.page-contact {
  --pc-page-pad: clamp(16px, 3vw, 32px);
  --pc-card-bg: linear-gradient(150deg, rgba(14, 35, 69, 0.92) 0%, rgba(11, 29, 58, 0.72) 100%);
}

.page-contact .section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin: 0 0 12px;
  line-height: 1;
}

.page-contact .section-eyebrow::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-accent);
  box-shadow: 0 0 12px rgba(57, 255, 20, 0.55);
  flex: 0 0 auto;
}

/* ===== Hero ===== */
.page-contact .contact-hero {
  position: relative;
  min-height: min(680px, 94vh);
  display: flex;
  align-items: flex-end;
  padding: calc(var(--pc-page-pad) * 2) 0 var(--pc-page-pad);
  color: var(--c-text);
  overflow: hidden;
  isolation: isolate;
  background: var(--c-bg);
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-contact .contact-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 38%;
  display: block;
  filter: saturate(0.55) contrast(1.08) brightness(0.55);
}

.page-contact .contact-hero__shade {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(11, 29, 58, 0.22) 0%, rgba(11, 29, 58, 0.65) 48%, var(--c-bg) 100%),
    linear-gradient(90deg, rgba(11, 29, 58, 0.72) 0%, rgba(11, 29, 58, 0.1) 50%, rgba(11, 29, 58, 0.35) 100%);
}

.page-contact .contact-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.012) 0 1px, transparent 1px 5px);
}

.page-contact .contact-hero__container {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--pc-page-pad);
}

.page-contact .contact-hero .breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  background: rgba(11, 29, 58, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-size: 14px;
  color: var(--c-muted);
  margin-bottom: 44px;
}

.page-contact .contact-hero .breadcrumb a {
  color: var(--c-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.page-contact .contact-hero .breadcrumb a:hover {
  color: var(--c-accent);
}

.page-contact .contact-hero .breadcrumb__sep {
  color: rgba(160, 176, 201, 0.5);
}

.page-contact .contact-hero__content {
  max-width: 820px;
}

.page-contact .contact-hero__kicker {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--c-accent);
  border-left: 3px solid var(--c-accent);
  padding-left: 12px;
  margin-bottom: 18px;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(42px, 7vw, 78px);
  line-height: 0.98;
  letter-spacing: 0.01em;
  margin: 0 0 22px;
  text-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.page-contact .contact-hero__lead {
  max-width: 640px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(245, 247, 250, 0.84);
  margin: 0;
}

/* ===== 官方联系渠道 ===== */
.page-contact .contact-channels {
  padding-top: clamp(60px, 9vw, 110px);
}

.page-contact .contact-channels__heading {
  max-width: 760px;
  margin-bottom: 40px;
}

.page-contact .contact-channels__heading h2,
.page-contact .contact-support__content h2,
.page-contact .contact-quick__heading h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.1;
  margin: 0 0 14px;
  color: var(--c-text);
}

.page-contact .contact-channels__subtitle {
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-muted);
  margin: 0;
  max-width: 640px;
}

.page-contact .contact-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-contact .contact-card {
  --tilt: 0deg;
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--pc-card-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 30px 24px 24px;
  overflow: hidden;
  transform: rotate(var(--tilt)) translateY(0);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.page-contact .contact-card::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-accent), rgba(57, 255, 20, 0.12) 70%, transparent);
  opacity: 0.85;
}

.page-contact .contact-card--phone::before {
  background: linear-gradient(90deg, var(--c-orange), rgba(255, 107, 53, 0.12) 70%, transparent);
}

.page-contact .contact-card--address::before {
  background: linear-gradient(90deg, rgba(160, 176, 201, 0.85), rgba(160, 176, 201, 0.12) 70%, transparent);
}

.page-contact .contact-card:hover {
  border-color: rgba(57, 255, 20, 0.3);
  box-shadow: 0 22px 44px rgba(0, 0, 0, 0.32);
  transform: rotate(var(--tilt)) translateY(-6px);
}

