.page-faq {
  --faq-muted: #3E5668;
  --faq-hair: rgba(10, 20, 29, .11);
  --faq-teal-line: rgba(11, 127, 122, .32);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(22px, 4vw, 36px) clamp(38px, 6vw, 72px);
  background:
    radial-gradient(120% 85% at 88% -12%, rgba(61, 224, 208, .17), transparent 58%),
    radial-gradient(90% 70% at 0% 100%, rgba(255, 107, 44, .11), transparent 60%),
    linear-gradient(175deg, var(--deep) 0%, var(--night) 62%, var(--deep) 100%);
  color: var(--white);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(169, 192, 208, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(169, 192, 208, .07) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 78%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 78%);
  pointer-events: none;
}

.page-faq .faq-hero .breadcrumb a,
.page-faq .faq-hero .breadcrumb li {
  color: var(--soft);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(22px, 3.4vw, 40px);
  padding-bottom: clamp(24px, 3.6vw, 42px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero .eyebrow {
  color: var(--cyan);
}

.page-faq .page-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.15rem, 6.2vw, 4.3rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--white);
  transform: skewX(-1.2deg);
}

.page-faq .faq-hero .lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: clamp(.96rem, 1.5vw, 1.08rem);
  line-height: 1.8;
  color: var(--soft);
}

.page-faq .faq-hero__aside {
  border-left: 2px solid var(--cyan);
  padding-left: 16px;
}

.page-faq .faq-hero__aside .eyebrow {
  margin: 0;
  letter-spacing: .16em;
  color: var(--soft);
}

.page-faq .faq-hero__hours {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(.96rem, 1.6vw, 1.06rem);
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  letter-spacing: .01em;
}

.page-faq .faq-hero__note {
  margin: 8px 0 0;
  font-size: .82rem;
  line-height: 1.65;
  color: var(--soft);
  max-width: 30ch;
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: clamp(22px, 3.4vw, 38px) 0 0;
  border: 1px solid rgba(61, 224, 208, .3);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--night);
}

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

.page-faq .faq-hero__cap {
  position: absolute;
  inset: auto 0 0 0;
  margin: 0;
  padding: 28px 16px 12px;
  font-size: .76rem;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--white);
  background: linear-gradient(to top, rgba(7, 23, 38, .92), transparent);
}

/* ---------- 主区 ---------- */
.page-faq .faq-main {
  background: var(--mist);
  color: var(--ink);
  padding-block: clamp(36px, 6vw, 76px);
}

.page-faq .faq-main__head {
  display: grid;
  gap: 10px;
  max-width: 64ch;
  margin-bottom: clamp(22px, 3.4vw, 38px);
}

.page-faq .faq-main__head .eyebrow {
  margin: 0;
  color: var(--teal);
}

.page-faq .faq-main__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-main__hint {
  margin: 0;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--faq-muted);
}

.page-faq .faq-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-index .tabs__list {
  display: flex;
  flex-direction: row;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  border: 0;
  background: transparent;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
}

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

.page-faq .faq-index .tabs__tab {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  flex: 0 0 auto;
  width: auto;
  padding: 10px 16px;
  border: 1px solid rgba(10, 20, 29, .14);
  border-radius: 999px;
  background: #FFFFFF;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: .9rem;
  font-weight: 500;
  line-height: 1.3;
  white-space: nowrap;
  cursor: pointer;
  transition: border-color .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-index .tabs__tab:hover {
  border-color: var(--teal);
  color: var(--teal);
}

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

.page-faq .faq-index .tabs__tab[aria-selected="true"] {
  background: var(--night);
  border-color: var(--night);
  color: var(--white);
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--teal);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-index .tabs__tab[aria-selected="true"] .faq-index__no {
  color: var(--cyan);
}

/* ---------- 右侧面板 ---------- */
.page-faq .faq-panels {
  min-width: 0;
  display: grid;
  gap: clamp(20px, 2.6vw, 32px);
}

.page-faq .faq-panel {
  min-width: 0;
  outline: none;
}

.page-faq .faq-panel:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 6px;
  border-radius: 8px;
}

.page-faq .faq-panel__head {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
  padding-left: 14px;
  border-left: 3px solid var(--teal);
}

.page-faq .faq-panel__no {
  justify-self: start;
  padding: 4px 10px;
  border: 1px solid var(--faq-teal-line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--teal);
}

.page-faq .faq-panel__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.6vw, 1.85rem);
  line-height: 1.2;
  color: var(--ink);
}

.page-faq .faq-panel__lead {
  margin: 0;
  max-width: 62ch;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--faq-muted);
}

/* ---------- 问题卡 ---------- */
.page-faq .faq-card {
  margin-bottom: 10px;
  background: var(--white);
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  box-shadow: 0 1px 0 rgba(10, 20, 29, .03);
  overflow: hidden;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .faq-card:hover {
  border-color: rgba(11, 127, 122, .3);
}

