.page-faq {
  --faq-surface: #0D2032;
  --faq-surface-2: #12293F;
  --faq-rule: rgba(124, 140, 168, .22);
  --faq-rule-strong: rgba(124, 140, 168, .32);
  display: block;
  color: var(--paper);
  padding-bottom: clamp(2rem, 6vw, 4rem);
}

.page-faq > .breadcrumbs,
.page-faq > .faq-hero,
.page-faq > .section {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-faq a {
  color: var(--cyan);
  text-decoration-color: rgba(47, 224, 200, .4);
  text-underline-offset: 3px;
}

.page-faq a:hover {
  text-decoration-color: var(--cyan);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding-top: clamp(1.4rem, 4vw, 2.6rem);
  padding-bottom: clamp(1.8rem, 4.5vw, 3rem);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -30% -12% auto -12%;
  height: 360px;
  background:
    radial-gradient(58% 100% at 10% 0%, rgba(240, 180, 41, .16), transparent 70%),
    radial-gradient(52% 92% at 86% 6%, rgba(47, 224, 200, .13), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(2.1rem, 6.2vw, 4.1rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--paper);
  margin: .7rem 0 1rem;
  max-width: 20ch;
}

.page-faq .faq-hero-lead {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2vw, 1.16rem);
  line-height: 1.88;
  color: var(--mist);
  max-width: 64ch;
  margin: 0;
}

.page-faq .faq-actions {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin: 1.6rem 0 0;
  padding: 0;
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 2rem 0 0;
  padding: 1px;
  background: var(--faq-rule);
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-m);
  overflow: hidden;
}

.page-faq .faq-stat {
  background: var(--faq-surface);
  padding: 1rem 1.1rem;
}

.page-faq .faq-stat-label {
  font-size: .82rem;
  color: var(--mist);
  margin: 0;
}

.page-faq .faq-stat-num {
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: .04em;
  font-size: 1.5rem;
  color: var(--cyan);
  margin: .35rem 0 0;
}

@media (min-width: 720px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 区块通用 ---------- */

.page-faq .section {
  padding-top: clamp(2.2rem, 5vw, 3.6rem);
}

.page-faq .faq-h2 {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.4vw, 2.1rem);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--paper);
  margin: 0 0 .65rem;
}

.page-faq .faq-sub {
  font-size: .97rem;
  line-height: 1.85;
  color: var(--mist);
  max-width: 70ch;
  margin: 0 0 1.6rem;
}

.page-faq .faq-figure {
  margin: 0 0 1.6rem;
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-m);
  overflow: hidden;
  background: var(--faq-surface);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 5;
  object-fit: cover;
}

.page-faq .faq-figure-tall img {
  aspect-ratio: 3 / 2;
}

/* ---------- 四步流程 ---------- */

.page-faq .step-track {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.page-faq .step-card {
  position: relative;
  padding: 1.25rem 1.15rem 1.35rem;
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-m);
  background: linear-gradient(180deg, rgba(18, 41, 63, .92), rgba(13, 32, 50, .92));
  transition: border-color .24s var(--ease), transform .24s var(--ease);
}

.page-faq .step-card:hover {
  border-color: var(--line-cyan);
  transform: translateY(-3px);
}

.page-faq .step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 .55rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-amber);
  background: rgba(240, 180, 41, .1);
  color: var(--amber);
  font-size: .9rem;
  letter-spacing: .06em;
}

.page-faq .step-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--paper);
  margin: 1rem 0 .5rem;
}

.page-faq .step-text {
  font-size: .93rem;
  line-height: 1.82;
  color: var(--mist);
  margin: 0 0 .8rem;
}

.page-faq .step-note {
  font-size: .84rem;
  line-height: 1.72;
  color: var(--steel);
  margin: 0;
  padding-top: .7rem;
  border-top: 1px dashed var(--faq-rule);
}

@media (min-width: 880px) {
  .page-faq .step-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.1rem;
  }

  .page-faq .step-card:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 2.4rem;
    left: 100%;
    width: 1.1rem;
    height: 2px;
    background: linear-gradient(90deg, rgba(240, 180, 41, .55), rgba(47, 224, 200, .2));
  }
}

