:root {
  --bg: #f4f5f7;
  --card: #fff;
  --text: #1c1c1e;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #2563eb;
  --danger: #dc2626;
  --ok: #15803d;
}

* { box-sizing: border-box; }

body.page {
  margin: 0;
  min-height: 100vh;
  font-family: "SF Pro Text", "PingFang SC", "Hiragino Sans GB", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

.top h1 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 650;
}

.wrap {
  max-width: 52rem;
  margin: 0 auto;
  padding: 1.25rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.35rem;
  margin-bottom: 1rem;
}

.card.narrow {
  max-width: 22rem;
  margin: 12vh auto;
}

.card h2 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.muted { color: var(--muted); font-size: 0.875rem; margin: 0.25rem 0 1rem; }
.error { color: var(--danger); font-size: 0.875rem; }
.ok { color: var(--ok); font-size: 0.875rem; }

.stack { display: grid; gap: 0.85rem; }

label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.875rem;
}

input[type="text"],
input[type="password"],
input[type="file"],
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  font: inherit;
  background: #fff;
}

textarea { min-height: 5rem; resize: vertical; }

button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border: none;
  border-radius: 8px;
  padding: 0.55rem 1rem;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

button.secondary, .btn.secondary {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
}

.grid-2 {
  display: grid;
  gap: 1rem;
}

@media (min-width: 720px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
}

.platform {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.9rem;
  background: #fafafa;
}

.platform h3 {
  margin: 0 0 0.65rem;
  font-size: 0.875rem;
}

.kv {
  display: grid;
  gap: 0.35rem;
  font-size: 0.8rem;
  margin-top: 0.75rem;
}

.kv code {
  word-break: break-all;
  background: #f3f4f6;
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  display: block;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

th, td {
  text-align: left;
  padding: 0.5rem 0.35rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th { color: var(--muted); font-weight: 500; }