.page-faq {
  --faq-radius: 20px;
  --faq-gap: clamp(18px, 3.2vw, 32px);
  --faq-cyan-soft: rgba(25, 245, 197, .12);
  --faq-violet-soft: rgba(168, 85, 247, .14);
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(100px, 12vw, 148px) 0 clamp(44px, 6vw, 72px);
  overflow: hidden;
  background:
    radial-gradient(820px 460px at 8% -8%, rgba(25, 245, 197, .16), transparent 68%),
    radial-gradient(720px 420px at 94% -4%, rgba(168, 85, 247, .18), transparent 64%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(180deg, rgba(234, 244, 255, .045) 0 1px, transparent 1px 5px);
  opacity: .5;
}

.page-faq .faq-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
}

.page-faq .faq-crumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: rgba(159, 179, 200, .5);
}

.page-faq .faq-crumb a {
  color: var(--muted);
  text-decoration: none;
}

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

.page-faq .faq-crumb [aria-current="page"] {
  color: var(--text);
}

.page-faq .faq-title {
  margin: 10px 0 18px;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.14;
  letter-spacing: -.01em;
  font-weight: 800;
  text-shadow: 0 0 28px rgba(25, 245, 197, .22);
}

.page-faq .faq-lead {
  max-width: 62ch;
  margin: 0 0 24px;
  color: var(--muted);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
}

.page-faq .faq-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 26px;
}

.page-faq .faq-quick a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px 9px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: var(--glass);
  color: var(--text);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .2s, background .2s, color .2s;
}

.page-faq .faq-quick a span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: .04em;
}

.page-faq .faq-quick a:hover {
  border-color: var(--line-cyan);
  background: var(--faq-cyan-soft);
  color: #fff;
}

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

.page-faq .faq-hero-figure {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-cyan);
  background: var(--panel);
  box-shadow: var(--shadow-lg);
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-hero-figure .scanline {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(180deg, rgba(25, 245, 197, .08) 0 1px, transparent 1px 6px);
}

.page-faq .faq-hero-figure figcaption {
  padding: 14px 18px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: rgba(11, 23, 40, .88);
}

/* ---------- 章节头 ---------- */
.page-faq .faq-section-head {
  max-width: 64ch;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-faq .faq-section-head h2 {
  margin: 8px 0 10px;
  font-size: clamp(23px, 3.2vw, 34px);
  line-height: 1.24;
}

.page-faq .faq-section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 四步概览 ---------- */
.page-faq .faq-overview-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-ov-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 20px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(168, 85, 247, .12), rgba(14, 27, 46, .92) 58%);
  transition: border-color .2s, transform .2s;
}

.page-faq .faq-ov-card:hover {
  border-color: var(--line-violet);
  transform: translateY(-2px);
}

.page-faq .faq-ov-num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-faq .faq-ov-card h3 {
  margin: 0;
  font-size: 17px;
}

.page-faq .faq-ov-card p {
  flex: 1;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.68;
}

.page-faq .faq-ov-link {
  align-self: flex-start;
  font-size: 13px;
  color: var(--violet-text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .faq-ov-link:hover {
  border-bottom-color: currentColor;
}

/* ---------- 四步流程 ---------- */
.page-faq .faq-flow {
  position: relative;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(700px 380px at 100% 0%, rgba(168, 85, 247, .12), transparent 62%),
    radial-gradient(620px 340px at 0% 100%, rgba(25, 245, 197, .09), transparent 60%),
    linear-gradient(180deg, rgba(11, 23, 40, .78), rgba(7, 17, 31, .92));
}

.page-faq .faq-flow-grid {
  display: grid;
  gap: clamp(22px, 3vw, 38px);
}

.page-faq .faq-toc {
  padding: 18px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(11, 23, 40, .78);
  backdrop-filter: blur(8px);
}

.page-faq .faq-toc-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-toc-list {
  display: flex;
  flex-direction: row;
  gap: 8px;
  list-style: none;
  margin: 0 0 14px;
  padding: 0 0 6px;
  overflow-x: auto;
}

.page-faq .faq-toc-list .toc-link {
  display: block;
  flex: 0 0 auto;
  padding: 8px 12px;
  border-radius: 8px;
  border-left: 2px solid transparent;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  transition: color .18s, background .18s, border-color .18s;
}

.page-faq .faq-toc-list .toc-link:hover {
  color: var(--text);
  background: var(--glass);
}

.page-faq .faq-toc-list .toc-link.is-active {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: var(--faq-cyan-soft);
}

.page-faq .faq-toc-note {
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-toc-note p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.7;
}

.page-faq .faq-toc-note a {
  color: var(--blue);
  font-size: 13px;
  text-decoration: none;
}

.page-faq .faq-toc-note a:hover {
  text-decoration: underline;
}

.page-faq .faq-flow-body h2 {
  margin: 0 0 12px;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.24;
}

.page-faq .faq-flow-intro {
  max-width: 64ch;
  margin: 0 0 22px;
  color: var(--muted);
  line-height: 1.78;
}

.page-faq .faq-flow-figure {
  margin: 0 0 clamp(20px, 3vw, 28px);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line-violet);
  background: var(--panel-deep);
}

.page-faq .faq-flow-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-faq .faq-step {
  margin-bottom: 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(14, 27, 46, .82);
  overflow: hidden;
  scroll-margin-top: 104px;
  transition: border-color .2s, background .2s;
}

.page-faq .faq-step[open] {
  border-color: var(--line-cyan);
  background: rgba(14, 27, 46, .96);
}

.page-faq .faq-step summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.page-faq .faq-step summary::-webkit-details-marker,
.page-faq .faq-step summary::marker {
  display: none;
  content: "";
}

