/* ============================
           CSS Variables & Modern Palette
           White/Gray background, Tech Green/Blue accent, Ample Whitespace
        ============================ */
        :root {
            --primary: #0a7e8c;           /* 科技蓝绿色 */
            --primary-dark: #075a64;
            --primary-light: #e6f4f6;
            --accent: #27ae60;            /* 环保绿点缀 */
            --accent-glow: rgba(39, 174, 96, 0.2);
            --dark: #1e293b;
            --gray-900: #0f172a;
            --gray-800: #1e293b;
            --gray-700: #334155;
            --gray-600: #475569;
            --gray-500: #64748b;
            --gray-300: #cbd5e1;
            --gray-200: #e2e8f0;
            --gray-100: #f8fafc;
            --gray-50:  #fcfdfd;
            --white: #ffffff;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.07);
            --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.10);
            --transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: 'Montserrat', 'Noto Sans SC', sans-serif;
            color: var(--gray-700);
            background: var(--white);
            line-height: 1.8;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        /* 页面宽度控制在 80%，最大 1440px */
        .container {
            width: 80%;
            max-width: 1440px;
            margin: 0 auto;
        }

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

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

        /* ============================
           HTML5 Animation Classes
        ============================ */
        .fade-in {
            opacity: 0;
            transform: translateY(35px);
            transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .fade-in-left {
            opacity: 0;
            transform: translateX(-50px);
            transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .fade-in-left.visible {
            opacity: 1;
            transform: translateX(0);
        }
        .fade-in-right {
            opacity: 0;
            transform: translateX(50px);
            transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .fade-in-right.visible {
            opacity: 1;
            transform: translateX(0);
        }
        .scale-in {
            opacity: 0;
            transform: scale(0.95);
            transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .scale-in.visible {
            opacity: 1;
            transform: scale(1);
        }

        /* ============================
           Top Bar
        ============================ */
        .top-bar {
            background: var(--gray-900);
            color: var(--gray-400, #94a3b8);
            font-size: 0.8rem;
            padding: 9px 0;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            letter-spacing: 0.3px;
        }
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .top-bar a {
            color: #94a3b8;
        }
        .top-bar a:hover {
            color: var(--accent);
        }
        .top-bar .contact-info span {
            margin-right: 26px;
        }
        .top-bar .contact-info i {
            margin-right: 6px;
            color: var(--primary);
        }
        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .cert-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(10, 126, 140, 0.2);
            color: #5eead4;
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.72rem;
            letter-spacing: 0.5px;
        }
        .lang-switch {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .lang-switch a {
            text-decoration: none;
            display: inline-flex;
        }
        .lang-switch button {
            background: none;
            border: 1px solid #475569;
            color: #94a3b8;
            padding: 2px 10px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 0.72rem;
            font-family: inherit;
            transition: var(--transition);
        }
        .lang-switch button:hover,
        .lang-switch button.active {
            background: var(--primary);
            border-color: var(--primary);
            color: var(--white);
        }

