/* ===== 帮助中心页专属样式 ===== */
.page-faq {
  --faq-deep: #0D1117;
  --faq-grid-line: rgba(15, 111, 255, 0.05);
  position: relative;
}

/* 面包屑 */
.page-faq .breadcrumb {
  padding: 1.5rem 0 0;
}

/* Hero */
.page-faq .faq-hero {
  position: relative;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  background:
    radial-gradient(70% 60% at 88% 12%, rgba(15, 111, 255, 0.16), transparent 70%),
    linear-gradient(135deg, transparent 70%, rgba(255, 122, 0, 0.07) 100%),
    transparent;
}

.page-faq .faq-hero::after {
  content: "ABG";
  position: absolute;
  right: -0.04em;
  top: 0.6rem;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(4rem, 12vw, 9rem);
  line-height: 1;
  color: rgba(15, 111, 255, 0.07);
  letter-spacing: -0.05em;
  pointer-events: none;
  user-select: none;
}

.page-faq .faq-hero .eyebrow,
.page-faq .faq-title,
.page-faq .faq-lead {
  position: relative;
  z-index: 1;
}

.page-faq .faq-title {
  font-family: var(--font-headline);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0.75rem 0 1rem;
  max-width: 14em;
}

.page-faq .faq-lead {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.8;
  color: var(--text-dim);
  max-width: 44em;
  margin: 0;
}

/* 章节头部 */
.page-faq .section-head {
  display: grid;
  gap: 0.6rem;
}

.page-faq .section-intro {
  max-width: 38em;
  color: var(--text-dim);
  line-height: 1.7;
}

/* ===== 01 访问通道 ===== */
.page-faq .access-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

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

.page-faq .access-card {
  position: relative;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: linear-gradient(160deg, var(--bg-panel), rgba(18, 22, 29, 0.6));
  overflow: hidden;
}

.page-faq .access-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 4px;
  background: linear-gradient(180deg, var(--blue), transparent);
}

.page-faq .access-card-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  padding: 0 0.45rem;
  border: 1px solid var(--blue);
  border-radius: 999px;
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: 0.8125rem;
  color: var(--blue);
  margin-bottom: 0.85rem;
}

.page-faq .access-card-title {
  font-family: var(--font-headline);
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
}

.page-faq .access-card p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-dim);
  margin: 0 0 1rem;
}

.page-faq .access-card .btn {
  margin-top: 0.25rem;
}

.page-faq .access-visual {
  display: flex;
  align-items: center;
}

.page-faq .access-img {
  width: 100%;
  aspect-ratio: 5 / 3;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

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

/* ===== 02 分类数量 ===== */
.page-faq .faq-categories {
  background-color: var(--bg-panel);
  background-image:
    linear-gradient(var(--faq-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid-line) 1px, transparent 1px);
  background-size: 32px 32px;
}

.page-faq .category-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 2rem 0;
}

.page-faq .category-stat {
  text-align: center;
  padding: 1.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: linear-gradient(160deg, var(--faq-deep), rgba(13, 17, 23, 0.6));
}

.page-faq .category-stat-num {
  display: block;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  line-height: 1;
  color: var(--blue);
  margin-bottom: 0.5rem;
}

.page-faq .category-stat:nth-child(2) .category-stat-num {
  color: var(--gold);
}

.page-faq .category-stat:nth-child(3) .category-stat-num {
  color: var(--orange);
}

.page-faq .category-stat-label {
  font-family: var(--font-headline);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

.page-faq .category-tabs {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--faq-deep);
  overflow: hidden;
}

.page-faq .tab-list {
  display: flex;
  overflow-x: auto;
  background: rgba(10, 12, 16, 0.55);
  scrollbar-width: none;
}

.page-faq .tab-list::-webkit-scrollbar {
  display: none;
}

.page-faq .tab-btn {
  appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 3px solid transparent;
  color: var(--text-dim);
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 0.9375rem;
  padding: 1rem 1.25rem;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-faq .tab-btn:hover {
  color: var(--text);
  background-color: rgba(255, 255, 255, 0.03);
}

