:root {
            --four-ser-brand: #038FCE;
            --four-ser-brand-dark: #0273a8;
            --four-ser-brand-light: #e6f4fb;
            --four-ser-brand-lighter: #f0f8fc;
            --four-ser-text-dark: #1a1a2e;
            --four-ser-text-body: #3d3d4f;
            --four-ser-text-muted: #5c5c6e;
            --four-ser-bg: #f9fafb;
            --four-ser-white: #ffffff;
            --four-ser-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --four-ser-shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --four-ser-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --four-ser-shadow-brand: 0 4px 18px rgba(3, 143, 206, 0.18);
            --four-ser-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --four-ser-radius: 14px;
            --four-ser-radius-sm: 10px;
        }

        .four-ser-section {
            background: var(--four-ser-bg);
            padding: 60px 0 50px;
            font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            position: relative;
            overflow: hidden;
        }

        .four-ser-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -180px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(3, 143, 206, 0.04) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
        }

        .four-ser-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -120px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(3, 143, 206, 0.03) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
        }

        .four-ser-container {
            position: relative;
            z-index: 1;
        }

        .four-ser-main-row {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            align-items: stretch;
        }

        .four-ser-left-col {
            flex: 0 0 auto;
            width: 100%;
            padding: 0 15px;
            order: 2;
        }

        @media (min-width: 992px) {
            .four-ser-left-col {
                width: 63%;
                order: 1;
            }
        }

        /* Image Wrapper */
        .four-ser-image-wrapper {
            position: relative;
            border-radius: var(--four-ser-radius);
            overflow: hidden;
            box-shadow: var(--four-ser-shadow-md);
            margin-bottom: 28px;
            background: #e8edf2;
            transition: var(--four-ser-transition);
        }

        .four-ser-image-wrapper:hover {
            box-shadow: var(--four-ser-shadow-lg);
            transform: translateY(-2px);
        }

        .four-ser-service-image {
            width: 100%;
            height: auto;
            max-height: 420px;
            object-fit: cover;
            display: block;
            transition: opacity 0.4s ease, transform 0.5s ease;
        }

        .four-ser-image-wrapper:hover .four-ser-service-image {
            transform: scale(1.03);
        }

        .four-ser-image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.15) 60%, transparent 100%);
            padding: 28px 24px 20px;
            color: #fff;
            pointer-events: none;
            z-index: 2;
        }

        .four-ser-image-overlay span {
            display: inline-block;
            background: var(--four-ser-brand);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.6px;
            text-transform: uppercase;
        }

        /* Content Blocks */
        .four-ser-content-block {
            display: none;
            background: var(--four-ser-white);
            border-radius: var(--four-ser-radius);
            padding: 30px 28px;
            box-shadow: var(--four-ser-shadow-sm);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: opacity 0.35s ease, transform 0.35s ease;
        }

        .four-ser-content-block.four-ser-active {
            display: block;
            animation: four-ser-fadeInContent 0.4s ease;
            width: 161%
        }

        @keyframes four-ser-fadeInContent {
            from { opacity: 0; transform: translateY(8px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .four-ser-content-title {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--four-ser-text-dark);
            margin-bottom: 4px;
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .four-ser-content-subtitle {
            font-size: 1rem;
            font-weight: 600;
            color: var(--four-ser-brand);
            margin-bottom: 16px;
            letter-spacing: -0.2px;
        }

        .four-ser-content-description {
            font-size: 0.95rem;
            color: var(--four-ser-text-body);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .four-ser-capabilities-heading {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--four-ser-text-dark);
            margin-bottom: 12px;
            position: relative;
            padding-left: 16px;
        }

        .four-ser-capabilities-heading::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            background: var(--four-ser-brand);
            border-radius: 3px;
        }

        .four-ser-capabilities-list {
            list-style: none;
            padding-left: 0;
            margin-bottom: 20px;
            display: grid;
            grid-template-columns: 1fr;
            gap: 8px;
        }

        @media (min-width: 768px) {
            .four-ser-capabilities-list {
                grid-template-columns: 1fr 1fr;
                gap: 6px 20px;
            }
        }

        .four-ser-capabilities-list li {
            position: relative;
            padding-left: 22px;
            font-size: 0.9rem;
            color: var(--four-ser-text-body);
            line-height: 1.6;
            transition: var(--four-ser-transition);
        }

