:root {
  --ink: #142332;
  --muted: #637383;
  --navy: #091923;
  --blue: #1469e3;
  --mint: #a6f1db;
  --line: #dfe6ed;
  --paper: #f5f7f9;
  --body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container: 1240px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}
body {
  margin: 0;
  color: var(--ink);
  font: 16px/1.8 var(--body);
  background: white;
  -webkit-font-smoothing: antialiased;
}
body.modal-open {
  overflow: hidden;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input {
  font: inherit;
}
button {
  cursor: pointer;
  border: 0;
  color: inherit;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
img,
svg {
  display: block;
  max-width: 100%;
}
img {
  height: auto;
}
h1,
h2,
h3,
h4,
p {
  margin: 0;
}
h1,
h2,
h3,
h4 {
  line-height: 1.4;
  text-wrap: balance;
  font-weight: 600;
}
ul,
ol {
  padding: 0;
  margin: 0;
  list-style: none;
}
a,
button,
summary {
  touch-action: manipulation;
}
a:focus-visible,
button:focus-visible,
summary:focus-visible,
[role="tabpanel"]:focus-visible {
  outline: 3px solid #358eec;
  outline-offset: 5px;
}
::selection {
  background: var(--mint);
  color: var(--navy);
}
[hidden] {
  display: none !important;
}
.mobile-break {
  display: none;
}
.container {
  width: min(var(--container), calc(100% - 96px));
  margin-inline: auto;
}
.section {
  padding-block: 112px;
}
.section-heading {
  margin-bottom: 44px;
  text-align: center;
}
.section-heading h2,
.collaboration-heading h2,
.about-grid h2 {
  font-size: clamp(30px, 3.1vw, 46px);
  letter-spacing: -0.045em;
}
.icon {
  display: inline-flex;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  align-items: center;
  justify-content: center;
}
.icon svg {
  width: 100%;
  height: 100%;
}
.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  min-height: 50px;
  padding: 12px 24px;
  border: 1px solid transparent;
  border-radius: 28px;
  font-size: 16px;
  font-weight: 500;
  transition:
    background 0.2s,
    transform 0.2s;
}
.btn:hover {
  transform: translateY(-2px);
}
.btn-mint {
  background: var(--mint);
  color: #102b2b;
}
.btn-mint:hover {
  background: #c2ffe9;
}
.btn-blue {
  background: var(--blue);
  color: white;
}
.btn-blue:hover {
  background: #0958c8;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 500;
  color: var(--blue);
}
.text-link:hover {
  text-decoration: underline;
  text-underline-offset: 6px;
}
.text-link .icon {
  width: 18px;
}
.skip-link {
  position: fixed;
  left: 20px;
  top: -70px;
  z-index: 200;
  background: white;
  color: var(--ink);
  padding: 12px 20px;
}
.skip-link:focus {
  top: 12px;
}

.site-header {
  height: 76px;
  position: sticky;
  top: 0;
  z-index: 40;
  background: #091923f2;
  color: white;
  border-bottom: 1px solid #ffffff12;
  backdrop-filter: blur(16px);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand img {
  width: 37px;
  height: 37px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}
.brand-name {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}
.main-nav > a {
  font-size: 14px;
  color: #d7e0e7;
  white-space: nowrap;
  transition: color 0.2s;
}
.main-nav > a:hover,
.main-nav > a[aria-current="page"] {
  color: var(--mint);
}
.main-nav .nav-cta {
  background: #fff;
  color: var(--ink);
  padding: 8px 19px;
  border-radius: 24px;
  font-weight: 500;
}
.main-nav .nav-cta:hover {
  background: var(--mint);
  color: var(--ink);
}
.menu-toggle {
  display: none;
  background: none;
  padding: 10px;
  color: white;
}

.home-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 80% 50%, #123746 0%, transparent 57%),
    var(--navy);
  color: white;
}
.hero-main {
  min-height: 700px;
  min-height: clamp(620px, calc(100svh - 76px), 820px);
  position: relative;
  display: grid;
  grid-template-columns: 0.95fr 1.1fr;
