.page-contact {
  --contact-gap: clamp(1.25rem, 3vw, 2.25rem);
  background: var(--bg);
  color: var(--fg);
  padding-bottom: clamp(3rem, 8vw, 5rem);
  overflow-x: clip;
}

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

/* 首屏：左叙事右状态面板 */
.page-contact .contact-hero {
  padding-top: clamp(1.25rem, 4vw, 2.25rem);
}

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

.page-contact .contact-hero__copy h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.95rem, 7.2vw, 3.5rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0.6rem 0 0;
  text-wrap: balance;
}

.page-contact .contact-hero__lede {
  margin: 1.1rem 0 0;
  max-width: 46ch;
  font-size: var(--step-2);
  line-height: 1.78;
  color: var(--fg-muted);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.page-contact .contact-status {
  position: relative;
  padding: clamp(1.1rem, 3vw, 1.75rem);
  border-left: 3px solid var(--accent);
  overflow: hidden;
}

.page-contact .contact-status::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(115% 78% at 100% 0%, rgba(198, 255, 61, 0.16), transparent 62%);
  pointer-events: none;
}

.page-contact .contact-status__head {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line-strong);
}

.page-contact .contact-status__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg);
}

.page-contact .contact-status__dot {
  width: 9px;
  height: 9px;
  flex: none;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(198, 255, 61, 0.16);
  animation: contact-pulse 2.6s ease-in-out infinite;
}

@keyframes contact-pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(198, 255, 61, 0.16); }
  50% { box-shadow: 0 0 0 8px rgba(198, 255, 61, 0.05); }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-status__dot { animation: none; }
}

.page-contact .contact-status__rows {
  position: relative;
  list-style: none;
  margin: 0.85rem 0 0;
  padding: 0;
}

.page-contact .contact-status__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.2rem 1rem;
  padding: 0.72rem 0;
  border-bottom: 1px dashed var(--line);
}

.page-contact .contact-status__label {
  font-size: var(--step-1);
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}

.page-contact .contact-status__value {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  color: var(--fg);
}

.page-contact .contact-status__value--lime {
  color: var(--accent);
}

.page-contact .contact-status__note {
  position: relative;
  margin: 1rem 0 0;
  font-size: var(--step-0);
  line-height: 1.8;
  color: var(--fg-dim);
}

/* 联系渠道 */
.page-contact .channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  align-items: start;
}

.page-contact .channels__figure {
  border: 1px solid var(--line-strong);
  margin: 0;
}

.page-contact .channels__list {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
}

.page-contact .channel {
  padding: 1.15rem 0;
  border-top: 1px solid var(--line);
}

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

.page-contact .channel__key {
  margin: 0;
  font-size: var(--step-0);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

.page-contact .channel__value {
  margin: 0.35rem 0 0;
  font-size: var(--step-3);
  font-weight: 700;
  line-height: 1.35;
  color: var(--fg);
  word-break: break-word;
}

.page-contact .channel__note {
  margin: 0.5rem 0 0;
  font-size: var(--step-1);
  line-height: 1.75;
  color: var(--fg-muted);
}

/* 提交清单 */
.page-contact .checklist__lede {
  margin: 0.9rem 0 1.5rem;
  max-width: 62ch;
  font-size: var(--step-2);
  line-height: 1.78;
  color: var(--fg-muted);
}

.page-contact .checklist__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line-strong);
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  padding: clamp(1rem, 2.6vw, 1.5rem) 0;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(30, 58, 50, 0.34), transparent 88%);
}

.page-contact .checklist__no {
  font-family: var(--font-mono);
  font-size: var(--step-0);
  letter-spacing: 0.1em;
  color: var(--accent);
  padding-top: 0.25rem;
}

.page-contact .checklist__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-3);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-contact .checklist__text {
  margin: 0.4rem 0 0;
  font-size: var(--step-1);
  line-height: 1.78;
  color: var(--fg-muted);
}

.page-contact .checklist__submit {
  margin-top: clamp(1.25rem, 3vw, 1.9rem);
  border: 1px solid var(--line-strong);
  background: var(--bg-glass);
}

