.page-faq {
  --faq-glow-a: rgba(111, 91, 255, .30);
  --faq-glow-b: rgba(47, 230, 230, .15);
  --faq-panel: rgba(14, 22, 36, .74);
  --faq-panel-2: rgba(10, 15, 26, .90);
  position: relative;
  isolation: isolate;
  overflow-x: clip;
  color: var(--text);
  padding-bottom: clamp(48px, 8vw, 96px);
  background:
    radial-gradient(118% 44% at 90% -6%, var(--faq-glow-a), transparent 62%),
    radial-gradient(82% 38% at 2% 4%, var(--faq-glow-b), transparent 66%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-3) 44%, var(--ink) 100%);
}

.page-faq section {
  position: relative;
  padding-block: clamp(40px, 7vw, 82px);
}

.page-faq > section:first-child {
  padding-top: calc(var(--header-offset) + clamp(22px, 5vw, 54px));
}

.page-faq [id] {
  scroll-margin-top: calc(var(--header-offset) + 26px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(28px, 5vw, 54px);
  align-items: start;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-hero__title {
  margin: 14px 0 20px;
  max-width: 22ch;
  font-family: var(--font-serif);
  font-size: var(--step-4);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--bone);
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  margin: 0 0 14px;
  max-width: 56ch;
  font-size: var(--step-1);
  line-height: 1.65;
  color: var(--text-soft);
}

.page-faq .faq-hero__lead--soft {
  max-width: 52ch;
  padding-left: 16px;
  font-size: var(--step-0);
  line-height: 1.7;
  color: var(--text-dim);
  border-left: 2px solid var(--violet);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 30px;
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 18px 20px;
  margin: 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-hero__stat .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--step-2);
  font-weight: 700;
  line-height: 1.1;
  color: var(--lime);
}

.page-faq .faq-hero__stat .stat__label {
  display: block;
  margin-top: 7px;
  font-size: var(--step--1);
  letter-spacing: .02em;
  color: var(--text-dim);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(47, 230, 230, .22);
  border-radius: inherit;
  pointer-events: none;
}

/* ---------- 通用章节头 ---------- */

.page-faq .faq-head {
  max-width: 66ch;
  margin-bottom: clamp(24px, 4vw, 42px);
}

.page-faq .faq-head .section__title {
  margin: 12px 0 14px;
}

/* ---------- 三步入门 ---------- */

.page-faq .faq-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 15px;
  font-family: var(--font-ui);
  font-size: var(--step--1);
  letter-spacing: .04em;
  text-decoration: none;
  color: var(--text-soft);
  background: rgba(14, 22, 36, .55);
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  transition: color .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--cyan);
  border-color: rgba(47, 230, 230, .55);
  transform: translateY(-2px);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--lime);
}

.page-faq .faq-steps__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
}

.page-faq .faq-track {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  background: linear-gradient(180deg, var(--faq-panel), var(--faq-panel-2));
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--rock);
  border-radius: var(--radius);
  transition: border-color .22s var(--ease), background .22s var(--ease), transform .22s var(--ease);
}

.page-faq .faq-step:hover,
.page-faq .faq-step:target {
  border-left-color: var(--violet);
  transform: translateX(3px);
}

.page-faq .faq-step:target {
  background: linear-gradient(180deg, rgba(111, 91, 255, .18), var(--faq-panel-2));
  border-color: rgba(111, 91, 255, .46);
}

.page-faq .faq-step__num {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .2em;
  color: var(--lime);
}

.page-faq .faq-step__title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: var(--step-1);
  font-weight: 600;
  line-height: 1.36;
  color: var(--bone);
}

.page-faq .faq-step__body {
  margin: 0 0 14px;
  font-size: var(--step-0);
  line-height: 1.72;
  color: var(--text-soft);
}

.page-faq .faq-step__hint {
  margin: 0;
  padding-top: 12px;
  font-size: var(--step--1);
  letter-spacing: .01em;
  line-height: 1.7;
  color: var(--text-dim);
  border-top: 1px dashed var(--line-soft);
}

.page-faq .faq-steps__visual {
  margin: 0;
}

/* ---------- 赛前十分钟 ---------- */

.page-faq .faq-ten {
  background: linear-gradient(180deg, transparent 0%, rgba(14, 22, 36, .78) 18%, rgba(14, 22, 36, .78) 82%, transparent 100%);
}

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

.page-faq .faq-check__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line-soft);
  transition: background .22s var(--ease), padding-left .22s var(--ease);
}

.page-faq .faq-check__item:hover {
  padding-left: 12px;
  background: rgba(111, 91, 255, .08);
}

.page-faq .faq-check__time {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-faq .faq-check__field {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
}

.page-faq .faq-check__label {
  font-family: var(--font-ui);
  font-size: var(--step-0);
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--bone);
}

.page-faq .faq-check__note {
  font-size: var(--step--1);
  line-height: 1.65;
  color: var(--text-dim);
}

/* ---------- 移动端 ---------- */

.page-faq .faq-mobile__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 20px);
}

.page-faq .faq-mobile__card {
  display: flex;
  flex-direction: column;
  gap: 9px;
  transition: transform .22s var(--ease), border-color .22s var(--ease);
}

