.page-faq {
  --faq-line: 2px solid var(--rail-line);
  --faq-shadow: 5px 5px 0 rgba(6, 10, 22, .78);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 44px 0 40px;
  background:
    radial-gradient(880px 420px at 10% -18%, rgba(47, 107, 255, .20), transparent 66%),
    radial-gradient(700px 380px at 96% 6%, rgba(41, 242, 220, .10), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
  border-bottom: var(--faq-line);
}

.page-faq .faq-crumb {
  margin: 0 0 22px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-faq .faq-crumb a {
  color: var(--blue-soft);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .faq-crumb span {
  margin: 0 8px;
  color: var(--rail-line-2);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  max-width: 22ch;
  font-family: var(--narrow);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 64px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .faq-hero .lead {
  margin: 0;
  max-width: 66ch;
  font-size: 17px;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- 分组面板 + 首图 ---------- */
.page-faq .faq-board {
  display: grid;
  gap: 26px;
  margin-top: 40px;
}

.page-faq .faq-panel {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-panel__item {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num desc";
  align-content: center;
  gap: 4px 14px;
  padding: 16px 18px;
  min-height: 92px;
  border: var(--faq-line);
  background: linear-gradient(160deg, var(--indigo) 0%, var(--ink-2) 72%);
  box-shadow: var(--faq-shadow);
  color: inherit;
  text-decoration: none;
  transition:
    transform var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease),
    background-color var(--t-fast) var(--ease);
}

.page-faq .faq-panel__item:nth-child(even) {
  background: linear-gradient(160deg, var(--teal) 0%, var(--ink-2) 72%);
}

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

.page-faq .faq-panel__num {
  grid-area: num;
  align-self: start;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-faq .faq-panel__title {
  grid-area: title;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-panel__desc {
  grid-area: desc;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-board__fig {
  margin: 0;
  aspect-ratio: 1000 / 640;
}

.page-faq .faq-board__fig img,
.page-faq .faq-inline-fig img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-block {
  position: relative;
  padding: 52px 0;
  border-bottom: var(--faq-line);
  background: linear-gradient(180deg, var(--ink) 0%, rgba(13, 21, 48, .55) 100%);
}

.page-faq #q-login { --blk: var(--blue); }
.page-faq #q-index { --blk: var(--cyan); }
.page-faq #q-download { --blk: var(--blue-soft); }
.page-faq #q-collect { --blk: var(--orange); }
.page-faq #q-display { --blk: var(--cyan); }
.page-faq #q-account { --blk: var(--orange-soft); }
.page-faq #q-prepare { --blk: var(--orange); }

.page-faq .faq-block__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0 18px;
  margin-bottom: 26px;
  padding-left: 18px;
  border-left: 4px solid var(--blk, var(--cyan));
}

.page-faq .faq-block__num {
  grid-row: 1 / span 2;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--blk, var(--cyan));
  padding-top: 10px;
}

.page-faq .faq-block__head h2 {
  margin: 0 0 8px;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .faq-block__note {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 可展开问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: var(--faq-line);
  background: linear-gradient(180deg, rgba(13, 21, 48, .92) 0%, rgba(6, 10, 22, .92) 100%);
  transition: border-color var(--t-mid) var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--blk, var(--cyan));
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--text);
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .faq-item__q:hover,
.page-faq .faq-item[open] .faq-item__q {
  color: var(--cyan);
}

.page-faq .faq-item__mark {
  position: relative;
  width: 14px;
  height: 14px;
  flex: none;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--blk, var(--cyan));
  transition: transform var(--t-mid) var(--ease);
}

.page-faq .faq-item__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

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

.page-faq .faq-item__a {
  margin: 0 18px 18px;
  padding: 4px 0 4px 16px;
  border-left: 2px solid var(--cyan);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
}

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

.page-faq .faq-item__a a {
  color: var(--blue-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--t-fast) var(--ease);
}

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

/* ---------- 收藏区块内嵌图 ---------- */
.page-faq .faq-inline-fig {
  margin: 26px 0 0;
  max-width: 720px;
  aspect-ratio: 900 / 560;
}

/* ---------- 准备清单 ---------- */
.page-faq .faq-block--prepare {
  background:
    radial-gradient(620px 320px at 88% 4%, rgba(255, 139, 61, .12), transparent 64%),
    linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 100%);
  border-bottom: 0;
}

.page-faq .faq-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 760px;
}

.page-faq .faq-checklist li {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  border: var(--faq-line);
  background: rgba(13, 21, 48, .72);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  transition: border-color var(--t-fast) var(--ease);
}

.page-faq .faq-checklist li::before {
  content: "";
  width: 16px;
  height: 16px;
  margin-top: 6px;
  border: 2px solid var(--cyan);
  background: transparent;
}

.page-faq .faq-checklist li:hover {
  border-color: var(--orange);
}

.page-faq .faq-block__foot {
  margin: 22px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

.page-faq .faq-block__foot a {
  color: var(--orange-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--t-fast) var(--ease);
}

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

/* ---------- 收尾 ---------- */
.page-faq .faq-outro {
  padding: 34px 0 46px;
  background: var(--ink);
}

.page-faq .faq-outro p {
  margin: 0;
  max-width: 70ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

.page-faq .faq-outro a {
  color: var(--blue-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--t-fast) var(--ease);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-item__q {
    padding: 18px 22px;
  }

  .page-faq .faq-item__a {
    margin: 0 22px 20px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero {
    padding: 60px 0 48px;
  }

  .page-faq .faq-board {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: stretch;
    gap: 28px;
    margin-top: 48px;
  }

  .page-faq .faq-board__fig {
    aspect-ratio: auto;
    height: 100%;
  }

  .page-faq .faq-block {
    padding: 68px 0;
  }

  .page-faq .faq-block__head {
    margin-bottom: 30px;
  }

  .page-faq .faq-list {
    gap: 12px;
  }

  .page-faq .faq-inline-fig {
    margin-top: 32px;
  }
}

@media (min-width: 1240px) {
  .page-faq .faq-block__head {
    grid-template-columns: 64px minmax(0, 1fr);
    padding-left: 22px;
  }

  .page-faq .faq-block__num {
    writing-mode: vertical-rl;
    letter-spacing: .32em;
    padding-top: 0;
    align-self: start;
  }

  .page-faq .faq-block__num + div {
    padding-left: 0;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-hero h1 {
    font-size: 28px;
  }

  .page-faq .faq-hero .lead {
    font-size: 16px;
  }

  .page-faq .faq-panel__item {
    min-height: 0;
    padding: 14px 16px;
  }

  .page-faq .faq-item__q {
    padding: 14px 15px;
    font-size: 15px;
  }

  .page-faq .faq-item__a {
    margin: 0 15px 16px;
    padding-left: 13px;
  }
}
<<<END>>>