:root {
            --aisitex-primary: #D42D2D;
            --aisitex-primary-hover: #b52222;
            --aisitex-secondary: #1E293B;
            --aisitex-bg: #F8FAFC;
            --aisitex-text: #0F172A;
            --aisitex-text-muted: #64748B;
            --aisitex-white: #FFFFFF;
            --aisitex-border: #E2E8F0;
            --aisitex-radius: 12px;
            --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;
            overflow-x: hidden;
        }

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

        /* 顶部导航栏 */
        .aisitex-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(248, 250, 252, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--aisitex-border);
            height: 72px;
            display: flex;
            align-items: center;
        }

        .aisitex-nav-container {
            max-width: var(--aisitex-max-width);
            width: 100%;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .aisitex-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            font-size: 20px;
            color: var(--aisitex-secondary);
        }

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

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

        .aisitex-nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--aisitex-text-muted);
            transition: color 0.2s ease;
        }

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

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

        .aisitex-btn-header {
            background-color: var(--aisitex-primary);
            color: var(--aisitex-white);
            padding: 10px 20px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            transition: background-color 0.2s;
        }

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

        .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-secondary);
            margin: 5px 0;
            transition: 0.3s;
        }

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

        /* 首屏 Hero Banner */
        .aisitex-hero {
            position: relative;
            padding: 80px 24px 100px;
            overflow: hidden;
            background: linear-gradient(135deg, #F8FAFC 0%, #EEF2F6 100%);
        }

        .aisitex-hero::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -100px;
            width: 600px;
            height: 600px;
            background: linear-gradient(135deg, rgba(212, 45, 45, 0.05), rgba(30, 41, 59, 0.05));
            transform: rotate(15deg);
            border-radius: 60px;
            z-index: 0;
            pointer-events: none;
        }

        .aisitex-hero-container {
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .aisitex-hero-content h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--aisitex-secondary);
            margin-bottom: 20px;
        }

        .aisitex-hero-content p {
            font-size: 18px;
            color: var(--aisitex-text-muted);
            margin-bottom: 36px;
            line-height: 1.7;
        }

        .aisitex-hero-btns {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 48px;
        }

        .aisitex-btn-primary {
            background-color: var(--aisitex-primary);
            color: var(--aisitex-white);
            padding: 16px 32px;
            border-radius: var(--aisitex-radius);
            font-size: 16px;
            font-weight: 600;
            box-shadow: 0 10px 20px rgba(212, 45, 45, 0.2);
            transition: transform 0.2s, background-color 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

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

        .aisitex-btn-secondary {
            background-color: var(--aisitex-white);
            color: var(--aisitex-secondary);
            border: 1px solid var(--aisitex-border);
            padding: 16px 32px;
            border-radius: var(--aisitex-radius);
            font-size: 16px;
            font-weight: 600;
            transition: border-color 0.2s, background-color 0.2s;
        }

        .aisitex-btn-secondary:hover {
            border-color: var(--aisitex-secondary);
            background-color: #F1F5F9;
        }

        .aisitex-hero-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            border-top: 1px solid var(--aisitex-border);
            padding-top: 32px;
        }

        .aisitex-hero-feature-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--aisitex-secondary);
            margin-bottom: 6px;
        }

        .aisitex-hero-feature-item p {
            font-size: 14px;
            color: var(--aisitex-text-muted);
            margin: 0;
        }

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

        .aisitex-hero-image img {
            width: 100%;
            height: auto;
            border-radius: 20px;
            box-shadow: 0 25px 50px -12px rgba(30, 41, 59, 0.15);
        }

        /* 通用区块与色彩区 */
        .aisitex-section {
            padding: 100px 24px;
            position: relative;
        }

        .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-max-width);
            margin: 0 auto;
        }

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

        .aisitex-section-header h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--aisitex-secondary);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

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

        /* 生态组件网格 */
        .aisitex-ecosystem-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-bottom: 60px;
        }

        .aisitex-eco-card {
            background-color: var(--aisitex-bg);
            border: 1px solid var(--aisitex-border);
            border-radius: var(--aisitex-radius);
            padding: 32px;
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .aisitex-section-alt .aisitex-eco-card {
            background-color: var(--aisitex-white);
        }

        .aisitex-eco-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.06);
        }

        .aisitex-eco-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--aisitex-secondary);
            margin-bottom: 12px;
        }

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

        .aisitex-eco-showcase {
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--aisitex-border);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
        }

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

        /* 下载行动区域 */
        .aisitex-download-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
            max-width: 900px;
            margin: 0 auto;
        }

        .aisitex-download-card {
            background: var(--aisitex-bg);
            border: 1px solid var(--aisitex-border);
            border-radius: 16px;
            padding: 40px;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: space-between;
        }

