@charset "UTF-8";
.language-picker { display: flex; border: 1px solid var(--line); border-radius: 999px; padding: 3px; gap: 2px; }
.language-picker button { border: 0; border-radius: 999px; padding: 6px 9px; background: transparent; color: var(--muted); font-size: 11px; white-space: nowrap; }
.language-picker button[aria-pressed="true"] { background: var(--ink); color: white; }
html[lang="en"] .hero h1 { font-size: clamp(42px, 4.4vw, 63px); letter-spacing: -2px; }
html[lang="en"] .section h2 { font-size: 38px; }
html[lang="en"] .feature h3 { line-height: 1.45; }
html[lang="en"] .feature > p { min-height: 100px; }
html[lang="en"] .note-top { max-width: 200px; }
html[lang="en"] .task label { font-size: 11px; }
@media (max-width: 780px) { .nav nav { gap: 12px !important; } html[lang="en"] .section h2 { font-size: 34px; } }
@media (max-width: 480px) { .nav { height: auto !important; padding: 17px 0; gap: 15px; flex-wrap: wrap; } .nav nav { width: 100%; justify-content: space-between; } html[lang="en"] .hero h1 { font-size: 46px; } html[lang="en"] .section h2 { font-size: 30px; } html[lang="en"] .hero-actions { gap: 8px; } html[lang="en"] .button { gap: 9px; padding: 13px 12px; } html[lang="en"] .note-bottom { font-size: 10px; left: 0; } html[lang="en"] .note-top { font-size: 10px; } }
:root {
  color-scheme:light;
  --paper:#f7f7f2;
  --ink:#151515;
  --muted:#62635d;
  --line:#d5d6cf;
  --white:#fff;
  --radius:18px
}

* {
  box-sizing:border-box
}

html {
  scroll-behavior:smooth;
  scroll-padding-top:36px
}

body {
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased
}

a {
  color:inherit;
  text-decoration:none
}

button {
  font:inherit;
  cursor:pointer
}

a,button {
  -webkit-tap-highlight-color:transparent
}

button:disabled {
  cursor:default
}

button:focus-visible,a:focus-visible,summary:focus-visible {
  outline:3px solid #73756a;
  outline-offset:5px
}

::selection {
  background:#181818;
  color:white
}

[hidden] {
  display:none!important
}

.wrap {
  width:min(1180px,calc(100% - 96px));
  margin-inline:auto
}

.skip-link {
  position:absolute;
  left:16px;
  top:-80px;
  z-index:10;
  background:white;
  padding:14px
}

.skip-link:focus {
  top:16px
}

.nav {
  height:108px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-bottom:1px solid var(--line)
}

.brand {
  display:flex;
  align-items:center;
  gap:10px;
  font-size:24px;
  font-weight:750;
  letter-spacing:-1px
}

.brand img {
  border-radius:9px
}

.brand-dot {
  font-size:11px;
  vertical-align:super;
  margin-left:3px
}

.nav nav {
  display:flex;
  align-items:center;
  gap:36px;
  font-size:14px
}

.nav nav>a:hover {
  text-decoration:underline;
  text-underline-offset:5px
}

.nav-source {
  display:flex;
  gap:28px;
  border:1px solid var(--ink);
  padding:11px 18px;
  border-radius:30px
}

.hero {
  min-height:760px;
  display:grid;
  grid-template-columns:1.1fr 1fr;
  align-items:center;
  gap:30px;
  padding-top:45px;
  padding-bottom:55px
}

.eyebrow {
  font-family:Consolas,"Courier New",monospace;
  letter-spacing:1.8px;
  font-size:11px;
  line-height:1.6;
  font-weight:600;
  margin:0 0 30px;
  display:flex;
  align-items:center;
  gap:9px
}

.signal {
  width:7px;
  height:7px;
  display:inline-block;
  background:#151515;
  border-radius:50%
}

.hero h1 {
  font-size:clamp(52px,5.2vw,74px);
  line-height:1.36;
  letter-spacing:-3px;
  font-weight:800;
  margin:0 0 29px
}

.plain-word {
  position:relative;
  display:inline-block
}

.plain-word svg {
  position:absolute;
  width:100%;
  height:18px;
  left:0;
  bottom:-4px;
  stroke:var(--ink);
  stroke-width:2;
  fill:none
}

.hero-description {
  font-size:16px;
  color:var(--muted);
  line-height:1.95;
  margin:0
}

.hero-actions {
  display:flex;
  gap:12px;
  margin-top:35px;
  flex-wrap:wrap
}

