.page-faq {
  --faq-shadow: 6px 6px 0 rgba(0, 0, 0, .55);
  --faq-pad: clamp(1.05rem, 2.4vw, 1.65rem);
  padding-block: clamp(1rem, 2.5vw, 2rem) clamp(3rem, 7vw, 5.5rem);
  background:
    radial-gradient(circle at 90% 2%, rgba(200, 255, 61, .09), transparent 46%),
    linear-gradient(180deg, rgba(14, 59, 46, .5) 0%, transparent 30%),
    var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-faq .breadcrumb {
  margin: 0 0 clamp(1rem, 2vw, 1.5rem);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: center;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 6.4vw, 4rem);
  line-height: 1.04;
  letter-spacing: -.012em;
  margin: .3em 0 .55em;
  text-wrap: balance;
}

.page-faq .faq-hero .lede {
  max-width: 46ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--paper);
  opacity: .88;
}

.page-faq .faq-quick {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hero-figure {
  margin: 0;
  border: var(--line);
  background: var(--board);
  box-shadow: var(--faq-shadow);
  position: relative;
}

.page-faq .faq-hero-figure::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 46%;
  height: 34%;
  background: linear-gradient(135deg, rgba(200, 255, 61, .16), transparent 72%);
  border-top: 2px solid var(--edge);
  pointer-events: none;
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 目录条 ---------- */
.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: clamp(1.75rem, 4vw, 3rem);
  padding-top: .85rem;
  border-top: var(--line);
}

.page-faq .faq-jump a {
  font-family: var(--font-data);
  font-size: .76rem;
  letter-spacing: .07em;
  color: var(--paper);
  text-decoration: none;
  border: 1px solid var(--edge);
  background: var(--board);
  padding: .45rem .8rem;
  transition: background .16s var(--ease), color .16s var(--ease), border-color .16s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

.page-faq .faq-jump a:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

/* ---------- 区块骨架 ---------- */
.page-faq .faq-block {
  margin-top: clamp(2.4rem, 6vw, 4.2rem);
  padding-top: clamp(1.4rem, 3vw, 2.1rem);
  border-top: var(--line);
}

.page-faq .faq-block .lede {
  max-width: 62ch;
  color: var(--muted);
  line-height: 1.8;
}

.page-faq .faq-band {
  background:
    linear-gradient(140deg, rgba(14, 59, 46, .92) 0%, rgba(14, 59, 46, .55) 58%, transparent 100%);
  border-top: 3px solid var(--lime);
  padding-inline: clamp(1rem, 2.6vw, 1.9rem);
  padding-bottom: clamp(1.4rem, 3vw, 2rem);
}

/* ---------- 三步路径 ---------- */
.page-faq .step-list {
  list-style: none;
  display: grid;
  gap: 1rem;
  margin: clamp(1.25rem, 3vw, 2rem) 0 0;
  padding: 0;
}

.page-faq .step {
  position: relative;
  background: var(--board);
  border: var(--line);
  box-shadow: var(--faq-shadow);
  padding: var(--faq-pad);
  overflow: hidden;
}

.page-faq .step::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 40px;
  height: 40px;
  border-left: var(--line);
  border-bottom: var(--line);
  background: linear-gradient(135deg, transparent 46%, var(--edge) 47%);
  pointer-events: none;
}

.page-faq .step-num {
  display: block;
  font-family: var(--font-data);
  font-weight: 600;
  font-size: 2rem;
  line-height: 1;
  color: var(--lime);
  margin-bottom: .7rem;
}

.page-faq .step-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.32rem;
  line-height: 1.2;
  margin: 0 0 .5rem;
  color: var(--paper);
}

.page-faq .step p {
  margin: 0 0 1rem;
  font-size: .94rem;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 浏览器查看 ---------- */
.page-faq .browser-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .browser-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .55rem;
}

.page-faq .browser-steps li {
  display: grid;
  grid-template-columns: 1fr;
  gap: .3rem;
  padding: .85rem 1rem;
  background: rgba(10, 15, 13, .6);
  border-left: 3px solid var(--mint);
}

.page-faq .b-tag {
  font-family: var(--font-data);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--lime);
}

.page-faq .browser-steps p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--paper);
  opacity: .85;
}

.page-faq .browser-steps a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .browser-figure {
  margin: 0;
  border: var(--line);
  background: var(--ink);
}

.page-faq .browser-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .browser-figure .media-caption {
  display: block;
  padding: .7rem 1rem;
  font-size: .8rem;
  line-height: 1.6;
  color: var(--muted);
  border-top: 1px solid var(--edge);
}

/* ---------- 收藏与更新 ---------- */
.page-faq .saved-grid {
  display: grid;
  gap: 1rem;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .saved-main {
  grid-area: main;
}