.page-contact .checklist__submit > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: var(--step-1);
  letter-spacing: 0.06em;
  color: var(--fg);
}

.page-contact .checklist__submit > summary::-webkit-details-marker {
  display: none;
}

.page-contact .checklist__submit > summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--accent);
}

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

.page-contact .checklist__submit-body {
  padding: 0 1.15rem 1.15rem;
  border-top: 1px dashed var(--line);
}

.page-contact .checklist__submit-body p {
  margin: 0.9rem 0 0;
  font-size: var(--step-1);
  line-height: 1.8;
  color: var(--fg-muted);
}

/* 纠错与合作 */
.page-contact .coop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

.page-contact .coop__block {
  padding: clamp(1.2rem, 3vw, 1.9rem);
  border-top: 2px solid var(--accent);
  background: linear-gradient(158deg, rgba(30, 58, 50, 0.56), rgba(17, 22, 20, 0.24));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-contact .coop__block--clay {
  border-top-color: var(--c-clay);
}

.page-contact .coop__block p {
  margin: 0.8rem 0 0;
  font-size: var(--step-1);
  line-height: 1.8;
  color: var(--fg-muted);
}

.page-contact .coop__stat {
  font-family: var(--font-body);
  font-size: var(--step-1);
  color: var(--fg) !important;
  padding-top: 0.8rem;
  border-top: 1px dashed var(--line-strong);
}

.page-contact .coop__stat .num {
  font-size: var(--step-3);
  font-weight: 700;
  color: var(--accent);
}

/* 回复节奏 */
.page-contact .reply__track {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--line-strong);
}

.page-contact .reply__item {
  position: relative;
  padding: 1.15rem 0 1.35rem;
  border-bottom: 1px solid var(--line);
}

.page-contact .reply__item::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 26px;
  height: 3px;
  background: var(--accent);
}

.page-contact .reply__time {
  margin: 0;
  font-size: var(--step-0);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.page-contact .reply__what {
  margin: 0.5rem 0 0;
  font-size: var(--step-1);
  line-height: 1.78;
  color: var(--fg-muted);
  max-width: 34ch;
}

/* 服务地区 */
.page-contact .region__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  align-items: center;
}

.page-contact .region__body p {
  margin: 0.9rem 0 0;
  font-size: var(--step-1);
  line-height: 1.8;
  color: var(--fg-muted);
  max-width: 56ch;
}

.page-contact .region__links {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-contact .region__links li {
  position: relative;
  padding-left: 1.15rem;
}

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

.page-contact .region__links a {
  color: var(--fg);
  font-size: var(--step-1);
  line-height: 1.7;
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-contact .region__links a:hover,
.page-contact .region__links a:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.page-contact .region__figure {
  margin: 0;
  border: 1px solid var(--line-strong);
}

/* 平板与桌面 */
@media (min-width: 760px) {
  .page-contact .checklist__list {
    grid-template-columns: 1fr 1fr;
    column-gap: clamp(1.5rem, 4vw, 3rem);
  }

  .page-contact .reply__track {
    grid-template-columns: repeat(2, 1fr);
    column-gap: clamp(1.5rem, 4vw, 2.5rem);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 1.12fr 0.88fr;
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-contact .channels__grid {
    grid-template-columns: 0.82fr 1.18fr;
    gap: clamp(2rem, 4vw, 3.25rem);
  }

  .page-contact .coop__grid {
    grid-template-columns: 1fr 1fr;
    gap: clamp(1.5rem, 3.5vw, 2.75rem);
  }

  .page-contact .region__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: clamp(2rem, 4vw, 3.25rem);
  }
}

@media (min-width: 1080px) {
  .page-contact .reply__track {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact .reply__item {
    padding-inline: clamp(1rem, 2vw, 1.6rem);
    border-left: 1px solid var(--line);
  }

  .page-contact .reply__item:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .page-contact .reply__item:first-child::before {
    left: 0;
  }
}
<<<END>>>