.page-faq {
  --faq-line: rgba(143, 163, 188, .26);
  --faq-ink-soft: #46566F;
  --faq-paper-line: rgba(34, 52, 77, .16);
  --faq-panel: rgba(18, 31, 51, .55);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: clamp(1.2rem, 3vw, 2rem) 0 clamp(2rem, 5vw, 3.4rem);
  background:
    radial-gradient(120% 80% at 84% 4%, rgba(42, 212, 230, .13), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, #0B1727 58%, var(--slate) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -8%;
  width: min(560px, 72%);
  height: 150%;
  background: linear-gradient(158deg, rgba(42, 212, 230, .22), rgba(42, 212, 230, 0) 72%);
  clip-path: polygon(34% 0, 100% 0, 68% 100%, 0 100%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -6%;
  bottom: -34%;
  width: min(320px, 52%);
  height: 62%;
  background: linear-gradient(120deg, rgba(255, 107, 44, .22), rgba(255, 107, 44, 0) 78%);
  clip-path: polygon(0 0, 100% 28%, 86% 100%, 14% 76%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.6rem);
  margin-top: clamp(.9rem, 2.4vw, 1.6rem);
}

.page-faq .faq-hero h1 {
  margin: .5rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 5.4vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-faq .faq-hero__lede {
  margin: 1rem 0 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.78;
  color: rgba(251, 252, 254, .82);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hero__meta {
  margin: 1.3rem 0 0;
  font-size: .8rem;
  letter-spacing: .02em;
  color: var(--mute);
}

.page-faq .faq-hero__meta .num {
  font-family: var(--font-mono);
  color: var(--cyan);
  font-size: .95rem;
}

.page-faq .hero-jumps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .3rem;
  border-top: 1px solid var(--faq-line);
}

.page-faq .hero-jumps li {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .hero-jumps a {
  display: flex;
  align-items: center;
  gap: .9rem;
  padding: .78rem .5rem;
  color: var(--white);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background var(--fast) var(--ease), border-color var(--fast) var(--ease), transform var(--fast) var(--ease);
}

.page-faq .hero-jumps a:hover,
.page-faq .hero-jumps a:focus-visible {
  background: rgba(42, 212, 230, .08);
  border-left-color: var(--cyan);
  transform: translateX(4px);
}

.page-faq .hero-jumps__no {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-faq .hero-jumps__txt {
  font-size: .95rem;
}

/* ---------- 区块通用 ---------- */
.page-faq .faq-band {
  padding: clamp(2rem, 5vw, 3.4rem) 0;
}

.page-faq .faq-band--paper {
  background: var(--paper);
  color: var(--ink);
  border-top: 1px solid var(--faq-paper-line);
  border-bottom: 1px solid var(--faq-paper-line);
}

.page-faq .faq-head {
  max-width: 64ch;
}

.page-faq .faq-head__lede {
  margin: .8rem 0 0;
  font-size: 1rem;
  line-height: 1.78;
  color: rgba(251, 252, 254, .78);
}

.page-faq h2 {
  margin: .35rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2.15rem);
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--white);
  scroll-margin-top: 5rem;
}

.page-faq .faq-band--paper h2,
.page-faq .faq-band--paper h3 {
  color: var(--ink);
}

.page-faq .faq-band--paper .faq-head__lede {
  color: var(--faq-ink-soft);
}

.page-faq .faq-band--paper .eyebrow {
  color: #0F7C8A;
}

.page-faq .faq-article + .faq-article {
  margin-top: clamp(2rem, 4vw, 3rem);
  padding-top: clamp(1.6rem, 3.4vw, 2.4rem);
  border-top: 1px solid var(--faq-line);
}

/* ---------- 步骤带 ---------- */
.page-faq .step-band {
  list-style: none;
  margin: clamp(1.4rem, 3vw, 2rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--faq-paper-line);
}

