.page-faq {
  position: relative;
  background-color: var(--ink-950);
  background-image:
    repeating-linear-gradient(90deg, rgba(44, 76, 66, 0.16) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(0deg, rgba(44, 76, 66, 0.16) 0 1px, transparent 1px 88px);
  color: var(--paper-050);
  overflow-x: hidden;
}

.page-faq .qh-shell {
  min-width: 0;
}

.page-faq .faq-band {
  position: relative;
  padding-block: clamp(36px, 5vw, 76px);
  border-top: var(--hair);
}

.page-faq .faq-band:first-child {
  border-top: 0;
}

.page-faq .faq-band h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.005em;
  margin: 0 0 16px;
  max-width: 22ch;
}

.page-faq .faq-band h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  margin: 0 0 8px;
}

.page-faq .faq-band p {
  margin: 0 0 12px;
}

.page-faq .faq-head {
  margin-bottom: clamp(20px, 3vw, 34px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding-block: clamp(36px, 6vw, 84px) clamp(30px, 4vw, 58px);
}

.page-faq .faq-crumbs {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-hero__label {
  display: inline-block;
  margin-bottom: 18px;
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(40px, 9.5vw, 96px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  margin: 0 0 22px;
  max-width: 16ch;
}

.page-faq .faq-hero__lead {
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.85;
  max-width: 60ch;
  color: var(--paper-050);
  margin: 0 0 30px;
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: 0;
  padding: 18px 0 0;
  border-top: var(--hair);
  display: flex;
  flex-wrap: wrap;
  gap: 14px 44px;
}

.page-faq .faq-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 20px;
  color: var(--lime-400);
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__unit {
  font-size: 13px;
  color: var(--slate-400);
}

/* ---------- 筛选条 ---------- */

.page-faq .faq-filterbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(20px, 3vw, 32px);
  padding: 12px;
  border: var(--hair);
  background-color: var(--pitch-900);
}

.page-faq .faq-filterbar .qh-filter {
  font-size: 13px;
}

/* ---------- 问题区两栏 ---------- */

.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  min-width: 0;
}

.page-faq .faq-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  align-content: start;
  min-width: 0;
}

/* ---------- 问题卡片 ---------- */

.page-faq .faq-card {
  border: var(--hair);
  background-color: var(--pitch-900);
  min-width: 0;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-faq .faq-card:hover {
  border-color: var(--lime-400);
}

.page-faq .faq-card[open] {
  border-color: var(--lime-400);
  background-color: var(--pitch-700);
}

.page-faq .faq-card__q {
  cursor: pointer;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 12px;
  padding: 15px 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
}

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

.page-faq .faq-card__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 17px;
  line-height: 1;
  color: var(--lime-400);
  transform: translateY(2px);
}

.page-faq .faq-card[open] .faq-card__q::after {
  content: "–";
}

.page-faq .faq-card__tag {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  line-height: 1.6;
  color: var(--amber-500);
  border: 1px solid var(--line-300);
  padding: 1px 7px;
}

.page-faq .faq-card__text {
  flex: 1 1 160px;
  min-width: 0;
}

.page-faq .faq-card__a {
  padding: 14px 18px 18px;
  border-top: var(--hair);
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-050);
}

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

.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper-050);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--amber-500);
  padding-top: 3px;
}

/* ---------- 右侧步骤轨道 ---------- */

.page-faq .faq-rail {
  border: var(--hair);
  background-color: var(--pitch-900);
  padding: 20px 20px 22px;
  align-self: start;
}

.page-faq .faq-rail__title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--slate-400);
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: var(--hair);
}

.page-faq .faq-rail__list {
  list-style: none;
  counter-reset: faqrail;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-rail__item {
  counter-increment: faqrail;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--line-300);
  transition: border-color 0.2s ease;
}

.page-faq .faq-rail__item:hover {
  border-left-color: var(--lime-400);
}

.page-faq .faq-rail__item::before {
  content: counter(faqrail, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--lime-400);
  line-height: 1.6;
}

.page-faq .faq-rail__name {
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper-050);
}

.page-faq .faq-rail__foot {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: var(--hair);
  font-family: var(--font-editorial);
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate-400);
}

