.page-faq {
  --faq-ink-soft: rgba(29, 22, 16, 0.78);
  --faq-line-soft: rgba(29, 22, 16, 0.14);
  --faq-cream-soft: rgba(242, 234, 215, 0.72);
  background: var(--night);
  color: var(--cream);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--night);
}

.page-faq .faq-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.38;
  filter: saturate(0.85) contrast(1.12);
}

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 110% at 10% 12%, rgba(14, 43, 36, 0.92) 0%, rgba(7, 23, 38, 0.62) 58%, rgba(7, 23, 38, 0.97) 100%),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(127, 154, 166, 0.13) 39px 40px);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(30px, 5vw, 52px);
  padding-bottom: clamp(40px, 7vw, 80px);
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-faq .faq-hero .breadcrumbs__item {
  color: inherit;
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin: 0 8px;
  color: rgba(127, 154, 166, 0.5);
}

.page-faq .faq-hero .breadcrumbs__item[aria-current="page"] {
  color: var(--cream);
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 6vw, 62px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: 0.02em;
  color: var(--cream);
}

.page-faq .faq-hero__title::after {
  content: "";
  display: block;
  width: 76px;
  height: 4px;
  margin-top: 20px;
  border-radius: 2px;
  background: var(--spine-x);
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--faq-cream-soft);
}

/* ---------- 筛选 ---------- */
.page-faq .faq-tools {
  padding-top: 26px;
  padding-bottom: 2px;
}

.page-faq .faq-tools .filter-bar {
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-top: 24px;
  padding-bottom: clamp(44px, 7vw, 88px);
}

/* 索引 */
.page-faq .faq-index {
  position: relative;
  padding: 18px 18px 18px 24px;
  background: var(--turf);
  border-radius: var(--radius);
}

.page-faq .faq-index::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 2px;
  background: var(--spine);
}

.page-faq .faq-index .eyebrow {
  display: block;
  margin-bottom: 12px;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  min-height: 44px;
  box-sizing: border-box;
  font-size: 14px;
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid rgba(127, 154, 166, 0.16);
  transition: color 0.24s var(--ease), padding-left 0.24s var(--ease);
}

.page-faq .faq-index__list li:last-child .faq-index__link {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--cyan);
  padding-left: 6px;
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-index__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  font-variant-numeric: tabular-nums;
  color: var(--gold);
}

/* ---------- 答案分组 ---------- */
.page-faq .faq-answers {
  min-width: 0;
}

.page-faq .faq-group {
  background: var(--cream);
  color: var(--ink);
  border-radius: var(--radius-lg);
  padding: clamp(18px, 3vw, 30px);
  margin-bottom: 20px;
  scroll-margin-top: 24px;
  transition: box-shadow 0.32s var(--ease);
}

.page-faq .faq-group:last-of-type {
  margin-bottom: 0;
}

.page-faq .faq-group:target {
  box-shadow: 0 0 0 1px rgba(255, 162, 31, 0.45), 0 0 34px rgba(255, 162, 31, 0.12);
}

.page-faq .faq-group__head {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 14px;
  margin-bottom: 6px;
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 58px;
  height: 2px;
  background: var(--rust);
}

.page-faq .faq-group__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  font-variant-numeric: tabular-nums;
  color: var(--rust);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.02em;
  color: var(--ink);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-item:last-child {
  border-bottom: 0;
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--ink);
  transition: color 0.2s var(--ease);
}

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

.page-faq .faq-item__q:hover {
  color: var(--rust);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

.page-faq .faq-marker {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 6px;
}

.page-faq .faq-marker::before,
.page-faq .faq-marker::after {
  content: "";
  position: absolute;
  background: var(--rust);
  transition: transform 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .faq-marker::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .faq-marker::after {
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}

.page-faq .faq-item[open] .faq-marker::after {
  transform: translateX(-50%) scaleY(0);
}

.page-faq .faq-item[open] .faq-marker::before {
  background: var(--rust);
}

.page-faq .faq-item__a {
  margin: 0;
  padding: 0 0 18px 28px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
  animation: faq-open 0.28s var(--ease) both;
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
}

.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* 设备分组的左右分栏 */
.page-faq .faq-group__body--split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.page-faq .faq-group__qa {
  min-width: 0;
}

.page-faq .faq-media {
  margin: 18px 0 0;
}

.page-faq .faq-media .media__frame {
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-media .media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-media .media__caption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: rgba(29, 22, 16, 0.58);
}

/* ---------- 转人工 ---------- */
.page-faq .faq-contact {
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .faq-contact__panel {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 44px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(110% 130% at 88% 8%, rgba(14, 43, 36, 0.96) 0%, rgba(7, 23, 38, 0.99) 62%),
    repeating-linear-gradient(0deg, transparent 0 47px, rgba(127, 154, 166, 0.1) 47px 48px);
}

.page-faq .faq-contact__panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--spine);
}

.page-faq .faq-contact__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--cream);
}

.page-faq .faq-contact__lede {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--faq-cream-soft);
}

.page-faq .faq-contact__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 24px 0 0;
  background: rgba(127, 154, 166, 0.2);
  border: 1px solid rgba(127, 154, 166, 0.2);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding: 14px 16px;
  background: rgba(7, 23, 38, 0.86);
}

.page-faq .faq-contact__row dt {
  flex: 0 0 auto;
  min-width: 78px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-contact__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-contact__link {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 162, 31, 0.45);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-contact__link:hover,
.page-faq .faq-contact__link:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-contact__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 窄屏：索引转为胶囊行 ---------- */
@media (max-width: 939px) {
  .page-faq .faq-index {
    padding: 16px;
  }

  .page-faq .faq-index::before {
    top: 0;
    bottom: auto;
    left: 16px;
    right: 16px;
    width: auto;
    height: 2px;
  }

  .page-faq .faq-index__list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .page-faq .faq-index__list li {
    flex: 0 0 auto;
  }

  .page-faq .faq-index__link {
    min-height: 40px;
    padding: 7px 13px;
    border: 1px solid var(--line);
    border-radius: 999px;
    border-bottom: 1px solid var(--line);
  }

  .page-faq .faq-index__list li:last-child .faq-index__link {
    padding-bottom: 7px;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    padding-left: 13px;
    border-color: var(--cyan);
  }
}

/* ---------- 桌面双栏 ---------- */
@media (min-width: 940px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(200px, 240px) minmax(0, 1fr);
    gap: clamp(30px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 28px;
  }

  .page-faq .faq-contact__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-group__body--split {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 30px;
  }

  .page-faq .faq-media {
    margin-top: 4px;
  }
}

/* ---------- 降低动态效果 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a {
    animation: none;
  }

  .page-faq .faq-marker::before,
  .page-faq .faq-marker::after,
  .page-faq .faq-index__link,
  .page-faq .faq-item__q,
  .page-faq .faq-group {
    transition: none;
  }
}