.page-faq {
  background:
    radial-gradient(120% 70% at 88% -10%, rgba(53, 240, 200, .12), transparent 62%),
    var(--ink-900);
  color: var(--paper);
  overflow-x: clip;
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.25rem, 3.5vw, 2rem) 0 clamp(2rem, 5vw, 3.5rem);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -25%;
  right: -20%;
  width: 78%;
  height: 160%;
  background: linear-gradient(158deg, rgba(53, 240, 200, .20), rgba(255, 92, 138, .13) 55%, transparent 80%);
  clip-path: polygon(42% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}
.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: center;
}
.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  font-size: .8rem;
  color: var(--light-dim);
  margin-bottom: 1rem;
}
.page-faq .crumbs a {
  color: var(--neon);
  text-decoration: none;
}
.page-faq .crumbs a:hover {
  text-decoration: underline;
}
.page-faq .crumbs__sep {
  color: rgba(214, 231, 240, .35);
}
.page-faq .eyebrow {
  margin: 0 0 .6rem;
  color: var(--neon);
  font-size: .72rem;
  letter-spacing: .16em;
}
.page-faq .faq-panel .eyebrow {
  color: var(--neon-deep);
}
.page-faq .faq-panel--dark .eyebrow {
  color: var(--neon);
}
.page-faq h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 6.4vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  margin: 0 0 1rem;
}
.page-faq .faq-br {
  display: none;
}
.page-faq .faq-hero .lede {
  max-width: 34em;
  margin: 0 0 1.5rem;
  color: rgba(246, 238, 223, .82);
  font-size: clamp(.96rem, 1.6vw, 1.06rem);
  line-height: 1.8;
}
.page-faq .faq-jump {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 0;
  padding: 0;
}
.page-faq .faq-jump a {
  display: inline-block;
  padding: .42rem .85rem;
  border-radius: 999px;
  border: 1px solid var(--glass-line);
  background: var(--glass-soft);
  color: var(--paper);
  font-size: .84rem;
  text-decoration: none;
  transition: border-color .2s, color .2s, background .2s;
}
.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  border-color: var(--neon);
  color: var(--neon);
  background: rgba(53, 240, 200, .12);
}
.page-faq .faq-hero__figure {
  margin: 0;
}
.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border-radius: var(--r-l);
  border: 1px solid var(--glass-line);
  box-shadow: var(--dock-shadow);
}
.page-faq .faq-hero__figure figcaption {
  margin-top: .7rem;
  font-size: .78rem;
  line-height: 1.6;
  color: var(--light-dim);
}

/* ---------- 双栏骨架与路径索引 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}
.page-faq .faq-rail__title {
  margin: 0 0 .7rem;
  font-size: .76rem;
  letter-spacing: .14em;
  color: var(--light-dim);
}
.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}
.page-faq .faq-rail__list a {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .35rem .7rem;
  border: 1px solid rgba(168, 199, 195, .28);
  border-radius: 999px;
  background: rgba(168, 199, 195, .08);
  color: var(--paper);
  font-size: .82rem;
  text-decoration: none;
}
.page-faq .faq-rail__num {
  font-size: .7rem;
  color: var(--gold);
}
.page-faq .faq-rail__note {
  margin: 1rem 0 0;
  font-size: .78rem;
  line-height: 1.75;
  color: var(--light-dim);
}
.page-faq .faq-main {
  min-width: 0;
}

