.page-faq {
  --faq-line: rgba(170, 184, 198, .18);
  --faq-sticky: 96px;
  background:
    radial-gradient(1000px 520px at 88% -8%, rgba(243, 162, 75, .14), transparent 62%),
    radial-gradient(760px 480px at -6% 24%, rgba(79, 209, 197, .10), transparent 66%),
    var(--night);
  color: var(--paper);
  font-family: var(--font-body);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
}

/* 面包屑 */
.page-faq .faq-crumb-bar {
  padding-top: clamp(1rem, 3vw, 1.6rem);
  padding-bottom: .4rem;
}

/* 首屏 */
.page-faq .faq-hero {
  padding-top: clamp(1rem, 3vw, 2rem);
  padding-bottom: clamp(1.6rem, 4vw, 2.8rem);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(1.4rem, 3.5vw, 2.6rem);
  align-items: center;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-route);
  font-weight: 700;
  letter-spacing: .04em;
  font-size: var(--step-h1);
  line-height: 1.06;
  margin: .55rem 0 0;
  color: var(--paper);
  text-wrap: balance;
}

.page-faq .faq-hero h1 em {
  font-style: normal;
  color: var(--lamp);
}

.page-faq .faq-lede {
  margin: 1rem 0 0;
  font-size: clamp(.96rem, 1.4vw, 1.06rem);
  line-height: 1.8;
  color: rgba(244, 235, 221, .82);
  max-width: 58ch;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: clamp(1.1rem, 3vw, 1.6rem);
}

.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(96px, 1fr));
  gap: .8rem;
  margin: clamp(1.2rem, 3vw, 1.8rem) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-stat {
  border-left: 2px solid var(--copper);
  padding-left: .7rem;
}

.page-faq .faq-stat b {
  display: block;
  font-family: var(--font-route);
  font-size: 1.45rem;
  letter-spacing: .04em;
  color: var(--amber);
  line-height: 1.2;
}

.page-faq .faq-stat span {
  display: block;
  margin-top: .15rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-faq .faq-hero-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--faq-line);
  background: rgba(6, 17, 28, .6);
  box-shadow: 0 24px 60px -40px rgba(243, 162, 75, .6);
}

.page-faq .media-frame {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(6, 17, 28, .6);
}

.page-faq .media-frame img,
.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-faq .media-caption {
  margin: 0;
  padding: .85rem 1rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--mist);
  border-top: 1px solid var(--faq-line);
}

/* 分栏 */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
  margin-top: clamp(.6rem, 2vw, 1.4rem);
}

/* 左侧分类 */
.page-faq .faq-index {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(19, 44, 68, .95), rgba(11, 27, 43, .9));
  padding: clamp(.9rem, 2.5vw, 1.2rem);
}

.page-faq .faq-index-title {
  margin: 0 0 .25rem;
  font-family: var(--font-route);
  font-size: 1.1rem;
  letter-spacing: .06em;
  color: var(--paper);
}

.page-faq .faq-index-sub {
  margin: 0 0 .9rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0 0 .35rem;
  display: flex;
  gap: .45rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index-list li {
  flex: 0 0 auto;
}

.page-faq .faq-index-item {
  display: flex;
  align-items: center;
  gap: .45rem;
  padding: .5rem .85rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-pill);
  font-size: .84rem;
  line-height: 1.5;
  color: rgba(244, 235, 221, .86);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-index-dot {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--mist);
}

.page-faq .faq-index-flag {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: .6rem;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-faq a.faq-index-item:hover,
.page-faq a.faq-index-item:focus-visible {
  border-color: var(--lamp);
  background: rgba(243, 162, 75, .12);
  color: var(--amber);
}

.page-faq a.faq-index-item:hover .faq-index-dot,
.page-faq a.faq-index-item:focus-visible .faq-index-dot {
  background: var(--lamp);
}

/* 内容块 */
.page-faq .faq-block {
  border-top: 1px solid var(--faq-line);
  padding-top: clamp(1.4rem, 3.5vw, 2.2rem);
  margin-top: clamp(1.4rem, 3.5vw, 2.2rem);
}

.page-faq .faq-main > .faq-block:first-child {
  border-top: 0;
  margin-top: 0;
  padding-top: 0;
}

.page-faq .faq-block-head {
  display: grid;
  gap: .45rem;
  margin-bottom: clamp(1rem, 2.5vw, 1.4rem);
}

.page-faq .faq-block-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--neon);
}

