.page-faq {
  --faq-measure: 64ch;
  --faq-num-col: 76px;
  padding-block-end: 96px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: 44px 48px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: 0;
  inset-inline-end: -18%;
  top: -34%;
  width: 64%;
  height: 150%;
  background: linear-gradient(158deg, rgba(0, 230, 195, 0.11) 0%, rgba(0, 230, 195, 0) 60%);
  border-inline-start: 1px solid rgba(0, 230, 195, 0.3);
  transform: rotate(-7deg);
  pointer-events: none;
}

.page-faq .faq-hero .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__body {
  display: grid;
  gap: 34px;
  margin-block-start: 26px;
}

.page-faq .faq-hero__lead h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -0.012em;
  margin: 14px 0 0;
  max-width: 19ch;
  color: var(--text);
}

.page-faq .faq-hero__intro {
  max-width: var(--faq-measure);
  margin-block-start: 22px;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.9;
  color: var(--text);
}

.page-faq .faq-hero__facts {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--line);
  align-self: end;
}

.page-faq .faq-fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-fact dt {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--silver);
  margin: 0;
}

.page-faq .faq-fact dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  white-space: nowrap;
}

/* ---------- 章节目录条 ---------- */

.page-faq .faq-toc {
  position: sticky;
  top: 0;
  z-index: 6;
  background: var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-toc__list {
  display: flex;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-toc__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-toc__list li {
  flex: 0 0 auto;
}

.page-faq .faq-toc__list a {
  display: block;
  padding: 14px 18px 13px 0;
  margin-inline-end: 18px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
  white-space: nowrap;
}

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

/* ---------- 通用章节 ---------- */

.page-faq .faq-section {
  padding-block: 48px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-section--last {
  border-bottom: 0;
}

.page-faq .faq-section .section-head {
  margin-block-end: 8px;
}

/* ---------- 三步开始 ---------- */

.page-faq .faq-figure {
  margin: 30px 0 0;
}

.page-faq .faq-figure .media {
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-faq .faq-figure .media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .media__caption {
  display: block;
  margin-block-start: 10px;
  font-family: var(--font-data);
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 38px 0 0;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 28px 0 30px 22px;
  border-left: 2px solid var(--line);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: -2px;
  width: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 280ms var(--ease);
}

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

.page-faq .faq-step__num {
  font-family: var(--font-data);
  font-size: 42px;
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-faq .faq-step__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.34;
  margin: 0 0 12px;
  color: var(--text);
}

.page-faq .faq-step__body p {
  max-width: var(--faq-measure);
  margin: 0 0 14px;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}

.page-faq .faq-step__body p:last-child {
  margin-block-end: 0;
}

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

/* ---------- 浅绿提示块（全页限三处） ---------- */

.page-faq .faq-hint {
  max-width: var(--faq-measure);
  background: var(--paper);
  color: var(--ink-950);
  border-inline-start: 4px solid var(--cyan);
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 通道位置 ---------- */

.page-faq .faq-lane {
  margin-block-start: 34px;
}

.page-faq .faq-lane__item {
  position: relative;
  padding-inline-start: 42px;
  padding-block-end: 32px;
}

.page-faq .faq-lane__item:last-child {
  padding-block-end: 0;
}

.page-faq .faq-lane__item::before {
  content: "";
  position: absolute;
  inset-inline-start: 9px;
  top: 22px;
  bottom: 0;
  width: 2px;
  background: var(--line);
}

.page-faq .faq-lane__item:last-child::before {
  display: none;
}

.page-faq .faq-lane__item::after {
  content: "";
  position: absolute;
  inset-inline-start: 4px;
  top: 8px;
  width: 12px;
  height: 12px;
  background: var(--ink-900);
  box-shadow: inset 0 0 0 2px var(--cyan);
}

.page-faq .faq-lane__item h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.4;
  margin: 0 0 10px;
  color: var(--text);
}

.page-faq .faq-lane__item p {
  max-width: var(--faq-measure);
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}

.page-faq .faq-lane + .faq-hint {
  margin-block-start: 34px;
}

/* ---------- 赛事卡操作 ---------- */

.page-faq .faq-split {
  display: grid;
  gap: 34px;
  margin-block-start: 32px;
}

.page-faq .faq-split__text {
  display: grid;
  gap: 26px;
}

.page-faq .faq-block h3 {
  font-family: var(--font-data);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 10px;
  color: var(--orange);
}

.page-faq .faq-block p {
  max-width: var(--faq-measure);
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}

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

.page-faq .faq-split__figure .media {
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-faq .faq-split__figure .media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 筛选与展开 ---------- */

.page-faq .faq-plays {
  margin-block-start: 30px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-play {
  display: grid;
  gap: 10px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-play__name {
  font-family: var(--font-data);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0;
  color: var(--paper);
}

.page-faq .faq-play__desc {
  max-width: 66ch;
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}

/* ---------- 异常排查流程 ---------- */

.page-faq .faq-flow {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
}

.page-faq .faq-flow__node {
  position: relative;
  border: 1px solid var(--line);
  background: var(--ink-800);
  padding: 18px 20px 22px;
  margin-block-end: 30px;
}

.page-faq .faq-flow__node:last-child {
  margin-block-end: 0;
}

.page-faq .faq-flow__node::after {
  content: "";
  position: absolute;
  inset-inline-start: 26px;
  bottom: -30px;
  width: 1px;
  height: 30px;
  background: var(--line);
}

.page-faq .faq-flow__node:last-child::after {
  display: none;
}

.page-faq .faq-flow__step {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
  border: 1px solid var(--orange);
  padding: 3px 9px;
  margin-block-end: 14px;
}

.page-faq .faq-flow__node h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.38;
  margin: 0 0 10px;
  color: var(--text);
}

.page-faq .faq-flow__node p {
  max-width: var(--faq-measure);
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}

.page-faq .faq-flow + .faq-hint {
  margin-block-start: 34px;
}

/* ---------- 联系与反馈 ---------- */

.page-faq .faq-help {
  padding: 30px 24px 34px;
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.page-faq .faq-help > p {
  max-width: var(--faq-measure);
  margin: 20px 0 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-help__list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}

.page-faq .faq-help__label {
  display: inline-block;
  min-width: 74px;
  margin-inline-end: 12px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

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

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding-block: 64px 60px;
  }

  .page-faq .faq-hero__body {
    grid-template-columns: minmax(0, 7fr) minmax(200px, 3fr);
    gap: 48px;
    align-items: end;
    margin-block-start: 34px;
  }

  .page-faq .faq-section {
    padding-block: 64px;
  }

  .page-faq .faq-step {
    grid-template-columns: var(--faq-num-col) minmax(0, 1fr);
    gap: 30px;
    padding: 34px 0 34px 30px;
  }

  .page-faq .faq-step__num {
    font-size: 66px;
  }

  .page-faq .faq-step__title {
    font-size: 24px;
  }

  .page-faq .faq-play {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 34px;
    align-items: baseline;
    padding: 24px 0;
  }

  .page-faq .faq-flow__node {
    padding: 22px 26px 26px;
  }

  .page-faq .faq-help {
    padding: 40px 36px 44px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-lane {
    max-width: 76ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step::before,
  .page-faq .faq-toc__list a {
    transition: none;
  }

  .page-faq .faq-step::before {
    transform: scaleY(1);
    opacity: 0;
  }

  .page-faq .faq-step:hover::before,
  .page-faq .faq-step:focus-within::before {
    opacity: 1;
  }
}