:root {
      --aisitex-paper: #f4f0e8;
      --aisitex-paper-deep: #eae4d9;
      --aisitex-ink: #20242b;
      --aisitex-muted: #766f66;
      --aisitex-line: #d5cec2;
      --aisitex-blue: #175ce5;
      --aisitex-blue-dark: #1048b8;
      --aisitex-white: #fffdf8;
      --aisitex-max: 1240px;
      --aisitex-radius: 5px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      background: var(--aisitex-paper);
      color: var(--aisitex-ink);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    body.is-menu-open {
      overflow: hidden;
    }

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

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

    button:focus-visible,
    a:focus-visible {
      outline: 3px solid rgba(23, 92, 229, .35);
      outline-offset: 4px;
    }

    .aisitex-site-header {
      position: relative;
      z-index: 20;
      border-bottom: 1px solid var(--aisitex-line);
      background: rgba(244, 240, 232, .94);
    }

    .aisitex-header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: min(calc(100% - 48px), var(--aisitex-max));
      min-height: 82px;
      margin: 0 auto;
      gap: 32px;
    }

    .aisitex-wordmark {
      display: inline-flex;
      align-items: baseline;
      gap: 10px;
      color: var(--aisitex-ink);
      white-space: nowrap;
    }

    .aisitex-wordmark-main {
      font-size: 25px;
      font-weight: 800;
      letter-spacing: .12em;
      line-height: 1;
    }

    .aisitex-wordmark-note {
      color: var(--aisitex-muted);
      font-size: 11px;
      letter-spacing: .16em;
      line-height: 1;
    }

    .aisitex-nav-toggle {
      display: none;
      width: 46px;
      height: 44px;
      border: 1px solid var(--aisitex-line);
      border-radius: var(--aisitex-radius);
      background: transparent;
      color: var(--aisitex-ink);
      cursor: pointer;
    }

    .aisitex-nav-toggle-icon,
    .aisitex-nav-toggle-icon::before,
    .aisitex-nav-toggle-icon::after {
      display: block;
      width: 18px;
      height: 1.5px;
      margin: 0 auto;
      background: currentColor;
      content: "";
      transition: transform .22s ease;
    }

    .aisitex-nav-toggle-icon::before {
      transform: translateY(-6px);
    }

    .aisitex-nav-toggle-icon::after {
      transform: translateY(4.5px);
    }

    .aisitex-nav-toggle.is-open .aisitex-nav-toggle-icon {
      background: transparent;
    }

    .aisitex-nav-toggle.is-open .aisitex-nav-toggle-icon::before {
      transform: translateY(0) rotate(45deg);
    }

    .aisitex-nav-toggle.is-open .aisitex-nav-toggle-icon::after {
      transform: translateY(-1.5px) rotate(-45deg);
    }

    .aisitex-site-nav {
      display: flex;
      align-items: center;
      gap: 30px;
    }

    .aisitex-nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      min-height: 44px;
      color: var(--aisitex-muted);
      font-size: 14px;
      font-weight: 600;
      letter-spacing: .04em;
      transition: color .2s ease;
    }

    .aisitex-nav-link::after {
      position: absolute;
      right: 0;
      bottom: 5px;
      left: 0;
      height: 2px;
      background: var(--aisitex-blue);
      content: "";
      transform: scaleX(0);
      transform-origin: right;
      transition: transform .22s ease;
    }

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

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

    .aisitex-main {
      overflow: hidden;
    }

    .aisitex-action-band {
      width: min(calc(100% - 48px), var(--aisitex-max));
      margin: 24px auto 0;
      background: var(--aisitex-blue);
      color: var(--aisitex-white);
    }

    .aisitex-action-band-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      min-height: 92px;
      padding: 18px 28px;
    }

    .aisitex-action-band-copy {
      display: flex;
      align-items: baseline;
      flex-wrap: wrap;
      gap: 16px 24px;
    }

    .aisitex-action-band-label {
      color: rgba(255, 255, 255, .7);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: .16em;
      text-transform: uppercase;
    }

