:root {
  --ink:#172b3a;
  --muted:#65717e;
  --teal:#0a8484;
  --mint:#d6f5e9;
  --paper:#f5f6f8;
  --line:#e3e8eb;
  --white:#fff;
  font-family:"Microsoft JhengHei","Noto Sans TC",system-ui,sans-serif;
  color:var(--ink);
  background:var(--white);
  font-synthesis:none
}

    * {
  box-sizing:border-box
}
html {
  scroll-behavior:smooth;
  scroll-padding-top:90px
}
body {
  margin:0;
  font-size:16px;
  line-height:1.75
}
button,select {
  font:inherit
}
a {
  color:inherit;
  text-underline-offset:5px
}
button,a,select {
  -webkit-tap-highlight-color:transparent
}
a:focus-visible,button:focus-visible,select:focus-visible {
  outline:3px solid var(--teal);
  outline-offset:5px
}
button {
  cursor:pointer
}
svg {
  width:24px;
  height:24px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.7;
  stroke-linecap:round;
  stroke-linejoin:round;
  flex-shrink:0
}
p,h1,h2,h3,figure {
  margin:0
}
p {
  color:var(--muted)
}
.wrap {
  width:min(1280px,calc(100% - 96px));
  margin-inline:auto
}
.site-header {
  border-bottom:1px solid #edf0f2;
  background:rgba(255,255,255,.96)
}
.nav {
  min-height:88px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px
}
.brand {
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  flex-shrink:0
}
.brand svg {
  color:var(--teal);
  width:44px;
  height:44px;
  stroke-width:3
}
.brand strong {
  display:block;
  font-size:26px;
  line-height:1.25;
  letter-spacing:.07em
}
.brand small {
  font:600 9px/1.7 "Bahnschrift",sans-serif;
  letter-spacing:.08em;
  display:block
}
.nav-links {
  display:flex;
  gap:32px;
  align-items:center
}
.nav-links a {
  font-size:14px;
  text-decoration:none;
  font-weight:700
}
.nav-links a:hover {
  color:var(--teal)
}
.nav-actions {
  display:flex;
  align-items:center;
  gap:18px
}
.language {
  border:0;
  background:transparent;
  color:var(--ink);
  font-size:13px;
  width:106px;
  padding:10px 0;
  cursor:pointer
}
.button {
  display:inline-flex;
  justify-content:center;
  align-items:center;
  gap:10px;
  padding:14px 22px;
  border-radius:10px;
  color:#fff;
  background:var(--ink);
  font-weight:700;
  text-decoration:none;
  line-height:1.5;
  border:1px solid transparent;
  transition:background .15s,transform .15s;
  white-space:nowrap
}
.button:hover {
  background:#244252;
  transform:translateY(-1px)
}
.button.small {
  font-size:13px;
  padding:10px 18px
}
.button svg {
  width:19px;
  height:19px
}
.hero {
  background:linear-gradient(180deg,#fff,#fafbfc)
}
.hero-inner {
  display:grid;
  grid-template-columns:.92fr 1.2fr;
  gap:48px;
  align-items:center;
  padding-block:70px 55px
}
.eyebrow {
  font-size:13px;
  color:var(--teal);
  font-weight:700;
  letter-spacing:.04em;
  margin-bottom:13px
}
.hero .eyebrow {
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:3px 10px;
  border-radius:20px;
  letter-spacing:0;
  background:#e9f8f4;
  font-size:11px
}
.dot {
  display:inline-block;
  width:6px;
  height:6px;
  border-radius:50%;
  background:#2ba89b
}
.hero h1 {
  font-size:clamp(38px,3.5vw,52px);
  font-weight:800;
  line-height:1.24;
  letter-spacing:-.045em;
  margin:5px 0 22px
}
.hero h1 span {
  display:block;
  white-space:nowrap
}
.accent {
  color:var(--teal)
}
.hero-lead {
  font-size:17px;
  line-height:1.9;
  max-width:490px
}
.hero-actions {
  display:flex;
  align-items:center;
  gap:24px;
  margin:25px 0 14px
}
.text-link {
  font-size:14px;
  font-weight:700;
  white-space:nowrap
}
.text-link:hover {
  color:var(--teal)
}
.fine {
  font-size:12px;
  color:var(--muted);
  letter-spacing:.02em
}
.hero-visual {
  min-width:0;
  padding-top:10px
}
.screenshot {
  display:block;
  border-radius:9px;
  overflow:hidden;
  border:1px solid #28343f;
  background:#11141a;
  text-decoration:none;
  transition:box-shadow .18s,transform .18s
}
.screenshot img {
  display:block;
  width:100%;
  height:auto
}
.screenshot:hover {
  box-shadow:0 13px 32px #172b3a18;
