:root {
  --paper: #f5f0e4;
  --paper-deep: #ebe3d2;
  --paper-light: #fbf8f0;
  --ink: #25332d;
  --ink-soft: #637069;
  --ink-faint: #90988f;
  --jade: #436b5d;
  --jade-soft: #dfe9df;
  --cinnabar: #b6533e;
  --cinnabar-soft: #f2ded7;
  --gold: #b68c4d;
  --line: rgba(41, 55, 48, 0.13);
  --line-strong: rgba(41, 55, 48, 0.22);
  --shadow: 0 18px 55px rgba(68, 58, 40, 0.09);
  --shadow-soft: 0 8px 26px rgba(68, 58, 40, 0.07);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 85% 8%, rgba(194, 210, 189, 0.4), transparent 28%),
    radial-gradient(circle at 4% 80%, rgba(227, 199, 164, 0.26), transparent 24%),
    var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select {
  font: inherit;
}

button {
  color: inherit;
}

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

button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid rgba(182, 83, 62, 0.55);
  outline-offset: 3px;
}

.page-wash {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.32;
  background-image:
    repeating-linear-gradient(90deg, transparent 0 95px, rgba(55, 63, 52, 0.025) 96px),
    repeating-linear-gradient(0deg, transparent 0 95px, rgba(55, 63, 52, 0.018) 96px);
  mask-image: linear-gradient(to bottom, black, transparent 90%);
}

.topbar {
  width: min(1580px, calc(100% - 48px));
  height: 84px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  color: inherit;
  text-decoration: none;
}

.brand-seal {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px 12px 12px 3px;
  color: #fff9ee;
  background: var(--cinnabar);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 24px;
  box-shadow: 0 7px 16px rgba(151, 64, 45, 0.2);
  transform: rotate(-2deg);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-copy strong {
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 23px;
  letter-spacing: 0.08em;
}

.brand-copy span {
  color: var(--ink-soft);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.topbar-note {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink-soft);
  font-size: 12px;
  letter-spacing: 0.05em;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #5b8a71;
  box-shadow: 0 0 0 5px rgba(91, 138, 113, 0.12);
}

.topbar-divider {
  width: 1px;
  height: 13px;
  background: var(--line-strong);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.quiet-button,
.primary-button,
.tool-button,
.icon-button,
.learned-button,
.filter-chip,
.send-button,
.coach-actions button {
  border: 0;
  cursor: pointer;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
}

.quiet-button,
.primary-button {
  min-height: 40px;
  padding: 0 17px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.quiet-button {
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--line);
}

.quiet-button:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.86);
}

.primary-button {
  color: #fffaf2;
  background: var(--ink);
  box-shadow: 0 7px 18px rgba(37, 51, 45, 0.16);
}

.primary-button:hover {
  transform: translateY(-1px);
  background: #17231e;
}

.quiet-button svg,
.primary-button svg,
.tool-button svg,
.icon-button svg,
.learned-button svg,
.send-button svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.app-layout {
  width: min(1580px, calc(100% - 48px));
  min-height: calc(100vh - 112px);
  margin: 0 auto 28px;
  display: grid;
  grid-template-columns: 288px minmax(0, 1fr);
  gap: 30px;
}

.library {
  position: sticky;
  top: 20px;
  align-self: start;
  height: calc(100vh - 42px);
  min-height: 680px;
  display: flex;
  flex-direction: column;
  padding: 23px 20px 16px;
  overflow: hidden;
  border: 1px solid rgba(46, 62, 53, 0.11);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(155deg, rgba(255, 255, 255, 0.64), rgba(249, 245, 234, 0.74)),
    var(--paper-light);
  box-shadow: var(--shadow);
}

.library-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--ink-faint);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.library h1 {
  margin: 0;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 31px;
  font-weight: 500;
  line-height: 1.24;
  letter-spacing: 0.02em;
}

.poem-count {
  flex: 0 0 auto;
  margin-top: 2px;
  padding: 5px 8px;
  border-radius: 999px;
  color: var(--cinnabar);
  background: var(--cinnabar-soft);
  font-size: 10px;
  font-weight: 700;
}

.search-box {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 13px;
  border-radius: 13px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.58);
}

.search-box:focus-within {
  border-color: rgba(67, 107, 93, 0.42);
  box-shadow: 0 0 0 4px rgba(67, 107, 93, 0.07);
}

.search-box svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--ink-faint);
  stroke-width: 1.8;
  stroke-linecap: round;
}

.search-box input {
  width: 100%;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font-size: 12px;
}

.search-box input::placeholder {
  color: #9ca39c;
}

.filter-group {
  display: flex;
  gap: 6px;
  margin: 13px 0 14px;
}

.filter-chip {
  flex: 1;
  min-height: 30px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--ink-soft);
  background: transparent;
  font-size: 10px;
}

.filter-chip:hover {
  background: rgba(255, 255, 255, 0.55);
}

.filter-chip.active {
  color: #fff;
  border-color: var(--jade);
  background: var(--jade);
  box-shadow: 0 4px 10px rgba(67, 107, 93, 0.16);
}

.library-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 3px 10px;
  color: var(--ink-faint);
  font-size: 9px;
  letter-spacing: 0.03em;
}

.poem-list {
  flex: 1;
  min-height: 0;
  padding-right: 3px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(47, 66, 56, 0.16) transparent;
}

.poem-list::-webkit-scrollbar {
  width: 4px;
}

.poem-list::-webkit-scrollbar-thumb {
  border-radius: 99px;
  background: rgba(47, 66, 56, 0.15);
}

.poem-item {
  position: relative;
  width: 100%;
  min-height: 52px;
  margin-bottom: 4px;
  padding: 10px 12px 10px 39px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 12px;
  text-align: left;
  background: transparent;
}

.poem-item::before {
  content: attr(data-index);
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  color: #a2a69f;
  font-family: Georgia, serif;
  font-size: 10px;
  font-style: italic;
}

