.page-faq {
  --faq-pad: 20px;
  --faq-line: rgba(20, 58, 85, .9);
  --faq-panel: rgba(10, 36, 56, .72);
  --faq-gap: 18px;
  color: var(--sand);
  background: var(--ink-deep);
  overflow-x: hidden;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

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

.page-faq .breadcrumb {
  margin-bottom: 18px;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--rule);
}

.page-faq .breadcrumb a {
  color: var(--sand);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: 30px 0 40px;
  border-bottom: 1px solid var(--rule);
  background:
    radial-gradient(120% 92% at 90% -8%, rgba(255, 107, 26, .18), transparent 62%),
    radial-gradient(90% 70% at 4% 100%, rgba(44, 242, 207, .09), transparent 68%),
    linear-gradient(180deg, var(--panel-2), var(--ink-deep));
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-hero__copy h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 8vw, 66px);
  line-height: 1.12;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-faq .faq-hero__lede {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--sand);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 26px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

.page-faq .faq-hero__stat dt {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-faq .faq-hero__stat dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--white);
}

.page-faq .faq-hero__figure {
  position: relative;
  min-height: 180px;
}

.page-faq .faq-hero__mark {
  position: absolute;
  top: -26px;
  right: 0;
  z-index: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(110px, 30vw, 210px);
  line-height: .78;
  color: rgba(255, 107, 26, .14);
  -webkit-text-stroke: 2px rgba(255, 107, 26, .5);
  pointer-events: none;
  user-select: none;
}

.page-faq .faq-hero__media {
  position: relative;
  z-index: 1;
  margin: 0;
  border: 1px solid var(--rule);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
  background: var(--panel);
}

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

/* ---------- 通用区块 ---------- */

.page-faq .faq-sect {
  padding: 40px 0;
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-sect--alt {
  background: linear-gradient(180deg, rgba(10, 36, 56, .62), rgba(5, 23, 36, 0) 86%);
}

.page-faq .faq-sect__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 4.6vw, 40px);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .faq-sect__head h2::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 4px;
  margin-right: 12px;
  vertical-align: .28em;
  background: var(--orange);
}

.page-faq .faq-sect__head p {
  margin: 12px 0 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--sand);
}

.page-faq .faq-sect__head p a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 242, 207, .45);
}

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

.page-faq .faq-sect__body {
  margin-top: 24px;
}

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

/* ---------- 索引簇 ---------- */

.page-faq .faq-index {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__item a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num label"
    "num hint";
  gap: 2px 14px;
  padding: 16px 16px 18px;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--orange);
  background: var(--faq-panel);
  text-decoration: none;
  transition: transform .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-index__item a:hover,
.page-faq .faq-index__item a:focus-visible {
  transform: translateY(-3px);
  background: var(--panel);
  border-color: var(--orange);
}

.page-faq .faq-index__num {
  grid-area: num;
  align-self: start;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--orange);
  letter-spacing: .04em;
}

.page-faq .faq-index__label {
  grid-area: label;
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.4;
}

.page-faq .faq-index__hint {
  grid-area: hint;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 排查步骤 ---------- */

.page-faq .faq-steps {
  counter-reset: faqstep;
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  padding: 15px 16px 15px 54px;
  border: 1px solid var(--rule);
  background: var(--faq-panel);
  font-size: 15px;
  line-height: 1.85;
  color: var(--sand);
}

.page-faq .faq-step::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 16px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--cyan);
}

.page-faq .faq-step strong {
  display: block;
  margin-bottom: 4px;
  color: var(--white);
  font-weight: 700;
}

/* ---------- 流程图 ---------- */

.page-faq .faq-figure {
  margin: 22px 0 0;
  border: 1px solid var(--rule);
  background: var(--panel-2);
  padding: 12px;
}

.page-faq .faq-figure__media {
  margin: 0;
  border: 1px solid var(--line, var(--rule));
  overflow: hidden;
}

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

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--mist);
}

/* ---------- 双栏示意 ---------- */

.page-faq .faq-split {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-split__col {
  padding: 16px;
  border: 1px solid var(--rule);
  background: var(--faq-panel);
}

.page-faq .faq-split__col--report {
  border-top: 3px solid var(--orange);
}

.page-faq .faq-split__col--video {
  border-top: 3px solid var(--cyan);
}

.page-faq .faq-split__col p {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--sand);
}

/* ---------- 面板组 ---------- */

.page-faq .faq-panel {
  padding: 18px;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--rule);
  background: var(--faq-panel);
  transition: border-color .2s var(--ease);
}

.page-faq .faq-panel:hover {
  border-left-color: var(--cyan);
}

.page-faq .faq-panel h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

.page-faq .faq-panel p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--sand);
}

/* ---------- 播放检查清单 ---------- */

.page-faq .faq-checks {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-checks li {
  position: relative;
  padding: 14px 16px 14px 40px;
  border: 1px solid var(--rule);
  background: var(--faq-panel);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--sand);
}

.page-faq .faq-checks strong {
  color: var(--white);
  font-weight: 700;
}

.page-faq .faq-dot {
  position: absolute;
  left: 17px;
  top: 21px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.page-faq .faq-dot--cyan {
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(44, 242, 207, .18);
}

.page-faq .faq-dot--amber {
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 26, .18);
}

