/* ===== 使用教程 · 移动端额度说明 ===== */
.page-faq {
  --faq-radius: 26px;
  display: block;
  padding-bottom: clamp(40px, 8vw, 96px);
}

.page-faq .wrap {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 40px);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  padding-top: clamp(16px, 3vw, 30px);
}

.page-faq .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--text-2);
}

.page-faq .breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.page-faq .breadcrumbs li + li::before {
  content: "/";
  color: var(--line);
}

.page-faq .breadcrumbs a {
  color: var(--text-2);
  text-decoration: none;
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(24px, 5vw, 60px) 0 clamp(20px, 4vw, 46px);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
}

.page-faq .faq-hero__inner > .annotation--vertical {
  display: none;
}

.page-faq .faq-hero__copy h1 {
  margin: 10px 0 18px;
  font-size: clamp(30px, 6.4vw, 62px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: .02em;
  max-width: 15em;
}

.page-faq .faq-hero__copy .lede {
  margin: 0;
  max-width: 64ch;
  color: var(--text-2);
  line-height: 1.85;
}

.page-faq .faq-index {
  list-style: none;
  margin: clamp(22px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-index a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: linear-gradient(120deg, rgba(124, 58, 237, .18), rgba(34, 211, 238, .07));
  color: var(--text);
  font-size: 15px;
  text-decoration: none;
  transition: color .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  color: var(--cyan);
  border-color: rgba(34, 211, 238, .55);
  transform: translateY(-2px);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--amber);
}

/* ---------- 画板基础 ---------- */
.page-faq .panel {
  position: relative;
  margin: 0 auto clamp(18px, 3.6vw, 32px);
  padding: clamp(30px, 5.4vw, 64px) 0;
  border-radius: var(--faq-radius);
}

.page-faq .panel__title {
  margin: 8px 0 14px;
  font-size: clamp(24px, 3.8vw, 42px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: .02em;
  max-width: 22em;
}

.page-faq .panel__head .lede {
  margin: 0;
  max-width: 66ch;
  color: var(--text-2);
  line-height: 1.85;
}

/* ---------- 对照图表 ---------- */
.page-faq .faq-figure {
  margin: clamp(22px, 3.4vw, 36px) 0 0;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: linear-gradient(140deg, rgba(124, 58, 237, .22), rgba(34, 211, 238, .1));
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1200 / 800;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  padding: 10px 18px 14px;
  font-size: 12px;
  letter-spacing: .06em;
}

/* ---------- 档位切换 ---------- */
.page-faq .tier-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(22px, 3.4vw, 34px) 0 16px;
}

.page-faq .tier-tabs .tab {
  appearance: none;
  cursor: pointer;
  padding: 11px 26px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: rgba(11, 16, 32, .75);
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .08em;
  transition: color .22s var(--ease), border-color .22s var(--ease), background .22s var(--ease);
}

.page-faq .tier-tabs .tab:hover {
  color: var(--text);
  border-color: rgba(34, 211, 238, .5);
}

.page-faq .tier-tabs .tab[aria-selected="true"] {
  color: var(--text);
  border-color: rgba(245, 185, 66, .65);
  background: linear-gradient(120deg, rgba(124, 58, 237, .42), rgba(34, 211, 238, .16));
  box-shadow: 0 12px 34px -20px rgba(124, 58, 237, .95);
}

.page-faq .tier-tabs .tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .tier-panel {
  padding: clamp(18px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: rgba(5, 7, 12, .55);
}

.page-faq .tier-kv {
  margin: 0;
  display: grid;
  gap: 2px;
}

.page-faq .tier-row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}

.page-faq .tier-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .tier-row:first-child {
  padding-top: 0;
}

.page-faq .tier-row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-faq .tier-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-faq .tier-note {
  margin: clamp(18px, 3vw, 26px) 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-2);
}

/* ---------- 五步查阅 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  margin-top: clamp(22px, 3.4vw, 36px);
}

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

.page-faq .step-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(120deg, rgba(12, 46, 44, .9), rgba(5, 7, 12, .45));
}

.page-faq .step-item__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--amber);
  padding-top: 3px;
}

