.page-faq {
  --faq-ink: #0E1B2A;
  --faq-muted: #5A6B72;
  --faq-card: #F6F3EC;
  --faq-tint: #EDE7DB;
  --faq-line: rgba(31, 58, 86, 0.16);
  --faq-line-soft: rgba(31, 58, 86, 0.09);
  --faq-shadow: 0 12px 28px rgba(14, 27, 42, 0.09);
  --faq-accent: #C0392B;
  background: var(--faq-tint);
  color: var(--faq-ink);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--zl-header-h) + clamp(28px, 4vw, 52px)) 0 clamp(40px, 6vw, 72px);
  background:
    radial-gradient(120% 100% at 8% 0%, rgba(61, 90, 115, 0.5), transparent 62%),
    linear-gradient(180deg, #16283C 0%, #0E1B2A 100%);
  color: var(--zl-paper);
  overflow: hidden;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(237, 231, 219, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(237, 231, 219, 0.055) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  pointer-events: none;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--zl-red) 0%, var(--zl-amber) 55%, transparent 100%);
}
.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero__title {
  margin: 14px 0 0;
  max-width: 18ch;
}
.page-faq .faq-hero__lead {
  margin-top: 6px;
  max-width: 64ch;
  color: rgba(237, 231, 219, 0.82);
}

.page-faq .faq-topics {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.page-faq .faq-topic a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid rgba(237, 231, 219, 0.18);
  border-radius: var(--zl-radius-sm);
  background: rgba(237, 231, 219, 0.05);
  color: var(--zl-paper);
  text-decoration: none;
  transition: background 200ms var(--zl-ease), border-color 200ms var(--zl-ease), transform 200ms var(--zl-ease);
}
.page-faq .faq-topic a:hover,
.page-faq .faq-topic a:focus-visible {
  background: rgba(224, 166, 75, 0.14);
  border-color: rgba(224, 166, 75, 0.6);
  transform: translateY(-2px);
}
.page-faq .faq-topic__code {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--zl-amber);
}
.page-faq .faq-topic__name {
  font-family: var(--zl-font-display);
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
}
.page-faq .faq-topic__count {
  font-family: var(--zl-font-mono);
  font-size: 11px;
  color: rgba(237, 231, 219, 0.6);
  white-space: nowrap;
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  padding-top: clamp(28px, 4vw, 52px);
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-faq .faq-toc {
  border-top: 2px solid var(--zl-ink);
  padding-top: 12px;
}
.page-faq .faq-toc__head {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--faq-muted);
}
.page-faq .faq-toc__nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
}
.page-faq .faq-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  padding: 8px 12px;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  background: var(--faq-card);
  color: var(--faq-ink);
  font-family: var(--zl-font-display);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 180ms var(--zl-ease), background 180ms var(--zl-ease);
}
.page-faq .faq-toc__link .zl-mono {
  font-size: 11px;
  color: var(--zl-red);
}
.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  border-color: var(--zl-red);
  background: #fff;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--zl-header-h) + 56px);
  padding: clamp(26px, 3.5vw, 40px) 0 clamp(20px, 2.6vw, 30px);
  border-top: 1px solid var(--faq-line);
}
.page-faq .faq-group:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: 4px 1fr;
  gap: 14px;
  margin-bottom: 18px;
}
.page-faq .faq-group__bar {
  border-radius: 3px;
  background: var(--faq-accent);
}
.page-faq .faq-group__code {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--faq-accent);
}
.page-faq .faq-group__title {
  margin: 4px 0 0;
  font-family: var(--zl-font-display);
  font-size: clamp(1.25rem, 3.2vw, 1.75rem);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.01em;
}
.page-faq .faq-group__desc {
  margin: 8px 0 0;
  font-family: var(--zl-font-body);
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-muted);
}

