:root {
  --ink: #102a3b;
  --ink-soft: #2f4a5c;
  --muted: #667d8d;
  --line: #dbe6e7;
  --paper: #f5f8f6;
  --card: #ffffff;
  --teal: #0c7d74;
  --teal-bright: #25b9a6;
  --teal-soft: #e6f5f1;
  --navy: #102d45;
  --navy-deep: #0b2033;
  --blue: #3572a8;
  --indigo: #645dc1;
  --amber: #bf7824;
  --radius-xl: 32px;
  --radius-lg: 22px;
  --radius-md: 15px;
  --shadow-lg: 0 32px 80px rgba(19, 54, 70, .13);
  --shadow-md: 0 16px 44px rgba(19, 54, 70, .09);
  --content: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 7% 4%, rgba(44, 180, 161, .13), transparent 30rem),
    radial-gradient(circle at 95% 20%, rgba(66, 121, 173, .12), transparent 32rem),
    linear-gradient(180deg, #fbfcfb 0%, var(--paper) 50%, #eef4f2 100%);
  font-family: "Noto Sans CJK SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg width='55' height='55' viewBox='0 0 55 55' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 55 55 0' stroke='%23102a3b' stroke-opacity='.025' stroke-width='1'/%3E%3C/svg%3E");
  content: "";
}

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

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

button {
  font: inherit;
}

::selection {
  color: #fff;
  background: var(--teal);
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  color: #fff;
  background: var(--navy);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(var(--content), calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid transparent;
  transition: background .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.site-header.is-scrolled {
  border-color: rgba(219, 230, 231, .8);
  background: rgba(249, 252, 250, .82);
  box-shadow: 0 8px 30px rgba(19, 54, 70, .05);
  backdrop-filter: blur(18px);
}

.nav-shell {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 13px;
  color: #fff;
  background: linear-gradient(145deg, #20aa9b, #145873);
  box-shadow: 0 10px 24px rgba(12, 125, 116, .23);
  font-size: 19px;
  font-weight: 900;
}

.brand-copy strong {
  display: block;
  font-size: 16px;
  letter-spacing: .04em;
}

.brand-copy small {
  display: block;
  margin-top: -2px;
  color: var(--muted);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .19em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  padding: 8px 13px;
  border-radius: 10px;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: color .16s ease, background .16s ease;
}

.nav-links a:hover {
  color: var(--teal);
  background: rgba(12, 125, 116, .07);
}

.nav-download {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  padding: 0 17px;
  border: 1px solid rgba(12, 125, 116, .22);
  border-radius: 12px;
  color: var(--teal) !important;
  background: rgba(255, 255, 255, .78);
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  background: rgba(255, 255, 255, .84);
  cursor: pointer;
}

.menu-button span,
.menu-button::before,
.menu-button::after {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 10px;
  background: currentColor;
  content: "";
}

.menu-button span {
  margin-block: 4px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(32px, 6vw, 82px);
  align-items: center;
  min-height: min(790px, calc(100vh - 78px));
  padding-block: clamp(54px, 8vw, 104px);
}

.version-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid rgba(12, 125, 116, .18);
  border-radius: 999px;
  color: var(--teal);
  background: rgba(255, 255, 255, .7);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .04em;
}

.version-badge::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #20af8b;
  box-shadow: 0 0 0 5px rgba(32, 175, 139, .11);
  content: "";
}

.hero h1 {
  max-width: 660px;
  margin: 22px 0 20px;
  font-size: clamp(43px, 6vw, 78px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.065em;
}

.hero h1 em {
  color: var(--teal);
  font-style: normal;
}

.hero-lead {
  max-width: 610px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(16px, 1.8vw, 19px);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 14px;
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, #0f8d82, #0b625e);
  box-shadow: 0 13px 28px rgba(12, 125, 116, .23);
}

.button-secondary {
  border-color: var(--line);
  color: var(--ink-soft);
  background: rgba(255, 255, 255, .72);
}

.button svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.9;
}

.hero-platform {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.hero-platform span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-platform span::before {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--teal-bright);
  content: "";
}

