.page-faq {
  --faq-line: var(--paper-200);
  --faq-card: #ffffff;
  background: var(--paper-50);
  color: var(--text-dark);
  padding-bottom: 72px;
}

.page-faq a {
  color: inherit;
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

/* —— 首屏 —— */
.page-faq .faq-hero {
  padding: 20px 0 36px;
  position: relative;
}

.page-faq .faq-hero::after {
  content: "";
  display: block;
  height: 1px;
  margin-top: 32px;
  background: repeating-linear-gradient(90deg, var(--ink-700) 0 12px, transparent 12px 24px);
  opacity: .35;
}

.page-faq .faq-hero .eyebrow {
  color: var(--amber-700);
  letter-spacing: .18em;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 7vw, 54px);
  line-height: 1.08;
  letter-spacing: -.02em;
  font-weight: 700;
  margin: 14px 0 16px;
  max-width: 18ch;
}

.page-faq .faq-hero .lede {
  max-width: 40em;
  font-size: 16px;
  line-height: 1.75;
  color: #2c4438;
  margin: 0;
}

.page-faq .faq-meta {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-meta li {
  background: var(--faq-card);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-data);
  padding: 8px 14px;
  font-size: 13px;
  color: #2c4438;
}

.page-faq .faq-meta .mono {
  color: var(--ink-950);
  font-weight: 700;
  margin-right: 2px;
}

/* —— 两栏骨架 —— */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

/* —— 目录 —— */
.page-faq .faq-toc {
  background: var(--ink-900);
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-content);
  padding: 18px;
  color: var(--paper-50);
  min-width: 0;
}

.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--pulse-200);
  text-transform: uppercase;
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-toc__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-toc__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 8px 12px;
  border: 1px solid var(--ink-700);
  border-radius: 999px;
  font-size: 13px;
  line-height: 1.2;
  text-decoration: none;
  transition: background .16s ease, color .16s ease, border-color .16s ease;
}

.page-faq .faq-toc__list .mono {
  font-size: 11px;
  color: var(--amber-500);
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  background: rgba(43, 232, 165, .12);
  border-color: var(--pulse-500);
  color: var(--pulse-200);
  outline: none;
}

.page-faq .faq-toc__foot {
  display: none;
}

/* —— 筛选工具条 —— */
.page-faq .faq-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 18px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-tools .chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-tools__status {
  font-size: 12px;
  color: #4d6a5e;
  margin: 0;
}

/* —— 分组 —— */
.page-faq .faq-group {
  margin-bottom: 52px;
  scroll-margin-top: 88px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink-950);
  margin-bottom: 14px;
}

.page-faq .faq-group__num {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--amber-700);
}

.page-faq .faq-group__head .h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: -.01em;
  color: var(--ink-950);
}

.page-faq .faq-group__intro {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.75;
  color: #3a564a;
  max-width: 44em;
}

/* —— 图片 —— */
.page-faq .faq-figure {
  margin: 0 0 20px;
}

.page-faq .faq-figure .media__img {
  width: 100%;
  display: block;
  border-radius: var(--radius-content);
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-faq .faq-figure .media__caption {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: .04em;
  color: #55705f;
}

/* —— 手风琴 —— */
.page-faq .faq-item {
  background: var(--faq-card);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-data);
  margin-bottom: 10px;
  transition: border-color .16s ease, box-shadow .16s ease;
}

.page-faq .faq-item:hover {
  border-color: #b9ccc1;
}

.page-faq .faq-item[open] {
  border-color: var(--ink-700);
  box-shadow: 0 2px 0 0 rgba(18, 67, 58, .08);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink-950);
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--amber-700);
  outline-offset: -2px;
  border-radius: var(--radius-data);
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__icon {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: 8px;
  border-right: 2px solid var(--ink-700);
  border-bottom: 2px solid var(--ink-700);
  transform: rotate(45deg);
  transition: transform .2s ease, border-color .2s ease;
}

.page-faq .faq-item[open] .faq-item__icon {
  transform: rotate(-135deg);
  border-color: var(--amber-700);
}

.page-faq .faq-item__body {
  padding: 0 18px 18px;
}

.page-faq .faq-item__body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: #253d33;
}

.page-faq .faq-item[open] .faq-item__body {
  animation: faq-reveal-faq .22s ease-out both;
}

@keyframes faq-reveal-faq {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* —— 操作提示条 —— */
.page-faq .faq-hint {
  margin: 0;
  border-left: 3px solid var(--amber-700);
  background: rgba(255, 174, 59, .1);
  border-radius: 0 var(--radius-data) var(--radius-data) 0;
  padding: 8px 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: #4a3508;
  word-break: break-word;
}

/* —— 联系区 —— */
.page-faq .faq-help {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  background: var(--ink-900);
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-content);
  padding: 22px;
  color: var(--paper-50);
}

.page-faq .faq-help__label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--pulse-200);
}

.page-faq .faq-help__value {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--amber-500);
  word-break: break-all;
}

.page-faq .faq-help__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #cbe3d9;
}

.page-faq .faq-help__more {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: #3a564a;
}

.page-faq .faq-help__more a {
  color: var(--ink-950);
  text-decoration: underline;
  text-decoration-color: var(--amber-700);
  text-underline-offset: 3px;
}

/* —— 平板及以上 —— */
@media (min-width: 720px) {
  .page-faq .faq-help {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    padding: 28px;
  }

  .page-faq .faq-item summary {
    font-size: 17px;
    padding: 18px 22px;
  }

  .page-faq .faq-item__body {
    padding: 0 22px 20px;
  }

  .page-faq .faq-group__head .h2 {
    font-size: 28px;
  }
}

/* —— 桌面：左目录 + 右问答 —— */
@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: 272px minmax(0, 1fr);
    gap: 40px;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 24px;
    padding: 22px 20px;
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    overflow: visible;
    gap: 4px;
    padding-bottom: 0;
  }

  .page-faq .faq-toc__list a {
    width: 100%;
    border-radius: var(--radius-data);
    border-color: transparent;
    padding: 10px 12px;
    font-size: 14px;
  }

  .page-faq .faq-toc__foot {
    display: block;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--ink-700);
  }

  .page-faq .faq-toc__foot p {
    margin: 0 0 10px;
    font-size: 13px;
    color: var(--text-mute);
  }

  .page-faq .faq-hero {
    padding-top: 32px;
  }

  .page-faq .faq-tools {
    position: sticky;
    top: 0;
    z-index: 3;
    background: var(--paper-50);
    padding-top: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-item__body,
  .page-faq .faq-item__icon,
  .page-faq .faq-toc__list a {
    animation: none;
    transition: none;
  }
}