.page-contact {
  padding-block: clamp(18px, 3vw, 30px) clamp(56px, 8vw, 108px);
}

.page-contact .crumb {
  margin-bottom: clamp(24px, 4vw, 46px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: 16px;
  max-width: 980px;
  margin-bottom: clamp(36px, 5.5vw, 68px);
}

.page-contact .contact-hero h1 {
  margin: 0;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.14;
  letter-spacing: -0.025em;
  font-weight: 900;
  max-width: 16em;
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 36em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
  color: var(--text-soft);
}

.page-contact .hero-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
  margin-top: 10px;
  padding-top: 20px;
  border-top: var(--hair);
}

.page-contact .fact {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.page-contact .fact__num {
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.4vw, 23px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--fluoro);
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.page-contact .fact__label {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-muted);
}

@media (min-width: 760px) {
  .page-contact .hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 章节头 ---------- */
.page-contact .section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 20px;
}

.page-contact .sec-num {
  font-family: var(--font-mono);
  font-size: clamp(32px, 4.6vw, 54px);
  line-height: 1;
  letter-spacing: -0.06em;
  color: var(--grid-mint);
  font-variant-numeric: tabular-nums;
  flex: none;
}

.page-contact .sec-num--ink {
  color: rgba(11, 31, 26, 0.22);
}

.page-contact .section-title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 25px);
  line-height: 1.42;
  letter-spacing: -0.01em;
  font-weight: 800;
}

.page-contact .section-title--ink {
  color: var(--ink-on-light);
}

/* ---------- 两栏主体 ---------- */
.page-contact .contact-split {
  display: grid;
  gap: clamp(34px, 5vw, 66px);
  align-items: start;
}

@media (min-width: 960px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }
}

.page-contact .media-frame {
  margin: 0 0 24px;
}

/* ---------- 联络卡片 ---------- */
.page-contact .line-cards {
  position: relative;
}

.page-contact .line-card {
  position: relative;
  background: var(--pitch-green);
  border: 1px solid var(--grid-mint);
  border-radius: var(--r-xl);
  padding: clamp(20px, 2.6vw, 26px);
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.page-contact .line-card + .line-card {
  margin-top: -12px;
}

.page-contact .line-card:nth-child(2) {
  margin-left: 14px;
}

.page-contact .line-card:nth-child(3) {
  margin-left: 28px;
}

.page-contact .line-card:hover,
.page-contact .line-card:focus-within {
  z-index: 3;
  border-color: var(--fluoro);
  transform: translateY(-3px);
  box-shadow: var(--shadow-float);
}

.page-contact .line-card__key {
  margin: 0 0 9px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--text-muted);
}

.page-contact .line-card__val {
  margin: 0 0 11px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.9vw, 18px);
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--fluoro);
  word-break: break-word;
}

.page-contact .line-card__desc {
  margin: 0 0 15px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-contact .copy-chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 6px 15px;
  border-radius: var(--r-pill);
  border: 1px solid var(--grid-mint);
  background: rgba(53, 240, 192, 0.08);
  color: var(--fluoro);
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease;
}

.page-contact .copy-chip:hover {
  background: rgba(53, 240, 192, 0.2);
  border-color: var(--fluoro);
}

/* ---------- 订阅流程 ---------- */
.page-contact .steps {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 4px 0 0;
}

.page-contact .steps::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 22px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--grid-mint), rgba(30, 74, 60, 0.12));
}

.page-contact .step {
  position: relative;
  padding-left: 58px;
}

.page-contact .step + .step {
  margin-top: 16px;
}

.page-contact .step__head {
  display: flex;
  align-items: center;
  gap: 10px;
  list-style: none;
  cursor: pointer;
  padding: 8px 0;
  font-size: 16.5px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

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

.page-contact .step__head::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--text-muted);
}

.page-contact .step details[open] > .step__head::after {
  content: "−";
  color: var(--fluoro);
}

.page-contact .step__num {
  position: absolute;
  left: 0;
  top: 4px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--grid-mint);
  background: var(--ink-deep);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fluoro);
  font-variant-numeric: tabular-nums;
  z-index: 1;
}

.page-contact .step__body p {
  margin: 2px 0 0;
  padding-right: 12px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--text-soft);
}

.page-contact .subscribe-note {
  margin: 22px 0 0;
  padding-left: 58px;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--text-muted);
}

