/* ===== page-faq 帮助中心专属样式 ===== */
.page-faq {
  --faq-card-shadow: 0 4px 16px rgba(0,0,0,0.35);
  --faq-line-width: 1px;
  --faq-tip-rotate: -0.6deg;
  background: var(--bg-deep);
  color: var(--text-light);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

/* 面包屑 */
.page-faq .breadcrumb {
  padding-top: 112px;
  margin-bottom: 6px;
}
.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
}
.page-faq .breadcrumb a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-faq .breadcrumb a:hover {
  color: var(--accent-pink);
}
.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--grid-line);
}
.page-faq .breadcrumb li[aria-current="page"] {
  color: var(--text-light);
  opacity: 0.75;
}

/* 首屏标题区 */
.page-faq .faq-hero {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 30px 0 42px;
}
.page-faq .hero-index {
  color: var(--accent-pink);
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: 33px;
  font-weight: 700;
  line-height: 1.18;
  margin: 0 0 12px;
  letter-spacing: 0.5px;
}
.page-faq .hero-desc {
  font-size: 15px;
  line-height: 1.75;
  max-width: 540px;
  color: var(--text-light);
  opacity: 0.85;
  margin: 0;
}
.page-faq .hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.page-faq .stat-badge {
  background: var(--bg-panel);
  border: 1px solid var(--grid-line);
  border-radius: 6px;
  padding: 14px 8px;
  text-align: center;
  box-shadow: var(--faq-card-shadow);
}
.page-faq .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1.2;
  color: var(--accent-amber);
  font-weight: 500;
}
.page-faq .stat-label {
  display: block;
  font-size: 12px;
  color: var(--text-light);
  opacity: 0.7;
  margin-top: 4px;
}

/* 分区标题统一节奏 */
.page-faq .section-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}
.page-faq .section-index {
  font-size: 13px;
  color: var(--accent-pink);
  letter-spacing: 1px;
  white-space: nowrap;
}
.page-faq .section-title {
  font-family: var(--font-display);
  font-size: 24px;
  margin: 0;
  line-height: 1.3;
}
.page-faq .section-line {
  flex: 1;
  height: 1px;
  background: var(--grid-line);
}

/* ===== 01 常用问题 ===== */
.page-faq .faq-common {
  padding: 42px 0 50px;
  background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-panel) 60%, var(--bg-deep) 100%);
}
.page-faq .faq-list {
  border-top: 1px solid var(--grid-line);
}
.page-faq .faq-item {
  border-bottom: 1px solid var(--grid-line);
  background: var(--bg-panel);
  border-radius: 0;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}
.page-faq .faq-item[open] {
  background: rgba(22, 18, 31, 0.9);
  box-shadow: inset 3px 0 0 var(--accent-primary);
}
.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 16px;
  cursor: pointer;
  list-style: none;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary:hover {
  background: rgba(164, 117, 255, 0.04);
}
.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent-primary);
  min-width: 26px;
}
.page-faq .faq-q {
  flex: 1;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.45;
}
.page-faq .faq-icon {
  position: relative;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.page-faq .faq-icon::before,
.page-faq .faq-icon::after {
  content: "";
  position: absolute;
  background: var(--accent-pink);
  transition: transform 0.25s ease;
}
.page-faq .faq-icon::before {
  width: 16px;
  height: 2px;
  top: 7px;
  left: 0;
}
.page-faq .faq-icon::after {
  width: 2px;
  height: 16px;
  top: 0;
  left: 7px;
}
.page-faq .faq-item[open] .faq-icon::after {
  transform: scaleY(0);
}
.page-faq .faq-a {
  padding: 0 18px 20px 56px;
  font-size: 14px;
  color: var(--text-light);
  opacity: 0.92;
  line-height: 1.75;
}
.page-faq .faq-a ul,
.page-faq .faq-a ol {
  margin: 8px 0;
  padding-left: 20px;
}
.page-faq .faq-a li {
  margin-bottom: 6px;
}
.page-faq .faq-a a {
  color: var(--accent-primary);
  text-decoration: none;
  border-bottom: 1px dashed var(--grid-line);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.page-faq .faq-a a:hover {
  color: var(--accent-pink);
  border-color: var(--accent-pink);
}
.page-faq .faq-note {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-amber);
  opacity: 0.8;
}

