.page-contact {
  --pc-line: 1px solid var(--surf);
  --pc-gap: clamp(20px, 3vw, 40px);
}

.page-contact .contact-crumb {
  padding-top: clamp(16px, 3vw, 30px);
}

/* 首屏 */
.page-contact .contact-hero-inner {
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
  padding: clamp(26px, 5vw, 58px) 0 clamp(24px, 3.6vw, 44px);
}

.page-contact .contact-kicker {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 0;
  font-family: var(--font-index);
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .contact-kicker::after {
  content: "";
  flex: 0 1 240px;
  height: 1px;
  background: var(--surf);
}

.page-contact .contact-title {
  margin: 0;
  max-width: 17ch;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.15rem, 6.3vw, 4rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-lede {
  margin: 0;
  max-width: 52ch;
  padding-left: clamp(14px, 2vw, 22px);
  border-left: 2px solid var(--gold);
  color: var(--mist);
  font-size: clamp(1rem, 1.2vw, 1.0625rem);
  line-height: 1.9;
}

.page-contact .contact-banner {
  margin: 0;
  border-top: var(--pc-line);
  border-bottom: var(--pc-line);
  background: var(--trench);
}

.page-contact .contact-banner img {
  display: block;
  width: 100%;
  height: clamp(150px, 22vw, 280px);
  object-fit: cover;
  object-position: center 62%;
}

/* 章节骨架 */
.page-contact .contact-block {
  padding: clamp(40px, 6vw, 76px) 0;
}

.page-contact .contact-block + .contact-block {
  border-top: var(--pc-line);
}

.page-contact .block-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(24px, 3.6vw, 42px);
}

.page-contact .block-index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-contact .block-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.2vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .block-note {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--mist);
}

/* 三项渠道 */
.page-contact .channel-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--surf);
  border: 1px solid var(--surf);
  border-top: 2px solid var(--gold);
}

.page-contact .channel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 220px;
  padding: clamp(22px, 2.6vw, 34px);
  background: var(--deep);
  transition: background-color var(--t-base) ease;
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  background: var(--trench);
}

.page-contact .channel-key {
  margin: 0;
  font-family: var(--font-index);
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .channel-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 1.45vw, 1.15rem);
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .channel-scope {
  margin: 0;
  margin-top: auto;
  padding-top: 14px;
  border-top: var(--pc-line);
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 1.85;
}

/* 更正流程 */
.page-contact .aside-grid {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .aside-main p {
  margin: 0 0 18px;
  color: var(--paper);
  font-size: 1.0625rem;
  line-height: 1.9;
}

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

.page-contact .aside-main a,
.page-contact .coop-tail a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 166, 75, 0.45);
  transition: color var(--t-fast) ease, border-color var(--t-fast) ease;
}

.page-contact .aside-main a:hover,
.page-contact .coop-tail a:hover {
  color: var(--gold-hi);
  border-bottom-color: var(--gold-hi);
}

.page-contact .check-list {
  list-style: none;
  counter-reset: pc-step;
  margin: 0 0 22px;
  padding: 0;
  border-top: var(--pc-line);
}

.page-contact .check-list li {
  counter-increment: pc-step;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 15px 0;
  border-bottom: var(--pc-line);
  color: var(--paper);
  font-size: 1.0625rem;
  line-height: 1.75;
}

.page-contact .check-list li::before {
  content: counter(pc-step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  line-height: 1.95;
  color: var(--cinnabar);
}

.page-contact .aside-figure {
  margin: 0;
}

.page-contact .aside-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: var(--pc-line);
  object-fit: cover;
}

.page-contact .aside-figure figcaption {
  margin-top: 12px;
  padding-left: 12px;
  border-left: 1px solid var(--cinnabar);
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 1.7;
  color: var(--mist);
}

/* 合作与转载 */
.page-contact .coop-grid {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .coop-card {
  padding-top: 20px;
  border-top: 2px solid var(--cinnabar);
}

.page-contact .coop-card h3 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.25rem;
  line-height: 1.35;
  color: var(--paper);
}

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

.page-contact .coop-list li {
  position: relative;
  padding-left: 20px;
  color: var(--mist);
  font-size: 0.98rem;
  line-height: 1.85;
}

.page-contact .coop-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.82em;
  width: 9px;
  height: 1px;
  background: var(--gold);
}

.page-contact .coop-tail {
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  max-width: 62ch;
  color: var(--mist);
  font-size: 0.98rem;
  line-height: 1.9;
}

/* 回复时段 */
.page-contact .contact-window {
  background-image: radial-gradient(
    circle,
    transparent 0 6px,
    rgba(22, 57, 79, 0.6) 6px 7px,
    transparent 7px
  );
  background-size: 46px 46px;
  background-position: right -14px top 10px;
}

.page-contact .window-panel {
  padding-left: clamp(18px, 2.6vw, 30px);
  border-left: 3px solid var(--gold);
}

.page-contact .window-label {
  margin: 0;
  font-family: var(--font-index);
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .window-hours {
  margin: 8px 0 2px;
  font-family: var(--font-mono);
  font-size: clamp(1.65rem, 5vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: 0.01em;
  color: var(--gold);
}

.page-contact .window-tz {
  margin: 0 0 18px;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--jade);
}

.page-contact .window-text {
  margin: 0;
  max-width: 58ch;
  color: var(--mist);
  font-size: 1rem;
  line-height: 1.9;
}

.page-contact .preflight {
  margin-top: clamp(28px, 4vw, 44px);
  padding: clamp(20px, 3vw, 30px);
  border: var(--pc-line);
  background: var(--trench);
}

.page-contact .preflight-title {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--paper);
}

.page-contact .preflight-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.page-contact .preflight-links a {
  color: var(--gold);
  font-size: 0.95rem;
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(217, 166, 75, 0.4);
  transition: color var(--t-fast) ease, border-color var(--t-fast) ease;
}

.page-contact .preflight-links a:hover {
  color: var(--gold-hi);
  border-bottom-color: var(--gold-hi);
}

.page-contact .preflight-note {
  margin: 16px 0 0;
  color: var(--mist);
  font-size: 0.9rem;
  line-height: 1.85;
}

/* 响应式 */
@media (min-width: 720px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-contact .contact-hero-inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.95fr);
    align-items: end;
    column-gap: clamp(32px, 5vw, 80px);
  }

  .page-contact .contact-title {
    grid-column: 1;
    grid-row: 2;
  }

  .page-contact .contact-kicker {
    grid-column: 1;
    grid-row: 1;
  }

  .page-contact .contact-lede {
    grid-column: 2;
    grid-row: 2;
  }

  .page-contact .block-head {
    grid-template-columns: 64px minmax(0, 1fr) minmax(0, 300px);
    align-items: baseline;
    gap: 0 28px;
  }

  .page-contact .block-index {
    grid-column: 1;
  }

  .page-contact .block-title {
    grid-column: 2;
  }

  .page-contact .block-note {
    grid-column: 3;
  }

  .page-contact .aside-grid {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 330px);
    align-items: start;
    gap: clamp(28px, 4vw, 56px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .aside-main a,
  .page-contact .coop-tail a,
  .page-contact .preflight-links a {
    transition: none;
  }
}