.page-contact .contact-card__no {
  position: absolute;
  top: 14px;
  right: 18px;
  font-family: var(--font-num);
  font-size: clamp(52px, 7vw, 78px);
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(160, 176, 201, 0.4);
  pointer-events: none;
  user-select: none;
  transition: -webkit-text-stroke-color var(--transition);
}

.page-contact .contact-card:hover .contact-card__no {
  -webkit-text-stroke: 1px rgba(57, 255, 20, 0.55);
}

.page-contact .contact-card > :not(.contact-card__no) {
  position: relative;
  z-index: 1;
}

.page-contact .contact-card__label {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin-bottom: 28px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .contact-card__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 22px;
  letter-spacing: 0.02em;
  color: var(--c-text);
  margin: 0 0 12px;
}

.page-contact .contact-card__value {
  font-family: var(--font-num);
  font-size: clamp(18px, 2.2vw, 23px);
  font-weight: 500;
  line-height: 1.5;
  color: var(--c-text);
  margin: 0 0 18px;
  padding-left: 14px;
  border-left: 3px solid var(--c-accent);
  word-break: break-word;
}

.page-contact .contact-card--phone .contact-card__value {
  font-size: clamp(24px, 3vw, 32px);
  letter-spacing: 0.02em;
  border-left-color: var(--c-orange);
  font-weight: 600;
}

.page-contact .contact-card__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
  margin: 0 0 22px;
  flex: 1;
}

.page-contact .contact-card__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: fit-content;
  min-width: 156px;
  padding: 12px 20px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  text-decoration: none;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.03);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  font-family: var(--font-body);
}

.page-contact .contact-card__btn:hover {
  background: var(--c-accent);
  color: var(--c-bg);
  border-color: var(--c-accent);
}

.page-contact .contact-card__details summary {
  list-style: none;
  cursor: pointer;
}

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

.page-contact .contact-card__details-body {
  margin-top: 14px;
  padding: 14px 16px;
  border: 1px dashed var(--c-line);
  border-radius: var(--radius-sm);
  background: rgba(11, 29, 58, 0.5);
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
}

.page-contact .contact-card__details[open] .contact-card__btn--details {
  color: var(--c-accent);
  border-color: rgba(57, 255, 20, 0.4);
  background: rgba(57, 255, 20, 0.06);
}

/* ===== 支持响应说明 ===== */
.page-contact .contact-support {
  padding-block: clamp(56px, 8vw, 96px);
}

.page-contact .contact-support__board {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, rgba(14, 35, 69, 0.88), rgba(11, 29, 58, 0.62));
  overflow: hidden;
}

.page-contact .contact-support__board::before {
  content: '';
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--c-accent), transparent);
  z-index: 2;
}

.page-contact .contact-support__media {
  position: relative;
  min-height: 240px;
}

.page-contact .contact-support__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: sepia(0.28) hue-rotate(160deg) saturate(0.72) brightness(0.78);
}

.page-contact .contact-support__media::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(11, 29, 58, 0.28), rgba(11, 29, 58, 0.82));
}

.page-contact .contact-support__media-cap {
  position: absolute;
  left: 16px;
  bottom: 16px;
  z-index: 2;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-accent);
  background: rgba(11, 29, 58, 0.75);
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--c-line);
}

.page-contact .contact-support__content {
  padding: 32px 24px 36px;
}

.page-contact .contact-support__content .section-eyebrow {
  margin-bottom: 16px;
}

.page-contact .contact-support__content h2 {
  margin-bottom: 12px;
}

.page-contact .contact-support__lead {
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-muted);
  margin: 0 0 30px;
}

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

.page-contact .contact-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  padding-bottom: 26px;
}

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

.page-contact .contact-timeline__item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 19px;
  top: 42px;
  bottom: 2px;
  width: 2px;
  background: linear-gradient(to bottom, rgba(57, 255, 20, 0.28), rgba(160, 176, 201, 0.12));
}

