:root {
            --primary: #FF5A00;
            --primary-hover: #E04F00;
            --primary-light: #FFF0E6;
            --secondary: #FFA200;
            --dark: #1F1F1F;
            --text-main: #333333;
            --text-muted: #666666;
            --bg-light: #FFFBF7;
            --bg-white: #FFFFFF;
            --border: #FFE6D5;
            --shadow: 0 10px 30px rgba(255, 90, 0, 0.06);
            --shadow-hover: 0 15px 40px rgba(255, 90, 0, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Container Layout */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Typography */
        h1, h2, h3, h4 {
            color: var(--dark);
            font-weight: 700;
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 2px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--bg-white);
            box-shadow: 0 4px 15px rgba(255, 90, 0, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 90, 0, 0.4);
            color: var(--bg-white);
        }

        .btn-secondary {
            background-color: var(--bg-white);
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-secondary:hover {
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* Header Navigation */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .logo-area img {
            max-height: 48px;
        }

        .logo-text {
            font-size: 1.5rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-menu {
            display: flex;
            list-style: none;
        }

        .nav-link {
            color: var(--text-main);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 12px;
            border-radius: 6px;
            transition: var(--transition);
        }

        .nav-link:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-btn {
            display: inline-flex;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* Hero Section (No Image Allowed) */
        .hero-section {
            padding: 120px 0 100px;
            background: radial-gradient(circle at 90% 10%, rgba(255, 162, 0, 0.08), transparent 40%),
                        radial-gradient(circle at 10% 80%, rgba(255, 90, 0, 0.06), transparent 50%),
                        var(--bg-white);
            text-align: center;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }

        .hero-content {
            max-width: 900px;
            margin: 0 auto;
            z-index: 2;
            position: relative;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 25px;
            border: 1px solid var(--border);
        }

        .hero-title {
            font-size: 3rem;
            line-height: 1.25;
            margin-bottom: 25px;
            background: linear-gradient(135deg, var(--dark) 60%, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 1.25rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .hero-cta {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
        }

        /* Section Settings */
        .section-padding {
            padding: 90px 0;
        }

        .bg-white-sec {
            background-color: var(--bg-white);
        }

        /* Core Features Grid */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }

        /* Data Stats Card */
        .stat-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }

        .stat-num {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 10px;
        }

        .stat-label {
            font-size: 1rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* About Us Section (With Banner Image) */
        .about-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--primary);
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1.05rem;
            text-align: justify;
        }

        .about-img-container {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 4px solid var(--bg-white);
        }

        .about-img-container img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }

        .about-img-container img:hover {
            transform: scale(1.03);
        }

        /* Service Capability Card */
        .service-card {
            background-color: var(--bg-white);
            border-radius: 16px;
            padding: 35px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(to bottom, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border);
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-icon {
            width: 60px;
            height: 60px;
            border-radius: 12px;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
        }

        .service-icon svg {
            width: 30px;
            height: 30px;
            fill: var(--primary);
        }

        .service-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 15px;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .service-tag {
            font-size: 0.8rem;
            background-color: var(--bg-light);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: 4px;
            border: 1px solid var(--border);
        }

        /* Model Brand Cloud */
        .brand-cloud-section {
            background-color: var(--bg-white);
            padding: 60px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .brand-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .brand-tag {
            background-color: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 10px 20px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--dark);
            transition: var(--transition);
        }

        .brand-tag:hover {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--bg-white);
            border-color: transparent;
            transform: translateY(-2px);
        }

        /* Process Steps */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            position: relative;
        }

        .step-item {
            background-color: var(--bg-white);
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            position: relative;
            z-index: 2;
        }

        .step-num {
            position: absolute;
            top: -20px;
            left: 30px;
            width: 44px;
            height: 44px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--bg-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            box-shadow: 0 4px 10px rgba(255, 90, 0, 0.3);
        }

        .step-item h3 {
            font-size: 1.25rem;
            margin: 15px 0 10px 0;
        }

