.page-contact {
  --contact-line: rgba(30, 58, 86, .38);
  --contact-line-dark: rgba(143, 163, 184, .26);
  padding-top: var(--header-h);
  background: var(--night);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
}

.page-contact :focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .breadcrumb {
  padding: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--slate);
}

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

.page-contact .breadcrumb a {
  color: var(--cream);
  text-decoration: none;
}

.page-contact .breadcrumb a:hover {
  color: var(--cyan);
}

.page-contact .breadcrumb li[aria-current] {
  color: var(--slate);
}

/* 首屏联系说明牌 */
.page-contact .contact-hero {
  padding: 0 0 clamp(44px, 7vw, 82px);
}

.page-contact .contact-board {
  margin-top: clamp(18px, 3vw, 30px);
  padding: clamp(22px, 4vw, 46px) clamp(18px, 4vw, 46px) clamp(26px, 5vw, 48px);
  background: var(--cream);
  color: var(--brown);
  border: 1px solid var(--edge);
  border-top: 3px solid var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-contact .board-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 40px);
}

.page-contact .board-kicker {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--burnt);
}

.page-contact h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(1.85rem, 5.4vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: .01em;
  color: var(--brown);
}

.page-contact .board-lede {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  max-width: 56ch;
  font-size: clamp(.94rem, 1.6vw, 1.04rem);
  line-height: 1.78;
  color: rgba(36, 26, 20, .86);
}

.page-contact .board-media {
  margin: 0;
}

.page-contact .board-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--edge);
}

.page-contact .channels-title {
  margin: clamp(30px, 5vw, 46px) 0 0;
  padding-top: clamp(22px, 4vw, 32px);
  border-top: 1px solid var(--contact-line);
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.05rem, 2.4vw, 1.45rem);
  line-height: 1.25;
  letter-spacing: .03em;
  color: var(--brown);
}

.page-contact .channels {
  margin: clamp(14px, 2.4vw, 22px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--contact-line);
}

.page-contact .channel {
  padding: 20px 0 22px;
  border-bottom: 1px solid var(--contact-line);
  transition: transform .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .channel-num {
  margin: 0;
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--burnt);
}

.page-contact .channel-title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--brown);
}

.page-contact .channel-value {
  margin: 10px 0 0;
  font-size: clamp(.88rem, 1.5vw, .98rem);
  line-height: 1.5;
  overflow-wrap: anywhere;
  color: var(--brown);
}

.page-contact .channel-value a {
  color: var(--brown);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 101, 34, .8);
}

.page-contact .channel-value a:hover {
  color: var(--burnt);
  border-bottom-color: var(--burnt);
}

.page-contact .channel--mail .channel-value {
  font-size: clamp(.98rem, 2.1vw, 1.3rem);
  letter-spacing: -.01em;
  line-height: 1.35;
}

.page-contact .channel-meta {
  margin: 14px 0 0;
  display: grid;
  gap: 10px;
}

.page-contact .channel-meta div {
  display: grid;
  gap: 2px;
}

.page-contact .channel-meta dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--teal);
}

.page-contact .channel-meta dd {
  margin: 0;
  font-size: .82rem;
  line-height: 1.65;
  color: rgba(36, 26, 20, .8);
}

/* 通用章节标题 */
.page-contact .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.32rem, 3.2vw, 2rem);
  line-height: 1.2;
  letter-spacing: .01em;
}

.page-contact .section-kicker {
  margin: 0 0 12px;
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--teal);
}

/* 事项分类 */
.page-contact .contact-matters {
  padding: clamp(36px, 6vw, 72px) 0 clamp(40px, 6vw, 76px);
  background: var(--cream);
  color: var(--brown);
  border-top: 1px solid var(--edge);
}

.page-contact .matter-grid {
  margin-top: clamp(20px, 3vw, 30px);
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--contact-line);
}

.page-contact .matter {
  padding: 20px 0 24px;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .matter-num {
  margin: 0;
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--burnt);
}

.page-contact .matter h3 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--brown);
}

.page-contact .matter p {
  margin: 10px 0 0;
  font-size: .87rem;
  line-height: 1.72;
  color: rgba(36, 26, 20, .84);
}

.page-contact .matter-link {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--burnt);
  text-decoration: none;
  border-bottom: 1px solid rgba(184, 67, 15, .4);
}

.page-contact .matter-link:hover {
  color: var(--brown);
  border-bottom-color: var(--brown);
}

/* 响应安排 */
.page-contact .contact-response {
  padding: clamp(36px, 6vw, 72px) 0 clamp(40px, 6vw, 76px);
  background: var(--cream);
  color: var(--brown);
  border-top: 1px solid var(--contact-line);
}

.page-contact .response-grid {
  margin-top: clamp(18px, 3vw, 26px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 40px);
}

