[v-cloak] {
  display: none;
}

:root {
  --bg: #f3eee3;
  --paper: rgba(255, 251, 245, 0.92);
  --paper-strong: #fffdf7;
  --ink: #1d1a17;
  --muted: #675e55;
  --line: rgba(38, 31, 23, 0.12);
  --accent: #9d2f2f;
  --accent-soft: rgba(157, 47, 47, 0.1);
  --gold: #b58a42;
  --shadow: 0 24px 60px rgba(44, 29, 18, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(181, 138, 66, 0.16), transparent 24%),
    radial-gradient(circle at top right, rgba(157, 47, 47, 0.14), transparent 22%),
    linear-gradient(180deg, #efe7da 0%, #f8f4ed 48%, #efe8dc 100%);
  font-family: "IBM Plex Sans", sans-serif;
}

button,
input {
  font: inherit;
}

.page-shell {
  width: min(1440px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.hero {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 20px;
  align-items: stretch;
  margin-bottom: 20px;
}

.hero-copy,
.hero-card,
.library-panel,
.reader-panel,
.insight-panel {
  border: 1px solid var(--line);
  background: var(--paper);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 30px;
  border-radius: 30px;
  position: relative;
  overflow: hidden;
}

.hero-copy::after {
  content: "";
  position: absolute;
  inset: auto -60px -110px auto;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(157, 47, 47, 0.18), transparent 68%);
}

.eyebrow,
.section-label {
  margin: 0 0 10px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.74rem;
  font-weight: 600;
}

.hero h1 {
  margin: 0;
  max-width: 13ch;
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(3rem, 5vw, 5rem);
  line-height: 0.92;
  font-weight: 700;
}

.hero-text {
  max-width: 64ch;
  margin: 16px 0 0;
  line-height: 1.7;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.primary-button,
.ghost-button,
.mini-button,
.chip,
.sound-button {
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
  cursor: pointer;
}

.primary-button,
.ghost-button,
.mini-button {
  padding: 12px 18px;
}

.primary-button {
  background: var(--accent);
  color: #fff7ef;
  border-color: transparent;
}

.ghost-button,
.mini-button,
.chip,
.sound-button {
  background: var(--paper-strong);
  color: var(--ink);
}

.primary-button:hover,
.ghost-button:hover,
.mini-button:hover,
.chip:hover,
.sound-button:hover {
  transform: translateY(-2px);
}

.hero-card {
  border-radius: 30px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

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

.stat-grid article {
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 253, 247, 0.95), rgba(250, 244, 235, 0.88));
  border: 1px solid rgba(181, 138, 66, 0.2);
  padding: 18px;
}

.stat-value {
  display: block;
  font-family: "Cormorant Garamond", serif;
  font-size: 2.2rem;
  font-weight: 700;
}

.stat-label,
.hero-note,
.panel-head p,
.reader-intro p,
.word-explanation,
.sentence-card p,
.tips-card li,
.explanation-strip p,
.empty-state p {
  color: var(--muted);
  line-height: 1.6;
}

.hero-note {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.workspace {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr) 340px;
  gap: 20px;
}

.library-panel,
.reader-panel,
.insight-panel {
  border-radius: 28px;
  padding: 22px;
}

.panel-head h2,
.reader-toolbar h2,
.explanation-strip h3 {
  margin: 0;
  font-family: "Cormorant Garamond", serif;
  font-size: 2rem;
}

.search-field {
  display: grid;
  gap: 8px;
  margin-top: 18px;
}

.search-field input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--paper-strong);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 18px;
}

.chip {
  padding: 10px 14px;
}

.chip.active {
  background: var(--accent-soft);
  border-color: rgba(157, 47, 47, 0.32);
  color: var(--accent);
}

.text-list {
  display: grid;
  gap: 10px;
}

.library-panel,
.reader-panel,
.insight-panel {
  min-width: 0;
}

.text-item {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  border-radius: 20px;
  padding: 16px;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
  text-align: left;
}

.text-item:hover,
.text-item.active {
  transform: translateY(-2px);
  border-color: rgba(157, 47, 47, 0.34);
  box-shadow: 0 16px 34px rgba(79, 46, 22, 0.08);
}

.text-item h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.text-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.item-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(181, 138, 66, 0.12);
  color: #6f4e1f;
  font-size: 0.82rem;
}

