:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-soft: #f1f5f9;
  --text: #172033;
  --muted: #5f6b7a;
  --line: #dbe2ea;
  --accent: #1667c5;
  --accent-dark: #0e4f99;
  --shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(219, 226, 234, 0.9);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 32px));
  min-height: 64px;
  margin: 0 auto;
  gap: 24px;
}

.brand {
  text-decoration: none;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
}

.nav-links a {
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--accent);
}

.section {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 80px 0;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.narrow {
  width: min(920px, calc(100% - 32px));
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.75fr);
  align-items: center;
  gap: 48px;
  min-height: calc(100vh - 64px);
  padding-top: 70px;
  padding-bottom: 70px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(46px, 7vw, 86px);
}

h2 {
  font-size: clamp(30px, 4vw, 48px);
}

.hero-subtitle {
  max-width: 760px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 22px;
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 700;
}

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

.button.primary:hover {
  background: var(--accent-dark);
}

.button.secondary {
  background: var(--surface);
}

.button.secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 26px;
}

.metric {
  display: flex;
  align-items: end;
  gap: 12px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.metric-value {
  color: var(--accent);
  font-size: 56px;
  font-weight: 850;
  line-height: 0.95;
}

.metric-label {
  color: var(--muted);
  font-weight: 700;
  line-height: 1.25;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.capability-grid span {
  min-height: 38px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-soft);
  color: #344054;
  font-size: 13px;
  font-weight: 680;
}

.section-heading {
  margin-bottom: 28px;
}

.section-heading p:not(.eyebrow) {
  max-width: 780px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.task-heading {
  text-align: center;
}

.task-heading h2 {
  margin-bottom: 10px;
}

.task-heading p:not(.eyebrow) {
  max-width: 860px;
  margin: 0 auto;
  line-height: 1.6;
}

.task-heading .task-note {
  margin-top: 7px;
  color: #8a94a3;
  font-size: 12px;
}

.prose {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.prose p {
  margin: 0;
  color: #334155;
  font-size: 16px;
}

.prose p + p {
  margin-top: 16px;
}

.figure-card {
  margin: 0 0 22px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.figure-card.compact {
  box-shadow: none;
}

.figure-card img {
  display: block;
  width: 100%;
  height: auto;
}

.figure-card figcaption {
  margin-top: 14px;
  color: var(--muted);
  font-size: 14px;
}

.scene-section {
  scroll-margin-top: 64px;
}

.scene-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.scene-placeholder {
  display: grid;
  min-height: 180px;
  place-items: center;
  background: linear-gradient(135deg, var(--surface), var(--surface-soft));
}

.scene-placeholder p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  font-weight: 700;
}

.demo-table {
  overflow-x: auto;
}

.codec-demo-table table {
  table-layout: fixed;
}

.codec-two-column table {
  min-width: 620px;
}

.codec-three-column table {
  min-width: 900px;
}

.codec-demo-table th,
.codec-demo-table td {
  text-align: center;
}

.codec-demo-table th:first-child,
.codec-demo-table .sample-id {
  width: 64px;
}

.codec-demo-table .audio-cell {
  min-width: 0;
}

.codec-demo-table audio {
  max-width: none;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 1220px;
}

th,
td {
  padding: 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  text-align: left;
}

th {
  color: #334155;
  background: #fbfcfe;
  font-size: 13px;
  font-weight: 780;
}

td {
  color: #2f3a4a;
  font-size: 14px;
}

tbody tr:hover {
  background: #fbfdff;
}

.sample-id {
  width: 88px;
  color: var(--accent-dark);
  font-weight: 800;
  white-space: nowrap;
}

.audio-cell {
  min-width: 210px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

audio {
  width: 100%;
  max-width: 260px;
  height: 36px;
}

.text-cell {
  min-width: 230px;
  max-width: 360px;
}

.instruction-cell {
  min-width: 250px;
}

.synthesis-text-cell {
  min-width: 300px;
  max-width: 440px;
}

.cloning-text-cell {
  min-width: 280px;
  max-width: 420px;
}

.cloning-demo-table table,
.instruction-demo-table table {
  min-width: 0;
  table-layout: fixed;
}

.cloning-demo-table th,
.cloning-demo-table td,
.instruction-demo-table th,
.instruction-demo-table td {
  padding: 10px 8px;
}

.cloning-demo-table th:first-child,
.cloning-demo-table .sample-id,
.instruction-demo-table th:first-child,
.instruction-demo-table .sample-id {
  width: 5%;
}

.cloning-demo-table th:nth-child(2),
.cloning-demo-table th:nth-child(4) {
  width: 17%;
}

.cloning-demo-table th:nth-child(3) {
  width: 23%;
}

.cloning-demo-table th:nth-child(5),
.cloning-demo-table th:nth-child(6) {
  width: 19%;
}

