@charset "UTF-8";

:root {
  --ink: #10271d;
  --muted: #5d7169;
  --green: #3d8051;
  --green-deep: #174b32;
  --lime: #b9e56a;
  --yellow: #f7d958;
  --cream: #fcfbf5;
  --pale: #edf6df;
  --line: #ccd9cc;
  --white: #ffffff;
  --max: 1200px;
  --header-h: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--cream);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  background-image: linear-gradient(rgba(61, 128, 81, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(61, 128, 81, .045) 1px, transparent 1px);
  background-size: 38px 38px;
  content: "";
  pointer-events: none;
}

button,
input {
  font: inherit;
}

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

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

button {
  border: 0;
  cursor: pointer;
}

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

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

.site-header {
  position: fixed;
  z-index: 1000;
  top: 0;
  right: 0;
  left: 0;
  height: var(--header-h);
  background: rgba(252, 251, 245, .98);
  border-bottom: 1px solid var(--line);
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  backface-visibility: hidden;
}

.header-inner {
  display: flex;
  align-items: center;
  width: min(var(--max), calc(100% - 40px));
  height: 100%;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 9px;
  min-width: 0;
}

.brand img {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 5px;
  object-fit: contain;
  background: var(--pale);
}

.brand-copy {
  display: grid;
  min-width: 0;
  line-height: 1.18;
}

.brand-copy strong {
  font-size: 18px;
  font-weight: 800;
}

.brand-copy span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.site-nav {
  margin-left: auto;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  position: relative;
  display: block;
  padding: 27px 0 24px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  background: var(--green);
  content: "";
  opacity: 0;
}

.site-nav a:hover,
.site-nav a.is-current {
  color: var(--green);
}

.site-nav a.is-current::after {
  opacity: 1;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 30px;
}

.header-download,
.primary-download,
.download-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid var(--green-deep);
  border-radius: 5px;
  background: var(--green-deep);
  color: var(--white);
  font-size: 14px;
  font-weight: 800;
  line-height: 1;
}

.header-download {
  min-width: 148px;
  min-height: 44px;
  padding: 0 18px;
}

.header-download:hover,
.primary-download:hover,
.download-link:hover {
  background: var(--yellow);
  color: var(--ink);
}

.header-download:hover .i-download,
.primary-download:hover .i-download,
.download-link:hover .i-download {
  filter: none;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--green-deep);
  border-radius: 5px;
  background: transparent;
}

i[class^="i-"] {
  display: inline-block;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}

.i-download { background-image: url("../icons/download.svg"); }
.i-menu { background-image: url("../icons/menu.svg"); }
.i-search { background-image: url("../icons/search.svg"); }
.i-folder { background-image: url("../icons/folder.svg"); }
.i-bookmark { background-image: url("../icons/bookmark.svg"); }
.i-bell { background-image: url("../icons/bell.svg"); }
.i-avatar { background-image: url("../icons/avatar.svg"); }
.i-top { background-image: url("../icons/top.svg"); }
.i-plus { background-image: url("../icons/plus.svg"); }
.i-link { background-image: url("../icons/link.svg"); }
.i-share { background-image: url("../icons/share.svg"); }
.i-globe { background-image: url("../icons/globe.svg"); }

.header-download .i-download,
.primary-download .i-download,
.download-link .i-download {
  filter: brightness(0) invert(1);
}

.hero,
.section {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 370px;
  align-items: center;
  min-height: 720px;
  padding-top: calc(var(--header-h) + 64px);
  padding-bottom: 56px;
}

.hero-copy {
  max-width: 650px;
  padding: 32px 0;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .17em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.14;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(56px, 7vw, 90px);
  letter-spacing: -.08em;
  white-space: nowrap;
}

.hero-slogan {
  margin-bottom: 18px;
  font-size: clamp(25px, 3.2vw, 38px);
  font-weight: 800;
  letter-spacing: -.04em;
}