  transform:translateY(-2px)
}
.hero .screenshot {
  box-shadow:0 17px 42px #18314020,0 3px 9px #172b3a20
}
.hero-visual figcaption {
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  width:max-content;
  max-width:100%;
  background:var(--mint);
  color:#15535a;
  font-size:12px;
  font-weight:700;
  border-radius:22px;
  margin:20px auto 0;
  padding:7px 16px
}
.hero-visual figcaption svg {
  width:16px;
  height:16px
}
.capabilities {
  border-top:1px solid #edf0f2;
  border-bottom:1px solid #edf0f2;
  background:#fff
}
.capabilities .wrap {
  display:flex;
  justify-content:space-between;
  gap:18px;
  padding-block:22px
}
.capability {
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  font-weight:700
}
.capability svg {
  color:var(--teal);
  width:25px;
  height:25px
}
.origin {
  background:var(--paper);
  padding:58px 0
}
.origin .wrap {
  display:grid;
  grid-template-columns:1.1fr .9fr;
  align-items:center;
  gap:95px
}
.section-title {
  font-size:32px;
  letter-spacing:-.035em;
  line-height:1.4;
  font-weight:800
}
.origin .section-title {
  margin-bottom:18px
}
.origin p:not(.eyebrow) {
  font-size:14px;
  line-height:1.95;
  max-width:630px
}
.origin p+p {
  margin-top:10px
}
.reminders {
  display:grid;
  gap:12px
}
.reminder {
  display:flex;
  align-items:center;
  gap:17px;
  padding:16px 19px;
  background:#fff;
  border:1px solid #eef0f2;
  border-radius:11px;
  font-size:13px
}
.reminder>svg {
  width:25px;
  height:25px
}
.check {
  display:flex;
  align-items:center;
  justify-content:center;
  margin-left:auto;
  width:19px;
  height:19px;
  border-radius:50%;
  background:var(--teal);
  color:#fff;
  flex-shrink:0
}
.check svg {
  width:12px;
  height:12px;
  stroke-width:2.7
}
.section {
  padding-block:66px
}
.section-header {
  margin-bottom:27px
}
.section-header .eyebrow {
  margin-bottom:7px
}
.section-header p:not(.eyebrow) {
  font-size:14px;
  margin-top:10px
}
.prep-grid {
  display:grid;
  grid-template-columns:1.32fr 1fr;
  gap:20px
}
.card {
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden
}
.card-copy {
  padding:26px 28px 20px
}
.card h3 {
  font-size:20px;
  line-height:1.5;
  letter-spacing:-.025em
}
.card p {
  font-size:14px;
  line-height:1.85;
  margin-top:10px
}
.card-title {
  display:flex;
  align-items:center;
  gap:12px
}
.card-title>svg {
  color:var(--teal);
  width:25px;
  height:25px
}
.uvr .screenshot {
  margin:0 24px;
  border-radius:8px
}
.caption {
  font-size:12px!important;
  color:var(--muted);
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin:11px 24px 19px!important;
  gap:14px
}
.caption a {
  white-space:nowrap;
  color:var(--teal)
}
.prep-stack {
  display:grid;
  grid-template-rows:auto 1fr;
  gap:20px
}
.formats {
  background:#f6f7f9
}
.format-tags {
  display:flex;
  flex-wrap:wrap;
  gap:9px;
  margin-top:22px
}
.format-tags span {
  font:500 13px/1.4 "Bahnschrift",system-ui,sans-serif;
  background:#fff;
  border:1px solid #e4e9ec;
  border-radius:7px;
  padding:7px 14px;
  color:#526672
}
.youtube {
  background:#fafbfc
}
.youtube .card-title svg {
  fill:#ed242d;
  stroke:none
}
.youtube p {
  max-width:360px
}
.youtube-source {
  display:flex;
  align-items:center;
  gap:13px;
  background:#fff;
  border:1px solid #e0e5e9;
  border-radius:9px;
  padding:13px 15px;
  margin-top:24px
}
.youtube-source svg {
  color:#eb2735;
  fill:#eb2735;
  stroke:#eb2735;
  width:25px
}
.youtube-source span {
  font-size:14px;
  color:#7a8790
}
.youtube .text-link {
  display:inline-block;
  margin-top:22px;
  color:var(--teal)
}
.flow-section {
  padding:0 0 64px
}
.flow-header {
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:25px;
  margin-bottom:25px
}
.flow-header p {
  font-size:13px;
  margin-top:9px
}
.flow-header .section-title {
  font-size:28px
}
.mode-switch {
  background:#ecf0f2;
  border:1px solid #e7ecef;
  padding:4px;
  border-radius:30px;
  display:flex;
  flex-shrink:0
}
