/* A quiet paper-and-ink visual system, shared by every landing-page section. */
@font-face {
  font-family: 'Recopy Sketch';
  src: url('media/sketch.woff2') format('woff2');
  font-display: swap;
}
:root {
  color-scheme: light;
  --bg: #f8f7f0;
  --surface: #fffef9;
  --text: #263e34;
  --text-secondary: #62695e;
  --line: #dbded2;
  --soft: #eef0e6;
  --green: #284f3c;
  --on-green: #fffef5;
  --yellow: #edd17b;
  --pink: #edc9b8;
  --mint: #dce9d6;
  --note: #fcf0be;
  --selected: #e4eedd;
  --focus: #397044;
  --shadow: 0 12px 32px #273c2910;
  --font: Inter, 'Avenir Next', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, monospace;
  --hand: 'Recopy Sketch', 'Kaiti SC', serif;
}
[data-theme='dark'] {
  color-scheme: dark;
  --bg: #19251f;
  --surface: #223027;
  --text: #eeeede;
  --text-secondary: #b4bdad;
  --line: #465247;
  --soft: #25382c;
  --green: #dce9ca;
  --on-green: #213429;
  --yellow: #e1c577;
  --pink: #715146;
  --mint: #354d39;
  --note: #3c3929;
  --selected: #354d39;
  --focus: #e6c76c;
  --shadow: 0 12px 32px #00000020;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
button,
input,
textarea {
  font: inherit;
}
button {
  color: inherit;
  cursor: pointer;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
svg {
  flex-shrink: 0;
}
button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
button,
a,
input,
summary {
  -webkit-tap-highlight-color: transparent;
}
button,
a,
summary {
  touch-action: manipulation;
}
:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 5px;
}
::selection {
  background: var(--yellow);
  color: #263e34;
}
.container,
.nav-inner {
  width: min(1220px, calc(100% - 96px));
  margin: auto;
}
.section-space {
  padding: 100px 0;
}
h1,
h2,
h3 {
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.045em;
  text-wrap: balance;
}
h2 {
  font-size: clamp(32px, 3.8vw, 48px);
}
p {
  text-wrap: pretty;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}
.skip-link {
  position: fixed;
  top: 8px;
  left: 20px;
  transform: translateY(-160%);
  z-index: 100;
  background: var(--surface);
  padding: 10px 20px;
  border: 2px solid var(--focus);
}
.skip-link:focus {
  transform: none;
}
.section-kicker {
  font: 11px var(--font-mono);
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  margin-bottom: 22px;
}
.text-link,
.text-button,
.install-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  font-size: 13px;
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 5px;
  background: none;
  border: none;
}
.text-link svg,
.text-button svg,
.install-link svg {
  width: 16px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 12px 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  transition:
    background 0.18s,
    transform 0.18s;
  background: var(--surface);
  white-space: normal;
}
.btn:hover {
  transform: translateY(-2px);
  background: var(--soft);
}
.btn-primary {
  background: var(--green);
  border-color: var(--green);
  color: var(--on-green);
}
.btn-primary:hover {
  background: var(--text);
  border-color: var(--text);
}
.btn-outline {
  background: transparent;
  border-color: transparent;
}
.btn-outline:hover {
  background: var(--soft);
}
.btn-sm {
  min-height: 42px;
  padding: 9px 17px;
}
.icon-button {
  width: 44px;
  height: 44px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
}
.icon-button:hover,
.language-button:hover {
  background: var(--soft);
}
/* Navigation and introduction */
.nav {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -1px;
}
.nav-logo img {
  width: 32px;
  height: 32px;
  border-radius: 9px;
}
.logo-dot {
  color: #b38216;
}
.nav-links,
.nav-actions {
  display: flex;
  align-items: center;
  gap: 25px;
}
.nav-link {
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 4px;
  min-height: 44px;
}
.nav-link svg {
  display: none;
}
.nav-link:hover {
  text-decoration: underline;
  text-underline-offset: 6px;
}
.nav-actions {
  gap: 12px;
}
.nav-actions .icon-button {
  border-color: transparent;
}
.language-button {
  border: 0;
  background: none;
  padding: 8px;
  min-height: 44px;
  font-size: 12px;
  min-width: 40px;
}
.hero {
  padding: 83px 0 0;
}
.hero-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 54px;
