.page-faq {
  --faq-c1: #3BE8E0;
  --faq-c2: #7BD88F;
  --faq-c3: #FFD166;
  --faq-c4: #FF8A5B;
  --faq-c5: #B47BFF;
  --faq-c6: #FF3D9A;
  display: block;
  padding-bottom: 64px;
}

.page-faq .hue-1 { --faq-hue: var(--faq-c1); }
.page-faq .hue-2 { --faq-hue: var(--faq-c2); }
.page-faq .hue-3 { --faq-hue: var(--faq-c3); }
.page-faq .hue-4 { --faq-hue: var(--faq-c4); }
.page-faq .hue-5 { --faq-hue: var(--faq-c5); }
.page-faq .hue-6 { --faq-hue: var(--faq-c6); }

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 22px 0 38px;
  border-bottom: 1px solid rgba(140, 151, 184, 0.2);
  background-image:
    linear-gradient(158deg, rgba(20, 27, 54, 0.92) 0%, rgba(11, 16, 36, 0.5) 58%, rgba(5, 7, 15, 0.9) 100%),
    repeating-linear-gradient(0deg, rgba(237, 241, 250, 0.03) 0 1px, transparent 1px 5px);
}

.page-faq .faq-hero-inner {
  display: grid;
  gap: 26px;
  align-items: start;
}

.page-faq .faq-hero-main .label {
  display: inline-block;
  margin: 0 0 14px;
}

.page-faq .faq-hero-main h1 {
  margin: 0 0 16px;
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(30px, 7.2vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--cloud);
  max-width: 14em;
}

.page-faq .faq-lede {
  margin: 0 0 22px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(237, 241, 250, 0.8);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 首屏索引卡 ---------- */
.page-faq .faq-index {
  padding: 18px 16px 14px;
  background: var(--ink-700);
  border-top: 2px solid var(--cyan);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.page-faq .faq-index-title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
}

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

.page-faq .faq-index-link {
  display: grid;
  grid-template-columns: 6px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 10px 4px;
  border-bottom: 1px solid rgba(140, 151, 184, 0.14);
  color: var(--cloud);
  text-decoration: none;
  font-size: 15px;
  transition: color 180ms ease-out;
}

.page-faq .faq-index-link::before {
  content: "";
  align-self: center;
  display: block;
  width: 6px;
  height: 16px;
  background: var(--faq-hue, var(--cyan));
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--faq-hue, var(--cyan));
}

.page-faq .faq-index-count {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 26px;
  padding-top: 30px;
}

.page-faq .faq-toc {
  align-self: start;
}

.page-faq .faq-toc-title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-toc-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-toc-link {
  display: inline-block;
  flex: none;
  padding: 7px 12px;
  border: 1px solid rgba(140, 151, 184, 0.28);
  color: rgba(237, 241, 250, 0.82);
  text-decoration: none;
  font-size: 13.5px;
  white-space: nowrap;
  transition: border-color 180ms ease-out, color 180ms ease-out;
}

.page-faq .faq-toc-link:hover,
.page-faq .faq-toc-link:focus-visible {
  border-color: var(--faq-hue, var(--cyan));
  color: var(--faq-hue, var(--cyan));
}

/* ---------- 分类区块 ---------- */
.page-faq .faq-cat {
  position: relative;
  padding-top: 20px;
  margin-bottom: 44px;
  scroll-margin-top: calc(var(--header-h) + 22px);
}

.page-faq .faq-cat::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 64px;
  height: 3px;
  background: var(--faq-hue, var(--cyan));
}

.page-faq .faq-cat-kicker {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-cat-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 10px;
}

.page-faq .faq-cat-title {
  margin: 0;
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(21px, 4.4vw, 30px);
  line-height: 1.24;
  color: var(--cloud);
}

.page-faq .faq-cat-count {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--faq-hue, var(--cyan));
}

.page-faq .faq-cat-lede {
  margin: 0 0 22px;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: rgba(237, 241, 250, 0.72);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 24px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(20, 27, 54, 0.92), rgba(5, 7, 15, 0.94));
  border-top: 1px solid rgba(59, 232, 224, 0.3);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 14px 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--slate);
}

