.page-faq {
  --faq-pad: clamp(20px, 5vw, 64px);
  background: var(--ink);
  color: var(--cream);
}

.page-faq .section {
  padding: clamp(44px, 8vw, 92px) 0;
}

.page-faq .prose {
  margin: 0 0 16px;
  line-height: 1.85;
}

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

.page-faq a:hover {
  color: var(--gold);
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(24px, 6vw, 56px);
  border-bottom: 1px solid var(--line-soft);
  background-color: var(--ink);
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: 72px 72px;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 82% 14%, rgba(201, 162, 39, 0.16), transparent 42%),
    radial-gradient(circle at 12% 88%, rgba(47, 143, 131, 0.14), transparent 46%),
    linear-gradient(180deg, rgba(14, 15, 12, 0.1) 0%, rgba(14, 15, 12, 0.92) 88%);
}

.page-faq .faq-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--stone);
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-faq .breadcrumb a {
  color: var(--stone);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  color: var(--gold);
}

.page-faq .breadcrumb__sep {
  margin: 0 8px;
  color: var(--line);
}

.page-faq .faq-hero__lead h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 7.4vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 14px 0 0;
  max-width: 14em;
}

.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold);
  margin: 0;
}

.page-faq .faq-hero__coord {
  margin: 20px 0 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--stone);
}

.page-faq .faq-hero__body {
  padding-top: 4px;
}

.page-faq .faq-hero__body .prose:first-child {
  font-size: 17px;
  color: var(--cream);
}

.page-faq .faq-hero__body .prose {
  color: rgba(242, 237, 228, 0.78);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(28px, 5vw, 48px);
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-index a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--stone);
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 7px 12px;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a[data-active="true"] {
  color: var(--gold);
  border-color: var(--gold);
}

/* ---------- 通用分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
}

.page-faq .faq-sec-head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-faq .faq-sec-head h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 4.2vw, 38px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  margin: 12px 0 16px;
}

.page-faq .faq-sec-head .prose {
  color: rgba(242, 237, 228, 0.76);
}

/* ---------- 图片 ---------- */
.page-faq .diagram {
  margin: 0 0 clamp(26px, 4vw, 48px);
  border: 1px solid var(--line);
  background: var(--walnut);
}

.page-faq .diagram--tight {
  margin: clamp(20px, 3vw, 32px) 0 0;
}

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

.page-faq .media__caption {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.06em;
  color: var(--stone);
  padding: 12px 16px;
  border-top: 1px solid var(--line-soft);
}

/* ---------- 四步时间轴 ---------- */
.page-faq .steps {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .steps::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 13px;
  width: 1px;
  background: var(--line);
}

.page-faq .step {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: clamp(20px, 3vw, 30px) 0;
  border-top: 1px solid var(--line-soft);
}

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

.page-faq .step__rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding-top: 6px;
}

.page-faq .step__node {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px var(--ink), 0 0 0 5px var(--line);
  flex: none;
  margin-top: 6px;
}

.page-faq .step__coord {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-faq .step__title {
  font-family: var(--font-display);
  font-size: clamp(19px, 3vw, 24px);
  letter-spacing: -0.01em;
  margin: 0 0 10px;
}

.page-faq .step__body p {
  margin: 0 0 14px;
  line-height: 1.85;
  color: rgba(242, 237, 228, 0.82);
}

.page-faq .fold {
  border-left: 2px dashed var(--line);
  padding-left: 14px;
  margin-top: 4px;
}

.page-faq .fold__head {
  display: inline-block;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--clay);
  text-align: left;
}

.page-faq .fold__head:hover {
  color: var(--gold);
}

.page-faq .fold__body {
  padding: 10px 0 2px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 237, 228, 0.72);
}

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

/* ---------- 通道专题 ---------- */
.page-faq .issue-list {
  border-top: 1px solid var(--line-cream);
}

.page-faq .issue {
  padding: clamp(18px, 3vw, 26px) 0;
  border-bottom: 1px solid var(--line-cream);
}

.page-faq .issue__title {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.6vw, 22px);
  margin: 0 0 12px;
}

