.page-contact {
  --pc-gap: clamp(16px, 2.4vw, 28px);
  --pc-pad: clamp(20px, 2.8vw, 32px);
}

/* ---------- reveal ---------- */
.page-contact [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .48s var(--ease), transform .48s var(--ease);
}

.page-contact [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- breadcrumbs ---------- */
.page-contact .breadcrumbs {
  padding-top: clamp(16px, 2.5vw, 28px);
}

.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-contact .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-contact .breadcrumb-link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .28s var(--ease), border-color .28s var(--ease);
}

.page-contact .breadcrumb-link:hover,
.page-contact .breadcrumb-link:focus-visible {
  color: var(--lemon);
  border-bottom-color: var(--lemon);
}

.page-contact .breadcrumb-current {
  color: var(--text);
}

/* ---------- hero ---------- */
.page-contact .contact-hero {
  padding-block: clamp(24px, 4vw, 52px) clamp(44px, 6.5vw, 92px);
}

.page-contact .contact-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}

.page-contact .hero-copy .display-title {
  margin-top: 14px;
  max-width: 14ch;
  line-height: 1.12;
}

.page-contact .lede {
  margin-top: 20px;
  max-width: 33em;
  font-size: clamp(1rem, 1.1vw, 1.075rem);
  line-height: 1.82;
  color: var(--muted);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-contact .hero-media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  background: var(--ink-1);
  box-shadow: var(--shadow-panel);
  transform: rotate(-1.6deg);
}

.page-contact .hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  max-width: 100%;
}

.page-contact .hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(142deg, rgba(122, 59, 255, .30), transparent 46%, rgba(46, 139, 255, .24)),
    linear-gradient(to top, rgba(11, 7, 24, .72), transparent 55%);
}

/* ---------- section heads ---------- */
.page-contact .fork-head,
.page-contact .channel-head,
.page-contact .partner-head {
  max-width: 60ch;
}

.page-contact .fork-title,
.page-contact .channel-title,
.page-contact .feedback-title,
.page-contact .partner-title,
.page-contact .visit-title {
  margin-top: 12px;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3.1vw, 2.15rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.24;
  color: var(--text);
}

.page-contact .fork-sub,
.page-contact .body-copy {
  margin-top: 14px;
  max-width: 36em;
  font-size: .975rem;
  line-height: 1.82;
  color: var(--muted);
}

/* ---------- fork ---------- */
.page-contact .fork-section {
  padding-block: clamp(8px, 1.5vw, 20px) clamp(40px, 6vw, 80px);
}

.page-contact .fork {
  margin-top: clamp(28px, 4vw, 48px);
}

.page-contact .fork-svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 200px;
  overflow: visible;
}

.page-contact .fork-stem {
  fill: none;
  stroke: var(--muted);
  stroke-opacity: .5;
  stroke-width: 2;
  stroke-linecap: round;
}

.page-contact .fork-branch {
  fill: none;
  stroke: var(--violet);
  stroke-opacity: .48;
  stroke-width: 2;
  stroke-linecap: round;
  transition: stroke-opacity .36s var(--ease), stroke-width .36s var(--ease), filter .36s var(--ease);
}

.page-contact .fork-branch--b {
  stroke: var(--blue);
}

.page-contact .fork-glow {
  opacity: .4;
  transition: opacity .36s var(--ease);
}

.page-contact .fork-dot {
  transition: r .36s var(--ease), filter .36s var(--ease);
}

.page-contact .fork-dot--a { fill: var(--violet); }
.page-contact .fork-dot--b { fill: var(--blue); }

.page-contact .fork:has(.fork-card--new:hover) .fork-branch--a,
.page-contact .fork:has(.fork-card--new:focus-within) .fork-branch--a {
  stroke-opacity: 1;
  stroke-width: 3;
  filter: drop-shadow(0 0 9px rgba(122, 59, 255, .85));
}

.page-contact .fork:has(.fork-card--old:hover) .fork-branch--b,
.page-contact .fork:has(.fork-card--old:focus-within) .fork-branch--b {
  stroke-opacity: 1;
  stroke-width: 3;
  filter: drop-shadow(0 0 9px rgba(46, 139, 255, .85));
}