        /* ============================
           Header & Navigation
        ============================ */
        header {
            background: rgba(255, 255, 255, 0.98);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: var(--transition);
            border-bottom: 1px solid var(--gray-200);
        }
        header.scrolled {
            box-shadow: var(--shadow-md);
            border-bottom: 1px solid transparent;
        }
        header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
        }
        .logo {
            display: inline-flex;
            align-items: center;
        }
        .logo a {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }
        .site-logo-img {
            height: 46px;
            width: auto;
            max-width: 160px;
            object-fit: contain;
            display: block;
            transition: transform 0.25s ease;
        }
        .logo a:hover .site-logo-img {
            transform: scale(1.03);
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .logo-text .logo-title,
        .logo-text h1 {
            font-size: 1.22rem;
            font-weight: 700;
            color: var(--gray-900);
            letter-spacing: 1.2px;
            line-height: 1.2;
            margin: 0;
            display: block;
        }
        .logo-text p {
            font-size: 0.65rem;
            color: var(--gray-500);
            letter-spacing: 1.2px;
            text-transform: uppercase;
            font-weight: 500;
            margin: 2px 0 0 0;
            line-height: 1;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        nav ul {
            display: flex;
            list-style: none;
            gap: 4px;
            align-items: center;
        }
        nav ul li a {
            padding: 9px 18px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--gray-700);
            border-radius: 6px;
            position: relative;
            letter-spacing: 0.3px;
        }
        nav ul li a::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
            border-radius: 2px;
        }
        nav ul li a:hover {
            color: var(--primary);
        }
        nav ul li a:hover::after {
            width: 22px;
        }
        nav ul li a.active {
            color: var(--primary);
            background: var(--primary-light);
        }
        nav ul li a.active::after {
            width: 22px;
        }
        nav ul li a.nav-lang-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--primary);
            background: rgba(10, 126, 140, 0.08);
            border: 1px solid rgba(10, 126, 140, 0.28);
            padding: 6px 14px;
            border-radius: 20px;
            margin-left: 8px;
            transition: var(--transition);
            letter-spacing: 0.5px;
        }
        nav ul li a.nav-lang-btn i {
            font-size: 0.88rem;
        }
        nav ul li a.nav-lang-btn:hover {
            background: var(--primary);
            color: var(--white);
            border-color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(10, 126, 140, 0.25);
        }
        nav ul li a.nav-lang-btn::after {
            display: none;
        }
        @media (max-width: 992px) {
            nav ul li a.nav-lang-btn {
                margin-left: 0;
                margin-top: 10px;
                display: inline-flex;
                width: fit-content;
                padding: 8px 18px;
            }
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--gray-800);
            cursor: pointer;
        }

        /* ============================
           Hero Banner Carousel (3 Real HD Photos)
        ============================ */
        .hero {
            position: relative;
            width: 100%;
            height: 76vh;
            min-height: 520px;
            max-height: 760px;
            overflow: hidden;
            background: var(--gray-900);
        }
        .hero-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 1.2s ease-in-out;
            pointer-events: none;
        }
        .hero-slide.active {
            opacity: 1;
            pointer-events: all;
        }
        .hero-slide img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transform: scale(1.04);
            transition: transform 7s ease-out;
        }
        .hero-slide.active img {
            transform: scale(1);
        }
        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, rgba(15, 23, 42, 0.82) 0%, rgba(15, 23, 42, 0.45) 55%, rgba(10, 126, 140, 0.15) 100%);
            display: flex;
            align-items: center;
        }
        .hero-content {
            width: 80%;
            max-width: 1440px;
            margin: 0 auto;
            color: var(--white);
            position: relative;
            z-index: 2;
        }
        .hero-content .tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(39, 174, 96, 0.22);
            border: 1px solid rgba(46, 204, 113, 0.45);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.78rem;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 22px;
            backdrop-filter: blur(10px);
            animation: fadeInDown 0.9s ease both;
        }
        .hero-content .tag i {
            color: #4ade80;
        }
        .hero-content h2 {
            font-size: 3.2rem;
            font-weight: 700;
            line-height: 1.22;
            margin-bottom: 20px;
            max-width: 720px;
            animation: fadeInDown 0.9s ease 0.2s both;
            text-shadow: 0 3px 25px rgba(0, 0, 0, 0.4);
        }
        .hero-content p {
            font-size: 1.1rem;
            max-width: 580px;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.85;
            margin-bottom: 34px;
            font-weight: 300;
            animation: fadeInDown 0.9s ease 0.4s both;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            animation: fadeInDown 0.9s ease 0.6s both;
        }