/* ---------- 问答流 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
}

.page-faq .faq-item {
  position: relative;
  padding-left: 20px;
  border-bottom: 1px solid rgba(140, 151, 184, 0.14);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: rgba(140, 151, 184, 0.26);
  transition: background 180ms ease-out;
}

.page-faq .faq-item[open]::before {
  background: var(--faq-hue, var(--cyan));
}

.page-faq .faq-q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 34px 15px 0;
  cursor: pointer;
  list-style: none;
  color: var(--cloud);
  transition: color 180ms ease-out;
}

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

.page-faq .faq-item[open] .faq-q {
  color: var(--faq-hue, var(--cyan));
}

.page-faq .faq-q-mark {
  flex: none;
  padding-top: 4px;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-faq .faq-q-text {
  margin: 0;
  font-family: var(--font-cn);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.62;
}

.page-faq .faq-q-icon {
  position: absolute;
  right: 6px;
  top: 21px;
  width: 14px;
  height: 14px;
}

.page-faq .faq-q-icon::before,
.page-faq .faq-q-icon::after {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
  background: var(--slate);
  transition: transform 180ms ease-out, background 180ms ease-out;
}

.page-faq .faq-q-icon::after {
  transform: rotate(90deg);
}

.page-faq .faq-item[open] .faq-q-icon::after {
  transform: rotate(0deg);
}

.page-faq .faq-item[open] .faq-q-icon::before,
.page-faq .faq-item[open] .faq-q-icon::after {
  background: var(--faq-hue, var(--cyan));
}

.page-faq .faq-a {
  padding: 0 20px 18px 0;
  animation: faq-fade-in 220ms ease-out;
}

.page-faq .faq-a p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: rgba(237, 241, 250, 0.78);
}

.page-faq .faq-a a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-a .num {
  font-family: var(--font-mono);
  color: var(--amber);
  letter-spacing: 0.02em;
}

@keyframes faq-fade-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 分区区块图文并排 ---------- */
.page-faq .faq-zone-grid {
  display: grid;
  gap: 22px;
}

/* ---------- 求助面板 ---------- */
.page-faq .faq-help-panel {
  padding: 22px 18px;
  background: linear-gradient(150deg, rgba(255, 61, 154, 0.12), rgba(20, 27, 54, 0.9) 55%, rgba(5, 7, 15, 0.9));
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}

.page-faq .faq-help-list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-faq .faq-help-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(237, 241, 250, 0.82);
}

.page-faq .faq-help-num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
  padding-top: 3px;
}

.page-faq .faq-help-note {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .faq-help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 中等屏幕 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero {
    padding: 32px 0 52px;
  }

  .page-faq .faq-cat {
    margin-bottom: 58px;
  }

  .page-faq .faq-help-panel {
    padding: 28px 26px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.95fr);
    gap: 40px;
  }

  .page-faq .faq-body {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: 44px;
    padding-top: 44px;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }

  .page-faq .faq-toc-list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-toc-link {
    display: block;
    padding: 8px 10px 8px 12px;
    border: 0;
    border-left: 3px solid rgba(140, 151, 184, 0.28);
    font-size: 14px;
    white-space: normal;
  }

  .page-faq .faq-toc-link:hover,
  .page-faq .faq-toc-link:focus-visible {
    border-left-color: var(--faq-hue, var(--cyan));
  }

  .page-faq .faq-zone-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(200px, 0.6fr);
    gap: 30px;
    align-items: start;
  }

  .page-faq .faq-zone-grid .faq-figure {
    margin-top: 4px;
  }

  .page-faq .faq-figure--square figcaption {
    font-size: 12px;
  }

  .page-faq .faq-q-text {
    font-size: 17.5px;
  }

  .page-faq .faq-a {
    padding-right: 64px;
  }
}

@media (min-width: 1240px) {
  .page-faq .faq-body {
    grid-template-columns: 228px minmax(0, 1fr);
    gap: 56px;
  }

  .page-faq .faq-cat-lede {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-a {
    animation: none;
  }

  .page-faq .faq-item::before,
  .page-faq .faq-q,
  .page-faq .faq-q-icon::before,
  .page-faq .faq-q-icon::after,
  .page-faq .faq-toc-link,
  .page-faq .faq-index-link {
    transition: none;
  }
}