    .aisitex-action-band-title {
      margin: 0;
      font-size: 18px;
      font-weight: 650;
      letter-spacing: .02em;
      line-height: 1.4;
    }

    .aisitex-action-band-actions {
      display: flex;
      align-items: center;
      flex-shrink: 0;
      gap: 22px;
    }

    .aisitex-primary-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 0 19px;
      border: 1px solid rgba(255, 255, 255, .82);
      border-radius: var(--aisitex-radius);
      background: var(--aisitex-white);
      color: var(--aisitex-blue-dark);
      font-size: 14px;
      font-weight: 750;
      transition: background .2s ease, color .2s ease, transform .2s ease;
    }

    .aisitex-primary-link:hover {
      background: #dce7ff;
      transform: translateY(-2px);
    }

    .aisitex-text-link {
      display: inline-flex;
      align-items: center;
      min-height: 44px;
      color: inherit;
      font-size: 14px;
      font-weight: 650;
      white-space: nowrap;
    }

    .aisitex-text-link::after {
      margin-left: 8px;
      content: "↗";
      font-size: 17px;
      transition: transform .2s ease;
    }

    .aisitex-text-link:hover::after {
      transform: translate(3px, -2px);
    }

    .aisitex-hero {
      width: min(calc(100% - 48px), var(--aisitex-max));
      margin: 0 auto;
      padding: 92px 0 112px;
    }

    .aisitex-hero-grid {
      display: grid;
      grid-template-columns: minmax(0, .86fr) minmax(450px, 1.14fr);
      align-items: center;
      gap: clamp(42px, 7vw, 110px);
    }

    .aisitex-hero-copy {
      max-width: 570px;
      animation: aisitex-fade-up .7s .12s both;
    }

    .aisitex-eyebrow {
      display: flex;
      align-items: center;
      gap: 11px;
      margin: 0 0 24px;
      color: var(--aisitex-blue);
      font-size: 12px;
      font-weight: 750;
      letter-spacing: .15em;
    }

    .aisitex-eyebrow::before {
      width: 28px;
      height: 2px;
      background: currentColor;
      content: "";
    }

    .aisitex-hero-title {
      max-width: 520px;
      margin: 0;
      font-size: clamp(42px, 5vw, 72px);
      font-weight: 760;
      letter-spacing: .035em;
      line-height: 1.12;
    }

    .aisitex-hero-lead {
      max-width: 500px;
      margin: 28px 0 0;
      color: var(--aisitex-muted);
      font-size: 18px;
      line-height: 1.9;
    }

    .aisitex-hero-detail {
      display: flex;
      align-items: center;
      gap: 17px;
      margin-top: 38px;
      color: var(--aisitex-ink);
      font-size: 14px;
      font-weight: 650;
    }

    .aisitex-hero-detail-line {
      width: 42px;
      height: 1px;
      background: var(--aisitex-line);
    }

    .aisitex-hero-media {
      position: relative;
      margin-right: -80px;
      animation: aisitex-fade-up .75s .24s both;
    }

    .aisitex-hero-media::before {
      position: absolute;
      top: 32px;
      right: 34px;
      bottom: -26px;
      left: -26px;
      border: 1px solid var(--aisitex-line);
      content: "";
      pointer-events: none;
    }

    .aisitex-product-image {
      position: relative;
      z-index: 1;
      display: block;
      width: 100%;
      height: auto;
      border: 1px solid rgba(32, 36, 43, .12);
      box-shadow: 18px 20px 0 rgba(32, 36, 43, .055);
    }

    .aisitex-image-note {
      position: absolute;
      z-index: 2;
      right: 18px;
      bottom: -22px;
      max-width: 200px;
      padding: 9px 12px;
      background: var(--aisitex-paper);
      color: var(--aisitex-muted);
      font-size: 11px;
      line-height: 1.5;
    }

    .aisitex-scene {
      border-top: 1px solid var(--aisitex-line);
      background: var(--aisitex-white);
    }

