.page-contact {
  position: relative;
  min-height: 100vh;
  background-color: var(--color-bg, #F5E6D0);
  color: var(--color-dark, #1A1A1A);
  font-family: var(--font-body, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif);
  overflow-x: hidden;
}

/* 背景图 */
.page-contact .contact-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.18;
}
.page-contact .contact-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* 网格线叠加 */
.page-contact .contact-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(139,0,0,0.06) 39px, rgba(139,0,0,0.06) 40px),
    repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(139,0,0,0.06) 39px, rgba(139,0,0,0.06) 40px);
  pointer-events: none;
}

/* 主内容容器 */
.page-contact .page-contact-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 1rem 1.25rem 3rem;
}

/* 面包屑 */
.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--color-mid, #333);
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
  padding-top: 0.5rem;
}
.page-contact .breadcrumb a {
  color: var(--color-primary, #8B0000);
  text-decoration: none;
  transition: color var(--transition-fast, 0.2s);
}
.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--color-secondary, #FFD700);
  text-decoration: underline;
}
.page-contact .breadcrumb .separator {
  color: var(--color-light, #B8A88A);
  font-weight: 300;
}
.page-contact .breadcrumb [aria-current="page"] {
  color: var(--color-dark, #1A1A1A);
  font-weight: 600;
}

/* 页面标题区 */
.page-contact .page-header {
  margin-bottom: 2.5rem;
  position: relative;
}
.page-contact .page-header .section-number {
  display: block;
  font-family: var(--font-number, 'Courier New', Consolas, monospace);
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-primary, #8B0000);
  opacity: 0.25;
  letter-spacing: -0.02em;
  margin-bottom: -0.4rem;
}
.page-contact .page-header h1 {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.05;
  color: var(--color-dark, #1A1A1A);
  margin: 0 0 0.4rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.page-contact .page-desc {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-mid, #333);
  max-width: 32rem;
  margin: 0;
}

/* 框景容器 —— 双线边框 + 刻度 */
.page-contact .frame-viewport {
  position: relative;
  margin-bottom: 2.5rem;
  border: 2px solid var(--color-primary, #8B0000);
  outline: 1px solid var(--color-secondary-dim, #C8A800);
  outline-offset: 4px;
  background: var(--color-glass, rgba(255,255,255,0.15));
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  border-radius: 0;
  padding: 0.25rem;
}
/* 刻度标记：四角 */
.page-contact .frame-viewport::before,
.page-contact .frame-viewport::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: var(--color-secondary, #FFD700);
  border-style: solid;
  border-width: 0;
  pointer-events: none;
  z-index: 2;
}
.page-contact .frame-viewport::before {
  top: -2px;
  left: -2px;
  border-top-width: 3px;
  border-left-width: 3px;
}
.page-contact .frame-viewport::after {
  bottom: -2px;
  right: -2px;
  border-bottom-width: 3px;
  border-right-width: 3px;
}
.page-contact .frame-viewport .frame-inner {
  position: relative;
  border: 1px solid var(--color-glass-border, rgba(0,0,0,0.1));
  padding: 1.5rem 1rem;
}
/* 额外两个角用伪元素模拟（通过 frame-inner 的伪元素） */
.page-contact .frame-viewport .frame-inner::before,
.page-contact .frame-viewport .frame-inner::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--color-secondary, #FFD700);
  border-style: solid;
  border-width: 0;
  pointer-events: none;
  z-index: 2;
}
.page-contact .frame-viewport .frame-inner::before {
  top: -1px;
  right: -1px;
  border-top-width: 2px;
  border-right-width: 2px;
}
.page-contact .frame-viewport .frame-inner::after {
  bottom: -1px;
  left: -1px;
  border-bottom-width: 2px;
  border-left-width: 2px;
}

/* 联系卡片组 */
.page-contact .contact-cards {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* 单张卡片 */
.page-contact .data-card {
  background: var(--color-glass-strong, rgba(255,255,255,0.30));
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid var(--color-glass-border, rgba(0,0,0,0.1));
  padding: 1.5rem 1.25rem;
  text-align: center;
  transition: transform var(--transition-med, 0.35s), box-shadow var(--transition-med, 0.35s);
  box-shadow: var(--shadow-card, 0 4px 20px rgba(0,0,0,0.08));
}
.page-contact .data-card[data-hover="float"]:hover,
.page-contact .data-card[data-hover="float"]:focus-within {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover, 0 12px 40px rgba(0,0,0,0.15));
}
.page-contact .card-icon {
  width: 60px;
  height: 60px;
  object-fit: contain;
  display: block;
  margin: 0 auto 0.75rem;
  border-radius: var(--border-radius, 4px);
  background: var(--color-bg-dark, #E8D5B8);
  padding: 0.4rem;
}
.page-contact .card-title {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-dark, #1A1A1A);
  margin: 0 0 0.5rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.page-contact .card-link {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary, #8B0000);
  text-decoration: none;
  word-break: break-all;
  display: inline-block;
  transition: color var(--transition-fast, 0.2s);
}
.page-contact .card-link:hover,
.page-contact .card-link:focus-visible {
  color: var(--color-secondary, #FFD700);
  text-decoration: underline;
}
.page-contact .card-note {
  font-size: 0.85rem;
  color: var(--color-mid, #333);
  margin: 0.35rem 0 0;
  line-height: 1.4;
}

/* 信息网格（01 客服支持 + 02 运营地址） */
.page-contact .info-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

