.page-faq {
  background: var(--ink);
  color: var(--porcelain);
}

.page-faq .faq-crumb-sep {
  color: var(--mist);
  padding: 0 6px;
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(40px, 6vw, 76px) 0 clamp(36px, 5vw, 68px);
  background:
    radial-gradient(120% 100% at 88% 0%, rgba(47, 143, 163, 0.18), transparent 62%),
    radial-gradient(90% 70% at 0% 100%, rgba(201, 162, 77, 0.10), transparent 70%),
    var(--ink);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: 0;
  left: 28%;
  right: -14%;
  bottom: -34%;
  height: 82%;
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  transform: skewY(-8deg);
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  align-items: center;
}

.page-faq .faq-hero-copy .eyebrow {
  margin-top: 18px;
}

.page-faq .faq-hero-copy h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 5.4vw, 62px);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: 0.02em;
  margin: 10px 0 0;
}

.page-faq .faq-hero-copy .lede {
  margin-top: 18px;
  max-width: 54ch;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-stats {
  list-style: none;
  margin: clamp(26px, 3.4vw, 36px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
}

.page-faq .faq-stat {
  border-top: 1px solid var(--line);
  padding-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.page-faq .faq-stat .stat-value {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--gold-soft);
  line-height: 1.2;
}

.page-faq .faq-stat .stat-label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--mist);
}

.page-faq .faq-hero-figure {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--line);
  background: var(--lead);
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% 84%, 90% 100%, 0 100%);
}

.page-faq .faq-hero-figure .note {
  font-size: 12px;
  color: var(--mist);
  line-height: 1.6;
}

/* ---------- 四象限 ---------- */
.page-faq .faq-quad {
  scroll-margin-top: 96px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .quad-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .quad-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px 18px;
  text-decoration: none;
  color: inherit;
  background: linear-gradient(180deg, rgba(26, 34, 41, 0.92), rgba(14, 18, 22, 0.94));
  border: 1px solid var(--line-soft);
  transition: border-color var(--base) var(--ease), transform var(--base) var(--ease), background var(--base) var(--ease);
}

.page-faq .quad-card--pc {
  box-shadow: inset 3px 0 0 0 var(--lake);
}

.page-faq .quad-card--ios {
  box-shadow: inset 3px 0 0 0 var(--gold);
}

.page-faq .quad-card:hover,
.page-faq .quad-card:focus-visible {
  border-color: var(--gold);
  transform: translateY(-3px);
}

.page-faq .quad-index {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-faq .quad-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-faq .quad-title {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--porcelain);
}

.page-faq .quad-desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .quad-arrow {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-mono);
  color: var(--gold);
  font-size: 15px;
}

/* ---------- 三步定位 ---------- */
.page-faq .faq-check {
  background: var(--ink-2);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .check-layout {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-faq .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .step:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .step-num {
  font-size: 44px;
  line-height: 0.92;
  font-weight: 700;
  color: var(--lead);
  -webkit-text-stroke: 1.5px var(--gold);
  letter-spacing: 0.04em;
  flex: none;
}

.page-faq .step-body {
  min-width: 0;
}

.page-faq .step-title {
  font-family: var(--font-heading);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  margin: 4px 0 8px;
  color: var(--porcelain);
}

.page-faq .step-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .step-figure {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-faq .step-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--line);
  background: var(--lead);
  object-fit: cover;
}

.page-faq .step-figure .note {
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 问答 ---------- */
.page-faq .qa-layout {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .qa-main {
  min-width: 0;
}

.page-faq .qa-group {
  margin-bottom: clamp(26px, 3.4vw, 40px);
  scroll-margin-top: 100px;
}

.page-faq .qa-group:last-child {
  margin-bottom: 0;
}

.page-faq .qa-group-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-faq .qa-group-head h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  color: var(--porcelain);
}

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

.page-faq .qa-q {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--porcelain);
  transition: color var(--fast) var(--ease);
}

