: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;
            --aisitex-radius: 16px;
        }
*: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;
        }
/* 导航栏复用与壳层样式 */
/* 正文区域专属样式 */
.aisitex-faq-hero:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: linear-gradient(180deg, var(--aisitex-bg-alt) 0%, var(--aisitex-bg) 100%);
            padding: 80px 24px 60px;
            text-align: center;
            border-bottom: 1px solid var(--aisitex-border);
        }
.aisitex-faq-hero-container:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-width: 800px;
            margin: 0 auto;
        }
.aisitex-faq-badge:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: inline-block;
            background: rgba(0, 82, 255, 0.1);
            color: var(--aisitex-primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }
.aisitex-faq-hero h1:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 42px;
            font-weight: 800;
            color: var(--aisitex-text);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
.aisitex-faq-hero p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 18px;
            color: var(--aisitex-text-muted);
            line-height: 1.6;
        }
.aisitex-main-content:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-width: 900px;
            margin: 60px auto;
            padding: 0 24px;
        }
.aisitex-search-box:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            position: relative;
            margin-bottom: 40px;
        }
.aisitex-search-input:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            padding: 18px 24px 18px 54px;
            font-size: 16px;
            border: 2px solid var(--aisitex-border);
            border-radius: 14px;
            outline: none;
            transition: border-color 0.2s, box-shadow 0.2s;
            background: var(--aisitex-bg);
            color: var(--aisitex-text);
        }
.aisitex-search-input:focus:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            border-color: var(--aisitex-primary);
            box-shadow: 0 0 0 4px rgba(0, 82, 255, 0.1);
        }
.aisitex-search-icon:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            position: absolute;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
            width: 20px;
            height: 20px;
            color: var(--aisitex-text-muted);
            pointer-events: none;
        }
.aisitex-faq-section-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--aisitex-text);
            display: flex;
            align-items: center;
            gap: 12px;
        }
.aisitex-faq-accordion:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-bottom: 60px;
        }
.aisitex-faq-item:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: #fff;
            border: 1px solid var(--aisitex-border);
            border-radius: var(--aisitex-radius);
            overflow: hidden;
            transition: border-color 0.2s, box-shadow 0.2s;
        }
.aisitex-faq-item:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            border-color: rgba(0, 82, 255, 0.3);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
        }
.aisitex-faq-question:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            padding: 24px;
            font-size: 18px;
            font-weight: 600;
            color: var(--aisitex-text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }
.aisitex-faq-question:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::after {
            content: "";
            width: 10px;
            height: 10px;
            border-right: 2px solid var(--aisitex-text-muted);
            border-bottom: 2px solid var(--aisitex-text-muted);
            transform: rotate(45deg);
            transition: transform 0.3s;
            margin-left: 12px;
            flex-shrink: 0;
        }
.aisitex-faq-item.active .aisitex-faq-question:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::after {
            transform: rotate(-135deg);
            border-color: var(--aisitex-primary);
        }
.aisitex-faq-answer:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            padding: 0 24px 24px;
            color: var(--aisitex-text-muted);
            font-size: 16px;
            line-height: 1.7;
            display: none;
        }
.aisitex-faq-item.active .aisitex-faq-answer:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: block;
        }
.aisitex-support-banner:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: var(--aisitex-bg-alt);
            border-radius: var(--aisitex-radius);
            padding: 40px;
            text-align: center;
            border: 1px solid var(--aisitex-border);
            margin-top: 60px;
        }
.aisitex-support-banner h3:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 12px;
        }
.aisitex-support-banner p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: var(--aisitex-text-muted);
            margin-bottom: 24px;
            font-size: 15px;
        }
.aisitex-btn-primary:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: inline-block;
            background: var(--aisitex-primary);
            color: #fff;
            padding: 14px 32px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            box-shadow: 0 10px 25px rgba(0, 82, 255, 0.25);
            transition: opacity 0.2s, transform 0.2s;
        }
.aisitex-btn-primary:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            opacity: 0.9;
            transform: translateY(-1px);
        }
/* 页脚样式 */
@media (max-width: 768px) {.aisitex-nav-menu.active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                display: flex;
            }
.aisitex-faq-hero h1:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                font-size: 32px;
            }}

.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;
        }