.page-faq .step-band li {
  position: relative;
  padding: 1.1rem 0 1.1rem 3rem;
  border-bottom: 1px solid var(--faq-paper-line);
}

.page-faq .step-band__no {
  position: absolute;
  left: 0;
  top: 1.05rem;
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--cyan), #16A8BE);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .04em;
}

.page-faq .step-band h3 {
  margin: 0 0 .4rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: .01em;
}

.page-faq .step-band p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.72;
  color: var(--faq-ink-soft);
}

.page-faq .faq-split {
  display: grid;
  gap: clamp(1.2rem, 3vw, 1.8rem);
  margin-top: clamp(1.4rem, 3vw, 2rem);
}

.page-faq .faq-notes {
  display: grid;
  gap: .8rem;
  align-content: start;
}

.page-faq .note-card {
  padding: 1rem 1.1rem;
  background: rgba(34, 52, 77, .05);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
}

.page-faq .note-card h3 {
  margin: 0 0 .35rem;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: .01em;
}

.page-faq .note-card p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

/* ---------- 图示容器 ---------- */
.page-faq .faq-shot {
  margin: 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--faq-panel);
}

.page-faq .faq-shot img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-faq .faq-shot .img-frame__cap {
  margin: 0;
  padding: .7rem .9rem;
  font-size: .78rem;
  line-height: 1.6;
  color: var(--mute);
  border-top: 1px solid var(--faq-line);
  background: rgba(10, 20, 36, .38);
}

.page-faq .faq-band--paper .faq-shot {
  border-color: var(--faq-paper-line);
  background: #FFFFFF;
}

.page-faq .faq-band--paper .faq-shot .img-frame__cap {
  color: var(--faq-ink-soft);
  border-top-color: var(--faq-paper-line);
  background: rgba(34, 52, 77, .04);
}

.page-faq .faq-shot--square {
  max-width: 420px;
}

/* ---------- 左索引 + 右问答 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: clamp(1.6rem, 3.2vw, 2.6rem);
  padding: clamp(1.8rem, 4vw, 2.8rem) 0 clamp(2.4rem, 5vw, 4rem);
}

.page-faq .faq-aside__title {
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--mute);
}

.page-faq .faq-index {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-index a {
  display: block;
  padding: .62rem 0 .62rem .85rem;
  border-left: 2px solid transparent;
  color: rgba(251, 252, 254, .82);
  text-decoration: none;
  font-size: .9rem;
  line-height: 1.5;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease), background var(--fast) var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(42, 212, 230, .06);
}

.page-faq .faq-aside__note {
  margin: 1rem 0 0;
  font-size: .82rem;
  color: var(--mute);
}

.page-faq .faq-aside__note a {
  color: var(--cyan);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  margin-top: 1.2rem;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .qa {
  border-top: 1px solid var(--faq-line);
}

.page-faq .qa[open] {
  background: linear-gradient(180deg, rgba(42, 212, 230, .06), rgba(42, 212, 230, 0) 78%);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  padding: .95rem .2rem;
  cursor: pointer;
  list-style: none;
  font-size: .98rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--white);
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  padding-left: 1rem;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--cyan);
}

.page-faq .qa[open] .qa__q::after {
  content: "–";
}

.page-faq .qa__no {
  flex: 0 0 auto;
  padding-top: .18rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--mute);
}

.page-faq .qa__a {
  margin: 0 0 1.1rem .3rem;
  padding: 0 0 0 1.4rem;
  border-left: 2px solid var(--cyan);
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 62ch;
  font-size: .93rem;
  line-height: 1.78;
  color: rgba(251, 252, 254, .78);
}

.page-faq .qa__a a {
  color: var(--cyan);
}

/* ---------- 榜单区块 ---------- */
.page-faq .board-grid {
  display: grid;
  gap: clamp(1.2rem, 3vw, 1.8rem);
  margin-top: clamp(1.3rem, 3vw, 1.8rem);
}

