.page-contact {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  padding-bottom: 64px;
  overflow-x: clip;
}

/* ===== 首屏 ===== */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: var(--deep);
  border-bottom: 1px solid var(--line);
}

.page-contact .hero-art {
  position: absolute;
  inset: 0;
}

.page-contact .hero-art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45;
}

.page-contact .hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(13, 26, 40, 0.42) 0%,
    rgba(13, 26, 40, 0.9) 56%,
    var(--ink) 100%
  );
}

.page-contact .hero-inner {
  position: relative;
  z-index: 1;
  padding-top: 34px;
  padding-bottom: 58px;
}

.page-contact .hero-inner .breadcrumb {
  margin-bottom: 30px;
}

.page-contact .hero-inner h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(29px, 5.4vw, 52px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 14px 0 0;
  max-width: 15em;
}

.page-contact .hero-lead {
  margin: 20px 0 0;
  max-width: 36em;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--fog);
}

/* ===== 左右分屏 ===== */
.page-contact .contact-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  padding-top: 46px;
  padding-bottom: 48px;
}

.page-contact .section-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 27px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .section-title .chapter-no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
  border-bottom: 1px solid var(--gold);
  padding-bottom: 2px;
}

/* 通道列表 */
.page-contact .channel-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .channel {
  border-top: 1px solid var(--line);
  padding: 22px 0 24px;
  transition: border-color 0.2s var(--ease);
}

.page-contact .channel:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  border-top-color: var(--gold);
}

.page-contact .channel-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.page-contact .channel-no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gold);
  border: 1px solid var(--line);
  padding: 2px 7px;
  line-height: 1.6;
}

.page-contact .channel-name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .channel-state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--moss);
}

.page-contact .status-dot {
  display: inline-block;
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--moss);
  box-shadow: 0 0 0 3px rgba(124, 151, 137, 0.16);
}

.page-contact .channel-value {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.6vw, 18px);
  letter-spacing: 0.02em;
  color: var(--amber);
  word-break: break-all;
}

.page-contact .channel-desc {
  margin: 0;
  font-size: 15.8px;
  line-height: 1.85;
  color: var(--fog);
  max-width: 38em;
}

.page-contact .channel-meta {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--gold);
  opacity: 0.85;
}

.page-contact .channel-action {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(227, 166, 90, 0.5);
  padding-bottom: 2px;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-contact .channel-action:hover,
.page-contact .channel-action:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* 右侧说明区 */
.page-contact .aside-panel {
  padding-top: 4px;
}

.page-contact .aside-lead {
  margin: 18px 0 22px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--fog);
}

.page-contact .clock {
  border: 1px solid var(--line);
  background: var(--deep);
  padding: 20px 18px 16px;
}

.page-contact .clock-track {
  position: relative;
  height: 10px;
  background: var(--night);
  border: 1px solid var(--line);
}

.page-contact .clock-band {
  position: absolute;
  top: 0;
  bottom: 0;
  background: var(--amber);
  cursor: help;
  outline-offset: 3px;
}

.page-contact .clock-band:focus-visible {
  outline: 1px solid var(--gold);
}

.page-contact .clock-tip {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 12px);
  transform: translateX(-50%);
  width: 220px;
  max-width: 72vw;
  padding: 9px 11px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 12.5px;
  line-height: 1.65;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.18s var(--ease), visibility 0.18s var(--ease);
  z-index: 3;
}

.page-contact .clock-band:hover .clock-tip,
.page-contact .clock-band:focus .clock-tip {
  opacity: 1;
  visibility: visible;
}

.page-contact .clock-ticks {
  list-style: none;
  display: flex;
  justify-content: space-between;
  margin: 9px 0 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--fog);
}

.page-contact .clock-legend {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--fog);
}

.page-contact .clock-legend::before {
  content: "";
  flex: none;
  width: 18px;
  height: 6px;
  background: var(--amber);
}

.page-contact .aside-note {
  margin: 24px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--wine);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--fog);
}

.page-contact .aside-figure {
  margin: 28px 0 0;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
}

.page-contact .aside-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-contact .aside-figure .media-caption {
  margin-top: 10px;
  font-family: var(--font-body);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--fog);
}

