.page-faq {
  --faq-rail-w: 216px;
  --faq-gap: clamp(20px, 3.2vw, 44px);
  --faq-body-text: rgba(247, 250, 248, 0.78);
  --faq-dim: rgba(247, 250, 248, 0.55);
  background: var(--c-green);
  color: var(--c-paper);
  overflow-x: clip;
}

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

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding: 18px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--faq-dim);
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.page-faq .breadcrumb a {
  color: var(--c-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--c-gold);
  border-bottom-color: var(--line-gold);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(20px, 3vw, 34px) 0 clamp(30px, 4.5vw, 54px);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: -10%;
  right: -10%;
  top: -20%;
  height: 150%;
  background-image:
    linear-gradient(to right, rgba(201, 216, 208, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(201, 216, 208, 0.08) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  align-items: center;
}

.page-faq .faq-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.page-faq .faq-kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--c-red);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 5.6vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--c-paper);
}

.page-faq .faq-hero .lede {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--faq-body-text);
}

.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 22px 0 0;
  padding: 1px;
  list-style: none;
  background: var(--line-soft);
}

.page-faq .faq-hero-stats li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 14px;
  background: var(--c-green-night);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  color: var(--faq-dim);
}

.page-faq .faq-hero-stats b {
  font-family: var(--font-mono);
  font-size: var(--fs-18);
  font-weight: 600;
  color: var(--c-gold);
  font-variant-numeric: tabular-nums;
}

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

.page-faq .faq-hero-figure .figure-frame {
  aspect-ratio: 10 / 7;
}

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

/* ---------- 工作区 ---------- */
.page-faq .faq-workspace {
  padding-top: clamp(28px, 4.5vw, 52px);
  padding-bottom: clamp(42px, 7vw, 90px);
}

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

.page-faq .faq-rail {
  border-top: 1px solid var(--line-soft);
  padding-top: 12px;
}

.page-faq .faq-rail-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--c-gold);
}

.page-faq .faq-rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-faq .faq-rail-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid var(--line-soft);
  color: var(--c-mist);
  font-size: var(--fs-14);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-rail-list a:hover,
.page-faq .faq-rail-list a:focus-visible {
  color: var(--c-gold);
  border-color: var(--line-gold);
}

.page-faq .faq-rail-list a.is-active {
  color: var(--c-gold);
  border-color: var(--line-gold);
  background: rgba(212, 175, 55, 0.09);
}

.page-faq .faq-rail-num {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: rgba(212, 175, 55, 0.72);
}

/* ---------- 区块通用 ---------- */
.page-faq .faq-block + .faq-block {
  margin-top: clamp(34px, 5.5vw, 62px);
  padding-top: clamp(26px, 4vw, 42px);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-block-head {
  display: grid;
  gap: 10px;
  max-width: 74ch;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-sec-num {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--c-gold);
}

.page-faq .faq-sec-num::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--line-gold), transparent);
}

.page-faq .faq-block-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.4vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.page-faq .faq-block-lede {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--faq-body-text);
}

.page-faq .faq-link {
  color: var(--c-gold);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--c-paper);
  border-bottom-color: var(--c-paper);
}

/* ---------- 步骤时间轴 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  padding-left: 32px;
  padding-bottom: 10px;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 28px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--c-gold), rgba(212, 175, 55, 0.1));
}

.page-faq .faq-step:last-child::before {
  display: none;
}

.page-faq .faq-step::after {
  content: "";
  position: absolute;
  left: 0;
  top: 15px;
  width: 13px;
  height: 13px;
  background: var(--c-red);
  box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.16);
}

.page-faq .faq-step details {
  border: 1px solid var(--line-soft);
  background: var(--c-green-night);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-step details[open] {
  border-color: var(--line-gold);
  background: linear-gradient(180deg, rgba(212, 175, 55, 0.07), rgba(7, 42, 32, 0.9));
}

.page-faq .faq-step summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 14px;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-16);
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-paper);
}

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

.page-faq .faq-step summary:hover {
  color: var(--c-gold);
}

.page-faq .faq-step-num {
  flex: none;
  padding: 2px 6px;
  border: 1px solid var(--line-gold);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--c-gold);
}

.page-faq .faq-step-title {
  flex: 1;
  min-width: 0;
}

.page-faq .faq-chev {
  flex: none;
  margin-left: auto;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--c-gold);
  border-bottom: 2px solid var(--c-gold);
  transform: rotate(45deg);
  transition: transform 0.25s var(--ease);
}

.page-faq details[open] > summary .faq-chev {
  transform: rotate(-135deg);
}

.page-faq .faq-step-body {
  padding: 0 14px 16px;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--faq-body-text);
}

