.page-faq {
  overflow-x: clip;
  padding-bottom: clamp(48px, 8vw, 96px);
  color: var(--paper);
  font-family: var(--font-body);
}

.page-faq .breadcrumbs {
  padding-top: clamp(16px, 2.4vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  padding-block: clamp(32px, 5vw, 64px) clamp(30px, 4.5vw, 52px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: calc(clamp(32px, 5vw, 64px) * -1);
  bottom: 0;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  background:
    linear-gradient(118deg, #0b211c 0%, #0b211c 44%, #123d31 44%, #123d31 57%, #061512 57%, #061512 100%);
  clip-path: polygon(0 0, 100% 0, 100% 80%, 0 100%);
}

.page-faq .faq-hero__lead {
  max-width: 40em;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__deck {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 场景索引卡 ---------- */
.page-faq .faq-index {
  border: 1px solid var(--rule);
  background: linear-gradient(160deg, rgba(11, 33, 28, 0.96), rgba(6, 21, 18, 0.92));
  padding: clamp(18px, 2.6vw, 26px);
}

.page-faq .faq-index .annotation {
  color: var(--mist-dim);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__list a {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 4px 12px;
  padding: 12px 10px;
  text-decoration: none;
  color: var(--paper);
  border-left: 2px solid transparent;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  border-left-color: var(--cyan);
  background: rgba(47, 243, 208, 0.06);
}

.page-faq .faq-index__num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--amber);
  padding-top: 2px;
}

.page-faq .faq-index__label {
  font-weight: 700;
  font-size: 15px;
  line-height: 1.4;
}

.page-faq .faq-index__hint {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist-dim);
}

/* ---------- 场景跳转条 ---------- */
.page-faq .scene-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-faq .scene-nav a {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 14px 16px;
  text-decoration: none;
  color: var(--paper);
  border: 1px solid var(--rule);
  background: linear-gradient(180deg, rgba(18, 61, 49, 0.55), rgba(6, 21, 18, 0.7));
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-faq .scene-nav a:hover,
.page-faq .scene-nav a:focus-visible {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .scene-nav__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .scene-nav__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.35;
}

.page-faq .scene-nav__desc {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--mist-dim);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

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

.page-faq .faq-figure--inset {
  margin: 0 0 8px;
}

/* ---------- 场景分栏 ---------- */
.page-faq .scene {
  display: grid;
  gap: clamp(16px, 2.6vw, 30px);
  padding-block: clamp(34px, 5vw, 60px);
  border-top: 1px solid var(--rule);
  scroll-margin-top: 20px;
}

.page-faq .scene:first-of-type {
  margin-top: clamp(30px, 4.6vw, 54px);
}

.page-faq .scene__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(36px, 6vw, 56px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: rgba(184, 201, 195, 0.22);
  -webkit-text-stroke: 1px var(--rule);
}

.page-faq .scene h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .scene__note {
  margin: 10px 0 0;
  max-width: 22em;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist-dim);
}

/* ---------- 问答手风琴 ---------- */
.page-faq .qa {
  border-top: 1px solid var(--rule);
}

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

.page-faq .qa summary {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 16px 4px 16px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15px, 1.55vw, 17.5px);
  line-height: 1.55;
  color: var(--paper);
  transition: color 0.18s ease;
}

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

.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .qa[open] summary::after {
  content: "−";
  color: var(--amber);
}

.page-faq .qa summary:hover {
  color: var(--cyan-soft);
}

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .qa[open] summary {
  color: var(--cyan);
}

.page-faq .qa__body {
  padding: 0 4px 20px 0;
  max-width: 42em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .qa__body p {
  margin: 0 0 12px;
}

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

.page-faq .qa__body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa__body a:hover,
.page-faq .qa__body a:focus-visible {
  color: var(--amber);
}

/* ---------- 底部支持 ---------- */
.page-faq .support {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(44px, 6vw, 78px);
  padding: clamp(22px, 3.6vw, 40px);
  border: 1px solid var(--rule);
  background:
    radial-gradient(circle at 88% 12%, rgba(47, 243, 208, 0.12), transparent 52%),
    linear-gradient(140deg, #0b211c 0%, #123d31 100%);
}

.page-faq .support__lead h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.22;
  color: var(--paper);
}

.page-faq .support__lead p {
  margin: 14px 0 0;
  max-width: 30em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .support__lead .btn {
  margin-top: 22px;
}

.page-faq .support__list {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-faq .support__row {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px dashed rgba(44, 90, 78, 0.85);
}

.page-faq .support__row:last-child {
  border-bottom: 0;
}

.page-faq .support__row dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist-dim);
  padding-top: 2px;
}

.page-faq .support__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .support__row:last-child dd {
  font-family: var(--font-body);
  font-size: 13.5px;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .scene-nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
    align-items: end;
  }

  .page-faq .scene {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 60px);
  }

  .page-faq .support {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }
}

@media (max-width: 520px) {
  .page-faq .faq-hero::before {
    background: linear-gradient(160deg, #0b211c 0%, #0b211c 62%, #123d31 62%, #123d31 100%);
    clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
  }

  .page-faq .support__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .scene-nav a,
  .page-faq .faq-index__list a,
  .page-faq .qa summary {
    transition: none;
  }

  .page-faq .scene-nav a:hover,
  .page-faq .scene-nav a:focus-visible {
    transform: none;
  }
}
<<<END>>>