.page-contact .contact-timeline__marker {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 600;
  color: var(--c-bg);
  background: var(--c-accent);
  box-shadow: 0 0 0 6px rgba(57, 255, 20, 0.1);
}

.page-contact .contact-timeline__item:nth-child(2) .contact-timeline__marker {
  background: var(--c-orange);
  box-shadow: 0 0 0 6px rgba(255, 107, 53, 0.13);
}

.page-contact .contact-timeline__item:nth-child(3) .contact-timeline__marker {
  background: rgba(160, 176, 201, 0.9);
  box-shadow: 0 0 0 6px rgba(160, 176, 201, 0.12);
}

.page-contact .contact-timeline__body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--c-text);
  margin: 2px 0 8px;
}

.page-contact .contact-timeline__body p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
  margin: 0;
}

/* ===== 常见直达 ===== */
.page-contact .contact-quick {
  padding-bottom: clamp(60px, 9vw, 110px);
}

.page-contact .contact-quick__heading {
  margin-bottom: 32px;
}

.page-contact .contact-quick__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .contact-quick__card {
  display: block;
  position: relative;
  padding: 26px 22px 22px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  background: rgba(14, 35, 69, 0.5);
  text-decoration: none;
  color: var(--c-text);
  overflow: hidden;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.page-contact .contact-quick__card::after {
  content: '';
  position: absolute;
  right: -44px;
  top: -44px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(57, 255, 20, 0.12), transparent 70%);
  pointer-events: none;
}

.page-contact .contact-quick__card:hover {
  border-color: rgba(57, 255, 20, 0.38);
  background: rgba(19, 43, 85, 0.62);
  transform: translateY(-3px);
}

.page-contact .contact-quick__tag {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-accent);
  border: 1px solid rgba(57, 255, 20, 0.35);
  border-radius: 999px;
  padding: 5px 11px;
  margin-bottom: 18px;
}

.page-contact .contact-quick__card--news .contact-quick__tag {
  color: var(--c-orange);
  border-color: rgba(255, 107, 53, 0.4);
}

.page-contact .contact-quick__card h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 21px;
  letter-spacing: 0.02em;
  margin: 0 0 10px;
  color: var(--c-text);
}

.page-contact .contact-quick__card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
  margin: 0 0 18px;
  max-width: 34ch;
}

.page-contact .contact-quick__arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--c-line);
  border-radius: 50%;
  font-size: 19px;
  color: var(--c-muted);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.page-contact .contact-quick__card:hover .contact-quick__arrow {
  background: var(--c-accent);
  color: var(--c-bg);
  border-color: var(--c-accent);
}

/* ===== 平板 ===== */
@media (min-width: 768px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .page-contact .contact-card--email {
    --tilt: -1.1deg;
  }

  .page-contact .contact-card--phone {
    --tilt: 0.9deg;
  }

  .page-contact .contact-card--address {
    --tilt: -0.5deg;
  }

  .page-contact .contact-support__board {
    grid-template-columns: 0.9fr 1.1fr;
  }

  .page-contact .contact-support__media {
    min-height: 100%;
  }

  .page-contact .contact-support__content {
    padding: 40px 32px 44px;
  }

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

/* ===== 桌面 ===== */
@media (min-width: 1060px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

  .page-contact .contact-card {
    min-height: 400px;
    padding: 34px 28px 28px;
  }

  .page-contact .contact-card__value {
    font-size: 23px;
  }

  .page-contact .contact-card--phone .contact-card__value {
    font-size: 32px;
  }

  .page-contact .contact-support__board {
    border-radius: calc(var(--radius-lg) + 6px);
  }

  .page-contact .contact-support__content {
    padding: 52px 48px;
  }

  .page-contact .contact-quick__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact .contact-quick__card {
    padding: 28px 24px 24px;
  }

  .page-contact .contact-hero h1 {
    font-size: 84px;
  }
}