.page-contact {
  --contact-gap: 24px;
  --contact-panel: linear-gradient(158deg, var(--card) 0%, var(--panel) 100%);
  display: block;
}

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 18px 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
}

.page-contact .breadcrumbs a:hover,
.page-contact .breadcrumbs a:focus-visible {
  color: var(--cyan);
}

.page-contact .breadcrumbs [aria-current="page"] {
  color: var(--text-soft);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: 8px 0 44px;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 26px;
}

.page-contact .contact-hero__copy .eyebrow {
  margin: 0 0 14px;
}

.page-contact h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(34px, 8.4vw, 62px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--text);
}

.page-contact .contact-hero .lead {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(15px, 3.6vw, 17px);
  line-height: 1.8;
  color: var(--text-soft);
}

.page-contact .contact-hero__direct {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.page-contact .direct {
  position: relative;
  padding: 15px 18px 15px 20px;
  border-left: 2px solid var(--cyan);
  background: var(--cyan-06);
}

.page-contact .direct__label {
  display: block;
  margin-bottom: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .direct__value {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(16px, 4.4vw, 25px);
  letter-spacing: -0.01em;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .direct__note {
  display: block;
  margin-top: 7px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

.page-contact .direct--accent {
  border-left-color: var(--orange);
  background: var(--orange-10);
}

.page-contact .direct--accent .direct__label {
  color: var(--orange-soft);
}

.page-contact .contact-hero__visual {
  position: relative;
  overflow: hidden;
  min-height: 190px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-contact .contact-hero__visual img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 190px;
  object-fit: cover;
  opacity: 0.7;
}

.page-contact .contact-hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(135deg, rgba(53, 242, 208, 0.07) 0 1px, transparent 1px 44px),
    linear-gradient(180deg, rgba(10, 14, 13, 0.12), rgba(10, 14, 13, 0.74));
  pointer-events: none;
}

/* ---------- 区块标题 ---------- */
.page-contact .block-head {
  margin-bottom: 20px;
}

.page-contact .block-head .eyebrow {
  margin: 0;
}

.page-contact .block-head h2 {
  margin: 9px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 5.4vw, 36px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--text);
}

/* ---------- 三条通道 + 咨询准备 ---------- */
.page-contact .channels {
  display: grid;
  gap: var(--contact-gap);
  padding: 12px 0 8px;
}

.page-contact .channel {
  position: relative;
  margin-bottom: 16px;
  padding: 22px 20px 20px;
  background: var(--contact-panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-contact .channel__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .channel__title {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-size: 23px;
  line-height: 1.2;
  color: var(--text);
}

.page-contact .channel__value {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(15px, 4vw, 21px);
  line-height: 1.45;
  color: var(--text);
  overflow-wrap: anywhere;
}

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

.page-contact .channel__body {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-contact .channel__fit {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .channel__fit strong {
  color: var(--cyan);
  font-weight: 500;
}

.page-contact .briefing {
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--orange);
  background: var(--card);
}

.page-contact .briefing .eyebrow {
  margin: 0 0 10px;
}

.page-contact .briefing h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(22px, 4.8vw, 28px);
  line-height: 1.2;
  color: var(--text);
}

.page-contact .briefing__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: brief;
  display: grid;
  gap: 15px;
}

.page-contact .briefing__item {
  position: relative;
  padding-left: 34px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-contact .briefing__item::before {
  counter-increment: brief;
  content: counter(brief, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
}

.page-contact .briefing__item b {
  display: block;
  margin-bottom: 2px;
  color: var(--text);
  font-weight: 600;
}

.page-contact .briefing__tip {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 合作方向 ---------- */
.page-contact .partners-wrap {
  padding: 42px 0 12px;
}

.page-contact .partners {
  display: grid;
  gap: 16px;
}

.page-contact .partner {
  position: relative;
  padding: 22px 20px 20px;
  background: var(--contact-panel);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
}

.page-contact .partner:nth-child(2) {
  border-top-color: var(--orange);
}

.page-contact .partner:nth-child(3) {
  border-top-color: var(--gold);
}

.page-contact .partner__title {
  margin: 10px 0 10px;
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.2;
  color: var(--text);
}

.page-contact .partner__body {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-contact .partner__extra {
  display: block;
  margin-bottom: 14px;
  padding-left: 12px;
  border-left: 1px solid var(--cyan-28);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .partner .link-arrow {
  display: inline-block;
  font-size: 13px;
  color: var(--cyan);
}

/* ---------- 回复流程 ---------- */
.page-contact .flow {
  display: grid;
  gap: 26px;
  padding: 42px 0 10px;
}

.page-contact .flow__media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-contact .flow__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.82;
}

.page-contact .flow__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .flow__step {
  position: relative;
  padding: 0 0 22px 24px;
  border-left: 1px solid var(--line);
}

.page-contact .flow__step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 6px;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-10);
}

.page-contact .flow__step h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.page-contact .flow__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-contact .flow__note {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 常见咨询分类 ---------- */
.page-contact .topics {
  padding: 42px 0 10px;
}

.page-contact .topics__grid {
  display: grid;
  gap: 10px;
}

.page-contact .topic {
  border: 1px solid var(--line);
  background: var(--card);
}

.page-contact .topic summary {
  position: relative;
  padding: 15px 46px 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
}

.page-contact .topic summary::-webkit-details-marker {
  display: none;
}

.page-contact .topic summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--cyan);
}

.page-contact .topic[open] summary::after {
  content: "\2013";
}

.page-contact .topic[open] summary {
  border-bottom: 1px solid var(--line-soft);
  color: var(--cyan);
}

.page-contact .topic p {
  margin: 0;
  padding: 14px 16px 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-contact .topic p a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 收尾 ---------- */
.page-contact .contact-cta {
  display: grid;
  gap: 18px;
  margin: 34px 0 56px;
  padding: 26px 22px;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(135deg, rgba(53, 242, 208, 0.05) 0 1px, transparent 1px 52px),
    linear-gradient(120deg, var(--panel), var(--card));
}

.page-contact .contact-cta h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(22px, 5vw, 30px);
  line-height: 1.2;
  color: var(--text);
}

.page-contact .contact-cta__text {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-contact .contact-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.page-contact .contact-cta__actions .link-arrow {
  font-size: 13px;
  color: var(--cyan);
}

/* ---------- 中等屏 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 30px 28px;
  }

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

  .page-contact .partners {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .topics__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 18px;
  }
}

@media (hover: hover) and (min-width: 720px) {
  .page-contact .partner__extra {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.32s var(--ease), opacity 0.32s var(--ease), margin-bottom 0.32s var(--ease);
    margin-bottom: 0;
  }

  .page-contact .partner:hover .partner__extra,
  .page-contact .partner:focus-within .partner__extra {
    max-height: 160px;
    opacity: 1;
    margin-bottom: 14px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-contact .contact-hero {
    padding: 22px 0 60px;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: 48px;
    align-items: stretch;
  }

  .page-contact .contact-hero__visual {
    min-height: 420px;
  }

  .page-contact .contact-hero__visual img {
    min-height: 420px;
    height: 100%;
  }

  .page-contact .channels {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 36px;
    align-items: start;
    padding: 18px 0 12px;
  }

  .page-contact .partners {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .partner {
    padding: 24px 22px 22px;
  }

  .page-contact .flow {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 42px;
    align-items: start;
    padding: 52px 0 14px;
  }

  .page-contact .partners-wrap,
  .page-contact .topics {
    padding-top: 52px;
  }

  .page-contact .contact-cta {
    margin: 44px 0 72px;
    padding: 34px 34px;
  }
}
</main>