.page-faq .faq-stream > .faq-group:nth-child(1) { --faq-accent: #C0392B; }
.page-faq .faq-stream > .faq-group:nth-child(2) { --faq-accent: #3D5A73; }
.page-faq .faq-stream > .faq-group:nth-child(3) { --faq-accent: #A8731F; }
.page-faq .faq-stream > .faq-group:nth-child(4) { --faq-accent: #1F3A56; }
.page-faq .faq-stream > .faq-group:nth-child(5) { --faq-accent: #C0392B; }

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}
.page-faq .faq-item {
  background: var(--faq-card);
  border: 1px solid var(--faq-line);
  border-radius: var(--zl-radius-sm);
  transition: border-color 200ms var(--zl-ease), box-shadow 200ms var(--zl-ease);
}
.page-faq .faq-item[open] {
  border-color: rgba(224, 166, 75, 0.7);
  box-shadow: var(--faq-shadow);
}
.page-faq .faq-q {
  display: grid;
  grid-template-columns: 20px 1fr auto;
  align-items: start;
  gap: 10px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
}
.page-faq .faq-q::-webkit-details-marker { display: none; }
.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--zl-amber);
  outline-offset: 2px;
  border-radius: var(--zl-radius-sm);
}
.page-faq .faq-q__mark {
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  color: var(--faq-accent);
  flex: 0 0 auto;
}
.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform 180ms var(--zl-ease), opacity 180ms var(--zl-ease);
}
.page-faq .faq-q__mark::before { width: 12px; height: 2px; }
.page-faq .faq-q__mark::after { width: 2px; height: 12px; }
.page-faq .faq-item[open] .faq-q__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}
.page-faq .faq-q__text {
  font-family: var(--zl-font-display);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.005em;
}
.page-faq .faq-q__coord {
  font-size: 11px;
  line-height: 1.6;
  color: var(--faq-muted);
  opacity: 0.42;
  white-space: nowrap;
  transition: opacity 220ms var(--zl-ease), color 220ms var(--zl-ease);
}
.page-faq .faq-item[open] .faq-q__coord {
  opacity: 1;
  color: #A8731F;
}
.page-faq .faq-a {
  padding: 0 16px 18px 46px;
  animation: faq-open 260ms var(--zl-ease) both;
}
.page-faq .faq-a p {
  margin: 0;
  font-family: var(--zl-font-body);
  font-size: 16px;
  line-height: 1.85;
  color: #3C4750;
  max-width: 66ch;
  border-top: 1px dashed var(--faq-line-soft);
  padding-top: 12px;
}
@keyframes faq-open {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 6px 0;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--zl-radius-sm);
  overflow: hidden;
  background: var(--faq-card);
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-figure .zl-media__caption {
  padding: 10px 14px 12px;
  font-family: var(--zl-font-body);
  font-size: 13px;
  line-height: 1.7;
  color: var(--faq-muted);
  background: rgba(31, 58, 86, 0.04);
}

/* ---------- 结尾 ---------- */
.page-faq .faq-help {
  background: linear-gradient(160deg, #16283C 0%, #0E1B2A 70%);
  color: var(--zl-paper);
  padding: clamp(40px, 6vw, 72px) 0 clamp(48px, 7vw, 84px);
}
.page-faq .faq-help__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 40px);
}
.page-faq .faq-help__title {
  margin: 6px 0 0;
  font-family: var(--zl-font-display);
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.015em;
}
.page-faq .faq-help__text {
  margin: 14px 0 22px;
  max-width: 52ch;
  font-family: var(--zl-font-body);
  font-size: 16px;
  line-height: 1.85;
  color: rgba(237, 231, 219, 0.78);
}
.page-faq .faq-help__links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.page-faq .faq-help__card {
  display: grid;
  gap: 6px;
  text-decoration: none;
  color: var(--zl-paper);
  background: rgba(237, 231, 219, 0.06);
  border: 1px solid rgba(237, 231, 219, 0.16);
  border-radius: var(--zl-radius-sm);
  padding: 16px;
  transition: transform 200ms var(--zl-ease), background 200ms var(--zl-ease), border-color 200ms var(--zl-ease);
}
.page-faq .faq-help__card:hover,
.page-faq .faq-help__card:focus-visible {
  transform: translateY(-3px);
  background: rgba(224, 166, 75, 0.14);
  border-color: rgba(224, 166, 75, 0.55);
}
.page-faq .faq-help__card .zl-card__num {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--zl-amber);
}
.page-faq .faq-help__card .zl-card__title {
  font-family: var(--zl-font-display);
  font-size: 17px;
  font-weight: 700;
}
.page-faq .faq-help__card .zl-card__desc {
  font-family: var(--zl-font-body);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(237, 231, 219, 0.72);
}
.page-faq .faq-help__card .zl-card__link {
  margin-top: 4px;
  font-family: var(--zl-font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--zl-paper);
}
.page-faq .faq-help__meta {
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid rgba(237, 231, 219, 0.14);
  font-family: var(--zl-font-body);
  font-size: 13px;
  line-height: 1.9;
  color: rgba(237, 231, 219, 0.62);
}
.page-faq .faq-help__meta a {
  color: rgba(237, 231, 219, 0.88);
  text-underline-offset: 3px;
}

