.page-contact {
  padding-bottom: var(--stack);
}

.page-contact .breadcrumb {
  padding: 28px 0 0;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.page-contact .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-intro {
  display: grid;
  gap: 32px;
  padding: 40px 0 56px;
}

.page-contact .contact-intro h1 {
  margin: 20px 0 0;
  font-family: var(--font-head);
  font-size: clamp(2.6rem, 7vw, 6.5rem);
  font-weight: 300;
  line-height: .96;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-contact .contact-intro__lede {
  margin: 0;
  max-width: 34em;
  color: var(--muted);
  font-size: 1.0625rem;
  line-height: 1.75;
}

.page-contact .intro-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 32px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .intro-facts > div {
  display: grid;
  gap: 6px;
}

.page-contact .intro-facts dt {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .12em;
}

.page-contact .intro-facts dd {
  margin: 0;
  color: var(--neon);
  font-size: 1.05rem;
}

/* ---------- 主体两栏 ---------- */
.page-contact .contact-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.page-contact .contact-body > * {
  min-width: 0;
}

/* ---------- 联系信息板 ---------- */
.page-contact .contact-board {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  background: var(--panel);
}

.page-contact .contact-board__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 60% 50%;
  filter: grayscale(.45) contrast(1.2) brightness(.55);
}

.page-contact .contact-board::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 70% at 8% 0%, rgba(182, 255, 59, .18), transparent 58%),
    linear-gradient(180deg, rgba(7, 9, 11, .52) 0%, rgba(7, 9, 11, .95) 64%);
}

.page-contact .contact-board__inner {
  position: relative;
  display: grid;
  gap: 22px;
  padding: 32px 22px 36px;
}

.page-contact .contact-board__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .channel-list {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: rgba(7, 9, 11, .74);
}

.page-contact .channel {
  display: grid;
  gap: 8px;
  padding: 18px 20px;
}

.page-contact .channel + .channel {
  border-top: 1px solid var(--line);
}

.page-contact .channel__key {
  color: var(--yellow);
  font-size: 12px;
  letter-spacing: .14em;
}

.page-contact .channel__val {
  font-family: var(--font-data);
  font-size: clamp(1rem, 2.6vw, 1.28rem);
  line-height: 1.35;
  color: var(--neon);
  overflow-wrap: anywhere;
}

.page-contact .channel__val--text {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--white);
}

.page-contact .channel__use {
  font-size: .875rem;
  line-height: 1.65;
  color: var(--muted);
}

.page-contact .contact-board__foot {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .1em;
}

/* ---------- 右侧纵向内容 ---------- */
.page-contact .contact-lanes {
  display: grid;
  gap: 40px;
  align-content: start;
}

.page-contact .contact-lanes > * {
  min-width: 0;
}

.page-contact .lane-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--muted);
  font-size: 13px;
  letter-spacing: .04em;
  text-decoration: none;
  transition: color .18s var(--ease), background-color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .pill:hover,
.page-contact .pill:focus-visible,
.page-contact .pill.is-active {
  color: var(--ink);
  background: var(--neon);
  border-color: var(--neon);
}

.page-contact .lane {
  padding-top: 28px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 120px;
}

.page-contact .lane__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}

.page-contact .lane__num {
  flex: none;
  padding-top: .4em;
  color: var(--neon);
  font-size: .8rem;
  letter-spacing: .12em;
}

.page-contact .lane__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.35rem, 3.6vw, 2rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .lane__lede {
  margin: 0 0 24px;
  max-width: 40em;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.8;
}

.page-contact .lane__note {
  margin: 20px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--neon);
  color: var(--muted);
  font-size: .9375rem;
  line-height: 1.7;
}

/* ---------- 反馈清单 ---------- */
.page-contact .checklist {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--line);
}

.page-contact .checklist li {
  display: grid;
  gap: 6px;
  padding: 16px 20px;
  background: var(--panel);
}

.page-contact .checklist__k {
  color: var(--yellow);
  font-size: 12px;
  letter-spacing: .12em;
}

.page-contact .checklist__v {
  color: var(--white);
  font-size: .9375rem;
  line-height: 1.7;
}

.page-contact .figure {
  margin: 30px 0 0;
}

.page-contact .figure__caption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .08em;
}

/* ---------- 开户四步 ---------- */
.page-contact .steps {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 16px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--panel);
  transition: border-color .2s var(--ease);
}

