.page-contact {
  --pc-line: var(--ink-600);
  --pc-soft: rgba(44, 230, 210, 0.14);
  padding-top: var(--header-h);
  color: var(--body-copy);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.page-contact .section {
  padding: clamp(34px, 5.5vw, 68px) 0;
}

.page-contact .section__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--paper-50);
}

.page-contact .section__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-400);
}

.page-contact .lede {
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--body-copy);
}

/* 面包屑 */
.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--mist-400);
}

.page-contact .breadcrumbs a {
  color: var(--mist-400);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.page-contact .breadcrumbs a:hover,
.page-contact .breadcrumbs a:focus-visible {
  color: var(--cyan-400);
}

.page-contact .breadcrumbs [aria-current="page"] {
  color: var(--paper-50);
}

/* 首屏框景 */
.page-contact .contact-hero {
  padding-top: clamp(20px, 3vw, 36px);
}

.page-contact .contact-frame {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--ink-600);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(44, 230, 210, 0.1) 0%, rgba(6, 19, 33, 0) 58%),
    radial-gradient(90% 80% at 96% 100%, rgba(255, 122, 46, 0.12) 0%, rgba(6, 19, 33, 0) 60%),
    var(--ink-800);
}

.page-contact .contact-frame::before,
.page-contact .contact-frame::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border: 2px solid var(--cyan-400);
  pointer-events: none;
  opacity: 0.85;
}

.page-contact .contact-frame::before {
  top: 10px;
  left: 10px;
  border-right: 0;
  border-bottom: 0;
}

.page-contact .contact-frame::after {
  right: 10px;
  bottom: 10px;
  border-top: 0;
  border-left: 0;
}

.page-contact .contact-frame__grid {
  display: grid;
  gap: 26px;
}

.page-contact .contact-frame__lead .annotation {
  display: inline-block;
  margin: 0 0 14px;
  padding: 3px 10px;
  border: 1px solid var(--ink-600);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-200);
}

.page-contact .contact-frame__lead h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 5.4vw, 46px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--paper-50);
}

.page-contact .contact-frame__lead .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.page-contact .contact-frame__hint {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist-400);
}

.page-contact .contact-frame__quick {
  align-self: start;
  padding: 20px;
  border: 1px solid var(--ink-600);
  border-radius: var(--radius);
  background: rgba(6, 19, 33, 0.6);
  border-top: 2px solid var(--orange-500);
}

.page-contact .contact-frame__quick-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist-400);
}

.page-contact .contact-frame__mail,
.page-contact .contact-frame__tel {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2vw, 18px);
  font-variant-numeric: tabular-nums;
  line-height: 1.5;
  word-break: break-all;
}

.page-contact .contact-frame__mail a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 230, 210, 0.35);
}

.page-contact .contact-frame__tel a {
  color: var(--orange-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 46, 0.4);
}

.page-contact .contact-frame__mail a:hover,
.page-contact .contact-frame__mail a:focus-visible,
.page-contact .contact-frame__tel a:hover,
.page-contact .contact-frame__tel a:focus-visible {
  border-bottom-color: currentColor;
}

.page-contact .contact-frame__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist-400);
}

/* 章节标题 */
.page-contact .contact-head {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: clamp(22px, 3.5vw, 38px);
}

.page-contact .contact-head .section__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: clamp(28px, 4.6vw, 44px);
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: transparent;
  -webkit-text-stroke: 1px var(--ink-600);
  transform: translateY(-2px);
}

/* 01 三条线 */
.page-contact .contact-channels__layout {
  display: grid;
  gap: 30px;
}

.page-contact .contact-channels__list {
  display: grid;
  gap: 16px;
}

.page-contact .contact-line {
  display: grid;
  gap: 14px;
  padding: 20px 20px 22px;
  border: 1px solid var(--ink-600);
  border-left-width: 4px;
  border-radius: 0 var(--radius) var(--radius) 0;
  background: linear-gradient(180deg, rgba(14, 36, 64, 0.75) 0%, rgba(6, 19, 33, 0.5) 100%);
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-contact .contact-line--fix {
  --line-accent: var(--orange-500);
  border-left-color: var(--orange-500);
}

.page-contact .contact-line--ask {
  --line-accent: var(--cyan-400);
  border-left-color: var(--cyan-400);
}

.page-contact .contact-line--partner {
  --line-accent: var(--paper-50);
  border-left-color: var(--paper-50);
}

.page-contact .contact-line:hover,
.page-contact .contact-line:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-panel);
}

.page-contact .contact-line__code {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--line-accent);
}

.page-contact .contact-line__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 2.4vw, 23px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--paper-50);
}

.page-contact .contact-line__fit {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-400);
}

.page-contact .contact-line__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
}

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

.page-contact .contact-line__meta {
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-variant-numeric: tabular-nums;
  color: var(--cyan-200);
  word-break: break-word;
}

.page-contact .contact-inline-link {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 230, 210, 0.35);
}

