.ocb-portal {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  max-width: 900px;
  margin: 40px auto;
}

.ocb-header {
  background: linear-gradient(135deg, #0078ff, #00c6ff);
  color: #fff;
  padding: 50px 30px;
  border-radius: 14px;
  text-align: center;
}

.ocb-section {
  background: #fff;
  margin-top: 30px;
  padding: 30px;
  border-radius: 14px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

.ocb-banner img {
  max-width: 100%;
  margin-bottom: 10px;
}

.ocb-banner code {
  display: block;
  background: #f6f8fb;
  padding: 12px;
  border-radius: 8px;
  font-size: 13px;
  overflow-x: auto;
}

.ocb-swipe {
  background: #f6f8fb;
  padding: 20px;
  border-radius: 10px;
  font-size: 14px;
}

.ocb-banner {
  margin-bottom: 40px;
}

.ocb-banner img {
  max-width: 100%;
  display: block;
  margin-bottom: 10px;
}

.ocb-banner code {
  display: block;
  background: #f6f8fb;
  padding: 12px;
  border-radius: 8px;
  font-size: 13px;
  overflow-x: auto;
}

.ocb-banner textarea {
  width: 100%;
  height: 90px;
  font-family: monospace;
  font-size: 13px;
  padding: 10px;
}

.ocb-copy-btn {
  background: #0078ff;
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  margin-bottom: 10px;
}

.ocb-copy-btn:hover {
  background: #005fd1;
}

.ocb-copy-code {
  background: #f6f8fb;
  padding: 12px;
  border-radius: 8px;
  font-size: 13px;
  overflow-x: auto;
}

.ocb-copy-btn {
  background: #0078ff;
  color: #fff;
  border: none;
  padding: 10px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  margin-top: 12px;
}

.ocb-copy-btn:hover {
  background: #005fcc;
}