.cooperation-immersive-page {
  --cooperation-header-height: 77px;
  --cooperation-ink: #151515;
  --cooperation-muted: #626a73;
  --cooperation-line: #d9dde2;
  --cooperation-blue: #2b6bff;
  margin: 0;
  overflow-x: hidden;
  background: #fff;
  color: var(--cooperation-ink);
}

.cooperation-immersive-page *,
.cooperation-immersive-page *::before,
.cooperation-immersive-page *::after {
  box-sizing: border-box;
}

.cooperation-immersive-page .catalog-header {
  position: sticky;
  z-index: 120;
  top: 0;
  background: rgb(255 255 255 / 96%);
  backdrop-filter: blur(18px);
}

.cooperation-immersive-page.cooperation-detail-open {
  overflow: hidden;
}

.cooperation-immersive {
  position: relative;
  min-height: calc(100dvh - var(--cooperation-header-height));
  overflow: clip;
}

.cooperation-portal,
.cooperation-portal__grid {
  min-height: calc(100dvh - var(--cooperation-header-height));
}

.cooperation-portal__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-bottom: 1px solid var(--cooperation-line);
}

.cooperation-entry {
  --entry-background: #0b0b0b;
  --entry-foreground: #fff;
  --entry-muted: #b9bec5;
  --entry-line: rgb(255 255 255 / 22%);
  --entry-overlay: rgb(255 255 255 / 6%);
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 100%;
  padding: clamp(32px, 4vw, 64px);
  overflow: hidden;
  align-items: stretch;
  flex-direction: column;
  justify-content: space-between;
  gap: 32px;
  border: 0;
  border-right: 1px solid var(--entry-line);
  background: var(--entry-background);
  color: var(--entry-foreground);
  font: inherit;
  text-align: left;
  cursor: pointer;
  isolation: isolate;
  transition: filter 280ms cubic-bezier(0.22, 1, 0.36, 1);
}

.cooperation-entry:last-child {
  border-right: 0;
}

.cooperation-entry[data-intent-open="student_project"] {
  --entry-background: #0b0b0b;
}

.cooperation-entry[data-intent-open="engineering_project"] {
  --entry-background: #fff;
  --entry-foreground: #0b0b0b;
  --entry-muted: #59616a;
  --entry-line: #d7d7d7;
  --entry-overlay: rgb(11 11 11 / 5%);
}

.cooperation-entry[data-intent-open="consulting_review"] {
  --entry-background: #0b0b0b;
}

.cooperation-entry::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background: linear-gradient(135deg, var(--entry-overlay), transparent 46%);
  content: "";
  opacity: 0;
  transition: opacity 280ms cubic-bezier(0.22, 1, 0.36, 1);
}

.cooperation-entry:hover,
.cooperation-entry:focus-visible {
  outline: 0;
}

.cooperation-entry:hover::before,
.cooperation-entry:focus-visible::before {
  opacity: 1;
}

.cooperation-entry:focus-visible {
  box-shadow: inset 0 0 0 3px var(--cooperation-blue);
}

.cooperation-entry.is-pointer-focus-restored:focus-visible,
.cooperation-detail-close.is-pointer-focus-restored:focus-visible {
  box-shadow: none;
}

.cooperation-entry__top,
.cooperation-entry__bottom {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.cooperation-portal .cooperation-entry > .cooperation-entry__top,
.cooperation-portal .cooperation-entry > .cooperation-entry__body,
.cooperation-portal .cooperation-entry > .cooperation-entry__bottom {
  opacity: 1;
  transition: opacity 140ms ease;
}

.cooperation-immersive-page.cooperation-opening-transition .cooperation-portal .cooperation-entry > .cooperation-entry__top,
.cooperation-immersive-page.cooperation-opening-transition .cooperation-portal .cooperation-entry > .cooperation-entry__body,
.cooperation-immersive-page.cooperation-opening-transition .cooperation-portal .cooperation-entry > .cooperation-entry__bottom {
  opacity: 0;
}

.cooperation-entry__number,
.cooperation-entry__kind {
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.08em;
}

.cooperation-entry__kind {
  color: inherit;
  opacity: 0.78;
}

.cooperation-entry__body {
  position: relative;
  z-index: 1;
  margin-block: auto;
}

.cooperation-entry__title {
  display: block;
  margin: 0;
  font-size: clamp(48px, 5.8vw, 88px);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.065em;
  text-wrap: balance;
}

