/* ===== 答疑中心 /answers/ ===== */

.page-faq {
  --faq-rail-w: 236px;
  --faq-line: rgba(124, 147, 166, .34);
  --faq-line-strong: rgba(124, 147, 166, .58);
  --faq-panel: var(--ink-800);
  padding-bottom: clamp(56px, 9vw, 112px);
  background: var(--ink-900);
  color: var(--paper);
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

/* ---------- 顶部区域 ---------- */

.page-faq .faq-top {
  position: relative;
  padding-top: clamp(18px, 3.2vw, 36px);
  padding-bottom: clamp(32px, 5.5vw, 64px);
  background-image:
    repeating-linear-gradient(115deg, rgba(37, 225, 206, .05) 0 1px, transparent 1px 28px);
  background-repeat: repeat;
}

.page-faq .breadcrumb {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--steel);
}

.page-faq .breadcrumb a {
  color: var(--steel);
  text-decoration: none;
}

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

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

.page-faq .faq-head {
  max-width: 940px;
}

.page-faq .page-head__eyebrow {
  display: inline-block;
  margin: 0;
  padding: 6px 13px;
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--cyan);
  border: var(--bw-1) solid rgba(37, 225, 206, .45);
  background: rgba(37, 225, 206, .07);
}

.page-faq .page-head__title {
  margin: clamp(18px, 3vw, 26px) 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.4vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .page-head__lede {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.78;
  color: var(--paper-mid);
}

/* ---------- 关键数字带 ---------- */

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  list-style: none;
  border: var(--bw-1) solid var(--faq-line);
  background: var(--faq-line);
}

@media (min-width: 620px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 20px;
  background: var(--ink-900);
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-faq .faq-stat__num small {
  margin-left: 3px;
  font-size: .46em;
  font-weight: 700;
  color: var(--steel);
}

.page-faq .faq-stat__label {
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- 首屏图 ---------- */

.page-faq .faq-hero {
  margin: clamp(24px, 3.6vw, 40px) 0 0;
  width: 100%;
  overflow: hidden;
  border: var(--bw-2) solid var(--faq-line-strong);
  box-shadow: var(--shadow-hard-lg);
  background: var(--ink-800);
}

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

/* ---------- 主区域栅格 ---------- */

.page-faq .faq-main {
  padding-top: clamp(30px, 5vw, 56px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 72px);
  }
}

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

/* ---------- 左侧分组索引轨 ---------- */

.page-faq .faq-rail {
  border-left: var(--bw-2) solid var(--cyan);
  padding-left: 14px;
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail__list li {
  flex: 0 0 auto;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 9px 13px;
  font-size: .875rem;
  line-height: 1.4;
  white-space: nowrap;
  color: var(--paper-mid);
  text-decoration: none;
  border: var(--bw-1) solid transparent;
  transition: color .18s var(--ease-out), border-color .18s var(--ease-out), background-color .18s var(--ease-out);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--cyan);
  border-color: rgba(37, 225, 206, .5);
  background: rgba(37, 225, 206, .07);
}

.page-faq .faq-rail__no {
  font-family: var(--font-mono);
  font-size: .6875rem;
  font-weight: 700;
  color: var(--cyan);
}

@media (min-width: 1000px) {
  .page-faq .faq-rail {
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__list li {
    flex: 0 0 auto;
  }

  .page-faq .faq-rail__link {
    justify-content: flex-start;
    padding: 9px 12px;
  }
}

/* ---------- 过滤条 ---------- */

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(24px, 3.4vw, 36px);
}

.page-faq .filter-chip {
  min-height: 38px;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--paper-mid);
  background: transparent;
  border: var(--bw-1) solid var(--faq-line);
  cursor: pointer;
  transition: color .18s var(--ease-out), border-color .18s var(--ease-out), background-color .18s var(--ease-out);
}

.page-faq .filter-chip:hover,
.page-faq .filter-chip:focus-visible {
  color: var(--cyan);
  border-color: rgba(37, 225, 206, .55);
}

.page-faq .filter-chip.is-active,
.page-faq .filter-chip[aria-pressed="true"] {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 分组 ---------- */

.page-faq .faq-group {
  margin-bottom: clamp(34px, 4.6vw, 60px);
  scroll-margin-top: 96px;
}

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

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 13px;
  margin-bottom: clamp(14px, 2vw, 20px);
  padding-bottom: 12px;
  border-bottom: var(--bw-2) solid var(--cyan);
}

.page-faq .faq-group__index {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-group--data .faq-group__head {
  border-bottom-color: var(--orange);
}

.page-faq .faq-group--data .faq-group__index {
  color: var(--orange);
}

.page-faq .faq-group--referee .faq-group__head {
  border-bottom-color: var(--steel);
}

.page-faq .faq-group--referee .faq-group__index {
  color: var(--steel);
}

.page-faq .faq-group--ticket .faq-group__head,
.page-faq .faq-group--partner .faq-group__head {
  border-bottom-color: var(--green);
}

.page-faq .faq-group--ticket .faq-group__index,
.page-faq .faq-group--partner .faq-group__index {
  color: #4ED08E;
}

.page-faq .faq-group--more .faq-group__head {
  border-bottom-color: var(--orange);
}

.page-faq .faq-group--more .faq-group__index {
  color: var(--orange);
}

/* ---------- 手风琴条目 ---------- */

.page-faq .faq-item {
  margin-bottom: 10px;
  background: var(--faq-panel);
  border: var(--bw-1) solid var(--faq-line);
  transition: border-color .18s var(--ease-out), box-shadow .18s var(--ease-out);
}

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

.page-faq .faq-item[open] {
  border-color: rgba(255, 122, 47, .42);
  box-shadow: inset 4px 0 0 0 var(--orange);
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 44px;
  padding: 15px 18px;
  list-style: none;
  cursor: pointer;
  color: var(--paper);
  transition: color .18s var(--ease-out);
}

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

.page-faq .faq-item__summary::marker {
  content: "";
}

.page-faq .faq-item__summary:hover,
.page-faq .faq-item__summary:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-item__summary::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--cyan);
}

.page-faq .faq-item[open] .faq-item__summary::after {
  content: "–";
  color: var(--orange);
}

.page-faq .faq-item__no {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--steel);
}

.page-faq .faq-item[open] .faq-item__no {
  color: var(--orange);
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: clamp(15px, 1.05vw, 1rem);
  line-height: 1.6;
  color: inherit;
}

.page-faq .faq-item__body {
  padding: 0 18px 16px 18px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-mid);
}

@media (min-width: 560px) {
  .page-faq .faq-item__body {
    padding-left: 53px;
  }
}

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

.page-faq .faq-item__body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 裁判分组：图文双栏 ---------- */

.page-faq .faq-group__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

@media (min-width: 800px) {
  .page-faq .faq-group__grid {
    grid-template-columns: minmax(0, 1fr) 268px;
    gap: 26px;
  }
}

.page-faq .faq-group__media {
  margin: 0;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--faq-panel);
  border: var(--bw-2) solid var(--steel);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-group__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 收尾区块 ---------- */

.page-faq .faq-cta {
  padding: clamp(22px, 3.4vw, 34px);
  background: var(--ink-800);
  border: var(--bw-2) solid rgba(255, 122, 47, .5);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.05vw, 1rem);
  line-height: 1.78;
  color: var(--paper-mid);
}

.page-faq .faq-cta__mail {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: .875rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--cyan);
  word-break: break-word;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 24px);
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-rail__link,
  .page-faq .filter-chip,
  .page-faq .faq-item,
  .page-faq .faq-item__summary {
    transition: none;
  }
}