.page-faq {
  background: var(--paper-100);
  color: var(--graphite-900);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--ink-900);
  color: var(--paper-100);
  padding: clamp(18px, 3vw, 28px) 0 clamp(56px, 8vw, 96px);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 34px));
}

.page-faq .faq-hero__crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-family: var(--font-body);
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-faq .faq-hero__crumb a {
  color: rgba(201, 195, 182, 0.68);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .faq-hero__crumb a:hover,
.page-faq .faq-hero__crumb a:focus-visible {
  color: var(--orange-500);
  border-bottom-color: var(--orange-500);
}

.page-faq .faq-hero__crumb .breadcrumb__sep {
  color: rgba(201, 195, 182, 0.38);
}

.page-faq .faq-hero__crumb [aria-current="page"] {
  color: var(--paper-100);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}

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

.page-faq .eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal-400);
  margin: 0 0 14px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(32px, 6.4vw, 60px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--paper-050);
  max-width: 15em;
}

.page-faq .faq-hero__lead {
  margin: 0 0 24px;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(232, 228, 219, 0.76);
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__quick a {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border: 1px solid var(--line-darker);
  border-radius: 999px;
  font-size: 13px;
  color: var(--paper-100);
  text-decoration: none;
  transition: background-color 0.2s var(--ease-out), border-color 0.2s var(--ease-out), color 0.2s var(--ease-out);
}

.page-faq .faq-hero__quick a:hover,
.page-faq .faq-hero__quick a:focus-visible {
  background: var(--orange-500);
  border-color: var(--orange-500);
  color: var(--ink-900);
}

.page-faq .faq-hero__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--line-dark);
  overflow: hidden;
  aspect-ratio: 2 / 1;
  box-shadow: 0 18px 40px -28px var(--shadow-green);
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(14, 31, 26, 0) 40%, rgba(14, 31, 26, 0.55) 100%);
  pointer-events: none;
}

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

/* ---------- 主体：图例 + 手风琴 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(24px, 3.5vw, 40px);
  padding-block: clamp(30px, 5vw, 60px) clamp(48px, 7vw, 88px);
  align-items: start;
}

.page-faq .faq-legend {
  display: none;
}

.page-faq .faq-legend__title {
  margin: 0 0 10px;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel-600);
}

.page-faq .faq-legend__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
  border-top: 1px solid var(--line-paper);
  padding-top: 6px;
}

.page-faq .faq-legend__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-left: 2px solid transparent;
  font-size: 14px;
  color: var(--steel-600);
  text-decoration: none;
  transition: color 0.18s var(--ease-out), border-color 0.18s var(--ease-out), background-color 0.18s var(--ease-out);
}

.page-faq .faq-legend__link svg {
  flex: none;
  opacity: 0.75;
}

.page-faq .faq-legend__link:hover,
.page-faq .faq-legend__link:focus-visible {
  border-left-color: var(--orange-500);
  background: var(--paper-050);
  color: var(--graphite-900);
}

.page-faq .faq-legend__link:hover svg,
.page-faq .faq-legend__link:focus-visible svg {
  opacity: 1;
  color: var(--orange-500);
}

.page-faq .faq-legend__note {
  margin: 18px 0 0;
  padding-left: 12px;
  font-size: 14px;
  color: var(--orange-500);
}

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

/* ---------- 分组 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: clamp(28px, 4vw, 46px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--line-paper);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--orange-500);
  letter-spacing: 0.04em;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.2vw, 27px);
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--graphite-900);
}

.page-faq .faq-group__meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel-600);
  white-space: nowrap;
}

.page-faq .faq-group__split {
  display: grid;
  gap: 18px;
}

.page-faq .faq-group__media {
  margin: 14px 0 0;
  border: 1px solid var(--line-paper);
  background: var(--paper-050);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  max-width: 260px;
}

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

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  margin-top: 14px;
  display: grid;
  gap: 8px;
}

