.page-contact {
  background: var(--paper);
  color: var(--charcoal);
  padding-bottom: clamp(56px, 8vw, 112px);
}

/* ---------- hero ---------- */
.page-contact .contact-hero {
  background-color: var(--ink-green);
  background-image:
    linear-gradient(to right, rgba(200, 164, 93, 0.11) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(200, 164, 93, 0.11) 1px, transparent 1px);
  background-size: 56px 56px;
  color: var(--paper);
  padding: calc(var(--header-h) + clamp(20px, 4vw, 36px)) 0 clamp(44px, 6vw, 72px);
  border-bottom: 1px solid var(--gold);
}

.page-contact .hall-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--line);
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-contact .hall-breadcrumb a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease);
}

.page-contact .hall-breadcrumb a:hover,
.page-contact .hall-breadcrumb a:focus-visible {
  border-bottom-color: var(--gold);
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-contact .contact-hero .hall-kicker {
  color: var(--gold);
  margin: 0 0 14px;
}

.page-contact h1 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(32px, 5.4vw, 58px);
  line-height: 1.16;
  letter-spacing: 0.02em;
  margin: 0 0 20px;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--sage);
}

.page-contact .contact-hero__meta {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-contact .contact-hero__meta-item {
  border-top: 1px solid rgba(200, 164, 93, 0.42);
  padding: 14px 0;
}

.page-contact .contact-hero__meta-item:last-child {
  border-bottom: 1px solid rgba(200, 164, 93, 0.42);
}

.page-contact .contact-hero__meta dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 6px;
}

.page-contact .contact-hero__meta dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--white);
  letter-spacing: 0.01em;
}

/* ---------- split ---------- */
.page-contact .contact-split {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(36px, 5vw, 64px);
}

/* ---------- left board ---------- */
.page-contact .contact-board {
  background: var(--ink-green);
  color: var(--paper);
  border: 1px solid var(--forest);
  padding: clamp(20px, 2.6vw, 32px);
}

.page-contact .contact-board__head .hall-kicker {
  color: var(--gold);
  margin: 0 0 12px;
}

.page-contact .contact-board h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.35;
  letter-spacing: 0.02em;
  color: var(--white);
  margin: 0 0 12px;
}

.page-contact .contact-board__intro {
  margin: 0 0 22px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--sage);
}

.page-contact .image-frame {
  margin: 0;
  overflow: hidden;
  background: var(--forest);
}

.page-contact .contact-board__figure {
  border: 1px solid rgba(200, 164, 93, 0.38);
  margin-bottom: 26px;
}

.page-contact .image-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .image-frame__caption {
  padding: 10px 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--line);
  border-top: 1px solid rgba(200, 164, 93, 0.24);
}

.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .channel {
  position: relative;
  padding: 18px 0 20px;
  border-top: 1px solid rgba(200, 164, 93, 0.26);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width 240ms var(--ease);
}

.page-contact .channel:hover::before,
.page-contact .channel:focus-within::before {
  width: 100%;
}

.page-contact .channel__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.page-contact .channel__no {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
  border: 1px solid rgba(200, 164, 93, 0.45);
  padding: 3px 6px;
  line-height: 1;
}

.page-contact .channel__icon {
  display: inline-flex;
  color: var(--gold);
}

.page-contact .channel__title {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--white);
  margin: 0;
}

.page-contact .channel__text {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--sage);
}

.page-contact .channel__value {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
}

.page-contact .channel__mono {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--white);
  letter-spacing: 0.01em;
  word-break: break-all;
}

.page-contact .copy-btn {
  appearance: none;
  cursor: pointer;
  background: transparent;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 6px 12px;
  transition: background-color 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: var(--gold);
  color: var(--ink-green);
}

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

.page-contact .copy-status {
  font-size: 12px;
  color: var(--coral-soft);
  letter-spacing: 0.04em;
  min-height: 1em;
}

.page-contact .channel__action {
  margin: 0;
  font-size: 14px;
}

/* ---------- side column ---------- */
.page-contact .contact-side {
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
  align-content: start;
}

.page-contact .feedback-card,
.page-contact .visit-card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: clamp(20px, 2.6vw, 32px);
  transition: border-color 180ms var(--ease);
}

.page-contact .feedback-card:hover,
.page-contact .visit-card:hover,
.page-contact .feedback-card:focus-within {
  border-color: var(--gold);
}

.page-contact .side-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--ink-green);
  margin: 0 0 10px;
}

.page-contact .side-lead {
  margin: 0 0 20px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--charcoal);
}

.page-contact .feedback-card .hall-kicker,
.page-contact .visit-card .hall-kicker {
  color: var(--gold-deep);
  margin: 0 0 10px;
}

.page-contact .feedback-card__figure {
  border: 1px solid var(--line);
  margin-bottom: 22px;
}