.reader-toolbar,
.meta-row,
.word-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.reader-controls,
.meta-row {
  flex-wrap: wrap;
}

.reader-intro {
  margin: 18px 0 20px;
  padding: 16px 18px;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(181, 138, 66, 0.12), rgba(157, 47, 47, 0.08));
  border: 1px solid rgba(181, 138, 66, 0.16);
}

.text-stage {
  display: grid;
  gap: 18px;
}

.hanzi-block,
.translation-block,
.explanation-strip,
.word-card,
.sentence-card,
.tips-card,
.mini-lesson {
  border-radius: 24px;
  background: rgba(255, 252, 247, 0.9);
  border: 1px solid var(--line);
}

.hanzi-block,
.translation-block {
  padding: 22px;
}

.hanzi-paragraph,
.translation-paragraph {
  margin: 0 0 18px;
}

.hanzi-paragraph:last-child,
.translation-paragraph:last-child {
  margin-bottom: 0;
}

.hanzi-paragraph {
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.18rem, 1.5vw, 1.4rem);
  line-height: 2.2;
}

.translation-paragraph {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--muted);
}

.word-token {
  position: relative;
  display: inline-flex;
  align-items: flex-end;
  min-height: 2.9em;
  padding: 0 2px;
  margin: 0 1px;
  border: none;
  border-radius: 10px;
  background: transparent;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}

.word-token:hover,
.word-token.active {
  background: rgba(157, 47, 47, 0.12);
  color: var(--accent);
  transform: translateY(-1px);
}

.word-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.1;
}

.word-ruby {
  min-height: 0.95em;
  margin-bottom: 0.28em;
  color: #8b6c3a;
  font-size: 0.62rem;
  letter-spacing: 0.02em;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 160ms ease, transform 160ms ease;
}

.show-pinyin .word-ruby {
  opacity: 1;
  transform: translateY(0);
}

.punctuation {
  color: var(--ink);
}

.translation-block.hidden {
  display: none;
}

.explanation-strip,
.word-card,
.sentence-card,
.tips-card,
.mini-lesson {
  padding: 18px 20px;
}

.word-hanzi {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-size: 2.2rem;
}

.word-pinyin,
.word-translation {
  margin: 0;
}

.word-pinyin {
  color: #8b6c3a;
}

.word-translation {
  margin-top: 10px;
  font-size: 1.08rem;
  font-weight: 600;
}

.sound-button {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 1.2rem;
}

.word-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.word-tag {
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(181, 138, 66, 0.12);
  color: #6f4e1f;
  font-size: 0.8rem;
}

.tips-card ul {
  margin: 10px 0 0;
  padding-left: 18px;
}

.mini-lesson h3 {
  margin: 6px 0 10px;
  font-size: 1.05rem;
}

.mini-lesson p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

@media (max-width: 1180px) {
  .workspace {
    grid-template-columns: 280px minmax(0, 1fr);
  }

  .insight-panel {
    grid-column: 1 / -1;
  }
}

@media (max-width: 920px) {
  .page-shell {
    width: min(100vw - 20px, 1440px);
    padding-top: 10px;
  }

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

  .hero h1 {
    max-width: none;
  }

  .hero-copy,
  .hero-card {
    padding: 22px;
  }

  .hero-actions {
    gap: 10px;
  }
}

@media (max-width: 640px) {
  body {
    background:
      radial-gradient(circle at top left, rgba(181, 138, 66, 0.12), transparent 26%),
      linear-gradient(180deg, #f4ede1 0%, #fbf8f2 100%);
  }

  .page-shell {
    width: calc(100vw - 12px);
    padding: 6px 0 20px;
  }

  .hero-copy,
  .hero-card,
  .library-panel,
  .reader-panel,
  .insight-panel {
    border-radius: 22px;
    padding: 16px;
    box-shadow: 0 18px 34px rgba(44, 29, 18, 0.09);
  }

  .reader-toolbar,
  .word-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .workspace {
    gap: 14px;
  }

  .library-panel {
    order: 3;
  }

  .reader-panel {
    order: 1;
  }

  .insight-panel {
    order: 2;
  }

  .hero {
    gap: 14px;
    margin-bottom: 14px;
  }

  .hero-copy {
    padding: 16px;
  }

  .hero-copy::after {
    width: 180px;
    height: 180px;
    inset: auto -40px -80px auto;
  }

