.page-faq {
  --faq-base: #0A1F44;
  --faq-base-2: #0D2A5E;
  --faq-base-3: #1E3A8A;
  --faq-green: #39FF14;
  --faq-orange: #FF6B00;
  --faq-ice: #F8FAFC;
  --faq-light: #E5E7EB;
  --faq-gray: #6B7280;
  --faq-dark: #111827;
  --faq-white: #FFFFFF;
  --faq-radius: 4px;
  --faq-slant: -5deg;
  background: var(--faq-ice);
  color: var(--faq-dark);
}

/* ===== 页头 ===== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 64px 0 56px;
  background: linear-gradient(135deg, var(--faq-base) 0%, var(--faq-base-2) 55%, var(--faq-base-3) 100%);
  color: var(--faq-white);
}
.page-faq .faq-hero__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.26;
  z-index: 0;
}
.page-faq .faq-hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  background: linear-gradient(100deg, var(--faq-base) 0%, rgba(10, 31, 68, 0.76) 48%, rgba(30, 58, 138, 0.28) 100%);
}
.page-faq .faq-hero__slice {
  position: absolute;
  bottom: -2px;
  left: -5%;
  width: 110%;
  height: 24px;
  background: var(--faq-ice);
  transform: rotate(-1.2deg);
  z-index: 2;
}
.page-faq .faq-hero__inner {
  position: relative;
  z-index: 3;
}
.page-faq .faq-hero .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}
.page-faq .faq-hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-faq .faq-hero .breadcrumb a:hover {
  color: var(--faq-green);
}
.page-faq .faq-hero .breadcrumb-sep {
  opacity: 0.5;
}
.page-faq .faq-hero__content {
  max-width: 760px;
}
.page-faq .faq-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  margin-bottom: 16px;
  padding: 4px 12px;
  background: rgba(57, 255, 20, 0.12);
  border-left: 3px solid var(--faq-green);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--faq-green);
  font-weight: 700;
}
.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  font-size: 32px;
  line-height: 1.15;
  font-family: var(--font-display);
  color: var(--faq-white);
}
.page-faq .faq-hero__desc {
  margin: 0 0 28px;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.82);
  max-width: 640px;
}
.page-faq .faq-searchbox {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--faq-radius);
  padding: 6px 8px 6px 16px;
  max-width: 560px;
  backdrop-filter: blur(8px);
}
.page-faq .faq-searchbox__icon {
  font-size: 20px;
  color: var(--faq-green);
}
.page-faq .faq-searchbox__field {
  flex: 1;
  min-width: 0;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.78);
}
.page-faq .faq-searchbox__key {
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 3px;
  padding: 2px 8px;
  white-space: nowrap;
}

/* ===== 通用版块 ===== */
.page-faq .faq-guide,
.page-faq .faq-qa,
.page-faq .faq-contact {
  padding: 56px 0;
}
.page-faq .section-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 36px;
}
.page-faq .section-num {
  font-family: var(--font-mono);
  font-size: 44px;
  font-weight: 800;
  line-height: 1;
  color: var(--faq-base);
  border-bottom: 4px solid var(--faq-green);
}
.page-faq .section-head h2 {
  margin: 4px 0 0;
  font-size: 28px;
  font-family: var(--font-display);
  color: var(--faq-dark);
}
.page-faq .section-head .eyebrow {
  display: block;
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--faq-gray);
  text-transform: uppercase;
}

/* ===== 快速指南 ===== */
.page-faq .faq-guide {
  background: var(--faq-ice);
}
.page-faq .faq-guide__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
.page-faq .faq-guide__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.page-faq .faq-guide__item {
  position: relative;
  background: var(--faq-white);
  border: 1px solid var(--faq-light);
  border-radius: var(--faq-radius);
  padding: 28px 24px 24px;
  box-shadow: 0 2px 10px rgba(10, 31, 68, 0.04);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.page-faq .faq-guide__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 4px;
  background: var(--faq-green);
}
.page-faq .faq-guide__item:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(10, 31, 68, 0.08);
}
.page-faq .faq-guide__num {
  display: inline-block;
  background: var(--faq-green);
  color: var(--faq-dark);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 800;
  padding: 3px 12px 3px 10px;
  border-radius: 2px 0 0 2px;
  clip-path: polygon(0 0, 100% 0, 92% 100%, 0 100%);
  margin-bottom: 10px;
}
.page-faq .faq-guide__item h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-family: var(--font-display);
  color: var(--faq-dark);
}
.page-faq .faq-guide__item h3::after {
  content: "";
  display: block;
  width: 26px;
  height: 4px;
  margin-top: 6px;
  background: var(--faq-orange);
  clip-path: polygon(0 0, 100% 0, 80% 100%, 0 100%);
}
.page-faq .faq-guide__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--faq-gray);
}
.page-faq .faq-guide__media {
  margin: 0;
}
.page-faq .faq-guide__media img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--faq-radius);
  box-shadow: 0 8px 24px rgba(10, 31, 68, 0.1);
}

