:root {
            --aisitex-bg: #FFFFFF;
            --aisitex-text: #37352F;
            --aisitex-secondary: #2F3437;
            --aisitex-accent: #000000;
            --aisitex-border: rgba(55, 53, 47, 0.09);
            --aisitex-warm-bg: #F7F6F3;
            --aisitex-hover: rgba(55, 53, 47, 0.06);
            --aisitex-max-width: 1200px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, "Apple Color Emoji", Arial, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol";
            background-color: var(--aisitex-bg);
            color: var(--aisitex-text);
            line-height: 1.5;
            -webkit-font-smoothing: antialiased;
        }

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

        /* 顶部导航组件 */
        .aisitex-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--aisitex-border);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 32px;
            z-index: 1000;
        }

        .aisitex-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            font-size: 18px;
            letter-spacing: -0.3px;
        }

        .aisitex-brand img {
            width: 28px;
            height: 28px;
            object-fit: contain;
        }

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

        .aisitex-nav-menu {
            display: flex;
            gap: 24px;
            align-items: center;
        }

        .aisitex-nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--aisitex-secondary);
            padding: 6px 12px;
            border-radius: 4px;
            transition: background 0.2s, color 0.2s;
        }

        .aisitex-nav-link:hover {
            background-color: var(--aisitex-hover);
            color: var(--aisitex-accent);
        }

        .aisitex-nav-link.active {
            color: var(--aisitex-accent);
            background-color: var(--aisitex-hover);
            font-weight: 600;
        }

        .aisitex-header-actions {
            display: flex;
            gap: 12px;
            align-items: center;
        }

        .aisitex-btn-primary {
            background-color: var(--aisitex-accent);
            color: #fff;
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            transition: opacity 0.2s;
        }

        .aisitex-btn-primary:hover {
            opacity: 0.85;
        }

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

        .aisitex-menu-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--aisitex-text);
            margin: 4px 0;
            transition: 0.3s;
        }

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

        /* 主体容器 */
        main {
            padding-top: 64px;
        }

        .aisitex-container {
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        /* 首屏 Hero 模块 */
        .aisitex-hero {
            padding: 80px 0 100px;
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 64px;
            align-items: center;
        }

        .aisitex-hero-content {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }

        .aisitex-badge {
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: #787774;
            margin-bottom: 16px;
            background: var(--aisitex-warm-bg);
            padding: 4px 10px;
            border-radius: 4px;
            border: 1px solid var(--aisitex-border);
        }

        .aisitex-hero-title {
            font-size: 48px;
            line-height: 1.1;
            font-weight: 700;
            letter-spacing: -1.5px;
            margin-bottom: 20px;
            color: var(--aisitex-accent);
        }

        .aisitex-hero-desc {
            font-size: 18px;
            line-height: 1.6;
            color: var(--aisitex-secondary);
            margin-bottom: 32px;
        }

        .aisitex-hero-actions {
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .aisitex-btn-secondary {
            background-color: transparent;
            color: var(--aisitex-text);
            border: 1px solid var(--aisitex-border);
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            transition: background 0.2s;
        }

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

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

        .aisitex-hero-img {
            width: 100%;
            border-radius: 12px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
            border: 1px solid var(--aisitex-border);
            display: block;
        }

        /* 任务管理与工作流区块 */
        .aisitex-section {
            padding: 96px 0;
            background-color: var(--aisitex-warm-bg);
            border-top: 1px solid var(--aisitex-border);
            border-bottom: 1px solid var(--aisitex-border);
        }

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

        .aisitex-section-title {
            font-size: 36px;
            font-weight: 700;
            letter-spacing: -1px;
            margin-bottom: 16px;
        }

        .aisitex-section-desc {
            font-size: 16px;
            color: var(--aisitex-secondary);
            line-height: 1.6;
        }

        .aisitex-workflow-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 64px;
        }

        .aisitex-workflow-grid:last-child {
            margin-bottom: 0;
        }

        .aisitex-workflow-grid.reverse {
            direction: rtl;
        }

        .aisitex-workflow-grid.reverse > * {
            direction: ltr;
        }

        .aisitex-workflow-card {
            background: #fff;
            padding: 40px;
            border-radius: 12px;
            border: 1px solid var(--aisitex-border);
            box-shadow: 0 4px 12px rgba(0,0,0,0.02);
        }

        .aisitex-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: #2383E2;
            background: rgba(35, 131, 226, 0.1);
            padding: 2px 8px;
            border-radius: 4px;
            margin-bottom: 16px;
        }

        .aisitex-workflow-card h3 {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .aisitex-workflow-card p {
            font-size: 15px;
            color: var(--aisitex-secondary);
            line-height: 1.6;
        }

        .aisitex-workflow-img {
            width: 100%;
            border-radius: 8px;
            border: 1px solid var(--aisitex-border);
            box-shadow: 0 12px 24px rgba(0,0,0,0.05);
        }

