.page-contact {
  background: var(--ink-950);
  color: var(--mist-300);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(48px, 9vw, 96px)) 0 clamp(40px, 6vw, 72px);
  background:
    radial-gradient(720px 420px at 88% 0%, rgba(255, 106, 42, 0.13), transparent 68%),
    radial-gradient(560px 360px at 12% 92%, rgba(63, 140, 138, 0.16), transparent 70%),
    var(--ink-950);
  border-bottom: 1px solid var(--ink-700);
  overflow: hidden;
}

.page-contact .contact-hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(27, 51, 72, 0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(27, 51, 72, 0.38) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 88%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 88%);
  pointer-events: none;
}

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

.page-contact .breadcrumbs {
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-contact .breadcrumbs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist-300);
}

.page-contact .breadcrumbs-item + .breadcrumbs-item::before {
  content: "/";
  margin-right: 6px;
  color: var(--ink-700);
}

.page-contact .breadcrumbs-link {
  color: var(--dusk-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .breadcrumbs-link:hover,
.page-contact .breadcrumbs-link:focus-visible {
  color: var(--white);
  border-bottom-color: var(--neon-500);
}

.page-contact .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dusk-300);
  margin: 0 0 18px;
}

.page-contact .eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--neon-500);
}

.page-contact .contact-hero-copy {
  max-width: 820px;
}

.page-contact h1 {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 5.4vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--white);
  text-wrap: balance;
}

.page-contact .lead {
  margin: 0;
  max-width: 640px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--mist-300);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-contact .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 2px;
  border: 1px solid var(--btn-bd, transparent);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .btn-neon {
  --btn-bg: var(--neon-500);
  --btn-fg: var(--ink-950);
  --btn-bd: var(--neon-500);
  background: var(--btn-bg);
  color: var(--btn-fg);
  border-color: var(--btn-bd);
}

.page-contact .btn-neon:hover,
.page-contact .btn-neon:focus-visible {
  background: var(--neon-200);
  border-color: var(--neon-200);
  transform: translateY(-1px);
}

.page-contact .btn-ghost {
  --btn-bg: transparent;
  --btn-fg: var(--dusk-300);
  --btn-bd: var(--ink-700);
  background: transparent;
  color: var(--dusk-300);
  border-color: var(--ink-700);
}

.page-contact .btn-ghost:hover,
.page-contact .btn-ghost:focus-visible {
  color: var(--white);
  border-color: var(--neon-500);
}

.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--neon-200);
  outline-offset: 3px;
}

/* ---------- 信息卡区 ---------- */
.page-contact .contact-channels {
  padding: clamp(44px, 6vw, 84px) 0;
}

.page-contact .contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

.page-contact .info-card {
  border: 1px solid var(--ink-700);
  border-radius: 3px;
  padding: clamp(24px, 4vw, 40px);
  box-shadow: var(--shadow-soft);
  background: var(--cream-100);
  color: var(--ink-950);
}

.page-contact .info-card-head {
  border-bottom: 1px solid rgba(7, 19, 31, 0.16);
  padding-bottom: 20px;
  margin-bottom: 6px;
}

.page-contact .info-card-kicker {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--dusk-500);
}

.page-contact .info-card h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 850;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.2;
  color: var(--ink-950);
}

.page-contact .info-card-sub {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(7, 19, 31, 0.68);
}

.page-contact .info-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding: 18px 0;
  border-bottom: 1px dashed rgba(7, 19, 31, 0.18);
}

.page-contact .info-row-label {
  flex: 0 0 auto;
  min-width: 76px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dusk-500);
}

.page-contact .info-value {
  flex: 1 1 220px;
  font-size: clamp(15px, 1.9vw, 20px);
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink-950);
  word-break: break-word;
}

.page-contact .copy-btn {
  flex: 0 0 auto;
  align-self: center;
  padding: 5px 13px;
  border: 1px solid rgba(7, 19, 31, 0.28);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-950);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease),
    color var(--dur) var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: var(--ink-950);
  border-color: var(--ink-950);
  color: var(--cream-100);
}

.page-contact .info-card-note {
  margin: 22px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--dusk-500);
  font-size: 13px;
  line-height: 1.75;
  color: rgba(7, 19, 31, 0.72);
}

.page-contact .contact-aside {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
}

.page-contact .aside-note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.34em;
  color: var(--dusk-300);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  align-self: flex-start;
  padding-left: 2px;
  border-left: 1px solid var(--ink-700);
  min-height: 120px;
}

.page-contact .aside-figure {
  margin: 0;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--ink-700);
  border-radius: 3px;
  overflow: hidden;
  background: var(--ink-850);
}

.page-contact .aside-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .aside-facts {
  display: grid;
  gap: 18px;
  padding-top: 20px;
  border-top: 1px solid var(--ink-700);
}

.page-contact .aside-fact {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-contact .aside-fact-num {
  flex: 0 0 auto;
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 600;
  color: var(--neon-500);
  line-height: 1;
}

.page-contact .aside-fact-text {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist-300);
}

/* ---------- 通用章节头 ---------- */
.page-contact .section-head {
  display: grid;
  gap: 8px;
  padding-bottom: 18px;
  margin-bottom: clamp(26px, 4vw, 40px);
  border-bottom: 1px solid var(--ink-700);
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.18;
  color: var(--white);
  text-wrap: balance;
}

.page-contact .section-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--dusk-300);
}

/* ---------- 咨询范围 ---------- */
.page-contact .contact-scope {
  padding: clamp(44px, 6vw, 84px) 0;
  background: var(--ink-850);
  border-top: 1px solid var(--ink-700);
  border-bottom: 1px solid var(--ink-700);
}

.page-contact .scope-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-contact .scope-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ink-700);
}

