:root {
  --field-deep: #061f18;
  --field-deep-soft: #0d2a21;
  --field-cream: #fffaf0;
  --field-gold: #d7ad61;
  --field-gold-light: #f0cf8a;
  --field-border: rgba(215, 173, 97, 0.28);
}

body.field-notes-page {
  background: var(--field-deep);
  color: var(--field-cream);
}

.field-notes-page .page-hero {
  border-bottom: 1px solid var(--field-border);
}

.field-notes-page .page-hero__inner {
  padding-bottom: clamp(46px, 7vw, 86px);
}

.field-notes-page .page-lede {
  max-width: 700px;
}

.field-notes-page .page-hero h1 {
  font-size: clamp(48px, 5.8vw, 78px);
  white-space: nowrap;
}

.field-notes {
  width: min(1480px, calc(100% - 48px));
  margin: 0 auto;
  padding: clamp(54px, 7vw, 96px) 0 clamp(80px, 9vw, 128px);
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  padding: 0 !important;
  border: 0 !important;
  margin: -1px !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
}

.field-filter-shell {
  position: sticky;
  top: 72px;
  z-index: 9;
  margin-bottom: clamp(46px, 5vw, 68px);
  overflow-x: auto;
  border: 1px solid var(--field-border);
  background: rgba(6, 31, 24, 0.94);
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.16);
  scrollbar-width: none;
  backdrop-filter: blur(14px);
  -webkit-overflow-scrolling: touch;
}

.field-filter-shell::-webkit-scrollbar {
  display: none;
}

.field-filter {
  display: flex;
  min-width: max-content;
  align-items: stretch;
}

.field-filter button {
  position: relative;
  display: inline-flex;
  min-width: 146px;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex: 1 1 0;
  padding: 0 24px;
  border: 0;
  background: transparent;
  color: rgba(255, 250, 240, 0.78);
  cursor: pointer;
  font: 500 14px/1.2 "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0.04em;
  transition: color 180ms ease, background 180ms ease;
}

.field-filter button::after {
  position: absolute;
  right: 20px;
  bottom: -1px;
  left: 20px;
  height: 2px;
  content: "";
  background: var(--field-gold);
  opacity: 0;
  transform: scaleX(0.4);
  transition: opacity 180ms ease, transform 180ms ease;
}

.field-filter button:hover,
.field-filter button.is-active {
  background: rgba(215, 173, 97, 0.08);
  color: var(--field-gold-light);
}

.field-filter button.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}

.field-filter-count {
  color: rgba(255, 250, 240, 0.58);
  font-size: 11px;
}

.field-filter button.is-active .field-filter-count {
  color: var(--field-gold);
}

.field-filter button:focus-visible,
.field-card-action:focus-visible,
.field-photo:focus-visible,
.gallery-close:focus-visible,
.gallery-nav:focus-visible,
.gallery-thumb:focus-visible {
  z-index: 4;
  outline: 2px solid var(--field-gold-light);
  outline-offset: 3px;
}

.field-chapters {
  display: grid;
  min-width: 0;
  gap: clamp(62px, 8vw, 104px);
}

.field-chapter[hidden] {
  display: none !important;
}

.field-chapter-head {
  display: grid;
  grid-template-columns: auto minmax(250px, 0.75fr) minmax(320px, 1fr);
  align-items: end;
  gap: 14px 24px;
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--field-border);
}

.field-chapter-index {
  color: var(--field-gold-light);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1;
  white-space: nowrap;
}

.field-chapter-head h2 {
  margin: 0;
  color: var(--field-gold-light);
  font-family: Georgia, "Songti SC", "STSong", serif;
  font-size: clamp(27px, 2.7vw, 39px);
  font-weight: 500;
  line-height: 1.18;
}

.field-chapter-description {
  margin: 0;
  color: rgba(255, 250, 240, 0.68);
  font-size: 13px;
  line-height: 1.75;
}

.field-spotlight,
.field-grid,
.field-chapter-grid {
  display: grid;
  min-width: 0;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.field-spotlight {
  margin-bottom: 18px;
}

