.page-faq {
  --faq-rail: 224px;
  --faq-gap: 20px;
  background: var(--c-abyss);
  color: var(--c-white);
  overflow-x: clip;
}

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

.page-faq .num {
  font-family: var(--font-mono);
  color: var(--c-amber);
  letter-spacing: .04em;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  border-bottom: 1px solid var(--line-glow);
  background:
    radial-gradient(110% 90% at 88% 0%, rgba(35, 199, 180, .20), transparent 62%),
    linear-gradient(158deg, var(--c-deep) 0%, var(--c-abyss) 72%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(143, 163, 176, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 163, 176, .07) 1px, transparent 1px);
  background-size: 48px 48px;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
  padding-block: 40px 48px;
}

.page-faq .faq-hero h1 {
  margin: 18px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.9rem, 7vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -.02em;
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 52ch;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: rgba(247, 251, 255, .8);
}

.page-faq .faq-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-hero__fig {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--line-glow);
  background: rgba(10, 36, 56, .62);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-faq .faq-hero__fig img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(1.05);
}

/* ---------- 检索操作台 ---------- */
.page-faq .faq-console {
  padding-block: 32px 36px;
  background: linear-gradient(180deg, var(--c-abyss) 0%, var(--c-deep) 100%);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-console__bar {
  display: grid;
  gap: 10px;
  padding: 16px 18px 18px;
  border: 1px solid var(--line-soft);
  background: var(--c-abyss);
}

.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-glow);
  transition: box-shadow .26s var(--ease);
}

.page-faq .faq-search:focus-within {
  box-shadow: 0 0 0 2px var(--c-glow);
}

.page-faq .faq-search__ico {
  flex: none;
  color: var(--c-glow);
  font-size: 1.05rem;
  line-height: 1;
}

.page-faq .faq-search input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 6px 0;
  border: 0;
  background: transparent;
  color: var(--c-white);
  font-family: var(--font-body);
  font-size: 1rem;
  outline: none;
}

.page-faq .faq-search input::placeholder {
  color: rgba(143, 163, 176, .78);
}

.page-faq .faq-console__hint {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--c-silver);
  line-height: 1.7;
}

.page-faq .faq-entries {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-entries a {
  display: block;
  padding: 14px 16px 16px;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--c-cyan);
  background: var(--c-deep);
  text-decoration: none;
  color: inherit;
  transition: transform .26s var(--ease), border-color .26s var(--ease), background .26s var(--ease);
}

.page-faq .faq-entries a:hover,
.page-faq .faq-entries a:focus-visible {
  transform: translateY(-3px);
  border-left-color: var(--c-glow);
  background: var(--c-mid);
}

.page-faq .faq-entries__no {
  display: block;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--c-glow);
}

.page-faq .faq-entries__t {
  display: block;
  margin-top: 6px;
  font-size: 1.0625rem;
  font-weight: 700;
}

.page-faq .faq-entries__d {
  display: block;
  margin-top: 6px;
  font-size: .875rem;
  line-height: 1.7;
  color: rgba(247, 251, 255, .72);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 28px;
  padding-block: 36px 64px;
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--c-silver);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-rail__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line-soft);
  color: rgba(247, 251, 255, .74);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  text-decoration: none;
  white-space: nowrap;
  transition: color .22s var(--ease), border-color .22s var(--ease), background .22s var(--ease);
}

.page-faq .faq-rail__list span {
  color: var(--c-glow);
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible,
.page-faq .faq-rail__list a.is-active {
  color: var(--c-white);
  border-color: var(--c-glow);
  background: var(--c-mid);
}

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

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding-block: 34px;
  border-top: 1px solid var(--line-soft);
}

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

.page-faq .faq-group h2 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 4.4vw, 2.1rem);
  line-height: 1.22;
  letter-spacing: -.01em;
}

.page-faq .faq-group__intro {
  margin: 14px 0 0;
  max-width: 64ch;
  line-height: 1.85;
  color: rgba(247, 251, 255, .78);
}

.page-faq .faq-figure {
  margin: 26px 0 0;
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--c-cyan);
  padding: 8px;
  background: var(--c-deep);
}

.page-faq .faq-figure img {
  width: 100%;
  aspect-ratio: 7 / 3;
  object-fit: cover;
}

