:root {
  color-scheme: light;
  --bg: #fbfefd;
  --surface: #ffffff;
  --surface-soft: #f2fbf8;
  --text: #0d1f2f;
  --muted: #526170;
  --border: #dce9e5;
  --accent: #07947f;
  --accent-strong: #008871;
  --accent-soft: #dff7f1;
  --shadow: 0 18px 38px rgba(9, 46, 43, 0.09);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 78% 10%, rgba(11, 156, 133, 0.08), transparent 310px),
    linear-gradient(180deg, #ffffff 0, var(--bg) 620px);
}

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

svg {
  display: block;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: 78px;
  padding: 14px clamp(18px, 5vw, 52px);
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-pet {
  position: relative;
  width: 38px;
  height: 38px;
  display: inline-block;
}

.brand-pet__ear {
  position: absolute;
  top: 0;
  width: 14px;
  height: 14px;
  background: #8ff4df;
  border: 3px solid #0d1f2f;
  border-bottom: 0;
}

.brand-pet__ear--left {
  left: 5px;
  transform: skewY(-18deg);
}

.brand-pet__ear--right {
  right: 5px;
  transform: skewY(18deg);
}

.brand-pet__face {
  position: absolute;
  inset: 9px 3px 3px;
  display: flex;
  justify-content: center;
  gap: 8px;
  padding-top: 12px;
  background: #e5fff8;
  border: 3px solid #0d1f2f;
  border-radius: 8px;
  box-shadow: inset 0 -5px 0 #8ff4df;
}

.brand-pet__face span {
  width: 4px;
  height: 6px;
  background: #0d1f2f;
  border-radius: 2px;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 4vw, 48px);
  color: #152839;
  font-size: 15px;
  font-weight: 700;
}

.top-nav a,
.footer-links a {
  transition:
    color 160ms ease,
    transform 160ms ease;
}

.top-nav a:hover,
.footer-links a:hover {
  color: var(--accent);
}

.header-download,
.button,
.download-item__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border-radius: 8px;
  font-weight: 800;
}

.header-download {
  min-height: 44px;
  padding: 0 18px;
  color: #ffffff;
  background: var(--accent);
  box-shadow: 0 10px 24px rgba(0, 136, 113, 0.22);
}

.header-download svg,
.download-item__button svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

main {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  min-width: 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(470px, 1fr);
  align-items: center;
  gap: clamp(32px, 6vw, 72px);
  min-height: 690px;
  padding: 44px 0 48px;
}

.hero__copy h1 {
  max-width: 560px;
  margin: 0;
  color: #081928;
  font-size: clamp(48px, 8vw, 88px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero__copy h1 span {
  display: block;
}

.hero__copy p {
  max-width: 620px;
  margin: 26px 0 0;
  color: #2d3d4d;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.72;
  overflow-wrap: anywhere;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 34px;
}

.button {
  min-height: 64px;
  padding: 0 28px;
  border: 1px solid var(--accent);
  font-size: 18px;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background-color 160ms ease;
}

.button:hover,
.header-download:hover,
.download-item:hover .download-item__button {
  transform: translateY(-1px);
}

.button--primary {
  color: #ffffff;
  background: var(--accent);
  box-shadow: 0 16px 28px rgba(0, 136, 113, 0.23);
}

.button--secondary {
  color: var(--accent-strong);
  background: #ffffff;
}

.button svg {
  width: 25px;
  height: 25px;
  fill: currentColor;
}

.hero__copy .hero__note {
  margin-top: 24px;
  color: #5d6b78;
  font-size: 15px;
}

.hero__visual {
  position: relative;
  min-height: 590px;
  display: flex;
  align-items: center;
}

.app-window {
  width: 100%;
  max-width: 100%;
  min-height: 472px;
  overflow: hidden;
  border: 1px solid #cadbd7;
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.window-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 18px;
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot--red {
  background: #ff6b5f;
}