.hero-description {
  max-width: 590px;
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 16px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.hero-tags span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 40px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: rgba(255, 255, 255, .76);
  color: var(--green-deep);
  font-size: 13px;
  font-weight: 700;
}

.hero-tags i {
  width: 16px;
  height: 16px;
}

.primary-download {
  min-width: 218px;
  min-height: 56px;
  padding: 0 24px;
  font-size: 16px;
}

.age-label {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
}

.hero-device {
  display: flex;
  justify-content: flex-end;
  align-self: stretch;
  padding: 22px 0 0;
}

.phone-frame {
  align-self: center;
  width: 340px;
  height: 602px;
  overflow: hidden;
  border: 10px solid #14271e;
  border-radius: 34px;
  background: #ffffff;
  box-shadow: none;
}

.phone-status {
  display: flex;
  justify-content: space-between;
  padding: 11px 18px 7px;
  color: #173021;
  font-size: 12px;
  font-weight: 800;
}

.phone-signal {
  font-size: 12px;
  letter-spacing: 1px;
}

.phone-appbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 15px 12px;
  border-bottom: 1px solid #e1e8e0;
}

.phone-logo {
  display: inline-grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 50%;
  background: var(--yellow);
  color: var(--green-deep);
  font-size: 14px;
  font-weight: 900;
}

.phone-appbar strong {
  font-size: 15px;
}

.phone-search {
  display: grid;
  width: 30px;
  height: 30px;
  margin-left: auto;
  place-items: center;
  border-radius: 50%;
  background: #eff6ec;
}

.phone-search .i-search {
  width: 16px;
  height: 16px;
}

.phone-searchbox {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 12px 15px;
  padding: 0 10px;
  border: 1px solid #d7e3d4;
  border-radius: 5px;
  background: #f2f7ef;
}

.phone-searchbox i {
  width: 15px;
  height: 15px;
}

.phone-searchbox input {
  width: 100%;
  min-height: 34px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-size: 12px;
}

.phone-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 0 15px;
  border-bottom: 1px solid #e1e8e0;
}

.phone-tabs button {
  min-height: 39px;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: #6c7c72;
  font-size: 12px;
  font-weight: 700;
}

.phone-tabs button.is-active {
  border-bottom-color: var(--green);
  color: var(--green-deep);
}

.phone-panel {
  display: none;
  min-height: 392px;
  padding: 13px 15px;
}

.phone-panel.is-active {
  display: block;
}

.phone-feature {
  display: grid;
  gap: 5px;
  padding: 15px;
  border-radius: 5px;
  background: linear-gradient(135deg, #24583b, #5b9c5e);
  color: #fff;
}

.phone-feature span,
.phone-feature small {
  font-size: 12px;
}

.phone-feature strong {
  font-size: 17px;
}

.phone-list {
  margin-top: 12px;
}

.phone-list article {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr) auto;
  align-items: center;
  gap: 9px;
  padding: 12px 0;
  border-bottom: 1px solid #e1e8e0;
}

.phone-list strong,
.phone-list small {
  display: block;
}

.phone-list strong {
  font-size: 13px;
}

.phone-list small {
  margin-top: 2px;
  color: #718076;
  font-size: 12px;
}

.resource-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-yellow { background: var(--yellow); }
.dot-green { background: #63b777; }
.dot-blue { background: #6ca7dc; }

.save-toggle {
  min-width: 44px;
  min-height: 28px;
  border: 1px solid var(--green);
  border-radius: 5px;
  background: #ffffff;
  color: var(--green);
  font-size: 12px;
  font-weight: 700;
}

.save-toggle.is-saved {
  background: var(--green);
  color: #fff;
}

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

.folder-mini-grid button {
  display: grid;
  gap: 8px;
  min-height: 115px;
  padding: 13px;
  border: 1px solid #d7e3d4;
  border-radius: 5px;
  background: #f7faf5;
  color: var(--green-deep);
  text-align: left;
  font-size: 12px;
  font-weight: 700;
}

