.page-contact {
  --pc-card: var(--panel);
  --pc-border: var(--hair);
  --pc-radius: 14px;
  --pc-section-gap: clamp(46px, 7vw, 88px);
  padding-bottom: clamp(56px, 9vw, 112px);
}

.page-contact .grid-12 {
  row-gap: clamp(22px, 3vw, 34px);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  margin: clamp(20px, 3vw, 32px) 0 0;
}
.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.page-contact .breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.page-contact .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: var(--hair);
}
.page-contact .breadcrumb__item[aria-current="page"] {
  color: var(--brand);
}
.page-contact .breadcrumb__link {
  color: var(--ink-2);
  text-decoration: none;
  transition: color 0.16s var(--ease);
}
.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--brand);
}

/* ---------- 首屏索引头 ---------- */
.page-contact .contact-hero {
  padding: clamp(26px, 4vw, 48px) 0 0;
}
.page-contact .contact-hero__title {
  margin: 16px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(36px, 7vw, 72px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.page-contact .contact-hero__slash {
  color: var(--brand);
  margin: 0 0.06em;
  font-weight: 400;
}
.page-contact .contact-hero__lead {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: clamp(16px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--ink-body);
}
.page-contact .contact-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 30px;
  margin: 30px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--pc-border);
  list-style: none;
}
.page-contact .contact-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.page-contact .contact-hero__facts .num {
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--brand);
}
.page-contact .contact-hero__facts em {
  font-style: normal;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
}

.page-contact .contact-hero__aside {
  align-self: start;
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius);
  background: var(--pc-card);
  padding: 20px 18px;
  box-shadow: var(--shadow-soft);
}
.page-contact .rail__title {
  margin: 0 0 14px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}
.page-contact .rail__list {
  display: flex;
  flex-direction: column;
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .rail__item + .rail__item {
  border-top: 1px solid var(--pc-border);
}
.page-contact .rail__link {
  display: flex;
  gap: 10px;
  padding: 10px 2px;
  font-size: 14px;
  color: var(--ink-2);
  text-decoration: none;
  transition: color 0.16s var(--ease), padding-left 0.16s var(--ease);
}
.page-contact .rail__link:hover,
.page-contact .rail__link:focus-visible,
.page-contact .rail__link[aria-current] {
  color: var(--brand);
  padding-left: 8px;
}

/* ---------- 通用章节 ---------- */
.page-contact .pc-section {
  padding: var(--pc-section-gap) 0 0;
}
.page-contact .pc-section .section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: clamp(22px, 3vw, 36px);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--pc-border);
}
.page-contact .section-head h2 {
  margin: 0;
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-contact .section-head__note {
  margin: 0;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

/* ---------- 联系渠道 ---------- */
.page-contact .channel-card {
  position: relative;
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius);
  background: var(--pc-card);
  padding: clamp(20px, 2.6vw, 28px);
  box-shadow: var(--shadow-soft);
  transition: border-color 0.16s var(--ease), transform 0.16s var(--ease);
}
.page-contact .channel-card + .channel-card {
  margin-top: clamp(18px, 2.4vw, 24px);
}
.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: var(--brand);
  transform: translateY(-2px);
}
.page-contact .channel-card__head {
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-contact .channel-card__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--pc-border);
  border-radius: 6px;
  background: var(--mist);
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--brand);
}
.page-contact .channel-card__title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
}
.page-contact .channel-card__head .tag {
  margin-left: auto;
}
.page-contact .channel-card__value {
  margin: 18px 0 0;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: clamp(19px, 3.4vw, 32px);
  font-weight: 600;
  line-height: 1.26;
  letter-spacing: -0.01em;
  color: var(--white);
  word-break: break-all;
}
.page-contact .channel-card__note {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink-2);
}

