:root {
            --aisitex-bg: #0f172a;
            --aisitex-card-bg: #1e293b;
            --aisitex-border: #334155;
            --aisitex-text: #f8fafc;
            --aisitex-text-muted: #94a3b8;
            --aisitex-primary: #229ed9;
            --aisitex-primary-hover: #1b85bd;
            --aisitex-accent: #38bdf8;
            --aisitex-success: #22c55e;
            --aisitex-font: Inter, system-ui, -apple-system, sans-serif;
        }

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

        body {
            font-family: var(--aisitex-font);
            background-color: var(--aisitex-bg);
            color: var(--aisitex-text);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 顶栏与导航 */
        .aisitex-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(15, 23, 42, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--aisitex-border);
        }

        .aisitex-nav-container {
            max-width: 1200px;
            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-text);
            font-weight: 700;
            font-size: 1.2rem;
        }

        .aisitex-logo-img {
            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-size: 0.95rem;
            font-weight: 500;
            transition: color 0.15s ease;
            position: relative;
        }

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

        .aisitex-nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -22px;
            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-color: var(--aisitex-text);
            margin: 5px 0;
            transition: 0.15s;
        }

        .aisitex-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 99;
        }

        /* 主容器 */
        .aisitex-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 40px 24px 80px;
        }

        /* 首屏区块：平台状态带与主宣导 */
        .aisitex-hero {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
            padding: 40px 0 80px;
            border-bottom: 1px solid var(--aisitex-border);
        }

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

        .aisitex-status-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: rgba(34, 158, 217, 0.1);
            border: 1px solid rgba(34, 158, 217, 0.3);
            color: var(--aisitex-accent);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            width: fit-content;
        }

        .aisitex-status-dot {
            width: 8px;
            height: 8px;
            background-color: var(--aisitex-success);
            border-radius: 50%;
            box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
        }

        .aisitex-hero-title {
            font-size: 2.75rem;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .aisitex-hero-subtitle {
            font-size: 1.05rem;
            color: var(--aisitex-text-muted);
            line-height: 1.7;
        }

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

        .aisitex-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            text-decoration: none;
            transition: all 0.15s ease;
            cursor: pointer;
        }

        .aisitex-btn-primary {
            background-color: var(--aisitex-primary);
            color: #fff;
        }

        .aisitex-btn-primary:hover {
            background-color: var(--aisitex-primary-hover);
        }

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

        .aisitex-btn-secondary:hover {
            border-color: var(--aisitex-primary);
        }

        .aisitex-hero-media {
            background-color: var(--aisitex-card-bg);
            border: 1px solid var(--aisitex-border);
            border-radius: 16px;
            padding: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }

        .aisitex-hero-media img {
            width: 100%;
            height: auto;
            border-radius: 8px;
            display: block;
        }

        /* 平台矩阵与对照区 */
        .aisitex-section {
            padding: 80px 0;
            border-bottom: 1px solid var(--aisitex-border);
        }

        .aisitex-section:last-of-type {
            border-bottom: none;
        }

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

        .aisitex-section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .aisitex-section-summary {
            color: var(--aisitex-text-muted);
            font-size: 1rem;
            line-height: 1.6;
        }

        .aisitex-matrix-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .aisitex-matrix-card {
            background-color: var(--aisitex-card-bg);
            border: 1px solid var(--aisitex-border);
            border-radius: 12px;
            padding: 32px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            transition: border-color 0.15s ease;
        }

        .aisitex-matrix-card:hover {
            border-color: var(--aisitex-primary);
        }

        .aisitex-matrix-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .aisitex-matrix-platform {
            font-size: 1.25rem;
            font-weight: 600;
        }

        .aisitex-matrix-status {
            font-size: 0.8rem;
            padding: 4px 10px;
            background: rgba(34, 197, 94, 0.1);
            color: var(--aisitex-success);
            border-radius: 4px;
            font-weight: 600;
        }

        .aisitex-matrix-arch {
            font-size: 0.85rem;
            color: var(--aisitex-accent);
            font-family: monospace;
        }

        .aisitex-matrix-desc {
            color: var(--aisitex-text-muted);
            font-size: 0.95rem;
        }

        /* 核心性能架构展示区 */
        .aisitex-features-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .aisitex-features-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .aisitex-feature-item {
            background-color: var(--aisitex-card-bg);
            border: 1px solid var(--aisitex-border);
            padding: 24px;
            border-radius: 12px;
        }

        .aisitex-feature-item h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--aisitex-text);
        }

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

        .aisitex-showcase-img {
            background-color: var(--aisitex-card-bg);
            border: 1px solid var(--aisitex-border);
            border-radius: 16px;
            padding: 16px;
            text-align: center;
        }

        .aisitex-showcase-img img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
        }

        /* 底部 */
        .aisitex-footer {
            border-top: 1px solid var(--aisitex-border);
            padding: 40px 0;
            background-color: #090e17;
            text-align: center;
            color: var(--aisitex-text-muted);
            font-size: 0.9rem;
        }

        .aisitex-footer-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: center;
        }

        /* 响应式断点 */
        @media (max-width: 968px) {
            .aisitex-hero {
                grid-template-columns: 1fr;
                gap: 32px;
                padding: 24px 0 48px;
            }

            .aisitex-hero-title {
                font-size: 2.2rem;
            }

            .aisitex-matrix-grid,
            .aisitex-features-layout {
                grid-template-columns: 1fr;
            }

            .aisitex-nav-menu {
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background-color: var(--aisitex-bg);
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                border-bottom: 1px solid var(--aisitex-border);
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: 0.2s ease;
                box-shadow: 0 10px 30px rgba(0,0,0,0.5);
            }

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

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

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

            .aisitex-menu-toggle.active span:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }

            .aisitex-menu-toggle.active span:nth-child(2) {
                opacity: 0;
            }

            .aisitex-menu-toggle.active span:nth-child(3) {
                transform: rotate(-45deg) translate(7px, -6px);
            }

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

.aisitex-header {
    font-family: Inter, system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: #f8fafc;
}

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

.aisitex-header{
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(15, 23, 42, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #334155;
        }

.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: #f8fafc;
            font-weight: 700;
            font-size: 1.2rem;
        }

.aisitex-header .aisitex-logo-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{
            text-decoration: none;
            color: #94a3b8;
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.15s ease;
            position: relative;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #229ed9;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: -22px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #229ed9;
        }

.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: #f8fafc;
            margin: 5px 0;
            transition: 0.15s;
        }

@media (max-width: 968px){.aisitex-header .aisitex-nav-menu{
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background-color: #0f172a;
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                border-bottom: 1px solid #334155;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: 0.2s ease;
                box-shadow: 0 10px 30px rgba(0,0,0,0.5);
            }

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

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

.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: Inter, system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: #f8fafc;
}

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

.aisitex-footer{
            border-top: 1px solid #334155;
            padding: 40px 0;
            background-color: #090e17;
            text-align: center;
            color: #94a3b8;
            font-size: 0.9rem;
        }

.aisitex-footer .aisitex-footer-content{
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: center;
        }