:root {
  --ul-ink: #eef4ff;
  --ul-muted: #9eacc9;
  --ul-night: #07111d;
  --ul-panel: #101e32;
  --ul-panel-2: #172842;
  --ul-line: #35506e;
  --ul-cyan: #47d7df;
  --ul-gold: #f3c969;
  --ul-green: #54dfa1;
  --ul-red: #ff796f;
  --ul-shadow: #02060b;
  --ul-font: "Fusion Pixel 12px Proportional SC", "ZCOOL KuaiLe", "PingFang SC", sans-serif;
}

body.ul-locked {
  overflow: hidden;
}

.ul-overlay {
  position: fixed;
  inset: 0;
  z-index: 12000;
  display: grid;
  place-items: center;
  padding: 18px;
  color: var(--ul-ink);
  font-family: var(--ul-font);
  background:
    linear-gradient(rgba(4, 10, 18, .88), rgba(4, 10, 18, .96)),
    repeating-linear-gradient(0deg, transparent 0 3px, rgba(71, 215, 223, .04) 3px 4px);
  image-rendering: pixelated;
}

.ul-overlay[hidden] {
  display: none;
}

.ul-window {
  width: min(1180px, 100%);
  height: min(880px, calc(100vh - 36px));
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
  border: 3px solid var(--ul-gold);
  outline: 5px solid var(--ul-shadow);
  box-shadow:
    0 0 0 2px #795522,
    18px 18px 0 rgba(0, 0, 0, .36);
  background: var(--ul-night);
  clip-path: polygon(0 10px, 10px 10px, 10px 0, calc(100% - 10px) 0, calc(100% - 10px) 10px, 100% 10px, 100% calc(100% - 10px), calc(100% - 10px) calc(100% - 10px), calc(100% - 10px) 100%, 10px 100%, 10px calc(100% - 10px), 0 calc(100% - 10px));
}

.ul-topbar {
  min-height: 82px;
  display: grid;
  grid-template-columns: minmax(200px, 1fr) auto auto;
  gap: 18px;
  align-items: center;
  padding: 14px 18px;
  border-bottom: 3px solid var(--ul-line);
  background:
    linear-gradient(90deg, #0a1727, #122640 58%, #0a1727),
    repeating-linear-gradient(90deg, transparent 0 12px, rgba(255, 255, 255, .02) 12px 13px);
}

.ul-brand small {
  display: block;
  margin-bottom: 4px;
  color: var(--ul-cyan);
  font-size: 12px;
  letter-spacing: .12em;
}

.ul-brand strong {
  display: block;
  color: var(--ul-ink);
  font-size: clamp(18px, 2vw, 25px);
  line-height: 1.25;
  text-shadow: 2px 2px 0 #000;
}

.ul-nav {
  position: static !important;
  inset: auto !important;
  top: auto !important;
  right: auto !important;
  bottom: auto !important;
  left: auto !important;
  z-index: auto !important;
  width: auto !important;
  max-width: none !important;
  height: auto !important;
  transform: none !important;
  display: flex;
  gap: 8px;
  padding: 5px;
  border: 2px solid #263d59;
  background: #07111d;
}

.ul-nav button,
.ul-icon-button,
.ul-button,
.ul-level-tab,
.ul-book,
.ul-answer,
.ul-home-step {
  appearance: none;
  font: inherit;
  cursor: pointer;
}

.ul-review-filter {
  appearance: none;
  font: inherit;
  cursor: pointer;
}

.ul-overlay button:focus-visible,
.ul-overlay summary:focus-visible,
.ul-overlay textarea:focus-visible {
  outline: 3px solid #fff3b5;
  outline-offset: 3px;
}

.ul-nav button {
  position: static;
  display: block;
  flex: 0 0 auto;
  flex-direction: row;
  align-items: initial;
  gap: 0;
  padding: 10px 14px;
  border: 0;
  border-radius: 0;
  color: var(--ul-muted);
  background: transparent;
}

.ul-nav button:hover,
.ul-nav button.is-active {
  color: #06111c;
  background: var(--ul-cyan);
  box-shadow: inset -3px -3px 0 #21949b;
}

.ul-icon-button {
  width: 42px;
  height: 42px;
  border: 2px solid var(--ul-gold);
  color: var(--ul-gold);
  background: #28190d;
  box-shadow: inset -3px -3px 0 #120b05;
}

.ul-icon-button:hover {
  color: #160d04;
  background: var(--ul-gold);
}

.ul-content {
  min-height: 0;
  overflow: auto;
  padding: 24px;
  scrollbar-color: var(--ul-gold) #07111d;
  background:
    radial-gradient(circle at 16% 12%, rgba(71, 215, 223, .10), transparent 30%),
    radial-gradient(circle at 92% 80%, rgba(243, 201, 105, .08), transparent 28%),
    linear-gradient(#0a1524, #07111d);
}

.ul-page-head {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-bottom: 22px;
}

.ul-kicker {
  margin: 0 0 7px;
  color: var(--ul-cyan);
  font-size: 12px;
  letter-spacing: .12em;
}

.ul-page-head h2,
.ul-lesson-title,
.ul-question-card h2 {
  margin: 0;
  color: var(--ul-ink);
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.25;
  text-shadow: 3px 3px 0 #000;
}

.ul-page-head p {
  max-width: 720px;
  margin: 9px 0 0;
  color: var(--ul-muted);
  font-size: 15px;
  line-height: 1.75;
}

.ul-hud {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: end;
}

.ul-chip {
  padding: 8px 10px;
  border: 2px solid #304968;
  color: var(--ul-muted);
  background: #0b1728;
  white-space: nowrap;
}

.ul-chip strong {
  color: var(--ul-gold);
}

.ul-level-tabs {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 20px;
}

.ul-level-tab {
  min-height: 72px;
  padding: 10px;
  border: 2px solid #2b4260;
  color: var(--ul-muted);
  text-align: left;
  background: #0d1a2c;
  box-shadow: inset -4px -4px 0 #07101b;
}

.ul-level-tab span {
  display: block;
  margin-bottom: 6px;
  color: var(--ul-cyan);
  font-size: 11px;
}

.ul-level-tab strong {
  display: block;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.45;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ul-level-tab:hover,
.ul-level-tab.is-active {
  border-color: var(--ul-gold);
  color: var(--ul-ink);
  transform: translateY(-2px);
}

.ul-level-tab.is-active {
  background: #1c2a3e;
  box-shadow: inset 0 -5px 0 #8a6128;
}

.ul-flow-note {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin: 0 0 20px;
  padding: 13px 15px;
  border-left: 5px solid var(--ul-cyan);
  color: var(--ul-muted);
  line-height: 1.65;
  background: #102238;
}

.ul-flow-note strong {
  color: var(--ul-cyan);
}

.ul-credential-brief {
  margin: 18px 0;
  border: 2px solid #35526f;
  background: linear-gradient(135deg, #0d1c2d 0%, #132b3f 100%);
  box-shadow: inset 0 -5px 0 rgba(0, 0, 0, .24);
}

.ul-credential-title {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  border-bottom: 2px solid #35526f;
}

.ul-credential-title span {
  color: var(--ul-cyan);
  font-family: var(--ul-pixel);
  font-size: 12px;
}

.ul-credential-title strong {
  color: var(--ul-gold);
}

.ul-credential-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: #35526f;
}

.ul-credential-grid div {
  min-height: 88px;
  padding: 14px 16px;
  background: #11243a;
}

.ul-credential-grid small,
.ul-credential-grid b {
  display: block;
}

.ul-credential-grid small {
  margin-bottom: 7px;
  color: #7fa5c6;
  font-family: var(--ul-pixel);
  font-size: 10px;
}

