.page-faq {
  --faq-line: rgba(167, 155, 255, 0.16);
  --faq-pause: clamp(56px, 8vw, 96px);
  --faq-accent: var(--volt-400);
  background: var(--ink-900);
  color: var(--slate-200);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-faq a {
  color: var(--violet-300);
}

.page-faq .faq-group,
.page-faq .faq-feedback {
  scroll-margin-top: 88px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(22px, 4vw, 44px) 0 clamp(30px, 5vw, 56px);
  background:
    radial-gradient(115% 85% at 5% -15%, rgba(91, 75, 255, 0.34), transparent 62%),
    radial-gradient(90% 80% at 98% -5%, rgba(53, 214, 240, 0.16), transparent 66%),
    var(--ink-900);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .jy-breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(199, 206, 228, 0.7);
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq .jy-breadcrumb a {
  text-decoration: none;
}

.page-faq .jy-breadcrumb a:hover {
  color: var(--volt-400);
}

.page-faq .jy-breadcrumb__sep {
  padding: 0 8px;
  color: rgba(167, 155, 255, 0.6);
}

.page-faq .faq-h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 7.2vw, 74px);
  line-height: 0.98;
  letter-spacing: -0.01em;
  color: var(--white);
  margin: 10px 0 0;
  max-width: 18ch;
  text-wrap: balance;
}

.page-faq .jy-lead {
  max-width: 60ch;
  margin-top: clamp(14px, 2.4vw, 22px);
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.75;
  color: var(--slate-200);
}

.page-faq .faq-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-faq .faq-hero__chips .jy-tag {
  text-decoration: none;
  transition: transform 120ms var(--ease), border-color 120ms var(--ease);
}

.page-faq .faq-hero__chips .jy-tag:hover,
.page-faq .faq-hero__chips .jy-tag:focus-visible {
  transform: translateY(-2px);
  border-color: var(--volt-400);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(26px, 4vw, 44px);
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-stats__cell {
  background: var(--ink-900);
  padding: 16px 18px;
}

.page-faq .faq-stats .jy-stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.4vw, 26px);
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-faq .faq-stats .jy-stat__label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: rgba(199, 206, 228, 0.72);
}

/* ---------- 快速入口 ---------- */
.page-faq .faq-entry {
  position: relative;
  padding-top: var(--faq-pause);
}

.page-faq .jy-chapter-head {
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-faq .jy-chapter-head .jy-h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.25;
  color: var(--white);
  margin: 8px 0 0;
}

.page-faq .jy-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--volt-400);
}

.page-faq .faq-entry__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-faq .faq-entry__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px 18px;
  text-decoration: none;
  color: inherit;
  background: linear-gradient(158deg, var(--navy-800), rgba(14, 21, 51, 0.5));
  border: 1px solid var(--faq-line);
  transition: transform 120ms var(--ease), border-color 120ms var(--ease);
}

.page-faq .faq-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 22px;
  height: 22px;
  background: var(--ink-900);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}

.page-faq .faq-card:hover,
.page-faq .faq-card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--volt-400);
}

.page-faq .faq-card__icon {
  color: var(--volt-400);
  line-height: 0;
}

.page-faq .faq-card__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber-400);
}

.page-faq .faq-card__title {
  font-family: var(--font-serif);
  font-size: 21px;
  line-height: 1.3;
  color: var(--white);
  margin: 0;
}

.page-faq .faq-card__text {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(199, 206, 228, 0.82);
  margin: 0;
}

.page-faq .faq-card__go {
  margin-top: auto;
  padding-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--violet-300);
}

.page-faq .faq-card:hover .faq-card__go {
  color: var(--volt-400);
}

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

.page-faq .faq-entry__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--faq-line);
  filter: saturate(0.88) contrast(1.02);
}

.page-faq .faq-entry__figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(199, 206, 228, 0.62);
}

/* ---------- 手风琴分组 ---------- */
.page-faq .faq-groups {
  display: block;
}

.page-faq .faq-group {
  position: relative;
  padding-top: var(--faq-pause);
}

.page-faq .faq-group + .faq-group {
  margin-top: var(--faq-pause);
}

.page-faq .faq-group + .faq-group::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--violet-300) 18%, var(--violet-300) 82%, transparent);
  opacity: 0.3;
  transform: rotate(-0.5deg);
  transform-origin: left center;
}

.page-faq #faq-account { --faq-accent: var(--volt-400); }
.page-faq #faq-schedule { --faq-accent: var(--volt-400); }
.page-faq #faq-data { --faq-accent: var(--cyan-400); }
.page-faq #faq-matrix { --faq-accent: var(--violet-300); }
.page-faq #faq-feedback { --faq-accent: var(--amber-400); }