.page-faq .step-item__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
}

.page-faq .faq-steps__media {
  max-width: 320px;
  margin-inline: auto;
}

.page-faq .phone-frame {
  margin: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: linear-gradient(160deg, rgba(27, 20, 64, .96), rgba(5, 7, 12, .92));
  box-shadow: 0 40px 90px -48px rgba(34, 211, 238, .75);
}

.page-faq .phone-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 900 / 1600;
  object-fit: cover;
  border-radius: 24px;
}

.page-faq .faq-steps__media .annotation {
  display: block;
  margin-top: 12px;
  text-align: center;
}

/* ---------- 同屏对照 ---------- */
.page-faq .sync-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-faq .sync-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(11, 16, 32, .8);
}

.page-faq .sync-card--now {
  border-color: rgba(245, 185, 66, .45);
  background: linear-gradient(140deg, rgba(124, 58, 237, .4), rgba(34, 211, 238, .12));
}

.page-faq .sync-card__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(34px, 7vw, 52px);
  line-height: 1;
  color: var(--amber);
}

.page-faq .sync-card__label {
  display: block;
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
}

.page-faq .sync-tips {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .sync-tips li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .sync-tips li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: .72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--violet);
}

/* ---------- 状态点 ---------- */
.page-faq .status-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-faq .status-card {
  display: grid;
  gap: 10px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(11, 16, 32, .74);
}

.page-faq .status-card__title {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-faq .status-card > p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-2);
}

.page-faq .status-card p.status-card__advice {
  padding-left: 12px;
  border-left: 2px solid var(--amber);
  color: var(--text);
  font-size: 13px;
}

/* ---------- 常见问题 ---------- */
.page-faq .qa-groups {
  display: grid;
  gap: clamp(20px, 3.4vw, 34px);
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-faq .qa-group__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .qa-item {
  margin-bottom: 8px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: rgba(11, 16, 32, .72);
  overflow: hidden;
  transition: border-color .24s var(--ease), border-radius .24s var(--ease);
}

.page-faq .qa-item:last-child {
  margin-bottom: 0;
}

.page-faq .qa-item[open] {
  border-color: rgba(34, 211, 238, .55);
  border-radius: var(--r-md);
}

.page-faq .qa-item > summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 14px 20px 14px 42px;
  font-size: 15px;
  line-height: 1.62;
  color: var(--text);
}

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

.page-faq .qa-item > summary::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 50%;
  width: 8px;
  height: 8px;
  margin-top: -4px;
  border-radius: 50%;
  background: var(--violet);
  transition: background .24s var(--ease), box-shadow .24s var(--ease);
}

.page-faq .qa-item[open] > summary::before {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, .18);
}

.page-faq .qa-item > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .qa-item__body {
  margin: 0;
  padding: 0 20px 16px 42px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-2);
}

.page-faq .qa-item__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, .4);
}

.page-faq .qa-item__body a:hover,
.page-faq .qa-item__body a:focus-visible {
  color: var(--amber);
  border-bottom-color: rgba(245, 185, 66, .6);
}

/* ---------- 支持条 ---------- */
.page-faq .help-strip {
  display: grid;
  gap: 22px;
  margin-top: clamp(22px, 3.4vw, 34px);
  padding: clamp(22px, 3.4vw, 34px);
  border: 1px solid rgba(245, 185, 66, .35);
  border-radius: var(--faq-radius);
  background: linear-gradient(140deg, rgba(52, 17, 37, .88), rgba(5, 7, 12, .78));
}

.page-faq .help-strip__body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.78;
}

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

.page-faq .help-strip__key {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--amber);
  word-break: break-all;
}

.page-faq .help-strip__meta {
  font-size: 13.5px;
  color: var(--text-2);
}

.page-faq .help-strip__meta a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, .4);
}

.page-faq .help-strip__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-faq .faq-steps {
    grid-template-columns: minmax(0, 1.1fr) minmax(240px, .9fr);
    align-items: start;
  }

  .page-faq .faq-steps__media {
    max-width: none;
    margin-inline: 0;
  }

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

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

  .page-faq .help-strip {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: 44px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-hero__inner > .annotation--vertical {
    display: block;
  }

  .page-faq .faq-index {
    grid-column: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index a,
  .page-faq .tier-tabs .tab,
  .page-faq .qa-item,
  .page-faq .qa-item > summary::before {
    transition: none;
  }

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