:root {
  font-family:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: #e9eade;
  background: #1d261f;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  --bg: #1d261f;
  --text: #e9eade;
  --muted: #a5afa3;
  --line: rgba(227, 234, 211, 0.16);
  --accent: #d4dcad;
  --serif: 'Songti SC', 'Noto Serif CJK SC', 'STSong', SimSun, serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 108px;
}
body {
  margin: 0;
}
button,
input,
textarea {
  font: inherit;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button {
  cursor: pointer;
}
button {
  color: inherit;
}
a {
  color: inherit;
  text-decoration: none;
}
button:disabled {
  cursor: not-allowed;
}
button:focus-visible,
a:focus-visible,
summary:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid #dce7ac;
  outline-offset: 5px;
}
button {
  border: 0;
}
svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.55;
  stroke-linecap: round;
  stroke-linejoin: round;
}
img {
  display: block;
}
p {
  line-height: 1.9;
  margin: 0;
}
h1,
h2,
h3 {
  margin: 0;
  font-weight: 500;
}
button {
  background: none;
}
button,
a {
  touch-action: manipulation;
}
[hidden] {
  display: none !important;
}
.wrap {
  width: min(1120px, calc(100% - 96px));
  margin-inline: auto;
}
.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 12px;
  background: var(--text);
  color: var(--bg);
  padding: 12px 20px;
  transform: translateY(-160%);
}
.skip-link:focus {
  transform: none;
}
.site-header {
  height: 88px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(29, 38, 31, 0.94);
  backdrop-filter: blur(18px);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 650;
  letter-spacing: -0.5px;
}
.brand img {
  border-radius: 9px;
}
.site-header nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 13px;
}
.site-header nav > a:not(.button) {
  color: #cbd1c5;
  transition: color 0.2s;
}
.site-header nav > a:not(.button):hover {
  color: #fff;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  min-height: 48px;
  padding: 0 23px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  transition:
    transform 0.2s,
    background 0.2s,
    box-shadow 0.2s;
  border: 1px solid transparent;
}
.button:hover {
  transform: translateY(-2px);
}
.button-paper {
  background: #e9eadf;
  color: #243025;
}
.button-paper:hover {
  background: #f8faed;
  box-shadow: 0 5px 20px #0002;
}
.button-outline {
  border-color: #a5afa3;
  background: transparent;
  color: #e3e7da;
}
.button-outline:hover {
  background: #ffffff08;
}
.button-small {
  min-height: 42px;
  padding: 0 18px;
  gap: 15px;
}
.site-header .menu-button {
  display: none;
}
.hero {
  padding-top: 102px;
  padding-bottom: 94px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: center;
  min-height: 760px;
}
.hero-brand {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 33px;
}
.hero-brand img {
  border-radius: 14px;
  box-shadow: 0 5px 12px #0002;
}
.hero-brand > span {
  font-size: 12px;
  color: #aeb9a7;
  letter-spacing: 1px;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(40px, 4.1vw, 58px);
  font-weight: 400;
  line-height: 1.58;
  letter-spacing: -1.8px;
  white-space: nowrap;
}
.underline-word {
  position: relative;
  white-space: nowrap;
  z-index: 0;
}
.underline-word:after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 6px;
  background: #e8d875;
  transform: rotate(-1.1deg);
  z-index: -1;
}
.hero-description {
  font-size: 14px;
  color: var(--muted);
  margin-top: 31px;
  line-height: 2.15;
}
.hero-actions {
  display: flex;
  gap: 13px;
  margin-top: 37px;
}
.hero-footnote {
  font-size: 11px;
  margin-top: 19px;
  color: #919e8e;
  display: flex;
  align-items: center;
  gap: 7px;
}
.tiny-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #b2c493;
}
.separator {
  margin-inline: 3px;
}
.hero-art {
  position: relative;
  isolation: isolate;
  margin-right: 4px;
}
.paper-under {
  position: absolute;
  inset: 13px 6px -3px -12px;
  border-radius: 12px;
  background: #2d352c;
  transform: rotate(-3deg);
  border: 1px solid #465041;
  z-index: -1;
