* { margin: 0; padding: 0; box-sizing: border-box; }
        :root {
            --primary: #1a56db;
            --primary-dark: #1e429f;
            --accent: #0e9f6e;
            --dark: #1a202c;
            --gray: #4a5568;
            --light: #f7fafc;
            --border: #e2e8f0;
        }
        body {
            font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
            color: #333;
            line-height: 1.6;
        }
        a { text-decoration: none; color: inherit; }

        /* Top Bar */
        .topbar {
            background: var(--primary-dark);
            color: #fff;
            padding: 6px 0;
            font-size: 13px;
        }
        .topbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .topbar a { color: #fff; }

        /* Nav */
        .navbar {
            background: #fff;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            padding-bottom: 12px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: bold;
        }
        .logo-text h1 {
            font-size: 18px;
            font-weight: bold;
            color: var(--primary-dark);
        }
        .logo-text span {
            font-size: 11px;
            color: var(--gray);
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 28px;
        }
        .nav-links a {
            color: var(--dark);
            font-size: 15px;
            font-weight: 500;
            transition: color 0.3s;
            position: relative;
        }
        .nav-links a:hover { color: var(--primary); }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width 0.3s;
        }
        .nav-links a:hover::after { width: 100%; }
        .nav-phone {
            background: var(--primary);
            color: #fff;
            padding: 8px 18px;
            border-radius: 6px;
            font-weight: bold;
            font-size: 14px;
        }

        /* Hero */
        .hero {
            background: linear-gradient(135deg, #1a56db 0%, #1e429f 50%, #0e9f6e 100%);
            color: #fff;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: rgba(255,255,255,0.04);
            border-radius: 50%;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: rgba(255,255,255,0.03);
            border-radius: 50%;
        }
        .hero .container { position: relative; z-index: 1; }
        .hero-badge {
            display: inline-block;
            background: rgba(255,255,255,0.15);
            border: 1px solid rgba(255,255,255,0.3);
            padding: 5px 16px;
            border-radius: 20px;
            font-size: 13px;
            margin-bottom: 16px;
        }
        .hero h2 {
            font-size: 42px;
            font-weight: bold;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .hero p {
            font-size: 18px;
            opacity: 0.9;
            max-width: 620px;
            margin-bottom: 32px;
        }
        .hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
        .btn-primary {
            background: #fff;
            color: var(--primary-dark);
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: bold;
            font-size: 15px;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.2); }
        .btn-outline {
            border: 2px solid rgba(255,255,255,0.6);
            color: #fff;
            padding: 10px 26px;
            border-radius: 8px;
            font-size: 15px;
            transition: background 0.3s;
        }
        .btn-outline:hover { background: rgba(255,255,255,0.15); }

        /* Stats */
        .stats {
            background: #fff;
            padding: 40px 0;
            margin-top: -40px;
            position: relative;
            z-index: 2;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: #fff;
            border-radius: 12px;
            padding: 28px;
            text-align: center;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
            transition: transform 0.3s;
        }
        .stat-card:hover { transform: translateY(-4px); }
        .stat-icon {
            font-size: 32px;
            margin-bottom: 8px;
        }
        .stat-num {
            font-size: 32px;
            font-weight: bold;
            color: var(--primary);
        }
        .stat-unit {
            font-size: 16px;
            color: var(--primary);
        }
        .stat-label {
            color: var(--gray);
            font-size: 14px;
            margin-top: 4px;
        }

        /* Section */
        .section {
            padding: 72px 0;
        }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-block;
            background: #ebf5ff;
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .section-title {
            font-size: 32px;
            font-weight: bold;
            color: var(--dark);
            margin-bottom: 10px;
        }
        .section-sub {
            color: var(--gray);
            font-size: 16px;
        }

