@charset "UTF-8";
:root {
  color-scheme: light;
  --bg: #ffffff;
  --panel: #f7f7f7;
  --line: #e5e5e5;
  --text: #171717;
  --muted: #666666;
  --accent: #111111;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 95px;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}
button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
}
a,
button,
summary {
  touch-action: manipulation;
}
a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 5px;
}
a:hover {
  color: var(--accent);
}
svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
.symbols {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}
.container {
  width: min(1240px, calc(100% - 96px));
  margin-inline: auto;
}
.skip-link {
  position: fixed;
  left: 20px;
  top: -100px;
  background: var(--accent);
  color: var(--bg);
  padding: 12px;
  z-index: 100;
}
.skip-link:focus {
  top: 10px;
}
.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap {
  height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 600;
  white-space: nowrap;
  letter-spacing: -0.5px;
}
.brand b {
  font-weight: 400;
  color: var(--muted);
}
.brand-mark {
  background: var(--accent);
  color: var(--bg);
  font: 800 23px/36px var(--mono);
  height: 36px;
  width: 36px;
  text-align: center;
  border-radius: 2px;
  letter-spacing: -5px;
  padding-right: 4px;
}
.brand-mark span {
  font-size: 18px;
}
.nav-wrap nav {
  display: flex;
  gap: 30px;
  font-size: 13px;
  color: #404040;
}
.nav-github {
  display: flex;
  align-items: center;
  gap: 5px;
}
.nav-github svg {
  width: 14px;
  height: 14px;
}
.nav-download {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 8px 15px;
  border: 1px solid #a5a5a5;
  font-size: 12px;
  border-radius: 2px;
}
.nav-download svg {
  width: 15px;
  height: 15px;
}
.hero {
  padding-top: 26px;
  position: relative;
}
.hero-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font: 10px/1.5 var(--mono);
  letter-spacing: 1.2px;
}
.hero-topline > span:first-child {
  display: flex;
  gap: 8px;
  align-items: center;
}
.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  box-shadow: 0 0 12px #64646433;
}
.hero-build {
  color: #595959;
}
.hero-build > span {
  color: var(--accent);
  margin-left: 8px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 32px;
  align-items: center;
  padding: 71px 0 74px;
}
.eyebrow {
  font: 10px/1.6 var(--mono);
  letter-spacing: 1.7px;
  color: var(--accent);
  margin: 0 0 23px;
}
.hero h1 {
  font-size: clamp(54px, 5.6vw, 80px);
  line-height: 1.18;
  font-weight: 650;
  letter-spacing: -4px;
  margin: 0 0 28px;
}
.accent-word {
  color: var(--accent);
  position: relative;
}
.title-cursor {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 0.8em;
  margin-left: 5px;
}
.hero-description {
  color: #4b4b4b;
  font-size: 16px;
  line-height: 1.95;
  margin: 0 0 31px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 26px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  font-size: 13px;
  font-weight: 600;
  padding: 14px 22px;
  border-radius: 2px;
  transition:
    background 0.18s,
    transform 0.18s;
  border: 1px solid transparent;
}
.button:hover {
  transform: translateY(-2px);
}
.button-primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.button-primary:hover {
  background: #333333;
  color: var(--bg);
}
.button-primary svg {
  width: 17px;
  height: 17px;
  stroke-width: 1.8;
}
.text-link {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  font-size: 12px;
}
.text-link svg {
  width: 17px;
  height: 17px;
}
.hero-meta {
  display: flex;
  gap: 14px;
  align-items: center;
  font: 9px/1.6 var(--mono);
  color: #797979;
  letter-spacing: 0.6px;
  margin-top: 24px;
}
.meta-divider {
  color: #b4b4b4;
}
.identity-system {
  position: relative;
  height: 440px;
  isolation: isolate;
}
.system-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(#a8a8a812 1px, transparent 1px),
    linear-gradient(90deg, #a8a8a812 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse at center, #ffffff 20%, transparent 72%);
}
.identity-system:before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse, #5d5d5d0b, transparent 70%);
  z-index: -1;
}
.orbital-background {
  position: absolute;
  inset: 0;
  overflow: clip;
  z-index: -1;
}
.orbit {
