/* 思政教育页移动端：以首页首屏的文字层级和卡片密度为基准。 */
@media (max-width: 820px) {
  html, body { min-width: 0; overflow-x: hidden; }
  body[data-page="sizheng"] .container { width: min(calc(100% - 36px), 680px); }
  body[data-page="sizheng"] main > .section { padding: 36px 0; }

  /* 公共头尾同步首页移动端节奏。 */
  .site-header { position: sticky; top: 0; z-index: 200; }
  .header-inner { min-height: 58px; gap: 12px; }
  .brand { flex-basis: 108px; }
  .brand img { width: 108px; }
  .main-nav { display: none !important; }
  .header-inner .button-small { display: none !important; }
  .nav-toggle { display: inline-flex !important; flex: 0 0 34px; width: 34px; height: 34px; margin-left: auto; }
  .compact-nav { position: fixed; top: 58px; right: 12px; left: 12px; grid-template-columns: repeat(2, minmax(0, 1fr)); border-radius: 6px; }
  /* 页脚由 homepage-footer-v3.css 的共享移动端规则统一控制，保持与首页一致。 */

  #sizheng-intro .inner-hero-actions .button {
    display: inline-flex;
    width: fit-content !important;
    min-width: 0;
    min-height: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    color: #f0bd6b;
    background: transparent;
    font-size: 12px;
  }
  body[data-page="sizheng"] #sizheng-intro .inner-hero-actions .button-ghost { display: none !important; }
  body[data-page="sizheng"] #sizheng-intro .inner-hero-actions .button::after { margin-left: 6px; content: "→"; font-size: 15px; line-height: 1; }
  /* 首屏分为上下两个稳定区域：文案与行动入口在上，能力图标固定在底部。 */
  #sizheng-intro.sizheng-hero { height: 338px !important; min-height: 338px !important; overflow: hidden; }
  #sizheng-intro.sizheng-hero::before { z-index: 0; width: 100%; opacity: 1; background: linear-gradient(90deg, rgba(0, 0, 0, .86), rgba(0, 0, 0, .64)), var(--sizheng-hero-image) right center / auto 100% no-repeat; }
  #sizheng-intro .sizheng-hero-grid { position: relative; z-index: 2; display: block; height: 338px !important; min-height: 338px !important; }
  #sizheng-intro .inner-hero-copy { display: flex; flex-direction: column; align-self: stretch; box-sizing: border-box; height: 338px !important; min-height: 338px !important; padding: 52px 18px 18px !important; }
  #sizheng-intro .inner-hero-copy h1 { margin-bottom: 8px !important; }
  #sizheng-intro .inner-hero-copy > p { line-height: 1.55 !important; }
  #sizheng-intro .inner-hero-actions { display: flex !important; align-self: stretch; justify-content: flex-end !important; width: 100%; margin-top: 10px !important; }
  #sizheng-intro .inner-hero-actions .button { margin-left: auto; }
  #sizheng-intro .sizheng-hero-capabilities { position: static; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin: auto 0 35px; padding: 0; border: 0; background: transparent; }
  #sizheng-intro .sizheng-hero-capabilities > div { display: flex; flex-direction: column; align-items: center; justify-content: center; min-width: 0; min-height: 50px; padding: 0 3px; gap: 4px; border: 0; border-right: 1px solid rgba(255,255,255,.22); }
  #sizheng-intro .sizheng-hero-capabilities > div:last-child { border-right: 0; }
  #sizheng-intro .sizheng-capability-icon { flex: 0 0 18px; width: 18px; height: 18px; }
  #sizheng-intro .sizheng-hero-capabilities span { color: rgba(255,255,255,.9); font-size: 9px; line-height: 1.2; text-align: center; white-space: normal; }

