.page-contact {
  position: relative;
  overflow-x: hidden;
  background: var(--ink-900);
  color: var(--paper);
}

.page-contact .breadcrumbs {
  padding-top: 22px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-masthead-wrap {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background-color: var(--ink-900);
  background-image:
    linear-gradient(rgba(30, 43, 69, 0.55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 43, 69, 0.55) 1px, transparent 1px);
  background-size: 88px 88px;
}

.page-contact .contact-ripple {
  position: absolute;
  top: -14%;
  right: -18%;
  width: min(760px, 130%);
  height: auto;
  pointer-events: none;
  z-index: 0;
  opacity: 0.75;
}

.page-contact .contact-masthead {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  padding: 40px 0 56px;
}

.page-contact .contact-masthead__lead h1 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-size: clamp(28px, 6.4vw, 50px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--paper);
  max-width: 18em;
}

.page-contact .contact-masthead__text {
  margin: 20px 0 0;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .contact-masthead__facts {
  list-style: none;
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
}

.page-contact .contact-masthead__facts li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .contact-masthead__facts b {
  color: var(--cyan);
  font-size: 17px;
  font-weight: 500;
  margin-right: 6px;
}

.page-contact .contact-masthead__actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .contact-masthead__figure {
  margin: 0;
}

.page-contact .contact-masthead__figure .figure__media {
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% 86%, 14% 100%, 0 100%);
}

.page-contact .contact-masthead__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 通道总览 ---------- */

.page-contact .contact-section-head {
  max-width: 46em;
}

.page-contact .contact-section-head h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 700;
  line-height: 1.24;
  color: var(--paper);
}

.page-contact .contact-section-head__text {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .contact-section-head--tight {
  margin-bottom: 34px;
}

.page-contact .contact-channels__grid {
  margin-top: 36px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-contact .contact-index {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--glass), transparent 78%);
  padding: 20px 18px;
}

.page-contact .contact-index__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: idx;
}

.page-contact .contact-index__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 4px;
  border-bottom: 1px solid var(--line);
  color: var(--paper);
  font-size: 14.5px;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, padding-left 0.2s ease;
}

.page-contact .contact-index__list li:last-child a {
  border-bottom: none;
}

.page-contact .contact-index__list a:hover,
.page-contact .contact-index__list a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  padding-left: 12px;
}

.page-contact .contact-index__list .coord {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-contact .contact-panel {
  position: relative;
  scroll-margin-top: 124px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 26px 20px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-contact .contact-panel + .contact-panel {
  margin-top: 22px;
}

.page-contact .contact-panel:hover {
  box-shadow: 0 0 0 1px rgba(24, 224, 255, 0.18);
}

.page-contact .contact-panel--support {
  border-left-color: var(--lava);
}

.page-contact .contact-panel--media {
  border-left-color: var(--lime);
}

.page-contact .contact-panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.page-contact .contact-panel__head h3 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(19px, 3.4vw, 25px);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .contact-panel .prose {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .contact-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .contact-list li {
  padding-left: 16px;
  border-left: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--paper);
}

.page-contact .contact-list strong {
  display: block;
  margin-bottom: 4px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.01em;
}

.page-contact .contact-panel--biz .contact-list strong {
  color: var(--cyan);
}

.page-contact .contact-panel--support .contact-list strong {
  color: var(--lava);
}

.page-contact .contact-panel--media .contact-list strong {
  color: var(--lime);
}

.page-contact .contact-list a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(24, 224, 255, 0.35);
  transition: border-color 0.2s ease;
}

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

.page-contact .contact-panel__how {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .contact-panel__how a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(24, 224, 255, 0.35);
}

.page-contact .contact-key {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--paper);
  background: var(--glass);
  border: 1px solid rgba(24, 224, 255, 0.28);
  border-radius: var(--radius);
  padding: 2px 6px;
  overflow-wrap: anywhere;
}

/* ---------- 响应时间 ---------- */

.page-contact .contact-response {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background-color: var(--ink-800);
  background-image: repeating-linear-gradient(
    90deg,
    rgba(30, 43, 69, 0.7) 0 1px,
    transparent 1px 88px
  );
}

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

.page-contact .contact-timeline li {
  position: relative;
  padding: 26px 18px 22px 0;
  border-top: 2px solid var(--line);
}

.page-contact .contact-timeline li::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--dot, var(--cyan));
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.page-contact .contact-timeline li:hover::before,
.page-contact .contact-timeline li:focus-within::before {
  background: var(--dot, var(--cyan));
  box-shadow: 0 0 12px var(--dot, var(--cyan));
}

.page-contact .contact-timeline li:nth-child(1) {
  --dot: var(--cyan);
}

.page-contact .contact-timeline li:nth-child(2) {
  --dot: var(--lava);
}

.page-contact .contact-timeline li:nth-child(3) {
  --dot: var(--amber);
}

.page-contact .contact-timeline li:nth-child(4) {
  --dot: var(--lime);
}

.page-contact .contact-timeline__clock {
  display: block;
  font-family: var(--font-mono);
  font-size: 21px;
  letter-spacing: 0.02em;
  color: var(--dot, var(--cyan));
  margin-bottom: 10px;
}

.page-contact .contact-timeline h3 {
  margin: 0;
  font-family: var(--font-head);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .contact-timeline p {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
  max-width: 24em;
}

/* ---------- 联络信息 ---------- */

.page-contact .contact-office__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-contact .contact-office__card {
  border: 1px solid var(--line);
  border-top: 3px solid var(--lava);
  border-radius: var(--radius);
  background: linear-gradient(160deg, #16223a, var(--panel) 58%, var(--ink-800));
  padding: 28px 20px;
}

.page-contact .contact-office__card h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .contact-detail {
  margin: 22px 0 0;
  display: grid;
  gap: 16px;
}

.page-contact .contact-detail dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.page-contact .contact-detail dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .contact-detail div:first-child dd,
.page-contact .contact-detail div:nth-child(2) dd {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--cyan);
}

.page-contact .contact-office__note {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-office__figure {
  margin: 0;
}

.page-contact .contact-office__figure .figure__media {
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-800);
  clip-path: polygon(0 6%, 100% 0, 100% 100%, 0 100%);
  opacity: 0.9;
}

.page-contact .contact-office__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-contact .contact-panel {
    padding: 30px 28px;
  }

  .page-contact .contact-office__card {
    padding: 34px 30px;
  }

  .page-contact .contact-timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 28px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-masthead {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: center;
    gap: 56px;
    padding: 64px 0 72px;
  }

  .page-contact .contact-masthead__lead {
    padding-bottom: 8px;
  }

  .page-contact .contact-channels__grid {
    grid-template-columns: minmax(216px, 268px) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .contact-index {
    position: sticky;
    top: 136px;
  }

  .page-contact .contact-office__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
    align-items: center;
    gap: 52px;
  }

  .page-contact .contact-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1240px) {
  .page-contact .contact-panel {
    padding: 34px 36px;
  }

  .page-contact .contact-ripple {
    right: -6%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-panel,
  .page-contact .contact-index__list a,
  .page-contact .contact-timeline li::before,
  .page-contact .contact-list a {
    transition: none;
  }
}