.page-faq {
  --faq-hair: rgba(217, 162, 74, 0.32);
  --faq-hair-soft: rgba(217, 162, 74, 0.16);
  --faq-body-ink: #3a302a;
  --faq-rule: rgba(27, 21, 18, 0.13);
  background: var(--cream);
  color: var(--text-ink);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 顶部深墨区 ---------- */
.page-faq .faq-top {
  background:
    radial-gradient(120% 80% at 92% -10%, rgba(200, 41, 29, 0.22), transparent 62%),
    radial-gradient(90% 70% at -5% 110%, rgba(31, 74, 61, 0.38), transparent 68%),
    repeating-linear-gradient(90deg, rgba(244, 235, 220, 0.035) 0 1px, transparent 1px 64px),
    var(--ink);
  color: var(--cream);
  padding-block: clamp(18px, 3vw, 30px) clamp(34px, 6vw, 68px);
  border-bottom: 1px solid var(--faq-hair-soft);
}

.page-faq .breadcrumb {
  margin-bottom: clamp(18px, 3.4vw, 34px);
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6em;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--step-index);
  letter-spacing: 0.08em;
  color: rgba(244, 235, 220, 0.5);
}

.page-faq .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 0.6em;
  color: var(--gold);
}

.page-faq .breadcrumb__link {
  color: rgba(244, 235, 220, 0.62);
  text-decoration: none;
}

.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--gold-lite);
}

.page-faq .breadcrumb__current {
  color: var(--cream);
}

.page-faq .faq-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 46px);
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: 0.28em 0 0.42em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.15rem, 6.2vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--cream);
}

.page-faq .faq-hero__title em {
  font-style: normal;
  color: var(--gold);
}

.page-faq .faq-hero__sub {
  max-width: 48ch;
  margin: 0;
  font-size: var(--step-body);
  line-height: 1.78;
  color: rgba(244, 235, 220, 0.76);
}

.page-faq .faq-hero__jump {
  border: 1px solid var(--faq-hair);
  border-left: 3px solid var(--vermilion);
  background: rgba(36, 28, 23, 0.72);
  padding: 16px 18px 6px;
}

.page-faq .jump__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--step-index);
  letter-spacing: 0.16em;
  color: var(--gold-lite);
}

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

.page-faq .jump__item + .jump__item {
  border-top: 1px solid var(--faq-hair-soft);
}

.page-faq .jump__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 2px;
  font-size: 0.94rem;
  line-height: 1.55;
  color: rgba(244, 235, 220, 0.82);
  text-decoration: none;
  transition: color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .jump__link:hover,
.page-faq .jump__link:focus-visible {
  color: var(--gold-lite);
  transform: translateX(3px);
}

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

.page-faq .jump__code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--vermilion-hot);
}

/* ---------- 三步轨道 ---------- */
.page-faq .steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin: clamp(34px, 5.4vw, 60px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .steps__item {
  position: relative;
}

.page-faq .steps__item + .steps__item {
  border-top: 1px solid var(--faq-hair-soft);
}

.page-faq .steps__link {
  display: grid;
  gap: 8px;
  padding: 20px 4px 20px 0;
  color: inherit;
  text-decoration: none;
  transition: background 0.2s var(--ease);
}

.page-faq .steps__link:hover,
.page-faq .steps__link:focus-visible {
  background: rgba(217, 162, 74, 0.07);
}

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

.page-faq .steps__num {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4.4vw, 3rem);
  line-height: 1;
  letter-spacing: 0.05em;
  color: var(--gold);
}

.page-faq .steps__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-sub);
  color: var(--cream);
}

.page-faq .steps__desc {
  font-size: 0.93rem;
  line-height: 1.72;
  color: rgba(244, 235, 220, 0.6);
}

.page-faq .steps-figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

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

.page-faq .steps-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: var(--step-index);
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: rgba(244, 235, 220, 0.5);
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4.4vw, 54px);
  padding-block: clamp(38px, 6.5vw, 76px);
}

.page-faq .section-band {
  height: 8px;
  margin: clamp(30px, 4.6vw, 50px) 0;
  border: 0;
  background: linear-gradient(90deg, var(--gold) 0 120px, var(--faq-hair-soft) 120px 100%);
}

.page-faq .sec-head {
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-faq .sec-head__num {
  display: inline-block;
  margin: 0 0 10px;
  padding-left: 10px;
  border-left: 3px solid var(--vermilion);
  font-family: var(--font-mono);
  font-size: var(--step-index);
  letter-spacing: 0.14em;
  color: var(--vermilion);
}

.page-faq .sec-head__title {
  margin: 0 0 0.5em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-chapter);
  line-height: 1.3;
  color: var(--text-ink);
}

.page-faq .sec-head__lead {
  margin: 0;
  max-width: 56ch;
  font-size: var(--step-body);
  line-height: 1.78;
  color: var(--faq-body-ink);
}

/* ---------- 折叠条目 ---------- */
.page-faq .qa {
  position: relative;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .qa[open]::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--vermilion);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 15px 10px 15px 16px;
  list-style: none;
  cursor: pointer;
  font-size: var(--step-body);
  font-weight: 500;
  line-height: 1.62;
  color: var(--text-ink);
  transition: background 0.18s var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1.4;
  color: var(--muted);
}

