.page-contact {
  background: var(--ink);
  color: var(--cream);
  padding-bottom: clamp(56px, 8vw, 120px);
}

.page-contact img {
  max-width: 100%;
}

.page-contact .breadcrumbs {
  margin-top: clamp(18px, 3vw, 32px);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--graphite);
}

.page-contact .breadcrumbs__item[aria-current="page"] {
  color: var(--cyan);
}

/* ---------- Hero ---------- */
.page-contact .pc-hero {
  padding: clamp(22px, 4vw, 46px) 0 clamp(30px, 5vw, 60px);
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-hero h1 {
  margin: clamp(14px, 2vw, 22px) 0 0;
  font-family: var(--sans);
  font-weight: 200;
  font-size: clamp(34px, 6.6vw, 84px);
  line-height: 1.06;
  letter-spacing: 0.01em;
  max-width: 22ch;
}

.page-contact .pc-hero__bold {
  display: block;
  font-weight: 900;
  color: var(--cyan);
}

.page-contact .pc-hero .lede {
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .pc-hero__media {
  position: relative;
  margin: clamp(24px, 4vw, 44px) 0 0;
  aspect-ratio: 2 / 1;
  border: 1px solid var(--line);
  background: var(--board);
  overflow: hidden;
}

.page-contact .pc-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.06);
}

.page-contact .pc-hero__media .media__label,
.page-contact .pc-coop-media .media__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

/* ---------- 7:3 split ---------- */
.page-contact .pc-split {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  padding-top: clamp(36px, 5vw, 68px);
}

.page-contact .pc-main .section {
  margin-top: clamp(44px, 6vw, 84px);
}

.page-contact .pc-main .section:first-child {
  margin-top: 0;
}

.page-contact .section__lead {
  max-width: 74ch;
}

.page-contact .pc-note {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--line-strong);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .pc-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

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

/* ---------- 01 channels ---------- */
.page-contact .pc-chans {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-contact .pc-chan {
  padding: clamp(18px, 2.4vw, 28px);
  border: 1px solid var(--line);
  background: var(--board);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .pc-chan:hover {
  border-color: var(--cyan);
  background: var(--board-lift);
  transform: translateY(-2px);
}

.page-contact .pc-chan__idx {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--cyan);
}

.page-contact .pc-chan__value {
  margin: 14px 0 0;
  font-family: var(--mono);
  font-size: clamp(17px, 2.2vw, 24px);
  font-weight: 700;
  color: var(--cream);
  word-break: break-all;
}

.page-contact .pc-chan__use {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 02 cases ---------- */
.page-contact .pc-cases {
  display: grid;
  gap: 1px;
  margin-top: clamp(20px, 3vw, 32px);
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .pc-case {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--ink);
  transition: background var(--dur) var(--ease);
}

.page-contact .pc-case:hover {
  background: var(--board);
}

.page-contact .pc-case__no {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--flame);
}

.page-contact .pc-case__title {
  margin: 0;
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 700;
  color: var(--cream);
}

.page-contact .pc-case__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .pc-case__need {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--graphite);
}

.page-contact .pc-case__link {
  align-self: flex-start;
  margin-top: auto;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .pc-case__link:hover,
.page-contact .pc-case__link:focus-visible {
  border-color: var(--cyan);
}

/* ---------- 03 checklist ---------- */
.page-contact .pc-check {
  display: grid;
  gap: 1px;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line-soft);
  background: var(--line-soft);
}

.page-contact .pc-check__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: clamp(14px, 2vw, 18px) clamp(16px, 2.2vw, 22px);
  background: var(--board);
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .pc-check__item:hover {
  background: var(--board-lift);
  box-shadow: inset 2px 0 0 var(--cyan);
}

.page-contact .pc-check__item strong {
  color: var(--cream);
  font-weight: 700;
}

.page-contact .pc-check__mark {
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  border: 1px solid var(--cyan);
  background: var(--cyan-wash);
}

/* ---------- 04 cooperation ---------- */
.page-contact .pc-coop-grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  margin-top: clamp(20px, 3vw, 32px);
}

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

.page-contact .pc-coop__item:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-coop__item summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: clamp(14px, 2vw, 20px) 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(16px, 1.8vw, 19px);
  font-weight: 700;
  color: var(--cream);
}