.poem-item:hover {
  background: rgba(255, 255, 255, 0.55);
}

.poem-item.active {
  border-color: rgba(67, 107, 93, 0.15);
  background:
    linear-gradient(90deg, rgba(221, 234, 222, 0.9), rgba(241, 246, 238, 0.65));
}

.poem-item.active::before {
  color: var(--cinnabar);
}

.poem-item-main {
  min-width: 0;
}

.poem-item-title {
  display: block;
  margin-bottom: 3px;
  overflow: hidden;
  color: var(--ink);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 16px;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.poem-item-meta {
  display: block;
  overflow: hidden;
  color: var(--ink-faint);
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.poem-item-badge {
  flex: 0 0 auto;
  color: var(--jade);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.empty-list {
  padding: 40px 18px;
  color: var(--ink-faint);
  text-align: center;
  font-size: 11px;
  line-height: 1.8;
}

.library-foot {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  padding: 14px 6px 1px;
  border-top: 1px solid var(--line);
}

.seal-ring {
  width: 35px;
  height: 35px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border: 1px solid rgba(182, 83, 62, 0.45);
  border-radius: 50%;
  color: var(--cinnabar);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 17px;
}

.library-foot p {
  margin: 0;
  color: var(--ink-faint);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 11px;
  line-height: 1.55;
}

.main-content {
  min-width: 0;
  padding: 10px 0 40px;
}

.poem-header {
  min-height: 102px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 8px 4px 23px;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 11px;
  color: var(--ink-faint);
  font-size: 9px;
  letter-spacing: 0.04em;
}

.breadcrumbs span:nth-child(even) {
  opacity: 0.45;
}

.title-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.title-row h2 {
  max-width: 760px;
  margin: 0;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: clamp(34px, 4vw, 50px);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: 0.035em;
}

.dynasty-mark {
  min-width: 27px;
  height: 27px;
  padding: 0 7px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(182, 83, 62, 0.4);
  border-radius: 7px;
  color: var(--cinnabar);
  font-size: 9px;
  font-weight: 700;
}

.poem-author {
  margin: 7px 0 0 2px;
  color: var(--ink-soft);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 13px;
  letter-spacing: 0.08em;
}

.reading-progress {
  width: 190px;
  padding-bottom: 3px;
}

.progress-copy {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  color: var(--ink-faint);
  font-size: 9px;
}

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

.progress-track {
  height: 3px;
  overflow: hidden;
  border-radius: 99px;
  background: rgba(45, 63, 54, 0.1);
}

.progress-track span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--jade), #7b9d80);
  transition: width 400ms ease;
}

.progress-steps {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  padding: 0 1px;
}

.progress-steps i {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: rgba(45, 63, 54, 0.16);
}

.progress-steps i.active {
  background: var(--cinnabar);
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(310px, 0.86fr) minmax(390px, 1.14fr);
  gap: 20px;
  align-items: stretch;
}

.paper-card,
.visual-card,
.evidence-card,
.notes-card,
.coach-card {
  border: 1px solid rgba(46, 62, 53, 0.11);
  border-radius: var(--radius-lg);
  background: rgba(251, 248, 240, 0.84);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(12px);
}

.poem-card {
  position: relative;
  min-height: 590px;
  padding: 25px 30px 20px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.poem-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 180px;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 15% 100%, rgba(93, 124, 91, 0.1), transparent 55%),
    linear-gradient(to top, rgba(227, 219, 201, 0.22), transparent);
}

.card-topline,
.section-heading,
.evidence-head,
.visual-head,
.coach-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.section-label {
  color: var(--ink-faint);
  font-size: 9px;
  letter-spacing: 0.04em;
}

.icon-button {
  width: 34px;
  height: 34px;
  padding: 0;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.48);
}

.icon-button:hover {
  color: var(--ink);
  background: #fff;
}

.poem-text {
  position: relative;
  z-index: 1;
  flex: 1;
  margin: 32px 0 25px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  font-family: "STKaiti", "KaiTi", "Kaiti SC", serif;
}

.poem-line {
  position: relative;
  margin: 0;
  color: #23332b;
  font-size: clamp(23px, 2.1vw, 30px);
  line-height: 1.55;
  letter-spacing: 0.12em;
  text-wrap: balance;
}

.poem-line::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 0.62em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(182, 83, 62, 0.32);
  opacity: 0;
}

.poem-line:first-child::before {
  opacity: 1;
}

.term-highlight {
  position: relative;
  display: inline;
  padding: 1px 2px 2px;
  border: 0;
  border-radius: 5px;
  color: inherit;
  background:
    linear-gradient(to top, var(--note-color) 0 32%, transparent 32%);
  cursor: pointer;
  font: inherit;
  letter-spacing: inherit;
  transition:
    background-color 180ms ease,
    color 180ms ease;
}

.term-highlight:hover,
.term-highlight.active {
  color: var(--ink);
  background:
    linear-gradient(to top, var(--note-color) 0 58%, rgba(255, 255, 255, 0.35) 58%);
}

.poem-summary {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 29px 1fr;
  gap: 12px;
  align-items: flex-start;
  padding: 15px 16px;
  border: 1px solid rgba(67, 107, 93, 0.11);
  border-radius: 15px;
  background: rgba(229, 236, 224, 0.55);
}

.summary-mark {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--jade);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 15px;
}

.poem-summary p {
  margin: 0;
  color: #55645c;
  font-size: 11px;
  line-height: 1.85;
}

.poem-card-footer {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 19px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.legend span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--ink-faint);
  font-size: 8px;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.dot.meaning { background: #e5b68f; }
.dot.image { background: #8fbba1; }
.dot.device { background: #a9a1c9; }
.dot.context { background: #d2b05e; }

.learned-button {
  min-height: 34px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: transparent;
  font-size: 9px;
  font-weight: 700;
}

.learned-button:hover {
  background: #fff;
}

.learned-button.is-learned {
  color: #fff;
  border-color: var(--jade);
  background: var(--jade);
}

.visual-stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.visual-card {
  overflow: hidden;
}

.visual-head {
  min-height: 66px;
  padding: 18px 21px 14px;
}

.visual-head h3,
.evidence-head h3,
.section-heading h3,
.coach-top h3 {
  margin: 0;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.visual-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 5px;
}