.page-faq .board-side {
  min-width: 0;
}

.page-faq .float-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .75rem;
}

.page-faq .float-legend li {
  display: flex;
  gap: .85rem;
  align-items: flex-start;
  padding-bottom: .8rem;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .float-legend strong {
  display: block;
  font-family: var(--font-display);
  font-size: .98rem;
  letter-spacing: .02em;
  color: var(--white);
}

.page-faq .float-legend p {
  margin: .25rem 0 0;
  font-size: .88rem;
  line-height: 1.68;
  color: rgba(251, 252, 254, .72);
}

.page-faq .float-mark {
  flex: 0 0 auto;
  width: 2.1rem;
  height: 2.1rem;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  border: 1px solid;
  font-family: var(--font-mono);
  font-size: 1rem;
}

.page-faq .float-mark--up {
  color: #6E4E08;
  background: linear-gradient(160deg, var(--gold-lt), var(--gold-dk));
  border-color: var(--gold-dk);
}

.page-faq .float-mark--down {
  color: #8E322B;
  background: rgba(217, 86, 79, .18);
  border-color: var(--clay);
}

.page-faq .float-mark--hold {
  color: var(--mute);
  background: rgba(143, 163, 188, .1);
  border-color: var(--faq-line);
}

/* ---------- 栏目结构 ---------- */
.page-faq .col-tree {
  display: grid;
  gap: 1rem;
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
  padding: clamp(1rem, 2.6vw, 1.5rem);
  border: 1px solid var(--stone);
  border-radius: var(--radius);
  background-color: rgba(18, 31, 51, .6);
  background-image:
    linear-gradient(rgba(143, 163, 188, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 163, 188, .07) 1px, transparent 1px);
  background-size: 28px 28px;
}

.page-faq .col-tree__label {
  margin: 0 0 .6rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--mute);
}

.page-faq .col-tree ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

.page-faq .col-tree li {
  padding: .32rem .72rem;
  border: 1px solid var(--stone);
  border-radius: 99px;
  background: rgba(10, 20, 36, .6);
  color: var(--white);
  font-size: .86rem;
}

.page-faq .col-tree__arrow {
  font-family: var(--font-mono);
  color: var(--cyan);
  text-align: center;
  transform: rotate(90deg);
}

.page-faq .col-tree__body {
  margin: 0;
  font-size: .9rem;
  line-height: 1.72;
  color: rgba(251, 252, 254, .76);
}

/* ---------- 规格区块 ---------- */
.page-faq .faq-spec {
  margin-top: clamp(2rem, 4vw, 3rem);
  padding: clamp(1.3rem, 3vw, 2rem);
  border: 1px solid var(--stone);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  background: linear-gradient(150deg, var(--slate), #0C1930 72%);
}

.page-faq .spec-check {
  list-style: none;
  margin: 1.3rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-faq .spec-check li {
  padding-left: 1.1rem;
  border-left: 1px solid var(--faq-line);
}

.page-faq .spec-check strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: .01em;
  color: var(--white);
}

.page-faq .spec-check p {
  margin: .35rem 0 0;
  font-size: .91rem;
  line-height: 1.72;
  color: rgba(251, 252, 254, .74);
}

.page-faq .spec-link {
  margin: 1.4rem 0 0;
}

/* ---------- 刷新频率 ---------- */
.page-faq .freq-list {
  list-style: none;
  margin: 1.3rem 0 0;
  padding: 0;
  display: grid;
  gap: .75rem;
}

.page-faq .freq-list li {
  padding: .95rem 1.05rem;
  border: 1px solid var(--faq-line);
  border-top: 2px solid var(--cyan);
  border-radius: var(--radius);
  background: rgba(18, 31, 51, .45);
}

.page-faq .freq-list li:nth-child(2) {
  border-top-color: var(--gold);
}

.page-faq .freq-list li:nth-child(3) {
  border-top-color: var(--moss);
}

.page-faq .freq-list strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: .01em;
  color: var(--white);
}