.folder-mini-grid i {
  width: 23px;
  height: 23px;
}

.folder-mini-grid span {
  color: #809080;
  font-size: 12px;
}

.saved-empty {
  display: grid;
  min-height: 230px;
  place-content: center;
  gap: 10px;
  color: var(--green-deep);
  text-align: center;
}

.saved-empty i {
  width: 36px;
  height: 36px;
  margin: 0 auto;
}

.saved-empty span {
  font-size: 14px;
  font-weight: 800;
}

.saved-empty small {
  color: #778579;
  font-size: 12px;
}

.phone-bottomnav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: auto;
  padding: 11px 10px;
  border-top: 1px solid #e1e8e0;
  color: #718076;
  font-size: 12px;
  text-align: center;
}

.phone-bottomnav .is-active {
  color: var(--green);
  font-weight: 800;
}

.section {
  padding: 94px 0;
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 34px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(38px, 5vw, 62px);
  letter-spacing: -.06em;
}

.section-heading > p {
  max-width: 420px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.catalog-section {
  background: linear-gradient(180deg, rgba(237, 246, 223, .72), rgba(237, 246, 223, 0));
}

.catalog-layout {
  display: grid;
  grid-template-columns: 245px minmax(0, 1fr);
  border: 1px solid var(--green-deep);
  border-radius: 5px;
  overflow: hidden;
  background: #fff;
}

.catalog-filter {
  padding: 25px;
  background: var(--green-deep);
  color: #fff;
}

.catalog-filter > p {
  margin-bottom: 18px;
  color: var(--lime);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
}

.catalog-filter-button {
  display: flex;
  justify-content: space-between;
  width: 100%;
  min-height: 46px;
  padding: 0 12px;
  border-bottom: 1px solid rgba(255, 255, 255, .22);
  background: transparent;
  color: #fff;
  font-size: 14px;
  text-align: left;
}

.catalog-filter-button:hover,
.catalog-filter-button.is-active {
  color: var(--yellow);
}

.catalog-filter-button span {
  font-size: 12px;
}

.catalog-board {
  padding: 28px;
}

.board-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.board-head p {
  margin-bottom: 7px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
}

.board-head h3 {
  margin-bottom: 0;
  font-size: 26px;
}

.board-head button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--green);
  border-radius: 5px;
  background: #fff;
  color: var(--green-deep);
  font-size: 13px;
  font-weight: 700;
}

.board-head button:hover {
  background: var(--green);
  color: #fff;
}

.board-head button:hover .i-plus {
  filter: brightness(0) invert(1);
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.resource-card {
  position: relative;
  min-height: 194px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: #fbfdf9;
}

.resource-card.is-hidden {
  display: none;
}

.resource-card > i {
  width: 24px;
  height: 24px;
  margin-bottom: 20px;
}

.resource-type,
.resource-meta {
  display: block;
  font-size: 12px;
}

.resource-type {
  color: var(--green);
  font-weight: 800;
}

.resource-card h3 {
  margin: 5px 0 8px;
  font-size: 20px;
}

.resource-card p {
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 13px;
}

.resource-meta {
  color: #718076;
}

.method-section {
  padding-top: 56px;
}

.method-timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: 5px;
  background: #fff;
}

.method-timeline article {
  min-height: 230px;
  padding: 27px 24px;
  border-right: 1px solid var(--line);
}

.method-timeline article:last-child {
  border-right: 0;
  background: var(--green-deep);
  color: #fff;
}

.method-timeline span {
  display: inline-grid;
  width: 34px;
  height: 34px;
  margin-bottom: 32px;
  place-items: center;
  border-radius: 50%;
  background: var(--yellow);
  color: var(--green-deep);
  font-size: 12px;
  font-weight: 900;
}

