:root {
            --aisitex-primary: #0052D9;
            --aisitex-primary-hover: #0040B0;
            --aisitex-secondary: #1C2128;
            --aisitex-bg: #F7F8FA;
            --aisitex-surface: #FFFFFF;
            --aisitex-text: #24292F;
            --aisitex-text-muted: #57606A;
            --aisitex-border: #D0D7DE;
            --aisitex-border-light: #EAEFF4;
            --aisitex-max-width: 1280px;
            --aisitex-radius: 8px;
            --aisitex-transition: all 0.25s ease;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft JhengHei", sans-serif;
            background-color: var(--aisitex-bg);
            color: var(--aisitex-text);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        /* 頂部導航欄 */
        .aisitex-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--aisitex-border-light);
        }

        .aisitex-nav-container {
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .aisitex-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            font-size: 20px;
            color: var(--aisitex-secondary);
        }

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

        .aisitex-nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .aisitex-nav-link {
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--aisitex-text-muted);
            border-radius: var(--aisitex-radius);
            transition: var(--aisitex-transition);
        }

        .aisitex-nav-link:hover {
            color: var(--aisitex-primary);
            background-color: rgba(0, 82, 217, 0.04);
        }

        .aisitex-nav-link.active {
            color: var(--aisitex-primary);
            background-color: rgba(0, 82, 217, 0.08);
            font-weight: 600;
        }

        .aisitex-nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .aisitex-btn-primary {
            background-color: var(--aisitex-primary);
            color: white;
            padding: 10px 20px;
            border-radius: var(--aisitex-radius);
            font-weight: 600;
            font-size: 14px;
            transition: var(--aisitex-transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .aisitex-btn-primary:hover {
            background-color: var(--aisitex-primary-hover);
            transform: translateY(-1px);
        }

        .aisitex-menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .aisitex-menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--aisitex-secondary);
            margin: 5px 0;
            transition: var(--aisitex-transition);
        }

        .aisitex-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background-color: rgba(0,0,0,0.4);
            z-index: 998;
        }

        /* 首屏 Hero Banner */
        .aisitex-hero {
            max-width: var(--aisitex-max-width);
            margin: 40px auto 60px;
            padding: 0 24px;
        }

        .aisitex-hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            background: var(--aisitex-surface);
            border: 1px solid var(--aisitex-border-light);
            border-radius: 16px;
            padding: 64px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }

        .aisitex-hero-content {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .aisitex-hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--aisitex-primary);
            background: rgba(0, 82, 217, 0.08);
            padding: 6px 12px;
            border-radius: 20px;
            width: fit-content;
        }

        .aisitex-hero-title {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--aisitex-secondary);
        }

        .aisitex-hero-subtitle {
            font-size: 17px;
            color: var(--aisitex-text-muted);
            line-height: 1.7;
        }

        .aisitex-hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 8px;
        }

        .aisitex-hero-image-wrap {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
            background: #111;
        }

        .aisitex-hero-image {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
        }

        /* 雜誌化章節通用樣式 */
        .aisitex-section {
            max-width: var(--aisitex-max-width);
            margin: 0 auto 80px;
            padding: 0 24px;
        }

        .aisitex-section-header {
            margin-bottom: 40px;
        }

        .aisitex-section-num {
            font-size: 13px;
            font-weight: 700;
            color: var(--aisitex-primary);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: block;
        }

        .aisitex-section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--aisitex-secondary);
            line-height: 1.3;
        }

        /* 02. 功能切片 (Feature Slice) */
        .aisitex-feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .aisitex-feature-card {
            background: var(--aisitex-surface);
            border: 1px solid var(--aisitex-border-light);
            border-radius: 16px;
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 24px;
            transition: var(--aisitex-transition);
        }

        .aisitex-feature-card:hover {
            box-shadow: 0 12px 32px rgba(0,0,0,0.04);
            transform: translateY(-2px);
        }

        .aisitex-feature-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--aisitex-secondary);
            margin-bottom: 12px;
        }

        .aisitex-feature-text p {
            font-size: 15px;
            color: var(--aisitex-text-muted);
            line-height: 1.6;
        }

        .aisitex-feature-img {
            width: 100%;
            height: 240px;
            object-fit: cover;
            border-radius: 8px;
            background: #111;
        }

        /* 03. 證據與投研能力 (Evidence Block) */
        .aisitex-evidence-container {
            background: var(--aisitex-surface);
            border: 1px solid var(--aisitex-border-light);
            border-radius: 16px;
            padding: 56px;
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .aisitex-evidence-content p {
            font-size: 16px;
            color: var(--aisitex-text-muted);
            margin-top: 16px;
            line-height: 1.7;
        }

        .aisitex-evidence-gallery {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .aisitex-evidence-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 8px;
        }

        /* 04. 平台選擇與快速通道 (Navigation Path Links) */
        .aisitex-platforms-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }

        .aisitex-platform-card {
            background: var(--aisitex-surface);
            border: 1px solid var(--aisitex-border-light);
            border-radius: 12px;
            padding: 32px;
            transition: var(--aisitex-transition);
        }

        .aisitex-platform-card:hover {
            border-color: var(--aisitex-primary);
            box-shadow: 0 8px 24px rgba(0, 82, 217, 0.06);
        }

