.page-faq {
  --faq-hair: rgba(21, 26, 22, .1);
  --faq-hair-light: rgba(231, 216, 180, .22);
  --faq-panel: #FFFFFF;
  background: var(--paper);
  color: var(--char);
}

/* 面包屑置于深色首屏之上 */
.page-faq .breadcrumb {
  background: var(--ink-900);
  padding: .9rem 0 .2rem;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .04em;
}

.page-faq .breadcrumb__link {
  color: var(--sand-soft);
  text-decoration: none;
}

.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--cyan);
  text-decoration: underline;
}

.page-faq .breadcrumb__sep {
  color: rgba(247, 243, 233, .38);
}

.page-faq .breadcrumb__item--current {
  color: rgba(247, 243, 233, .72);
}

/* 首屏 */
.page-faq__hero {
  background-color: var(--ink-900);
  background-image: radial-gradient(circle at 84% 8%, rgba(53, 224, 208, .14), transparent 58%);
  color: var(--paper);
  padding: .9rem 0 clamp(2rem, 5vw, 3.4rem);
}

.page-faq__hero-inner {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.4rem);
}

.page-faq__hero-copy h1 {
  margin: .5rem 0 0;
  font-size: clamp(1.9rem, 5.4vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -.012em;
  font-weight: 800;
}

.page-faq__hero-copy h1::after {
  content: "";
  display: block;
  width: 74px;
  height: 6px;
  margin-top: 1rem;
  background: linear-gradient(90deg, var(--sand), var(--cyan));
  clip-path: polygon(0 0, 100% 0, 88% 100%, 0 100%);
}

.page-faq__lede {
  margin: 1.1rem 0 0;
  max-width: 48ch;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: rgba(247, 243, 233, .84);
}

.page-faq__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.4rem;
}

/* 控制台面板 */
.page-faq__console {
  background: var(--ink-800);
  border: 1px solid var(--faq-hair-light);
  border-radius: var(--r-lg);
  padding: clamp(1rem, 2.4vw, 1.5rem);
}

.page-faq__console-head {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--sand);
}

.page-faq__console-list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .9rem;
}

.page-faq__console-row {
  display: grid;
  grid-template-columns: 1.9rem minmax(0, 1fr) auto;
  align-items: center;
  gap: .3rem .65rem;
  font-size: var(--fs-sm);
  color: rgba(247, 243, 233, .9);
}

.page-faq__num {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--cyan);
  letter-spacing: .06em;
}

.page-faq__console-count {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--sand-soft);
}

.page-faq__meter {
  grid-column: 2 / -1;
  display: block;
  height: 5px;
  border-radius: var(--r-pill);
  background: rgba(231, 216, 180, .16);
  overflow: hidden;
}

.page-faq__meter-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--sand), var(--cyan));
}

.page-faq__meter-fill--a { width: 100%; }
.page-faq__meter-fill--b { width: 73%; }
.page-faq__meter-fill--c { width: 65%; }
.page-faq__meter-fill--d { width: 58%; }
.page-faq__meter-fill--e { width: 50%; }

/* 工作台 */
.page-faq__desk {
  background: var(--paper);
  padding: clamp(1.4rem, 4vw, 2.6rem) 0 clamp(2.6rem, 6vw, 4.4rem);
}

.page-faq__desk-grid {
  display: grid;
  gap: 1.4rem;
}

.page-faq__index {
  background: var(--ink-800);
  border-radius: var(--r-md);
  padding: 1rem 1rem 1.1rem;
  color: var(--paper);
}

.page-faq__index-title {
  margin: 0 0 .6rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sand);
}

.page-faq__index-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .12rem;
}

.page-faq__index-list a {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  padding: .5rem .65rem;
  border-left: 2px solid transparent;
  border-radius: var(--r-sm);
  color: rgba(247, 243, 233, .86);
  text-decoration: none;
  font-size: var(--fs-sm);
  transition: background-color 180ms var(--ease), border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-faq__index-list a span {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--sand-soft);
}

.page-faq__index-list a:hover,
.page-faq__index-list a:focus-visible {
  background: rgba(231, 216, 180, .12);
  border-left-color: var(--sand);
}

.page-faq__index-note {
  margin: .9rem 0 0;
  font-size: var(--fs-xs);
  line-height: 1.6;
  color: rgba(247, 243, 233, .62);
}

