlight-card .metric-number {
            font-size: 2.1rem;
            font-weight: 700;
            color: var(--sand-gold);
            display: block;
            line-height: 1.25;
            margin-bottom: 0.35rem;
        }
        .data-highlight-card .metric-unit {
            font-size: 0.95rem;
            color: rgba(237, 233, 223, 0.7);
            display: block;
            margin-bottom: 0.65rem;
        }
        .data-highlight-card .metric-label {
            font-size: 0.85rem;
            color: rgba(237, 233, 223, 0.85);
            line-height: 1.55;
        }
        .data-highlight-card .metric-trend {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            margin-top: 0.5rem;
        }
        .trend-up {
            background: rgba(200, 164, 93, 0.2);
            color: var(--sand-gold);
        }

        /* FAQ */
        .faq-wrapper {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            margin-bottom: 0.85rem;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--sand-gold);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            color: var(--ink-green);
            font-size: 0.98rem;
            transition: var(--transition-base);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            min-height: 44px;
        }
        .faq-question:hover {
            color: var(--sand-gold-dark);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--sand-light);
            color: var(--ink-green);
            border-radius: 50%;
            font-size: 0.85rem;
            transition: var(--transition-base);
        }
        .faq-item.open .faq-icon {
            background: var(--sand-gold);
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 1.5rem;
            color: #4A524F;
            font-size: 0.9rem;
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 1.5rem 1.25rem;
            border-top: 1px solid var(--border-light);
            margin-top: 0;
        }

        /* CTA Form */
        .cta-section {
            background: linear-gradient(135deg, var(--ink-green) 0%, #153A38 50%, var(--ink-green-light) 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 164, 93, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-form-wrapper {
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 2;
        }
        .cta-form-wrapper h2 {
            color: #FFFFFF;
            font-size: 1.8rem;
            margin-bottom: 0.75rem;
            font-weight: 700;
        }
        .cta-form-wrapper .cta-subtitle {
            color: rgba(237, 233, 223, 0.8);
            font-size: 0.95rem;
            margin-bottom: 2rem;
        }
        .cta-form-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--ink-green-border);
            border-radius: var(--radius-lg);
            padding: 2rem;
            backdrop-filter: blur(8px);
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            margin-bottom: 1rem;
        }
        .form-group {
            text-align: left;
        }
        .form-group label {
            display: block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--sand-gold);
            margin-bottom: 0.4rem;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--ink-green-border);
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            font-size: 0.92rem;
            font-family: var(--font-sans);
            transition: var(--transition-base);
            min-height: 44px;
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: rgba(237, 233, 223, 0.45);
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--sand-gold);
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 2px rgba(200, 164, 93, 0.3);
        }
        .form-group select {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23C8A45D' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 1rem center;
            padding-right: 2.5rem;
        }
        .form-group select option {
            background: var(--ink-green);
            color: #FFFFFF;
        }
        .form-submit {
            margin-top: 1.5rem;
        }
        .form-terms {
            font-size: 0.78rem;
            color: rgba(237, 233, 223, 0.55);
            margin-top: 1rem;
            text-align: center;
        }

        /* Footer */
        .site-footer {
            background: var(--ink-green);
            color: rgba(237, 233, 223, 0.75);
            padding-top: 3.5rem;
            border-top: 3px solid var(--sand-gold);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            padding-bottom: 2rem;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.75;
            margin-top: 0.85rem;
            color: rgba(237, 233, 223, 0.65);
        }
        .footer-col h4 {
            color: var(--sand-gold);
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 0.85rem;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col li {
            margin-bottom: 0.45rem;
        }
        .footer-col a {
            color: rgba(237, 233, 223, 0.7);
            font-size: 0.88rem;
            transition: var(--transition-base);
        }
        .footer-col a:hover,
        .footer-col a:focus {
            color: var(--sand-gold);
        }
        .footer-bottom {
            border-top: 1px solid var(--ink-green-border);
            padding: 1.2rem 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: rgba(237, 233, 223, 0.5);
        }
        .footer-bottom a {
            color: rgba(237, 233, 223, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--sand-gold);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .page-layout {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .page-sidebar {
                position: static;
                order: -1;
            }
            .sidebar-nav {
                padding: 1rem;
            }
            .sidebar-nav ul {
                display: flex;
                flex-wrap: wrap;
                gap: 0.4rem;
            }
            .sidebar-nav li {
                margin-bottom: 0;
            }
            .sidebar-nav a {
                display: inline-block;
                padding: 0.4rem 0.8rem;
                font-size: 0.8rem;
                border-left: none;
                border-bottom: 2px solid transparent;
                border-radius: 4px 4px 0 0;
            }
            .sidebar-nav a.active {
                border-bottom-color: var(--sand-gold);
                border-left: none;
            }
            .sidebar-cta {
                display: none;
            }
            .sub-tiles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-highlights-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .info-stream-card {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .info-stream-card .stream-image {
                height: 180px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .top-bar-row {
                flex-wrap: nowrap;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--ink-green);
                flex-direction: column;
                align-items: stretch;
                padding: 0.75rem 1.25rem;
                gap: 0.25rem;
                box-shadow: var(--shadow-nav);
                border-top: 1px solid var(--ink-green-border);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                display: block;
                padding: 0.65rem 0.75rem;
                border-radius: var(--radius-sm);
                border-bottom: none;
                border-left: 3px solid transparent;
            }
            .main-nav a:hover,
            .main-nav a:focus {
                border-left-color: var(--sand-gold);
                border-bottom: none;
            }
            .main-nav a.active {
                border-left-color: var(--sand-gold);
                border-bottom: none;
                background: rgba(200, 164, 93, 0.1);
            }
            .progress-steps-inner {
                gap: 0.3rem;
            }
            .step-item {
                font-size: 0.72rem;
                padding: 0.4rem 0.65rem;
                gap: 0.3rem;
            }
            .step-connector {
                width: 12px;
            }
            .category-hero {
                padding: 2.5rem 0 2rem;
            }
            .category-hero-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .hero-image img {
                height: 200px;
            }
            .sub-tiles-grid {
                grid-template-columns: 1fr;
            }
            .data-highlights-grid {
                grid-template-columns: 1fr 1fr;
            }
            .data-highlight-card .metric-number {
                font-size: 1.6rem;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .cta-form-card {
                padding: 1.25rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.3rem;
            }
        }
        @media (max-width: 520px) {
            :root {
                --spacing-section: 48px;
            }
            .section {
                padding-top: var(--spacing-section);
                padding-bottom: var(--spacing-section);
            }
            .section-sm {
                padding-top: 36px;
                padding-bottom: 36px;
            }
            .category-hero h1 {
                font-size: 1.3rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .data-highlights-grid {
                grid-template-columns: 1fr;
            }
            .info-stream-card {
                padding: 1.25rem;
            }
            .info-stream-card .stream-image {
                height: 160px;
            }
            .faq-question {
                padding: 0.85rem 1rem;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 1rem;
                font-size: 0.85rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 1rem 1rem;
            }
        }

