.page-faq {
  --faq-corner: 20px;
  --faq-edge: rgba(23, 224, 200, 0.30);
  --faq-edge-hot: rgba(255, 106, 43, 0.34);
  --faq-line: rgba(201, 207, 214, 0.14);
}

/* ---------- 面包屑与首屏 ---------- */
.page-faq .crumbs {
  margin: 18px 0 0;
}

.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 44px;
  border-bottom: 1px solid var(--faq-line);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 38%;
  right: -12%;
  bottom: 34%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  transform: rotate(-5deg);
  opacity: 0.45;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    0deg,
    rgba(232, 234, 236, 0.035) 0 1px,
    transparent 1px 28px
  );
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 34px;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(32px, 7.4vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.012em;
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-hero__text {
  margin: 18px 0 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-72);
}

.page-faq .faq-hero__side {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-faq .faq-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
  clip-path: polygon(
    0 0,
    calc(100% - var(--faq-corner)) 0,
    100% var(--faq-corner),
    100% 100%,
    0 100%
  );
}

.page-faq .faq-stats li {
  background: var(--panel);
  padding: 14px 15px 15px;
  min-width: 0;
}

.page-faq .faq-stats__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--cyan);
  word-break: break-word;
}

.page-faq .faq-stats__num--hot {
  color: var(--orange);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-pulse {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
  animation: faq-pulse 2s var(--ease-out) infinite;
}

@keyframes faq-pulse {
  0%, 100% { opacity: 0.3; transform: scale(0.82); }
  50% { opacity: 1; transform: scale(1); }
}

.page-faq .faq-stats__unit {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--ink-50);
}

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

/* ---------- 横幅图 ---------- */
.page-faq .faq-banner {
  margin: 30px 0 0;
  border: 1px solid var(--faq-line);
  background: var(--plate);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 26px;
  padding: 44px 0 12px;
}

.page-faq .faq-index {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

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

.page-faq .faq-index a {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid var(--faq-line);
  background: rgba(18, 42, 66, 0.55);
  color: var(--paper);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  transition: border-color 0.2s var(--ease-out), color 0.2s var(--ease-out),
    background-color 0.2s var(--ease-out);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  border-color: var(--cyan);
  background: var(--cyan-a12);
  color: var(--cyan);
}

.page-faq .faq-index__n {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: var(--cyan-deep);
}

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

/* ---------- 问答分组 ---------- */
.page-faq .faq-groups {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--bar-h) + 18px);
  padding-bottom: 36px;
}

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

.page-faq .faq-group__head {
  display: grid;
  gap: 6px;
  padding: 26px 0 18px;
}

.page-faq .faq-group__n {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-size: clamp(22px, 4.6vw, 32px);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-group__head h2::after {
  content: "";
  display: block;
  width: 46px;
  height: 3px;
  margin-top: 12px;
  background: var(--cyan);
  transform: skewX(-26deg);
}

.page-faq .faq-group__note {
  margin: 0;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-50);
}

.page-faq .faq-group--hot .faq-group__n {
  color: var(--orange);
}

.page-faq .faq-group--hot .faq-group__head h2::after {
  background: var(--orange);
}

.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  counter-reset: qa;
  min-width: 0;
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  counter-increment: qa;
  background: var(--panel);
  border: 1px solid var(--faq-line);
  clip-path: polygon(
    0 0,
    calc(100% - 16px) 0,
    100% 16px,
    100% 100%,
    0 100%
  );
  transition: border-color 0.2s var(--ease-out), background-color 0.2s var(--ease-out);
}

.page-faq .qa:hover {
  border-color: var(--hair-strong);
}

.page-faq .qa[open] {
  border-color: var(--cyan);
  background: linear-gradient(180deg, var(--cyan-a12), var(--panel) 46%);
}

.page-faq .faq-group--hot .qa[open] {
  border-color: var(--orange);
  background: linear-gradient(180deg, var(--orange-a14), var(--panel) 46%);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  margin: 0;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--paper);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
}

