.page-faq {
  --faq-line: rgba(62, 74, 79, 0.16);
  --faq-line-strong: rgba(62, 74, 79, 0.3);
  --faq-gap: clamp(1.5rem, 3vw, 2.75rem);
  background: var(--c-paper);
  color: var(--c-brick-deep);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-faq .faq-wrap {
  width: min(100% - 2.25rem, var(--wrap));
  margin-inline: auto;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(1.25rem, 3vw, 2rem) clamp(1.1rem, 4vw, 3.5rem) clamp(2.25rem, 5vw, 3.75rem);
  background: linear-gradient(148deg, var(--c-night) 0%, var(--c-brick) 58%, var(--c-brick-deep) 100%);
  color: var(--c-paper);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    repeating-linear-gradient(90deg, rgba(246, 243, 236, 0.06) 0 2px, transparent 2px 64px),
    repeating-linear-gradient(0deg, rgba(246, 243, 236, 0.05) 0 2px, transparent 2px 34px);
  -webkit-mask-image: linear-gradient(200deg, #000 15%, transparent 82%);
  mask-image: linear-gradient(200deg, #000 15%, transparent 82%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -4rem;
  bottom: -6rem;
  width: clamp(11rem, 26vw, 20rem);
  aspect-ratio: 1;
  z-index: -1;
  background: var(--c-flame);
  opacity: 0.16;
  border-radius: 48% 52% 40% 60% / 55% 45% 55% 45%;
}

.page-faq .faq-hero__inner {
  width: min(100%, var(--wrap));
  margin-inline: auto;
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.page-faq .faq-hero__crumb {
  margin-bottom: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: rgba(246, 243, 236, 0.62);
}

.page-faq .faq-hero__crumb a {
  color: inherit;
  text-decoration: none;
}

.page-faq .faq-hero__crumb a:hover {
  color: var(--c-flame-hi);
}

.page-faq .faq-hero__eyebrow {
  color: var(--c-flame-hi);
  margin: 0 0 0.75rem;
}

.page-faq .faq-hero h1 {
  margin: 0 0 1rem;
  max-width: 18ch;
  font-size: clamp(1.9rem, 5.6vw, 3.3rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 44ch;
  font-size: clamp(1rem, 2.2vw, 1.1rem);
  line-height: 1.75;
  color: rgba(246, 243, 236, 0.86);
}

.page-faq .faq-hero__meta {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding: 1rem 0 0;
  border-top: 3px solid var(--c-flame);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.page-faq .faq-hero__stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px dashed rgba(246, 243, 236, 0.26);
}

.page-faq .faq-hero__stat dt {
  color: rgba(246, 243, 236, 0.7);
  letter-spacing: 0.06em;
}

.page-faq .faq-hero__stat dd {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-flame-hi);
}

/* ---------- 快答带 ---------- */
.page-faq .faq-band {
  background: var(--c-wall);
  padding-block: clamp(2rem, 4.5vw, 3.25rem);
  border-bottom: 1px solid var(--faq-line-strong);
}

.page-faq .faq-band__head {
  max-width: 46rem;
  margin-bottom: 1.5rem;
}

.page-faq .faq-band__head h2 {
  margin: 0.35rem 0 0.6rem;
  font-size: clamp(1.4rem, 4vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--c-brick-deep);
}

.page-faq .faq-band__lead {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--c-brick);
}

.page-faq .faq-figure {
  margin: 0 0 1.5rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--c-brick) 0%, var(--c-night) 100%);
}

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

.page-faq .faq-figure .gw-media__caption {
  padding: 0.65rem 0.9rem;
  font-size: 0.78rem;
  line-height: 1.6;
  color: rgba(246, 243, 236, 0.78);
  background: var(--c-brick-deep);
}

/* ---------- 手风琴通用 ---------- */
.page-faq .faq-list,
.page-faq .faq-quick {
  display: grid;
  gap: 0;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
  counter-increment: faqq;
  transition: background-color var(--dur) var(--ease);
}

.page-faq .faq-quick {
  counter-reset: faqq;
}

.page-faq .faq-list {
  counter-reset: faqq;
}

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr) 1.25rem;
  align-items: start;
  gap: 0.5rem;
  padding: 0.95rem 0.25rem 0.95rem 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(1rem, 2.3vw, 1.1rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-brick-deep);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item summary::before {
  content: counter(faqq, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--c-mute);
  padding-top: 0.4em;
}

.page-faq .faq-item summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--c-brick);
  text-align: center;
  padding-top: 0.15em;
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-item summary:hover {
  color: var(--c-flame);
}

.page-faq .faq-item summary:hover::after {
  color: var(--c-flame);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--c-flame);
  outline-offset: 2px;
}

.page-faq .faq-item[open] {
  border-left: 3px solid var(--c-flame);
  padding-left: 0.85rem;
  background: linear-gradient(90deg, rgba(228, 87, 46, 0.07), rgba(228, 87, 46, 0) 62%);
}

