.page-faq {
  --faq-cut: 22px;
  --faq-hair: rgba(201, 162, 39, 0.32);
  --faq-body: rgba(247, 244, 236, 0.78);
  --faq-mute: rgba(247, 244, 236, 0.58);
  --faq-panel: #131a30;
  display: block;
  background: var(--ink);
  color: var(--porcelain);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(36px, 6vw, 76px) 0 clamp(40px, 6vw, 72px);
  background:
    radial-gradient(110% 85% at 88% 6%, rgba(91, 58, 166, 0.62), transparent 62%),
    radial-gradient(80% 70% at 2% 100%, rgba(201, 162, 39, 0.16), transparent 70%),
    linear-gradient(165deg, var(--ink) 0%, var(--ink-2) 55%, #0d1224 100%);
  border-bottom: 1px solid var(--edge);
}

.page-faq .faq-hero__wash {
  position: absolute;
  right: -10%;
  bottom: -34%;
  width: min(620px, 78vw);
  height: 460px;
  background: linear-gradient(135deg, rgba(139, 107, 224, 0.24), rgba(201, 162, 39, 0.05));
  clip-path: polygon(20% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero__slash {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--gold) 0%, rgba(201, 162, 39, 0.1) 46%, transparent 70%);
  pointer-events: none;
}

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

.page-faq .faq-hero__eyebrow {
  margin-top: 26px;
}

.page-faq .faq-hero__title {
  margin: 16px 0 20px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(38px, 7vw, 74px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--porcelain);
}

.page-faq .faq-hero__lead {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(16px, 1.1vw, 18px);
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump__link {
  display: inline-block;
  padding: 9px 16px;
  font-size: 14px;
  color: var(--gold-light);
  text-decoration: none;
  background: rgba(42, 27, 77, 0.55);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: color 0.2s var(--ease), background 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--ink);
  background: var(--gold);
  transform: translateY(-2px);
}

/* ---------- 分区与抬头 ---------- */
.page-faq .faq-section {
  position: relative;
  padding: clamp(52px, 7vw, 96px) 0;
}

.page-faq .faq-section--tint {
  background: linear-gradient(180deg, var(--ink-2) 0%, #0e1424 100%);
  border-top: 1px solid var(--edge);
  border-bottom: 1px solid var(--edge);
}

.page-faq .faq-head {
  max-width: 780px;
  margin-bottom: clamp(26px, 3.5vw, 44px);
}

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

.page-faq .section__title {
  font-family: var(--font-serif);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--porcelain);
}

.page-faq .section__lead {
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--faq-body);
}

/* ---------- 对比表 ---------- */
.page-faq .faq-media {
  margin: 0 0 24px;
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
}

.page-faq .faq-media img,
.page-faq .trouble__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .view-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
}

.page-faq .view-switch__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .view-switch__label {
  padding: 8px 16px;
  font-size: 14px;
  cursor: pointer;
  color: rgba(247, 244, 236, 0.72);
  background: rgba(20, 26, 46, 0.8);
  border: 1px solid var(--edge);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .view-switch__label:hover {
  color: var(--gold-light);
  border-color: var(--faq-hair);
}

.page-faq .view-switch__radio:checked + .view-switch__label {
  color: var(--porcelain);
  background: var(--purple);
  border-color: var(--purple);
}

.page-faq .view-switch__radio:focus-visible + .view-switch__label {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-faq .cmp-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background: var(--ink-2);
  border: 1px solid var(--edge);
}

.page-faq .cmp-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-faq .cmp-table caption {
  caption-side: top;
  padding: 14px 18px 0;
  text-align: left;
  font-size: 13px;
  line-height: 1.7;
  color: var(--faq-mute);
}

.page-faq .cmp-table th,
.page-faq .cmp-table td {
  padding: 16px 18px;
  text-align: left;
  vertical-align: top;
  line-height: 1.72;
  border-bottom: 1px solid rgba(56, 64, 92, 0.75);
}

.page-faq .cmp-table thead th {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold-light);
  background: var(--purple-deep);
  border-bottom: 2px solid var(--gold);
}

.page-faq .cmp-table tbody th {
  font-weight: 700;
  color: var(--porcelain);
}

.page-faq .cmp-table tbody tr:nth-child(even) td,
.page-faq .cmp-table tbody tr:nth-child(even) th {
  background: rgba(20, 26, 46, 0.55);
}

.page-faq .cmp-table__no {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-faq .cmp-table__steps {
  display: inline-block;
  margin-top: 8px;
  padding: 2px 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold-light);
  background: rgba(42, 27, 77, 0.7);
  clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
}

.page-faq .cmp-col--phone {
  border-left: 1px solid rgba(56, 64, 92, 0.5);
}

.page-faq .cmp-col--tablet {
  border-left: 1px solid rgba(56, 64, 92, 0.5);
}

.page-faq .cmp-table thead .cmp-col--phone {
  background: #33235c;
}

.page-faq .cmp-table thead .cmp-col--tablet {
  background: #241a49;
}

.page-faq #faq-view-phone:checked ~ .cmp-wrap .cmp-col--tablet {
  opacity: 0.34;
}

.page-faq #faq-view-phone:checked ~ .cmp-wrap .cmp-col--phone {
  background: rgba(91, 58, 166, 0.26);
}

.page-faq #faq-view-tablet:checked ~ .cmp-wrap .cmp-col--phone {
  opacity: 0.34;
}

.page-faq #faq-view-tablet:checked ~ .cmp-wrap .cmp-col--tablet {
  background: rgba(42, 27, 77, 0.6);
}

.page-faq .faq-note {
  margin: 16px 0 0;
  padding-left: 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-mute);
  border-left: 2px solid var(--gold);
}