  body[data-page="sizheng"] .section-heading h2,
  body[data-page="sizheng"] .sizheng-needs-heading h2,
  body[data-page="sizheng"] .sizheng-architecture-heading h2,
  body[data-page="sizheng"] .sizheng-systems-heading h2,
  body[data-page="sizheng"] .sizheng-zones-heading h2,
  body[data-page="sizheng"] .sizheng-users-heading h2,
  body[data-page="sizheng"] .sizheng-resources-heading h2,
  body[data-page="sizheng"] .sizheng-delivery-heading h2,
  body[data-page="sizheng"] .sizheng-cases-heading h2 {
    margin: 10px 0 8px;
    font-size: 19px;
    line-height: 1.38;
  }

  body[data-page="sizheng"] .sizheng-architecture-heading > span,
  body[data-page="sizheng"] .sizheng-systems-heading > span,
  body[data-page="sizheng"] .sizheng-zones-heading > span,
  body[data-page="sizheng"] .sizheng-users-heading > span,
  body[data-page="sizheng"] .sizheng-outcomes-heading > span,
  body[data-page="sizheng"] .sizheng-resources-heading > span,
  body[data-page="sizheng"] .sizheng-delivery-heading > span,
  body[data-page="sizheng"] .sizheng-cases-heading > span {
    gap: 8px;
    font-size: 11px;
  }

  body[data-page="sizheng"] .sizheng-architecture-heading p,
  body[data-page="sizheng"] .sizheng-systems-heading p,
  body[data-page="sizheng"] .sizheng-zones-heading p,
  body[data-page="sizheng"] .sizheng-users-heading p,
  body[data-page="sizheng"] .sizheng-resources-heading p,
  body[data-page="sizheng"] .sizheng-delivery-heading p,
  body[data-page="sizheng"] .sizheng-cases-heading p {
    font-size: 12px;
    line-height: 1.65;
  }

  /* 四类难题：两列卡片和图标同步收缩。 */
  #needs .sizheng-needs-heading { margin-bottom: 18px; }
  #needs .sizheng-needs-heading h2 { font-size: 19px; }
  #needs .sizheng-needs-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  #needs .sizheng-needs-grid article { align-items: flex-start; gap: 10px; min-height: 0; padding: 13px 10px; border-radius: 7px; }
  #needs .sizheng-needs-icon { width: 34px; height: 34px; }
  #needs .sizheng-needs-icon::after { -webkit-mask-size: 18px; mask-size: 18px; }
  #needs .sizheng-needs-grid h3 { margin-bottom: 5px; font-size: 13px; line-height: 1.35; }
  #needs .sizheng-needs-grid p { font-size: 10px; line-height: 1.55; }

  /* 架构图片保持完整，信息区在图片下方。 */
  .sizheng-architecture-heading { margin-bottom: 18px; }
  .sizheng-architecture-card { display: flex; flex-direction: column; min-height: 0; border-radius: 8px; }
  body[data-page="sizheng"] .sizheng-architecture-image,
  body[data-page="sizheng"] .sizheng-architecture-image.cms-media-applied {
    min-height: 0;
    aspect-ratio: var(--mobile-media-ratio, 16 / 10);
    background-position: center;
    background-color: #f7f7f7;
    background-size: 100% 100% !important;
  }
  .sizheng-architecture-copy { padding: 18px 16px; }
  .sizheng-architecture-kicker { gap: 7px; font-size: 11px; }
  .sizheng-architecture-kicker::after { width: 42px; }
  .sizheng-architecture-icon { width: 20px; height: 20px; }
  body[data-page="sizheng"] .sizheng-architecture-copy h3 { margin: 12px 0 8px; padding-bottom: 9px; font-size: 16px; }
  .sizheng-architecture-copy dl > div { grid-template-columns: 28px 68px minmax(0, 1fr); min-height: 49px; }
  .sizheng-architecture-copy dt,
  .sizheng-architecture-copy dd { font-size: 11px; line-height: 1.45; white-space: normal; }

