:root {
            --aisitex-ink: #203331;
            --aisitex-muted: #667572;
            --aisitex-teal: #0e6b68;
            --aisitex-teal-dark: #084b4a;
            --aisitex-coral: #d96850;
            --aisitex-coral-dark: #b84d39;
            --aisitex-cream: #f5f1e8;
            --aisitex-paper: #fbfaf6;
            --aisitex-mist: #e5ece6;
            --aisitex-line: #d9dfd8;
            --aisitex-white: #ffffff;
            --aisitex-radius: 4px;
            --aisitex-content: 1200px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--aisitex-cream);
            color: var(--aisitex-ink);
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        button,
        a {
            -webkit-tap-highlight-color: transparent;
        }

        button:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(217, 104, 80, 0.48);
            outline-offset: 4px;
        }

        svg {
            display: block;
        }

        .aisitex-shell {
            width: min(calc(100% - 48px), var(--aisitex-content));
            margin: 0 auto;
        }

        .aisitex-site-header {
            position: relative;
            z-index: 10;
            border-bottom: 1px solid rgba(32, 51, 49, 0.12);
            background: rgba(245, 241, 232, 0.96);
        }

        .aisitex-header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 78px;
            gap: 32px;
        }

        .aisitex-brand {
            display: inline-flex;
            align-items: baseline;
            gap: 11px;
            flex-shrink: 0;
        }

        .aisitex-brand-name {
            color: var(--aisitex-teal-dark);
            font-size: 21px;
            font-weight: 800;
            letter-spacing: 0;
            line-height: 1;
        }

        .aisitex-brand-note {
            color: var(--aisitex-muted);
            font-size: 11px;
            letter-spacing: 0.08em;
            line-height: 1;
        }

        .aisitex-nav-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            padding: 0;
            border: 1px solid var(--aisitex-line);
            border-radius: var(--aisitex-radius);
            background: transparent;
            color: var(--aisitex-teal-dark);
            cursor: pointer;
        }

        .aisitex-nav-toggle svg {
            width: 20px;
            height: 20px;
        }

        .aisitex-nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .aisitex-nav-list[hidden] {
            display: none;
        }

        .aisitex-nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            min-height: 42px;
            padding: 0 16px;
            color: var(--aisitex-muted);
            font-size: 14px;
            font-weight: 600;
            transition: color 180ms ease, background-color 180ms ease;
        }

        .aisitex-nav-link::after {
            position: absolute;
            right: 16px;
            bottom: 4px;
            left: 16px;
            height: 2px;
            background: var(--aisitex-coral);
            content: "";
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 180ms ease;
        }

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

        .aisitex-nav-link:hover::after,
        .aisitex-nav-link.active::after {
            transform: scaleX(1);
        }

        .aisitex-hero {
            position: relative;
            overflow: hidden;
            padding: 86px 0 68px;
            background: var(--aisitex-cream);
        }

        .aisitex-hero::before {
            position: absolute;
            top: 0;
            left: 0;
            width: 18px;
            height: 100%;
            background: var(--aisitex-coral);
            content: "";
        }

        .aisitex-hero-copy {
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
        }

        .aisitex-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin: 0 0 22px;
            color: var(--aisitex-teal);
            font-size: 12px;
            font-weight: 800;
            letter-spacing: 0.13em;
            text-transform: uppercase;
        }

        .aisitex-eyebrow::before {
            width: 28px;
            height: 2px;
            background: var(--aisitex-coral);
            content: "";
        }

        .aisitex-hero-title {
            max-width: 680px;
            margin: 0 auto;
            color: var(--aisitex-teal-dark);
            font-size: clamp(42px, 6vw, 76px);
            font-weight: 800;
            letter-spacing: 0;
            line-height: 1.12;
        }

        .aisitex-hero-title span {
            display: block;
        }

        .aisitex-hero-title span:last-child {
            color: var(--aisitex-coral);
        }

        .aisitex-hero-subtitle {
            max-width: 570px;
            margin: 26px auto 0;
            color: var(--aisitex-muted);
            font-size: 17px;
            line-height: 1.9;
        }

        .aisitex-hero-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 34px;
        }

        .aisitex-action {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            min-height: 50px;
            padding: 0 22px;
            border: 1px solid transparent;
            border-radius: var(--aisitex-radius);
            font-size: 14px;
            font-weight: 800;
            transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
        }