/* 信息块 */
.page-contact .info-block {
  background: var(--color-glass, rgba(255,255,255,0.15));
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  border: 1px solid var(--color-glass-border, rgba(0,0,0,0.1));
  padding: 1.5rem 1.25rem;
  position: relative;
  transition: background var(--transition-fast, 0.2s);
}
.page-contact .info-block:hover {
  background: var(--color-glass-strong, rgba(255,255,255,0.30));
}
.page-contact .info-block .section-number {
  display: block;
  font-family: var(--font-number, 'Courier New', Consolas, monospace);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-secondary, #FFD700);
  opacity: 0.5;
  margin-bottom: 0.25rem;
}
.page-contact .info-heading {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-dark, #1A1A1A);
  margin: 0 0 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.page-contact .info-content {
  padding-left: 0;
}
.page-contact .info-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-mid, #333);
  margin: 0 0 0.3rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.page-contact .info-link {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary, #8B0000);
  text-decoration: none;
  word-break: break-all;
  transition: color var(--transition-fast, 0.2s);
}
.page-contact .info-link:hover,
.page-contact .info-link:focus-visible {
  color: var(--color-secondary, #FFD700);
  text-decoration: underline;
}
.page-contact .info-detail {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-dark, #1A1A1A);
  margin: 0.3rem 0 0;
}
.page-contact .icp-info {
  font-family: var(--font-mono, 'Courier New', Consolas, monospace);
  font-size: 0.8rem;
  color: var(--color-mid, #333);
  margin: 0.6rem 0 0;
  letter-spacing: 0.02em;
  padding-top: 0.5rem;
  border-top: 1px solid var(--color-glass-border, rgba(0,0,0,0.1));
}

/* 内部链接导航 */
.page-contact .internal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-glass-border, rgba(0,0,0,0.1));
}
.page-contact .internal-links .nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary, #8B0000);
  text-decoration: none;
  padding: 0.25rem 0;
  position: relative;
  transition: color var(--transition-fast, 0.2s);
}
.page-contact .internal-links .nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--color-secondary, #FFD700);
  transition: width var(--transition-med, 0.35s);
}
.page-contact .internal-links .nav-link:hover,
.page-contact .internal-links .nav-link:focus-visible {
  color: var(--color-secondary, #FFD700);
}
.page-contact .internal-links .nav-link:hover::after,
.page-contact .internal-links .nav-link:focus-visible::after {
  width: 100%;
}

/* 响应式 —— 平板与桌面 */
@media (min-width: 640px) {
  .page-contact .page-contact-inner {
    padding: 1.5rem 2rem 4rem;
  }
  .page-contact .page-header .section-number {
    font-size: 3.2rem;
  }
  .page-contact .page-header h1 {
    font-size: 3rem;
  }
  .page-contact .page-desc {
    font-size: 1.1rem;
  }
  .page-contact .contact-cards {
    flex-direction: row;
    justify-content: center;
    gap: 1.5rem;
  }
  .page-contact .data-card {
    flex: 1;
    max-width: 320px;
    padding: 2rem 1.5rem;
  }
  .page-contact .card-icon {
    width: 72px;
    height: 72px;
  }
  .page-contact .card-title {
    font-size: 1.35rem;
  }
  .page-contact .info-grid {
    flex-direction: row;
    gap: 1.5rem;
  }
  .page-contact .info-block {
    flex: 1;
    padding: 1.75rem 1.5rem;
  }
  .page-contact .info-block .section-number {
    font-size: 2.2rem;
  }
  .page-contact .info-heading {
    font-size: 1.4rem;
  }
}

@media (min-width: 1024px) {
  .page-contact .page-contact-inner {
    padding: 2rem 2.5rem 5rem;
  }
  .page-contact .page-header .section-number {
    font-size: 3.6rem;
  }
  .page-contact .page-header h1 {
    font-size: 3.5rem;
  }
  .page-contact .frame-viewport {
    padding: 0.35rem;
  }
  .page-contact .frame-viewport .frame-inner {
    padding: 2rem 2.5rem;
  }
  .page-contact .contact-cards {
    gap: 2rem;
  }
  .page-contact .data-card {
    max-width: 360px;
    padding: 2.5rem 2rem;
  }
  .page-contact .card-icon {
    width: 80px;
    height: 80px;
  }
  .page-contact .card-title {
    font-size: 1.45rem;
  }
  .page-contact .info-grid {
    gap: 2rem;
  }
  .page-contact .info-block {
    padding: 2rem 2rem;
  }
  .page-contact .info-block .section-number {
    font-size: 2.5rem;
  }
  .page-contact .info-heading {
    font-size: 1.5rem;
  }
  .page-contact .internal-links {
    gap: 1rem 2rem;
  }
  .page-contact .internal-links .nav-link {
    font-size: 0.95rem;
  }
}

/* 极窄屏安全 */
@media (max-width: 380px) {
  .page-contact .page-contact-inner {
    padding: 0.75rem 1rem 2rem;
  }
  .page-contact .page-header h1 {
    font-size: 1.8rem;
  }
  .page-contact .frame-viewport .frame-inner {
    padding: 1rem 0.75rem;
  }
  .page-contact .data-card {
    padding: 1rem 0.75rem;
  }
  .page-contact .card-icon {
    width: 48px;
    height: 48px;
  }
  .page-contact .info-block {
    padding: 1rem 0.75rem;
  }
}