.page-faq {
  display: block;
  background:
    radial-gradient(110% 70% at 92% -8%, rgba(226, 59, 24, .22), transparent 62%),
    radial-gradient(80% 55% at -12% 28%, rgba(14, 59, 49, .55), transparent 70%),
    linear-gradient(180deg, var(--night) 0%, var(--night-2) 52%, var(--night) 100%);
  color: var(--fg);
  padding-bottom: clamp(56px, 9vw, 120px);
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible,
.page-faq button:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 2px;
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: calc(var(--header-h) + 22px) 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--muted);
}
.page-faq .crumbs a {
  color: var(--muted);
  text-decoration: none;
  transition: color .22s var(--ease);
}
.page-faq .crumbs a:hover {
  color: var(--ember);
}
.page-faq .crumbs__sep {
  color: var(--line-red);
}
.page-faq .crumbs [aria-current="page"] {
  color: var(--warm);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero__frame {
  position: relative;
  margin: 0;
}
.page-faq .faq-hero__frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(92%) contrast(106%);
}
.page-faq .faq-hero__panel {
  position: relative;
  margin-top: -30px;
  padding: clamp(20px, 4vw, 44px);
  background: linear-gradient(140deg, rgba(11, 21, 34, .97) 0%, rgba(14, 59, 49, .92) 100%);
  border: 1px solid var(--hair-red);
  border-left: 3px solid var(--ember);
  clip-path: polygon(
    var(--notch) 0,
    100% 0,
    100% calc(100% - var(--notch)),
    calc(100% - var(--notch)) 100%,
    0 100%,
    0 var(--notch)
  );
}
.page-faq h1 {
  margin: 12px 0 16px;
  max-width: 24ch;
  font-size: clamp(30px, 5.4vw, 58px);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--warm);
}
.page-faq .faq-lead {
  max-width: 62ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(255, 244, 236, .8);
}
.page-faq .faq-facts {
  display: grid;
  gap: 16px;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--hair-red);
}
.page-faq .faq-facts li {
  display: flex;
  gap: 12px;
  align-items: baseline;
}
.page-faq .faq-facts__n {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ember);
}
.page-faq .faq-facts__t {
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 主体栅格 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(24px, 4vw, 56px);
  margin-top: clamp(40px, 6vw, 84px);
}

/* ---------- 分类目录 ---------- */
.page-faq .faq-side__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  border-left: 1px solid var(--hair-red);
}
.page-faq .faq-side__list a {
  position: relative;
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 11px 8px 11px 16px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--muted);
  text-decoration: none;
  transition: color .22s var(--ease), background-color .22s var(--ease);
}
.page-faq .faq-side__list a::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 7px;
  bottom: 7px;
  width: 2px;
  background: var(--ember);
  transform: scaleY(0);
  transform-origin: 50% 0;
  transition: transform .28s var(--ease);
}
.page-faq .faq-side__list a:hover {
  color: var(--warm);
  background: rgba(226, 59, 24, .08);
}
.page-faq .faq-side__list a[aria-current="location"] {
  color: var(--warm);
  background: linear-gradient(90deg, rgba(226, 59, 24, .16), transparent);
}
.page-faq .faq-side__list a[aria-current="location"]::before {
  transform: scaleY(1);
}
.page-faq .faq-side__num {
  flex: 0 0 auto;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--flame-300);
}
.page-faq .faq-side__list a[aria-current="location"] .faq-side__num {
  color: var(--ember);
}
.page-faq .faq-side__hint {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--hair-red);
  font-size: 12px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 分类区块 ---------- */
.page-faq .faq-group {
  margin-top: clamp(36px, 5vw, 64px);
  scroll-margin-top: calc(var(--header-h) + 24px);
}
.page-faq .faq-group:first-child {
  margin-top: 0;
}
.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 20px;
}
.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--warm);
}
.page-faq .faq-group__rule {
  display: block;
  width: 100%;
  margin: 18px 0 0;
}
.page-faq .faq-group__intro {
  max-width: 60ch;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 费用面板 ---------- */
.page-faq .faq-group--fee {
  padding: clamp(20px, 3.2vw, 40px);
  background: linear-gradient(
    150deg,
    rgba(14, 59, 49, .92) 0%,
    rgba(11, 21, 34, .8) 62%,
    rgba(7, 10, 13, .92) 100%
  );
  border: 1px solid rgba(184, 134, 47, .28);
  border-top: 3px solid var(--ember);
  clip-path: polygon(
    var(--notch) 0,
    100% 0,
    100% calc(100% - var(--notch)),
    calc(100% - var(--notch)) 100%,
    0 100%,
    0 var(--notch)
  );
}
.page-faq .faq-group--fee .faq-group__intro {
  color: rgba(255, 244, 236, .74);
}
.page-faq .fee-layout {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
  margin-top: 22px;
}
.page-faq .fee-note {
  padding: 16px;
  border: 1px solid var(--hair-red);
  background: rgba(7, 10, 13, .6);
}
.page-faq .fee-note__fig {
  margin: 0 0 16px;
}
.page-faq .fee-note__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-faq .fee-note__list {
  list-style: none;
  margin: 12px 0 22px;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-faq .fee-note__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 244, 236, .84);
}
.page-faq .fee-note__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--ember);
  transform: rotate(45deg);
}
.page-faq .fee-note__k {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--flame-300);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--hair-red);
}
.page-faq .faq-item:last-child {
  border-bottom: 1px solid var(--hair-red);
}
.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 6px;
  cursor: pointer;
  list-style: none;
  transition: background-color .22s var(--ease);
}
.page-faq .faq-q::-webkit-details-marker {
  display: none;
}
.page-faq .faq-q:hover {
  background: rgba(226, 59, 24, .08);
}
.page-faq .faq-q__num {
  flex: 0 0 auto;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ember);
}
.page-faq .faq-q__text {
  flex: 1 1 auto;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--warm);
  transition: color .22s var(--ease);
}
.page-faq .faq-item[open] .faq-q__text {
  color: var(--flame-300);
}
.page-faq .faq-q__mark {
  position: relative;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin-top: 4px;
}
.page-faq .faq-q__mark::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 16px;
  height: 2px;
  margin: -1px 0 0 -8px;
  background: var(--metal);
  transform: rotate(45deg);
  transition: transform .3s var(--ease), background-color .3s var(--ease);
}
.page-faq .faq-item[open] .faq-q__mark::before {
  transform: rotate(-45deg);
  background: var(--ember);
}
.page-faq .faq-a {
  padding: 0 6px 22px 40px;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(255, 244, 236, .78);
}
.page-faq .faq-a p {
  margin: 0 0 10px;
}
.page-faq .faq-a p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-a a {
  color: var(--flame-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .faq-a a:hover {
  color: var(--ember);
}