.field-spotlight-side {
  display: contents;
}

.field-notes.is-chapterized > .field-spotlight,
.field-notes.is-chapterized > .field-grid {
  display: none;
}

.field-card {
  display: flex;
  min-width: 0;
  min-height: 100%;
  overflow: hidden;
  flex-direction: column;
  border: 1px solid var(--field-border);
  border-radius: 7px;
  background: linear-gradient(180deg, rgba(255, 250, 240, 0.09), rgba(255, 250, 240, 0.035));
  color: inherit;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.16);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.field-card:hover {
  border-color: rgba(215, 173, 97, 0.54);
  background: linear-gradient(180deg, rgba(255, 250, 240, 0.13), rgba(255, 250, 240, 0.055));
  transform: translateY(-4px);
}

.field-photo {
  position: relative;
  display: block;
  overflow: hidden;
  width: 100%;
  min-height: 44px;
  padding: 0;
  border: 0;
  background: rgba(255, 250, 240, 0.06);
  color: inherit;
  cursor: zoom-in;
  font: inherit;
  line-height: 0;
  text-align: left;
  text-decoration: none;
}

.field-photo::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(to bottom, rgba(4, 21, 16, 0), rgba(4, 21, 16, 0.16));
  pointer-events: none;
}

.field-photo img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 260ms ease;
}

.field-photo img.field-photo-contain {
  background: rgba(255, 250, 240, 0.94);
  object-fit: contain;
  object-position: center top;
}

.field-photo img.field-photo-buffett {
  object-position: center 17%;
}

.field-photo img.field-photo-focus-top {
  object-position: center 22%;
}

.field-photo img.field-photo-yangpu {
  object-position: center 76%;
}

.field-photo img.field-photo-washu {
  object-position: center 36%;
}

.field-photo img.field-photo-tiger-ranking {
  object-position: center 39%;
}

.field-card:hover .field-photo img:not(.field-photo-contain) {
  transform: scale(1.035);
}

.field-gallery-badge {
  position: absolute;
  right: 12px;
  bottom: 12px;
  z-index: 2;
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 0 11px;
  border: 1px solid rgba(215, 173, 97, 0.48);
  border-radius: 999px;
  background: rgba(4, 21, 16, 0.82);
  color: var(--field-gold-light);
  font: 500 11px/1 "Avenir Next", "PingFang SC", sans-serif;
  letter-spacing: 0.12em;
  backdrop-filter: blur(10px);
}

.field-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 18px;
}

.field-tag {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 11px;
  padding-bottom: 5px;
  border-bottom: 1px solid rgba(215, 173, 97, 0.38);
  color: var(--field-gold);
  font: 500 10px/1.45 "Avenir Next", "PingFang SC", sans-serif;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.field-card h3,
.field-card h4 {
  margin: 0 0 10px;
  color: var(--field-gold-light);
  font-family: Georgia, "Songti SC", "STSong", serif;
  font-size: clamp(19px, 1.45vw, 23px);
  font-weight: 500;
  line-height: 1.38;
}

.field-card p {
  display: -webkit-box;
  overflow: hidden;
  margin: 0;
  color: rgba(255, 250, 240, 0.74);
  font-size: 14px;
  line-height: 1.82;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.field-card.is-expanded p {
  display: block;
  overflow: visible;
}

.field-card-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 16px;
}

.field-meta {
  color: rgba(255, 250, 240, 0.58);
  font: 500 10px/1.55 "Avenir Next", "PingFang SC", sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.field-card-action {
  display: inline-flex;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: flex-end;
  flex: 0 0 auto;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--field-gold-light);
  cursor: pointer;
  font: 500 11px/1.2 "Avenir Next", "PingFang SC", sans-serif;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.field-card-action[hidden],
.field-expand-close,
.field-card.is-expanded .field-expand-open {
  display: none;
}

.field-card.is-expanded .field-expand-close {
  display: inline;
}

body.gallery-open {
  overflow: hidden;
}

.gallery-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-items: center;
  padding: clamp(14px, 3vw, 34px);
}

.gallery-modal.is-open {
  display: grid;
}

.gallery-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(0, 0, 0, 0.78);
  cursor: zoom-out;
}

