.page-faq {
  --faq-panel: #121A23;
  --faq-panel-2: #0F1A26;
  --faq-hair: rgba(201, 206, 214, 0.16);
  --faq-hair-soft: rgba(201, 206, 214, 0.1);
  --faq-body: rgba(244, 241, 234, 0.78);
  --faq-body-dim: rgba(244, 241, 234, 0.58);
  background: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(3rem, 8vw, 6rem);
  overflow-x: hidden;
}

.page-faq .breadcrumbs {
  padding-top: 1.25rem;
}

.page-faq .breadcrumbs ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--graphite);
}

.page-faq .breadcrumbs a {
  color: var(--graphite);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--ruby-soft);
}

.page-faq .breadcrumbs li + li::before {
  content: "／";
  margin-right: 0.35rem;
  color: rgba(92, 102, 117, 0.7);
}

.page-faq .breadcrumbs [aria-current="page"] {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-head {
  position: relative;
  margin-top: 1.5rem;
  padding: clamp(2rem, 5vw, 3.5rem) 0 clamp(2rem, 4.5vw, 3rem);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(230, 59, 90, 0.18) 0%, rgba(11, 15, 20, 0) 58%),
    radial-gradient(90% 80% at 4% 100%, rgba(16, 42, 67, 0.85) 0%, rgba(11, 15, 20, 0) 60%);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-head::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: clamp(56px, 8vw, 120px);
  height: 3px;
  background: linear-gradient(90deg, var(--ruby), var(--amber));
}

.page-faq .page-head__index {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .page-head__title {
  margin: 0 0 1.15rem;
  max-width: 22ch;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.85rem, 5vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--white);
}

.page-faq .page-head__lede {
  margin: 0 0 1.5rem;
  max-width: 62ch;
  font-size: clamp(0.98rem, 1.4vw, 1.08rem);
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-head__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-top: clamp(1.75rem, 4vw, 3rem);
}

.page-faq .faq-toc {
  border: 1px solid var(--faq-hair);
  background: var(--faq-panel-2);
  padding: 1.1rem 1.15rem 1.2rem;
}

.page-faq .faq-toc__title {
  margin: 0 0 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--graphite);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.page-faq .faq-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 0.45rem;
  padding: 0.45rem 0.6rem;
  font-size: 0.88rem;
  line-height: 1.4;
  color: var(--faq-body);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  color: var(--white);
  border-left-color: var(--ruby);
  background: rgba(230, 59, 90, 0.1);
}

.page-faq .faq-toc__num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--amber);
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--faq-hair);
  scroll-margin-top: 6rem;
}

.page-faq .faq-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .section-head {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  margin: 0 0 1.15rem;
}

.page-faq .section-head__num {
  margin: 0;
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  color: var(--ruby);
}

.page-faq .section-head__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.25rem, 2.5vw, 1.8rem);
  line-height: 1.35;
  color: var(--white);
}

.page-faq .faq-text {
  margin: 0 0 1.6rem;
  max-width: 68ch;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--faq-body);
}

/* ---------- 入口卡 ---------- */
.page-faq .faq-entry-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}

.page-faq .faq-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.3rem 1.3rem 1.35rem;
  background: var(--faq-panel);
  border: 1px solid var(--faq-hair);
  border-left: 3px solid var(--line);
  transition: border-color 0.25s ease, transform 0.25s ease, background-color 0.25s ease;
}

.page-faq .faq-card--ruby { border-left-color: var(--ruby); }
.page-faq .faq-card--amber { border-left-color: var(--amber); }
.page-faq .faq-card--emerald { border-left-color: var(--emerald); }
.page-faq .faq-card--paper { border-left-color: var(--paper); }

.page-faq .faq-card:hover {
  background: #16202B;
  transform: translateY(-2px);
}

.page-faq .faq-card__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--graphite);
}

.page-faq .faq-card__title {
  margin: 0;
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--white);
}

.page-faq .faq-card__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--faq-body-dim);
}

