.page-faq{
  position: relative;
  background: var(--bg-night);
  color: var(--text-light);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
}
.page-faq *,
.page-faq *::before,
.page-faq *::after{
  box-sizing: border-box;
}
.page-faq a{
  color: var(--accent-neon);
  text-decoration: none;
  transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.page-faq a:hover{
  color: var(--accent-electric);
}

/* 顶部横幅 */
.page-faq .faq-hero{
  position: relative;
  padding: 40px 16px 0;
  overflow: hidden;
  background: linear-gradient(135deg, #141024 0%, #0B0A0F 72%);
  border-bottom: 2px solid var(--line-wine);
}
.page-faq .faq-hero::before{
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle, rgba(180, 75, 255, 0.10) 1.5px, transparent 1.5px),
    linear-gradient(60deg, rgba(255, 51, 92, 0.05) 1px, transparent 1px);
  background-size: 20px 20px, 38px 38px;
}
.page-faq .faq-hero-inner{
  position: relative;
  max-width: var(--content-max);
  margin: 0 auto;
}
.page-faq .faq-hero-title{
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: 0.01em;
  margin: 16px 0 12px;
  color: var(--text-light);
}
.page-faq .faq-hero-title-highlight{
  background: linear-gradient(135deg, var(--accent-peach) 0%, var(--accent-strawberry) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.page-faq .faq-hero-desc{
  margin: 0 0 20px;
  font-size: 15px;
  color: var(--text-muted);
  max-width: 720px;
}
.page-faq .faq-hero-desc strong{
  color: var(--text-light);
  font-weight: 600;
}
.page-faq .faq-hero-actions{
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
  padding-bottom: 24px;
}
.page-faq .faq-search-widget{
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(20, 16, 36, 0.78);
  border: 2px solid var(--line-dim);
  border-left: 4px solid var(--accent-electric);
  color: var(--text-light);
  font-size: 15px;
  box-shadow: var(--shadow-offset);
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}
.page-faq .faq-search-widget:hover{
  border-color: var(--accent-neon);
  background: rgba(180, 75, 255, 0.12);
  transform: translateY(-2px);
}
.page-faq .faq-search-icon{
  position: relative;
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--accent-electric);
  border-radius: 50%;
  flex: 0 0 auto;
}
.page-faq .faq-search-icon::after{
  content: "";
  position: absolute;
  right: -6px;
  bottom: -4px;
  width: 8px;
  height: 2px;
  background: var(--accent-electric);
  transform: rotate(45deg);
}
.page-faq .faq-search-label{
  font-weight: 600;
}
.page-faq .faq-search-badge{
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: #0B0A0F;
  background: var(--accent-orange);
  padding: 3px 8px;
  margin-left: auto;
}
.page-faq .faq-stat-row{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-faq .faq-stat{
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 12px;
  border: 1px solid var(--line-wine);
  background: rgba(20, 16, 36, 0.6);
  font-size: 13px;
  color: var(--text-muted);
}
.page-faq .faq-stat strong{
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--accent-orange);
  font-weight: 700;
}
.page-faq .faq-hero-img{
  display: block;
  width: 100%;
  max-height: 300px;
  height: auto;
  object-fit: cover;
  margin-top: 20px;
  border-top: 1px solid rgba(255, 136, 176, 0.24);
}

