.page-contact .contact {
  padding-block: clamp(1.1rem, 3vw, 2rem) clamp(3rem, 7vw, 5rem);
  color: var(--text);
}

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: 1.4rem;
  padding-block: 1.1rem 1.8rem;
}

.page-contact .contact-hero__body {
  align-self: end;
}

.page-contact .page-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.95rem, 6.2vw, 3.5rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 0.5rem 0 0.9rem;
}

.page-contact .lede {
  max-width: 48ch;
  color: var(--muted);
  font-size: clamp(0.95rem, 1.6vw, 1.05rem);
  line-height: 1.85;
  margin: 0 0 1.3rem;
}

.page-contact .contact-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.page-contact .contact-hero__media {
  margin: 0;
}

.page-contact .contact-hero__media .media__frame {
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--ink-950);
}

.page-contact .contact-hero__media .media__img {
  display: block;
  width: 100%;
  object-fit: cover;
}

.page-contact .contact-hero__media .media__cap {
  display: block;
  margin-top: 0.55rem;
  font-size: 0.72rem;
  color: var(--muted-dim);
}

/* ---------- 章节索引 ---------- */
.page-contact .contact-index {
  display: flex;
  gap: 0.3rem;
  overflow-x: auto;
  margin: 0.3rem 0 1.2rem;
  padding-block: 0.5rem;
  border-block: 1px solid var(--line-soft);
  scrollbar-width: none;
}

.page-contact .contact-index::-webkit-scrollbar {
  display: none;
}

.page-contact .contact-index a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.42rem 0.7rem;
  font-size: 0.82rem;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-contact .contact-index a .mono {
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--muted-dim);
}

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

.page-contact .contact-index a[aria-current="true"] {
  color: var(--cyan);
  border-color: rgba(53, 224, 208, 0.42);
  background: rgba(53, 224, 208, 0.07);
}

.page-contact .contact-index a[aria-current="true"] .mono {
  color: var(--cyan);
}

/* ---------- 区块骨架 ---------- */
.page-contact .contact-sec {
  padding-block: clamp(1.5rem, 4vw, 2.6rem);
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-sec__lede {
  max-width: 58ch;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.85;
  margin: 0.5rem 0 0;
}

.page-contact .contact-sec h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.42rem, 3.6vw, 2.05rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  margin: 0.42rem 0 0;
}

/* ---------- 渠道卡 ---------- */
.page-contact .ch-grid {
  display: grid;
  gap: 0.9rem;
  margin-top: 1.4rem;
}

.page-contact .ch-card {
  position: relative;
  padding: 1.3rem 1.15rem 1.4rem;
  border: 1px solid var(--line);
  border-top: 2px solid var(--line);
  background: linear-gradient(168deg, rgba(30, 42, 58, 0.68), rgba(11, 18, 32, 0.94));
  display: flex;
  flex-direction: column;
}

.page-contact .ch-card--gold {
  border-top-color: var(--gold);
}

.page-contact .ch-card--cyan {
  border-top-color: var(--cyan);
}

.page-contact .ch-card--hours {
  border-top-color: var(--focus);
}

.page-contact .ch-card__tag {
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  color: var(--muted-dim);
  margin: 0 0 0.5rem;
}

.page-contact .ch-card h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.16rem;
  line-height: 1.4;
  margin: 0 0 0.7rem;
}

.page-contact .ch-card__value {
  font-size: clamp(0.9rem, 1.5vw, 1.04rem);
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--gold);
  margin: 0 0 0.8rem;
  overflow-wrap: anywhere;
  user-select: all;
}

.page-contact .ch-card--cyan .ch-card__value {
  color: var(--cyan);
}

.page-contact .ch-card__desc {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.78;
  margin: 0;
}

.page-contact .ch-card__hint {
  margin: 1rem 0 0;
  padding-top: 0.7rem;
  border-top: 1px dashed var(--line);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--muted-dim);
}

.page-contact .hours {
  height: 14px;
  margin: 0.15rem 0 0.4rem;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(90deg, rgba(51, 65, 85, 0.9) 0 1px, transparent 1px 13px),
    var(--ink-950);
  overflow: hidden;
}

.page-contact .hours__fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, rgba(232, 184, 106, 0.85), rgba(53, 224, 208, 0.8));
}

.page-contact .hours__scale {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--muted-dim);
  margin-bottom: 0.85rem;
}

/* ---------- 写信准备 ---------- */
.page-contact .mail-grid {
  display: grid;
  gap: 1.1rem;
  margin-top: 1.4rem;
}

.page-contact .mail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line);
  counter-reset: mailitem;
}

.page-contact .mail-list li {
  counter-increment: mailitem;
  position: relative;
  background: var(--ink-900);
  padding: 0.95rem 1rem 0.95rem 3.15rem;
}

.page-contact .mail-list li::before {
  content: counter(mailitem, decimal-leading-zero);
  position: absolute;
  left: 1rem;
  top: 1.02rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-contact .mail-list b {
  display: block;
  font-weight: 600;
  font-size: 0.94rem;
  margin-bottom: 0.28rem;
}

.page-contact .mail-list span {
  display: block;
  color: var(--muted);
  font-size: 0.87rem;
  line-height: 1.72;
}

.page-contact .mail-note {
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(22, 18, 43, 0.72), rgba(11, 18, 32, 0.92));
  padding: 1.1rem 1.05rem 1.2rem;
}

.page-contact .mail-note__label {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--gold);
  margin: 0 0 0.7rem;
}