/* ---------- 折叠教程 ---------- */
.page-faq .faq-tuts {
  display: block;
}

.page-faq .accordion__item {
  position: relative;
  margin-bottom: 12px;
  background: var(--faq-panel);
  border: 1px solid var(--edge);
  border-left: 3px solid transparent;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .accordion__item[open] {
  background: #172038;
  border-left-color: var(--gold);
}

.page-faq .accordion__summary {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding: 18px 56px 18px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 17px;
  color: var(--porcelain);
}

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

.page-faq .accordion__summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 14px;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--gold);
  transition: transform 0.25s var(--ease);
}

.page-faq .accordion__item[open] .accordion__summary::after {
  content: "–";
}

.page-faq .accordion__body {
  padding: 2px 20px 22px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-tuts__no {
  font-family: var(--font-brush);
  font-size: 19px;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-faq .faq-tuts__name {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-tuts__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(234, 212, 138, 0.72);
  white-space: nowrap;
}

.page-faq .trouble__no {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .faq-steps {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faqstep;
  margin-bottom: 12px;
  padding-left: 40px;
  line-height: 1.82;
}

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

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink);
  background: var(--gold);
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
}

.page-faq .faq-tuts__fit {
  margin: 18px 0 0;
  padding: 12px 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-body);
  background: rgba(42, 27, 77, 0.42);
  border-left: 2px solid var(--purple-light);
}

.page-faq .faq-tuts__fit strong {
  color: var(--gold-light);
}

/* ---------- 换设备检查 ---------- */
.page-faq .checkup {
  display: grid;
  gap: 26px;
}

.page-faq .checkup__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--edge);
}

.page-faq .checkup__item {
  display: flex;
  gap: 14px;
  padding: 18px 4px 18px 0;
  border-bottom: 1px solid var(--edge);
}

.page-faq .checkup__mark {
  flex: none;
  width: 10px;
  height: 10px;
  margin-top: 8px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-faq .checkup__title {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--porcelain);
}

.page-faq .checkup__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-body);
}

.page-faq .checkup__path {
  padding: 26px 22px 24px;
  background: linear-gradient(155deg, var(--purple-deep) 0%, #170f2e 72%);
  border-top: 2px solid var(--gold);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, 0 100%);
}

.page-faq .checkup__path-label {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-light);
}

.page-faq .checkup__path .pathway {
  margin-bottom: 22px;
}

.page-faq .checkup__path .pathway__title {
  font-family: var(--font-serif);
  font-size: 17px;
  color: var(--porcelain);
}

.page-faq .checkup__path .pathway__text {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(247, 244, 236, 0.72);
}

/* ---------- 异常排查 ---------- */
.page-faq .trouble {
  display: grid;
  gap: 28px;
}

.page-faq .trouble__media {
  margin: 0;
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
}

/* ---------- 设备绑定 ---------- */
.page-faq .bind {
  display: grid;
  gap: 16px;
}

.page-faq .bind__card {
  padding: 26px 22px;
  background: var(--ink-2);
  border: 1px solid var(--edge);
  border-top: 2px solid var(--gold);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .bind__card:hover {
  transform: translateY(-4px);
  border-color: var(--faq-hair);
}

.page-faq .bind__title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--porcelain);
}

.page-faq .bind__num {
  margin-right: 6px;
  font-family: var(--font-brush);
  font-size: 40px;
  line-height: 1;
  color: var(--gold-light);
  vertical-align: -6px;
}

.page-faq .bind__text {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-body);
}

.page-faq .bind__card .link-arrow {
  font-size: 15px;
}

/* ---------- 术语表 ---------- */
.page-faq .glossary {
  column-count: 1;
  column-gap: 44px;
}

.page-faq .glossary__group {
  break-inside: avoid;
  margin: 0 0 30px;
}

.page-faq .glossary__group-title {
  margin: 0 0 12px;
  padding-bottom: 8px;
  font-family: var(--font-brush);
  font-size: 20px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--gold);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .glossary__list {
  margin: 0;
}

.page-faq .glossary__row {
  padding: 10px 0;
  border-bottom: 1px dashed rgba(56, 64, 92, 0.85);
}

.page-faq .glossary__term {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--gold-light);
}

.page-faq .glossary__def {
  margin: 5px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-body);
}

/* ---------- 响应式 ---------- */
@media (max-width: 600px) {
  .page-faq .faq-jump__link {
    padding: 8px 13px;
    font-size: 13px;
  }

  .page-faq .cmp-table th,
  .page-faq .cmp-table td {
    padding: 13px 14px;
  }

  .page-faq .accordion__summary {
    font-size: 16px;
    padding: 15px 50px 15px 16px;
  }

  .page-faq .accordion__body {
    padding: 2px 16px 18px;
  }

  .page-faq .faq-tuts__meta {
    flex-basis: 100%;
    margin-top: 2px;
  }

  .page-faq .bind__num {
    font-size: 34px;
  }
}

@media (min-width: 760px) {
  .page-faq .glossary {
    column-count: 2;
  }

  .page-faq .bind {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .page-faq .cmp-wrap {
    overflow: visible;
  }

  .page-faq .cmp-table thead th {
    position: sticky;
    top: 0;
    z-index: 3;
  }

  .page-faq .checkup {
    grid-template-columns: 7fr 5fr;
    gap: 40px;
    align-items: start;
  }

  .page-faq .trouble {
    grid-template-columns: 8fr 4fr;
    gap: 40px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump__link,
  .page-faq .bind__card,
  .page-faq .accordion__item,
  .page-faq .accordion__summary::after {
    transition: none;
  }

  .page-faq .faq-jump__link:hover,
  .page-faq .bind__card:hover {
    transform: none;
  }
}