.page-faq .faq-mobile__card:hover {
  transform: translateY(-3px);
  border-color: rgba(47, 230, 230, .38);
}

.page-faq .faq-mobile__card .card__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: var(--step-1);
  font-weight: 600;
  line-height: 1.36;
  color: var(--bone);
}

.page-faq .faq-mobile__card .card__body {
  margin: 0;
  font-size: var(--step-0);
  line-height: 1.72;
  color: var(--text-soft);
}

.page-faq .faq-mobile__card .btn--quiet {
  margin-top: auto;
  padding-top: 6px;
  align-self: flex-start;
}

/* ---------- 资料下载 ---------- */

.page-faq .faq-format {
  display: grid;
  gap: 10px;
  margin: 24px 0 28px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-format__item {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: rgba(10, 15, 26, .62);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}

.page-faq .faq-format__item:hover {
  border-color: rgba(47, 230, 230, .42);
  transform: translateY(-2px);
}

.page-faq .faq-format__ext {
  padding-right: 10px;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .08em;
  color: var(--cyan);
  border-right: 1px solid var(--line-soft);
}

.page-faq .faq-format__text {
  font-size: var(--step-0);
  line-height: 1.66;
  color: var(--text-soft);
}

.page-faq .faq-download__aside {
  margin-top: clamp(22px, 3vw, 32px);
  padding: clamp(18px, 2.4vw, 26px);
  background: rgba(184, 107, 75, .08);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--clay);
  border-radius: var(--radius);
}

.page-faq .faq-download__aside-title {
  margin: 0 0 14px;
  font-family: var(--font-ui);
  font-size: var(--step--1);
  letter-spacing: .1em;
  color: var(--clay);
}

.page-faq .faq-download__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 18px;
  font-size: var(--step--1);
  line-height: 1.72;
  color: var(--text-soft);
}

/* ---------- 常见问题 ---------- */

.page-faq .faq-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-faq .faq-topics__link {
  padding: 7px 14px;
  font-family: var(--font-ui);
  font-size: var(--step--1);
  letter-spacing: .04em;
  text-decoration: none;
  color: var(--text-soft);
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  transition: color .22s var(--ease), border-color .22s var(--ease);
}

.page-faq .faq-topics__link:hover,
.page-faq .faq-topics__link:focus-visible {
  color: var(--lime);
  border-color: rgba(199, 244, 100, .5);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(26px, 4vw, 40px);
}

.page-faq .faq-group__title {
  margin: 0 0 14px;
  font-family: var(--font-ui);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--cic, var(--text-dim));
}

.page-faq .faq-acc {
  display: grid;
  gap: 8px;
}

.page-faq .faq-item {
  background: var(--glass);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
  transition: background .22s var(--ease), border-color .22s var(--ease);
}

.page-faq .faq-item[open] {
  background: var(--ink-2);
  border-color: rgba(111, 91, 255, .44);
}

.page-faq .faq-item summary {
  position: relative;
  padding: 16px 52px 16px 18px;
  font-family: var(--font-ui);
  font-size: var(--step-0);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: .01em;
  color: var(--text);
  list-style: none;
  cursor: pointer;
  transition: color .22s var(--ease);
}

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

.page-faq .faq-item summary:hover {
  color: var(--cyan);
}

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

.page-faq .faq-item summary::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 22px;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: translateY(-70%) rotate(45deg);
  transition: transform .22s var(--ease);
}

.page-faq .faq-item[open] summary::after {
  transform: translateY(-30%) rotate(225deg);
}

.page-faq .faq-item__body {
  padding: 0 18px 18px;
}

.page-faq .faq-item__body p {
  margin: 0;
  padding-top: 14px;
  font-size: var(--step-0);
  line-height: 1.75;
  color: var(--text-soft);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 联系与支持 ---------- */

.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 20px);
}

.page-faq .faq-contact__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-contact__card .card__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step-0);
  font-weight: 600;
  line-height: 1.55;
  color: var(--bone);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__card .card__title--plain {
  font-family: var(--font-ui);
  letter-spacing: .01em;
}

.page-faq .faq-contact__card .card__body {
  margin: 0;
  font-size: var(--step--1);
  line-height: 1.72;
  color: var(--text-soft);
}

.page-faq .faq-contact__card .btn {
  margin-top: auto;
  align-self: flex-start;
}

.page-faq .faq-contact__card .copy-btn[data-copied] {
  color: var(--grass);
  border-color: var(--grass);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-check__item {
    grid-template-columns: 128px minmax(0, 1fr) auto;
    align-items: center;
    gap: 24px;
    padding: 18px 6px;
  }

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

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

  .page-faq .faq-format__item {
    grid-template-columns: 86px minmax(0, 1fr);
    gap: 20px;
    padding: 16px 20px;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.72fr);
    gap: clamp(36px, 5vw, 74px);
  }

  .page-faq .faq-download__aside {
    margin-top: 0;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
    align-items: start;
    gap: clamp(32px, 5vw, 62px);
  }

  .page-faq .faq-steps__visual {
    position: sticky;
    top: calc(var(--header-offset) + 28px);
  }
}

@media (min-width: 1160px) {
  .page-faq .faq-mobile__grid,
  .page-faq .faq-contact__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .01ms !important;
  }
}

.page-faq {
  --cic: currentColor;
}