  position: absolute;
  width: 330px;
  height: 330px;
  border: 1px solid #9d9d9d26;
  border-radius: 50%;
  left: 100px;
  top: 35px;
  transform: rotateX(48deg) rotate(-35deg);
  z-index: -1;
}
.orbit-two {
  width: 430px;
  height: 430px;
  left: 50px;
  top: -10px;
  border-style: dashed;
  opacity: 0.5;
}
.coordinate {
  position: absolute;
  color: #848484;
  font: 8px/1.5 var(--mono);
  letter-spacing: 1.2px;
}
.coordinate-top {
  right: 7px;
  top: 5px;
}
.coordinate-bottom {
  left: 8px;
  bottom: 8px;
}
.profile-card {
  width: 320px;
  position: absolute;
  border: 1px solid #b4b4b4;
  background: linear-gradient(120deg, #d4d4d4f0, #ecececfa);
  padding: 21px 23px;
  box-shadow: 0 25px 60px #ffffff88;
  border-radius: 5px;
  transition: transform 0.5s;
}
.profile-back {
  top: 25px;
  right: 4px;
  transform: rotate(10deg);
  opacity: 0.55;
  border-color: #a7a7a7;
  background: linear-gradient(120deg, #d6d6d6, #e8e8e8);
}
.profile-middle {
  top: 100px;
  right: 49px;
  transform: rotate(2deg);
  opacity: 0.8;
  background: linear-gradient(120deg, #d0d0d0, #e7e7e7);
  border-color: #9e9e9e;
}
.profile-front {
  top: 192px;
  right: 90px;
  transform: rotate(-7deg);
  background: linear-gradient(120deg, #d2d2d2, #eaeaea);
}
.identity-system:hover .profile-front {
  transform: translate(-5px, 5px) rotate(-9deg);
}
.identity-system:hover .profile-back {
  transform: translate(5px, -5px) rotate(12deg);
}
.card-status {
  display: flex;
  align-items: center;
  gap: 7px;
  font: 8px/1.5 var(--mono);
  letter-spacing: 1.3px;
  color: #4b4b4b;
}
.card-status > span:last-child {
  margin-left: auto;
  color: #8a8a8a;
}
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}
.lime {
  background: var(--accent);
}
.purple {
  background: #313131;
}
.cyan {
  background: #4e4e4e;
}
.profile-card-title {
  font-size: 25px;
  font-weight: 500;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 15px 0 20px;
  letter-spacing: 1px;
}
.profile-card-title > span {
  font-size: 19px;
  font-weight: 300;
  color: #686868;
}
.card-foot {
  border-top: 1px solid #a0a0a033;
  display: flex;
  justify-content: space-between;
  padding-top: 12px;
  font: 8px/1.4 var(--mono);
  color: #515151;
}
.card-foot .status-dot {
  width: 4px;
  height: 4px;
  margin-right: 4px;
}
.data-blocks {
  display: flex;
  gap: 5px;
  margin: 0 0 16px;
}
.data-blocks i {
  display: block;
  background: #00000012;
  width: 37px;
  height: 12px;
}
.data-blocks i:nth-child(3) {
  width: 57px;
}
.profile-tabs {
  display: flex;
  gap: 6px;
  align-items: center;
  margin: 0 0 18px;
  font-size: 9px;
  color: #323232;
}
.profile-tabs span {
  padding: 4px 9px;
  background: #80808024;
  border: 1px solid #84848430;
  border-radius: 2px;
}
.profile-tabs b {
  margin-left: auto;
  font-size: 14px;
  font-weight: 400;
  color: #696969;
}
.system-label {
  position: absolute;
  bottom: 3px;
  right: 0;
  font: 8px/1.8 var(--mono);
  letter-spacing: 1.3px;
  color: #8c8c8c;
}
.system-label b {
  font-weight: 400;
  color: #515151;
}
.label-cross {
  position: absolute;
  top: 4px;
  left: -23px;
  color: var(--accent);
  font-size: 16px;
}
.hero-bottom {
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 0;
  color: #6d6d6d;
  font-size: 11px;
}
.hero-bottom > a {
  font: 9px var(--mono);
  letter-spacing: 1px;
}
.hero-bottom > a span {
  color: var(--accent);
  font-size: 16px;
  margin-left: 25px;
}
.section {
  padding-top: 110px;
  padding-bottom: 100px;
  scroll-margin-top: 10px;
}
.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 38px;
}
.section-heading .eyebrow {
  margin-bottom: 15px;
}
h2 {
  font-size: 36px;
  font-weight: 550;
  line-height: 1.45;
  letter-spacing: -1.3px;
  margin: 0;
}
.section-heading > p {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 5px;
  line-height: 1.9;
}
.mobile-break {
  display: none;
}
.product-stage {
  border: 1px solid #c0c0c0;
  background: linear-gradient(120deg, #e2e2e2, #ececec);
  border-radius: 5px;
  overflow: hidden;
}
.stage-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--line);
  gap: 10px;
}
.stage-bar > span {
  display: flex;
  align-items: center;
  gap: 8px;
  font: 9px/1.6 var(--mono);
  color: #5d5d5d;
  letter-spacing: 1px;
}
.platform-tabs {
