/* ===== 页面专属 CSS：.page-faq ===== */
.page-faq {
  --faq-gap: 1rem;
  --faq-radius: 8px;
  --faq-border-width: 2px;
  --faq-max-width: 960px;
  display: flex;
  flex-direction: column;
  gap: 0;
  width: 100%;
  max-width: var(--faq-max-width);
  margin: 0 auto;
  padding: 1rem 1rem 3rem;
  color: var(--color-text, #EAEAEA);
  background: transparent;
  font-family: var(--font-body, 'Noto Sans SC', 'PT Mono', monospace);
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--color-muted, #9E9E9E);
  margin-bottom: 1.5rem;
  padding: 0 0.25rem;
  font-family: var(--font-body, 'Noto Sans SC', monospace);
}

.page-faq .breadcrumb a {
  color: var(--color-gold, #FFD700);
  text-decoration: none;
  transition: color var(--transition, 0.25s ease);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--color-red, #E53935);
  text-decoration: underline;
}

.page-faq .breadcrumb .sep {
  color: var(--color-muted, #9E9E9E);
  margin: 0 0.1rem;
}

/* ===== 框景首屏 ===== */
.page-faq .faq-hero {
  background: var(--color-card, #1A1A2E);
  border: var(--faq-border-width) solid var(--color-border, #FFD700);
  box-shadow: 0 8px 32px rgba(0,0,0,0.6), inset 0 0 0 1px rgba(255,215,0,0.08);
  border-radius: 12px;
  padding: 1.5rem 1.25rem;
  margin-bottom: 0;
  position: relative;
}

.page-faq .faq-hero-inner {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.page-faq .faq-hero-text {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.page-faq .faq-title {
  font-family: var(--font-heading, 'Montserrat', 'PingFang SC', sans-serif);
  font-size: 1.6rem;
  font-weight: 800;
  font-style: italic;
  color: var(--color-text, #EAEAEA);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  line-height: 1.2;
}

.page-faq .faq-title-icon {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  object-fit: contain;
  border-radius: 6px;
  background: rgba(255,215,0,0.08);
  padding: 4px;
  box-shadow: 0 0 0 1px rgba(255,215,0,0.25);
}

.page-faq .faq-hero-sub {
  font-size: 0.95rem;
  color: var(--color-muted, #9E9E9E);
  margin: 0;
  line-height: 1.5;
  padding-left: calc(60px + 0.75rem);
}

/* 搜索框 */
.page-faq .faq-search {
  position: relative;
  width: 100%;
}

.page-faq .faq-search-input {
  display: block;
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 3rem;
  background: var(--color-bg, #0D0D1A);
  border: 2px solid var(--color-muted, #9E9E9E);
  border-radius: 48px;
  color: var(--color-text, #EAEAEA);
  font-family: var(--font-body, 'Noto Sans SC', monospace);
  font-size: 0.95rem;
  transition: border-color var(--transition, 0.25s ease), box-shadow var(--transition, 0.25s ease);
  outline: none;
  box-sizing: border-box;
}

.page-faq .faq-search-input::placeholder {
  color: var(--color-muted, #9E9E9E);
  opacity: 0.7;
}

.page-faq .faq-search-input:focus {
  border-color: var(--color-gold, #FFD700);
  box-shadow: 0 0 0 3px rgba(255,215,0,0.15), 0 0 12px rgba(255,215,0,0.08);
}

.page-faq .faq-search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  color: var(--color-gold, #FFD700);
  pointer-events: none;
  line-height: 1;
}

/* ===== 金色分割线 ===== */
.page-faq .gold-divider {
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold, #FFD700), var(--color-red, #E53935), var(--color-gold, #FFD700));
  margin: 1.8rem 0;
  border: none;
  border-radius: 2px;
  opacity: 0.7;
  width: 100%;
}

.page-faq .gold-divider.angled {
  transform: skewX(-3deg);
  width: 105%;
  margin-left: -2.5%;
}

/* ===== 分区标题 ===== */
.page-faq .faq-section {
  margin-bottom: 0.5rem;
}

.page-faq .section-title {
  font-family: var(--font-heading, 'Montserrat', 'PingFang SC', sans-serif);
  font-size: 1.4rem;
  font-weight: 800;
  font-style: italic;
  color: var(--color-text, #EAEAEA);
  margin: 0 0 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.page-faq .section-title .mono-index {
  font-family: 'PT Mono', 'Courier New', monospace;
  font-size: 1.1rem;
  color: var(--color-gold, #FFD700);
  background: rgba(255,215,0,0.1);
  padding: 0.1rem 0.5rem;
  border-radius: 4px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-faq .section-desc {
  font-size: 0.9rem;
  color: var(--color-muted, #9E9E9E);
  margin: 0 0 1.2rem;
  padding-left: calc(1.1rem + 0.6rem + 0.6rem);
  line-height: 1.5;
}