        .aisitex-action:hover {
            transform: translateY(-2px);
        }

        .aisitex-action svg {
            width: 17px;
            height: 17px;
        }

        .aisitex-action-primary {
            background: var(--aisitex-coral);
            color: var(--aisitex-white);
        }

        .aisitex-action-primary:hover {
            background: var(--aisitex-coral-dark);
        }

        .aisitex-action-secondary {
            border-color: var(--aisitex-teal);
            color: var(--aisitex-teal);
        }

        .aisitex-action-secondary:hover {
            background: var(--aisitex-teal);
            color: var(--aisitex-white);
        }

        .aisitex-hero-path {
            position: relative;
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            max-width: 1080px;
            margin: 72px auto 0;
            border-top: 1px solid var(--aisitex-teal);
            border-bottom: 1px solid var(--aisitex-line);
            background: var(--aisitex-paper);
        }

        .aisitex-hero-path::before {
            position: absolute;
            top: -1px;
            right: 14%;
            left: 14%;
            height: 1px;
            background: var(--aisitex-coral);
            content: "";
        }

        .aisitex-path-node {
            position: relative;
            min-height: 188px;
            padding: 30px 28px 25px;
            border-right: 1px solid var(--aisitex-line);
            text-align: left;
            transition: background-color 180ms ease, transform 180ms ease;
        }

        .aisitex-path-node:last-child {
            border-right: 0;
        }

        .aisitex-path-node:hover {
            z-index: 1;
            background: var(--aisitex-mist);
            transform: translateY(-4px);
        }

        .aisitex-path-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            margin-bottom: 29px;
            border: 1px solid var(--aisitex-teal);
            border-radius: 50%;
            color: var(--aisitex-teal);
            font-family: Arial, sans-serif;
            font-size: 12px;
            font-weight: 800;
        }

        .aisitex-path-node:nth-child(2) .aisitex-path-number {
            border-color: var(--aisitex-coral);
            color: var(--aisitex-coral);
        }

        .aisitex-path-label {
            display: block;
            color: var(--aisitex-teal-dark);
            font-size: 20px;
            font-weight: 800;
            line-height: 1.3;
        }

        .aisitex-path-description {
            display: block;
            max-width: 220px;
            margin-top: 9px;
            color: var(--aisitex-muted);
            font-size: 13px;
            line-height: 1.65;
        }

        .aisitex-path-arrow {
            position: absolute;
            top: 42px;
            right: -10px;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 20px;
            height: 20px;
            border: 1px solid var(--aisitex-line);
            background: var(--aisitex-paper);
            color: var(--aisitex-coral);
        }

        .aisitex-path-arrow svg {
            width: 12px;
            height: 12px;
        }

        .aisitex-section {
            padding: 112px 0;
        }

        .aisitex-section-alt {
            background: var(--aisitex-paper);
        }

        .aisitex-section-heading {
            max-width: 720px;
            margin-bottom: 52px;
        }

        .aisitex-section-kicker {
            display: block;
            margin-bottom: 15px;
            color: var(--aisitex-coral);
            font-family: Arial, sans-serif;
            font-size: 12px;
            font-weight: 800;
            letter-spacing: 0.12em;
        }

        .aisitex-section-title {
            margin: 0;
            color: var(--aisitex-teal-dark);
            font-size: clamp(30px, 4vw, 50px);
            font-weight: 800;
            letter-spacing: 0;
            line-height: 1.2;
        }

        .aisitex-section-lead {
            max-width: 620px;
            margin: 20px 0 0;
            color: var(--aisitex-muted);
            font-size: 16px;
            line-height: 1.85;
        }

        .aisitex-decision-layout {
            display: grid;
            grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.28fr);
            gap: 80px;
            align-items: start;
        }

        .aisitex-decision-aside {
            padding-top: 8px;
        }

        .aisitex-decision-mark {
            display: block;
            color: var(--aisitex-teal);
            font-family: Arial, sans-serif;
            font-size: 88px;
            font-weight: 800;
            letter-spacing: -0.05em;
            line-height: 0.9;
        }

        .aisitex-decision-note {
            max-width: 235px;
            margin: 24px 0 0;
            color: var(--aisitex-muted);
            font-size: 14px;
            line-height: 1.8;
        }

        .aisitex-task-list {
            border-top: 1px solid var(--aisitex-line);
        }

        .aisitex-task-row {
            display: grid;
            grid-template-columns: minmax(145px, 0.65fr) minmax(0, 1fr) auto;
            gap: 24px;
            align-items: center;
            min-height: 102px;
            border-bottom: 1px solid var(--aisitex-line);
        }

