.page-faq {
  --faq-index-w: 232px;
  --faq-line: rgba(28, 53, 96, 0.75);
  --faq-line-soft: rgba(28, 53, 96, 0.45);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 34px 0 32px;
  border-bottom: 1px solid var(--faq-line);
  margin-bottom: 36px;
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--progress);
}

.page-faq .faq-kicker::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--progress);
  opacity: 0.85;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 16px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(28px, 6.2vw, 48px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--bone);
  max-width: 22ch;
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--mist);
}

.page-faq .faq-hero__jump {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-hero__jump a {
  display: inline-flex;
  align-items: center;
  padding: 9px 15px;
  border: 1px solid var(--orbit);
  border-radius: 999px;
  background: rgba(18, 39, 78, 0.65);
  color: var(--mist);
  font-size: 13.5px;
  line-height: 1.2;
  text-decoration: none;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease),
    background 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-faq .faq-hero__jump a:hover,
.page-faq .faq-hero__jump a:focus-visible {
  color: var(--bone);
  border-color: var(--signal);
  background: rgba(255, 107, 53, 0.12);
  transform: translateY(-2px);
}

/* ---------- 左窄右宽布局 ---------- */
.page-faq .faq-layout {
  display: block;
  padding-bottom: 68px;
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }
}

/* ---------- 左侧分类目录 ---------- */
.page-faq .faq-index {
  margin-bottom: 36px;
}

@media (min-width: 960px) {
  .page-faq .faq-index {
    position: sticky;
    top: 28px;
    margin-bottom: 0;
  }
}

.page-faq .faq-index__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--rock);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0 0 0 20px;
  border-left: 1px solid var(--orbit);
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__list a {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.24s var(--ease);
}

.page-faq .faq-index__list a::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 50%;
  width: 7px;
  height: 7px;
  margin-top: -3.5px;
  border-radius: 50%;
  background: var(--orbit);
  box-shadow: 0 0 0 3px var(--space-deep);
  transition: background 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--bone);
}

.page-faq .faq-index__list a:hover::before,
.page-faq .faq-index__list a:focus-visible::before {
  background: var(--progress);
  box-shadow: 0 0 0 3px var(--space-deep), 0 0 12px rgba(62, 193, 211, 0.85);
}

.page-faq .faq-index__code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--progress);
}

.page-faq .faq-index__fig {
  margin: 24px 0 0;
  border: 1px solid var(--orbit);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--space-2);
}

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

/* ---------- 章节骨架 ---------- */
.page-faq .faq-sec {
  scroll-margin-top: 28px;
  padding-bottom: 42px;
  margin-bottom: 42px;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-sec:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-sec__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--rock);
}

.page-faq .faq-sec h2 {
  margin: 10px 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(23px, 4.6vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--bone);
}

.page-faq .faq-sec p {
  margin: 0 0 14px;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--mist);
}

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

.page-faq .faq-sec a:not(.btn) {
  color: var(--progress);
  text-decoration: none;
  border-bottom: 1px solid rgba(62, 193, 211, 0.4);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-sec a:not(.btn):hover,
.page-faq .faq-sec a:not(.btn):focus-visible {
  color: var(--moss);
  border-bottom-color: var(--moss);
}

/* ---------- 注册章节配图 ---------- */
.page-faq .faq-figure {
  margin: 24px 0 0;
  border: 1px solid var(--orbit);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(150deg, var(--space-2), var(--space-deep));
}

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

.page-faq .faq-figure figcaption {
  padding: 12px 18px;
  border-top: 1px solid var(--orbit);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--sand);
}

/* ---------- 三步流程节点 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

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

.page-faq .faq-steps__item {
  position: relative;
  padding: 22px 20px;
  border: 1px solid var(--orbit);
  border-radius: var(--radius);
  background: var(--space-2);
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease);
}

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

@media (min-width: 720px) {
  .page-faq .faq-steps__item:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    right: -16px;
    width: 16px;
    height: 1px;
    background: var(--orbit);
  }
}

.page-faq .faq-steps__num {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--signal);
}

.page-faq .faq-steps__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  color: var(--bone);
}

.page-faq .faq-steps__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-steps__meta {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--progress);
}

/* ---------- 续订周期 ---------- */
.page-faq .faq-cycle {
  display: grid;
  gap: 16px;
  margin: 24px 0;
}

@media (min-width: 720px) {
  .page-faq .faq-cycle {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-cycle__card {
  padding: 22px 20px;
  border: 1px solid var(--orbit);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--space-2), rgba(11, 27, 58, 0.9));
}

.page-faq .faq-cycle__card h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  color: var(--bone);
}

.page-faq .faq-cycle__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 版本选择三卡 ---------- */
.page-faq .faq-pick {
  display: grid;
  gap: 16px;
  margin: 24px 0;
}

@media (min-width: 760px) {
  .page-faq .faq-pick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-pick__card {
  padding: 22px 20px;
  border: 1px solid var(--orbit);
  border-top: 3px solid var(--progress);
  border-radius: var(--radius);
  background: var(--space-2);
}

.page-faq .faq-pick__card:nth-child(1) {
  border-top-color: var(--signal);
}

.page-faq .faq-pick__card:nth-child(2) {
  border-top-color: var(--progress);
}

.page-faq .faq-pick__card:nth-child(3) {
  border-top-color: var(--moss);
}

.page-faq .faq-pick__code {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--rock);
}

.page-faq .faq-pick__card h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  color: var(--bone);
}

.page-faq .faq-pick__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-after {
  margin-top: 0;
}

/* ---------- 问答手风琴 ---------- */
.page-faq .faq-group {
  margin-top: 28px;
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--bone);
}

.page-faq .faq-group__code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  padding: 3px 6px;
  border: 1px solid var(--orbit);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--progress);
}

.page-faq .faq-item {
  margin-bottom: 10px;
  border: 1px solid var(--orbit);
  border-radius: var(--radius-sm);
  background: var(--space-2);
  overflow: hidden;
  transition: border-color 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(62, 193, 211, 0.55);
  box-shadow: inset 3px 0 0 var(--progress);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.65;
  color: var(--bone);
  transition: color 0.2s var(--ease);
}

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

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--progress);
}

.page-faq .faq-item__icon {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 6px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--progress);
  transition: transform 0.24s var(--ease), opacity 0.24s var(--ease);
}

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

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

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

.page-faq .faq-item__body {
  padding: 14px 18px 18px;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-item__body p {
  margin: 0 0 10px;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--mist);
}

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

.page-faq .faq-item__link {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--sand);
}

/* ---------- 联系两条路 ---------- */
.page-faq .faq-ways {
  display: grid;
  gap: 16px;
  margin: 24px 0 0;
}

@media (min-width: 720px) {
  .page-faq .faq-ways {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-ways__card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: 24px 22px;
  border: 1px solid var(--orbit);
  border-radius: var(--radius);
  background: linear-gradient(150deg, var(--space-2), rgba(11, 27, 58, 0.92));
}

.page-faq .faq-ways__card h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  color: var(--bone);
}

.page-faq .faq-ways__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-ways__mail {
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.02em;
  color: var(--progress);
  word-break: break-all;
}

.page-faq .faq-ways__note {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--rock);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-steps__item:hover,
  .page-faq .faq-hero__jump a:hover {
    transform: none;
  }
}