/* ============================================
   responsive.css — 响应式断点适配
   断点：≤1024 平板横 / ≤768 平板竖 / ≤560 手机
   ============================================ */

/* ---------- ≤1024px ---------- */
@media (max-width: 1024px) {
  :root {
    --fs-2xl: 2rem;
    --fs-xl: 1.75rem;
    --space-8: 4rem;
  }

  .hero__inner,
  .about__inner,
  .appointment__inner {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .hero__media img,
  .about__img img {
    height: 340px;
  }

  .hero__content {
    text-align: center;
  }

  .hero__desc {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .quick-services__grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6) var(--space-4);
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
  }

  .visit__inner {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

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

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

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

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

  .insurance-quick {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- ≤768px：折叠导航 ---------- */
@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  /* 资讯详情页：侧栏下移到正文下方 */
  .article__layout {
    grid-template-columns: 1fr;
  }

  .article__sidebar {
    position: static;
  }

  .article__main {
    padding: var(--space-4);
  }

  .article__meta {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .article__nav-item--next {
    text-align: left;
    align-items: flex-start;
  }

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

  .insurance-tip {
    flex-direction: column;
    gap: var(--space-2);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
  }

  .nav.is-open {
    max-height: 420px;
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-3) var(--space-5);
  }

  .nav__link {
    display: block;
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border);
  }

  .nav__link::after {
    display: none;
  }

  /* 小屏隐藏搜索框，保留语言切换 */
  .header-search {
    display: none;
  }

  .guides__grid,
  .news__grid {
    grid-template-columns: 1fr;
  }

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

/* ---------- ≤560px：手机 ---------- */
@media (max-width: 560px) {
  :root {
    --fs-2xl: 1.625rem;
    --fs-xl: 1.5rem;
    --space-7: 2rem;
    --space-8: 3rem;
  }

  .container {
    padding: 0 var(--space-4);
  }

  .quick-services__grid,
  .departments__grid,
  .doctors__grid,
  .stats__grid {
    grid-template-columns: 1fr 1fr;
  }

  .quick-services__grid {
    gap: var(--space-2);
    padding: var(--space-3);
  }

  .quick-service {
    padding: var(--space-3);
  }

  .insurance-quick {
    grid-template-columns: 1fr 1fr;
  }

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

  .hero__media img,
  .about__img img {
    height: 240px;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .appointment-panel {
    padding: var(--space-5) var(--space-4);
  }

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

  .doctor-card__photo img {
    height: 240px;
  }

  .visit__media img {
    height: 280px;
  }

  .culture__grid,
  .honors__grid {
    grid-template-columns: 1fr;
  }

  .dept__inner {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .doctor__inner {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .doctor__media {
    max-width: 360px;
  }

  .resume__inner {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .resume__certs {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .scope__grid,
  .tech__grid {
    grid-template-columns: 1fr;
  }

  .appt-notice__grid {
    grid-template-columns: 1fr;
  }

  .dept-cta__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .dept-cta__actions {
    width: 100%;
  }

  .dept-cta__actions .btn {
    flex: 1;
    text-align: center;
  }

  .back-top {
    right: 16px;
    bottom: 16px;
  }
}

/* ---------- 大屏微调 ---------- */
@media (min-width: 1400px) {
  :root {
    --container-width: 1280px;
  }
}