.page-contact {
  --co-line: var(--sk-line);
  --co-gap: clamp(20px, 3.4vw, 44px);
  color: var(--sk-white);
}

.page-contact .co-crumb {
  padding-block: 18px 0;
}

.page-contact .co-crumb a {
  color: var(--sk-dust);
  text-decoration: none;
  transition: color .18s var(--sk-ease);
}

.page-contact .co-crumb a:hover,
.page-contact .co-crumb a:focus-visible {
  color: var(--sk-cyan);
}

.page-contact .co-open {
  padding-block: clamp(26px, 4.5vw, 58px) clamp(34px, 5.5vw, 70px);
}

.page-contact .co-open__grid {
  display: grid;
  gap: var(--co-gap);
}

.page-contact .co-open__title {
  margin: 14px 0 18px;
  font-size: clamp(30px, 5.2vw, 60px);
  line-height: 1.08;
  letter-spacing: .02em;
  max-width: 18ch;
}

.page-contact .co-open__sub {
  max-width: 54ch;
  color: var(--sk-white);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
}

.page-contact .co-open__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-contact .co-open__fig {
  margin: 0;
  border: 2px solid var(--co-line);
  box-shadow: var(--sk-shadow);
  background: var(--sk-night);
  overflow: hidden;
}

.page-contact .co-open__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-contact .co-body {
  border-top: 2px solid var(--co-line);
  padding-block: clamp(32px, 5vw, 64px);
}

.page-contact .co-body__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-contact .co-desk {
  border: 2px solid var(--sk-lime);
  border-top-width: 6px;
  background: var(--sk-card);
  box-shadow: 10px 10px 0 0 rgba(182, 255, 60, .16);
  padding: clamp(20px, 3vw, 30px);
}

.page-contact .co-desk__label {
  color: var(--sk-lime);
}

.page-contact .co-desk__title {
  margin: 10px 0 20px;
  font-size: clamp(20px, 2.8vw, 26px);
  line-height: 1.3;
  letter-spacing: .02em;
}

.page-contact .co-desk__row + .co-desk__row {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed rgba(138, 153, 181, .45);
}

.page-contact .co-desk__key {
  margin: 0;
  font-family: var(--sk-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--sk-dust);
}

.page-contact .co-desk__mail {
  margin: 8px 0 8px;
  font-family: var(--sk-font-mono);
  font-size: clamp(16px, 3.4vw, 21px);
  line-height: 1.4;
  letter-spacing: -.01em;
  color: var(--sk-lime);
  word-break: break-all;
}

.page-contact .co-desk__val {
  margin: 8px 0 0;
  font-family: var(--sk-font-mono);
  font-size: 16px;
  line-height: 1.6;
  color: var(--sk-white);
  word-break: break-word;
}

.page-contact .co-desk__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--sk-dust);
}

.page-contact .co-main {
  min-width: 0;
}

.page-contact .co-chapter + .co-chapter {
  margin-top: clamp(38px, 5.5vw, 68px);
}

.page-contact .co-chapter__head {
  margin-bottom: 20px;
}

.page-contact .co-chapter .sk-h2 {
  margin: 8px 0 0;
  font-size: clamp(21px, 3.2vw, 32px);
  line-height: 1.28;
  letter-spacing: .02em;
}

.page-contact .co-chapter__intro {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--sk-dust);
}

.page-contact .co-topics {
  border-top: 2px solid var(--co-line);
}

.page-contact .co-topic {
  border-bottom: 2px solid var(--co-line);
}

.page-contact .co-topic > summary {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 26px;
  gap: 12px;
  align-items: start;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

.page-contact .co-topic > summary::-webkit-details-marker {
  display: none;
}

.page-contact .co-topic > summary:focus-visible {
  outline: 2px solid var(--sk-cyan);
  outline-offset: 2px;
}

.page-contact .co-topic__num {
  padding-top: 5px;
  font-family: var(--sk-font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--sk-cyan);
}

.page-contact .co-topic__title {
  margin: 0;
  font-size: clamp(17px, 2.4vw, 23px);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: .02em;
}

.page-contact .co-topic__for {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: 0;
  color: var(--sk-dust);
}

.page-contact .co-topic__sign {
  justify-self: end;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 2px solid var(--co-line);
  color: var(--sk-cyan);
  transition: border-color .18s var(--sk-ease), background .18s var(--sk-ease);
}

.page-contact .co-topic__sign::before {
  content: "+";
  font-family: var(--sk-font-mono);
  font-size: 16px;
  line-height: 1;
}

.page-contact .co-topic[open] .co-topic__sign {
  border-color: var(--sk-cyan);
  background: rgba(95, 224, 230, .12);
}

