.page-faq {
  --faq-rule: #2A2A34;
  --faq-soft: rgba(232, 18, 60, 0.08);
  --faq-cyan-soft: rgba(23, 224, 212, 0.12);
  padding-bottom: 0;
  overflow-x: hidden;
}

.page-faq .breadcrumb {
  padding-top: 20px;
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(36px, 5.5vw, 68px);
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -30% 46% 30% -14%;
  background: radial-gradient(circle at 34% 36%, var(--glow), transparent 64%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 3.6vw, 44px);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(220px, 0.72fr);
    align-items: end;
  }
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--text);
  max-width: 24ch;
}

.page-faq .faq-hero__intro {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--muted);
}

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

.page-faq .faq-snapshot {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px 20px;
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-sm);
  background: linear-gradient(170deg, var(--faq-soft), rgba(22, 22, 29, 0.92));
  position: relative;
}

.page-faq .faq-snapshot::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 44px;
  height: 2px;
  background: var(--red);
}

.page-faq .faq-snapshot__tag {
  color: var(--gold);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
}

.page-faq .faq-snapshot__value {
  font-family: var(--font-display);
  font-size: var(--fs-20);
  color: var(--text);
  letter-spacing: -0.01em;
}

.page-faq .faq-snapshot__sub {
  color: var(--muted);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
}

/* ============ 分类索引 ============ */
.page-faq .faq-categories {
  padding: clamp(40px, 6vw, 76px) 0 clamp(30px, 4vw, 52px);
}

.page-faq .faq-categories__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-bottom: clamp(24px, 3.4vw, 40px);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--faq-rule);
}

@media (min-width: 760px) {
  .page-faq .faq-categories__head {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }
}

.page-faq .faq-categories__num {
  color: var(--cyan);
  font-size: var(--fs-14);
  letter-spacing: 0.08em;
}

.page-faq .faq-categories__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 32px);
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .faq-categories__head p {
  margin: 12px 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: var(--fs-16);
  line-height: 1.8;
}

.page-faq .faq-cat-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-rule);
  border: 1px solid var(--faq-rule);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 620px) {
  .page-faq .faq-cat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-cat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-cat {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 20px;
  background: var(--black);
  position: relative;
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-cat::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 24px;
  background: var(--red);
  transition: width var(--dur) var(--ease);
}

.page-faq .faq-cat:hover::before,
.page-faq .faq-cat:focus-within::before {
  width: 24px;
}

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-within {
  background: var(--panel);
}

.page-faq .faq-cat__num {
  color: var(--cyan);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
}

.page-faq .faq-cat h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-20);
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-cat p {
  margin: 0;
  color: var(--muted);
  font-size: var(--fs-14);
  line-height: 1.8;
  flex: 1 1 auto;
}

.page-faq .faq-cat__count {
  color: var(--gold);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
}

.page-faq .faq-cat__link {
  align-self: flex-start;
  font-size: var(--fs-14);
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-cat__link:hover,
.page-faq .faq-cat__link:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ============ 主体两栏 ============ */
.page-faq .faq-body {
  padding: clamp(36px, 5.5vw, 72px) 0 clamp(46px, 6vw, 88px);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
}

@media (min-width: 980px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: clamp(36px, 4.6vw, 64px);
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 96px;
  }
}

.page-faq .faq-side {
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-sm);
  padding: 18px 16px;
  background: rgba(22, 22, 29, 0.6);
}

.page-faq .faq-side__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-faq .faq-side__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-rule);
}

.page-faq .faq-side__list li {
  background: transparent;
}

.page-faq .faq-side__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 8px;
  color: var(--text);
  font-size: var(--fs-14);
  line-height: 1.5;
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.page-faq .faq-side__list a .mono {
  color: var(--muted);
  font-size: var(--fs-12);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-side__list a:hover,
.page-faq .faq-side__list a:focus-visible {
  border-left-color: var(--red);
  background: rgba(232, 18, 60, 0.06);
  color: #ffffff;
}

.page-faq .faq-side__list a:hover .mono,
.page-faq .faq-side__list a:focus-visible .mono {
  color: var(--red);
}

/* ============ 章节块 ============ */
.page-faq .faq-topic {
  display: grid;
  gap: clamp(34px, 5vw, 68px);
}

