.page-faq {
  --faq-line: rgba(127, 227, 232, 0.20);
  --faq-edge: rgba(44, 79, 107, 0.55);
  background: var(--abyss);
  color: var(--text);
  padding-bottom: clamp(64px, 8vw, 120px);
  overflow-wrap: break-word;
}

.page-faq .container {
  max-width: var(--maxw);
}

.page-faq .faq-shell {
  padding-top: clamp(24px, 3.5vw, 48px);
}

/* 面包屑 */
.page-faq .faq-crumbs {
  margin-bottom: clamp(18px, 2.6vw, 32px);
  font-size: var(--fs-7);
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .faq-crumbs .crumbs a {
  color: var(--muted);
  text-decoration: none;
}

.page-faq .faq-crumbs .crumbs a:hover {
  color: var(--signal);
}

/* 首屏框景 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--faq-line);
  background:
    linear-gradient(158deg, rgba(18, 58, 87, 0.55) 0%, rgba(11, 35, 56, 0.88) 46%, rgba(6, 24, 38, 0.94) 100%);
  padding: clamp(24px, 3.6vw, 52px) clamp(18px, 3.2vw, 48px) clamp(22px, 3vw, 40px);
  margin-bottom: clamp(32px, 4.6vw, 60px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid rgba(127, 227, 232, 0.07);
  pointer-events: none;
}

.page-faq .faq-hero__trail {
  position: absolute;
  right: -30px;
  bottom: -26px;
  width: min(320px, 46%);
  height: 160px;
  background: repeating-linear-gradient(
    102deg,
    rgba(127, 227, 232, 0.16) 0 1px,
    transparent 1px 15px
  );
  -webkit-mask-image: linear-gradient(102deg, transparent 8%, #000 72%);
  mask-image: linear-gradient(102deg, transparent 8%, #000 72%);
  pointer-events: none;
}

.page-faq .faq-hero .eyebrow {
  position: relative;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--signal);
  margin: 0 0 clamp(14px, 2vw, 22px);
}

.page-faq .faq-hero__title {
  position: relative;
  margin: 0 0 clamp(16px, 2.2vw, 24px);
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 62px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--text);
  max-width: 22em;
}

.page-faq .faq-hero__lede {
  position: relative;
  margin: 0 0 clamp(24px, 3vw, 36px);
  max-width: 62ch;
  font-size: var(--fs-6);
  line-height: 1.85;
  color: var(--muted);
}

/* 高频问题快捷条 */
.page-faq .faq-quick {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-faq .faq-quick__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border: 1px solid var(--faq-line);
  background: rgba(18, 58, 87, 0.26);
  color: var(--text);
  text-decoration: none;
  font-size: var(--fs-6);
  line-height: 1.5;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-quick__item:hover,
.page-faq .faq-quick__item:focus-visible {
  background: var(--lift);
  border-color: rgba(127, 227, 232, 0.48);
  color: var(--text);
}

.page-faq .faq-quick__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--signal);
  border: 1px solid rgba(127, 227, 232, 0.34);
  padding: 3px 7px;
  line-height: 1.2;
}

/* 主体两列骨架 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-faq .faq-main {
  min-width: 0;
}

/* 章节 */
.page-faq .faq-sec {
  padding: clamp(26px, 3.6vw, 46px) 0;
  border-top: 1px solid var(--faq-edge);
}

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

.page-faq .faq-sec__lede {
  margin: 0 0 clamp(18px, 2.4vw, 28px);
  max-width: 62ch;
  font-size: var(--fs-6);
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-sec__lede--tail {
  margin-top: clamp(18px, 2.4vw, 26px);
  margin-bottom: clamp(16px, 2vw, 22px);
  padding-left: 14px;
  border-left: 2px solid var(--steel);
}

/* 配图 */
.page-faq .faq-figure {
  margin: 0 0 clamp(18px, 2.6vw, 28px);
  border: 1px solid var(--faq-line);
  background: var(--deep);
  aspect-ratio: auto;
  overflow: hidden;
}

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

.page-faq .faq-figure .figure__caption {
  padding: 10px 14px;
  border-top: 1px solid var(--faq-line);
  font-size: var(--fs-7);
  line-height: 1.6;
  color: var(--muted);
}

/* 可展开条目 */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .qa {
  border: 1px solid var(--faq-line);
  background: rgba(11, 35, 56, 0.62);
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .qa:hover {
  border-color: rgba(127, 227, 232, 0.34);
}

.page-faq .qa[open] {
  background: rgba(18, 58, 87, 0.55);
  border-color: rgba(127, 227, 232, 0.34);
}

