:root {
            --aisitex-primary: #107C41;
            --aisitex-primary-dark: #0B5329;
            --aisitex-secondary: #23272E;
            --aisitex-bg: #F8F9FA;
            --aisitex-surface: #FFFFFF;
            --aisitex-text: #1F2328;
            --aisitex-text-muted: #57606A;
            --aisitex-border: #D0D7DE;
            --aisitex-max-width: 1200px;
        }

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

        body {
            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;
        }

        /* 顶部导航栏 */
        .aisitex-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--aisitex-border);
        }

        .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;
            text-decoration: none;
            color: var(--aisitex-secondary);
            font-weight: 700;
            font-size: 1.2rem;
        }

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

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

        .aisitex-nav-link {
            text-decoration: none;
            color: var(--aisitex-text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s;
            position: relative;
            padding: 8px 0;
        }

        .aisitex-nav-link:hover,
        .aisitex-nav-link.active {
            color: var(--aisitex-primary);
        }

        .aisitex-nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--aisitex-primary);
        }

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

        .aisitex-menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--aisitex-secondary);
            margin: 5px 0;
            transition: 0.3s;
        }

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

        /* 首屏舞台 (Hero Stage) */
        .aisitex-hero-stage {
            background-color: var(--aisitex-secondary);
            color: #FFFFFF;
            padding: 96px 24px 120px;
            position: relative;
            overflow: hidden;
        }

        .aisitex-hero-container {
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

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

        .aisitex-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(16, 124, 65, 0.2);
            color: #4CE67E;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            width: fit-content;
        }

        .aisitex-hero-title {
            font-size: 3rem;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .aisitex-hero-desc {
            font-size: 1.1rem;
            color: #99A1A9;
            line-height: 1.7;
        }

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

        .aisitex-btn-primary {
            background-color: var(--aisitex-primary);
            color: #FFFFFF;
            padding: 14px 28px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background-color 0.2s, transform 0.1s;
            box-shadow: 0 4px 12px rgba(16, 124, 65, 0.3);
        }

        .aisitex-btn-primary:hover {
            background-color: #0E6B38;
            transform: translateY(-1px);
        }

        .aisitex-btn-secondary {
            background: rgba(255, 255, 255, 0.1);
            color: #FFFFFF;
            padding: 14px 28px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s;
        }

        .aisitex-btn-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
        }

        .aisitex-hero-visual {
            position: relative;
        }

        .aisitex-hero-img {
            width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.5);
            border: 1px solid rgba(255,255,255,0.1);
        }

        /* 错位章节网格 (Scenario Grid) */
        .aisitex-section {
            padding: 100px 24px;
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
        }

        .aisitex-section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 64px;
        }

        .aisitex-section-title {
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--aisitex-secondary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .aisitex-section-summary {
            font-size: 1.05rem;
            color: var(--aisitex-text-muted);
            line-height: 1.6;
        }

        .aisitex-scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .aisitex-scenario-card {
            background: var(--aisitex-surface);
            padding: 40px 32px;
            border-radius: 12px;
            border: 1px solid var(--aisitex-border);
            display: flex;
            flex-direction: column;
            gap: 20px;
            transition: transform 0.2s, box-shadow 0.2s;
            position: relative;
        }

        .aisitex-scenario-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.06);
            border-color: var(--aisitex-primary);
        }

        .aisitex-scenario-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--aisitex-primary);
            opacity: 0.8;
            line-height: 1;
        }

        .aisitex-scenario-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--aisitex-secondary);
        }

        .aisitex-scenario-card p {
            font-size: 0.95rem;
            color: var(--aisitex-text-muted);
            line-height: 1.6;
        }

        /* 视觉对照区 (Comparison Section) */
        .aisitex-comparison-wrapper {
            background: var(--aisitex-surface);
            border-top: 1px solid var(--aisitex-border);
            border-bottom: 1px solid var(--aisitex-border);
            padding: 100px 24px;
        }

        .aisitex-comparison-container {
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 64px;
            align-items: center;
        }

