.page-contact {
  background: var(--deep-black);
  color: var(--light-grey);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact a:not(.btn) {
  color: var(--electric-blue);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color 0.25s ease;
}

.page-contact a:not(.btn):hover {
  color: var(--acid-green);
}

/* ---------- 01 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: var(--space-xl) 0 var(--space-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background:
    radial-gradient(ellipse at 78% 20%, rgba(184, 41, 143, 0.2), transparent 62%),
    radial-gradient(ellipse at 12% 90%, rgba(30, 144, 255, 0.12), transparent 55%),
    var(--deep-black);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-xl);
}

.page-contact .contact-hero__intro {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 8vw, 4.5rem);
  line-height: 1.05;
  font-weight: 900;
  color: var(--pure-white);
  letter-spacing: 0.02em;
  margin: var(--space-md) 0 var(--space-lg);
  text-transform: uppercase;
}

.page-contact .contact-hero__sub {
  display: block;
  font-size: clamp(0.95rem, 3vw, 1.35rem);
  font-weight: 700;
  color: var(--neon-purple);
  letter-spacing: 0.14em;
  margin-top: 10px;
}

.page-contact .contact-hero__lead {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--light-grey);
  max-width: 36em;
  margin-bottom: var(--space-lg);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  width: 100%;
}

.page-contact .contact-hero__actions .btn {
  width: 100%;
  justify-content: center;
}

/* 终端窗口 */
.page-contact .contact-hero__terminal {
  position: relative;
  display: flex;
  align-items: center;
}

.page-contact .terminal-window {
  width: 100%;
  min-height: 260px;
  background: linear-gradient(135deg, #151515 0%, #1f1f1f 60%, #241a25 100%);
  border: 1px solid rgba(184, 41, 143, 0.55);
  box-shadow:
    10px 10px 0 rgba(184, 41, 143, 0.22),
    0 0 44px rgba(30, 144, 255, 0.1);
  transform: rotate(1deg);
}

.page-contact .terminal-window__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 12px;
  background: #0d0d0d;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.page-contact .terminal-window__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.page-contact .terminal-window__dot--a {
  background: var(--neon-purple);
}

.page-contact .terminal-window__dot--b {
  background: var(--electric-blue);
}

.page-contact .terminal-window__dot--c {
  background: var(--acid-green);
}

.page-contact .terminal-window__title {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mid-grey);
}

.page-contact .terminal-window__body {
  padding: var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 2.2;
}

.page-contact .terminal-window__body p {
  margin: 0;
  color: var(--light-grey);
}

.page-contact .terminal-window__body p:first-child {
  color: var(--electric-blue);
}

.page-contact .terminal-window__body p:nth-child(2) {
  color: var(--acid-green);
}

.page-contact .terminal-window__cursor {
  margin-top: var(--space-md);
  color: var(--mid-grey);
}

.page-contact .terminal-window__blink {
  color: var(--acid-green);
  animation: pc-blink 1s steps(1) infinite;
}

@keyframes pc-blink {
  50% {
    opacity: 0;
  }
}

/* ---------- 02 联系渠道 ---------- */
.page-contact .contact-channels {
  padding: var(--space-2xl) 0;
  position: relative;
}

.page-contact .contact-channels__head {
  display: grid;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.page-contact .contact-channels__head h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 5vw, 2.2rem);
  font-weight: 800;
  color: var(--pure-white);
  margin: var(--space-sm) 0 0;
}

.page-contact .contact-channels__note {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--mid-grey);
  border-left: 2px solid var(--electric-blue);
  padding-left: var(--space-md);
  margin: 0;
}

.page-contact .contact-channels__grid {
  display: grid;
  gap: var(--space-lg);
}

.page-contact .channel-card {
  position: relative;
  background: linear-gradient(145deg, #212121 0%, var(--dark-grey) 65%, #171717 100%);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-top: 3px solid var(--neon-purple);
  padding: var(--space-lg);
  transition:
    transform 0.3s ease,
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}

.page-contact .channel-card:hover {
  transform: translateY(-4px) rotate(-0.4deg);
  border-color: rgba(184, 41, 143, 0.5);
  box-shadow:
    10px 10px 0 rgba(184, 41, 143, 0.16),
    0 0 36px rgba(30, 144, 255, 0.07);
}

