/* =============================================
   page-contact 专属样式
   作用域限定：.page-contact
   ============================================= */
.page-contact {
  --contact-hero-bg: #1E90FF;
  --contact-card-bg: rgba(255,255,255,0.12);
  --contact-card-border: rgba(255,255,255,0.25);
  --contact-icon-orange: #FF6B35;
  --contact-feedback-accent: #FF6B35;
  --contact-feedback-step-bg: #FF6B35;
  --contact-location-line: #E2E8F0;
  --contact-trust-bg: #0A2F44;
  --contact-trust-text: #F8F9FA;
  --contact-breadcrumb-color: #0A2F44;
  --contact-hero-title-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

/* 面包屑
   ======== */
.contact-breadcrumb {
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 20px 16px 8px;
  font-family: var(--caption-font, "Inter", sans-serif);
  font-weight: 300;
  font-size: 0.8rem;
  color: var(--contact-breadcrumb-color, #0A2F44);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.contact-breadcrumb a {
  color: var(--primary-blue, #1E90FF);
  text-decoration: none;
  transition: opacity 0.2s;
}
.contact-breadcrumb a:hover,
.contact-breadcrumb a:focus-visible {
  opacity: 0.7;
  outline: 2px solid var(--accent-orange, #FF6B35);
  outline-offset: 2px;
}
.contact-breadcrumb__sep {
  color: var(--light-gray, #E2E8F0);
  font-size: 0.75rem;
}

/* 首屏框景区
   =========== */
.contact-hero {
  max-width: var(--max-width, 1200px);
  margin: 0 auto 32px;
  padding: 0 16px;
  position: relative;
}
.contact-hero.box-frame {
  border: 2px solid var(--primary-blue, #1E90FF);
  border-radius: 12px;
  background: var(--snow-white, #F8F9FA);
  position: relative;
  overflow: hidden;
}
.contact-hero.box-frame::before {
  content: "◆ 联系 ◆";
  position: absolute;
  top: -1px;
  left: 24px;
  font-family: var(--caption-font, "Inter", sans-serif);
  font-size: 0.65rem;
  font-weight: 300;
  letter-spacing: 0.3em;
  color: var(--primary-blue, #1E90FF);
  background: var(--snow-white, #F8F9FA);
  padding: 0 10px;
  line-height: 1;
  z-index: 2;
}
.contact-hero__inner {
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* 左/上 — 信息区 */
.contact-hero__info {
  background: var(--contact-hero-bg, #1E90FF);
  padding: 40px 28px 36px;
  color: #fff;
  flex: 1 1 45%;
  position: relative;
  z-index: 1;
}
.contact-hero__title {
  font-family: var(--heading-font, "Inter", sans-serif);
  font-weight: 700;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  line-height: 1.15;
  margin: 0 0 8px;
  color: #fff;
  text-shadow: var(--contact-hero-title-shadow, 0 2px 12px rgba(0,0,0,0.08));
  letter-spacing: -0.02em;
}
.contact-hero__subtitle {
  font-family: var(--body-font, "Inter", sans-serif);
  font-weight: 300;
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0 0 28px;
  opacity: 0.92;
  max-width: 420px;
}

/* 联系方式卡片 */
.contact-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--contact-card-bg, rgba(255,255,255,0.12));
  border: 1px solid var(--contact-card-border, rgba(255,255,255,0.25));
  border-radius: 10px;
  padding: 20px 24px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.contact-card__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.contact-card__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  color: var(--contact-icon-orange, #FF6B35);
}
.contact-card__icon svg {
  display: block;
  width: 20px;
  height: 20px;
}
.contact-card__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.contact-card__label {
  font-family: var(--caption-font, "Inter", sans-serif);
  font-weight: 300;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.75;
}
.contact-card__value {
  font-family: var(--body-font, "Inter", sans-serif);
  font-weight: 500;
  font-size: 0.95rem;
  color: #fff;
  text-decoration: none;
  word-break: break-word;
  transition: opacity 0.2s;
}
.contact-card__value:hover,
.contact-card__value:focus-visible {
  opacity: 0.75;
  outline: 2px solid var(--accent-orange, #FF6B35);
  outline-offset: 2px;
  border-radius: 2px;
}
.contact-card__value--plain {
  font-weight: 400;
  opacity: 0.92;
}
.contact-hero__note {
  font-family: var(--caption-font, "Inter", sans-serif);
  font-weight: 300;
  font-size: 0.78rem;
  line-height: 1.6;
  margin: 20px 0 0;
  opacity: 0.85;
  border-left: 2px solid var(--accent-orange, #FF6B35);
  padding-left: 14px;
}

