/* ===== 帮助中心 页面专属样式 ===== */
.page-faq {
  --faq-side: 258px;
  --faq-hair: rgba(196, 154, 88, 0.16);
  --faq-card: rgba(22, 36, 59, 0.72);
  --faq-glow: rgba(228, 192, 120, 0.18);
  padding-bottom: clamp(3.5rem, 8vw, 6.5rem);
}

.page-faq .breadcrumb {
  margin-top: clamp(1rem, 2.5vw, 1.75rem);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  margin-top: clamp(1.5rem, 4vw, 2.75rem);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: var(--gap-lg);
  align-items: center;
}

.page-faq .faq-hero__media {
  margin: 0;
  box-shadow: var(--shadow-panel);
}

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

.page-faq .faq-hero__text h1 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2.05rem, 5.2vw, 3.4rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--c-sand);
  margin: 0.6rem 0 1.1rem;
}

.page-faq .faq-hero__text .lead {
  max-width: 48ch;
  margin: 0 0 1.6rem;
  font-size: clamp(0.96rem, 1.5vw, 1.08rem);
  line-height: 1.85;
  color: var(--text-soft);
}

/* 首屏搜索 */
.page-faq .faq-search {
  position: relative;
  padding: 1rem 1.1rem 1.05rem;
  border: 1px solid var(--line-gold);
  background: linear-gradient(180deg, rgba(16, 27, 45, 0.92), rgba(11, 14, 19, 0.92));
}

.page-faq .faq-search::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--metal-line);
}

.page-faq .faq-search__input,
.page-faq .faq-search__input.site-search__input {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line-gold-soft);
  border-radius: 0;
  color: var(--c-sand);
  font-family: var(--font-sans);
  font-size: 0.98rem;
  line-height: 1.6;
  padding: 0.5rem 0.1rem;
  box-shadow: none;
}

.page-faq .faq-search__input:focus {
  outline: none;
  border-bottom-color: var(--c-gold-bright);
}

.page-faq .faq-search__input::placeholder {
  color: var(--c-slate);
}

.page-faq .faq-search__hint {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.85rem;
  margin: 0.75rem 0 0;
  font-size: 0.82rem;
  color: var(--text-mute);
}

.page-faq .faq-search__hint a {
  color: var(--c-jade-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 189, 180, 0.35);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-search__hint a:hover {
  color: var(--c-gold-bright);
  border-color: var(--c-gold);
}

/* ---------- 高频资源带 ---------- */
.page-faq .resource-band {
  display: grid;
  gap: 1px;
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
  border: 1px solid var(--line-gold);
  background: var(--faq-hair);
}

.page-faq .resource-band__item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: clamp(1.15rem, 2.6vw, 1.7rem);
  background: linear-gradient(180deg, rgba(16, 27, 45, 0.96), rgba(11, 14, 19, 0.96));
  color: inherit;
  text-decoration: none;
  transition: background 0.25s ease;
}

.page-faq .resource-band__item:hover {
  background: linear-gradient(180deg, rgba(22, 36, 59, 0.98), rgba(11, 14, 19, 0.98));
}

.page-faq .resource-band__kicker {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--c-gold);
}

.page-faq .resource-band__title {
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  line-height: 1.4;
  color: var(--c-sand);
}

.page-faq .resource-band__desc {
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--text-mute);
}

.page-faq .resource-band__go {
  margin-top: auto;
  padding-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--c-jade-soft);
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-section {
  margin-top: clamp(3rem, 7vw, 5.25rem);
}

.page-faq .section-head {
  max-width: 62ch;
}

.page-faq .section-head__title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.2vw, 2.15rem);
  line-height: 1.25;
  color: var(--c-sand);
  margin: 0.35rem 0 0.7rem;
}

.page-faq .section-head__note {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--text-soft);
}

/* ---------- 正式版服务清单 ---------- */
.page-faq .service-grid {
  display: grid;
  gap: var(--gap-md);
  margin-top: var(--gap-lg);
}

.page-faq .service-figure {
  margin: 0;
  align-self: start;
}

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

.page-faq .service-group {
  border: 1px solid var(--line-gold-soft);
  background: var(--faq-card);
  margin-bottom: 0.6rem;
  transition: border-color 0.22s ease;
}

.page-faq .service-group:last-child {
  margin-bottom: 0;
}

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

.page-faq .service-group > summary {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.9rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--c-sand);
}

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

.page-faq .service-group > summary::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--c-gold);
}

.page-faq .service-group[open] > summary::after {
  content: "－";
}

.page-faq .service-group[open] > summary {
  border-bottom: 1px solid var(--line-gold-soft);
}

.page-faq .service-group__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--c-gold);
}

.page-faq .service-group__name {
  flex: 1 1 auto;
}

.page-faq .service-group__count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-jade-soft);
}

.page-faq .entry-list {
  list-style: none;
  margin: 0;
  padding: 0.45rem 1.1rem 0.9rem;
}

.page-faq .entry-list li {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.45rem;
  padding: 0.42rem 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-soft);
  border-bottom: 1px dashed rgba(196, 154, 88, 0.1);
}

