.page-faq {
  --faq-gap: clamp(18px, 2.4vw, 30px);
  --faq-shadow: 8px 8px 0 rgba(5, 7, 15, 0.55);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(18px, 3vw, 32px) 0 clamp(22px, 3.4vw, 40px);
  border-bottom: 3px solid var(--line);
}

.page-faq .faq-hero__kicker {
  margin: 16px 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-faq .faq-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 5.4vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--mist);
  text-shadow: 0 0 1px var(--cyan), 0 0 22px rgba(47, 243, 224, 0.28);
}

.page-faq .faq-hero__lede {
  max-width: 62ch;
  margin: 0 0 24px;
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--steel);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  background: var(--panel);
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.6vw, 32px);
  line-height: 1;
  color: var(--amber);
}

.page-faq .faq-stat__label {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--steel);
}

/* ---------- 章节节奏 ---------- */
.page-faq .faq-block {
  padding-block: clamp(26px, 3.6vw, 48px);
}

.page-faq .faq-block .section__lede {
  max-width: 68ch;
}

/* ---------- 快速索引 ---------- */
.page-faq .faq-hot {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
  margin-top: 22px;
}

.page-faq .faq-index {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-index__row {
  position: relative;
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: baseline;
  padding: 11px 10px;
  border-bottom: 1px solid var(--line);
  color: var(--mist);
  text-decoration: none;
  transition: background 0.16s ease, padding-left 0.16s ease;
}

.page-faq .faq-index__row::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.18s ease;
}

.page-faq .faq-index__row:hover,
.page-faq .faq-index__row:focus-visible {
  padding-left: 16px;
  background: linear-gradient(90deg, rgba(47, 243, 224, 0.14), rgba(47, 243, 224, 0) 72%);
}

.page-faq .faq-index__row:hover::before,
.page-faq .faq-index__row:focus-visible::before {
  transform: scaleY(1);
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-faq .faq-index__q {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
}

.page-faq .faq-index__c {
  padding: 2px 7px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--violet);
  white-space: nowrap;
}

.page-faq .faq-hot__media {
  margin: 0;
  aspect-ratio: 3 / 2;
}

.page-faq .faq-hot__media .frame-media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 分类标签 ---------- */
.page-faq .faq-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 18px;
}

.page-faq .faq-tabs__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-bottom-width: 3px;
  background: var(--panel);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--mist);
  text-decoration: none;
  transition: border-color 0.16s ease, color 0.16s ease, transform 0.12s ease;
}

.page-faq .faq-tabs__item b {
  font-weight: 600;
  color: var(--amber);
}

.page-faq .faq-tabs__item:hover,
.page-faq .faq-tabs__item:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .faq-tabs__item:active {
  transform: translateY(1px);
}

/* ---------- 分类卡片 ---------- */
.page-faq .faq-cats {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-cat {
  position: relative;
  padding: 20px 18px 16px;
  background: var(--panel);
  border: 3px solid var(--line);
  border-top-width: 5px;
  box-shadow: var(--faq-shadow);
  scroll-margin-top: 76px;
}

.page-faq .faq-cat--access { border-top-color: var(--cyan); }
.page-faq .faq-cat--rule { border-top-color: var(--violet); }
.page-faq .faq-cat--rank { border-top-color: var(--magenta); }
.page-faq .faq-cat--account { border-top-color: var(--amber); }

.page-faq .faq-cat__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-faq .faq-cat__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.2vw, 21px);
  color: var(--mist);
}

.page-faq .faq-cat__count {
  padding: 2px 8px;
  border: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--amber);
}

.page-faq .faq-cat__stamp {
  margin: 6px 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--steel);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-qa {
  position: relative;
  border-top: 1px solid var(--line);
  scroll-margin-top: 76px;
}

.page-faq .faq-qa:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-qa[open]::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(47, 243, 224, 0));
}

.page-faq .faq-qa__q {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 13px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--mist);
  transition: color 0.15s ease;
}

.page-faq .faq-qa__q::-webkit-details-marker { display: none; }
.page-faq .faq-qa__q::marker { content: ""; }

.page-faq .faq-qa__q::after {
  content: "＋";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan);
}

.page-faq .faq-qa[open] > .faq-qa__q::after {
  content: "－";
}

.page-faq .faq-qa__q:hover,
.page-faq .faq-qa__q:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-qa__no {
  flex: none;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--amber);
}

