/* ===== Page FAQ 专属样式 ===== */
.page-faq {
  --faq-gap: 2rem;
  --faq-radius: 20px;
  --faq-index-width: 220px;
  --faq-arrow-size: 24px;
}

/* 面包屑 */
.page-faq .breadcrumb {
  list-style: none;
  display: flex;
  gap: 0.5rem;
  padding: 1rem 0;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-neutral-dark);
}
.page-faq .breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
}
.page-faq .breadcrumb a:hover {
  text-decoration: underline;
}
.page-faq .breadcrumb li[aria-current] {
  color: var(--color-secondary);
  font-weight: 600;
}
.page-faq .breadcrumb li + li::before {
  content: "›";
  margin-right: 0.5rem;
  color: var(--color-accent);
}

/* 首屏简介 */
.page-faq .faq-hero {
  padding: 2rem 0 1rem;
}
.page-faq .faq-hero__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
}
.page-faq .faq-hero__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-style: italic;
  font-size: 2.5rem;
  color: var(--color-primary);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}
.page-faq .faq-hero__desc {
  font-family: var(--font-body);
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--color-neutral-dark);
  max-width: 720px;
}

/* 布局：左侧索引 + 右侧答案 */
.page-faq .faq-layout {
  display: flex;
  gap: var(--faq-gap);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1rem 3rem;
  align-items: flex-start;
}

/* 左侧索引 */
.page-faq .faq-index {
  flex: 0 0 var(--faq-index-width);
  position: sticky;
  top: calc(var(--header-height) + 1rem);
  background: var(--color-neutral-light);
  border-radius: var(--faq-radius);
  padding: 1.5rem 1rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}
.page-faq .faq-index__heading {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-primary);
}
.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-faq .faq-index__link {
  display: block;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-neutral-dark);
  text-decoration: none;
  border-radius: 8px;
  transition: background 0.2s, color 0.2s;
}
.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus {
  background: var(--color-primary);
  color: #fff;
}

/* 右侧答案区域 */
.page-faq .faq-answers {
  flex: 1;
  min-width: 0;
}

/* 每个问题区块 */
.page-faq .faq-section {
  margin-bottom: 2.5rem;
  background: #fff;
  border-radius: var(--faq-radius);
  padding: 1.5rem 1.5rem 1rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.page-faq .faq-section__heading {
  font-family: var(--font-heading);
  font-weight: 700;
  font-style: italic;
  font-size: 1.5rem;
  color: var(--color-secondary);
  margin: 0 0 1.25rem;
  padding-left: 0.5rem;
  border-left: 4px solid var(--color-accent);
}

/* 手风琴列表 */
.page-faq .faq-accordion {
  margin: 0;
  padding: 0;
}
.page-faq .faq-item {
  border-bottom: 1px solid #e0e0e0;
  margin-bottom: 0.25rem;
}
.page-faq .faq-item:last-child {
  border-bottom: none;
}

/* 问题按钮 */
.page-faq .faq-item__q {
  margin: 0;
}
.page-faq .faq-item__btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 1rem 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-neutral-dark);
  text-align: left;
  border-radius: 8px;
  transition: background 0.15s, color 0.15s;
}
.page-faq .faq-item__btn:hover,
.page-faq .faq-item__btn:focus-visible {
  background: var(--color-neutral-light);
  color: var(--color-primary);
}
.page-faq .faq-item__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.page-faq .faq-item__text {
  flex: 1;
}
.page-faq .faq-item__icon {
  flex-shrink: 0;
  width: var(--faq-arrow-size);
  height: var(--faq-arrow-size);
  position: relative;
  transition: transform 0.3s;
}
.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--color-accent);
  border-radius: 2px;
}
.page-faq .faq-item__icon::before {
  top: 50%;
  left: 2px;
  right: 2px;
  height: 3px;
  transform: translateY(-50%);
}
.page-faq .faq-item__icon::after {
  top: 2px;
  bottom: 2px;
  left: 50%;
  width: 3px;
  transform: translateX(-50%);
  transition: opacity 0.3s;
}
/* 展开时隐藏竖线，旋转加号变减号 */
.page-faq .faq-item__btn[aria-expanded="true"] .faq-item__icon {
  transform: rotate(45deg);
}

/* 答案区域 */
.page-faq .faq-item__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 0.5rem;
  color: var(--color-neutral-dark);
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.6;
}
.page-faq .faq-item__a[aria-hidden="false"] {
  max-height: 500px; /* 足够展开 */
  padding: 0.5rem 0.5rem 1rem;
}
.page-faq .faq-item__a p {
  margin: 0.5rem 0;
}

/* 图片 */
.page-faq .faq-item__image-wrapper {
  margin-top: 0.75rem;
}
.page-faq .faq-item__img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  display: block;
}

/* 更多链接 */
.page-faq .faq-section__more {
  margin-top: 1rem;
  text-align: right;
}
.page-faq .kiwi-btn {
  display: inline-block;
  padding: 0.6rem 1.5rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: 30px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
  border: none;
  cursor: pointer;
}
.page-faq .kiwi-btn:hover,
.page-faq .kiwi-btn:focus {
  background: var(--color-accent);
  color: #1a1a1a;
  transform: translateY(-2px);
}
.page-faq .kiwi-btn--outline {
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}
.page-faq .kiwi-btn--outline:hover {
  background: var(--color-primary);
  color: #fff;
}

/* 返回首页容器 */
.page-faq .faq-back {
  text-align: center;
  padding: 1rem 0 3rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ===== 移动端优先 (窄屏) ===== */
@media (max-width: 768px) {
  .page-faq .faq-layout {
    flex-direction: column;
  }
  .page-faq .faq-index {
    flex: none;
    width: 100%;
    position: static;
    margin-bottom: 1.5rem;
  }
  .page-faq .faq-index__list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  .page-faq .faq-index__link {
    padding: 0.4rem 1rem;
    border-radius: 20px;
    background: var(--color-neutral-light);
    border: 1px solid var(--color-primary);
  }
  .page-faq .faq-hero__title {
    font-size: 1.8rem;
  }
  .page-faq .faq-section {
    padding: 1rem;
  }
  .page-faq .faq-section__heading {
    font-size: 1.2rem;
  }
  .page-faq .faq-item__btn {
    font-size: 0.95rem;
    padding: 0.75rem 0.25rem;
  }
  .page-faq .faq-item__num {
    width: 24px;
    height: 24px;
    font-size: 0.8rem;
  }
}

/* 桌面 narrow 中间状态 */
@media (min-width: 769px) and (max-width: 1024px) {
  .page-faq .faq-index {
    flex-basis: 180px;
  }
}

/* 滚动显现动画 (与全局一致) */
.page-faq .kiwi-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.page-faq .kiwi-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .page-faq .kiwi-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}