:root:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            --aisitex-primary: #25D366;
            --aisitex-secondary: #075E54;
            --aisitex-bg: #F8F9FA;
            --aisitex-text: #111827;
            --aisitex-text-light: #4B5563;
            --aisitex-border: #E5E7EB;
            --aisitex-container-width: 1200px;
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }
*:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
body:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-family: var(--font-main);
            background-color: var(--aisitex-bg);
            color: var(--aisitex-text);
            line-height: 1.6;
            overflow-x: hidden;
        }
/* 导航复用与微调 */
/* 杂志式首屏 */
.aisitex-hero:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            padding-top: 160px;
            padding-bottom: 80px;
            max-width: var(--aisitex-container-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 4fr 6fr;
            gap: 60px;
            align-items: flex-start;
        }
.aisitex-hero-label:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.1em;
            color: var(--aisitex-primary);
            margin-bottom: 24px;
            display: block;
        }
.aisitex-hero-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 56px;
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 32px;
            letter-spacing: -0.02em;
        }
.aisitex-hero-content:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            padding-top: 20px;
        }
.aisitex-hero-summary:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 20px;
            color: var(--aisitex-text-light);
            max-width: 500px;
            margin-bottom: 40px;
        }
.aisitex-hero-image-wrapper:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(0,0,0,0.08);
        }
.aisitex-hero-image:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            display: block;
            transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
        }
.aisitex-hero-image:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            transform: scale(1.02);
        }
/* 核心指南区块 */
.aisitex-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            padding: 100px 20px;
            max-width: var(--aisitex-container-width);
            margin: 0 auto;
        }
.aisitex-section-header:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            margin-bottom: 80px;
            border-top: 1px solid var(--aisitex-border);
            padding-top: 40px;
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
        }
.aisitex-section-number:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 16px;
            font-weight: 600;
            color: var(--aisitex-text-light);
        }
.aisitex-section-h2:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 32px;
            font-weight: 700;
        }
/* 问答条目排版 */
.aisitex-guide-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 80px;
            align-items: center;
        }
.aisitex-qa-list:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            flex-direction: column;
            gap: 48px;
        }
.aisitex-qa-item:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            position: relative;
            padding-left: 0;
        }
.aisitex-qa-question:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
.aisitex-qa-question:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::before {
            content: "Q.";
            color: var(--aisitex-primary);
            font-style: italic;
        }
.aisitex-qa-answer:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 16px;
            color: var(--aisitex-text-light);
            line-height: 1.8;
            padding-left: 36px;
            border-left: 2px solid var(--aisitex-primary);
        }
.aisitex-feature-visual:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: #fff;
            padding: 40px;
            border-radius: 24px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.03);
        }
.aisitex-feature-visual img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            height: auto;
            border-radius: 12px;
        }
/* 场景切片区块 */
.aisitex-scene-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: var(--aisitex-secondary);
            color: #fff;
            padding: 120px 20px;
            margin-top: 80px;
        }
.aisitex-scene-container:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-width: var(--aisitex-container-width);
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
.aisitex-scene-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 40px;
            font-weight: 800;
            margin-bottom: 24px;
        }
.aisitex-scene-desc:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 18px;
            opacity: 0.8;
            max-width: 700px;
            margin-bottom: 60px;
        }
.aisitex-cta-btn:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: inline-flex;
            align-items: center;
            padding: 16px 40px;
            background-color: var(--aisitex-primary);
            color: #fff;
            text-decoration: none;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s;
            box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
        }
.aisitex-cta-btn:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
        }
/* 页脚 */
/* 响应式适配 */
@media (max-width: 1024px) {.aisitex-hero:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                grid-template-columns: 1fr;
                gap: 40px;
                padding-top: 120px;
            }
.aisitex-guide-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                grid-template-columns: 1fr;
                gap: 60px;
            }}
@media (max-width: 768px) {.aisitex-nav-menu.active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                display: flex;
            }
.aisitex-hero-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                font-size: 40px;
            }
.aisitex-section-header:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }}

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #111827;
}

.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-color: rgba(248, 249, 250, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #E5E7EB;
        }

.aisitex-header .aisitex-nav-container{
            max-width: 1200px;
            margin: 0 auto;
            padding: 1rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

.aisitex-header .aisitex-brand{
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: #075E54;
        }

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

.aisitex-header .aisitex-nav-menu{
            display: flex;
            align-items: center;
            gap: 2rem;
        }

.aisitex-header .aisitex-nav-link{
            font-size: 0.95rem;
            font-weight: 500;
            color: #4B5563;
            transition: color 0.2s ease;
            position: relative;
            padding: 0.25rem 0;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #075E54;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #25D366;
        }

.aisitex-header .aisitex-menu-toggle{
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
        }

.aisitex-header .aisitex-menu-toggle span{
            display: block;
            width: 24px;
            height: 2px;
            background-color: #111827;
            margin: 5px 0;
            transition: 0.3s;
        }

@media (max-width: 968px){.aisitex-header .aisitex-nav-menu{
                display: none;
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                padding: 2rem;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                border-bottom: 1px solid #E5E7EB;
            }

.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: #111827;
}

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

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

.aisitex-footer{
            background-color: #FFFFFF;
            border-top: 1px solid #E5E7EB;
            padding: 3rem 1.5rem;
            margin-top: 5rem;
        }

.aisitex-footer .aisitex-footer-container{
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

.aisitex-footer .aisitex-footer-nav{
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }

.aisitex-footer .aisitex-footer-nav a{
            color: #4B5563;
            font-size: 0.9rem;
            transition: color 0.2s;
        }

.aisitex-footer .aisitex-footer-nav a:hover{
            color: #075E54;
        }

.aisitex-footer .aisitex-footer-bottom{
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1.5rem;
            border-top: 1px solid #E5E7EB;
            color: #4B5563;
            font-size: 0.85rem;
        }