.mode-switch button {
  border:0;
  background:transparent;
  padding:9px 20px;
  color:var(--muted);
  font-size:13px;
  line-height:1.4;
  border-radius:25px;
  transition:background .2s
}
.mode-switch button[aria-pressed="true"] {
  background:var(--mint);
  color:#12565c;
  font-weight:700
}
.workflow {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:15px
}
.flow-card {
  border:1px solid var(--line);
  border-radius:13px;
  padding:22px 24px;
  background:#f8f9fa
}
.flow-card:last-child {
  background:#eff8f5
}
.flow-label {
  display:flex;
  align-items:center;
  gap:10px;
  color:#687a84;
  font-size:12px
}
.flow-label svg {
  width:18px;
  height:18px
}
.flow-value {
  font-size:18px;
  font-weight:700;
  line-height:1.5;
  margin:20px 0 8px
}
.flow-card p {
  font-size:12px
}
.meter {
  display:flex;
  align-items:center;
  gap:4px;
  height:33px;
  margin-top:14px
}
.meter i {
  width:5px;
  height:var(--h);
  border-radius:5px;
  background:var(--teal);
  opacity:.65
}
.meter.is-muted i {
  height:4px!important;
  background:#9eaab1;
  opacity:.6
}
.flow-footnote {
  font-size:12px;
  text-align:right;
  margin-top:12px;
  color:var(--muted)
}
.features {
  background:var(--paper);
  padding:62px 0
}
.feature-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  margin-top:27px
}
.feature-grid .card-copy {
  padding:25px 25px 19px
}
.feature-grid h3 {
  font-size:18px
}
.feature-grid p {
  font-size:13px;
  min-height:48px
}
.feature-grid .screenshot {
  margin:0 18px;
  border-radius:7px;
  aspect-ratio:1.606;
  background:#12171b;
  display:flex;
  align-items:center
}
.feature-grid .screenshot img {
  width:100%;
  height:100%;
  object-fit:contain
}
.feature-grid .caption {
  margin:12px 18px 18px!important
}
.obs-output {
  display:grid;
  grid-template-columns:.92fr 1.2fr;
  gap:72px;
  align-items:center;
  margin-top:42px;
  padding:34px 0 0;
  border-top:1px solid #dee5e9
}
.obs-output .section-title {
  font-size:25px;
  margin-bottom:13px
}
.obs-output p {
  font-size:14px;
  max-width:460px
}
.obs-output .text-link {
  display:inline-block;
  color:var(--teal);
  margin-top:16px
}
.obs-output .screenshot {
  max-width:460px;
  margin-left:auto;
  width:100%
}
.obs-output .screenshot img {
  aspect-ratio:977/749;
  object-fit:contain
}
.closing {
  padding:38px 0;
  background:var(--ink);
  color:white
}
.closing .wrap {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px
}
.closing h2 {
  font-size:26px;
  letter-spacing:-.025em
}
.closing p {
  color:#b7c8cf;
  font-size:13px;
  margin-top:5px
}
.closing .button {
  background:var(--mint);
  color:#163f45
}
.closing-actions {
  display:flex;
  gap:26px;
  align-items:center
}
.page-footer {
  padding:18px 0;
  background:#11232f;
  color:#a3b3bd;
  font-size:11px
}
.page-footer .wrap {
  display:flex;
  justify-content:space-between;
  gap:20px
}
.page-footer a {
  color:#c3d5dc
}
.lightbox {
  border:0;
  padding:20px;
  border-radius:12px;
  background:#101820;
  color:#fff;
  max-width:min(95vw,1800px);
  max-height:94vh;
  box-shadow:0 25px 80px #0006
}
.lightbox::backdrop {
  background:#09131dde;
  backdrop-filter:blur(8px)
}
.lightbox img {
  display:block;
  max-width:100%;
  max-height:80vh;
  object-fit:contain;
  margin:auto
}
.lightbox-bar {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:25px;
  margin-bottom:14px
}
.lightbox-bar p {
  color:#d9e2e7;
  font-size:13px
}
.lightbox button {
  background:#283640;
  color:white;
  border:1px solid #5d6d78;
  border-radius:6px;
  padding:6px 12px;
  font-size:13px
}
.skip-link {
  position:fixed;
  left:12px;
  top:12px;
  z-index:100;
  color:var(--ink);
  background:var(--white);
  border:1px solid var(--line-strong);
  border-radius:8px;
  padding:10px 14px;
  box-shadow:0 4px 18px #00142222;
  transform:translateY(-180%)
}
.skip-link:focus {
  color:var(--ink);
  transform:translateY(0)
}
.mobile-brand {
  display:none
}

