.page-faq {
  --faq-gap: clamp(16px, 3vw, 28px);
  --faq-cut: 14px;
  background: var(--ink);
  color: var(--frost);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 38px;
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(199, 255, 61, 0.16), transparent 62%),
    linear-gradient(165deg, var(--ink) 0%, var(--ink-deep) 68%, var(--coal) 100%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -18%;
  top: -34%;
  width: min(520px, 78vw);
  height: min(520px, 78vw);
  background: linear-gradient(120deg, rgba(255, 107, 44, 0.18), rgba(199, 255, 61, 0.05));
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  transform: rotate(12deg);
  pointer-events: none;
}

.page-faq .faq-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumbs {
  margin-bottom: 20px;
  font-size: 13px;
}

.page-faq .eyebrow {
  display: inline-block;
  color: var(--lime);
  letter-spacing: 0.12em;
  margin: 0 0 12px;
}

.page-faq h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7.6vw, 68px);
  line-height: 1.02;
  letter-spacing: 0.01em;
  color: var(--white);
  max-width: 18ch;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.75;
  color: rgba(217, 230, 226, 0.86);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
  margin-top: 26px;
}

.page-faq .faq-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-quick__link {
  display: inline-flex;
  align-items: center;
  padding: 11px 18px;
  background: rgba(217, 230, 226, 0.06);
  border: 1px solid var(--edge);
  color: var(--white);
  font-size: 14px;
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, var(--faq-cut) 100%, 0 calc(100% - var(--faq-cut)));
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-quick__link:hover,
.page-faq .faq-quick__link:focus-visible {
  color: var(--lime);
  border-color: rgba(199, 255, 61, 0.6);
  background: rgba(199, 255, 61, 0.08);
}

.page-faq .faq-hero__card {
  background: var(--coal);
  padding: 18px 20px 14px;
  border-top: 2px solid var(--lime);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, var(--faq-cut) 100%, 0 calc(100% - var(--faq-cut)));
}

.page-faq .faq-hero__card-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ice);
  text-transform: uppercase;
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  font-size: 14px;
  color: rgba(217, 230, 226, 0.8);
  border-bottom: 1px dashed rgba(217, 230, 226, 0.14);
}

.page-faq .faq-stat:last-child {
  border-bottom: 0;
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 17px;
  color: var(--lime);
  white-space: nowrap;
}

.page-faq .faq-toolbar {
  position: sticky;
  top: 0;
  z-index: 6;
  padding: 12px 0 10px;
  background: rgba(8, 32, 26, 0.95);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--edge);
  border-bottom: 1px solid var(--edge);
}

.page-faq .faq-toolbar .filter-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}

.page-faq .faq-toolbar .filter-bar::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-toolbar .filter-chip {
  flex: none;
  font-size: 13px;
  white-space: nowrap;
}

.page-faq .faq-jump {
  display: flex;
  gap: 16px;
  margin-top: 10px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
}

.page-faq .faq-jump::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-jump__link {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ice);
  text-decoration: none;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-faq .faq-body {
  padding: 10px 0 64px;
}

.page-faq .faq-section {
  padding: 36px 0 10px;
  border-bottom: 1px solid var(--edge);
  scroll-margin-top: 130px;
}

.page-faq .faq-section:last-child {
  border-bottom: 0;
}

.page-faq .faq-section__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 10px;
}

.page-faq .faq-section__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-faq .faq-section h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 5.4vw, 38px);
  line-height: 1.1;
  color: var(--white);
}

.page-faq .faq-section__lead {
  margin: 0 0 6px;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(217, 230, 226, 0.72);
}

.page-faq .faq-item {
  margin-top: 10px;
  background: rgba(17, 21, 23, 0.6);
  border-left: 2px solid rgba(217, 230, 226, 0.16);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-item[open] {
  border-left-color: var(--lime);
  background: rgba(17, 21, 23, 0.92);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  font-size: 15.5px;
  line-height: 1.5;
  font-weight: 500;
  color: var(--white);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--lime);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-faq .faq-item__body {
  padding: 0 16px 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(217, 230, 226, 0.86);
}

.page-faq .faq-item__body a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
}

.page-faq .faq-steps li {
  position: relative;
  padding: 0 0 14px 38px;
  counter-increment: step;
}

