:root {
  --ink: #173247;
  --ink-soft: #3d5e72;
  --muted: #70899a;
  --blue: #18a9e6;
  --blue-dark: #087fb5;
  --blue-light: #68caf1;
  --blue-pale: #eaf8fe;
  --green: #20c77a;
  --green-dark: #12a762;
  --paper: #f5f9fc;
  --white: #ffffff;
  --line: #d9e9f1;
  --line-soft: #e9f1f5;
  --shadow: 0 20px 60px rgba(28, 79, 106, 0.1);
  --shadow-small: 0 10px 30px rgba(28, 79, 106, 0.08);
  --radius: 24px;
  --container: 1180px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

a:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(24, 169, 230, 0.35);
  outline-offset: 4px;
  border-radius: 8px;
}

h1,
h2,
h3,
p,
dl,
dd,
figure,
ol,
ul {
  margin-top: 0;
}

dd {
  margin-left: 0;
}

#intro,
#features,
#screens,
#install,
#faq,
#download {
  scroll-margin-top: 92px;
}

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

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid rgba(217, 233, 241, 0.86);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 5px 22px rgba(24, 73, 99, 0.04);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 11px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  box-shadow: 0 7px 16px rgba(24, 169, 230, 0.2);
}

.main-nav {
  display: flex;
  margin-left: auto;
  align-items: center;
  gap: 26px;
  color: var(--ink-soft);
  font-size: 15px;
}

.main-nav a {
  position: relative;
  padding-block: 22px;
  transition: color 0.2s ease;
}

.main-nav a::after {
  position: absolute;
  right: 50%;
  bottom: 14px;
  left: 50%;
  height: 2px;
  border-radius: 2px;
  background: var(--blue);
  content: "";
  transition: right 0.2s ease, left 0.2s ease;
}

.main-nav a:hover {
  color: var(--blue-dark);
}

.main-nav a:hover::after {
  right: 0;
  left: 0;
}

.header-download {
  display: inline-flex;
  min-height: 42px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  padding: 0 19px;
  border-radius: 12px;
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  box-shadow: 0 8px 20px rgba(24, 169, 230, 0.22);
  font-size: 14px;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.header-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 11px 24px rgba(24, 169, 230, 0.3);
}

.product-hero {
  position: relative;
  overflow: hidden;
  padding: 26px 0 34px;
  background:
    radial-gradient(circle at 15% 18%, rgba(82, 195, 239, 0.18), transparent 27%),
    radial-gradient(circle at 88% 32%, rgba(39, 194, 220, 0.14), transparent 30%),
    linear-gradient(180deg, #f4fbff 0%, #eef9fd 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.38;
  background-image:
    linear-gradient(rgba(38, 154, 202, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(38, 154, 202, 0.08) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 94%);
  mask-image: linear-gradient(to bottom, #000, transparent 94%);
  pointer-events: none;
}

.download-card {
  position: relative;
  display: grid;
  overflow: hidden;
  grid-template-columns: minmax(0, 1.16fr) minmax(320px, 0.84fr);
  min-height: 570px;
  border: 1px solid rgba(195, 226, 239, 0.94);
  border-radius: 30px 30px 0 0;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow);
}

.product-copy {
  position: relative;
  z-index: 2;
  min-width: 0;
  padding: 56px 58px 48px;
}

.product-heading {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 22px;
}

.product-heading > div {
  min-width: 0;
}

.app-icon {
  width: 112px;
  height: 112px;
  flex: 0 0 auto;
  border: 6px solid #eefaff;
  border-radius: 27px;
  box-shadow: 0 13px 30px rgba(24, 169, 230, 0.2);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.tag-row span {
  padding: 3px 10px;
  border: 1px solid #cdeaf6;
  border-radius: 999px;
  color: var(--blue-dark);
  background: var(--blue-pale);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.7;
}

.product-heading h1 {
  margin-bottom: 2px;
  color: #112c40;
  font-size: clamp(31px, 3.1vw, 43px);
  line-height: 1.25;
  letter-spacing: -0.045em;
  overflow-wrap: anywhere;
}

