:root {
  color-scheme: light;
  --ink: #142d38;
  --muted: #415961;
  --accent: #087f70;
  --line: #dce7e8;
  --paper: #fff;
  --wash: #f3f7f7;
  --radius: 20px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 28px;
}
body {
  margin: 0;
  background: var(--wash);
  color: var(--ink);
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  font-size: 17px;
  line-height: 1.8;
  -webkit-text-size-adjust: 100%;
}
a {
  color: var(--accent);
  text-underline-offset: 4px;
}
a:focus-visible,
summary:focus-visible {
  outline: 3px solid #d39312;
  outline-offset: 6px;
}
main {
  max-width: 1160px;
  margin: 0 auto 38px;
}
article {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 0 0 28px 28px;
  overflow: hidden;
}
p {
  margin: 0 0 20px;
}
p:last-child {
  margin-bottom: 0;
}
h1,
h2,
h3 {
  line-height: 1.24;
  letter-spacing: -0.035em;
  text-wrap: balance;
}
h1 {
  font-size: clamp(32px, 3.4vw, 46px);
  font-weight: 800;
  margin: 0 0 24px;
  max-width: 640px;
}
h2 {
  font-size: clamp(26px, 2.5vw, 34px);
  margin: 0 0 24px;
  max-width: 820px;
}
h3 {
  font-size: 23px;
  margin: 32px 0 16px;
}
section {
  scroll-margin-top: 24px;
}
.hero {
  padding: 52px 48px 36px;
  background:
    radial-gradient(ellipse at 98% 0%, #1b535b 0%, transparent 62%), #102a35;
  color: #f8fcfc;
}
.hero-row {
  display: grid;
  grid-template-columns: 1.12fr 1fr;
  gap: 40px;
  align-items: center;
}
.hero-copy p {
  color: #d5e4e6;
  font-size: 17px;
  line-height: 1.85;
}
.download-button {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 12px 25px;
  border-radius: 12px;
  background: var(--accent);
  border: 1px solid transparent;
  color: white;
  text-decoration: none;
  font-size: 16px;
  font-weight: 750;
  line-height: 1.4;
  box-shadow: 0 5px 0 #075f5512;
  transition:
    background 0.15s,
    transform 0.15s;
}
.download-button:hover {
  background: #06685c;
  transform: translateY(-1px);
}
.hero .download-button {
  background: #84e6c9;
  color: #102a35;
}
.hero .download-button:hover {
  background: #a4f2dc;
}
.screenshot {
  display: block;
  line-height: 0;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid #17364326;
  background: #14232b;
  max-width: 100%;
}
.screenshot img {
  display: block;
  width: 100%;
  height: auto;
}
.hero-image {
  border: 6px solid #ffffff20;
  box-shadow: 0 20px 36px #0003;
  transform: rotate(-1deg);
  border-radius: 18px;
}
.facts {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid #ffffff26;
}
.facts table {
  width: 100%;
  border-collapse: collapse;
}
.facts tbody {
  display: grid;
  grid-template-columns: 1.65fr 1fr 1fr 0.65fr 1fr;
  gap: 20px;
}
.facts tr {
  display: flex;
  flex-direction: column;
  text-align: left;
}
.facts th {
  font-size: 12px;
  font-weight: 500;
  color: #b9cdd2;
  letter-spacing: 0.025em;
}
.facts td {
  font-size: 15px;
  font-weight: 650;
  padding: 3px 0;
}
.article-body {
  max-width: 976px;
  margin: auto;
  padding: 14px 40px 64px;
}
.content-section,
.features-section,
.download-section {
  padding: 46px 0;
  border-bottom: 1px solid var(--line);
}
section:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.download-section {
  margin: 20px -22px 0;
  padding: 34px 22px 36px;
  background: #f4faf8;
  border: 1px solid #d3e6df;
  border-radius: var(--radius);
}
.download-section > .download-button {
  margin: 0 0 26px;
}
.steps {
  padding-left: 28px;
  margin: 18px 0 24px;
}
.steps li {
  padding-left: 9px;
  margin: 10px 0;
}
.steps li::marker {
  color: var(--accent);
  font-weight: 750;
}
.install-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  padding: 22px 35px;
  background: #e9f1ed;
  border-radius: 16px;
  margin: 28px 0;
}
.install-gallery .screenshot {
  max-width: 190px;
  width: 100%;
  margin: auto;
  box-shadow: 0 8px 18px #152d3510;
}
.permission-gallery {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 140px;
  align-items: center;
  gap: 24px;
  margin: 28px 0;
}
.permission-phone {
  width: 140px;
  justify-self: center;
}
.settings-image {
  max-width: 800px;
  margin: 26px auto;
}
.feature-card {
  margin: 14px 0;
  border: 1px solid var(--line);
  border-left: 4px solid #67bbaa;
  background: linear-gradient(115deg, #f5faf9, #fff 65%);