/* ---------- 窄屏微调 ---------- */
@media (max-width: 479px) {
  .page-faq .faq-q {
    grid-template-columns: 18px 1fr;
    gap: 8px;
    padding: 14px;
  }
  .page-faq .faq-q__coord {
    grid-column: 2;
    justify-self: start;
    margin-top: 2px;
    font-size: 10px;
  }
  .page-faq .faq-a {
    padding: 0 14px 16px 40px;
  }
  .page-faq .faq-a p {
    font-size: 15px;
  }
  .page-faq .faq-topics {
    gap: 8px;
  }
}

/* ---------- 中屏 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-topics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .faq-help__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .faq-help__card:first-child {
    grid-column: 1 / -1;
  }
  .page-faq .faq-list {
    gap: 12px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__lead {
    font-size: 18px;
  }
  .page-faq .faq-topics {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
  }
  .page-faq .faq-topic a {
    grid-template-columns: 1fr;
    align-content: start;
    gap: 6px;
    padding: 16px 14px 18px;
    height: 100%;
  }
  .page-faq .faq-topic__count {
    justify-self: start;
  }

  .page-faq .faq-shell {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
  }
  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--zl-header-h) + 24px);
    align-self: start;
    border-top-width: 3px;
    max-height: calc(100vh - var(--zl-header-h) - 48px);
    overflow: auto;
  }
  .page-faq .faq-toc__nav {
    display: grid;
    gap: 6px;
    overflow: visible;
  }
  .page-faq .faq-toc__link {
    border: 0;
    border-left: 2px solid var(--faq-line);
    border-radius: 0;
    background: transparent;
    padding: 9px 12px;
    font-size: 14px;
    justify-content: flex-start;
  }
  .page-faq .faq-toc__link:hover,
  .page-faq .faq-toc__link:focus-visible {
    border-left-color: var(--zl-red);
    background: rgba(192, 57, 43, 0.06);
  }

  .page-faq .faq-figure--narrow {
    max-width: 620px;
  }
  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
    gap: clamp(32px, 4vw, 64px);
  }
  .page-faq .faq-help__links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .faq-help__card:first-child {
    grid-column: auto;
  }
  .page-faq .faq-help__meta {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-q {
    padding: 18px 22px;
  }
  .page-faq .faq-a {
    padding: 0 22px 20px 52px;
  }
  .page-faq .faq-shell {
    grid-template-columns: 240px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-a {
    animation: none;
  }
  .page-faq .faq-topic a,
  .page-faq .faq-help__card,
  .page-faq .faq-q__mark::before,
  .page-faq .faq-q__mark::after,
  .page-faq .faq-q__coord {
    transition: none;
  }
  .page-faq .faq-topic a:hover,
  .page-faq .faq-help__card:hover {
    transform: none;
  }
}
</main>