.page-faq {
  --faq-accent: #17C3D4;
  background: var(--paper);
  color: var(--graphite);
  font-family: var(--font-sans);
  overflow-x: hidden;
}
.page-faq .container { width: 100%; max-width: var(--shell); margin: 0 auto; padding-inline: var(--gutter); }
.page-faq .mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--slate);
}
.page-faq .breadcrumb a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-faq .breadcrumb a:hover { color: var(--cyan-ink); border-bottom-color: currentColor; }
.page-faq .breadcrumb-sep { color: var(--mist); }
.page-faq .breadcrumb [aria-current="page"] { color: var(--deep); font-weight: 700; }

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  margin-top: 22px;
  padding: clamp(38px, 6.5vw, 84px) 0 clamp(46px, 7vw, 88px);
  background: linear-gradient(168deg, var(--deep) 0%, #123a63 58%, var(--ink) 100%);
  color: var(--paper);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), 0 100%);
  overflow: hidden;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(23,195,212,.10) 1px, transparent 1px),
    linear-gradient(0deg, rgba(23,195,212,.06) 1px, transparent 1px);
  background-size: 58px 58px;
  pointer-events: none;
  opacity: .55;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 34%;
  height: 100%;
  background: radial-gradient(circle at 80% 0%, rgba(255,106,43,.16), transparent 62%);
  pointer-events: none;
}
.page-faq .faq-hero-inner { position: relative; z-index: 1; }
.page-faq .eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 4px 12px;
  border: 1px solid rgba(169,232,239,.36);
  color: var(--cyan-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
  background: rgba(23,195,212,.10);
}
.page-faq .faq-hero h1 {
  margin: 0 0 20px;
  max-width: 16ch;
  font-size: clamp(34px, 6.2vw, 64px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -0.025em;
  color: var(--white);
}
.page-faq .h1-mark {
  color: var(--cyan);
  position: relative;
  display: inline-block;
}
.page-faq .h1-mark::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 6px;
  height: 8px;
  background: rgba(255,106,43,.55);
  z-index: -1;
  clip-path: polygon(0 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}
.page-faq .lede {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: rgba(247,249,251,.82);
}
.page-faq .faq-tick {
  position: absolute;
  left: 0; right: 0;
  bottom: 26px;
  height: 2px;
  background: repeating-linear-gradient(90deg, rgba(23,195,212,.55) 0 10px, transparent 10px 22px);
  opacity: .5;
}

/* 分组跳转 */
.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(24px, 4vw, 38px);
}
.page-faq .jump-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border: 1px solid rgba(169,232,239,.30);
  border-radius: 2px;
  color: var(--cyan-soft);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: transform .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}
.page-faq .jump-link .num {
  color: var(--orange);
  font-weight: 700;
  font-size: 11px;
}
.page-faq .jump-link:hover,
.page-faq .jump-link:focus-visible {
  background: rgba(23,195,212,.18);
  border-color: var(--cyan);
  color: var(--white);
  transform: translateY(-2px);
  outline: none;
}

/* 问答主体 */
.page-faq .faq-body {
  padding: clamp(30px, 5vw, 64px) 0 clamp(40px, 6vw, 72px);
}
.page-faq .faq-group {
  position: relative;
  margin-bottom: clamp(36px, 5vw, 56px);
  padding-left: clamp(0px, 3vw, 34px);
  border-left: 3px solid var(--faq-accent);
  scroll-margin-top: 92px;
}
.page-faq .faq-group:last-child { margin-bottom: 0; }

.page-faq .faq-group-head { margin-bottom: 20px; }
.page-faq .section-index {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 12px;
  margin-bottom: 14px;
  background: var(--faq-accent);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}
.page-faq .faq-group:nth-of-type(4) .section-index,
.page-faq .faq-group:nth-of-type(6) .section-index { color: var(--white); }
.page-faq .faq-group-head h2 {
  margin: 0 0 10px;
  font-size: clamp(21px, 3vw, 29px);
  line-height: 1.24;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--deep);
}
.page-faq .faq-group-head p {
  max-width: 64ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--slate);
}