.page-contact .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  padding: 8px 14px;
  border: 1px solid var(--pc-border);
  border-radius: 8px;
  background: transparent;
  color: var(--ink-2);
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease), background 0.16s var(--ease);
}
.page-contact .copy-btn:hover {
  border-color: var(--brand);
  background: var(--mist);
  color: var(--brand);
}
.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}
.page-contact .copy-btn__done {
  display: none;
}
.page-contact .copy-btn[data-copied] {
  border-color: var(--accent);
  background: rgba(255, 107, 53, 0.08);
  color: var(--accent);
}
.page-contact .copy-btn[data-copied] .copy-btn__idle {
  display: none;
}
.page-contact .copy-btn[data-copied] .copy-btn__done {
  display: inline;
}

.page-contact .pc-routes {
  height: 100%;
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius);
  background:
    linear-gradient(180deg, rgba(0, 229, 160, 0.06), rgba(0, 229, 160, 0) 46%),
    var(--pc-card);
  padding: clamp(18px, 2.4vw, 24px);
}
.page-contact .pc-routes h3 {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.page-contact .pc-routes ul {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .pc-routes li {
  padding-left: 14px;
  border-left: 2px solid var(--pc-border);
  transition: border-color 0.16s var(--ease);
}
.page-contact .pc-routes li:hover,
.page-contact .pc-routes li:focus-within {
  border-left-color: var(--brand);
}
.page-contact .pc-routes strong {
  display: block;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
}
.page-contact .pc-routes span {
  display: block;
  margin-top: 5px;
  font-size: 13.5px;
  line-height: 1.66;
  color: var(--ink-2);
}

/* ---------- 自助排查清单 ---------- */
.page-contact .pc-checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--pc-border);
}
.page-contact .pc-checklist__item {
  border-bottom: 1px solid var(--pc-border);
}
.page-contact .pc-checklist__link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: start;
  padding: 18px 6px;
  text-decoration: none;
  color: inherit;
  transition: background 0.16s var(--ease), padding-left 0.16s var(--ease);
}
.page-contact .pc-checklist__link:hover,
.page-contact .pc-checklist__link:focus-visible {
  background: var(--mist);
  padding-left: 16px;
}
.page-contact .pc-checklist__no {
  padding-top: 4px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--brand);
}
.page-contact .pc-checklist__link:hover .pc-checklist__no {
  color: var(--accent);
}
.page-contact .pc-checklist__body strong {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}
.page-contact .pc-checklist__body span {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.68;
  color: var(--ink-2);
}
.page-contact .pc-checklist__go {
  font-family: var(--font-num);
  color: var(--muted);
  transition: color 0.16s var(--ease), transform 0.16s var(--ease);
}
.page-contact .pc-checklist__link:hover .pc-checklist__go,
.page-contact .pc-checklist__link:focus-visible .pc-checklist__go {
  color: var(--brand);
  transform: translateX(3px);
}

/* ---------- 合作对接 ---------- */
.page-contact .pc-partner-lead {
  margin: 0 0 26px;
  max-width: 66ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--ink-body);
}
.page-contact .pc-ticks {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .pc-ticks li {
  display: flex;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  background: var(--pc-card);
  transition: border-color 0.16s var(--ease), transform 0.16s var(--ease);
}
.page-contact .pc-ticks li:hover,
.page-contact .pc-ticks li:focus-within {
  border-color: var(--brand);
  transform: translateY(-2px);
}
.page-contact .pc-tick {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  color: var(--brand);
}
.page-contact .pc-ticks strong {
  display: block;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
}
.page-contact .pc-ticks p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-contact .pc-materials {
  height: 100%;
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius);
  background: var(--pc-card);
  padding: clamp(18px, 2.4vw, 24px);
}
.page-contact .pc-materials h3 {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.page-contact .pc-materials ol {
  display: flex;
  flex-direction: column;
  gap: 11px;
  margin: 0;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.68;
  color: var(--ink-2);
}
.page-contact .pc-materials li::marker {
  font-family: var(--font-num);
  color: var(--brand);
}
.page-contact .pc-materials__hint {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--pc-border);
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--ink-2);
}

