.page-faq {
  --faq-gap: 40px;
  --faq-line-left: 19px;
  position: relative;
  overflow-x: clip;
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-intro {
  position: relative;
  isolation: isolate;
  padding: 18px 0 8px;
}

.page-faq .faq-intro::before {
  content: "";
  position: absolute;
  inset: -140px -60px auto -60px;
  height: 460px;
  background:
    radial-gradient(58% 66% at 6% 0%, rgba(53, 230, 210, 0.20), transparent 72%),
    radial-gradient(48% 58% at 94% 8%, rgba(255, 138, 61, 0.16), transparent 70%);
  filter: blur(8px);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-intro .eyebrow {
  display: block;
  letter-spacing: 0.12em;
}

.page-faq .faq-intro h1 {
  margin: 14px 0 0;
  font-size: clamp(28px, 6.6vw, 52px);
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -0.02em;
  max-width: 20em;
}

.page-faq .faq-intro .lead {
  margin: 18px 0 0;
  max-width: var(--prose);
  color: var(--muted);
}

.page-faq .faq-jump {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .faq-jump__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 18px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
  transition: border-color 220ms var(--ease), transform 220ms var(--ease), background 220ms var(--ease);
}

.page-faq .faq-jump__item:hover,
.page-faq .faq-jump__item:focus-visible {
  border-color: var(--cyan);
  background: var(--glass-2);
  transform: translateY(-2px);
}

.page-faq .faq-jump__num {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.06em;
}

/* ---------- 面板通用 ---------- */
.page-faq .faq-panel {
  margin-top: var(--faq-gap);
}

.page-faq .faq-panel .panel__coord {
  display: block;
  margin-bottom: 8px;
}

.page-faq .faq-panel .panel__title {
  font-size: clamp(21px, 4.6vw, 30px);
  line-height: 1.28;
  font-weight: 900;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
}

.page-faq .faq-sub {
  margin: 0 0 22px;
  max-width: var(--prose);
  color: var(--muted);
}

.page-faq .faq-linkline {
  margin: 22px 0 0;
  font-size: 15px;
  color: var(--muted);
}

.page-faq .faq-linkline a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 210, 0.4);
}

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

/* ---------- 步骤条 ---------- */
.page-faq .faq-swap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-faq .faq-path {
  display: none;
  width: 100%;
  height: 56px;
  margin-bottom: 10px;
}

.page-faq .faq-step {
  position: relative;
  padding-left: 42px;
}

.page-faq .faq-step + .faq-step {
  margin-top: 12px;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: var(--faq-line-left);
  top: 26px;
  bottom: -12px;
  border-left: 1px dashed var(--line);
  z-index: 0;
}

.page-faq .faq-step:last-child::before {
  display: none;
}

.page-faq .faq-step__head {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 6px 0;
  font-weight: 700;
  font-size: 16px;
  color: var(--ink);
  transition: color 200ms var(--ease);
}

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

.page-faq .faq-step__head:hover,
.page-faq .faq-step__head:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-step__dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  background: var(--bg);
  pointer-events: none;
  z-index: 1;
  transition: border-color 220ms var(--ease), background 220ms var(--ease);
}

.page-faq .faq-step[open] .faq-step__dot {
  border-color: var(--green);
  background: var(--green);
}

.page-faq .faq-step__num {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.08em;
  flex: none;
}

.page-faq .faq-step[open] .faq-step__num {
  color: var(--green);
}

.page-faq .faq-step__body {
  padding: 4px 0 12px;
  max-width: var(--prose);
}

.page-faq .faq-step__body p {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .faq-step__hint {
  color: var(--ink) !important;
  font-size: 14px !important;
  padding-left: 12px;
  border-left: 2px solid var(--orange);
}

/* ---------- 图片框 ---------- */
.page-faq .faq-fig {
  margin: 0;
  border-radius: var(--r-m);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}

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

.page-faq .faq-fig--swap img {
  aspect-ratio: 4 / 3;
}

.page-faq .faq-fig--stuck {
  margin-top: 24px;
}

.page-faq .faq-fig--stuck img {
  aspect-ratio: 2 / 1;
}

/* ---------- 苹果版要点列表 ---------- */
.page-faq .faq-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  overflow: hidden;
}

.page-faq .faq-points li {
  background: var(--bg);
  padding: 16px 18px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.page-faq .faq-points strong {
  color: var(--cyan);
  font-size: 15px;
  font-weight: 700;
}

.page-faq .faq-points span {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