/* 顶部检索提示条 */
.page-faq .faq-tipbar{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  justify-content: space-between;
  margin-top: 32px;
  margin-bottom: 0;
  padding: 16px 20px;
  background: linear-gradient(90deg, rgba(255, 136, 176, 0.12) 0%, rgba(180, 75, 255, 0.06) 100%);
  border: 1px solid var(--line-dim);
  border-left: 4px solid var(--accent-peach);
}
.page-faq .faq-tipbar-flag{
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-strawberry);
  letter-spacing: 0.04em;
}
.page-faq .faq-tipbar-text{
  flex: 1 1 220px;
  min-width: 220px;
  margin: 0;
  font-size: 15px;
  color: var(--text-muted);
}
.page-faq .faq-tipbar-actions{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* 技能树主体 */
.page-faq .faq-tree{
  padding: 48px 16px 72px;
  max-width: var(--content-max);
  margin: 0 auto;
  background-image:
    radial-gradient(circle, rgba(180, 75, 255, 0.06) 1.5px, transparent 1.5px),
    linear-gradient(150deg, rgba(138, 123, 166, 0.04) 1px, transparent 1px);
  background-size: 26px 26px, 42px 42px;
}
.page-faq .faq-branch{
  display: block;
  margin-bottom: 56px;
  position: relative;
}
.page-faq .faq-branch-node{
  margin-bottom: 16px;
}
.page-faq .faq-node-link{
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-panel);
  border: 2px solid var(--line-dim);
  border-left-width: 4px;
  color: var(--text-light);
  font-weight: 600;
  font-size: 15px;
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.32);
  transition: background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.page-faq .faq-node-link:hover{
  transform: translateY(-2px) translateX(2px);
  box-shadow: 7px 7px 0 rgba(0, 0, 0, 0.38);
}
.page-faq .faq-node-shape{
  display: inline-block;
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}
.page-faq .faq-node-count{
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: #0B0A0F;
  background: var(--accent-orange);
  padding: 2px 8px;
}
.page-faq .faq-branch-node--access{
  --node-accent: var(--accent-peach);
  --node-bg: rgba(255, 136, 176, 0.14);
}
.page-faq .faq-branch-node--search{
  --node-accent: var(--accent-neon);
  --node-bg: rgba(180, 75, 255, 0.14);
}
.page-faq .faq-branch-node--archive{
  --node-accent: var(--accent-electric);
  --node-bg: rgba(0, 229, 255, 0.12);
}
.page-faq .faq-branch-node--series{
  --node-accent: var(--accent-orange);
  --node-bg: rgba(255, 179, 0, 0.14);
}
.page-faq .faq-branch-node--adapt{
  --node-accent: var(--accent-strawberry);
  --node-bg: rgba(255, 51, 92, 0.14);
}
.page-faq .faq-node-link{
  border-left-color: var(--node-accent, var(--accent-neon));
}
.page-faq .faq-node-link:hover{
  border-color: var(--node-accent, var(--accent-neon));
  background: var(--node-bg, rgba(180, 75, 255, 0.14));
}
.page-faq .faq-branch-node--access .faq-node-shape{
  background: var(--accent-peach);
  border-radius: 50%;
}
.page-faq .faq-branch-node--search .faq-node-shape{
  background: var(--accent-neon);
  border-radius: 3px;
}
.page-faq .faq-branch-node--archive .faq-node-shape{
  background: var(--accent-electric);
  clip-path: polygon(50% 0%, 100% 78%, 86% 100%, 14% 100%, 0% 78%);
}
.page-faq .faq-branch-node--series .faq-node-shape{
  background: transparent;
  border: 3px solid var(--accent-orange);
  border-radius: 50%;
}
.page-faq .faq-branch-node--adapt .faq-node-shape{
  background: var(--accent-strawberry);
  border-radius: 3px;
  transform: rotate(45deg);
}

/* 答案区 */
.page-faq .faq-branch-answers{
  scroll-margin-top: 28px;
  min-width: 0;
}
.page-faq .faq-branch-answers-main{
  min-width: 0;
}
.page-faq .faq-group-title{
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 16px;
  padding-left: 12px;
  border-left: 4px solid var(--accent-neon);
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--text-light);
  line-height: 1.2;
}
.page-faq .faq-group-no{
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--accent-orange);
}
.page-faq .faq-card{
  border: 2px solid var(--line-dim);
  background: rgba(20, 16, 36, 0.78);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.32);
}
.page-faq .faq-item{
  border-bottom: 1px solid var(--line-dim);
  transition: background .2s ease;
}
.page-faq .faq-item:last-child{
  border-bottom: 0;
}
.page-faq .faq-item[open]{
  background: rgba(180, 75, 255, 0.04);
}
.page-faq .faq-q{
  list-style: none;
  cursor: pointer;
  padding: 18px 20px 18px 44px;
  position: relative;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text-light);
  user-select: none;
  transition: background .2s ease, color .2s ease;
}
.page-faq .faq-q::-webkit-details-marker{
  display: none;
}
.page-faq .faq-q::before{
  content: "";
  position: absolute;
  left: 18px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--accent-electric);
  border-bottom: 2px solid var(--accent-electric);
  transform: translateY(-60%) rotate(45deg);
  transition: transform .2s ease;
}
.page-faq .faq-item[open] .faq-q::before{
  transform: translateY(-25%) rotate(225deg);
}
.page-faq .faq-q:hover{
  background: rgba(180, 75, 255, 0.10);
  color: var(--accent-peach);
}
.page-faq .faq-item[open] .faq-q{
  border-bottom: 1px solid var(--line-wine);
}
.page-faq .faq-a{
  padding: 0 20px 20px 44px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.65;
}
.page-faq .faq-a p{
  margin: 0 0 12px;
}
.page-faq .faq-a p:last-child{
  margin-bottom: 0;
}
.page-faq .faq-a a{
  color: var(--accent-electric);
  border-bottom: 1px solid rgba(0, 229, 255, 0.4);
  padding-bottom: 1px;
}
.page-faq .faq-a a:hover{
  color: var(--accent-peach);
  border-bottom-color: var(--accent-peach);
}
.page-faq .faq-steps{
  margin: 0 0 12px 18px;
  padding-left: 0;
  color: var(--text-light);
  font-size: 15px;
}
.page-faq .faq-steps li{
  margin-bottom: 8px;
}
.page-faq .faq-steps li::marker{
  color: var(--accent-strawberry);
  font-family: var(--font-mono);
}

