/* ===== 帮助中心页 ===== */
.page-faq {
  --faq-answer: #4B5563;
  --faq-card-bg: #F8F9FA;
  --faq-line: rgba(29, 53, 87, .12);
  --faq-radius: 18px;
  background: #FFFFFF;
}

/* ---------- Hero ---------- */
.page-faq__hero {
  position: relative;
  background: #0B132B;
  color: #FFFFFF;
  padding: 128px 0 56px;
  overflow: hidden;
}
.page-faq__hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(69, 123, 157, .14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(69, 123, 157, .14) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(circle at 72% 45%, #000, transparent 78%);
  mask-image: radial-gradient(circle at 72% 45%, #000, transparent 78%);
  pointer-events: none;
}
.page-faq__hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 40px;
  align-items: center;
}
.page-faq__hero-copy {
  max-width: 640px;
}
.page-faq__hero .breadcrumb {
  margin-bottom: 24px;
  color: rgba(255, 255, 255, .6);
}
.page-faq__hero .breadcrumb__link {
  color: rgba(255, 255, 255, .75);
  text-decoration: none;
  transition: color .25s ease;
}
.page-faq__hero .breadcrumb__link:hover {
  color: #FFD700;
}
.page-faq__hero-eyebrow {
  color: #FFD700;
  border-color: rgba(255, 215, 0, .4);
}
.page-faq__hero-title {
  margin: 14px 0 20px;
  font-family: var(--font-head);
  line-height: 1.08;
  letter-spacing: .01em;
  text-transform: uppercase;
  color: #FFFFFF;
}
.page-faq__hero-title-row {
  display: block;
  font-size: clamp(30px, 5.6vw, 54px);
}
.page-faq__hero-title-sub {
  display: inline-block;
  margin-top: 6px;
  font-size: clamp(18px, 2.6vw, 28px);
  font-weight: 400;
  color: #FFD700;
  letter-spacing: 0;
}
.page-faq__hero-lead {
  max-width: 560px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .76);
}
.page-faq__hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin: 24px 0 28px;
  padding: 0;
  list-style: none;
}
.page-faq__hero-stats li {
  display: flex;
  align-items: baseline;
  gap: 7px;
}
.page-faq__hero-stats strong {
  font-family: var(--font-data);
  font-size: 26px;
  color: #FFD700;
}
.page-faq__hero-stats span {
  font-size: 13px;
  color: rgba(255, 255, 255, .6);
}
.page-faq__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-faq__hero-media {
  position: relative;
  margin: 0;
  border-radius: var(--faq-radius);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .35);
  transform: rotate(1.2deg);
}
.page-faq__hero-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  min-height: 220px;
}
.page-faq__hero-caption {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(11, 19, 43, .72);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  font-size: 12px;
  color: #FFFFFF;
  letter-spacing: .04em;
}
.page-faq__hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .45;
  pointer-events: none;
}
.page-faq__hero-glow--a {
  width: 320px;
  height: 320px;
  top: -80px;
  right: -60px;
  background: radial-gradient(circle, rgba(230, 57, 70, .5), transparent 70%);
}
.page-faq__hero-glow--b {
  width: 260px;
  height: 260px;
  bottom: -100px;
  left: 20%;
  background: radial-gradient(circle, rgba(69, 123, 157, .42), transparent 70%);
}

