.page-faq {
  min-width: 0;
  background:
    linear-gradient(0deg, rgba(10, 31, 61, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 31, 61, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

/* ===== Hero 顶部主题声明 ===== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--color-primary);
  color: var(--color-neutral);
  border-bottom: 1px solid var(--color-line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(46, 74, 122, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 74, 122, 0.22) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-gold) 42%, transparent 100%);
  z-index: 2;
}

.page-faq .faq-hero .site-breadcrumb {
  position: relative;
  z-index: 1;
  margin: 0;
  padding-top: 1.5rem;
}

.page-faq .faq-hero .site-breadcrumb__link {
  color: var(--color-gray);
  text-decoration: none;
  transition: color var(--transition);
}

.page-faq .faq-hero .site-breadcrumb__link:hover {
  color: var(--color-accent);
}

.page-faq .faq-hero .site-breadcrumb__item[aria-current="page"] {
  color: var(--color-gold);
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  align-items: center;
  padding: 2.5rem 0 3rem;
}

.page-faq .faq-hero__main {
  min-width: 0;
}

.page-faq .faq-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1rem;
  padding: 0.3rem 0.625rem;
  background: var(--color-accent);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-faq .faq-hero__kicker::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  background: var(--color-primary);
}

.page-faq .faq-hero h1 {
  margin: 0;
  color: var(--color-neutral);
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 0.95;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.page-faq .faq-hero__lead {
  max-width: 36em;
  margin: 1.25rem 0 0;
  color: var(--color-gray);
  font-size: 1rem;
  line-height: 1.7;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 2.25rem;
}

.page-faq .faq-hero__stat {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-gold);
}

.page-faq .faq-hero__stat span {
  display: block;
  margin-top: 0.375rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-gray);
  letter-spacing: 0.04em;
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  background: var(--color-secondary);
  border: 1px solid var(--color-line);
}

.page-faq .faq-hero__figure::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-gold));
  z-index: 1;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  object-fit: cover;
}

.page-faq .faq-hero__figure figcaption {
  margin: 0;
  padding: 0.75rem 1rem;
  color: var(--color-gray);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-top: 1px solid var(--color-line);
}

/* ===== 左目录 + 右内容 ===== */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-top: 2.5rem;
  padding-bottom: 4.5rem;
}

.page-faq .faq-index {
  position: relative;
  display: flex;
  align-items: stretch;
  background: var(--color-secondary);
  border: 1px solid var(--color-line);
}

.page-faq .faq-index .vertical-text {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 1rem 0.5rem;
  background: var(--color-primary);
  color: var(--color-gold);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}

.page-faq .faq-index__nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.25rem;
  width: 100%;
  padding: 0.75rem;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 0.5rem;
  color: var(--color-neutral);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--color-line);
  transition: background-color var(--transition), padding-left var(--transition);
}

.page-faq .faq-index__link:last-child {
  border-bottom: none;
}

.page-faq .faq-index__link:hover {
  background: var(--color-primary);
  padding-left: 0.875rem;
}

.page-faq .faq-index__link span {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-accent);
}

.page-faq .faq-content {
  min-width: 0;
}

.page-faq .faq-section {
  margin-top: 3.5rem;
}

.page-faq .faq-content .faq-section:first-child {
  margin-top: 0;
}

.page-faq .faq-section .section-title {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 1rem;
  padding-bottom: 0.625rem;
  border-bottom: 2px solid var(--color-primary);
}

.page-faq .faq-section .section-title h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  color: var(--color-primary);
}

.page-faq .faq-section .section-title .section-title__caption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.page-faq .faq-section__lead {
  max-width: 52em;
  margin: 0 0 1.5rem;
  color: var(--color-primary);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ===== 常见问题分类 ===== */
.page-faq .faq-cats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-faq .faq-cat {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1.25rem 1.25rem;
  background: var(--color-primary);
  border: 1px solid var(--color-line);
  color: var(--color-neutral);
}

.page-faq .faq-cat::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3.5rem;
  height: 3px;
  background: var(--color-accent);
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: baseline;
  gap: 0.625rem;
  margin-bottom: 0.875rem;
  padding-bottom: 0.875rem;
  border-bottom: 1px solid var(--color-line);
}

.page-faq .faq-cat__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-gold);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.125rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--color-neutral);
}

.page-faq .faq-cat__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--color-line);
}

.page-faq .faq-item + .faq-item {
  border-top: 0;
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.875rem 0;
  color: var(--color-neutral);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  list-style: none;
  transition: color var(--transition);
}

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

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

.page-faq .faq-item summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1;
  color: var(--color-accent);
  transition: transform var(--transition), color var(--transition);
}

.page-faq .faq-item[open] summary::after {
  color: var(--color-gold);
  transform: rotate(45deg);
}

.page-faq .faq-item__body {
  margin: 0;
  padding: 0 0 1rem;
  color: var(--color-gray);
  font-size: 0.90625rem;
  line-height: 1.65;
}

/* ===== 步骤教程：如何筛选联赛 ===== */
.page-faq .faq-tutorial__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

.page-faq .faq-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-faq .faq-step {
  position: relative;
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.25rem;
  background: var(--color-neutral);
  border: 1px solid var(--color-line);
}

.page-faq .faq-step:nth-child(even) {
  background: var(--color-secondary);
  border-color: var(--color-primary);
}

.page-faq .faq-step__num {
  display: grid;
  place-items: center;
  width: 2.8rem;
  height: 2.8rem;
  background: var(--color-accent);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  clip-path: polygon(0 0, 100% 0, 100% 72%, 72% 100%, 0 100%);
}

