.page-faq {
  --faq-sidebar: 248px;
  scroll-behavior: smooth;
  background:
    radial-gradient(1100px 520px at 90% -5%, rgba(0, 229, 255, 0.07), transparent 60%),
    radial-gradient(800px 420px at -5% 28%, rgba(200, 255, 0, 0.04), transparent 55%),
    var(--color-space);
  color: var(--color-text);
}

/* ---------- 首屏引导 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--header-height) + 36px) 0 44px;
  border-bottom: 1px solid var(--color-divider);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: 36px;
  width: 440px;
  height: 220px;
  background: repeating-linear-gradient(115deg, transparent 0 14px, rgba(0, 229, 255, 0.10) 14px 15px);
  transform: skewX(-10deg);
  opacity: 0.55;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px 40px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.page-faq .faq-hero__info {
  max-width: 780px;
}

.page-faq .faq-hero__title {
  margin: 16px 0 12px;
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 5vw, 3.5rem);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__title-guide {
  display: block;
  color: var(--color-neon);
  font-size: 0.68em;
  letter-spacing: 0.04em;
  margin-top: 4px;
  transform: skewX(-6deg);
}

.page-faq .faq-hero__lead {
  margin: 10px 0 0;
  color: var(--color-muted);
  font-size: 1rem;
  line-height: 1.85;
}

.page-faq .faq-hero__badge {
  flex: 0 0 auto;
  display: inline-flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  padding: 14px 18px;
  text-decoration: none;
  background: rgba(255, 107, 0, 0.10);
  border: 1px solid rgba(255, 107, 0, 0.30);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.page-faq .faq-hero__badge:hover {
  background: rgba(255, 107, 0, 0.18);
  border-color: rgba(255, 107, 0, 0.55);
}

.page-faq .faq-hero__badge-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text);
}

/* ---------- 目录与主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding: 40px 0 56px;
}

.page-faq .faq-toc {
  background: linear-gradient(145deg, rgba(16, 42, 76, 0.72), rgba(16, 42, 76, 0.40));
  border: 1px solid var(--color-divider);
  border-left: 3px solid var(--color-orange);
  padding: 22px 24px;
}

.page-faq .faq-toc__label {
  margin: 0 0 14px;
  color: var(--color-muted);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .faq-toc__item {
  margin: 0;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  color: #9FB3D1;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.92rem;
  border-bottom: 1px solid rgba(30, 58, 95, 0.45);
  transition: color 0.25s ease, padding-left 0.25s ease;
}

.page-faq .faq-toc__item:last-child .faq-toc__link {
  border-bottom: none;
}

.page-faq .faq-toc__link:hover {
  color: var(--color-neon);
  padding-left: 6px;
}

.page-faq .faq-toc__index {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 0.68rem;
  color: var(--color-orange);
  letter-spacing: 0.05em;
  transform: skewX(-6deg);
}

.page-faq .faq-toc__note {
  margin-top: 18px;
}

.page-faq .faq-content {
  min-width: 0;
}

.page-faq .faq-content .section {
  scroll-margin-top: calc(var(--header-height) + 24px);
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-sidebar) minmax(0, 1fr);
    gap: 52px;
    padding-top: 56px;
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-height) + 24px);
  }
}

/* ---------- 常见问题手风琴 ---------- */
.page-faq .faq-list {
  margin-top: 24px;
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  background: linear-gradient(120deg, rgba(16, 42, 76, 0.65), rgba(16, 42, 76, 0.35));
  border: 1px solid var(--color-divider);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.page-faq .faq-item:hover {
  border-color: rgba(159, 179, 209, 0.45);
}

.page-faq .faq-item[open] {
  border-color: rgba(200, 255, 0, 0.35);
}

.page-faq .faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 46px 18px 18px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text);
  position: relative;
  user-select: none;
  transition: color 0.25s ease;
}

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

.page-faq .faq-item summary::before {
  content: "Q";
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--color-neon);
  color: var(--color-space);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 0.82rem;
  transform: skewX(-6deg);
  flex: 0 0 auto;
}

.page-faq .faq-item[open] summary::before,
.page-faq .faq-item summary:hover {
  color: var(--color-neon);
}

.page-faq .faq-item[open] summary::before {
  background: var(--color-orange);
  color: #FFFFFF;
}

.page-faq .faq-item summary::after {
  content: "";
  position: absolute;
  right: 20px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--color-neon);
  border-bottom: 2px solid var(--color-neon);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.3s ease;
}