  border-radius: 14px;
  padding: 24px 26px;
}
.feature-card .feature-title {
  font-size: 21px;
  line-height: 1.35;
  font-weight: 750;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}
.feature-card p {
  color: #304a54;
}
.supported {
  list-style-position: inside;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 28px;
  margin: 24px 0 0;
  padding: 8px 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--wash);
}
.supported li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.supported li::marker {
  color: var(--accent);
}
.supported li:nth-last-child(-n + 2) {
  border-bottom: 0;
}
.info-box {
  background: #edf6f3;
  border: 1px solid #cee2da;
  border-left: 4px solid var(--accent);
  border-radius: 4px 12px 12px 4px;
  padding: 19px 22px;
  margin: 24px 0;
  color: #244c43;
}
#faqs > h3 {
  font-size: 32px;
  margin: 0 0 24px;
}
.faq {
  border: 1px solid var(--line);
  border-radius: 14px;
  margin: 12px 0;
  background: #fff;
}
.faq summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 22px 60px 22px 23px;
  line-height: 1.5;
  border-radius: 14px;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary h3,
.faq summary strong {
  margin: 0;
  display: block;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.5;
  text-wrap: initial;
}
.faq summary::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 20px;
  font-size: 23px;
  line-height: 30px;
  color: var(--accent);
}
.faq[open] summary::after {
  content: "−";
}
.faq[open] {
  background: #f6faf9;
  border-color: #b8d8cc;
}
.faq-answer {
  padding: 0 23px 24px;
}
.faq summary:hover {
  background: #eef6f3;
}
@media (min-width: 760px) {
  #section-57 > .steps,
  #section-78 > .steps {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 32px;
  }
}
@media (max-width: 1000px) {
  main {
    margin: 0 18px 38px;
  }
  .hero {
    padding: 36px 30px 28px;
  }
  .hero-row {
    gap: 26px;
  }
  h1 {
    font-size: 35px;
  }
  .facts tbody {
    gap: 12px;
  }
}
@media (max-width: 760px) {
  body {
    font-size: 16px;
    line-height: 1.8;
  }
  main {
    margin: 0;
  }
  article {
    border: 0;
    border-radius: 0;
  }
  .hero {
    padding: 35px 22px 28px;
  }
  .hero-row {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .hero-copy p {
    font-size: 16px;
  }
  h1 {
    font-size: 36px;
    line-height: 1.15;
    max-width: 560px;
  }
  .hero-image {
    transform: none;
    width: 100%;
    max-width: 580px;
    margin: auto;
  }
  .facts {
    margin-top: 28px;
    padding-top: 20px;
  }
  .facts tbody {
    grid-template-columns: 1fr 1fr;
    gap: 14px 22px;
  }
  .facts tr:first-child {
    grid-column: 1/-1;
  }
  .article-body {
    padding: 0 22px 38px;
  }
  .content-section,
  .features-section {
    padding: 32px 0;
  }
  h2 {
    font-size: 27px;
    line-height: 1.25;
  }
  h3 {
    font-size: 22px;
  }
  .download-section {
    margin: 16px -10px 0;
    padding: 25px 14px;
  }
  .install-gallery {
    padding: 14px 10px;
    gap: 10px;
    margin: 24px 0;
  }
  .permission-gallery {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .permission-phone {
    width: 160px;
  }
  .feature-card {
    padding: 21px 19px;
  }
  .supported {
    grid-template-columns: 1fr;
    padding: 8px 18px;
  }
  .supported li:nth-last-child(2) {
    border-bottom: 1px solid var(--line);
  }
  .info-box {
    padding: 17px 18px;
  }
  .faq summary {
    padding: 19px 48px 19px 18px;
  }
  .faq summary::after {
    right: 17px;
    top: 17px;
  }
  .faq-answer {
    padding: 0 18px 20px;
  }
}

/* Support and developer box */
.support-section {
  margin-top: 28px;
  padding: 26px 28px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #f8fbfa;
}
.support-section h3 {
  margin: 0 0 10px;
}
.support-section p {
  margin: 0;
}
.developer-box {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 28px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}
.developer-box img {
  width: 76px;
  height: 76px;
  flex: 0 0 76px;
  border-radius: 50%;
  object-fit: cover;
}
.developer-box h3,
.developer-box p {
  margin: 0;
}
.developer-box h3 {
  font-size: 1.15rem;
  line-height: 1.35;
}
.developer-box h3 a {
  color: var(--ink);
  text-decoration: none;
}
