.page-faq {
  --faq-pad-x: clamp(16px, 2.2vw, 26px);
  --faq-hair: rgba(16, 24, 34, .16);
  background: var(--c-night);
  color: var(--c-paper);
  font-family: var(--font-sans);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(30px, 5.2vw, 74px) 0 clamp(34px, 5.6vw, 78px);
  background:
    radial-gradient(1100px 480px at 78% -14%, rgba(31, 134, 196, .26), transparent 66%),
    linear-gradient(178deg, var(--c-night-2) 0%, var(--c-night) 78%);
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(26px, 4vw, 54px);
  align-items: start;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: clamp(30px, 4.4vw, 66px);
  }
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 22px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-muted);
}

.page-faq .breadcrumb a {
  color: var(--c-lake-light);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-faq .breadcrumb a:hover {
  border-bottom-color: currentColor;
}

.page-faq .breadcrumb__sep {
  color: var(--line-strong);
}

.page-faq .faq-hero__label {
  margin: 0 0 16px;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--c-lake-light);
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  max-width: 17em;
  font-size: clamp(30px, 5.6vw, 62px);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--c-paper);
}

.page-faq .faq-hero__lede {
  margin: 0 0 26px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: #C8D3DF;
}

.page-faq .faq-hero__marks {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin: 0 0 30px;
}

.page-faq .faq-mark {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line-strong);
  box-shadow: inset 0 0 0 3px rgba(7, 12, 20, .78);
  background: rgba(14, 23, 37, .58);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-muted);
}

.page-faq .faq-mark b {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--c-neon);
  font-variant-numeric: tabular-nums;
}

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

.page-faq .faq-hero__figure {
  margin: 0;
  border: 1px solid var(--line-dark);
  background: var(--c-night-2);
  box-shadow: var(--shadow-stack);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  filter: saturate(.82) contrast(1.06) brightness(.82);
}

.page-faq .figure__caption {
  display: block;
  padding: 11px 14px;
  border-top: 1px solid var(--line-faint);
  font-size: 12px;
  line-height: 1.65;
  letter-spacing: .04em;
  color: var(--c-muted);
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-board {
  padding: clamp(44px, 6.4vw, 100px) 0 clamp(42px, 5.8vw, 88px);
  background: var(--c-night);
}

.page-faq .faq-board__head {
  margin: 0 0 clamp(22px, 3.2vw, 38px);
}

.page-faq .index-no {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--c-neon);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-board__head .section-title {
  margin: 0 0 12px;
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1.3;
  color: var(--c-paper);
}

.page-faq .faq-board__note {
  margin: 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

/* 分段控件 */
.page-faq .faq-tabs__list {
  position: relative;
  display: flex;
  gap: clamp(14px, 2.4vw, 30px);
  overflow-x: auto;
  border-bottom: 1px solid var(--line-dark);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-tabs__tab {
  flex: 0 0 auto;
  margin: 0;
  padding: 14px 2px 15px;
  border: 0;
  background: none;
  color: var(--c-muted);
  font: inherit;
  font-size: clamp(14px, 1.5vw, 16px);
  letter-spacing: .06em;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-tabs__tab:hover {
  color: var(--c-lake-light);
}

.page-faq .faq-tabs__tab[aria-selected="true"] {
  color: var(--c-paper);
  font-weight: 600;
}

.page-faq .faq-tabs__tab:focus-visible {
  outline: 2px solid var(--c-lake-light);
  outline-offset: 3px;
}

.page-faq .faq-tabs__indicator {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 2px;
  background: var(--c-neon);
  pointer-events: none;
  transition: transform var(--dur) var(--ease), width var(--dur) var(--ease);
}

.page-faq .faq-tabs__panel {
  padding: clamp(20px, 3vw, 34px) 0 0;
}

.page-faq .faq-tabs__panel:focus-visible {
  outline: none;
}

/* 手风琴 */
.page-faq .faq-q {
  margin: 0 0 10px;
  border: 1px solid var(--line-dark);
  border-left: 3px solid rgba(127, 196, 232, .22);
  background: linear-gradient(180deg, rgba(27, 38, 53, .55), rgba(14, 23, 37, .55));
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-q:hover {
  border-color: var(--line-strong);
  border-left-color: var(--c-lake);
}

.page-faq .faq-q[open] {
  border-color: var(--line-strong);
  border-left-color: var(--c-neon);
  background: linear-gradient(180deg, rgba(40, 57, 78, .74), rgba(16, 26, 40, .86));
}

.page-faq .faq-q__summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: clamp(15px, 1.8vw, 20px) var(--faq-pad-x);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q__summary::marker {
  content: "";
}

.page-faq .faq-q__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 2;
  letter-spacing: .06em;
  color: var(--c-lake-light);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-q[open] .faq-q__no {
  color: var(--c-neon);
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.65;
  letter-spacing: .01em;
  color: var(--c-paper);
}

.page-faq .faq-q__summary::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.4;
  color: var(--c-lake-light);
}

