@media (min-width: 901px) {
  /* Desktop-only case board inserted between research and publications. */
  .case-board-section {
    position: relative;
    overflow: hidden;
    scroll-margin-top: 96px;
    padding: 104px 0 96px;
    background:
      radial-gradient(circle at 10% 0%, rgba(127, 157, 138, 0.18), rgba(127, 157, 138, 0) 34%),
      radial-gradient(circle at 88% 18%, rgba(143, 168, 189, 0.16), rgba(143, 168, 189, 0) 32%),
      linear-gradient(180deg, #070b14 0%, #0b111e 100%);
    color: #f7f1e8;
  }

  .case-board-section::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 1px;
    background: linear-gradient(90deg, rgba(215, 183, 109, 0), rgba(215, 183, 109, 0.58), rgba(215, 183, 109, 0));
  }

  .case-board-shell {
    position: relative;
    z-index: 1;
  }

  .case-board-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
    align-items: start;
    margin-bottom: 34px;
  }

  .case-board-eyebrow {
    margin: 0 0 14px;
    color: #d7b76d;
    font-family: "Manrope", "Noto Sans SC", sans-serif;
    font-size: 0.86rem;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
  }

  .case-board-title {
    margin: 0;
    max-width: 980px;
    color: #fffaf0;
    font-family: "Manrope", "Noto Sans SC", sans-serif;
    font-size: 3.9rem;
    font-weight: 800;
    line-height: 1.04;
    letter-spacing: 0;
  }

  html[data-language="zh"] .case-board-title {
    font-family: "Noto Serif SC", "STKaiti", "Kaiti SC", serif;
    font-weight: 700;
  }

  .case-board-title span {
    color: #d7b76d;
  }

  .case-board-copy {
    margin: 18px 0 0;
    max-width: 720px;
    color: rgba(247, 241, 232, 0.68);
    font-size: 1.02rem;
    line-height: 1.78;
  }

  .case-board-state {
    min-height: 190px;
    display: grid;
    place-items: center;
    border: 1px dashed rgba(247, 241, 232, 0.18);
    border-radius: 8px;
    color: rgba(247, 241, 232, 0.66);
    font-size: 1rem;
  }

  .case-board-state[hidden],
  .case-board-grid[hidden] {
    display: none !important;
  }

  .case-board-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .case-board-card {
    min-height: 560px;
    display: grid;
    grid-template-rows: 300px 1fr;
    overflow: hidden;
    border: 1px solid rgba(247, 241, 232, 0.1);
    border-radius: 8px;
    background:
      linear-gradient(180deg, rgba(16, 23, 38, 0.96), rgba(9, 13, 23, 0.98)),
      #0b111e;
    color: inherit;
    text-decoration: none;
    box-shadow: 0 24px 62px rgba(0, 0, 0, 0.28);
    transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
  }

  .case-board-card:hover,
  .case-board-card:focus-visible {
    transform: translateY(-6px);
    border-color: rgba(215, 183, 109, 0.44);
    box-shadow: 0 34px 76px rgba(0, 0, 0, 0.34);
    outline: 0;
  }

  .case-card-media {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(2, minmax(0, 1fr));
    gap: 4px;
    overflow: hidden;
    background: #050914;
  }

  .case-card-media.is-single {
    display: block;
  }

  .case-card-media img,
  .case-card-media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: #080d18;
  }

  .case-card-media.is-single img,
  .case-card-media.is-single video {
    display: block;
  }

  .case-card-placeholder {
    height: 100%;
    display: grid;
    place-items: center;
    background:
      radial-gradient(circle at 50% 30%, rgba(215, 183, 109, 0.18), rgba(215, 183, 109, 0) 34%),
      #0b111e;
    color: rgba(247, 241, 232, 0.56);
    font-size: 0.92rem;
  }

  .case-card-copy {
    display: grid;
    align-content: start;
    gap: 16px;
    padding: 28px;
  }

  .case-card-index {
    color: #d7b76d;
    font-family: "Manrope", "Noto Sans SC", sans-serif;
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: 0;
  }

  .case-card-title {
    margin: 0;
    color: #fffaf0;
    font-family: "Manrope", "Noto Sans SC", sans-serif;
    font-size: 1.45rem;
    font-weight: 800;
    line-height: 1.28;
    letter-spacing: 0;
  }

  .case-card-summary {
    margin: 0;
    color: rgba(247, 241, 232, 0.66);
    font-size: 0.98rem;
    line-height: 1.78;
  }

  .case-card-foot {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: auto;
  }

  .case-card-pill {
    min-height: 30px;
    display: inline-flex;
    align-items: center;
    padding: 0 11px;
    border: 1px solid rgba(215, 183, 109, 0.28);
    border-radius: 999px;
    color: #d7b76d;
    font-size: 0.74rem;
    font-weight: 800;
  }

  .site-message-section {
    position: relative;
    padding: 96px 0 104px;
    overflow: hidden;
    background:
      linear-gradient(180deg, #f6efe0 0%, #e9eef0 100%);
    color: #151713;
  }

  .site-message-section::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 1px;
    background: linear-gradient(90deg, rgba(21, 23, 19, 0), rgba(21, 23, 19, 0.2), rgba(21, 23, 19, 0));
  }

  .site-message-shell {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 28px;
  }

  .site-message-head {
    display: grid;
    gap: 14px;
    max-width: 900px;
  }

  .site-message-eyebrow,
  .site-message-panel-head span {
    color: #8c6a2f;
    font-family: "Manrope", "Noto Sans SC", sans-serif;
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
  }

  .site-message-eyebrow,
  .site-message-head h2,
  .site-message-head p,
  .site-message-panel-head strong {
    margin: 0;
  }

