/* ===== 支持中心 · 页面专属样式 ===== */
.page-faq {
  --faq-slash: rgba(198, 255, 61, 0.14);
  --faq-slash-soft: rgba(255, 90, 54, 0.12);
}

/* 面包屑 */
.page-faq .faq-breadcrumbs {
  padding: 0.875rem 0 0.125rem;
  border-bottom: 1px solid rgba(123, 138, 155, 0.18);
  margin-bottom: 1.5rem;
}
.page-faq .faq-breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.875rem;
  font-family: var(--font-mono);
  color: var(--rock-gray);
}
.page-faq .faq-breadcrumbs__list a {
  color: var(--cold-gray);
  text-decoration-color: transparent;
  transition: color 160ms ease, text-decoration-color 160ms ease;
}
.page-faq .faq-breadcrumbs__list a:hover {
  color: var(--neon-green);
  text-decoration-color: currentColor;
}
.page-faq .faq-breadcrumbs__list li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--cold-gray);
}
.page-faq .faq-breadcrumbs__list [aria-current="page"] {
  color: var(--neon-green);
}

/* 英雄区 */
.page-faq .faq-hero {
  position: relative;
  padding: 1rem 0 2.5rem;
  isolation: isolate;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(120deg, var(--faq-slash) 0 38%, transparent 38%),
    linear-gradient(60deg, transparent 0 72%, var(--faq-slash-soft) 72% 73%, transparent 73%);
  pointer-events: none;
}
.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2rem;
  align-items: center;
}
.page-faq .faq-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 4.25rem);
  line-height: 1.06;
  color: var(--white);
  margin: 0.75rem 0 1rem;
}
.page-faq .faq-hero__copy .lead {
  max-width: 34em;
  margin-bottom: 1.5rem;
  color: rgba(248, 250, 252, 0.78);
}
.page-faq .faq-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  max-width: 420px;
}
.page-faq .faq-hero__fact .data-value {
  font-size: 1.75rem;
  color: var(--neon-green);
}
.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}
.page-faq .faq-hero__visual {
  position: relative;
  filter: drop-shadow(0 18px 28px rgba(0, 0, 0, 0.35));
}
.page-faq .faq-hero__frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), 0 100%);
}
.page-faq .faq-hero__frame img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
}
.page-faq .faq-hero__stamp {
  position: absolute;
  right: 1rem;
  bottom: 2.75rem;
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  color: var(--neon-green);
  opacity: 0.92;
  transform: rotate(-6deg);
  line-height: 1;
  pointer-events: none;
  text-shadow: 0 0 18px rgba(198, 255, 61, 0.35);
}

/* 主体布局 */
.page-faq .faq-body {
  padding: 3rem 0 5rem;
}
.page-faq .faq-body__intro {
  margin-top: 0.5rem;
  max-width: 56rem;
  color: var(--rock-gray);
}
.page-faq .faq-layout {
  display: grid;
  gap: 2rem;
  margin-top: 2.25rem;
}
.page-faq .faq-main {
  min-width: 0;
}

/* 标签页 */
.page-faq .faq-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.875rem;
  align-items: end;
  scroll-margin-top: calc(var(--header-h) + 1rem);
}
.page-faq .faq-tab__radio {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  margin: 0;
  pointer-events: none;
}
.page-faq .faq-tab__btn {
  display: block;
  text-align: center;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
  padding: 0.625rem 0.875rem;
  color: var(--rock-gray);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
  user-select: none;
}
.page-faq .faq-tab__btn:hover {
  color: var(--white);
  border-color: rgba(198, 255, 61, 0.3);
}
.page-faq .faq-tab__radio:checked + .faq-tab__btn {
  color: var(--neon-green);
  border-color: var(--neon-green);
  background: rgba(198, 255, 61, 0.08);
  box-shadow: inset 0 -2px 0 var(--neon-green);
}
.page-faq .faq-tab__radio:focus-visible + .faq-tab__btn {
  outline: 2px solid var(--neon-green);
  outline-offset: 3px;
}
.page-faq .faq-tabs__tip {
  grid-column: 1 / -1;
  margin: 0;
  padding: 0.375rem 0 0;
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  color: var(--rock-gray);
}
.page-faq .faq-tab__panel {
  grid-column: 1 / -1;
  display: none;
  margin-top: 0.5rem;
  padding: 1.25rem 1.25rem 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}
.page-faq #faq-tab-access:checked ~ .faq-tab__panel--access,
.page-faq #faq-tab-progress:checked ~ .faq-tab__panel--progress,
.page-faq #faq-tab-data:checked ~ .faq-tab__panel--data,
.page-faq #faq-tab-privacy:checked ~ .faq-tab__panel--privacy {
  display: block;
}

