:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: #241c0e;
  background: #fff7df;
  letter-spacing: 0;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: linear-gradient(#ffd75e 0 226px, #fff7df 226px 100%); }
button, a { font: inherit; }

.shell {
  width: min(100%, 520px);
  margin: 0 auto;
  padding: max(34px, env(safe-area-inset-top)) 18px calc(96px + env(safe-area-inset-bottom));
}

.brand { display: flex; align-items: center; gap: 13px; min-height: 78px; margin-bottom: 18px; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  flex: 0 0 52px;
  border-radius: 8px;
  background: #fffaf0;
  color: #9b5a00;
  font-size: 24px;
  font-weight: 900;
  box-shadow: 0 8px 24px rgb(142 87 0 / 12%);
}

h1, h2, p { margin: 0; }
h1 { font-size: 20px; line-height: 1.3; }
.brand p { margin-top: 7px; color: #75531d; font-size: 14px; }

.panel {
  padding: 22px 18px;
  border: 1px solid #efc862;
  border-radius: 8px;
  background: #fffdf8;
  box-shadow: 0 18px 50px rgb(129 82 0 / 10%);
}

.eyebrow { color: #a76800; font-size: 13px; font-weight: 800; }
h2 { margin-top: 6px; font-size: 22px; line-height: 1.4; }
.intro { margin-top: 12px; color: #6f6250; font-size: 15px; line-height: 1.7; }
.site-address {
  margin-top: 22px;
  padding: 17px 12px;
  overflow-wrap: anywhere;
  border: 1px solid #efd593;
  border-radius: 7px;
  background: #fff8e5;
  color: #7d4c00;
  font-size: 21px;
  font-weight: 900;
  text-align: center;
}

.primary {
  width: 100%;
  min-height: 50px;
  margin-top: 14px;
  border: 0;
  border-radius: 7px;
  background: #ffbf1f;
  color: #211600;
  cursor: pointer;
  font-weight: 800;
  box-shadow: 0 8px 18px rgb(255 173 0 / 22%);
}
.copy-status { margin-top: 12px; color: #766a58; font-size: 13px; line-height: 1.6; text-align: center; }

.bottom-nav {
  position: fixed;
  z-index: 30;
  right: 0;
  bottom: 0;
  left: 0;
  height: calc(68px + env(safe-area-inset-bottom));
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 7px max(16px, calc((100vw - 520px) / 2)) env(safe-area-inset-bottom);
  border-top: 1px solid #e7d59c;
  background: rgb(255 253 247 / 97%);
  box-shadow: 0 -8px 24px rgb(92 62 0 / 10%);
}
.bottom-nav-item {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #876611;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}
.bottom-nav-item.is-active { color: #2f2304; }
.bottom-nav-icon {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid #dfc369;
  border-radius: 7px;
  background: #fff6cf;
  font-size: 11px;
  font-weight: 900;
}
.bottom-nav-item.is-active .bottom-nav-icon { border-color: #f4b20e; background: #ffca2d; }