/* ===== BSPORT 帮助中心 FAQ 页面专属样式 ===== */
.page-faq {
  --faq-nav-width: 260px;
  --faq-radius: 14px;
  --faq-line: 1px solid var(--color-border);
}

.page-faq p {
  overflow-wrap: break-word;
}

.page-faq [id] {
  scroll-margin-top: 120px;
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 44px 0 56px;
  background:
    radial-gradient(55% 100% at 88% 8%, rgba(0, 179, 255, 0.18) 0%, transparent 62%),
    radial-gradient(45% 90% at 6% 100%, rgba(0, 255, 133, 0.1) 0%, transparent 58%),
    linear-gradient(155deg, #121A29 0%, #0A0E17 64%);
  border-bottom: 1px solid var(--color-border);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(38, 50, 65, 0.38) 1px, transparent 1px),
    linear-gradient(90deg, rgba(38, 50, 65, 0.38) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(80% 80% at 72% 20%, #000 0%, transparent 72%);
  mask-image: radial-gradient(80% 80% at 72% 20%, #000 0%, transparent 72%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 40px;
  align-items: center;
}

.page-faq .faq-breadcrumb {
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 18px;
  letter-spacing: 0.04em;
}

.page-faq .faq-breadcrumb a {
  color: var(--color-accent-2);
  text-decoration: none;
  transition: color var(--transition);
}

.page-faq .faq-breadcrumb a:hover,
.page-faq .faq-breadcrumb a:focus-visible {
  color: var(--color-accent);
}

.page-faq .faq-breadcrumb span[aria-hidden="true"] {
  margin: 0 12px;
  color: var(--color-border);
}

.page-faq .faq-hero__eyebrow {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 20px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-title);
  font-size: clamp(30px, 6vw, 56px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--color-text);
  max-width: 11em;
}

.page-faq .faq-hero__slash {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-weight: 500;
  padding: 0 4px;
}

.page-faq .faq-hero__lead {
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text-muted);
  max-width: 58ch;
  margin: 0 0 26px;
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-faq .faq-hero__quick-label {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-text-muted);
  margin-right: 4px;
}

.page-faq .faq-hero__quick .tag {
  text-decoration: none;
}

.page-faq .faq-hero__quick .tag:hover,
.page-faq .faq-hero__quick .tag:focus-visible {
  outline: none;
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.page-faq .faq-hero__aside {
  display: grid;
  gap: 20px;
}

.page-faq .faq-hero__viz {
  border: 1px solid var(--color-border);
  border-radius: var(--faq-radius);
  background: rgba(10, 14, 23, 0.7);
  padding: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
}

.page-faq .faq-hero__field {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__stat {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-accent);
  border-radius: 10px;
  padding: 16px 14px;
}

.page-faq .faq-hero__stat:nth-child(2) {
  border-top-color: var(--color-accent-2);
}

.page-faq .faq-hero__stat dt {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.page-faq .faq-hero__stat dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.4vw, 30px);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

/* ---------- 通用 section ---------- */
.page-faq .faq-section {
  padding: 56px 0;
  border-top: 1px solid var(--color-border);
}

.page-faq .faq-popular {
  border-top: none;
  padding-top: 64px;
}

.page-faq .faq-categories {
  background: var(--color-bg-alt);
}

.page-faq .faq-guide {
  background:
    radial-gradient(50% 70% at 90% 0%, rgba(0, 255, 133, 0.06) 0%, transparent 60%),
    var(--color-bg);
}

.page-faq .faq-section__heading {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 14px 24px;
  margin-bottom: 32px;
}

.page-faq .faq-section__meta {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-text-muted);
  border-left: 2px solid var(--color-accent);
  padding-left: 12px;
  margin-bottom: 6px;
}

/* ---------- 热门问题 ---------- */
.page-faq .faq-popular__grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.page-faq .faq-popular__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-accent);
  border-radius: var(--faq-radius);
  text-decoration: none;
  transition: transform 0.3s var(--ease-out), border-color 0.3s, box-shadow 0.3s;
}

.page-faq .faq-popular__card:nth-child(2) {
  border-top-color: var(--color-accent-2);
}

.page-faq .faq-popular__card:hover,
.page-faq .faq-popular__card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(0, 255, 133, 0.5);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(0, 255, 133, 0.12);
  outline: none;
}

