.learner-agent {
  --laj-blue: #3158e7;
  --laj-blue-soft: #eef3ff;
  --laj-ink: #172033;
  --laj-muted: #667085;
  --laj-line: #dfe5ef;
  --laj-canvas: #f6f8fc;
  --laj-amber: #bf6b17;
  --laj-amber-soft: #fff6e9;
  --laj-green: #138768;
  --laj-green-soft: #ebf8f3;
  margin: 0 0 20px;
  border: 1px solid var(--laj-line);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 12px 34px rgba(31, 48, 82, .07);
  color: var(--laj-ink);
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  overflow: hidden;
}

.learner-agent *,
.learner-agent *::before,
.learner-agent *::after { box-sizing: border-box; }

.learner-agent button { font: inherit; }

.learner-agent__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 24px 18px;
  border-bottom: 1px solid #e8ecf3;
}

.learner-agent__eyebrow {
  display: block;
  margin-bottom: 5px;
  color: var(--laj-blue);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .14em;
}

.learner-agent__header h2 {
  margin: 0;
  color: var(--laj-ink);
  font-size: clamp(20px, 2vw, 27px);
  font-weight: 780;
  letter-spacing: -.02em;
}

.learner-agent__header p {
  margin: 7px 0 0;
  color: var(--laj-muted);
  font-size: 12px;
  line-height: 1.65;
  text-wrap: pretty;
}

.learner-agent__version {
  display: grid;
  grid-template-columns: auto 18px;
  min-width: 142px;
  padding: 10px 12px 10px 14px;
  border: 1px solid #d9e1ef;
  border-radius: 11px;
  background: #fbfcfe;
  color: var(--laj-ink);
  cursor: pointer;
  text-align: left;
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}

.learner-agent__version small,
.learner-agent__version strong { display: block; grid-column: 1; }
.learner-agent__version small { color: #98a2b3; font-size: 9px; }
.learner-agent__version strong { margin-top: 2px; font-size: 14px; }
.learner-agent__version i { grid-column: 2; grid-row: 1 / 3; align-self: center; color: var(--laj-blue); font-size: 18px; }
.learner-agent__version:hover { border-color: #aebef3; box-shadow: 0 7px 18px rgba(49, 88, 231, .1); transform: translateY(-1px); }

.learner-agent__stages {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 9px;
  padding: 18px 20px;
  background: var(--laj-canvas);
}

.learner-agent__stage {
  position: relative;
  display: flex;
  min-height: 194px;
  flex-direction: column;
  align-items: flex-start;
  padding: 14px;
  border: 1px solid #dfe4ec;
  border-radius: 13px;
  background: #fff;
  color: var(--laj-ink);
  cursor: pointer;
  text-align: left;
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}

.learner-agent__stage::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  border-radius: 13px 13px 0 0;
  background: #aab4c5;
}

.learner-agent__stage.is-core::before { background: var(--laj-blue); }
.learner-agent__stage.is-remedial::before,
.learner-agent__stage.is-human_review::before { background: var(--laj-amber); }
.learner-agent__stage.is-done::before { background: var(--laj-green); }

.learner-agent__stage:hover {
  border-color: #aebef3;
  box-shadow: 0 9px 22px rgba(49, 88, 231, .1);
  transform: translateY(-2px);
}

.learner-agent__stage-top {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.learner-agent__stage-top span {
  color: var(--laj-blue);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .08em;
}

.learner-agent__stage-top small { color: #98a2b3; font-size: 9px; }

.learner-agent__stage > i:not(.learner-agent__stage-arrow) {
  display: grid;
  width: 34px;
  height: 34px;
  margin-top: 16px;
  place-items: center;
  border-radius: 10px;
  background: var(--laj-blue-soft);
  color: var(--laj-blue);
  font-size: 18px;
}

.learner-agent__stage.is-remedial > i:not(.learner-agent__stage-arrow),
.learner-agent__stage.is-human_review > i:not(.learner-agent__stage-arrow) { background: var(--laj-amber-soft); color: var(--laj-amber); }
.learner-agent__stage.is-done > i:not(.learner-agent__stage-arrow) { background: var(--laj-green-soft); color: var(--laj-green); }

.learner-agent__stage h3 {
  margin: 12px 0 0;
  color: var(--laj-ink);
  font-size: 13px;
  font-weight: 750;
  line-height: 1.4;
}

