.page-contact {
  --edge-soft: rgba(56, 242, 160, .18);
  --card-solid: #11261E;
  --hero-veil: rgba(6, 16, 12, .88);
  background-color: var(--ink);
  background-image:
    linear-gradient(to right, rgba(42, 74, 61, .34) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(42, 74, 61, .34) 1px, transparent 1px);
  background-size: 88px 88px;
  color: var(--white);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
  margin-bottom: clamp(20px, 3vw, 36px);
}

.page-contact .breadcrumb__link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}

.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--mint);
  border-bottom-color: var(--mint);
}

.page-contact .breadcrumb__current {
  color: var(--white);
}

/* ---------- hero ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(24px, 4vw, 44px) 0 clamp(40px, 6vw, 84px);
  border-bottom: 1px solid var(--hair);
  overflow: hidden;
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-contact .contact-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .42;
  filter: saturate(.55) contrast(1.05);
}

.page-contact .contact-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 8% 20%, rgba(56, 242, 160, .16) 0%, transparent 58%),
    linear-gradient(102deg, rgba(6, 16, 12, .97) 0%, rgba(6, 16, 12, .86) 48%, rgba(6, 16, 12, .58) 100%);
}

.page-contact .contact-hero__inner {
  position: relative;
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-contact .kicker {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 14px;
}

.page-contact .kicker--mint {
  color: var(--mint);
}

.page-contact .kicker--signal {
  color: var(--orange);
}

.page-contact h1 {
  margin: 0 0 clamp(16px, 2vw, 24px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.4vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -.02em;
  transform: skewX(-3deg);
  transform-origin: left bottom;
  max-width: 18em;
}

.page-contact .contact-hero__intro {
  margin: 0 0 clamp(26px, 3.4vw, 40px);
  max-width: 40em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--line);
}

.page-contact .channel {
  padding: clamp(16px, 2.2vw, 24px);
  background: rgba(11, 26, 20, .82);
}

.page-contact .channel__label {
  display: block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--muted);
  margin-bottom: 8px;
}

.page-contact .channel__value {
  margin: 0 0 8px;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(1.25rem, 4.4vw, 2.1rem);
  line-height: 1.18;
  letter-spacing: -.01em;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel__value--mail {
  color: var(--mint);
}

.page-contact .channel__value--tel {
  color: var(--white);
}

.page-contact .channel__hint {
  display: block;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .contact-hero__aside {
  align-self: start;
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--glass);
  border: 1px solid var(--line);
  border-left: 2px solid var(--mint);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.page-contact .aside__big {
  margin: 0 0 12px;
  font-size: clamp(1.1rem, 2.4vw, 1.35rem);
  color: var(--white);
  letter-spacing: .02em;
}

.page-contact .aside__big strong {
  font-family: var(--font-data);
  font-weight: 700;
  color: var(--mint);
  letter-spacing: 0;
}

.page-contact .aside__text {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .aside__text:last-of-type {
  margin-bottom: 20px;
}

.page-contact .contact-hero__aside .tag--signal {
  display: inline-block;
  margin: 0 0 10px;
  padding: 4px 10px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--orange);
  background: rgba(255, 122, 26, .1);
  border: 1px solid rgba(255, 122, 26, .45);
}

.page-contact .aside__link {
  display: inline-block;
  font-size: 14px;
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--edge-soft);
  padding-bottom: 2px;
}

.page-contact .aside__link:hover,
.page-contact .aside__link:focus-visible {
  border-bottom-color: var(--mint);
}

/* ---------- rhythm ---------- */
.page-contact .contact-rhythm {
  padding: clamp(40px, 6vw, 80px) 0;
  border-bottom: 1px solid var(--hair);
}

.page-contact .section-head {
  max-width: 46em;
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-contact .section-head h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.6vw, 2.3rem);
  line-height: 1.15;
  letter-spacing: -.01em;
}

.page-contact .section-head__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .rhythm {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--hair);
  border-top: 1px solid var(--line);
}

.page-contact .rhythm__item {
  padding: clamp(18px, 2.4vw, 26px) clamp(16px, 2vw, 22px);
  background: var(--ink-soft);
  border-top: 2px solid transparent;
  transition: border-color .2s ease, background-color .2s ease;
}

.page-contact .rhythm__item:hover {
  border-top-color: var(--mint);
  background: var(--panel);
}

.page-contact .rhythm__no {
  display: block;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
  margin-bottom: 10px;
}

.page-contact .rhythm__item h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .rhythm__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- cooperation ---------- */
.page-contact .contact-coop {
  padding: clamp(40px, 6vw, 80px) 0;
  background: var(--ink-soft);
  border-bottom: 1px solid var(--hair);
}

.page-contact .coop {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

.page-contact .coop__panel {
  padding: clamp(22px, 3vw, 36px);
  background: var(--card-solid);
  border: 1px solid var(--line);
  border-top: 3px solid var(--mint);
}

.page-contact .coop__note {
  padding: clamp(22px, 3vw, 36px);
  background: rgba(24, 52, 42, .5);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.page-contact .coop h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  line-height: 1.2;
}

.page-contact .coop__text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .coop__list {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hair);
}

.page-contact .coop__list li {
  position: relative;
  padding: 11px 0 11px 20px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--white);
  border-bottom: 1px solid var(--hair);
}

.page-contact .coop__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 8px;
  height: 2px;
  background: var(--mint);
}

.page-contact .coop__link {
  display: inline-block;
  font-size: 14px;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 26, .4);
  padding-bottom: 2px;
}

