.page-faq {
  --faq-line: rgba(100, 255, 218, 0.12);
  --faq-line-strong: rgba(100, 255, 218, 0.28);
  --faq-orange-soft: rgba(255, 122, 0, 0.12);
  --faq-grid: rgba(100, 255, 218, 0.05);
  background: var(--x-bg-dark);
  color: var(--x-text-light);
  font-family: var(--x-font-body);
  line-height: 1.6;
}

/* ===== Hero 首屏 ===== */
.page-faq .faq-hero {
  position: relative;
  padding: 2.5rem 0 3rem;
  border-bottom: 1px solid var(--x-line-grid);
  background:
    linear-gradient(115deg, rgba(17, 34, 64, 0.32) 0%, transparent 55%),
    repeating-linear-gradient(90deg, var(--faq-grid) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, var(--faq-grid) 0 1px, transparent 1px 72px),
    var(--x-deep-blue);
  overflow: hidden;
}
.page-faq .faq-hero::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -3%;
  width: 48%;
  height: 220%;
  background: linear-gradient(160deg, transparent 0%, transparent 38%, rgba(255, 122, 0, 0.09) 45%, rgba(255, 122, 0, 0.04) 50%, transparent 55%);
  transform: rotate(18deg);
  pointer-events: none;
}
.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
.page-faq .faq-hero__main {
  position: relative;
}
.page-faq .faq-hero__main::after {
  content: 'FAQ';
  position: absolute;
  right: -0.04em;
  bottom: -0.18em;
  font-family: var(--x-font-mono);
  font-size: clamp(4rem, 10vw, 7rem);
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(100, 255, 218, 0.16);
  white-space: nowrap;
  pointer-events: none;
  z-index: 0;
}
.page-faq .faq-hero__title {
  position: relative;
  z-index: 1;
  margin: 0.9rem 0 0.75rem;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.08;
  color: var(--x-text-light);
}
.page-faq .faq-hero__lead {
  position: relative;
  z-index: 1;
  max-width: 44rem;
  margin: 0;
  font-size: 1rem;
  color: rgba(226, 232, 240, 0.78);
  line-height: 1.7;
}
.page-faq .faq-hero__aside {
  position: relative;
  z-index: 1;
  padding: 1.5rem;
  background: rgba(10, 25, 47, 0.62);
  border: 1px solid var(--x-line-grid);
  border-radius: var(--x-radius);
}
.page-faq .faq-search__label {
  display: block;
  margin-bottom: 0.55rem;
  font-family: var(--x-font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--x-neon-green);
}
.page-faq .faq-search__box {
  position: relative;
}
.page-faq .faq-search__input {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.8rem;
  background: rgba(10, 25, 47, 0.8);
  border: 1px solid var(--x-line-grid);
  border-radius: var(--x-radius);
  color: var(--x-text-light);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.page-faq .faq-search__input:focus {
  border-color: var(--x-neon-green);
  box-shadow: 0 0 0 3px rgba(100, 255, 218, 0.15);
}
.page-faq .faq-search__input::placeholder {
  color: rgba(226, 232, 240, 0.35);
}
.page-faq .faq-search__icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  width: 14px;
  height: 14px;
  border: 2px solid var(--x-neon-green);
  border-radius: 50%;
  transform: translateY(-60%);
  pointer-events: none;
}
.page-faq .faq-search__icon::after {
  content: '';
  position: absolute;
  right: -6px;
  bottom: -3px;
  width: 7px;
  height: 2px;
  background: var(--x-neon-green);
  border-radius: 2px;
  transform: rotate(45deg);
}
.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}
.page-faq .faq-tag {
  display: inline-block;
  padding: 0.3rem 0.7rem;
  font-family: var(--x-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--x-neon-green);
  background: rgba(100, 255, 218, 0.06);
  border: 1px solid rgba(100, 255, 218, 0.18);
  border-radius: 99px;
}

/* ===== 主体布局 ===== */
.page-faq .faq-main {
  padding: 3rem 0 4rem;
}
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

