:root {
  --color-primary: #000000;
  --color-on-primary: #ffffff;
  --color-ink: #000000;
  --color-body: #5e5e5e;
  --color-mute: #afafaf;
  --color-canvas: #ffffff;
  --color-canvas-soft: #efefef;
  --rounded-md: 8px;
  --rounded-xl: 16px;
  --rounded-pill: 999px;
  --font-display: UberMove, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --font-text: UberMoveText, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--color-canvas-soft); }
body {
  margin: 0 auto;
  max-width: 390px;
  min-height: 100vh;
  font-family: var(--font-text);
  color: var(--color-ink);
  background: var(--color-canvas);
  line-height: 1.4;
  padding-bottom: 72px;
}
a { color: var(--color-ink); text-decoration: none; }

.top {
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo { font-family: var(--font-display); font-weight: 700; font-size: 22px; color: var(--color-ink); }
.back { font-size: 12px; color: var(--color-body); }

.hero { padding: 8px 16px 24px; }
.hero h1 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  line-height: 40px;
  margin: 0 0 8px;
}
.hero p { margin: 0 0 16px; color: var(--color-body); font-size: 14px; }

.request {
  background: var(--color-canvas);
  border-radius: var(--rounded-xl);
  padding: 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.16);
}
.field {
  background: var(--color-canvas-soft);
  border-radius: var(--rounded-md);
  padding: 12px 16px;
  margin-bottom: 8px;
  font-size: 14px;
}

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 44px;
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--rounded-pill);
  font-weight: 500;
  text-decoration: none;
}

.block { padding: 16px; }
.block.dark { background: var(--color-ink); color: var(--color-on-primary); }
.block.dark a { color: var(--color-on-primary); }
.block h2 { font-family: var(--font-display); font-size: 20px; font-weight: 700; margin: 0 0 12px; }

.cell {
  display: block;
  background: var(--color-canvas-soft);
  border-radius: var(--rounded-xl);
  padding: 16px;
  margin-bottom: 8px;
  color: var(--color-ink);
}
.cell h3 { margin: 0 0 4px; font-family: var(--font-display); font-size: 16px; font-weight: 700; }
.cell p { margin: 0; color: var(--color-body); font-size: 13px; }

.row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 12px 0;
  border-bottom: 1px solid #e2e2e2;
  font-size: 14px;
}
.row:last-child { border-bottom: 0; }
.row span { color: var(--color-body); }

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

form label { display: block; margin: 0 0 4px; font-size: 14px; font-weight: 500; }
form input, form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 0;
  background: var(--color-canvas-soft);
  border-radius: var(--rounded-md);
  font: inherit;
  margin-bottom: 12px;
}
form button { width: 100%; border: 0; }

.tab {
  position: fixed;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 100%;
  max-width: 390px;
  display: flex;
  background: var(--color-canvas);
  box-shadow: 0 -2px 8px rgba(0,0,0,0.08);
}
.tab a {
  flex: 1;
  text-align: center;
  padding: 12px 0;
  font-size: 11px;
  font-weight: 500;
  color: var(--color-body);
}
.tab a.on {
  color: var(--color-on-primary);
  background: var(--color-primary);
  border-radius: var(--rounded-pill);
  margin: 8px 4px;
  padding: 8px 0;
}

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