.page-contact {
  --contact-card-bg: #0a2540;
  --contact-card-border: #f5c518;
  --contact-card-icon: #f5c518;
  --contact-card-title: #ffffff;
  --contact-card-value: #f5c518;
  --contact-card-desc: rgba(255,255,255,0.75);
  --contact-hero-bg: #0a2540;
  --contact-hero-shape: #f5c518;
  --contact-help-bg: #f2f4f8;
  --contact-help-arrow: #ff6b35;
  --contact-radius: 12px;
  --contact-transition: 0.35s cubic-bezier(0.25,0.46,0.45,0.94);
}

/* ── 首屏：窄幅，深蓝底，斜线切角 ── */
.page-contact .contact-hero {
  position: relative;
  background: var(--contact-hero-bg);
  padding: 3rem 0 4rem;
  overflow: hidden;
  isolation: isolate;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 2;
}

.page-contact .contact-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font: var(--font-small);
  color: rgba(255,255,255,0.6);
  margin-bottom: 2rem;
}

.page-contact .contact-breadcrumb__link {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: color var(--contact-transition);
}

.page-contact .contact-breadcrumb__link:hover,
.page-contact .contact-breadcrumb__link:focus-visible {
  color: var(--secondary);
}

.page-contact .contact-breadcrumb__sep {
  user-select: none;
  color: rgba(255,255,255,0.35);
}

.page-contact .contact-breadcrumb__current {
  color: var(--secondary);
  font-weight: 500;
}

.page-contact .contact-hero__title {
  font: var(--font-heading);
  color: #ffffff;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
  line-height: 1.05;
}

.page-contact .contact-hero__sub {
  font: var(--font-body);
  color: var(--secondary);
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: 400;
  margin: 0;
  opacity: 0.9;
}

/* 斜线切角装饰块 */
.page-contact .contact-hero__shape {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 220px;
  height: 120px;
  background: var(--contact-hero-shape);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  opacity: 0.25;
  z-index: 0;
  pointer-events: none;
}

/* ── 三列卡片区：宽幅 ── */
.page-contact .contact-cards {
  padding: 3.5rem 0;
  background: var(--bg);
}

.page-contact .contact-cards__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

/* ── 卡片通用 ── */
.page-contact .contact-card {
  background: var(--contact-card-bg);
  border: 2px solid var(--contact-card-border);
  border-radius: var(--contact-radius);
  overflow: hidden;
  position: relative;
  transition: transform var(--contact-transition), box-shadow var(--contact-transition);
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(10,37,64,0.25);
}

.page-contact .contact-card__link {
  display: block;
  padding: 2rem 1.75rem;
  text-decoration: none;
  color: inherit;
  position: relative;
  z-index: 2;
  height: 100%;
}

.page-contact .contact-card__link--static {
  cursor: default;
}

.page-contact .contact-card__icon {
  color: var(--contact-card-icon);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.page-contact .contact-card__icon svg {
  width: 48px;
  height: 48px;
  display: block;
}

.page-contact .contact-card__title {
  font: var(--font-body);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--contact-card-title);
  margin: 0 0 0.75rem;
  letter-spacing: 0.01em;
}

.page-contact .contact-card__value {
  font: var(--font-body);
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  font-weight: 600;
  color: var(--contact-card-value);
  margin: 0 0 0.5rem;
  word-break: break-all;
}

.page-contact .contact-card__desc {
  font: var(--font-small);
  color: var(--contact-card-desc);
  margin: 0;
  line-height: 1.5;
}

/* 电话卡片悬停提示 */
.page-contact .contact-card__tooltip {
  display: inline-block;
  font: var(--font-small);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  background: rgba(255,107,53,0.12);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  margin-top: 0.75rem;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--contact-transition), transform var(--contact-transition);
  pointer-events: none;
}

.page-contact .contact-card--phone:hover .contact-card__tooltip,
.page-contact .contact-card--phone:focus-within .contact-card__tooltip {
  opacity: 1;
  transform: translateY(0);
}

/* ── 地址卡片背景剪影 ── */
.page-contact .contact-card--address .contact-card__link {
  position: relative;
}

.page-contact .contact-card__bg {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 180px;
  height: 140px;
  overflow: hidden;
  z-index: 0;
  opacity: 0.15;
  pointer-events: none;
}

.page-contact .contact-card__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center bottom;
  display: block;
}

/* 地址卡片内容在背景之上 */
.page-contact .contact-card--address .contact-card__icon,
.page-contact .contact-card--address .contact-card__title,
.page-contact .contact-card--address .contact-card__value,
.page-contact .contact-card--address .contact-card__desc {
  position: relative;
  z-index: 1;
}

/* ── 帮助提示区：窄幅 ── */
.page-contact .contact-help {
  padding: 2.5rem 0;
  background: var(--contact-help-bg);
}

.page-contact .contact-help__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.page-contact .contact-help__image {
  flex-shrink: 0;
  width: 120px;
  height: auto;
}

.page-contact .contact-help__img {
  width: 100%;
  height: auto;
  display: block;
  opacity: 0.7;
}

.page-contact .contact-help__heading {
  font: var(--font-body);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 0.5rem;
}

.page-contact .contact-help__text {
  font: var(--font-small);
  color: var(--text-secondary);
  margin: 0 0 1.25rem;
  max-width: 480px;
}

.page-contact .contact-help__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  color: #ffffff;
  background: var(--accent);
  padding: 0.75rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  transition: background var(--contact-transition), transform var(--contact-transition);
  box-shadow: 0 4px 12px rgba(255,107,53,0.3);
}

.page-contact .contact-help__btn:hover,
.page-contact .contact-help__btn:focus-visible {
  background: #e55a2b;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255,107,53,0.35);
}

/* ── 桌面端 ≥768px ── */
@media (min-width: 768px) {
  .page-contact .contact-hero {
    padding: 4rem 0 5.5rem;
  }

  .page-contact .contact-hero__title {
    font-size: clamp(3rem, 6vw, 4.5rem);
  }

  .page-contact .contact-hero__shape {
    width: 320px;
    height: 180px;
    opacity: 0.3;
  }

  .page-contact .contact-cards {
    padding: 4.5rem 0;
  }

  .page-contact .contact-cards__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }

  .page-contact .contact-card__link {
    padding: 2.5rem 2rem;
  }

  .page-contact .contact-card__bg {
    width: 220px;
    height: 160px;
  }

  .page-contact .contact-help {
    padding: 3rem 0;
  }

  .page-contact .contact-help__inner {
    flex-direction: row;
    justify-content: center;
    text-align: left;
    gap: 2.5rem;
  }

  .page-contact .contact-help__image {
    width: 160px;
  }

  .page-contact .contact-help__text {
    margin-bottom: 1.5rem;
  }
}

/* ── 大桌面端 ≥1024px ── */
@media (min-width: 1024px) {
  .page-contact .contact-hero {
    padding: 5rem 0 7rem;
  }

  .page-contact .contact-hero__shape {
    width: 420px;
    height: 240px;
  }

  .page-contact .contact-cards__grid {
    gap: 2.5rem;
  }

  .page-contact .contact-card__link {
    padding: 3rem 2.5rem;
  }

  .page-contact .contact-card__bg {
    width: 260px;
    height: 180px;
  }

  .page-contact .contact-help__image {
    width: 200px;
  }
}