        .aisitex-task-label {
            color: var(--aisitex-teal);
            font-size: 13px;
            font-weight: 800;
        }

        .aisitex-task-action {
            color: var(--aisitex-ink);
            font-size: 18px;
            font-weight: 800;
            line-height: 1.4;
        }

        .aisitex-task-link {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: var(--aisitex-coral-dark);
            font-size: 13px;
            font-weight: 800;
            white-space: nowrap;
            transition: color 180ms ease, gap 180ms ease;
        }

        .aisitex-task-link:hover {
            gap: 11px;
            color: var(--aisitex-teal);
        }

        .aisitex-task-link svg {
            width: 15px;
            height: 15px;
        }

        .aisitex-route-wrap {
            width: min(calc(100% - 48px), 1320px);
            margin: 0 auto;
        }

        .aisitex-route-heading {
            display: flex;
            align-items: end;
            justify-content: space-between;
            gap: 32px;
            margin-bottom: 48px;
        }

        .aisitex-route-heading .aisitex-section-heading {
            margin-bottom: 0;
        }

        .aisitex-route-label {
            max-width: 240px;
            margin: 0 0 7px;
            color: var(--aisitex-muted);
            font-size: 13px;
            line-height: 1.7;
            text-align: right;
        }

        .aisitex-route-line {
            position: relative;
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 0;
            padding-top: 1px;
        }

        .aisitex-route-line::before {
            position: absolute;
            top: 19px;
            right: 10%;
            left: 10%;
            height: 1px;
            background: var(--aisitex-teal);
            content: "";
        }

        .aisitex-route-step {
            position: relative;
            min-height: 230px;
            padding: 0 42px 0 0;
        }

        .aisitex-route-step:not(:first-child) {
            padding-left: 30px;
        }

        .aisitex-route-dot {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            margin-bottom: 37px;
            border: 1px solid var(--aisitex-teal);
            border-radius: 50%;
            background: var(--aisitex-cream);
            color: var(--aisitex-teal-dark);
            font-family: Arial, sans-serif;
            font-size: 12px;
            font-weight: 800;
        }

        .aisitex-route-step:nth-child(2) .aisitex-route-dot {
            border-color: var(--aisitex-coral);
            background: var(--aisitex-coral);
            color: var(--aisitex-white);
        }

        .aisitex-route-step:nth-child(3) .aisitex-route-dot {
            background: var(--aisitex-paper);
        }

        .aisitex-route-step h3 {
            margin: 0;
            color: var(--aisitex-teal-dark);
            font-size: 22px;
            font-weight: 800;
            line-height: 1.3;
        }

        .aisitex-route-step p {
            max-width: 250px;
            margin: 12px 0 0;
            color: var(--aisitex-muted);
            font-size: 14px;
            line-height: 1.8;
        }

        .aisitex-route-step a {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            margin-top: 18px;
            color: var(--aisitex-coral-dark);
            font-size: 13px;
            font-weight: 800;
        }

        .aisitex-route-step a:hover {
            color: var(--aisitex-teal);
        }

        .aisitex-route-step a svg {
            width: 14px;
            height: 14px;
        }

        .aisitex-evidence-layout {
            display: grid;
            grid-template-columns: minmax(0, 0.9fr) minmax(300px, 1.1fr);
            gap: 90px;
            align-items: start;
        }

        .aisitex-evidence-intro {
            padding-left: 24px;
            border-left: 3px solid var(--aisitex-coral);
        }

        .aisitex-evidence-intro p {
            max-width: 420px;
            margin: 0;
            color: var(--aisitex-ink);
            font-size: 22px;
            font-weight: 700;
            line-height: 1.6;
        }

        .aisitex-evidence-list {
            border-top: 1px solid var(--aisitex-line);
        }

        .aisitex-evidence-item {
            display: grid;
            grid-template-columns: 42px minmax(0, 1fr);
            gap: 18px;
            padding: 25px 0;
            border-bottom: 1px solid var(--aisitex-line);
        }

        .aisitex-evidence-number {
            color: var(--aisitex-coral);
            font-family: Arial, sans-serif;
            font-size: 13px;
            font-weight: 800;
        }

        .aisitex-evidence-item h3 {
            margin: 0;
            color: var(--aisitex-teal-dark);
            font-size: 17px;
            font-weight: 800;
            line-height: 1.4;
        }

