/* ============ 万博MAX · 答疑中心（/answers/） ============ */

.page-faq {
  --faq-line-soft: rgba(36, 48, 74, 0.72);
  --faq-panel-bg: rgba(14, 21, 38, 0.86);
  --faq-qa-bg: rgba(10, 16, 32, 0.78);
  display: block;
}

/* ---------- 页首 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 24px 0 48px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 88% at 88% -12%, rgba(124, 77, 255, 0.32), transparent 58%),
    radial-gradient(78% 66% at 2% 4%, rgba(53, 208, 186, 0.13), transparent 62%),
    linear-gradient(158deg, var(--panel) 0%, var(--bg) 56%, var(--violet-bg) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--faq-line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--faq-line-soft) 1px, transparent 1px);
  background-size: 76px 76px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 84%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 84%);
  opacity: 0.5;
  pointer-events: none;
}

.page-faq .faq-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 28px;
  margin-top: 20px;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 7vw, 3.3rem);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 60ch;
  padding-left: 16px;
  border-left: 2px solid rgba(124, 77, 255, 0.55);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-hero__meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  margin: 26px 0 0;
  padding: 0;
}

.page-faq .faq-hero__meta-item {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero__meta-num {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-hero__meta-label {
  font-size: 0.8125rem;
  color: var(--muted);
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  background: linear-gradient(140deg, var(--violet-bg), var(--bg));
}

.page-faq .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 问答面板 ---------- */
.page-faq .faq-board {
  padding: 52px 0 8px;
}

.page-faq .faq-tabs {
  margin-top: 28px;
}

.page-faq .tabs__list {
  display: flex;
  gap: 10px;
  padding-bottom: 8px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: var(--faq-panel-bg);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.4;
  white-space: nowrap;
  cursor: pointer;
  transition:
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    background var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.page-faq .tab:hover {
  color: var(--text);
  border-color: var(--violet-soft);
}

.page-faq .tab:focus-visible {
  outline: 2px solid var(--violet-soft);
  outline-offset: 2px;
}

.page-faq .tab[aria-selected="true"] {
  color: var(--text);
  border-color: var(--violet);
  background: linear-gradient(135deg, rgba(124, 77, 255, 0.32), rgba(91, 43, 217, 0.12));
  box-shadow: 0 0 0 1px rgba(124, 77, 255, 0.35), 0 12px 28px rgba(124, 77, 255, 0.18);
}

.page-faq .tab__no {
  font-size: 0.8125rem;
  color: var(--gold);
}

.page-faq .tab[aria-selected="true"] .tab__no {
  color: var(--gold-soft);
}

.page-faq .tab__count {
  font-size: 0.75rem;
  color: var(--muted);
}

.page-faq .tabs__panel {
  margin-top: 22px;
  padding: 20px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--faq-panel-bg);
}

.page-faq .tabs__panel[hidden] {
  display: none;
}

.page-faq .faq-panel__head {
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px dashed var(--faq-line-soft);
}

.page-faq .faq-panel__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-faq .faq-panel__note {
  margin: 8px 0 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 单条问答 ---------- */
.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--faq-qa-bg);
  overflow: hidden;
  transition:
    border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

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

.page-faq .qa:hover {
  border-color: rgba(124, 77, 255, 0.45);
}

.page-faq .qa[open] {
  border-color: rgba(124, 77, 255, 0.6);
  box-shadow: 0 0 0 1px rgba(124, 77, 255, 0.18), 0 16px 34px rgba(3, 6, 16, 0.5);
}

.page-faq .qa__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "no title chev"
    "no tag chev";
  align-items: center;
  column-gap: 12px;
  row-gap: 6px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__summary:focus-visible {
  outline: 2px solid var(--violet-soft);
  outline-offset: -2px;
}

.page-faq .qa__no {
  grid-area: no;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--violet-soft);
}

