:root:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  --aisitex-primary: #0052D9;
  --aisitex-primary-hover: #003FB3;
  --aisitex-secondary: #101828;
  --aisitex-bg: #F4F6F8;
  --aisitex-surface: #FFFFFF;
  --aisitex-text: #344054;
  --aisitex-text-light: #667085;
  --aisitex-radius: 4px;
  --aisitex-shadow: 0 4px 20px rgba(16, 24, 40, 0.05);
}
*: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, "Microsoft YaHei", sans-serif;
  background-color: var(--aisitex-bg);
  color: var(--aisitex-text);
  line-height: 1.6;
}
/* 导航样式复用首页 */
/* 正文区域样式 */
.aisitex-help-main:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}
/* 首屏：严谨克制的产品顾问风格，左窄右宽舞台留白 */
.aisitex-help-hero:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 48px;
  align-items: center;
  background: var(--aisitex-surface);
  border: 1px solid #EAECF0;
  border-radius: var(--aisitex-radius);
  padding: 48px;
  margin-bottom: 48px;
  box-shadow: var(--aisitex-shadow);
}
.aisitex-hero-content:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.aisitex-badge-tag:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: inline-block;
  background: #EFF8FF;
  color: var(--aisitex-primary);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  width: fit-content;
}
.aisitex-help-hero h1:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 36px;
  font-weight: 700;
  color: var(--aisitex-secondary);
  line-height: 1.25;
}
.aisitex-help-hero p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  color: var(--aisitex-text-light);
  font-size: 16px;
  line-height: 1.6;
}
.aisitex-hero-action:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: flex;
  gap: 16px;
  margin-top: 8px;
}
.aisitex-btn-primary:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background-color: var(--aisitex-primary);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--aisitex-radius);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: background-color 0.2s, transform 0.1s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.aisitex-btn-primary:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background-color: var(--aisitex-primary-hover);
  transform: translateY(-1px);
}
.aisitex-btn-secondary:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background-color: #F8F9FA;
  color: var(--aisitex-secondary);
  border: 1px solid #D0D5DD;
  padding: 12px 24px;
  border-radius: var(--aisitex-radius);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.aisitex-btn-secondary:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background-color: #EAECF0;
  border-color: #98A2B3;
}
.aisitex-hero-visual:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background: #F8F9FA;
  border-radius: var(--aisitex-radius);
  border: 1px solid #EAECF0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
}
.aisitex-hero-visual img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}
/* 使用前后流程对照区 */
.aisitex-process-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  margin-bottom: 64px;
}
.aisitex-section-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 24px;
  font-weight: 600;
  color: var(--aisitex-secondary);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.aisitex-process-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.aisitex-process-card:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background: var(--aisitex-surface);
  border: 1px solid #EAECF0;
  border-radius: var(--aisitex-radius);
  padding: 28px;
  box-shadow: var(--aisitex-shadow);
  position: relative;
}
.aisitex-process-step:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 12px;
  font-weight: 700;
  color: var(--aisitex-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
  display: block;
}
.aisitex-process-card h3:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 18px;
  font-weight: 600;
  color: var(--aisitex-secondary);
  margin-bottom: 12px;
}
.aisitex-process-card p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  color: var(--aisitex-text-light);
  font-size: 14px;
  line-height: 1.5;
}
/* 常见问题折叠与排查区 */
.aisitex-trouble-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background: var(--aisitex-surface);
  border: 1px solid #EAECF0;
  border-radius: var(--aisitex-radius);
  padding: 40px;
  margin-bottom: 64px;
  box-shadow: var(--aisitex-shadow);
}
.aisitex-faq-list:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}
.aisitex-faq-item:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  border: 1px solid #EAECF0;
  border-radius: var(--aisitex-radius);
  overflow: hidden;
  transition: border-color 0.2s;
}
.aisitex-faq-item:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  border-color: #D0D5DD;
}
.aisitex-faq-question:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  width: 100%;
  text-align: left;
  background: #F8F9FA;
  border: none;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--aisitex-secondary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.aisitex-faq-question:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::after {
  content: "+";
  font-size: 20px;
  color: var(--aisitex-text-light);
  font-weight: 400;
  transition: transform 0.2s;
}
.aisitex-faq-item.active .aisitex-faq-question:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::after {
  transform: rotate(45deg);
}
.aisitex-faq-answer:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: var(--aisitex-text-light);
  font-size: 15px;
  line-height: 1.6;
  background: var(--aisitex-surface);
}
.aisitex-faq-item.active .aisitex-faq-answer:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  padding: 20px 24px;
  max-height: 200px;
  border-top: 1px solid #EAECF0;
}
/* 平台分流矩阵与系统要求区 */
.aisitex-matrix-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.aisitex-matrix-card:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background: var(--aisitex-surface);
  border: 1px solid #EAECF0;
  border-radius: var(--aisitex-radius);
  padding: 36px;
  box-shadow: var(--aisitex-shadow);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.aisitex-matrix-card h3:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 20px;
  font-weight: 600;
  color: var(--aisitex-secondary);
  margin-bottom: 12px;
}
.aisitex-matrix-card p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  color: var(--aisitex-text-light);
  font-size: 14px;
  margin-bottom: 24px;
}
.aisitex-specs-list:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  list-style: none;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.aisitex-specs-list li:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid #F0F2F5;
}
.aisitex-specs-list span:first-child:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  color: var(--aisitex-text-light);
}
.aisitex-specs-list span:last-child:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  color: var(--aisitex-secondary);
  font-weight: 500;
}
/* 页脚样式复用一致 */
.aisitex-footer-content:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
}
/* 响应式断点适配 */
@media (max-width: 992px) {.aisitex-help-hero:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 32px;
  }
.aisitex-process-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
    grid-template-columns: 1fr;
  }
.aisitex-matrix-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
    grid-template-columns: 1fr;
  }}
@media (max-width: 768px) {.aisitex-nav-menu.active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
    transform: translateY(0);
  }
.aisitex-nav-overlay.active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
    display: block;
  }
.aisitex-help-hero h1:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
    font-size: 28px;
  }
.aisitex-hero-action:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
    flex-direction: column;
  }}