    @media(min-width:1600px) {
  .hero h1 {
    font-size:54px
  }
  .hero-inner {
    padding-block:85px 70px
  }
  .hero-lead {
    font-size:18px
  }
}

    @media(max-width:1180px) {
  .wrap {
    width:calc(100% - 64px)
  }
  .nav-links {
    gap:18px
  }
  .nav-actions {
    gap:7px
  }
  .brand strong {
    font-size:22px
  }
  .nav {
    gap:18px
  }
  .nav .button.small {
    font-size:12px;
    padding:10px 13px
  }
  .hero-inner {
    gap:30px;
    grid-template-columns:.96fr 1fr
  }
  .hero h1 {
    font-size:38px
  }
  .hero-actions {
    gap:17px
  }
  .hero-actions .button {
    font-size:13px;
    padding:12px 16px
  }
  .hero .text-link {
    font-size:12px
  }
  .hero-lead {
    font-size:15px
  }
  .origin .wrap {
    gap:42px
  }
  .section-title {
    font-size:28px
  }
  .capability {
    font-size:12px;
    gap:8px
  }
  .capability svg {
    width:22px
  }
  .card-copy {
    padding:23px
  }
  .format-tags {
    gap:7px
  }
  .format-tags span {
    padding:6px 11px
  }
  .feature-grid .card-copy {
    padding:23px 20px 17px
  }
  .feature-grid h3 {
    font-size:16px
  }
}

