.page-faq {
  --faq-gap: clamp(28px, 5vw, 60px);
  --faq-edge: rgba(29, 68, 89, 0.85);
  background: var(--ink-900);
  color: var(--mist);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq h1,
.page-faq h2 {
  font-family: var(--font-head);
  margin: 0;
}

.page-faq p {
  margin: 0 0 12px;
}

.page-faq .mono {
  font-family: var(--font-mono);
  color: var(--cyan-soft);
  letter-spacing: 0.02em;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 3.5vw, 34px) 0 clamp(36px, 6vw, 72px);
  background:
    radial-gradient(110% 80% at 6% -14%, rgba(34, 230, 211, 0.18), transparent 58%),
    radial-gradient(84% 66% at 100% 2%, rgba(255, 90, 31, 0.16), transparent 62%),
    linear-gradient(180deg, var(--ink-800), var(--ink-900));
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(114deg, rgba(29, 68, 89, 0.5) 0 1px, transparent 1px 104px);
  opacity: 0.55;
  pointer-events: none;
}

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(20px, 4vw, 40px);
  align-items: center;
}

.page-faq .faq-hero h1 {
  font-size: clamp(36px, 9vw, 78px);
  font-weight: 900;
  line-height: 1.03;
  letter-spacing: -0.02em;
  margin: 12px 0 18px;
}

.page-faq .faq-hero__lead {
  max-width: 46ch;
  color: var(--steel);
  font-size: clamp(15px, 1.7vw, 17px);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-hero__media {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--panel), var(--ink-800));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 32px), calc(100% - 32px) 100%, 0 100%);
}

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

.page-faq .faq-hero__media figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--steel);
  padding: 10px 2px 2px;
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  padding: var(--faq-gap) 0 clamp(40px, 7vw, 80px);
}

.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-rail {
  display: grid;
  gap: 16px;
}

/* 字母索引墙缩略 */
.page-faq .faq-alpha {
  border: 1px solid var(--line);
  background: linear-gradient(155deg, var(--panel), var(--ink-800));
  padding: 14px;
}

.page-faq .faq-alpha__title {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--steel);
  margin: 0 0 12px;
  text-transform: uppercase;
}

.page-faq .faq-alpha__grid {
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: 4px;
}

.page-faq .faq-alpha__cell {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-align: center;
  padding: 5px 0;
  color: var(--steel);
  border: 1px solid var(--faq-edge);
  background: rgba(4, 18, 28, 0.6);
}

.page-faq .faq-alpha__cell--on {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
  font-weight: 700;
}

.page-faq .faq-alpha__cell--hot {
  color: var(--orange-soft);
  border-color: rgba(255, 90, 31, 0.55);
}

/* 筛选 */
.page-faq .faq-filter {
  border: 1px solid var(--line);
  background: rgba(8, 30, 44, 0.72);
  padding: 14px;
}

.page-faq .faq-filter__label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--steel);
  margin: 0 0 12px;
  text-transform: uppercase;
}

.page-faq .faq-filter .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-filter .filter-btn {
  font-size: 12.5px;
}

/* 舷窗 */
.page-faq .faq-hatch {
  border: 1px solid rgba(201, 168, 106, 0.42);
  background: linear-gradient(150deg, rgba(201, 168, 106, 0.14), rgba(8, 30, 44, 0.92));
}

.page-faq .faq-hatch > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 13px 15px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 13.5px;
  letter-spacing: 0.05em;
  color: var(--sand);
}

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

.page-faq .faq-hatch > summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--orange-soft);
  font-size: 15px;
}

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

.page-faq .faq-hatch__body {
  padding: 0 15px 15px;
  font-size: 13px;
  color: var(--steel);
}

.page-faq .faq-hatch__body p {
  margin: 0 0 6px;
}

.page-faq .faq-hatch__num {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--sand);
  font-weight: 700;
}

.page-faq .faq-hatch__ver {
  font-family: var(--font-mono);
  color: var(--cyan-soft);
}