.page-faq .qa__summary {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 44px 15px 17px;
  list-style: none;
  cursor: pointer;
  font-size: var(--fs-6);
  font-weight: 500;
  line-height: 1.65;
  color: var(--text);
  box-shadow: inset 2px 0 0 transparent;
  transition: box-shadow 0.18s var(--ease), color 0.18s var(--ease);
}

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

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

.page-faq .qa[open] > .qa__summary {
  color: var(--signal);
  box-shadow: inset 2px 0 0 var(--signal);
}

.page-faq .qa__summary::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 50%;
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--signal);
  transform: translateY(-50%) rotate(0deg);
  transition: transform 0.18s var(--ease);
}

.page-faq .qa[open] > .qa__summary::after {
  transform: translateY(-50%) rotate(180deg);
}

.page-faq .qa__step {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--signal);
  padding-top: 3px;
}

.page-faq .qa__q {
  min-width: 0;
}

.page-faq .qa__body {
  margin-top: 2px;
  padding: 0 17px 18px;
  border-top: 1px solid rgba(127, 227, 232, 0.12);
  font-size: var(--fs-6);
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .qa__body p {
  margin: 14px 0 0;
  max-width: 62ch;
}

.page-faq .qa__fail b {
  color: var(--flare);
  font-weight: 500;
}

/* 关联链接标签 */
.page-faq .qa__links {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .qa__links a {
  display: inline-block;
  padding: 5px 12px;
  border: 1px solid rgba(127, 227, 232, 0.28);
  color: var(--signal);
  font-size: var(--fs-7);
  line-height: 1.6;
  text-decoration: none;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .qa__links a:hover,
.page-faq .qa__links a:focus-visible {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--abyss);
}

.page-faq .faq-links-inline {
  margin-top: clamp(20px, 2.6vw, 28px);
}

/* 故障排查阶梯 */
.page-faq .faq-ladder {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-faq .faq-ladder__title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-edge);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--signal);
}

.page-faq .faq-ladder__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-ladder__steps li {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 10px 0;
}

.page-faq .faq-ladder__steps li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 24px;
  bottom: 22px;
  width: 1px;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(127, 227, 232, 0.34) 0 4px,
    transparent 4px 10px
  );
}

.page-faq .faq-ladder__steps li:last-child::before {
  display: none;
}

.page-faq .faq-ladder__idx {
  position: relative;
  z-index: 1;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(127, 227, 232, 0.3);
  background: var(--abyss);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--signal);
}

.page-faq .faq-ladder__steps p {
  margin: 0;
  padding-top: 6px;
  font-size: var(--fs-6);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-ladder__steps b {
  color: var(--text);
  font-weight: 500;
}

/* 人工通道 */
.page-faq .faq-human {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid var(--faq-line);
  background: var(--faq-edge);
}

.page-faq .faq-human__cell {
  background: var(--deep);
  padding: clamp(16px, 2.2vw, 24px);
  min-width: 0;
}

.page-faq .faq-human__k {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-faq .faq-human__v {
  display: block;
  font-size: var(--fs-6);
  line-height: 1.6;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-faq .faq-human__v--flare {
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
  color: var(--flare);
}

.page-faq .faq-order {
  list-style: none;
  counter-reset: ord;
  margin: clamp(16px, 2.2vw, 24px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-order li {
  position: relative;
  padding-left: 34px;
  font-size: var(--fs-6);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-order li::before {
  counter-increment: ord;
  content: counter(ord, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--flare);
}

/* 右侧问题索引 */
.page-faq .faq-aside {
  min-width: 0;
}

.page-faq .faq-aside__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-faq .faq-aside__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-aside__list a {
  display: flex;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  color: var(--muted);
  font-size: var(--fs-7);
  line-height: 1.5;
  text-decoration: none;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-aside__list a:hover,
.page-faq .faq-aside__list a:focus-visible {
  background: var(--lift);
  border-color: var(--faq-line);
  color: var(--text);
}

.page-faq .faq-aside__idx {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--signal);
}

/* 显现动效 */
.page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}

.page-faq [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* 断点 */
@media (min-width: 640px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 232px;
    gap: clamp(40px, 4vw, 64px);
  }

  .page-faq .faq-aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    border-left: 1px solid var(--faq-line);
    padding-left: 20px;
  }

  .page-faq .faq-ladder {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(20px, 2.4vw, 30px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal] {
    opacity: 1;
    transform: none;
    transition: opacity 0.12s linear;
  }

  .page-faq .qa__summary::after {
    transition: none;
  }
}
<<<END>>>