/* ===== 帮助中心页面专属样式 ===== */
.page-faq {
  --faq-banner-gradient: linear-gradient(135deg, rgba(13,20,40,0.92) 0%, rgba(10,12,18,0.96) 60%, rgba(30,45,80,0.70) 100%);
  --faq-card-radius: 6px;
  --faq-border-color: rgba(69,123,157,0.25);
  --faq-glow: 0 0 0 1px rgba(230,57,70,0.15);
  --faq-panel-bg: rgba(13,20,40,0.45);
  display: block;
  width: 100%;
}

/* --- 面包屑 --- */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--color-gray, #A8B2C1);
  margin-bottom: 1.2rem;
  letter-spacing: 0.02em;
}
.page-faq .breadcrumb a {
  color: var(--color-light-blue, #457B9D);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--color-white, #F1FAEE);
  border-color: var(--color-red, #E63946);
}
.page-faq .breadcrumb-sep {
  color: var(--color-gray, #A8B2C1);
  opacity: 0.5;
  user-select: none;
}
.page-faq .breadcrumb [aria-current="page"] {
  color: var(--color-white, #F1FAEE);
  font-weight: 500;
}

/* --- Banner 区域 --- */
.page-faq .faq-banner {
  position: relative;
  overflow: hidden;
  background: var(--faq-banner-gradient);
  border-bottom: 2px solid var(--faq-border-color);
  margin-bottom: 0;
}
.page-faq .faq-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent 0px,
    transparent 38px,
    rgba(69,123,157,0.06) 38px,
    rgba(69,123,157,0.06) 40px
  );
  pointer-events: none;
  z-index: 1;
}
.page-faq .faq-banner-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-top: 2rem;
  padding-bottom: 2rem;
  position: relative;
  z-index: 2;
}
.page-faq .faq-banner-text {
  flex: 1 1 auto;
  max-width: 640px;
}
.page-faq .faq-banner-title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 800;
  font-style: italic;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.05;
  color: var(--color-white, #F1FAEE);
  margin: 0 0 0.6rem;
  letter-spacing: -0.01em;
  text-shadow: 0 2px 12px rgba(0,0,0,0.5);
}
.page-faq .faq-banner-desc {
  font-size: 1.05rem;
  color: var(--color-gray, #A8B2C1);
  line-height: 1.5;
  margin: 0 0 1.4rem;
  max-width: 480px;
}
.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 0;
  max-width: 500px;
  background: rgba(10,12,18,0.7);
  border: 1px solid var(--faq-border-color);
  border-radius: var(--faq-card-radius);
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.page-faq .faq-search:focus-within {
  border-color: var(--color-red, #E63946);
  box-shadow: var(--faq-glow);
}
.page-faq .faq-search-input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 0.75rem 1rem;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.95rem;
  color: var(--color-white, #F1FAEE);
  outline: none;
  min-width: 0;
}
.page-faq .faq-search-input::placeholder {
  color: var(--color-gray, #A8B2C1);
  opacity: 0.7;
}
.page-faq .faq-search-btn {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  color: var(--color-light-blue, #457B9D);
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}
.page-faq .faq-search-btn:hover,
.page-faq .faq-search-btn:focus-visible {
  color: var(--color-red, #E63946);
  background: rgba(230,57,70,0.08);
}
.page-faq .faq-banner-visual {
  position: relative;
  width: 100%;
  max-height: 220px;
  overflow: hidden;
  border-radius: var(--faq-card-radius);
  border: 1px solid var(--faq-border-color);
}
.page-faq .faq-banner-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 220px;
  object-fit: cover;
  object-position: center 30%;
}
.page-faq .faq-banner-frame-deco {
  position: absolute;
  top: 6px;
  right: 6px;
  bottom: 6px;
  left: 6px;
  border: 1px solid rgba(241,250,238,0.08);
  pointer-events: none;
  border-radius: calc(var(--faq-card-radius) - 2px);
}
.page-faq .faq-banner-frame-deco::after {
  content: '';
  position: absolute;
  top: -1px;
  left: 20px;
  right: 20px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-red, #E63946), transparent);
  opacity: 0.3;
}

