:root {
            --aisitex-primary: #0088cc;
            --aisitex-secondary: #229ed9;
            --aisitex-bg: #f8f9fa;
            --aisitex-text: #212529;
            --aisitex-text-muted: #6c757d;
            --aisitex-border: #e9ecef;
            --aisitex-white: #ffffff;
            --aisitex-container: 1200px;
            --aisitex-radius: 12px;
            --aisitex-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *, *::before, *::after {
            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;
        }

        /* 顶部导航栏 */
        .aisitex-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--aisitex-border);
        }

        .aisitex-nav-container {
            max-width: var(--aisitex-container);
            margin: 0 auto;
            padding: 0 20px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .aisitex-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: var(--aisitex-text);
            font-weight: 700;
            font-size: 1.2rem;
        }

        .aisitex-brand-logo {
            width: 38px;
            height: 38px;
            object-fit: contain;
        }

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

        .aisitex-nav-link {
            text-decoration: none;
            color: var(--aisitex-text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--aisitex-transition);
            position: relative;
            padding: 6px 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);
            border-radius: 2px;
        }

        .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: var(--aisitex-transition);
        }

        .aisitex-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 998;
        }

        /* 主体容器 */
        .aisitex-main {
            max-width: var(--aisitex-container);
            margin: 0 auto;
            padding: 40px 20px;
        }

        /* 首屏组件 */
        .aisitex-hero {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 40px;
            align-items: center;
            padding: 40px 0 80px;
        }

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

        .aisitex-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background-color: rgba(0, 136, 204, 0.1);
            color: var(--aisitex-primary);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            width: fit-content;
        }

        .aisitex-hero-title {
            font-size: 2.8rem;
            line-height: 1.2;
            font-weight: 800;
            color: var(--aisitex-text);
            letter-spacing: -0.02em;
        }

        .aisitex-hero-subtitle {
            font-size: 1.1rem;
            color: var(--aisitex-text-muted);
            line-height: 1.7;
        }

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

        .aisitex-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            border-radius: var(--aisitex-radius);
            font-weight: 600;
            text-decoration: none;
            transition: var(--aisitex-transition);
            font-size: 1rem;
            cursor: pointer;
            border: none;
        }

        .aisitex-btn-primary {
            background-color: var(--aisitex-primary);
            color: var(--aisitex-white);
            box-shadow: 0 4px 14px rgba(0, 136, 204, 0.3);
        }

        .aisitex-btn-primary:hover {
            background-color: #0077b3;
            transform: translateY(-2px);
        }

        .aisitex-btn-secondary {
            background-color: var(--aisitex-white);
            color: var(--aisitex-text);
            border: 1px solid var(--aisitex-border);
        }

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

        .aisitex-hero-media {
            position: relative;
            border-radius: var(--aisitex-radius);
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
            border: 1px solid var(--aisitex-border);
            background: var(--aisitex-white);
        }

        .aisitex-hero-img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* 场景指南组件 */
        .aisitex-section {
            padding: 60px 0;
            border-top: 1px solid var(--aisitex-border);
        }

        .aisitex-section-header {
            max-width: 700px;
            margin-bottom: 50px;
        }

        .aisitex-section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .aisitex-section-desc {
            color: var(--aisitex-text-muted);
            font-size: 1.05rem;
        }

        .aisitex-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .aisitex-card {
            background: var(--aisitex-white);
            padding: 36px 30px;
            border-radius: var(--aisitex-radius);
            border: 1px solid var(--aisitex-border);
            transition: var(--aisitex-transition);
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .aisitex-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
            border-color: var(--aisitex-secondary);
        }

        .aisitex-card-step {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--aisitex-primary);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .aisitex-card-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--aisitex-text);
        }

        .aisitex-card-desc {
            color: var(--aisitex-text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* 相关导航指引区 */
        .aisitex-pathways {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin: 40px 0 80px;
        }

        .aisitex-path-card {
            background: var(--aisitex-white);
            padding: 28px;
            border-radius: var(--aisitex-radius);
            border: 1px solid var(--aisitex-border);
            text-decoration: none;
            color: inherit;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: var(--aisitex-transition);
        }

