.page-faq {
  --faq-body: #C8D4CA;
  --faq-line: var(--grid);
  background: var(--ink);
  color: var(--faq-body);
  overflow-x: hidden;
}

.page-faq .faq-hero {
  padding: clamp(30px, 5vw, 68px) 0 clamp(24px, 4vw, 46px);
  border-bottom: 1px solid var(--faq-line);
  background: linear-gradient(180deg, rgba(214, 242, 75, 0.07), rgba(6, 23, 19, 0) 62%);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(38px, 7.4vw, 86px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 14px 0 22px;
  max-width: 15ch;
}

.page-faq .faq-hero .lede {
  max-width: 60ch;
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.72;
  color: var(--faq-body);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px clamp(24px, 4vw, 52px);
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: clamp(18px, 3vw, 24px) 0 0;
  border-top: 1px solid var(--faq-line);
  list-style: none;
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.page-faq .faq-hero__txt {
  font-size: 13.5px;
  color: var(--muted);
}

.page-faq .faq-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 0;
}

.page-faq .section__head .lede {
  max-width: 58ch;
  line-height: 1.7;
}

.page-faq .faq-figure {
  margin: clamp(24px, 4vw, 40px) 0;
}

.page-faq .media-frame {
  max-width: 100%;
}

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

.page-faq .faq-figure-inline {
  margin: 0 0 24px;
  max-width: 520px;
}

/* ---------- 六步自查 ---------- */

.page-faq .faq-steps {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  border: 1px solid var(--faq-line);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-steps__rail {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-right: 1px solid var(--faq-line);
}

.page-faq .faq-step-tab {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 12px 10px;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--faq-line);
  color: var(--muted);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

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

.page-faq .faq-step-tab:hover {
  color: var(--accent-dim);
}

.page-faq .faq-step-tab[aria-selected="true"] {
  background: var(--accent);
  color: var(--ink);
}

.page-faq .faq-step-tab:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.page-faq .faq-step-tab__num {
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: inherit;
}

.page-faq .faq-step-tab__label {
  font-size: 11.5px;
  line-height: 1.35;
  letter-spacing: 0.02em;
}

.page-faq .faq-steps__body {
  padding: clamp(20px, 3.4vw, 42px);
}

.page-faq .faq-step-panel h3 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 8px 0 16px;
}

.page-faq .faq-step-panel p {
  margin: 0 0 14px;
  max-width: 62ch;
  line-height: 1.72;
}

.page-faq .faq-step-panel a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-step-panel a:hover {
  border-bottom-color: var(--accent);
}

.page-faq .faq-step-panel .faq-step-panel__do {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--accent);
  background: var(--surface);
  color: var(--paper);
  font-size: 14.5px;
  line-height: 1.6;
}

/* ---------- 四类问题 ---------- */

.page-faq .faq-kinds {
  display: block;
  border: 1px solid var(--faq-line);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-kinds__tabs {
  display: flex;
  flex-wrap: wrap;
  background: var(--surface);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-kind-tab {
  flex: 1 1 calc(50% - 1px);
  min-width: 0;
  padding: 14px;
  background: transparent;
  border: 0;
  border-right: 1px solid var(--faq-line);
  color: var(--muted);
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0.02em;
  text-align: left;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-kind-tab::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 9px;
  vertical-align: middle;
  background: var(--tagdot, var(--muted));
}

.page-faq .faq-kind-tab:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.page-faq .faq-kind-tab[data-kind="browser"] {
  --tagdot: var(--accent);
}

.page-faq .faq-kind-tab[data-kind="dns"] {
  --tagdot: var(--accent-dim);
}

.page-faq .faq-kind-tab[data-kind="plugin"] {
  --tagdot: var(--warn);
}

.page-faq .faq-kind-tab[data-kind="cache"] {
  --tagdot: var(--muted);
}

.page-faq .faq-kind-tab[aria-selected="true"] {
  background: var(--accent);
  color: var(--ink);
}

.page-faq .faq-kind-tab[aria-selected="true"]::before {
  background: var(--ink);
}

.page-faq .faq-kind-panel {
  padding: clamp(20px, 3.4vw, 40px);
  animation: faq-fade var(--dur) var(--ease);
}

@keyframes faq-fade {
  from { opacity: 0; transform: translateX(-6px); }
  to { opacity: 1; transform: none; }
}

