:root {
            --aisitex-primary: #0052D9;
            --aisitex-primary-hover: #003FB3;
            --aisitex-secondary: #101828;
            --aisitex-bg: #F4F6F8;
            --aisitex-surface: #FFFFFF;
            --aisitex-text: #344054;
            --aisitex-text-light: #667085;
            --aisitex-border: #D0D5DD;
            --aisitex-border-light: #EAECF0;
            --aisitex-radius: 4px;
            --aisitex-shadow: 0 4px 20px rgba(16, 24, 40, 0.05);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft YaHei", 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: 1000;
            background-color: var(--aisitex-surface);
            border-bottom: 1px solid var(--aisitex-border-light);
            box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        }

        .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;
            gap: 12px;
            font-weight: 700;
            font-size: 20px;
            color: var(--aisitex-secondary);
        }

        .aisitex-brand-logo {
            width: 36px;
            height: 36px;
            object-fit: contain;
        }

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

        .aisitex-nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--aisitex-text);
            transition: color 0.2s;
            padding: 8px 0;
            position: relative;
        }

        .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);
        }

        .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: 99;
        }

        /* 主容器 */
        .aisitex-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 40px 24px;
        }

        /* 首屏布局：左侧窄栏判定系统状态，右侧大留白承接操作 */
        .aisitex-hero {
            display: grid;
            grid-template-columns: 380px 1fr;
            gap: 40px;
            align-items: center;
            background: var(--aisitex-surface);
            border: 1px solid var(--aisitex-border-light);
            padding: 56px;
            margin-bottom: 48px;
            box-shadow: var(--aisitex-shadow);
        }

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

        .aisitex-hero-h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--aisitex-secondary);
            line-height: 1.25;
        }

        .aisitex-hero-desc {
            font-size: 15px;
            color: var(--aisitex-text-light);
            line-height: 1.6;
        }

        .aisitex-platform-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .aisitex-tag {
            font-size: 12px;
            font-weight: 500;
            padding: 4px 10px;
            background: var(--aisitex-bg);
            color: var(--aisitex-text);
            border: 1px solid var(--aisitex-border-light);
            border-radius: var(--aisitex-radius);
        }

        .aisitex-cta-group {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 8px;
        }

        .aisitex-btn-primary {
            display: inline-flex;
            justify-content: center;
            align-items: center;
            background-color: var(--aisitex-primary);
            color: white;
            font-weight: 600;
            font-size: 16px;
            padding: 14px 28px;
            border-radius: var(--aisitex-radius);
            border: none;
            cursor: pointer;
            transition: background-color 0.2s, transform 0.1s;
            text-align: center;
        }

        .aisitex-btn-primary:hover {
            background-color: var(--aisitex-primary-hover);
            transform: translateY(-1px);
        }

        .aisitex-btn-secondary {
            display: inline-flex;
            justify-content: center;
            align-items: center;
            background-color: transparent;
            color: var(--aisitex-text);
            font-weight: 500;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: var(--aisitex-radius);
            border: 1px solid var(--aisitex-border);
            cursor: pointer;
            transition: all 0.2s;
            text-align: center;
        }

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

        .aisitex-status-text {
            font-size: 13px;
            color: var(--aisitex-text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .aisitex-status-dot {
            width: 8px;
            height: 8px;
            background-color: #12B76A;
            border-radius: 50%;
        }

        .aisitex-hero-right {
            position: relative;
            overflow: hidden;
            border-radius: var(--aisitex-radius);
            border: 1px solid var(--aisitex-border-light);
            background: #fff;
        }

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

        /* 章节通用样式 */
        .aisitex-section {
            background: var(--aisitex-surface);
            border: 1px solid var(--aisitex-border-light);
            padding: 48px;
            margin-bottom: 32px;
            box-shadow: var(--aisitex-shadow);
        }

        .aisitex-section-header {
            margin-bottom: 36px;
        }

        .aisitex-section-title {
            font-size: 24px;
            font-weight: 600;
            color: var(--aisitex-secondary);
            margin-bottom: 12px;
        }

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

        /* 流程对照区块 */
        .aisitex-contrast-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-bottom: 36px;
        }

        .aisitex-contrast-card {
            background: var(--aisitex-bg);
            border: 1px solid var(--aisitex-border-light);
            padding: 28px;
            border-radius: var(--aisitex-radius);
        }

