:root:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      --aisitex-paper: #f5f3ee;
      --aisitex-panel: #eeece6;
      --aisitex-ink: #202421;
      --aisitex-muted: #6b706b;
      --aisitex-line: #d9d7d0;
      --aisitex-orange: #e64d24;
      --aisitex-teal: #157c78;
      --aisitex-white: #fffdfa;
    }
*:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      box-sizing: border-box;
    }
html:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      background: var(--aisitex-paper);
      scroll-behavior: smooth;
    }
body:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      margin: 0;
      background: var(--aisitex-paper);
      color: var(--aisitex-ink);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      font-size: 16px;
      line-height: 1.7;
    }
a:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      color: inherit;
      text-decoration: none;
    }
button:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)), a:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      -webkit-tap-highlight-color: transparent;
    }
button:focus-visible:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)), a:focus-visible:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      outline: 3px solid rgba(21, 124, 120, .35);
      outline-offset: 4px;
    }
.aisitex-shell:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      width: min(1180px, calc(100% - 48px));
      margin: 0 auto;
    }
.aisitex-download-main:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      overflow: hidden;
    }
.aisitex-download-intro:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      padding: 20px 0 0;
    }
.aisitex-signal-band:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      min-height: 48px;
      padding: 0 18px;
      border-left: 4px solid var(--aisitex-orange);
      background: var(--aisitex-panel);
      color: var(--aisitex-muted);
      font-size: 13px;
      letter-spacing: .02em;
      animation: aisitex-band-in .55s ease both;
    }
.aisitex-signal-band strong:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      color: var(--aisitex-orange);
      font-weight: 800;
    }
.aisitex-signal-band span:last-child:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      color: var(--aisitex-teal);
    }
@keyframes aisitex-band-in {
      from {
        opacity: 0;
        transform: translateX(-16px);
      }
      to {
        opacity: 1;
        transform: translateX(0);
      }
    }
.aisitex-download-hero:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
      gap: clamp(44px, 7vw, 100px);
      align-items: center;
      padding: 72px 0 92px;
    }
.aisitex-hero-copy:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      max-width: 620px;
    }
.aisitex-kicker:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      margin: 0 0 17px;
      color: var(--aisitex-teal);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .08em;
    }
.aisitex-hero-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      max-width: 570px;
      margin: 0;
      font-size: clamp(38px, 5vw, 66px);
      line-height: 1.14;
      letter-spacing: 0;
      font-weight: 800;
    }
.aisitex-hero-title em:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      color: var(--aisitex-orange);
      font-style: normal;
    }
.aisitex-hero-lead:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      max-width: 520px;
      margin: 25px 0 32px;
      color: var(--aisitex-muted);
      font-size: 18px;
      line-height: 1.85;
    }
.aisitex-download-panel:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      max-width: 570px;
      padding-top: 24px;
      border-top: 1px solid var(--aisitex-ink);
    }
.aisitex-panel-label:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      margin: 0 0 12px;
      color: var(--aisitex-muted);
      font-size: 13px;
      font-weight: 700;
    }
.aisitex-platform-switch:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      display: inline-flex;
      align-items: center;
      padding: 4px;
      border: 1px solid var(--aisitex-line);
      background: var(--aisitex-white);
    }
.aisitex-platform-option:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      min-width: 104px;
      padding: 9px 18px;
      border: 0;
      background: transparent;
      color: var(--aisitex-muted);
      font: inherit;
      font-size: 14px;
      font-weight: 800;
      cursor: pointer;
      transition: color .2s ease, background .2s ease;
    }
.aisitex-platform-option[aria-pressed="true"]:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      background: var(--aisitex-ink);
      color: var(--aisitex-white);
    }
.aisitex-platform-option:hover:not([aria-pressed="true"]):not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      color: var(--aisitex-orange);
    }
.aisitex-download-actions:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
      margin-top: 21px;
    }
.aisitex-primary-download:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 11px;
      min-height: 52px;
      padding: 0 22px;
      background: var(--aisitex-orange);
      color: #fff;
      font-size: 15px;
      font-weight: 800;
      transition: background .2s ease, transform .2s ease;
    }
