/* ===== 故障速查问答 / page-faq ===== */
.page-faq {
  display: block;
}

.page-faq img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .qa-hero {
  display: grid;
  gap: 18px;
  padding: 26px 0 40px;
  border-bottom: 1px solid var(--line);
}

.page-faq .qa-hero__title {
  margin: 0;
  font-size: clamp(30px, 8.4vw, 54px);
  line-height: 1.13;
  letter-spacing: -0.015em;
  font-weight: 800;
  max-width: 14em;
}

.page-faq .qa-hero__lead {
  margin: 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .qa-hero__facts {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .qa-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-left: 12px;
  border-left: 1px solid var(--line);
}

.page-faq .qa-hero__facts strong {
  font-size: 20px;
  font-weight: 600;
  color: var(--white);
  white-space: nowrap;
}

.page-faq .qa-hero__facts span {
  font-size: 13.5px;
  color: var(--mist);
}

.page-faq .qa-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

/* ---------- 分区通用 ---------- */
.page-faq .qa-sec {
  padding: 46px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .qa-sec__head {
  display: grid;
  gap: 12px;
  max-width: 46em;
  margin-bottom: 28px;
}

.page-faq .qa-sec__lead {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .qa-sec__lead a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 三步定位 ---------- */
.page-faq .steps-layout {
  display: grid;
  gap: 28px;
}

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

.page-faq .step {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
  transition: background-color var(--fast) var(--ease);
}

.page-faq .step:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .step:hover {
  background: var(--glass);
}

.page-faq .step__box {
  appearance: none;
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  margin: 4px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  cursor: pointer;
  transition: background-color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.page-faq .step__box:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .step__box:checked {
  background: var(--green);
  border-color: var(--green);
}

.page-faq .step__label {
  display: grid;
  gap: 10px;
  cursor: pointer;
}

.page-faq .step__top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-faq .step__idx {
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .step__title {
  font-size: 19px;
  font-weight: 700;
  color: var(--white);
}

.page-faq .step__time {
  margin-left: auto;
  font-size: 12px;
  color: var(--mist);
  white-space: nowrap;
}

.page-faq .step__body {
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .step__body strong {
  color: var(--white);
  font-weight: 600;
}

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

.page-faq .step__branch li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .step__branch li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--orange);
}

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

.page-faq .step__box:checked + .step__label .step__title::before {
  content: "✓ ";
  color: var(--green);
}

.page-faq .steps__note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .qa-figure {
  margin: 0;
}

/* ---------- 机型对照表 ---------- */
.page-faq .faults {
  display: grid;
  gap: 20px;
  margin-top: 30px;
}

.page-faq .faults__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faults__chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--mist);
  cursor: pointer;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease), background-color var(--fast) var(--ease);
}

.page-faq .faults__chip:hover {
  color: var(--white);
  border-color: var(--mist);
}

.page-faq .faults__chip:has(:focus-visible) {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faults__chip:has(:checked) {
  color: var(--cyan);
  border-color: var(--cyan);
  background: var(--glass);
}

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

.page-faq .faults__scroll {
  overflow-x: auto;
}

.page-faq .faults__table,
.page-faq .faults__table tbody,
.page-faq .faults__table tr,
.page-faq .faults__table td {
  display: block;
  width: 100%;
}

.page-faq .faults__table {
  margin: 0;
  font-size: 14px;
}

.page-faq .faults__table thead {
  display: none;
}

.page-faq .faults__table tbody tr {
  padding: 16px 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faults__table tbody tr:nth-child(even) {
  background: rgba(242, 246, 255, 0.035);
}

.page-faq .faults__table td {
  padding: 4px 0;
  line-height: 1.65;
  color: var(--white);
  vertical-align: top;
}

.page-faq .faults__table td::before {
  display: block;
  margin-bottom: 2px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-faq .faults__table td.c-phenom::before {
  content: "现象";
}

.page-faq .faults__table td.c-model::before {
  content: "机型";
}

.page-faq .faults__table td.c-os::before {
  content: "系统";
}

.page-faq .faults__table td.c-act::before {
  content: "动作";
}

.page-faq .faults__code {
  display: block;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .faults__note {
  margin: 0;
  max-width: 42em;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

