:root {
            --aisitex-primary: #0B5CFF;
            --aisitex-secondary: #101828;
            --aisitex-bg: #F8FAFC;
            --aisitex-text: #1D2939;
            --aisitex-muted: #475467;
            --aisitex-border: #E2E8F0;
            --aisitex-white: #FFFFFF;
            --aisitex-success: #12B76A;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", 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 {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(248, 250, 252, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--aisitex-border);
        }

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

        .aisitex-brand {
            display: flex;
            align-items: center;
            text-decoration: none;
            gap: 12px;
        }

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

        .aisitex-brand-text {
            font-size: 22px;
            font-weight: 700;
            color: var(--aisitex-secondary);
            letter-spacing: -0.5px;
        }

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

        .aisitex-nav-link {
            text-decoration: none;
            color: var(--aisitex-muted);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.2s;
            position: relative;
            padding: 8px 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;
            right: 0;
            height: 2px;
            background: var(--aisitex-primary);
            border-radius: 2px;
        }

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

        .aisitex-btn-primary {
            background: var(--aisitex-primary);
            color: var(--aisitex-white);
            padding: 10px 20px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(11, 92, 255, 0.2);
        }

        .aisitex-btn-primary:hover {
            background: #094ad1;
            transform: translateY(-1px);
        }

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

        .aisitex-menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--aisitex-secondary);
            margin: 5px 0;
            transition: 0.3s;
        }

        /* 移动端菜单遮罩 */
        .aisitex-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(16, 24, 40, 0.4);
            z-index: 998;
        }

        /* 主体内容区域 */
        main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 首屏区块 */
        .aisitex-hero {
            padding: 64px 0 40px;
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 48px;
            align-items: center;
        }

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

        .aisitex-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #EFF6FF;
            color: var(--aisitex-primary);
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            width: fit-content;
            border: 1px solid #DBEAFE;
        }

        .aisitex-hero-title {
            font-size: 42px;
            font-weight: 700;
            color: var(--aisitex-secondary);
            line-height: 1.2;
            letter-spacing: -1px;
        }

        .aisitex-hero-subtitle {
            font-size: 18px;
            color: var(--aisitex-muted);
            line-height: 1.5;
        }

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

        .aisitex-btn-secondary {
            background: var(--aisitex-white);
            color: var(--aisitex-secondary);
            border: 1px solid var(--aisitex-border);
            padding: 10px 20px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            transition: all 0.2s;
        }

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

        .aisitex-hero-visual {
            background: var(--aisitex-white);
            border-radius: 16px;
            border: 1px solid var(--aisitex-border);
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(16, 24, 40, 0.08);
        }

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

        /* 平台状态带 */
        .aisitex-platform-band {
            background: var(--aisitex-white);
            border: 1px solid var(--aisitex-border);
            border-radius: 16px;
            padding: 32px;
            margin: 40px 0;
            box-shadow: 0 4px 12px rgba(16, 24, 40, 0.03);
        }

        .aisitex-section-header {
            margin-bottom: 24px;
        }

        .aisitex-h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--aisitex-secondary);
            margin-bottom: 8px;
        }

        .aisitex-section-summary {
            color: var(--aisitex-muted);
            font-size: 15px;
        }

        .aisitex-platform-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .aisitex-platform-card {
            background: var(--aisitex-bg);
            border: 1px solid var(--aisitex-border);
            border-radius: 12px;
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: transform 0.2s, border-color 0.2s;
        }

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

        .aisitex-platform-name {
            font-weight: 600;
            font-size: 16px;
            color: var(--aisitex-secondary);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .aisitex-status-badge {
            font-size: 12px;
            background: #ECFDF3;
            color: #027A48;
            padding: 2px 8px;
            border-radius: 10px;
            font-weight: 500;
        }

        .aisitex-platform-ver {
            font-size: 14px;
            font-weight: 600;
            color: var(--aisitex-primary);
        }

        .aisitex-platform-note {
            font-size: 13px;
            color: var(--aisitex-muted);
        }

        /* 核心功能与矩阵区块 */
        .aisitex-features-section {
            margin: 64px 0;
        }

        .aisitex-features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }

        .aisitex-feature-card {
            background: var(--aisitex-white);
            border: 1px solid var(--aisitex-border);
            border-radius: 16px;
            padding: 32px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            position: relative;
            overflow: hidden;
        }

        .aisitex-feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--aisitex-primary);
        }

        .aisitex-feature-icon {
            width: 48px;
            height: 48px;
            background: #EFF6FF;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--aisitex-primary);
        }

        .aisitex-feature-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--aisitex-secondary);
        }

        .aisitex-feature-desc {
            font-size: 14px;
            color: var(--aisitex-muted);
            line-height: 1.6;
        }

        /* 快速导航指引横幅 */
        .aisitex-guide-banner {
            background: linear-gradient(135deg, #101828 0%, #1D2939 100%);
            border-radius: 20px;
            padding: 48px;
            color: var(--aisitex-white);
            margin: 64px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 32px;
        }

