.page-contact .contact-hero {
  display: grid;
  gap: clamp(22px, 3.6vw, 42px);
  padding: clamp(22px, 4vw, 46px) 0 clamp(30px, 5vw, 58px);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-hero__lede {
  margin: 16px 0 0;
  max-width: 56ch;
  font-family: var(--font-body);
  font-size: clamp(15.5px, 1.7vw, 17px);
  line-height: 1.8;
  color: var(--pale);
}

.page-contact .contact-hero__chips {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .contact-hero__media {
  margin: 0;
  position: relative;
}

.page-contact .contact-hero__media .mlabel {
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
}

/* ---------- 通道卡片 ---------- */

.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .channel {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  background: var(--moss);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 2px;
  background: var(--lime);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 180ms ease;
  z-index: 2;
}

.page-contact .channel--hot::before {
  background: var(--orange);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.42);
}

.page-contact .channel:hover::before,
.page-contact .channel:focus-within::before {
  transform: scaleY(1);
}

.page-contact .channel__index {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 18px 0;
  border-right: 1px solid var(--line);
  background: rgba(18, 17, 15, 0.42);
}

.page-contact .channel__num {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--lime);
}

.page-contact .channel--hot .channel__num {
  color: var(--orange);
}

.page-contact .channel__axis {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--rock);
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

.page-contact .channel__body {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: clamp(18px, 3vw, 28px);
}

.page-contact .channel__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.4vw, 23px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .channel__desc {
  margin: 0;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--pale);
}

.page-contact .channel__value {
  margin: 0;
  padding: 10px 13px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: rgba(18, 17, 15, 0.5);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(14px, 1.9vw, 18px);
  letter-spacing: 0.01em;
  color: var(--lime);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel--hot .channel__value {
  color: var(--orange);
}

.page-contact .channel__usage {
  margin: 2px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--rock);
}

.page-contact .channel__usage::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--clay);
  transform: translateY(-3px);
}

/* ---------- 北京运营 ---------- */

.page-contact .place {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
}

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

.page-contact .place__body h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .place__body > p {
  margin: 14px 0 0;
  max-width: 60ch;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--pale);
}

.page-contact .place__list {
  margin: 22px 0 0;
  display: grid;
  border-top: 1px solid var(--line);
}

.page-contact .place__list > div {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .place__list dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--rock);
}

.page-contact .place__list dd {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--paper);
  overflow-wrap: anywhere;
}

/* ---------- 答复节奏 ---------- */

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

.page-contact .pace-item {
  display: grid;
  gap: 8px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--pulse);
  border-radius: var(--radius);
  background: linear-gradient(140deg, rgba(42, 59, 50, 0.6), rgba(14, 26, 22, 0.92));
  transition: border-color 180ms ease;
}

.page-contact .pace-item:hover {
  border-color: var(--line-strong);
  border-left-color: var(--lime);
}

.page-contact .pace-item__k {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-contact .pace-item p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--pale);
}

/* ---------- 延伸入口 ---------- */

.page-contact .route-card {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 22px 20px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(42, 59, 50, 0.62), rgba(14, 26, 22, 0.94));
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease;
}

.page-contact .route-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  width: 30px;
  height: 2px;
  background: var(--clay);
  transition: width 180ms ease, background-color 180ms ease;
}

.page-contact .route-card:hover,
.page-contact .route-card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--lime);
}

.page-contact .route-card:hover::after,
.page-contact .route-card:focus-visible::after {
  width: 64px;
  background: var(--lime);
}

.page-contact .route-card__idx {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--rock);
}

.page-contact .route-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .route-card__desc {
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--pale);
}

.page-contact .route-card__go {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--lime);
}

.page-contact .route-card__go::before {
  content: "→ ";
  color: var(--lime);
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-contact .place__list > div {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

  .page-contact .pace-item {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
    padding: 20px 24px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.9fr);
    align-items: center;
  }

  .page-contact .channel {
    grid-template-columns: 72px minmax(0, 1fr);
  }

  .page-contact .channel__index {
    padding: 26px 0;
  }

  .page-contact .channel__body {
    grid-template-columns: minmax(0, 1fr) minmax(250px, 0.82fr);
    grid-template-areas:
      "title value"
      "desc  value"
      "usage usage";
    column-gap: clamp(20px, 3vw, 36px);
    row-gap: 12px;
    align-items: start;
    padding: 26px clamp(20px, 3vw, 34px);
  }

  .page-contact .channel__title {
    grid-area: title;
  }

  .page-contact .channel__desc {
    grid-area: desc;
  }

  .page-contact .channel__value {
    grid-area: value;
  }

  .page-contact .channel__usage {
    grid-area: usage;
    margin-top: 6px;
  }

  .page-contact .place {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-hero__title {
    font-size: 54px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .channel::before,
  .page-contact .route-card,
  .page-contact .route-card::after {
    transition: none;
  }

  .page-contact .channel:hover,
  .page-contact .channel:focus-within,
  .page-contact .route-card:hover,
  .page-contact .route-card:focus-visible {
    transform: none;
  }
}