/* 右/下 — 视觉图 */
.contact-hero__visual {
  flex: 1 1 55%;
  position: relative;
  min-height: 280px;
  background: var(--light-gray, #E2E8F0);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.contact-hero__img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  display: block;
}
.contact-hero__visual-credit {
  position: absolute;
  bottom: 12px;
  right: 16px;
  font-family: var(--caption-font, "Inter", sans-serif);
  font-weight: 300;
  font-size: 0.65rem;
  color: #fff;
  background: rgba(10,47,68,0.55);
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.08em;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

/* 数据问题反馈区
   =============== */
.contact-feedback {
  padding: 48px 0 40px;
  background: var(--snow-white, #F8F9FA);
  position: relative;
}
.contact-feedback::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-blue, #1E90FF), var(--accent-orange, #FF6B35));
}
.contact-feedback__inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-feedback__index {
  font-family: var(--data-font, "Courier New", monospace);
  font-weight: 300;
  font-size: 2.8rem;
  line-height: 1;
  color: var(--contact-feedback-accent, #FF6B35);
  opacity: 0.25;
  letter-spacing: -0.04em;
}
.contact-feedback__title {
  font-family: var(--heading-font, "Inter", sans-serif);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.5vw, 2rem);
  color: var(--dark-blue, #0A2F44);
  margin: 0 0 12px;
  line-height: 1.2;
}
.contact-feedback__desc {
  font-family: var(--body-font, "Inter", sans-serif);
  font-weight: 400;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--dark-blue, #0A2F44);
  margin: 0 0 20px;
  max-width: 640px;
}
.contact-feedback__steps {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.contact-feedback__step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-family: var(--body-font, "Inter", sans-serif);
  font-weight: 400;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--dark-blue, #0A2F44);
}
.contact-feedback__step-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--contact-feedback-step-bg, #FF6B35);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--data-font, "Courier New", monospace);
  font-weight: 500;
  font-size: 0.8rem;
  margin-top: 2px;
}
.contact-feedback__mail-link {
  color: var(--primary-blue, #1E90FF);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
  transition: color 0.2s;
}
.contact-feedback__mail-link:hover,
.contact-feedback__mail-link:focus-visible {
  color: var(--accent-orange, #FF6B35);
  outline: 2px solid var(--accent-orange, #FF6B35);
  outline-offset: 2px;
  border-radius: 2px;
}
.contact-feedback__more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  margin-top: 8px;
}

/* 办公位置区
   =========== */
.contact-location {
  padding: 44px 0 48px;
  background: #fff;
}
.contact-location__inner {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.contact-location__info {
  position: relative;
}
.contact-location__index {
  font-family: var(--data-font, "Courier New", monospace);
  font-weight: 300;
  font-size: 2.4rem;
  line-height: 1;
  color: var(--primary-blue, #1E90FF);
  opacity: 0.15;
  letter-spacing: -0.04em;
  margin-bottom: 4px;
}
.contact-location__title {
  font-family: var(--heading-font, "Inter", sans-serif);
  font-weight: 700;
  font-size: clamp(1.3rem, 3.2vw, 1.8rem);
  color: var(--dark-blue, #0A2F44);
  margin: 0 0 16px;
  line-height: 1.2;
}
.contact-location__address {
  font-family: var(--body-font, "Inter", sans-serif);
  font-weight: 500;
  font-size: 1.05rem;
  color: var(--primary-blue, #1E90FF);
  margin: 0 0 12px;
  padding: 12px 16px;
  background: var(--snow-white, #F8F9FA);
  border-left: 4px solid var(--primary-blue, #1E90FF);
  border-radius: 0 6px 6px 0;
}
.contact-location__note {
  font-family: var(--caption-font, "Inter", sans-serif);
  font-weight: 300;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--dark-blue, #0A2F44);
  opacity: 0.7;
  margin: 0 0 20px;
  max-width: 500px;
}
.contact-location__map-placeholder {
  display: inline-flex;
  flex-direction: column;
  gap: 8px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--contact-location-line, #E2E8F0);
  background: var(--snow-white, #F8F9FA);
}
.contact-location__map-img {
  width: 100%;
  max-width: 200px;
  height: auto;
  display: block;
  object-fit: cover;
}
.contact-location__map-caption {
  font-family: var(--caption-font, "Inter", sans-serif);
  font-weight: 300;
  font-size: 0.7rem;
  color: var(--dark-blue, #0A2F44);
  opacity: 0.6;
  padding: 0 12px 10px;
  letter-spacing: 0.04em;
}
.contact-location__context {
  border-top: 1px solid var(--contact-location-line, #E2E8F0);
  padding-top: 28px;
}
.contact-location__context-text {
  font-family: var(--body-font, "Inter", sans-serif);
  font-weight: 400;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--dark-blue, #0A2F44);
  margin: 0 0 20px;
  max-width: 520px;
}
.contact-location__about-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
}