/* ---------- 面板 ---------- */
.page-faq .faq-sec {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
  padding: clamp(1.1rem, 3vw, 2.1rem);
  border-radius: var(--r-l);
}
.page-faq .faq-panel {
  --qa-line: rgba(16, 32, 46, .14);
  --qa-ink: var(--ink-text);
  --qa-dim: var(--muted);
  --qa-accent: var(--neon-deep);
  background: var(--paper);
  color: var(--ink-text);
  box-shadow: var(--dock-shadow);
}
.page-faq .faq-panel--dark {
  --qa-line: rgba(246, 238, 223, .18);
  --qa-ink: var(--paper);
  --qa-dim: var(--light-dim);
  --qa-accent: var(--neon);
  background: linear-gradient(155deg, var(--ink-800), var(--ink-950) 72%);
  color: var(--paper);
  border: 1px solid var(--glass-line);
}
.page-faq .faq-sec__head {
  max-width: 44rem;
  margin-bottom: 1.35rem;
}
.page-faq .faq-sec h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  line-height: 1.22;
  letter-spacing: -.015em;
  margin: 0 0 .6rem;
  color: inherit;
}
.page-faq .faq-lede {
  margin: 0;
  font-size: .97rem;
  line-height: 1.78;
  color: var(--qa-dim);
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-steps {
  list-style: none;
  display: grid;
  gap: 1rem;
  margin: 0 0 1.5rem;
  padding: 0;
}
.page-faq .faq-steps li {
  position: relative;
  padding-left: 2.6rem;
}
.page-faq .faq-steps__dot {
  position: absolute;
  left: 0;
  top: 0;
  width: 1.9rem;
  height: 1.9rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(53, 240, 200, .16);
  border: 1px solid rgba(11, 122, 104, .45);
  color: var(--neon-deep);
  font-size: .82rem;
}
.page-faq .faq-steps h3 {
  margin: .15rem 0 .3rem;
  font-size: 1rem;
}
.page-faq .faq-steps p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 三类入口卡 ---------- */
.page-faq .faq-entry-grid {
  display: grid;
  gap: .85rem;
  margin-bottom: 1.5rem;
}
.page-faq .faq-entry {
  padding: 1rem;
  border-radius: var(--r-m);
  border: 1px solid rgba(16, 32, 46, .12);
  background: rgba(14, 47, 74, .05);
}
.page-faq .faq-entry h3 {
  margin: 0 0 .4rem;
  font-size: .97rem;
  color: var(--ink-text);
}
.page-faq .faq-entry p {
  margin: 0;
  font-size: .87rem;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 问答手风琴 ---------- */
.page-faq .qa-list {
  border-top: 1px solid var(--qa-line);
}
.page-faq .qa {
  border-bottom: 1px solid var(--qa-line);
}
.page-faq .qa summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: .55rem;
  padding: .85rem 0;
  font-size: .96rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--qa-ink);
}
.page-faq .qa summary::-webkit-details-marker {
  display: none;
}
.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  padding-left: .5rem;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--qa-accent);
}
.page-faq .qa[open] summary::after {
  content: "–";
}
.page-faq .qa summary:hover {
  color: var(--qa-accent);
}
.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--qa-accent);
  outline-offset: 3px;
  border-radius: 4px;
}
.page-faq .qa__body {
  padding: 0 0 1rem;
}
.page-faq .qa__body p {
  margin: 0;
  font-size: .93rem;
  line-height: 1.82;
  color: var(--qa-dim);
}
.page-faq .qa__body a {
  color: var(--qa-accent);
  text-decoration: underline;
}
.page-faq .qtag {
  flex: 0 0 auto;
  font-size: .7rem;
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: .04em;
  padding: .05rem .45rem;
  border-radius: 999px;
  border: 1px solid currentColor;
}
.page-faq .qtag--login {
  color: var(--neon-deep);
  background: rgba(53, 240, 200, .14);
}
.page-faq .qtag--query {
  color: var(--gold-deep);
  background: rgba(242, 196, 109, .24);
}
.page-faq .qtag--tool {
  color: #B0335C;
  background: rgba(255, 92, 138, .14);
}
.page-faq .qtag--device {
  color: var(--ok-deep);
  background: rgba(79, 157, 122, .16);
}

/* ---------- 换设备 ---------- */
.page-faq .faq-device {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}
.page-faq .faq-num-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .95rem;
}
.page-faq .faq-num-list li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: .65rem;
}
.page-faq .faq-num-list .mono {
  font-size: .78rem;
  padding-top: .22rem;
  color: var(--gold-deep);
}
.page-faq .faq-num-list h3 {
  margin: 0 0 .2rem;
  font-size: .95rem;
  color: var(--ink-text);
}
.page-faq .faq-num-list p {
  margin: 0;
  font-size: .87rem;
  line-height: 1.72;
  color: var(--muted);
}
.page-faq .faq-device__figure {
  margin: 0;
}
.page-faq .faq-device__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
  border-radius: var(--r-m);
  border: 1px solid rgba(16, 32, 46, .14);
}
.page-faq .faq-device__figure figcaption {
  margin-top: .55rem;
  font-size: .77rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 状态颜色 ---------- */
.page-faq .faq-status {
  display: grid;
  gap: .9rem;
  margin-bottom: 1.5rem;
}
.page-faq .faq-status__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .8rem;
  padding: 1rem;
  border-radius: var(--r-m);
  border: 1px solid var(--glass-line);
  background: rgba(168, 199, 195, .08);
}
.page-faq .faq-status__dot {
  width: .85rem;
  height: .85rem;
  margin-top: .45rem;
  border-radius: 50%;
}
.page-faq .faq-status__item--ok .faq-status__dot {
  background: var(--ok);
  box-shadow: 0 0 0 4px rgba(79, 157, 122, .22);
}
.page-faq .faq-status__item--warn .faq-status__dot {
  background: var(--warn);
  box-shadow: 0 0 0 4px rgba(217, 138, 78, .22);
}
.page-faq .faq-status__item h3 {
  margin: 0 0 .3rem;
  font-size: 1rem;
  color: var(--paper);
}
.page-faq .faq-status__item p {
  margin: 0;
  font-size: .89rem;
  line-height: 1.76;
  color: var(--light-dim);
}