.page-faq .qa[open] .qa__q {
  font-weight: 700;
  background: rgba(200, 41, 29, 0.045);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
  color: var(--vermilion);
}

.page-faq .qa__q:hover {
  background: rgba(217, 162, 74, 0.12);
}

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

.page-faq .qa__code {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding-top: 0.35em;
}

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

.page-faq .qa__a {
  padding: 0 10px 18px 16px;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--faq-body-ink);
}

.page-faq .qa__a p {
  margin: 0 0 0.7em;
  max-width: 60ch;
}

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

.page-faq .qa__hint {
  margin-top: 12px;
  padding: 10px 14px;
  background: rgba(217, 162, 74, 0.16);
  border-left: 3px solid var(--gold);
  font-size: 0.92rem;
  line-height: 1.72;
}

.page-faq .qa__hint a {
  color: var(--vermilion);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa__hint a:hover {
  color: var(--vermilion-hot);
}

.page-faq .env {
  display: inline-block;
  margin: 0 6px 4px 0;
  padding: 2px 8px;
  border: 1px solid rgba(31, 74, 61, 0.42);
  background: rgba(31, 74, 61, 0.07);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--jade);
}

/* ---------- 版本号图示 ---------- */
.page-faq .ver-figure {
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 10px;
  border: 1px solid var(--faq-rule);
  background: var(--cream-2);
}

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

.page-faq .ver-figure__cap {
  margin: 10px 2px 2px;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .ver-figure__cap .mono {
  margin-right: 0.5em;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  color: var(--vermilion);
}

/* ---------- 侧栏 ---------- */
.page-faq .faq-side {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-faq .side-card {
  padding: 20px 18px 22px;
  border: 1px solid rgba(217, 162, 74, 0.55);
  background: var(--cream-2);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-faq .side-card__mark {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: var(--step-index);
  letter-spacing: 0.16em;
  color: var(--vermilion);
}

.page-faq .side-card__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.24rem;
  line-height: 1.4;
  color: var(--text-ink);
}

.page-faq .side-card__list {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.page-faq .side-card__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  padding: 8px 0;
  border-top: 1px solid rgba(27, 21, 18, 0.12);
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--faq-body-ink);
}

.page-faq .side-card__n {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--gold);
  padding-top: 0.28em;
}

.page-faq .side-card__note {
  margin: 0 0 16px;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .side-card__btn {
  display: inline-block;
  font-size: 0.9rem;
}

.page-faq .side-links {
  padding: 16px 18px;
  border-left: 2px solid var(--faq-hair);
}

.page-faq .side-links__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--step-index);
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .side-links__item {
  display: block;
  padding: 6px 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-ink);
  text-decoration: none;
  border-bottom: 1px dotted rgba(27, 21, 18, 0.18);
}

.page-faq .side-links__item:last-child {
  border-bottom: 0;
}

.page-faq .side-links__item:hover,
.page-faq .side-links__item:focus-visible {
  color: var(--vermilion);
}

.page-faq .side-links__item:focus-visible {
  outline: 2px solid var(--vermilion);
  outline-offset: 2px;
}

/* ---------- 人工入口 ---------- */
.page-faq .faq-human {
  background:
    radial-gradient(100% 90% at 100% 0%, rgba(200, 41, 29, 0.2), transparent 62%),
    var(--ink-2);
  color: var(--cream);
  padding-block: clamp(38px, 6vw, 72px);
  border-top: 8px solid var(--gold);
}

.page-faq .human {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-faq .human__eyebrow {
  display: inline-block;
  margin: 0 0 10px;
  padding-left: 10px;
  border-left: 3px solid var(--vermilion);
  font-family: var(--font-mono);
  font-size: var(--step-index);
  letter-spacing: 0.14em;
  color: var(--gold-lite);
}

.page-faq .human__title {
  margin: 0 0 0.5em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-chapter);
  line-height: 1.28;
  color: var(--cream);
}

.page-faq .human__text {
  max-width: 48ch;
  margin: 0 0 20px;
  font-size: var(--step-body);
  line-height: 1.78;
  color: rgba(244, 235, 220, 0.74);
}

.page-faq .human__list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .human__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--faq-hair-soft);
}

.page-faq .human__row dt {
  font-family: var(--font-mono);
  font-size: var(--step-index);
  letter-spacing: 0.12em;
  color: rgba(244, 235, 220, 0.5);
}

.page-faq .human__row dd {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--cream);
  word-break: break-word;
}

.page-faq .human__row dd.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .human__row {
    grid-template-columns: 108px minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .steps__item + .steps__item {
    border-top: 0;
    border-left: 1px solid var(--faq-hair-soft);
  }

  .page-faq .steps__link {
    padding: 22px clamp(14px, 2.2vw, 26px);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  }

  .page-faq .human {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 304px;
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 96px;
  }
}

@media (max-width: 979px) {
  .page-faq .faq-side {
    max-width: 560px;
  }
}

@media (max-width: 480px) {
  .page-faq .qa__a {
    padding-left: 16px;
  }

  .page-faq .qa__q {
    gap: 8px;
    padding-left: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .jump__link,
  .page-faq .steps__link,
  .page-faq .qa__q {
    transition: none;
  }

  .page-faq .jump__link:hover {
    transform: none;
  }
}