.page-faq .faq-card .link-arrow {
  margin-top: auto;
  padding-top: 0.6rem;
  font-size: 0.85rem;
  color: var(--ruby-soft);
  text-decoration: none;
  align-self: flex-start;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-card .link-arrow:hover,
.page-faq .faq-card .link-arrow:focus-visible {
  color: var(--white);
  border-bottom-color: var(--ruby);
}

/* ---------- 旧版切换 ---------- */
.page-faq .faq-switch {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
  margin-bottom: 1.5rem;
}

.page-faq .faq-switch__col {
  padding: 1.25rem 1.25rem 0.65rem;
  background: linear-gradient(180deg, rgba(16, 42, 67, 0.55) 0%, rgba(18, 26, 35, 0.9) 100%);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-switch__label {
  margin: 0 0 0.9rem;
}

.page-faq .faq-steps {
  list-style: none;
  counter-reset: st;
  margin: 0;
  padding: 0;
}

.page-faq .faq-steps > li {
  counter-increment: st;
  position: relative;
  padding: 0.72rem 0 0.72rem 2.85rem;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--faq-body);
  border-bottom: 1px dashed var(--faq-hair-soft);
}

.page-faq .faq-steps > li:last-child {
  border-bottom: 0;
}

.page-faq .faq-steps > li::before {
  content: counter(st, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.82rem;
  width: 2.15rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.5;
  color: var(--amber);
  border: 1px solid rgba(217, 162, 75, 0.38);
  background: rgba(217, 162, 75, 0.07);
}

.page-faq .callout {
  margin: 0 0 0.4rem;
  padding: 1rem 1.15rem;
  border-left: 3px solid var(--amber);
  background: rgba(217, 162, 75, 0.08);
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--paper);
}

.page-faq .callout p {
  margin: 0;
}

/* ---------- 图片 ---------- */
.page-faq .figure {
  margin: 1.6rem 0 0;
  background: var(--faq-panel-2);
  border: 1px solid var(--faq-hair);
  overflow: hidden;
}

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

.page-faq .figure__caption {
  display: flex;
  gap: 0.6rem;
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--faq-hair-soft);
  background: rgba(11, 15, 20, 0.55);
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--faq-body-dim);
}

.page-faq .figure__index {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--ruby-soft);
}

/* ---------- 资源分类 ---------- */
.page-faq .faq-res-grid {
  list-style: none;
  margin: 0 0 1.6rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.page-faq .faq-res-item {
  padding: 0.95rem 1rem 1rem;
  background: var(--faq-panel);
  border: 1px solid var(--faq-hair);
  border-top: 2px solid var(--sea);
  transition: border-top-color 0.25s ease, background-color 0.25s ease;
}

.page-faq .faq-res-item:hover {
  border-top-color: var(--emerald);
  background: #16202B;
}

.page-faq .faq-res-item__title {
  margin: 0 0 0.35rem;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--white);
}

.page-faq .faq-res-item p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--faq-body-dim);
}

/* ---------- 导出 ---------- */
.page-faq .faq-export {
  padding: 1.25rem 1.25rem 1.35rem;
  background: var(--faq-panel-2);
  border: 1px solid var(--faq-hair);
  border-left: 3px solid var(--ruby);
}

.page-faq .faq-export__note {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--faq-body);
}

.page-faq .faq-export__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq .faq-export__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.7rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px dashed var(--faq-hair-soft);
}

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

.page-faq .faq-export__code {
  flex: none;
  min-width: 4.6rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--amber);
  border: 1px solid rgba(217, 162, 75, 0.35);
  padding: 0.15rem 0.5rem;
  text-align: center;
}

.page-faq .faq-export__desc {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--faq-body-dim);
}

/* ---------- 权益场景 ---------- */
.page-faq .faq-scene-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-scene {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--faq-hair-soft);
}

