.page-faq {
  --faq-accent: var(--maple);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-top: calc(var(--header-h) + clamp(38px, 7vw, 68px));
  padding-bottom: clamp(34px, 6vw, 62px);
  color: var(--paper);
  background:
    radial-gradient(105% 78% at 88% 4%, rgba(108, 92, 231, .28), transparent 58%),
    radial-gradient(88% 68% at 4% 0%, rgba(46, 125, 166, .30), transparent 60%),
    linear-gradient(155deg, #06201A 0%, var(--fir-deep) 44%, #0E3547 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  right: -14%;
  top: 6%;
  width: 72%;
  height: 82%;
  background: linear-gradient(212deg, rgba(200, 16, 46, .58), rgba(217, 154, 43, .06) 72%);
  clip-path: polygon(36% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: repeating-linear-gradient(114deg, rgba(253, 252, 248, .055) 0 1px, transparent 1px 28px);
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumbs .crumb {
  color: rgba(253, 252, 248, .68);
}

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

.page-faq .faq-hero .eyebrow {
  margin: 18px 0 0;
  color: var(--gold);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .18em;
}

.page-faq .faq-hero .display {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2rem, 6.2vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  margin: 14px 0 18px;
  max-width: 18ch;
}

.page-faq .faq-hero .lead {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(1rem, 2.2vw, 1.1rem);
  line-height: 1.75;
  color: rgba(253, 252, 248, .84);
}

.page-faq .hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 40px;
  list-style: none;
  margin: 32px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid rgba(253, 252, 248, .18);
}

.page-faq .hero-facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .hero-facts strong {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -.02em;
}

.page-faq .hero-facts span {
  font-size: .875rem;
  color: rgba(253, 252, 248, .72);
}

.page-faq .hero-jumps {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.page-faq .hero-jumps a {
  display: inline-flex;
  align-items: center;
  padding: 9px 17px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(253, 252, 248, .3);
  background: rgba(253, 252, 248, .07);
  color: var(--paper);
  font-size: .875rem;
  font-weight: 600;
  text-decoration: none;
  transition: background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .hero-jumps a:hover,
.page-faq .hero-jumps a:focus-visible {
  background: var(--maple);
  border-color: var(--maple);
  color: var(--snow);
}

.page-faq .faq-hero-media {
  position: relative;
  z-index: 1;
  margin-top: clamp(30px, 5vw, 52px);
}

.page-faq .faq-hero-media .media-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 18px 44px rgba(0, 0, 0, .3);
}

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

/* ---------- 问答主区 ---------- */
.page-faq .faq-answers {
  padding: clamp(46px, 8vw, 86px) 0 clamp(34px, 5vw, 56px);
}

.page-faq .faq-answers-head {
  max-width: 66ch;
}

.page-faq .faq-answers-head .eyebrow {
  color: var(--maple);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: .78rem;
  letter-spacing: .18em;
  margin: 0 0 10px;
}

.page-faq .faq-answers-head h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -.02em;
  margin: 0 0 12px;
}

.page-faq .faq-answers-lede {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.75;
}

.page-faq .faq-answers .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  margin: 24px 0 34px;
}

.page-faq .faq-answers .filter-btn {
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: var(--snow);
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: .85rem;
  font-weight: 700;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-answers .filter-btn:hover {
  border-color: var(--maple);
  color: var(--maple);
}

.page-faq .faq-answers .filter-btn[data-active] {
  background: var(--maple);
  border-color: var(--maple);
  color: var(--snow);
}

.page-faq .filter-status {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--ink-faint);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
}

/* 左侧索引 */
.page-faq .faq-index {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
  background:
    linear-gradient(178deg, rgba(11, 110, 79, .085), rgba(46, 125, 166, .06));
  padding: 20px 20px 10px;
  min-width: 0;
}

.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: .76rem;
  letter-spacing: .2em;
  color: var(--fir);
}

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

.page-faq .faq-index-group:first-of-type {
  border-top: 0;
}

.page-faq .faq-index-group > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  list-style: none;
  cursor: pointer;
  padding: 12px 2px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: .95rem;
  color: var(--ink);
}

.page-faq .faq-index-group > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-index-group > summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--maple);
}

.page-faq .faq-index-group[open] > summary::after {
  content: "\2212";
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0 0 10px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index-link {
  display: block;
  padding: 7px 10px;
  border-left: 2px solid transparent;
  border-radius: 4px 10px 10px 4px;
  font-size: .875rem;
  line-height: 1.5;
  color: var(--ink-soft);
  text-decoration: none;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  background: var(--snow);
  border-left-color: var(--maple);
  color: var(--maple);
}

/* 右侧问答流 */
.page-faq .faq-stream {
  display: grid;
  gap: 38px;
  min-width: 0;
}

.page-faq .faq-group {
  --group-accent: var(--maple);
  scroll-margin-top: calc(var(--header-h) + 26px);
  min-width: 0;
}

.page-faq .faq-group[data-accent="fir"] {
  --group-accent: var(--fir);
}

.page-faq .faq-group[data-accent="glacier"] {
  --group-accent: var(--glacier);
}