.page-faq .faq-card[open] {
  border-color: var(--faq-teal-line);
  box-shadow: 0 18px 36px -28px rgba(7, 23, 38, .75);
}

.page-faq .faq-card__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 18px;
  list-style: none;
  cursor: pointer;
  font-size: .97rem;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink);
  transition: color .2s var(--ease);
}

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

.page-faq .faq-card__q:hover {
  color: var(--teal);
}

.page-faq .faq-card__q:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -3px;
}

.page-faq .faq-card__q::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  margin-left: auto;
  margin-top: .5em;
  border-right: 2px solid var(--teal);
  border-bottom: 2px solid var(--teal);
  transform: rotate(45deg);
  transition: transform .22s var(--ease);
}

.page-faq .faq-card[open] .faq-card__q::after {
  transform: rotate(225deg);
}

.page-faq .faq-card__no {
  flex: none;
  padding-top: .28em;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--teal);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-card__a {
  margin: 0 18px;
  padding: 14px 0 18px;
  border-top: 1px solid rgba(10, 20, 29, .08);
  font-size: .94rem;
  line-height: 1.8;
  color: #2A3D4C;
}

.page-faq .faq-card__a p {
  margin: 0;
  max-width: 62ch;
}

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

.page-faq .faq-card__a a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-teal-line);
}

.page-faq .faq-card__a a:hover {
  border-bottom-color: var(--teal);
}

/* ---------- 面板内插图 ---------- */
.page-faq .faq-figure {
  margin: 16px 0 0;
  max-width: 320px;
  border: 1px solid rgba(10, 20, 29, .12);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--night);
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 14px 12px;
  font-size: .78rem;
  line-height: 1.65;
  color: var(--soft);
}

/* ---------- 面板底部链接 ---------- */
.page-faq .faq-panel__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  font-size: .86rem;
}

.page-faq .faq-panel__links a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-teal-line);
  padding-bottom: 1px;
}

.page-faq .faq-panel__links a:hover {
  border-bottom-color: var(--teal);
}

/* ---------- 底部联系区 ---------- */
.page-faq .faq-help {
  position: relative;
  overflow: hidden;
  padding-block: clamp(36px, 5.5vw, 68px);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(61, 224, 208, .15), transparent 55%),
    linear-gradient(160deg, var(--night), var(--deep));
  color: var(--white);
}

.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 46px);
  align-items: center;
}

.page-faq .faq-help .eyebrow {
  margin: 0;
  color: var(--cyan);
}

.page-faq .faq-help h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  line-height: 1.16;
  color: var(--white);
}

.page-faq .faq-help p {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--soft);
}

.page-faq .faq-help .btn {
  margin-top: 20px;
}

.page-faq .faq-help__channels {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help__channels li {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: rgba(14, 42, 66, .55);
}

.page-faq .faq-help__k {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--soft);
}

.page-faq .faq-help__v {
  font-family: var(--font-mono);
  font-size: clamp(.94rem, 2.4vw, 1.04rem);
  line-height: 1.5;
  color: var(--white);
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.page-faq .faq-help__channels .copy-btn {
  justify-self: start;
  margin-top: 2px;
  padding: 6px 14px;
  border: 1px solid rgba(61, 224, 208, .5);
  border-radius: 999px;
  background: transparent;
  color: var(--cyan);
  font-family: var(--font-body);
  font-size: .78rem;
  line-height: 1.4;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-help__channels .copy-btn:hover {
  background: rgba(61, 224, 208, .14);
  color: var(--white);
}

.page-faq .faq-help__channels .copy-btn:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-faq .faq-help__channels .copy-btn[data-copied] {
  border-color: var(--orange);
  color: var(--orange);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-hero__cap {
    padding: 32px 24px 16px;
    font-size: .82rem;
  }

  .page-faq .faq-figure {
    max-width: 360px;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }
}

@media (min-width: 940px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }

  .page-faq .faq-hero__aside {
    justify-self: end;
    max-width: 300px;
  }

  .page-faq .faq-board {
    grid-template-columns: minmax(230px, 268px) minmax(0, 1fr);
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }

  .page-faq .faq-index .tabs__list {
    flex-direction: column;
    gap: 6px;
    padding: 0;
    overflow: visible;
  }

  .page-faq .faq-index .tabs__tab {
    width: 100%;
    justify-content: flex-start;
    border-radius: 12px;
    padding: 12px 14px;
  }

  .page-faq .faq-panels {
    padding-top: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-card,
  .page-faq .faq-card__q::after,
  .page-faq .faq-index .tabs__tab,
  .page-faq .faq-help__channels .copy-btn {
    transition: none;
  }

  .page-faq .page-title {
    transform: none;
  }
}