.page-faq {
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--indigo);
  color: var(--warm);
  padding: clamp(44px, 7vw, 84px) 0 clamp(56px, 8vw, 100px);
  overflow: hidden;
}

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

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(120% 92% at 82% 4%, rgba(74, 59, 107, .58), transparent 64%),
    radial-gradient(90% 70% at 6% 96%, rgba(178, 58, 46, .22), transparent 66%),
    linear-gradient(180deg, rgba(14, 27, 54, .68), rgba(14, 27, 54, .95));
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 2;
}

.page-faq .faq-hero .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(251, 247, 240, .62);
}

.page-faq .faq-hero .breadcrumbs a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-fast);
}

.page-faq .faq-hero .breadcrumbs a:hover {
  color: var(--gold);
}

.page-faq .faq-hero__title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2.4rem, 7.5vw, 4.5rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  margin: 20px 0 22px;
}

.page-faq .faq-hero__lead {
  font-size: 17px;
  line-height: 1.85;
  max-width: 34em;
  margin: 0 0 30px;
  color: rgba(251, 247, 240, .86);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-faq .faq-hero__meta span {
  padding: 7px 15px;
  border: 1px solid rgba(235, 217, 180, .32);
  border-radius: var(--r-pill);
}

.page-faq .faq-hero__meta strong {
  font-weight: 500;
  color: var(--gold);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(48px, 7vw, 96px) var(--gutter) clamp(64px, 9vw, 120px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-faq .faq-stream {
  min-width: 0;
  max-width: 720px;
}

/* ---------- 侧边索引 ---------- */
.page-faq .faq-side {
  display: none;
}

.page-faq .faq-side__title {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--brick);
  margin-bottom: 12px;
}

.page-faq .chapter-index {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 16px;
  border-left: 1px solid var(--mist);
}

.page-faq .chapter-index__link {
  display: block;
  padding: 6px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  line-height: 1.5;
  color: var(--ink);
  opacity: .5;
  text-decoration: none;
  transition: color var(--t-fast), opacity var(--t-fast), transform var(--t-fast);
}

.page-faq .chapter-index__link:hover {
  opacity: 1;
  color: var(--brick);
  transform: translateX(2px);
}

.page-faq .chapter-index__link[data-active] {
  opacity: 1;
  color: var(--brick);
  font-weight: 500;
}

/* ---------- 章节公用 ---------- */
.page-faq .faq-sec {
  margin-bottom: clamp(56px, 8vw, 92px);
}

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

.page-faq .faq-sec__head {
  margin-bottom: 26px;
}

.page-faq .faq-sec__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
  margin-bottom: 10px;
}

.page-faq .faq-sec__title {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.2vw, 2rem);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--indigo);
  margin: 0 0 10px;
}

.page-faq .faq-sec__desc {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(42, 46, 54, .7);
  margin: 0;
  max-width: 34em;
}

/* ---------- 搜索 ---------- */
.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 8px 8px 22px;
  margin-bottom: 26px;
  background: var(--warm);
  border: 1px solid var(--mist);
  border-radius: var(--r-pill);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.page-faq .faq-search:focus-within {
  border-color: var(--gold);
  box-shadow: 0 0 0 4px rgba(212, 162, 76, .14);
}

.page-faq .faq-search__icon {
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  border: 2px solid var(--indigo);
  border-radius: 50%;
  opacity: .45;
  position: relative;
}

.page-faq .faq-search__icon::after {
  content: "";
  position: absolute;
  right: -6px;
  bottom: -5px;
  width: 8px;
  height: 2px;
  background: var(--indigo);
  border-radius: 2px;
  transform: rotate(45deg);
}

.page-faq .faq-search__input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 10px 0;
  border: 0;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--ink);
  outline: none;
}

.page-faq .faq-search__input::placeholder {
  color: rgba(42, 46, 54, .42);
}

.page-faq .faq-search__count {
  flex: 0 0 auto;
  padding: 7px 15px;
  border-radius: var(--r-pill);
  background: var(--mist);
  color: var(--indigo);
  font-size: 12px;
  letter-spacing: .08em;
}

/* ---------- 主题清单 ---------- */
.page-faq .faq-themes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .faq-theme {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 20px;
  background: var(--warm);
  border: 1px solid var(--mist);
  border-radius: var(--r-md);
  transition: border-color var(--t-fast), transform var(--t-fast);
}

.page-faq .faq-theme:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}

.page-faq .faq-theme__num {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--brick);
  padding-top: 4px;
}

