.page-faq {
  --faq-zebra: rgba(14, 39, 64, .62);
  --faq-head-bg: rgba(8, 25, 42, .82);
  --faq-body-text: rgba(247, 250, 252, .78);
  --faq-mute: rgba(247, 250, 252, .58);
  color: var(--snow);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(96px, 13vw, 148px);
  padding-bottom: clamp(28px, 5vw, 56px);
}

.page-faq .faq-hero__glow {
  position: absolute;
  right: -14%;
  top: -34%;
  width: min(680px, 88vw);
  height: min(680px, 88vw);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 158, 219, .20), rgba(23, 167, 155, .09) 46%, transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -6%;
  bottom: 0;
  width: 112%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-sky) 32%, transparent 88%);
  transform: rotate(-1.4deg);
  transform-origin: left center;
  pointer-events: none;
}

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

.page-faq .faq-hero__top {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-faq .faq-hero .display {
  font-size: clamp(36px, 6.6vw, 82px);
  line-height: 1.06;
  font-weight: 300;
  letter-spacing: -.015em;
  margin: 14px 0 20px;
  max-width: 16em;
}

.page-faq .lede {
  max-width: 44ch;
  color: var(--faq-body-text);
  line-height: 1.85;
  font-size: clamp(15px, 1.5vw, 17px);
}

.page-faq .faq-hero__board {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 2px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-stat .data {
  flex: 0 0 auto;
}

.page-faq .faq-stat .data-label {
  text-align: right;
  line-height: 1.5;
}

/* ---------- 三级层叠布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.4vw, 48px);
  align-items: start;
}

.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-index__list li {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 2px;
  color: var(--faq-mute);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.45;
  transition: color .22s var(--ease), padding-left .22s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--snow);
  padding-left: 8px;
}

.page-faq .faq-index__list a:focus-visible {
  outline: 2px solid var(--sky);
  outline-offset: 2px;
}

.page-faq .faq-index__list .index-num {
  color: var(--steel);
  flex: 0 0 auto;
}

.page-faq .faq-rail {
  display: grid;
  gap: 14px;
  min-width: 0;
}

/* ---------- 内容块 ---------- */
.page-faq .faq-block {
  padding-bottom: clamp(30px, 4vw, 50px);
  margin-bottom: clamp(30px, 4vw, 50px);
  border-bottom: 1px solid var(--line-soft);
  scroll-margin-top: 112px;
}

.page-faq .faq-block:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.page-faq .faq-block__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 4px 14px;
}

.page-faq .faq-block__head h2 {
  margin: 0;
  font-size: clamp(22px, 2.9vw, 33px);
  font-weight: 400;
  line-height: 1.28;
  letter-spacing: -.01em;
}

.page-faq .faq-block__head .tag-row {
  grid-column: 2;
  margin-top: 8px;
}

.page-faq .faq-block__head .index-num {
  color: var(--steel);
  transition: color .25s var(--ease);
}

.page-faq .faq-block:target .index-num {
  color: var(--lava);
}

.page-faq .faq-p {
  margin: 16px 0 0;
  max-width: 64ch;
  color: var(--faq-body-text);
  line-height: 1.85;
  font-size: 15.5px;
}

.page-faq .faq-p a {
  color: var(--sky-lift);
  text-decoration: none;
  border-bottom: 1px solid var(--line-sky);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-p a:hover {
  color: var(--lava-lift);
  border-bottom-color: var(--lava);
}

.page-faq .faq-caption {
  caption-side: top;
  text-align: left;
  padding: 12px 14px 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--steel);
}

/* ---------- 三步入口 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 14px;
  padding: 15px 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-steps li:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-steps__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--lake);
  padding-top: 3px;
}

.page-faq .faq-steps p {
  margin: 0;
  color: var(--faq-body-text);
  line-height: 1.8;
  font-size: 15px;
}

/* ---------- 交锋示意图 ---------- */
.page-faq .faq-chart {
  margin-top: 24px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-faq .faq-chart img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 16 / 6;
  object-fit: cover;
  opacity: .42;
  filter: grayscale(.32) contrast(1.05);
}

/* ---------- 表格 ---------- */
.page-faq .table-wrap {
  margin-top: 22px;
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--bg-2);
  -webkit-overflow-scrolling: touch;
}

.page-faq .data-table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .data-table th,
.page-faq .data-table td {
  padding: 11px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .data-table thead th {
  background: var(--faq-head-bg);
  color: var(--steel);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .1em;
  white-space: nowrap;
}

.page-faq .data-table tbody tr:nth-child(even) {
  background: var(--faq-zebra);
}

.page-faq .data-table tbody th {
  font-weight: 500;
  color: var(--snow);
}

.page-faq .data-table td {
  color: var(--faq-body-text);
}

.page-faq .data-table td.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
  color: var(--snow);
  white-space: nowrap;
}

.page-faq .data-table tbody tr:hover {
  background: rgba(59, 158, 219, .10);
}

.page-faq .data-table th[data-sort] {
  cursor: pointer;
  user-select: none;
}

.page-faq .data-table th[data-sort]::after {
  content: "↕";
  margin-left: 6px;
  font-size: 10px;
  opacity: .55;
}