/* ===== 常见问题 ===== */
.page-faq .faq-qa {
  background: var(--faq-white);
}
.page-faq .faq-qa__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
.page-faq .faq-qa__index {
  position: relative;
  top: auto;
  background: var(--faq-base);
  border-radius: var(--faq-radius);
  padding: 24px;
  color: var(--faq-white);
}
.page-faq .faq-qa__legend {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
}
.page-faq .faq-qa__index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}
.page-faq .faq-qa__index-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  border-left: 3px solid transparent;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.page-faq .faq-qa__index-list a:hover {
  background: rgba(255, 255, 255, 0.1);
  border-left-color: var(--faq-green);
  color: var(--faq-white);
}
.page-faq .faq-qa__index-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--faq-green);
  min-width: 24px;
}
.page-faq .faq-qa__answers {
  display: grid;
  gap: 36px;
}
.page-faq .faq-cat__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 16px;
  font-size: 20px;
  font-family: var(--font-display);
  color: var(--faq-dark);
}
.page-faq .faq-cat__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 800;
  color: var(--faq-white);
  background: var(--faq-base);
  padding: 3px 8px;
  border-radius: 2px;
}
.page-faq .faq-item {
  border: 1px solid var(--faq-light);
  border-radius: var(--faq-radius);
  margin-bottom: 12px;
  background: var(--faq-ice);
  overflow: hidden;
}
.page-faq .faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 700;
  color: var(--faq-dark);
  background: var(--faq-white);
  border-left: 4px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary::after {
  content: "+";
  display: inline-block;
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--faq-green);
  transition: transform 0.2s ease;
}
.page-faq .faq-item[open] summary {
  border-left-color: var(--faq-green);
  background: var(--faq-ice);
}
.page-faq .faq-item[open] summary::after {
  content: "+";
  transform: rotate(45deg);
}
.page-faq .faq-item__body {
  padding: 14px 20px 18px 24px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-gray);
  border-top: 1px dashed var(--faq-light);
}
.page-faq .faq-item__body p {
  margin: 0;
}

/* ===== 联系支持 ===== */
.page-faq .faq-contact {
  background: linear-gradient(135deg, var(--faq-base) 0%, var(--faq-base-2) 60%, var(--faq-base-3) 100%);
  color: var(--faq-white);
}
.page-faq .faq-contact .section-num {
  color: var(--faq-green);
  border-bottom-color: var(--faq-orange);
}
.page-faq .faq-contact .section-head h2 {
  color: var(--faq-white);
}
.page-faq .faq-contact .section-head .eyebrow {
  color: rgba(255, 255, 255, 0.6);
}
.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 28px;
}
.page-faq .faq-contact__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--faq-radius);
  padding: 24px;
  min-height: 120px;
  backdrop-filter: blur(8px);
}
.page-faq .faq-contact__card--green {
  border-left: 4px solid var(--faq-green);
}
.page-faq .faq-contact__card--hot {
  border-left: 4px solid var(--faq-orange);
}
.page-faq .faq-contact__type {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
}
.page-faq .faq-contact__value {
  font-size: 20px;
  font-weight: 700;
  color: var(--faq-white);
  word-break: break-all;
}
.page-faq .faq-contact__card--green .faq-contact__value,
.page-faq .faq-contact__card--hot .faq-contact__value {
  font-family: var(--font-mono);
}
.page-faq .faq-contact__note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.66);
}
.page-faq .faq-contact__tips {
  margin: 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}
.page-faq .faq-contact__tips a {
  color: var(--faq-green);
  text-decoration: none;
  font-weight: 600;
}
.page-faq .faq-contact__tips a:hover {
  text-decoration: underline;
}

/* ===== 桌面增强 ===== */
@media (min-width: 992px) {
  .page-faq .faq-hero {
    padding: 96px 0 72px;
  }
  .page-faq .faq-hero h1 {
    font-size: 48px;
  }
  .page-faq .faq-guide,
  .page-faq .faq-qa,
  .page-faq .faq-contact {
    padding: 72px 0;
  }
  .page-faq .section-head h2 {
    font-size: 32px;
  }
  .page-faq .faq-guide__grid {
    grid-template-columns: 1.4fr 0.8fr;
    align-items: start;
  }
  .page-faq .faq-guide__steps {
    gap: 16px;
  }
  .page-faq .faq-qa__layout {
    grid-template-columns: 260px 1fr;
    gap: 48px;
    align-items: start;
  }
  .page-faq .faq-qa__index {
    position: sticky;
    top: calc(var(--header-h) + 12px);
  }
  .page-faq .faq-contact__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}