.page-contact {
  --c-cut: 14px;
  --c-gap: clamp(16px, 2.2vw, 26px);
  --c-pad: clamp(20px, 2.8vw, 34px);
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-sans);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-contact .contact-shell {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-contact a {
  color: var(--cyan-mist);
  text-decoration: none;
  border-bottom: 1px solid rgba(124, 243, 255, 0.35);
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-contact a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact summary:focus-visible,
.page-contact input:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ---------- buttons ---------- */
.page-contact .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
  text-decoration: none;
  border: 1px solid transparent;
  border-bottom-width: 1px;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  transition: transform 180ms var(--ease), background-color 180ms var(--ease), color 180ms var(--ease);
}

.page-contact .btn--solid {
  background: var(--orange);
  color: var(--ink-deep);
  border-color: var(--orange);
}

.page-contact .btn--solid:hover {
  background: var(--orange-sand);
  border-color: var(--orange-sand);
  color: var(--ink-deep);
  transform: translateY(-2px);
}

.page-contact .btn--line {
  background: transparent;
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .btn--line:hover {
  background: rgba(0, 229, 255, 0.12);
  color: var(--cyan-mist);
  border-color: var(--cyan-mist);
  transform: translateY(-2px);
}

/* ---------- hero ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(28px, 5vw, 56px) clamp(36px, 6vw, 80px);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(0, 229, 255, 0.14) 0%, rgba(6, 21, 48, 0) 58%),
    linear-gradient(158deg, var(--ink) 0%, var(--ink-deep) 100%);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-contact .contact-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(20px, 3vw, 32px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .contact-crumbs a {
  color: var(--muted);
  border-bottom-color: transparent;
}

.page-contact .contact-crumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .contact-crumbs span[aria-current] {
  color: var(--orange);
}

.page-contact h1 {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-size: clamp(34px, 7.4vw, 76px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  max-width: 42ch;
  margin: 0 0 clamp(22px, 3vw, 34px);
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--muted);
}

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

.page-contact .contact-hero__visual {
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
}

.page-contact .contact-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 5;
  object-fit: cover;
}

/* ---------- section heads ---------- */
.page-contact .contact-head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.4vw, 42px);
}

.page-contact .contact-head h2 {
  margin: 0 0 12px;
  font-size: clamp(25px, 4.2vw, 40px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.01em;
}

.page-contact .contact-head__lead {
  margin: 0;
  color: var(--muted);
  font-size: clamp(14px, 1.5vw, 16px);
}

/* ---------- contact cards ---------- */
.page-contact .contact-cards {
  padding-block: clamp(48px, 7vw, 96px);
}

.page-contact .contact-cards__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--c-gap);
}

.page-contact .contact-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: var(--c-pad);
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--c-cut)) 0, 100% var(--c-cut), 100% 100%, var(--c-cut) 100%, 0 calc(100% - var(--c-cut)));
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-contact .contact-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  background: #16305f;
}

.page-contact .contact-card--mail {
  border-left: 4px solid var(--cyan);
}

.page-contact .contact-card--phone {
  border-left: 4px solid var(--orange);
}

.page-contact .contact-card .tag {
  align-self: flex-start;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange-sand);
  border: 1px solid var(--orange-sand);
  background: rgba(255, 107, 53, 0.1);
}

.page-contact .contact-card .tag--cyan {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(0, 229, 255, 0.12);
}

.page-contact .contact-card h3 {
  margin: 0;
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-contact .contact-card__value {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-block: 12px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--white);
}

.page-contact .contact-card__value--mail .mono {
  font-size: clamp(15px, 2.6vw, 22px);
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .contact-card__value--phone .mono {
  font-size: clamp(24px, 5.6vw, 32px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--white);
}

.page-contact .contact-card__value--addr span {
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.6;
  color: var(--white);
}

.page-contact .copy-btn {
  flex: none;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-mist);
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-contact .copy-btn:hover {
  color: var(--ink-deep);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .copy-btn[data-copied="true"] {
  color: var(--ink-deep);
  background: var(--orange-sand);
  border-color: var(--orange-sand);
}

.page-contact .contact-card__meta {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-contact .contact-card__meta div {
  display: grid;
  gap: 2px;
}

.page-contact .contact-card__meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .contact-card__meta dd {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

/* ---------- routes ---------- */
.page-contact .contact-routes {
  padding-block: clamp(48px, 7vw, 96px);
  background: var(--ink-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.page-contact .route-item {
  border-bottom: 1px solid var(--line);
  background: transparent;
  transition: background-color 180ms var(--ease);
}

.page-contact .route-item:hover {
  background: rgba(18, 42, 87, 0.75);
}

.page-contact .route-item summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 8px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 600;
  color: var(--white);
  transition: color 180ms var(--ease);
}

.page-contact .route-item summary::-webkit-details-marker {
  display: none;
}

.page-contact .route-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
  transition: transform 180ms var(--ease), color 180ms var(--ease);
}

.page-contact .route-item[open] summary::after {
  content: "–";
  color: var(--orange);
}

.page-contact .route-item summary:hover {
  color: var(--cyan-mist);
}

.page-contact .route-item__num {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  padding-top: 4px;
}

