.page-contact {
  --pc-gap: clamp(16px, 2.4vw, 24px);
  --pc-band: clamp(30px, 5vw, 62px);
  --pc-edge: 3px;
  background: var(--ink);
  color: var(--mist);
}

.page-contact :is(.pc-split, .pc-reply, .pc-case, .pc-partner, .pc-local) {
  padding-block: var(--pc-band);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: var(--pc-edge) solid var(--grass);
  background:
    radial-gradient(ellipse at 80% 10%, rgba(215, 255, 63, .17), transparent 46%),
    radial-gradient(ellipse at 8% 92%, rgba(31, 107, 69, .58), transparent 54%),
    linear-gradient(155deg, #0B1F1A 0%, #123227 52%, #0A1B2A 100%);
}

.page-contact .pc-hero__shot {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .24;
  filter: grayscale(.4) contrast(1.12);
  pointer-events: none;
}

.page-contact .pc-hero__inner {
  position: relative;
  padding-block: clamp(24px, 4.4vw, 46px) clamp(36px, 6vw, 70px);
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: clamp(16px, 3vw, 26px);
  font-size: .8rem;
  letter-spacing: .05em;
  color: var(--steel);
}

.page-contact .breadcrumb a {
  color: var(--lime);
  text-decoration: none;
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  text-decoration: underline;
}

.page-contact .breadcrumb__sep {
  color: var(--grass);
}

.page-contact .pc-hero__title {
  max-width: 22ch;
  margin: 0 0 .45em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.95rem, 6.2vw, 4rem);
  line-height: 1.04;
  letter-spacing: -.015em;
  color: var(--paper);
  text-wrap: balance;
}

.page-contact .pc-hl {
  color: var(--lime);
}

.page-contact .pc-hero__lede {
  max-width: 60ch;
  margin: 0;
  font-size: clamp(.94rem, 1.5vw, 1.06rem);
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .pc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

/* ---------- 联系主体分栏 ---------- */
.page-contact .pc-split {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .pc-split__main {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .pc-card {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 3.4vw, 34px);
  border: var(--pc-edge) solid var(--grass);
  background: linear-gradient(155deg, var(--moss) 0%, var(--ink-soft) 64%);
  box-shadow: var(--shadow-hard);
}

.page-contact .pc-card::after {
  content: "";
  position: absolute;
  right: -46px;
  bottom: -46px;
  width: 148px;
  height: 148px;
  border: 2px solid rgba(215, 255, 63, .20);
  border-radius: 50%;
  pointer-events: none;
}

.page-contact .pc-card__no {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .18em;
  color: var(--lime);
}

.page-contact .pc-card__big {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.65rem, 6.2vw, 2.85rem);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--mist);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 2px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}

.page-contact .pc-card__big--mail {
  font-size: clamp(1.02rem, 4.3vw, 1.85rem);
  letter-spacing: 0;
}

.page-contact .pc-card__big:hover,
.page-contact .pc-card__big:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-contact .pc-card__note {
  margin: 14px 0 0;
  font-size: .88rem;
  line-height: 1.72;
  color: var(--steel);
}

/* ---------- 右侧档案卡 ---------- */
.page-contact .pc-split__side {
  display: grid;
  gap: var(--pc-gap);
  align-content: start;
}

.page-contact .pc-file {
  padding: 16px 18px;
  background: var(--paper);
  color: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-soft);
}

.page-contact .pc-file__label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--grass);
}

.page-contact .pc-file__value {
  display: block;
  font-size: .98rem;
  font-weight: 700;
  line-height: 1.58;
}

.page-contact .pc-file__hint {
  margin: 9px 0 0;
  font-size: .83rem;
  line-height: 1.68;
  color: rgba(11, 31, 26, .70);
}

.page-contact .pc-file__links {
  display: grid;
  gap: 2px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .pc-file__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 0;
  font-size: .88rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px dashed rgba(11, 31, 26, .22);
  transition: color .16s ease;
}

.page-contact .pc-file__links a::after {
  content: "→";
  color: var(--grass);
  font-family: var(--font-mono);
}

.page-contact .pc-file__links li:last-child a {
  border-bottom: 0;
}

.page-contact .pc-file__links a:hover,
.page-contact .pc-file__links a:focus-visible {
  color: var(--grass);
}

/* ---------- 时间节点提示条 ---------- */
.page-contact .pc-reply {
  border-block: var(--pc-edge) solid var(--lime);
  background: var(--night);
}

.page-contact .pc-reply__grid {
  display: grid;
  gap: 1px;
  border: 1px solid rgba(199, 208, 204, .24);
  background: rgba(199, 208, 204, .24);
}

.page-contact .pc-reply__item {
  padding: clamp(16px, 2.6vw, 26px);
  background: var(--night);
}

.page-contact .pc-reply__num {
  display: block;
  margin-bottom: 10px;
  font-size: clamp(1.3rem, 3vw, 1.85rem);
  color: var(--lime);
  letter-spacing: -.01em;
}

.page-contact .pc-reply__item p {
  margin: 0;
  font-size: .88rem;
  line-height: 1.74;
  color: var(--steel);
}