.page-faq .faq-scene__num {
  flex: none;
  width: 2.1rem;
  height: 2.1rem;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink);
  background: var(--amber);
  clip-path: polygon(0 0, 100% 0, 100% 72%, 72% 100%, 0 100%);
}

.page-faq .faq-scene__title {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.page-faq .faq-scene p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--faq-body-dim);
}

/* ---------- 账号安全 ---------- */
.page-faq .faq-check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-faq .faq-check-list li {
  position: relative;
  padding: 0.85rem 1rem 0.85rem 2.4rem;
  background: rgba(31, 138, 91, 0.07);
  border: 1px solid rgba(31, 138, 91, 0.28);
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--faq-body);
}

.page-faq .faq-check-list li::before {
  content: "";
  position: absolute;
  left: 1rem;
  top: 1.15rem;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--emerald);
  transform: rotate(45deg);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-acc {
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-acc details {
  border-bottom: 1px solid var(--faq-hair-soft);
}

.page-faq .faq-acc summary {
  position: relative;
  padding: 1.05rem 2.6rem 1.05rem 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.65;
  color: var(--white);
  cursor: pointer;
  list-style: none;
  transition: color 0.2s ease;
}

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

.page-faq .faq-acc summary::after {
  content: "";
  position: absolute;
  right: 0.4rem;
  top: 1.45rem;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--ruby);
  border-bottom: 2px solid var(--ruby);
  transform: rotate(45deg);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-acc details[open] summary {
  color: var(--ruby-soft);
}

.page-faq .faq-acc details[open] summary::after {
  transform: rotate(-135deg);
  border-color: var(--amber);
}

.page-faq .faq-acc summary:hover {
  color: var(--ruby-soft);
}

.page-faq .faq-acc details p {
  margin: 0 0 1.15rem;
  padding-right: 1.5rem;
  max-width: 68ch;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--faq-body-dim);
}

/* ---------- 帮助条 ---------- */
.page-faq .faq-help {
  margin-top: 2.25rem;
  padding: clamp(1.35rem, 3.5vw, 2.25rem);
  display: flex;
  flex-wrap: wrap;
  gap: 1.35rem;
  align-items: center;
  justify-content: space-between;
  background: var(--refract);
  border: 1px solid rgba(230, 59, 90, 0.35);
  border-top: 3px solid var(--ruby);
}

.page-faq .faq-help__text {
  flex: 1 1 20rem;
  min-width: 0;
}

.page-faq .faq-help__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
  color: var(--white);
}

.page-faq .faq-help__desc {
  margin: 0 0 0.6rem;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--faq-body);
}

.page-faq .faq-help__contact {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--amber);
  word-break: break-word;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-entry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-faq .faq-switch {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .faq-res-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.55rem;
  }
  .page-faq .faq-res-item {
    padding: 0.85rem 0.8rem 0.9rem;
  }
  .page-faq .faq-res-item__title {
    font-size: 0.92rem;
  }
  .page-faq .faq-res-item p {
    font-size: 0.8rem;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: clamp(2.5rem, 5vw, 4.5rem);
    align-items: start;
  }
  .page-faq .faq-toc {
    position: sticky;
    top: 5.5rem;
    background: transparent;
    border: 0;
    border-left: 1px solid var(--faq-hair);
    padding: 0 0 0 1.15rem;
  }
  .page-faq .faq-toc__title {
    color: var(--faq-body-dim);
  }
  .page-faq .faq-toc__list {
    flex-direction: column;
    gap: 0.1rem;
  }
  .page-faq .faq-toc__list a {
    width: 100%;
    padding: 0.42rem 0.5rem;
    font-size: 0.86rem;
  }
  .page-faq .page-head__title {
    max-width: 24ch;
  }
}

@media (max-width: 420px) {
  .page-faq .faq-res-grid {
    grid-template-columns: 1fr;
  }
  .page-faq .faq-export__row {
    flex-direction: column;
    gap: 0.35rem;
  }
  .page-faq .faq-scene {
    gap: 0.75rem;
  }
}