.page-faq {
  --faq-ink-soft: #3E5470;
  --faq-rail-w: 264px;
  background: var(--c-silver);
  color: var(--c-ink);
}

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

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  background: var(--grad-night);
  color: var(--c-white);
  padding: calc(var(--header-h) + 26px) 0 50px;
  border-bottom: 2px solid var(--c-red);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(46, 74, 102, 0.4) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(46, 74, 102, 0.4) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: 0.5;
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumb {
  margin: 0 0 20px;
}

.page-faq .faq-hero .breadcrumb a,
.page-faq .faq-hero .breadcrumb li,
.page-faq .faq-hero .breadcrumb span {
  color: rgba(232, 236, 241, 0.7);
}

.page-faq .faq-hero .breadcrumb a {
  color: var(--c-cyan);
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumb a:hover {
  text-decoration: underline;
}

.page-faq .faq-hero .eyebrow {
  color: var(--c-cyan);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 20ch;
  font-size: clamp(28px, 7vw, 50px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(232, 236, 241, 0.82);
}

.page-faq .faq-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

/* ============ 三步上手 ============ */
.page-faq .faq-steps {
  background: var(--c-ink);
  color: var(--c-white);
  padding: 52px 0 58px;
}

.page-faq .faq-steps .eyebrow {
  color: var(--c-cyan);
}

.page-faq .faq-steps .section-title {
  margin: 8px 0 0;
  color: var(--c-white);
}

.page-faq .faq-steps-grid {
  display: grid;
  gap: 28px;
  margin-top: 30px;
}

.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .step-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px;
  background: var(--c-ink-2);
  border: 2px solid var(--c-line);
  box-shadow: var(--shadow-hard-dark);
}

.page-faq .step-num {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--c-white);
  background: var(--c-red);
  border: 2px solid var(--c-red-deep);
  padding: 8px 10px;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.45);
}

.page-faq .step-title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--c-white);
}

.page-faq .step-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(232, 236, 241, 0.8);
}

.page-faq .step-link {
  color: var(--c-cyan);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 199, 0.55);
}

.page-faq .step-link:hover {
  border-bottom-color: var(--c-cyan);
}

.page-faq .step-figure {
  margin: 0;
  background: var(--c-ink-2);
  border: 2px solid var(--c-line);
  box-shadow: var(--shadow-hard-dark);
}

.page-faq .step-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-faq .step-figure figcaption {
  padding: 12px 14px;
  border-top: 2px solid var(--c-line);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--c-steel);
}

/* ============ 问题索引与折叠答案 ============ */
.page-faq .faq-index {
  background: var(--c-silver);
  padding: 52px 0 68px;
}

.page-faq .faq-index .section-title {
  margin: 8px 0 0;
  color: var(--c-ink);
}

.page-faq .faq-index-lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-cols {
  display: grid;
  gap: 26px;
  margin-top: 28px;
}

.page-faq .faq-rail {
  padding: 18px;
  background: var(--c-white);
  border: 2px solid var(--c-ink);
  box-shadow: 6px 6px 0 rgba(11, 27, 43, 0.12);
}

.page-faq .rail-title {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--c-steel);
}

.page-faq .rail-group + .rail-group {
  margin-top: 16px;
  padding-top: 15px;
  border-top: 1px solid rgba(11, 27, 43, 0.14);
}

.page-faq .rail-label {
  display: inline-block;
  margin: 0 0 8px;
  padding-bottom: 4px;
  border-bottom: 2px solid var(--c-red);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-red);
}

.page-faq .rail-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .rail-link {
  display: block;
  padding: 9px 10px 9px 12px;
  border-left: 3px solid transparent;
  font-size: 14px;
  line-height: 1.5;
  color: var(--c-ink);
  text-decoration: none;
  transition: border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.page-faq .rail-link:hover,
.page-faq .rail-link:focus-visible {
  border-left-color: var(--c-red);
  background: var(--c-silver);
  color: var(--c-red-deep);
}

.page-faq .faq-list {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page-faq .qa {
  background: var(--c-white);
  border: 2px solid var(--c-ink);
  box-shadow: 6px 6px 0 rgba(11, 27, 43, 0.12);
  scroll-margin-top: calc(var(--header-h) + 20px);
  transition: opacity 0.18s ease, box-shadow 0.18s ease;
}

.page-faq .qa[data-dimmed] {
  opacity: 0.2;
}

.page-faq .qa[open] {
  box-shadow: 8px 8px 0 rgba(200, 16, 46, 0.16);
}

.page-faq .qa-q {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 15px 18px;
  border-bottom: 2px solid var(--c-ink);
  font-size: 16px;
  font-weight: 800;
  line-height: 1.55;
  color: var(--c-ink);
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa-q::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin: 8px 0 0 auto;
  border-right: 2px solid var(--c-red);
  border-bottom: 2px solid var(--c-red);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.page-faq .qa[open] .qa-q::after {
  transform: rotate(135deg);
  margin-top: 11px;
}

