.page-contact {
  --pc-radius: 18px;
  --pc-ink-soft: rgba(11, 30, 45, .9);
  position: relative;
  overflow-x: clip;
  color: var(--ice);
  font-family: var(--font-body);
  background:
    radial-gradient(115% 85% at 88% 0%, rgba(43, 212, 125, .10), transparent 58%),
    radial-gradient(90% 75% at 2% 14%, rgba(245, 192, 74, .08), transparent 56%),
    var(--ink);
}

.page-contact .pc-shell {
  width: 100%;
  max-width: calc(var(--maxw) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-bottom: clamp(2.4rem, 6vw, 4.5rem);
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.6rem);
  padding-block: clamp(1.2rem, 3vw, 2rem) clamp(1.8rem, 4.5vw, 3rem);
  align-items: start;
}

.page-contact .contact-hero__title {
  margin: .35em 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.35rem, 6.4vw, 4.6rem);
  line-height: .98;
  letter-spacing: .005em;
  text-wrap: balance;
}

.page-contact .contact-hero__lead {
  margin-top: clamp(.9rem, 2.4vw, 1.3rem);
  max-width: 34em;
  color: var(--mist);
}

.page-contact .contact-hero__stats {
  list-style: none;
  margin: clamp(1.2rem, 3vw, 1.8rem) 0 0;
  padding: 0;
  display: grid;
  gap: .85rem;
  grid-template-columns: 1fr;
  max-width: 46rem;
}

.page-contact .contact-hero__stats li {
  display: grid;
  gap: .18rem;
  padding-left: .8rem;
  border-left: 2px solid var(--gold);
}

.page-contact .contact-hero__stats .pc-num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.05rem, 2.6vw, 1.25rem);
  line-height: 1.2;
  color: var(--gold);
  letter-spacing: .01em;
}

.page-contact .contact-hero__stats li > span:last-child {
  font-size: .875rem;
  line-height: 1.5;
  color: var(--mist);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: clamp(1.3rem, 3.2vw, 2rem);
}

.page-contact .contact-hero__art {
  margin: 0;
  display: grid;
  gap: .6rem;
}

.page-contact .contact-hero__art img {
  display: block;
  width: 100%;
  aspect-ratio: 5 / 6;
  height: auto;
  object-fit: cover;
  border-radius: var(--pc-radius);
  border: 1px solid var(--line);
  background: var(--teal);
  box-shadow: 0 30px 60px -40px rgba(0, 0, 0, .95);
}

.page-contact .contact-hero__cap {
  font-size: .8125rem;
  line-height: 1.65;
  color: var(--mist);
  padding-left: .8rem;
  border-left: 2px solid var(--line-strong);
}

/* ---------- 区块骨架 ---------- */
.page-contact .pc-block {
  padding-block: clamp(2rem, 5.5vw, 3.6rem);
  border-top: 1px solid var(--line);
}

.page-contact .pc-block:first-of-type {
  border-top: 0;
}

/* ---------- 联系渠道 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: clamp(.9rem, 2.2vw, 1.4rem);
  grid-template-columns: 1fr;
  margin-top: clamp(1.3rem, 3.2vw, 1.9rem);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: clamp(1.1rem, 2.6vw, 1.6rem);
  border-radius: var(--pc-radius);
  border: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(174, 199, 214, .16), rgba(174, 199, 214, .05));
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: 0 22px 44px -34px rgba(0, 0, 0, .95);
  overflow: hidden;
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--green), var(--gold));
}

.page-contact .channel-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--mint);
}

.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(.98rem, 2.3vw, 1.12rem);
  line-height: 1.45;
  color: var(--ice);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__note {
  margin: 0 0 .25rem;
  font-size: .875rem;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 复制按钮 ---------- */
.page-contact .pc-copy {
  align-self: flex-start;
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .55rem .95rem;
  border-radius: 999px;
  border: 1px solid rgba(43, 212, 125, .45);
  background: rgba(43, 212, 125, .10);
  color: var(--ice);
  font-family: var(--font-body);
  font-size: .8125rem;
  line-height: 1;
  cursor: pointer;
  transition: background .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease), color .2s var(--ease);
}

.page-contact .pc-copy:hover {
  background: rgba(43, 212, 125, .22);
  border-color: var(--green);
}

.page-contact .pc-copy:active {
  transform: translateY(1px);
}

.page-contact .pc-copy__hint {
  display: none;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: .06em;
}

.page-contact .pc-copy[data-copied="ok"] {
  background: var(--green);
  border-color: var(--green);
  color: var(--ink-deep);
}

.page-contact .pc-copy[data-copied="ok"] .pc-copy__text {
  display: none;
}

.page-contact .pc-copy[data-copied="ok"] .pc-copy__hint {
  display: inline;
}

.page-contact .pc-copy[data-copied="fail"] {
  border-color: var(--orange);
  background: rgba(255, 122, 69, .16);
}

/* ---------- 来信准备 ---------- */
.page-contact .prep__switch {
  position: relative;
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
}

