/* ========================================
   女王AI获客工作室 - 响应式断点覆盖
   Tablet / Mobile / Small Mobile
   ======================================== */

/* === Tablet ≤ 1024px === */
@media (max-width: 1024px) {
  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .split-layout {
    grid-template-columns: 1fr;
    gap: var(--sp-lg);
  }

  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-steps {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--sp-md);
  }

  .process-steps::before {
    display: none;
  }

  .process-step {
    flex: 0 0 calc(33.33% - var(--sp-md));
  }

  .case-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .diagnosis-section__items {
    grid-template-columns: 1fr 1fr;
  }
}

/* === Mobile ≤ 768px === */
@media (max-width: 768px) {
  :root {
    --sp-section: clamp(2rem, 6vw, 3rem);
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .nav__links {
    display: none;
  }

  .nav__menu-btn {
    display: flex;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-md);
  }

  .hero {
    padding: var(--sp-xl) 0;
  }

  .hero__title {
    font-size: clamp(1.5rem, 4vw, 2rem);
  }

  .hero__actions {
    flex-direction: column;
    gap: var(--sp-sm);
  }

  .hero__actions .btn {
    width: 100%;
  }

  .process-step {
    flex: 0 0 calc(50% - var(--sp-sm));
  }

  .case-stats {
    grid-template-columns: 1fr 1fr;
  }

  .cta-section__actions {
    flex-direction: column;
    gap: var(--sp-sm);
  }

  .cta-section__actions .btn {
    width: 100%;
    max-width: 280px;
  }

  .filter-tags {
    flex-wrap: wrap;
  }

  .float-cta__trigger {
    width: 48px;
    height: 48px;
  }

  .float-cta__icon {
    width: 24px;
    height: 24px;
  }

  .float-cta__panel {
    bottom: 60px;
    right: -0.5rem;
    width: calc(100vw - 2rem);
    max-width: 300px;
  }

  .diagnosis-section__items {
    grid-template-columns: 1fr;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }
}

/* === Small Mobile ≤ 480px === */
@media (max-width: 480px) {
  .container {
    padding-left: var(--sp-sm);
    padding-right: var(--sp-sm);
  }

  :root {
    --sp-section: 2rem;
  }

  .process-step {
    flex: 0 0 100%;
  }

  .float-cta {
    bottom: 1rem;
    right: 1rem;
  }

  .service-card {
    padding: var(--sp-md);
  }

  .stat-card {
    padding: var(--sp-md);
  }
}