.page-contact {
  color: var(--cream);
  padding-bottom: clamp(48px, 7vw, 110px);
}

/* 面包屑 */
.page-contact .crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: clamp(14px, 2.4vw, 24px);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mist);
}
.page-contact .crumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.page-contact .crumbs a:hover,
.page-contact .crumbs a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}
.page-contact .crumbs [aria-current="page"] {
  color: var(--cream);
}

/* 首屏 */
.page-contact .ct-hero {
  position: relative;
  padding: clamp(26px, 4.4vw, 58px) 0 clamp(30px, 5vw, 70px);
}
.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--lime) 0%, rgba(200, 255, 77, 0) 62%);
  opacity: .55;
}
.page-contact .ct-hero h1 {
  margin: 14px 0 0;
  font-family: var(--hei);
  font-weight: 900;
  font-size: clamp(40px, 8.6vw, 100px);
  line-height: .98;
  letter-spacing: -.035em;
  color: var(--cream);
  max-width: 11em;
}
.page-contact .ct-hl {
  color: var(--orange);
}
.page-contact .ct-hero__row {
  margin-top: clamp(22px, 3.2vw, 40px);
  display: grid;
  gap: clamp(20px, 3vw, 44px);
}
.page-contact .ct-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.3vw, 18px);
  line-height: 1.85;
  color: rgba(242, 234, 216, .82);
}
.page-contact .ct-facts {
  margin: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}
.page-contact .ct-facts__i {
  border-top: 1px solid var(--line);
  padding-top: 10px;
}
.page-contact .ct-facts dt {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--mist);
}
.page-contact .ct-facts dd {
  margin: 7px 0 0;
  font-family: var(--mono);
  font-size: clamp(16px, 1.6vw, 21px);
  letter-spacing: -.01em;
  color: var(--lime);
}

@media (min-width: 900px) {
  .page-contact .ct-hero__row {
    grid-template-columns: minmax(0, 1.6fr) minmax(220px, .7fr);
    align-items: start;
  }
}

/* 主体骨架：左索引 + 右内容 */
.page-contact .ct-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
  margin-top: clamp(30px, 5vw, 64px);
}

.page-contact .rail {
  position: static;
  inset: auto;
  width: auto;
  max-width: none;
  z-index: auto;
  padding: 0;
}
.page-contact .rail__label {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--mist);
}
.page-contact .rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}
.page-contact .rail__list::-webkit-scrollbar {
  display: none;
}
.page-contact .rail__list a {
  display: block;
  white-space: nowrap;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
  text-decoration: none;
  transition: color .18s ease, border-color .18s ease, background-color .18s ease;
}
.page-contact .rail__list a:hover,
.page-contact .rail__list a:focus-visible {
  color: var(--lime-hi);
  border-color: var(--lime);
  background: rgba(200, 255, 77, .07);
}
.page-contact .rail__list a[aria-current="true"] {
  color: var(--court);
  background: var(--lime);
  border-color: var(--lime);
}

@media (min-width: 900px) {
  .page-contact .ct-shell {
    grid-template-columns: 166px minmax(0, 1fr);
    gap: clamp(28px, 3.6vw, 60px);
    align-items: start;
  }
  .page-contact .rail {
    position: sticky;
    top: calc(var(--header-h) + 18px);
    align-self: start;
  }
  .page-contact .rail__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-contact .rail__list a {
    white-space: normal;
    padding: 8px 0 8px 12px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: none;
  }
  .page-contact .rail__list a:hover,
  .page-contact .rail__list a:focus-visible {
    background: none;
    border-color: transparent;
    border-left-color: var(--lime);
    color: var(--lime-hi);
  }
  .page-contact .rail__list a[aria-current="true"] {
    background: none;
    border-color: transparent;
    border-left-color: var(--lime);
    color: var(--lime);
  }
}

/* 区块节奏 */
.page-contact .section {
  padding: clamp(34px, 5vw, 66px) 0;
  border-top: 1px solid var(--line-soft);
}
.page-contact .section:first-child {
  border-top: 0;
  padding-top: clamp(6px, 1.4vw, 16px);
}
.page-contact .ct-head {
  margin-bottom: clamp(22px, 3.4vw, 40px);
  max-width: 66ch;
}
.page-contact .ct-head h2 {
  margin: 10px 0 0;
  font-family: var(--hei);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 42px);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--cream);
}
.page-contact .ct-lede {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(242, 234, 216, .72);
  max-width: 62ch;
}

/* 两块联系方式面板 */
.page-contact .ct-channels {
  display: grid;
  gap: var(--gap);
}
@media (min-width: 820px) {
  .page-contact .ct-channels {
    grid-template-columns: 1fr 1fr;
  }
}
.page-contact .ct-card {
  position: relative;
  padding: clamp(22px, 3vw, 34px);
  background: var(--char);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
  transition: transform .2s ease, border-color .2s ease, background-color .2s ease;
}
.page-contact .ct-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--lime);
}
.page-contact .ct-card--tel::before {
  background: var(--orange);
}
.page-contact .ct-card:hover,
.page-contact .ct-card:focus-within {
  transform: translateY(-3px);
  border-color: rgba(242, 234, 216, .3);
  background: #171c1f;
}
.page-contact .ct-card__no {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--mist);
}
.page-contact .ct-card__title {
  margin: 12px 0 0;
  font-family: var(--hei);
  font-weight: 800;
  font-size: clamp(18px, 1.8vw, 22px);
  color: var(--cream);
}
.page-contact .ct-card__val {
  margin: 12px 0 0;
  font-family: var(--mono);
  font-size: clamp(17px, 2vw, 25px);
  line-height: 1.35;
  letter-spacing: -.01em;
  overflow-wrap: anywhere;
  color: var(--lime);
}
.page-contact .ct-card--tel .ct-card__val {
  color: var(--orange);
}
.page-contact .ct-card__desc {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 234, 216, .72);
}
.page-contact .ct-card__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}
.page-contact .ct-card__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(242, 234, 216, .66);
}
.page-contact .ct-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 8px;
  height: 2px;
  background: var(--mist);
}