.method-timeline h3 {
  margin-bottom: 11px;
  font-size: 22px;
}

.method-timeline p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.method-timeline article:last-child p {
  color: rgba(255, 255, 255, .75);
}

.screens-section {
  background: #f6f8f0;
}

.screens-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.screens-track figure {
  display: grid;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: #fff;
}

.screen-media {
  display: grid;
  width: 250px;
  height: 450px;
  max-width: 100%;
  margin: 0 auto;
  place-items: center;
  background: #f4f5ef;
}

.screen-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.screens-track figcaption {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  min-height: 95px;
  padding: 18px;
  border-top: 1px solid var(--line);
}

.screens-track figcaption span {
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
}

.screens-track figcaption strong {
  font-size: 17px;
}

.screens-track figcaption small {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 12px;
}

.help-section {
  background: #fff;
}

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

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

.faq-item > button {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 20px;
  align-items: center;
  width: 100%;
  min-height: 74px;
  padding: 0 18px;
  background: transparent;
  color: var(--ink);
  text-align: left;
}

.faq-item > button span {
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
}

.faq-item > button strong {
  font-size: 16px;
}

.faq-item > button .i-plus {
  justify-self: end;
  width: 18px;
  height: 18px;
}

.faq-item.is-open > button {
  background: var(--pale);
}

.faq-item.is-open > button .i-plus {
  background-image: url("../icons/minus.svg");
}

.faq-answer {
  display: none;
  padding: 0 54px 20px 60px;
  background: var(--pale);
}

.faq-answer p {
  margin-bottom: 0;
  color: #52675b;
  font-size: 14px;
}

.faq-item.is-open .faq-answer {
  display: block;
}

.official-details {
  margin-top: 20px;
  border: 1px solid var(--green-deep);
  border-radius: 5px;
  background: #fff;
}

.official-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 0 20px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 800;
  list-style: none;
}

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

.official-details summary span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.official-details summary[open] .i-plus,
.official-details[open] summary .i-plus {
  background-image: url("../icons/minus.svg");
}

.official-details > p {
  margin: 0;
  padding: 0 20px 20px;
}

.official-details > p a {
  color: var(--green);
  font-size: 14px;
  text-decoration: underline;
}

.voices-section {
  background: var(--green-deep);
  color: #fff;
}

.voices-section .eyebrow {
  color: var(--lime);
}

.voices-section .section-heading {
  border-color: rgba(255, 255, 255, .26);
}

.voices-section .section-heading > p {
  color: rgba(255, 255, 255, .72);
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.review-card {
  display: flex;
  min-height: 290px;
  flex-direction: column;
  padding: 22px;
  border-top: 3px solid var(--yellow);
  border-radius: 5px;
  background: #fff;
  color: var(--ink);
}

.review-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--line);
}

.review-head > span:first-child {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.review-head .i-avatar {
  width: 31px;
  height: 31px;
  border-radius: 50%;
  background-color: var(--green-deep);
}

.review-head strong,
.review-rating {
  font-size: 14px;
}

.review-rating {
  color: var(--green);
  font-weight: 800;
  white-space: nowrap;
}

.review-card p {
  margin: 16px 0;
  font-size: 14px;
  line-height: 1.8;
}

.review-card time {
  display: block;
  margin-top: auto;
  color: var(--muted);
  font-size: 12px;
  text-align: right;
}

.download-section {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr) 250px;
  align-items: stretch;
  padding: 0;
  border: 1px solid var(--ink);
  border-radius: 5px;
  background: #fff;
  overflow: hidden;
}

.download-marker {
  display: grid;
  min-height: 180px;
  place-content: center;
  border-right: 1px dashed var(--green);
  background: var(--lime);
  text-align: center;
}

.download-marker span {
  display: block;
  font-size: 56px;
  font-weight: 900;
  letter-spacing: -.06em;
  line-height: 1;
}

.download-marker small {
  margin-top: 8px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .12em;
}