.page-contact .subscribe-note a,
.page-contact .prose a {
  color: var(--fluoro);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 浅色横带：反馈模板 ---------- */
.page-contact .feedback-band {
  margin-block: clamp(46px, 7vw, 92px);
  padding-block: clamp(40px, 6vw, 74px);
  background: var(--paper);
  color: var(--ink-on-light);
}

.page-contact .feedback-grid {
  display: grid;
  gap: clamp(26px, 4vw, 34px);
  align-items: start;
}

@media (min-width: 900px) {
  .page-contact .feedback-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(36px, 5vw, 60px);
  }
}

.page-contact .feedback-lead {
  margin: 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.9;
  color: rgba(11, 31, 26, 0.82);
}

.page-contact .checklist {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .checklist li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(11, 31, 26, 0.88);
}

.page-contact .checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--fluoro);
  box-shadow: 0 0 0 3px rgba(53, 240, 192, 0.3);
}

.page-contact .template {
  background: var(--ink-deep);
  border: 1px solid var(--grid-mint);
  border-radius: var(--r-xl);
  padding: clamp(20px, 2.8vw, 30px);
  color: var(--text);
}

.page-contact .template__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-contact .template__body {
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 2.1;
  color: var(--text-soft);
  white-space: pre-wrap;
  overflow-x: auto;
  font-variant-numeric: tabular-nums;
}

.page-contact .template__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 问题分流 ---------- */
.page-contact .triage {
  margin-bottom: clamp(46px, 7vw, 88px);
}

.page-contact .triage-grid {
  gap: clamp(14px, 2vw, 22px);
}

.page-contact .triage-card {
  background: var(--pitch-green);
  border: 1px solid var(--grid-mint);
  border-top: 3px solid var(--hover-cyan);
  border-radius: var(--r-lg);
  padding: clamp(19px, 2.4vw, 26px);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.page-contact .triage-card:hover {
  transform: translateY(-3px);
  border-color: var(--fluoro);
  box-shadow: var(--shadow-float);
}

.page-contact .triage-card__tag {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-contact .triage-card__title {
  margin: 0 0 10px;
  font-size: 17px;
  line-height: 1.5;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-contact .triage-card__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-soft);
}

/* ---------- 服务范围 ---------- */
.page-contact .coverage-grid {
  gap: clamp(24px, 4vw, 50px);
  align-items: start;
}

.page-contact .coverage-text p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.95;
  color: var(--text-soft);
}

.page-contact .coverage-text p:last-child {
  margin-bottom: 0;
}

.page-contact .coverage-card {
  background: rgba(18, 58, 46, 0.55);
  border: 1px solid var(--grid-mint);
  border-radius: var(--r-xl);
  padding: clamp(20px, 2.8vw, 28px);
}

.page-contact .coverage-card__label {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--text-muted);
}

.page-contact .coverage-list {
  margin: 0;
  display: grid;
  gap: 13px;
}

.page-contact .coverage-list > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(30, 74, 60, 0.9);
}

.page-contact .coverage-list > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .coverage-list dt {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-muted);
  flex: none;
}

.page-contact .coverage-list dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--fluoro);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ---------- 底部动作 ---------- */
.page-contact .contact-cta {
  margin-top: clamp(40px, 6vw, 74px);
  padding: clamp(24px, 3.4vw, 40px);
  border: 1px solid var(--grid-mint);
  border-radius: var(--r-xl);
  background:
    radial-gradient(130% 170% at 100% 0%, rgba(53, 240, 192, 0.16), transparent 62%),
    var(--pitch-green);
  display: grid;
  gap: 18px;
  align-items: center;
}

@media (min-width: 820px) {
  .page-contact .contact-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 28px;
  }
}

.page-contact .contact-cta__text {
  margin: 0;
  max-width: 32em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-contact .contact-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 窄屏收口 ---------- */
@media (max-width: 640px) {
  .page-contact .line-card + .line-card {
    margin-top: 14px;
  }

  .page-contact .line-card:nth-child(2),
  .page-contact .line-card:nth-child(3) {
    margin-left: 0;
  }

  .page-contact .step {
    padding-left: 50px;
  }

  .page-contact .steps::before {
    left: 16px;
  }

  .page-contact .step__num {
    width: 32px;
    height: 32px;
    font-size: 12px;
    top: 8px;
  }

  .page-contact .subscribe-note {
    padding-left: 0;
  }

  .page-contact .section-head {
    gap: 10px;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .line-card,
  .page-contact .triage-card,
  .page-contact .copy-chip {
    transition: none;
  }
}