  /* 五大系统横滑展示，卡片不使用进入时的上浮动画。 */
  .sizheng-systems-heading,
  .sizheng-zones-heading,
  .sizheng-users-heading,
  .sizheng-resources-heading,
  .sizheng-delivery-heading { margin-bottom: 18px; }
  .sizheng-systems-grid { display: flex; gap: 12px; overflow-x: auto; overflow-y: hidden; margin-right: -18px; padding: 0 18px 5px 0; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .sizheng-systems-grid::-webkit-scrollbar, .sizheng-zones-grid::-webkit-scrollbar, .sizheng-case-grid::-webkit-scrollbar { display: none; }
  body[data-page="sizheng"] .sizheng-systems-grid .sizheng-system-card:not(.sizheng-system-card--summary),
  body[data-page="sizheng"] .sizheng-systems-grid .sizheng-system-card--lead { flex: 0 0 260px; width: 260px; min-height: 0; scroll-snap-align: start; transform: none !important; transition: none; }
  .sizheng-systems-grid .sizheng-system-image,
  .sizheng-systems-grid .sizheng-system-card--lead .sizheng-system-image {
    flex: 0 0 auto;
    aspect-ratio: var(--mobile-media-ratio, 16 / 9);
    background-position: center;
    background-color: #f7f7f7;
    background-size: 100% 100% !important;
  }
  body[data-page="sizheng"] .sizheng-systems-grid .sizheng-system-footer,
  body[data-page="sizheng"] .sizheng-systems-grid .sizheng-system-card--lead .sizheng-system-footer { flex: 0 0 auto; gap: 8px; min-height: 0; padding: 9px 10px; }
  .sizheng-systems-grid .sizheng-system-footer > b,
  .sizheng-systems-grid .sizheng-system-card--lead .sizheng-system-footer > b { font-size: 19px; }
  .sizheng-systems-grid .sizheng-system-footer h3,
  .sizheng-systems-grid .sizheng-system-card--lead .sizheng-system-footer h3 { font-size: 12px; line-height: 1.35; }
  .sizheng-systems-grid .sizheng-system-card--summary { display: none; }
  .sizheng-system-summary-content { min-height: 0; padding: 14px 12px; }
  .sizheng-system-summary-content h3 { margin-bottom: 7px; font-size: 14px; }
  .sizheng-system-summary-content p { font-size: 10px; line-height: 1.55; }

  /* 功能区横滑，保留原有图上文下的卡片构成。 */
  .sizheng-zones-grid { display: flex; gap: 12px; overflow-x: auto; overflow-y: hidden; margin-right: -18px; padding: 0 18px 5px 0; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .sizheng-zone--secondary { flex: 0 0 260px; width: 260px; min-height: 0; border-radius: 8px; scroll-snap-align: start; transform: none !important; transition: none; }
  .sizheng-zone--secondary .sizheng-zone-image,
  .sizheng-zone--secondary .sizheng-zone-image.cms-media-applied {
    aspect-ratio: 16 / 9;
    background-position: center;
    background-size: cover !important;
  }
  .sizheng-zone-footer { gap: 11px; min-height: 0; padding: 12px 14px; }
  .sizheng-zone-footer > b { font-size: 22px; }
  .sizheng-zone-footer h3 { margin-bottom: 2px; font-size: 15px; }
  .sizheng-zone-footer p { font-size: 10px; }