/* ---------- 人工客服 ---------- */
.page-faq .faq-support {
  margin-top: clamp(36px, 5vw, 68px);
  padding: clamp(22px, 3.4vw, 44px);
  background: linear-gradient(120deg, rgba(168, 31, 11, .38) 0%, rgba(11, 21, 34, .92) 58%, rgba(7, 10, 13, .96) 100%);
  border: 1px solid var(--hair-red);
  border-left: 3px solid var(--flame-500);
  clip-path: polygon(
    var(--notch) 0,
    100% 0,
    100% calc(100% - var(--notch)),
    calc(100% - var(--notch)) 100%,
    0 100%,
    0 var(--notch)
  );
}
.page-faq .faq-support__title {
  margin: 12px 0 12px;
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--warm);
}
.page-faq .faq-support__lead {
  max-width: 60ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(255, 244, 236, .78);
}
.page-faq .faq-support__grid {
  display: grid;
  gap: 22px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--hair-red);
}
.page-faq .faq-support__item {
  min-width: 0;
}
.page-faq .contact-item__value--copy {
  display: inline-block;
  margin: 8px 0 0;
  padding: 0 0 4px;
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.4vw, 18px);
  color: var(--ember);
  background: none;
  border: 0;
  border-bottom: 1px dashed var(--metal);
  cursor: pointer;
  text-align: left;
  word-break: break-all;
  transition: color .22s var(--ease), border-color .22s var(--ease);
}
.page-faq .contact-item__value--copy:hover {
  color: var(--warm);
  border-bottom-color: var(--ember);
}
.page-faq .contact-item__value--copy[data-copied]::after {
  content: " 已复制";
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--flame-300);
}
.page-faq .faq-support__tel {
  display: inline-block;
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(20px, 3.2vw, 30px);
  letter-spacing: .02em;
  color: var(--warm);
  text-decoration: none;
  border-bottom: 1px solid var(--hair-red);
  transition: color .22s var(--ease), border-color .22s var(--ease);
}
.page-faq .faq-support__tel:hover {
  color: var(--ember);
  border-bottom-color: var(--ember);
}
.page-faq .faq-support__hint {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
  word-break: break-word;
}
.page-faq .faq-support__more {
  margin: 26px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}
.page-faq .faq-support__more a {
  color: var(--flame-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .faq-support__more a:hover {
  color: var(--ember);
}

/* ---------- 窄屏 ---------- */
@media (max-width: 560px) {
  .page-faq .faq-a {
    padding-left: 6px;
  }
  .page-faq .faq-q__text {
    font-size: 15.5px;
  }
  .page-faq .faq-facts li {
    gap: 10px;
  }
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
  .page-faq .faq-support__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__frame img {
    aspect-ratio: 1600 / 420;
  }
  .page-faq .faq-hero__panel {
    margin-top: -72px;
    margin-left: clamp(0px, 4vw, 72px);
    max-width: 1000px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: 250px minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
}

@media (min-width: 1080px) {
  .page-faq .fee-layout {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 动效减弱 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}