:root:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            --aisitex-primary: #0052FF;
            --aisitex-secondary: #00D26A;
            --aisitex-bg: #FFFFFF;
            --aisitex-bg-alt: #F6F8FC;
            --aisitex-text: #0A0D14;
            --aisitex-text-muted: #525B75;
            --aisitex-border: #E2E8F0;
        }
*: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;
            color: var(--aisitex-text);
            background-color: var(--aisitex-bg);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
/* 头部导航样式复用 */
/* 正文样式 */
.aisitex-main:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: block;
        }
.aisitex-container:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
/* 1. 下载首屏 Hero 样式 */
.aisitex-download-hero:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: linear-gradient(135deg, var(--aisitex-bg-alt) 0%, #FFFFFF 100%);
            padding: 80px 0 60px;
            border-bottom: 1px solid var(--aisitex-border);
        }
.aisitex-hero-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: center;
        }
.aisitex-hero-badge:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 82, 255, 0.08);
            color: var(--aisitex-primary);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 24px;
        }
.aisitex-hero-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--aisitex-text);
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }
.aisitex-hero-summary:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 18px;
            color: var(--aisitex-text-muted);
            margin-bottom: 36px;
            line-height: 1.7;
        }
.aisitex-hero-actions:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
.aisitex-btn-primary:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: var(--aisitex-primary);
            color: #fff;
            padding: 14px 28px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            box-shadow: 0 10px 25px rgba(0, 82, 255, 0.25);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: transform 0.2s, opacity 0.2s;
            border: none;
            cursor: pointer;
        }
.aisitex-btn-primary:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            transform: translateY(-2px);
            opacity: 0.95;
        }
.aisitex-hero-image-wrap:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(10, 13, 20, 0.08);
            border: 1px solid var(--aisitex-border);
            background: #fff;
        }
.aisitex-hero-image-wrap img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            height: auto;
            display: block;
        }
/* 2. 平台下载列表样式 */
.aisitex-platform-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            padding: 100px 0;
            background: #fff;
        }
.aisitex-section-header:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            text-align: center;
            max-width: 700px;
            margin: 0 auto 60px;
        }
.aisitex-section-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 34px;
            font-weight: 700;
            color: var(--aisitex-text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
.aisitex-section-desc:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 16px;
            color: var(--aisitex-text-muted);
        }
.aisitex-platform-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
.aisitex-platform-card:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: var(--aisitex-bg-alt);
            border: 1px solid var(--aisitex-border);
            border-radius: 20px;
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: transform 0.2s, box-shadow 0.2s;
        }
.aisitex-platform-card:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            transform: translateY(-4px);
            box-shadow: 0 16px 32px rgba(10, 13, 20, 0.06);
            border-color: rgba(0, 82, 255, 0.3);
        }
.aisitex-platform-top:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 24px;
        }
.aisitex-platform-info h3:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 22px;
            font-weight: 700;
            color: var(--aisitex-text);
            margin-bottom: 8px;
        }
.aisitex-platform-version:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: inline-block;
            font-size: 13px;
            color: var(--aisitex-primary);
            background: rgba(0, 82, 255, 0.08);
            padding: 4px 10px;
            border-radius: 6px;
            font-weight: 600;
        }
.aisitex-platform-desc:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 15px;
            color: var(--aisitex-text-muted);
            margin-bottom: 28px;
            line-height: 1.6;
        }
.aisitex-platform-preview:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            margin-bottom: 24px;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--aisitex-border);
            background: #fff;
            max-height: 220px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
.aisitex-platform-preview img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            height: auto;
            object-fit: cover;
            display: block;
        }
.aisitex-btn-download:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: #fff;
            color: var(--aisitex-primary);
            border: 2px solid var(--aisitex-primary);
            padding: 12px 24px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            text-align: center;
            transition: all 0.2s;
            display: block;
            cursor: pointer;
        }
.aisitex-btn-download:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: var(--aisitex-primary);
            color: #fff;
        }
/* 3. 安全承诺区块 */
.aisitex-security-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            padding: 80px 0 100px;
            background: var(--aisitex-bg-alt);
            border-top: 1px solid var(--aisitex-border);
        }
.aisitex-security-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 60px;
            align-items: center;
        }
.aisitex-security-img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            border-radius: 20px;
            overflow: hidden;
            background: #fff;
            border: 1px solid var(--aisitex-border);
            padding: 20px;
            box-shadow: 0 15px 30px rgba(10, 13, 20, 0.05);
        }
.aisitex-security-img img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            height: auto;
            display: block;
        }
.aisitex-security-content h2:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 32px;
            font-weight: 700;
            color: var(--aisitex-text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
.aisitex-security-summary:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 16px;
            color: var(--aisitex-text-muted);
            margin-bottom: 32px;
            line-height: 1.7;
        }
.aisitex-security-features:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
.aisitex-security-item:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
.aisitex-security-icon:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 36px;
            height: 36px;
            background: rgba(0, 210, 106, 0.12);
            color: var(--aisitex-secondary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 18px;
        }
.aisitex-security-text h4:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 17px;
            font-weight: 600;
            color: var(--aisitex-text);
            margin-bottom: 6px;
        }
.aisitex-security-text p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 14px;
            color: var(--aisitex-text-muted);
            line-height: 1.6;
        }
/* 页脚样式 */
.aisitex-footer-container:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 24px;
        }
.aisitex-footer-copy:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            text-align: center;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: #64748B;
        }
/* 移动端响应式 */
@media (max-width: 992px) {.aisitex-hero-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)), .aisitex-security-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                grid-template-columns: 1fr;
                gap: 40px;
            }
.aisitex-platform-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                grid-template-columns: 1fr;
            }
.aisitex-hero-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                font-size: 36px;
            }}
@media (max-width: 768px) {.aisitex-nav-menu.active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background: #fff;
                padding: 24px;
                box-shadow: 0 10px 25px rgba(0,0,0,0.1);
                border-bottom: 1px solid var(--aisitex-border);
                align-items: flex-start;
                gap: 16px;
            }
.aisitex-hero-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                font-size: 30px;
            }
.aisitex-platform-card:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                padding: 24px;
            }}

