:root {
  --case-navy: #062f49;
  --case-blue: #078bc5;
  --case-sky: #dff3fa;
  --case-mint: #dff3ec;
  --case-cream: #fbf8f2;
  --case-gold: #c99b52;
  --case-text: #16384c;
  --case-muted: #647b89;
  --case-line: #d8e6ec;
  --case-shadow: 0 18px 50px rgba(6, 47, 73, .09);
}

.case-library,
.case-library * {
  box-sizing: border-box;
}

.case-library {
  overflow: hidden;
  background: #fff;
  color: var(--case-text);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}

.case-library button,
.case-library input {
  font: inherit;
}

.case-library [hidden] {
  display: none !important;
}

.case-library .w1200 {
  width: min(1200px, calc(100% - 48px));
  margin-inline: auto;
}

.case-library-hero {
  position: relative;
  padding: 34px 0 82px;
  background:
    radial-gradient(circle at 82% 18%, rgba(75, 181, 214, .23), transparent 28%),
    linear-gradient(135deg, #eff9fc 0%, #f8fbfc 52%, #f8f3e9 100%);
}

.case-library-hero::after {
  position: absolute;
  right: -110px;
  bottom: -165px;
  width: 360px;
  height: 360px;
  border: 1px solid rgba(7, 139, 197, .14);
  border-radius: 50%;
  content: "";
}

.case-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 52px;
  color: #6f8795;
  font-size: 13px;
}

.case-breadcrumb a {
  color: inherit;
}

.case-breadcrumb a:hover {
  color: var(--case-blue);
}

.case-library-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(330px, .65fr);
  gap: 72px;
  align-items: center;
}

.case-eyebrow {
  margin: 0 0 13px;
  color: var(--case-blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .18em;
}

.case-library-hero h1 {
  max-width: 700px;
  margin: 0;
  color: var(--case-navy);
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  font-size: clamp(38px, 5vw, 66px);
  font-weight: 600;
  letter-spacing: -.04em;
  line-height: 1.14;
}

.case-library-hero__lead {
  max-width: 720px;
  margin: 26px 0 0;
  color: #49697a;
  font-size: 17px;
  line-height: 1.9;
}

.case-library-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.case-library-hero__meta span {
  padding: 9px 14px;
  border: 1px solid rgba(6, 47, 73, .10);
  border-radius: 999px;
  background: rgba(255,255,255,.74);
  color: #416476;
  font-size: 13px;
}

.case-library-hero__meta strong {
  color: var(--case-navy);
}

.case-library-guide {
  padding: 34px;
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 28px;
  background: rgba(255,255,255,.72);
  box-shadow: var(--case-shadow);
  backdrop-filter: blur(12px);
}

.case-library-guide__number {
  color: var(--case-gold);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .14em;
}

.case-library-guide p {
  margin: 5px 0 0;
  color: #4f6b79;
  font-size: 15px;
  line-height: 1.7;
}

.case-library-guide strong {
  color: var(--case-navy);
}

.case-library-guide__line {
  display: block;
  width: 1px;
  height: 22px;
  margin: 10px 0 10px 5px;
  background: var(--case-line);
}

.case-category-section {
  padding: 72px 0 78px;
  background: #fff;
}

.case-section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 36px;
  margin-bottom: 30px;
}

.case-section-heading h2,
.case-search-panel h2 {
  margin: 0;
  color: var(--case-navy);
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 600;
}

.case-section-heading > p {
  max-width: 430px;
  margin: 0;
  color: var(--case-muted);
  font-size: 14px;
  line-height: 1.7;
  text-align: right;
}

.case-category-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 13px;
}

.case-category-card {
  position: relative;
  display: flex;
  min-height: 150px;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px;
  overflow: hidden;
  border: 1px solid var(--case-line);
  border-radius: 21px;
  background: #f9fcfd;
  color: var(--case-navy);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}

.case-category-card::after {
  position: absolute;
  top: -35px;
  right: -35px;
  width: 105px;
  height: 105px;
  border: 1px solid rgba(7, 139, 197, .12);
  border-radius: 50%;
  content: "";
}

.case-category-card:hover {
  border-color: rgba(7, 139, 197, .35);
  box-shadow: 0 14px 34px rgba(6, 47, 73, .08);
  transform: translateY(-4px);
}

.case-category-card.is-active {
  border-color: var(--case-navy);
  background: var(--case-navy);
  color: #fff;
}

.case-category-card__mark {
  position: absolute;
  top: 18px;
  left: 20px;
  color: var(--case-blue);
  font-family: Georgia, serif;
  font-size: 24px;
  font-weight: 700;
  opacity: .9;
}

