:root {
  --color-primary: #000000;
  --color-on-primary: #ffffff;
  --color-ink: #000000;
  --color-body: #959494;
  --color-hairline: #ebebeb;
  --color-canvas: #ffffff;
  --color-canvas-dark: #010120;
  --color-surface-dark-soft: #313641;
  --color-on-dark: #ffffff;
  --color-accent-orange: #fc4c02;
  --color-accent-magenta: #ef2cc1;
  --color-accent-periwinkle: #bdbbff;
  --color-accent-mint: #c8f6f9;
  --rounded-sm: 4px;
  --rounded-full: 9999px;
  --font: "The Future", Inter, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --font-mono: "PP Neue Montreal Mono", ui-monospace, Menlo, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", monospace;
}

* { box-sizing: border-box; }
html { background: var(--color-canvas-dark); }
body {
  margin: 0 auto;
  max-width: 390px;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--color-ink);
  background: var(--color-canvas);
  line-height: 1.4;
  padding-bottom: 64px;
  letter-spacing: -0.16px;
}
a { color: var(--color-ink); text-decoration: none; }

.top {
  background: var(--color-canvas-dark);
  color: var(--color-on-dark);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo { font-weight: 500; color: var(--color-on-dark); }
.back {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.55px;
  text-transform: uppercase;
  color: var(--color-accent-periwinkle);
}

.hero {
  padding: 28px 16px 32px;
  background: var(--color-canvas-dark);
  color: var(--color-on-dark);
}
.hero h1 {
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -0.8px;
  line-height: 1.1;
  margin: 8px 0 10px;
}
.hero p { margin: 0 0 12px; color: #c8c8d4; font-size: 14px; }
.ribbon {
  height: 72px;
  border-radius: var(--rounded-sm);
  background: linear-gradient(115deg, var(--color-accent-orange), var(--color-accent-magenta), var(--color-accent-periwinkle));
}

.block { padding: 16px; border-bottom: 1px solid var(--color-hairline); }
.block.dark { background: var(--color-canvas-dark); color: var(--color-on-dark); border: 0; }
.block h2 { font-size: 22px; font-weight: 500; letter-spacing: -0.22px; margin: 0 0 12px; }

.cell {
  display: block;
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-sm);
  padding: 12px;
  margin-bottom: 8px;
  color: var(--color-ink);
}
.cell h3 { margin: 0 0 4px; font-size: 16px; font-weight: 500; }
.cell p { margin: 0; color: var(--color-body); font-size: 13px; }

.row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-hairline);
  font-size: 14px;
}
.row:last-child { border-bottom: 0; }
.row span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.55px;
  text-transform: uppercase;
  color: var(--color-body);
}

.ph {
  background: var(--color-hairline);
  color: var(--color-body);
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  margin-bottom: 12px;
  border-radius: var(--rounded-sm);
}

form label {
  display: block;
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.55px;
}
form input, form textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--rounded-sm);
  font: inherit;
  margin-bottom: 12px;
}
form button {
  width: 100%;
  padding: 12px;
  border: 0;
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.08px;
  text-transform: uppercase;
  border-radius: var(--rounded-sm);
}

.tab {
  position: fixed;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 100%;
  max-width: 390px;
  display: flex;
  background: var(--color-canvas-dark);
}
.tab a {
  flex: 1;
  text-align: center;
  padding: 10px 0 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.55px;
  text-transform: uppercase;
  color: #8a8aa0;
}
.tab a.on { color: var(--color-accent-mint); }

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