.product-heading h1 span {
  margin-left: 9px;
  color: var(--blue-dark);
  font-size: 18px;
  font-weight: 750;
  letter-spacing: 0;
}

.product-heading p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 17px;
}

.product-lead {
  max-width: 660px;
  margin: 25px 0 26px;
  color: #526f81;
  font-size: 16px;
  line-height: 1.9;
}

.product-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 28px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: #f8fcfe;
  gap: 16px 22px;
}

.product-meta div {
  min-width: 0;
}

.product-meta dt {
  margin-bottom: 2px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.product-meta dd {
  overflow: hidden;
  margin: 0;
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.download-actions {
  display: flex;
  align-items: stretch;
  gap: 12px;
}

.primary-download {
  display: inline-flex;
  min-width: 278px;
  min-height: 66px;
  align-items: center;
  justify-content: center;
  gap: 13px;
  padding: 8px 26px;
  border-radius: 15px;
  color: var(--white);
  background: linear-gradient(135deg, #28ce82, var(--green-dark));
  box-shadow: 0 12px 26px rgba(24, 183, 107, 0.23);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.primary-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 30px rgba(24, 183, 107, 0.31);
}

.download-icon {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 2px solid rgba(255, 255, 255, 0.75);
  border-radius: 50%;
  font-size: 21px;
  font-weight: 800;
  line-height: 1;
}

.primary-download > span:last-child {
  display: flex;
  flex-direction: column;
  line-height: 1.35;
}

.primary-download strong {
  font-size: 17px;
  font-weight: 800;
}

.primary-download small {
  margin-top: 3px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 12px;
}

.outline-link {
  display: inline-flex;
  min-height: 66px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid #bcddea;
  border-radius: 15px;
  color: var(--blue-dark);
  background: var(--white);
  font-size: 15px;
  font-weight: 700;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.outline-link:hover {
  border-color: var(--blue);
  background: var(--blue-pale);
}

.download-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.product-preview {
  position: relative;
  display: flex;
  overflow: hidden;
  min-height: 570px;
  align-items: flex-end;
  justify-content: center;
  background:
    radial-gradient(circle at 50% 45%, rgba(255, 255, 255, 0.96), rgba(205, 241, 252, 0.56) 44%, transparent 68%),
    linear-gradient(150deg, #e8f8fd 0%, #d6f1fc 100%);
}

.product-preview::before,
.product-preview::after {
  position: absolute;
  border: 1px solid rgba(24, 169, 230, 0.16);
  border-radius: 50%;
  content: "";
}

.product-preview::before {
  width: 440px;
  height: 440px;
  top: 5%;
  right: -38%;
}

.product-preview::after {
  width: 300px;
  height: 300px;
  bottom: -20%;
  left: -15%;
}

.preview-glow {
  position: absolute;
  width: 290px;
  height: 290px;
  top: 110px;
  left: calc(50% - 145px);
  border-radius: 50%;
  background: rgba(48, 191, 239, 0.2);
  filter: blur(42px);
  animation: glowPulse 4.5s ease-in-out infinite;
}

.phone-frame {
  position: relative;
  z-index: 2;
  width: 254px;
  height: 508px;
  overflow: hidden;
  border: 8px solid #caeffc;
  border-bottom: 0;
  border-radius: 44px 44px 0 0;
  background: #fff;
  box-shadow: 0 24px 54px rgba(27, 122, 164, 0.22);
  transform: translateY(26px) rotate(1.5deg);
  animation: phoneFloat 5.5s ease-in-out infinite;
}

.phone-frame::before {
  position: absolute;
  z-index: 2;
  width: 76px;
  height: 17px;
  top: 0;
  left: 50%;
  border-radius: 0 0 12px 12px;
  background: #c3e7f3;
  content: "";
  transform: translateX(-50%);
}