/* ---------- 办公地址 ---------- */
.page-contact .pc-address {
  position: relative;
}
.page-contact .pc-address::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(35, 42, 54, 0.8) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, rgba(35, 42, 54, 0.8) 0 1px, transparent 1px 64px);
  -webkit-mask-image: radial-gradient(120% 90% at 78% 42%, #000 0%, transparent 72%);
  mask-image: radial-gradient(120% 90% at 78% 42%, #000 0%, transparent 72%);
}
.page-contact .pc-address > .wrap {
  position: relative;
  z-index: 1;
}
.page-contact .pc-address__title {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-contact .pc-address__value {
  margin: 20px 0 0;
  max-width: 30ch;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--white);
}
.page-contact .pc-address__note {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--ink-2);
}
.page-contact .pc-address__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 34px;
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--pc-border);
}
.page-contact .pc-address__meta dt {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.page-contact .pc-address__meta dd {
  margin: 7px 0 0;
  font-size: 14.5px;
  color: var(--ink-2);
}
.page-contact .media-frame {
  position: relative;
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius);
  background: var(--pc-card);
}
.page-contact .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.03) 0 1px, transparent 1px 4px);
}

/* ---------- 回复时段 ---------- */
.page-contact .pc-hours__list {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .pc-hours__list li {
  position: relative;
  padding: 15px 0 15px 24px;
  border-top: 1px solid var(--pc-border);
}
.page-contact .pc-hours__list li:first-child {
  border-top: 0;
  padding-top: 4px;
}
.page-contact .pc-hours__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.14);
}
.page-contact .pc-hours__list li:first-child::before {
  top: 11px;
}
.page-contact .pc-hours__list li.is-off::before {
  background: transparent;
  border: 1px solid var(--muted);
  box-shadow: none;
}
.page-contact .pc-hours__list .num {
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--brand);
}
.page-contact .pc-hours__list li.is-off .num {
  color: var(--ink-2);
}
.page-contact .pc-hours__list p {
  margin: 7px 0 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--ink-2);
}

/* ---------- 收尾 ---------- */
.page-contact .pc-tail {
  margin-top: clamp(52px, 8vw, 92px);
}
.page-contact .pc-tail__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: clamp(26px, 4vw, 42px);
  border-top: 1px solid var(--pc-border);
}
.page-contact .pc-tail__text {
  margin: 0;
  max-width: 50ch;
  font-size: 16px;
  line-height: 1.72;
  color: var(--ink-2);
}
.page-contact .pc-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 桌面端坐标索引固定 ---------- */
@media (min-width: 961px) {
  .page-contact .contact-hero__aside {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }
}

/* ---------- 平板与手机 ---------- */
@media (max-width: 960px) {
  .page-contact .contact-hero__aside {
    position: static;
  }
  .page-contact .pc-checklist__link {
    grid-template-columns: auto 1fr;
    gap: 14px;
  }
  .page-contact .pc-checklist__go {
    display: none;
  }
  .page-contact .pc-ticks li {
    padding: 15px 16px;
  }
}

@media (max-width: 640px) {
  .page-contact .contact-hero__title {
    font-size: clamp(30px, 9.6vw, 42px);
  }
  .page-contact .contact-hero__facts {
    gap: 14px 22px;
  }
  .page-contact .channel-card__value {
    font-size: 19px;
  }
  .page-contact .pc-tail__inner {
    flex-direction: column;
    align-items: stretch;
  }
  .page-contact .pc-tail__actions .btn {
    flex: 1 1 auto;
    justify-content: center;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .pc-ticks li,
  .page-contact .pc-checklist__link,
  .page-contact .pc-checklist__go,
  .page-contact .rail__link {
    transition: none;
  }
  .page-contact .channel-card:hover,
  .page-contact .pc-ticks li:hover {
    transform: none;
  }
  .page-contact .pc-checklist__link:hover .pc-checklist__go {
    transform: none;
  }
}