.page-faq .entry-list li:last-child {
  border-bottom: 0;
}

.page-faq .entry-list span {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--c-gold);
}

/* ---------- 下载说明与版本对照 ---------- */
.page-faq .version-grid {
  display: grid;
  gap: var(--gap-md);
  margin-top: var(--gap-lg);
}

.page-faq .version-card {
  display: flex;
  flex-direction: column;
  padding: clamp(1.15rem, 2.8vw, 1.8rem);
  border: 1px solid var(--line-gold-soft);
  background: var(--faq-card);
  box-shadow: var(--shadow-panel);
}

.page-faq .version-card__title {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  line-height: 1.4;
  color: var(--c-sand);
  margin: 0.8rem 0 0.65rem;
}

.page-faq .version-card__lead {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-faq .plain-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-faq .plain-list li {
  display: flex;
  gap: 0.65rem;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-faq .plain-list li::before {
  content: "—";
  flex: 0 0 auto;
  color: var(--c-gold);
}

.page-faq .version-card__foot {
  margin: auto 0 0;
  padding-top: 1.25rem;
}

/* ---------- 检索区：目录 + 问答 ---------- */
.page-faq .lookup {
  display: grid;
  gap: var(--gap-lg);
  margin-top: var(--gap-lg);
}

.page-faq .lookup__aside {
  padding: 1.1rem 1rem;
  border: 1px solid var(--line-gold-soft);
  background: linear-gradient(180deg, rgba(16, 27, 45, 0.92), rgba(11, 14, 19, 0.92));
}

.page-faq .lookup__aside-title {
  margin: 0 0 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--c-slate);
}

.page-faq .toc {
  display: grid;
  gap: 0.15rem;
}

.page-faq .toc-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.55rem 0.6rem;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-soft);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.page-faq .toc-link:hover {
  color: var(--c-sand);
  background: rgba(196, 154, 88, 0.06);
}

.page-faq .toc-link.is-active {
  color: var(--c-gold-bright);
  border-left-color: var(--c-gold);
  background: rgba(196, 154, 88, 0.08);
}

.page-faq .toc-link b {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--c-slate);
}

.page-faq .toc-link.is-active b {
  color: var(--c-gold);
}

.page-faq .lookup__body {
  min-width: 0;
}

.page-faq .faq-cat {
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-faq .faq-cat:last-child {
  margin-bottom: 0;
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--line-gold);
}

.page-faq .faq-cat__head h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.12rem, 2.3vw, 1.4rem);
  line-height: 1.35;
  color: var(--c-sand);
}

.page-faq .faq-cat__head span {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--c-gold);
}

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

.page-faq .qa > summary {
  position: relative;
  padding: 0.95rem 2.4rem 0.95rem 0;
  cursor: pointer;
  list-style: none;
  font-size: 0.96rem;
  line-height: 1.65;
  color: var(--c-sand);
  transition: color 0.2s ease;
}

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

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

.page-faq .qa > summary::after {
  content: "＋";
  position: absolute;
  top: 0.95rem;
  right: 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--c-gold);
}

.page-faq .qa[open] > summary {
  color: var(--c-gold-bright);
}

.page-faq .qa[open] > summary::after {
  content: "－";
}

.page-faq .qa__body {
  padding: 0 0 1.1rem;
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--text-soft);
}

.page-faq .qa__body a {
  color: var(--c-jade-soft);
}

/* ---------- 联系支持 ---------- */
.page-faq .support-panel {
  display: grid;
  gap: var(--gap-md);
  margin-top: var(--gap-lg);
  padding: clamp(1.3rem, 3.2vw, 2.25rem);
  border: 1px solid var(--line-jade);
  background: linear-gradient(135deg, rgba(47, 122, 114, 0.16), rgba(16, 27, 45, 0.62));
}

.page-faq .support-panel__title {
  margin: 0 0 0.7rem;
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
  line-height: 1.4;
  color: var(--c-sand);
}

.page-faq .support-panel__text {
  margin: 0 0 1.25rem;
  max-width: 52ch;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-faq .support-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0;
}

.page-faq .support-panel__contact {
  margin: 0;
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--line-gold-soft);
  background: rgba(11, 14, 19, 0.6);
}

.page-faq .support-panel__contact dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--c-slate);
}

.page-faq .support-panel__contact dd {
  margin: 0.25rem 0 0.95rem;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--c-sand);
  word-break: break-word;
}

.page-faq .support-panel__contact dd:last-child {
  margin-bottom: 0;
  font-family: var(--font-sans);
  font-size: 0.86rem;
  color: var(--text-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 800px) {
  .page-faq .resource-band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 920px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  }
}

@media (min-width: 1000px) {
  .page-faq .service-grid {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1fr);
    align-items: start;
  }

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

  .page-faq .support-panel {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
  }
}

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

  .page-faq .lookup__aside {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }
}

@media (max-width: 640px) {
  .page-faq .entry-list li {
    grid-template-columns: 2.1rem minmax(0, 1fr);
  }

  .page-faq .support-panel__actions .btn {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .resource-band__item,
  .page-faq .toc-link,
  .page-faq .qa > summary,
  .page-faq .service-group {
    transition: none;
  }
}