/* ========== Xnair Content-Scoped Variables ========== */
        .xnair-page-wrap {
            --xnair-deep-navy: #0b2545;
            --xnair-steel-blue: #134074;
            --xnair-slate: #334155;
            --xnair-warm-gray: #f1f5f9;
            --xnair-border-subtle: #e2e8f0;
            --xnair-accent-amber: #c7852c;
            --xnair-surface-white: #ffffff;
            --xnair-text-soft: #475569;
            --xnair-link-hover: #1e5a8a;
            --xnair-success-green: #2d6a4f;
            --xnair-radius-sm: 6px;
            --xnair-radius-md: 10px;
            --xnair-radius-lg: 16px;
            --xnair-shadow-card: 0 2px 12px rgba(11, 37, 69, 0.06);
            --xnair-shadow-elevated: 0 6px 24px rgba(11, 37, 69, 0.10);
            --xnair-transition-fast: 0.2s ease;
            font-family: "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--xnair-slate);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }


        .xnair-page-wrap a {
            text-decoration: none;
            color: inherit;
            transition: color var(--xnair-transition-fast), background var(--xnair-transition-fast);
        }

        /* ========== Content Container ========== */
        .xnair-content-container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }
        @media(max-width: 768px) {
            .xnair-content-container {
                padding: 0 18px;
            }
        }

        /* ========== Breadcrumb ========== */
        .xnair-breadcrumb-wrap {
            background: var(--xnair-warm-gray);
            border-bottom: 1px solid var(--xnair-border-subtle);
            padding: 14px 0;
        }
        .xnair-breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--xnair-text-soft);
            list-style: none;
        }
        .xnair-breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .xnair-breadcrumb li a {
            color: var(--xnair-steel-blue);
            font-weight: 500;
        }
        .xnair-breadcrumb li a:hover {
            color: var(--xnair-link-hover);
            text-decoration: underline;
        }
        .xnair-breadcrumb-sep {
            color: #94a3b8;
            font-size: 12px;
            user-select: none;
        }
        .xnair-breadcrumb .xnair-current {
            color: var(--xnair-slate);
            font-weight: 600;
        }

        /* ========== Hero Section ========== */
        .xnair-hero-section {
            background: var(--xnair-surface-white);
            padding: 40px 0 50px;
        }
        .xnair-hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .xnair-hero-image img {
            width: 100%;
            height: auto;
            border-radius: var(--xnair-radius-lg);
            box-shadow: var(--xnair-shadow-elevated);
            object-fit: cover;
            aspect-ratio: 4 / 3;
        }
        .xnair-hero-content h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--xnair-deep-navy);
            line-height: 1.3;
            margin-bottom: 18px;
            letter-spacing: -0.3px;
        }
        .xnair-hero-content .xnair-hero-subtitle {
            font-size: 1.05rem;
            color: var(--xnair-text-soft);
            margin-bottom: 22px;
            line-height: 1.6;
        }
        .xnair-hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-bottom: 24px;
        }
        .xnair-hero-stat {
            background: var(--xnair-warm-gray);
            border-radius: var(--xnair-radius-sm);
            padding: 14px 18px;
            text-align: center;
            min-width: 90px;
        }
        .xnair-hero-stat .xnair-stat-number {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--xnair-deep-navy);
        }
        .xnair-hero-stat .xnair-stat-label {
            font-size: 0.85rem;
            color: var(--xnair-text-soft);
            margin-top: 2px;
        }
        .xnair-hero-cta {
            display: inline-block;
            background: #bfdd86;
            color: #fff;
            padding: 13px 30px;
            border-radius: var(--xnair-radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.4px;
            transition: background var(--xnair-transition-fast), transform var(--xnair-transition-fast);
        }
        .xnair-hero-cta:hover {
            background: var(--xnair-steel-blue);
            transform: translateY(-1px);
            color: #fff;
        }
        @media(max-width: 900px) {
            .xnair-hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .xnair-hero-content h1 {
                font-size: 1.65rem;
            }
            .xnair-hero-image {
                order: -1;
            }
            .xnair-hero-image img {
                aspect-ratio: 16 / 9;
            }
        }

        /* ========== Section Headings ========== */
        .xnair-section-heading {
            text-align: center;
            margin-bottom: 40px;
        }
        .xnair-section-heading h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--xnair-deep-navy);
            margin-bottom: 8px;
            letter-spacing: -0.2px;
        }
        .xnair-section-heading p {
            font-size: 0.95rem;
            color: var(--xnair-text-soft);
            max-width: 650px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .xnair-divider {
            width: 50px;
            height: 3px;
            background: var(--xnair-accent-amber);
            margin: 14px auto 0;
            border-radius: 2px;
        }

