.page-contact {
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  line-height: 1.8;
  padding-bottom: clamp(40px, 6vw, 88px);
  overflow-x: hidden;
}

.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: clamp(16px, 2.4vw, 24px) 0 clamp(8px, 1.4vw, 14px);
  font-size: 13px;
  color: var(--mist);
}

.page-contact .breadcrumb__list > li + li::before {
  content: "/";
  margin-right: 10px;
  color: var(--mist);
}

.page-contact .breadcrumb__link {
  color: var(--grey);
  text-decoration: none;
}

.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--grass);
}

.page-contact .breadcrumb__current {
  color: var(--flare);
  font-weight: 700;
}

/* 首屏 */
.page-contact .co-hero {
  position: relative;
  padding: clamp(20px, 3vw, 34px) 0 clamp(30px, 5vw, 56px);
  overflow: hidden;
}

.page-contact .co-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -22%;
  width: 78vw;
  height: 78vw;
  max-width: 720px;
  max-height: 720px;
  background: radial-gradient(circle at 36% 36%, rgba(35, 48, 107, .95), rgba(10, 16, 48, 0) 68%);
  pointer-events: none;
}

.page-contact .co-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

.page-contact .co-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--grass);
}

.page-contact .co-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6vw, 62px);
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .co-hero__lead {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 46ch;
  font-size: 15px;
  color: var(--grey);
}

.page-contact .co-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-contact .co-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 12px;
  list-style: none;
  margin: clamp(24px, 3.4vw, 34px) 0 0;
  padding: clamp(16px, 2.4vw, 20px) 0 0;
  border-top: var(--line-soft);
}

.page-contact .co-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.page-contact .co-hero__stat .tally {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.1;
  color: var(--flare);
}

.page-contact .co-hero__stat-label {
  font-size: 12px;
  color: var(--mist);
  letter-spacing: .04em;
}

.page-contact .co-hero__figure {
  margin: 0;
  border: var(--line);
  box-shadow: var(--shadow-hard);
  background: var(--ink-2);
}

.page-contact .co-hero__figure .figure__media img,
.page-contact .co-flow-figure .figure__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* 主布局：左轨道 + 右内容 */
.page-contact .co-layout {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .co-rail {
  border: var(--line);
  background: var(--ink-2);
  box-shadow: var(--shadow-hard-sm);
  padding: 16px 18px;
}

.page-contact .co-rail .rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--grass);
}

.page-contact .co-rail .rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .co-rail .rail__link {
  display: block;
  padding: 7px 10px;
  font-size: 14px;
  color: var(--grey);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: color .18s var(--ease), background-color .18s var(--ease);
}

.page-contact .co-rail .rail__link:hover,
.page-contact .co-rail .rail__link:focus-visible {
  color: var(--white);
  background: rgba(35, 48, 107, .7);
}

.page-contact .co-rail .rail__link.is-active {
  color: var(--flare);
  border-left-color: var(--flare);
  background: rgba(35, 48, 107, .55);
}

.page-contact .co-rail__card {
  margin-top: 16px;
  padding-top: 14px;
  border-top: var(--line-soft);
  font-size: 13px;
  color: var(--grey);
}

.page-contact .co-rail__card p {
  margin: 0 0 6px;
}

.page-contact .co-rail__card-title {
  font-weight: 700;
  color: var(--white);
}

.page-contact .co-inline-link {
  color: var(--grass);
  text-decoration: none;
  border-bottom: 1px solid rgba(75, 227, 138, .45);
}

.page-contact .co-inline-link:hover,
.page-contact .co-inline-link:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

.page-contact .co-main {
  min-width: 0;
}

.page-contact .co-block {
  padding: clamp(26px, 4vw, 44px) 0;
}

.page-contact .co-block + .co-block {
  border-top: var(--line-soft);
}

.page-contact .co-block .section-head__note {
  max-width: 58ch;
  color: var(--mist);
}