.button {
  display:inline-flex;
  align-items:center;
  gap:32px;
  padding:17px 22px;
  border-radius:10px;
  font-size:14px;
  font-weight:600;
  transition:transform .18s,background .18s
}

.button:hover {
  transform:translateY(-3px)
}

.button span {
  font-size:18px
}

.solid {
  background:var(--ink);
  color:white;
  border:1px solid var(--ink)
}

.outline {
  border:1px solid var(--line)
}

.outline:hover {
  background:#eaeae4
}

.platforms {
  display:flex;
  align-items:center;
  gap:12px;
  color:var(--muted);
  font-size:11px;
  margin-top:23px
}

.platforms>span {
  display:flex;
  align-items:center;
  gap:5px
}

.platforms svg {
  width:17px;
  height:17px;
  stroke:currentColor;
  stroke-width:1.6;
  fill:none
}

.divider {
  height:12px;
  width:1px;
  background:var(--line)
}

.hero-visual {
  position:relative;
  padding:28px 0 0;
  display:flex;
  flex-direction:column;
  align-items:center;
  scroll-margin-top:20px
}

.hero-visual:before {
  content:"";
  position:absolute;
  inset:70px 0 30px;
  background-image:radial-gradient(#d1d2c9 .8px,transparent .8px);
  background-size:18px 18px;
  z-index:-1;
  mask-image:radial-gradient(ellipse,#000 40%,transparent 70%)
}

.phone {
  width:310px;
  height:572px;
  padding:14px 15px 0;
  border-radius:43px;
  background:#080808;
  color:#fff;
  border:6px solid #282828;
  box-shadow:0 28px 45px -25px #0008,0 0 0 1px #92928a;
  transform:rotate(-3deg);
  display:flex;
  flex-direction:column
}

.phone-status {
  height:28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:10px;
  font-weight:600;
  padding:0 5px;
  position:relative
}

.camera {
  width:72px;
  height:18px;
  border-radius:30px;
  background:#222;
  position:absolute;
  left:50%;
  transform:translateX(-50%)
}

.phone-heading {
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 2px 14px;
  font-size:19px;
  font-weight:650
}

.phone-heading button {
  border:0;
  color:#c1c1c1;
  background:none;
  font-size:24px;
  padding:3px 8px;
  line-height:1
}

.phone-content {
  flex:1;
  overflow-y:auto;
  scrollbar-width:thin;
  scrollbar-color:#454545 #111
}

.phone-date {
  font-size:11px;
  color:#aaa;
  margin:5px 0 29px
}

.progress-copy {
  display:flex;
  justify-content:space-between;
  font-size:12px;
  align-items:center
}

.progress-copy span:last-child {
  font-size:10px;
  color:#999
}

.progress-track {
  margin-top:12px;
  height:3px;
  background:#333;
  border-radius:20px;
  overflow:hidden
}

#progress-fill {
  height:100%;
  background:white;
  width:0;
  transition:width .25s
}

.task-group {
  font-size:11px;
  color:#aaa;
  margin:25px 0 12px
}

.task {
  display:flex;
  align-items:center;
  gap:11px;
  border:1px solid #393939;
  border-radius:13px;
  padding:13px 11px;
  margin-bottom:9px;
  min-height:63px
}

.task input {
  appearance:none;
  flex-shrink:0;
  width:18px;
  height:18px;
  border:1px solid #888;
  border-radius:4px;
  cursor:pointer;
  margin:0;
  display:grid;
  place-items:center
}

.task input:checked {
  background:white;
  border-color:white
}

.task input:checked:after {
  content:"✓";
  color:#080808;
  font-size:13px;
  font-weight:bold
}

.task input:focus-visible {
  outline:2px solid #fff;
  outline-offset:3px
}

.task label {
  font-size:12px;
  line-height:1.7;
  cursor:pointer;
  flex:1
}

.task small {
  display:block;
  font-size:10px;
  color:#999
}

.task:has(input:checked) label {
  text-decoration:line-through;
  color:#8c8c8c
}

.phone-hint {
  color:#aaa;
  font-size:10px;
  line-height:1.6;
  margin:15px 0
}

.phone-tabs {
  display:flex;
  gap:10px;
  border-top:1px solid #333;
  padding-top:10px;
  margin-top:8px
}

.phone-tabs button {
  flex:1;
  display:flex;
  flex-direction:column;
  gap:3px;
  align-items:center;
  border:0;
  background:none;
  color:#999;
  font-size:10px;
  padding:3px
}