    @media(max-width:880px) {
  .nav {
    min-height:75px
  }
  .nav-links {
    display:none
  }
  .hero-inner {
    grid-template-columns:1fr;
    padding-top:45px;
    gap:30px
  }
  .hero-copy {
    max-width:600px
  }
  .hero h1 {
    font-size:48px
  }
  .hero-lead {
    max-width:none
  }
  .hero-visual {
    max-width:760px;
    padding:0
  }
  .hero .screenshot {
    box-shadow:0 12px 25px #18314018
  }
  .capabilities .wrap {
    flex-wrap:wrap;
    justify-content:center;
    gap:20px 28px
  }
  .origin .wrap {
    grid-template-columns:1fr;
    gap:28px
  }
  .prep-grid {
    grid-template-columns:1fr
  }
  .prep-stack {
    grid-template-columns:1fr 1fr;
    grid-template-rows:1fr
  }
  .flow-header {
    align-items:flex-start;
    flex-direction:column
  }
  .flow-header .section-title {
    font-size:25px
  }
  .feature-grid {
    grid-template-columns:1fr 1fr
  }
  .feature-grid .card:last-child {
    grid-column:1/-1;
    max-width:570px;
    width:100%;
    margin-inline:auto
  }
  .obs-output {
    gap:30px
  }
  .closing .wrap {
    flex-direction:column;
    align-items:flex-start
  }
  .page-footer .wrap {
    font-size:12px
  }
  .card p {
    font-size:13px
  }
}

    @media(max-width:580px) {
  .wrap {
    width:calc(100% - 40px)
  }
  .brand {
    gap:8px
  }
  .brand strong {
    font-size:19px
  }
  .brand small {
    font-size:7px
  }
  .brand svg {
    width:31px;
    height:31px
  }
  .language {
    display:none
  }
  .nav .button.small {
    font-size:11px;
    padding:9px 10px
  }
  .hero h1 {
    font-size:clamp(29px,7.7vw,43px)
  }
  .hero-inner {
    padding:32px 0
  }
  .hero-lead {
    font-size:14px
  }
  .hero-actions {
    gap:15px
  }
  .hero-actions .button {
    font-size:12px;
    padding:12px 14px
  }
  .hero .text-link {
    font-size:12px
  }
  .hero .fine {
    font-size:12px
  }
  .hero-visual figcaption {
    font-size:12px;
    margin-top:14px;
    padding:6px 12px
  }
  .capabilities .wrap {
    gap:16px 20px;
    padding-block:20px
  }
  .capability {
    font-size:12px
  }
  .capability svg {
    width:18px;
    height:18px
  }
  .section,.origin,.features {
    padding-block:38px
  }
  .section-title {
    font-size:25px
  }
  .origin p:not(.eyebrow) {
    font-size:13px
  }
  .reminder {
    font-size:12px;
    padding:15px 12px;
    gap:12px
  }
  .reminder>svg {
    width:22px
  }
  .prep-stack {
    grid-template-columns:1fr
  }
  .card-copy {
    padding:22px 20px
  }
  .uvr .screenshot {
    margin:0 14px
  }
  .caption {
    margin-inline:14px!important;
    font-size:12px!important
  }
  .prep-grid {
    gap:14px
  }
  .prep-stack {
    gap:14px
  }
  .card h3 {
    font-size:18px
  }
  .flow-header .section-title {
    font-size:24px
  }
  .flow-section {
    padding-bottom:38px
  }
  .workflow {
    grid-template-columns:1fr
  }
  .flow-card {
    padding:18px 21px
  }
  .flow-value {
    margin:10px 0 4px
  }
  .meter {
    margin-top:9px;
    height:25px
  }
  .feature-grid {
    grid-template-columns:1fr;
    gap:17px
  }
  .feature-grid .card:last-child {
    grid-column:auto;
    max-width:none
  }
  .feature-grid p {
    min-height:0
  }
  .feature-grid h3 {
    font-size:18px
  }
  .obs-output {
    grid-template-columns:1fr;
    margin-top:30px;
    padding-top:30px;
    gap:25px
  }
  .obs-output .screenshot {
    max-width:none
  }
  .closing {
    padding:32px 0
  }
  .closing h2 {
    font-size:23px
  }
  .closing-actions {
    gap:22px
  }
  .closing .button {
    font-size:13px;
    padding:12px 17px
  }
  .closing .text-link {
    font-size:12px
  }
  .page-footer .wrap {
    flex-direction:column;
    gap:6px
  }
  .lightbox {
    padding:12px;
    max-width:98vw
  }
  .lightbox-bar p {
    font-size:12px
  }
  .lightbox-bar {
    gap:12px
  }
  .lightbox img {
    max-height:78vh
  }
}

