/* ============================================================
   page-faq —— 帮助问答
   ============================================================ */

.page-faq {
  --faq-gap: clamp(2.75rem, 7vw, 5.5rem);
  --faq-heading: #EAF6FA;
  display: block;
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding-block: 1.15rem 0;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.78rem;
  color: var(--text-mute);
}

.page-faq .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.page-faq .breadcrumb li + li::before {
  content: "›";
  color: rgba(159, 217, 232, 0.45);
}

.page-faq .breadcrumb a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--neon);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(1.4rem, 4vw, 2.4rem) clamp(2rem, 6vw, 3.4rem);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -38%;
  right: -28%;
  width: min(34rem, 92vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(63, 240, 216, 0.15) 0%, rgba(63, 240, 216, 0.05) 46%, transparent 72%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero .kicker {
  color: var(--neon);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 8vw, 3.1rem);
  line-height: 1.16;
  letter-spacing: -0.012em;
  margin: 0.6rem 0 1.05rem;
  max-width: 24ch;
  color: var(--faq-heading);
  text-shadow: 0 0 26px rgba(63, 240, 216, 0.22);
}

.page-faq .faq-hero__lead {
  max-width: 44rem;
  margin: 0 0 1.4rem;
  font-size: clamp(1rem, 2.4vw, 1.1rem);
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-section {
  padding-block: var(--faq-gap);
}

.page-faq .faq-section--mid {
  background:
    radial-gradient(120% 70% at 10% 0%, rgba(14, 43, 74, 0.88) 0%, transparent 62%),
    linear-gradient(180deg, rgba(14, 43, 74, 0.62), rgba(14, 43, 74, 0.28));
}

.page-faq .faq-h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.8vw, 2.25rem);
  line-height: 1.24;
  letter-spacing: -0.01em;
  margin: 0.45rem 0 0.85rem;
  color: var(--faq-heading);
}

.page-faq .faq-intro {
  max-width: 42rem;
  margin: 0 0 2rem;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-faq .faq-intro a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 240, 216, 0.4);
}

.page-faq .faq-intro a:hover,
.page-faq .faq-intro a:focus-visible {
  border-bottom-color: var(--neon);
}

/* ---------- 插图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(1.5rem, 4vw, 2.4rem);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  border: var(--hair);
  object-fit: cover;
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-figure--rail {
  margin-bottom: 0;
}

.page-faq .faq-figure--rail img {
  border-radius: var(--r-md);
}

/* ---------- 六步轨道 ---------- */
.page-faq .step-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.35rem;
}

.page-faq .step-track__item {
  position: relative;
  padding-top: 1.4rem;
  border-top: var(--hair);
}

.page-faq .step-track__item::before {
  content: "";
  position: absolute;
  top: -4.5px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: var(--glow-neon);
}

.page-faq .step-track__num {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .step-track__title {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--faq-heading);
}

.page-faq .step-track__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--text-dim);
}

/* ---------- 会员中心四块 ---------- */
.page-faq .member-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}

.page-faq .member-card {
  position: relative;
  padding: 1.3rem 1.35rem 1.4rem;
  border-radius: var(--r-md);
  border: var(--hair-soft);
  background: linear-gradient(160deg, rgba(63, 240, 216, 0.075), rgba(7, 20, 38, 0.35) 62%);
}

.page-faq .member-card:nth-child(2) {
  background: linear-gradient(160deg, rgba(139, 92, 246, 0.13), rgba(7, 20, 38, 0.35) 62%);
}

.page-faq .member-card:nth-child(4) {
  background: linear-gradient(160deg, rgba(255, 107, 74, 0.12), rgba(7, 20, 38, 0.35) 62%);
}

.page-faq .member-card h3 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--neon);
}

.page-faq .member-card:nth-child(2) h3 {
  color: var(--violet);
}

.page-faq .member-card:nth-child(4) h3 {
  color: var(--coral);
}

.page-faq .member-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-faq .member-card p a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 240, 216, 0.38);
}

