.page-contact {
  padding-bottom: clamp(56px, 9vw, 110px);
  color: var(--ng-text);
  overflow-x: hidden;
}

.page-contact .page-contact__head {
  max-width: 780px;
  padding-top: clamp(24px, 4vw, 48px);
  padding-bottom: clamp(28px, 5vw, 52px);
}

.page-contact .page-contact__eyebrow {
  margin: 0 0 14px;
  color: var(--ng-violet);
  font-family: var(--ng-font-mono);
  letter-spacing: 0.18em;
}

.page-contact .page-contact__title {
  margin: 0 0 18px;
  font-family: var(--ng-font-display);
  font-size: clamp(2.1rem, 7vw, 3.5rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.page-contact .page-contact__lede {
  margin: 0 0 22px;
  max-width: 42ch;
  color: var(--ng-muted);
  font-size: clamp(1rem, 2.6vw, 1.125rem);
  line-height: 1.78;
}

.page-contact .page-contact__meta {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--ng-line);
  color: var(--ng-orange);
  font-family: var(--ng-font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  line-height: 1.7;
}

/* 章节通用 */
.page-contact .page-contact__section {
  margin-bottom: clamp(40px, 7vw, 84px);
}

.page-contact .page-contact__h2 {
  margin: 0 0 14px;
  font-family: var(--ng-font-display);
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.015em;
}

.page-contact .page-contact__intro {
  margin: 0 0 clamp(22px, 3.4vw, 34px);
  max-width: 46ch;
  color: var(--ng-muted);
  font-size: 0.9375rem;
  line-height: 1.78;
}

/* 主图 */
.page-contact .page-contact__figure {
  position: relative;
  margin: 0;
  background: var(--ng-slab);
  border: 1px solid var(--ng-line);
  clip-path: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px);
  overflow: hidden;
}

.page-contact .page-contact__figure-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.06) brightness(0.92);
}

.page-contact .page-contact__figure-cap {
  position: absolute;
  left: 0;
  bottom: 0;
  margin: 0;
  padding: 9px 16px;
  background: rgba(11, 15, 26, 0.86);
  color: var(--ng-muted);
  font-family: var(--ng-font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
}

/* 渠道卡片 */
.page-contact .page-contact__channels {
  display: grid;
  gap: clamp(14px, 2.4vw, 20px);
}

.page-contact .page-contact__channel {
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  align-items: start;
  padding: clamp(18px, 3.2vw, 28px);
  background: var(--ng-slab);
  border: 1px solid var(--ng-line);
  border-left-width: 3px;
  clip-path: polygon(18px 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%, 0 18px);
  transition: border-color var(--ng-t) var(--ng-ease), background-color var(--ng-t) var(--ng-ease);
}

.page-contact .page-contact__channel:hover,
.page-contact .page-contact__channel:focus-within {
  border-color: var(--ng-teal);
  border-left-color: var(--ng-teal);
  background: #162031;
}

.page-contact .page-contact__channel-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: var(--ng-teal);
  background: rgba(34, 224, 200, 0.07);
  border: 1px solid var(--ng-line);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

.page-contact .page-contact__channel-icon svg {
  display: block;
  width: 22px;
  height: 22px;
}

.page-contact .page-contact__channel-label {
  margin: 0 0 8px;
  color: var(--ng-muted);
  font-family: var(--ng-font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
}

.page-contact .page-contact__channel-value {
  margin: 0 0 10px;
  font-family: var(--ng-font-display);
  font-size: clamp(1.05rem, 3.6vw, 1.35rem);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.005em;
  word-break: break-word;
}

.page-contact .page-contact__channel-value.ng-num {
  font-family: var(--ng-font-mono);
  letter-spacing: 0.02em;
}

.page-contact .page-contact__channel-note {
  margin: 0;
  max-width: 52ch;
  color: var(--ng-muted);
  font-size: 0.9375rem;
  line-height: 1.78;
}

/* 轮值刻度尺 */
.page-contact .page-contact__scale {
  padding: clamp(20px, 3.4vw, 30px);
  background: linear-gradient(180deg, rgba(20, 28, 43, 0.9), rgba(11, 15, 26, 0.2));
  border-top: 1px solid var(--ng-line);
  border-bottom: 1px solid var(--ng-line);
}

.page-contact .page-contact__scale-track {
  position: relative;
  height: 16px;
  background-color: var(--ng-line);
  background-image: repeating-linear-gradient(
    90deg,
    transparent 0,
    transparent calc(100% / 24 - 1px),
    rgba(11, 15, 26, 0.75) calc(100% / 24 - 1px),
    rgba(11, 15, 26, 0.75) calc(100% / 24)
  );
  clip-path: polygon(5px 0, 100% 0, 100% 100%, 0 100%, 0 5px);
  overflow: hidden;
}