.developer-box p {
  color: var(--muted);
}
.developer-github {
  display: inline-block;
  margin-top: 3px;
  font-size: 0.92rem;
  font-weight: 700;
}
@media (max-width: 520px) {
  .support-section {
    padding: 22px;
  }
  .developer-box {
    align-items: flex-start;
    padding: 18px;
  }
  .developer-box img {
    width: 64px;
    height: 64px;
    flex-basis: 64px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .download-button {
    transition: none;
  }
}
@media print {
  body,
  article {
    background: white;
    color: black;
  }
  main {
    margin: 0;
    max-width: none;
  }
  .hero {
    background: white;
    color: black;
  }
  .hero-copy p,
  .facts th {
    color: black;
  }
  .hero-image {
    transform: none;
  }
  .download-button {
    display: none;
  }
  .article-body {
    max-width: none;
    padding: 0;
  }
  .feature-card,
  .info-box {
    break-inside: avoid;
  }
  .faq > .faq-answer {
    display: block !important;
  }
  .screenshot {
    max-width: 350px;
  }
  .install-gallery {
    max-width: 450px;
  }
  .facts {
    border-color: #ccc;
  }
}
/* Shared header and footer. Edit their marked sections in index.html. */
:root {
  --accent: #087c69;
  --focus: #bd8200;
}
body {
  background: linear-gradient(180deg, #edf4f2 0, #f6f8f7 650px);
}
.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 20;
  padding: 12px 18px;
  background: white;
  border: 2px solid var(--accent);
  border-radius: 8px;
}
.skip-link:focus {
  top: 12px;
}
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: 1160px;
  margin: auto;
  min-height: 88px;
  display: flex;
  align-items: center;
  gap: 26px;
  padding: 12px 8px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
  line-height: 1.2;
  flex-shrink: 0;
}
.brand img {
  width: 54px;
  height: 54px;
  border: 1px solid #e0e9e5;
  border-radius: 12px;
  object-fit: contain;
  background: white;
}
.brand b {
  font-size: 18px;
  letter-spacing: -0.035em;
  max-width: 130px;
}
.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 25px;
  margin-left: auto;
}
.desktop-nav a {
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  color: #3e535b;
  padding: 10px 0;
}
.desktop-nav a:hover {
  color: var(--accent);
}
.header-download {
  padding: 11px 17px;
  background: #e7f5ee;
  border: 1px solid #cfe7db;
  border-radius: 10px;
  color: #12644f;
  text-decoration: none;
  font-weight: 750;
  font-size: 14px;
  white-space: nowrap;
}
.header-download:hover {
  background: #d8edde;
}
.mobile-menu {
  display: none;
}

/* About Us */
.about-page { padding: 52px 48px 64px; }
.about-intro { max-width: 820px; }
.official-note { margin: 28px 0 44px; padding: 17px 20px; border: 1px solid #cfe4dc; border-left: 4px solid var(--accent); border-radius: 5px 13px 13px 5px; background: #edf7f3; color: #214d43; }
.developer-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin: 24px 0 28px; }
.developer-card { min-width: 0; padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: linear-gradient(145deg, #f5faf8, #fff 70%); }
.developer-profile { display: inline-flex; align-items: center; gap: 14px; color: var(--ink); text-decoration: none; }
.developer-profile:hover h3 { color: var(--accent); }
.developer-profile img { width: 68px; height: 68px; border-radius: 50%; border: 3px solid #fff; box-shadow: 0 0 0 1px #d7e4df; object-fit: cover; background: #e8f0ed; }
.developer-profile h3 { margin: 0 0 2px; font-size: 20px; overflow-wrap: anywhere; }
.github-label { display: block; color: #60727a; font-size: 13px; line-height: 1.4; }
.developer-card p { margin-top: 20px; color: #39515a; font-size: 16px; line-height: 1.7; }
.about-section { max-width: 900px; padding-top: 40px; margin-top: 40px; border-top: 1px solid var(--line); }
.about-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.about-links a { padding: 9px 14px; border: 1px solid #cfe4dc; border-radius: 9px; background: #f1f8f5; text-decoration: none; font-weight: 650; font-size: 14px; }
@media (max-width: 860px) { .developer-grid { grid-template-columns: 1fr; } }
@media (max-width: 760px) { .about-page { padding: 35px 22px 44px; } .official-note { margin: 24px 0 34px; } .about-section { padding-top: 32px; margin-top: 32px; } }
main {