.page-contact .fork:has(.fork-card--new:hover) .fork-glow--a,
.page-contact .fork:has(.fork-card--old:hover) .fork-glow--b {
  opacity: .95;
}

.page-contact .fork-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: clamp(-34px, -2.2vw, -10px);
}

.page-contact .fork-card {
  position: relative;
  padding: var(--pc-pad);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  background: linear-gradient(162deg, rgba(30, 18, 64, .96), rgba(11, 7, 24, .78));
  box-shadow: var(--shadow-panel);
  transition: border-color .36s var(--ease), transform .36s var(--ease), box-shadow .36s var(--ease);
}

.page-contact .fork-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 68px;
  height: 2px;
}

.page-contact .fork-card--new::before {
  background: var(--violet);
  box-shadow: var(--glow-violet);
}

.page-contact .fork-card--old::before {
  background: var(--blue);
  box-shadow: 0 0 20px rgba(46, 139, 255, .6);
}

.page-contact .fork-card:hover,
.page-contact .fork-card:focus-within {
  transform: translateY(-3px);
  border-color: var(--panel-border-strong);
}

.page-contact .fork-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-contact .fork-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lemon);
  box-shadow: 0 0 10px rgba(232, 255, 77, .8);
}

.page-contact .fork-card--old .fork-tag::before {
  background: var(--mint);
  box-shadow: 0 0 10px rgba(23, 224, 176, .8);
}

.page-contact .fork-card h3 {
  margin-top: 14px;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1.9vw, 1.32rem);
  font-weight: 800;
  line-height: 1.36;
  color: var(--text);
}

.page-contact .fork-card p {
  margin-top: 12px;
  font-size: .93rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .fork-link {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  margin-top: 20px;
  font-size: .9rem;
  font-weight: 600;
  color: var(--lemon);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 255, 77, .35);
  padding-bottom: 2px;
  transition: border-color .28s var(--ease), color .28s var(--ease);
}

.page-contact .fork-link::after {
  content: "→";
  font-family: var(--font-mono);
  transition: transform .28s var(--ease);
}

.page-contact .fork-link:hover,
.page-contact .fork-link:focus-visible {
  border-bottom-color: var(--lemon);
}

.page-contact .fork-link:hover::after {
  transform: translateX(4px);
}

/* ---------- channel bar ---------- */
.page-contact .channel-section {
  padding-block: clamp(32px, 5vw, 68px);
}

.page-contact .channel-bar {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: clamp(24px, 3.4vw, 40px);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(30, 18, 64, .92), rgba(20, 11, 46, .86));
  overflow: hidden;
}

.page-contact .channel-cell {
  padding: var(--pc-pad);
  border-top: 1px solid var(--line);
}

.page-contact .channel-cell:first-child {
  border-top: 0;
}

.page-contact .channel-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--muted);
}

.page-contact .channel-value {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: clamp(.98rem, 1.45vw, 1.1rem);
  font-weight: 500;
  line-height: 1.5;
  color: var(--lemon);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel-cell:nth-child(2) .channel-value {
  color: var(--blue);
}

.page-contact .channel-cell:nth-child(3) .channel-value {
  color: var(--text);
  font-size: clamp(.95rem, 1.3vw, 1.02rem);
}

.page-contact .channel-note {
  margin-top: 12px;
  font-size: .89rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .channel-foot {
  margin-top: 18px;
  padding: 14px 18px;
  border-left: 2px solid var(--warn);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(255, 154, 61, .07);
  font-size: .87rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- feedback ---------- */
.page-contact .feedback-section {
  padding-block: clamp(40px, 6vw, 84px);
}

.page-contact .feedback-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-contact .list-title {
  margin-top: 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--blue);
}

.page-contact .feedback-list {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(30, 18, 64, .5);
  transition: border-color .3s var(--ease), background .3s var(--ease);
}

.page-contact .check-item:hover {
  border-color: var(--panel-border-strong);
}

.page-contact .check-item:has(input:checked) {
  border-color: rgba(23, 224, 176, .55);
  background: rgba(23, 224, 176, .06);
}