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #0A0D14;
}

.aisitex-header, .aisitex-header *, .aisitex-header::before, .aisitex-header *::before, .aisitex-header::after, .aisitex-header *::after{
            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(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #E2E8F0;
        }

.aisitex-header .aisitex-nav-container{
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

.aisitex-header .aisitex-brand{
            font-size: 22px;
            font-weight: 800;
            color: #0052FF;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

.aisitex-header .aisitex-brand span{
            color: #0A0D14;
        }

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

.aisitex-header .aisitex-nav-link{
            font-size: 15px;
            font-weight: 500;
            color: #525B75;
            transition: color 0.2s ease;
        }

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

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

.aisitex-header .aisitex-btn-header{
            background: #0052FF;
            color: #fff;
            padding: 10px 20px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            transition: opacity 0.2s;
        }

.aisitex-header .aisitex-btn-header:hover{
            opacity: 0.9;
        }

.aisitex-header .aisitex-menu-toggle{
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            width: 32px;
            height: 32px;
            position: relative;
        }

.aisitex-header .aisitex-menu-toggle span{
            display: block;
            width: 24px;
            height: 2px;
            background: #0A0D14;
            position: absolute;
            left: 4px;
            transition: 0.3s;
        }

.aisitex-header .aisitex-menu-toggle span:nth-child(1){ top: 9px; }

.aisitex-header .aisitex-menu-toggle span:nth-child(2){ top: 15px; }

.aisitex-header .aisitex-menu-toggle span:nth-child(3){ top: 21px; }

@media (max-width: 960px){.aisitex-header .aisitex-nav-menu{
                display: none;
                position: fixed;
                top: 76px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 24px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                border-bottom: 1px solid #E2E8F0;
                gap: 20px;
                align-items: flex-start;
            }

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

.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: #0A0D14;
}

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

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

.aisitex-footer .aisitex-brand{
            font-size: 22px;
            font-weight: 800;
            color: #0052FF;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

.aisitex-footer .aisitex-brand span{
            color: #0A0D14;
        }

.aisitex-footer{
            background: #0A0D14;
            color: #94A3B8;
            padding: 60px 24px 40px;
        }

.aisitex-footer .aisitex-footer-inner{
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

.aisitex-footer .aisitex-footer-top{
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            flex-wrap: wrap;
            gap: 30px;
        }

.aisitex-footer .aisitex-footer-brand .aisitex-brand{
            color: #fff;
            margin-bottom: 12px;
        }

.aisitex-footer .aisitex-footer-brand p{
            font-size: 14px;
            max-width: 320px;
        }

.aisitex-footer .aisitex-footer-links{
            display: flex;
            gap: 60px;
            flex-wrap: wrap;
        }

.aisitex-footer .aisitex-footer-col h4{
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }

.aisitex-footer .aisitex-footer-col ul{
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

.aisitex-footer .aisitex-footer-col a{
            font-size: 14px;
            transition: color 0.2s;
        }

.aisitex-footer .aisitex-footer-col a:hover{
            color: #fff;
        }

.aisitex-footer .aisitex-footer-bottom{
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 13px;
        }