        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Banner navigation */
        .hero-dots {
            position: absolute;
            bottom: 35px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 12px;
            z-index: 10;
        }
        .hero-dot {
            width: 36px;
            height: 4px;
            background: rgba(255, 255, 255, 0.35);
            border-radius: 4px;
            cursor: pointer;
            transition: var(--transition);
            border: none;
        }
        .hero-dot.active {
            background: var(--white);
            width: 56px;
        }
        .hero-arrows {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 80%;
            max-width: 1440px;
            left: 50%;
            margin-left: -40%;
            display: flex;
            justify-content: space-between;
            z-index: 10;
            pointer-events: none;
        }
        .hero-arrow {
            width: 48px;
            height: 48px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            pointer-events: all;
        }
        .hero-arrow:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: scale(1.08);
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 600;
            font-family: inherit;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            letter-spacing: 0.4px;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--white);
            box-shadow: 0 4px 18px rgba(10, 126, 140, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(10, 126, 140, 0.45);
        }
        .btn-outline {
            background: transparent;
            color: var(--white);
            border: 2px solid rgba(255, 255, 255, 0.6);
        }
        .btn-outline:hover {
            background: var(--white);
            color: var(--primary);
            border-color: var(--white);
        }

        /* ============================
           Section Common Styles (Generous Whitespace)
        ============================ */
        section {
            padding: 95px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }
        .section-header .label {
            display: inline-block;
            font-size: 0.76rem;
            font-weight: 600;
            letter-spacing: 4px;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
            position: relative;
        }
        .section-header .label::before,
        .section-header .label::after {
            content: '';
            position: absolute;
            top: 50%;
            width: 28px;
            height: 1px;
            background: var(--primary);
        }
        .section-header .label::before {
            right: calc(100% + 14px);
        }
        .section-header .label::after {
            left: calc(100% + 14px);
        }
        .section-header h2 {
            font-size: 2.3rem;
            font-weight: 700;
            color: var(--gray-900);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .section-header p {
            font-size: 1rem;
            color: var(--gray-500);
            max-width: 650px;
            margin: 0 auto;
            font-weight: 400;
            line-height: 1.7;
        }

        /* ============================
           About Section (Realistic Workshop / Testing)
        ============================ */
        .about-section {
            background: var(--gray-100);
        }
        .about-section .section-header p,
        .about-header-desc {
            max-width: 1100px;
            white-space: nowrap;
        }
        @media (max-width: 900px) {
            .about-section .section-header p,
            .about-header-desc {
                white-space: normal;
                max-width: 650px;
            }
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 70px;
            align-items: center;
        }
        .about-image {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .about-image img {
            width: 100%;
            height: 480px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .about-image:hover img {
            transform: scale(1.03);
        }
        .about-image .cert-badge {
            position: absolute;
            bottom: 24px;
            right: 24px;
            background: linear-gradient(135deg, var(--primary) 0%, #16a34a 100%);
            color: white;
            padding: 18px 24px;
            border-radius: var(--radius-sm);
            text-align: center;
            box-shadow: 0 10px 25px rgba(10, 126, 140, 0.35);
        }
        .cert-badge .number {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1;
        }
        .cert-badge .text {
            font-size: 0.78rem;
            letter-spacing: 1px;
            opacity: 0.95;
            margin-top: 4px;
        }
        .about-text h3 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--gray-900);
            margin-bottom: 18px;
            line-height: 1.4;
        }
        .about-text p {
            margin-bottom: 18px;
            color: var(--gray-600);
            font-weight: 400;
            line-height: 1.85;
        }
        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
            margin: 28px 0 32px;
        }
        .about-feature {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--gray-800);
        }
        .about-feature i {
            color: var(--accent);
            font-size: 1rem;
        }

        /* ============================
           Stats Counter Section
        ============================ */
        .stats-section {
            background: linear-gradient(135deg, var(--gray-900) 0%, #064048 100%);
            color: var(--white);
            padding: 70px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 450px;
            height: 450px;
            background: radial-gradient(circle, rgba(39, 174, 96, 0.12), transparent 70%);
            border-radius: 50%;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .stat-item {
            padding: 20px;
        }
        .stat-icon {
            font-size: 1.8rem;
            color: #4ade80;
            margin-bottom: 14px;
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 700;
            line-height: 1;
            margin-bottom: 8px;
            letter-spacing: 1px;
        }
        .stat-number .counter-suffix {
            font-size: 1.5rem;
            font-weight: 400;
            opacity: 0.8;
        }
        .stat-label {
            font-size: 0.85rem;
            opacity: 0.8;
            letter-spacing: 0.5px;
        }

