/* ========================================
   PAGE FAQ — 8868体育帮助中心问答
   作用域：.page-faq — 不污染共享样式
   ======================================== */
.page-faq {
  --faq-card-angle: -1deg;
  --faq-border-w: 2px;
  background: var(--color-ink);
  color: var(--color-paper);
  overflow-x: hidden;
}

/* ===== Hero / 首屏 ===== */
.page-faq .faq-hero {
  padding-top: calc(var(--header-h) + 3rem);
  padding-bottom: var(--space-4);
  background:
    radial-gradient(ellipse at 85% 20%, rgba(255, 107, 44, 0.15), transparent 45%),
    linear-gradient(135deg, rgba(16, 42, 67, 0.55) 0%, var(--color-ink) 65%);
  position: relative;
}

.page-faq .crumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-fog);
  margin-bottom: var(--space-3);
  flex-wrap: wrap;
}

.page-faq .crumbs a {
  color: var(--color-fog);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-faq .crumbs a:hover {
  color: var(--color-orange);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: var(--space-3);
}

.page-faq .faq-hero-main .coord {
  margin-bottom: var(--space-1);
  color: var(--color-lime);
}

.page-faq .faq-hero-title {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-2);
}

.page-faq .faq-hero-title .title-accent {
  background: var(--grad-orange);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-hero-desc {
  color: var(--color-fog);
  font-size: 1rem;
  line-height: 1.75;
  max-width: 58ch;
  margin: 0 0 var(--space-2);
}

.page-faq .faq-hero-link {
  display: inline-block;
  color: var(--color-lime);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  margin-top: 0.25rem;
  padding-bottom: 2px;
  border-bottom: 2px solid rgba(232, 241, 77, 0.4);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-hero-link:hover {
  color: var(--color-orange);
  border-bottom-color: var(--color-orange);
}

.page-faq .faq-query-card {
  position: relative;
  background: var(--color-ink-2);
  border: var(--faq-border-w) solid var(--color-line);
  box-shadow: var(--shadow);
  padding: var(--space-3);
  transform: skewX(var(--faq-card-angle)) rotate(0.6deg);
  overflow: hidden;
}

.page-faq .faq-query-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--grad-orange);
  opacity: 0.08;
  pointer-events: none;
}

.page-faq .faq-query-title {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--color-lime);
  background: rgba(232, 241, 77, 0.08);
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--color-line);
  margin-bottom: var(--space-2);
  position: relative;
}

.page-faq .faq-query-card .query-box {
  position: relative;
}

.page-faq .faq-query-card .query-input {
  background: var(--color-ink);
  border: var(--faq-border-w) solid var(--color-line);
  color: var(--color-paper);
  font-family: var(--font-data);
  font-size: 0.95rem;
  padding: 0.75rem 4.6rem 0.75rem 0.9rem;
  width: 100%;
  outline: none;
  transition: border-color 0.2s ease;
}

.page-faq .faq-query-card .query-input:focus {
  border-color: var(--color-orange);
}

.page-faq .faq-query-card .query-label {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-lime);
  pointer-events: none;
}

.page-faq .faq-query-hint {
  font-size: 0.85rem;
  color: var(--color-fog);
  margin-top: var(--space-1);
  position: relative;
}

.page-faq .faq-qr-tag {
  position: absolute;
  right: 0.5rem;
  bottom: 0.5rem;
  font-family: var(--font-data);
  font-size: 0.65rem;
  color: var(--color-line);
  border: 1px dashed var(--color-line);
  padding: 0.3rem 0.5rem;
  transform: rotate(-3deg);
}

/* ===== 章节通用标题 ===== */
.page-faq .section-head {
  display: grid;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
}

.page-faq .section-head .chapter-num {
  font-family: var(--font-data);
  font-size: 0.9rem;
  color: var(--color-orange);
  letter-spacing: 0.05em;
}

.page-faq .section-head h2 {
  font-size: 2rem;
  font-weight: 900;
  margin: 0;
  line-height: 1.3;
}

.page-faq .section-head-text p {
  margin: 0.25rem 0 0;
  color: var(--color-fog);
  line-height: 1.7;
}