/* roulang page: category4 */
:root {
            --ink-green: #0E2B2A;
            --ink-green-light: #1D3230;
            --ink-green-border: #35524F;
            --sand-gold: #C8A45D;
            --sand-gold-dark: #B8954D;
            --sand-light: #EFE3C8;
            --warm-bg: #F5F1E8;
            --charcoal-bg: #17201F;
            --card-white: #FFFFFF;
            --body-text: #2B2F2E;
            --text-light: #EDE9DF;
            --border-light: #DCE0D7;
            --accent-copper: #C86E3A;
            --radius: 10px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 24px rgba(14, 43, 42, 0.10);
            --shadow-card-hover: 0 16px 36px rgba(14, 43, 42, 0.18);
            --shadow-nav: 0 4px 20px rgba(14, 43, 42, 0.30);
            --transition-base: all 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Source Han Sans SC', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --max-width: 1200px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.75;
            color: var(--body-text);
            background-color: #FFFFFF;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }

        a {
            color: var(--ink-green);
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover,
        a:focus {
            color: var(--sand-gold-dark);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--sand-gold);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .section {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }

        .section-sm {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .section-title {
            text-align: left;
            margin-bottom: 2.5rem;
        }

        .section-title h2 {
            display: inline-block;
            position: relative;
            padding-bottom: 0.75rem;
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--ink-green);
            margin-bottom: 0.5rem;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 56px;
            height: 3px;
            background: var(--sand-gold);
            border-radius: 2px;
        }

        .section-title p {
            color: #5A625E;
            font-size: 0.95rem;
            max-width: 720px;
            margin-top: 0.5rem;
        }

        .badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 0.75rem;
            border-radius: 999px;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .badge-gold {
            background: var(--sand-light);
            color: var(--ink-green);
        }

        .badge-dark {
            background: var(--ink-green);
            color: var(--sand-gold);
        }

        .badge-copper {
            background: #F5E0D0;
            color: #8B4513;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 0.8rem 1.8rem;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            line-height: 1.4;
            min-height: 44px;
            letter-spacing: 0.02em;
        }

        .btn-primary {
            background: var(--sand-gold);
            color: var(--ink-green);
            border-color: var(--sand-gold);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--sand-gold-dark);
            border-color: var(--sand-gold-dark);
            color: var(--ink-green);
            box-shadow: inset 0 2px 6px rgba(14, 43, 42, 0.15);
        }

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

        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--ink-green);
            color: var(--text-light);
            border-color: var(--ink-green);
        }

        .btn-light {
            background: #FFFFFF;
            color: var(--ink-green);
            border-color: #FFFFFF;
        }

        .btn-light:hover,
        .btn-light:focus {
            background: var(--sand-light);
            border-color: var(--sand-light);
            color: var(--ink-green);
        }

        .btn-lg {
            padding: 0.95rem 2.2rem;
            font-size: 1.05rem;
        }

        .btn-block {
            display: flex;
            width: 100%;
        }

        /* ========== Header & Navigation ========== */
        .site-header {
            background: var(--ink-green);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-nav);
        }

        .top-bar-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.8rem 0;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--sand-gold) !important;
            letter-spacing: 0.03em;
        }

        .site-logo:hover {
            color: var(--sand-light) !important;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 8px;
            background: var(--sand-gold);
            color: var(--ink-green);
            font-size: 1.1rem;
            font-weight: 700;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--ink-green-border);
            color: var(--text-light);
            font-size: 1.4rem;
            padding: 0.5rem 0.8rem;
            border-radius: 6px;
            cursor: pointer;
            min-height: 44px;
        }

        .main-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .main-nav li a {
            color: var(--text-light);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.5rem 0;
            display: block;
            border-bottom: 2px solid transparent;
            transition: var(--transition-base);
        }

        .main-nav li a:hover,
        .main-nav li a:focus {
            color: var(--sand-gold);
            border-bottom-color: var(--sand-gold);
        }

        .main-nav li a.active {
            color: var(--sand-gold);
            border-bottom-color: var(--sand-gold);
            font-weight: 600;
        }

        /* Progress Steps */
        .progress-steps {
            background: rgba(0, 0, 0, 0.15);
            border-top: 1px solid var(--ink-green-border);
            padding: 0.6rem 0;
        }

        .progress-steps-inner {
            display: flex;
            align-items: center;
            gap: 0;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .step-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.85rem;
            font-weight: 500;
            padding: 0.4rem 0.8rem;
            border-radius: 6px;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .step-item:hover,
        .step-item:focus {
            color: var(--sand-gold);
            background: rgba(200, 164, 93, 0.1);
        }

        .step-item.active {
            background: var(--sand-gold);
            color: var(--ink-green);
            font-weight: 600;
        }

        .step-num {
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
        }

        .step-connector {
            flex: 0 0 24px;
            height: 1px;
            background: rgba(255, 255, 255, 0.25);
            margin: 0 4px;
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-bar {
            background: var(--warm-bg);
            padding: 0.7rem 0;
            border-bottom: 1px solid var(--border-light);
        }

        .breadcrumb {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.88rem;
            color: #5A625E;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: #9AA39E;
            margin-left: 0.3rem;
        }

        .breadcrumb a {
            color: var(--ink-green);
            font-weight: 500;
        }

        .breadcrumb a:hover {
            color: var(--sand-gold-dark);
        }

        /* ========== Category Hero ========== */
        .category-hero {
            background: linear-gradient(135deg, var(--ink-green) 0%, #1A3E3C 60%, #2A5A55 100%);
            color: var(--text-light);
            padding: 3rem 0;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(200, 164, 93, 0.08);
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(200, 164, 93, 0.05);
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .category-hero-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }

        .category-hero h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 1rem;
            line-height: 1.3;
            letter-spacing: 0.02em;
        }