  align-items: center;
  padding-block: 70px;
}
.hero-copy {
  position: relative;
  z-index: 2;
}
.hero-copy h1 {
  font-size: clamp(40px, 4.6vw, 68px);
  line-height: 1.38;
  letter-spacing: -0.05em;
  white-space: nowrap;
}
.hero-copy h1 span {
  color: var(--mint);
}
.hero-description {
  margin-top: 26px;
  color: #b7c8d2;
  font-size: 18px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-top: 40px;
}
.hero-actions .text-link {
  color: #e2e8ee;
}
.hero-art {
  position: relative;
  min-width: 0;
  margin: -35px -70px -35px -50px;
}
.hero-art img {
  width: 100%;
  max-width: none;
  animation: art-appear 1s ease-out both;
}

.product-section {
  background: var(--paper);
}
.product-tabs {
  width: fit-content;
  max-width: 100%;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 6px;
  border-radius: 40px;
  background: #e7edf2;
  margin: 0 auto 36px;
}
.product-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  background: transparent;
  padding: 12px 26px;
  border-radius: 30px;
  color: #657788;
  font-size: 16px;
  transition:
    background 0.2s,
    color 0.2s;
  white-space: nowrap;
}
.product-tab[aria-selected="true"] {
  background: white;
  color: var(--ink);
  box-shadow: 0 2px 7px #132d4510;
  font-weight: 600;
}
.product-tab:hover {
  color: var(--blue);
}
.product-tab .icon {
  width: 20px;
}
.product-panel {
  display: grid;
  grid-template-columns: 0.85fr 1.4fr;
  align-items: stretch;
  background: white;
  border-radius: 24px;
  overflow: hidden;
  min-height: 460px;
  animation: panel-appear 0.35s ease-out;
}
.panel-copy {
  order: 1;
  padding: 48px 38px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}
.panel-copy h3 {
  font-size: clamp(25px, 2.4vw, 34px);
  letter-spacing: -0.035em;
  margin-bottom: 20px;
}
.panel-copy > p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}
.panel-copy > .text-link {
  margin-top: 25px;
}
.feature-detail {
  margin-top: 22px;
  width: 100%;
}
.feature-detail summary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: #51697e;
  cursor: pointer;
  list-style: none;
}
.feature-detail summary:after {
  content: "+";
  font-size: 20px;
}
.feature-detail[open] summary:after {
  content: "−";
}
.feature-detail p {
  padding-top: 14px;
  color: var(--muted);
  font-size: 15px;
}
.product-demo {
  order: 2;
  padding: 42px 34px;
  background:
    radial-gradient(ellipse at 85% 20%, #daedf5, transparent 72%), #edf3f7;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}
.demo-window {
  background: white;
  border: 1px solid #dce5ec;
  border-radius: 12px;
  box-shadow: 0 20px 45px #1b466015;
  overflow: hidden;
}
.window-bar {
  height: 42px;
  border-bottom: 1px solid #edf0f4;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 18px;
}
.window-bar i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #d0dce5;
}
.window-bar span {
  margin-left: auto;
  font-size: 12px;
  color: #6e8394;
}
.demo-body {
  padding: 26px;
}
.demo-app-title {
  font-size: 18px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
}
.demo-app-title .icon {
  color: var(--blue);
  width: 20px;
}
.demo-query {
  font-size: 14px;
  color: #687e90;
  background: #f4f7fa;
  padding: 15px;
  border: 1px solid #e7edf2;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 9px;
}
.demo-query .icon {
  width: 17px;
}
.demo-table {
  margin-top: 22px;
  font-size: 13px;
}
.demo-table-header,
.demo-table-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 0.8fr;
  align-items: center;
  gap: 10px;
  padding: 15px 0;
  border-bottom: 1px solid #edf1f4;
}
.demo-table-header {
  color: #7c8e9d;
  padding-top: 0;
}
.demo-table-row:last-child {
  border-bottom: 0;
}
.demo-table-row b {
  font-weight: 500;
}
.demo-tag {
  font-size: 12px;
  border-radius: 5px;