    .aisitex-scene-inner {
      display: grid;
      grid-template-columns: minmax(230px, .66fr) minmax(0, 1.34fr);
      gap: clamp(44px, 9vw, 140px);
      width: min(calc(100% - 48px), 1100px);
      margin: 0 auto;
      padding: 108px 0 124px;
    }

    .aisitex-section-kicker {
      margin: 0 0 22px;
      color: var(--aisitex-blue);
      font-size: 12px;
      font-weight: 750;
      letter-spacing: .14em;
    }

    .aisitex-scene-title,
    .aisitex-evidence-title,
    .aisitex-route-title {
      margin: 0;
      font-size: clamp(30px, 3.2vw, 46px);
      font-weight: 730;
      letter-spacing: .025em;
      line-height: 1.25;
    }

    .aisitex-scene-copy {
      max-width: 630px;
      margin: 0;
      color: var(--aisitex-muted);
      font-size: 17px;
      line-height: 1.95;
    }

    .aisitex-scene-copy strong {
      color: var(--aisitex-ink);
      font-weight: 700;
    }

    .aisitex-scene-list {
      display: grid;
      gap: 0;
      margin: 46px 0 0;
      padding: 0;
      list-style: none;
      border-top: 1px solid var(--aisitex-line);
    }

    .aisitex-scene-item {
      display: grid;
      grid-template-columns: 120px minmax(0, 1fr);
      gap: 22px;
      padding: 22px 0;
      border-bottom: 1px solid var(--aisitex-line);
    }

    .aisitex-scene-item-label {
      color: var(--aisitex-blue);
      font-size: 13px;
      font-weight: 750;
      letter-spacing: .08em;
    }

    .aisitex-scene-item-text {
      margin: 0;
      color: var(--aisitex-muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .aisitex-evidence {
      width: min(calc(100% - 48px), var(--aisitex-max));
      margin: 0 auto;
      padding: 112px 0 118px;
    }

    .aisitex-evidence-heading {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 40px;
      padding-bottom: 46px;
      border-bottom: 1px solid var(--aisitex-line);
    }

    .aisitex-evidence-intro {
      max-width: 480px;
      margin: 0;
      color: var(--aisitex-muted);
      font-size: 15px;
      line-height: 1.85;
    }

    .aisitex-evidence-list {
      display: grid;
      grid-template-columns: 1fr 1.12fr 1fr;
      gap: 0;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .aisitex-evidence-item {
      min-height: 230px;
      padding: 34px 34px 20px 0;
      border-bottom: 1px solid var(--aisitex-line);
    }

    .aisitex-evidence-item + .aisitex-evidence-item {
      padding-left: 34px;
      border-left: 1px solid var(--aisitex-line);
    }

    .aisitex-evidence-item:nth-child(2) {
      padding-right: 48px;
    }

    .aisitex-evidence-number {
      display: block;
      margin-bottom: 30px;
      color: var(--aisitex-blue);
      font-size: 13px;
      font-weight: 750;
      letter-spacing: .12em;
    }

    .aisitex-evidence-item-title {
      margin: 0 0 14px;
      font-size: 20px;
      font-weight: 700;
      line-height: 1.35;
    }

    .aisitex-evidence-item-text {
      max-width: 270px;
      margin: 0;
      color: var(--aisitex-muted);
      font-size: 14px;
      line-height: 1.85;
    }

    .aisitex-route {
      border-top: 1px solid var(--aisitex-line);
      background: var(--aisitex-paper-deep);
    }

    .aisitex-route-inner {
      display: grid;
      grid-template-columns: minmax(250px, .75fr) minmax(0, 1.25fr);
      gap: clamp(46px, 9vw, 140px);
      width: min(calc(100% - 48px), 1100px);
      margin: 0 auto;
      padding: 108px 0 116px;
    }

    .aisitex-route-summary {
      max-width: 320px;
      margin: 27px 0 0;
      color: var(--aisitex-muted);
      font-size: 16px;
      line-height: 1.85;
    }

    .aisitex-route-list {
      margin: 0;
      padding: 0;
      list-style: none;
      border-top: 1px solid var(--aisitex-line);
    }