/* 合作方向 */
.page-contact .co-filter {
  position: relative;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-contact .co-filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.page-contact .co-filter__labels {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(16px, 2.4vw, 22px);
}

.page-contact .co-filter__label {
  cursor: pointer;
  padding: 6px 13px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--grey);
  background: transparent;
  border: 1px solid rgba(199, 208, 228, .3);
  transition: background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .co-filter__label:hover {
  color: var(--white);
  border-color: var(--grey);
}

.page-contact #co-f-all:checked ~ .co-filter__labels [for="co-f-all"],
.page-contact #co-f-venue:checked ~ .co-filter__labels [for="co-f-venue"],
.page-contact #co-f-youth:checked ~ .co-filter__labels [for="co-f-youth"],
.page-contact #co-f-media:checked ~ .co-filter__labels [for="co-f-media"],
.page-contact #co-f-event:checked ~ .co-filter__labels [for="co-f-event"] {
  background: var(--flare);
  color: var(--ink);
  border-color: var(--ink-edge);
  font-weight: 600;
}

.page-contact #co-f-all:focus-visible ~ .co-filter__labels [for="co-f-all"],
.page-contact #co-f-venue:focus-visible ~ .co-filter__labels [for="co-f-venue"],
.page-contact #co-f-youth:focus-visible ~ .co-filter__labels [for="co-f-youth"],
.page-contact #co-f-media:focus-visible ~ .co-filter__labels [for="co-f-media"],
.page-contact #co-f-event:focus-visible ~ .co-filter__labels [for="co-f-event"] {
  outline: 2px solid var(--grass);
  outline-offset: 3px;
}

.page-contact #co-f-venue:checked ~ .co-cards > .co-card:not([data-cat="venue"]),
.page-contact #co-f-youth:checked ~ .co-cards > .co-card:not([data-cat="youth"]),
.page-contact #co-f-media:checked ~ .co-cards > .co-card:not([data-cat="media"]),
.page-contact #co-f-event:checked ~ .co-cards > .co-card:not([data-cat="event"]) {
  display: none;
}

.page-contact .co-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .co-card {
  position: relative;
  min-width: 0;
  background: linear-gradient(165deg, var(--ink-2), var(--ink));
  border: var(--line);
  box-shadow: var(--shadow-hard-sm);
  padding: clamp(18px, 2.6vw, 24px);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}

.page-contact .co-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
}

.page-contact .co-card__num {
  display: inline-block;
  padding: 2px 9px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--flare);
}

.page-contact .co-card__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 21px;
  line-height: 1.25;
  letter-spacing: .01em;
  color: var(--white);
}

.page-contact .co-card__meta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  margin: 14px 0 0;
}

.page-contact .co-card__meta dt {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-contact .co-card__meta dd {
  margin: 0 0 10px;
  font-size: 14px;
  color: var(--grey);
}

.page-contact .co-card__meta dd:last-child {
  margin-bottom: 0;
  color: var(--grass);
  font-family: var(--font-mono);
  font-size: 13px;
}

/* 流程 */
.page-contact .co-steps {
  position: relative;
  list-style: none;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0 0 0 16px;
  display: grid;
  gap: 14px;
}

.page-contact .co-steps::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 4px;
  background: var(--ink-3);
}

.page-contact .co-step {
  min-width: 0;
  border: var(--line);
  background: var(--ink-2);
  box-shadow: var(--shadow-hard-sm);
}

.page-contact .co-step__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.page-contact .co-step__summary::-webkit-details-marker {
  display: none;
}

.page-contact .co-step__num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  line-height: 1.5;
  padding: 2px 8px;
  color: var(--ink);
  background: var(--flare);
}

.page-contact .co-step__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: .02em;
  color: var(--white);
}

.page-contact .co-step__time {
  margin-left: auto;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--grass);
  border: 1px solid rgba(75, 227, 138, .35);
}

.page-contact .co-step__body {
  padding: 12px 16px 16px;
  border-top: var(--line-soft);
}

.page-contact .co-step__body p {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--grey);
}