.page-faq .faq-block h2 {
  margin: 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: var(--step-h2);
  line-height: 1.28;
  color: var(--paper);
}

.page-faq .faq-lead {
  margin: .2rem 0 0;
  font-size: .96rem;
  line-height: 1.78;
  color: rgba(244, 235, 221, .76);
  max-width: 62ch;
}

.page-faq p a.faq-link,
.page-faq .accordion-panel a.faq-link,
.page-faq li a.faq-link {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq a.faq-link:hover {
  color: var(--amber);
}

.page-faq .faq-note {
  margin: 1rem 0 0;
  font-size: .9rem;
  line-height: 1.75;
  color: rgba(244, 235, 221, .7);
}

/* 步骤卡 */
.page-faq .faq-devices {
  display: grid;
  gap: .9rem;
}

.page-faq .faq-device {
  border-radius: var(--radius-lg);
  border: 1px solid var(--faq-line);
  background: rgba(19, 44, 68, .55);
  padding: clamp(1rem, 2.5vw, 1.35rem);
}

.page-faq .faq-device--phone {
  border-color: rgba(243, 162, 75, .42);
  background: linear-gradient(165deg, rgba(243, 162, 75, .13), rgba(19, 44, 68, .62) 58%);
}

.page-faq .faq-devices + .faq-device {
  margin-top: .9rem;
}

.page-faq .faq-device-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .6rem;
  margin-bottom: .9rem;
}

.page-faq .faq-device-count {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--amber);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .7rem;
  align-items: start;
  counter-increment: faqstep;
  font-size: .92rem;
  line-height: 1.72;
  color: rgba(244, 235, 221, .86);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  width: 1.6rem;
  height: 1.6rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--lamp);
  color: var(--night);
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 600;
}

.page-faq .faq-device--desk .faq-steps li::before {
  background: rgba(170, 184, 198, .3);
  color: var(--paper);
}

/* 对照 */
.page-faq .faq-compare {
  display: grid;
  gap: .8rem;
  margin-top: 1.1rem;
}

.page-faq .faq-compare-col {
  border-radius: var(--radius-md);
  padding: .9rem 1rem;
  border: 1px dashed rgba(170, 184, 198, .3);
}

.page-faq .faq-compare-col strong {
  display: block;
  margin-bottom: .4rem;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--mist);
}

.page-faq .faq-compare-col p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.72;
  color: rgba(244, 235, 221, .8);
}

.page-faq .faq-compare-col--new {
  border-style: solid;
  border-color: rgba(79, 209, 197, .45);
  background: rgba(79, 209, 197, .07);
}

.page-faq .faq-compare-col--new strong {
  color: var(--neon);
}

/* 数字条 */
.page-faq .faq-figures {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
  gap: .7rem;
  margin-top: 1.2rem;
}

.page-faq .faq-figure {
  background: rgba(6, 17, 28, .6);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  padding: .8rem .9rem;
}

.page-faq .faq-figure b {
  display: block;
  font-family: var(--font-route);
  font-size: 1.55rem;
  letter-spacing: .03em;
  color: var(--neon);
  line-height: 1.2;
}

.page-faq .faq-figure span {
  display: block;
  margin-top: .2rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  color: var(--mist);
}

/* 路径图 */
.page-faq .faq-map-wrap {
  margin-top: 1.2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--faq-line);
  background: linear-gradient(180deg, rgba(6, 17, 28, .78), rgba(11, 27, 43, .92));
  padding: clamp(.8rem, 2.5vw, 1.4rem);
}

.page-faq .faq-map-scroll {
  overflow-x: auto;
  padding-bottom: .3rem;
}

.page-faq .faq-map {
  display: block;
  width: 100%;
  min-width: 640px;
  height: auto;
}

.page-faq .faq-map-node rect {
  fill: rgba(19, 44, 68, .92);
  stroke: rgba(170, 184, 198, .35);
  stroke-width: 1.2;
  transition: stroke .2s var(--ease), fill .2s var(--ease);
}

.page-faq .faq-map-node text {
  fill: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
}

.page-faq .faq-map-node--end rect {
  fill: rgba(79, 209, 197, .14);
  stroke: rgba(79, 209, 197, .5);
}

.page-faq .faq-map-line {
  stroke: rgba(243, 162, 75, .55);
  stroke-width: 1.6;
  stroke-dasharray: 5 6;
  transition: stroke .2s var(--ease);
}

.page-faq .faq-map-row:hover .faq-map-node rect {
  stroke: var(--lamp);
  fill: rgba(243, 162, 75, .16);
}