  padding: 4px 8px;
  background: #edf7f2;
  color: #3c866c;
  width: fit-content;
  white-space: nowrap;
}
.demo-tag.is-blue {
  background: #edf4fd;
  color: #3776bc;
}
.demo-tag.is-amber {
  background: #fcf5e9;
  color: #96702d;
}
.cost-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}
.cost-summary div {
  padding: 14px;
  background: #f5f8fb;
  border-radius: 8px;
}
.cost-summary small {
  font-size: 13px;
  color: #718497;
}
.cost-summary b {
  display: block;
  font-size: 16px;
  font-weight: 500;
  color: #294867;
}
.cost-bars {
  display: flex;
  height: 65px;
  align-items: flex-end;
  gap: 10px;
  margin-top: 18px;
}
.cost-bars i {
  flex: 1;
  background: #7eafea;
  border-radius: 4px 4px 0 0;
  height: var(--height);
}
.cost-bars i:nth-child(even) {
  background: #b4d3ef;
}
.chat-message {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 22px 0;
  font-size: 14px;
}
.avatar {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  background: #dfeefa;
  color: #4b83ac;
  border-radius: 9px;
  font-size: 14px;
}
.chat-message small {
  font-size: 12px;
  color: #718597;
}
.chat-message p {
  background: #f1f5f9;
  padding: 12px 14px;
  border-radius: 0 10px 10px;
  line-height: 1.8;
  margin-top: 6px;
}
.chat-message.mine {
  flex-direction: row-reverse;
}
.chat-message.mine p {
  background: #e4f5ed;
}
.chat-read {
  font-size: 12px;
  color: #70897e;
  text-align: right;
}
.knowledge-answer {
  padding: 18px;
  border: 1px solid #e7edf3;
  border-radius: 9px;
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.9;
}
.knowledge-answer b {
  display: block;
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 9px;
}
.source-tag {
  display: inline-block;
  padding: 4px 9px;
  background: #ecf4fb;
  border-radius: 5px;
  color: #4c7f9f;
  font-size: 12px;
  margin-top: 12px;
}
.source-tag + .source-tag {
  margin-left: 5px;
}

.collaboration-section {
  overflow: hidden;
  padding-top: 106px;
  background: linear-gradient(180deg, #fff 35%, #eaf4f5 100%);
}
.collaboration-heading {
  text-align: center;
}
.collaboration-heading .text-link {
  margin-top: 22px;
}
.collaboration-visual {
  padding-top: 55px;
  padding-bottom: 90px;
}
.devices {
  position: relative;
  width: 94%;
  aspect-ratio: 1.88;
  margin-inline: auto;
  isolation: isolate;
}
.devices:before {
  position: absolute;
  content: "";
  inset: 10% 3% 3%;
  background: radial-gradient(ellipse, #90c3d237, transparent 70%);
  z-index: -1;
}
.desktop-device {
  position: absolute;
  width: 86%;
  left: 0;
  top: 4%;
  border: 7px solid #445969;
  border-bottom-width: 11px;
  border-radius: 15px;
  background: #f4f7fa;
  box-shadow: 0 22px 50px #15354426;
}
.desktop-device:after {
  content: "";
  position: absolute;
  top: calc(100% + 10px);
  height: 18px;
  left: -2.5%;
  right: -2.5%;
  background: linear-gradient(#a3b1bc, #637a8c);
  clip-path: polygon(2% 0, 98% 0, 100% 65%, 99% 100%, 1% 100%, 0 65%);
  border-radius: 0 0 15px 15px;
}
.device-screenshot {
  width: 100%;
  height: auto;
}
.desktop-device .device-screenshot {
  border-radius: 7px;
}
.phone-device {
  position: absolute;
  right: 0;
  bottom: -2%;
  width: 22%;
  border: 5px solid #52697a;
  border-radius: 28px;
  background: #fafcfd;
  box-shadow: 0 20px 45px #15354430;
  overflow: hidden;
}
.about-section {
  background: white;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 90px;
  align-items: start;
}
.about-grid h2 span {
  color: #78919e;
}
.about-copy h3 {
  font-size: 22px;
  margin-bottom: 20px;
}
.about-copy p {
  color: var(--muted);
  font-size: 18px;
  line-height: 2;
}
.security-details {
  margin-top: 58px;
  border-top: 1px solid var(--line);
}
.security-details > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  list-style: none;