.page-faq__index-note a {
  color: var(--cyan);
  text-decoration: underline;
}

/* 目标区块高亮索引 */
.page-faq__desk-grid:has(#access:target) .page-faq__index-list a[href="#access"],
.page-faq__desk-grid:has(#feedback:target) .page-faq__index-list a[href="#feedback"],
.page-faq__desk-grid:has(#subscribe:target) .page-faq__index-list a[href="#subscribe"],
.page-faq__desk-grid:has(#version:target) .page-faq__index-list a[href="#version"],
.page-faq__desk-grid:has(#saved:target) .page-faq__index-list a[href="#saved"],
.page-faq__desk-grid:has(#prepare:target) .page-faq__index-list a[href="#prepare"] {
  background: rgba(53, 224, 208, .16);
  border-left-color: var(--cyan);
  color: var(--paper);
}

.page-faq__stream {
  display: grid;
  gap: 1.2rem;
  min-width: 0;
}

/* 快速定位 */
.page-faq__quick {
  background: var(--ink-800);
  color: var(--paper);
  border-radius: var(--r-lg);
  padding: clamp(1rem, 2.6vw, 1.6rem);
}

.page-faq__quick-title {
  margin: 0 0 .9rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--sand);
}

.page-faq .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 0 0 1rem;
  padding: 0 0 .8rem;
  border-bottom: 1px solid rgba(231, 216, 180, .2);
}

.page-faq .tabs__tab {
  appearance: none;
  border: 1px solid rgba(231, 216, 180, .3);
  background: transparent;
  border-radius: var(--r-pill);
  padding: .45rem .85rem;
  font-family: inherit;
  font-size: var(--fs-xs);
  letter-spacing: .04em;
  color: rgba(247, 243, 233, .78);
  cursor: pointer;
  transition: background-color 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .tabs__tab:hover,
.page-faq .tabs__tab:focus-visible {
  border-color: var(--sand);
  color: var(--paper);
}

.page-faq .tabs__tab[aria-selected="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
  font-weight: 700;
}

.page-faq__quick-panel {
  color: rgba(247, 243, 233, .88);
}

.page-faq__quick-list {
  margin: 0 0 .85rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .55rem;
  font-size: var(--fs-sm);
  line-height: 1.65;
}

.page-faq__quick-list li {
  display: grid;
  grid-template-columns: 1.5rem 1fr;
  gap: .5rem;
  align-items: start;
}

.page-faq__quick-list .page-faq__num {
  color: var(--sand);
  font-size: var(--fs-xs);
  padding-top: .18rem;
}

.page-faq__quick-link {
  display: inline-block;
  font-size: var(--fs-xs);
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, .5);
  padding-bottom: 2px;
}

.page-faq__quick-link:hover,
.page-faq__quick-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* 内容区块 */
.page-faq__block {
  background: var(--faq-panel);
  border: 1px solid var(--faq-hair);
  border-radius: var(--r-lg);
  padding: clamp(1.05rem, 2.8vw, 1.8rem);
  scroll-margin-top: calc(var(--header-h) + 1rem);
  min-width: 0;
}

.page-faq__block-head {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  padding-bottom: .7rem;
  border-bottom: 2px solid var(--ink-900);
}

.page-faq__block-num {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--sand);
  letter-spacing: .06em;
}

.page-faq__block h2 {
  margin: 0;
  font-size: var(--fs-h3);
  line-height: 1.35;
  letter-spacing: -.01em;
  font-weight: 800;
  color: var(--ink-900);
}

.page-faq__block-lede {
  margin: .85rem 0 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--slate);
}

.page-faq__block-lede a {
  color: var(--ink-700);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-faq__figure {
  margin: 1.1rem 0 .4rem;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--faq-hair);
  background: var(--mist);
}

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

.page-faq__figure figcaption {
  padding: .6rem .85rem;
  font-size: var(--fs-xs);
  line-height: 1.6;
  color: var(--slate);
  background: var(--paper);
  border-top: 1px solid var(--faq-hair);
}

/* 折叠条目 */
.page-faq__item {
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq__item:last-of-type {
  border-bottom: 0;
}

.page-faq__item summary {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  padding: .9rem 0;
  list-style: none;
  cursor: pointer;
  font-size: var(--fs-sm);
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink-900);
  transition: color 160ms var(--ease);
}