.page-faq .faq-steps li:last-child {
  padding-bottom: 0;
}

.page-faq .faq-steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  color: var(--lime);
  background: rgba(199, 255, 61, 0.1);
  padding: 2px 6px;
}

.page-faq .faq-steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 13px;
  top: 26px;
  bottom: 2px;
  width: 1px;
  background: linear-gradient(var(--lime), transparent);
  opacity: 0.35;
}

.page-faq .faq-result {
  margin: 14px 0 0;
  padding: 10px 12px;
  background: rgba(255, 107, 44, 0.1);
  border-left: 2px solid var(--orange);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--white);
}

.page-faq .faq-result::before {
  content: "结果";
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-devices {
  display: grid;
  gap: 16px;
  margin: 20px 0 6px;
}

.page-faq .faq-device {
  background: var(--coal);
  padding: 18px;
  border-top: 2px solid var(--fir);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, var(--faq-cut) 100%, 0 calc(100% - var(--faq-cut)));
}

.page-faq .faq-device--phone {
  border-top-color: var(--lime);
}

.page-faq .faq-device--desk {
  border-top-color: var(--orange);
}

.page-faq .faq-device__tag {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--ice);
}

.page-faq .faq-device h3 {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.25;
  color: var(--white);
}

.page-faq .faq-device__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(217, 230, 226, 0.76);
}

.page-faq .faq-device__figure {
  margin: 14px 0 0;
}

.page-faq .faq-device__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--fir);
  border: 1px solid var(--edge);
}

.page-faq .faq-device__figure figcaption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--ice);
}

.page-faq .faq-checklist {
  list-style: none;
  margin: 18px 0 6px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-check {
  display: flex;
  gap: 12px;
  padding: 14px 15px;
  background: rgba(17, 21, 23, 0.6);
  border: 1px solid var(--edge);
}

.page-faq .faq-check__dot {
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-radius: 50%;
}

.page-faq .faq-check--self .faq-check__dot {
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(199, 255, 61, 0.14);
}

.page-faq .faq-check--support .faq-check__dot {
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 44, 0.16);
}

.page-faq .faq-check__title {
  margin: 0 0 4px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--white);
}

.page-faq .faq-check__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.68;
  color: rgba(217, 230, 226, 0.76);
}

.page-faq .faq-section--support {
  padding-bottom: 20px;
}

.page-faq .faq-support {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.page-faq .faq-support__card {
  background: var(--coal);
  padding: 20px;
  border-top: 2px solid var(--lime);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, var(--faq-cut) 100%, 0 calc(100% - var(--faq-cut)));
}

.page-faq .faq-support__card--guide {
  border-top-color: var(--amber);
  background: var(--fir);
}

.page-faq .faq-support__card-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  color: var(--white);
}

.page-faq .faq-contact {
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-faq .faq-contact__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ice);
}

.page-faq .faq-contact__value {
  font-size: 16px;
  line-height: 1.5;
  color: var(--white);
  text-decoration: none;
  word-break: break-word;
}

.page-faq a.faq-contact__value:hover,
.page-faq a.faq-contact__value:focus-visible {
  color: var(--lime);
}

.page-faq .faq-support__note {
  margin: 14px 0 16px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(217, 230, 226, 0.7);
}

.page-faq .faq-support__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(247, 251, 247, 0.86);
}

.page-faq .faq-support__list {
  list-style: none;
  margin: 14px 0 18px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-support__list li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(247, 251, 247, 0.82);
}

.page-faq .faq-support__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 2px;
  background: var(--orange);
}

.page-faq .faq-support .btn {
  margin-top: 4px;
}

@media (min-width: 720px) {
  .page-faq .faq-checklist {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-support {
    grid-template-columns: 1.08fr 0.92fr;
  }

  .page-faq .faq-item summary {
    padding: 16px 20px;
    font-size: 16px;
  }

  .page-faq .faq-item__body {
    padding: 0 20px 20px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 34px 0 52px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
    margin-top: 34px;
  }

  .page-faq .faq-quick {
    max-width: 30rem;
  }

  .page-faq .faq-devices {
    grid-template-columns: 0.82fr 1.18fr;
    align-items: start;
  }

  .page-faq .faq-section {
    padding: 46px 0 14px;
  }

  .page-faq .faq-body {
    padding-bottom: 80px;
  }
}