        .aisitex-comparison-content h2 {
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--aisitex-secondary);
            margin-bottom: 16px;
        }

        .aisitex-comparison-content p {
            font-size: 1.05rem;
            color: var(--aisitex-text-muted);
            margin-bottom: 32px;
            line-height: 1.6;
        }

        .aisitex-table-wrapper {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .aisitex-comparison-row {
            background: var(--aisitex-bg);
            padding: 20px 24px;
            border-radius: 8px;
            border: 1px solid var(--aisitex-border);
        }

        .aisitex-aspect-title {
            font-weight: 600;
            color: var(--aisitex-secondary);
            margin-bottom: 8px;
            font-size: 1rem;
        }

        .aisitex-comparison-details {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            font-size: 0.9rem;
        }

        .aisitex-official-side {
            color: var(--aisitex-primary);
            font-weight: 500;
        }

        .aisitex-other-side {
            color: var(--aisitex-text-muted);
        }

        .aisitex-comparison-media img {
            width: 100%;
            height: auto;
            border-radius: 12px;
            border: 1px solid var(--aisitex-border);
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }

        /* 引导与路径区块 */
        .aisitex-path-section {
            padding: 100px 24px;
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
        }

        .aisitex-path-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .aisitex-path-card {
            background: var(--aisitex-surface);
            padding: 36px;
            border-radius: 12px;
            border: 1px solid var(--aisitex-border);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .aisitex-path-card h3 {
            font-size: 1.2rem;
            color: var(--aisitex-secondary);
        }

        .aisitex-path-card p {
            color: var(--aisitex-text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .aisitex-path-link {
            color: var(--aisitex-primary);
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: auto;
        }

        .aisitex-path-link:hover {
            text-decoration: underline;
        }

        /* 页脚 */
        .aisitex-footer {
            background: var(--aisitex-secondary);
            color: #99A1A9;
            padding: 60px 24px 40px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }

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

        .aisitex-footer-nav {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .aisitex-footer-nav a {
            color: #FFFFFF;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s;
        }

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

        .aisitex-footer-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 32px;
            font-size: 0.85rem;
        }

        /* 响应式适配 */
        @media (max-width: 968px) {
            .aisitex-hero-container,
            .aisitex-comparison-container {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .aisitex-scenario-grid,
            .aisitex-path-grid {
                grid-template-columns: 1fr;
            }

            .aisitex-hero-title {
                font-size: 2.25rem;
            }

            .aisitex-nav-menu {
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: var(--aisitex-surface);
                flex-direction: column;
                padding: 24px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
                border-bottom: 1px solid var(--aisitex-border);
            }

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

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

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

            .aisitex-footer-info {
                flex-direction: column;
                gap: 16px;
                align-items: flex-start;
            }
        }

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #1F2328;
}

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

.aisitex-header{
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #D0D7DE;
        }

.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: #23272E;
            font-weight: 700;
            font-size: 1.2rem;
        }

.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{
            text-decoration: none;
            color: #57606A;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s;
            position: relative;
            padding: 8px 0;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #107C41;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #107C41;
        }

.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: #23272E;
            margin: 5px 0;
            transition: 0.3s;
        }

@media (max-width: 968px){.aisitex-header .aisitex-nav-menu{
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                padding: 24px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
                border-bottom: 1px solid #D0D7DE;
            }

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

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

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

.aisitex-footer {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #1F2328;
}

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

.aisitex-footer{
            background: #23272E;
            color: #99A1A9;
            padding: 60px 24px 40px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }

.aisitex-footer .aisitex-footer-container{
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

.aisitex-footer .aisitex-footer-nav{
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

.aisitex-footer .aisitex-footer-nav a{
            color: #FFFFFF;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s;
        }

.aisitex-footer .aisitex-footer-nav a:hover{
            color: #107C41;
        }

.aisitex-footer .aisitex-footer-info{
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 32px;
            font-size: 0.85rem;
        }

@media (max-width: 968px){.aisitex-footer .aisitex-footer-info{
                flex-direction: column;
                gap: 16px;
                align-items: flex-start;
            }}