.page-contact .step:hover {
  border-color: var(--neon);
}

.page-contact .step__num {
  grid-row: span 2;
  align-self: start;
  color: var(--neon);
  font-size: .85rem;
  letter-spacing: .1em;
}

.page-contact .step__name {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
}

.page-contact .step__desc {
  color: var(--muted);
  font-size: .875rem;
  line-height: 1.65;
}

.page-contact .prep {
  margin-top: 28px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: linear-gradient(180deg, rgba(182, 255, 59, .08), rgba(182, 255, 59, 0) 70%), var(--panel);
}

.page-contact .prep__title {
  margin: 0 0 12px;
  color: var(--neon);
  font-size: 12px;
  letter-spacing: .14em;
}

.page-contact .prep__list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
  color: var(--white);
  font-size: .9375rem;
  line-height: 1.7;
}

.page-contact .prep__list li::marker {
  color: var(--neon);
}

/* ---------- 引用与合作 ---------- */
.page-contact .cite-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .cite-list li {
  display: grid;
  gap: 8px;
  padding: 18px 20px;
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  background: var(--panel);
}

.page-contact .cite-list__k {
  color: var(--cyan);
  font-size: .9rem;
}

.page-contact .cite-list__v {
  color: var(--white);
  font-size: .9375rem;
  line-height: 1.7;
}

/* ---------- 响应时段 ---------- */
.page-contact .timeline {
  margin: 8px 0 28px;
}

.page-contact .timeline__marks {
  position: relative;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 22px;
}

.page-contact .timeline__marks::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--neon) 0%, var(--yellow) 100%);
}

.page-contact .tmark {
  position: relative;
  flex: 1 1 0;
  display: grid;
  gap: 6px;
  min-width: 0;
}

.page-contact .tmark::before {
  content: "";
  position: absolute;
  top: -26px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 4px rgba(182, 255, 59, .16);
}

.page-contact .tmark:last-child {
  justify-items: end;
  text-align: right;
}

.page-contact .tmark:last-child::before {
  left: auto;
  right: 0;
  background: var(--yellow);
  box-shadow: 0 0 0 4px rgba(255, 210, 63, .16);
}

.page-contact .tmark__t {
  font-size: 1.25rem;
  color: var(--neon);
}

.page-contact .tmark:last-child .tmark__t {
  color: var(--yellow);
}

.page-contact .tmark__d {
  color: var(--muted);
  font-size: .875rem;
  line-height: 1.6;
}

.page-contact .beat {
  display: grid;
  gap: 1px;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--line);
}

.page-contact .beat > div {
  display: grid;
  gap: 6px;
  padding: 16px 20px;
  background: var(--panel);
}

.page-contact .beat dt {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .12em;
}

.page-contact .beat dd {
  margin: 0;
  color: var(--white);
  font-size: .9375rem;
  line-height: 1.7;
}

/* ---------- 通信地址 ---------- */
.page-contact .postal {
  display: grid;
  gap: 10px;
  padding: 24px;
  font-style: normal;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background:
    repeating-linear-gradient(90deg, rgba(36, 44, 51, .55) 0 1px, transparent 1px 26px),
    var(--panel);
}

.page-contact .postal__line {
  font-family: var(--font-data);
  font-size: clamp(1.05rem, 3vw, 1.35rem);
  line-height: 1.5;
  color: var(--neon);
  overflow-wrap: anywhere;
}

.page-contact .postal__hint {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-contact .postal-notes {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: .9375rem;
  line-height: 1.7;
}

.page-contact .postal-notes li::marker {
  color: var(--yellow);
}

/* ---------- 收尾 ---------- */
.page-contact .contact-outro {
  padding-top: 64px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-board__inner {
    padding: 40px 34px 44px;
  }

  .page-contact .checklist li {
    grid-template-columns: 148px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }

  .page-contact .beat > div {
    grid-template-columns: 148px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }
}

@media (min-width: 901px) {
  .page-contact .contact-intro {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 56px;
    padding: 56px 0 72px;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-body {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
  }

  .page-contact .contact-lanes {
    gap: 56px;
  }

  .page-contact .contact-board {
    position: sticky;
    top: 104px;
  }
}

@media (max-width: 420px) {
  .page-contact .lane__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .page-contact .lane__num {
    padding-top: 0;
  }

  .page-contact .timeline__marks {
    gap: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pill,
  .page-contact .step,
  .page-contact .breadcrumb a {
    transition: none;
  }
}