  margin-top: 0;
}
article {
  box-shadow: 0 14px 60px #163b3510;
}
.hero {
  position: relative;
  padding-top: 48px;
  border-top: 0;
}
.hero h1 {
  letter-spacing: -0.045em;
}
.hero-image {
  border-width: 5px;
  transform: none;
}
.hero .download-button {
  min-width: 196px;
}
.article-body {
  padding-top: 26px;
}
.table-of-contents {
  border: 1px solid #d8e6df;
  border-radius: 14px;
  background: #f7faf8;
}
.table-of-contents > summary {
  cursor: pointer;
  padding: 16px 22px;
  font-weight: 700;
  color: #275c4d;
  font-size: 15px;
  list-style-position: inside;
}
.table-of-contents[open] > summary {
  border-bottom: 1px solid var(--line);
}
.table-of-contents ol {
  margin: 0;
  padding: 18px 22px 20px;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 24px;
}
.table-of-contents li {
  font-size: 14px;
  line-height: 1.55;
}
.table-of-contents a {
  display: block;
  text-decoration: none;
  color: #355e51;
  padding: 5px 0;
}
.table-of-contents a:hover {
  text-decoration: underline;
}
.table-of-contents .toc-sub {
  padding-left: 16px;
  border-left: 2px solid #d5e6dc;
}
.content-section > h2,
.features-section > h2,
.download-section > h2 {
  position: relative;
  padding-left: 18px;
  letter-spacing: -0.035em;
}
.content-section > h2::before,
.features-section > h2::before,
.download-section > h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.14em;
  bottom: 0.12em;
  width: 4px;
  border-radius: 4px;
  background: #198e70;
}
.content-section > h3:not(:first-child),
.download-section > h3 {
  padding-top: 8px;
}
.feature-card {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  align-items: center;
  gap: 26px;
  padding: 25px 28px;
  border-left: 1px solid var(--line);
  border-radius: 18px;
  background: white;
  box-shadow: 0 4px 18px #163b3504;
}
.feature-card:nth-of-type(even) {
  background: #f8fbfa;
}
.feature-visual {
  width: 120px;
  height: 120px;
  border: 1px solid #e0e9e4;
  border-radius: 18px;
  background: white;
  overflow: hidden;
  display: grid;
  place-items: center;
}
.feature-visual img {
  width: 100%;
  height: auto;
  display: block;
}
.feature-symbol {
  background: #edf6f1;
  color: #117359;
  border-color: #d2e5da;
}
.feature-copy {
  min-width: 0;
}
.feature-card .feature-title {
  font-size: 22px;
  margin: 0 0 10px;
  color: #153b30;
}
.feature-copy p:not(.feature-title) {
  font-size: 16px;
  line-height: 1.85;
}
.site-footer {
  max-width: 1160px;
  margin: 0 auto 36px;
  background: #102a35;
  color: #e0eeee;
  border-radius: 24px;
  border: 1px solid #234750;
  padding: 35px 40px 20px;
}
.footer-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.site-footer .brand {
  color: #fff;
}
.site-footer .brand img {
  width: 64px;
  height: 64px;
}
.site-footer .brand b {
  font-size: 20px;
  max-width: 150px;
}
.site-footer nav {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 12px 26px;
}
.site-footer nav a {
  font-size: 14px;
  text-decoration: none;
  color: #d7e9e7;
}
.site-footer nav a:hover {
  text-decoration: underline;
  color: #89e2bf;
}
.footer-bottom {
  display: flex;
  justify-content: flex-end;
  border-top: 1px solid #ffffff20;
  margin-top: 28px;
  padding-top: 16px;
}
.back-top {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  color: #a5daca;
  text-decoration: none;
}
.back-top:hover {
  color: white;
}
@media (max-width: 1200px) {
  .header-inner {
    padding-left: 26px;
    padding-right: 26px;
  }
  .site-footer {
    margin-left: 18px;
    margin-right: 18px;
  }
}
@media (max-width: 950px) {
  .header-inner {
    gap: 18px;
  }
  .desktop-nav {
    gap: 16px;
  }
  .desktop-nav a {
    font-size: 13px;
  }
  .header-download {
    padding: 10px 12px;
  }
  .brand b {
    font-size: 16px;
  }
  .feature-card {
    grid-template-columns: 100px minmax(0, 1fr);
    gap: 22px;
  }
  .feature-visual {
    width: 100px;
    height: 100px;
  }
}
@media (max-width: 760px) {
  .header-inner {
    padding: 12px 18px;
    min-height: 76px;
    gap: 12px;
    flex-wrap: wrap;
  }
  .brand img {
    width: 44px;
    height: 44px;
    border-radius: 10px;
  }
  .brand b {
    font-size: 16px;
    max-width: 112px;
  }
  .desktop-nav,
  .header-download {
    display: none;