/* ---------- 目录 ---------- */
.page-faq__toc {
  position: relative;
  background: #F8F9FA;
  padding: 48px 0 16px;
  border-bottom: 1px solid var(--faq-line);
}
.page-faq__toc-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 24px;
}
.page-faq__toc-head .eyebrow {
  color: #E63946;
}
.page-faq__toc-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 22px;
  text-transform: uppercase;
  color: #1D3557;
}
.page-faq__toc-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding-bottom: 18px;
}
.page-faq__toc-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 16px 14px;
  border: 1px solid transparent;
  border-radius: 16px;
  text-decoration: none;
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.page-faq__toc-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(11, 19, 43, .1);
}
.page-faq__toc-card--fire {
  background: linear-gradient(135deg, rgba(230, 57, 70, .12), rgba(193, 18, 31, .05));
  border-color: rgba(230, 57, 70, .22);
}
.page-faq__toc-card--navy {
  background: linear-gradient(135deg, rgba(29, 53, 87, .1), rgba(69, 123, 157, .05));
  border-color: rgba(29, 53, 87, .2);
}
.page-faq__toc-card--tech {
  background: linear-gradient(135deg, rgba(69, 123, 157, .12), rgba(29, 53, 87, .05));
  border-color: rgba(69, 123, 157, .24);
}
.page-faq__toc-card--gold {
  background: linear-gradient(135deg, rgba(255, 215, 0, .14), rgba(230, 57, 70, .04));
  border-color: rgba(255, 215, 0, .35);
}
.page-faq__toc-card--ghost {
  background: #FFFFFF;
  border-color: rgba(193, 18, 31, .28);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .5);
}
.page-faq__toc-code {
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  color: #457B9D;
}
.page-faq__toc-card--fire .page-faq__toc-code { color: #E63946; }
.page-faq__toc-card--gold .page-faq__toc-code { color: #C1121F; }
.page-faq__toc-card--ghost .page-faq__toc-code { color: #C1121F; }
.page-faq__toc-name {
  font-family: var(--font-head);
  font-size: 17px;
  line-height: 1.2;
  color: #1D3557;
  text-transform: uppercase;
}
.page-faq__toc-desc {
  font-size: 12px;
  color: #6B7280;
  line-height: 1.4;
}
.page-faq__toc-go {
  margin-top: 8px;
  font-size: 12px;
  font-weight: 600;
  color: #457B9D;
}
.page-faq__toc-card--fire .page-faq__toc-go { color: #E63946; }
.page-faq__toc-card--gold .page-faq__toc-go { color: #C1121F; }
.page-faq__toc-card--ghost .page-faq__toc-go { color: #C1121F; }

/* ---------- 筛选栏 ---------- */
.page-faq__sticky {
  position: sticky;
  top: calc(var(--header-h) + 8px);
  z-index: 40;
  background: rgba(255, 255, 255, .88);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(29, 53, 87, .08);
  padding: 12px 0;
}
.page-faq__filters {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.page-faq__filters::-webkit-scrollbar {
  display: none;
}
.page-faq__filters .filter-btn {
  flex-shrink: 0;
  border: 1px solid rgba(29, 53, 87, .16);
  background: #FFFFFF;
  color: #1D3557;
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background .25s ease, color .25s ease, border-color .25s ease, transform .2s ease;
}
.page-faq__filters .filter-btn:hover {
  border-color: #E63946;
  color: #E63946;
  transform: translateY(-1px);
}
.page-faq__filters .filter-btn[aria-pressed="true"] {
  background: #E63946;
  border-color: #E63946;
  color: #FFFFFF;
  box-shadow: 0 6px 18px rgba(230, 57, 70, .24);
}