/* 信任声明
   ======== */
.contact-trust {
  background: var(--contact-trust-bg, #0A2F44);
  padding: 28px 0;
}
.contact-trust__text {
  font-family: var(--caption-font, "Inter", sans-serif);
  font-weight: 300;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--contact-trust-text, #F8F9FA);
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
  letter-spacing: 0.02em;
}

/* =============================================
   响应式：平板 768px 起
   ============================================= */
@media (min-width: 768px) {
  .contact-breadcrumb {
    padding: 24px 32px 12px;
  }

  .contact-hero {
    padding: 0 32px;
    margin-bottom: 48px;
  }
  .contact-hero__inner {
    flex-direction: row;
  }
  .contact-hero__info {
    padding: 52px 40px 44px;
  }
  .contact-hero__visual {
    min-height: 400px;
  }
  .contact-hero__title {
    font-size: clamp(2rem, 4vw, 3rem);
  }
  .contact-card {
    padding: 24px 28px;
  }

  .contact-feedback {
    padding: 60px 0 52px;
  }
  .contact-feedback__inner {
    flex-direction: row;
    gap: 40px;
    align-items: flex-start;
  }
  .contact-feedback__index {
    font-size: 3.6rem;
    flex-shrink: 0;
    width: 80px;
  }
  .contact-feedback__steps {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 16px;
  }
  .contact-feedback__step {
    flex: 1 1 200px;
  }

  .contact-location {
    padding: 56px 0 60px;
  }
  .contact-location__inner {
    flex-direction: row;
    gap: 48px;
    align-items: flex-start;
  }
  .contact-location__info {
    flex: 1 1 55%;
  }
  .contact-location__context {
    flex: 1 1 45%;
    border-top: none;
    padding-top: 0;
    padding-left: 32px;
    border-left: 1px solid var(--contact-location-line, #E2E8F0);
  }
  .contact-location__index {
    font-size: 3rem;
  }
  .contact-location__map-img {
    max-width: 200px;
  }
}

/* =============================================
   响应式：桌面 1024px 起
   ============================================= */
@media (min-width: 1024px) {
  .contact-breadcrumb {
    padding: 28px 48px 16px;
  }

  .contact-hero {
    padding: 0 48px;
    margin-bottom: 60px;
  }
  .contact-hero__info {
    padding: 64px 52px 52px;
  }
  .contact-hero__visual {
    min-height: 500px;
  }
  .contact-hero__title {
    font-size: 3rem;
  }
  .contact-card {
    padding: 28px 32px;
  }

  .contact-feedback {
    padding: 72px 0 60px;
  }
  .contact-feedback__index {
    font-size: 4rem;
    width: 100px;
  }
  .contact-feedback__steps {
    gap: 24px;
  }
  .contact-feedback__step {
    flex: 1 1 220px;
  }

  .contact-location {
    padding: 68px 0 72px;
  }
  .contact-location__inner {
    gap: 64px;
  }
  .contact-location__context {
    padding-left: 48px;
  }
  .contact-location__title {
    font-size: 2rem;
  }
}

/* =============================================
   小屏适配：防溢出
   ============================================= */
@media (max-width: 400px) {
  .contact-hero__info {
    padding: 28px 16px 24px;
  }
  .contact-hero__title {
    font-size: 1.5rem;
  }
  .contact-card {
    padding: 16px 18px;
  }
  .contact-card__value {
    font-size: 0.85rem;
  }
  .contact-feedback {
    padding: 32px 0 28px;
  }
  .contact-location {
    padding: 32px 0 36px;
  }
  .contact-location__address {
    font-size: 0.92rem;
    padding: 10px 14px;
  }
  .contact-trust__text {
    font-size: 0.75rem;
  }
}

/* 键盘焦点 & 渐进增强 */
.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--accent-orange, #FF6B35);
  outline-offset: 2px;
  border-radius: 2px;
}
.page-contact .btn:focus-visible {
  outline: 2px solid var(--accent-orange, #FF6B35);
  outline-offset: 3px;
}