  }
  .mobile-menu {
    display: block;
    margin-left: auto;
  }
  .mobile-menu > summary {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    list-style: none;
    font-size: 14px;
    font-weight: 650;
    border: 1px solid var(--line);
    padding: 9px 11px;
    border-radius: 9px;
  }
  .mobile-menu > summary::-webkit-details-marker {
    display: none;
  }
  .mobile-menu[open] {
    flex-basis: 100%;
    margin: 0;
  }
  .mobile-menu[open] > summary {
    width: max-content;
    margin-left: auto;
  }
  .mobile-menu nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    margin-top: 10px;
    padding: 10px;
    background: #f2f7f4;
    border-radius: 12px;
  }
  .mobile-menu nav a {
    font-size: 14px;
    text-decoration: none;
    color: #1a5947;
    padding: 10px 8px;
    border-radius: 6px;
  }
  .mobile-menu nav a:hover {
    background: #deece3;
  }
  main {
    margin: 0;
  }
  .hero {
    padding-top: 33px;
  }
  .article-body {
    padding-top: 22px;
  }
  .table-of-contents ol {
    grid-template-columns: 1fr;
    padding: 12px 18px;
  }
  .feature-card {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 16px;
    padding: 20px;
    border-radius: 16px;
  }
  .feature-visual {
    width: 72px;
    height: 72px;
    border-radius: 13px;
  }
  .feature-symbol svg {
    width: 45px;
    height: 45px;
  }
  .feature-copy {
    display: contents;
  }
  .feature-card .feature-title {
    grid-column: 2;
    align-self: center;
    margin: 0;
    font-size: 21px;
  }
  .feature-copy p:not(.feature-title) {
    grid-column: 1/-1;
    margin: 0;
    font-size: 16px;
  }
  .site-footer {
    margin: 0;
    border-radius: 0;
    padding: 30px 22px 20px;
    border: 0;
  }
  .footer-main {
    flex-direction: column;
    align-items: flex-start;
    gap: 26px;
  }
  .site-footer nav {
    grid-template-columns: 1fr 1fr;
    width: 100%;
    gap: 16px;
  }
  .footer-bottom {
    justify-content: flex-start;
  }
  .site-footer .brand b {
    max-width: none;
    font-size: 18px;
  }
  .site-footer .brand img {
    width: 52px;
    height: 52px;
  }
  .content-section > h2,
  .features-section > h2,
  .download-section > h2 {
    padding-left: 15px;
  }
}
@media print {
  .site-header,
  .site-footer,
  .table-of-contents,
  .skip-link {
    display: none;
  }
  .feature-card {
    box-shadow: none;
  }
  .feature-visual {
    width: 72px;
    height: 72px;
  }
  article {
    box-shadow: none;
  }
}
/* Requirements and setup guides: distinct layouts without repeated note boxes. */
.requirements-panel {
  border: 1px solid #cedce4;
  background: #f5f8fb;
  border-radius: 20px;
  overflow: hidden;
  padding: 30px;
}
.requirements-panel > h2 {
  font-size: 30px;
  margin: 0 0 20px;
  color: #17384a;
}
.minimum-requirement {
  font-size: 20px;
  font-weight: 750;
  line-height: 1.5;
  color: #fff;
  background: #193e50;
  padding: 20px 24px;
  margin: 0 -30px 26px;
  border-left: 0;
}
.requirements-panel > p {
  max-width: 760px;
}
.requirements-list-label {
  font-weight: 700;
  margin-top: 26px;
  margin-bottom: 8px;
}
.requirement-factors {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 28px;
  padding: 0 0 0 20px;
  margin: 0 0 22px;
}
.requirement-factors li {
  padding: 10px 0 10px 4px;
  border-bottom: 1px solid #dbe3e9;
}
.requirement-factors li::marker {
  color: #53788b;
}
.requirements-summary {
  border-top: 1px solid #cedce4;
  padding-top: 20px;
  margin: 20px 0 0;
  color: #395364;
}
.install-guide {
  padding-top: 38px;
}
.install-guide > h3 {
  font-size: 27px;
  line-height: 1.3;
  margin: 0 0 20px;
  max-width: 760px;
}
.instruction-flow {
  padding: 0 0 0 38px;
  margin: 26px 0;
  list-style: decimal;
}
.instruction-flow > li {
  padding: 20px 22px;
  margin: 0 0 12px;
  background: #fafbfb;
  border: 1px solid #dce4e6;
  border-radius: 12px;
}
.instruction-flow > li::marker {
  font-size: 20px;
  font-weight: 750;
  color: #244f63;
}
.instruction-flow p {
  margin: 0 0 12px;
}
.instruction-flow p:last-child {
  margin: 0;
}
.loader-options {
  font-weight: 650;
  color: #204c60;
}
.compatibility-explanation {
  padding: 20px 0 0;
  margin-top: 24px;
  border-top: 1px solid #dce4e6;
  color: #465b64;