.page-faq .faq-step:nth-child(even) .faq-step__num {
  background: var(--color-gold);
  color: var(--color-primary);
}

.page-faq .faq-step__body h3 {
  margin: 0 0 0.375rem;
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  text-transform: uppercase;
  color: var(--color-primary);
}

.page-faq .faq-step:nth-child(even) .faq-step__body h3 {
  color: var(--color-neutral);
}

.page-faq .faq-step__body p {
  margin: 0;
  font-size: 0.90625rem;
  line-height: 1.6;
  color: var(--color-gray);
}

.page-faq .faq-step__body a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid var(--color-accent);
}

.page-faq .faq-step__body a:hover {
  color: var(--color-gold);
  border-bottom-color: var(--color-gold);
}

.page-faq .faq-tutorial__figure {
  position: relative;
  margin: 0;
  padding: 1rem 1rem 0.75rem;
  background: var(--color-primary);
  border: 1px solid var(--color-line);
}

.page-faq .faq-tutorial__figure::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4rem;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-gold));
}

.page-faq .faq-tutorial__figure img {
  display: block;
  width: 100%;
  object-fit: cover;
  border: 1px solid var(--color-line);
}

.page-faq .faq-tutorial__figure figcaption {
  margin: 0.875rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-line);
  color: var(--color-gray);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

/* ===== iOS本地版使用说明 ===== */
.page-faq .faq-ios__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-faq .faq-ios-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-faq .faq-ios-feature {
  position: relative;
  margin: 0;
  padding: 1.25rem 1.25rem 1.25rem 1.5rem;
  background: var(--color-primary);
  border-left: 4px solid var(--color-accent);
  color: var(--color-neutral);
}

.page-faq .faq-ios-feature h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.page-faq .faq-ios-feature p {
  margin: 0;
  font-size: 0.90625rem;
  line-height: 1.6;
  color: var(--color-gray);
}

.page-faq .faq-ios-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faq-ios-step;
}

.page-faq .faq-ios-steps li {
  position: relative;
  counter-increment: faq-ios-step;
  margin: 0;
  padding: 0 0 1.75rem 3.5rem;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-primary);
}

.page-faq .faq-ios-steps li:last-child {
  padding-bottom: 0;
}

.page-faq .faq-ios-steps li::before {
  content: counter(faq-ios-step, decimal-leading-zero);
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--color-primary);
  color: var(--color-gold);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.page-faq .faq-ios-steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 2.5rem;
  left: 1.25rem;
  bottom: 0;
  width: 1px;
  background: var(--color-line);
}

/* ===== 联系支持 ===== */
.page-faq .faq-support__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-faq .faq-support-card {
  position: relative;
  padding: 2rem 1.5rem 1.5rem;
  background: var(--color-neutral);
  border: 1px solid var(--color-line);
  color: var(--color-primary);
}

.page-faq .faq-support-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-primary);
}

.page-faq .faq-support-card:nth-child(2)::before {
  background: var(--color-accent);
}

.page-faq .faq-support-card:nth-child(3)::before {
  background: var(--color-gold);
}

.page-faq .faq-support-card__icon {
  display: inline-grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  margin-bottom: 1rem;
  background: var(--color-primary);
  color: var(--color-gold);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.page-faq .faq-support-card:nth-child(2) .faq-support-card__icon {
  background: var(--color-accent);
  color: var(--color-primary);
}

.page-faq .faq-support-card:nth-child(3) .faq-support-card__icon {
  background: var(--color-gold);
  color: var(--color-primary);
}

.page-faq .faq-support-card h3 {
  margin: 0 0 1rem;
  font-family: var(--font-heading);
  font-size: 1.125rem;
  text-transform: uppercase;
  color: var(--color-primary);
}

.page-faq .faq-support-card p {
  margin: 0 0 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-primary);
  overflow-wrap: anywhere;
}

.page-faq .faq-support-card .faq-support-card__note {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--color-gray);
}

.page-faq .faq-support-card a {
  display: inline-block;
  margin-top: 1.25rem;
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid var(--color-accent);
  transition: color var(--transition), border-color var(--transition);
}

.page-faq .faq-support-card a:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.page-faq .faq-support__note {
  margin: 1.5rem 0 0;
  padding: 1rem 1.25rem;
  background: var(--color-primary);
  border-left: 3px solid var(--color-gold);
  color: var(--color-gray);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* ===== 响应式增强 ===== */
@media (min-width: 48em) {
  .page-faq .faq-support__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .faq-ios__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .page-faq .faq-hero__figure img {
    height: 100%;
  }
}

@media (min-width: 56em) {
  .page-faq .faq-cats {
    grid-template-columns: 1fr 1fr;
    gap: 1.75rem;
  }

  .page-faq .faq-tutorial__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
    gap: 2rem;
  }
}

@media (min-width: 60em) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 3rem;
    padding: 4rem 0;
  }

  .page-faq .faq-hero__figure img {
    aspect-ratio: 2 / 1;
  }
}

@media (min-width: 64em) {
  .page-faq .faq-layout {
    grid-template-columns: 16rem minmax(0, 1fr);
    gap: 3rem;
    padding-top: 3rem;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 1.25rem;
    align-self: start;
    flex-direction: column;
  }

  .page-faq .faq-index .vertical-text {
    writing-mode: vertical-rl;
  }

  .page-faq .faq-index__nav {
    display: flex;
    flex-direction: column;
    padding: 0.75rem;
  }

  .page-faq .faq-index__link {
    padding: 0.75rem 0.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-step,
  .page-faq .faq-support-card,
  .page-faq .faq-index__link,
  .page-faq .faq-item summary {
    transform: none;
    transition: none;
  }
}