/* ---------- 版本卡 ---------- */

.page-faq .faq-versions {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-versions__item {
  padding: 16px;
  border: 1px solid var(--rule);
  background: var(--faq-panel);
}

.page-faq .faq-versions__item--now {
  border-color: var(--orange);
  box-shadow: inset 0 0 0 1px rgba(255, 107, 26, .22);
}

.page-faq .faq-versions__key {
  display: inline-block;
  padding: 3px 9px;
  background: var(--paper);
  color: var(--ink-deep);
  font-family: var(--font-en);
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.page-faq .faq-versions__item p {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--sand);
}

/* ---------- 联系准备 ---------- */

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

.page-faq .faq-prep li {
  position: relative;
  padding: 12px 14px 12px 44px;
  border: 1px solid var(--rule);
  background: var(--faq-panel);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--sand);
}

.page-faq .faq-prep li::before {
  counter-increment: prep;
  content: counter(prep);
  position: absolute;
  left: 14px;
  top: 12px;
  width: 20px;
  height: 20px;
  line-height: 20px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-deep);
  background: var(--cyan);
}

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

.page-faq .faq-contact__row {
  padding: 14px 16px;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--orange);
  background: var(--faq-panel);
}

.page-faq .faq-contact__key {
  display: block;
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--mist);
  margin-bottom: 8px;
}

.page-faq .faq-contact__val {
  display: block;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--white);
  word-break: break-all;
}

.page-faq .faq-contact__note {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--mist);
}

.page-faq .faq-contact__more {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--sand);
}

.page-faq .faq-contact__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 242, 207, .45);
}

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

/* ---------- 问答抽屉 ---------- */

.page-faq .faq-sect--qa {
  border-bottom: 0;
}

.page-faq .faq-qa__layout {
  display: grid;
  gap: var(--faq-gap);
  margin-top: 24px;
}

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

.page-faq .faq-qa__filters .filter-chip {
  padding: 8px 13px;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--sand);
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.4;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-qa__filters .filter-chip:hover,
.page-faq .faq-qa__filters .filter-chip:focus-visible {
  color: var(--white);
  border-color: var(--orange);
}

.page-faq .faq-qa__filters .filter-chip.is-active,
.page-faq .faq-qa__filters .filter-chip[aria-pressed="true"] {
  color: var(--ink-deep);
  background: var(--orange);
  border-color: var(--orange);
}

.page-faq .faq-drawers {
  display: grid;
  gap: 8px;
}

.page-faq .faq-drawer {
  border: 1px solid var(--rule);
  background: var(--faq-panel);
  padding: 0;
  transition: border-color .2s var(--ease);
}

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

.page-faq .faq-drawer summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 10px;
  padding: 14px 14px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-drawer summary:hover .faq-drawer__q {
  color: var(--orange);
}

.page-faq .faq-drawer__tag {
  align-self: start;
  margin-top: 2px;
  padding: 2px 7px;
  background: var(--paper);
  color: var(--ink-deep);
  font-family: var(--font-en);
  font-size: 11.5px;
  letter-spacing: .1em;
  white-space: nowrap;
}

.page-faq .faq-drawer__q {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.65;
  color: var(--white);
  transition: color .2s var(--ease);
}

.page-faq .faq-drawer__sign {
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.3;
  color: var(--mist);
  transition: transform .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-drawer[open] .faq-drawer__sign {
  color: var(--cyan);
  transform: rotate(45deg);
}

.page-faq .faq-drawer__body {
  padding: 0 16px 16px;
  border-top: 1px solid var(--rule);
  margin-top: 0;
}

.page-faq .faq-drawer__body p {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--sand);
}

/* ---------- 断点 ---------- */

@media (min-width: 700px) {
  .page-faq {
    --faq-pad: 28px;
  }

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

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

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

  .page-faq .faq-drawer summary {
    padding: 16px 18px;
  }

  .page-faq .faq-drawer__body {
    padding: 0 18px 18px;
  }
}

@media (min-width: 1000px) {
  .page-faq {
    --faq-pad: 40px;
    --faq-gap: 22px;
  }

  .page-faq .faq-hero {
    padding: 44px 0 56px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: center;
    gap: 44px;
  }

  .page-faq .faq-hero__stats {
    max-width: 480px;
  }

  .page-faq .faq-sect {
    padding: 56px 0;
  }

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

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

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

  .page-faq .faq-figure {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 16px;
    align-items: end;
  }

  .page-faq .faq-figure figcaption {
    margin-top: 0;
    padding-bottom: 6px;
  }

  .page-faq .faq-qa__layout {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-faq .faq-qa__filters {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }

  .page-faq .faq-qa__filters .filter-chip {
    text-align: left;
    border-left: 3px solid var(--rule);
  }

  .page-faq .faq-qa__filters .filter-chip.is-active,
  .page-faq .faq-qa__filters .filter-chip[aria-pressed="true"] {
    border-left-color: var(--ink-deep);
  }

  .page-faq .faq-drawer__q {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__item a,
  .page-faq .faq-drawer__sign,
  .page-faq .faq-drawer__q,
  .page-faq .faq-panel,
  .page-faq .faq-qa__filters .filter-chip {
    transition: none;
  }
}

.page-faq {
  --line: currentColor;
}