/* CSS Reset & Variables */
        :root {
            --primary: #0066ff;
            --primary-light: #e6f0ff;
            --secondary: #00f2fe;
            --accent: #ff007f;
            --text-dark: #0f172a;
            --text-muted: #64748b;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --border-color: #e2e8f0;
            --card-shadow: 0 10px 30px -10px rgba(0, 102, 255, 0.08);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

        /* Section Global Style */
        section {
            padding: 80px 0;
            position: relative;
            background-color: var(--bg-white);
        }

        section:nth-child(even) {
            background-color: var(--bg-light);
        }

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

        .section-header h2 {
            font-size: 2rem;
            color: var(--text-dark);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
            font-weight: 700;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            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);
            margin-top: 15px;
            font-size: 1.1rem;
        }

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

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            box-shadow: 0 4px 15px rgba(0, 102, 255, 0.2);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 102, 255, 0.3);
        }

        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }

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

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

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-area img {
            height: 40px;
            width: auto;
        }

        .logo-text {
            font-size: 1.3rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--text-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        nav {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .nav-links {
            display: flex;
            gap: 20px;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-dark);
            padding: 5px 0;
            position: relative;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: var(--transition);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-btn {
            padding: 8px 18px;
            font-size: 0.9rem;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            border: none;
            background: transparent;
        }

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

        /* Hero Section (No Image) */
        .hero {
            padding: 120px 0 90px 0;
            background: radial-gradient(circle at 80% 20%, rgba(0, 242, 254, 0.08) 0%, rgba(0, 102, 255, 0.02) 100%), var(--bg-white);
            text-align: center;
        }

        .hero-tag {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 20px;
            box-shadow: 0 2px 10px rgba(0,102,255,0.05);
        }

        .hero-title {
            font-size: 2.8rem;
            line-height: 1.2;
            color: var(--text-dark);
            margin-bottom: 25px;
            font-weight: 800;
        }

        .hero-title span {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            max-width: 800px;
            margin: 0 auto 40px auto;
            font-size: 1.2rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 50px;
        }

        /* Data Cards Grid */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .data-card {
            background-color: var(--bg-white);
            padding: 25px;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .data-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .data-label {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 5px;
        }

        .data-sub {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Grid Frameworks */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
            align-items: center;
        }

        /* Cards & Components */
        .card {
            background-color: var(--bg-white);
            border-radius: 16px;
            padding: 30px;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(0, 102, 255, 0.05);
            transition: var(--transition);
        }

        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px -10px rgba(0, 102, 255, 0.15);
        }

        /* Platform list badge cloud style */
        .badge-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 15px;
        }

        .badge {
            background-color: var(--primary-light);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 50px;
            transition: var(--transition);
        }

        .badge:hover {
            background-color: var(--primary);
            color: #fff;
        }

        /* 4. Workflow Timeline */
        .workflow-timeline {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
        }

        .workflow-step {
            display: flex;
            margin-bottom: 40px;
            position: relative;
        }

        .workflow-step:last-child {
            margin-bottom: 0;
        }

        .workflow-num {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            flex-shrink: 0;
            z-index: 2;
            box-shadow: 0 4px 10px rgba(0,102,255,0.2);
        }

        .workflow-content {
            margin-left: 25px;
            background-color: var(--bg-white);
            padding: 25px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
            width: 100%;
        }

        .workflow-content h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

        .workflow-content p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* Service network & tech standards components */
        .info-strip {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px;
            background-color: var(--bg-light);
            border-radius: 8px;
            margin-bottom: 15px;
            border-left: 4px solid var(--primary);
        }

        .info-strip-title {
            font-weight: 600;
            color: var(--text-dark);
        }

        /* Comparison Table style */
        .table-wrapper {
            overflow-x: auto;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border-color);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            background-color: var(--bg-white);
            text-align: left;
            min-width: 600px;
        }

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

        th {
            background-color: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
        }

        tr:last-child td {
            border-bottom: none;
        }

        .highlight-col {
            background-color: rgba(0, 102, 255, 0.02);
            font-weight: 600;
        }

        /* FAQ Accordion */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            padding: 0 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-answer {
            max-height: 1000px;
            padding: 0 20px 20px 20px;
            transition: max-height 0.5s cubic-bezier(1, 0, 1, 0);
        }

        /* Case study image layout */
        .case-gallery {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .case-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border-color);
        }

        .case-img-box {
            position: relative;
            background-color: #eee;
            overflow: hidden;
            aspect-ratio: 16/10;
        }

        .case-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .case-card:hover .case-img-box img {
            transform: scale(1.05);
        }

        .case-info {
            padding: 20px;
        }

        .case-info h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

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

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

        .form-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-bottom: 20px;
        }

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

        .form-group.full-width {
            grid-column: span 2;
        }

        label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
        }

        input, select, textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background-color: var(--bg-light);
            color: var(--text-dark);
            font-size: 0.95rem;
            transition: var(--transition);
        }

        input:focus, select:focus, textarea:focus {
            outline: none;
            border-color: var(--primary);
            background-color: var(--bg-white);
            box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
        }

        /* Articles list */
        .article-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 25px;
        }

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

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

        .article-meta {
            flex-grow: 1;
        }

        .article-title {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-dark);
            margin-bottom: 5px;
        }

        .article-link {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 500;
        }

        /* Footer */
        footer {
            background-color: var(--text-dark);
            color: #94a3b8;
            padding: 60px 0 30px 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 45px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 20px;
            font-weight: 600;
        }

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

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-qrcode {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-top: 15px;
        }

        .footer-qrcode img {
            width: 80px;
            height: 80px;
            border-radius: 4px;
            background: #fff;
            padding: 4px;
        }

        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

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

        .friend-links a {
            color: #64748b;
            font-size: 0.85rem;
        }

        .friend-links a:hover {
            color: #94a3b8;
        }

        /* Floating Widgets */
        .floating-widgets {
            position: fixed;
            right: 20px;
            bottom: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background-color: var(--bg-white);
            border-radius: 50%;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            position: relative;
        }

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

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

        .qr-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 10px;
            box-shadow: var(--card-shadow);
            display: none;
            text-align: center;
            width: 120px;
        }

        .qr-popover img {
            width: 100px;
            height: 100px;
            margin-bottom: 5px;
        }

        .qr-popover span {
            font-size: 0.75rem;
            color: var(--text-dark);
            font-weight: 600;
        }

        .float-btn:hover .qr-popover {
            display: block;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-gallery {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--bg-white);
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }

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

            .menu-toggle {
                display: flex;
            }

            .hero-title {
                font-size: 2rem;
            }

            .grid-2 {
                grid-template-columns: 1fr;
            }

            .grid-3 {
                grid-template-columns: 1fr;
            }

            .case-gallery {
                grid-template-columns: 1fr;
            }

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

            .form-group.full-width {
                grid-column: span 1;
            }

            .article-list {
                grid-template-columns: 1fr;
            }

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

            .nav-wrapper {
                padding: 0 15px;
            }
        }