.page-faq {
  --faq-index-w: 236px;
  display: block;
  overflow-x: hidden;
  padding-bottom: 3.5rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 1.25rem 0 2.5rem;
  border-bottom: 1px solid var(--line);
  background-color: var(--ink);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -45%;
  right: -18%;
  width: 66%;
  height: 200%;
  z-index: -1;
  pointer-events: none;
  transform: skewX(-14deg);
  background: linear-gradient(150deg, rgba(25, 247, 200, 0.16) 0%, rgba(30, 42, 120, 0.34) 44%, rgba(11, 16, 38, 0) 74%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: repeating-linear-gradient(90deg, rgba(42, 53, 92, 0.4) 0 1px, transparent 1px 84px);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 88%);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 1.5rem;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-hero h1 {
  margin: 0.5rem 0 0;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(2rem, 8vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero h1::after {
  content: "";
  display: block;
  width: 88px;
  height: 4px;
  margin-top: 1rem;
  background: linear-gradient(90deg, var(--orange), var(--neon));
}

.page-faq .faq-hero__lead {
  margin: 0;
  font-size: 0.97rem;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.38rem 0.72rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(17, 24, 39, 0.75);
  font-size: 0.8rem;
  color: var(--text);
}

.page-faq .faq-chip .num {
  color: var(--neon);
  font-weight: 700;
  font-family: var(--font-num);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 1.25rem;
  padding-top: 1.75rem;
}

/* 章节索引：窄屏为横向滑条 */
.page-faq .faq-index {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(17, 24, 39, 0.6);
  padding: 0.8rem;
}

.page-faq .faq-index__title {
  margin: 0 0 0.6rem;
  font-family: var(--font-num);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dim);
}

.page-faq .faq-index ul {
  display: flex;
  gap: 0.45rem;
  margin: 0;
  padding: 0 0 0.15rem;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  white-space: nowrap;
  padding: 0.5rem 0.72rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 0.84rem;
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  color: var(--paper);
  border-color: var(--neon);
  background: rgba(25, 247, 200, 0.09);
}

.page-faq .faq-index a .num {
  font-family: var(--font-num);
  font-size: 0.74rem;
  color: var(--orange);
}

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  scroll-margin-top: 110px;
  padding-top: 1.6rem;
  margin-top: 1.6rem;
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.page-faq .faq-section__no {
  font-family: var(--font-num);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--orange);
}

.page-faq .faq-section__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(1.3rem, 5vw, 1.85rem);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-section__note {
  flex: 1 1 100%;
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 三步注册条 ---------- */
.page-faq .step-strip {
  display: grid;
  gap: 0.7rem;
  margin: 0 0 1.3rem;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-faq .step-strip__item {
  position: relative;
  padding: 1rem 1rem 1.1rem;
  border: 1px solid var(--line);
  border-top: 3px solid var(--neon);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.96), rgba(11, 16, 38, 0.9));
}

.page-faq .step-strip__item:nth-child(2) {
  border-top-color: var(--orange);
}

.page-faq .step-strip__item:nth-child(3) {
  border-top-color: var(--violet);
}

.page-faq .step-strip__no {
  display: block;
  margin-bottom: 0.45rem;
  font-family: var(--font-num);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--neon);
}

.page-faq .step-strip__item:nth-child(2) .step-strip__no {
  color: var(--orange);
}

.page-faq .step-strip__item:nth-child(3) .step-strip__no {
  color: var(--violet);
}

.page-faq .step-strip__title {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .step-strip__desc {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.7;
  color: var(--text);
}

/* ---------- 权益对比表 ---------- */
.page-faq .tier-wrap {
  margin: 0 0 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow-x: auto;
}

.page-faq .tier-table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.page-faq .tier-table th,
.page-faq .tier-table td {
  padding: 0.7rem 0.85rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  vertical-align: top;
}

.page-faq .tier-table thead th {
  background: rgba(30, 42, 120, 0.38);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--paper);
}

.page-faq .tier-table thead th:first-child {
  color: var(--muted);
}

.page-faq .tier-table tbody th {
  color: var(--paper);
  font-weight: 600;
}

.page-faq .tier-table tbody tr:last-child th,
.page-faq .tier-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .tier-table .num {
  font-family: var(--font-num);
  color: var(--neon);
  font-weight: 700;
}

/* ---------- 图片 ---------- */
.page-faq .faq-media {
  margin: 0 0 1.4rem;
}

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

.page-faq .faq-media figcaption {
  margin-top: 0.55rem;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--dim);
}