.page-faq .faq-step summary::after {
  content: "＋";
  flex-shrink: 0;
  font-size: 17px;
  line-height: 1;
  color: var(--cyan);
  transition: transform .2s;
}

.page-faq .faq-step[open] summary::after {
  transform: rotate(45deg);
}

.page-faq .faq-step-num {
  flex-shrink: 0;
  padding: 5px 9px;
  border-radius: 8px;
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
}

.page-faq .faq-step-title {
  flex: 1;
  min-width: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-step-body {
  padding: 2px 18px 18px;
}

.page-faq .faq-step-dl {
  display: grid;
  gap: 14px;
  margin: 0;
}

.page-faq .faq-step-dl > div {
  display: grid;
  gap: 4px;
  padding-left: 14px;
  border-left: 2px solid rgba(25, 245, 197, .35);
}

.page-faq .faq-step-dl dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--violet-text);
}

.page-faq .faq-step-dl dd {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.75;
}

/* ---------- 六类问题 ---------- */
.page-faq .faq-cat-list {
  display: grid;
  gap: 16px;
  align-items: start;
}

.page-faq .faq-cat {
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: linear-gradient(170deg, rgba(14, 27, 46, .96), rgba(11, 23, 40, .86));
  scroll-margin-top: 108px;
}

.page-faq .faq-cat-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding-bottom: 14px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-cat-icon {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--line-violet);
  background: var(--faq-violet-soft);
  color: var(--violet-text);
}

.page-faq .faq-cat-icon svg {
  display: block;
  width: 20px;
  height: 20px;
}

.page-faq .faq-cat-head h3 {
  margin: 0 0 4px;
  font-size: 17px;
}

.page-faq .faq-cat-head p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.page-faq .faq-cat-count {
  margin-left: auto;
  flex-shrink: 0;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  white-space: nowrap;
}

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

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

.page-faq .faq-qa summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 4px;
  cursor: pointer;
  list-style: none;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--text);
  transition: color .18s;
}

.page-faq .faq-qa summary::-webkit-details-marker,
.page-faq .faq-qa summary::marker {
  display: none;
  content: "";
}

.page-faq .faq-qa summary::after {
  content: "";
  margin-left: auto;
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform .2s;
}

.page-faq .faq-qa[open] summary::after {
  transform: rotate(-135deg);
}

.page-faq .faq-qa summary:hover {
  color: var(--cyan);
}

.page-faq .faq-qa p {
  margin: 0 4px 14px;
  padding-left: 12px;
  border-left: 2px solid rgba(168, 85, 247, .42);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.78;
}

/* ---------- 操作路径 ---------- */
.page-faq .faq-hot {
  background:
    radial-gradient(640px 320px at 0% 0%, rgba(245, 199, 106, .09), transparent 62%),
    linear-gradient(180deg, rgba(11, 23, 40, .55), rgba(7, 17, 31, .9));
  border-bottom: 1px solid var(--line);
}

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

.page-faq .faq-hot-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(14, 27, 46, .82);
  transition: border-color .2s;
}

.page-faq .faq-hot-item:hover {
  border-color: rgba(245, 199, 106, .36);
}

.page-faq .faq-hot-num {
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1.1;
  color: var(--gold);
}

.page-faq .faq-hot-body h3 {
  margin: 0 0 8px;
  font-size: 16px;
  line-height: 1.45;
}

.page-faq .faq-hot-body p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.page-faq .faq-hot-body a {
  font-size: 13px;
  color: var(--blue);
  text-decoration: none;
}

.page-faq .faq-hot-body a:hover {
  text-decoration: underline;
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-support-grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

.page-faq .faq-support-main h2 {
  margin: 8px 0 12px;
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.24;
}

.page-faq .faq-support-lead {
  max-width: 58ch;
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.78;
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-contact-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: var(--glass);
}

.page-faq .faq-contact-list span {
  min-width: 78px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-faq .faq-contact-list strong {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  word-break: break-all;
}

.page-faq .faq-support-note {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.72;
}

.page-faq .faq-support-card {
  padding: 22px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(245, 199, 106, .36);
  background: linear-gradient(165deg, rgba(245, 199, 106, .13), rgba(14, 27, 46, .94) 62%);
}

.page-faq .faq-support-card h3 {
  margin: 0 0 6px;
  font-size: 17px;
  color: var(--gold);
}

.page-faq .faq-support-card > p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.7;
}

.page-faq .faq-support-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-support-card li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text);
}

.page-faq .faq-support-card li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: .52em;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  border: 1px solid var(--gold);
  background: rgba(245, 199, 106, .18);
}

/* ---------- 返回顶部 ---------- */
.page-faq .to-top {
  position: fixed;
  right: 16px;
  bottom: 84px;
  z-index: 40;
  display: none;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line-cyan);
  background: rgba(11, 23, 40, .94);
  color: var(--cyan);
  font-size: 17px;
  line-height: 1;
  cursor: pointer;
  backdrop-filter: blur(6px);
}

.page-faq .to-top.is-visible {
  display: grid;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-overview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-faq .faq-cat-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-support-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

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

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-flow-grid {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-toc-list {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-toc-list .toc-link {
    white-space: normal;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-overview-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .to-top {
    right: 28px;
    bottom: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-ov-card,
  .page-faq .faq-quick a,
  .page-faq .faq-step,
  .page-faq .faq-qa summary::after,
  .page-faq .faq-step summary::after {
    transition: none;
  }

  .page-faq .faq-ov-card:hover {
    transform: none;
  }
}
<<<END>>>