.visual-badges span {
  min-height: 23px;
  padding: 0 8px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.37);
  font-size: 8px;
}

.canvas-shell {
  position: relative;
  margin: 0 12px;
  overflow: hidden;
  border-radius: 18px;
  background: #dce4dc;
  box-shadow: inset 0 0 0 1px rgba(34, 55, 45, 0.08);
  aspect-ratio: 1100 / 690;
}

#sceneCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.canvas-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(to top, rgba(17, 31, 25, 0.27), transparent 35%),
    radial-gradient(circle at center, transparent 42%, rgba(20, 30, 26, 0.14) 100%);
}

.canvas-quote {
  position: absolute;
  left: 22px;
  bottom: 19px;
  z-index: 2;
  max-width: calc(100% - 44px);
  color: #fffaf1;
  text-shadow: 0 2px 15px rgba(20, 28, 24, 0.4);
}

.canvas-focus {
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 2;
  padding: 8px 11px;
  border: 1px solid rgba(255, 250, 240, 0.24);
  border-radius: 10px;
  color: #fffaf1;
  background: rgba(28, 43, 36, 0.32);
  backdrop-filter: blur(7px);
  box-shadow: 0 5px 18px rgba(20, 30, 25, 0.12);
}

.canvas-focus span {
  display: block;
  margin-bottom: 2px;
  color: rgba(255, 250, 241, 0.6);
  font-size: 7px;
  letter-spacing: 0.1em;
}

.canvas-focus strong {
  display: block;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.05em;
}

.canvas-review-state {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 2;
  padding: 6px 9px;
  border-radius: 7px;
  color: rgba(255, 250, 240, 0.82);
  background: rgba(28, 43, 36, 0.36);
  backdrop-filter: blur(7px);
  font-size: 7px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.canvas-review-state.approved {
  color: #eff9ef;
  background: rgba(67, 117, 83, 0.76);
}

.canvas-review-state.revise {
  color: #fff4d2;
  background: rgba(156, 113, 42, 0.78);
}

.canvas-review-state.flagged {
  color: #fff4d2;
  background: rgba(156, 113, 42, 0.72);
}

.canvas-review-state.rejected {
  color: #fff3ed;
  background: rgba(162, 66, 47, 0.8);
}

.canvas-quote span {
  display: block;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: clamp(17px, 2vw, 23px);
  letter-spacing: 0.1em;
}

.canvas-quote small {
  display: block;
  margin-top: 5px;
  color: rgba(255, 250, 241, 0.72);
  font-size: 8px;
  letter-spacing: 0.08em;
}

.canvas-loading {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 12px;
  color: #f9f5e9;
  background: rgba(31, 47, 39, 0.73);
  backdrop-filter: blur(7px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 240ms ease;
}

.canvas-loading.visible {
  opacity: 1;
}

.canvas-loading span {
  width: 34px;
  height: 34px;
  border: 2px solid rgba(255, 255, 255, 0.22);
  border-top-color: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

.canvas-loading p {
  margin: 0;
  font-size: 10px;
  letter-spacing: 0.08em;
}

@keyframes spin {
  to { transform: rotate(1turn); }
}

.visual-toolbar {
  min-height: 62px;
  padding: 12px 20px 15px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.style-select {
  min-height: 36px;
  margin-right: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-faint);
  font-size: 9px;
}

.style-select select {
  min-height: 34px;
  padding: 0 28px 0 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  outline: 0;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.52);
  font-size: 10px;
}

.tool-button {
  min-height: 35px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.46);
  font-size: 9px;
  font-weight: 700;
}

.tool-button:hover {
  color: var(--ink);
  background: #fff;
}

.tool-button.icon-only {
  width: 35px;
  padding: 0;
}

.evidence-card {
  padding: 20px 22px 19px;
}

.evidence-head {
  margin-bottom: 14px;
}

.evidence-head h3 {
  font-size: 20px;
}

.evidence-count {
  padding: 5px 8px;
  border-radius: 999px;
  color: var(--jade);
  background: var(--jade-soft);
  font-size: 8px;
  font-weight: 700;
}

.scene-background {
  margin-bottom: 13px;
  color: var(--ink-soft);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 13px;
  line-height: 1.8;
}

.evidence-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.evidence-pill {
  min-height: 30px;
  padding: 6px 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(67, 107, 93, 0.12);
  border-radius: 9px;
  color: var(--ink-soft);
  background: rgba(225, 235, 224, 0.5);
  font-size: 9px;
}

.evidence-pill strong {
  color: var(--ink);
  font-weight: 700;
}

.evidence-pill q {
  color: var(--ink-faint);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 10px;
}

.artistic-note {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 9px;
  align-items: start;
  margin-top: 14px;
  padding-top: 13px;
  border-top: 1px dashed rgba(46, 62, 53, 0.14);
}

.artistic-note span {
  width: 23px;
  height: 23px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--gold);
  background: rgba(182, 140, 77, 0.12);
  font-size: 9px;
  font-weight: 700;
}

.artistic-note p {
  margin: 1px 0 0;
  color: var(--ink-faint);
  font-size: 9px;
  line-height: 1.65;
}

.learning-grid {
  display: grid;
  grid-template-columns: minmax(310px, 0.84fr) minmax(390px, 1.16fr);
  gap: 20px;
  margin-top: 20px;
}

.line-visual-card {
  margin-top: 20px;
  padding: 21px 24px 22px;
  overflow: hidden;
  border: 1px solid rgba(46, 62, 53, 0.11);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(120deg, rgba(235, 241, 230, 0.48), rgba(251, 248, 240, 0.82)),
    rgba(251, 248, 240, 0.84);
  box-shadow: var(--shadow-soft);
}

.line-visual-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 15px;
}

.line-visual-head h3 {
  margin: 0;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.line-visual-head > p {
  max-width: 410px;
  margin: 0 0 2px;
  color: var(--ink-faint);
  font-size: 9px;
  line-height: 1.65;
  text-align: right;
}

