.page-faq {
  --faq-gap: 18px;
  --faq-shadow: 0 14px 34px rgba(11, 35, 28, .09);
  --faq-soft-shadow: 0 6px 18px rgba(11, 35, 28, .06);
  background: var(--paper);
  color: var(--black);
}

.page-faq [id] {
  scroll-margin-top: 108px;
}

.page-faq [data-filter-item].is-filtered-out {
  display: none;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 22px 0 52px;
  color: var(--warmwhite);
  background:
    radial-gradient(115% 90% at 88% 4%, rgba(31, 191, 117, .30), transparent 58%),
    radial-gradient(80% 70% at 4% 96%, rgba(139, 77, 255, .18), transparent 62%),
    linear-gradient(158deg, #0B231C 0%, #123B2D 58%, #0B231C 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(104deg, rgba(255, 249, 238, .055) 0 1px, transparent 1px 48px);
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .04em;
}

.page-faq .faq-hero .breadcrumb-item {
  color: rgba(255, 249, 238, .62);
}

.page-faq .faq-hero .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(255, 249, 238, .34);
}

.page-faq .faq-hero .breadcrumb-link {
  color: rgba(255, 249, 238, .82);
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumb-link:hover {
  color: var(--kiwi);
}

.page-faq .faq-hero .eyebrow {
  margin: 26px 0 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--kiwi);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.05rem, 7vw, 3.7rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--warmwhite);
}

.page-faq .faq-hero h1 span {
  display: inline-block;
  color: var(--kiwi);
  transform: skew(-3deg);
}

.page-faq .faq-lead {
  max-width: 46ch;
  margin: 0;
  font-size: .98rem;
  line-height: 1.72;
  color: rgba(255, 249, 238, .84);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-faq .faq-jump a {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid rgba(255, 249, 238, .22);
  border-radius: var(--r-pill);
  font-size: .82rem;
  color: var(--warmwhite);
  text-decoration: none;
  transition: background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  background: var(--kiwi);
  border-color: var(--kiwi);
  color: var(--ink);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 26px;
  margin-top: 8px;
}

.page-faq .faq-hero-media {
  margin: 0;
  border: 1px solid rgba(255, 249, 238, .16);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: 0 18px 42px rgba(0, 0, 0, .28);
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.page-faq .faq-hero-media .media-caption {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .06em;
  color: rgba(255, 249, 238, .68);
  background: rgba(11, 35, 28, .72);
}

/* ---------- 热门索引 ---------- */
.page-faq .faq-index {
  padding: 50px 0 44px;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-index .section-head {
  max-width: 620px;
}

.page-faq .faq-index .section-num {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .12em;
  color: var(--orange);
  margin: 0 0 8px;
}

.page-faq .faq-index .section-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.2vw, 2.1rem);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--black);
}

.page-faq .faq-index .section-sub {
  margin: 0;
  font-size: .92rem;
  color: var(--mist);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-index-list li {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-index-list a {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 13px 4px;
  color: var(--black);
  text-decoration: none;
  transition: color .18s var(--ease), background .18s var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--orange);
}

.page-faq .idx-no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--brand);
}

.page-faq .faq-index-list a:hover .idx-no {
  color: var(--orange);
}

.page-faq .idx-text {
  font-size: .93rem;
  line-height: 1.55;
}

/* ---------- 问答区 ---------- */
.page-faq .faq-body {
  padding: 34px 0 62px;
  background: linear-gradient(180deg, var(--paper) 0%, #EDE3D1 100%);
}

.page-faq .faq-layout {
  display: grid;
  gap: 20px;
}

.page-faq .faq-rail {
  padding: 16px;
  background: var(--warmwhite);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: var(--faq-soft-shadow);
}

.page-faq .rail-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-filter {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.page-faq .faq-filter::-webkit-scrollbar {
  height: 3px;
}

.page-faq .faq-filter::-webkit-scrollbar-thumb {
  background: var(--bench);
  border-radius: var(--r-pill);
}

.page-faq .faq-filter .filter-btn {
  flex: 0 0 auto;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--warmwhite);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: .82rem;
  line-height: 1.3;
  cursor: pointer;
  white-space: nowrap;
  transition: background .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-filter .filter-btn:hover {
  border-color: var(--brand);
}

.page-faq .faq-filter .filter-btn:active {
  transform: scale(.97);
}

.page-faq .faq-filter .filter-btn.is-active {
  background: var(--brand);
  border-color: var(--brand);
  color: var(--ink);
  font-weight: 700;
}

.page-faq .rail-note {
  margin: 12px 0 0;
  font-size: .78rem;
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .faq-blocks {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .qa-block {
  padding: 20px 18px;
  background: var(--warmwhite);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--faq-shadow);
}

.page-faq .qa-head {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line);
}

.page-faq .qa-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1;
  color: var(--brand);
}

.page-faq .qa-head-text h2 {
  margin: 2px 0 4px;
  font-family: var(--font-display);
  font-size: 1.14rem;
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--black);
}

