:root {
  color-scheme: light;
  --case-ink: #15202b;
  --case-muted: #536372;
  --case-navy: #062e5b;
  --case-blue: #000080;
  --case-cyan: #0e7c86;
  --case-cream: #f5f3eb;
  --case-panel: #deded6;
  --case-chrome: #c0c0c0;
  --case-green: #087b35;
  --case-yellow: #ffe18a;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100svh;
  margin: 0;
  background-color: #1b62ae;
  background-image: url("../win98-pixel-wallpaper.webp");
  background-position: center bottom;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
  color: var(--case-ink);
  font: 14px/1.65 Tahoma, "Microsoft YaHei", sans-serif;
}

a {
  color: inherit;
}

.avatar-case-skip {
  position: absolute;
  z-index: 10;
  top: 8px;
  left: 8px;
  padding: 5px 8px;
  background: #ffffdf;
  color: #000;
  transform: translateY(-150%);
}

.avatar-case-skip:focus {
  transform: translateY(0);
}

.avatar-case-shell {
  width: min(1120px, calc(100% - 28px));
  margin: 0 auto;
  padding: 18px 0 44px;
}

.avatar-case-topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
  color: #fff;
  font-size: 12px;
}

.avatar-case-brand,
.avatar-case-back {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 8px;
  border: 1px solid rgb(255 255 255 / 38%);
  background: rgb(0 0 128 / 78%);
  text-decoration: none;
}

.avatar-case-brand:hover,
.avatar-case-back:hover {
  background: rgb(0 0 128 / 92%);
}

.avatar-case-brand img {
  width: 18px;
  height: 18px;
  image-rendering: pixelated;
}

.avatar-case-brand strong {
  font-size: 13px;
}

.avatar-case-brand small {
  display: block;
  color: #d8ffff;
  font-size: 10px;
  line-height: 1.1;
}

.avatar-case-window {
  padding: 3px;
  border: 2px solid;
  border-color: #fff #202020 #202020 #fff;
  background: var(--case-chrome);
  box-shadow: 4px 4px 0 rgb(0 0 0 / 45%);
}

.avatar-case-titlebar {
  display: flex;
  min-height: 32px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 5px 7px;
  background: linear-gradient(90deg, var(--case-blue), #1084d0);
  color: #fff;
  font-weight: 700;
}

.avatar-case-titlebar-caption,
.avatar-case-window-controls {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.avatar-case-titlebar-caption img {
  width: 19px;
  height: 19px;
  image-rendering: pixelated;
}

.avatar-case-window-controls span {
  display: grid;
  width: 22px;
  height: 20px;
  place-items: center;
  border: 2px solid;
  border-color: #fff #404040 #404040 #fff;
  background: var(--case-chrome);
  color: #111;
  font: 700 13px/1 Tahoma, sans-serif;
}

.avatar-case-content {
  padding: clamp(18px, 4vw, 46px);
  border: 1px solid;
  border-color: #404040 #fff #fff #404040;
  background:
    linear-gradient(rgb(245 243 235 / 94%), rgb(245 243 235 / 94%)),
    repeating-linear-gradient(0deg, #aab6bf 0 1px, transparent 1px 25px);
}

.avatar-case-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 0.9fr);
  align-items: center;
  gap: clamp(24px, 5vw, 58px);
}

.avatar-case-kicker {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 0 0 13px;
  padding: 3px 8px;
  border: 1px solid #95834a;
  background: #ffffdf;
  color: #5e4600;
  font: 700 11px/1.4 "Courier New", monospace;
  letter-spacing: 0.02em;
}

.avatar-case-led {
  width: 8px;
  height: 8px;
  border: 1px solid #075322;
  background: #16be57;
  box-shadow: inset 1px 1px #aaffbd;
}

.avatar-case-hero h1 {
  max-width: 670px;
  margin: 0;
  color: var(--case-navy);
  font-family: SimSun, "Microsoft YaHei", serif;
  font-size: clamp(34px, 5.6vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.05em;
}

.avatar-case-hero-lead {
  max-width: 650px;
  margin: 20px 0 0;
  color: #33404e;
  font-size: 16px;
}

.avatar-case-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 24px;
}

.avatar-case-action {
  display: inline-flex;
  min-height: 37px;
  align-items: center;
  padding: 7px 13px;
  border: 2px solid;
  border-color: #fff #404040 #404040 #fff;
  background: var(--case-chrome);
  color: #111;
  font-weight: 700;
  text-decoration: none;
}