        .category-hero h1 span {
            color: var(--sand-gold);
        }

        .category-hero .hero-sub {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 1.5rem;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1rem;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
            background: rgba(255, 255, 255, 0.08);
            padding: 0.5rem 1rem;
            border-radius: 6px;
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

        .hero-meta-item i {
            color: var(--sand-gold);
        }

        .category-hero-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            border: 2px solid rgba(200, 164, 93, 0.3);
        }

        .category-hero-img img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            border-radius: 0;
        }

        /* ========== Filter Bar ========== */
        .filter-bar {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 1.2rem 1.5rem;
            margin-top: -2rem;
            position: relative;
            z-index: 10;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.75rem;
        }

        .filter-bar-label {
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--ink-green);
            display: flex;
            align-items: center;
            gap: 0.4rem;
            white-space: nowrap;
        }

        .filter-bar-label i {
            color: var(--sand-gold-dark);
        }

        .filter-options {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .filter-chip {
            padding: 0.45rem 1.1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid var(--border-light);
            background: #FFFFFF;
            color: var(--body-text);
            cursor: pointer;
            transition: var(--transition-base);
            min-height: 44px;
            display: inline-flex;
            align-items: center;
        }

        .filter-chip:hover,
        .filter-chip:focus {
            border-color: var(--sand-gold);
            background: var(--sand-light);
            color: var(--ink-green);
        }

        .filter-chip.active {
            background: var(--ink-green);
            color: var(--sand-gold);
            border-color: var(--ink-green);
            font-weight: 600;
        }

        /* ========== Anchor List ========== */
        .anchor-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin: 1.5rem 0 0;
        }

        .anchor-link {
            font-size: 0.85rem;
            padding: 0.5rem 1rem;
            background: var(--warm-bg);
            color: var(--ink-green);
            border-radius: 6px;
            border: 1px solid var(--border-light);
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            min-height: 44px;
        }

        .anchor-link:hover,
        .anchor-link:focus {
            background: var(--sand-light);
            border-color: var(--sand-gold);
        }

        .anchor-link i {
            color: var(--sand-gold-dark);
            font-size: 0.8rem;
        }

        /* ========== Card Grid ========== */
        .card-grid-ops {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .ops-card {
            background: var(--card-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .ops-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--sand-gold);
            transform: translateY(-4px);
        }

        .ops-card-img {
            height: 180px;
            overflow: hidden;
            border-radius: var(--radius) var(--radius) 0 0;
        }

        .ops-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.4s ease;
        }

        .ops-card:hover .ops-card-img img {
            transform: scale(1.05);
        }

        .ops-card-body {
            padding: 1.25rem 1.5rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .ops-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--ink-green);
            margin-bottom: 0.6rem;
            line-height: 1.4;
        }

        .ops-card-body p {
            font-size: 0.88rem;
            color: #5A625E;
            line-height: 1.7;
            margin-bottom: 1rem;
            flex: 1;
        }

        .ops-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            margin-bottom: 1rem;
        }

        .ops-card-tags .tag {
            font-size: 0.72rem;
            padding: 0.25rem 0.6rem;
            border-radius: 4px;
            background: var(--warm-bg);
            color: var(--ink-green);
            border: 1px solid var(--border-light);
        }

        .ops-card-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--sand-gold-dark);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .ops-card-link:hover {
            color: var(--ink-green);
        }

        /* ========== Deep Content ========== */
        .deep-content {
            background: var(--warm-bg);
        }

        .deep-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .deep-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .deep-img img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: 0;
        }

        .deep-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--ink-green);
            margin-bottom: 1rem;
        }

        .deep-text p {
            color: #5A625E;
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .deep-list {
            list-style: none;
            padding: 0;
            margin: 1.5rem 0;
        }

        .deep-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.7rem;
            margin-bottom: 0.8rem;
            font-size: 0.95rem;
            color: var(--body-text);
        }

        .deep-list li i {
            color: var(--sand-gold-dark);
            margin-top: 0.3rem;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #FFFFFF;
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1.6fr;
            gap: 2.5rem;
            align-items: start;
        }

        .faq-intro h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--ink-green);
            margin-bottom: 0.8rem;
        }

        .faq-intro p {
            color: #5A625E;
            line-height: 1.7;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }

        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            background: #FFFFFF;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item.active {
            border-color: var(--sand-gold);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.2rem;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--ink-green);
            text-align: left;
            gap: 1rem;
            transition: var(--transition-base);
        }

        .faq-question:hover,
        .faq-question:focus {
            background: var(--warm-bg);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--warm-bg);
            color: var(--ink-green);
            font-size: 0.85rem;
            transition: var(--transition-base);
        }

        .faq-item.active .faq-icon {
            background: var(--sand-gold);
            color: var(--ink-green);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 1.2rem;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 1.2rem;
        }

        .faq-answer p {
            color: #5A625E;
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA Form ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--ink-green) 0%, #1A3E3C 50%, #24504B 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(200, 164, 93, 0.1);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: rgba(200, 164, 93, 0.06);
        }

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

        .cta-box {
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-box h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 0.8rem;
        }

        .cta-box p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.95rem;
            margin-bottom: 2rem;
        }

        .cta-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            text-align: left;
        }

        .cta-form .full-width {
            grid-column: 1 / -1;
        }

        .cta-form label {
            color: var(--text-light);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 0.3rem;
            display: block;
        }

        .cta-form input,
        .cta-form textarea,
        .cta-form select {
            width: 100%;
            padding: 0.8rem 1rem;
            border-radius: var(--radius-sm);
            border: 1px solid var(--ink-green-border);
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-light);
            font-size: 0.9rem;
            font-family: var(--font-sans);
            transition: var(--transition-base);
        }

        .cta-form input::placeholder,
        .cta-form textarea::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-form input:focus,
        .cta-form textarea:focus,
        .cta-form select:focus {
            border-color: var(--sand-gold);
            background: rgba(255, 255, 255, 0.12);
            outline: none;
            box-shadow: 0 0 0 3px rgba(200, 164, 93, 0.2);
        }

        .cta-form select option {
            background: var(--ink-green);
            color: var(--text-light);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--ink-green);
            color: rgba(255, 255, 255, 0.75);
            padding: 3rem 0 1.5rem;
            border-top: 3px solid var(--sand-gold);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-brand .site-logo {
            margin-bottom: 0.8rem;
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 300px;
        }

