.page-faq {
  --faq-paper-78: rgba(247, 241, 227, .78);
  --faq-paper-60: rgba(247, 241, 227, .6);
  --faq-gap: 52px;
  background: var(--paper);
  color: var(--ink);
}

.page-faq .crumbs {
  padding-top: 16px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  margin-top: 10px;
  background-color: var(--ink);
  color: var(--paper);
  border-top: 3px solid var(--ink);
  border-bottom: 3px solid var(--gold);
  background-image:
    repeating-linear-gradient(to right, rgba(247, 241, 227, .07) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(to bottom, rgba(247, 241, 227, .07) 0 1px, transparent 1px 48px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 28px;
  padding: 34px 0 40px;
}

.page-faq .faq-hero__kicker {
  display: inline-block;
  margin: 0;
  padding: 7px 12px;
  border: 2px solid var(--gold);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .22em;
}

.page-faq .faq-hero__title {
  margin: 20px 0 0;
  max-width: 20ch;
  font-family: var(--font-serif);
  font-size: clamp(32px, 6.2vw, 64px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--paper);
  text-wrap: balance;
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 44ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--faq-paper-78);
}

.page-faq .faq-hero__points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__points li {
  padding: 6px 11px;
  border: 2px solid var(--faq-paper-60);
  color: var(--paper);
  font-size: 12.5px;
  font-weight: 700;
}

.page-faq .faq-hero__figure {
  margin: 0;
  padding: 8px;
  background: var(--paper);
  border: 2px solid var(--gold);
  box-shadow: 6px 6px 0 rgba(212, 160, 23, .55);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
  object-position: center top;
  border: 1px solid var(--ink);
}

.page-faq .faq-hero__figure figcaption {
  margin-top: 8px;
  color: var(--ink-70);
  font-size: 12.5px;
  line-height: 1.5;
}

@media (min-width: 880px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 268px;
    gap: 52px;
    align-items: center;
    padding: 62px 0 70px;
  }
}

/* ---------- 双栏骨架 ---------- */

.page-faq .faq-layout {
  display: grid;
  gap: 30px;
  padding: 30px 0 64px;
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
    padding: 54px 0 88px;
  }
}

.page-faq .faq-aside {
  min-width: 0;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-main {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: var(--faq-gap);
}

.page-faq .faq-section {
  min-width: 0;
  scroll-margin-top: 24px;
}

/* ---------- 目录 ---------- */

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

.page-faq .rail__head {
  display: none;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--ink);
}

.page-faq .rail__title {
  margin: 0;
  color: var(--gold-deep);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .18em;
}

.page-faq .rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  min-height: 44px;
  padding: 11px 13px;
  background: var(--paper-2);
  border: 2px solid var(--line);
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .14s ease, background .14s ease, color .14s ease, box-shadow .14s ease, transform .14s ease;
}

.page-faq .rail__link:hover,
.page-faq .rail__link:focus-visible {
  border-color: var(--green-deep);
  background: var(--paper);
  box-shadow: var(--shadow-sm);
  transform: translate(-2px, -2px);
}

.page-faq .rail__link[data-active] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.page-faq .rail__link[data-active] .rail__index {
  color: var(--gold);
}

.page-faq .rail__index {
  color: var(--green-deep);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 900;
}

@media (min-width: 1024px) {
  .page-faq .faq-aside {
    position: sticky;
    top: 20px;
    padding-bottom: 0;
    border-bottom: 0;
  }
  .page-faq .rail__head {
    display: block;
  }
  .page-faq .rail__list {
    flex-direction: column;
    gap: 4px;
    padding-bottom: 0;
    overflow: visible;
  }
  .page-faq .rail__link {
    display: flex;
    white-space: normal;
  }
}

/* ---------- 章节头 ---------- */

.page-faq .section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "idx title"
    "idx tag";
  align-items: center;
  gap: 2px 14px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink);
}

.page-faq .section-head__index {
  grid-area: idx;
  color: var(--gold-deep);
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 900;
  line-height: .85;
}

.page-faq .section-head__title {
  grid-area: title;
  margin: 0;
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 900;
  line-height: 1.22;
}

.page-faq .section-head__tag {
  grid-area: tag;
  justify-self: start;
  margin-top: 4px;
}

@media (min-width: 720px) {
  .page-faq .section-head__index { font-size: 50px; }
  .page-faq .section-head__title { font-size: 29px; }
}

.page-faq .faq-intro {
  margin: 0 0 22px;
  color: var(--ink-70);
  font-size: 15.5px;
  line-height: 1.82;
}

