.page-faq {
  --faq-cut: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  --faq-line: rgba(53, 224, 214, .14);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: 36px 0 72px;
  overflow: hidden;
  background:
    radial-gradient(88% 68% at 6% 0%, rgba(53, 224, 214, .15), transparent 62%),
    radial-gradient(66% 58% at 102% 6%, rgba(255, 107, 74, .11), transparent 66%),
    linear-gradient(180deg, var(--ink-950) 0%, var(--sea-900) 82%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-cyan) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-cyan) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: .45;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 84%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 84%);
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}

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

.page-faq .faq-h1 {
  margin: 14px 0 0;
  max-width: 18ch;
  font-weight: 900;
  letter-spacing: .03em;
  line-height: 1.04;
  color: var(--paper-050);
}

.page-faq .faq-h1-em {
  display: block;
  color: var(--cyan-400);
}

.page-faq .faq-hero-lead {
  margin-top: 22px;
  max-width: 60ch;
  color: var(--ink-200);
}

/* 快速定位玻璃面板 */

.page-faq .faq-quick {
  position: relative;
  margin-top: 46px;
  padding: 22px 22px 24px;
  background: var(--glass);
  border: 1px solid var(--line-glass);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  clip-path: var(--faq-cut);
  box-shadow: var(--shadow-float);
}

.page-faq .faq-quick-title {
  margin: 0 0 16px;
  font-size: .8125rem;
  color: var(--cyan-400);
  letter-spacing: .08em;
}

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

.page-faq .faq-quick-list li a {
  display: block;
  padding: 12px 4px;
  border-top: 1px solid var(--line-soft);
  color: var(--ink-100);
  font-size: .9375rem;
  text-decoration: none;
  transition: color .25s var(--ease), padding-left .25s var(--ease);
}

.page-faq .faq-quick-list li:first-child a {
  border-top: 0;
}

.page-faq .faq-quick-list li a:hover,
.page-faq .faq-quick-list li a:focus-visible {
  color: var(--cyan-400);
  padding-left: 10px;
}

/* ---------- 分类导航 ---------- */

.page-faq .faq-section {
  padding: 60px 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-section--first {
  border-top: 0;
  padding-top: 8px;
}

.page-faq .faq-section .section-lead {
  color: var(--ink-200);
}

.page-faq .faq-cats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-cat {
  display: flex;
}

.page-faq .faq-cat-link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  padding: 22px 20px;
  background: var(--glass-soft);
  border: 1px solid var(--line-soft);
  clip-path: var(--faq-cut);
  text-decoration: none;
  color: inherit;
  transition: border-color .3s var(--ease), background .3s var(--ease), transform .3s var(--ease);
}

.page-faq .faq-cat-link:hover,
.page-faq .faq-cat-link:focus-visible {
  border-color: var(--cyan-400);
  background: rgba(53, 224, 214, .08);
  transform: translateY(-3px);
}

.page-faq .faq-cat-count {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan-400);
}

.page-faq .faq-cat-count small {
  margin-left: 5px;
  font-size: .75rem;
  font-weight: 500;
  color: var(--muted);
}

.page-faq .faq-cat-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ink-100);
}

.page-faq .faq-cat-desc {
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--muted);
}

/* 配图 */

.page-faq .faq-figure {
  margin: 40px 0 0;
  border: 1px solid var(--line-glass);
  background: var(--sea-800);
  clip-path: var(--faq-cut);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1100 / 680;
  object-fit: cover;
}

.page-faq .faq-figure--side img {
  aspect-ratio: 1280 / 720;
}

.page-faq .faq-figcaption {
  padding: 12px 16px;
  font-size: .8125rem;
  color: var(--muted);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 主体分区 ---------- */

.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.page-faq .faq-toc {
  padding: 18px 0 0;
}

.page-faq .faq-toc .toc-title {
  margin: 0 0 12px;
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--cyan-400);
}

.page-faq .faq-toc .toc-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-toc .toc-link {
  display: inline-block;
  padding: 6px 12px;
  font-size: .75rem;
  color: var(--ink-200);
  text-decoration: none;
  border: 1px solid var(--line-soft);
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .faq-toc .toc-link:hover,
.page-faq .faq-toc .toc-link:focus-visible {
  color: var(--cyan-400);
  border-color: var(--cyan-400);
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-fold {
  margin-top: 28px;
}

.page-faq .faq-item {
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-item:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 19px 2px;
  cursor: pointer;
  list-style: none;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink-100);
  transition: color .25s var(--ease);
}

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

.page-faq .faq-q::marker {
  content: "";
}

.page-faq .faq-q:hover {
  color: var(--cyan-400);
}

.page-faq .faq-item[open] > .faq-q {
  color: var(--cyan-400);
}

.page-faq .faq-q-mark {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  margin-left: auto;
  border: 1px solid var(--line-glass);
}

.page-faq .faq-q-mark::before,
.page-faq .faq-q-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--cyan-400);
  transform: translate(-50%, -50%);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}

.page-faq .faq-q-mark::before {
  width: 8px;
  height: 1.5px;
}

.page-faq .faq-q-mark::after {
  width: 1.5px;
  height: 8px;
}

.page-faq .faq-item[open] .faq-q-mark::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 2px 22px;
  max-width: 64ch;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--ink-200);
}

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

.page-faq .faq-a a {
  color: var(--cyan-400);
  text-underline-offset: 3px;
}

/* ---------- 步骤列表 ---------- */

.page-faq .step-list {
  position: relative;
  margin: 32px 0 0;
  padding: 0 0 0 30px;
  list-style: none;
}