.page-contact .route-item__title {
  flex: 1;
}

.page-contact .route-item__body {
  padding: 0 8px 20px 46px;
  border-left: 1px solid var(--line);
  margin-left: 14px;
}

.page-contact .route-item__body p {
  margin: 0 0 10px;
  font-size: 14px;
  color: var(--muted);
}

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

.page-contact .contact-flow {
  margin: clamp(24px, 3.4vw, 40px) 0 0;
}

.page-contact .contact-flow img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
}

.page-contact .contact-flow .figure__cap {
  margin: 10px 0 0;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--dim);
}

/* ---------- mail guide ---------- */
.page-contact .contact-mail {
  padding: var(--c-pad);
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
  clip-path: polygon(0 0, calc(100% - var(--c-cut)) 0, 100% var(--c-cut), 100% 100%, var(--c-cut) 100%, 0 calc(100% - var(--c-cut)));
}

.page-contact .contact-mail h3 {
  margin: 0 0 18px;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 800;
  line-height: 1.3;
}

.page-contact .mail-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-contact .mail-list__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 8px;
  font-size: 14px;
  color: var(--white);
  cursor: pointer;
  border-bottom: 1px dashed var(--line);
  transition: background-color 180ms var(--ease);
}

.page-contact .mail-list__item:hover {
  background: rgba(0, 229, 255, 0.07);
}

.page-contact .mail-list__item input {
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  accent-color: var(--cyan);
  cursor: pointer;
}

.page-contact .mail-list__item input:checked + span {
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-color: var(--cyan);
}

.page-contact .contact-mail__note {
  margin: 16px 0 0;
  font-size: 13px;
  color: var(--orange-sand);
}

/* ---------- SLA ---------- */
.page-contact .contact-sla {
  padding-block: clamp(48px, 7vw, 96px);
}

.page-contact .contact-sla__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--c-gap);
}

.page-contact .sla-item {
  padding: var(--c-pad);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(18, 42, 87, 0.7) 0%, rgba(10, 31, 68, 0) 100%);
}

.page-contact .sla-item--accent {
  border-top: 3px solid var(--orange);
}

.page-contact .sla-item__num {
  margin: 0 0 6px;
  font-size: clamp(22px, 3.4vw, 30px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--cyan);
}

.page-contact .sla-item--accent .sla-item__num {
  color: var(--orange);
}

.page-contact .sla-item h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
}

.page-contact .sla-item p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.page-contact .contact-sla__foot {
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  font-size: 14px;
  color: var(--muted);
}

/* ---------- visit ---------- */
.page-contact .contact-visit {
  padding-block: clamp(44px, 6vw, 88px);
  border-top: 1px solid var(--line);
  background: var(--ink-deep);
}

.page-contact .contact-visit__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-contact .contact-visit h2 {
  margin: 0 0 16px;
  font-size: clamp(24px, 3.8vw, 36px);
  font-weight: 900;
  line-height: 1.2;
}

.page-contact .contact-visit__addr {
  margin: 0 0 14px;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--cyan);
  border-left: 3px solid var(--orange);
  background: rgba(18, 42, 87, 0.8);
}

.page-contact .contact-visit__block p:not(.contact-visit__addr):not(.eyebrow) {
  margin: 0 0 12px;
  font-size: 14px;
  color: var(--muted);
}

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

.page-contact .contact-visit__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--line);
  clip-path: polygon(24px 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%, 0 24px);
}

.page-contact .contact-visit__cap {
  margin: 12px 0 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--dim);
}

/* ---------- closing CTA ---------- */
.page-contact .contact-cta {
  padding-block: clamp(44px, 6vw, 84px);
  background:
    radial-gradient(90% 120% at 0% 100%, rgba(255, 107, 53, 0.16) 0%, rgba(10, 31, 68, 0) 60%),
    var(--ink);
  border-top: 1px solid var(--line);
}

.page-contact .contact-cta__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: center;
}

.page-contact .contact-cta h2 {
  margin: 0 0 10px;
  font-size: clamp(22px, 3.4vw, 32px);
  font-weight: 900;
  line-height: 1.22;
}

.page-contact .contact-cta p {
  margin: 0;
  max-width: 52ch;
  font-size: 14px;
  color: var(--muted);
}

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

/* ---------- responsive ---------- */
@media (min-width: 640px) {
  .page-contact .contact-cards__grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-contact .contact-card--mail {
    grid-column: span 6;
  }

  .page-contact .contact-card--phone,
  .page-contact .contact-card--addr {
    grid-column: span 3;
  }

  .page-contact .contact-sla__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-contact .contact-routes__grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-contact .contact-visit__grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-contact .contact-cta__inner {
    grid-template-columns: 1fr auto;
    gap: 40px;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-cards__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-contact .contact-card--mail {
    grid-column: span 6;
  }

  .page-contact .contact-card--phone,
  .page-contact .contact-card--addr {
    grid-column: span 3;
  }

  .page-contact .contact-card--addr {
    margin-top: 12px;
  }

  .page-contact .contact-card--phone {
    margin-top: -12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .btn,
  .page-contact .contact-card,
  .page-contact .copy-btn,
  .page-contact .route-item,
  .page-contact .mail-list__item,
  .page-contact a {
    transition: none;
  }

  .page-contact .btn:hover,
  .page-contact .contact-card:hover {
    transform: none;
  }
}