.page-faq {
  --faq-gap: clamp(1.25rem, 4vw, 2.5rem);
  --faq-panel: rgba(23, 26, 58, 0.72);
  color: var(--stardust);
  background:
    radial-gradient(115% 55% at 88% -6%, rgba(108, 75, 232, 0.30), transparent 62%),
    radial-gradient(85% 48% at 2% 26%, rgba(232, 107, 176, 0.12), transparent 66%),
    var(--void);
  padding-block: clamp(1.5rem, 4vw, 2.75rem) clamp(4rem, 9vw, 7rem);
}

.page-faq a {
  color: var(--ice);
  text-decoration: none;
}

.page-faq a:hover,
.page-faq a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 0.28em;
  text-decoration-thickness: 1px;
}

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

/* 面包屑 */
.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .crumbs a {
  color: var(--mist);
}

.page-faq .crumbs a:hover {
  color: var(--ice);
}

.page-faq .crumbs__sep {
  color: var(--line);
}

/* 首屏 */
.page-faq .faq-hero {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  padding-top: clamp(1.75rem, 4vw, 2.75rem);
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: var(--faq-gap);
  align-items: center;
}

.page-faq .faq-hero .eyebrow {
  margin: 0;
  color: var(--mist);
}

.page-faq .faq-hero h1 {
  margin: 0.7rem 0 1rem;
  max-width: 15em;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(2rem, 6.2vw, 3.75rem);
  line-height: 1.03;
  letter-spacing: -0.02em;
  background: linear-gradient(102deg, var(--stardust) 38%, var(--nebula) 76%, var(--ice) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-hero .lead {
  max-width: 34em;
  margin: 0;
  color: var(--mist);
  font-size: clamp(0.95rem, 1.6vw, 1.0625rem);
  line-height: 1.95;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.4rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.78rem;
  color: var(--mist);
}

.page-faq .faq-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 0.42rem;
}

.page-faq .faq-hero__meta .mono {
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-faq .faq-hero__visual {
  width: 100%;
  max-width: 330px;
  margin-inline: auto;
  color: var(--galaxy);
}

.page-faq .faq-hero__visual svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-node {
  fill: var(--ice);
}

.page-faq .faq-node--core {
  fill: var(--gold);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-faq .faq-hero__visual {
    margin-inline: 0;
    max-width: 400px;
    padding-left: clamp(1.5rem, 4vw, 3rem);
    border-left: 1px solid var(--line);
  }
}

/* 当季入口 */
.page-faq .faq-season {
  margin-top: clamp(3rem, 7vw, 5rem);
}

.page-faq .faq-season__inner {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}

.page-faq .faq-season__num {
  margin: 0 0 0.6rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-faq .faq-season h2 {
  margin: 0 0 0.9rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2.25rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--stardust);
}

.page-faq .faq-season__text p {
  max-width: 36em;
  margin: 0 0 0.85rem;
  font-size: 0.95rem;
  line-height: 1.95;
  color: var(--mist);
}

.page-faq .faq-season__link {
  margin-top: 1.1rem;
  font-size: 0.88rem;
}

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

.page-faq .faq-season__figure .figure__caption {
  color: var(--mist);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

@media (min-width: 860px) {
  .page-faq .faq-season__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
  }
}

/* 四栏色带 */
.page-faq .faq-bands {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(1.75rem, 4vw, 2.75rem) 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid rgba(240, 192, 112, 0.42);
  background: var(--line);
}

.page-faq .faq-band {
  position: relative;
  display: grid;
  gap: 0.5rem;
  align-content: start;
  padding: 1.35rem 1.1rem 1.5rem;
  background: var(--deep);
  overflow: hidden;
  transition: filter 0.42s var(--ease);
}

.page-faq .faq-band::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  opacity: 0.85;
}

.page-faq .faq-band--one {
  background: linear-gradient(168deg, rgba(23, 26, 58, 0.96) 18%, rgba(108, 75, 232, 0.38));
}

.page-faq .faq-band--one::before {
  background: linear-gradient(90deg, var(--galaxy), var(--nebula));
}

.page-faq .faq-band--two {
  background: linear-gradient(168deg, rgba(23, 26, 58, 0.96) 18%, rgba(232, 107, 176, 0.30));
}

.page-faq .faq-band--two::before {
  background: linear-gradient(90deg, var(--nebula), var(--galaxy));
}

.page-faq .faq-band--three {
  background: linear-gradient(168deg, rgba(23, 26, 58, 0.96) 18%, rgba(122, 31, 61, 0.52));
}

.page-faq .faq-band--three::before {
  background: linear-gradient(90deg, var(--wine), var(--nebula));
}

.page-faq .faq-band--four {
  background: linear-gradient(168deg, rgba(23, 26, 58, 0.96) 18%, rgba(95, 227, 214, 0.22));
}

.page-faq .faq-band--four::before {
  background: linear-gradient(90deg, var(--ice), var(--galaxy));
}

.page-faq .faq-band:hover {
  filter: brightness(1.18);
}

.page-faq .faq-band__cat {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-faq .faq-band__count {
  font-size: 1.55rem;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--stardust);
}

