.page-faq {
  --qa-bar: var(--cinnabar);
  --faq-rule: var(--line-gold-soft);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(16px, 4vw, 34px) 0 clamp(30px, 6vw, 62px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 86% -12%, rgba(179, 38, 30, .30), transparent 62%),
    radial-gradient(92% 80% at -8% 34%, rgba(44, 110, 143, .22), transparent 66%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(214, 169, 76, .10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(214, 169, 76, .10) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .75), transparent 80%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .75), transparent 80%);
  pointer-events: none;
}

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

.page-faq .breadcrumb {
  margin-bottom: clamp(20px, 4vw, 34px);
}

.page-faq .hero-grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 8.4vw, 4.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--wool);
  background: linear-gradient(105deg, var(--wool) 6%, var(--gold) 56%, var(--gold-bright) 96%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-faq .hero-lede {
  margin: 20px 0 0;
  max-width: 58ch;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-dim);
}

.page-faq .hero-meta {
  margin: 22px 0 0;
  font-size: .84rem;
  letter-spacing: .04em;
  color: var(--text-dim-2);
}

.page-faq .hero-meta .num {
  font-family: var(--font-mono);
  color: var(--gold);
}

.page-faq .hero-jump {
  position: relative;
  border: 3px solid var(--line-gold);
  background: linear-gradient(165deg, var(--indigo-2), var(--indigo));
  box-shadow: var(--shadow-hard-sm);
  padding: 20px 18px 12px;
}

.page-faq .hero-jump::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--cinnabar), var(--gold), var(--blue), var(--green));
}

.page-faq .jump-title {
  margin: 0 0 14px;
  font-size: .76rem;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-faq .jump-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .jump-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 2px;
  border-bottom: 1px solid var(--faq-rule);
  color: var(--wool);
  text-decoration: none;
  font-size: .9rem;
  line-height: 1.55;
  transition: color .18s var(--ease), padding-left .18s var(--ease);
}

.page-faq .jump-list li:last-child a {
  border-bottom: 0;
}

.page-faq .jump-list a:hover {
  color: var(--gold-bright);
  padding-left: 8px;
}

.page-faq .jump-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--gold);
}

/* ---------- 三步上手 ---------- */
.page-faq .faq-steps {
  padding: clamp(28px, 5vw, 52px) 0 clamp(34px, 6vw, 66px);
  border-top: 1px solid var(--faq-rule);
}

.page-faq .steps-head {
  max-width: 62ch;
}

.page-faq .steps-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 3.6vw, 2.1rem);
  line-height: 1.25;
  color: var(--wool);
}

.page-faq .steps-lede {
  margin: 12px 0 0;
  font-size: .94rem;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-faq .step-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .step-card {
  position: relative;
  border: 3px solid var(--line-gold);
  background: linear-gradient(160deg, var(--indigo-2), rgba(27, 36, 80, .55));
  box-shadow: var(--shadow-hard-sm);
  padding: 18px 18px 22px;
}

.page-faq .step-card:nth-child(2) {
  background: linear-gradient(160deg, var(--indigo-3), rgba(27, 36, 80, .5));
}

.page-faq .step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--gold);
}

.page-faq .step-icon {
  display: block;
  width: 40px;
  height: 40px;
  margin: 14px 0 4px;
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: .9;
}

.page-faq .step-name {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.12rem;
  color: var(--wool);
}

.page-faq .step-text {
  margin: 0;
  font-size: .89rem;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-figure {
  margin: 26px 0 0;
  border: 3px solid var(--line-gold);
  background: var(--indigo-2);
  box-shadow: var(--shadow-hard-sm);
}

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

.page-faq .faq-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--faq-rule);
  font-size: .8rem;
  line-height: 1.7;
  color: var(--text-dim-2);
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body-section {
  padding: clamp(20px, 4vw, 34px) 0 clamp(42px, 8vw, 82px);
}

.page-faq .faq-body {
  display: grid;
  gap: 26px;
}

.page-faq .faq-index {
  border-left: 3px solid var(--gold);
  padding: 2px 0 2px 16px;
}

.page-faq .index-head {
  margin: 0 0 12px;
  font-size: .76rem;
  letter-spacing: .18em;
  color: var(--gold);
}

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

.page-faq .faq-index-list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 0;
  border-bottom: 1px solid var(--faq-rule);
  color: var(--wool);
  text-decoration: none;
  font-size: .91rem;
  transition: color .18s var(--ease);
}

.page-faq .faq-index-list a:hover {
  color: var(--gold-bright);
}

.page-faq .idx-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: .74rem;
  color: var(--gold);
}

.page-faq .idx-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .74rem;
  color: var(--text-dim-2);
}

.page-faq .index-note {
  margin: 14px 0 0;
  font-size: .78rem;
  line-height: 1.7;
  color: var(--text-dim-2);
}

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-filter .filter-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .76rem;
  color: var(--text-dim-2);
}

.page-faq .faq-group {
  margin-bottom: 32px;
  scroll-margin-top: 92px;
}

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

.page-faq .faq-group--install { --qa-bar: var(--cinnabar); }
.page-faq .faq-group--download { --qa-bar: var(--gold); }
.page-faq .faq-group--record { --qa-bar: var(--blue); }
.page-faq .faq-group--account { --qa-bar: var(--green); }