}
.runtime-choices {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  list-style: none;
  padding: 0;
  margin: 22px 0;
  border: 1px solid #d5e2e8;
  border-radius: 12px;
  overflow: hidden;
  background: #f5f8fa;
}
.runtime-choices li {
  padding: 18px 16px;
  text-align: center;
  font-weight: 700;
  color: #244759;
  border-right: 1px solid #d5e2e8;
}
.runtime-choices li:last-child {
  border: 0;
}
.memory-example {
  padding: 24px 28px;
  margin: 26px 0;
  background: #f5f6f8;
  border-radius: 14px;
  border: 1px solid #e0e4e8;
}
.memory-example p:first-child {
  font-weight: 600;
  color: #2c4859;
}
.memory-example p:last-child {
  margin: 0;
}
.closing-advice {
  color: #405460;
  margin-top: 22px;
}
.resolution-example {
  margin: 26px 0 0;
  padding: 24px 0 0;
  border-top: 2px solid #d7e1e7;
}
.resolution-example p:first-child {
  font-size: 19px;
  font-weight: 650;
  color: #294959;
}
.device-caution {
  padding: 4px 0 4px 20px;
  margin: 26px 0;
  border-left: 3px solid #ac8243;
  color: #5b5140;
}
.safety-panel {
  border-top: 1px solid #dce4e6;
  margin-top: 34px;
  padding-top: 26px;
}
.safety-panel h3 {
  margin: 0 0 18px;
}
.safety-panel p:last-child {
  margin: 0;
}
@media (max-width: 760px) {
  .requirements-panel {
    padding: 22px 20px;
    border-radius: 16px;
  }
  .requirements-panel > h2 {
    font-size: 26px;
  }
  .minimum-requirement {
    margin-left: -20px;
    margin-right: -20px;
    padding: 18px 20px;
    font-size: 18px;
  }
  .requirement-factors {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .install-guide {
    padding-top: 30px;
  }
  .install-guide > h3 {
    font-size: 24px;
  }
  .instruction-flow {
    padding-left: 29px;
  }
  .instruction-flow > li {
    padding: 17px 16px;
  }
  .instruction-flow > li::marker {
    font-size: 17px;
  }
  .runtime-choices {
    grid-template-columns: 1fr 1fr;
  }
  .runtime-choices li:nth-child(2) {
    border-right: 0;
  }
  .runtime-choices li:nth-child(-n + 2) {
    border-bottom: 1px solid #d5e2e8;
  }
  .memory-example {
    padding: 21px;
  }
  .resolution-example p:first-child {
    font-size: 18px;
  }
  .device-caution {
    padding-left: 15px;
  }
}
@media print {
  .requirements-panel,
  .memory-example,
  .instruction-flow > li {
    background: white;
  }
  .minimum-requirement {
    background: #eee;
    color: black;
  }
  .instruction-flow > li {
    break-inside: avoid;
  }
}
/* Compact header connection and consistent heading hierarchy. */
main {
  margin-top: 0;
  margin-bottom: 38px;
}
article {
  border-top: 0;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}
.hero {
  border-top: 0;
  padding-top: 34px;
  padding-bottom: 28px;
}
.header-inner {
  min-height: 76px;
  padding-top: 8px;
  padding-bottom: 8px;
}
.site-header {
  border-bottom: 0;
}
.hero-row {
  gap: 30px;
}
.hero h1 {
  margin-bottom: 18px;
}
.hero-copy p {
  margin-bottom: 20px;
}
.facts {
  margin-top: 26px;
  padding-top: 18px;
}
.article-body {
  padding-top: 20px;
  padding-bottom: 38px;
}
p {
  margin-bottom: 16px;
}
.content-section,
.features-section {
  padding: 32px 0;
}
.download-section {
  margin-top: 10px;
  padding-top: 26px;
  padding-bottom: 26px;
}
.article-body h2.section-title {
  position: relative;
  font-size: clamp(26px, 2.5vw, 32px);
  line-height: 1.28;
  letter-spacing: -0.035em;
  font-weight: 750;
  color: #17384a;
  padding-left: 17px;
  margin: 0 0 19px;
}
.article-body h2.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.15em;
  bottom: 0.12em;
  width: 4px;
  border-radius: 3px;
  background: #198e70;
}
.article-body h3.subsection-title,
#faqs > h3.subsection-title {
  font-size: 23px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: #294f63;
  margin: 24px 0 16px;
  padding: 0 0 10px;
  border-bottom: 1px solid #d8e3e8;
  max-width: none;
  text-wrap: balance;
}
.install-guide > h3.subsection-title,
.safety-panel > h3.subsection-title,
#faqs > h3.subsection-title {
  margin-top: 0;
}
.feature-card {
  margin: 12px 0;
  padding-top: 21px;
  padding-bottom: 21px;
  gap: 22px;
}
.feature-card h3.feature-title {
  font-size: 21px;
  color: #294f63;
}
.feature-copy p:not(.feature-title) {
  line-height: 1.75;
}
.steps {