  display: flex;
  gap: 3px;
}
.platform-tabs button {
  border: 1px solid transparent;
  border-radius: 2px;
  background: transparent;
  color: #5f5f5f;
  font: 10px var(--mono);
  padding: 7px 13px;
}
.platform-tabs button[aria-selected="true"] {
  border-color: #a8a8a8;
  background: #88888817;
  color: var(--accent);
}
.platform-tabs button:hover {
  color: var(--accent);
}
.screenshot-panel {
  padding: 44px 60px;
  background: radial-gradient(ellipse at center, #5858580c, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 480px;
}
.screenshot-panel img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 980px;
  max-height: 680px;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 14px 44px #ffffff55;
}
.screenshot-panel img.android {
  width: auto;
  max-width: 100%;
  height: 540px;
}
.capture-views {display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;padding:14px 18px;border-top:1px solid #e5e5e5;font-size:12px;color:#737373;}
.capture-views[hidden] {display:none;}
.capture-views button {border:1px solid #d8d8d8;border-radius:7px;background:#fff;color:#171717;padding:7px 14px;cursor:pointer;font:inherit;}
.capture-views button[aria-pressed="true"] {background:#171717;color:#fff;border-color:#171717;}
.screenshot-panel [hidden] {
  display: none !important;
}
.product-pending {
  max-width: 420px;
  padding: 48px 0;
  text-align: center;
}
.product-pending h3 {
  margin: 18px 0;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 500;
  letter-spacing: -0.04em;
}
.product-pending > p:not(.eyebrow) {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}
.stage-caption {
  border-top: 1px solid var(--line);
  padding: 13px 24px;
  display: flex;
  justify-content: space-between;
  color: #656565;
  font: 9px/1.6 var(--mono);
  gap: 20px;
}
.stage-caption > span:last-child {
  color: #939393;
  font-size: 8px;
  letter-spacing: 1.2px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 40px;
}
.feature-grid article {
  position: relative;
  padding: 8px 28px 0;
  border-left: 1px solid var(--line);
}
.feature-grid article:first-child {
  padding-left: 0;
  border-left: 0;
}
.feature-grid article:last-child {
  padding-right: 0;
}
.feature-icon {
  display: inline-flex;
  gap: 3px;
  font-size: 30px;
  color: var(--accent);
  height: 48px;
  line-height: 35px;
  letter-spacing: -10px;
}
.tab-icon {
  letter-spacing: 0;
}
.focus-icon {
  font-size: 38px;
  font-weight: 200;
  letter-spacing: 0;
}
.feature-number {
  position: absolute;
  right: 28px;
  top: 18px;
  font: 9px var(--mono);
  color: #989898;
}
.feature-grid h3 {
  font-size: 17px;
  font-weight: 500;
  margin: 13px 0 10px;
  letter-spacing: 0.1px;
}
.feature-grid p {
  font-size: 12px;
  color: var(--muted);
  margin: 0;
  max-width: 310px;
  line-height: 1.9;
}
.download-section {
  background: #ececec;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.accent-text {
  color: var(--accent);
}
.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  align-items: start;
}
.download-card {
  padding: 26px;
  border: 1px solid #c8c8c8;
  background: #ececec;
  border-radius: 3px;
  position: relative;
  min-width: 0;
}
.download-card.recommended {
  border-top: 2px solid var(--accent);
  padding-top: 25px;
  background: linear-gradient(155deg, #e0e0e0, #ececec 50%);
}
.download-card.recommended:before {
  content: "适合当前设备";
  position: absolute;
  right: 20px;
  top: -13px;
  padding: 1px 8px;
  background: var(--accent);
  color: #e8e8e8;
  font-size: 10px;
}
.download-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.os-icon {
  width: 27px;
  height: 27px;
  stroke-width: 1.4;
}
.os-icon.filled {
  fill: currentColor;
  stroke: none;
}
.version {
  font: 9px/1.5 var(--mono);
  color: #707070;
  border: 1px solid #c7c7c7;
  padding: 4px 8px;
  border-radius: 2px;
}
.download-card h3 {
  font-size: 25px;
  font-weight: 500;
  letter-spacing: -0.7px;
  margin: 24px 0 3px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.download-card h3 > span {
  font-size: 10px;
  letter-spacing: 0;
  color: #727272;
  font-weight: 400;
}
.system-requirement {
  font-size: 10px;
  color: #656565;
  margin: 0 0 23px;
}
.platform-description {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.9;