.hero-visual {
  position: relative;
  padding: 34px 0 48px 34px;
}

.hero-visual::before {
  position: absolute;
  z-index: -1;
  top: 2%;
  right: -8%;
  width: 90%;
  height: 90%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(42, 174, 157, .22), rgba(53, 114, 168, .08) 48%, transparent 70%);
  filter: blur(4px);
  content: "";
}

.app-window {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .92);
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 35px 90px rgba(17, 57, 74, .21), 0 2px 0 rgba(255, 255, 255, .8) inset;
  transform: perspective(1200px) rotateY(-4deg) rotateX(2deg);
  transform-origin: center right;
}

.window-bar {
  display: flex;
  height: 38px;
  align-items: center;
  gap: 6px;
  padding-inline: 14px;
  border-bottom: 1px solid #e9efef;
  background: #f7faf9;
}

.window-bar i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #d5dfdf;
}

.window-bar i:first-child {
  background: #f1a65e;
}

.window-bar i:nth-child(2) {
  background: #e3ca6f;
}

.window-bar i:nth-child(3) {
  background: #69bb91;
}

.window-bar span {
  margin-left: 8px;
  color: #8a9ba4;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .12em;
}

.app-window img {
  width: 100%;
  aspect-ratio: 1396 / 879;
  object-fit: cover;
}

.floating-note {
  position: absolute;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 13px 16px;
  border: 1px solid rgba(255, 255, 255, .94);
  border-radius: 15px;
  background: rgba(255, 255, 255, .91);
  box-shadow: 0 16px 38px rgba(17, 57, 74, .14);
  backdrop-filter: blur(14px);
  animation: float 5s ease-in-out infinite;
}

.floating-note strong {
  display: block;
  font-size: 12px;
}

.floating-note small {
  display: block;
  color: var(--muted);
  font-size: 10px;
}

.floating-icon {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 11px;
  color: var(--teal);
  background: var(--teal-soft);
  font-size: 11px;
  font-weight: 900;
}

.note-local {
  top: 4px;
  right: -18px;
}

.note-offline {
  bottom: 16px;
  left: -8px;
  animation-delay: -2.2s;
}

@keyframes float {
  0%,
  100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  overflow: hidden;
  margin-bottom: clamp(80px, 10vw, 130px);
  border: 1px solid rgba(219, 230, 231, .9);
  border-radius: 20px;
  background: rgba(255, 255, 255, .65);
  box-shadow: var(--shadow-md);
}

.metric {
  padding: 23px 28px;
}

.metric + .metric {
  border-left: 1px solid var(--line);
}

.metric strong {
  display: block;
  font-size: clamp(25px, 3vw, 36px);
  line-height: 1.15;
  letter-spacing: -.04em;
}

.metric span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.section {
  padding-block: clamp(80px, 10vw, 130px);
}

.section + .section {
  padding-top: 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, .7fr);
  gap: 38px;
  align-items: end;
  margin-bottom: 42px;
}

.kicker {
  margin: 0 0 10px;
  color: var(--teal);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.section-heading h2 {
  max-width: 700px;
  margin: 0;
  font-size: clamp(32px, 4.5vw, 54px);
  line-height: 1.12;
  letter-spacing: -.045em;
}

.section-heading > p {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 15px;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.capability-card {
  position: relative;
  overflow: hidden;
  min-height: 260px;
  padding: 25px;
  border: 1px solid rgba(219, 230, 231, .94);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .86);
  box-shadow: 0 12px 34px rgba(19, 54, 70, .055);
}

.capability-card::after {
  position: absolute;
  right: -60px;
  bottom: -80px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: var(--card-wash);
  content: "";
  transition: transform .3s ease;
}

.capability-card:hover::after {
  transform: scale(1.2);
}

.capability-card:first-child,
.capability-card:nth-child(2) {
  grid-column: span 3;
  min-height: 308px;
}

.capability-card:nth-child(n + 3) {
  grid-column: span 2;
}

.capability-card[data-tone="teal"] {
  --card-soft: #dff3ee;
  --card-ink: #0c7d74;
  --card-wash: #eef9f6;
}

.capability-card[data-tone="indigo"] {
  --card-soft: #ecebff;
  --card-ink: #5d59bb;
  --card-wash: #f3f2ff;
}