  align-items: center;
}
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  font: 11px var(--font-mono);
  letter-spacing: 0.08em;
  margin-bottom: 27px;
  color: var(--text-secondary);
}
.eyebrow-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #64875e;
}
.hero-title {
  font-size: clamp(45px, 4.75vw, 66px);
  line-height: 1.17;
  letter-spacing: -0.055em;
}
.hero-title span {
  position: relative;
  display: inline-block;
  z-index: 0;
}
.hero-title span::after {
  content: '';
  position: absolute;
  height: 10px;
  border-radius: 50% 25% 60% 35%;
  left: -3px;
  right: -5px;
  bottom: 6px;
  background: var(--yellow);
  z-index: -1;
  transform: rotate(-1.6deg);
}
:lang(zh-CN) .hero-title {
  font-size: clamp(44px, 4.4vw, 62px);
  line-height: 1.3;
  letter-spacing: -0.055em;
}
.hero-desc {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-secondary);
  margin-top: 28px;
  max-width: 480px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 29px;
}
.hero-actions .btn {
  padding-left: 17px;
  padding-right: 17px;
}
.hero-actions svg {
  width: 18px;
  height: 18px;
}
.hero-trust {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 20px;
}
.install-link {
  margin-top: 4px;
  font-size: 11px;
  color: var(--text-secondary);
}
.film-card {
  position: relative;
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  transform: rotate(1.5deg);
  margin: 0 0 35px;
}
.film-card::before {
  content: '';
  position: absolute;
  background: var(--yellow);
  opacity: 0.6;
  width: 92px;
  height: 25px;
  top: -12px;
  left: calc(50% - 46px);
  transform: rotate(-4deg);
  z-index: 2;
}
.film-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 19px 12px;
  gap: 12px;
  font: 9px var(--font-mono);
  color: var(--text-secondary);
  letter-spacing: 0.07em;
}
.film-duration {
  white-space: nowrap;
}
.film-cover {
  display: block;
  width: 100%;
  border: 0;
  background: #f7f3e8;
  position: relative;
}
.film-cover img {
  width: 100%;
  height: auto;
}
.film-play {
  position: absolute;
  bottom: 13%;
  right: 8%;
  border-radius: 50%;
  width: 53px;
  height: 53px;
  display: grid;
  place-items: center;
  background: #294e3b;
  color: #fffdf0;
  box-shadow: 0 3px 9px #0002;
  transition: transform 0.18s;
}
.film-play svg {
  width: 22px;
  fill: currentColor;
}
.film-cover:hover .film-play {
  transform: scale(1.1);
}
.film-card figcaption {
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  font: 16px var(--hand);
}
.film-caption-tag {
  font: 10px var(--font-mono);
  color: var(--text-secondary);
}
.film-note {
  position: absolute;
  bottom: -43px;
  right: 10px;
  font: 20px var(--hand);
  color: var(--text-secondary);
  transform: rotate(-4deg);
}
.content-ribbon {
  margin-top: 76px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 26px 0 29px;
}
.ribbon-label {
  font: 19px var(--hand);
}
.type-list {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.type-list > span {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
}
.type-list svg {
  width: 17px;
}
/* A usable, synthetic clipboard experience */
.experience {
  padding: 76px 0 70px;
  background: var(--soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.experience-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 34px;
}
.experience-heading h2 {
  font-size: 36px;
  margin-bottom: 14px;
}
.experience-heading p:not(.section-kicker) {
  font-size: 14px;
  color: var(--text-secondary);
}
.demo-sticker {
  background: var(--yellow);
  color: #37432a;
  font: 18px var(--hand);
  padding: 10px 18px;
  transform: rotate(-5deg);
}
.experience-layout {
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  gap: 25px;
  align-items: stretch;
}
.clipboard-demo {
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.clipboard-demo-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
  padding: 15px 20px;
  border-bottom: 1px solid var(--line);
}
.clipboard-demo-title > span:first-child {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 650;
}
.demo-label {
  font: 10px var(--font-mono);
  color: var(--text-secondary);
}
.demo-search-wrap {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 17px 18px 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 5px 9px;