        .aisitex-evidence-item p {
            margin: 8px 0 0;
            color: var(--aisitex-muted);
            font-size: 14px;
            line-height: 1.8;
        }

        .aisitex-destination {
            padding: 68px 0;
            background: var(--aisitex-teal);
            color: var(--aisitex-white);
        }

        .aisitex-destination-layout {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 48px;
        }

        .aisitex-destination-heading {
            max-width: 600px;
        }

        .aisitex-destination-kicker {
            display: block;
            margin-bottom: 12px;
            color: #a9d3c8;
            font-family: Arial, sans-serif;
            font-size: 12px;
            font-weight: 800;
            letter-spacing: 0.12em;
        }

        .aisitex-destination-title {
            margin: 0;
            color: var(--aisitex-white);
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 800;
            line-height: 1.25;
        }

        .aisitex-destination-text {
            max-width: 510px;
            margin: 16px 0 0;
            color: #d5e6df;
            font-size: 15px;
            line-height: 1.8;
        }

        .aisitex-destination-actions {
            display: flex;
            flex-shrink: 0;
            flex-wrap: wrap;
            gap: 12px;
        }

        .aisitex-destination .aisitex-action-primary {
            background: var(--aisitex-coral);
        }

        .aisitex-destination .aisitex-action-primary:hover {
            background: #ee8168;
        }

        .aisitex-destination .aisitex-action-secondary {
            border-color: #99c4b9;
            color: var(--aisitex-white);
        }

        .aisitex-destination .aisitex-action-secondary:hover {
            border-color: var(--aisitex-white);
            background: transparent;
        }

        .aisitex-site-footer {
            padding: 28px 0 34px;
            background: var(--aisitex-teal-dark);
            color: #b9d0c8;
        }

        .aisitex-footer-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .aisitex-footer-brand {
            color: var(--aisitex-white);
            font-size: 15px;
            font-weight: 800;
        }

        .aisitex-footer-copy {
            margin: 0;
            font-size: 12px;
        }

        .aisitex-footer-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
        }

        .aisitex-footer-nav a {
            font-size: 12px;
            transition: color 180ms ease;
        }

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

        .aisitex-reveal {
            opacity: 1;
            transform: translateY(0);
        }

        html.aisitex-motion-ready .aisitex-reveal {
            opacity: 0;
            transform: translateY(18px);
            transition: opacity 520ms ease, transform 520ms ease;
        }

        html.aisitex-motion-ready .aisitex-reveal.aisitex-is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        .aisitex-hero-copy,
        .aisitex-hero-path {
            animation: aisitex-arrive 650ms ease both;
        }

        .aisitex-hero-path {
            animation-delay: 120ms;
        }

        .aisitex-path-node:nth-child(1) {
            animation: aisitex-arrive 500ms 240ms ease both;
        }

        .aisitex-path-node:nth-child(2) {
            animation: aisitex-arrive 500ms 330ms ease both;
        }

        .aisitex-path-node:nth-child(3) {
            animation: aisitex-arrive 500ms 420ms ease both;
        }

        @keyframes aisitex-arrive {
            from {
                opacity: 0;
                transform: translateY(12px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @media (max-width: 900px) {
            .aisitex-decision-layout,
            .aisitex-evidence-layout {
                gap: 48px;
            }

            .aisitex-destination-layout {
                align-items: flex-start;
                flex-direction: column;
            }

            .aisitex-destination-actions {
                width: 100%;
            }
        }

        @media (max-width: 720px) {
            .aisitex-shell,
            .aisitex-route-wrap {
                width: min(calc(100% - 40px), var(--aisitex-content));
            }

            .aisitex-header-inner {
                min-height: 68px;
            }

            .aisitex-nav-toggle {
                display: inline-flex;
            }

            .aisitex-nav-list {
                position: absolute;
                top: 68px;
                right: 20px;
                left: 20px;
                display: flex;
                align-items: stretch;
                flex-direction: column;
                gap: 0;
                border: 1px solid var(--aisitex-line);
                background: var(--aisitex-paper);
                box-shadow: 0 14px 28px rgba(32, 51, 49, 0.1);
            }

            .aisitex-nav-list[hidden] {
                display: none;
            }

            .aisitex-nav-link {
                min-height: 52px;
                padding: 0 18px;
                border-bottom: 1px solid var(--aisitex-line);
            }