  margin: 0 0 26px;
}
.button-platform {
  width: 100%;
  background: #202020;
  color: #e6e6e6;
  justify-content: space-between;
  padding: 12px 15px;
  font-size: 12px;
}
.button-platform:hover {
  background: var(--accent);
  color: #e6e6e6;
}
.download-card.recommended .button-platform {
  background: var(--accent);
}
.button-platform svg {
  width: 16px;
  height: 16px;
}
.download-secondary {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 9px;
  color: #767676;
  margin-top: 12px;
  align-items: center;
}
.download-secondary a {
  color: #484848;
}
.platform-note {
  font-size: 10px;
  line-height: 1.8;
  color: #707070;
  margin-top: 23px;
  min-height: 54px;
}
.checksums {
  margin-top: 21px;
  border-top: 1px solid #cccccc;
  padding-top: 14px;
}
.checksums summary {
  font-size: 10px;
  color: #515151;
}
.checksums p {
  font-size: 10px;
  color: #666666;
  margin: 15px 0;
}
.checksums a {
  color: var(--accent);
}
summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  list-style: none;
}
summary::-webkit-details-marker {
  display: none;
}
summary > span {
  color: #707070;
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 300;
  transition: transform 0.2s;
}
details[open] > summary > span {
  transform: rotate(45deg);
}
.hash-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  font: 9px/1.6 var(--mono);
  padding: 10px 0;
  border-top: 1px solid #cccccc;
  color: #4c4c4c;
}
.hash-row > button {
  margin-left: auto;
  background: transparent;
  border: 1px solid #b6b6b6;
  border-radius: 2px;
  padding: 3px 7px;
  font-size: 9px;
}
.hash-row code {
  margin-top: 8px;
  display: block;
  width: 100%;
  overflow-wrap: anywhere;
  color: #6e6e6e;
  font-size: 9px;
}
.download-footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  font-size: 10px;
  color: #666666;
  padding-top: 25px;
}
.download-footer .status-dot {
  width: 5px;
  height: 5px;
  margin-right: 6px;
}
.download-footer > span:last-child {
  font: 9px/1.8 var(--mono);
  white-space: nowrap;
}
.download-footer b {
  font-weight: 400;
  margin-left: 12px;
  color: #969696;
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 44px;
  border-top: 1px solid var(--line);
  padding-top: 35px;
}
.step-number {
  font: 35px/1.5 var(--mono);
  font-weight: 300;
  display: flex;
  justify-content: space-between;
  color: #6e6e6e;
  letter-spacing: -2px;
}
.step-number > span {
  font-size: 18px;
  letter-spacing: 0;
  color: #b7b7b7;
  font-weight: 300;
}
.steps h3 {
  font-size: 17px;
  font-weight: 500;
  margin: 25px 0 12px;
}
.steps p {
  font-size: 12px;
  line-height: 1.9;
  color: var(--muted);
  margin: 0;
}
.shortcut-strip {
  border: 1px solid var(--line);
  border-radius: 2px;
  margin-top: 42px;
  padding: 20px 23px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  background: #ececec;
}
.shortcut-strip > span {
  font: 9px/1.6 var(--mono);
  color: #707070;
  letter-spacing: 1px;
}
.shortcut-strip > p {
  margin: 0;
  font-size: 10px;
  color: #676767;
  display: flex;
  align-items: center;
  gap: 5px;
}
kbd {
  border: 1px solid #c1c1c1;
  border-bottom-width: 2px;
  border-radius: 3px;
  background: #e3e3e3;
  color: #585858;
  font: 9px/1.4 var(--mono);
  padding: 3px 6px;
}
.faq-section {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 110px;
  border-top: 1px solid var(--line);
  padding-top: 80px;
}
.faq-intro .eyebrow {
  margin-bottom: 17px;
}
.faq-intro > p:not(.eyebrow) {
  color: var(--muted);
  font-size: 13px;
  margin: 20px 0 28px;
}
.faq-list {
  border-top: 1px solid var(--line);
}
.faq-list details {
  border-bottom: 1px solid var(--line);
  padding: 22px 0;
}
.faq-list summary {
  font-size: 13px;
}
.faq-list details > p {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.95;
  margin: 20px 24px 0 0;
  overflow-wrap: anywhere;
}
.faq-list a {
  text-decoration: underline;
  text-underline-offset: 3px;
  color: #434343;
}
.final-cta {
  border: 1px solid #b6b6b6;
  background:
    radial-gradient(ellipse at right, #7c7c7c16, transparent 65%), #ececec;
  padding: 39px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 25px;
  border-radius: 3px;
  margin-bottom: 90px;
  position: relative;
}
.final-cta:before {
  position: absolute;
  content: "+";
