.page-faq {
  --faq-hair: rgba(63, 224, 208, .16);
  --faq-hair-strong: rgba(63, 224, 208, .4);
  --faq-panel: rgba(18, 28, 51, .74);
  --faq-deep: rgba(6, 10, 20, .72);
  --faq-cut: 18px;
  padding-bottom: clamp(56px, 8vw, 108px);
  background:
    radial-gradient(760px 380px at 6% 0%, rgba(63, 224, 208, .13), transparent 62%),
    radial-gradient(620px 340px at 98% 12%, rgba(255, 138, 61, .08), transparent 64%);
}

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

@media (min-width: 1080px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 208px;
    column-gap: 48px;
  }
}

.page-faq .faq-main {
  min-width: 0;
}

/* ---------- 页首 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: 28px 0 0 20px;
  margin-bottom: clamp(36px, 6vw, 64px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 0;
  top: 30px;
  bottom: 6px;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), rgba(63, 224, 208, 0));
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-size: clamp(2.2rem, 5.6vw, 3.6rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-hero__tag {
  margin: 14px 0 0;
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--cyan);
  word-break: break-word;
}

.page-faq .faq-hero__lede {
  margin-top: 18px;
  max-width: 62ch;
}

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

.page-faq .faq-hero__quick a {
  display: inline-block;
  padding: 8px 14px;
  font-size: .84rem;
  color: var(--paper);
  text-decoration: none;
  background: rgba(18, 28, 51, .7);
  border: 1px solid var(--faq-hair);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-hero__quick a:hover {
  color: var(--cyan);
  border-color: var(--faq-hair-strong);
  transform: translateY(-2px);
}

/* ---------- 路径查询 ---------- */

.page-faq .faq-section {
  scroll-margin-top: 110px;
}

.page-faq .faq-path {
  margin-top: 26px;
  padding: 20px 14px 10px;
  background: linear-gradient(135deg, rgba(18, 28, 51, .92), rgba(6, 10, 20, .68));
  border: 1px solid var(--faq-hair);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.page-faq .faq-path-svg {
  display: block;
  width: 100%;
  max-width: 880px;
  height: auto;
  margin: 0 auto;
}

.page-faq .faq-node circle {
  fill: #121C33;
  stroke: rgba(63, 224, 208, .5);
  stroke-width: 1.5;
  transition: fill var(--dur) var(--ease), stroke var(--dur) var(--ease);
}

.page-faq .faq-node__num {
  fill: var(--paper);
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  text-anchor: middle;
}

.page-faq .faq-node__label {
  fill: var(--mist);
  font-size: 15px;
  text-anchor: middle;
}

.page-faq .faq-node:hover circle,
.page-faq .faq-node:focus-visible circle {
  fill: rgba(63, 224, 208, .18);
  stroke: var(--cyan);
}

.page-faq .faq-node:hover .faq-node__label,
.page-faq .faq-node:focus-visible .faq-node__label {
  fill: var(--cyan);
}

.page-faq .faq-node:focus-visible {
  outline: none;
}

.page-faq .faq-steps {
  display: grid;
  gap: 14px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 760px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-faq .faq-step {
  position: relative;
  padding: 20px 20px 20px 60px;
  background: var(--faq-panel);
  border: 1px solid var(--faq-hair);
  scroll-margin-top: 120px;
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, var(--faq-cut) 100%, 0 calc(100% - var(--faq-cut)));
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-step:hover,
.page-faq .faq-step:target {
  transform: translateY(-3px);
  border-color: var(--faq-hair-strong);
  background: rgba(27, 42, 74, .8);
}

.page-faq .faq-step__num {
  position: absolute;
  left: 20px;
  top: 22px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: .06em;
}

.page-faq .faq-step__title {
  margin: 0;
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-step__text {
  margin: 10px 0 0;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 图片 ---------- */

.page-faq .faq-figure {
  margin: 28px 0 0;
  padding: 0;
  background: var(--faq-panel);
  border: 1px solid var(--faq-hair);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

.page-faq .faq-figure--domains {
  margin-top: clamp(40px, 6vw, 68px);
}

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

.page-faq .faq-figure figcaption {
  padding: 13px 18px 15px;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--mist);
  border-top: 1px dashed var(--faq-hair);
}

/* ---------- 问题组 ---------- */

.page-faq .qa-group {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(38px, 6vw, 62px);
  padding-top: 30px;
  border-top: 1px dashed var(--faq-hair);
  scroll-margin-top: 110px;
}

