/* ===== 联系品牌页专属样式 ===== */
.page-contact {
  --contact-bg-start: #06152b;
  --contact-bg-end: #0a1f3d;
  --contact-card-bg: rgba(10, 31, 61, 0.68);
  --contact-card-border: rgba(224, 230, 237, 0.15);
  --contact-card-hover: rgba(57, 255, 20, 0.08);
  --contact-glow: #39FF14;
  --contact-glow-alt: #FF6B35;
  --contact-line-speed: 12s;

  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, var(--contact-bg-start), var(--contact-bg-end));
  overflow: hidden;
}

/* ---------- 背景层 ---------- */
.contact-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.contact-bg__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
  mix-blend-mode: overlay;
}

.contact-bg__overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 40% 50%, rgba(11, 61, 145, 0.35), transparent 70%),
              radial-gradient(ellipse at 80% 30%, rgba(255, 107, 53, 0.08), transparent 50%);
}

/* ---------- 数据流动画线条 ---------- */
.contact-bg__lines {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.contact-bg__line {
  position: absolute;
  height: 2px;
  width: 40%;
  border-radius: 2px;
  opacity: 0.5;
  will-change: transform;
}

.contact-bg__line--1 {
  top: 22%;
  left: -45%;
  background: linear-gradient(90deg, transparent, var(--contact-glow), transparent);
  animation: contactLineSlide var(--contact-line-speed) linear infinite;
  animation-delay: 0s;
  width: 50%;
  height: 3px;
  opacity: 0.35;
}

.contact-bg__line--2 {
  top: 58%;
  left: -35%;
  background: linear-gradient(90deg, transparent, var(--contact-glow-alt), transparent);
  animation: contactLineSlide calc(var(--contact-line-speed) * 1.4) linear infinite;
  animation-delay: -3s;
  width: 35%;
  height: 2px;
  opacity: 0.25;
}

.contact-bg__line--3 {
  top: 82%;
  left: -50%;
  background: linear-gradient(90deg, transparent, var(--contact-glow), transparent);
  animation: contactLineSlide calc(var(--contact-line-speed) * 0.8) linear infinite;
  animation-delay: -7s;
  width: 55%;
  height: 4px;
  opacity: 0.2;
}

@keyframes contactLineSlide {
  0%   { transform: translateX(0); }
  100% { transform: translateX(280vw); }
}

/* ---------- 内容容器 ---------- */
.contact-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--content-max, 1200px);
  margin: 0 auto;
  padding: var(--gap-xl, 80px) var(--gap-md, 24px) var(--gap-lg, 48px);
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ---------- 面包屑 ---------- */
.contact-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--gap-xs, 8px);
  margin-bottom: var(--gap-sm, 16px);
  font-family: var(--font-body, 'Inter', system-ui, sans-serif);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  color: var(--color-muted, #E0E6ED);
  opacity: 0.7;
}

.contact-breadcrumb__link {
  color: var(--color-muted, #E0E6ED);
  text-decoration: none;
  transition: color var(--transition, 0.25s);
}

.contact-breadcrumb__link:hover,
.contact-breadcrumb__link:focus-visible {
  color: var(--color-accent, #FF6B35);
  outline: none;
  text-decoration: underline;
}

.contact-breadcrumb__sep {
  color: var(--color-muted, #E0E6ED);
  opacity: 0.5;
}

.contact-breadcrumb__current {
  font-weight: 500;
  color: var(--color-white, #FFFFFF);
}

/* ---------- 标题 ---------- */
.contact-title {
  font-family: var(--font-heading, 'Poppins', system-ui, sans-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--color-white, #FFFFFF);
  margin: 0 0 var(--gap-xs, 8px);
  text-align: center;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.contact-subtitle {
  font-family: var(--font-body, 'Inter', system-ui, sans-serif);
  font-size: clamp(0.95rem, 1.6vw, 1.15rem);
  color: var(--color-muted, #E0E6ED);
  opacity: 0.8;
  margin: 0 0 var(--gap-xl, 80px);
  text-align: center;
  max-width: 480px;
  line-height: 1.6;
}

/* ---------- 联系卡片 ---------- */
.contact-card {
  width: 100%;
  max-width: 640px;
  background: var(--contact-card-bg);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  border: 1px solid var(--contact-card-border);
  border-radius: var(--radius-md, 8px);
  padding: var(--gap-lg, 48px) var(--gap-md, 24px);
  box-shadow: 0 8px 48px rgba(0, 0, 0, 0.4);
  transition: border-color var(--transition, 0.25s), box-shadow var(--transition, 0.25s);
}

.contact-card:hover,
.contact-card:focus-within {
  border-color: rgba(57, 255, 20, 0.35);
  box-shadow: 0 8px 48px rgba(0, 0, 0, 0.5), 0 0 28px rgba(57, 255, 20, 0.08);
}

.contact-card__item {
  display: flex;
  align-items: flex-start;
  gap: var(--gap-md, 24px);
  padding: var(--gap-sm, 16px) 0;
  border-radius: var(--radius-sm, 4px);
  transition: background var(--transition, 0.25s);
}

