/* ===== 联系我们 ===== */
.page-contact {
  background: var(--space);
  color: var(--text);
  overflow-x: hidden;
}

.page-contact .eyebrow {
  color: var(--cyan);
  letter-spacing: 0.24em;
}

.page-contact .section-title {
  color: var(--paper);
  font-family: var(--font-display);
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.page-contact .section-lead,
.page-contact .coverage-lead {
  color: var(--text-dim);
  max-width: 62ch;
  line-height: 1.75;
}

/* --- 首屏 --- */
.page-contact .contact-hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(30px, 8vw, 68px)) 0 clamp(40px, 8vw, 80px);
  background:
    radial-gradient(90% 72% at 86% 4%, rgba(0, 229, 208, 0.17), rgba(0, 229, 208, 0) 62%),
    linear-gradient(180deg, var(--night) 0%, var(--space) 100%);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px),
    linear-gradient(180deg, var(--line-soft) 1px, transparent 1px);
  background-size: 128px 128px;
  opacity: 0.55;
  pointer-events: none;
}

.page-contact .contact-hero-inner {
  position: relative;
  z-index: 1;
}

.page-contact .breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(22px, 4vw, 36px);
  padding: 0;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
}

.page-contact .breadcrumb li {
  color: var(--haze);
}

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

.page-contact .breadcrumb a:hover {
  color: var(--cyan);
}

.page-contact .contact-hero-grid {
  display: grid;
  gap: clamp(30px, 6vw, 56px);
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.3rem, 8vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 0 0 clamp(16px, 3vw, 24px);
}

.page-contact .contact-hero-text {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-dim);
  max-width: 52ch;
  margin: 0 0 clamp(22px, 4vw, 32px);
}

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

.page-contact .contact-hero-note {
  position: relative;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  background: rgba(3, 12, 24, 0.6);
  padding: 22px 24px;
  box-shadow: var(--shadow-card);
}

.page-contact .contact-hero-note .annotation--vertical {
  position: absolute;
  top: 18px;
  right: -10px;
  writing-mode: vertical-rl;
  font-family: var(--font-data);
  font-size: 0.64rem;
  letter-spacing: 0.24em;
  color: var(--cyan);
  opacity: 0.8;
}

.page-contact .hero-note-list {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-contact .hero-note-list div {
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line-soft);
}

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

.page-contact .hero-note-list dt {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--haze);
  margin-bottom: 6px;
}

.page-contact .hero-note-list dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

/* --- 联系渠道 --- */
.page-contact .channel-layout {
  display: grid;
  gap: 24px;
  margin-top: clamp(28px, 5vw, 44px);
}

.page-contact .channel-panel {
  border-top: 3px solid var(--cyan);
}

.page-contact .channel-body {
  display: grid;
  gap: 22px;
}

.page-contact .channel-item {
  border-left: 3px solid var(--haze);
  padding-left: 16px;
}

.page-contact .channel-item--mail {
  border-left-color: var(--cyan);
}

.page-contact .channel-item--phone {
  border-left-color: var(--amber);
}

.page-contact .channel-item--addr {
  border-left-color: var(--indigo);
}

.page-contact .channel-label {
  margin: 0 0 6px;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--haze);
}

.page-contact .channel-value {
  margin: 0 0 8px;
  font-family: var(--font-data);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.55;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .channel-item--mail .channel-value,
.page-contact .channel-item--phone .channel-value {
  color: var(--cyan);
}

.page-contact .channel-desc {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-dim);
}

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

/* --- 问题分流 --- */
.page-contact .route-grid {
  list-style: none;
  margin: clamp(28px, 5vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-contact .route-card {
  --tier-color: var(--cyan);
  position: relative;
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, rgba(6, 20, 38, 0.92), rgba(11, 31, 58, 0.92));
  border: 1px solid var(--line);
  border-top: 4px solid var(--tier-color);
  padding: 24px 20px 22px;
  box-shadow: var(--shadow-card);
}