  background: var(--bg);
}
.demo-search-wrap:focus-within {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}
.demo-search-wrap > svg {
  width: 17px;
  color: var(--text-secondary);
}
#demo-search {
  font-size: 13px;
  color: var(--text);
  background: none;
  min-width: 0;
  flex: 1;
  width: 100%;
  padding: 8px 0;
  border: 0;
  outline: none;
}
.search-suggestion {
  min-height: 36px;
  white-space: nowrap;
  border: 0;
  border-radius: 5px;
  background: var(--soft);
  padding: 7px 10px;
  font-size: 11px;
}
.demo-filters {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  padding: 0 18px 14px;
}
.demo-filters button {
  background: transparent;
  border: 1px solid transparent;
  min-height: 38px;
  border-radius: 5px;
  padding: 7px 11px;
  font-size: 12px;
}
.demo-filters button[aria-pressed='true'] {
  background: var(--selected);
  border-color: var(--line);
}
.demo-items {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  padding: 0 18px;
  min-height: 298px;
  align-content: start;
}
.demo-item {
  position: relative;
  min-width: 0;
  min-height: 143px;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 12px;
  text-align: left;
  background: var(--bg);
  transition:
    background 0.18s,
    border-color 0.18s;
}
.demo-item:hover {
  border-color: var(--green);
}
.demo-item[aria-pressed='true'] {
  background: var(--selected);
  border: 1.5px solid var(--green);
}
.demo-item-top {
  display: flex;
  gap: 5px;
  align-items: center;
  font-size: 10px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  padding-right: 12px;
}
.demo-item-top svg {
  width: 14px;
  height: 14px;
}
.demo-item strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.item-description {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: 8px;
  font-size: 11px;
  line-height: 1.65;
  color: var(--text-secondary);
  overflow-wrap: anywhere;
}
.item-pin {
  position: absolute;
  width: 12px;
  height: 12px;
  top: 14px;
  right: 10px;
  fill: var(--yellow);
  stroke: var(--text);
}
.demo-empty {
  grid-column: 1/-1;
  min-height: 280px;
  display: grid;
  place-content: center;
  color: var(--text-secondary);
  font-size: 13px;
  text-align: center;
}
.demo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 18px 0;
}
.demo-actions .btn {
  min-height: 42px;
  padding: 8px 12px;
  font-size: 12px;
  gap: 6px;
}
.demo-actions svg {
  width: 15px;
  height: 15px;
}
.demo-actions kbd {
  border: 0;
  background: none;
  padding: 0;
  box-shadow: none;
}
.demo-status {
  font-size: 11px;
  color: var(--text-secondary);
  padding: 12px 18px;
  min-height: 45px;
}
.idea-note {
  min-width: 0;
  background: var(--note);
  padding: 22px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  border-radius: 2px 12px 12px 2px;
  position: relative;
}
.idea-note::before {
  content: '';
  height: 22px;
  width: 70px;
  background: color-mix(in srgb, var(--surface) 65%, transparent);
  position: absolute;
  top: -10px;
  left: calc(50% - 35px);
  transform: rotate(4deg);
}
.note-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.note-top > span {
  font: 10px var(--font-mono);
  letter-spacing: 0.09em;
  color: var(--text-secondary);
}
.note-top .icon-button {
  width: 36px;
  height: 36px;
  border: 0;
}
.note-top .icon-button svg {
  width: 17px;
}
.idea-note h3 {
  font: 26px var(--hand);
  margin-bottom: 18px;
  letter-spacing: 0;
}
#demo-note {
  flex: 1;
  min-height: 250px;
  width: 100%;
  padding: 10px 0;
  resize: none;
  border: 0;
  border-top: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  font: 18px/1.9 var(--hand);
}
#demo-note::placeholder {
  color: var(--text-secondary);
  opacity: 0.8;
}
.demo-boundary {
  border-top: 1px solid var(--line);
  padding-top: 14px;
  margin-top: auto;
  font-size: 11px;
  color: var(--text-secondary);
}
.experience-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-top: 19px;
}
.experience-foot p {
  font-size: 11px;
  color: var(--text-secondary);
}
/* Three concrete stories, with lightweight HTML illustrations */
.section-heading {
  margin-bottom: 42px;
}
.section-intro {
  color: var(--text-secondary);
  font-size: 15px;