/* ---------- 两步找人工 ---------- */

.page-faq .support-band {
  position: relative;
  overflow: hidden;
  padding: clamp(1.4rem, 4vw, 2.3rem);
  border: 1px solid var(--faq-rule-strong);
  border-radius: var(--r-l);
  background:
    radial-gradient(80% 130% at 100% 0%, rgba(47, 224, 200, .12), transparent 62%),
    linear-gradient(180deg, rgba(18, 41, 63, .92), rgba(11, 27, 43, .94));
}

.page-faq .support-band .faq-sub {
  margin-bottom: 1.3rem;
}

.page-faq .support-path {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: .9rem;
  margin: 0;
  padding: 0;
}

.page-faq .path-node {
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-m);
  background: rgba(11, 27, 43, .6);
  transition: border-color .24s var(--ease);
}

.page-faq .path-node:hover {
  border-color: var(--line-cyan);
}

.page-faq .path-badge {
  display: inline-block;
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--cyan);
  padding: .28rem .62rem;
  border: 1px solid var(--line-cyan);
  border-radius: var(--r-pill);
  margin-bottom: .7rem;
}

.page-faq .path-node h3 {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--paper);
  margin: 0 0 .4rem;
}

.page-faq .path-node p {
  font-size: .92rem;
  line-height: 1.82;
  color: var(--mist);
  margin: 0;
}

@media (min-width: 800px) {
  .page-faq .support-path {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem;
  }
}

/* ---------- 桌面端异常 ---------- */

.page-faq .faq-fault-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
}

.page-faq .faq-fault-layout .faq-figure {
  margin-bottom: 0;
}

.page-faq .fault-list {
  display: grid;
  gap: .9rem;
}

.page-faq .fault-item {
  padding: 1.1rem 1.2rem 1.2rem;
  border: 1px solid var(--faq-rule);
  border-left-width: 3px;
  border-left-style: solid;
  border-radius: var(--r-s) var(--r-m) var(--r-m) var(--r-s);
  background: var(--faq-surface);
  transition: transform .24s var(--ease), border-color .24s var(--ease);
}

.page-faq .fault-item:hover {
  transform: translateX(4px);
}

.page-faq .fault-launch {
  border-left-color: var(--amber);
}

.page-faq .fault-network {
  border-left-color: var(--cyan);
}

.page-faq .fault-display {
  border-left-color: var(--steel);
}

.page-faq .fault-update {
  border-left-color: var(--ember);
}

.page-faq .fault-tag {
  display: inline-block;
  font-size: .74rem;
  letter-spacing: .1em;
  padding: .22rem .58rem;
  border-radius: var(--r-pill);
  border: 1px solid currentColor;
}

.page-faq .fault-launch .fault-tag {
  color: var(--amber);
  background: rgba(240, 180, 41, .1);
}

.page-faq .fault-network .fault-tag {
  color: var(--cyan);
  background: rgba(47, 224, 200, .1);
}

.page-faq .fault-display .fault-tag {
  color: var(--steel);
  background: rgba(124, 140, 168, .12);
}

.page-faq .fault-update .fault-tag {
  color: var(--ember);
  background: rgba(224, 138, 60, .12);
}

.page-faq .fault-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
  margin: .7rem 0 0;
}

.page-faq .fault-points {
  margin: .6rem 0 0;
  padding-left: 1.15rem;
  font-size: .92rem;
  line-height: 1.82;
  color: var(--mist);
}

.page-faq .fault-points li {
  margin-bottom: .35rem;
}

.page-faq .fault-points li:last-child {
  margin-bottom: 0;
}

.page-faq .fault-points li::marker {
  color: var(--steel);
}

@media (min-width: 900px) {
  .page-faq .faq-fault-layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 1.6rem;
    align-items: start;
  }
}

/* ---------- 设置面板 ---------- */

.page-faq .settings-panel {
  padding: clamp(1.3rem, 3.6vw, 2.1rem);
  border: 1px solid var(--faq-rule-strong);
  border-radius: var(--r-l);
  background: linear-gradient(155deg, rgba(18, 41, 63, .92), rgba(11, 27, 43, .94));
}

