.page-contact {
  --contact-cut: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  --contact-hair: rgba(6, 16, 27, 0.16);
  background: var(--ink-950);
  color: var(--paper);
  padding-top: clamp(1.25rem, 3vw, 2.5rem);
  padding-bottom: clamp(3rem, 8vw, 7rem);
  overflow-x: clip;
}

.page-contact > section {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: clamp(2.5rem, 5.5vw, 4.75rem);
}

.page-contact .contact-h2 {
  margin: 0.85rem 0 0;
  font-size: clamp(1.55rem, 3.5vw, 2.7rem);
  font-weight: 300;
  line-height: 1.24;
  letter-spacing: -0.025em;
  color: var(--paper);
}

.page-contact .contact-h2,
.page-contact .contact-hero__title {
  text-wrap: balance;
}

/* ---------- 首屏 ---------- */
.contact-hero__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.25rem);
  align-items: start;
}

.contact-hero__kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin: 1.35rem 0 0;
}

.contact-hero__kicker-note {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--paper-dim);
}

.contact-hero__title {
  margin: 1.1rem 0 1.4rem;
  font-size: clamp(2.15rem, 7.4vw, 5.4rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--paper);
}

.contact-hero__mark {
  background: linear-gradient(transparent 70%, rgba(240, 178, 63, 0.42) 70%);
  padding-bottom: 0.06em;
}

.contact-hero__intro {
  max-width: 54ch;
  margin: 0;
  font-size: clamp(0.98rem, 1.4vw, 1.09rem);
  line-height: 1.85;
  color: var(--paper-dim);
}

.contact-hero__quick {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.75rem;
  margin: 1.9rem 0 0;
  padding: 0;
}

.contact-hero__quick a {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(0.82rem, 1.7vw, 1rem);
  letter-spacing: 0.02em;
  color: var(--paper);
  text-decoration: none;
  padding: 0.35rem 0.1rem;
  border-bottom: 2px solid var(--amber);
  word-break: break-all;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.contact-hero__quick-mail:hover,
.contact-hero__quick-mail:focus-visible {
  color: var(--amber);
}

.contact-hero__quick-tel {
  border-bottom-color: var(--celadon);
}

.contact-hero__quick-tel:hover,
.contact-hero__quick-tel:focus-visible {
  color: var(--celadon);
}

.contact-hero__figure {
  margin: 0;
  border: 2px solid var(--line-strong);
  background: var(--ink-900);
  clip-path: var(--contact-cut);
  overflow: hidden;
}

.contact-hero__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 5;
  object-fit: cover;
}

.contact-hero__caption {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  line-height: 1.7;
  letter-spacing: 0.06em;
  color: var(--paper-dim);
  background: var(--ink-900);
  border-top: 1px solid var(--line);
  padding: 0.75rem 1rem;
}

/* ---------- 问题分拣 ---------- */
.contact-router__head {
  max-width: 62ch;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.contact-router__lead {
  margin: 0.9rem 0 0;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--paper-dim);
}

.router-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.router-row {
  display: grid;
  gap: 0.6rem 1.5rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--line);
}

.router-row__num {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.router-row__title {
  margin: 0;
  font-size: 1.06rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.router-row__text {
  margin: 0.4rem 0 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--paper-dim);
}

.router-row__meta {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--paper-dim);
}

.router-row__meta p {
  margin: 0;
}

.router-meta-key {
  display: inline-block;
  min-width: 3.2em;
  margin-right: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--celadon);
}

/* ---------- 三张通道卡 ---------- */
.contact-desk__head {
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.desk-grid {
  display: grid;
  gap: clamp(1rem, 2.4vw, 1.75rem);
}

.desk-rail {
  display: grid;
  gap: clamp(1rem, 2.4vw, 1.75rem);
}

.desk-card {
  position: relative;
  padding: clamp(1.25rem, 3vw, 2.15rem);
  background: var(--ink-900);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-stamp-sm);
}

.desk-card--mail {
  background: var(--paper);
  color: var(--ink-950);
  border-color: var(--ink-950);
  box-shadow: 10px 10px 0 var(--ink-800);
  clip-path: var(--contact-cut);
  padding: clamp(1.4rem, 3.4vw, 2.6rem);
}

.desk-card--phone {
  background: var(--ink-800);
  padding-left: clamp(1.4rem, 3vw, 2.4rem);
}

.desk-card--phone::before,
.desk-card--addr::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
}

.desk-card--phone::before {
  background: var(--amber);
}

.desk-card--addr {
  background: var(--ink-900);
  padding-left: clamp(1.4rem, 3vw, 2.4rem);
}

.desk-card--addr::before {
  background: var(--celadon);
}

.desk-card__tag {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.desk-card--mail .desk-card__tag {
  color: var(--amber-deep);
}

