.page-contact {
  --c-rail: 336px;
  --c-gap: 48px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
}

.page-contact .breadcrumb {
  padding: 22px 0 0;
  font-size: 13px;
  color: var(--gray-gold);
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-contact .breadcrumb a {
  color: var(--gray-gold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-contact .breadcrumb [aria-current] {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  margin-top: 20px;
  padding: 8px 0 56px;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: -20px 0 0 0;
  background: linear-gradient(118deg, rgba(74, 14, 30, 0.92) 0%, rgba(74, 14, 30, 0.55) 34%, rgba(23, 21, 28, 0) 62%);
  clip-path: polygon(0 0, 100% 0, 100% 72%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-contact .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--gold);
}

.page-contact h1 {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(34px, 8vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .h1-gold {
  color: var(--gold-bright);
}

.page-contact .hero-copy .lead {
  margin: 0 0 24px;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 241, 236, 0.78);
}

.page-contact .hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .hero-figure {
  position: relative;
  margin: 0;
}

.page-contact .hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: var(--border-w) solid var(--line);
  box-shadow: var(--shadow-hard);
  object-fit: cover;
}

.page-contact .hero-figure::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -14px;
  width: 96px;
  height: 8px;
  background: var(--gold);
}

/* ---------- 双栏主体 ---------- */
.page-contact .contact-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  padding: 12px 0 88px;
}

.page-contact .contact-rail {
  display: block;
}

.page-contact .rail-panel {
  margin-bottom: 20px;
  padding: 20px;
  background: var(--ink-2);
  border: var(--border-w) solid var(--line);
  box-shadow: var(--shadow-hard);
}

.page-contact .rail-title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--gold-bright);
}

.page-contact .rail-text {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--gray-gold);
}

/* 渠道卡 */
.page-contact .channel-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .channel-card {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 12px;
  background: rgba(244, 241, 236, 0.03);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: var(--gold);
  border-left-color: var(--gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}

.page-contact .channel-icon {
  display: block;
  line-height: 0;
  color: var(--gold);
}

.page-contact .channel-icon svg {
  display: block;
  width: 24px;
  height: 24px;
}

.page-contact .channel-body {
  min-width: 0;
}

.page-contact .channel-label {
  margin: 0 0 4px;
  font-family: var(--font-head);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--gray-gold);
}

.page-contact .channel-value {
  margin: 0 0 9px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .channel-fit {
  margin: 0;
  font-size: 13px;
  line-height: 1.66;
  color: rgba(244, 241, 236, 0.6);
  transition: color 0.22s var(--ease);
}

.page-contact .channel-card:hover .channel-fit,
.page-contact .channel-card:focus-within .channel-fit {
  color: rgba(244, 241, 236, 0.92);
}

.page-contact .channel-note {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--neon);
}

/* 时段刻度 */
.page-contact .hour-band {
  margin: 18px 0 16px;
}

.page-contact .hour-strip {
  display: grid;
  grid-template-columns: repeat(24, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .hour-cell {
  height: 26px;
  background: rgba(244, 241, 236, 0.07);
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
}

.page-contact .hour-cell.is-open {
  background: linear-gradient(180deg, var(--gold) 0%, var(--wine-soft) 100%);
  border-color: var(--gold);
}

.page-contact .hour-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray-gold);
}

.page-contact .hour-labels-open {
  color: var(--gold);
}

.page-contact .pace-list {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .pace-list li {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(244, 241, 236, 0.72);
  padding-left: 12px;
  border-left: 2px solid var(--wine-soft);
}

.page-contact .pace-key {
  display: inline-block;
  margin-right: 6px;
  color: var(--gold);
}

/* 备案 */
.page-contact .rail-panel--filing {
  background: transparent;
  box-shadow: none;
  padding: 16px 18px;
}

.page-contact .filing-num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

/* ---------- 右侧内容 ---------- */
.page-contact .flow-block {
  padding: 34px 0 6px;
  border-top: 2px solid var(--line);
}

.page-contact .flow-block:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-contact .section-title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 4.6vw, 34px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .block-lead {
  margin: 0 0 24px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 241, 236, 0.72);
}

/* 建议附带信息 */
.page-contact .prep-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px;
  background: var(--ink-2);
  border: var(--border-w) solid var(--line);
  border-left: 4px solid var(--gold);
}

.page-contact .prep-num {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--gold);
  padding-top: 2px;
}

.page-contact .prep-item h3 {
  margin: 0 0 7px;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-contact .prep-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244, 241, 236, 0.7);
}

/* 流程 */
.page-contact .flow-figure {
  margin: 0 0 26px;
}

.page-contact .flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: var(--border-w) solid var(--line);
  box-shadow: var(--shadow-hard);
  object-fit: cover;
}

.page-contact .flow-caption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gray-gold);
}

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

.page-contact .step details {
  background: var(--ink-2);
  border: var(--border-w) solid var(--line);
  transition: border-color 0.22s var(--ease);
}

.page-contact .step details[open] {
  border-color: var(--wine-soft);
}

.page-contact .step details:hover {
  border-color: var(--gold);
}

.page-contact .step summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

.page-contact .step summary::-webkit-details-marker {
  display: none;
}

.page-contact .step summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--gold);
}

.page-contact .step details[open] summary::after {
  content: "–";
}

.page-contact .step-num {
  flex: none;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold);
  border: 1px solid var(--gold);
}

.page-contact .step-body {
  margin: 0;
  padding: 0 18px 18px;
  font-size: 14px;
  line-height: 1.76;
  color: rgba(244, 241, 236, 0.72);
}

/* 自助入口 */
.page-contact .help-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .help-card {
  padding: 18px;
  background: var(--ink-2);
  border: var(--border-w) solid var(--line);
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-contact .help-card:hover,
.page-contact .help-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--gold);
  box-shadow: var(--shadow-gold);
}

.page-contact .help-card h3 {
  margin: 0 0 9px;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.page-contact .help-card h3 a {
  color: var(--gold-bright);
  text-decoration: none;
}

.page-contact .help-card h3 a:hover,
.page-contact .help-card h3 a:focus-visible {
  color: var(--gold);
  text-decoration: underline;
}

.page-contact .help-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: rgba(244, 241, 236, 0.68);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .help-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-hero-inner {
    gap: 40px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    padding: 24px 0 72px;
  }

  .page-contact .contact-hero-inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: center;
    gap: 56px;
  }

  .page-contact .contact-body {
    grid-template-columns: var(--c-rail) minmax(0, 1fr);
    gap: var(--c-gap);
    align-items: start;
    padding-bottom: 110px;
  }

  .page-contact .contact-rail {
    position: sticky;
    top: 96px;
    max-height: calc(100vh - 132px);
    overflow-y: auto;
    padding-right: 6px;
    scrollbar-width: thin;
  }

  .page-contact .contact-rail::-webkit-scrollbar {
    width: 6px;
  }

  .page-contact .contact-rail::-webkit-scrollbar-thumb {
    background: var(--line);
    border-radius: 3px;
  }

  .page-contact .rail-panel {
    padding: 22px;
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-hero::before {
    clip-path: polygon(0 0, 100% 0, 100% 66%, 0 100%);
  }
}