/* ---------- 章节标题统一处理 ---------- */
.page-contact .h-section {
  margin: 0 0 .6em;
  font-family: var(--font-display);
  font-size: clamp(1.38rem, 3.2vw, 2.05rem);
  line-height: 1.16;
  letter-spacing: .005em;
  color: var(--paper);
}

.page-contact .h-section::before {
  content: "";
  display: block;
  width: 46px;
  height: 4px;
  margin-bottom: 12px;
  background: var(--lime);
}

/* ---------- 问题提交指引 ---------- */
.page-contact .pc-case__grid {
  display: grid;
  gap: clamp(22px, 3.5vw, 40px);
  align-items: start;
}

.page-contact .pc-case__figure {
  margin: 0;
  overflow: hidden;
  border: var(--pc-edge) solid var(--grass);
  background: var(--moss);
  box-shadow: var(--shadow-hard);
}

.page-contact .pc-case__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .pc-case__figure figcaption {
  padding: 12px 16px;
  border-top: 2px solid var(--grass);
  font-size: .8rem;
  line-height: 1.65;
  color: var(--steel);
}

.page-contact .pc-case__body > p {
  margin: 0;
  font-size: .93rem;
  line-height: 1.76;
  color: var(--steel);
}

.page-contact .pc-steps {
  counter-reset: pcstep;
  display: grid;
  gap: 11px;
  margin: 20px 0 24px;
  padding: 0;
  list-style: none;
}

.page-contact .pc-steps li {
  counter-increment: pcstep;
  position: relative;
  padding: 12px 14px 12px 50px;
  background: var(--paper);
  color: var(--ink);
  border-left: 4px solid var(--grass);
  font-size: .875rem;
  line-height: 1.7;
}

.page-contact .pc-steps li::before {
  content: counter(pcstep, decimal-leading-zero);
  position: absolute;
  left: 15px;
  top: 13px;
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 700;
  color: var(--grass);
}

.page-contact .pc-steps li:last-child {
  border-left-color: var(--signal);
}

/* ---------- 合作与内容反馈 ---------- */
.page-contact .pc-partner__panel {
  padding: clamp(20px, 3.6vw, 38px);
  border: var(--pc-edge) solid var(--lime);
  box-shadow: var(--shadow-hard);
}

.page-contact .pc-partner__lead {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .pc-mail-topics {
  display: grid;
  gap: 10px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-contact .pc-mail-topics li {
  padding: 12px 14px;
  border: 1px solid rgba(215, 255, 63, .34);
  font-size: .86rem;
  line-height: 1.68;
  color: var(--steel);
}

.page-contact .pc-mail-topics strong {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .1em;
  font-weight: 600;
  color: var(--lime);
}

.page-contact .pc-mail-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--lime);
  color: var(--ink);
  font-size: .88rem;
  font-weight: 800;
  text-decoration: none;
  border: 2px solid var(--lime);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, .38);
  transition: transform .16s ease, background .16s ease, color .16s ease;
}

.page-contact .pc-mail-btn:hover,
.page-contact .pc-mail-btn:focus-visible {
  background: transparent;
  color: var(--lime);
  transform: translate(-2px, -2px);
}

/* ---------- 天津地区收束条 ---------- */
.page-contact .pc-local {
  border-top: var(--pc-edge) solid var(--grass);
  background: var(--paper);
  color: var(--ink);
}

.page-contact .pc-local__strip {
  display: grid;
  gap: 18px;
}

.page-contact .pc-local .h-section {
  color: var(--ink);
}

.page-contact .pc-local .h-section::before {
  background: var(--grass);
}

.page-contact .pc-local__strip p {
  margin: 0;
  max-width: 62ch;
  font-size: .9rem;
  line-height: 1.8;
  color: rgba(11, 31, 26, .82);
}

.page-contact .pc-local__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.page-contact .pc-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border: 2px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font-size: .84rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 3px 3px 0 rgba(11, 31, 26, .18);
  transition: background .16s ease, color .16s ease, transform .16s ease;
}

.page-contact .pc-pill:hover,
.page-contact .pc-pill:focus-visible {
  background: var(--ink);
  color: var(--lime);
  transform: translate(-1px, -1px);
}

.page-contact .pc-pill--top {
  margin-left: auto;
  border-style: dashed;
}

/* ---------- 响应式 ---------- */
@media (min-width: 780px) {
  .page-contact .pc-reply__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .pc-split {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, .82fr);
    align-items: start;
  }

  .page-contact .pc-case__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  }
}

@media (min-width: 880px) {
  .page-contact .pc-partner__panel {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    column-gap: clamp(22px, 3.4vw, 42px);
    align-items: start;
  }
}

@media (min-width: 820px) {
  .page-contact .pc-local__strip {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
    align-items: end;
  }

  .page-contact .pc-local__links {
    justify-content: flex-end;
  }

  .page-contact .pc-pill--top {
    margin-left: 0;
  }
}

@media (max-width: 479px) {
  .page-contact .pc-card__big--mail {
    font-size: 1rem;
  }

  .page-contact .pc-steps li {
    padding-left: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-card__big,
  .page-contact .pc-mail-btn,
  .page-contact .pc-pill {
    transition: none;
  }

  .page-contact .pc-mail-btn:hover,
  .page-contact .pc-pill:hover {
    transform: none;
  }
}