.page-faq {
  --faq-accent: var(--green);
  --faq-section-gap: clamp(40px, 6vw, 88px);
  --faq-sticky-top: 108px;
}

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

.page-faq [data-section] {
  scroll-margin-top: var(--faq-sticky-top);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(36px, 6vw, 84px) 0 clamp(26px, 4vw, 46px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 196, 106, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 196, 106, 0.055) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.75), transparent 82%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.75), transparent 82%);
}

.page-faq .faq-hero .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(34px, 6.4vw, 66px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--fg);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  line-height: 1.9;
  color: var(--silver);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 34px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding-left: 14px;
  border-left: 2px solid var(--green);
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
}

.page-faq .faq-hero__label {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--silver);
}

/* ---------- 主体分栏 ---------- */

.page-faq .faq-body {
  padding: clamp(30px, 5vw, 62px) 0;
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
}

@media (min-width: 960px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 232px minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 左索引 ---------- */

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 6px 12px 0;
  border-left: 2px solid transparent;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--speed) var(--ease),
              border-color var(--speed) var(--ease),
              padding-left var(--speed) var(--ease);
}

.page-faq .faq-index__list a:hover {
  color: var(--fg);
  border-left-color: var(--line-strong);
  padding-left: 10px;
}

.page-faq .faq-index__list a[aria-current="true"] {
  color: var(--fg);
  border-left-color: var(--green);
  padding-left: 10px;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--stone);
}

@media (min-width: 960px) {
  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky-top);
  }
}

/* ---------- 问题分组 ---------- */

.page-faq .faq-content {
  display: grid;
  gap: var(--faq-section-gap);
}

.page-faq .faq-group {
  --accent: var(--green);
}

.page-faq .faq-group--version {
  --accent: var(--amber);
}

.page-faq .faq-group--rules {
  --accent: var(--green);
}

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

.page-faq .faq-group__head {
  position: relative;
  padding-left: 16px;
}

.page-faq .faq-group__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 10px;
  width: 2px;
  border-radius: 1px;
  background: var(--accent);
}

.page-faq .faq-group__title {
  margin: 8px 0 0;
  font-size: clamp(21px, 2.7vw, 29px);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--fg);
}

.page-faq .faq-group__intro {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--stone);
}

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

/* ---------- 手风琴 ---------- */

.page-faq .faq-list {
  margin-top: clamp(20px, 3vw, 32px);
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 14px;
  width: 100%;
  padding: 18px 4px;
  border: 0;
  background: none;
  color: var(--fg);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: color var(--speed) var(--ease);
}

.page-faq .faq-item__q:hover {
  color: var(--accent);
}

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

.page-faq .faq-item__num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--stone);
}

.page-faq .faq-item__text {
  font-size: clamp(15.5px, 1.7vw, 17.5px);
  font-weight: 700;
  line-height: 1.6;
}

.page-faq .faq-item__sign {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 7px;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--accent);
  transition: transform var(--speed) var(--ease), opacity var(--speed) var(--ease);
}

.page-faq .faq-item__sign::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__sign::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item__q[aria-expanded="true"] .faq-item__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.26s var(--ease);
}

.page-faq .faq-item__panel[data-open] {
  grid-template-rows: 1fr;
}

.page-faq .faq-item__body {
  min-height: 0;
  overflow: hidden;
}

.page-faq .faq-item__body p {
  max-width: 64ch;
  margin: 0;
  padding: 0 4px 22px 30px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--silver);
}

.page-faq .faq-code {
  display: inline-block;
  padding: 1px 6px;
  border: 1px solid rgba(245, 176, 65, 0.24);
  border-radius: var(--radius-sm);
  background: var(--amber-soft);
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--amber);
  white-space: nowrap;
}

/* ---------- 三步流程 ---------- */

.page-faq .faq-steps {
  padding: clamp(42px, 6vw, 82px) 0;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(0, 196, 106, 0.04), transparent 62%);
}

.page-faq .faq-steps__head {
  max-width: 62ch;
}

.page-faq .faq-steps__title {
  margin: 8px 0 0;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--fg);
}

.page-faq .faq-steps__intro {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--stone);
}

.page-faq .faq-steps__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 720px) {
  .page-faq .faq-steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}

.page-faq .faq-step {
  position: relative;
  padding: 20px 18px 24px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--panel);
  transition: transform var(--speed) var(--ease), border-color var(--speed) var(--ease);
}

.page-faq .faq-step:hover {
  transform: translateY(-2px);
  border-color: var(--green);
}

@media (min-width: 720px) {
  .page-faq .faq-step:not(:last-child)::after {
    content: "";
    position: absolute;
    right: -15px;
    top: 50%;
    width: 8px;
    height: 8px;
    border-top: 2px solid var(--green);
    border-right: 2px solid var(--green);
    transform: translateY(-50%) rotate(45deg);
  }
}

.page-faq .faq-step__num {
  display: inline-block;
  padding: 3px 11px;
  border: 1px solid rgba(0, 196, 106, 0.34);
  border-radius: 999px;
  background: var(--green-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--green);
}

.page-faq .faq-step__title {
  margin: 14px 0 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--fg);
}

.page-faq .faq-step__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--stone);
}

.page-faq .faq-steps__figure {
  margin: clamp(24px, 4vw, 42px) 0 0;
}

/* ---------- 联系客服 ---------- */

.page-faq .faq-help {
  padding: clamp(42px, 6vw, 82px) 0 clamp(56px, 8vw, 100px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
}

@media (min-width: 880px) {
  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
}

.page-faq .faq-help__title {
  margin: 8px 0 0;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--fg);
}

.page-faq .faq-help__lead {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--silver);
}

.page-faq .faq-help__note {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 13px;
  line-height: 1.85;
  color: var(--stone);
}

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

.page-faq .faq-help__card {
  display: grid;
  gap: 18px;
  border-left: 2px solid var(--green);
}

.page-faq .faq-help__row {
  display: grid;
  gap: 5px;
}

.page-faq .faq-help__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-help__value {
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--fg);
  word-break: break-word;
}

.page-faq .faq-help__value--mono {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.01em;
}
<<<END>>>