/* 渔业专题电子海图案例 — scoped under .case-fishery */
.case-fishery {
  --ink: #10232c;
  --muted: #5a6f78;
  --brand: #1a7a92;
  --brand-deep: #0b4f63;
  --accent: #c45a3a;
  --ice: #e8f1f4;
  --mist: #f4f8f9;
  --line: #d3e2e7;
  --navy: #071c28;
  --navy-2: #0c2a38;
  --white: #fff;
  --container: 1416px;
  --space: clamp(96px, 11vw, 160px);
  color: var(--ink);
  background: var(--white);
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.case-fishery *,
.case-fishery *::before,
.case-fishery *::after {
  box-sizing: border-box;
}

.case-fishery img {
  display: block;
  max-width: 100%;
}

.case-fishery h1,
.case-fishery h2,
.case-fishery h3,
.case-fishery p,
.case-fishery dl,
.case-fishery dd,
.case-fishery dt {
  margin-top: 0;
}

body.page-case-fishery {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body.page-case-fishery .hadheight {
  display: block;
  height: 0;
}

.case-fishery .container {
  width: min(calc(100% - 60px), var(--container));
  margin-inline: auto;
}

.case-fishery .case-section {
  position: relative;
  padding: var(--space) 0;
  overflow: hidden;
}

.case-fishery .section-index {
  position: absolute;
  top: clamp(32px, 4.5vw, 68px);
  left: max(24px, calc((100vw - var(--container)) / 2 - 28px));
  color: rgba(15, 55, 68, 0.07);
  font-size: clamp(112px, 14vw, 196px);
  line-height: 0.8;
  font-weight: 700;
  letter-spacing: -0.1em;
  pointer-events: none;
  user-select: none;
}

.case-fishery .dark .section-index {
  color: rgba(255, 255, 255, 0.06);
}

.case-fishery .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.case-fishery .eyebrow::before {
  content: "";
  width: 42px;
  height: 1px;
  background: currentColor;
}

.case-fishery .section-heading {
  max-width: 920px;
  margin-bottom: 56px;
}

.case-fishery .section-heading h2 {
  margin-bottom: 22px;
  font-size: clamp(36px, 4.6vw, 60px);
  line-height: 1.28;
  letter-spacing: -0.045em;
  font-weight: 650;
}

.case-fishery .section-heading p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.9;
}

/* —— Intro —— */
.case-fishery .intro {
  min-height: 100vh;
  display: grid;
  align-items: center;
  background:
    radial-gradient(ellipse 70% 55% at 18% 42%, rgba(26, 122, 146, 0.14), transparent 60%),
    linear-gradient(145deg, #dfecef 0%, #edf4f6 42%, #f7fbfc 100%);
}

.case-fishery .intro-glow {
  position: absolute;
  inset: auto -10% -20% 40%;
  height: 55%;
  background: radial-gradient(circle, rgba(196, 90, 58, 0.08), transparent 68%);
  pointer-events: none;
}

.case-fishery .intro-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: clamp(48px, 7.5vw, 100px);
  align-items: center;
}

.case-fishery .vessel-hero {
  position: relative;
  margin: 0;
  isolation: isolate;
}

.case-fishery .vessel-hero::before {
  content: "";
  position: absolute;
  inset: 18% -8% -10% 18%;
  z-index: -1;
  background: linear-gradient(135deg, rgba(7, 28, 40, 0.18), rgba(26, 122, 146, 0.2));
  transform: rotate(2deg);
}

.case-fishery .vessel-hero img {
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
  object-position: 35% 45%;
}

.case-fishery .vessel-hero figcaption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  color: #6a818a;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.case-fishery .intro-copy h1 {
  margin-bottom: 24px;
  font-size: clamp(46px, 5.4vw, 72px);
  line-height: 1.16;
  letter-spacing: -0.055em;
  font-weight: 700;
}

.case-fishery .intro-copy > p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.95;
}

.case-fishery .intro-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  margin: 36px 0 0;
  border-top: 1px solid var(--line);
}