.page-faq .faq-band__name {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--stardust);
}

.page-faq .faq-band__desc {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.75;
  color: var(--mist);
}

@media (min-width: 780px) {
  .page-faq .faq-bands {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-band {
    padding: 1.5rem 1.25rem 1.7rem;
  }
}

/* 主体 + 索引 */
.page-faq .faq-body {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  margin-top: clamp(2.5rem, 6vw, 4rem);
}

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

.page-faq .faq-body__figure {
  margin: 0 0 clamp(1.75rem, 4vw, 2.5rem);
}

.page-faq .faq-body__figure .figure__caption {
  color: var(--mist);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

.page-faq .faq-index {
  order: -1;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
}

.page-faq .faq-index__title {
  margin: 0 0 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.28em;
  color: var(--mist);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 0.45rem;
  margin: 0;
  padding: 0 0 0.35rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 0.42rem;
  padding: 0.4rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  white-space: nowrap;
  font-size: 0.78rem;
  color: var(--mist);
  transition: border-color 0.32s var(--ease), color 0.32s var(--ease);
}

.page-faq .faq-index__link .mono {
  font-size: 0.68rem;
  color: var(--galaxy);
  letter-spacing: 0.06em;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--ice);
  color: var(--stardust);
  text-decoration: none;
}

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 186px;
    align-items: start;
  }

  .page-faq .faq-index {
    order: 0;
    position: sticky;
    top: 110px;
    padding: 0 0 0 1.25rem;
    border-top: none;
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-index__title {
    writing-mode: vertical-rl;
    margin: 0 0 0.9rem;
    letter-spacing: 0.34em;
  }

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

  .page-faq .faq-index__link {
    border: none;
    border-radius: 0;
    padding: 0.6rem 0;
    white-space: normal;
    border-bottom: 1px solid var(--line);
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    color: var(--stardust);
  }

  .page-faq .faq-index__link:hover .mono,
  .page-faq .faq-index__link:focus-visible .mono {
    color: var(--gold);
  }
}

/* 章节通用 */
.page-faq .faq-sec {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding-top: clamp(1.5rem, 3vw, 2.25rem);
  border-top: 1px solid var(--line);
}

.page-faq .faq-sec:first-of-type {
  margin-top: 0;
}

.page-faq .faq-sec__num {
  margin: 0 0 0.55rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-faq .faq-sec h2 {
  margin: 0 0 0.75rem;
  max-width: 22em;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.6vw, 2.15rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--stardust);
}

.page-faq .faq-sec__lead {
  max-width: 36em;
  margin: 0 0 1.4rem;
  font-size: 0.94rem;
  line-height: 1.95;
  color: var(--mist);
}

/* 步骤 */
.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faq-step;
  display: grid;
  gap: 1.15rem;
}

.page-faq .faq-steps > li {
  position: relative;
  counter-increment: faq-step;
  padding-left: 2.5rem;
  padding-bottom: 1.05rem;
  border-bottom: 1px solid rgba(42, 48, 80, 0.68);
}

.page-faq .faq-steps > li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .faq-steps > li::before {
  content: "0" counter(faq-step);
  position: absolute;
  left: 0;
  top: 0.18rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ice);
}

.page-faq .faq-steps h3 {
  margin: 0 0 0.3rem;
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--stardust);
}

.page-faq .faq-steps p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--mist);
}

/* 折叠问答 */
.page-faq .qa-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.page-faq .qa-list > li:last-child .qa {
  border-bottom: 1px solid var(--line);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(0.95rem, 2vw, 1.02rem);
  font-weight: 500;
  line-height: 1.65;
  color: var(--stardust);
  transition: color 0.3s var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--ice);
  transition: color 0.3s var(--ease);
}

.page-faq .qa[open] > .qa__q::after {
  content: "−";
  color: var(--gold);
}

.page-faq .qa__q:hover,
.page-faq .qa__q:focus-visible {
  color: var(--ice);
}

.page-faq .qa__a {
  padding: 0 0 1.15rem;
  max-width: 38em;
  font-size: 0.92rem;
  line-height: 1.95;
  color: var(--mist);
}

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

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

.page-faq .qa__meta {
  display: block;
  margin-top: 0.7rem;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: rgba(154, 154, 184, 0.72);
}

/* 人工支持 */
.page-faq .faq-support {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-support__box {
  padding: 1.35rem 1.15rem 1.45rem;
  background: linear-gradient(168deg, rgba(23, 26, 58, 0.94), rgba(12, 18, 38, 0.96));
}

.page-faq .faq-support__k {
  margin: 0 0 0.6rem;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-faq .faq-support__v {
  display: inline-block;
  margin-bottom: 0.6rem;
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 2.4vw, 1.12rem);
  letter-spacing: 0.02em;
  color: var(--gold);
  word-break: break-all;
}

.page-faq .faq-support__d {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.9;
  color: var(--mist);
}

.page-faq .faq-support__more {
  margin: 1.5rem 0 0;
  font-size: 0.88rem;
}

@media (min-width: 720px) {
  .page-faq .faq-support {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}