.page-faq .faq-group[data-accent="gold"] {
  --group-accent: var(--gold);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  position: relative;
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-group-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 72px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: var(--group-accent);
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--group-accent);
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.2rem, 3vw, 1.55rem);
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-item {
  position: relative;
  margin-bottom: 12px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid rgba(11, 110, 79, .14);
  border-radius: var(--radius-md);
  background: var(--snow);
  box-shadow: var(--shadow-1);
  scroll-margin-top: calc(var(--header-h) + 30px);
  transition: box-shadow .22s var(--ease), border-color .22s var(--ease);
}

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

.page-faq .faq-item:hover {
  box-shadow: var(--shadow-2);
}

.page-faq .faq-item[open] {
  border-left-color: var(--group-accent);
  box-shadow: var(--shadow-2);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  list-style: none;
  cursor: pointer;
  padding: 18px 20px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.5;
  color: var(--ink);
}

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

.page-faq .faq-q-mark {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border: 2px solid var(--group-accent);
  border-radius: 50%;
  transition: background .2s var(--ease);
}

.page-faq .faq-q-mark::before,
.page-faq .faq-q-mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--group-accent);
  transform: translate(-50%, -50%);
}

.page-faq .faq-q-mark::before {
  width: 10px;
  height: 2px;
}

.page-faq .faq-q-mark::after {
  width: 2px;
  height: 10px;
  transition: opacity .2s var(--ease);
}

.page-faq .faq-item[open] .faq-q-mark::after {
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 20px 20px 54px;
  font-size: .96rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-faq .faq-item[open] .faq-a {
  animation: faq-answer-in .26s var(--ease) both;
}

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

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

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

.page-faq .faq-a a {
  color: var(--glacier);
  text-decoration: underline;
  text-decoration-color: rgba(46, 125, 166, .45);
  text-underline-offset: 3px;
}

.page-faq .faq-a a:hover {
  color: var(--maple);
  text-decoration-color: var(--maple);
}

/* ---------- 相关页面 ---------- */
.page-faq .faq-related {
  padding: clamp(44px, 7vw, 76px) 0;
  background: linear-gradient(180deg, var(--paper) 0%, #F1F6F4 45%, var(--paper) 100%);
}

.page-faq .faq-related-title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.3rem, 3.4vw, 1.8rem);
  letter-spacing: -.02em;
  margin: 0 0 24px;
}

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

.page-faq .faq-related-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 22px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-soft);
  background: var(--snow);
  box-shadow: var(--shadow-1);
  text-decoration: none;
  color: var(--ink);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}

.page-faq .faq-related-card:hover,
.page-faq .faq-related-card:focus-visible {
  transform: translateY(-3px);
  box-shadow: var(--shadow-2);
  border-color: rgba(11, 110, 79, .3);
}

.page-faq .faq-related-card .tag {
  align-self: flex-start;
}

.page-faq .faq-related-heading {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: -.01em;
}

.page-faq .faq-related-text {
  font-size: .9rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support {
  padding: clamp(20px, 4vw, 40px) 0 clamp(56px, 9vw, 96px);
}

.page-faq .faq-support-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
  padding: clamp(24px, 5vw, 46px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
  background:
    radial-gradient(72% 118% at 94% 10%, rgba(200, 16, 46, .15), transparent 62%),
    radial-gradient(62% 104% at 2% 96%, rgba(11, 110, 79, .16), transparent 60%),
    linear-gradient(140deg, rgba(46, 125, 166, .12), rgba(217, 154, 43, .09));
}

.page-faq .faq-support-art img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

.page-faq .faq-support-copy .eyebrow {
  margin: 0 0 10px;
  color: var(--fir);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: .78rem;
  letter-spacing: .18em;
}

.page-faq .faq-support-copy h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.35rem, 3.6vw, 1.9rem);
  line-height: 1.22;
  letter-spacing: -.02em;
  margin: 0 0 12px;
}

.page-faq .faq-support-copy > p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.78;
  max-width: 66ch;
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 22px 0 26px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  min-width: 0;
}

.page-faq .faq-contact-label {
  flex: 0 0 auto;
  min-width: 4.5em;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--fir);
}

.page-faq .faq-contact-value {
  font-size: .95rem;
  color: var(--ink);
  word-break: break-all;
}

.page-faq .copy-btn {
  padding: 4px 13px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: var(--snow);
  color: var(--maple);
  font-family: var(--font-body);
  font-size: .76rem;
  font-weight: 700;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .copy-btn:hover {
  background: var(--maple);
  border-color: var(--maple);
  color: var(--snow);
}

.page-faq .copy-btn[data-copied] {
  background: var(--fir);
  border-color: var(--fir);
  color: var(--snow);
}

.page-faq .faq-support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-related-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-support-inner {
    grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 288px minmax(0, 1fr);
    gap: 50px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-support-inner {
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-a {
    animation: none;
  }

  .page-faq .faq-related-card,
  .page-faq .hero-jumps a,
  .page-faq .faq-item {
    transition: none;
  }
}