.page-contact {
  --pc-line: rgba(107, 111, 108, .38);
  --pc-line-gold: rgba(201, 162, 39, .48);
  --pc-line-light: rgba(243, 237, 227, .18);
  --pc-ink-soft: rgba(26, 26, 24, .64);
  --pc-rice-soft: rgba(243, 237, 227, .7);
}

/* ---------- 题头 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--deepsea);
  color: var(--rice);
  padding: clamp(88px, 13vw, 148px) 0 clamp(44px, 6vw, 76px);
}

.page-contact .contact-hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-contact .contact-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .46;
  filter: saturate(.72) contrast(1.06);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(118% 88% at 80% 10%, rgba(201, 162, 39, .2), transparent 58%),
    linear-gradient(178deg, rgba(20, 38, 59, .74) 0%, rgba(20, 38, 59, .93) 58%, var(--deepsea) 100%);
}

.page-contact .contact-hero__inner {
  position: relative;
}

.page-contact .contact-hero .breadcrumb__list {
  color: var(--pc-rice-soft);
}

.page-contact .contact-hero .breadcrumb__item a {
  color: var(--pc-rice-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .24s var(--ease), color .24s var(--ease);
}

.page-contact .contact-hero .breadcrumb__item a:hover {
  color: var(--gold);
  border-bottom-color: var(--pc-line-gold);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 46px);
  margin-top: clamp(26px, 5vw, 52px);
}

.page-contact .contact-hero__lead {
  max-width: 40em;
}

.page-contact .contact-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .28em;
  color: var(--gold);
}

.page-contact .contact-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.4rem, 8vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: .01em;
}

.page-contact .contact-hero .lede {
  margin: 0;
  max-width: 33em;
  color: var(--pc-rice-soft);
}

/* 题头右下窄卡 */
.page-contact .hero-card {
  align-self: end;
  border: 1px solid var(--pc-line-light);
  background: rgba(251, 248, 242, .05);
  padding: 20px 20px 18px;
  max-width: 30em;
}

.page-contact .hero-card__cap {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .24em;
  color: var(--gold);
}

.page-contact .hero-card__row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 14px;
  padding: 12px 0;
  border-top: 1px solid var(--pc-line-light);
}

.page-contact .hero-card__slot {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-contact .hero-card__time {
  font-family: var(--font-mono);
  font-size: .92rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: .03em;
  color: var(--rice);
  justify-self: end;
}

.page-contact .hero-card__for {
  grid-column: 1 / -1;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--pc-rice-soft);
}

.page-contact .hero-card__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--pc-line-light);
  font-size: .82rem;
  line-height: 1.75;
  color: rgba(243, 237, 227, .58);
}

@media (min-width: 940px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
  }
}

/* ---------- 展览标签式章节头（深底适配） ---------- */
.page-contact .exhibit__index {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .22em;
  color: var(--gold);
}

.page-contact .exhibit__rule {
  background: var(--pc-line-gold);
}

.page-contact .exhibit__title {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: .01em;
}

.page-contact .section--dark .exhibit__index,
.page-contact .section--night .exhibit__index {
  color: var(--gold);
}

.page-contact .section--dark .exhibit__rule,
.page-contact .section--night .exhibit__rule {
  background: var(--pc-line-gold);
}

.page-contact .section--dark .exhibit__title,
.page-contact .section--night .exhibit__title {
  color: var(--rice);
}

/* ---------- 导语 ---------- */
.page-contact .contact-intro {
  max-width: 34em;
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--ink);
}

.page-contact .contact-intro--light {
  max-width: 36em;
  margin: clamp(20px, 3vw, 30px) 0 0;
  color: var(--pc-rice-soft);
}

/* ---------- 时间轴 ---------- */
.page-contact .tl {
  margin-top: clamp(34px, 5vw, 60px);
}