.page-contact .contact-inline-link:hover,
.page-contact .contact-inline-link:focus-visible {
  border-bottom-color: currentColor;
}

.page-contact .contact-channels__figure {
  margin: 0;
}

.page-contact .contact-channels__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--ink-600);
}

.page-contact .contact-channels__figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist-400);
}

/* 02 纠错邮件 */
.page-contact .contact-fix__grid {
  display: grid;
  gap: 24px;
}

.page-contact .contact-fix__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  counter-reset: none;
}

.page-contact .contact-fix__steps li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid rgba(27, 58, 94, 0.7);
}

.page-contact .contact-fix__steps li:last-child {
  border-bottom: 1px solid rgba(27, 58, 94, 0.7);
}

.page-contact .contact-fix__idx {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  color: var(--orange-500);
}

.page-contact .contact-fix__steps h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 16.5px;
  line-height: 1.4;
  color: var(--paper-50);
}

.page-contact .contact-fix__steps p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
}

.page-contact .contact-fix__sample {
  align-self: start;
  padding: 22px 20px;
  border: 1px solid var(--ink-600);
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, rgba(44, 230, 210, 0.12) 0%, rgba(255, 122, 46, 0.1) 100%),
    var(--ink-800);
}

.page-contact .contact-fix__sample-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--paper-50);
}

.page-contact .contact-fix__sample-code {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.85;
  color: var(--cyan-200);
  word-break: break-word;
}

.page-contact .contact-fix__sample .ticks {
  margin: 0 0 16px;
}

.page-contact .contact-fix__sample-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist-400);
}

/* 03 更新动态入口 */
.page-contact .contact-entry__panel {
  display: grid;
  gap: 22px;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--ink-600);
  border-radius: var(--radius);
  background: var(--ink-800);
}

.page-contact .contact-entry__text p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
}

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

.page-contact .contact-entry__action {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-self: center;
}

/* 04 响应时段 */
.page-contact .contact-hours__figure {
  margin: 0 0 26px;
}

.page-contact .contact-hours__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--ink-600);
}

.page-contact .contact-hours__figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mist-400);
}

.page-contact .contact-hours__notes {
  display: grid;
  gap: 14px;
}

.page-contact .contact-hours__item {
  padding: 16px 18px;
  border: 1px solid var(--ink-600);
  border-radius: var(--radius);
  background: rgba(14, 36, 64, 0.6);
}

.page-contact .contact-hours__time {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  color: var(--cyan-400);
}

.page-contact .contact-hours__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--body-copy);
}

/* 05 合作 */
.page-contact .contact-partner__grid {
  display: grid;
  gap: 20px;
}

.page-contact .contact-partner__col {
  padding: 22px 20px;
  border: 1px solid var(--ink-600);
  border-radius: var(--radius);
  background: rgba(14, 36, 64, 0.55);
}

.page-contact .contact-partner__col--aside {
  border-top: 2px solid var(--orange-500);
}

.page-contact .contact-partner__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.4;
  color: var(--paper-50);
}

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

.page-contact .contact-partner__list li {
  padding-left: 16px;
  border-left: 2px solid var(--cyan-400);
}

.page-contact .contact-partner__list strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 15px;
  color: var(--paper-50);
}

.page-contact .contact-partner__list span {
  display: block;
  font-size: 14px;
  line-height: 1.75;
  color: var(--body-copy);
}

.page-contact .contact-partner__checklist {
  counter-reset: pc-item;
}

.page-contact .contact-partner__checklist li {
  position: relative;
  padding-left: 30px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--body-copy);
  counter-increment: pc-item;
}

.page-contact .contact-partner__checklist li::before {
  content: counter(pc-item, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--orange-500);
}

.page-contact .contact-partner__note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(27, 58, 94, 0.8);
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--mist-400);
  word-break: break-word;
}

/* 站点信息 */
.page-contact .contact-meta__panel {
  display: grid;
  gap: 1px;
  border: 1px solid var(--ink-600);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-600);
}

.page-contact .contact-meta__field {
  padding: 16px 18px;
  background: var(--ink-800);
}

.page-contact .contact-meta__field .label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--mist-400);
}

.page-contact .contact-meta__field p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper-50);
  word-break: break-word;
}

.page-contact .contact-meta__field p.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
}

.page-contact .contact-meta__tip {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist-400);
}

/* 响应式 */
@media (min-width: 700px) {
  .page-contact .contact-frame__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-contact .contact-line {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 26px;
    align-items: start;
  }

  .page-contact .contact-fix__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-contact .contact-entry__panel {
    grid-template-columns: minmax(0, 1.6fr) auto;
    align-items: center;
    gap: 32px;
  }

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

  .page-contact .contact-partner__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 24px;
  }

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

@media (min-width: 1040px) {
  .page-contact .contact-channels__layout {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    gap: 48px;
    align-items: start;
  }

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

  .page-contact .contact-meta__panel {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-line {
    transition: none;
  }

  .page-contact .contact-line:hover,
  .page-contact .contact-line:focus-within {
    transform: none;
  }
}