:root {
            /* Chinese Imperial Color Palette */
            --imperial-red: #b91c1c;
            /* Primary Red */
            --dark-red: #7f1d1d;
            /* Deep Crimson */
            --gold-accent: #d97706;
            /* Imperial Gold */
            --gold-light: #f59e0b;
            /* Bright Gold */
            --porcelain-bg: rgba(249, 250, 240, 0.86);
            /* Clearer / Lighter Porcelain Overlay */
            --card-bg: rgba(255, 255, 255, 0.2);
            /* Highly Transparent Glass Card Background */
            --text-dark: #1c1917;
            --text-muted: #44403c;
            --border-gold: rgba(217, 119, 6, 0.35);
            --radius-md: 12px;
            --radius-lg: 16px;
            --header-height: 80px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Plus Jakarta Sans', sans-serif;
            color: var(--text-dark);
            background: linear-gradient(135deg, rgba(184, 89, 89, 0.4), rgba(209, 138, 138, 0.24)),
                url('https://images.unsplash.com/photo-1504307651254-35680f356dfd?auto=format&fit=crop&w=1920&q=80') center/cover no-repeat fixed;
            min-height: 100vh;
            padding-top: calc(var(--header-height) + 16px);
            padding-bottom: 24px;
            padding-left: 12px;
            padding-right: 12px;
        }

        /* ------------------------------------
           RESPONSIVE STICKY HEADER
        ------------------------------------ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 clamp(16px, 4vw, 60px);
            background: rgba(250, 246, 240, 0.37);
            /* Transparent Header */
            border-bottom: 2px solid var(--gold-accent);
            z-index: 1000;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }

        .header-brand {
            display: flex;
            align-items: center;
            gap: 14px;
            text-decoration: none;
        }

        .contact-section {
            padding: clamp(40px, 6vw, 80px) clamp(20px, 5vw, 60px);
            border-top: 1px solid var(--border-gold);
            background: rgba(255, 255, 255, 0.4);
        }

        .contact-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 40px;
            max-width: 1100px;
            margin: 0 auto;
            align-items: start;
        }

        /* Contact Info Card */
        .contact-info {
            background: rgba(255, 255, 255, 0.6);
            backdrop-filter: blur(10px);
            padding: 30px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-gold);
        }

        .contact-info h3 {
            font-size: 1.35rem;
            color: var(--dark-red);
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .contact-info-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .contact-info-item {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .contact-info-item strong {
            color: var(--text-dark);
        }

        /* Contact Form Styling */
        .contact-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            width: 100%;
            background: rgba(255, 255, 255, 0.6);
            backdrop-filter: blur(10px);
            padding: 30px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-gold);
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
            width: 100%;
        }

        .form-group label {
            display: block;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-dark);
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            box-sizing: border-box;
            display: block;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--border-gold);
            background: #ffffff;
            font-family: inherit;
            font-size: 0.92rem;
            color: var(--text-dark);
            outline: none;
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--imperial-red);
            box-shadow: 0 0 0 3px rgba(185, 28, 28, 0.15);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }

        .logo-img {
            height: clamp(38px, 5vw, 48px);
            width: auto;
            object-fit: contain;
            border-radius: 6px;
            border: 1px solid var(--border-gold);
        }

        .brand-text h1 {
            font-family: 'Playfair Display', serif;
            font-size: clamp(0.95rem, 2vw, 1.2rem);
            font-weight: 700;
            color: var(--dark-red);
            letter-spacing: 0.5px;
            line-height: 1.1;
        }

        .brand-text p {
            font-size: clamp(0.6rem, 1.2vw, 0.75rem);
            color: var(--gold-accent);
            font-weight: 700;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .cn-title {
            font-family: 'Noto Serif SC', serif;
            font-size: 0.85rem;
            color: var(--imperial-red);
            font-weight: 700;
            margin-left: 4px;
        }

        /* DESKTOP NAV LINKS */
        .nav-links {
            display: flex;
            gap: clamp(14px, 2vw, 32px);
            list-style: none;
            align-items: center;
            transition: all 0.3s ease;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--text-dark);
            font-size: 0.9rem;
            font-weight: 600;
            transition: color 0.2s;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--imperial-red);
        }

        /* MOBILE HAMBURGER BUTTON */
        .hamburger-btn {
            display: none;
            background: rgba(250, 246, 240, 0.6);
            border: 1px solid var(--gold-accent);
            color: var(--dark-red);
            font-size: 1.6rem;
            width: 42px;
            height: 42px;
            border-radius: 6px;
            cursor: pointer;
            justify-content: center;
            align-items: center;
            transition: all 0.2s ease;
        }

        .hamburger-btn:hover {
            background: rgba(217, 119, 6, 0.15);
            color: var(--imperial-red);
        }