.dot--yellow {
  background: #f8bd3a;
}

.dot--green {
  background: #26c65e;
}

.window-status {
  position: relative;
  margin-left: auto;
  color: #234137;
  font-size: 13px;
  font-weight: 750;
}

.window-status::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 7px;
  border-radius: 999px;
  background: #26c65e;
}

.app-body {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  min-width: 0;
  min-height: 424px;
}

.app-sidebar {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 28px 18px;
  border-right: 1px solid var(--border);
  color: #516170;
  font-size: 14px;
}

.app-sidebar strong {
  margin-bottom: 12px;
  color: var(--text);
  font-size: 16px;
}

.app-sidebar span {
  padding: 10px 12px;
  border-radius: 8px;
  font-weight: 700;
}

.app-sidebar .is-active {
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.app-main {
  display: grid;
  align-content: start;
  gap: 18px;
  min-width: 0;
  padding: 32px 26px;
}

.app-main small,
.status-grid span {
  color: #627280;
  font-size: 13px;
  font-weight: 700;
}

.app-main h2 {
  margin: 6px 0 0;
  font-size: 28px;
  letter-spacing: 0;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.status-grid div,
.activity-list {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
}

.status-grid div {
  min-height: 98px;
  padding: 16px;
}

.status-grid strong {
  display: block;
  margin-top: 14px;
  color: #0c6759;
  font-size: 24px;
}

.activity-list {
  padding: 10px 16px;
}

.activity-list p {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 13px 0;
  color: #435464;
  border-bottom: 1px solid #edf3f1;
  font-size: 14px;
}

.activity-list p:last-child {
  border-bottom: 0;
}

.activity-list span {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
}

.pixel-pet {
  position: absolute;
  left: -38px;
  bottom: 34px;
  width: 136px;
  height: 128px;
  filter: drop-shadow(0 13px 10px rgba(13, 31, 47, 0.12));
}

.pixel-pet__body {
  position: absolute;
  left: 23px;
  top: 30px;
  width: 82px;
  height: 78px;
  border: 6px solid #0d1f2f;
  border-radius: 8px;
  background: #f5fffc;
  box-shadow:
    inset 0 -14px 0 #92f2df,
    0 0 0 6px rgba(146, 242, 223, 0.22);
}

.pixel-pet__ear {
  position: absolute;
  top: 4px;
  width: 32px;
  height: 36px;
  border: 6px solid #0d1f2f;
  border-bottom: 0;
  background: #92f2df;
}

.pixel-pet__ear--left {
  left: 28px;
  transform: skewY(-18deg);
}

.pixel-pet__ear--right {
  left: 72px;
  transform: skewY(18deg);
}

.pixel-pet__eye {
  position: absolute;
  top: 30px;
  width: 11px;
  height: 15px;
  border-radius: 99px;
  background: #0d1f2f;
}

.pixel-pet__eye--left {
  left: 22px;
}

.pixel-pet__eye--right {
  right: 22px;
}

.pixel-pet__mouth {
  position: absolute;
  left: 35px;
  top: 52px;
  width: 14px;
  height: 6px;
  border-right: 3px solid #0d1f2f;
  border-bottom: 3px solid #0d1f2f;
  border-left: 3px solid #0d1f2f;
  border-radius: 0 0 9px 9px;
}

.pixel-pet__tail {
  position: absolute;
  right: 8px;
  bottom: 32px;
  width: 34px;
  height: 54px;
  border-right: 7px solid #0d1f2f;
  border-bottom: 7px solid #0d1f2f;
  border-radius: 0 0 30px 0;
  transform: rotate(12deg);
}

.value,
.platforms {
  margin: 8px 0 30px;
}

.section-heading {
  max-width: 920px;
  margin: 0 auto 24px;
  text-align: center;
}

.section-heading span,
.eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--accent-strong);
  font-size: 14px;
  font-weight: 800;
}

.section-heading h2,
.platforms h2 {
  margin: 0;
  color: #081928;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.16;
  letter-spacing: 0;
}

