.page-faq {
  --faq-side: 268px;
  --faq-answer-w: 48ch;
  padding-bottom: clamp(52px, 8vw, 104px);
  background: var(--ink-900);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--h-header) + clamp(20px, 4vw, 44px)) 0 clamp(26px, 5vw, 54px);
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(58% 88% at 88% -6%, rgba(43, 227, 198, .14), transparent 62%),
    radial-gradient(48% 74% at 2% 104%, rgba(255, 124, 54, .10), transparent 64%);
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(27, 39, 57, .55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(27, 39, 57, .55) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: .35;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 88%);
}
.page-faq .faq-hero .shell {
  position: relative;
  z-index: 1;
}
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: .04em;
  color: var(--muted);
  margin-bottom: clamp(18px, 3vw, 30px);
}
.page-faq .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}
.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--line-bright);
}
.page-faq .breadcrumb [aria-current="page"] {
  color: var(--text-soft);
}
.page-faq .breadcrumb__sep {
  color: var(--muted-deep);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(20px, 4vw, 34px);
}
.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 14px;
}
.page-faq h1 {
  margin: 0;
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--text);
  max-width: 15ch;
}
.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 40ch;
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.78;
  color: var(--text-soft);
}

.page-faq .faq-hero__meta {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(160deg, rgba(16, 26, 43, .92), rgba(10, 16, 28, .92));
  padding: 16px 18px;
}
.page-faq .faq-hero__meta-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-faq .faq-hero__meta ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-faq .faq-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  color: var(--text-soft);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}
.page-faq .faq-hero__meta li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-faq .faq-hero__meta .data-mono {
  color: var(--cyan);
  font-size: 15px;
  letter-spacing: -.01em;
}
.page-faq .data-mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 两栏布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 4vw, 42px);
  padding-top: clamp(24px, 4vw, 48px);
  align-items: start;
}

/* ---------- 左侧目录 ---------- */
.page-faq .faq-index {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--ink-800);
  padding: 16px 14px;
}
.page-faq .faq-index__title {
  margin: 0 0 12px;
  padding-left: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-faq .faq-index ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-faq .faq-index a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  border-radius: var(--radius-s);
  font-size: 14px;
  color: var(--text-soft);
  text-decoration: none;
  transition: background .16s var(--ease), color .16s var(--ease), border-color .16s var(--ease);
}
.page-faq .faq-index__n {
  font-size: 11px;
  color: var(--muted-deep);
  letter-spacing: .06em;
}
.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  background: var(--ink-700);
  color: var(--text);
}
.page-faq .faq-index a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-faq .faq-index a[aria-current="true"] {
  background: rgba(43, 227, 198, .08);
  border-left-color: var(--cyan);
  color: var(--cyan-bright);
}
.page-faq .faq-index a[aria-current="true"] .faq-index__n {
  color: var(--cyan);
}
.page-faq .faq-index__note {
  margin: 14px 6px 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 问题组 ---------- */
.page-faq .faq-section {
  padding: clamp(22px, 3.4vw, 34px) 0;
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: calc(var(--h-header-scrolled) + 26px);
}
.page-faq .faq-section:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-faq .faq-section--last {
  padding-bottom: 0;
}
.page-faq .faq-section__head {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num title"
    "sub sub";
  align-items: center;
  column-gap: 12px;
  row-gap: 8px;
  margin-bottom: clamp(14px, 2vw, 20px);
}
.page-faq .faq-section__num {
  grid-area: num;
  margin: 0;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
  padding: 3px 8px;
  border: 1px solid var(--line-bright);
  border-radius: var(--radius-s);
  background: rgba(15, 75, 69, .35);
}
.page-faq .faq-section__head h2 {
  grid-area: title;
  margin: 0;
  font-size: clamp(21px, 3vw, 28px);
  letter-spacing: -.01em;
  color: var(--text);
}
.page-faq .faq-section__sub {
  grid-area: sub;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
}
.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--ink-800);
  transition: border-color .16s var(--ease), background .16s var(--ease), transform .16s var(--ease);
}
.page-faq .qa:hover {
  border-color: var(--line-bright);
}
.page-faq .qa[open] {
  background: linear-gradient(180deg, rgba(16, 26, 43, .96), rgba(10, 16, 28, .96));
  border-color: var(--line-bright);
  box-shadow: inset 2px 0 0 var(--cyan);
}
.page-faq .qa summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 14px 46px 14px 16px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--text);
  border-radius: var(--radius-m);
  transition: color .16s var(--ease);
}
.page-faq .qa summary::-webkit-details-marker {
  display: none;
}
.page-faq .qa summary::marker {
  content: "";
}
.page-faq .qa summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
  transition: color .16s var(--ease);
}
.page-faq .qa[open] summary::after {
  content: "–";
  color: var(--cyan-bright);
}
.page-faq .qa summary:hover {
  color: var(--cyan-bright);
}
.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-faq .qa__body {
  padding: 0 16px 16px;
  border-top: 1px solid var(--line-soft);
  margin-top: 2px;
  padding-top: 12px;
}
.page-faq .qa__body p {
  margin: 0;
  max-width: var(--faq-answer-w);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-soft);
}
.page-faq .qa__body p + p,
.page-faq .qa__body .steps + p {
  margin-top: 10px;
}
.page-faq .qa__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-bright);
}
.page-faq .qa__body a:hover,
.page-faq .qa__body a:focus-visible {
  color: var(--cyan-bright);
  border-bottom-color: var(--cyan-bright);
}
.page-faq .qa__tail {
  font-size: 13px !important;
  color: var(--muted) !important;
  margin-top: 10px !important;
}

