/* ===== K1体育支持中心 / page-faq ===== */
.page-faq {
  --faq-grid: rgba(242, 246, 250, 0.03);
  --faq-line: rgba(0, 212, 255, 0.3);
  --faq-neon-soft: rgba(198, 255, 62, 0.12);
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
}

.page-faq .container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  padding-block: var(--space-5) var(--space-3);
  font-size: 0.875rem;
}
.page-faq .breadcrumbs__link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-faq .breadcrumbs__link:hover {
  color: var(--secondary-electric);
}
.page-faq .breadcrumbs__sep {
  color: var(--text-muted);
}
.page-faq .breadcrumbs__current {
  color: var(--text-primary);
  font-weight: 700;
}

/* 首屏 */
.page-faq__hero {
  position: relative;
  padding-block: var(--space-1) var(--space-7);
  overflow: hidden;
}
.page-faq__hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, transparent 0 38%, var(--faq-neon-soft) 38.6%, transparent 39.2%),
    linear-gradient(180deg, rgba(10, 14, 20, 0) 0%, rgba(18, 24, 34, 0.55) 100%);
  pointer-events: none;
}
.page-faq__hero::after {
  content: "FAQ";
  position: absolute;
  right: -0.2em;
  top: 28%;
  font-family: var(--font-data);
  font-size: clamp(5rem, 16vw, 11rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.06em;
  color: rgba(242, 246, 250, 0.04);
  transform: rotate(90deg);
  white-space: nowrap;
  pointer-events: none;
}
.page-faq__kicker {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-family: var(--font-data);
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--secondary-electric);
}
.page-faq__kicker::before {
  content: "";
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-neon), var(--secondary-electric));
}
.page-faq__title {
  max-width: 12em;
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.9rem, 5vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  transform: skewX(var(--skew));
}
.page-faq__title-accent {
  display: block;
  margin-top: var(--space-3);
  font-size: clamp(1.05rem, 2.6vw, 1.6rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.4;
  color: var(--primary-neon);
}
.page-faq__lead {
  max-width: 42em;
  margin: 0 0 var(--space-5);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}
.page-faq__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
.page-faq__hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.page-faq__hero-inner {
  display: grid;
  gap: var(--space-5);
}
.page-faq__hero-board {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--line-subtle);
  border-top: 3px solid var(--primary-neon);
  background:
    linear-gradient(135deg, rgba(198, 255, 62, 0.05), transparent 60%),
    var(--bg-surface);
}
.page-faq__board-label {
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.page-faq__board-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}
.page-faq__board-cell {
  padding: var(--space-3);
  background: var(--bg-elevated);
  font-size: 0.75rem;
  line-height: 1.45;
  color: var(--text-secondary);
}
.page-faq__board-cell b {
  display: block;
  margin-bottom: var(--space-1);
  font-family: var(--font-data);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--primary-neon);
}
.page-faq__board-cell:nth-child(2) b {
  color: var(--secondary-electric);
}
.page-faq__board-cell:nth-child(3) b {
  color: var(--accent-gold);
}
.page-faq__board-cell:nth-child(4) b {
  color: var(--secondary-electric);
}
@media (min-width: 900px) {
  .page-faq__hero-inner {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: var(--space-7);
    align-items: start;
  }
  .page-faq__hero-board {
    margin-top: var(--space-6);
  }
}