  margin-top: 19px;
}
.story-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 34px;
}
.story-card {
  min-width: 0;
}
.story-art {
  min-height: 215px;
  background: var(--mint);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 27px;
  gap: 16px;
  color: var(--text);
}
.story-02 .story-art {
  background: var(--note);
}
.story-03 .story-art {
  background: color-mix(in srgb, var(--pink) 55%, var(--bg));
}
.mini-search {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 9px 12px;
  border-radius: 7px;
}
.mini-search svg {
  width: 15px;
}
.mini-result {
  display: flex;
  gap: 10px;
  align-items: center;
  background: var(--surface);
  padding: 15px 12px;
  border-radius: 7px;
  box-shadow: 0 4px 12px #00000008;
}
.mini-result > svg {
  width: 17px;
}
.mini-result strong {
  display: block;
  font-size: 12px;
  font-weight: 500;
}
.mini-result small {
  display: block;
  font-size: 10px;
  color: var(--text-secondary);
  margin-top: 4px;
}
.result-check {
  margin-left: auto;
}
.result-check svg {
  width: 15px;
  color: var(--green);
}
.mini-pin {
  background: var(--surface);
  border-radius: 6px;
  position: relative;
  padding: 20px 18px;
  transform: rotate(-3deg);
  box-shadow: 0 6px 10px #00000008;
}
.mini-pin > svg {
  width: 16px;
  height: 16px;
  fill: var(--yellow);
  margin-right: 5px;
  vertical-align: middle;
}
.mini-pin strong {
  font-size: 12px;
}
.mini-pin p {
  font: 16px/1.7 var(--hand);
  margin: 12px 0;
}
.mini-note {
  display: inline-block;
  border-top: 1px solid var(--line);
  padding-top: 8px;
  font-size: 10px;
  color: var(--text-secondary);
}
.mini-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  font-size: 12px;
}
.mini-flow > span {
  display: flex;
  align-items: center;
  gap: 6px;
}
.mini-flow svg {
  width: 17px;
}
.mini-flow kbd {
  padding: 3px 18px;
  font-size: 18px;
}
.mini-document {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 17px;
  background: var(--surface);
  border-radius: 5px;
}
.mini-document > span {
  height: 2px;
  background: var(--line);
  width: 80%;
}
.mini-document > span:nth-child(2) {
  width: 60%;
}
.mini-document > .inserted {
  height: auto;
  min-height: 27px;
  padding: 5px;
  font: 12px/1.5 var(--hand);
  width: 100%;
  background: var(--selected);
  color: var(--text);
}
.story-copy {
  padding-top: 23px;
}
.story-number {
  font: 11px var(--font-mono);
  color: var(--text-secondary);
}
.story-copy h3 {
  font-size: 21px;
  letter-spacing: -0.03em;
  margin: 12px 0 14px;
  line-height: 1.5;
}
.story-copy p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-secondary);
}
.native-section {
  margin-top: 76px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
}
.native-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  margin-bottom: 26px;
}
.native-heading h3 {
  font-size: 24px;
  letter-spacing: -0.025em;
}
.native-heading p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 10px;
}
.native-preview {
  display: block;
  width: 100%;
  padding: 22px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.native-preview img {
  width: 100%;
  border-radius: 7px;
}
.native-caption {
  font: 10px var(--font-mono);
  color: var(--text-secondary);
  text-align: center;
  margin-top: 16px;
  letter-spacing: 0.04em;
}
.keyboard-strip {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: center;
  padding-top: 44px;
}
.keyboard-strip > p {
  font-size: 16px;
  font-weight: 500;
}
.keyboard-strip > p > span {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: var(--text-secondary);
  margin-top: 4px;
}
.key-actions {
  display: flex;
  gap: 23px;
  align-items: center;
  flex-wrap: wrap;
}
.key-actions > div > span {
  display: block;
  font-size: 11px;
  margin-top: 7px;
  color: var(--text-secondary);
}
kbd {
  display: inline-block;
  background: var(--surface);
  border: 1px solid var(--line);
  border-bottom: 3px solid var(--line);
  border-radius: 5px;
  font: 11px var(--font-mono);
  padding: 7px 8px;
  min-width: 28px;
  text-align: center;
}
/* Local-data promises */
.privacy-section {
  background: #284637;
  color: #f4f2df;
  padding: 80px 0;
}
.privacy-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 95px;
}
