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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f9f9f9;
        }

        /* 导航栏样式 */
        .bh040-navbar-wrapper {
            background: linear-gradient(135deg, #0088cc 0%, #0066aa 100%);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .bh040-navbar-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .bh040-logo-section {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .bh040-logo-img {
            height: 45px;
            width: auto;
        }

        .bh040-logo-text {
            color: #fff;
            font-size: 18px;
            font-weight: 600;
            display: none;
        }

        .bh040-nav-links {
            display: flex;
            gap: 30px;
            list-style: none;
        }

        .bh040-nav-link {
            color: #fff;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 8px 0;
            border-bottom: 2px solid transparent;
        }

        .bh040-nav-link:hover {
            border-bottom-color: #fff;
            opacity: 0.8;
        }

        /* 主内容区 */
        .bh040-hero-section {
            background: linear-gradient(135deg, #0088cc 0%, #00a8e8 100%);
            color: #fff;
            padding: 80px 20px;
            text-align: center;
        }

        .bh040-hero-container {
            max-width: 900px;
            margin: 0 auto;
        }

        .bh040-hero-title {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .bh040-hero-subtitle {
            font-size: 20px;
            margin-bottom: 40px;
            opacity: 0.95;
            font-weight: 300;
        }

        .bh040-cta-buttons {
            display: flex;
            gap: 15px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .bh040-btn-primary {
            background-color: #fff;
            color: #0088cc;
            padding: 15px 40px;
            font-size: 16px;
            font-weight: 600;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .bh040-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
        }

        .bh040-btn-secondary {
            background-color: transparent;
            color: #fff;
            padding: 15px 40px;
            font-size: 16px;
            font-weight: 600;
            border: 2px solid #fff;
            border-radius: 5px;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .bh040-btn-secondary:hover {
            background-color: #fff;
            color: #0088cc;
        }

        .bh040-hero-features {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 30px;
            flex-wrap: wrap;
            font-size: 14px;
        }

        .bh040-feature-badge {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* 内容区域 */
        .bh040-content-section {
            max-width: 1200px;
            margin: 60px auto;
            padding: 0 20px;
        }

        .bh040-section-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 30px;
            color: #0088cc;
            text-align: center;
            position: relative;
            padding-bottom: 15px;
        }

        .bh040-section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, #0088cc, #00a8e8);
            border-radius: 2px;
        }

        .bh040-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin: 40px 0;
        }

        .bh040-feature-card {
            background: #fff;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 12px rgba(0, 136, 204, 0.1);
            transition: all 0.3s ease;
            border-top: 4px solid #0088cc;
        }

        .bh040-feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(0, 136, 204, 0.2);
        }

        .bh040-feature-icon {
            font-size: 40px;
            margin-bottom: 15px;
        }

        .bh040-feature-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
            color: #333;
        }

        .bh040-feature-card p {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }

        /* 安装步骤 */
        .bh040-steps-container {
            background: #fff;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 2px 12px rgba(0, 136, 204, 0.1);
            margin: 40px 0;
        }

        .bh040-steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 30px;
        }

        .bh040-step-item {
            text-align: center;
        }

        .bh040-step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #0088cc, #00a8e8);
            color: #fff;
            border-radius: 50%;
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .bh040-step-item h4 {
            font-size: 16px;
            margin-bottom: 10px;
            color: #333;
        }

        .bh040-step-item p {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }

        /* 兼容性信息 */
        .bh040-compatibility-section {
            background: linear-gradient(135deg, #f0f7ff 0%, #e8f5ff 100%);
            padding: 40px;
            border-radius: 8px;
            margin: 40px 0;
        }

        .bh040-compatibility-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 25px;
        }

        .bh040-compatibility-item {
            background: #fff;
            padding: 20px;
            border-radius: 6px;
            text-align: center;
            border: 1px solid #d0e8ff;
        }

        .bh040-compatibility-item h4 {
            font-size: 16px;
            color: #0088cc;
            margin-bottom: 8px;
            font-weight: 600;
        }

        .bh040-compatibility-item p {
            font-size: 13px;
            color: #666;
        }

        /* 对比表 */
        .bh040-comparison-table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 136, 204, 0.1);
            margin: 30px 0;
        }

        .bh040-comparison-table th {
            background: linear-gradient(135deg, #0088cc, #00a8e8);
            color: #fff;
            padding: 15px;
            text-align: left;
            font-weight: 600;
            font-size: 14px;
        }