.contact-card__item:hover,
.contact-card__item:focus-within {
  background: var(--contact-card-hover);
}

.contact-card__item:first-child {
  padding-top: 0;
}

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

.contact-card__icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  color: var(--color-accent, #FF6B35);
  margin-top: 2px;
  transition: color var(--transition, 0.25s), transform var(--transition, 0.25s);
}

.contact-card__item:hover .contact-card__icon,
.contact-card__item:focus-within .contact-card__icon {
  color: var(--color-neon, #39FF14);
  transform: scale(1.05);
}

.contact-card__info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.contact-card__label {
  font-family: var(--font-data, 'Playfair Display', Georgia, serif);
  font-size: 0.75rem;
  font-style: italic;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gold, #FFD700);
  opacity: 0.85;
  line-height: 1.4;
}

.contact-card__value {
  font-family: var(--font-body, 'Inter', system-ui, sans-serif);
  font-size: clamp(1rem, 2.2vw, 1.15rem);
  font-weight: 500;
  color: var(--color-white, #FFFFFF);
  line-height: 1.5;
  word-break: break-word;
}

.contact-card__value--link {
  color: var(--color-accent, #FF6B35);
  text-decoration: none;
  transition: color var(--transition, 0.25s);
}

.contact-card__value--link:hover,
.contact-card__value--link:focus-visible {
  color: var(--color-neon, #39FF14);
  outline: none;
  text-decoration: underline;
}

.contact-card__note {
  font-family: var(--font-body, 'Inter', system-ui, sans-serif);
  font-size: 0.82rem;
  color: var(--color-muted, #E0E6ED);
  opacity: 0.7;
  line-height: 1.5;
}

.contact-card__note--caution {
  color: var(--color-gold, #FFD700);
  opacity: 0.6;
  font-style: italic;
}

.contact-card__sub-link {
  color: var(--color-muted, #E0E6ED);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition, 0.25s);
}

.contact-card__sub-link:hover,
.contact-card__sub-link:focus-visible {
  color: var(--color-accent, #FF6B35);
  outline: none;
}

.contact-card__divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--contact-card-border), transparent);
  margin: 0;
  border: none;
}

/* ---------- 帮助引导 ---------- */
.contact-help {
  margin-top: var(--gap-xl, 80px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--gap-sm, 16px);
  text-align: center;
  max-width: 420px;
}

.contact-help__icon {
  width: 64px;
  height: 64px;
  object-fit: contain;
  opacity: 0.7;
  transition: opacity var(--transition, 0.25s), transform var(--transition, 0.25s);
  border-radius: var(--radius-sm, 4px);
}

.contact-help:hover .contact-help__icon {
  opacity: 1;
  transform: scale(1.04);
}

.contact-help__text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-help__heading {
  font-family: var(--font-heading, 'Poppins', system-ui, sans-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white, #FFFFFF);
  margin: 0;
  line-height: 1.4;
}

.contact-help__desc {
  font-family: var(--font-body, 'Inter', system-ui, sans-serif);
  font-size: 0.9rem;
  color: var(--color-muted, #E0E6ED);
  opacity: 0.75;
  margin: 0;
  line-height: 1.5;
}

.contact-help__btn {
  margin-top: var(--gap-xs, 8px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2rem;
  font-family: var(--font-body, 'Inter', system-ui, sans-serif);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-white, #FFFFFF);
  background: var(--color-accent, #FF6B35);
  border: none;
  border-radius: var(--radius-sm, 4px);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition, 0.25s), box-shadow var(--transition, 0.25s), transform var(--transition, 0.25s);
  letter-spacing: 0.02em;
}

.contact-help__btn:hover,
.contact-help__btn:focus-visible {
  background: #e85d2a;
  box-shadow: 0 0 24px rgba(255, 107, 53, 0.3);
  transform: translateY(-1px);
  outline: none;
}

.contact-help__btn:focus-visible {
  outline: 2px solid var(--color-neon, #39FF14);
  outline-offset: 3px;
}

/* ---------- 响应式：桌面端 ---------- */
@media (min-width: 768px) {
  .contact-content {
    padding: var(--gap-xl, 80px) var(--gap-lg, 48px) 100px;
  }

  .contact-card {
    padding: var(--gap-xl, 80px) var(--gap-lg, 48px);
    border-radius: var(--radius-md, 8px);
  }

  .contact-card__item {
    padding: var(--gap-md, 24px) 0;
    gap: var(--gap-lg, 48px);
  }

  .contact-card__icon {
    width: 32px;
    height: 32px;
  }

  .contact-help {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--gap-md, 24px);
    max-width: 600px;
    text-align: left;
  }

  .contact-help__icon {
    width: 80px;
    height: 80px;
  }

  .contact-help__text {
    flex: 1;
    min-width: 200px;
  }

  .contact-help__btn {
    flex-shrink: 0;
  }

  .contact-bg__line--1 { width: 30%; }
  .contact-bg__line--2 { width: 22%; }
  .contact-bg__line--3 { width: 35%; }
}

@media (min-width: 1024px) {
  .contact-card {
    max-width: 680px;
  }

  .contact-help {
    gap: var(--gap-lg, 48px);
  }
}