.page-contact {
  --pc-muted: rgba(243, 239, 230, .74);
  --pc-muted-soft: rgba(243, 239, 230, .52);
  --pc-card: rgba(8, 33, 26, .62);
  --pc-line-soft: rgba(232, 226, 213, .14);
  --pc-paper-card: #FBF8F1;
  --pc-paper-line: rgba(20, 32, 28, .14);
}

/* ---------- 首屏 ---------- */

.page-contact .pc-hero {
  position: relative;
  padding: clamp(20px, 3.4vw, 34px) 0 clamp(40px, 6vw, 76px);
  overflow: hidden;
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -12%;
  width: min(640px, 74vw);
  height: min(640px, 74vw);
  background: radial-gradient(circle at 42% 42%, rgba(210, 98, 46, .24), transparent 68%);
  pointer-events: none;
}

.page-contact .breadcrumb {
  position: relative;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-contact .pc-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-contact .pc-hero__copy h1 {
  margin: 10px 0 0;
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.14;
  font-size: clamp(2rem, 5.4vw, 3.4rem);
}

.page-contact .pc-hero__copy .lede {
  margin-top: clamp(14px, 2vw, 20px);
  max-width: 34em;
  color: var(--pc-muted);
}

.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .pc-hero__visual {
  position: relative;
  margin: 0;
  background: var(--mid);
  overflow: hidden;
  clip-path: polygon(0 0, 93% 0, 100% 100%, 7% 100%);
  box-shadow: var(--shadow);
}

.page-contact .pc-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  filter: saturate(.82) contrast(1.06);
}

.page-contact .pc-hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(198deg, rgba(14, 47, 38, .06) 26%, rgba(8, 33, 26, .82) 100%);
  pointer-events: none;
}

.page-contact .pc-hero__stamp {
  position: absolute;
  left: 11%;
  right: 11%;
  bottom: 8%;
  z-index: 2;
  display: grid;
  gap: 3px;
  padding: clamp(12px, 2vw, 16px) clamp(14px, 2vw, 18px);
  background: rgba(8, 33, 26, .88);
  border: 1px solid rgba(240, 162, 75, .36);
  box-shadow: inset 3px 0 0 var(--gold);
  border-radius: var(--r-md);
  transform: rotate(var(--tilt));
}

.page-contact .pc-hero__stamp-label {
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-contact .pc-hero__stamp-value {
  font-family: var(--font-mono);
  font-size: clamp(12.5px, 1.5vw, 15px);
  color: var(--paper);
  word-break: break-all;
  line-height: 1.5;
}

.page-contact .pc-hero__stamp-note {
  font-size: 12px;
  color: var(--pc-muted-soft);
}

/* ---------- 渠道 + 流程 ---------- */

.page-contact .pc-route {
  padding: clamp(38px, 6vw, 74px) 0;
  background: linear-gradient(180deg, var(--night) 0%, var(--mid) 100%);
  border-top: 1px solid var(--pc-line-soft);
  border-bottom: 1px solid var(--pc-line-soft);
}

.page-contact .pc-route__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(34px, 5vw, 54px);
}

.page-contact .pc-h2 {
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  font-size: clamp(1.32rem, 2.4vw, 1.86rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.28;
  color: var(--paper);
}

.page-contact .pc-channels {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .pc-channel {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px 20px 18px 18px;
  background: var(--pc-card);
  border: 1px solid var(--pc-line-soft);
  border-radius: 18px;
  transition: transform .24s ease, border-color .24s ease;
}

.page-contact .pc-channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--clay);
}

.page-contact .pc-channel:nth-child(2)::before { background: var(--sky); }
.page-contact .pc-channel:nth-child(3)::before { background: var(--gold); }

.page-contact .pc-channel:hover {
  transform: translateY(-2px);
  border-color: rgba(240, 162, 75, .48);
}

.page-contact .pc-channel__icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: rgba(76, 143, 181, .16);
  color: var(--gold);
}

.page-contact .pc-channel__icon svg {
  width: 18px;
  height: 18px;
}

.page-contact .pc-channel__name {
  margin: 0 0 5px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-contact .pc-channel__value {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.5vw, 15px);
  line-height: 1.55;
  color: var(--gold);
  word-break: break-all;
}

.page-contact .pc-channel__use {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--pc-muted);
}

.page-contact .pc-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .pc-flow__item { position: relative; }

.page-contact .disclosure__btn.pc-flow__btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  background: rgba(8, 33, 26, .6);
  border: 1px solid var(--pc-line-soft);
  border-radius: 16px;
  color: var(--paper);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .01em;
  text-align: left;
  cursor: pointer;
  transition: border-color .24s ease, background .24s ease;
}

.page-contact .disclosure__btn.pc-flow__btn:hover {
  border-color: rgba(240, 162, 75, .5);
}

.page-contact .disclosure__btn.pc-flow__btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-contact .disclosure[data-open] > .disclosure__btn.pc-flow__btn {
  box-shadow: inset 3px 0 0 var(--clay);
}

.page-contact .pc-flow__num {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--gold);
  color: var(--night);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
}

.page-contact .pc-flow__label { flex: 1 1 auto; }

.page-contact .pc-flow__chev {
  flex: 0 0 auto;
  display: inline-block;
  width: 9px;
  height: 9px;
  margin-left: auto;
  border-right: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  transform: rotate(45deg);
  transition: transform .24s ease;
}

.page-contact .disclosure[data-open] .pc-flow__chev {
  transform: rotate(225deg);
}

.page-contact .pc-flow__body p {
  margin: 12px 0 0;
  padding-left: 6px;
  font-size: 14px;
  line-height: 1.82;
  color: var(--pc-muted);
}

