/* 北京赛德莱特船岸一体化平台案例 — scoped under .case-saidelait
   相对原稿尺寸放大 120%，适配 100% 系统缩放下的观感 */
.case-saidelait {
  --ink: #112029;
  --muted: #5d7179;
  --brand: #1b7696;
  --brand-deep: #0d4d66;
  --ice: #edf4f6;
  --mist: #f8fbfb;
  --line: #d9e5e8;
  --navy: #071f2d;
  --navy-2: #04151f;
  --white: #fff;
  --container: 1416px;
  --space: clamp(98.4px, 12vw, 172.8px);
  color: var(--ink);
  background: var(--white);
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

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

.case-saidelait .container {
  width: min(calc(100% - 62.4px), var(--container));
  margin-inline: auto;
}

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

.case-saidelait .intro {
  min-height: 100vh;
  display: grid;
  align-items: center;
  background: var(--ice);
}

.case-saidelait .case-section.soft {
  background: var(--mist);
}

.case-saidelait .case-section.ice {
  background: var(--ice);
}

.case-saidelait .case-section.dark {
  color: var(--white);
  background: var(--navy);
}

.case-saidelait .section-index {
  position: absolute;
  top: clamp(36px, 4.8vw, 72px);
  left: max(27.6px, calc((100vw - var(--container)) / 2 - 30px));
  color: #e5edef;
  font-size: clamp(115.2px, 14.4vw, 204px);
  line-height: 0.8;
  font-weight: 700;
  letter-spacing: -0.1em;
  pointer-events: none;
  user-select: none;
}

.case-saidelait .dark .section-index {
  color: rgba(255, 255, 255, 0.08);
}

.case-saidelait .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 16.8px;
  margin-bottom: 26.4px;
  color: var(--brand);
  font-size: 13.2px;
  font-weight: 700;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

.case-saidelait .eyebrow::before {
  content: "";
  width: 44.4px;
  height: 1.2px;
  background: currentColor;
}

.case-saidelait .intro-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.17fr) minmax(0, 0.83fr);
  gap: clamp(50.4px, 8.4vw, 110.4px);
  align-items: center;
}

.case-saidelait .intro-screen,
.case-saidelait .large-screen {
  margin: 0;
  padding: 12px;
  background: var(--navy);
  box-shadow: 0 30px 69.6px rgba(10, 47, 61, 0.15);
}

.case-saidelait .intro-screen img {
  width: 100%;
  aspect-ratio: 2560 / 1239;
  object-fit: contain;
  background: #f5f8fa;
}

.case-saidelait .screen-caption {
  display: flex;
  justify-content: space-between;
  gap: 14.4px;
  padding: 16.8px 8.4px 3.6px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.case-saidelait .intro-copy h1 {
  margin-bottom: 26.4px;
  font-size: clamp(43.2px, 5.1vw, 68.4px);
  line-height: 1.24;
  letter-spacing: -0.055em;
  font-weight: 650;
}

.case-saidelait .intro-copy > p {
  margin-bottom: 33.6px;
  color: var(--muted);
  font-size: 20.4px;
  line-height: 1.95;
}

.case-saidelait .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10.8px;
}

.case-saidelait .tags span {
  padding: 9.6px 14.4px;
  color: var(--brand-deep);
  border: 1.2px solid #cbdde1;
  background: rgba(255, 255, 255, 0.58);
  font-size: 14.4px;
}

.case-saidelait .intro-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin: 33.6px 0 0;
  border-top: 1.2px solid var(--line);
}

.case-saidelait .intro-facts div {
  padding: 18px 14.4px 0 0;
}

.case-saidelait .intro-facts div + div {
  padding-left: 15.6px;
  border-left: 1.2px solid var(--line);
}

.case-saidelait .intro-facts dt {
  margin-bottom: 7.2px;
  color: #80939b;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.case-saidelait .intro-facts dd {
  margin: 0;
  color: var(--brand-deep);
  font-size: 16.8px;
  line-height: 1.6;
}

.case-saidelait .section-heading {
  max-width: 948px;
  margin-bottom: 66px;
}

.case-saidelait .section-heading h2 {
  margin-bottom: 22.8px;
  font-size: clamp(38.4px, 4.9vw, 64.8px);
  line-height: 1.28;
  letter-spacing: -0.05em;
  font-weight: 650;
}

.case-saidelait .section-heading p {
  max-width: 900px;
  margin: 0;
  color: var(--muted);
  font-size: 19.2px;
  line-height: 1.95;
}

.case-saidelait .dark .eyebrow {
  color: #9ec8cf;
}

.case-saidelait .dark .section-heading p {
  color: rgba(255, 255, 255, 0.64);
}

.case-saidelait .nav-data-layout {
  display: grid;
  grid-template-columns: 1.17fr 0.83fr;
  gap: clamp(48px, 8.4vw, 110.4px);
  align-items: center;
}

