.page-contact {
  --pc-edge: rgba(154, 170, 185, .22);
  --pc-ink-soft: #3B4553;
  --pc-ink-line: rgba(18, 24, 31, .14);
}

/* ============ 首屏 ============ */
.page-contact .contact-lead {
  padding-top: 4px;
}

.page-contact .contact-lead__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  align-items: center;
}

.page-contact .contact-lead__copy h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 7.6vw, 52px);
  line-height: 1.08;
  letter-spacing: .02em;
  color: var(--offwhite-050);
  margin: 14px 0 18px;
}

.page-contact .contact-lead__intro {
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--grayblue-400);
  max-width: 48ch;
}

.page-contact .contact-lead__meta {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid var(--pc-edge);
  font-size: 13.5px;
  letter-spacing: .04em;
  color: var(--grayblue-400);
}

.page-contact .contact-lead__meta .num {
  color: var(--amber-400);
}

.page-contact .contact-lead__fig {
  width: 100%;
}

/* ============ 区块标题 ============ */
.page-contact .contact-head {
  max-width: 62ch;
}

.page-contact .contact-head h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 5.4vw, 36px);
  line-height: 1.16;
  letter-spacing: .02em;
  color: var(--offwhite-050);
  margin: 12px 0 14px;
}

.page-contact .contact-head__lead {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--grayblue-400);
}

/* ============ 通道 ============ */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 30px;
}

.page-contact .channel-card {
  position: relative;
  overflow: hidden;
  background: var(--ink-700);
  border-radius: var(--radius-lg);
  border-left: 3px solid var(--cyan-400);
  padding: 24px 22px 24px 22px;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 140px;
  background: linear-gradient(90deg, rgba(47, 227, 208, .12), transparent);
  pointer-events: none;
}

.page-contact .channel-card--phone {
  border-left-color: var(--amber-400);
}

.page-contact .channel-card--phone::after {
  background: linear-gradient(90deg, rgba(242, 178, 62, .12), transparent);
}

.page-contact .channel-card:hover {
  transform: translateY(-3px);
}

.page-contact .channel-card h3 {
  position: relative;
  font-family: var(--font-display);
  font-size: 21px;
  letter-spacing: .06em;
  color: var(--offwhite-050);
  margin-bottom: 12px;
}

.page-contact .channel-card__value {
  position: relative;
  display: block;
  font-size: clamp(17px, 4.6vw, 25px);
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--cyan-400);
  overflow-wrap: anywhere;
  margin-bottom: 16px;
}

.page-contact .channel-card--phone .channel-card__value {
  color: var(--amber-400);
  font-size: clamp(22px, 5.4vw, 30px);
}

.page-contact .channel-card__desc {
  position: relative;
  font-size: 15px;
  line-height: 1.76;
  color: var(--grayblue-400);
  margin-bottom: 16px;
}

.page-contact .channel-card__list {
  position: relative;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-contact .channel-card__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--offwhite-050);
}

.page-contact .channel-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 9px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan-400);
}

.page-contact .channel-card--phone .channel-card__list li::before {
  background: var(--amber-400);
}

.page-contact .scope-note {
  margin-top: 22px;
  display: grid;
  gap: 12px;
  padding: 20px 22px;
  border: 1px solid var(--pc-edge);
  border-radius: var(--radius-md);
  background: rgba(19, 38, 57, .55);
}

.page-contact .scope-note p {
  font-size: 15px;
  line-height: 1.76;
  color: var(--grayblue-400);
}

.page-contact .scope-note strong {
  color: var(--offwhite-050);
  font-weight: 600;
}

/* ============ 值班时段（奶油浅底） ============ */
.page-contact .contact-hours__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  align-items: center;
}

.page-contact .contact-hours__fig {
  width: 100%;
}

.page-contact .contact-hours__copy h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 5.4vw, 34px);
  line-height: 1.18;
  letter-spacing: .02em;
  color: var(--inktext-900);
  margin: 12px 0 14px;
}

.page-contact .contact-hours__text {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--pc-ink-soft);
}

.page-contact .hours-track {
  margin: 26px 0 4px;
}

.page-contact .hours-track svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .hours-track .track-base {
  fill: var(--cream-300);
}

.page-contact .hours-track .track-live {
  fill: var(--amber-400);
}

.page-contact .hours-track .track-label {
  fill: var(--inktext-900);
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .06em;
}

.page-contact .hours-readout {
  margin-top: 18px;
  border-top: 1px solid var(--pc-ink-line);
}

.page-contact .hours-readout p {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--pc-ink-line);
}

.page-contact .hours-readout__key {
  font-size: 14px;
  letter-spacing: .03em;
  color: var(--pc-ink-soft);
}

.page-contact .hours-readout__val {
  font-size: 15px;
  font-weight: 600;
  color: var(--inktext-900);
  text-align: right;
}

/* ============ 来信准备 ============ */
.page-contact .prep-list {
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 28px;
}

.page-contact .prep-list__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  background: var(--ink-700);
  border-radius: var(--radius-md);
  padding: 20px 20px 20px 20px;
}

.page-contact .prep-list__idx {
  font-size: 19px;
  font-weight: 600;
  letter-spacing: .06em;
  line-height: 1.25;
  color: var(--amber-400);
}

.page-contact .prep-list__item h3 {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: .04em;
  color: var(--offwhite-050);
  margin-bottom: 8px;
}

.page-contact .prep-list__item p {
  font-size: 14.8px;
  line-height: 1.76;
  color: var(--grayblue-400);
}

/* ============ 地址与备案 ============ */
.page-contact .address-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-top: 28px;
}

.page-contact .address-card {
  border-top: 2px solid var(--cyan-400);
  padding-top: 18px;
}

.page-contact .address-card--icp {
  border-top-color: var(--graypurple-500);
}

.page-contact .address-card h3 {
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: .08em;
  color: var(--grayblue-400);
  margin-bottom: 10px;
}

.page-contact .address-card__line {
  font-size: clamp(16px, 4.2vw, 21px);
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--offwhite-050);
  overflow-wrap: anywhere;
  margin-bottom: 12px;
}

.page-contact .address-card__text {
  font-size: 15px;
  line-height: 1.78;
  color: var(--grayblue-400);
  max-width: 44ch;
}

.page-contact .contact-next {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--pc-edge);
  font-size: 14.5px;
}

.page-contact .contact-next a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 208, .35);
  padding-bottom: 2px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .contact-next a:hover {
  color: var(--offwhite-050);
  border-bottom-color: var(--offwhite-050);
}

/* ============ 响应式 ============ */
@media (min-width: 700px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .address-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-lead__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 56px;
  }

  .page-contact .contact-hours__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: 52px;
  }

  .page-contact .contact-head {
    max-width: 58ch;
  }

  .page-contact .prep-list {
    gap: 18px;
  }
}

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

  .page-contact .channel-card:hover {
    transform: none;
  }
}