.phone-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.preview-badge {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  border: 1px solid rgba(191, 225, 239, 0.95);
  border-radius: 16px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 14px 34px rgba(38, 105, 137, 0.13);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.badge-fps {
  top: 108px;
  right: 22px;
  flex-direction: column;
  align-items: flex-start;
  padding: 14px 18px;
  line-height: 1.2;
  animation: badgeFloat 4.6s ease-in-out 0.5s infinite;
}

.badge-fps b {
  color: var(--blue-dark);
  font-size: 31px;
  line-height: 1;
}

.badge-fps span {
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
}

.badge-ready {
  bottom: 85px;
  left: 17px;
  gap: 10px;
  padding: 11px 15px;
  font-size: 12px;
  line-height: 1.45;
  animation: badgeFloat 5s ease-in-out 1.1s infinite;
}

.badge-ready i,
.online-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #26d885;
  box-shadow: 0 0 0 5px rgba(38, 216, 133, 0.12);
}

.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  align-items: start;
  gap: 28px;
  padding-top: 38px;
  padding-bottom: 54px;
}

.main-content {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  min-width: 0;
  gap: 24px;
}

.content-section,
.side-card {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-small);
}

.content-section {
  padding: 39px 42px 42px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 23px;
}

.section-title::before {
  width: 5px;
  height: 28px;
  flex: 0 0 auto;
  border-radius: 5px;
  background: linear-gradient(to bottom, var(--blue-light), var(--blue-dark));
  content: "";
}

.section-title span {
  order: 3;
  color: #a1b5c1;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.section-title h2 {
  margin-bottom: 0;
  color: var(--ink);
  font-size: 27px;
  line-height: 1.3;
  letter-spacing: -0.025em;
}

.content-section > p {
  margin-bottom: 15px;
  color: #506e80;
  font-size: 16px;
  line-height: 2;
}

.intro-highlight {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 17px;
  margin-top: 26px;
  padding: 18px 20px;
  border: 1px solid #ccebf6;
  border-radius: 15px;
  background: #effaff;
}

.intro-highlight strong {
  padding: 5px 11px;
  border-radius: 8px;
  color: var(--white);
  background: var(--blue);
  font-size: 13px;
  white-space: nowrap;
}

.intro-highlight p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 13px;
}

.feature-list article {
  display: flex;
  min-width: 0;
  gap: 15px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fbfdff;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.feature-list article:hover {
  border-color: #b7e3f3;
  box-shadow: 0 9px 24px rgba(24, 111, 150, 0.08);
  transform: translateY(-2px);
}

.feature-list article > b {
  display: grid;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 11px;
  color: var(--blue-dark);
  background: var(--blue-pale);
  font-size: 13px;
}

.feature-list h3,
.install-steps h3 {
  margin-bottom: 6px;
  color: var(--ink);
  font-size: 17px;
  line-height: 1.45;
}

.feature-list p,
.install-steps p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.section-desc {
  margin-top: -10px;
}

.screenshot-track {
  display: grid;
  max-width: 100%;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.screenshot-track figure {
  min-width: 0;
  margin-bottom: 0;
}

.screenshot-track figure > div {
  overflow: hidden;
  aspect-ratio: 9 / 16;
  border: 1px solid #cfe6f0;
  border-radius: 17px;
  background: #f0f9fd;
}

.screenshot-track img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.screenshot-track figure:hover img {
  transform: scale(1.025);
}

.screenshot-track figcaption {
  padding-top: 9px;
  color: var(--ink-soft);
  font-size: 13px;
  text-align: center;
}

.install-steps {
  display: grid;
  padding-left: 0;
  list-style: none;
  gap: 3px;
}

.install-steps li {
  position: relative;
  display: flex;
  gap: 17px;
  padding: 13px 0 20px;
}

.install-steps li:not(:last-child)::after {
  position: absolute;
  width: 1px;
  height: calc(100% - 40px);
  top: 52px;
  left: 20px;
  background: #cae6f1;
  content: "";
}

.install-steps li > span {
  display: grid;
  width: 41px;
  height: 41px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid #bee5f4;
  border-radius: 50%;
  color: var(--blue-dark);
  background: var(--blue-pale);
  font-size: 14px;
  font-weight: 800;
}