.capability-card[data-tone="blue"] {
  --card-soft: #e8f1fa;
  --card-ink: #3572a8;
  --card-wash: #f0f6fc;
}

.capability-card[data-tone="amber"] {
  --card-soft: #fff1dd;
  --card-ink: #b06d1e;
  --card-wash: #fff7eb;
}

.capability-card[data-tone="slate"] {
  --card-soft: #eaf0f2;
  --card-ink: #385d70;
  --card-wash: #f1f6f7;
}

.capability-icon {
  display: grid;
  width: 47px;
  height: 47px;
  place-items: center;
  border-radius: 14px;
  color: var(--card-ink);
  background: var(--card-soft);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .04em;
}

.capability-card h3 {
  margin: 22px 0 8px;
  font-size: clamp(20px, 2.2vw, 27px);
  letter-spacing: -.025em;
}

.capability-card p {
  position: relative;
  z-index: 1;
  max-width: 520px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.capability-points {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 22px;
}

.capability-points span {
  padding: 5px 9px;
  border: 1px solid rgba(16, 42, 59, .07);
  border-radius: 999px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, .68);
  font-size: 10px;
  font-weight: 700;
}

.tour {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 56px);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 90% 8%, rgba(42, 179, 158, .17), transparent 34%),
    linear-gradient(145deg, #0f3049, #0b2438);
  box-shadow: var(--shadow-lg);
  color: #fff;
}

.tour .kicker {
  color: #6de1d0;
}

.tour-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 30px;
}

.tour-heading h2 {
  max-width: 650px;
  margin: 0;
  font-size: clamp(31px, 4vw, 49px);
  line-height: 1.15;
  letter-spacing: -.04em;
}

.tour-heading p {
  max-width: 340px;
  margin: 0 0 5px;
  color: #b6cbd7;
  font-size: 13px;
}

.tour-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  margin-bottom: 22px;
  padding-bottom: 3px;
  scrollbar-width: none;
}

.tour-tabs::-webkit-scrollbar {
  display: none;
}

.tour-tab {
  flex: 0 0 auto;
  padding: 9px 13px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 11px;
  color: #b6cbd7;
  background: rgba(255, 255, 255, .055);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: background .16s ease, color .16s ease, border-color .16s ease;
}

.tour-tab:hover {
  color: #fff;
  background: rgba(255, 255, 255, .09);
}

.tour-tab[aria-selected="true"] {
  border-color: rgba(108, 225, 208, .34);
  color: #dafbf5;
  background: rgba(89, 209, 192, .16);
}

.tour-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(250px, .45fr);
  gap: 30px;
  align-items: center;
}

.tour-screen {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 18px;
  background: #dfe8e7;
  box-shadow: 0 26px 65px rgba(0, 0, 0, .3);
}

.tour-screen img {
  width: 100%;
  aspect-ratio: 1396 / 879;
  object-fit: cover;
}

.tour-copy {
  min-width: 0;
}

.tour-copy .eyebrow {
  color: #6de1d0;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .16em;
}

.tour-copy h3 {
  margin: 10px 0 14px;
  font-size: clamp(25px, 3vw, 38px);
  line-height: 1.18;
  letter-spacing: -.035em;
}

.tour-copy p {
  margin: 0;
  color: #b6cbd7;
  font-size: 14px;
}

.tour-counter {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 25px;
  color: #7896a8;
  font-size: 11px;
  font-weight: 800;
}

.tour-counter strong {
  color: #fff;
  font-size: 21px;
}

.tour-counter i {
  width: 34px;
  height: 1px;
  background: rgba(255, 255, 255, .18);
}

.workflow-grid {
  display: grid;
  grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr);
  gap: 50px;
  align-items: center;
}

.workflow-intro h2 {
  max-width: 520px;
  margin: 0;
  font-size: clamp(33px, 4.5vw, 52px);
  line-height: 1.12;
  letter-spacing: -.045em;
}

.workflow-intro p {
  max-width: 500px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.architecture {
  position: relative;
  padding: 28px;
  border: 1px solid rgba(219, 230, 231, .95);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, .93), rgba(244, 249, 247, .92));
  box-shadow: var(--shadow-md);
}