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

.page-faq__item summary:hover,
.page-faq__item summary:focus-visible {
  color: var(--ink-700);
}

.page-faq__item summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--sand);
}

.page-faq__item[open] summary::after {
  content: "–";
  color: var(--ink-700);
}

.page-faq__item-num {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--slate);
  flex: none;
  padding-top: .1rem;
}

.page-faq__item-body {
  padding: 0 0 1.05rem 1.9rem;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--char);
}

.page-faq__item-body p {
  margin: 0;
}

.page-faq__item-body a {
  color: var(--ink-700);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-faq__steps {
  margin: 0;
  padding-left: 1.15rem;
  display: grid;
  gap: .4rem;
  color: var(--slate);
}

.page-faq__steps li::marker {
  font-family: var(--font-mono);
  color: var(--sand);
}

/* 反馈类型 */
.page-faq__kinds {
  margin: 1.1rem 0 .5rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .6rem;
}

.page-faq__kinds li {
  display: grid;
  gap: .35rem;
  padding: .7rem .85rem;
  background: var(--mist);
  border-radius: var(--r-sm);
  border-left: 3px solid var(--sand);
}

.page-faq__kinds p {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--char);
}

.page-faq__tags {
  margin: 1rem 0 .6rem;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
}

/* 对比表 */
.page-faq__table-wrap {
  margin-top: 1.1rem;
  overflow-x: auto;
  border-radius: var(--r-sm);
  border: 1px solid var(--faq-hair);
}

.page-faq__compare {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: var(--fs-sm);
}

.page-faq__compare th {
  text-align: left;
  padding: .65rem .75rem;
  background: var(--sand-soft);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .1em;
  font-weight: 600;
  white-space: nowrap;
}

.page-faq__compare td {
  padding: .7rem .75rem;
  border-top: 1px solid var(--faq-hair);
  line-height: 1.6;
  color: var(--char);
  vertical-align: top;
}

.page-faq__compare tbody tr:nth-child(even) td {
  background: rgba(237, 239, 230, .6);
}

.page-faq__mono {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--ink-700);
  letter-spacing: .04em;
  white-space: nowrap;
}

/* 准备清单 */
.page-faq__mono-list {
  margin: 1.1rem 0 0;
  padding: 1rem 1.05rem;
  list-style: none;
  display: grid;
  gap: .7rem;
  background: var(--mist);
  border-left: 3px solid var(--ink-900);
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  line-height: 1.75;
  color: var(--char);
}

.page-faq__mono-list li span {
  display: inline-block;
  min-width: 3.6rem;
  color: var(--ink-700);
  letter-spacing: .08em;
}

.page-faq__note {
  margin: 1rem 0 0;
  font-size: var(--fs-xs);
  line-height: 1.7;
  color: var(--slate);
}

/* 底部行动 */
.page-faq__cta {
  background: var(--ink-900);
  background-image: radial-gradient(circle at 92% 100%, rgba(200, 164, 92, .22), transparent 60%);
  color: var(--paper);
  border-radius: var(--r-lg);
  padding: clamp(1.2rem, 3.4vw, 2rem);
}

.page-faq__cta h2 {
  margin: 0;
  font-size: var(--fs-h3);
  line-height: 1.35;
  font-weight: 800;
}

.page-faq__cta p {
  margin: .7rem 0 0;
  max-width: 46ch;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: rgba(247, 243, 233, .82);
}

.page-faq__cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.2rem;
}

/* 桌面端 */
@media (min-width: 760px) {
  .page-faq__hero-inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr);
    align-items: end;
    gap: clamp(1.8rem, 4vw, 3.4rem);
  }

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

  .page-faq__figure--narrow {
    max-width: 34rem;
  }
}

@media (min-width: 1024px) {
  .page-faq__desk-grid {
    grid-template-columns: 16rem minmax(0, 1fr);
    gap: clamp(1.6rem, 3.2vw, 2.8rem);
    align-items: start;
  }

  .page-faq__index {
    position: sticky;
    top: calc(var(--header-h) + 1rem);
  }

  .page-faq__item-body {
    padding-left: 2.1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .tabs__tab,
  .page-faq__index-list a,
  .page-faq__item summary {
    transition: none;
  }
}