        .aisitex-path-card:hover {
            border-color: var(--aisitex-primary);
            box-shadow: 0 8px 24px rgba(0, 136, 204, 0.1);
        }

        .aisitex-path-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--aisitex-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .aisitex-path-title::after {
            content: '→';
            font-weight: 400;
        }

        .aisitex-path-desc {
            font-size: 0.9rem;
            color: var(--aisitex-text-muted);
            line-height: 1.5;
        }

        /* 页脚 */
        .aisitex-footer {
            background-color: var(--aisitex-white);
            border-top: 1px solid var(--aisitex-border);
            padding: 40px 0;
            margin-top: 60px;
            text-align: center;
            color: var(--aisitex-text-muted);
            font-size: 0.9rem;
        }

        .aisitex-footer-content {
            max-width: var(--aisitex-container);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: center;
        }

        .aisitex-footer-links {
            display: flex;
            gap: 24px;
        }

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

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

        /* 响应式适配 */
        @media (max-width: 968px) {
            .aisitex-hero {
                grid-template-columns: 1fr;
                gap: 40px;
                padding: 20px 0 40px;
            }

            .aisitex-hero-title {
                font-size: 2.2rem;
            }

            .aisitex-grid-3,
            .aisitex-pathways {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .aisitex-nav-menu {
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background-color: var(--aisitex-white);
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 20px;
                border-bottom: 1px solid var(--aisitex-border);
                transform: translateY(-150%);
                transition: transform 0.3s ease;
                z-index: 999;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            }

            .aisitex-nav-menu.active {
                transform: translateY(0);
            }

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

            .aisitex-menu-toggle.active span:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }

            .aisitex-menu-toggle.active span:nth-child(2) {
                opacity: 0;
            }

            .aisitex-menu-toggle.active span:nth-child(3) {
                transform: rotate(-45deg) translate(5px, -5px);
            }

            .aisitex-nav-overlay.active {
                display: block;
            }

            .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: #212529;
}

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

.aisitex-header{
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #e9ecef;
        }

.aisitex-header .aisitex-nav-container{
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            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;
            color: #212529;
            font-weight: 700;
            font-size: 1.2rem;
        }

.aisitex-header .aisitex-brand-logo{
            width: 38px;
            height: 38px;
            object-fit: contain;
        }

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

.aisitex-header .aisitex-nav-link{
            text-decoration: none;
            color: #6c757d;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            padding: 6px 0;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #0088cc;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #0088cc;
            border-radius: 2px;
        }

.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: #212529;
            margin: 5px 0;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

.aisitex-header .aisitex-nav-overlay{
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 998;
        }

@media (max-width: 768px){.aisitex-header .aisitex-nav-menu{
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background-color: #ffffff;
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 20px;
                border-bottom: 1px solid #e9ecef;
                transform: translateY(-150%);
                transition: transform 0.3s ease;
                z-index: 999;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            }

.aisitex-header .aisitex-nav-menu.active{
                transform: translateY(0);
            }

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

.aisitex-header .aisitex-menu-toggle.active span:nth-child(1){
                transform: rotate(45deg) translate(5px, 5px);
            }

.aisitex-header .aisitex-menu-toggle.active span:nth-child(2){
                opacity: 0;
            }

.aisitex-header .aisitex-menu-toggle.active span:nth-child(3){
                transform: rotate(-45deg) translate(5px, -5px);
            }

.aisitex-header .aisitex-nav-overlay.active{
                display: block;
            }}

.aisitex-footer {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #212529;
}

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

.aisitex-footer{
            background-color: #ffffff;
            border-top: 1px solid #e9ecef;
            padding: 40px 0;
            margin-top: 60px;
            text-align: center;
            color: #6c757d;
            font-size: 0.9rem;
        }

.aisitex-footer .aisitex-footer-content{
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: center;
        }

.aisitex-footer .aisitex-footer-links{
            display: flex;
            gap: 24px;
        }

.aisitex-footer .aisitex-footer-links a{
            color: #6c757d;
            text-decoration: none;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

.aisitex-footer .aisitex-footer-links a:hover{
            color: #0088cc;
        }