.case-saidelait .nav-screen {
  margin: 0;
  padding: 12px;
  background: var(--navy);
  box-shadow: 0 30px 69.6px rgba(10, 47, 61, 0.15);
}

.case-saidelait .nav-screen img {
  width: 100%;
  aspect-ratio: 2560 / 1239;
  object-fit: contain;
  background: #0a1e2e;
}

.case-saidelait .nav-screen figcaption {
  display: flex;
  justify-content: space-between;
  gap: 14.4px;
  padding: 16.8px 8.4px 3.6px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.case-saidelait .data-copy h3 {
  margin-bottom: 20.4px;
  color: var(--brand-deep);
  font-size: clamp(32.4px, 3.8vw, 50.4px);
  line-height: 1.4;
  letter-spacing: -0.04em;
  font-weight: 650;
}

.case-saidelait .data-copy > p {
  margin-bottom: 33.6px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.9;
}

.case-saidelait .data-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1.2px solid var(--line);
}

.case-saidelait .data-list li {
  display: grid;
  grid-template-columns: 126px 1fr;
  gap: 16.8px;
  padding: 18px 0;
  border-bottom: 1.2px solid var(--line);
}

.case-saidelait .data-list b {
  color: var(--brand-deep);
  font-size: 15.6px;
  font-weight: 650;
}

.case-saidelait .data-list span {
  color: #334c56;
  font-size: 16.8px;
  line-height: 1.7;
}

.case-saidelait .equipment-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 21.6px;
  margin-top: 72px;
}

.case-saidelait .equipment-screen {
  margin: 0;
  padding: 12px;
  background: #071c2b;
  box-shadow: 0 22.8px 52.8px rgba(10, 47, 61, 0.12);
}

.case-saidelait .equipment-screen img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #0b1d30;
}

.case-saidelait .equipment-screen figcaption {
  padding: 15.6px 7.2px 3.6px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 14.4px;
  line-height: 1.7;
}

.case-saidelait .equipment-screen strong {
  color: #b5d7dc;
  font-weight: 650;
}

.case-saidelait .alarm-layout {
  display: grid;
  grid-template-columns: 1.17fr 0.83fr;
  gap: clamp(48px, 8.4vw, 110.4px);
  align-items: center;
}

.case-saidelait .alarm-screen {
  margin: 0;
  padding: 12px;
  background: #061a28;
  box-shadow: 0 32.4px 72px rgba(0, 0, 0, 0.22);
}

.case-saidelait .alarm-screen img {
  width: 100%;
  aspect-ratio: 2560 / 1239;
  object-fit: contain;
  background: #0b2132;
}

.case-saidelait .alarm-screen figcaption {
  display: flex;
  justify-content: space-between;
  gap: 14.4px;
  padding: 16.8px 8.4px 3.6px;
  color: rgba(255, 255, 255, 0.48);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.case-saidelait .alarm-copy h3 {
  margin-bottom: 20.4px;
  color: var(--white);
  font-size: clamp(32.4px, 3.8vw, 50.4px);
  line-height: 1.4;
  letter-spacing: -0.04em;
  font-weight: 650;
}

.case-saidelait .alarm-copy > p {
  margin-bottom: 33.6px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 18px;
  line-height: 1.9;
}

.case-saidelait .alarm-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1.2px solid rgba(255, 255, 255, 0.2);
}

.case-saidelait .alarm-list li {
  display: grid;
  grid-template-columns: 33.6px 1fr;
  gap: 14.4px;
  padding: 18px 0;
  border-bottom: 1.2px solid rgba(255, 255, 255, 0.2);
}

.case-saidelait .alarm-list b {
  color: #9ec8cf;
  font-size: 14.4px;
  letter-spacing: 0.06em;
}

.case-saidelait .alarm-list span {
  color: rgba(255, 255, 255, 0.76);
  font-size: 16.8px;
  line-height: 1.7;
}

.case-saidelait .alarm-center {
  margin: 78px 0 0;
  padding: 12px;
  background: #061a28;
  box-shadow: 0 27.6px 64.8px rgba(0, 0, 0, 0.19);
}

.case-saidelait .alarm-center img {
  width: 100%;
  aspect-ratio: 2560 / 1239;
  object-fit: contain;
  background: #0b2132;
}

.case-saidelait .alarm-center figcaption {
  display: flex;
  justify-content: space-between;
  gap: 14.4px;
  padding: 16.8px 8.4px 3.6px;
  color: rgba(255, 255, 255, 0.48);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.case-saidelait .loop-layout {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: clamp(45.6px, 8.4vw, 112.8px);
  align-items: start;
}