.avatar-case-action-primary {
  border-color: #668bd4 #00143c #00143c #668bd4;
  background: var(--case-blue);
  color: #fff;
}

.avatar-case-action:active {
  border-color: #404040 #fff #fff #404040;
  transform: translate(1px, 1px);
}

.avatar-case-action:focus-visible,
.avatar-case-brand:focus-visible,
.avatar-case-back:focus-visible,
.avatar-case-link:focus-visible {
  outline: 2px dotted #000;
  outline-offset: 3px;
}

.avatar-case-tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 21px 0 0;
  padding: 0;
  list-style: none;
}

.avatar-case-tech-list li {
  padding: 2px 7px;
  border: 1px solid #6e8495;
  background: #e8f1f4;
  color: #15435d;
  font: 700 11px/1.45 "Courier New", monospace;
}

.avatar-case-console {
  overflow: hidden;
  border: 3px solid;
  border-color: #fff #404040 #404040 #fff;
  background: #051b2f;
  box-shadow: 5px 5px 0 rgb(0 0 0 / 24%);
}

.avatar-case-console-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 8px;
  background: var(--case-chrome);
  color: #111;
  font: 700 11px/1.3 "Courier New", monospace;
}

.avatar-case-console-body {
  padding: 16px;
  color: #b5f3cf;
  font: 12px/1.55 "Courier New", monospace;
}

.avatar-case-console-status {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 13px;
  color: #f5db78;
}

.avatar-case-console-status .avatar-case-led {
  flex: 0 0 auto;
}

.avatar-case-console-line {
  margin: 0 0 8px;
  color: #88b7d7;
}

.avatar-case-console-line strong {
  color: #fff;
}

.avatar-case-console-message {
  margin: 9px 0;
  padding: 9px 10px;
  border-left: 3px solid #f2cf61;
  background: rgb(255 255 255 / 7%);
}

.avatar-case-console-message.is-answer {
  border-left-color: #38d278;
  color: #e2ffe9;
}

.avatar-case-pipeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 5px;
  margin-top: 16px;
}

.avatar-case-pipeline span {
  padding: 6px 4px;
  border: 1px solid #27617d;
  background: #0b2d45;
  color: #a6dbf4;
  font-size: 10px;
  text-align: center;
}

.avatar-case-pipeline span:not(:last-child)::after {
  color: #f5db78;
  content: " →";
}

.avatar-case-console-foot {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 13px;
  color: #6e9bb8;
  font-size: 10px;
}

.avatar-case-proof-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 38px;
}

.avatar-case-proof {
  min-height: 88px;
  padding: 12px 13px;
  border: 2px solid;
  border-color: #fff #737373 #737373 #fff;
  background: #d9d9d1;
}

.avatar-case-proof strong,
.avatar-case-proof span {
  display: block;
}

.avatar-case-proof strong {
  color: var(--case-blue);
  font-size: 14px;
}

.avatar-case-proof span {
  margin-top: 4px;
  color: var(--case-muted);
  font-size: 12px;
}

.avatar-case-section {
  margin-top: 46px;
}

.avatar-case-section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 15px;
  border-bottom: 2px solid var(--case-navy);
}

.avatar-case-section-heading p {
  margin: 0 0 5px;
  color: #65747e;
  font: 11px/1.3 "Courier New", monospace;
}

.avatar-case-section-heading h2 {
  margin: 0;
  color: var(--case-navy);
  font-size: clamp(21px, 3vw, 31px);
  line-height: 1.15;
}

.avatar-case-section-heading > span {
  padding-bottom: 5px;
  color: #5b6871;
  font: 700 11px/1.3 "Courier New", monospace;
  white-space: nowrap;
}

.avatar-case-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.avatar-case-flow-step {
  position: relative;
  min-height: 157px;
  padding: 14px;
  border: 2px solid;
  border-color: #fff #737373 #737373 #fff;
  background: #e0e0d8;
}

.avatar-case-flow-step::after {
  position: absolute;
  top: 58px;
  right: -17px;
  z-index: 1;
  color: var(--case-cyan);
  content: "▶";
  font-size: 14px;
}

.avatar-case-flow-step:last-child::after {
  display: none;
}

.avatar-case-flow-number {
  display: block;
  color: #768590;
  font: 700 11px/1.3 "Courier New", monospace;
}

.avatar-case-flow-step h3 {
  margin: 9px 0 4px;
  color: var(--case-blue);
  font-size: 16px;
}

.avatar-case-flow-step p {
  margin: 0;
  color: var(--case-muted);
  font-size: 12px;
  line-height: 1.55;
}

