.page-faq {
  --faq-rail-w: 236px;
  background: var(--paper);
  color: var(--text-900);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* 面包屑 */
.page-faq .page-faq__crumb {
  padding-top: 28px;
}
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--slate-500);
}
.page-faq .breadcrumb a {
  color: var(--slate-500);
  text-decoration: none;
  transition: color var(--dur-1) var(--ease);
}
.page-faq .breadcrumb a:hover {
  color: var(--brand-600);
}
.page-faq .breadcrumb__sep {
  color: var(--slate-300);
}

/* 英雄区 */
.page-faq .page-faq__hero {
  padding-top: 20px;
  padding-bottom: 0;
}
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}
.page-faq .faq-hero__text h1 {
  font-size: clamp(26px, 5.4vw, 42px);
  line-height: 1.22;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin: 12px 0 18px;
  color: var(--text-900);
}
.page-faq .faq-hero__lede {
  font-size: 16px;
  line-height: 1.78;
  color: var(--slate-500);
  max-width: 48ch;
}
.page-faq .faq-hero__media {
  border-radius: var(--radius-l);
  border: 1px solid var(--line-soft);
  margin: 0;
}
.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* 主体双栏 */
.page-faq .page-faq__body {
  padding-top: 40px;
}
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

/* 左侧栏 */
.page-faq .faq-rail {
  display: grid;
  gap: 20px;
}
.page-faq .faq-toc__heading {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate-500);
  margin-bottom: 10px;
}
.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 4px;
}
.page-faq .faq-toc__list::-webkit-scrollbar {
  display: none;
}
.page-faq .faq-toc__list li {
  flex: 0 0 auto;
}
.page-faq .faq-toc__list .toc__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--mist-100);
  color: var(--slate-500);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  border-left: 2px solid transparent;
  transition: background var(--dur-1) var(--ease), color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}
.page-faq .faq-toc__list .toc__link:hover {
  color: var(--text-900);
}
.page-faq .faq-toc__list .toc__link[aria-current="true"] {
  background: var(--brand-100);
  color: var(--brand-600);
  font-weight: 600;
}
.page-faq .faq-toc__num {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--slate-300);
}
.page-faq .faq-toc__list .toc__link[aria-current="true"] .faq-toc__num {
  color: var(--brand-400);
}
.page-faq .faq-note {
  display: none;
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--brand-600);
  border-radius: var(--radius-m);
  background: var(--mist-100);
}
.page-faq .faq-note__title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-900);
  margin-bottom: 6px;
}
.page-faq .faq-note__text {
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-500);
}

/* 过滤条 */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 28px;
}
.page-faq .faq-filter .filter-chip {
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line-mid);
  background: var(--paper);
  color: var(--slate-500);
  cursor: pointer;
  transition: color var(--dur-1) var(--ease), background var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}
.page-faq .faq-filter .filter-chip:hover {
  color: var(--brand-600);
  border-color: var(--brand-400);
}
.page-faq .faq-filter .filter-chip[aria-pressed="true"] {
  background: var(--brand-600);
  border-color: var(--brand-600);
  color: var(--paper);
}

/* 分组 */
.page-faq .faq-group {
  scroll-margin-top: 84px;
}
.page-faq .faq-group + .faq-group {
  margin-top: 52px;
}
.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 4px 14px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--text-900);
  margin-bottom: 4px;
}
.page-faq .faq-group__index {
  grid-row: 1 / 3;
  align-self: start;
  padding-top: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--brand-600);
}
.page-faq .faq-group__title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--text-900);
}
.page-faq .faq-group__lede {
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate-500);
}
.page-faq .faq-group__figure {
  margin: 18px 0 4px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line-soft);
  overflow: hidden;
  background: var(--mist-100);
}
.page-faq .faq-group__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* 手风琴条目 */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line-soft);
  transition: background var(--dur-2) var(--ease);
}
.page-faq .faq-item[hidden] {
  display: none;
}
.page-faq .faq-item:has(.accordion__panel[data-open="true"]) {
  background: var(--paper);
}
.page-faq .faq-item:not(:has(.accordion__panel[data-open="true"])) {
  background: var(--mist-100);
}
.page-faq .faq-q {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}
.page-faq .accordion__trigger {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 16px;
  background: none;
  border: 0;
  text-align: left;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: 0.01em;
  color: var(--text-900);
  cursor: pointer;
  transition: color var(--dur-1) var(--ease);
}
.page-faq .accordion__trigger:hover {
  color: var(--brand-600);
}
.page-faq .accordion__trigger:focus-visible {
  outline: 2px solid var(--brand-400);
  outline-offset: -2px;
}
.page-faq .faq-q__text {
  display: inline-flex;
  align-items: flex-start;
  gap: 8px;
}
.page-faq .faq-ok {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  border-radius: 50%;
  background: rgba(15, 176, 138, 0.14);
  color: var(--teal-700);
  font-size: 12px;
  line-height: 1;
  font-weight: 700;
}
.page-faq .accordion__icon {
  position: relative;
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
  margin-top: 5px;
}
.page-faq .accordion__icon::before,
.page-faq .accordion__icon::after {
  content: "";
  position: absolute;
  background: var(--slate-500);
  transition: transform var(--dur-2) var(--ease), background var(--dur-1) var(--ease);
}
.page-faq .accordion__icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 1.5px;
  transform: translateY(-50%);
}
.page-faq .accordion__icon::after {
  left: 50%;
  top: 0;
  width: 1.5px;
  height: 100%;
  transform: translateX(-50%);
}
.page-faq .accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}
.page-faq .accordion__trigger[aria-expanded="true"] .accordion__icon::before {
  background: var(--brand-600);
}
.page-faq .accordion__panel {
  overflow: hidden;
  transition: height var(--dur-2) var(--ease);
}
.page-faq .accordion__panel[data-open="false"] {
  height: 0;
}
.page-faq .accordion__body {
  padding: 0 16px 20px;
}
.page-faq .accordion__body p {
  font-size: 15px;
  line-height: 1.78;
  color: var(--slate-500);
  max-width: 68ch;
}
.page-faq .accordion__body p + p {
  margin-top: 10px;
}
.page-faq .accordion__body a {
  color: var(--brand-600);
  text-decoration: none;
  border-bottom: 1px solid var(--brand-100);
  transition: border-color var(--dur-1) var(--ease);
}
.page-faq .accordion__body a:hover {
  border-bottom-color: var(--brand-600);
}