        .four-ser-capabilities-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 7px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--four-ser-brand);
            opacity: 0.7;
            transition: var(--four-ser-transition);
        }

        .four-ser-capabilities-list li:hover {
            color: var(--four-ser-text-dark);
            transform: translateX(3px);
        }

        .four-ser-capabilities-list li:hover::before {
            opacity: 1;
            transform: scale(1.4);
            box-shadow: 0 0 8px rgba(3, 143, 206, 0.4);
        }

        .four-ser-focus-box {
            background: var(--four-ser-brand-lighter);
            border-left: 4px solid var(--four-ser-brand);
            border-radius: 0 var(--four-ser-radius-sm) var(--four-ser-radius-sm) 0;
            padding: 16px 20px;
            margin-top: 8px;
        }

        .four-ser-focus-label {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--four-ser-brand-dark);
            margin-bottom: 6px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .four-ser-focus-text {
            font-size: 0.9rem;
            color: var(--four-ser-text-body);
            line-height: 1.7;
            margin: 0;
        }

        .four-ser-focus-text span {
            display: inline-block;
            background: var(--four-ser-white);
            color: var(--four-ser-text-dark);
            padding: 3px 10px;
            border-radius: 14px;
            margin: 2px 3px;
            font-size: 0.8rem;
            font-weight: 500;
            white-space: nowrap;
            border: 1px solid rgba(3, 143, 206, 0.15);
            transition: var(--four-ser-transition);
        }

        .four-ser-focus-text span:hover {
            background: var(--four-ser-brand);
            color: #fff;
            border-color: var(--four-ser-brand);
        }

        /* Right Sidebar */
        .four-ser-right-col {
            flex: 0 0 auto;
            width: 100%;
            padding: 0 15px;
            order: 1;
            margin-bottom: 24px;
        }

        @media (min-width: 992px) {
            .four-ser-right-col {
                width: 37%;
                order: 2;
                margin-bottom: 0;
            }
        }

        .four-ser-sidebar {
            background: var(--four-ser-white);
            border-radius: var(--four-ser-radius);
            box-shadow: var(--four-ser-shadow-md);
            overflow: hidden;
            position: sticky;
            /* top: 20px; */
            border: 1px solid rgba(0, 0, 0, 0.04);
            display: flex;
            flex-direction: column;
        }

        .four-ser-sidebar-header {
            background: var(--four-ser-brand);
            color: #fff;
            padding: 16px 20px;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.3px;
            text-align: center;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .four-ser-sidebar-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: row;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            gap: 0;
            flex-grow: 1;
        }

        .four-ser-sidebar-list::-webkit-scrollbar {
            display: none;
        }

        @media (min-width: 992px) {
            .four-ser-sidebar-list {
                flex-direction: column;
                overflow-x: visible;
            }
        }

        .four-ser-sidebar-item {
            flex: 0 0 auto;
            min-width: 140px;
            padding: 15px 18px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--four-ser-text-dark);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            display: flex;
            align-items: center;
            gap: 10px;
            border-bottom: 3px solid transparent;
            white-space: nowrap;
            text-align: center;
            justify-content: center;
            user-select: none;
            background: var(--four-ser-white);
        }

        @media (min-width: 992px) {
            .four-ser-sidebar-item {
                flex: none;
                min-width: unset;
                white-space: normal;
                text-align: left;
                justify-content: flex-start;
                padding: 16px 20px;
                border-bottom: 1px solid rgba(0, 0, 0, 0.06);
                border-left: 4px solid transparent;
                border-right: none;
            }
        }

        .four-ser-sidebar-item:hover {
            background: var(--four-ser-brand-lighter);
            color: var(--four-ser-brand);
            transform: translateY(-1px);
            box-shadow: var(--four-ser-shadow-sm);
            border-bottom-color: var(--four-ser-brand);
        }

        @media (min-width: 992px) {
            .four-ser-sidebar-item:hover {
                border-left-color: var(--four-ser-brand);
                border-bottom-color: transparent;
                transform: translateX(3px);
                box-shadow: none;
            }
        }

        .four-ser-sidebar-item.four-ser-active {
            background: var(--four-ser-brand-lighter);
            color: var(--four-ser-brand);
            font-weight: 700;
            border-bottom-color: var(--four-ser-brand);
            box-shadow: inset 0 -2px 0 var(--four-ser-brand);
        }

