:root {
  --paper: #edf4ff;
  --paper-2: #ffffff;
  --ink: #0b1b33;
  --ink-2: #1c3350;
  --muted: #4f6480;
  --quiet: #7d90ab;
  --line: #d7e3f6;
  --line-strong: #b4c9e8;
  --blue: #1f5eff;
  --blue-2: #7fd4ff;
  --blue-soft: #e8edff;
  --container: 1280px;
  --font: "Inter", "Manrope", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "Fragment Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Noto Sans Mono CJK SC", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100svh;
  background: var(--paper-2);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.menu-open { overflow: hidden; }

a { color: inherit; }
img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; }
::selection { background: var(--blue); color: #fff; }

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.container {
  width: min(calc(100% - 64px), var(--container));
  margin-inline: auto;
  position: relative;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.mono { font-family: var(--mono); }

.micro {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--quiet);
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(247, 250, 255, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  transition: background-color 0.25s ease;
}

.site-header.is-scrolled { background: rgba(255, 255, 255, 0.97); }

.header-inner {
  width: min(calc(100% - 64px), var(--container));
  height: 64px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
  flex-shrink: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--line);
  flex-shrink: 0;
}

.brand-mark img { width: 22px; height: 22px; object-fit: contain; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-left: auto;
}

.nav-links a {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--ink); }

.menu-button {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-left: auto;
  background: transparent;
  border: 0;
  cursor: pointer;
  color: var(--ink);
}

.menu-button svg { width: 22px; height: 22px; }

/* ---------- Buttons ---------- */
.btn-aurora {
  position: relative;
  display: inline-flex;
  padding: 1px;
  border-radius: 6px;
  background: linear-gradient(110deg, var(--blue) 0%, var(--blue-2) 22%, #e8edff 44%, var(--blue) 68%, var(--blue) 100%);
  background-size: 220% 100%;
  animation: aurora-flow 4s linear infinite;
  box-shadow: 0 0 0 1px rgba(31, 94, 255, 0.05), 0 0 16px rgba(31, 94, 255, 0.2);
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.btn-aurora:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 0 1px rgba(31, 94, 255, 0.12), 0 0 24px rgba(31, 94, 255, 0.34);
}

.btn-aurora-inner {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 42px;
  padding: 0 18px;
  border-radius: 5px;
  background: #fff;
  color: var(--blue);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.btn-aurora-inner svg { width: 15px; height: 15px; color: var(--blue); }
.btn-aurora-inner .android-icon { width: 17px; height: 17px; object-fit: contain; }

.btn-aurora-wide { width: 100%; }
.btn-aurora-wide .btn-aurora-inner { width: 100%; }

@keyframes aurora-flow {
  to { background-position: 220% 0; }
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-strong);
  font-size: 13px;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.text-link:hover { color: var(--blue); border-color: var(--blue); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 112px 0 64px;
  background: linear-gradient(180deg, #e4efff 0%, #f2f8ff 55%, #ffffff 100%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.hero-fluid {
  position: absolute;
  inset: -12% -6%;
  z-index: 0;
  pointer-events: none;
  filter: blur(64px);
  opacity: 0.9;
}

.fluid {
  position: absolute;
  border-radius: 50%;
  will-change: transform;
}

.fluid-a {
  width: 42vw;
  height: 42vw;
  left: -8%;
  top: -16%;
  background: radial-gradient(circle at 35% 35%, rgba(127, 212, 255, 0.9), rgba(31, 94, 255, 0.5) 55%, rgba(31, 94, 255, 0) 72%);
  animation: fluid-a 22s ease-in-out infinite alternate;
}

.fluid-b {
  width: 34vw;
  height: 34vw;
  right: -4%;
  top: -12%;
  background: radial-gradient(circle at 60% 40%, rgba(190, 210, 255, 0.9), rgba(31, 94, 255, 0.4) 55%, rgba(31, 94, 255, 0) 72%);
  animation: fluid-b 26s ease-in-out infinite alternate;
}

.fluid-c {
  width: 40vw;
  height: 40vw;
  left: 28%;
  bottom: -26%;
  background: radial-gradient(circle at 50% 50%, rgba(232, 240, 255, 0.95), rgba(91, 140, 255, 0.4) 55%, rgba(31, 94, 255, 0) 72%);
  animation: fluid-c 30s ease-in-out infinite alternate;
}

@keyframes fluid-a {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(10vw, 8vh, 0) scale(1.12); }
}