.page-faq .issue__row {
  display: flex;
  gap: 12px;
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(242, 237, 228, 0.78);
}

.page-faq .issue__label {
  flex: none;
  width: 3.4em;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold);
  padding-top: 3px;
}

.page-faq .issue-foot {
  margin: 22px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 237, 228, 0.68);
}

/* ---------- 账号卡片 ---------- */
.page-faq .cards {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-faq .faq-card {
  background: var(--ink);
  padding: clamp(20px, 3vw, 30px);
}

.page-faq .faq-card .card__meta {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--stone);
  margin: 0 0 12px;
}

.page-faq .faq-card .card__title {
  font-family: var(--font-display);
  font-size: 19px;
  margin: 0 0 10px;
}

.page-faq .faq-card p:last-child {
  margin: 0;
  line-height: 1.8;
  color: rgba(242, 237, 228, 0.78);
  font-size: 15px;
}

.page-faq .faq-tail {
  margin: clamp(22px, 4vw, 34px) 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 237, 228, 0.7);
}

/* ---------- 对局与棋谱 ---------- */
.page-faq .game-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-faq .game-list li {
  position: relative;
  padding: 14px 0 14px 22px;
  border-top: 1px solid var(--line-soft);
  line-height: 1.8;
  color: rgba(242, 237, 228, 0.8);
  font-size: 15px;
}

.page-faq .game-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 23px;
  width: 6px;
  height: 6px;
  background: var(--clay);
}

.page-faq .game-list strong {
  color: var(--cream);
  font-weight: 600;
}

.page-faq .game-aside {
  border: 1px solid var(--line-cream);
  border-left: 3px solid var(--jade);
  padding: clamp(20px, 3vw, 30px);
  background: rgba(47, 143, 131, 0.08);
}

.page-faq .game-aside__coord {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--jade-lt);
  margin: 0 0 14px;
}

.page-faq .game-aside p {
  margin: 0 0 14px;
  line-height: 1.85;
  font-size: 15px;
  color: rgba(242, 237, 228, 0.82);
}

.page-faq .game-aside__note {
  margin-bottom: 0;
  color: rgba(242, 237, 228, 0.66);
}

/* ---------- 分类索引 ---------- */
.page-faq .tagwall {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cream);
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 8px 13px;
  transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
}

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

.page-faq .cat-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(26px, 4vw, 44px);
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-faq .cat {
  background: var(--ink);
  padding: clamp(18px, 3vw, 26px);
}

.page-faq .cat__no {
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--cinnabar);
  margin: 0 0 10px;
}

.page-faq .cat__title {
  font-family: var(--font-display);
  font-size: 17px;
  margin: 0 0 8px;
}

.page-faq .cat p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(242, 237, 228, 0.72);
}

/* ---------- 结尾 ---------- */
.page-faq .faq-end {
  border-top: 1px solid var(--line-soft);
  background:
    linear-gradient(180deg, rgba(58, 42, 32, 0.9) 0%, rgba(14, 15, 12, 1) 100%);
}

.page-faq .faq-end__inner {
  max-width: 74ch;
  border-left: 3px solid var(--cinnabar);
  padding-left: clamp(16px, 3vw, 30px);
}

.page-faq .faq-end__inner h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.16;
  margin: 12px 0 18px;
}

.page-faq .faq-end__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-end .mono {
  color: var(--gold);
}

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

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

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

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

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }

  .page-faq .faq-hero__body {
    padding-top: clamp(38px, 5vw, 62px);
  }

  .page-faq .step {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: clamp(20px, 3vw, 40px);
    padding: clamp(26px, 3vw, 38px) 0;
  }

  .page-faq .steps::before {
    left: 21px;
  }

  .page-faq .step__rail {
    align-items: flex-start;
    padding-left: 14px;
  }

  .page-faq .step__node {
    margin-left: -14px;
  }

  .page-faq .step__coord {
    writing-mode: vertical-rl;
    letter-spacing: 0.3em;
    padding-top: 6px;
  }

  .page-faq .cat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .cards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .tag,
  .page-faq .faq-index a {
    transition: none;
  }
}