        /* ------------------------------------
           PAGE WRAPPER (CLEARER & SMOOTH)
        ------------------------------------ */
        .page-wrapper {
            max-width: 1400px;
            margin: 0 auto;
            background: var(--porcelain-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
            border: 1px solid var(--border-gold);
        }

        /* Typography */
        h1,
        h2,
        h3,
        .serif-title {
            font-family: 'Playfair Display', serif;
            font-weight: 600;
            color: var(--text-dark);
        }

        .btn-primary {
            display: inline-block;
            background: linear-gradient(135deg, var(--imperial-red), var(--dark-red));
            color: #ffffff;
            padding: 12px 30px;
            border-radius: 30px;
            text-decoration: none;
            font-size: 0.88rem;
            font-weight: 600;
            transition: all 0.3s ease;
            border: 1px solid var(--gold-accent);
            cursor: pointer;
            text-align: center;
            box-shadow: 0 4px 12px rgba(185, 28, 28, 0.25);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, var(--dark-red), #500707);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(185, 28, 28, 0.4);
            border-color: var(--gold-light);
        }

        /* ------------------------------------
           1. HERO SECTION
        ------------------------------------ */
        .hero-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            min-height: 540px;
        }

        .hero-left {
            padding: clamp(30px, 6vw, 70px) clamp(20px, 5vw, 60px);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: flex-start;
        }

        .hero-logo-box {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 24px;
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(10px);
            border: 2px solid var(--gold-accent);
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(217, 119, 6, 0.15);
        }

        .hero-logo-img {
            height: 52px;
            width: auto;
            object-fit: contain;
        }

        .hero-logo-text h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--dark-red);
            line-height: 1.1;
        }

        .hero-logo-text span {
            font-family: 'Noto Serif SC', serif;
            font-size: 0.75rem;
            color: var(--gold-accent);
            font-weight: 700;
        }

        .hero-title {
            font-size: clamp(2.2rem, 5vw, 3.4rem);
            line-height: 1.15;
            margin-bottom: 24px;
            color: var(--dark-red);
        }

        .hero-thumbs {
            display: flex;
            gap: 16px;
            margin-bottom: 28px;
            width: 100%;
        }

        .hero-thumb-img {
            width: clamp(100px, 20vw, 140px);
            height: clamp(120px, 22vw, 160px);
            object-fit: cover;
            border-radius: 8px;
            border: 2px solid var(--gold-accent);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .hero-subtext {
            font-size: clamp(0.85rem, 1.5vw, 0.95rem);
            color: var(--text-muted);
            max-width: 420px;
            line-height: 1.6;
            margin-bottom: 28px;
        }

        .hero-right {
            position: relative;
            width: 100%;
            min-height: 340px;
            border-left: 2px solid var(--gold-accent);
        }

        .hero-main-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ------------------------------------
           2. ABOUT SECTION
        ------------------------------------ */
        .about-section {
            padding: clamp(40px, 6vw, 80px) clamp(20px, 5vw, 60px) 40px;
            text-align: center;
            max-width: 850px;
            margin: 0 auto;
        }

        .about-title {
            font-size: clamp(2rem, 4vw, 2.8rem);
            color: var(--dark-red);
            margin-bottom: 8px;
        }

        .cn-subtitle {
            font-family: 'Noto Serif SC', serif;
            color: var(--gold-accent);
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }

        .about-subtitle {
            font-size: clamp(0.9rem, 1.5vw, 1rem);
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-dark);
        }

        .about-description {
            font-size: clamp(0.85rem, 1.3vw, 0.92rem);
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .about-banner {
            width: 100%;
            height: clamp(240px, 40vw, 460px);
            object-fit: cover;
            margin-top: 20px;
            border-top: 2px solid var(--gold-accent);
            border-bottom: 2px solid var(--gold-accent);
        }

        /* ------------------------------------
           3. EXPERTISE, ASSETS & PROJECTS GRID
        ------------------------------------ */
        .services-section,
        .assets-section,
        .projects-section {
            padding: clamp(40px, 6vw, 80px) clamp(20px, 5vw, 60px);
            border-top: 1px solid var(--border-gold);
        }

        .section-center-title {
            text-align: center;
            font-size: clamp(2rem, 4vw, 2.8rem);
            color: var(--dark-red);
            margin-bottom: clamp(10px, 2vw, 16px);
        }

        .section-subtitle-text {
            text-align: center;
            font-size: clamp(0.85rem, 1.3vw, 0.95rem);
            color: var(--text-muted);
            max-width: 650px;
            margin: 0 auto clamp(30px, 5vw, 50px);
            line-height: 1.6;
        }

        /* 4-COLUMN RESPONSIVE GRID FOR ASSETS */
        .interactive-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: clamp(18px, 2.5vw, 28px);
        }

        /* MORE TRANSPARENT FROSTED GLASS CARDS */
        .interactive-card {
            background: var(--card-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(217, 119, 6, 0.4);
            cursor: pointer;
            transition: all 0.35s cubic-bezier(0.165, 0.84, 0.44, 1);
            display: flex;
            flex-direction: column;
        }