.page-contact .tl__scale {
  position: relative;
  height: 76px;
}

.page-contact .tl__track {
  position: absolute;
  left: 0;
  right: 0;
  top: 34px;
  height: 1px;
  background: var(--pc-line);
}

.page-contact .tl__seg {
  position: absolute;
  top: 26px;
  left: var(--s);
  width: calc(var(--e) - var(--s));
  height: 16px;
  background: rgba(158, 43, 43, .26);
  border: 1px solid rgba(158, 43, 43, .72);
}

.page-contact .tl__seg::before,
.page-contact .tl__seg::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 7px;
  height: 7px;
  margin-top: -3.5px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, .18);
}

.page-contact .tl__seg::before { left: -4px; }
.page-contact .tl__seg::after { right: -4px; }

.page-contact .tl__marks {
  position: absolute;
  left: 0;
  right: 0;
  top: 50px;
  height: 22px;
}

.page-contact .tl__marks > span {
  position: absolute;
  left: var(--p);
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  font-variant-numeric: tabular-nums;
  color: var(--stone);
}

.page-contact .tl__marks > span::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -16px;
  width: 1px;
  height: 12px;
  background: var(--pc-line);
}

.page-contact .tl__cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 28px;
}

.page-contact .tl__card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--pc-line);
  box-shadow: var(--shadow-paper);
  padding: 24px 22px 26px;
  transition: transform .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
}

.page-contact .tl__card::before {
  content: "";
  position: absolute;
  left: -1px;
  right: -1px;
  top: -1px;
  height: 3px;
  background: var(--gold);
}

.page-contact .tl__card--night::before {
  background: var(--red);
}

.page-contact .tl__card:hover {
  transform: translateY(-3px);
  border-color: var(--pc-line-gold);
  box-shadow: 0 1px 0 rgba(26, 26, 24, .06), 0 28px 46px -30px rgba(20, 38, 59, .6);
}

.page-contact .tl__card-time {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .14em;
  font-variant-numeric: tabular-nums;
  color: var(--gold-deep);
}

.page-contact .tl__card--night .tl__card-time {
  color: var(--red);
}

.page-contact .tl__card-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.4vw, 1.35rem);
  font-weight: 800;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .tl__card-body {
  margin: 0;
  font-size: .96rem;
  line-height: 1.85;
  color: var(--pc-ink-soft);
}

.page-contact .tl__card-meta {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--pc-line);
  font-size: .85rem;
  line-height: 1.75;
  color: var(--stone);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

@media (min-width: 760px) {
  .page-contact .tl__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }
}

/* ---------- 联系渠道 ---------- */
.page-contact .ch {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(30px, 4vw, 46px);
  border-top: 1px solid var(--pc-line-light);
}

.page-contact .ch__item {
  display: grid;
  gap: 10px;
  padding: 26px 0 28px;
  border-bottom: 1px solid var(--pc-line-light);
}

.page-contact .ch__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .24em;
  color: var(--gold);
}

.page-contact .ch__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.3vw, 1.24rem);
  letter-spacing: .02em;
  font-variant-numeric: tabular-nums;
  line-height: 1.6;
  color: var(--rice);
  overflow-wrap: anywhere;
}

.page-contact .ch__value--plain {
  color: var(--pc-rice-soft);
  font-size: clamp(.94rem, 2vw, 1.05rem);
}

.page-contact .ch__foot {
  margin: 0;
  max-width: 40em;
  font-size: .8rem;
  line-height: 1.8;
  color: rgba(243, 237, 227, .56);
}

.page-contact .ch .copy-btn {
  justify-self: start;
  margin-top: 2px;
}

@media (min-width: 780px) {
  .page-contact .ch {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(30px, 5vw, 68px);
  }

  .page-contact .ch__item--wide {
    grid-column: 1 / -1;
  }
}

/* ---------- 留言与回复顺序 ---------- */
.page-contact .stack {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .steps {
  list-style: none;
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .steps__item {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  column-gap: 14px;
  padding: 22px 0;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .steps__num {
  grid-row: 1 / span 2;
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .12em;
  color: var(--gold-deep);
  padding-top: 5px;
}

