.page-contact {
  padding-bottom: 0;
}

/* ---------- 面包屑 ---------- */
.page-contact .crumbs {
  padding-block: clamp(16px, 3vw, 28px) 0;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2.4vw, 22px);
  padding-block: clamp(20px, 3.6vw, 38px) clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--layer);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  width: clamp(70px, 24vw, 260px);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}

.page-contact .contact-hero__index {
  color: var(--cyan);
  margin: 0;
}

.page-contact .contact-hero h1 {
  margin: 0;
  font-family: var(--font-geo);
  font-size: clamp(30px, 7vw, 66px);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--text);
  max-width: 17ch;
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 60ch;
  color: var(--muted);
}

.page-contact .contact-hero__side {
  display: grid;
  gap: 6px;
  padding: 18px 20px 20px;
  background: linear-gradient(160deg, var(--panel), var(--ink) 85%);
  border-left: 2px solid var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

.page-contact .contact-hero__big {
  margin: 4px 0 0;
  font-family: var(--font-geo);
  font-size: clamp(28px, 6vw, 44px);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--cyan-hi);
  font-variant-numeric: tabular-nums;
}

.page-contact .contact-hero__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .contact-hero__sub {
  margin: 10px 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--layer);
  font-size: 12px;
  line-height: 1.7;
  color: var(--dim);
}

/* ---------- 章节通用 ---------- */
.page-contact .section {
  position: relative;
  padding-block: clamp(40px, 6vw, 78px);
  border-bottom: 1px solid var(--layer);
}

.page-contact .section__num {
  margin: 0 0 6px;
}

.page-contact .section__title {
  margin: 0 0 14px;
  max-width: 24ch;
}

.page-contact .section > .prose {
  margin: 0 0 clamp(22px, 3.4vw, 38px);
  max-width: 64ch;
}

/* ---------- 01 联系渠道 ---------- */
.page-contact .contact-topo {
  margin: 0 0 -34px;
  height: clamp(140px, 24vw, 280px);
  overflow: hidden;
  background: var(--ink);
}

.page-contact .contact-topo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.55;
}

.page-contact .contact-cards {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .ccard {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 20px 20px;
}

.page-contact .ccard__label {
  margin: 0;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-contact .ccard__value {
  margin: 2px 0 4px;
  font-family: var(--font-geo);
  font-size: clamp(18px, 4.6vw, 25px);
  font-weight: 600;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.page-contact .ccard--mail .ccard__value {
  color: var(--cyan-hi);
}

.page-contact .ccard--phone .ccard__value {
  color: var(--orange-soft);
  letter-spacing: 0.02em;
}

.page-contact .ccard__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .ccard__meta {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--layer);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--dim);
}

/* ---------- 02 描述建议与时效 ---------- */
.page-contact .brief-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
}

.page-contact .brief-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  counter-reset: none;
}

.page-contact .brief-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 18px 0 18px 18px;
  border-left: 1px solid var(--layer);
  position: relative;
}

.page-contact .brief-item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 26px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ink);
  border: 1.5px solid var(--cyan);
}

.page-contact .brief-item__idx {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-contact .brief-item__txt {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
  max-width: 62ch;
}

.page-contact .brief-item__txt a {
  color: var(--cyan-hi);
}

.page-contact .brief-side {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-contact .brief-card {
  padding: 20px 20px 22px;
}

.page-contact .brief-card__n {
  margin: 0;
  font-family: var(--font-geo);
  font-size: clamp(26px, 6.6vw, 38px);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--orange-soft);
  font-variant-numeric: tabular-nums;
}

.page-contact .brief-card--alt .brief-card__n {
  color: var(--blue);
}

.page-contact .brief-card__l {
  margin: 4px 0 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-contact .brief-card__d {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .brief-side__foot {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--dim);
}

.page-contact .brief-side__foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 03 常见问题分类 ---------- */
.page-contact .type-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact .tcard {
  padding: 0;
}

.page-contact .tcard > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 18px 18px 16px;
}

.page-contact .tcard > summary::-webkit-details-marker {
  display: none;
}

.page-contact .tcard > summary:focus-visible {
  outline: 2px solid var(--cyan-hi);
  outline-offset: -2px;
}

.page-contact .tcard__num {
  font-family: var(--font-geo);
  font-size: 22px;
  font-weight: 300;
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 1px var(--cyan);
  font-variant-numeric: tabular-nums;
  flex: none;
}

