.page-faq {
  background: var(--ink);
  color: var(--body-text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 3.4vw, 40px) 0 clamp(44px, 6vw, 88px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 80% at 88% -12%, rgba(25, 227, 177, 0.14), transparent 62%),
    radial-gradient(90% 70% at -6% 112%, rgba(255, 90, 31, 0.16), transparent 58%),
    linear-gradient(180deg, var(--ink-deep) 0%, var(--ink) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(143, 163, 184, 0.10) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, rgba(143, 163, 184, 0.10) 0 1px, transparent 1px 64px);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 88%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  top: -22%;
  width: 54%;
  height: 152%;
  pointer-events: none;
  transform: skewX(-12deg);
  background: linear-gradient(160deg, rgba(255, 90, 31, 0.18), rgba(255, 90, 31, 0) 62%);
}

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(22px, 3vw, 36px);
}

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

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 6.2vw, 3.9rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--bone);
  margin: 0.28em 0 0.5em;
  max-width: 20em;
}

.page-faq .faq-hero__lede {
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  line-height: 1.75;
  color: var(--body-text);
  max-width: 44em;
  margin: 0;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .faq-hero__side {
  border-top: 1px solid var(--line-2);
  padding-top: 16px;
}

.page-faq .faq-hero__side-note {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-hero__facts li {
  background: rgba(16, 21, 28, 0.82);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .faq-hero__k {
  font-size: var(--fs-label);
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-faq .faq-hero__v {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--teal);
  line-height: 1;
}

/* ---------- 正文骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(24px, 4vw, 36px);
  padding-top: clamp(32px, 5vw, 64px);
  padding-bottom: clamp(40px, 6vw, 88px);
}

.page-faq .faq-toc {
  min-width: 0;
  border-left: 1px solid var(--line-2);
  padding: 0 0 0 16px;
}

.page-faq .faq-toc__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

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

.page-faq .faq-toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 4px;
  color: var(--body-text);
  text-decoration: none;
  font-size: 0.94rem;
  border-bottom: 1px dashed transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-toc__n {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--orange);
  letter-spacing: 0.06em;
}

.page-faq .faq-toc__link:hover {
  color: var(--bone);
  border-bottom-color: var(--line-2);
}

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

.page-faq .faq-toc__tip {
  margin: 18px 0 0;
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 步骤 ---------- */
.page-faq .step {
  display: grid;
  gap: 14px;
  padding-top: clamp(24px, 3vw, 34px);
  margin-top: clamp(30px, 4vw, 48px);
  border-top: 1px solid var(--line);
  scroll-margin-top: 24px;
}

.page-faq .step:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-faq .step__index {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1;
  letter-spacing: -0.05em;
  color: transparent;
  -webkit-text-stroke: 1px var(--orange);
  align-self: start;
}

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

.page-faq .step__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.24rem, 2.6vw, 1.72rem);
  line-height: 1.3;
  color: var(--bone);
  margin: 0 0 12px;
}

.page-faq .step__text {
  margin: 0 0 14px;
  font-size: 0.98rem;
  line-height: 1.78;
  color: var(--body-text);
}

.page-faq .step-list {
  list-style: none;
  margin: 14px 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-faq .step-list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.95rem;
  line-height: 1.72;
}

.page-faq .step-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 1px;
  background: var(--teal);
}

.page-faq .step-list strong {
  color: var(--bone);
  font-weight: 600;
}

.page-faq .step__check {
  margin: 18px 0 0;
  padding: 13px 16px;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--bone);
  border-left: 2px solid var(--teal);
  background: rgba(25, 227, 177, 0.07);
}

.page-faq .step__check span {
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
}

/* ---------- 图片 ---------- */
.page-faq .step-figure {
  margin: 18px 0 0;
}

.page-faq .step-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--char);
  object-fit: cover;
}

.page-faq .step-figure figcaption {
  margin-top: 10px;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 检索组合示例 ---------- */
.page-faq .query-demo {
  margin: 18px 0;
  padding: 16px 18px;
  border: 1px solid var(--line-2);
  background: linear-gradient(120deg, rgba(25, 227, 177, 0.08), rgba(7, 17, 31, 0) 68%), var(--char);
}

.page-faq .query-demo__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .query-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .query-demo__hint {
  margin: 12px 0 0;
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 时间戳示意图 ---------- */
.page-faq .ts-figure {
  margin: 20px 0;
}

