.page-contact {
  background: var(--c-void);
  color: var(--c-paper);
  font-family: var(--font-body);
  padding: 20px clamp(16px, 3.5vw, 44px) 72px;
  overflow-x: clip;
}

.page-contact > section,
.page-contact > nav {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
}

.page-contact [id] {
  scroll-margin-top: 76px;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding-block: 6px 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-mute);
}

.page-contact .breadcrumbs__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-contact .breadcrumbs__item:not(:first-child)::before {
  content: "/";
  margin-inline-end: 6px;
  color: var(--c-line);
}

.page-contact .breadcrumbs__link {
  color: var(--c-mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .breadcrumbs__link:hover,
.page-contact .breadcrumbs__link:focus-visible {
  color: var(--c-lime);
  border-bottom-color: var(--c-lime);
}

/* ---------- 首屏分屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: 22px;
  padding-block: 4px 40px;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 8vw, 56px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-contact .contact-hero__lede {
  margin: 18px 0 0;
  max-width: 40ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-mute);
}

.page-contact .contact-hero__quick {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .contact-hero__quick a {
  display: inline-block;
  padding: 9px 14px;
  font-size: 14px;
  color: var(--c-paper);
  text-decoration: none;
  background: var(--c-stand);
  border: 1px solid var(--c-line);
  clip-path: var(--cut-corner);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .contact-hero__quick a:hover,
.page-contact .contact-hero__quick a:focus-visible {
  color: var(--c-void);
  background: var(--c-lime);
  border-color: var(--c-lime);
}

.page-contact .contact-hero__figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--c-stand);
  border: 1px solid var(--c-line);
  clip-path: var(--cut-corner);
  isolation: isolate;
}

.page-contact .contact-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  filter: saturate(0.6) brightness(0.7) contrast(1.06);
}

.page-contact .contact-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(198, 255, 61, 0.09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(198, 255, 61, 0.09) 1px, transparent 1px);
  background-size: 24px 24px;
}

.page-contact .contact-hero__figure .media__tag {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 2;
  margin: 0;
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-lime);
  background: rgba(5, 9, 10, 0.82);
  border: 1px solid var(--c-line);
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 36px;
    align-items: start;
    padding-block: 12px 64px;
  }

  .page-contact .contact-hero__figure {
    order: -1;
  }

  .page-contact .contact-hero__figure img {
    aspect-ratio: 14 / 11;
  }
}

/* ---------- 场景索引 ---------- */
.page-contact .contact-scenes {
  padding-block: 34px 40px;
  border-top: 1px solid var(--c-line);
}

.page-contact .contact-scenes__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-contact .contact-scenes__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .scene {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 16px 16px 18px;
  text-decoration: none;
  color: var(--c-paper);
  background: var(--c-stand);
  border: 1px solid var(--c-line);
  clip-path: var(--cut-corner);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .scene:hover,
.page-contact .scene:focus-visible {
  border-color: var(--c-lime);
  background: var(--c-panel);
}

.page-contact .scene__title {
  display: block;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.page-contact .scene__hint {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--c-mute);
}

@media (min-width: 680px) {
  .page-contact .contact-scenes__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-scenes__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 通道 + 联系面板 ---------- */
.page-contact .contact-desk {
  display: grid;
  gap: 18px;
  padding-block: 8px 48px;
}

.page-contact .contact-desk__title {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--c-mute);
}

.page-contact .contact-desk__title::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-inline-end: 8px;
  background: var(--c-lime);
  vertical-align: 1px;
}

.page-contact .channel {
  position: relative;
  margin-top: 12px;
  padding: 20px 20px 22px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  clip-path: var(--cut-corner);
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--c-line);
  transition: background 0.22s var(--ease);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  border-color: var(--c-lime);
  background: var(--c-stand);
}

.page-contact .channel:hover::before,
.page-contact .channel:focus-within::before {
  background: var(--c-lime);
}

.page-contact .channel__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-lime);
}

.page-contact .channel__name {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-contact .channel__text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-mute);
}

.page-contact .channel__meta {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--c-line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-mute);
}

.page-contact .channel__meta strong {
  color: var(--c-orange);
  font-weight: 600;
}

.page-contact .channel__link {
  margin: 12px 0 0;
  font-size: 13px;
}

.page-contact .channel__link a {
  color: var(--c-lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 61, 0.35);
  transition: border-color 0.2s var(--ease);
}

.page-contact .channel__link a:hover,
.page-contact .channel__link a:focus-visible {
  border-bottom-color: var(--c-lime);
}

/* 联系面板 */
.page-contact .contact-panel {
  position: relative;
  margin-top: 16px;
  padding: 24px 20px 26px;
  background: var(--c-stand);
  border: 1px solid var(--c-line);
  clip-path: var(--cut-corner);
}

.page-contact .contact-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 40%;
  height: 3px;
  background: linear-gradient(90deg, var(--c-lime), var(--c-lime2), transparent);
}

.page-contact .contact-panel__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-contact .contact-lines {
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .contact-lines__row {
  display: grid;
  gap: 5px;
  padding-block: 13px;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .contact-lines__row:first-child {
  padding-top: 0;
}

.page-contact .contact-lines dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-mute);
}

.page-contact .contact-lines dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-paper);
  overflow-wrap: anywhere;
}

.page-contact .contact-lines__row:first-child dd {
  color: var(--c-lime);
  font-size: 16px;
}