.privacy-section .section-kicker {
  color: #c3cfb7;
}
.privacy-section h2 {
  font-size: 43px;
  line-height: 1.4;
}
.privacy-subtitle {
  font-size: 15px;
  color: #c3cfb7;
  margin: 22px 0 13px;
}
.privacy-section .text-link {
  color: #ead391;
}
.privacy-promises {
  padding-top: 8px;
}
.privacy-promise {
  display: flex;
  gap: 19px;
  margin-bottom: 26px;
}
.privacy-promise > svg {
  color: #e0ca85;
  width: 23px;
  margin-top: 3px;
}
.privacy-promise h3 {
  font-size: 17px;
  letter-spacing: 0;
  margin-bottom: 7px;
}
.privacy-promise p {
  font-size: 13px;
  line-height: 1.8;
  color: #c3cfb7;
}
.privacy-footnote {
  font-size: 11px;
  color: #c3cfb7;
  border-top: 1px solid #648170;
  padding-top: 19px;
}
/* Download, questions and the quiet footer */
.download-layout {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 85px;
  align-items: start;
}
.download-copy h2 {
  font-size: 44px;
  line-height: 1.4;
}
.download-copy > p:not(.section-kicker) {
  margin-top: 22px;
  font-size: 15px;
  color: var(--text-secondary);
}
.download-seal {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  margin-top: 27px;
  color: var(--text-secondary);
}
.download-seal svg {
  width: 16px;
}
.install-details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 6px 24px;
}
.install-details summary {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
  list-style: none;
  padding: 19px 0;
  font-size: 16px;
  font-weight: 500;
}
.install-details summary > span {
  display: flex;
  align-items: center;
  gap: 10px;
}
.install-details summary > span > svg {
  display: none;
}
.install-details summary > svg {
  width: 17px;
}
.install-details[open] summary > svg {
  transform: rotate(180deg);
}
summary::-webkit-details-marker {
  display: none;
}
.install-content {
  border-top: 1px solid var(--line);
  padding: 20px 0;
}
.platform-downloads {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.platform-downloads .btn {
  font-size: 12px;
  padding: 11px 8px;
  background: var(--soft);
  border-color: transparent;
}
.platform-downloads .btn:hover {
  border-color: var(--green);
}
.platform-downloads .text-button {
  justify-content: center;
  font-size: 11px;
}
.install-brew {
  margin-top: 25px;
  font-size: 12px;
}
.install-command {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  margin-top: 10px;
  width: 100%;
  text-align: left;
}
.install-command code {
  font-size: 11px;
  overflow-wrap: anywhere;
}
.install-command svg {
  width: 16px;
}
.install-notice {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-top: 21px;
}
.install-content > .text-button {
  font-size: 12px;
}
#install-copy-status {
  font-size: 11px;
  color: var(--text-secondary);
  min-height: 18px;
}
.faq-section {
  padding: 0 0 100px;
}
.faq-layout {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 85px;
  border-top: 1px solid var(--line);
  padding-top: 64px;
}
.faq-layout h2 {
  font-size: 33px;
  margin-bottom: 17px;
}
.faq-list details {
  border-bottom: 1px solid var(--line);
}
.faq-list summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 25px;
  list-style: none;
  cursor: pointer;
  padding: 20px 0;
  font-size: 14px;
  font-weight: 500;
}
.faq-list summary svg {
  width: 16px;
}
.faq-list details[open] summary svg {
  transform: rotate(180deg);
}
.faq-list details > p {
  font-size: 13px;
  line-height: 1.85;
  color: var(--text-secondary);
  padding: 0 30px 22px 0;
}
.footer {
  background: var(--soft);
  border-top: 1px solid var(--line);
  padding: 47px 0 22px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
.footer-tagline {
  font: 18px var(--hand);
  color: var(--text-secondary);
  margin-top: 12px;
}
.footer-links {
  display: flex;
  gap: 30px;
  align-items: center;
  font-size: 12px;
}
.footer-link {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
}
.footer-link svg {
  width: 15px;
}
.footer-links a:hover {
  text-decoration: underline;
  text-underline-offset: 6px;
}
.support-details {
  margin-top: 22px;
}
.support-details summary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  list-style: none;
  font-size: 12px;
  color: var(--text-secondary);
  min-height: 44px;
}
.support-details summary svg {
  width: 14px;