.page-faq .faq-q[open] .faq-q__summary::after {
  content: "–";
  color: var(--c-neon);
}

.page-faq .faq-q__body {
  margin: 0;
  padding: clamp(12px, 1.6vw, 16px) var(--faq-pad-x) clamp(16px, 2vw, 22px);
  border-top: 1px solid var(--line-faint);
}

.page-faq .faq-q__body p {
  margin: 0 0 12px;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.9;
  color: #B9C6D4;
}

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

.page-faq .faq-q__body b {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0;
  color: var(--c-neon);
  font-variant-numeric: tabular-nums;
}

/* 观赛面板的双栏 */
.page-faq .faq-split {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

@media (min-width: 1000px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .85fr);
    align-items: start;
  }
}

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

.page-faq .faq-split__aside {
  margin: 0;
  border: 1px solid var(--line-dark);
  background: var(--c-night-2);
  box-shadow: var(--shadow-stack);
}

.page-faq .faq-split__aside img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(.78) brightness(.86);
}

@media (min-width: 1000px) {
  .page-faq .faq-split__aside {
    position: sticky;
    top: 24px;
  }
}

/* ---------- 快速上手三步（纸面章节） ---------- */
.page-faq .faq-start {
  padding: clamp(44px, 6.4vw, 96px) 0 clamp(46px, 6.6vw, 100px);
  background: var(--c-paper);
  color: var(--c-ink);
  border-top: 1px solid var(--faq-hair);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-start .index-no {
  color: var(--c-lake);
}

.page-faq .faq-start__title {
  margin: 0 0 14px;
  font-size: clamp(24px, 3.6vw, 36px);
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1.3;
  color: var(--c-ink);
}

.page-faq .faq-start__note {
  margin: 0 0 clamp(24px, 3.6vw, 44px);
  max-width: 44em;
  font-size: 15px;
  line-height: 1.85;
  color: #445264;
}

.page-faq .faq-start__list {
  margin: 0 0 clamp(26px, 4vw, 44px);
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-step {
  display: grid;
  gap: 12px;
  padding: clamp(22px, 3vw, 34px) 0;
  border-bottom: 1px solid var(--faq-hair);
}

@media (min-width: 860px) {
  .page-faq .faq-step {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: clamp(20px, 3vw, 46px);
    align-items: start;
  }
}

.page-faq .faq-step__no {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(46px, 6vw, 76px);
  font-weight: 200;
  line-height: .9;
  letter-spacing: -.03em;
  color: var(--c-lake);
  font-variant-numeric: tabular-nums;
}

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

.page-faq .faq-step__title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.45;
  color: var(--c-ink);
}

.page-faq .faq-step__text {
  margin: 0 0 14px;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.85;
  color: #38475A;
}

.page-faq .faq-step__meta {
  display: inline-block;
  margin: 0;
  padding: 7px 13px;
  border: 1px solid rgba(16, 24, 34, .2);
  box-shadow: inset 0 0 0 3px var(--c-paper), inset 0 0 0 4px rgba(16, 24, 34, .18);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: #1F6B99;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-start__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

.page-faq .faq-start__link {
  display: inline-flex;
  align-items: center;
  padding: 10px 2px;
  border-bottom: 2px solid var(--c-lake);
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--c-ink);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-start__link:hover {
  color: #1F6B99;
  border-bottom-color: var(--c-amber);
}

/* ---------- 尾部联系 ---------- */
.page-faq .faq-help {
  padding: clamp(44px, 6.4vw, 96px) 0 clamp(46px, 6.6vw, 100px);
  background:
    radial-gradient(760px 340px at 10% 0%, rgba(242, 118, 46, .14), transparent 70%),
    var(--c-night-2);
}

.page-faq .faq-help__inner {
  display: grid;
  gap: clamp(24px, 3.6vw, 54px);
}

@media (min-width: 900px) {
  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
  }
}

.page-faq .faq-help__title {
  margin: 0 0 14px;
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1.3;
  color: var(--c-paper);
}

.page-faq .faq-help__lede {
  margin: 0 0 14px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.9;
  color: #B9C6D4;
}

.page-faq .faq-help__box {
  padding: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--line-strong);
  background: rgba(7, 12, 20, .62);
  box-shadow: inset 0 0 0 4px rgba(7, 12, 20, .92), var(--shadow-stack);
}

.page-faq .faq-help__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  margin: 0 0 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-faint);
  font-size: 14px;
}

.page-faq .faq-help__row span {
  flex: 0 0 82px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-muted);
}

.page-faq .faq-help__row b {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: .01em;
  color: var(--c-paper);
  word-break: break-word;
}

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tabs__indicator,
  .page-faq .faq-q,
  .page-faq .faq-tabs__tab,
  .page-faq .faq-start__link,
  .page-faq .breadcrumb a {
    transition: none;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-hero__actions .btn,
  .page-faq .faq-start__actions .btn {
    width: 100%;
    justify-content: center;
  }

  .page-faq .faq-mark {
    width: 100%;
  }
}
<<<END>>>