.page-contact {
  --c-edge: 2px solid var(--line);
  --c-edge-neon: 2px solid var(--neon);
  position: relative;
  padding-bottom: calc(var(--dash-h) + 56px);
  overflow-x: clip;
}

/* ---------- 面包屑与首屏 ---------- */
.page-contact .breadcrumb {
  padding-top: calc(var(--step) * 3);
}

.page-contact .contact-masthead__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--step) * 4);
  align-items: start;
}

.page-contact .contact-masthead__h1 {
  margin: calc(var(--step) * 2) 0 0;
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(2.35rem, 8.5vw, 4.75rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .contact-masthead__text {
  margin-top: calc(var(--step) * 3);
  color: var(--ink-2);
  max-width: 34em;
}

.page-contact .contact-masthead__meta {
  list-style: none;
  margin: calc(var(--step) * 4) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  max-width: 34em;
}

.page-contact .contact-masthead__metaRow {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--step));
  justify-content: space-between;
  align-items: baseline;
  padding: calc(var(--step) * 1.5) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-masthead__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.page-contact .contact-masthead__val {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  color: var(--ink);
}

.page-contact .contact-masthead__figure {
  border: var(--c-edge);
  box-shadow: 8px 8px 0 var(--shadow-solid);
}

.page-contact .media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 渠道分流带 ---------- */
.page-contact .contact-channels__hint {
  margin-top: calc(var(--step) * 1.5);
  color: var(--ink-2);
}

.page-contact .contact-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--step) * 2);
  margin-top: calc(var(--step) * 4);
  align-items: start;
}

.page-contact .contact-channel {
  background: var(--panel);
  border: var(--c-edge);
  box-shadow: 8px 8px 0 var(--shadow-solid);
  padding: calc(var(--step) * 3);
  transition: border-color var(--ease), background-color var(--ease);
}

.page-contact .contact-channel:hover,
.page-contact .contact-channel:focus {
  border-color: var(--neon);
  background: var(--grass);
}

.page-contact .contact-channel:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.page-contact .contact-channel__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--corner);
}

.page-contact .contact-channel__name {
  margin: calc(var(--step) * 1.5) 0 0;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .contact-channel__route {
  margin: calc(var(--step)) 0 0;
  font-size: 13px;
  color: var(--neon);
}

.page-contact .contact-channel__scenes {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin-top: 0;
  transition: max-height 220ms ease, opacity 160ms ease, margin-top 220ms ease;
}

.page-contact .contact-channel:hover .contact-channel__scenes,
.page-contact .contact-channel:focus .contact-channel__scenes,
.page-contact .contact-channel:focus-within .contact-channel__scenes {
  max-height: 20rem;
  opacity: 1;
  margin-top: calc(var(--step) * 2);
}

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

.page-contact .contact-channel__list li {
  position: relative;
  padding: calc(var(--step)) 0 calc(var(--step)) calc(var(--step) * 2.5);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(var(--step) * 2.1);
  width: 10px;
  height: 2px;
  background: var(--corner);
}

/* ---------- 邮箱与电话 ---------- */
.page-contact .contact-direct__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--step) * 3);
}

.page-contact .contact-direct__cell {
  border: var(--c-edge);
  border-left: 6px solid var(--neon);
  background: var(--pitch-deep);
  padding: calc(var(--step) * 4) calc(var(--step) * 3);
}

.page-contact .contact-direct__cell--muted {
  border-left-color: var(--line);
}

.page-contact .contact-direct__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin: 0;
}

.page-contact .contact-direct__value {
  font-family: var(--font-num);
  font-size: clamp(1.35rem, 5.2vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--neon);
  margin: calc(var(--step) * 1.5) 0 0;
  overflow-wrap: anywhere;
  word-break: break-word;
  user-select: all;
  -webkit-user-select: all;
}

.page-contact .contact-direct__desc {
  margin: calc(var(--step) * 2) 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-2);
  max-width: 32em;
}

.page-contact .contact-direct__cell .tag {
  display: inline-block;
  margin-top: calc(var(--step) * 2);
}

