:root:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            --aisitex-primary: #00A1FF;
            --aisitex-primary-hover: #0088EB;
            --aisitex-secondary: #10B981;
            --aisitex-bg: #F8FAFC;
            --aisitex-text: #0F172A;
            --aisitex-text-muted: #64748B;
        }
*:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
body:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            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;
        }
/* 共享头部样式复用 */
/* 主体布局 */
main:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            padding-top: 72px;
        }
.aisitex-container:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
/* 下载 Hero 舞台 */
.aisitex-download-hero:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            padding: 60px 0 80px;
            background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
            border-bottom: 1px solid #E2E8F0;
            position: relative;
            overflow: hidden;
        }
.aisitex-hero-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
.aisitex-hero-content h1:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--aisitex-text);
            margin-bottom: 16px;
        }
.aisitex-hero-content p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 18px;
            color: var(--aisitex-text-muted);
            margin-bottom: 32px;
        }
.aisitex-hero-badge:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: inline-block;
            background: rgba(0, 161, 255, 0.1);
            color: var(--aisitex-primary);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 16px;
        }
.aisitex-hero-visual:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            position: relative;
        }
.aisitex-hero-visual img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            height: auto;
            border-radius: 20px;
            box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.15);
        }
/* 平台矩阵卡片区 */
.aisitex-platforms-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            padding: 80px 0;
        }
.aisitex-section-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }
.aisitex-section-title h2:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 32px;
            font-weight: 700;
            color: var(--aisitex-text);
            margin-bottom: 12px;
        }
.aisitex-section-title p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 16px;
            color: var(--aisitex-text-muted);
        }
.aisitex-platforms-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
.aisitex-platform-card:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: white;
            border-radius: 20px;
            padding: 36px 28px;
            box-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.05);
            border: 1px solid #E2E8F0;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: transform 0.3s, box-shadow 0.3s;
        }
.aisitex-platform-card:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            transform: translateY(-6px);
            box-shadow: 0 20px 40px -10px rgba(0, 161, 255, 0.12);
            border-color: rgba(0, 161, 255, 0.3);
        }
.aisitex-platform-header:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            margin-bottom: 24px;
        }
.aisitex-platform-tag:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            color: var(--aisitex-primary);
            background: rgba(0, 161, 255, 0.08);
            padding: 4px 10px;
            border-radius: 6px;
            display: inline-block;
            margin-bottom: 12px;
        }
.aisitex-platform-card h3:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 24px;
            font-weight: 700;
            color: var(--aisitex-text);
            margin-bottom: 8px;
        }
.aisitex-platform-card p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 15px;
            color: var(--aisitex-text-muted);
            line-height: 1.5;
        }
.aisitex-download-btn:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: block;
            width: 100%;
            background-color: var(--aisitex-primary);
            color: white;
            text-align: center;
            padding: 14px 24px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            box-shadow: 0 8px 20px rgba(0, 161, 255, 0.25);
            transition: background-color 0.2s, transform 0.2s;
        }
.aisitex-download-btn:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background-color: var(--aisitex-primary-hover);
            transform: translateY(-2px);
        }
/* 亮点支撑带 */
.aisitex-features-strip:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: #FFFFFF;
            padding: 60px 0;
            border-top: 1px solid #E2E8F0;
            border-bottom: 1px solid #E2E8F0;
        }
.aisitex-features-row:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            text-align: center;
        }
.aisitex-feature-item h4:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 18px;
            font-weight: 700;
            color: var(--aisitex-text);
            margin-bottom: 8px;
        }
.aisitex-feature-item p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 14px;
            color: var(--aisitex-text-muted);
        }
/* 页脚样式 */
.aisitex-footer-content:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 30px;
        }
.aisitex-copyright:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            text-align: center;
            color: #64748B;
            font-size: 13px;
        }
/* 响应式断点 */
@media (max-width: 968px) {.aisitex-hero-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                grid-template-columns: 1fr;
                text-align: center;
            }
.aisitex-hero-content:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                order: 2;
            }
.aisitex-hero-visual:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                order: 1;
            }
.aisitex-platforms-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)), .aisitex-features-row:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                grid-template-columns: 1fr;
            }
.aisitex-nav-menu.active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                clip-path: circle(150% at top right);
                pointer-events: all;
            }}

.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: 100;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            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;
            gap: 12px;
            font-weight: 700;
            font-size: 20px;
            color: #0F172A;
        }

.aisitex-header .aisitex-brand-logo{
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #00A1FF, #00C6FF);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 18px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(0, 161, 255, 0.25);
        }

.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;
            position: relative;
            padding: 8px 0;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #00A1FF;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background-color: #00A1FF;
            border-radius: 2px;
        }

.aisitex-header .aisitex-nav-cta{
            background-color: #00A1FF;
            color: white;
            padding: 10px 20px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            transition: background-color 0.2s, transform 0.1s;
            box-shadow: 0 4px 12px rgba(0, 161, 255, 0.2);
        }

.aisitex-header .aisitex-nav-cta:hover{
            background-color: #0088EB;
            transform: translateY(-1px);
        }

.aisitex-header .aisitex-menu-toggle{
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            width: 30px;
            height: 30px;
            position: relative;
        }

.aisitex-header .aisitex-menu-toggle span{
            display: block;
            width: 24px;
            height: 2px;
            background: #0F172A;
            position: absolute;
            left: 3px;
            transition: 0.3s;
        }

.aisitex-header .aisitex-menu-toggle span:nth-child(1){ top: 8px; }

.aisitex-header .aisitex-menu-toggle span:nth-child(2){ top: 14px; }

.aisitex-header .aisitex-menu-toggle span:nth-child(3){ top: 20px; }

@media (max-width: 968px){.aisitex-header .aisitex-nav-menu{
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                padding: 30px;
                gap: 20px;
                box-shadow: 0 20px 20px rgba(0,0,0,0.05);
                border-bottom: 1px solid #E2E8F0;
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 98;
            }

.aisitex-header .aisitex-nav-menu.active{
                transform: translateY(0);
            }

.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: #0F172A;
}

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

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

.aisitex-footer .aisitex-brand-logo{
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #00A1FF, #00C6FF);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 18px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(0, 161, 255, 0.25);
        }

.aisitex-footer{
            background-color: #0F172A;
            color: #94A3B8;
            padding: 60px 24px 40px;
            font-size: 14px;
        }

.aisitex-footer .aisitex-footer-container{
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

.aisitex-footer .aisitex-footer-top{
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid #1E293B;
            padding-bottom: 30px;
        }

.aisitex-footer .aisitex-footer-brand{
            color: white;
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

.aisitex-footer .aisitex-footer-links a{
            color: #94A3B8;
            transition: color 0.2s;
        }

.aisitex-footer .aisitex-footer-links a:hover{
            color: white;
        }

.aisitex-footer .aisitex-footer-bottom{
            text-align: center;
            color: #64748B;
            font-size: 13px;
        }

@media (max-width: 968px){.aisitex-footer .aisitex-footer-top{
                flex-direction: column;
                gap: 20px;
                text-align: center;
            }}