.page-faq .member-card p a:hover,
.page-faq .member-card p a:focus-visible {
  border-bottom-color: var(--neon);
}

/* ---------- 双栏卡点 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-faq .faq-split__panel {
  padding: 1.5rem 1.4rem 1.6rem;
  border-radius: var(--r-lg);
  border: var(--hair);
  background: rgba(7, 20, 38, 0.5);
}

.page-faq .faq-split__panel--alt {
  border-color: rgba(139, 92, 246, 0.3);
  background: linear-gradient(165deg, rgba(139, 92, 246, 0.14), rgba(7, 20, 38, 0.55) 70%);
}

.page-faq .faq-split__title {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3.2vw, 1.5rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--faq-heading);
}

.page-faq .faq-split__note {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-faq .mini-steps {
  list-style: none;
  margin: 0 0 1.1rem;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-faq .mini-steps li {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding-bottom: 0.75rem;
  border-bottom: var(--hair-soft);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .mini-steps li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .mini-steps .mono {
  flex: none;
  font-size: 0.82rem;
  color: var(--gold);
}

.page-faq .rule-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.page-faq .rule-list li {
  position: relative;
  padding-left: 1.2rem;
  font-size: 0.95rem;
  line-height: 1.74;
  color: var(--text-dim);
}

.page-faq .rule-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--violet);
}

/* ---------- 问答墙 ---------- */
.page-faq .qa-wall {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-faq .qa-rail {
  display: grid;
  gap: 1.4rem;
}

.page-faq .cat-nav {
  padding: 1.05rem 1.1rem 1.15rem;
  border-radius: var(--r-md);
  border: var(--hair);
  background: rgba(7, 20, 38, 0.55);
}

.page-faq .cat-nav__title {
  margin: 0 0 0.8rem;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--text-mute);
}

.page-faq .cat-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-faq .cat-nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  min-height: 44px;
  padding: 0.4rem 0.9rem;
  border-radius: var(--r-pill);
  border: 1px solid rgba(63, 240, 216, 0.22);
  color: var(--text-dim);
  font-size: 0.88rem;
  text-decoration: none;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .cat-nav a:hover,
.page-faq .cat-nav a:focus-visible {
  color: var(--abyss);
  background: var(--neon);
  border-color: var(--neon);
}

.page-faq .cat-nav a .mono {
  font-size: 0.74rem;
  color: var(--gold);
}

.page-faq .cat-nav a:hover .mono,
.page-faq .cat-nav a:focus-visible .mono {
  color: var(--abyss);
}

/* ---------- 问答分组 ---------- */
.page-faq .qa-body {
  min-width: 0;
}

.page-faq .qa-group {
  margin-bottom: 2.2rem;
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-faq .qa-group:last-child {
  margin-bottom: 0;
}

.page-faq .qa-group__title {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 0.95rem;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--faq-heading);
}

.page-faq .qa-group__title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(63, 240, 216, 0.4), transparent);
}

.page-faq .qa-group__title .mono {
  font-size: 0.78rem;
  color: var(--gold);
}

/* ---------- 折叠条目 ---------- */
.page-faq .qa-item {
  margin-bottom: 0.6rem;
  border: var(--hair-soft);
  border-radius: var(--r-md);
  background: rgba(14, 43, 74, 0.42);
  overflow: hidden;
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}

.page-faq .qa-item:last-child {
  margin-bottom: 0;
}

.page-faq .qa-item[open] {
  border-color: rgba(63, 240, 216, 0.44);
  box-shadow: 0 0 0 1px rgba(63, 240, 216, 0.1), 0 0 28px -10px rgba(63, 240, 216, 0.55);
}

.page-faq .qa-item > summary {
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  min-height: 44px;
  padding: 0.95rem 1.05rem;
  cursor: pointer;
  font-size: 0.96rem;
  font-weight: 600;
  line-height: 1.6;
  color: #E4F1F7;
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .qa-item > summary::marker {
  content: "";
}

