/* ============ 页面基础 ============ */
.page-contact {
  padding-top: var(--shell-top);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--paper);
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(46, 74, 97, 0.24) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 74, 97, 0.24) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: -1px -1px;
  overflow-x: hidden;
}

.page-contact .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ============ 首屏 ============ */
.page-contact .pc-hero {
  padding: 40px 0 56px;
  border-bottom: 1px solid var(--line);
}

.page-contact .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-contact .hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--bronze);
}

.page-contact .hero-eyebrow::before {
  content: "";
  width: 32px;
  height: 2px;
  background: var(--bronze);
}

.page-contact .hero-title {
  margin: 0 0 24px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(30px, 7.2vw, 58px);
  line-height: 1.24;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.page-contact .hero-title em {
  font-style: normal;
  color: var(--bronze-lit);
  position: relative;
}

.page-contact .hero-title em::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 3px;
  background: linear-gradient(90deg, var(--bronze) 0%, var(--cinnabar) 100%);
}

.page-contact .hero-lead {
  margin: 0 0 28px;
  max-width: 46em;
  font-size: 17px;
  color: rgba(244, 239, 230, 0.84);
}

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

/* 铭牌式速览面板 */
.page-contact .hero-plate {
  position: relative;
  padding: 26px 24px 34px;
  background: linear-gradient(180deg, var(--deep) 0%, #0E2337 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
  box-shadow:
    inset 0 1px 0 0 rgba(192, 138, 62, 0.55),
    inset 0 0 0 1px rgba(46, 74, 97, 0.9),
    0 28px 56px -28px var(--shadow-ink);
}

.page-contact .hero-plate::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 64px;
  height: 2px;
  background: var(--bronze);
}

.page-contact .plate-label {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--bronze);
}

.page-contact .plate-clock {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(26px, 6vw, 38px);
  letter-spacing: 0.08em;
  color: var(--paper);
}

.page-contact .plate-sub {
  margin: 0 0 22px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--celadon);
}

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

.page-contact .plate-rows li {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .plate-k {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--celadon);
}

.page-contact .plate-v {
  font-size: 14px;
  color: var(--paper);
  overflow-wrap: anywhere;
}

/* ============ 通用区块 ============ */
.page-contact .pc-block {
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-head {
  position: relative;
  margin: 0 0 32px;
  padding-left: 22px;
  border-left: 2px solid var(--bronze);
}

.page-contact .pc-num {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--bronze);
}

.page-contact .pc-h2 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1.3;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.page-contact .pc-lede {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  color: rgba(244, 239, 230, 0.8);
}

/* ============ 值班时间带 ============ */
.page-contact .hours-wrap {
  display: grid;
  gap: 20px;
}

.page-contact .band {
  position: relative;
  height: 68px;
  border: 1px solid var(--line);
  background: rgba(46, 74, 97, 0.14);
  overflow: hidden;
}

.page-contact .band-fill {
  position: absolute;
  top: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(78, 140, 134, 0.46) 0%, rgba(78, 140, 134, 0.16) 100%);
  border-left: 2px solid var(--jade);
  border-right: 2px solid var(--jade);
}

.page-contact .band-tag {
  position: absolute;
  bottom: 8px;
  transform: translateX(6px);
  font-size: 11px;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

.page-contact .band-tag--on {
  color: #CFE8E3;
}

.page-contact .band-tag--off {
  color: var(--celadon);
}

.page-contact .band-scale {
  display: flex;
  justify-content: space-between;
  margin-top: -12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--celadon);
}

.page-contact .hours-notes {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .hours-notes li {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.page-contact .note-k {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--jade);
}

.page-contact .note-v {
  margin: 0;
  font-size: 15px;
  color: rgba(244, 239, 230, 0.82);
}

/* ============ 四档通道 ============ */
.page-contact .tier-figure {
  margin: 0 0 28px;
  border: 1px solid var(--line);
  background: rgba(18, 41, 63, 0.5);
  position: relative;
}

.page-contact .tier-figure::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 72px;
  height: 2px;
  background: var(--bronze);
  z-index: 1;
}

.page-contact .tier-figure img,
.page-contact .region-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .tier-figure-cap {
  margin: 0;
  padding: 10px 14px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--celadon);
  border-top: 1px solid var(--line);
}

