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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.6;
            background: #fff;
        }

        /* ====== Header & Navigation ====== */
        .oa02v9-header {
            background: #fff;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .oa02v9-nav {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .oa02v9-logo {
            flex-shrink: 0;
            height: 50px;
            display: flex;
            align-items: center;
        }

        .oa02v9-logo img {
            height: 100%;
            width: auto;
            object-fit: contain;
        }

        .oa02v9-menu-toggle {
            display: none;
            flex-direction: column;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            gap: 5px;
        }

        .oa02v9-menu-toggle span {
            width: 25px;
            height: 3px;
            background: #333;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .oa02v9-menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(10px, 10px);
        }

        .oa02v9-menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .oa02v9-menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(8px, -8px);
        }

        .oa02v9-nav-menu {
            display: flex;
            gap: 40px;
            align-items: center;
        }

        .oa02v9-nav-menu a {
            text-decoration: none;
            color: #333;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.3s ease;
            position: relative;
        }

        .oa02v9-nav-menu a:hover {
            color: #0084ff;
        }

        .oa02v9-nav-menu a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: #0084ff;
            transition: width 0.3s ease;
        }

        .oa02v9-nav-menu a:hover::after {
            width: 100%;
        }

        .oa02v9-cta-btn {
            background: linear-gradient(135deg, #0084ff 0%, #006fd9 100%);
            color: white;
            padding: 10px 24px;
            border-radius: 24px;
            text-decoration: none;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            display: inline-block;
        }

        .oa02v9-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 16px rgba(0, 132, 255, 0.3);
        }

        .oa02v9-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 99;
        }

        .oa02v9-nav-overlay.active {
            display: block;
        }

        /* ====== Hero Section ====== */
        .oa02v9-hero {
            position: relative;
            min-height: 700px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
        }

        .oa02v9-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 132, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
        }

        .oa02v9-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 132, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
        }

        .oa02v9-hero-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 60px 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .oa02v9-hero-content h1 {
            font-size: 48px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 20px;
            color: #1a1a1a;
            background: linear-gradient(135deg, #1a1a1a 0%, #0084ff 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .oa02v9-hero-content p {
            font-size: 18px;
            color: #666;
            margin-bottom: 30px;
            line-height: 1.8;
        }

        .oa02v9-hero-buttons {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .oa02v9-primary-btn {
            background: linear-gradient(135deg, #0084ff 0%, #006fd9 100%);
            color: white;
            padding: 14px 32px;
            border-radius: 28px;
            text-decoration: none;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 4px 15px rgba(0, 132, 255, 0.3);
        }

        .oa02v9-primary-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0, 132, 255, 0.4);
        }

        .oa02v9-secondary-btn {
            background: white;
            color: #0084ff;
            padding: 14px 32px;
            border-radius: 28px;
            text-decoration: none;
            font-size: 16px;
            font-weight: 600;
            border: 2px solid #0084ff;
            transition: all 0.3s ease;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .oa02v9-secondary-btn:hover {
            background: #f0f8ff;
            transform: translateY(-3px);
        }

        .oa02v9-hero-stats {
            display: flex;
            gap: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(0, 0, 0, 0.1);
        }

        .oa02v9-stat-item {
            flex: 1;
        }

        .oa02v9-stat-number {
            font-size: 24px;
            font-weight: 700;
            color: #0084ff;
            margin-bottom: 5px;
        }

        .oa02v9-stat-label {
            font-size: 13px;
            color: #999;
        }

        .oa02v9-hero-image {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .oa02v9-hero-image img {
            max-width: 100%;
            height: auto;
            border-radius: 16px;
            box-shadow: 0 20px 60px rgba(0, 132, 255, 0.15);
            animation: float 3s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% {
                transform: translateY(0px);
            }
            50% {
                transform: translateY(-20px);
            }
        }

        /* ====== Features Section ====== */
        .oa02v9-features {
            padding: 80px 20px;
            background: #fff;
        }

