.page-contact {
  --pc-accent-soft: rgba(35, 224, 214, 0.12);
  position: relative;
  isolation: isolate;
  color: var(--text);
  padding-bottom: 72px;
  overflow-x: clip;
}

.page-contact::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: var(--grid-lines);
  opacity: 0.6;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.35) 42%, transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.35) 42%, transparent 88%);
}

.page-contact::after {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  z-index: -1;
  width: min(880px, 100%);
  height: 300px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at top, rgba(92, 75, 224, 0.26), transparent 70%);
  pointer-events: none;
}

.page-contact .contact-wrap {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: 18px;
}

.page-contact section[id] {
  scroll-margin-top: 96px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: 26px 0;
}

.page-contact .crumbs {
  margin: 0 0 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .crumbs li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.page-contact .crumbs li + li::before {
  content: "/";
  color: var(--line);
}

.page-contact .crumbs a {
  color: var(--muted);
  text-decoration: none;
  transition: color 160ms ease;
}

.page-contact .crumbs a:hover,
.page-contact .crumbs a:focus-visible {
  color: var(--cyan);
}

.page-contact .crumbs [aria-current="page"] {
  color: var(--text);
}

.page-contact .hero-split {
  display: grid;
  gap: 26px;
  padding-block: 0 38px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .hero-copy h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.6vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.page-contact .hero-copy .lede {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--body-text);
}

.page-contact .hero-jump {
  position: relative;
  border: 1px solid var(--line);
  background: var(--ink-1);
  padding: 22px 18px 14px;
}

.page-contact .hero-jump::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--red), var(--violet) 55%, var(--cyan));
}

.page-contact .hero-jump__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .hero-jump ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .hero-jump a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 12px;
  padding: 11px 2px;
  border-top: 1px solid var(--line-soft);
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: color 160ms ease;
}

.page-contact .hero-jump li:first-child a {
  border-top: 0;
}

.page-contact .hero-jump a span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-contact .hero-jump a:hover,
.page-contact .hero-jump a:focus-visible {
  color: var(--cyan);
}

/* ---------- 区块骨架 ---------- */
.page-contact .section {
  padding-block: 52px;
}

.page-contact .section .eyebrow {
  margin: 0 0 10px;
}

.page-contact .section-title {
  margin: 0;
  max-width: 24ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.4vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.page-contact .section-note {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 渠道卡 ---------- */
.page-contact .channel-layout {
  margin-top: 30px;
  display: grid;
  gap: 22px;
}

.page-contact .channel-cards {
  display: grid;
  gap: 16px;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 26px 18px 20px;
  border: 1px solid var(--line);
  background: var(--ink-1);
  transition: background-color 180ms ease, border-color 180ms ease;
}

.page-contact .channel-card--mail {
  --accent: var(--red);
}

.page-contact .channel-card--tel {
  --accent: var(--cyan);
}

.page-contact .channel-card--addr {
  --accent: var(--violet);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: -1px;
  right: -1px;
  top: -1px;
  height: 3px;
  background: var(--accent);
  transition: height 180ms ease;
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  left: -1px;
  top: -1px;
  bottom: -1px;
  width: 3px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top center;
  pointer-events: none;
  transition: transform 220ms ease;
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  background: var(--ink-2);
  border-color: var(--accent);
}

.page-contact .channel-card:hover::after,
.page-contact .channel-card:focus-within::after {
  transform: scaleY(1);
}

.page-contact .channel-card__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.page-contact .channel-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-contact .channel-card__value {
  margin: 2px 0 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.55;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__value--text {
  font-family: var(--font-sans);
  color: var(--text);
}

.page-contact .channel-card__desc {
  margin: 4px 0 18px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .channel-card .btn {
  margin-top: auto;
  align-self: flex-start;
}

.page-contact .channel-visual {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-1);
  aspect-ratio: 16 / 10;
}

.page-contact .channel-visual img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.06);
}

.page-contact .channel-visual figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 10px;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  background: rgba(11, 14, 19, 0.84);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ---------- 反馈模板 ---------- */
.page-contact .template-layout {
  margin-top: 30px;
  display: grid;
  gap: 18px;
}

.page-contact .template-code {
  position: relative;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-contact .template-code__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  background: var(--ink-1);
}

.page-contact .template-code__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .template-code pre {
  margin: 0;
  padding: 18px 14px 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 2.2;
  color: var(--body-text);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.page-contact .template-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-1);
}

.page-contact .template-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.82);
}

