.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(22px, 4vw, 40px) clamp(44px, 7vw, 92px);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -14%;
  width: min(640px, 88vw);
  height: min(640px, 88vw);
  background-image:
    repeating-linear-gradient(90deg, rgba(30, 74, 63, 0.55) 0 1px, transparent 1px 54px),
    repeating-linear-gradient(0deg, rgba(30, 74, 63, 0.55) 0 1px, transparent 1px 54px);
  mask-image: radial-gradient(closest-side, #000 24%, transparent 76%);
  -webkit-mask-image: radial-gradient(closest-side, #000 24%, transparent 76%);
  opacity: 0.7;
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(52%, 620px);
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
  clip-path: polygon(0 0, 100% 100%, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(30px, 5vw, 56px);
  align-items: start;
  margin-top: clamp(22px, 4vw, 44px);
}

.page-contact .contact-hero__intro {
  min-width: 0;
}

.page-contact .contact-hero__intro h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.6vw, 62px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .contact-hero__lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .hero-contact {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  align-items: center;
  gap: 6px 18px;
  margin-block: clamp(24px, 4vw, 34px);
  padding: 20px 22px;
  border-left: 3px solid var(--cyan);
  background: linear-gradient(110deg, rgba(18, 51, 43, 0.96), rgba(18, 51, 43, 0.32));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-contact .hero-contact__num {
  grid-column: 1;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(28px, 6.4vw, 48px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .hero-contact .copy-chip {
  grid-column: 2;
  grid-row: 1;
  justify-self: start;
  margin-top: 0;
}

.page-contact .hero-contact__meta {
  grid-column: 1 / -1;
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .contact-hero__media {
  margin: 0;
  min-width: 0;
}

.page-contact .contact-hero__media img,
.page-contact .coop-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--ink-700);
}

.page-contact .contact-hero__media img {
  aspect-ratio: 12 / 8;
}

.page-contact .contact-hero__media .media__caption,
.page-contact .coop-media .media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--mist);
}

.page-contact .section-head {
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-contact .section-title {
  color: var(--paper);
}

.page-contact .section-note {
  color: var(--mist);
}

/* 联系卡片 */
.page-contact .reach-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .reach-card {
  position: relative;
  min-width: 0;
  padding: 24px 22px 22px;
  background: linear-gradient(158deg, var(--ink-800), rgba(11, 31, 26, 0.92));
  border-top: 2px solid var(--ink-700);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-contact .reach-card:hover {
  transform: translateY(-3px);
  border-top-color: var(--cyan);
}

.page-contact .reach-card--primary {
  background: linear-gradient(148deg, rgba(57, 242, 208, 0.12), var(--ink-800) 62%);
  border-top-color: var(--orange);
}

.page-contact .reach-card__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .reach-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.4vw, 21px);
  line-height: 1.4;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .reach-card--primary .reach-card__value {
  font-size: clamp(32px, 7vw, 52px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-contact .reach-card__value--time {
  color: var(--yellow);
}

.page-contact .reach-card__value--addr {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .reach-card__hint {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .reach-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.page-contact .copy-chip {
  display: inline-block;
  margin-top: 14px;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  text-decoration: none;
  background: transparent;
  border: 1px solid var(--ink-700);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .reach-card__actions .copy-chip {
  margin-top: 0;
}

.page-contact .copy-chip:hover,
.page-contact .copy-chip:focus-visible {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .copy-chip--link {
  color: var(--paper);
  border-color: var(--ink-700);
}

.page-contact .copy-chip--link:hover {
  color: var(--ink-900);
  background: var(--orange);
  border-color: var(--orange);
}

/* 合作方向 */
.page-contact .coop-head {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
  margin-bottom: clamp(28px, 4.5vw, 48px);
}

.page-contact .coop-head__text {
  min-width: 0;
}

.page-contact .coop-lead {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .coop-media {
  margin: 0;
  min-width: 0;
}