.page-faq .qa-head-text p {
  margin: 0;
  font-size: .84rem;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .qa-list {
  margin-top: 4px;
}

.page-faq .qa-item {
  border-bottom: 1px solid var(--line);
}

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

.page-faq .qa-item summary {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 13px 0;
  list-style: none;
  cursor: pointer;
  font-size: .94rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--black);
}

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

.page-faq .qa-item summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--brand);
  transition: transform .18s var(--ease);
}

.page-faq .qa-item[open] summary::after {
  content: "–";
  color: var(--orange);
}

.page-faq .qa-item summary:hover {
  color: var(--orange);
}

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

.page-faq .qa-q {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--orange);
  padding-top: 3px;
}

.page-faq .qa-a {
  padding: 0 0 16px 34px;
}

.page-faq .qa-a p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--black);
}

/* ---------- 版本对照 ---------- */
.page-faq .version-compare {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.page-faq .vpanel {
  padding: 16px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
}

.page-faq .vpanel--stable {
  background: var(--bench);
  color: var(--ink);
}

.page-faq .vpanel--test {
  background: linear-gradient(160deg, var(--midnight), #0B231C);
  color: var(--warmwhite);
  border-color: rgba(255, 249, 238, .16);
}

.page-faq .vpanel .tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  font-weight: 700;
}

.page-faq .vpanel h3 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: 1.06rem;
  letter-spacing: -.01em;
}

.page-faq .vpanel ul {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: .86rem;
  line-height: 1.6;
}

.page-faq .vpanel li {
  padding-left: 16px;
  position: relative;
}

.page-faq .vpanel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--brand);
}

.page-faq .vpanel--test li::before {
  background: var(--lemon);
}

.page-faq .version-media {
  margin: 16px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-faq .version-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-faq .version-media .media-caption {
  padding: 9px 13px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .05em;
  color: var(--mist);
  background: var(--paper);
}

.page-faq .qa-more {
  margin: 14px 0 0;
  font-size: .84rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .qa-more a {
  color: var(--brand);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 191, 117, .4);
}

.page-faq .qa-more a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 联系区块 ---------- */
.page-faq .qa-block--contact {
  background: linear-gradient(155deg, #123B2D 0%, #0B231C 100%);
  border-color: rgba(255, 249, 238, .16);
  color: var(--warmwhite);
}

.page-faq .qa-block--contact .qa-head {
  border-bottom-color: rgba(255, 249, 238, .18);
}

.page-faq .qa-block--contact .qa-num {
  color: var(--lemon);
}

.page-faq .qa-block--contact .qa-head-text h2 {
  color: var(--warmwhite);
}

.page-faq .qa-block--contact .qa-head-text p {
  color: rgba(255, 249, 238, .66);
}

.page-faq .contact-grid {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.page-faq .contact-card {
  padding: 14px;
  border: 1px solid rgba(255, 249, 238, .16);
  border-radius: var(--r-md);
  background: rgba(255, 249, 238, .05);
}

.page-faq .contact-label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--kiwi);
}

.page-faq .contact-value {
  margin: 0 0 10px;
  font-size: .9rem;
  line-height: 1.65;
  color: var(--warmwhite);
  word-break: break-word;
}

.page-faq .contact-value--mono {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: .01em;
}

.page-faq .contact-hint {
  margin: 0;
  font-size: .78rem;
  line-height: 1.6;
  color: rgba(255, 249, 238, .66);
}

.page-faq .contact-card .btn {
  width: 100%;
  padding: 9px 14px;
  border: 0;
  border-radius: var(--r-pill);
  background: var(--orange);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: .86rem;
  font-weight: 700;
  cursor: pointer;
  transition: filter .18s var(--ease), transform .18s var(--ease);
}

.page-faq .contact-card .btn:hover {
  filter: brightness(1.06);
}

.page-faq .contact-card .btn:active {
  transform: scale(.98);
}

.page-faq .contact-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed rgba(255, 249, 238, .2);
  font-size: .82rem;
  line-height: 1.7;
  color: rgba(255, 249, 238, .74);
}

.page-faq .qa-more--onink {
  color: rgba(255, 249, 238, .62);
}

.page-faq .qa-more--onink a {
  color: var(--kiwi);
  border-bottom-color: rgba(168, 224, 95, .45);
}

.page-faq .qa-more--onink a:hover {
  color: var(--lemon);
  border-bottom-color: var(--lemon);
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-index-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 36px;
  }

  .page-faq .version-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .qa-block {
    padding: 24px 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 26px 0 64px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: end;
    gap: 40px;
  }

  .page-faq .faq-index {
    padding: 62px 0 54px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    padding: 18px;
  }

  .page-faq .faq-filter {
    flex-wrap: wrap;
    overflow: visible;
  }

  .page-faq .faq-filter .filter-btn {
    width: 100%;
    text-align: left;
  }

  .page-faq .qa-head-text h2 {
    font-size: 1.3rem;
  }
}

@media (min-width: 1080px) {
  .page-faq .qa-block {
    padding: 26px 30px;
  }

  .page-faq .faq-index-list a {
    padding: 15px 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}