        /* ========== Service Cards Grid ========== */
        .xnair-services-section {
            padding: 50px 0;
            background: var(--xnair-warm-gray);
        }
        .xnair-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .xnair-service-card {
            background: var(--xnair-surface-white);
            border-radius: var(--xnair-radius-md);
            padding: 24px 18px;
            box-shadow: var(--xnair-shadow-card);
            border: 1px solid var(--xnair-border-subtle);
            transition: box-shadow var(--xnair-transition-fast), transform var(--xnair-transition-fast);
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .xnair-service-card:hover {
            box-shadow: var(--xnair-shadow-elevated);
            transform: translateY(-2px);
        }
        .xnair-service-card .xnair-card-icon {
            width: 52px;
            height: 52px;
            background: #e8f0f8;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin-bottom: 14px;
            flex-shrink: 0;
        }
        .xnair-service-card h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--xnair-deep-navy);
            margin-bottom: 6px;
            line-height: 1.3;
        }
        .xnair-service-card h3 a {
            color: inherit;
        }
        .xnair-service-card h3 a:hover {
            color: var(--xnair-link-hover);
            text-decoration: underline;
        }
        .xnair-service-card .xnair-card-desc {
            font-size: 0.83rem;
            color: var(--xnair-text-soft);
            line-height: 1.5;
            margin-top: 4px;
        }
        @media(max-width: 1100px) {
            .xnair-cards-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media(max-width: 780px) {
            .xnair-cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }
        @media(max-width: 480px) {
            .xnair-cards-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .xnair-service-card {
                padding: 16px 10px;
            }
            .xnair-service-card h3 {
                font-size: 0.85rem;
            }
            .xnair-service-card .xnair-card-desc {
                font-size: 0.76rem;
            }
        }

        /* ========== Pagination ========== */
        .xnair-pagination-wrap {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin-top: 36px;
            flex-wrap: wrap;
        }
        .xnair-pagination-wrap a,
        .xnair-pagination-wrap span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 38px;
            height: 38px;
            padding: 0 10px;
            border-radius: var(--xnair-radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid var(--xnair-border-subtle);
            background: var(--xnair-surface-white);
            color: var(--xnair-slate);
            transition: all var(--xnair-transition-fast);
            white-space: nowrap;
        }
        .xnair-pagination-wrap a:hover {
            background: var(--xnair-deep-navy);
            color: #fff;
            border-color: var(--xnair-deep-navy);
        }
        .xnair-pagination-wrap .xnair-page-active {
            background: var(--xnair-deep-navy);
            color: #fff;
            border-color: var(--xnair-deep-navy);
            font-weight: 700;
            pointer-events: none;
        }
        .xnair-pagination-wrap .xnair-page-disabled {
            opacity: 0.45;
            pointer-events: none;
            background: var(--xnair-warm-gray);
        }
        @media(max-width: 480px) {
            .xnair-pagination-wrap a,
            .xnair-pagination-wrap span {
                min-width: 32px;
                height: 32px;
                font-size: 0.8rem;
                padding: 0 7px;
            }
        }

        /* ========== Process Timeline (30% weight) ========== */
        .xnair-process-section {
            padding: 50px 0;
            background: var(--xnair-surface-white);
        }
        .xnair-timeline {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            position: relative;
        }
        .xnair-timeline-step {
            text-align: center;
            position: relative;
            padding: 0 8px;
        }
        .xnair-timeline-step .xnair-step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--xnair-deep-navy);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            position: relative;
            z-index: 2;
        }
        .xnair-timeline-step h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--xnair-deep-navy);
            margin-bottom: 4px;
        }
        .xnair-timeline-step p {
            font-size: 0.8rem;
            color: var(--xnair-text-soft);
            line-height: 1.5;
        }
        /* connecting line */
        .xnair-timeline::before {
            content: '';
            position: absolute;
            top: 22px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: var(--xnair-border-subtle);
            z-index: 1;
        }
        @media(max-width: 900px) {
            .xnair-timeline {
                grid-template-columns: repeat(3, 1fr);
                row-gap: 28px;
            }
            .xnair-timeline::before {
                display: none;
            }
        }
        @media(max-width: 560px) {
            .xnair-timeline {
                grid-template-columns: 1fr 1fr;
                row-gap: 22px;
            }
        }
        @media(max-width: 380px) {
            .xnair-timeline {
                grid-template-columns: 1fr;
            }
        }

        /* ========== Related Products Links ========== */
        .xnair-related-section {
            padding: 44px 0;
            background: var(--xnair-warm-gray);
        }
        .xnair-related-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
            list-style: none;
        }
        .xnair-related-list li a {
            display: block;
            padding: 11px 14px;
            background: var(--xnair-surface-white);
            border-radius: var(--xnair-radius-sm);
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--xnair-steel-blue);
            border: 1px solid var(--xnair-border-subtle);
            transition: all var(--xnair-transition-fast);
            text-align: center;
        }
        .xnair-related-list li a:hover {
            border-color: var(--xnair-steel-blue);
            background: #e8f0f8;
            color: var(--xnair-deep-navy);
        }
        @media(max-width: 900px) {
            .xnair-related-list {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media(max-width: 600px) {
            .xnair-related-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .xnair-related-list li a {
                font-size: 0.8rem;
                padding: 9px 10px;
            }
        }