.notice-box {
  margin-top: 9px;
  padding: 17px 20px;
  border: 1px solid #f3dfaa;
  border-radius: 14px;
  background: #fffaf0;
}

.notice-box strong {
  display: block;
  margin-bottom: 3px;
  color: #9a6921;
  font-size: 14px;
}

.notice-box p {
  margin-bottom: 0;
  color: #7c6b4c;
  font-size: 14px;
}

.faq-list {
  display: grid;
  gap: 11px;
}

.faq-list details {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fbfdff;
}

.faq-list summary {
  display: flex;
  min-height: 64px;
  cursor: pointer;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 19px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 700;
  list-style: none;
}

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

.faq-list summary i {
  display: grid;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  color: var(--blue-dark);
  background: var(--blue-pale);
  font-size: 19px;
  font-style: normal;
  font-weight: 400;
  line-height: 1;
  transition: transform 0.2s ease;
}

.faq-list details[open] summary i {
  transform: rotate(45deg);
}

.faq-list details[open] summary {
  color: var(--blue-dark);
}

.faq-list details p {
  margin: 0 19px;
  padding: 0 0 18px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
}

.faq-list details p::before {
  display: block;
  height: 14px;
  content: "";
}

.sidebar {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 18px;
}

.side-card {
  padding: 24px;
}

.side-card h2 {
  margin-bottom: 18px;
  font-size: 19px;
  line-height: 1.4;
}

.info-card dl {
  margin-bottom: 0;
}

.info-card dl div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 13px;
}

.info-card dl div:last-child {
  border-bottom: 0;
}

.info-card dt {
  color: var(--muted);
}

.info-card dd {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  text-align: right;
}

.download-side {
  text-align: center;
}

.download-side img {
  width: 76px;
  height: 76px;
  margin: 0 auto 11px;
  border: 4px solid #e8f8fe;
  border-radius: 19px;
  box-shadow: 0 9px 24px rgba(24, 169, 230, 0.16);
}

.download-side h2 {
  margin-bottom: 0;
}

.download-side > p {
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 13px;
}

.download-side > a {
  display: flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  color: var(--white);
  background: linear-gradient(135deg, #28ce82, var(--green-dark));
  box-shadow: 0 9px 20px rgba(24, 183, 107, 0.19);
  font-size: 15px;
  font-weight: 800;
}

.download-side > small {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 13px;
  color: var(--muted);
  font-size: 12px;
}

.download-side .online-dot {
  width: 7px;
  height: 7px;
  box-shadow: none;
}

.version-card ul {
  display: grid;
  margin-bottom: 0;
  padding-left: 0;
  list-style: none;
  gap: 9px;
}

.version-card li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 13px;
  border-radius: 10px;
  background: #f5fafc;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 650;
}

.version-card small {
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
}

.bottom-download {
  padding: 46px 0;
  color: var(--white);
  background:
    radial-gradient(circle at 12% 10%, rgba(255, 255, 255, 0.2), transparent 32%),
    linear-gradient(125deg, #159fdc 0%, #0b86be 58%, #0877ab 100%);
}

.bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.bottom-inner > div > span {
  display: block;
  margin-bottom: 4px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 13px;
  font-weight: 700;
}

.bottom-inner h2 {
  margin-bottom: 3px;
  font-size: clamp(26px, 3.1vw, 36px);
  line-height: 1.3;
  letter-spacing: -0.035em;
}

.bottom-inner p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
}

.bottom-inner > a {
  display: inline-flex;
  min-width: 244px;
  min-height: 58px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  gap: 15px;
  padding: 0 25px;
  border-radius: 14px;
  color: var(--blue-dark);
  background: var(--white);
  box-shadow: 0 14px 30px rgba(0, 57, 84, 0.16);
  font-weight: 800;
  transition: transform 0.2s ease;
}