.download-copy {
  display: grid;
  align-content: center;
  padding: 28px 36px;
}

.download-copy .eyebrow {
  margin-bottom: 8px;
}

.download-copy h2 {
  margin-bottom: 8px;
  font-size: 30px;
}

.download-copy p:last-child {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.download-link {
  min-height: 100%;
  padding: 20px;
  border: 0;
  border-radius: 0;
  background: var(--green-deep);
  font-size: 16px;
}

.site-footer {
  margin-top: 94px;
  padding: 38px 0 24px;
  background: #10271d;
  color: #fff;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.footer-brand img {
  border-color: rgba(255, 255, 255, .3);
}

.footer-brand .brand-copy span {
  color: rgba(255, 255, 255, .67);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 22px;
}

.footer-nav a {
  color: rgba(255, 255, 255, .86);
  font-size: 13px;
}

.footer-nav a:hover {
  color: var(--lime);
}

.site-footer > p {
  width: min(var(--max), calc(100% - 40px));
  margin: 26px auto 0;
  padding-top: 17px;
  border-top: 1px solid rgba(255, 255, 255, .25);
  color: rgba(255, 255, 255, .7);
  font-size: 12px;
  text-align: center;
}

.back-to-top {
  position: fixed;
  z-index: 1100;
  right: 24px;
  bottom: 24px;
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid var(--green-deep);
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: 0 7px 18px rgba(15, 39, 27, .18);
}

.back-to-top i {
  width: 20px;
  height: 20px;
}

.header-download:focus-visible,
.primary-download:focus-visible,
.download-link:focus-visible,
.nav-toggle:focus-visible,
.back-to-top:focus-visible,
button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
}

@media (max-width: 980px) {
  .site-nav ul { gap: 16px; }
  .header-actions { margin-left: 18px; }
  .hero { grid-template-columns: minmax(0, 1fr) 320px; }
  .phone-frame { width: 305px; height: 576px; }
  .catalog-layout { grid-template-columns: 200px minmax(0, 1fr); }
  .method-timeline article { padding: 22px 16px; }
  .download-section { grid-template-columns: 165px minmax(0, 1fr) 210px; }
}

@media (max-width: 760px) {
  :root { --header-h: 66px; }

  html,
  body { width: 100%; overflow-x: clip; }

  body { font-size: 15px; }

  .header-inner { width: calc(100% - 24px); }

  .brand { gap: 7px; max-width: calc(100% - 145px); }
  .brand img { width: 38px; height: 38px; }
  .brand-copy strong { font-size: 15px; }
  .brand-copy span { font-size: 12px; }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 12px;
    left: 12px;
    display: none;
    margin: 0;
    border: 1px solid var(--green-deep);
    border-radius: 5px;
    background: var(--cream);
    box-shadow: 0 12px 26px rgba(15, 39, 27, .16);
  }

  .site-nav.is-open { display: block; }

  .site-nav ul { display: block; padding: 8px 14px; }
  .site-nav a { padding: 13px 4px; font-size: 14px; }
  .site-nav a::after { display: none; }

  .header-actions { gap: 8px; margin-left: auto; }
  .header-download { min-width: 73px; min-height: 38px; padding: 0 8px; font-size: 12px; white-space: nowrap; }
  .header-download span { font-size: 12px; }
  .header-download .i-download { display: none; }
  .nav-toggle { display: grid; width: 38px; height: 38px; place-items: center; }