/* ===== FAQ 列表 ===== */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* 每个问答项 */
.page-faq .faq-item {
  background: var(--color-card, #1A1A2E);
  border: var(--faq-border-width) solid rgba(255,215,0,0.15);
  border-radius: var(--faq-radius, 8px);
  overflow: hidden;
  transition: border-color var(--transition, 0.25s ease), box-shadow var(--transition, 0.25s ease);
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.page-faq .faq-item:hover {
  border-color: rgba(255,215,0,0.35);
}

.page-faq .faq-item[open] {
  border-color: var(--color-gold, #FFD700);
  box-shadow: 0 0 0 3px rgba(255,215,0,0.1), 0 6px 24px rgba(0,0,0,0.5);
}

/* 问题行 (summary) */
.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  font-family: var(--font-body, 'Noto Sans SC', monospace);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text, #EAEAEA);
  transition: background var(--transition, 0.25s ease);
  position: relative;
}

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

.page-faq .faq-question::after {
  content: "+";
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-gold, #FFD700);
  font-family: 'PT Mono', 'Courier New', monospace;
  line-height: 1;
  transition: transform var(--transition, 0.25s ease), content 0s;
}

.page-faq .faq-item[open] .faq-question::after {
  content: "−";
  transform: translateY(-50%) rotate(0deg);
}

.page-faq .faq-item[open] .faq-question {
  background: rgba(255,215,0,0.04);
  border-bottom: 1px solid rgba(255,215,0,0.15);
}

.page-faq .faq-question:hover {
  background: rgba(255,215,0,0.03);
}

.page-faq .faq-question:focus-visible {
  outline: 2px solid var(--color-gold, #FFD700);
  outline-offset: -2px;
  border-radius: var(--faq-radius, 8px) var(--faq-radius, 8px) 0 0;
}

.page-faq .faq-question .mono-index {
  font-family: 'PT Mono', 'Courier New', monospace;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-red, #E53935);
  background: rgba(229,57,53,0.1);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}

.page-faq .faq-question-text {
  flex: 1;
  line-height: 1.4;
  padding-right: 2rem;
}

/* 答案内容 */
.page-faq .faq-answer {
  padding: 1rem 1.25rem 1.25rem;
  font-size: 0.9rem;
  color: var(--color-text, #EAEAEA);
  line-height: 1.7;
  background: rgba(13,13,26,0.3);
}

.page-faq .faq-answer p {
  margin: 0 0 0.5rem;
}

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

.page-faq .faq-answer strong {
  color: var(--color-gold, #FFD700);
  font-weight: 600;
}

/* 带图片的答案布局 */
.page-faq .faq-answer-layout {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

.page-faq .faq-answer-text {
  flex: 1;
}

.page-faq .faq-step-img {
  flex-shrink: 0;
  width: 160px;
  height: 160px;
  object-fit: contain;
  border-radius: 6px;
  background: rgba(21,101,192,0.06);
  border: 1px solid rgba(255,215,0,0.12);
  padding: 4px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
}

/* ===== 底部链接 ===== */
.page-faq .faq-bottom-links {
  margin-top: 1rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 0 0.5rem;
}

.page-faq .faq-bottom-tip {
  font-size: 0.95rem;
  color: var(--color-muted, #9E9E9E);
  margin: 0;
  line-height: 1.5;
}

.page-faq .faq-bottom-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.page-faq .faq-bottom-nav .btn-ghost {
  display: inline-block;
  padding: 0.6rem 1.5rem;
  border: 2px solid var(--color-gold, #FFD700);
  border-radius: 48px;
  background: transparent;
  color: var(--color-gold, #FFD700);
  font-family: var(--font-body, 'Noto Sans SC', monospace);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition, 0.25s ease), color var(--transition, 0.25s ease), transform 0.15s ease;
  cursor: pointer;
}

.page-faq .faq-bottom-nav .btn-ghost:hover,
.page-faq .faq-bottom-nav .btn-ghost:focus-visible {
  background: var(--color-gold, #FFD700);
  color: var(--color-bg, #0D0D1A);
  transform: scale(1.02);
}

.page-faq .faq-bottom-nav .btn-primary {
  display: inline-block;
  padding: 0.6rem 1.5rem;
  border: 2px solid var(--color-red, #E53935);
  border-radius: 48px;
  background: var(--color-red, #E53935);
  color: #fff;
  font-family: var(--font-body, 'Noto Sans SC', monospace);
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  transition: background var(--transition, 0.25s ease), border-color var(--transition, 0.25s ease), transform 0.15s ease;
  cursor: pointer;
}

.page-faq .faq-bottom-nav .btn-primary:hover,
.page-faq .faq-bottom-nav .btn-primary:focus-visible {
  background: transparent;
  color: var(--color-red, #E53935);
  border-color: var(--color-gold, #FFD700);
  transform: scale(1.02);
}

.page-faq .faq-bottom-brand {
  font-size: 0.9rem;
  color: var(--color-muted, #9E9E9E);
  margin: 0.5rem 0 0;
  font-family: var(--font-heading, 'Montserrat', 'PingFang SC', sans-serif);
  letter-spacing: 0.04em;
}

