:root:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            --aisitex-primary: #185EA5;
            --aisitex-secondary: #3892EA;
            --aisitex-bg: #F8FAFC;
            --aisitex-text: #1E293B;
            --aisitex-border: #E2E8F0;
            --aisitex-card-bg: #FFFFFF;
        }
*: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 */
/* 独家定制正文样式 */
.aisitex-main-container:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            padding-top: 104px;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
/* 首屏区 */
.aisitex-hero-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            padding: 40px 0 80px;
        }
.aisitex-hero-content h1:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 3.2rem;
            font-weight: 700;
            line-height: 1.2;
            color: var(--aisitex-text);
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }
.aisitex-hero-content h1 span:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: var(--aisitex-primary);
        }
.aisitex-hero-desc:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 1.15rem;
            color: #475569;
            margin-bottom: 32px;
            line-height: 1.7;
        }
.aisitex-step-list:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-bottom: 36px;
        }
.aisitex-step-item:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.95rem;
            font-weight: 600;
            color: #334155;
        }
.aisitex-step-num:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(24, 94, 165, 0.1);
            color: var(--aisitex-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
        }
.aisitex-cta-group:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            gap: 16px;
            align-items: center;
        }
.aisitex-btn-primary:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background-color: var(--aisitex-primary);
            color: #FFFFFF;
            padding: 14px 28px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(24, 94, 165, 0.3);
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
.aisitex-btn-primary:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(24, 94, 165, 0.4);
        }
.aisitex-btn-secondary:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background-color: #FFFFFF;
            color: var(--aisitex-primary);
            border: 1px solid var(--aisitex-border);
            padding: 14px 28px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.2s ease;
        }
.aisitex-btn-secondary:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            border-color: var(--aisitex-primary);
            background-color: rgba(24, 94, 165, 0.02);
        }
.aisitex-hero-image-wrap:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
            border: 1px solid var(--aisitex-border);
            background: #FFFFFF;
        }
.aisitex-hero-image-wrap img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            height: auto;
            display: block;
        }
/* 章节色带区 */
.aisitex-section-ribbon:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: linear-gradient(135deg, rgba(24, 94, 165, 0.04) 0%, rgba(56, 146, 234, 0.08) 100%);
            border-radius: 20px;
            padding: 64px 48px;
            margin: 40px 0 80px;
            border: 1px solid rgba(24, 94, 165, 0.08);
        }
.aisitex-section-header:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            text-align: center;
            max-width: 700px;
            margin: 0 auto 48px;
        }
.aisitex-section-header h2:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 2.4rem;
            color: var(--aisitex-text);
            margin-bottom: 16px;
            font-weight: 700;
            letter-spacing: -0.01em;
        }
.aisitex-section-header p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: #64748B;
            font-size: 1.1rem;
            line-height: 1.6;
        }
/* 功能卡片网格 */
.aisitex-features-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
.aisitex-feature-card:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: var(--aisitex-card-bg);
            border-radius: 12px;
            padding: 32px;
            border: 1px solid var(--aisitex-border);
            transition: all 0.3s ease;
            position: relative;
        }
.aisitex-feature-card:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
            border-color: rgba(24, 94, 165, 0.3);
        }
.aisitex-feature-icon:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: rgba(24, 94, 165, 0.1);
            color: var(--aisitex-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.25rem;
            margin-bottom: 20px;
        }
.aisitex-feature-card h3:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 1.25rem;
            color: var(--aisitex-text);
            margin-bottom: 12px;
            font-weight: 600;
        }
.aisitex-feature-card p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: #64748B;
            font-size: 0.95rem;
            line-height: 1.6;
        }
/* 证据与体验对比模块 */
.aisitex-evidence-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: center;
            margin-bottom: 100px;
        }
.aisitex-evidence-content h3:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 2rem;
            color: var(--aisitex-text);
            margin-bottom: 20px;
            line-height: 1.3;
        }
.aisitex-evidence-content p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: #475569;
            font-size: 1.05rem;
            margin-bottom: 24px;
            line-height: 1.7;
        }
.aisitex-check-list:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
.aisitex-check-list li:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 500;
            color: #334155;
        }
.aisitex-check-list li svg:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 20px;
            height: 20px;
            color: var(--aisitex-primary);
            flex-shrink: 0;
        }
.aisitex-evidence-img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.08);
            border: 1px solid var(--aisitex-border);
            background: #FFFFFF;
        }
.aisitex-evidence-img img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            height: auto;
            display: block;
        }
/* 底部行动召唤 */
.aisitex-bottom-cta:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: linear-gradient(135deg, #185EA5 0%, #3892EA 100%);
            border-radius: 20px;
            padding: 64px 32px;
            text-align: center;
            color: #FFFFFF;
            margin-bottom: 80px;
            box-shadow: 0 20px 40px rgba(24, 94, 165, 0.2);
        }
.aisitex-bottom-cta h2:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 2.5rem;
            margin-bottom: 16px;
            font-weight: 700;
        }
.aisitex-bottom-cta p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 1.15rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto 36px;
            line-height: 1.6;
        }
.aisitex-btn-light:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background-color: #FFFFFF;
            color: var(--aisitex-primary);
            padding: 16px 36px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
            transition: all 0.2s ease;
            display: inline-block;
        }
.aisitex-btn-light:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }
/* 页脚 */
/* 响应式适配 */
@media (max-width: 968px) {.aisitex-nav-menu.active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                left: 0;
            }
.aisitex-nav-overlay.active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                display: block;
            }
.aisitex-hero-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)), .aisitex-evidence-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                grid-template-columns: 1fr;
                gap: 40px;
            }
.aisitex-hero-content h1:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                font-size: 2.5rem;
            }
.aisitex-features-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                grid-template-columns: 1fr;
            }
.aisitex-section-ribbon:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                padding: 40px 24px;
            }}

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #1E293B;
}

.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;
        }

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

.aisitex-header .aisitex-brand{
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            font-size: 22px;
            color: #185EA5;
        }

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

.aisitex-header .aisitex-nav-menu{
            display: flex;
            align-items: center;
            gap: 20px;
        }

.aisitex-header .aisitex-nav-link{
            font-size: 14px;
            font-weight: 500;
            color: #64748B;
            transition: color 0.2s;
            padding: 8px 0;
            position: relative;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #185EA5;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background-color: #185EA5;
            border-radius: 2px;
        }

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

.aisitex-header .aisitex-nav-overlay{
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.4);
            z-index: 998;
        }

@media (max-width: 768px){.aisitex-header .aisitex-nav-menu{
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                padding: 24px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                border-bottom: 1px solid #E2E8F0;
                z-index: 999;
                max-height: calc(100vh - 72px);
                overflow-y: auto;
            }

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

.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: #1E293B;
}

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

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

.aisitex-footer{
            background-color: #0F172A;
            color: #94A3B8;
            padding: 60px 0 30px;
        }

.aisitex-footer .aisitex-footer-content{
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

.aisitex-footer .aisitex-footer-nav{
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            justify-content: center;
        }

.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-bottom{
            text-align: center;
            font-size: 13px;
            border-top: 1px solid #1E293B;
            padding-top: 30px;
        }