        .aisitex-contrast-stage {
            font-size: 14px;
            font-weight: 600;
            color: var(--aisitex-primary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .aisitex-contrast-desc {
            font-size: 15px;
            color: var(--aisitex-text);
            line-height: 1.6;
        }

        .aisitex-contrast-media {
            border-radius: var(--aisitex-radius);
            overflow: hidden;
            border: 1px solid var(--aisitex-border-light);
        }

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

        /* 平台矩阵区块 */
        .aisitex-matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-bottom: 36px;
        }

        .aisitex-matrix-card {
            background: var(--aisitex-bg);
            border: 1px solid var(--aisitex-border-light);
            padding: 28px;
            border-radius: var(--aisitex-radius);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .aisitex-matrix-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--aisitex-secondary);
            margin-bottom: 12px;
        }

        .aisitex-matrix-req {
            font-size: 14px;
            color: var(--aisitex-text-light);
            margin-bottom: 24px;
            line-height: 1.5;
        }

        .aisitex-matrix-action {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: var(--aisitex-primary);
            transition: color 0.2s;
        }

        .aisitex-matrix-action:hover {
            color: var(--aisitex-primary-hover);
            text-decoration: underline;
        }

        .aisitex-matrix-preview {
            border-radius: var(--aisitex-radius);
            overflow: hidden;
            border: 1px solid var(--aisitex-border-light);
        }

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

        /* 底部信息栏 */
        .aisitex-footer {
            background: var(--aisitex-surface);
            border-top: 1px solid var(--aisitex-border-light);
            padding: 40px 24px;
            margin-top: 60px;
            text-align: center;
            font-size: 14px;
            color: var(--aisitex-text-light);
        }

        .aisitex-footer-links {
            display: flex;
            justify-content: center;
            gap: 24px;
            margin-bottom: 16px;
        }

        .aisitex-footer-links a {
            color: var(--aisitex-text);
            transition: color 0.2s;
        }

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

        /* 响应式断点控制 */
        @media (max-width: 1024px) {
            .aisitex-hero {
                grid-template-columns: 1fr;
                padding: 36px;
            }
            .aisitex-matrix-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .aisitex-nav-menu {
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: var(--aisitex-surface);
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 16px;
                border-bottom: 1px solid var(--aisitex-border-light);
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                transform: translateY(-100%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.3s ease, opacity 0.3s ease;
                z-index: 98;
            }
            .aisitex-nav-menu.active {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .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(7px, -6px);
            }
            .aisitex-nav-overlay.active {
                display: block;
            }
            .aisitex-contrast-grid {
                grid-template-columns: 1fr;
            }
            .aisitex-hero {
                padding: 24px;
            }
            .aisitex-section {
                padding: 24px;
            }
        }

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: #344054;
}

.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-color: #FFFFFF;
            border-bottom: 1px solid #EAECF0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        }

.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;
            gap: 12px;
            font-weight: 700;
            font-size: 20px;
            color: #101828;
        }

.aisitex-header .aisitex-brand-logo{
            width: 36px;
            height: 36px;
            object-fit: contain;
        }

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

.aisitex-header .aisitex-nav-link{
            font-size: 15px;
            font-weight: 500;
            color: #344054;
            transition: color 0.2s;
            padding: 8px 0;
            position: relative;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #0052D9;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #0052D9;
        }

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

.aisitex-header .aisitex-nav-overlay{
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.4);
            z-index: 99;
        }

@media (max-width: 768px){.aisitex-header .aisitex-nav-menu{
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 16px;
                border-bottom: 1px solid #EAECF0;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                transform: translateY(-100%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.3s ease, opacity 0.3s ease;
                z-index: 98;
            }

.aisitex-header .aisitex-nav-menu.active{
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

.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(7px, -6px);
            }

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

.aisitex-footer {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: #344054;
}

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

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

.aisitex-footer{
            background: #FFFFFF;
            border-top: 1px solid #EAECF0;
            padding: 40px 24px;
            margin-top: 60px;
            text-align: center;
            font-size: 14px;
            color: #667085;
        }

.aisitex-footer .aisitex-footer-links{
            display: flex;
            justify-content: center;
            gap: 24px;
            margin-bottom: 16px;
        }

.aisitex-footer .aisitex-footer-links a{
            color: #344054;
            transition: color 0.2s;
        }

.aisitex-footer .aisitex-footer-links a:hover{
            color: #0052D9;
        }