.page-faq {
  padding-bottom: clamp(48px, 8vw, 96px);
  color: var(--ink);
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

.page-faq .faq-hero {
  padding-top: clamp(24px, 4vw, 44px);
  padding-bottom: clamp(22px, 3.5vw, 36px);
  border-bottom: 1px solid var(--sand);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 20em;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.9rem, 5.2vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--deep);
}

.page-faq .eyebrow {
  margin-top: 18px;
  color: var(--clay);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 38em;
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__facts li {
  position: relative;
  padding-left: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--clay);
}

.page-faq .faq-hero__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 8px;
  background: var(--orange);
}

.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  padding-top: clamp(28px, 4.5vw, 52px);
}

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

.page-faq .faq-rail {
  display: none;
}

.page-faq .faq-sec + .faq-sec {
  margin-top: clamp(38px, 6vw, 68px);
  padding-top: clamp(28px, 4vw, 46px);
  border-top: 1px solid var(--sand);
}

.page-faq .faq-sec__intro {
  margin: 16px 0 0;
  max-width: 42em;
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .faq-sec__outro {
  margin: 24px 0 0;
  max-width: 42em;
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .faq-sec a:not(.faq-btn) {
  color: var(--sky);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 01 步骤条 */
.page-faq .steps {
  display: grid;
  gap: 0;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .steps__item {
  position: relative;
  padding: 0 0 22px 18px;
  border-left: 3px solid var(--orange);
}

.page-faq .steps__item:last-child {
  padding-bottom: 0;
}

.page-faq .steps__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--clay);
}

.page-faq .steps__title {
  margin: 8px 0 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.15rem;
  line-height: 1.35;
  color: var(--deep);
}

.page-faq .steps__text {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .steps__out {
  margin: 10px 0 0;
  padding: 8px 12px;
  background: var(--paper-dim);
  border-left: 2px solid var(--jade);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--deep);
}

/* 复制路径 */
.page-faq .faq-copy {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 26px;
  padding: 14px 16px;
  border: 1px solid var(--deep);
  background: var(--paper-dim);
}

.page-faq .faq-copy__path {
  flex: 1 1 220px;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  word-break: break-word;
  color: var(--deep);
}

.page-faq .faq-copy__btn {
  flex: 0 0 auto;
  padding: 8px 14px;
  border: 1px solid var(--clay);
  background: transparent;
  color: var(--clay);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  cursor: pointer;
}

.page-faq .faq-copy__btn:hover {
  background: var(--clay);
  color: var(--paper);
}

/* 02 入口 */
.page-faq .entry-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-top: 24px;
}

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

.page-faq .entry-list__item {
  padding: 16px 0;
  border-top: 1px solid var(--sand);
}

.page-faq .entry-list__item:last-child {
  border-bottom: 1px solid var(--sand);
}

.page-faq .entry-list__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--clay);
}

.page-faq .entry-list__item p {
  margin: 8px 0 0;
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .entry-figure {
  margin: 0;
}

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

.page-faq .entry-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--clay);
}

/* 03 复盘页结构 */
.page-faq .review-blocks {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 26px;
}

.page-faq .rev-block {
  position: relative;
  padding: 18px 18px 20px;
  border: 1px solid var(--deep);
  background: var(--paper);
}

.page-faq .rev-block__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--clay);
}

.page-faq .rev-block__title {
  margin: 8px 0 10px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.08rem;
  line-height: 1.4;
  color: var(--deep);
}

.page-faq .rev-block__text {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .rev-block--metrics {
  background: var(--deep);
  border-color: var(--deep);
}

.page-faq .rev-block--metrics .rev-block__idx {
  color: var(--amber);
}

.page-faq .rev-block--metrics .rev-block__title {
  color: var(--white);
}

.page-faq .rev-block--metrics .rev-block__text {
  color: var(--paper);
}

/* 04 术语表 */
.page-faq .gloss-figure {
  margin: 26px 0 0;
}

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

.page-faq .gloss-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--clay);
}

.page-faq .gloss {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin: 24px 0 0;
}

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

.page-faq .gloss__term {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 13px 2px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.05em;
  color: var(--deep);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .gloss__term::after {
  content: "+";
  margin-left: auto;
  font-size: 15px;
  line-height: 1;
  color: var(--clay);
}

.page-faq .gloss__item[open] .gloss__term::after {
  content: "–";
}

.page-faq .gloss__code {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--sky);
}

.page-faq .gloss__def {
  margin: 0 0 16px;
  padding-right: 12px;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

