.page-faq {
  --faq-rail-w: 250px;
  --faq-accent-index: var(--blue);
  --faq-accent-pair: var(--yellow);
  --faq-accent-table: var(--green);
  --faq-accent-notice: var(--gold);
  --faq-accent-fix: var(--red);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: var(--fs-5);
  line-height: 1.75;
  padding-bottom: 72px;
}

.page-faq .wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
  box-sizing: border-box;
}

.page-faq .breadcrumb {
  margin: 22px 0 0;
  font-size: var(--fs-7);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin: 18px 0 0;
  padding: 32px 22px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--grad-night);
  overflow: hidden;
  isolation: isolate;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -130px;
  right: -100px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: var(--grad-highland);
  opacity: .34;
  z-index: -1;
  pointer-events: none;
}

.page-faq .faq-hero__kicker {
  display: inline-flex;
  align-items: center;
  margin: 0 0 16px;
  padding: 4px 13px;
  border: 1px solid rgba(47, 109, 224, .55);
  border-radius: 999px;
  background: rgba(47, 109, 224, .1);
  font-size: var(--fs-7);
  letter-spacing: .1em;
  color: var(--blue);
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  max-width: 22ch;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: var(--fs-1);
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  margin: 0 0 22px;
  max-width: 46em;
  font-size: var(--fs-6);
  line-height: 1.8;
  color: rgba(242, 246, 252, .8);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line-soft);
  list-style: none;
  font-size: var(--fs-7);
  color: var(--muted);
}

.page-faq .faq-hero__meta li {
  display: flex;
  align-items: center;
  gap: 7px;
}

.page-faq .faq-hero__meta b {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

/* ---------- 区块骨架 ---------- */
.page-faq .faq-section {
  margin-top: 60px;
  scroll-margin-top: 100px;
}

.page-faq .sec-head {
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .sec-head h2 {
  margin: 12px 0 8px;
  font-family: var(--font-head);
  font-size: var(--fs-2);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .sec-head p {
  margin: 0;
  max-width: 46em;
  font-size: var(--fs-6);
  color: var(--muted);
}

/* ---------- 三步上手 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .step {
  position: relative;
  padding: 22px 20px 24px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--panel-hi);
  box-shadow: var(--shadow-1);
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}

.page-faq .step:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}

.page-faq .step__num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  border: 1px solid rgba(47, 109, 224, .5);
  border-radius: var(--radius-sm);
  background: var(--grad-highland);
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-faq .step h3 {
  margin: 0 0 8px;
  font-size: var(--fs-4);
  font-weight: 800;
  line-height: 1.32;
  color: var(--paper);
}

.page-faq .step p {
  margin: 0;
  font-size: var(--fs-6);
  line-height: 1.75;
  color: rgba(242, 246, 252, .76);
}

/* ---------- 并排视图 ---------- */
.page-faq .pair-figure {
  margin: 0 0 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--shadow-1);
}

.page-faq .pair-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1020 / 640;
  object-fit: cover;
}

.page-faq .pair-figure figcaption {
  padding: 12px 18px;
  border-top: 1px solid var(--line-soft);
  font-size: var(--fs-7);
  color: var(--muted);
}

.page-faq .pair-steps {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: ps;
}

.page-faq .pair-steps li {
  position: relative;
  padding: 13px 18px 13px 56px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: var(--panel);
  font-size: var(--fs-6);
  color: rgba(242, 246, 252, .82);
  transition: border-color .2s ease, background .2s ease;
}

.page-faq .pair-steps li:hover {
  border-color: var(--blue);
  background: var(--panel-hi);
}

.page-faq .pair-steps li::before {
  counter-increment: ps;
  content: counter(ps, decimal-leading-zero);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

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

.page-faq .metric-row li {
  padding: 5px 14px;
  border: 1px solid rgba(229, 179, 43, .45);
  border-radius: 999px;
  background: rgba(229, 179, 43, .12);
  font-family: var(--font-mono);
  font-size: var(--fs-7);
  color: var(--yellow);
  letter-spacing: .04em;
}

