.page-faq {
  --faq-rail: 248px;
  --faq-line: 1px solid rgba(51, 80, 143, 0.6);
  color: var(--snow-50);
  padding-bottom: clamp(72px, 9vw, 132px);
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6em;
  list-style: none;
  margin: 0 0 clamp(24px, 4vw, 44px);
  padding: 0;
}

.page-faq .breadcrumb li {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--mist-300);
}

.page-faq .breadcrumb a {
  color: var(--mist-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--gold-300);
  border-bottom-color: var(--gold-300);
}

/* 首屏 */
.page-faq .faq-hero {
  padding: clamp(64px, 8vw, 118px) 0 clamp(36px, 5vw, 64px);
  background:
    radial-gradient(120% 90% at 82% -14%, rgba(217, 164, 65, 0.16), rgba(217, 164, 65, 0) 58%),
    linear-gradient(180deg, var(--ink-950) 0%, var(--ink-900) 62%, rgba(16, 28, 62, 0) 100%);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 3vw, 28px);
  align-items: start;
}

.page-faq .faq-hero__annotation {
  display: none;
}

.page-faq .faq-hero__body h1 {
  font-family: var(--font-serif);
  font-size: clamp(38px, 8vw, 64px);
  line-height: 1.12;
  letter-spacing: 0.02em;
  margin: 10px 0 0;
  color: var(--snow-50);
}

.page-faq .faq-hero__body .lead {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 66ch;
  font-size: clamp(16px, 1.9vw, 17.5px);
  line-height: 1.85;
  color: rgba(247, 248, 251, 0.86);
}

.page-faq .faq-console {
  margin-top: clamp(26px, 4vw, 40px);
  padding: clamp(18px, 2.6vw, 24px);
  border-radius: var(--radius-md);
  background: linear-gradient(140deg, rgba(30, 49, 96, 0.72), rgba(10, 18, 41, 0.92));
  border: 1px solid rgba(51, 80, 143, 0.55);
}

.page-faq .faq-console__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
}

.page-faq .faq-console .console__value {
  display: block;
  font-family: var(--font-sans);
  font-size: clamp(17px, 2.4vw, 21px);
  letter-spacing: 0.04em;
  color: var(--gold-300);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-console .console__label {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--mist-300);
}

.page-faq .faq-figure {
  margin: clamp(28px, 4vw, 44px) 0 0;
}

/* 左右分栏 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  padding-top: clamp(44px, 6vw, 80px);
}

.page-faq .faq-rail {
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(195, 201, 218, 0.16);
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-sans);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-500);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0 0 10px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-rail__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 8px 15px;
  border-radius: 999px;
  border: var(--faq-line);
  color: var(--mist-300);
  font-size: 13.5px;
  text-decoration: none;
  transition: color 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--gold-300);
  border-color: var(--gold-700);
  background: rgba(30, 49, 96, 0.5);
}

.page-faq .faq-rail__num {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold-500);
  font-variant-numeric: tabular-nums;
}

/* 章节 */
.page-faq .faq-section {
  padding: clamp(32px, 4.6vw, 54px) 0;
  border-top: 1px solid rgba(195, 201, 218, 0.14);
  scroll-margin-top: 96px;
}

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

.page-faq .faq-section__head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .faq-section__num {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold-500);
}

.page-faq .faq-section__head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(23px, 3.4vw, 32px);
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--snow-50);
}

.page-faq .faq-section__note {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist-300);
}

.page-faq .faq-section__tagline {
  margin: 4px 0 0;
}

/* 章节目录 */
.page-faq .faq-chapters {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-chapter {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  column-gap: 12px;
  row-gap: 4px;
  align-items: baseline;
  padding: 15px 17px;
  border-radius: var(--radius-sm);
  background: rgba(30, 49, 96, 0.42);
  border: 1px solid rgba(51, 80, 143, 0.5);
  transition: border-color 0.3s ease, background 0.3s ease;
}

.page-faq .faq-chapter:hover {
  border-color: var(--gold-700);
  background: rgba(30, 49, 96, 0.68);
}

.page-faq .faq-chapter__no {
  grid-column: 1;
  grid-row: 1;
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold-500);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-chapter__name {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-serif);
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--snow-50);
}

.page-faq .faq-chapter__meta {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--mist-300);
  font-variant-numeric: tabular-nums;
}