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 12px;
  align-items: start;
  margin-bottom: 18px;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--faq-accent);
  padding-top: 7px;
}

.page-faq .faq-group__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(199, 206, 228, 0.55);
  margin: 0 0 4px;
}

.page-faq .faq-group__title {
  font-family: var(--font-serif);
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.25;
  color: var(--white);
  margin: 0;
}

.page-faq .faq-group__lead {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(199, 206, 228, 0.75);
  max-width: 52ch;
}

.page-faq .faq-item {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-group__list .faq-item:last-child {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-item__sum {
  display: grid;
  grid-template-columns: 26px 1fr 18px;
  align-items: start;
  gap: 10px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--white);
  transition: color 120ms var(--ease);
}

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

.page-faq .faq-item__sum:focus-visible {
  outline: 2px solid var(--violet-300);
  outline-offset: 3px;
}

.page-faq .faq-item__sum::after {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 8px;
  justify-self: center;
  border-right: 2px solid var(--violet-300);
  border-bottom: 2px solid var(--violet-300);
  transform: rotate(45deg);
  transition: transform 160ms var(--ease);
}

.page-faq .faq-item[open] > .faq-item__sum::after {
  transform: rotate(-135deg);
  border-color: var(--faq-accent);
}

.page-faq .faq-item__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(167, 155, 255, 0.7);
  padding-top: 3px;
  transition: color 120ms var(--ease);
}

.page-faq .faq-item[open] .faq-item__idx {
  color: var(--faq-accent);
}

.page-faq .faq-item__q {
  display: block;
}

.page-faq .faq-item__ans {
  position: relative;
  padding: 0 0 18px 36px;
}

.page-faq .faq-item__ans::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 2px;
  bottom: 16px;
  width: 2px;
  background: linear-gradient(180deg, var(--faq-accent), rgba(59, 240, 140, 0));
  opacity: 0.65;
}

.page-faq .faq-item__ans p {
  margin: 0 0 8px;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(199, 206, 228, 0.88);
  max-width: 62ch;
}

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

.page-faq .faq-item__ans a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__ans a:hover {
  color: var(--volt-400);
}

/* ---------- 反馈章节 ---------- */
.page-faq .faq-feedback {
  position: relative;
  padding-top: var(--faq-pause);
}

.page-faq .faq-feedback::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--amber-400) 18%, var(--amber-400) 82%, transparent);
  opacity: 0.3;
  transform: rotate(0.5deg);
  transform-origin: left center;
}

.page-faq .faq-feedback__figure {
  margin: 0 0 clamp(24px, 4vw, 36px);
}

.page-faq .faq-feedback__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--faq-line);
  filter: saturate(0.9) contrast(1.03);
}

.page-faq .faq-feedback__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-faq .faq-feedback .jy-h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.25;
  color: var(--white);
  margin: 8px 0 0;
}

.page-faq .faq-feedback .jy-prose {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(199, 206, 228, 0.88);
}

.page-faq .faq-feedback__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-feedback__actions .jy-btn {
  text-decoration: none;
}

.page-faq .faq-feedback__checklist {
  padding: 20px 18px;
  background: var(--navy-800);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--amber-400);
}

.page-faq .faq-feedback__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber-400);
}

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

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(199, 206, 228, 0.88);
}

.page-faq .faq-steps__n {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan-400);
  padding-top: 3px;
}

.page-faq .faq-feedback__checklist .jy-note {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(199, 206, 228, 0.6);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-entry__cards {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }

  .page-faq .faq-group__head {
    grid-template-columns: 44px 1fr;
    gap: 16px;
  }

  .page-faq .faq-item__sum {
    grid-template-columns: 34px 1fr 22px;
    padding: 18px 0;
    font-size: 16.5px;
  }

  .page-faq .faq-item__ans {
    padding-left: 44px;
  }

  .page-faq .faq-item__ans::before {
    left: 16px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-entry__grid {
    grid-template-columns: minmax(0, 1.85fr) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-faq .faq-entry__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-feedback__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 36px;
    align-items: start;
  }

  .page-faq .faq-item__sum {
    grid-template-columns: 40px 1fr 24px;
  }

  .page-faq .faq-item__ans {
    padding-left: 50px;
  }

  .page-faq .faq-item__ans::before {
    left: 19px;
  }

  .page-faq .faq-item__sum:hover {
    color: var(--volt-400);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-card,
  .page-faq .faq-item__sum::after,
  .page-faq .faq-hero__chips .jy-tag {
    transition: none;
  }

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