.page-faq {
  --faq-stripe: rgba(20, 224, 176, 0.08);
  --faq-hair: rgba(20, 224, 176, 0.45);
  padding-bottom: clamp(48px, 8vw, 110px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  max-width: 66ch;
  padding: clamp(24px, 5vw, 54px) 0 clamp(20px, 3.4vw, 32px);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 900;
  font-size: clamp(32px, 7vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
}

.page-faq .faq-hero-media {
  margin: 8px 0 clamp(38px, 6.5vw, 76px);
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1000 / 600;
  object-fit: cover;
  background-color: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  filter: saturate(0.86) contrast(1.06);
}

/* ---------- 问答板 ---------- */
.page-faq .faq-board {
  border-top: 1px solid var(--line);
  padding-top: clamp(26px, 4.5vw, 48px);
}

.page-faq .faq-tabs {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
}

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

.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-family: var(--font-index);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-faq .faq-tab-list {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
}

.page-faq .faq-tab-list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 11px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: transparent;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.3;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease),
    background-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-faq .faq-tab:hover {
  color: var(--paper);
  border-color: var(--cyan-soft);
}

.page-faq .faq-tab[aria-selected="true"] {
  color: var(--paper);
  background-color: var(--panel);
  border-color: var(--cyan);
  box-shadow: inset 0 0 0 1px rgba(20, 224, 176, 0.22);
}

.page-faq .faq-tab-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.page-faq .faq-tab[aria-selected="true"] .faq-tab-num {
  color: var(--cyan-soft);
}

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

.page-faq .faq-panel {
  outline: none;
  animation: faqPanelIn 0.28s var(--ease) both;
}

.page-faq .faq-panel:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 6px;
}

@keyframes faqPanelIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--line);
  border-left: 3px solid transparent;
  transition: border-color 0.24s var(--ease), background-image 0.3s var(--ease);
}

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

.page-faq .faq-item[open] {
  border-left-color: var(--cyan);
  background-image: linear-gradient(90deg, var(--faq-stripe), rgba(20, 224, 176, 0) 58%);
}

.page-faq .faq-q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 19px 4px 19px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--paper);
  font-size: clamp(15px, 1.5vw, 17px);
  font-weight: 600;
  line-height: 1.6;
  -webkit-tap-highlight-color: transparent;
  transition: color 0.2s var(--ease);
}

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

.page-faq .faq-q::marker {
  content: "";
}

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

.page-faq .faq-q-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-faq .faq-item[open] .faq-q-num {
  color: var(--cyan);
}

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

.page-faq .faq-q-toggle {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-q-toggle::before {
  content: "+";
}

.page-faq .faq-item[open] .faq-q-toggle {
  color: var(--flare);
}

.page-faq .faq-item[open] .faq-q-toggle::before {
  content: "−";
}

.page-faq .faq-a {
  max-width: 70ch;
  padding: 2px 20px 26px 16px;
}

.page-faq .faq-a p {
  margin: 0 0 11px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

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

.page-faq .faq-a .faq-key {
  color: var(--paper);
  font-weight: 500;
}

.page-faq .faq-a .faq-key::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 9px;
  vertical-align: 0.18em;
  background-color: var(--flare);
}

.page-faq .faq-a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-hair);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-a a:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* ---------- 终端对照图 ---------- */
.page-faq .faq-terminal-media {
  margin: 0 0 26px;
  max-width: 100%;
}

.page-faq .faq-terminal-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 900 / 700;
  object-fit: cover;
  background-color: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  filter: saturate(0.85) contrast(1.05);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-tail {
  margin-top: clamp(46px, 7.5vw, 96px);
  border-top: 1px solid var(--line);
  padding-top: clamp(30px, 5vw, 56px);
}

.page-faq .faq-tail h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.15;
  color: var(--paper);
}

.page-faq .faq-tail-copy {
  margin: 14px 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.page-faq .faq-tail .u-mono {
  color: var(--cyan-soft);
}

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

.page-faq .faq-tail-line {
  height: clamp(88px, 14vw, 148px);
  margin-top: clamp(42px, 7vw, 84px);
  border-radius: var(--radius);
  background-image:
    repeating-linear-gradient(118deg, rgba(20, 224, 176, 0.22) 0 1px, transparent 1px 44px),
    repeating-linear-gradient(62deg, rgba(20, 224, 176, 0.1) 0 1px, transparent 1px 68px),
    linear-gradient(90deg, var(--panel-2), var(--panel) 55%, var(--ink));
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-tabs {
    grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-index-title {
    margin-bottom: 16px;
  }

  .page-faq .faq-tab-list {
    flex-direction: column;
    gap: 2px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-tab {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    white-space: normal;
  }

  .page-faq .faq-tab[aria-selected="true"] {
    box-shadow: inset 3px 0 0 var(--cyan);
  }

  .page-faq .faq-terminal-media {
    max-width: 560px;
  }

  .page-faq .faq-q {
    padding: 22px 8px 22px 20px;
  }

  .page-faq .faq-a {
    padding: 2px 28px 30px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-panel {
    animation: none;
  }

  .page-faq .faq-item,
  .page-faq .faq-q,
  .page-faq .faq-tab,
  .page-faq .faq-a a {
    transition: none;
  }
}
<<<END>>>