.page-contact .route-card--amber {
  --tier-color: var(--amber);
}

.page-contact .route-card--lime {
  --tier-color: var(--lime);
}

.page-contact .route-card--rose {
  --tier-color: var(--rose);
}

.page-contact .route-card--cyan {
  --tier-color: var(--cyan);
}

.page-contact .route-index {
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  color: var(--tier-color);
}

.page-contact .route-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .route-text {
  margin: 0 0 16px;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-contact .route-channel {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--tier-color);
}

/* --- 费用与账单 --- */
.page-contact .billing-card {
  color: var(--black);
  border-top: 4px solid var(--amber);
}

.page-contact .billing-card .eyebrow {
  color: var(--wine);
  letter-spacing: 0.24em;
}

.page-contact .billing-card .section-title {
  color: var(--black);
  margin-bottom: 14px;
}

.page-contact .billing-lead {
  margin: 0 0 24px;
  font-size: 0.98rem;
  line-height: 1.75;
}

.page-contact .billing-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
  border-top: 1px solid rgba(10, 12, 16, 0.18);
  padding-top: 22px;
}

.page-contact .billing-steps li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-contact .step-num {
  font-family: var(--font-data);
  font-size: 1rem;
  color: var(--wine);
  border-bottom: 2px solid var(--wine);
  padding-bottom: 2px;
}

.page-contact .step-text {
  font-size: 0.96rem;
  line-height: 1.7;
}

.page-contact .billing-tail {
  margin: 24px 0 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(10, 12, 16, 0.72);
}

.page-contact .billing-tail a {
  color: var(--wine);
}

.page-contact .billing-actions {
  margin: 20px 0 0;
}

/* --- 合作对接 --- */
.page-contact .partner-layout {
  display: grid;
  gap: 24px;
  margin-top: clamp(28px, 5vw, 44px);
}

.page-contact .partner-card {
  color: var(--black);
  border-left: 4px solid var(--rose);
}

.page-contact .partner-card-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--black);
}

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

.page-contact .partner-list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.94rem;
  line-height: 1.7;
}

.page-contact .partner-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  background: var(--wine);
}

.page-contact .partner-side {
  border: 1px solid var(--line);
  background: rgba(59, 42, 107, 0.24);
  padding: 24px 22px;
  box-shadow: var(--shadow-card);
}

.page-contact .partner-side-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .partner-side-text {
  margin: 0 0 16px;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .partner-side-text:last-child {
  margin-bottom: 0;
}

.page-contact .partner-side-text a {
  color: var(--turq);
}

.page-contact .partner-mail {
  font-family: var(--font-data);
  color: var(--cyan);
  overflow-wrap: anywhere;
}

/* --- 服务范围 --- */
.page-contact .coverage-layout {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  align-items: start;
}

.page-contact .coverage-facts {
  margin: clamp(24px, 4vw, 34px) 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-contact .coverage-fact {
  display: grid;
  grid-template-columns: minmax(88px, 120px) minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .coverage-fact dt {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--haze);
  padding-top: 3px;
}

.page-contact .coverage-fact dd {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.65;
  color: var(--paper);
}

.page-contact .coverage-tail {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .coverage-tail a {
  color: var(--cyan);
}

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

/* --- 响应式 --- */
@media (min-width: 720px) {
  .page-contact .contact-hero-text {
    font-size: 1.05rem;
  }

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

  .page-contact .partner-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.85fr);
    align-items: end;
  }

  .page-contact .channel-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-contact .coverage-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  }
}

@media (min-width: 1180px) {
  .page-contact .route-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .route-card {
    padding: 26px 22px 24px;
  }
}

@media (max-width: 520px) {
  .page-contact .contact-hero-note .annotation--vertical {
    display: none;
  }

  .page-contact .coverage-fact {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .page-contact .billing-steps li {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 10px;
  }
}