  .site-message-head h2 {
    font-family: "Manrope", "Noto Sans SC", sans-serif;
    font-size: clamp(2.5rem, 4vw, 4.6rem);
    font-weight: 800;
    line-height: 1.02;
    letter-spacing: 0;
  }

  html[data-language="zh"] .site-message-head h2 {
    font-family: "Noto Serif SC", "STKaiti", "Kaiti SC", serif;
    font-weight: 700;
  }

  .site-message-head h2 span {
    color: #8c6a2f;
  }

  .site-message-head p {
    max-width: 720px;
    color: rgba(21, 23, 19, 0.68);
    font-size: 1.02rem;
    line-height: 1.82;
  }

  .site-message-layout {
    display: grid;
    grid-template-columns: minmax(320px, 0.82fr) minmax(0, 1.18fr);
    gap: 18px;
    align-items: start;
  }

  .site-message-form,
  .site-message-panel {
    border: 1px solid rgba(255, 255, 255, 0.72);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.68);
    box-shadow: 0 24px 70px rgba(70, 84, 78, 0.12);
    backdrop-filter: blur(22px) saturate(1.08);
    -webkit-backdrop-filter: blur(22px) saturate(1.08);
  }

  .site-message-form {
    display: grid;
    gap: 14px;
    padding: 18px;
  }

  .site-message-form label {
    display: grid;
    gap: 8px;
  }

  .site-message-form span {
    color: rgba(21, 23, 19, 0.62);
    font-size: 0.86rem;
    font-weight: 800;
  }

  .site-message-form input,
  .site-message-form textarea {
    width: 100%;
    border: 1px solid rgba(21, 23, 19, 0.12);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.78);
    color: #151713;
    padding: 12px 13px;
    font: inherit;
    outline: none;
    resize: vertical;
  }

  .site-message-form input:focus,
  .site-message-form textarea:focus {
    border-color: rgba(140, 106, 47, 0.5);
    background: rgba(255, 255, 255, 0.96);
  }

  .site-message-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
  }

  .site-message-actions button {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 18px;
    border: 0;
    border-radius: 8px;
    background: #151713;
    color: #fffaf0;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
  }

  .site-message-actions small {
    min-height: 22px;
    color: #8c6a2f;
    font-weight: 800;
  }

  .site-message-panel {
    display: grid;
    gap: 14px;
    padding: 18px;
  }

  .site-message-panel-head {
    display: grid;
    gap: 6px;
  }

  .site-message-panel-head strong {
    font-size: 1.38rem;
  }

  .site-message-list {
    display: grid;
    gap: 10px;
  }

  .site-message-card {
    display: grid;
    gap: 8px;
    padding: 14px;
    border: 1px solid rgba(21, 23, 19, 0.1);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.54);
  }

  .site-message-card strong,
  .site-message-card p {
    margin: 0;
  }

  .site-message-card time {
    color: rgba(21, 23, 19, 0.5);
    font-size: 0.78rem;
  }

  .site-message-card p {
    color: rgba(21, 23, 19, 0.72);
    line-height: 1.72;
  }
}

@media (max-width: 900px) {
  .case-board-section {
    display: none !important;
  }

  .mobile-site .site-message-section {
    margin-top: 24px;
    padding-bottom: 18px;
  }

  .mobile-site .site-message-shell {
    display: grid;
    gap: 14px;
  }

  .mobile-site .site-message-form {
    display: grid;
    gap: 10px;
    padding: 12px;
    border: 1px solid rgba(243, 238, 226, 0.14);
    border-radius: 8px;
    background: rgba(13, 15, 14, 0.78);
  }

  .mobile-site .site-message-form label {
    display: grid;
    gap: 7px;
  }

  .mobile-site .site-message-form span {
    color: rgba(243, 238, 226, 0.68);
    font-size: 0.78rem;
    font-weight: 800;
  }

  .mobile-site .site-message-form input,
  .mobile-site .site-message-form textarea {
    width: 100%;
    border: 1px solid rgba(243, 238, 226, 0.14);
    border-radius: 8px;
    background: rgba(243, 238, 226, 0.92);
    color: #151713;
    padding: 11px 12px;
    font: inherit;
    outline: none;
    resize: vertical;
  }

  .mobile-site .site-message-actions {
    display: grid;
    gap: 8px;
  }

  .mobile-site .site-message-actions button {
    min-height: 42px;
    border: 0;
    border-radius: 8px;
    background: #d7b76d;
    color: #151713;
    font-weight: 800;
  }

  .mobile-site .site-message-actions small {
    min-height: 20px;
    color: #d7b76d;
    font-size: 0.78rem;
    font-weight: 800;
  }

  .mobile-site .site-message-list {
    display: grid;
    gap: 10px;
  }

  .mobile-site .site-message-card {
    display: grid;
    gap: 7px;
    padding: 12px;
    border: 1px solid rgba(243, 238, 226, 0.14);
    border-radius: 8px;
    background: rgba(13, 15, 14, 0.78);
  }

  .mobile-site .site-message-card strong,
  .mobile-site .site-message-card p {
    margin: 0;
  }

  .mobile-site .site-message-card time {
    color: rgba(243, 238, 226, 0.5);
    font-size: 0.72rem;
  }

  .mobile-site .site-message-card p {
    color: rgba(243, 238, 226, 0.76);
    font-size: 0.9rem;
    line-height: 1.66;
  }
}

@media (min-width: 901px) and (max-width: 1180px) {
  .case-board-head {
    grid-template-columns: 1fr;
  }

  .case-board-title {
    font-size: 3.1rem;
  }

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

  .case-board-card {
    min-height: 0;
    grid-template-columns: 44% 1fr;
    grid-template-rows: none;
  }
}