/* ---------- 进入路径步骤 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-step {
  position: relative;
  padding: 20px 18px 20px;
  border: 1px solid var(--line-soft);
  background: linear-gradient(168deg, var(--c-deep) 0%, rgba(4, 18, 31, .9) 100%);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 44px;
  height: 2px;
  background: var(--c-hot);
}

.page-faq .faq-step__no {
  display: inline-block;
  padding: 3px 9px;
  background: var(--c-glow);
  color: var(--c-abyss);
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .16em;
}

.page-faq .faq-step__title {
  margin: 12px 0 0;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-step__meta {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--c-amber);
}

.page-faq .faq-step__body {
  margin: 12px 0 0;
  line-height: 1.85;
  color: rgba(247, 251, 255, .86);
}

.page-faq .faq-step__ok {
  margin: 10px 0 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--c-cyan);
}

.page-faq .faq-step__ok strong {
  color: var(--c-white);
}

/* ---------- 折叠面板 ---------- */
.page-faq .faq-spoil {
  margin-top: 14px;
  padding-left: 12px;
  border-left: 2px solid var(--line-soft);
  transition: border-color .26s var(--ease);
}

.page-faq .faq-spoil[open] {
  border-left-color: var(--c-glow);
}

.page-faq .faq-spoil summary {
  cursor: pointer;
  list-style: none;
  padding: 4px 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--c-silver);
}

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

.page-faq .faq-spoil summary::before {
  content: "＋ ";
  color: var(--c-glow);
}

.page-faq .faq-spoil[open] summary::before {
  content: "－ ";
}

.page-faq .faq-spoil summary:hover,
.page-faq .faq-spoil summary:focus-visible {
  color: var(--c-white);
}

.page-faq .faq-spoil p {
  margin: 6px 0 0;
  font-size: .94rem;
  line-height: 1.82;
  color: rgba(247, 251, 255, .76);
}

/* ---------- 筛选顺序 ---------- */
.page-faq .faq-order {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-order li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 16px 18px;
  border: 1px solid var(--line-soft);
  background: var(--c-deep);
}

.page-faq .faq-order__no {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  background: var(--c-mid);
  border: 1px solid var(--c-cyan);
  color: var(--c-glow);
  font-family: var(--font-mono);
  font-size: 1rem;
}

.page-faq .faq-order h3 {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
}

.page-faq .faq-order p {
  margin: 8px 0 0;
  line-height: 1.8;
  font-size: .94rem;
  color: rgba(247, 251, 255, .78);
}

.page-faq .faq-note {
  margin-top: 20px;
  padding: 18px 18px 18px 20px;
  background: var(--c-cream);
  border-left: 3px solid var(--c-hot);
  color: var(--c-ink);
}

.page-faq .faq-note p {
  margin: 0;
  font-size: .94rem;
  line-height: 1.85;
}

.page-faq .faq-note p + p {
  margin-top: 10px;
}

.page-faq .faq-note .num {
  color: var(--c-hot);
  font-weight: 700;
}

/* ---------- 格式说明 ---------- */
.page-faq .faq-formats {
  margin: 26px 0 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-format {
  padding: 16px 16px 18px;
  background: var(--c-deep);
  border-top: 2px solid var(--c-cyan);
}

.page-faq .faq-format dt {
  font-family: var(--font-mono);
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--c-glow);
}

.page-faq .faq-format dd {
  margin: 10px 0 0;
  font-size: .92rem;
  line-height: 1.78;
  color: rgba(247, 251, 255, .8);
}

.page-faq .faq-accordion {
  margin-top: 22px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line-soft);
  border-left: 2px solid transparent;
  padding-left: 14px;
  transition: border-color .26s var(--ease), background .26s var(--ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--c-glow);
  background: rgba(18, 58, 87, .34);
}

.page-faq .faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 4px 16px 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-white);
}

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

.page-faq .faq-item summary::after {
  content: "＋";
  float: right;
  margin-left: 12px;
  color: var(--c-glow);
  font-family: var(--font-mono);
}

.page-faq .faq-item[open] summary::after {
  content: "－";
}

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--c-glow);
}

.page-faq .faq-item p {
  margin: 0 0 18px;
  max-width: 64ch;
  font-size: .94rem;
  line-height: 1.85;
  color: rgba(247, 251, 255, .78);
}