        /* ========== Featured Cases ========== */
        .xnair-cases-section {
            padding: 50px 0;
            background: var(--xnair-surface-white);
        }
        .xnair-cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .xnair-case-card {
            border-radius: var(--xnair-radius-md);
            overflow: hidden;
            border: 1px solid var(--xnair-border-subtle);
            box-shadow: var(--xnair-shadow-card);
            transition: box-shadow var(--xnair-transition-fast);
            background: #fff;
        }
        .xnair-case-card:hover {
            box-shadow: var(--xnair-shadow-elevated);
        }
        .xnair-case-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            aspect-ratio: 16 / 9;
        }
        .xnair-case-card .xnair-case-info {
            padding: 16px;
        }
        .xnair-case-card .xnair-case-info h3 {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--xnair-deep-navy);
            margin-bottom: 4px;
            line-height: 1.3;
        }
        .xnair-case-card .xnair-case-info h3 a {
            color: inherit;
        }
        .xnair-case-card .xnair-case-info h3 a:hover {
            color: var(--xnair-link-hover);
            text-decoration: underline;
        }
        .xnair-case-card .xnair-case-info .xnair-case-meta {
            font-size: 0.8rem;
            color: var(--xnair-text-soft);
        }
        @media(max-width: 900px) {
            .xnair-cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media(max-width: 520px) {
            .xnair-cases-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== Specs Table ========== */
        .xnair-specs-section {
            padding: 44px 0;
            background: var(--xnair-warm-gray);
        }
        .xnair-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--xnair-radius-md);
            border: 1px solid var(--xnair-border-subtle);
            background: #fff;
            box-shadow: var(--xnair-shadow-card);
        }
        .xnair-specs-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 680px;
        }
        .xnair-specs-table thead th {
            background: var(--xnair-deep-navy);
            color: #fff;
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .xnair-specs-table tbody td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--xnair-border-subtle);
            color: var(--xnair-slate);
            vertical-align: top;
        }
        .xnair-specs-table tbody tr:last-child td {
            border-bottom: none;
        }
        .xnair-specs-table tbody tr:hover {
            background: #f8fafc;
        }
        .xnair-specs-table .xnair-td-label {
            font-weight: 600;
            color: var(--xnair-deep-navy);
            white-space: nowrap;
        }
        @media(max-width: 768px) {
            .xnair-specs-table {
                font-size: 0.78rem;
                min-width: 560px;
            }
            .xnair-specs-table thead th,
            .xnair-specs-table tbody td {
                padding: 10px 12px;
            }
        }

        /* ========== FAQ ========== */
        .xnair-faq-section {
            padding: 48px 0;
            background: var(--xnair-surface-white);
        }
        .xnair-faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .xnair-faq-item {
            border: 1px solid var(--xnair-border-subtle);
            border-radius: var(--xnair-radius-md);
            overflow: hidden;
        }
        .xnair-faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--xnair-deep-navy);
            background: #f8fafc;
            cursor: pointer;
            border: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: background var(--xnair-transition-fast);
        }
        .xnair-faq-question:hover {
            background: #e8f0f8;
        }
        .xnair-faq-question .xnair-faq-icon {
            flex-shrink: 0;
            font-size: 14px;
            transition: transform 0.25s ease;
            color: var(--xnair-steel-blue);
        }
        .xnair-faq-item.xnair-faq-open .xnair-faq-question .xnair-faq-icon {
            transform: rotate(180deg);
        }
        .xnair-faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }
        .xnair-faq-item.xnair-faq-open .xnair-faq-answer {
            max-height: 500px;
        }
        .xnair-faq-answer-inner {
            padding: 0 20px 16px;
            font-size: 0.9rem;
            color: var(--xnair-text-soft);
            line-height: 1.7;
        }

        /* ========== Quality & Certifications ========== */
        .xnair-quality-section {
            padding: 44px 0;
            background: var(--xnair-warm-gray);
        }
        .xnair-quality-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .xnair-quality-card {
            background: #fff;
            border-radius: var(--xnair-radius-md);
            padding: 22px 18px;
            border: 1px solid var(--xnair-border-subtle);
            text-align: center;
        }
        .xnair-quality-card h4 {
            font-size: 0.95rem;
            color: var(--xnair-deep-navy);
            margin-bottom: 8px;
            font-weight: 600;
        }
        .xnair-quality-card p {
            font-size: 0.83rem;
            color: var(--xnair-text-soft);
            line-height: 1.5;
        }
        @media(max-width: 700px) {
            .xnair-quality-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media(max-width: 420px) {
            .xnair-quality-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== Utility ========== */
        .xnair-text-center {
            text-align: center;
        }
        .xnair-mt-20 {
            margin-top: 20px;
        }
        .xnair-mt-30 {
            margin-top: 30px;
        }