.page-faq {
  --faq-pad: clamp(18px, 2.6vw, 28px);
  --faq-line: rgba(46, 90, 122, .16);
  --faq-body: #38495a;
  display: block;
  background: var(--ly-fog);
  color: var(--ly-ink);
  font-family: var(--ly-font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

.page-faq [id] {
  scroll-margin-top: calc(var(--ly-header-h) + 16px);
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 40px) 0 0;
  background:
    radial-gradient(120% 100% at 86% -12%, rgba(20, 200, 184, .22), transparent 58%),
    linear-gradient(158deg, var(--ly-deep) 6%, var(--ly-steel) 96%);
  color: var(--ly-white);
}

.page-faq .faq-hero__slash {
  position: absolute;
  top: -28%;
  right: -18%;
  width: 54%;
  height: 172%;
  background: linear-gradient(180deg, var(--ly-orange), rgba(255, 107, 26, 0));
  opacity: .12;
  transform: rotate(-16deg);
  pointer-events: none;
}

.page-faq .faq-hero .ly-breadcrumb,
.page-faq .faq-hero .ly-breadcrumb a,
.page-faq .faq-hero .ly-breadcrumb li {
  color: rgba(255, 255, 255, .7);
}

.page-faq .faq-hero .ly-breadcrumb a:hover {
  color: var(--ly-yellow);
}

.page-faq .faq-hero__copy {
  position: relative;
  z-index: 1;
  max-width: 760px;
  padding: clamp(16px, 3vw, 30px) 0 clamp(24px, 4vw, 40px);
}

.page-faq .faq-hero .ly-eyebrow {
  color: var(--ly-yellow);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 18px;
  font-family: var(--ly-font-display);
  font-size: clamp(31px, 5.6vw, 62px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--ly-white);
}

.page-faq .faq-hero__lede {
  max-width: 630px;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: rgba(255, 255, 255, .82);
}

.page-faq .faq-hero__path {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 26px;
}

.page-faq .faq-hero__chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .24);
  background: rgba(255, 255, 255, .06);
  font-size: 13px;
  letter-spacing: .05em;
}

.page-faq .faq-hero__chip b {
  font-size: 12px;
  color: var(--ly-mint);
}

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

.page-faq .faq-hero__actions .ly-btn--ghost {
  color: var(--ly-white);
  border-color: rgba(255, 255, 255, .42);
  background: transparent;
}

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

.page-faq .faq-hero__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--ly-radius) var(--ly-radius) 0 0;
  border: 1px solid rgba(255, 255, 255, .14);
  border-bottom: 0;
}

/* ---------- 通用区块 ---------- */

.page-faq .faq-block {
  padding: clamp(44px, 6.4vw, 84px) 0;
}

.page-faq .faq-block--paper {
  background: var(--ly-white);
}

.page-faq .faq-block--big {
  background:
    radial-gradient(90% 80% at 92% 0%, rgba(122, 92, 255, .2), transparent 60%),
    linear-gradient(170deg, var(--ly-steel), var(--ly-deep));
  color: var(--ly-white);
}

.page-faq .faq-block__head {
  max-width: 730px;
  margin-bottom: clamp(22px, 3.4vw, 38px);
}

.page-faq .faq-block__head h2 {
  margin: 10px 0 14px;
  font-family: var(--ly-font-display);
  font-size: clamp(25px, 3.4vw, 38px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--ly-deep);
}

.page-faq .faq-block__head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--faq-body);
}

.page-faq .faq-block--big .faq-block__head h2 {
  color: var(--ly-white);
}

.page-faq .faq-block--big .faq-block__head p {
  color: rgba(255, 255, 255, .74);
}

.page-faq .faq-block--big .ly-eyebrow {
  color: var(--ly-yellow);
}

/* ---------- 三步自查 ---------- */

.page-faq .faq-steps__grid {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-faq .faq-step {
  position: relative;
  padding: var(--faq-pad);
  background: var(--ly-white);
  border: 1px solid var(--faq-line);
  border-radius: var(--ly-radius);
  transition: transform var(--ly-fast) var(--ly-ease), box-shadow var(--ly-fast) var(--ly-ease);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  border-radius: var(--ly-radius) var(--ly-radius) 0 0;
  background: var(--ly-orange);
}

.page-faq .faq-step--net::before {
  background: var(--ly-mint);
}

.page-faq .faq-step--entry::before {
  background: var(--ly-violet);
}

.page-faq .faq-step:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 40px -32px rgba(7, 26, 47, .7);
}

