.page-faq {
  --faq-gap: clamp(1.25rem, 3vw, 2rem);
  --faq-pad: clamp(1rem, 4vw, 2.75rem);
  background:
    radial-gradient(1100px 560px at 88% -6%, rgba(61, 224, 208, 0.12), transparent 62%),
    radial-gradient(860px 520px at 2% 10%, rgba(201, 164, 92, 0.13), transparent 64%),
    var(--ink);
  color: var(--paper);
  padding-bottom: clamp(3rem, 8vw, 6rem);
  overflow-x: hidden;
}

.page-faq a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 224, 208, 0.45);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq a:hover,
.page-faq a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--gold);
}

.page-faq .breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--moss);
  margin-bottom: 1.4rem;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--gold-deep);
}

.page-faq .breadcrumb a {
  color: var(--moss);
  border-bottom: 0;
}

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

/* 首屏 */
.page-faq .faq-hero {
  border-bottom: var(--frame) solid var(--line);
  background:
    linear-gradient(150deg, rgba(18, 59, 51, 0.95) 0%, rgba(11, 43, 38, 0.98) 58%, rgba(7, 30, 26, 0.99) 100%);
  padding: clamp(2rem, 6vw, 3.75rem) 0 clamp(1.75rem, 5vw, 3rem);
  position: relative;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--gold) 48%, var(--orange));
}

.page-faq .faq-hero .kicker {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.22em;
  color: var(--gold);
  margin: 0 0 0.9rem;
  text-transform: uppercase;
}

.page-faq h1 {
  font-family: var(--font-head);
  font-size: clamp(1.75rem, 5.2vw, 3.1rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: 0.01em;
  margin: 0 0 1rem;
  color: var(--paper);
  max-width: 22ch;
}

.page-faq .lede {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 2.4vw, 1.08rem);
  line-height: 1.85;
  color: rgba(244, 239, 227, 0.82);
  max-width: 62ch;
  margin: 0 0 1.4rem;
}

.page-faq .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .hero-meta li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--mint);
  background: rgba(220, 235, 230, 0.08);
  border: 1px solid rgba(201, 164, 92, 0.42);
  padding: 0.35rem 0.7rem;
}

/* 主体两栏 */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding-top: clamp(1.5rem, 4vw, 2.75rem);
}

.page-faq .faq-rail {
  background: var(--ink-2);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-deep);
  padding: 1rem 0.9rem 1.1rem;
}

.page-faq .rail-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin: 0 0 0.75rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid rgba(201, 164, 92, 0.3);
}

.page-faq .rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .rail-list li + li {
  border-top: 1px dashed rgba(111, 140, 130, 0.28);
}

.page-faq .rail-list a {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.55rem 0.4rem;
  font-family: var(--font-body);
  font-size: 0.93rem;
  color: var(--paper);
  border-bottom: 0;
  border-left: 3px solid transparent;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .rail-list a:hover,
.page-faq .rail-list a:focus-visible {
  background: rgba(61, 224, 208, 0.1);
  border-left-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .rail-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold-deep);
  letter-spacing: 0.08em;
}

.page-faq .rail-foot {
  margin: 0.9rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(201, 164, 92, 0.25);
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--moss);
}

/* 章节 */
.page-faq .sec {
  border-top: 2px solid rgba(201, 164, 92, 0.38);
  padding-top: 1.15rem;
  margin-bottom: clamp(2.25rem, 5vw, 3.5rem);
  scroll-margin-top: 6rem;
}

.page-faq .sec-head {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  margin-bottom: 0.7rem;
}

.page-faq .sec-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--gold);
  flex-shrink: 0;
}

.page-faq .sec-title {
  font-family: var(--font-head);
  font-size: clamp(1.28rem, 3.6vw, 1.85rem);
  font-weight: 800;
  line-height: 1.28;
  margin: 0;
  color: var(--paper);
}

.page-faq .sec-lede {
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(244, 239, 227, 0.78);
  margin: 0 0 1.1rem;
  max-width: 60ch;
}

/* 步骤 */
.page-faq .steps {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.page-faq .steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.85rem;
  padding: 0.9rem 0;
  border-top: 1px dashed rgba(201, 164, 92, 0.3);
}

.page-faq .steps--tight li {
  padding: 0.75rem 0;
}

.page-faq .step-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  background: var(--gold);
  border: 2px solid var(--line);
  box-shadow: 3px 3px 0 rgba(16, 23, 20, 0.6);
  padding: 0.18rem 0.45rem;
  align-self: start;
  margin-top: 0.15rem;
}

.page-faq .step-body h3 {
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--paper);
  margin: 0 0 0.35rem;
  line-height: 1.45;
}

.page-faq .step-body p {
  margin: 0;
  font-size: 0.91rem;
  line-height: 1.85;
  color: rgba(244, 239, 227, 0.75);
}

/* 三线索卡 */
.page-faq .clue-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin: 1.1rem 0 0.4rem;
}