.page-faq .faq-popular__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent);
  letter-spacing: 0.08em;
}

.page-faq .faq-popular__card:nth-child(2) .faq-popular__num {
  color: var(--color-accent-2);
}

.page-faq .faq-popular__card h3 {
  margin: 0;
  font-family: var(--font-title);
  font-size: 18px;
  line-height: 1.4;
  font-weight: 600;
  color: var(--color-text);
}

.page-faq .faq-popular__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.58;
  color: var(--color-text-muted);
}

.page-faq .faq-popular__more {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent-2);
  transition: letter-spacing 0.3s var(--ease-out);
}

.page-faq .faq-popular__card:hover .faq-popular__more {
  letter-spacing: 0.06em;
}

/* ---------- 分类问答布局 ---------- */
.page-faq .faq-categories__layout {
  display: grid;
  gap: 36px;
  grid-template-columns: 1fr;
}

.page-faq .faq-nav__list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-border);
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  transition: border-color 0.3s, color 0.3s, background-color 0.3s, transform 0.3s var(--ease-out);
}

.page-faq .faq-nav__link:hover,
.page-faq .faq-nav__link:focus-visible {
  border-left-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(0, 255, 133, 0.06);
  transform: translateX(2px);
  outline: none;
}

.page-faq .faq-nav__code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-muted);
  transition: color 0.3s;
}

.page-faq .faq-nav__link:hover .faq-nav__code {
  color: var(--color-accent);
}

.page-faq .faq-nav__figure {
  margin: 26px 0 0;
}

.page-faq .faq-nav__figure img {
  display: block;
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: var(--faq-radius);
  border: 1px solid var(--color-border);
}

.page-faq .faq-nav__figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
}

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

/* ---------- 搜索框 ---------- */
.page-faq .faq-search {
  position: relative;
  margin-bottom: 14px;
}

.page-faq .faq-search__icon {
  position: absolute;
  left: 16px;
  top: 50%;
  width: 18px;
  height: 18px;
  transform: translateY(-50%);
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-search__icon::after {
  content: "";
  position: absolute;
  right: -7px;
  bottom: -4px;
  width: 8px;
  height: 2px;
  background: var(--color-accent);
  transform: rotate(45deg);
  border-radius: 2px;
}

.page-faq .faq-search__input {
  width: 100%;
  box-sizing: border-box;
  padding: 14px 18px 14px 50px;
  font: 500 15px/1.5 var(--font-body);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.page-faq .faq-search__input::placeholder {
  color: var(--color-text-muted);
}

.page-faq .faq-search__input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 255, 133, 0.15);
}

.page-faq .faq-search__suggest {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 36px;
  font-size: 13px;
  color: var(--color-text-muted);
}

.page-faq .faq-search__suggest .tag {
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 13px;
  text-decoration: none;
}

.page-faq .faq-search__suggest .tag:hover,
.page-faq .faq-search__suggest .tag:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-accent);
  outline: none;
}

/* ---------- FAQ 分类 ---------- */
.page-faq .faq-category {
  margin-bottom: 44px;
  scroll-margin-top: 120px;
}

.page-faq .faq-category__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 8px;
  padding-bottom: 12px;
  font-family: var(--font-title);
  font-size: 22px;
  font-weight: 600;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.page-faq .faq-category__title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.page-faq .faq-category__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  height: 30px;
  padding: 0 6px;
  background: rgba(0, 255, 133, 0.1);
  border: 1px solid rgba(0, 255, 133, 0.28);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--color-border);
}

.page-faq .faq-item details > summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  padding: 18px 4px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-title);
  color: var(--color-text);
  border-left: 2px solid transparent;
  transition: color 0.3s, border-color 0.3s, padding-left 0.3s var(--ease-out);
}

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

.page-faq .faq-item details > summary::after {
  content: "+";
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 400;
  line-height: 1;
  color: var(--color-accent);
  transition: transform 0.35s var(--ease-out), color 0.3s;
}

.page-faq .faq-item details:hover > summary {
  border-left-color: var(--color-accent);
  padding-left: 12px;
}

.page-faq .faq-item details[open] > summary {
  border-left-color: var(--color-accent);
  padding-left: 12px;
  color: var(--color-accent);
}

