/* ========================================
   问答中心 · 页面专属样式
   作用域：.page-faq
   ======================================== */

.page-faq {
  background: var(--color-cream);
  color: var(--color-ink);
  overflow-x: hidden;
}

/* ---- 面包屑上方留白 ---- */
.page-faq .faq-topbar {
  padding-top: 20px;
  padding-bottom: 4px;
}

.page-faq .faq-topbar .breadcrumb__link {
  color: var(--color-electric);
  text-decoration: none;
}

.page-faq .faq-topbar .breadcrumb__link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ---- 引言区 ---- */
.page-faq .faq-hero {
  background: linear-gradient(145deg, var(--color-deep) 0%, var(--color-primary) 65%, var(--color-electric) 160%);
  color: var(--color-cream);
  padding: 36px 0 48px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -100px;
  bottom: -100px;
  width: 260px;
  height: 260px;
  border: 40px solid rgba(57, 255, 20, 0.08);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 24px;
  align-items: end;
}

.page-faq .faq-hero__text {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .section-kicker {
  color: var(--color-neon);
  font-weight: 700;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  text-transform: uppercase;
  margin: 0 0 8px;
}

.page-faq .faq-hero .page-title {
  font-family: var(--font-head);
  font-size: 1.65rem;
  line-height: 1.35;
  color: #ffffff;
  margin: 0;
  max-width: 720px;
}

.page-faq .faq-hero__lead {
  margin: 14px 0 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(245, 240, 225, 0.85);
  max-width: 640px;
}

.page-faq .faq-hero__lead a {
  color: var(--color-neon);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-faq .faq-hero__lead a:hover {
  color: #ffffff;
}

.page-faq .faq-hero__meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__stat {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(57, 255, 20, 0.16);
  border-radius: var(--radius-sm);
  padding: 12px 10px;
  text-align: center;
}

.page-faq .faq-hero__stat .stat__value {
  display: block;
  font-family: var(--font-head);
  font-size: 1.6rem;
  line-height: 1;
  color: #ffffff;
}

.page-faq .faq-hero__stat .stat__value--neon {
  color: var(--color-neon);
}

.page-faq .faq-hero__stat .stat__label {
  display: block;
  margin-top: 6px;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: rgba(245, 240, 225, 0.72);
  line-height: 1.4;
}

/* ---- 分类快速索引 ---- */
.page-faq .faq-index {
  padding: 24px 0 6px;
  background: var(--color-cream);
}

.page-faq .faq-index__tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.page-faq .faq-index__tags .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 999px;
  background: #ffffff;
  border: 1px solid var(--border-soft);
  border-left: 3px solid transparent;
  color: var(--color-primary);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.page-faq .faq-index__tags .tag:hover,
.page-faq .faq-index__tags .tag:focus-visible {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-card);
  transform: translateY(-1px);
}

.page-faq .faq-index__tags .tag--orange {
  border-left-color: var(--color-orange);
}

.page-faq .faq-index__tags .tag--live {
  border-left-color: var(--color-neon);
}

.page-faq .faq-index__tags .tag--blue {
  border-left-color: var(--color-electric);
}

/* ---- 分类区块 ---- */
.page-faq .faq-cat {
  padding: 42px 0 30px;
}

.page-faq .faq-cat--light {
  background: #ffffff;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 22px;
}

.page-faq .faq-cat__no {
  font-family: var(--font-head);
  font-size: 0.92rem;
  color: var(--color-orange);
  line-height: 1;
  letter-spacing: 0.06em;
}

.page-faq .faq-cat .section-title {
  font-family: var(--font-head);
  font-size: 1.4rem;
  line-height: 1.25;
  color: var(--color-primary);
  margin: 0;
  letter-spacing: 0.01em;
}

.page-faq .faq-cat__head::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--color-orange) 0%, rgba(255, 107, 53, 0.18) 100%);
}

/* ---- 订阅流程图 ---- */
.page-faq .faq-flow {
  margin: 0 0 22px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px dashed rgba(11, 30, 62, 0.2);
  border-radius: var(--radius);
}

.page-faq .faq-flow img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

/* ---- 问答列表 ---- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  background: var(--color-glass);
  border: 1px solid var(--border-soft);
  border-left: 4px solid var(--color-primary);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-item[open] {
  border-left-color: var(--color-neon);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px;
  font-family: var(--font-head);
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-faq .faq-item__q::after {
  content: "+";
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(11, 30, 62, 0.07);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-orange);
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
  background: var(--color-orange);
  color: #ffffff;
  transform: rotate(180deg);
}

.page-faq .faq-item__a {
  padding: 12px 16px 16px;
  margin: 0 16px 16px;
  border-top: 1px dashed rgba(11, 30, 62, 0.14);
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--color-ink);
}

