.page-faq {
  --faq-rule: var(--line-ink);
  --faq-rule-soft: var(--line-ink-soft);
  --faq-soft: rgba(255, 179, 107, .16);
  background: var(--paper-100);
  color: var(--ink-900);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq .breadcrumb {
  padding-top: 14px;
  padding-bottom: 10px;
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--grey-green);
}

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

.page-faq .breadcrumb-link {
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-faq .breadcrumb-link:hover {
  color: var(--red-600);
  border-bottom-color: var(--red-600);
}

.page-faq .breadcrumb-current {
  color: var(--ink-900);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--green-900);
  color: var(--paper-100);
  padding: clamp(30px, 6vw, 64px) 0 clamp(26px, 4vw, 46px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 0 auto;
  width: 76%;
  background: linear-gradient(196deg, var(--green-800) 0%, var(--green-700) 54%, rgba(242, 138, 46, .24) 100%);
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(244, 235, 221, .12) 1px, transparent 1px);
  background-size: 14px 14px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .85), transparent 72%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .85), transparent 72%);
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(22px, 4vw, 44px);
}

.page-faq .faq-hero .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--gold-400);
}

.page-faq h1 {
  margin: 12px 0 0;
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: clamp(32px, 7.4vw, 66px);
  line-height: 1.05;
  letter-spacing: .01em;
  color: var(--paper-100);
  max-width: 16em;
}

.page-faq .faq-lead {
  margin: 16px 0 0;
  max-width: 44ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.85;
  color: rgba(244, 235, 221, .88);
}

.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-hero-stats {
  border: 1px solid var(--line-paper);
  background: rgba(14, 31, 26, .55);
  padding: 16px 16px 14px;
}

.page-faq .stat-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--gold-400);
}

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

.page-faq .stat-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 10px;
  background: rgba(22, 51, 42, .92);
}

.page-faq .stat-num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1;
  color: var(--cyan-400);
}

.page-faq .stat-cap {
  font-size: 12px;
  color: rgba(244, 235, 221, .74);
}

/* ---------- 粘性分组条 ---------- */
.page-faq .faq-toolbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--paper-200);
  border-top: 1px solid var(--faq-rule);
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-toolbar-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-block: 10px;
}

.page-faq .faq-toolbar-label {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--grey-green);
}

.page-faq .faq-tabs {
  display: flex;
  gap: 8px;
  flex: 1 1 auto;
  min-width: 0;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: thin;
}

.page-faq .faq-tab {
  flex: 0 0 auto;
  padding: 6px 11px;
  font-size: 13px;
  line-height: 1.2;
  color: var(--ink-900);
  background: var(--paper-100);
  border: 1px solid var(--faq-rule);
  text-decoration: none;
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}

.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  background: var(--apricot-500);
  border-color: var(--apricot-500);
  color: var(--green-900);
}

.page-faq .copy-live {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--green-700);
  min-height: 1em;
}

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  padding-block: clamp(34px, 6vw, 64px);
  border-top: 1px solid var(--faq-rule-soft);
  scroll-margin-top: 76px;
}

.page-faq .faq-section--last {
  border-top: 1px solid var(--faq-rule);
  background: var(--paper-200);
}

.page-faq .faq-head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(18px, 3vw, 28px);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-head .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--red-600);
}

.page-faq .faq-head .section-title {
  margin: 0;
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: clamp(24px, 4.4vw, 40px);
  line-height: 1.14;
  letter-spacing: .01em;
  color: var(--ink-900);
}

.page-faq .faq-head .lede {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-700);
}

/* ---------- 面板用法 ---------- */
.page-faq .faq-panel-grid {
  display: grid;
  gap: clamp(20px, 4vw, 36px);
  align-items: start;
}

.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: faqstep;
  display: grid;
  gap: 14px;
}

.page-faq .step-list li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 44px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-700);
}

.page-faq .step-list li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  width: 30px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 20px;
  text-align: center;
  color: var(--green-900);
  background: var(--gold-400);
}

.page-faq .step-list strong {
  display: block;
  color: var(--ink-900);
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 2px;
}

.page-faq .faq-note {
  margin: 20px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--apricot-500);
  background: var(--paper-200);
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-700);
  font-family: var(--font-mono);
}

/* ---------- 图片框 ---------- */
.page-faq .faq-figure {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--faq-rule);
  background: var(--paper-200);
}

.page-faq .faq-figure--wide {
  margin-bottom: clamp(18px, 3vw, 26px);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--faq-rule-soft);
  filter: saturate(.94) contrast(1.02);
}

.page-faq .media-caption {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.65;
  color: var(--grey-green);
}

/* ---------- 标签条 ---------- */
.page-faq .tag-strip {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .tag-strip li {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 6px 10px;
  border: 1px solid var(--faq-rule);
  background: var(--paper-200);
  transition: border-color var(--ease), background var(--ease);
}

.page-faq .tag-strip li:hover {
  border-color: var(--apricot-500);
  background: var(--faq-soft);
}

.page-faq .grp-tag {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-900);
}

.page-faq .grp-count {
  font-size: 11.5px;
  color: var(--grey-green);
}

/* ---------- 时刻条 ---------- */
.page-faq .clock-strip {
  display: grid;
  gap: 1px;
  background: var(--line-ink);
  border: 1px solid var(--faq-rule);
  margin-bottom: clamp(18px, 3vw, 26px);
}

