:root {
  color-scheme: light;
  --brand: #f27b35;
  --brand-dark: #db6522;
  --ink: #1d2735;
  --muted: #748093;
  --line: #e8edf3;
  --surface: #ffffff;
  --background: #f5f7fb;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(ellipse at 50% -10%, rgba(255, 202, 156, 0.32), transparent 42%),
    var(--background);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

[hidden] {
  display: none !important;
}

.page {
  width: min(100% - 32px, 520px);
  min-height: 100vh;
  margin: 0 auto;
  padding: 48px 0 24px;
}

.hero {
  padding: 12px 12px 24px;
  text-align: center;
}

.app-mark {
  display: grid;
  width: 68px;
  height: 68px;
  margin: 0 auto 17px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 22px;
  background: linear-gradient(145deg, #ffae67, #ef6c31);
  box-shadow: 0 12px 28px rgba(220, 102, 39, 0.2);
  color: #fff;
  font-size: 34px;
  font-weight: 800;
}

.eyebrow {
  margin: 0 0 6px;
  color: #a0a9b6;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 1.8px;
}

.hero h1 {
  margin: 0;
  font-size: 29px;
  font-weight: 750;
  letter-spacing: 0.3px;
}

.hero-copy {
  margin: 10px 0 14px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.meta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: #929baa;
  font-size: 12px;
}

.meta-divider {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #c5ccd6;
}

.card {
  margin-top: 12px;
  padding: 22px;
  border: 1px solid rgba(230, 235, 242, 0.85);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: 0 12px 34px rgba(29, 39, 53, 0.055);
}

.platform-heading {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 12px;
}

.platform-icon {
  display: grid;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 14px;
  font-size: 22px;
  font-weight: 750;
}

.android-icon {
  background: #e9f8ee;
  color: #26964a;
}

.ios-icon {
  background: #edf2ff;
  color: #4373df;
}

.other-icon {
  background: #fff2e8;
  color: var(--brand-dark);
}

.platform-heading .eyebrow {
  margin-bottom: 3px;
}

.platform-heading h2,
.update-card h2 {
  margin: 0;
  font-size: 19px;
  font-weight: 720;
}

.panel-copy {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.download-btn {
  display: flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  transition: filter 0.15s ease, transform 0.15s ease;
}

.download-btn:hover {
  filter: brightness(1.04);
}

.download-btn:active {
  transform: scale(0.99);
}

.download-btn.android {
  background: linear-gradient(100deg, #29a85c, #208c4b);
  box-shadow: 0 8px 18px rgba(37, 157, 83, 0.18);
}

.download-btn.ios {
  background: linear-gradient(100deg, #5684ee, #3768d2);
  box-shadow: 0 8px 18px rgba(63, 112, 220, 0.18);
}

.helper-text {
  margin: 11px 0 0;
  color: #a0a9b6;
  font-size: 12px;
  text-align: center;
}

.steps {
  display: grid;
  gap: 18px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.steps li > span {
  display: grid;
  width: 26px;
  height: 26px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  background: #f0f4ff;
  color: #4a75d6;
  font-size: 12px;
  font-weight: 750;
}

.steps strong {
  display: block;
  margin: 2px 0 4px;
  font-size: 14px;
}

.steps p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.notice {
  margin: 20px 0 0;
  padding: 11px 12px;
  border-radius: 11px;
  background: #f7f8fa;
  color: #818b9b;
  font-size: 12px;
  line-height: 1.65;
}

.update-card h2 {
  margin-bottom: 10px;
  font-size: 16px;
}

.note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.75;
  white-space: pre-wrap;
}

.empty-tip {
  margin: 12px 4px 0;
  color: #a16a38;
  font-size: 12px;
  line-height: 1.6;
  text-align: center;
}

footer {
  padding: 22px 0 0;
  color: #a6afbb;
  font-size: 11px;
  text-align: center;
}

@media (max-width: 420px) {
  .page {
    width: min(100% - 24px, 520px);
    padding-top: 30px;
  }

  .card {
    padding: 19px 17px;
    border-radius: 17px;
  }
}