.page-faq .faq-note {
  margin: 20px 0 0;
  padding: 12px 14px;
  background: var(--paper-2);
  border-left: 4px solid var(--green);
  font-size: 14.5px;
  line-height: 1.72;
}

.page-faq .faq-note a {
  color: var(--green-deep);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 三步卡 ---------- */

.page-faq .steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 760px) {
  .page-faq .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.page-faq .step {
  padding: 18px 16px 20px;
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-sm);
  transition: transform .14s ease, box-shadow .14s ease;
}

.page-faq .step:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow);
}

.page-faq .step__num {
  display: inline-block;
  margin-bottom: 10px;
  padding: 2px 9px;
  background: var(--gold);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 900;
  line-height: 1.1;
}

.page-faq .step__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.36;
}

.page-faq .step__text {
  margin: 0;
  color: var(--ink-70);
  font-size: 14px;
  line-height: 1.78;
}

/* ---------- 目录路径 ---------- */

.page-faq .path {
  display: grid;
  gap: 10px;
  margin: 0 0 24px;
}

@media (min-width: 800px) {
  .page-faq .path {
    grid-template-columns: 1fr auto 1fr auto 1.15fr;
    gap: 8px;
    align-items: stretch;
  }
}

.page-faq .path__node {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 14px 16px;
  background: var(--paper-2);
  border: 2px solid var(--green-deep);
  font-size: 13.5px;
  line-height: 1.62;
}

.page-faq .path__node strong {
  color: var(--ink);
  font-size: 15px;
}

.page-faq .path__node span:last-child {
  color: var(--ink-70);
}

.page-faq .path__step {
  color: var(--gold-deep);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
}

.page-faq .path__node--result {
  background: var(--ink);
  border-color: var(--ink);
}

.page-faq .path__node--result strong { color: var(--gold); }
.page-faq .path__node--result span:last-child { color: var(--faq-paper-78); }
.page-faq .path__node--result .path__step { color: var(--gold); }

.page-faq .path__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green-deep);
  transform: rotate(90deg);
}

@media (min-width: 800px) {
  .page-faq .path__arrow { transform: none; }
}

/* ---------- 配图 ---------- */

.page-faq .faq-figure {
  margin: 0 0 24px;
  padding: 8px;
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
}

.page-faq .faq-figure figcaption {
  margin-top: 8px;
  color: var(--ink-70);
  font-size: 12.5px;
  line-height: 1.5;
}

/* ---------- 资料说明 ---------- */

.page-faq .path-notes {
  display: grid;
  gap: 12px;
  margin: 0;
}

@media (min-width: 780px) {
  .page-faq .path-notes { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.page-faq .path-note {
  padding: 14px 16px 16px;
  background: var(--paper-2);
  border-top: 4px solid var(--green);
}

.page-faq .path-note dt {
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 800;
}

.page-faq .path-note dd {
  margin: 0;
  color: var(--ink-70);
  font-size: 13.5px;
  line-height: 1.72;
}

/* ---------- 地市 ---------- */

.page-faq .city-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-faq .city-tag {
  padding: 8px 13px;
  background: var(--paper);
  border: 2px solid var(--green-deep);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.page-faq .city-tag:nth-child(3n+1) { background: var(--paper-2); }
.page-faq .city-tag:nth-child(4n) {
  background: #f2e5c6;
  border-color: var(--gold-deep);
}

.page-faq .city-demo {
  padding: 18px 18px 20px;
  background: var(--paper-2);
  border: 2px dashed var(--green-deep);
}

.page-faq .city-demo__title {
  margin: 0 0 10px;
  color: var(--gold-deep);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .18em;
}

.page-faq .city-demo__text {
  margin: 0 0 10px;
  color: var(--ink-70);
  font-size: 14.5px;
  line-height: 1.8;
}

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

/* ---------- 榜单说明 ---------- */

.page-faq .rank-explain {
  display: grid;
  gap: 14px;
}

@media (min-width: 780px) {
  .page-faq .rank-explain { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.page-faq .rank-explain__item {
  padding: 16px 16px 18px;
  background: var(--paper);
  border: 2px solid var(--line);
  border-top-width: 6px;
}

.page-faq .rank-explain__item--hot { border-top-color: var(--gold); }
.page-faq .rank-explain__item--new { border-top-color: var(--green); }
.page-faq .rank-explain__item--note { border-top-color: var(--red); }