.page-contact .coop-media img {
  aspect-ratio: 10 / 7;
}

.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .coop-card {
  position: relative;
  min-width: 0;
  padding: 26px 22px 22px;
  background: linear-gradient(152deg, rgba(18, 51, 43, 0.96), rgba(11, 31, 26, 0.9));
  border-left: 2px solid var(--ink-700);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
  transition: transform 0.24s var(--ease), border-left-color 0.24s var(--ease);
}

.page-contact .coop-card:hover {
  transform: translateY(-3px);
  border-left-color: var(--orange);
}

.page-contact .coop-card__num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-contact .coop-card__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .coop-card__text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .coop-card .tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* 反馈流程手风琴 */
.page-contact .fb-list {
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--ink-700);
}

.page-contact .fb-item {
  border-bottom: 1px solid var(--ink-700);
  background: rgba(18, 51, 43, 0.4);
}

.page-contact .fb-item__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 18px 18px;
  cursor: pointer;
  list-style: none;
  transition: background 0.2s var(--ease);
}

.page-contact .fb-item__summary::-webkit-details-marker {
  display: none;
}

.page-contact .fb-item__summary:hover {
  background: rgba(57, 242, 208, 0.07);
}

.page-contact .fb-item__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-contact .fb-item__title {
  font-family: var(--font-display);
  font-size: clamp(16px, 2.2vw, 20px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .fb-item__summary::after {
  content: "";
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 0.24s var(--ease);
}

.page-contact .fb-item[open] .fb-item__summary::after {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-contact .fb-item[open] .fb-item__summary {
  background: rgba(57, 242, 208, 0.09);
}

.page-contact .fb-item__body {
  padding: 4px 18px 22px;
}

.page-contact .fb-item__body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .fb-item__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .fb-item__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .fb-item__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 2px;
  background: var(--orange);
}

/* 响应节奏 */
.page-contact .tl-list {
  display: grid;
  gap: 0;
  margin: 0 0 clamp(30px, 5vw, 52px);
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--ink-700);
}

.page-contact .tl-item {
  position: relative;
  padding: 0 0 26px 26px;
}

.page-contact .tl-item:last-child {
  padding-bottom: 0;
}

.page-contact .tl-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 9px;
  width: 9px;
  height: 9px;
  background: var(--ink-900);
  border: 2px solid var(--cyan);
  transform: rotate(45deg);
}

.page-contact .tl-item__time {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--yellow);
}

.page-contact .tl-item__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .tl-item__text {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .route-panel {
  padding: clamp(22px, 3.4vw, 34px);
  background: linear-gradient(135deg, rgba(255, 122, 47, 0.12), rgba(18, 51, 43, 0.85) 58%);
  border-top: 2px solid var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-contact .route-panel__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .route-panel__text {
  margin: 0 0 20px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-contact .link-list__item {
  border-bottom: 1px dashed rgba(30, 74, 63, 0.9);
  padding-bottom: 10px;
}

.page-contact .link-list__link {
  display: inline-block;
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

@media (min-width: 720px) {
  .page-contact .reach-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .reach-card--wide {
    grid-column: span 2;
  }

  .page-contact .coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .coop-card:nth-child(even) {
    margin-top: 30px;
  }

  .page-contact .fb-item__summary {
    padding: 20px 24px;
  }

  .page-contact .fb-item__body {
    padding: 4px 24px 26px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: center;
  }

  .page-contact .contact-hero__media {
    transform: translateY(18px);
  }

  .page-contact .coop-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    align-items: center;
  }

  .page-contact .coop-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

  .page-contact .coop-card:nth-child(even) {
    margin-top: 34px;
  }

  .page-contact .tl-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-left: 0;
    border-top: 1px solid var(--ink-700);
    gap: 26px;
  }

  .page-contact .tl-item {
    padding: 26px 0 0;
  }

  .page-contact .tl-item:last-child {
    padding-bottom: 0;
  }

  .page-contact .tl-item::before {
    left: 0;
    top: -5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .reach-card,
  .page-contact .coop-card,
  .page-contact .copy-chip,
  .page-contact .fb-item__summary::after {
    transition: none;
  }

  .page-contact .reach-card:hover,
  .page-contact .coop-card:hover {
    transform: none;
  }
}