.page-contact {
  --pc-line: rgba(57, 242, 212, .14);
  --pc-gap: clamp(18px, 3vw, 32px);
}

.page-contact .crumbs {
  padding-top: clamp(14px, 3vw, 26px);
}

/* 首屏 */
.page-contact .contact-intro {
  padding-block: clamp(22px, 4vw, 44px) clamp(24px, 5vw, 48px);
}

.page-contact .intro {
  max-width: 900px;
}

.page-contact .intro h1 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(32px, 5.6vw, 60px);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--fog-100);
  margin: 12px 0 18px;
}

.page-contact .intro .lede {
  max-width: 60ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--mist-300);
}

.page-contact .section__head {
  max-width: 62ch;
}

/* 渠道双栏 */
.page-contact .board {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-contact .media {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line-soft);
  background: var(--ink-800);
}

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

.page-contact .board__main .media {
  aspect-ratio: 3 / 2;
  margin-bottom: 18px;
}

.page-contact .board__main .media--wide {
  aspect-ratio: 5 / 3;
}

.page-contact .chan {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .chan__item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 18px;
  padding: clamp(16px, 2.4vw, 22px);
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

.page-contact .chan__body {
  flex: 1 1 15rem;
  min-width: 0;
}

.page-contact .chan__k {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan-400);
}

.page-contact .chan__v {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2vw, 20px);
  color: var(--fog-100);
  text-decoration: none;
  word-break: break-word;
  border-bottom: 1px solid transparent;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.page-contact .chan__v:hover,
.page-contact .chan__v:focus-visible {
  color: var(--cyan-400);
  border-bottom-color: var(--cyan-400);
}

.page-contact .chan__v--plain {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.6;
  font-weight: 500;
}

.page-contact .chan__note {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist-300);
}

.page-contact .chan__act {
  flex: 0 0 auto;
  font-size: 13px;
  padding: 9px 16px;
}

.page-contact .copy-status {
  min-height: 1.2em;
  margin: 10px 0 0;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--cyan-400);
}

/* 右侧时效卡 */
.page-contact .board__side {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-contact .reply {
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--pc-line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.page-contact .reply__k {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan-400);
}

.page-contact .reply__num {
  margin: 0 0 10px;
  font-size: clamp(28px, 4.4vw, 40px);
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--fog-100);
}

.page-contact .reply__txt {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-300);
}

.page-contact .prep {
  padding: clamp(18px, 2.6vw, 24px);
  border-radius: var(--radius);
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
}

.page-contact .prep__list {
  margin: 12px 0 0;
  padding-left: 1.1em;
  display: grid;
  gap: 7px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--fog-100);
}

.page-contact .prep__list li::marker {
  color: var(--cyan-400);
}

.page-contact .board__hint {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-300);
}

/* 分段跳转 */
.page-contact .seg {
  display: flex;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 28px);
  padding-bottom: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-contact .seg a {
  flex: 0 0 auto;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
  background: var(--glass);
  color: var(--fog-100);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  text-decoration: none;
  transition: border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease);
}

.page-contact .seg a:hover,
.page-contact .seg a:focus-visible {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
  background: rgba(57, 242, 212, .08);
}

/* 问题类型卡 */
.page-contact .topics {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .topic {
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--ink-900);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  scroll-margin-top: 90px;
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}

.page-contact .topic:hover {
  border-color: var(--pc-line);
  transform: translateY(-2px);
}

.page-contact .topic__k {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan-400);
}

.page-contact .topic__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: .01em;
  color: var(--fog-100);
}

.page-contact .topic__p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-300);
}

.page-contact .topic__list {
  margin: 0;
  padding-left: 1.1em;
  display: grid;
  gap: 6px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--fog-100);
}

.page-contact .topic__list li::marker {
  color: var(--cyan-400);
}

/* 流程 */
.page-contact .route {
  display: grid;
  gap: var(--pc-gap);
  align-items: center;
  margin-top: clamp(28px, 4vw, 46px);
}

.page-contact .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 15px 0;
  border-top: 1px solid var(--line-soft);
}

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

.page-contact .steps__n {
  font-size: 14px;
  padding-top: 4px;
  color: var(--cyan-400);
}

.page-contact .steps__t {
  margin: 0 0 4px;
  font-size: 17px;
  font-weight: 600;
  color: var(--fog-100);
}

.page-contact .steps__d {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-300);
}

.page-contact .media__cap {
  padding: 10px 2px 0;
  font-size: 13px;
  color: var(--mist-300);
}

/* 资料说明 */
.page-contact .facts {
  margin: clamp(22px, 3vw, 32px) 0 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .facts > div {
  display: grid;
  gap: 5px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .facts dt {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--cyan-400);
}

.page-contact .facts dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog-100);
}

.page-contact .facts dd a {
  color: var(--cyan-400);
}

/* 收束区 */
.page-contact .before {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .before__text .lede {
  margin-bottom: 20px;
  max-width: 46ch;
  line-height: 1.8;
  color: var(--mist-300);
}

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

.page-contact .before__list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  border-radius: var(--radius-sm);
  background: var(--glass);
  border: 1px solid var(--line-soft);
  color: var(--fog-100);
  font-size: 15px;
  text-decoration: none;
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}

.page-contact .before__list a:hover,
.page-contact .before__list a:focus-visible {
  border-color: var(--cyan-400);
  transform: translateX(3px);
}

.page-contact .before__list .mono {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan-400);
}

/* 平板以上 */
@media (min-width: 720px) {
  .page-contact .topics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .facts > div {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 0 24px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-contact .board {
    grid-template-columns: 1.2fr .8fr;
    align-items: start;
  }

  .page-contact .route {
    grid-template-columns: .92fr 1.08fr;
  }

  .page-contact .before {
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .topic,
  .page-contact .before__list a {
    transition: none;
  }

  .page-contact .topic:hover,
  .page-contact .before__list a:hover {
    transform: none;
  }
}