/* 进度记忆开关演示 */
.page-faq .demo-switch {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 14px 0 4px;
  padding: 8px 14px;
  background: var(--bg-deep);
  border: 1px solid var(--grid-line);
  border-radius: 30px;
}
.page-faq .demo-switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.page-faq .switch-track {
  display: inline-block;
  width: 46px;
  height: 24px;
  border-radius: 12px;
  background: var(--grid-line);
  position: relative;
  cursor: pointer;
  transition: background 0.3s ease;
  flex-shrink: 0;
}
.page-faq .switch-thumb {
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--text-light);
  top: 3px;
  left: 3px;
  transition: transform 0.3s ease;
  box-shadow: 0 1px 4px rgba(0,0,0,0.4);
}
.page-faq .demo-switch input:checked + .switch-track {
  background: var(--accent-pink);
}
.page-faq .demo-switch input:checked + .switch-track .switch-thumb {
  transform: translateX(22px);
}
.page-faq .switch-status {
  font-size: 13px;
  color: var(--text-light);
  opacity: 0.85;
}

/* ===== 02 搜索技巧 ===== */
.page-faq .faq-tips {
  padding: 52px 0;
  background: linear-gradient(135deg, var(--bg-indigo) 0%, #141626 55%, var(--bg-deep) 100%);
}
.page-faq .tips-sheet {
  position: relative;
  background: rgba(22, 18, 31, 0.85);
  border: 1px solid var(--grid-line);
  border-left: 3px solid var(--accent-primary);
  border-radius: 8px;
  padding: 26px 18px;
  box-shadow: var(--faq-card-shadow);
  transform: rotate(var(--faq-tip-rotate));
}
.page-faq .tips-sheet > * {
  transform: rotate(calc(var(--faq-tip-rotate) * -1));
}
.page-faq .tips-intro {
  font-size: 15px;
  margin-bottom: 24px;
  color: var(--text-light);
  opacity: 0.9;
}
.page-faq .tips-layout {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.page-faq .tips-cards {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.page-faq .tip-card {
  background: var(--bg-deep);
  border: 1px solid var(--grid-line);
  border-radius: 6px;
  padding: 18px 16px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.page-faq .tip-card:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 0 20px rgba(164, 117, 255, 0.15);
  transform: translateX(4px);
}
.page-faq .tip-label {
  font-size: 12px;
  color: var(--accent-pink);
  letter-spacing: 1px;
  margin-bottom: 6px;
  font-family: var(--font-mono);
}
.page-faq .tip-keyword {
  font-size: 17px;
  font-weight: 600;
  color: var(--accent-amber);
  margin-bottom: 8px;
}
.page-faq .tip-desc {
  font-size: 14px;
  color: var(--text-light);
  opacity: 0.8;
  margin: 0;
}
.page-faq .tips-visual {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--grid-line);
}
.page-faq .tips-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ===== 03 浏览器兼容 ===== */
.page-faq .faq-browser {
  padding: 50px 0;
  background: var(--bg-deep);
}
.page-faq .browser-layout {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.page-faq .browser-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.page-faq .browser-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-panel);
  border: 1px solid var(--grid-line);
  border-radius: 6px;
  padding: 14px 16px;
  transition: border-color 0.2s ease;
}
.page-faq .browser-item:hover {
  border-color: var(--accent-amber);
}
.page-faq .browser-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 8px rgba(164, 117, 255, 0.5);
}
.page-faq .browser-name {
  flex: 1;
  font-size: 15px;
  font-weight: 500;
}
.page-faq .browser-status {
  font-size: 12px;
  color: var(--accent-amber);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.page-faq .browser-note {
  border: 1px solid var(--grid-line);
  border-radius: 8px;
  padding: 20px;
  font-size: 14px;
  line-height: 1.75;
}
.page-faq .browser-note p {
  margin: 0 0 10px;
}
.page-faq .browser-note p:last-child {
  margin-bottom: 0;
}
.page-faq .browser-note strong {
  color: var(--accent-amber);
}

