.page-faq {
  --group-color: var(--gray);
  --faq-wine: var(--wine);
  --faq-teal: var(--teal);
  --faq-green: var(--green);
  --faq-purple: var(--purple);
  background: var(--light);
  color: var(--dark);
  overflow: hidden;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--topbar-h) + var(--header-h) + 12px);
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  background-color: var(--teal);
  background-image:
    radial-gradient(circle at 90% 18%, rgba(255, 255, 255, 0.08) 0%, transparent 46%),
    linear-gradient(135deg, rgba(232, 240, 76, 0.09) 0%, transparent 42%);
  color: var(--light);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(115deg, transparent 0 20px, rgba(255, 255, 255, 0.045) 20px 21px);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--yellow) 0 25%, var(--red) 25% 50%, var(--green) 50% 75%, var(--gray) 75% 100%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  align-items: center;
  gap: 2rem;
  padding-top: clamp(2.5rem, 7vw, 5rem);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
}

@media (min-width: 940px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 3rem;
  }
}

.page-faq .faq-hero .breadcrumb {
  color: rgba(245, 245, 240, 0.7);
  margin-bottom: 1.2rem;
}

.page-faq .faq-hero .breadcrumb a {
  color: var(--light);
  text-decoration-color: rgba(245, 245, 240, 0.45);
}

.page-faq .faq-hero__label {
  margin-bottom: 0.9rem;
}

.page-faq .faq-hero h1 {
  margin: 0 0 1.1rem;
  max-width: 640px;
  font-family: var(--font-title);
  font-size: clamp(1.85rem, 4.2vw, 3.15rem);
  line-height: 1.16;
  letter-spacing: 0.01em;
  color: var(--light);
}

.page-faq .faq-hero__lead {
  max-width: 580px;
  margin: 0 0 1.6rem;
  color: rgba(245, 245, 240, 0.84);
  font-size: 1.0625rem;
  line-height: 1.85;
}

.page-faq .faq-hero__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--yellow);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid rgba(232, 240, 76, 0.55);
  padding-bottom: 0.2rem;
  transition: border-color 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-faq .faq-hero__link:hover {
  border-color: var(--yellow);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(245, 245, 240, 0.18);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-faq .faq-hero__figcap {
  position: absolute;
  left: 14px;
  bottom: 12px;
  color: var(--dark);
  background: var(--yellow);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.7rem;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

/* ============ 问题索引 ============ */
.page-faq .faq-index {
  background: var(--dark);
  color: var(--light);
}

.page-faq .faq-index__inner {
  display: grid;
  gap: 1.5rem;
  padding-top: 2.25rem;
  padding-bottom: 2.25rem;
}

@media (min-width: 760px) {
  .page-faq .faq-index__inner {
    grid-template-columns: 260px 1fr;
    align-items: center;
    gap: 2.5rem;
  }
}

.page-faq .faq-index__title {
  margin: 0 0 0.35rem;
  font-family: var(--font-title);
  font-size: clamp(1.4rem, 2.4vw, 1.95rem);
  color: var(--light);
}

.page-faq .faq-index__note {
  margin: 0;
  color: rgba(245, 245, 240, 0.68);
  font-size: 0.92rem;
}

.page-faq .faq-index__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.page-faq .faq-index__link {
  --index-color: var(--gray);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(245, 245, 240, 0.16);
  color: var(--light);
  text-decoration: none;
  font-weight: 700;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  transition: background 0.25s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-faq .faq-index__link:hover {
  background: var(--red);
  border-color: var(--red);
}

.page-faq .faq-index__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--index-color);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.12);
}

.page-faq .faq-index__link:nth-child(1) {
  --index-color: var(--faq-teal);
}

.page-faq .faq-index__link:nth-child(2) {
  --index-color: var(--faq-green);
}

.page-faq .faq-index__link:nth-child(3) {
  --index-color: var(--faq-purple);
}

.page-faq .faq-index__link:nth-child(4) {
  --index-color: var(--faq-wine);
}

.page-faq .faq-index__link .data-mono {
  color: var(--yellow);
}

/* ============ FAQ 分组 ============ */
.page-faq .faq-group {
  padding: clamp(3rem, 7vw, 5rem) 0;
}

