:root {
            --aisitex-primary: #0078D4;
            --aisitex-secondary: #2B579A;
            --aisitex-bg: #F8F9FA;
            --aisitex-text: #242424;
            --aisitex-text-muted: #616161;
            --aisitex-white: #FFFFFF;
            --aisitex-border: #E1DFDD;
            --aisitex-container: 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;
            overflow-x: hidden;
        }

        /* 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: 1000;
        }

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

        .aisitex-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: var(--aisitex-text);
            font-weight: 700;
            font-size: 18px;
        }

        .aisitex-brand img {
            width: 36px;
            height: 36px;
            object-fit: contain;
        }

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

        .aisitex-nav-link {
            text-decoration: none;
            color: var(--aisitex-text-muted);
            font-size: 15px;
            font-weight: 500;
            transition: color 0.2s ease;
        }

        .aisitex-nav-link:hover,
        .aisitex-nav-link.active {
            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: transform 0.3s ease;
        }

        /* 首屏组件 */
        .aisitex-hero {
            background-color: var(--aisitex-white);
            padding: 80px 0;
            border-bottom: 1px solid var(--aisitex-border);
        }

        .aisitex-hero-inner {
            max-width: var(--aisitex-container);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

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

        .aisitex-tag {
            display: inline-block;
            background-color: rgba(0, 120, 212, 0.1);
            color: var(--aisitex-primary);
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 14px;
            font-weight: 500;
            width: fit-content;
        }

        .aisitex-h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--aisitex-text);
        }

        .aisitex-hero-desc {
            font-size: 18px;
            color: var(--aisitex-text-muted);
            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: 16px;
            transition: background-color 0.2s ease, transform 0.1s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .aisitex-btn-primary:hover {
            background-color: #005a9e;
        }

        .aisitex-btn-secondary {
            background-color: transparent;
            color: var(--aisitex-primary);
            border: 2px solid var(--aisitex-primary);
            padding: 12px 26px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: background-color 0.2s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .aisitex-btn-secondary:hover {
            background-color: rgba(0, 120, 212, 0.05);
        }

        .aisitex-hero-visual {
            position: relative;
        }

        .aisitex-hero-img {
            width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
            border: 1px solid var(--aisitex-border);
            animation: aisitexFloat 0.6s ease-out;
        }

        @keyframes aisitexFloat {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* 场景网格区块组件 */
        .aisitex-section {
            padding: 96px 0;
        }

        .aisitex-section-alt {
            background-color: var(--aisitex-white);
            border-top: 1px solid var(--aisitex-border);
            border-bottom: 1px solid var(--aisitex-border);
        }

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

        .aisitex-section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 64px auto;
        }

        .aisitex-h2 {
            font-size: 32px;
            font-weight: 600;
            color: var(--aisitex-text);
            margin-bottom: 16px;
        }

        .aisitex-section-summary {
            font-size: 17px;
            color: var(--aisitex-text-muted);
            line-height: 1.6;
        }

        .aisitex-scenario-grid {
            display: flex;
            flex-direction: column;
            gap: 64px;
        }

        .aisitex-scenario-item {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .aisitex-scenario-item:nth-child(even) {
            direction: rtl;
        }

        .aisitex-scenario-item:nth-child(even) > * {
            direction: ltr;
        }

        .aisitex-scenario-content {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .aisitex-scenario-number {
            font-size: 14px;
            font-weight: 700;
            color: var(--aisitex-primary);
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .aisitex-scenario-title {
            font-size: 24px;
            font-weight: 600;
            color: var(--aisitex-text);
        }

        .aisitex-scenario-desc {
            font-size: 16px;
            color: var(--aisitex-text-muted);
            line-height: 1.7;
        }

        .aisitex-scenario-img {
            width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
            border: 1px solid var(--aisitex-border);
        }

        /* 导航引导区块组件 */
        .aisitex-nav-links-section {
            background-color: var(--aisitex-bg);
            padding: 80px 0;
        }