.line-visual-list {
  display: flex;
  gap: 9px;
  padding: 2px 2px 7px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(67, 107, 93, 0.18) transparent;
}

.line-visual-list::-webkit-scrollbar {
  height: 4px;
}

.line-visual-list::-webkit-scrollbar-thumb {
  border-radius: 99px;
  background: rgba(67, 107, 93, 0.18);
}

.line-visual-item {
  position: relative;
  width: 205px;
  min-width: 205px;
  min-height: 102px;
  padding: 12px 13px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  text-align: left;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.line-visual-item:hover {
  transform: translateY(-2px);
  border-color: rgba(67, 107, 93, 0.27);
  background: rgba(255, 255, 255, 0.72);
}

.line-visual-item.active {
  border-color: rgba(182, 83, 62, 0.28);
  background: rgba(247, 238, 225, 0.82);
  box-shadow: 0 7px 18px rgba(68, 58, 40, 0.07);
}

.line-review-state {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
  padding: 3px 6px;
  border-radius: 6px;
  font-size: 7px;
  font-weight: 700;
}

.line-review-state.approved {
  color: #477457;
  background: rgba(107, 153, 120, 0.16);
}

.line-review-state.revise {
  color: #8d6b2e;
  background: rgba(195, 148, 67, 0.18);
}

.line-review-state.rejected {
  color: var(--cinnabar);
  background: var(--cinnabar-soft);
}

.line-review-state.flagged {
  color: #8d6b2e;
  background: rgba(195, 148, 67, 0.18);
}

.line-number {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 8px;
  color: var(--cinnabar);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.07em;
}

.line-number::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
}

.line-visual-text {
  position: relative;
  z-index: 1;
  display: block;
  margin-bottom: 7px;
  overflow: hidden;
  color: var(--ink);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 16px;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.line-visual-focus {
  position: relative;
  z-index: 1;
  display: block;
  color: var(--jade);
  font-size: 8px;
  line-height: 1.55;
}

.poem-line.active-line {
  color: #182820;
}

.poem-line.active-line::before {
  width: 8px;
  height: 8px;
  opacity: 1;
  box-shadow: 0 0 0 5px rgba(182, 83, 62, 0.08);
}

.notes-card,
.coach-card {
  min-height: 270px;
  padding: 22px 24px;
}

.section-heading {
  margin-bottom: 16px;
}

.section-heading > span {
  color: var(--ink-faint);
  font-size: 9px;
}

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

.note-item {
  width: 100%;
  padding: 11px 12px;
  display: grid;
  grid-template-columns: 6px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: 12px;
  text-align: left;
  background: rgba(255, 255, 255, 0.34);
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.note-item:hover,
.note-item.active {
  transform: translateY(-1px);
  border-color: rgba(67, 107, 93, 0.25);
  background: rgba(255, 255, 255, 0.74);
}

.note-swatch {
  width: 6px;
  height: 38px;
  border-radius: 99px;
  background: var(--note-color);
}

.note-copy strong {
  display: inline-block;
  margin-bottom: 3px;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 16px;
  font-weight: 600;
}

.note-copy p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 9px;
  line-height: 1.6;
}

.note-kind {
  padding: 3px 6px;
  border-radius: 999px;
  color: var(--ink-faint);
  background: rgba(44, 60, 51, 0.055);
  font-size: 8px;
}

.coach-card {
  display: flex;
  flex-direction: column;
}

.coach-top {
  justify-content: flex-start;
}

.coach-avatar {
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 13px 13px 13px 4px;
  color: #fff;
  background: var(--cinnabar);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 19px;
}

.coach-status {
  margin-left: auto;
  padding: 4px 7px;
  border-radius: 999px;
  color: var(--jade);
  background: var(--jade-soft);
  font-size: 8px;
}

.agent-trace {
  margin: 11px 0 9px;
  padding: 7px 10px;
  display: flex;
  align-items: center;
  gap: 9px;
  border: 1px solid rgba(67, 107, 93, 0.1);
  border-radius: 8px;
  background: rgba(225, 235, 224, 0.34);
}

.agent-trace span {
  color: var(--ink-faint);
  font-size: 7px;
  font-weight: 800;
  letter-spacing: 0.09em;
}

.agent-trace strong {
  color: var(--jade);
  font-size: 8px;
  font-weight: 600;
}

.coach-dialogue {
  flex: 1;
  min-height: 76px;
  max-height: 235px;
  margin: 14px 0 12px;
  padding: 14px 15px;
  overflow-y: auto;
  border-radius: 4px 15px 15px 15px;
  color: #536158;
  background: rgba(226, 235, 224, 0.54);
  font-size: 11px;
  line-height: 1.8;
}

.agent-message {
  max-width: 92%;
  margin-bottom: 9px;
  padding: 9px 11px;
  border-radius: 11px;
  white-space: pre-wrap;
  font-size: 10px;
  line-height: 1.75;
}

.agent-message:last-child {
  margin-bottom: 0;
}

.agent-message.assistant {
  border-bottom-left-radius: 3px;
  background: rgba(255, 255, 255, 0.62);
}

.agent-message.user {
  margin-left: auto;
  border-bottom-right-radius: 3px;
  color: #fdf9ef;
  background: var(--jade);
}

.agent-message.tool {
  max-width: 100%;
  padding: 5px 8px;
  color: var(--ink-faint);
  background: rgba(255, 255, 255, 0.36);
  font-size: 8px;
}

.agent-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 8px;
}

.agent-suggestions button {
  min-height: 26px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.42);
  font-size: 8px;
  cursor: pointer;
}

.agent-suggestions button:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.78);
}

.coach-dialogue strong {
  color: var(--ink);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 14px;
}

.answer-row {
  display: flex;
  gap: 8px;
}

.answer-row input {
  flex: 1;
  min-width: 0;
  height: 38px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 11px;
  outline: 0;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.54);
  font-size: 10px;
}

.answer-row input:focus {
  border-color: rgba(67, 107, 93, 0.38);
  box-shadow: 0 0 0 4px rgba(67, 107, 93, 0.06);
}