.page-contact .response-copy p {
  margin: 0 0 14px;
  max-width: 58ch;
  font-size: .94rem;
  line-height: 1.78;
  color: rgba(36, 26, 20, .86);
}

.page-contact .response-copy p:last-child {
  margin-bottom: 0;
}

.page-contact .response-stats {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--contact-line);
}

.page-contact .response-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .stat-num {
  font-family: var(--font-mono);
  font-size: .95rem;
  letter-spacing: .02em;
  color: var(--burnt);
  white-space: nowrap;
}

.page-contact .stat-label {
  font-size: .78rem;
  line-height: 1.5;
  text-align: right;
  color: rgba(36, 26, 20, .74);
}

.page-contact .fold {
  margin-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--contact-line);
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--brown);
}

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

.page-contact .fold summary::after {
  content: "+";
  font-size: 1rem;
  line-height: 1;
  color: var(--burnt);
}

.page-contact .fold[open] summary::after {
  content: "−";
}

.page-contact .fold-body {
  padding: 0 0 20px;
  max-width: 62ch;
  font-size: .88rem;
  line-height: 1.8;
  color: rgba(36, 26, 20, .84);
}

.page-contact .fold-body ol {
  margin: 0;
  padding-left: 1.15em;
  display: grid;
  gap: 8px;
}

.page-contact .response-note {
  margin: 18px 0 0;
  font-size: .82rem;
  line-height: 1.7;
  color: rgba(36, 26, 20, .7);
}

.page-contact .response-note a {
  color: var(--burnt);
  text-decoration: none;
  border-bottom: 1px solid rgba(184, 67, 15, .4);
}

.page-contact .response-note a:hover {
  color: var(--brown);
  border-bottom-color: var(--brown);
}

/* 来访与邮寄 */
.page-contact .contact-visit {
  padding: clamp(38px, 6.5vw, 78px) 0;
  background: var(--night);
  color: var(--cream);
  border-top: 1px solid var(--edge);
}

.page-contact .visit-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
}

.page-contact .contact-visit .section-kicker {
  color: var(--cyan);
}

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

.page-contact .visit-copy p {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(245, 239, 227, .84);
}

.page-contact .visit-address {
  font-size: .88em;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-contact .visit-media {
  margin: 0;
}

.page-contact .visit-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
  border: 1px solid var(--edge);
}

/* 备案与服务地区 */
.page-contact .contact-meta-strip {
  padding: clamp(30px, 5vw, 54px) 0 clamp(34px, 5vw, 58px);
  background: var(--ink-deep);
  color: var(--slate);
  border-top: 1px solid var(--edge);
}

.page-contact .meta-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1rem, 2vw, 1.22rem);
  letter-spacing: .05em;
  color: var(--cream);
}

.page-contact .meta-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--contact-line-dark);
}

.page-contact .meta-item {
  display: grid;
  gap: 3px;
  padding: 12px 0;
  border-bottom: 1px solid var(--contact-line-dark);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
}

.page-contact .meta-key {
  color: var(--cyan);
}

.page-contact .meta-val {
  color: var(--cream);
  overflow-wrap: anywhere;
}

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

  .page-contact .matter {
    padding: 20px 22px 24px;
    border-top: 1px solid var(--contact-line);
    border-bottom: 0;
    border-left: 1px solid var(--contact-line);
  }

  .page-contact .matter:nth-child(2n + 1) {
    padding-left: 0;
    border-left: 0;
  }
}

@media (min-width: 860px) {
  .page-contact .channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 0;
  }

  .page-contact .channel {
    padding: 22px 24px 26px;
    border-bottom: 0;
    border-left: 1px solid var(--contact-line);
  }

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

  .page-contact .channel:hover,
  .page-contact .channel:focus-within {
    transform: translateY(-2px);
    border-left-color: var(--orange);
  }

  .page-contact .channel:first-child:hover,
  .page-contact .channel:first-child:focus-within {
    border-left-color: transparent;
  }
}

@media (min-width: 900px) {
  .page-contact .board-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    align-items: end;
  }

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

  .page-contact .response-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  }
}

@media (min-width: 1080px) {
  .page-contact .matter-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .matter:nth-child(2n + 1) {
    padding-left: 22px;
    border-left: 1px solid var(--contact-line);
  }

  .page-contact .matter:nth-child(4n + 1) {
    padding-left: 0;
    border-left: 0;
  }
}

@media (min-width: 820px) {
  .page-contact .meta-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .meta-item {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
    padding: 14px 22px 14px 0;
  }

  .page-contact .meta-item:nth-child(odd) {
    border-right: 1px solid var(--contact-line-dark);
    padding-right: 24px;
  }

  .page-contact .meta-item:nth-last-child(-n + 2) {
    border-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel {
    transition: none;
  }

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