.page-contact {
  --pc-panel: rgba(247, 242, 231, .05);
  --pc-panel-line: rgba(230, 205, 139, .24);
  background: var(--ivory-050);
  color: var(--ink-900);
}

.page-contact .crumb-row {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

/* 首屏 */
.page-contact .contact-hero {
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.page-contact .pc-hero {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

@media (min-width: 920px) {
  .page-contact .pc-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }
}

.page-contact .pc-hero-copy .h-display {
  margin: .75rem 0 0;
  color: var(--ink-900);
}

.page-contact .pc-hero-copy .lede {
  margin: 1.15rem 0 0;
  color: var(--graphite-600);
}

.page-contact .hero-jumps {
  list-style: none;
  margin: clamp(1.5rem, 3vw, 2rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .hero-jumps a {
  display: flex;
  align-items: baseline;
  gap: .85rem;
  padding: .7rem 0;
  border-bottom: 1px solid var(--line-gold-soft);
  color: var(--ink-900);
  font-size: var(--fs-15);
  text-decoration: none;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}

.page-contact .hero-jumps a:hover,
.page-contact .hero-jumps a:focus-visible {
  color: var(--graphite-600);
  padding-left: .45rem;
}

.page-contact .hero-jumps .mono {
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--gold-500);
}

.page-contact .pc-hero-media {
  position: relative;
  margin: 0;
}

.page-contact .pc-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  border: 1px solid var(--line-gold-soft);
}

.page-contact .pc-hero-media::after {
  content: "";
  position: absolute;
  right: -8px;
  bottom: -8px;
  width: 52%;
  height: 52%;
  border-right: 1px solid var(--gold-500);
  border-bottom: 1px solid var(--gold-500);
  pointer-events: none;
}

.page-contact .pc-caption {
  margin: .8rem 0 0;
  font-size: var(--fs-12);
  letter-spacing: .04em;
  line-height: 1.65;
  color: var(--graphite-600);
}

/* 深色信息带 */
.page-contact .pc-band {
  background: var(--green-900);
  color: var(--ivory-100);
}

.page-contact .pc-band--deep {
  background: var(--green-700);
}

.page-contact .pc-band .h-48,
.page-contact .pc-band .h-24 {
  color: var(--ivory-050);
}

.page-contact .pc-band .prose {
  color: rgba(237, 227, 208, .76);
}

.page-contact .pc-band .eyebrow {
  color: var(--gold-300);
}

.page-contact .pc-sec-head {
  max-width: 48ch;
}

.page-contact .pc-sec-head .prose {
  margin-top: .9rem;
}

/* 三渠道 */
.page-contact .channel-list {
  list-style: none;
  margin: clamp(1.75rem, 4vw, 2.75rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .channel-item {
  display: grid;
  gap: .7rem;
  align-content: start;
  padding: clamp(1.5rem, 3vw, 2.25rem) 0;
  border-top: 1px solid var(--line-dark);
}

.page-contact .channel-item:last-child {
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .channel-top {
  display: flex;
  align-items: baseline;
  gap: .75rem;
}

.page-contact .channel-num {
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--gold-500);
}

.page-contact .channel-name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--fs-24);
  letter-spacing: .06em;
  color: var(--ivory-050);
}

.page-contact .channel-value {
  margin: 0;
  font-size: clamp(1.05rem, 2.6vw, 1.4rem);
  line-height: 1.5;
  letter-spacing: .02em;
  color: var(--gold-300);
  overflow-wrap: anywhere;
}

.page-contact .channel-value--addr {
  font-size: var(--fs-17);
  line-height: 1.65;
  color: var(--ivory-050);
}

.page-contact .channel-use {
  margin: 0;
  font-size: var(--fs-15);
  line-height: 1.75;
  color: rgba(237, 227, 208, .72);
  max-width: 34ch;
}

.page-contact .channel-act {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .9rem;
  margin-top: .35rem;
}

.page-contact .addr-lines {
  width: 120px;
  height: 56px;
  display: block;
  margin: .1rem 0 .25rem;
}

.page-contact .copy-btn {
  font-family: var(--font-body);
  font-size: var(--fs-12);
  letter-spacing: .14em;
  padding: .48rem .9rem;
  color: var(--gold-300);
  background: transparent;
  border: 1px solid var(--line-gold);
  border-radius: 2px;
  cursor: pointer;
  transition: background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}

.page-contact .copy-btn:hover {
  background: var(--gold-500);
  border-color: var(--gold-500);
  color: var(--green-900);
}

.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--gold-300);
  outline-offset: 2px;
}

@media (min-width: 880px) {
  .page-contact .channel-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 clamp(1.5rem, 3vw, 2.5rem);
  }

  .page-contact .channel-item:last-child {
    border-bottom: 0;
  }

  .page-contact .channel-item {
    padding-bottom: 0;
  }
}

/* 回复节奏 */
.page-contact .response-section {
  background: var(--ivory-050);
}

.page-contact .response-grid {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
}

@media (min-width: 920px) {
  .page-contact .response-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

.page-contact .response-main .prose {
  margin-top: .9rem;
}

.page-contact .tl-list {
  list-style: none;
  margin: clamp(1.5rem, 3vw, 2.25rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

.page-contact .tl-item {
  position: relative;
  padding-top: 1.65rem;
  border-top: 1px solid var(--line-gold-soft);
}

.page-contact .tl-dot {
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold-500);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, .14);
  transition: box-shadow .28s var(--ease);
}

.page-contact .tl-item:hover .tl-dot {
  box-shadow: 0 0 0 9px rgba(201, 162, 39, .2);
}