.case-saidelait .loop-copy h2 {
  margin-bottom: 20.4px;
  color: var(--brand-deep);
  font-size: clamp(37.2px, 4.7vw, 62.4px);
  line-height: 1.3;
  letter-spacing: -0.05em;
  font-weight: 650;
}

.case-saidelait .loop-copy > p {
  margin: 0;
  color: var(--muted);
  font-size: 19.2px;
  line-height: 1.95;
}

.case-saidelait .loop-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  border-top: 1.2px solid var(--line);
  border-left: 1.2px solid var(--line);
}

.case-saidelait .loop-step {
  min-height: 225.6px;
  padding: 26.4px 22.8px;
  border-right: 1.2px solid var(--line);
  border-bottom: 1.2px solid var(--line);
  background: #fff;
}

.case-saidelait .loop-step small {
  display: block;
  margin-bottom: 40.8px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.case-saidelait .loop-step h3 {
  margin-bottom: 12px;
  color: var(--ink);
  font-size: 21.6px;
  font-weight: 650;
}

.case-saidelait .loop-step p {
  margin: 0;
  color: var(--muted);
  font-size: 15.6px;
  line-height: 1.8;
}

.case-saidelait .loop-line {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  align-items: start;
  margin-top: 72px;
  border-top: 2.4px solid var(--brand);
}

.case-saidelait .loop-node {
  position: relative;
  padding: 21.6px 12px 0 0;
  color: var(--brand-deep);
  font-size: 15.6px;
  line-height: 1.65;
}

.case-saidelait .loop-node::before {
  content: "";
  position: absolute;
  top: -9.6px;
  left: 0;
  width: 16.8px;
  height: 16.8px;
  border: 3.6px solid var(--mist);
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 1.2px var(--brand);
}

.case-saidelait .loop-node span {
  display: block;
  color: #81939a;
  font-size: 12px;
  letter-spacing: 0.1em;
}

.case-saidelait .loop-note {
  margin-top: 62.4px;
  padding-top: 27.6px;
  border-top: 1.2px solid var(--line);
  color: #334c56;
  font-size: clamp(24px, 2.8vw, 34.8px);
  line-height: 1.65;
  letter-spacing: -0.02em;
}

.case-saidelait .loop-note strong {
  color: var(--brand-deep);
  font-weight: 650;
}

@media (max-width: 1020px) {
  .case-saidelait .container {
    width: min(calc(100% - 45.6px), var(--container));
  }

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

  .case-saidelait .intro-layout,
  .case-saidelait .nav-data-layout,
  .case-saidelait .alarm-layout,
  .case-saidelait .loop-layout {
    grid-template-columns: 1fr;
    gap: 50.4px;
  }

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

  .case-saidelait .loop-steps {
    grid-template-columns: 1fr;
  }

  .case-saidelait .loop-line {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 50.4px;
    border-top: 0;
    border-left: 2.4px solid var(--brand);
  }

  .case-saidelait .loop-node {
    padding: 0 0 24px 21.6px;
  }

  .case-saidelait .loop-node::before {
    top: 3.6px;
    left: -9.6px;
  }

  .case-saidelait .loop-node:last-child {
    padding-bottom: 0;
  }
}

@media (max-width: 672px) {
  .case-saidelait {
    --space: 91.2px;
  }

  .case-saidelait .container {
    width: min(calc(100% - 33.6px), var(--container));
  }

  .case-saidelait .section-index {
    left: 16.8px;
    font-size: 102px;
  }

  .case-saidelait .intro-copy h1 {
    font-size: 43.2px;
  }

  .case-saidelait .intro-copy > p,
  .case-saidelait .section-heading p,
  .case-saidelait .data-copy > p,
  .case-saidelait .alarm-copy > p,
  .case-saidelait .loop-copy > p {
    font-size: 18px;
  }

  .case-saidelait .intro-facts {
    grid-template-columns: 1fr 1fr;
  }

  .case-saidelait .intro-facts div:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }

  .case-saidelait .intro-facts div:nth-child(3),
  .case-saidelait .intro-facts div:nth-child(4) {
    padding-top: 15.6px;
  }

  .case-saidelait .section-heading {
    margin-bottom: 46.8px;
  }

  .case-saidelait .section-heading h2 {
    font-size: 39.6px;
  }

  .case-saidelait .data-list li {
    grid-template-columns: 99.6px 1fr;
    gap: 12px;
  }

  .case-saidelait .screen-caption,
  .case-saidelait .nav-screen figcaption,
  .case-saidelait .alarm-screen figcaption,
  .case-saidelait .alarm-center figcaption {
    flex-direction: column;
    gap: 8.4px;
  }
}