.page-faq {
  --faq-side: 236px;
  --faq-gap: clamp(18px, 2.6vw, 36px);
  --faq-panel: rgba(12, 27, 38, 0.74);
  --faq-panel-open: #0C1B26;
  background: var(--ink);
  color: var(--warm);
  padding-top: calc(var(--header-h) + 18px);
}

.page-faq .breadcrumb {
  margin-bottom: clamp(12px, 2vw, 22px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(6px, 1vw, 14px) 0 clamp(24px, 4vw, 46px);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(22px, 3vw, 40px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -14%;
  width: min(620px, 76%);
  height: 340px;
  background:
    linear-gradient(132deg, rgba(45, 226, 230, 0.18), rgba(255, 122, 26, 0.1) 52%, rgba(7, 16, 25, 0) 76%);
  clip-path: polygon(30% 0, 100% 0, 100% 74%, 0 100%);
  pointer-events: none;
}

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

.page-faq .faq-hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  max-width: 20ch;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero .lede {
  max-width: 62ch;
  color: var(--warm);
  opacity: 0.92;
  line-height: 1.8;
  margin: 0 0 22px;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin: 0;
}

.page-faq .faq-hero-stat {
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--cyan);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  background: var(--faq-panel);
  padding: 12px 14px;
}

.page-faq .faq-hero-stat:nth-child(2) {
  border-left-color: var(--orange);
}

.page-faq .faq-hero-stat dt {
  font-size: 12px;
  color: var(--mute);
  margin-bottom: 6px;
}

.page-faq .faq-hero-stat dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.page-faq .faq-hero-stat .data-num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-hero-stat .data-num--orange {
  color: var(--orange);
}

.page-faq .faq-unit {
  font-size: 12px;
  color: var(--mute);
}

/* ---------- 主体栅格 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding-bottom: clamp(46px, 7vw, 90px);
}

.page-faq .faq-nav {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--glass-bg);
  padding: 12px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-nav-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--mute);
  margin: 0 0 8px;
  padding: 0 8px;
}

.page-faq .faq-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: max-content;
  gap: 6px;
}

.page-faq .faq-nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-s);
  color: var(--warm);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-nav-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

.page-faq .faq-nav-link:hover,
.page-faq .faq-nav-link:focus-visible {
  background: rgba(45, 226, 230, 0.12);
  border-color: var(--line-cyan);
  outline: none;
}

/* ---------- 问题组 ---------- */
.page-faq .faq-group {
  margin-bottom: clamp(26px, 4vw, 48px);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

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

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-group-title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 26px);
  letter-spacing: -0.02em;
  color: var(--warm);
}

.page-faq .faq-group-head .tag {
  margin-left: auto;
}

.page-faq .faq-group-note {
  margin: 12px 0 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mute);
  max-width: 62ch;
}

/* ---------- 图文块 ---------- */
.page-faq .faq-figure {
  margin: 0 0 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--faq-panel);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-faq .faq-figure .media-caption {
  padding: 10px 14px 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 问答项 ---------- */
.page-faq .faq-q {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  background: var(--faq-panel);
  margin-bottom: 8px;
  overflow: hidden;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-q[open] {
  border-color: var(--line-cyan);
  background: var(--faq-panel-open);
}

.page-faq .faq-q > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.6vw, 16.5px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--warm);
  transition: color 0.2s var(--ease);
}

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

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

.page-faq .faq-q > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-faq .faq-q > summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
  color: var(--orange);
}

.page-faq .faq-q[open] > summary::after {
  content: "−";
}

.page-faq .faq-a {
  padding: 0 16px 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--warm);
  opacity: 0.9;
}

.page-faq .faq-a p {
  margin: 0 0 10px;
  max-width: 64ch;
}

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

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

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

.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 10px 0 12px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-step {
  counter-increment: faqstep;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding-left: 0;
}

.page-faq .faq-step::before {
  content: counter(faqstep, decimal-leading-zero);
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--orange);
}

.page-faq .faq-tip {
  border-left: 2px solid var(--orange);
  background: rgba(255, 122, 26, 0.09);
  padding: 10px 14px;
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--warm);
}

/* ---------- 联系信息卡 ---------- */
.page-faq .faq-contact-card {
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-m);
  background: rgba(13, 91, 91, 0.28);
  padding: 4px 16px;
  margin: 0 0 16px;
}

.page-faq .faq-contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-contact-row:last-child {
  border-bottom: none;
}

.page-faq .faq-contact-row .contact-label {
  min-width: 96px;
  font-size: 13px;
  color: var(--mute);
}

.page-faq .faq-contact-row .contact-value {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--warm);
  word-break: break-word;
}

/* ---------- 延伸入口 ---------- */
.page-faq .faq-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-faq .faq-link-card {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 16px 44px 16px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--console);
  color: var(--warm);
  text-decoration: none;
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-link-card:hover,
.page-faq .faq-link-card:focus-visible {
  border-color: var(--line-cyan);
  background: var(--glass);
  transform: translateY(-2px);
  outline: none;
}

.page-faq .faq-link-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-faq .faq-link-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--mute);
}

.page-faq .faq-link-go {
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-links {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-side) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-nav {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    max-height: calc(100vh - var(--header-h) - 44px);
    overflow-y: auto;
  }

  .page-faq .faq-nav-list {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    gap: 2px;
  }

  .page-faq .faq-nav-link {
    white-space: normal;
  }

  .page-faq .faq-hero h1 {
    max-width: 24ch;
  }
}

@media (max-width: 520px) {
  .page-faq .faq-group-head .tag {
    margin-left: 0;
  }

  .page-faq .faq-hero-stat dd .data-num {
    font-size: 22px;
  }

  .page-faq .faq-q > summary {
    padding: 14px 13px;
  }

  .page-faq .faq-a {
    padding: 0 13px 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-link-card,
  .page-faq .faq-q,
  .page-faq .faq-nav-link {
    transition: none;
  }

  .page-faq .faq-link-card:hover,
  .page-faq .faq-link-card:focus-visible {
    transform: none;
  }
}
<<<END>>>