        /* About */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .about-img {
            background: linear-gradient(135deg, #1a56db 0%, #1e429f 100%);
            border-radius: 16px;
            height: 400px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        .about-img-text {
            color: #fff;
            font-size: 48px;
            font-weight: bold;
            text-align: center;
            z-index: 1;
            padding: 20px;
            line-height: 1.4;
        }
        .about-img::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 200%;
            height: 200%;
            background: repeating-linear-gradient(45deg, transparent, transparent 20px, rgba(255,255,255,0.03) 20px, rgba(255,255,255,0.03) 40px);
        }
        .about-content h3 {
            font-size: 26px;
            margin-bottom: 16px;
            color: var(--dark);
        }
        .about-content p {
            color: var(--gray);
            margin-bottom: 20px;
            font-size: 15px;
        }
        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .about-feature {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--dark);
        }
        .about-feature-icon {
            width: 28px;
            height: 28px;
            background: #ebf5ff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            flex-shrink: 0;
        }

        /* Timeline */
        .timeline-section { background: var(--light); }
        .timeline {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--primary);
            transform: translateX(-50%);
        }
        .timeline-item {
            display: flex;
            margin-bottom: 32px;
            position: relative;
        }
        .timeline-item:nth-child(odd) { justify-content: flex-start; padding-right: calc(50% + 24px); }
        .timeline-item:nth-child(even) { justify-content: flex-end; padding-left: calc(50% + 24px); }
        .timeline-dot {
            position: absolute;
            left: 50%;
            top: 8px;
            width: 16px;
            height: 16px;
            background: var(--primary);
            border-radius: 50%;
            transform: translateX(-50%);
            border: 3px solid #fff;
            box-shadow: 0 0 0 3px var(--primary);
        }
        .timeline-card {
            background: #fff;
            border-radius: 12px;
            padding: 18px 22px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
            width: 100%;
        }
        .timeline-year {
            font-size: 20px;
            font-weight: bold;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .timeline-text {
            font-size: 14px;
            color: var(--gray);
        }

        /* Products */
        .products-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .product-card {
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
            transition: transform 0.3s, box-shadow 0.3s;
            border: 1px solid var(--border);
        }
        .product-card:hover { transform: translateY(-6px); box-shadow: 0 8px 30px rgba(0,0,0,0.12); }
        .product-img {
            height: 180px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 56px;
        }
        .product-card:nth-child(1) .product-img { background: linear-gradient(135deg, #ebf5ff, #d0e8ff); }
        .product-card:nth-child(2) .product-img { background: linear-gradient(135deg, #f0fdf4, #d1fae5); }
        .product-card:nth-child(3) .product-img { background: linear-gradient(135deg, #fdf2f8, #fce7f3); }
        .product-card:nth-child(4) .product-img { background: linear-gradient(135deg, #fff7ed, #fed7aa); }
        .product-info { padding: 18px; }
        .product-info h4 {
            font-size: 16px;
            font-weight: bold;
            margin-bottom: 6px;
            color: var(--dark);
        }
        .product-info p {
            font-size: 13px;
            color: var(--gray);
        }

        /* Capabilities */
        .cap-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .cap-card {
            background: #fff;
            border-radius: 12px;
            padding: 28px;
            border: 1px solid var(--border);
            transition: border-color 0.3s;
        }
        .cap-card:hover { border-color: var(--primary); }
        .cap-icon {
            width: 52px;
            height: 52px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: #fff;
            margin-bottom: 16px;
        }
        .cap-card h4 { font-size: 17px; font-weight: bold; margin-bottom: 10px; }
        .cap-card p { font-size: 14px; color: var(--gray); }
        .cap-steps {
            margin-top: 12px;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .cap-step {
            background: var(--light);
            padding: 3px 10px;
            border-radius: 4px;
            font-size: 12px;
            color: var(--gray);
        }

