.page-contact {
  --ct-accent: var(--orange);
  --ct-pad: clamp(18px, 2.2vw, 30px);
}

/* ---------- 面包屑 ---------- */
.page-contact .ct-breadcrumb {
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

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

.page-contact .breadcrumb li {
  font-size: 13px;
  color: var(--fg-dim);
  letter-spacing: 0.04em;
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-contact .breadcrumb a {
  color: var(--fg-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .breadcrumb a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding-top: clamp(22px, 3.4vw, 44px);
  padding-bottom: clamp(30px, 4vw, 56px);
  border-bottom: 2px solid var(--line-soft);
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 40px);
  align-items: end;
}

.page-contact .ct-hero__copy h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 5.4vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--fg);
  text-wrap: balance;
}

.page-contact .ct-hero__copy .lede {
  margin-top: 16px;
  max-width: 46ch;
  color: var(--fg-dim);
}

.page-contact .ct-hero__media {
  position: relative;
}

.page-contact .ct-hero__media::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 62px;
  height: 62px;
  border-left: 4px solid var(--orange);
  border-bottom: 4px solid var(--orange);
  pointer-events: none;
}

/* ---------- 联系矩阵 ---------- */
.page-contact .ct-channels {
  margin-top: clamp(30px, 4vw, 52px);
}

.page-contact .ct-channels__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 28px);
  letter-spacing: -0.01em;
  color: var(--fg);
  margin: 0 0 clamp(14px, 1.8vw, 20px);
  padding-left: 14px;
  border-left: 4px solid var(--orange);
}

.page-contact .ct-matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(12px, 1.5vw, 20px);
}

.page-contact .ct-matrix__cell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: var(--ct-pad);
  padding-top: calc(var(--ct-pad) + 6px);
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
  text-decoration: none;
  color: var(--fg);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-contact .ct-matrix__cell::before {
  content: "";
  position: absolute;
  inset: -2px -2px auto -2px;
  height: 5px;
  background: var(--orange);
}

.page-contact .ct-matrix__cell:hover,
.page-contact .ct-matrix__cell:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lift);
  border-color: var(--orange);
}

.page-contact .ct-matrix__key {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--fg-dim);
  font-family: var(--font-mono);
  text-transform: uppercase;
}

.page-contact .ct-matrix__val {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(14px, 1.45vw, 18px);
  line-height: 1.4;
  color: var(--fg);
  overflow-wrap: anywhere;
  border-bottom: 2px solid var(--line);
  padding-bottom: 6px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .ct-matrix__cell:hover .ct-matrix__val,
.page-contact .ct-matrix__cell:focus-visible .ct-matrix__val {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-contact .ct-matrix__cell--phone .ct-matrix__val {
  font-size: clamp(26px, 3.4vw, 38px);
  letter-spacing: -0.01em;
}

.page-contact .ct-matrix__note {
  font-size: 13px;
  color: var(--fg-dim);
  line-height: 1.6;
}

/* ---------- 四条路径 ---------- */
.page-contact .ct-paths__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 1.8vw, 22px);
  margin-top: clamp(24px, 3.2vw, 40px);
}

.page-contact .ct-path {
  --ct-accent: var(--orange);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--ct-pad);
  background: linear-gradient(180deg, var(--band), var(--panel));
  border: 2px solid var(--line);
  border-top: 5px solid var(--ct-accent);
  box-shadow: var(--shadow-hard);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .ct-path:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lift);
}

.page-contact .ct-path--2 { --ct-accent: var(--green); }
.page-contact .ct-path--3 { --ct-accent: var(--gold); }
.page-contact .ct-path--4 { --ct-accent: var(--link); }

.page-contact .ct-path__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 3.2vw, 40px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--ct-accent);
}

.page-contact .ct-path__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(17px, 1.7vw, 20px);
  line-height: 1.35;
  color: var(--fg);
}

.page-contact .ct-path__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--fg-dim);
}

.page-contact .ct-path__acc {
  margin-top: 2px;
  border: 2px solid var(--line);
  background: rgba(6, 11, 24, 0.5);
}

.page-contact .ct-path__acc summary {
  cursor: pointer;
  padding: 10px 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--fg);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.page-contact .ct-path__acc summary::before {
  content: "▸";
  color: var(--ct-accent);
  font-size: 12px;
  transition: transform 180ms var(--ease);
}

.page-contact .ct-path__acc[open] summary::before {
  transform: rotate(90deg);
}

.page-contact .ct-path__acc .acc__body {
  padding: 0 12px 12px 26px;
  font-size: 13px;
}

.page-contact .ct-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-contact .ct-list li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--fg-dim);
}

.page-contact .ct-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 2px;
  background: var(--ct-accent);
}

.page-contact .ct-path__link {
  margin-top: auto;
  padding-top: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ct-accent);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  align-self: flex-start;
  transition: border-color var(--dur) var(--ease);
}

.page-contact .ct-path__link:hover {
  border-bottom-color: var(--ct-accent);
}

/* ---------- 数据纠错 ---------- */
.page-contact .ct-fix {
  background: linear-gradient(180deg, var(--band) 0%, rgba(22, 34, 74, 0) 100%);
}