.phone-tabs button span {
  font-size:21px;
  line-height:1.2
}

.phone-tabs button[aria-selected="true"] {
  color:white
}

.home-bar {
  margin:13px auto 8px;
  width:90px;
  height:4px;
  background:#ddd;
  border-radius:20px
}

.visual-note {
  position:absolute;
  font-size:12px;
  color:#56574e
}

.note-top {
  right:-8px;
  top:5px;
  transform:rotate(8deg)
}

.note-top svg {
  display:block;
  fill:none;
  stroke:currentColor;
  stroke-width:1.5;
  width:70px;
  height:44px;
  margin:6px 0 0 60px
}

.note-bottom {
  bottom:58px;
  left:-28px;
  transform:rotate(-7deg);
  background:#fff;
  padding:14px 16px;
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:0 8px 22px #00000008;
  font-size:12px
}

.note-bottom span {
  display:inline-grid;
  place-items:center;
  border:1px solid #999;
  border-radius:50%;
  width:19px;
  height:19px;
  margin-right:5px
}

.demo-disclaimer {
  font-size:10px;
  color:var(--muted);
  text-align:center;
  margin:24px 0 0
}

.chat-prompt {
  background:#222;
  border:1px solid #383838;
  border-radius:15px 15px 3px 15px;
  padding:16px;
  font-size:12px;
  line-height:1.8;
  margin-bottom:25px
}

.ai-label {
  font-size:11px;
  color:#ccc;
  margin-bottom:15px;
  display:flex;
  align-items:center;
  gap:8px
}

.ai-mark {
  font-size:18px
}

.draft {
  border:1px solid #595959;
  border-radius:15px;
  padding:16px
}

.draft-label {
  font-size:9px;
  letter-spacing:1px;
  color:#aaa
}

.draft h3 {
  font-size:16px;
  line-height:1.5;
  margin:10px 0
}

.draft>p {
  font-size:10px;
  color:#bbb;
  margin:0 0 16px
}

.draft-add {
  width:100%;
  display:flex;
  justify-content:space-between;
  border:0;
  border-radius:8px;
  background:white;
  color:#111;
  padding:10px 12px;
  font-size:11px;
  font-weight:650
}

.draft-add:disabled {
  color:#bbb;
  background:#333
}

.sample-switch {
  display:flex;
  gap:7px
}

.sample-switch button {
  font-size:10px;
  background:none;
  color:#aaa;
  border:1px solid #444;
  border-radius:16px;
  padding:6px 13px
}

.sample-switch button[aria-pressed="true"] {
  background:#eee;
  color:#111;
  border-color:#eee
}

.principles {
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line)
}

.principles>.wrap {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:92px;
  font-size:13px;
  font-weight:550;
  flex-wrap:wrap
}

.principles span:nth-child(even) {
  font-size:23px;
  color:#777
}

.section {
  padding-top:108px;
  padding-bottom:108px
}

.section-heading {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px 70px;
  align-items:end;
  margin-bottom:50px
}

.section-heading .eyebrow {
  grid-column:1/-1;
  margin-bottom:10px
}

.section h2 {
  font-size:42px;
  line-height:1.4;
  letter-spacing:-1.5px;
  margin:0;
  font-weight:750
}

.section-heading>p:last-child {
  font-size:14px;
  line-height:1.9;
  color:var(--muted);
  margin:0 0 6px
}

.feature-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px
}

.feature {
  border-top:1px solid var(--ink);
  padding-top:17px
}

.feature-number {
  font-family:Consolas,monospace;
  font-size:11px;
  color:#777
}

.feature-art {
  height:177px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  font-size:12px;
  background:#edede7;
  border-radius:14px;
  margin:18px 0 28px;
  overflow:hidden
}

.manual-art {
  gap:7px;
  align-items:flex-start;
  padding-left:23%
}

.manual-art>span {
  background:white;
  padding:9px 13px;
  width:165px;
  border:1px solid #d4d4ca;
  border-radius:8px
}

.manual-art>span:first-child {
  text-decoration:line-through;
  color:#8a8a80;
  transform:rotate(-4deg)
}

.manual-art>span:last-child {
  transform:rotate(4deg)
}

.ai-art {
  gap:14px
}

.ai-art>span:first-child {
  border:1px solid #c4c4ba;
  border-radius:10px;
  padding:10px;
  transform:rotate(-3deg);
  font-size:11px
}

