.page-faq {
  --faq-accent: var(--cyan);
  display: block;
  background: var(--void);
  color: var(--warm);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 80% 6%, rgba(53, 240, 208, 0.13), transparent 58%),
    radial-gradient(90% 80% at 4% 98%, rgba(122, 92, 255, 0.16), transparent 62%),
    linear-gradient(168deg, var(--void) 0%, var(--night) 62%, var(--teal) 150%);
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.24;
  z-index: 0;
}

.page-faq .faq-hero__veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(6, 11, 24, 0.5) 0%, rgba(6, 11, 24, 0.8) 58%, var(--void) 100%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 2;
  padding-block: clamp(28px, 4.5vw, 52px) clamp(42px, 6.5vw, 84px);
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  color: var(--line);
}

.page-faq .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

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

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

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  max-width: 20em;
  font-size: clamp(30px, 6vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--warm);
}

.page-faq .faq-hero__lede {
  margin-top: 20px;
  max-width: 62ch;
  color: var(--muted);
  font-size: var(--step1);
  line-height: 1.78;
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__quick li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 152px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(14, 26, 51, 0.62);
  backdrop-filter: blur(8px);
}

.page-faq .faq-hero__quick b {
  font-family: var(--font-mono);
  font-size: var(--step3);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-hero__quick span {
  font-size: var(--step-1);
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 分类切换条 ---------- */
.page-faq .faq-switch {
  position: sticky;
  top: var(--bar-h);
  z-index: 30;
  border-bottom: 1px solid var(--line);
  background: rgba(6, 11, 24, 0.86);
  backdrop-filter: blur(14px);
}

.page-faq .faq-switch__inner {
  display: flex;
  gap: 8px;
  padding-block: 10px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-switch__inner::-webkit-scrollbar { display: none; }

.page-faq .faq-switch__item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(14, 26, 51, 0.6);
  color: var(--muted);
  font-size: var(--step0);
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-switch__item:hover,
.page-faq .faq-switch__item:focus-visible {
  color: var(--warm);
  border-color: rgba(53, 240, 208, 0.55);
  background: rgba(53, 240, 208, 0.09);
  outline: none;
}

.page-faq .faq-switch__idx {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  padding-block: clamp(34px, 5vw, 62px) 0;
  scroll-margin-top: calc(var(--bar-h) + 76px);
}

.page-faq .faq-group--cyan { --group-accent: var(--cyan); }
.page-faq .faq-group--orange { --group-accent: var(--orange); }
.page-faq .faq-group--violet { --group-accent: var(--violet); }

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__idx {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.4vw, 42px);
  font-weight: 700;
  line-height: 1;
  color: var(--group-accent, var(--cyan));
  opacity: 0.9;
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(20px, 3.2vw, 28px);
  font-weight: 800;
  letter-spacing: -0.012em;
  color: var(--warm);
}

.page-faq .faq-group__sub {
  margin: 8px 0 0;
  max-width: 54ch;
  font-size: var(--step0);
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-group__list { display: block; }

/* ---------- 折叠面板 ---------- */
.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(14, 26, 51, 0.5);
  backdrop-filter: blur(10px);
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

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

.page-faq .qa[open] {
  border-color: var(--group-accent, var(--cyan));
  background: var(--night);
  box-shadow: 0 18px 40px -28px rgba(53, 240, 208, 0.55);
}

.page-faq .qa__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 17px 18px;
  cursor: pointer;
  list-style: none;
  font-size: var(--step1);
  font-weight: 700;
  line-height: 1.5;
  color: var(--warm);
}

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

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
  border-radius: var(--radius);
}

.page-faq .qa__q-text { display: block; }

.page-faq .qa__icon {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color 0.22s var(--ease);
}

.page-faq .qa__icon::before,
.page-faq .qa__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 9px;
  height: 1.5px;
  background: var(--muted);
  transform: translate(-50%, -50%);
  transition: transform 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .qa__icon::after { transform: translate(-50%, -50%) rotate(90deg); }

.page-faq .qa[open] .qa__icon { border-color: var(--group-accent, var(--cyan)); }

.page-faq .qa[open] .qa__icon::before,
.page-faq .qa[open] .qa__icon::after { background: var(--group-accent, var(--cyan)); }

.page-faq .qa[open] .qa__icon::after { transform: translate(-50%, -50%) rotate(0deg); }

