.page-faq {
  --faq-line-dark: rgba(244, 237, 225, .16);
  --faq-line-paper: rgba(29, 23, 18, .16);
  --faq-soft-dark: #93A6C4;
  --faq-soft-paper: #715F4B;
  background: var(--ink-900);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 52px) 0 clamp(34px, 6vw, 76px);
  background:
    radial-gradient(circle at 84% 12%, rgba(127, 212, 216, .18), transparent 46%),
    radial-gradient(circle at 6% 34%, rgba(217, 55, 43, .2), transparent 44%),
    linear-gradient(180deg, #071223 0%, var(--ink-900) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1.5px 1.5px at 14% 22%, rgba(244, 237, 225, .75), transparent 60%),
    radial-gradient(1.2px 1.2px at 32% 74%, rgba(244, 237, 225, .5), transparent 60%),
    radial-gradient(1.6px 1.6px at 58% 16%, rgba(127, 212, 216, .7), transparent 60%),
    radial-gradient(1.3px 1.3px at 76% 62%, rgba(244, 237, 225, .55), transparent 60%),
    radial-gradient(1.4px 1.4px at 92% 34%, rgba(216, 169, 75, .65), transparent 60%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(22px, 4vw, 38px);
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-hero .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(147, 166, 196, .55);
}

.page-faq .faq-hero .breadcrumb-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(127, 212, 216, .4);
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--gold);
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  margin: 0 0 30px;
  max-width: 60ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(244, 237, 225, .84);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-fact__num {
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 24px;
  color: var(--mint);
}

.page-faq .faq-hero__media {
  position: relative;
  z-index: 1;
  margin-top: clamp(30px, 5vw, 58px);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 3;
  object-fit: cover;
  clip-path: var(--cut-frame);
}

/* ---------- 分类索引条 ---------- */
.page-faq .faq-index {
  padding: 22px 0 20px;
  background: var(--ink-800);
  border-top: 1px solid var(--faq-line-dark);
  border-bottom: 1px solid var(--faq-line-dark);
}

.page-faq .faq-index__hint {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mist);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid rgba(244, 237, 225, .2);
  border-radius: var(--radius-pill);
  background: rgba(10, 24, 48, .62);
  color: var(--paper);
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
  transition: transform .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}

.page-faq .faq-index__link:hover {
  transform: translateY(-2px);
  border-color: var(--dot, var(--orange));
  background: rgba(244, 237, 225, .07);
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-faq .faq-index__dot {
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 50%;
  background: var(--dot, var(--orange));
}

.page-faq .faq-index__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
}

.page-faq .is-entry { --dot: var(--orange); }
.page-faq .is-refresh { --dot: var(--red); }
.page-faq .is-rank { --dot: var(--gold); }
.page-faq .is-adapt { --dot: var(--cyan); }
.page-faq .is-privacy { --dot: var(--mint); }

/* ---------- 问答分区 ---------- */
.page-faq .faq-block {
  padding: clamp(48px, 7vw, 104px) 0;
  background: var(--ink-900);
  --qa-text: var(--paper);
  --qa-soft: var(--faq-soft-dark);
  --qa-line: var(--faq-line-dark);
  --qa-strong: var(--orange);
  --step-bg: var(--orange);
  --step-fg: var(--ink-900);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-block--panel {
  background: var(--ink-800);
}

.page-faq .faq-block--paper {
  background: var(--paper);
  color: var(--brown);
  --qa-text: var(--brown);
  --qa-soft: var(--faq-soft-paper);
  --qa-line: var(--faq-line-paper);
  --qa-strong: var(--red);
  --step-bg: var(--red);
  --step-fg: var(--paper);
}

.page-faq .faq-head {
  max-width: 760px;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-faq .faq-head__num {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-faq .faq-block--paper .faq-head__num {
  color: #B0813A;
}

.page-faq .faq-head h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: inherit;
}

.page-faq .faq-head__lead {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--qa-soft);
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-list {
  border-top: 1px solid var(--qa-line);
}

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

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  list-style: none;
  cursor: pointer;
  color: var(--qa-text);
  font-size: clamp(16px, 1.7vw, 18px);
  font-weight: 600;
  line-height: 1.6;
  transition: color .25s var(--ease);
}

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

.page-faq .qa summary:hover {
  color: var(--qa-strong);
}

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 4px;
  border-radius: 4px;
}

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

.page-faq .qa__sign {
  flex: none;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  transition: transform .3s var(--ease);
}

