.page-contact {
  --contact-card-accent: 5px;
  --contact-line: rgba(169, 184, 201, 0.2);
  background: var(--night);
  color: var(--body-text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .container {
  width: 100%;
  max-width: var(--page-max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.page-contact .contact-breadcrumb-bar {
  padding: 16px 0 8px;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.page-contact .breadcrumb a:hover {
  color: var(--chalk);
}

.page-contact .breadcrumb [aria-current="page"] {
  color: var(--orange);
}

.page-contact .breadcrumb-sep {
  opacity: 0.5;
}

/* ---------- 封面 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: flex-end;
  min-height: clamp(340px, 62vh, 540px);
  padding: clamp(40px, 10vw, 96px) 0 clamp(32px, 6vw, 64px);
  overflow: hidden;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .contact-hero-img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.7) brightness(0.55);
}

.page-contact .contact-hero-shade {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 90% at 82% 0%, rgba(57, 230, 224, 0.18), transparent 62%),
    linear-gradient(180deg, rgba(7, 20, 38, 0.72) 0%, rgba(7, 20, 38, 0.92) 62%, var(--night) 100%);
}

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

.page-contact .eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .contact-title {
  margin: 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7.4vw, 4rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.015em;
  color: var(--chalk);
}

.page-contact .contact-lead {
  margin: 18px 0 0;
  max-width: 36em;
  font-size: clamp(15px, 2.6vw, 17px);
  line-height: 1.8;
  color: var(--body-text);
}

.page-contact .contact-jumps {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-jumps a {
  display: inline-block;
  padding: 9px 18px;
  border: 1px solid rgba(247, 250, 252, 0.24);
  border-radius: var(--radius-pill);
  background: rgba(5, 16, 31, 0.5);
  color: var(--chalk);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-contact .contact-jumps a:hover {
  border-color: var(--orange);
  color: var(--orange);
}

/* ---------- 章节头 ---------- */
.page-contact .section {
  padding: clamp(44px, 8vw, 84px) 0;
}

.page-contact .section--tight {
  padding: clamp(32px, 6vw, 56px) 0;
}

.page-contact .section-head {
  max-width: 44em;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-contact .section-index {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.2vw, 2.3rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-contact .section-note {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .rule {
  height: 1px;
  background: var(--contact-line);
}

/* ---------- 信息卡 ---------- */
.page-contact .contact-card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .contact-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 236px;
  padding: clamp(22px, 4vw, 32px);
  border-radius: var(--radius-lg);
  border-top: var(--contact-card-accent) solid var(--orange);
  background: var(--paper);
  color: var(--ink-text);
  box-shadow: 0 26px 44px -34px rgba(0, 0, 0, 0.95);
}

.page-contact .contact-card--mail {
  border-top-color: var(--green);
}

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

.page-contact .contact-card-label {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(18, 33, 47, 0.55);
}

.page-contact .contact-card-value {
  margin: 0;
  font-size: clamp(16px, 2.6vw, 18px);
  font-weight: 600;
  line-height: 1.65;
  color: var(--ink-text);
  word-break: break-word;
}

.page-contact .contact-card-value--mail {
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.4vw, 17px);
  letter-spacing: 0.01em;
  word-break: break-all;
}

.page-contact .contact-card-value--phone {
  font-size: clamp(24px, 5.4vw, 32px);
  line-height: 1.25;
  letter-spacing: 0.04em;
}

.page-contact .contact-card-hint {
  margin: auto 0 0;
  padding-top: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(18, 33, 47, 0.62);
}

/* ---------- 复制按钮 ---------- */
.page-contact .copy-btn {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: var(--ink);
  color: var(--chalk);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-contact .copy-btn:hover {
  background: var(--orange);
  color: var(--ink);
}

.page-contact .copy-btn[data-copied] {
  background: var(--green);
  color: var(--ink);
}

/* ---------- 对外联络通道 ---------- */
.page-contact .contact-channel-section {
  background: var(--night-2);
  border-top: 1px solid var(--contact-line);
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .contact-channel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding: clamp(22px, 5vw, 40px);
  border: 1px solid rgba(57, 230, 224, 0.24);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(90% 120% at 0% 0%, rgba(57, 230, 224, 0.12), transparent 60%),
    var(--ink);
}