.page-faq .qa__a {
  padding: 0 18px 20px;
  font-size: var(--step1);
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .qa__a > p { margin: 0 0 12px; }
.page-faq .qa__a > p:last-child { margin-bottom: 0; }
.page-faq .qa__a strong { color: var(--warm); font-weight: 700; }

.page-faq .qa__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, 0.4);
  transition: border-color 0.2s var(--ease);
}

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

.page-faq .qa-steps {
  counter-reset: qastep;
  display: grid;
  gap: 10px;
  margin: 14px 0;
  padding: 0;
  list-style: none;
}

.page-faq .qa-steps li {
  position: relative;
  padding-left: 34px;
  font-size: var(--step0);
  line-height: 1.72;
}

.page-faq .qa-steps li::before {
  counter-increment: qastep;
  content: counter(qastep);
  position: absolute;
  left: 0;
  top: 2px;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid var(--group-accent, var(--cyan));
  border-radius: 50%;
  color: var(--group-accent, var(--cyan));
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
}

/* ---------- 操作路径 ---------- */
.page-faq .faq-path {
  position: relative;
  margin-top: clamp(48px, 7vw, 92px);
  padding-block: clamp(38px, 6vw, 74px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(80% 70% at 90% 0%, rgba(122, 92, 255, 0.17), transparent 62%),
    radial-gradient(70% 60% at 0% 100%, rgba(53, 240, 208, 0.1), transparent 60%),
    linear-gradient(180deg, var(--night) 0%, var(--void) 100%);
  overflow: hidden;
}

.page-faq .faq-path__head {
  display: grid;
  gap: 12px;
  margin-bottom: 28px;
}

.page-faq .faq-path__title {
  margin: 0;
  font-size: clamp(22px, 3.8vw, 36px);
  font-weight: 900;
  letter-spacing: -0.016em;
  color: var(--warm);
}

.page-faq .faq-path__lede {
  margin: 0;
  max-width: 62ch;
  font-size: var(--step1);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-path__figure {
  margin: 0 0 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(6, 11, 24, 0.6);
}

.page-faq .faq-path__figure .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-faq .faq-path__steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: pathstep;
}

.page-faq .faq-path__step {
  position: relative;
  padding: 20px 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(6, 11, 24, 0.62);
  backdrop-filter: blur(8px);
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-faq .faq-path__step:hover {
  border-color: rgba(53, 240, 208, 0.55);
  transform: translateY(-3px);
}

.page-faq .faq-path__step-idx {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-path__step-title {
  margin: 0 0 8px;
  font-size: var(--step2);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--warm);
}

.page-faq .faq-path__step p {
  margin: 0;
  font-size: var(--step0);
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 尾部联系 ---------- */
.page-faq .faq-help {
  padding-block: clamp(44px, 6.5vw, 88px);
}

.page-faq .faq-help__card {
  display: grid;
  gap: 26px;
  padding: clamp(24px, 4vw, 46px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(140deg, rgba(11, 59, 58, 0.55) 0%, rgba(14, 26, 51, 0.9) 62%, rgba(122, 92, 255, 0.16) 140%);
  backdrop-filter: blur(12px);
}

.page-faq .faq-help__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 3.6vw, 32px);
  font-weight: 900;
  letter-spacing: -0.015em;
  color: var(--warm);
}

.page-faq .faq-help__text {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: var(--step1);
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-help__contactblock {
  padding-left: 18px;
  border-left: 2px solid var(--cyan);
}

.page-faq .faq-help__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .faq-help__value {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: var(--step1);
  line-height: 1.5;
  color: var(--cyan);
  word-break: break-all;
}

.page-faq .faq-help__note {
  margin: 12px 0 0;
  font-size: var(--step-1);
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 860px) {
  .page-faq .faq-path__steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-faq .faq-help__card { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); align-items: center; gap: 44px; }
}

@media (min-width: 1024px) {
  .page-faq .faq-path__steps { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-faq .qa__q { padding: 19px 24px; }
  .page-faq .qa__a { padding: 0 24px 22px; }
  .page-faq .faq-group__head { gap: 24px; }
}

@media (max-width: 620px) {
  .page-faq .faq-hero__quick li { flex: 1 1 100%; min-width: 0; }
  .page-faq .qa__q { font-size: var(--step0); }
  .page-faq .faq-switch { top: 0; }
  .page-faq .faq-group { scroll-margin-top: 72px; }
}
<<<END>>>