    .aisitex-route-item {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      align-items: center;
      gap: 25px;
      padding: 25px 0;
      border-bottom: 1px solid var(--aisitex-line);
    }

    .aisitex-route-item-title {
      margin: 0 0 5px;
      font-size: 19px;
      font-weight: 700;
    }

    .aisitex-route-item-text {
      max-width: 470px;
      margin: 0;
      color: var(--aisitex-muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .aisitex-route-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 43px;
      padding: 0 14px;
      border-bottom: 1px solid var(--aisitex-blue);
      color: var(--aisitex-blue-dark);
      font-size: 14px;
      font-weight: 700;
      white-space: nowrap;
      transition: color .2s ease, border-color .2s ease;
    }

    .aisitex-route-link::after {
      margin-left: 8px;
      content: "↗";
      font-size: 17px;
    }

    .aisitex-route-link:hover {
      border-color: var(--aisitex-ink);
      color: var(--aisitex-ink);
    }

    .aisitex-site-footer {
      background: var(--aisitex-ink);
      color: var(--aisitex-white);
    }

    .aisitex-footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
      width: min(calc(100% - 48px), var(--aisitex-max));
      min-height: 100px;
      margin: 0 auto;
    }

    .aisitex-footer-brand {
      font-size: 16px;
      font-weight: 750;
      letter-spacing: .12em;
    }

    .aisitex-footer-note {
      margin: 0;
      color: rgba(255, 255, 255, .58);
      font-size: 12px;
    }

    @keyframes aisitex-fade-up {
      from {
        opacity: 0;
        transform: translateY(18px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

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

      *,
      *::before,
      *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
      }
    }

    @media (max-width: 980px) {
      .aisitex-header-inner {
        min-height: 72px;
      }

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

      .aisitex-site-nav {
        position: absolute;
        top: 72px;
        right: 24px;
        left: 24px;
        display: none;
        align-items: stretch;
        gap: 0;
        padding: 8px 18px;
        border: 1px solid var(--aisitex-line);
        background: var(--aisitex-paper);
        box-shadow: 0 14px 30px rgba(32, 36, 43, .08);
      }

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

      .aisitex-site-nav.is-open {
        display: flex;
        flex-direction: column;
      }

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

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

      .aisitex-nav-link::after {
        right: auto;
        bottom: 0;
        width: 26px;
      }

      .aisitex-hero-grid {
        grid-template-columns: minmax(0, 1fr) minmax(360px, 1fr);
        gap: 42px;
      }

      .aisitex-hero-media {
        margin-right: -30px;
      }

      .aisitex-scene-inner,
      .aisitex-route-inner {
        gap: 55px;
      }
    }

    @media (max-width: 760px) {
      .aisitex-header-inner,
      .aisitex-action-band,
      .aisitex-hero,
      .aisitex-evidence,
      .aisitex-footer-inner {
        width: min(calc(100% - 36px), var(--aisitex-max));
      }

      .aisitex-action-band {
        margin-top: 18px;
      }

      .aisitex-action-band-inner {
        align-items: flex-start;
        flex-direction: column;
        gap: 19px;
        padding: 22px 20px;
      }

      .aisitex-action-band-actions {
        width: 100%;
        justify-content: space-between;
      }

      .aisitex-primary-link {
        flex: 1;
      }

      .aisitex-hero {
        padding: 65px 0 82px;
      }

      .aisitex-hero-grid {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 46px;
      }

      .aisitex-hero-title {
        max-width: 430px;
        font-size: clamp(39px, 11vw, 58px);
      }

      .aisitex-hero-lead {
        margin-top: 22px;
        font-size: 16px;
      }

      .aisitex-hero-media {
        width: calc(100% - 12px);
        margin: 0 0 0 12px;
      }

      .aisitex-hero-media::before {
        top: 20px;
        right: 18px;
        bottom: -17px;
        left: -14px;
      }

      .aisitex-image-note {
        right: 8px;
        bottom: -15px;
        max-width: 165px;
        font-size: 10px;
      }