.ul-credential-grid b {
  color: #e8f1ff;
  line-height: 1.7;
}

.ul-hardware-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  border-top: 2px solid #35526f;
  background: #211f2d;
}

.ul-hardware-note span {
  padding: 4px 7px;
  color: #17120a;
  background: var(--ul-gold);
  font-family: var(--ul-pixel);
  font-size: 9px;
}

.ul-hardware-note p {
  margin: 0;
  color: #d9cba9;
  line-height: 1.7;
}

.adv-beginner,
.adv-detail {
  color: #dbe7f7;
}

.adv-level-outcome,
.adv-prerequisite,
.adv-term-line,
.adv-output-example,
.adv-recovery,
.adv-bridge {
  margin: 14px 0;
  padding: 14px 16px;
  border: 1px solid #35526f;
  background: #0d1c2d;
}

.adv-level-outcome {
  border: 2px solid var(--ul-gold);
  background: linear-gradient(135deg, #2c261a 0%, #172b3b 100%);
}

.adv-level-outcome b,
.adv-output-example b,
.adv-bridge b {
  color: var(--ul-gold);
}

.adv-level-outcome p,
.adv-output-example p,
.adv-recovery p,
.adv-bridge p {
  margin: 7px 0 0;
  line-height: 1.8;
}

.adv-prerequisite {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #b8cbe0;
}

.adv-prerequisite b,
.adv-term-line b,
.adv-recovery b {
  color: var(--ul-cyan);
}

.adv-term-line {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 12px;
}

.adv-term-line span {
  color: #fff;
  font-weight: 800;
}

.adv-term-line small {
  grid-column: 1 / -1;
  color: #8ea8c1;
}

.adv-recovery {
  border-color: #6c976f;
  background: #152b28;
}

.adv-output-example {
  border-left: 5px solid var(--ul-gold);
  background: #292617;
}

.adv-bridge {
  margin-top: 28px;
  border-style: dashed;
}

.adv-plain,
.adv-example,
.adv-warning,
.adv-output {
  margin: 16px 0;
  padding: 16px 18px;
  border-left: 5px solid var(--ul-cyan);
  background: #142a42;
}

.adv-warning {
  border-left-color: #ff8a5c;
  background: #292432;
}

.adv-example b,
.adv-plain b,
.adv-warning b {
  color: var(--ul-cyan);
}

.adv-warning b {
  color: #ff9a70;
}

.adv-plain p,
.adv-example p,
.adv-warning p,
.adv-case-grid p {
  margin: 8px 0 0;
  line-height: 1.85;
}

.adv-mini-flow,
.adv-workflow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 9px;
  margin: 18px 0;
}

.adv-mini-flow div,
.adv-workflow div {
  min-height: 104px;
  padding: 12px;
  border: 1px solid #35526f;
  background: #0d1c2d;
}

.adv-mini-flow span,
.adv-workflow span {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  color: #0a1624;
  background: var(--ul-cyan);
  font-family: var(--ul-pixel);
  font-size: 10px;
}

.adv-mini-flow p,
.adv-workflow p {
  margin: 10px 0 0;
  line-height: 1.65;
}

.adv-detail h2 {
  margin-top: 28px;
  color: var(--ul-gold);
}

.adv-detail > p,
.adv-detail li {
  line-height: 1.9;
}

.adv-case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0;
}

.adv-case-grid article {
  padding: 16px;
  border: 1px solid #35526f;
  background: #102238;
}

.adv-case-grid article:last-child {
  border-color: #7a4b45;
  background: #271f2b;
}

.adv-output {
  border-left-color: var(--ul-gold);
  color: #f4dfaa;
}

.ul-books {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.ul-book {
  position: relative;
  min-height: 190px;
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 16px;
  padding: 18px;
  border: 2px solid #314b69;
  color: var(--ul-ink);
  text-align: left;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, .025), transparent 48%),
    #122137;
  box-shadow: inset -6px -6px 0 #0a1422;
}

.ul-book::after {
  content: "";
  position: absolute;
  inset: 7px;
  pointer-events: none;
  border: 1px dashed rgba(158, 172, 201, .16);
}

.ul-book:hover {
  border-color: var(--ul-gold);
  transform: translate(-2px, -2px);
  box-shadow: inset -6px -6px 0 #0a1422, 6px 6px 0 #02070d;
}

.ul-book.is-read {
  border-color: #2f8d70;
}

.ul-book-icon {
  position: relative;
  z-index: 1;
  width: 64px;
  height: 80px;
  display: grid;
  place-items: center;
  border: 3px solid #9b692e;
  color: #271708;
  font-size: 28px;
  background: var(--ul-gold);
  box-shadow: inset -7px 0 0 #cc973f, 5px 5px 0 #050a11;
}

.ul-book.is-read .ul-book-icon {
  border-color: #28765f;
  background: var(--ul-green);
  box-shadow: inset -7px 0 0 #2eab7d, 5px 5px 0 #050a11;
}

.ul-book-copy {
  position: relative;
  z-index: 1;
}

.ul-book-meta {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 9px;
  color: var(--ul-cyan);
  font-size: 11px;
  letter-spacing: .08em;
}

.ul-book-meta em {
  color: var(--ul-green);
  font-style: normal;
}

.ul-book h3 {
  margin: 0 0 9px;
  color: var(--ul-ink);
  font-size: 18px;
  line-height: 1.45;
}

.ul-book p {
  margin: 0;
  color: var(--ul-muted);
  font-size: 13px;
  line-height: 1.65;
}

.ul-footer-action {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-top: 20px;
  padding: 16px;
  border: 2px solid #304866;
  background: #0d1a2c;
}

.ul-footer-action p {
  margin: 0;
  color: var(--ul-muted);
  line-height: 1.6;
}

.ul-button {
  min-height: 44px;
  padding: 10px 18px;
  border: 2px solid #32506e;
  color: var(--ul-ink);
  background: #172a43;
  box-shadow: inset -4px -4px 0 #091321, 4px 4px 0 #03070c;
}

.ul-button:hover {
  transform: translate(-1px, -1px);
  filter: brightness(1.12);
}

.ul-button.is-primary {
  border-color: #bd7f31;
  color: #211304;
  background: var(--ul-gold);
  box-shadow: inset -4px -4px 0 #b77d31, 4px 4px 0 #03070c;
}

.ul-button.is-cyan {
  border-color: #238f98;
  color: #031215;
  background: var(--ul-cyan);
  box-shadow: inset -4px -4px 0 #20929a, 4px 4px 0 #03070c;
}

.ul-button.is-danger {
  border-color: #b8453e;
  color: #fff;
  background: #7d2f2b;
}

.ul-button:disabled {
  cursor: not-allowed;
  opacity: .45;
  transform: none;
}

.ul-button-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.ul-back {
  margin-bottom: 16px;
}

.ul-lesson-shell {
  max-width: 920px;
  margin: 0 auto;
}

.ul-lesson-head {
  position: static !important;
  inset: auto !important;
  z-index: auto !important;
  padding: 20px;
  border: 3px solid #3a5572;
  border-bottom-color: var(--ul-gold);
  background: #11233a;
}

.ul-lesson-head .ul-book-meta {
  justify-content: flex-start;
}

.ul-core-card {
  margin: 16px 0;
  padding: 18px;
  border: 3px solid #9d7136;
  color: #2a1908;
  line-height: 1.75;
  background:
    repeating-linear-gradient(0deg, rgba(107, 72, 26, .07) 0 1px, transparent 1px 5px),
    #f0d59b;
  box-shadow: 7px 7px 0 #03070c;
}

.ul-core-card strong {
  display: block;
  margin-bottom: 6px;
  color: #78451b;
}