/* 纯 CSS 系统筛选（脚本关闭时全部行照常显示） */
.page-faq .faults__bar:has(#ff-harmony:checked) ~ .faults__scroll tbody tr:not(.os-harmony) {
  display: none;
}

.page-faq .faults__bar:has(#ff-a14:checked) ~ .faults__scroll tbody tr:not(.os-a14) {
  display: none;
}

.page-faq .faults__bar:has(#ff-a15:checked) ~ .faults__scroll tbody tr:not(.os-a15) {
  display: none;
}

.page-faq .faults__bar:has(#ff-ios:checked) ~ .faults__scroll tbody tr:not(.os-ios) {
  display: none;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
}

.page-faq .faq {
  padding-left: 18px;
  border-top: 1px solid var(--line);
  border-left: 2px solid transparent;
  transition: border-color var(--fast) var(--ease), background-color var(--fast) var(--ease);
}

.page-faq .faq:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq[open] {
  border-left-color: var(--cyan);
  background: var(--glass);
}

.page-faq .faq__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 20px 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq__q::before {
  content: "+";
  flex: none;
  font-family: var(--mono);
  font-size: 16px;
  color: var(--cyan);
}

.page-faq .faq[open] .faq__q::before {
  content: "–";
}

.page-faq .faq__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq__a {
  padding: 0 0 22px 28px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq__a p {
  margin: 0 0 12px;
}

.page-faq .faq__a p:last-child {
  margin-bottom: 0;
}

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

/* ---------- 账号状态 ---------- */
.page-faq .states {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .state {
  display: grid;
  gap: 10px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.page-faq .state:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .state p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 提交清单 ---------- */
.page-faq .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .checklist > li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-faq .checklist > li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .checklist__idx {
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .checklist p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .checklist strong {
  display: block;
  margin-bottom: 2px;
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-faq .codeblock {
  display: grid;
  gap: 6px;
  margin-top: 28px;
  padding: 20px 22px;
  background: var(--glass);
  border-left: 3px solid var(--orange);
}

.page-faq .codeblock__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-faq .codeblock__value {
  margin: 0;
  font-size: clamp(26px, 9vw, 40px);
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--white);
}

.page-faq .codeblock__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .channels {
  display: grid;
  gap: 18px;
  margin: 28px 0 0;
  padding: 0;
}

.page-faq .channels > div {
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-faq .channels dt {
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-faq .channels dd {
  margin: 0;
  font-size: 16px;
  color: var(--white);
  word-break: break-word;
}

.page-faq .qa-next {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

/* ---------- 宽屏 ---------- */
@media (min-width: 640px) {
  .page-faq .qa-hero__facts {
    grid-template-columns: repeat(3, minmax(0, auto));
    justify-content: start;
    gap: 24px;
  }

  .page-faq .qa-hero__facts li {
    padding-left: 14px;
  }

  .page-faq .state {
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
  }
}

@media (min-width: 780px) {
  .page-faq .qa-hero {
    padding: 42px 0 56px;
    gap: 22px;
  }

  .page-faq .qa-sec {
    padding: 64px 0;
  }

  .page-faq .qa-sec__head {
    margin-bottom: 36px;
  }

  .page-faq .faults__table {
    display: table;
    width: 100%;
    border-collapse: collapse;
  }

  .page-faq .faults__table thead {
    display: table-header-group;
  }

  .page-faq .faults__table tbody {
    display: table-row-group;
  }

  .page-faq .faults__table tr {
    display: table-row;
    padding: 0;
    border-bottom: 0;
  }

  .page-faq .faults__table td {
    display: table-cell;
    width: auto;
    padding: 14px;
    border-bottom: 1px solid var(--line);
  }

  .page-faq .faults__table td::before {
    display: none;
  }

  .page-faq .faults__table thead th {
    padding: 12px 14px;
    background: var(--white);
    color: var(--ink);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-align: left;
    white-space: nowrap;
  }

  .page-faq .faults__table tbody tr:hover {
    background: var(--glass-up);
  }

  .page-faq .channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-faq .faq__a {
    padding-left: 28px;
    max-width: 46em;
  }
}

@media (min-width: 980px) {
  .page-faq .steps-layout {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .qa-figure {
    position: sticky;
    top: calc(var(--hdr-h) + 24px);
  }
}
<<<END>>>