/* ===== 页面作用域：支持中心 ===== */
.page-faq {
  --faq-orange: #FF6B35;
  --faq-blue: #0077B6;
  --faq-blue-light: #E3F2F9;
  --faq-blue-pale: rgba(0,119,182,0.06);
  --faq-deep: #2B2D42;
  --faq-cream: #F8F9FA;
  --faq-border: rgba(0,119,182,0.12);
  --faq-shadow: 0 2px 8px rgba(43,45,66,0.06), 0 1px 2px rgba(43,45,66,0.04);
  --faq-radius: 8px;
  --faq-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- 布局容器 ---- */
.page-faq .container {
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 0 var(--space-md, 1.5rem);
}

/* ---- 面包屑 ---- */
.page-faq .breadcrumb {
  padding: var(--space-lg, 2rem) 0 var(--space-sm, 1rem);
  font-family: var(--font-body, 'Nunito', sans-serif);
  font-size: 0.85rem;
  color: var(--clr-text-light, #5a5d6e);
  letter-spacing: 0.01em;
}

.page-faq .breadcrumb a {
  color: var(--faq-blue);
  text-decoration: none;
  transition: color var(--faq-transition);
}

.page-faq .breadcrumb a:hover {
  color: var(--faq-orange);
}

.page-faq .breadcrumb span {
  margin: 0 0.35rem;
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--faq-deep);
  font-weight: 600;
}

/* ---- 页面标题区 ---- */
.page-faq .faq__hero {
  padding: var(--space-lg, 2rem) 0 var(--space-xl, 3rem);
  border-bottom: 1px solid var(--faq-border);
  margin-bottom: var(--space-xl, 3rem);
}

.page-faq .faq__title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  color: var(--faq-deep);
  margin: 0 0 var(--space-xs, 0.5rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.page-faq .faq__subtitle {
  font-family: var(--font-body, 'Nunito', sans-serif);
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--clr-text-light, #5a5d6e);
  margin: 0 0 var(--space-lg, 2rem);
  max-width: 540px;
  line-height: 1.5;
}

/* ---- 搜索条 ---- */
.page-faq .faq__search {
  position: relative;
  max-width: 480px;
}

.page-faq .faq__search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--faq-blue);
  opacity: 0.6;
  pointer-events: none;
  transition: opacity var(--faq-transition);
}

.page-faq .faq__search-input {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  font-family: var(--font-body, 'Nunito', sans-serif);
  font-size: 0.95rem;
  color: var(--faq-deep);
  background: var(--faq-cream);
  border: 1.5px solid var(--faq-border);
  border-radius: var(--faq-radius);
  outline: none;
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
  -webkit-appearance: none;
  appearance: none;
}

.page-faq .faq__search-input:focus {
  border-color: var(--faq-blue);
  box-shadow: 0 0 0 3px rgba(0,119,182,0.15);
  background: var(--clr-white, #FFFFFF);
}

.page-faq .faq__search-input::placeholder {
  color: #9a9caa;
  opacity: 1;
}

/* ---- FAQ 折叠列表 ---- */
.page-faq .faq__section {
  margin-bottom: var(--space-2xl, 4rem);
}

.page-faq .faq__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm, 1rem);
}

/* 每个折叠项 */
.page-faq .faq__item {
  background: var(--clr-white, #FFFFFF);
  border: 1px solid var(--faq-border);
  border-radius: var(--faq-radius);
  box-shadow: var(--faq-shadow);
  overflow: hidden;
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
}

.page-faq .faq__item[open] {
  border-color: var(--faq-blue);
  box-shadow: 0 4px 16px rgba(0,119,182,0.08), 0 2px 4px rgba(43,45,66,0.04);
}

/* 问题条 */
.page-faq .faq__question {
  display: flex;
  align-items: center;
  gap: var(--space-sm, 1rem);
  padding: var(--space-md, 1.5rem);
  cursor: pointer;
  list-style: none;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  transition: background var(--faq-transition);
}

.page-faq .faq__question::-webkit-details-marker {
  display: none;
}

.page-faq .faq__question:hover {
  background: var(--faq-blue-pale);
}

.page-faq .faq__item[open] .faq__question {
  background: var(--faq-blue-pale);
}

/* 问题图标 */
.page-faq .faq__q-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--faq-blue-light);
  padding: 6px;
  box-sizing: border-box;
}

/* 问题文字 */
.page-faq .faq__q-text {
  flex: 1;
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: clamp(0.95rem, 1.4vw, 1.1rem);
  font-weight: 600;
  color: var(--faq-deep);
  line-height: 1.4;
}

/* 箭头 */
.page-faq .faq__q-arrow {
  flex-shrink: 0;
  color: var(--faq-blue);
  transition: transform var(--faq-transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-faq .faq__item[open] .faq__q-arrow {
  transform: rotate(180deg);
}

/* 答案区域 */
.page-faq .faq__answer {
  padding: 0 var(--space-md, 1.5rem) var(--space-md, 1.5rem);
  background: var(--faq-blue-light);
  border-top: 1px solid var(--faq-border);
  animation: faq-fade-in 0.3s ease;
}

