.page-faq {
  --faq-pad: clamp(1.15rem, 4vw, 3.25rem);
  --faq-gap: clamp(1.5rem, 4vw, 3rem);
  background: var(--ice);
  color: var(--ink);
}

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

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.25rem, 3.5vw, 2.25rem) var(--faq-pad) clamp(2.5rem, 6vw, 4.5rem);
  background:
    radial-gradient(115% 90% at 92% -15%, rgba(46, 111, 158, 0.55), transparent 62%),
    linear-gradient(158deg, var(--deep), var(--night) 78%);
  color: var(--ice);
}

.page-faq .faq-hero .breadcrumb {
  max-width: var(--shell);
  margin-inline: auto;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: rgba(246, 248, 251, 0.6);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.35rem;
  color: rgba(216, 169, 78, 0.7);
}

.page-faq .breadcrumb a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  max-width: var(--shell);
  margin-inline: auto;
  margin-top: clamp(1.5rem, 4vw, 2.75rem);
}

.page-faq .faq-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--gold-soft);
}

.page-faq .faq-hero__kicker::before {
  content: "";
  width: 2.25rem;
  height: 1px;
  background: var(--gold);
}

.page-faq .faq-hero__title {
  margin: 0.65rem 0 0;
  font-size: clamp(2.05rem, 6.4vw, 4.4rem);
  font-weight: 400;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--ice);
}

.page-faq .faq-hero__lede {
  max-width: 33rem;
  margin: 1.25rem 0 0;
  font-size: clamp(0.95rem, 1.6vw, 1.05rem);
  line-height: 1.85;
  color: rgba(246, 248, 251, 0.82);
}

.page-faq .faq-hero__meta {
  margin: 0.9rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--gold-soft);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.page-faq .faq-hero .btn--ghost {
  border-color: rgba(242, 210, 138, 0.45);
  color: var(--gold-soft);
}

.page-faq .faq-hero .btn--ghost:hover,
.page-faq .faq-hero .btn--ghost:focus-visible {
  border-color: var(--gold);
  color: var(--ice);
}

.page-faq .faq-hero__figure {
  margin: 0;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(216, 169, 78, 0.28);
  border-radius: 4px 4px 2px 2px;
}

.page-faq .faq-hero__figure figcaption {
  margin-top: 0.6rem;
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: rgba(246, 248, 251, 0.6);
}

/* ---------- Shell 与左侧索引 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: var(--faq-gap);
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(2rem, 5vw, 3.5rem) var(--faq-pad) clamp(2.5rem, 6vw, 4rem);
}

.page-faq .faq-index {
  min-width: 0;
  font-size: 0.84rem;
}

.page-faq .faq-index__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-faq .faq-index ol {
  display: flex;
  gap: 0.25rem;
  margin: 0.55rem 0 0;
  padding: 0.45rem 0 0;
  list-style: none;
  overflow-x: auto;
  border-top: 1px solid rgba(42, 74, 107, 0.35);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index a {
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
  padding: 0.45rem 0.7rem;
  white-space: nowrap;
  color: rgba(20, 36, 59, 0.78);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  color: var(--deep);
  border-bottom-color: var(--gold);
  outline: none;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
}

.page-faq .faq-index__links {
  margin-top: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(42, 74, 107, 0.35);
}

.page-faq .faq-index__links a {
  display: inline-block;
  padding: 0.25rem 0;
  font-size: 0.78rem;
  color: var(--ember);
  text-decoration: none;
  border-bottom: 1px solid rgba(228, 87, 46, 0.4);
}

.page-faq .faq-index__links a:hover,
.page-faq .faq-index__links a:focus-visible {
  color: var(--deep);
  border-bottom-color: var(--deep);
}

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

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  padding-block: clamp(1.75rem, 4.5vw, 3rem);
  border-top: 1px solid rgba(42, 74, 107, 0.26);
  scroll-margin-top: 1.5rem;
}

.page-faq .faq-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-sec__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-faq .faq-sec__title {
  margin: 0.4rem 0 0;
  font-size: clamp(1.35rem, 3.4vw, 2.05rem);
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-sec__lede {
  max-width: 38rem;
  margin: 0.75rem 0 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(20, 36, 59, 0.72);
}