        /* ============================
           Products Section (6 Collections, 100% Real Match)
        ============================ */
        .products-section {
            background: var(--white);
        }
        .products-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .product-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--gray-200);
            position: relative;
        }
        .product-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .product-card .image-wrapper {
            height: 290px;
            overflow: hidden;
            position: relative;
            background: var(--gray-100);
        }
        .product-card .image-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .product-card:hover .image-wrapper img {
            transform: scale(1.06);
        }
        .product-card .product-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(10, 126, 140, 0.82);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: var(--transition);
        }
        .product-card:hover .product-overlay {
            opacity: 1;
        }
        .product-overlay a {
            color: white;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            border: 2px solid white;
            padding: 10px 26px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .product-overlay a:hover {
            background: white;
            color: var(--primary);
        }
        .product-card .product-info {
            padding: 24px;
            text-align: center;
            background: var(--white);
        }
        .product-card .product-info h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--gray-900);
            margin-bottom: 6px;
        }
        .product-card .product-info p {
            font-size: 0.84rem;
            color: var(--gray-500);
            line-height: 1.6;
        }

        /* ============================
           Core Advantages
        ============================ */
        .advantages-section {
            background: var(--gray-100);
        }
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 26px;
        }
        .advantage-card {
            background: var(--white);
            padding: 42px 28px;
            border-radius: var(--radius);
            text-align: center;
            transition: var(--transition);
            border: 1px solid var(--gray-200);
            position: relative;
            overflow: hidden;
        }
        .advantage-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), #16a34a);
            transform: scaleX(0);
            transition: transform 0.4s ease;
        }
        .advantage-card:hover::before {
            transform: scaleX(1);
        }
        .advantage-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .advantage-icon {
            width: 68px;
            height: 68px;
            background: var(--primary-light);
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 22px;
            font-size: 1.5rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .advantage-card:hover .advantage-icon {
            background: linear-gradient(135deg, var(--primary), #16a34a);
            color: white;
            transform: rotateY(180deg);
        }
        .advantage-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--gray-900);
            margin-bottom: 12px;
        }
        .advantage-card p {
            font-size: 0.84rem;
            color: var(--gray-500);
            line-height: 1.7;
        }

        /* ============================
           Application Showcase (Real Photos)
        ============================ */
        .showcase-section {
            background: var(--white);
        }
        .showcase-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            grid-template-rows: 270px 270px;
            gap: 18px;
        }
        .showcase-item {
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
            cursor: pointer;
            background: var(--gray-100);
        }
        .showcase-item:nth-child(1) {
            grid-column: span 2;
            grid-row: span 2;
        }
        .showcase-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .showcase-item:hover img {
            transform: scale(1.05);
        }
        .showcase-item .showcase-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            padding: 35px 22px 22px;
            background: linear-gradient(transparent, rgba(15, 23, 42, 0.85));
            color: white;
            transform: translateY(100%);
            transition: transform 0.4s ease;
        }
        .showcase-item:hover .showcase-overlay {
            transform: translateY(0);
        }
        .showcase-overlay h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .showcase-overlay p {
            font-size: 0.82rem;
            opacity: 0.88;
        }

        /* ============================
           Company News
        ============================ */
        .news-section {
            background: var(--gray-100);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .news-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--gray-200);
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .news-card .news-image {
            height: 220px;
            overflow: hidden;
            background: var(--gray-200);
        }
        .news-card .news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card:hover .news-image img {
            transform: scale(1.05);
        }
        .news-card .news-body {
            padding: 26px;
        }
        .news-card .news-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            color: var(--gray-500);
            margin-bottom: 12px;
        }
        .news-card .news-date i {
            color: var(--primary);
        }
        .news-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--gray-900);
            margin-bottom: 10px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card p {
            font-size: 0.85rem;
            color: var(--gray-500);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.84rem;
            font-weight: 600;
            color: var(--primary);
            margin-top: 16px;
            transition: var(--transition);
        }
        .news-card .read-more:hover {
            gap: 10px;
            color: var(--accent);
        }