        /* 生态与扩展区块 */
        .aisitex-ecosystem {
            padding: 96px 0;
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .aisitex-ecosystem-text h2 {
            font-size: 36px;
            font-weight: 700;
            letter-spacing: -1px;
            margin-bottom: 20px;
        }

        .aisitex-ecosystem-text p {
            font-size: 16px;
            color: var(--aisitex-secondary);
            line-height: 1.6;
            margin-bottom: 32px;
        }

        /* 引导路径区块 */
        .aisitex-paths {
            padding: 96px 0;
            background-color: #fff;
        }

        .aisitex-paths-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-top: 48px;
        }

        .aisitex-path-card {
            background: var(--aisitex-warm-bg);
            border: 1px solid var(--aisitex-border);
            border-radius: 12px;
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .aisitex-path-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px rgba(0,0,0,0.04);
        }

        .aisitex-path-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .aisitex-path-card p {
            font-size: 14px;
            color: var(--aisitex-secondary);
            line-height: 1.6;
            margin-bottom: 24px;
        }

        .aisitex-path-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--aisitex-accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .aisitex-path-link:hover {
            text-decoration: underline;
        }

        /* 页脚 */
        .aisitex-footer {
            border-top: 1px solid var(--aisitex-border);
            padding: 48px 0;
            background-color: var(--aisitex-warm-bg);
            font-size: 14px;
            color: var(--aisitex-secondary);
        }

        .aisitex-footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 响应式媒体查询 */
        @media (max-width: 968px) {
            .aisitex-hero,
            .aisitex-workflow-grid,
            .aisitex-ecosystem,
            .aisitex-paths-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .aisitex-workflow-grid.reverse {
                direction: ltr;
            }

            .aisitex-hero-title {
                font-size: 36px;
            }

            .aisitex-nav-menu,
            .aisitex-header-actions .aisitex-btn-primary {
                display: none;
            }

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

            .aisitex-nav-menu.active {
                display: flex;
                flex-direction: column;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                padding: 24px;
                border-bottom: 1px solid var(--aisitex-border);
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                z-index: 999;
            }

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

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, "Apple Color Emoji", Arial, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol";
    line-height: 1.5;
    color: #37352F;
}

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

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

.aisitex-header{
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(55, 53, 47, 0.09);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 32px;
            z-index: 1000;
        }

.aisitex-header .aisitex-brand{
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            font-size: 18px;
            letter-spacing: -0.3px;
        }

.aisitex-header .aisitex-brand img{
            width: 28px;
            height: 28px;
            object-fit: contain;
        }

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

.aisitex-header .aisitex-nav-menu{
            display: flex;
            gap: 24px;
            align-items: center;
        }

.aisitex-header .aisitex-nav-link{
            font-size: 14px;
            font-weight: 500;
            color: #2F3437;
            padding: 6px 12px;
            border-radius: 4px;
            transition: background 0.2s, color 0.2s;
        }

.aisitex-header .aisitex-nav-link:hover{
            background-color: rgba(55, 53, 47, 0.06);
            color: #000000;
        }

.aisitex-header .aisitex-nav-link.active{
            color: #000000;
            background-color: rgba(55, 53, 47, 0.06);
            font-weight: 600;
        }

.aisitex-header .aisitex-header-actions{
            display: flex;
            gap: 12px;
            align-items: center;
        }

.aisitex-header .aisitex-btn-primary{
            background-color: #000000;
            color: #fff;
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            transition: opacity 0.2s;
        }

.aisitex-header .aisitex-btn-primary:hover{
            opacity: 0.85;
        }

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

.aisitex-header .aisitex-menu-toggle span{
            display: block;
            width: 20px;
            height: 2px;
            background: #37352F;
            margin: 4px 0;
            transition: 0.3s;
        }

@media (max-width: 968px){.aisitex-header .aisitex-nav-menu, .aisitex-header .aisitex-header-actions .aisitex-btn-primary{
                display: none;
            }

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

.aisitex-header .aisitex-nav-menu.active{
                display: flex;
                flex-direction: column;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                padding: 24px;
                border-bottom: 1px solid rgba(55, 53, 47, 0.09);
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                z-index: 999;
            }

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

.aisitex-footer {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, "Apple Color Emoji", Arial, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol";
    line-height: 1.5;
    color: #37352F;
}

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

.aisitex-footer .aisitex-brand{
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            font-size: 18px;
            letter-spacing: -0.3px;
        }

.aisitex-footer .aisitex-brand img{
            width: 28px;
            height: 28px;
            object-fit: contain;
        }

.aisitex-footer .aisitex-container{
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

.aisitex-footer{
            border-top: 1px solid rgba(55, 53, 47, 0.09);
            padding: 48px 0;
            background-color: #F7F6F3;
            font-size: 14px;
            color: #2F3437;
        }

.aisitex-footer .aisitex-footer-content{
            display: flex;
            justify-content: space-between;
            align-items: center;
        }