            .aisitex-nav-link:last-child {
                border-bottom: 0;
            }

            .aisitex-nav-link::after {
                right: 18px;
                bottom: 0;
                left: 18px;
            }

            .aisitex-hero {
                padding: 64px 0 42px;
            }

            .aisitex-hero::before {
                width: 8px;
            }

            .aisitex-hero-title {
                font-size: clamp(39px, 12vw, 58px);
            }

            .aisitex-hero-subtitle {
                font-size: 15px;
            }

            .aisitex-hero-actions {
                align-items: stretch;
                flex-direction: column;
                margin-right: auto;
                margin-left: auto;
                max-width: 290px;
            }

            .aisitex-action {
                width: 100%;
            }

            .aisitex-hero-path {
                grid-template-columns: 1fr;
                margin-top: 54px;
            }

            .aisitex-path-node {
                min-height: 0;
                padding: 22px 22px 21px 74px;
                border-right: 0;
                border-bottom: 1px solid var(--aisitex-line);
            }

            .aisitex-path-node:last-child {
                border-bottom: 0;
            }

            .aisitex-path-number {
                position: absolute;
                top: 22px;
                left: 22px;
                margin: 0;
            }

            .aisitex-path-arrow {
                top: auto;
                right: auto;
                bottom: -10px;
                left: 28px;
                transform: rotate(90deg);
            }

            .aisitex-section {
                padding: 76px 0;
            }

            .aisitex-section-heading {
                margin-bottom: 36px;
            }

            .aisitex-decision-layout,
            .aisitex-evidence-layout {
                grid-template-columns: 1fr;
                gap: 38px;
            }

            .aisitex-decision-mark {
                font-size: 68px;
            }

            .aisitex-decision-note {
                max-width: 380px;
                margin-top: 16px;
            }

            .aisitex-task-row {
                grid-template-columns: 1fr auto;
                gap: 8px 16px;
                padding: 20px 0;
            }

            .aisitex-task-label {
                grid-column: 1 / -1;
            }

            .aisitex-task-action {
                font-size: 16px;
            }

            .aisitex-task-link {
                grid-column: 2;
                grid-row: 2;
            }

            .aisitex-route-wrap {
                width: min(calc(100% - 40px), var(--aisitex-content));
            }

            .aisitex-route-heading {
                display: block;
                margin-bottom: 36px;
            }

            .aisitex-route-label {
                max-width: 360px;
                margin-top: 17px;
                text-align: left;
            }

            .aisitex-route-line {
                grid-template-columns: 1fr;
                gap: 0;
                padding-left: 19px;
            }

            .aisitex-route-line::before {
                top: 19px;
                right: auto;
                bottom: 32px;
                left: 19px;
                width: 1px;
                height: auto;
            }

            .aisitex-route-step,
            .aisitex-route-step:not(:first-child) {
                min-height: 0;
                padding: 0 0 42px 48px;
            }

            .aisitex-route-step:last-child {
                padding-bottom: 0;
            }

            .aisitex-route-dot {
                position: absolute;
                top: 0;
                left: 0;
                margin: 0;
            }

            .aisitex-route-step h3 {
                font-size: 20px;
            }

            .aisitex-evidence-intro {
                padding-left: 18px;
            }

            .aisitex-evidence-intro p {
                font-size: 19px;
            }

            .aisitex-destination {
                padding: 56px 0;
            }

            .aisitex-destination-actions {
                align-items: stretch;
                flex-direction: column;
                max-width: 300px;
            }

            .aisitex-footer-inner {
                align-items: flex-start;
                flex-direction: column;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }

            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }

            html.aisitex-motion-ready .aisitex-reveal {
                opacity: 1;
                transform: none;
            }
        }

.aisitex-site-header {
    font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: #203331;
}

.aisitex-site-header, .aisitex-site-header *{
            box-sizing: border-box;
        }

.aisitex-site-header a{
            color: inherit;
            text-decoration: none;
        }

.aisitex-site-header button, .aisitex-site-header a{
            -webkit-tap-highlight-color: transparent;
        }

.aisitex-site-header button:focus-visible, .aisitex-site-header a:focus-visible{
            outline: 3px solid rgba(217, 104, 80, 0.48);
            outline-offset: 4px;
        }

.aisitex-site-header svg{
            display: block;
        }

.aisitex-site-header .aisitex-shell{
            width: min(calc(100% - 48px), 1200px);
            margin: 0 auto;
        }

