/* ============ page: faq ============ */
.page-faq {
  display: block;
  color: var(--text);
}

/* ---- 面包屑 ---- */
.page-faq .crumb {
  padding: clamp(16px, 2.4vw, 26px) 0 0;
}
.page-faq .crumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--gray);
}
.page-faq .crumb__link {
  color: var(--gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}
.page-faq .crumb__link:hover,
.page-faq .crumb__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--line-cyan);
}
.page-faq .crumb__sep { color: var(--line-strong); }
.page-faq .crumb__item [aria-current="page"] { color: var(--white); }

/* ---- 首屏 ---- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 4vw, 44px) 0 clamp(24px, 3.4vw, 46px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(760px 400px at 8% -12%, rgba(57, 255, 208, .10), transparent 72%),
    radial-gradient(620px 360px at 96% 8%, rgba(255, 122, 26, .07), transparent 70%),
    linear-gradient(180deg, var(--ink-2), var(--ink) 82%);
}
.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.4vw, 46px);
}
.page-faq .kicker {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--f-head);
  font-size: clamp(31px, 7.2vw, 62px);
  line-height: 1.04;
  letter-spacing: -.022em;
  color: var(--white);
  max-width: 18ch;
}
.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.4vw, 16.5px);
  line-height: 1.82;
  color: var(--text-dim);
}

/* 数字锚点 */
.page-faq .stat-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(22px, 3vw, 34px);
  background: var(--line);
  border: 1px solid var(--line);
}
.page-faq .stat-row .stat {
  background: var(--ink-3);
  padding: 14px 16px;
}
.page-faq .stat__num {
  display: block;
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: clamp(19px, 3.6vw, 28px);
  line-height: 1.12;
  color: var(--white);
}
.page-faq .stat__unit {
  font-family: var(--f-mono);
  font-size: .58em;
  color: var(--cyan);
  letter-spacing: .02em;
}
.page-faq .stat__label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--gray);
}

/* 快速跳转 */
.page-faq .jump-bar {
  display: flex;
  gap: 8px;
  margin-top: clamp(20px, 2.6vw, 28px);
  padding-bottom: 4px;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-faq .jump-bar a {
  flex: 0 0 auto;
  padding: 9px 14px;
  border: 1px solid var(--line);
  background: rgba(13, 31, 34, .6);
  color: var(--text-dim);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: .01em;
  white-space: nowrap;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}
.page-faq .jump-bar a:hover,
.page-faq .jump-bar a:focus-visible {
  color: var(--white);
  border-color: var(--line-cyan);
  background: rgba(57, 255, 208, .1);
}

/* 首屏主视觉 */
.page-faq .faq-hero__media {
  margin: 0;
}
.page-faq .faq-hero__media .media-frame__inner {
  background:
    linear-gradient(135deg, rgba(57, 255, 208, .06), transparent 60%),
    var(--ink-3);
}
.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---- 主体布局 ---- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 46px);
  padding: clamp(26px, 4vw, 52px) 0 0;
}
.page-faq .faq-index {
  display: none;
}
.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gray);
}
.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}
.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  border-left: 2px solid var(--line);
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}
.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--white);
  border-left-color: var(--cyan);
  background: rgba(57, 255, 208, .07);
}
.page-faq .faq-index__num {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--gray);
}

/* ---- 区块 ---- */
.page-faq .faq-body {
  min-width: 0;
}
.page-faq .faq-block {
  padding: clamp(24px, 3vw, 38px) 0;
  border-top: 1px solid var(--line);
}
.page-faq .faq-block:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-faq .faq-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 16px;
  margin-bottom: clamp(16px, 2vw, 24px);
}
.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--f-head);
  font-size: clamp(21px, 3.6vw, 33px);
  line-height: 1.16;
  letter-spacing: -.012em;
  color: var(--white);
}
.page-faq .faq-block__tag {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid var(--line-cyan);
  padding: 4px 9px;
  white-space: nowrap;
}
.page-faq .faq-block__lead {
  margin: 0 0 18px;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---- 下载前检查 ---- */
.page-faq .check-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.page-faq .check-item {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  background: linear-gradient(180deg, var(--ink-2), var(--ink-3));
  box-shadow: var(--shadow-1);
  transition: border-color var(--ease), transform var(--ease);
}
.page-faq .check-item:hover {
  border-left-color: var(--orange);
  transform: translate(-2px, -2px);
}
.page-faq .check-item__num {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
}
.page-faq .check-item__title {
  margin: 7px 0 7px;
  font-family: var(--f-head);
  font-size: 17px;
  letter-spacing: 0;
  color: var(--white);
}
.page-faq .check-item__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-dim);
}
.page-faq .mono-badge {
  font-family: var(--f-mono);
  font-size: .94em;
  color: var(--cyan);
  letter-spacing: .01em;
}

