.page-contact {
  position: relative;
  isolation: isolate;
}

.page-contact::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg, rgba(242, 238, 227, 0.022) 0 1px, transparent 1px 4px),
    repeating-linear-gradient(90deg, rgba(124, 154, 143, 0.055) 0 1px, transparent 1px 72px);
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  padding: clamp(26px, 6vw, 48px) 0 clamp(36px, 7vw, 76px);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero__copy {
  min-width: 0;
}

.page-contact .contact-hero__title {
  margin: 12px 0 0;
  max-width: 20ch;
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--c-paper);
}

.page-contact .contact-hero__lede {
  margin: 20px 0 0;
  max-width: 48ch;
  font-size: clamp(1rem, 2.4vw, 1.125rem);
  line-height: 1.78;
  color: var(--c-mist);
}

.page-contact .contact-hero__status {
  margin-top: 24px;
}

.page-contact .contact-hero__media {
  margin: 0;
  align-self: end;
  border: 1px solid var(--line-strong);
}

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

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

/* ---------- 区块通用 ---------- */
.page-contact .section-head {
  max-width: 52ch;
}

.page-contact .section-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.65rem, 5.4vw, 2.7rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--c-paper);
}

.page-contact .section-lede {
  margin: 14px 0 0;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--c-rock);
}

/* ---------- 三条渠道 ---------- */
.page-contact .channel-grid {
  list-style: none;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .channel {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 3.4vw, 32px);
  background: var(--c-panel);
}

.page-contact .channel__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-rock);
}

.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 3.8vw, 1.28rem);
  line-height: 1.4;
  letter-spacing: 0.01em;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel--mail .channel__value {
  color: var(--c-cyan);
}

.page-contact .channel--phone .channel__value {
  font-size: clamp(1.4rem, 6vw, 1.85rem);
  letter-spacing: 0.04em;
  color: var(--c-amber);
}

.page-contact .channel__address {
  font-style: normal;
  display: grid;
  gap: 0;
}

.page-contact .channel__address span {
  padding: 6px 0;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--c-paper);
  border-bottom: 1px dotted var(--line-strong);
}

.page-contact .channel__address span:last-child {
  border-bottom: 0;
}

.page-contact .channel__note {
  margin: auto 0 0;
  padding-top: 4px;
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--c-rock);
}

/* ---------- 咨询前准备 ---------- */
.page-contact .contact-prep__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}

.page-contact .contact-prep__text {
  min-width: 0;
}

.page-contact .contact-prep__media {
  margin: 0;
  border: 1px solid var(--line-strong);
}

.page-contact .prep-list {
  counter-reset: prep;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .prep-list > li {
  position: relative;
  padding: 18px 0 18px 3rem;
  border-top: 1px solid var(--line);
}

.page-contact .prep-list > li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .prep-list > li::before {
  counter-increment: prep;
  content: counter(prep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 20px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
}

.page-contact .prep-list h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-paper);
}

.page-contact .prep-list p {
  margin: 6px 0 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--c-rock);
}

/* ---------- 回复时间 ---------- */
.page-contact .contact-hours__paper {
  max-width: 64rem;
  padding: clamp(24px, 4.5vw, 48px);
  color: var(--c-print);
}

.page-contact .contact-hours__eyebrow {
  color: rgba(5, 10, 8, 0.55);
}

.page-contact .contact-hours__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 5vw, 2.4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--c-print);
}

.page-contact .contact-hours__clock {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 11vw, 4.6rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--c-print);
}

.page-contact .hours-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  max-width: 60ch;
}

.page-contact .hours-list li {
  position: relative;
  padding-left: 1.2rem;
  font-size: 0.94rem;
  line-height: 1.75;
  color: rgba(5, 10, 8, 0.82);
}

.page-contact .hours-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--c-clay);
}

/* ---------- 常见问题分流 ---------- */
.page-contact .triage-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .triage-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 4px 14px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: background-color 180ms ease, padding-left 180ms ease;
}

.page-contact .triage-link:hover,
.page-contact .triage-link:focus-visible {
  padding-left: 8px;
  background: rgba(47, 240, 206, 0.05);
}

.page-contact .triage-link__no {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  line-height: 1.9;
  color: var(--c-rock);
}

.page-contact .triage-link__body {
  min-width: 0;
  display: block;
}

.page-contact .triage-link__title {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-paper);
}

.page-contact .triage-link__desc {
  display: block;
  margin-top: 6px;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--c-rock);
}

.page-contact .triage-link__go {
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--c-cyan);
}

/* ---------- 邮件主题 ---------- */
.page-contact .contact-mail__filter {
  margin-top: 22px;
}

.page-contact .mail-rows {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .mail-row {
  padding: 18px 20px;
  background: var(--c-panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--c-rock);
}

.page-contact .mail-row--correction {
  border-left-color: var(--c-cyan);
}

.page-contact .mail-row--suggestion {
  border-left-color: var(--c-amber);
}

.page-contact .mail-row--business {
  border-left-color: var(--c-mist);
}

.page-contact .mail-row__type {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-rock);
}

.page-contact .mail-row__title {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--c-paper);
  overflow-wrap: anywhere;
}

.page-contact .mail-row__note {
  margin: 8px 0 0;
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--c-rock);
}

/* ---------- 结尾动作 ---------- */
.page-contact .contact-cta {
  display: grid;
  gap: 20px;
  padding: clamp(40px, 7vw, 80px) 0 clamp(48px, 8vw, 96px);
  border-top: 1px solid var(--line);
}

.page-contact .contact-cta__line {
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 5.6vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--c-paper);
}

.page-contact .contact-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 800px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-prep__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  }

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

  .page-contact .mail-row:first-child {
    grid-column: span 2;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-contact .contact-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-contact .contact-cta__actions {
    justify-content: flex-end;
  }
}

@media (max-width: 420px) {
  .page-contact .channel__value {
    font-size: 0.95rem;
  }

  .page-contact .contact-hours__clock {
    font-size: 2.1rem;
  }

  .page-contact .contact-cta__actions .btn {
    width: 100%;
    text-align: center;
  }
}

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