.page-contact {
  --ct-gap: clamp(20px, 3vw, 44px);
  --ct-pad: clamp(48px, 7vw, 96px);
  --ct-hair: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-contact .section {
  padding: var(--ct-pad) 0;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--moss);
}
.page-contact .breadcrumb a {
  color: var(--kiwi-deep);
  text-decoration: none;
}
.page-contact .breadcrumb a:hover {
  text-decoration: underline;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: var(--ct-gap);
  padding: 26px 0 clamp(48px, 7vw, 88px);
}
.page-contact .hero-copy {
  min-width: 0;
}
.page-contact .page-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--kiwi);
}
.page-contact .page-title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(38px, 7.4vw, 76px);
  line-height: 1.02;
  letter-spacing: 0.01em;
  color: var(--ink);
}
.page-contact .page-lead {
  margin: 0;
  max-width: 34em;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.75;
  color: var(--steel);
}
.page-contact .hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 4vw, 48px);
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-contact .hero-facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-contact .fact-num {
  display: flex;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 36px);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--kiwi-deep);
}
.page-contact .fact-unit {
  margin-left: 2px;
  font-size: 0.5em;
  color: var(--moss);
}
.page-contact .fact-txt {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--moss);
}

.page-contact .hero-visual {
  position: relative;
  margin: 0;
  border: 1px solid var(--line-strong);
  background: var(--mist);
  box-shadow: var(--shadow-paper);
  overflow: hidden;
}
.page-contact .hero-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .hero-visual figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--moss);
}

/* ---------- 章节标题 ---------- */
.page-contact .sec-head {
  max-width: 46em;
  margin-bottom: clamp(24px, 4vw, 44px);
}
.page-contact .sec-num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--kiwi);
}
.page-contact .section-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(26px, 3.8vw, 42px);
  line-height: 1.15;
  color: var(--ink);
}
.page-contact .section-note {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--moss);
}

/* ---------- 通用按钮 ---------- */
.page-contact .btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-contact .btn-solid {
  background: var(--kiwi);
  border-color: var(--kiwi);
  color: #fff;
}
.page-contact .btn-solid:hover {
  background: var(--kiwi-deep);
  border-color: var(--kiwi-deep);
}
.page-contact .btn-ghost:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}
.page-contact .link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: clamp(20px, 3vw, 30px) 0 0;
}

/* ---------- 渠道卡片 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--ct-gap);
}
.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 2.6vw, 30px);
  border: 1px solid var(--line-strong);
  background: #fff;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.page-contact .channel-card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 0;
  background: var(--kiwi);
  transition: height 0.35s var(--ease);
}
.page-contact .channel-card:hover {
  transform: translateY(-5px);
  border-color: var(--kiwi);
  box-shadow: var(--shadow-paper);
}
.page-contact .channel-card:hover::after {
  height: 100%;
}
.page-contact .card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.page-contact .card-num {
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--kiwi);
  padding-bottom: 3px;
  border-bottom: 2px solid var(--kiwi);
}
.page-contact .tag {
  padding: 3px 8px;
  border: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.page-contact .tag-arch { color: var(--skin); }
.page-contact .tag-kiwi { color: var(--kiwi); }
.page-contact .tag-lime { color: var(--kiwi-deep); }
.page-contact .card-title {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 24px;
  line-height: 1.2;
  color: var(--kiwi-deep);
}
.page-contact .card-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--ink);
  word-break: break-word;
}
.page-contact .card-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--steel);
}
.page-contact .card-when {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
  font-size: 13px;
  line-height: 1.7;
  color: var(--moss);
}

/* ---------- 纠错入口 ---------- */
.page-contact .fix-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--ct-gap);
}
.page-contact .fix-copy {
  min-width: 0;
}
.page-contact .fix-copy p {
  margin: 0 0 16px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--steel);
}
.page-contact .fix-lead {
  font-size: 17px !important;
  color: var(--ink) !important;
}
.page-contact .fix-foot {
  padding: 12px 14px;
  border-left: 3px solid var(--kiwi);
  background: var(--mist);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--kiwi-deep) !important;
}
.page-contact .fix-fields {
  padding: clamp(22px, 2.8vw, 34px);
  border: 1px solid var(--line-strong);
  background: #fff;
  box-shadow: var(--shadow-paper);
}
.page-contact .fields-lead {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: 0.02em;
  color: var(--ink);
}
.page-contact .field-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .field-list li {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line-strong);
}
.page-contact .field-list li:first-child {
  border-top: 1px dashed var(--line-strong);
}
.page-contact .field-idx {
  grid-row: 1 / span 2;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--kiwi);
}
.page-contact .field-name {
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
}
.page-contact .field-hint {
  font-size: 13px;
  line-height: 1.65;
  color: var(--moss);
}
.page-contact .fields-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--moss);
}