  .hero h1 {
    font-size: clamp(2.1rem, 12vw, 3rem);
    line-height: 0.96;
  }

  .hero-text {
    margin-top: 12px;
    font-size: 0.95rem;
    line-height: 1.65;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    margin-top: 18px;
  }

  .primary-button,
  .ghost-button {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .hero-card {
    padding: 14px;
  }

  .stat-grid {
    gap: 10px;
  }

  .stat-grid article {
    padding: 14px;
    border-radius: 16px;
  }

  .stat-value {
    font-size: 1.9rem;
  }

  .hero-note {
    margin-top: 14px;
    padding-top: 14px;
    font-size: 0.88rem;
  }

  .panel-head h2,
  .reader-toolbar h2,
  .explanation-strip h3 {
    font-size: 1.65rem;
  }

  .panel-head p,
  .reader-intro p,
  .word-explanation,
  .sentence-card p,
  .tips-card li,
  .explanation-strip p {
    font-size: 0.92rem;
  }

  .search-field {
    margin-top: 14px;
  }

  .search-field input {
    min-height: 44px;
    padding: 11px 13px;
    border-radius: 14px;
  }

  .filter-row {
    flex-wrap: nowrap;
    overflow-x: auto;
    margin: 14px 0 16px;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  .filter-row::-webkit-scrollbar {
    display: none;
  }

  .chip {
    white-space: nowrap;
    flex: 0 0 auto;
    padding: 9px 13px;
  }

  .text-list {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 4px;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
  }

  .text-list::-webkit-scrollbar {
    display: none;
  }

  .text-item,
  .empty-state {
    flex: 0 0 84%;
    min-height: 100%;
    scroll-snap-align: start;
    border-radius: 18px;
    padding: 14px;
  }

  .text-item h3 {
    font-size: 0.96rem;
  }

  .text-item p {
    font-size: 0.88rem;
  }

  .reader-panel {
    padding: 16px;
  }

  .reader-toolbar {
    gap: 10px;
  }

  .reader-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    gap: 8px;
  }

  .mini-button {
    width: 100%;
    padding: 11px 12px;
    text-align: center;
  }

  .meta-row {
    gap: 6px;
  }

  .meta-pill {
    padding: 7px 10px;
    font-size: 0.74rem;
  }

  .reader-intro {
    margin: 14px 0 16px;
    padding: 14px;
    border-radius: 18px;
  }

  .hanzi-paragraph {
    font-size: 1.08rem;
    line-height: 2.05;
  }

  .hanzi-block,
  .translation-block,
  .explanation-strip,
  .word-card,
  .sentence-card,
  .tips-card,
  .mini-lesson {
    border-radius: 18px;
  }

  .hanzi-block,
  .translation-block {
    padding: 16px;
  }

  .translation-paragraph {
    font-size: 0.94rem;
    line-height: 1.7;
  }

  .word-token {
    min-height: 3.1em;
    margin: 0;
    padding: 0 1px;
  }

  .word-ruby {
    font-size: 0.56rem;
  }

  .word-card,
  .sentence-card,
  .tips-card,
  .mini-lesson,
  .explanation-strip {
    padding: 15px 16px;
  }

  .word-head {
    flex-direction: row;
    align-items: center;
  }

  .word-hanzi {
    font-size: 1.9rem;
  }

  .word-translation {
    font-size: 1rem;
  }

  .sound-button {
    width: 42px;
    height: 42px;
    flex: 0 0 auto;
  }

  .word-tags {
    gap: 6px;
    margin-top: 12px;
  }

  .word-tag {
    padding: 6px 9px;
    font-size: 0.74rem;
  }

  .tips-card ul {
    margin-top: 8px;
    padding-left: 16px;
  }

  .mini-lesson h3 {
    font-size: 1rem;
  }
}

@media (max-width: 420px) {
  .reader-controls {
    grid-template-columns: 1fr;
  }

  .text-item,
  .empty-state {
    flex-basis: 88%;
  }

  .hanzi-paragraph {
    font-size: 1rem;
    line-height: 1.95;
  }

  .word-hanzi {
    font-size: 1.75rem;
  }
}