/* ---- 问答折叠 ---- */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
}
.page-faq .qa {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-2), var(--ink-3));
  transition: border-color var(--ease), box-shadow var(--ease);
}
.page-faq .qa:hover {
  border-color: var(--line-strong);
}
.page-faq .qa[open] {
  border-color: var(--line-cyan);
  box-shadow: var(--shadow-cyan);
}
.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--white);
}
.page-faq .qa__q::-webkit-details-marker {
  display: none;
}
.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--f-mono);
  font-size: 19px;
  line-height: 1.2;
  color: var(--cyan);
}
.page-faq .qa[open] .qa__q::after {
  content: "\2212";
  color: var(--orange);
}
.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}
.page-faq .qa__idx {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--gray);
}
.page-faq .qa__a {
  margin: 0;
  padding: 14px 18px 18px;
  border-top: 1px dashed var(--line);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---- 礼包码 ---- */
.page-faq .gift-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 32px);
}
.page-faq .step-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: giftstep;
  display: grid;
  gap: 16px;
}
.page-faq .step-list > li {
  position: relative;
  padding-left: 50px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-dim);
}
.page-faq .step-list > li::before {
  counter-increment: giftstep;
  content: "0" counter(giftstep);
  position: absolute;
  left: 0;
  top: 2px;
  width: 34px;
  height: 26px;
  display: grid;
  place-items: center;
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--f-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .04em;
}
.page-faq .step-list strong {
  display: block;
  margin-bottom: 3px;
  font-size: 15px;
  color: var(--white);
}
.page-faq .alert-card {
  margin-top: 22px;
  padding: 16px 18px;
  border: 1px solid var(--line-magenta);
  background:
    linear-gradient(180deg, rgba(58, 13, 24, .95), rgba(58, 13, 24, .72));
}
.page-faq .alert-card__title {
  margin: 0 0 10px;
  font-family: var(--f-head);
  font-size: 15px;
  letter-spacing: .03em;
  color: var(--white);
}
.page-faq .alert-card ul {
  margin: 0;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}
.page-faq .alert-card li + li {
  margin-top: 6px;
}
.page-faq .gift-figure {
  margin: 0;
}
.page-faq .gift-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---- 版本核对表 ---- */
.page-faq .table-scroll {
  border: 1px solid var(--line);
  overflow-x: auto;
}
.page-faq .table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}
.page-faq .table-caption {
  caption-side: top;
  padding: 12px 14px;
  text-align: left;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gray);
  border-bottom: 1px solid var(--line);
  background: var(--ink-3);
}
.page-faq .table th,
.page-faq .table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  line-height: 1.7;
}
.page-faq .table thead th {
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gray);
  background: var(--ink-2);
}
.page-faq .table tbody td {
  color: var(--text-dim);
}
.page-faq .table tbody td:first-child {
  color: var(--white);
  font-weight: 600;
  white-space: nowrap;
}
.page-faq .table .mono {
  font-family: var(--f-mono);
  color: var(--cyan);
  letter-spacing: .02em;
}

/* ---- 来源与校验 ---- */
.page-faq .bullet-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.page-faq .bullet-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: var(--ink-3);
  transition: border-color var(--ease);
}
.page-faq .bullet-list li:hover {
  border-color: var(--line-orange);
}
.page-faq .bullet-list__mark {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: 7px;
  background: var(--orange);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, .5);
}
.page-faq .bullet-list__text {
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-dim);
}
.page-faq .bullet-list__text strong {
  color: var(--white);
}

/* ---- 联系客服 ---- */
.page-faq .faq-block--support {
  padding-bottom: clamp(28px, 4vw, 48px);
}
.page-faq .support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 30px);
}
.page-faq .faq-block--support .faq-block__lead {
  margin-top: 0;
}
.page-faq .prep-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-faq .prep-list li {
  padding: 13px 16px;
  background: var(--ink-3);
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-dim);
}
.page-faq .prep-list__k {
  display: block;
  margin-bottom: 2px;
  font-family: var(--f-head);
  font-size: 15px;
  color: var(--white);
}
.page-faq .contact-card {
  padding: 20px;
  border: 1px solid var(--line-cyan);
  background: linear-gradient(180deg, var(--ink-2), var(--ink-3));
  box-shadow: var(--shadow-1);
}
.page-faq .contact-card__title {
  margin: 0;
  font-family: var(--f-head);
  font-size: 18px;
  letter-spacing: .02em;
  color: var(--white);
}
.page-faq .contact-list {
  margin-top: 16px;
  display: grid;
  gap: 0;
}
.page-faq .contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}
.page-faq .contact-label {
  flex: 0 0 auto;
  min-width: 56px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gray);
}
.page-faq .contact-value {
  font-family: var(--f-mono);
  font-size: 13.5px;
  color: var(--white);
  word-break: break-all;
}
.page-faq .copy-chip {
  margin-left: auto;
  padding: 5px 10px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--cyan);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .08em;
  cursor: pointer;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}
.page-faq .copy-chip:hover,
.page-faq .copy-chip:focus-visible {
  border-color: var(--cyan);
  background: rgba(57, 255, 208, .12);
  outline: none;
}
.page-faq .copy-chip[data-copied] {
  color: var(--acid);
  border-color: var(--acid);
}
.page-faq .contact-card__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--gray);
}

/* ---- 相关入口 ---- */
.page-faq .faq-more {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  padding: clamp(20px, 3vw, 30px) 0 clamp(28px, 4vw, 48px);
  border-top: 1px solid var(--line);
}
.page-faq .faq-more .link-arrow {
  font-size: 14px;
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color var(--ease), border-color var(--ease);
}
.page-faq .faq-more .link-arrow:hover,
.page-faq .faq-more .link-arrow:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---- 响应式 ---- */
@media (min-width: 600px) {
  .page-faq .check-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .stat-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .gift-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .8fr);
    align-items: start;
  }
  .page-faq .support-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
  .page-faq .qa__a {
    padding-left: 46px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
  }
  .page-faq .faq-layout {
    grid-template-columns: 224px minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-index {
    display: block;
    position: sticky;
    top: 96px;
    align-self: start;
  }
}

@media (min-width: 1200px) {
  .page-faq .jump-bar {
    overflow-x: visible;
    flex-wrap: wrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .check-item:hover {
    transform: none;
  }
}