/* =========================================================
   page-contact / 合作与反馈
   作用域全部限定在 .page-contact 内
   ========================================================= */

.page-contact {
  display: block;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
  padding: 26px 0 44px;
}

.page-contact .breadcrumb {
  margin: 0 0 30px;
}

.page-contact .eyebrow {
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-contact h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6.6vw, 68px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 0 0 18px;
  max-width: 15em;
}

.page-contact .lead {
  color: var(--text);
  font-size: 17px;
  line-height: 1.72;
  max-width: var(--measure);
  margin: 0;
}

.page-contact .hero-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin: 32px 0 0;
  padding: 0;
}

.page-contact .hero-facts > div {
  background: var(--ink);
  padding: 14px 16px 18px;
}

.page-contact .hero-facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin: 0 0 8px;
}

.page-contact .hero-facts dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.4;
  color: var(--paper);
}

/* ---------- 章节通用 ---------- */

.page-contact .section {
  padding: 54px 0;
  border-top: 1px solid var(--line);
}

.page-contact .section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 18px;
  align-items: start;
  margin: 0 0 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.page-contact .section-num {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--orange);
  margin: 0;
}

.page-contact .section-title {
  font-family: var(--font-serif);
  font-size: clamp(21px, 3vw, 28px);
  font-weight: 600;
  line-height: 1.28;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-contact .section-sub {
  grid-column: 2;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
  margin: 0;
  max-width: 46em;
}

/* ---------- 01 来意分流 ---------- */

.page-contact .route-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .route-card {
  display: flex;
  flex-direction: column;
  background: var(--ink-2);
  padding: 20px 18px 22px;
  transition: background 140ms ease, box-shadow 140ms ease;
}

.page-contact .route-card:hover {
  background: var(--ink-3);
  box-shadow: inset 0 0 0 1px var(--orange);
}

.page-contact .route-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--orange);
  margin: 0 0 14px;
}

.page-contact .route-title {
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--paper);
  margin: 0 0 10px;
}

.page-contact .route-desc {
  flex: 1;
  font-size: 14px;
  line-height: 1.68;
  color: var(--text);
  margin: 0 0 20px;
}

.page-contact .route-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin: 0 0 10px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-contact .route-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 7px;
}

.page-contact .route-list li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .route-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  background: var(--cyan);
}

/* ---------- 流程信息图 ---------- */

.page-contact .flow-block {
  padding: 0 0 56px;
}

.page-contact .flow-figure {
  margin: 0;
}

/* ---------- 02 纠错清单 ---------- */

.page-contact .correction-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .check-panel {
  background: var(--indigo);
  border: 1px solid var(--line);
  padding: 24px 20px 26px;
}

.page-contact .check-title {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--paper);
  margin: 0 0 16px;
}

.page-contact .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .check-list li {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid rgba(237, 234, 227, 0.10);
  font-size: 14px;
  line-height: 1.65;
  color: var(--text);
}

.page-contact .check-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .check-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-contact .note-aside {
  background: var(--ink-2);
  border: 1px solid var(--line);
  padding: 24px 20px 26px;
}

.page-contact .aside-title {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--paper);
  margin: 0 0 16px;
}

.page-contact .note-aside p {
  font-size: 14px;
  line-height: 1.72;
  color: var(--text);
  margin: 0 0 14px;
}

.page-contact .note-aside p:last-child {
  margin-bottom: 0;
}

.page-contact .aside-link-line {
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.page-contact .note-aside a,
.page-contact .co-boundary a,
.page-contact .contact-hint a,
.page-contact .rs-note a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
  transition: color 140ms ease, border-color 140ms ease;
}

.page-contact .note-aside a:hover,
.page-contact .co-boundary a:hover,
.page-contact .contact-hint a:hover,
.page-contact .rs-note a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 03 栏目共建 ---------- */

.page-contact .co-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .co-card {
  display: flex;
  flex-direction: column;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-top: 2px solid var(--orange);
  padding: 22px 20px 24px;
  transition: background 140ms ease, border-color 140ms ease;
}

.page-contact .co-card:hover {
  background: var(--ink-3);
  border-color: var(--line-strong);
  border-top-color: var(--cyan);
}

.page-contact .co-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted);
  margin: 0 0 12px;
}

.page-contact .co-title {
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper);
  margin: 0 0 10px;
}

.page-contact .co-desc {
  flex: 1;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
  margin: 0 0 18px;
}

.page-contact .co-list {
  list-style: none;
  margin: 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 7px;
}

.page-contact .co-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .co-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .co-boundary {
  margin: 28px 0 0;
  padding: 18px 20px;
  background: var(--wine);
  border-left: 3px solid var(--orange);
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper);
  max-width: 62em;
}

/* ---------- 04 引用规范 ---------- */

.page-contact .cite-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .cite-block {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  padding: 22px 20px 24px;
}

.page-contact .cite-block--warn {
  background: var(--ink-3);
  border-left-color: var(--orange);
}

.page-contact .cite-head {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--paper);
  margin: 0 0 14px;
}

.page-contact .cite-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .cite-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.68;
  color: var(--text);
}

.page-contact .cite-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 1px;
  background: var(--muted);
}

.page-contact .cite-note {
  margin: 26px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
  max-width: var(--measure);
}

/* ---------- 05 联系方式 ---------- */

.page-contact .contact-section {
  background: var(--ink-2);
}

.page-contact .contact-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

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

.page-contact .contact-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .contact-row dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

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

.page-contact .contact-hint {
  margin: 28px 0 0;
  padding: 16px 18px;
  background: var(--ink);
  border-left: 3px solid var(--cyan);
  font-size: 14px;
  line-height: 1.72;
  color: var(--text);
  max-width: 56em;
}

/* ---------- 06 响应时间 ---------- */

.page-contact .rs-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-contact .rs-node {
  position: relative;
  padding: 0 0 24px 22px;
  border-left: 1px solid var(--line);
}

.page-contact .rs-node::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 4px;
  width: 9px;
  height: 9px;
  background: var(--orange);
}

.page-contact .rs-node:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-contact .rs-time {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  margin-bottom: 6px;
}

.page-contact .rs-label {
  display: block;
  font-size: 14px;
  line-height: 1.66;
  color: var(--text);
  max-width: 26em;
}

.page-contact .rs-note {
  margin: 34px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
  max-width: 62em;
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-contact .hero-facts {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .contact-row {
    grid-template-columns: 140px 1fr;
    gap: 20px;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-contact .route-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .page-contact .cite-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-contact .correction-grid {
    grid-template-columns: 1.55fr 1fr;
    gap: 28px;
  }

  .page-contact .contact-body {
    grid-template-columns: 1.35fr 1fr;
    gap: 40px;
    align-items: start;
  }

  .page-contact .rs-track {
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
  }

  .page-contact .rs-node {
    padding: 22px 22px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .page-contact .rs-node::before {
    left: 0;
    top: -5px;
  }

  .page-contact .rs-node:last-child {
    padding-right: 0;
  }

  .page-contact .rs-label {
    max-width: 18em;
  }
}

@media (min-width: 1020px) {
  .page-contact .route-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .page-contact .section {
    padding: 64px 0;
  }

  .page-contact .section-title {
    font-size: 28px;
  }

  .page-contact .section-num {
    font-size: 42px;
  }
}