.page-faq {
  background: var(--ink);
  color: var(--white);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(20px, 4vw, 40px) clamp(30px, 5vw, 60px);
  background:
    radial-gradient(115% 90% at 92% 0%, rgba(53, 240, 224, 0.16), transparent 62%),
    radial-gradient(90% 80% at 0% 100%, rgba(177, 75, 255, 0.18), transparent 58%),
    var(--ink);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(30px, 6vw, 58px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 13em;
}

.page-faq .faq-hero .lede {
  margin-top: clamp(14px, 2vw, 20px);
  max-width: 34em;
  color: var(--muted);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-faq .faq-hero__note {
  margin-top: 16px;
  padding-left: 14px;
  border-left: 2px solid var(--orange);
  color: var(--white);
  font-size: 14px;
  line-height: 1.75;
  max-width: 32em;
}

.page-faq .faq-hero__media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
}

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

/* ---------- 主题切换 + 问题列表 ---------- */
.page-faq .faq-body {
  padding-block: clamp(30px, 5vw, 60px) clamp(36px, 6vw, 76px);
  background: var(--ink-2);
}

.page-faq .faq-body__title {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-size: clamp(19px, 2.4vw, 24px);
  letter-spacing: -0.01em;
  font-weight: 700;
  color: var(--white);
}

.page-faq .faq-segbar {
  padding-bottom: clamp(16px, 2.4vw, 22px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-seg {
  display: flex;
  gap: 6px;
  padding: 5px;
  border-radius: 999px;
  background: var(--ink-3);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  max-width: 100%;
}

.page-faq .faq-seg::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-seg__btn {
  position: relative;
  flex: 0 0 auto;
  padding: 10px 18px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.005em;
  line-height: 1.4;
  white-space: nowrap;
  cursor: pointer;
  transition: color 240ms var(--ease), background-color 240ms var(--ease);
}

.page-faq .faq-seg__btn::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 5px;
  width: 0;
  height: 2px;
  border-radius: 99px;
  background: var(--ink);
  transform: translateX(-50%);
  transition: width 240ms var(--ease);
}

.page-faq .faq-seg__btn:hover {
  color: var(--white);
}

.page-faq .faq-seg__btn[aria-selected="true"] {
  background: var(--cyan);
  color: var(--ink);
}

.page-faq .faq-seg__btn[aria-selected="true"]:hover {
  color: var(--ink);
}

.page-faq .faq-seg__btn[aria-selected="true"]::after {
  width: 18px;
}

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

.page-faq .faq-panel {
  padding-top: clamp(24px, 3.6vw, 42px);
  animation: faq-panel-in 320ms var(--ease) both;
}

.page-faq .faq-panel[hidden] {
  display: none;
}

@keyframes faq-panel-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq .faq-panel__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-size: clamp(20px, 2.8vw, 27px);
  letter-spacing: -0.015em;
  font-weight: 700;
}

.page-faq .faq-panel__title::before {
  content: "";
  flex: 0 0 auto;
  width: 26px;
  height: 3px;
  border-radius: 99px;
  background: var(--cyan);
}

.page-faq .faq-panel__intro {
  margin: 10px 0 0;
  max-width: 36em;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-list {
  margin-top: clamp(18px, 3vw, 28px);
}

.page-faq .faq-item {
  border-top: 1px solid var(--line);
  transition: background-color 240ms var(--ease), box-shadow 240ms var(--ease);
}

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

.page-faq .faq-item[open] {
  box-shadow: inset 2px 0 0 var(--cyan);
  background: linear-gradient(90deg, rgba(53, 240, 224, 0.08), transparent 52%);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 18px);
  padding: clamp(16px, 2.2vw, 22px) clamp(8px, 1.6vw, 16px) clamp(16px, 2.2vw, 22px) clamp(12px, 2vw, 20px);
  list-style: none;
  cursor: pointer;
  transition: background-color 200ms var(--ease);
}

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

.page-faq .faq-item__q:hover {
  background: rgba(242, 245, 255, 0.04);
}

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

.page-faq .faq-item__no {
  flex: 0 0 auto;
  min-width: 1.8em;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  opacity: 0.9;
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: -0.005em;
}

.page-faq .faq-item__icon {
  position: relative;
  flex: 0 0 auto;
  align-self: center;
  width: 18px;
  height: 18px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
  transition: transform 240ms var(--ease), opacity 240ms var(--ease);
}

.page-faq .faq-item__icon::before {
  transform: translateY(-50%);
}

.page-faq .faq-item__icon::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: translateY(-50%) rotate(0deg);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 clamp(8px, 1.6vw, 16px) clamp(18px, 2.4vw, 24px) clamp(30px, 5vw, 58px);
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 36em;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 224, 0.4);
}

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

/* ---------- 状态图例 ---------- */
.page-faq .faq-legend {
  list-style: none;
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  padding: clamp(14px, 2vw, 20px);
  display: grid;
  gap: 12px;
  border-radius: var(--radius-sm);
  background: var(--ink-3);
}

.page-faq .faq-legend__item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-legend__item strong {
  color: var(--white);
  font-weight: 600;
}

.page-faq .faq-legend__dot {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--orange);
}

.page-faq .faq-legend .status {
  flex: 0 0 auto;
}

/* ---------- 下载章节配图 ---------- */
.page-faq .faq-figure {
  margin: clamp(26px, 4vw, 40px) 0 0;
}

.page-faq .faq-figure .media {
  max-width: 640px;
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-figure figcaption {
  margin-top: 12px;
  max-width: 40em;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 客服区 ---------- */
.page-faq .faq-help {
  padding-block: clamp(36px, 6vw, 84px);
  background:
    radial-gradient(85% 120% at 100% 0%, rgba(255, 106, 43, 0.16), transparent 62%),
    radial-gradient(70% 90% at 0% 100%, rgba(53, 240, 224, 0.1), transparent 60%),
    var(--ink);
}

.page-faq .faq-help__inner {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-faq .faq-help__title {
  margin: 12px 0 0;
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 16em;
}

.page-faq .faq-help__lede {
  margin: 14px 0 0;
  max-width: 34em;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-help__list {
  list-style: none;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  max-width: 34em;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 26px;
  color: var(--white);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-help__card {
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: var(--ink-2);
  padding: clamp(20px, 4vw, 30px);
}

.page-faq .faq-help__row + .faq-help__row {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-help__key {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-help__val {
  margin: 6px 0 0;
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--cyan);
  word-break: break-word;
}

.page-faq .faq-help__val--addr {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 400;
  color: var(--white);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-seg {
    display: inline-flex;
  }

  .page-faq .faq-legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-faq .faq-legend__item {
    align-items: flex-start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: end;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
    align-items: start;
  }

  .page-faq .faq-figure {
    display: grid;
    grid-template-columns: minmax(0, 560px) minmax(0, 1fr);
    gap: 26px;
    align-items: center;
  }

  .page-faq .faq-figure figcaption {
    margin-top: 0;
    max-width: 26em;
  }
}

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

  .page-faq .faq-seg__btn,
  .page-faq .faq-seg__btn::after,
  .page-faq .faq-item,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after {
    transition: none;
  }
}
<<<END>>>