.page-contact .feedback-card__figure .image-frame__caption {
  color: var(--gold-deep);
  border-top: 1px solid var(--line);
  background: var(--paper);
}

.page-contact .feedback-steps {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .feedback-step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-contact .feedback-step__no {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 34px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gold-deep);
  border: 1px solid var(--line);
  background: var(--sage);
}

.page-contact .feedback-step__title {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-green);
  margin: 0 0 4px;
}

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

.page-contact .visit-route {
  margin: 4px 0 16px;
  color: var(--line);
  border: 1px solid var(--line);
  background: var(--sage);
  padding: 8px;
}

.page-contact .visit-route svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .visit-card__addr {
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--ink-green);
  border-left: 3px solid var(--gold);
  padding-left: 12px;
  margin: 0 0 12px;
}

.page-contact .visit-card__text {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--charcoal);
}

.page-contact .visit-card__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gold-deep);
  background: var(--coral-soft);
  padding: 10px 12px;
}

/* ---------- coop ---------- */
.page-contact .coop {
  margin-top: clamp(48px, 7vw, 96px);
  border-top: 1px solid var(--line);
  padding-top: clamp(32px, 4vw, 56px);
}

.page-contact .coop__head h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--ink-green);
  margin: 0 0 12px;
}

.page-contact .coop__head .hall-kicker {
  color: var(--gold-deep);
  margin: 0 0 12px;
}

.page-contact .coop__lead {
  margin: 0 0 28px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--charcoal);
}

.page-contact .coop-grid {
  display: grid;
  gap: 20px;
}

.page-contact .coop-card {
  background: var(--sage);
  border: 1px solid var(--line);
  padding: clamp(20px, 2.6vw, 32px);
  transition: background-color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-contact .coop-card:hover,
.page-contact .coop-card:focus-within {
  background: var(--white);
  border-color: var(--gold);
}

.page-contact .coop-card__tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-green);
  background: var(--gold);
  padding: 4px 10px;
  margin: 0 0 14px;
}

.page-contact .coop-card__title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.45;
  color: var(--ink-green);
  margin: 0 0 10px;
}

.page-contact .coop-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--charcoal);
}

.page-contact .coop-card__subject {
  margin: 16px 0 0;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--gold-deep);
  background: var(--white);
  border-left: 3px solid var(--coral);
  padding: 10px 12px;
}

.page-contact .coop__foot {
  margin: 24px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--forest);
}

/* ---------- faq ---------- */
.page-contact .contact-faq {
  margin-top: clamp(48px, 7vw, 96px);
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

.page-contact .contact-faq__aside .hall-kicker {
  color: var(--gold-deep);
  margin: 0 0 12px;
}

.page-contact .contact-faq__aside h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--ink-green);
  margin: 0 0 14px;
}

.page-contact .contact-faq__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--charcoal);
  border-left: 3px solid var(--line);
  padding-left: 12px;
}

.page-contact .contact-faq__list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

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

.page-contact .faq-item[open] {
  background: var(--white);
}

.page-contact .faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 16px 18px 0;
  font-family: var(--serif);
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink-green);
}

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

.page-contact .faq-item summary::after {
  content: "＋";
  flex: 0 0 auto;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--gold-deep);
  line-height: 1.4;
}

.page-contact .faq-item[open] summary::after {
  content: "－";
}

.page-contact .faq-item summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-contact .faq-item__body {
  padding: 0 16px 20px 0;
}

.page-contact .faq-item__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--charcoal);
}

.page-contact .text-link {
  color: var(--gold-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

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

.page-contact .contact-board .text-link {
  color: var(--gold);
  border-bottom-color: rgba(200, 164, 93, 0.6);
}

.page-contact .contact-board .text-link:hover,
.page-contact .contact-board .text-link:focus-visible {
  color: var(--coral-soft);
  border-bottom-color: var(--coral-soft);
}

.page-contact .hall-btn {
  display: inline-block;
}

/* ---------- responsive ---------- */
@media (min-width: 760px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-contact .contact-faq {
    grid-template-columns: minmax(0, 0.42fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .contact-faq__aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (min-width: 960px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: start;
  }
}

@media (hover: hover) and (min-width: 760px) {
  .page-contact .coop-card__subject {
    max-height: 0;
    opacity: 0;
    padding-top: 0;
    padding-bottom: 0;
    margin-top: 0;
    overflow: hidden;
    transition: max-height 240ms var(--ease), opacity 180ms var(--ease), margin-top 200ms var(--ease), padding 200ms var(--ease);
  }

  .page-contact .coop-card:hover .coop-card__subject,
  .page-contact .coop-card:focus-within .coop-card__subject {
    max-height: 160px;
    opacity: 1;
    padding-top: 10px;
    padding-bottom: 10px;
    margin-top: 16px;
  }
}
<<<END>>>