:root:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  --aisitex-bg: #F8F9FA;
  --aisitex-surface: #FFFFFF;
  --aisitex-text-main: #2D3748;
  --aisitex-text-muted: #718096;
  --aisitex-primary: #E53E3E;
  --aisitex-primary-hover: #C53030;
  --aisitex-max-width: 1200px;
  --aisitex-border: #E2E8F0;
}
*: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 *)){
  background-color: var(--aisitex-bg);
  color: var(--aisitex-text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
/* 導航欄組件樣式 (複用首頁風格) */
.aisitex-btn-download:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background-color: var(--aisitex-primary);
  color: #fff;
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  box-shadow: 0 4px 12px rgba(229, 62, 62, 0.2);
  transition: background-color 0.2s ease, transform 0.2s ease;
}
.aisitex-btn-download:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background-color: var(--aisitex-primary-hover);
  transform: translateY(-1px);
}
.aisitex-nav-overlay:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 998;
}
/* 頁面特定樣式：Editorial 現代科技紙張風格 */
.aisitex-tutorial-hero:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  max-width: var(--aisitex-max-width);
  margin: 60px auto 40px;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: center;
}
.aisitex-hero-content:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.aisitex-badge:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: inline-block;
  background-color: rgba(229, 62, 62, 0.1);
  color: var(--aisitex-primary);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
  width: fit-content;
  letter-spacing: 0.5px;
}
.aisitex-hero-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 44px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--aisitex-text-main);
}
.aisitex-hero-desc:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 18px;
  color: var(--aisitex-text-muted);
  line-height: 1.7;
}
.aisitex-hero-media:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--aisitex-border);
}
.aisitex-hero-media img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  width: 100%;
  height: auto;
  display: block;
  transform: translateY(0);
  animation: aisitexFadeIn 0.8s ease-out;
}
@keyframes aisitexFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
/* 章節通用色帶佈局 */
.aisitex-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  padding: 80px 0;
  border-top: 1px solid var(--aisitex-border);
}
.aisitex-section-tinted:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background-color: #FFFFFF;
}
.aisitex-container:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  max-width: var(--aisitex-max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.aisitex-section-header:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  max-width: 700px;
  margin-bottom: 56px;
}
.aisitex-section-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 32px;
  font-weight: 700;
  color: var(--aisitex-text-main);
  margin-bottom: 12px;
  position: relative;
  padding-left: 16px;
}
.aisitex-section-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  background-color: var(--aisitex-primary);
  border-radius: 2px;
}
.aisitex-section-summary:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 16px;
  color: var(--aisitex-text-muted);
}
/* 三步指引步驟樣式 */
.aisitex-steps-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.aisitex-step-card:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background: var(--aisitex-surface);
  border: 1px solid var(--aisitex-border);
  border-radius: 12px;
  padding: 36px 28px;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.aisitex-step-card:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
}
.aisitex-step-number:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 42px;
  font-weight: 700;
  color: rgba(229, 62, 62, 0.15);
  margin-bottom: 16px;
  line-height: 1;
}
.aisitex-step-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 20px;
  font-weight: 600;
  color: var(--aisitex-text-main);
  margin-bottom: 12px;
}
.aisitex-step-desc:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 15px;
  color: var(--aisitex-text-muted);
  line-height: 1.6;
}
/* 場景切片與證據展示區 */
.aisitex-insight-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.aisitex-insight-text h3:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 24px;
  font-weight: 600;
  color: var(--aisitex-text-main);
  margin-bottom: 16px;
}
.aisitex-insight-text p:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 16px;
  color: var(--aisitex-text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}
.aisitex-feature-list:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.aisitex-feature-list li:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--aisitex-text-main);
  font-weight: 500;
}
.aisitex-feature-list li svg:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  color: var(--aisitex-primary);
  flex-shrink: 0;
}
.aisitex-insight-media img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--aisitex-border);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.06);
}
/* FAQ 問答區塊樣式 */
.aisitex-faq-list:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 800px;
}
.aisitex-faq-item:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background: var(--aisitex-surface);
  border: 1px solid var(--aisitex-border);
  border-radius: 8px;
  padding: 24px;
}
.aisitex-faq-question:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 18px;
  font-weight: 600;
  color: var(--aisitex-text-main);
  margin-bottom: 10px;
}
.aisitex-faq-answer:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 15px;
  color: var(--aisitex-text-muted);
  line-height: 1.7;
  padding-top: 10px;
  border-top: 1px solid var(--aisitex-border);
}
/* 底部操作指引CTA */
.aisitex-cta-banner:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background: #1A202C;
  color: #FFFFFF;
  padding: 80px 24px;
  text-align: center;
}
.aisitex-cta-container:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.aisitex-cta-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 36px;
  font-weight: 700;
  line-height: 1.3;
}
.aisitex-cta-desc:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  font-size: 16px;
  color: #A0AEC0;
  line-height: 1.6;
}
.aisitex-btn-primary-large:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background-color: var(--aisitex-primary);
  color: #fff;
  padding: 14px 32px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  box-shadow: 0 4px 16px rgba(229, 62, 62, 0.3);
  transition: background-color 0.2s ease, transform 0.2s ease;
}
.aisitex-btn-primary-large:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  background-color: var(--aisitex-primary-hover);
  transform: translateY(-2px);
}
/* 頁腳樣式 */
.aisitex-footer-copyright:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
  width: 100%;
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid #1F2937;
  color: #6B7280;
  font-size: 13px;
}
/* 響應式適配 */
@media (max-width: 968px) {.aisitex-tutorial-hero:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
    grid-template-columns: 1fr;
    gap: 32px;
    margin: 40px auto;
  }
.aisitex-steps-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
    grid-template-columns: 1fr;
    gap: 20px;
  }
.aisitex-insight-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
    grid-template-columns: 1fr;
    gap: 32px;
  }
.aisitex-hero-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
    font-size: 36px;
  }}
@media (max-width: 768px) {.aisitex-nav-menu.active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
    display: flex;
  }}