.art-arrow {
  font-size:19px
}

.ai-art b {
  font-weight:normal;
  font-size:18px;
  padding:0 12px
}

.reminder-art {
  gap:8px
}

.bell {
  font-size:40px;
  line-height:1;
  transform:rotate(180deg)
}

.reminder-art small {
  font-size:10px;
  color:#777
}

.feature h3 {
  font-size:19px;
  letter-spacing:-.5px;
  margin:0 0 12px
}

.feature>p {
  font-size:13px;
  line-height:1.95;
  color:var(--muted);
  min-height:76px;
  margin:0 0 26px
}

.feature-tag {
  font-family:Consolas,"Microsoft YaHei",monospace;
  letter-spacing:1px;
  font-size:10px;
  color:#707166
}

.ownership {
  background:#151515;
  color:white
}

.ownership-inner {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:30px 70px
}

.ownership .eyebrow {
  grid-column:1/-1;
  color:#a8a9a0;
  margin-bottom:12px
}

.ownership h2 {
  font-size:57px;
  line-height:1.4
}

.ownership-details {
  display:flex;
  flex-direction:column;
  gap:26px
}

.ownership-details article {
  position:relative;
  padding-left:27px;
  border-bottom:1px solid #393939;
  padding-bottom:22px
}

.ownership-details article:last-child {
  border-bottom:none;
  padding-bottom:0
}

.ownership-details article>span {
  position:absolute;
  left:0;
  top:0;
  font-size:20px;
  color:#999
}

.ownership-details h3 {
  font-size:17px;
  margin:0 0 9px
}

.ownership-details p {
  font-size:13px;
  line-height:1.9;
  color:#aaa;
  margin:0
}

.build-panel {
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#eeeeea;
  overflow:hidden
}

.code-heading,.code-foot {
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:19px 25px;
  font-size:11px;
  color:#696a60;
  border-bottom:1px solid var(--line)
}

.code-heading>span {
  letter-spacing:1px
}

.code-heading button {
  border:0;
  background:none;
  color:#333;
  font-size:11px;
  padding:5px
}

.code-heading button:hover {
  text-decoration:underline
}

.build-panel pre {
  margin:0;
  padding:28px 25px;
  font-size:14px;
  line-height:2.1;
  overflow-x:auto
}

.build-panel code {
  font-family:Consolas,"Courier New",monospace
}

.code-foot {
  border-top:1px solid var(--line);
  border-bottom:0;
  font-size:11px;
  gap:10px;
  overflow-wrap:anywhere
}

.copy-status {
  padding:0 25px;
  font-size:12px;
  margin:0
}

.copy-status:not(:empty) {
  padding-bottom:15px
}

.build-note {
  font-size:12px;
  color:#717266;
  line-height:1.8;
  margin:18px 0 0
}

.faq {
  border-top:1px solid var(--line);
  display:grid;
  grid-template-columns:.8fr 1.2fr;
  gap:70px
}

.faq-heading .eyebrow {
  font-size:10px
}

.faq details {
  border-bottom:1px solid var(--line)
}

.faq summary {
  padding:21px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  list-style:none;
  cursor:pointer;
  font-size:15px;
  font-weight:600
}

.faq summary::-webkit-details-marker {
  display:none
}

.faq summary span {
  font-weight:400;
  font-size:21px
}

.faq details[open] summary span {
  transform:rotate(45deg)
}

.faq details p {
  margin:0 0 22px;
  font-size:13px;
  line-height:1.9;
  color:var(--muted)
}

.closing {
  border-top:1px solid var(--line);
  padding:65px 0 78px
}

.closing>p {
  font-size:12px;
  color:var(--muted);
  margin:0 0 20px
}

.closing>a {
  display:block;
  position:relative;
  font-size:58px;
  line-height:1.4;
  font-weight:750;
  letter-spacing:-2px
}

.closing>a>span {
  position:absolute;
  right:20px;
  top:0;
  font-size:110px;
  font-weight:300
}

.closing a:hover span {
  transform:translate(5px,-5px)
}

.footer {
  border-top:1px solid var(--line);
  padding-top:37px;
  padding-bottom:29px
}

.footer-wordmark {
  font-size:clamp(75px,17vw,217px);
  line-height:1;
  letter-spacing:-12px;
  font-weight:800;
  margin-left:-8px
}

.footer-row {
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:11px;
  color:#74756c;
  margin-top:32px;
  gap:20px
}

.footer-row a:hover {
  text-decoration:underline
}

@media(min-width:1500px) {
  .hero h1 {
    font-size:78px
  }
}

@media(max-width:1050px) {
  .wrap {
    width:calc(100% - 64px)
  }
  .hero {
    gap:10px
  }
  .hero h1 {
    font-size:58px
  }
  .note-top {
    right:-12px;
    top:-2px
  }
  .note-bottom {
    left:-5px
  }
  .button {
    gap:18px;
    padding:15px 17px
  }
  .feature-grid {
    gap:20px
  }
  .manual-art {
    padding-left:14%
  }
  .section-heading {
    gap:10px 45px
  }
  .ownership-inner,.faq {
    gap:30px 45px
  }
}