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

.page-faq .qa__q::before {
  content: counter(qa, decimal-leading-zero);
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  font-weight: 400;
  color: var(--cyan);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .qa__label {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .qa__chev {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 0.22s var(--ease-out);
}

.page-faq .qa[open] .qa__chev {
  transform: rotate(225deg);
}

.page-faq .faq-group--hot .qa__q::before {
  color: var(--orange);
}

.page-faq .faq-group--hot .qa__chev {
  border-color: var(--orange);
}

.page-faq .qa__a {
  padding: 0 16px 18px 44px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-72);
}

.page-faq .qa__a p {
  margin: 0 0 10px;
}

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

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

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

.page-faq .qa__verdict {
  padding-left: 12px;
  border-left: 2px solid var(--cyan);
  color: var(--paper);
  font-weight: 600;
}

.page-faq .faq-group--hot .qa__verdict {
  border-left-color: var(--orange);
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-faq .faq-num--hot {
  color: var(--orange);
}

/* ---------- 纠错组配图 ---------- */
.page-faq .faq-group__body {
  display: grid;
  gap: 22px;
  min-width: 0;
}

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--faq-edge-hot);
  background: var(--plate);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 4;
  object-fit: cover;
}

/* ---------- 结尾面板 ---------- */
.page-faq .faq-outro {
  padding: 8px 0 56px;
}

.page-faq .faq-outro__panel {
  display: grid;
  gap: 24px;
  padding: 26px 20px 28px;
  background: var(--panel);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--orange);
  clip-path: polygon(
    0 0,
    calc(100% - var(--faq-corner)) 0,
    100% var(--faq-corner),
    100% 100%,
    0 100%
  );
}

.page-faq .faq-outro__text h2 {
  margin: 8px 0 0;
  font-size: clamp(21px, 4.4vw, 30px);
  line-height: 1.22;
  color: var(--paper);
}

.page-faq .faq-outro__text p {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-72);
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero {
    padding: 34px 0 56px;
  }

  .page-faq .faq-group__head {
    grid-template-columns: 76px minmax(0, 1fr);
    column-gap: 22px;
  }

  .page-faq .faq-group__n {
    grid-column: 1;
    grid-row: 1 / span 2;
    padding-top: 10px;
  }

  .page-faq .faq-group__head h2 {
    grid-column: 2;
    grid-row: 1;
  }

  .page-faq .faq-group__note {
    grid-column: 2;
    grid-row: 2;
  }

  .page-faq .qa__q {
    padding: 17px 20px;
    font-size: 16px;
  }

  .page-faq .qa__a {
    padding: 0 20px 20px 50px;
  }

  .page-faq .faq-outro__panel {
    padding: 30px 30px 32px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(320px, 1fr);
    align-items: end;
    gap: 56px;
  }

  .page-faq .faq-banner {
    margin-left: 6%;
  }

  .page-faq .faq-body {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 56px;
    padding-top: 56px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
    padding-bottom: 0;
    border-bottom: 0;
    border-left: 1px solid var(--faq-line);
    padding-left: 0;
  }

  .page-faq .faq-index__title {
    padding-left: 16px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-faq .faq-index a {
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    padding: 9px 12px 9px 14px;
  }

  .page-faq .faq-index a:hover,
  .page-faq .faq-index a:focus-visible {
    border-left-color: var(--cyan);
    background: var(--cyan-a12);
  }

  .page-faq .faq-group__body {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 30px;
    align-items: start;
  }

  .page-faq .faq-outro__panel {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 40px;
    padding: 34px 38px 36px;
  }

  .page-faq .faq-outro__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-group__body {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 38px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-pulse {
    animation: none;
    opacity: 0.8;
  }

  .page-faq .qa__chev,
  .page-faq .qa,
  .page-faq .faq-index a {
    transition: none;
  }
}