  padding: 26px 0 0;
  cursor: pointer;
  font-size: 18px;
}
.security-details > summary > .icon {
  color: #4c7d76;
}
.security-details > summary:after {
  content: "+";
  margin-left: auto;
  font-size: 26px;
  color: #7e929f;
}
.security-details[open] > summary:after {
  content: "−";
}
.security-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  padding-top: 30px;
}
.security-items h3 {
  font-size: 18px;
  margin-bottom: 8px;
}
.security-items p {
  color: var(--muted);
  font-size: 16px;
}
.contact-section {
  padding-block: 76px;
  background: var(--navy);
  color: white;
}
.contact-layout {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  align-items: center;
}
.contact-section h2 {
  font-size: clamp(28px, 3.1vw, 42px);
  letter-spacing: -0.03em;
}
.contact-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}
.contact-phone {
  font-size: 32px;
  letter-spacing: -0.03em;
}
.contact-email {
  color: var(--mint);
  font-size: 17px;
}
.contact-email:hover {
  text-decoration: underline;
}
.contact-location {
  color: #8fa6b7;
  font-size: 14px;
  margin-top: 8px;
}
.site-footer {
  padding-block: 34px 24px;
  background: #f5f7f9;
  color: #687d8e;
}
.footer-main {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  padding-bottom: 26px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.footer-brand img {
  width: 30px;
  height: 30px;
  object-fit: contain;
}
.footer-brand b {
  font-weight: 500;
  font-size: 14px;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  font-size: 14px;
}
.footer-links a:hover,
.footer-legal a:hover {
  color: var(--blue);
}
.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  font-size: 12px;
}
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.download-hero {
  overflow: hidden;
  background:
    radial-gradient(ellipse at 80% 40%, #e2f1f7, transparent 65%), #f5f7f9;
}
.download-hero-inner {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  align-items: center;
  gap: 56px;
  padding-block: 75px 95px;
  min-height: 490px;
}
.download-hero h1 {
  font-size: clamp(38px, 4.1vw, 58px);
  letter-spacing: -0.05em;
}
.download-hero p {
  margin-top: 20px;
  font-size: 21px;
  color: var(--muted);
}
.recommended-download {
  margin-top: 32px;
  max-width: 100%;
}
.download-hero .devices {
  width: 100%;
}
.downloads-section {
  padding: 65px 0 76px;
}
.download-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.download-card {
  padding: 30px 22px;
  border-radius: 18px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 0;
  background: #f5f7f9;
  transition:
    transform 0.25s,
    background 0.25s;
}
.download-card:hover {
  transform: translateY(-4px);
  background: #edf3fa;
}
.platform-icon {
  display: flex;
  color: #173951;
  margin-bottom: 22px;
}
.platform-icon > .icon {
  width: 40px;
  height: 40px;
}
.platform-icon .windows {
  color: #1677e8;
}
.platform-icon .android {
  color: #589b71;
}
.download-card h2 {
  font-size: 23px;
  margin-bottom: 14px;
}
.platform-description {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 28px;
}
.download-card .btn {
  width: 100%;
  margin-top: auto;
  font-size: 15px;
  gap: 10px;
}
.download-support {
  background: var(--paper);
  padding-block: 80px;
}
.support-layout {
  display: grid;
  grid-template-columns: 0.65fr 1fr;
  gap: 90px;
}
.support-heading h2 {
  font-size: 36px;
  margin-bottom: 22px;
}
.faq-list details {
  border-bottom: 1px solid #d9e3ea;
}
.faq-list details:first-child {
  border-top: 1px solid #d9e3ea;
}
.faq-list summary {
  cursor: pointer;
  list-style: none;
  padding: 23px 32px 23px 0;
  font-size: 18px;
  position: relative;
}
summary::-webkit-details-marker {
  display: none;
}
.faq-list summary:after {
  content: "+";
  position: absolute;
  right: 3px;
  top: 19px;
