.page-faq {
  --faq-line: var(--grid);
  --faq-card: var(--panel);
  --faq-gap: clamp(14px, 2vw, 20px);
  padding-bottom: clamp(56px, 9vw, 120px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(16px, 3vw, 36px) 0 clamp(28px, 4vw, 52px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero__title {
  margin: 18px 0 0;
}

.page-faq .faq-hero__lead {
  max-width: 64ch;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.8;
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

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

/* ---------- 骨架：索引 + 问答 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 56px);
  padding-top: clamp(30px, 4vw, 56px);
}

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

.page-faq .faq-index__caption {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--aurora);
  text-transform: uppercase;
}

.page-faq .faq-index__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

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

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-index__list a .mono {
  color: var(--lime);
  font-size: 11px;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--white);
  border-color: var(--aurora);
  background: rgba(47, 227, 198, 0.08);
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  position: relative;
  padding: clamp(36px, 5vw, 64px) 0;
  border-top: 1px solid var(--faq-line);
  scroll-margin-top: 88px;
}

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 56px;
  height: 2px;
  background: linear-gradient(90deg, var(--aurora), var(--glow));
}

.page-faq .faq-group__head {
  margin-bottom: clamp(22px, 3vw, 32px);
}

.page-faq .faq-group__index {
  display: block;
  color: var(--lime);
  font-size: 13px;
  letter-spacing: 0.18em;
}

.page-faq .faq-group__title {
  margin: 12px 0 0;
  color: var(--white);
  font-size: clamp(22px, 3.2vw, 32px);
  font-weight: 600;
  line-height: 1.25;
}

.page-faq .faq-group__lead {
  max-width: 64ch;
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

/* ---------- 三步 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: var(--faq-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  padding: 22px 20px 24px;
  background: var(--faq-card);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-step:hover {
  transform: translateY(-4px);
  border-color: var(--aurora);
}

.page-faq .faq-step__icon {
  display: block;
  color: var(--aurora);
}

.page-faq .faq-step__num {
  display: block;
  margin-top: 16px;
  color: var(--aurora-soft);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-faq .faq-step__title {
  margin: 10px 0 0;
  color: var(--white);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
}

.page-faq .faq-step__body {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: clamp(26px, 4vw, 40px) 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  object-fit: cover;
  background: var(--panel);
}

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

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  margin-bottom: 12px;
  background: var(--faq-card);
  border: 1px solid var(--faq-line);
  border-left: 4px solid var(--aurora);
  border-radius: var(--radius);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-item:hover {
  transform: translateY(-4px);
}

.page-faq .faq-item--aurora {
  border-left-color: var(--aurora);
}

.page-faq .faq-item--amber {
  border-left-color: var(--amber);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  color: var(--white);
  font-size: 16.5px;
  font-weight: 500;
  line-height: 1.55;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item__mark {
  flex: 0 0 auto;
  color: var(--lime);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding-top: 3px;
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item > summary::after {
  flex: 0 0 auto;
  margin-left: 6px;
  color: var(--aurora);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
  content: "+";
}

.page-faq .faq-item[open] > summary::after {
  content: "—";
  color: var(--amber);
}

.page-faq .faq-item__a {
  padding: 0 20px 20px 52px;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.8;
}

.page-faq .faq-item__a p {
  margin: 0;
}

.page-faq .faq-item--amber[open] {
  border-left-color: var(--amber);
}

/* ---------- 标签找回 ---------- */
.page-faq .faq-tips {
  display: grid;
  gap: var(--faq-gap);
  margin: clamp(26px, 4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
}

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

.page-faq .faq-tip__title {
  margin: 0;
  color: var(--white);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
}

.page-faq .faq-tip p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 使用记录 ---------- */
.page-faq .faq-facts {
  display: grid;
  gap: var(--faq-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-fact {
  padding: 18px 0 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-fact__num {
  display: block;
  color: var(--lime);
  font-size: 22px;
  letter-spacing: 0.02em;
}

.page-faq .faq-fact__title {
  margin: 12px 0 0;
  color: var(--white);
  font-size: 17px;
  font-weight: 600;
}

.page-faq .faq-fact p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .faq-note {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 16px 18px;
  background: rgba(255, 122, 51, 0.08);
  border-left: 3px solid var(--amber);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 旧入口时间条 ---------- */
.page-faq .faq-deadline {
  margin: 0 0 clamp(22px, 3vw, 32px);
}

.page-faq .faq-deadline__bar {
  position: relative;
  display: block;
  height: 4px;
  background: var(--faq-line);
  border-radius: var(--radius);
}

.page-faq .faq-deadline__fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 72%;
  background: linear-gradient(90deg, var(--aurora), var(--amber));
}

.page-faq .faq-deadline__labels {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .faq-points {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-points li {
  position: relative;
  padding: 12px 0 12px 22px;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.75;
  border-bottom: 1px solid rgba(28, 69, 96, 0.6);
}

.page-faq .faq-points li:last-child {
  border-bottom: 0;
}

.page-faq .faq-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 8px;
  height: 8px;
  background: var(--aurora);
}

.page-faq .faq-points strong {
  color: var(--lime);
  font-weight: 600;
  font-family: var(--font-mono);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-contact__cell {
  padding: 22px 20px;
  background: var(--faq-card);
  border: 1px solid var(--faq-line);
  border-top: 3px solid var(--aurora);
  border-radius: var(--radius);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-contact__cell:hover {
  transform: translateY(-4px);
  border-color: var(--aurora);
}

.page-faq .faq-contact__label {
  display: block;
  color: var(--aurora-soft);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-faq .faq-contact__value {
  margin: 12px 0 0;
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.5;
  word-break: break-word;
}

.page-faq .faq-contact__desc {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 通用补充链接 ---------- */
.page-faq .faq-more {
  margin: clamp(24px, 3vw, 32px) 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-more a {
  color: var(--aurora);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 198, 0.4);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
  }

  .page-faq .faq-step:nth-child(2) {
    margin-top: 24px;
  }

  .page-faq .faq-step:nth-child(3) {
    margin-top: 48px;
  }

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

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

  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact__cell--wide {
    grid-column: 1 / -1;
  }
}

/* ---------- 桌面：常驻索引 + 单栏问答 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-shell {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 76px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-index__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--faq-line);
  }

  .page-faq .faq-index__list li {
    display: block;
  }

  .page-faq .faq-index__list a {
    display: flex;
    width: 100%;
    padding: 9px 16px;
    margin-left: -1px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    font-size: 14px;
    line-height: 1.5;
    white-space: normal;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    background: rgba(47, 227, 198, 0.06);
    border-left-color: var(--aurora);
  }

  .page-faq .faq-item__a {
    padding-left: 20px;
    max-width: 68ch;
  }

  .page-faq .faq-figure--tall img {
    max-height: 420px;
  }
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-item,
  .page-faq .faq-contact__cell,
  .page-faq .faq-index__list a,
  .page-faq .faq-more a {
    transition: none;
  }

  .page-faq .faq-step:hover,
  .page-faq .faq-item:hover,
  .page-faq .faq-contact__cell:hover {
    transform: none;
  }
}