.page-faq .faq-group--account {
  --group-color: var(--faq-teal);
  background: var(--light);
}

.page-faq .faq-group--data {
  --group-color: var(--faq-green);
  background: #ECEDE8;
}

.page-faq .faq-group--mobile {
  --group-color: var(--faq-purple);
  background: var(--teal);
  color: var(--light);
}

.page-faq .faq-group--updates {
  --group-color: var(--faq-wine);
  background: #FFFFFF;
}

.page-faq .faq-group__wrap {
  display: grid;
  gap: 2rem;
}

@media (min-width: 920px) {
  .page-faq .faq-group__wrap {
    grid-template-columns: minmax(300px, 340px) minmax(0, 1fr);
    gap: clamp(2.5rem, 8vw, 7rem);
  }
}

.page-faq .faq-group__head {
  position: relative;
  padding-left: 1.25rem;
  border-left: 6px solid var(--group-color);
}

.page-faq .faq-group__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 3.2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--group-color);
  opacity: 0.22;
  margin-bottom: 0.8rem;
}

.page-faq .faq-group__head h2 {
  margin: 0 0 0.55rem;
  font-family: var(--font-title);
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  line-height: 1.25;
  color: var(--wine);
}

.page-faq .faq-group__head p {
  margin: 0;
  max-width: 26rem;
  color: var(--gray);
  font-size: 0.95rem;
  line-height: 1.75;
}

.page-faq .faq-group__list {
  display: grid;
  gap: 0.9rem;
  align-content: start;
  min-width: 0;
}

/* ============ 手风琴项 ============ */
.page-faq .faq-item {
  background: #FFFFFF;
  border: 1px solid rgba(138, 141, 143, 0.3);
  border-left: 4px solid var(--group-color);
  transition: box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-faq .faq-item[open] {
  box-shadow: 0 10px 30px rgba(26, 29, 31, 0.1);
}

.page-faq .faq-group--updates .faq-item {
  background: var(--light);
}

.page-faq .faq-item__summary {
  list-style: none;
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr) 22px;
  gap: 0.9rem;
  align-items: center;
  padding: 1.2rem 1.25rem;
  cursor: pointer;
}

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

.page-faq .faq-item__summary:hover {
  background: rgba(138, 141, 143, 0.09);
}

.page-faq .faq-item__light {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--gray);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.45);
  transition: background 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-faq .faq-item[open] .faq-item__light {
  background: var(--yellow);
  box-shadow: 0 0 0 5px rgba(232, 240, 76, 0.35);
}

.page-faq .faq-item__q {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--dark);
  padding: 0.25rem 0;
}

.page-faq .faq-item__mark {
  position: relative;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--gray);
  background: transparent;
  transition: background 0.25s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 9px;
  height: 2px;
  background: var(--gray);
  transform: translate(-50%, -50%);
  transition: background 0.25s cubic-bezier(0.4, 0, 0.2, 1), transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-faq .faq-item__mark::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__mark {
  background: var(--red);
  border-color: var(--red);
}

.page-faq .faq-item[open] .faq-item__mark::before,
.page-faq .faq-item[open] .faq-item__mark::after {
  background: var(--white);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: translate(-50%, -50%) scaleX(0);
}

.page-faq .faq-item__a {
  margin: 0.35rem 0 0;
  padding: 0 1.5rem 1.5rem calc(1.5rem + 12px + 0.9rem);
  border-top: 1px dashed rgba(138, 141, 143, 0.24);
  color: #44484B;
  font-size: 0.95rem;
  line-height: 1.85;
}

@media (max-width: 560px) {
  .page-faq .faq-item__a {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

