.page-contact {
  --contact-accent: var(--color-accent-cyan, #00E5FF);
  --contact-accent-orange: var(--color-accent-orange, #FF6B35);
  --contact-card-bg: var(--color-bg-card, #141C2B);
  --contact-border: var(--color-border, #2A3A50);
  --contact-text-primary: var(--color-text-primary, #E0E6F0);
  --contact-text-secondary: var(--color-text-secondary, #8899B0);
  --contact-glow: 0 0 12px rgba(0, 229, 255, 0.08);
  --contact-radius: 12px;
  --contact-transition: 0.25s cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* 面包屑 */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem 0.6rem;
  padding: 1.5rem 0 0.5rem;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.8rem;
  color: var(--contact-text-secondary);
}

.page-contact .breadcrumb__link {
  color: var(--contact-text-secondary);
  text-decoration: none;
  transition: color var(--contact-transition);
}

.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--contact-accent);
  outline: none;
}

.page-contact .breadcrumb__link[aria-current="page"] {
  color: var(--contact-text-primary);
  cursor: default;
  pointer-events: none;
}

.page-contact .breadcrumb__separator {
  color: var(--contact-border);
  user-select: none;
}

/* Hero */
.page-contact .contact-hero {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding: 2rem 0 3rem;
  border-bottom: 1px solid var(--contact-border);
}

.page-contact .contact-hero__tag {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--contact-accent);
  border: 1px solid var(--contact-accent);
  padding: 0.2rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 1rem;
  font-family: var(--font-headings, 'Poppins', sans-serif);
  font-weight: 600;
}

.page-contact .contact-hero__title {
  font-family: var(--font-headings, 'Poppins', sans-serif);
  font-weight: 800;
  font-size: 2rem;
  line-height: 1.2;
  color: var(--contact-text-primary);
  margin: 0 0 1rem;
  letter-spacing: -0.01em;
}

.page-contact .contact-hero__desc {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--contact-text-secondary);
  max-width: 54ch;
  margin: 0;
}

.page-contact .contact-hero__visual {
  flex-shrink: 0;
  border-radius: var(--contact-radius);
  overflow: hidden;
  box-shadow: var(--contact-glow);
  border: 1px solid var(--contact-border);
  background: var(--contact-card-bg);
}

.page-contact .contact-hero__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

/* 联系方式区域 */
.page-contact .contact-details {
  padding: 3rem 0;
}

.page-contact .contact-details__title {
  margin-bottom: 2rem;
  font-family: var(--font-headings, 'Poppins', sans-serif);
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--contact-text-primary);
  position: relative;
  display: inline-block;
}

.page-contact .contact-details__title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 48px;
  height: 3px;
  background: var(--contact-accent);
  border-radius: 2px;
}

.page-contact .contact-cards {
  display: grid;
  gap: 1.5rem;
}

/* 联系卡片 */
.page-contact .contact-card {
  background: var(--contact-card-bg);
  border: 1px solid var(--contact-border);
  border-radius: var(--contact-radius);
  padding: 2rem 1.5rem;
  transition: transform var(--contact-transition), box-shadow var(--contact-transition);
  position: relative;
  overflow: hidden;
}

.page-contact .contact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--contact-accent);
  opacity: 0.4;
  transition: opacity var(--contact-transition);
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 229, 255, 0.1);
  border-color: rgba(0, 229, 255, 0.3);
}

.page-contact .contact-card:hover::before,
.page-contact .contact-card:focus-within::before {
  opacity: 1;
}

.page-contact .contact-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(0, 229, 255, 0.08);
  color: var(--contact-accent);
  margin-bottom: 1.2rem;
  transition: background var(--contact-transition), transform var(--contact-transition);
}

.page-contact .contact-card:hover .contact-card__icon {
  background: rgba(0, 229, 255, 0.18);
  transform: scale(1.05);
}

.page-contact .contact-card__label {
  font-family: var(--font-headings, 'Poppins', sans-serif);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--contact-text-secondary);
  margin: 0 0 0.5rem;
}

.page-contact .contact-card__value {
  display: block;
  font-family: var(--font-numbers, 'JetBrains Mono', monospace);
  font-size: 1.05rem;
  color: var(--contact-text-primary);
  margin-bottom: 0.6rem;
  word-break: break-all;
}

.page-contact .contact-card__value--text {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-weight: 400;
  line-height: 1.5;
  word-break: break-word;
}

