.page-faq {
  --faq-line: 1px solid var(--ink-700);
  --faq-pad: 20px;
  position: relative;
  background-color: var(--ink-900);
  background-image:
    repeating-linear-gradient(0deg, rgba(53, 230, 216, .04) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(90deg, rgba(53, 230, 216, .04) 0 1px, transparent 1px 96px);
  color: var(--slate-200);
  font-family: var(--font-sans);
  font-size: 16.5px;
  line-height: 1.75;
  padding: 92px 0 64px;
  overflow-x: clip;
}

.page-faq .faq-wrap {
  width: 100%;
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 var(--faq-pad);
}

.page-faq .crumb {
  margin-bottom: 26px;
}

/* ---------- hero ---------- */

.page-faq .faq-hero__grid {
  display: grid;
  gap: 24px;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 16px;
  max-width: 21ch;
  font-size: clamp(29px, 6.4vw, 54px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -.022em;
  color: var(--white-50);
}

.page-faq .eyebrow {
  color: var(--cyan-400);
  letter-spacing: .16em;
}

.page-faq .lede {
  max-width: var(--measure);
  font-size: 17px;
  line-height: 1.82;
  color: var(--slate-200);
}

.page-faq .faq-console {
  align-self: start;
  padding: 18px;
  background: var(--glass);
  border: 1px solid rgba(53, 230, 216, .34);
  backdrop-filter: blur(6px);
}

.page-faq .faq-console__title {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan-400);
}

.page-faq .faq-chip {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--ink-700);
  font-size: 14px;
}

.page-faq .faq-chip__key {
  color: var(--slate-400);
}

.page-faq .faq-chip__val {
  color: var(--white-50);
  font-size: 13.5px;
}

.page-faq .faq-console__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-400);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 28px;
  background: var(--ink-700);
  border: var(--faq-line);
}

.page-faq .faq-stat {
  background: var(--ink-900);
  padding: 15px 13px;
}

.page-faq .faq-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 25px;
  line-height: 1.1;
  color: var(--white-50);
}

.page-faq .faq-stat__key {
  display: block;
  margin-top: 5px;
  font-size: 12.5px;
  color: var(--slate-400);
}

.page-faq .faq-stat--cyan .faq-stat__num { color: var(--cyan-400); }
.page-faq .faq-stat--magenta .faq-stat__num { color: var(--magenta-500); }
.page-faq .faq-stat--mint .faq-stat__num { color: var(--mint-300); }
.page-faq .faq-stat--amber .faq-stat__num { color: var(--amber-400); }

/* ---------- 分岔选择 ---------- */

.page-faq .faq-fork {
  margin-top: 56px;
}

.page-faq h2 {
  margin: 8px 0 12px;
  font-size: clamp(21px, 3.6vw, 29px);
  line-height: 1.28;
  font-weight: 750;
  letter-spacing: -.016em;
  color: var(--white-50);
  max-width: 26ch;
}

.page-faq .faq-fork__intro {
  max-width: var(--measure);
  margin: 0 0 20px;
}

.page-faq .placard {
  margin-bottom: 4px;
}

.page-faq .fork__grid {
  display: grid;
  gap: 1px;
  background: var(--ink-700);
  border: var(--faq-line);
}

.page-faq .fork__card {
  display: block;
  padding: 20px 18px 18px;
  background: var(--ink-800);
  border-left: 3px solid transparent;
  text-decoration: none;
  color: inherit;
  transition: background .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .fork__card:hover,
.page-faq .fork__card:focus-visible {
  background: var(--ink-700);
}

.page-faq .fork__card--cyan:hover,
.page-faq .fork__card--cyan:focus-visible { border-left-color: var(--cyan-400); }
.page-faq .fork__card--magenta:hover,
.page-faq .fork__card--magenta:focus-visible { border-left-color: var(--magenta-500); }
.page-faq .fork__card--mint:hover,
.page-faq .fork__card--mint:focus-visible { border-left-color: var(--mint-300); }

.page-faq .fork__no {
  display: block;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--slate-400);
}

