:root {
            --aisitex-primary: #E60012;
            --aisitex-secondary: #0066CC;
            --aisitex-bg: #F8F9FA;
            --aisitex-text: #1A1A1A;
            --aisitex-text-light: #555555;
            --aisitex-border: #E5E7EB;
            --aisitex-white: #FFFFFF;
            --aisitex-max-width: 1200px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--aisitex-bg);
            color: var(--aisitex-text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        /* 顶部导航组件 */
        .aisitex-header {
            background-color: var(--aisitex-white);
            border-bottom: 1px solid var(--aisitex-border);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .aisitex-header-container {
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .aisitex-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }

        .aisitex-brand-logo {
            width: 36px;
            height: 36px;
            background-color: var(--aisitex-primary);
            color: var(--aisitex-white);
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 4px;
        }

        .aisitex-brand-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--aisitex-text);
            letter-spacing: -0.5px;
        }

        .aisitex-nav-menu {
            display: flex;
            gap: 32px;
            align-items: center;
        }

        .aisitex-nav-link {
            text-decoration: none;
            color: var(--aisitex-text-light);
            font-size: 15px;
            font-weight: 500;
            transition: color 0.2s;
            position: relative;
            padding: 8px 0;
        }

        .aisitex-nav-link:hover,
        .aisitex-nav-link.active {
            color: var(--aisitex-primary);
        }

        .aisitex-nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--aisitex-primary);
        }

        .aisitex-menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .aisitex-menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--aisitex-text);
            margin: 5px 0;
            transition: 0.3s;
        }

        .aisitex-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.4);
            z-index: 98;
        }

        /* 首屏舞台组件 */
        .aisitex-hero-stage {
            max-width: var(--aisitex-max-width);
            margin: 48px auto 64px;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 48px;
            align-items: center;
        }

        .aisitex-hero-content {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .aisitex-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: rgba(230, 0, 18, 0.08);
            color: var(--aisitex-primary);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            width: fit-content;
        }

        .aisitex-hero-title {
            font-size: 42px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--aisitex-text);
            letter-spacing: -1px;
        }

        .aisitex-hero-subtitle {
            font-size: 16px;
            color: var(--aisitex-text-light);
            line-height: 1.7;
        }

        .aisitex-hero-actions {
            display: flex;
            gap: 16px;
            margin-top: 8px;
        }

        .aisitex-btn-primary {
            background-color: var(--aisitex-primary);
            color: var(--aisitex-white);
            padding: 14px 28px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            font-size: 15px;
            transition: background-color 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(230, 0, 18, 0.25);
        }

        .aisitex-btn-primary:hover {
            background-color: #cc0010;
        }

        .aisitex-btn-secondary {
            background-color: var(--aisitex-white);
            color: var(--aisitex-text);
            border: 1px solid var(--aisitex-border);
            padding: 14px 28px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            font-size: 15px;
            transition: border-color 0.2s, color 0.2s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .aisitex-btn-secondary:hover {
            border-color: var(--aisitex-secondary);
            color: var(--aisitex-secondary);
        }

        .aisitex-hero-visual {
            background: var(--aisitex-white);
            border: 1px solid var(--aisitex-border);
            border-radius: 12px;
            padding: 16px;
            box-shadow: 0 12px 32px rgba(0,0,0,0.06);
        }

        .aisitex-hero-visual img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: 6px;
        }

        /* 场景化纵向路径组件 */
        .aisitex-section {
            max-width: var(--aisitex-max-width);
            margin: 0 auto 96px;
            padding: 0 24px;
        }

        .aisitex-section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }

        .aisitex-section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--aisitex-text);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .aisitex-section-summary {
            font-size: 16px;
            color: var(--aisitex-text-light);
            line-height: 1.6;
        }

        .aisitex-path-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .aisitex-path-steps {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .aisitex-step-item {
            display: flex;
            gap: 20px;
            position: relative;
        }

        .aisitex-step-number {
            font-size: 24px;
            font-weight: 800;
            color: var(--aisitex-primary);
            width: 40px;
            flex-shrink: 0;
        }

        .aisitex-step-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--aisitex-text);
            margin-bottom: 8px;
        }

        .aisitex-step-content p {
            font-size: 15px;
            color: var(--aisitex-text-light);
            line-height: 1.6;
        }

        .aisitex-path-visual {
            background: var(--aisitex-white);
            border: 1px solid var(--aisitex-border);
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 8px 24px rgba(0,0,0,0.04);
        }

        .aisitex-path-visual img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: 6px;
        }

        /* 导览内链矩阵组件 */
        .aisitex-nav-matrix {
            background-color: var(--aisitex-white);
            border-top: 1px solid var(--aisitex-border);
            border-bottom: 1px solid var(--aisitex-border);
            padding: 80px 0;
            margin-bottom: 80px;
        }