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

.page-faq .qa-q:hover,
.page-faq .qa-q:focus-visible {
  color: var(--gold-soft);
}

.page-faq .qa-q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--gold);
}

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

.page-faq .qa-a {
  padding: 2px 0 18px 16px;
  border-left: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(7, 9, 11, 0.72), transparent 90%);
}

.page-faq .qa-a p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--mist);
}

/* ---------- 粘性帮助卡 ---------- */
.page-faq .qa-aside {
  min-width: 0;
}

.page-faq .stick-card {
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  background: rgba(14, 18, 22, 0.94);
  display: grid;
  gap: 12px;
}

.page-faq .stick-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--porcelain);
}

.page-faq .stick-text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .stick-line {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 0;
  padding-top: 9px;
  border-top: 1px dashed var(--line-soft);
}

.page-faq .stick-label {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .stick-value {
  font-size: 13px;
  color: var(--porcelain);
  overflow-wrap: anywhere;
}

.page-faq .stick-btn {
  justify-self: start;
  margin-top: 4px;
}

/* ---------- 新用户四步 ---------- */
.page-faq .faq-start {
  background: var(--ink-2);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .start-steps {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-faq .start-step {
  background: var(--ink);
  padding: 22px 18px;
  min-width: 0;
}

.page-faq .start-num {
  display: block;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--lake-soft);
  margin-bottom: 8px;
}

.page-faq .start-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  color: var(--porcelain);
}

.page-faq .start-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 错误提示对照 ---------- */
.page-faq .err-list {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .err-item {
  display: grid;
  gap: 9px;
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  background: rgba(14, 18, 22, 0.72);
  min-width: 0;
}

.page-faq .err-code {
  justify-self: start;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--ochre);
  border: 1px solid rgba(184, 94, 47, 0.55);
  padding: 3px 8px;
  line-height: 1.5;
  max-width: 100%;
  overflow-wrap: anywhere;
}

.page-faq .err-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 仍需帮助 ---------- */
.page-faq .faq-help {
  scroll-margin-top: 96px;
  background:
    linear-gradient(180deg, var(--ink) 0%, rgba(14, 18, 22, 0.95) 100%);
}

.page-faq .help-grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-faq .help-main {
  min-width: 0;
}

.page-faq .help-main h2 {
  margin: 10px 0 14px;
}

.page-faq .help-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 58ch;
}

.page-faq .help-list {
  list-style: none;
  margin: 22px 0 26px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .help-list li {
  padding-left: 14px;
  border-left: 1px solid var(--gold);
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .help-list strong {
  color: var(--porcelain);
  font-weight: 600;
}

.page-faq .help-note {
  margin-top: 18px;
  font-size: 12.5px;
  color: var(--mist);
}

.page-faq .help-note a {
  color: var(--lake-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .help-card {
  padding: 22px 20px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  align-self: start;
  min-width: 0;
}

.page-faq .help-card-title {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--gold-soft);
}

.page-faq .help-dl {
  margin: 0;
  display: grid;
  gap: 2px;
}

.page-faq .help-row {
  display: grid;
  gap: 3px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .help-row:last-child {
  border-bottom: 0;
}

.page-faq .help-row dt {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .help-row dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--porcelain);
  overflow-wrap: anywhere;
}

.page-faq .help-card .note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 760px) {
  .page-faq .quad-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .start-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .help-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-faq .check-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-faq .step-num {
    font-size: 48px;
  }
}

@media (min-width: 1100px) {
  .page-faq .quad-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-faq .qa-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
  }

  .page-faq .qa-aside {
    position: sticky;
    top: 96px;
  }
}

@media (max-width: 480px) {
  .page-faq .step {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .page-faq .step-num {
    font-size: 36px;
  }

  .page-faq .faq-hero-figure img {
    clip-path: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .quad-card,
  .page-faq .qa-q {
    transition: none;
  }

  .page-faq .quad-card:hover,
  .page-faq .quad-card:focus-visible {
    transform: none;
  }
}
<<<END>>>