.page-contact {
  --pc-panel: var(--charcoal-800);
  --pc-line: var(--line-600);
  --pc-cell: var(--ink-raise);
  color: var(--mist-100);
  padding-bottom: var(--space-xl);
}

.page-contact .eyebrow {
  margin: 0;
}

.page-contact h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.45rem, 4.2vw, 2rem);
  line-height: 1.22;
  letter-spacing: -0.005em;
  margin: var(--space-s) 0 0;
  color: var(--mist-100);
  text-wrap: balance;
}

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding-top: var(--space-m);
  font-size: 13px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  border-bottom: 1px solid var(--pc-line);
  background: radial-gradient(120% 92% at 88% 0%, rgba(18, 53, 44, 0.85) 0%, rgba(11, 20, 18, 0) 62%);
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: var(--space-l);
  padding-top: var(--space-l);
  padding-bottom: var(--space-l);
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2rem, 6.6vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.015em;
  margin: var(--space-m) 0 0;
  color: var(--mist-100);
  text-wrap: balance;
}

.page-contact .contact-hero__lede {
  margin: var(--space-m) 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist-dim);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-s);
  margin-top: var(--space-l);
}

.page-contact .contact-hero__facts {
  margin: var(--space-l) 0 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .contact-hero__fact {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-m);
  padding: 11px 0;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .contact-hero__fact dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slate-500);
}

.page-contact .contact-hero__fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--lime-200);
  text-align: right;
  overflow-wrap: anywhere;
}

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

.page-contact .contact-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 通信台 ---------- */
.page-contact .contact-desk {
  padding: var(--space-xl) 0 0;
}

.page-contact .contact-desk__inner {
  display: grid;
  gap: var(--space-xl);
}

.page-contact .ch-stack {
  display: grid;
  gap: var(--space-s);
  margin-top: var(--space-l);
}

.page-contact .ch-card {
  min-width: 0;
  padding: var(--space-m);
  background: var(--pc-panel);
  border: 1px solid var(--pc-line);
  border-radius: var(--radius-m);
  transition: border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}

.page-contact .ch-card:hover {
  border-color: var(--lime-400);
  transform: translateY(-1px);
  box-shadow: var(--shadow-1);
}

.page-contact .ch-card--soft {
  background: linear-gradient(160deg, rgba(18, 53, 44, 0.75) 0%, rgba(21, 24, 26, 0.9) 100%);
}

.page-contact .ch-card__tag {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--slate-500);
}

.page-contact .ch-card__tag::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--lime-400);
  flex: none;
}

.page-contact .ch-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.05rem, 4.4vw, 1.5rem);
  line-height: 1.35;
  color: var(--lime-400);
  overflow-wrap: anywhere;
}

.page-contact .ch-card__value--plain {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(0.98rem, 3.6vw, 1.12rem);
  color: var(--mist-100);
  line-height: 1.6;
}

.page-contact .ch-card__use {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-dim);
}

.page-contact .ch-card__link {
  color: var(--lime-200);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 61, 0.4);
  transition: border-color var(--dur-fast) var(--ease-out);
}

.page-contact .ch-card__link:hover {
  border-bottom-color: var(--lime-400);
}

.page-contact .ch-card__copy {
  margin-top: var(--space-s);
  padding: 6px 12px;
  background: none;
  border: 1px solid var(--pc-line);
  border-radius: var(--radius-s);
  color: var(--mist-dim);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

.page-contact .ch-card__copy:hover {
  color: var(--lime-200);
  border-color: var(--lime-400);
}

.page-contact .ch-card__copy:focus-visible {
  outline: 2px solid var(--lime-400);
  outline-offset: 2px;
}

/* ---------- 场景展开 ---------- */
.page-contact .sc-list {
  margin-top: var(--space-l);
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .sc-item {
  border-top: 1px solid var(--pc-line);
}

.page-contact .sc-item__head {
  display: flex;
  align-items: center;
  gap: var(--space-s);
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

.page-contact .sc-item__head::-webkit-details-marker {
  display: none;
}

.page-contact .sc-item__tag {
  flex: none;
}

.page-contact .sc-item__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1.4;
  color: var(--mist-100);
}

.page-contact .sc-item__cue {
  flex: none;
  margin-left: auto;
  width: 9px;
  height: 9px;
  border-right: 1px solid var(--lime-400);
  border-bottom: 1px solid var(--lime-400);
  transform: rotate(45deg);
  transition: transform var(--dur-fast) var(--ease-out);
}

.page-contact .sc-item[open] .sc-item__cue {
  transform: rotate(225deg);
}

.page-contact .sc-item__body {
  padding: 0 0 var(--space-m);
}

.page-contact .sc-item__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist-dim);
}

.page-contact .sc-item__need {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .sc-item__need li {
  position: relative;
  padding-left: 20px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist-100);
}

.page-contact .sc-item__need li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--lime-400);
  border-radius: 1px;
}

/* ---------- 联系方式带 ---------- */
.page-contact .channel-band {
  margin-top: var(--space-xl);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--pc-line);
  border-bottom: 1px solid var(--pc-line);
  background: linear-gradient(180deg, rgba(18, 53, 44, 0.6) 0%, rgba(11, 20, 18, 0) 72%);
  scroll-margin-top: var(--header-h-compact);
}

.page-contact .channel-band__grid {
  display: grid;
  gap: 1px;
  margin-top: var(--space-l);
  background: var(--pc-line);
  border: 1px solid var(--pc-line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-contact .channel-band__cell {
  min-width: 0;
  padding: var(--space-m);
  background: var(--pc-cell);
}

.page-contact .channel-band__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--slate-500);
}

.page-contact .channel-band__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1rem, 4vw, 1.35rem);
  line-height: 1.4;
  color: var(--lime-400);
  overflow-wrap: anywhere;
}