        .interactive-card:hover {
            transform: translateY(-8px);
            background: rgba(255, 255, 255, 0.85);
            box-shadow: 0 18px 36px rgba(185, 28, 28, 0.22);
            border-color: var(--imperial-red);
        }

        .card-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .card-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .interactive-card:hover .card-img-container img {
            transform: scale(1.08);
        }

        .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: linear-gradient(135deg, var(--imperial-red), var(--dark-red));
            color: white;
            font-size: 0.65rem;
            font-weight: 700;
            text-transform: uppercase;
            padding: 4px 10px;
            border-radius: 4px;
            letter-spacing: 0.5px;
            border: 1px solid var(--gold-light);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        .card-content {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--dark-red);
            transition: color 0.2s;
        }

        .interactive-card:hover .card-title {
            color: var(--imperial-red);
        }

        .card-desc {
            font-size: 0.84rem;
            color: var(--text-muted);
            line-height: 1.55;
            margin-bottom: 16px;
        }

        .card-action {
            margin-top: auto;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--gold-accent);
            text-transform: uppercase;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ------------------------------------
           4. TESTIMONIALS SECTION
        ------------------------------------ */
        .testimonials-section {
            border-top: 1px solid var(--border-gold);
            background: rgba(243, 237, 226, 0.3);
        }

        .testimonials-header {
            padding: clamp(24px, 4vw, 40px) clamp(20px, 5vw, 60px);
            font-size: clamp(1.8rem, 3.5vw, 2.5rem);
            color: var(--dark-red);
            border-bottom: 1px solid var(--border-gold);
        }

        .testimonial-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            padding: clamp(20px, 4vw, 40px) clamp(20px, 5vw, 60px);
            border-bottom: 1px solid var(--border-gold);
            gap: 16px;
            align-items: center;
        }

        .testimonial-row:last-child {
            border-bottom: none;
        }

        .testimonial-author {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--dark-red);
        }

        .testimonial-quote {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            font-style: italic;
        }

        /* ------------------------------------
           RESPONSIVE POPUP MODAL
        ------------------------------------ */
        .modal-backdrop {
            position: fixed;
            inset: 0;
            background: rgba(20, 7, 7, 0.82);
            backdrop-filter: blur(8px);
            z-index: 2000;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 16px;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }

        .modal-backdrop.active {
            opacity: 1;
            pointer-events: auto;
        }

        .modal-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            width: 100%;
            max-width: 700px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
            border: 2px solid var(--gold-accent);
            transform: scale(0.92);
            transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            position: relative;
            max-height: 85vh;
            display: flex;
            flex-direction: column;
        }

        .modal-backdrop.active .modal-card {
            transform: scale(1);
        }

        .modal-close-btn {
            position: absolute;
            top: 12px;
            right: 12px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--imperial-red);
            color: white;
            border: 1px solid var(--gold-light);
            font-size: 1.3rem;
            cursor: pointer;
            z-index: 10;
            display: flex;
            justify-content: center;
            align-items: center;
            transition: background 0.2s;
        }

        .modal-close-btn:hover {
            background: var(--dark-red);
        }

        .modal-img {
            width: 100%;
            height: clamp(180px, 35vh, 320px);
            object-fit: cover;
            flex-shrink: 0;
        }

        .modal-body {
            padding: clamp(20px, 4vw, 32px);
            overflow-y: auto;
        }

        .modal-category {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            color: var(--gold-accent);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 6px;
        }

        .modal-title {
            font-size: clamp(1.4rem, 3vw, 1.8rem);
            color: var(--dark-red);
            margin-bottom: 12px;
        }

        .modal-details {
            font-size: clamp(0.85rem, 1.2vw, 0.95rem);
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        /* ------------------------------------
           MOBILE BREAKPOINTS (HAMBURGER MENU)
        ------------------------------------ */
        @media (max-width: 860px) {
            .hamburger-btn {
                display: flex;
            }

            .nav-links {
                position: absolute;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: rgba(250, 246, 240, 0.94);
                backdrop-filter: blur(16px);
                flex-direction: column;
                align-items: stretch;
                padding: 0;
                max-height: 0;
                overflow: hidden;
                border-bottom: 0px solid var(--gold-accent);
                box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
            }

            .nav-links.mobile-open {
                max-height: 380px;
                padding: 16px 0;
                border-bottom: 2px solid var(--gold-accent);
            }

            .nav-links li {
                width: 100%;
                text-align: center;
            }

            .nav-links a {
                display: block;
                padding: 12px 20px;
                font-size: 1rem;
                border-bottom: 1px solid rgba(217, 119, 6, 0.1);
            }

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

            .hero-section {
                grid-template-columns: 1fr;
            }

            .hero-right {
                height: 280px;
                border-left: none;
                border-top: 2px solid var(--gold-accent);
            }
        }