        .footer-col h4 {
            color: var(--sand-gold);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.6rem;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.88rem;
            transition: var(--transition-base);
        }

        .footer-col ul li a:hover,
        .footer-col ul li a:focus {
            color: var(--sand-gold);
        }

        .footer-bottom {
            border-top: 1px solid var(--ink-green-border);
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            align-items: center;
            justify-content: space-between;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.8rem;
        }

        .footer-bottom a:hover {
            color: var(--sand-gold);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .category-hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .category-hero-img img {
                height: 220px;
            }

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

            .deep-grid {
                gap: 2rem;
            }

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

        @media (max-width: 768px) {
            :root {
                --spacing-section: 48px;
            }

            .nav-toggle {
                display: block;
            }

            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 0.75rem 0;
                gap: 0.25rem;
            }

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

            .main-nav li a {
                padding: 0.7rem 0.5rem;
                font-size: 1rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }

            .main-nav li a.active {
                border-bottom-color: var(--sand-gold);
            }

            .card-grid-ops {
                grid-template-columns: 1fr;
            }

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

            .cta-form {
                grid-template-columns: 1fr;
            }

            .cta-box h2 {
                font-size: 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .footer-brand p {
                max-width: 100%;
            }

            .category-hero h1 {
                font-size: 1.7rem;
            }

            .filter-bar {
                padding: 1rem;
                margin-top: -1.5rem;
            }

            .section-title h2 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 480px) {
            .category-hero {
                padding: 2rem 0;
            }

            .category-hero h1 {
                font-size: 1.4rem;
            }

            .hero-meta {
                flex-direction: column;
                gap: 0.5rem;
            }

            .ops-card-img {
                height: 150px;
            }

            .progress-steps-inner {
                gap: 0;
            }

            .step-item {
                font-size: 0.75rem;
                padding: 0.3rem 0.6rem;
            }
        }

/* roulang page: category3 */
:root {
            --ink-green: #0E2B2A;
            --ink-green-light: #1D3230;
            --ink-green-border: #35524F;
            --sand-gold: #C8A45D;
            --sand-gold-dark: #B8954D;
            --sand-light: #EFE3C8;
            --warm-bg: #F5F1E8;
            --charcoal-bg: #17201F;
            --card-white: #FFFFFF;
            --body-text: #2B2F2E;
            --text-light: #EDE9DF;
            --border-light: #DCE0D7;
            --accent-copper: #C86E3A;
            --radius: 10px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 24px rgba(14, 43, 42, 0.10);
            --shadow-card-hover: 0 16px 36px rgba(14, 43, 42, 0.18);
            --shadow-nav: 0 4px 20px rgba(14, 43, 42, 0.30);
            --transition-base: all 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Source Han Sans SC', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --max-width: 1200px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.75;
            color: var(--body-text);
            background-color: #FFFFFF;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }

        a {
            color: var(--ink-green);
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover,
        a:focus {
            color: var(--sand-gold-dark);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--sand-gold);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .section {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }

        .section-sm {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .section-title {
            text-align: center;
            margin-bottom: 2.5rem;
        }

        .section-title h2 {
            display: inline-block;
            position: relative;
            padding-bottom: 0.75rem;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--ink-green);
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 56px;
            height: 3px;
            background: var(--sand-gold);
            border-radius: 2px;
        }

        .section-title p {
            color: #5A625E;
            font-size: 0.95rem;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
            margin-top: 0.75rem;
        }

        .badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 0.75rem;
            border-radius: 999px;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .badge-gold {
            background: var(--sand-light);
            color: var(--ink-green);
        }

        .badge-dark {
            background: var(--ink-green);
            color: var(--sand-gold);
        }

        .badge-copper {
            background: #F5E0D0;
            color: #8B4513;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 0.8rem 1.8rem;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            line-height: 1.4;
            min-height: 44px;
            letter-spacing: 0.02em;
        }

        .btn-primary {
            background: var(--sand-gold);
            color: var(--ink-green);
            border-color: var(--sand-gold);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--sand-gold-dark);
            border-color: var(--sand-gold-dark);
            color: var(--ink-green);
            box-shadow: inset 0 2px 6px rgba(14, 43, 42, 0.15);
        }

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

        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--ink-green);
            color: var(--text-light);
            border-color: var(--ink-green);
        }

        .btn-light {
            background: #FFFFFF;
            color: var(--ink-green);
            border-color: #FFFFFF;
        }

        .btn-light:hover,
        .btn-light:focus {
            background: var(--sand-light);
            border-color: var(--sand-light);
            color: var(--ink-green);
        }

        .btn-lg {
            padding: 0.95rem 2.2rem;
            font-size: 1.05rem;
        }

        .btn-block {
            display: flex;
            width: 100%;
        }

        /* ========== Header & Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--ink-green);
            box-shadow: var(--shadow-nav);
            font-family: var(--font-sans);
        }

        .top-bar-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0.75rem 0;
            gap: 0.5rem;
            min-height: 68px;
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.35rem;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.04em;
            text-decoration: none;
            transition: var(--transition-base);
        }

        .site-logo:hover,
        .site-logo:focus {
            color: var(--sand-gold);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--sand-gold);
            color: var(--ink-green);
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--ink-green-border);
            color: #FFFFFF;
            font-size: 1.25rem;
            padding: 0.5rem 0.75rem;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition-base);
            min-height: 44px;
            min-width: 44px;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .main-nav li {
            margin: 0;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            color: #DCE0D7;
            font-size: 0.92rem;
            font-weight: 500;
            padding: 0.5rem 0.9rem;
            border-bottom: 2px solid transparent;
            transition: var(--transition-base);
            letter-spacing: 0.02em;
        }

        .main-nav a:hover,
        .main-nav a:focus {
            color: #FFFFFF;
            border-bottom-color: var(--sand-gold);
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav a.active {
            color: var(--sand-gold);
            border-bottom-color: var(--sand-gold);
            font-weight: 600;
        }

        /* Progress Steps */
        .progress-steps {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
            border-top: 1px solid var(--ink-green-border);
            border-bottom: 1px solid var(--ink-green-border);
            padding: 0.6rem 0;
        }

        .progress-steps-inner {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-wrap: wrap;
        }

        .step-item {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.82rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            padding: 0.4rem 0.8rem;
            border-radius: 999px;
            border: 1px solid transparent;
            transition: var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
        }