.page-faq .faq-item__a p {
  margin: 0.9rem 0 0;
}

.page-faq .faq-item__a a {
  color: var(--green-deep);
  font-weight: 600;
  text-decoration-thickness: 2px;
  transition: color 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-faq .faq-item__a a:hover {
  color: var(--red);
}

/* ============ 移动端深色舞台 ============ */
.page-faq .faq-group--mobile .faq-group__head .faq-group__num {
  color: var(--yellow);
  opacity: 0.9;
}

.page-faq .faq-group--mobile .faq-group__head h2 {
  color: var(--light);
}

.page-faq .faq-group--mobile .faq-group__head p {
  color: rgba(245, 245, 240, 0.76);
}

.page-faq .faq-group__stage {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}

@media (min-width: 860px) {
  .page-faq .faq-group__stage {
    grid-template-columns: minmax(260px, 380px) minmax(0, 1fr);
    align-items: start;
    gap: clamp(2rem, 5vw, 3.5rem);
  }
}

.page-faq .faq-group__media {
  position: relative;
  margin: 0;
  background: rgba(255, 255, 255, 0.07);
  padding: 0.5rem 0.5rem 3rem;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.page-faq .faq-group__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 7;
  object-fit: cover;
}

.page-faq .faq-group__media figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0.6rem 1rem 0.7rem;
  color: rgba(245, 245, 240, 0.78);
  font-size: 0.82rem;
  line-height: 1.4;
}

.page-faq .faq-group--mobile .faq-item {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(245, 245, 240, 0.16);
  border-left-color: var(--group-color);
}

.page-faq .faq-group--mobile .faq-item[open] {
  background: rgba(255, 255, 255, 0.13);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.28);
}

.page-faq .faq-group--mobile .faq-item__summary:hover {
  background: rgba(255, 255, 255, 0.09);
}

.page-faq .faq-group--mobile .faq-item__q {
  color: var(--light);
}

.page-faq .faq-group--mobile .faq-item__a {
  color: rgba(245, 245, 240, 0.82);
  border-top-color: rgba(245, 245, 240, 0.22);
}

.page-faq .faq-group--mobile .faq-item__a a {
  color: var(--yellow);
}

/* ============ 底部联系区 ============ */
.page-faq .faq-contact {
  position: relative;
  background: var(--wine);
  color: var(--light);
}

.page-faq .faq-contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(115deg, transparent 0 16px, rgba(255, 255, 255, 0.04) 16px 17px);
  pointer-events: none;
}

.page-faq .faq-contact__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1.6rem;
  align-items: center;
  padding-top: clamp(2.5rem, 5vw, 4rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}

@media (min-width: 760px) {
  .page-faq .faq-contact__inner {
    grid-template-columns: 1fr auto;
    gap: 2.5rem;
  }
}

.page-faq .faq-contact__tag {
  margin-bottom: 0.8rem;
}

.page-faq .faq-contact__text h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-title);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.3;
  color: var(--light);
}

.page-faq .faq-contact__text p:last-child {
  margin: 0;
  max-width: 42rem;
  color: rgba(245, 245, 240, 0.85);
  line-height: 1.8;
}

.page-faq .faq-contact__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.5rem;
  background: var(--yellow);
  color: var(--dark);
  font-weight: 800;
  font-family: var(--font-title);
  text-decoration: none;
  white-space: nowrap;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-faq .faq-contact__btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

@media (max-width: 480px) {
  .page-faq .faq-contact__btn {
    width: 100%;
  }
}

/* ============ 动效 ============ */
@media (prefers-reduced-motion: no-preference) {
  .page-faq .faq-item[open] .faq-item__light {
    animation: faq-light-pulse 2.4s ease-out infinite;
  }

  @keyframes faq-light-pulse {
    0% {
      box-shadow: 0 0 0 0 rgba(232, 240, 76, 0.45);
    }
    60% {
      box-shadow: 0 0 0 8px rgba(232, 240, 76, 0);
    }
    100% {
      box-shadow: 0 0 0 0 rgba(232, 240, 76, 0);
    }
  }
}