.aisitex-primary-download svg:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      width: 19px;
      height: 19px;
    }
.aisitex-primary-download:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      background: #c9401d;
      transform: translateY(-2px);
    }
.aisitex-secondary-link:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      color: var(--aisitex-teal);
      font-size: 14px;
      font-weight: 800;
      border-bottom: 1px solid currentColor;
    }
.aisitex-platform-status:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      min-height: 28px;
      margin: 13px 0 0;
      color: var(--aisitex-muted);
      font-size: 13px;
    }
.aisitex-hero-visual:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      position: relative;
      align-self: stretch;
      display: flex;
      align-items: center;
      min-height: 430px;
    }
.aisitex-visual-frame:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      position: relative;
      width: 100%;
      padding: 17px;
      border: 1px solid var(--aisitex-line);
      background: var(--aisitex-panel);
      transform: translateY(12px);
      animation: aisitex-visual-in .7s .15s ease both;
    }
.aisitex-visual-frame:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::before {
      position: absolute;
      top: -13px;
      right: 25px;
      width: 74px;
      height: 4px;
      background: var(--aisitex-orange);
      content: "";
    }
.aisitex-visual-frame img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      display: block;
      width: 100%;
      height: auto;
    }
.aisitex-visual-note:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      display: flex;
      justify-content: space-between;
      gap: 20px;
      padding: 13px 2px 0;
      color: var(--aisitex-muted);
      font-size: 12px;
    }
.aisitex-visual-note strong:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      color: var(--aisitex-ink);
    }
@keyframes aisitex-visual-in {
      from {
        opacity: 0;
        transform: translate(18px, 12px);
      }
      to {
        opacity: 1;
        transform: translate(0, 12px);
      }
    }
.aisitex-path-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      border-top: 1px solid var(--aisitex-line);
      padding: 76px 0 88px;
    }
.aisitex-section-heading:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      display: grid;
      grid-template-columns: minmax(210px, .72fr) minmax(0, 1fr);
      gap: 60px;
      margin-bottom: 48px;
    }
.aisitex-section-index:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      margin: 5px 0 0;
      color: var(--aisitex-orange);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .08em;
    }
.aisitex-section-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      max-width: 680px;
      margin: 0;
      font-size: clamp(28px, 3.5vw, 43px);
      line-height: 1.25;
      font-weight: 800;
    }
.aisitex-section-summary:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      max-width: 620px;
      margin: 15px 0 0;
      color: var(--aisitex-muted);
      font-size: 16px;
    }
.aisitex-selection-path:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      position: relative;
      max-width: 880px;
      margin-left: 24%;
      border-left: 1px solid var(--aisitex-line);
    }
.aisitex-selection-row:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      position: relative;
      display: grid;
      grid-template-columns: 130px minmax(0, 1fr);
      gap: 30px;
      padding: 24px 0 24px 34px;
    }
.aisitex-selection-row:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::before {
      position: absolute;
      top: 34px;
      left: -5px;
      width: 9px;
      height: 9px;
      border: 2px solid var(--aisitex-orange);
      background: var(--aisitex-paper);
      content: "";
    }
.aisitex-selection-row + .aisitex-selection-row:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      border-top: 1px solid var(--aisitex-line);
    }
.aisitex-selection-name:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      margin: 0;
      font-size: 20px;
      font-weight: 800;
    }
.aisitex-selection-detail:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      margin: 0;
      color: var(--aisitex-muted);
      font-size: 15px;
    }
.aisitex-after-download:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      background: var(--aisitex-ink);
      color: var(--aisitex-white);
      padding: 78px 0 84px;
    }
.aisitex-after-download .aisitex-section-index:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      color: #f27a53;
    }
.aisitex-after-download .aisitex-section-summary:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      color: #bfc4be;
    }
.aisitex-after-download .aisitex-section-heading:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      margin-bottom: 42px;
    }
.aisitex-step-list:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      max-width: 890px;
      margin-left: 24%;
    }
.aisitex-step:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      display: grid;
      grid-template-columns: 82px minmax(0, 1fr);
      gap: 28px;
      padding: 24px 0;
      border-top: 1px solid rgba(255, 255, 255, .18);
