.page-faq {
  --faq-line: rgba(176, 184, 196, 0.18);
  --faq-cyan-line: rgba(0, 229, 255, 0.4);
  --faq-card: linear-gradient(165deg, rgba(22, 41, 77, 0.92), rgba(10, 20, 40, 0.95));
  --faq-ease: 180ms ease;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -140px;
  right: -160px;
  width: 440px;
  height: 440px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.16), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  margin-top: clamp(20px, 4vw, 38px);
  position: relative;
  z-index: 1;
}

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

.page-faq .faq-hero__aside {
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
  padding: clamp(18px, 3vw, 26px);
  background: var(--faq-card);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.page-faq .faq-hero__aside-title {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
}

.page-faq .faq-hero__aside-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--faq-line);
  color: var(--g300);
  font-size: 0.82rem;
  line-height: 1.7;
}

.page-faq .faq-index {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-faq .faq-index a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 4px;
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px dashed rgba(176, 184, 196, 0.14);
  font-size: 0.94rem;
  transition: color var(--faq-ease), padding-left var(--faq-ease), border-color var(--faq-ease);
}

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

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  color: var(--cyan);
  padding-left: 12px;
  border-color: var(--faq-cyan-line);
}

.page-faq .faq-index__no {
  font-size: 0.76rem;
  color: var(--amber);
}

/* ---------- 热门问题 ---------- */
.page-faq .faq-hot__top {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
}

.page-faq .faq-hot__rail {
  margin-top: clamp(24px, 4vw, 42px);
  padding: 0 0 24px;
  list-style: none;
}

.page-faq .faq-hot__rail > li {
  display: flex;
  list-style: none;
}

.page-faq .faq-hot__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  padding: 22px 20px 20px;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: var(--faq-card);
  color: var(--white);
  text-decoration: none;
  transition: transform var(--faq-ease), border-color var(--faq-ease), box-shadow var(--faq-ease);
}

.page-faq .faq-hot__card:hover,
.page-faq .faq-hot__card:focus-visible {
  transform: translateY(-6px);
  border-color: var(--cyan);
  box-shadow: 0 18px 40px rgba(0, 229, 255, 0.16);
}

.page-faq .faq-hot__no {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-faq .faq-hot__q {
  font-family: var(--font-head);
  font-size: 1.14rem;
  line-height: 1.35;
}

.page-faq .faq-hot__a {
  color: var(--g300);
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-faq .faq-hot__card .tag {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------- 图片容器 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink-800);
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.38);
}

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

.page-faq .faq-figure figcaption {
  padding: 12px 16px;
  background: rgba(10, 20, 40, 0.88);
  border-top: 1px solid var(--faq-line);
}

/* ---------- 折叠面板 ---------- */
.page-faq .faq-folds {
  display: grid;
  gap: 14px;
}

.page-faq .faq-fold {
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: var(--faq-card);
  transition: border-color var(--faq-ease), box-shadow var(--faq-ease);
}

.page-faq .faq-fold[open] {
  border-color: var(--faq-cyan-line);
  box-shadow: 0 16px 40px rgba(0, 229, 255, 0.1);
}

.page-faq .faq-fold > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  color: var(--white);
  font-family: var(--font-head);
  font-size: clamp(1rem, 2.4vw, 1.1rem);
  line-height: 1.4;
}

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

.page-faq .faq-fold > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--cyan);
  transition: color var(--faq-ease), transform var(--faq-ease);
}

.page-faq .faq-fold[open] > summary::after {
  content: "–";
  color: var(--orange);
}

.page-faq .faq-fold__no {
  font-size: 0.76rem;
  color: var(--amber);
}

.page-faq .faq-fold__body {
  padding: 14px 20px 20px;
  border-top: 1px solid rgba(176, 184, 196, 0.14);
}

.page-faq .faq-fold__body p {
  margin: 0;
  color: var(--g300);
  font-size: 0.94rem;
  line-height: 1.8;
}

.page-faq .faq-fold__path {
  display: inline-block;
  margin-top: 12px;
  padding: 8px 14px;
  border: 1px solid var(--faq-cyan-line);
  border-radius: var(--r-pill);
  background: rgba(0, 229, 255, 0.08);
  color: var(--cyan);
  font-size: 0.74rem;
  word-break: break-all;
}

/* ---------- 新版页面打开说明 ---------- */
.page-faq .faq-steps__head {
  max-width: 720px;
}