        .step-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* Case Section */
        .case-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .case-card {
            background-color: var(--bg-white);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }

        .case-img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            display: block;
        }

        .case-content {
            padding: 35px;
        }

        .case-tag {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 15px;
        }

        .case-content h3 {
            font-size: 1.6rem;
            margin-bottom: 15px;
        }

        .case-content p {
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .case-aside {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .case-side-item {
            background-color: var(--bg-white);
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border);
            display: flex;
            gap: 15px;
            align-items: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .case-side-item:hover, .case-side-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow);
            transform: translateX(5px);
        }

        .case-side-thumb {
            width: 80px;
            height: 80px;
            border-radius: 8px;
            object-fit: cover;
        }

        .case-side-info h4 {
            font-size: 1.05rem;
            margin-bottom: 5px;
        }

        .case-side-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Evaluation Section */
        .eval-container {
            background-color: var(--bg-white);
            border-radius: 20px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 45px;
        }

        .eval-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 40px;
            padding-bottom: 25px;
            border-bottom: 1px solid var(--border);
        }

        .eval-score-card {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .eval-score {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
        }

        .eval-stars {
            color: var(--secondary);
            font-size: 1.5rem;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        .compare-table th, .compare-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border);
        }

        .compare-table th {
            background-color: var(--bg-light);
            font-weight: 700;
            color: var(--dark);
        }

        .compare-table tr:hover td {
            background-color: var(--primary-light);
        }

        .compare-table td strong {
            color: var(--primary);
        }

        /* Token Price Box */
        .token-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .token-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        .token-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }

        .token-name {
            font-weight: 700;
            font-size: 1.15rem;
        }

        .token-tag {
            font-size: 0.75rem;
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 4px;
        }

        .token-price {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .token-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Training & Certification */
        .training-card {
            background-color: var(--bg-white);
            border-radius: 16px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
        }

        .training-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }

        .training-header {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            padding: 25px;
            color: var(--bg-white);
            text-align: center;
        }

        .training-header h3 {
            color: var(--bg-white);
            font-size: 1.3rem;
            margin-bottom: 5px;
        }

        .training-body {
            padding: 30px;
        }

        .training-list {
            list-style: none;
            margin-bottom: 25px;
        }

        .training-list li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 12px;
            font-size: 0.95rem;
            color: var(--text-main);
        }

        .training-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }

        /* Feedback/Comments */
        .comment-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            position: relative;
        }

        .comment-text {
            font-style: italic;
            color: var(--text-main);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .user-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }

        .user-info h4 {
            font-size: 0.95rem;
            margin-bottom: 2px;
        }

        .user-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* FAQ Accordion */
        .faq-container {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--bg-white);
            border-radius: 10px;
            border: 1px solid var(--border);
            margin-bottom: 15px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 20px 25px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            user-select: none;
        }

        .faq-icon {
            width: 20px;
            height: 20px;
            position: relative;
        }

        .faq-icon::before, .faq-icon::after {
            content: '';
            position: absolute;
            background-color: var(--primary);
            transition: var(--transition);
        }

        .faq-icon::before {
            top: 9px;
            left: 0;
            width: 20px;
            height: 2px;
        }

        .faq-icon::after {
            top: 0;
            left: 9px;
            width: 2px;
            height: 20px;
        }

        .faq-item.active .faq-icon::after {
            transform: rotate(90deg);
            opacity: 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--bg-light);
        }

        .faq-answer-content {
            padding: 20px 25px;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-top: 1px solid var(--border);
        }

        /* Interactive Troubleshooting & Encyclopedia Layout */
        .utility-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .utility-box {
            background-color: var(--bg-white);
            border-radius: 16px;
            padding: 35px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }

        .utility-box h3 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
        }

        /* Encyclopedia Term List */
        .term-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .term-item h4 {
            color: var(--primary);
            font-size: 1.05rem;
            margin-bottom: 5px;
        }

        .term-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* Troubleshooting Steps */
        .trouble-list {
            list-style: none;
        }