}
.paper-under-two {
  transform: rotate(-5deg);
  inset: 22px 7px 8px -22px;
  opacity: 0.4;
}
.reader-preview {
  --highlight: #efd36f;
  --reader-bg: #2b302b;
  --reader-text: #d3d8cb;
  --reader-secondary: #a2ad9a;
  --reader-muted: #343b32;
  --reader-card: #222821;
  border: 1px solid #4b5146;
  background: var(--reader-bg);
  color: var(--reader-text);
  border-radius: 11px;
  transform: rotate(1.6deg);
  box-shadow: 0 25px 60px #0002;
  overflow: hidden;
  transition:
    background 0.25s,
    color 0.25s;
  position: relative;
}
.reader-preview.paper-theme {
  --reader-bg: #f3f1e7;
  --reader-text: #444a3e;
  --reader-secondary: #79806b;
  --reader-muted: #e5e4d8;
  --reader-card: #fffef6;
  border-color: #dadacd;
}
.reader-top {
  height: 53px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 23px;
  border-bottom: 1px solid #7e886329;
  font-size: 10px;
  color: var(--reader-secondary);
}
.reader-top > span {
  display: flex;
  align-items: center;
  gap: 7px;
}
.reader-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #98a886;
}
.icon-button {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 6px;
  padding: 5px;
  font-size: 24px;
}
.icon-button:hover {
  background: #858f7820;
}
.icon-button svg {
  width: 20px;
  height: 20px;
}
.reader-content {
  padding: 27px 29px 21px;
  font-size: 12px;
  line-height: 1.9;
}
.reader-meta {
  font-size: 9px;
  color: var(--reader-secondary);
  letter-spacing: 0.8px;
  display: flex;
  gap: 8px;
}
.reader-content h2 {
  font-family: var(--serif);
  font-size: 25px;
  margin: 12px 0 21px;
  line-height: 1.55;
  letter-spacing: 0.3px;
}
.reader-content > p {
  line-height: 2;
}
.annotation-tools {
  margin-top: 19px;
  margin-bottom: 8px;
  display: flex;
  flex-direction: column;
  align-items: start;
  gap: 6px;
}
.color-picker,
.tool-row {
  display: flex;
  align-items: center;
  background: var(--reader-card);
  border-radius: 7px;
  padding: 7px 8px;
  gap: 9px;
  box-shadow: 0 4px 14px #0001;
}
.color-dot {
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--swatch);
  padding: 0;
  position: relative;
  transition: transform 0.15s;
}
.color-dot:hover {
  transform: scale(1.16);
}
.color-dot.selected:after {
  content: '';
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: white;
}
.tool-row {
  gap: 4px;
  padding: 3px 4px;
}
.tool-row .icon-button {
  width: 28px;
  height: 26px;
}
.tool-row .active {
  color: var(--highlight);
}
.marked-passage {
  font-size: 13px;
}
.marked-passage span {
  text-decoration: underline;
  text-decoration-color: var(--highlight);
  text-decoration-thickness: 3px;
  text-underline-offset: 5px;
  line-height: 2.1;
}
.marked-passage span.no-mark {
  text-decoration: none;
}
.sample-note {
  background: var(--reader-card);
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 7px;
  box-shadow: 0 6px 12px #0001;
  border-left: 2px solid var(--highlight);
}
.sample-note label {
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  color: var(--reader-secondary);
  margin-bottom: 5px;
  gap: 10px;
}
.sample-note label span {
  font-size: 8px;
  opacity: 0.7;
}
.sample-note textarea {
  resize: vertical;
  display: block;
  width: 100%;
  background: transparent;
  color: var(--reader-text);
  border: 0;
  line-height: 1.8;
  font-size: 11px;
  min-height: 40px;
  max-height: 160px;
  padding: 0;
  outline-offset: 4px;
}
.sample-insight {
  padding: 12px 14px;
  background: var(--reader-muted);
  margin-top: 12px;
  border-radius: 7px;
  font-size: 11px;
}
.sample-insight > span {
  font-size: 9px;
  color: var(--reader-secondary);
}
.reader-last {
  font-size: 11px;
  margin-top: 15px;
  color: var(--reader-secondary);
}
.reader-bottom {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 24px;
  border-top: 1px solid #7e886329;
  color: var(--reader-secondary);
  font-size: 9px;
}
.interaction-hint {
  position: absolute;
  right: -14px;
  bottom: -42px;
  font-size: 10px;
  letter-spacing: 1px;
  color: #aebc9f;
  transform: rotate(-3deg);
}
.interaction-hint > span {