        .aisitex-links-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .aisitex-link-card {
            background-color: var(--aisitex-white);
            padding: 32px;
            border-radius: 8px;
            border: 1px solid var(--aisitex-border);
            text-decoration: none;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .aisitex-link-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
            border-color: var(--aisitex-primary);
        }

        .aisitex-link-card-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--aisitex-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .aisitex-link-card-title::after {
            content: "→";
            color: var(--aisitex-primary);
            font-weight: 700;
        }

        .aisitex-link-card-desc {
            font-size: 15px;
            color: var(--aisitex-text-muted);
            line-height: 1.6;
        }

        /* 全宽行动横幅组件 */
        .aisitex-cta-banner {
            background: linear-gradient(135deg, var(--aisitex-secondary) 0%, var(--aisitex-primary) 100%);
            color: var(--aisitex-white);
            padding: 80px 0;
            text-align: center;
        }

        .aisitex-cta-inner {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 24px;
        }

        .aisitex-cta-title {
            font-size: 36px;
            font-weight: 700;
        }

        .aisitex-cta-desc {
            font-size: 18px;
            opacity: 0.9;
            line-height: 1.6;
        }

        .aisitex-btn-white {
            background-color: var(--aisitex-white);
            color: var(--aisitex-primary);
            padding: 16px 36px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: background-color 0.2s ease, transform 0.1s ease;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
        }

        .aisitex-btn-white:hover {
            background-color: #f1f1f1;
            transform: translateY(-2px);
        }

        /* 页脚组件 */
        .aisitex-footer {
            background-color: var(--aisitex-white);
            border-top: 1px solid var(--aisitex-border);
            padding: 48px 0;
            text-align: center;
            color: var(--aisitex-text-muted);
            font-size: 14px;
        }

        .aisitex-footer-inner {
            max-width: var(--aisitex-container);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
        }

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

        .aisitex-footer-links a {
            color: var(--aisitex-text-muted);
            text-decoration: none;
        }

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

        /* 响应式断点控制 */
        @media (max-width: 900px) {
            .aisitex-hero-inner {
                grid-template-columns: 1fr;
                gap: 40px;
                text-align: center;
            }

            .aisitex-hero-content {
                align-items: center;
            }

            .aisitex-tag {
                margin: 0 auto;
            }

            .aisitex-scenario-item,
            .aisitex-scenario-item:nth-child(even) {
                grid-template-columns: 1fr;
                gap: 24px;
                direction: ltr;
            }

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

        @media (max-width: 768px) {
            .aisitex-nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background-color: 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;
            }

            .aisitex-nav-links.is-open {
                display: flex;
            }

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

            .aisitex-h1 {
                font-size: 32px;
            }

            .aisitex-cta-title {
                font-size: 28px;
            }
        }

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #242424;
}

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

.aisitex-header{
            background-color: #FFFFFF;
            border-bottom: 1px solid #E1DFDD;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

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

.aisitex-header .aisitex-brand{
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: #242424;
            font-weight: 700;
            font-size: 18px;
        }

.aisitex-header .aisitex-brand img{
            width: 36px;
            height: 36px;
            object-fit: contain;
        }

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

.aisitex-header .aisitex-nav-link{
            text-decoration: none;
            color: #616161;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.2s ease;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #0078D4;
        }

.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: #242424;
            margin: 5px 0;
            transition: transform 0.3s ease;
        }

@media (max-width: 768px){.aisitex-header .aisitex-nav-links{
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background-color: #FFFFFF;
                flex-direction: column;
                padding: 24px;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
                border-bottom: 1px solid #E1DFDD;
                gap: 16px;
            }

.aisitex-header .aisitex-nav-links.is-open{
                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: #242424;
}

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

.aisitex-footer{
            background-color: #FFFFFF;
            border-top: 1px solid #E1DFDD;
            padding: 48px 0;
            text-align: center;
            color: #616161;
            font-size: 14px;
        }

.aisitex-footer .aisitex-footer-inner{
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
        }

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

.aisitex-footer .aisitex-footer-links a{
            color: #616161;
            text-decoration: none;
        }

.aisitex-footer .aisitex-footer-links a:hover{
            color: #0078D4;
        }