.page-faq .faq-steps__grid {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-faq .faq-steps__aside {
  border: 1px dashed var(--faq-cyan-line);
  border-radius: var(--r-lg);
  padding: clamp(20px, 3vw, 26px);
  background: rgba(16, 31, 60, 0.72);
}

.page-faq .faq-steps__aside p:first-child {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
}

.page-faq .faq-steps__aside-text {
  margin: 12px 0 16px;
  color: var(--g300);
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-faq .faq-steps__aside .copy-chip {
  width: 100%;
}

/* ---------- iOS 更新记录查询 ---------- */
.page-faq .faq-ios__head {
  max-width: 680px;
}

.page-faq .faq-ios__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-faq .faq-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(20px, 3vw, 28px);
}

.page-faq .faq-flow__item {
  position: relative;
  padding: 22px;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, rgba(22, 41, 77, 0.9), rgba(10, 20, 40, 0.96));
}

.page-faq .faq-flow__item + .faq-flow__item::before {
  content: "";
  position: absolute;
  top: -20px;
  left: 40px;
  width: 1px;
  height: 20px;
  background: linear-gradient(var(--faq-cyan-line), transparent);
}

.page-faq .faq-flow__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  height: 30px;
  padding: 0 14px;
  border-radius: var(--r-pill);
  background: var(--cyan);
  color: var(--ink-900);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-faq .faq-flow__item:nth-child(2) .faq-flow__num {
  background: var(--orange);
}

.page-faq .faq-flow__item h3 {
  margin: 14px 0 8px;
}

.page-faq .faq-flow__item p {
  margin: 0;
  color: var(--g300);
  font-size: 0.94rem;
  line-height: 1.78;
}

.page-faq .faq-ios__more {
  margin: clamp(20px, 3vw, 28px) 0 0;
  color: var(--g300);
  font-size: 0.94rem;
}

.page-faq .faq-ios__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.5);
  transition: color var(--faq-ease), border-color var(--faq-ease);
}

.page-faq .faq-ios__more a:hover,
.page-faq .faq-ios__more a:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
}

/* ---------- 收藏对照清单 ---------- */
.page-faq .faq-list__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-faq .faq-list__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-stat {
  padding: 16px 10px;
  border: 1px solid rgba(255, 201, 64, 0.32);
  border-radius: var(--r-md);
  background: rgba(10, 20, 40, 0.55);
  text-align: center;
}

.page-faq .faq-stat__num {
  display: block;
  color: var(--amber);
  font-size: clamp(1.4rem, 5vw, 2rem);
  line-height: 1.1;
}

.page-faq .faq-stat__label {
  display: block;
  margin-top: 6px;
  color: var(--g300);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
}

.page-faq .faq-folds--wide {
  margin-top: clamp(26px, 4vw, 44px);
}

.page-faq .faq-list .faq-fold {
  background: rgba(10, 20, 40, 0.55);
}

.page-faq .faq-list .faq-fold__body p {
  color: var(--g300);
}

/* ---------- 末尾通道 ---------- */
.page-faq .faq-more__panel {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(255, 107, 26, 0.16), transparent 60%),
    linear-gradient(150deg, rgba(22, 41, 77, 0.95), rgba(10, 20, 40, 0.98));
}

.page-faq .faq-more__text {
  margin: 14px 0 0;
  color: var(--g300);
  font-size: 0.94rem;
  line-height: 1.8;
}

.page-faq .faq-more__contact {
  margin: 12px 0 0;
  color: var(--amber);
  font-size: 0.86rem;
  word-break: break-all;
}

.page-faq .faq-more__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hot__rail > li:nth-child(even) {
    transform: translateY(16px);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.8fr);
    align-items: end;
  }

  .page-faq .faq-hero__aside {
    margin-bottom: 6px;
  }

  .page-faq .faq-hot__top {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr);
    align-items: center;
  }

  .page-faq .faq-figure--hot {
    transform: translateY(-8px);
  }

  .page-faq .faq-list__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: center;
  }

  .page-faq .faq-more__panel {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(250px, 0.7fr);
    align-items: start;
  }

  .page-faq .faq-steps__aside {
    transform: translateY(38px);
  }

  .page-faq .faq-ios__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-faq .faq-flow__item--offset {
    margin-left: clamp(20px, 4vw, 52px);
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-flow__item--offset {
    margin-left: clamp(40px, 7vw, 92px);
  }
}