.page-contact .channel-card--phone {
  border-top-color: var(--electric-blue);
}

.page-contact .channel-card--phone:hover {
  border-color: rgba(30, 144, 255, 0.5);
}

.page-contact .channel-card--address {
  border-top-color: var(--bright-orange);
}

.page-contact .channel-card--address:hover {
  border-color: rgba(255, 106, 0, 0.5);
}

.page-contact .channel-card__index {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bright-orange);
  margin-bottom: var(--space-sm);
}

.page-contact .channel-card__label {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--pure-white);
  margin-bottom: var(--space-sm);
}

.page-contact .channel-card__desc {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--light-grey);
  margin-bottom: var(--space-lg);
}

.page-contact .channel-card__value-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-wrap: wrap;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.09);
}

.page-contact .channel-card__value--mono {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--electric-blue);
  overflow-wrap: anywhere;
}

.page-contact .channel-card--phone .channel-card__value--mono {
  font-size: 1.35rem;
  color: var(--acid-green);
}

.page-contact .channel-card__value--addr {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--pure-white);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  color: var(--mid-grey);
  border: 1px solid rgba(136, 136, 136, 0.4);
  padding: 4px 8px;
}

.page-contact .channel-side-note {
  background: transparent;
  border: 1px dashed rgba(136, 136, 136, 0.35);
  padding: var(--space-lg);
}

.page-contact .channel-side-note__code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  color: var(--electric-blue);
  margin-bottom: var(--space-sm);
}

.page-contact .channel-side-note p {
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--mid-grey);
  margin: 0;
}

/* ---------- 03 地址与地图 ---------- */
.page-contact .contact-location {
  padding: 0 0 var(--space-2xl);
}

.page-contact .contact-location__grid {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
}

.page-contact .contact-location__figure {
  margin: 0;
  border: 1px solid rgba(30, 144, 255, 0.35);
  background: var(--dark-grey);
  box-shadow: 12px 12px 0 rgba(30, 144, 255, 0.12);
}

.page-contact .contact-location__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.page-contact .contact-location__caption {
  display: block;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--mid-grey);
  background: #101010;
}

.page-contact .contact-location__aside {
  padding: var(--space-lg);
}

.page-contact .contact-location__aside h2 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--pure-white);
  margin: var(--space-sm) 0 var(--space-lg);
}

.page-contact .contact-location__meta {
  margin: 0;
  padding: 0;
}

.page-contact .contact-location__meta div {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.page-contact .contact-location__meta dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--mid-grey);
  padding-top: 4px;
}

.page-contact .contact-location__meta dd {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--light-grey);
}

/* ---------- 04 问题反馈流程 ---------- */
.page-contact .contact-process {
  padding: var(--space-xl) 0 var(--space-2xl);
  background: linear-gradient(180deg, transparent 0%, rgba(184, 41, 143, 0.05) 100%);
}

.page-contact .contact-process__head {
  margin-bottom: var(--space-xl);
}

.page-contact .contact-process__head h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 5vw, 2.2rem);
  font-weight: 800;
  color: var(--pure-white);
  margin: var(--space-sm) 0 var(--space-sm);
}

.page-contact .contact-process__head p:last-child {
  font-size: 0.9375rem;
  color: var(--mid-grey);
  margin: 0;
}

.page-contact .contact-process__layout {
  display: grid;
  gap: var(--space-xl);
}

.page-contact .contact-process__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-md);
}

.page-contact .process-step {
  position: relative;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: rgba(26, 26, 26, 0.88);
  border-left: 3px solid var(--electric-blue);
  transition:
    transform 0.3s ease,
    background-color 0.3s ease;
}

.page-contact .process-step:hover {
  transform: translateX(4px);
  background: var(--dark-grey);
}

.page-contact .process-step:nth-child(2) {
  border-left-color: var(--bright-orange);
}

.page-contact .process-step:nth-child(3) {
  border-left-color: var(--acid-green);
}

.page-contact .process-step__num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  color: var(--electric-blue);
}

.page-contact .process-step:nth-child(2) .process-step__num {
  color: var(--bright-orange);
}

.page-contact .process-step:nth-child(3) .process-step__num {
  color: var(--acid-green);
}