/* --- 主体区域 --- */
.page-faq .faq-body {
  padding-top: 2rem;
  padding-bottom: 2.5rem;
}

/* --- 标签切换 --- */
.page-faq .faq-tabs-wrapper {
  position: relative;
}
.page-faq .faq-radios {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.page-faq .faq-tab-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.8rem;
  border-bottom: 1px solid var(--faq-border-color);
  padding-bottom: 0.25rem;
}
.page-faq .faq-tab-label {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.2rem;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-gray, #A8B2C1);
  background: transparent;
  border: 1px solid transparent;
  border-bottom: none;
  border-radius: var(--faq-card-radius) var(--faq-card-radius) 0 0;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
  position: relative;
  white-space: nowrap;
}
.page-faq .faq-tab-label:hover {
  color: var(--color-white, #F1FAEE);
  background: rgba(69,123,157,0.12);
}

/* 选中态 — 通过 radio checked 控制相邻兄弟 */
#faq-tab-guide:checked ~ .faq-tab-labels label[for="faq-tab-guide"],
#faq-tab-odds:checked ~ .faq-tab-labels label[for="faq-tab-odds"],
#faq-tab-alert:checked ~ .faq-tab-labels label[for="faq-tab-alert"],
#faq-tab-league:checked ~ .faq-tab-labels label[for="faq-tab-league"] {
  color: var(--color-white, #F1FAEE);
  background: var(--color-red, #E63946);
  border-color: var(--color-red, #E63946);
  box-shadow: 0 -2px 8px rgba(230,57,70,0.25);
}

/* --- 面板容器 --- */
.page-faq .faq-panels {
  position: relative;
  min-height: 320px;
}
.page-faq .faq-panel {
  display: none;
  animation: faq-panel-in 0.35s ease-out;
}
@keyframes faq-panel-in {
  0% { opacity: 0; transform: translateY(10px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* 显示选中的面板 */
#faq-tab-guide:checked ~ .faq-panels #faq-panel-guide,
#faq-tab-odds:checked ~ .faq-panels #faq-panel-odds,
#faq-tab-alert:checked ~ .faq-panels #faq-panel-alert,
#faq-tab-league:checked ~ .faq-panels #faq-panel-league {
  display: block;
}

/* --- 折叠卡片 --- */
.page-faq .faq-card {
  display: block;
  margin-bottom: 0.75rem;
  background: var(--faq-panel-bg);
  border: 1px solid var(--faq-border-color);
  border-radius: var(--faq-card-radius);
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.page-faq .faq-card[open] {
  border-color: rgba(69,123,157,0.45);
  box-shadow: 0 0 0 1px rgba(69,123,157,0.08), 0 8px 24px rgba(0,0,0,0.3);
}
.page-faq .faq-card-summary {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.2rem;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--color-white, #F1FAEE);
  background: rgba(10,12,18,0.35);
  cursor: pointer;
  list-style: none;
  transition: background 0.2s;
  user-select: none;
}
.page-faq .faq-card-summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-card-summary::before {
  content: '';
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-right: 2px solid var(--color-light-blue, #457B9D);
  border-bottom: 2px solid var(--color-light-blue, #457B9D);
  transform: rotate(-45deg);
  transition: transform 0.25s ease;
  margin-top: -2px;
}
.page-faq .faq-card[open] > .faq-card-summary::before {
  transform: rotate(45deg);
  margin-top: 2px;
}
.page-faq .faq-card-summary:hover {
  background: rgba(69,123,157,0.12);
}
.page-faq .faq-card[open] > .faq-card-summary {
  background: rgba(230,57,70,0.06);
  border-bottom: 1px solid var(--faq-border-color);
}
.page-faq .faq-card-body {
  padding: 1.2rem 1.2rem 1.4rem;
  background: linear-gradient(180deg, rgba(13,20,40,0.30) 0%, rgba(10,12,18,0.50) 100%);
}
.page-faq .faq-card-body p {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-gray, #A8B2C1);
}
.page-faq .faq-card-body a {
  color: var(--color-light-blue, #457B9D);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}
.page-faq .faq-card-body a:hover,
.page-faq .faq-card-body a:focus-visible {
  color: var(--color-red, #E63946);
}
.page-faq .faq-card-img {
  display: block;
  width: 100%;
  max-width: 400px;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--faq-border-color);
  background: var(--color-dark, #0B0C10);
  margin: 0.5rem 0 0;
}