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

.page-contact .prep__chip {
  display: inline-flex;
  align-items: center;
  margin: 0 .5rem .55rem 0;
  padding: .55rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--glass-soft);
  color: var(--mist);
  font-size: .875rem;
  line-height: 1;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .prep__chip:hover {
  color: var(--ice);
  border-color: var(--mint);
}

.page-contact .prep__radio:checked + .prep__chip {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-deep);
  font-weight: 600;
}

.page-contact .prep__radio:focus-visible + .prep__chip {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-contact .prep__panels {
  margin-top: clamp(.7rem, 2vw, 1.1rem);
  padding: clamp(1.1rem, 3vw, 1.8rem);
  border-radius: var(--pc-radius);
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(32, 37, 74, .92), rgba(16, 59, 69, .78));
  box-shadow: inset 0 1px 0 rgba(245, 247, 242, .07);
}

.page-contact .prep__panel {
  display: none;
}

.page-contact .prep__panel h3 {
  margin: 0 0 .85rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.2rem, 2.8vw, 1.45rem);
  line-height: 1.1;
  color: var(--ice);
}

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

.page-contact .prep__list li {
  position: relative;
  padding-left: 1.55rem;
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--ice);
}

.page-contact .prep__list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  top: .05em;
  color: var(--gold);
  font-size: .9em;
}

.page-contact #pc-topic-entry:checked ~ .prep__panels [data-panel="entry"],
.page-contact #pc-topic-login:checked ~ .prep__panels [data-panel="login"],
.page-contact #pc-topic-nav:checked ~ .prep__panels [data-panel="nav"],
.page-contact #pc-topic-list:checked ~ .prep__panels [data-panel="list"] {
  display: block;
}

/* ---------- 回复时段 ---------- */
.page-contact .reply {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.6rem);
  align-items: start;
}

.page-contact .reply__intro .prose {
  margin-top: clamp(.9rem, 2.4vw, 1.2rem);
  color: var(--mist);
}

.page-contact .reply-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
  counter-reset: replystep;
}

.page-contact .reply-steps li {
  position: relative;
  padding: 1rem 1.1rem 1rem 3.3rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(16, 59, 69, .62);
  counter-increment: replystep;
}

.page-contact .reply-steps li::before {
  content: counter(replystep, decimal-leading-zero);
  position: absolute;
  left: 1.05rem;
  top: 1.1rem;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: .875rem;
  color: var(--gold);
}

.page-contact .reply-steps strong {
  display: block;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--ice);
}

.page-contact .reply-steps span {
  display: block;
  margin-top: .18rem;
  font-size: .875rem;
  line-height: 1.68;
  color: var(--mist);
}

/* ---------- 地址与备案 ---------- */
.page-contact .addr__card {
  position: relative;
  overflow: hidden;
  border-radius: var(--pc-radius);
  border: 1px solid var(--line);
  background: var(--ink-deep);
  isolation: isolate;
}

.page-contact .addr__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
  z-index: -2;
}

.page-contact .addr__card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(105deg, rgba(11, 30, 45, .95) 32%, rgba(11, 30, 45, .58) 100%);
}

.page-contact .addr__body {
  position: relative;
  padding: clamp(1.3rem, 3.6vw, 2.4rem);
}

.page-contact .addr__list {
  margin: clamp(1rem, 2.6vw, 1.4rem) 0 clamp(1.1rem, 2.8vw, 1.5rem);
  display: grid;
  gap: .85rem;
}

.page-contact .addr__row {
  display: grid;
  gap: .18rem;
  padding-left: .8rem;
  border-left: 2px solid var(--gold);
}

.page-contact .addr__row dt {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--mint);
}

.page-contact .addr__row dd {
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ice);
  overflow-wrap: anywhere;
}

/* ---------- 延伸入口 ---------- */
.page-contact .contact-more__list {
  list-style: none;
  margin: clamp(1.1rem, 3vw, 1.6rem) 0 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-contact .contact-more__list li {
  padding-top: .8rem;
  border-top: 1px solid var(--line);
}

.page-contact .contact-more__list a {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.05rem, 2.6vw, 1.2rem);
  line-height: 1.2;
  color: var(--ice);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-contact .contact-more__list a::after {
  content: "→";
  color: var(--orange);
  transition: transform .2s var(--ease);
}

.page-contact .contact-more__list a:hover {
  color: var(--green);
}

.page-contact .contact-more__list a:hover::after {
  transform: translateX(4px);
}

.page-contact .contact-more__list p {
  margin: .25rem 0 0;
  font-size: .875rem;
  line-height: 1.68;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .addr__row {
    grid-template-columns: 5.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: .9rem;
  }

  .page-contact .contact-more__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 1.4rem;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: end;
  }

  .page-contact .contact-hero__art img {
    aspect-ratio: 5 / 6;
  }

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

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

@media (min-width: 1040px) {
  .page-contact .contact-hero {
    gap: clamp(2rem, 4.5vw, 3.4rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition: none !important;
    animation: none !important;
  }
}