.page-contact {
  --pc-line: rgba(169, 180, 194, .26);
  --pc-line-soft: rgba(169, 180, 194, .14);
  --pc-panel: rgba(19, 43, 77, .92);
  --pc-ink-line: rgba(7, 19, 34, .14);
  background: var(--c-navy);
  color: var(--c-text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 面包屑与坐标小注 ---------- */
.page-contact .contact-trail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem 1.25rem;
  padding-top: 1.5rem;
  padding-bottom: .75rem;
}

.page-contact .contact-trail .coordinate-tag {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .06em;
  color: var(--c-text-dim);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(1.5rem, 4vw, 3rem) clamp(2.5rem, 6vw, 4.5rem);
  isolation: isolate;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(58% 46% at 88% 4%, rgba(255, 107, 53, .20), transparent 70%),
    radial-gradient(52% 42% at 2% 96%, rgba(46, 196, 182, .16), transparent 72%),
    linear-gradient(rgba(169, 180, 194, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 180, 194, .07) 1px, transparent 1px);
  background-size: auto, auto, 56px 56px, 56px 56px;
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: center;
}

.page-contact .contact-hero__eyebrow {
  margin: 0 0 .75rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-mint);
}

.page-contact .contact-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6.4vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--c-paper);
}

.page-contact .contact-hero__lead {
  margin: 1.1rem 0 0;
  max-width: 34em;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--c-text-dim);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.6rem;
}

.page-contact .contact-hero__note {
  margin: 1.1rem 0 0;
  padding-left: .9rem;
  border-left: 2px solid var(--c-signal);
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--c-sand);
}

.page-contact .contact-hero__visual {
  position: relative;
  margin: 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--pc-line);
  background: linear-gradient(155deg, var(--c-navy-2), var(--c-void));
  box-shadow: var(--shadow-card);
}

.page-contact .contact-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .contact-hero__visual::after {
  content: "";
  position: absolute;
  top: 1.1rem;
  right: 1.1rem;
  width: 74px;
  height: 74px;
  border-radius: 50%;
  border: 1px dashed rgba(46, 196, 182, .6);
  box-shadow: 0 0 0 10px rgba(46, 196, 182, .08);
  animation: pc-pulse 4.5s ease-in-out infinite;
}

.page-contact .contact-hero__visual .media__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.6rem 1rem .7rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .08em;
  color: var(--c-paper);
  background: linear-gradient(to top, rgba(7, 19, 34, .92), transparent);
}

@keyframes pc-pulse {
  0%, 100% { transform: scale(1); opacity: .9; }
  50% { transform: scale(1.08); opacity: .5; }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-hero__visual::after { animation: none; }
}

/* ---------- 渠道工具台 ---------- */
.page-contact .contact-channels {
  background: linear-gradient(180deg, var(--c-navy) 0%, var(--c-navy-2) 100%);
}

.page-contact .channel-console {
  position: relative;
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  padding: clamp(1rem, 2.4vw, 1.75rem);
  border-radius: var(--radius-l);
  border: 1px solid var(--pc-line);
  background: linear-gradient(158deg, rgba(19, 43, 77, .94), rgba(11, 31, 58, .98));
  box-shadow: var(--shadow-card);
}

.page-contact .channel-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  padding: 0;
  opacity: 0;
  pointer-events: none;
}

.page-contact .channel-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px dashed var(--pc-line);
}

.page-contact .channel-tab {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .55rem .95rem;
  border-radius: 999px;
  border: 1px solid var(--pc-line);
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--c-text-dim);
  cursor: pointer;
  transition: color .2s ease, background-color .2s ease, border-color .2s ease;
}

.page-contact .channel-tab::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  opacity: .55;
}

.page-contact .channel-tab:hover {
  color: var(--c-paper);
  border-color: var(--c-signal-hi);
}

.page-contact #channel-mail:checked ~ .channel-tabs .channel-tab[for="channel-mail"],
.page-contact #channel-phone:checked ~ .channel-tabs .channel-tab[for="channel-phone"],
.page-contact #channel-visit:checked ~ .channel-tabs .channel-tab[for="channel-visit"] {
  color: var(--c-paper);
  background: rgba(255, 107, 53, .16);
  border-color: var(--c-signal);
}

.page-contact #channel-mail:checked ~ .channel-tabs .channel-tab[for="channel-mail"]::before,
.page-contact #channel-phone:checked ~ .channel-tabs .channel-tab[for="channel-phone"]::before,
.page-contact #channel-visit:checked ~ .channel-tabs .channel-tab[for="channel-visit"]::before {
  background: var(--c-signal);
  opacity: 1;
}

.page-contact .channel-radio:focus-visible ~ .channel-tabs .channel-tab {
  outline: 2px solid var(--c-mint);
  outline-offset: 2px;
}