.send-button {
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 11px;
  color: #fff;
  background: var(--ink);
}

.send-button:hover {
  background: #14201a;
}

.coach-actions {
  display: flex;
  gap: 8px;
  margin-top: 9px;
}

.coach-actions button {
  min-height: 29px;
  padding: 0 10px;
  border-radius: 9px;
  color: var(--ink-soft);
  background: rgba(45, 62, 53, 0.055);
  font-size: 8px;
}

.coach-actions button:hover {
  color: var(--ink);
  background: rgba(45, 62, 53, 0.09);
}

.drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(24, 35, 29, 0.25);
  backdrop-filter: blur(2px);
}

.prompt-drawer,
.teacher-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 61;
  width: min(520px, 94vw);
  padding: 30px;
  overflow-y: auto;
  border-left: 1px solid rgba(47, 62, 53, 0.12);
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.7), transparent),
    var(--paper-light);
  box-shadow: -25px 0 70px rgba(30, 42, 35, 0.15);
  transform: translateX(102%);
  transition: transform 280ms cubic-bezier(0.2, 0.75, 0.2, 1);
}

.prompt-drawer.open,
.teacher-drawer.open {
  transform: translateX(0);
}

.teacher-drawer {
  width: min(620px, 96vw);
}

.drawer-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.drawer-head h2 {
  margin: 0;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 31px;
  font-weight: 500;
}

.drawer-intro {
  margin: 18px 0;
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.9;
}

.prompt-block {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(235, 236, 224, 0.52);
}

.prompt-kind-label {
  display: block;
  margin-bottom: 9px;
  color: var(--ink-faint);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.negative-prompt-block {
  margin-top: 10px;
  border-color: rgba(182, 83, 62, 0.16);
  background: rgba(242, 222, 215, 0.26);
}

.flux-prompt-block {
  margin-top: 10px;
  border-color: rgba(67, 107, 93, 0.18);
  background: rgba(223, 233, 223, 0.32);
}

.prompt-library-button {
  width: 100%;
  min-height: 37px;
  margin-top: 10px;
  border: 1px dashed rgba(67, 107, 93, 0.28);
  border-radius: 11px;
  color: var(--jade);
  background: rgba(223, 233, 223, 0.38);
  font-size: 9px;
  font-weight: 700;
  cursor: pointer;
}

.prompt-library-button:hover {
  background: rgba(223, 233, 223, 0.72);
}

.prompt-block pre {
  margin: 0;
  white-space: pre-wrap;
  color: #36473e;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 11px;
  line-height: 1.85;
}

.copy-button {
  margin-top: 16px;
}

.prompt-rules {
  margin-top: 18px;
  padding: 15px 16px;
  border-left: 3px solid rgba(182, 83, 62, 0.5);
  background: rgba(242, 222, 215, 0.32);
}

.prompt-rules strong {
  font-size: 10px;
}

.prompt-rules p {
  margin: 6px 0 0;
  color: var(--ink-soft);
  font-size: 10px;
  line-height: 1.75;
}

.teacher-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 20px 0 18px;
}

.teacher-meta span {
  min-height: 28px;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.42);
  font-size: 9px;
}

.cloud-sync-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: -5px 0 14px;
  padding: 11px 12px;
  border: 1px solid rgba(67, 107, 93, 0.12);
  border-radius: 12px;
  background: rgba(225, 235, 224, 0.44);
}

.cloud-sync-bar div {
  min-width: 0;
}

.cloud-sync-bar strong {
  display: block;
  color: var(--jade);
  font-size: 9px;
}

.cloud-sync-bar span {
  display: block;
  margin-top: 2px;
  overflow: hidden;
  color: var(--ink-faint);
  font-size: 8px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cloud-sync-bar .quiet-button {
  min-height: 30px;
  flex: 0 0 auto;
  padding-inline: 10px;
  font-size: 8px;
}

.teacher-content {
  display: grid;
  gap: 12px;
}

.teacher-section {
  padding: 16px 17px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.42);
}

.teacher-section h3 {
  margin: 0 0 9px;
  color: var(--ink);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 18px;
  font-weight: 600;
}

.teacher-section p,
.teacher-section li {
  color: var(--ink-soft);
  font-size: 10px;
  line-height: 1.8;
}

.teacher-section p {
  margin: 0;
}

.teacher-section ul {
  margin: 0;
  padding-left: 18px;
}

.teacher-line-map {
  display: grid;
  gap: 7px;
}

.teacher-line-row {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 8px;
  align-items: start;
  padding: 8px 9px;
  border-radius: 9px;
  background: rgba(225, 235, 224, 0.42);
}

.teacher-line-row b {
  color: var(--cinnabar);
  font-family: Georgia, serif;
  font-size: 10px;
}

.teacher-line-row span {
  color: var(--ink-soft);
  font-size: 9px;
  line-height: 1.65;
}

.teacher-line-row strong {
  display: block;
  margin-bottom: 2px;
  color: var(--ink);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 14px;
  font-weight: 600;
}

.teacher-actions {
  display: flex;
  gap: 9px;
  margin-top: 18px;
}

.video-dialog-backdrop {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: grid;
  place-items: center;
  padding: 22px;
  background: rgba(22, 33, 27, 0.42);
  backdrop-filter: blur(5px);
}

.video-dialog {
  width: min(810px, 96vw);
  max-height: calc(100vh - 44px);
  padding: 23px;
  overflow-y: auto;
  border: 1px solid rgba(43, 60, 51, 0.13);
  border-radius: 24px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.76), transparent),
    var(--paper-light);
  box-shadow: 0 30px 90px rgba(30, 42, 35, 0.25);
}

.video-dialog-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 15px;
}

.video-dialog-head h2 {
  margin: 0;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 28px;
  font-weight: 500;
}

.video-preview-shell {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  background: #22352d;
  aspect-ratio: 16 / 9;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

#videoPreviewCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.video-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 9px;
  color: rgba(255, 250, 240, 0.8);
  background: rgba(31, 48, 40, 0.66);
  text-align: center;
  transition: opacity 180ms ease;
}