/* ---------- 联系人工 ---------- */
.page-faq .faq-when {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: grid;
  gap: .6rem;
}
.page-faq .faq-when li {
  position: relative;
  padding-left: 1.35rem;
  font-size: .93rem;
  line-height: 1.72;
  color: var(--ink-text);
}
.page-faq .faq-when li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6rem;
  width: .5rem;
  height: .5rem;
  background: var(--neon-deep);
  transform: rotate(45deg);
}
.page-faq .faq-contact {
  display: grid;
  gap: .9rem;
  margin-bottom: 1rem;
  padding: 1rem;
  border-radius: var(--r-m);
  border: 1px solid rgba(16, 32, 46, .1);
  background: rgba(14, 47, 74, .055);
}
.page-faq .faq-contact__k {
  margin: 0 0 .2rem;
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--muted);
}
.page-faq .faq-contact__v {
  margin: 0;
  font-size: .95rem;
  line-height: 1.6;
  color: var(--ink-text);
  word-break: break-word;
}
.page-faq .faq-contact__note {
  margin: 0;
  font-size: .85rem;
  line-height: 1.78;
  color: var(--muted);
}
.page-faq .faq-contact__note a {
  color: var(--neon-deep);
  text-decoration: underline;
}

/* ---------- 继续了解 ---------- */
.page-faq .faq-next {
  display: grid;
  gap: .75rem;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}
.page-faq .faq-next__item {
  display: block;
  padding: 1rem 1.1rem;
  border-radius: var(--r-m);
  border: 1px solid var(--glass-line);
  background: var(--glass-soft);
  color: var(--paper);
  font-size: .97rem;
  font-weight: 600;
  text-decoration: none;
  transition: border-color .2s, background .2s, transform .2s;
}
.page-faq .faq-next__item span {
  display: block;
  margin-top: .35rem;
  font-size: .81rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--light-dim);
}
.page-faq .faq-next__item:hover,
.page-faq .faq-next__item:focus-visible {
  border-color: var(--neon);
  background: rgba(53, 240, 200, .1);
  transform: translateY(-2px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-entry-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .faq-next {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

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

@media (min-width: 820px) {
  .page-faq .faq-device {
    grid-template-columns: minmax(0, 1fr) minmax(0, .85fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-br {
    display: inline;
  }
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
  .page-faq .faq-layout {
    grid-template-columns: minmax(180px, 230px) minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-rail {
    position: sticky;
    top: 5.5rem;
  }
  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 0;
    border-left: 1px solid rgba(53, 240, 200, .30);
  }
  .page-faq .faq-rail__list a {
    position: relative;
    display: flex;
    padding: .6rem 0 .6rem .9rem;
    border: none;
    border-radius: 0;
    background: none;
    color: var(--light-dim);
  }
  .page-faq .faq-rail__list a::before {
    content: "";
    position: absolute;
    left: -4px;
    top: 50%;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--ink-900);
    border: 1px solid rgba(53, 240, 200, .6);
    transform: translateY(-50%);
  }
  .page-faq .faq-rail__list a:hover,
  .page-faq .faq-rail__list a:focus-visible {
    color: var(--neon);
  }
  .page-faq .faq-rail__list a:hover::before,
  .page-faq .faq-rail__list a:focus-visible::before {
    background: var(--neon);
  }
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
  }
  .page-faq .faq-steps li {
    padding-left: 0;
    padding-top: 2.5rem;
  }
  .page-faq .faq-steps li:not(:last-child)::before {
    content: "";
    position: absolute;
    top: .95rem;
    left: 2.3rem;
    right: -.75rem;
    height: 1px;
    background: repeating-linear-gradient(90deg, rgba(11, 122, 104, .45) 0 6px, transparent 6px 14px);
  }
  .page-faq .faq-steps__dot {
    top: 0;
    left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump a,
  .page-faq .faq-next__item {
    transition: none;
  }
  .page-faq .faq-next__item:hover {
    transform: none;
  }
}