@media(max-width:780px) {
  .wrap {
    width:calc(100% - 40px)
  }
  .nav {
    height:82px
  }
  .nav nav {
    gap:18px
  }
  .brand {
    font-size:22px
  }
  .nav-source {
    padding:8px 12px;
    gap:10px
  }
  .hero {
    grid-template-columns:1fr;
    padding-top:50px;
    gap:50px;
    padding-bottom:44px
  }
  .hero h1 {
    font-size:64px
  }
  .hero-copy {
    max-width:540px
  }
  .hero-visual {
    margin-inline:auto;
    width:min(100%,450px)
  }
  .note-top {
    right:0
  }
  .note-bottom {
    left:0
  }
  .principles>.wrap {
    justify-content:center;
    column-gap:22px;
    row-gap:12px;
    padding:20px 0;
    font-size:11px;
    min-height:82px
  }
  .principles span:nth-child(4) {
    display:none
  }
  .section {
    padding-top:70px;
    padding-bottom:70px
  }
  .section-heading {
    grid-template-columns:1fr;
    gap:18px
  }
  .section h2 {
    font-size:36px
  }
  .section-heading .eyebrow {
    margin-bottom:0
  }
  .feature-grid {
    grid-template-columns:1fr;
    gap:35px
  }
  .feature {
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:0 22px
  }
  .feature-number {
    grid-column:1/-1
  }
  .feature-art {
    grid-row:2/5;
    margin:15px 0 0;
    height:176px
  }
  .feature h3 {
    font-size:17px;
    margin-top:23px
  }
  .feature>p {
    min-height:0;
    margin-bottom:14px
  }
  .feature-tag {
    font-size:9px
  }
  .ownership-inner {
    grid-template-columns:1fr;
    gap:25px
  }
  .ownership h2 {
    font-size:45px
  }
  .ownership-details {
    margin-top:8px
  }
  .faq {
    grid-template-columns:1fr;
    gap:30px
  }
  .closing>a {
    font-size:43px
  }
  .closing>a>span {
    font-size:85px;
    right:0
  }
  .footer-wordmark {
    letter-spacing:-6px;
    font-size:19vw
  }
  .footer-row {
    flex-wrap:wrap;
    gap:14px
  }
  .footer-row>span:nth-child(2) {
    display:none
  }
}

@media(max-width:420px) {
  .nav nav {
    gap:13px;
    font-size:12px
  }
  .brand {
    font-size:20px;
    gap:7px
  }
  .brand img {
    width:27px;
    height:27px
  }
  .nav-source {
    gap:7px;
    padding:8px 10px
  }
  .hero h1 {
    font-size:53px;
    letter-spacing:-2px
  }
  .hero-description {
    font-size:14px
  }
  .hero-actions {
    gap:9px
  }
  .button {
    font-size:12px;
    gap:14px;
    padding:14px
  }
  .eyebrow {
    font-size:9px;
    letter-spacing:1.2px
  }
  .phone {
    width:290px;
    height:566px
  }
  .note-top {
    top:-7px;
    font-size:10px
  }
  .note-bottom {
    left:-4px;
    font-size:10px;
    bottom:53px;
    padding:11px
  }
  .feature {
    display:block
  }
  .feature-art {
    height:150px;
    margin-bottom:23px
  }
  .manual-art {
    padding-left:27%
  }
  .feature>p {
    font-size:13px
  }
  .feature h3 {
    font-size:19px
  }
  .section-heading {
    margin-bottom:35px
  }
  .build-panel pre {
    font-size:11px;
    padding:23px 16px
  }
  .code-heading,.code-foot {
    padding:16px;
    font-size:9px
  }
  .build-note {
    font-size:11px
  }
  .section h2 {
    font-size:33px
  }
  .faq summary {
    font-size:14px
  }
  .closing>a {
    font-size:37px
  }
  .closing>a>span {
    font-size:67px
  }
}

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

@media(max-width:350px) {
  .phone {
    transform:none;
    width:276px
  }
  .note-bottom {
    left:0;
    font-size:9px
  }
  .hero h1 {
    font-size:49px
  }
  .hero-description {
    font-size:13px
  }
  .hero-actions {
    gap:8px
  }
  .button {
    padding:13px 10px;
    gap:8px
  }
}