.page-contact {
  --pc-cut: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
  --pc-cut-sm: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  --pc-card-bg: linear-gradient(162deg, rgba(30, 49, 56, 0.94), rgba(10, 26, 33, 0.94));
  --pc-ink-soft: rgba(10, 26, 33, 0.68);
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumb-wrap {
  padding-top: clamp(20px, 4vw, 36px);
}

.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 10px;
  color: var(--line-mute);
}

.page-contact .breadcrumb-link {
  color: var(--mist);
  text-decoration: none;
}

.page-contact .breadcrumb-link:hover,
.page-contact .breadcrumb-link:focus-visible {
  color: var(--cyan);
}

.page-contact .breadcrumb-current {
  color: var(--gold-light);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(38px, 7vw, 92px) 0 clamp(34px, 6vw, 70px);
  isolation: isolate;
}

.page-contact .contact-hero-slab {
  position: absolute;
  top: -18%;
  right: -32%;
  width: 96%;
  height: 92%;
  background: linear-gradient(152deg, var(--night) 8%, rgba(16, 27, 51, 0) 78%);
  clip-path: polygon(28% 0, 100% 0, 100% 74%, 0 100%);
  z-index: -1;
}

.page-contact .contact-hero-slab::after {
  content: "";
  position: absolute;
  left: 12%;
  right: 4%;
  bottom: 26%;
  height: 1px;
  background: linear-gradient(90deg, rgba(47, 214, 196, 0), var(--cyan), rgba(201, 162, 39, 0.9));
}

.page-contact .contact-hero-shell {
  display: grid;
  gap: clamp(26px, 5vw, 54px);
  align-items: end;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.05rem, 5.4vw, 3.85rem);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.01em;
  margin: 0 0 20px;
  max-width: 18ch;
}

.page-contact .contact-hero .lede {
  max-width: 60ch;
  margin: 0 0 26px;
  color: rgba(243, 239, 230, 0.86);
}

.page-contact .contact-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .contact-hero-note {
  border-top: 1px solid var(--line-cyan);
  border-left: 2px solid var(--gold);
  padding: 18px 0 4px 20px;
}

.page-contact .note-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2.3rem, 8vw, 3.5rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold-light);
  margin-bottom: 10px;
}

.page-contact .note-text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist);
  max-width: 30ch;
}

/* ---------- 章节头部通用 ---------- */
.page-contact .section-head {
  display: grid;
  gap: 14px;
  align-items: start;
}

.page-contact .section-head-text .lede {
  margin: 10px 0 0;
  max-width: 62ch;
}

.page-contact .section-num {
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 8vw, 4.2rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(47, 214, 196, 0.55);
}

/* ---------- 渠道区 ---------- */
.page-contact .contact-channels {
  padding-top: clamp(30px, 5vw, 56px);
}

.page-contact .contact-banner {
  margin: 0 0 clamp(30px, 5vw, 56px);
  aspect-ratio: 2 / 1;
  overflow: hidden;
}

.page-contact .contact-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-contact .channel-list {
  display: grid;
  gap: 20px;
  margin-top: clamp(28px, 4vw, 50px);
}

.page-contact .channel-card {
  position: relative;
  padding: 26px 24px 30px;
  background: var(--pc-card-bg);
  clip-path: var(--pc-cut);
  border-top: 2px solid var(--gold);
  transition: transform 0.34s var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-6px);
}

.page-contact .channel-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  color: var(--gold);
  margin-bottom: 14px;
}

.page-contact .channel-icon {
  display: block;
  color: var(--cyan);
  margin-bottom: 16px;
}

.page-contact .channel-name {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  margin: 0 0 10px;
}

.page-contact .channel-value {
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  letter-spacing: 0.01em;
  line-height: 1.5;
  color: var(--gold-light);
  word-break: break-word;
  margin: 0 0 16px;
}

.page-contact .channel-value-address {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
}

.page-contact .channel-text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(243, 239, 230, 0.82);
}

.page-contact .channel-tip {
  margin: 16px 0 0;
  padding-top: 13px;
  border-top: 1px dashed var(--line-mute);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 材料准备（浅色章节） ---------- */
.page-contact .contact-materials {
  background: var(--paper);
  color: var(--ink);
}

.page-contact .contact-materials .section-num {
  -webkit-text-stroke: 1px rgba(193, 80, 46, 0.7);
}

.page-contact .contact-materials .section-title,
.page-contact .contact-materials .row-title,
.page-contact .contact-materials .filter-count-line {
  color: var(--ink);
}

.page-contact .contact-materials .lede,
.page-contact .contact-materials .material-note {
  color: var(--pc-ink-soft);
}

.page-contact .contact-materials .section-title {
  font-family: var(--font-display);
}

.page-contact .material-grid {
  margin-top: clamp(26px, 4vw, 46px);
  gap: clamp(26px, 4vw, 46px);
}

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

.page-contact .filter-btn {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  padding: 9px 15px;
  border: 1px solid rgba(10, 26, 33, 0.24);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  clip-path: var(--pc-cut-sm);
  transition: background 0.24s var(--ease), color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-contact .filter-btn:hover {
  border-color: var(--clay);
  color: var(--clay);
}

.page-contact .filter-btn[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.page-contact .filter-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .filter-count-line {
  margin: 16px 0 6px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.03em;
}

.page-contact .filter-count {
  color: var(--clay);
  font-weight: 700;
}

.page-contact .contact-materials .row {
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(10, 26, 33, 0.14);
}

.page-contact .contact-materials .row-num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--clay);
}

