:root {
  --ink: #12201a;
  --muted: #536159;
  --paper: #f7faf6;
  --line: #d8e2d7;
  --green: #17735c;
  --green-dark: #0f4f40;
  --green-soft: #e3f3eb;
  --yellow: #f6c646;
  --yellow-soft: #fff1bd;
  --red: #e9472f;
  --sky: #2c8db8;
  --sky-soft: #e5f4f8;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
}

.topbar {
  position: absolute;
  z-index: 5;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 28px;
  color: var(--white);
  background: rgba(12, 25, 21, 0.26);
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 8px;
}

nav {
  display: flex;
  gap: 14px;
  font-size: 15px;
}

nav a {
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  text-decoration: none;
  opacity: 0.9;
}

nav a:hover {
  border-bottom-color: var(--yellow);
  opacity: 1;
}

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 82vh;
  padding: 104px 28px 64px;
  color: var(--white);
  background-image: url("/assets/icon.png");
  background-position: center;
  background-size: cover;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(13, 22, 19, 0.68);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
  margin: 0 auto;
  text-align: center;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--yellow);
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 8px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.12);
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: 56px;
  line-height: 1.05;
}

h2 {
  margin: 0 0 14px;
  font-size: 30px;
  line-height: 1.15;
}

h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.lead {
  max-width: 620px;
  margin: 18px auto 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 19px;
  line-height: 1.7;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  color: var(--ink);
  background: var(--yellow);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.2);
}

.button.secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.72);
}

.release {
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.band {
  padding: 64px 28px;
  background: var(--white);
}

.band.light {
  background: var(--paper);
}

.content {
  width: min(1080px, 100%);
  margin: 0 auto;
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  align-items: start;
}

.panel,
.plan,
.steps article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.panel {
  padding: 22px;
}

.meta-list {
  display: grid;
  gap: 10px;
  margin: 0 0 18px;
}

.meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.meta-row span {
  color: var(--muted);
  font-size: 14px;
}

.meta-row strong {
  color: var(--green-dark);
  font-size: 14px;
}

.update-panel {
  margin-top: 18px;
}

.update-list {
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.update-list li + li {
  margin-top: 6px;
}

.hash {
  margin: 0;
  color: var(--green-dark);
  font-family: Consolas, "Courier New", monospace;
  font-size: 14px;
  line-height: 1.6;
}

.section-intro {
  max-width: 720px;
  margin: 0 0 22px;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.download-card {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.download-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.download-head p {
  margin: 8px 0 0;
}

.download-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 56px;
  min-height: 32px;
  padding: 0 10px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 800;
}

.download-tag.android {
  color: var(--ink);
  background: var(--yellow-soft);
}

.download-tag.windows {
  color: var(--green-dark);
  background: var(--green-soft);
}

.meta-list.compact {
  margin: 0;
}

.button.wide {
  width: 100%;
}

.plans {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.plan {
  position: relative;
  min-height: 244px;
  padding: 24px 20px;
  border-color: rgba(23, 115, 92, 0.24);
  background: var(--green-soft);
  box-shadow: 0 18px 40px rgba(15, 79, 64, 0.1);
  overflow: hidden;
}

.plan::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: var(--green);
}

.plan.featured {
  border-color: rgba(246, 198, 70, 0.9);
  background: var(--yellow-soft);
  box-shadow: 0 18px 42px rgba(15, 79, 64, 0.12);
}

.plan.featured::before {
  background: var(--yellow);
}

.plan:nth-child(3) {
  border-color: rgba(44, 141, 184, 0.28);
  background: var(--sky-soft);
}

.plan:nth-child(3)::before {
  background: var(--sky);
}

.plan-tag {
  margin: 0 0 12px;
  color: var(--sky);
  font-size: 13px;
  font-weight: 800;
}

.plan .plan-tag {
  color: var(--sky);
}

.plan h3 {
  color: var(--green-dark);
}

.plan .price {
  margin: 12px 0 10px;
  color: var(--red);
  font-size: 34px;
  font-weight: 800;
  line-height: 1;
}

.discount-price {
  margin: -4px 0 10px;
  color: var(--green-dark);
  font-size: 15px;
  font-weight: 800;
}

.plan-combo {
  display: grid;
  gap: 10px;
  margin: 18px 0 20px;
}

.plan-combo div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid rgba(18, 32, 26, 0.14);
}

.plan-combo strong {
  color: var(--green-dark);
}

.plan-combo span {
  color: var(--muted);
  font-size: 14px;
}

.plan-link {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 8px;
  color: var(--white);
  background: var(--green);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.plan.featured .plan-link {
  color: var(--ink);
  background: var(--yellow);
}

.plan:nth-child(3) .plan-link {
  background: var(--sky);
}

.note {
  margin: 20px 0 0;
  font-size: 14px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.steps article {
  padding: 22px;
}

.steps span {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  border-radius: 8px;
  color: var(--white);
  background: var(--green);
  font-weight: 800;
}

.band p,
.plan p,
.steps p {
  color: var(--muted);
  line-height: 1.7;
}

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 28px;
  color: var(--white);
  background: var(--green-dark);
}

footer p {
  margin: 0;
}

footer a {
  color: var(--yellow);
  font-weight: 800;
  text-decoration: none;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

@media (max-width: 760px) {
  .topbar {
    gap: 10px;
    padding: 14px 18px;
  }

  .brand span {
    display: none;
  }

  nav {
    justify-content: flex-end;
    gap: 9px;
    font-size: 13px;
  }

  nav a {
    padding: 6px 0;
  }

  .hero {
    min-height: 82vh;
    padding: 92px 18px 48px;
  }

  h1 {
    font-size: 42px;
  }

  h2 {
    font-size: 26px;
  }

  .lead {
    font-size: 17px;
  }

  .button {
    width: 100%;
  }

  .two-column,
  .download-grid,
  .plans,
  .steps {
    grid-template-columns: 1fr;
  }

  .band {
    padding: 46px 18px;
  }

  footer {
    align-items: flex-start;
    flex-direction: column;
    padding: 22px 18px;
  }
}