@keyframes fluid-b {
  0% { transform: translate3d(0, 0, 0) scale(1.05); }
  100% { transform: translate3d(-8vw, 12vh, 0) scale(0.92); }
}

@keyframes fluid-c {
  0% { transform: translate3d(0, 0, 0) scale(0.95); }
  100% { transform: translate3d(-6vw, -10vh, 0) scale(1.1); }
}

.fluid-d {
  width: 30vw;
  height: 30vw;
  left: 6%;
  bottom: -18%;
  background: radial-gradient(circle at 50% 50%, rgba(210, 226, 255, 0.9), rgba(91, 140, 255, 0.28) 55%, rgba(31, 94, 255, 0) 72%);
  animation: fluid-d 34s ease-in-out infinite alternate;
}

@keyframes fluid-d {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(8vw, -8vh, 0) scale(1.08); }
}

.hero-gridlines {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image: linear-gradient(90deg, rgba(31, 94, 255, 0.06) 1px, transparent 1px);
  background-size: calc(100% / 12) 100%;
  pointer-events: none;
}

.hero .container { z-index: 2; }

.hero-topline {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.hero-title {
  margin: 0;
  font-size: clamp(44px, 10vw, 128px);
  font-weight: 600;
  line-height: 0.92;
  letter-spacing: -0.06em;
  color: var(--ink);
}

.wordmark { display: inline-block; white-space: nowrap; }
.blue-o { color: var(--blue); }

.hero-lower {
  display: grid;
  grid-template-columns: 440px 1fr;
  gap: 40px;
  align-items: start;
  margin-top: 32px;
}

.hero-slogan {
  margin: 0 0 14px;
  font-size: 24px;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--ink-2);
}

.hero-copy {
  align-self: stretch;
  display: flex;
  flex-direction: column;
}

.hero-desc {
  margin: 0;
  max-width: 440px;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.8;
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 340px;
  margin-top: 26px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 28px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--quiet);
}

.hero-meta span + span::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-strong);
}

.hero-visual { position: relative; }

.visual-plane {
  position: absolute;
  right: -16px;
  top: -18px;
  width: 210px;
  height: 210px;
  background: var(--blue);
  z-index: 0;
}

.device-frame {
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: #fff;
  overflow: hidden;
}

.hero-desktop {
  position: relative;
  z-index: 1;
}

.shot-bar {
  position: relative;
  display: flex;
  align-items: center;
  height: 30px;
  padding: 0 12px;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.traffic { display: inline-flex; align-items: center; gap: 5px; }
.traffic i { display: block; width: 7px; height: 7px; border-radius: 50%; background: #d3d3cb; }
.traffic i:nth-child(2) { background: #bfbfb6; }
.traffic i:nth-child(3) { background: #a9a9a0; }

.shot-title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--quiet);
}

.shot-label { margin-left: auto; }

.device-frame img { width: 100%; height: auto; display: block; }

.hero-phone {
  position: absolute;
  left: 0;
  bottom: -30px;
  z-index: 2;
  width: 190px;
  padding: 5px;
  border: 1px solid #111;
  border-radius: 22px;
  background: #111;
  box-shadow: 0 24px 48px rgba(17, 18, 20, 0.16);
  overflow: hidden;
}

.hero-phone img {
  width: 100%;
  height: 370px;
  object-fit: cover;
  object-position: top center;
  border-radius: 18px;
  display: block;
  background: #fff;
}

/* ---------- Sections ---------- */
.section {
  padding: 80px 0;
  background: var(--paper-2);
}

.section + .section { border-top: 1px solid var(--line); }

.section-head {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 56px;
  align-items: end;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

.section-intro .micro { color: var(--blue); }

.section-intro h2 {
  margin: 0;
  font-size: clamp(36px, 4.4vw, 56px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.045em;
  color: var(--ink);
}

.section-head > p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

/* ---------- Gallery ---------- */
.showcase + .showcase { margin-top: 54px; }

.showcase-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  margin-bottom: 20px;
}

.phone-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1040px;
  margin-inline: auto;
  align-items: start;
}

.phone-tile, .desktop-tile { margin: 0; }

.phone-shot {
  width: 100%;
  max-width: 220px;
  margin-inline: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  overflow: hidden;
}

.phone-shot img { width: 100%; height: auto; display: block; }

.desktop-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.desktop-tile .device-frame { border-color: var(--line); }

.phone-tile figcaption,
.desktop-tile figcaption {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-top: 10px;
  font-size: 12px;
  color: var(--muted);
}