        /* ============================
           Customer Service
        ============================ */
        .service-section {
            background: var(--white);
        }
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .service-card {
            background: var(--gray-100);
            border-radius: var(--radius);
            padding: 42px 32px;
            text-align: center;
            transition: var(--transition);
            border: 1px solid var(--gray-200);
        }
        .service-card:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-6px);
            box-shadow: 0 20px 40px rgba(10, 126, 140, 0.28);
            border-color: transparent;
        }
        .service-card .service-icon {
            width: 64px;
            height: 64px;
            background: rgba(10, 126, 140, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.5rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .service-card:hover .service-icon {
            background: rgba(255, 255, 255, 0.2);
            color: white;
        }
        .service-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--gray-900);
            margin-bottom: 12px;
            transition: var(--transition);
        }
        .service-card:hover h3 {
            color: white;
        }
        .service-card p {
            font-size: 0.85rem;
            color: var(--gray-500);
            line-height: 1.75;
            transition: var(--transition);
        }
        .service-card:hover p {
            color: rgba(255, 255, 255, 0.9);
        }

        /* ============================
           CTA Banner
        ============================ */
        .cta-section {
            background: linear-gradient(135deg, var(--gray-900) 0%, var(--primary-dark) 60%, #15803d 100%);
            padding: 85px 0;
            text-align: center;
            color: white;
            position: relative;
            overflow: hidden;
        }
        .cta-section h2 {
            font-size: 2.3rem;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.9;
            max-width: 960px;
            margin: 0 auto 32px;
            font-weight: 300;
            line-height: 1.8;
        }
        @media (min-width: 850px) {
            .cta-section p {
                white-space: nowrap;
            }
        }
        .btn-white {
            background: #ffffff;
            color: var(--primary);
            font-weight: 600;
            border: 2px solid #ffffff;
            transition: var(--transition);
        }
        .btn-white:hover {
            background: var(--gray-900);
            border-color: var(--gray-900);
            color: #ffffff !important;
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
        }
        .btn-white:hover * {
            color: #ffffff !important;
        }

        .cta-section .btn-outline {
            background: transparent;
            color: #ffffff !important;
            border: 2px solid rgba(255, 255, 255, 0.9);
            font-weight: 600;
            transition: var(--transition);
        }
        .cta-section .btn-outline:hover {
            background: #ffffff !important;
            color: var(--primary) !important;
            border-color: #ffffff !important;
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        }
        .cta-section .btn-outline:hover * {
            color: var(--primary) !important;
        }

        /* ============================
           Contact Section (Real Info from xing-nan.com/gb/contact.asp)
        ============================ */
        .contact-section {
            background: var(--white);
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: start;
        }
        .contact-info-list {
            list-style: none;
        }
        .contact-info-list li {
            display: flex;
            gap: 20px;
            padding: 22px 0;
            border-bottom: 1px solid var(--gray-200);
        }
        .contact-info-list li:last-child {
            border-bottom: none;
        }
        .contact-info-list .icon-box {
            width: 50px;
            height: 50px;
            background: var(--primary-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--primary);
            flex-shrink: 0;
        }
        .contact-info-list h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--gray-900);
            margin-bottom: 4px;
        }
        .contact-info-list p {
            font-size: 0.88rem;
            color: var(--gray-600);
            line-height: 1.7;
        }
        .contact-info-list a {
            color: var(--primary);
        }
        .contact-info-list a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .contact-form {
            background: var(--gray-100);
            padding: 38px;
            border-radius: var(--radius);
            border: 1px solid var(--gray-200);
        }
        .contact-form h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--gray-900);
            margin-bottom: 22px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 13px 16px;
            border: 1px solid var(--gray-300);
            border-radius: var(--radius-sm);
            font-size: 0.88rem;
            font-family: inherit;
            transition: var(--transition);
            background: white;
            color: var(--gray-900);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(10, 126, 140, 0.12);
        }
        .form-group textarea {
            height: 120px;
            resize: vertical;
        }