.page-contact .steps__title {
  grid-column: 2;
  grid-row: 1;
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-contact .steps__body {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--pc-ink-soft);
}

.page-contact .hint {
  margin-top: clamp(26px, 4vw, 38px);
  border: 1px solid var(--pc-line-gold);
  background: var(--paper);
  padding: 24px 22px 26px;
}

.page-contact .hint__cap {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .hint__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .hint__list li {
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr);
  gap: 12px;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--pc-ink-soft);
}

.page-contact .hint__list li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: .68em;
  background: var(--red);
}

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

.page-contact .mfigure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--pc-line);
  filter: saturate(.8);
}

.page-contact .mfigure__cap {
  margin: 12px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
  font-size: .8rem;
  line-height: 1.75;
  color: var(--stone);
}

@media (min-width: 900px) {
  .page-contact .stack--media {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 云南 / 备案 ---------- */
.page-contact .duo {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(24px, 3vw, 36px);
}

.page-contact .duo__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.6vw, 1.45rem);
  font-weight: 800;
  line-height: 1.45;
  color: var(--ink);
}

.page-contact .duo__body {
  margin: 0 0 14px;
  font-size: .98rem;
  line-height: 1.9;
  color: var(--pc-ink-soft);
}

.page-contact .duo__body:last-child {
  margin-bottom: 0;
}

.page-contact .record {
  border: 1px solid var(--pc-line);
  background: var(--paper);
  padding: 20px 20px 22px;
  margin-bottom: 14px;
}

.page-contact .record__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .24em;
  color: var(--stone);
}

.page-contact .record__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .92rem;
  line-height: 1.75;
  letter-spacing: .02em;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .record__more {
  border: 1px solid var(--pc-line);
  background: var(--moss);
  color: var(--rice);
  padding: 16px 20px 18px;
}

.page-contact .record__more summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .14em;
  color: var(--gold);
}

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

.page-contact .record__more summary::after {
  content: " ＋";
}

.page-contact .record__more[open] summary::after {
  content: " －";
}

.page-contact .record__note {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--pc-line-light);
  font-size: .84rem;
  line-height: 1.85;
  color: var(--pc-rice-soft);
}

@media (min-width: 900px) {
  .page-contact .duo {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 渠道使用边界 ---------- */
.page-contact .scope {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  margin-top: clamp(24px, 3vw, 36px);
}

.page-contact .scope__body {
  margin: 0 0 16px;
  max-width: 36em;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--pc-rice-soft);
}

.page-contact .scope__body:last-child {
  margin-bottom: 0;
}

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

.page-contact .scope__links li {
  padding: 14px 0;
  border-bottom: 1px solid var(--pc-line-light);
  font-size: .88rem;
  line-height: 1.75;
  color: rgba(243, 237, 227, .6);
}

.page-contact .scope__links a {
  font-family: var(--font-mono);
  font-size: .88rem;
  letter-spacing: .04em;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 39, .4);
  transition: border-color .24s var(--ease), color .24s var(--ease);
}

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

@media (min-width: 900px) {
  .page-contact .scope {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 窄屏保护 ---------- */
@media (max-width: 560px) {
  .page-contact .tl__marks > span {
    font-size: .62rem;
  }

  .page-contact .hero-card__row {
    grid-template-columns: auto 1fr;
  }

  .page-contact .steps__item {
    grid-template-columns: 38px minmax(0, 1fr);
    column-gap: 10px;
  }

  .page-contact .ch__value {
    word-break: break-all;
  }
}

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

  .page-contact .tl__card:hover {
    transform: none;
  }
}
<<<END>>>

.page-contact {
  --e: 1rem;
  --p: inherit;
  --s: 1rem;
}