.page-faq {
  --faq-gap: clamp(20px, 3.6vw, 40px);
  --faq-index-w: 236px;
  --faq-cut: 14px;
  background: var(--ys-ink);
  color: var(--ys-text);
  font-family: var(--ys-font-body);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(24px, 4.5vw, 56px) clamp(36px, 6vw, 76px);
  background:
    radial-gradient(90% 120% at 92% -10%, rgba(33, 230, 214, 0.16), transparent 62%),
    radial-gradient(70% 90% at 0% 100%, rgba(255, 106, 43, 0.1), transparent 70%),
    var(--ys-ink);
  border-bottom: 1px solid var(--ys-line);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  align-items: center;
}

.page-faq .faq-hero__title {
  margin: 14px 0 18px;
  font-family: var(--ys-font-display);
  font-weight: 300;
  font-size: clamp(2rem, 5.6vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: 0.04em;
  color: var(--ys-text);
  text-wrap: balance;
}

.page-faq .faq-hero__title span {
  color: var(--ys-cyan);
}

.page-faq .faq-hero__lede {
  max-width: 42ch;
  margin: 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ys-text-soft);
}

.page-faq .faq-hero__jumps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 12px;
  font-size: 0.8125rem;
  color: var(--ys-muted);
  text-decoration: none;
  border: 1px solid var(--ys-line-soft);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  transition: color 0.18s var(--ys-ease), border-color 0.18s var(--ys-ease),
    background-color 0.18s var(--ys-ease);
}

.page-faq .faq-jump .ys-mono {
  color: var(--ys-teal);
  font-size: 0.75rem;
}

.page-faq .faq-jump:hover,
.page-faq .faq-jump:focus-visible {
  color: var(--ys-ink);
  background-color: var(--ys-cyan);
  border-color: var(--ys-cyan);
}

.page-faq .faq-jump:hover .ys-mono,
.page-faq .faq-jump:focus-visible .ys-mono {
  color: var(--ys-ink);
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  background: var(--ys-panel);
  border: 1px solid var(--ys-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(33, 230, 214, 0.14) 0 1px, transparent 1px 52px),
    repeating-linear-gradient(0deg, rgba(33, 230, 214, 0.1) 0 1px, transparent 1px 52px);
  pointer-events: none;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.06);
}

.page-faq .faq-hero__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 8px 16px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--ys-ink);
  background: var(--ys-amber);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

/* ---------- 正文双栏 ---------- */
.page-faq .faq-body {
  padding-block: clamp(36px, 6vw, 80px);
  background: linear-gradient(180deg, var(--ys-ink) 0%, #070b11 100%);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

/* 左侧索引 */
.page-faq .faq-index {
  border: 1px solid var(--ys-line-soft);
  background: rgba(14, 20, 29, 0.72);
  padding: 18px 16px 20px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--ys-font-display);
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  color: var(--ys-muted);
  text-transform: uppercase;
}

.page-faq .faq-index__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  font-size: 0.9375rem;
  color: var(--ys-text-soft);
  text-decoration: none;
  border-left: 2px solid var(--ys-line-soft);
  transition: color 0.18s var(--ys-ease), border-color 0.18s var(--ys-ease),
    background-color 0.18s var(--ys-ease);
}

.page-faq .faq-index__no {
  font-size: 0.75rem;
  color: var(--ys-teal);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--ys-text);
  border-left-color: var(--ys-cyan);
  background-color: rgba(33, 230, 214, 0.08);
}

.page-faq .faq-index__note {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--ys-line);
}

.page-faq .faq-index__noteTitle {
  margin: 0 0 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ys-text);
}

.page-faq .faq-index__noteText {
  margin: 0 0 14px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--ys-muted);
}

.page-faq .faq-index__btn {
  display: inline-block;
  width: 100%;
  text-align: center;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: clamp(36px, 5vw, 64px);
}

.page-faq .faq-group {
  scroll-margin-top: 96px;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  align-items: start;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--ys-line);
}

.page-faq .faq-group__num {
  padding-top: 4px;
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1;
  color: rgba(33, 230, 214, 0.55);
  letter-spacing: 0.04em;
}

.page-faq .faq-group__title {
  margin: 0 0 6px;
  font-family: var(--ys-font-display);
  font-weight: 300;
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
  letter-spacing: 0.04em;
  color: var(--ys-text);
}