.page-faq .clue-card {
  background: var(--ink-2);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-deep);
  padding: 0.95rem 1rem 1.05rem;
  position: relative;
}

.page-faq .clue-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--gold));
}

.page-faq .clue-key {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-faq .clue-card h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0.35rem 0 0.4rem;
  color: var(--paper);
}

.page-faq .clue-card p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.8;
  color: rgba(244, 239, 227, 0.72);
}

/* 图片 */
.page-faq .faq-figure {
  margin: 1.5rem 0 0;
  border: var(--frame) solid var(--line);
  box-shadow: var(--shadow-hard);
  background: var(--ink-3);
  overflow: hidden;
}

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

.page-faq .faq-figure figcaption {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--moss);
  padding: 0.6rem 0.8rem;
  border-top: 1px solid rgba(201, 164, 92, 0.28);
}

.page-faq .faq-figure--portrait {
  max-width: 460px;
}

/* 折叠问答 */
.page-faq .fold {
  border: 2px solid var(--line);
  background: var(--ink-2);
  box-shadow: var(--shadow-deep);
  margin-bottom: 0.8rem;
  transition: border-color 0.2s var(--ease);
}

.page-faq .fold[open] {
  border-color: rgba(61, 224, 208, 0.55);
}

.page-faq .fold summary {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.85rem 0.9rem;
  cursor: pointer;
  list-style: none;
  border-bottom: 2px solid transparent;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

.page-faq .fold summary:hover,
.page-faq .fold summary:focus-visible {
  background: rgba(61, 224, 208, 0.08);
}

.page-faq .fold[open] summary {
  background: rgba(61, 224, 208, 0.1);
  border-bottom-color: rgba(201, 164, 92, 0.45);
}

.page-faq .fold-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--gold);
  flex-shrink: 0;
}

.page-faq .fold summary h3 {
  font-family: var(--font-head);
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.5;
  margin: 0;
  color: var(--paper);
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .fold-tick {
  flex-shrink: 0;
  width: 1.35rem;
  height: 1.35rem;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1;
  color: var(--cyan);
  border: 1px solid rgba(61, 224, 208, 0.55);
  background: rgba(61, 224, 208, 0.08);
}

.page-faq .fold-tick::before {
  content: "+";
}

.page-faq .fold[open] .fold-tick::before {
  content: "\2212";
}

.page-faq .fold-body {
  background: var(--mint);
  color: var(--ink);
  padding: 0.9rem 1rem 1rem;
  font-size: 0.9rem;
  line-height: 1.85;
}

.page-faq .fold-body p {
  margin: 0;
}

.page-faq .fold-body p + p {
  margin-top: 0.6rem;
}

.page-faq .fold-body a {
  color: var(--gold-deep);
  border-bottom: 1px solid rgba(140, 107, 47, 0.55);
}

.page-faq .fold-body a:hover,
.page-faq .fold-body a:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* 清单模板 */
.page-faq .tmpl-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin: 1.1rem 0 0.3rem;
}

.page-faq .tmpl-card {
  background: var(--ink-2);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-deep);
  padding: 1rem 1rem 1.1rem;
}

.page-faq .tmpl-card .tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
}

.page-faq .tmpl-card h3 {
  font-family: var(--font-head);
  font-size: 1.06rem;
  font-weight: 700;
  margin: 0.5rem 0 0.4rem;
  color: var(--paper);
}

.page-faq .tmpl-card p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.8;
  color: rgba(244, 239, 227, 0.72);
}

/* 联系支持 */
.page-faq .sec--support {
  background: linear-gradient(160deg, rgba(18, 59, 51, 0.95), rgba(7, 30, 26, 0.98));
  border: 2px solid var(--line);
  border-top-color: var(--orange);
  box-shadow: var(--shadow-hard);
  padding: 1.2rem 1rem 1.3rem;
  margin-bottom: 0;
}

.page-faq .support-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.page-faq .support-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.2rem;
  padding: 0.65rem 0;
  border-top: 1px dashed rgba(201, 164, 92, 0.3);
}

.page-faq .support-key {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-faq .support-val {
  font-family: var(--font-body);
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .support-tip {
  margin: 1rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px solid rgba(240, 138, 60, 0.4);
  font-size: 0.86rem;
  line-height: 1.85;
  color: rgba(244, 239, 227, 0.76);
}

/* 平板起步的增强 */
@media (min-width: 620px) {
  .page-faq .clue-grid,
  .page-faq .tmpl-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .support-list li {
    grid-template-columns: 8.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: 0.9rem;
  }

  .page-faq .fold summary {
    padding: 0.95rem 1.1rem;
  }

  .page-faq .fold-body {
    padding: 1rem 1.3rem 1.15rem;
  }
}

@media (min-width: 900px) {
  .page-faq .clue-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-figure--portrait {
    margin-left: auto;
    margin-right: auto;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 272px minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.25rem);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 7rem;
  }

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

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