.video-empty.hidden {
  opacity: 0;
  pointer-events: none;
}

.video-empty span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 250, 240, 0.5);
  border-radius: 50%;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 21px;
}

.video-empty p {
  max-width: 290px;
  margin: 0;
  font-size: 9px;
  line-height: 1.7;
}

.video-info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 13px;
}

.video-info > div {
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.36);
}

.video-info span,
.video-progress-copy span {
  color: var(--ink-faint);
  font-size: 8px;
}

.video-info strong {
  color: var(--ink);
  font-size: 10px;
}

.video-progress {
  margin-top: 13px;
}

.video-progress-copy {
  display: flex;
  justify-content: space-between;
  margin-bottom: 7px;
}

.video-progress-copy strong {
  color: var(--ink);
  font-size: 9px;
}

.video-progress-track {
  height: 4px;
  overflow: hidden;
  border-radius: 99px;
  background: rgba(44, 61, 52, 0.09);
}

.video-progress-track span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--jade), var(--cinnabar));
  transition: width 160ms linear;
}

.video-note {
  margin: 12px 0 0;
  color: var(--ink-faint);
  font-size: 8px;
  line-height: 1.65;
}

.video-actions {
  display: flex;
  justify-content: flex-end;
  gap: 9px;
  margin-top: 15px;
}

.review-backdrop {
  position: fixed;
  inset: 0;
  z-index: 75;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(20, 31, 25, 0.48);
  backdrop-filter: blur(6px);
}

.review-dialog {
  width: min(1320px, 98vw);
  height: min(900px, calc(100vh - 36px));
  padding: 20px;
  overflow: hidden;
  border: 1px solid rgba(42, 59, 50, 0.14);
  border-radius: 24px;
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.82), transparent),
    var(--paper-light);
  box-shadow: 0 30px 100px rgba(22, 33, 27, 0.28);
}

.review-dialog-head {
  min-height: 62px;
  display: grid;
  grid-template-columns: 1fr auto 38px;
  align-items: start;
  gap: 20px;
  padding: 0 2px 14px;
}

.review-dialog-head h2 {
  margin: 0;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 29px;
  font-weight: 500;
}

.review-dialog-head > div > p:last-child {
  margin: 4px 0 0;
  color: var(--ink-faint);
  font-size: 9px;
}

.review-summary {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
  margin-top: 8px;
}

.review-summary span {
  min-height: 28px;
  padding: 0 9px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.44);
  font-size: 8px;
}

.review-summary b {
  color: var(--ink);
  font-size: 10px;
}

.review-layout {
  height: calc(100% - 76px);
  display: grid;
  grid-template-columns: 245px minmax(0, 1fr);
  gap: 14px;
}

.review-line-list {
  min-height: 0;
  padding: 7px;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(234, 239, 229, 0.48);
  scrollbar-width: thin;
}

.review-line-item {
  width: 100%;
  margin-bottom: 5px;
  padding: 10px 10px 10px 12px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 7px;
  align-items: center;
  border: 1px solid transparent;
  border-radius: 10px;
  text-align: left;
  background: transparent;
  cursor: pointer;
  transition:
    background-color 160ms ease,
    border-color 160ms ease;
}

.review-line-item:hover {
  background: rgba(255, 255, 255, 0.58);
}

.review-line-item.active {
  border-color: rgba(67, 107, 93, 0.2);
  background: rgba(255, 255, 255, 0.82);
}

.review-line-item strong {
  display: block;
  overflow: hidden;
  color: var(--ink);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.review-line-item small {
  display: block;
  margin-top: 3px;
  color: var(--ink-faint);
  font-size: 7px;
}

.review-state-dot {
  width: 9px;
  height: 9px;
  border: 2px solid rgba(45, 62, 53, 0.2);
  border-radius: 50%;
  background: transparent;
}

.review-state-dot.approved {
  border-color: #6b9978;
  background: #6b9978;
  box-shadow: 0 0 0 4px rgba(107, 153, 120, 0.12);
}

.review-state-dot.revise {
  border-color: #c39443;
  background: #c39443;
  box-shadow: 0 0 0 4px rgba(195, 148, 67, 0.12);
}

.review-state-dot.rejected {
  border-color: var(--cinnabar);
  background: var(--cinnabar);
  box-shadow: 0 0 0 4px rgba(182, 83, 62, 0.12);
}

.review-main {
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: minmax(210px, 1.1fr) auto auto;
  gap: 10px;
  overflow-y: auto;
  scrollbar-width: thin;
}

.review-canvas-shell {
  position: relative;
  min-height: 210px;
  overflow: hidden;
  border-radius: 16px;
  background: #dce4dd;
}

.review-canvas-shell canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.review-canvas-shell::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(to top, rgba(18, 30, 24, 0.42), transparent 35%);
}

.review-canvas-label {
  position: absolute;
  left: 18px;
  bottom: 14px;
  z-index: 2;
  color: #fffaf0;
  text-shadow: 0 2px 12px rgba(18, 29, 23, 0.4);
}

.review-canvas-label span {
  display: block;
  margin-bottom: 3px;
  color: rgba(255, 250, 240, 0.7);
  font-size: 8px;
}

.review-canvas-label strong {
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 23px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.review-detail-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 10px;
}

.review-detail-card,
.review-decision {
  padding: 14px 15px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.44);
}

.review-detail-card h3,
.review-decision h3 {
  margin: 0 0 9px;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 18px;
  font-weight: 600;
}

.review-checks {
  display: grid;
  gap: 5px;
}

.review-check {
  display: grid;
  grid-template-columns: 9px 1fr;
  gap: 7px;
  align-items: start;
  color: var(--ink-soft);
  font-size: 8px;
  line-height: 1.55;
}

.review-check i {
  width: 7px;
  height: 7px;
  margin-top: 3px;
  border-radius: 50%;
  background: #6b9978;
}

.review-check.warn i {
  background: #c39443;
}

.review-check.risk i {
  background: var(--cinnabar);
}

.review-detail-card > p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 9px;
  line-height: 1.7;
}