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

.page-contact .field-list li {
  display: grid;
  gap: 4px;
  padding: 14px 15px;
  background: var(--ink-1);
}

.page-contact .field-list__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-contact .field-list__v {
  font-size: 14px;
  line-height: 1.75;
  color: var(--body-text);
}

.page-contact .field-list__v a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

/* ---------- 回复时段 ---------- */
.page-contact .reply-band {
  position: relative;
  margin-top: 26px;
  display: grid;
  gap: 22px;
  padding: 24px 18px;
  border: 1px solid var(--line);
  background:
    linear-gradient(115deg, rgba(255, 59, 78, 0.11), transparent 46%),
    var(--ink-1);
}

.page-contact .reply-clock__day {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .reply-clock__time {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(26px, 5.4vw, 34px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--red);
}

.page-contact .reply-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 13px;
}

.page-contact .reply-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--body-text);
}

.page-contact .reply-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .reply-list strong {
  display: inline-block;
  margin-right: 8px;
  font-weight: 600;
  color: var(--text);
}

/* ---------- 合作与引用 ---------- */
.page-contact .partner-grid {
  margin-top: 26px;
  display: grid;
  gap: 22px;
}

.page-contact .partner-copy p {
  margin: 0 0 15px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--body-text);
}

.page-contact .partner-copy p:last-child {
  margin-bottom: 0;
}

.page-contact .partner-copy a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-contact .partner-brief {
  border: 1px solid var(--line);
  border-top: 3px solid var(--yellow);
  background: var(--ink-1);
  padding: 20px 16px;
}

.page-contact .partner-brief__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .partner-brief ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 11px;
}

.page-contact .partner-brief li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--body-text);
}

.page-contact .partner-brief li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--yellow);
}

/* ---------- 常见提问横幅 ---------- */
.page-contact .help-banner {
  position: relative;
  display: grid;
  gap: 22px;
  padding: 26px 18px;
  border: 1px solid var(--line);
  background:
    linear-gradient(100deg, rgba(35, 224, 214, 0.12), transparent 58%),
    var(--ink-1);
}

.page-contact .help-banner h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.8vw, 30px);
  line-height: 1.22;
  text-wrap: balance;
}

.page-contact .help-banner p {
  margin: 12px 0 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .help-banner p.eyebrow {
  margin: 0;
  max-width: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .help-banner__acts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

/* ---------- 收尾 ---------- */
.page-contact .contact-tail {
  margin-top: 8px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-tail p {
  margin: 0;
}

.page-contact .contact-tail a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-wrap {
    padding-inline: 26px;
  }

  .page-contact .contact-hero {
    padding-block: 34px 0;
  }

  .page-contact .section {
    padding-block: 64px;
  }

  .page-contact .reply-band {
    padding: 28px 26px;
  }

  .page-contact .help-banner {
    padding: 30px 26px;
  }

  .page-contact .field-list li {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
    padding: 15px 18px;
  }

  .page-contact .template-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
    gap: 22px;
  }
}

@media (min-width: 760px) {
  .page-contact .channel-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .channel-card:nth-child(2) {
    margin-block-start: 22px;
  }

  .page-contact .channel-card:nth-child(3) {
    margin-block-start: 44px;
  }
}

@media (min-width: 900px) {
  .page-contact .section {
    padding-block: 76px;
  }

  .page-contact .hero-split {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 0.72fr);
    gap: 54px;
    align-items: end;
    padding-block: 0 54px;
  }

  .page-contact .hero-copy .lede {
    font-size: 16px;
  }

  .page-contact .partner-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: 38px;
    align-items: start;
  }

  .page-contact .help-banner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 38px;
    padding: 34px 34px;
  }

  .page-contact .reply-band {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: 40px;
    align-items: center;
    padding: 34px 34px;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-wrap {
    padding-inline: 40px;
  }

  .page-contact .channel-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 26px;
    align-items: stretch;
  }

  .page-contact .channel-visual {
    aspect-ratio: auto;
    height: 100%;
    min-height: 260px;
  }
}

@media (min-width: 1200px) {
  .page-contact .channel-layout {
    grid-template-columns: minmax(0, 1fr) 340px;
  }

  .page-contact .contact-hero {
    padding-block: 40px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .channel-card::before,
  .page-contact .channel-card::after,
  .page-contact .crumbs a,
  .page-contact .hero-jump a {
    transition: none;
  }

  .page-contact .channel-card:hover::after,
  .page-contact .channel-card:focus-within::after {
    transform: scaleY(1);
  }
}
<<<END>>>