.page-contact .tier-list {
  display: grid;
  gap: 10px;
}

.page-contact .tier {
  border: 1px solid var(--line);
  background: rgba(18, 41, 63, 0.58);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .tier[open] {
  border-color: rgba(192, 138, 62, 0.6);
  background: rgba(18, 41, 63, 0.9);
}

.page-contact .tier > summary {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  grid-template-areas:
    "code name"
    "code fact";
  gap: 2px 14px;
  align-items: center;
  padding: 16px 52px 16px 18px;
  list-style: none;
  cursor: pointer;
  transition: color var(--dur) var(--ease);
}

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

.page-contact .tier > summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--bronze);
}

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

.page-contact .tier > summary:focus-visible {
  outline: 2px solid var(--bronze-lit);
  outline-offset: -2px;
}

.page-contact .tier-code {
  grid-area: code;
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--bronze);
  border-right: 1px solid var(--line);
}

.page-contact .tier-name {
  grid-area: name;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.page-contact .tier-fact {
  grid-area: fact;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--celadon);
}

.page-contact .tier-body {
  padding: 4px 18px 20px;
  border-top: 1px solid var(--line);
}

.page-contact .tier-scene {
  margin: 16px 0 18px;
  font-size: 15px;
  color: rgba(244, 239, 230, 0.82);
}

.page-contact .tier-spec {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 18px;
  padding: 14px 0 0;
  border-top: 1px dashed var(--line);
}

.page-contact .spec-k {
  font-size: 13px;
  color: var(--celadon);
}

.page-contact .spec-v {
  font-size: 14px;
  color: var(--paper);
  overflow-wrap: anywhere;
}

/* ============ 商务合作 ============ */
.page-contact .coop-grid {
  display: grid;
  gap: 16px;
}

.page-contact .coop-card {
  position: relative;
  padding: 24px 22px 26px;
  background: var(--deep);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
  box-shadow: inset 0 1px 0 0 rgba(192, 138, 62, 0.45);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .coop-card:hover {
  transform: translateY(-4px);
  box-shadow:
    inset 0 1px 0 0 rgba(230, 188, 114, 0.8),
    0 22px 40px -26px var(--shadow-ink);
}

.page-contact .coop-idx {
  display: block;
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--bronze);
}

.page-contact .coop-title {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 21px;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.page-contact .coop-text {
  margin: 0 0 16px;
  font-size: 15px;
  color: rgba(244, 239, 230, 0.82);
}

.page-contact .coop-fit {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  color: var(--celadon);
}

/* ============ 留言模板 ============ */
.page-contact .msg-card {
  border: 1px solid rgba(192, 138, 62, 0.5);
  background: var(--deep);
  position: relative;
}

.page-contact .msg-head {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(11, 26, 43, 0.7);
}

.page-contact .msg-tag {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--bronze);
}

.page-contact .msg-copy {
  padding: 7px 14px;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--bronze);
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .msg-copy:hover,
.page-contact .msg-copy:focus-visible {
  background: var(--bronze);
  color: var(--ink);
  outline: none;
}

.page-contact .msg-body {
  margin: 0;
  padding: 20px 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.9;
  letter-spacing: 0.03em;
  color: var(--paper);
  background:
    repeating-linear-gradient(
      180deg,
      transparent 0,
      transparent 25px,
      rgba(46, 74, 97, 0.42) 25px,
      rgba(46, 74, 97, 0.42) 26px
    );
}

.page-contact .msg-body code {
  font-family: inherit;
  white-space: pre;
}

.page-contact .msg-tips {
  list-style: none;
  margin: 0;
  padding: 4px 16px 18px;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
}

.page-contact .msg-tips li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: rgba(244, 239, 230, 0.78);
}

.page-contact .msg-tips li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 1px;
  background: var(--jade);
}

.page-contact .msg-tips .mono {
  color: var(--bronze-lit);
  margin-right: 4px;
}

/* ============ 联系信息铭牌 ============ */
.page-contact .reach-plate {
  position: relative;
  padding: 28px 22px 30px;
  background: linear-gradient(180deg, var(--deep) 0%, #0E2337 100%);
  border: 1px solid rgba(192, 138, 62, 0.55);
  box-shadow: inset 0 0 0 6px rgba(11, 26, 43, 0.75), 0 26px 52px -30px var(--shadow-ink);
}