/* 仍未解决 */
.page-faq .faq-contact {
  margin: 24px 0 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  overflow: hidden;
}
.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  background: var(--paper);
  padding: 14px 18px;
}
.page-faq .faq-contact__label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate-500);
}
.page-faq .faq-contact__value {
  font-size: 15px;
  color: var(--text-900);
  word-break: break-all;
}
.page-faq .faq-contact__value.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  font-weight: 500;
}
.page-faq .faq-contact__note {
  margin-top: 18px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate-500);
}
.page-faq .faq-contact__note a {
  color: var(--brand-600);
  text-decoration: none;
  border-bottom: 1px solid var(--brand-100);
}
.page-faq .faq-contact__note a:hover {
  border-bottom-color: var(--brand-600);
}

/* 相关阅读 */
.page-faq .faq-read-section .section-title,
.page-faq .faq-read-section .section-lede {
  color: var(--on-dark);
}
.page-faq .faq-read-section .eyebrow {
  color: var(--brand-400);
}
.page-faq .faq-read-links {
  margin-top: 32px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--on-dark-line);
  border: 1px solid var(--on-dark-line);
  border-radius: var(--radius-m);
  overflow: hidden;
}
.page-faq .faq-read {
  display: grid;
  gap: 6px;
  padding: 20px;
  background: var(--ink-800);
  color: var(--on-dark);
  text-decoration: none;
  transition: background var(--dur-2) var(--ease);
}
.page-faq .faq-read:hover {
  background: var(--glass);
}
.page-faq .faq-read__title {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.page-faq .faq-read__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--on-dark-muted);
}

/* 悬停状态微调 */
@media (hover: hover) {
  .page-faq .faq-item:not(:has(.accordion__panel[data-open="true"])) .accordion__trigger:hover {
    color: var(--brand-600);
  }
}

/* 窄屏适配 */
@media (max-width: 640px) {
  .page-faq .faq-hero__text h1 {
    font-size: 26px;
    line-height: 1.26;
  }
  .page-faq .accordion__trigger {
    font-size: 15px;
    padding: 16px 14px;
  }
  .page-faq .accordion__body {
    padding: 0 14px 18px;
  }
  .page-faq .faq-group__title {
    font-size: 20px;
  }
}

/* 平板以上：桌面布局 */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: 5fr 7fr;
    gap: 56px;
    align-items: center;
  }
  .page-faq .faq-hero__text h1 {
    margin-top: 14px;
  }
  .page-faq .page-faq__body {
    padding-top: 56px;
  }
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) 1fr;
    gap: 56px;
    align-items: start;
  }
  .page-faq .faq-rail {
    position: sticky;
    top: 88px;
    display: block;
  }
  .page-faq .faq-toc {
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line-soft);
  }
  .page-faq .faq-toc__list {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-faq .faq-toc__list li {
    flex: 1 1 auto;
  }
  .page-faq .faq-toc__list .toc__link {
    width: 100%;
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 9px 0 9px 14px;
    border-radius: 0;
    background: transparent;
    border-left: 2px solid transparent;
    white-space: normal;
    font-weight: 500;
    color: var(--slate-500);
  }
  .page-faq .faq-toc__list .toc__link:hover {
    background: transparent;
    color: var(--text-900);
  }
  .page-faq .faq-toc__list .toc__link[aria-current="true"] {
    background: transparent;
    border-left-color: var(--brand-600);
    color: var(--brand-600);
    font-weight: 600;
  }
  .page-faq .faq-note {
    display: block;
    margin-top: 24px;
  }
  .page-faq .faq-contact__row {
    grid-template-columns: 120px 1fr;
    gap: 16px;
    align-items: center;
  }
  .page-faq .faq-read-links {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-faq .faq-read {
    padding: 24px 26px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-read-links {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-faq .faq-read__desc {
    min-height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .accordion__panel,
  .page-faq .accordion__icon::before,
  .page-faq .accordion__icon::after,
  .page-faq .faq-item,
  .page-faq .faq-read {
    transition: none;
  }
}