  font-size: 23px;
  margin-right: 6px;
}
.benefit-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 36px 12px;
  border-block: 1px solid var(--line);
  gap: 20px;
}
.benefit-strip > span {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: #c6cebd;
}
.benefit-strip svg {
  width: 23px;
  height: 23px;
}
.section {
  padding-block: 115px;
}
.section-heading {
  margin-bottom: 58px;
}
.eyebrow {
  font-family: Arial, sans-serif;
  font-size: 10px;
  letter-spacing: 1.5px;
  font-weight: 600;
  color: #b9c89f;
  margin-bottom: 17px;
}
.section h2 {
  font-family: var(--serif);
  font-size: 38px;
  line-height: 1.55;
  letter-spacing: -0.7px;
}
.muted-heading {
  color: #b9c4ad;
}
.section-heading > p:last-child:not(.eyebrow) {
  font-size: 13px;
  color: var(--muted);
  margin-top: 17px;
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 58px;
}
.step-number {
  display: block;
  color: #bfcc9f;
  font-family: Georgia, serif;
  font-style: italic;
  font-size: 35px;
  line-height: 1;
  margin-bottom: 27px;
}
.steps h3 {
  font-size: 16px;
  margin-bottom: 22px;
  line-height: 1.65;
}
.steps article > p {
  color: var(--muted);
  font-size: 12px;
  line-height: 2.1;
  min-height: 76px;
}
.mini-demo {
  width: 100%;
  min-height: 48px;
  border-radius: 9px;
  background: #ffffff04;
  border: 1px solid var(--line);
  box-shadow: inset 0 0 0 1px #ffffff03;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 12px 11px;
  font-size: 10px;
  text-align: left;
  margin-top: 25px;
  color: #cbd4c1;
  transition:
    background 0.2s,
    border-color 0.2s;
}
.mini-demo:hover {
  border-color: #8b9e70;
  background: #ffffff09;
}
.mini-demo svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}
.save-state {
  margin-left: auto;
  white-space: nowrap;
  color: #a6b5c9;
  font-size: 9px;
}
.document-symbol {
  font-size: 17px;
}
.mini-caret {
  height: 12px;
  width: 1px;
  background: #bbcc9d;
}
.round-arrow {
  margin-left: auto;
  display: grid;
  place-items: center;
  background: #dde5cd;
  color: #283422;
  border-radius: 50%;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}
.feature-section {
  display: grid;
  grid-template-columns: 1fr 1.12fr;
  align-items: center;
  gap: 70px;
  padding-top: 90px;
}
.feature-copy > p:not(.eyebrow) {
  font-size: 13px;
  color: var(--muted);
  line-height: 2.15;
  margin-top: 27px;
  max-width: 390px;
}
.quiet-list {
  list-style: none;
  padding: 0;
  margin: 25px 0 32px;
  font-size: 12px;
  color: #c6cfba;
  display: grid;
  gap: 14px;
}
.quiet-list li {
  display: flex;
  align-items: center;
  gap: 12px;
}
.quiet-list li > span {
  color: #a8b888;
}
.text-link {
  display: inline-flex;
  gap: 20px;
  align-items: center;
  padding: 0 0 8px;
  border-bottom: 1px solid #839274;
  font-size: 12px;
  color: #d2ddc2;
  margin-top: 4px;
  transition: gap 0.2s;
}
.text-link:hover {
  gap: 28px;
}
.library-illustration {
  border-radius: 11px;
  border: 1px solid #4d5846;
  background: #272f25;
  box-shadow: 0 20px 60px #0002;
  position: relative;
  transform: rotate(1.5deg);
}
.mock-window-bar {
  height: 41px;
  border-bottom: 1px solid #3c4635;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 15px;
  font-size: 9px;
  color: #9faa94;
}
.window-dots {
  display: flex;
  gap: 4px;
}
.window-dots i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #69765b;
}
.mock-app {
  display: grid;
  grid-template-columns: 137px 1fr;
  min-height: 352px;
}
.mock-app aside {
  border-right: 1px solid #3c4635;
  display: flex;
  flex-direction: column;
  gap: 13px;
  padding: 19px 12px;
  font-size: 9px;
  color: #a5b197;
}
.mock-profile {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 9px;
  color: #d7dfcc;
}
.mock-profile img {
  border-radius: 6px;
}
.mock-nav-active {
  background: #405036;
  color: #dce7cc;
  padding: 9px;
  margin-inline: -3px;
  border-radius: 5px;
}
.mock-app aside small {
  font-size: 8px;
  color: #6e7d63;
  margin-top: 13px;
}
.mock-page {
  padding: 24px 24px 17px;
  background: #f0efe4;
  border-radius: 0 0 10px 0;