/* ---------- 内容分区 ---------- */
.page-faq__content {
  background: #FFFFFF;
}
.page-faq__section {
  padding: 52px 0 20px;
}
.page-faq__section--schedule {
  padding-top: 60px;
}
.page-faq__section--map {
  background: linear-gradient(180deg, #F8F9FA 0%, #FFFFFF 100%);
}
.page-faq__section--account {
  background: linear-gradient(180deg, #FFFFFF 0%, #F8F9FA 100%);
}
.page-faq__section--terms {
  background: linear-gradient(180deg, #F8F9FA 0%, #FFFFFF 100%);
}
.page-faq__section--contact {
  background: #FFFFFF;
}
.page-faq__section-head {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 28px;
}
.page-faq__section-code {
  font-family: var(--font-data);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: #E63946;
  opacity: .6;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}
.page-faq__section--map .page-faq__section-code { color: #457B9D; }
.page-faq__section--account .page-faq__section-code { color: #1D3557; }
.page-faq__section--terms .page-faq__section-code { color: #FFD700; }
.page-faq__section--contact .page-faq__section-code { color: #C1121F; }
.page-faq__section-title {
  flex: 1;
}
.page-faq__section-title .eyebrow {
  color: #457B9D;
}
.page-faq__section--schedule .page-faq__section-title .eyebrow { color: #E63946; }
.page-faq__section--terms .page-faq__section-title .eyebrow { color: #C1121F; }
.page-faq__section-title h2 {
  margin: 6px 0 4px;
  font-family: var(--font-head);
  font-size: 28px;
  line-height: 1.1;
  text-transform: uppercase;
  color: #1D3557;
}
.page-faq__section-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: #6B7280;
}
.page-faq__section-more {
  display: none;
  flex-shrink: 0;
  padding: 8px 16px;
  border: 1px solid rgba(29, 53, 87, .18);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: #1D3557;
  text-decoration: none;
  transition: border-color .25s ease, color .25s ease;
}
.page-faq__section-more:hover {
  border-color: #E63946;
  color: #E63946;
}

/* ---------- FAQ 折叠面板 ---------- */
.page-faq__items {
  display: grid;
  gap: 12px;
}
.page-faq__item {
  border-radius: 16px;
  background: #F8F9FA;
  border: 1px solid rgba(29, 53, 87, .08);
  transition: border-color .3s ease, box-shadow .3s ease;
}
.page-faq__item[open] {
  border-color: rgba(230, 57, 70, .24);
  box-shadow: 0 8px 24px rgba(11, 19, 43, .06);
}
.page-faq__item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
  -webkit-tap-highlight-color: transparent;
}
.page-faq__item summary::-webkit-details-marker {
  display: none;
}
.page-faq__item summary::marker {
  content: none;
  display: none;
}
.page-faq__item-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  padding: 8px;
  border-radius: 10px;
  color: #E63946;
  background: rgba(230, 57, 70, .1);
}
.page-faq__section--map .page-faq__item-icon {
  color: #457B9D;
  background: rgba(69, 123, 157, .12);
}
.page-faq__section--account .page-faq__item-icon {
  color: #1D3557;
  background: rgba(29, 53, 87, .1);
}
.page-faq__section--terms .page-faq__item-icon {
  color: #C1121F;
  background: rgba(255, 215, 0, .16);
}
.page-faq__section--contact .page-faq__item-icon {
  color: #C1121F;
  background: rgba(193, 18, 31, .1);
}
.page-faq__item-question {
  flex: 1;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  color: #1D3557;
  transition: color .25s ease;
}
.page-faq__item[open] .page-faq__item-question {
  color: #E63946;
}
.page-faq__section--map .page-faq__item[open] .page-faq__item-question { color: #457B9D; }
.page-faq__section--account .page-faq__item[open] .page-faq__item-question { color: #1D3557; }
.page-faq__section--terms .page-faq__item[open] .page-faq__item-question { color: #C1121F; }
.page-faq__section--contact .page-faq__item[open] .page-faq__item-question { color: #C1121F; }
.page-faq__item-toggle {
  position: relative;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}
.page-faq__item-toggle::before,
.page-faq__item-toggle::after {
  content: "";
  position: absolute;
  background: #457B9D;
  border-radius: 1px;
  transition: transform .28s ease, background .28s ease;
}
.page-faq__item-toggle::before {
  width: 12px;
  height: 2px;
  top: 9px;
  left: 4px;
}
.page-faq__item-toggle::after {
  width: 2px;
  height: 12px;
  top: 4px;
  left: 9px;
}
.page-faq__item[open] .page-faq__item-toggle::after {
  transform: scaleY(0);
}
.page-faq__section--map .page-faq__item-toggle::before,
.page-faq__section--map .page-faq__item-toggle::after { background: #457B9D; }
.page-faq__section--account .page-faq__item-toggle::before,
.page-faq__section--account .page-faq__item-toggle::after { background: #1D3557; }
.page-faq__section--terms .page-faq__item-toggle::before,
.page-faq__section--terms .page-faq__item-toggle::after { background: #C1121F; }
.page-faq__section--contact .page-faq__item-toggle::before,
.page-faq__section--contact .page-faq__item-toggle::after { background: #C1121F; }
.page-faq__item-answer {
  padding: 0 16px 18px 64px;
}
.page-faq__item-answer p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #4B5563;
}
.page-faq__item-answer a {
  color: #E63946;
  text-decoration: none;
  border-bottom: 1px solid rgba(230, 57, 70, .3);
  transition: border-color .2s ease;
}
.page-faq__item-answer a:hover {
  border-color: #E63946;
}
@keyframes page-faq-fade-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.page-faq__item[open] .page-faq__item-answer {
  animation: page-faq-fade-in .3s ease both;
}