.review-evidence {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 8px;
}

.review-evidence span {
  padding: 4px 7px;
  border-radius: 7px;
  color: var(--ink-soft);
  background: rgba(225, 235, 224, 0.54);
  font-size: 7px;
}

.review-decision-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.review-current-status {
  padding: 4px 8px;
  border-radius: 999px;
  color: var(--ink-faint);
  background: rgba(45, 62, 53, 0.07);
  font-size: 8px;
}

.review-current-status.approved {
  color: #477457;
  background: rgba(107, 153, 120, 0.14);
}

.review-current-status.revise {
  color: #8d6b2e;
  background: rgba(195, 148, 67, 0.15);
}

.review-current-status.rejected {
  color: var(--cinnabar);
  background: var(--cinnabar-soft);
}

.review-form-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 8px;
  margin-top: 9px;
}

.review-form-row label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--ink-faint);
  font-size: 8px;
}

.review-form-row input,
.review-form-row textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 9px;
  outline: 0;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.58);
  font-size: 9px;
}

.review-form-row input {
  height: 34px;
  padding: 0 10px;
}

.review-form-row textarea {
  min-height: 64px;
  padding: 8px 10px;
  resize: vertical;
  line-height: 1.6;
}

.review-form-row input:focus,
.review-form-row textarea:focus {
  border-color: rgba(67, 107, 93, 0.36);
  box-shadow: 0 0 0 3px rgba(67, 107, 93, 0.06);
}

.review-decision-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  margin-top: 9px;
}

.review-status-button {
  min-height: 33px;
  padding: 0 11px;
  border: 0;
  border-radius: 9px;
  color: #fff;
  font-size: 8px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 160ms ease, filter 160ms ease;
}

.review-status-button:hover {
  transform: translateY(-1px);
  filter: brightness(1.04);
}

.review-status-button.approve {
  background: #5f8a6d;
}

.review-status-button.revise {
  background: #b88a3d;
}

.review-status-button.reject {
  margin-right: auto;
  background: var(--cinnabar);
}

.competition-backdrop {
  position: fixed;
  inset: 0;
  z-index: 76;
  display: grid;
  place-items: center;
  padding: 22px;
  background: rgba(18, 29, 23, 0.5);
  backdrop-filter: blur(7px);
}

.competition-dialog {
  width: min(1080px, 96vw);
  max-height: calc(100vh - 44px);
  padding: 26px;
  overflow-y: auto;
  border: 1px solid rgba(45, 62, 53, 0.14);
  border-radius: 26px;
  background:
    radial-gradient(circle at 90% 0%, rgba(210, 224, 205, 0.42), transparent 30%),
    var(--paper-light);
  box-shadow: 0 32px 100px rgba(21, 32, 26, 0.3);
}

.competition-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.competition-head h2 {
  margin: 0;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 34px;
  font-weight: 500;
}

.competition-head p:last-child {
  margin: 6px 0 0;
  color: var(--ink-soft);
  font-size: 10px;
}

.competition-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 19px 0;
}

.competition-metrics div {
  padding: 13px 14px;
  display: flex;
  align-items: baseline;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.46);
}

.competition-metrics strong {
  color: var(--cinnabar);
  font-family: Georgia, serif;
  font-size: 23px;
  font-weight: 500;
}

.competition-metrics span {
  color: var(--ink-faint);
  font-size: 8px;
}

.competition-prompts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.competition-prompts article {
  min-height: 190px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.48);
}

.competition-prompts article > span {
  color: var(--cinnabar);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.07em;
}

.competition-prompts p {
  flex: 1;
  margin: 12px 0;
  color: var(--ink);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 16px;
  line-height: 1.65;
}

.competition-prompts button {
  min-height: 33px;
  border: 0;
  border-radius: 9px;
  color: #fffaf2;
  background: var(--jade);
  font-size: 8px;
  font-weight: 700;
  cursor: pointer;
}

.competition-evidence {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 7px;
  margin-top: 12px;
}

.competition-evidence div {
  padding: 10px 12px;
  display: grid;
  grid-template-columns: 82px 1fr;
  gap: 8px;
  border-radius: 10px;
  background: rgba(226, 235, 224, 0.48);
}

.competition-evidence b {
  color: var(--jade);
  font-size: 9px;
}

.competition-evidence span {
  color: var(--ink-soft);
  font-size: 8px;
}

.competition-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 15px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.competition-footer p {
  margin: 0;
  color: var(--ink-faint);
  font-size: 8px;
  line-height: 1.6;
}

.cloud-backdrop {
  position: fixed;
  inset: 0;
  z-index: 77;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(19, 30, 24, 0.45);
  backdrop-filter: blur(6px);
}

.cloud-dialog {
  width: min(440px, 94vw);
  padding: 24px;
  border: 1px solid rgba(46, 62, 53, 0.13);
  border-radius: 22px;
  background: var(--paper-light);
  box-shadow: 0 25px 80px rgba(20, 31, 25, 0.24);
}

.cloud-dialog-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.cloud-dialog-head h2 {
  margin: 0;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 27px;
  font-weight: 500;
}

.cloud-intro {
  margin: 13px 0 16px;
  color: var(--ink-soft);
  font-size: 9px;
  line-height: 1.75;
}

.cloud-field {
  display: grid;
  gap: 5px;
  margin-bottom: 10px;
  color: var(--ink-faint);
  font-size: 8px;
}

.cloud-field input {
  height: 37px;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  outline: 0;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.62);
  font-size: 10px;
}

.cloud-field input:focus {
  border-color: rgba(67, 107, 93, 0.38);
  box-shadow: 0 0 0 3px rgba(67, 107, 93, 0.06);
}

.cloud-message {
  min-height: 17px;
  margin: 3px 0 8px;
  color: var(--cinnabar);
  font-size: 8px;
}

.cloud-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 80;
  max-width: calc(100% - 30px);
  padding: 10px 16px;
  border-radius: 999px;
  color: #fffaf0;
  background: rgba(33, 48, 40, 0.92);
  box-shadow: 0 10px 30px rgba(22, 32, 27, 0.22);
  font-size: 10px;
  transform: translate(-50%, 16px);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.toast.show {
  transform: translate(-50%, 0);
  opacity: 1;
}