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #2D3748;
}

.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{
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(248, 249, 250, 0.92);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #E2E8F0;
        }

.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: #2D3748;
            font-weight: 700;
            font-size: 1.15rem;
        }

.aisitex-header .aisitex-brand img{
            width: 32px;
            height: 32px;
            border-radius: 8px;
            object-fit: contain;
        }

.aisitex-header .aisitex-nav-menu{
            display: flex;
            align-items: center;
            gap: 36px;
        }

.aisitex-header .aisitex-nav-link{
            text-decoration: none;
            color: #718096;
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.2s ease;
            position: relative;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #E53E3E;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: -22px;
            left: 0;
            right: 0;
            height: 2px;
            background-color: #E53E3E;
        }

.aisitex-header .aisitex-nav-actions{
            display: flex;
            align-items: center;
            gap: 16px;
        }

.aisitex-header .aisitex-btn-download{
            background-color: #E53E3E;
            color: #FFFFFF;
            padding: 10px 20px;
            border-radius: 6px;
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 600;
            transition: background-color 0.2s, transform 0.2s;
        }

.aisitex-header .aisitex-btn-download:hover{
            background-color: #C53030;
            transform: translateY(-1px);
        }

.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: #2D3748;
            margin: 5px 0;
            transition: 0.3s;
        }

@media (max-width: 968px){.aisitex-header .aisitex-nav-menu{
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 20px;
                border-bottom: 1px solid #E2E8F0;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                transform: translateY(-120%);
                opacity: 0;
                transition: transform 0.3s ease, opacity 0.3s ease;
                pointer-events: none;
            }

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

.aisitex-header .aisitex-nav-link.active::after{
                display: none;
            }

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

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

.aisitex-header .aisitex-nav-actions .aisitex-btn-download{
                display: none;
            }}

.aisitex-footer {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #2D3748;
}

.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 .aisitex-brand{
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: #2D3748;
            font-weight: 700;
            font-size: 1.15rem;
        }

.aisitex-footer .aisitex-brand img{
            width: 32px;
            height: 32px;
            border-radius: 8px;
            object-fit: contain;
        }

.aisitex-footer{
            background-color: #FFFFFF;
            border-top: 1px solid #E2E8F0;
            padding: 60px 0 40px;
            font-size: 0.9rem;
            color: #718096;
        }

.aisitex-footer .aisitex-footer-container{
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            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{
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 320px;
        }

.aisitex-footer .aisitex-footer-brand .aisitex-brand{
            font-size: 1.2rem;
        }

.aisitex-footer .aisitex-footer-links{
            display: flex;
            gap: 60px;
            flex-wrap: wrap;
        }

.aisitex-footer .aisitex-footer-col{
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

.aisitex-footer .aisitex-footer-col h4{
            color: #2D3748;
            font-size: 0.95rem;
            font-weight: 600;
        }

.aisitex-footer .aisitex-footer-col a{
            color: #718096;
            text-decoration: none;
            transition: color 0.2s;
        }

.aisitex-footer .aisitex-footer-col a:hover{
            color: #E53E3E;
        }

.aisitex-footer .aisitex-footer-bottom{
            border-top: 1px solid #EDF2F7;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }