.page-contact {
  --contact-pad: clamp(20px, 3vw, 36px);
  --contact-gap: clamp(28px, 5vw, 64px);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding: clamp(24px, 4vw, 44px) 0 clamp(44px, 6vw, 78px);
  background-image: radial-gradient(120% 90% at 88% 0%, rgba(56, 242, 210, 0.07) 0%, rgba(5, 25, 42, 0) 58%);
}

.page-contact .contact-hero__title {
  margin: 10px 0 0;
  line-height: 1.02;
}

.page-contact .contact-hero__lede {
  max-width: 64ch;
  margin: 22px 0 0;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--c-muted);
}

.page-contact .channels-title {
  margin: clamp(40px, 6vw, 76px) 0 0;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-line);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
}

/* ---------- 三块联系方式 ---------- */

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

.page-contact .channel {
  padding: var(--contact-pad) 0;
  border-bottom: 1px solid var(--c-line);
}

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

.page-contact .channel__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-cyan-dim);
}

.page-contact .channel--entry .channel__label {
  color: var(--c-orange);
}

.page-contact .channel__value {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.2vw, 21px);
  line-height: 1.35;
  color: var(--c-text);
  overflow-wrap: anywhere;
}

.page-contact .channel__value--lg {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.6vw, 30px);
  letter-spacing: 0.02em;
  color: var(--c-orange-soft);
}

.page-contact .channel__note {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
}

@media (min-width: 880px) {
  .page-contact .contact-channels {
    grid-template-columns: 1.4fr 1fr 1fr;
  }

  .page-contact .channel {
    padding: var(--contact-pad);
    border-bottom: 0;
    border-left: 1px solid var(--c-line);
  }

  .page-contact .channel:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-contact .channel:last-child {
    padding-right: 0;
  }
}

/* ---------- 通用区块节奏 ---------- */

.page-contact .contact-block {
  padding: clamp(48px, 7vw, 96px) 0;
  border-top: 1px solid var(--c-line);
}

.page-contact .contact-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--contact-gap);
  align-items: start;
}

.page-contact .contact-block__lede {
  max-width: 58ch;
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-muted);
}

@media (min-width: 900px) {
  .page-contact .contact-split--entry {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .contact-split--process {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(40px, 6vw, 84px);
  }
}

.page-contact .entry-media,
.page-contact .process-media {
  width: 100%;
}

/* ---------- 页脚反馈：折叠说明 ---------- */

.page-contact .entry-checklist {
  margin-top: clamp(24px, 3vw, 36px);
  border-top: 1px solid var(--c-line);
}

.page-contact .entry-checklist details {
  border-bottom: 1px solid var(--c-line);
}

.page-contact .entry-checklist summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 0.02em;
  color: var(--c-text);
}

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

.page-contact .entry-checklist summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--c-orange);
}

.page-contact .entry-checklist details[open] summary::after {
  content: "\2212";
}

.page-contact .entry-checklist__list {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.page-contact .entry-checklist__list li {
  position: relative;
  padding: 7px 0 7px 22px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-muted);
}

.page-contact .entry-checklist__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 17px;
  width: 10px;
  height: 1px;
  background: var(--c-cyan-dim);
}

.page-contact .entry-checklist__note {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-cyan-dim);
}

/* ---------- 处理流程步骤条 ---------- */

.page-contact .process-steps {
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .process-step {
  position: relative;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 18px;
  padding-bottom: 32px;
}

.page-contact .process-step:last-child {
  padding-bottom: 0;
}

.page-contact .process-step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 25px;
  top: 60px;
  bottom: 8px;
  width: 1px;
  background: var(--c-line);
}

.page-contact .process-step__num {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border: 1px solid var(--c-line);
  font-size: 15px;
  line-height: 1;
  color: var(--c-cyan);
}

.page-contact .process-step__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--c-text);
}

.page-contact .process-step__text {
  max-width: 54ch;
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ---------- 资料纠错 ---------- */

.page-contact .contact-fix__inner {
  max-width: 74ch;
}

.page-contact .contact-fix__lede {
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-contact .fix-list {
  counter-reset: fix;
  margin: clamp(24px, 3vw, 38px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--c-line);
}

.page-contact .fix-list li {
  counter-increment: fix;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--c-line);
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--c-text);
}

.page-contact .fix-list li::before {
  content: counter(fix, decimal-leading-zero);
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-cyan-dim);
}

.page-contact .contact-fix__note {
  margin: 24px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-muted);
}

/* ---------- 运营信息 ---------- */

.page-contact .legal-list {
  max-width: 74ch;
  margin: clamp(24px, 3vw, 38px) 0 0;
  padding: 0;
  border-top: 1px solid var(--c-line);
}

.page-contact .legal-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .legal-row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-muted);
}

.page-contact .legal-row dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--c-text);
  overflow-wrap: anywhere;
}

.page-contact .legal-row dd.mono {
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--c-cyan);
}

@media (min-width: 640px) {
  .page-contact .legal-row {
    grid-template-columns: 152px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

.page-contact .legal-note {
  max-width: 62ch;
  margin: 24px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-contact .contact-next {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(28px, 4vw, 44px);
}