.bottom-inner > a:hover {
  transform: translateY(-2px);
}

.bottom-inner > a span {
  font-size: 20px;
}

.site-footer {
  padding: 32px 0;
  border-top: 1px solid #e6eff4;
  background: #fff;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(250px, 1fr) auto minmax(250px, 1fr);
  align-items: center;
  gap: 28px;
}

.footer-brand {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 11px;
}

.footer-brand img {
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  border-radius: 11px;
}

.footer-brand b {
  display: block;
  font-size: 14px;
  line-height: 1.4;
}

.footer-brand p,
.copyright {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.7;
}

.footer-inner nav {
  display: flex;
  gap: 19px;
  color: var(--ink-soft);
  font-size: 12px;
}

.footer-inner nav a:hover {
  color: var(--blue-dark);
}

.copyright {
  text-align: right;
}

@keyframes phoneFloat {
  0%, 100% { transform: translateY(26px) rotate(1.5deg); }
  50% { transform: translateY(17px) rotate(0.6deg); }
}

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

@keyframes glowPulse {
  0%, 100% { opacity: 0.7; transform: scale(0.94); }
  50% { opacity: 1; transform: scale(1.07); }
}

@media (max-width: 1060px) {
  .header-inner {
    gap: 20px;
  }

  .main-nav {
    gap: 17px;
    font-size: 14px;
  }

  .download-card {
    grid-template-columns: minmax(0, 1.12fr) minmax(290px, 0.88fr);
  }

  .product-copy {
    padding: 48px 40px 42px;
  }

  .content-layout {
    grid-template-columns: minmax(0, 1fr) 280px;
  }

  .content-section {
    padding: 35px 32px 38px;
  }

  .feature-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .main-nav {
    display: none;
  }

  .header-download {
    margin-left: auto;
  }

  .download-card {
    grid-template-columns: 1fr;
  }

  .product-preview {
    min-height: 500px;
  }

  .phone-frame {
    width: 238px;
    height: 476px;
  }

  .badge-fps {
    right: calc(50% - 250px);
  }

  .badge-ready {
    left: calc(50% - 250px);
  }

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

  .sidebar {
    position: static;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .side-card {
    min-width: 0;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .copyright {
    text-align: center;
  }
}

@media (max-width: 700px) {
  .container {
    width: min(calc(100% - 16px), var(--container));
  }

  .site-header {
    position: relative;
  }

  .header-inner {
    min-height: 66px;
  }

  .brand {
    min-width: 0;
    flex: 1 1 auto;
    font-size: 15px;
  }

  .brand span {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .brand img {
    width: 38px;
    height: 38px;
  }

  .header-download {
    flex: 0 0 auto;
    min-height: 38px;
    padding-inline: 13px;
    font-size: 12px;
    white-space: nowrap;
  }

  .product-hero {
    padding-top: 16px;
  }

  .download-card {
    min-height: 0;
    border-radius: 22px 22px 0 0;
  }

  .product-copy {
    padding: 30px 22px 28px;
  }

  .product-heading {
    align-items: flex-start;
    gap: 15px;
  }

  .app-icon {
    width: 78px;
    height: 78px;
    border-width: 4px;
    border-radius: 20px;
  }

  .tag-row {
    gap: 5px;
    margin-bottom: 5px;
  }

  .tag-row span {
    padding: 2px 7px;
    font-size: 10px;
  }

  .product-heading h1 {
    font-size: clamp(25px, 7.6vw, 34px);
  }

  .product-heading h1 span {
    display: block;
    margin: 2px 0 0;
    font-size: 15px;
  }

  .product-heading p {
    font-size: 13px;
    line-height: 1.55;
  }

  .product-lead {
    margin: 21px 0;
    font-size: 14px;
    line-height: 1.85;
  }

  .product-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 15px;
    gap: 13px 18px;
  }

  .product-meta dd {
    font-size: 14px;
  }

  .download-actions {
    flex-direction: column;
  }

  .primary-download,
  .outline-link {
    width: 100%;
    min-width: 0;
  }

  .primary-download {
    min-height: 62px;
  }

  .outline-link {
    min-height: 49px;
  }

  .download-note {
    line-height: 1.7;
  }

  .product-preview {
    min-height: 440px;
  }

  .phone-frame {
    width: 205px;
    height: 410px;
    border-width: 6px;
    border-bottom: 0;
    border-radius: 35px 35px 0 0;
  }

