.page-faq {
  --faq-line: rgba(27, 108, 140, 0.16);
  --faq-tint: rgba(214, 234, 242, 0.52);
  --faq-tint-strong: rgba(214, 234, 242, 0.92);
  background: var(--snow);
  color: var(--text);
}

.page-faq .breadcrumb {
  padding: clamp(14px, 2.4vw, 22px) 0 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4.6vw, 54px) 0 clamp(34px, 5.6vw, 70px);
  background:
    radial-gradient(120% 150% at 100% 0%, rgba(214, 234, 242, 0.95) 0%, rgba(214, 234, 242, 0) 62%),
    var(--snow);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -56px;
  right: -70px;
  width: min(48vw, 420px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: repeating-radial-gradient(
    circle at 50% 50%,
    rgba(27, 108, 140, 0.11) 0 1px,
    transparent 1px 16px
  );
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--lake-600);
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(30px, 6vw, 58px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 17em;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.9vw, 18px);
  line-height: 1.85;
  color: var(--slate-500);
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: clamp(24px, 3.6vw, 38px) 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--faq-line);
  display: flex;
  flex-wrap: wrap;
  gap: 14px clamp(24px, 5vw, 66px);
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 600;
  line-height: 1;
  color: var(--lake-600);
}

.page-faq .faq-stat__num em {
  font-style: normal;
  margin-left: 2px;
  font-size: 14px;
  color: var(--sun-500);
}

.page-faq .faq-stat__label {
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--muted);
}

/* ---------- 栅格 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 56px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* ---------- 粘性分类索引 ---------- */
.page-faq .faq-index {
  border-top: 2px solid var(--lake-600);
  padding-top: 16px;
}

.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 8px 11px 0;
  border-bottom: 1px solid var(--faq-line);
  color: var(--lake-800);
  text-decoration: none;
  transition:
    color var(--dur) var(--ease),
    background-color var(--dur) var(--ease),
    padding-left var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--sun-500);
  background: var(--lake-100);
  padding-left: 8px;
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--sun-500);
  outline-offset: -2px;
}

.page-faq .faq-index__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--sun-500);
}

.page-faq .faq-index__label {
  font-size: 15px;
  line-height: 1.5;
}

.page-faq .faq-index__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

/* ---------- 问答分区 ---------- */
.page-faq .faq-section {
  scroll-margin-top: 20px;
  padding-top: clamp(26px, 4vw, 42px);
}

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

.page-faq .faq-section__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 8px;
}

.page-faq .faq-section__num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.8vw, 38px);
  font-weight: 600;
  line-height: 1;
  color: var(--sun-500);
}

.page-faq .faq-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 500;
  line-height: 1.35;
  color: var(--lake-800);
}

.page-faq .faq-section__desc {
  margin: 10px 0 22px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(20px, 3vw, 30px);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-m);
  background: var(--lake-100);
}

.page-faq .faq-figure figcaption {
  margin-top: 9px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--faq-line);
  background: transparent;
  transition: background-color var(--dur) var(--ease);
}

.page-faq .faq-item:nth-of-type(even) {
  background: var(--faq-tint);
}

.page-faq .faq-item:last-of-type {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-item[open] {
  background: var(--faq-tint-strong);
}

.page-faq .faq-q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 44px 16px 14px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.9vw, 17px);
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-q::after {
  content: "+";
  position: absolute;
  top: 14px;
  right: 14px;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--lake-600);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-q::after {
  content: "−";
  color: var(--sun-500);
}

.page-faq .faq-q:hover {
  color: var(--lake-800);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--sun-500);
  outline-offset: -2px;
}

.page-faq .faq-q__num {
  flex: 0 0 auto;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--sun-500);
}

.page-faq .faq-a {
  padding: 0 20px 20px 42px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--slate-500);
}

.page-faq .faq-a p {
  margin: 0 0 12px;
}

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

.page-faq .faq-a a {
  color: var(--lake-600);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-a a:hover {
  color: var(--sun-500);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  display: grid;
  gap: 9px;
}

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

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
}

.page-faq .faq-step {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--sun-500);
  letter-spacing: 0.04em;
}

/* ---------- 人工帮助 ---------- */
.page-faq .help-panel {
  position: relative;
  overflow: hidden;
  margin-top: 6px;
  padding: clamp(22px, 3.6vw, 40px);
  border-radius: var(--radius-m);
  background: var(--lake-800);
  color: rgba(247, 249, 250, 0.92);
}

.page-faq .help-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    115deg,
    transparent 0 26px,
    rgba(247, 249, 250, 0.055) 26px 27px
  );
  pointer-events: none;
}

.page-faq .help-panel > * {
  position: relative;
  z-index: 1;
}

.page-faq .help-panel__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 500;
  color: #fff;
}

.page-faq .help-panel__text {
  margin: 0 0 22px;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(247, 249, 250, 0.82);
}

.page-faq .help-contact {
  margin: 0 0 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px 24px;
}

.page-faq .help-contact__item {
  padding-left: 12px;
  border-left: 2px solid var(--sun-500);
}

.page-faq .help-contact__item dt {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(247, 249, 250, 0.62);
}

.page-faq .help-contact__item dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.6;
  color: #fff;
  word-break: break-word;
}

.page-faq .help-contact__item--wide dd {
  font-family: var(--font-body);
}

.page-faq .help-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .help-panel__note {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(247, 249, 250, 0.7);
}

.page-faq .help-panel__note a {
  color: var(--sun-200);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 其余分类 ---------- */
.page-faq .faq-more {
  margin-top: clamp(34px, 5vw, 58px);
  padding-top: clamp(22px, 3vw, 32px);
  border-top: 2px solid var(--lake-600);
}

.page-faq .faq-more__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 500;
  color: var(--lake-800);
}

.page-faq .faq-more__desc {
  margin: 0 0 8px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-faq .faq-more__row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 2px 10px;
  padding: 14px 4px;
  border-bottom: 1px solid var(--faq-line);
  transition: background-color var(--dur) var(--ease);
}

.page-faq .faq-more__row:hover {
  background: var(--faq-tint);
}

.page-faq .faq-more__num {
  grid-row: span 2;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--sun-500);
}

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

.page-faq .faq-more__name {
  margin: 0 0 4px;
  font-size: 15.5px;
  font-weight: 500;
  color: var(--lake-800);
}

.page-faq .faq-more__meta {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
}

.page-faq .faq-more__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .help-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .help-contact__item--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(200px, 3fr) minmax(0, 9fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 20px;
  }

  .page-faq .faq-a {
    padding-right: 40px;
    padding-left: 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item,
  .page-faq .faq-q,
  .page-faq .faq-q::after,
  .page-faq .faq-more__row {
    transition: none;
  }
}
<<<END>>>