      .aisitex-scene-inner,
      .aisitex-route-inner {
        display: block;
        width: min(calc(100% - 36px), 680px);
        padding: 76px 0 82px;
      }

      .aisitex-scene-heading,
      .aisitex-route-heading {
        margin-bottom: 46px;
      }

      .aisitex-scene-title,
      .aisitex-evidence-title,
      .aisitex-route-title {
        font-size: 34px;
      }

      .aisitex-scene-copy {
        font-size: 16px;
      }

      .aisitex-scene-list {
        margin-top: 34px;
      }

      .aisitex-scene-item {
        grid-template-columns: 92px minmax(0, 1fr);
        gap: 14px;
      }

      .aisitex-evidence {
        padding: 76px 0 82px;
      }

      .aisitex-evidence-heading {
        display: block;
        padding-bottom: 32px;
      }

      .aisitex-evidence-intro {
        margin-top: 25px;
      }

      .aisitex-evidence-list {
        display: block;
      }

      .aisitex-evidence-item,
      .aisitex-evidence-item + .aisitex-evidence-item,
      .aisitex-evidence-item:nth-child(2) {
        min-height: 0;
        padding: 28px 0;
        border-right: 0;
        border-left: 0;
      }

      .aisitex-evidence-number {
        margin-bottom: 17px;
      }

      .aisitex-evidence-item-text {
        max-width: none;
      }

      .aisitex-route-summary {
        max-width: none;
      }

      .aisitex-route-list {
        margin-top: 0;
      }

      .aisitex-route-item {
        grid-template-columns: minmax(0, 1fr);
        gap: 14px;
        padding: 22px 0;
      }

      .aisitex-route-link {
        justify-self: start;
      }

      .aisitex-footer-inner {
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        gap: 8px;
        min-height: 112px;
      }
    }

    @media (max-width: 430px) {
      .aisitex-action-band-actions {
        align-items: stretch;
        flex-direction: column;
        gap: 5px;
      }

      .aisitex-action-band-actions .aisitex-text-link {
        justify-content: center;
      }

      .aisitex-scene-item {
        display: block;
      }

      .aisitex-scene-item-label {
        display: block;
        margin-bottom: 7px;
      }

      .aisitex-wordmark-note {
        display: none;
      }
    }

.aisitex-site-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: #20242b;
}

.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(23, 92, 229, .35);
      outline-offset: 4px;
    }

.aisitex-site-header{
      position: relative;
      z-index: 20;
      border-bottom: 1px solid #d5cec2;
      background: rgba(244, 240, 232, .94);
    }

.aisitex-site-header .aisitex-header-inner{
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: min(calc(100% - 48px), 1240px);
      min-height: 82px;
      margin: 0 auto;
      gap: 32px;
    }

.aisitex-site-header .aisitex-wordmark{
      display: inline-flex;
      align-items: baseline;
      gap: 10px;
      color: #20242b;
      white-space: nowrap;
    }

.aisitex-site-header .aisitex-wordmark-main{
      font-size: 25px;
      font-weight: 800;
      letter-spacing: .12em;
      line-height: 1;
    }

.aisitex-site-header .aisitex-wordmark-note{
      color: #766f66;
      font-size: 11px;
      letter-spacing: .16em;
      line-height: 1;
    }

.aisitex-site-header .aisitex-nav-toggle{
      display: none;
      width: 46px;
      height: 44px;
      border: 1px solid #d5cec2;
      border-radius: 5px;
      background: transparent;
      color: #20242b;
      cursor: pointer;
    }

.aisitex-site-header .aisitex-nav-toggle-icon, .aisitex-site-header .aisitex-nav-toggle-icon::before, .aisitex-site-header .aisitex-nav-toggle-icon::after{
      display: block;
      width: 18px;
      height: 1.5px;
      margin: 0 auto;
      background: currentColor;
      content: "";
      transition: transform .22s ease;
    }

.aisitex-site-header .aisitex-nav-toggle-icon::before{
      transform: translateY(-6px);
    }

.aisitex-site-header .aisitex-nav-toggle-icon::after{
      transform: translateY(4.5px);
    }

