.page-contact {
  position: relative;
  color: var(--text-white);
  font-family: var(--font-body);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding-block: 16px 0;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(36px, 6vw, 84px) clamp(44px, 7vw, 96px);
  background:
    radial-gradient(760px 420px at 88% 4%, rgba(108, 59, 244, .44), transparent 66%),
    radial-gradient(560px 360px at 2% 94%, rgba(43, 224, 255, .16), transparent 70%),
    var(--night-black);
  border-bottom: 1px solid var(--line-grid);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(58, 42, 110, .55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(58, 42, 110, .55) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
  opacity: .65;
  pointer-events: none;
}

.page-contact .contact-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__coord {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .2em;
  color: var(--ember-orange);
  overflow-wrap: anywhere;
}

.page-contact .contact-hero__title {
  margin: 0 0 20px;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 6.6vw, 4.25rem);
  line-height: 1.02;
  letter-spacing: -.02em;
}

.page-contact .contact-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(.95rem, 2.4vw, 1.0625rem);
  line-height: 1.75;
  color: var(--dim);
}

.page-contact .contact-hero__aside {
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--dim-2);
}

.page-contact .contact-hero__aside a {
  color: var(--electric-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 224, 255, .45);
}

.page-contact .contact-hero__aside a:hover {
  border-bottom-color: var(--electric-blue);
}

.page-contact .contact-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--text-white);
  text-decoration: none;
  background: var(--glass-fill);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: border-color .3s var(--ease), color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-contact .chip:hover,
.page-contact .chip:focus-visible {
  color: var(--electric-blue);
  border-color: var(--electric-blue);
  box-shadow: 0 0 22px rgba(43, 224, 255, .2);
}

/* ---------- 通用章节节奏 ---------- */
.page-contact .contact-channels,
.page-contact .contact-scope,
.page-contact .contact-brief,
.page-contact .contact-partner,
.page-contact .contact-callback,
.page-contact .contact-identity {
  padding-block: clamp(44px, 6.5vw, 92px);
}

.page-contact .section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 24px;
  margin-bottom: clamp(24px, 4vw, 40px);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-grid);
}

.page-contact .section__head h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4vw, 2.375rem);
  line-height: 1.12;
  letter-spacing: -.015em;
}

/* ---------- 联系方式卡 ---------- */
.page-contact .contact-channels {
  position: relative;
  overflow: hidden;
}

.page-contact .contact-channels__glow {
  position: absolute;
  inset: 0;
  z-index: 0;
  margin: 0;
  pointer-events: none;
}

.page-contact .contact-channels__glow img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .38;
}

.page-contact .contact-channels__glow::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 10, 18, .84), rgba(11, 10, 18, .95) 58%, var(--night-black));
}

.page-contact .contact-channels > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .contact-channels__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: clamp(16px, 2.4vw, 24px);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: clamp(22px, 3vw, 32px);
  background: var(--glass-fill);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--slant)), calc(100% - var(--slant)) 100%, 0 100%);
  transition: transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 58px;
  height: 4px;
  background: linear-gradient(90deg, var(--ember-orange), transparent);
}

.page-contact .channel-card--phone::before {
  background: linear-gradient(90deg, var(--electric-blue), transparent);
}

.page-contact .channel-card--addr::before {
  background: linear-gradient(90deg, var(--neon-green), transparent);
}

.page-contact .channel-card:hover {
  transform: translateY(-2px);
  border-color: var(--electric-blue);
  box-shadow: 0 20px 52px rgba(43, 224, 255, .14);
}

.page-contact .channel-card__index {
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .18em;
  color: var(--ember-orange);
}

.page-contact .channel-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -.005em;
}

.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(.9375rem, 2.6vw, 1.0625rem);
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--text-white);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__value--mono {
  font-size: clamp(1.125rem, 3.4vw, 1.375rem);
  letter-spacing: .08em;
  color: var(--neon-green);
}

.page-contact .channel-card__note {
  margin: 0;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--dim);
}

/* ---------- 受理范围 ---------- */
.page-contact .contact-scope__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
}

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

.page-contact .scope-item {
  position: relative;
  padding: 20px 22px;
  background: var(--void-gray);
  border-left: 2px solid var(--line-soft);
  border-radius: var(--radius);
}

.page-contact .scope-item--p1 {
  border-left-color: var(--neon-green);
}

.page-contact .scope-item--p2 {
  border-left-color: var(--electric-blue);
}

.page-contact .scope-item--p3 {
  border-left-color: var(--ember-orange);
}

.page-contact .scope-item__badge {
  display: inline-block;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .14em;
  color: var(--neon-green);
  border: 1px solid currentColor;
  border-radius: var(--radius);
}

.page-contact .scope-item--p2 .scope-item__badge {
  color: var(--electric-blue);
}