@keyframes faq-fade-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq__answer p {
  font-family: var(--font-body, 'Nunito', sans-serif);
  font-size: clamp(0.9rem, 1.2vw, 1rem);
  color: var(--faq-deep);
  line-height: 1.7;
  margin: 0;
  max-width: 680px;
}

.page-faq .faq__answer a {
  color: var(--faq-blue);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
  transition: color var(--faq-transition);
}

.page-faq .faq__answer a:hover {
  color: var(--faq-orange);
}

/* ---- 联系客服模块 ---- */
.page-faq .faq__contact {
  position: relative;
  margin-bottom: var(--space-2xl, 4rem);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--clr-white, #FFFFFF);
  border: 1px solid var(--faq-border);
  box-shadow: var(--faq-shadow);
  display: flex;
  flex-direction: column;
}

@media (min-width: 640px) {
  .page-faq .faq__contact {
    flex-direction: row;
    align-items: stretch;
  }
}

.page-faq .faq__contact-bg {
  position: relative;
  width: 100%;
  min-height: 140px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--faq-blue-light), #D4EAF7);
}

@media (min-width: 640px) {
  .page-faq .faq__contact-bg {
    width: 40%;
    min-height: auto;
  }
}

.page-faq .faq__contact-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.6;
}

.page-faq .faq__contact-content {
  padding: var(--space-lg, 2rem) var(--space-md, 1.5rem);
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-faq .faq__contact-title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: clamp(1.3rem, 2.5vw, 1.6rem);
  font-weight: 700;
  color: var(--faq-deep);
  margin: 0 0 var(--space-xs, 0.5rem);
}

.page-faq .faq__contact-desc {
  font-family: var(--font-body, 'Nunito', sans-serif);
  font-size: 0.9rem;
  color: var(--clr-text-light, #5a5d6e);
  margin: 0 0 var(--space-md, 1.5rem);
  line-height: 1.5;
}

.page-faq .faq__contact-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-md, 1.5rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm, 1rem);
}

.page-faq .faq__contact-list li {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm, 1rem);
  font-family: var(--font-body, 'Nunito', sans-serif);
  font-size: 0.95rem;
  line-height: 1.5;
}

.page-faq .faq__contact-label {
  flex-shrink: 0;
  font-weight: 700;
  color: var(--faq-blue);
  min-width: 3.2em;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.page-faq .faq__contact-value {
  color: var(--faq-deep);
}

.page-faq .faq__contact-link {
  color: var(--faq-deep);
  text-decoration: none;
  transition: color var(--faq-transition);
}

.page-faq .faq__contact-link:hover {
  color: var(--faq-orange);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* 按钮 */
.page-faq .btn--primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.6rem;
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--clr-white, #FFFFFF);
  background: var(--faq-blue);
  border: none;
  border-radius: var(--faq-radius);
  text-decoration: none;
  transition: background var(--faq-transition), transform var(--faq-transition);
  align-self: flex-start;
}

.page-faq .btn--primary:hover {
  background: var(--clr-primary-dark, #023E8A);
  transform: translateY(-1px);
}

.page-faq .btn--primary:active {
  transform: translateY(0);
}

/* ---- 响应式 ---- */
@media (max-width: 639px) {
  .page-faq .container {
    padding: 0 var(--space-sm, 1rem);
  }

  .page-faq .faq__hero {
    padding: var(--space-md, 1.5rem) 0 var(--space-lg, 2rem);
    margin-bottom: var(--space-lg, 2rem);
  }

  .page-faq .faq__question {
    padding: var(--space-sm, 1rem) var(--space-md, 1.5rem);
    gap: var(--space-sm, 1rem);
  }

  .page-faq .faq__answer {
    padding: 0 var(--space-md, 1.5rem) var(--space-sm, 1rem);
  }

  .page-faq .faq__q-icon {
    width: 32px;
    height: 32px;
    padding: 4px;
  }

  .page-faq .faq__contact-content {
    padding: var(--space-md, 1.5rem) var(--space-sm, 1rem);
  }

  .page-faq .faq__contact-list li {
    flex-direction: column;
    gap: 0.15rem;
  }

  .page-faq .faq__contact-label {
    min-width: auto;
  }

  .page-faq .btn--primary {
    width: 100%;
    text-align: center;
  }
}

/* 桌面微调 */
@media (min-width: 1024px) {
  .page-faq .faq__hero {
    padding: var(--space-xl, 3rem) 0 var(--space-2xl, 4rem);
  }

  .page-faq .faq__question {
    padding: var(--space-lg, 2rem) var(--space-xl, 3rem);
  }

  .page-faq .faq__answer {
    padding: 0 var(--space-xl, 3rem) var(--space-lg, 2rem);
  }

  .page-faq .faq__contact-content {
    padding: var(--space-xl, 3rem);
  }
}

/* ---- 无 JS 渐进增强：details 默认关闭，open 时显示答案 ---- */
.page-faq .faq__answer {
  /* 动画仅在有open时触发，无JS时details原生控制显示/隐藏 */
}

/* ---- 搜索高亮预留（JS 渐进增强） ---- */
.page-faq .faq__search-input:not(:placeholder-shown) ~ .faq__list .faq__item {
  /* 搜索过滤由JS实现，此处仅预留样式钩子 */
}

/* ---- 辅助功能 ---- */
.page-faq .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}