/* ===== 侧边分类 ===== */
.page-faq .faq-sidebar__inner {
  padding: 1.5rem 1.4rem;
  background: linear-gradient(165deg, rgba(17, 34, 64, 0.92), rgba(10, 25, 47, 0.92));
  border: 1px solid var(--x-line-grid);
  border-radius: var(--x-radius);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
}
.page-faq .faq-sidebar__title {
  margin: 0.6rem 0 0;
  font-size: 1.1rem;
  font-weight: 800;
}
.page-faq .faq-sidebar__list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-faq .faq-sidebar__list li {
  flex-shrink: 0;
}
.page-faq .faq-sidebar__list .hb-chapter-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.85rem;
  color: rgba(226, 232, 240, 0.82);
  font-size: 0.92rem;
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: 0 6px 6px 0;
  white-space: nowrap;
  transition: background 0.25s, border-color 0.25s, color 0.25s;
}
.page-faq .faq-sidebar__list .hb-chapter-link:hover {
  color: var(--x-neon-green);
  background: rgba(100, 255, 218, 0.04);
}
.page-faq .faq-sidebar__list .hb-chapter-link.is-current {
  color: var(--x-neon-green);
  border-left-color: var(--x-neon-green);
  background: rgba(100, 255, 218, 0.07);
}
.page-faq .faq-sidebar__support {
  margin-top: 1.5rem;
  padding: 1.2rem 1rem;
  background: rgba(100, 255, 218, 0.04);
  border: 1px dashed rgba(100, 255, 218, 0.18);
  border-radius: 8px;
}
.page-faq .faq-sidebar__support .hb-coord {
  margin-bottom: 0.4rem;
}
.page-faq .faq-sidebar__support-hours {
  margin: 0.4rem 0 0.9rem;
  font-size: 0.88rem;
  line-height: 1.6;
  color: rgba(226, 232, 240, 0.75);
}

/* ===== 章节 ===== */
.page-faq .faq-chapter {
  padding-top: 0.5rem;
}
.page-faq .faq-chapter + .faq-chapter {
  margin-top: 3.5rem;
  padding-top: 3.5rem;
  border-top: 1px solid var(--x-line-grid);
}
.page-faq .faq-chapter__head {
  position: relative;
  padding-left: 1.1rem;
  border-left: 3px solid var(--x-orange);
}
.page-faq .faq-chapter__head .hb-coord {
  display: inline-block;
  margin-bottom: 0.4rem;
}
.page-faq .faq-chapter__title {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: -0.01em;
}
.page-faq .faq-chapter__desc {
  margin: 0.35rem 0 0;
  font-size: 0.9rem;
  color: rgba(226, 232, 240, 0.65);
}

/* ===== 折叠面板 ===== */
.page-faq .faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.75rem;
}
.page-faq .faq-item {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.7), rgba(17, 34, 64, 0.55));
  border: 1px solid var(--x-line-grid);
  border-left: 3px solid var(--x-card);
  border-radius: 0 var(--x-radius) var(--x-radius) 0;
  transition: border-color 0.3s, background 0.3s;
}
.page-faq .faq-item[open] {
  border-left-color: var(--x-orange);
  background: linear-gradient(135deg, rgba(17, 34, 64, 0.9), rgba(10, 25, 47, 0.8));
}
.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 1.25rem;
  transition: background 0.25s;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary:hover {
  background: rgba(100, 255, 218, 0.03);
}
.page-faq .faq-item[open] summary {
  padding-bottom: 0.9rem;
}
.page-faq .faq-item__index {
  flex-shrink: 0;
  padding: 0.2rem 0.5rem;
  font-family: var(--x-font-mono);
  font-size: 0.8rem;
  color: var(--x-neon-green);
  background: rgba(100, 255, 218, 0.08);
  border-radius: 4px;
}
.page-faq .faq-item__q {
  flex: 1;
  font-size: 1rem;
  font-weight: 700;
  color: var(--x-text-light);
}
.page-faq .faq-item__icon {
  position: relative;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}
.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--x-neon-green);
  transition: transform 0.25s;
}
.page-faq .faq-item__icon::before {
  width: 18px;
  height: 2px;
  transform: translate(-50%, -50%);
}
.page-faq .faq-item__icon::after {
  width: 2px;
  height: 18px;
  transform: translate(-50%, -50%);
}
.page-faq .faq-item[open] .faq-item__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
}
.page-faq .faq-item__a {
  padding: 1rem 1.25rem 1.35rem 2.2rem;
  border-top: 1px dashed var(--faq-line);
  font-size: 0.95rem;
  line-height: 1.75;
  color: rgba(226, 232, 240, 0.85);
}
.page-faq .faq-item__a p {
  margin: 0 0 0.85rem;
}
.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-item__a .hb-btn {
  margin-top: 0.6rem;
}
.page-faq .faq-steps {
  counter-reset: faq-step;
  margin: 0.9rem 0;
  padding: 0 0 0 1.4rem;
  list-style: none;
}
.page-faq .faq-steps li {
  counter-increment: faq-step;
  position: relative;
  margin-bottom: 0.6rem;
  padding-left: 0.4rem;
}
.page-faq .faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: -1.4rem;
  top: 0.05rem;
  font-family: var(--x-font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--x-orange);
}
.page-faq .faq-alert {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  background: rgba(100, 255, 218, 0.07);
  border: 1px solid rgba(100, 255, 218, 0.22);
  border-left: 3px solid var(--x-neon-green);
  border-radius: 0 8px 8px 0;
  font-size: 0.9rem;
}
.page-faq .faq-alert .hb-coord {
  white-space: nowrap;
}
.page-faq .faq-alert p {
  margin: 0;
  line-height: 1.6;
}