.page-contact .page-contact__scale-fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 37.5%;
  background: linear-gradient(90deg, rgba(255, 138, 61, 0.45), var(--ng-orange));
  box-shadow: 0 0 0 1px rgba(255, 138, 61, 0.5) inset;
}

.page-contact .page-contact__scale-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  color: var(--ng-muted);
  font-family: var(--ng-font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
}

.page-contact .page-contact__scale-notes {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .page-contact__scale-note {
  display: grid;
  grid-template-columns: 12px 1fr;
  gap: 12px;
  color: var(--ng-muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.page-contact .page-contact__scale-note::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 9px;
  background: var(--ng-line);
}

.page-contact .page-contact__scale-note--on {
  color: var(--ng-text);
}

.page-contact .page-contact__scale-note--on::before {
  background: var(--ng-orange);
}

/* 来信准备 */
.page-contact .page-contact__prepare {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-contact .page-contact__prepare-visual {
  border: 1px solid var(--ng-line);
  background: var(--ng-slab);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  overflow: hidden;
}

.page-contact .page-contact__prepare-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.06) brightness(0.92);
}

.page-contact .page-contact__checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ng-line);
}

.page-contact .page-contact__checklist > li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--ng-line);
}

.page-contact .page-contact__checklist-num {
  padding-top: 3px;
  color: var(--ng-teal);
  font-family: var(--ng-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.page-contact .page-contact__checklist strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
}

.page-contact .page-contact__checklist p {
  margin: 0;
  color: var(--ng-muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

/* 纠错流程 */
.page-contact .page-contact__steps {
  list-style: none;
  margin: 0;
  padding: 0 0 0 6px;
}

.page-contact .page-contact__step {
  position: relative;
  padding: 4px 0 22px 26px;
  border-left: 1px solid var(--ng-line);
}

.page-contact .page-contact__step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .page-contact__step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 10px;
  width: 9px;
  height: 9px;
  background: var(--ng-ink);
  border: 1px solid var(--ng-violet);
  transform: rotate(45deg);
}

.page-contact .page-contact__step-title {
  margin: 0 0 6px;
  font-family: var(--ng-font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  color: var(--ng-violet);
}

.page-contact .page-contact__step-text {
  margin: 0;
  max-width: 48ch;
  color: var(--ng-muted);
  font-size: 0.9375rem;
  line-height: 1.78;
}

/* 备案窄条 */
.page-contact .page-contact__strip {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 20px;
  padding: 16px clamp(16px, 3vw, 24px);
  background: var(--ng-slab);
  border: 1px solid var(--ng-line);
  border-left: 3px solid var(--ng-violet);
  font-family: var(--ng-font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.03em;
}

.page-contact .page-contact__strip-key {
  color: var(--ng-muted);
}

.page-contact .page-contact__strip-val {
  color: var(--ng-text);
  word-break: break-word;
}

.page-contact .page-contact__links {
  margin: 22px 0 0;
  max-width: 52ch;
  color: var(--ng-muted);
  font-size: 0.9375rem;
  line-height: 1.85;
}

.page-contact .page-contact__links a {
  color: var(--ng-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .page-contact__links a:hover {
  color: var(--ng-orange);
}

/* 中等屏 */
@media (min-width: 720px) {
  .page-contact .page-contact__channel {
    grid-template-columns: 52px 1fr;
    gap: 22px;
  }

  .page-contact .page-contact__channel-icon {
    width: 52px;
    height: 52px;
  }

  .page-contact .page-contact__channel-icon svg {
    width: 24px;
    height: 24px;
  }

  .page-contact .page-contact__checklist > li {
    grid-template-columns: 44px 1fr;
    gap: 18px;
    padding: 20px 0;
  }
}

/* 宽屏：来信准备区改为左图右清单 */
@media (min-width: 900px) {
  .page-contact .page-contact__prepare {
    grid-template-columns: minmax(220px, 300px) 1fr;
    align-items: start;
  }

  .page-contact .page-contact__prepare-visual img {
    aspect-ratio: 3 / 4;
  }

  .page-contact .page-contact__channels {
    gap: 22px;
  }
}

@media (min-width: 1180px) {
  .page-contact .page-contact__head {
    padding-top: 56px;
  }

  .page-contact .page-contact__prepare {
    grid-template-columns: 360px 1fr;
    gap: 56px;
  }
}

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