.page-faq .faq-step-body p {
  margin: 0;
}

.page-faq .faq-step-points {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

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

.page-faq .faq-step-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--c-gold);
}

/* ---------- 关注定位 ---------- */
.page-faq .faq-locate {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-locate-cards {
  display: grid;
  gap: 10px;
}

.page-faq .faq-card {
  padding: 14px 16px;
  border-left: 2px solid var(--c-gold);
  background: var(--c-green-field);
}

.page-faq .faq-card h3 {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 6px;
  font-size: var(--fs-16);
  font-weight: 600;
  color: var(--c-paper);
}

.page-faq .faq-card h3 span {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--c-gold);
}

.page-faq .faq-card p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: rgba(247, 250, 248, 0.82);
}

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

.page-faq .faq-locate-figure .figure-frame {
  aspect-ratio: 3 / 2;
}

/* ---------- 文档目录 ---------- */
.page-faq .faq-docs {
  display: grid;
  gap: 10px;
}

.page-faq .faq-doc {
  display: block;
  padding: 16px;
  border: 1px solid var(--line-soft);
  background: var(--c-green-night);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-doc:hover,
.page-faq .faq-doc:focus-visible {
  border-color: var(--line-gold);
  background: rgba(212, 175, 55, 0.06);
}

.page-faq .faq-doc-num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: rgba(212, 175, 55, 0.72);
}

.page-faq .faq-doc-title {
  display: block;
  margin-top: 6px;
  font-family: var(--font-display);
  font-size: var(--fs-18);
  font-weight: 700;
  color: var(--c-paper);
}

.page-faq .faq-doc-desc {
  display: block;
  margin-top: 6px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--faq-body-text);
}

/* ---------- 常见问题 ---------- */
.page-faq .faq-accordion {
  display: grid;
  gap: 8px;
}

.page-faq .faq-q {
  border: 1px solid var(--line-soft);
  background: rgba(7, 42, 32, 0.62);
  transition: border-color 0.2s var(--ease);
}

.page-faq .faq-q[open] {
  border-color: var(--line-gold);
}

.page-faq .faq-q > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-16);
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-paper);
}

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

.page-faq .faq-q-mark {
  flex: none;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--line-gold);
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--c-gold);
}

.page-faq .faq-q-title {
  flex: 1;
  min-width: 0;
}

.page-faq .faq-q-body {
  padding: 0 16px 16px 16px;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--faq-body-text);
}

.page-faq .faq-q-body p {
  margin: 0;
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-support {
  display: grid;
  gap: 1px;
  padding: 1px;
  background: var(--line-soft);
}

.page-faq .faq-support-item {
  padding: 18px 16px;
  background: var(--c-green-night);
}

.page-faq .faq-support-label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--c-gold);
}

.page-faq .faq-support-value {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.6;
  color: var(--c-paper);
  word-break: break-word;
}

.page-faq .faq-support-note {
  margin: 14px 0 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--faq-body-text);
}

/* ---------- 更新说明 ---------- */
.page-faq .faq-update {
  display: grid;
  gap: 18px;
}

.page-faq .faq-version {
  padding: 16px 18px;
  border: 1px solid var(--line-gold);
  background: linear-gradient(140deg, rgba(212, 175, 55, 0.16), rgba(212, 175, 55, 0) 72%);
}

.page-faq .faq-version-num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-32);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--c-gold);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-version-label {
  display: block;
  margin-top: 6px;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--faq-dim);
}

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

.page-faq .faq-update-list li {
  position: relative;
  padding-left: 18px;
  font-size: var(--fs-16);
  line-height: 1.78;
  color: var(--faq-body-text);
}

.page-faq .faq-update-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 1px;
  background: var(--c-gold);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-hero .lede {
    font-size: var(--fs-18);
  }

  .page-faq .faq-q-body {
    padding-left: 54px;
  }
}

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

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

  .page-faq .faq-update {
    grid-template-columns: 220px minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-locate {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .page-faq .faq-hero {
    padding-top: clamp(28px, 4vw, 48px);
    padding-bottom: clamp(38px, 5vw, 68px);
  }
}

@media (min-width: 980px) {
  .page-faq .faq-workspace-inner {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    border-top: 0;
    border-left: 1px solid var(--line-mid);
    padding: 0 0 0 14px;
  }

  .page-faq .faq-rail-list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
  }

  .page-faq .faq-rail-list a {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    align-items: baseline;
    padding: 10px 8px 10px 0;
    border: 0;
    border-bottom: 1px solid var(--line-soft);
    background: transparent;
  }

  .page-faq .faq-rail-list a.is-active {
    background: rgba(212, 175, 55, 0.08);
    padding-left: 8px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-docs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}