.page-faq {
  --faq-gap: clamp(16px, 3vw, 28px);
  --faq-ink: var(--vip-slate);
  display: block;
}

.page-faq__hero {
  padding-top: clamp(20px, 3vw, 34px);
}

.page-faq__heroGrid {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  margin-top: clamp(18px, 3vw, 30px);
  align-items: center;
}

.page-faq__title {
  font-family: var(--vip-serif);
  font-weight: 400;
  font-size: clamp(29px, 5.2vw, 52px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--vip-wine);
  margin: 14px 0 0;
  overflow-wrap: break-word;
}

.page-faq__lede {
  margin: 18px 0 0;
  max-width: 48ch;
  font-family: var(--vip-sans);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
  color: var(--faq-ink);
}

.page-faq__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px clamp(22px, 4vw, 44px);
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--vip-hair);
}

.page-faq__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 84px;
}

.page-faq__statNum {
  font-family: var(--vip-italic);
  font-style: italic;
  font-size: clamp(26px, 3.6vw, 38px);
  line-height: 1;
  color: var(--vip-gold);
}

.page-faq__statLabel {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--faq-ink);
  opacity: 0.7;
}

.page-faq__heroMedia {
  margin: 0;
}

.page-faq__head {
  max-width: 62ch;
}

.page-faq__h2 {
  font-family: var(--vip-serif);
  font-weight: 400;
  font-size: clamp(23px, 3.2vw, 34px);
  line-height: 1.3;
  color: var(--vip-wine);
  margin: 12px 0 0;
}

.page-faq__sub {
  margin: 12px 0 0;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.88;
  color: var(--faq-ink);
  opacity: 0.86;
}

/* ---------- 快速开始 ---------- */
.faq-steps {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.faq-steps__item {
  position: relative;
  padding: 24px 20px 22px 26px;
  border: 1px solid var(--vip-hair);
  border-radius: var(--vip-r-lg);
  background: linear-gradient(158deg, rgba(232, 223, 211, 0.5), rgba(247, 243, 238, 0.95));
  overflow: hidden;
}

.faq-steps__item::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--vip-green), var(--vip-gold) 62%, var(--vip-red));
}

.faq-steps__num {
  display: block;
  font-family: var(--vip-italic);
  font-style: italic;
  font-size: 30px;
  line-height: 1;
  color: var(--vip-terra);
}

.faq-steps__title {
  font-family: var(--vip-serif);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.4;
  color: var(--vip-wine);
  margin: 12px 0 8px;
}

.faq-steps__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-ink);
}

/* ---------- 阶段路径 ---------- */
.faq-guide__layout {
  display: grid;
  gap: 22px;
  margin-top: clamp(22px, 3vw, 34px);
}

.faq-guide__index {
  border: 1px solid var(--vip-hair);
  border-radius: var(--vip-r-lg);
  background: rgba(247, 243, 238, 0.72);
  padding: 18px 16px;
}

.faq-guide__indexTitle {
  margin: 0 0 12px;
  font-family: var(--vip-italic);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--vip-gold);
}

.faq-guide__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.faq-guide__link {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  padding: 9px 10px;
  border-radius: var(--vip-r-md);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.55;
  color: var(--faq-ink);
  transition: background 0.25s var(--vip-ease), color 0.25s var(--vip-ease);
}

.faq-guide__link:hover,
.faq-guide__link:focus-visible {
  background: rgba(90, 23, 39, 0.07);
  color: var(--vip-wine);
  outline: none;
}

.faq-guide__linkNo {
  font-family: var(--vip-italic);
  font-style: italic;
  font-size: 13px;
  color: var(--vip-gold);
}

.faq-guide__indexNote {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--vip-hair-ink);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--faq-ink);
  opacity: 0.75;
}

.faq-guide__stages {
  min-width: 0;
}

.faq-stage {
  border: 1px solid var(--vip-hair);
  border-radius: var(--vip-r-lg);
  background: #fff;
  overflow: hidden;
  scroll-margin-top: 132px;
  box-shadow: 0 6px 20px rgba(58, 14, 25, 0.05);
}

.faq-stage + .faq-stage {
  margin-top: 12px;
}

.faq-stage__head {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 17px 54px 17px 18px;
  cursor: pointer;
  list-style: none;
  background: linear-gradient(90deg, rgba(90, 23, 39, 0.06), rgba(90, 23, 39, 0) 68%);
}