.cooperation-entry__summary {
  display: block;
  max-width: 34ch;
  margin-top: 24px;
  color: var(--entry-muted);
  font-size: 15px;
  line-height: 1.75;
}

.cooperation-entry__action {
  font-size: 13px;
  font-weight: 700;
}

.cooperation-entry__arrow {
  color: inherit;
  font-size: 24px;
  line-height: 1;
  transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.cooperation-entry:hover .cooperation-entry__arrow,
.cooperation-entry:focus-visible .cooperation-entry__arrow {
  transform: translate(4px, -4px);
}

.cooperation-detail-shell {
  position: fixed;
  z-index: 90;
  top: calc(var(--cooperation-header-height) - 1px);
  right: 0;
  bottom: 0;
  left: 0;
  pointer-events: auto;
}

.cooperation-detail-shell[hidden],
.cooperation-detail[hidden] {
  display: none !important;
}

.cooperation-detail-shell__surface {
  --origin-top: 0px;
  --origin-right: 0px;
  --origin-bottom: 0px;
  --origin-left: 0px;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  background: #fff;
  clip-path: inset(var(--origin-top) var(--origin-right) var(--origin-bottom) var(--origin-left));
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  transition: clip-path 440ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: clip-path;
}

.cooperation-detail-shell[data-active-intent="student_project"] .cooperation-detail-shell__surface,
.cooperation-detail-shell[data-active-intent="consulting_review"] .cooperation-detail-shell__surface {
  background: #0b0b0b;
}

.cooperation-detail-shell.is-open .cooperation-detail-shell__surface {
  clip-path: inset(0 0 0 0);
}

.cooperation-detail-shell.is-returning .cooperation-detail-shell__surface {
  transition-duration: 380ms;
}

.cooperation-entry--transition-clone {
  position: fixed;
  z-index: 100;
  top: var(--clone-top);
  left: var(--clone-left);
  width: var(--clone-width);
  height: var(--clone-height);
  min-height: 0;
  margin: 0;
  pointer-events: none;
  opacity: 0;
  cursor: default;
  transition: opacity 160ms ease;
  will-change: opacity;
}

.cooperation-entry--transition-clone.is-visible {
  opacity: 1;
}

.cooperation-detail-close {
  position: fixed;
  z-index: 3;
  top: calc(var(--cooperation-header-height) + 22px);
  right: 24px;
  display: inline-flex;
  min-width: 44px;
  min-height: 44px;
  padding: 8px 14px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid #0b0b0b;
  background: #0b0b0b;
  color: #fff;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.cooperation-detail-close:hover,
.cooperation-detail-close:focus-visible {
  outline: 0;
  background: #fff;
  color: #0b0b0b;
}

.cooperation-detail-shell[data-active-intent="student_project"] .cooperation-detail-close,
.cooperation-detail-shell[data-active-intent="consulting_review"] .cooperation-detail-close {
  border-color: #fff;
  background: #fff;
  color: #0b0b0b;
}

.cooperation-detail-shell[data-active-intent="student_project"] .cooperation-detail-close:hover,
.cooperation-detail-shell[data-active-intent="student_project"] .cooperation-detail-close:focus-visible,
.cooperation-detail-shell[data-active-intent="consulting_review"] .cooperation-detail-close:hover,
.cooperation-detail-shell[data-active-intent="consulting_review"] .cooperation-detail-close:focus-visible {
  background: #0b0b0b;
  color: #fff;
}

.cooperation-detail-close:focus-visible {
  box-shadow: 0 0 0 3px var(--cooperation-blue);
}

.cooperation-detail-close span[aria-hidden="true"] {
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
}

.cooperation-detail {
  --detail-background: #0b0b0b;
  --detail-foreground: #fff;
  --detail-muted: #b9bec5;
  --detail-line: rgb(255 255 255 / 22%);
  min-height: 100%;
  padding: clamp(40px, 4vw, 64px);
  padding-top: clamp(72px, 6vw, 92px);
  background: var(--detail-background);
  color: var(--detail-foreground);
}

.cooperation-detail[data-intent-detail="engineering_project"] {
  --detail-background: #fff;
  --detail-foreground: #0b0b0b;
  --detail-muted: #59616a;
  --detail-line: #d7d7d7;
}