/* ---------- 步骤清单 ---------- */
.page-faq .steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  max-width: var(--faq-answer-w);
}
.page-faq .qa__body .steps {
  margin-top: 12px;
}
.page-faq .steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-soft);
}
.page-faq .steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--cyan);
  border-bottom: 1px solid var(--line-bright);
  padding-bottom: 2px;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 16px 0 0;
}
.page-faq .faq-figure figcaption {
  margin-top: 8px;
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: .02em;
  color: var(--muted);
}
.page-faq .img-frame img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-figure--side {
  margin-top: 0;
}

/* ---------- 赛程层级示意 ---------- */
.page-faq .path-map {
  margin-top: 16px;
  padding: 16px 18px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(180deg, rgba(43, 227, 198, .06), rgba(10, 16, 28, 0) 72%), var(--ink-800);
}
.page-faq .path-map__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-faq .path-track {
  position: relative;
  display: grid;
  gap: 16px;
  padding-left: 22px;
}
.page-faq .path-track::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 14px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), rgba(43, 227, 198, .12));
}
.page-faq .path-step {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-soft);
}
.page-faq .path-step::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 50%;
  width: 12px;
  height: 1px;
  background: var(--line-bright);
}
.page-faq .path-step__n {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  margin-left: -30px;
  border-radius: 50%;
  border: 1px solid var(--cyan);
  background: var(--ink-900);
  font-size: 10px;
  color: var(--cyan);
}
.page-faq .path-step__label {
  color: var(--text);
  font-weight: 700;
}
.page-faq .chip {
  border-radius: var(--radius-pill);
  padding: 2px 9px;
  font-size: 11px;
  font-family: var(--font-mono);
  letter-spacing: .04em;
}
.page-faq .chip--cyan {
  color: var(--cyan);
  background: rgba(15, 75, 69, .5);
  border: 1px solid var(--line-bright);
}

/* ---------- 字段与数据 ---------- */
.page-faq .field-grid {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
}
.page-faq .field-grid li {
  background: var(--ink-800);
  padding: 11px 12px 11px 22px;
  position: relative;
  font-size: 13.5px;
  color: var(--text-soft);
}
.page-faq .field-grid li::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--cyan);
}
.page-faq .faq-stats {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
}
.page-faq .faq-stats .stat {
  background: var(--ink-800);
  padding: 14px 14px 12px;
  display: grid;
  gap: 4px;
}
.page-faq .faq-stats .stat__value {
  font-size: clamp(20px, 3.4vw, 26px);
  line-height: 1.1;
  color: var(--cyan);
  letter-spacing: -.01em;
}
.page-faq .faq-stats .stat__label {
  font-size: 12px;
  color: var(--muted);
}

/* ---------- 未解决面板 ---------- */
.page-faq .help-panel {
  margin-top: 14px;
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background:
    radial-gradient(70% 120% at 96% 0%, rgba(255, 124, 54, .14), transparent 62%),
    var(--ink-700);
}
.page-faq .help-panel__text {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--text-soft);
}
.page-faq .help-panel__text strong {
  color: var(--cyan);
  font-weight: 700;
  word-break: break-all;
}
.page-faq .help-panel .steps {
  margin-top: 16px;
}
.page-faq .help-panel__actions {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-faq .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform .16s var(--ease), background .16s var(--ease), border-color .16s var(--ease), color .16s var(--ease);
}
.page-faq .btn--primary {
  background: var(--cyan);
  color: var(--ink-900);
}
.page-faq .btn--primary:hover,
.page-faq .btn--primary:focus-visible {
  background: var(--cyan-bright);
  transform: translateY(-2px);
}
.page-faq .btn--ghost {
  border-color: var(--line);
  color: var(--text-soft);
  background: transparent;
}
.page-faq .btn--ghost:hover,
.page-faq .btn--ghost:focus-visible {
  border-color: var(--line-bright);
  color: var(--cyan-bright);
  transform: translateY(-2px);
}
.page-faq .btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .field-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-faq .faq-section__head {
    grid-template-columns: auto 1fr;
    grid-template-areas: "num title";
  }
  .page-faq .faq-section__sub {
    grid-column: 1 / -1;
  }
  .page-faq .path-track {
    padding-left: 26px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 264px;
    align-items: end;
    gap: 36px;
  }
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-side) minmax(0, 1fr);
  }
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--h-header-scrolled) + 18px);
  }
  .page-faq .faq-split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 22px;
    align-items: start;
  }
  .page-faq .faq-figure--side {
    margin-top: 2px;
  }
  .page-faq .faq-section__sub {
    grid-column: auto;
    grid-area: sub;
  }
  .page-faq .faq-section__head {
    grid-template-columns: auto minmax(0, auto) minmax(0, 1fr);
    grid-template-areas: "num title sub";
    column-gap: 14px;
  }
  .page-faq .faq-section__sub {
    text-align: right;
    justify-self: end;
    max-width: 30ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .btn,
  .page-faq .faq-index a {
    transition: none;
  }
  .page-faq .btn:hover {
    transform: none;
  }
}
<<<END>>>