.aisitex-site-header{
            position: relative;
            z-index: 10;
            border-bottom: 1px solid rgba(32, 51, 49, 0.12);
            background: rgba(245, 241, 232, 0.96);
        }

.aisitex-site-header .aisitex-header-inner{
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 78px;
            gap: 32px;
        }

.aisitex-site-header .aisitex-brand{
            display: inline-flex;
            align-items: baseline;
            gap: 11px;
            flex-shrink: 0;
        }

.aisitex-site-header .aisitex-brand-name{
            color: #084b4a;
            font-size: 21px;
            font-weight: 800;
            letter-spacing: 0;
            line-height: 1;
        }

.aisitex-site-header .aisitex-brand-note{
            color: #667572;
            font-size: 11px;
            letter-spacing: 0.08em;
            line-height: 1;
        }

.aisitex-site-header .aisitex-nav-toggle{
            display: none;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            padding: 0;
            border: 1px solid #d9dfd8;
            border-radius: 4px;
            background: transparent;
            color: #084b4a;
            cursor: pointer;
        }

.aisitex-site-header .aisitex-nav-toggle svg{
            width: 20px;
            height: 20px;
        }

.aisitex-site-header .aisitex-nav-list{
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

.aisitex-site-header .aisitex-nav-list[hidden]{
            display: none;
        }

.aisitex-site-header .aisitex-nav-link{
            position: relative;
            display: inline-flex;
            align-items: center;
            min-height: 42px;
            padding: 0 16px;
            color: #667572;
            font-size: 14px;
            font-weight: 600;
            transition: color 180ms ease, background-color 180ms ease;
        }

.aisitex-site-header .aisitex-nav-link::after{
            position: absolute;
            right: 16px;
            bottom: 4px;
            left: 16px;
            height: 2px;
            background: #d96850;
            content: "";
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 180ms ease;
        }

.aisitex-site-header .aisitex-nav-link:hover, .aisitex-site-header .aisitex-nav-link.active{
            color: #084b4a;
        }

.aisitex-site-header .aisitex-nav-link:hover::after, .aisitex-site-header .aisitex-nav-link.active::after{
            transform: scaleX(1);
        }

@media (max-width: 720px){.aisitex-site-header .aisitex-shell{
                width: min(calc(100% - 40px), 1200px);
            }

.aisitex-site-header .aisitex-header-inner{
                min-height: 68px;
            }

.aisitex-site-header .aisitex-nav-toggle{
                display: inline-flex;
            }

.aisitex-site-header .aisitex-nav-list{
                position: absolute;
                top: 68px;
                right: 20px;
                left: 20px;
                display: flex;
                align-items: stretch;
                flex-direction: column;
                gap: 0;
                border: 1px solid #d9dfd8;
                background: #fbfaf6;
                box-shadow: 0 14px 28px rgba(32, 51, 49, 0.1);
            }

.aisitex-site-header .aisitex-nav-list[hidden]{
                display: none;
            }

.aisitex-site-header .aisitex-nav-link{
                min-height: 52px;
                padding: 0 18px;
                border-bottom: 1px solid #d9dfd8;
            }

.aisitex-site-header .aisitex-nav-link:last-child{
                border-bottom: 0;
            }

.aisitex-site-header .aisitex-nav-link::after{
                right: 18px;
                bottom: 0;
                left: 18px;
            }}

@media (prefers-reduced-motion: reduce){.aisitex-site-header, .aisitex-site-header *, .aisitex-site-header::before, .aisitex-site-header *::before, .aisitex-site-header::after, .aisitex-site-header *::after{
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }}

.aisitex-site-footer {
    font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: #203331;
}

.aisitex-site-footer, .aisitex-site-footer *{
            box-sizing: border-box;
        }

.aisitex-site-footer a{
            color: inherit;
            text-decoration: none;
        }

.aisitex-site-footer a{
            -webkit-tap-highlight-color: transparent;
        }

.aisitex-site-footer a:focus-visible{
            outline: 3px solid rgba(217, 104, 80, 0.48);
            outline-offset: 4px;
        }

.aisitex-site-footer .aisitex-shell{
            width: min(calc(100% - 48px), 1200px);
            margin: 0 auto;
        }

.aisitex-site-footer{
            padding: 28px 0 34px;
            background: #084b4a;
            color: #b9d0c8;
        }

.aisitex-site-footer .aisitex-footer-inner{
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