.page-contact .contact-materials .row-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.5;
}

.page-contact .contact-materials .row-meta {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--pc-ink-soft);
}

.page-contact .material-note {
  margin: 24px 0 0;
  font-size: 0.9375rem;
  line-height: 1.85;
}

.page-contact .material-note a,
.page-contact .route-note a {
  color: var(--clay);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .material-figure {
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

.page-contact .material-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- 服务时间 ---------- */
.page-contact .contact-hours {
  background: var(--ink-deep);
}

.page-contact .hours-widget {
  margin-top: clamp(26px, 4vw, 46px);
}

.page-contact .hours-track {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 3px;
}

.page-contact .hours-cell {
  height: 26px;
  background: rgba(138, 154, 160, 0.18);
  border-top: 1px solid rgba(138, 154, 160, 0.3);
}

.page-contact .hours-cell.is-open {
  background: linear-gradient(180deg, rgba(47, 214, 196, 0.92), rgba(201, 162, 39, 0.86));
  border-top-color: var(--gold-light);
}

.page-contact .hours-scale {
  display: flex;
  justify-content: space-between;
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .hours-legend {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-contact .hours-item {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-contact .hours-dot {
  width: 10px;
  height: 10px;
  margin-top: 7px;
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-contact .hours-dot-open {
  background: var(--cyan);
}

.page-contact .hours-dot-fast {
  background: var(--gold);
}

.page-contact .hours-dot-off {
  background: var(--mist);
}

.page-contact .hours-title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 0 0 6px;
}

.page-contact .hours-item p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(243, 239, 230, 0.78);
}

/* ---------- 转办路径 ---------- */
.page-contact .route-line {
  display: grid;
  gap: 18px;
  margin-top: clamp(26px, 4vw, 48px);
}

.page-contact .route-node {
  position: relative;
  padding: 22px 20px 26px;
  background: rgba(30, 49, 56, 0.5);
  border-top: 1px solid var(--line-cyan);
  clip-path: var(--pc-cut-sm);
  transition: transform 0.32s var(--ease), background 0.32s var(--ease);
}

.page-contact .route-node:hover,
.page-contact .route-node:focus-visible {
  transform: translateY(-6px);
  background: rgba(30, 49, 56, 0.92);
  outline: none;
}

.page-contact .route-node:focus-visible {
  box-shadow: 0 0 0 2px var(--cyan);
}

.page-contact .route-step {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 12px;
}

.page-contact .route-title {
  font-family: var(--font-display);
  font-size: 1.3125rem;
  font-weight: 700;
  margin: 0 0 8px;
}

.page-contact .route-owner {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--gold-light);
  border: 1px solid var(--line-gold);
  padding: 3px 9px;
  margin: 0 0 14px;
}

.page-contact .route-detail {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(243, 239, 230, 0.78);
}

.page-contact .route-note {
  margin: clamp(24px, 3vw, 34px) 0 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 来信与到访 ---------- */
.page-contact .letter-grid {
  display: grid;
  gap: 22px;
  margin-top: clamp(26px, 4vw, 46px);
}

.page-contact .letter-block {
  padding: 24px 22px 26px;
  background: rgba(30, 49, 56, 0.42);
  border-left: 2px solid var(--line-cyan);
}

.page-contact .letter-title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 0 0 12px;
}

.page-contact .letter-addr {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--gold-light);
  margin: 0 0 12px;
  word-break: break-word;
}

.page-contact .letter-text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(243, 239, 230, 0.8);
}

/* ---------- 收束带 ---------- */
.page-contact .contact-close {
  background: var(--paper);
  color: var(--ink);
  padding: clamp(38px, 6vw, 76px) 0;
}

.page-contact .close-inner {
  display: grid;
  gap: 26px;
  align-items: center;
}

.page-contact .close-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.6vw, 2.25rem);
  font-weight: 800;
  line-height: 1.28;
  margin: 0 0 14px;
  max-width: 22ch;
}

.page-contact .close-text {
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--pc-ink-soft);
  max-width: 48ch;
}

.page-contact .close-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .close-actions .btn-solid {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-contact .hours-legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-contact .material-figure {
    aspect-ratio: 4 / 3;
  }

  .page-contact .contact-materials .row {
    grid-template-columns: 56px minmax(0, 1fr) minmax(0, 1.25fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-contact .letter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .letter-block:first-child {
    grid-column: span 2;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-contact .section-head {
    grid-template-columns: minmax(0, 0.18fr) minmax(0, 1fr);
    gap: clamp(20px, 3vw, 40px);
  }

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

  .page-contact .channel-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 24px;
  }

  .page-contact .channel-card:nth-child(2) {
    margin-top: 48px;
  }

  .page-contact .channel-card:nth-child(3) {
    margin-top: 96px;
  }

  .page-contact .hours-track {
    gap: 4px;
  }

  .page-contact .hours-cell {
    height: 34px;
  }

  .page-contact .route-line {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 28px;
  }

  .page-contact .route-node:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 38px;
    right: -28px;
    width: 28px;
    height: 1px;
    background: linear-gradient(90deg, var(--cyan), rgba(201, 162, 39, 0.7));
  }

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

  .page-contact .letter-block:first-child {
    grid-column: span 1;
  }

  .page-contact .close-inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  }

  .page-contact .close-actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1100px) {
  .page-contact .material-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .material-figure {
    position: sticky;
    top: 96px;
  }
}

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

  .page-contact .channel-card:hover,
  .page-contact .route-node:hover,
  .page-contact .route-node:focus-visible {
    transform: none;
  }
}
</