  font-size: 26px;
  color: #7f98ab;
}
.faq-list details[open] summary:after {
  content: "−";
}
.faq-list details p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
  padding: 0 28px 24px 0;
}
.faq-list details a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  overflow-wrap: anywhere;
}
.login-steps {
  list-style: decimal;
  padding-left: 22px;
}
.login-steps b {
  font-size: 16px;
  font-weight: 500;
}
.login-steps p {
  padding-top: 5px !important;
}
.qr-dialog {
  border: 1px solid #dbe5ed;
  border-radius: 20px;
  width: min(430px, calc(100% - 32px));
  max-height: calc(100svh - 32px);
  overflow-y: auto;
  padding: 40px 30px 28px;
  color: var(--ink);
  box-shadow: 0 30px 100px #0004;
  text-align: center;
}
.qr-dialog::backdrop {
  background: #071523b8;
  backdrop-filter: blur(7px);
}
.qr-dialog h2 {
  font-size: 24px;
  margin: 9px 0 14px;
}
.modal-description {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.8;
}
.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: #f2f5f7;
  border-radius: 50%;
  padding: 10px;
  color: #5c7080;
}
.modal-close .icon {
  width: 18px;
  height: 18px;
}
.qr-frame {
  width: 236px;
  max-width: 100%;
  margin: 20px auto;
  padding: 8px;
  background: white;
  border: 1px solid #e1e8ee;
  border-radius: 10px;
}
.qr-frame img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
}
.qr-error {
  font-size: 14px;
  color: #9b6235;
  padding: 16px;
}
.market-link {
  font-size: 15px;
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.modal-note {
  font-size: 13px;
  color: #718597;
  line-height: 1.8;
  margin-top: 18px;
}
.reveal {
  opacity: 1;
  transform: none;
}
.reveal.will-reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 0.65s ease,
    transform 0.65s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
@keyframes art-appear {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes panel-appear {
  from {
    opacity: 0.55;
    transform: translateY(7px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (min-width: 1600px) {
  :root {
    --container: 1320px;
  }
  .hero-main {
    min-height: 780px;
  }
}
@media (max-width: 1100px) {
  .container {
    width: calc(100% - 64px);
  }
  .main-nav {
    gap: 20px;
  }
  .hero-main {
    min-height: 620px;
  }
  .hero-description {
    font-size: 17px;
  }
  .hero-art {
    margin-inline: -30px -60px;
  }
  .hero-actions {
    gap: 23px;
  }
  .product-panel {
    grid-template-columns: 0.85fr 1.2fr;
  }
  .panel-copy {
    padding: 35px 26px;
  }
  .product-demo {
    padding: 32px 24px;
  }
  .demo-body {
    padding: 22px;
  }
  .demo-table-header,
  .demo-table-row {
    grid-template-columns: 1.4fr 1fr 0.85fr;
    gap: 8px;
  }
  .about-grid {
    gap: 50px;
  }
  .download-hero-inner {
    gap: 35px;
    min-height: 400px;
  }
  .download-hero p {
    font-size: 18px;
  }
  .download-cards {
    gap: 16px;
  }
  .download-card {
    padding: 28px 16px;
  }
  .download-card h2 {
    font-size: 21px;
  }
  .support-layout {
    gap: 50px;
  }
}
@media (max-width: 900px) {
  .main-nav {
    gap: 16px;
  }
  .main-nav > a {
    font-size: 13px;
  }
  .brand-name {
    font-size: 20px;
  }
  .brand img {
    width: 32px;
    height: 32px;
  }
  .section {
    padding-block: 84px;
  }
  .hero-main {
    min-height: 570px;
  }
  .hero-copy h1 {
    font-size: 40px;
  }
  .hero-description {
    font-size: 16px;
  }
  .hero-art {
    margin-inline: -35px -55px;
  }
  .hero-actions {
    gap: 20px;
  }
  .hero-actions .btn {
    padding-inline: 20px;
  }
  .hero-actions .text-link {
    font-size: 15px;
  }
  .product-panel {
    grid-template-columns: 1fr;
  }
  .panel-copy {
    padding: 36px;
    display: grid;
    grid-template-columns: 1fr auto;
    column-gap: 24px;
  }
  .panel-copy h3,
