.page-contact {
  position: relative;
  padding: 100px 16px 104px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  background:
    radial-gradient(1100px 600px at 88% -8%, rgba(123, 92, 255, 0.20), transparent 62%),
    radial-gradient(820px 520px at 4% 14%, rgba(53, 224, 216, 0.12), transparent 60%),
    linear-gradient(180deg, #070B1A 0%, #080E22 55%, #070B1A 100%);
  overflow-x: hidden;
}

.page-contact > * {
  max-width: 1160px;
  margin-inline: auto;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  margin-bottom: 42px;
}

.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-mute);
}

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

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

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

.page-contact .breadcrumb-item[aria-current="page"] {
  color: var(--cyan);
}

/* ---------- 通用章节 ---------- */
.page-contact .section {
  margin-top: 96px;
}

.page-contact .section-head {
  max-width: 680px;
  margin-bottom: 36px;
}

.page-contact .section-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .section-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: 0.005em;
  color: var(--text);
}

.page-contact .section-desc {
  margin: 0;
  font-size: 16px;
  color: var(--text-dim);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: 34px;
}

.page-contact .hero-copy h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.01em;
  background: linear-gradient(96deg, #EAF1FF 0%, #35E0D8 62%, #7B5CFF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-contact .hero-lede {
  margin: 0;
  max-width: 62ch;
  font-size: 16.5px;
  color: var(--text-dim);
}

.page-contact .hero-visual {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(14, 23, 51, 0.85);
  overflow: hidden;
}

.page-contact .media-frame img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.9) brightness(0.82) contrast(1.06);
}

/* ---------- 三条通道 ---------- */
.page-contact .channel-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px 24px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(22, 32, 74, 0.92), rgba(14, 23, 51, 0.96));
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.page-contact .channel::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(42, 54, 99, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(42, 54, 99, 0.5) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.4;
  -webkit-mask-image: radial-gradient(125% 105% at 100% 0%, #000 0%, transparent 74%);
  mask-image: radial-gradient(125% 105% at 100% 0%, #000 0%, transparent 74%);
}

.page-contact .channel > * {
  position: relative;
  z-index: 1;
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: 0 20px 46px -28px rgba(53, 224, 216, 0.8);
}

.page-contact .channel--mail {
  border-color: rgba(242, 180, 90, 0.5);
  box-shadow: 0 0 0 1px rgba(242, 180, 90, 0.12), 0 26px 62px -36px rgba(242, 180, 90, 0.85);
}

.page-contact .channel--mail:hover,
.page-contact .channel--mail:focus-within {
  border-color: var(--gold);
  box-shadow: 0 0 0 1px rgba(242, 180, 90, 0.28), 0 28px 66px -32px rgba(242, 180, 90, 0.95);
}

.page-contact .channel-sticker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(7, 11, 26, 0.72);
}

.page-contact .channel-sticker em {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-contact .channel-sticker i {
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-contact .channel--mail .channel-sticker {
  border-color: rgba(242, 180, 90, 0.45);
}

.page-contact .channel--mail .channel-sticker i {
  color: var(--gold);
}

.page-contact .channel--visit .channel-sticker {
  border-color: rgba(123, 92, 255, 0.45);
}

.page-contact .channel--visit .channel-sticker i {
  color: #A99BFF;
}

.page-contact .channel-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
}

.page-contact .channel-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-contact .channel-value {
  margin: auto 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.75;
  word-break: break-word;
  color: var(--cyan);
}

.page-contact .channel--mail .channel-value {
  color: var(--gold);
  font-size: 15px;
}

.page-contact .channel--phone .channel-value {
  font-size: 21px;
  letter-spacing: 0.05em;
}

.page-contact .channel--visit .channel-value {
  color: var(--text);
  font-size: 14px;
}

.page-contact .channel-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-mute);
}

/* ---------- 服务时段 ---------- */
.page-contact .window-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-contact .dial {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(14, 23, 51, 0.8);
  overflow: hidden;
}

.page-contact .window-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  overflow: hidden;
}

.page-contact .window-fact {
  padding: 20px 22px;
  background: linear-gradient(180deg, rgba(22, 32, 74, 0.72), rgba(14, 23, 51, 0.95));
}

.page-contact .window-fact dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.page-contact .window-fact dd {
  margin: 8px 0 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}