.page-faq .clock-cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px;
  background: var(--green-800);
}

.page-faq .clock-num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1;
  color: var(--cyan-400);
}

.page-faq .clock-cell:nth-child(2) .clock-num {
  color: var(--apricot-300);
}

.page-faq .clock-cap {
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(244, 235, 221, .82);
}

/* ---------- 版本轨道 ---------- */
.page-faq .version-track {
  list-style: none;
  margin: 0 0 clamp(18px, 3vw, 26px);
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .version-track li {
  flex: 1 1 120px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--faq-rule);
  background: var(--paper-200);
}

.page-faq .version-track li.is-current {
  background: var(--green-900);
  border-color: var(--green-900);
}

.page-faq .vt-num {
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--apricot-500);
}

.page-faq .version-track li.is-current .vt-num {
  color: var(--cyan-400);
}

.page-faq .vt-cap {
  font-size: 12.5px;
  color: var(--grey-green);
}

.page-faq .version-track li.is-current .vt-cap {
  color: rgba(244, 235, 221, .8);
}

/* ---------- 清单 ---------- */
.page-faq .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .check-list > li {
  border-bottom: 1px solid var(--faq-rule-soft);
}

.page-faq .check {
  border-left: 3px solid transparent;
  padding-left: 10px;
  transition: border-color var(--ease), background var(--ease);
}

.page-faq .check[open] {
  border-left-color: var(--apricot-300);
  background: linear-gradient(90deg, var(--faq-soft), transparent 62%);
}

.page-faq .check-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 4px 12px;
  align-items: center;
  padding: 14px 4px 14px 0;
  cursor: pointer;
  list-style: none;
}

.page-faq .check-head::-webkit-details-marker {
  display: none;
}

.page-faq .check-head:focus-visible {
  outline: 2px solid var(--apricot-500);
  outline-offset: 2px;
}

.page-faq .check-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--grey-green);
  transition: color var(--ease);
}

.page-faq .check[open] .check-num {
  color: var(--apricot-500);
}

.page-faq .check-title {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink-900);
}

.page-faq .check-icon {
  color: var(--grey-green);
  transition: transform var(--ease), color var(--ease);
}

.page-faq .check[open] .check-icon {
  transform: rotate(180deg);
  color: var(--apricot-500);
}

.page-faq .check-body {
  padding: 2px 4px 16px 0;
}

.page-faq .check-body p {
  margin: 0 0 10px;
  max-width: 52ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-700);
}

.page-faq .copy-btn {
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

.page-faq .copy-btn[data-copied="true"] {
  background: var(--cyan-400);
  border-color: var(--cyan-400);
  color: var(--green-900);
}

.page-faq .faq-inline-link {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-700);
}

.page-faq .faq-inline-link a,
.page-faq .faq-link {
  color: var(--red-600);
  text-decoration: none;
  border-bottom: 1px solid var(--red-600);
  transition: color var(--ease), border-color var(--ease);
}

.page-faq .faq-inline-link a:hover,
.page-faq .faq-link:hover {
  color: var(--apricot-500);
  border-bottom-color: var(--apricot-500);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
  padding: clamp(18px, 3.4vw, 30px);
  background: var(--green-900);
  border: 1px solid var(--green-700);
  color: var(--paper-100);
}

.page-faq .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-paper);
}

.page-faq .contact-item {
  display: grid;
  gap: 4px;
  justify-items: start;
  padding: 12px 14px;
  background: var(--green-800);
}

.page-faq .contact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--gold-400);
}

.page-faq .contact-value {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--paper-100);
  word-break: break-word;
}

.page-faq .copy-btn--onDark {
  background: transparent;
  border: 1px solid var(--line-paper);
  color: var(--paper-100);
  margin-top: 4px;
}

.page-faq .copy-btn--onDark:hover {
  background: var(--apricot-500);
  border-color: var(--apricot-500);
  color: var(--green-900);
}

.page-faq .faq-contact-side p {
  margin: 0 0 12px;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(244, 235, 221, .84);
  max-width: 46ch;
}

.page-faq .faq-contact-side p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-contact-side .faq-link {
  color: var(--apricot-300);
  border-bottom-color: var(--apricot-300);
}

.page-faq .faq-contact-side .faq-link:hover {
  color: var(--cyan-400);
  border-bottom-color: var(--cyan-400);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .clock-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 820px) {
  .page-faq .check-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 40px);
    align-items: start;
  }

  .page-faq .check-list > li {
    min-width: 0;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-faq .faq-panel-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

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

@media (max-width: 480px) {
  .page-faq .faq-hero::before {
    width: 100%;
    clip-path: polygon(38% 0, 100% 0, 100% 100%, 0 100%);
    opacity: .9;
  }

  .page-faq .check-head {
    grid-template-columns: auto minmax(0, 1fr) 14px;
    gap: 4px 8px;
  }

  .page-faq .check-title {
    font-size: 14.5px;
  }

  .page-faq .faq-toolbar-label {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .check-icon,
  .page-faq .check,
  .page-faq .faq-tab,
  .page-faq .tag-strip li {
    transition: none;
  }
}