.learner-agent__stage p {
  flex: 1;
  margin: 5px 0 11px;
  color: var(--laj-muted);
  font-size: 10px;
  line-height: 1.55;
  text-wrap: pretty;
}

.learner-agent__stage > strong {
  display: inline-flex;
  min-height: 25px;
  align-items: center;
  padding: 4px 8px;
  border-radius: 999px;
  background: #f2f4f7;
  color: #667085;
  font-size: 9px;
  font-weight: 700;
}

.learner-agent__stage.is-active > strong { background: var(--laj-blue-soft); color: var(--laj-blue); }
.learner-agent__stage.is-remedial > strong,
.learner-agent__stage.is-human_review > strong { background: var(--laj-amber-soft); color: var(--laj-amber); }
.learner-agent__stage.is-done > strong { background: var(--laj-green-soft); color: var(--laj-green); }

.learner-agent__stage-arrow {
  position: absolute;
  top: 50%;
  right: -17px;
  z-index: 2;
  width: 24px;
  height: 24px;
  border: 1px solid #dfe5ef;
  border-radius: 50%;
  background: #fff;
  color: #9ba6b7;
  font-size: 16px;
  line-height: 22px;
  text-align: center;
  transform: translateY(-50%);
}

.learner-agent__decision-panel {
  display: grid;
  grid-template-columns: 48px minmax(280px, 1fr) minmax(320px, .8fr);
  gap: 16px;
  align-items: center;
  margin: 0 20px 16px;
  padding: 17px 18px;
  border: 1px solid #ead4b7;
  border-radius: 14px;
  background: var(--laj-amber-soft);
}

.learner-agent__decision-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 12px;
  background: #ffe3bd;
  color: var(--laj-amber);
  font-size: 22px;
}

.learner-agent__decision-mark.is-advanced,
.learner-agent__decision-mark.is-done { background: var(--laj-green-soft); color: var(--laj-green); }
.learner-agent__decision-mark.is-waiting { background: #edf0f5; color: #7c8798; }

.learner-agent__decision-copy small,
.learner-agent__compact-copy small { color: #a56c34; font-size: 9px; font-weight: 700; }
.learner-agent__decision-copy h3,
.learner-agent__compact-copy h3 { margin: 3px 0 0; color: var(--laj-ink); font-size: 16px; font-weight: 760; }
.learner-agent__decision-copy p,
.learner-agent__compact-copy p { margin: 5px 0 0; color: #6c6257; font-size: 11px; line-height: 1.6; text-wrap: pretty; }

.learner-agent__steps { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 9px; }
.learner-agent__steps span { padding: 4px 7px; border: 1px solid #ead4b7; border-radius: 7px; background: rgba(255,255,255,.68); color: #815027; font-size: 9px; }

.learner-agent__actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
}

.learner-agent__actions button {
  display: flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid #e1c59e;
  border-radius: 9px;
  background: rgba(255,255,255,.82);
  color: #744b25;
  cursor: pointer;
  font-size: 10px;
  font-weight: 650;
  transition: background .18s ease, border-color .18s ease;
}

.learner-agent__actions button:hover { border-color: #cb914e; background: #fff; }

.learner-agent__feedback {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 13px 20px;
  border-top: 1px solid #d9eee6;
  background: var(--laj-green-soft);
}

.learner-agent__feedback > i { color: var(--laj-green); font-size: 21px; }
.learner-agent__feedback span { flex: 1; min-width: 0; }
.learner-agent__feedback small,
.learner-agent__feedback strong { display: block; }
.learner-agent__feedback small { color: #4b7c6d; font-size: 9px; }
.learner-agent__feedback strong { margin-top: 2px; color: #195e4c; font-size: 11px; }

.learner-agent__feedback button,
.learner-agent__compact-action {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  gap: 5px;
  padding: 7px 11px;
  border: 1px solid #aadcca;
  border-radius: 9px;
  background: #fff;
  color: var(--laj-green);
  cursor: pointer;
  font-size: 10px;
  font-weight: 700;
}

.learner-agent button:focus-visible {
  outline: 3px solid rgba(49, 88, 231, .28);
  outline-offset: 2px;
}