/* ===== 准备清单 ===== */
.page-contact .prepare {
  padding-bottom: 56px;
}

.page-contact .prepare-inner {
  border-top: 1px solid var(--line);
  padding-top: 38px;
}

.page-contact .prepare-head {
  display: grid;
  gap: 12px;
  margin-bottom: 26px;
}

.page-contact .prepare-lead {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--fog);
  max-width: 40em;
}

.page-contact .check-list {
  list-style: none;
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
}

.page-contact .check-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--deep);
  border: 1px solid var(--line);
  padding: 17px 18px;
  cursor: pointer;
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

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

.page-contact .check-box {
  flex: none;
  margin: 4px 0 0;
  width: 17px;
  height: 17px;
  border: 1px solid var(--gold);
  background: transparent;
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  cursor: pointer;
  transition: background-color 0.16s var(--ease), border-color 0.16s var(--ease);
}

.page-contact .check-box:checked {
  background: var(--amber);
  border-color: var(--amber);
}

.page-contact .check-box:checked::after {
  content: "";
  position: absolute;
  inset: 4px;
  background: var(--ink);
}

.page-contact .check-box:focus-visible {
  outline: 1px solid var(--amber);
  outline-offset: 2px;
}

.page-contact .check-no {
  flex: none;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-contact .check-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog);
}

.page-contact .check-text strong {
  color: var(--paper);
  font-weight: 700;
}

.page-contact .prepare-foot {
  margin: 24px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--fog);
}

.page-contact .inline-link {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(227, 166, 90, 0.45);
  padding-bottom: 1px;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-contact .inline-link:hover,
.page-contact .inline-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ===== 地址横条 ===== */
.page-contact .address-bar {
  position: relative;
  background: var(--paper);
  color: var(--ink);
  padding: 44px 0 48px;
}

.page-contact .address-bar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gold);
}

.page-contact .address-bar .label {
  color: var(--wine);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.page-contact .address-value {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.6vw, 31px);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .address-desc {
  margin: 14px 0 0;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--night);
}

.page-contact .address-desc--sub {
  margin-top: 10px;
  font-size: 14px;
  color: rgba(31, 58, 77, 0.82);
}

.page-contact .address-bar .inline-link {
  color: #6b4b18;
  border-bottom-color: rgba(107, 75, 24, 0.4);
}

.page-contact .address-bar .inline-link:hover,
.page-contact .address-bar .inline-link:focus-visible {
  color: var(--wine);
  border-bottom-color: var(--wine);
}

/* ===== 底部常驻条 ===== */
.page-contact .contact-dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 11px 16px;
  background: rgba(22, 41, 61, 0.97);
  border-top: 1px solid var(--line);
}

.page-contact .dock-text {
  margin: 0;
  font-size: 13.5px;
  color: var(--fog);
}

.page-contact .dock-link {
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--amber);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 1px solid rgba(227, 166, 90, 0.5);
  padding-bottom: 1px;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-contact .dock-link:hover,
.page-contact .dock-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ===== 响应式 ===== */
@media (max-width: 560px) {
  .page-contact .dock-text {
    display: none;
  }

  .page-contact .contact-dock {
    padding: 10px 14px;
  }

  .page-contact .clock-tip {
    left: auto;
    right: 0;
    transform: none;
  }

  .page-contact .channel-state {
    font-size: 10px;
    gap: 5px;
  }
}

@media (min-width: 920px) {
  .page-contact .contact-split {
    grid-template-columns: 55fr 45fr;
    gap: 0;
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .page-contact .channels {
    padding-right: 52px;
  }

  .page-contact .aside-panel {
    border-left: 1px solid var(--line);
    padding-left: 52px;
    padding-top: 0;
  }

  .page-contact .prepare-head {
    grid-template-columns: 55fr 45fr;
    gap: 52px;
    align-items: end;
  }

  .page-contact .check-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .page-contact .check-item {
    flex-direction: column;
    gap: 10px;
  }

  .page-contact .check-text {
    font-size: 14.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .check-item,
  .page-contact .check-box,
  .page-contact .clock-tip,
  .page-contact .channel-action,
  .page-contact .inline-link,
  .page-contact .dock-link {
    transition: none;
  }
}