.case-fishery .intro-facts div {
  padding: 20px 16px 0 0;
}

.case-fishery .intro-facts div:nth-child(even) {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.case-fishery .intro-facts dt {
  margin-bottom: 8px;
  color: #7c9199;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.case-fishery .intro-facts dd {
  margin: 0;
  color: var(--brand-deep);
  font-size: 17px;
  line-height: 1.55;
  font-weight: 650;
}

/* —— Story —— */
.case-fishery .story {
  padding: clamp(72px, 8vw, 112px) 0;
  background: var(--navy);
  color: var(--white);
}

.case-fishery .story-layout {
  display: grid;
  grid-template-columns: 0.55fr 1.45fr;
  gap: clamp(36px, 7vw, 100px);
  align-items: start;
}

.case-fishery .story-label {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 10px;
  color: #8fc0cb;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.case-fishery .story-label::after {
  content: "";
  width: 64px;
  height: 1px;
  background: rgba(143, 192, 203, 0.55);
}

.case-fishery .story-copy {
  margin: 0;
  font-size: clamp(26px, 2.7vw, 38px);
  line-height: 1.7;
  letter-spacing: -0.02em;
  color: rgba(255, 255, 255, 0.88);
}

.case-fishery .story-copy strong {
  color: #fff;
  font-weight: 700;
}

/* —— Capability —— */
.case-fishery .dark {
  color: var(--white);
  background:
    radial-gradient(ellipse 50% 40% at 80% 0%, rgba(26, 122, 146, 0.22), transparent 55%),
    linear-gradient(180deg, #061820 0%, #0a2430 100%);
}

.case-fishery .dark .eyebrow {
  color: #8fc0cb;
}

.case-fishery .dark .section-heading p {
  color: rgba(255, 255, 255, 0.62);
}

.case-fishery .ecdis-screen {
  margin: 0 0 48px;
  padding: 14px;
  background: #04141c;
  box-shadow: 0 36px 80px rgba(0, 0, 0, 0.35);
}

.case-fishery .ecdis-screen img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center 28%;
  background: #0b1c24;
}

.case-fishery .ecdis-screen figcaption {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 8px 2px;
  color: rgba(255, 255, 255, 0.45);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.case-fishery .layer-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.case-fishery .layer-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  min-height: 168px;
  padding: 28px 22px 8px 0;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.case-fishery .layer-item:last-child {
  border-right: 0;
  padding-right: 0;
}

.case-fishery .layer-item b {
  color: var(--accent);
  font-size: 14px;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.case-fishery .layer-item h3 {
  margin: 0 0 10px;
  color: #fff;
  font-size: 20px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.case-fishery .layer-item p {
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 15px;
  line-height: 1.75;
}

/* —— Sea trial —— */
.case-fishery .soft {
  background:
    linear-gradient(180deg, #f7fbfc 0%, #eef5f7 100%);
}

.case-fishery .trial-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.case-fishery .trial-step {
  position: relative;
  min-height: 220px;
  padding: 32px 28px;
  background: var(--white);
  border-top: 3px solid var(--brand);
  box-shadow: 0 18px 40px rgba(12, 48, 60, 0.05);
}

.case-fishery .trial-step small {
  display: block;
  margin-bottom: 48px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.case-fishery .trial-step h3 {
  margin-bottom: 12px;
  font-size: 24px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.case-fishery .trial-step p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.case-fishery .trial-note {
  max-width: 820px;
  margin: 40px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.9;
}

/* —— Delivery —— */
.case-fishery .ice {
  background:
    radial-gradient(ellipse 55% 45% at 0% 100%, rgba(26, 122, 146, 0.1), transparent 55%),
    var(--ice);
}

.case-fishery .close-layout {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: clamp(42px, 7vw, 96px);
  align-items: start;
}

.case-fishery .close-copy h2 {
  margin-bottom: 22px;
  color: var(--brand-deep);
  font-size: clamp(36px, 4.5vw, 58px);
  line-height: 1.28;
  letter-spacing: -0.045em;
  font-weight: 650;
}

.case-fishery .close-copy > p {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.95;
}

.case-fishery .delivery-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.case-fishery .delivery-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 18px;
  align-items: start;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.case-fishery .delivery-item small {
  color: var(--brand);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding-top: 4px;
}

