/* ===== 联系与反馈 · 页面专属样式（.page-contact） ===== */
.page-contact {
  --contact-section-gap: clamp(48px, 8vw, 88px);
  --punch-line: rgba(233, 242, 251, .28);
  display: block;
}

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

.page-contact .breadcrumbs {
  padding-top: clamp(18px, 3vw, 30px);
  padding-bottom: 14px;
  font-size: 13px;
}

/* ---------- 首屏 ---------- */
.page-contact .hero-stage {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 430px;
  border: 2px solid var(--line);
  background: var(--ink-deep);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-contact .hero-stage__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .5;
}

.page-contact .hero-stage__veil {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(37, 225, 210, .055) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(90deg, rgba(37, 225, 210, .055) 0 1px, transparent 1px 48px),
    linear-gradient(180deg, rgba(8, 20, 38, .18) 0%, rgba(8, 20, 38, .9) 66%, var(--ink) 100%);
}

.page-contact .hero-stage__body {
  position: relative;
  z-index: 1;
  max-width: 820px;
  padding: clamp(24px, 5vw, 52px);
}

.page-contact .hero-stage__body h1 {
  margin: 10px 0 14px;
  font-size: clamp(29px, 5.4vw, 46px);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--ice);
}

.page-contact .hero-stage__body .lede {
  max-width: 64ch;
  color: var(--mist);
  line-height: 1.8;
}

/* ---------- 通用排版 ---------- */
.page-contact .section-block {
  margin-top: var(--contact-section-gap);
}

.page-contact .section-head {
  display: grid;
  gap: 10px;
  max-width: 760px;
  margin-bottom: 26px;
}

.page-contact .section-title {
  margin: 0;
  font-size: clamp(23px, 3.4vw, 32px);
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--ice);
}

.page-contact h3 {
  margin: 0;
  font-size: 19px;
  line-height: 1.38;
  letter-spacing: -.01em;
  color: var(--ice);
}

.page-contact p {
  margin: 0;
  color: var(--mist);
  line-height: 1.75;
}

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

/* ---------- 三条联络通道 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 32px 22px 22px;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: var(--cyan);
}

.page-contact .channel-card--coral::before { background: var(--coral); }
.page-contact .channel-card--gold::before { background: var(--gold); }

.page-contact .channel-card__pin {
  position: absolute;
  top: 17px;
  right: 18px;
  width: 36px;
  height: 12px;
  border-top: 1px dashed var(--line);
  background-image: radial-gradient(circle, var(--punch-line) 2.4px, transparent 3px);
  background-size: 12px 12px;
  background-repeat: repeat-x;
}

.page-contact .channel-card__value {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.55;
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .channel-card--gold .channel-card__value {
  color: var(--gold);
  font-size: 14px;
}

.page-contact .channel-card__meta {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--mist);
}

/* ---------- 反馈区三个板块 ---------- */
.page-contact .feedback-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.page-contact .feedback-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 22px;
  background: var(--panel);
  border: 2px solid var(--line);
  border-left: 6px solid var(--violet);
  box-shadow: var(--shadow-soft);
}

.page-contact .feedback-card:nth-child(2) { border-left-color: var(--cyan); }
.page-contact .feedback-card:nth-child(3) { border-left-color: var(--coral); }

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

.page-contact .submit-tips li {
  position: relative;
  padding-left: 17px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

.page-contact .submit-tips li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--gold);
}

.page-contact .board-note {
  margin-top: 22px;
  padding-left: 18px;
  border-left: 4px solid var(--violet);
  font-size: 15px;
}

/* ---------- 每周三同步节奏 ---------- */
.page-contact .sync-block {
  margin-top: var(--contact-section-gap);
  padding: clamp(36px, 6vw, 68px) 0;
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
  background-image:
    radial-gradient(620px 260px at 10% 0%, rgba(124, 92, 255, .18), transparent 70%),
    radial-gradient(520px 220px at 88% 100%, rgba(37, 225, 210, .12), transparent 72%),
    linear-gradient(180deg, var(--ink-deep), var(--ink));
}

