.page-faq {
  background: var(--warm);
  color: var(--ink);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 26px 0 40px;
  background:
    radial-gradient(120% 140% at 82% 0%, rgba(22, 58, 99, .9) 0%, rgba(11, 31, 58, 0) 60%),
    linear-gradient(168deg, #0B1F3A 0%, #071426 62%, #163A63 100%);
  color: var(--warm);
}
.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .22;
  mix-blend-mode: screen;
  pointer-events: none;
}
.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero .breadcrumb {
  color: rgba(246, 242, 232, .7);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  margin-bottom: 22px;
}
.page-faq .faq-hero .breadcrumb a {
  color: rgba(246, 242, 232, .82);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast) var(--ease);
}
.page-faq .faq-hero .breadcrumb a:hover,
.page-faq .faq-hero .breadcrumb a:focus-visible {
  border-bottom-color: var(--gold);
}
.page-faq .faq-hero .breadcrumb__sep {
  margin: 0 8px;
  color: rgba(246, 242, 232, .45);
}
.page-faq .faq-hero .eyebrow {
  color: var(--gold-soft);
}
.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  letter-spacing: -.03em;
  line-height: 1.08;
  font-size: clamp(28px, 7.4vw, 54px);
  font-weight: 700;
  margin: 14px 0 18px;
  max-width: 20ch;
}
.page-faq .faq-hero__lead {
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 242, 232, .82);
  margin: 0 0 26px;
}
.page-faq .faq-hero__quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-faq .faq-hero__quick a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid rgba(246, 242, 232, .22);
  border-radius: 999px;
  background: rgba(246, 242, 232, .06);
  color: var(--warm);
  font-size: 13px;
  text-decoration: none;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.page-faq .faq-hero__quick a:hover,
.page-faq .faq-hero__quick a:focus-visible {
  background: rgba(201, 164, 92, .18);
  border-color: var(--gold);
}
.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  padding: 34px 0 60px;
}
.page-faq .faq-toc {
  padding: 18px 0 0;
  border-top: 2px solid var(--gold);
  margin-bottom: 34px;
}
.page-faq .faq-toc__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-55);
  margin: 0 0 12px;
}
.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
}
.page-faq .faq-toc__list a {
  display: flex;
  gap: 12px;
  padding: 9px 4px;
  font-size: 14px;
  color: var(--ink-70);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
  transition: color var(--t-fast) var(--ease), padding-left var(--t-fast) var(--ease);
}
.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  color: var(--deep);
  padding-left: 8px;
}
.page-faq .faq-toc__list a span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
  padding-top: 3px;
}
.page-faq .faq-toc__foot {
  margin: 16px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-55);
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding: 30px 0 6px;
  margin-bottom: 30px;
  border-top: 1px solid var(--line-soft);
}
.page-faq .faq-sec:first-child {
  border-top: 0;
  padding-top: 6px;
}
.page-faq .faq-sec__head {
  display: grid;
  grid-template-columns: 40px 1fr;
  align-items: start;
  gap: 10px;
  margin-bottom: 14px;
}
.page-faq .faq-sec__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--gold);
  padding-top: 6px;
}
.page-faq .faq-sec__title {
  font-family: var(--font-serif);
  font-size: clamp(21px, 4.6vw, 30px);
  line-height: 1.28;
  letter-spacing: -.01em;
  margin: 0;
  font-weight: 600;
}
.page-faq .faq-sec__lead {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-70);
  margin: 0 0 18px;
  max-width: 62ch;
}
.page-faq .faq-sec__lead--after {
  margin-top: 22px;
}
.page-faq .faq-sec__lead a,
.page-faq .faq-note a {
  color: var(--star);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 58, 99, .35);
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.page-faq .faq-sec__lead a:hover,
.page-faq .faq-note a:hover,
.page-faq .faq-sec__lead a:focus-visible,
.page-faq .faq-note a:focus-visible {
  color: var(--deep);
  border-bottom-color: var(--gold);
}

/* ---------- 步骤 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-faq .faq-step {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 12px;
  padding: 14px 16px;
  background: var(--paper);
  border-left: 2px solid var(--gold);
  border-radius: 2px;
}
.page-faq .faq-step__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  padding-top: 3px;
}
.page-faq .faq-step strong {
  display: block;
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: -.01em;
  margin-bottom: 5px;
  color: var(--deep);
}
.page-faq .faq-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-70);
}
.page-faq .faq-steps--tight {
  margin-bottom: 14px;
}

/* ---------- 图 ---------- */
.page-faq .faq-media {
  margin: 0;
  border-radius: 3px;
  overflow: hidden;
  background: var(--deep);
}
.page-faq .faq-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-media .media__cap {
  display: block;
  padding: 10px 14px;
  background: var(--deep);
  color: rgba(246, 242, 232, .72);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .02em;
}

/* ---------- 标签与提示 ---------- */
.page-faq .faq-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.page-faq .faq-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-55);
}
.page-faq .faq-note {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 1px solid var(--gold);
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-55);
}