.page-faq .faq-item[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.page-faq .faq-item__body {
  padding: 0 18px 18px;
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

.page-faq .faq-item__body p {
  margin: 0 0 8px;
}

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

.page-faq .faq-item__body a {
  color: var(--color-neon);
  text-decoration: underline;
  text-underline-offset: 2px;
}

@media (min-width: 640px) {
  .page-faq .faq-item__body {
    padding: 0 20px 20px 58px;
  }
}

/* ---------- 双版本对照 ---------- */
.page-faq .faq-dual-visual {
  margin-top: 28px;
}

.page-faq .faq-dual-grid {
  margin-top: 24px;
  display: grid;
  gap: 18px;
}

@media (min-width: 768px) {
  .page-faq .faq-dual-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.page-faq .faq-dual-card {
  background: rgba(16, 42, 76, 0.60);
  border: 1px solid var(--color-divider);
  border-top: 3px solid var(--color-neon);
  padding: 24px;
}

.page-faq .faq-dual-card + .faq-dual-card {
  border-top-color: var(--color-orange);
}

.page-faq .faq-dual-card__label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.10em;
  color: var(--color-muted);
  text-transform: uppercase;
  margin-bottom: 10px;
  transform: skewX(-6deg);
}

.page-faq .faq-dual-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.20rem;
  color: var(--color-text);
}

.page-faq .faq-dual-card p {
  color: var(--color-muted);
  line-height: 1.70;
  margin: 0 0 8px;
  font-size: 0.93rem;
}

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

.page-faq .faq-dual-note {
  margin: 24px 0 0;
  padding: 16px 20px;
  background: rgba(200, 255, 0, 0.08);
  border-left: 3px solid var(--color-neon);
  color: var(--color-muted);
  line-height: 1.70;
  font-size: 0.93rem;
}

/* ---------- 导航与访问 ---------- */
.page-faq .faq-nav-list {
  margin-top: 28px;
  display: grid;
  gap: 16px;
}

@media (min-width: 768px) {
  .page-faq .faq-nav-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-nav-item {
  position: relative;
  background: rgba(16, 42, 76, 0.50);
  border: 1px solid var(--color-divider);
  padding: 24px 24px 24px 64px;
  transition: border-color 0.30s ease, transform 0.30s ease;
}

.page-faq .faq-nav-item:hover {
  border-color: rgba(255, 107, 0, 0.50);
  transform: translateY(-3px);
}

.page-faq .faq-nav-item__num {
  position: absolute;
  left: 20px;
  top: 22px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.60rem;
  color: rgba(200, 255, 0, 0.35);
  transform: skewX(-6deg);
}

.page-faq .faq-nav-item h3 {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-text);
}

.page-faq .faq-nav-item p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.92rem;
  line-height: 1.70;
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support-grid {
  display: grid;
  gap: 28px;
  margin-top: 28px;
}

@media (min-width: 768px) {
  .page-faq .faq-support-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
  }
}

.page-faq .faq-support-card {
  background: linear-gradient(135deg, rgba(255, 107, 0, 0.10), rgba(16, 42, 76, 0.55) 40%, rgba(16, 42, 76, 0.55));
  border: 1px solid var(--color-divider);
  border-left: 4px solid var(--color-orange);
  padding: 28px 30px;
  transition: border-color 0.30s ease, transform 0.30s ease, box-shadow 0.30s ease;
}

.page-faq .faq-support-card:hover {
  border-color: rgba(255, 107, 0, 0.55);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(8, 18, 36, 0.55);
}

.page-faq .faq-support-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--color-text);
}

.page-faq .faq-support-card > p {
  color: var(--color-muted);
  line-height: 1.75;
  margin: 0 0 18px;
}

.page-faq .faq-support-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-support-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--color-divider);
  font-size: 0.95rem;
}

.page-faq .faq-support-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .faq-support-list__key {
  flex: 0 0 72px;
  color: var(--color-muted);
  font-size: 0.85rem;
}

.page-faq .faq-support-list__value {
  font-weight: 500;
  word-break: break-word;
}

.page-faq .faq-support-card__note {
  margin: 0;
  font-size: 0.88rem;
}

.page-faq .faq-support-card__note a {
  color: var(--color-neon);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-faq .faq-support-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-faq .faq-support-visual .visual-frame {
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
}

/* ---------- 图片与框架适配 ---------- */
.page-faq .visual-frame {
  max-width: 100%;
}

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