.page-contact {
  --pc-gap: clamp(20px, 4vw, 48px);
  --pc-pad: clamp(40px, 7vw, 88px);
  background: var(--ink);
  color: var(--home-white);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(24px, 5vw, 64px) 0 clamp(32px, 6vw, 64px);
  background:
    radial-gradient(120% 85% at 88% 0%, rgba(43, 232, 208, .14), transparent 62%),
    radial-gradient(90% 70% at 0% 8%, rgba(255, 106, 26, .11), transparent 58%),
    var(--ink);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(115deg, rgba(38, 81, 74, .34) 0 1px, transparent 1px 28px);
  opacity: .55;
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact .contact-hero__text {
  min-width: 0;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 74px);
  line-height: 1.02;
  letter-spacing: -.03em;
  margin: .28em 0 .34em;
  max-width: 15em;
}

.page-contact .contact-hero__lede {
  font-size: clamp(16px, 2.1vw, 19px);
  line-height: 1.75;
  color: var(--home-white);
  opacity: .88;
  max-width: 34em;
  margin: 0 0 26px;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}

.page-contact .contact-hero__facts {
  list-style: none;
  margin: 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 8px;
  font-size: 14px;
  color: var(--mute);
}

.page-contact .contact-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-contact .contact-hero__facts .mono {
  font-family: var(--font-mono);
  color: var(--cyan);
  font-size: 14px;
  letter-spacing: .02em;
  flex: 0 0 auto;
}

.page-contact .contact-hero__media {
  margin: 0;
  aspect-ratio: 4 / 3;
  background: var(--slab);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.05);
}

/* ---------- 章节头 ---------- */
.page-contact .section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
  margin-bottom: clamp(22px, 4vw, 38px);
}

.page-contact .section-head__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-contact .section-head__title {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 36px);
  line-height: 1.2;
  letter-spacing: -.02em;
}

.page-contact .section-head__aside {
  margin-left: auto;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 232, 208, .45);
  padding-bottom: 2px;
  white-space: nowrap;
}

.page-contact .section-head__aside:hover {
  color: var(--home-white);
  border-bottom-color: var(--signal);
}

/* ---------- 联络面板 ---------- */
.page-contact .contact-board {
  padding: var(--pc-pad) 0;
}

.page-contact .board-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 44px);
}

.page-contact .col-label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--mute);
}

.page-contact .col-label::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--line);
}

.page-contact .channel {
  position: relative;
  margin-bottom: 14px;
  padding: 20px 20px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(175deg, rgba(23, 51, 43, .92), rgba(19, 26, 24, .92));
  transition: border-left-color .25s var(--ease), transform .25s var(--ease);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  border-left-color: var(--signal);
  transform: translateY(-2px);
}

.page-contact .channel__k {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mute);
}

.page-contact .channel__value {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.5vw, 21px);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--home-white);
  overflow-wrap: anywhere;
}

.page-contact .channel--phone .channel__value {
  font-size: clamp(24px, 4.2vw, 32px);
  color: var(--cyan);
  letter-spacing: .01em;
}

.page-contact .channel__value--addr {
  font-family: var(--font-body);
  font-size: clamp(16px, 2.2vw, 19px);
  line-height: 1.6;
  color: var(--home-white);
}

.page-contact .channel__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.page-contact .channel__note {
  flex: 1 1 160px;
  min-width: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--mute);
}

.page-contact .copy-btn {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid rgba(43, 232, 208, .5);
  background: transparent;
  color: var(--cyan);
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .copy-btn:hover {
  background: rgba(43, 232, 208, .14);
}

.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-contact .copy-btn[data-copied] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

/* ---------- 事项分流折叠卡 ---------- */
.page-contact .route {
  margin-bottom: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(23, 51, 43, .5);
  overflow: hidden;
  transition: border-color .25s var(--ease), background .25s var(--ease);
}

.page-contact .route:hover {
  border-color: rgba(43, 232, 208, .4);
}

.page-contact .route[open] {
  border-color: rgba(43, 232, 208, .6);
  background: rgba(23, 51, 43, .88);
}

.page-contact .route > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
}

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

.page-contact .route > summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -2px;
}

.page-contact .route__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--signal);
}