        .oa02v9-features-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .oa02v9-section-title {
            text-align: center;
            margin-bottom: 60px;
        }

        .oa02v9-section-title h2 {
            font-size: 42px;
            font-weight: 700;
            margin-bottom: 15px;
            color: #1a1a1a;
        }

        .oa02v9-section-title p {
            font-size: 18px;
            color: #666;
            max-width: 600px;
            margin: 0 auto;
        }

        .oa02v9-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-bottom: 60px;
        }

        .oa02v9-feature-card {
            background: #f9fbfd;
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            transition: all 0.3s ease;
            border: 1px solid #e8ecf1;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .oa02v9-feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #0084ff 0%, #006fd9 100%);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }

        .oa02v9-feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(0, 132, 255, 0.12);
            border-color: #0084ff;
        }

        .oa02v9-feature-card:hover::before {
            transform: scaleX(1);
        }

        .oa02v9-feature-icon {
            font-size: 48px;
            margin-bottom: 15px;
            display: block;
        }

        .oa02v9-feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            color: #1a1a1a;
        }

        .oa02v9-feature-card p {
            font-size: 14px;
            color: #666;
            line-height: 1.8;
        }

        .oa02v9-features-image {
            text-align: center;
            margin: 60px 0;
        }

        .oa02v9-features-image img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }

        /* ====== Statistics Section ====== */
        .oa02v9-statistics {
            padding: 80px 20px;
            background: linear-gradient(135deg, #0084ff 0%, #006fd9 100%);
            color: white;
        }

        .oa02v9-stats-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .oa02v9-stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            text-align: center;
        }

        .oa02v9-stat-block {
            animation: slideUp 0.6s ease forwards;
            opacity: 0;
        }

        .oa02v9-stat-block:nth-child(1) { animation-delay: 0.1s; }
        .oa02v9-stat-block:nth-child(2) { animation-delay: 0.2s; }
        .oa02v9-stat-block:nth-child(3) { animation-delay: 0.3s; }
        .oa02v9-stat-block:nth-child(4) { animation-delay: 0.4s; }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .oa02v9-stat-block h3 {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .oa02v9-stat-block p {
            font-size: 16px;
            opacity: 0.9;
            line-height: 1.6;
        }

        /* ====== Products Section ====== */
        .oa02v9-products {
            padding: 80px 20px;
            background: #f9fbfd;
        }

        .oa02v9-products-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .oa02v9-products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .oa02v9-product-card {
            background: white;
            border-radius: 12px;
            padding: 30px;
            border: 1px solid #e8ecf1;
            transition: all 0.3s ease;
            position: relative;
        }

        .oa02v9-product-card:hover {
            box-shadow: 0 20px 50px rgba(0, 132, 255, 0.15);
            transform: translateY(-8px);
        }

        .oa02v9-product-badge {
            display: inline-block;
            background: linear-gradient(135deg, #0084ff 0%, #006fd9 100%);
            color: white;
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 15px;
        }

        .oa02v9-product-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
            color: #1a1a1a;
        }

        .oa02v9-product-card p {
            font-size: 14px;
            color: #666;
            line-height: 1.8;
            margin-bottom: 15px;
        }

        /* ====== Scenarios Section ====== */
        .oa02v9-scenarios {
            padding: 80px 20px;
            background: white;
        }

        .oa02v9-scenarios-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .oa02v9-scenarios-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .oa02v9-scenario-card {
            background: linear-gradient(135deg, #f9fbfd 0%, #f0f8ff 100%);
            border-radius: 12px;
            padding: 30px;
            border-left: 4px solid #0084ff;
            transition: all 0.3s ease;
        }

        .oa02v9-scenario-card:hover {
            box-shadow: 0 12px 40px rgba(0, 132, 255, 0.12);
            transform: translateX(8px);
        }