.page-contact .channel-panes {
  padding-top: 1.35rem;
}

.page-contact .channel-pane {
  display: none;
}

.page-contact #channel-mail:checked ~ .channel-panes .channel-pane--mail,
.page-contact #channel-phone:checked ~ .channel-panes .channel-pane--phone,
.page-contact #channel-visit:checked ~ .channel-panes .channel-pane--visit {
  display: block;
}

.page-contact .channel-pane__label {
  margin: 0 0 .4rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .16em;
  color: var(--c-mint);
}

.page-contact .channel-pane__value {
  margin: 0 0 1.15rem;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 3.6vw, 1.5rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--c-paper);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel-pane__value--addr {
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 4vw, 1.45rem);
  letter-spacing: 0;
  line-height: 1.5;
}

.page-contact .channel-pane__meta {
  display: grid;
  gap: .85rem;
  margin: 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--pc-line-soft);
}

.page-contact .channel-pane__meta dt {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .14em;
  color: var(--c-text-dim);
  margin-bottom: .18rem;
}

.page-contact .channel-pane__meta dd {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--c-sand);
}

/* ---------- 邮件主题模板 ---------- */
.page-contact .contact-brief .section-head__title {
  color: var(--c-ink);
}

.page-contact .contact-brief .section-head__desc {
  color: var(--c-ink-soft);
}

.page-contact .contact-brief .section-head__index {
  color: #B4390E;
}

.page-contact .contact-brief__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2rem);
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
}

.page-contact .mail-draft {
  padding: clamp(1rem, 2.4vw, 1.7rem);
  border-radius: var(--radius-m);
  border: 1px solid var(--pc-ink-line);
  background: #FFFFFF;
  box-shadow: 0 22px 46px -34px rgba(7, 19, 34, .8);
}

.page-contact .mail-draft__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  flex-wrap: wrap;
}

.page-contact .mail-draft__label {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .16em;
  color: var(--c-mint-deep);
}

.page-contact .mail-draft .data-tag {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .08em;
}

.page-contact .mail-draft__subject {
  margin: .9rem 0 1.15rem;
  padding: .85rem 1rem;
  border-radius: var(--radius-s);
  border-left: 3px solid var(--c-signal);
  background: rgba(244, 225, 193, .55);
  font-family: var(--font-mono);
  font-size: clamp(.82rem, 2.5vw, .95rem);
  line-height: 1.7;
  color: var(--c-ink);
  overflow-wrap: anywhere;
}

.page-contact .mail-draft__hint {
  margin: 0 0 .6rem;
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--c-ink);
}

.page-contact .mail-draft__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .55rem;
}

.page-contact .mail-draft__list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--c-ink-soft);
}

.page-contact .mail-draft__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-mint-deep);
}

.page-contact .contact-brief__aside {
  padding: clamp(1rem, 2.4vw, 1.6rem);
  border-radius: var(--radius-m);
  border: 1px dashed rgba(11, 31, 58, .3);
  background: rgba(255, 255, 255, .5);
}

.page-contact .contact-brief__aside-title {
  margin: 0 0 .9rem;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  letter-spacing: -.01em;
  color: var(--c-ink);
}

.page-contact .topic-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .7rem;
}

.page-contact .topic-list li {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  padding-bottom: .7rem;
  border-bottom: 1px solid rgba(11, 31, 58, .12);
}

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

.page-contact .topic-list__tag {
  flex: 0 0 auto;
  padding: .12rem .5rem;
  border-radius: 999px;
  background: var(--c-navy);
  color: var(--c-paper);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .1em;
}

.page-contact .topic-list__text {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--c-ink);
  overflow-wrap: anywhere;
}

.page-contact .contact-brief__aside-note {
  margin: 1rem 0 1.15rem;
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--c-ink-soft);
}

.page-contact .contact-brief__aside .btn--ghost {
  color: var(--c-navy);
  border-color: rgba(11, 31, 58, .4);
}

/* ---------- 响应时间线 ---------- */
.page-contact .contact-reply__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
}

.page-contact .reply-timeline {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 2rem) 0 0;
  padding: 0;
}

.page-contact .reply-timeline > li {
  position: relative;
  padding: 0 0 1.15rem 1.9rem;
}

.page-contact .reply-timeline > li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 14px;
  bottom: -4px;
  width: 1px;
  background: var(--pc-line);
}

.page-contact .reply-timeline > li:last-child::before {
  display: none;
}

.page-contact .reply-timeline > li::after {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--c-mint);
  box-shadow: 0 0 0 4px rgba(46, 196, 182, .16);
}

.page-contact .reply-step {
  border-radius: var(--radius-s);
  transition: background-color .2s ease;
}

.page-contact .reply-step[open] {
  background: rgba(19, 43, 77, .7);
}

.page-contact .reply-step__summary {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: .7rem;
  padding: .55rem .8rem;
  cursor: pointer;
  list-style: none;
}