/* ===== 04 安全提示 ===== */
.page-faq .faq-safety {
  position: relative;
  padding: 0 0 60px;
}
.page-faq .safety-img-wrap {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(110, 30, 60, 0.6);
}
.page-faq .safety-img-wrap img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  min-height: 80px;
  object-fit: cover;
}
.page-faq .safety-content {
  position: relative;
  z-index: 1;
  background: var(--bg-wine);
  border-radius: 12px;
  padding: 24px 20px;
  margin-top: -18px;
  border-left: 3px solid var(--accent-amber);
  box-shadow: var(--faq-card-shadow);
}
.page-faq .safety-index {
  color: var(--accent-amber);
  font-size: 13px;
  letter-spacing: 1px;
  margin-bottom: 6px;
  font-family: var(--font-mono);
}
.page-faq .safety-content h2 {
  font-family: var(--font-display);
  font-size: 24px;
  margin: 0 0 12px;
  color: var(--accent-amber);
}
.page-faq .safety-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.page-faq .safety-list li {
  padding-left: 20px;
  position: relative;
  font-size: 14px;
  line-height: 1.65;
}
.page-faq .safety-list li::before {
  content: "◆";
  position: absolute;
  left: 0;
  top: 2px;
  color: var(--accent-amber);
  font-size: 10px;
}
.page-faq .safety-more {
  margin: 16px 0 0;
  font-size: 13px;
  opacity: 0.85;
}
.page-faq .safety-more a {
  color: var(--accent-amber);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ===== 桌面端 ===== */
@media (min-width: 768px) {
  .page-faq .breadcrumb {
    padding-top: 120px;
  }
  .page-faq .faq-hero {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
    padding: 42px 0 56px;
  }
  .page-faq .hero-copy {
    max-width: 620px;
  }
  .page-faq .faq-hero h1 {
    font-size: 44px;
  }
  .page-faq .hero-desc {
    font-size: 16px;
  }
  .page-faq .hero-stats {
    min-width: 380px;
    gap: 14px;
  }
  .page-faq .stat-num {
    font-size: 30px;
  }

  .page-faq .faq-common {
    padding: 56px 0 64px;
  }
  .page-faq .section-title {
    font-size: 28px;
  }
  .page-faq .faq-item summary {
    padding: 22px 24px;
  }
  .page-faq .faq-q {
    font-size: 16px;
  }
  .page-faq .faq-a {
    padding: 0 24px 24px 76px;
    font-size: 15px;
  }

  .page-faq .tips-sheet {
    padding: 36px 32px;
  }
  .page-faq .tips-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 28px;
  }
  .page-faq .tips-cards {
    flex: 1;
    gap: 16px;
  }
  .page-faq .tips-visual {
    width: 420px;
    flex-shrink: 0;
  }
  .page-faq .tip-card {
    padding: 20px;
  }

  .page-faq .browser-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 28px;
  }
  .page-faq .browser-list {
    width: 360px;
    flex-shrink: 0;
  }
  .page-faq .browser-note {
    flex: 1;
    padding: 28px;
  }

  .page-faq .safety-content {
    padding: 30px 32px;
  }
  .page-faq .safety-list li {
    font-size: 15px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-hero {
    padding-bottom: 64px;
  }
  .page-faq .faq-hero h1 {
    font-size: 48px;
  }
  .page-faq .faq-tips {
    padding: 64px 0;
  }
  .page-faq .faq-browser {
    padding: 60px 0;
  }
  .page-faq .faq-safety {
    padding-bottom: 72px;
  }
}