.aisitex-site-footer .aisitex-footer-brand{
            color: #ffffff;
            font-size: 15px;
            font-weight: 800;
        }

.aisitex-site-footer .aisitex-footer-copy{
            margin: 0;
            font-size: 12px;
        }

.aisitex-site-footer .aisitex-footer-nav{
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
        }

.aisitex-site-footer .aisitex-footer-nav a{
            font-size: 12px;
            transition: color 180ms ease;
        }

.aisitex-site-footer .aisitex-footer-nav a:hover{
            color: #ffffff;
        }

@media (max-width: 720px){.aisitex-site-footer .aisitex-shell{
                width: min(calc(100% - 40px), 1200px);
            }

.aisitex-site-footer .aisitex-footer-inner{
                align-items: flex-start;
                flex-direction: column;
            }}

@media (prefers-reduced-motion: reduce){.aisitex-site-footer, .aisitex-site-footer *, .aisitex-site-footer::before, .aisitex-site-footer *::before, .aisitex-site-footer::after, .aisitex-site-footer *::after{
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }}


/* Unified dark official visual system */
:root {
  color-scheme: dark;
  --aisitex-dark-bg: #0b1118;
  --aisitex-dark-surface: #111a24;
  --aisitex-dark-surface-raised: #172331;
  --aisitex-dark-line: #283544;
  --aisitex-dark-text: #e6edf3;
  --aisitex-dark-muted: #9aa8b7;
  --aisitex-dark-blue: #2563eb;
  --aisitex-dark-blue-hover: #3b82f6;
}
html, body {
  background: var(--aisitex-dark-bg) !important;
  color: var(--aisitex-dark-text) !important;
}
body {
  -webkit-font-smoothing: antialiased;
}
header, footer, nav,
[class*="site-header"], [class*="header-shell"], [class*="nav-shell"], [class*="header-inner"] {
  background-color: #0d141d !important;
  color: var(--aisitex-dark-text) !important;
  border-color: var(--aisitex-dark-line) !important;
}
main, section, article, aside, form, details, fieldset {
  border-color: var(--aisitex-dark-line) !important;
}
[class*="hero"], [class*="section"], [class*="card"], [class*="panel"],
[class*="strip"], [class*="shell"], [class*="route"], [class*="feature"],
[class*="step"], [class*="support"], [class*="content"], [class*="table"],
[class*="choice"], [class*="map"], [class*="result"], [class*="intro"],
[class*="closing"], [class*="next"], [class*="task"], [class*="path"],
[class*="comparison"], [class*="flow"], [class*="evidence"] {
  background-color: var(--aisitex-dark-surface) !important;
  color: var(--aisitex-dark-text) !important;
  border-color: var(--aisitex-dark-line) !important;
}
h1, h2, h3, h4, h5, h6 {
  color: #f5f7fa !important;
}
p, li, label, summary, dt, dd {
  color: #c8d1dc;
}
[class*="muted"], [class*="meta"], [class*="caption"], [class*="description"],
[class*="lead"], [class*="copy"], [class*="eyebrow"], [class*="kicker"], [class*="note"] {
  color: var(--aisitex-dark-muted) !important;
}
a {
  color: #bfdbfe;
}
main a:not([class*="primary"]):not([class*="submit"]):not([class*="cta"]):not([class*="button"]) {
  color: #93c5fd;
}
input, textarea, select {
  background: #0f1720 !important;
  color: #f3f4f6 !important;
  border-color: #334155 !important;
}
input::placeholder, textarea::placeholder {
  color: #718096 !important;
}
a[class*="primary"], button[class*="primary"],
[class*="submit"], [class*="cta"], .aisitex-register-cta {
  background: var(--aisitex-dark-blue) !important;
  color: #ffffff !important;
  border-color: var(--aisitex-dark-blue-hover) !important;
  box-shadow: 0 10px 24px rgba(37, 99, 235, .28) !important;
}
a[class*="primary"]:hover, button[class*="primary"]:hover,
[class*="submit"]:hover, [class*="cta"]:hover, .aisitex-register-cta:hover,
a[class*="primary"]:focus-visible, button[class*="primary"]:focus-visible,
[class*="submit"]:focus-visible, [class*="cta"]:focus-visible, .aisitex-register-cta:focus-visible {
  background: var(--aisitex-dark-blue-hover) !important;
}
a[class*="secondary"], button[class*="secondary"], [class*="ghost"], [class*="quiet"],
[class*="text-link"], [class*="secondary-link"] {
  background: var(--aisitex-dark-surface-raised) !important;
  color: #dbeafe !important;
  border-color: #3a4a5d !important;
}
button:not([class*="toggle"]):not([class*="menu"]):not([class*="nav"]):not([class*="visibility"]) {
  border-color: var(--aisitex-dark-line);
  color: #dbeafe;
}
hr {
  border-color: var(--aisitex-dark-line) !important;
}