.instruction-demo-table th:nth-child(2) {
  width: 26%;
}

.instruction-demo-table th:nth-child(3) {
  width: 31%;
}

.instruction-demo-table th:nth-child(4),
.instruction-demo-table th:nth-child(5) {
  width: 19%;
}

.cloning-demo-table .audio-cell,
.instruction-demo-table .audio-cell,
.cloning-demo-table .text-cell,
.instruction-demo-table .text-cell {
  min-width: 0;
  max-width: none;
}

.cloning-demo-table audio,
.instruction-demo-table audio {
  display: block;
  width: 100%;
  min-width: 0;
  max-width: 190px;
  margin: 0 auto;
}

.text-preview {
  display: block;
  color: var(--muted);
}

.audiobook-demo {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.audiobook-chapter-tabs {
  display: flex;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-soft);
  overflow-x: auto;
}

.audiobook-chapter-tab {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-weight: 760;
}

.audiobook-chapter-tab:hover {
  color: var(--accent);
}

.audiobook-chapter-tab.active {
  border-color: #b8cfe8;
  background: var(--surface);
  color: var(--accent-dark);
}

.audiobook-chapter-panel[hidden] {
  display: none;
}

.audiobook-scene-content {
  padding: 28px;
}

.audiobook-scene-content h3 {
  margin: 0 0 18px;
  color: #243143;
  font-size: 21px;
}

.audiobook-voice-descriptions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.audiobook-voice-description {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  background: var(--surface-soft);
}

.audiobook-voice-description strong {
  color: #344054;
  font-size: 14px;
}

.audiobook-voice-description-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.audiobook-voice-description-heading span {
  flex: 0 0 auto;
  padding: 3px 7px;
  border-radius: 999px;
  background: #e7f3f5;
  color: var(--accent);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.audiobook-voice-description p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.audiobook-featured-audios {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}

.audiobook-featured-audio > span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 760;
}

.audiobook-featured-audio .audio-cell,
.audiobook-featured-audio audio {
  width: 100%;
  max-width: none;
}

.audiobook-reference-audio {
  width: min(380px, 100%);
  margin-top: 18px;
}

.audiobook-reference-audio > span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 760;
}

.audiobook-reference-audio .audio-cell,
.audiobook-reference-audio audio {
  width: 100%;
  max-width: 380px;
}

.audiobook-full-text {
  margin: 22px 0 0;
  color: #435065;
  font-size: 15px;
  line-height: 1.8;
}

.audiobook-divider {
  height: 4px;
  margin: 24px 0 0;
  background: #187986;
}

.audiobook-segments {
  border-top: 1px solid var(--line);
}

.audiobook-segment {
  display: grid;
  grid-template-columns: minmax(190px, 0.8fr) minmax(360px, 2.2fr) minmax(220px, 0.9fr);
  align-items: center;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.audiobook-segment-role strong,
.audiobook-segment-role span {
  display: block;
}

.audiobook-segment-role strong {
  margin-bottom: 4px;
  color: #344054;
  font-size: 14px;
}

.audiobook-segment-role span {
  color: #9a6816;
  font-size: 13px;
  line-height: 1.45;
}

.audiobook-segment-text {
  margin: 0;
  color: #293345;
  font-size: 15px;
  line-height: 1.7;
}

.audiobook-segment .audio-cell,
.audiobook-segment audio {
  width: 100%;
  min-width: 0;
  max-width: none;
}

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 30px 0 50px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.disclaimer-section {
  padding-top: 36px;
  padding-bottom: 48px;
}

.disclaimer-card {
  padding: 34px 40px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 18px 48px rgba(30, 41, 59, 0.08);
}

.disclaimer-card h2 {
  margin: 0 0 18px;
  text-align: center;
}

.disclaimer-card p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.footer p {
  margin: 0;
}

.footer a {
  color: var(--accent-dark);
  font-weight: 760;
  text-decoration: none;
}

@media (max-width: 860px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    min-height: auto;
    padding: 14px 0;
    gap: 10px;
  }

  .nav-links {
    width: 100%;
    gap: 14px;
    overflow-x: auto;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 48px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .section {
    padding: 54px 0;
  }

  .capability-grid {
    grid-template-columns: 1fr;
  }

  .prose,
  .figure-card {
    padding: 16px;
  }

  table {
    min-width: 1120px;
  }

  .cloning-demo-table table {
    min-width: 920px;
  }

  .instruction-demo-table table {
    min-width: 820px;
  }

  .audiobook-scene-content {
    padding: 20px;
  }

  .audiobook-voice-descriptions {
    grid-template-columns: 1fr;
  }

  .audiobook-segment {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

@media (max-width: 560px) {
  .section,
  .narrow,
  .nav,
  .footer {
    width: min(100% - 22px, 1180px);
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .audiobook-chapter-tabs {
    padding: 10px;
  }