        /* ============================
           Footer
        ============================ */
        footer {
            background: var(--gray-900);
            color: var(--gray-400, #94a3b8);
            padding: 70px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 50px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .footer-logo-wrap {
            display: inline-flex;
            align-items: center;
            margin-bottom: 18px;
        }
        .footer-brand .footer-logo-wrap a {
            display: inline-flex;
            align-items: center;
            gap: 14px;
            text-decoration: none;
        }
        .footer-logo-card {
            background: rgba(255, 255, 255, 0.96);
            padding: 5px 12px;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            transition: var(--transition);
        }
        .footer-brand .footer-logo-wrap:hover .footer-logo-card {
            background: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
        }
        .footer-logo-card .site-logo-img {
            height: 40px;
        }
        .footer-brand .logo-text h3 {
            color: #ffffff;
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0;
            letter-spacing: 1.2px;
            line-height: 1.2;
        }
        .footer-brand .logo-text p {
            color: #94a3b8;
            font-size: 0.65rem;
            letter-spacing: 1.2px;
            text-transform: uppercase;
            font-weight: 500;
            margin: 3px 0 0 0;
            line-height: 1;
        }
        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.8;
            margin-bottom: 20px;
            color: #94a3b8;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: #94a3b8;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-2px);
        }
        .footer-column h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 22px;
            letter-spacing: 0.4px;
        }
        .footer-column ul {
            list-style: none;
        }
        .footer-column ul li {
            margin-bottom: 12px;
        }
        .footer-column ul li a {
            font-size: 0.85rem;
            color: #94a3b8;
            transition: var(--transition);
        }
        .footer-column ul li a:hover {
            color: #4ade80;
            padding-left: 5px;
        }
        .footer-bottom {
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.78rem;
            color: #64748b;
        }
        .footer-bottom a {
            color: #94a3b8;
        }
        .footer-bottom a:hover {
            color: #4ade80;
        }

        /* Back to top */
        .back-to-top {
            position: fixed;
            bottom: 35px;
            right: 35px;
            width: 46px;
            height: 46px;
            background: var(--primary);
            color: white;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 18px rgba(10, 126, 140, 0.35);
            transition: var(--transition);
            opacity: 0;
            visibility: hidden;
            z-index: 999;
        }
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
        }

        /* Preloader */
        .preloader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 9999;
            transition: opacity 0.5s ease, visibility 0.5s ease;
        }
        .preloader.hidden {
            opacity: 0;
            visibility: hidden;
        }
        .preloader-spinner {
            width: 46px;
            height: 46px;
            border: 3px solid var(--gray-200);
            border-top-color: var(--primary);
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }
        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        /* Responsive Breakpoints */
        @media (max-width: 1200px) {
            .container { width: 88%; }
        }
        @media (max-width: 992px) {
            .container { width: 92%; }
            .hero-content h2 { font-size: 2.3rem; }
            .about-grid { grid-template-columns: 1fr; gap: 40px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .products-grid { grid-template-columns: repeat(2, 1fr); }
            .advantages-grid { grid-template-columns: repeat(2, 1fr); }
            .showcase-grid { grid-template-columns: repeat(2, 1fr); grid-template-rows: auto; }
            .showcase-item:nth-child(1) { grid-column: span 2; }
            .news-grid { grid-template-columns: repeat(2, 1fr); }
            .news-grid .news-card:nth-child(3) { display: none; }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .contact-grid { grid-template-columns: 1fr; }
            nav ul {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 20px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 999;
            }
            nav ul.open { transform: translateY(0); }
            .menu-toggle { display: block; }
        }
        @media (max-width: 768px) {
            section { padding: 65px 0; }
            .section-header h2 { font-size: 1.8rem; }
            .hero { height: 60vh; min-height: 420px; }
            .hero-content h2 { font-size: 1.8rem; }
            .hero-content p { font-size: 0.92rem; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-number { font-size: 2.2rem; }
            .products-grid { grid-template-columns: 1fr; }
            .advantages-grid { grid-template-columns: 1fr; }
            .service-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .news-grid .news-card:nth-child(3) { display: block; }
            .footer-grid { grid-template-columns: 1fr; gap: 30px; }
            .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
            .top-bar .contact-info { display: none; }
            .form-row { grid-template-columns: 1fr; }
            .showcase-grid { grid-template-columns: 1fr; }
            .showcase-item:nth-child(1) { grid-column: span 1; grid-row: span 1; }
        }
    