  .badge-fps {
    top: 88px;
    right: 13px;
    padding: 11px 13px;
  }

  .badge-fps b {
    font-size: 25px;
  }

  .badge-ready {
    bottom: 63px;
    left: 12px;
    padding: 9px 12px;
  }

  .content-layout {
    gap: 18px;
    padding-top: 24px;
    padding-bottom: 36px;
  }

  .main-content {
    gap: 18px;
  }

  .content-section,
  .side-card {
    border-radius: 18px;
  }

  .content-section {
    padding: 28px 20px 30px;
  }

  .section-title {
    flex-wrap: wrap;
    gap: 9px;
    margin-bottom: 19px;
  }

  .section-title::before {
    height: 24px;
  }

  .section-title h2 {
    font-size: 23px;
  }

  .section-title span {
    font-size: 9px;
  }

  .content-section > p {
    font-size: 14px;
    line-height: 1.9;
  }

  .intro-highlight {
    grid-template-columns: 1fr;
    gap: 9px;
    padding: 16px;
  }

  .intro-highlight strong {
    justify-self: start;
  }

  .feature-list {
    gap: 10px;
  }

  .feature-list article {
    gap: 12px;
    padding: 17px 15px;
  }

  .feature-list article > b {
    width: 35px;
    height: 35px;
  }

  .feature-list h3,
  .install-steps h3 {
    font-size: 16px;
  }

  .screenshot-track {
    display: flex;
    overflow-x: auto;
    padding: 2px 2px 8px;
    gap: 12px;
    scroll-padding-inline: 2px;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
    scrollbar-color: #addded #eef8fc;
  }

  .screenshot-track figure {
    flex: 0 0 min(70vw, 245px);
    scroll-snap-align: start;
  }

  .install-steps li {
    gap: 13px;
  }

  .faq-list summary {
    min-height: 60px;
    padding: 13px 15px;
    font-size: 14px;
  }

  .faq-list details p {
    margin-inline: 15px;
    font-size: 13px;
  }

  .sidebar {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .side-card {
    padding: 22px 20px;
  }

  .bottom-download {
    padding: 37px 0;
  }

  .bottom-inner {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .bottom-inner > a {
    width: 100%;
    min-width: 0;
  }

  .footer-inner nav {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 410px) {
  .container {
    width: min(calc(100% - 12px), var(--container));
  }

  .brand span {
    max-width: 122px;
  }

  .header-download {
    padding-inline: 10px;
    font-size: 11px;
  }

  .product-copy {
    padding-inline: 17px;
  }

  .product-heading {
    gap: 11px;
  }

  .app-icon {
    width: 69px;
    height: 69px;
  }

  .product-preview {
    min-height: 406px;
  }

  .phone-frame {
    width: 187px;
    height: 374px;
  }

  .badge-fps {
    right: 6px;
  }

  .badge-ready {
    left: 6px;
  }

  .content-section {
    padding-inline: 17px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* Download portal theme */
:root {
  --ink: #172c3e;
  --ink-soft: #435e70;
  --muted: #758b99;
  --blue: #119fd9;
  --blue-dark: #087cab;
  --blue-light: #5ec7ed;
  --blue-pale: #eaf7fc;
  --green: #20bf75;
  --green-dark: #13a560;
  --paper: #edf3f6;
  --line: #dbe5ea;
  --line-soft: #e8eef1;
  --shadow: 0 8px 22px rgba(29, 61, 80, 0.06);
  --shadow-small: 0 4px 14px rgba(29, 61, 80, 0.045);
  --radius: 12px;
}

body {
  background: var(--paper);
}

.site-header {
  position: relative;
  border-top: 4px solid var(--blue);
  border-bottom: 1px solid var(--line);
  background: #fff;
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.header-inner {
  min-height: 68px;
}