.page-faq .faq-bottom-brand strong {
  color: var(--color-gold, #FFD700);
  font-weight: 700;
}

/* ===== 响应式：桌面端 ===== */
@media (min-width: 768px) {
  .page-faq {
    padding: 2rem 2rem 4rem;
    gap: 0;
  }

  .page-faq .breadcrumb {
    font-size: 0.85rem;
    margin-bottom: 2rem;
  }

  .page-faq .faq-hero {
    padding: 2.5rem 2.5rem;
    border-width: 3px;
    border-radius: 16px;
  }

  .page-faq .faq-hero-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
  }

  .page-faq .faq-hero-text {
    flex: 1 1 55%;
  }

  .page-faq .faq-title {
    font-size: 2rem;
  }

  .page-faq .faq-title-icon {
    width: 80px;
    height: 80px;
  }

  .page-faq .faq-hero-sub {
    font-size: 1rem;
    padding-left: calc(80px + 0.75rem);
  }

  .page-faq .faq-search {
    flex: 1 1 40%;
    max-width: 380px;
  }

  .page-faq .faq-search-input {
    padding: 1rem 1.25rem 1rem 3.2rem;
    font-size: 1rem;
  }

  .page-faq .faq-section {
    padding: 0 0.5rem;
  }

  .page-faq .section-title {
    font-size: 1.6rem;
  }

  .page-faq .section-title .mono-index {
    font-size: 1.2rem;
  }

  .page-faq .section-desc {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
  }

  .page-faq .faq-list {
    gap: 0.85rem;
  }

  .page-faq .faq-question {
    padding: 1.15rem 1.75rem;
    font-size: 1rem;
  }

  .page-faq .faq-question .mono-index {
    font-size: 0.9rem;
  }

  .page-faq .faq-answer {
    padding: 1.25rem 1.75rem 1.5rem;
    font-size: 0.95rem;
  }

  .page-faq .faq-answer-layout {
    flex-direction: row;
    align-items: center;
  }

  .page-faq .faq-step-img {
    width: 200px;
    height: 200px;
  }

  .page-faq .faq-bottom-links {
    margin-top: 2rem;
    gap: 1.25rem;
  }

  .page-faq .faq-bottom-nav {
    gap: 1rem;
  }

  .page-faq .faq-bottom-nav .btn-ghost,
  .page-faq .faq-bottom-nav .btn-primary {
    padding: 0.7rem 2rem;
    font-size: 0.9rem;
  }

  .page-faq .gold-divider {
    margin: 2.5rem 0;
  }

  .page-faq .gold-divider.angled {
    width: 108%;
    margin-left: -4%;
  }
}

@media (min-width: 1024px) {
  .page-faq {
    padding: 2.5rem 3rem 5rem;
  }

  .page-faq .faq-hero {
    padding: 3rem 3rem;
  }

  .page-faq .faq-title {
    font-size: 2.4rem;
  }

  .page-faq .faq-title-icon {
    width: 100px;
    height: 100px;
  }

  .page-faq .faq-hero-sub {
    padding-left: calc(100px + 0.75rem);
    font-size: 1.05rem;
  }

  .page-faq .faq-section {
    padding: 0 1rem;
  }

  .page-faq .faq-list {
    gap: 1rem;
  }

  .page-faq .faq-item {
    border-width: 2px;
  }

  .page-faq .faq-question {
    padding: 1.25rem 2rem;
    font-size: 1.05rem;
  }

  .page-faq .faq-answer {
    padding: 1.5rem 2rem 1.75rem;
  }
}

/* ===== 窄屏安全 ===== */
@media (max-width: 400px) {
  .page-faq {
    padding: 0.75rem 0.75rem 2rem;
  }

  .page-faq .faq-title {
    font-size: 1.25rem;
    flex-wrap: wrap;
  }

  .page-faq .faq-title-icon {
    width: 44px;
    height: 44px;
  }

  .page-faq .faq-hero-sub {
    padding-left: 0;
    font-size: 0.85rem;
  }

  .page-faq .faq-hero {
    padding: 1rem;
  }

  .page-faq .faq-search-input {
    padding: 0.7rem 0.8rem 0.7rem 2.5rem;
    font-size: 0.85rem;
  }

  .page-faq .faq-search-icon {
    left: 0.75rem;
    font-size: 1.1rem;
  }

  .page-faq .faq-question {
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
    gap: 0.5rem;
  }

  .page-faq .faq-answer {
    padding: 0.75rem 1rem 1rem;
    font-size: 0.85rem;
  }

  .page-faq .faq-step-img {
    width: 120px;
    height: 120px;
  }

  .page-faq .faq-bottom-nav {
    flex-direction: column;
    align-items: center;
  }

  .page-faq .faq-bottom-nav .btn-ghost,
  .page-faq .faq-bottom-nav .btn-primary {
    width: 100%;
    max-width: 280px;
    text-align: center;
  }
}