/* ---------- 邮件写法 ---------- */
.page-contact .mail-samples {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .fold {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(14, 23, 51, 0.8);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.page-contact .fold:hover {
  border-color: rgba(53, 224, 216, 0.5);
}

.page-contact .fold-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  transition: color 0.2s ease;
}

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

.page-contact .fold-summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
}

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

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

.page-contact .fold-body {
  padding: 18px 20px 22px;
  border-top: 1px solid var(--line);
  animation: pc-contact-fade 0.22s ease both;
}

@keyframes pc-contact-fade {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-contact .code-hint {
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--text-mute);
}

.page-contact .code-line {
  margin: 0 0 8px;
  padding: 11px 14px;
  border-left: 2px solid var(--cyan);
  background: rgba(7, 11, 26, 0.85);
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text);
  word-break: break-word;
}

.page-contact .fold-note {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 处理节奏 ---------- */
.page-contact .pace-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .pace-list .fold-summary {
  font-size: 15.5px;
}

.page-contact .pace-tag {
  flex: none;
  padding: 3px 9px;
  border: 1px solid rgba(53, 224, 216, 0.45);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-contact .pace-item:nth-child(2) .pace-tag {
  border-color: rgba(123, 92, 255, 0.5);
  color: #A99BFF;
}

.page-contact .pace-item:nth-child(3) .pace-tag {
  border-color: rgba(242, 180, 90, 0.5);
  color: var(--gold);
}

.page-contact .pace-item:nth-child(4) .pace-tag {
  border-color: rgba(91, 228, 155, 0.45);
  color: var(--ok);
}

.page-contact .pace-list .fold-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-dim);
}

/* ---------- 来访与邮寄 ---------- */
.page-contact .address-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  overflow: hidden;
}

.page-contact .address-block {
  padding: 24px 22px;
  background:
    linear-gradient(to right, rgba(42, 54, 99, 0.35) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(to bottom, rgba(42, 54, 99, 0.35) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(180deg, rgba(22, 32, 74, 0.88), rgba(14, 23, 51, 0.96));
}

.page-contact .address-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.page-contact .address-value {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  word-break: break-word;
}

.page-contact .address-tip {
  margin: 20px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--warn);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-dim);
}

/* ---------- 自助入口 ---------- */
.page-contact .helper-strip {
  margin-top: 96px;
  padding: 30px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(122deg, rgba(123, 92, 255, 0.16), rgba(14, 23, 51, 0.92) 58%, rgba(53, 224, 216, 0.1));
}

.page-contact .helper-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  line-height: 1.32;
  color: var(--text);
}

.page-contact .helper-desc {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: 15px;
  color: var(--text-dim);
}

.page-contact .helper-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-contact .helper-link {
  display: block;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(7, 11, 26, 0.6);
  font-size: 14.5px;
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.page-contact .helper-link:hover,
.page-contact .helper-link:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateX(3px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-contact .window-facts {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .helper-links {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 860px) {
  .page-contact {
    padding: 112px 32px 120px;
  }

  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
    gap: 28px 44px;
  }

  .page-contact .hero-copy {
    grid-column: 1;
  }

  .page-contact .hero-visual {
    grid-column: 2;
  }

  .page-contact .channel-row {
    grid-column: 1 / -1;
    grid-template-columns: 1.28fr 0.96fr 0.92fr;
    gap: 22px;
    margin-top: 16px;
  }

  .page-contact .window-grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    align-items: center;
    gap: 40px;
  }

  .page-contact .mail-samples {
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }

  .page-contact .address-strip {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.8fr) minmax(0, 0.8fr);
  }
}

@media (min-width: 1100px) {
  .page-contact .hero-copy h1 {
    font-size: 46px;
  }

  .page-contact .section-title {
    font-size: 32px;
  }

  .page-contact .section {
    margin-top: 112px;
  }

  .page-contact .helper-strip {
    margin-top: 112px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .fold,
  .page-contact .helper-link,
  .page-contact .breadcrumb-item a {
    transition: none;
  }

  .page-contact .channel:hover,
  .page-contact .channel:focus-within,
  .page-contact .helper-link:hover,
  .page-contact .helper-link:focus-visible {
    transform: none;
  }

  .page-contact .fold-body {
    animation: none;
  }
}