@media (max-width: 1180px) {
  .topbar-note {
    display: none;
  }

  .app-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 20px;
  }

  .library {
    padding-inline: 16px;
  }

  .library h1 {
    font-size: 27px;
  }

  .workspace-grid,
  .learning-grid {
    grid-template-columns: minmax(280px, 0.92fr) minmax(350px, 1.08fr);
  }

  .poem-card {
    padding-inline: 24px;
  }

  .poem-line {
    font-size: clamp(21px, 2vw, 27px);
  }
}

@media (max-width: 930px) {
  .topbar-note {
    display: none;
  }

  .app-layout {
    display: block;
  }

  .library {
    position: relative;
    top: 0;
    height: auto;
    min-height: 0;
    margin-bottom: 18px;
  }

  .library-head {
    align-items: center;
  }

  .library h1 br {
    display: none;
  }

  .poem-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px;
    max-height: 224px;
  }

  .poem-item {
    margin-bottom: 0;
  }

  .library-foot {
    display: none;
  }

  .workspace-grid,
  .learning-grid {
    grid-template-columns: 1fr;
  }

  .poem-card {
    min-height: 530px;
  }

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

@media (max-width: 650px) {
  .topbar,
  .app-layout {
    width: calc(100% - 24px);
  }

  .topbar {
    height: 72px;
    gap: 12px;
  }

  .brand-copy span {
    display: none;
  }

  .brand-seal {
    width: 38px;
    height: 38px;
  }

  .brand-copy strong {
    font-size: 20px;
  }

  .quiet-button {
    display: none;
  }

  .primary-button {
    min-height: 37px;
    padding-inline: 12px;
    font-size: 10px;
  }

  .app-layout {
    margin-bottom: 14px;
  }

  .library {
    padding: 18px 15px 14px;
    border-radius: 22px;
  }

  .library h1 {
    font-size: 24px;
  }

  .poem-list {
    max-height: 205px;
  }

  .poem-header {
    min-height: 0;
    align-items: flex-start;
    padding: 20px 3px 18px;
  }

  .title-row h2 {
    font-size: 37px;
  }

  .reading-progress {
    width: 110px;
    margin-top: 9px;
  }

  .progress-copy span {
    display: none;
  }

  .poem-card {
    min-height: 510px;
    padding: 20px 19px 17px;
    border-radius: 22px;
  }

  .poem-text {
    margin-block: 24px;
  }

  .poem-line {
    font-size: clamp(21px, 6vw, 27px);
    letter-spacing: 0.07em;
  }

  .poem-card-footer {
    align-items: flex-end;
  }

  .legend {
    gap: 7px;
  }

  .visual-head {
    padding-inline: 17px;
  }

  .canvas-shell {
    margin-inline: 8px;
    border-radius: 14px;
  }

  .visual-toolbar {
    padding-inline: 15px;
  }

  .style-select span {
    display: none;
  }

  .tool-button {
    font-size: 0;
  }

  .tool-button svg {
    width: 18px;
    height: 18px;
  }

  .evidence-card,
  .notes-card,
  .coach-card {
    padding: 19px 18px;
    border-radius: 22px;
  }

  .coach-actions {
    justify-content: space-between;
  }

  .line-visual-card {
    padding: 19px 17px;
    border-radius: 22px;
  }

  .line-visual-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }

  .line-visual-head > p {
    text-align: left;
  }

  .line-visual-item {
    width: 182px;
    min-width: 182px;
  }

  .prompt-drawer,
  .teacher-drawer {
    padding: 24px 20px;
  }

  .teacher-actions,
  .video-actions {
    flex-wrap: wrap;
  }

  .video-dialog-backdrop {
    padding: 10px;
  }

  .video-dialog {
    padding: 18px 15px;
    border-radius: 18px;
  }

  .review-backdrop {
    padding: 7px;
  }

  .review-dialog {
    width: 100%;
    height: calc(100vh - 14px);
    padding: 14px 12px;
    border-radius: 18px;
  }

  .review-dialog-head {
    grid-template-columns: 1fr 34px;
    gap: 10px;
  }

  .review-summary {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: flex-start;
  }

  .review-layout {
    height: calc(100% - 112px);
    grid-template-columns: 1fr;
    grid-template-rows: 142px minmax(0, 1fr);
  }

  .review-line-list {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(145px, 1fr);
    overflow-x: auto;
    overflow-y: hidden;
  }

  .review-line-item {
    margin: 0 4px 0 0;
    align-self: start;
  }

  .review-main {
    grid-template-rows: minmax(180px, 0.9fr) auto auto;
  }

  .review-detail-grid,
  .review-form-row {
    grid-template-columns: 1fr;
  }

  .review-decision-actions {
    justify-content: stretch;
  }

  .review-status-button,
  .review-decision-actions .quiet-button {
    flex: 1 1 calc(50% - 7px);
    justify-content: center;
  }

  .review-status-button.reject {
    margin-right: 0;
  }

  .competition-backdrop {
    padding: 7px;
  }

  .competition-dialog {
    padding: 19px 15px;
    border-radius: 18px;
  }

  .competition-metrics,
  .competition-prompts,
  .competition-evidence {
    grid-template-columns: 1fr;
  }

  .competition-metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .competition-prompts article {
    min-height: 160px;
  }

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

  .video-info {
    gap: 5px;
  }

  .video-info > div {
    padding: 8px;
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  body {
    background: #fff;
  }

  body * {
    visibility: hidden;
  }

  .teacher-drawer,
  .teacher-drawer * {
    visibility: visible;
  }

  .teacher-drawer {
    position: absolute;
    inset: 0;
    width: 100%;
    padding: 0;
    overflow: visible;
    border: 0;
    background: #fff;
    box-shadow: none;
    transform: none;
  }

  .teacher-drawer .icon-button,
  .teacher-actions {
    display: none;
  }

  .teacher-section {
    break-inside: avoid;
    background: #fff;
  }
}