.brand img {
  border: 1px solid #d8edf5;
  border-radius: 9px;
  box-shadow: none;
}

.main-nav {
  gap: 28px;
  font-size: 14px;
}

.main-nav a {
  padding-block: 20px;
}

.main-nav a::after {
  bottom: 12px;
}

.header-download {
  border-radius: 6px;
  box-shadow: none;
}

.header-download:hover {
  box-shadow: none;
}

.product-hero {
  padding: 14px 0 0;
  background: var(--paper);
}

.hero-grid {
  display: none;
}

.download-card {
  grid-template-columns: minmax(0, 1fr) 350px;
  min-height: 0;
  border: 1px solid #d3e0e6;
  border-top: 4px solid var(--blue);
  border-radius: 10px;
  background: #fff;
  box-shadow: var(--shadow);
}

.product-copy {
  padding: 37px 43px 34px;
}

.product-heading {
  align-items: flex-start;
  gap: 20px;
}

.app-icon {
  width: 96px;
  height: 96px;
  border: 0;
  border-radius: 18px;
  box-shadow: none;
}

.tag-row {
  margin-bottom: 5px;
}

.tag-row span {
  padding: 2px 9px;
  border-color: #cae7f2;
  border-radius: 4px;
  font-weight: 650;
}

.product-heading h1 {
  font-size: clamp(30px, 3vw, 39px);
  letter-spacing: -0.035em;
}

.product-heading h1 span {
  font-size: 16px;
}

.product-heading p {
  font-size: 15px;
}

.product-lead {
  margin: 23px 0 22px;
  line-height: 1.85;
}

.product-meta {
  margin-bottom: 24px;
  padding: 16px 18px;
  border-color: #dce7eb;
  border-radius: 6px;
  background: #f6f8f9;
  gap: 14px 20px;
}

.primary-download {
  min-height: 60px;
  border-radius: 6px;
  background: linear-gradient(135deg, #1cc173, #109c59);
  box-shadow: none;
}

.primary-download:hover {
  box-shadow: none;
}

.outline-link {
  min-height: 60px;
  border-radius: 6px;
  background: #f8fafb;
}

.product-preview {
  min-height: 496px;
  padding: 28px 24px 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(145deg, #1d4a61, #15394e);
  background-size: 28px 28px, 28px 28px, auto;
}

.product-preview::before,
.product-preview::after,
.preview-glow {
  display: none;
}

.phone-frame {
  width: 210px;
  height: 430px;
  border: 5px solid #dff5fc;
  border-bottom: 0;
  border-radius: 28px 28px 0 0;
  box-shadow: 0 18px 40px rgba(24, 111, 150, 0.18);
  transform: translateY(10px);
  animation: none;
}

.phone-frame::before {
  width: 65px;
  height: 13px;
}

.preview-badge {
  border: 0;
  border-radius: 6px;
  box-shadow: 0 8px 22px rgba(24, 111, 150, 0.12);
  animation: none;
}

.badge-fps {
  top: 36px;
  right: 18px;
  padding: 11px 14px;
}

.badge-fps b {
  font-size: 27px;
}

.badge-ready {
  bottom: 46px;
  left: 18px;
  padding: 9px 12px;
}

.content-layout {
  gap: 22px;
  padding-top: 24px;
  padding-bottom: 42px;
}

.main-content {
  gap: 18px;
}

.content-section,
.side-card {
  border-color: #dde6ea;
  border-radius: 10px;
  box-shadow: var(--shadow-small);
}

.content-section {
  padding: 32px 35px 35px;
}

.section-title {
  gap: 10px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.section-title::before {
  width: 4px;
  height: 21px;
  border-radius: 1px;
}

.section-title h2 {
  font-size: 23px;
}

.section-title span {
  margin-left: auto;
  padding: 2px 6px;
  border-radius: 3px;
  background: #f0f4f6;
  font-size: 9px;
}