.page-faq .faq-kind-panel__lede {
  margin: 0 0 24px;
  max-width: 66ch;
  line-height: 1.72;
}

.page-faq .faq-symptoms {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-symptom {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-symptom__what {
  color: var(--paper);
  font-size: 15.5px;
  line-height: 1.55;
}

.page-faq .faq-symptom__what::before {
  content: "›";
  font-family: var(--font-mono);
  color: var(--accent);
  margin-right: 8px;
}

.page-faq .faq-symptom__how {
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.6;
}

.page-faq .faq-symptom__how::before {
  content: "→";
  font-family: var(--font-mono);
  color: var(--accent-dim);
  margin-right: 8px;
}

/* ---------- 高频问答 ---------- */

.page-faq .faq-qa__list {
  border-top: 1px solid var(--faq-line);
  margin-top: clamp(20px, 3vw, 32px);
}

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

.page-faq .faq-q__ask {
  display: flex;
  gap: 14px;
  margin: 0;
  padding: clamp(16px, 2.4vw, 22px) 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: clamp(17px, 2.1vw, 23px);
  line-height: 1.3;
  color: var(--paper);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-q__ask::before {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.9em;
  line-height: 1.35;
  color: var(--accent);
}

.page-faq .faq-q[open] > .faq-q__ask::before {
  content: "–";
}

.page-faq .faq-q__ask:hover {
  color: var(--accent);
}

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

.page-faq .faq-q__answer {
  padding: 0 0 clamp(16px, 2.4vw, 24px) 30px;
}

.page-faq .faq-q__answer p {
  margin: 0 0 10px;
  max-width: 66ch;
  line-height: 1.72;
}

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

.page-faq .faq-q__answer a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line);
}

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

/* ---------- 人工协助 ---------- */

.page-faq .faq-assist {
  display: grid;
  gap: clamp(22px, 4vw, 48px);
  padding: clamp(24px, 4vw, 48px);
  background: var(--surface);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-assist .board__title {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 10px 0 20px;
}

.page-faq .faq-assist__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: faq-a;
}

.page-faq .faq-assist__list li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 0;
  border-top: 1px solid var(--faq-line);
  font-size: 15px;
  line-height: 1.6;
}

.page-faq .faq-assist__list li::before {
  counter-increment: faq-a;
  content: counter(faq-a, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--accent);
  padding-top: 3px;
}

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

.page-faq .faq-assist__side {
  border-top: 1px solid var(--faq-line);
  padding-top: 20px;
}

.page-faq .faq-assist__side p {
  margin: 0 0 16px;
  line-height: 1.72;
  max-width: 46ch;
}

.page-faq .faq-assist__side a {
  color: var(--accent);
}

.page-faq .faq-assist__side .note {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
  margin-bottom: 0;
}

/* ---------- 响应式 ---------- */

@media (max-width: 480px) {
  .page-faq .faq-steps {
    grid-template-columns: 78px minmax(0, 1fr);
  }

  .page-faq .faq-step-tab {
    padding: 10px 8px;
  }

  .page-faq .faq-step-tab__num {
    font-size: 20px;
  }

  .page-faq .faq-step-tab__label {
    font-size: 10.5px;
  }

  .page-faq .faq-hero h1 {
    font-size: clamp(30px, 9vw, 44px);
  }
}

@media (min-width: 860px) {
  .page-faq .faq-symptom {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
    padding: 18px 0;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-steps {
    grid-template-columns: 200px minmax(0, 1fr);
  }

  .page-faq .faq-step-tab {
    padding: 22px 20px;
    gap: 10px;
  }

  .page-faq .faq-step-tab__num {
    font-size: 38px;
  }

  .page-faq .faq-step-tab__label {
    font-size: 13px;
  }

  .page-faq .faq-kind-tab {
    flex: 1 1 0;
    font-size: 18px;
    text-align: center;
    padding: 16px 12px;
  }

  .page-faq .faq-assist {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-faq .faq-assist__side {
    border-top: 0;
    border-left: 1px solid var(--faq-line);
    padding: 6px 0 0 clamp(20px, 3vw, 34px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step-tab,
  .page-faq .faq-kind-tab,
  .page-faq .faq-q__ask {
    transition: none;
  }

  .page-faq .faq-kind-panel {
    animation: none;
  }
}
<<<END>>>