  font: 16px var(--mono);
  left: -6px;
  top: -14px;
  color: var(--accent);
}
.final-cta .eyebrow {
  font-size: 8px;
  letter-spacing: 1.4px;
  margin-bottom: 12px;
}
.final-cta h2 {
  font-size: 31px;
}
.footer {
  padding-bottom: 27px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 25px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line);
}
.footer-top > div {
  display: flex;
  gap: 30px;
  font-size: 11px;
  color: #5d5d5d;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 30px;
  padding-top: 24px;
  color: #959595;
  font-size: 9px;
}
.footer-bottom p {
  margin: 0;
}
.footer-bottom > span {
  font: 8px/1.7 var(--mono);
  letter-spacing: 0.7px;
  white-space: nowrap;
}
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translate(-50%, 15px);
  background: #d6d6d6;
  border: 1px solid #9a9a9a;
  padding: 12px 22px;
  box-shadow: 0 8px 40px #ffffff88;
  z-index: 30;
  font-size: 12px;
  color: var(--accent);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.2s,
    transform 0.2s;
  max-width: 90%;
  text-align: center;
}
.toast.visible {
  opacity: 1;
  transform: translate(-50%, 0);
}
@media (min-width: 1600px) {
  .hero-grid {
    padding-block: 90px;
  }
  .hero h1 {
    font-size: 86px;
  }
}
@media (max-width: 1100px) {
  .container {
    width: calc(100% - 64px);
  }
  .nav-wrap nav {
    gap: 22px;
  }
  .hero-grid {
    gap: 5px;
    padding-block: 60px;
  }
  .hero h1 {
    font-size: 65px;
  }
  .profile-card {
    width: 275px;
    padding: 18px;
  }
  .profile-front {
    right: 65px;
  }
  .profile-middle {
    right: 32px;
  }
  .identity-system {
    height: 410px;
  }
  .profile-card-title {
    font-size: 23px;
  }
  .orbit {
    left: 10px;
  }
  .orbit-two {
    left: -30px;
  }
  .hero-build {
    font-size: 8px;
  }
  .hero-description {
    font-size: 14px;
  }
  .download-card {
    padding: 21px;
  }
  .download-card.recommended {
    padding-top: 20px;
  }
  .download-card h3 {
    font-size: 22px;
    gap: 8px;
  }
  .download-card h3 > span {
    font-size: 9px;
  }
  .system-requirement {
    font-size: 9px;
  }
  .faq-section {
    gap: 60px;
  }
  .shortcut-strip {
    flex-wrap: wrap;
  }
  .shortcut-strip > span {
    width: 100%;
  }
  .screenshot-panel {
    padding: 35px 40px;
  }
  .section {
    padding-block: 85px;
  }
}
@media (max-width: 800px) {
  .container {
    width: calc(100% - 40px);
  }
  .nav-wrap {
    height: 70px;
    gap: 10px;
  }
  .brand {
    font-size: 16px;
    gap: 9px;
  }
  .brand-mark {
    height: 31px;
    width: 31px;
    line-height: 31px;
    font-size: 21px;
  }
  .nav-wrap nav {
    display: none;
  }
  .nav-download {
    font-size: 11px;
    padding: 7px 10px;
    gap: 10px;
  }
  .hero-topline {
    font-size: 8px;
    letter-spacing: 0.7px;
  }
  .hero-build {
    display: none;
  }
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    padding: 55px 0 45px;
  }
  .hero h1 {
    font-size: 49px;
    letter-spacing: -2.5px;
  }
  .hero-description {
    font-size: 12px;
  }
  .hero .eyebrow {
    font-size: 8px;
  }
  .hero-actions {
    gap: 16px;
    flex-wrap: wrap;
  }
  .hero-actions .button {
    padding: 12px 15px;
    font-size: 11px;
  }
  .hero-actions .text-link {
    font-size: 11px;
  }
  .hero-meta {
    font-size: 7px;
    gap: 10px;
  }
  .identity-system {
    height: 350px;
    margin-right: -8px;
  }
  .profile-card {
    width: 230px;
    padding: 15px;
  }
  .profile-front {
    right: 20px;
    top: 170px;
  }
  .profile-middle {
    right: 10px;
    top: 90px;
  }
  .profile-back {
    right: 0;
    top: 10px;
  }
  .profile-card-title {
    font-size: 20px;
    margin: 14px 0;
  }
  .card-status {
    font-size: 7px;
  }
  .card-foot {
    font-size: 6px;
  }
  .system-label {
    bottom: -15px;
    font-size: 6px;
  }
  .coordinate {
    font-size: 6px;
  }
  .coordinate-top {
    top: -20px;
  }
  .coordinate-bottom {
    bottom: -15px;
  }
  .orbit {
    width: 250px;
    height: 250px;
    left: 0;
    top: 50px;
  }
  .orbit-two {
    width: 310px;
    height: 310px;
    left: -20px;
    top: 20px;
  }
  .hero-bottom {
    font-size: 10px;
  }
  .hero-bottom > a {
    font-size: 7px;
    letter-spacing: 0.6px;
  }
  .hero-bottom > a span {
    margin-left: 8px;