        .trouble-item {
            margin-bottom: 15px;
        }

        .trouble-trigger {
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            padding: 8px 12px;
            background-color: var(--bg-light);
            border-radius: 6px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .trouble-trigger:hover {
            color: var(--primary);
        }

        .trouble-solve {
            display: none;
            padding: 10px 12px;
            font-size: 0.9rem;
            color: var(--text-muted);
            border-left: 3px solid var(--primary);
            margin-top: 5px;
            background-color: var(--bg-white);
        }

        /* Contact & Form Section */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
        }

        .contact-info {
            background-color: var(--bg-white);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }

        .contact-info h3 {
            font-size: 1.6rem;
            margin-bottom: 25px;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            margin-bottom: 25px;
        }

        .contact-icon {
            width: 40px;
            height: 40px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .contact-detail h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }

        .contact-detail p, .contact-detail a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.95rem;
        }

        .qr-code-box {
            margin-top: 30px;
            padding-top: 30px;
            border-top: 1px solid var(--border);
            text-align: center;
        }

        .qr-code-box img {
            width: 150px;
            height: 150px;
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 5px;
            margin-bottom: 10px;
        }

        .qr-code-box p {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 600;
        }

        /* Matching Form */
        .form-box {
            background-color: var(--bg-white);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }

        .form-box h3 {
            font-size: 1.6rem;
            margin-bottom: 25px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: 8px;
            background-color: var(--bg-light);
            color: var(--dark);
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background-color: var(--bg-white);
            box-shadow: 0 0 0 3px var(--primary-light);
        }

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

        /* Footer Style */
        footer {
            background-color: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 80px 0 30px;
            border-top: 3px solid var(--primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-info h4 {
            color: var(--bg-white);
            font-size: 1.3rem;
            margin-bottom: 20px;
        }

        .footer-info p {
            font-size: 0.9rem;
            line-height: 1.8;
            margin-bottom: 15px;
        }

        .footer-links h4 {
            color: var(--bg-white);
            font-size: 1.1rem;
            margin-bottom: 20px;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }

        .footer-articles h4 {
            color: var(--bg-white);
            font-size: 1.1rem;
            margin-bottom: 20px;
        }

        .footer-articles .article-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-articles a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 0.9rem;
            line-height: 1.4;
            transition: var(--transition);
        }

        .footer-articles a:hover {
            color: var(--primary);
        }

        .friend-links-box {
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            margin-bottom: 30px;
        }

        .friend-links-title {
            color: var(--bg-white);
            font-size: 0.95rem;
            margin-bottom: 10px;
            font-weight: 600;
        }

        .friend-links-content {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friend-links-content a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .friend-links-content a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* Float Customer Service */
        .float-service {
            position: fixed;
            right: 25px;
            bottom: 25px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--bg-white);
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid var(--border);
            position: relative;
        }

        .float-btn:hover {
            background-color: var(--primary);
            transform: translateY(-3px);
        }

        .float-btn svg {
            width: 24px;
            height: 24px;
            fill: var(--primary);
            transition: var(--transition);
        }

        .float-btn:hover svg {
            fill: var(--bg-white);
        }

        .float-tooltip {
            position: absolute;
            right: 65px;
            background-color: var(--dark);
            color: var(--bg-white);
            padding: 8px 15px;
            border-radius: 6px;
            font-size: 0.85rem;
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }

        .float-btn:hover .float-tooltip {
            opacity: 1;
            transform: translateX(-5px);
        }

        /* Mobile Responsive */
        @media (max-width: 992px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background-color: var(--bg-white);
                border-bottom: 1px solid var(--border);
                padding: 20px;
                box-shadow: var(--shadow);
            }

            .nav-menu.active {
                display: flex;
            }

            .hamburger {
                display: flex;
            }

            .about-layout, .case-layout, .utility-layout, .contact-layout {
                grid-template-columns: 1fr;
            }

            .hero-title {
                font-size: 2.2rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }
        }