.page-contact .step-rail {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 26px;
}

.page-contact .step-rail__item {
  position: relative;
  padding-left: 30px;
}

.page-contact .step-rail__node {
  position: absolute;
  left: 0;
  top: 5px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--gold);
  background: var(--ink-deep);
  box-shadow: 0 0 0 5px rgba(243, 194, 75, .12);
}

.page-contact .step-rail__item h3 {
  margin: 8px 0 6px;
}

.page-contact .step-rail__item p {
  font-size: 15px;
}

.page-contact .step-visual {
  margin: 38px 0 0;
  background: var(--ink-deep);
}

.page-contact .step-visual img {
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 420;
  object-fit: cover;
}

.page-contact .sync-foot {
  margin-top: 20px;
  font-size: 15px;
}

/* ---------- 内容合作与授权 ---------- */
.page-contact .coop-layout {
  display: grid;
  gap: 28px;
}

.page-contact .coop-side {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .coop-side .btn {
  justify-self: start;
  margin-top: 6px;
}

.page-contact .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .filter-status {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-contact .coop-list {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.page-contact .coop-item {
  display: grid;
  gap: 10px;
  padding: 22px;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.page-contact .coop-item__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-contact .coop-item ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .coop-item li {
  padding: 10px 0 10px 20px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.6;
  color: var(--mist);
  position: relative;
}

.page-contact .coop-item li:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-contact .coop-item li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .coop-item li:first-child::before { top: 11px; }

.page-contact .coop-foot {
  margin-top: 20px;
  padding: 16px 18px;
  border: 2px dashed var(--line);
  background: var(--ink-deep);
  font-size: 15px;
}

/* ---------- 时效与升级 ---------- */
.page-contact .sla-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.page-contact .sla-card {
  display: grid;
  gap: 8px;
  padding: 26px 22px;
  background: var(--ink-deep);
  border: 2px solid var(--line);
  border-top: 6px solid var(--cyan);
  box-shadow: var(--shadow-soft);
}

.page-contact .sla-card--gold { border-top-color: var(--gold); }
.page-contact .sla-card--coral { border-top-color: var(--coral); }

.page-contact .sla-card__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 34px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--ice);
}

.page-contact .sla-card p {
  font-size: 15px;
}

/* ---------- 办公与联络信息 ---------- */
.page-contact .office-card {
  display: grid;
  gap: 26px;
  padding: clamp(24px, 5vw, 44px);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
}

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

.page-contact .office-card .section-title {
  color: var(--paper-ink);
}

.page-contact .office-card p {
  color: rgba(11, 27, 46, .78);
}

.page-contact .office-card a {
  color: #0B5E8A;
  text-decoration: underline;
}

.page-contact .office-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
}

.page-contact .office-list div {
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(11, 27, 46, .16);
}

.page-contact .office-list div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .office-list dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(11, 27, 46, .55);
}

.page-contact .office-list dd {
  margin: 6px 0 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper-ink);
  word-break: break-all;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-contact .step-rail {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    position: relative;
    padding-top: 40px;
  }

  .page-contact .step-rail::before {
    content: "";
    position: absolute;
    top: 46px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--line);
  }

  .page-contact .step-rail__item {
    padding: 0 24px 0 0;
  }

  .page-contact .step-rail__node {
    top: 0;
    left: 0;
  }
}

@media (min-width: 960px) {
  .page-contact .coop-layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 44px;
  }

  .page-contact .coop-item {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-contact .office-card {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
  }
}

@media (max-width: 520px) {
  .page-contact .hero-stage {
    min-height: 380px;
  }

  .page-contact .hero-stage__body {
    padding: 22px 18px 26px;
  }

  .page-contact .channel-card,
  .page-contact .feedback-card,
  .page-contact .sla-card,
  .page-contact .coop-item {
    padding: 22px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .hero-stage__veil,
  .page-contact .channel-card,
  .page-contact .step-rail__node {
    transition: none;
  }
}