.ul-lesson-body {
  padding: 24px;
  border: 2px solid #324a67;
  color: #dce6f8;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.9;
  background: #111d30;
}

.ul-lesson-body h1,
.ul-lesson-body h2,
.ul-lesson-body h3,
.ul-lesson-body h4 {
  color: #fff;
}

.ul-lesson-body b,
.ul-lesson-body strong {
  color: var(--ul-cyan);
}

.ul-lesson-body .exm,
.ul-lesson-body blockquote {
  margin: 16px 0;
  padding: 14px 16px;
  border-left: 5px solid var(--ul-gold);
  color: #d8dfed;
  background: #1a2a41;
}

.ul-lesson-body .gc-term {
  vertical-align: baseline;
}

.ul-depth-intro {
  margin: 0 0 24px;
  padding: 18px 20px;
  border: 2px solid #237b89;
  border-left: 7px solid var(--ul-cyan);
  background: #0a2735;
}

.ul-depth-intro span {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--ul-cyan);
  font: 700 12px/1.4 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.ul-depth-intro p {
  margin: 0;
}

.ul-lesson-body h2 {
  margin: 34px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid #324a67;
  font-size: 21px;
}

.ul-lesson-body p,
.ul-lesson-body li {
  color: #dce6f8;
}

.ul-lesson-body ul,
.ul-lesson-body ol {
  margin: 12px 0 20px;
  padding-left: 26px;
}

.ul-lesson-body li + li {
  margin-top: 8px;
}

.ul-lesson-body pre {
  margin: 16px 0 22px;
  padding: 18px 20px;
  overflow-x: auto;
  border: 2px solid #314c6c;
  color: #e7f3ff;
  background: #07121f;
  box-shadow: inset 5px 0 0 #25c3d2;
}

.ul-lesson-body code {
  padding: 2px 5px;
  color: #ffd978;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.92em;
  background: #091827;
}

.ul-lesson-body pre code {
  padding: 0;
  color: inherit;
  white-space: pre;
  background: transparent;
}

.ul-depth-table {
  display: block;
  width: 100%;
  margin: 16px 0 24px;
  overflow-x: auto;
  border-collapse: collapse;
  white-space: normal;
}

.ul-depth-table thead,
.ul-depth-table tbody {
  display: table;
  width: 100%;
  min-width: 620px;
  table-layout: fixed;
}

.ul-depth-table th,
.ul-depth-table td {
  padding: 12px 14px;
  border: 1px solid #395470;
  text-align: left;
  vertical-align: top;
}

.ul-depth-table th {
  color: #07111d;
  background: var(--ul-gold);
}

.ul-depth-table td {
  color: #dce6f8;
  background: #102139;
}

.ul-depth-table tbody tr:nth-child(even) td {
  background: #0c1b2e;
}

.ul-checkpoint {
  margin-top: 32px;
  padding: 18px 20px;
  border: 2px dashed var(--ul-green);
  color: #e8fff2;
  background: #0c2a26;
}

.ul-checkpoint b {
  color: var(--ul-green);
}

.ul-reading-path {
  display: grid;
  gap: 16px;
}

.ul-reading-path-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 14px;
  align-items: center;
  padding: 16px 18px;
  border: 2px solid #2c8291;
  color: #d9faff;
  background: #08222f;
}

.ul-reading-path-head span {
  grid-row: 1 / 3;
  padding: 7px 9px;
  color: #06131d;
  font: 700 11px/1.2 "SFMono-Regular", Consolas, monospace;
  background: var(--ul-cyan);
}

.ul-reading-path-head strong {
  color: #fff;
}

.ul-reading-path-head small {
  color: #9fc4cf;
}

.ul-beginner-body {
  padding: clamp(18px, 4vw, 28px);
  border: 3px solid #345675;
  color: #e5edf9;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.85;
  background: #0d1c2e;
}

.ul-beginner-body h2 {
  margin: 30px 0 13px;
  color: #fff;
  font-size: 20px;
  line-height: 1.45;
}

.ul-beginner-hero {
  margin-bottom: 24px;
  padding: 20px;
  border-left: 7px solid var(--ul-cyan);
  background: linear-gradient(100deg, #0a2d39, #10243a);
}

.ul-beginner-hero span {
  color: var(--ul-cyan);
  font: 700 11px/1.3 "SFMono-Regular", Consolas, monospace;
  letter-spacing: .14em;
}

.ul-beginner-hero h2 {
  margin: 8px 0;
  font-size: clamp(21px, 3vw, 28px);
}

.ul-beginner-hero p {
  margin: 0;
  color: #bfd3e6;
}

.ul-visual-flow {
  display: flex;
  gap: 8px;
  align-items: stretch;
  margin: 16px 0 24px;
}

.ul-visual-flow > i {
  align-self: center;
  color: var(--ul-gold);
  font: 700 18px/1 "SFMono-Regular", Consolas, monospace;
  font-style: normal;
}

.ul-visual-node {
  flex: 1 1 0;
  min-width: 0;
  padding: 14px 10px;
  border: 2px solid #365979;
  text-align: center;
  background: #10243b;
  box-shadow: inset -4px -4px 0 #091522;
}

.ul-visual-node small,
.ul-visual-node strong,
.ul-visual-node span {
  display: block;
}

.ul-visual-node small {
  color: var(--ul-cyan);
  font: 700 10px/1.3 "SFMono-Regular", Consolas, monospace;
}

.ul-visual-node strong {
  margin: 6px 0;
  color: #fff;
  font-size: 14px;
}

.ul-visual-node span {
  color: #aebfd5;
  font-size: 12px;
  line-height: 1.5;
}

.ul-concept-grid,
.ul-example-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 15px 0 24px;
}

.ul-concept-grid > div,
.ul-example-pair > div {
  padding: 16px;
  border: 2px solid #36536f;
  background: #102239;
}

.ul-concept-grid strong,
.ul-concept-grid span,
.ul-example-pair b,
.ul-example-pair p,
.ul-example-pair small {
  display: block;
}

.ul-concept-grid strong,
.ul-example-pair b {
  color: #fff;
}

.ul-concept-grid span,
.ul-example-pair small {
  color: #aebfd3;
  font-size: 13px;
  line-height: 1.6;
}

.ul-example-pair p {
  margin: 8px 0;
}

.ul-example-pair .is-wrong {
  border-left: 6px solid var(--ul-red);
  background: #2b1920;
}

.ul-example-pair .is-right {
  border-left: 6px solid var(--ul-green);
  background: #102b27;
}

.ul-analogy-card,
.ul-beginner-check {
  margin: 18px 0;
  padding: 17px 19px;
  border-left: 6px solid var(--ul-gold);
  color: #dce6f4;
  background: #202238;
}

.ul-analogy-card b {
  color: var(--ul-gold);
}

.ul-analogy-card p {
  margin: 6px 0 0;
}

.ul-beginner-check {
  margin-top: 28px;
  border: 2px dashed var(--ul-green);
  color: #e8fff2;
  background: #0c2926;
}

.ul-beginner-check b {
  color: var(--ul-green);
}

.ul-full-lesson {
  border: 2px solid #39536e;
  background: #0a1727;
}

.ul-full-lesson > summary {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 12px;
  padding: 16px 18px;
  color: #fff;
  cursor: pointer;
  list-style: none;
  background: #14263b;
}

.ul-full-lesson > summary::-webkit-details-marker {
  display: none;
}

.ul-full-lesson > summary::after {
  content: "+";
  grid-column: 2;
  grid-row: 1 / 3;
  align-self: center;
  color: var(--ul-gold);
  font: 700 24px/1 "SFMono-Regular", Consolas, monospace;
}