.page-faq .settings-groups {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: .8rem;
  margin: 0;
  padding: 0;
}

.page-faq .settings-group {
  padding: 1rem 1.1rem 1.1rem;
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-m);
  background: rgba(13, 32, 50, .72);
  transition: border-color .24s var(--ease);
}

.page-faq .settings-group:hover {
  border-color: var(--line-cyan);
}

.page-faq .settings-group h3 {
  display: flex;
  align-items: center;
  gap: .55rem;
  font-size: .98rem;
  font-weight: 700;
  color: var(--paper);
  margin: 0 0 .5rem;
}

.page-faq .settings-dot {
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  flex: none;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(47, 224, 200, .14);
}

.page-faq .dot-appearance {
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(240, 180, 41, .16);
}

.page-faq .dot-network {
  background: var(--cyan);
}

.page-faq .dot-notice {
  background: var(--teal);
  box-shadow: 0 0 0 3px rgba(55, 182, 160, .16);
}

.page-faq .dot-data {
  background: var(--steel);
  box-shadow: 0 0 0 3px rgba(124, 140, 168, .16);
}

.page-faq .dot-keys {
  background: var(--ember);
  box-shadow: 0 0 0 3px rgba(224, 138, 60, .16);
}

.page-faq .settings-group p {
  font-size: .9rem;
  line-height: 1.82;
  color: var(--mist);
  margin: 0;
}

@media (min-width: 720px) {
  .page-faq .settings-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1020px) {
  .page-faq .settings-groups {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-accordion {
  display: grid;
  grid-template-columns: 1fr;
  gap: .7rem;
}

.page-faq .faq-qa {
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-m);
  background: var(--faq-surface);
  overflow: hidden;
  transition: border-color .24s var(--ease), background-color .24s var(--ease);
}

.page-faq .faq-qa[open] {
  border-color: var(--line-cyan);
  background: rgba(13, 32, 50, .96);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: .9rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  font-size: .99rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
  list-style: none;
}

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

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

.page-faq .faq-q-text {
  flex: 1;
}

.page-faq .faq-q-mark {
  position: relative;
  flex: none;
  width: 1rem;
  height: 1rem;
  margin-top: .35rem;
}

.page-faq .faq-q-mark::before,
.page-faq .faq-q-mark::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  background: var(--cyan);
  transform: translateY(-50%);
  transition: transform .24s var(--ease);
}

.page-faq .faq-q-mark::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-qa[open] .faq-q-mark::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-faq .faq-qa[open] .faq-q {
  border-bottom: 1px dashed var(--faq-rule);
}

.page-faq .faq-a {
  padding: 1rem 1.15rem 1.15rem;
  font-size: .93rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-a p {
  margin: 0 0 .65rem;
}

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

@media (min-width: 880px) {
  .page-faq .faq-accordion {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .8rem;
    align-items: start;
  }
}

/* ---------- 收尾入口 ---------- */

.page-faq .faq-cta-card {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 2.4rem);
  border: 1px solid var(--line-amber);
  border-radius: var(--r-l);
  background:
    radial-gradient(72% 130% at 0% 0%, rgba(240, 180, 41, .16), transparent 62%),
    linear-gradient(180deg, rgba(18, 41, 63, .96), rgba(11, 27, 43, .96));
}

.page-faq .faq-cta-card .faq-sub {
  margin-bottom: 1.2rem;
}

.page-faq .cta-actions {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin: 0;
  padding: 0;
}

.page-faq .cta-note {
  font-size: .88rem;
  line-height: 1.8;
  color: var(--steel);
  margin: 1.1rem 0 0;
}

/* ---------- 窄屏兜底 ---------- */

@media (max-width: 420px) {
  .page-faq .faq-actions,
  .page-faq .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .page-faq .faq-actions .btn,
  .page-faq .cta-actions .btn {
    width: 100%;
    text-align: center;
  }

  .page-faq .faq-stat-num {
    font-size: 1.3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step-card,
  .page-faq .fault-item,
  .page-faq .faq-qa,
  .page-faq .settings-group,
  .page-faq .path-node {
    transition: none;
  }

  .page-faq .step-card:hover,
  .page-faq .fault-item:hover {
    transform: none;
  }
}