.page-faq .fork__title {
  display: block;
  margin: 10px 0 8px;
  font-size: 18px;
  color: var(--white-50);
}

.page-faq .fork__desc {
  display: block;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--slate-200);
}

.page-faq .fork__go {
  display: inline-block;
  margin-top: 14px;
  padding-bottom: 2px;
  font-size: 13px;
  color: var(--cyan-400);
  border-bottom: 1px solid transparent;
  transition: border-color .25s var(--ease);
}

.page-faq .fork__card:hover .fork__go,
.page-faq .fork__card:focus-visible .fork__go {
  border-bottom-color: currentColor;
}

.page-faq .frame {
  margin: 26px 0 0;
  border: var(--faq-line);
  background: var(--ink-800);
}

.page-faq .frame__cap {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--slate-400);
  border-top: var(--faq-line);
}

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

/* ---------- 索引 + 正文 ---------- */

.page-faq .faq-body {
  display: grid;
  gap: 26px;
  margin-top: 52px;
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--slate-400);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 12px;
  font-size: 13.5px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--slate-200);
  background: var(--ink-800);
  border: var(--faq-line);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-index__link .mono {
  color: var(--slate-400);
  font-size: 12px;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--white-50);
  border-color: var(--cyan-400);
}

.page-faq .faq-index__link:hover .mono,
.page-faq .faq-index__link:focus-visible .mono {
  color: var(--cyan-400);
}

/* ---------- 步骤区块 ---------- */

.page-faq .step {
  padding-top: 24px;
  margin-top: 30px;
  border-top: 1px solid var(--ink-700);
}

.page-faq .step:first-child {
  margin-top: 0;
}

.page-faq .step p {
  max-width: var(--measure);
}

.page-faq .step h3 {
  margin: 0 0 6px;
  font-size: 17px;
  color: var(--white-50);
  letter-spacing: -.01em;
}

.page-faq .pathlane {
  position: relative;
  margin: 20px 0 0;
  padding: 2px 0 2px 20px;
  border-left: 1px solid var(--ink-700);
}

.page-faq .pathlane::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 12px;
  width: 7px;
  height: 7px;
  background: var(--cyan-400);
}

.page-faq #path-mobile::before { background: var(--magenta-500); }
.page-faq #path-public::before { background: var(--mint-300); }

.page-faq .pathlane__note {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--slate-400);
}

.page-faq .pathlane ol {
  margin: 0;
  padding-left: 1.15em;
}

.page-faq .pathlane li {
  margin: .35em 0;
  font-size: 15.5px;
}

/* ---------- 安装三步 ---------- */

.page-faq .install {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.page-faq .install__item {
  display: flex;
  gap: 14px;
  padding: 16px;
  background: var(--glass);
  border: var(--faq-line);
}

.page-faq .install__no {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--cyan-400);
  color: var(--ink-900);
  font-size: 15px;
  font-weight: 700;
}

.page-faq .install__item:nth-child(2) .install__no { background: var(--magenta-500); color: var(--white-50); }
.page-faq .install__item:nth-child(3) .install__no { background: var(--amber-400); }

.page-faq .install__body p {
  margin: 0 0 8px;
  font-size: 15.5px;
}

.page-faq .install__check {
  margin: 0 !important;
  font-family: var(--font-mono);
  font-size: 13.5px !important;
  color: var(--mint-300);
}

/* ---------- 机型档位 ---------- */

.page-faq .tiers {
  margin-top: 20px;
  border: var(--faq-line);
  background: var(--ink-800);
}

.page-faq .tier {
  border-bottom: var(--faq-line);
}

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

.page-faq .tier > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--white-50);
  transition: background .2s var(--ease);
}

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

.page-faq .tier > summary:hover {
  background: var(--ink-700);
}

.page-faq .tier__bar {
  width: 4px;
  align-self: stretch;
  min-height: 22px;
  background: var(--cyan-400);
  transition: transform .2s var(--ease);
  transform-origin: center;
}

