.page-faq {
  --faq-gap: clamp(1rem, 2.4vw, 1.5rem);
  display: block;
  color: var(--paper);
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.page-faq .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: 0 0 clamp(1.25rem, 3vw, 2rem);
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-faq .breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}

.page-faq .breadcrumbs li:not(:last-child)::after {
  content: "/";
  color: var(--line);
}

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

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  padding-bottom: clamp(2rem, 5vw, 3.25rem);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero h1 {
  margin: .9rem 0 1.25rem;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -.04em;
  line-height: 1.04;
  font-size: clamp(2.15rem, 8vw, 4.4rem);
}

.page-faq .faq-hero-lead {
  max-width: 34ch;
  margin: 0;
  color: var(--mist);
  font-size: clamp(.98rem, 1.6vw, 1.1rem);
  line-height: 1.85;
}

.page-faq .faq-hero-side {
  position: relative;
  display: flex;
  gap: 1rem;
  padding: clamp(1rem, 2.4vw, 1.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(155deg, rgba(61, 232, 255, .12), rgba(11, 23, 48, .72) 52%, rgba(5, 11, 22, .6));
  overflow: hidden;
}

.page-faq .faq-hero-side::after {
  content: "";
  position: absolute;
  inset: auto -20% -60% auto;
  width: 60%;
  height: 120%;
  background: radial-gradient(closest-side, rgba(61, 232, 255, .18), transparent 72%);
  pointer-events: none;
}

.page-faq .faq-hero-side .vertical-note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .65rem;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-faq .hero-stats {
  display: grid;
  gap: .9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .hero-stats li {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  flex-wrap: wrap;
}

.page-faq .hero-stats .mono {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4.6vw, 1.95rem);
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.page-faq .hero-stats span:last-child {
  color: var(--mist);
  font-size: .8125rem;
}

/* ---------- 卡片墙 ---------- */
.page-faq .faq-wall-section {
  padding-top: clamp(2.25rem, 6vw, 3.75rem);
}

.page-faq h2 {
  margin: 0 0 .9rem;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -.035em;
  line-height: 1.12;
  font-size: clamp(1.6rem, 4.4vw, 2.5rem);
}

.page-faq .faq-wall-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: clamp(1.25rem, 3vw, 1.9rem);
}

.page-faq .faq-wall-head h2 {
  margin: 0;
  font-size: clamp(1.35rem, 3.2vw, 1.85rem);
}

.page-faq .faq-filters {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  padding: .35rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(20, 40, 68, .6);
}

.page-faq .faq-filters .filter-btn {
  padding: .45rem .9rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: .8125rem;
  line-height: 1.2;
  cursor: pointer;
  transition: color var(--t) var(--ease), background-color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-faq .faq-filters .filter-btn:hover {
  color: var(--paper);
  border-color: var(--line);
}

.page-faq .faq-filters .filter-btn[aria-pressed="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

.page-faq .faq-wall {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
}

.page-faq .faq-wall > [data-filter-item][hidden] {
  display: none;
}

.page-faq .faq-card {
  position: relative;
  padding: clamp(1.05rem, 2.4vw, 1.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(168deg, rgba(20, 40, 68, .78), rgba(5, 11, 22, .62));
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

.page-faq .faq-card:hover {
  transform: translateY(-2px);
  border-color: rgba(61, 232, 255, .5);
  box-shadow: var(--shadow-float);
}

.page-faq .faq-card--key {
  padding-left: clamp(1.35rem, 3.2vw, 1.9rem);
  border-color: rgba(255, 138, 61, .34);
  background: linear-gradient(168deg, rgba(255, 138, 61, .13), rgba(11, 23, 48, .82) 46%, rgba(5, 11, 22, .7));
}

.page-faq .faq-card--key::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14%;
  bottom: 14%;
  width: 3px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--orange), rgba(255, 138, 61, 0));
}

.page-faq .faq-card--key:hover {
  border-color: rgba(255, 138, 61, .65);
}

.page-faq .faq-code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-faq .faq-card--key .faq-code {
  color: var(--orange);
}

.page-faq .faq-card h3 {
  margin: .6rem 0 .55rem;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.4;
  font-size: clamp(1.02rem, 2.2vw, 1.18rem);
  color: var(--paper);
}

.page-faq .faq-summary {
  margin: 0;
  color: var(--mist);
  font-size: .925rem;
  line-height: 1.8;
}

.page-faq .faq-links {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem .9rem;
  margin-top: .8rem;
}

.page-faq .faq-links a {
  color: var(--link);
  font-size: .8125rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(140, 200, 255, .35);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

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

.page-faq .faq-more {
  margin-top: .9rem;
  padding-top: .75rem;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-more summary {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  color: var(--cyan);
}

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

.page-faq .faq-more summary::after {
  content: "+";
  font-size: .95rem;
  line-height: 1;
}

.page-faq .faq-more[open] summary::after {
  content: "–";
}

.page-faq .faq-more p {
  margin: .7rem 0 0;
  color: var(--mist);
  font-size: .875rem;
  line-height: 1.85;
}

/* ---------- 费用与收费 ---------- */
.page-faq .faq-fee {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  margin-top: clamp(3rem, 7vw, 5rem);
  padding-top: clamp(2rem, 5vw, 3rem);
  border-top: 1px solid var(--line);
}