.page-faq .data-table th[aria-sort="ascending"]::after {
  content: "↑";
  opacity: 1;
  color: var(--lava);
}

.page-faq .data-table th[aria-sort="descending"]::after {
  content: "↓";
  opacity: 1;
  color: var(--lava);
}

.page-faq .data-table th[data-sort]:focus-visible {
  outline: 2px solid var(--sky);
  outline-offset: -2px;
}

/* ---------- 场馆区 ---------- */
.page-faq .faq-venue {
  display: grid;
  gap: 22px;
  margin-top: 4px;
}

.page-faq .faq-venue__media {
  margin: 22px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-2);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-faq .faq-venue__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.84) contrast(1.06);
}

.page-faq .faq-venue__media figcaption {
  padding: 11px 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12px;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- 筛选 ---------- */
.page-faq .faq-questions {
  min-width: 0;
}

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-bottom: 6px;
  margin-bottom: 4px;
}

.page-faq .faq-filter .eyebrow {
  margin-right: 6px;
}

.page-faq .faq-filter input[type="radio"] {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-filter label {
  display: inline-block;
  padding: 6px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--faq-mute);
  cursor: pointer;
  transition: background-color .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-filter label:hover {
  border-color: var(--sky);
  color: var(--snow);
}

.page-faq .faq-filter input:checked + label {
  background: var(--lava);
  border-color: var(--lava);
  color: #fff;
}

.page-faq .faq-filter input:focus-visible + label {
  outline: 2px solid var(--sky);
  outline-offset: 2px;
}

.page-faq .faq-filter .filter__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--steel);
}

.page-faq .is-hidden {
  display: none !important;
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  position: relative;
  border-top: 1px solid var(--line-soft);
  padding-left: 14px;
}

.page-faq .faq-item:last-of-type {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: var(--lake);
  opacity: 0;
  transform: scaleY(.25);
  transform-origin: top center;
  transition: opacity .25s var(--ease), transform .35s var(--ease);
}

.page-faq .faq-item[open]::before {
  opacity: 1;
  transform: scaleY(1);
}

.page-faq .faq-item summary {
  position: relative;
  display: block;
  padding: 16px 34px 16px 0;
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--snow);
  cursor: pointer;
  list-style: none;
  transition: color .2s var(--ease);
}

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

.page-faq .faq-item summary:hover {
  color: var(--sky-lift);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--sky);
  outline-offset: 2px;
}

.page-faq .faq-item summary::after {
  content: "";
  position: absolute;
  right: 10px;
  top: 24px;
  width: 8px;
  height: 8px;
  border-right: 1px solid var(--sky);
  border-bottom: 1px solid var(--sky);
  transform: rotate(45deg);
  transition: transform .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(-135deg);
  border-color: var(--lake);
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, rgba(23, 167, 155, .10), transparent 62%);
}

.page-faq .faq-item__body {
  padding: 0 34px 18px 0;
  color: var(--faq-body-text);
  font-size: 14.5px;
  line-height: 1.85;
}

.page-faq .faq-item__body p {
  margin: 0 0 10px;
  max-width: 62ch;
}

.page-faq .faq-item__body p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-item__body a {
  color: var(--sky-lift);
  text-decoration: none;
  border-bottom: 1px solid var(--line-sky);
}

.page-faq .faq-item__body a:hover {
  color: var(--lava-lift);
  border-bottom-color: var(--lava);
}

/* ---------- 侧栏延伸卡片 ---------- */
.page-faq .faq-card {
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  background: var(--bg-2);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-faq .faq-card--flat {
  background: transparent;
  border-style: dashed;
  clip-path: none;
}

.page-faq .faq-card__title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--snow);
}

.page-faq .faq-card__text {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--faq-mute);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-venue {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 340px);
    align-items: start;
    gap: 26px;
  }

  .page-faq .faq-venue__media {
    margin-top: 20px;
  }

  .page-faq .faq-hero__board {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: none;
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-stat {
    display: block;
    padding: 0 0 0 20px;
    border-bottom: none;
  }

  .page-faq .faq-stat .data {
    display: block;
  }

  .page-faq .faq-stat .data-label {
    display: block;
    margin-top: 8px;
    text-align: left;
  }
}

@media (min-width: 940px) {
  .page-faq .faq-hero__top {
    grid-template-columns: minmax(0, 1.55fr) minmax(300px, 1fr);
    align-items: end;
  }

  .page-faq .faq-layout {
    grid-template-columns: 186px minmax(0, 1fr);
    gap: clamp(30px, 3.6vw, 52px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 112px;
  }

  .page-faq .faq-rail {
    grid-column: 1 / -1;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-layout {
    grid-template-columns: 178px minmax(0, 1fr) 252px;
  }

  .page-faq .faq-rail {
    grid-column: auto;
    grid-template-columns: minmax(0, 1fr);
    position: sticky;
    top: 112px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__list a,
  .page-faq .faq-item::before,
  .page-faq .faq-item summary::after,
  .page-faq .faq-item summary,
  .page-faq .faq-filter label,
  .page-faq .faq-block__head .index-num {
    transition: none;
  }
}