.page-contact {
  color: var(--ink);
  font-family: var(--font-sans);
  padding-top: calc(var(--bar) + 20px);
  overflow-x: hidden;
}

.page-contact .wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 20px;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  margin-bottom: 28px;
}

.page-contact .breadcrumb a {
  color: var(--ink-3);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--mint);
  border-bottom-color: var(--mint);
}

.page-contact .breadcrumb-sep {
  color: var(--line);
}

.page-contact .breadcrumb [aria-current="page"] {
  color: var(--mint);
}

/* ---------- 首屏 ---------- */
.page-contact .hero {
  max-width: 42em;
  margin-bottom: 12px;
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--amber);
  margin: 0 0 12px;
}

.page-contact .hero h1 {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  color: var(--ink);
}

.page-contact .hero .lead {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-2);
  margin: 0;
  max-width: 34em;
}

/* ---------- 章节节奏 ---------- */
.page-contact .section {
  padding-block: 44px;
}

.page-contact .sec-channels {
  padding-top: 28px;
}

.page-contact .chapter {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 28px;
}

.page-contact .chapter-num {
  font-family: var(--font-serif);
  font-size: 34px;
  line-height: 1;
  font-weight: 700;
  color: #2E6255;
  letter-spacing: -0.02em;
}

.page-contact .chapter-title {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(22px, 4.4vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--ink);
}

.page-contact .chapter-head .eyebrow {
  margin-bottom: 8px;
}

/* ---------- 分栏与通道卡 ---------- */
.page-contact .contact-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-contact .channel-card {
  background: var(--stand);
  border: 2px solid var(--line);
  box-shadow: var(--shadow);
  padding: 24px 20px;
  margin-bottom: 22px;
  transition: border-color 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-contact .channel-card:last-child {
  margin-bottom: 0;
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: var(--mint);
}

.page-contact .card-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
  margin: 0 0 10px;
}

.page-contact .channel-value {
  font-family: var(--font-mono);
  font-size: clamp(17px, 5vw, 30px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--mint);
  margin: 0 0 16px;
  word-break: break-all;
}

.page-contact .card-title {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
  margin: 0 0 10px;
}

.page-contact .card-note {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-2);
  margin: 0 0 16px;
}

.page-contact .card-fit {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-3);
  margin: 0 0 8px;
  padding-top: 10px;
  border-top: 2px solid var(--line);
}

.page-contact .fit-k {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold);
  padding-top: 2px;
}

/* ---------- 侧列媒体与目录 ---------- */
.page-contact .side-col {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-contact .media {
  margin: 0;
  background: var(--track);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

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

.page-contact .media-caption {
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--ink-3);
  padding: 10px 12px;
  border-top: 2px solid var(--line);
}

.page-contact .chapter-nav {
  border-top: 2px solid var(--line);
}

.page-contact .chapter-nav:empty {
  display: none;
}

.page-contact .chapter-nav a {
  display: block;
  padding: 11px 4px;
  border-bottom: 2px solid var(--line);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink-2);
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-contact .chapter-nav a:hover,
.page-contact .chapter-nav a:focus-visible,
.page-contact .chapter-nav a[data-current] {
  color: var(--mint);
  padding-left: 10px;
}

/* ---------- 准备清单 ---------- */
.page-contact .prepare-body {
  max-width: 48em;
}

.page-contact .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--line);
}

.page-contact .check-item label {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 2px solid var(--line);
  cursor: pointer;
  transition: background 0.2s var(--ease);
}

.page-contact .check-item label:hover {
  background: rgba(79, 240, 192, 0.04);
}

.page-contact .check-box {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  margin: 3px 0 0;
  border: 2px solid var(--line);
  background: var(--track);
  display: grid;
  place-content: center;
  cursor: pointer;
  transition: border-color 0.18s var(--ease);
}

.page-contact .check-box::after {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--mint);
  transform: scale(0);
  transition: transform 0.18s var(--ease);
}