.page-faq .faq-item details[open] > summary::after {
  transform: rotate(45deg);
  color: var(--color-accent-2);
}

.page-faq .faq-item__answer {
  padding: 0 22px 20px 16px;
  border-left: 2px solid rgba(0, 255, 133, 0.2);
  margin: 0 2px 0 2px;
}

.page-faq .faq-item__answer p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text-muted);
  max-width: 70ch;
}

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

.page-faq .faq-item__answer a {
  color: var(--color-accent-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__answer a:hover,
.page-faq .faq-item__answer a:focus-visible {
  color: var(--color-accent);
  outline: none;
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support__grid {
  display: grid;
  gap: 32px;
  align-items: center;
}

.page-faq .faq-support__visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--faq-radius);
  border: 1px solid var(--color-border);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.25);
}

.page-faq .faq-support__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent-2);
  border-radius: var(--faq-radius);
  padding: 30px 24px;
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.22);
}

.page-faq .faq-support__title {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text);
}

.page-faq .faq-support__desc {
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-muted);
}

.page-faq .faq-support__list {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-faq .faq-support__row {
  display: grid;
  gap: 4px;
}

.page-faq .faq-support__row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.page-faq .faq-support__row dd {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  word-break: break-word;
}

.page-faq .faq-support__card .btn {
  width: 100%;
  justify-content: center;
}

/* ---------- 使用指南 ---------- */
.page-faq .faq-guide__layout {
  display: grid;
  gap: 32px;
  grid-template-columns: 1fr;
}

.page-faq .faq-guide__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.page-faq .faq-guide__step {
  display: flex;
  gap: 18px;
  padding: 22px 18px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--faq-radius);
  transition: border-color 0.3s, transform 0.3s var(--ease-out);
}

.page-faq .faq-guide__step:hover {
  border-color: rgba(0, 255, 133, 0.35);
  transform: translateY(-2px);
}

.page-faq .faq-guide__num {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 500;
  line-height: 1;
  color: var(--color-accent);
}

.page-faq .faq-guide__step-body h3 {
  margin: 0 0 8px;
  font-family: var(--font-title);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
}

.page-faq .faq-guide__step-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--color-text-muted);
}

.page-faq .faq-guide__aside {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-faq .faq-guide__tip {
  border-left: 3px solid var(--color-accent);
  background: var(--color-surface);
  border-radius: 0 var(--faq-radius) var(--faq-radius) 0;
  padding: 20px 18px;
}

.page-faq .faq-guide__tip--blue {
  border-left-color: var(--color-accent-2);
}

.page-faq .faq-guide__tip-label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent);
  letter-spacing: 0.06em;
}

.page-faq .faq-guide__tip--blue .faq-guide__tip-label {
  color: var(--color-accent-2);
}

.page-faq .faq-guide__tip p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-muted);
}

/* ---------- 响应式增强 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero__aside {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .faq-popular__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-popular__card:first-child {
    grid-column: span 2;
  }

  .page-faq .faq-popular__card:last-child {
    grid-column: span 2;
  }

  .page-faq .faq-guide__steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-support__grid {
    grid-template-columns: 1.15fr 1fr;
  }

  .page-faq .faq-support__row {
    grid-template-columns: 130px 1fr;
    align-items: baseline;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    padding: 64px 0 72px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: 1.06fr 1fr;
    gap: 56px;
  }

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

  .page-faq .faq-popular__grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .page-faq .faq-popular__card:first-child,
  .page-faq .faq-popular__card:last-child {
    grid-column: auto;
  }

  .page-faq .faq-categories__layout {
    grid-template-columns: var(--faq-nav-width) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-nav {
    position: sticky;
    top: 108px;
  }

  .page-faq .faq-nav__list {
    flex-direction: column;
    gap: 6px;
    margin-bottom: 8px;
  }

  .page-faq .faq-nav__link {
    width: 100%;
    justify-content: space-between;
    border-radius: 10px;
    border-left: 3px solid var(--color-border);
    padding: 13px 16px;
  }

  .page-faq .faq-category__title {
    margin-bottom: 0;
  }

  .page-faq .faq-guide__layout {
    grid-template-columns: 1.35fr 1fr;
    gap: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}