/* ---------- 更新节奏时间带 ---------- */
.page-faq .update-track {
  display: grid;
  gap: 0.8rem;
  margin: 0 0 1.4rem;
  padding: 0;
  list-style: none;
}

.page-faq .update-track li {
  position: relative;
  padding-top: 2.1rem;
  font-size: 0.87rem;
  line-height: 1.7;
  color: var(--text);
}

.page-faq .update-track li::before {
  content: "";
  position: absolute;
  top: 0.9rem;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--neon);
  box-shadow: 0 0 0 3px rgba(25, 247, 200, 0.12);
}

.page-faq .update-track__label {
  display: block;
  margin-bottom: 0.25rem;
  font-family: var(--font-num);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--orange);
}

/* ---------- 问答折叠面板 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 0.55rem;
}

.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(17, 24, 39, 0.62);
  transition: border-color 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-faq .qa[open] {
  border-color: rgba(25, 247, 200, 0.5);
  background: rgba(11, 16, 38, 0.94);
}

.page-faq .qa summary {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 0.9rem;
  cursor: pointer;
  list-style: none;
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--paper);
  transition: color 0.2s var(--ease);
}

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

.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-num);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--neon);
  transition: transform 0.22s var(--ease);
}

.page-faq .qa[open] summary::after {
  content: "−";
  transform: rotate(180deg);
}

.page-faq .qa summary:hover,
.page-faq .qa summary:focus-visible {
  color: var(--neon);
}

.page-faq .qa__dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line);
  transition: background-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-faq .qa[open] .qa__dot {
  background: var(--neon);
  box-shadow: 0 0 0 4px rgba(25, 247, 200, 0.16);
}

.page-faq .qa__num {
  flex: none;
  font-family: var(--font-num);
  font-size: 0.76rem;
  color: var(--dim);
}

.page-faq .qa__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .qa__a {
  padding: 0 0.9rem 0.95rem 2.4rem;
  font-size: 0.89rem;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .qa__a p {
  margin: 0 0 0.55rem;
}

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

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

.page-faq .qa__a a:hover {
  color: var(--orange);
}

/* ---------- 图文分栏 ---------- */
.page-faq .split {
  display: grid;
  gap: 1.25rem;
  align-items: start;
}

.page-faq .faq-media--tall {
  margin-bottom: 0;
}

/* ---------- 支持渠道 ---------- */
.page-faq .support-grid {
  display: grid;
  gap: 0.8rem;
  margin: 0 0 1.4rem;
}

.page-faq .support-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.85), rgba(11, 16, 38, 0.72));
}

.page-faq .support-card h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .support-card p {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.7;
  color: var(--text);
}

.page-faq .support-card__value {
  margin-top: auto;
  padding-top: 0.4rem;
  font-family: var(--font-num);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--neon);
  word-break: break-all;
}

.page-faq .support-card__foot {
  font-size: 0.78rem;
  color: var(--dim);
}

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

/* ---------- 中等屏幕 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero {
    padding: 1.5rem 0 3rem;
  }

  .page-faq .faq-hero__lead {
    font-size: 1rem;
  }

  .page-faq .step-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.85rem;
  }

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

  .page-faq .update-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
    position: relative;
  }

  .page-faq .update-track::before {
    content: "";
    position: absolute;
    top: 1.1rem;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--line), var(--neon), var(--violet), var(--line));
  }

  .page-faq .update-track li {
    padding-top: 2.3rem;
  }

  .page-faq .update-track li::before {
    top: 0.72rem;
  }

  .page-faq .update-track__label {
    margin-bottom: 0.35rem;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-faq {
    padding-bottom: 4.5rem;
  }

  .page-faq .faq-hero {
    padding: 2rem 0 3.5rem;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: end;
    gap: 3.5rem;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 3rem;
    padding-top: 2.75rem;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
    align-self: start;
    padding: 1rem 0.6rem 1rem 0.9rem;
    background: transparent;
    border: 0;
    border-left: 1px solid var(--line);
    border-radius: 0;
  }

  .page-faq .faq-index ul {
    flex-direction: column;
    gap: 0.15rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index a {
    width: 100%;
    padding: 0.55rem 0.5rem 0.55rem 0.7rem;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    font-size: 0.86rem;
  }

  .page-faq .faq-index a:hover,
  .page-faq .faq-index a:focus-visible {
    border-left-color: var(--neon);
    background: rgba(25, 247, 200, 0.07);
  }

  .page-faq .faq-section {
    padding-top: 2.1rem;
    margin-top: 2.1rem;
  }

  .page-faq .split {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 2.25rem;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    animation: none !important;
    transition: none !important;
  }
}