}
.support-content {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 25px;
  padding: 24px 0;
}
.support-content img {
  width: 150px;
  height: auto;
  border-radius: 8px;
}
.support-content figcaption {
  font-size: 11px;
  text-align: center;
  margin-top: 10px;
}
.support-content > p {
  font-size: 13px;
  color: var(--text-secondary);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
  margin-top: 22px;
  font: 10px var(--font-mono);
  letter-spacing: 0.03em;
  color: var(--text-secondary);
}
/* Native accessible media dialogs */
.media-dialog,
.sample-dialog {
  margin: auto;
  width: min(1000px, calc(100% - 40px));
  max-height: calc(100dvh - 40px);
  overflow: auto;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 24px 80px #0005;
}
.media-dialog::backdrop,
.sample-dialog::backdrop {
  background: #102117d9;
}
.dialog-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 20px;
}
.dialog-heading h2 {
  font-size: 17px;
  letter-spacing: 0;
}
.dialog-heading .icon-button {
  border: 0;
}
#recopy-film {
  display: block;
  width: 100%;
  aspect-ratio: 16/9;
  background: #f7f3e8;
}
.dialog-caption {
  padding: 13px 20px;
  font-size: 12px;
  color: var(--text-secondary);
}
.product-dialog {
  width: min(1380px, calc(100% - 32px));
}
.sample-dialog {
  width: min(640px, calc(100% - 32px));
}
#sample-dialog-content {
  padding: 8px 22px 26px;
}
#sample-dialog-content p {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.8;
}
#sample-dialog-content img {
  width: 100%;
  border-radius: 8px;
  margin-bottom: 14px;
}
body:has(dialog[open]) {
  overflow: hidden;
}
@media (min-width: 1600px) {
  .hero {
    padding-top: 100px;
    padding-bottom: 10px;
  }
  .hero-layout {
    gap: 80px;
  }
}
@media (max-width: 1100px) {
  .container,
  .nav-inner {
    width: calc(100% - 64px);
  }
  .nav-links {
    gap: 15px;
  }
  .hero-layout {
    gap: 30px;
  }
  .hero-title {
    font-size: 48px;
  }
  :lang(zh-CN) .hero-title {
    font-size: 46px;
  }
  .hero-actions .btn {
    font-size: 12px;
    padding: 12px;
  }
  .hero-desc {
    font-size: 14px;
  }
  .type-list {
    gap: 19px;
  }
  .experience-layout {
    grid-template-columns: 1.6fr 1fr;
  }
  .demo-items {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    min-height: 449px;
  }
  .story-grid {
    gap: 23px;
  }
  .story-art {
    padding: 18px;
  }
  .privacy-layout,
  .download-layout,
  .faq-layout {
    gap: 50px;
  }
  .keyboard-strip {
    align-items: flex-start;
  }
  .key-actions {
    gap: 12px;
  }
}
@media (max-width: 800px) {
  .nav-links {
    display: none;
  }
  .nav-inner {
    height: 72px;
  }
  .hero {
    padding-top: 53px;
  }
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 53px;
  }
  .hero-copy {
    max-width: 600px;
  }
  .hero-title,
  :lang(zh-CN) .hero-title {
    font-size: 56px;
  }
  .hero-desc {
    font-size: 16px;
  }
  .hero-actions .btn {
    font-size: 14px;
    padding: 12px 19px;
  }
  .film-card {
    width: min(100%, 570px);
    justify-self: center;
    margin-bottom: 30px;
  }
  .content-ribbon {
    margin-top: 43px;
    flex-direction: column;
    gap: 15px;
    align-items: flex-start;
  }
  .type-list {
    gap: 25px;
  }
  .section-space {
    padding: 72px 0;
  }
  .experience {
    padding: 62px 0;
  }
  .experience-heading h2 {
    font-size: 32px;
  }
  .demo-sticker {
    display: none;
  }
  .experience-layout {
    grid-template-columns: 1fr;
  }
  .demo-items {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    min-height: 298px;
  }
  .idea-note {
    margin-top: 7px;
    min-height: 330px;
  }
  #demo-note {
    min-height: 180px;
  }
  .experience-foot {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }
  .story-grid {
    grid-template-columns: 1fr;
    gap: 35px;
  }
  .story-card {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 30px;
    align-items: center;
  }
  .story-copy {
    padding-top: 0;
  }
  .story-art {
    min-height: 220px;
  }
  .native-section {
    margin-top: 55px;
  }
  .native-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
  .native-preview {
    padding: 14px;
  }
  .keyboard-strip {
    flex-direction: column;
    gap: 22px;
  }