.page-faq .faq-item {
  background: var(--paper-050);
  border: 1px solid var(--line-paper);
  border-left: 2px solid var(--concrete-400);
  border-radius: 2px;
  transition: border-color 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

.page-faq .faq-item[open] {
  border-left-color: var(--orange-500);
  box-shadow: 0 10px 22px -18px var(--shadow-green);
}

.page-faq .faq-item__q {
  position: relative;
  display: block;
  padding: 14px 42px 14px 14px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--graphite-900);
  cursor: pointer;
  list-style: none;
  transition: color 0.18s var(--ease-out);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 11px;
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 400;
  line-height: 1;
  color: var(--orange-500);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "\2013";
}

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--orange-500);
}

.page-faq .faq-item__a {
  padding: 12px 16px 16px;
  background: var(--paper-100);
  border-top: 1px dashed var(--line-paper);
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--steel-600);
}

.page-faq .faq-item__a a {
  color: var(--orange-500);
  text-decoration: none;
  border-bottom: 1px solid var(--orange-200);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  border-bottom-color: var(--orange-500);
}

/* ---------- 求助面板 ---------- */
.page-faq .faq-help {
  margin-top: clamp(40px, 6vw, 72px);
  background: var(--ink-900);
  color: var(--paper-100);
  border-radius: 2px;
  padding: clamp(24px, 4vw, 44px);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 120px;
  height: 3px;
  background: var(--orange-500);
}

.page-faq .faq-help__eyebrow {
  color: var(--signal-400);
  margin-bottom: 12px;
}

.page-faq .faq-help__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--paper-050);
}

.page-faq .faq-help__lead {
  margin: 0 0 22px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(232, 228, 219, 0.76);
}

.page-faq .faq-help__list {
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-dark);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-help__row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  padding: 11px 0;
  background: var(--ink-900);
}

.page-faq .faq-help__row dt {
  flex: none;
  width: 84px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(201, 195, 182, 0.72);
  padding-top: 2px;
}

.page-faq .faq-help__row dd {
  margin: 0;
  font-size: 15px;
  color: var(--paper-050);
  word-break: break-word;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.page-faq .faq-help__secondary {
  font-size: 14px;
  color: var(--signal-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 242, 78, 0.4);
}

.page-faq .faq-help__secondary:hover,
.page-faq .faq-help__secondary:focus-visible {
  border-bottom-color: var(--signal-400);
}

.page-faq .faq-help__note {
  margin: 20px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(201, 195, 182, 0.66);
}

.page-faq .faq-help__note a {
  color: rgba(232, 228, 219, 0.9);
  text-decoration: none;
  border-bottom: 1px solid var(--line-darker);
}

.page-faq .faq-help__note a:hover,
.page-faq .faq-help__note a:focus-visible {
  color: var(--orange-500);
  border-bottom-color: var(--orange-500);
}

/* ---------- 触屏与窄屏 ---------- */
@media (max-width: 599px) {
  .page-faq .faq-hero__figure {
    aspect-ratio: 16 / 9;
  }

  .page-faq .faq-group__meta {
    display: none;
  }

  .page-faq .faq-item__q {
    font-size: 15px;
    padding: 13px 38px 13px 13px;
  }

  .page-faq .faq-help__row dt {
    width: 100%;
  }
}

/* ---------- 桌面：左图例 + 右手风琴 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: 1.05fr 0.95fr;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 228px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 60px);
  }

  .page-faq .faq-legend {
    display: block;
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-group__split {
    grid-template-columns: minmax(0, 1fr) 240px;
    align-items: start;
    gap: 22px;
  }

  .page-faq .faq-group__media {
    margin-top: 14px;
    max-width: none;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-body {
    grid-template-columns: 248px minmax(0, 1fr);
  }

  .page-faq .faq-group__split {
    grid-template-columns: minmax(0, 1fr) 280px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__quick a,
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-legend__link {
    transition: none;
  }
}