  /* 使用对象与成效：内容不裁切，卡片由横向收为连续纵向信息。 */
  body[data-page="sizheng"] #users { padding: 36px 0; }
  .sizheng-users-grid { grid-template-columns: 1fr; border-radius: 8px; }
  .sizheng-user-card { grid-template-columns: 34px minmax(0, 1fr); gap: 12px; min-height: 0; padding: 15px 14px; }
  .sizheng-user-card > i { width: 30px; height: 30px; }
  .sizheng-user-card h3 { padding-bottom: 6px; font-size: 15px; }
  .sizheng-user-card ul { gap: 3px; margin-top: 7px; font-size: 11px; line-height: 1.45; }
  .sizheng-user-card li { padding-left: 10px; }
  .sizheng-user-card li::before { width: 3px; height: 3px; }
  body[data-page="sizheng"] .sizheng-outcomes-panel { display: block; margin-top: 16px; padding: 18px 15px; border-radius: 8px; }
  body[data-page="sizheng"] .sizheng-outcomes-heading h2 { margin: 8px 0 14px; font-size: 17px; line-height: 1.4; }
  body[data-page="sizheng"] .sizheng-outcomes-grid { grid-template-columns: 1fr; gap: 0; }
  body[data-page="sizheng"] .sizheng-outcome,
  body[data-page="sizheng"] .sizheng-outcome:first-child,
  body[data-page="sizheng"] .sizheng-outcome:last-child { display: block; min-height: 0; padding: 10px 0; border-right: 0; }
  body[data-page="sizheng"] .sizheng-outcome::before { margin-bottom: 4px; font-size: 10px; }
  body[data-page="sizheng"] .sizheng-outcome h3 { margin-bottom: 3px; font-size: 14px; line-height: 1.35; }
  body[data-page="sizheng"] .sizheng-outcome p { font-size: 10px; line-height: 1.5; }

  /* 内容、平台与安全保留图标与完整文字。 */
  .sizheng-resources-grid { grid-template-columns: 1fr; border-radius: 8px; }
  .sizheng-resources-grid article { grid-template-columns: 38px minmax(0, 1fr); gap: 12px; min-height: 0; padding: 14px; border-right: 0; }
  .sizheng-resource-icon { width: 34px; height: 34px; }
  .sizheng-resource-icon::after { width: 17px; height: 17px; }
  .sizheng-resources-grid h3 { margin-bottom: 6px; padding-bottom: 6px; font-size: 14px; }
  .sizheng-resources-grid p { font-size: 11px; line-height: 1.55; }

  /* 交付过程按阅读顺序排布，现场图片完整可见。 */
  body[data-page="sizheng"] #delivery { padding-bottom: 36px; }
  body[data-page="sizheng"] #delivery > .container { overflow: visible; padding: 0; border: 0; border-radius: 0; }
  .sizheng-delivery-main { grid-template-columns: 1fr; gap: 18px; }
  .sizheng-delivery-steps { gap: 10px; min-height: 0; padding: 0; }
  .sizheng-delivery-steps article { grid-template-columns: 32px minmax(0, 1fr); gap: 10px; }
  .sizheng-delivery-steps b { width: 28px; height: 28px; font-size: 11px; }
  .sizheng-delivery-steps article:not(:last-child) b::after { top: 34px; left: 13px; height: 19px; }
  .sizheng-delivery-steps h3 { margin-bottom: 2px; font-size: 14px; }
  .sizheng-delivery-steps p { font-size: 11px; line-height: 1.45; }
  body[data-page="sizheng"] .sizheng-delivery-image,
  body[data-page="sizheng"] .sizheng-delivery-image.cms-media-applied { min-height: 0; aspect-ratio: var(--mobile-media-ratio, 16 / 10); border-radius: 8px; background-color: #f7f7f7; background-size: 100% 100% !important; }
  body[data-page="sizheng"] .sizheng-delivery-services { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; margin: 18px 0 0; padding: 10px 4px; border-radius: 8px; }
  body[data-page="sizheng"] .sizheng-delivery-services span { display: grid; grid-template-columns: 1fr; place-items: center; gap: 5px; min-height: 59px; padding: 4px 2px; font-size: 9px; white-space: nowrap; }
  body[data-page="sizheng"] .sizheng-delivery-services span { border-bottom: 0 !important; }
  body[data-page="sizheng"] .sizheng-delivery-services span:not(:last-child) { border-right: 1px solid rgba(190, 140, 78, .28); }
  body[data-page="sizheng"] .sizheng-delivery-services span::before { width: 22px; height: 22px; }