.page-contact .tl-time {
  display: block;
  font-size: var(--fs-13);
  letter-spacing: .12em;
  color: var(--gold-500);
}

.page-contact .tl-text {
  margin: .55rem 0 0;
  font-size: var(--fs-15);
  line-height: 1.72;
  color: var(--graphite-600);
  max-width: 30ch;
}

@media (min-width: 760px) {
  .page-contact .tl-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 clamp(1rem, 2vw, 1.75rem);
  }
}

.page-contact .response-media {
  margin: 0;
}

.page-contact .response-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line-gold);
}

/* 第 3 组引导 */
.page-contact .self-grid {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
}

@media (min-width: 920px) {
  .page-contact .self-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

.page-contact .self-act {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
  margin-top: clamp(1.5rem, 3vw, 2rem);
}

.page-contact .self-panel {
  padding: clamp(1.25rem, 3vw, 1.85rem);
  background: var(--pc-panel);
  border: 1px solid var(--pc-panel-line);
  border-radius: 2px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.page-contact .panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem;
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--gold-300);
}

.page-contact .must-flag {
  display: inline-block;
  padding: .18rem .45rem;
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--cinnabar-600);
  border: 1px solid rgba(178, 58, 43, .5);
  border-radius: 2px;
  background: rgba(178, 58, 43, .08);
}

.page-contact .panel-list {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-contact .panel-list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: var(--fs-15);
  line-height: 1.7;
  color: var(--ivory-100);
}

.page-contact .panel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 1px;
  background: var(--gold-500);
}

.page-contact .panel-foot {
  margin: 1.35rem 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--pc-panel-line);
  font-size: var(--fs-13);
  line-height: 1.75;
  color: rgba(237, 227, 208, .68);
}

.page-contact .panel-link {
  display: inline-block;
  margin-top: .9rem;
  font-size: var(--fs-13);
  color: var(--gold-300);
}

/* 写信区 */
.page-contact .write-section {
  background: var(--ivory-100);
}

.page-contact .write-grid {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
}

@media (min-width: 920px) {
  .page-contact .write-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(2rem, 5vw, 4.5rem);
    align-items: start;
  }

  .page-contact .write-aside {
    margin-top: 4.5rem;
    padding-left: clamp(1.25rem, 2.5vw, 2rem);
    border-left: 1px solid var(--line-gold);
  }
}

.page-contact .write-main .prose {
  margin-top: .9rem;
}

.page-contact .write-list {
  list-style: none;
  margin: clamp(1.5rem, 3vw, 2.25rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

.page-contact .write-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-gold-soft);
}

.page-contact .write-num {
  font-size: var(--fs-13);
  letter-spacing: .12em;
  color: var(--gold-500);
  padding-top: .28rem;
}

.page-contact .write-name {
  margin: 0 0 .4rem;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--fs-24);
  letter-spacing: .05em;
  color: var(--ink-900);
}

.page-contact .write-item p {
  margin: 0;
  font-size: var(--fs-15);
  line-height: 1.75;
  color: var(--graphite-600);
  max-width: 36ch;
}

.page-contact .write-foot {
  margin: clamp(1.5rem, 3vw, 2rem) 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-gold-soft);
  font-size: var(--fs-15);
  line-height: 1.8;
  color: var(--graphite-600);
  max-width: 42ch;
}

.page-contact .write-aside .h-24 {
  margin: 0;
  color: var(--ink-900);
}

.page-contact .route-list {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.page-contact .route-list li {
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--line-gold-soft);
}

.page-contact .route-list li:last-child {
  border-bottom: 0;
}

.page-contact .route-key {
  display: inline-block;
  margin-bottom: .45rem;
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--jade-500);
}

.page-contact .route-list p {
  margin: 0;
  font-size: var(--fs-15);
  line-height: 1.75;
  color: var(--graphite-600);
}

.page-contact .route-note {
  margin: 1rem 0 0;
  font-size: var(--fs-13);
  line-height: 1.75;
  color: var(--graphite-600);
}

/* 通用小件 */
.page-contact .go-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .72rem 1.15rem;
  border: 1px solid var(--gold-500);
  border-radius: 2px;
  font-size: var(--fs-13);
  letter-spacing: .1em;
  text-decoration: none;
  color: var(--ink-900);
  background: transparent;
  transition: background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}

.page-contact .go-btn:hover,
.page-contact .go-btn:focus-visible {
  background: var(--gold-500);
  color: var(--green-900);
}

.page-contact .pc-band .go-btn {
  color: var(--gold-300);
  border-color: var(--line-gold);
}

.page-contact .pc-band .go-btn:hover,
.page-contact .pc-band .go-btn:focus-visible {
  background: var(--gold-500);
  border-color: var(--gold-500);
  color: var(--green-900);
}

.page-contact .text-link {
  color: inherit;
  font-size: var(--fs-15);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  padding-bottom: 2px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .text-link:hover,
.page-contact .text-link:focus-visible {
  border-color: var(--gold-500);
  color: var(--gold-500);
}

.page-contact .pc-band .text-link:hover,
.page-contact .pc-band .text-link:focus-visible {
  color: var(--gold-300);
}

@media (max-width: 599px) {
  .page-contact .channel-value {
    word-break: break-all;
  }

  .page-contact .write-item {
    grid-template-columns: minmax(0, 1fr);
    gap: .5rem;
  }

  .page-contact .pc-hero-media::after {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .hero-jumps a,
  .page-contact .copy-btn,
  .page-contact .go-btn,
  .page-contact .text-link,
  .page-contact .tl-dot {
    transition: none;
  }
}
<<<END>>>