.case-category-card.is-active .case-category-card__mark {
  color: #7dd4f0;
}

.case-category-card strong {
  font-size: 18px;
}

.case-category-card small {
  margin-top: 7px;
  color: var(--case-muted);
  font-size: 12px;
}

.case-category-card.is-active small {
  color: rgba(255,255,255,.7);
}

.case-results-section {
  padding: 78px 0 88px;
  background: var(--case-cream);
}

.case-search-panel {
  margin-bottom: 36px;
  padding: 30px;
  border: 1px solid rgba(6, 47, 73, .08);
  border-radius: 26px;
  background: #fff;
  box-shadow: 0 12px 36px rgba(6, 47, 73, .06);
}

.case-search-panel__heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.case-saved-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 15px;
  border: 1px solid var(--case-line);
  border-radius: 999px;
  background: #fff;
  color: var(--case-text);
  cursor: pointer;
}

.case-saved-toggle span {
  color: #d47776;
  font-size: 20px;
}

.case-saved-toggle b {
  display: grid;
  min-width: 22px;
  height: 22px;
  place-items: center;
  border-radius: 50%;
  background: #eef5f7;
  font-size: 11px;
}

.case-saved-toggle[aria-pressed="true"] {
  border-color: #e3b4b1;
  background: #fff7f6;
}

.case-search {
  margin-top: 26px;
}

.case-search > label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.case-search__field {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  min-height: 58px;
  align-items: center;
  padding-left: 18px;
  border: 1px solid #cfdfe6;
  border-radius: 16px;
  background: #fbfdfe;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.case-search__field:focus-within {
  border-color: var(--case-blue);
  box-shadow: 0 0 0 4px rgba(7, 139, 197, .10);
}

.case-search__field > span {
  color: var(--case-blue);
  font-size: 25px;
}

.case-search__field input {
  width: 100%;
  min-width: 0;
  height: 56px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--case-navy);
  font-size: 15px;
}

.case-search__field button {
  height: 46px;
  margin-right: 6px;
  padding: 0 22px;
  border: 0;
  border-radius: 12px;
  background: var(--case-navy);
  color: #fff;
  cursor: pointer;
}

.case-topic-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 18px;
}

.case-topic-filter button {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--case-line);
  border-radius: 999px;
  background: #fff;
  color: #557180;
  cursor: pointer;
}

.case-topic-filter button:hover,
.case-topic-filter button.is-active {
  border-color: var(--case-blue);
  background: #edf8fc;
  color: #0578aa;
}

.case-search-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 30px;
  margin-top: 17px;
  color: var(--case-muted);
  font-size: 13px;
}

.case-search-status button,
.case-empty button {
  padding: 0;
  border: 0;
  border-bottom: 1px solid currentColor;
  background: transparent;
  color: var(--case-blue);
  cursor: pointer;
}

.case-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.case-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(6, 47, 73, .09);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 10px 32px rgba(6, 47, 73, .06);
  transition: transform .22s ease, box-shadow .22s ease;
}

.case-card:hover {
  box-shadow: 0 18px 42px rgba(6, 47, 73, .12);
  transform: translateY(-5px);
}

.case-card__media {
  position: relative;
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #e8f1f4;
}

.case-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
}

.case-card:hover .case-card__media img {
  transform: scale(1.035);
}

.case-card__category {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 6px 10px;
  border: 1px solid rgba(255,255,255,.45);
  border-radius: 999px;
  background: rgba(6, 47, 73, .76);
  color: #fff;
  font-size: 11px;
  backdrop-filter: blur(8px);
}

.case-card__body {
  display: flex;
  min-height: 256px;
  flex: 1;
  flex-direction: column;
  padding: 22px;
}

.case-card__tags {
  display: flex;
  min-height: 24px;
  flex-wrap: wrap;
  gap: 6px;
}

.case-card__tags span {
  padding: 4px 8px;
  border-radius: 999px;
  background: #eef7f9;
  color: #4e7181;
  font-size: 10px;
}

.case-card h3 {
  margin: 13px 0 0;
  font-size: 19px;
  line-height: 1.52;
}

.case-card h3 a {
  display: -webkit-box;
  overflow: hidden;
  color: var(--case-navy);
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.case-card__body > p {
  display: -webkit-box;
  margin: 12px 0 20px;
  overflow: hidden;
  color: var(--case-muted);
  font-size: 13px;
  line-height: 1.78;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.case-card__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 15px;
  border-top: 1px solid #edf2f4;
}

