:root {
            --tvc-primary: #242f67;
            --tvc-primary-dark: #1b2451;
            --tvc-accent: #e64555;
            --tvc-accent-hover: #c73346;
            --tvc-bg-light: #f7f9fc;
            --tvc-text: #3f4a5a;
            --tvc-border: #e6ebf2;
            --tvc-radius: 18px;
            --tvc-shadow: 0 10px 30px rgba(36, 47, 103, 0.08);
        }

        body {
            font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
            color: var(--tvc-text);
            background-color: #ffffff;
            line-height: 1.7;
        }

        /* ================= HEADER & NAV ================= */
        header {
            background-color: var(--tvc-primary);
            position: sticky;
            top: 0;
            z-index: 2000;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.12);
        }

        .site-header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 2rem;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: #ffffff;
        }

        .brand-logo img {
            width: 52px;
            height: auto;
        }

        .brand-text {
            font-size: 1.05rem;
            font-weight: 800;
            line-height: 1.2;
            color: #ffffff;
        }

        nav.main-nav {
            display: flex;
            align-items: center;
            gap: 1.8rem;
        }

        nav.main-nav a.nav-link-custom {
            color: #ffffff;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s ease;
            white-space: nowrap;
        }

        nav.main-nav a.nav-link-custom:hover {
            color: var(--tvc-accent);
        }

        /* Dropdowns */
        .services-dropdown, .lang-dropdown {
            position: relative;
        }

        .services-menu, .lang-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            background: #ffffff;
            min-width: 220px;
            padding: 8px 0;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            z-index: 3000;
            list-style: none;
            margin: 0;
        }

        .lang-menu {
            right: 0;
            left: auto;
            min-width: 70px;
            text-align: center;
            padding: 8px;
        }

        .services-dropdown:hover .services-menu,
        .lang-dropdown.show .lang-menu {
            display: block;
        }

        .services-menu a {
            display: block;
            padding: 8px 18px;
            color: var(--tvc-primary);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
        }

        .services-menu a:hover {
            background-color: var(--tvc-primary);
            color: #ffffff;
        }

        .flag-circle {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: inline-block;
            background-size: cover;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .lang-btn {
            background: none;
            border: none;
            cursor: pointer;
            padding: 0;
        }

        /* Mobile Hamburger */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: #ffffff;
            font-size: 1.8rem;
        }

        /* ================= CAROUSEL / LOGO MARQUEE ================= */
        .logo-section {
            overflow: hidden;
            background-color: #ffffff;
            padding: 20px 0;
            border-top: 1px solid var(--tvc-border);
            border-bottom: 1px solid var(--tvc-border);
        }

        .slider-track {
            display: flex;
            gap: 30px;
            align-items: center;
            width: max-content;
            animation: continuousScroll 45s linear infinite;
        }

        .slider-track:hover {
            animation-play-state: paused;
        }

        .slider-track img {
            height: 55px;
            width: 120px;
            object-fit: contain;
            filter: grayscale(30%);
            opacity: 0.85;
            transition: all 0.25s ease;
        }

        .slider-track img:hover {
            filter: grayscale(0%);
            opacity: 1;
            transform: scale(1.08);
        }

        @keyframes continuousScroll {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        /* ================= TEAM GALLERY ================= */
        .jobs-detail-gallery {
            display: flex;
            gap: 1.25rem;
            overflow-x: auto;
            padding: 1rem 0;
            scroll-snap-type: x mandatory;
            scrollbar-width: thin;
        }

        .jobs-detail-gallery img {
            flex-shrink: 0;
            width: 280px;
            height: 180px;
            object-fit: cover;
            border-radius: 12px;
            box-shadow: 0 6px 18px rgba(0,0,0,0.1);
        }

        /* ================= BUTTONS & CTAS ================= */
        .btn-tvc-primary {
            background-color: var(--tvc-primary);
            color: #ffffff;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: 99px;
            text-decoration: none;
            display: inline-block;
            transition: all 0.3s ease;
            border: none;
        }

