/* Onboarding / 接入流程页 */
.onboarding-page {
  padding: 48px 0 80px;
  background:
    radial-gradient(900px 480px at 10% 0%, rgba(0, 102, 255, 0.08), transparent 55%),
    radial-gradient(700px 420px at 90% 20%, rgba(0, 102, 255, 0.05), transparent 50%),
    var(--bg-light);
  min-height: calc(100vh - 80px);
}

.onboarding-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

.onboarding-container .back-link {
  display: inline-block;
  margin-bottom: 1.5rem;
  color: var(--primary-blue);
  text-decoration: none;
  font-weight: 500;
}

.onboarding-container .back-link:hover {
  text-decoration: underline;
}

.onboarding-hero {
  text-align: center;
  margin-bottom: 3rem;
}

.onboarding-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: var(--text-dark);
  margin-bottom: 0.75rem;
  line-height: 1.25;
}

.onboarding-hero p {
  color: var(--text-light);
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto 1.5rem;
  line-height: 1.7;
}

.onboarding-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 1.5rem;
  margin-top: 1rem;
}

.onboarding-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-light);
}

.onboarding-legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.onboarding-legend-dot.is-client {
  background: #0066ff;
}

.onboarding-legend-dot.is-adsplusx {
  background: #0d9488;
}

/* Timeline */
.onboarding-timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.onboarding-timeline::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 32px;
  bottom: 32px;
  width: 3px;
  background: linear-gradient(180deg, #0066ff 0%, #0d9488 100%);
  border-radius: 2px;
  opacity: 0.25;
}

.onboarding-step {
  position: relative;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 0 1.25rem;
  padding-bottom: 2rem;
}

.onboarding-step:last-child {
  padding-bottom: 0;
}

.onboarding-step-marker {
  position: relative;
  z-index: 1;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #0066ff, #0047b3);
  box-shadow: 0 4px 16px rgba(0, 102, 255, 0.35);
  flex-shrink: 0;
}

.onboarding-step:nth-child(even) .onboarding-step-marker {
  background: linear-gradient(135deg, #0d9488, #0f766e);
  box-shadow: 0 4px 16px rgba(13, 148, 136, 0.35);
}

.onboarding-step-card {
  background: var(--white);
  border-radius: 14px;
  padding: 1.5rem 1.75rem;
  box-shadow: var(--shadow);
  border: 1px solid rgba(0, 102, 255, 0.08);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.onboarding-step-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.onboarding-step-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
  margin-bottom: 1rem;
}

.onboarding-step-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0;
}

.onboarding-role-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.onboarding-role-badge.is-client {
  background: #e6f2ff;
  color: #0047b3;
}

.onboarding-role-badge.is-adsplusx {
  background: #ccfbf1;
  color: #0f766e;
}

.onboarding-role-badge i {
  font-size: 0.75rem;
}

.onboarding-task-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.onboarding-task-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  line-height: 1.6;
  color: var(--text-dark);
  font-size: 0.98rem;
}

.onboarding-task-list li::before {
  content: '';
  flex: 0 0 8px;
  width: 8px;
  height: 8px;
  margin-top: 0.55rem;
  border-radius: 50%;
  background: var(--primary-blue);
}

.onboarding-step:nth-child(even) .onboarding-task-list li::before {
  background: #0d9488;
}

.onboarding-cta {
  margin-top: 3rem;
  text-align: center;
  padding: 2rem;
  background: var(--white);
  border-radius: 14px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(0, 102, 255, 0.1);
}

.onboarding-cta h2 {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.onboarding-cta p {
  color: var(--text-light);
  margin-bottom: 1.25rem;
}

.onboarding-cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

@media (max-width: 640px) {
  .onboarding-timeline::before {
    left: 22px;
  }

  .onboarding-step {
    grid-template-columns: 44px 1fr;
    gap: 0 0.85rem;
  }

  .onboarding-step-marker {
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }

  .onboarding-step-card {
    padding: 1.15rem 1.25rem;
  }

  .onboarding-step-title {
    font-size: 1.1rem;
  }
}