/* ===== 三步操作指引 ===== */
.page-faq .faq-steps-section {
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.page-faq .faq-steps {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.page-faq .faq-step-card {
  background: var(--color-ink-2);
  border: var(--faq-border-w) solid var(--color-line);
  box-shadow: var(--shadow);
  padding: var(--space-3);
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-step-card::after {
  content: attr(data-step);
  position: absolute;
  top: -0.6rem;
  right: 1rem;
  font-family: var(--font-data);
  font-size: 4.5rem;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-line);
  opacity: 0.5;
  pointer-events: none;
}

.page-faq .faq-step-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-orange);
}

.page-faq .faq-step-num {
  display: block;
  font-family: var(--font-data);
  font-size: 2.2rem;
  line-height: 1;
  color: var(--color-orange);
  margin-bottom: var(--space-2);
}

.page-faq .faq-step-card h3 {
  font-size: 1.3rem;
  font-weight: 900;
  margin: 0 0 0.5rem;
}

.page-faq .faq-step-card p {
  color: var(--color-fog);
  font-size: 0.92rem;
  line-height: 1.7;
  margin: 0;
}

.page-faq .faq-step-arrow {
  color: var(--color-lime);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0.35rem 0;
}

.page-faq .faq-step-arrow svg {
  transform: rotate(90deg);
}

.page-faq .faq-steps-media {
  margin-top: var(--space-3);
}

.page-faq .faq-steps-media img {
  display: block;
  width: 100%;
  max-width: 800px;
  height: auto;
  border: var(--faq-border-w) solid var(--color-line);
  box-shadow: var(--shadow);
  margin-inline: auto;
}

/* ===== 问题列表区 ===== */
.page-faq .faq-list-section {
  position: relative;
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
  background:
    linear-gradient(115deg,
      rgba(255, 107, 44, 0.04) 0%, transparent 30%,
      rgba(232, 241, 77, 0.03) 65%, transparent 100%);
}

.page-faq .faq-list-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--grad-orange);
  opacity: 0.8;
}

.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: var(--space-2);
}

.page-faq .filter-btn {
  flex: 0 0 auto;
  background: transparent;
  border: var(--faq-border-w) solid var(--color-line);
  color: var(--color-fog);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.55rem 1.1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  letter-spacing: 0.04em;
}

.page-faq .filter-btn:hover {
  border-color: var(--color-orange);
  color: var(--color-paper);
}

.page-faq .filter-btn.is-active {
  background: var(--color-orange);
  border-color: var(--color-orange);
  color: var(--color-ink);
  box-shadow: 0 0 0 3px rgba(255, 107, 44, 0.25);
}

.page-faq .faq-layout {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.page-faq .faq-mobile-frame {
  position: relative;
  border: var(--faq-border-w) solid var(--color-line);
  box-shadow: var(--shadow);
  overflow: hidden;
  transform: skewX(1deg);
  background: var(--color-ink-2);
}

.page-faq .faq-mobile-frame img {
  display: block;
  width: 100%;
  max-width: 600px;
  height: auto;
  margin-inline: auto;
}

.page-faq .faq-mobile-caption {
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--color-fog);
  background: var(--color-ink-2);
  padding: 0.75rem 1rem;
  margin: 0;
  border-top: var(--faq-border-w) solid var(--color-line);
  text-align: center;
}

.page-faq .faq-mobile-note {
  padding: var(--space-1);
}

.page-faq .faq-mobile-note .coord {
  color: var(--color-lime);
}

.page-faq .faq-mobile-note h3 {
  font-size: 1.5rem;
  font-weight: 900;
  margin: var(--space-1) 0 0.5rem;
}

.page-faq .faq-mobile-note p {
  color: var(--color-fog);
  line-height: 1.75;
  font-size: 0.95rem;
  margin: 0;
}

.page-faq .faq-learn-link {
  display: inline-block;
  color: var(--color-lime);
  text-decoration: none;
  font-weight: 700;
  margin-top: var(--space-1);
  border-bottom: 2px solid rgba(232, 241, 77, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-learn-link:hover {
  color: var(--color-orange);
  border-bottom-color: var(--color-orange);
}

