:root {
            --hhx9et-primary: #1880C4;
            --hhx9et-secondary: #003366;
            --hhx9et-accent: #64ffda;
            --hhx9et-text: #2d3436;
            --hhx9et-bg-light: #f4f7f6;
            --hhx9et-white: #ffffff;
            --hhx9et-gray: #f8f9fa;
            --hhx9et-border: #e1e4e8;
            --hhx9et-spacing-unit: 8px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            color: var(--hhx9et-text);
            background-color: var(--hhx9et-bg-light);
            word-break: keep-all;
            overflow-wrap: break-word;
        }

        /* 导航栏 */
        .hhx9et-navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 70px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid var(--hhx9et-border);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hhx9et-nav-container {
            width: 95vw;
            max-width: 1300px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .hhx9et-logo {
            min-width: 0;
            display: flex;
            align-items: center;
        }

        .hhx9et-logo img {
            height: 40px;
            width: auto;
        }

        .hhx9et-nav-menu {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            min-width: 0;
        }

        .hhx9et-nav-item {
            margin-left: 16px;
        }

        .hhx9et-nav-link {
            text-decoration: none;
            color: var(--hhx9et-secondary);
            font-weight: 500;
            font-size: 14px;
            padding: 8px 12px;
            border-radius: 4px;
            transition: all 0.3s ease;
        }

        .hhx9et-nav-link:hover {
            color: var(--hhx9et-primary);
            background: rgba(24, 128, 196, 0.05);
        }

        .hhx9et-nav-link.hhx9et-active {
            color: var(--hhx9et-white);
            background: var(--hhx9et-primary);
        }

        /* Hero 区块 - 独特设计：斜角分割布局 */
        .hhx9et-hero-section {
            padding: 140px 0 100px;
            background: linear-gradient(135deg, var(--hhx9et-secondary) 0%, var(--hhx9et-primary) 100%);
            color: var(--hhx9et-white);
            position: relative;
            overflow: hidden;
            display: flex;
            justify-content: center;
        }

        .hhx9et-hero-content {
            width: 90vw;
            max-width: 1100px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hhx9et-hero-text {
            flex: 1;
            min-width: 320px;
            padding-right: 48px;
        }

        .hhx9et-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            margin-bottom: 24px;
            font-weight: 800;
        }

        .hhx9et-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            opacity: 0.9;
            margin-bottom: 32px;
            max-width: 600px;
        }

        .hhx9et-hero-visual {
            flex: 1;
            min-width: 320px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 24px;
            padding: 40px;
            backdrop-filter: blur(5px);
            text-align: center;
            box-shadow: 0 20px 40px rgba(0,0,0,0.2);
        }

        .hhx9et-bridge-icon {
            font-size: 80px;
            margin-bottom: 20px;
            display: block;
        }

        /* 核心配置卡片区 */
        .hhx9et-main-grid {
            width: 90vw;
            max-width: 1100px;
            margin: -60px auto 64px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
            position: relative;
            z-index: 10;
        }

        .hhx9et-card {
            background: var(--hhx9et-white);
            padding: 32px;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            transition: transform 0.3s ease;
            display: flex;
            flex-direction: column;
            border: 1px solid var(--hhx9et-border);
        }

        .hhx9et-card:hover {
            transform: translateY(-8px);
            border-color: var(--hhx9et-primary);
        }

        .hhx9et-card-tag {
            font-size: 12px;
            font-weight: 700;
            color: var(--hhx9et-primary);
            text-transform: uppercase;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .hhx9et-card-title {
            font-size: 20px;
            margin-bottom: 16px;
            color: var(--hhx9et-secondary);
        }

        .hhx9et-card-list {
            list-style: none;
            margin-bottom: 24px;
            flex-grow: 1;
        }

        .hhx9et-card-list li {
            font-size: 14px;
            margin-bottom: 8px;
            padding-left: 20px;
            position: relative;
        }

        .hhx9et-card-list li::before {
            content: "•";
            position: absolute;
            left: 0;
            color: var(--hhx9et-primary);
            font-weight: bold;
        }

        /* 详细步骤区块 */
        .hhx9et-step-section {
            padding: 96px 0;
            background: var(--hhx9et-white);
            display: flex;
            justify-content: center;
        }

        .hhx9et-step-container {
            width: 90vw;
            max-width: 900px;
        }

        .hhx9et-section-header {
            text-align: center;
            margin-bottom: 64px;
        }

        .hhx9et-section-title {
            font-size: clamp(1.5rem, 3vw, 2.5rem);
            color: var(--hhx9et-secondary);
            margin-bottom: 16px;
        }

        .hhx9et-step-item {
            display: flex;
            flex-wrap: wrap;
            margin-bottom: 48px;
            align-items: flex-start;
        }

        .hhx9et-step-number {
            width: 48px;
            height: 48px;
            background: var(--hhx9et-primary);
            color: var(--hhx9et-white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            margin-right: 24px;
            flex-shrink: 0;
        }

        .hhx9et-step-body {
            flex: 1;
            min-width: 280px;
        }

        .hhx9et-step-body h3 {
            margin-bottom: 12px;
            color: var(--hhx9et-secondary);
        }

        .hhx9et-step-body p {
            color: #666;
            margin-bottom: 16px;
        }

        .hhx9et-code-box {
            background: #272822;
            color: #f8f8f2;
            padding: 20px;
            border-radius: 8px;
            font-family: monospace;
            font-size: 14px;
            overflow-x: auto;
        }

        /* 动态资讯区块 */
        .hhx9et-news-section {
            padding: 80px 0;
            background: var(--hhx9et-gray);
            display: flex;
            justify-content: center;
        }

        .hhx9et-news-container {
            width: 90vw;
            max-width: 1100px;
        }

        /* 页脚 */
        .hhx9et-footer {
            background: var(--hhx9et-secondary);
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 32px;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .hhx9et-footer-grid {
            width: 90vw;
            max-width: 1100px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 48px;
        }

        .hhx9et-footer-brand h2 {
            color: var(--hhx9et-white);
            margin-bottom: 16px;
        }

        .hhx9et-footer-links h4 {
            color: var(--hhx9et-white);
            margin-bottom: 20px;
        }

        .hhx9et-footer-links ul {
            list-style: none;
        }

        .hhx9et-footer-links li {
            margin-bottom: 10px;
        }

        .hhx9et-footer-links a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color 0.3s;
        }

        .hhx9et-footer-links a:hover {
            color: var(--hhx9et-white);
        }

        .hhx9et-copyright {
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 14px;
            width: 90vw;
            max-width: 1100px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .hhx9et-nav-container {
                justify-content: center;
            }
            .hhx9et-nav-menu {
                margin-top: 10px;
                justify-content: center;
            }
            .hhx9et-nav-item {
                margin: 4px;
            }
            .hhx9et-hero-text {
                padding-right: 0;
                text-align: center;
                margin-bottom: 40px;
            }
            .hhx9et-hero-visual {
                padding: 24px;
            }
        }