/* --- CTA 区域 --- */
.page-faq .faq-cta-section {
  border-top: 1px solid var(--faq-border-color);
  background: rgba(10,12,18,0.35);
}
.page-faq .faq-cta-inner {
  display: flex;
  justify-content: center;
  align-items: center;
  padding-top: 1.8rem;
  padding-bottom: 2rem;
}
.page-faq .faq-cta-text {
  font-size: 1.05rem;
  color: var(--color-gray, #A8B2C1);
  margin: 0;
  text-align: center;
}
.page-faq .faq-cta-link {
  color: var(--color-red, #E63946);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid rgba(230,57,70,0.25);
  transition: border-color 0.2s;
}
.page-faq .faq-cta-link:hover,
.page-faq .faq-cta-link:focus-visible {
  border-color: var(--color-red, #E63946);
}

/* --- 辅助类 --- */
.page-faq .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ===== 窄屏（移动端优先基础样式已在上方） ===== */
/* 额外窄屏优化 */
@media (max-width: 540px) {
  .page-faq .faq-tab-labels {
    gap: 0.35rem;
    padding-bottom: 0.15rem;
  }
  .page-faq .faq-tab-label {
    padding: 0.45rem 0.9rem;
    font-size: 0.82rem;
  }
  .page-faq .faq-card-summary {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
  }
  .page-faq .faq-card-body {
    padding: 1rem 1rem 1.2rem;
  }
  .page-faq .faq-banner-title {
    font-size: 1.8rem;
  }
  .page-faq .faq-banner-desc {
    font-size: 0.92rem;
  }
}

/* ===== 桌面端 ===== */
@media (min-width: 768px) {
  .page-faq .faq-banner-inner {
    flex-direction: row;
    align-items: center;
    gap: 2.5rem;
    padding-top: 2.5rem;
    padding-bottom: 2.5rem;
  }
  .page-faq .faq-banner-text {
    flex: 0 0 55%;
  }
  .page-faq .faq-banner-visual {
    flex: 0 0 40%;
    max-height: 260px;
  }
  .page-faq .faq-banner-img {
    max-height: 260px;
  }
  .page-faq .faq-banner-title {
    font-size: clamp(2.4rem, 4vw, 3.6rem);
  }
  .page-faq .faq-tab-labels {
    gap: 0.75rem;
    padding-bottom: 0.4rem;
  }
  .page-faq .faq-tab-label {
    padding: 0.65rem 1.8rem;
    font-size: 1rem;
  }
  .page-faq .faq-card {
    margin-bottom: 0.9rem;
  }
  .page-faq .faq-card-summary {
    padding: 1rem 1.5rem;
    font-size: 1.02rem;
  }
  .page-faq .faq-card-body {
    padding: 1.4rem 1.5rem 1.6rem;
  }
  .page-faq .faq-card-body p {
    font-size: 1rem;
  }
  .page-faq .faq-panels {
    min-height: 400px;
  }
  .page-faq .faq-cta-inner {
    padding-top: 2.2rem;
    padding-bottom: 2.5rem;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-banner-inner {
    gap: 3.5rem;
    padding-top: 3rem;
    padding-bottom: 3rem;
  }
  .page-faq .faq-banner-text {
    flex: 0 0 50%;
  }
  .page-faq .faq-banner-visual {
    flex: 0 0 45%;
    max-height: 300px;
  }
  .page-faq .faq-banner-img {
    max-height: 300px;
  }
  .page-faq .faq-body {
    padding-top: 2.5rem;
    padding-bottom: 3rem;
  }
}