.page-faq {
  --faq-side-w: 218px;
  --faq-radius: var(--radius);
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  padding-top: 18px;
  padding-bottom: 4px;
  font-size: 12px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 28px;
  padding-top: 22px;
  padding-bottom: 30px;
}

.page-faq .faq-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-faq .faq-hero__eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border: 1px solid var(--green);
  transform: rotate(45deg);
  flex: none;
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(27px, 5.4vw, 50px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--ice);
  max-width: 20ch;
}

.page-faq .faq-hero .lead {
  margin: 0;
  max-width: 62ch;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.78;
}

.page-faq .faq-hero__facts {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-fact {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: var(--panel);
}

.page-faq .faq-fact__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 30px;
  line-height: 1;
  color: var(--green);
}

.page-faq .faq-fact__k {
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 30px;
  padding-top: 6px;
  padding-bottom: 76px;
}

.page-faq .faq-flow {
  min-width: 0;
  display: grid;
  gap: 6px;
}

/* ---------- 左侧分类索引 ---------- */
.page-faq .faq-side {
  min-width: 0;
}

.page-faq .faq-side__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-faq .faq-side__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-side__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-side__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  color: var(--ice);
  font-size: 13.5px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.page-faq .faq-side__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: var(--mist);
  transition: color 180ms ease;
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  border-color: rgba(43, 255, 136, 0.5);
  background: var(--lift);
}

.page-faq .faq-side__link:hover .faq-side__num,
.page-faq .faq-side__link:focus-visible .faq-side__num {
  color: var(--green);
}

.page-faq .faq-side__note {
  display: none;
  margin: 18px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
  border-left: 1px solid var(--line);
  padding-left: 12px;
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-sec {
  padding: 26px 0 8px;
  min-width: 0;
}

.page-faq .faq-sec__head {
  position: relative;
  margin-bottom: 20px;
  padding-left: 14px;
}

.page-faq .faq-sec__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--green), rgba(43, 255, 136, 0));
}

.page-faq .faq-sec__idx {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-sec h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 3vw, 27px);
  line-height: 1.3;
  letter-spacing: -0.005em;
  color: var(--ice);
}

.page-faq .faq-sec__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .divider {
  margin: 22px 0;
}

/* ---------- 六个分类 ---------- */
.page-faq .faq-cats-wrap {
  display: grid;
  gap: 18px;
}

.page-faq .faq-cats {
  display: grid;
  gap: 8px;
}

.page-faq .faq-cat {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num name"
    "desc desc"
    "count count";
  gap: 4px 10px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  color: inherit;
  text-decoration: none;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  border-color: rgba(43, 255, 136, 0.55);
  background: var(--lift);
  transform: translateX(2px);
}

.page-faq .faq-cat__num {
  grid-area: num;
  align-self: center;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--green);
}

.page-faq .faq-cat__name {
  grid-area: name;
  align-self: center;
  font-size: 15px;
  font-weight: 600;
  color: var(--ice);
}

.page-faq .faq-cat__desc {
  grid-area: desc;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .faq-cat__count {
  grid-area: count;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

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

.page-faq .faq-cats__media .media__inner {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}

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

.page-faq .media__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-stack {
  display: grid;
  gap: 10px;
}

.page-faq .faq-stack--tight {
  margin-top: 18px;
}

.page-faq .faq-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  overflow: hidden;
  transition: border-color 200ms ease, background 200ms ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(43, 255, 136, 0.42);
  background: var(--lift);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 15px;
  cursor: pointer;
  list-style: none;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ice);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.4;
  color: var(--green);
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: -3px;
}

.page-faq .faq-item__n {
  flex: none;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11.5px;
  line-height: 1.9;
  color: var(--mist);
}

.page-faq .faq-item__a {
  position: relative;
  padding: 0 16px 16px 41px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-item__a::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 16px;
  width: 1px;
  background: linear-gradient(180deg, rgba(43, 255, 136, 0.85), rgba(43, 255, 136, 0));
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 58ch;
}

/* ---------- 六字段说明 ---------- */
.page-faq .faq-fields {
  display: grid;
  gap: 8px;
  margin-bottom: 20px;
}

.page-faq .faq-field {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 10px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--green);
  border-radius: var(--radius-sm);
  background: var(--panel);
}

.page-faq .faq-field__k {
  grid-row: span 2;
  align-self: start;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11.5px;
  color: var(--cyan);
  padding-top: 3px;
}

.page-faq .faq-field__name {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ice);
}

.page-faq .faq-field__desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 规则四格 ---------- */
.page-faq .faq-rules-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 18px;
}

.page-faq .faq-rule {
  display: grid;
  gap: 6px;
  padding: 16px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-rule::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--green), var(--cyan));
}

.page-faq .faq-rule__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  line-height: 1;
  color: var(--ice);
}

.page-faq .faq-rule__name {
  font-size: 14px;
  font-weight: 600;
  color: var(--green);
}

.page-faq .faq-rule__desc {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-rules__media {
  margin: 0 0 4px;
}

.page-faq .faq-rules__media .media__inner {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}

/* ---------- 联系我们 ---------- */
.page-faq .faq-sec--help {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 26px 18px 24px;
  margin-top: 12px;
}

.page-faq .faq-contact {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 18px;
}

.page-faq .faq-contact__item {
  display: grid;
  gap: 4px;
  padding: 13px 15px;
  background: var(--bg);
}

.page-faq .faq-contact__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-faq .faq-contact__v {
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ice);
  word-break: break-word;
}

.page-faq .faq-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-stack .faq-item:nth-child(even) {
    margin-inline-start: 22px;
  }

  .page-faq .faq-stack .faq-item:nth-child(3n) {
    margin-inline-end: 22px;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-rules-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-sec--help {
    padding: 30px 26px 28px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 40px;
    padding-top: 34px;
    padding-bottom: 42px;
  }

  .page-faq .faq-cats-wrap {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
    gap: 22px;
  }

  .page-faq .faq-hero__facts {
    margin-top: 6px;
  }
}

@media (min-width: 1020px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-side-w) minmax(0, 1fr);
    gap: 46px;
    padding-top: 14px;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 96px;
    align-self: start;
    padding-top: 26px;
  }

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

  .page-faq .faq-side__link {
    border: none;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: transparent;
    padding: 10px 10px 10px 12px;
    white-space: normal;
  }

  .page-faq .faq-side__link:hover,
  .page-faq .faq-side__link:focus-visible {
    border-left-color: var(--green);
    background: var(--lift);
    transform: none;
  }

  .page-faq .faq-side__note {
    display: block;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero h1 {
    font-size: 52px;
  }

  .page-faq .faq-sec {
    padding-top: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-side__link,
  .page-faq .faq-item {
    transition: none;
  }

  .page-faq .faq-cat:hover,
  .page-faq .faq-cat:focus-visible {
    transform: none;
  }
}
<<<END>>>