/* ---------- 三种检索 ---------- */
.page-faq .picks {
  display: grid;
  gap: 14px;
}

.page-faq .pick {
  padding: 20px 20px 18px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius);
  background: var(--panel-hi);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.page-faq .pick--round { border-left-color: var(--blue); }
.page-faq .pick--rank { border-left-color: var(--yellow); }
.page-faq .pick--tag { border-left-color: var(--green); }

.page-faq .pick:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}

.page-faq .pick h3 {
  margin: 0 0 10px;
  font-size: var(--fs-4);
  font-weight: 800;
  color: var(--paper);
}

.page-faq .pick p {
  margin: 0 0 12px;
  font-size: var(--fs-6);
  line-height: 1.75;
  color: rgba(242, 246, 252, .76);
}

.page-faq .pick__where {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: var(--fs-7);
  color: var(--muted);
}

/* ---------- 表格操作 ---------- */
.page-faq .table-split {
  display: grid;
  gap: 22px;
}

.page-faq .table-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--shadow-1);
}

.page-faq .table-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 920 / 620;
  object-fit: cover;
}

.page-faq .op-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .op-list li {
  padding: 14px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: var(--panel);
}

.page-faq .op-list__k {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: var(--fs-7);
  letter-spacing: .06em;
  color: var(--gold);
}

.page-faq .op-list__v {
  display: block;
  font-size: var(--fs-6);
  line-height: 1.75;
  color: rgba(242, 246, 252, .78);
}

/* ---------- 订阅与提醒 ---------- */
.page-faq .notice-grid {
  display: grid;
  gap: 14px;
}

.page-faq .notice-card {
  padding: 22px 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--panel-hi);
  box-shadow: var(--shadow-1);
  transition: border-color .2s ease, transform .2s ease;
}

.page-faq .notice-card:hover {
  border-color: var(--green);
  transform: translateY(-2px);
}

.page-faq .notice-card__num {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  background: rgba(30, 158, 107, .16);
  font-family: var(--font-mono);
  font-size: var(--fs-7);
  font-weight: 700;
  color: var(--green);
  letter-spacing: .08em;
}

.page-faq .notice-card h3 {
  margin: 0 0 8px;
  font-size: var(--fs-4);
  font-weight: 800;
  color: var(--paper);
}

.page-faq .notice-card p {
  margin: 0;
  font-size: var(--fs-6);
  line-height: 1.75;
  color: rgba(242, 246, 252, .76);
}

/* ---------- 分类问答 ---------- */
.page-faq .qa-layout {
  display: grid;
  gap: 22px;
}

.page-faq .qa-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-7);
  letter-spacing: .1em;
  color: var(--muted);
}

.page-faq .qa-rail .filter-bar {
  display: flex;
  flex-direction: row;
  gap: 6px;
  overflow-x: auto;
  padding: 0 0 8px;
  -webkit-overflow-scrolling: touch;
}

.page-faq .filter-chip {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: auto;
  padding: 9px 13px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: var(--panel);
  color: rgba(242, 246, 252, .82);
  font: inherit;
  font-size: var(--fs-7);
  white-space: nowrap;
  cursor: pointer;
  transition: border-color .18s ease, background .18s ease, color .18s ease;
}

.page-faq .filter-chip:hover {
  border-color: var(--blue);
  color: var(--paper);
}

.page-faq .filter-chip[aria-pressed="true"] {
  border-color: var(--blue);
  background: rgba(47, 109, 224, .18);
  color: var(--paper);
}

.page-faq .filter-chip__n {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-faq .qa-flow {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.page-faq .qa {
  --qa-accent: var(--faq-accent-index);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--qa-accent);
  border-radius: var(--radius-sm);
  background: var(--panel-hi);
  box-shadow: var(--shadow-1);
  transition: border-color .2s ease;
}

