.page-faq {
  --faq-index-w: 246px;
  --faq-hero-block: linear-gradient(135deg, rgba(34, 224, 210, .18), rgba(124, 92, 255, .12) 52%, rgba(255, 122, 41, .16));
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4.5vw, 54px) 0 clamp(44px, 6vw, 84px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -12%;
  bottom: 6%;
  width: min(620px, 78vw);
  height: min(360px, 46vw);
  background: var(--faq-hero-block);
  clip-path: polygon(20% 0, 100% 0, 80% 100%, 0 100%);
  filter: blur(3px);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-faq .faq-hero__copy {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-faq .faq-hero__copy .breadcrumbs {
  margin-bottom: 4px;
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(32px, 6.2vw, 62px);
  line-height: 1.12;
  letter-spacing: .05em;
  color: var(--text);
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 52ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--text-muted);
}

.page-faq .faq-hero__quick {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-quick-link {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--text-muted);
  text-decoration: none;
  transition: color .25s var(--ease), border-color .25s var(--ease), background-color .25s var(--ease);
}

.page-faq .faq-quick-link:hover,
.page-faq .faq-quick-link:focus-visible {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-hero__figure {
  align-self: start;
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 4vw, 56px);
}

.page-faq .faq-index {
  align-self: start;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding-bottom: 6px;
}

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

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: rgba(12, 20, 36, .6);
  color: var(--text-muted);
  font-size: 14px;
  text-decoration: none;
  transition: color .24s var(--ease), border-color .24s var(--ease), background-color .24s var(--ease);
}

.page-faq .faq-index__link .data-num {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--violet);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--text);
  border-color: var(--cyan);
  background: rgba(34, 224, 210, .08);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-stream {
  display: flex;
  flex-direction: column;
  gap: clamp(52px, 7vw, 104px);
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 24px);
  border-top: 1px solid var(--line);
  padding-top: clamp(20px, 3vw, 34px);
}

.page-faq .faq-group__head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.22;
  letter-spacing: .04em;
  color: var(--text);
  max-width: 24ch;
}

.page-faq .faq-group__lead {
  margin: 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-muted);
}

.page-faq .faq-note {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--orange);
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-muted);
  max-width: 60ch;
}

/* ---------- 三步登录 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .steps__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: rgba(12, 20, 36, .72);
  box-shadow: 0 2px 6px rgba(5, 7, 14, .5);
}

.page-faq .steps__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-900);
  background: var(--cyan);
  clip-path: polygon(18% 0, 100% 0, 82% 100%, 0 100%);
}

.page-faq .steps__item:nth-child(2) .steps__num {
  background: var(--violet);
  color: var(--text);
}

.page-faq .steps__item:nth-child(3) .steps__num {
  background: var(--orange);
}

.page-faq .steps__label {
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--text);
}

.page-faq .steps-svg {
  display: block;
  width: 100%;
  max-width: 320px;
  height: 24px;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .steps-svg__line {
  stroke: var(--line);
  stroke-width: 1;
  fill: none;
}

.page-faq .steps-svg__node--cyan { fill: var(--cyan); }
.page-faq .steps-svg__node--violet { fill: var(--violet); }
.page-faq .steps-svg__node--orange { fill: var(--orange); }

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
}

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

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  transition: color .24s var(--ease);
}

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

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

.page-faq .qa__q {
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.6;
  color: var(--text);
  transition: color .24s var(--ease);
}

.page-faq .qa__mark {
  position: relative;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin-top: 4px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1.5px;
  background: var(--text-muted);
  transition: transform .3s var(--ease), background-color .3s var(--ease);
}

.page-faq .qa__mark::after {
  transform: rotate(90deg);
}

.page-faq .qa[open] .qa__mark::before {
  background: var(--orange);
}

.page-faq .qa[open] .qa__mark::after {
  transform: rotate(0deg);
  background: var(--orange);
}

.page-faq .qa__body {
  padding: 0 0 20px 16px;
  border-left: 1px solid rgba(34, 224, 210, .4);
  margin-left: 2px;
  animation: faq-open .32s var(--ease) both;
}

.page-faq .qa__body p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

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

@keyframes faq-open {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq .faq-group--wide .faq-figure {
  margin: 0 0 clamp(20px, 3vw, 30px);
}

/* ---------- 对照表 ---------- */
.page-faq .compare-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: rgba(12, 20, 36, .6);
}

.page-faq .compare-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-faq .compare-table__caption {
  text-align: left;
  padding: 14px 16px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.page-faq .compare-table th,
.page-faq .compare-table td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  line-height: 1.7;
}

.page-faq .compare-table thead th {
  background: var(--starwhite);
  color: var(--ink-on-light);
  font-weight: 500;
  letter-spacing: .06em;
  border-bottom-color: transparent;
}

.page-faq .compare-table tbody th {
  color: var(--text);
  font-weight: 400;
  white-space: nowrap;
}

.page-faq .compare-table tbody td {
  color: var(--text-muted);
}

.page-faq .compare-table tbody tr:hover th,
.page-faq .compare-table tbody tr:hover td {
  background: rgba(34, 224, 210, .06);
  color: var(--text);
}

.page-faq .compare-table tbody tr:last-child th,
.page-faq .compare-table tbody tr:last-child td {
  border-bottom: none;
}

.page-faq .compare-table thead th:nth-child(2) {
  box-shadow: inset 0 -2px 0 var(--cyan);
}

.page-faq .compare-table thead th:nth-child(3) {
  box-shadow: inset 0 -2px 0 var(--orange);
}

/* ---------- 联系面板 ---------- */
.page-faq .faq-contact {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: clamp(20px, 3vw, 32px);
}

.page-faq .faq-contact__list {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-contact__row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.page-faq .faq-contact__row dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
}

.page-faq .faq-contact__row a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 210, .4);
}

.page-faq .faq-contact__row a:hover,
.page-faq .faq-contact__row a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-faq .faq-contact__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
  max-width: 56ch;
}

.page-faq .faq-contact .btn {
  align-self: flex-start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-contact__row {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    overflow-x: visible;
    gap: 2px;
    padding-bottom: 0;
  }

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

  .page-faq .faq-index__link {
    display: flex;
    width: 100%;
    padding: 10px 12px;
    border-color: transparent;
    border-left: 2px solid transparent;
    background: transparent;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--cyan);
    background: rgba(34, 224, 210, .07);
  }
}

@media (min-width: 1200px) {
  .page-faq {
    --faq-index-w: 270px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__body {
    animation: none;
  }

  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .qa__q,
  .page-faq .faq-index__link,
  .page-faq .faq-quick-link {
    transition: none;
  }
}
<<<END>>>