.page-contact .check-item input {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  border: 1px solid var(--panel-border-strong);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
  transition: background .24s var(--ease), border-color .24s var(--ease);
}

.page-contact .check-item input:checked {
  background: var(--mint);
  border-color: var(--mint);
}

.page-contact .check-item input:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid var(--ink-0);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.page-contact .check-item input:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(23, 224, 176, .4);
}

.page-contact .check-text {
  font-size: .92rem;
  line-height: 1.72;
  color: var(--text);
  cursor: pointer;
}

.page-contact .check-text b {
  font-weight: 700;
  color: var(--lemon);
}

.page-contact .check-hint {
  margin-top: 12px;
  font-size: .83rem;
  letter-spacing: .02em;
  color: var(--muted);
}

.page-contact .feedback-copy .btn {
  margin-top: 26px;
}

.page-contact .feedback-media {
  margin: 0;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-1);
  box-shadow: var(--shadow-panel);
}

.page-contact .feedback-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 8 / 5;
  object-fit: cover;
}

.page-contact .feedback-media .media-caption {
  display: block;
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-size: .82rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- partner ---------- */
.page-contact .partner-section {
  padding-block: clamp(32px, 5vw, 68px);
}

.page-contact .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.4vw, 26px);
  margin-top: clamp(26px, 3.6vw, 42px);
}

.page-contact .partner-item {
  padding: 4px 0 4px 22px;
  border-left: 1px solid var(--line);
  transition: border-color .32s var(--ease);
}

.page-contact .partner-item:hover {
  border-left-color: var(--pink);
}

.page-contact .partner-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--pink);
}

.page-contact .partner-item h3 {
  margin-top: 10px;
  font-family: var(--font-display);
  font-size: clamp(1.02rem, 1.6vw, 1.15rem);
  font-weight: 800;
  color: var(--text);
}

.page-contact .partner-item p {
  margin-top: 10px;
  font-size: .9rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .partner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(28px, 4vw, 44px);
}

/* ---------- visit ---------- */
.page-contact .visit-section {
  padding-block: clamp(32px, 5vw, 72px) clamp(56px, 8vw, 112px);
}

.page-contact .visit-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.6vw, 48px);
  align-items: start;
}

.page-contact .visit-plate {
  padding: var(--pc-pad);
  border: 1px dashed var(--panel-border-strong);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 88% 12%, rgba(122, 59, 255, .18), transparent 60%),
    rgba(30, 18, 64, .55);
}

.page-contact .visit-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--muted);
}

.page-contact .visit-addr {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 1.7vw, 1.18rem);
  line-height: 1.7;
  color: var(--lemon);
}

.page-contact .visit-mail {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: .9rem;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .visit-icp {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--muted);
}

/* ---------- media queries ---------- */
@media (min-width: 640px) {
  .page-contact .fork-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(16px, 2vw, 24px);
  }
}

@media (min-width: 820px) {
  .page-contact .channel-bar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .channel-cell {
    border-top: 0;
    border-left: 1px solid var(--line);
  }

  .page-contact .channel-cell:first-child {
    border-left: 0;
  }

  .page-contact .visit-inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero-inner {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
    gap: clamp(32px, 4.5vw, 72px);
  }

  .page-contact .feedback-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  }

  .page-contact .partner-grid {
    margin-top: clamp(30px, 3.4vw, 46px);
  }
}

@media (min-width: 1100px) {
  .page-contact .hero-media {
    transform: rotate(-2.2deg);
  }
}

@media (max-width: 639px) {
  .page-contact .fork-svg {
    max-height: 120px;
  }

  .page-contact .fork-cards {
    margin-top: -6px;
  }

  .page-contact .hero-media {
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal] {
    opacity: 1;
    transform: none;
    transition: opacity .12s linear;
  }

  .page-contact .fork-branch,
  .page-contact .fork-glow,
  .page-contact .fork-card,
  .page-contact .hero-media,
  .page-contact .fork-link::after {
    transition-duration: .12s;
  }

  .page-contact .fork-card:hover,
  .page-contact .fork-card:focus-within {
    transform: none;
  }

  .page-contact .fork-link:hover::after {
    transform: none;
  }
}
<<<END>>>