.page-contact .coop__link:hover,
.page-contact .coop__link:focus-visible {
  border-bottom-color: var(--orange);
}

.page-contact .btn--solid {
  display: inline-block;
  padding: 12px 22px;
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--ink);
  background: var(--mint);
  border: 1px solid var(--mint);
  text-decoration: none;
  transition: background-color .18s ease, color .18s ease;
}

.page-contact .btn--solid:hover,
.page-contact .btn--solid:focus-visible {
  background: transparent;
  color: var(--mint);
}

/* ---------- preparation ---------- */
.page-contact .contact-prep {
  padding: clamp(40px, 6vw, 80px) 0;
  border-bottom: 1px solid var(--hair);
}

.page-contact .prep {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-contact .prep__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: prep;
}

.page-contact .prep__item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--hair);
}

.page-contact .prep__item:last-child {
  border-bottom: 1px solid var(--hair);
}

.page-contact .prep__no {
  font-family: var(--font-data);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--mint);
}

.page-contact .prep__item h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .prep__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .prep__figure {
  margin: 0;
}

.page-contact .figure__frame {
  position: relative;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-contact .figure--tall .figure__frame {
  aspect-ratio: 4 / 3;
}

.page-contact .figure__frame img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: .82;
  filter: saturate(.7);
}

.page-contact .figure__caption {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.75;
  color: var(--muted);
  border-left: 2px solid var(--line);
  padding-left: 12px;
}

/* ---------- address ---------- */
.page-contact .contact-address {
  padding: clamp(40px, 6vw, 80px) 0;
}

.page-contact .addr-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 40px);
  padding: clamp(24px, 3.6vw, 44px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--orange);
  background-image: linear-gradient(120deg, rgba(56, 242, 160, .07) 0%, transparent 55%);
}

.page-contact .addr-card__line {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 3.4vw, 2rem);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .addr-card__hint {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 30em;
}

.page-contact .addr-card__meta {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}

.page-contact .addr-card__row {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 12px;
  padding: 12px 14px;
  background: rgba(6, 16, 12, .72);
}

.page-contact .addr-card__row dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--muted);
  padding-top: 3px;
}

.page-contact .addr-card__row dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 14px;
  line-height: 1.5;
  color: var(--white);
  overflow-wrap: anywhere;
}

/* ---------- scenes ---------- */
.page-contact .contact-scenes {
  padding: 0 0 clamp(40px, 6vw, 80px);
}

.page-contact .scenes {
  border-top: 1px solid var(--line);
}

.page-contact .scene {
  border-bottom: 1px solid var(--hair);
  background: transparent;
  transition: background-color .2s ease;
}

.page-contact .scene[open] {
  background: rgba(17, 38, 30, .58);
}

.page-contact .scene__sum {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 18px 6px;
  cursor: pointer;
  list-style: none;
}

.page-contact .scene__sum::-webkit-details-marker {
  display: none;
}

.page-contact .scene__no {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-contact .scene__title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--white);
}

.page-contact .scene__sum:hover .scene__title,
.page-contact .scene__sum:focus-visible .scene__title {
  color: var(--mint);
}

.page-contact .scene__sign::after {
  content: "展开";
  display: inline-block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 4px 8px;
  white-space: nowrap;
}

.page-contact .scene[open] .scene__sign::after {
  content: "收起";
  color: var(--mint);
  border-color: var(--edge-soft);
}

.page-contact .scene__body {
  padding: 0 6px 22px 58px;
}

.page-contact .scene__body p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-contact .scene__body a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--edge-soft);
}

.page-contact .scene__body a:hover,
.page-contact .scene__body a:focus-visible {
  border-bottom-color: var(--mint);
}

/* ---------- tail ---------- */
.page-contact .contact-tail {
  padding: clamp(32px, 5vw, 60px) 0 clamp(44px, 6vw, 76px);
  background: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.page-contact .contact-tail__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 36px);
  align-items: center;
}

.page-contact .contact-tail h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.4vw, 2.1rem);
  line-height: 1.2;
  max-width: 20em;
}

.page-contact .contact-tail__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 40em;
}

.page-contact .contact-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .btn--signal {
  display: inline-block;
  padding: 12px 24px;
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--ink);
  background: var(--mint);
  border: 1px solid var(--mint);
  text-decoration: none;
  transition: transform .18s ease, background-color .18s ease;
}

.page-contact .btn--signal:hover,
.page-contact .btn--signal:focus-visible {
  background: var(--white);
  border-color: var(--white);
  transform: translateY(-1px);
}

.page-contact .btn--ghost {
  display: inline-block;
  padding: 12px 24px;
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--white);
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
  transition: color .18s ease, border-color .18s ease;
}

.page-contact .btn--ghost:hover,
.page-contact .btn--ghost:focus-visible {
  color: var(--mint);
  border-color: var(--mint);
}

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

  .page-contact .rhythm {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .addr-card__meta {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .contact-tail__inner {
    grid-template-columns: 1.2fr .8fr;
  }

  .page-contact .contact-tail__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, .82fr);
    gap: clamp(32px, 4vw, 56px);
  }

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

  .page-contact .rhythm {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact .coop {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-contact .prep {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
  }

  .page-contact .addr-card {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-contact .addr-card__meta {
    grid-template-columns: 1fr;
  }

  .page-contact .scene__body {
    padding-left: 58px;
    padding-right: clamp(24px, 8vw, 120px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .rhythm__item,
  .page-contact .btn--signal,
  .page-contact .scene {
    transition: none;
  }
}
<<<END>>>