    }
.aisitex-step:last-child:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      border-bottom: 1px solid rgba(255, 255, 255, .18);
    }
.aisitex-step-number:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      color: #f27a53;
      font-size: 14px;
      font-weight: 800;
      letter-spacing: .06em;
    }
.aisitex-step-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      margin: 0 0 5px;
      font-size: 19px;
      font-weight: 800;
    }
.aisitex-step-description:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      max-width: 610px;
      margin: 0;
      color: #bfc4be;
      font-size: 14px;
    }
.aisitex-help-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      padding: 78px 0 100px;
    }
.aisitex-help-layout:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      display: grid;
      grid-template-columns: minmax(200px, .72fr) minmax(0, 1fr);
      gap: 60px;
    }
.aisitex-help-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      margin: 0;
      font-size: clamp(28px, 3.2vw, 40px);
      line-height: 1.25;
      font-weight: 800;
    }
.aisitex-help-copy:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      max-width: 280px;
      margin: 16px 0 0;
      color: var(--aisitex-muted);
      font-size: 14px;
    }
.aisitex-help-list:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      border-top: 1px solid var(--aisitex-ink);
    }
.aisitex-help-item:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      padding: 22px 0;
      border-bottom: 1px solid var(--aisitex-line);
    }
.aisitex-help-question:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      margin: 0 0 7px;
      color: var(--aisitex-ink);
      font-size: 17px;
      font-weight: 800;
    }
.aisitex-help-answer:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      max-width: 680px;
      margin: 0;
      color: var(--aisitex-muted);
      font-size: 14px;
    }
.aisitex-help-action:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      margin-top: 30px;
    }
.aisitex-footer-nav:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      display: flex;
      flex-wrap: wrap;
      gap: 22px;
    }
.aisitex-footer-nav a:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
      color: var(--aisitex-orange);
    }
@media (max-width: 820px) {.aisitex-shell:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        width: min(100% - 32px, 680px);
      }
.aisitex-nav[hidden]:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        display: none;
      }
.aisitex-download-hero:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        grid-template-columns: 1fr;
        gap: 44px;
        padding: 55px 0 66px;
      }
.aisitex-hero-visual:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        min-height: 0;
      }
.aisitex-visual-frame:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        max-width: 550px;
      }
.aisitex-section-heading:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)), .aisitex-help-layout:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        grid-template-columns: 1fr;
        gap: 20px;
      }
.aisitex-section-heading:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        margin-bottom: 30px;
      }
.aisitex-selection-path:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)), .aisitex-step-list:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        margin-left: 0;
      }
.aisitex-help-copy:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        max-width: 520px;
        margin-top: 0;
      }}
@media (max-width: 520px) {.aisitex-shell:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        width: calc(100% - 30px);
      }
.aisitex-signal-band:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        align-items: flex-start;
        flex-direction: column;
        gap: 0;
        padding: 8px 14px;
      }
.aisitex-signal-band span:last-child:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        display: none;
      }
.aisitex-hero-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        font-size: 39px;
      }
.aisitex-hero-lead:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        font-size: 16px;
      }
.aisitex-download-actions:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        align-items: stretch;
        flex-direction: column;
        gap: 15px;
      }
.aisitex-primary-download:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        width: 100%;
      }
.aisitex-selection-row:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        grid-template-columns: 1fr;
        gap: 5px;
        padding-left: 24px;
      }
.aisitex-step:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        grid-template-columns: 56px minmax(0, 1fr);
        gap: 16px;
      }
.aisitex-footer-nav:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        gap: 14px;
      }}
@media (prefers-reduced-motion: reduce) {html:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
        scroll-behavior: auto;
      }
*:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)), 
      *:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::before, 
      *:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
      }}