.page-faq .qa-item > summary:hover,
.page-faq .qa-item > summary:focus-visible {
  color: var(--neon);
}

.page-faq .qa-item__q {
  min-width: 0;
}

.page-faq .qa-item__mark {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  margin-left: auto;
  margin-top: 0.16rem;
  border-radius: 50%;
  border: 1px solid rgba(63, 240, 216, 0.44);
  transition: transform var(--t) var(--ease), background var(--t) var(--ease);
}

.page-faq .qa-item__mark::before,
.page-faq .qa-item__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 4px;
  right: 4px;
  height: 1.5px;
  background: var(--neon);
  transform: translateY(-50%);
}

.page-faq .qa-item__mark::after {
  transform: translateY(-50%) rotate(90deg);
  transition: transform var(--t) var(--ease), opacity var(--t) var(--ease);
}

.page-faq .qa-item[open] .qa-item__mark {
  background: rgba(63, 240, 216, 0.16);
  transform: rotate(180deg);
}

.page-faq .qa-item[open] .qa-item__mark::after {
  transform: translateY(-50%) rotate(0deg);
  opacity: 0;
}

.page-faq .qa-item__body {
  padding: 0.95rem 1.05rem 1.15rem;
  border-top: 1px solid rgba(63, 240, 216, 0.22);
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--ink);
  background-color: var(--paper);
  background-image: radial-gradient(circle at 50% 0%, rgba(63, 240, 216, 0.22), transparent 60%);
  background-repeat: no-repeat;
  background-size: 0% 0%;
}

.page-faq .qa-item[open] .qa-item__body {
  animation: faq-ripple 520ms var(--ease) both;
}

.page-faq .qa-item__body p {
  margin: 0;
}

@keyframes faq-ripple {
  from {
    background-size: 0% 0%;
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    background-size: 260% 260%;
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 求助收束 ---------- */
.page-faq .help-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}

.page-faq .help-card {
  padding: 1.4rem 1.4rem 1.5rem;
  border-radius: var(--r-lg);
  border: var(--hair-soft);
  background: rgba(14, 43, 74, 0.4);
}

.page-faq .help-card--accent {
  border-color: rgba(255, 107, 74, 0.32);
  background: linear-gradient(165deg, rgba(255, 107, 74, 0.14), rgba(14, 43, 74, 0.5) 72%);
}

.page-faq .help-card h3 {
  margin: 0 0 0.85rem;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--faq-heading);
}

.page-faq .help-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.page-faq .help-card li {
  position: relative;
  padding-left: 1.2rem;
  font-size: 0.93rem;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-faq .help-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--coral);
}

.page-faq .help-card p {
  margin: 0 0 0.7rem;
  font-size: 0.93rem;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-faq .help-card .mono {
  font-size: 0.9rem;
  color: var(--gold);
  word-break: break-word;
}

.page-faq .help-card .btn {
  margin-top: 0.5rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 40rem) {
  .page-faq .step-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.6rem 1.8rem;
  }
}

@media (min-width: 46rem) {
  .page-faq .member-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.2rem;
  }

  .page-faq .help-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 1.5rem;
  }
}

@media (min-width: 56rem) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 2.2rem;
    align-items: start;
  }
}

@media (min-width: 62rem) {
  .page-faq .faq-hero h1 {
    font-size: clamp(2.8rem, 5.2vw, 4.2rem);
    max-width: 22ch;
  }

  .page-faq .step-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem 2.2rem;
  }

  .page-faq .qa-wall {
    grid-template-columns: 17rem minmax(0, 1fr);
    gap: 3rem;
    align-items: start;
  }

  .page-faq .qa-rail {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-faq .cat-nav ul {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0.2rem;
  }

  .page-faq .cat-nav a {
    width: 100%;
    border-radius: var(--r-sm);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-item[open] .qa-item__body {
    animation: none;
    background-size: 260% 260%;
  }

  .page-faq .qa-item__mark,
  .page-faq .qa-item__mark::after {
    transition: none;
  }
}