.page-contact .pc-coop__item summary::-webkit-details-marker {
  display: none;
}

.page-contact .pc-coop__item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 400;
  color: var(--cyan);
  transition: transform var(--dur) var(--ease);
}

.page-contact .pc-coop__item[open] summary::after {
  transform: rotate(45deg);
}

.page-contact .pc-coop__no {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--graphite);
}

.page-contact .pc-coop__body {
  padding: 0 0 clamp(16px, 2vw, 22px);
  font-size: 15px;
  line-height: 1.82;
  color: var(--mist);
}

.page-contact .pc-coop__body p {
  margin: 0 0 12px;
}

.page-contact .pc-coop__need {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-contact .pc-coop-media {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--line);
  background: var(--board);
  overflow: hidden;
}

.page-contact .pc-coop-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.05);
}

/* ---------- 05 process ---------- */
.page-contact .pc-flow {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .pc-flow__step {
  position: relative;
  padding-top: 18px;
  border-top: 1px dashed var(--line-strong);
}

.page-contact .pc-flow__num {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--flame);
}

.page-contact .pc-flow__step h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--cream);
}

.page-contact .pc-flow__step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 06 address & legal ---------- */
.page-contact .pc-facts {
  display: grid;
  gap: 1px;
  margin: clamp(20px, 3vw, 32px) 0 0;
  border: 1px solid var(--line-soft);
  background: var(--line-soft);
}

.page-contact .pc-facts__row {
  display: grid;
  gap: 6px;
  padding: clamp(14px, 2vw, 20px) clamp(16px, 2.2vw, 24px);
  background: var(--board);
}

.page-contact .pc-facts__k {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--graphite);
}

.page-contact .pc-facts__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--cream);
  word-break: break-word;
}

.page-contact .pc-facts__v--mono {
  font-family: var(--mono);
  word-break: break-all;
}

.page-contact .pc-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--graphite);
}

.page-contact .pc-strip a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .pc-strip a:hover,
.page-contact .pc-strip a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- aside ---------- */
.page-contact .pc-aside {
  margin-top: clamp(36px, 5vw, 56px);
}

.page-contact .pc-aside__card {
  padding: clamp(20px, 2.6vw, 28px);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  background: var(--board);
}

.page-contact .pc-aside__title {
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--cyan);
}

.page-contact .pc-info {
  padding: 14px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .pc-info:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.page-contact .pc-info__k {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--graphite);
}

.page-contact .pc-info__v {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(15px, 1.8vw, 17px);
  font-weight: 700;
  color: var(--cream);
  word-break: break-all;
}

.page-contact .pc-info__v--sm {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--mist);
  word-break: break-word;
}

.page-contact .pc-aside__note {
  margin: 18px 0 0;
  padding: 12px 14px;
  border-left: 2px solid var(--cyan);
  background: var(--cyan-wash);
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .pc-aside__actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}

.page-contact .pc-aside__actions .btn {
  justify-content: center;
  text-align: center;
}

/* ---------- responsive ---------- */
@media (min-width: 640px) {
  .page-contact .pc-chans {
    grid-template-columns: 1fr 1fr;
  }

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

  .page-contact .pc-facts__row {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 800px) {
  .page-contact .pc-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(24px, 3vw, 40px);
  }

  .page-contact .pc-flow__step::after {
    content: "\203A";
    position: absolute;
    top: -14px;
    right: -0.9em;
    font-family: var(--mono);
    font-size: 20px;
    color: var(--line-strong);
  }

  .page-contact .pc-flow__step:last-child::after {
    content: none;
  }
}

@media (min-width: 1024px) {
  .page-contact .pc-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    align-items: start;
    gap: clamp(32px, 4vw, 64px);
  }

  .page-contact .pc-aside {
    margin-top: 0;
    position: sticky;
    top: calc(var(--bar-h) + 28px);
  }
}

@media (min-width: 1100px) {
  .page-contact .pc-coop-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-chan,
  .page-contact .pc-case,
  .page-contact .pc-check__item,
  .page-contact .pc-coop__item summary::after,
  .page-contact .pc-strip a {
    transition: none;
  }

  .page-contact .pc-chan:hover {
    transform: none;
  }
}