.page-contact {
  --contact-cut: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-contact .breadcrumb {
  margin-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: clamp(24px, 4.4vw, 46px) 0 clamp(26px, 4vw, 42px);
  border-bottom: 1px solid var(--slate);
}

.page-contact .contact-hero .kicker {
  display: block;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  max-width: 20ch;
  font-size: clamp(30px, 6.2vw, 60px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-hero__lead {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-contact .contact-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

/* ---------- 通用分区节奏 ---------- */
.page-contact .section {
  padding-block: clamp(38px, 5.6vw, 70px);
}

.page-contact .section--tight {
  padding-block: clamp(28px, 4vw, 48px);
}

.page-contact .section-head {
  max-width: 66ch;
}

.page-contact .section-head__title {
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .section-head__note {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 联系渠道 ---------- */
.page-contact .channels-media {
  margin-bottom: clamp(26px, 3.6vw, 40px);
}

.page-contact .channel-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .channel {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 20px 18px 22px;
  background-color: var(--hull);
  background-image: linear-gradient(160deg, rgba(34, 224, 214, 0.06), transparent 62%);
  clip-path: var(--contact-cut);
  border-left: 3px solid var(--slate);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.page-contact .channel--mail {
  border-left-color: var(--cyan);
}

.page-contact .channel--tel {
  border-left-color: var(--orange);
}

.page-contact .channel--addr {
  border-left-color: var(--amber);
}

.page-contact .channel__role {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-contact .channel__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .channel__value {
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.6vw, 21px);
  font-weight: 600;
  line-height: 1.36;
  letter-spacing: -0.01em;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .channel--tel .channel__value {
  color: var(--orange);
}

.page-contact .channel--addr .channel__value {
  color: var(--paper);
}

.page-contact .channel__value--text {
  font-family: var(--font-sans);
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.7;
  letter-spacing: 0;
}

.page-contact .channel__note {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--paper-dim);
}

.page-contact .channel__hint {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--slate);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 服务时间刻度 ---------- */
.page-contact .hours-scale {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: clamp(24px, 3.4vw, 34px) 0 clamp(18px, 2.6vw, 26px);
}

.page-contact .hours-scale__cap {
  font-size: 13px;
  font-weight: 600;
  color: var(--ice);
  letter-spacing: 0.02em;
}

.page-contact .hours-scale__track {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 20px;
  background: linear-gradient(var(--slate), var(--slate)) center / 100% 1px no-repeat;
}

.page-contact .hours-scale__track i {
  display: block;
  width: 2px;
  height: 13px;
  background: var(--cyan);
}

.page-contact .hours-scale__track i:first-child,
.page-contact .hours-scale__track i:last-child {
  height: 20px;
}

.page-contact .hours-notes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .hours-note {
  display: grid;
  grid-template-columns: 1fr;
  gap: 5px;
  padding: 15px 0;
  border-bottom: 1px solid var(--slate);
}

.page-contact .hours-note:first-child {
  border-top: 1px solid var(--slate);
}

.page-contact .hours-note__key {
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-contact .hours-note__text {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper-dim);
}

/* ---------- 准备清单 ---------- */
.page-contact .checklist {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  background-color: var(--hull);
  border-left: 3px solid var(--slate);
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.page-contact .checklist__item:has(.checklist__box:checked) {
  border-left-color: var(--cyan);
  background-color: #102b41;
}

.page-contact .checklist__box {
  appearance: none;
  -webkit-appearance: none;
  display: grid;
  place-content: center;
  width: 22px;
  height: 22px;
  margin: 3px 0 0;
  padding: 0;
  border: 1.5px solid var(--mist);
  background: transparent;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.page-contact .checklist__box:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .checklist__box:checked {
  border-color: var(--cyan);
  background-color: var(--cyan);
}

.page-contact .checklist__box:checked::after {
  content: "";
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: translateY(-1px) rotate(45deg);
}

.page-contact .checklist__body {
  display: grid;
  gap: 4px;
  cursor: pointer;
}

.page-contact .checklist__num {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-contact .checklist__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .checklist__note {
  font-size: 14px;
  line-height: 1.76;
  color: var(--paper-dim);
}

.page-contact .checklist__ready {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0 0;
  font-size: 13.5px;
  color: var(--green);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.page-contact .checklist:not(:has(.checklist__box:not(:checked))) + .checklist__ready {
  opacity: 1;
  transform: none;
}

.page-contact .prepare-link {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .prepare-link a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 214, 0.4);
}

/* ---------- 纠错与合作 ---------- */
.page-contact .split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .split__item {
  padding: 24px 20px 26px;
}

.page-contact .split__title {
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .split__text {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-contact .split__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .split__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--paper-dim);
}

.page-contact .split__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background-color: var(--amber);
}

.page-contact .split__foot {
  margin: 18px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--slate);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .split__foot a {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(127, 233, 255, 0.4);
}

/* ---------- 地址与来访 ---------- */
.page-contact .visit-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .address-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 20px;
  background-color: var(--hull);
  background-image:
    linear-gradient(to right, rgba(34, 224, 214, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(34, 224, 214, 0.08) 1px, transparent 1px);
  background-size: 8px 8px;
  clip-path: var(--cut-tr);
  border-left: 3px solid var(--ice);
}

.page-contact .address-block__label {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ice);
}

.page-contact .address-block__text {
  font-size: clamp(16px, 2.2vw, 19px);
  font-weight: 700;
  line-height: 1.62;
  color: var(--paper);
}

.page-contact .address-block__note {
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--paper-dim);
}

.page-contact .address-block__btn {
  align-self: flex-start;
  margin-top: 4px;
}

.page-contact .visit-media {
  min-height: 220px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 580px) {
  .page-contact .hours-note {
    grid-template-columns: 110px 1fr;
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 820px) {
  .page-contact .channel-row {
    grid-template-columns: repeat(12, 1fr);
    gap: 14px;
  }

  .page-contact .channel--mail {
    grid-column: span 5;
  }

  .page-contact .channel--tel {
    grid-column: span 3;
  }

  .page-contact .channel--addr {
    grid-column: span 4;
  }

  .page-contact .split {
    grid-template-columns: 1.12fr 0.88fr;
    gap: 14px;
  }

  .page-contact .visit-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    align-items: stretch;
  }

  .page-contact .address-block {
    padding: 30px 26px;
  }
}

@media (min-width: 1080px) {
  .page-contact .checklist__item {
    grid-template-columns: 26px 1fr;
    gap: 18px;
    padding: 18px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .checklist__item,
  .page-contact .checklist__box,
  .page-contact .checklist__ready {
    transition: none;
  }

  .page-contact .checklist__ready {
    transform: none;
  }
}
<<<END>>>
```