.page-faq .freq-list span {
  display: block;
  margin-top: .3rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--mute);
}

.page-faq .freq-list p {
  margin: .55rem 0 0;
  font-size: .89rem;
  line-height: 1.68;
  color: rgba(251, 252, 254, .72);
}

/* ---------- 同步流程 ---------- */
.page-faq .sync-flow {
  list-style: none;
  margin: 1.3rem 0 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.page-faq .sync-flow li {
  position: relative;
  padding: .85rem 1rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: rgba(18, 31, 51, .5);
  font-size: .9rem;
  line-height: 1.6;
  color: var(--white);
}

.page-faq .sync-flow li::after {
  content: "→";
  position: absolute;
  right: -1rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  color: var(--cyan);
}

.page-faq .sync-flow li:last-child::after {
  display: none;
}

/* ---------- 结尾引导 ---------- */
.page-faq .faq-cta {
  margin-top: clamp(1.6rem, 3.4vw, 2.4rem);
  padding: clamp(1.3rem, 3.2vw, 2rem);
  border: 1px solid var(--stone);
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(255, 107, 44, .14), rgba(42, 212, 230, .09) 72%);
  display: grid;
  gap: 1rem;
  align-items: center;
}

.page-faq .faq-cta h2 {
  margin: 0;
  font-size: clamp(1.25rem, 2.8vw, 1.6rem);
  scroll-margin-top: 5rem;
}

.page-faq .faq-cta p {
  margin: .5rem 0 0;
  max-width: 58ch;
  font-size: .93rem;
  line-height: 1.72;
  color: rgba(251, 252, 254, .78);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }

  .page-faq .col-tree {
    grid-template-columns: minmax(0, 1.4fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 1.4rem;
  }

  .page-faq .col-tree__arrow {
    transform: rotate(0deg);
  }

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

  .page-faq .sync-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.3rem;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

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

  .page-faq .step-band li {
    border-bottom: 0;
    border-left: 1px solid var(--faq-paper-line);
    padding: 3.2rem 1.5rem 1.2rem 1.5rem;
  }

  .page-faq .step-band li:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .page-faq .step-band__no {
    top: 1.1rem;
    left: 1.5rem;
  }

  .page-faq .step-band li:first-child .step-band__no {
    left: 0;
  }

  .page-faq .step-band li:last-child {
    padding-right: 0;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: end;
  }

  .page-faq .hero-jumps {
    border-top: 0;
    border-left: 1px solid var(--faq-line);
    padding-left: clamp(1rem, 2vw, 1.6rem);
  }

  .page-faq .board-grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: 218px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 1.4rem;
  }
}

@media (max-width: 1023px) {
  .page-faq .faq-index {
    display: flex;
    gap: .5rem;
    overflow-x: auto;
    border-top: 0;
    padding-bottom: .4rem;
    -webkit-overflow-scrolling: touch;
  }

  .page-faq .faq-index li {
    flex: 0 0 auto;
  }

  .page-faq .faq-index a {
    white-space: nowrap;
    padding: .42rem .85rem;
    border: 1px solid var(--faq-line);
    border-radius: 99px;
    font-size: .85rem;
  }

  .page-faq .faq-index a:hover,
  .page-faq .faq-index a:focus-visible {
    border-color: var(--cyan);
  }
}

@media (max-width: 759px) {
  .page-faq .sync-flow li::after {
    display: none;
  }

  .page-faq .sync-flow li {
    padding-left: 1.5rem;
  }

  .page-faq .sync-flow li::before {
    content: "";
    position: absolute;
    left: .75rem;
    top: 1.05rem;
    width: .4rem;
    height: .4rem;
    border-radius: 50%;
    background: var(--cyan);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .hero-jumps a,
  .page-faq .faq-index a {
    transition: none;
    transform: none;
  }
}