.page-contact .contact-panel__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--c-mute);
}

.page-contact .contact-panel__helper {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--c-line);
  font-size: 13px;
  line-height: 1.72;
  color: var(--c-mute);
}

.page-contact .contact-panel__helper a {
  color: var(--c-haze);
  text-decoration: none;
  border-bottom: 1px solid rgba(221, 247, 168, 0.35);
}

.page-contact .contact-panel__helper a:hover,
.page-contact .contact-panel__helper a:focus-visible {
  border-bottom-color: var(--c-haze);
}

@media (min-width: 900px) {
  .page-contact .contact-desk {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 26px;
    align-items: start;
    padding-block: 12px 64px;
  }

  .page-contact .contact-panel {
    margin-top: 28px;
    position: sticky;
    top: 88px;
  }
}

/* ---------- 材料清单 ---------- */
.page-contact .contact-materials {
  display: grid;
  gap: 24px;
  padding-block: 40px;
  border-top: 1px solid var(--c-line);
}

.page-contact .contact-materials__figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  clip-path: var(--cut-corner);
}

.page-contact .contact-materials__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  filter: saturate(0.55) brightness(0.68) contrast(1.05);
}

.page-contact .contact-materials__figure .media__tag {
  position: absolute;
  left: 12px;
  bottom: 12px;
  margin: 0;
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-orange);
  background: rgba(5, 9, 10, 0.84);
  border: 1px solid var(--c-line);
}

.page-contact .contact-materials__body h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 5vw, 38px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-contact .contact-materials__lede {
  margin: 14px 0 0;
  max-width: 42ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mute);
}

.page-contact .checklist {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .checklist__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px 14px;
  background: var(--c-panel);
  border-left: 2px solid var(--c-line);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-contact .checklist__item:has(.checklist__box:checked) {
  border-left-color: var(--c-lime);
  background: var(--c-stand);
}

.page-contact .checklist__box {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin: 1px 0 0;
  background: var(--c-void);
  border: 1px solid var(--c-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%);
  cursor: pointer;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-contact .checklist__box:checked {
  background: var(--c-lime);
  border-color: var(--c-lime);
  box-shadow: inset 0 0 0 4px var(--c-void);
}

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

.page-contact .checklist__label {
  display: flex;
  gap: 10px;
  align-items: baseline;
  cursor: pointer;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-paper);
}

.page-contact .checklist__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-mute);
}

.page-contact .checklist__item:has(.checklist__box:checked) .checklist__no {
  color: var(--c-lime);
}

.page-contact .meter {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
}

.page-contact .meter__seg {
  display: block;
  height: 6px;
  background: var(--c-line);
  transition: background 0.25s var(--ease);
}

.page-contact .materials-shell:has(#mat-1:checked) .meter__seg:nth-child(1),
.page-contact .materials-shell:has(#mat-2:checked) .meter__seg:nth-child(2),
.page-contact .materials-shell:has(#mat-3:checked) .meter__seg:nth-child(3),
.page-contact .materials-shell:has(#mat-4:checked) .meter__seg:nth-child(4) {
  background: var(--c-lime);
}

.page-contact .materials-hint {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--c-mute);
}

.page-contact .contact-materials__note {
  margin: 20px 0 0;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-haze);
  background: rgba(36, 20, 54, 0.55);
  border-left: 2px solid var(--c-indigo);
}

@media (min-width: 900px) {
  .page-contact .contact-materials {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 36px;
    align-items: start;
    padding-block: 56px;
  }

  .page-contact .contact-materials__figure {
    position: sticky;
    top: 88px;
  }
}

/* ---------- 响应刻度尺 ---------- */
.page-contact .contact-sla {
  padding-block: 40px;
  border-top: 1px solid var(--c-line);
}

.page-contact .contact-sla__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 4.6vw, 36px);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.page-contact .contact-sla__lede {
  margin: 12px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mute);
}

.page-contact .tape {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--c-line);
  border-block: 1px solid var(--c-line);
}

.page-contact .tape__slot {
  position: relative;
  padding: 20px 16px 22px;
  background: var(--c-void);
}

.page-contact .tape__slot::before {
  content: "";
  position: absolute;
  top: 0;
  left: 16px;
  width: 26px;
  height: 3px;
  background: var(--c-lime);
}

.page-contact .tape__time {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--c-lime);
}

.page-contact .tape__label {
  display: block;
  margin-top: 3px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-paper);
}

.page-contact .tape__text {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-mute);
}

@media (min-width: 780px) {
  .page-contact .tape {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .tape__slot {
    padding: 22px 18px 24px;
  }
}

/* ---------- 自助入口 ---------- */
.page-contact .contact-next {
  padding-block: 36px 8px;
  border-top: 1px solid var(--c-line);
}

.page-contact .contact-next__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--c-mute);
}

.page-contact .contact-next__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--c-line);
}

.page-contact .contact-next__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 14px 12px;
  background: var(--c-void);
}

.page-contact .contact-next__list a {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--c-paper);
  text-decoration: none;
  border-bottom: 1px solid var(--c-line);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .contact-next__list a:hover,
.page-contact .contact-next__list a:focus-visible {
  color: var(--c-lime);
  border-bottom-color: var(--c-lime);
}

.page-contact .contact-next__list span {
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-mute);
}

@media (min-width: 900px) {
  .page-contact .contact-next__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
  }

  .page-contact .contact-next__list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 18px 16px 20px;
  }
}

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