  margin-top: 14px;
  margin-bottom: 18px;
}
.steps li {
  margin: 8px 0;
}
.install-gallery {
  margin: 20px 0;
  padding-top: 18px;
  padding-bottom: 18px;
}
.permission-gallery {
  margin: 22px 0;
}
.settings-image {
  margin: 20px auto;
}
.requirements-panel {
  padding: 25px;
}
.minimum-requirement {
  margin-left: -25px;
  margin-right: -25px;
  margin-bottom: 20px;
  padding-top: 16px;
  padding-bottom: 16px;
}
.requirements-list-label {
  margin-top: 20px;
}
.requirement-factors {
  margin-bottom: 18px;
}
.requirements-summary {
  margin-top: 16px;
  padding-top: 16px;
}
.install-guide {
  padding-top: 28px;
}
.instruction-flow {
  margin: 18px 0;
}
.instruction-flow > li {
  padding: 16px 20px;
  margin-bottom: 10px;
}
.compatibility-explanation {
  margin-top: 18px;
  padding-top: 16px;
}
.runtime-choices {
  margin: 18px 0;
}
.memory-example {
  margin: 20px 0;
  padding: 20px 24px;
}
.resolution-example {
  margin-top: 20px;
  padding-top: 18px;
}
.closing-advice {
  margin-top: 18px;
}
.device-caution {
  margin: 20px 0;
}
.safety-panel {
  margin-top: 26px;
  padding-top: 22px;
}
.faq {
  margin: 10px 0;
}
.faq summary {
  padding-top: 18px;
  padding-bottom: 18px;
}
.faq summary::after {
  top: 16px;
}
.faq-answer {
  padding-bottom: 20px;
}
.site-footer {
  padding-top: 28px;
}
.footer-bottom {
  margin-top: 22px;
}
@media (max-width: 760px) {
  main {
    margin: 0;
  }
  article {
    border: 0;
    border-radius: 0;
  }
  .header-inner {
    min-height: 68px;
    padding-top: 7px;
    padding-bottom: 7px;
  }
  .hero {
    padding-top: 26px;
    padding-bottom: 24px;
  }
  .hero-row {
    gap: 24px;
  }
  .article-body {
    padding-top: 18px;
    padding-bottom: 28px;
  }
  .content-section,
  .features-section {
    padding: 26px 0;
  }
  .download-section {
    padding-top: 22px;
    padding-bottom: 22px;
  }
  .article-body h2.section-title {
    font-size: 26px;
    margin-bottom: 17px;
    padding-left: 15px;
  }
  .article-body h3.subsection-title,
  #faqs > h3.subsection-title {
    font-size: 22px;
    margin-bottom: 14px;
  }
  .feature-card {
    padding: 17px;
    gap: 14px;
  }
  .requirements-panel {
    padding: 20px 18px;
  }
  .minimum-requirement {
    margin-left: -18px;
    margin-right: -18px;
    padding-left: 18px;
    padding-right: 18px;
  }
  .install-guide {
    padding-top: 24px;
  }
  .instruction-flow > li {
    padding: 15px;
  }
  .memory-example {
    padding: 18px;
  }
  .faq summary {
    padding-top: 17px;
    padding-bottom: 17px;
  }
  .faq summary::after {
    top: 15px;
  }
  .site-footer {
    padding-top: 26px;
  }
}

.section-image {
  width: 100%;
  max-width: 800px;
  margin: 24px auto 0;
  box-shadow: 0 10px 28px #163b3512;
}
.safety-image {
  max-width: 800px;
}
@media (max-width: 760px) {
  .section-image {
    margin-top: 20px;
    border-radius: 12px;
  }
}
/* Download page */
.download-page-hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 66px 24px 42px;
  display: flex;
  align-items: center;
}
.download-page-hero h1 {
  margin: 0 0 10px;
  font-size: clamp(2.2rem, 6vw, 4.2rem);
  line-height: 1;
}
.download-page-hero p {
  margin: 0;
  max-width: 720px;
  font-size: 1.08rem;
  color: var(--muted, #52646c);
}
.home-return {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--accent);
  font-size: 0.94rem;
  font-weight: 750;
  text-decoration: none;
}
.home-return:hover {
  text-decoration: underline;
}
.download-page-body {
  padding-top: 0;
}
.release-card,
.old-versions-callout {
  margin: 0 0 28px;
  padding: 30px;
  border: 1px solid #d9e4e7;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(16, 42, 53, 0.06);
}
.latest-release {
  border-top: 5px solid #df5b2d;
}
.release-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
}
.release-heading h2 {
  margin: 6px 0 12px;
}
.release-label {
  display: inline-block;
  color: #b3421e;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}
.release-date {
  white-space: nowrap;
  color: #60727a;
  font-weight: 700;
}
.release-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 0 0 18px;
}
.release-facts small {
  padding: 7px 11px;
  border-radius: 999px;
  background: #edf4f5;
  color: #24444f;
  font-size: 0.9rem;