.page-contact .reach-plate::before,
.page-contact .reach-plate::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--bronze);
}

.page-contact .reach-plate::before {
  top: 10px;
  left: 10px;
  border-right: none;
  border-bottom: none;
}

.page-contact .reach-plate::after {
  right: 10px;
  bottom: 10px;
  border-left: none;
  border-top: none;
}

.page-contact .reach-tag {
  margin: 0 0 20px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--bronze);
}

.page-contact .reach-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .reach-list li {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-contact .reach-list li:first-child {
  border-top: none;
  padding-top: 0;
}

.page-contact .reach-k {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--celadon);
}

.page-contact .reach-v {
  font-size: 17px;
  letter-spacing: 0.03em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .reach-v.mono {
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--bronze-lit);
}

.page-contact .reach-note {
  font-style: normal;
  font-size: 13px;
  line-height: 1.7;
  color: var(--celadon);
}

/* ============ 区域通道 ============ */
.page-contact .region-layout {
  display: grid;
  gap: 24px;
}

.page-contact .region-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: rgba(18, 41, 63, 0.5);
}

.page-contact .region-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-contact .region-table th {
  padding: 12px 14px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--bronze);
  border-bottom: 1px solid var(--bronze);
  background: rgba(11, 26, 43, 0.85);
  white-space: nowrap;
}

.page-contact .region-table td {
  padding: 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  color: rgba(244, 239, 230, 0.84);
  line-height: 1.7;
}

.page-contact .region-table tbody tr:last-child td {
  border-bottom: none;
}

.page-contact .region-table tbody tr:hover td {
  background: rgba(46, 74, 97, 0.35);
}

.page-contact .region-code {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 6px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--bronze-lit);
  border-left: 2px solid var(--bronze);
  background: rgba(192, 138, 62, 0.12);
}

.page-contact .region-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: rgba(18, 41, 63, 0.4);
  align-self: start;
}

/* ============ 结尾 ============ */
.page-contact .pc-tail {
  padding: 52px 0 64px;
  background: linear-gradient(180deg, rgba(18, 41, 63, 0.55) 0%, rgba(11, 26, 43, 0) 100%);
}

.page-contact .tail-grid {
  display: grid;
  gap: 24px;
}

.page-contact .tail-h2 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(22px, 4.6vw, 30px);
  letter-spacing: 0.06em;
  color: var(--paper);
}

.page-contact .tail-p {
  margin: 0;
  max-width: 58ch;
  font-size: 16px;
  color: rgba(244, 239, 230, 0.82);
}

.page-contact .tail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-contact .hours-notes li {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 6px 24px;
    align-items: baseline;
  }

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

  .page-contact .reach-list li {
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 4px 20px;
    align-items: baseline;
  }

  .page-contact .reach-note {
    grid-column: 2;
  }

  .page-contact .tier-spec {
    grid-template-columns: 110px minmax(0, 1fr);
  }
}

@media (min-width: 960px) {
  .page-contact .pc-hero {
    padding: 56px 0 72px;
  }

  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.85fr);
    gap: 56px;
  }

  .page-contact .pc-block {
    padding: 72px 0;
  }

  .page-contact .pc-head {
    margin-bottom: 40px;
    padding-left: 28px;
  }

  .page-contact .band {
    height: 76px;
  }

  .page-contact .coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .region-layout {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.7fr);
    gap: 32px;
    align-items: start;
  }

  .page-contact .tail-grid {
    grid-template-columns: minmax(0, 1.5fr) auto;
    align-items: center;
    gap: 40px;
  }

  .page-contact .msg-body {
    padding: 24px 22px;
    font-size: 14px;
  }

  .page-contact .msg-tips {
    padding: 6px 22px 20px;
  }

  .page-contact .reach-plate {
    padding: 36px 34px 38px;
  }
}

@media (min-width: 1280px) {
  .page-contact .tier-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-card,
  .page-contact .tier,
  .page-contact .msg-copy {
    transition: none !important;
  }

  .page-contact .coop-card:hover {
    transform: none;
  }
}