        .step-item:hover,
        .step-item:focus {
            color: #FFFFFF;
            border-color: var(--sand-gold);
            background: rgba(200, 164, 93, 0.15);
        }

        .step-item.active {
            background: var(--sand-gold);
            color: var(--ink-green);
            font-weight: 700;
            border-color: var(--sand-gold);
        }

        .step-num {
            font-weight: 700;
            font-size: 0.78rem;
            letter-spacing: 0.04em;
        }

        .step-connector {
            width: 24px;
            height: 1px;
            background: var(--ink-green-border);
            flex-shrink: 0;
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-section {
            background: var(--warm-bg);
            padding: 1rem 0;
            border-bottom: 1px solid var(--border-light);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.88rem;
            color: #5A625E;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .breadcrumb li {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .breadcrumb a {
            color: var(--ink-green);
            font-weight: 500;
        }

        .breadcrumb a:hover {
            color: var(--sand-gold-dark);
        }

        .breadcrumb .separator {
            color: #9AA3A0;
            font-size: 0.75rem;
        }

        .breadcrumb .current {
            color: var(--body-text);
            font-weight: 600;
        }

        /* ========== Category Hero ========== */
        .cat-hero {
            position: relative;
            background: var(--ink-green);
            padding: 3.5rem 0;
            overflow: hidden;
        }

        .cat-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(200, 164, 93, 0.08);
            pointer-events: none;
        }

        .cat-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(200, 134, 58, 0.06);
            pointer-events: none;
        }

        .cat-hero-inner {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 3rem;
            align-items: center;
        }

        .cat-hero h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 1rem;
            line-height: 1.35;
            letter-spacing: 0.02em;
        }

        .cat-hero h1 span {
            color: var(--sand-gold);
        }

        .cat-hero .hero-sub {
            color: #DCE0D7;
            font-size: 1.05rem;
            line-height: 1.8;
            margin-bottom: 1.75rem;
            max-width: 560px;
        }

        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .hero-img-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card-hover);
            position: relative;
        }

        .hero-img-wrap img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            transition: var(--transition-base);
        }

        .hero-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(14, 43, 42, 0.35) 0%, transparent 60%);
            border-radius: var(--radius-lg);
            pointer-events: none;
        }

        .hero-img-tag {
            position: absolute;
            bottom: 1rem;
            left: 1rem;
            z-index: 2;
            background: var(--sand-gold);
            color: var(--ink-green);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 0.35rem 0.9rem;
            border-radius: 999px;
            letter-spacing: 0.03em;
        }

        /* ========== Large List Section ========== */
        .large-list-section {
            background: #FFFFFF;
        }

        .list-card {
            display: grid;
            grid-template-columns: 380px 1fr;
            gap: 2rem;
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            margin-bottom: 2rem;
            transition: var(--transition-base);
            min-height: 220px;
        }

        .list-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--sand-gold);
        }

        .list-card-img {
            position: relative;
            min-height: 100%;
        }

        .list-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg) 0 0 var(--radius-lg);
        }

        .list-card-body {
            padding: 1.5rem 1.5rem 1.5rem 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .list-card-body h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--ink-green);
            margin: 0 0 0.6rem;
            line-height: 1.4;
        }

        .list-card-body p {
            color: #4A5450;
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 0.8rem;
        }

        .list-card-meta {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: #6B7470;
        }

        .list-card-meta .badge {
            font-size: 0.7rem;
        }

        /* ========== Alternating Cards ========== */
        .alternating-section {
            background: var(--warm-bg);
        }

        .alt-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
            margin-bottom: 3rem;
            padding: 1.5rem;
            background: rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            transition: var(--transition-base);
        }

        .alt-card:hover {
            background: #FFFFFF;
            box-shadow: var(--shadow-card);
        }

        .alt-card.reverse {
            direction: rtl;
        }

        .alt-card.reverse > * {
            direction: ltr;
        }

        .alt-text h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--ink-green);
            margin: 0 0 0.6rem;
            line-height: 1.4;
        }

        .alt-text p {
            color: #4A5450;
            font-size: 0.95rem;
            line-height: 1.85;
            margin-bottom: 0.6rem;
        }

        .alt-text .badge {
            margin-bottom: 0.8rem;
        }

        .alt-img img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .alt-card:hover .alt-img img {
            box-shadow: var(--shadow-card-hover);
        }

        /* ========== Tip Panel ========== */
        .tip-section {
            background: var(--ink-green);
            padding: 3.5rem 0;
        }

        .tip-panel {
            background: var(--ink-green-light);
            border: 1px solid var(--ink-green-border);
            border-radius: var(--radius-lg);
            padding: 2.2rem;
            color: var(--text-light);
            position: relative;
            overflow: hidden;
        }

        .tip-panel::before {
            content: '';
            position: absolute;
            top: -30px;
            right: -30px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(200, 164, 93, 0.15);
            pointer-events: none;
        }

        .tip-panel h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--sand-gold);
            margin: 0 0 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .tip-panel h3 i {
            color: var(--sand-gold);
        }

        .tip-panel p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.85;
            margin-bottom: 0.6rem;
            max-width: 800px;
        }

        .tip-panel .tip-list {
            list-style: none;
            padding: 0;
            margin: 1.2rem 0 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .tip-panel .tip-list li {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--ink-green-border);
            padding: 0.4rem 0.85rem;
            border-radius: 999px;
            font-size: 0.82rem;
            color: var(--text-light);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #FFFFFF;
        }

        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            margin-bottom: 0.8rem;
            overflow: hidden;
            transition: var(--transition-base);
            background: #FFFFFF;
        }

        .faq-item:hover {
            border-color: var(--sand-gold);
        }

        .faq-item.active {
            box-shadow: var(--shadow-card);
            border-color: var(--sand-gold);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.1rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--ink-green);
            transition: var(--transition-base);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
            line-height: 1.5;
            min-height: 44px;
        }

        .faq-question:hover,
        .faq-question:focus {
            color: var(--sand-gold-dark);
            background: rgba(200, 164, 93, 0.06);
        }

        .faq-icon {
            flex-shrink: 0;
            font-size: 0.9rem;
            color: var(--sand-gold);
            transition: var(--transition-base);
            width: 20px;
            text-align: center;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            padding: 0 1.5rem;
            color: #4A5450;
            font-size: 0.92rem;
            line-height: 1.85;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 1.25rem;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--charcoal-bg) 0%, var(--ink-green) 100%);
            padding: 4.5rem 0;
        }

