.page-contact {
  --ct-sec: clamp(44px, 7vw, 92px);
  --ct-dot: rgba(11, 27, 43, 0.07);
  --ct-grid: rgba(250, 247, 240, 0.06);
}

/* ===== 首屏档案章 ===== */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 48px) 0 clamp(46px, 8vw, 104px);
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(116deg, rgba(255, 77, 46, 0.22), rgba(255, 77, 46, 0) 44%),
    repeating-linear-gradient(90deg, var(--ct-grid) 0 1px, transparent 1px 86px);
}

.page-contact .contact-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  align-items: end;
}

.page-contact .contact-hero__type {
  max-width: 48ch;
}

.page-contact .contact-hero .breadcrumbs__link {
  color: var(--on-dark);
  text-decoration: none;
}

.page-contact .contact-hero .breadcrumbs__link:hover,
.page-contact .contact-hero .breadcrumbs__link:focus-visible {
  color: var(--neon);
}

.page-contact .contact-hero .breadcrumbs__sep,
.page-contact .contact-hero .breadcrumbs__item {
  color: var(--on-dark-dim);
}

.page-contact .contact-hero__title {
  margin: 16px 0 0;
  font-size: clamp(30px, 7vw, 58px);
  line-height: 1.03;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-contact .contact-hero__lede {
  margin: 18px 0 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.82;
  color: var(--on-dark);
}

.page-contact .contact-hero__rail {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--on-dark);
}

.page-contact .contact-hero__figure {
  margin: 0;
  border: 1px solid var(--line-dark);
}

.page-contact .contact-hero .figure__cap {
  color: var(--on-dark-dim);
}

@media (min-width: 1000px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-contact .contact-hero__figure {
    transform: translateY(-14px) rotate(-0.6deg);
  }
}

/* ===== 主体分区与颗粒底 ===== */
.page-contact .contact-body {
  background-color: var(--warm);
  background-image: radial-gradient(var(--ct-dot) 1px, transparent 1.1px);
  background-size: 4px 4px;
}

.page-contact .contact-section {
  padding: var(--ct-sec) 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-body > .contact-section:first-child {
  border-top: 0;
}

/* ===== 编号章节头 ===== */
.page-contact .contact-head {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-contact .contact-head .num-tag {
  font-family: var(--font-mono);
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--flame);
}

.page-contact .contact-head__text h2 {
  margin: 0;
  font-size: clamp(22px, 3.6vw, 34px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  font-weight: 800;
  color: var(--text);
}

.page-contact .contact-head__lede {
  margin: 10px 0 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-mid);
}

@media (min-width: 880px) {
  .page-contact .contact-head {
    grid-template-columns: minmax(72px, 96px) minmax(0, 1fr);
    gap: clamp(18px, 3vw, 40px);
    align-items: start;
  }
}

/* ===== 01 联系硬事实 ===== */
.page-contact .contact-plate {
  display: grid;
  gap: clamp(20px, 3.4vw, 40px);
}

.page-contact .facts {
  display: grid;
  gap: 14px;
}

.page-contact .fact {
  padding: 20px 20px 22px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 2px solid var(--flame);
  box-shadow: var(--shadow);
}

.page-contact .fact__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--concrete);
}

.page-contact .fact__value {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.4vw, 21px);
  line-height: 1.35;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--deep);
  overflow-wrap: anywhere;
}

.page-contact .fact--wide .fact__value {
  font-size: clamp(22px, 4.2vw, 34px);
}

.page-contact .fact__value--addr {
  font-family: var(--font-sans);
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: 0;
}

.page-contact .fact__note {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-mid);
}

.page-contact .contact-plate__figure {
  margin: 0;
}

@media (min-width: 980px) {
  .page-contact .contact-plate {
    grid-template-columns: minmax(0, 1.26fr) minmax(0, 0.74fr);
    align-items: start;
  }

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

  .page-contact .fact--wide {
    grid-column: 1 / -1;
  }
}

/* ===== 02 招商邮件规则 ===== */
.page-contact .mail-rule {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3vw, 32px) clamp(20px, 3.2vw, 36px);
  background: var(--deep);
  border-left: 3px solid var(--flame);
}