.gallery-dialog {
  position: relative;
  z-index: 1;
  display: grid;
  width: min(1120px, 96vw);
  max-height: calc(100vh - 36px);
  overflow: hidden;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid rgba(215, 173, 97, 0.38);
  border-radius: 8px;
  background: rgba(7, 30, 23, 0.99);
  color: rgba(255, 250, 240, 0.86);
  box-shadow: 0 36px 100px rgba(0, 0, 0, 0.48);
}

.gallery-image-wrap {
  display: grid;
  min-height: 260px;
  max-height: min(68vh, calc(100vh - 310px), 720px);
  place-items: center;
  background: rgba(0, 0, 0, 0.28);
}

.gallery-image-wrap img {
  display: block;
  max-width: 100%;
  max-height: min(68vh, calc(100vh - 310px), 720px);
  object-fit: contain;
}

.gallery-info {
  display: grid;
  gap: 8px;
  padding: 18px 22px 20px;
  border-top: 1px solid rgba(215, 173, 97, 0.2);
}

.gallery-meta {
  color: var(--field-gold);
  font: 500 11px/1.4 "Avenir Next", "PingFang SC", sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.gallery-info h2 {
  margin: 0;
  color: var(--field-gold-light);
  font-family: Georgia, "Songti SC", "STSong", serif;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 500;
  line-height: 1.25;
}

.gallery-info p {
  margin: 0;
  color: rgba(255, 250, 240, 0.74);
  font-size: 14px;
  line-height: 1.75;
}

.gallery-close,
.gallery-nav {
  position: absolute;
  z-index: 2;
  display: inline-grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid rgba(215, 173, 97, 0.4);
  border-radius: 50%;
  background: rgba(4, 21, 16, 0.86);
  color: var(--field-gold-light);
  cursor: pointer;
  font: 400 25px/1 "Avenir Next", "PingFang SC", sans-serif;
  backdrop-filter: blur(10px);
}

.gallery-close {
  top: 16px;
  right: 16px;
}

.gallery-nav {
  top: 42%;
  transform: translateY(-50%);
}

.gallery-prev {
  left: 16px;
}

.gallery-next {
  right: 16px;
}

.gallery-thumbs {
  display: flex;
  gap: 8px;
  padding: 0 22px 22px;
  overflow-x: auto;
}

.gallery-thumb {
  width: 72px;
  height: 52px;
  min-width: 44px;
  min-height: 44px;
  flex: 0 0 auto;
  overflow: hidden;
  padding: 0;
  border: 1px solid rgba(215, 173, 97, 0.24);
  border-radius: 6px;
  background: rgba(255, 250, 240, 0.08);
  cursor: pointer;
  opacity: 0.62;
}

.gallery-thumb.is-active {
  border-color: rgba(215, 173, 97, 0.84);
  opacity: 1;
}

.gallery-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 1100px) {
  .field-chapter-head {
    grid-template-columns: auto 1fr;
  }

  .field-chapter-description {
    grid-column: 2;
  }

  .field-spotlight,
  .field-grid,
  .field-chapter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .field-notes {
    width: calc(100% - 36px);
  }

  .field-filter-shell {
    top: 62px;
    width: calc(100% + 18px);
  }

  .field-filter button {
    min-width: 132px;
    min-height: 48px;
    padding: 0 18px;
  }

  .field-chapter-head {
    grid-template-columns: auto 1fr;
    align-items: start;
  }

  .field-chapter-description {
    grid-column: 1 / -1;
  }

  .field-spotlight,
  .field-grid,
  .field-chapter-grid {
    grid-template-columns: 1fr;
  }

  .field-card-body {
    min-height: 252px;
  }

  .gallery-modal {
    padding: 10px;
  }

  .gallery-dialog {
    width: calc(100vw - 20px);
    max-height: calc(100vh - 20px);
  }

  .gallery-image-wrap,
  .gallery-image-wrap img {
    max-height: min(52vh, calc(100vh - 290px));
  }

  .gallery-info {
    padding: 16px 16px 18px;
  }

  .gallery-prev {
    left: 10px;
  }

  .gallery-next {
    right: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .field-card,
  .field-photo img,
  .field-filter button::after {
    transition: none;
  }
}