.page-faq .qa-tag {
  flex: 0 0 auto;
  margin-top: 1px;
}

.page-faq .qa-a {
  padding: 16px 18px 20px;
  background: var(--c-silver);
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

.page-faq .qa-a p + p {
  margin-top: 10px;
}

.page-faq .qa-link {
  color: var(--c-red);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--c-red);
}

.page-faq .qa-link:hover {
  color: var(--c-red-deep);
  border-bottom-color: var(--c-red-deep);
}

/* ============ 额度状态带 ============ */
.page-faq .faq-quota {
  position: relative;
  background: var(--c-ink-2);
  color: var(--c-white);
  padding: 62px 0 58px;
}

.page-faq .faq-quota-cut {
  position: absolute;
  top: -26px;
  left: 0;
  width: 100%;
  height: 26px;
  background: var(--c-ink-2);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

.page-faq .quota-panel {
  background: rgba(11, 27, 43, 0.55);
  border: 2px solid var(--c-line);
  box-shadow: var(--shadow-hard-dark);
  overflow: hidden;
}

.page-faq .quota-media img {
  display: block;
  width: 100%;
  aspect-ratio: 7 / 3;
  object-fit: cover;
  opacity: 0.6;
}

.page-faq .quota-body {
  padding: 24px 20px 28px;
  border-top: 2px solid var(--c-line);
}

.page-faq .quota-body .eyebrow {
  color: var(--c-cyan);
}

.page-faq .quota-body .section-title {
  margin: 8px 0 0;
  color: var(--c-white);
}

.page-faq .quota-lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(232, 236, 241, 0.8);
}

.page-faq .quota-meter {
  max-width: 680px;
  margin-top: 24px;
}

.page-faq .quota-track {
  position: relative;
  height: 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid var(--c-line);
  overflow: hidden;
}

.page-faq .quota-fill {
  display: block;
  width: 64%;
  height: 100%;
  background: linear-gradient(90deg, rgba(0, 229, 199, 0.32), var(--c-cyan));
  transform-origin: left center;
  animation: faq-quota-fill 0.9s ease-out both;
}

@keyframes faq-quota-fill {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

.page-faq .quota-ticks {
  display: flex;
  justify-content: space-between;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--c-steel);
}

.page-faq .quota-sub {
  margin: 30px 0 0;
  font-size: 17px;
  font-weight: 800;
  color: var(--c-white);
}

.page-faq .quota-ledger {
  display: grid;
  gap: 14px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .quota-ledger li {
  padding: 8px 0 8px 14px;
  border-left: 3px solid var(--c-red);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(232, 236, 241, 0.82);
}

.page-faq .quota-ledger b {
  display: block;
  margin-bottom: 3px;
  font-size: 15px;
  font-weight: 800;
  color: var(--c-white);
}

/* ============ 联系提示 ============ */
.page-faq .faq-help {
  background: var(--c-ink);
  padding: 44px 0 64px;
}

.page-faq .help-panel {
  padding: 28px 20px 32px;
  background: var(--c-ink-2);
  border: 2px solid var(--c-line);
  border-top: 6px solid var(--c-red);
  box-shadow: var(--shadow-hard-dark);
}

.page-faq .help-panel .eyebrow {
  color: var(--c-cyan);
}

.page-faq .help-panel .section-title {
  margin: 8px 0 0;
  color: var(--c-white);
}

.page-faq .help-copy p {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(232, 236, 241, 0.8);
}

.page-faq .help-channels {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .help-channels li {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  background: rgba(11, 27, 43, 0.5);
  border: 2px solid var(--c-line);
}

.page-faq .help-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--c-cyan);
}

.page-faq .help-value {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--c-white);
  word-break: break-all;
}

.page-faq .help-panel .btn {
  margin-top: 24px;
}

/* ============ 桌面布局 ============ */
@media (min-width: 720px) {
  .page-faq .quota-body {
    padding: 32px 34px 36px;
  }

  .page-faq .quota-ledger {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 30px;
  }

  .page-faq .help-panel {
    padding: 38px 40px 42px;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: calc(var(--header-h) + 40px) 0 60px;
  }

  .page-faq .faq-steps {
    padding: 64px 0 70px;
  }

  .page-faq .faq-steps-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .step-num {
    font-size: 32px;
  }

  .page-faq .faq-index {
    padding: 64px 0 78px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-cols {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 18px);
    max-height: calc(100vh - var(--header-h) - 48px);
    overflow-y: auto;
  }

  .page-faq .faq-quota {
    padding: 72px 0 66px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .quota-fill {
    animation: none;
    transform: none;
  }

  .page-faq .qa-q::after,
  .page-faq .qa,
  .page-faq .rail-link {
    transition: none;
  }
}
<<<END>>>