.page-faq .faq-qa__a {
  padding: 0 0 16px;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--steel);
}

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

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

.page-faq .faq-qa__concl {
  padding-left: 12px;
  border-left: 3px solid var(--cyan);
  color: var(--mist);
}

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

.page-faq .faq-qa__doc {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--violet);
}

/* ---------- 段位专区 ---------- */
.page-faq .faq-rank {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
  margin-top: 22px;
}

.page-faq .faq-rank__side {
  padding: 20px 18px;
  border: 3px solid var(--line);
  border-left: 5px solid var(--magenta);
  background: linear-gradient(160deg, rgba(255, 61, 139, 0.12), rgba(19, 26, 62, 1) 62%);
}

.page-faq .faq-rank__lead {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-rank__hint {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel);
}

.page-faq .faq-rank__scroll {
  overflow-x: auto;
  border: 3px solid var(--line);
  background: var(--panel);
  box-shadow: var(--faq-shadow);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rank__table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-family: var(--font-body);
  font-size: 14px;
}

.page-faq .faq-rank__table caption {
  padding: 13px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--steel);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-rank__table th,
.page-faq .faq-rank__table td {
  padding: 11px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  color: var(--mist);
}

.page-faq .faq-rank__table thead th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--steel);
  background: rgba(42, 53, 96, 0.4);
  border-bottom: 2px solid var(--line);
  white-space: nowrap;
}

.page-faq .faq-rank__table tbody tr:hover {
  background: rgba(47, 243, 224, 0.06);
}

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

.page-faq .faq-rank__tier {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  color: var(--mist);
  white-space: nowrap;
}

.page-faq .faq-rank__stage {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--violet);
  white-space: nowrap;
}

.page-faq .faq-rank__lv {
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.24em;
  color: var(--cyan);
  white-space: nowrap;
}

.page-faq .faq-rank__doc {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--amber);
  white-space: nowrap;
}

/* ---------- 排查三步 ---------- */
.page-faq .faq-device {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
  margin-top: 22px;
}

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

.page-faq .faq-step {
  padding: 16px 18px;
  background: var(--panel);
  border: 3px solid var(--line);
  border-left: 5px solid var(--cyan);
  box-shadow: 6px 6px 0 rgba(5, 7, 15, 0.5);
}

.page-faq .faq-step__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-faq .faq-step__title {
  margin: 7px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16.5px;
  color: var(--mist);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--steel);
}

.page-faq .faq-device__media {
  margin: 0;
  aspect-ratio: 12 / 7;
}

.page-faq .faq-device__media .frame-media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 文档四问 ---------- */
.page-faq .faq-doc {
  display: grid;
  gap: 1px;
  margin-top: 22px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-doc__item {
  padding: 18px 20px;
  background: var(--panel);
}

.page-faq .faq-doc__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--cyan);
}

.page-faq .faq-doc__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--steel);
}

/* ---------- 收尾支持 ---------- */
.page-faq .faq-help {
  border-top: 3px solid var(--line);
  background: linear-gradient(180deg, rgba(122, 92, 255, 0.16), rgba(10, 15, 44, 0) 68%);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
  margin-top: 22px;
}

.page-faq .faq-help__msg {
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--mist);
}

.page-faq .faq-help__msg p {
  margin: 0 0 14px;
}

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

.page-faq .faq-help__note {
  padding: 12px 14px;
  border-left: 3px solid var(--amber);
  background: rgba(255, 194, 75, 0.08);
  font-size: 14px;
  color: var(--steel);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-faq .faq-help__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help__list li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--panel);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .faq-help__list li::before {
  content: "▸";
  flex: none;
  color: var(--cyan);
}

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

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .page-faq .faq-index__row {
    grid-template-columns: 56px minmax(0, 1fr);
    padding-left: 4px;
  }

  .page-faq .faq-index__c {
    display: none;
  }

  .page-faq .faq-index__q {
    font-size: 14.5px;
  }

  .page-faq .faq-hero__title {
    font-size: clamp(28px, 8.6vw, 40px);
  }
}

@media (min-width: 720px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hot {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.8fr);
  }

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

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

@media (min-width: 1080px) {
  .page-faq .faq-rank {
    grid-template-columns: minmax(0, 250px) minmax(0, 1fr);
  }

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

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__row,
  .page-faq .faq-index__row::before,
  .page-faq .faq-tabs__item,
  .page-faq .faq-qa__q {
    transition: none;
  }
}