.learner-agent--compact {
  margin-top: 28px;
  border-color: rgba(118, 150, 204, .18);
  border-radius: 24px;
  box-shadow: 0 18px 48px rgba(63, 91, 134, .08);
}
.learner-agent--compact .learner-agent__header { padding: 20px 28px 14px; border-bottom: 0; }
.learner-agent--compact .learner-agent__eyebrow,
.learner-agent--compact .learner-agent__header p,
.learner-agent--compact .learner-agent__version { display: none; }
.learner-agent--compact .learner-agent__header h2 { font-size: 17px; font-weight: 720; }

.learner-agent__compact-flow {
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  align-items: start;
  padding: 4px 34px 25px;
  background: #fff;
}

.learner-agent__compact-stage {
  position: relative;
  min-width: 0;
  padding: 0 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 0;
  color: var(--laj-ink);
  background: transparent;
  cursor: pointer;
  text-align: center;
}
.learner-agent__compact-icon {
  position: relative;
  z-index: 2;
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border: 1px solid #dbe4ef;
  border-radius: 50%;
  color: #8a98ae;
  background: #f5f7fb;
  box-shadow: 0 0 0 8px #fff;
  transition: transform .2s ease, box-shadow .2s ease;
}
.learner-agent__compact-icon > i { font-size: 25px; }
.learner-agent__compact-icon > em {
  position: absolute;
  right: -2px;
  bottom: -1px;
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  border: 2px solid #fff;
  border-radius: 50%;
  color: #fff;
  background: #14b8a6;
  font-size: 11px;
  font-style: normal;
}
.learner-agent__compact-stage.is-done .learner-agent__compact-icon { border-color: #8ee1d8; color: #0bb7ad; background: #eafaf8; }
.learner-agent__compact-stage.is-active .learner-agent__compact-icon {
  width: 64px;
  height: 64px;
  margin-top: -4px;
  border: 6px solid #e2ebff;
  color: #fff;
  background: #356ff0;
  box-shadow: 0 0 0 2px #78a2fa, 0 0 0 10px #fff, 0 10px 24px rgba(47, 104, 229, .2);
}
.learner-agent__compact-stage:hover .learner-agent__compact-icon { transform: translateY(-3px); }
.learner-agent__compact-stage > strong { margin-top: 13px; overflow: hidden; color: #1b2944; font-size: 13px; font-weight: 720; text-overflow: ellipsis; white-space: nowrap; }
.learner-agent__compact-stage > small { margin-top: 5px; overflow: hidden; color: #8a96a9; font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.learner-agent__compact-connector {
  position: absolute;
  z-index: 1;
  top: 27px;
  left: calc(50% + 38px);
  width: calc(100% - 76px);
  height: 1px;
  overflow: visible;
  border-top: 1px dashed #c9d4e4;
  color: #aebbd0;
  font-size: 15px;
  line-height: 0;
  text-align: right;
}

@media (max-width: 1180px) {
  .learner-agent__stages { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .learner-agent__stage { min-height: 165px; }
  .learner-agent__stage-arrow { display: none; }
  .learner-agent__decision-panel { grid-template-columns: 44px minmax(0, 1fr); }
  .learner-agent__actions { grid-column: 1 / 3; grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .learner-agent__compact-flow { min-width: 880px; }
  .learner-agent--compact { overflow-x: auto; }
}

@media (max-width: 760px) {
  .learner-agent { border-radius: 14px; }
  .learner-agent__header { flex-direction: column; align-items: stretch; padding: 18px; }
  .learner-agent__header p { font-size: 11px; }
  .learner-agent__version { width: 100%; min-width: 0; }
  .learner-agent__stages { grid-template-columns: 1fr; padding: 14px; }
  .learner-agent__stage { min-height: 150px; }
  .learner-agent__decision-panel { grid-template-columns: 38px minmax(0, 1fr); margin: 0 14px 14px; padding: 14px; }
  .learner-agent__decision-mark { width: 38px; height: 38px; }
  .learner-agent__actions { grid-column: 1 / 3; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .learner-agent__feedback { align-items: flex-start; flex-wrap: wrap; padding: 12px 14px; }
  .learner-agent__feedback button { width: 100%; justify-content: center; }
  .learner-agent--compact .learner-agent__header { min-width: 880px; padding-left: 24px; }
  .learner-agent__compact-flow { padding-left: 18px; padding-right: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  .learner-agent *,
  .learner-agent *::before,
  .learner-agent *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}