        .aisitex-download-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--aisitex-secondary);
            margin-bottom: 12px;
        }

        .aisitex-download-card p {
            font-size: 15px;
            color: var(--aisitex-text-muted);
            margin-bottom: 24px;
        }

        .aisitex-download-card .aisitex-btn-primary {
            width: 100%;
            justify-content: center;
        }

        /* 相关内链导航区 */
        .aisitex-related-links {
            padding: 80px 24px;
            background: #EEF2F6;
        }

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

        .aisitex-related-item {
            background: var(--aisitex-white);
            padding: 24px;
            border-radius: 12px;
            border: 1px solid var(--aisitex-border);
            transition: all 0.2s;
        }

        .aisitex-related-item:hover {
            border-color: var(--aisitex-primary);
            transform: translateY(-2px);
        }

        .aisitex-related-item h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--aisitex-secondary);
            margin-bottom: 8px;
        }

        .aisitex-related-item p {
            font-size: 13px;
            color: var(--aisitex-text-muted);
            line-height: 1.5;
            margin-bottom: 16px;
        }

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

        /* 页脚 */
        .aisitex-footer {
            background-color: var(--aisitex-secondary);
            color: var(--aisitex-white);
            padding: 60px 24px 30px;
        }

        .aisitex-footer-container {
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 40px;
            margin-bottom: 30px;
        }

        .aisitex-footer-brand {
            font-size: 18px;
            font-weight: 700;
        }

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

        .aisitex-footer-nav a {
            color: #94A3B8;
            font-size: 14px;
            transition: color 0.2s;
        }

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

        .aisitex-footer-copy {
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            text-align: center;
            font-size: 13px;
            color: #64748B;
        }

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

            .aisitex-hero-content h1 {
                font-size: 38px;
            }

            .aisitex-hero-btns {
                justify-content: center;
            }

            .aisitex-hero-features {
                justify-items: center;
            }

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

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

        @media (max-width: 768px) {
            .aisitex-nav-menu {
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--aisitex-white);
                flex-direction: column;
                align-items: stretch;
                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-menu.active {
                display: flex;
            }

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

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

            .aisitex-nav-actions {
                display: none;
            }

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

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

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

            .aisitex-footer-container {
                flex-direction: column;
                gap: 20px;
                text-align: center;
            }

            .aisitex-footer-nav {
                flex-wrap: wrap;
                justify-content: center;
            }
        }

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #0F172A;
}

.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: 1000;
            background: rgba(248, 250, 252, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #E2E8F0;
            height: 72px;
            display: flex;
            align-items: center;
        }

.aisitex-header .aisitex-nav-container{
            max-width: 1200px;
            width: 100%;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

.aisitex-header .aisitex-brand{
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            font-size: 20px;
            color: #1E293B;
        }

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

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

.aisitex-header .aisitex-nav-link{
            font-size: 15px;
            font-weight: 500;
            color: #64748B;
            transition: color 0.2s ease;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #D42D2D;
        }

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

.aisitex-header .aisitex-btn-header{
            background-color: #D42D2D;
            color: #FFFFFF;
            padding: 10px 20px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            transition: background-color 0.2s;
        }

.aisitex-header .aisitex-btn-header:hover{
            background-color: #b52222;
        }

.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: #1E293B;
            margin: 5px 0;
            transition: 0.3s;
        }

@media (max-width: 768px){.aisitex-header .aisitex-nav-menu{
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                align-items: stretch;
                padding: 24px;
                border-bottom: 1px solid #E2E8F0;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                z-index: 999;
            }

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

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

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

.aisitex-header .aisitex-nav-actions{
                display: none;
            }}

.aisitex-footer {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #0F172A;
}

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

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

.aisitex-footer{
            background-color: #1E293B;
            color: #FFFFFF;
            padding: 60px 24px 30px;
        }

.aisitex-footer .aisitex-footer-container{
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 40px;
            margin-bottom: 30px;
        }

.aisitex-footer .aisitex-footer-brand{
            font-size: 18px;
            font-weight: 700;
        }

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

.aisitex-footer .aisitex-footer-nav a{
            color: #94A3B8;
            font-size: 14px;
            transition: color 0.2s;
        }

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

.aisitex-footer .aisitex-footer-copy{
            max-width: 1200px;
            margin: 0 auto;
            text-align: center;
            font-size: 13px;
            color: #64748B;
        }

@media (max-width: 768px){.aisitex-footer .aisitex-footer-container{
                flex-direction: column;
                gap: 20px;
                text-align: center;
            }

.aisitex-footer .aisitex-footer-nav{
                flex-wrap: wrap;
                justify-content: center;
            }}