:root {
  --color-primary: #1c69d4;
  --color-primary-active: #0653b6;
  --color-ink: #262626;
  --color-body: #3c3c3c;
  --color-muted: #6b6b6b;
  --color-hairline: #e6e6e6;
  --color-canvas: #ffffff;
  --color-surface-soft: #f7f7f7;
  --color-surface-card: #fafafa;
  --color-surface-dark: #1a2129;
  --color-on-primary: #ffffff;
  --color-on-dark: #ffffff;
  --color-on-dark-soft: #bbbbbb;
  --font: "BMW Type Next Latin", system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --rounded-none: 0px;
}

* { box-sizing: border-box; }
html { background: var(--color-surface-soft); }
body {
  margin: 0 auto;
  max-width: 390px;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--color-body);
  background: var(--color-canvas);
  line-height: 1.55;
  padding-bottom: 56px;
  font-size: 16px;
  font-weight: 300;
}
a { color: var(--color-ink); text-decoration: none; }

.top {
  padding: 0 16px;
  display: flex; align-items: center; justify-content: space-between;
  min-height: 64px; background: var(--color-canvas);
  border-bottom: 1px solid var(--color-hairline);
  position: sticky; top: 0;
}
.logo { font-weight: 700; color: var(--color-ink); font-size: 16px; letter-spacing: 0.5px; }
.back { font-size: 12px; color: var(--color-muted); letter-spacing: 0.5px; }

.hero {
  padding: 40px 16px;
  background: var(--color-surface-dark);
  color: var(--color-on-dark);
}
.hero h1 { font-size: 32px; font-weight: 700; line-height: 1.1; margin: 0 0 8px; color: var(--color-on-dark); }
.hero p { margin: 0; color: var(--color-on-dark-soft); font-size: 14px; }

.block { padding: 16px; }
.block h2 { font-size: 20px; font-weight: 700; color: var(--color-ink); margin: 0 0 12px; }

.cell {
  display: block; color: var(--color-ink);
  padding: 0 0 16px; margin-bottom: 8px;
}
.cell:hover { text-decoration: none; }
.cell h3 { margin: 8px 0 4px; font-size: 16px; font-weight: 700; }
.cell p { margin: 0; color: var(--color-muted); font-size: 14px; font-weight: 300; }

.row {
  display: flex; justify-content: space-between; gap: 8px;
  padding: 12px 0; border-bottom: 1px solid var(--color-hairline); font-size: 14px;
}
.row:last-child { border-bottom: 0; }
.row span { color: var(--color-muted); }
.row b { font-weight: 700; color: var(--color-ink); }

.ph {
  background: var(--color-surface-card); color: var(--color-muted);
  height: 120px; display: flex; align-items: center; justify-content: center; font-size: 13px;
}

form label { display: block; margin: 0 0 4px; font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; }
form input, form textarea {
  width: 100%; padding: 14px 16px; border: 1px solid var(--color-hairline);
  border-radius: 0; font: inherit; margin-bottom: 12px;
}
form button {
  width: 100%; padding: 14px; border: 0;
  background: var(--color-primary); color: var(--color-on-primary);
  font: inherit; font-weight: 700; letter-spacing: 0.5px;
}

.tab {
  position: fixed; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 100%; max-width: 390px;
  display: flex; background: var(--color-canvas);
  border-top: 1px solid var(--color-hairline);
}
.tab a { flex: 1; text-align: center; padding: 10px 0; font-size: 11px; color: var(--color-muted); letter-spacing: 0.3px; }
.tab a.on { color: var(--color-primary); font-weight: 700; }

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