.page-faq .faq-block {
  scroll-margin-top: 96px;
  padding-bottom: clamp(28px, 4vw, 48px);
  border-bottom: 1px solid var(--faq-rule);
}

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

.page-faq .faq-block--tint {
  padding: clamp(24px, 3.4vw, 36px);
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-sm);
  background: linear-gradient(180deg, rgba(22, 22, 29, 0.78), rgba(10, 10, 15, 0.92));
}

.page-faq .faq-block__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  margin-bottom: 22px;
}

@media (min-width: 700px) {
  .page-faq .faq-block__head {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
  }
}

.page-faq .faq-block__num {
  color: var(--red);
  font-size: var(--fs-14);
  letter-spacing: 0.08em;
}

.page-faq .faq-block__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 34px);
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .faq-block__head p {
  margin: 12px 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: var(--fs-16);
  line-height: 1.8;
}

.page-faq .faq-figure {
  margin: 0 0 26px;
}

/* ============ 步骤 ============ */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-rule);
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-sm);
  overflow: hidden;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding: 22px 20px;
  background: var(--black);
}

@media (min-width: 720px) {
  .page-faq .faq-step {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 20px;
    padding: 24px 24px;
  }
}

.page-faq .faq-step__dial {
  position: relative;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: var(--cyan);
  flex: 0 0 auto;
}

.page-faq .faq-step__dial svg {
  position: absolute;
  inset: 0;
  width: 48px;
  height: 48px;
}

.page-faq .faq-step__num {
  position: relative;
  font-size: var(--fs-14);
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-faq .faq-step__body h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: var(--fs-20);
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-step__do {
  margin: 0;
  color: var(--text);
  font-size: var(--fs-16);
  line-height: 1.8;
}

.page-faq .faq-step__result {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: var(--fs-14);
  line-height: 1.8;
}

.page-faq .faq-step__note {
  margin: 14px 0 0;
  padding: 2px 0 2px 14px;
  border-left: 2px solid var(--gold);
  color: var(--muted);
  font-size: var(--fs-14);
  line-height: 1.75;
}

/* ============ 排查清单 ============ */
.page-faq .faq-check {
  display: grid;
  gap: 22px;
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 860px) {
  .page-faq .faq-check {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    background: var(--faq-rule);
    border: 1px solid var(--faq-rule);
    border-radius: var(--r-sm);
    overflow: hidden;
  }
}

.page-faq .faq-check__lane {
  padding: 20px;
  background: var(--black);
}

@media (min-width: 860px) {
  .page-faq .faq-check__lane {
    padding: 22px 20px;
  }
}

.page-faq .faq-check__lane h3 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: var(--fs-16);
  letter-spacing: -0.01em;
  color: var(--cyan);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-check__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-check__list li {
  position: relative;
  padding-left: 24px;
  color: var(--text);
  font-size: var(--fs-14);
  line-height: 1.8;
}

.page-faq .faq-check__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 14px;
  height: 1px;
  background: var(--cyan);
}

/* ============ 版本对照 ============ */
.page-faq .faq-compare {
  display: grid;
  gap: 1px;
  grid-template-columns: minmax(0, 1fr);
  background: var(--faq-rule);
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-sm);
  overflow: hidden;
}

@media (min-width: 720px) {
  .page-faq .faq-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-compare__col {
  padding: 22px 20px;
  background: var(--black);
}

.page-faq .faq-compare__col--now {
  background: linear-gradient(180deg, rgba(232, 18, 60, 0.09), rgba(22, 22, 29, 0.96));
  box-shadow: inset 0 2px 0 0 var(--red);
}

.page-faq .faq-compare__tag {
  display: block;
  margin-bottom: 14px;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq .faq-compare__col--now .faq-compare__tag {
  color: var(--red);
}

.page-faq .faq-compare__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-compare__list li {
  position: relative;
  padding-left: 16px;
  color: var(--text);
  font-size: var(--fs-14);
  line-height: 1.75;
}

.page-faq .faq-compare__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: var(--faq-rule);
}

.page-faq .faq-compare__col--now .faq-compare__list li::before {
  background: var(--cyan);
}