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


    :root {
  color-scheme:light
}
html[data-theme="dark"] {
  color-scheme:dark;
  --ink:#e5edf3;
  --muted:#a5b6c5;
  --teal:#72d6cd;
  --mint:#174943;
  --paper:#131d27;
  --line:#2b3b49;
  --white:#0e1720
}

    html[data-theme="dark"] .site-header {
  background:#101a24;
  border-color:#263440
}
html[data-theme="dark"] .hero {
  background:linear-gradient(180deg,#101923,#0f1923)
}
html[data-theme="dark"] .hero .eyebrow {
  background:#183c3b
}
html[data-theme="dark"] .fine,html[data-theme="dark"] .caption,html[data-theme="dark"] .flow-footnote {
  color:#9cadba
}
html[data-theme="dark"] .hero-visual figcaption {
  color:#a3eee1
}
html[data-theme="dark"] .capabilities {
  background:#0f1923;
  border-color:#263440
}
html[data-theme="dark"] .button {
  background:#bcefe0;
  color:#142b30
}
html[data-theme="dark"] .button:hover {
  background:#defbed
}
html[data-theme="dark"] .card,html[data-theme="dark"] .reminder {
  background:#182430;
  border-color:#2b3b49
}
html[data-theme="dark"] .formats,html[data-theme="dark"] .youtube {
  background:#151f2a
}
html[data-theme="dark"] .format-tags span,html[data-theme="dark"] .youtube-source {
  background:#1e2d3a;
  border-color:#354756;
  color:#c4d5df
}
html[data-theme="dark"] .youtube-source span {
  color:#b5c5d1
}
html[data-theme="dark"] .mode-switch {
  background:#1d2a37;
  border-color:#314454
}
html[data-theme="dark"] .mode-switch button[aria-pressed="true"] {
  color:#b2f2e4
}
html[data-theme="dark"] .flow-card {
  background:#182430
}
html[data-theme="dark"] .flow-card:last-child {
  background:#16332f
}
html[data-theme="dark"] .flow-label {
  color:#abc1cf
}
html[data-theme="dark"] .check {
  color:#123332
}
html[data-theme="dark"] .obs-output {
  border-color:#2b3b49
}
html[data-theme="dark"] .closing {
  background:#182d39
}
html[data-theme="dark"] .closing .button {
  background:#bcefe0;
  color:#173b40
}
html[data-theme="dark"] .page-footer {
  background:#0b121a
}
html[data-theme="dark"] .hero .screenshot {
  box-shadow:0 18px 44px #0005,0 2px 9px #0004
}

    .appearance {
  position:relative;
  flex-shrink:0
}
.appearance summary {
  width:34px;
  height:34px;
  display:flex;
  justify-content:center;
  align-items:center;
  border:1px solid var(--line);
  border-radius:50%;
  cursor:pointer;
  list-style:none;
  color:var(--muted)
}
.appearance summary::-webkit-details-marker {
  display:none
}
.appearance summary svg {
  width:17px;
  height:17px
}
.appearance summary:hover {
  color:var(--teal);
  border-color:var(--teal)
}
.appearance-menu {
  position:absolute;
  z-index:8;
  right:0;
  top:43px;
  width:190px;
  padding:6px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:0 9px 28px #10273622
}
.appearance-menu button {
  display:block;
  text-align:left;
  width:100%;
  border:0;
  border-radius:7px;
  padding:8px 11px;
  color:var(--ink);
  background:transparent;
  font-size:13px
}
.appearance-menu button:hover {
  background:var(--paper)
}
.appearance-menu button[aria-pressed="true"] {
  background:var(--mint);
  color:var(--teal);
  font-weight:700
}
.appearance summary:focus-visible {
  outline:3px solid var(--teal);
  outline-offset:4px
}