/* ---------- 办公地点与来访 ---------- */
.page-contact .contact-visit__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--step) * 4);
  align-items: start;
}

.page-contact .contact-visit__addr {
  font-family: var(--font-num);
  font-size: clamp(1.05rem, 3.6vw, 1.7rem);
  line-height: 1.4;
  letter-spacing: 0.03em;
  color: var(--ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: calc(var(--step) * 2) 0;
  margin: calc(var(--step) * 3) 0;
  overflow-wrap: anywhere;
}

.page-contact .contact-visit__details {
  margin-top: calc(var(--step) * 3);
  border: var(--c-edge);
  background: var(--panel);
}

.page-contact .contact-visit__summary {
  cursor: pointer;
  list-style: none;
  padding: calc(var(--step) * 2) calc(var(--step) * 3);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: calc(var(--step) * 1.5);
}

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

.page-contact .contact-visit__summary::before {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--neon);
  flex: none;
}

.page-contact .contact-visit__details[open] .contact-visit__summary::before {
  content: "－";
}

.page-contact .contact-visit__summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.page-contact .contact-visit__list {
  list-style: none;
  margin: 0;
  padding: 0 calc(var(--step) * 3) calc(var(--step) * 2);
}

.page-contact .contact-visit__list li {
  position: relative;
  padding: calc(var(--step)) 0 calc(var(--step)) calc(var(--step) * 2.5);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
  border-top: 1px solid var(--line);
}

.page-contact .contact-visit__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(var(--step) * 2.1);
  width: 10px;
  height: 2px;
  background: var(--neon);
}

.page-contact .contact-visit__note {
  margin-top: calc(var(--step) * 3);
  max-width: 40em;
}

.page-contact .contact-visit__figure {
  border: var(--c-edge);
  box-shadow: 8px 8px 0 var(--shadow-solid);
}

/* ---------- 纠错清单 ---------- */
.page-contact .contact-brief__hint {
  margin-top: calc(var(--step) * 1.5);
  color: var(--ink-2);
}

.page-contact .contact-brief__list {
  list-style: none;
  margin: calc(var(--step) * 4) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--step) * 2);
}

.page-contact .contact-brief__item {
  border: var(--c-edge);
  border-top: 4px solid var(--corner);
  background: var(--panel);
  padding: calc(var(--step) * 3);
}

.page-contact .contact-brief__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ink-2);
}

.page-contact .contact-brief__label {
  display: block;
  margin-top: calc(var(--step));
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .contact-brief__text {
  margin: calc(var(--step) * 1.5) 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ---------- 相关栏目 ---------- */
.page-contact .contact-links__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--step) * 2);
}

.page-contact .contact-links__card {
  display: block;
  border: var(--c-edge);
  background: var(--pitch-deep);
  padding: calc(var(--step) * 3);
  text-decoration: none;
  transition: border-color var(--ease), background-color var(--ease);
}

.page-contact .contact-links__card:hover {
  border-color: var(--neon);
  background: var(--panel);
}

.page-contact .contact-links__card:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.page-contact .contact-links__label {
  display: block;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .contact-links__text {
  display: block;
  margin-top: calc(var(--step));
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ---------- 页尾收束 ---------- */
.page-contact .contact-colophon__row {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--step) * 2);
  justify-content: space-between;
  align-items: baseline;
  border-top: 1px solid var(--line);
  padding-top: calc(var(--step) * 2.5);
}

.page-contact .contact-colophon__brand {
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .contact-colophon__icp {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-2);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-brief__list {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-contact .contact-links__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-masthead__grid {
    grid-template-columns: 1fr 1.05fr;
    gap: calc(var(--step) * 6);
  }
  .page-contact .contact-channels__grid {
    grid-template-columns: 1.5fr 1fr 0.85fr;
  }
  .page-contact .contact-direct__grid {
    grid-template-columns: 1.2fr 1fr;
  }
  .page-contact .contact-visit__grid {
    grid-template-columns: 1.15fr 1fr;
    gap: calc(var(--step) * 6);
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-brief__list {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 420px) {
  .page-contact .contact-direct__value {
    font-size: 1.2rem;
  }
}

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