.ul-full-lesson[open] > summary::after {
  content: "-";
}

.ul-full-lesson > summary span,
.ul-full-lesson > summary small {
  display: block;
}

.ul-full-lesson > summary small {
  color: #9fb2c8;
}

.ul-full-lesson .ul-lesson-body {
  border-width: 2px 0 0;
}

.ul-reading-hint {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: start;
  margin-bottom: 18px;
  padding: 13px 15px;
  border-left: 5px solid var(--ul-cyan);
  color: #c9e4eb;
  background: #0b2a37;
}

.ul-reading-hint strong {
  color: var(--ul-cyan);
}

.ul-guide-explain {
  margin-top: 14px;
  padding: 13px 15px;
  border: 1px solid #34536f;
  background: #102339;
}

.ul-guide-explain b,
.ul-guide-explain p,
.ul-guide-explain small {
  display: block;
}

.ul-guide-explain b {
  color: var(--ul-cyan);
}

.ul-guide-explain p {
  margin: 5px 0;
  color: #e4edf8;
}

.ul-guide-explain small {
  color: #d1ad72;
}

.ul-expression-state {
  margin-left: 6px;
  color: #d1ad72 !important;
}

.ul-expression-state.is-done {
  color: var(--ul-green) !important;
}

.ul-reflection-card {
  margin-top: 22px;
  padding: clamp(18px, 4vw, 26px);
  border: 3px solid #8b6537;
  color: #e5edf8;
  background:
    linear-gradient(rgba(255, 208, 106, .05), rgba(255, 208, 106, .01)),
    #111d30;
  box-shadow: inset -6px -6px 0 #081321;
}

.ul-reflection-card.is-complete {
  border-color: #2f8f72;
  background:
    linear-gradient(rgba(69, 210, 158, .06), rgba(69, 210, 158, .01)),
    #111d30;
}

.ul-reflection-card > header {
  display: flex;
  gap: 18px;
  justify-content: space-between;
  align-items: start;
  padding-bottom: 15px;
  border-bottom: 2px solid #344d68;
}

.ul-reflection-card > header span {
  display: block;
  color: var(--ul-gold);
  font: 700 11px/1.3 "SFMono-Regular", Consolas, monospace;
  letter-spacing: .08em;
}

.ul-reflection-card > header h2 {
  margin: 6px 0 0;
  color: #fff;
  font: 700 22px/1.35 "PingFang SC", "Microsoft YaHei", sans-serif;
}

.ul-reflection-card > header em {
  flex: 0 0 auto;
  padding: 6px 9px;
  border: 2px solid #8b6537;
  color: #d8b26e;
  font: 700 11px/1.2 "SFMono-Regular", Consolas, monospace;
  font-style: normal;
  background: #251d17;
}

.ul-reflection-card.is-complete > header em {
  border-color: #2f8f72;
  color: var(--ul-green);
  background: #102a24;
}

.ul-reflection-prompt {
  margin: 20px 0 15px;
  color: #fff;
  font: 700 18px/1.7 "PingFang SC", "Microsoft YaHei", sans-serif;
}

.ul-reflection-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.ul-reflection-checks span {
  padding: 6px 9px;
  border: 1px solid #4a6079;
  color: #b9cadb;
  font-size: 12px;
  background: #0b1828;
}

.ul-reflection-card > label,
.ul-reflection-card > small {
  display: block;
}

.ul-reflection-card > label {
  margin-bottom: 6px;
  color: var(--ul-cyan);
  font-weight: 700;
}

.ul-reflection-card > small {
  margin-bottom: 10px;
  color: #9eafc4;
  line-height: 1.6;
}

.ul-reflection-card textarea {
  width: 100%;
  min-height: 150px;
  resize: vertical;
  padding: 15px;
  border: 2px solid #3b526f;
  outline: 0;
  color: #edf4ff;
  font: 16px/1.75 "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #071321;
}

.ul-reflection-card textarea:focus {
  border-color: var(--ul-cyan);
  box-shadow: 0 0 0 2px rgba(69, 214, 222, .16);
}

.ul-reflection-card > footer {
  display: flex;
  gap: 14px;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
}

.ul-reflection-card > footer > span {
  color: #aebed1;
  font: 12px/1.4 "SFMono-Regular", Consolas, monospace;
}

.ul-reflection-card.is-complete > footer > span {
  color: var(--ul-green);
}

.ul-question-note {
  margin-top: 16px;
  padding: 18px;
  border: 2px solid #304866;
  background: #0d1a2c;
}

.ul-question-note label {
  display: block;
  margin-bottom: 9px;
  color: var(--ul-cyan);
}

.ul-question-note small {
  display: block;
  margin: 0 0 10px;
  color: var(--ul-muted);
}

.ul-question-note textarea {
  width: 100%;
  min-height: 82px;
  box-sizing: border-box;
  padding: 12px;
  resize: vertical;
  border: 2px solid #38516d;
  border-radius: 0;
  outline: none;
  color: var(--ul-ink);
  font: 15px/1.7 "PingFang SC", sans-serif;
  background: #07111d;
}

.ul-question-note textarea:focus {
  border-color: var(--ul-cyan);
}

.ul-training-grid {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 18px;
}

.ul-mission-card,
.ul-side-card,
.ul-question-card,
.ul-result-card,
.ul-wrong-card {
  border: 3px solid #324d6c;
  background: #101f34;
  box-shadow: inset -6px -6px 0 #081321;
}

.ul-mission-card {
  padding: 24px;
}

.ul-mission-card h3,
.ul-side-card h3 {
  margin: 0 0 12px;
  color: var(--ul-ink);
  font-size: 20px;
}

.ul-mission-card p,
.ul-side-card p {
  color: var(--ul-muted);
  line-height: 1.7;
}

.ul-stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 18px 0;
}

.ul-stat {
  padding: 13px;
  border: 2px solid #2e4663;
  color: var(--ul-muted);
  text-align: center;
  background: #0a1728;
}

.ul-stat strong {
  display: block;
  margin-bottom: 3px;
  color: var(--ul-gold);
  font-size: 23px;
}

.ul-side-card {
  padding: 20px;
}

.ul-flow-list {
  display: grid;
  gap: 9px;
}

.ul-flow-item {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 10px;
  align-items: center;
  padding: 10px;
  border: 2px solid #2c435f;
  color: var(--ul-muted);
  background: #0a1728;
}

.ul-flow-item span {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  color: #07111d;
  background: var(--ul-cyan);
}

.ul-question-wrap {
  max-width: 860px;
  margin: 0 auto;
}

.ul-progress-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  color: var(--ul-muted);
  font-size: 13px;
}

.ul-progress-track {
  height: 16px;
  margin-bottom: 18px;
  padding: 3px;
  border: 2px solid #324b68;
  background: #050c15;
}

.ul-progress-track span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--ul-cyan), var(--ul-green));
  transition: width .25s steps(5);
}

.ul-question-card {
  padding: clamp(20px, 4vw, 38px);
}

.ul-question-type {
  display: inline-block;
  margin-bottom: 14px;
  padding: 6px 9px;
  color: #07111d;
  font-size: 12px;
  background: var(--ul-gold);
}

.ul-question-card h2 {
  max-width: 760px;
  margin-bottom: 24px;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(21px, 2.8vw, 31px);
  line-height: 1.55;
  text-shadow: none;
}

.ul-answers {
  display: grid;
  gap: 11px;
}

.ul-answer {
  position: relative;
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 12px;
  align-items: center;
  min-height: 58px;
  padding: 10px 14px;
  border: 2px solid #37506d;
  color: #dbe6f7;
  text-align: left;
  background: #0a1728;
  box-shadow: inset -4px -4px 0 #050b13;
}