.page-faq .faq-step__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.page-faq .faq-step__num {
  font-size: 30px;
  font-weight: 600;
  line-height: 1;
  color: var(--ly-orange);
}

.page-faq .faq-step--net .faq-step__num {
  color: var(--ly-mint);
}

.page-faq .faq-step--entry .faq-step__num {
  color: var(--ly-violet);
}

.page-faq .faq-step__title {
  margin: 0 0 8px;
  font-family: var(--ly-font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--ly-deep);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-body);
}

.page-faq .faq-step__toggle {
  margin-top: 14px;
  padding: 0 0 2px;
  border: 0;
  border-bottom: 1px solid var(--ly-orange);
  background: none;
  color: var(--ly-orange);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  cursor: pointer;
}

.page-faq .faq-step__panel {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--faq-line);
}

.page-faq .faq-step__panel ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-faq .faq-step__panel li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--faq-body);
}

.page-faq .faq-step__panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ly-yellow);
}

/* ---------- 分步排查 ---------- */

.page-faq .faq-trouble {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-faq .faq-toc__label {
  margin: 0 0 10px;
  font-family: var(--ly-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ly-line);
}

.page-faq .faq-toc__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 4px;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-left: 3px solid transparent;
  border-radius: 0 var(--ly-radius-sm) var(--ly-radius-sm) 0;
  font-size: 14px;
  color: var(--ly-ink);
  text-decoration: none;
  transition: background var(--ly-fast) var(--ly-ease), border-color var(--ly-fast) var(--ly-ease);
}

.page-faq .faq-toc__link .ly-mono {
  font-size: 12px;
  color: var(--ly-line);
}

.page-faq .faq-toc__link:hover {
  background: var(--ly-mint-soft);
}

.page-faq .faq-toc__link.is-active {
  background: var(--ly-orange-soft);
  border-left-color: var(--ly-orange);
}

.page-faq .faq-toc__link.is-active .ly-mono {
  color: var(--ly-orange);
}

.page-faq .faq-trouble__figure {
  margin: 22px 0 0;
}

.page-faq .faq-trouble__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--ly-radius);
  object-fit: cover;
}

.page-faq .faq-symptom {
  padding: var(--faq-pad);
  margin-bottom: 14px;
  background: var(--ly-fog);
  border-radius: var(--ly-radius);
  border-left: 4px solid var(--ly-orange);
}

.page-faq .faq-symptom--a2 {
  border-left-color: var(--ly-mint);
}

.page-faq .faq-symptom--a3 {
  border-left-color: var(--ly-violet);
}

.page-faq .faq-symptom--a4 {
  border-left-color: var(--ly-line);
}

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

.page-faq .faq-symptom__code {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ly-line);
}

.page-faq .faq-symptom__title {
  margin: 0;
  font-family: var(--ly-font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--ly-deep);
}

.page-faq .faq-symptom__steps {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-symptom__steps li {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 10px;
  font-size: 15px;
  line-height: 1.7;
  color: #24333f;
}

.page-faq .faq-symptom__idx {
  font-size: 12px;
  line-height: 1.9;
  color: var(--ly-orange);
}

.page-faq .faq-symptom__verdict {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-radius: var(--ly-radius-sm);
  background: var(--ly-mint-soft);
  font-size: 14px;
  line-height: 1.68;
  color: #16413c;
}

.page-faq .faq-symptom__verdict strong {
  color: #0c302c;
}

/* ---------- 大屏速查 ---------- */

.page-faq .faq-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-faq .faq-filter {
  font-family: inherit;
  font-size: 13px;
  letter-spacing: .03em;
  cursor: pointer;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .28);
  background: transparent;
  color: rgba(255, 255, 255, .8);
  transition: background var(--ly-fast) var(--ly-ease), color var(--ly-fast) var(--ly-ease), border-color var(--ly-fast) var(--ly-ease);
}

.page-faq .faq-filter:hover {
  border-color: var(--ly-yellow);
  color: var(--ly-yellow);
}

.page-faq .faq-filter[aria-pressed="true"],
.page-faq .faq-filter.is-active {
  background: var(--ly-orange);
  border-color: var(--ly-orange);
  color: var(--ly-deep);
  font-weight: 600;
}

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

.page-faq .faq-sig {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 12px;
  padding: 14px 16px;
  border-radius: var(--ly-radius-sm);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .12);
  transition: background var(--ly-fast) var(--ly-ease), transform var(--ly-fast) var(--ly-ease);
}