  .hero,
  .section { width: calc(100% - 28px); }

  .hero { display: flex; min-height: 0; flex-direction: column; padding-top: calc(var(--header-h) + 38px); padding-bottom: 46px; text-align: center; }
  .hero-copy { max-width: 100%; padding: 0; }
  .eyebrow { font-size: 12px; }
  h1 { margin-bottom: 16px; font-size: clamp(46px, 18vw, 64px); white-space: normal; }
  .hero-slogan { font-size: 26px; }
  .hero-description { font-size: 14px; }
  .hero-tags { justify-content: center; margin-bottom: 22px; }
  .hero-tags span { min-height: 38px; padding: 0 9px; font-size: 12px; }
  .primary-download { min-width: 230px; min-height: 52px; }
  .age-label { margin-top: 9px; text-align: center; }
  .hero-device { width: 100%; justify-content: center; align-self: auto; padding: 32px 0 0; }
  .phone-frame { width: min(310px, calc(100vw - 58px)); height: 558px; }

  .section { padding: 60px 0; }
  .section-heading { display: block; margin-bottom: 24px; padding-bottom: 14px; }
  .section-heading h2 { font-size: 42px; }
  .section-heading > p { margin-top: 14px; font-size: 14px; }

  .catalog-layout { display: block; }
  .catalog-filter { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 10px; padding: 16px; }
  .catalog-filter > p { grid-column: 1 / -1; margin-bottom: 8px; }
  .catalog-filter-button { min-height: 40px; font-size: 12px; }
  .catalog-board { padding: 18px; }
  .board-head { align-items: flex-start; }
  .board-head h3 { font-size: 21px; }
  .board-head button { min-height: 34px; font-size: 12px; }
  .resource-grid { grid-template-columns: 1fr; gap: 10px; }
  .resource-card { min-height: 158px; }

  .method-section { padding-top: 20px; }
  .method-timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .method-timeline article { min-height: 190px; padding: 20px 16px; border-bottom: 1px solid var(--line); }
  .method-timeline article:nth-child(2) { border-right: 0; }
  .method-timeline span { margin-bottom: 24px; }
  .method-timeline h3 { font-size: 19px; }
  .method-timeline p { font-size: 13px; }

  .screens-track { display: flex; gap: 12px; padding: 2px 0 12px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: thin; }
  .screens-track figure { flex: 0 0 min(250px, calc(100vw - 72px)); scroll-snap-align: start; }
  .screen-media { width: 250px; height: 450px; }
  .screens-track figcaption { min-height: 88px; padding: 15px; }

  .faq-item > button { grid-template-columns: 32px minmax(0, 1fr) 18px; min-height: 64px; padding: 0 10px; }
  .faq-item > button strong { font-size: 14px; }
  .faq-answer { padding: 0 20px 18px 42px; }
  .faq-answer p { font-size: 13px; }
  .official-details summary { min-height: 62px; padding: 0 14px; font-size: 14px; }
  .official-details > p { padding: 0 14px 16px; }

  .review-grid { grid-template-columns: 1fr; gap: 12px; }
  .review-card { min-height: 0; padding: 18px; }
  .review-card p { font-size: 14px; }

  .download-section { display: grid; grid-template-columns: 1fr; }
  .download-marker { min-height: 104px; border-right: 0; border-bottom: 1px dashed var(--green); }
  .download-marker span { font-size: 43px; }
  .download-copy { padding: 25px 20px; text-align: center; }
  .download-copy h2 { font-size: 26px; }
  .download-link { min-height: 58px; }

  .site-footer { margin-top: 60px; padding-top: 32px; }
  .footer-inner { display: flex; width: calc(100% - 28px); flex-direction: column; gap: 25px; text-align: center; }
  .footer-brand { justify-content: center; }
  .footer-nav { justify-content: center; gap: 15px 18px; }
  .site-footer > p { width: calc(100% - 28px); margin-top: 22px; }
  .back-to-top { right: 16px; bottom: 16px; width: 45px; height: 45px; }

  @media (hover: none), (pointer: coarse) {
    a,
    button,
    summary,
    [role="button"] {
      -webkit-tap-highlight-color: transparent;
      transition: none !important;
      animation: none !important;
    }

    a:active,
    button:active,
    summary:active,
    [role="button"]:active {
      opacity: 1 !important;
      filter: none !important;
      transform: none !important;
    }
  }
}