.page-contact .co-topic[open] .co-topic__sign::before {
  content: "−";
}

.page-contact .co-topic__body {
  padding: 0 0 22px 46px;
}

.page-contact .co-topic__body p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--sk-dust);
}

.page-contact .co-topic__body p:last-child {
  margin-bottom: 0;
}

.page-contact .co-topic__body strong {
  color: var(--sk-white);
}

.page-contact .co-flowmap {
  margin: 0 0 28px;
  border: 2px solid var(--co-line);
  background: var(--sk-night);
  overflow: hidden;
}

.page-contact .co-flowmap img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 5;
  object-fit: cover;
}

.page-contact .co-flowmap figcaption {
  padding: 10px 14px;
  border-top: 2px solid var(--co-line);
  font-family: var(--sk-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--sk-dust);
}

.page-contact .co-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .co-step {
  position: relative;
  padding: 0 0 30px 58px;
}

.page-contact .co-step::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 44px;
  bottom: -2px;
  border-left: 2px dashed rgba(31, 44, 69, .95);
}

.page-contact .co-step:last-child {
  padding-bottom: 0;
}

.page-contact .co-step:last-child::before {
  display: none;
}

.page-contact .co-step__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 2px solid var(--sk-cyan);
  background: var(--sk-void);
  font-family: var(--sk-font-mono);
  font-size: 13px;
  color: var(--sk-cyan);
}

.page-contact .co-step__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .02em;
  line-height: 1.4;
}

.page-contact .co-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--sk-dust);
}

.page-contact .co-step__out {
  display: block;
  margin-top: 10px;
  padding-left: 10px;
  border-left: 2px solid var(--co-line);
  font-family: var(--sk-font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--sk-dust);
  transition: color .18s var(--sk-ease), border-color .18s var(--sk-ease), opacity .18s var(--sk-ease);
}

.page-contact .co-kit {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .co-kit li {
  border: 2px solid var(--co-line);
  background: var(--sk-night);
  padding: 15px 17px;
}

.page-contact .co-kit b {
  display: block;
  margin-bottom: 6px;
  font-size: 15px;
  letter-spacing: .02em;
}

.page-contact .co-kit span {
  display: block;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--sk-dust);
}

.page-contact .co-kit__more {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--sk-dust);
}

.page-contact .co-kit__more a,
.page-contact .co-member__text a {
  color: var(--sk-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(95, 224, 230, .5);
  transition: border-color .18s var(--sk-ease);
}

.page-contact .co-kit__more a:hover,
.page-contact .co-member__text a:hover {
  border-bottom-color: var(--sk-cyan);
}

.page-contact .co-member {
  display: grid;
  gap: 18px;
  border: 2px solid var(--co-line);
  background: var(--sk-night);
  padding: clamp(20px, 3vw, 30px);
}

.page-contact .co-member__text p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--sk-dust);
}

.page-contact .co-member__act {
  margin: 0;
}

.page-contact .co-orbit {
  margin-top: clamp(40px, 6vw, 76px);
  height: 2px;
  background-image:
    radial-gradient(circle at 12% 50%, var(--sk-cyan) 0 1.5px, transparent 2px),
    radial-gradient(circle at 46% 50%, rgba(95, 224, 230, .7) 0 1px, transparent 1.6px),
    radial-gradient(circle at 78% 50%, rgba(255, 122, 47, .8) 0 1.5px, transparent 2px),
    linear-gradient(90deg, transparent, rgba(95, 224, 230, .65) 22%, rgba(95, 224, 230, .18) 52%, rgba(95, 224, 230, .65) 80%, transparent);
  background-repeat: no-repeat;
  background-size: 100% 100%;
  opacity: .8;
}

@media (min-width: 640px) {
  .page-contact .co-kit {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .page-contact .co-open__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-contact .co-open__fig {
    margin-bottom: 4px;
  }
}

@media (min-width: 980px) {
  .page-contact .co-body__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .co-desk {
    position: sticky;
    top: 96px;
  }

  .page-contact .co-member {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (max-width: 640px) {
  .page-contact .co-topic > summary {
    grid-template-columns: 30px minmax(0, 1fr) 26px;
    gap: 10px;
  }

  .page-contact .co-topic__body {
    padding-left: 0;
  }

  .page-contact .co-step {
    padding-left: 52px;
  }
}

@media (hover: hover) and (min-width: 768px) {
  .page-contact .co-step__out {
    opacity: .45;
  }

  .page-contact .co-step:hover .co-step__out {
    opacity: 1;
    color: var(--sk-cyan);
    border-color: var(--sk-cyan);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-step__out,
  .page-contact .co-topic__sign,
  .page-contact .co-crumb a {
    transition: none;
  }
}
<<<END>>>