:root {
            --aisitex-primary: #25D366;
            --aisitex-secondary: #075E54;
            --aisitex-bg: #F8F9FA;
            --aisitex-text: #111827;
            --aisitex-text-light: #4B5563;
            --aisitex-border: #E5E7EB;
            --aisitex-white: #FFFFFF;
            --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;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        /* 顶部导航组件 */
        .aisitex-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(248, 249, 250, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--aisitex-border);
        }

        .aisitex-nav-container {
            max-width: var(--aisitex-container);
            margin: 0 auto;
            padding: 1rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .aisitex-brand {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--aisitex-secondary);
        }

        .aisitex-brand img {
            width: 32px;
            height: 32px;
        }

        .aisitex-nav-menu {
            display: flex;
            align-items: center;
            gap: 2rem;
        }

        .aisitex-nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--aisitex-text-light);
            transition: color 0.2s ease;
            position: relative;
            padding: 0.25rem 0;
        }

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

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

        .aisitex-menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
        }

        .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;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.4);
            z-index: 98;
        }

        /* 首屏舞台组件 */
        .aisitex-hero-stage {
            max-width: var(--aisitex-container);
            margin: 0 auto;
            padding: 5rem 1.5rem 4rem;
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 4rem;
            align-items: center;
        }

        .aisitex-hero-content {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .aisitex-section-tag {
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--aisitex-secondary);
        }

        .aisitex-hero-title {
            font-size: clamp(2.5rem, 4vw, 3.5rem);
            line-height: 1.15;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--aisitex-text);
        }

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

        .aisitex-cta-group {
            display: flex;
            gap: 1rem;
            margin-top: 1rem;
            flex-wrap: wrap;
        }

        .aisitex-btn-primary {
            background-color: var(--aisitex-primary);
            color: var(--aisitex-white);
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .aisitex-btn-primary:hover {
            transform: translateY(-2px);
            background-color: #22bf5b;
        }

        .aisitex-btn-secondary {
            background-color: var(--aisitex-white);
            color: var(--aisitex-text);
            border: 1px solid var(--aisitex-border);
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 600;
            transition: all 0.2s ease;
            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 {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
        }

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

        /* 场景切片组件 */
        .aisitex-scenario-section {
            max-width: var(--aisitex-container);
            margin: 0 auto;
            padding: 5rem 1.5rem;
            border-top: 1px solid var(--aisitex-border);
        }

        .aisitex-scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .aisitex-scenario-visual {
            border-radius: 20px;
            overflow: hidden;
            background: var(--aisitex-white);
            border: 1px solid var(--aisitex-border);
            padding: 1.5rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.04);
        }

        .aisitex-scenario-visual img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }

        .aisitex-content-block h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
            color: var(--aisitex-text);
        }

        .aisitex-content-block p {
            font-size: 1.05rem;
            color: var(--aisitex-text-light);
            line-height: 1.8;
            margin-bottom: 1.5rem;
        }

        /* 平台选择矩阵 */
        .aisitex-platform-section {
            max-width: var(--aisitex-container);
            margin: 0 auto;
            padding: 5rem 1.5rem;
            border-top: 1px solid var(--aisitex-border);
        }

        .aisitex-section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 4rem;
        }

        .aisitex-section-header h2 {
            font-size: 2.25rem;
            font-weight: 800;
            margin-top: 0.5rem;
            color: var(--aisitex-text);
        }

        .aisitex-platform-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .aisitex-platform-card {
            background: var(--aisitex-white);
            border: 1px solid var(--aisitex-border);
            border-radius: 20px;
            padding: 2.5rem 2rem;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .aisitex-platform-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
            border-color: var(--aisitex-primary);
        }

        .aisitex-platform-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--aisitex-secondary);
        }

        .aisitex-platform-card p {
            color: var(--aisitex-text-light);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 2rem;
        }

        .aisitex-link-arrow {
            font-weight: 600;
            color: var(--aisitex-secondary);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .aisitex-link-arrow:hover {
            color: var(--aisitex-primary);
        }

        /* 底部组件 */
        .aisitex-footer {
            background-color: var(--aisitex-white);
            border-top: 1px solid var(--aisitex-border);
            padding: 3rem 1.5rem;
            margin-top: 5rem;
        }

        .aisitex-footer-container {
            max-width: var(--aisitex-container);
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .aisitex-footer-nav {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .aisitex-footer-nav a {
            color: var(--aisitex-text-light);
            font-size: 0.9rem;
            transition: color 0.2s;
        }

        .aisitex-footer-nav a:hover {
            color: var(--aisitex-secondary);
        }

        .aisitex-footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--aisitex-border);
            color: var(--aisitex-text-light);
            font-size: 0.85rem;
        }

        /* 响应式断点 */
        @media (max-width: 968px) {
            .aisitex-hero-stage,
            .aisitex-scenario-grid {
                grid-template-columns: 1fr;
                gap: 3rem;
            }

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

            .aisitex-nav-menu {
                display: none;
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--aisitex-white);
                flex-direction: column;
                padding: 2rem;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                border-bottom: 1px solid var(--aisitex-border);
            }

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

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

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

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #111827;
}

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

.aisitex-header a{
            text-decoration: none;
            color: inherit;
        }

.aisitex-header{
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(248, 249, 250, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #E5E7EB;
        }

.aisitex-header .aisitex-nav-container{
            max-width: 1200px;
            margin: 0 auto;
            padding: 1rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

.aisitex-header .aisitex-brand{
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: #075E54;
        }

.aisitex-header .aisitex-brand img{
            width: 32px;
            height: 32px;
        }

.aisitex-header .aisitex-nav-menu{
            display: flex;
            align-items: center;
            gap: 2rem;
        }

.aisitex-header .aisitex-nav-link{
            font-size: 0.95rem;
            font-weight: 500;
            color: #4B5563;
            transition: color 0.2s ease;
            position: relative;
            padding: 0.25rem 0;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #075E54;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #25D366;
        }

.aisitex-header .aisitex-menu-toggle{
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
        }

.aisitex-header .aisitex-menu-toggle span{
            display: block;
            width: 24px;
            height: 2px;
            background-color: #111827;
            margin: 5px 0;
            transition: 0.3s;
        }

@media (max-width: 968px){.aisitex-header .aisitex-nav-menu{
                display: none;
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                padding: 2rem;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                border-bottom: 1px solid #E5E7EB;
            }

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

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

.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: #111827;
}

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

.aisitex-footer a{
            text-decoration: none;
            color: inherit;
        }

.aisitex-footer{
            background-color: #FFFFFF;
            border-top: 1px solid #E5E7EB;
            padding: 3rem 1.5rem;
            margin-top: 5rem;
        }

.aisitex-footer .aisitex-footer-container{
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

.aisitex-footer .aisitex-footer-nav{
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }

.aisitex-footer .aisitex-footer-nav a{
            color: #4B5563;
            font-size: 0.9rem;
            transition: color 0.2s;
        }

.aisitex-footer .aisitex-footer-nav a:hover{
            color: #075E54;
        }

.aisitex-footer .aisitex-footer-bottom{
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1.5rem;
            border-top: 1px solid #E5E7EB;
            color: #4B5563;
            font-size: 0.85rem;
        }