  .audiobook-chapter-tab {
    padding: 0 10px;
  }

  .audiobook-scene-content {
    padding: 16px;
  }

  .disclaimer-card {
    padding: 24px 20px;
  }

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

/* V911 showcase card layouts */
.audio-comparison-grid,
.voice-conversion-grid,
.clone-card-grid,
.instruction-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 16px;
}

.audio-comparison-card,
.voice-conversion-card,
.clone-card,
.instruction-card {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 4px 12px rgba(23, 50, 66, 0.035);
  overflow: hidden;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.clone-card,
.instruction-card {
  display: flex;
  flex-direction: column;
}

.audio-comparison-card:hover,
.voice-conversion-card:hover,
.clone-card:hover,
.instruction-card:hover {
  border-color: #9bc8c5;
  box-shadow: 0 10px 24px rgba(20, 80, 82, 0.08);
  transform: translateY(-2px);
}

.comparison-card-header,
.conversion-card-header,
.clone-card-header,
.instruction-card-header {
  display: flex;
  align-items: center;
  min-height: 50px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  background: #f5f9f9;
}

.sample-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 24px;
  padding: 0 9px;
  border-radius: 999px;
  background: #e3f1ef;
  color: var(--accent-dark);
  font-size: 11px;
  font-weight: 800;
}

.comparison-audio-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 14px;
}

.comparison-audio-item,
.conversion-stage,
.clone-audio-item,
.instruction-voice-item {
  min-width: 0;
  padding: 10px;
  border: 1px solid #e2e9eb;
  border-radius: 6px;
  background: #fbfcfc;
}

.comparison-audio-item.output,
.conversion-stage.output,
.clone-audio-item.output,
.instruction-voice-item.output {
  border-color: #b6d9d5;
  background: #f1f9f7;
}

.comparison-audio-item > span,
.conversion-stage > span,
.clone-audio-item > span,
.instruction-voice-item > span {
  display: block;
  min-height: 23px;
  margin-bottom: 6px;
  color: #526575;
  font-size: 11px;
  font-weight: 800;
}

.comparison-audio-item.output > span,
.conversion-stage.output > span,
.clone-audio-item.output > span,
.instruction-voice-item.output > span {
  color: var(--accent-dark);
}

.comparison-audio-item audio,
.conversion-stage audio,
.clone-audio-item audio,
.instruction-voice-item audio {
  width: 100%;
  min-width: 0;
  max-width: none;
}

.conversion-card {
  padding-bottom: 15px;
}

.conversion-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 26px minmax(0, 1fr) 26px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  padding: 14px;
}

.conversion-arrow,
.clone-flow-symbol {
  color: #94a6ad;
  font-size: 20px;
  font-weight: 700;
  text-align: center;
}

.clone-card-text {
  min-height: 82px;
  margin: 0;
  padding: 14px;
  color: #334b5a;
  font-size: 14px;
  line-height: 1.75;
}

.clone-card-audios,
.instruction-card-voices {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  align-items: stretch;
  margin-top: auto;
  padding: 0 14px 14px;
}

.prosody-flow {
  grid-template-columns: minmax(0, 1fr) 18px minmax(0, 1fr) 18px minmax(0, 1fr);
  gap: 5px;
  align-items: center;
}

#prosody-cloning-table .clone-audio-item {
  padding: 7px;
}

#prosody-cloning-table .clone-audio-item audio {
  height: 32px;
}

.instruction-card-instruction {
  margin: 0;
  padding: 15px 15px 8px;
  color: #526575;
  font-size: 13px;
  line-height: 1.7;
  white-space: pre-line;
}

.instruction-card-instruction::before {
  margin-right: 5px;
  color: #d29b3e;
  content: "Instruction";
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.instruction-card-text {
  margin: 0;
  padding: 0 15px 14px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.7;
}

.audiobook-voice-descriptions-label {
  grid-column: 1 / -1;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.longform-overview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.longform-overview span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid #c9dedd;
  border-radius: 999px;
  background: #eef7f6;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 760;
}

/* V911 showcase theme */
:root {
  --bg: #f5f8f8;
  --surface-soft: #edf5f4;
  --text: #12202e;
  --muted: #627180;
  --line: #d5e2e2;
  --accent: #0f827d;
  --accent-dark: #075e5c;
  --ink: #173242;
  --shadow: 0 14px 34px rgba(23, 50, 66, 0.07);
}

body { background: var(--bg); }

.site-header {
  border-bottom-color: #203746;
  background: rgba(18, 39, 52, 0.97);
  box-shadow: 0 3px 18px rgba(18, 39, 52, 0.12);
}