.page-faq .faq-fee-lead {
  max-width: 42ch;
  margin: 0 0 1.35rem;
  color: var(--mist);
  font-size: .9375rem;
  line-height: 1.85;
}

.page-faq .fee-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: rgba(11, 23, 48, .55);
}

.page-faq .fee-table {
  width: 100%;
  min-width: 420px;
  border-collapse: collapse;
  font-size: .875rem;
}

.page-faq .fee-table th,
.page-faq .fee-table td {
  padding: .8rem 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(41, 64, 90, .8);
  vertical-align: top;
}

.page-faq .fee-table thead th {
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .14em;
  font-weight: 500;
  color: var(--mist);
  background: rgba(20, 40, 68, .7);
}

.page-faq .fee-table tbody th {
  color: var(--paper);
  font-weight: 700;
  white-space: nowrap;
}

.page-faq .fee-table tbody td {
  color: var(--mist);
  line-height: 1.65;
}

.page-faq .fee-table td.mono {
  font-family: var(--font-mono);
  color: var(--orange);
  white-space: nowrap;
}

.page-faq .fee-table tbody tr:last-child th,
.page-faq .fee-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-fee-note {
  margin: 1.1rem 0 0;
  padding-left: .9rem;
  border-left: 2px solid var(--amber);
  color: var(--mist);
  font-size: .84rem;
  line-height: 1.75;
}

.page-faq figure {
  margin: 0;
}

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

.page-faq figcaption {
  margin-top: .6rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .06em;
  color: var(--mist);
}

/* ---------- 设备与登录 ---------- */
.page-faq .faq-device {
  margin-top: clamp(3rem, 7vw, 5rem);
  padding-top: clamp(2rem, 5vw, 3rem);
  border-top: 1px solid var(--line);
}

.page-faq .faq-device-head {
  max-width: 46ch;
}

.page-faq .faq-device-head p {
  margin: 0 0 clamp(1.25rem, 3vw, 1.75rem);
  color: var(--mist);
  font-size: .9375rem;
  line-height: 1.85;
}

.page-faq .faq-device-body {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .faq-paths {
  display: grid;
  grid-template-columns: 1fr;
  gap: .9rem;
}

.page-faq .faq-path {
  position: relative;
  padding: 1.15rem 1.2rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(11, 23, 48, .72);
  overflow: hidden;
}

.page-faq .faq-path::after {
  content: "";
  position: absolute;
  right: -.6rem;
  top: 1.4rem;
  width: 2.6rem;
  height: 2px;
  background: linear-gradient(90deg, currentColor, transparent);
  opacity: .5;
}

.page-faq .faq-path--normal {
  color: var(--mint);
  border-color: rgba(111, 255, 194, .32);
  background: linear-gradient(165deg, rgba(111, 255, 194, .1), rgba(11, 23, 48, .78) 55%);
}

.page-faq .faq-path--check {
  color: var(--amber);
  border-color: rgba(255, 200, 87, .34);
  background: linear-gradient(165deg, rgba(255, 200, 87, .1), rgba(11, 23, 48, .78) 55%);
}

.page-faq .faq-path-code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .16em;
  color: inherit;
}

.page-faq .faq-path h3 {
  margin: .5rem 0 .2rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-path-time {
  margin: 0 0 .6rem;
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 3.2vw, 1.45rem);
  font-weight: 700;
  color: inherit;
}

.page-faq .faq-path p:last-child {
  margin: 0;
  color: var(--mist);
  font-size: .875rem;
  line-height: 1.8;
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-help {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  margin-top: clamp(3rem, 7vw, 5rem);
  padding: clamp(1.4rem, 4vw, 2.6rem);
  border: 1px solid rgba(255, 138, 61, .28);
  border-radius: var(--radius-l);
  background:
    radial-gradient(120% 140% at 88% 0%, rgba(255, 138, 61, .16), transparent 58%),
    linear-gradient(160deg, rgba(20, 40, 68, .82), rgba(5, 11, 22, .88));
}

.page-faq .faq-help-copy p {
  max-width: 44ch;
  color: var(--mist);
  font-size: .9375rem;
  line-height: 1.85;
}

.page-faq .faq-help-list {
  display: grid;
  gap: .65rem;
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help-list li {
  display: flex;
  align-items: baseline;
  gap: .75rem;
  color: var(--mist);
  font-size: .875rem;
  line-height: 1.7;
}

.page-faq .faq-help-list .mono {
  flex: none;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .12em;
  color: var(--orange);
}

.page-faq .faq-help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin: 1.5rem 0 0;
}

.page-faq .faq-help-side {
  padding-left: 1rem;
  border-left: 1px solid rgba(255, 138, 61, .35);
}

.page-faq .faq-help-side-title {
  margin: 0 0 .4rem;
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-faq .faq-help-side-val {
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: clamp(.85rem, 2vw, .95rem);
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-help-side-note {
  margin: 0;
  color: var(--mist);
  font-size: .8125rem;
  line-height: 1.8;
}

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

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

  .page-faq .faq-card--key:nth-of-type(even) {
    margin-top: 1.85rem;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .85fr);
    align-items: end;
  }

  .page-faq .faq-fee {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }

  .page-faq .faq-device-body {
    grid-template-columns: minmax(0, 1fr) minmax(0, .95fr);
    align-items: start;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, .5fr);
    align-items: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-card,
  .page-faq .faq-links a,
  .page-faq .faq-filters .filter-btn {
    transition: none;
  }

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