.phone-tile figcaption { justify-content: center; }

.phone-tile figcaption span,
.desktop-tile figcaption span {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--quiet);
}

.swipe-hint {
  display: none;
  margin: 14px 0 0;
  text-align: center;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--quiet);
}

/* ---------- Download ---------- */
.download-section { background: var(--paper); }

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

.download-row {
  display: grid;
  grid-template-columns: 1.05fr 1.4fr auto;
  gap: 32px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.dl-platform {
  display: flex;
  align-items: center;
  gap: 14px;
}

.dl-index {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--quiet);
}

.dl-platform img,
.dl-platform svg {
  width: 28px;
  height: 28px;
  object-fit: contain;
  color: var(--blue);
  flex-shrink: 0;
}

.dl-platform h3 {
  margin: 0;
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
}

.dl-meta {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.dl-version {
  display: block;
  margin-top: 2px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--quiet);
}

.dl-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 20px;
}

.dl-actions .btn-aurora-inner { height: 38px; padding: 0 16px; font-size: 13px; }
.dl-actions .btn-aurora-inner .android-icon { width: 15px; height: 15px; }
.dl-actions .btn-aurora-inner svg { width: 14px; height: 14px; }

/* ---------- Community ---------- */
.community-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 40px;
  align-items: center;
  margin-top: 36px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
}

.community-copy h3 {
  margin: 10px 0 6px;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.community-copy p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.community-qr {
  width: 96px;
  height: 96px;
  object-fit: cover;
  border: 1px solid var(--line);
}

.community-links {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--paper-2);
  padding: 22px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--quiet);
}

.footer-stats { display: flex; align-items: center; gap: 18px; }
.footer-stats strong { color: var(--ink); font-weight: 500; }
.footer-legal { display: flex; align-items: center; gap: 14px; }
.footer-legal a { color: var(--quiet); text-decoration: none; }
.footer-legal a:hover { color: var(--blue); }

/* ---------- Mobile menu ---------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  display: none;
  flex-direction: column;
  padding: 88px 24px 32px;
  background: var(--paper-2);
}

.mobile-menu.is-open { display: flex; }

.mobile-menu nav { display: grid; }

.mobile-menu nav a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--ink);
}

.mobile-menu nav a span {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--quiet);
}

.mobile-actions {
  display: grid;
  gap: 14px;
  margin-top: auto;
  padding-top: 28px;
}

.mobile-actions a {
  font-size: 15px;
  color: var(--blue);
  text-decoration: none;
}

/* ---------- Changelog page ---------- */
.page-head {
  padding: 112px 0 44px;
  background: linear-gradient(180deg, #e8f1ff 0%, #f7faff 100%);
  border-bottom: 1px solid var(--line);
}

.page-head h1 {
  margin: 26px 0 18px;
  font-size: clamp(48px, 7vw, 96px);
  font-weight: 600;
  line-height: 0.95;
  letter-spacing: -0.06em;
  color: var(--ink);
}

.page-head p {
  max-width: 560px;
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.8;
}

.changelog-main {
  padding: 36px 0 88px;
  background: var(--paper-2);
}

.channel-tabs {
  display: flex;
  gap: 28px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 36px;
}

.channel-tab {
  padding: 0 0 12px;
  margin-bottom: -1px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.channel-tab:hover { color: var(--ink); }
.channel-tab[aria-selected="true"] { color: var(--ink); border-color: var(--blue); }

.changelog-content { max-width: 900px; }

.changelog-title {
  margin: 0 0 6px;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.changelog-sub {
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--quiet);
}

.changelog-list {
  display: grid;
  gap: 9px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.changelog-list li {
  position: relative;
  padding-left: 16px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.changelog-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 4px;
  height: 4px;
  background: var(--blue);
}

.changelog-list strong { color: var(--ink-2); font-weight: 600; }

.changelog-history { margin-top: 4px; }

.changelog-history summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-strong);
  font-size: 13px;
  color: var(--ink);
  list-style: none;
  cursor: pointer;
}

.changelog-history summary::-webkit-details-marker { display: none; }
.changelog-history summary:hover { color: var(--blue); border-color: var(--blue); }
.changelog-history summary svg { width: 13px; height: 13px; transition: transform 0.25s ease; }
.changelog-history[open] summary svg { transform: rotate(180deg); }

.history-inner {
  margin-top: 26px;
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.history-version {
  margin: 26px 0 4px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink-2);
}