.section-heading p,
.platforms p {
  margin: 18px 0 0;
  color: #354657;
  font-size: 17px;
  line-height: 1.78;
  overflow-wrap: anywhere;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.value-card {
  min-height: 210px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 12px 24px rgba(9, 46, 43, 0.05);
}

.value-card h3 {
  margin: 0;
  color: #17293a;
  font-size: 21px;
  line-height: 1.35;
}

.value-card p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.features {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin: 10px 0 30px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 12px 28px rgba(9, 46, 43, 0.05);
}

.feature {
  min-height: 230px;
  padding: 34px 28px;
  text-align: center;
  border-right: 1px solid var(--border);
}

.feature:last-child {
  border-right: 0;
}

.feature__icon {
  display: inline-grid;
  place-items: center;
  width: 70px;
  height: 70px;
  margin-bottom: 17px;
  border-radius: 8px;
  color: var(--accent);
  background: var(--accent-soft);
}

.feature__icon svg {
  width: 36px;
  height: 36px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature h3 {
  margin: 0;
  font-size: 21px;
  letter-spacing: 0;
}

.feature p {
  margin: 14px auto 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.platforms {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 0.52fr);
  align-items: center;
  gap: clamp(24px, 5vw, 56px);
  padding: clamp(30px, 5vw, 48px);
  border: 1px solid #cde7e0;
  border-radius: 8px;
  background: #f7fffc;
}

.platform-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.platform-list li {
  min-height: 56px;
  display: flex;
  align-items: center;
  padding: 0 18px;
  border: 1px solid #cde7e0;
  border-radius: 8px;
  color: #173426;
  background: #ffffff;
  font-weight: 800;
}

.privacy {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(22px, 5vw, 56px);
  margin: 30px 0 26px;
  padding: clamp(28px, 4vw, 44px);
  border: 1px solid #cde7e0;
  border-radius: 8px;
  background: linear-gradient(110deg, #f8fffd 0, #edf9f6 100%);
}

.privacy__art {
  display: flex;
  justify-content: center;
  color: var(--accent);
}

.privacy__art svg {
  width: min(100%, 230px);
  fill: none;
  stroke: currentColor;
  stroke-width: 7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.privacy h2,
.download h2 {
  margin: 0;
  color: #081928;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.1;
  letter-spacing: 0;
}

.privacy p {
  max-width: 760px;
  margin: 18px 0 0;
  color: #354657;
  font-size: 17px;
  line-height: 1.75;
  overflow-wrap: anywhere;
}

.privacy-list {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.privacy-list li {
  position: relative;
  padding-left: 28px;
  color: #223544;
  font-weight: 750;
}

.privacy-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 14px;
  height: 8px;
  border-left: 3px solid var(--accent);
  border-bottom: 3px solid var(--accent);
  transform: rotate(-45deg);
}

.download {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 0 60px;
  text-align: center;
}

.download-list {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.download-item {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr) auto 136px;
  align-items: center;
  gap: 18px;
  min-height: 92px;
  padding: 12px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  text-align: left;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.download-item:hover {
  border-color: #adddd2;
  box-shadow: 0 12px 24px rgba(9, 46, 43, 0.08);
  transform: translateY(-1px);
}

.download-item__icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 8px;
  background: #edf8f5;
}

.download-item__icon svg {
  width: 34px;
  height: 34px;
  fill: currentColor;
}

.download-item__icon--apple {
  color: #102235;
}

.download-item__icon--windows {
  color: #0e3d62;
}

.download-item__copy strong {
  display: block;
  color: #17293a;
  font-size: 19px;
}

.download-item__copy small,
.download-item__meta,
.download-note,
.site-footer span {
  color: var(--muted);
}

.download-item__copy small {
  display: block;
  margin-top: 7px;
  font-size: 14px;
}

.download-item__meta {
  font-size: 14px;
  white-space: nowrap;
}

.download-item__button {
  min-height: 48px;
  padding: 0 20px;
  color: #ffffff;
  background: var(--accent);
  font-size: 16px;
}