.case-card__read {
  color: var(--case-blue);
  font-size: 13px;
  font-weight: 700;
}

.case-card__save {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--case-line);
  border-radius: 50%;
  background: #fff;
  color: #d47776;
  cursor: pointer;
}

.case-card__save span {
  font-size: 22px;
  line-height: 1;
}

.case-card__save[aria-pressed="true"] {
  border-color: #e7bbb8;
  background: #fff3f2;
}

.case-empty {
  margin-top: 24px;
  padding: 54px 24px;
  border: 1px dashed #c8d9e0;
  border-radius: 22px;
  background: rgba(255,255,255,.65);
  text-align: center;
}

.case-empty strong {
  color: var(--case-navy);
  font-size: 20px;
}

.case-empty p {
  margin: 10px 0 18px;
  color: var(--case-muted);
}

.case-server-pagination,
.case-client-pagination {
  display: flex;
  justify-content: center;
  margin-top: 38px;
}

.case-server-pagination .pagination,
.case-client-pagination {
  display: flex;
  width: auto;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.case-server-pagination .pagination li {
  display: block;
  width: auto;
  float: none;
  margin: 0;
  padding: 0;
  background: transparent;
}

.case-server-pagination .pagination a,
.case-client-pagination button {
  display: grid;
  min-width: 40px;
  height: 40px;
  place-items: center;
  padding: 0 12px;
  border: 1px solid var(--case-line);
  border-radius: 11px;
  background: #fff;
  color: var(--case-text);
  cursor: pointer;
}

.case-server-pagination .pagination li:hover {
  background: transparent;
}

.case-server-pagination .pagination li:hover a {
  color: var(--case-text);
}

.case-server-pagination .pagination .active:hover a {
  color: #fff;
}

.case-server-pagination .pagination .active a,
.case-client-pagination button.is-active {
  border-color: var(--case-navy);
  background: var(--case-navy);
  color: #fff;
}

.case-medical-note {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 22px;
  align-items: center;
  margin-top: 50px;
  padding: 25px 28px;
  border-left: 4px solid var(--case-gold);
  border-radius: 0 18px 18px 0;
  background: #fff;
}

.case-medical-note > span {
  color: var(--case-gold);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .12em;
}

.case-medical-note p {
  margin: 0;
  color: var(--case-muted);
  font-size: 13px;
  line-height: 1.7;
}

.case-medical-note a {
  color: var(--case-navy);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

@media (max-width: 1080px) {
  .case-library-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(300px, .65fr);
    gap: 38px;
  }

  .case-category-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .case-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .case-library .w1200 {
    width: min(100% - 32px, 680px);
  }

  .case-library-hero {
    padding: 24px 0 58px;
  }

  .case-breadcrumb {
    margin-bottom: 34px;
  }

  .case-library-hero__grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .case-library-hero h1 {
    font-size: 38px;
  }

  .case-library-hero__lead {
    margin-top: 19px;
    font-size: 15px;
  }

  .case-library-guide {
    padding: 24px;
    border-radius: 20px;
  }

  .case-category-section,
  .case-results-section {
    padding: 56px 0;
  }

  .case-section-heading,
  .case-search-panel__heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .case-section-heading > p {
    text-align: left;
  }

  .case-category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case-category-card:first-child {
    grid-column: 1 / -1;
  }

  .case-category-card {
    min-height: 126px;
    padding: 18px;
  }

  .case-search-panel {
    padding: 22px 18px;
    border-radius: 20px;
  }

  .case-search__field {
    grid-template-columns: 30px minmax(0, 1fr);
    padding-right: 6px;
  }

  .case-search__field button {
    grid-column: 1 / -1;
    width: calc(100% + 12px);
    margin: 0 0 6px -12px;
  }

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

  .case-card__body {
    min-height: 0;
  }

  .case-medical-note {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

@media (max-width: 420px) {
  .case-library .w1200 {
    width: calc(100% - 24px);
  }

  .case-library-hero__meta {
    gap: 7px;
  }

  .case-library-hero__meta span {
    padding: 7px 10px;
    font-size: 11px;
  }

  .case-category-card {
    min-height: 116px;
  }

  .case-category-card strong {
    font-size: 16px;
  }

  .case-topic-filter {
    flex-wrap: nowrap;
    margin-inline: -18px;
    padding: 0 18px 6px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .case-topic-filter::-webkit-scrollbar {
    display: none;
  }

  .case-topic-filter button {
    flex: 0 0 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .case-category-card,
  .case-card,
  .case-card__media img {
    transition: none;
  }
}