.history-inner > .history-version:first-child { margin-top: 0; }
.history-inner .changelog-sub { margin-bottom: 10px; }
.history-inner .changelog-list { margin-bottom: 8px; }
.history-inner .changelog-list li { font-size: 13px; }

.ver-list {
  display: grid;
  gap: 6px;
  margin-top: 12px;
  max-height: 220px;
  overflow-y: auto;
  padding-right: 4px;
}

.ver-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
}

.ver-row a { color: var(--blue); text-decoration: none; }
.ver-row a:hover { text-decoration: underline; }
.ver-placeholder { padding: 8px 0; font-size: 12px; color: var(--quiet); }

/* ---------- Motion ---------- */
.hero-enter { animation: rise 0.85s cubic-bezier(0.22, 1, 0.36, 1) both; }
.d1 { animation-delay: 0.08s; }
.d2 { animation-delay: 0.16s; }
.d3 { animation-delay: 0.26s; }

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

html.has-reveal .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

html.has-reveal .reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-delay: 0ms !important;
    transition-duration: 0.001ms !important;
  }
  html.has-reveal .reveal { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .nav-links { gap: 22px; }
  .hero-lower { grid-template-columns: 340px 1fr; gap: 40px; }
  .section-head { grid-template-columns: 1fr 320px; gap: 40px; }
  .visual-plane { width: 170px; height: 170px; }
}

@media (max-width: 980px) {
  .nav-links { display: none; }
  .menu-button { display: inline-flex; }
  .hero-lower { grid-template-columns: 1fr; gap: 40px; }
  .hero-copy { max-width: 560px; }
  .hero-visual { margin-top: 8px; }
  .section-head { grid-template-columns: 1fr; gap: 18px; align-items: start; }
  .section-head > p { max-width: 520px; }
  .download-row { grid-template-columns: 1fr auto; gap: 18px 32px; }
  .dl-meta { grid-column: 1; }
  .dl-actions { grid-column: 2; grid-row: 1 / span 2; }
  .community-row { grid-template-columns: 1fr auto; }
  .community-links { grid-column: 1 / -1; flex-direction: row; align-items: center; }
}

@media (max-width: 760px) {
  .container { width: calc(100% - 40px); }
  .header-inner { width: calc(100% - 32px); height: 58px; }
  .hero { padding: 92px 0 48px; }
  .hero-fluid { inset: -12% -28%; filter: blur(48px); opacity: 0.72; }
  .fluid-b, .fluid-d { display: none; }
  .fluid-a { width: 80vw; height: 80vw; left: -28%; top: -8%; }
  .fluid-c { width: 80vw; height: 80vw; left: 26%; bottom: -30%; }
  .hero-title { margin-top: 18px; }
  .hero-slogan { font-size: 20px; margin-bottom: 12px; }
  .hero-desc { font-size: 14px; }
  .hero-actions { max-width: none; margin-top: 22px; }
  .hero-visual { margin-top: 32px; }
  .hero-desktop, .visual-plane { display: none; }
  .hero-phone {
    position: relative;
    left: auto;
    bottom: auto;
    width: 222px;
    margin-inline: auto;
    box-shadow: 0 18px 40px rgba(17, 18, 20, 0.14);
  }
  .hero-phone img { height: 430px; }
  .section { padding: 64px 0; }
  .section-head { margin-bottom: 30px; }
  .phone-grid {
    display: flex;
    gap: 16px;
    max-width: none;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    margin-inline: -20px;
    padding: 0 20px 6px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .phone-grid::-webkit-scrollbar { display: none; }
  .phone-tile { flex: 0 0 62%; scroll-snap-align: center; }
  .phone-shot { max-width: 210px; }
  .desktop-grid {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    margin-inline: -20px;
    padding: 0 20px 6px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .desktop-grid::-webkit-scrollbar { display: none; }
  .desktop-tile { flex: 0 0 86%; scroll-snap-align: center; }
  .swipe-hint { display: block; }
  .download-row {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 22px 0;
  }
  .dl-actions { grid-column: 1; grid-row: auto; justify-content: flex-start; flex-wrap: wrap; }
  .dl-platform h3 { font-size: 26px; }
  .community-row { grid-template-columns: 1fr; gap: 20px; }
  .community-qr { width: 84px; height: 84px; }
  .community-links { flex-direction: column; align-items: flex-start; }
  .page-head { padding: 92px 0 32px; }
  .changelog-main { padding: 26px 0 64px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
}

@media (max-width: 400px) {
  .hero-title { font-size: 42px; }
}