/* ---------- 八类卡顿清单 ---------- */
.page-faq .faq-stuck {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-stuck__item {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
}

.page-faq .faq-stuck__item::before {
  content: "";
  position: absolute;
  left: var(--faq-line-left);
  top: 0;
  bottom: 0;
  border-left: 1px dashed var(--line);
  z-index: 0;
}

.page-faq .faq-stuck__item:first-child::before {
  top: 34px;
}

.page-faq .faq-stuck__item:last-child::before {
  bottom: calc(100% - 34px);
}

.page-faq .faq-stuck__num {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--cyan);
  font-size: 13px;
  flex: none;
}

.page-faq .faq-stuck__text h3 {
  margin: 6px 0 4px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-stuck__text p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
  max-width: var(--prose);
}

/* ---------- 版本号拆解 ---------- */
.page-faq .faq-ver {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-ver__seg {
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  padding: 16px 18px;
  background: linear-gradient(160deg, rgba(53, 230, 210, 0.07), transparent 62%);
}

.page-faq .faq-ver__tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--violet);
  border: 1px solid var(--line);
  border-radius: var(--pill);
  padding: 3px 10px;
}

.page-faq .faq-ver__seg h3 {
  margin: 12px 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-ver__seg p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

/* ---------- 三条版本线 ---------- */
.page-faq .faq-lines {
  margin-top: 22px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-line {
  border-radius: var(--r-m);
  border: 1px solid var(--line);
  border-left-width: 3px;
  background: var(--glass);
  padding: 16px 18px;
}

.page-faq .faq-line h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 900;
  color: var(--ink);
}

.page-faq .faq-line p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-line--v5 {
  border-left-color: var(--cyan);
}

.page-faq .faq-line--v6 {
  border-left-color: var(--violet);
}

.page-faq .faq-line--v7 {
  border-left-color: var(--orange);
}

/* ---------- 人工通道 ---------- */
.page-faq .faq-human {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-human__card {
  position: relative;
  border-radius: var(--r-m);
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  overflow: hidden;
}

.page-faq .faq-human__card::after {
  content: "";
  position: absolute;
  inset: auto -30% -60% -30%;
  height: 140px;
  pointer-events: none;
}

.page-faq .faq-human__card--cyan {
  border-color: rgba(53, 230, 210, 0.35);
}

.page-faq .faq-human__card--cyan::after {
  background: radial-gradient(50% 70% at 50% 100%, rgba(53, 230, 210, 0.22), transparent 72%);
}

.page-faq .faq-human__card--orange {
  border-color: rgba(255, 138, 61, 0.35);
}

.page-faq .faq-human__card--orange::after {
  background: radial-gradient(50% 70% at 50% 100%, rgba(255, 138, 61, 0.20), transparent 72%);
}

.page-faq .faq-human__tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.1em;
  padding: 3px 10px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  color: var(--muted);
}

.page-faq .faq-human__card--cyan .faq-human__tag {
  color: var(--cyan);
}

.page-faq .faq-human__card--orange .faq-human__tag {
  color: var(--orange);
}

.page-faq .faq-human__card h3 {
  margin: 12px 0 8px;
  font-size: 18px;
  font-weight: 900;
  color: var(--ink);
}

.page-faq .faq-human__card p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-human__val {
  position: relative;
  z-index: 1;
  margin: 0 0 14px !important;
  font-size: 15px;
  color: var(--ink);
  word-break: break-all;
}

.page-faq .faq-human__card .copy-btn {
  position: relative;
  z-index: 1;
}

/* ---------- 服务信息 ---------- */
.page-faq .faq-meta {
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-meta__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-meta__row dt {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .faq-meta__row dd {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-meta__row dd a {
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.page-faq .faq-meta__row dd a:hover,
.page-faq .faq-meta__row dd a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-jump {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-points li {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }

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

  .page-faq .faq-meta__row {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-faq {
    --faq-gap: 56px;
  }

  .page-faq .faq-intro {
    padding-top: 28px;
  }

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

  .page-faq .faq-swap {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 34px;
    align-items: start;
  }

  .page-faq .faq-path {
    display: block;
  }

  .page-faq .faq-fig--swap {
    position: sticky;
    top: 24px;
  }

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

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

@media (min-width: 1100px) {
  .page-faq .faq-panel .panel__body {
    padding-left: 4px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump__item,
  .page-faq .faq-step__dot {
    transition: none !important;
  }

  .page-faq .faq-jump__item:hover,
  .page-faq .faq-jump__item:focus-visible {
    transform: none;
  }
}