.page-contact {
  --pc-pad: clamp(44px, 7vw, 86px);
  --pc-gap: clamp(20px, 3.4vw, 34px);
  --pc-line: rgba(244, 241, 232, 0.16);
  --pc-line-ink: rgba(11, 21, 17, 0.16);
  display: block;
}

.page-contact img {
  max-width: 100%;
  height: auto;
}

.page-contact .breadcrumb {
  padding: 18px 0 4px;
}

/* ---------- Hero ---------- */

.page-contact .contact-hero {
  padding-bottom: var(--pc-pad);
  background-image:
    linear-gradient(to right, rgba(244, 241, 232, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(244, 241, 232, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: center top;
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact h1 {
  margin: 12px 0 18px;
  max-width: 15em;
  font-size: clamp(1.9rem, 6.2vw, 3.3rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--text-on-dark);
}

.page-contact .contact-hero__lede {
  margin: 0;
  max-width: 54ch;
  font-size: clamp(1rem, 1.5vw, 1.0625rem);
  line-height: 1.8;
  color: var(--text-muted);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .contact-hero__facts {
  display: grid;
  gap: 10px;
  margin: 28px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--pc-line);
}

.page-contact .contact-hero__facts div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
}

.page-contact .contact-hero__facts dt {
  font-family: var(--font-mono);
  font-size: var(--fs-ann);
  letter-spacing: 0.12em;
  color: var(--c-sand);
}

.page-contact .contact-hero__facts dd {
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--text-on-dark);
}

.page-contact .contact-hero__media,
.page-contact .contact-routes__figure {
  margin: 0;
  overflow: hidden;
}

.page-contact .contact-hero__media {
  border: 1px solid var(--pc-line);
  background: var(--c-green-900);
}

.page-contact .media-frame img {
  display: block;
  width: 100%;
  object-fit: cover;
}

/* ---------- 章节标题通用 ---------- */

.page-contact .contact-channels__head,
.page-contact .contact-routes__head,
.page-contact .contact-process__head,
.page-contact .contact-tips__head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-contact h2 {
  margin: 10px 0 12px;
  font-size: clamp(1.45rem, 4.2vw, 2.25rem);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--text-on-dark);
}

.page-contact .contact-channels__intro,
.page-contact .contact-routes__intro,
.page-contact .contact-process__intro {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--text-muted);
}

/* ---------- 官方联系渠道 ---------- */

.page-contact .contact-channels {
  padding-bottom: var(--pc-pad);
}

.page-contact .channel-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3.6vw, 34px);
  border: 1px solid var(--pc-line);
  background: var(--c-green-900);
}

.page-contact .channel-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(244, 241, 232, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(244, 241, 232, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}

.page-contact .channel-panel > * {
  position: relative;
}

.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .channel-item {
  display: grid;
  grid-template-columns: 3.4em minmax(0, 1fr);
  gap: 6px 14px;
  padding: 18px 0;
  border-top: 1px solid var(--pc-line);
}

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

.page-contact .channel-item__tag {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: var(--fs-ann);
  letter-spacing: 0.14em;
  color: var(--c-sand);
}

.page-contact .channel-item__label {
  margin: 0 0 4px;
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.page-contact .channel-item__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.6vw, 1.2rem);
  line-height: 1.5;
  color: var(--c-fog);
  word-break: break-word;
  -webkit-user-select: all;
  user-select: all;
}

.page-contact .channel-item--address .channel-item__value {
  font-family: var(--font-body);
  font-weight: 500;
  letter-spacing: 0.01em;
}

.page-contact .channel-item__note {
  margin: 8px 0 0;
  font-size: var(--fs-sm);
  line-height: 1.72;
  color: var(--text-muted);
}

/* ---------- 咨询分流 ---------- */

.page-contact .contact-routes {
  padding: var(--pc-pad) 0;
  background: var(--c-mist);
  color: var(--c-ink);
}

.page-contact .contact-routes .eyebrow {
  color: var(--c-green-700);
}

.page-contact .contact-routes h2 {
  color: var(--c-ink);
}

.page-contact .contact-routes__intro {
  color: rgba(11, 21, 17, 0.72);
}

.page-contact .route-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid var(--pc-line-ink);
  background: var(--pc-line-ink);
}

.page-contact .route-card {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: clamp(18px, 3vw, 26px);
  background: var(--c-fog);
}

.page-contact .route-card__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-ann);
  letter-spacing: 0.16em;
  color: var(--c-green-700);
}

.page-contact .route-card__title {
  margin: 0;
  font-size: clamp(1.05rem, 2.4vw, 1.2rem);
  line-height: 1.42;
  color: var(--c-ink);
}

.page-contact .route-card__text {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.78;
  color: rgba(11, 21, 17, 0.78);
}

.page-contact .route-card__to {
  margin: 4px 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--pc-line-ink);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--c-green-700);
  word-break: break-word;
  -webkit-user-select: all;
  user-select: all;
}

.page-contact .route-card__details {
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px dashed var(--pc-line-ink);
}