        .cta-box {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--ink-green-border);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -50px;
            left: 50%;
            transform: translateX(-50%);
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(200, 164, 93, 0.08);
            pointer-events: none;
        }

        .cta-box h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 0.6rem;
            position: relative;
        }

        .cta-box h2 span {
            color: var(--sand-gold);
        }

        .cta-box p {
            color: #DCE0D7;
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 1.75rem;
            position: relative;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-form {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr auto;
            gap: 0.75rem;
            position: relative;
        }

        .cta-form input {
            background: rgba(255, 255, 255, 0.95);
            border: 2px solid transparent;
            border-radius: var(--radius-sm);
            padding: 0.7rem 1rem;
            font-size: 0.9rem;
            font-family: var(--font-sans);
            color: var(--body-text);
            transition: var(--transition-base);
            min-height: 44px;
        }

        .cta-form input:focus {
            border-color: var(--sand-gold);
            outline: none;
            box-shadow: 0 0 0 3px rgba(200, 164, 93, 0.25);
        }

        .cta-form .btn {
            min-height: 44px;
            white-space: nowrap;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--ink-green);
            color: #DCE0D7;
            padding-top: 3.5rem;
            border-top: 3px solid var(--sand-gold);
        }

        .site-footer .container {
            position: relative;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr 0.9fr;
            gap: 2rem;
            padding-bottom: 2.5rem;
        }

        .footer-brand .site-logo {
            font-size: 1.2rem;
            margin-bottom: 0.8rem;
        }

        .footer-brand p {
            color: #A8B2AE;
            font-size: 0.88rem;
            line-height: 1.75;
            margin: 0;
            max-width: 260px;
        }

        .footer-col h4 {
            color: var(--sand-gold);
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 0.8rem;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul a {
            color: #A8B2AE;
            font-size: 0.88rem;
            transition: var(--transition-base);
        }

        .footer-col ul a:hover,
        .footer-col ul a:focus {
            color: var(--sand-gold);
        }

        .footer-bottom {
            border-top: 1px solid var(--ink-green-border);
            padding: 1.2rem 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: #7A8581;
        }

        .footer-bottom a {
            color: #A8B2AE;
        }

        .footer-bottom a:hover {
            color: var(--sand-gold);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .cat-hero-inner {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .hero-img-wrap img {
                height: 260px;
            }

            .list-card {
                grid-template-columns: 280px 1fr;
                gap: 1.25rem;
            }

            .cta-form {
                grid-template-columns: 1fr 1fr;
            }

            .cta-form .btn {
                grid-column: 1 / -1;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 56px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 0.5rem 0 1rem;
                background: var(--ink-green);
                border-radius: 0 0 var(--radius) var(--radius);
            }

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

            .main-nav a {
                width: 100%;
                padding: 0.7rem 0.9rem;
                border-bottom: 1px solid var(--ink-green-border);
                border-radius: 0;
            }

            .main-nav a.active {
                border-bottom: 1px solid var(--ink-green-border);
                background: rgba(200, 164, 93, 0.12);
            }

            .progress-steps {
                display: none;
            }

            .cat-hero {
                padding: 2.5rem 0;
            }

            .cat-hero h1 {
                font-size: 1.6rem;
            }

            .cat-hero .hero-sub {
                font-size: 0.95rem;
            }

            .hero-actions {
                flex-direction: column;
                gap: 0.6rem;
            }

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

            .list-card {
                grid-template-columns: 1fr;
                gap: 0;
                min-height: auto;
            }

            .list-card-img img {
                height: 200px;
                border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            }

            .list-card-body {
                padding: 1.25rem;
            }

            .alt-card,
            .alt-card.reverse {
                grid-template-columns: 1fr;
                direction: ltr;
                padding: 1rem;
                gap: 1.25rem;
            }

            .alt-card.reverse > * {
                direction: ltr;
            }

            .alt-img img {
                height: 220px;
            }

            .tip-panel {
                padding: 1.5rem;
            }

            .cta-box {
                padding: 1.75rem;
            }

            .cta-box h2 {
                font-size: 1.3rem;
            }

            .cta-form {
                grid-template-columns: 1fr;
            }

            .cta-form .btn {
                grid-column: 1 / -1;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.4rem;
            }
        }

        @media (max-width: 480px) {
            :root {
                --spacing-section: 40px;
            }

            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .cat-hero h1 {
                font-size: 1.4rem;
            }

            .section-title h2 {
                font-size: 1.4rem;
            }

            .tip-panel h3 {
                font-size: 1.1rem;
            }

            .cta-box h2 {
                font-size: 1.15rem;
            }

            .btn {
                font-size: 0.88rem;
                padding: 0.7rem 1.3rem;
            }

            .faq-question {
                font-size: 0.9rem;
                padding: 0.9rem 1rem;
            }

            .faq-answer {
                font-size: 0.85rem;
                padding: 0 1rem;
            }
        }

/* roulang page: category5 */
:root {
            --ink-green: #0E2B2A;
            --ink-green-light: #1D3230;
            --ink-green-border: #35524F;
            --sand-gold: #C8A45D;
            --sand-gold-dark: #B8954D;
            --sand-light: #EFE3C8;
            --warm-bg: #F5F1E8;
            --charcoal-bg: #17201F;
            --card-white: #FFFFFF;
            --body-text: #2B2F2E;
            --text-light: #EDE9DF;
            --border-light: #DCE0D7;
            --accent-copper: #C86E3A;
            --radius: 10px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 24px rgba(14, 43, 42, 0.10);
            --shadow-card-hover: 0 16px 36px rgba(14, 43, 42, 0.18);
            --shadow-nav: 0 4px 20px rgba(14, 43, 42, 0.30);
            --transition-base: all 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Source Han Sans SC', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --max-width: 1200px;
        }

        :root {
            --spacing-section: 64px;
        }

        :root {
            --spacing-section: 48px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.75;
            color: var(--body-text);
            background-color: #FFFFFF;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }

        a {
            color: var(--ink-green);
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover,
        a:focus {
            color: var(--sand-gold-dark);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--sand-gold);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .section {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }

        .section-sm {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .section-title {
            text-align: center;
            margin-bottom: 2.5rem;
        }

        .section-title h2 {
            display: inline-block;
            position: relative;
            padding-bottom: 0.75rem;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 56px;
            height: 3px;
            background: var(--sand-gold);
            border-radius: 2px;
        }