  color: #555d49;
}
.mock-page > small {
  font-size: 8px;
  color: #99a08b;
}
.mock-page h3 {
  font-family: var(--serif);
  font-size: 23px;
  margin: 18px 0;
}
.mock-page > p {
  font-size: 10px;
  line-height: 2;
}
.mock-page .mock-highlight {
  font-size: 11px;
  text-decoration: underline;
  text-decoration-color: #ccb85c;
  text-decoration-thickness: 3px;
  text-underline-offset: 3px;
  margin-block: 17px;
}
.mock-note {
  border-left: 2px solid #b5bb96;
  background: #e5e6d9;
  padding: 10px 12px;
  margin-top: 16px;
  border-radius: 3px;
  font-size: 9px;
}
.mock-note > span {
  font-size: 8px;
  color: #8a927b;
}
.mock-page-footer {
  display: block;
  margin-top: 21px;
  color: #9ba28d;
  font-size: 8px;
}
.mock-page-footer > span {
  float: right;
}
.illustration-label {
  position: absolute;
  bottom: -30px;
  width: 100%;
  text-align: center;
  font-size: 9px;
  color: #819076;
  letter-spacing: 0.5px;
}
.source-section {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: 120px;
  padding-top: 105px;
  padding-bottom: 130px;
}
.source-illustration {
  position: relative;
  min-height: 380px;
  isolation: isolate;
}
.pdf-sheet {
  position: relative;
  width: 285px;
  min-height: 365px;
  background: #eceadf;
  color: #515649;
  padding: 25px 30px;
  transform: rotate(-5deg);
  margin-left: 28px;
  box-shadow: 0 15px 60px #0003;
}
.pdf-label {
  font-size: 8px;
  color: #909780;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid #cfd0bf;
  padding-bottom: 12px;
  letter-spacing: 1px;
}
.pdf-sheet h3 {
  font-family: var(--serif);
  font-size: 18px;
  margin: 21px 0;
}
.text-lines {
  display: grid;
  gap: 8px;
  margin-block: 19px;
}
.text-lines i {
  height: 3px;
  background: #cdd0bf;
}
.text-lines i:last-child {
  width: 68%;
}
.pdf-sheet > p {
  font-size: 10px;
  background: #e2d99b;
  padding: 2px 0;
  line-height: 2.1;
}
.pdf-sheet > small {
  display: block;
  text-align: center;
  font-size: 8px;
  color: #99a18a;
  margin-top: 26px;
}
.quote-slip {
  position: absolute;
  right: 4px;
  bottom: 18px;
  min-width: 216px;
  transform: rotate(5deg);
  background: #bccc9e;
  color: #2e4025;
  padding: 22px 25px 18px;
  border-radius: 5px;
  box-shadow: 0 14px 30px #0003;
}
.quote-sign {
  font-family: Georgia, serif;
  font-size: 41px;
  line-height: 1;
  color: #7d925f;
}
.quote-slip > p {
  font-family: var(--serif);
  font-size: 21px;
  line-height: 1.8;
}
.quote-slip > div {
  margin-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 8px;
  color: #64794f;
}
.source-section .text-link {
  margin-top: 28px;
}
.scenes-section {
  border-top: 1px solid var(--line);
}
.scene-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.4fr;
  gap: 100px;
}
.scene-tabs {
  display: flex;
  flex-direction: column;
  align-self: start;
}
.scene-tabs button {
  font-size: 16px;
  color: #8f9e85;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 3px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}
.scene-tabs button:first-child {
  border-top: 1px solid var(--line);
}
.scene-tabs button[aria-selected='true'] {
  color: #e2e8d6;
}
.scene-tabs button > span {
  font-size: 19px;
  transition: transform 0.2s;
}
.scene-tabs button[aria-selected='true'] > span {
  transform: rotate(45deg);
  color: #c6d3a6;
}
.scene-panel {
  position: relative;
  padding: 29px 36px 32px;
  border-left: 2px solid #b1c28e;
  background: linear-gradient(100deg, #b8c89a0b, transparent);
}
.scene-label {
  font-size: 10px;
  color: #aaba96;
  margin-bottom: 14px;
}
.scene-panel h3 {
  font-family: var(--serif);
  font-size: 28px;
  line-height: 1.7;
  letter-spacing: 0.2px;
}
.scene-panel > p:not(.scene-label) {
  font-size: 12px;
  color: var(--muted);
  margin-top: 19px;
  line-height: 2.1;
  max-width: 430px;
}
.scene-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.scene-tags > span {
  font-size: 9px;
  color: #b1c39c;
  border: 1px solid #58684c;
  border-radius: 30px;
  padding: 5px 12px;
}
.capabilities {
  padding-top: 80px;
}