/* 面板头部 */
.page-faq .faq-panel__head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(123, 138, 155, 0.2);
}
.page-faq .faq-panel__index {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--orange-red);
  line-height: 1.2;
}
.page-faq .faq-panel__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  margin: 0;
}
.page-faq .faq-panel__desc {
  margin: 0.25rem 0 0;
  color: var(--rock-gray);
  font-size: 0.875rem;
}

/* 问题列表 */
.page-faq .faq-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

/* 折叠项 */
.page-faq .faq-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 280ms ease, background 280ms ease;
}
.page-faq .faq-item[open] {
  border-color: rgba(198, 255, 61, 0.38);
  background: rgba(11, 30, 58, 0.68);
}
.page-faq .faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 1rem 1.125rem;
  cursor: pointer;
  font-size: 1rem;
  font-family: var(--font-body);
  color: var(--white);
  transition: color 160ms ease;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary::marker {
  content: none;
}
.page-faq .faq-item[open] summary {
  color: var(--neon-green);
}
.page-faq .faq-item__no {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--orange-red);
  letter-spacing: 0.08em;
  flex: 0 0 auto;
}
.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
  overflow-wrap: break-word;
  line-height: 1.4;
}
.page-faq .faq-item__icon {
  flex: 0 0 auto;
  position: relative;
  width: 0.875rem;
  height: 0.875rem;
}
.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--neon-green);
  transition: transform 280ms ease, opacity 160ms ease;
}
.page-faq .faq-item__icon::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  transform: translateY(-50%);
}
.page-faq .faq-item__icon::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
}
.page-faq .faq-item[open] .faq-item__icon::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}
.page-faq .faq-item__body {
  padding: 0 1.125rem 1.125rem;
  color: rgba(248, 250, 252, 0.76);
  line-height: 1.7;
  max-width: 60ch;
}
.page-faq .faq-item__body p {
  margin: 0;
}
.page-faq .faq-item__body a {
  color: var(--neon-green);
}
.page-faq .faq-panel__foot {
  margin-top: 1rem;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  color: var(--rock-gray);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
}
.page-faq .faq-panel__foot a {
  color: var(--neon-green);
  font-weight: 600;
}

/* 侧边栏 */
.page-faq .faq-side {
  display: grid;
  gap: 1.25rem;
  align-content: start;
  min-width: 0;
}
.page-faq .faq-side__card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
}
.page-faq .faq-side__card--visual {
  padding: 0;
  overflow: hidden;
}
.page-faq .faq-side__visual {
  position: relative;
}
.page-faq .faq-side__visual img {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: cover;
}
.page-faq .faq-side__text {
  padding: 1.25rem;
}
.page-faq .faq-side__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0.5rem 0;
  color: var(--white);
}
.page-faq .faq-side__desc {
  color: var(--rock-gray);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: 1rem;
}
.page-faq .faq-side__status {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--orange-red);
  letter-spacing: 0.06em;
}
.page-faq .faq-side__links {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}
.page-faq .faq-side__links a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--cold-gray);
  text-decoration: none;
  transition: color 160ms ease, transform 280ms ease;
}
.page-faq .faq-side__links a::before {
  content: "→";
  color: var(--neon-green);
}
.page-faq .faq-side__links a:hover {
  color: var(--neon-green);
  transform: translateX(2px);
}

/* 桌面端布局 */
@media (min-width: 900px) {
  .page-faq .faq-tabs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.875rem;
  }
  .page-faq .faq-tab__panel {
    margin-top: 0.75rem;
  }
}

@media (min-width: 992px) {
  .page-faq .faq-hero {
    padding: 2rem 0 3.5rem;
  }
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 3rem;
  }
  .page-faq .faq-hero__visual {
    max-width: 540px;
    justify-self: center;
  }
  .page-faq .faq-hero__frame img {
    height: 400px;
  }
  .page-faq .faq-body {
    padding: 4rem 0 6rem;
  }
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 2.5rem;
    align-items: start;
  }
  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--header-h) + 1rem);
  }
  .page-faq .faq-side__visual img {
    height: 400px;
  }
}