.cooperation-detail__layout {
  width: min(1320px, 100%);
  min-height: calc(100dvh - var(--cooperation-header-height) - clamp(112px, 10vw, 156px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 320px);
  grid-template-rows: minmax(0, 1fr) auto;
  gap: clamp(30px, 4vw, 52px) clamp(44px, 7vw, 108px);
}

.cooperation-detail-close,
.cooperation-detail__layout {
  opacity: 1;
  transition: opacity 220ms ease;
}

.cooperation-detail-shell.is-content-hidden .cooperation-detail-close,
.cooperation-detail-shell.is-content-hidden .cooperation-detail__layout {
  pointer-events: none;
  opacity: 0;
}

.cooperation-detail-shell.is-opening .cooperation-detail-close,
.cooperation-detail-shell.is-opening .cooperation-detail__layout {
  transition-duration: 260ms;
}

.cooperation-detail-shell.is-returning .cooperation-detail-close,
.cooperation-detail-shell.is-returning .cooperation-detail__layout {
  transition-duration: 95ms;
}

.cooperation-detail__intro {
  align-self: center;
}

.cooperation-detail__eyebrow {
  margin: 0 0 16px;
  color: var(--detail-muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.cooperation-detail__intro h2 {
  margin: 0;
  font-size: clamp(58px, 7vw, 104px);
  font-weight: 500;
  line-height: 0.96;
  letter-spacing: -0.065em;
}

.cooperation-detail__lead {
  max-width: 700px;
  margin: 24px 0 0;
  color: var(--detail-muted);
  font-size: clamp(16px, 1.35vw, 19px);
  line-height: 1.75;
}

.cooperation-detail__student-note {
  max-width: 700px;
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--detail-foreground);
  color: var(--detail-muted);
  font-size: 12px;
  line-height: 1.7;
}

.cooperation-contact {
  grid-column: 2;
  grid-row: 1;
  align-self: center;
  justify-self: end;
  display: flex;
  align-items: stretch;
  gap: 12px;
}

.cooperation-contact__qr {
  width: clamp(220px, 16vw, 250px);
  padding: 4px;
  border: 1px solid #d7d7d7;
  background: #fff;
}

.cooperation-contact__qr img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.cooperation-contact__note {
  width: 46px;
  margin: 0;
  display: flex;
  flex-direction: column;
  border: 1px solid #fff;
  border-radius: 0;
  background: #0b0b0b;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.1em;
}

.cooperation-contact__note span {
  display: flex;
  align-items: center;
  justify-content: center;
  writing-mode: vertical-rl;
  text-orientation: upright;
}

.cooperation-contact__note-label {
  flex: 5;
  min-height: 0;
  padding: 10px 8px;
  background: #fff;
  color: #0b0b0b;
}

.cooperation-contact__note-value {
  flex: 4;
  min-height: 0;
  padding: 14px 8px;
  background: #0b0b0b;
  color: #fff;
}

.cooperation-detail[data-intent-detail="engineering_project"] .cooperation-contact__note {
  border-color: #0b0b0b;
  background: #fff;
}

.cooperation-detail[data-intent-detail="engineering_project"] .cooperation-contact__note-label {
  background: #0b0b0b;
  color: #fff;
}

.cooperation-detail[data-intent-detail="engineering_project"] .cooperation-contact__note-value {
  background: #fff;
  color: #0b0b0b;
}

.cooperation-detail__process {
  grid-column: 1 / -1;
  align-self: end;
  padding-top: clamp(24px, 3vw, 36px);
  border-top: 1px solid var(--detail-line);
}

.cooperation-detail__process ol {
  display: grid;
  margin: 0;
  padding: 0;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  list-style: none;
}

.cooperation-detail__process li {
  display: grid;
  min-width: 0;
  padding-right: clamp(24px, 3vw, 42px);
  grid-template-columns: clamp(42px, 4vw, 58px) minmax(0, 1fr);
  gap: 7px 16px;
  border-right: 1px solid var(--detail-line);
}

.cooperation-detail__process li + li {
  padding-left: clamp(24px, 3vw, 42px);
}

.cooperation-detail__process li:last-child {
  border-right: 0;
}

.cooperation-detail__process li > span {
  grid-row: 1 / 3;
  color: var(--detail-foreground);
  font-size: clamp(28px, 2.5vw, 36px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.04em;
}

.cooperation-detail__process strong {
  font-size: clamp(18px, 1.55vw, 22px);
  line-height: 1.2;
}

.cooperation-detail__process small {
  color: var(--detail-muted);
  font-size: clamp(14px, 1vw, 16px);
  line-height: 1.62;
}