  }
  .section {
    padding-block: 65px;
  }
  .section-heading {
    gap: 20px;
    margin-bottom: 28px;
  }
  h2 {
    font-size: 28px;
    letter-spacing: -1px;
  }
  .section-heading > p {
    font-size: 11px;
  }
  .stage-bar {
    padding: 12px 16px;
  }
  .stage-bar > span {
    font-size: 7px;
    letter-spacing: 0.5px;
  }
  .platform-tabs button {
    font-size: 9px;
    padding: 6px 9px;
  }
  .screenshot-panel {
    padding: 24px;
    min-height: 300px;
  }
  .screenshot-panel img.android {
    height: 440px;
  }
  .stage-caption {
    padding: 11px 16px;
    font-size: 8px;
  }
  .stage-caption > span:last-child {
    display: none;
  }
  .feature-grid {
    gap: 18px;
    margin-top: 30px;
  }
  .feature-grid article {
    padding: 0 0 0 18px;
  }
  .feature-grid h3 {
    font-size: 14px;
  }
  .feature-grid p {
    font-size: 11px;
  }
  .feature-number {
    right: 0;
    font-size: 8px;
  }
  .download-grid {
    gap: 12px;
  }
  .download-card {
    padding: 17px;
  }
  .download-card.recommended {
    padding-top: 16px;
  }
  .download-card h3 {
    font-size: 20px;
    display: block;
  }
  .download-card h3 > span {
    display: block;
    margin-top: 3px;
  }
  .version {
    font-size: 7px;
    padding: 3px 5px;
  }
  .os-icon {
    width: 23px;
    height: 23px;
  }
  .system-requirement {
    min-height: 29px;
    line-height: 1.6;
    margin-bottom: 17px;
  }
  .platform-description {
    font-size: 10px;
    min-height: 55px;
    margin-bottom: 18px;
  }
  .button-platform {
    font-size: 10px;
    padding: 10px;
    gap: 5px;
  }
  .button-platform svg {
    width: 13px;
    height: 13px;
  }
  .download-secondary {
    font-size: 8px;
    flex-wrap: wrap;
    min-height: 32px;
  }
  .platform-note {
    font-size: 9px;
    min-height: 65px;
    margin-top: 17px;
  }
  .checksums summary {
    font-size: 9px;
  }
  .download-footer {
    font-size: 9px;
  }
  .download-footer > span:last-child {
    font-size: 8px;
  }
  .steps {
    gap: 25px;
  }
  .steps h3 {
    font-size: 15px;
  }
  .steps p {
    font-size: 11px;
  }
  .faq-section {
    grid-template-columns: 0.8fr 1.4fr;
    gap: 35px;
  }
  .faq-list summary {
    font-size: 12px;
  }
  .faq-list details > p {
    font-size: 11px;
  }
  .final-cta {
    padding: 30px;
    margin-bottom: 65px;
  }
  .final-cta h2 {
    font-size: 26px;
  }
  .final-cta .button {
    font-size: 11px;
    padding: 12px 14px;
  }
  .footer-top > div {
    gap: 17px;
    font-size: 10px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 13px;
  }
}
@media (max-width: 600px) {
  .hero {
    padding-top: 20px;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    padding-top: 43px;
    padding-bottom: 23px;
  }
  .hero h1 {
    font-size: clamp(51px, 11vw, 65px);
    line-height: 1.2;
    letter-spacing: -3px;
    margin-bottom: 24px;
  }
  .hero-copy > .eyebrow {
    margin-bottom: 20px;
  }
  .hero-description {
    font-size: 14px;
    margin-bottom: 25px;
  }
  .hero-actions {
    gap: 25px;
    flex-wrap: nowrap;
  }
  .hero-actions .button {
    padding: 13px 17px;
    font-size: 12px;
  }
  .hero-meta {
    font-size: 8px;
    margin-top: 21px;
    gap: 13px;
  }
  .identity-system {
    width: 100%;
    max-width: 390px;
    margin: 10px auto 0;
    height: 340px;
  }
  .profile-card {
    width: 255px;
    padding: 18px;
  }
  .profile-front {
    right: 45px;
    top: 150px;
  }
  .profile-middle {
    right: 25px;
    top: 75px;
  }
  .profile-back {
    right: 9px;
    top: 0;
  }
  .profile-card-title {
    font-size: 23px;
    margin: 12px 0 16px;
  }
  .card-status {
    font-size: 7px;
  }
  .card-foot {
    font-size: 7px;
  }
  .orbit {
    left: 45px;
    top: 0;
    width: 270px;
    height: 270px;
  }
  .orbit-two {
    left: 17px;
    top: -32px;
    width: 330px;
    height: 330px;
  }
  .coordinate-top {
    right: 0;
    top: -18px;
  }
  .coordinate-bottom {
    bottom: 5px;
    left: 0;
  }
  .system-label {
    bottom: 0;
    right: 0;
  }
  .hero-bottom {
    padding: 18px 0;
    font-size: 9px;
  }
  .hero-bottom > a {
    font-size: 6px;
  }
  .hero-bottom > a span {
    font-size: 14px;
  }
  .section {
    padding-block: 57px;
  }
  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 27px;