  .panel-copy > p {
    grid-column: 1 / -1;
  }
  .panel-copy h3 {
    margin-bottom: 12px;
  }
  .panel-copy > .text-link {
    align-self: start;
    margin-top: 22px;
  }
  .panel-copy .feature-detail[open] {
    grid-column: 1 / -1;
  }
  .product-demo {
    padding: 36px;
  }
  .demo-window {
    width: 100%;
    max-width: 650px;
    margin-inline: auto;
  }
  .demo-table {
    font-size: 14px;
  }
  .demo-table-header,
  .demo-table-row {
    grid-template-columns: 1.5fr 1fr 0.8fr;
  }
  .about-grid {
    grid-template-columns: 1fr 1.15fr;
    gap: 40px;
  }
  .about-copy h3 {
    font-size: 19px;
  }
  .about-copy p {
    font-size: 16px;
  }
  .security-items {
    gap: 28px;
  }
  .collaboration-section {
    padding-top: 80px;
  }
  .contact-phone {
    font-size: 26px;
  }
  .contact-email {
    font-size: 15px;
  }
  .footer-main {
    align-items: flex-start;
  }
  .footer-links {
    gap: 16px;
  }
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
  .download-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .download-card {
    padding: 32px 28px;
  }
  .platform-description {
    font-size: 15px;
  }
  .download-card .btn {
    max-width: 240px;
  }
  .support-layout {
    grid-template-columns: 1fr 1.6fr;
    gap: 40px;
  }
  .support-heading h2 {
    font-size: 30px;
  }
}
@media (max-width: 760px) {
  .mobile-break {
    display: block;
  }
  html {
    scroll-padding-top: 85px;
  }
  .container {
    width: calc(100% - 40px);
  }
  .site-header {
    height: 66px;
  }
  .menu-toggle {
    display: flex;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 65px;
    left: 0;
    right: 0;
    padding: 14px 20px 24px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #0c202e;
    box-shadow: 0 20px 25px #0002;
  }
  .main-nav.is-open {
    display: flex;
  }
  .main-nav > a {
    padding: 12px 8px;
    font-size: 16px;
  }
  .main-nav .nav-cta {
    margin-top: 8px;
    text-align: center;
  }
  .section {
    padding-block: 68px;
  }
  .section-heading {
    margin-bottom: 28px;
  }
  .section-heading h2,
  .collaboration-heading h2,
  .about-grid h2 {
    font-size: 30px;
  }
  .hero-main {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 65px 0 25px;
    text-align: center;
  }
  .hero-copy h1 {
    font-size: clamp(38px, 6.8vw, 56px);
    line-height: 1.4;
  }
  .hero-description {
    font-size: 16px;
    margin-top: 22px;
  }
  .hero-actions {
    justify-content: center;
    margin-top: 30px;
  }
  .hero-art {
    width: min(570px, 120%);
    justify-self: center;
    margin: 0 -10% -55px;
  }
  .product-tabs {
    width: 100%;
    padding: 4px;
    margin-bottom: 24px;
    border-radius: 16px;
  }
  .product-tab {
    padding: 12px 4px;
    font-size: 15px;
    border-radius: 12px;
  }
  .product-tab .icon {
    display: none;
  }
  .product-panel {
    border-radius: 20px;
    min-height: 0;
  }
  .panel-copy {
    padding: 30px 24px;
    column-gap: 10px;
  }
  .panel-copy h3 {
    font-size: 27px;
  }
  .panel-copy > p {
    font-size: 16px;
  }
  .feature-detail summary {
    font-size: 15px;
  }
  .feature-detail p {
    font-size: 15px;
  }
  .panel-copy > .text-link {
    font-size: 15px;
  }
  .product-demo {
    padding: 28px 16px;
  }
  .demo-body {
    padding: 20px 16px;
  }
  .demo-app-title {
    font-size: 16px;
    margin-bottom: 18px;
  }
  .demo-query {
    font-size: 13px;
    padding: 12px;
  }
  .demo-table {
    font-size: 12px;
  }
  .demo-table-header,
  .demo-table-row {
    gap: 6px;
    grid-template-columns: 1.3fr 1fr 0.8fr;
  }
  .demo-tag {
    font-size: 11px;
    padding: 4px 5px;
  }
  .chat-message {
    gap: 8px;
    font-size: 13px;
  }
  .chat-message p {
    padding: 10px;
  }
  .chat-read {
    font-size: 11px;
  }
  .knowledge-answer {