.page-contact .reply-step__summary::-webkit-details-marker {
  display: none;
}

.page-contact .reply-step__summary::marker {
  content: "";
}

.page-contact .reply-step__time {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .1em;
  color: var(--c-signal);
}

.page-contact .reply-step__title {
  font-size: var(--fs-body);
  font-weight: 700;
  color: var(--c-paper);
}

.page-contact .reply-step__body {
  padding: 0 .8rem .8rem;
}

.page-contact .reply-step__body p {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--c-text-dim);
}

.page-contact .contact-reply__media {
  position: relative;
  margin: 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--pc-line);
  background: linear-gradient(155deg, var(--c-navy-3), var(--c-void));
}

.page-contact .contact-reply__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .contact-reply__media .media__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.6rem 1rem .7rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .06em;
  color: var(--c-paper);
  background: linear-gradient(to top, rgba(7, 19, 34, .92), transparent);
}

/* ---------- 坐标卡 ---------- */
.page-contact .contact-place .section-head__title {
  color: var(--c-ink);
}

.page-contact .contact-place .section-head__desc {
  color: var(--c-ink-soft);
}

.page-contact .contact-place .section-head__index {
  color: #B4390E;
}

.page-contact .contact-place__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2rem);
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
}

.page-contact .place-card {
  position: relative;
  padding: clamp(1.15rem, 2.6vw, 1.8rem);
  border-radius: var(--radius-m);
  border: 1px solid rgba(11, 31, 58, .22);
  background: rgba(247, 244, 236, .82);
}

.page-contact .place-card__coord {
  margin: 0 0 .9rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .14em;
  color: var(--c-mint-deep);
}

.page-contact .place-card__label {
  margin: 0 0 .3rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .2em;
  color: var(--c-ink-soft);
}

.page-contact .place-card__value {
  margin: 0 0 .9rem;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 4vw, 1.6rem);
  line-height: 1.45;
  letter-spacing: -.01em;
  color: var(--c-ink);
}

.page-contact .place-card__note {
  margin: 0 0 1rem;
  padding-top: .9rem;
  border-top: 1px dashed rgba(11, 31, 58, .24);
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--c-ink-soft);
}

.page-contact .place-card__icp {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .08em;
  color: rgba(7, 19, 34, .55);
}

.page-contact .place-map {
  position: relative;
  min-height: 240px;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid rgba(11, 31, 58, .18);
  background:
    radial-gradient(70% 60% at 78% 18%, rgba(255, 107, 53, .16), transparent 70%),
    radial-gradient(60% 60% at 10% 90%, rgba(46, 196, 182, .18), transparent 72%),
    rgba(247, 244, 236, .6);
  transition: background-color .3s ease, transform .3s ease;
}

.page-contact .place-map:hover {
  transform: translateY(-3px);
}

.page-contact .place-map__svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.page-contact .place-map__watermark {
  position: absolute;
  right: 1rem;
  bottom: .9rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .22em;
  color: rgba(11, 31, 58, .34);
}

.page-contact .place-map__pin {
  position: absolute;
  left: 44%;
  top: 44%;
  transform: translate(-50%, -160%);
  padding: .18rem .55rem;
  border-radius: 999px;
  background: var(--c-navy);
  color: var(--c-paper);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .1em;
  white-space: nowrap;
}

/* ---------- 自助入口 ---------- */
.page-contact .route-list {
  margin: clamp(1.5rem, 3vw, 2.25rem) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .75rem;
}

.page-contact .route-item__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: .9rem 1rem;
  padding: 1rem 1.1rem;
  border-radius: var(--radius-m);
  border: 1px solid var(--pc-line);
  background: rgba(19, 43, 77, .55);
  text-decoration: none;
  color: inherit;
  transition: border-color .2s ease, background-color .2s ease, transform .2s ease;
}

.page-contact .route-item__link:hover,
.page-contact .route-item__link:focus-visible {
  border-color: var(--c-signal);
  background: rgba(255, 107, 53, .1);
  transform: translateY(-2px);
}

.page-contact .route-item__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--c-mint);
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--c-mint);
}

.page-contact .route-item__body {
  display: block;
  min-width: 0;
}

.page-contact .route-item__title {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  letter-spacing: -.01em;
  color: var(--c-paper);
}

.page-contact .route-item__desc {
  display: block;
  margin-top: .25rem;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--c-text-dim);
}

.page-contact .route-item__arrow {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--c-signal);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .contact-brief__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .85fr);
    align-items: start;
  }

  .page-contact .contact-place__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: stretch;
  }

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

  .page-contact .place-map {
    min-height: 320px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-contact .contact-reply__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-contact .contact-reply__media {
    align-self: center;
  }

  .page-contact .channel-pane__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-contact .channel-panes {
    padding-top: 1.6rem;
  }
}

@media (max-width: 480px) {
  .page-contact .channel-tab {
    font-size: var(--fs-micro);
    padding: .5rem .8rem;
  }

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

  .page-contact .route-item__arrow {
    display: none;
  }
}