        .btn-tvc-primary:hover {
            background-color: var(--tvc-accent);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(230, 69, 85, 0.3);
        }

        .btn-tvc-accent {
            background-color: var(--tvc-accent);
            color: #ffffff;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: 99px;
            text-decoration: none;
            display: inline-block;
            transition: all 0.3s ease;
            border: none;
        }

        .btn-tvc-accent:hover {
            background-color: var(--tvc-accent-hover);
            color: #ffffff;
            transform: translateY(-2px);
        }

        /* ================= FLOATING CHAT WIDGET ================= */
        .chat-widget {
            position: fixed;
            bottom: 90px;
            right: 24px;
            width: 320px;
            background: #ffffff;
            border-radius: 16px;
            box-shadow: 0 12px 36px rgba(0,0,0,0.18);
            border: 1px solid var(--tvc-border);
            display: none;
            flex-direction: column;
            overflow: hidden;
            z-index: 9999;
        }

        .chat-header {
            background: var(--tvc-primary);
            color: #ffffff;
            padding: 12px 16px;
            font-weight: 700;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .chat-body {
            padding: 16px;
            max-height: 260px;
            overflow-y: auto;
            font-size: 0.9rem;
        }

        .chat-footer {
            padding: 12px;
            border-top: 1px solid var(--tvc-border);
            background: #f8f9fa;
        }

        .quick-contact-btns {
            display: flex;
            gap: 6px;
            margin-bottom: 8px;
        }

        .quick-contact-btns button {
            flex: 1;
            border: none;
            padding: 6px;
            border-radius: 6px;
            color: white;
            font-size: 11px;
            font-weight: bold;
        }

        .btn-line { background: #06C755; }
        .btn-wa { background: #25D366; }
        .btn-zalo { background: #0068FF; }

        .fab-chat-btn {
            position: fixed;
            bottom: 24px;
            right: 24px;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--tvc-accent);
            color: #ffffff;
            border: none;
            box-shadow: 0 8px 24px rgba(230, 69, 85, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            cursor: pointer;
            z-index: 9998;
            transition: transform 0.2s ease;
        }

        .fab-chat-btn:hover {
            transform: scale(1.08);
        }

        /* Responsive Breakpoints */
        @media (max-width: 991px) {
            .site-header-inner {
                padding: 1rem;
            }
            .menu-toggle {
                display: block;
            }
            nav.main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                position: absolute;
                top: 100%;
                left: 0;
                background-color: var(--tvc-primary);
                padding: 1.5rem;
                gap: 1.2rem;
                align-items: flex-start;
            }
            nav.main-nav.active {
                display: flex;
            }
        }
    
        .logo-section-wrapper {
            position: relative;
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
        }
        .logo-slider-container {
            overflow: hidden;
            width: 100%;
            margin: 0 50px;
        }
        .slider-track {
            display: flex;
            transition: transform 0.3s ease-in-out;
            width: 100%;
        }
        .customer-page {
            display: flex;
            gap: 1.5rem;
            width: 100%;
            justify-content: space-evenly;
            align-items: center;
            flex-shrink: 0;
            flex-wrap: nowrap;
        }
        .customer-page img {
            height: 50px;
            max-width: 120px;
            object-fit: contain;
            flex: 1 1 0;
            transition: transform 0.2s ease;
        }
        .customer-page img:hover {
            transform: scale(1.05);
        }
        .logo-nav-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(31, 47, 99, 0.9);
            color: white;
            border: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            cursor: pointer;
            z-index: 10;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s ease;
        }
        .logo-nav-btn:hover {
            background: #d94c5c;
        }
        .logo-nav-btn.prev { left: 0; }
        .logo-nav-btn.next { right: 0; }

        @media (max-width: 768px) {
            .logo-slider-container { margin: 0 10px; }
            .logo-nav-btn { width: 32px; height: 32px; }
            .customer-page { gap: 0.75rem; }
        }