        @media (min-width: 992px) {
            .four-ser-sidebar-item.four-ser-active {
                border-left: 5px solid var(--four-ser-brand);
                border-bottom-color: transparent;
                box-shadow: inset 3px 0 0 var(--four-ser-brand);
                background: linear-gradient(90deg, rgba(3, 143, 206, 0.07) 0%, rgba(3, 143, 206, 0.01) 100%);
            }
        }

        .four-ser-sidebar-item-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            min-width: 32px;
            border-radius: 50%;
            background: #e8f4fa;
            color: var(--four-ser-brand);
            font-weight: 700;
            font-size: 0.85rem;
            transition: var(--four-ser-transition);
        }

        .four-ser-sidebar-item.four-ser-active .four-ser-sidebar-item-number {
            background: var(--four-ser-brand);
            color: #fff;
            box-shadow: var(--four-ser-shadow-brand);
            animation: four-ser-pulse-number 0.5s ease;
        }

        @keyframes four-ser-pulse-number {
            0% { transform: scale(1); }
            40% { transform: scale(1.2); }
            100% { transform: scale(1); }
        }

        .four-ser-sidebar-item-text {
            font-size: 0.85rem;
            line-height: 1.3;
        }

        @media (min-width: 992px) {
            .four-ser-sidebar-item-text {
                font-size: 0.9rem;
            }
        }

        /* SIDEBAR CONTACT (desktop only) */
        .four-ser-sidebar-contact {
            display: none;
            align-items: center;
            gap: 12px;
            padding: 14px 20px;
            background: var(--four-ser-brand-lighter);
            border-top: 1px solid rgba(3, 143, 206, 0.15);
            flex-shrink: 0;
            transition: var(--four-ser-transition);
            cursor: pointer;
            text-decoration: none;
            color: var(--four-ser-text-dark);
        }

        .four-ser-sidebar-contact:hover {
            background: var(--four-ser-brand-light);
            color: var(--four-ser-brand-dark);
        }

        .four-ser-sidebar-contact-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--four-ser-brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .four-ser-sidebar-contact-info {
            display: flex;
            flex-direction: column;
        }

        .four-ser-sidebar-contact-label {
            font-size: 0.7rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: var(--four-ser-text-muted);
            margin-bottom: 2px;
        }

        .four-ser-sidebar-contact-number {
            font-weight: 700;
            font-size: 1rem;
            color: var(--four-ser-brand);
            text-decoration: none;
        }

        @media (min-width: 992px) {
            .four-ser-sidebar-contact {
                display: flex;
            }
        }

        /* Contact Card (bottom) */
        .four-ser-contact-row {
            margin-top: 32px;
            animation: four-ser-fadeInUp 0.8s ease forwards;
        }

        @keyframes four-ser-fadeInUp {
            from { opacity: 0; transform: translateY(25px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .four-ser-contact-card {
            background: var(--four-ser-white);
            border-radius: var(--four-ser-radius);
            padding: 22px 28px;
            box-shadow: var(--four-ser-shadow-md);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px 24px;
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: var(--four-ser-transition);
            position: relative;
            overflow: hidden;
        }

        .four-ser-contact-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: var(--four-ser-brand);
            border-radius: 0 3px 3px 0;
        }

        .four-ser-contact-card:hover {
            box-shadow: var(--four-ser-shadow-lg);
            transform: translateY(-3px);
            border-color: rgba(3, 143, 206, 0.2);
        }

        .four-ser-contact-icon-wrap {
            flex-shrink: 0;
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: var(--four-ser-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            transition: var(--four-ser-transition);
            animation: four-ser-gentle-pulse 3s ease-in-out infinite;
        }

        @keyframes four-ser-gentle-pulse {
            0%, 100% { box-shadow: 0 0 0 0 rgba(3, 143, 206, 0.35); }
            50% { box-shadow: 0 0 0 14px rgba(3, 143, 206, 0); }
        }

        .four-ser-contact-card:hover .four-ser-contact-icon-wrap {
            transform: scale(1.08);
            box-shadow: var(--four-ser-shadow-brand);
        }

        .four-ser-contact-info {
            flex: 1;
            min-width: 180px;
        }

        .four-ser-contact-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--four-ser-text-muted);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 4px;
        }