.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  column-gap: 30px;
  row-gap: 25px;
  font-size: 12px;
  color: #bac6ad;
}
.capability-grid > span {
  display: flex;
  gap: 10px;
  align-items: center;
}
.capability-grid > span:before {
  content: '✓';
  color: #849976;
  font-size: 12px;
}
.ai-note {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 27px 29px;
  background: #293225;
  border: 1px solid #48543d;
  border-radius: 9px;
  margin-top: 48px;
}
.ai-note > svg {
  color: #bdcea5;
  width: 29px;
  height: 29px;
  flex-shrink: 0;
}
.ai-note h3 {
  font-size: 14px;
  margin-bottom: 7px;
}
.ai-note p {
  font-size: 11px;
  color: #a3b095;
  max-width: 730px;
  line-height: 1.9;
}
.subtle-badge {
  font-size: 9px;
  color: #a8b797;
  border: 1px solid #59694d;
  border-radius: 25px;
  padding: 5px 11px;
  white-space: nowrap;
  margin-left: auto;
}
.capability-note {
  color: #829275;
  font-size: 10px;
  margin-top: 15px;
}
.faq-section {
  display: grid;
  grid-template-columns: 0.8fr 1.4fr;
  gap: 100px;
  border-top: 1px solid var(--line);
  padding-top: 95px;
}
.faq-section h2 {
  font-size: 31px;
}
.faq-list details {
  border-bottom: 1px solid var(--line);
}
.faq-list summary {
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  padding: 23px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.faq-list details:first-child summary {
  padding-top: 7px;
}
.faq-list summary::-webkit-details-marker {
  display: none;
}
.faq-list summary > span {
  width: 14px;
  height: 14px;
  position: relative;
  flex-shrink: 0;
}
.faq-list summary > span:before,
.faq-list summary > span:after {
  content: '';
  position: absolute;
  background: #afbd9e;
  width: 11px;
  height: 1px;
  top: 7px;
  left: 1px;
}
.faq-list summary > span:after {
  transform: rotate(90deg);
  transition: transform 0.2s;
}
.faq-list details[open] summary > span:after {
  transform: rotate(0);
}
.faq-list details > p {
  color: #a3b096;
  font-size: 12px;
  line-height: 2.1;
  padding: 0 23px 25px 0;
}
.closing-section {
  text-align: center;
  padding: 82px 0 125px;
  border-top: 1px solid var(--line);
}
.closing-section > img {
  margin: 32px auto 24px;
  border-radius: 15px;
}
.closing-section h2 {
  font-family: var(--serif);
  font-size: 43px;
  line-height: 1.65;
  letter-spacing: 0.3px;
}
.closing-section > p:not(.eyebrow) {
  font-size: 12px;
  color: #a6b498;
  margin-top: 25px;
  line-height: 2.1;
}
.closing-section .button {
  margin-top: 32px;
}
.closing-footnote {
  display: block;
  color: #7c8e70;
  font-size: 10px;
  margin-top: 17px;
}
.site-footer {
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding: 39px 0 27px;
  gap: 20px;
}
.site-footer .brand {
  font-size: 17px;
}
.site-footer > div > p {
  font-size: 10px;
  color: #849577;
  margin-top: 10px;
}
.footer-links {
  display: flex;
  align-items: start;
  justify-content: flex-end;
  gap: 26px;
  padding-top: 9px;
  font-size: 11px;
  color: #b0bea0;
}
.footer-links button {
  font-size: inherit;
  padding: 0;
}
.footer-links a:hover,
.footer-links button:hover {
  color: #eef4e6;
}
/* The ICP filing number, centred under the copyright line and linked to MIIT's filing system, as a site served from
   mainland China must show it at the bottom of its home page (evebox.pro, 2026-10-25). */
.beian {
  grid-column: 1/-1;
  text-align: center;
  font-size: 11px;
  color: #6e8162;
}
.beian a:hover {
  color: #eef4e6;
}
.copyright {
  grid-column: 1/-1;
  border-top: 1px solid #dde7ce0a;
  margin-top: 9px;
  padding-top: 18px;
  color: #6e8162;
  font-size: 9px;
  display: flex;
  justify-content: space-between;
}
.privacy-dialog {
  border: 1px solid #56644a;
  background: #253020;
  color: var(--text);
  border-radius: 13px;
  max-width: 500px;
  width: calc(100% - 40px);
  padding: 35px;
  box-shadow: 0 15px 50px #0005;
}
.privacy-dialog::backdrop {
  background: #0c160c9c;
  backdrop-filter: blur(5px);
}
.privacy-dialog h2 {
  font-family: var(--serif);
  font-size: 29px;
  margin-bottom: 20px;
}
.privacy-dialog > p:not(.eyebrow) {
  font-size: 13px;