.page-contact .channel-band__value--plain {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(0.95rem, 3.4vw, 1.05rem);
  line-height: 1.65;
  color: var(--mist-100);
}

.page-contact .channel-band__note {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist-dim);
}

.page-contact .addr-visual {
  position: relative;
  margin-top: var(--space-s);
  border: 1px solid var(--pc-line);
  border-radius: var(--radius-s);
  overflow: hidden;
}

.page-contact .addr-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.6;
}

.page-contact .addr-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(11, 20, 18, 0.15) 0%, rgba(11, 20, 18, 0.9) 100%);
  pointer-events: none;
}

.page-contact .channel-band__foot {
  margin: var(--space-m) 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist-100);
}

/* ---------- 提效清单 ---------- */
.page-contact .contact-speed {
  padding: var(--space-xl) 0 0;
}

.page-contact .contact-speed__lede {
  margin: var(--space-m) 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist-dim);
}

.page-contact .speed-list {
  list-style: none;
  margin: var(--space-l) 0 0;
  padding: 0;
  max-width: 880px;
}

.page-contact .speed-item {
  position: relative;
  padding: var(--space-m) 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .speed-item:last-child {
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .speed-item__check {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-contact .speed-item__head {
  display: flex;
  align-items: center;
  gap: var(--space-s);
  cursor: pointer;
}

.page-contact .speed-item__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--slate-500);
}

.page-contact .speed-item__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--mist-100);
}

.page-contact .speed-item__box {
  flex: none;
  margin-left: auto;
  width: 14px;
  height: 14px;
  border: 1px solid var(--pc-line);
  border-radius: 1px;
  background: transparent;
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

.page-contact .speed-item__text {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-dim);
}

.page-contact .speed-bar {
  display: block;
  position: relative;
  height: 2px;
  margin-top: 14px;
  background: var(--pc-line);
  overflow: hidden;
}

.page-contact .speed-bar::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--lime-400);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur-mid) var(--ease-out);
}

.page-contact .speed-item__check:checked ~ .speed-item__head .speed-item__box {
  background: var(--lime-400);
  border-color: var(--lime-400);
}

.page-contact .speed-item__check:checked ~ .speed-bar::after {
  transform: scaleX(1);
}

.page-contact .speed-item__check:focus-visible ~ .speed-item__head {
  outline: 2px solid var(--lime-400);
  outline-offset: 4px;
}

/* ---------- 合作 ---------- */
.page-contact .contact-coop {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--pc-line);
  scroll-margin-top: var(--header-h-compact);
}

.page-contact .contact-coop__lede {
  margin: var(--space-m) 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist-dim);
}

.page-contact .coop-grid {
  display: grid;
  gap: var(--space-s);
  margin-top: var(--space-l);
}

.page-contact .coop-card {
  min-width: 0;
  padding: var(--space-m);
  background: var(--pc-panel);
  border: 1px solid var(--pc-line);
  border-radius: var(--radius-m);
  transition: border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}

.page-contact .coop-card:hover {
  border-color: var(--lime-400);
  transform: translateY(-1px);
  box-shadow: var(--shadow-1);
}

.page-contact .coop-card__metric {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 2.2rem;
  line-height: 1;
  color: var(--lime-400);
}

.page-contact .coop-card__metric span {
  margin-left: 5px;
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--slate-500);
}

.page-contact .coop-card__name {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--mist-100);
}

.page-contact .coop-card__text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-dim);
}

.page-contact .contact-coop__ask {
  display: grid;
  gap: var(--space-m);
  margin-top: var(--space-l);
  padding-top: var(--space-m);
  border-top: 1px solid var(--pc-line);
}

.page-contact .contact-coop__ask p {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist-dim);
}

.page-contact .contact-coop__ask a:not(.btn) {
  color: var(--lime-200);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 61, 0.4);
}

.page-contact .contact-coop__ask a:not(.btn):hover {
  border-bottom-color: var(--lime-400);
}

/* ---------- 自助入口 ---------- */
.page-contact .selfserve {
  margin-top: var(--space-xl);
  border-top: 1px solid var(--pc-line);
  background: linear-gradient(135deg, rgba(18, 53, 44, 0.9) 0%, rgba(11, 20, 18, 0.6) 100%);
}

.page-contact .selfserve__inner {
  display: grid;
  gap: var(--space-l);
  padding-top: var(--space-l);
  padding-bottom: var(--space-l);
}

.page-contact .selfserve__copy p:not(.eyebrow) {
  margin: var(--space-m) 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist-dim);
}

.page-contact .selfserve__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--pc-line);
  border: 1px solid var(--pc-line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-contact .selfserve__list li {
  background: var(--pc-cell);
}

.page-contact .selfserve__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 15px var(--space-m);
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist-100);
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

.page-contact .selfserve__list a::before {
  content: "\2192";
  flex: none;
  font-family: var(--font-mono);
  color: var(--lime-400);
}

.page-contact .selfserve__list a:hover {
  background: rgba(198, 255, 61, 0.08);
  color: var(--lime-200);
}

.page-contact .selfserve__list a:focus-visible {
  outline: 2px solid var(--lime-400);
  outline-offset: -2px;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .channel-band__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
    gap: var(--space-xl);
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
  }

  .page-contact .contact-desk__inner {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: var(--space-xl);
    align-items: start;
  }

  .page-contact .selfserve__inner {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
    gap: var(--space-xl);
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
  }

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

@media (min-width: 1180px) {
  .page-contact .contact-hero h1 {
    font-size: 3.75rem;
  }

  .page-contact .ch-card {
    padding: var(--space-l) var(--space-m);
  }
}
<<<END>>>