.page-contact {
  --cc-clip: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
  --cc-clip-sm: polygon(9px 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%, 0 9px);
  --cc-lead: clamp(36px, 5vw, 72px);
}

.page-contact .breadcrumbs {
  padding-top: clamp(16px, 3vw, 26px);
  font-size: var(--fs-xs);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: var(--cc-lead) 0 clamp(36px, 5vw, 68px);
  overflow: hidden;
  isolation: isolate;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: -28%;
  right: -14%;
  width: min(64%, 660px);
  aspect-ratio: 1 / 1;
  background: repeating-linear-gradient(118deg, rgba(200, 16, 46, 0.24) 0 2px, transparent 2px 13px);
  -webkit-mask-image: radial-gradient(circle at 62% 42%, #000 0%, transparent 68%);
  mask-image: radial-gradient(circle at 62% 42%, #000 0%, transparent 68%);
  pointer-events: none;
}

.page-contact .hero-inner {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  max-width: 20ch;
}

.page-contact .contact-lede {
  margin: clamp(16px, 2vw, 24px) 0 0;
  max-width: 62ch;
  font-size: var(--fs-md);
  line-height: 1.85;
  color: #C9D2DE;
}

/* ---------- 三条咨询方向 ---------- */

.page-contact .route-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(28px, 4vw, 48px);
}

.page-contact .route-card {
  position: relative;
  padding: 24px 22px 26px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
  clip-path: var(--cc-clip);
  transition: transform var(--ease), border-color var(--ease), background-color var(--ease);
}

.page-contact .route-card--supply { border-top-color: var(--blue); }
.page-contact .route-card--account { border-top-color: var(--green); }

.page-contact .route-card:hover,
.page-contact .route-card:focus-within {
  transform: translateY(-3px);
  background: var(--panel-hi);
  border-color: var(--line-hi);
}

.page-contact .route-index {
  display: block;
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-contact .route-title {
  margin: 12px 0 0;
  font-size: var(--fs-lg);
  line-height: 1.35;
  color: var(--white);
}

.page-contact .route-text {
  margin: 12px 0 0;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: #C9D2DE;
}

.page-contact .route-meta {
  margin: 14px 0 0;
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--muted);
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.page-contact .route-need {
  overflow: hidden;
  max-height: 340px;
  opacity: 1;
  margin-top: 14px;
  padding-left: 14px;
  border-left: 2px solid var(--line-hi);
  transition: max-height var(--ease), opacity var(--ease), margin-top var(--ease);
}

.page-contact .route-need-title {
  margin: 0;
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-contact .route-need ul {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .route-need li {
  position: relative;
  padding-left: 14px;
  margin-bottom: 6px;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: #C9D2DE;
}

.page-contact .route-need li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: var(--blue);
}

/* ---------- 联系方式卡片 ---------- */

.page-contact .channels {
  padding: clamp(44px, 6vw, 84px) 0;
}

.page-contact .section-head {
  max-width: 68ch;
}

.page-contact .section-lede {
  margin: 14px 0 0;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(28px, 4vw, 46px);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px 22px 28px;
  background: linear-gradient(160deg, var(--panel-hi) 0%, var(--panel) 62%);
  border: 1px solid var(--line);
  clip-path: var(--cc-clip);
}

.page-contact .channel-tag {
  align-self: flex-start;
  padding: 5px 10px;
  font-size: var(--fs-xs);
  letter-spacing: 0.16em;
  color: var(--ink);
  background: rgba(47, 155, 255, 0.12);
  border: 1px solid rgba(47, 155, 255, 0.4);
  clip-path: var(--cc-clip-sm);
}

.page-contact .channel-card:nth-child(1) .channel-tag {
  color: var(--ink);
  background: rgba(200, 16, 46, 0.16);
  border-color: rgba(200, 16, 46, 0.5);
}

.page-contact .channel-card:nth-child(3) .channel-tag {
  background: rgba(53, 227, 154, 0.12);
  border-color: rgba(53, 227, 154, 0.4);
}

.page-contact .channel-title {
  margin: 18px 0 0;
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 500;
}

.page-contact .channel-value {
  margin: 8px 0 0;
  font-size: var(--fs-md);
  line-height: 1.5;
  color: var(--white);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .channel-value--mail {
  color: var(--blue);
}

.page-contact .channel-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: #C9D2DE;
}

/* ---------- 服务时间与响应节奏 ---------- */

.page-contact .hours {
  padding: clamp(44px, 6vw, 84px) 0;
  background: linear-gradient(180deg, rgba(20, 23, 29, 0) 0%, rgba(20, 23, 29, 0.72) 40%, rgba(20, 23, 29, 0) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .hours-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-contact .hours-body h2 {
  margin: 12px 0 0;
}

.page-contact .hours-body p {
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: var(--fs-sm);
  line-height: 1.9;
  color: #C9D2DE;
}

.page-contact .timebar-label {
  margin: 0 0 12px;
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-contact .timebar {
  padding: 16px 14px 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: var(--cc-clip-sm);
}

.page-contact .timebar-track {
  position: relative;
  height: 14px;
  background: #0E1116;
  border: 1px solid var(--line);
}