/* 问答 */
.page-faq .faq-q {
  border-top: 1px solid rgba(195, 201, 218, 0.14);
}

.page-faq .faq-q:last-of-type {
  border-bottom: 1px solid rgba(195, 201, 218, 0.14);
}

.page-faq .faq-q__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 2px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-serif);
  font-size: clamp(16.5px, 2vw, 19px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--snow-50);
  transition: color 0.3s ease;
}

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

.page-faq .faq-q__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-sans);
  font-size: 19px;
  line-height: 1.3;
  color: var(--gold-500);
}

.page-faq .faq-q[open] > .faq-q__q {
  color: var(--gold-300);
}

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

.page-faq .faq-q__q:hover {
  color: var(--gold-300);
}

.page-faq .faq-q__a {
  margin: 0 0 6px 6px;
  padding: 2px 4px 20px 18px;
  border-left: 2px solid rgba(217, 164, 65, 0.34);
}

.page-faq .faq-q__a p {
  margin: 0 0 10px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(247, 248, 251, 0.84);
}

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

.page-faq .faq-q__a a {
  color: var(--gold-300);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 164, 65, 0.45);
}

.page-faq .faq-q__a a:hover {
  border-bottom-color: var(--gold-300);
}

.page-faq .faq-q__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

/* 适配核对 */
.page-faq .faq-compat {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 32px);
}

.page-faq .faq-steps {
  counter-reset: step;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  list-style: none;
  margin: 0 0 clamp(24px, 3vw, 34px);
  padding: 0;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 42px;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(247, 248, 251, 0.84);
}

.page-faq .faq-steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 1px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--gold-500);
  color: var(--ink-950);
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 700;
}

.page-faq .faq-compat__side .media {
  margin: 0;
}

/* 求助区 */
.page-faq .faq-contact {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 42px);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(30, 49, 96, 0.85), rgba(10, 18, 41, 0.95));
  border: 1px solid rgba(217, 164, 65, 0.28);
}

.page-faq .faq-contact__band {
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--banner-cyan) 0 20%,
    var(--banner-white) 20% 40%,
    var(--banner-red) 40% 60%,
    var(--banner-green) 60% 80%,
    var(--banner-yellow) 80% 100%
  );
}

.page-faq .faq-contact__title {
  margin: 8px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--snow-50);
}

.page-faq .faq-contact__list {
  display: grid;
  gap: 10px;
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.page-faq .faq-contact__list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 248, 251, 0.86);
}

.page-faq .faq-contact__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-500);
}

.page-faq .faq-contact__meta {
  margin: 20px 0 0;
  max-width: 64ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist-300);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-footnote {
  margin: clamp(22px, 3vw, 30px) 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist-300);
}

.page-faq .faq-footnote a {
  color: var(--gold-300);
  text-decoration: none;
  border-bottom: 1px solid rgba(240, 206, 134, 0.45);
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--gold-500);
  outline-offset: 3px;
}

@media (min-width: 700px) {
  .page-faq .faq-chapters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-console__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
  }

  .page-faq .faq-steps li {
    padding: 42px 18px 0 0;
    font-size: 14px;
  }

  .page-faq .faq-steps li::before {
    top: 0;
  }

  .page-faq .faq-steps li::after {
    content: "";
    position: absolute;
    top: 14px;
    left: 34px;
    right: 8px;
    height: 1px;
    background: linear-gradient(90deg, rgba(217, 164, 65, 0.6), rgba(51, 80, 143, 0.35));
  }

  .page-faq .faq-steps li:last-child::after {
    display: none;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 62px minmax(0, 1fr);
    gap: clamp(20px, 3vw, 36px);
  }

  .page-faq .faq-hero__annotation {
    display: block;
    margin: 0;
  }

  .page-faq .faq-compat {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: clamp(34px, 4vw, 64px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    padding-bottom: 0;
    border-bottom: 0;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-rail__link {
    width: 100%;
    padding: 10px 14px;
    border: 0;
    border-left: 2px solid rgba(51, 80, 143, 0.5);
    border-radius: 0 999px 999px 0;
    justify-content: flex-start;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    border-left-color: var(--gold-500);
    background: rgba(30, 49, 96, 0.6);
  }
}

@media (min-width: 1240px) {
  .page-faq .faq-chapters {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}