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

.faq-stage__head::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--vip-gold);
  border-bottom: 1.5px solid var(--vip-gold);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.3s var(--vip-ease);
}

.faq-stage[open] .faq-stage__head::after {
  transform: translateY(-30%) rotate(-135deg);
}

.faq-stage__head:hover {
  background: linear-gradient(90deg, rgba(90, 23, 39, 0.1), rgba(90, 23, 39, 0) 68%);
}

.faq-stage__no {
  display: inline-block;
  padding: 4px 11px;
  border: 1px solid rgba(201, 111, 59, 0.42);
  border-radius: var(--vip-r-pill);
  font-family: var(--vip-italic);
  font-style: italic;
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--vip-terra);
  white-space: nowrap;
}

.faq-stage__title {
  font-family: var(--vip-serif);
  font-weight: 600;
  font-size: clamp(16px, 2.2vw, 19px);
  line-height: 1.4;
  color: var(--vip-wine);
  overflow-wrap: break-word;
}

.faq-stage__count {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--faq-ink);
  opacity: 0.6;
  white-space: nowrap;
}

.faq-stage__nodes {
  list-style: none;
  margin: 0;
  padding: 6px 18px 20px;
  border-top: 1px solid var(--vip-hair-ink);
  background: linear-gradient(180deg, rgba(232, 223, 211, 0.32), rgba(247, 243, 238, 0.2));
}

.faq-stage__node {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 13px 0;
  border-bottom: 1px dashed var(--vip-hair-ink);
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--faq-ink);
}

.faq-stage__node:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.faq-stage__nodeNo {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--vip-sand);
  color: var(--vip-wine);
  font-family: var(--vip-italic);
  font-style: italic;
  font-size: 12px;
  line-height: 1;
}

/* ---------- 资料库 ---------- */
.faq-lib__panel {
  position: relative;
  margin-top: clamp(22px, 3vw, 32px);
}

.faq-lib__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.faq-lib__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.faq-lib__tab {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--vip-hair);
  border-radius: var(--vip-r-pill);
  background: rgba(247, 243, 238, 0.8);
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--faq-ink);
  cursor: pointer;
  transition: background 0.25s var(--vip-ease), color 0.25s var(--vip-ease), border-color 0.25s var(--vip-ease);
}

.faq-lib__tab:hover {
  border-color: var(--vip-gold);
  color: var(--vip-wine);
}

.faq-lib__grid {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.faq-lib__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 20px 18px;
  border: 1px solid var(--vip-hair);
  border-radius: var(--vip-r-md);
  background: #fff;
  transition: transform 0.3s var(--vip-ease), box-shadow 0.3s var(--vip-ease), border-color 0.3s var(--vip-ease);
}

.faq-lib__card:hover {
  transform: translateY(-3px);
  border-color: var(--vip-gold);
  box-shadow: var(--vip-shadow);
}

.faq-lib__cardTitle {
  font-family: var(--vip-serif);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.45;
  color: var(--vip-wine);
  margin: 0;
}

.faq-lib__cardText {
  margin: 0;
  flex: 1;
  font-size: 14px;
  line-height: 1.82;
  color: var(--faq-ink);
}

.faq-lib__cardLink {
  align-self: flex-start;
  font-size: 13.5px;
  color: var(--vip-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 111, 139, 0.32);
  padding-bottom: 2px;
  transition: color 0.25s var(--vip-ease), border-color 0.25s var(--vip-ease);
}

.faq-lib__cardLink:hover,
.faq-lib__cardLink:focus-visible {
  color: var(--vip-wine);
  border-color: var(--vip-wine);
  outline: none;
}

/* 分类筛选（渐进增强，无 JS 亦可切换） */
#lib-a:checked ~ .faq-lib__grid .faq-lib__card:not([data-cat="a"]),
#lib-b:checked ~ .faq-lib__grid .faq-lib__card:not([data-cat="b"]),
#lib-c:checked ~ .faq-lib__grid .faq-lib__card:not([data-cat="c"]),
#lib-d:checked ~ .faq-lib__grid .faq-lib__card:not([data-cat="d"]) {
  display: none;
}