  /* 学校案例横滑，图片区域维持原图比例。 */
  body[data-page="sizheng"] #cases { padding: 0 0 36px; }
  body[data-page="sizheng"] #cases > .container { padding: 24px 18px; border-radius: 8px; }
  .sizheng-cases-top { display: block; }
  body[data-page="sizheng"] .sizheng-case-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); width: 100%; gap: 0; margin-top: 14px; }
  body[data-page="sizheng"] .sizheng-case-stats > span { display: flex; flex-direction: column; align-items: center; min-width: 0; padding: 8px 4px; border-right: 1px solid rgba(190, 140, 78, .35); border-bottom: 0; text-align: center; font-size: 10px; }
  body[data-page="sizheng"] .sizheng-case-stats > span:last-child { border-right: 0; }
  body[data-page="sizheng"] .sizheng-case-stats > span::before { width: 28px; height: 28px; margin-bottom: 4px; }
  body[data-page="sizheng"] .sizheng-case-stats b { font-size: 16px; }
  .sizheng-case-grid { display: flex; gap: 12px; overflow-x: auto; overflow-y: hidden; margin-right: -18px; padding: 0 18px 5px 0; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .sizheng-case-grid .matrix-card { flex: 0 0 260px; width: 260px; scroll-snap-align: start; transform: none !important; transition: none; }
  .sizheng-case-grid .matrix-card .image-placeholder,
  .sizheng-case-grid .matrix-card .image-placeholder.cms-media-applied { min-height: 0; aspect-ratio: 16 / 9; background-size: contain !important; }
  .sizheng-case-grid .matrix-card-body { padding: 12px 14px; }
  .sizheng-case-grid .matrix-card-body small { font-size: 10px; }
  .sizheng-case-grid .matrix-card-body h3 { margin: 4px 0; font-size: 15px; }
  .sizheng-case-grid .matrix-card-body p { font-size: 11px; }

  /* 底部行动区保持与正文同宽，按钮为内容宽度。 */
  .sizheng-final-cta { padding: 0 0 36px; }
  .sizheng-final-cta .container { align-items: center; justify-content: flex-start; flex-direction: row; flex-wrap: wrap; gap: 12px; min-height: 0; padding: 20px 18px; border-radius: 8px; }
  .sizheng-final-cta .container > i { width: 36px; height: 36px; }
  .sizheng-final-cta .container > div:not(.sizheng-final-cta-actions) { flex: 1 1 0; min-width: 0; }
  .sizheng-final-cta h2 { margin-bottom: 5px; font-size: 14px; line-height: 1.35; white-space: normal; }
  .sizheng-final-cta p { font-size: 11px; line-height: 1.5; }
  .sizheng-final-cta-actions { flex: 0 0 100%; width: 100%; flex-direction: row; flex-wrap: wrap; gap: 9px; margin-left: 0; }
  .sizheng-final-cta .button { justify-content: flex-start; width: auto; min-height: 31px; padding: 0 10px; font-size: 11px; }
  .sizheng-final-cta .button span { font-size: 14px; }

  .sizheng-systems-grid + .mobile-scroll-dots,
  .sizheng-zones-grid + .mobile-scroll-dots,
  .sizheng-case-grid + .mobile-scroll-dots { display: flex; }
  .mobile-scroll-dots { align-items: center; justify-content: center; gap: 5px; margin-top: 10px; }
  .mobile-scroll-dots i { display: block; width: 5px; height: 5px; border-radius: 50%; background: #d8d8d8; transition: width .2s ease, background-color .2s ease; }
  .mobile-scroll-dots i.is-active { width: 18px; border-radius: 5px; background: #ae752e; }
}

@media (max-width: 390px) {
  #needs .sizheng-needs-grid { grid-template-columns: 1fr; }
  .sizheng-outcomes-grid { grid-template-columns: 1fr; }
  .sizheng-outcome,
  .sizheng-outcome:first-child,
  .sizheng-outcome:last-child { padding: 9px 0; border-right: 0; border-bottom: 1px solid rgba(218, 169, 97, .4); }
  .sizheng-outcome:last-child { border-bottom: 0; }
}