.page-faq .faq-body {
  margin: 0 0 0.75rem;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(20, 36, 59, 0.8);
}

.page-faq .faq-body:last-of-type {
  margin-bottom: 0;
}

/* 深色章节 */
.page-faq .faq-section--dark {
  margin-inline: calc(var(--faq-pad) * -1);
  padding-inline: var(--faq-pad);
  background: linear-gradient(158deg, var(--deep), var(--night) 82%);
  border-top: 0;
  color: var(--ice);
}

.page-faq .faq-section--dark .faq-sec__title {
  color: var(--ice);
}

.page-faq .faq-section--dark .faq-sec__lede,
.page-faq .faq-section--dark .faq-body {
  color: rgba(246, 248, 251, 0.78);
}

/* ---------- 标签页与手风琴 ---------- */
.page-faq .faq-tabs {
  margin-top: 1.5rem;
}

.page-faq .faq-tabs .tablist {
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid rgba(42, 74, 107, 0.3);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-tabs .tab {
  flex: 0 0 auto;
  appearance: none;
  padding: 0.5rem 1rem;
  font: inherit;
  font-size: 0.84rem;
  color: rgba(20, 36, 59, 0.7);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-tabs .tab:hover {
  color: var(--deep);
  border-color: rgba(42, 74, 107, 0.4);
}

.page-faq .faq-tabs .tab[aria-selected="true"] {
  background: var(--deep);
  border-color: var(--deep);
  color: var(--gold-soft);
}

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

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

.page-faq .faq-panel {
  padding-top: 0.35rem;
}

.page-faq .faq-item {
  border-top: 1px solid rgba(42, 74, 107, 0.22);
}

.page-faq .faq-panel > .faq-item:last-child {
  border-bottom: 1px solid rgba(42, 74, 107, 0.22);
}

.page-faq .faq-q {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  padding: 1.05rem 0.2rem;
  font-size: clamp(0.97rem, 2vw, 1.04rem);
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-q:hover {
  color: var(--cyan);
}

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

.page-faq .faq-q__num {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--gold);
}

.page-faq .faq-q__mark {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--gold);
}

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

.page-faq .faq-item[open] .faq-q__mark::before {
  content: "−";
}

.page-faq .faq-a {
  padding: 0 0.2rem 1.35rem 2.05rem;
  font-size: 0.92rem;
  line-height: 1.85;
  color: rgba(20, 36, 59, 0.78);
}

.page-faq .faq-a p {
  margin: 0 0 0.65rem;
}

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

/* ---------- 宽窄栏 ---------- */
.page-faq .faq-duo {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
  margin-top: 1.5rem;
}

.page-faq .faq-note {
  display: grid;
  gap: 0.9rem;
  align-content: start;
  padding-left: 0.95rem;
  border-left: 1px solid rgba(216, 169, 78, 0.45);
}

.page-faq .faq-note__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--gold-soft);
}

.page-faq .faq-note__v {
  margin: 0.25rem 0 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: rgba(246, 248, 251, 0.74);
}

/* ---------- 步骤 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 0.9rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(246, 248, 251, 0.82);
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0.85rem;
  align-items: start;
  counter-increment: faqstep;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gold-soft);
  border: 1px solid rgba(216, 169, 78, 0.5);
  border-radius: 999px;
}

.page-faq .faq-steps--ink {
  color: rgba(20, 36, 59, 0.82);
}

.page-faq .faq-steps--ink li::before {
  color: var(--deep);
  border-color: rgba(42, 74, 107, 0.4);
}

/* ---------- 提示条 ---------- */
.page-faq .faq-tip {
  margin-top: 1.6rem;
  padding: 1.1rem 1.25rem;
  font-size: 0.9rem;
  line-height: 1.85;
  color: rgba(20, 36, 59, 0.82);
  background: linear-gradient(135deg, rgba(23, 59, 102, 0.09), rgba(216, 169, 78, 0.09));
  border: 1px solid rgba(216, 169, 78, 0.45);
  border-left: 3px solid var(--gold);
  border-radius: 3px;
}

.page-faq .faq-tip__label {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--ember);
}

.page-faq .faq-tip p {
  margin: 0;
}

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

.page-faq .faq-tip a:hover,
.page-faq .faq-tip a:focus-visible {
  color: var(--ember);
  border-bottom-color: var(--ember);
}

