/* ===== 疑问解答页 ===== */
.page-faq {
  --faq-rail-w: 15.5rem;
  --faq-soft: #3C4A57;
  background: var(--abyss-950);
  color: var(--steel-100);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(1.1rem, 2.4vw, 1.75rem) clamp(2.5rem, 5.5vw, 4rem);
  background:
    radial-gradient(115% 100% at 92% -12%, rgba(214, 168, 75, .18), transparent 58%),
    linear-gradient(180deg, var(--abyss-900), var(--abyss-950));
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: auto -14% 20% auto;
  width: 62%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-gold));
  transform: rotate(-17deg);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -7vw;
  top: -9vw;
  width: 26vw;
  height: 26vw;
  border: 1px solid rgba(41, 199, 201, .2);
  border-radius: 50%;
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(1.5rem, 3.5vw, 2.5rem);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(.85rem, 1.6vw, 1.25rem);
  max-width: 56rem;
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.05rem, 6.6vw, 4.05rem);
  line-height: 1.05;
  letter-spacing: -.015em;
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 54ch;
  font-size: clamp(1rem, 1.15vw, 1.0625rem);
  line-height: 1.8;
  color: var(--steel-400);
}

.page-faq .faq-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2.25rem;
  margin: .5rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-meta__item {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding-left: .75rem;
  border-left: 2px solid var(--line-gold);
}

.page-faq .faq-meta__num {
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  line-height: 1;
  color: var(--gold-300);
}

.page-faq .faq-meta__label {
  font-size: .8125rem;
  color: var(--steel-400);
}

/* ---------- 主体：分类轨道 + 折叠问答 ---------- */
.page-faq .faq-body {
  padding-block: clamp(2rem, 4vw, 3.5rem);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  grid-template-columns: minmax(0, 1fr);
}

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

.page-faq .faq-rail__title {
  margin: 0 0 .75rem;
  font-size: .8125rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold-500);
}

.page-faq .faq-cats {
  display: flex;
  gap: .5rem;
  margin: 0;
  padding: 0 0 .35rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-cat-link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .6rem .85rem;
  white-space: nowrap;
  font-size: .9375rem;
  color: var(--steel-400);
  text-decoration: none;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(12, 33, 56, .92), rgba(8, 25, 42, .92));
  transition: color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-cat-link:hover,
.page-faq .faq-cat-link:focus-visible {
  color: var(--gold-300);
  border-color: var(--line-gold);
  transform: translateY(-2px);
}

.page-faq .faq-cat-link__dot {
  width: .5rem;
  height: .5rem;
  border-radius: 50%;
  background: var(--gold-500);
}

.page-faq .faq-cat-link[data-cat="draws"] .faq-cat-link__dot { background: var(--cyan-400); }
.page-faq .faq-cat-link[data-cat="check"] .faq-cat-link__dot { background: var(--cinnabar-500); }
.page-faq .faq-cat-link[data-cat="version"] .faq-cat-link__dot { background: var(--gold-300); }
.page-faq .faq-cat-link[data-cat="support"] .faq-cat-link__dot { background: var(--steel-100); }

.page-faq .faq-cat-link__num {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--steel-400);
}

.page-faq .faq-rail__note {
  margin: 1.25rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: .875rem;
  line-height: 1.75;
  color: var(--steel-400);
}

.page-faq .faq-rail__link {
  color: var(--gold-300);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
}

.page-faq .faq-rail__link:hover {
  color: var(--gold-500);
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: clamp(2rem, 4vw, 3rem);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: .75rem;
  padding-bottom: .75rem;
  margin-bottom: .75rem;
  border-bottom: 1px solid var(--line-gold);
  scroll-margin-top: calc(var(--bar-h) + 1rem);
}

.page-faq .faq-group__badge {
  font-family: var(--font-mono);
  font-size: .8125rem;
  color: var(--gold-500);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  letter-spacing: -.01em;
}

.page-faq .faq-group__intro {
  margin: 0 0 1rem;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--steel-400);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(12, 33, 56, .5), rgba(6, 17, 31, .32));
}

.page-faq .qa__q {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: 1rem clamp(.75rem, 2vw, 1.1rem);
  cursor: pointer;
  list-style: none;
  font-size: clamp(.975rem, 1.2vw, 1.0625rem);
  font-weight: 600;
  line-height: 1.55;
  color: var(--steel-100);
  transition: color .2s var(--ease), background-color .2s var(--ease);
}

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

.page-faq .qa__q:hover,
.page-faq .qa__q:focus-visible {
  color: var(--gold-300);
  background: rgba(214, 168, 75, .06);
}

.page-faq .qa__q::after {
  content: "";
  margin-left: auto;
  flex: 0 0 auto;
  width: .5rem;
  height: .5rem;
  border-right: 2px solid var(--gold-500);
  border-bottom: 2px solid var(--gold-500);
  transform: rotate(45deg);
  transition: transform .25s var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  transform: rotate(-135deg);
}