/* ---------- 订阅与账号分栏 ---------- */
.page-faq .faq-split {
  margin-top: 26px;
  display: grid;
  gap: 16px;
}

.page-faq .faq-split__col {
  padding: 18px 18px 20px;
  border: 1px solid var(--line-soft);
  border-bottom: 3px solid var(--c-mid);
  background: var(--c-deep);
}

.page-faq .faq-split__col h3 {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
}

.page-faq .faq-split__col p {
  margin: 10px 0 0;
  font-size: .94rem;
  line-height: 1.82;
  color: rgba(247, 251, 255, .8);
}

.page-faq .faq-split__col a {
  color: var(--c-glow);
  text-decoration: none;
  border-bottom: 1px solid var(--line-glow);
}

.page-faq .faq-split__col a:hover,
.page-faq .faq-split__col a:focus-visible {
  color: var(--c-white);
  border-bottom-color: var(--c-hot);
}

.page-faq .faq-inline-cta {
  margin: 22px 0 0;
}

.page-faq .faq-check {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-check li {
  position: relative;
  padding: 14px 16px 16px 44px;
  border: 1px solid var(--line-soft);
  background: rgba(10, 36, 56, .72);
  font-size: .94rem;
  line-height: 1.8;
  color: rgba(247, 251, 255, .8);
}

.page-faq .faq-check li::before {
  content: "▸";
  position: absolute;
  left: 16px;
  top: 14px;
  color: var(--c-glow);
  font-size: 1rem;
}

.page-faq .faq-check strong {
  color: var(--c-white);
}

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

.page-faq .faq-list li {
  position: relative;
  padding-left: 18px;
  font-size: .92rem;
  line-height: 1.78;
  color: rgba(247, 251, 255, .78);
}

.page-faq .faq-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 2px;
  background: var(--c-hot);
}

/* ---------- 延伸入口 ---------- */
.page-faq .faq-more {
  margin-top: 40px;
  padding: 26px 20px 28px;
  background: linear-gradient(150deg, var(--c-mid) 0%, var(--c-deep) 68%);
  border-left: 3px solid var(--c-glow);
}

.page-faq .faq-more h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.2rem, 3.6vw, 1.6rem);
  line-height: 1.3;
}

.page-faq .faq-more__grid {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-more__grid a {
  display: block;
  height: 100%;
  padding: 14px 16px 16px;
  border: 1px solid var(--line-soft);
  background: rgba(4, 18, 31, .66);
  text-decoration: none;
  transition: transform .26s var(--ease), border-color .26s var(--ease);
}

.page-faq .faq-more__grid a:hover,
.page-faq .faq-more__grid a:focus-visible {
  transform: translateY(-3px);
  border-color: var(--c-glow);
}

.page-faq .faq-more__grid strong {
  display: block;
  color: var(--c-white);
  font-size: 1rem;
}

.page-faq .faq-more__grid span {
  display: block;
  margin-top: 8px;
  font-size: .88rem;
  line-height: 1.75;
  color: rgba(247, 251, 255, .74);
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__inner {
    padding-block: 56px 64px;
  }

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

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

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

  .page-faq .faq-split--two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 52px;
    align-items: center;
    padding-block: 76px 84px;
  }

  .page-faq .faq-entries {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 52px;
    padding-block: 56px 96px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 112px;
    align-self: start;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__list a {
    width: 100%;
    padding: 9px 12px;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
  }

  .page-faq .faq-rail__list a:hover,
  .page-faq .faq-rail__list a:focus-visible,
  .page-faq .faq-rail__list a.is-active {
    border-left-color: var(--c-glow);
    background: var(--c-mid);
  }

  .page-faq .faq-group {
    padding-block: 44px;
  }

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

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

  .page-faq .faq-split--two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-more {
    padding: 32px 28px 34px;
  }

  .page-faq .faq-more__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-entries a,
  .page-faq .faq-more__grid a {
    transition: none;
  }

  .page-faq .faq-entries a:hover,
  .page-faq .faq-entries a:focus-visible,
  .page-faq .faq-more__grid a:hover,
  .page-faq .faq-more__grid a:focus-visible {
    transform: none;
  }
}