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

.page-faq .faq-theme__name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.4;
  color: var(--indigo);
  margin: 0 0 5px;
}

.page-faq .faq-theme__desc {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(42, 46, 54, .7);
  margin: 0;
}

.page-faq .faq-theme__count {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--celadon);
  padding-top: 4px;
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--mist);
}

.page-faq .qa {
  border-bottom: 1px solid var(--mist);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--indigo);
  transition: color var(--t-fast);
}

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

.page-faq .qa__q:hover {
  color: var(--brick);
}

.page-faq .qa__idx {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--gold);
}

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

.page-faq .qa__mark {
  flex: 0 0 auto;
  position: relative;
  align-self: center;
  width: 16px;
  height: 16px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--brick);
  border-radius: 2px;
  transition: transform var(--t-mid), opacity var(--t-mid);
}

.page-faq .qa__mark::before {
  top: 50%;
  left: 0;
  width: 16px;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .qa__mark::after {
  left: 50%;
  top: 0;
  width: 2px;
  height: 16px;
  transform: translateX(-50%);
}

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

.page-faq .qa__a {
  padding: 0 0 24px 34px;
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.88;
  color: rgba(42, 46, 54, .82);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 30px;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--indigo-2);
}

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

.page-faq .faq-figure .media-frame__caption {
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mist);
  background: var(--indigo-2);
}

/* ---------- 五章速览 ---------- */
.page-faq .faq-guide {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-guide__item {
  position: relative;
  padding: 20px 0 20px 26px;
  border-bottom: 1px solid var(--mist);
}

.page-faq .faq-guide__item:first-child {
  border-top: 1px solid var(--mist);
}

.page-faq .faq-guide__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 26px;
  bottom: 26px;
  width: 2px;
  border-radius: 2px;
  background: var(--mist);
  transition: background var(--t-fast);
}

.page-faq .faq-guide__item:hover::before {
  background: var(--gold);
}

.page-faq .faq-guide__num {
  display: block;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--brick);
  margin-bottom: 7px;
}

.page-faq .faq-guide__name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.125rem;
  line-height: 1.4;
  color: var(--indigo);
  margin: 0 0 6px;
}

.page-faq .faq-guide__desc {
  font-size: 14px;
  line-height: 1.78;
  color: rgba(42, 46, 54, .74);
  margin: 0;
  max-width: 34em;
}

/* ---------- 账号与安全 ---------- */
.page-faq .faq-safety {
  display: grid;
  gap: 14px;
}

.page-faq .faq-safety__item {
  padding: 20px 22px 22px;
  background: var(--warm);
  border: 1px solid var(--mist);
  border-left: 3px solid var(--celadon);
  border-radius: var(--r-md);
}

.page-faq .faq-safety__q {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--indigo);
  margin: 0 0 9px;
}

.page-faq .faq-safety__a {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(42, 46, 54, .8);
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-help {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 48px);
  border-radius: var(--r-lg);
  background: var(--indigo);
  color: var(--warm);
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(80% 70% at 92% 8%, rgba(212, 162, 76, .26), transparent 62%),
    radial-gradient(70% 60% at 8% 100%, rgba(178, 58, 46, .22), transparent 66%);
  pointer-events: none;
}

.page-faq .faq-help > * {
  position: relative;
}

.page-faq .faq-help__title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  line-height: 1.28;
  letter-spacing: -.01em;
  margin: 0 0 12px;
}

.page-faq .faq-help__lead {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(251, 247, 240, .82);
  margin: 0 0 26px;
  max-width: 32em;
}

.page-faq .faq-help__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0 0 26px;
  padding: 0;
  background: rgba(235, 217, 180, .22);
  border-radius: var(--r-sm);
  overflow: hidden;
}

.page-faq .faq-help__fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  background: rgba(14, 27, 54, .82);
}

.page-faq .faq-help__fact dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-faq .faq-help__fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-faq .faq-help__sub {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(251, 247, 240, .78);
  margin: 0 0 12px;
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(251, 247, 240, .88);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--celadon);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-themes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-help__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-help__fact {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

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

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: 72px;
    align-items: start;
  }

  .page-faq .faq-side {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-faq .faq-hero {
    padding-bottom: clamp(72px, 8vw, 116px);
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-stream {
    max-width: 760px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .faq-theme,
  .page-faq .chapter-index__link {
    transition: none;
  }

  .page-faq .faq-theme:hover {
    transform: none;
  }

  .page-faq .chapter-index__link:hover {
    transform: none;
  }
}
<<<END>>>