/* ---------- 平板章节 ---------- */
.page-faq .faq-shot {
  margin: 0;
}

.page-faq .faq-shot img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(216, 169, 78, 0.25);
  border-radius: 3px;
}

.page-faq .faq-shot figcaption {
  margin-top: 0.55rem;
  font-size: 0.75rem;
  color: rgba(246, 248, 251, 0.6);
}

.page-faq .faq-metrics {
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-metrics li {
  padding: 0.85rem 0.95rem;
  background: rgba(23, 59, 102, 0.55);
  border: 1px solid rgba(216, 169, 78, 0.28);
  border-radius: 3px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.page-faq .faq-metrics b {
  display: block;
  margin-bottom: 0.2rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gold-soft);
}

.page-faq .faq-metrics span {
  font-size: 0.79rem;
  line-height: 1.65;
  color: rgba(246, 248, 251, 0.72);
}

/* ---------- 旧版资料路径 ---------- */
.page-faq .faq-paths {
  display: grid;
  gap: 1rem;
  margin-top: 1.35rem;
}

.page-faq .faq-path {
  padding: 1.1rem 1.2rem;
  background: #fff;
  border: 1px solid rgba(42, 74, 107, 0.18);
  border-radius: 3px;
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-path__k {
  display: block;
  margin-bottom: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-path p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(20, 36, 59, 0.78);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact__list {
  display: grid;
  gap: 0.85rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid rgba(246, 248, 251, 0.16);
}

.page-faq .faq-contact__k {
  flex: 0 0 5.2rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--gold-soft);
}

.page-faq .faq-contact__v {
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--ice);
}

.page-faq .contact-copy {
  margin-left: auto;
  appearance: none;
  padding: 0.35rem 0.85rem;
  font: inherit;
  font-size: 0.76rem;
  color: var(--gold-soft);
  background: transparent;
  border: 1px solid rgba(216, 169, 78, 0.5);
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .contact-copy:hover,
.page-faq .contact-copy:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--night);
  outline: none;
}

.page-faq .contact-copy.is-copied {
  background: var(--gold-soft);
  border-color: var(--gold-soft);
  color: var(--night);
}

.page-faq .faq-contact__note {
  max-width: 36rem;
  margin: 1.25rem 0 0;
  font-size: 0.88rem;
  line-height: 1.85;
  color: rgba(246, 248, 251, 0.75);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.page-faq .faq-contact .btn--ghost {
  border-color: rgba(242, 210, 138, 0.45);
  color: var(--gold-soft);
}

.page-faq .faq-contact .btn--ghost:hover,
.page-faq .faq-contact .btn--ghost:focus-visible {
  border-color: var(--gold);
  color: var(--ice);
}

/* ---------- 断点 ---------- */
@media (min-width: 44em) {
  .page-faq .faq-paths {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 52em) {
  .page-faq .faq-duo {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 0.9fr);
  }

  .page-faq .faq-duo--media {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 60em) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.85fr);
    align-items: end;
  }
}

@media (min-width: 64em) {
  .page-faq .faq-shell {
    grid-template-columns: 13rem minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 1.5rem;
  }

  .page-faq .faq-index ol {
    display: grid;
    gap: 0.1rem;
    overflow: visible;
    padding-top: 0;
    border-top: 0;
    border-left: 1px solid rgba(42, 74, 107, 0.35);
  }

  .page-faq .faq-index a {
    margin-left: -1px;
    padding: 0.5rem 0.65rem;
    white-space: normal;
    border-bottom: 0;
    border-left: 2px solid transparent;
  }

  .page-faq .faq-index a:hover,
  .page-faq .faq-index a:focus-visible {
    background: rgba(46, 111, 158, 0.08);
    border-left-color: var(--gold);
  }

  .page-faq .faq-section--dark {
    margin-inline: 0;
    padding-inline: clamp(1.25rem, 2.5vw, 2.25rem);
    border-radius: 3px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q,
  .page-faq .faq-index a,
  .page-faq .contact-copy,
  .page-faq .faq-tabs .tab,
  .page-faq .breadcrumb a {
    transition: none;
  }
}
<<<END>>>