        .bh040-comparison-table td {
            padding: 15px;
            border-bottom: 1px solid #eee;
            font-size: 14px;
        }

        .bh040-comparison-table tr:last-child td {
            border-bottom: none;
        }

        .bh040-comparison-table tr:nth-child(even) {
            background-color: #f9f9f9;
        }

        .bh040-check-mark {
            color: #28a745;
            font-weight: 700;
            font-size: 16px;
        }

        /* 常见问题 */
        .bh040-faq-section {
            margin: 40px 0;
        }

        .bh040-faq-item {
            background: #fff;
            padding: 20px;
            margin-bottom: 15px;
            border-radius: 6px;
            border-left: 4px solid #0088cc;
            box-shadow: 0 2px 8px rgba(0, 136, 204, 0.1);
        }

        .bh040-faq-question {
            font-size: 16px;
            font-weight: 600;
            color: #333;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .bh040-faq-toggle {
            font-size: 20px;
            color: #0088cc;
            transition: transform 0.3s ease;
        }

        .bh040-faq-item.active .bh040-faq-toggle {
            transform: rotate(180deg);
        }

        .bh040-faq-answer {
            margin-top: 15px;
            font-size: 14px;
            color: #666;
            line-height: 1.7;
            display: none;
        }

        .bh040-faq-item.active .bh040-faq-answer {
            display: block;
        }

        /* 下载区域 */
        .bh040-download-section {
            background: linear-gradient(135deg, #0088cc 0%, #00a8e8 100%);
            color: #fff;
            padding: 60px 20px;
            text-align: center;
            margin: 60px 0;
            border-radius: 8px;
        }

        .bh040-download-title {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .bh040-download-subtitle {
            font-size: 16px;
            margin-bottom: 40px;
            opacity: 0.95;
        }

        .bh040-download-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .bh040-btn-download {
            background-color: #fff;
            color: #0088cc;
            padding: 18px 45px;
            font-size: 16px;
            font-weight: 600;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .bh040-btn-download:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 25px rgba(0, 0, 0, 0.3);
        }

        /* 页脚 */
        .bh040-footer {
            background: #1a1a1a;
            color: #ccc;
            padding: 40px 20px;
            margin-top: 60px;
        }

        .bh040-footer-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .bh040-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }

        .bh040-footer-column h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 15px;
        }

        .bh040-footer-column ul {
            list-style: none;
        }

        .bh040-footer-column li {
            margin-bottom: 10px;
        }

        .bh040-footer-column a {
            color: #ccc;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s ease;
        }

        .bh040-footer-column a:hover {
            color: #0088cc;
        }

        .bh040-footer-bottom {
            border-top: 1px solid #333;
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: #999;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .bh040-navbar-container {
                flex-direction: column;
                height: auto;
                padding: 15px 20px;
                gap: 15px;
            }

            .bh040-nav-links {
                gap: 15px;
                flex-direction: column;
                text-align: center;
            }

            .bh040-hero-title {
                font-size: 32px;
            }

            .bh040-hero-subtitle {
                font-size: 16px;
            }

            .bh040-section-title {
                font-size: 24px;
            }

            .bh040-cta-buttons {
                gap: 10px;
            }

            .bh040-btn-primary,
            .bh040-btn-secondary {
                padding: 12px 30px;
                font-size: 14px;
            }

            .bh040-hero-features {
                gap: 20px;
            }

            .bh040-features-grid {
                grid-template-columns: 1fr;
            }

            .bh040-steps-grid {
                grid-template-columns: 1fr;
            }

            .bh040-compatibility-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .bh040-download-title {
                font-size: 24px;
            }

            .bh040-download-buttons {
                flex-direction: column;
            }

            .bh040-btn-download {
                width: 100%;
            }

            .bh040-logo-text {
                display: block;
            }
        }

        @media (max-width: 480px) {
            .bh040-hero-title {
                font-size: 24px;
            }

            .bh040-hero-subtitle {
                font-size: 14px;
            }

            .bh040-section-title {
                font-size: 20px;
            }

            .bh040-compatibility-grid {
                grid-template-columns: 1fr;
            }

            .bh040-nav-links {
                gap: 10px;
            }

            .bh040-btn-primary,
            .bh040-btn-secondary,
            .bh040-btn-download {
                padding: 10px 20px;
                font-size: 13px;
            }
        }