.download-note {
  margin: 18px 0 0;
  font-size: 14px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(18px, 5vw, 52px);
  border-top: 1px solid var(--border);
  background: #ffffff;
}

.site-footer strong,
.site-footer span,
.footer-email {
  display: block;
}

.site-footer strong {
  color: #17293a;
  font-size: 18px;
}

.site-footer span {
  margin-top: 4px;
}

.footer-email {
  margin-top: 6px;
  color: var(--accent-strong);
  font-weight: 750;
}

.footer-security-record {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
  line-height: 20px;
}

.footer-security-record:hover {
  color: var(--accent-strong);
}

.footer-security-record img {
  width: 18px;
  height: 20px;
  object-fit: contain;
}

.footer-links {
  display: flex;
  gap: 20px;
  color: #445565;
  font-weight: 750;
}

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

@media (max-width: 980px) {
  .site-header {
    flex-wrap: wrap;
  }

  .top-nav {
    order: 3;
    width: 100%;
    justify-content: center;
    padding-top: 4px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
    padding-top: 48px;
  }

  .hero__visual {
    min-height: 520px;
  }

  .features {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .feature:nth-child(2) {
    border-right: 0;
  }

  .feature:nth-child(-n + 2) {
    border-bottom: 1px solid var(--border);
  }

  .download-item {
    grid-template-columns: 64px minmax(0, 1fr) 120px;
  }

  .download-item__meta {
    display: none;
  }
}

@media (max-width: 680px) {
  body {
    background: #ffffff;
  }

  main {
    width: auto;
    max-width: none;
    margin-right: 32px;
    margin-left: 16px;
  }

  .site-header {
    position: static;
    gap: 14px;
    padding: 14px;
  }

  .brand {
    font-size: 17px;
  }

  .header-download {
    display: none;
  }

  .top-nav {
    justify-content: flex-start;
    gap: 24px;
    overflow-x: auto;
  }

  .hero {
    padding-top: 34px;
  }

  .hero,
  .hero__copy,
  .hero__actions,
  .value,
  .features,
  .platforms,
  .privacy,
  .download,
  .app-window {
    width: calc(100% - 56px);
    max-width: calc(100% - 56px);
  }

  .hero__copy h1 {
    font-size: clamp(44px, 14vw, 58px);
  }

  .hero__copy p {
    font-size: 17px;
    width: calc(100% - 56px);
    word-break: break-all;
  }

  .button {
    width: 100%;
    max-width: 100%;
    min-height: 56px;
    font-size: 17px;
  }

  .hero__visual {
    min-height: 0;
    padding-bottom: 96px;
  }

  .app-window {
    min-height: 430px;
  }

  .window-status {
    display: none;
  }

  .app-body {
    grid-template-columns: 1fr;
  }

  .app-sidebar {
    display: none;
  }

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

  .pixel-pet {
    left: 18px;
    bottom: 0;
    width: 112px;
    height: 108px;
    transform: scale(0.88);
    transform-origin: left bottom;
  }

  .features,
  .privacy,
  .download-item {
    grid-template-columns: 1fr;
    width: 100%;
    max-width: 100%;
  }

  .feature {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .feature p,
  .section-heading p,
  .platforms p,
  .value-card p,
  .privacy p,
  .download-note {
    word-break: break-all;
  }

  .section-heading {
    text-align: left;
  }

  .value-card {
    min-height: 0;
    padding: 22px;
  }

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

  .feature p {
    max-width: 230px;
  }

  .feature:last-child {
    border-bottom: 0;
  }

  .privacy {
    text-align: left;
  }

  .privacy__art {
    justify-content: flex-start;
  }

  .download {
    padding-bottom: 42px;
  }

  .download-item {
    justify-items: start;
    gap: 12px;
    padding: 18px;
  }

  .download-item__button {
    width: 100%;
  }

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