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: #344054;
}

.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: #FFFFFF;
            border-bottom: 1px solid #EAECF0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        }

.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;
            font-weight: 700;
            font-size: 20px;
            color: #101828;
        }

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

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

.aisitex-header .aisitex-nav-link{
            font-size: 15px;
            font-weight: 500;
            color: #344054;
            transition: color 0.2s;
            padding: 8px 0;
            position: relative;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #0052D9;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #0052D9;
        }

.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: #101828;
            margin: 5px 0;
            transition: 0.3s;
        }

.aisitex-header .aisitex-nav-overlay{
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.4);
            z-index: 99;
        }

@media (max-width: 768px){.aisitex-header .aisitex-nav-menu{
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 16px;
                border-bottom: 1px solid #EAECF0;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                transform: translateY(-100%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.3s ease, opacity 0.3s ease;
                z-index: 98;
            }

.aisitex-header .aisitex-nav-menu.active{
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

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

.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 Neue", Arial, "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: #344054;
}

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

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

.aisitex-footer{
            background: #FFFFFF;
            border-top: 1px solid #EAECF0;
            padding: 40px 24px;
            margin-top: 60px;
            text-align: center;
            font-size: 14px;
            color: #667085;
        }

.aisitex-footer .aisitex-footer-links{
            display: flex;
            justify-content: center;
            gap: 24px;
            margin-bottom: 16px;
        }

.aisitex-footer .aisitex-footer-links a{
            color: #344054;
            transition: color 0.2s;
        }

.aisitex-footer .aisitex-footer-links a:hover{
            color: #0052D9;
        }