  .key-actions {
    gap: 23px;
  }
  .privacy-section {
    padding: 65px 0;
  }
  .privacy-layout {
    gap: 38px;
    grid-template-columns: 1fr;
  }
  .privacy-section h2 {
    font-size: 38px;
  }
  .privacy-promises {
    max-width: 550px;
  }
  .download-layout,
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .download-copy h2 {
    font-size: 40px;
  }
  .download-options {
    max-width: 600px;
    width: 100%;
  }
  .faq-section {
    padding-bottom: 65px;
  }
  .faq-layout {
    padding-top: 52px;
  }
  .footer-top {
    align-items: flex-start;
  }
  .footer-links {
    gap: 17px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }
}
@media (max-width: 480px) {
  .container,
  .nav-inner {
    width: calc(100% - 40px);
  }
  .nav-inner {
    gap: 10px;
    height: 68px;
  }
  .nav-logo {
    font-size: 23px;
    gap: 7px;
  }
  .nav-logo img {
    width: 28px;
    height: 28px;
  }
  .nav-actions {
    gap: 2px;
  }
  .nav-actions .btn-sm {
    font-size: 11px;
    min-height: 39px;
    padding: 9px 12px;
  }
  .nav-actions .icon-button {
    width: 37px;
    height: 40px;
  }
  .nav-actions .icon-button svg {
    width: 17px;
  }
  .language-button {
    font-size: 10px;
    min-width: 38px;
    padding: 5px;
  }
  .hero {
    padding-top: 39px;
  }
  .hero-eyebrow {
    font-size: 9px;
    margin-bottom: 21px;
  }
  .hero-title,
  :lang(zh-CN) .hero-title {
    font-size: 42px;
    letter-spacing: -0.055em;
  }
  .hero-title span::after {
    height: 8px;
    bottom: 5px;
  }
  .hero-desc {
    font-size: 14px;
    line-height: 1.9;
    margin-top: 22px;
  }
  .hero-actions {
    gap: 4px;
    margin-top: 23px;
  }
  .hero-actions .btn {
    font-size: 12px;
    padding: 12px 13px;
    min-height: 46px;
    gap: 7px;
  }
  .hero-actions svg {
    width: 16px;
  }
  .hero-trust {
    font-size: 10px;
    gap: 7px;
  }
  .install-link {
    font-size: 10px;
  }
  .hero-layout {
    gap: 42px;
  }
  .film-card {
    transform: rotate(0.8deg);
    margin-bottom: 25px;
  }
  .film-card-top {
    font-size: 8px;
    padding: 15px 13px 10px;
  }
  .film-card figcaption {
    font-size: 13px;
    padding: 13px;
  }
  .film-caption-tag {
    font-size: 9px;
  }
  .film-note {
    font-size: 17px;
    bottom: -34px;
  }
  .film-play {
    width: 44px;
    height: 44px;
  }
  .film-play svg {
    width: 18px;
  }
  .content-ribbon {
    margin-top: 35px;
    padding: 22px 0;
  }
  .ribbon-label {
    font-size: 17px;
  }
  .type-list {
    gap: 15px;
    row-gap: 12px;
  }
  .type-list > span {
    font-size: 11px;
    gap: 5px;
  }
  .type-list svg {
    width: 15px;
  }
  .section-kicker {
    font-size: 9px;
    margin-bottom: 17px;
  }
  .experience {
    padding: 45px 0;
  }
  .experience-heading {
    margin-bottom: 25px;
  }
  .experience-heading h2 {
    font-size: 29px;
  }
  .experience-heading p:not(.section-kicker) {
    font-size: 13px;
  }
  .clipboard-demo-title {
    padding: 13px 14px;
  }
  .demo-label {
    font-size: 9px;
  }
  .demo-search-wrap {
    margin: 14px 12px 9px;
    gap: 7px;
  }
  .search-suggestion {
    font-size: 10px;
    padding: 7px;
  }
  #demo-search {
    font-size: 12px;
  }
  .demo-filters {
    padding: 0 12px 13px;
    gap: 3px;
  }
  .demo-filters button {
    font-size: 11px;
    padding: 7px 10px;
    min-height: 38px;
  }
  .demo-items {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 0 12px;
    gap: 8px;
    min-height: 445px;
  }
  .demo-item {
    padding: 11px;
    min-height: 143px;
  }
  .demo-item strong {
    font-size: 12px;
  }
  .item-description {
    font-size: 10px;
  }
  .demo-actions {
    margin: 15px 12px 0;
    gap: 6px;
  }
  .demo-actions .btn {
    font-size: 11px;
    padding: 8px 10px;
    gap: 5px;
  }
  .demo-actions svg {
    width: 14px;
  }
  .demo-status {
    padding: 11px 12px;
    font-size: 10px;
  }
  .idea-note {
    padding: 22px;
    min-height: 320px;
  }
  .experience-foot p {
    font-size: 10px;
  }
  .text-button {
    font-size: 12px;
  }
  .section-space {
    padding: 58px 0;
  }
  .section-heading h2 {
    font-size: 34px;
  }
  .section-intro {
    font-size: 13px;
  }
  .story-card {
    display: block;
  }
  .story-grid {