.page-contact .check-box:checked {
  border-color: var(--mint);
}

.page-contact .check-box:checked::after {
  transform: scale(1);
}

.page-contact .check-box:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

.page-contact .check-txt {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-contact .check-txt strong {
  display: block;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 3px;
}

.page-contact .check-box:checked + .check-txt strong {
  color: var(--mint);
}

.page-contact .tip {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--ink-3);
  margin: 18px 0 0;
}

/* ---------- 回复节奏 ---------- */
.page-contact .pace-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-contact .pace-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--line);
}

.page-contact .pace-list li {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 2px solid var(--line);
}

.page-contact .pace-num {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--mint);
  padding-top: 3px;
}

.page-contact .pace-list strong {
  display: block;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
  margin-bottom: 6px;
}

.page-contact .pace-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-contact .pace-more {
  max-width: 42em;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--ink-2);
  margin: 26px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--amber);
}

.page-contact a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 2px solid var(--line);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact a:hover,
.page-contact a:focus-visible {
  color: var(--mint-hi);
  border-bottom-color: var(--mint-hi);
}

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

/* ---------- 共建合作 ---------- */
.page-contact .coop-lead {
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--ink-2);
  margin: 0 0 28px;
}

.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .coop-card {
  background: var(--stand);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-sm);
  padding: 22px 18px;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .coop-card:hover {
  transform: translate(-2px, -2px);
  border-color: var(--mint);
}

.page-contact .coop-scale {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--amber);
  margin: 0 0 8px;
}

.page-contact .coop-card h3 {
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--ink);
  margin: 0 0 8px;
}

.page-contact .coop-card p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-2);
  margin: 0;
}

.page-contact .coop-ask {
  margin-top: 30px;
  padding: 24px 20px;
  border: 2px solid var(--line);
  background: var(--track);
}

.page-contact .coop-ask h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  margin: 0 0 16px;
}

.page-contact .coop-ask ul {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .coop-ask li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-contact .coop-ask li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 8px;
  background: var(--amber);
}

.page-contact .coop-ask p {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-2);
  margin: 0;
}

/* ---------- 底部横带 ---------- */
.page-contact .band {
  margin-top: 36px;
  padding-block: 36px;
  background: var(--stand);
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
}

.page-contact .band-title {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  margin: 0 0 22px;
}

.page-contact .band-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin: 0;
}

.page-contact .band-item dt {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--ink-3);
  margin-bottom: 6px;
}

.page-contact .band-item dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-2);
  word-break: break-all;
}

.page-contact .band-note {
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--ink-3);
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 2px solid var(--line);
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-contact .wrap {
    padding-inline: 32px;
  }

  .page-contact .hero .lead {
    font-size: 17px;
  }

  .page-contact .band-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 22px 30px;
  }

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

  .page-contact .channel-card {
    padding: 28px 26px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-contact {
    padding-top: 64px;
    padding-left: var(--rail);
  }

  .page-contact .wrap {
    padding-inline: 40px;
  }

  .page-contact .hero {
    margin-bottom: 20px;
  }

  .page-contact .section {
    padding-block: 84px;
  }

  .page-contact .sec-channels {
    padding-top: 36px;
  }

  .page-contact .contact-split {
    grid-template-columns: 58fr 42fr;
    gap: 36px;
    align-items: start;
  }

  .page-contact .chapter {
    gap: 22px;
    margin-bottom: 38px;
  }

  .page-contact .chapter-num {
    font-size: 52px;
  }

  .page-contact .pace-grid {
    grid-template-columns: 58fr 42fr;
    gap: 44px;
  }

  .page-contact .coop-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .page-contact .coop-ask {
    padding: 30px 28px;
  }

  .page-contact .band {
    margin-top: 48px;
    padding-block: 44px;
  }

  .page-contact .band-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
<<<END>>>