    .card {
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease
}
.card:hover {
  transform:translateY(-3px);
  border-color:#aac9ca;
  box-shadow:0 12px 28px #152e3c09
}
.nav-links a {
  position:relative
}
.nav-links a::after {
  content:"";
  position:absolute;
  left:0;
  bottom:-5px;
  width:100%;
  height:1px;
  background:var(--teal);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s
}
.nav-links a:hover::after {
  transform:scaleX(1)
}
.hero-copy {
  animation:arrive .7s ease both
}
.hero-visual {
  animation:arrive .9s .08s ease both
}
.will-reveal {
  opacity:0;
  transform:translateY(18px);
  transition:opacity .65s ease,transform .65s ease
}
.will-reveal.is-visible {
  opacity:1;
  transform:translateY(0)
}
@keyframes arrive {
  from {
    opacity:0;
    transform:translateY(15px)
  }
  to {
    opacity:1;
    transform:translateY(0)
  }
}

    html:not([lang="zh-TW"]):not([lang="zh-CN"]) .hero h1 {
  font-size:clamp(28px,2.9vw,44px);
  line-height:1.3
}
html:not([lang="zh-TW"]):not([lang="zh-CN"]) .hero h1 span {
  white-space:normal
}
html:not([lang="zh-TW"]):not([lang="zh-CN"]) .hero-actions {
  flex-wrap:wrap;
  gap:15px
}
html:not([lang="zh-TW"]):not([lang="zh-CN"]) .section-title {
  font-size:29px
}
.hero-actions .text-link {
  white-space:normal
}
.capability {
  min-width:0
}
.reminder span:not(.check) {
  min-width:0
}
.card h3 {
  overflow-wrap:anywhere
}
.closing-actions {
  flex-wrap:wrap
}

    @media(max-width:1180px) {
  .nav-actions {
    gap:9px
  }
  .language {
    width:88px;
    font-size:12px
  }
  .nav-links {
    gap:19px
  }
  .nav-links a {
    font-size:13px
  }
  .nav {
    gap:15px
  }
}

    @media(max-width:880px) {
  .nav {
    flex-wrap:wrap;
    padding-block:15px;
    row-gap:13px
  }
  .nav-links {
    display:flex;
    order:3;
    width:100%;
    justify-content:center;
    gap:28px
  }
  .nav-links a {
    font-size:12px
  }
  .nav-actions {
    margin-left:auto
  }
  .capability {
    flex:0 1 auto
  }
  .workflow {
    grid-template-columns:1fr
  }
  .flow-header {
    gap:17px
  }
  html:not([lang="zh-TW"]):not([lang="zh-CN"]) .hero h1 {
    font-size:40px
  }
}