/* ===== 图文分栏 ===== */
.page-faq .faq-chapter__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: start;
  margin-top: 1.75rem;
}
.page-faq .faq-phone-fig,
.page-faq .faq-flow-fig {
  margin: 0;
  padding: 1rem 1rem 0.8rem;
  background: linear-gradient(160deg, rgba(17, 34, 64, 0.8), rgba(10, 25, 47, 0.9));
  border: 1px solid var(--x-line-grid);
  border-radius: var(--x-radius);
}
.page-faq .faq-phone-img {
  display: block;
  width: 100%;
  max-width: 260px;
  height: auto;
  object-fit: cover;
  border-radius: 8px;
  margin: 0 auto;
}
.page-faq .faq-flow-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 8px;
}
.page-faq .faq-fig__caption {
  padding-top: 0.6rem;
  text-align: center;
  font-family: var(--x-font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: rgba(226, 232, 240, 0.65);
}

/* ===== 联系客服 ===== */
.page-faq .faq-contact {
  padding: 3.5rem 0 4rem;
  background: linear-gradient(180deg, var(--x-bg-dark) 0%, rgba(10, 25, 47, 0.96) 100%);
  border-top: 1px solid var(--x-line-grid);
}
.page-faq .faq-contact__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 2rem 1.5rem;
  background: linear-gradient(140deg, rgba(17, 34, 64, 0.92), rgba(10, 25, 47, 0.85));
  border: 1px solid var(--x-line-grid);
  border-top: 3px solid var(--x-orange);
  border-radius: var(--x-radius);
  overflow: hidden;
}
.page-faq .faq-contact__intro .hb-coord {
  display: inline-block;
  margin-bottom: 0.6rem;
}
.page-faq .faq-contact__title {
  margin: 0 0 0.6rem;
  font-size: 1.75rem;
  font-weight: 900;
  letter-spacing: -0.02em;
}
.page-faq .faq-contact__desc {
  margin: 0 0 1.4rem;
  font-size: 0.95rem;
  line-height: 1.75;
  color: rgba(226, 232, 240, 0.75);
}
.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
}
.page-faq .faq-contact__card {
  padding: 1.1rem 1.2rem;
  background: rgba(10, 25, 47, 0.6);
  border: 1px solid var(--x-line-grid);
  border-radius: 8px;
  transition: border-color 0.25s, transform 0.25s;
}
.page-faq .faq-contact__card:hover {
  border-color: var(--x-neon-green);
  transform: translateY(-3px);
}
.page-faq .faq-contact__label {
  display: block;
  margin-bottom: 0.4rem;
  font-family: var(--x-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--x-neon-green);
}
.page-faq .faq-contact__value {
  font-size: 0.94rem;
  line-height: 1.5;
  color: var(--x-text-light);
  word-break: break-word;
}
.page-faq .faq-contact__value a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
.page-faq .faq-contact__value a:hover {
  color: var(--x-neon-green);
  border-color: var(--x-neon-green);
}

/* ===== 响应式 ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: end;
  }
  .page-faq .faq-sidebar__list {
    flex-direction: column;
    gap: 0.25rem;
    overflow-x: visible;
  }
  .page-faq .faq-sidebar__list .hb-chapter-link {
    width: 100%;
    padding: 0.68rem 0.9rem;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-chapter__split {
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 2.5rem;
  }
  .page-faq .faq-chapter__split--reverse {
    grid-template-columns: 330px minmax(0, 1fr);
  }
  .page-faq .faq-chapter__split--reverse .faq-chapter__text {
    order: 2;
  }
  .page-faq .faq-chapter__split--reverse .faq-flow-fig {
    order: 1;
  }
  .page-faq .faq-contact__panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    gap: 3rem;
    padding: 2.5rem 3rem;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 3rem;
  }
  .page-faq .faq-sidebar__inner {
    position: sticky;
    top: 88px;
  }
}