  }
  .section-heading .eyebrow {
    font-size: 9px;
    margin-bottom: 12px;
  }
  h2 {
    font-size: 29px;
  }
  .section-heading > p {
    font-size: 12px;
    margin: 0;
  }
  .section-heading > p br {
    display: none;
  }
  .stage-bar {
    padding: 12px 10px;
    flex-wrap: wrap;
    gap: 10px;
  }
  .stage-bar > span {
    font-size: 6px;
  }
  .platform-tabs {
    gap: 0;
  }
  .platform-tabs button {
    padding: 6px 8px;
    font-size: 8px;
  }
  .screenshot-panel {
    padding: 18px 12px;
    min-height: 0;
  }
  .screenshot-panel img.android {
    height: 410px;
  }
  .stage-caption {
    font-size: 7px;
    padding: 9px 12px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
    gap: 22px;
    margin-top: 30px;
  }
  .feature-grid article,
  .feature-grid article:first-child {
    border: 0;
    border-bottom: 1px solid var(--line);
    padding: 0 0 22px 48px;
    min-height: 93px;
  }
  .feature-grid article:last-child {
    border: 0;
    padding-bottom: 0;
  }
  .feature-icon {
    position: absolute;
    left: 0;
    top: 0;
    font-size: 27px;
  }
  .focus-icon {
    font-size: 34px;
  }
  .feature-number {
    top: 3px;
  }
  .feature-grid h3 {
    font-size: 15px;
    margin: 0 0 9px;
  }
  .feature-grid p {
    font-size: 12px;
    max-width: none;
  }
  .download-grid {
    grid-template-columns: 1fr;
    gap: 23px;
  }
  .download-card {
    padding: 25px;
  }
  .download-card.recommended {
    padding-top: 24px;
  }
  .download-card h3 {
    display: flex;
    font-size: 25px;
    margin-top: 20px;
  }
  .download-card h3 > span {
    display: inline;
    margin: 0;
    font-size: 10px;
  }
  .version {
    font-size: 9px;
    padding: 4px 8px;
  }
  .os-icon {
    width: 27px;
    height: 27px;
  }
  .system-requirement {
    font-size: 11px;
    min-height: 0;
    margin-bottom: 18px;
  }
  .platform-description {
    font-size: 12px;
    min-height: 0;
    margin-bottom: 22px;
  }
  .button-platform {
    font-size: 12px;
    padding: 13px 16px;
  }
  .button-platform svg {
    width: 16px;
    height: 16px;
  }
  .download-secondary {
    font-size: 10px;
    min-height: 0;
  }
  .platform-note {
    font-size: 11px;
    min-height: 0;
    margin-top: 20px;
  }
  .checksums summary {
    font-size: 11px;
  }
  .checksums p {
    font-size: 11px;
  }
  .hash-row,
  .hash-row code {
    font-size: 10px;
  }
  .download-footer {
    flex-direction: column;
    gap: 17px;
    font-size: 10px;
    line-height: 1.9;
  }
  .download-footer > span:last-child {
    font-size: 9px;
  }
  .steps {
    grid-template-columns: 1fr;
    gap: 27px;
    padding-top: 25px;
  }
  .steps article {
    position: relative;
    padding-left: 55px;
  }
  .step-number {
    font-size: 25px;
    position: absolute;
    left: 0;
    top: -3px;
  }
  .step-number > span {
    display: none;
  }
  .steps h3 {
    margin: 0 0 10px;
    font-size: 16px;
  }
  .steps p {
    font-size: 12px;
  }
  .shortcut-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 22px;
  }
  .shortcut-strip > p {
    font-size: 11px;
  }
  .shortcut-strip > span {
    margin-bottom: 3px;
  }
  .faq-section {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .faq-intro h2 br {
    display: none;
  }
  .faq-intro > p:not(.eyebrow) {
    font-size: 12px;
    margin-block: 15px;
  }
  .faq-intro > p br {
    display: none;
  }
  .faq-list summary {
    font-size: 12px;
    gap: 13px;
  }
  .faq-list details {
    padding: 21px 0;
  }
  .faq-list details > p {
    font-size: 12px;
    margin-right: 0;
  }
  .final-cta {
    flex-direction: column;
    align-items: flex-start;
    gap: 25px;
    padding: 28px 24px;
    margin-bottom: 50px;
  }
  .final-cta h2 {
    font-size: 26px;
    letter-spacing: -1px;
  }
  .final-cta .eyebrow {
    font-size: 7px;
    letter-spacing: 0.6px;
  }
  .final-cta .button {
    font-size: 12px;
    padding: 12px 18px;
  }
  .footer-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 25px;
    padding-bottom: 25px;
  }
  .footer-top > div {
    gap: 25px;
  }
  .footer-bottom {
    font-size: 9px;
    line-height: 1.9;
  }
  .footer-bottom > span {
    font-size: 7px;
  }
  .mobile-break {
    display: block;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *:before,