.page-faq .faq-compare__note {
  margin-top: 24px;
  padding: 20px;
  border-left: 2px solid var(--cyan);
  background: var(--faq-cyan-soft);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

.page-faq .faq-compare__note h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: var(--fs-16);
  color: var(--text);
}

.page-faq .faq-compare__note p {
  margin: 0;
  color: var(--text);
  font-size: var(--fs-14);
  line-height: 1.85;
}

.page-faq .faq-compare__note p + p {
  margin-top: 10px;
}

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

/* ============ 设置项 ============ */
.page-faq .faq-settings {
  margin: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-rule);
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-sm);
  overflow: hidden;
}

.page-faq .faq-settings__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 20px;
  background: var(--black);
}

@media (min-width: 760px) {
  .page-faq .faq-settings__row {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 26px;
    padding: 22px 24px;
  }
}

.page-faq .faq-settings__row dt {
  font-family: var(--font-display);
  font-size: var(--fs-16);
  letter-spacing: -0.01em;
  color: var(--text);
}

@media (min-width: 760px) {
  .page-faq .faq-settings__row dt {
    border-left: 2px solid var(--red);
    padding-left: 12px;
  }
}

.page-faq .faq-settings__row dd {
  margin: 0;
}

.page-faq .faq-settings__row dd p {
  margin: 0;
  color: var(--text);
  font-size: var(--fs-14);
  line-height: 1.85;
}

.page-faq .faq-settings__row .faq-settings__tip {
  margin-top: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--gold);
  color: var(--muted);
  font-size: var(--fs-14);
  line-height: 1.75;
}

/* ============ 人工协助 ============ */
.page-faq .faq-cta {
  padding: clamp(44px, 6vw, 84px) 0 clamp(56px, 7vw, 96px);
  border-top: 1px solid var(--faq-rule);
  background: linear-gradient(180deg, rgba(232, 18, 60, 0.06), transparent 46%);
}

.page-faq .faq-cta__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
}

@media (min-width: 900px) {
  .page-faq .faq-cta__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.85fr);
    gap: clamp(40px, 5vw, 72px);
    align-items: start;
  }
}

.page-faq .faq-cta__tag {
  display: block;
  margin-bottom: 12px;
  color: var(--red);
  font-size: var(--fs-14);
  letter-spacing: 0.08em;
}

.page-faq .faq-cta__lead h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text);
  max-width: 22ch;
}

.page-faq .faq-cta__lead p {
  margin: 16px 0 0;
  max-width: 52ch;
  color: var(--muted);
  font-size: var(--fs-16);
  line-height: 1.85;
}

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

.page-faq .faq-cta__box {
  padding: 24px 22px 22px;
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-sm);
  background: var(--panel);
  position: relative;
}

.page-faq .faq-cta__box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 52px;
  height: 2px;
  background: var(--red);
}

.page-faq .faq-cta__box-tag {
  display: block;
  color: var(--gold);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.page-faq .faq-cta__tpl {
  margin: 0 0 20px;
  padding: 14px 14px;
  border: 1px dashed var(--faq-rule);
  border-radius: var(--r-xs);
  background: var(--black);
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: 0.02em;
  color: var(--cyan);
  line-height: 1.6;
  word-break: break-all;
}

.page-faq .faq-cta__meta {
  margin: 0 0 20px;
  display: grid;
  gap: 12px;
}

.page-faq .faq-cta__meta div {
  display: grid;
  gap: 4px;
}

.page-faq .faq-cta__meta dt {
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq .faq-cta__meta dd {
  margin: 0;
  color: var(--text);
  font-size: var(--fs-14);
  line-height: 1.7;
  word-break: break-word;
}

/* ============ 小屏收束 ============ */
@media (max-width: 480px) {
  .page-faq .faq-hero__actions .btn {
    width: 100%;
    text-align: center;
  }

  .page-faq .faq-cat,
  .page-faq .faq-step,
  .page-faq .faq-check__lane,
  .page-faq .faq-compare__col,
  .page-faq .faq-settings__row {
    padding-left: 16px;
    padding-right: 16px;
  }

  .page-faq .faq-side {
    padding: 14px 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-cat::before,
  .page-faq .faq-side__list a,
  .page-faq .faq-cat__link {
    transition: none;
  }
}
<<<END>>>