/* 通用区块头 */
.page-faq__section-head {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.page-faq__section-copy {
  flex: 1;
  min-width: 0;
}
.page-faq__section-en {
  font-family: var(--font-data);
  font-size: 0.8125rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--secondary-electric);
}
.page-faq__section-title {
  margin: var(--space-1) 0 0;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.4vw, 2.4rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  transform: skewX(var(--skew));
}
.page-faq__section-desc {
  max-width: 38em;
  margin: var(--space-2) 0 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* 常见问题 */
.page-faq__faq {
  padding-block: var(--space-7);
  border-top: 1px solid var(--line-subtle);
  scroll-margin-top: calc(var(--header-bar-height) + var(--space-4));
}
.page-faq__faq-img {
  display: block;
  width: 100%;
  max-width: 400px;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-subtle);
  background: var(--bg-surface);
}
@media (min-width: 760px) {
  .page-faq__section-head--faq {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--space-6);
  }
  .page-faq__section-head--faq .page-faq__faq-img {
    flex: 0 0 400px;
    width: 400px;
  }
}
.page-faq__faq-layout {
  display: grid;
  gap: var(--space-6);
  align-items: start;
}
.page-faq__faq-index {
  padding: var(--space-4);
  border: 1px solid var(--line-subtle);
  background: var(--bg-surface);
}
.page-faq__index-caption {
  margin: 0 0 var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--line-subtle);
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.page-faq__index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-faq__index-item + .page-faq__index-item {
  border-top: 1px solid rgba(35, 43, 56, 0.55);
}
.page-faq__index-link {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-2);
  font-size: 0.9375rem;
  line-height: 1.45;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast), background var(--transition-fast);
}
.page-faq__index-link:hover {
  color: var(--primary-neon);
  background: rgba(198, 255, 62, 0.06);
}
.page-faq__index-num {
  flex-shrink: 0;
  font-family: var(--font-data);
  font-size: 0.875rem;
  color: var(--text-muted);
}
.page-faq__index-link:hover .page-faq__index-num {
  color: var(--secondary-electric);
}
@media (min-width: 960px) {
  .page-faq__faq-layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: var(--space-7);
  }
  .page-faq__faq-index {
    position: sticky;
    top: calc(var(--header-bar-height) + var(--space-5));
  }
}
.page-faq__item {
  position: relative;
  margin: 0 0 var(--space-4);
  border: 1px solid var(--line-subtle);
  background: var(--bg-surface);
  overflow: hidden;
  transition: border-color var(--transition-base);
}
.page-faq__item[open] {
  border-color: rgba(0, 212, 255, 0.35);
}
.page-faq__item::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-neon), var(--secondary-electric) 70%, transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out-expo);
}
.page-faq__item[open]::after {
  transform: scaleX(1);
}
.page-faq__item-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
}
.page-faq__item-title::-webkit-details-marker {
  display: none;
}
.page-faq__item-title::after {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  font-family: var(--font-data);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--secondary-electric);
  border: 1px solid var(--line-subtle);
  transition: transform 0.3s var(--ease-out-expo), color var(--transition-fast), border-color var(--transition-fast);
}
.page-faq__item[open] .page-faq__item-title::after {
  content: "−";
  color: var(--primary-neon);
  border-color: rgba(198, 255, 62, 0.45);
  transform: rotate(180deg);
}
.page-faq__item-title:hover {
  color: var(--secondary-electric);
}
.page-faq__answer {
  padding: 0 var(--space-5) var(--space-5);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-secondary);
}
.page-faq__answer p {
  margin: 0 0 var(--space-3);
}
.page-faq__answer p:last-child {
  margin: 0;
}
.page-faq__text-link {
  color: var(--secondary-electric);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.page-faq__text-link:hover {
  color: var(--primary-neon);
}

/* 入口变更指引 */
.page-faq__guide {
  padding-block: var(--space-7);
  border-top: 1px solid var(--line-subtle);
  background:
    linear-gradient(var(--faq-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid) 1px, transparent 1px);
  background-size: 36px 36px;
  scroll-margin-top: calc(var(--header-bar-height) + var(--space-4));
}
.page-faq__steps {
  list-style: none;
  margin: 0 0 var(--space-7);
  padding: 0;
}
.page-faq__step {
  position: relative;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: var(--space-4);
  padding-bottom: var(--space-5);
}
.page-faq__step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 56px;
  bottom: -12px;
  left: 25px;
  width: 2px;
  background: linear-gradient(180deg, var(--faq-line), rgba(0, 212, 255, 0.06));
}
.page-faq__step-num {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--secondary-electric);
  color: var(--bg-base);
  font-family: var(--font-data);
  font-size: 1.125rem;
  font-weight: 700;
  box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.12);
}
.page-faq__step:nth-child(2) .page-faq__step-num {
  background: var(--primary-neon);
  box-shadow: 0 0 0 4px rgba(198, 255, 62, 0.12);
}
.page-faq__step:nth-child(3) .page-faq__step-num {
  background: var(--accent-gold);
  box-shadow: 0 0 0 4px rgba(255, 194, 75, 0.12);
}
.page-faq__step:nth-child(4) .page-faq__step-num {
  background: var(--secondary-electric);
  box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.12);
}
.page-faq__step-title {
  margin: var(--space-1) 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--text-primary);
}
.page-faq__step-text {
  margin: 0 0 var(--space-3);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-secondary);
}
.page-faq__step-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--secondary-electric);
  text-decoration: none;
}
.page-faq__step-link:hover {
  color: var(--primary-neon);
}
.page-faq__legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin: 0 0 var(--space-5);
  padding: var(--space-4);
  border: 1px solid var(--line-subtle);
  background: rgba(18, 24, 34, 0.6);
}
.page-faq .legend__dot--electric {
  background: var(--secondary-electric);
  box-shadow: 0 0 8px rgba(0, 212, 255, 0.6);
}
.page-faq__guide-figure {
  margin: 0;
  border: 1px solid var(--line-subtle);
  background: var(--bg-surface);
}
.page-faq__guide-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq__guide-caption {
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--line-subtle);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