.page-faq .tier > summary:hover .tier__bar {
  transform: scaleY(1.14);
}

.page-faq .tier--2 .tier__bar { background: var(--mint-300); }
.page-faq .tier--3 .tier__bar { background: var(--amber-400); }
.page-faq .tier--4 .tier__bar { background: var(--magenta-500); }

.page-faq .tier__title {
  flex: 1 1 auto;
  font-size: 16px;
}

.page-faq .tier__meta {
  font-size: 12.5px;
  color: var(--slate-400);
}

.page-faq .tier__body {
  padding: 0 16px 16px 32px;
  border-top: 1px dashed var(--ink-700);
  margin-top: -1px;
  padding-top: 12px;
}

.page-faq .tier__body p {
  margin: 0;
  font-size: 15px;
  color: var(--slate-200);
}

.page-faq .step__tail {
  margin-top: 14px;
  font-size: 15px;
  color: var(--slate-400);
}

.page-faq .step__tail a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 216, .4);
}

.page-faq .step__tail a:hover {
  border-bottom-color: var(--cyan-400);
}

/* ---------- 18 项清单 ---------- */

.page-faq .checkgrid {
  display: grid;
  gap: 20px;
  margin-top: 22px;
}

.page-faq .checkgroup {
  padding-left: 14px;
  border-left: 3px solid var(--cyan-400);
}

.page-faq .checkgroup--magenta { border-left-color: var(--magenta-500); }
.page-faq .checkgroup--mint { border-left-color: var(--mint-300); }
.page-faq .checkgroup--amber { border-left-color: var(--amber-400); }

.page-faq .checkgroup ol {
  margin: 0;
  padding-left: 1.2em;
}

.page-faq .checkgroup li {
  margin: .3em 0;
  font-size: 15px;
  line-height: 1.65;
}

.page-faq .checkwrap {
  display: grid;
  gap: 18px;
  margin-top: 24px;
  padding: 18px;
  background: var(--ink-800);
  border: var(--faq-line);
}

.page-faq .checkwrap__lead {
  margin: 0 0 12px;
  font-size: 15px;
  color: var(--white-50);
}

.page-faq .miss {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  margin-bottom: 8px;
  background: var(--ink-900);
  border: var(--faq-line);
  cursor: pointer;
  transition: border-color .2s var(--ease);
}

.page-faq .miss:hover {
  border-color: var(--cyan-400);
}

.page-faq .miss input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  display: grid;
  place-items: center;
  background: transparent;
  border: 1px solid var(--slate-400);
  transition: background .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .miss input[type="checkbox"]:checked {
  background: var(--cyan-400);
  border-color: var(--cyan-400);
}

.page-faq .miss input[type="checkbox"]:checked::after {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--ink-900);
}

.page-faq .miss__text {
  font-size: 14.5px;
  line-height: 1.65;
}

.page-faq .ring {
  --p: 0;
  position: relative;
  justify-self: start;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: conic-gradient(var(--cyan-400) calc(var(--p) * 1%), var(--ink-700) 0);
}

.page-faq .ring::before {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: var(--ink-800);
}

.page-faq .ring::after {
  content: "0 / 3";
  position: relative;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--white-50);
}

.page-faq .checkwrap:has(#miss1:checked):has(#miss2:checked):has(#miss3:checked) .ring { --p: 100; }
.page-faq .checkwrap:has(#miss1:checked):has(#miss2:checked):has(#miss3:checked) .ring::after { content: "3 / 3"; }
.page-faq .checkwrap:has(#miss1:checked):has(#miss2:checked) .ring { --p: 66.7; }
.page-faq .checkwrap:has(#miss1:checked):has(#miss2:checked) .ring::after { content: "2 / 3"; }
.page-faq .checkwrap:has(#miss1:checked):has(#miss3:checked) .ring { --p: 66.7; }
.page-faq .checkwrap:has(#miss1:checked):has(#miss3:checked) .ring::after { content: "2 / 3"; }
.page-faq .checkwrap:has(#miss2:checked):has(#miss3:checked) .ring { --p: 66.7; }
.page-faq .checkwrap:has(#miss2:checked):has(#miss3:checked) .ring::after { content: "2 / 3"; }
.page-faq .checkwrap:has(#miss1:checked) .ring { --p: 33.3; }
.page-faq .checkwrap:has(#miss1:checked) .ring::after { content: "1 / 3"; }
.page-faq .checkwrap:has(#miss2:checked) .ring { --p: 33.3; }
.page-faq .checkwrap:has(#miss2:checked) .ring::after { content: "1 / 3"; }
.page-faq .checkwrap:has(#miss3:checked) .ring { --p: 33.3; }
.page-faq .checkwrap:has(#miss3:checked) .ring::after { content: "1 / 3"; }