.page-contact .tcard__name {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text);
}

.page-contact .tcard__chev {
  flex: none;
  margin-left: auto;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 0.28s var(--ease);
}

.page-contact .tcard[open] .tcard__chev {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-contact .tcard[open] > summary {
  border-bottom: 1px solid var(--layer);
}

.page-contact .tcard__body {
  padding: 16px 18px 22px;
  display: grid;
  gap: 10px;
}

.page-contact .tcard__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 66ch;
}

.page-contact .tcard__body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 04 吉林地区 ---------- */
.page-contact .region-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 42px);
  align-items: start;
}

.page-contact .region-text .section__title {
  margin-bottom: 14px;
}

.page-contact .region-points {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .region-points li {
  padding: 14px 16px 16px;
  background: var(--panel);
  border-left: 2px solid var(--layer);
}

.page-contact .region-points__k {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin-bottom: 6px;
}

.page-contact .region-points p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--muted);
}

.page-contact .region-figure {
  margin: 0;
  border: 1px solid var(--layer);
  background: var(--ink);
}

.page-contact .region-figure .media-frame__cap {
  display: block;
  padding: 10px 14px 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--dim);
  border-top: 1px solid var(--layer);
}

/* ---------- 05 合作 ---------- */
.page-contact .partner-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-contact .partner-stat {
  padding: 16px 12px 18px;
  background: var(--panel);
  border-top: 2px solid var(--cyan);
  display: grid;
  gap: 4px;
  text-align: center;
}

.page-contact .partner-stat__n {
  font-family: var(--font-geo);
  font-size: clamp(26px, 7vw, 40px);
  font-weight: 300;
  letter-spacing: -0.03em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.page-contact .partner-stat__l {
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

.page-contact .partner-actions {
  display: grid;
  gap: 18px;
  padding: clamp(18px, 3vw, 26px);
  background: linear-gradient(120deg, var(--layer), var(--panel) 70%);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% 100%, 0 100%, 0 var(--cut));
}

.page-contact .partner-actions__note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text);
  max-width: 66ch;
}

.page-contact .partner-actions__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 底部备案条 ---------- */
.page-contact .contact-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin-block: clamp(30px, 4.4vw, 52px) clamp(34px, 5vw, 60px);
  padding: 16px 18px;
  border: 1px solid var(--layer);
  background: var(--panel);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--dim);
}

.page-contact .contact-strip__k {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-contact .contact-strip__v {
  font-variant-numeric: tabular-nums;
}

.page-contact .contact-strip a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .contact-strip__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  flex: none;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 780px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 8fr) minmax(0, 3fr);
    grid-template-areas:
      "index index"
      "title side"
      "lead side";
    column-gap: clamp(28px, 4.6vw, 68px);
    align-content: start;
    align-items: start;
  }

  .page-contact .contact-hero__index { grid-area: index; }
  .page-contact .contact-hero h1 { grid-area: title; }
  .page-contact .contact-hero__lead { grid-area: lead; }
  .page-contact .contact-hero__side { grid-area: side; }

  .page-contact .contact-topo {
    margin-bottom: -52px;
  }

  .page-contact .contact-cards {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .ccard--mail { grid-column: span 5; }
  .page-contact .ccard--phone { grid-column: span 4; }
  .page-contact .ccard--addr { grid-column: span 3; }

  .page-contact .brief-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    column-gap: clamp(28px, 4.4vw, 60px);
  }

  .page-contact .brief-item {
    padding: 20px 0 20px 22px;
  }

  .page-contact .type-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .region-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    column-gap: clamp(30px, 4.6vw, 64px);
  }

  .page-contact .region-figure {
    position: sticky;
    top: 90px;
  }

  .page-contact .partner-actions {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    align-items: center;
    gap: 26px;
  }

  .page-contact .partner-actions__btns {
    justify-content: flex-end;
  }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 1100px) {
  .page-contact .contact-cards {
    gap: 20px;
  }

  .page-contact .ccard {
    padding: 26px 24px 24px;
  }

  .page-contact .partner-stats {
    gap: 16px;
  }

  .page-contact .partner-stat {
    padding: 22px 16px 24px;
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .tcard__chev {
    transition: none;
  }
}
<<<END>>>