.page-contact .route__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 2.4vw, 19px);
  letter-spacing: -.01em;
}

.page-contact .route__sign {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
}

.page-contact .route__sign::before {
  content: "+";
}

.page-contact .route[open] .route__sign {
  border-color: var(--cyan);
}

.page-contact .route[open] .route__sign::before {
  content: "−";
}

.page-contact .route__body {
  padding: 2px 18px 20px;
  border-top: 1px solid var(--line);
}

.page-contact .route__body > p {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--home-white);
  opacity: .9;
}

.page-contact .route__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--gold) !important;
  opacity: 1 !important;
}

.page-contact .route__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .route__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--mute);
}

.page-contact .route__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-contact .route__link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 232, 208, .4);
  padding-bottom: 2px;
}

.page-contact .route__link:hover {
  color: var(--home-white);
  border-bottom-color: var(--signal);
}

/* ---------- 中段横条 ---------- */
.page-contact .signal-band {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: clamp(22px, 4vw, 40px) 0;
  background: var(--slab);
}

.page-contact .signal-band__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: .38;
}

.page-contact .signal-band__card {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px 28px;
  align-items: center;
  padding: clamp(20px, 3.4vw, 32px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--signal);
  border-radius: var(--radius);
  background: linear-gradient(100deg, rgba(12, 22, 19, .93), rgba(23, 51, 43, .72));
  backdrop-filter: blur(6px);
}

.page-contact .signal-band__title {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.8vw, 28px);
  line-height: 1.3;
  letter-spacing: -.02em;
}

.page-contact .signal-band__lede {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mute);
}

.page-contact .signal-band__cta {
  justify-self: start;
}

/* ---------- 信息模板 ---------- */
.page-contact .write-guide {
  padding: var(--pc-pad) 0;
}

.page-contact .write-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
}

.page-contact .write-list {
  list-style: none;
  counter-reset: wguide;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .write-list li {
  counter-increment: wguide;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 15px 0;
  border-top: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--mute);
}

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

.page-contact .write-list li::before {
  content: counter(wguide, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--signal);
  padding-top: 3px;
}

.page-contact .write-list strong {
  display: block;
  margin-bottom: 2px;
  font-weight: 700;
  color: var(--home-white);
}

.page-contact .write-sample {
  position: relative;
  padding: 22px 22px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  background: rgba(23, 51, 43, .55);
}

.page-contact .write-sample__k {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-contact .write-sample__quote {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.9;
  color: var(--home-white);
  opacity: .92;
}

.page-contact .write-sample__foot {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--mute);
}

/* ---------- 处理节奏 ---------- */
.page-contact .pace {
  padding: 0 0 var(--pc-pad);
}

.page-contact .pace-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .pace-steps li {
  padding: 20px 18px;
  background: var(--slab);
}

.page-contact .pace__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-contact .pace__t {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -.01em;
  color: var(--home-white);
}

.page-contact .pace__d {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mute);
}

.page-contact .pace-note {
  margin: 20px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--signal);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 收尾 ---------- */
.page-contact .contact-tail {
  padding: 0 0 clamp(36px, 6vw, 72px);
}

.page-contact .contact-tail__inner {
  display: grid;
  gap: 12px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-tail__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mute);
}

.page-contact .contact-tail__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.page-contact .contact-tail__links a {
  font-size: 14px;
  color: var(--home-white);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 3px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .contact-tail__links a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-hero__facts {
    grid-auto-flow: column;
    justify-content: start;
    gap: 0 28px;
    padding-top: 18px;
  }

  .page-contact .signal-band__card {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .page-contact .write-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }

  .page-contact .pace-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: center;
  }

  .page-contact .contact-hero__media {
    aspect-ratio: 4 / 4.4;
  }

  .page-contact .board-grid {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    align-items: start;
  }

  .page-contact .channels {
    position: sticky;
    top: calc(var(--bar) + 24px);
  }

  .page-contact .pace-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .copy-btn,
  .page-contact .route,
  .page-contact .route__link,
  .page-contact .contact-tail__links a {
    transition: none;
  }

  .page-contact .channel:hover,
  .page-contact .channel:focus-within {
    transform: none;
  }
}
<<<END>>>