/* ---------- 报错四象限 ---------- */

.page-faq .quad {
  display: grid;
  gap: 1px;
  margin-top: 20px;
  background: var(--ink-700);
  border: var(--faq-line);
}

.page-faq .quad__cell {
  background: var(--ink-800);
  border-left: 3px solid var(--cyan-400);
}

.page-faq .quad__cell--magenta { border-left-color: var(--magenta-500); }
.page-faq .quad__cell--mint { border-left-color: var(--mint-300); }
.page-faq .quad__cell--amber { border-left-color: var(--amber-400); }

.page-faq .quad__cell > summary {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "no name"
    "no cue";
  gap: 2px 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  transition: background .2s var(--ease);
}

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

.page-faq .quad__cell > summary:hover {
  background: var(--ink-700);
}

.page-faq .quad__no {
  grid-area: no;
  align-self: start;
  font-size: 15px;
  color: var(--slate-400);
}

.page-faq .quad__name {
  grid-area: name;
  font-size: 16px;
  color: var(--white-50);
}

.page-faq .quad__cue {
  grid-area: cue;
  font-size: 13px;
  color: var(--slate-400);
}

.page-faq .quad__cell ul {
  margin: 0;
  padding: 12px 16px 16px 34px;
  border-top: 1px dashed var(--ink-700);
}

.page-faq .quad__cell li {
  margin: .35em 0;
  font-size: 14.8px;
  line-height: 1.7;
}

/* ---------- 咨询 ---------- */

.page-faq .asklist {
  margin: 18px 0;
  padding: 16px 18px;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.9;
  background: var(--ink-800);
  border: var(--faq-line);
  border-left: 3px solid var(--amber-400);
}

.page-faq .asklist li {
  position: relative;
  padding-left: 1.1em;
  color: var(--slate-200);
}

.page-faq .asklist li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--amber-400);
}

.page-faq .mono {
  font-family: var(--font-mono);
  color: var(--white-50);
}

.page-faq .step a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 216, .35);
  transition: border-color .2s var(--ease);
}

.page-faq .step a:hover {
  border-bottom-color: var(--cyan-400);
}

/* ---------- 收尾 ---------- */

.page-faq .faq-cta {
  margin-top: 44px;
  padding: 22px 20px;
  background: var(--glass);
  border: 1px solid rgba(53, 230, 216, .4);
}

.page-faq .faq-cta h2 {
  max-width: 22ch;
}

.page-faq .faq-cta p {
  max-width: var(--measure);
  margin: 0 0 16px;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq {
    padding: 100px 0 80px;
  }

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

  .page-faq .install__item {
    padding: 18px 20px;
  }

  .page-faq .checkgrid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 28px;
  }

  .page-faq .checkwrap {
    grid-template-columns: minmax(0, 1fr) 96px;
    align-items: center;
    padding: 22px;
  }
}

@media (min-width: 760px) {
  .page-faq .quad {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq {
    --faq-pad: 32px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 304px;
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq h2 {
    max-width: 30ch;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: 192px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 28px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--ink-700);
  }

  .page-faq .faq-index__link {
    display: flex;
    background: transparent;
    border: 0;
    border-left: 3px solid transparent;
    padding: 9px 0 9px 12px;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--cyan-400);
    background: var(--ink-800);
  }
}