.page-contact .scope-item--p3 .scope-item__badge {
  color: var(--ember-orange);
}

.page-contact .scope-item h3 {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
}

.page-contact .scope-item p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--dim);
}

.page-contact .contact-scope__side {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.page-contact .contact-scope__hint {
  margin: 0;
  padding-left: 14px;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--dim-2);
  border-left: 2px solid var(--line-soft);
}

/* ---------- 邮件清单 ---------- */
.page-contact .contact-brief {
  background:
    linear-gradient(180deg, rgba(22, 20, 31, .72), rgba(11, 10, 18, 0) 62%),
    var(--night-black);
  border-top: 1px solid var(--line-grid);
  border-bottom: 1px solid var(--line-grid);
}

.page-contact .contact-brief__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 56px);
}

.page-contact .contact-brief__intro h2 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  line-height: 1.14;
  letter-spacing: -.015em;
}

.page-contact .contact-brief__intro p {
  margin: 0;
  max-width: 44ch;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--dim);
}

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

.page-contact .brief-list__item {
  position: relative;
  counter-increment: brief;
  padding: 18px 0 18px 54px;
  border-bottom: 1px solid var(--line-grid);
}

.page-contact .brief-list__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .brief-list__item::before {
  content: counter(brief, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 18px;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--ember-orange);
}

.page-contact .brief-list__item h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
}

.page-contact .brief-list__item p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--dim);
}

/* ---------- 合作与媒体 ---------- */
.page-contact .contact-partner {
  background: var(--night-black);
}

.page-contact .partner-panel {
  padding: clamp(24px, 4.4vw, 52px);
  background: var(--paper-cream);
  color: var(--ink-brown);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--slant)), calc(100% - var(--slant)) 100%, 0 100%);
}

.page-contact .partner-panel .eyebrow {
  color: var(--phantom-purple);
}

.page-contact .partner-panel .eyebrow::before {
  background: var(--phantom-purple);
}

.page-contact .partner-panel__head {
  max-width: 62ch;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(36, 30, 26, .22);
}

.page-contact .partner-panel__head h2 {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.375rem, 3.6vw, 2.125rem);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--ink-brown);
}

.page-contact .partner-panel__head p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(36, 30, 26, .78);
}

.page-contact .partner-panel__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 38px);
  margin-top: clamp(22px, 3.4vw, 38px);
}

.page-contact .partner-item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--ink-brown);
}

.page-contact .partner-item p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(36, 30, 26, .78);
}

.page-contact .partner-item a {
  color: var(--ink-brown);
  text-decoration: none;
  border-bottom: 1px solid var(--phantom-purple);
}

.page-contact .partner-item a:hover {
  background: rgba(108, 59, 244, .14);
}

/* ---------- 回拨说明 ---------- */
.page-contact .contact-callback {
  padding-block: clamp(36px, 5vw, 72px);
}

.page-contact .callback-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 46px);
  padding: clamp(24px, 3.6vw, 40px);
  background: linear-gradient(118deg, rgba(43, 224, 255, .1), rgba(108, 59, 244, .2) 56%, rgba(11, 10, 18, 0));
  border: 1px solid var(--line-cyan);
  clip-path: polygon(var(--slant) 0, 100% 0, 100% 100%, 0 100%, 0 var(--slant));
}

.page-contact .callback-strip__body h2 {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.375rem, 3.6vw, 2rem);
  line-height: 1.16;
  letter-spacing: -.015em;
}

.page-contact .callback-strip__body p {
  margin: 0;
  max-width: 54ch;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--dim);
}

.page-contact .callback-strip__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0;
}

.page-contact .callback-strip__facts div {
  padding-left: 14px;
  border-left: 1px solid var(--line-cyan);
}

.page-contact .callback-strip__facts dt {
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .16em;
  color: var(--dim-2);
}

.page-contact .callback-strip__facts dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: .9375rem;
  color: var(--neon-green);
}

/* ---------- 备案与主体 ---------- */
.page-contact .contact-identity {
  padding-block: clamp(36px, 5vw, 72px);
  border-top: 1px solid var(--line-grid);
}

.page-contact .identity-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 18px 0 0;
  padding: 0;
  background: var(--line-grid);
  border: 1px solid var(--line-grid);
}

.page-contact .identity-grid > div {
  padding: 18px 20px;
  background: var(--night-black);
}

.page-contact .identity-grid dt {
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .16em;
  color: var(--ember-orange);
}

.page-contact .identity-grid dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: .9375rem;
  line-height: 1.5;
  color: var(--text-white);
  overflow-wrap: anywhere;
}

.page-contact .identity-note {
  margin: 16px 0 0;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--dim-2);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .partner-panel__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-contact .callback-strip {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: end;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-scope__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .contact-brief__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .chip {
    transition: none;
  }
}
</main>