@media (max-width: 980px) {
  .cooperation-detail {
    padding: 70px 30px 34px;
  }

  .cooperation-detail__layout {
    min-height: calc(100dvh - var(--cooperation-header-height) - 104px);
    grid-template-columns: minmax(0, 1fr) minmax(250px, 290px);
    grid-template-rows: minmax(0, 1fr) auto;
    gap: 28px 32px;
  }

  .cooperation-detail__intro h2 {
    font-size: clamp(54px, 7.5vw, 68px);
  }

  .cooperation-detail__lead {
    margin-top: 18px;
    font-size: 15px;
    line-height: 1.68;
  }

  .cooperation-detail__student-note {
    margin-top: 14px;
  }

  .cooperation-contact__qr {
    width: clamp(200px, 28vw, 230px);
  }

  .cooperation-detail__process li {
    padding-right: 16px;
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 6px 10px;
  }

  .cooperation-detail__process li + li {
    padding-left: 16px;
  }

  .cooperation-detail__process small {
    font-size: 13px;
  }
}

@media (max-width: 767px) {
  .cooperation-immersive-page {
    --cooperation-header-height: 69px;
  }

  .cooperation-portal__grid {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: repeat(2, minmax(180px, 1fr));
  }

  .cooperation-entry {
    min-height: 0;
    padding: 20px 24px;
    gap: 12px;
    border-right: 0;
    border-bottom: 1px solid var(--entry-line);
  }

  .cooperation-entry:last-child {
    border-bottom: 0;
  }

  .cooperation-entry__top,
  .cooperation-entry__bottom {
    gap: 16px;
  }

  .cooperation-entry__body {
    margin-block: 0;
  }

  .cooperation-entry__title {
    font-size: clamp(30px, 10vw, 42px);
    line-height: 1;
  }

  .cooperation-entry__summary {
    max-width: none;
    margin-top: 8px;
    font-size: 12px;
    line-height: 1.55;
  }

  .cooperation-entry__action,
  .cooperation-entry__number,
  .cooperation-entry__kind {
    font-size: 10px;
  }

  .cooperation-entry__arrow {
    font-size: 19px;
  }

  .cooperation-detail-close {
    top: calc(var(--cooperation-header-height) + 12px);
    right: 12px;
  }

  .cooperation-detail {
    padding: 76px 20px 28px;
  }

  .cooperation-detail__layout {
    min-height: auto;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto auto;
    gap: 30px;
  }

  .cooperation-detail__eyebrow {
    margin-bottom: 12px;
  }

  .cooperation-detail__intro h2 {
    font-size: clamp(46px, 16vw, 68px);
  }

  .cooperation-detail__lead {
    margin-top: 18px;
    font-size: 15px;
    line-height: 1.75;
  }

  .cooperation-contact {
    grid-column: 1;
    grid-row: 2;
    justify-self: center;
  }

  .cooperation-contact__qr {
    width: clamp(180px, 58vw, 220px);
  }

  .cooperation-detail__process {
    grid-column: 1;
    grid-row: 3;
    padding-top: 22px;
  }

  .cooperation-detail__process ol {
    grid-template-columns: minmax(0, 1fr);
  }

  .cooperation-detail__process li,
  .cooperation-detail__process li + li {
    padding: 18px 0;
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 7px 14px;
    border-right: 0;
    border-bottom: 1px solid var(--detail-line);
  }

  .cooperation-detail__process li:first-child {
    padding-top: 0;
  }

  .cooperation-detail__process li:last-child {
    padding-bottom: 0;
    border-bottom: 0;
  }

  .cooperation-detail__process li > span {
    font-size: 30px;
  }

  .cooperation-detail__process strong {
    font-size: 19px;
  }

  .cooperation-detail__process small {
    font-size: 14px;
  }
}

@media (max-width: 360px) {
  .cooperation-entry {
    padding-inline: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cooperation-entry,
  .cooperation-entry::before,
  .cooperation-entry__arrow,
  .cooperation-portal .cooperation-entry > .cooperation-entry__top,
  .cooperation-portal .cooperation-entry > .cooperation-entry__body,
  .cooperation-portal .cooperation-entry > .cooperation-entry__bottom,
  .cooperation-entry--transition-clone,
  .cooperation-detail-shell__surface,
  .cooperation-detail-close,
  .cooperation-detail__layout {
    transition: none;
  }
}