.page-faq .ts-svg {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(0deg, rgba(143, 163, 184, 0.07) 0 1px, transparent 1px 32px),
    var(--char);
  color: var(--mist);
}

.page-faq .ts-svg__label {
  fill: var(--mist);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.page-faq .ts-svg__score {
  fill: var(--bone);
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.page-faq .ts-svg__stamp {
  fill: var(--teal);
  font-family: var(--font-mono);
  font-size: 18px;
}

.page-faq .ts-svg__axis {
  stroke: var(--line-2);
  stroke-width: 1;
}

.page-faq .ts-svg__ticks line {
  stroke: var(--line-2);
  stroke-width: 1;
}

.page-faq .ts-svg__needle {
  stroke: var(--orange);
  stroke-width: 1;
  stroke-dasharray: 3 3;
}

.page-faq .ts-svg__dot {
  fill: var(--orange);
}

.page-faq .ts-svg__tick-labels text {
  fill: var(--mist);
  font-family: var(--font-mono);
  font-size: 11px;
  text-anchor: middle;
}

.page-faq .ts-figure figcaption {
  margin-top: 10px;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 常见问题 ---------- */
.page-faq .faq-qa {
  padding: clamp(40px, 6vw, 88px) 0;
  border-top: 1px solid var(--line-2);
  background:
    repeating-linear-gradient(135deg, rgba(143, 163, 184, 0.05) 0 2px, transparent 2px 14px),
    var(--char);
  scroll-margin-top: 24px;
}

.page-faq .faq-qa__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.2vw, 2rem);
  line-height: 1.25;
  color: var(--bone);
  margin: 0.6em 0 clamp(20px, 3vw, 32px);
}

.page-faq .qa-list {
  border-top: 1px solid var(--line-2);
}

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

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  color: var(--bone);
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.5;
}

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

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

.page-faq .qa__num {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--orange);
  flex: none;
}

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

.page-faq .qa__icon {
  position: relative;
  flex: none;
  margin-left: auto;
  width: 12px;
  height: 12px;
  align-self: center;
}

.page-faq .qa__icon::before,
.page-faq .qa__icon::after {
  content: "";
  position: absolute;
  background: var(--teal);
  transition: transform var(--dur) var(--ease);
}

.page-faq .qa__icon::before {
  left: 0;
  top: 5px;
  width: 12px;
  height: 2px;
}

.page-faq .qa__icon::after {
  left: 5px;
  top: 0;
  width: 2px;
  height: 12px;
}

.page-faq .qa[open] .qa__icon::after {
  transform: scaleY(0);
}

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

.page-faq .qa__a {
  padding: 0 0 20px 30px;
}

.page-faq .qa__a p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--body-text);
}

/* ---------- 底部引导 ---------- */
.page-faq .faq-cta-wrap {
  padding-bottom: clamp(44px, 6vw, 88px);
}

.page-faq .faq-cta {
  display: grid;
  gap: 22px;
  padding: clamp(22px, 3.4vw, 38px);
  border: 1px solid var(--line-2);
  background:
    linear-gradient(118deg, rgba(255, 90, 31, 0.14), rgba(7, 17, 31, 0) 62%),
    var(--ink-soft);
}

.page-faq .faq-cta__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.24rem, 2.6vw, 1.7rem);
  line-height: 1.3;
  color: var(--bone);
  margin: 0 0 10px;
}

.page-faq .faq-cta__desc {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--body-text);
  max-width: 40em;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-faq .step {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 26px;
  }

  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 258px;
    align-items: start;
  }

  .page-faq .faq-hero__side {
    border-top: 0;
    border-left: 1px solid var(--line-2);
    padding-top: 0;
    padding-left: 20px;
  }

  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .step__body--split {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: clamp(20px, 3vw, 34px);
    align-items: start;
  }

  .page-faq .step__body--split .step-figure {
    margin-top: 4px;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: 228px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 64px);
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 20px;
    align-self: start;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
  }

  .page-faq .step__index {
    position: sticky;
    top: 20px;
  }
}

@media (max-width: 420px) {
  .page-faq .faq-hero__actions .btn,
  .page-faq .faq-cta__actions .btn {
    width: 100%;
    justify-content: center;
  }

  .page-faq .qa__a {
    padding-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-toc__link,
  .page-faq .qa__icon::before,
  .page-faq .qa__icon::after {
    transition: none;
  }
}
<<<END>>>