    padding: 14px;
    font-size: 13px;
  }
  .source-tag {
    padding: 3px 6px;
    font-size: 11px;
  }
  .collaboration-section {
    padding-top: 65px;
  }
  .collaboration-visual {
    padding-top: 35px;
    padding-bottom: 65px;
  }
  .devices {
    width: 98%;
  }
  .desktop-device {
    border-width: 4px;
    border-bottom-width: 6px;
    border-radius: 8px;
  }
  .desktop-device:after {
    top: calc(100% + 6px);
    height: 10px;
  }
  .phone-device {
    border-width: 3px;
    border-radius: 14px;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .about-copy h3 {
    font-size: 20px;
    margin-bottom: 14px;
  }
  .about-copy p {
    font-size: 17px;
  }
  .security-details {
    margin-top: 35px;
  }
  .security-details > summary {
    font-size: 17px;
  }
  .security-items {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .contact-section {
    padding-block: 55px;
  }
  .contact-layout {
    align-items: flex-start;
    flex-direction: column;
    gap: 30px;
  }
  .contact-section h2 {
    font-size: 30px;
  }
  .contact-phone {
    font-size: 28px;
  }
  .footer-main {
    flex-direction: column;
    gap: 20px;
  }
  .footer-brand b {
    font-size: 13px;
  }
  .footer-brand img {
    width: 26px;
    height: 26px;
  }
  .footer-links {
    font-size: 13px;
    gap: 24px;
  }
  .footer-bottom {
    font-size: 11px;
  }
  .footer-legal {
    gap: 14px;
  }
  .download-hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    padding-block: 48px 54px;
    gap: 34px;
  }
  .download-hero h1 {
    font-size: 40px;
  }
  .download-hero p {
    font-size: 18px;
    margin-top: 12px;
  }
  .download-hero .devices {
    width: min(520px, 94%);
  }
  .downloads-section {
    padding: 30px 0 50px;
  }
  .download-cards {
    gap: 14px;
  }
  .download-card {
    padding: 24px 12px;
    border-radius: 15px;
  }
  .download-card h2 {
    font-size: 19px;
    margin-bottom: 10px;
  }
  .platform-icon {
    margin-bottom: 18px;
  }
  .platform-icon > .icon {
    width: 34px;
    height: 34px;
  }
  .platform-description {
    font-size: 13px;
    margin-bottom: 22px;
  }
  .download-card .btn {
    font-size: 14px;
    min-height: 44px;
    gap: 6px;
    padding: 10px;
  }
  .download-card .btn .icon {
    width: 17px;
  }
  .download-support {
    padding-block: 50px;
  }
  .support-layout {
    grid-template-columns: 1fr;
    gap: 26px;
  }
  .support-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
  }
  .support-heading h2 {
    margin: 0;
    font-size: 28px;
  }
  .support-heading .text-link {
    font-size: 15px;
  }
  .faq-list summary {
    font-size: 16px;
    padding-block: 20px;
  }
  .faq-list summary:after {
    top: 17px;
  }
  .faq-list details p {
    font-size: 15px;
    padding-right: 12px;
  }
  .qr-dialog {
    padding-inline: 22px;
  }
  .qr-dialog h2 {
    font-size: 22px;
  }
}
@media (max-width: 370px) {
  .container {
    width: calc(100% - 32px);
  }
  .hero-copy h1 {
    font-size: 36px;
  }
  .hero-description {
    font-size: 15px;
  }
  .hero-actions {
    gap: 20px;
  }
  .hero-actions .btn {
    font-size: 15px;
    gap: 12px;
  }
  .product-tab {
    font-size: 14px;
  }
  .panel-copy {
    padding-inline: 20px;
  }
  .product-demo {
    padding-inline: 10px;
  }
  .demo-table-header,
  .demo-table-row {
    grid-template-columns: 1.2fr 0.9fr 0.8fr;
  }
  .demo-table {
    font-size: 11px;
  }
  .source-tag {
    font-size: 10px;
  }
  .download-card h2 {
    font-size: 17px;
  }
  .download-cards {
    gap: 10px;
  }
  .download-card .btn {
    font-size: 13px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *:before,
  *:after {
    animation: none !important;
    transition: none !important;
  }
  .reveal.will-reveal {
    opacity: 1;
    transform: none;
  }
}