.page-contact .mail-note__pre {
  font-family: var(--mono);
  font-size: 0.77rem;
  line-height: 1.95;
  color: var(--muted);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  margin: 0;
}

.page-contact .mail-note__foot {
  margin: 0.95rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--line);
  font-size: 0.82rem;
  line-height: 1.72;
  color: var(--muted-dim);
}

/* ---------- 版本与文档 ---------- */
.page-contact .contact-sec--split {
  display: grid;
  gap: 1.5rem;
}

.page-contact .verify__text p {
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.85;
  max-width: 50ch;
  margin: 0.85rem 0 0;
}

.page-contact .verify__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.25rem;
}

.page-contact .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.15rem;
}

.page-contact .steps li {
  position: relative;
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.9rem;
}

.page-contact .steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 1.19rem;
  top: 2.5rem;
  bottom: -1.15rem;
  width: 1px;
  background: var(--line);
}

.page-contact .steps__num {
  width: 2.4rem;
  height: 2.4rem;
  display: grid;
  place-items: center;
  font-size: 0.78rem;
  color: var(--cyan);
  border: 1px solid rgba(53, 224, 208, 0.35);
  background: rgba(53, 224, 208, 0.06);
}

.page-contact .steps h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.02rem;
  line-height: 1.55;
  margin: 0.28rem 0 0.35rem;
}

.page-contact .steps p {
  margin: 0;
  color: var(--muted);
  font-size: 0.87rem;
  line-height: 1.75;
}

/* ---------- 合作咨询 ---------- */
.page-contact .partner-grid {
  display: grid;
  gap: 0.9rem;
  margin-top: 1.4rem;
}

.page-contact .partner-card {
  padding: 1.2rem 1.1rem 1.15rem;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(30, 42, 58, 0.52), rgba(11, 18, 32, 0.9));
}

.page-contact .partner-card h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.1rem;
  line-height: 1.45;
  margin: 0 0 0.6rem;
}

.page-contact .partner-card p {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.78;
  margin: 0 0 0.85rem;
}

.page-contact .partner-card .partner-card__meta {
  margin: 0;
  padding-top: 0.68rem;
  border-top: 1px solid var(--line);
  font-size: 0.71rem;
  letter-spacing: 0.03em;
  color: var(--gold);
}

/* ---------- 地址 ---------- */
.page-contact .addr-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.3rem;
}

.page-contact .addr-card {
  position: relative;
  overflow: hidden;
  min-height: 240px;
  display: flex;
  align-items: flex-end;
  padding: 1.5rem 1.2rem;
  border: 1px solid var(--line);
  background: linear-gradient(155deg, rgba(22, 18, 43, 0.94), rgba(7, 12, 22, 0.97));
}

.page-contact .addr-card__grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
}

.page-contact .addr-card__body {
  position: relative;
}

.page-contact .addr-card__label {
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin: 0 0 0.6rem;
}

.page-contact .addr-card__value {
  font-size: clamp(1rem, 2vw, 1.15rem);
  line-height: 1.6;
  letter-spacing: 0.02em;
  margin: 0 0 0.75rem;
}

.page-contact .addr-card__desc {
  max-width: 46ch;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.75;
  margin: 0;
}

.page-contact .addr-grid .media {
  margin: 0;
}

.page-contact .addr-grid .media__frame {
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--ink-950);
}

.page-contact .addr-grid .media__img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
}

.page-contact .addr-grid .media__cap {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.72rem;
  color: var(--muted-dim);
}

/* ---------- 回复节奏 ---------- */
.page-contact .resp-list {
  list-style: none;
  margin: 1.3rem 0 1.1rem;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line);
}

.page-contact .resp-list li {
  background: var(--ink-900);
  padding: 1rem 1.05rem;
}

.page-contact .resp-list__k {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
  margin-bottom: 0.5rem;
}

.page-contact .resp-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.87rem;
  line-height: 1.78;
}

.page-contact .resp-foot {
  max-width: 62ch;
  color: var(--muted-dim);
  font-size: 0.84rem;
  line-height: 1.85;
  margin: 0;
}

.page-contact .resp-foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, 0.35);
}

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

/* ---------- 桌面与栅格 ---------- */
@media (min-width: 700px) {
  .page-contact .ch-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: clamp(1.6rem, 4vw, 3.2rem);
    align-items: end;
    padding-block: 1.8rem 2.4rem;
  }

  .page-contact .mail-grid {
    grid-template-columns: 1.04fr 0.96fr;
    gap: 1.5rem;
    align-items: start;
  }

  .page-contact .contact-sec--split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 2.2rem;
    align-items: start;
  }

  .page-contact .addr-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 1.2rem;
  }

  .page-contact .resp-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-index {
    position: sticky;
    top: 0;
    z-index: 6;
    background: linear-gradient(180deg, rgba(11, 18, 32, 0.98), rgba(11, 18, 32, 0.88));
    backdrop-filter: blur(6px);
    margin-bottom: 1.4rem;
  }

  .page-contact .ch-grid {
    grid-template-columns: 1.14fr 0.84fr 0.92fr;
    align-items: start;
    gap: 1rem;
  }

  .page-contact .ch-card--gold {
    padding-block: 1.7rem 1.8rem;
  }

  .page-contact .ch-card--hours {
    padding-block: 1.05rem 1.2rem;
  }

  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .partner-card--offset {
    margin-top: 1.5rem;
  }
}
<<<END>>>