.page-faq .saved-stat {
  grid-area: stat;
}

.page-faq .saved-facts {
  grid-area: facts;
}

.page-faq .panel h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  line-height: 1.25;
  margin: 0 0 .6rem;
  color: var(--paper);
}

.page-faq .saved-main p {
  margin: 0 0 .9rem;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .saved-main .btn {
  margin-top: .3rem;
}

.page-faq .saved-stat .data-figure {
  display: block;
  font-family: var(--font-data);
  font-weight: 600;
  font-size: clamp(3rem, 9vw, 4.6rem);
  line-height: 1;
  color: var(--lime);
}

.page-faq .saved-stat .stat-label {
  margin: .6rem 0 0;
  font-size: .84rem;
  line-height: 1.65;
  color: var(--paper);
  opacity: .85;
}

.page-faq .saved-facts ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .55rem;
}

.page-faq .saved-facts li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .saved-facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: .5rem;
  height: .5rem;
  background: var(--steel);
}

/* ---------- 问答折叠 ---------- */
.page-faq .qa-group {
  margin-top: 1.5rem;
}

.page-faq .qa-group-title {
  font-family: var(--font-data);
  font-weight: 600;
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--steel);
  margin: 0 0 .65rem;
  padding-bottom: .45rem;
  border-bottom: 1px solid var(--edge);
}

.page-faq .qa {
  background: var(--board);
  border: var(--line);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, .45);
  margin-bottom: .55rem;
}

.page-faq .qa summary {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  padding: .9rem 1rem;
  cursor: pointer;
  list-style: none;
  font-size: .95rem;
  font-weight: 500;
  color: var(--paper);
  transition: background .16s var(--ease);
}

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

.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-data);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--lime);
}

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

.page-faq .qa[open] summary {
  background: rgba(200, 255, 61, .08);
}

.page-faq .qa summary:hover {
  background: rgba(79, 227, 193, .07);
}

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -3px;
}

.page-faq .qa-index {
  flex: none;
  font-family: var(--font-data);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--amber);
}

.page-faq .qa-q {
  flex: 1 1 auto;
  line-height: 1.5;
}

.page-faq .qa-a {
  padding: .1rem 1rem 1rem;
  border-top: 1px solid var(--edge);
}

.page-faq .qa-a p {
  margin: .7rem 0 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .qa-a a {
  color: var(--mint);
}

/* ---------- 人工协助 ---------- */
.page-faq .support-grid {
  display: grid;
  gap: 1rem;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .support-list {
  margin: 0;
  display: grid;
  gap: .6rem;
}

.page-faq .support-list > div {
  display: grid;
  grid-template-columns: 1fr;
  gap: .15rem;
  padding-bottom: .55rem;
  border-bottom: 1px solid rgba(46, 91, 73, .55);
}

.page-faq .support-list dt {
  font-family: var(--font-data);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--steel);
}

.page-faq .support-list dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: .95rem;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .support-note {
  margin: 1rem 0 0;
  font-size: .88rem;
  line-height: 1.8;
  color: var(--muted);
  border-left: 3px solid var(--amber);
  padding-left: .85rem;
}

.page-faq .support-links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .7rem;
}

.page-faq .support-links li {
  font-size: .9rem;
  line-height: 1.75;
  color: var(--paper);
  opacity: .88;
}

.page-faq .support-links a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 480px) {
  .page-faq .browser-steps li {
    grid-template-columns: 4.5rem 1fr;
    gap: .85rem;
    align-items: start;
  }

  .page-faq .b-tag {
    padding-top: .15rem;
  }

  .page-faq .support-list > div {
    grid-template-columns: 5.5rem 1fr;
    gap: .6rem;
    align-items: baseline;
  }

  .page-faq .support-list dt {
    padding-top: .12rem;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-hero {
    grid-template-columns: 1.08fr .92fr;
  }

  .page-faq .step-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.1rem;
  }

  .page-faq .step:nth-child(2) {
    margin-top: 1.3rem;
  }

  .page-faq .step:nth-child(3) {
    margin-top: .55rem;
  }

  .page-faq .saved-grid {
    grid-template-columns: 1.4fr 1fr;
    grid-template-areas:
      "main stat"
      "main facts";
    align-items: start;
  }

  .page-faq .support-grid {
    grid-template-columns: 1.2fr .8fr;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .browser-grid {
    grid-template-columns: 1fr .82fr;
    align-items: start;
    gap: 1.5rem;
  }

  .page-faq .qa summary {
    padding: 1rem 1.15rem;
  }

  .page-faq .qa-a {
    padding: .1rem 1.15rem 1.1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump a,
  .page-faq .qa summary {
    transition: none;
  }
}
<<<END>>>