.page-faq {
  --faq-side-w: 300px;
  --faq-gap: 20px;
  color: var(--text);
  padding: 20px 0 72px;
}

.page-faq a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq a:hover {
  color: var(--text);
  border-bottom-color: var(--magenta);
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.page-faq .breadcrumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-2);
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.page-faq .breadcrumbs [aria-current="page"] {
  color: var(--gold);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 26px;
  margin-bottom: 36px;
}

.page-faq .faq-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mint);
  margin: 0 0 12px;
}

.page-faq .faq-hero h1 {
  font-size: clamp(30px, 6.4vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin: 0 0 18px;
  max-width: 18ch;
}

.page-faq .faq-lede {
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-2);
  margin: 0;
  max-width: 48ch;
}

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

/* ---------- 主题跳转带 ---------- */
.page-faq .faq-jump {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
  margin-bottom: 44px;
}

.page-faq .faq-jump-track {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  scrollbar-width: thin;
}

.page-faq .faq-jump-link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  flex: 0 0 auto;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--ink-2);
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.page-faq .faq-jump-link span {
  color: var(--gold);
}

.page-faq .faq-jump-link:hover {
  background: var(--ink-3);
  color: var(--text);
  border-color: var(--magenta);
}

/* ---------- 主体栅格 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 48px;
}

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

.page-faq .faq-side {
  display: grid;
  gap: var(--faq-gap);
  align-content: start;
}

/* ---------- 问答分组 ---------- */
.page-faq .qa-group {
  margin-bottom: 56px;
  scroll-margin-top: 24px;
}

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

.page-faq .qa-group:target .qa-group-head {
  border-top-color: var(--magenta);
}

.page-faq .qa-group-head {
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
  margin-bottom: 10px;
}

.page-faq .qa-group-code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-faq .qa-group-head h2 {
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 700;
  margin: 0;
}

.page-faq .qa-group-head p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
  margin: 0;
  max-width: 46ch;
}

.page-faq .qa-item {
  border-bottom: 1px solid var(--line);
  padding-left: 14px;
  transition: box-shadow 160ms ease, background 160ms ease;
}

.page-faq .qa-item[open] {
  box-shadow: inset 2px 0 0 var(--magenta);
  background: rgba(18, 49, 42, 0.55);
}

.page-faq .qa-q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 6px 16px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa-code {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-2);
}

.page-faq .qa-item[open] .qa-code {
  color: var(--magenta);
}

.page-faq .qa-title {
  flex: 1 1 auto;
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
}

.page-faq .qa-q:hover .qa-title {
  color: var(--mint);
}

.page-faq .qa-mark {
  flex: 0 0 auto;
  width: 18px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--mint);
}

.page-faq .qa-mark::before {
  content: "＋";
}

.page-faq .qa-item[open] .qa-mark::before {
  content: "－";
  color: var(--magenta);
}

.page-faq .qa-a {
  padding: 0 6px 18px 0;
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .qa-a p {
  margin: 0 0 10px;
}

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

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

.page-faq .qa-steps {
  list-style: none;
  counter-reset: step;
  margin: 12px 0 0;
  padding: 0;
}

.page-faq .qa-steps li {
  counter-increment: step;
  position: relative;
  padding-left: 32px;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--text);
}

.page-faq .qa-steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
}

.page-faq .qa-steps li:last-child {
  margin-bottom: 0;
}

/* ---------- 章节配图 ---------- */
.page-faq .qa-figure {
  margin: 20px 0 26px;
  max-width: 300px;
}

.page-faq .qa-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-2);
}

/* ---------- 侧栏 ---------- */
.page-faq .side-card {
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--ink-2);
  padding: 20px;
}

.page-faq .side-card--pink {
  background: var(--pink);
  border-color: transparent;
  color: var(--pink-ink);
}

.page-faq .side-card--plain {
  background: transparent;
}

.page-faq .side-card-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  font-weight: 600;
  margin: 0 0 14px;
  color: var(--mint);
}

.page-faq .side-card--pink .side-card-title {
  color: var(--pink-ink);
}

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

.page-faq .side-step {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 10px;
  font-size: 14px;
  line-height: 1.65;
}

.page-faq .side-step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: #A81250;
}

.page-faq .side-contact {
  margin: 0 0 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-2);
}

.page-faq .side-contact strong {
  display: inline-block;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--gold);
  word-break: break-all;
}

.page-faq .side-contact-note {
  margin: 4px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-2);
}

.page-faq .side-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
}

.page-faq .side-links a {
  border-bottom: none;
  display: inline-block;
  padding-bottom: 2px;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq {
    --faq-gap: 24px;
    padding-top: 28px;
  }

  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: end;
    gap: 40px;
    margin-bottom: 44px;
  }

  .page-faq .qa-title {
    font-size: 17px;
  }
}

@media (min-width: 981px) {
  .page-faq {
    padding: 34px 0 96px;
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) var(--faq-side-w);
    gap: 64px;
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 24px;
  }

  .page-faq .qa-group {
    margin-bottom: 72px;
  }

  .page-faq .qa-a {
    font-size: 15px;
    max-width: 62ch;
  }

  .page-faq .qa-figure {
    margin: 24px 0 30px;
  }
}

@media (max-width: 559px) {
  .page-faq .faq-hero h1 {
    font-size: 28px;
  }

  .page-faq .qa-item {
    padding-left: 12px;
  }

  .page-faq .qa-q {
    gap: 10px;
    padding: 14px 4px 14px 0;
  }

  .page-faq .qa-title {
    font-size: 15px;
  }

  .page-faq .side-card {
    padding: 16px;
  }
}

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