.page-contact .scope-item {
  position: relative;
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 14px;
  padding: 22px 0 22px 0;
  border-bottom: 1px solid var(--ink-700);
  transition: padding-left var(--dur) var(--ease);
}

.page-contact .scope-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 2px;
  background: var(--neon-500);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--dur) var(--ease);
}

.page-contact .scope-item:hover {
  padding-left: 12px;
}

.page-contact .scope-item:hover::before {
  transform: scaleY(1);
}

.page-contact .scope-index {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--dusk-300);
  padding-top: 4px;
}

.page-contact .scope-body h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.3;
  color: var(--white);
}

.page-contact .scope-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist-300);
}

.page-contact .scope-figure {
  margin: 0;
  border: 1px solid var(--ink-700);
  border-radius: 3px;
  overflow: hidden;
  background: var(--ink-950);
}

.page-contact .scope-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 10 / 7;
  height: auto;
  object-fit: cover;
}

.page-contact .media-frame-caption {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--ink-700);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--dusk-300);
}

/* ---------- 回复时间 ---------- */
.page-contact .contact-reply {
  padding: clamp(44px, 6vw, 84px) 0;
}

.page-contact .reply-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .reply-card {
  padding: 24px;
  border: 1px solid var(--ink-700);
  border-radius: 3px;
  background: linear-gradient(160deg, rgba(27, 51, 72, 0.55), rgba(13, 32, 51, 0.9));
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .reply-card:hover {
  border-color: var(--neon-500);
  transform: translateY(-2px);
}

.page-contact .reply-tag {
  margin: 0 0 14px;
  padding: 4px 10px;
  display: inline-block;
  border: 1px solid var(--ink-700);
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--dusk-300);
  background: rgba(7, 19, 31, 0.5);
}

.page-contact .reply-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.32;
  color: var(--white);
}

.page-contact .reply-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist-300);
}

/* ---------- 站内提交 ---------- */
.page-contact .contact-submit {
  padding: clamp(44px, 6vw, 84px) 0;
  background:
    linear-gradient(180deg, rgba(63, 140, 138, 0.1), transparent 72%),
    var(--ink-850);
  border-top: 1px solid var(--ink-700);
  border-bottom: 1px solid var(--ink-700);
}

.page-contact .submit-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-contact .submit-copy h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 850;
  font-size: clamp(25px, 3.2vw, 36px);
  line-height: 1.16;
  color: var(--white);
}

.page-contact .submit-copy p {
  margin: 0 0 16px;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist-300);
}

.page-contact .submit-copy .btn {
  margin-top: 8px;
}

.page-contact .submit-fields {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--ink-700);
}

.page-contact .submit-fields li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--ink-700);
}

.page-contact .field-key {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--neon-200);
}

.page-contact .field-hint {
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-300);
}

/* ---------- 合作与纠错 ---------- */
.page-contact .contact-coop {
  padding: clamp(44px, 6vw, 84px) 0;
}

.page-contact .coop-list {
  display: grid;
  gap: 12px;
}

.page-contact .coop-item {
  border: 1px solid var(--ink-700);
  border-radius: 3px;
  background: var(--ink-850);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .coop-item[open] {
  border-color: var(--dusk-500);
}

.page-contact .coop-item summary {
  cursor: pointer;
  padding: 18px 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.4;
  color: var(--white);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.page-contact .coop-item summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--neon-500);
  transition: transform var(--dur) var(--ease);
}

.page-contact .coop-item[open] summary::after {
  content: "−";
}

.page-contact .disclosure-body {
  padding: 0 20px 20px;
  border-left: 2px solid var(--neon-500);
  margin-left: 20px;
  padding-left: 18px;
}

.page-contact .disclosure-body ul {
  margin: 0 0 14px;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.page-contact .disclosure-body li {
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-300);
}

.page-contact .disclosure-body li::marker {
  color: var(--dusk-500);
}

.page-contact .disclosure-body p {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--dusk-300);
}

/* ---------- 快捷入口 ---------- */
.page-contact .contact-shortcuts {
  padding: 0 0 clamp(56px, 8vw, 104px);
}

.page-contact .shortcut-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .shortcut-link {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--ink-700);
  border-radius: 3px;
  background: rgba(13, 32, 51, 0.72);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.page-contact .shortcut-link:hover,
.page-contact .shortcut-link:focus-visible {
  border-color: var(--neon-500);
  background: var(--ink-850);
  transform: translateY(-2px);
}

.page-contact .shortcut-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.35;
  color: var(--white);
}

.page-contact .shortcut-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist-300);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .reply-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .shortcut-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .submit-fields li {
    grid-template-columns: 132px 1fr;
    align-items: baseline;
    gap: 16px;
  }

  .page-contact .aside-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .aside-fact {
    flex-direction: column;
    gap: 8px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(40px, 5vw, 72px);
  }

  .page-contact .contact-aside {
    padding-top: 8px;
  }

  .page-contact .scope-layout {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    gap: clamp(36px, 4vw, 56px);
  }

  .page-contact .scope-figure {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-contact .submit-layout {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

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

  .page-contact .info-row-label {
    min-width: 86px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .btn,
  .page-contact .copy-btn,
  .page-contact .scope-item,
  .page-contact .reply-card,
  .page-contact .shortcut-link,
  .page-contact .breadcrumbs-link {
    transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
      background var(--dur) var(--ease);
  }

  .page-contact .btn-neon:hover,
  .page-contact .btn-neon:focus-visible,
  .page-contact .reply-card:hover,
  .page-contact .shortcut-link:hover,
  .page-contact .shortcut-link:focus-visible {
    transform: none;
  }

  .page-contact .scope-item:hover {
    padding-left: 0;
  }
}
<<<END>>>