/* 手机演示图 */
.page-faq .faq-phone-figure{
  margin: 20px 0 0;
  padding: 12px;
  border: 2px solid var(--line-wine);
  background: #0B0A0F;
  box-shadow: var(--shadow-offset);
  max-width: 340px;
}
.page-faq .faq-phone-img{
  display: block;
  width: 100%;
  height: auto;
  margin: 0;
}
.page-faq .faq-phone-figure figcaption{
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* 底部补充引导 */
.page-faq .faq-extra-note{
  margin-top: 16px;
  padding: 24px;
  background: linear-gradient(135deg, rgba(255, 51, 92, 0.10) 0%, rgba(0, 229, 255, 0.05) 100%);
  border: 2px solid var(--line-wine);
  border-left: 6px solid var(--accent-strawberry);
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
}
.page-faq .faq-extra-note p{
  margin: 0;
  font-size: 15px;
  color: var(--text-muted);
  max-width: 680px;
}

/* 桌面端增强 */
@media (min-width: 860px){
  .page-faq .faq-hero{
    padding-top: 64px;
  }
  .page-faq .faq-hero-title{
    font-size: 46px;
    max-width: 920px;
  }
  .page-faq .faq-hero-desc{
    font-size: 17px;
    max-width: 700px;
  }
  .page-faq .faq-hero-actions{
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 32px;
  }
  .page-faq .faq-stat{
    font-size: 14px;
  }
  .page-faq .faq-stat strong{
    font-size: 26px;
  }
  .page-faq .faq-tipbar{
    margin-top: 40px;
    padding: 18px 24px;
  }
  .page-faq .faq-tree{
    padding: 64px 24px 88px;
  }
  .page-faq .faq-branch{
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
    margin-bottom: 72px;
  }
  .page-faq .faq-branch-node{
    position: sticky;
    top: 24px;
    margin-bottom: 0;
    z-index: 1;
  }
  .page-faq .faq-branch-node::after{
    content: "";
    position: absolute;
    top: 50%;
    right: -32px;
    width: 32px;
    height: 1px;
    background: var(--accent-neon);
    opacity: 0.5;
  }
  .page-faq .faq-node-link{
    width: 100%;
    font-size: 16px;
  }
  .page-faq .faq-group-title{
    font-size: 28px;
  }
  .page-faq .faq-group-no{
    font-size: 22px;
  }
  .page-faq .faq-q{
    font-size: 17px;
    padding-top: 20px;
    padding-bottom: 20px;
  }
  .page-faq .faq-a{
    font-size: 16px;
  }
  .page-faq .faq-branch-answers{
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    grid-template-rows: auto 1fr;
    gap: 20px 24px;
  }
  .page-faq .faq-branch-answers .faq-group-title{
    grid-column: 1 / -1;
    grid-row: 1;
  }
  .page-faq .faq-branch-answers .faq-branch-answers-main{
    grid-column: 1;
    grid-row: 2;
  }
  .page-faq .faq-branch-answers .faq-phone-figure{
    grid-column: 2;
    grid-row: 2;
    margin-top: 0;
    max-width: none;
  }
  .page-faq .faq-extra-note{
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 28px 32px;
  }
  .page-faq .faq-extra-note p{
    margin: 0;
    font-size: 16px;
  }
}