.page-faq .qa[data-category="index"] { --qa-accent: var(--faq-accent-index); }
.page-faq .qa[data-category="pair"] { --qa-accent: var(--faq-accent-pair); }
.page-faq .qa[data-category="table"] { --qa-accent: var(--faq-accent-table); }
.page-faq .qa[data-category="notice"] { --qa-accent: var(--faq-accent-notice); }
.page-faq .qa[data-category="fix"] { --qa-accent: var(--faq-accent-fix); }

.page-faq .qa:hover {
  border-color: rgba(47, 109, 224, .55);
}

.page-faq .qa[open] {
  border-color: rgba(47, 109, 224, .7);
}

.page-faq .qa__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 14px 44px 14px 16px;
  font-size: var(--fs-6);
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__q::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 21px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform .22s ease, border-color .18s ease;
}

.page-faq .qa[open] .qa__q::after {
  transform: rotate(-135deg);
  border-color: var(--gold);
}

.page-faq .qa__mark {
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--qa-accent);
}

.page-faq .qa__a {
  padding: 0 20px 16px 33px;
  font-size: var(--fs-6);
  line-height: 1.78;
  color: rgba(242, 246, 252, .74);
}

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

.page-faq .qa[open] .qa__a {
  animation: faq-open .24s ease both;
}

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

.page-faq .faq-empty {
  margin: 0;
  padding: 20px 18px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  font-size: var(--fs-6);
  text-align: center;
  color: var(--muted);
}

/* ---------- 未解决 ---------- */
.page-faq .help-card {
  display: grid;
  gap: 24px;
  padding: 28px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--grad-night);
  box-shadow: var(--shadow-1);
}

.page-faq .help-card h2 {
  margin: 12px 0 10px;
  font-family: var(--font-head);
  font-size: var(--fs-3);
  font-weight: 900;
  line-height: 1.25;
  color: var(--paper);
}

.page-faq .help-card__body > p {
  margin: 0 0 16px;
  max-width: 42em;
  font-size: var(--fs-6);
  line-height: 1.78;
  color: rgba(242, 246, 252, .78);
}

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

.page-faq .help-list li {
  position: relative;
  padding-left: 22px;
  font-size: var(--fs-6);
  color: rgba(242, 246, 252, .8);
}

.page-faq .help-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 9px;
  height: 2px;
  background: var(--gold);
}

.page-faq .help-card__side {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .help-card__note {
  margin: 6px 0 0;
  font-size: var(--fs-7);
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .help-card__link {
  font-size: var(--fs-7);
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 109, 224, .45);
  padding-bottom: 1px;
}

.page-faq .help-card__link:hover {
  color: var(--gold);
  border-bottom-color: rgba(245, 194, 74, .6);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-hero {
    padding: 42px 40px 34px;
  }

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

  .page-faq .notice-card:last-child {
    grid-column: 1 / -1;
  }

  .page-faq .help-card {
    padding: 34px 34px 30px;
  }
}

@media (min-width: 820px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
  }

  .page-faq .step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 46px;
    right: -16px;
    width: 16px;
    height: 1px;
    background: var(--line);
  }

  .page-faq .picks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-faq .notice-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .notice-card:last-child {
    grid-column: auto;
  }

  .page-faq .help-card {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
    gap: 40px;
  }

  .page-faq .help-card__side {
    padding-top: 0;
    border-top: 0;
    border-left: 1px solid var(--line-soft);
    padding-left: 28px;
  }
}

@media (min-width: 900px) {
  .page-faq .qa-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-faq .qa-rail__inner {
    position: sticky;
    top: 92px;
  }

  .page-faq .qa-rail .filter-bar {
    flex-direction: column;
    overflow-x: visible;
    padding-bottom: 0;
    gap: 6px;
  }

  .page-faq .filter-chip {
    flex: 1 1 auto;
    width: 100%;
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step,
  .page-faq .pick,
  .page-faq .notice-card,
  .page-faq .qa,
  .page-faq .pair-steps li,
  .page-faq .qa__q::after {
    transition: none;
  }

  .page-faq .qa[open] .qa__a {
    animation: none;
  }
}
<<<END>>>