.page-faq .faq-item__a p + p {
  margin-top: 10px;
}

.page-faq .faq-item__a strong {
  font-weight: 700;
  color: var(--color-primary);
  box-shadow: inset 0 -3px 0 rgba(57, 255, 20, 0.4);
}

.page-faq .faq-item__a a {
  color: var(--color-electric);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 600;
}

.page-faq .faq-item__a a:hover {
  color: var(--color-primary);
  text-decoration-thickness: 2px;
}

/* ---- 账号验证双栏 ---- */
.page-faq .faq-account {
  display: grid;
  gap: 20px;
  align-items: start;
}

.page-faq .faq-secure {
  margin: 0;
  padding: 14px;
  background: var(--color-deep);
  border-radius: var(--radius);
  min-width: 0;
}

.page-faq .faq-secure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
}

/* ---- CTA 号召带 ---- */
.page-faq .faq-cta {
  padding: 44px 0 20px;
}

.page-faq .faq-cta .cta-band {
  background: var(--color-primary);
  border-radius: var(--radius);
  padding: 34px 22px 38px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-cta .cta-band::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-neon), var(--color-orange));
}

.page-faq .cta-band__inner {
  position: relative;
  z-index: 1;
}

.page-faq .cta-band__kicker {
  display: block;
  margin: 0 0 10px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-neon);
}

.page-faq .cta-band__title {
  font-family: var(--font-head);
  font-size: 1.35rem;
  line-height: 1.35;
  color: #ffffff;
  margin: 0 0 12px;
  max-width: 560px;
}

.page-faq .cta-band__desc {
  margin: 0 0 22px;
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(245, 240, 225, 0.8);
  max-width: 600px;
}

.page-faq .cta-band__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.page-faq .cta-band .btn--primary {
  background: var(--color-orange);
  border: 2px solid var(--color-orange);
  color: #ffffff;
}

.page-faq .cta-band .btn--primary:hover {
  background: #e5511a;
  border-color: #e5511a;
}

.page-faq .cta-band .btn--ghost {
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: var(--color-cream);
  background: transparent;
}

.page-faq .cta-band .btn--ghost:hover {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

/* ---- 更多帮助卡片 ---- */
.page-faq .faq-more {
  padding: 36px 0 56px;
}

.page-faq .faq-more__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 20px 18px;
  text-decoration: none;
  border-radius: var(--radius);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-more__card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-pop);
  border-color: rgba(57, 255, 20, 0.5);
}

.page-faq .faq-more__title {
  font-family: var(--font-head);
  font-size: 1rem;
  line-height: 1.4;
  color: var(--color-primary);
  margin: 0;
}

.page-faq .faq-more__card p {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--color-ink);
  margin: 0;
}

/* ---- 平板及以上 ---- */
@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: 48px 0 60px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 1.55fr 1fr;
    gap: 28px;
  }

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

  .page-faq .faq-hero__meta {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .page-faq .faq-hero__stat {
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
  }

  .page-faq .faq-hero__stat .stat__value {
    font-size: 1.5rem;
    min-width: 56px;
  }

  .page-faq .faq-hero__stat .stat__label {
    margin-top: 0;
  }

  .page-faq .faq-cat {
    padding: 50px 0 40px;
  }

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

  .page-faq .faq-list {
    gap: 12px;
  }

  .page-faq .faq-item__q {
    font-size: 1rem;
    padding: 18px 20px;
  }

  .page-faq .faq-item__a p {
    font-size: 0.95rem;
  }

  .page-faq .faq-flow {
    max-width: 600px;
  }

  .page-faq .faq-account {
    grid-template-columns: 1fr 300px;
    gap: 24px;
  }

  .page-faq .faq-secure {
    position: sticky;
    top: 100px;
  }

  .page-faq .cta-band {
    padding: 40px 32px 46px;
  }

  .page-faq .cta-band__title {
    font-size: 1.6rem;
  }
}

/* ---- 桌面端 ---- */
@media (min-width: 992px) {
  .page-faq .faq-hero {
    padding: 56px 0 70px;
  }

  .page-faq .faq-hero .page-title {
    font-size: 2.35rem;
    line-height: 1.25;
  }

  .page-faq .faq-hero__lead {
    font-size: 1.05rem;
  }

  .page-faq .faq-index__tags {
    gap: 14px;
  }

  .page-faq .faq-index__tags .tag {
    padding: 9px 20px;
    font-size: 0.92rem;
  }

  .page-faq .faq-cat__head {
    margin-bottom: 30px;
  }

  .page-faq .faq-cat__no {
    font-size: 1.05rem;
  }

  .page-faq .faq-list {
    gap: 14px;
  }
}