.ul-answer:hover:not(:disabled) {
  border-color: var(--ul-cyan);
  transform: translateX(3px);
}

.ul-answer b {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: var(--ul-cyan);
  background: #122943;
}

.ul-answer.is-correct {
  border-color: var(--ul-green);
  background: #123629;
}

.ul-answer.is-correct b {
  color: #052116;
  background: var(--ul-green);
}

.ul-answer.is-wrong {
  border-color: var(--ul-red);
  background: #3a1e24;
}

.ul-answer.is-wrong b {
  color: #2a0907;
  background: var(--ul-red);
}

.ul-answer:disabled {
  cursor: default;
}

.ul-feedback {
  margin-top: 18px;
  padding: 16px;
  border: 2px solid var(--ul-line);
  color: var(--ul-muted);
  line-height: 1.75;
  background: #081522;
}

.ul-feedback.is-correct {
  border-left: 6px solid var(--ul-green);
}

.ul-feedback.is-wrong {
  border-left: 6px solid var(--ul-red);
}

.ul-feedback strong {
  display: block;
  margin-bottom: 5px;
  color: var(--ul-ink);
}

.ul-source-hint {
  display: block;
  margin-top: 10px;
  color: var(--ul-cyan);
  font: 700 12px/1.5 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.04em;
}

.ul-result-card {
  max-width: 900px;
  margin: 0 auto;
  padding: clamp(22px, 4vw, 42px);
}

.ul-result-score {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 24px;
  align-items: center;
  margin: 20px 0;
}

.ul-score-orb {
  width: 140px;
  height: 140px;
  display: grid;
  place-items: center;
  border: 5px solid var(--ul-gold);
  color: var(--ul-gold);
  font-size: 35px;
  background: #07111d;
  box-shadow: inset 0 0 0 7px #172a43, 8px 8px 0 #03070c;
}

.ul-result-card.is-pass .ul-score-orb {
  border-color: var(--ul-green);
  color: var(--ul-green);
}

.ul-result-card h2 {
  margin: 0 0 8px;
  color: var(--ul-ink);
  font-size: 30px;
}

.ul-result-card p {
  color: var(--ul-muted);
  line-height: 1.7;
}

.ul-tag-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 13px 0;
}

.ul-tag {
  padding: 7px 9px;
  border: 2px solid #3b526d;
  color: var(--ul-muted);
  background: #091522;
}

.ul-wrong-list {
  display: grid;
  gap: 12px;
}

.ul-wrong-card {
  padding: 18px;
}

.ul-wrong-card h3 {
  margin: 0 0 9px;
  color: var(--ul-ink);
  font: 17px/1.55 "PingFang SC", sans-serif;
}

.ul-wrong-card p {
  margin: 6px 0 0;
  color: var(--ul-muted);
  line-height: 1.7;
}

.ul-wrong-card strong {
  color: var(--ul-green);
}

.ul-empty {
  max-width: 680px;
  margin: 60px auto;
  padding: 34px;
  border: 3px dashed #3a5572;
  color: var(--ul-muted);
  text-align: center;
  line-height: 1.8;
  background: #0d1a2c;
}

.ul-toast {
  position: fixed;
  z-index: 13000;
  right: 24px;
  bottom: 24px;
  max-width: min(420px, calc(100vw - 48px));
  padding: 13px 16px;
  border: 2px solid var(--ul-gold);
  color: var(--ul-ink);
  background: #15253b;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, .45);
}

#pg-gates .ul-home-flow {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  width: 100%;
}

#pg-gates .ul-home-step {
  min-height: 54px;
  padding: 8px;
  border: 2px solid rgba(243, 201, 105, .36);
  color: #d9e1ef;
  background: rgba(7, 17, 29, .82);
}

#pg-gates .ul-home-step span {
  display: block;
  margin-bottom: 4px;
  color: var(--ul-gold);
  font-size: 10px;
}

#pg-gates .ul-home-step strong {
  font-size: 12px;
}

#pg-gates .ul-home-step.is-done {
  border-color: var(--ul-green);
}

#pg-gates .ul-home-step.is-done span {
  color: var(--ul-green);
}

#pg-mode-row .ul-main-flow {
  width: 100%;
  display: grid;
  gap: 9px;
}

#pg-mode-row .ul-main-flow-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  color: #aebbd1;
  font-size: 11px;
}

#pg-mode-row .ul-main-flow-head strong {
  color: var(--ul-gold);
  font-size: 12px;
}

#pg-mode-row .ul-main-flow-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
}

#pg-mode-row .ul-main-flow-track span {
  min-height: 38px;
  display: grid;
  place-items: center;
  padding: 5px;
  border: 2px solid rgba(158, 172, 201, .28);
  color: #8f9db6;
  text-align: center;
  background: rgba(7, 17, 29, .72);
}

#pg-mode-row .ul-main-flow-track span.is-done {
  border-color: rgba(84, 223, 161, .7);
  color: var(--ul-green);
}

#pg-mode-row .ul-main-flow-track span.is-current {
  border-color: var(--ul-gold);
  color: var(--ul-gold);
}

@media (max-width: 840px) {
  .ul-overlay {
    padding: 0;
  }

  .ul-window {
    width: 100%;
    height: 100dvh;
    clip-path: none;
    border-width: 0;
    outline: 0;
  }

  .ul-topbar {
    grid-template-columns: 1fr auto;
    gap: 10px;
    min-height: 70px;
    padding: 10px 12px;
  }

  .ul-nav {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .ul-nav button {
    flex: 1;
    padding: 9px 8px;
  }

  .ul-content {
    padding: 16px 12px 30px;
  }

  .ul-page-head {
    display: block;
  }

  .ul-hud {
    justify-content: start;
    margin-top: 12px;
  }

  .ul-level-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ul-credential-grid,
  .adv-case-grid {
    grid-template-columns: 1fr;
  }

  .adv-mini-flow,
  .adv-workflow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ul-books,
  .ul-training-grid {
    grid-template-columns: 1fr;
  }

  .ul-book {
    min-height: 160px;
    grid-template-columns: 56px 1fr;
    padding: 14px;
  }

  .ul-book-icon {
    width: 50px;
    height: 66px;
  }

  .ul-footer-action,
  .ul-result-score {
    display: grid;
    grid-template-columns: 1fr;
  }

  .ul-score-orb {
    width: 110px;
    height: 110px;
  }

  .ul-stat-row {
    grid-template-columns: 1fr;
  }

  .ul-visual-flow {
    display: grid;
    grid-template-columns: 1fr;
  }

  .ul-visual-flow > i {
    justify-self: center;
    transform: rotate(90deg);
  }

  .ul-concept-grid,
  .ul-example-pair {
    grid-template-columns: 1fr;
  }

  .ul-reading-path-head {
    grid-template-columns: 1fr;
  }

  .ul-reading-path-head span {
    grid-row: auto;
    justify-self: start;
  }

  .ul-reflection-card > header,
  .ul-reflection-card > footer {
    display: grid;
    grid-template-columns: 1fr;
  }

  .ul-reflection-card > header em {
    justify-self: start;
  }
}

/* Home quest card v3: only current level, current step, next level and action. */
.pg-flow-v2 .pg-quest {
  left: 38%;
  top: 35%;
  z-index: 4;
  width: min(290px, 26vw);
  min-width: 280px;
  height: auto;
  min-height: 0;
  justify-content: flex-start;
  padding: 14px 14px 12px;
  border: 4px solid #3d2415;
  outline: 3px solid #a76f31;
  background: linear-gradient(180deg, #e5c88f 0%, #d8b477 100%);
  box-shadow: inset 0 0 0 3px #f2dca8, 7px 7px 0 rgba(4, 10, 16, .72);
}

