.page-faq {
  --faq-line: rgba(201, 210, 220, .6);
  --faq-soft: rgba(201, 210, 220, .34);
  --faq-shadow: 0 12px 30px rgba(5, 21, 36, .07);
  --faq-shadow-open: 0 20px 46px rgba(5, 21, 36, .12);
  --faq-tone: var(--cc-coral);
  background: var(--cc-pearl);
  color: var(--cc-ink);
  font-family: var(--cc-font-body);
  overflow-wrap: break-word;
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible,
.page-faq button:focus-visible {
  outline: 2px solid var(--cc-neon);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(1100px 480px at 80% -14%, rgba(255, 107, 65, .24), transparent 62%),
    radial-gradient(720px 420px at 6% 112%, rgba(56, 225, 225, .14), transparent 66%),
    linear-gradient(168deg, var(--cc-deep) 0%, var(--cc-abyss) 100%);
  color: var(--cc-pearl);
  padding: calc(var(--cc-head-h, 76px) + clamp(52px, 9vw, 92px)) 0 clamp(58px, 9vw, 106px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(56, 225, 225, .075) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 225, 225, .075) 1px, transparent 1px);
  background-size: 78px 78px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .85), rgba(0, 0, 0, 0) 78%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .85), rgba(0, 0, 0, 0) 78%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
}

.page-faq .faq-crumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  font-size: 13px;
  letter-spacing: .05em;
  color: rgba(246, 244, 239, .6);
  margin-bottom: clamp(26px, 5vw, 46px);
}

.page-faq .faq-crumb a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 210, 220, .34);
  padding-bottom: 1px;
  transition: color .2s var(--cc-ease), border-color .2s var(--cc-ease);
}

.page-faq .faq-crumb a:hover {
  color: var(--cc-neon);
  border-color: var(--cc-neon);
}

.page-faq .faq-crumb span[aria-hidden] {
  color: rgba(255, 160, 122, .82);
}

.page-faq .faq-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--cc-neon);
}

.page-faq .faq-hero__eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
}

.page-faq .faq-hero h1 {
  font-family: var(--cc-font-display);
  font-weight: 900;
  font-size: clamp(29px, 5.2vw, 52px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: #fff;
  margin: 0 0 20px;
  max-width: 19em;
}

.page-faq .faq-hero__lead {
  font-size: clamp(15px, 1.55vw, 17px);
  line-height: 1.88;
  color: rgba(246, 244, 239, .8);
  max-width: 60ch;
  margin: 0 0 clamp(26px, 4vw, 40px);
}

.page-faq .faq-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-quick a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 17px;
  border-radius: var(--cc-r-pill);
  border: 1px solid rgba(201, 210, 220, .3);
  background: rgba(30, 78, 114, .3);
  color: var(--cc-pearl);
  font-size: 13.5px;
  text-decoration: none;
  transition: border-color .22s var(--cc-ease), background .22s var(--cc-ease), transform .22s var(--cc-ease);
}

.page-faq .faq-quick a:hover {
  border-color: var(--cc-coral);
  background: rgba(255, 107, 65, .18);
  transform: translateY(-2px);
}

.page-faq .faq-quick .cc-mono {
  font-size: 11.5px;
  color: var(--cc-coral-soft);
}

/* ---------- 主体两栏 ---------- */

.page-faq .faq-body {
  padding: clamp(52px, 8vw, 104px) 0 clamp(46px, 7vw, 88px);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 44px);
  align-items: start;
}

.page-faq .faq-body__grid > * {
  min-width: 0;
}

/* ---------- 左侧分类刻度 ---------- */

.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--cc-tide);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 15px;
  border-radius: var(--cc-r-pill);
  border: 1px solid var(--faq-line);
  background: #fff;
  color: var(--cc-ink);
  font-size: 13.5px;
  text-decoration: none;
  transition: border-color .2s var(--cc-ease), background .2s var(--cc-ease), color .2s var(--cc-ease);
}

.page-faq .faq-index__list a:hover {
  border-color: var(--cc-coral);
  color: var(--cc-coral);
}

.page-faq .faq-index__num {
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--cc-coral);
}

.page-faq .faq-index__note {
  border-top: 1px dashed var(--faq-line);
  padding-top: 20px;
  font-size: 14px;
  line-height: 1.82;
  color: #3d4b57;
}

.page-faq .faq-index__note p {
  margin: 0 0 16px;
}

/* ---------- 问答分组 ---------- */

.page-faq .faq-groups {
  display: grid;
  gap: clamp(44px, 6vw, 78px);
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--cc-head-h, 76px) + 28px);
}

.page-faq .faq-group[data-tone="paths"] { --faq-tone: var(--cc-coral); }
.page-faq .faq-group[data-tone="subs"]  { --faq-tone: var(--cc-palm); }
.page-faq .faq-group[data-tone="files"] { --faq-tone: var(--cc-tide); }
.page-faq .faq-group[data-tone="reply"] { --faq-tone: var(--cc-coral); }

.page-faq .faq-group__head {
  border-left: 4px solid var(--faq-tone);
  padding-left: 16px;
  margin-bottom: 22px;
}

.page-faq .faq-group__num {
  display: block;
  margin-bottom: 7px;
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--faq-tone);
}

.page-faq .faq-group__title {
  margin: 0 0 10px;
  font-family: var(--cc-font-display);
  font-weight: 800;
  font-size: clamp(21px, 2.6vw, 28px);
  line-height: 1.3;
  letter-spacing: -.005em;
  color: var(--cc-ink);
}