.page-faq .faq-item[open] summary {
  color: var(--c-brick-deep);
}

.page-faq .faq-item[open] summary::before {
  color: var(--c-flame);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
  color: var(--c-flame);
}

.page-faq .faq-answer {
  padding: 0 0.5rem 1.15rem 2.6rem;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--c-brick);
}

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

.page-faq .faq-answer a {
  color: var(--c-flame);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-faq .faq-answer a:hover {
  color: var(--c-flame-hi);
}

/* 快答区条目更紧凑 */
.page-faq .faq-item--quick {
  border-bottom: 1px dashed var(--faq-line-strong);
}

.page-faq .faq-item--quick summary {
  font-size: 0.98rem;
  padding-block: 0.8rem;
}

.page-faq .faq-item--quick .faq-answer {
  padding-bottom: 1rem;
  font-size: 0.9rem;
}

@media (min-width: 760px) {
  .page-faq .faq-quick {
    grid-template-columns: 1fr 1fr;
    column-gap: clamp(1.5rem, 4vw, 3rem);
  }
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding-block: clamp(2rem, 4.5vw, 3.5rem);
}

.page-faq .faq-aside {
  border: 1px solid var(--faq-line-strong);
  border-top: 3px solid var(--c-flame);
  background: var(--c-wall);
  padding: 1rem 1rem 1.15rem;
}

.page-faq .faq-aside__label {
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-brick);
}

.page-faq .faq-index {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: idx;
}

.page-faq .faq-index li {
  counter-increment: idx;
}

.page-faq .faq-index a {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.5rem 0.35rem;
  border-bottom: 1px dashed var(--faq-line-strong);
  font-family: var(--font-mono);
  font-size: 0.79rem;
  line-height: 1.5;
  color: var(--c-brick-deep);
  text-decoration: none;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-index a::before {
  content: counter(idx, decimal-leading-zero);
  font-size: 0.7rem;
  color: var(--c-flame);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  color: var(--c-flame);
  background: rgba(255, 255, 255, 0.6);
}

.page-faq .faq-aside__hint {
  margin: 0.9rem 0 0;
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--c-brick);
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-group {
  padding-block: clamp(1.25rem, 3vw, 2rem);
  border-bottom: 1px solid var(--faq-line-strong);
}

.page-faq .faq-group:first-child {
  padding-top: 0;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  column-gap: 0.75rem;
  row-gap: 0.35rem;
  margin-bottom: 1rem;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4.6vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--c-flame);
  letter-spacing: -0.02em;
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-size: clamp(1.25rem, 3.4vw, 1.7rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--c-brick-deep);
}

.page-faq .faq-group__desc {
  grid-column: 2;
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--c-mute);
  max-width: 42ch;
}

.page-faq .faq-figure--device {
  margin: 0 0 1.25rem;
  max-width: 34rem;
}

/* ---------- 结尾帮助块 ---------- */
.page-faq .faq-help {
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
  padding: clamp(1.4rem, 3.5vw, 2.25rem);
  background: var(--c-brick-deep);
  color: var(--c-paper);
  border-left: 6px solid var(--c-flame);
  border-radius: var(--radius-sm) var(--radius-lg) var(--radius-lg) var(--radius-sm);
}

.page-faq .faq-help__eyebrow {
  color: var(--c-flame-hi);
  margin: 0 0 0.6rem;
}

.page-faq .faq-help h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.3rem, 3.8vw, 1.85rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 800;
}

.page-faq .faq-help__text {
  margin: 0 0 1.25rem;
  max-width: 52ch;
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(246, 243, 236, 0.82);
}

.page-faq .faq-help__text a {
  color: var(--c-flame-hi);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.page-faq .faq-help__actions .gw-mini-btn {
  background: rgba(246, 243, 236, 0.1);
  color: var(--c-paper);
  border-color: rgba(246, 243, 236, 0.35);
}

.page-faq .faq-help__actions .gw-mini-btn:hover {
  background: rgba(255, 122, 61, 0.22);
  border-color: var(--c-flame-hi);
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr) 15rem;
    align-items: end;
  }

  .page-faq .faq-hero__meta {
    padding-top: 1.25rem;
  }

  .page-faq .faq-layout {
    grid-template-columns: 14.5rem minmax(0, 1fr);
    align-items: start;
    column-gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 1.5rem;
  }

  .page-faq .faq-group__head {
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: 1.1rem;
  }

  .page-faq .faq-item summary {
    grid-template-columns: 2.4rem minmax(0, 1fr) 1.4rem;
    padding-block: 1.05rem;
  }

  .page-faq .faq-answer {
    padding-left: 3rem;
    max-width: 62ch;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-layout {
    grid-template-columns: 16rem minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item summary,
  .page-faq .faq-item summary::after,
  .page-faq .faq-index a {
    transition: none;
  }
}