  font-weight: 700;
}
.architecture-section {
  margin-bottom: 28px;
}
.architecture-section code {
  padding: 2px 7px;
  border-radius: 6px;
  background: #eaf1f2;
  color: #173d49;
}
.architecture-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}
.architecture-download {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 17px 18px;
  border: 1px solid #cddcdf;
  border-radius: 12px;
  color: #173d49;
  text-decoration: none;
  background: #f8fbfb;
  transition: 0.18s ease;
}
.architecture-download:hover {
  border-color: #df5b2d;
  transform: translateY(-2px);
}
.architecture-download small {
  color: #64757c;
  font-size: 0.9rem;
}
.secondary-download {
  background: #173d49 !important;
}
.old-versions-callout {
  text-align: center;
  background: #102a35;
  color: #fff;
}
.old-versions-callout h2 {
  margin-top: 0;
  color: #fff;
}
.old-versions-callout p {
  max-width: 700px;
  margin: 0 auto 20px;
  color: #dbe7ea;
}
.old-versions-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 22px;
  border-radius: 10px;
  background: #fff;
  color: #102a35;
  font-weight: 800;
  text-decoration: none;
}
.old-versions-button:hover {
  background: #f2e6df;
}
@media (max-width: 680px) {
  .download-page-hero {
    padding-top: 42px;
    align-items: flex-start;
  }
  .release-heading {
    display: block;
  }
  .release-date {
    display: block;
    margin-bottom: 12px;
  }
  .architecture-grid {
    grid-template-columns: 1fr;
  }
  .release-card,
  .old-versions-callout {
    padding: 22px;
  }
}
/* Old versions */
.old-versions-article {
  padding: 54px 48px 64px;
}
.old-versions-intro {
  max-width: 820px;
  margin: 0 auto 34px;
}
.old-versions-intro h1 {
  margin-bottom: 22px;
}
.old-releases-list {
  max-width: 900px;
  margin: auto;
  display: grid;
  gap: 11px;
}
.old-release-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 17px 19px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #f8fbfa;
}
.old-release-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.old-release-info strong {
  color: #173d49;
  font-size: 1.02rem;
}
.old-release-info small {
  color: #60747b;
}
.old-release-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  flex-shrink: 0;
  padding: 10px 15px;
  border-radius: 9px;
  background: var(--accent);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 750;
  text-decoration: none;
}
.old-release-download:hover {
  background: #06685c;
}
.old-release-card {
  content-visibility: auto;
  contain-intrinsic-size: 82px;
}
.header-download svg {
  flex-shrink: 0;
}
@media (max-width: 680px) {
  .old-versions-article {
    padding: 38px 20px 44px;
  }
  .old-release-card {
    align-items: flex-start;
    flex-direction: column;
    gap: 13px;
  }
  .old-release-download {
    width: 100%;
  }
}
/* Guide category and posts */
.guide-category {
  max-width: 980px;
  margin: auto;
  padding: 54px 40px 64px;
}
.guide-category > h1 {
  margin-bottom: 28px;
}
.guide-card {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 26px;
  align-items: center;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #f8fbfa;
  color: var(--ink);
  text-decoration: none;
}
.guide-card:hover {
  border-color: var(--accent);
}
.guide-card img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 11px;
}
.guide-card h2 {
  margin: 0 0 9px;
  font-size: 25px;
}
.guide-card p {
  margin: 0;
  color: var(--muted);
}
.guide-article {
  max-width: 900px;
  margin: auto;
  padding: 46px 40px 64px;
}
.guide-breadcrumb {
  margin-bottom: 23px;
  color: var(--muted);
  font-size: 0.92rem;
}
.guide-article > h1 {
  max-width: 800px;
  margin-bottom: 22px;
}
.guide-article > h2 {
  padding-top: 34px;
  margin: 0 0 16px;
  color: #17384a;
}
.guide-article > p {
  max-width: 820px;
}
.guide-image {
  display: block;
  margin: 24px 0 8px;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: #102a35;
  line-height: 0;
}
.guide-image img {
  display: block;
  width: 100%;
  height: auto;
}
@media (max-width: 760px) {
  .guide-category,
  .guide-article {
    padding: 34px 22px 44px;
  }
  .guide-card {
    grid-template-columns: 1fr;
    gap: 17px;
  }
  .guide-card h2 {
    font-size: 23px;
  }
  .guide-article > h2 {
    padding-top: 27px;
  }
}