.page-faq .qa__idx {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .8125rem;
  color: var(--cyan-400);
}

.page-faq .qa__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .qa__a {
  padding: 0 clamp(.75rem, 2vw, 1.1rem) 1.15rem;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--steel-400);
}

.page-faq .qa[open] .qa__a {
  animation: pageFaqReveal .3s var(--ease);
}

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

.page-faq .qa__link {
  color: var(--gold-300);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
}

.page-faq .qa__link:hover {
  color: var(--gold-500);
}

.page-faq .qa__steps {
  margin: .65rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
  display: grid;
  gap: .45rem;
}

.page-faq .qa__steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 1.75rem minmax(0, 1fr);
  gap: .5rem;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--steel-400);
}

.page-faq .qa__steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: .78rem;
  line-height: 1.95;
  color: var(--cyan-400);
}

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

/* ---------- 入门路径（浅色对比段） ---------- */
.page-faq .faq-path {
  background: var(--steel-100);
  color: var(--ink-900);
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-faq .faq-path__head {
  max-width: 46rem;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .faq-path__head .eyebrow {
  color: #8a6a1f;
}

.page-faq .faq-path__title {
  margin: .5rem 0 .75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  line-height: 1.12;
  letter-spacing: -.015em;
  color: var(--ink-900);
}

.page-faq .faq-path__lede {
  margin: 0;
  font-size: clamp(.9875rem, 1.1vw, 1.0625rem);
  line-height: 1.8;
  color: var(--faq-soft);
}

.page-faq .faq-path__media {
  margin: 0 0 clamp(1.5rem, 3vw, 2.25rem);
}

.page-faq .faq-path__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(16, 24, 32, .12);
}

.page-faq .faq-path__grid {
  display: grid;
  gap: clamp(.85rem, 2vw, 1.15rem);
  grid-template-columns: minmax(0, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  padding: 1.35rem 1.25rem 1.5rem;
  background: var(--mist-50);
  border-top: 3px solid var(--gold-500);
  box-shadow: 0 1px 0 rgba(16, 24, 32, .08);
}

.page-faq .faq-step__num {
  display: block;
  margin-bottom: .5rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .12em;
  color: #8a6a1f;
}

.page-faq .faq-step__title {
  margin: 0 0 .45rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--ink-900);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--faq-soft);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-contact {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  background:
    radial-gradient(90% 120% at 8% 0%, rgba(41, 199, 201, .1), transparent 62%),
    var(--abyss-900);
  border-top: 1px solid var(--line);
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
}

.page-faq .faq-contact__card {
  padding: clamp(1.25rem, 3vw, 2rem);
  background: linear-gradient(155deg, rgba(12, 33, 56, .96), rgba(6, 17, 31, .96));
  border: 1px solid var(--line-gold);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-faq .faq-contact__title {
  margin: .5rem 0 .6rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  line-height: 1.15;
}

.page-faq .faq-contact__lede {
  margin: 0 0 1.25rem;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--steel-400);
}

.page-faq .faq-contact__list {
  margin: 0;
  padding: 0;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .35rem .75rem;
  padding: .7rem 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-contact__label {
  flex: 0 0 5.5rem;
  font-size: .8125rem;
  letter-spacing: .08em;
  color: var(--gold-500);
}

.page-faq .faq-contact__value {
  flex: 1 1 12rem;
  min-width: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .6rem;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--steel-100);
  overflow-wrap: anywhere;
}

.page-faq .faq-copy {
  padding: .3rem .7rem;
  font-size: .75rem;
}

.page-faq .faq-contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem .8rem;
  margin-top: 1.35rem;
}

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

.page-faq .faq-contact__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
}

/* ---------- 更新说明 ---------- */
.page-faq .faq-updates {
  background: var(--abyss-950);
  border-top: 1px solid var(--line);
}

.page-faq .faq-updates__inner {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-updates__title {
  margin: .5rem 0 .75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  line-height: 1.15;
}

.page-faq .faq-updates__text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--steel-400);
}

.page-faq .faq-updates__list {
  display: grid;
  gap: .75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-update {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .85rem;
  align-items: start;
  padding: .9rem 1rem;
  border-left: 2px solid var(--line-cyan);
  background: rgba(12, 33, 56, .6);
}

.page-faq .faq-update__text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--steel-400);
}

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

@media (min-width: 860px) {
  .page-faq .faq-updates__inner {
    grid-template-columns: .85fr 1.15fr;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-contact__grid {
    grid-template-columns: 1.1fr .9fr;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--bar-h) + 1.25rem);
  }

  .page-faq .faq-cats {
    flex-direction: column;
    overflow: visible;
    gap: .4rem;
    padding-bottom: 0;
  }

  .page-faq .faq-cat-link {
    width: 100%;
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa[open] .qa__a { animation: none; }
  .page-faq .faq-cat-link:hover { transform: none; }
  .page-faq .qa__q::after { transition: none; }
}