        .oa02v9-scenario-icon {
            font-size: 40px;
            margin-bottom: 15px;
            display: block;
        }

        .oa02v9-scenario-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            color: #1a1a1a;
        }

        .oa02v9-scenario-card p {
            font-size: 14px;
            color: #666;
            line-height: 1.8;
        }

        /* ====== Testimonials Section ====== */
        .oa02v9-testimonials {
            padding: 80px 20px;
            background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
        }

        .oa02v9-testimonials-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .oa02v9-testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .oa02v9-testimonial-card {
            background: white;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
            position: relative;
        }

        .oa02v9-testimonial-card::before {
            content: '"';
            position: absolute;
            top: 15px;
            left: 20px;
            font-size: 48px;
            color: #0084ff;
            opacity: 0.2;
        }

        .oa02v9-testimonial-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(0, 132, 255, 0.15);
        }

        .oa02v9-rating {
            color: #ffc107;
            margin-bottom: 15px;
            font-size: 14px;
        }

        .oa02v9-testimonial-text {
            font-size: 15px;
            color: #666;
            line-height: 1.8;
            margin-bottom: 20px;
            font-style: italic;
        }

        .oa02v9-testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
            padding-top: 15px;
            border-top: 1px solid #e8ecf1;
        }

        .oa02v9-author-avatar {
            font-size: 32px;
            display: block;
        }

        .oa02v9-author-info h4 {
            font-size: 14px;
            font-weight: 600;
            color: #1a1a1a;
            margin-bottom: 3px;
        }

        .oa02v9-author-info p {
            font-size: 12px;
            color: #999;
        }

        /* ====== Technology Section ====== */
        .oa02v9-technology {
            padding: 80px 20px;
            background: white;
        }

        .oa02v9-technology-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .oa02v9-tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .oa02v9-tech-card {
            background: #f9fbfd;
            border-radius: 12px;
            padding: 30px;
            border: 1px solid #e8ecf1;
            transition: all 0.3s ease;
        }

        .oa02v9-tech-card:hover {
            border-color: #0084ff;
            box-shadow: 0 12px 40px rgba(0, 132, 255, 0.12);
        }

        .oa02v9-tech-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            color: #1a1a1a;
        }

        .oa02v9-tech-card p {
            font-size: 14px;
            color: #666;
            line-height: 1.8;
        }

        /* ====== News Section ====== */
        .oa02v9-news {
            padding: 80px 20px;
            background: #f9fbfd;
        }

        .oa02v9-news-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .oa02v9-news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .oa02v9-news-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
        }

        .oa02v9-news-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(0, 132, 255, 0.15);
        }

        .oa02v9-news-card-content {
            padding: 25px;
        }

        .oa02v9-news-date {
            color: #0084ff;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .oa02v9-news-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            color: #1a1a1a;
        }

        .oa02v9-news-card p {
            font-size: 14px;
            color: #666;
            line-height: 1.8;
        }

        /* ====== CTA Section ====== */
        .oa02v9-cta-section {
            padding: 80px 20px;
            background: linear-gradient(135deg, #0084ff 0%, #006fd9 100%);
            text-align: center;
            color: white;
        }

        .oa02v9-cta-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .oa02v9-cta-section h2 {
            font-size: 42px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .oa02v9-cta-section p {
            font-size: 18px;
            margin-bottom: 40px;
            opacity: 0.9;
        }

        .oa02v9-cta-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .oa02v9-cta-btn-white {
            background: white;
            color: #0084ff;
            padding: 14px 32px;
            border-radius: 28px;
            text-decoration: none;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .oa02v9-cta-btn-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
        }

        .oa02v9-cta-btn-border {
            background: transparent;
            color: white;
            padding: 14px 32px;
            border-radius: 28px;
            text-decoration: none;
            font-size: 16px;
            font-weight: 600;
            border: 2px solid white;
            transition: all 0.3s ease;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .oa02v9-cta-btn-border:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }

        /* ====== Footer ====== */
        .oa02v9-footer {
            background: #1a1a1a;
            color: #ccc;
            padding: 60px 20px 20px;
        }

        .oa02v9-footer-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .oa02v9-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .oa02v9-footer-section h3 {
            font-size: 15px;
            font-weight: 600;
            color: white;
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .oa02v9-footer-section ul {
            list-style: none;
        }

        .oa02v9-footer-section ul li {
            margin-bottom: 12px;
        }

        .oa02v9-footer-section a {
            color: #ccc;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s ease;
        }

        .oa02v9-footer-section a:hover {
            color: #0084ff;
        }

        .oa02v9-footer-brand {
            margin-bottom: 30px;
        }

        .oa02v9-footer-brand-name {
            font-size: 20px;
            font-weight: 700;
            color: white;
            margin-bottom: 10px;
        }

        .oa02v9-footer-brand p {
            font-size: 14px;
            color: #999;
            line-height: 1.8;
        }

        .oa02v9-footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            margin-top: 40px;
        }

        .oa02v9-footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 13px;
            color: #999;
        }

        .oa02v9-footer-links {
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
        }

        .oa02v9-footer-links a {
            color: #999;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .oa02v9-footer-links a:hover {
            color: #0084ff;
        }

        /* ====== Responsive Design ====== */
        @media (max-width: 768px) {
            .oa02v9-menu-toggle {
                display: flex;
            }

            .oa02v9-nav-menu {
                display: none;
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: white;
                padding: 20px;
                gap: 0;
                border-bottom: 1px solid #e8ecf1;
                z-index: 98;
                align-items: flex-start;
            }

            .oa02v9-nav-menu.active {
                display: flex;
            }

            .oa02v9-nav-menu a {
                padding: 12px 0;
                width: 100%;
                border-bottom: 1px solid #f0f0f0;
            }

            .oa02v9-nav-menu a::after {
                display: none;
            }

            .oa02v9-hero {
                min-height: 600px;
            }

            .oa02v9-hero-container {
                grid-template-columns: 1fr;
                gap: 40px;
                padding: 40px 20px;
            }

            .oa02v9-hero-content h1 {
                font-size: 32px;
            }

            .oa02v9-hero-content p {
                font-size: 16px;
            }

            .oa02v9-hero-buttons {
                flex-direction: column;
                gap: 12px;
            }

            .oa02v9-primary-btn,
            .oa02v9-secondary-btn {
                width: 100%;
                justify-content: center;
            }

            .oa02v9-hero-stats {
                flex-direction: column;
                gap: 20px;
            }

            .oa02v9-section-title h2 {
                font-size: 32px;
            }

            .oa02v9-section-title p {
                font-size: 16px;
            }

            .oa02v9-features-grid {
                grid-template-columns: 1fr;
            }

            .oa02v9-stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .oa02v9-testimonials-grid {
                grid-template-columns: 1fr;
            }

            .oa02v9-cta-section h2 {
                font-size: 32px;
            }

            .oa02v9-cta-buttons {
                flex-direction: column;
            }

            .oa02v9-cta-btn-white,
            .oa02v9-cta-btn-border {
                width: 100%;
                justify-content: center;
            }

            .oa02v9-footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .oa02v9-footer-links {
                justify-content: center;
            }
        }

        @media (max-width: 480px) {
            .oa02v9-hero-content h1 {
                font-size: 24px;
            }

            .oa02v9-hero-content p {
                font-size: 14px;
            }

            .oa02v9-section-title h2 {
                font-size: 24px;
            }

            .oa02v9-stats-grid {
                grid-template-columns: 1fr;
            }

            .oa02v9-stat-block h3 {
                font-size: 36px;
            }

            .oa02v9-cta-section h2 {
                font-size: 24px;
            }

            .oa02v9-cta-section p {
                font-size: 16px;
            }

            .oa02v9-footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }