:root {
  --color-primary: #1c1c1e;
  --color-on-primary: #ffffff;
  --color-brand-yellow: #ffd02f;
  --color-brand-blue: #4262ff;
  --color-coral-light: #ffc6c6;
  --color-rose-light: #fde0f0;
  --color-teal-light: #c3faf5;
  --color-canvas: #ffffff;
  --color-surface: #f7f8fa;
  --color-hairline: #e0e2e8;
  --color-hairline-strong: #c7cad5;
  --color-ink: #1c1c1e;
  --color-ink-deep: #050038;
  --color-steel: #6b6f7e;
  --color-footer-bg: #1c1c1e;
  --rounded-md: 8px;
  --rounded-xl: 16px;
  --rounded-xxxl: 28px;
  --rounded-full: 9999px;
  --font: "Roobert PRO", "Noto Sans", system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--color-surface); }
body {
  margin: 0 auto;
  max-width: 390px;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--color-ink);
  background: var(--color-canvas);
  line-height: 1.5;
  padding-bottom: 64px;
}
a { color: var(--color-brand-blue); text-decoration: none; }

.promo {
  background: var(--color-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 500;
  text-align: center;
  padding: 10px 16px;
}
.top {
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-canvas);
}
.logo {
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-brand-yellow);
  padding: 4px 10px;
  border-radius: 8px;
}
.back { font-size: 12px; color: var(--color-steel); }

.hero { padding: 28px 16px 20px; text-align: center; }
.hero h1 {
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.8px;
  line-height: 1.1;
  margin: 0 0 8px;
  color: var(--color-ink-deep);
}
.hero p { margin: 0 0 16px; color: var(--color-steel); font-size: 14px; }
.btn {
  display: inline-flex;
  background: var(--color-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  padding: 12px 24px;
  border-radius: var(--rounded-full);
}
.btn:hover { text-decoration: none; color: #fff; }

.block { padding: 16px; border-top: 1px solid var(--color-hairline); }
.block h2 { font-size: 15px; font-weight: 500; margin: 0 0 12px; }

.note {
  display: block;
  border-radius: var(--rounded-xxxl);
  padding: 16px;
  margin-bottom: 8px;
  color: var(--color-ink);
}
.note:hover { text-decoration: none; }
.note h3 { margin: 0 0 4px; font-size: 16px; }
.note p { margin: 0; font-size: 13px; }
.n-y { background: var(--color-brand-yellow); }
.n-c { background: var(--color-coral-light); }
.n-t { background: var(--color-teal-light); }
.n-r { background: var(--color-rose-light); }

.cell {
  display: block;
  border: 1px solid var(--color-hairline);
  padding: 12px;
  margin-bottom: 8px;
  color: var(--color-ink);
  border-radius: var(--rounded-xl);
}
.cell:hover { text-decoration: none; }
.cell h3 { margin: 0 0 4px; font-size: 15px; }
.cell p { margin: 0; color: var(--color-steel); 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 { color: var(--color-steel); }

.ph {
  background: var(--color-surface);
  color: var(--color-steel);
  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; }
form input, form textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--color-hairline-strong);
  font: inherit;
  margin-bottom: 12px;
  border-radius: var(--rounded-md);
  height: 44px;
}
form textarea { height: auto; }
form input:focus { outline: none; border: 2px solid var(--color-brand-blue); }
form button {
  width: 100%;
  padding: 12px;
  border: 0;
  background: var(--color-primary);
  color: #fff;
  font: inherit;
  font-weight: 500;
  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-footer-bg);
  padding: 6px 8px 10px;
}
.tab a {
  flex: 1;
  text-align: center;
  padding: 8px 0;
  font-size: 11px;
  font-weight: 500;
  color: #a5a8b5;
  border-radius: var(--rounded-full);
}
.tab a.on { color: var(--color-primary); background: var(--color-brand-yellow); }

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