/* ===== 问题卡片折叠列表 ===== */
.page-faq .faq-questions-list {
  display: grid;
  gap: 1rem;
}

.page-faq .faq-question {
  background: var(--color-ink-2);
  border: var(--faq-border-w) solid var(--color-line);
  box-shadow: var(--shadow);
  position: relative;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.page-faq .faq-question:hover {
  border-color: var(--color-orange);
  transform: translateY(-2px) rotate(-0.3deg);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.45);
}

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

.page-faq .faq-question summary {
  display: flex;
  gap: 1rem;
  align-items: center;
  padding: 1.25rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-faq .faq-q-num {
  font-family: var(--font-data);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-orange);
  min-width: 2rem;
  padding-right: 1rem;
  border-right: var(--faq-border-w) solid var(--color-line);
}

.page-faq .faq-q-title {
  flex: 1;
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.4;
  min-width: 0;
}

.page-faq .faq-q-icon {
  font-family: var(--font-data);
  font-size: 1.1rem;
  color: var(--color-lime);
  line-height: 1;
  transition: transform 0.3s ease;
  flex: 0 0 auto;
}

.page-faq .faq-question[open] .faq-q-icon {
  transform: rotate(45deg);
}

.page-faq .faq-answer {
  padding: 1rem 1.25rem 1.25rem calc(4rem);
  color: var(--color-fog);
  font-size: 0.92rem;
  line-height: 1.75;
  border-top: 1px dashed var(--color-line);
  animation: faq-answer-in 0.25s ease;
}

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

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== 联系补充渠道 ===== */
.page-faq .faq-contact-section {
  padding-top: var(--space-4);
  padding-bottom: var(--space-5);
}

.page-faq .faq-contact-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  background: var(--grad-ink);
  border: var(--faq-border-w) solid var(--color-line);
  border-left: 4px solid var(--color-orange);
  padding: var(--space-4) var(--space-3);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-contact-card::after {
  content: "FAQ / 8868";
  position: absolute;
  right: -1.5rem;
  bottom: -1rem;
  font-family: var(--font-data);
  font-size: 4.5rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-line);
  opacity: 0.45;
  pointer-events: none;
  white-space: nowrap;
}

.page-faq .faq-contact-text .chapter-num {
  font-family: var(--font-data);
  color: var(--color-orange);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

.page-faq .faq-contact-text h2 {
  font-size: 1.8rem;
  font-weight: 900;
  margin: 0.25rem 0 0.5rem;
}

.page-faq .faq-contact-text p {
  color: var(--color-fog);
  margin: 0;
  line-height: 1.7;
}

.page-faq .faq-contact-card .btn-primary {
  background: var(--grad-orange);
  border: none;
  color: var(--color-ink);
  font-weight: 900;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 8px 24px rgba(255, 107, 44, 0.3);
  align-self: flex-start;
  white-space: nowrap;
}

.page-faq .faq-contact-card .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(255, 107, 44, 0.42);
}

/* ===== 桌面端布局 ===== */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-top: calc(var(--header-h) + 4rem);
    padding-bottom: var(--space-5);
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    gap: var(--space-4);
    align-items: center;
  }

  .page-faq .faq-hero-main {
    padding-right: var(--space-3);
  }

  .page-faq .faq-hero-title {
    font-size: 3.4rem;
  }

  .page-faq .faq-steps {
    grid-template-columns: minmax(0, 1fr) 56px minmax(0, 1fr) 56px minmax(0, 1fr);
    align-items: center;
  }

  .page-faq .faq-step-card {
    min-height: 220px;
  }

  .page-faq .faq-step-arrow {
    padding: 0;
  }

  .page-faq .faq-step-arrow svg {
    transform: rotate(0deg);
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 2.15fr);
    gap: var(--space-4);
    align-items: start;
  }

  .page-faq .faq-mobile-frame {
    position: sticky;
    top: calc(var(--header-h) + 2rem);
  }

  .page-faq .faq-questions-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .page-faq .faq-contact-card {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
  }

  .page-faq .faq-contact-card .btn-primary {
    align-self: auto;
    margin-left: var(--space-3);
  }
}