.page-faq {
  --faq-side-w: 300px;
  --faq-gap: clamp(22px, 3.4vw, 52px);
  position: relative;
  background:
    radial-gradient(140% 84% at 92% -12%, rgba(14, 27, 42, .96) 0%, rgba(8, 28, 20, 0) 62%),
    linear-gradient(180deg, var(--c-night) 0%, var(--c-night) 100%);
  color: var(--c-cream);
  padding-bottom: clamp(56px, 8vw, 110px);
  overflow-x: clip;
}

/* ── 面包屑 ─────────────────────────────── */
.page-faq .breadcrumb {
  padding-top: clamp(18px, 3vw, 34px);
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-faq .breadcrumb__link {
  color: var(--c-sage);
  text-decoration: none;
  transition: color .18s var(--ease);
}

.page-faq .breadcrumb__link:hover {
  color: var(--c-lime);
}

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

.page-faq .breadcrumb__sep {
  color: var(--c-moss);
}

/* ── 首屏 ───────────────────────────────── */
.page-faq .faq-hero {
  padding: clamp(30px, 5vw, 60px) 0 clamp(26px, 4vw, 44px);
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-hero .eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-lime);
}

.page-faq .faq-hero__title {
  max-width: 24ch;
  margin: 0 0 20px;
  font-family: var(--font-sans);
  font-size: clamp(29px, 5.2vw, 56px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.022em;
  color: var(--c-flood);
}

.page-faq .faq-hero__title em {
  font-style: normal;
  color: var(--c-lime);
}

.page-faq .faq-hero__lede {
  max-width: 64ch;
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.9;
  color: var(--c-sage);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(28px, 4vw, 42px) 0 0;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  background: var(--c-line);
  overflow: hidden;
}

.page-faq .faq-stat {
  padding: 16px 18px 18px;
  background: var(--c-night);
}

.page-faq .faq-stat__label {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-sage);
}

.page-faq .faq-stat__value {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 24px);
  color: var(--c-cream);
}

/* ── 主布局：左标签 + 右问答 ───────────── */
.page-faq .faq-layout {
  padding-top: clamp(32px, 5vw, 58px);
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-side {
  display: grid;
  gap: 20px;
  min-width: 0;
}

.page-faq .faq-side__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-sage);
}

/* 分类标签 */
.page-faq .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-faq .tabs__tab {
  flex: 1 1 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  padding: 11px 13px;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  background: transparent;
  color: var(--c-sage);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.35;
  text-align: left;
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-faq .tabs__tab:hover {
  color: var(--c-cream);
  border-color: var(--c-line-strong);
}

.page-faq .tabs__tab:focus-visible {
  outline: 2px solid var(--c-lime);
  outline-offset: 2px;
}

.page-faq .tabs__tab[aria-selected="true"] {
  color: var(--c-flood);
  border-color: var(--c-line-strong);
  background: linear-gradient(90deg, rgba(200, 255, 77, .16) 0%, rgba(200, 255, 77, 0) 74%);
  box-shadow: inset 2px 0 0 0 var(--c-lime);
  font-weight: 700;
}

.page-faq .faq-tabnum {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--c-gold);
}

.page-faq .tabs__tab[aria-selected="true"] .faq-tabnum {
  color: var(--c-lime);
}

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

/* 侧栏联系卡 */
.page-faq .faq-side__card {
  padding: 18px 18px 20px;
  border: 1px solid var(--c-line);
  border-left: 2px solid var(--c-lime);
  border-radius: var(--r);
  background: linear-gradient(158deg, rgba(14, 27, 42, .94) 0%, rgba(38, 43, 39, .72) 100%);
}

.page-faq .faq-side__card-title {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-flood);
}

.page-faq .faq-side__card-text {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-sage);
}

.page-faq .faq-side__mail {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--c-gold);
  word-break: break-all;
}

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

.page-faq .faq-side__actions .btn {
  flex: 1 1 auto;
  justify-content: center;
  text-align: center;
}

/* ── 右侧面板 ───────────────────────────── */
.page-faq .faq-main {
  display: grid;
  gap: clamp(40px, 6vw, 84px);
  min-width: 0;
}

.page-faq .tabs__panel:focus-visible {
  outline: 2px solid var(--c-lime);
  outline-offset: 10px;
  border-radius: var(--r);
}

.page-faq .faq-panel__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding-bottom: 20px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--c-line-strong);
}

.page-faq .faq-panel__index {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 46px);
  font-weight: 700;
  line-height: .92;
  color: rgba(200, 255, 77, .32);
}

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

.page-faq .faq-panel__title {
  margin: 0 0 8px;
  font-size: clamp(20px, 2.7vw, 30px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.012em;
  color: var(--c-flood);
}

.page-faq .faq-panel__desc {
  margin: 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--c-sage);
}

/* ── 图片容器 ───────────────────────────── */
.page-faq .faq-media {
  margin: 0 0 clamp(22px, 3vw, 32px);
}

.page-faq .media__frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 10 / 7;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  background: var(--c-ink);
}

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

.page-faq .media__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--c-sage);
}

/* ── 折叠问答 ───────────────────────────── */
.page-faq .faq-list {
  border-top: 1px solid var(--c-line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 4px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-cream);
  transition: color .18s var(--ease);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

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

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

.page-faq .faq-item__num {
  flex: none;
  min-width: 2.1em;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-gold);
}

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

.page-faq .faq-item__icon {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 7px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1.5px;
  background: var(--c-sage);
  transition: transform .22s var(--ease), background-color .22s var(--ease);
}

.page-faq .faq-item__icon::after {
  transform: rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: rotate(0deg);
}

.page-faq .faq-item[open] .faq-item__icon::before,
.page-faq .faq-item[open] .faq-item__icon::after {
  background: var(--c-lime);
}

.page-faq .faq-item__a {
  padding: 0 4px 22px 30px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--c-sage);
}

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

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

.page-faq .faq-item__a .link {
  color: var(--c-lime);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-item__a .link:hover {
  color: var(--c-flood);
}

.page-faq .faq-mail-inline {
  font-family: var(--font-mono);
  font-size: .95em;
  color: var(--c-gold);
  word-break: break-all;
}

/* ── 平板与桌面 ─────────────────────────── */
@media (min-width: 720px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-side-w) minmax(0, 1fr);
  }

  .page-faq .faq-side {
    position: sticky;
    top: 96px;
  }

  .page-faq .tabs__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    border-top: 1px solid var(--c-line);
  }

  .page-faq .tabs__tab {
    flex: none;
    width: 100%;
    border: 0;
    border-bottom: 1px solid var(--c-line);
    border-left: 2px solid transparent;
    border-radius: 0;
    padding: 13px 14px;
    box-shadow: none;
  }

  .page-faq .tabs__tab[aria-selected="true"] {
    border-left-color: var(--c-lime);
    background: linear-gradient(90deg, rgba(200, 255, 77, .14) 0%, rgba(200, 255, 77, 0) 78%);
  }
}

@media (min-width: 1200px) {
  .page-faq {
    --faq-side-w: 322px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .tabs__tab,
  .page-faq .faq-item__q,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after {
    transition: none;
  }
}