/* ---------- 换设备 ---------- */

.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}

.page-faq .faq-track {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-faq .faq-track__step {
  position: relative;
  padding: 0 0 28px 58px;
}

.page-faq .faq-track__step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-track__step::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 36px;
  bottom: 0;
  width: 1px;
  background-color: var(--line-300);
}

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

.page-faq .faq-track__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid var(--lime-400);
  background-color: var(--ink-950);
  color: var(--lime-400);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
}

.page-faq .faq-track__step h3 {
  margin-top: 4px;
}

.page-faq .faq-track__step p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate-400);
  margin-bottom: 0;
}

/* ---------- 图片 ---------- */

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

.page-faq .faq-fig__box {
  border: var(--hair);
  background-color: var(--pitch-900);
  overflow: hidden;
}

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

.page-faq .faq-fig .qh-media__caption {
  display: block;
  margin-top: 12px;
  font-family: var(--font-editorial);
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate-400);
}

/* ---------- 约看球准备 ---------- */

.page-faq .faq-prep__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.page-faq .faq-prep__list {
  list-style: none;
  counter-reset: faqprep;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-prep__item {
  counter-increment: faqprep;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 20px;
  border: var(--hair);
  background-color: var(--pitch-900);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-faq .faq-prep__item:hover {
  border-color: var(--lime-400);
  background-color: var(--pitch-700);
}

.page-faq .faq-prep__item::before {
  content: counter(faqprep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.1;
  color: var(--amber-500);
}

.page-faq .faq-prep__item h3 {
  grid-column: 2;
  margin-top: -4px;
}

.page-faq .faq-prep__item p {
  grid-column: 2;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate-400);
  margin: 0;
}

/* ---------- 帮助文档分区 ---------- */

.page-faq .faq-docs__tabs {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-faq .faq-doctab {
  border: var(--hair);
  background-color: var(--pitch-900);
  align-self: start;
  min-width: 0;
  transition: border-color 0.2s ease;
}

.page-faq .faq-doctab:hover {
  border-color: var(--lime-400);
}

.page-faq .faq-doctab[open] {
  border-color: var(--lime-400);
  background-color: var(--pitch-700);
}

.page-faq .faq-doctab > summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 15px 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.5;
}

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

.page-faq .faq-doctab > summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--lime-400);
  transform: translateY(2px);
}

.page-faq .faq-doctab[open] > summary::after {
  content: "–";
}

.page-faq .faq-doctab__count {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--amber-500);
}

.page-faq .faq-doctab[open] > summary {
  border-bottom: var(--hair);
}

.page-faq .faq-doctab__list {
  list-style: none;
  margin: 0;
  padding: 14px 18px 18px;
  display: grid;
  gap: 10px;
}

.page-faq .faq-doctab__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper-050);
}

.page-faq .faq-doctab__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 1px;
  background-color: var(--lime-400);
}

/* ---------- 联系协助 ---------- */

.page-faq .faq-help__panel {
  padding: clamp(24px, 4vw, 48px);
}

.page-faq .faq-contact {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 0;
  border-top: var(--hair);
  align-items: baseline;
}

.page-faq .faq-contact__key {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--slate-400);
}

.page-faq .faq-contact__val {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--lime-200);
  word-break: break-all;
}

.page-faq .faq-help__tip {
  margin: 22px 0 0;
  font-family: var(--font-editorial);
  font-size: 14px;
  line-height: 1.85;
  color: var(--slate-400);
  max-width: 62ch;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 动效降级 ---------- */

.page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.22s ease, transform 0.22s ease;
}

.page-faq [data-reveal][data-shown] {
  opacity: 1;
  transform: none;
}

.page-faq .qh-js [data-reveal] {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-faq .faq-card,
  .page-faq .faq-rail__item,
  .page-faq .faq-prep__item,
  .page-faq .faq-doctab {
    transition: none;
  }
}

/* ---------- 中等屏 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact__row:nth-child(2) {
    border-top: var(--hair);
  }

  .page-faq .faq-docs__tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }
}

/* ---------- 桌面 ---------- */

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 56px;
  }

  .page-faq .faq-prep__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 52px;
  }

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

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 296px;
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 132px;
  }
}

@media (min-width: 1140px) {
  .page-faq .faq-docs__tabs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}