/* ---------- 授权与引用 ---------- */
.page-contact .split-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--ct-gap);
}
.page-contact .split-copy {
  min-width: 0;
}
.page-contact .split-copy p {
  margin: 0 0 16px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--steel);
}
.page-contact .split-aside {
  padding: clamp(22px, 2.8vw, 32px);
  border: 1px solid var(--line-strong);
  background: var(--mist);
}
.page-contact .aside-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 20px;
  color: var(--kiwi-deep);
}
.page-contact .aside-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .aside-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(11, 15, 14, 0.09);
  font-size: 15px;
  line-height: 1.65;
  color: var(--steel);
}
.page-contact .li-mono {
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--kiwi);
}
.page-contact .aside-foot {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--moss);
}

/* ---------- 合作洽谈（深色区） ---------- */
.page-contact .section-partner {
  background: var(--ink);
  color: var(--paper);
}
.page-contact .section-partner .sec-num {
  color: var(--lime);
}
.page-contact .section-partner .section-title {
  color: var(--paper);
}
.page-contact .section-partner .section-note {
  color: rgba(247, 246, 241, 0.72);
}
.page-contact .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid var(--line-dark);
  background: var(--line-dark);
}
.page-contact .partner-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 2.6vw, 32px);
  background: var(--ink);
}
.page-contact .partner-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--lime);
}
.page-contact .partner-name {
  margin: 0;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-dark);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(22px, 2.4vw, 28px);
  color: var(--paper);
}
.page-contact .partner-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 246, 241, 0.74);
}
.page-contact .partner-meta {
  margin: auto 0 0;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lime);
}
.page-contact .partner-note {
  margin-top: clamp(28px, 4vw, 46px);
  padding: clamp(22px, 2.6vw, 32px);
  border: 1px solid var(--line-dark);
  border-left: 4px solid var(--kiwi);
}
.page-contact .note-title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--lime);
}
.page-contact .note-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .note-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(247, 246, 241, 0.8);
}
.page-contact .note-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 2px;
  background: var(--kiwi);
}

/* ---------- 处理流程 ---------- */
.page-contact .flow-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background: var(--line);
}
.page-contact .flow-step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(20px, 2.4vw, 30px) clamp(16px, 2vw, 24px);
  background: var(--paper);
}
.page-contact .flow-step::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: var(--line-strong);
}
.page-contact .flow-step--key::before {
  background: var(--kiwi);
}
.page-contact .flow-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--moss);
}
.page-contact .flow-step--key .flow-idx {
  color: var(--kiwi);
}
.page-contact .flow-name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 20px;
  color: var(--ink);
}
.page-contact .flow-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--moss);
}
.page-contact .flow-time {
  margin-top: auto;
  padding-top: 10px;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--kiwi-deep);
}
.page-contact .flow-figure {
  margin: clamp(28px, 4vw, 48px) 0 0;
  border: 1px solid var(--line-strong);
  background: var(--mist);
  overflow: hidden;
}
.page-contact .flow-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 常见来信 ---------- */
.page-contact .mail-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}
.page-contact .mail-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.page-contact .mail-type {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
}
.page-contact .mail-route {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--kiwi-deep);
}
.page-contact .mail-foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--kiwi);
  background: var(--mist);
  font-size: 15px;
  line-height: 1.75;
  color: var(--steel);
}
.page-contact .contact-tail {
  margin-top: clamp(36px, 5vw, 60px);
  padding-top: clamp(24px, 3vw, 36px);
  border-top: 1px solid var(--line-strong);
}
.page-contact .tail-text {
  margin: 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--steel);
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 760px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .mail-list li {
    grid-template-columns: minmax(0, 1fr) 220px;
    align-items: baseline;
  }
  .page-contact .mail-route {
    text-align: right;
  }
  .page-contact .note-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: 7fr 5fr;
    align-items: end;
  }
  .page-contact .fix-wrap {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }
  .page-contact .split-block {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .flow-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-contact .notes-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .channel-card::after,
  .page-contact .btn {
    transition: none;
  }
  .page-contact .channel-card:hover {
    transform: none;
  }
}