.page-contact {
  --c-hero-top: clamp(28px, 6vw, 64px);
  --c-hero-bottom: clamp(44px, 8vw, 88px);
  --c-gap: clamp(28px, 4.5vw, 56px);
  --c-panel: rgba(255, 255, 255, 0.08);
  --c-panel-strong: rgba(255, 255, 255, 0.15);
  --c-hair: rgba(243, 237, 228, 0.22);
  --c-lime-veil: rgba(198, 242, 78, 0.16);
  --c-ink-soft: rgba(27, 31, 30, 0.72);
}

/* ---------- hero ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(115% 85% at 86% 10%, rgba(178, 58, 46, 0.62), transparent 60%),
    linear-gradient(180deg, #0E3B3E 0%, #0B3134 62%, #0A2C2F 100%);
  color: var(--paper);
  padding: calc(var(--header-h) + var(--c-hero-top)) 0 var(--c-hero-bottom);
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 70% 40%;
  opacity: 0.24;
  filter: grayscale(0.25) contrast(1.08);
}

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

.page-contact .breadcrumbs ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-contact .breadcrumbs__item {
  color: rgba(243, 237, 228, 0.62);
}

.page-contact .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 10px;
  color: rgba(243, 237, 228, 0.35);
}

.page-contact .breadcrumbs a {
  color: rgba(243, 237, 228, 0.78);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

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

.page-contact .contact-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-contact .contact-hero__title {
  margin: 0;
  font-size: clamp(32px, 6.6vw, 60px);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: -0.01em;
  max-width: 18em;
}

.page-contact .contact-hero__title em {
  font-style: normal;
  color: var(--lime);
}

.page-contact .contact-hero__lede {
  margin: 22px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: rgba(243, 237, 228, 0.84);
}

.page-contact .contact-hero__quick {
  display: grid;
  gap: 0;
  margin: 38px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--c-hair);
}

.page-contact .contact-hero__quick li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(243, 237, 228, 0.12);
  font-size: 14px;
  color: rgba(243, 237, 228, 0.86);
}

.page-contact .contact-hero__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(243, 237, 228, 0.5);
}

.page-contact .contact-mono {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
}

/* ---------- .page-contact grid ---------- */
.page-contact .contact-body {
  position: relative;
  padding-bottom: clamp(72px, 11vw, 132px);
}

.page-contact .contact-body::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: clamp(28px, 4vw, 64px);
  background: var(--paper);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  pointer-events: none;
}

.page-contact .contact-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--c-gap);
  align-items: start;
}

/* ---------- sticky glass card ---------- */
.page-contact .contact-card {
  position: relative;
  padding: 24px 22px 22px;
  border: 1px solid var(--c-hair);
  border-radius: var(--radius);
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.16) 0%, rgba(255, 255, 255, 0.05) 52%, rgba(198, 242, 78, 0.07) 100%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 20px 44px rgba(0, 0, 0, 0.32);
  color: var(--paper);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 3px;
  background: linear-gradient(180deg, var(--lime), var(--laterite));
  border-radius: 2px;
}

.page-contact .contact-card__tag {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: rgba(243, 237, 228, 0.5);
}

.page-contact .contact-card__title {
  margin: 0 0 18px;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-contact .contact-card__list {
  margin: 0;
  padding: 0;
}

.page-contact .contact-card__row {
  padding: 12px 0;
  border-top: 1px solid rgba(243, 237, 228, 0.14);
}

.page-contact .contact-card__row dt {
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(243, 237, 228, 0.52);
}

.page-contact .contact-card__row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(243, 237, 228, 0.92);
}

.page-contact .contact-card__row .contact-mono {
  color: var(--lime);
}

.page-contact .contact-card__note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px dashed rgba(243, 237, 228, 0.2);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(243, 237, 228, 0.7);
}

/* ---------- channels ---------- */
.page-contact .contact-channels {
  display: grid;
  gap: clamp(34px, 4vw, 52px);
}

.page-contact .contact-channels .chapter {
  padding-top: clamp(20px, 3vw, 32px);
  border-top: 1px solid var(--c-hair);
}

.page-contact .chapter__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(42px, 8vw, 68px);
  line-height: 0.88;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--lime);
}

.page-contact .chapter__title {
  margin: 10px 0 6px;
  font-size: clamp(21px, 3vw, 29px);
  line-height: 1.28;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .chapter__sub {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(243, 237, 228, 0.66);
}

.page-contact .contact-channels .prose p {
  margin: 0 0 14px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(243, 237, 228, 0.86);
}

.page-contact .contact-channels .prose a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 242, 78, 0.4);
}

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

/* ---------- filter bar ---------- */
.page-contact .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 22px 0 18px;
}

.page-contact .tag {
  padding: 7px 13px;
  border: 1px solid var(--c-hair);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(243, 237, 228, 0.88);
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.4;
  cursor: pointer;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease), transform 160ms var(--ease);
}