.page-faq .faq-sig:hover {
  background: rgba(255, 255, 255, .1);
  transform: translateY(-2px);
}

.page-faq .faq-sig[hidden] {
  display: none;
}

.page-faq .faq-sig__code {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ly-yellow);
  padding-top: 3px;
}

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

.page-faq .faq-sig__title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ly-white);
}

.page-faq .faq-sig__fix {
  margin: 4px 0 0;
  font-size: 13.5px;
  line-height: 1.62;
  color: rgba(255, 255, 255, .72);
}

.page-faq .faq-sig__more {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, .7);
}

.page-faq .faq-sig__link {
  color: var(--ly-mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(20, 200, 184, .5);
}

.page-faq .faq-sig__link:hover {
  color: var(--ly-yellow);
  border-bottom-color: var(--ly-yellow);
}

/* ---------- 入口与浏览器 ---------- */

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

.page-faq .faq-entry {
  padding: 18px;
  background: var(--ly-white);
  border: 1px solid var(--faq-line);
  border-radius: var(--ly-radius-sm);
}

.page-faq .faq-entry__num {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--ly-orange);
}

.page-faq .faq-entry h3 {
  margin: 6px 0 6px;
  font-family: var(--ly-font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--ly-deep);
}

.page-faq .faq-entry p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--faq-body);
}

.page-faq .faq-browser {
  margin-top: 26px;
  padding: clamp(20px, 2.8vw, 30px);
  border-radius: var(--ly-radius);
  background: linear-gradient(150deg, var(--ly-deep), var(--ly-steel));
  color: rgba(255, 255, 255, .82);
}

.page-faq .faq-browser__title {
  margin: 0 0 14px;
  font-family: var(--ly-font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--ly-white);
}

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

.page-faq .faq-browser__list li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.7;
}

.page-faq .faq-browser__list .ly-mono {
  font-size: 12px;
  line-height: 1.95;
  color: var(--ly-mint);
}

/* ---------- 反馈 ---------- */

.page-faq .faq-block--feedback {
  background: var(--ly-fog);
}

.page-faq .faq-feedback__grid {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-faq .faq-feedback__copy h2 {
  margin: 10px 0 14px;
  font-family: var(--ly-font-display);
  font-size: clamp(25px, 3.4vw, 38px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--ly-deep);
}

.page-faq .faq-feedback__copy > p {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--faq-body);
}

.page-faq .faq-feedback__list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-faq .faq-feedback__list li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--faq-line);
  font-size: 15px;
  color: #24333f;
}

.page-faq .faq-feedback__list .ly-mono {
  font-size: 12px;
  line-height: 1.9;
  color: var(--ly-orange);
}

.page-faq .faq-feedback__aside {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: #4a5a68;
}

.page-faq .faq-feedback__link {
  color: var(--ly-steel);
  text-decoration: none;
  border-bottom: 1px solid var(--ly-orange);
}

.page-faq .faq-feedback__link:hover {
  color: var(--ly-orange);
}

.page-faq .faq-feedback__card {
  padding: clamp(20px, 2.8vw, 30px);
  background: var(--ly-white);
  border: 1px solid var(--faq-line);
  border-radius: var(--ly-radius);
  box-shadow: 0 24px 48px -38px rgba(7, 26, 47, .8);
}

.page-faq .faq-feedback__label {
  margin: 0;
  font-family: var(--ly-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ly-line);
}

.page-faq .faq-feedback__mail {
  margin: 8px 0 10px;
  font-size: clamp(14px, 1.7vw, 18px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--ly-deep);
  word-break: break-all;
}

.page-faq .faq-feedback__note {
  margin: 0 0 18px;
  padding: 10px 12px;
  border-radius: var(--ly-radius-sm);
  background: var(--ly-orange-soft);
  font-size: 13.5px;
  line-height: 1.65;
  color: #6b2a08;
}

.page-faq .faq-feedback__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-feedback__actions .ly-btn--ghost {
  color: var(--ly-deep);
  border-color: rgba(7, 26, 47, .28);
}

/* ---------- 响应式 ---------- */

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

@media (min-width: 860px) {
  .page-faq .faq-steps__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 980px) {
  .page-faq .faq-trouble {
    grid-template-columns: 250px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--ly-header-h) + 20px);
  }

  .page-faq .faq-feedback__grid {
    grid-template-columns: 1.15fr .85fr;
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-entry__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

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

  .page-faq .faq-step:hover,
  .page-faq .faq-sig:hover {
    transform: none;
  }
}
<<<END>>>