.page-faq {
  --faq-line-dark: rgba(42, 49, 61, 0.9);
  --faq-line-paper: rgba(26, 27, 30, 0.14);
  --faq-muted-paper: #5a5c63;
  --faq-teal: #0b6e60;
  background: var(--void);
  color: var(--text);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(1.75rem, 5vw, 3.5rem) clamp(2rem, 5vw, 3rem);
  background:
    radial-gradient(120% 90% at 85% -10%, rgba(123, 92, 255, 0.28), transparent 62%),
    radial-gradient(90% 70% at 0% 0%, rgba(47, 243, 214, 0.12), transparent 60%),
    var(--void);
  border-bottom: 1px solid var(--grid);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.3;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at 25% 0%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse at 25% 0%, #000 0%, transparent 78%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: end;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.2vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0 0 0.9rem;
  color: var(--text);
}

.page-faq .faq-hero__lede {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 1.7vw, 1.16rem);
  line-height: 1.85;
  color: var(--muted);
  max-width: 60ch;
  margin: 0;
}

.page-faq .faq-hero__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--grid);
  background: rgba(18, 22, 31, 0.78);
  clip-path: var(--clip-panel);
}

.page-faq .faq-hero__meta-item {
  padding: 0.85rem 0.9rem;
  border-left: 1px solid var(--grid);
  display: grid;
  gap: 0.25rem;
}

.page-faq .faq-hero__meta-item:first-child {
  border-left: 0;
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  color: var(--cyan);
  letter-spacing: 0.04em;
}

.page-faq .faq-hero__label {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.page-faq .faq-hero__media {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding-block: clamp(2.25rem, 6vw, 4.5rem);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 3vw, 2.25rem);
  align-items: start;
}

/* ---------- 左侧目录 ---------- */
.page-faq .faq-toc {
  border: 1px solid var(--grid);
  border-left: 2px solid var(--violet);
  background: linear-gradient(165deg, rgba(123, 92, 255, 0.16), rgba(10, 12, 16, 0.94) 62%);
  padding: 1.1rem 1rem 1.2rem;
}

.page-faq .faq-toc .toc__title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 0.85rem;
}

.page-faq .faq-toc .toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-toc .toc__link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.55rem;
  font-size: 0.94rem;
  color: var(--text);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-toc .toc__link:hover,
.page-faq .faq-toc .toc__link:focus-visible {
  background: rgba(47, 243, 214, 0.1);
  border-left-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .faq-toc .toc__link[aria-current="true"] {
  background: rgba(47, 243, 214, 0.14);
  border-left-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .faq-toc__n {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.page-faq .faq-toc .toc__link:hover .faq-toc__n,
.page-faq .faq-toc .toc__link[aria-current="true"] .faq-toc__n {
  color: var(--cyan);
}

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

.page-faq .faq-toc__count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  border: 1px solid var(--grid);
  padding: 0 0.35rem;
  line-height: 1.6;
}

.page-faq .faq-toc__hint {
  margin: 0.9rem 0 0;
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px dashed var(--grid);
  padding-top: 0.75rem;
}

/* ---------- 右侧纸色问答带 ---------- */
.page-faq .faq-sheet {
  background: var(--paper);
  color: var(--ink);
  padding: clamp(1.25rem, 3.4vw, 2.75rem);
  clip-path: var(--clip-panel);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(1.75rem, 4.5vw, 3rem);
  padding-top: clamp(1.75rem, 4.5vw, 3rem);
  border-top: 1px solid var(--faq-line-paper);
}

.page-faq .faq-group {
  scroll-margin-top: 6rem;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.page-faq .faq-group__n {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.1rem 0.45rem;
  background: var(--ink);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
}

.page-faq .faq-group__title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.8vw, 1.85rem);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0;
  color: var(--ink);
}

.page-faq .faq-group__count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--faq-muted-paper);
  margin-left: auto;
}

.page-faq .faq-group__lead {
  font-family: var(--font-serif);
  font-size: 0.98rem;
  line-height: 1.75;
  color: #3c3e44;
  margin: 0.55rem 0 1.1rem;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  border-bottom: 1px solid var(--faq-line-paper);
}

.page-faq .qa:first-of-type {
  border-top: 1px solid var(--faq-line-paper);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.95rem 0;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: clamp(0.98rem, 1.6vw, 1.05rem);
  line-height: 1.6;
  color: var(--ink);
  transition: color 0.2s ease;
}

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

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

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--faq-teal);
  outline-offset: 2px;
}

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

.page-faq .qa__q::after {
  content: "";
  flex: 0 0 13px;
  width: 13px;
  height: 13px;
  margin-left: auto;
  margin-top: 0.42em;
  background:
    linear-gradient(var(--ink), var(--ink)) center / 13px 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) center / 2px 13px no-repeat;
  transition: transform 0.25s ease;
}

.page-faq .qa[open] .qa__q::after {
  transform: rotate(45deg);
}

.page-faq .qa__a {
  padding: 0 0 1.15rem;
  max-width: 64ch;
}

.page-faq .qa__a p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.85;
  color: #2b2d33;
}

.page-faq .qa__go {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--faq-teal);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  transition: color 0.2s ease, gap 0.2s ease;
}

.page-faq .qa__go::after {
  content: "→";
}

.page-faq .qa__go:hover,
.page-faq .qa__go:focus-visible {
  color: var(--ink);
  gap: 0.6rem;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 1.35rem 0 1.2rem;
}

.page-faq .faq-figure figcaption {
  margin-top: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--faq-muted-paper);
}

/* ---------- 结尾 ---------- */
.page-faq .faq-cta {
  padding-block: clamp(2.25rem, 6vw, 4rem);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(47, 243, 214, 0.14), transparent 60%),
    var(--blueprint);
  border-top: 1px solid var(--grid);
}

.page-faq .faq-cta__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: center;
  border-left: 2px solid var(--cyan);
  padding-left: clamp(1rem, 3vw, 1.75rem);
}

.page-faq .faq-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0 0 0.6rem;
  color: var(--text);
}

.page-faq .faq-cta p {
  margin: 0;
  font-size: 0.97rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 58ch;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero__meta-item {
    padding: 1rem 1.1rem;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1.5fr) auto;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
    gap: clamp(1.5rem, 4vw, 3rem);
  }

  .page-faq .faq-layout {
    grid-template-columns: 258px minmax(0, 1fr);
    gap: clamp(1.5rem, 3.5vw, 3rem);
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 5rem;
  }

  .page-faq .qa__a {
    padding-left: 0.15rem;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-layout {
    grid-template-columns: 290px minmax(0, 1fr);
  }
}
<<<END>>>