.page-faq {
  --faq-gap: clamp(20px, 4vw, 40px);
  --faq-gap-lg: clamp(30px, 5.5vw, 60px);
  --faq-radius: 22px;
  --faq-pad: clamp(18px, 3.2vw, 28px);
  color: var(--frost);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 56px) 0 clamp(38px, 6vw, 76px);
  background:
    radial-gradient(120% 96% at 88% -14%, rgba(34, 230, 210, 0.16), transparent 58%),
    radial-gradient(92% 74% at -12% 22%, rgba(255, 106, 43, 0.15), transparent 58%),
    var(--ink-900);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .breadcrumbs {
  margin-bottom: 22px;
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  color: var(--mist);
}

.page-faq .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(143, 163, 196, 0.5);
}

.page-faq .breadcrumb-list a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease);
}

.page-faq .breadcrumb-list a:hover {
  color: var(--neon);
}

.page-faq .faq-title {
  margin: 0 0 20px;
  font-size: clamp(34px, 7vw, 74px);
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--frost);
  text-wrap: balance;
}

.page-faq .faq-lede {
  max-width: 640px;
  margin: 0 0 clamp(26px, 4vw, 40px);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-facts li {
  padding: 16px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-soft);
  background: rgba(22, 35, 63, 0.62);
  border-bottom-left-radius: 5px;
}

.page-faq .faq-fact-num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: var(--neon);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-facts li:nth-child(2) .faq-fact-num {
  color: var(--flame);
}

.page-faq .faq-facts li:nth-child(4) .faq-fact-num {
  color: var(--gold);
}

.page-faq .faq-fact-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 章节跳转条 ---------- */
.page-faq .faq-topics {
  background: var(--ink-800);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-topics-list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 14px 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-topics-list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-topics-list a {
  display: inline-block;
  white-space: nowrap;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
  color: var(--mist);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease),
              background-color var(--dur-fast) var(--ease);
}

.page-faq .faq-topics-list a:hover,
.page-faq .faq-topics-list a:focus-visible {
  color: var(--frost);
  border-color: var(--line-neon);
  background: var(--neon-soft);
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-section {
  --accent: var(--neon);
  padding: clamp(42px, 7vw, 88px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-section--flame {
  --accent: var(--flame);
}

.page-faq .faq-section--gold {
  --accent: var(--gold);
}

.page-faq .faq-section--neon {
  --accent: var(--neon);
}

.page-faq .faq-section--deep {
  background: var(--ink-800);
}

.page-faq .faq-head {
  max-width: 700px;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-faq .faq-h2 {
  margin: 0 0 14px;
  font-size: clamp(25px, 4.4vw, 42px);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--frost);
}

.page-faq .faq-h2::before {
  content: "";
  display: block;
  width: 44px;
  height: 4px;
  margin-bottom: 16px;
  border-radius: 2px;
  background: var(--accent);
}

.page-faq .faq-sub {
  margin: 0;
  font-size: 16px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 两栏分屏 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: var(--faq-gap-lg);
}

/* ---------- 步骤 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: var(--faq-pad);
  background: var(--ink-700);
  border: 1px solid var(--line-soft);
  border-radius: var(--faq-radius);
  border-top-left-radius: 6px;
  transition: transform var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease);
}

.page-faq .faq-step:hover {
  transform: translateY(-4px);
  border-color: var(--line-neon);
}

.page-faq .faq-step-num {
  font-family: var(--font-num);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--neon);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-step-title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--frost);
}

.page-faq .faq-step-text {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-step-meta {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--flame);
}

/* ---------- 图片容器 ---------- */
.page-faq .faq-media {
  margin: 0;
  overflow: hidden;
  border-radius: var(--faq-radius);
  border: 1px solid var(--line-neon);
  background: var(--ink-700);
}

.page-faq .faq-media--tall img {
  aspect-ratio: 5 / 6;
  object-fit: cover;
}

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

.page-faq .faq-media figcaption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 问答手风琴 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-list--spaced {
  margin-top: clamp(26px, 4vw, 44px);
}

.page-faq .faq-item {
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--dur-fast) var(--ease),
              background-color var(--dur-fast) var(--ease);
}

.page-faq .faq-item[open] {
  background: var(--ink-700);
  border-color: var(--line-neon);
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--frost);
  border-left: 3px solid transparent;
  transition: border-color var(--dur-fast) var(--ease);
}

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

.page-faq .faq-q::after {
  content: "";
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--neon);
  border-bottom: 2px solid var(--neon);
  transform: rotate(45deg) translateY(-3px);
  transition: transform var(--dur-fast) var(--ease);
}

.page-faq .faq-item[open] .faq-q {
  border-left-color: var(--neon);
}

.page-faq .faq-item[open] .faq-q::after {
  transform: rotate(-135deg) translateY(-3px);
}