.aisitex-site-header .aisitex-nav-toggle.is-open .aisitex-nav-toggle-icon{
      background: transparent;
    }

.aisitex-site-header .aisitex-nav-toggle.is-open .aisitex-nav-toggle-icon::before{
      transform: translateY(0) rotate(45deg);
    }

.aisitex-site-header .aisitex-nav-toggle.is-open .aisitex-nav-toggle-icon::after{
      transform: translateY(-1.5px) rotate(-45deg);
    }

.aisitex-site-header .aisitex-site-nav{
      display: flex;
      align-items: center;
      gap: 30px;
    }

.aisitex-site-header .aisitex-nav-link{
      position: relative;
      display: inline-flex;
      align-items: center;
      min-height: 44px;
      color: #766f66;
      font-size: 14px;
      font-weight: 600;
      letter-spacing: .04em;
      transition: color .2s ease;
    }

.aisitex-site-header .aisitex-nav-link::after{
      position: absolute;
      right: 0;
      bottom: 5px;
      left: 0;
      height: 2px;
      background: #175ce5;
      content: "";
      transform: scaleX(0);
      transform-origin: right;
      transition: transform .22s ease;
    }

.aisitex-site-header .aisitex-nav-link:hover, .aisitex-site-header .aisitex-nav-link.active{
      color: #20242b;
    }

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

@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: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
      }}

@media (max-width: 980px){.aisitex-site-header .aisitex-header-inner{
        min-height: 72px;
      }

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

.aisitex-site-header .aisitex-site-nav{
        position: absolute;
        top: 72px;
        right: 24px;
        left: 24px;
        display: none;
        align-items: stretch;
        gap: 0;
        padding: 8px 18px;
        border: 1px solid #d5cec2;
        background: #f4f0e8;
        box-shadow: 0 14px 30px rgba(32, 36, 43, .08);
      }

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

.aisitex-site-header .aisitex-site-nav.is-open{
        display: flex;
        flex-direction: column;
      }

.aisitex-site-header .aisitex-nav-link{
        min-height: 52px;
        border-bottom: 1px solid #d5cec2;
      }

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

.aisitex-site-header .aisitex-nav-link::after{
        right: auto;
        bottom: 0;
        width: 26px;
      }}

@media (max-width: 760px){.aisitex-site-header .aisitex-header-inner{
        width: min(calc(100% - 36px), 1240px);
      }}

@media (max-width: 430px){.aisitex-site-header .aisitex-wordmark-note{
        display: none;
      }}

.aisitex-site-footer {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: #20242b;
}

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

.aisitex-site-footer{
      background: #20242b;
      color: #fffdf8;
    }

.aisitex-site-footer .aisitex-footer-inner{
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
      width: min(calc(100% - 48px), 1240px);
      min-height: 100px;
      margin: 0 auto;
    }

.aisitex-site-footer .aisitex-footer-brand{
      font-size: 16px;
      font-weight: 750;
      letter-spacing: .12em;
    }

.aisitex-site-footer .aisitex-footer-note{
      margin: 0;
      color: rgba(255, 255, 255, .58);
      font-size: 12px;
    }

@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: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
      }}

@media (max-width: 760px){.aisitex-site-footer .aisitex-footer-inner{
        width: min(calc(100% - 36px), 1240px);
      }

.aisitex-site-footer .aisitex-footer-inner{
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        gap: 8px;
        min-height: 112px;
      }}


/* 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);
}
/* Unified dark official visual system */
: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}
[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:#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}.aisitex-muted,[class*="muted"],[class*="description"],[class*="lead"],[class*="copy"],[class*="note"],[class*="caption"]{color:#9aa8b7!important}
a{color:#bfdbfe}input,textarea,select{background:#0f1720!important;color:#f3f4f6!important;border-color:#334155!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{color:#dbeafe!important;background:#172331!important;border:1px solid #3a4a5d;border-radius:6px}.aisitex-nav-register:hover,.aisitex-nav-register.active{color:#fff!important;background:#2563eb!important}
/* 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}