/* 05 主客场读法 */
.page-faq .reads {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 26px;
}

.page-faq .read-way {
  padding: 18px 18px 20px;
  border: 1px solid var(--sand);
  border-top: 3px solid var(--sky);
  background: var(--paper);
}

.page-faq .read-way__tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--sky);
}

.page-faq .read-way__title {
  margin: 8px 0 10px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.4;
  color: var(--deep);
}

.page-faq .read-way__text {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .axis-art {
  height: 14px;
  margin: 28px 0 10px;
  background: repeating-linear-gradient(
    100deg,
    var(--clay) 0 40px,
    var(--sky) 40px 78px,
    var(--sand) 78px 96px
  );
}

.page-faq .axis-art__note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--clay);
}

/* 06 订阅 */
.page-faq .sub-panel {
  margin-top: 26px;
  border: 1px solid var(--deep);
  background: var(--paper);
}

.page-faq .sub-row {
  display: flex;
  gap: 16px;
  padding: 18px;
  border-bottom: 1px solid var(--sand);
}

.page-faq .sub-row:last-child {
  border-bottom: 0;
}

.page-faq .sub-row__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--clay);
}

.page-faq .sub-row__body {
  min-width: 0;
}

.page-faq .sub-row__title {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.4;
  color: var(--deep);
}

.page-faq .sub-row__body p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
}

/* 07 问答 */
.page-faq .qgroups {
  margin-top: 8px;
}

.page-faq .qgroup__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 30px 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.16em;
  color: var(--clay);
}

.page-faq .qgroup__title::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--sand);
}

.page-faq .qa {
  margin-bottom: 10px;
  border: 1px solid var(--deep);
  border-left: 4px solid var(--clay);
  background: var(--paper);
}

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

.page-faq .qa__q {
  position: relative;
  display: block;
  padding: 14px 62px 14px 16px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--deep);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__q::after {
  content: "展开";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--clay);
}

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

.page-faq .qa__a {
  padding: 0 16px 16px;
}

.page-faq .qa__a p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink);
}

/* 08 联系 */
.page-faq .help-box {
  margin-top: 24px;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--deep);
  background: linear-gradient(135deg, var(--paper-dim), var(--paper) 62%);
}

.page-faq .help-box__text {
  margin: 0;
  max-width: 40em;
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .help-box__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--sand);
}

.page-faq .help-box__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--clay);
}

.page-faq .help-box__val {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  word-break: break-all;
  color: var(--deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-btn {
  display: inline-block;
  margin-top: 22px;
  padding: 12px 26px;
  border: 1px solid var(--deep);
  background: var(--orange);
  color: var(--deep);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.page-faq .faq-btn:hover {
  background: var(--orange-deep);
  color: var(--white);
}

/* 侧栏 */
.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--clay);
}

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

.page-faq .faq-rail__link {
  display: flex;
  gap: 8px;
  padding: 7px 4px 7px 10px;
  border-left: 2px solid transparent;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.05em;
  color: var(--deep);
  text-decoration: none;
}

.page-faq .faq-rail__link span {
  color: var(--clay);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link[aria-current="location"] {
  border-left-color: var(--clay);
  background: var(--paper-dim);
  color: var(--clay);
}

.page-faq .faq-top {
  display: inline-block;
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--clay);
  text-decoration: none;
}

/* 断点 */
@media (min-width: 760px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: 26px;
  }

  .page-faq .steps__item {
    padding: 20px 0 0;
    border-left: 0;
    border-top: 3px solid var(--sand);
  }

  .page-faq .steps__item::before {
    content: "";
    position: absolute;
    top: -3px;
    left: 0;
    width: 58px;
    height: 3px;
    background: var(--orange);
  }

  .page-faq .gloss {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 36px;
  }

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

@media (min-width: 820px) {
  .page-faq .review-blocks {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.85fr);
    grid-template-areas:
      "trend metrics"
      "timeline metrics";
    align-items: start;
  }

  .page-faq .rev-block--trend {
    grid-area: trend;
  }

  .page-faq .rev-block--timeline {
    grid-area: timeline;
  }

  .page-faq .rev-block--metrics {
    grid-area: metrics;
    height: 100%;
  }
}

@media (min-width: 900px) {
  .page-faq .entry-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    column-gap: 32px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: 190px minmax(0, 1fr);
    column-gap: clamp(32px, 4vw, 60px);
  }

  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 20px);
    align-self: start;
  }
}