    gap: 39px;
  }
  .story-art {
    min-height: 210px;
    padding: 27px 30px;
  }
  .story-copy {
    padding: 20px 0 0;
  }
  .story-copy h3 {
    font-size: 21px;
    margin: 8px 0 10px;
  }
  .story-copy p {
    font-size: 13px;
  }
  .native-heading h3 {
    font-size: 23px;
  }
  .native-heading p {
    font-size: 12px;
  }
  .native-preview {
    padding: 9px;
  }
  .native-preview img {
    min-width: 620px;
    width: 620px;
    max-width: none;
  }
  .native-preview {
    overflow: hidden;
  }
  .native-caption {
    font-size: 8px;
    line-height: 1.7;
  }
  .key-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px 28px;
  }
  .keyboard-strip {
    padding-top: 30px;
  }
  .privacy-section {
    padding: 52px 0;
  }
  .privacy-section h2 {
    font-size: 33px;
  }
  .privacy-subtitle {
    font-size: 13px;
  }
  .privacy-promise {
    gap: 15px;
  }
  .privacy-promise h3 {
    font-size: 16px;
  }
  .privacy-promise p {
    font-size: 12px;
  }
  .download-copy h2 {
    font-size: 35px;
  }
  .download-copy > p:not(.section-kicker) {
    font-size: 13px;
  }
  .install-details {
    padding: 5px 17px;
  }
  .install-details summary {
    font-size: 14px;
  }
  .platform-downloads .btn {
    font-size: 11px;
  }
  .install-command code {
    font-size: 10px;
  }
  .faq-layout h2 {
    font-size: 29px;
  }
  .faq-list summary {
    font-size: 13px;
    gap: 15px;
  }
  .faq-list details > p {
    font-size: 12px;
    padding-right: 10px;
  }
  .footer {
    padding-top: 35px;
  }
  .footer-top {
    flex-direction: column;
    gap: 18px;
  }
  .footer-links {
    justify-content: flex-start;
    font-size: 11px;
    gap: 25px;
  }
  .support-details summary {
    font-size: 11px;
  }
  .footer-bottom {
    font-size: 8px;
    gap: 15px;
  }
  .dialog-heading {
    padding: 10px 13px;
    gap: 10px;
  }
  .dialog-heading h2 {
    font-size: 14px;
  }
  .dialog-caption {
    font-size: 10px;
    padding: 11px 13px;
  }
  .media-dialog,
  .sample-dialog {
    width: calc(100% - 24px);
  }
  .product-dialog .dialog-heading {
    position: sticky;
    left: 0;
    background: var(--surface);
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
  .film-card,
  .mini-pin,
  .film-note,
  .demo-sticker {
    transform: none;
  }
  .btn:hover {
    transform: none;
  }
}
/* Preserve semantic hiding despite the generic image display reset. */
[hidden] {
  display: none !important;
}
/* Full-resolution screenshots live in a scrollable, independently zoomable stage. */
.product-dialog {
  overflow: hidden;
}
.product-dialog[open] {
  display: flex;
  flex-direction: column;
  height: min(920px, calc(100dvh - 32px));
}
.product-dialog .dialog-heading {
  flex: 0 0 auto;
}
.image-viewer-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 20px 14px;
  flex: 0 0 auto;
}
.viewer-control {
  min-width: 44px;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  font-size: 12px;
}
.viewer-control:hover:not(:disabled) {
  background: var(--soft);
}
#viewer-zoom-in,
#viewer-zoom-out {
  font-size: 22px;
  line-height: 1;
}
#viewer-scale {
  min-width: 50px;
  text-align: center;
  font: 12px var(--font-mono);
}
#viewer-original {
  margin-left: auto;
  min-height: 44px;
  font-size: 12px;
}
.image-viewer-stage {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  touch-action: none;
  background: var(--soft);
  border-block: 1px solid var(--line);
  cursor: grab;
}
.image-viewer-stage.is-dragging {
  cursor: grabbing;
  user-select: none;
}
.image-viewer-stage:focus-visible {
  outline-offset: -4px;
}
#viewer-canvas {
  display: grid;
  place-items: center;
  min-width: 100%;
  min-height: 100%;
}
#lightbox-img {
  display: block;
  max-width: none;
  flex-shrink: 0;
  user-select: none;
  -webkit-user-drag: none;
}
#viewer-status {
  flex: 0 0 auto;
  min-height: 42px;
  margin: 0;
}
@media (max-width: 600px) {
  .product-dialog[open] {
    height: calc(100dvh - 24px);
  }
  .image-viewer-toolbar {
    padding: 0 12px 12px;
    gap: 8px;
  }
  .viewer-control {
    padding: 8px 10px;
    font-size: 11px;
  }
  #viewer-original {
    margin-left: 0;
  }
  #viewer-status {
    font-size: 11px;
    line-height: 1.6;
  }
}