.page-contact .contact-card__link {
  text-decoration: none;
  color: var(--contact-text-primary);
  transition: color var(--contact-transition);
  position: relative;
}

.page-contact .contact-card__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--contact-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--contact-transition);
}

.page-contact .contact-card__link:hover,
.page-contact .contact-card__link:focus-visible {
  color: var(--contact-accent);
  outline: none;
}

.page-contact .contact-card__link:hover::after,
.page-contact .contact-card__link:focus-visible::after {
  transform: scaleX(1);
}

.page-contact .contact-card__note {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.8rem;
  color: var(--contact-text-secondary);
  line-height: 1.5;
  margin: 0;
  opacity: 0.8;
}

/* 表单区域 */
.page-contact .contact-form-section {
  padding: 3rem 0;
  border-top: 1px solid var(--contact-border);
  border-bottom: 1px solid var(--contact-border);
}

.page-contact .contact-form-section__inner {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.page-contact .contact-form-section__info {
  max-width: 42ch;
}

.page-contact .contact-form-section__title {
  font-family: var(--font-headings, 'Poppins', sans-serif);
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--contact-text-primary);
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}

.page-contact .contact-form-section__title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 48px;
  height: 3px;
  background: var(--contact-accent-orange);
  border-radius: 2px;
}

.page-contact .contact-form-section__desc {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--contact-text-secondary);
  margin: 0 0 1.5rem;
}

.page-contact .contact-form-section__trust {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.page-contact .contact-form-section__trust .tag {
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--contact-accent);
  border: 1px solid rgba(0, 229, 255, 0.3);
  padding: 0.15rem 0.7rem;
  border-radius: 999px;
  background: rgba(0, 229, 255, 0.06);
}

.page-contact .contact-form-section__trust-text {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.8rem;
  color: var(--contact-text-secondary);
}

/* 表单样式 */
.page-contact .contact-form-wrapper {
  flex: 1;
  min-width: 0;
}

.page-contact .contact-form {
  background: var(--contact-card-bg);
  border: 1px solid var(--contact-border);
  border-radius: var(--contact-radius);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  box-shadow: var(--contact-glow);
}

.page-contact .contact-form__field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.page-contact .contact-form__label {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--contact-text-primary);
  letter-spacing: 0.02em;
}

.page-contact .contact-form__input,
.page-contact .contact-form__textarea {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 1rem;
  color: var(--contact-text-primary);
  background: rgba(10, 15, 26, 0.6);
  border: 1px solid var(--contact-border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  transition: border-color var(--contact-transition), box-shadow var(--contact-transition);
  width: 100%;
  box-sizing: border-box;
  resize: vertical;
}

.page-contact .contact-form__input::placeholder,
.page-contact .contact-form__textarea::placeholder {
  color: var(--contact-text-secondary);
  opacity: 0.6;
}

.page-contact .contact-form__input:focus,
.page-contact .contact-form__textarea:focus {
  outline: none;
  border-color: var(--contact-accent);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.12);
}

.page-contact .contact-form__textarea {
  min-height: 120px;
  line-height: 1.6;
}

.page-contact .contact-form__submit {
  align-self: flex-start;
  padding: 0.8rem 2.4rem;
  font-family: var(--font-headings, 'Poppins', sans-serif);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.03em;
  border: none;
  border-radius: 8px;
  background: var(--contact-accent);
  color: #0A0F1A;
  cursor: pointer;
  transition: background var(--contact-transition), transform var(--contact-transition), box-shadow var(--contact-transition);
}

.page-contact .contact-form__submit:hover,
.page-contact .contact-form__submit:focus-visible {
  background: #33EAFF;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 229, 255, 0.25);
  outline: none;
}

.page-contact .contact-form__submit:active {
  transform: translateY(0);
}

.page-contact .contact-form__footnote {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.75rem;
  color: var(--contact-text-secondary);
  line-height: 1.5;
  margin: 0;
  opacity: 0.75;
}

/* 支持入口 */
.page-contact .contact-support {
  padding: 3rem 0 4rem;
}

.page-contact .contact-support__title {
  font-family: var(--font-headings, 'Poppins', sans-serif);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--contact-text-primary);
  margin-bottom: 0.8rem;
}

.page-contact .contact-support__desc {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--contact-text-secondary);
  margin: 0 0 2rem;
  max-width: 48ch;
}