  color: #b8c6a8;
  margin-top: 15px;
}
.dialog-close {
  position: absolute;
  right: 10px;
  top: 10px;
}
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translate(-50%, 15px);
  background: #e5eadc;
  color: #2b3b22;
  padding: 13px 20px;
  border-radius: 8px;
  box-shadow: 0 8px 20px #0003;
  z-index: 80;
  font-size: 12px;
  max-width: calc(100vw - 32px);
  width: max-content;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.2s,
    transform 0.2s;
}
.toast.visible {
  opacity: 1;
  transform: translate(-50%, 0);
}
@media (min-width: 1600px) {
  .hero {
    padding-top: 130px;
    padding-bottom: 120px;
    min-height: 830px;
  }
}
@media (max-width: 1150px) {
  .wrap {
    width: calc(100% - 72px);
  }
  .hero {
    gap: 45px;
    padding-top: 90px;
  }
  .hero h1 {
    font-size: 46px;
  }
  .hero-brand > span {
    font-size: 10px;
  }
  .hero-description {
    font-size: 13px;
  }
  .reader-content {
    padding-inline: 24px;
  }
  .reader-content h2 {
    font-size: 22px;
  }
  .steps {
    gap: 30px;
  }
  .source-section {
    gap: 70px;
  }
  .feature-section {
    gap: 45px;
  }
  .mock-app {
    grid-template-columns: 112px 1fr;
  }
  .mock-app aside {
    font-size: 8px;
    padding-inline: 9px;
  }
  .mock-page {
    padding-inline: 19px;
  }
  .mock-page h3 {
    font-size: 21px;
  }
  .scene-layout,
  .faq-section {
    gap: 60px;
  }
  .section h2 {
    font-size: 34px;
  }
  .section {
    padding-block: 90px;
  }
}
@media (max-width: 900px) {
  .wrap {
    width: calc(100% - 48px);
  }
  .site-header nav {
    gap: 19px;
    font-size: 12px;
  }
  .hero {
    gap: 35px;
    min-height: 660px;
    padding-top: 68px;
    padding-bottom: 80px;
  }
  .hero h1 {
    font-size: 37px;
    letter-spacing: -1.7px;
  }
  .hero-description {
    font-size: 12px;
  }
  .hero-brand {
    margin-bottom: 25px;
    gap: 10px;
  }
  .hero-brand > span {
    font-size: 9px;
    letter-spacing: 0;
  }
  .hero-brand img {
    width: 46px;
    height: 46px;
  }
  .hero-actions {
    gap: 9px;
  }
  .hero-actions .button {
    font-size: 12px;
    padding-inline: 17px;
    gap: 17px;
    min-height: 44px;
  }
  .reader-content {
    padding: 23px 22px 19px;
    font-size: 11px;
  }
  .reader-content h2 {
    font-size: 20px;
  }
  .reader-meta {
    font-size: 8px;
  }
  .reader-last {
    display: none;
  }
  .marked-passage {
    font-size: 11px;
  }
  .sample-note textarea {
    font-size: 10px;
  }
  .sample-note label span {
    display: none;
  }
  .reader-bottom {
    padding-inline: 19px;
    font-size: 8px;
  }
  .benefit-strip {
    padding: 28px 0;
    gap: 14px;
  }
  .benefit-strip > span {
    font-size: 10px;
    gap: 8px;
  }
  .benefit-strip svg {
    width: 20px;
    height: 20px;
  }
  .steps {
    gap: 26px;
  }
  .steps h3 {
    font-size: 14px;
  }
  .steps article > p {
    font-size: 11px;
    min-height: 90px;
  }
  .mini-demo {
    font-size: 9px;
    padding-inline: 8px;
    gap: 6px;
  }
  .save-state {
    font-size: 8px;
  }
  .note-demo {
    font-size: 8px;
  }
  .section-heading {
    margin-bottom: 40px;
  }
  .section h2 {
    font-size: 30px;
  }
  .section {
    padding-block: 75px;
  }
  .feature-section {
    gap: 34px;
    grid-template-columns: 0.9fr 1fr;
  }
  .feature-copy > p:not(.eyebrow) {
    font-size: 12px;
  }
  .mock-app {
    grid-template-columns: 88px 1fr;
  }
  .mock-app aside {
    font-size: 7px;
    padding-inline: 7px;
    gap: 14px;
  }
  .mock-profile {
    font-size: 7px;
    gap: 4px;
  }
  .mock-profile img {
    width: 18px;
    height: 18px;
  }
  .mock-nav-active {
    padding: 7px 4px;
  }
  .mock-page {
    padding-inline: 15px;
  }
  .mock-page h3 {
    font-size: 18px;
  }
  .mock-page > p {
    font-size: 9px;
  }
  .mock-page .mock-highlight {
    font-size: 9px;
  }
  .source-section {
    gap: 50px;
  }
  .pdf-sheet {
    width: 240px;
    padding: 25px;
    min-height: 335px;
    margin-left: 15px;
  }
  .pdf-sheet h3 {
    font-size: 15px;
  }
  .quote-slip {
    min-width: 180px;
    padding: 20px;