        .section-title p {
            color: #5A625E;
            font-size: 0.95rem;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }

        .badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 0.75rem;
            border-radius: 999px;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .badge-gold {
            background: var(--sand-light);
            color: var(--ink-green);
        }

        .badge-dark {
            background: var(--ink-green);
            color: var(--sand-gold);
        }

        .badge-copper {
            background: #F5E0D0;
            color: #8B4513;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 0.8rem 1.8rem;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            line-height: 1.4;
            min-height: 44px;
            letter-spacing: 0.02em;
        }

        .btn-primary {
            background: var(--sand-gold);
            color: var(--ink-green);
            border-color: var(--sand-gold);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--sand-gold-dark);
            border-color: var(--sand-gold-dark);
            color: var(--ink-green);
            box-shadow: inset 0 2px 6px rgba(14, 43, 42, 0.15);
        }

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

        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--ink-green);
            color: var(--text-light);
            border-color: var(--ink-green);
        }

        .btn-light {
            background: #FFFFFF;
            color: var(--ink-green);
            border-color: #FFFFFF;
        }

        .btn-light:hover,
        .btn-light:focus {
            background: var(--sand-light);
            border-color: var(--sand-light);
            color: var(--ink-green);
        }

        .btn-lg {
            padding: 0.95rem 2.2rem;
            font-size: 1.05rem;
        }

        .btn-block {
            display: flex;
            width: 100%;
        }

        /* ========== Header & Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--ink-green);
            box-shadow: var(--shadow-nav);
        }

        .site-header .container {
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
        }

        .top-bar-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--sand-gold);
            letter-spacing: 0.04em;
            white-space: nowrap;
        }

        .site-logo:hover,
        .site-logo:focus {
            color: var(--sand-light);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--sand-gold);
            color: var(--ink-green);
            border-radius: 50%;
            font-size: 1.25rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .main-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 1.75rem;
            flex-wrap: wrap;
        }

        .main-nav li {
            margin: 0;
        }

        .main-nav a {
            display: inline-block;
            padding: 0.5rem 0.1rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            border-bottom: 2px solid transparent;
            white-space: nowrap;
        }

        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--sand-gold);
            border-bottom-color: var(--sand-gold);
        }

        .main-nav a.active {
            color: var(--sand-gold);
            border-bottom-color: var(--sand-gold);
            font-weight: 600;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--ink-green-border);
            color: var(--text-light);
            font-size: 1.5rem;
            padding: 0.4rem 0.75rem;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition-base);
            min-height: 44px;
        }

        .nav-toggle:hover,
        .nav-toggle:focus {
            background: var(--ink-green-light);
            border-color: var(--sand-gold);
            color: var(--sand-gold);
        }

        /* Progress Steps */
        .progress-steps {
            background: rgba(255, 255, 255, 0.06);
            border-top: 1px solid var(--ink-green-border);
            padding-top: 0.6rem;
            padding-bottom: 0.6rem;
        }

        .progress-steps-inner {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }

        .step-item {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.4rem 0.9rem;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .step-item:hover,
        .step-item:focus {
            color: var(--sand-gold);
            background: rgba(255, 255, 255, 0.08);
        }

        .step-item.active {
            background: var(--sand-gold);
            color: var(--ink-green);
            font-weight: 600;
        }

        .step-num {
            font-variant-numeric: tabular-nums;
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.04em;
        }

        .step-connector {
            width: 18px;
            height: 2px;
            background: var(--ink-green-border);
            flex-shrink: 0;
            border-radius: 1px;
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-bar {
            background: var(--warm-bg);
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
            border-bottom: 1px solid var(--border-light);
        }

        .breadcrumb {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: #6B736F;
            flex-wrap: wrap;
        }

        .breadcrumb li {
            margin: 0;
        }

        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #A8B0AC;
        }

        .breadcrumb a {
            color: var(--ink-green);
            font-weight: 500;
        }

        .breadcrumb a:hover,
        .breadcrumb a:focus {
            color: var(--sand-gold-dark);
        }

        .breadcrumb .current {
            color: var(--sand-gold-dark);
            font-weight: 600;
        }

        /* ========== Hero Banner ========== */
        .category-hero {
            background: var(--ink-green);
            color: var(--text-light);
            padding-top: 3rem;
            padding-bottom: 3.5rem;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            border: 1px solid rgba(200, 164, 93, 0.25);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -120px;
            left: -100px;
            width: 400px;
            height: 400px;
            border: 1px solid rgba(200, 164, 93, 0.15);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .category-hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 3rem;
            align-items: center;
        }

        .category-hero h1 {
            font-size: 2.25rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 1rem;
            line-height: 1.35;
            letter-spacing: 0.02em;
        }

        .category-hero h1 .gold {
            color: var(--sand-gold);
        }

        .category-hero p.hero-desc {
            font-size: 1.05rem;
            color: #C9D0CC;
            max-width: 600px;
            line-height: 1.85;
            margin-bottom: 1.5rem;
        }

        .hero-badge-row {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
            margin-bottom: 1.5rem;
        }

        .hero-badge-row .badge {
            background: rgba(255, 255, 255, 0.1);
            color: var(--sand-gold);
            border: 1px solid rgba(200, 164, 93, 0.35);
            font-size: 0.8rem;
            padding: 0.35rem 0.9rem;
        }

        .category-hero-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
            border: 2px solid var(--ink-green-border);
        }

        .category-hero-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
            min-height: 280px;
        }

        /* ========== Info Panels / Explanation Cards ========== */
        .insight-banner-section {
            background: var(--warm-bg);
            padding-top: 3rem;
            padding-bottom: 3rem;
        }

        .insight-banner {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 2rem 2.5rem;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 1.5rem;
            align-items: center;
        }

        .insight-banner h2 {
            font-size: 1.5rem;
            color: var(--ink-green);
            margin-bottom: 0.5rem;
        }

        .insight-banner p {
            color: #5A625E;
            margin: 0;
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* ========== Comparison Cards ========== */
        .comparison-section {
            background: var(--warm-bg);
            padding-top: 3rem;
            padding-bottom: 3rem;
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin-top: 2rem;
        }

        .comparison-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 2rem 2.2rem;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .comparison-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--sand-gold);
        }

        .comparison-card.featured {
            border: 2px solid var(--sand-gold);
            background: linear-gradient(180deg, #FFFFFF 0%, var(--sand-light) 100%);
        }