        .aisitex-guide-content {
            max-width: 600px;
        }

        .aisitex-guide-title {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .aisitex-guide-desc {
            color: #94A3B8;
            font-size: 16px;
            line-height: 1.5;
        }

        .aisitex-guide-actions {
            display: flex;
            gap: 16px;
            flex-shrink: 0;
        }

        /* 页脚组件 */
        .aisitex-footer {
            border-top: 1px solid var(--aisitex-border);
            background: var(--aisitex-white);
            padding: 48px 0;
            margin-top: 80px;
        }

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

        .aisitex-footer-info {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .aisitex-footer-brand {
            font-weight: 700;
            font-size: 18px;
            color: var(--aisitex-secondary);
        }

        .aisitex-footer-copy {
            font-size: 14px;
            color: var(--aisitex-muted);
        }

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

        .aisitex-footer-link {
            color: var(--aisitex-muted);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.2s;
        }

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

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .aisitex-hero {
                grid-template-columns: 1fr;
                gap: 32px;
                padding: 40px 0;
            }
            .aisitex-platform-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .aisitex-features-grid {
                grid-template-columns: 1fr;
            }
            .aisitex-guide-banner {
                flex-direction: column;
                align-items: flex-start;
                padding: 32px;
            }
        }

        @media (max-width: 768px) {
            .aisitex-nav-menu,
            .aisitex-nav-actions .aisitex-btn-primary {
                display: none;
            }
            .aisitex-menu-toggle {
                display: block;
            }
            .aisitex-hero-title {
                font-size: 32px;
            }
            .aisitex-platform-grid {
                grid-template-columns: 1fr;
            }
            .aisitex-footer-container {
                flex-direction: column;
                gap: 24px;
                align-items: flex-start;
            }

            /* 移动端菜单激活样式 */
            .aisitex-nav-menu.active {
                display: flex;
                flex-direction: column;
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--aisitex-white);
                padding: 24px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
                z-index: 999;
                border-bottom: 1px solid var(--aisitex-border);
            }
            .aisitex-nav-overlay.active {
                display: block;
            }
            .aisitex-menu-toggle.active span:nth-child(1) {
                transform: translateY(7px) rotate(45deg);
            }
            .aisitex-menu-toggle.active span:nth-child(2) {
                opacity: 0;
            }
            .aisitex-menu-toggle.active span:nth-child(3) {
                transform: translateY(-7px) rotate(-45deg);
            }
        }

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: #1D2939;
}

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

.aisitex-header{
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(248, 250, 252, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid #E2E8F0;
        }

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

.aisitex-header .aisitex-brand{
            display: flex;
            align-items: center;
            text-decoration: none;
            gap: 12px;
        }

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

.aisitex-header .aisitex-brand-text{
            font-size: 22px;
            font-weight: 700;
            color: #101828;
            letter-spacing: -0.5px;
        }

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

.aisitex-header .aisitex-nav-link{
            text-decoration: none;
            color: #475467;
            font-weight: 500;
            font-size: 15px;
            transition: color 0.2s;
            position: relative;
            padding: 8px 0;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #0B5CFF;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: #0B5CFF;
            border-radius: 2px;
        }

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

.aisitex-header .aisitex-btn-primary{
            background: #0B5CFF;
            color: #FFFFFF;
            padding: 10px 20px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(11, 92, 255, 0.2);
        }

.aisitex-header .aisitex-btn-primary:hover{
            background: #094ad1;
            transform: translateY(-1px);
        }

.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: #101828;
            margin: 5px 0;
            transition: 0.3s;
        }

@media (max-width: 768px){.aisitex-header .aisitex-nav-menu, .aisitex-header .aisitex-nav-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: 72px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                padding: 24px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
                z-index: 999;
                border-bottom: 1px solid #E2E8F0;
            }

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

.aisitex-header .aisitex-menu-toggle.active span:nth-child(1){
                transform: translateY(7px) rotate(45deg);
            }

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

.aisitex-header .aisitex-menu-toggle.active span:nth-child(3){
                transform: translateY(-7px) rotate(-45deg);
            }}

.aisitex-footer {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: #1D2939;
}

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

.aisitex-footer{
            border-top: 1px solid #E2E8F0;
            background: #FFFFFF;
            padding: 48px 0;
            margin-top: 80px;
        }

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

.aisitex-footer .aisitex-footer-info{
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

.aisitex-footer .aisitex-footer-brand{
            font-weight: 700;
            font-size: 18px;
            color: #101828;
        }

.aisitex-footer .aisitex-footer-copy{
            font-size: 14px;
            color: #475467;
        }

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

.aisitex-footer .aisitex-footer-link{
            color: #475467;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.2s;
        }

.aisitex-footer .aisitex-footer-link:hover{
            color: #0B5CFF;
        }

@media (max-width: 768px){.aisitex-footer .aisitex-footer-container{
                flex-direction: column;
                gap: 24px;
                align-items: flex-start;
            }}