/* 实时比分双版对照 */
.page-faq__dual {
  position: relative;
  padding-block: var(--space-7);
  border-top: 1px solid var(--line-subtle);
  overflow: hidden;
  scroll-margin-top: calc(var(--header-bar-height) + var(--space-4));
}
.page-faq__dual::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 240px;
  background: radial-gradient(ellipse at 90% 0%, rgba(0, 212, 255, 0.08), transparent 62%);
  pointer-events: none;
}
.page-faq__dual .container {
  position: relative;
}
.page-faq__dual-grid {
  display: grid;
  gap: var(--space-4);
}
@media (min-width: 700px) {
  .page-faq__dual-grid {
    grid-template-columns: 1fr 1fr;
  }
}
.page-faq__version {
  position: relative;
  padding: var(--space-6);
  border: 1px solid var(--line-subtle);
  background: var(--bg-surface);
  transition: transform var(--transition-base), border-color var(--transition-base);
}
.page-faq__version:hover {
  transform: translateY(-3px);
  border-color: rgba(198, 255, 62, 0.4);
}
.page-faq__version--adv {
  border-top: 3px solid var(--primary-neon);
}
.page-faq__version-tag {
  display: inline-block;
  margin-bottom: var(--space-4);
  padding: var(--space-1) var(--space-3);
  border: 1px solid rgba(0, 212, 255, 0.3);
  font-family: var(--font-data);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--secondary-electric);
}
.page-faq__version--adv .page-faq__version-tag {
  border-color: rgba(198, 255, 62, 0.35);
  color: var(--primary-neon);
}
.page-faq__version-title {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.375rem;
  color: var(--text-primary);
}
.page-faq__version-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-faq__version-list li {
  position: relative;
  margin-bottom: var(--space-2);
  padding-left: var(--space-5);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-secondary);
}
.page-faq__version-list li::before {
  content: "▶";
  position: absolute;
  left: 0;
  top: 0.12em;
  font-size: 0.625rem;
  color: var(--secondary-electric);
}
.page-faq__dual-note {
  margin-top: var(--space-6);
  padding: var(--space-5);
  border-left: 3px solid var(--accent-gold);
  background: var(--bg-surface);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-secondary);
}
.page-faq__dual-note p {
  margin: 0 0 var(--space-3);
}
.page-faq__dual-note p:last-child {
  margin: 0;
}

/* 联系支持 */
.page-faq__contact {
  position: relative;
  padding-block: var(--space-7) var(--space-9);
  border-top: 1px solid var(--line-subtle);
  overflow: hidden;
  scroll-margin-top: calc(var(--header-bar-height) + var(--space-4));
}
.page-faq__contact::after {
  content: "";
  position: absolute;
  inset-inline: -20%;
  bottom: -20px;
  height: 120px;
  background: linear-gradient(105deg, transparent 30%, rgba(198, 255, 62, 0.05) 50%, transparent 72%);
  transform: rotate(-3deg);
  pointer-events: none;
}
.page-faq__contact-head {
  display: grid;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}
.page-faq__trust {
  padding: var(--space-5);
  border: 1px solid rgba(198, 255, 62, 0.3);
  background: linear-gradient(135deg, rgba(198, 255, 62, 0.08), rgba(0, 212, 255, 0.05));
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-secondary);
}
.page-faq__trust p {
  margin: 0;
}
@media (min-width: 900px) {
  .page-faq__contact-head {
    grid-template-columns: minmax(0, 1fr) 380px;
    align-items: end;
  }
}
.page-faq__contact-layout {
  display: grid;
  gap: var(--space-6);
}
@media (min-width: 900px) {
  .page-faq__contact-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-7);
  }
}
.page-faq__contact-cards {
  display: grid;
  gap: var(--space-4);
}
.page-faq__contact-card {
  padding: var(--space-5);
  border: 1px solid var(--line-subtle);
  border-left: 3px solid var(--secondary-electric);
  background: var(--bg-surface);
}
.page-faq__contact-card--gold {
  border-left-color: var(--accent-gold);
}
.page-faq__contact-icon {
  display: inline-block;
  margin-bottom: var(--space-3);
  font-family: var(--font-data);
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  color: var(--primary-neon);
}
.page-faq__contact-label {
  display: block;
  margin-bottom: var(--space-1);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.page-faq__contact-value {
  display: inline-block;
  margin-bottom: var(--space-2);
  font-family: var(--font-heading);
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-faq__contact-value:hover {
  color: var(--secondary-electric);
}
.page-faq__contact-desc {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
}
.page-faq__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  align-content: start;
}
.page-faq__stat {
  position: relative;
  padding: var(--space-5);
  border: 1px solid var(--line-subtle);
  background: var(--bg-elevated);
  overflow: hidden;
}
.page-faq__stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--secondary-electric);
}
.page-faq__stat:nth-child(2)::before {
  background: var(--primary-neon);
}
.page-faq__stat:nth-child(3)::before {
  background: var(--accent-gold);
}
.page-faq__stat:nth-child(4)::before {
  background: var(--secondary-electric);
}
.page-faq__stat-num {
  display: block;
  margin-bottom: var(--space-2);
  font-family: var(--font-data);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-primary);
}
.page-faq__stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}
.page-faq__contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-7);
  padding-top: var(--space-6);
  border-top: 1px solid var(--line-subtle);
}

/* 焦点可见性 */
.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--secondary-electric);
  outline-offset: 2px;
}