:root {
            --aisitex-primary: #25D366;
            --aisitex-primary-dark: #128C7E;
            --aisitex-bg: #F7F8FA;
            --aisitex-surface: #FFFFFF;
            --aisitex-text: #111B21;
            --aisitex-text-muted: #667781;
            --aisitex-border: #E9EDEF;
            --aisitex-accent-bg: #EBF5F0;
            --aisitex-max-width: 1200px;
        }

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

        body {
            font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            background-color: var(--aisitex-bg);
            color: var(--aisitex-text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

        /* 顶部导航组件 */
        .aisitex-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(247, 248, 250, 0.92);
            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;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--aisitex-text);
        }

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

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

        .aisitex-nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--aisitex-text-muted);
            transition: color 0.2s ease;
            position: relative;
            padding: 6px 0;
        }

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

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

        .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-text);
            margin: 5px 0;
            transition: 0.3s;
        }

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

        /* 主体内容 */
        .aisitex-main {
            display: block;
        }

        /* Hero 首屏组件 */
        .aisitex-hero {
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            padding: 64px 24px 48px;
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 48px;
            align-items: center;
        }

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

        .aisitex-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background-color: var(--aisitex-accent-bg);
            color: var(--aisitex-primary-dark);
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: 20px;
            width: fit-content;
        }

        .aisitex-hero h1 {
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--aisitex-text);
            letter-spacing: -0.02em;
        }

        .aisitex-hero p {
            font-size: 1.1rem;
            color: var(--aisitex-text-muted);
            line-height: 1.7;
            max-width: 520px;
        }

        .aisitex-action-group {
            display: flex;
            gap: 16px;
            margin-top: 8px;
        }

        .aisitex-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 8px;
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .aisitex-btn-primary {
            background-color: var(--aisitex-primary);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
        }

        .aisitex-btn-primary:hover {
            background-color: #22bf5b;
            transform: translateY(-1px);
        }

        .aisitex-btn-secondary {
            background-color: var(--aisitex-surface);
            color: var(--aisitex-text);
            border: 1px solid var(--aisitex-border);
        }

        .aisitex-btn-secondary:hover {
            border-color: var(--aisitex-text-muted);
            background-color: #fff;
        }

        .aisitex-hero-media {
            position: relative;
            background: var(--aisitex-surface);
            border-radius: 16px;
            border: 1px solid var(--aisitex-border);
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0,0,0,0.06);
        }

        .aisitex-hero-media img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* 全宽色带过渡区块 (Feature Split) */
        .aisitex-section-band {
            background-color: var(--aisitex-accent-bg);
            padding: 80px 0;
            margin: 40px 0;
            border-top: 1px solid var(--aisitex-border);
            border-bottom: 1px solid var(--aisitex-border);
        }

        .aisitex-container {
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .aisitex-split-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .aisitex-split-content h2 {
            font-size: 2.25rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 20px;
            letter-spacing: -0.01em;
        }

        .aisitex-split-content p {
            color: var(--aisitex-text-muted);
            font-size: 1.05rem;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .aisitex-feature-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .aisitex-feature-item h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--aisitex-text);
        }

        .aisitex-feature-item p {
            font-size: 0.95rem;
            color: var(--aisitex-text-muted);
            margin: 0;
        }

        .aisitex-media-card {
            background: var(--aisitex-surface);
            border-radius: 12px;
            border: 1px solid var(--aisitex-border);
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.04);
        }

        .aisitex-media-card img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* Scroller Preview 区块 */
        .aisitex-preview-section {
            max-width: var(--aisitex-max-width);
            margin: 80px auto;
            padding: 0 24px;
            text-align: center;
        }

        .aisitex-section-header {
            max-width: 700px;
            margin: 0 auto 48px;
        }

        .aisitex-section-header h2 {
            font-size: 2.25rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

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

        .aisitex-preview-showcase {
            background: var(--aisitex-surface);
            border-radius: 16px;
            border: 1px solid var(--aisitex-border);
            overflow: hidden;
            box-shadow: 0 16px 32px rgba(0,0,0,0.05);
            max-width: 1000px;
            margin: 0 auto;
        }

        .aisitex-preview-showcase img {
            width: 100%;
            height: auto;
            display: block;
        }

        .aisitex-preview-caption {
            padding: 18px;
            background-color: #fafbfc;
            border-top: 1px solid var(--aisitex-border);
            font-size: 0.95rem;
            color: var(--aisitex-text-muted);
            font-weight: 500;
        }

        /* 底部相关连结区 */
        .aisitex-links-section {
            background-color: #ffffff;
            border-top: 1px solid var(--aisitex-border);
            padding: 60px 0;
            margin-top: 80px;
        }

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

        .aisitex-link-card {
            padding: 24px;
            border-radius: 12px;
            border: 1px solid var(--aisitex-border);
            background: var(--aisitex-bg);
            transition: all 0.2s ease;
        }

        .aisitex-link-card:hover {
            border-color: var(--aisitex-primary);
            transform: translateY(-2px);
        }

        .aisitex-link-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .aisitex-link-card p {
            font-size: 0.9rem;
            color: var(--aisitex-text-muted);
            margin-bottom: 16px;
            line-height: 1.5;
        }

        .aisitex-inline-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--aisitex-primary-dark);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 页脚 */
        .aisitex-footer {
            border-top: 1px solid var(--aisitex-border);
            padding: 32px 24px;
            text-align: center;
            color: var(--aisitex-text-muted);
            font-size: 0.9rem;
            background-color: var(--aisitex-surface);
        }

        .aisitex-footer-inner {
            max-width: var(--aisitex-max-width);
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 响应式断点 */
        @media (max-width: 968px) {
            .aisitex-hero {
                grid-template-columns: 1fr;
                gap: 40px;
                padding-top: 40px;
            }

            .aisitex-split-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .aisitex-links-grid {
                grid-template-columns: 1fr;
            }

            .aisitex-nav-menu {
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background-color: var(--aisitex-surface);
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.08);
                border-bottom: 1px solid var(--aisitex-border);
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            }

            .aisitex-nav-menu.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

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

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

            .aisitex-footer-inner {
                flex-direction: column;
                gap: 16px;
            }
        }

.aisitex-header {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #111B21;
}

.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(247, 248, 250, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #E9EDEF;
        }

.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: 1.25rem;
            color: #111B21;
        }

.aisitex-header .aisitex-brand img{
            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: 0.95rem;
            font-weight: 500;
            color: #667781;
            transition: color 0.2s ease;
            position: relative;
            padding: 6px 0;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #128C7E;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #25D366;
            border-radius: 2px;
        }

.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: #111B21;
            margin: 5px 0;
            transition: 0.3s;
        }

@media (max-width: 968px){.aisitex-header .aisitex-nav-menu{
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background-color: #FFFFFF;
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.08);
                border-bottom: 1px solid #E9EDEF;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            }

.aisitex-header .aisitex-nav-menu.active{
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

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

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

.aisitex-footer {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #111B21;
}

.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{
            border-top: 1px solid #E9EDEF;
            padding: 32px 24px;
            text-align: center;
            color: #667781;
            font-size: 0.9rem;
            background-color: #FFFFFF;
        }

.aisitex-footer .aisitex-footer-inner{
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

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