        /* Revenue */
        .revenue-section { background: linear-gradient(135deg, #1a56db 0%, #1e429f 100%); color: #fff; }
        .revenue-section .section-tag { background: rgba(255,255,255,0.15); color: #fff; }
        .revenue-section .section-title { color: #fff; }
        .revenue-section .section-sub { color: rgba(255,255,255,0.7); }
        .revenue-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
        }
        .revenue-item {
            text-align: center;
            padding: 20px 10px;
            border-radius: 10px;
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.15);
        }
        .revenue-year {
            font-size: 13px;
            opacity: 0.8;
            margin-bottom: 4px;
        }
        .revenue-num {
            font-size: 22px;
            font-weight: bold;
        }
        .revenue-note {
            text-align: center;
            margin-top: 24px;
            font-size: 16px;
            opacity: 0.85;
        }

        /* Certs */
        .certs-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .cert-card {
            background: #fff;
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: 0 2px 10px rgba(0,0,0,0.04);
        }
        .cert-badge {
            width: 64px;
            height: 64px;
            background: var(--light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            font-size: 28px;
        }
        .cert-card h4 { font-size: 15px; font-weight: bold; margin-bottom: 4px; }
        .cert-card p { font-size: 12px; color: var(--gray); }

        /* Contact */
        .contact-section { background: var(--light); }
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
        }
        .contact-info-item {
            display: flex;
            gap: 16px;
            margin-bottom: 28px;
        }
        .contact-info-icon {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #fff;
            flex-shrink: 0;
        }
        .contact-info-label { font-size: 13px; color: var(--gray); margin-bottom: 2px; }
        .contact-info-value { font-size: 16px; font-weight: bold; color: var(--dark); }
        .map-placeholder {
            background: #e2e8f0;
            border-radius: 12px;
            height: 100%;
            min-height: 300px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 100px;
            color: #cbd5e0;
        }
        .contact-form {
            background: #fff;
            border-radius: 12px;
            padding: 32px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
        }
        .contact-form h3 { font-size: 20px; margin-bottom: 20px; }
        .form-group { margin-bottom: 16px; }
        .form-group label { display: block; font-size: 13px; margin-bottom: 6px; font-weight: 500; }
        .form-group input, .form-group textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 14px;
            font-family: inherit;
            transition: border-color 0.3s;
        }
        .form-group input:focus, .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
        }
        .form-group textarea { height: 100px; resize: vertical; }
        .form-submit {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: bold;
            cursor: pointer;
            width: 100%;
            transition: background 0.3s;
        }
        .form-submit:hover { background: var(--primary-dark); }

        /* Footer */
        .footer {
            background: var(--dark);
            color: #fff;
            padding: 48px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .footer-brand h3 { font-size: 20px; margin-bottom: 12px; }
        .footer-brand p { font-size: 14px; opacity: 0.7; max-width: 360px; }
        .footer h4 { font-size: 15px; margin-bottom: 16px; opacity: 0.9; }
        .footer ul { list-style: none; }
        .footer ul li { margin-bottom: 8px; }
        .footer ul li a {
            color: rgba(255,255,255,0.6);
            font-size: 14px;
            transition: color 0.3s;
        }
        .footer ul li a:hover { color: #fff; }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 13px;
            opacity: 0.5;
        }

        /* Mobile menu */
        .mobile-toggle { display: none; font-size: 24px; cursor: pointer; }

        @media (max-width: 768px) {
            .nav-links { display: none; }
            .mobile-toggle { display: block; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .about-grid { grid-template-columns: 1fr; }
            .products-grid { grid-template-columns: repeat(2, 1fr); }
            .cap-grid { grid-template-columns: 1fr; }
            .certs-grid { grid-template-columns: repeat(2, 1fr); }
            .contact-grid { grid-template-columns: 1fr; }
            .revenue-grid { grid-template-columns: repeat(3, 1fr); }
            .footer-grid { grid-template-columns: 1fr; }
            .timeline::before { left: 20px; }
            .timeline-item { padding-right: 0 !important; padding-left: 56px !important; justify-content: flex-start !important; }
            .timeline-dot { left: 20px; }
            .hero h2 { font-size: 28px; }
        }