.page-contact .pc-flow__body a {
  color: var(--sky);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .pc-flow__figure {
  margin: 20px 0 0;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid var(--pc-line-soft);
}

.page-contact .pc-flow__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(.78) contrast(1.05);
}

/* ---------- 邮件受理须知 ---------- */

.page-contact .pc-mail {
  padding: clamp(42px, 6vw, 80px) 0;
}

.page-contact .pc-mail__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .pc-mail__head h2 {
  margin: 10px 0 0;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.24;
}

.page-contact .pc-mail__lede {
  margin: 14px 0 0;
  max-width: 30em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pc-muted);
}

.page-contact .pc-mail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .pc-mail__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--pc-line-soft);
}

.page-contact .pc-mail__item:last-child {
  border-bottom: 1px solid var(--pc-line-soft);
}

.page-contact .pc-mail__idx {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: rgba(240, 162, 75, .16);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
}

.page-contact .pc-mail__item h3 {
  margin: 2px 0 6px;
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: .01em;
}

.page-contact .pc-mail__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: var(--pc-muted);
}

.page-contact .pc-mail__item a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 常见事项 ---------- */

.page-contact .pc-topics {
  padding-top: clamp(44px, 6vw, 82px);
  padding-bottom: clamp(48px, 6vw, 86px);
}

.page-contact .pc-topics__head h2 {
  margin: 10px 0 0;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.24;
}

.page-contact .pc-topics__lede {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .pc-topics__grid {
  margin-top: clamp(22px, 3.4vw, 38px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .disclosure__btn.pc-topic__btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  background: var(--pc-paper-card);
  border: 1px solid var(--pc-paper-line);
  border-radius: 16px;
  color: var(--ink);
  font-size: 15.5px;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  transition: border-color .24s ease, transform .24s ease;
}

.page-contact .disclosure__btn.pc-topic__btn:hover {
  transform: translateY(-2px);
  border-color: rgba(210, 98, 46, .56);
}

.page-contact .disclosure__btn.pc-topic__btn:focus-visible {
  outline: 2px solid var(--clay);
  outline-offset: 2px;
}

.page-contact .disclosure[data-open] > .disclosure__btn.pc-topic__btn {
  box-shadow: inset 3px 0 0 var(--clay);
}

.page-contact .pc-topic__tag {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .05em;
  background: var(--indigo);
  color: var(--paper);
}

.page-contact .pc-topic:nth-child(2) .pc-topic__tag { background: var(--wine); }
.page-contact .pc-topic:nth-child(3) .pc-topic__tag { background: var(--night); }
.page-contact .pc-topic:nth-child(4) .pc-topic__tag { background: var(--mid); }

.page-contact .pc-topic__label { flex: 1 1 auto; }

.page-contact .pc-topic__chev {
  border-right-color: var(--clay);
  border-bottom-color: var(--clay);
}

.page-contact .pc-topic__body p {
  margin: 12px 0 0;
  padding: 0 4px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .pc-topic__body a {
  color: var(--wine);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 服务地区与备案色带 ---------- */

.page-contact .pc-band {
  position: relative;
  margin-top: clamp(14px, 2.4vw, 30px);
  padding: clamp(56px, 8vw, 96px) 0 clamp(40px, 5vw, 62px);
  background: linear-gradient(118deg, var(--wine) 0%, var(--indigo) 62%, var(--night-deep) 100%);
  clip-path: polygon(0 5%, 100% 0, 100% 100%, 0 100%);
}

.page-contact .pc-band__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 46px);
  align-items: center;
}

.page-contact .pc-band__copy h2 {
  margin: 0 0 12px;
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.28;
  color: var(--paper);
}

.page-contact .pc-band__copy p {
  margin: 0;
  max-width: 36em;
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(243, 239, 230, .78);
}

.page-contact .pc-band__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .pc-band__facts li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
  border: 1px solid rgba(243, 239, 230, .22);
  border-radius: 14px;
  background: rgba(8, 33, 26, .34);
}

.page-contact .pc-band__k {
  font-size: 13px;
  letter-spacing: .06em;
  color: rgba(243, 239, 230, .66);
}

.page-contact .pc-band__v {
  font-size: 14px;
  font-weight: 700;
  color: var(--paper);
  text-align: right;
  word-break: break-all;
}

.page-contact .pc-band__v.num {
  font-family: var(--font-mono);
  color: var(--gold);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-contact .pc-topics__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .pc-mail__inner {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
    align-items: start;
  }

  .page-contact .pc-band__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }
}

@media (min-width: 960px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr);
    gap: clamp(34px, 5vw, 66px);
  }

  .page-contact .pc-hero__visual {
    clip-path: polygon(0 4%, 95% 0, 100% 100%, 5% 96%);
  }

  .page-contact .pc-route__grid {
    grid-template-columns: minmax(0, .94fr) minmax(0, 1.06fr);
    gap: clamp(38px, 5vw, 76px);
    align-items: start;
  }

  .page-contact .pc-hero__stamp {
    left: 11%;
    right: 11%;
    bottom: 9%;
  }
}

@media (max-width: 420px) {
  .page-contact .pc-channel {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-contact .pc-hero__stamp {
    left: 8%;
    right: 8%;
    bottom: 6%;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-channel,
  .page-contact .pc-flow__chev,
  .page-contact .pc-hero__stamp,
  .page-contact .disclosure__btn.pc-flow__btn,
  .page-contact .disclosure__btn.pc-topic__btn {
    transition: none;
  }

  .page-contact .pc-channel:hover,
  .page-contact .disclosure__btn.pc-topic__btn:hover {
    transform: none;
  }
}