  *:after {
    animation: none !important;
    transition: none !important;
  }
  .identity-system:hover .profile-front {
    transform: rotate(-7deg);
  }
  .identity-system:hover .profile-back {
    transform: rotate(10deg);
  }
}

/* Neutral product palette, shared with the immersive desktop shell. */
.header{background:rgba(255,255,255,.94)}
.brand-mark{background:#111;color:#fff;border-color:#111}.brand-mark span{color:inherit}
.button,.nav-download{border-radius:999px}.button-primary:hover{background:#333;border-color:#333}
.hero h1{font-weight:600}.accent-word,.accent-text{color:#171717}.status-dot{box-shadow:none}
.profile-card{border-color:#ddd;background:linear-gradient(125deg,#fafafa,#f0f0f0);border-radius:14px;box-shadow:0 20px 55px #0000000d}
.profile-middle{background:linear-gradient(125deg,#f6f6f6,#ececec);border-color:#ddd}.profile-back{background:#f3f3f3;border-color:#ddd}
.feature-card,.download-card{border-color:#e2e2e2;border-radius:16px}.download-card.recommended{background:#f8f8f8;border-color:#222}
.toast{background:#171717;color:#fff;border-color:#171717;border-radius:10px;box-shadow:0 8px 30px #00000016}
.footer-bottom{color:#666}.grid-background,.hero-glow{opacity:.35}.title-cursor{color:#777}
.milestones-section{border-top:1px solid var(--line)}.milestones-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:48px}
.milestones-heading h2{font-size:42px;font-weight:500;line-height:1.25;letter-spacing:-1.5px;margin:12px 0 0}.milestones-heading>p{max-width:360px;color:#666;font-size:13px;margin:0}
.milestone-list{list-style:none;padding:0;margin:0;border-top:1px solid #dedede}.milestone-list li{display:grid;grid-template-columns:170px minmax(0,1fr) 130px;gap:28px;padding:30px 0;border-bottom:1px solid #e5e5e5;align-items:start}
.milestone-version{font:11px/1.8 var(--mono);color:#666}.milestone-version strong{display:block;font:500 16px/1.6 var(--sans);color:#171717}.milestone-copy h3{font-size:20px;font-weight:500;letter-spacing:-.3px;margin:0 0 10px}.milestone-copy p{font-size:13px;color:#666;line-height:1.9;margin:0;max-width:650px}.milestone-copy a{display:inline-flex;font-size:12px;border-bottom:1px solid #999;margin-top:14px}.milestone-status{justify-self:end;font-size:11px;line-height:1;padding:10px 13px;border-radius:999px;background:#111;color:#fff;white-space:nowrap}.milestone-status.local{background:#efefef;color:#333}.milestone-status.progress,.milestone-status.planned{background:#fff;color:#555;border:1px solid #d6d6d6}
.milestone-note{font-size:12px;color:#777;margin-top:22px}
@media(max-width:900px){.milestones-heading{display:block}.milestones-heading>p{margin-top:22px}.milestone-list li{grid-template-columns:120px minmax(0,1fr);gap:20px}.milestone-status{grid-column:2;justify-self:start}.milestones-heading h2{font-size:34px}}
@media(max-width:560px){.milestone-list li{grid-template-columns:minmax(0,1fr);gap:12px}.milestone-status{grid-column:1;grid-row:2;justify-self:start}.milestone-copy{grid-row:3}.milestone-version strong{display:inline;margin-right:12px}.milestones-heading h2{font-size:29px}.milestone-copy h3{font-size:19px}}

/* Keep the published app mark consistent in the website header and footer. */
.brand-mark{padding:0;letter-spacing:normal;flex-shrink:0}
.brand-mark img{display:block;width:100%;height:100%;border-radius:inherit}

.accelerated-download{margin:16px 0 4px;border:1px solid #e2e2e2;border-radius:10px;background:#fafafa;font-size:12px;color:#666}
.accelerated-download summary{padding:12px 14px;cursor:pointer;display:flex;justify-content:space-between;list-style:none;color:#333;font-weight:600}
.accelerated-download summary::-webkit-details-marker{display:none}
.accelerated-download[open] summary span{transform:rotate(45deg)}
.accelerated-download.suggested{border-color:#aaa}
.accelerated-links{display:flex;flex-wrap:wrap;gap:8px;padding:0 14px}
.accelerated-links a{border:1px solid #d5d5d5;border-radius:7px;background:#fff;padding:8px 10px;color:#222}
.accelerated-links a:hover{border-color:#222}
.accelerated-download p{margin:10px 14px 14px;line-height:1.7;font-size:11px}
.accelerated-download summary:focus-visible,.accelerated-links a:focus-visible{outline:2px solid #222;outline-offset:3px}