/* ===================================================
   SUBPAGE SHARED & COMPONENT STYLES
   Modern World-500 Space Aesthetics
=================================================== */

/* Subpage Hero Banner */
.subpage-hero {
    position: relative;
    width: 100%;
    height: 420px;
    min-height: 360px;
    display: flex;
    align-items: center;
    background-color: var(--gray-900);
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

.subpage-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, rgba(15, 23, 42, 0.88) 0%, rgba(15, 23, 42, 0.65) 50%, rgba(10, 126, 140, 0.45) 100%);
    z-index: 1;
}

.subpage-hero-content {
    position: relative;
    z-index: 2;
    color: var(--white);
}

.breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 6px 18px;
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.85);
    transition: var(--transition);
}

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

.breadcrumb span.current {
    color: #5eead4;
    font-weight: 600;
}

.subpage-hero-title {
    font-size: 2.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    line-height: 1.25;
    margin-bottom: 14px;
    color: var(--white);
}

.subpage-hero-desc {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 780px;
    line-height: 1.8;
    font-weight: 300;
}

/* Page Section General Padding */
.subpage-section {
    padding: 90px 0;
}

.bg-light-gray {
    background-color: var(--gray-100);
}

/* Tab Navigation / Filter Bars */
.filter-tabs-wrapper {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 45px;
}

.filter-tab-btn {
    padding: 10px 24px;
    border-radius: 30px;
    border: 1px solid var(--gray-200);
    background: var(--white);
    color: var(--gray-700);
    font-size: 0.92rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.filter-tab-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.filter-tab-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
    box-shadow: 0 6px 20px rgba(10, 126, 140, 0.28);
}

/* Product Catalog Grid */
.catalog-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.catalog-card {
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}

.catalog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.catalog-card-img-wrap {
    position: relative;
    width: 100%;
    padding-top: 85%;
    background: #f1f5f9;
    overflow: hidden;
}

.catalog-card-img-wrap img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 18px;
    transition: transform 0.5s ease;
}

.catalog-card:hover .catalog-card-img-wrap img {
    transform: scale(1.08);
}

.catalog-card-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(15, 23, 42, 0.75);
    color: #5eead4;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.72rem;
    backdrop-filter: blur(6px);
    font-weight: 500;
}

.catalog-card-body {
    padding: 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.catalog-card-model {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.catalog-card-series {
    font-size: 0.8rem;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.catalog-specs-table {
    width: 100%;
    font-size: 0.82rem;
    color: var(--gray-600);
    margin-bottom: 18px;
    border-top: 1px dashed var(--gray-200);
    padding-top: 10px;
}

.catalog-specs-row {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
}

.catalog-specs-row span.label {
    color: var(--gray-400);
}

.catalog-card-footer {
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid var(--gray-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.catalog-card-footer .cert-pill {
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 4px;
}

.catalog-card-footer .view-btn {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.catalog-card-footer .view-btn:hover {
    color: var(--accent);
    transform: translateX(4px);
}

/* Interactive Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-dialog {
    background: var(--white);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    position: relative;
    transform: scale(0.95);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal-dialog {
    transform: scale(1);
}

.modal-close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--gray-100);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--gray-700);
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
}

.modal-close-btn:hover {
    background: var(--gray-900);
    color: var(--white);
    transform: rotate(90deg);
}

.modal-body {
    padding: 36px;
}

/* Timeline Components */
.milestone-timeline {
    position: relative;
    padding: 40px 0;
}

