.page-faq {
  --faq-cell: rgba(12, 44, 69, 0.55);
  --faq-hair: rgba(74, 101, 114, 0.55);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .blueprint-meta {
  margin-top: 18px;
}

.page-faq .breadcrumb {
  margin: 14px 0 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  padding: clamp(22px, 4vw, 38px) 0 clamp(28px, 4vw, 46px);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-kicker {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-400);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-size: clamp(30px, 7.2vw, 52px);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--paper-100);
}

.page-faq .faq-hero h1 span {
  display: block;
  color: var(--accent-400);
  margin-top: 6px;
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: clamp(16px, 2.1vw, 18px);
  line-height: 1.75;
  color: var(--mist-300);
}

.page-faq .faq-facts {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
}

.page-faq .faq-facts li {
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist-300);
  padding-left: 12px;
  border-left: 1px solid var(--line-500);
}

.page-faq .faq-facts .mono {
  display: block;
  color: var(--paper-100);
  font-size: 14px;
  letter-spacing: 0.04em;
}

.page-faq .faq-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--faq-hair);
  background: var(--ink-700);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 1000 / 700;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
}

.page-faq .faq-figure figcaption {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist-300);
  padding: 10px 14px;
  border-top: 1px solid var(--faq-hair);
  background: rgba(6, 26, 43, 0.72);
}

.page-faq .faq-figure::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 104px;
  height: 104px;
  background: linear-gradient(225deg, rgba(61, 224, 200, 0.26), transparent 72%);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  pointer-events: none;
}

/* ---------- 分组标签 ---------- */
.page-faq .faq-index {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(26px, 4vw, 44px) 0 clamp(26px, 4vw, 40px);
  background: var(--faq-hair);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-tab {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 15px 14px 22px;
  background: var(--ink-900);
  color: var(--paper-100);
  text-decoration: none;
  font-weight: 800;
  font-size: 17px;
  line-height: 1.3;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-faq .faq-tab::after {
  content: "";
  position: absolute;
  left: 14px;
  bottom: 11px;
  height: 1px;
  width: 0;
  background: var(--accent-400);
  transition: width var(--t-mid) var(--ease);
}

.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  background: var(--ink-700);
}

.page-faq .faq-tab:hover::after,
.page-faq .faq-tab:focus-visible::after {
  width: calc(100% - 28px);
}

.page-faq .faq-tab__num {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--accent-400);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding: clamp(26px, 4vw, 40px) 0;
  border-top: 1px solid var(--faq-hair);
  scroll-margin-top: 92px;
}

.page-faq .faq-group:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 8px;
  margin-bottom: 20px;
}

.page-faq .faq-num {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--coral-500);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-size: clamp(24px, 4.6vw, 34px);
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--paper-100);
}

.page-faq .faq-group__desc {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist-300);
}

.page-faq .faq-group__body {
  display: grid;
  gap: 20px;
}

/* ---------- 问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-hair);
  background: linear-gradient(180deg, var(--faq-cell), rgba(6, 26, 43, 0.35));
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-mid) var(--ease), transform var(--t-fast) var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(61, 224, 200, 0.55);
  transform: translateY(-2px);
}

.page-faq .faq-item[open] {
  border-color: rgba(255, 107, 74, 0.45);
  box-shadow: inset 3px 0 0 var(--coral-500);
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  position: relative;
  padding: 15px 18px 15px 46px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper-100);
}

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

.page-faq .faq-item summary::before {
  content: "+";
  position: absolute;
  left: 16px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  color: var(--accent-400);
  transition: color var(--t-fast) var(--ease);
}

.page-faq .faq-item[open] summary::before {
  content: "–";
  color: var(--coral-500);
}

.page-faq .faq-a {
  padding: 0 18px 18px 46px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-300);
}

.page-faq .faq-a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-path a {
  color: var(--accent-200);
  text-decoration: none;
  border-bottom: 1px solid rgba(155, 243, 228, 0.45);
  padding-bottom: 2px;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .faq-path a:hover,
.page-faq .faq-path a:focus-visible {
  color: var(--paper-100);
  border-bottom-color: var(--accent-400);
}

.page-faq .faq-path a span {
  margin-left: 6px;
  color: var(--coral-500);
  font-family: var(--font-mono);
}

/* ---------- 旁注 ---------- */
.page-faq .faq-aside {
  align-self: start;
  padding: 16px 16px 18px;
  border: 1px solid var(--faq-hair);
  border-left: 3px solid var(--accent-400);
  background: rgba(15, 59, 68, 0.45);
}

.page-faq .faq-aside__title {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--accent-400);
}

.page-faq .faq-aside p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist-300);
}

.page-faq .faq-aside .btn {
  display: inline-block;
  font-size: 14px;
}

.page-faq .faq-figure--group {
  margin: 0 0 22px;
}

.page-faq .faq-figure--group img {
  aspect-ratio: 900 / 600;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-tab {
    flex-direction: row;
    align-items: baseline;
    gap: 10px;
    padding: 18px 16px 24px;
    font-size: 18px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
  }

  .page-faq .faq-group__body {
    grid-template-columns: minmax(0, 1fr) 284px;
    gap: 32px;
    align-items: start;
  }

  .page-faq .faq-group__head {
    grid-template-columns: 44px minmax(0, 1fr);
    grid-template-areas:
      "num title"
      ".   desc";
    column-gap: 14px;
    align-items: baseline;
  }

  .page-faq .faq-num {
    grid-area: num;
    padding-top: 8px;
  }

  .page-faq .faq-group__head h2 {
    grid-area: title;
  }

  .page-faq .faq-group__desc {
    grid-area: desc;
  }

  .page-faq .faq-item summary {
    font-size: 17px;
    padding: 17px 22px 17px 50px;
  }

  .page-faq .faq-item summary::before {
    left: 20px;
    top: 17px;
  }

  .page-faq .faq-a {
    padding: 0 22px 20px 50px;
    font-size: 15.5px;
  }
}
<<<END>>>