.avatar-case-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.avatar-case-panel {
  padding: 3px;
  border: 2px solid;
  border-color: #fff #404040 #404040 #fff;
  background: var(--case-chrome);
}

.avatar-case-panel h3 {
  margin: 0;
  padding: 7px 9px;
  background: var(--case-blue);
  color: #fff;
  font-size: 13px;
}

.avatar-case-panel-body {
  min-height: 190px;
  padding: 13px;
  border: 1px solid;
  border-color: #404040 #fff #fff #404040;
  background: var(--case-cream);
}

.avatar-case-panel-body ul {
  margin: 0;
  padding-left: 19px;
}

.avatar-case-panel-body li + li {
  margin-top: 7px;
}

.avatar-case-panel-body li::marker {
  color: var(--case-cyan);
}

.avatar-case-timeline {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  border: 2px solid;
  border-color: #737373 #fff #fff #737373;
  background: #d4d4cc;
}

.avatar-case-timeline-item {
  position: relative;
  min-height: 128px;
  padding: 13px 12px 12px;
  border-right: 1px solid #a4a49c;
}

.avatar-case-timeline-item:last-child {
  border-right: 0;
}

.avatar-case-timeline-item.is-current {
  background: #ffffdf;
}

.avatar-case-timeline-item span {
  color: #5c6d75;
  font: 700 10px/1.3 "Courier New", monospace;
}

.avatar-case-timeline-item strong {
  display: block;
  margin: 9px 0 4px;
  color: var(--case-blue);
  font-size: 14px;
}

.avatar-case-timeline-item p {
  margin: 0;
  color: var(--case-muted);
  font-size: 11px;
  line-height: 1.5;
}

.avatar-case-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  padding: 18px;
  border: 2px solid;
  border-color: #fff #737373 #737373 #fff;
  background: var(--case-navy);
  color: #fff;
}

.avatar-case-cta h2 {
  margin: 0;
  font-size: 22px;
}

.avatar-case-cta p {
  max-width: 680px;
  margin: 5px 0 0;
  color: #d1e6f4;
  font-size: 12px;
}

.avatar-case-cta .avatar-case-action {
  border-color: #fff #303030 #303030 #fff;
  background: #ffffdf;
  color: #111;
  white-space: nowrap;
}

.avatar-case-footer {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 11px;
  padding: 7px 9px;
  border: 1px solid;
  border-color: #fff #808080 #808080 #fff;
  background: var(--case-chrome);
  color: #3e4650;
  font-size: 11px;
}

.avatar-case-console .avatar-case-led {
  animation: avatar-case-pulse 1.8s steps(2, end) infinite;
}

@keyframes avatar-case-pulse {
  50% {
    opacity: 0.48;
  }
}

@media (max-width: 900px) {
  .avatar-case-hero {
    grid-template-columns: 1fr;
  }

  .avatar-case-console {
    max-width: 620px;
  }

  .avatar-case-detail-grid {
    grid-template-columns: 1fr;
  }

  .avatar-case-panel-body {
    min-height: 0;
  }
}

@media (max-width: 700px) {
  .avatar-case-shell {
    width: calc(100% - 14px);
    padding-top: 8px;
  }

  .avatar-case-topnav {
    align-items: stretch;
    flex-direction: column;
    gap: 6px;
  }

  .avatar-case-back {
    align-self: flex-start;
  }

  .avatar-case-content {
    padding: 22px 14px;
  }

  .avatar-case-hero-lead {
    font-size: 14px;
  }

  .avatar-case-console-body {
    padding: 12px 10px;
  }

  .avatar-case-pipeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .avatar-case-pipeline span:not(:last-child)::after {
    content: "";
  }

  .avatar-case-proof-row,
  .avatar-case-flow {
    grid-template-columns: 1fr;
  }

  .avatar-case-proof {
    min-height: 0;
  }

  .avatar-case-flow-step {
    min-height: 0;
  }

  .avatar-case-flow-step::after {
    top: auto;
    right: 50%;
    bottom: -18px;
    transform: rotate(90deg);
  }

  .avatar-case-section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .avatar-case-section-heading > span {
    padding-bottom: 7px;
  }

  .avatar-case-timeline {
    grid-template-columns: 1fr;
  }

  .avatar-case-timeline-item {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid #a4a49c;
  }

  .avatar-case-timeline-item:last-child {
    border-bottom: 0;
  }

  .avatar-case-cta {
    grid-template-columns: 1fr;
  }

  .avatar-case-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

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

  .avatar-case-console .avatar-case-led {
    animation: none;
  }
}