.page-faq .faq-group__lede {
  margin: 0;
  max-width: 46ch;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--ys-muted);
}

.page-faq .faq-group__link {
  color: var(--ys-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(33, 230, 214, 0.4);
  transition: color 0.18s var(--ys-ease), border-color 0.18s var(--ys-ease);
}

.page-faq .faq-group__link:hover,
.page-faq .faq-group__link:focus-visible {
  color: var(--ys-amber);
  border-bottom-color: var(--ys-amber);
}

/* 注册三步 */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps__item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: rgba(12, 110, 113, 0.16);
  border-left: 2px solid var(--ys-teal);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
}

.page-faq .faq-steps__num {
  font-size: 0.8125rem;
  color: var(--ys-cyan);
}

.page-faq .faq-steps__label {
  font-size: 0.875rem;
  color: var(--ys-text-soft);
}

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

.page-faq .faq-item {
  background: linear-gradient(180deg, rgba(14, 20, 29, 0.92), rgba(14, 20, 29, 0.6));
  border: 1px solid var(--ys-line-soft);
  border-left: 2px solid transparent;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  transition: border-color 0.2s var(--ys-ease), background-color 0.2s var(--ys-ease);
}

.page-faq .faq-item:hover {
  border-color: var(--ys-line);
}

.page-faq .faq-item[open] {
  border-left-color: var(--ys-cyan);
  background: linear-gradient(180deg, rgba(33, 230, 214, 0.08), rgba(14, 20, 29, 0.92));
}

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 18px;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ys-text);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--ys-font-mono);
  font-size: 1.05rem;
  color: var(--ys-cyan);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
  color: var(--ys-amber);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--ys-cyan);
  outline-offset: -3px;
}

.page-faq .faq-item__idx {
  flex: 0 0 auto;
  font-size: 0.75rem;
  padding-top: 2px;
  color: rgba(33, 230, 214, 0.55);
}

.page-faq .faq-item__a {
  padding: 0 18px 18px calc(18px + 1.6em);
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 60ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ys-text-soft);
}

/* ---------- 多端分组（带侧图） ---------- */
.page-faq .faq-group__main {
  min-width: 0;
}

.page-faq .faq-group__aside {
  margin: 22px 0 0;
  border: 1px solid var(--ys-line-soft);
  background: var(--ys-panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .faq-group__aside img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-faq .faq-group__aside figcaption {
  padding: 10px 14px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--ys-muted);
  border-top: 1px solid var(--ys-line-soft);
}

/* ---------- 客服联系块 ---------- */
.page-faq .faq-contact {
  margin-top: 20px;
  padding: 20px;
  background: linear-gradient(120deg, rgba(255, 138, 61, 0.12), rgba(26, 18, 53, 0.85));
  border-left: 3px solid var(--ys-lava);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-faq .faq-contact__k {
  margin: 0 0 6px;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--ys-amber);
}

.page-faq .faq-contact__v {
  margin: 0 0 8px;
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  color: var(--ys-text);
  word-break: break-all;
}

.page-faq .faq-contact__meta {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--ys-muted);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  padding-block: clamp(40px, 6vw, 72px);
  background:
    linear-gradient(180deg, rgba(42, 14, 28, 0.92), rgba(6, 8, 13, 1)),
    var(--ys-wine);
  border-top: 1px solid var(--ys-line);
}

.page-faq .faq-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: center;
}

.page-faq .faq-cta__copy h2 {
  margin: 10px 0 12px;
  font-family: var(--ys-font-display);
  font-weight: 300;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  letter-spacing: 0.04em;
  color: var(--ys-text);
}

.page-faq .faq-cta__copy .ys-text {
  margin: 0;
  max-width: 48ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ys-text-soft);
}

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

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-faq .faq-group--split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: clamp(20px, 3vw, 36px);
    align-items: start;
  }

  .page-faq .faq-group__aside {
    margin-top: 0;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 32px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body__grid {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-group--split {
    grid-template-columns: minmax(0, 1fr) 272px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump,
  .page-faq .faq-index__link,
  .page-faq .faq-item,
  .page-faq .faq-group__link {
    transition-duration: 0.01ms;
  }
}