        .four-ser-contact-number {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--four-ser-brand);
            letter-spacing: -0.3px;
            text-decoration: none;
            transition: var(--four-ser-transition);
            display: inline-block;
        }

        .four-ser-contact-number:hover {
            color: var(--four-ser-brand-dark);
            transform: scale(1.03);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .four-ser-contact-cta {
            flex-shrink: 0;
        }

        .four-ser-contact-btn {
            display: inline-block;
            background: var(--four-ser-brand);
            color: #fff;
            padding: 11px 24px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            transition: var(--four-ser-transition);
            letter-spacing: 0.3px;
            border: 2px solid var(--four-ser-brand);
        }

        .four-ser-contact-btn:hover {
            background: var(--four-ser-brand-dark);
            border-color: var(--four-ser-brand-dark);
            box-shadow: var(--four-ser-shadow-brand);
            transform: translateY(-2px);
            color: #fff;
        }

        .four-ser-contact-btn i {
            margin-right: 6px;
        }

        /* Responsive fine-tune */
        @media (max-width: 991.98px) {
            .four-ser-section { padding: 36px 0 36px; }
            .four-ser-image-wrapper img { max-height: 260px; }
            .four-ser-content-block { padding: 20px 16px; }
            .four-ser-content-title { font-size: 1.3rem; }
            .four-ser-sidebar-header { font-size: 0.9rem; padding: 12px 16px; }
            .four-ser-sidebar-item { padding: 12px 14px; font-size: 0.8rem; min-width: 120px; gap: 6px; }
            .four-ser-sidebar-item-number { width: 26px; height: 26px; min-width: 26px; font-size: 0.75rem; }
            .four-ser-sidebar-item-text { font-size: 0.78rem; }
            .four-ser-contact-card { padding: 16px 18px; gap: 12px; }
            .four-ser-contact-number { font-size: 1.2rem; }
            .four-ser-contact-icon-wrap { width: 44px; height: 44px; font-size: 1.1rem; }
            .four-ser-contact-btn { padding: 9px 18px; font-size: 0.8rem; width: 100%; text-align: center; }
            .four-ser-contact-cta { width: 100%; }
        }

        @media (max-width: 575.98px) {
            .four-ser-section { padding: 24px 0 28px; }
            .four-ser-image-wrapper { border-radius: var(--four-ser-radius-sm); margin-bottom: 16px; }
            .four-ser-image-wrapper img { max-height: 200px; }
            .four-ser-image-overlay { padding: 16px 14px 12px; }
            .four-ser-image-overlay span { font-size: 0.7rem; padding: 4px 10px; }
            .four-ser-content-block { padding: 16px 14px; border-radius: var(--four-ser-radius-sm); }
            .four-ser-content-title { font-size: 1.15rem; }
            .four-ser-content-subtitle { font-size: 0.85rem; margin-bottom: 10px; }
            .four-ser-content-description { font-size: 0.85rem; line-height: 1.6; }
            .four-ser-capabilities-list { grid-template-columns: 1fr; gap: 4px; }
            .four-ser-capabilities-list li { font-size: 0.82rem; }
            .four-ser-focus-box { padding: 12px 14px; }
            .four-ser-focus-text span { font-size: 0.72rem; padding: 2px 7px; margin: 2px 2px; }
            .four-ser-sidebar { border-radius: var(--four-ser-radius-sm); }
            .four-ser-sidebar-header { font-size: 0.82rem; padding: 10px 14px; }
            .four-ser-sidebar-item { padding: 10px 11px; font-size: 0.74rem; min-width: 105px; gap: 4px; }
            .four-ser-sidebar-item-number { width: 24px; height: 24px; min-width: 24px; font-size: 0.7rem; }
            .four-ser-sidebar-item-text { font-size: 0.72rem; }
            .four-ser-contact-card { padding: 14px; flex-direction: column; align-items: flex-start; border-radius: var(--four-ser-radius-sm); }
            .four-ser-contact-number { font-size: 1.1rem; }
            .four-ser-contact-icon-wrap { width: 40px; height: 40px; font-size: 1rem; }
            .four-ser-contact-label { font-size: 0.75rem; }
            .four-ser-contact-btn { font-size: 0.78rem; padding: 8px 16px; }
              .four-ser-content-block.four-ser-active {
           
            width: 100%
        }
        }