.aisitex-header {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: #202421;
}

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

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

.aisitex-header a:focus-visible{
      outline: 3px solid #157c78;
      outline-offset: 4px;
    }

.aisitex-header .aisitex-shell{
      width: min(1240px, calc(100% - 64px));
      margin-inline: auto;
    }

.aisitex-header{
      border-bottom: 1px solid #d6d8d2;
      background: #f5f3ee;
    }

.aisitex-header .aisitex-header-inner{
      min-height: 78px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

.aisitex-header .aisitex-wordmark{
      font-size: 23px;
      line-height: 1;
      font-weight: 800;
      white-space: nowrap;
    }

.aisitex-header .aisitex-wordmark span{
      color: #e64d24;
    }

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

.aisitex-header .aisitex-nav-link{
      position: relative;
      padding: 10px 0;
      color: #4d5550;
      font-size: 14px;
      font-weight: 600;
      transition: color .18s ease;
    }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
      color: #e64d24;
    }

.aisitex-header .aisitex-nav-link.active::after{
      position: absolute;
      right: 0;
      bottom: 2px;
      left: 0;
      height: 2px;
      background: #e64d24;
      content: "";
    }

.aisitex-header .aisitex-menu-toggle{
      display: none;
      width: 42px;
      height: 42px;
      align-items: center;
      justify-content: center;
      border: 1px solid #d6d8d2;
      color: #202421;
      background: transparent;
      cursor: pointer;
    }

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

@media (max-width: 900px){.aisitex-header .aisitex-shell{ width: min(100% - 40px, 720px); }}

@media (max-width: 640px){.aisitex-header .aisitex-shell{ width: calc(100% - 36px); }

.aisitex-header .aisitex-header-inner{ min-height: 66px; }

.aisitex-header .aisitex-wordmark{ font-size: 21px; }

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

.aisitex-header .aisitex-nav{
        position: absolute;
        z-index: 5;
        top: 104px;
        right: 18px;
        left: 18px;
        display: flex;
        align-items: stretch;
        flex-direction: column;
        gap: 0;
        padding: 8px 18px;
        border: 1px solid #d6d8d2;
        background: #f5f3ee;
      }

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

.aisitex-header .aisitex-nav-link{ padding: 13px 0; border-bottom: 1px solid #d6d8d2; }

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

.aisitex-header .aisitex-nav-link.active::after{ right: auto; width: 22px; bottom: 7px; }}

@media (prefers-reduced-motion: reduce){.aisitex-header, .aisitex-header *, .aisitex-header::before, .aisitex-header *::before, .aisitex-header::after, .aisitex-header *::after{
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
      }}

.aisitex-footer {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: #202421;
}

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

.aisitex-footer .aisitex-shell{
      width: min(1240px, calc(100% - 64px));
      margin-inline: auto;
    }

.aisitex-footer{
      border-top: 1px solid #d6d8d2;
    }

.aisitex-footer .aisitex-footer-inner{
      min-height: 68px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      color: #5e6661;
      font-size: 12px;
    }

.aisitex-footer .aisitex-footer-brand{
      color: #202421;
      font-weight: 700;
    }

@media (max-width: 900px){.aisitex-footer .aisitex-shell{ width: min(100% - 40px, 720px); }}

@media (max-width: 640px){.aisitex-footer .aisitex-shell{ width: calc(100% - 36px); }

.aisitex-footer .aisitex-footer-inner{ min-height: 62px; }}

@media (prefers-reduced-motion: reduce){.aisitex-footer, .aisitex-footer *, .aisitex-footer::before, .aisitex-footer *::before, .aisitex-footer::after, .aisitex-footer *::after{
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .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}