:root:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            --aisitex-primary: #FF7139;
            --aisitex-primary-hover: #E05A25;
            --aisitex-secondary: #0C0C0D;
            --aisitex-bg: #FAFAFC;
            --aisitex-text: #202023;
            --aisitex-text-muted: #62626A;
            --aisitex-max-width: 1200px;
            --aisitex-border-color: #E2E2E8;
            --aisitex-card-bg: #FFFFFF;
        }
*:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)),  *:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::before,  *:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::after {
            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;
        }
/* 复用首页导航栏风格样式 */
/* 页面专属正文样式 */
.aisitex-support-hero:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: var(--aisitex-secondary);
            color: #FFFFFF;
            padding: 80px 24px 100px;
            position: relative;
            overflow: hidden;
        }
.aisitex-support-hero-container:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 60px;
            align-items: center;
        }
.aisitex-hero-tag:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: inline-block;
            background: rgba(255, 113, 57, 0.15);
            color: var(--aisitex-primary);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 20px;
        }
.aisitex-support-hero h1:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }
.aisitex-support-hero p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: #A0A0AB;
            font-size: 1.125rem;
            line-height: 1.7;
            margin-bottom: 32px;
        }
.aisitex-hero-visual:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
.aisitex-hero-visual img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            height: auto;
            display: block;
        }
/* 常见问题核心区块 */
.aisitex-faq-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-width: var(--aisitex-max-width);
            margin: -60px auto 100px;
            padding: 0 24px;
            position: relative;
            z-index: 10;
        }
.aisitex-faq-card-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }
.aisitex-faq-content-box:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: var(--aisitex-card-bg);
            border-radius: 24px;
            padding: 48px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
            border: 1px solid var(--aisitex-border-color);
        }
.aisitex-section-header:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            margin-bottom: 32px;
        }
.aisitex-section-num:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 0.875rem;
            font-weight: 700;
            color: var(--aisitex-primary);
            letter-spacing: 0.05em;
            margin-bottom: 8px;
            display: block;
        }
.aisitex-section-header h2:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 2rem;
            font-weight: 700;
            color: var(--aisitex-secondary);
            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-accordion:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
.aisitex-accordion-item:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            border: 1px solid var(--aisitex-border-color);
            border-radius: 14px;
            overflow: hidden;
            background: #FFFFFF;
            transition: border-color 0.2s ease;
        }
.aisitex-accordion-item:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            border-color: var(--aisitex-primary);
        }
.aisitex-accordion-header:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            background: none;
            border: none;
            padding: 20px 24px;
            text-align: left;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--aisitex-secondary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
.aisitex-accordion-header:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::after {
            content: "+";
            font-size: 1.25rem;
            color: var(--aisitex-primary);
            font-weight: 400;
            transition: transform 0.2s ease;
        }
.aisitex-accordion-item.active .aisitex-accordion-header:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::after {
            transform: rotate(45deg);
        }
.aisitex-accordion-body:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--aisitex-text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }
.aisitex-accordion-item.active .aisitex-accordion-body:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-height: 200px;
            padding: 0 24px 20px 24px;
        }
.aisitex-faq-media-box:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
.aisitex-media-card:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: var(--aisitex-card-bg);
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
            border: 1px solid var(--aisitex-border-color);
            padding: 24px;
        }
.aisitex-media-card img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            height: auto;
            border-radius: 12px;
            display: block;
            margin-bottom: 16px;
        }
.aisitex-media-card h3:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--aisitex-secondary);
            margin-bottom: 8px;
        }
.aisitex-media-card p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 0.9rem;
            color: var(--aisitex-text-muted);
        }
/* 底部行动引导 */
.aisitex-support-cta:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: var(--aisitex-secondary);
            color: #FFFFFF;
            padding: 80px 24px;
            text-align: center;
            border-radius: 32px;
            max-width: var(--aisitex-max-width);
            margin: 0 auto 100px;
        }
.aisitex-support-cta h2:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 2.25rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
.aisitex-support-cta p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: #A0A0AB;
            font-size: 1.125rem;
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
.aisitex-btn-group:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            gap: 16px;
            justify-content: center;
        }
.aisitex-btn-primary:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background-color: var(--aisitex-primary);
            color: #FFFFFF;
            text-decoration: none;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            box-shadow: 0 8px 24px rgba(255, 113, 57, 0.3);
            transition: background-color 0.2s ease, transform 0.2s ease;
        }
.aisitex-btn-primary:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background-color: var(--aisitex-primary-hover);
            transform: translateY(-2px);
        }
/* 页脚样式 */
.aisitex-footer-copy:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: var(--aisitex-text-muted);
            font-size: 0.9rem;
        }
/* 响应式断点 */
@media (max-width: 968px) {.aisitex-support-hero-container:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                grid-template-columns: 1fr;
                gap: 40px;
                text-align: center;
            }
.aisitex-support-hero h1:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                font-size: 2.25rem;
            }
.aisitex-faq-card-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                grid-template-columns: 1fr;
            }}

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #202023;
}

.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-color: rgba(250, 250, 252, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #E1E1E6;
        }

.aisitex-header .aisitex-header-container{
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

.aisitex-header .aisitex-brand{
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            font-size: 20px;
            color: #0C0C0D;
        }

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

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

.aisitex-header .aisitex-nav-link{
            font-size: 15px;
            font-weight: 500;
            color: #62626A;
            transition: color 0.2s;
            position: relative;
            padding: 4px 0;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #0C0C0D;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #FF7139;
            border-radius: 2px;
        }

.aisitex-header .aisitex-header-cta{
            background-color: #FF7139;
            color: #FFFFFF;
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 14px;
            transition: background-color 0.2s, transform 0.1s;
        }

.aisitex-header .aisitex-header-cta:hover{
            background-color: #E05A25;
        }

.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-color: #0C0C0D;
            margin: 5px 0;
            transition: 0.3s;
        }

@media (max-width: 968px){.aisitex-header .aisitex-nav{
                display: none;
                position: fixed;
                top: 76px;
                left: 0;
                width: 100%;
                background-color: #FFFFFF;
                flex-direction: column;
                padding: 30px;
                box-shadow: 0 20px 30px rgba(0,0,0,0.1);
                border-bottom: 1px solid #E1E1E6;
                gap: 20px;
                z-index: 999;
            }

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

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

.aisitex-header .aisitex-nav-overlay.active{
                display: block;
            }

.aisitex-header .aisitex-header-cta{
                display: none;
            }}

.aisitex-footer {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #202023;
}

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

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

.aisitex-footer{
            background-color: #080809;
            color: #8E8E93;
            padding: 60px 24px 40px;
            border-top: 1px solid #1C1C1E;
        }

.aisitex-footer .aisitex-footer-container{
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
        }

.aisitex-footer .aisitex-footer-links{
            display: flex;
            gap: 24px;
        }

.aisitex-footer .aisitex-footer-links a:hover{
            color: #FFFFFF;
        }