.intro-highlight {
  border-radius: 6px;
}

.intro-highlight strong {
  border-radius: 3px;
}

.feature-list {
  gap: 10px;
}

.feature-list article {
  padding: 18px;
  border-radius: 7px;
  background: #f8fafb;
}

.feature-list article:hover {
  box-shadow: none;
  transform: none;
}

.feature-list article > b {
  width: 34px;
  height: 34px;
  border-radius: 4px;
}

.screenshot-track {
  gap: 11px;
}

.screenshot-track figure > div {
  padding: 4px;
  border-color: #bed8e2;
  border-radius: 8px;
  background: #203e52;
}

.screenshot-track img {
  border-radius: 4px;
}

.install-steps li > span {
  border-radius: 5px;
}

.notice-box,
.faq-list details {
  border-radius: 7px;
}

.side-card {
  padding: 21px;
}

.sidebar {
  top: 22px;
  gap: 14px;
}

.download-side {
  color: #fff;
  border-color: #173f55;
  background:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(145deg, #1d4a61, #15394e);
  background-size: 22px 22px;
}

.download-side img {
  border-color: rgba(255, 255, 255, 0.5);
  border-radius: 12px;
  box-shadow: none;
}

.download-side h2,
.download-side > p,
.download-side > small {
  color: #fff;
}

.download-side > p,
.download-side > small {
  opacity: 0.78;
}

.download-side > a {
  border-radius: 5px;
  box-shadow: none;
}

.version-card li {
  border: 1px solid #e5ecef;
  border-radius: 5px;
  background: #f8fafb;
}

.bottom-download {
  padding: 38px 0;
  background: #126f99;
}

.bottom-inner > a {
  min-height: 54px;
  border-radius: 6px;
  box-shadow: none;
}

.site-footer {
  padding: 27px 0;
}

@media (max-width: 1060px) {
  .download-card {
    grid-template-columns: minmax(0, 1fr) 320px;
  }
}

@media (max-width: 900px) {
  .download-card {
    grid-template-columns: 1fr;
  }

  .product-preview {
    min-height: 440px;
  }

  .phone-frame {
    width: 202px;
    height: 414px;
  }
}

@media (max-width: 700px) {
  .site-header {
    border-top-width: 3px;
  }

  .content-layout {
    padding-bottom: 18px;
  }

  .header-inner {
    min-height: 62px;
    gap: 10px;
  }

  .header-download {
    border-radius: 5px;
  }

  .product-hero {
    padding: 4px 0 0;
  }

  .download-card {
    border-top-width: 3px;
    border-radius: 8px;
  }

  .product-copy {
    padding: 25px 18px 24px;
  }

  .product-heading {
    gap: 12px;
  }

  .app-icon {
    width: 72px;
    height: 72px;
    border-radius: 12px;
  }

  .tag-row span {
    padding-inline: 6px;
  }

  .product-heading h1 {
    font-size: clamp(24px, 7.5vw, 31px);
  }

  .product-heading h1 span {
    font-size: 14px;
  }

  .product-lead {
    margin-block: 20px;
  }

  .product-meta {
    border-radius: 5px;
  }

  .primary-download,
  .outline-link {
    border-radius: 5px;
  }

  .product-preview {
    min-height: 392px;
  }

  .phone-frame {
    width: 184px;
    height: 368px;
  }

  .badge-fps {
    top: 30px;
  }

  .badge-ready {
    bottom: 38px;
  }

  .content-section,
  .side-card {
    border-radius: 8px;
  }

  .content-section {
    padding: 25px 18px 28px;
  }

  .section-title {
    flex-wrap: nowrap;
  }

  .section-title h2 {
    font-size: 21px;
  }

  .feature-list article {
    border-radius: 6px;
  }

  .side-card {
    padding: 20px 18px;
  }
}

@media (max-width: 360px) {
  .header-download {
    padding-inline: 8px;
    font-size: 10px;
  }

  .brand {
    gap: 8px;
    font-size: 14px;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .app-icon {
    width: 64px;
    height: 64px;
  }

  .product-copy {
    padding-inline: 15px;
  }
}