        .aisitex-matrix-container {
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .aisitex-matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .aisitex-matrix-card {
            background: var(--aisitex-bg);
            border: 1px solid var(--aisitex-border);
            border-radius: 8px;
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            text-decoration: none;
            transition: transform 0.2s, border-color 0.2s;
        }

        .aisitex-matrix-card:hover {
            transform: translateY(-4px);
            border-color: var(--aisitex-primary);
        }

        .aisitex-matrix-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--aisitex-text);
        }

        .aisitex-matrix-card p {
            font-size: 14px;
            color: var(--aisitex-text-light);
            line-height: 1.6;
            flex-grow: 1;
        }

        .aisitex-matrix-link-text {
            font-size: 14px;
            font-weight: 600;
            color: var(--aisitex-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 快速下载横幅组件 */
        .aisitex-download-banner {
            max-width: var(--aisitex-max-width);
            margin: 0 auto 96px;
            padding: 0 24px;
        }

        .aisitex-banner-box {
            background: linear-gradient(135deg, #1A1A1A 0%, #2D3748 100%);
            border-radius: 16px;
            padding: 64px;
            color: var(--aisitex-white);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 48px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.15);
        }

        .aisitex-banner-text {
            max-width: 600px;
        }

        .aisitex-banner-text h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .aisitex-banner-text p {
            font-size: 16px;
            color: #A0AEC0;
            line-height: 1.6;
        }

        /* 页脚组件 */
        .aisitex-footer {
            background-color: var(--aisitex-white);
            border-top: 1px solid var(--aisitex-border);
            padding: 48px 0;
            text-align: center;
        }

        .aisitex-footer-container {
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            align-items: center;
        }

        .aisitex-footer-links {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .aisitex-footer-links a {
            color: var(--aisitex-text-light);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.2s;
        }

        .aisitex-footer-links a:hover {
            color: var(--aisitex-primary);
        }

        .aisitex-footer-copy {
            font-size: 14px;
            color: #888888;
        }

        /* 响应式断点 */
        @media (max-width: 968px) {
            .aisitex-hero-stage,
            .aisitex-path-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

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

            .aisitex-banner-box {
                flex-direction: column;
                text-align: center;
                padding: 40px 24px;
            }

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

        @media (max-width: 768px) {
            .aisitex-nav-menu {
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: var(--aisitex-white);
                flex-direction: column;
                padding: 24px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                border-bottom: 1px solid var(--aisitex-border);
                gap: 16px;
                z-index: 99;
            }

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

            .aisitex-menu-toggle {
                display: block;
            }

            .aisitex-matrix-grid {
                grid-template-columns: 1fr;
            }

            .aisitex-hero-actions {
                flex-direction: column;
            }
        }

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #1A1A1A;
}

.aisitex-header, .aisitex-header *{
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

.aisitex-header{
            background-color: #FFFFFF;
            border-bottom: 1px solid #E5E7EB;
            position: sticky;
            top: 0;
            z-index: 100;
        }

.aisitex-header .aisitex-header-container{
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

.aisitex-header .aisitex-brand{
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }

.aisitex-header .aisitex-brand-logo{
            width: 36px;
            height: 36px;
            background-color: #E60012;
            color: #FFFFFF;
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 4px;
        }

.aisitex-header .aisitex-brand-name{
            font-size: 20px;
            font-weight: 700;
            color: #1A1A1A;
            letter-spacing: -0.5px;
        }

.aisitex-header .aisitex-nav-menu{
            display: flex;
            gap: 32px;
            align-items: center;
        }

.aisitex-header .aisitex-nav-link{
            text-decoration: none;
            color: #555555;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.2s;
            position: relative;
            padding: 8px 0;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #E60012;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #E60012;
        }

.aisitex-header .aisitex-menu-toggle{
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

.aisitex-header .aisitex-menu-toggle span{
            display: block;
            width: 24px;
            height: 2px;
            background-color: #1A1A1A;
            margin: 5px 0;
            transition: 0.3s;
        }

@media (max-width: 768px){.aisitex-header .aisitex-nav-menu{
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                padding: 24px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                border-bottom: 1px solid #E5E7EB;
                gap: 16px;
                z-index: 99;
            }

.aisitex-header .aisitex-nav-menu.active{
                display: flex;
            }

.aisitex-header .aisitex-menu-toggle{
                display: block;
            }}

.aisitex-footer {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #1A1A1A;
}

.aisitex-footer, .aisitex-footer *{
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

.aisitex-footer{
            background-color: #FFFFFF;
            border-top: 1px solid #E5E7EB;
            padding: 48px 0;
            text-align: center;
        }

.aisitex-footer .aisitex-footer-container{
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            align-items: center;
        }

.aisitex-footer .aisitex-footer-links{
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            justify-content: center;
        }

.aisitex-footer .aisitex-footer-links a{
            color: #555555;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.2s;
        }

.aisitex-footer .aisitex-footer-links a:hover{
            color: #E60012;
        }

.aisitex-footer .aisitex-footer-copy{
            font-size: 14px;
            color: #888888;
        }