.page-contact .co-step__list {
  margin: 0;
  padding-left: 18px;
  font-size: 14px;
  color: var(--grey);
}

.page-contact .co-flow-figure {
  margin: clamp(20px, 3vw, 28px) 0 0;
  border: var(--line);
  box-shadow: var(--shadow-hard-sm);
  background: var(--ink-2);
}

/* 成果 */
.page-contact .co-values {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  list-style: none;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
}

.page-contact .co-value {
  min-width: 0;
  padding: 16px 18px;
  background: var(--ink-2);
  border-left: 4px solid var(--flare);
  border-top: var(--line-soft);
  border-right: var(--line-soft);
  border-bottom: var(--line-soft);
}

.page-contact .co-value__tag {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--grass);
}

.page-contact .co-value p {
  margin: 0;
  font-size: 14px;
  color: var(--grey);
}

.page-contact .co-value__foot {
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--mist);
}

/* 联系 */
.page-contact .co-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-contact .co-contact__card {
  min-width: 0;
  padding: clamp(18px, 2.8vw, 26px);
  background: var(--ink-2);
  border: var(--line);
  box-shadow: var(--shadow-hard-sm);
}

.page-contact .co-contact__status {
  display: flex;
  align-items: center;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--grass);
}

.page-contact .co-contact__dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 9px;
  border-radius: 50%;
  background: var(--grass);
  box-shadow: 0 0 0 4px rgba(75, 227, 138, .18);
}

.page-contact .co-contact__list {
  margin: 0;
}

.page-contact .co-contact__row {
  display: grid;
  gap: 2px;
  padding: 11px 0;
  border-top: var(--line-soft);
}

.page-contact .co-contact__row:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .co-contact__row dt {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-contact .co-contact__row dd {
  margin: 0;
  font-size: 15px;
  color: var(--white);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .co-contact__row dd.tally {
  font-family: var(--font-mono);
  font-weight: 600;
}

.page-contact .co-contact__aside {
  min-width: 0;
  padding: clamp(18px, 2.8vw, 26px);
  background: rgba(35, 48, 107, .45);
  border: 1px solid rgba(199, 208, 228, .22);
}

.page-contact .co-contact__aside p {
  margin: 0 0 12px;
  font-size: 14px;
  color: var(--grey);
}

.page-contact .co-contact__aside .btn {
  margin-top: 6px;
}

/* 问答 */
.page-contact .co-faq {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-contact .co-faq__item {
  min-width: 0;
  background: var(--ink-2);
  border: var(--line);
}

.page-contact .co-faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.page-contact .co-faq__q::-webkit-details-marker {
  display: none;
}

.page-contact .co-faq__q::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--flare);
}

.page-contact .co-faq__item[open] .co-faq__q::after {
  content: "–";
}

.page-contact .co-faq__title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

.page-contact .co-faq__a {
  padding: 0 16px 16px;
  border-top: var(--line-soft);
  padding-top: 12px;
}

.page-contact .co-faq__a p {
  margin: 0;
  font-size: 14px;
  color: var(--grey);
}

@media (min-width: 560px) {
  .page-contact .co-card__meta {
    grid-template-columns: 86px minmax(0, 1fr);
    gap: 4px 14px;
  }

  .page-contact .co-card__meta dd {
    margin-bottom: 8px;
  }
}

@media (min-width: 720px) {
  .page-contact .co-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .co-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .co-values {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .co-contact {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }
}

@media (min-width: 960px) {
  .page-contact .co-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: center;
  }

  .page-contact .co-flow-figure {
    margin-top: 30px;
  }
}

@media (min-width: 1024px) {
  .page-contact .co-layout {
    grid-template-columns: 232px minmax(0, 1fr);
  }

  .page-contact .co-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }

  .page-contact .co-rail .rail__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-card,
  .page-contact .co-rail .rail__link,
  .page-contact .co-filter__label {
    transition: none;
  }

  .page-contact .co-card:hover {
    transform: none;
  }
}
<<<END>>>