.page-faq .qa-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--line-gold);
}

.page-faq .qa-group-num {
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-faq .qa-group-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.12rem, 2.8vw, 1.45rem);
  line-height: 1.35;
  color: var(--wool);
}

.page-faq .qa-group-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .74rem;
  color: var(--text-dim-2);
}

.page-faq .qa-item {
  position: relative;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .qa-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  background: var(--qa-bar);
  opacity: .5;
  transition: opacity .18s var(--ease);
}

.page-faq .qa-item[open]::before {
  opacity: 1;
}

.page-faq .qa-q {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 34px 15px 16px;
  list-style: none;
  cursor: pointer;
  font-size: .97rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--wool);
  transition: color .18s var(--ease);
}

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

.page-faq .qa-q:hover {
  color: var(--gold-bright);
}

.page-faq .qa-q:focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: 2px;
}

.page-faq .qa-q::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--gold);
}

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

.page-faq .qa-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-faq .qa-a {
  padding: 0 16px 20px 42px;
  max-width: 62ch;
  font-size: .91rem;
  line-height: 1.9;
  color: var(--text-dim);
}

.page-faq .qa-a p {
  margin: 0;
}

/* ---------- 术语小词典 ---------- */
.page-faq .faq-glossary {
  padding: clamp(32px, 6vw, 64px) 0;
  border-top: 1px solid var(--faq-rule);
  background: linear-gradient(180deg, rgba(36, 48, 99, .55), rgba(16, 23, 51, 0) 68%);
}

.page-faq .glossary-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 3.6vw, 2.05rem);
  line-height: 1.3;
  color: var(--gold);
}

.page-faq .glossary-lede {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: .94rem;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-faq .glossary-figure {
  margin: 26px auto 0;
  max-width: 440px;
  border: 3px solid var(--line-gold);
  box-shadow: var(--shadow-hard-sm);
}

.page-faq .glossary-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .glossary-grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-faq .term-card {
  position: relative;
  overflow: hidden;
  border: 3px solid var(--line-gold);
  background: var(--indigo-2);
  box-shadow: var(--shadow-hard-sm);
  padding: 20px 20px 22px;
}

.page-faq .term-card::after {
  content: "";
  position: absolute;
  right: -20px;
  bottom: -20px;
  width: 88px;
  height: 88px;
  background-image:
    linear-gradient(90deg, var(--gold) 2px, transparent 2px),
    linear-gradient(0deg, var(--gold) 2px, transparent 2px);
  background-size: 13px 13px;
  opacity: .18;
  transform: rotate(-8deg);
  pointer-events: none;
}

.page-faq .term-name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--gold-bright);
}

.page-faq .term-text {
  position: relative;
  margin: 0;
  max-width: 42ch;
  font-size: .89rem;
  line-height: 1.85;
  color: var(--text-dim);
}

/* ---------- 求助出口 ---------- */
.page-faq .faq-help {
  padding: 0 0 clamp(48px, 8vw, 92px);
}

.page-faq .help-panel {
  position: relative;
  display: grid;
  gap: 26px;
  padding: clamp(22px, 4vw, 40px);
  border: 3px solid var(--line-gold);
  background: linear-gradient(150deg, rgba(179, 38, 30, .20), rgba(27, 36, 80, .92) 42%, var(--indigo));
  box-shadow: var(--shadow-hard-sm);
}

.page-faq .help-panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background: var(--cinnabar);
}

.page-faq .help-title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.45rem, 4vw, 2.15rem);
  line-height: 1.2;
  color: var(--wool);
}

.page-faq .help-text {
  margin: 12px 0 0;
  max-width: 52ch;
  font-size: .94rem;
  line-height: 1.9;
  color: var(--text-dim);
}

.page-faq .help-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 22px 0 0;
  font-size: .87rem;
}

.page-faq .help-links a {
  color: var(--gold-bright);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-gold);
  transition: color .18s var(--ease);
}

.page-faq .help-links a:hover {
  color: var(--wool);
}

.page-faq .help-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .help-list .contact-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .help-list .contact-label {
  flex: none;
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-faq .help-list .contact-value {
  font-family: var(--font-mono);
  font-size: .9rem;
  line-height: 1.6;
  color: var(--wool);
  word-break: break-word;
}

.page-faq .help-list .copy-btn {
  margin-left: auto;
  flex: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .glossary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .glossary-figure {
    margin-left: 0;
    margin-right: 0;
  }
}

@media (min-width: 780px) {
  .page-faq .step-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-faq .hero-grid {
    grid-template-columns: minmax(0, 1.62fr) minmax(0, .9fr);
    gap: 48px;
    align-items: end;
  }

  .page-faq .qa-a {
    padding-left: 46px;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-body {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 88px;
  }
}

@media (min-width: 960px) {
  .page-faq .help-panel {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-figure,
  .page-faq .glossary-figure {
    box-shadow: var(--shadow-hard);
  }
}
<<<END>>>