.page-faq .step-list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan-400), rgba(53, 224, 214, .06));
}

.page-faq .step-list--compact {
  margin-top: 28px;
}

.page-faq .step-item {
  position: relative;
  padding-bottom: 28px;
}

.page-faq .step-item:last-child {
  padding-bottom: 0;
}

.page-faq .step-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 6px;
  width: 15px;
  height: 15px;
  background: var(--sea-900);
  border: 1px solid var(--cyan-400);
  transform: rotate(45deg);
}

.page-faq .step-num {
  margin: 0;
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--cyan-400);
}

.page-faq .step-title {
  margin: 6px 0 0;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ink-100);
}

.page-faq .step-text {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--ink-200);
}

.page-faq .step-text a {
  color: var(--cyan-400);
  text-underline-offset: 3px;
}

/* ---------- 绕路提示 ---------- */

.page-faq .faq-note {
  margin-top: 36px;
  padding: 24px 22px;
  background: rgba(255, 107, 74, .06);
  border-left: 2px solid var(--coral-500);
}

.page-faq .faq-note-title {
  margin: 0 0 14px;
  font-size: .8125rem;
  letter-spacing: .08em;
  color: var(--coral-500);
}

.page-faq .faq-note-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-note-list li {
  position: relative;
  padding: 8px 0 8px 20px;
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--ink-200);
}

.page-faq .faq-note-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 8px;
  height: 1px;
  background: var(--coral-500);
}

.page-faq .faq-note-list strong {
  color: var(--ink-100);
}

/* ---------- 大屏端图文并排 ---------- */

.page-faq .faq-screen-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}

.page-faq .faq-figure--side {
  margin-top: 28px;
}

/* ---------- 清单字段面板 ---------- */

.page-faq .faq-panel {
  margin-top: 30px;
  padding: 24px 22px;
  background: var(--glass);
  border: 1px solid var(--line-glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  clip-path: var(--faq-cut);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-panel .panel-kicker {
  margin: 0 0 18px;
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--cyan-400);
}

.page-faq .kv-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.page-faq .kv-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .kv-k {
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--amber-300);
}

.page-faq .kv-v {
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--ink-200);
}

/* ---------- 术语表 ---------- */

.page-faq .term-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 30px 0 0;
  border-top: 1px solid var(--line-soft);
}

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

.page-faq .term-key {
  margin: 0;
  font-size: .8125rem;
  letter-spacing: .05em;
  color: var(--cyan-400);
}

.page-faq .term-val {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--ink-200);
}

/* ---------- 联系 ---------- */

.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 30px;
}

.page-faq .faq-contact-card {
  padding: 24px 22px;
  background: var(--glass);
  border: 1px solid var(--line-glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  clip-path: var(--faq-cut);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-contact-card .panel-kicker {
  margin: 0 0 16px;
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--cyan-400);
}

.page-faq .contact-lines {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .contact-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 13px 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .contact-line:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .contact-k {
  flex: 0 0 auto;
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-faq .contact-v {
  flex: 1 1 auto;
  min-width: 0;
  font-size: .9375rem;
  word-break: break-word;
  color: var(--ink-100);
}

.page-faq .faq-contact-note {
  margin: 16px 0 0;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .prep-list {
  margin: 0;
  padding-left: 20px;
  list-style: decimal;
}

.page-faq .prep-list li {
  padding: 7px 0;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--ink-200);
}

.page-faq .faq-contact-card .action-row {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}

/* ---------- 焦点可见性 ---------- */

.page-faq a:focus-visible,
.page-faq summary:focus-visible,
.page-faq button:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
}

/* ---------- 展开时的轻量过渡 ---------- */

.page-faq .faq-item[open] > .faq-a {
  animation: faqReveal .3s var(--ease) both;
}

@keyframes faqReveal {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] > .faq-a {
    animation: none;
  }
  .page-faq .faq-cat-link:hover {
    transform: none;
  }
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: 48px 0 84px;
  }

  .page-faq .faq-quick {
    padding: 26px 28px 28px;
  }

  .page-faq .faq-quick-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 28px;
  }

  .page-faq .faq-quick-list li:nth-child(2) a {
    border-top: 0;
  }

  .page-faq .faq-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .kv-row {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 0 20px;
  }

  .page-faq .term-row {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 0 24px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 56px 0 96px;
  }

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

  .page-faq .faq-quick-list li:nth-child(3) a {
    border-top: 0;
  }

  .page-faq .faq-cats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-body {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 104px;
    padding-top: 8px;
  }

  .page-faq .faq-toc .toc-list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-faq .faq-toc .toc-link {
    display: block;
    padding: 7px 0 7px 12px;
    border: 0;
    border-left: 1px solid var(--line-soft);
  }

  .page-faq .faq-toc .toc-link:hover,
  .page-faq .faq-toc .toc-link:focus-visible {
    border-left-color: var(--cyan-400);
  }

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

  .page-faq .faq-section--first {
    padding-top: 8px;
  }

  .page-faq .faq-screen-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 40px;
  }

  .page-faq .faq-figure--side {
    margin-top: 34px;
  }

  .page-faq .faq-contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-body {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 64px;
  }

  .page-faq .faq-panel {
    padding: 28px 30px;
  }

  .page-faq .faq-contact-card {
    padding: 28px 26px;
  }
}
<<<END>>>