.page-faq .faq-group__sum {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.8;
  color: #46545f;
}

/* ---------- 配图 ---------- */

.page-faq .faq-figure {
  margin: 0 0 clamp(22px, 3.4vw, 32px);
  border-radius: var(--cc-r-lg);
  overflow: hidden;
  background: var(--cc-deep);
}

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

/* ---------- 折叠条目 ---------- */

.page-faq .faq-items {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  background: #fff;
  border: 1px solid var(--faq-line);
  border-radius: var(--cc-r-md);
  box-shadow: var(--faq-shadow);
  overflow: hidden;
  transition: box-shadow .24s var(--cc-ease), border-color .24s var(--cc-ease);
}

.page-faq .faq-item[open] {
  border-color: var(--faq-soft);
  box-shadow: inset 3px 0 0 0 var(--faq-tone), var(--faq-shadow-open);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 20px;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.62;
  color: var(--cc-ink);
  transition: color .2s var(--cc-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(--faq-tone); }

.page-faq .faq-item__idx {
  flex: none;
  padding-top: 4px;
  font-size: 11.5px;
  letter-spacing: .02em;
  color: var(--cc-tide);
}

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

.page-faq .faq-item__q::after {
  content: "";
  flex: none;
  width: 18px;
  height: 18px;
  margin-left: auto;
  margin-top: 3px;
  border-radius: 50%;
  border: 1.5px solid var(--faq-tone);
  background-image:
    linear-gradient(var(--faq-tone), var(--faq-tone)),
    linear-gradient(var(--faq-tone), var(--faq-tone));
  background-size: 8px 1.5px, 1.5px 8px;
  background-position: center center, center center;
  background-repeat: no-repeat;
  transition: background-size .24s var(--cc-ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  background-size: 8px 1.5px, 1.5px 0;
}

.page-faq .faq-item__a {
  padding: 0 20px 22px 20px;
  font-size: 15px;
  line-height: 1.86;
  color: #3f4d58;
}

.page-faq .faq-item[open] .faq-item__a {
  animation: faq-answer-rise .3s var(--cc-ease) both;
}

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

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

.page-faq .faq-item__a ol {
  margin: 0 0 10px;
  padding-left: 1.25em;
}

.page-faq .faq-item__a li {
  margin-bottom: 5px;
}

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

.page-faq .faq-item__a a {
  color: var(--cc-tide);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--cc-coral-soft);
  transition: color .2s var(--cc-ease);
}

.page-faq .faq-item__a a:hover {
  color: var(--cc-coral);
}

@keyframes faq-answer-rise {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- 底部求助 ---------- */

.page-faq .faq-help {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(720px 360px at 88% 4%, rgba(255, 107, 65, .22), transparent 66%),
    linear-gradient(158deg, var(--cc-deep) 0%, var(--cc-abyss) 100%);
  color: var(--cc-pearl);
  padding: clamp(52px, 8vw, 92px) 0 clamp(58px, 9vw, 100px);
}

.page-faq .faq-help::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56, 225, 225, .55), rgba(255, 107, 65, .5), transparent);
}

.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: center;
}

.page-faq .faq-help__eyebrow {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--cc-neon);
}

.page-faq .faq-help h2 {
  margin: 0 0 20px;
  font-family: var(--cc-font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.28;
  color: #fff;
}

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

.page-faq .faq-help__list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(246, 244, 239, .84);
}

.page-faq .faq-help__list li::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 9px;
  border-radius: 2px;
  background: var(--cc-coral);
  transform: rotate(45deg);
}

.page-faq .faq-help__cta {
  background: rgba(30, 78, 114, .34);
  border: 1px solid rgba(201, 210, 220, .22);
  border-radius: var(--cc-r-lg);
  padding: clamp(24px, 4vw, 36px);
}

.page-faq .faq-help__lead {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.82;
  color: rgba(246, 244, 239, .86);
}

.page-faq .faq-help__alt {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(246, 244, 239, .6);
}

.page-faq .faq-help__alt a {
  color: var(--cc-neon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-help__alt a:hover {
  color: var(--cc-coral-soft);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-faq .faq-item__q {
    padding: 20px 24px;
    font-size: 16px;
  }

  .page-faq .faq-item__a {
    padding: 0 24px 24px 76px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 256px minmax(0, 1fr);
    gap: clamp(40px, 5vw, 72px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--cc-head-h, 76px) + 26px);
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    border-left: 1px solid var(--faq-line);
    margin-bottom: 34px;
  }

  .page-faq .faq-index__list a {
    position: relative;
    border: none;
    border-radius: 0;
    background: transparent;
    padding: 12px 0 12px 18px;
    font-size: 14px;
  }

  .page-faq .faq-index__list a::before {
    content: "";
    position: absolute;
    left: -4.5px;
    top: 50%;
    width: 8px;
    height: 8px;
    margin-top: -4px;
    border-radius: 50%;
    background: var(--cc-sand);
    transition: background .2s var(--cc-ease), transform .2s var(--cc-ease);
  }

  .page-faq .faq-index__list a:hover::before {
    background: var(--cc-coral);
    transform: scale(1.35);
  }

  .page-faq .faq-index__note {
    max-width: 250px;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(48px, 6vw, 84px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-item__a {
    animation: none;
  }

  .page-faq .faq-quick a:hover {
    transform: none;
  }
}