.desk-card__title {
  margin: 0;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  font-weight: 700;
  line-height: 1.45;
  color: inherit;
}

.desk-card__mail {
  display: block;
  margin: 0.85rem 0 1.1rem;
  padding-bottom: 0.55rem;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.6vw, 1.85rem);
  line-height: 1.28;
  letter-spacing: 0.01em;
  color: var(--ink-950);
  text-decoration: none;
  border-bottom: 3px solid var(--amber);
  word-break: break-all;
}

.desk-card__mail:hover,
.desk-card__mail:focus-visible {
  color: var(--amber-deep);
}

.desk-card__tel {
  display: inline-block;
  margin: 0.6rem 0 0.9rem;
  font-family: var(--font-mono);
  font-size: clamp(1.55rem, 4.4vw, 2.35rem);
  letter-spacing: 0.05em;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color 180ms var(--ease);
}

.desk-card__tel:hover,
.desk-card__tel:focus-visible {
  border-bottom-color: var(--amber);
}

.desk-card__note {
  margin: 0 0 1.1rem;
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(6, 16, 27, 0.78);
}

.desk-card__note--dim {
  margin: 0;
  color: var(--paper-dim);
}

.desk-card__facts {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--contact-hair);
}

.desk-card__facts > div {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.35rem 1rem;
}

.desk-card__facts dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: rgba(6, 16, 27, 0.55);
}

.desk-card__facts dd {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  font-weight: 700;
  text-align: right;
  color: var(--ink-950);
}

.desk-card__address {
  margin: 0.6rem 0 0.9rem;
  font-size: clamp(1rem, 2.1vw, 1.18rem);
  line-height: 1.85;
  font-weight: 700;
  color: var(--paper);
}

.desk-steps {
  list-style: none;
  counter-reset: deskstep;
  display: grid;
  gap: 0.7rem;
  margin: 0.4rem 0 0;
  padding: 0;
}

.desk-steps li {
  counter-increment: deskstep;
  display: grid;
  grid-template-columns: 1.9rem 1fr;
  gap: 0.6rem;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--paper-dim);
}

.desk-steps li::before {
  content: counter(deskstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--amber);
  padding-top: 0.28rem;
}

/* ---------- 写信要点 ---------- */
.contact-brief__grid {
  display: grid;
  gap: clamp(1.75rem, 3.5vw, 3rem);
}

.brief-list {
  list-style: none;
  display: grid;
  margin: 1.6rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.brief-list li {
  display: grid;
  gap: 0.3rem;
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--paper-dim);
}

.brief-list li span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--celadon);
}

.contact-brief__hint {
  margin: 1.4rem 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--paper-dim);
}

.contact-brief__hint a {
  color: var(--paper);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--amber);
}

.contact-brief__hint a:hover,
.contact-brief__hint a:focus-visible {
  color: var(--amber);
}

.template-block {
  align-self: start;
  padding: clamp(1.15rem, 2.8vw, 1.8rem);
  background: var(--ink-800);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-stamp-sm);
}

.template-block__label {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.template-block__pre {
  margin: 0 0 1.2rem;
  padding: 1rem;
  background: var(--ink-950);
  border: 1px solid var(--line);
  color: var(--paper-dim);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.95;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}

/* ---------- 备案与服务范围 ---------- */
.contact-meta__grid {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 3rem);
  align-items: center;
}

.contact-meta__figure {
  margin: 0;
  border: 2px solid var(--line-strong);
  background: var(--ink-900);
  overflow: hidden;
}

.contact-meta__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.contact-meta__lead {
  margin: 0.9rem 0 0;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--paper-dim);
}

.meta-facts {
  display: grid;
  margin: 1.5rem 0 0;
  border-top: 1px solid var(--line-strong);
}

.meta-facts > div {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.35rem 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.meta-facts dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--paper-dim);
}

.meta-facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: var(--paper);
  text-align: right;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  margin-top: 1.5rem;
  padding-top: 1.1rem;
  border-top: 1px dashed var(--line-strong);
}

.contact-links a {
  font-size: 0.86rem;
  color: var(--paper-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 0.15rem;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.contact-links a:hover,
.contact-links a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--amber);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .brief-list li {
    grid-template-columns: 6.5rem 1fr;
    align-items: baseline;
    gap: 1rem;
  }
}

@media (min-width: 760px) {
  .router-row {
    grid-template-columns: 3rem minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: start;
    padding: 1.65rem 0;
  }
  .router-row__num {
    padding-top: 0.18rem;
  }
}

@media (min-width: 900px) {
  .contact-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  }
  .contact-brief__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
  .contact-meta__grid {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  }
}

@media (min-width: 960px) {
  .desk-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.85fr);
    align-items: start;
  }
  .desk-rail {
    padding-top: 4.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}
<<<END>>>