.page-contact .contact-channel-kicker {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .contact-channel-mail {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(17px, 3.6vw, 26px);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .contact-channel-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 22px;
}

.page-contact .contact-channel .copy-btn {
  background: var(--orange);
  color: var(--ink);
}

.page-contact .contact-channel .copy-btn:hover {
  background: var(--chalk);
}

.page-contact .contact-channel-side p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--body-text);
}

.page-contact .contact-channel-side p:last-child {
  margin-bottom: 0;
}

/* ---------- 纠错 ---------- */
.page-contact .contact-fix-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-contact .contact-fix-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-fix-list li {
  padding: 18px 0;
  border-top: 1px solid var(--contact-line);
}

.page-contact .contact-fix-list li:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-contact .contact-fix-tag {
  margin-bottom: 10px;
}

.page-contact .contact-fix-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--body-text);
}

.page-contact .contact-fix-note {
  margin: 18px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--green);
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .contact-template {
  align-self: start;
  overflow: hidden;
  border: 1px solid var(--contact-line);
  border-radius: var(--radius-md);
  background: var(--ink);
}

.page-contact .contact-template-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .contact-template-head .copy-btn {
  background: transparent;
  border-color: rgba(169, 184, 201, 0.35);
  color: var(--chalk);
  padding: 7px 16px;
}

.page-contact .contact-template-head .copy-btn:hover {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

.page-contact .contact-template-body {
  margin: 0;
  padding: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 2;
  color: var(--body-text);
  white-space: pre-wrap;
  word-break: break-word;
}

/* ---------- 联络场景 ---------- */
.page-contact .contact-scenes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-contact .contact-scenes-visual .media-frame {
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--night-2);
}

.page-contact .contact-scenes-visual img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.75) brightness(0.8);
}

.page-contact .contact-scenes-body .section-index {
  margin-bottom: 10px;
}

.page-contact .contact-scene {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--contact-line);
}

.page-contact .contact-scene-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--chalk);
}

.page-contact .contact-scene-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--body-text);
}

.page-contact .contact-scene-foot {
  margin: 26px 0 0;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: var(--night-2);
  font-size: 13px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 备案 ---------- */
.page-contact .contact-filing {
  background: var(--night-2);
  border-top: 1px solid var(--contact-line);
}

.page-contact .contact-filing-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.page-contact .contact-filing-text {
  flex: 1 1 260px;
  min-width: 0;
}

.page-contact .contact-filing-desc {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .contact-filing-chip {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  border: 1px solid rgba(255, 176, 32, 0.36);
  border-radius: var(--radius-pill);
  background: var(--ink);
}

.page-contact .contact-filing-label {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-contact .contact-filing-num {
  font-size: 15px;
  font-weight: 600;
  color: var(--chalk);
  word-break: break-all;
}

.page-contact .contact-filing-chip .copy-btn {
  padding: 6px 14px;
  font-size: 12px;
  background: transparent;
  border-color: rgba(169, 184, 201, 0.35);
  color: var(--body-text);
}

.page-contact .contact-filing-chip .copy-btn:hover {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink);
}

/* ---------- 延伸阅读 ---------- */
.page-contact .contact-next-title {
  margin-top: 26px;
  font-size: clamp(1.2rem, 3.4vw, 1.6rem);
}

.page-contact .contact-next-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-next-list a {
  display: block;
  padding: 16px 20px;
  border: 1px solid var(--contact-line);
  border-radius: var(--radius-md);
  background: var(--night-2);
  color: var(--body-text);
  font-size: 14px;
  line-height: 1.7;
  text-decoration: none;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-contact .contact-next-list a:hover {
  border-color: var(--orange);
  color: var(--chalk);
  transform: translateY(-2px);
}

/* ---------- 桌面 ---------- */
@media (min-width: 760px) {
  .page-contact .contact-card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

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

@media (min-width: 900px) {
  .page-contact .contact-channel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
    gap: 44px;
  }

  .page-contact .contact-channel-side {
    padding-left: 40px;
    border-left: 1px solid rgba(169, 184, 201, 0.24);
  }

  .page-contact .contact-fix-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    gap: 48px;
  }

  .page-contact .contact-scenes-grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    gap: 48px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .copy-btn,
  .page-contact .contact-jumps a,
  .page-contact .contact-next-list a {
    transition: none;
  }

  .page-contact .contact-next-list a:hover {
    transform: none;
  }
}