.pg-flow-v2 .pg-quest .pg-eyebrow {
  margin: 0;
  color: #7a4b24;
  font-size: 9px;
  line-height: 12px;
}

.pg-flow-v2 .pg-quest > h2 {
  margin: 3px 0 6px;
  color: #2d1b12;
  font-size: 16px;
  line-height: 19px;
  text-shadow: 1px 1px 0 rgba(255, 236, 190, .85);
}

.pg-flow-v2 .pg-quest-sub,
.pg-flow-v2 .pg-artifact-line {
  display: none;
}

.pg-flow-v2 #pg-mode-row.pg-flow-panel {
  margin: 0 0 5px;
  padding: 0;
}

#pg-mode-row .ul-current-quest {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
  padding: 6px 7px;
  border: 2px solid #422819;
  color: #ffe8ad;
  background: #173044;
  box-shadow: inset 0 0 0 1px #6c8797;
}

#pg-mode-row .ul-current-quest span {
  color: #e7b95e;
  font-size: 8px;
  line-height: 10px;
  letter-spacing: .05em;
}

#pg-mode-row .ul-current-quest strong {
  color: #fff0bd;
  font-size: 10px;
  line-height: 12px;
  font-weight: 400;
}

#pg-gates.pg-gate-grid {
  display: block;
  margin: 0 0 7px;
}

#pg-gates .ul-next-level-preview {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px;
  align-items: center;
  padding: 4px 5px;
  border-top: 1px solid rgba(102, 61, 29, .52);
  border-bottom: 1px solid rgba(102, 61, 29, .52);
  color: #59381f;
  text-align: left;
}

#pg-gates .ul-next-level-preview span {
  color: #8b5728;
  font-size: 7px;
  line-height: 9px;
  letter-spacing: .04em;
}

#pg-gates .ul-next-level-preview strong {
  min-width: 0;
  overflow: hidden;
  color: #432817;
  font-size: 9px;
  line-height: 12px;
  font-weight: 400;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pg-flow-v2 .pg-quest-footer {
  margin-top: 0;
}

.pg-flow-v2 .pg-quest-footer .pg-primary:not(:disabled) {
  min-width: 136px;
  padding: 5px 9px;
  font-size: 10px;
  line-height: 13px;
}

@media (max-width: 840px) {
  .pg-flow-v2 .pg-quest {
    left: 4vw;
    right: 4vw;
    top: auto;
    bottom: 66px;
    width: auto;
    min-width: 0;
    padding: 14px 15px 12px;
    transform: none;
  }

  #pg-gates .ul-next-level-preview {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}

@media (max-width: 520px) {
  .ul-brand small {
    display: none;
  }

  .ul-brand strong {
    font-size: 17px;
  }

  .ul-level-tab {
    min-height: 62px;
  }

  .ul-question-card {
    padding: 18px 14px;
  }

  .ul-answer {
    grid-template-columns: 32px 1fr;
    padding: 9px;
  }

  #pg-gates .ul-home-flow {
    grid-template-columns: 1fr;
  }

  #pg-mode-row .ul-main-flow-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---- 高级关卡标识 ---- */
.ul-level-tab[data-level="6"],
.ul-level-tab[data-level="7"],
.ul-level-tab[data-level="8"],
.ul-level-tab[data-level="9"],
.ul-level-tab[data-level="10"],
.ul-level-tab[data-level="11"],
.ul-level-tab[data-level="12"],
.ul-level-tab[data-level="13"] {
  border-left: 3px solid var(--ul-cyan);
  padding-left: 9px;
}

/* ---- 累积统计 ---- */
.ul-cumulative-stats {
  margin: 16px 14px 6px;
  padding: 12px 16px;
  background: rgba(10, 22, 36, 0.6);
  border: 1px solid #2a3a50;
  border-radius: 12px;
  font-size: 12.5px;
  color: #9aa8c0;
  line-height: 1.7;
}
.ul-cumulative-stats strong {
  color: var(--ul-gold);
}

/* ---- 错题标签警告 ---- */
.ul-tag.is-warn {
  background: rgba(255, 138, 92, 0.15);
  border-color: rgba(255, 138, 92, 0.5);
  color: #ff9a70;
}

/* ---- 疑问卡片 ---- */
.ul-doubt-list {
  padding: 0 14px;
}
.ul-doubt-card {
  padding: 14px 16px;
  background: #1a2a3a;
  border: 1px solid #2e3e52;
  border-radius: 12px;
  margin-bottom: 10px;
}
.ul-doubt-card h3 {
  font-size: 13px;
  color: var(--ul-cyan);
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: space-between;
}
.ul-doubt-card h3 .ul-button {
  font-size: 11px;
  padding: 5px 10px;
  flex-shrink: 0;
}
.ul-doubt-card p {
  font-size: 12.5px;
  color: #b0c0d0;
  line-height: 1.7;
  margin: 0;
}

/* ---- 错题回课卡链接 ---- */
.ul-question-link {
  color: var(--ul-cyan);
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 700;
}

/* ---- 反思即时反馈对照 ---- */
.adv-output-example {
  margin: 12px 0 20px;
  padding: 14px 18px;
  border-left: 5px solid var(--ul-gold);
  background: #1c2a1c;
}
.adv-output-example b {
  color: var(--ul-gold);
}
.adv-output-example p {
  margin: 8px 0 0;
  line-height: 1.85;
  color: #b0c8b0;
}

.adv-recovery {
  margin: 12px 0 20px;
  padding: 14px 18px;
  border-left: 5px solid #ff8a5c;
  background: #292432;
}
.adv-recovery b {
  color: #ff9a70;
}
.adv-recovery p {
  margin: 8px 0 0;
  line-height: 1.85;
}

.adv-bridge {
  margin: 20px 0 6px;
  padding: 14px 18px;
  border-left: 5px solid var(--ul-cyan);
  background: #142a42;
}
.adv-bridge b {
  color: var(--ul-cyan);
}
.adv-bridge p {
  margin: 8px 0 0;
  line-height: 1.85;
}

.adv-prerequisite {
  margin: 0 0 12px;
  padding: 8px 12px;
  background: #182838;
  border-radius: 8px;
  font-size: 12px;
  color: #8aa0b8;
}
.adv-prerequisite b {
  color: var(--ul-gold);
}
.adv-prerequisite span {
  margin-left: 6px;
  color: #aabacc;
}

.adv-level-outcome {
  margin: 0 0 16px;
  padding: 14px 18px;
  border-left: 5px solid var(--ul-cyan);
  background: #1a3040;
}
.adv-level-outcome b {
  color: var(--ul-cyan);
  font-size: 13px;
}
.adv-level-outcome p {
  margin: 8px 0 0;
  line-height: 1.85;
}

.adv-term-line {
  margin: 0 0 16px;
  font-size: 12px;
  color: #6a8098;
  line-height: 1.8;
}
.adv-term-line b {
  color: var(--ul-cyan);
}
.adv-term-line span {
  display: inline-block;
  margin: 0 8px;
  color: #aabcc0;
  font-weight: 700;
}
.adv-term-line small {
  color: #5a7088;
}

/* Keep the home quest board inside the user-marked viewport bounds. */
.pg-flow-v2 .pg-quest {
  left: 50%;
  right: auto;
  top: 44%;
  bottom: auto;
  width: min(324px, calc(100vw - 24px));
  max-width: calc(100vw - 24px);
  min-width: 0;
  aspect-ratio: 1.25 / 1;
  height: auto;
  min-height: 0;
  padding: 28px 22px 22px;
  transform: translate(-50%, -50%);
}

.pg-flow-v2 #pg-mode-row.pg-flow-panel {
  gap: 0;
  margin: 2px 0 5px;
  padding: 0 4px 4px;
  border: 0;
  background: transparent;
  box-shadow: none;
}