        .comparison-card h3 {
            font-size: 1.25rem;
            color: var(--ink-green);
            margin-bottom: 1rem;
            padding-bottom: 0.75rem;
            border-bottom: 2px solid var(--sand-gold);
            display: inline-block;
        }

        .comparison-card ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .comparison-card ul li {
            padding: 0.55rem 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 0.95rem;
            color: #4A514E;
        }

        .comparison-card ul li:last-child {
            border-bottom: none;
        }

        .comparison-card ul li i {
            color: var(--sand-gold-dark);
            width: 1.25rem;
            text-align: center;
            flex-shrink: 0;
        }

        .comparison-highlight {
            margin-top: 1.5rem;
            padding: 1rem 1.5rem;
            background: var(--sand-light);
            border-radius: var(--radius-sm);
            text-align: center;
        }

        .comparison-highlight .number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--ink-green);
            line-height: 1.2;
        }

        .comparison-highlight .label {
            font-size: 0.85rem;
            color: #5A625E;
        }

        .vs-divider {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--sand-gold-dark);
            min-width: 50px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #FFFFFF;
            padding-top: 3rem;
            padding-bottom: 3rem;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
            margin-bottom: 0.5rem;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 1rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--ink-green);
            cursor: pointer;
            transition: var(--transition-base);
            gap: 1rem;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            min-height: 44px;
        }

        .faq-question:hover,
        .faq-question:focus {
            color: var(--sand-gold-dark);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--sand-light);
            color: var(--ink-green);
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .faq-answer-inner {
            padding: 0 1rem 1.2rem 3.2rem;
            color: #5A625E;
            font-size: 0.95rem;
            line-height: 1.85;
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--sand-gold);
            color: var(--ink-green);
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        /* ========== CTA Form ========== */
        .cta-section {
            background: var(--ink-green);
            padding-top: 4rem;
            padding-bottom: 4rem;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--sand-gold), var(--accent-copper), var(--sand-gold));
        }

        .cta-wrapper {
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .cta-wrapper h2 {
            font-size: 1.75rem;
            color: #FFFFFF;
            margin-bottom: 0.75rem;
        }

        .cta-wrapper p {
            color: #C9D0CC;
            margin-bottom: 2rem;
            font-size: 0.95rem;
        }

        .cta-form {
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-lg);
            padding: 2rem 2.5rem;
            border: 1px solid var(--ink-green-border);
            display: grid;
            gap: 1.2rem;
            text-align: left;
        }

        .cta-form label {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--sand-gold);
            margin-bottom: 0.4rem;
            display: block;
        }

        .cta-form input,
        .cta-form select,
        .cta-form textarea {
            width: 100%;
            padding: 0.85rem 1rem;
            border-radius: var(--radius-sm);
            border: 1px solid var(--ink-green-border);
            background: #FFFFFF;
            color: var(--body-text);
            font-size: 0.95rem;
            transition: var(--transition-base);
            font-family: var(--font-sans);
        }

        .cta-form input:focus,
        .cta-form select:focus,
        .cta-form textarea:focus {
            border-color: var(--sand-gold);
            box-shadow: 0 0 0 3px rgba(200, 164, 93, 0.2);
            outline: none;
        }

        .cta-form .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }

        .cta-form .btn {
            justify-self: start;
            min-width: 200px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--ink-green);
            color: var(--text-light);
            padding-top: 3.5rem;
            border-top: 3px solid var(--sand-gold);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid var(--ink-green-border);
        }

        .footer-brand .site-logo {
            font-size: 1.25rem;
            margin-bottom: 1rem;
        }

        .footer-brand p {
            color: #A8B5B0;
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 1rem;
            color: var(--sand-gold);
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
            font-weight: 600;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.6rem;
        }

        .footer-col ul a {
            color: #A8B5B0;
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

        .footer-col ul a:hover,
        .footer-col ul a:focus {
            color: var(--sand-gold);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding-top: 1.5rem;
            padding-bottom: 1.5rem;
            font-size: 0.8rem;
            color: #7A8A85;
            flex-wrap: wrap;
        }

        .footer-bottom a {
            color: #7A8A85;
            font-size: 0.8rem;
        }

        .footer-bottom a:hover,
        .footer-bottom a:focus {
            color: var(--sand-gold);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .category-hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
                text-align: center;
            }
            .category-hero p.hero-desc {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-badge-row {
                justify-content: center;
            }
            .category-hero-img {
                max-width: 500px;
                margin: 0 auto;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .vs-divider {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
            .insight-banner {
                grid-template-columns: 1fr;
                text-align: center;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: inline-flex;
                align-items: center;
            }

            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 0;
                padding-top: 0.75rem;
                border-top: 1px solid var(--ink-green-border);
            }

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

            .main-nav li {
                width: 100%;
            }

            .main-nav a {
                display: block;
                padding: 0.8rem 0.5rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                width: 100%;
            }

            .top-bar-row {
                flex-wrap: nowrap;
            }

            .progress-steps-inner {
                flex-wrap: nowrap;
                overflow-x: auto;
                gap: 0.35rem;
                padding-bottom: 0.25rem;
                -webkit-overflow-scrolling: touch;
            }

            .step-item {
                font-size: 0.75rem;
                padding: 0.35rem 0.7rem;
                flex-shrink: 0;
            }

            .step-connector {
                display: none;
            }

            .category-hero {
                padding-top: 2rem;
                padding-bottom: 2.5rem;
            }

            .category-hero h1 {
                font-size: 1.6rem;
            }

            .insight-banner {
                padding: 1.5rem;
            }

            .comparison-card {
                padding: 1.5rem;
            }

            .cta-form {
                padding: 1.5rem;
            }

            .cta-form .form-row {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.5rem;
            }

            .section {
                padding-top: var(--spacing-section-mobile);
                padding-bottom: var(--spacing-section-mobile);
            }

            .insight-banner-section,
            .comparison-section,
            .faq-section {
                padding-top: 2rem;
                padding-bottom: 2rem;
            }

            .cta-section {
                padding-top: 2.5rem;
                padding-bottom: 2.5rem;
            }

            .faq-answer-inner {
                padding-left: 1rem;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.35rem;
            }
            .comparison-highlight .number {
                font-size: 2rem;
            }
            .cta-form .btn {
                width: 100%;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-badge-row .badge {
                font-size: 0.7rem;
            }
        }