    right: -8px;
    bottom: 8px;
  }
  .quote-slip > p {
    font-size: 18px;
  }
  .source-illustration {
    min-height: 365px;
  }
  .scene-layout,
  .faq-section {
    gap: 40px;
    grid-template-columns: 0.8fr 1.2fr;
  }
  .scene-panel {
    padding: 23px 25px;
  }
  .scene-panel h3 {
    font-size: 25px;
  }
  .scene-tabs button {
    font-size: 14px;
  }
  .capability-grid {
    font-size: 11px;
    column-gap: 18px;
  }
  .faq-section h2 {
    font-size: 26px;
  }
  .ai-note {
    padding: 22px;
  }
  .closing-section {
    padding-block: 70px 90px;
  }
  .footer-links {
    gap: 17px;
  }
}
@media (max-width: 680px) {
  html {
    scroll-padding-top: 90px;
  }
  .wrap {
    width: calc(100% - 40px);
  }
  .site-header {
    height: 68px;
  }
  .brand {
    font-size: 19px;
  }
  .brand img {
    width: 30px;
    height: 30px;
  }
  .site-header .menu-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
  }
  .menu-button span {
    width: 19px;
    height: 1px;
    background: #d9e3cd;
    transition: transform 0.2s;
  }
  .menu-button[aria-expanded='true'] span:first-child {
    transform: translateY(3.5px) rotate(45deg);
  }
  .menu-button[aria-expanded='true'] span:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
  }
  .site-header nav {
    position: absolute;
    top: 67px;
    left: 0;
    width: 100%;
    background: #222d23;
    padding: 22px;
    display: none;
    align-items: stretch;
    gap: 5px;
    border-bottom: 1px solid #4c5941;
    box-shadow: 0 20px 30px #0003;
  }
  .site-header nav.open {
    display: flex;
    flex-direction: column;
  }
  .site-header nav > a {
    padding: 13px 10px;
    font-size: 14px;
  }
  .site-header nav .button {
    margin-top: 9px;
  }
  .hero {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 63px;
    padding-top: 55px;
    padding-bottom: 70px;
  }
  .hero-brand {
    margin-bottom: 24px;
    gap: 12px;
  }
  .hero-brand img {
    width: 46px;
    height: 46px;
  }
  .hero-brand > span {
    font-size: 11px;
  }
  .hero h1 {
    font-size: clamp(35px, 8.7vw, 50px);
    line-height: 1.6;
    letter-spacing: -1px;
  }
  .hero-description {
    font-size: 12px;
    line-height: 2.05;
    margin-top: 24px;
  }
  .hero-actions {
    margin-top: 28px;
    gap: 12px;
  }
  .hero-actions .button {
    min-height: 47px;
    font-size: 13px;
    padding-inline: 21px;
    gap: 25px;
  }
  .hero-footnote {
    font-size: 10px;
    margin-top: 17px;
  }
  .hero-art {
    margin: 0 10px 22px 17px;
  }
  .reader-content {
    padding: 25px 25px 22px;
    font-size: 12px;
  }
  .reader-content h2 {
    font-size: 23px;
  }
  .reader-meta {
    font-size: 8px;
  }
  .reader-last {
    display: block;
    font-size: 10px;
  }
  .marked-passage {
    font-size: 12px;
  }
  .sample-note textarea {
    font-size: 11px;
  }
  .sample-note label span {
    display: inline;
    font-size: 8px;
  }
  .reader-bottom {
    font-size: 9px;
    padding-inline: 23px;
  }
  .reader-top {
    height: 49px;
  }
  .interaction-hint {
    right: 1px;
    font-size: 9px;
  }
  .benefit-strip {
    grid-template-columns: 1fr 1fr;
    padding: 26px 5px;
    row-gap: 26px;
    column-gap: 10px;
  }
  .benefit-strip > span {
    font-size: 10px;
    justify-content: flex-start;
    gap: 9px;
  }
  .benefit-strip svg {
    width: 19px;
    height: 19px;
  }
  .section {
    padding-block: 65px;
  }
  .section h2 {
    font-size: 29px;
    letter-spacing: -0.5px;
  }
  .eyebrow {
    font-size: 9px;
    letter-spacing: 1.2px;
    margin-bottom: 15px;
  }
  .section-heading {
    margin-bottom: 40px;
  }
  .section-heading > p:last-child:not(.eyebrow) {
    font-size: 11px;
    line-height: 2;
  }
  .steps {
    grid-template-columns: 1fr;
    gap: 37px;
  }
  .step-number {
    font-size: 31px;
    margin-bottom: 16px;
  }
  .steps article {
    position: relative;
  }
  .steps h3 {
    font-size: 16px;
    margin-bottom: 15px;
  }
  .steps article > p {
    font-size: 12px;
    min-height: auto;
    max-width: 450px;
  }
  .mini-demo {