#pg-mode-row .ul-main-flow {
  gap: 0;
}

#pg-mode-row .ul-main-flow-head {
  min-height: 22px;
  padding: 0 2px;
  color: #69442b;
  font-size: 9px;
  line-height: 12px;
}

#pg-mode-row .ul-main-flow-head strong {
  max-width: 72%;
  color: #8d321f;
  font-size: 10px;
  line-height: 13px;
  text-align: right;
}

#pg-mode-row .ul-main-flow-track {
  display: none;
}

#pg-gates.pg-gate-grid {
  gap: 4px;
  margin-bottom: 5px;
}

#pg-gates .ul-home-flow {
  gap: 4px;
}

#pg-gates .ul-home-step {
  min-height: 40px;
  padding: 4px 3px;
  border: 1px solid #79583c;
  color: #49301f;
  background: rgba(232, 207, 163, .82);
  box-shadow: inset 0 0 0 1px rgba(255, 240, 200, .5);
  font-family: var(--pg-pixel-font);
  font-weight: 400;
  line-height: 1.1;
}

#pg-gates .ul-home-step span {
  margin-bottom: 2px;
  color: #855329;
  font-size: 8px;
  line-height: 10px;
}

#pg-gates .ul-home-step strong {
  color: inherit;
  font-size: 10px;
  line-height: 13px;
  font-weight: 400;
}

#pg-gates .ul-home-step.is-done {
  border-color: #18352a;
  color: #fff0c1;
  background: #315443;
  box-shadow: inset 0 0 0 1px #75b88f;
}

#pg-gates .ul-home-step.is-done span {
  color: #8de5b3;
}

.pg-flow-v2 .pg-quest-footer {
  gap: 4px;
}

.pg-flow-v2 .pg-artifact-line {
  font-size: 8px;
  line-height: 11px;
}

.pg-flow-v2 .pg-quest-footer .pg-primary:not(:disabled) {
  min-width: 132px;
  padding: 6px 13px;
  color: #fff3d9 !important;
  -webkit-text-fill-color: #fff3d9;
  font-size: 13px;
  line-height: 16px;
  text-shadow: 2px 2px 0 #3a100b;
}

@media (max-height: 760px) and (min-width: 841px) {
  .pg-flow-v2 .pg-quest {
    top: 44%;
    min-height: 0;
    padding: 24px 20px 19px;
  }

  .pg-flow-v2 .pg-quest > h2 {
    margin: 2px 0 4px;
    font-size: 18px;
    line-height: 21px;
  }
}

@media (max-width: 840px) {
  .pg-flow-v2 .pg-quest {
    min-height: 0;
    padding: 24px 20px 19px;
  }

  #pg-gates .ul-home-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* Use the hall's native notice board: text and progress only, with no added panel or mask. */
.pg-flow-v2 .pg-quest {
  left: 50%;
  right: auto;
  top: 52.27%;
  bottom: auto;
  z-index: 4;
  width: auto;
  max-width: none;
  min-width: 0;
  height: 20.26%;
  min-height: 0;
  aspect-ratio: 297 / 201;
  display: block;
  overflow: clip;
  padding: 0;
  border: 0;
  outline: 0;
  background: none;
  background-image: none;
  box-shadow: none;
  color: #3f2418;
  pointer-events: none;
  transform: translate(calc(-47.14% + var(--camera-x)), -50%);
  transition: transform 500ms steps(8, end);
}

.pg-flow-v2 .pg-quest .pg-eyebrow,
.pg-flow-v2 .pg-quest > h2,
.pg-flow-v2 .pg-quest .pg-quest-sub,
.pg-flow-v2 .pg-quest #pg-mode-row,
.pg-flow-v2 .pg-quest #pg-gates,
.pg-flow-v2 .pg-quest .pg-artifact-line {
  display: none;
}

.pg-flow-v2 .pg-board-title {
  position: absolute;
  left: 4%;
  right: 4%;
  top: 8.5%;
  height: 30%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #3b2418;
  font-family: var(--pg-pixel-font);
  font-size: clamp(20px, 4vh, 40px);
  font-weight: 400;
  letter-spacing: 0.12em;
  line-height: 1;
  text-align: center;
  text-shadow: 2px 2px 0 rgba(255, 220, 151, 0.56);
  white-space: nowrap;
}

.pg-flow-v2 .pg-quest-footer {
  position: absolute;
  left: 15.8%;
  top: 59.7%;
  width: 75.8%;
  height: 35.3%;
  display: block;
  margin: 0;
  padding: 0;
  pointer-events: none;
}

.pg-flow-v2 .pg-quest-footer .pg-primary[data-home-progress] {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 100%;
  max-height: 100%;
  padding: 0 clamp(7px, 1.2vw, 16px);
  border: clamp(2px, 0.35vh, 4px) solid #572019;
  background: var(--pg-oxblood);
  box-shadow: inset 0 0 0 2px rgba(255, 214, 118, 0.32), 4px 4px 0 #4a180d;
  color: #fff3d9 !important;
  -webkit-text-fill-color: #fff3d9;
  overflow: hidden;
  pointer-events: auto;
  font-size: clamp(12px, 2.4vh, 22px);
  line-height: 1;
  text-overflow: ellipsis;
  text-shadow: 2px 2px 0 #3a100b;
  white-space: nowrap;
}

@media (max-width: 360px) {
  .pg-flow-v2 .pg-quest-footer .pg-primary[data-home-progress] {
    padding-inline: 3px;
    font-size: 11px;
    letter-spacing: 0.03em;
    text-shadow: 1px 1px 0 #3a100b;
  }
}

/* The complete learning window scrolls; titles and tabs must not stay locked. */
.ul-window {
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: max-content max-content;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-color: var(--ul-gold) #07111d;
}

.ul-topbar {
  position: static;
}

.ul-content {
  min-height: auto;
  overflow: visible;
}

/* The legacy page styles every header as sticky; unified learning headers are local content. */
.ul-page-head,
.ul-review-card > header,
.ul-review-signal > header,
.ul-reflection-card > header {
  position: static;
  top: auto;
  z-index: auto;
  background: transparent;
}

.ul-page-head,
.ul-review-card > header {
  padding: 0;
}

.ul-review-signal > header {
  padding: 0 0 10px;
}

.ul-reflection-card > header {
  padding: 0 0 15px;
}

/* Personal review: user-authored evidence and explicit Codex handoff. */
.ul-training-note-gate {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  margin: 0 0 20px;
  padding: 16px 18px;
  border: 2px solid #8a642d;
  background: linear-gradient(135deg, #1c2a3d, #132237);
  box-shadow: inset 0 -4px 0 rgba(0, 0, 0, .24);
}

.ul-training-note-gate span {
  color: var(--ul-gold);
  font-size: 10px;
  letter-spacing: .1em;
}

.ul-training-note-gate strong {
  display: block;
  margin: 3px 0 0;
  color: var(--ul-ink);
  font-size: 18px;
}

.ul-training-note-gate p {
  margin: 6px 0 0;
  color: var(--ul-muted);
  line-height: 1.65;
}

.ul-training-note-gate.is-ready {
  border-color: var(--ul-green);
}

.ul-review-dashboard {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.ul-review-dashboard > div {
  min-width: 0;
  padding: 13px 14px;
  border: 2px solid #35526f;
  background: #0d1b2e;
  box-shadow: inset 0 -4px 0 rgba(0, 0, 0, .22);
}

.ul-review-dashboard span {
  display: block;
  color: var(--ul-muted);
  font-size: 10px;
  letter-spacing: .06em;
}