.case-fishery .delivery-item h3 {
  margin: 0 0 8px;
  color: var(--ink);
  font-size: 22px;
  font-weight: 650;
}

.case-fishery .delivery-item p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.case-fishery .case-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  align-items: start;
  margin-top: 64px;
  border-top: 2px solid var(--brand);
}

.case-fishery .case-flow div {
  position: relative;
  padding: 22px 12px 0 0;
  color: var(--brand-deep);
  font-size: 15px;
  line-height: 1.65;
  font-weight: 550;
}

.case-fishery .case-flow div::before {
  content: "";
  position: absolute;
  top: -9px;
  left: 0;
  width: 16px;
  height: 16px;
  border: 3px solid var(--ice);
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 1px var(--brand);
}

.case-fishery .case-flow span {
  display: block;
  margin-bottom: 4px;
  color: #7d9199;
  font-size: 12px;
  letter-spacing: 0.1em;
  font-weight: 700;
}

.case-fishery .case-note {
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  color: #334c56;
  font-size: clamp(24px, 2.7vw, 34px);
  line-height: 1.65;
  letter-spacing: -0.02em;
}

.case-fishery .case-note strong {
  color: var(--brand-deep);
  font-weight: 700;
}

/* —— Motion —— */
.case-fishery .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.case-fishery .reveal.is-visible {
  opacity: 1;
  transform: none;
}

.case-fishery .intro-layout .reveal:nth-child(2) {
  transition-delay: 0.12s;
}

.case-fishery .layer-row.reveal {
  transition-delay: 0.1s;
}

@media (prefers-reduced-motion: reduce) {
  .case-fishery .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (max-width: 1020px) {
  .case-fishery .container {
    width: min(calc(100% - 44px), var(--container));
  }

  .case-fishery .intro {
    min-height: auto;
  }

  .case-fishery .intro-layout,
  .case-fishery .story-layout,
  .case-fishery .close-layout {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .case-fishery .layer-row,
  .case-fishery .trial-steps {
    grid-template-columns: 1fr 1fr;
  }

  .case-fishery .layer-item:nth-child(2n) {
    border-right: 0;
    padding-right: 0;
  }

  .case-fishery .layer-item:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .case-fishery .case-flow {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 48px;
    border-top: 0;
    border-left: 2px solid var(--brand);
  }

  .case-fishery .case-flow div {
    padding: 0 0 22px 22px;
  }

  .case-fishery .case-flow div::before {
    top: 4px;
    left: -9px;
  }

  .case-fishery .case-flow div:last-child {
    padding-bottom: 0;
  }
}

@media (max-width: 672px) {
  .case-fishery {
    --space: 88px;
  }

  .case-fishery .container {
    width: min(calc(100% - 32px), var(--container));
  }

  .case-fishery .section-index {
    left: 14px;
    font-size: 96px;
  }

  .case-fishery .intro-copy h1 {
    font-size: 42px;
  }

  .case-fishery .intro-copy > p,
  .case-fishery .section-heading p,
  .case-fishery .close-copy > p,
  .case-fishery .trial-note {
    font-size: 17px;
  }

  .case-fishery .section-heading {
    margin-bottom: 40px;
  }

  .case-fishery .section-heading h2,
  .case-fishery .close-copy h2 {
    font-size: 36px;
  }

  .case-fishery .story-copy {
    font-size: 24px;
  }

  .case-fishery .layer-row,
  .case-fishery .trial-steps,
  .case-fishery .intro-facts {
    grid-template-columns: 1fr;
  }

  .case-fishery .intro-facts div:nth-child(even) {
    padding-left: 0;
    border-left: 0;
  }

  .case-fishery .intro-facts div + div {
    padding-top: 16px;
  }

  .case-fishery .layer-item {
    min-height: 0;
    padding: 22px 0;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .case-fishery .layer-item:last-child {
    border-bottom: 0;
  }

  .case-fishery .vessel-hero figcaption,
  .case-fishery .ecdis-screen figcaption {
    flex-direction: column;
    gap: 6px;
  }

  .case-fishery .vessel-hero::before {
    display: none;
  }

  .case-fishery .trial-step {
    min-height: 0;
  }

  .case-fishery .trial-step small {
    margin-bottom: 28px;
  }
}