.page-contact .mail-rule::after {
  content: "";
  position: absolute;
  right: -46px;
  top: -46px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(42, 245, 214, 0.16), transparent 68%);
  pointer-events: none;
}

.page-contact .mail-rule__line {
  position: relative;
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 4.6vw, 38px);
  letter-spacing: 0.03em;
  color: var(--chalk);
  overflow-wrap: anywhere;
}

.page-contact .mail-rule__hint {
  position: relative;
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--on-dark);
}

.page-contact .cat-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .cat {
  position: relative;
  padding: 8px 16px 8px 28px;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--text);
}

.page-contact .cat::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  background: var(--flame);
  transform: rotate(45deg);
}

.page-contact .cat:nth-child(even)::before {
  background: var(--navy);
}

.page-contact .cat-note {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-mid);
}

/* ===== 03 回复窗口 ===== */
.page-contact .window {
  padding: clamp(22px, 3.4vw, 34px);
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.page-contact .window__track {
  position: relative;
  height: 8px;
  background: rgba(11, 27, 43, 0.09);
  border: 1px solid var(--line);
}

.page-contact .window__fill {
  position: absolute;
  left: 34%;
  right: 12%;
  top: 0;
  bottom: 0;
  background: linear-gradient(90deg, var(--neon), var(--flame));
}

.page-contact .window__time {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(22px, 4vw, 32px);
  letter-spacing: 0.04em;
  color: var(--deep);
}

.page-contact .window__days {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--concrete);
}

.page-contact .window__list {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-contact .window__list li {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 13px 0;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text);
}

.page-contact .window__list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .window__list .dot {
  margin-top: 8px;
}

@media (min-width: 880px) {
  .page-contact .window {
    display: grid;
    grid-template-columns: minmax(0, 0.68fr) minmax(0, 1fr);
    gap: clamp(24px, 4vw, 48px);
    align-items: start;
  }

  .page-contact .window__list {
    margin-top: 0;
  }
}

/* ===== 04 寄件与备案印章 ===== */
.page-contact .stamp {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  padding: clamp(22px, 3.4vw, 38px);
  background: var(--deep);
  border: 1px solid var(--line-dark);
}

.page-contact .stamp__seal svg {
  width: clamp(84px, 14vw, 128px);
  height: auto;
  display: block;
  color: var(--flame);
  opacity: 0.92;
}

.page-contact .stamp__seal circle,
.page-contact .stamp__seal path,
.page-contact .stamp__seal line {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
}

.page-contact .stamp__rows {
  display: grid;
  gap: 14px;
  margin: 0;
}

.page-contact .stamp__rows > div {
  display: grid;
  gap: 5px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .stamp__rows > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .stamp__rows dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--on-dark-dim);
}

.page-contact .stamp__rows dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--chalk);
  overflow-wrap: anywhere;
}

.page-contact .stamp__code {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

@media (min-width: 820px) {
  .page-contact .stamp {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: center;
  }
}

/* ===== 后续阅读入口 ===== */
.page-contact .contact-next__title {
  margin: 0 0 clamp(20px, 3vw, 30px);
  font-size: clamp(20px, 3vw, 26px);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .next-grid {
  display: grid;
  gap: 12px;
}

.page-contact .next-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 20px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  text-decoration: none;
  color: var(--text);
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.page-contact .next-card:hover,
.page-contact .next-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--flame);
  box-shadow: var(--shadow);
}

.page-contact .next-card__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--concrete);
}

.page-contact .next-card__name {
  font-size: 15px;
  line-height: 1.7;
}

.page-contact .next-card__go {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--flame);
}

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

@media (min-width: 1080px) {
  .page-contact .next-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-hero__figure {
    transform: none;
  }

  .page-contact .next-card {
    transition: none;
  }

  .page-contact .next-card:hover,
  .page-contact .next-card:focus-visible {
    transform: none;
  }
}