.page-contact .ct-fix__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 44px);
}

.page-contact .ct-fix__copy h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--fg);
}

.page-contact .ct-fix__copy .lede {
  margin-top: 14px;
  color: var(--fg-dim);
}

.page-contact .ct-fix__fields {
  margin: clamp(20px, 2.4vw, 30px) 0 0;
  display: grid;
  border-top: 2px solid var(--line);
}

.page-contact .ct-fix__fields > div {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3px;
  padding: 13px 0;
  border-bottom: 2px solid var(--line-soft);
}

.page-contact .ct-fix__fields dt {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--fg-dim);
}

.page-contact .ct-fix__fields dd {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  line-height: 1.6;
  color: var(--fg);
  overflow-wrap: anywhere;
}

.page-contact .ct-fix__media {
  position: relative;
}

.page-contact .ct-fix__media::before {
  content: "";
  position: absolute;
  top: -10px;
  right: -10px;
  width: 70px;
  height: 70px;
  border-top: 4px solid var(--gold);
  border-right: 4px solid var(--gold);
  pointer-events: none;
  z-index: 1;
}

/* ---------- 合作洽谈 ---------- */
.page-contact .ct-coop__list {
  margin-top: clamp(22px, 2.8vw, 34px);
  display: grid;
  gap: 12px;
}

.page-contact .ct-coop__list details {
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

.page-contact .ct-coop__list details[open] {
  border-left: 6px solid var(--orange);
}

.page-contact .ct-coop__list summary {
  cursor: pointer;
  padding: clamp(14px, 1.6vw, 20px) clamp(16px, 1.8vw, 24px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--fg);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
}

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

.page-contact .ct-coop__list summary::before {
  content: "▸";
  font-size: 13px;
  color: var(--orange);
  transition: transform 180ms var(--ease);
}

.page-contact .ct-coop__list details[open] summary::before {
  transform: rotate(90deg);
}

.page-contact .ct-coop__list .acc__body {
  padding: 0 clamp(16px, 1.8vw, 24px) clamp(16px, 1.8vw, 22px) calc(clamp(16px, 1.8vw, 24px) + 26px);
}

.page-contact .ct-coop__list .acc__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-dim);
  max-width: 78ch;
}

.page-contact .ct-coop__tags {
  margin-top: clamp(18px, 2.2vw, 26px);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .ct-coop__tags .tag {
  padding: 7px 14px;
  border: 2px solid var(--line);
  font-size: 13px;
  letter-spacing: 0.06em;
}

/* ---------- 地址与备案 ---------- */
.page-contact .ct-desk__box {
  display: grid;
  grid-template-columns: 1fr;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
}

.page-contact .ct-desk__col {
  padding: clamp(22px, 2.8vw, 40px);
}

.page-contact .ct-desk__col + .ct-desk__col {
  border-top: 2px solid var(--line);
}

.page-contact .ct-desk__col--addr {
  background-image: radial-gradient(circle, rgba(76, 141, 255, 0.24) 1px, transparent 1px);
  background-size: 16px 16px;
  background-position: 0 0;
  background-color: rgba(6, 11, 24, 0.6);
}

.page-contact .ct-desk__col h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.2vw, 27px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--fg);
}

.page-contact .ct-desk__col p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-dim);
  max-width: 48ch;
}

.page-contact .ct-desk__addr {
  margin: 18px 0;
  padding-left: 14px;
  border-left: 4px solid var(--orange);
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.6;
  color: var(--fg);
  overflow-wrap: anywhere;
  max-width: none;
}

.page-contact .ct-reg {
  margin: 18px 0 0;
  display: grid;
  gap: 10px;
}

.page-contact .ct-reg > div {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px 18px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line);
}

.page-contact .ct-reg dt {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--fg-dim);
}

.page-contact .ct-reg dd {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  color: var(--fg);
  overflow-wrap: anywhere;
}

.page-contact .ct-desk__note {
  margin-top: 18px;
  font-size: 13px;
  color: var(--fg-dim);
}

.page-contact .ct-desk__note a {
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .ct-desk__note a:hover {
  border-bottom-color: var(--link);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .ct-paths__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-contact .ct-fix__fields > div {
    grid-template-columns: 148px 1fr;
    align-items: baseline;
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
  .page-contact .ct-matrix {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-contact .ct-fix__grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: start;
  }
  .page-contact .ct-desk__box {
    grid-template-columns: 1.1fr 0.9fr;
  }
  .page-contact .ct-desk__col + .ct-desk__col {
    border-top: 0;
    border-left: 2px solid var(--line);
  }
}

@media (min-width: 1100px) {
  .page-contact .ct-paths__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-matrix__cell,
  .page-contact .ct-path,
  .page-contact .ct-path__acc summary::before,
  .page-contact .ct-coop__list summary::before {
    transition: none;
  }
  .page-contact .ct-matrix__cell:hover,
  .page-contact .ct-path:hover {
    transform: none;
  }
}