.page-faq .faq-a {
  padding: 0 18px 18px 21px;
  border-left: 3px solid transparent;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-item[open] .faq-a {
  border-left-color: var(--neon);
}

/* ---------- 数据面板指标 ---------- */
.page-faq .faq-metrics {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .faq-metric {
  padding: 20px 18px;
  background: var(--ink-700);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  border-bottom-left-radius: 6px;
  transition: border-color var(--dur-fast) var(--ease);
}

.page-faq .faq-metric:hover {
  border-color: var(--line-neon);
}

.page-faq .faq-metric-name {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--frost);
}

.page-faq .faq-metric-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-note {
  margin-top: clamp(24px, 4vw, 40px);
  padding: var(--faq-pad);
  border-radius: var(--faq-radius);
  border: 1px solid var(--line-neon);
  background: linear-gradient(150deg, rgba(34, 230, 210, 0.10), rgba(6, 8, 15, 0) 68%);
}

.page-faq .faq-note p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--frost);
}

.page-faq .faq-note-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 14px !important;
}

/* ---------- 会员等级 ---------- */
.page-faq .faq-tiers {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .faq-tier {
  padding: 22px 18px;
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  border-radius: var(--faq-radius);
  border-top-left-radius: 6px;
  transition: transform var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease);
}

.page-faq .faq-tier:hover {
  transform: translateY(-4px);
  border-color: var(--line-neon);
}

.page-faq .faq-tier--gold {
  border-color: rgba(255, 201, 60, 0.42);
  background: linear-gradient(160deg, rgba(255, 201, 60, 0.12), var(--ink-800) 62%);
}

.page-faq .faq-tier-tag {
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-tier--gold .faq-tier-tag {
  color: var(--gold);
}

.page-faq .faq-tier-name {
  margin: 0;
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--frost);
}

.page-faq .faq-tier--gold .faq-tier-name {
  color: var(--gold);
}

.page-faq .faq-tier-list {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-tier-list li {
  position: relative;
  padding-left: 16px;
}

.page-faq .faq-tier-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--neon);
  transform: rotate(45deg);
}

.page-faq .faq-tier--gold .faq-tier-list li::before {
  background: var(--gold);
}

/* ---------- 定义列表 ---------- */
.page-faq .faq-deflist {
  display: grid;
  gap: 0;
  margin: 0;
}

.page-faq .faq-def {
  padding: 22px 0;
  border-top: 1px solid var(--line-soft);
}

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

.page-faq .faq-def dt {
  margin-bottom: 8px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--frost);
}

.page-faq .faq-def dd {
  margin: 0;
  max-width: 680px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 主题索引 ---------- */
.page-faq .faq-index {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index a {
  display: block;
  padding: 20px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-soft);
  background: var(--ink-700);
  text-decoration: none;
  color: var(--frost);
  transition: transform var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  transform: translateY(-4px);
  border-color: var(--neon);
}

.page-faq .faq-index-name {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--frost);
}

.page-faq .faq-index-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .faq-index-foot {
  margin: clamp(22px, 3.6vw, 34px) 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-contact-card {
  display: grid;
  gap: 16px;
  padding: var(--faq-pad);
  border-radius: var(--faq-radius);
  border: 1px solid var(--line-neon);
  background: var(--ink-700);
  border-top-left-radius: 6px;
}

.page-faq .faq-contact-card .contact-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 14px;
  align-items: center;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-contact-card .contact-line:last-of-type {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-contact-card .contact-label {
  grid-column: 1 / -1;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-faq .faq-contact-card .contact-value {
  font-family: var(--font-num);
  font-size: clamp(15px, 2.6vw, 19px);
  font-weight: 600;
  color: var(--frost);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact-tips {
  padding: var(--faq-pad);
  border-radius: var(--faq-radius);
  border: 1px solid var(--line-soft);
  background: var(--ink-700);
  border-bottom-left-radius: 6px;
}

.page-faq .faq-tips-title {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--frost);
}

.page-faq .faq-tips-list {
  display: grid;
  gap: 10px;
  margin: 0 0 clamp(20px, 3vw, 28px);
  padding: 0;
  list-style: none;
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .faq-tips-list li {
  position: relative;
  padding-left: 18px;
}

.page-faq .faq-tips-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 7px;
  height: 7px;
  border-radius: 1px;
  background: var(--flame);
  transform: rotate(45deg);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 760px) {
  .page-faq .faq-tiers {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }

  .page-faq .faq-split--reverse {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  }

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

  .page-faq .faq-def {
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 24px;
    align-items: baseline;
  }

  .page-faq .faq-def dt {
    margin-bottom: 0;
  }

  .page-faq .faq-def dd {
    max-width: none;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .page-faq .faq-step:hover,
  .page-faq .faq-tier:hover,
  .page-faq .faq-index a:hover {
    transform: none;
  }
}