.page-faq .rank-explain__label {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 900;
}

.page-faq .rank-explain__text {
  margin: 0 0 10px;
  color: var(--ink-70);
  font-size: 14px;
  line-height: 1.76;
}

.page-faq .rank-explain__meta {
  margin: 0;
  padding-top: 8px;
  border-top: 1px solid var(--line-soft);
  color: var(--gold-deep);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
}

/* ---------- 场景切换 ---------- */

.page-faq .faq-switch {
  margin: 0 0 6px;
  padding: 14px 15px 16px;
  background: var(--paper-2);
  border: 2px dashed var(--ink);
}

.page-faq .faq-switch__label {
  margin: 0 0 10px;
  color: var(--gold-deep);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .2em;
}

.page-faq .faq-switch__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-switch__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 12px;
  background: var(--paper);
  border: 2px solid var(--ink);
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 700;
  text-decoration: none;
  transition: background .14s ease, color .14s ease, box-shadow .14s ease, transform .14s ease;
}

.page-faq .faq-switch__link:hover,
.page-faq .faq-switch__link:focus-visible {
  background: var(--ink);
  color: var(--gold);
  box-shadow: var(--shadow-sm);
  transform: translate(-2px, -2px);
}

/* ---------- 折叠问答 ---------- */

.page-faq .qa-group {
  margin-top: 30px;
  scroll-margin-top: 24px;
}

.page-faq .qa-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .01em;
}

.page-faq .qa-group__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  background: var(--ink);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 900;
}

.page-faq .qa {
  background: var(--paper);
  border: 2px solid var(--line);
  transition: background .14s ease, border-color .14s ease;
}

.page-faq .qa + .qa { border-top: 0; }

.page-faq .qa[open] {
  background: var(--paper-2);
  border-color: var(--green-deep);
}

.page-faq .qa__q {
  position: relative;
  display: block;
  padding: 14px 44px 14px 15px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.52;
  cursor: pointer;
  list-style: none;
}

.page-faq .qa__q::-webkit-details-marker { display: none; }
.page-faq .qa__q::marker { content: ""; }

.page-faq .qa__q::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 15px;
  transform: translateY(-50%);
  color: var(--green-deep);
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 900;
  line-height: 1;
}

.page-faq .qa[open] .qa__q::after { content: "−"; }

.page-faq .qa__q:hover { background: rgba(62, 124, 89, .08); }

.page-faq .qa__a {
  padding: 0 15px 16px;
  color: var(--ink-70);
  font-size: 14.5px;
  line-height: 1.82;
}

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

.page-faq .qa__a a {
  color: var(--green-deep);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 结尾 ---------- */

.page-faq .faq-end {
  padding: 24px 20px 28px;
  background: var(--ink);
  color: var(--paper);
  border-left: 8px solid var(--gold);
}

.page-faq .faq-end .section-head { border-bottom-color: var(--faq-paper-60); }
.page-faq .faq-end .section-head__index { color: var(--gold); }
.page-faq .faq-end .section-head__title { color: var(--paper); }

.page-faq .faq-end__text {
  margin: 0 0 12px;
  color: var(--faq-paper-78);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-end__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-faq .faq-end .btn--gold {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.page-faq .faq-end .btn--ghost {
  background: transparent;
  border-color: var(--faq-paper-60);
  color: var(--paper);
}

.page-faq .faq-end .btn--ghost:hover,
.page-faq .faq-end .btn--ghost:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
}

/* ---------- 浮动目录 ---------- */

.page-faq .faq-fab {
  position: fixed;
  right: 14px;
  bottom: calc(var(--bar-h) + 14px);
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 46px;
  padding: 10px 14px;
  background: var(--ink);
  border: 2px solid var(--gold);
  box-shadow: var(--shadow-sm);
  color: var(--gold);
  font-size: 13.5px;
  font-weight: 800;
  text-decoration: none;
  transition: transform .14s ease, box-shadow .14s ease;
}

.page-faq .faq-fab:hover,
.page-faq .faq-fab:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow);
}

.page-faq .faq-fab__glyph {
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
}

@media (min-width: 1024px) {
  .page-faq .faq-fab { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .rail__link,
  .page-faq .step,
  .page-faq .faq-switch__link,
  .page-faq .faq-fab,
  .page-faq .qa {
    transition: none;
  }
  .page-faq .rail__link:hover,
  .page-faq .step:hover,
  .page-faq .faq-switch__link:hover,
  .page-faq .faq-fab:hover {
    transform: none;
  }
}