/* 配图 */
.page-contact .ct-figure {
  margin: clamp(22px, 3.4vw, 38px) 0 0;
}
.page-contact .ct-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--deep);
}
.page-contact .ct-figure__cap {
  margin: 10px 0 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--mist);
}

/* 受理范围 */
.page-contact .ct-scope {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .ct-scope__i {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2.2vw, 32px);
  padding: clamp(18px, 2.6vw, 28px) 0;
  border-top: 1px solid var(--line-soft);
}
.page-contact .ct-scope__i:last-child {
  border-bottom: 1px solid var(--line-soft);
}
.page-contact .ct-scope__no {
  padding-top: 4px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
}
.page-contact .ct-scope__i h3 {
  margin: 0;
  font-family: var(--hei);
  font-weight: 800;
  font-size: clamp(17px, 1.7vw, 21px);
  color: var(--cream);
}
.page-contact .ct-scope__i p {
  margin: 8px 0 0;
  max-width: 74ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 234, 216, .72);
}

/* 来信准备 */
.page-contact .ct-prep {
  display: grid;
  gap: 10px;
}
@media (min-width: 820px) {
  .page-contact .ct-prep {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
}
.page-contact .ct-prep__i {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(242, 234, 216, .025);
  transition: border-color .18s ease, background-color .18s ease;
}
.page-contact .ct-prep__i[open] {
  border-color: rgba(200, 255, 77, .45);
  background: rgba(200, 255, 77, .05);
}
.page-contact .ct-prep__sum {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-family: var(--hei);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--cream);
}
.page-contact .ct-prep__sum::-webkit-details-marker {
  display: none;
}
.page-contact .ct-prep__sum::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--mono);
  font-size: 16px;
  color: var(--mist);
  transition: color .18s ease;
}
.page-contact .ct-prep__i[open] .ct-prep__sum::after {
  content: "–";
  color: var(--lime);
}
.page-contact .ct-prep__sum:focus-visible {
  outline: 2px solid var(--lime-hi);
  outline-offset: -2px;
}
.page-contact .ct-prep__no {
  flex: none;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--lime);
}
.page-contact .ct-prep__i p {
  margin: 0;
  padding: 0 18px 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(242, 234, 216, .72);
}

/* 回复节奏 */
.page-contact .ct-rhythm {
  display: grid;
  gap: clamp(22px, 3.4vw, 44px);
}
@media (min-width: 860px) {
  .page-contact .ct-rhythm {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
  }
}
.page-contact .ct-rhythm__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-contact .ct-rhythm__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 234, 216, .76);
}
.page-contact .ct-rhythm__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 6px;
  height: 6px;
  background: var(--orange);
  transform: rotate(45deg);
}
.page-contact .ct-rhythm__chart {
  padding: clamp(18px, 2.6vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--char);
}
.page-contact .ct-scale {
  display: block;
  width: 100%;
  height: auto;
}
.page-contact .ct-rhythm__cap {
  margin: 14px 0 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  line-height: 1.7;
  color: var(--mist);
}

/* 合作与更正 */
.page-contact .ct-coop {
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
}
@media (min-width: 820px) {
  .page-contact .ct-coop {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.page-contact .ct-coop__i {
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  border-radius: var(--radius);
  background: rgba(42, 33, 28, .28);
}
.page-contact .ct-coop__i h3 {
  margin: 0;
  font-family: var(--hei);
  font-weight: 800;
  font-size: 17px;
  color: var(--cream);
}
.page-contact .ct-coop__i p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(242, 234, 216, .72);
}

/* 通讯地址 */
.page-contact .ct-addr {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}
@media (min-width: 860px) {
  .page-contact .ct-addr {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: center;
  }
}
.page-contact .ct-addr__val {
  margin: 0;
  font-family: var(--hei);
  font-weight: 700;
  font-size: clamp(18px, 2.1vw, 26px);
  line-height: 1.55;
  letter-spacing: -.01em;
  color: var(--cream);
}
.page-contact .ct-addr__note {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 234, 216, .72);
}
.page-contact .ct-addr__icp {
  margin: 20px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mist);
}
.page-contact .ct-map {
  margin: 0;
}
.page-contact .ct-map img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--deep);
}

/* 收尾指引 */
.page-contact .ct-tail {
  margin-top: clamp(30px, 4.6vw, 60px);
  padding-top: clamp(20px, 3vw, 32px);
  border-top: 1px solid var(--line);
  display: grid;
  gap: 12px;
  max-width: 78ch;
}
.page-contact .ct-tail p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 234, 216, .72);
}
.page-contact .ct-tail a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 77, .4);
  transition: color .18s ease, border-color .18s ease;
}
.page-contact .ct-tail a:hover,
.page-contact .ct-tail a:focus-visible {
  color: var(--lime-hi);
  border-bottom-color: var(--lime-hi);
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-card,
  .page-contact .ct-prep__i,
  .page-contact .rail__list a,
  .page-contact .ct-tail a {
    transition: none;
  }
  .page-contact .ct-card:hover,
  .page-contact .ct-card:focus-within {
    transform: none;
  }
}