.page-contact {
  background: var(--sand);
  color: var(--ink);
  font-family: var(--font-body);
}

/* ============ 首屏 ============ */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--on-dark);
}

.page-contact .contact-hero .hero-media {
  position: absolute;
  inset: 0;
}

.page-contact .contact-hero .hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(27, 23, 18, 0.58) 0%, rgba(27, 23, 18, 0.86) 48%, rgba(27, 23, 18, 0.97) 100%);
}

.page-contact .contact-hero .hero-body {
  position: relative;
  z-index: 1;
  padding-top: 30px;
  padding-bottom: 38px;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 20px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--on-dark-soft);
}

.page-contact .breadcrumb a {
  color: var(--on-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--line-dark);
  transition: border-color 0.2s var(--ease);
}

.page-contact .breadcrumb a:hover {
  border-bottom-color: var(--flood);
}

.page-contact .hero-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--flood);
}

.page-contact h1 {
  margin: 0 0 16px;
  max-width: 18em;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 6.4vw, 2.75rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--sand);
}

.page-contact .contact-hero .lede {
  margin: 0 0 26px;
  max-width: 36em;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--on-dark);
}

.page-contact .contact-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-contact .contact-quick li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  background: rgba(20, 17, 13, 0.72);
}

.page-contact .quick-label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--on-dark-soft);
}

.page-contact .quick-value {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--sand);
  word-break: break-all;
}

/* ============ 联络通道 ============ */
.page-contact .channels {
  padding: 40px 0 4px;
}

.page-contact .channels .section-head {
  margin-bottom: 24px;
}

.page-contact .channels-grid {
  display: grid;
  gap: 20px;
}

.page-contact .channels-main {
  display: grid;
  gap: 16px;
}

.page-contact .channels-side {
  display: grid;
  gap: 16px;
  align-content: start;
}

/* 联系卡 */
.page-contact .channel-card {
  position: relative;
  padding: 22px 20px 22px 24px;
  background: var(--sand-lift);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-1);
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--pitch);
  transition: background-color 0.24s var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-2px);
  border-color: rgba(47, 143, 78, 0.45);
  box-shadow: 0 2px 0 rgba(27, 23, 18, 0.05), 0 20px 36px -24px rgba(27, 23, 18, 0.62);
}

.page-contact .channel-card:hover::before {
  background: var(--flood);
}

.page-contact .channel-index {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--pitch);
}

.page-contact .channel-card h3 {
  margin: 0 0 10px;
  font-size: 1.1875rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--ink);
}

.page-contact .channel-card p {
  margin: 0 0 14px;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--stone);
}

.page-contact .channel-value {
  display: block;
  padding: 12px 14px;
  background: var(--sand);
  border: 1px dashed var(--line);
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
  word-break: break-all;
}

.page-contact .channel-card .channel-foot {
  margin: 12px 0 0;
  font-size: 0.8125rem;
  line-height: 1.68;
  color: var(--stone);
}

/* 表单字段清单 */
.page-contact .field-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .field-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--stone);
}

.page-contact .field-no {
  flex: none;
  margin-top: 3px;
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
  color: var(--sand-lift);
  background: var(--pitch);
  border-radius: 2px;
}

/* ============ 右侧说明牌 ============ */
.page-contact .side-figure {
  margin: 0;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--ink);
}

.page-contact .side-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-contact .side-plate {
  padding: 20px;
  background: var(--sand-lift);
  border: 1px solid var(--line-soft);
  border-top: 3px solid var(--flood);
  border-radius: 0 0 var(--r-md) var(--r-md);
}

.page-contact .side-plate--partner {
  border-top-color: var(--pitch);
  background: rgba(47, 143, 78, 0.07);
}

.page-contact .plate-key {
  display: inline-block;
  margin: 0 0 12px;
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--sand-lift);
  background: var(--ink);
  border-radius: 2px;
}

.page-contact .side-plate h3 {
  margin: 0 0 10px;
  font-size: 1.0625rem;
  font-weight: 800;
  line-height: 1.38;
  color: var(--ink);
}

.page-contact .side-plate p {
  margin: 0 0 12px;
  font-size: 0.875rem;
  line-height: 1.74;
  color: var(--stone);
}

.page-contact .side-plate .plate-foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 0.8125rem;
  line-height: 1.72;
  color: var(--stone);
}

/* 勘误清单 */
.page-contact .errata-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .errata-list label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  line-height: 1.66;
  color: var(--stone);
  cursor: pointer;
}

.page-contact .errata-list input[type="checkbox"] {
  flex: none;
  width: 16px;
  height: 16px;
  margin: 3px 0 0;
  accent-color: var(--pitch);
  cursor: pointer;
}

/* 合作方向 */
.page-contact .partner-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .partner-list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--stone);
}

.page-contact .partner-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 2px;
  background: var(--pitch);
}

/* ============ 地址与回复节奏 ============ */
.page-contact .contact-tail {
  position: relative;
  margin-top: 44px;
  padding: 44px 0 52px;
  background: var(--ink);
  color: var(--on-dark);
}

.page-contact .contact-tail::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--pitch) 0 58%, var(--flood) 58% 100%);
}

.page-contact .tail-grid {
  display: grid;
  gap: 30px;
}

.page-contact .tail-block h3 {
  margin: 0 0 14px;
  font-size: 1.1875rem;
  font-weight: 800;
  line-height: 1.34;
  color: var(--sand);
}

.page-contact .tail-address {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--sand);
  word-break: break-word;
}

.page-contact .tail-text {
  margin: 0;
  max-width: 34em;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--on-dark);
}

.page-contact .tail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-dark);
}

.page-contact .tail-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line-dark);
  font-size: 0.875rem;
  line-height: 1.68;
  color: var(--on-dark);
}

.page-contact .tail-time {
  flex: none;
  min-width: 112px;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--flood);
}

.page-contact .tail-note {
  margin: 28px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-dark);
  max-width: 54em;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--on-dark-soft);
}

.page-contact .tail-note a {
  color: var(--flood);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 121, 43, 0.5);
  transition: border-color 0.2s var(--ease);
}

.page-contact .tail-note a:hover {
  border-bottom-color: var(--flood);
}

/* ============ 动效 ============ */
@keyframes contact-rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-contact .channel-card,
  .page-contact .side-plate {
    animation: contact-rise 0.4s var(--ease) both;
  }

  .page-contact .channel-card:nth-child(2) {
    animation-delay: 0.06s;
  }

  .page-contact .channel-card:nth-child(3) {
    animation-delay: 0.12s;
  }

  .page-contact .side-plate:nth-of-type(1) {
    animation-delay: 0.09s;
  }

  .page-contact .side-plate:nth-of-type(2) {
    animation-delay: 0.15s;
  }
}

/* ============ 断点 ============ */
@media (min-width: 640px) {
  .page-contact .contact-hero .hero-body {
    padding-top: 40px;
    padding-bottom: 48px;
  }

  .page-contact .contact-hero .lede {
    font-size: 1rem;
  }

  .page-contact .contact-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .channel-card {
    padding: 24px 24px 24px 28px;
  }
}

@media (min-width: 960px) {
  .page-contact .channels {
    padding-top: 54px;
  }

  .page-contact .channels-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 34px;
  }

  .page-contact .channels-main {
    gap: 18px;
  }

  .page-contact .side-plate {
    padding: 22px 22px 24px;
  }

  .page-contact .contact-tail {
    margin-top: 56px;
    padding-top: 54px;
    padding-bottom: 62px;
  }

  .page-contact .tail-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 46px;
  }
}
<<<END>>>