.page-contact .route-card__details summary {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding-bottom: 2px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--c-green-700);
  border-bottom: 1px dotted currentColor;
}

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

.page-contact .route-card__details summary::after {
  content: "+";
  font-size: 0.9rem;
  line-height: 1;
}

.page-contact .route-card__details[open] summary::after {
  content: "–";
}

.page-contact .route-card__details summary:focus-visible {
  outline: 2px solid var(--c-green-500);
  outline-offset: 3px;
}

.page-contact .route-card__details p {
  margin: 10px 0 0;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--c-ink);
  background: var(--c-mist);
  border-left: 2px solid var(--c-sand);
}

.page-contact .contact-routes__figure {
  margin-top: clamp(24px, 4vw, 38px);
  border: 1px solid var(--pc-line-ink);
  background: var(--c-fog);
}

.page-contact .contact-routes__figure .media-frame__caption {
  color: rgba(11, 21, 17, 0.6);
}

/* ---------- 合作流程 ---------- */

.page-contact .contact-process {
  padding: var(--pc-pad) 0;
  background: var(--c-night);
}

.page-contact .process-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .process-step {
  position: relative;
  padding: 0 0 26px 30px;
  border-left: 1px solid var(--pc-line);
}

.page-contact .process-step:last-child {
  padding-bottom: 0;
}

.page-contact .process-step::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 6px;
  width: 7px;
  height: 7px;
  background: var(--c-sand);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .process-step:hover::before,
.page-contact .process-step:focus-visible::before {
  background: var(--c-red);
  box-shadow: 0 0 0 4px rgba(196, 71, 61, 0.2);
}

.page-contact .process-step:focus-visible {
  outline: 1px solid var(--c-sand);
  outline-offset: 6px;
}

.page-contact .process-step__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-ann);
  letter-spacing: 0.16em;
  color: var(--c-sand);
}

.page-contact .process-step__title {
  margin: 6px 0 8px;
  font-size: clamp(1.05rem, 2.4vw, 1.2rem);
  color: var(--text-on-dark);
}

.page-contact .process-step__text {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.78;
  color: var(--text-muted);
}

/* ---------- 回复时间与服务范围 ---------- */

.page-contact .contact-response {
  padding: var(--pc-pad) 0;
  background: var(--c-green-900);
  border-top: 1px solid var(--pc-line);
}

.page-contact .contact-response__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact .contact-response__text {
  margin: 0;
  max-width: 48ch;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--text-muted);
}

.page-contact .response-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin: 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .response-item {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .response-item dt {
  font-family: var(--font-mono);
  font-size: var(--fs-ann);
  letter-spacing: 0.12em;
  color: var(--c-sand);
}

.page-contact .response-item dd {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--text-on-dark);
}

/* ---------- 纠错与资料咨询提示 ---------- */

.page-contact .contact-tips {
  padding: var(--pc-pad) 0 calc(var(--pc-pad) * 0.85);
}

.page-contact .tips-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.4vw, 24px);
}

.page-contact .tips-panel {
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--pc-line);
  background: var(--c-green-900);
}

.page-contact .tips-panel h3 {
  margin: 0 0 14px;
  font-size: 1.05rem;
  color: var(--text-on-dark);
}

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

.page-contact .tips-panel li {
  position: relative;
  padding-left: 18px;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--text-muted);
}

.page-contact .tips-panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 1px;
  background: var(--c-sand);
}

.page-contact .contact-tips__links {
  margin: clamp(22px, 3.4vw, 32px) 0 0;
  padding-top: 18px;
  max-width: 74ch;
  border-top: 1px solid var(--pc-line);
  font-size: var(--fs-sm);
  line-height: 1.95;
  color: var(--text-muted);
}

.page-contact .contact-tips__links a {
  color: var(--c-sand);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 164, 92, 0.5);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .contact-tips__links a:hover,
.page-contact .contact-tips__links a:focus-visible {
  color: var(--c-fog);
  border-color: var(--c-fog);
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-contact .response-item {
    grid-template-columns: 7.5em minmax(0, 1fr);
    gap: 0 18px;
    align-items: baseline;
  }
}

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

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

  .page-contact .contact-routes__figure {
    max-width: 760px;
  }
}

@media (min-width: 880px) {
  .page-contact .process-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 clamp(16px, 2.4vw, 28px);
    border-top: 1px solid var(--pc-line);
  }

  .page-contact .process-step {
    padding: 30px 0 0;
    border-left: 0;
  }

  .page-contact .process-step:last-child {
    padding-bottom: 0;
  }

  .page-contact .process-step::before {
    left: 0;
    top: -4px;
  }

  .page-contact .contact-response__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(28px, 4vw, 54px);
  }
}

@media (min-width: 940px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(28px, 4vw, 56px);
  }
}

@media (min-width: 1060px) {
  .page-contact .channel-item {
    grid-template-columns: 4.5em minmax(0, 1fr);
    gap: 6px 24px;
  }
}
<<<END>>>