#lib-all:checked ~ .faq-lib__tabs .faq-lib__tab[for="lib-all"],
#lib-a:checked ~ .faq-lib__tabs .faq-lib__tab[for="lib-a"],
#lib-b:checked ~ .faq-lib__tabs .faq-lib__tab[for="lib-b"],
#lib-c:checked ~ .faq-lib__tabs .faq-lib__tab[for="lib-c"],
#lib-d:checked ~ .faq-lib__tabs .faq-lib__tab[for="lib-d"] {
  background: var(--vip-wine);
  border-color: var(--vip-wine);
  color: var(--vip-ivory);
  box-shadow: inset 0 -2px 0 var(--vip-cyan);
}

#lib-all:focus-visible ~ .faq-lib__tabs .faq-lib__tab[for="lib-all"],
#lib-a:focus-visible ~ .faq-lib__tabs .faq-lib__tab[for="lib-a"],
#lib-b:focus-visible ~ .faq-lib__tabs .faq-lib__tab[for="lib-b"],
#lib-c:focus-visible ~ .faq-lib__tabs .faq-lib__tab[for="lib-c"],
#lib-d:focus-visible ~ .faq-lib__tabs .faq-lib__tab[for="lib-d"] {
  outline: 2px solid var(--vip-cyan);
  outline-offset: 2px;
}

/* ---------- 常见问题 ---------- */
.faq-acc {
  margin-top: clamp(20px, 3vw, 30px);
  display: grid;
  gap: 10px;
}

.faq-acc__item {
  border: 1px solid var(--vip-hair);
  border-radius: var(--vip-r-md);
  background: rgba(247, 243, 238, 0.9);
  overflow: hidden;
}

.faq-acc__q {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 16px 52px 16px 20px;
  font-family: var(--vip-serif);
  font-weight: 600;
  font-size: clamp(15px, 1.9vw, 16.5px);
  line-height: 1.6;
  color: var(--vip-wine);
}

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

.faq-acc__q::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 1.5px solid var(--vip-terra);
  border-bottom: 1.5px solid var(--vip-terra);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.3s var(--vip-ease);
}

.faq-acc__item[open] .faq-acc__q::after {
  transform: translateY(-30%) rotate(-135deg);
}

.faq-acc__q:hover {
  color: var(--vip-terra);
}

.faq-acc__a {
  padding: 0 20px 18px;
  border-top: 1px solid var(--vip-hair-ink);
}

.faq-acc__a p {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--faq-ink);
}

/* ---------- 联系支持 ---------- */
.faq-help__panel {
  display: grid;
  gap: 24px;
  padding: clamp(24px, 4vw, 40px);
  border-radius: var(--vip-r-lg);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(198, 154, 75, 0.22), rgba(198, 154, 75, 0) 58%),
    linear-gradient(150deg, var(--vip-wine) 0%, var(--vip-wine-deep) 100%);
  color: var(--vip-ivory);
}

.faq-help__title {
  font-family: var(--vip-serif);
  font-weight: 400;
  font-size: clamp(23px, 3.2vw, 32px);
  line-height: 1.32;
  margin: 12px 0 0;
  color: var(--vip-ivory);
}

.faq-help__text {
  margin: 14px 0 22px;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(247, 243, 238, 0.86);
}

.faq-help__meta {
  margin: 0;
  display: grid;
  gap: 2px;
  border-top: 1px solid rgba(198, 154, 75, 0.36);
}

.faq-help__row {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(198, 154, 75, 0.22);
}

.faq-help__key {
  font-family: var(--vip-italic);
  font-style: italic;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--vip-gold-soft);
}

.faq-help__val {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--vip-ivory);
  overflow-wrap: anywhere;
}

.faq-help__hint {
  display: block;
  margin-top: 2px;
  font-size: 12.5px;
  color: rgba(247, 243, 238, 0.62);
}

.faq-help__more {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--faq-ink);
}

.faq-help__link {
  color: var(--vip-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 111, 139, 0.32);
  padding-bottom: 1px;
}

.faq-help__link:hover,
.faq-help__link:focus-visible {
  color: var(--vip-wine);
  border-color: var(--vip-wine);
  outline: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .faq-lib__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .faq-help__row {
    grid-template-columns: 116px minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-faq__heroGrid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  }

  .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .faq-guide__layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .faq-guide__index {
    position: sticky;
    top: 132px;
  }

  .faq-lib__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .faq-help__panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    gap: 40px;
  }
}

@media (min-width: 1180px) {
  .faq-lib__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .faq-lib__card:nth-child(3n) {
    grid-column: span 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }
}