.page-faq .qa[open] .qa__sign {
  transform: rotate(45deg);
}

.page-faq .qa__body {
  max-width: 70ch;
  padding: 0 0 26px;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--qa-soft);
}

.page-faq .qa__body p {
  margin: 0 0 12px;
}

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

.page-faq .qa__body a {
  color: var(--orange);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-block--paper .qa__body a {
  color: var(--red);
}

.page-faq .qa__body a:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* ---------- 步骤 ---------- */
.page-faq .qa-steps {
  counter-reset: faqstep;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .qa-steps li {
  position: relative;
  padding: 0 0 20px 42px;
}

.page-faq .qa-steps li:last-child {
  padding-bottom: 0;
}

.page-faq .qa-steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--step-bg);
  color: var(--step-fg);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
}

.page-faq .qa-steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 12px;
  top: 34px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--step-bg), transparent);
  opacity: .45;
}

/* ---------- 对照图与映射表 ---------- */
.page-faq .faq-figure {
  margin: clamp(28px, 4vw, 46px) 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--qa-soft);
}

.page-faq .faq-sub {
  margin: clamp(28px, 4vw, 44px) 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--qa-text);
}

.page-faq .faq-map {
  border-top: 1px solid var(--qa-line);
}

.page-faq .faq-map__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--qa-line);
}

.page-faq .faq-map__tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--qa-strong);
}

.page-faq .faq-map__old {
  font-size: 15px;
  color: var(--qa-soft);
}

.page-faq .faq-map__arrow {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--qa-strong);
}

.page-faq .faq-map__new {
  font-size: 15px;
  font-weight: 600;
  color: var(--qa-text);
}

/* ---------- 适配分组条 ---------- */
.page-faq .faq-groups {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 clamp(22px, 3vw, 34px);
  padding: 0;
  list-style: none;
}

.page-faq .faq-groups__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--faq-line-dark);
  border-radius: var(--radius-pill);
  background: rgba(10, 24, 48, .5);
  font-size: 13px;
  color: var(--paper);
}

.page-faq .faq-groups__dot {
  width: 7px;
  height: 7px;
  flex: none;
  border-radius: 50%;
  background: var(--cyan);
}

.page-faq .faq-groups__item:nth-child(2) .faq-groups__dot { background: var(--orange); }
.page-faq .faq-groups__item:nth-child(3) .faq-groups__dot { background: var(--gold); }
.page-faq .faq-groups__item:nth-child(4) .faq-groups__dot { background: var(--mint); }

/* ---------- 人工支持 ---------- */
.page-faq .faq-support {
  padding: clamp(52px, 7vw, 108px) 0;
  background:
    radial-gradient(circle at 80% 18%, rgba(255, 122, 26, .2), transparent 48%),
    radial-gradient(circle at 8% 86%, rgba(217, 55, 43, .18), transparent 46%),
    var(--ink-900);
  color: var(--paper);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-support__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
}

.page-faq .faq-support__intro h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.26;
  color: var(--paper);
}

.page-faq .faq-support__lede {
  margin: 0 0 26px;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: rgba(244, 237, 225, .84);
}

.page-faq .faq-support__flow {
  margin: 0 0 30px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-support__flow li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  border-top: 1px solid var(--faq-line-dark);
  font-size: 15px;
  color: rgba(244, 237, 225, .9);
}

.page-faq .faq-support__flow li:last-child {
  border-bottom: 1px solid var(--faq-line-dark);
}

.page-faq .faq-support__flow-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--mint);
}

.page-faq .faq-support__panel {
  padding: clamp(22px, 3vw, 34px);
  background: var(--ink-800);
  border: 1px solid rgba(244, 237, 225, .14);
  clip-path: var(--cut-panel);
}

.page-faq .faq-support__panel h3 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  color: var(--paper);
}

.page-faq .faq-support__list {
  display: grid;
  gap: 16px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-support__list li {
  display: grid;
  gap: 4px;
}

.page-faq .faq-support__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .faq-support__value {
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-support__note {
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid var(--faq-line-dark);
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-map__row {
    grid-template-columns: 60px minmax(0, 1fr) 34px minmax(0, 1.35fr);
    align-items: baseline;
    gap: 0 12px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-index__list {
    flex-wrap: wrap;
    overflow-x: visible;
  }

  .page-faq .faq-support__grid {
    grid-template-columns: 1.05fr .95fr;
    align-items: start;
  }

  .page-faq .faq-hero__title {
    max-width: 18ch;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-head {
    max-width: 820px;
  }
}