.page-contact .timebar-live {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 37.5%;
  background: linear-gradient(90deg, rgba(53, 227, 154, 0.9), rgba(47, 155, 255, 0.85));
  box-shadow: 0 0 14px rgba(53, 227, 154, 0.35);
}

.page-contact .timebar-scale {
  display: flex;
  justify-content: space-between;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  font-size: var(--fs-xs);
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-contact .timebar-legend {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .timebar-legend li {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: #C9D2DE;
}

.page-contact .dot {
  flex: none;
  width: 9px;
  height: 9px;
}

.page-contact .dot--live {
  background: var(--green);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}

.page-contact .dot--off {
  background: var(--muted);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}

/* ---------- 内容纠错 ---------- */

.page-contact .correction {
  padding: clamp(44px, 6vw, 84px) 0;
}

.page-contact .correction-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 36px);
  margin-top: clamp(26px, 4vw, 44px);
}

.page-contact .checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .check-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--ink);
}

.page-contact .check-box {
  flex: none;
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  border: 1px solid var(--line-hi);
  background: var(--panel);
  clip-path: var(--cc-clip-sm);
}

.page-contact .check-item:hover .check-box {
  border-color: var(--green);
}

.page-contact .check-item:hover .check-box::after {
  content: "";
  position: absolute;
  inset: 3px;
  background: var(--green);
  clip-path: polygon(0 0, 46% 100%, 100% 12%, 82% 0, 46% 62%, 18% 0);
}

.page-contact .correction-aside {
  padding: 26px 22px 28px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  clip-path: var(--cc-clip);
}

.page-contact .correction-aside-title {
  margin: 0;
  font-size: var(--fs-lg);
  color: var(--white);
}

.page-contact .correction-steps {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-contact .correction-steps li {
  display: flex;
  gap: 14px;
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 1px dashed var(--line);
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: #C9D2DE;
}

.page-contact .correction-steps li:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-contact .step-num {
  flex: none;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  font-size: var(--fs-xs);
  color: var(--bg);
  background: var(--blue);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}

.page-contact .correction-hint {
  margin: 22px 0 0;
  padding: 14px 16px;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: #C9D2DE;
  background: rgba(47, 155, 255, 0.07);
  border-left: 2px solid var(--blue);
}

.page-contact .correction-hint a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 供稿与合作 ---------- */

.page-contact .contribute {
  padding: clamp(44px, 6vw, 84px) 0;
  border-top: 1px solid var(--line);
}

.page-contact .contribute-inner h2 {
  margin: 12px 0 0;
  max-width: 24ch;
}

.page-contact .contribute-lede {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: var(--fs-sm);
  line-height: 1.9;
  color: #C9D2DE;
}

.page-contact .contribute-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: clamp(26px, 4vw, 44px);
}

.page-contact .contribute-col {
  padding: 22px 20px 24px;
  background: var(--panel);
  border-top: 2px solid var(--line-hi);
  clip-path: var(--cc-clip);
}

.page-contact .contribute-col:nth-child(1) { border-top-color: var(--red); }
.page-contact .contribute-col:nth-child(2) { border-top-color: var(--blue); }
.page-contact .contribute-col:nth-child(3) { border-top-color: var(--green); }

.page-contact .contribute-col-title {
  margin: 0;
  font-size: var(--fs-sm);
  letter-spacing: 0.08em;
  color: var(--white);
}

.page-contact .plain-list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .plain-list li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 9px;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: #C9D2DE;
}

.page-contact .plain-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 1px;
  background: var(--muted);
}

.page-contact .contribute-foot {
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 所在城市 ---------- */

.page-contact .city {
  padding: clamp(44px, 6vw, 84px) 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .city-media {
  margin: clamp(28px, 4vw, 44px) 0 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .city-media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-contact .city-media figcaption {
  padding: 14px clamp(20px, 4vw, 40px) 16px;
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  color: var(--muted);
}

/* ---------- 页尾导航块 ---------- */

.page-contact .section-tail {
  padding: clamp(36px, 5vw, 64px) 0 clamp(48px, 7vw, 96px);
}

.page-contact .tail-panel {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: var(--cc-clip);
}

.page-contact .tail-texture {
  width: 100%;
  height: 100%;
  max-height: 220px;
  object-fit: cover;
  opacity: 0.55;
}

.page-contact .tail-body {
  padding: 26px 22px 30px;
}

.page-contact .tail-body h2 {
  margin: 12px 0 0;
}

.page-contact .tail-body p {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: #C9D2DE;
}

.page-contact .tail-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

/* ---------- 桌面端 ---------- */

@media (min-width: 700px) {
  .page-contact .contribute-cols {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 880px) {
  .page-contact .route-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-contact .hours-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-contact .correction-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }

  .page-contact .tail-panel {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: stretch;
  }

  .page-contact .tail-texture {
    max-height: none;
    min-height: 240px;
  }

  .page-contact .tail-body {
    padding: 38px 36px 44px;
  }
}

@media (hover: hover) and (min-width: 880px) {
  .page-contact .route-need {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
  }

  .page-contact .route-card:hover .route-need,
  .page-contact .route-card:focus-within .route-need {
    max-height: 340px;
    opacity: 1;
    margin-top: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .route-card,
  .page-contact .route-need {
    transition: none;
  }

  .page-contact .route-card:hover,
  .page-contact .route-card:focus-within {
    transform: none;
  }
}