.page-faq .faq-map-row:hover .faq-map-node--end rect {
  stroke: var(--neon);
  fill: rgba(79, 209, 197, .22);
}

.page-faq .faq-map-row:hover .faq-map-line {
  stroke: var(--amber);
  stroke-dasharray: none;
}

.page-faq .faq-map-hint {
  margin: .7rem 0 0;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-faq .faq-figure-wide {
  margin-top: clamp(1rem, 2.5vw, 1.5rem);
  border: 1px solid var(--faq-line);
}

/* 手风琴 */
.page-faq .faq-acc {
  margin-top: 1.1rem;
  display: grid;
  gap: .55rem;
}

.page-faq .faq-acc h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
}

.page-faq .accordion-item {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: rgba(19, 44, 68, .42);
  overflow: hidden;
}

.page-faq .accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .85rem 1rem;
  border: 0;
  background: none;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: .94rem;
  font-weight: 500;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
  transition: color .2s var(--ease), background .2s var(--ease);
}

.page-faq .accordion-trigger:hover {
  color: var(--amber);
}

.page-faq .accordion-trigger[aria-expanded="true"] {
  color: var(--amber);
  background: rgba(243, 162, 75, .08);
}

.page-faq .accordion-icon {
  flex: 0 0 auto;
  transition: transform .2s var(--ease);
}

.page-faq .accordion-trigger[aria-expanded="true"] .accordion-icon {
  transform: rotate(45deg);
}

.page-faq .accordion-panel {
  padding: 0 1rem .95rem;
  font-size: .9rem;
  line-height: 1.76;
  color: rgba(244, 235, 221, .8);
}

.page-faq .accordion-panel p {
  margin: 0;
}

/* 人工支持 */
.page-faq .faq-support {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(243, 162, 75, .32);
  background: linear-gradient(150deg, rgba(243, 162, 75, .14), rgba(19, 44, 68, .82) 62%);
  padding: clamp(1.1rem, 3vw, 1.8rem);
}

.page-faq .faq-support-grid {
  display: grid;
  gap: clamp(1rem, 3vw, 1.8rem);
}

.page-faq .faq-support-list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .5rem;
}

.page-faq .faq-support-list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .92rem;
  line-height: 1.7;
  color: rgba(244, 235, 221, .84);
}

.page-faq .faq-support-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lamp);
}

.page-faq .faq-contact-card {
  border-radius: var(--radius-md);
  border: 1px solid rgba(244, 235, 221, .16);
  background: rgba(6, 17, 28, .58);
  padding: clamp(.9rem, 2.5vw, 1.2rem);
}

.page-faq .faq-contact-title {
  margin: 0 0 .5rem;
  font-family: var(--font-route);
  font-size: 1rem;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-faq .faq-contact-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem;
  padding: .55rem 0;
  border-bottom: 1px dashed var(--faq-line);
  font-family: var(--font-mono);
  font-size: .82rem;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-contact-line:last-of-type {
  border-bottom: 0;
}

.page-faq .faq-contact-line b {
  flex: 0 0 auto;
  font-weight: 500;
  font-size: .68rem;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-faq .faq-copy {
  margin-left: auto;
  padding: .25rem .7rem;
  border: 1px solid rgba(79, 209, 197, .45);
  border-radius: var(--radius-pill);
  background: rgba(79, 209, 197, .1);
  color: var(--neon);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .04em;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-copy:hover {
  background: rgba(79, 209, 197, .2);
}

.page-faq .faq-copy[data-copied="true"] {
  color: var(--amber);
  border-color: var(--amber);
  background: rgba(243, 162, 75, .16);
}

.page-faq .faq-contact-foot {
  margin: .8rem 0 0;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--mist);
}

/* 断点 */
@media (min-width: 700px) {
  .page-faq .faq-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .faq-devices + .faq-device {
    margin-top: 1rem;
  }
}

@media (min-width: 820px) {
  .page-faq .faq-support-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

  .page-faq .faq-layout {
    grid-template-columns: 268px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky);
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    gap: .25rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index-list li {
    flex: 1 1 auto;
  }

  .page-faq .faq-index-item {
    white-space: normal;
    padding: .55rem .8rem;
  }

  .page-faq .faq-index-flag {
    margin-left: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-item,
  .page-faq .accordion-trigger,
  .page-faq .accordion-icon,
  .page-faq .faq-copy,
  .page-faq .faq-map-node rect,
  .page-faq .faq-map-line {
    transition: none;
  }
}
<<<END>>>