/* ---------- 联系面板 ---------- */
.page-faq__contact-panel {
  display: grid;
  gap: 20px;
  margin: 40px 0 36px;
  border-radius: 22px;
  background: linear-gradient(135deg, #1D3557, #0B132B);
  padding: 24px;
  overflow: hidden;
  box-shadow: 0 18px 44px rgba(11, 19, 43, .22);
}
.page-faq__contact-media {
  border-radius: 16px;
  overflow: hidden;
}
.page-faq__contact-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  min-height: 180px;
}
.page-faq__contact-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  color: #FFFFFF;
}
.page-faq__contact-info .eyebrow {
  color: #FFD700;
  border-color: rgba(255, 215, 0, .4);
}
.page-faq__contact-info h3 {
  margin: 10px 0 8px;
  font-family: var(--font-head);
  font-size: 22px;
  text-transform: uppercase;
  color: #FFFFFF;
}
.page-faq__contact-info > p {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, .72);
}
.page-faq__contact-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-faq__contact-list li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.5;
  color: rgba(255, 255, 255, .86);
}
.page-faq__contact-list li span {
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .08em;
  color: #FFD700;
  text-transform: uppercase;
}
.page-faq__contact-list a {
  color: #FFFFFF;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, .28);
  transition: border-color .2s ease;
}
.page-faq__contact-list a:hover {
  border-color: #FFD700;
}

/* ---------- 响应式增强 ---------- */
@media (min-width: 768px) {
  .page-faq__hero {
    padding: 152px 0 72px;
  }
  .page-faq__hero-lead {
    font-size: 16px;
  }
  .page-faq__toc {
    padding-top: 56px;
  }
  .page-faq__toc-grid {
    grid-template-columns: repeat(5, 1fr);
  }
  .page-faq__toc-card {
    min-height: 184px;
  }
  .page-faq__section {
    padding: 64px 0 32px;
  }
  .page-faq__items {
    gap: 14px;
  }
  .page-faq__item summary {
    padding: 20px 22px;
  }
  .page-faq__item-question {
    font-size: 15px;
  }
  .page-faq__item-answer {
    padding-left: 78px;
  }
  .page-faq__item-answer p {
    font-size: 15px;
  }
  .page-faq__section-more {
    display: inline-flex;
  }
  .page-faq__contact-panel {
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
    padding: 28px;
  }
}

@media (min-width: 992px) {
  .page-faq__hero-grid {
    grid-template-columns: 1.02fr .98fr;
    gap: 64px;
  }
  .page-faq__hero-copy {
    padding: 24px 0;
  }
  .page-faq__section {
    padding: 76px 0 40px;
  }
  .page-faq__section-head {
    margin-bottom: 36px;
  }
  .page-faq__section-title h2 {
    font-size: 32px;
  }
  .page-faq__items {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq__contact-panel {
    margin-top: 48px;
  }
  .page-faq__contact-info {
    padding: 16px 28px 12px 8px;
  }
}

@media (min-width: 1200px) {
  .page-faq__hero {
    padding: 160px 0 88px;
  }
  .page-faq__hero-stats strong {
    font-size: 30px;
  }
  .page-faq__section {
    padding: 84px 0 48px;
  }
}