    @media(max-width:580px) {
  .nav-actions {
    gap:7px
  }
  .appearance summary {
    width:29px;
    height:29px
  }
  .brand strong {
    font-size:18px
  }
  .brand small {
    font-size:6px
  }
  .brand svg {
    width:28px
  }
  .nav .button.small {
    display:none
  }
  .nav {
    gap:8px;
    row-gap:13px
  }
  .language {
    display:block;
    width:89px;
    font-size:11px
  }
  .nav-links {
    gap:28px;
    padding-bottom:2px
  }
  .capabilities .wrap {
    justify-content:flex-start
  }
  .capability {
    flex-basis:calc(50% - 12px);
    font-size:12px
  }
  .hero-actions .button {
    white-space:normal
  }
  .flow-value {
    font-size:16px
  }
  .mode-switch button {
    padding:8px 17px
  }
  .hero h1 {
    font-size:clamp(27px,7.6vw,42px)
  }
  html:not([lang="zh-TW"]):not([lang="zh-CN"]) .hero h1 {
    font-size:32px
  }
  .section-title,html:not([lang="zh-TW"]):not([lang="zh-CN"]) .section-title {
    font-size:25px
  }
  .hero-visual figcaption {
    width:100%;
    text-align:center
  }
  .text-link {
    white-space:normal
  }
  .caption {
    align-items:flex-start
  }
  .caption a {
    white-space:normal
  }
  .closing-actions {
    gap:17px
  }
}

    @media(prefers-reduced-motion:reduce) {
  .will-reveal {
    opacity:1;
    transform:none
  }
  .hero-copy,.hero-visual {
    animation:none
  }
  .card:hover,.screenshot:hover,.button:hover {
    transform:none
  }
}


/* Cool slate surfaces for dark mode; teal remains a small accent. */
html[data-theme="dark"] {
  --mint:#223646;
  --blue-soft:#1b2a37
}

html[data-theme="dark"] .hero .eyebrow,html[data-theme="dark"] .flow-card:last-child {
  background:#1b2b38
}

html[data-theme="dark"] .language option:checked {
  background:#284456;
  color:#e5f4fc
}

html[data-theme="dark"] .reader-shell .chapter-list a[aria-current="page"] {
  background:#223646;
  color:#b7e0f0;
  box-shadow:none
}

html[data-theme="dark"] .chapter-list a[aria-current="page"] .chapter-preview-badge {
  color:#b7e0f0
}

/* Preserve the original application artwork in the shared site header. */
.brand .brand-icon { width: 38px; height: 38px; flex: 0 0 auto; object-fit: contain; }
@media (max-width: 600px) { .brand .brand-icon { width: 32px; height: 32px; } }

/* A plain author story after the product tour. */
.why-free {
  background:var(--white);
  padding:72px 0;
  border-top:1px solid var(--line)
}
.why-free .wrap {
  display:grid;
  grid-template-columns:minmax(200px,.7fr) minmax(0,1.6fr);
  gap:72px;
  align-items:start
}
.why-free-story {
  max-width:760px
}
.why-free-story p {
  font-size:16px;
  line-height:1.95;
  color:var(--muted);
  overflow-wrap:anywhere
}
.why-free-story p+p {
  margin-top:18px
}
@media(max-width:900px) {
  .why-free .wrap { grid-template-columns:1fr; gap:24px }
  .why-free { padding:48px 0 }
}
@media(max-width:600px) {
  .why-free { padding:38px 0 }
  .why-free .wrap { gap:20px }
}

/* Additional playback and OBS details stay within their existing sections. */
.timestamp-feature { margin-top:30px }
.timestamp-feature h3 { display:flex; align-items:center; gap:10px; margin:0; color:var(--ink); font-size:18px; line-height:1.5 }
.timestamp-feature h3 svg { width:21px; height:21px; color:var(--teal) }
.timestamp-feature p { margin-top:10px }
.timestamp-feature .text-link { margin-top:10px }

/* Focus the card preview on the real player; the lightbox shows the full screenshot. */
.feature-grid .playback-feature .screenshot img { object-fit:cover; object-position:center 20% }

/* Rights reminders are readable copy, without a separate colored warning panel. */
.content-use-note { color:var(--muted); font-size:14px; line-height:1.85 }
.content-use-note strong { color:var(--ink); font-size:14px; font-weight:600 }
.content-use-note p { margin:6px 0 0; font-size:14px; line-height:1.85 }
.uvr > .content-use-note { margin:4px 24px 24px }
.youtube .content-use-note { margin-top:24px }
.youtube .content-use-note p { max-width:none }
.download-content-use { margin:18px 0 24px }