:root {
  --color-primary: #494fdf;
  --color-primary-bright: #4f55f1;
  --color-on-primary: #ffffff;
  --color-ink: #191c1f;
  --color-mute: #505a63;
  --color-stone: #8d969e;
  --color-faint: #c9c9cd;
  --color-on-dark: #ffffff;
  --color-on-dark-mute: rgba(255, 255, 255, 0.72);
  --color-canvas-light: #ffffff;
  --color-canvas-dark: #000000;
  --color-surface-soft: #f4f4f4;
  --color-surface-elevated: #16181a;
  --color-hairline-dark: rgba(255, 255, 255, 0.12);
  --color-accent-teal: #00a87e;
  --color-accent-pink: #e61e49;
  --color-link: #376cd5;
  --rounded-md: 12px;
  --rounded-lg: 20px;
  --rounded-full: 9999px;
  --font-display: "Aeonik Pro", Inter, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: Inter, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { background: #111; }
body {
  margin: 0 auto;
  max-width: 390px;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--color-on-dark);
  background: var(--color-canvas-dark);
  line-height: 1.5;
  padding-bottom: 64px;
  letter-spacing: 0.24px;
}
a { color: var(--color-link); text-decoration: none; }

.top {
  height: 56px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-canvas-dark);
}
.logo {
  font-family: var(--font-display);
  color: var(--color-on-dark);
  font-size: 18px;
  font-weight: 500;
}
.logo:before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 2px;
  margin-right: 8px;
  vertical-align: middle;
}
.back { font-size: 12px; color: var(--color-on-dark-mute); }

.hero { padding: 32px 16px 40px; }
.hero h1 {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.8px;
  margin: 0 0 12px;
}
.hero p { margin: 0; color: var(--color-on-dark-mute); font-size: 15px; }

.block { padding: 20px 16px; }
.block.light {
  background: var(--color-canvas-light);
  color: var(--color-ink);
}
.block h2 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  margin: 0 0 12px;
}

.cell {
  display: block;
  background: var(--color-surface-elevated);
  border-radius: var(--rounded-lg);
  padding: 16px;
  margin-bottom: 8px;
  color: var(--color-on-dark);
}
.light .cell {
  background: var(--color-surface-soft);
  color: var(--color-ink);
}
.cell:hover { text-decoration: none; }
.cell h3 { margin: 0 0 4px; font-size: 16px; font-family: var(--font-display); font-weight: 500; }
.cell p { margin: 0; color: var(--color-on-dark-mute); font-size: 13px; }
.light .cell p { color: var(--color-mute); }

.row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-hairline-dark);
  font-size: 14px;
}
.light .row { border-bottom-color: #e2e2e7; color: var(--color-ink); }
.row:last-child { border-bottom: 0; }
.row span { color: var(--color-stone); }
.row b { font-weight: 600; font-family: var(--font-display); }

.ph {
  background: var(--color-surface-elevated);
  color: var(--color-stone);
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  margin-bottom: 12px;
  border-radius: 28px;
}
.pill {
  display: inline-flex;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--rounded-full);
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 8px;
}

form label { display: block; margin: 0 0 4px; font-size: 13px; color: var(--color-on-dark-mute); }
form input, form textarea {
  width: 100%;
  padding: 14px 16px;
  border: none;
  background: var(--color-surface-elevated);
  color: var(--color-on-dark);
  font: inherit;
  margin-bottom: 12px;
  border-radius: var(--rounded-md);
  min-height: 56px;
}
form button {
  width: 100%;
  height: 48px;
  border: none;
  background: var(--color-canvas-light);
  color: var(--color-canvas-dark);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--rounded-full);
}

.tab {
  position: fixed;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 100%;
  max-width: 390px;
  display: flex;
  background: var(--color-canvas-dark);
  border-top: 1px solid var(--color-hairline-dark);
}
.tab a {
  flex: 1;
  text-align: center;
  padding: 12px 0;
  font-size: 11px;
  color: var(--color-stone);
  font-weight: 600;
}
.tab a.on { color: var(--color-on-dark); }

.ph { overflow: hidden; }
.ph img { width: 100%; height: 100%; object-fit: cover; display: block; }