/* Prominent registration entry point */
.aisitex-register-cta {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  min-height: 48px;
  padding: .8rem 1.35rem !important;
  border-radius: 8px;
  background: #2563eb !important;
  border: 1px solid #3b82f6 !important;
  color: #fff !important;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(37, 99, 235, .28) !important;
  text-decoration: none !important;
}
.aisitex-register-cta:hover,
.aisitex-register-cta:focus-visible {
  background: #3b82f6 !important;
  color: #fff !important;
  transform: translateY(-1px);
}
/* Navigation registration control sizing */
.aisitex-nav .aisitex-nav-register,.aisitex-main-nav .aisitex-nav-register,.aisitex-primary-nav .aisitex-nav-register,.aisitex-primary-menu .aisitex-nav-register{display:inline-flex!important;align-items:center;justify-content:center;min-height:38px!important;padding:7px 13px!important;border-radius:6px!important;font-size:14px!important;line-height:1.2!important;white-space:nowrap}
/* Shared official dark palette and accessible registration controls */
:root{color-scheme:dark;--aisitex-dark-bg:#0b1118;--aisitex-dark-surface:#111a24;--aisitex-dark-raised:#172331;--aisitex-dark-line:#283544;--aisitex-dark-text:#e6edf3;--aisitex-dark-muted:#9aa8b7;--aisitex-dark-blue:#2563eb;--aisitex-dark-blue-hover:#3b82f6}
html,body{background:#0b1118!important;color:#e6edf3!important}
header,footer,nav,[class*="site-header"],[class*="nav-shell"],[class*="header-shell"],[class*="header-inner"]{background:#0d141d!important;color:#e6edf3!important;border-color:#283544!important}
main,section,article,aside,form,details,fieldset,[class*="hero"],[class*="section"],[class*="card"],[class*="panel"],[class*="strip"],[class*="route"],[class*="feature"],[class*="step"],[class*="support"],[class*="content"],[class*="choice"],[class*="map"],[class*="result"],[class*="intro"],[class*="closing"],[class*="next"],[class*="task"],[class*="path"],[class*="comparison"],[class*="flow"],[class*="evidence"],[class*="frame"],[class*="visual"],[class*="shot"]{background-color:#111a24!important;color:#e6edf3!important;border-color:#283544!important}
h1,h2,h3,h4,h5,h6{color:#f5f7fa!important}p,li,label,summary,dt,dd{color:#c8d1dc}[class*="muted"],[class*="description"],[class*="lead"],[class*="copy"],[class*="note"],[class*="caption"]{color:#9aa8b7!important}
input,textarea,select{background:#0f1720!important;color:#f3f4f6!important;border-color:#334155!important}input::placeholder,textarea::placeholder{color:#718096!important}
a[class*="primary"],button[class*="primary"],[class*="submit"],[class*="cta"],.aisitex-register-cta{background:#2563eb!important;color:#fff!important;border-color:#3b82f6!important;box-shadow:0 10px 24px #2563eb47!important}
a[class*="primary"]:hover,button[class*="primary"]:hover,[class*="submit"]:hover,[class*="cta"]:hover,.aisitex-register-cta:hover{background:#3b82f6!important}
a[class*="secondary"],button[class*="secondary"],[class*="ghost"],[class*="quiet"],[class*="text-link"],[class*="secondary-link"]{background:#172331!important;color:#dbeafe!important;border-color:#3a4a5d!important}
.aisitex-nav-register{display:inline-flex!important;align-items:center;justify-content:center;min-height:38px!important;padding:7px 13px!important;border-radius:6px!important;font-size:14px!important;line-height:1.2!important;white-space:nowrap;color:#dbeafe!important;background:#172331!important;border:1px solid #3a4a5d}.aisitex-nav-register:hover,.aisitex-nav-register.active{background:#2563eb!important;color:#fff!important}
.aisitex-register-cta{display:inline-flex!important;align-items:center;justify-content:center;min-height:48px;padding:12px 22px!important;border-radius:7px;font-weight:750;text-decoration:none!important}