.page-contact .tag:hover {
  border-color: var(--lime);
  color: var(--lime);
  transform: translateY(-1px);
}

.page-contact .tag:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 2px;
}

.page-contact .tag[aria-pressed="true"],
.page-contact .tag.is-active {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

.page-contact .filter-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--lime);
}

.page-contact .contact-tips {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-tips__item {
  padding: 14px 16px;
  border-left: 2px solid var(--laterite);
  background: var(--c-panel);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.page-contact .contact-tips__item[hidden] {
  display: none;
}

.page-contact .contact-tips__k {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-contact .contact-tips__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(243, 237, 228, 0.82);
}

/* ---------- facts dl ---------- */
.page-contact .contact-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 22px 0 0;
  background: rgba(243, 237, 228, 0.14);
  border: 1px solid var(--c-hair);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .contact-facts > div {
  padding: 14px 16px;
  background: #0E3B3E;
}

.page-contact .contact-facts dt {
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(198, 242, 78, 0.86);
}

.page-contact .contact-facts dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(243, 237, 228, 0.88);
}

/* ---------- fix section (paper) ---------- */
.page-contact .contact-fix {
  padding-top: clamp(40px, 7vw, 84px);
}

.page-contact .contact-fix .chapter + .chapter {
  margin-top: clamp(44px, 6vw, 76px);
}

.page-contact .contact-fix .chapter__num {
  color: var(--laterite);
}

.page-contact .chapter--dark .chapter__title {
  color: var(--ink);
}

.page-contact .chapter--dark .chapter__sub {
  color: var(--c-ink-soft);
}

.page-contact .contact-fix__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-contact .chapter--dark .prose p {
  margin: 0 0 14px;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(27, 31, 30, 0.86);
}

.page-contact .contact-fix__copy .collapse {
  margin-top: 24px;
  border-top: 1px solid var(--line-dark);
}

.page-contact .contact-fix__item {
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .contact-fix__item h3 {
  margin: 0;
}

.page-contact .collapse__trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 14px 0;
  border: 0;
  background: none;
  text-align: left;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
}

.page-contact .collapse__trigger:hover {
  color: var(--laterite);
}

.page-contact .collapse__trigger:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 2px;
}

.page-contact .collapse__idx {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--laterite);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-contact .collapse__panel {
  padding: 0 0 16px 38px;
}

.page-contact .collapse__panel p {
  margin: 0;
  max-width: 38em;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-ink-soft);
}

.page-contact .collapse__tools {
  margin: 18px 0 0;
}

.page-contact .contact-fix__media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .contact-fix__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(1.06) contrast(1.04);
}

.page-contact .contact-fix__media .media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--archive);
}

/* ---------- partner ---------- */
.page-contact .contact-partner__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .contact-partner__list li {
  padding: 18px;
  background: var(--paper);
}

.page-contact .contact-partner__list h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.page-contact .contact-partner__list h3::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 2px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--lime);
}

.page-contact .contact-partner__list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--c-ink-soft);
}

/* ---------- related links ---------- */
.page-contact .contact-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: clamp(44px, 6vw, 76px);
}

.page-contact .contact-links__item {
  display: block;
  padding: 18px 18px 20px;
  border: 1px solid var(--line-dark);
  border-left: 3px solid var(--laterite);
  border-radius: var(--radius);
  background: rgba(14, 59, 62, 0.04);
  text-decoration: none;
  transition: background 180ms var(--ease), border-left-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-contact .contact-links__item:hover {
  background: rgba(14, 59, 62, 0.09);
  border-left-color: var(--violet);
  transform: translateY(-2px);
}

.page-contact .contact-links__k {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--archive);
}

.page-contact .contact-links__t {
  display: block;
  margin-bottom: 6px;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}

.page-contact .contact-links__d {
  display: block;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-ink-soft);
}

/* ---------- responsive ---------- */
@media (min-width: 640px) {
  .page-contact .contact-hero__quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 clamp(16px, 3vw, 36px);
  }

  .page-contact .contact-tips {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

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

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

  .page-contact .contact-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-contact .chapter__head {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: clamp(16px, 3vw, 34px);
    align-items: baseline;
  }

  .page-contact .chapter__num {
    grid-column: 1;
    grid-row: 1 / span 2;
  }

  .page-contact .chapter__title {
    grid-column: 2;
    grid-row: 1;
    margin-top: 0;
  }

  .page-contact .chapter__sub {
    grid-column: 2;
    grid-row: 2;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-body__grid {
    grid-template-columns: minmax(280px, 336px) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-contact .contact-card {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-contact .contact-fix__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }

  .page-contact .contact-links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-hero__title {
    max-width: 16em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .tag,
  .page-contact .contact-links__item {
    transition: none;
    transform: none;
  }
}