        .aisitex-platform-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--aisitex-secondary);
            margin-bottom: 8px;
        }

        .aisitex-platform-card p {
            font-size: 14px;
            color: var(--aisitex-text-muted);
            margin-bottom: 16px;
        }

        .aisitex-link-arrow {
            font-size: 14px;
            font-weight: 600;
            color: var(--aisitex-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 05. CTA 下載區塊 */
        .aisitex-cta-banner {
            max-width: var(--aisitex-max-width);
            margin: 0 auto 80px;
            padding: 0 24px;
        }

        .aisitex-cta-inner {
            background: linear-gradient(135deg, #1C2128 0%, #0D1117 100%);
            border-radius: 20px;
            padding: 64px;
            color: white;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 40px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .aisitex-cta-text h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
            color: #FFFFFF;
        }

        .aisitex-cta-text p {
            font-size: 16px;
            color: #8B949E;
            max-width: 600px;
            line-height: 1.6;
        }

        .aisitex-cta-buttons {
            display: flex;
            gap: 16px;
        }

        /* 頁腳 */
        .aisitex-footer {
            border-top: 1px solid var(--aisitex-border-light);
            background-color: #FFFFFF;
            padding: 48px 24px;
            margin-top: 80px;
        }

        .aisitex-footer-container {
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

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

        .aisitex-footer-nav a {
            font-size: 14px;
            color: var(--aisitex-text-muted);
            transition: var(--aisitex-transition);
        }

        .aisitex-footer-nav a:hover {
            color: var(--aisitex-primary);
        }

        .aisitex-footer-info {
            font-size: 13px;
            color: var(--aisitex-text-muted);
            line-height: 1.6;
            border-top: 1px solid var(--aisitex-border-light);
            padding-top: 24px;
        }

        /* 響應式佈局適配 */
        @media (max-width: 1024px) {
            .aisitex-hero-grid,
            .aisitex-feature-grid,
            .aisitex-evidence-container,
            .aisitex-platforms-grid,
            .aisitex-cta-inner {
                grid-template-columns: 1fr;
            }
            .aisitex-hero-grid {
                padding: 40px;
            }
            .aisitex-cta-inner {
                padding: 40px;
            }
        }

        @media (max-width: 768px) {
            .aisitex-nav-menu,
            .aisitex-nav-actions .aisitex-btn-primary {
                display: none;
            }
            .aisitex-menu-toggle {
                display: block;
            }
            .aisitex-hero-title {
                font-size: 32px;
            }
            .aisitex-section-title {
                font-size: 26px;
            }
            .aisitex-hero-grid {
                padding: 24px;
            }

            /* 手機端側邊抽屜導航 */
            .aisitex-nav-menu.active {
                display: flex;
                flex-direction: column;
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: white;
                padding: 24px;
                border-bottom: 1px solid var(--aisitex-border-light);
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                z-index: 999;
            }
            .aisitex-nav-overlay.active {
                display: block;
            }
        }

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft JhengHei", sans-serif;
    line-height: 1.6;
    color: #24292F;
}

.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-color: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #EAEFF4;
        }

.aisitex-header .aisitex-nav-container{
            max-width: 1280px;
            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: #1C2128;
        }

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

.aisitex-header .aisitex-nav-menu{
            display: flex;
            align-items: center;
            gap: 8px;
        }

.aisitex-header .aisitex-nav-link{
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: #57606A;
            border-radius: 8px;
            transition: all 0.25s ease;
        }

.aisitex-header .aisitex-nav-link:hover{
            color: #0052D9;
            background-color: rgba(0, 82, 217, 0.04);
        }

.aisitex-header .aisitex-nav-link.active{
            color: #0052D9;
            background-color: rgba(0, 82, 217, 0.08);
            font-weight: 600;
        }

.aisitex-header .aisitex-nav-actions{
            display: flex;
            align-items: center;
            gap: 12px;
        }

.aisitex-header .aisitex-btn-primary{
            background-color: #0052D9;
            color: white;
            padding: 10px 20px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

.aisitex-header .aisitex-btn-primary:hover{
            background-color: #0040B0;
            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: #1C2128;
            margin: 5px 0;
            transition: all 0.25s ease;
        }

@media (max-width: 768px){.aisitex-header .aisitex-nav-menu, .aisitex-header .aisitex-nav-actions .aisitex-btn-primary{
                display: none;
            }

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

.aisitex-header .aisitex-nav-menu.active{
                display: flex;
                flex-direction: column;
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: white;
                padding: 24px;
                border-bottom: 1px solid #EAEFF4;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                z-index: 999;
            }

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

.aisitex-footer {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft JhengHei", sans-serif;
    line-height: 1.6;
    color: #24292F;
}

.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{
            border-top: 1px solid #EAEFF4;
            background-color: #FFFFFF;
            padding: 48px 24px;
            margin-top: 80px;
        }

.aisitex-footer .aisitex-footer-container{
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

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

.aisitex-footer .aisitex-footer-nav a{
            font-size: 14px;
            color: #57606A;
            transition: all 0.25s ease;
        }

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

.aisitex-footer .aisitex-footer-info{
            font-size: 13px;
            color: #57606A;
            line-height: 1.6;
            border-top: 1px solid #EAEFF4;
            padding-top: 24px;
        }