.architecture::before {
  position: absolute;
  z-index: -1;
  inset: 20px -20px -20px 20px;
  border-radius: var(--radius-xl);
  background: rgba(33, 160, 142, .08);
  content: "";
}

.arch-core {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px;
  border-radius: 17px;
  color: #fff;
  background: linear-gradient(135deg, #143d58, #0c6969);
}

.arch-core span {
  color: #a8c7d2;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .15em;
}

.arch-core strong {
  font-size: 17px;
}

.arch-core b {
  padding: 6px 9px;
  border: 1px solid rgba(255, 255, 255, .17);
  border-radius: 999px;
  color: #c8ede6;
  font-size: 9px;
}

.arch-line {
  width: 1px;
  height: 28px;
  margin-inline: auto;
  background: repeating-linear-gradient(to bottom, #9ab6ba 0 4px, transparent 4px 8px);
}

.addon-chips {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.addon-chip {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.addon-chip img {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  object-fit: cover;
}

.addon-chip b {
  display: block;
  font-size: 11px;
}

.addon-chip span {
  display: block;
  margin-top: 1px;
  color: var(--muted);
  font-size: 9px;
}

.addon-symbol {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 10px;
  color: var(--teal);
  background: var(--teal-soft);
  font-size: 8px;
  font-weight: 900;
}

.workflow-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 24px;
}

.workflow-step {
  padding: 15px;
  border-radius: 14px;
  background: #eff5f3;
}

.workflow-step b {
  display: block;
  color: var(--teal);
  font-size: 10px;
}

.workflow-step span {
  display: block;
  margin-top: 5px;
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 700;
}

.updates-layout {
  display: grid;
  grid-template-columns: minmax(0, .42fr) minmax(0, 1fr);
  gap: clamp(34px, 7vw, 90px);
}

.update-aside {
  position: sticky;
  top: 114px;
  align-self: start;
}

.update-aside h2 {
  margin: 0 0 18px;
  font-size: clamp(34px, 4.6vw, 52px);
  line-height: 1.12;
  letter-spacing: -.045em;
}

.update-aside p {
  max-width: 380px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.site-stamp {
  display: inline-flex;
  margin-top: 24px;
  padding: 8px 11px;
  border-radius: 999px;
  color: var(--teal);
  background: var(--teal-soft);
  font-size: 10px;
  font-weight: 800;
}

.release-list {
  position: relative;
}

.release-list::before {
  position: absolute;
  top: 10px;
  bottom: 16px;
  left: 102px;
  width: 1px;
  background: linear-gradient(var(--teal-bright), #d7e4e3 80%, transparent);
  content: "";
}

.release-item {
  position: relative;
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 42px;
  padding-bottom: 34px;
}

.release-item::before {
  position: absolute;
  top: 8px;
  left: 97px;
  width: 9px;
  height: 9px;
  border: 4px solid var(--paper);
  border-radius: 50%;
  background: var(--teal-bright);
  box-shadow: 0 0 0 1px rgba(12, 125, 116, .22);
  content: "";
}

.release-item:not(:first-child)::before {
  background: #b6c7c7;
  box-shadow: none;
}

.release-time {
  padding-top: 2px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .06em;
}

.release-card {
  padding: 23px 25px;
  border: 1px solid rgba(219, 230, 231, .94);
  border-radius: 19px;
  background: rgba(255, 255, 255, .78);
  box-shadow: 0 10px 30px rgba(19, 54, 70, .05);
}

.release-item:first-child .release-card {
  background: #fff;
  box-shadow: var(--shadow-md);
}

.release-title {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 9px;
}

.release-title strong {
  font-size: 15px;
}

.release-title span {
  padding: 3px 7px;
  border-radius: 6px;
  color: var(--teal);
  background: var(--teal-soft);
  font-size: 8px;
  font-weight: 900;
}

.release-card h3 {
  margin: 0;
  font-size: 20px;
  letter-spacing: -.02em;
}

.release-card > p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.release-card ul {
  display: grid;
  gap: 7px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.release-card li {
  position: relative;
  padding-left: 14px;
  color: var(--ink-soft);
  font-size: 11px;
}

.release-card li::before {
  position: absolute;
  top: .7em;
  left: 0;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #94b7b2;
  content: "";
}

.downloads-section {
  position: relative;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 15px;
}

.download-card {
  display: flex;
  grid-column: span 2;
  min-height: 250px;
  flex-direction: column;
  padding: 23px;
  border: 1px solid rgba(219, 230, 231, .94);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .84);
  box-shadow: 0 10px 30px rgba(19, 54, 70, .05);
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}

.download-card:hover {
  transform: translateY(-3px);
  border-color: rgba(12, 125, 116, .24);
  box-shadow: var(--shadow-md);
}

.download-card.primary {
  grid-column: span 3;
  color: #fff;
  background:
    radial-gradient(circle at 100% 0%, rgba(61, 211, 191, .21), transparent 40%),
    linear-gradient(145deg, #123c57, #0b2b42);
}

.download-card:nth-child(2) {
  grid-column: span 3;
}

.download-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
}

.download-label {
  color: var(--teal);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: .16em;
}

.download-card.primary .download-label {
  color: #67dfce;
}

.download-role {
  padding: 4px 8px;
  border: 1px solid rgba(12, 125, 116, .12);
  border-radius: 999px;
  color: var(--teal);
  background: var(--teal-soft);
  font-size: 9px;
  font-weight: 800;
}

.download-card.primary .download-role {
  border-color: rgba(255, 255, 255, .14);
  color: #bcece4;
  background: rgba(255, 255, 255, .08);
}

.download-card h3 {
  margin: 21px 0 2px;
  font-size: 20px;
  letter-spacing: -.02em;
}

.download-version {
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
}

.download-card.primary .download-version {
  color: #8fb1c3;
}

.download-card p {
  margin: 14px 0 20px;
  color: var(--muted);
  font-size: 12px;
}

.download-card.primary p {
  color: #b5ccd7;
}

.download-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: auto;
}

.download-meta {
  color: var(--muted);
  font-size: 9px;
  font-weight: 700;
}

.download-card.primary .download-meta {
  color: #8fb1c3;
}

.download-action {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  gap: 8px;
  padding: 0 13px;
  border-radius: 11px;
  color: var(--teal);
  background: var(--teal-soft);
  font-size: 10px;
  font-weight: 900;
  text-decoration: none;
}

.download-card.primary .download-action {
  color: #0b4150;
  background: #d9faf4;
}

.download-action svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.download-footnote {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 10px;
}

.download-footnote a {
  color: var(--teal);
  font-weight: 800;
}

.install-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 26px;
  padding: 19px 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, .57);
}

.install-step {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 5px 16px;
  color: var(--muted);
  font-size: 10px;
}

.install-step + .install-step {
  border-left: 1px solid var(--line);
}

.install-step b {
  display: grid;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 9px;
  color: var(--teal);
  background: var(--teal-soft);
  font-size: 9px;
}

.install-step span {
  color: var(--ink-soft);
  font-weight: 700;
}

.faq-wrap {
  display: grid;
  grid-template-columns: minmax(0, .65fr) minmax(0, 1fr);
  gap: 60px;
}

.faq-intro h2 {
  margin: 0;
  font-size: clamp(33px, 4.4vw, 49px);
  line-height: 1.14;
  letter-spacing: -.04em;
}

.faq-intro p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.faq-list {
  border-top: 1px solid var(--line);
}

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

.faq-item button {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 2px;
  border: 0;
  color: var(--ink);
  background: transparent;
  font-size: 13px;
  font-weight: 800;
  text-align: left;
  cursor: pointer;
}

.faq-item button i {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: rotate(45deg);
  transition: transform .18s ease;
}

.faq-item button[aria-expanded="true"] i {
  transform: rotate(225deg);
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .22s ease;
}

.faq-answer > div {
  overflow: hidden;
}

.faq-answer p {
  margin: 0;
  padding: 0 38px 19px 2px;
  color: var(--muted);
  font-size: 12px;
}

.faq-item.is-open .faq-answer {
  grid-template-rows: 1fr;
}

.closing {
  position: relative;
  overflow: hidden;
  padding: clamp(38px, 6vw, 65px);
  border-radius: var(--radius-xl);
  color: #fff;
  background:
    radial-gradient(circle at 86% 8%, rgba(57, 213, 190, .22), transparent 35%),
    linear-gradient(135deg, #0d6f6a, #0f334b 65%, #102a3e);
  box-shadow: var(--shadow-lg);
}

.closing::after {
  position: absolute;
  top: -110px;
  right: -60px;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 50%;
  content: "";
}

.closing h2 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(33px, 5vw, 61px);
  line-height: 1.1;
  letter-spacing: -.05em;
}

.closing p {
  max-width: 620px;
  margin: 18px 0 27px;
  color: #bdd4da;
  font-size: 14px;
}

.closing .button-primary {
  color: #0d4c54;
  background: #d8faf3;
  box-shadow: none;
}

.closing .button-secondary {
  border-color: rgba(255, 255, 255, .16);
  color: #fff;
  background: rgba(255, 255, 255, .07);
}

footer {
  margin-top: 76px;
  padding: 30px 0 38px;
  border-top: 1px solid var(--line);
}

.footer-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
}

.footer-main p {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 10px;
  font-weight: 700;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .65s ease, transform .65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-visual {
    width: min(760px, 100%);
    margin-inline: auto;
    padding-left: 0;
  }

  .capability-card:first-child,
  .capability-card:nth-child(2),
  .capability-card:nth-child(n + 3) {
    grid-column: span 3;
  }

  .capability-card:last-child {
    grid-column: 2 / span 4;
  }

  .tour-stage {
    grid-template-columns: 1fr;
  }

  .tour-copy {
    max-width: 720px;
  }

  .workflow-grid,
  .faq-wrap {
    grid-template-columns: 1fr;
  }

  .workflow-intro {
    max-width: 720px;
  }

  .download-card,
  .download-card.primary,
  .download-card:nth-child(2) {
    grid-column: span 3;
  }
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 28px, var(--content));
  }

  .nav-shell {
    min-height: 68px;
  }

  .menu-button {
    display: grid;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    right: 14px;
    left: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 11px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(251, 253, 252, .97);
    box-shadow: var(--shadow-md);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    padding: 11px 13px;
  }

  .nav-download {
    justify-content: center;
  }

  .hero {
    gap: 30px;
    padding-top: 50px;
  }

  .hero h1 {
    font-size: clamp(39px, 13vw, 62px);
  }

  .hero-platform {
    gap: 10px 16px;
  }

  .hero-visual {
    padding-bottom: 40px;
  }

  .floating-note {
    display: none;
  }

  .app-window {
    border-radius: 16px;
    transform: none;
  }

  .metric {
    padding: 18px 12px;
  }

  .metric strong {
    font-size: 24px;
  }

  .metric span {
    font-size: 10px;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .capability-grid {
    grid-template-columns: 1fr;
  }

  .capability-card:first-child,
  .capability-card:nth-child(2),
  .capability-card:nth-child(n + 3),
  .capability-card:last-child {
    grid-column: auto;
    min-height: auto;
  }

  .tour {
    border-radius: 23px;
  }

  .tour-heading {
    display: block;
  }

  .tour-heading p {
    margin-top: 14px;
  }

  .tour-stage {
    gap: 20px;
  }

  .architecture {
    padding: 19px;
  }

  .workflow-steps {
    grid-template-columns: 1fr;
  }

  .updates-layout {
    grid-template-columns: 1fr;
  }

  .update-aside {
    position: static;
  }

  .release-list::before {
    left: 4px;
  }

  .release-item {
    grid-template-columns: 1fr;
    gap: 7px;
    padding-left: 26px;
  }

  .release-item::before {
    left: -1px;
  }

  .download-card,
  .download-card.primary,
  .download-card:nth-child(2) {
    grid-column: 1 / -1;
  }

  .install-band {
    grid-template-columns: repeat(2, 1fr);
    gap: 13px 0;
  }

  .install-step:nth-child(3) {
    border-left: 0;
  }

  .faq-wrap {
    gap: 32px;
  }

  .footer-main {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 470px) {
  .brand-copy small {
    display: none;
  }

  .hero-actions .button {
    width: 100%;
  }

  .metric strong {
    font-size: 21px;
  }

  .addon-chips,
  .install-band {
    grid-template-columns: 1fr;
  }

  .install-step + .install-step {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .install-step {
    padding-block: 11px;
  }

  .arch-core {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}