.page-faq .qa__title {
  grid-area: title;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--text);
  transition: color var(--dur) var(--ease);
}

.page-faq .qa__summary:hover .qa__title {
  color: var(--violet-soft);
}

.page-faq .qa__tag {
  grid-area: tag;
  justify-self: start;
  font-size: 0.75rem;
}

.page-faq .qa__chev {
  grid-area: chev;
  position: relative;
  flex: none;
  width: 26px;
  height: 26px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition:
    transform var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.page-faq .qa__chev::before {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--violet-soft);
  border-bottom: 1.5px solid var(--violet-soft);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform var(--dur) var(--ease);
}

.page-faq .qa[open] .qa__chev {
  border-color: var(--violet);
  background: rgba(124, 77, 255, 0.24);
}

.page-faq .qa[open] .qa__chev::before {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-faq .qa__body {
  padding: 4px 16px 18px;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .qa__body p {
  margin: 10px 0 0;
}

.page-faq .qa__body a {
  color: var(--violet-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa__body a:hover {
  color: var(--gold-soft);
}

.page-faq .qa__tip {
  margin-top: 14px;
  padding: 12px 14px;
  border-left: 2px solid var(--mint);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(53, 208, 186, 0.08);
  color: var(--text);
  font-size: 0.875rem;
}

/* ---------- 步骤指示线 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-faq .steps__item {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 16px;
}

.page-faq .steps__item::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 30px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(124, 77, 255, 0.6), rgba(36, 48, 74, 0.15));
}

.page-faq .steps__item:last-child {
  padding-bottom: 0;
}

.page-faq .steps__item:last-child::before {
  display: none;
}

.page-faq .steps__no {
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  border: 1px solid rgba(230, 184, 76, 0.5);
  border-radius: 50%;
  background: rgba(230, 184, 76, 0.08);
  font-size: 0.75rem;
  color: var(--gold);
}

.page-faq .steps__text {
  margin: 0;
  padding-top: 2px;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 章节配图 ---------- */
.page-faq .faq-figure {
  position: relative;
  margin: 18px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(140deg, var(--violet-bg), var(--bg));
}

/* ---------- 页尾导流 ---------- */
.page-faq .faq-help {
  padding: 36px 0 60px;
}

.page-faq .faq-help__inner {
  display: grid;
  gap: 20px;
  padding: 24px 20px;
  border: 1px solid rgba(124, 77, 255, 0.4);
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, rgba(91, 43, 217, 0.42), rgba(124, 77, 255, 0.14) 46%, rgba(14, 21, 38, 0.92) 100%);
  box-shadow: var(--shadow);
}

.page-faq .faq-help__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.6vw, 2.1rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}

.page-faq .faq-help__note {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--muted);
}

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

/* ---------- 中等屏幕 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 28px 0 60px;
  }

  .page-faq .tabs__list {
    flex-wrap: wrap;
    overflow-x: visible;
    padding-bottom: 0;
  }

  .page-faq .tabs__panel {
    padding: 28px 26px;
  }

  .page-faq .qa__summary {
    grid-template-columns: auto minmax(0, 1fr) auto auto;
    grid-template-areas: "no title tag chev";
    column-gap: 16px;
    row-gap: 0;
    padding: 18px 22px;
  }

  .page-faq .qa__body {
    padding: 6px 22px 22px;
  }

  .page-faq .faq-help {
    padding: 44px 0 76px;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 32px 34px;
  }
}

/* ---------- 大屏：非对称双栏 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    gap: 46px;
  }

  .page-faq .faq-hero__main {
    max-width: 620px;
  }

  .page-faq .faq-hero__media {
    transform: translateY(-6px);
  }

  .page-faq .faq-tabs {
    margin-top: 34px;
  }

  .page-faq .tabs__panel {
    padding: 32px 34px;
  }

  .page-faq .faq-figure {
    margin-top: 24px;
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }

  .page-faq .faq-hero__media {
    transform: none;
  }
}