.milestone-timeline::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary), var(--accent), var(--gray-300));
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 50px;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 50px;
    text-align: left;
}

.timeline-node {
    position: absolute;
    top: 8px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--white);
    border: 4px solid var(--primary);
    box-shadow: 0 0 0 6px var(--primary-light);
    z-index: 2;
}

.timeline-item:nth-child(odd) .timeline-node {
    right: -11px;
}

.timeline-item:nth-child(even) .timeline-node {
    left: -11px;
}

.timeline-card {
    background: var(--white);
    padding: 26px;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.timeline-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
    transform: translateY(-4px);
}

.timeline-year {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

/* Service Workflow Grid */
.workflow-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.workflow-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 34px 28px;
    position: relative;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.workflow-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.workflow-step-badge {
    position: absolute;
    top: -16px;
    left: 28px;
    background: linear-gradient(135deg, var(--primary), #16a34a);
    color: var(--white);
    font-weight: 700;
    font-size: 0.85rem;
    padding: 4px 16px;
    border-radius: 20px;
    box-shadow: 0 4px 12px rgba(10, 126, 140, 0.35);
}

/* FAQ Accordion */
.accordion-wrapper {
    max-width: 960px;
    margin: 0 auto;
}

.accordion-item {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}

.accordion-item.active {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.accordion-header {
    padding: 22px 28px;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--gray-800);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    transition: var(--transition);
}

.accordion-header:hover {
    color: var(--primary);
}

.accordion-header i {
    transition: transform 0.35s ease;
    color: var(--primary);
}

.accordion-item.active .accordion-header i {
    transform: rotate(180deg);
}

.accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), padding 0.3s ease;
    padding: 0 28px;
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.8;
}

.accordion-item.active .accordion-body {
    max-height: 500px;
    padding: 0 28px 24px 28px;
}

/* Contact Info Extended */
.contact-office-card {
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    padding: 36px;
    box-shadow: var(--shadow-sm);
}

.transit-guide-box {
    margin-top: 30px;
    padding: 24px;
    background: var(--primary-light);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--primary);
}

/* Responsive Overrides */
@media (max-width: 1200px) {
    .catalog-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .workflow-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 860px) {
    .catalog-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .workflow-grid {
        grid-template-columns: 1fr;
    }
    .milestone-timeline::before {
        left: 20px;
    }
    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 55px !important;
        padding-right: 0 !important;
        text-align: left !important;
    }
    .timeline-node {
        left: 10px !important;
        right: auto !important;
    }
    .subpage-hero {
        height: 340px;
    }
    .subpage-hero-title {
        font-size: 2rem;
    }
}

@media (max-width: 540px) {
    .catalog-grid {
        grid-template-columns: 1fr;
    }
    .filter-tabs-wrapper {
        gap: 8px;
    }
    .filter-tab-btn {
        padding: 8px 16px;
        font-size: 0.82rem;
    }
}

/* =========================================
   Engineering Performance Table (Specifications)
   ========================================= */
.specs-performance-container {
    margin-top: 10px;
    padding: 20px;
    background: #ffffff;
    border-radius: var(--radius, 12px);
    border: 1px solid var(--gray-200, #e2e8f0);
    box-shadow: 0 1px 4px rgba(0,0,0,0.03);
}
.specs-table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    background: #ffffff;
}
.specs-matrix-table {
    width: 100%;
    min-width: 580px;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: center;
}
.specs-matrix-table th {
    background: #f8fafc;
    color: #0f172a;
    font-weight: 700;
    padding: 12px 14px;
    border: 1px solid #e2e8f0;
    white-space: nowrap;
}
.specs-matrix-table td {
    padding: 12px 14px;
    border: 1px solid #e2e8f0;
    color: #334155;
}
.specs-matrix-table tbody tr:nth-child(even) {
    background: #fafbfc;
}
.specs-matrix-table tbody tr:hover {
    background: #f0fdf4;
}

/* FontAwesome icon alias for lamp / table & floor lamps */
.fa-lamp::before {
    content: "\f0eb";
}