/* ---------- 深色章节 ---------- */
.page-faq .faq-sec--dark {
  margin-left: -18px;
  margin-right: -18px;
  padding: 28px 18px 26px;
  border-top: 0;
  border-radius: 4px;
  background:
    radial-gradient(90% 120% at 88% 0%, rgba(22, 58, 99, .82) 0%, rgba(11, 31, 58, 0) 65%),
    linear-gradient(160deg, #0B1F3A 0%, #071426 100%);
  color: var(--warm);
}
.page-faq .faq-sec--dark .faq-sec__title {
  color: var(--warm);
}
.page-faq .faq-sec--dark .faq-sec__lead {
  color: rgba(246, 242, 232, .8);
}
.page-faq .faq-sec--dark .faq-note--invert {
  color: rgba(246, 242, 232, .68);
  border-left-color: rgba(231, 211, 162, .5);
}
.page-faq .faq-sec--dark .faq-note--invert a {
  color: var(--gold-soft);
  border-bottom-color: rgba(231, 211, 162, .4);
}
.page-faq .faq-sec--dark .faq-note--invert a:hover,
.page-faq .faq-sec--dark .faq-note--invert a:focus-visible {
  color: #fff;
  border-bottom-color: var(--gold);
}

/* ---------- 标签页 ---------- */
.page-faq .faq-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.page-faq .faq-tabs .tabs__btn {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .03em;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid rgba(246, 242, 232, .26);
  background: transparent;
  color: rgba(246, 242, 232, .78);
  cursor: pointer;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.page-faq .faq-tabs .tabs__btn:hover {
  border-color: var(--gold-soft);
}
.page-faq .faq-tabs .tabs__btn[aria-selected="true"] {
  background: var(--gold);
  border-color: var(--gold);
  color: #0B1F3A;
}
.page-faq .faq-tabs .tabs__btn:focus-visible {
  outline: 2px solid var(--gold-soft);
  outline-offset: 2px;
}
.page-faq .faq-compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(246, 242, 232, .16);
  border-radius: 3px;
  overflow: hidden;
}
.page-faq .faq-compare__col {
  padding: 14px 16px;
  background: rgba(7, 20, 38, .86);
}
.page-faq .faq-compare__k {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold-soft);
}
.page-faq .faq-compare__v {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(246, 242, 232, .86);
}

/* ---------- 参数表 ---------- */
.page-faq .faq-spec {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
}
.page-faq .faq-spec__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 12px 16px;
  background: var(--paper);
}
.page-faq .faq-spec__k {
  font-size: 13px;
  color: var(--ink-55);
}
.page-faq .faq-spec__v {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--deep);
  letter-spacing: .02em;
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-accordion {
  border-top: 1px solid var(--line);
}
.page-faq .faq-acc {
  border-bottom: 1px solid var(--line);
}
.page-faq .faq-acc > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding: 16px 30px 16px 0;
  position: relative;
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: -.01em;
  color: var(--deep);
  transition: color var(--t-fast) var(--ease);
}
.page-faq .faq-acc > summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-acc > summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--gold);
  transition: transform var(--t-mid) var(--ease);
}
.page-faq .faq-acc[open] > summary::after {
  transform: translateY(-50%) rotate(45deg);
}
.page-faq .faq-acc > summary:hover {
  color: var(--star);
}
.page-faq .faq-acc > summary:focus-visible {
  outline: 2px solid var(--star);
  outline-offset: 2px;
}
.page-faq .faq-acc__hint {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 400;
  color: var(--ink-55);
}
.page-faq .faq-acc__body {
  padding: 0 0 16px;
}
.page-faq .faq-acc__list {
  margin: 0;
  padding: 0 0 0 18px;
  display: grid;
  gap: 8px;
  max-width: 64ch;
}
.page-faq .faq-acc__list li {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-70);
}
.page-faq .faq-acc__list li::marker {
  color: var(--gold);
}

/* ---------- 结尾联系 ---------- */
.page-faq .faq-sec--end {
  border-top: 2px solid var(--gold);
  padding-top: 28px;
}
.page-faq .faq-cta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding: 20px 18px;
  background: linear-gradient(150deg, #0B1F3A 0%, #163A63 100%);
  border-radius: 3px;
  color: var(--warm);
}
.page-faq .faq-cta__k {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold-soft);
}
.page-faq .faq-mail {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: .01em;
  color: var(--warm);
  word-break: break-all;
}
.page-faq .faq-cta__list {
  margin: 0;
  padding-left: 16px;
  display: grid;
  gap: 5px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(246, 242, 232, .82);
}
.page-faq .faq-cta__list li::marker {
  color: var(--gold);
}

/* ---------- 显现 ---------- */
.page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 420ms var(--ease), transform 420ms var(--ease);
}
.page-faq [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 平板起 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 36px 0 56px;
  }
  .page-faq .faq-hero__lead {
    font-size: 16px;
  }
  .page-faq .faq-toc__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 24px;
  }
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }
  .page-faq .faq-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .faq-spec {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    align-items: start;
    padding: 24px 22px;
  }
  .page-faq .faq-mail {
    font-size: 18px;
  }
  .page-faq .faq-sec--dark {
    margin-left: 0;
    margin-right: 0;
    padding: 30px 26px 28px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-body {
    display: grid;
    grid-template-columns: 238px minmax(0, 1fr);
    gap: 52px;
    padding: 52px 0 84px;
  }
  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--topbar-h) + 20px);
    align-self: start;
    margin-bottom: 0;
    padding-top: 20px;
  }
  .page-faq .faq-toc__list {
    grid-template-columns: 1fr;
  }
  .page-faq .faq-sec {
    padding: 40px 0 10px;
    margin-bottom: 40px;
  }
  .page-faq .faq-sec__head {
    grid-template-columns: 54px 1fr;
    gap: 14px;
    margin-bottom: 18px;
  }
  .page-faq .faq-sec__lead {
    font-size: 15.5px;
  }
  .page-faq .faq-sec--dark {
    padding: 36px 34px 32px;
    margin-bottom: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-faq .faq-acc > summary::after {
    transition: none;
  }
}
<<<END>>>