    margin-top: 19px;
    min-height: 48px;
    padding: 12px 15px;
    font-size: 11px;
  }
  .save-state {
    font-size: 10px;
  }
  .note-demo {
    font-size: 10px;
  }
  .steps article + article {
    border-top: 1px solid #d9e5c90b;
    padding-top: 31px;
  }
  .feature-section,
  .source-section {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 47px;
  }
  .feature-copy > p:not(.eyebrow) {
    font-size: 12px;
    margin-top: 22px;
    max-width: 450px;
  }
  .quiet-list {
    font-size: 11px;
    gap: 13px;
    margin: 22px 0 25px;
  }
  .library-illustration {
    margin: 0 4px 14px;
  }
  .mock-app {
    grid-template-columns: 110px 1fr;
  }
  .mock-app aside {
    font-size: 8px;
    padding: 19px 10px;
  }
  .mock-profile {
    font-size: 8px;
  }
  .mock-profile img {
    width: 22px;
    height: 22px;
  }
  .mock-nav-active {
    padding: 8px 5px;
  }
  .mock-page {
    padding: 23px 20px 19px;
  }
  .mock-page h3 {
    font-size: 22px;
  }
  .mock-page > p {
    font-size: 10px;
  }
  .mock-page .mock-highlight {
    font-size: 10px;
  }
  .source-section .feature-copy {
    order: -1;
  }
  .source-illustration {
    width: min(340px, 100%);
    align-self: center;
    min-height: 365px;
    margin-top: 5px;
  }
  .pdf-sheet {
    width: 250px;
    min-height: 350px;
    margin-left: 15px;
  }
  .pdf-sheet h3 {
    font-size: 17px;
  }
  .quote-slip {
    right: 0;
    bottom: 10px;
  }
  .scene-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .scene-tabs {
    gap: 0;
  }
  .scene-tabs button {
    font-size: 14px;
    padding: 18px 3px;
  }
  .scene-panel {
    padding: 24px 23px;
  }
  .scene-panel h3 {
    font-size: 26px;
  }
  .scene-panel > p:not(.scene-label) {
    font-size: 12px;
  }
  .scene-label {
    font-size: 9px;
  }
  .capability-grid {
    grid-template-columns: repeat(2, 1fr);
    font-size: 11px;
    gap: 21px 15px;
  }
  .ai-note {
    padding: 20px 17px;
    gap: 13px;
    align-items: start;
    margin-top: 37px;
  }
  .ai-note > svg {
    width: 23px;
    height: 23px;
  }
  .ai-note h3 {
    font-size: 13px;
  }
  .ai-note p {
    font-size: 10px;
  }
  .subtle-badge {
    display: none;
  }
  .capability-note {
    font-size: 9px;
    line-height: 1.9;
    margin-top: 15px;
  }
  .faq-section {
    display: block;
  }
  .faq-section .section-heading {
    margin-bottom: 32px;
  }
  .faq-list summary {
    font-size: 12px;
    padding: 22px 0;
  }
  .faq-list details > p {
    font-size: 11px;
    padding-bottom: 22px;
  }
  .closing-section {
    padding: 62px 0 73px;
  }
  .closing-section .eyebrow {
    font-size: 8px;
  }
  .closing-section > img {
    width: 55px;
    height: 55px;
    margin-top: 29px;
  }
  .closing-section h2 {
    font-size: 34px;
    line-height: 1.7;
  }
  .closing-section > p:not(.eyebrow) {
    font-size: 11px;
  }
  .closing-section .button {
    font-size: 13px;
  }
  .site-footer {
    display: flex;
    flex-direction: column;
    gap: 22px;
    padding-top: 31px;
  }
  .footer-links {
    justify-content: flex-start;
    gap: 22px;
    font-size: 10px;
    padding-top: 0;
  }
  .copyright {
    font-size: 8px;
    margin: 0;
    gap: 15px;
  }
  .privacy-dialog {
    padding: 29px 23px;
  }
  .privacy-dialog h2 {
    font-size: 24px;
  }
  .privacy-dialog > p:not(.eyebrow) {
    font-size: 12px;
  }
  .underline-word:after {
    height: 5px;
  }
  .desktop-break {
    display: none;
  }
}
@media (max-width: 360px) {
  .wrap {
    width: calc(100% - 32px);
  }
  .hero h1 {
    font-size: 32px;
  }
  .hero-art {
    margin-inline: 13px 4px;
  }
  .reader-content {
    padding-inline: 21px;
  }
  .reader-content h2 {
    font-size: 21px;
  }
  .mock-app {
    grid-template-columns: 90px 1fr;
  }
  .mock-page {
    padding-inline: 15px;
  }
  .benefit-strip > span {
    font-size: 9px;
  }
  .footer-links {
    gap: 18px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *:before,
  *:after {
    transition: none !important;
    animation: none !important;
  }
  .button:hover {
    transform: none;
  }
}