:root:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            --aisitex-bg: #0e1621;
            --aisitex-secondary: #17212b;
            --aisitex-primary: #2481cc;
            --aisitex-primary-hover: #1e6fae;
            --aisitex-text: #f5f5f5;
            --aisitex-text-muted: #8696a7;
            --aisitex-card-bg: #18222d;
            --aisitex-border: rgba(255, 255, 255, 0.08);
        }
*: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, Arial, sans-serif;
            background-color: var(--aisitex-bg);
            color: var(--aisitex-text);
            line-height: 1.6;
            overflow-x: hidden;
        }
/* 导航栏复用结构与样式 */
/* 正文区域样式 */
.aisitex-main:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            padding-top: 72px;
        }
/* 首屏信息带与舞台 */
.aisitex-guide-hero:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            position: relative;
            padding: 80px 24px 60px;
            max-width: 1200px;
            margin: 0 auto;
        }
.aisitex-info-badge:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(36, 129, 204, 0.12);
            border: 1px solid rgba(36, 129, 204, 0.3);
            border-radius: 20px;
            color: var(--aisitex-primary);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
.aisitex-guide-hero h1:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: clamp(2.2rem, 4vw, 3.5rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            color: #fff;
            max-width: 800px;
        }
.aisitex-guide-hero p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 1.15rem;
            color: var(--aisitex-text-muted);
            max-width: 640px;
            margin-bottom: 40px;
        }
/* 状态对照舞台区 */
.aisitex-compare-stage:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            background: var(--aisitex-secondary);
            border: 1px solid var(--aisitex-border);
            border-radius: 24px;
            padding: 48px;
            margin-bottom: 80px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
        }
.aisitex-compare-col h3:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 1.25rem;
            margin-bottom: 16px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }
.aisitex-compare-col p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: var(--aisitex-text-muted);
            margin-bottom: 24px;
            font-size: 0.95rem;
        }
.aisitex-compare-box:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: var(--aisitex-card-bg);
            border-radius: 12px;
            padding: 20px;
            border: 1px solid var(--aisitex-border);
        }
.aisitex-compare-box ul:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
.aisitex-compare-box li:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--aisitex-text);
        }
/* 三步错位卡片区块 */
.aisitex-steps-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-width: 1200px;
            margin: 0 auto 100px;
            padding: 0 24px;
        }
.aisitex-section-header:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            margin-bottom: 48px;
        }
.aisitex-section-header h2:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
.aisitex-section-header p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: var(--aisitex-text-muted);
            font-size: 1rem;
        }
.aisitex-steps-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
.aisitex-step-card:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: var(--aisitex-secondary);
            border: 1px solid var(--aisitex-border);
            border-radius: 20px;
            padding: 36px 30px;
            position: relative;
            transition: transform 0.3s ease, border-color 0.3s ease;
        }
.aisitex-step-card:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            transform: translateY(-6px);
            border-color: var(--aisitex-primary);
        }
.aisitex-step-num:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 3.5rem;
            font-weight: 900;
            color: rgba(36, 129, 204, 0.15);
            line-height: 1;
            margin-bottom: 16px;
            display: block;
        }
.aisitex-step-card h3:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 1.25rem;
            color: #fff;
            margin-bottom: 12px;
        }
.aisitex-step-card p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: var(--aisitex-text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }
/* 场景视觉与功能导览区 */
.aisitex-guide-showcase:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-width: 1200px;
            margin: 0 auto 100px;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
.aisitex-showcase-content h2:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }
.aisitex-showcase-content p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: var(--aisitex-text-muted);
            margin-bottom: 24px;
            line-height: 1.7;
        }
.aisitex-showcase-list:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
.aisitex-showcase-item:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 1rem;
            color: var(--aisitex-text);
            background: var(--aisitex-secondary);
            padding: 16px 20px;
            border-radius: 12px;
            border: 1px solid var(--aisitex-border);
        }
.aisitex-showcase-item svg:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 20px;
            height: 20px;
            fill: var(--aisitex-primary);
            flex-shrink: 0;
        }
.aisitex-showcase-img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0,0,0,0.5);
            border: 1px solid var(--aisitex-border);
            background: var(--aisitex-secondary);
        }
.aisitex-showcase-img img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            height: auto;
            display: block;
        }
/* 底部行动召唤区 */
.aisitex-guide-cta:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-width: 1200px;
            margin: 0 auto 120px;
            padding: 0 24px;
        }
.aisitex-cta-box:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: radial-gradient(circle at center, rgba(36,129,204,0.18) 0%, rgba(23,33,43,1) 70%);
            border: 1px solid rgba(36, 129, 204, 0.3);
            border-radius: 24px;
            padding: 60px 40px;
            text-align: center;
            box-shadow: 0 20px 50px rgba(0,0,0,0.6);
        }
.aisitex-cta-box h2:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 2.2rem;
            color: #fff;
            margin-bottom: 16px;
        }
.aisitex-cta-box p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: var(--aisitex-text-muted);
            max-width: 540px;
            margin: 0 auto 32px;
            font-size: 1.05rem;
        }
.aisitex-btn:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            background-color: var(--aisitex-primary);
            color: #fff;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            box-shadow: 0 4px 14px rgba(36, 129, 204, 0.35);
            transition: background-color 0.2s, transform 0.2s;
        }
.aisitex-btn:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background-color: var(--aisitex-primary-hover);
            transform: translateY(-2px);
        }
/* 页脚 */
/* 响应式断点适配 */
@media (max-width: 960px) {.aisitex-compare-stage:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)), .aisitex-steps-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)), .aisitex-guide-showcase: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 *)){
                left: 0;
            }
.aisitex-nav-overlay.active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                display: block;
            }
.aisitex-compare-stage:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                padding: 24px;
            }}

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #f5f5f5;
}

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

.aisitex-header{
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(14, 22, 33, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #2b3847;
        }

.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;
            text-decoration: none;
            color: #f5f5f5;
            font-weight: 700;
            font-size: 18px;
        }

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

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

.aisitex-header .aisitex-nav-link{
            text-decoration: none;
            color: #8696a7;
            font-weight: 500;
            font-size: 15px;
            transition: color 0.2s ease;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #2481cc;
        }

.aisitex-header .aisitex-menu-toggle{
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            flex-direction: column;
            gap: 6px;
            padding: 4px;
        }

.aisitex-header .aisitex-menu-toggle span{
            display: block;
            width: 24px;
            height: 2px;
            background-color: #f5f5f5;
            transition: 0.3s;
        }

.aisitex-header .aisitex-nav-overlay{
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            z-index: 998;
        }

@media (max-width: 968px){.aisitex-header .aisitex-nav-menu{
                position: fixed;
                top: 72px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 72px);
                background-color: #0e1621;
                flex-direction: column;
                justify-content: center;
                gap: 24px;
                transition: 0.3s ease;
                border-top: 1px solid #2b3847;
            }

.aisitex-header .aisitex-nav-menu.active{
                left: 0;
            }

.aisitex-header .aisitex-nav-link{
                font-size: 18px;
            }

.aisitex-header .aisitex-menu-toggle{
                display: flex;
            }

.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, Arial, sans-serif;
    line-height: 1.6;
    color: #f5f5f5;
}

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

.aisitex-footer .aisitex-main{
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

.aisitex-footer{
            background-color: #17212b;
            border-top: 1px solid #2b3847;
            padding: 40px 0;
            margin-top: 80px;
            text-align: center;
            color: #8696a7;
            font-size: 14px;
        }

.aisitex-footer p{
            margin-top: 8px;
        }