.page-faq .tab-btn:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}

.page-faq .tab-btn[aria-selected="true"] {
  color: var(--text);
  border-bottom-color: var(--orange);
  background-color: rgba(255, 122, 0, 0.08);
}

.page-faq .tab-panel {
  display: block;
  padding: 1.5rem;
}

.page-faq .category-chip-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0 0 1rem;
  padding: 0;
}

.page-faq .category-chip-list .tag {
  font-family: var(--font-headline);
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
}

.page-faq .category-panel-text {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-dim);
  margin: 0;
  max-width: 42em;
}

/* ===== 03 账户设置 ===== */
.page-faq .faq-setup {
  position: relative;
}

.page-faq .faq-setup::before {
  content: "";
  display: block;
  height: 3px;
  margin-bottom: 2.5rem;
  background: linear-gradient(90deg, var(--orange) 0 38%, var(--blue) 38% 100%);
}

.page-faq .setup-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.page-faq .setup-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .setup-step {
  display: flex;
  gap: 1.25rem;
  padding: 1.25rem 0;
  border-bottom: 1px dashed var(--border);
}

.page-faq .setup-step:first-child {
  padding-top: 0;
}

.page-faq .setup-step:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .setup-step-num {
  font-family: var(--font-headline);
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1;
  color: var(--orange);
  min-width: 3.5rem;
  margin-top: 0.1rem;
}

.page-faq .setup-step-body h3 {
  font-family: var(--font-headline);
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
}

.page-faq .setup-step-body p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-dim);
  margin: 0;
  max-width: 30em;
}

.page-faq .setup-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  padding: 2rem 1.5rem;
  background: rgba(201, 162, 39, 0.05);
  border: 1px solid rgba(201, 162, 39, 0.28);
  border-radius: 18px;
  text-align: center;
}

.page-faq .qr-frame {
  display: inline-block;
  border: 2px solid var(--gold);
  border-radius: 12px;
  padding: 0.75rem;
  background: #ffffff;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.4);
  max-width: 260px;
  width: 100%;
}

.page-faq .qr-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
}

.page-faq .qr-caption {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin: 0;
}

/* ===== 04 常见问题 ===== */
.page-faq .faq-more {
  background-color: var(--bg-panel);
}

.page-faq .accordion-list {
  display: grid;
  gap: 0.85rem;
  margin-top: 2rem;
}

.page-faq .accordion-item {
  background: linear-gradient(160deg, var(--faq-deep), rgba(13, 17, 23, 0.7));
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.page-faq .accordion-item[open] {
  border-color: rgba(15, 111, 255, 0.55);
}

.page-faq .accordion-question {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  font-family: var(--font-headline);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
  transition: background-color 0.2s ease, color 0.2s ease;
}

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

.page-faq .accordion-question:hover {
  background-color: rgba(15, 111, 255, 0.06);
  color: var(--blue);
}

.page-faq .accordion-index {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 0.8125rem;
  color: var(--gold);
  margin-right: 0.25rem;
}

.page-faq .accordion-q-text {
  flex: 1 1 auto;
}

.page-faq .accordion-question::after {
  content: "+";
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--orange);
  transition: transform 0.2s ease;
}

.page-faq .accordion-item[open] .accordion-question::after {
  content: "−";
}

.page-faq .accordion-answer {
  padding: 0 1.5rem 1.5rem;
  margin-top: -0.25rem;
}

.page-faq .accordion-answer p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-dim);
  margin: 0 0 0.75rem;
}

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

.page-faq .accordion-answer a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ===== 响应式布局 ===== */
@media (min-width: 720px) {
  .page-faq .category-stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 960px) {
  .page-faq .access-grid {
    grid-template-columns: 1.35fr 1fr;
    align-items: stretch;
  }

  .page-faq .access-cards {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .access-card:last-child {
    grid-column: 1 / -1;
  }

  .page-faq .setup-layout {
    grid-template-columns: 1.5fr 1fr;
    align-items: start;
  }

  .page-faq .setup-visual {
    position: sticky;
    top: 2rem;
  }
}