.page-contact .process-step h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--pure-white);
  margin: 0 0 var(--space-sm);
  text-transform: uppercase;
}

.page-contact .process-step p {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--light-grey);
  margin: 0;
}

.page-contact .contact-process__figure {
  margin: 0;
  border: 1px solid rgba(168, 255, 0, 0.3);
  background: var(--dark-grey);
  padding: 6px;
}

.page-contact .contact-process__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.page-contact .contact-process__figure figcaption {
  padding: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-align: center;
  color: var(--mid-grey);
}

/* ---------- 05 渠道使用边界 ---------- */
.page-contact .contact-boundary {
  padding: var(--space-2xl) 0;
}

.page-contact .contact-boundary__head {
  margin-bottom: var(--space-xl);
}

.page-contact .contact-boundary__head h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 5vw, 2.2rem);
  font-weight: 800;
  color: var(--pure-white);
  margin: var(--space-sm) 0 var(--space-sm);
}

.page-contact .contact-boundary__head p:last-child {
  font-size: 0.9375rem;
  color: var(--mid-grey);
  margin: 0;
}

.page-contact .contact-boundary__grid {
  display: grid;
  gap: var(--space-lg);
}

.page-contact .boundary-item {
  background: rgba(26, 26, 26, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: var(--space-lg);
  transition:
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}

.page-contact .boundary-item:hover {
  border-color: rgba(184, 41, 143, 0.45);
  box-shadow: 8px 8px 0 rgba(184, 41, 143, 0.1);
}

.page-contact .boundary-item h3 {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--bright-orange);
  margin: 0 0 var(--space-sm);
}

.page-contact .boundary-item:nth-child(1) h3 {
  color: var(--electric-blue);
}

.page-contact .boundary-item:nth-child(2) h3 {
  color: var(--bright-orange);
}

.page-contact .boundary-item:nth-child(3) h3 {
  color: var(--neon-purple);
}

.page-contact .boundary-item:nth-child(4) h3 {
  color: var(--acid-green);
}

.page-contact .boundary-item p {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--light-grey);
  margin: 0;
}

.page-contact .contact-boundary__trust {
  margin: var(--space-xl) 0 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 3px solid var(--acid-green);
  background: rgba(168, 255, 0, 0.045);
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--light-grey);
}

/* ---------- 响应式增强 ---------- */
@media (min-width: 560px) {
  .page-contact .contact-hero__actions .btn {
    width: auto;
  }

  .page-contact .contact-location__meta div {
    grid-template-columns: 88px 1fr;
  }
}

@media (min-width: 760px) {
  .page-contact .contact-channels__head {
    grid-template-columns: 1fr 1fr;
    align-items: end;
  }

  .page-contact .contact-channels__grid {
    grid-template-columns: repeat(12, 1fr);
  }

  .page-contact .channel-card {
    padding: var(--space-xl);
  }

  .page-contact .channel-card--email {
    grid-column: span 7;
  }

  .page-contact .channel-card--phone {
    grid-column: span 5;
    align-self: end;
    margin-top: 48px;
  }

  .page-contact .channel-card--address {
    grid-column: span 8;
  }

  .page-contact .channel-side-note {
    grid-column: span 4;
    align-self: start;
    margin-top: 48px;
    padding: var(--space-lg);
  }

  .page-contact .contact-boundary__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__layout {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--space-xl);
    align-items: center;
  }

  .page-contact .contact-hero__intro {
    grid-column: span 7;
    padding-top: var(--space-lg);
  }

  .page-contact .contact-hero__terminal {
    grid-column: 9 / span 4;
  }

  .page-contact .contact-location__grid {
    grid-template-columns: 7fr 5fr;
    gap: var(--space-2xl);
  }

  .page-contact .contact-location__aside {
    padding: 0;
  }

  .page-contact .contact-process__layout {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-contact .contact-process__steps {
    gap: var(--space-lg);
  }

  .page-contact .contact-process__figure {
    position: sticky;
    top: calc(var(--header-height) + var(--space-lg));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .terminal-window__blink {
    animation: none;
  }

  .page-contact .channel-card,
  .page-contact .process-step,
  .page-contact .boundary-item {
    transition: none;
  }
}