@media (min-width: 860px) {
  .page-faq .qa-group {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 0 26px;
  }
}

.page-faq .qa-group__index {
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .04em;
  color: rgba(63, 224, 208, .32);
  transition: color var(--dur) var(--ease);
}

.page-faq .qa-group:has(.qa[open]) .qa-group__index {
  color: var(--cyan);
}

.page-faq .qa-group__body {
  min-width: 0;
}

.page-faq .qa-group__title {
  margin: 0;
  font-size: clamp(1.35rem, 2.6vw, 1.7rem);
  font-weight: 700;
  color: var(--paper);
}

.page-faq .qa-group__desc {
  margin: 8px 0 20px;
  font-size: .95rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .qa-list {
  display: grid;
  gap: 10px;
}

/* ---------- 折叠问答 ---------- */

.page-faq .qa {
  background: var(--faq-deep);
  border: 1px solid var(--faq-hair);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .qa:hover {
  border-color: var(--faq-hair-strong);
}

.page-faq .qa[open] {
  background: rgba(18, 28, 51, .82);
  border-color: var(--faq-hair-strong);
}

.page-faq .qa__q {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 17px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
  transition: color var(--dur) var(--ease);
}

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

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

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

.page-faq .qa__mark {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 4px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .qa__mark::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .qa__mark::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-faq .qa[open] .qa__mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .qa__a {
  padding: 0 20px 20px 48px;
  font-size: .95rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .qa__a > p {
  margin: 0 0 10px;
}

.page-faq .qa__a > p:last-child {
  margin-bottom: 0;
}

.page-faq .qa__a strong {
  color: var(--paper);
}

.page-faq .qa__steps {
  counter-reset: qa-step;
  display: grid;
  gap: 9px;
  margin: 4px 0 12px;
  padding: 0;
  list-style: none;
}

.page-faq .qa__steps li {
  position: relative;
  padding-left: 30px;
  counter-increment: qa-step;
}

.page-faq .qa__steps li::before {
  content: counter(qa-step);
  position: absolute;
  left: 0;
  top: 3px;
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--amber);
  border: 1px dashed rgba(255, 138, 61, .5);
  border-radius: 4px;
}

.page-faq .qa__link {
  margin-top: 12px;
}

.page-faq .qa__link a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 224, 208, .38);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

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

.page-faq .qa__link a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 收尾 ---------- */

.page-faq .faq-next {
  margin-top: clamp(42px, 6vw, 70px);
  padding: clamp(26px, 4vw, 42px);
  scroll-margin-top: 110px;
  background: linear-gradient(150deg, rgba(63, 224, 208, .12), rgba(255, 138, 61, .07) 62%, rgba(6, 10, 20, .5));
  border: 1px solid var(--faq-hair);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 30px 100%, 0 calc(100% - 30px));
}

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

.page-faq .faq-checklist li {
  position: relative;
  padding-left: 46px;
  font-size: .95rem;
  line-height: 1.7;
  color: var(--paper);
}

.page-faq .faq-checklist .mono {
  position: absolute;
  left: 0;
  top: 2px;
  font-size: .78rem;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: .06em;
}

.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 悬浮目录 ---------- */

.page-faq .toc {
  display: none;
}

@media (min-width: 1080px) {
  .page-faq .toc {
    display: block;
    position: sticky;
    top: 96px;
    padding: 18px 16px 16px;
    background: rgba(6, 10, 20, .72);
    border: 1px solid var(--faq-hair);
    clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  }
}

.page-faq .toc__title {
  margin: 0 0 12px;
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-faq .toc__list {
  display: grid;
  gap: 8px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-faq .toc__link {
  display: block;
  padding-left: 12px;
  font-size: .84rem;
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .toc__link:hover,
.page-faq .toc__link:focus-visible {
  color: var(--cyan);
  border-left-color: var(--cyan);
}

.page-faq .toc__top {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .76rem;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 138, 61, .5);
}

.page-faq .toc__top:hover,
.page-faq .toc__top:focus-visible {
  color: var(--amber-soft);
  border-bottom-color: var(--amber-soft);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .qa,
  .page-faq .faq-hero__quick a,
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after {
    transition: none;
  }

  .page-faq .faq-step:hover,
  .page-faq .faq-step:target,
  .page-faq .faq-hero__quick a:hover {
    transform: none;
  }
}
<<<END>>>