.page-faq .faq-hatch__body .btn {
  margin-top: 10px;
}

/* ---------- 问题列表 ---------- */
.page-faq .faq-group {
  margin-bottom: clamp(30px, 5vw, 52px);
}

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

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

.page-faq .faq-group__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
  flex: none;
}

.page-faq .faq-group h2 {
  font-size: clamp(21px, 3.2vw, 29px);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.page-faq .faq-group__note {
  color: var(--steel);
  font-size: 14px;
  max-width: 52ch;
  margin: 12px 0 18px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-left: 3px solid var(--faq-edge);
  background: linear-gradient(180deg, rgba(14, 42, 58, 0.72), rgba(8, 30, 44, 0.72));
  margin-bottom: 10px;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: var(--cyan-soft);
}

.page-faq .faq-item[open] {
  border-left-color: var(--cyan);
  background: linear-gradient(180deg, rgba(14, 42, 58, 0.96), rgba(8, 30, 44, 0.96));
}

.page-faq .faq-item > summary {
  list-style: none;
  cursor: pointer;
  position: relative;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 15px 46px 15px 15px;
}

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

.page-faq .faq-item__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--sand);
  padding-top: 3px;
}

.page-faq .faq-item__q {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.55;
}

.page-faq .faq-item__sign {
  position: absolute;
  right: 15px;
  top: 17px;
  width: 18px;
  height: 18px;
  border: 1px solid var(--line);
  background: rgba(4, 18, 28, 0.6);
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--cyan);
}

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

.page-faq .faq-item__sign::after {
  width: 1.5px;
  height: 8px;
  transition: opacity 0.2s var(--ease);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 clamp(16px, 4vw, 24px) 18px clamp(40px, 7vw, 44px);
  color: var(--steel);
  font-size: 14.5px;
}

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

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

.page-faq .faq-item__a strong {
  color: var(--mist);
  font-weight: 700;
}

.page-faq .faq-steps {
  list-style: none;
  counter-reset: step;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 7px;
}

.page-faq .faq-steps li {
  counter-increment: step;
  display: flex;
  gap: 10px;
  font-size: 13.5px;
  color: var(--mist);
}

.page-faq .faq-steps li::before {
  content: counter(step, decimal-leading-zero);
  flex: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--orange);
  padding-top: 3px;
}

.page-faq .faq-fields {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.page-faq .faq-fields span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.03em;
  color: var(--mist);
  background: rgba(34, 230, 211, 0.1);
  border: 1px solid rgba(34, 230, 211, 0.3);
  padding: 3px 8px;
}

/* ---------- 客服模块 ---------- */
.page-faq .faq-service {
  border: 1px solid var(--line);
  background:
    linear-gradient(150deg, rgba(201, 168, 106, 0.1), rgba(4, 18, 28, 0.9) 55%),
    var(--ink-800);
  padding: clamp(16px, 3vw, 26px);
  margin-top: 16px;
  display: grid;
  gap: 20px;
}

.page-faq .faq-service .faq-item {
  background: rgba(8, 30, 44, 0.7);
}

.page-faq .faq-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
}

.page-faq .faq-contact__label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--steel);
  text-transform: uppercase;
}

.page-faq .faq-contact .mono {
  font-size: 13.5px;
}

.page-faq .faq-service__note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--steel);
}

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

.page-faq .faq-service__media {
  margin: 0;
  padding: 8px;
  border: 1px solid var(--line);
  background: var(--panel);
}

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

.page-faq .faq-service__media figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--steel);
  padding: 8px 2px 2px;
}

/* ---------- 尾部引导 ---------- */
.page-faq .faq-tail {
  margin-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 22px 0;
  background: linear-gradient(90deg, rgba(255, 90, 31, 0.08), transparent 62%);
}

.page-faq .faq-tail > p {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(16px, 2vw, 19px);
  color: var(--mist);
  max-width: 44ch;
}

.page-faq .faq-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0;
}

.page-faq .faq-tail__links {
  font-size: 12.5px;
  color: var(--steel);
  margin: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-faq .faq-service {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.72fr);
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: 288px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-alpha__grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-faq .faq-item__a {
    max-width: 62ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__sign::after {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>