.page-contact .contact-support__link {
  color: var(--contact-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--contact-transition), color var(--contact-transition);
}

.page-contact .contact-support__link:hover,
.page-contact .contact-support__link:focus-visible {
  border-bottom-color: var(--contact-accent);
  color: #33EAFF;
  outline: none;
}

.page-contact .contact-support__cards {
  display: grid;
  gap: 1.2rem;
}

.page-contact .contact-support-card {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  background: var(--contact-card-bg);
  border: 1px solid var(--contact-border);
  border-radius: var(--contact-radius);
  padding: 1.5rem;
  transition: border-color var(--contact-transition), box-shadow var(--contact-transition);
}

.page-contact .contact-support-card:hover {
  border-color: rgba(0, 229, 255, 0.2);
  box-shadow: var(--contact-glow);
}

.page-contact .contact-support-card__num {
  font-family: var(--font-numbers, 'JetBrains Mono', monospace);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--contact-accent);
  opacity: 0.5;
  line-height: 1;
  flex-shrink: 0;
  min-width: 1.8rem;
}

.page-contact .contact-support-card__body {
  flex: 1;
  min-width: 0;
}

.page-contact .contact-support-card__heading {
  font-family: var(--font-headings, 'Poppins', sans-serif);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--contact-text-primary);
  margin: 0 0 0.4rem;
}

.page-contact .contact-support-card__text {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.85rem;
  color: var(--contact-text-secondary);
  line-height: 1.6;
  margin: 0 0 0.8rem;
}

.page-contact .contact-support-card__btn {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.8rem;
  padding: 0.4rem 1.2rem;
  border: 1px solid var(--contact-accent);
  color: var(--contact-accent);
  background: transparent;
  border-radius: 6px;
  text-decoration: none;
  display: inline-block;
  transition: background var(--contact-transition), color var(--contact-transition);
}

.page-contact .contact-support-card__btn:hover,
.page-contact .contact-support-card__btn:focus-visible {
  background: rgba(0, 229, 255, 0.1);
  color: #33EAFF;
  outline: none;
}

/* 响应式 —— 桌面端 */
@media (min-width: 768px) {
  .page-contact .contact-hero {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
    padding: 3rem 0 4rem;
  }

  .page-contact .contact-hero__text {
    flex: 1;
    min-width: 0;
  }

  .page-contact .contact-hero__title {
    font-size: 2.8rem;
  }

  .page-contact .contact-hero__visual {
    width: 45%;
    max-width: 540px;
  }

  .page-contact .contact-cards.grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .contact-form-section__inner {
    flex-direction: row;
    align-items: flex-start;
    gap: 3rem;
  }

  .page-contact .contact-form-section__info {
    flex-shrink: 0;
    width: 36%;
    position: sticky;
    top: calc(var(--header-height, 64px) + 2rem);
  }

  .page-contact .contact-form-wrapper {
    flex: 1;
    min-width: 0;
  }

  .page-contact .contact-form {
    padding: 2.5rem;
  }

  .page-contact .contact-support__cards.grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .contact-support-card {
    padding: 1.8rem;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-hero__title {
    font-size: 3.2rem;
  }

  .page-contact .contact-details {
    padding: 4rem 0;
  }

  .page-contact .contact-form-section {
    padding: 4rem 0;
  }

  .page-contact .contact-support {
    padding: 4rem 0 5rem;
  }

  .page-contact .contact-form-section__info {
    width: 32%;
  }
}

/* 极窄屏安全 */
@media (max-width: 420px) {
  .page-contact .contact-hero__title {
    font-size: 1.6rem;
  }

  .page-contact .contact-card {
    padding: 1.5rem 1rem;
  }

  .page-contact .contact-form {
    padding: 1.5rem 1rem;
  }

  .page-contact .contact-form__submit {
    width: 100%;
    text-align: center;
  }

  .page-contact .contact-support-card {
    flex-direction: column;
    gap: 0.8rem;
  }

  .page-contact .contact-support-card__num {
    font-size: 1.2rem;
  }
}

/* 打印优化 */
@media print {
  .page-contact .contact-hero__visual {
    display: none;
  }

  .page-contact .contact-form-section {
    page-break-inside: avoid;
  }

  .page-contact .contact-card::before {
    display: none;
  }

  .page-contact .contact-form__submit {
    background: #333;
    color: #fff;
  }
}