.nav {
  width: min(1280px, calc(100% - 40px));
  min-height: 70px;
}

.brand { color: #f8fbfc; }
.brand::before {
  display: inline-block;
  width: 9px;
  height: 9px;
  margin-right: 9px;
  border-radius: 50%;
  background: #55c7bd;
  content: "";
  vertical-align: 2px;
}

.nav-links {
  flex: 1 1 auto;
  min-width: 0;
  gap: 16px;
  color: #b5c6cf;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a { flex: 0 0 auto; padding: 7px 0; }
.nav-links a:hover { color: #75ddd3; }

.hero {
  width: min(1280px, calc(100% - 40px));
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  gap: 64px;
  min-height: min(760px, calc(100vh - 70px));
  padding-top: 92px;
  padding-bottom: 92px;
}

.hero h1 {
  max-width: 720px;
  color: var(--ink);
  font-size: clamp(54px, 7vw, 88px);
}
.hero h1::after {
  display: block;
  width: 68px;
  height: 5px;
  margin-top: 18px;
  border-radius: 999px;
  background: #e2a84d;
  content: "";
}
.hero-subtitle { max-width: 640px; margin-top: 24px; font-size: 20px; line-height: 1.55; }
.hero-actions { margin-top: 28px; }
.button { min-height: 46px; padding: 0 20px; }

.hero-panel {
  position: relative;
  padding: 30px;
  border-color: #c8d9dc;
  border-radius: 14px;
  background: #102b3b;
  color: #fff;
  box-shadow: 0 24px 60px rgba(13, 42, 57, 0.22);
}
.metric { border-bottom-color: rgba(214, 237, 239, 0.22); }
.metric-value { color: #70d8ca; font-size: 60px; }
.metric-label { color: #c8d7de; }
.capability-grid { grid-template-columns: 1fr; counter-reset: capability; }
.capability-grid a {
  display: flex;
  align-items: center;
  min-height: 46px;
  padding: 9px 12px;
  border: 1px solid rgba(214, 237, 239, 0.18);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.07);
  color: #eef8f7;
  text-decoration: none;
}
.capability-grid a::before {
  display: inline-grid;
  width: 22px;
  height: 22px;
  margin-right: 9px;
  place-items: center;
  border-radius: 50%;
  background: #e2a84d;
  color: #173142;
  content: counter(capability);
  counter-increment: capability;
  font-size: 11px;
  font-weight: 850;
}

.section { width: min(1280px, calc(100% - 40px)); padding-top: 76px; padding-bottom: 76px; }
.section-heading { margin-bottom: 24px; }
.section-heading h2 { color: var(--ink); font-size: clamp(28px, 3.5vw, 42px); }
.task-heading { position: relative; padding-left: 20px; text-align: left; }
.task-heading::before {
  position: absolute; top: 5px; bottom: 5px; left: 0; width: 4px;
  border-radius: 4px; background: #e2a84d; content: "";
}
.task-heading p:not(.eyebrow) { margin: 0; }
.task-heading .task-note { margin-top: 7px; }
.scene-section { scroll-margin-top: 82px; }
.scene-card, .audiobook-demo { border-radius: 12px; }
.audiobook-chapter-tabs { background: #e8f1f1; }
.audiobook-chapter-tab.active { border-color: #9ccbc8; }
.audiobook-divider { background: #e2a84d; }
.audiobook-featured-audios { grid-template-columns: minmax(280px, 430px); }
.audiobook-scene-content { padding: 26px; }
.audiobook-segment { grid-template-columns: minmax(170px, .7fr) minmax(360px, 2.3fr) minmax(240px, .9fr); gap: 28px; padding: 22px 0; }
.disclaimer-card { border-radius: 10px; background: #102b3b; color: #fff; }
.disclaimer-card h2 { color: #fff; }
.disclaimer-card p { color: #c7d5dc; }

@media (max-width: 860px) {
  .nav, .hero, .section, .footer { width: min(100% - 28px, 1280px); }
  .hero { grid-template-columns: 1fr; gap: 40px; min-height: auto; padding-top: 64px; padding-bottom: 64px; }
  .audio-comparison-grid, .voice-conversion-grid, .clone-card-grid, .instruction-card-grid { grid-template-columns: 1fr; }
  .audiobook-segment { grid-template-columns: 1fr; gap: 12px; }
}

@media (max-width: 560px) {
  .nav, .hero, .section, .footer { width: calc(100% - 22px); }
  .hero h1 { font-size: 54px; }
  .hero-subtitle { font-size: 17px; }
  .hero-panel { padding: 22px; }
  .section { padding-top: 52px; padding-bottom: 52px; }
  .task-heading { padding-left: 15px; }
  .comparison-audio-row, .clone-card-audios, .prosody-flow, .conversion-flow { grid-template-columns: 1fr; }
  .prosody-flow .clone-flow-symbol, .conversion-arrow { transform: rotate(90deg); }
  .instruction-card-voices { grid-template-columns: 1fr; }
}