/* 折叠问答 */
.page-faq .faq-items {
  margin-top: 10px;
  border-top: 1px solid var(--mist);
}
.page-faq .faq-item {
  border-bottom: 1px solid var(--mist);
  background: transparent;
  transition: background .25s var(--ease);
}
.page-faq .faq-item[open] { background: var(--white); }
.page-faq .faq-item summary {
  position: relative;
  display: block;
  padding: 18px 52px 18px 4px;
  font-size: clamp(15.5px, 1.7vw, 17px);
  font-weight: 600;
  line-height: 1.52;
  color: var(--deep);
  cursor: pointer;
  list-style: none;
}
.page-faq .faq-item summary::-webkit-details-marker { display: none; }
.page-faq .faq-item summary::marker { content: ""; }
.page-faq .faq-item summary:hover { color: var(--cyan-ink); }
.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.page-faq .faq-plus {
  position: absolute;
  right: 10px;
  top: 50%;
  width: 20px;
  height: 20px;
  transform: translateY(-50%);
}
.page-faq .faq-plus::before,
.page-faq .faq-plus::after {
  content: "";
  position: absolute;
  background: var(--faq-accent);
  border-radius: 1px;
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.page-faq .faq-plus::before { left: 0; right: 0; top: 9px; height: 2px; }
.page-faq .faq-plus::after { top: 0; bottom: 0; left: 9px; width: 2px; }
.page-faq .faq-item[open] .faq-plus::after { transform: rotate(90deg); opacity: 0; }

.page-faq .faq-a {
  padding: 0 44px 22px 4px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--graphite);
  animation: faqFade .32s var(--ease);
}
.page-faq .faq-a p { margin: 0; }
.page-faq .faq-a strong {
  color: var(--deep);
  font-weight: 700;
  box-shadow: inset 0 -8px 0 rgba(255,106,43,.22);
}
.page-faq .faq-a a {
  color: var(--cyan-ink);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: var(--cyan);
  transition: color .2s var(--ease), text-decoration-color .2s var(--ease);
}
.page-faq .faq-a a:hover { color: var(--orange); text-decoration-color: var(--orange); }
.page-faq .faq-a .mono {
  color: var(--deep);
  font-size: 13.5px;
  padding: 1px 5px;
  background: var(--mist);
  border-radius: 2px;
}
@keyframes faqFade {
  from { opacity: 0; transform: translateY(-5px); }
  to   { opacity: 1; transform: none; }
}

/* 图 */
.page-faq .faq-figure { margin: 26px 0 0; }
.page-faq .figure-frame {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), 0 100%);
  border: 1px solid rgba(23,195,212,.22);
}
.page-faq .figure-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .figure-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--slate);
}

/* 收尾 */
.page-faq .faq-outro { padding-bottom: clamp(48px, 7vw, 88px); }
.page-faq .faq-outro-panel {
  display: grid;
  gap: 22px;
  padding: clamp(26px, 4vw, 44px);
  background: var(--ink);
  color: var(--paper);
  border-top: 3px solid var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), 0 100%);
}
.page-faq .outro-tag {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
}
.page-faq .faq-outro-copy h2 {
  margin: 0 0 10px;
  font-size: clamp(20px, 3vw, 27px);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--white);
}
.page-faq .faq-outro-copy p {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247,249,251,.78);
}
.page-faq .faq-outro-actions { display: flex; flex-wrap: wrap; gap: 12px; }

@media (min-width: 760px) {
  .page-faq .faq-outro-panel {
    grid-template-columns: 1.6fr 1fr;
    align-items: center;
    gap: 32px;
  }
  .page-faq .faq-outro-actions { justify-content: flex-end; }
}

@media (min-width: 1080px) {
  .page-faq .faq-group-head {
    display: grid;
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 30px;
    align-items: start;
  }
  .page-faq .faq-group-head .section-index { grid-column: 1 / -1; justify-self: start; }
  .page-faq .faq-group-head p { margin-top: 4px; }
  .page-faq .faq-figure { margin-top: 30px; }
  .page-faq .faq-item summary { padding-right: 60px; }
}

@media (max-width: 560px) {
  .page-faq .faq-group { border-left-width: 2px; padding-left: 14px; }
  .page-faq .faq-item summary { padding: 16px 44px 16px 0; }
  .page-faq .faq-a { padding: 0 0 20px; }
  .page-faq .faq-outro-actions .btn { flex: 1 1 100%; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-a { animation: none; }
  .page-faq .jump-link { transition: none; }
  .page-faq .jump-link:hover,
  .page-faq .jump-link:focus-visible { transform: none; }
  .page-faq .faq-plus::before,
  .page-faq .faq-plus::after { transition: none; }
  .page-faq .faq-hero { clip-path: none; }
  .page-faq .figure-frame { clip-path: none; }
  .page-faq .faq-outro-panel { clip-path: none; }
}
<<<END>>>