.ul-review-dashboard strong {
  display: block;
  margin-top: 7px;
  color: var(--ul-cyan);
  font-size: 25px;
}

.ul-review-dashboard .is-warn {
  border-color: #a45d43;
}

.ul-review-dashboard .is-warn strong {
  color: var(--ul-red);
}

.ul-review-dashboard .is-good {
  border-color: #2c8c68;
}

.ul-review-dashboard .is-good strong {
  color: var(--ul-green);
}

.ul-review-handoff {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  margin-bottom: 14px;
  padding: 14px 16px;
  border: 2px solid #8a642d;
  background: #231d18;
}

.ul-review-handoff > span {
  padding: 6px 8px;
  border: 1px solid var(--ul-gold);
  color: var(--ul-gold);
  font-size: 10px;
  letter-spacing: .08em;
}

.ul-review-handoff p {
  margin: 0;
  color: var(--ul-muted);
  line-height: 1.65;
}

.ul-review-handoff strong {
  color: var(--ul-ink);
}

.ul-review-training-evidence {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  gap: 12px;
  align-items: center;
  margin-bottom: 14px;
  padding: 12px 14px;
  border: 2px solid #35526f;
  background: #0d1b2e;
}

.ul-review-training-evidence > span {
  color: var(--ul-cyan);
  font-size: 10px;
  letter-spacing: .08em;
}

.ul-review-training-evidence strong {
  color: var(--ul-ink);
}

.ul-review-training-evidence small {
  color: var(--ul-muted);
}

.ul-review-signals {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.ul-review-signal {
  min-width: 0;
  padding: 15px;
  border: 2px solid #3c526a;
  background: #111f32;
}

.ul-review-signal > header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  padding-bottom: 10px;
  border-bottom: 1px solid #34485f;
  color: var(--ul-muted);
  font-size: 11px;
}

.ul-review-signal > header strong {
  color: var(--ul-gold);
}

.ul-review-signal > div {
  padding: 10px 0;
  border-bottom: 1px solid rgba(53, 80, 110, .55);
}

.ul-review-signal > div em {
  color: var(--ul-cyan);
  font-style: normal;
  font-size: 10px;
}

.ul-review-signal > div p {
  margin: 5px 0 0;
  color: var(--ul-ink);
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.ul-review-signal > .ul-button {
  margin-top: 12px;
}

.ul-review-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin: 20px 0 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid #304866;
}

.ul-review-toolbar > div {
  display: flex;
  gap: 5px;
  padding: 4px;
  border: 2px solid #304866;
  background: #07111d;
}

.ul-review-filter {
  min-height: 40px;
  padding: 8px 15px;
  border: 0;
  color: var(--ul-muted);
  background: transparent;
}

.ul-review-filter.is-active {
  color: #06111c;
  background: var(--ul-cyan);
  box-shadow: inset -3px -3px 0 #21949b;
}

.ul-review-list {
  display: grid;
  gap: 14px;
}

.ul-review-card {
  min-width: 0;
  padding: 18px;
  border: 2px solid #35526f;
  border-left-width: 6px;
  background: #102036;
  box-shadow: inset 0 -5px 0 rgba(0, 0, 0, .22);
}

.ul-review-card.is-pending {
  border-left-color: var(--ul-cyan);
}

.ul-review-card.is-revision {
  border-left-color: var(--ul-red);
}

.ul-review-card.is-confirmed {
  border-left-color: var(--ul-green);
}

.ul-review-card > header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  color: var(--ul-cyan);
  font-size: 11px;
}

.ul-review-card > header em {
  padding: 4px 7px;
  border: 1px solid currentColor;
  color: var(--ul-gold);
  font-style: normal;
}

.ul-review-card.is-revision > header em {
  color: var(--ul-red);
}

.ul-review-card.is-confirmed > header em {
  color: var(--ul-green);
}

.ul-review-card h3 {
  margin: 12px 0;
  color: var(--ul-ink);
  font-size: 19px;
  line-height: 1.45;
}

.ul-review-answer,
.ul-review-empty-answer,
.ul-review-doubt,
.ul-review-feedback {
  margin: 12px 0;
  padding: 13px 14px;
  border-left: 4px solid var(--ul-cyan);
  background: #182b42;
}

.ul-review-answer b,
.ul-review-empty-answer b,
.ul-review-doubt b,
.ul-review-feedback b {
  color: var(--ul-gold);
  font-size: 11px;
}

.ul-review-answer p,
.ul-review-empty-answer p,
.ul-review-doubt p,
.ul-review-feedback p {
  margin: 7px 0 0;
  color: var(--ul-ink);
  line-height: 1.75;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.ul-review-doubt {
  border-left-color: var(--ul-gold);
  background: #272319;
}

.ul-review-feedback {
  border-left-color: var(--ul-green);
  background: #142b29;
}

.ul-review-feedback.is-stale {
  border-left-color: #7c8ca3;
  background: #1a2431;
}

.ul-review-feedback small {
  display: block;
  margin-top: 9px;
  color: var(--ul-muted);
  line-height: 1.55;
}

.ul-review-receipt {
  margin-top: 15px;
  border: 2px solid #304866;
  background: #0b1727;
}

.ul-review-receipt > summary {
  padding: 12px 14px;
  color: var(--ul-cyan);
  cursor: pointer;
}

.ul-review-receipt[open] {
  padding: 0 14px 14px;
}

.ul-review-receipt[open] > summary {
  margin: 0 -14px 12px;
  border-bottom: 1px solid #304866;
}

.ul-review-receipt p,
.ul-review-receipt pre {
  color: var(--ul-muted);
  line-height: 1.6;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.ul-review-receipt pre {
  padding: 10px;
  border: 1px solid #304866;
  background: #07111d;
  font-family: inherit;
}

.ul-review-receipt label {
  display: block;
  color: var(--ul-gold);
  font-size: 11px;
}

.ul-review-receipt textarea {
  box-sizing: border-box;
  width: 100%;
  min-height: 126px;
  margin: 8px 0 12px;
  padding: 12px;
  resize: vertical;
  border: 2px solid #35526f;
  border-radius: 0;
  color: var(--ul-ink);
  background: #07111d;
  font: inherit;
  line-height: 1.6;
}

.ul-review-footer {
  margin-top: 20px;
}

#pg-gates .ul-home-flow {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

#pg-gates .ul-home-step.is-current {
  border-color: var(--ul-gold);
  color: #5c351a;
  background: #f1cf86;
  box-shadow: inset 0 0 0 1px #fff0ba;
}

@media (max-width: 840px) {
  .ul-training-note-gate {
    grid-template-columns: 1fr;
  }

  .ul-review-dashboard {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ul-review-signals,
  .ul-review-training-evidence {
    grid-template-columns: 1fr;
  }

  .ul-review-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .ul-review-toolbar > .ul-button {
    width: 100%;
  }

  #pg-gates .ul-home-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .ul-level-tabs {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 7px;
    scroll-snap-type: x proximity;
    overscroll-behavior-inline: contain;
  }

  .ul-level-tab {
    flex: 0 0 172px;
    scroll-snap-align: start;
  }

  .ul-review-handoff {
    grid-template-columns: 1fr;
  }

  .ul-review-handoff > span {
    width: max-content;
  }

  .ul-review-card {
    padding: 14px 12px;
  }

  .ul-review-toolbar > div,
  .ul-review-filter {
    width: 100%;
  }

  .ul-review-filter {
    flex: 1;
  }
}

@media (max-width: 360px) {
  .ul-nav button {
    padding: 8px 2px;
    font-size: 13px;
    white-space: nowrap;
  }

  .ul-page-head h2 {
    font-size: 23px;
    word-break: keep-all;
    overflow-wrap: anywhere;
  }
}